Thursday, October 31, 2019

International B Essay Example | Topics and Well Written Essays - 1500 words

International B - Essay Example The specific Forum reflects the trends in globalisation as developed both in the literature and the empirical field – i.e. the daily activities and policies of governmental and non-governmental organizations. The concept of globalisation has been considered to include seven different forces: in this paper, emphasis is given on the globalisation of markets – one of the seven forces mentioned above. The trends on the globalisation of markets – as highlighted in relevant studies – could help to understand the importance of this concept for the increase of the effectiveness of governmental and commercial strategies. The globalisation of markets has affected the strategies and performance of governmental and non-governmental organizations – referring especially to the commercial firms – both positively and negatively. The specific issue is highlighted in the study of Perrone et al. (2010) who focus on the effects of globalisation on small and medium enterprises – a study which can be used also in order to evaluate the effects of globalisation on large and multinational firms. In accordance with Perrone et al. (2010) ‘globalisation represents a threat, since new emerging companies are entering their domestic market, but on the other hand, it represents the opportunity to enter new emerging and growing markets’ (Perrone et al., 2010, p.356). From another point of view, globalisation can highly affect a speficic part of commercial firms: the corporate governance (Berry, 2010, 234); the different principles and cultures of the global market and the national market c ould negatively affect the firms that try to enter the global market. The importance of culture, the social ethics and the political system – actually referring to the traditions, the social principles and the politics of a specific country - on the success of the efforts for entering the global market is also highlighted in the study of Standing et al. (2010, p. 56). The above

Tuesday, October 29, 2019

Shell Oil Company and the Technology Management Issues That It Faces Research Proposal

Shell Oil Company and the Technology Management Issues That It Faces - Research Proposal Example This report stresses that Shell uses a wide variety of technologies to deliver hydrocarbon fuels that are essential for all types of transport systems on which humanity has come to depend upon so heavily. The unquenchable thirst for hydrocarbon fuels has today forced oil firms to produce in deep oceans, but it makes sense to try to develop radically new systems, especially for transport. After all, hydrocarbon fuels are responsible for climate change and environmental degradation that cannot be sustained. Thus, radical new ideas are needed for new transport systems. However, the array of technology on which Shell depends is so vast that it is impossible for this company to assist in developing everything. Immediate benefits are possible from technology improvements in areas that are of interest to Shell production and operation, but being an energy company with a transport focus Shell is likely to benefit from anything that can reshape energy systems for transport. This paper makes a conclusion that Shell can continue to identify and develop the best and most promising, but it should also try to invest in the long-term future of humankind. Energy, the environment and climate are the long-term future because with the best of the previously mentioned, it will be difficult to continue to have a secure future. Multinationals must now try to look beyond the immediate future and their short-term profits. Attempts have to be made to try to develop solutions for the long term and efforts cannot remain confined to government or the public sector only.

Sunday, October 27, 2019

Potassium Sorbate as a Biocide | Evaluation

Potassium Sorbate as a Biocide | Evaluation Evaluation of Potassium Sorbate as a Biocide to Reduce Viability of Total Airborne Fungi in a Higher Educational Building of Computer Studies Chin Ming Er1,a *, N. M. Sunar 2,b, Abdul Mutalib Leman2,c, Othman Norzila1,d, Quin Emparan1,e, Umi Kalthsom1,f, Paran Gani1,g, Nurul Azreen Jamal1,h 1Department of Water And Environmental Engineering (DWEE), Faculty of Civil And Environmental Engineering (FKAAS), University Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia 2Department of Chemical Engineering Technology, Faculty of Engineering Technology (FTK), Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia Keywords: Indoor Air Quality, mold remediation, bioactive compounds. Abstract In countries which are humid throughout the year, mold is a common problem that can occur even on a computer keyboard. It is smelly and may damage the computer keyboards. It is caused by fungal spores in the air. It can also affect occupants’ healthiness. This study is aimed to evaluate the efficiency of potassium sorbate to reduce viability of indoor airborne fungi in a higher educational building of computer studies of a university located at Southern Peninsular Malaysia. Malt extract agar (MEA) was incorporated with the biocide and was used for air sampling of fungi at 3 different sites of the building including outdoors. The effectiveness of the biocide was evaluated by comparing the treated agar against the untreated agar. It was clearly shown that the biocide can effectively reduce the numbers of colony forming units of the airborne fungi at all 3 tested sites (>70% averagely) on the treated culture media, while the untreated media at all three sites was colonized by fun gi with different concentration. Introduction Indoor airborne fungal contamination is a very common issue nowadays. Its presence brings a lot of problems to indoor occupants, building owners or managers as it affects the indoor air quality (IAQ) of those infected buildings and it has been associated with unhealthy symptoms including headache, asthma, allergy and irritant effects, respiratory problems, mycoses (fungal diseases) and several other non-specific health problems [1]. IAQ is defined as the air quality within an enclosed building that leads to the comfort and healthiness of its occupiers [2]. It is a major concern as most people in the developed and developing countries, such as Malaysia, Singapore, Indonesia and others, spent most of their time indoor in either offices, factories, homes or educational buildings. It has been estimated that approximate 10% of people worldwide and 5% of the population in industrial countries have fungal allergies [3,4]. Some fungi such as Aspergillus versicolor and Stachybotrys chartarum are able to produce mycotoxins and have been associated with sick building syndrome [1] Many animal studies have confirmed that mycotoxins are associated with carcinogenic, immune-suppressive, and other properties [5]. Fungi release tiny spores that float through the air and land on other locations to reproduce. When they settle on moist surfaces, the spores can form new mold colonies. If these airborne fungal spores or mycotoxins are inhaled into bronchia and alveoli, they will be lysed and the human body thereby exposed to the primary and secondary metabolites [6]. Inhalation exposure has been suggested to cause acute kidney failure, damage of the upper respiratory tract, and central nervous system damage [7]. Thus, the existence of these fungi is intolerable in indoor enviro nment. Fungi can grow anywhere over a wide-ranging temperature with sufficient nutrients and moisture [8]. Therefore, indoor mold problem has long existed in yearlong warm and humid countries like Malaysia and other Southeast Asian countries. In previous research, airborne fungi growth was found in a high humid room (relative humidity ~87%) in a higher educational building of computer studies after conventional remediation such as detergent-cleaning and changing of the affected ceiling boards [9]. It is dangerous since researchers suggested that the chances of transmitting the contaminating microbes through using of computers in a university setting is potentially great due to the enormous usage of computer keyboards that are not routinely sanitized by numerous users daily [10]. The study also shows that the conventional remediation is not a long term solution to circumvent the indoor airborne fungal contamination. However, green solutions are needed to reduce the viability of the airborne fungi and thereby the existence of secondary metabolites of fungi in indoor setting in order to secure the quality of teaching and learning among educators and students in a university building. Lately, a bioactive compound from food industry, potassium sorbate had been shown to be able to control the growth of two fungus species (Chaetomium globosum and Alternaria alternate) isolated from an indoor waterborne coating [11]. It is suggested to be effective against airborne fungi too. Therefore, this study aimed to evaluate the ability of potassium sorbate as a biocide to render the viability of indoor airborne fungi in a higher educational building of computer studies of a university located at Southern Peninsular Malaysia. Materials and Methods Selection of Testing Sites. The indoor airborne fungal samples were taken from a new commissioning higher educational building of computer studies of a university in Johor, Malaysia that had been identified of having microbial growth in indoor environment from previous research [9]. Three sites were selected by walk through inspection. They were each to represent a microbial-contaminated site (A), relatively mildly-contaminated site (B) and outdoors (O) of the building. The location for outdoor sampling was as close as possible to the outdoor air intake for the primary air handling system for the building [12]. Biocide Antifungal Activity. The antifungal activity of the potassium sorbate as a biocide was evaluated by air sampling with biocide-treated and untreated culture media which takes into account that the concentration of the viable fungi can be represented by colony forming unit (CFU) analysis as the calculation below: CFU/m3 = [Number of colonies x 1000] à · [Sampling time (min) x Flow rate (L/min)]. (1) The airborne fungi samples were collected using a BioStage single-stage viable cascade impactor (SKC, USA) attached to a SKC QuickTake 30 Sample Pump (SKC, USA) onto Malt Extract Agar (MEA) plates with 0.03% (w/v) biocide at a flow rate of 28.3 L/min as per requirement of National Institute of Occupational Safety and Health (NIOSH) stated in method NIOSH Manual Analytical Standard Method (NMAM 0800). The impactor was located at the centre of the sampling location at a height of 1.0 to 1.5 meter above the floor. Every sample was obtained over 5 minute periods. The same procedure was carried out with control MEA without biocides. Both kinds of sampling with treated and untreated MEA were done in triplicate at each site on the same day during office hours and in the presence of indoor occupants. The air samplings at different sites were carried out on different week. The samples were analysed for total airborne fungi count by incubating them at 37 °C for 5 days and counting of the col ony formed was done thereafter. Results and Discussions The viability of total airborne fungi on the biocide-treated MEA was successfully reduced by 76.2% averagely if compared to their viability on control MEA without biocide (Fig. 1). Notably, potassium sorbate showed the best performance at the mildly-contaminated site, which had the lowest total airborne fungi on control MEA, by successfully reducing the viability of total indoor airborne fungi by 84.2% on biocide-treated MEA. Meanwhile, its performance dropped when the mean concentrations of total airborne fungi on control MEA increase. The percentage of reduction of viability of total airborne fungi at the contaminated site and outdoors of the building are 63.9% and 80.4% respectively. The results indicate that potassium sorbate can show the best performance to control total indoor airborne fungi concentrations if it is applied in a clean environment. This is in accordance with the function of potassium sorbate in wine-making industry to prevent a second fermentation through renderi ng any surviving yeast incapable of metabolizing and multiplying [13]. Hence, it is suggested that this biocide is very suitable to be applied together with and after conventional remediation of indoor fungal contamination periodically. Fig. 1: Comparison of viability of total airborne fungi on biocide-treated and untreated MEA. According to Industry Code of Practice on Indoor Air Quality (ICOP-IAQ 2010) set by Department of Occupational Safety and Health Malaysia, the maximum exposure limit of total indoor airborne fungi concentrations is 1000 CFU/m3. Any value of the concentrations of indoor airborne fungi that approaches or over 500 CFU/m3 can be also considered as a possible health hazard. In this study, this number was successfully reduced to below 100 CFU/m3 at two of the three testing sites and below 200 CFU/m3 at the contaminated site. These reductions might be due to high solubility of this biocide in water of growth media to convert to sorbic acid that exhibits potent antifungal properties with various mode of action such as genetic changes, alteration of morphological structure of cell, inhibition of enzymes and cell transport processes [14]. All of these after-treatment’s numbers suggests that potassium sorbate is a proper biocide to maintain the concentrations of total indoor airborne fun gi at an acceptable healthy level for human beings. In a higher educational building of computer studies, computers are always shared. Touches of computer parts especially computer keyboards by students always occur without practicing of hand hygiene. The sweats or dirt on the hands and fingers of students left on the computer parts after they using them. This in turn provides nutrients and breeding sites for airborne fungi that settle on these computer parts. The reduction of the viability of indoor airborne fungi on the biocide-treated media indicates that the airborne fungi are unable to grow on the substrate that are treated with potassium sorbate and thus suggesting that this biocide can be applied on various wall coatings, surfaces of furniture and electrical appliances including these computer parts. In conclusion, the results of this study indicate that potassium sorbate is fit to be applied as a biocide in a higher educational building of computer studies to reduce the viability of indoor airborne fungi. This in turn reduces the amounts of secondary metabolites of fungi such as mycotoxin and fungal spores that can induce sick building syndrome and other unpleasant and uncomfortable feeling of indoor occupants. Acknowledgement The authors greatly appreciate Universiti Tun Hussein Onn Malaysia (UTHM) and the supporting Fundamental Research Grant Scheme (FRGS) 1479 for facilitating the work and National Institute of Occupational Safety and Health Malaysia (NIOSH) for providing technical assistance. References Kuhn, D. M., Ghannoum, M. A. (2003). Indoor mold, toxigenic fungi, and Stachybotrys chartarum: infectious disease perspective. Clinical microbiology reviews, 16(1), 144-172. Yau, Y.H.; Chew, B.T.; and Saifullah, A.Z.A. (2012) Studies on the indoor air quality of Pharmaceutical Laboratories in Malaysia. International Journal of Sustainable Built Environment 1, 110–124. Pasanen, A. L., Lappalainen, S., Pasanen, P. (1996). Volatile organic metabolites associated with some toxic fungi and their mycotoxins.Analyst, 121(12), 1949-1953. Hardin, B.D., Kelman, B.J. and Saxon, A. (2003) Adverse human health effects associated with molds in the indoor environment. J Occup Environ Med 45, 470–478. Robbins, C. A., Swenson, L. J., Nealley, M. L., Kelman, B. J., Gots, R. E. (2000). Health effects of mycotoxins in indoor air: a critical review.Applied occupational and environmental hygiene,15(10), 773-784. Fischer, G., Dott, W. (2003). Relevance of airborne fungi and their secondary metabolites for environmental, occupational and indoor hygiene.Archives of Microbiology,179(2), 75-82. Miller, J. D. (1992). Fungi as contaminants in indoor air.Atmospheric Environment. Part A. General Topics,26(12), 2163-2172. Dangman, K. H., Schenck, P., DeBernardo, R. L., Yang, C. S., Bracker, A., Hodgson, M. J. (2004).Guidance for clinicians on the recognition and management of health effects related to mold exposure and moisture indoors. Farmington, CT: University of Connecticut Health Center, Division of Occupational and Environmental Medicine, Center for Indoor Environments and Health. Er, C. M., Sunar, N. M., Mutalib, A., Norzila, O., Emparan, Q., Kalthsom, U., Gani, P., Jamal, N. A., Ideris, N. A. (2014). The Evaluation of Indoor Microbial Air Quality in a Southern Malaysia University’s New Commissioning Buildings. Applied Mechanics and Materials (in press). Anderson, G., Palombo, E. A. (2009). Microbial contamination of computer keyboards in a university setting.American journal of infection control,37(6), 507-509. Bellotti, N., Salvatore, L., Deyà ¡, C., Del Panno, M. T., del Amo, B., Romagnoli, R. (2013). The application of bioactive compounds from the food industry to control mold growth in indoor waterborne coatings. Colloids and Surfaces. B, Biointerfaces, 104, 140–4. Reynolds, S. J., Black, D. W., Borin, S. S., Breuer, G., Burmeister, L. F., Fuortes, L. J., Whitten, P. (2001). Indoor environmental quality in six commercial office buildings in the midwest United States.Applied occupational and environmental hygiene,16(11), 1065-1077. Cojocaru, G. A., Antoce, A. O. (2012). Chemical And Biochemical Mechanisms of Preservatives Used in Wine: A Review.dio,1, 100. Smilanick, J. L., Mansour, M. F., Gabler, F. M., Sorenson, D. (2008). Control of citrus postharvest green mold and sour rot by potassium sorbate combined with heat and fungicides.Postharvest Biology and Technology,47(2), 226-238.

Friday, October 25, 2019

Implications of Modernist Thought in Tender Is the Night Essay

Implications of Modernist Thought in Tender Is the Night      Ã‚   The implications of modernist thought in F. Scott Fitzgeralds' Tender Is the Night, become apparent when conceptualizing crime and punishment. Besides the murder of the Negro in the Parisian hotel, the idea of crime is plastic; adultery, deceit, moral depravity barely have consequences. Actions committed with good intentions often end in despair, such as the marriage of Dick and Nicole Diver. Similarly, seduction and dissimulation are not often met with ensuing punishment. Actions, whether they be morally right or wrong, tend to remain in a staid state without the traditional response. The modernists place characters in various moments and situations that do not necessarily conclude in the set conception of "punishment."    Nicole and Dick Diver both commit "crimes" of infidelity during their marriage. While Dick's tryst with Rosemary ceases without any succinct culmination, Nicole sleeps with Tommy and ends her marriage to elope with him. Neither crime however, is met with a punishment. While Dick slowly loses his manner of attraction and wiles with women, he sinks into apathy and alcoholism. Fitzgerald does not seem to be punishing Dick in any way for his fleeting romance with Rosemary; rather, his empty life is almost an inevitability, another set of moments without weighty cause or effect. Nicole's actual instant of infidelity is described as a "moment" - not as a crime, a moral dilemma or anything deserving traditional punishment. She drifts into her affair in the same way she tends to her garden or glances at her children. Her love for Tommy Barban is simply situational; Dick was no longer fulfilling her in the manner she expect... ...s vision of Rosemary and his undying need for her body in his arms, he calls Nicole and demands that they have dinner and see a play in the evening. The crime is masked completely by the conventions that surround their lives. The punishment, therefore, remains unclear. They both continue a farce of a relationship while lying to themselves and negating any concept of criminality in their own actions. The moments come and go, the crimes and punishments are vague and ephemeral. The crimes of each of all the characters eventually effect their own psyches - their lives are damaged by their apparent neglect of reality. Living in each moment without bearing the consequences has a acute effect on Dick, but mostly leaves Nicole, Tommy and Rosemary unbroken.    Works Cited Fitzgerald, F. Scott. "Tender is the Night" Scribner Paperback Fiction, 1933.   

Thursday, October 24, 2019

Kudler Fine Foods IT Security Report and Presentation †Top Threats

Kudler Fine Foods IT Security Report and Presentation – Top Threats Team B has been commissioned to examine the Kudler Fine Foods’ (KFF), frequent shopper, Customer Loyalty Program that is currently in development. The team has also been asked to direct the system development team to ensure the system is established securely so that it properly protects company data and customer information throughout all stages of the system development process. In week 2, the team will examine the Customer Loyalty Program for vulnerabilities in different areas of the system. The study will define the possible threats that exist to the security of the organization’s and the customers’ data and information, the potential vulnerabilities each threat may exploit, and area of the system affected by the threats. Additionally, a summary of the most critical threats to Kudler’s Customer Loyalty Program will be provided. The following table presents the possible threats, t he potential vulnerabilities each threat may exploit, and area of the system effected by the threats: Area of SystemsThreat Potential Vulnerability Networks Unauthorized access Unsecured equipment roomConfidentiality breach E-mail that doesn't employ scanning of messagesDenial of Service Lack of inside firewall can lead to worm spreadNatural Disaster Potential issues from lack of redundancySniffing Network infiltration via wireless access point Workstations Unauthorized access Patches not currentSniffing Old software versionsNatural Disaster Firewall not active Servers Unauthorized access Patches not currentSniffing Old software versionsNatural Disaster Firewall not active Employees Social Engineering Training not currentCorruption UnhappyMalicious behavior poor work ethic Data Corruption Non securedDeletion Unencrypted data Software Corruption Non-securedDeletion Software that does not employee authorized user access Building Tailgating Front door that doesn't have employee securit y guardUnauthorized access Compromised key card accessOf the possible threats to Kudler Fine Foods’ Customer Loyalty Program there are two critical threats discovered during our assessment that warrents Kudler’s immediate attention. The first of these threats is Social Engineering. Social Engineering according to Social-Engineer.org (2013), is â€Å"the act of influencing a person to accomplish goals that may or may not be in the ‘target’s’ best interest. This may include obtaining information, gaining access, or getting the target to take certain action.† The employees themselves are the area of the system affected by this threat. Social Engineering exploits their naivety. General lack of experience in recognizing this type of attack is a major reason for its success. Education on what Social Engineering is and how to recognize attacks coupled with company policies written, put into place, and enforced to prevent individuals from divulging o r even having access to certain information no matter the scenario is the recommended course of action.Next is Denial of Service. According to Conklin, White, Williams, Davis, and Cothren (2012), a Denial of Service (DoS) attack is an attack intended to disrupt a system or service from operating normally. The attacker will attempt, through means of crashing the system, closing out a logged on session, or overwhelming a machine with multiple requests that causes the machine to freeze up or as  stated crash. Kudler’s Customer Loyalty Program information could be affected because the program that accesses customer information could be made unavailable by such a DoS attack.This could cause events such as slow terminal responses, systems going offline while updating customer files, and causing system reboots to return to normal operation. This type of attack exploits the weakness of either not having a firewall running in the terminal or server background or a poorly set up fire wall allowing too many network requests to be handled by the system. Kudler’s IT department should be aware of this and conduct a system check to ensure that the firewall allows requests from only internal or authorized external sources.As requested by Kudler Fine Foods, Team B has conducted an examination of the Customer Loyalty Program concerning the possible threats and vulnerabilities to their system. A table presenting these threats and vulnerabilities as well as the areas of the system affected has been made available for review. In addition, a summary of the top two critical threats that must be addressed by Kudler Fine Foods has been provided.

Wednesday, October 23, 2019

The Roles of Tonal and Segmental Information in Mandarin Spoken

Assignment 1 – Article Summary In their article, â€Å"the roles of tonal and segmental information in Mandarin spoken word recognition: an eyetracking study†, Malins and Joanisse investigate how suprasegmental features affect on-line auditory word perception. Current speech perception models have fallen short in accounting for suprasegmental features because all have been based on Indo-European languages. In this study, Malins and Joanisse extend the potential of suprasegmental features by examining the role of tone in auditory word recognition.Preliminary studies on which Malins and Joanisse based their study show that features of stress alone could not account for word constraint activation. One of the reasons that stress was a poor candidate for word constraint during lexical priming tasks was that they were situated within polysyllabic structures. Tone features, on the other hand, are situated within monosyllabic structures. Listeners of tonal languages are require d to make distinctions based on these features alone. In addition, these preliminary studies showed that tonal information was processed after segmental information.However, these propositions were brought into question as Liu and Samuel (2007) discovered that most of the preliminary studies in speech perception did not utilize contextual constraints. More recent studies seem to show that tonal features are more effective in constraining word activation when in a sentential context and segmental features more effective in word constraint in a lack of contextual information. Malins and Joanisse set out to examine the role of tonal features in Mandarin word recognition by employing the visual world paradigm.This would allow the use of eye tracking which would measure the on-line auditory processing among four competitor categories – segmental, cohort, rhyme and tonal. The segmental category shared all phonemic features except for tones, the cohort shared all but word final phon emes, the rhyme differed in onset consonant, and the tonal shared only tone. The following was hypothesized: tonal and segmental information would be accessed at very similar points in time and share equal potential for word recognition constraint.Additionally, rhyme competitors would be viewed more than unrelated items and that tonal categories would produce little interference effect with target items. Twenty-four native Mandarin speakers were chosen as participants in this study. The mean age was 28, although seven were excluded from the study due to excessive use of peripheral vision (lack of eye movement data). Experimental stimuli comprised of 27 monosyllabic Mandarin words. The unrelated distractor tones were comprised of phonologically unrelated segments.A picture array was shown on screen for 1. 5s followed by a . 5 second transition at which point the central fixation point appeared. Participants focused on the fixation point while selecting the correct target picture for the spoken utterance. When the auditory stimulus was provided, the time course was measured through observing eye movements. If there were significant interference between tone and segment, then processing times would be increased therefore suggesting comparable roles in constraining word activation.The pictures in the array provided conceptual constraint. This ensured that sub-lexical access was being observed. This visual word picture matching task was used to create an environment that demanded lexical access using conceptual constraint. This method would supplement the hypothesis by leading participants to utilize tonal information. In the tasks, the act of pressing a button demanded lexical access and the four competitor pictures provided the conceptual constraint. There were 280 experimental trials.The experimental setting was kept monolingual as to eliminate the potential for confounding effects of bilingual interference. The results of this study show that the competition be tween target words and competitors was greatest for the segmental and cohort categories. This is crucial because the segmental category diverged from the cohort in tonal information only and the cohort category diverged in segmental information. This supports the hypothesis that both tonal and segmental information show an equal role in word recognition.Furthermore, the time course information for both cohort and segmental categories were similar. This seemed to indicate that segmental and tonal information are both accessed at the same time. There were no data supporting the claim that rhyme competitors would be looked at more than the distractors. This went against the second hypothesis and was likely a result of a discontinuity between rhyming features in Mandarin compared to English. This study could help improve existing models of speech perception by providing a firmer basis for tonal processing in auditory word recognition.This might raise the question of how tonal informatio n should be represented in a speech perception model. Ye and Connine (1999) have proposed the use of ‘tonemes’ since they act as contrastive units that can be categorically perceived like their segmental counterparts. Through summarizing, I have come to a better understanding of how this study would influence the TRACE model. Particularly, how different levels of word representations are shaped by spreading activation — tonemes possibly being the newest.By accounting for suprasegmental features, a speech perception model would be much more robust and functional. One particular thought that has arisen as a result of this study is how tone recognition contrasts between the modalities of speech vs. music. Do they share overlapping neurological locations and functions? Also of interest is whether individuals with amusia (tone deafness) are able to utilize tones as contrastive units in a language? References Liu, S. , & Samuel, A. G. (2007).The role of Mandarin lexica l tones in lexical access under different contextual conditions. Language and Cognitive Processes, 22(4), 566–594. Malins, G. M. & Joanisse, M. F. (2010). The roles of tonal and segmental information in Mandarin spoken word recognition: an eyetracking study. Journal of Memory and Language, 62(4), 407-420. Ye, Y. , & Connine, C. M. (1999). Processing spoken Chinese: The role of tone information. Language and Cognitive Processes Special Issue: Processing East Asian Languages, 14(5–6), 609–630.

Tuesday, October 22, 2019

Decimal Degrees Versus Minutes, Seconds

Decimal Degrees Versus Minutes, Seconds When you hear about metric measurements, usually you are bombarded with terms denoting length, height or volume, depending on your industry. Outside of formal schooling, you almost never hear about the geographical side of measurement - specifically, those ever-present invisible lines of latitude and longitude. This article will explore how some metrics are shown in geographical terms, who uses traditional Degrees/Minutes/Seconds, and what the future may hold.   A Brief History of U.S. Metrics Originating in France in the 1790s, the metric system (officially known as SI, short for Le Systeme International dUnites) grew in popularity due to increasing global commerce. Through trade with Europe, the U.S. awareness of metrics trickled into existence, eventually prompting Congress to permit its use in 1866. It was legal but voluntary. The first official legislation concerning metric conversion was passed by Congress in 1974, adding metrics to our elementary and secondary education curriculum. One year later (in 1975), Congress passed the Metric Conversion Act, declaring that the U.S. federal government should use metrics as its preferred measurement system, as evidenced by a box sitting in my cubicle whose labeling instructions tell of letters that must be 3.81cm (1.5 inches) high. The nutritional information on any package of food is also a good example, showing grams (instead of ounces) of fat, carbs, vitamins, etc. Ever since its beginnings, the U.S. government has striven to promote and stabilize metrication, with limited results: mostly those in the sciences, military, engineering, manufacturing and other technical fields use the metric system. The general public, however, continues to show comparatively overwhelming disinterest in adopting grams, litres, and meters over the traditional ounces, quarts, and feet. The United States is the only remaining industrialized country whose general population does not use metrics as its primary measurement system. Metrics and Geography Despite the average American laypersons apathy for metrics, those of us who use geographic coordinates on a daily basis see plenty of evidence that decimals are out in full force. On any given day Ill see a few handfuls of engineering site surveys (and sometimes other data) come across my desk, 98% of which have a decimal somewhere in the latitude or longitude. As technology has developed over the years, allowing more accurate measurements, the number of ways that we geography people get to read those coordinates has increased. The three most popular types of Lat/Lon displays are: Traditional degrees/minutes/seconds (D/M/S), usually with decimal secondsDegrees with decimal minutes, no secondsDecimal degrees, no minutes, no seconds Doing the Math No matter how you choose to display them, any converted coordinates will get you to the same point, basically - its simply a matter of preference. If you are one of those people who grew up learning only D/M/S like me, you might break into a cold sweat the first time you see the second or third decimal variations (bulleted above), if only from the memory of your high school algebra classes. But fear not, for there are a boatload of conversion programs and websites that will do the math for you. A majority of these sites convert between D/M/S and decimal degrees, leaving out the less popular but still available decimal minutes. There are other sites for those who dont mind/enjoy algebra, or who are naturally intrepid souls and simply wish to brave the longhand algebraic equations. If you are ready to break out the Texas Instruments calculator and go for it, you might try the Montana Natural Resource Information System, which shows conversion equation examples, but also has an automatic converter.   Finally Rubbing Off? Within the past few years, more and more Americans seem to be warming up to the concept and have begun using decimals in their everyday lives. Certainly, the growing number of metric labels on many foods, drinks, health care, cleaners and other various products are clear indicators that the average American consumer should probably start learning to accept decimal numbers. This goes for geography as well. GPS unit sales to the nonmilitary population are on the rise and most (if not all) GPS units display a location using decimals. One can expect hiking, boating, driving, or any other type of navigational information to be in this same format, no matter the scale, map projection, or elevation. As the rest of the world moves forward with metric standards, the United States government will most likely feel more pressure (especially from Europe) to go totally metric for global trading purposes. Once the population finally accepts that change is coming, decimal numbers will be even more abundant and it will filter down through every aspect of American industry. Don't Panic For those hikers, boaters, drivers, orienteering students, land surveyors and others who may be used to using only D/M/S, dont worry. The conversions are out there, and its easier than you think to get results from them. Latitude and longitude lines certainly arent going anywhere - well always have those to rely on - so for now, get ready and warm up that calculator! Len Morse earned a B.S. in Geography from Towson State University and has been with the FAA for approximately 14.61 years.

Monday, October 21, 2019

Conflicts in The Quiet Man †Literature Essay

Conflicts in The Quiet Man – Literature Essay Free Online Research Papers Conflicts in The Quiet Man Literature Essay Conflicts occur every day. No one can live their lives without conflict; and no writer can write a good story without conflicts. In â€Å"The Quiet Man† by Maurice Walsh is no exception. The characters in the story have many conflicts with other people, society, and even inside themselves! The first and most prominent type of conflict is the person versus person. Liam wanted to marry Kathy Carey but she wouldn’t until his sister was out of the house. Liam finally let Ellen marry. Another conflict is that Ellen wanted Shawn to get the dowry from her brother. He finally does. At the end of the story Shawn and Liam fight because Shawn threw money from Liam into a furnace. Shawn wins and be comes a â€Å"man.† The second conflict type is person versus society. This type though not common in this story is important. In the beginning of the story, while in America, society was against Shawn, He was an immigrant trying to make a fortune in America. Society already had a bunch of people wanting to do the same thing. This is very important because if he had succeeded he might not have gone back to Ireland. The second conflict with society is the people of Kerry. They want Shawn and Liam to fight. Finally with pressure he and Liam get into a brawl. The third and most important conflict is person versus themselves. Shawn Kelvin had to decide between making Ellen his bride without romance or letting her wait for romance and losing her. Finally, he determined he wanted her as a bride. Ellen has to choose between marrying Shawn Kelvin and living with her brother for the rest of her life. She preferred her freedom so she saw fit to marry. Liam had to select between letting Ellen marry and getting married, and in the process become richer. He lets Ellen marry but, sadly Kathy Carey marries someone else. A conflict is defined as: a fight, battle, or struggle, esp. a prolonged struggle; strife. Life would be monotonous without conflicts; just as books and stories would be dry with out â€Å"strife.† Conflicts in the story affect the plot in a lot of unpredictable and unexpected ways. In â€Å"The Quiet Man† the ever-present struggles make the adventure of Shawn Kelvin exciting and enjoyable. Research Papers on Conflicts in "The Quiet Man" - Literature EssayBook Review on The Autobiography of Malcolm XTrailblazing by Eric AndersonQuebec and CanadaMind TravelHarry Potter and the Deathly Hallows EssayThe Masque of the Red Death Room meanings19 Century Society: A Deeply Divided EraHonest Iagos Truth through DeceptionCapital PunishmentThree Concepts of Psychodynamic

Sunday, October 20, 2019

A Dolls House as a Naturalistic Play

Henrik Ibsen was a nineteenth century playwright who is known for his great depiction of social reality. Ibsen was born in Norway; however he worked in different countries to earn a living. His plays are the most frequently performed after the ones of Shakespeare. One of his most popular plays, which we have studied as a part of the â€Å"Modern Drama† class, is called A Doll’s House. The following essay will try to demonstrate with detailed explanations and references to the play that its content is a Naturalistic one. First of all, we will define what Naturalism is. Secondly, we will look at how the definition applies to A Doll’s House. Thirdly, we will compare it with another play: The Cherry Orchard by Anton Chekhov. Naturalism is often based on the theory of evolution of Charles Darwin. Naturalist authors frequently want to show how people are predestined to live a certain way as they are prisoners of the social hierarchies created by men. John Rahn points out this affirmation in his article on Naturalism: â€Å"The dominant theme of Naturalist literature is that persons are fated to whatever station in life their heredity, environment, and social conditions prepare them for. The power of primitive emotions to negate human reason was also a recurring element.† (Rahn, 2011) Naturalism is a type of literature that attempts to apply scientific ideologies of objectivity and detachment to its study of human beings. It focuses not only on the characters, but on the way they react to unusual situations. Naturalists try to recreate human nature through fiction that is to say that the novel or play is a creation through observation of humans living in society. Some have criticized Naturalists to only show a pessimistic side of human nature. In Ibsen’s A Doll’s House we can easily conclude that the content is Naturalistic by, first, looking at the monologues and dialogues. For example, the way Nora speaks when she addresses Torvald is different than when she speaks with other characters. The fact that, in the 1880s, men were considered dominant and had power over their wife is a sign that it is the way a women would behaved towards her husband; she would have been respectful and always at his service. The author of A Doll’s House was concerned with the way women were treated back in his days: â€Å"Ibsens concerns about the position of women in society are brought to life in A Dolls House. He believed that women had a right to develop their own individuality, but in reality, their role was often self-sacrificial.† (Unknown, 2014) Women were not treated as equals with men, either in relation to their husbands or society, as is clear from Torvalds horror of his employees thinking he has been influenced in a decision about Krogstads job by his wife. However, when Nora speaks with Krogstad, she does not use the same tone and she is a lot more straightforward responding to his accusations. Since Krogstad is Torvald’s employee, Nora feels more inclined to not take him seriously and to argue. Even though Krogstad is a man, Nora is on top of him in the social hierarchy since her husband has power over Krogstad. Depending on the epoch, words and behaviour have more or less power. This also depends on who is reading the text. In the case of A Doll’s House we can understand from the way Nora acts, that her behaviour might not be well perceived by a 1880s audience, however in the present era her behaviour would not be as shocking. Still, the way Nora acts in whatever period in history is part of the human nature that wants to be free. As for the other characters, Torvald is a banker whose vanity will lead to his downfall and cause him to lose the love of his life. Dr. Rank is the only character that treats Nora as an intelligent human being, however he wants something in return (her love) which makes Nora more reticent to share her flaw with him. Mrs. Linden is a tragic figure at first since she is a widow and women did not usually work during the 1880s, but she gets hired at the bank and starts a new life with Krogstad. All of these characteristics are typical to a Naturalistic play because everyone stands where he/she belongs according to the social conventions of the time. If we compare Ibsen’s A Doll’s House to Chekhov’s The Cherry Orchard we can notice the similarities through the patterns of the Naturalist movement. As mentioned earlier: â€Å"The dominant theme of Naturalist literature is that persons are fated to whatever station in life their heredity, environment, and social conditions prepare them for. †(Rhan , 2011) In A Doll’s House, Nora is fated for the almost unique reason that she is a woman in a particular time in history, which makes her role as a mother and wife the most sacred thing for a woman at that time and deprives her of the freedom that man have. In The Cherry Orchard, the people of the Bourgeoisie are fated to become useless since capitalism is taking over and businesses are now richer than they are and can afford to buy lands and earn power through their possessions. In both plays there is a peripeteia also called â€Å"reversal† which is typical to Naturalistic drama. In A Doll’s House the peripeteia occurs when Nora decides to leave her husband to learn about herself, Torvald ends up alone not understanding what happened and at the same time Krogstad and Mrs. Linden decide to get back together to help one another through . In The Cherry Orchard the peripeteia is plain to understand as the Bourgeois culture comes to an end while a serf takes over the land since he has climbed the echelons and became a businessman. To continue, in A Doll’s House there is the character of Nora that is in some way a proto-feminist character and that was pretty revolutionary back in the days for a woman to quit everything and become autonomous. In The Cherry Orchard, that revolutionary character would be Trofimov whose idealistic convictions make him an interesting character to reflect upon. Naturalistic playwrights want the audience to see human nature through their eyes and make them rethink what is normally considered as right or wrong. These often â€Å"avant-garde† characters are there to make the audience react to their monologues and reflect upon what they have heard. Finally, we can notice that the play A Doll’s House by Henrik Ibsen is a Naturalistic play from the definition that is given of Naturalism. By looking at the dialogues and monologues we can recognize that everyone is at their place, there are no inverted roles, the social hierarchy is respected and humans are being humans. In comparison to Chekhov’s The Cherry Orchard, we can identify similarities from the typical unfolding of a Naturalistic play as the character are predestined to remain where life has put them, but also because of the typical â€Å"reversal† (peripeteia) that occurs in both plays. The intention of Naturalist playwright is regularly to make their audiences look at themselves in the mirror and realize the flaws of human nature.

Friday, October 18, 2019

The essay for Modules: Research Paper Example | Topics and Well Written Essays - 3250 words

Organisation Design and Organisation Delivery - Research Paper Example The mechanization of mental labor has been initiated during the late 20th century with the development of information technology. The mechanization of mental labor can be described as the process of replacement of human labor and intelligence with the assistance of the information technology and computerized processes (Kuskey, 2014). Mental labor can also be termed as informational labor which can be recognized both as an independent activity as well as an adjunct to obtain physical control over different organizational work environment. According to Shieber, (2013), with the assistance of machinery, human labors can perform a wide range of actions as well as can create a number of innovative product and processes which might have been absolutely impossible without the assistance of the mechanization and technologies. The mechanization of mental labor has enabled different industries and organizations of the 21st century to increase the efficiencies of their operations and human reso urces while it has reduced or replaced the mental labor of a huge part of the workforces (Levy and Murnane, 2012). The organization is a life insurance service providing company which is situated in Chengdu, China (Lu, et al., 2014). In further discussion, I will also evaluate my experiences in terms of the distinctions between the mechanized processes and human mental labor. The discussion of the study will detail the different types of human mental labor which can or cannot be mechanized. Finally, it will discuss the strategic distribution of mental labor within the machine process and the human labor of the organization. Data warehousing and data mining are the most used mechanization procedure that I have encountered in the everyday life of the marketing and sales division of Great Wall Life Insurance Company that has been reduced as well as have replaced the mental labor of the workforces within the organization.  Ã‚  

Discuss the windows 2000 Emergency Repair Process Essay - 1

Discuss the windows 2000 Emergency Repair Process - Essay Example The Emergency Repair Process can accomplish a number of tasks, it has the ability to repair and inspect the startup environment, it can swap the system volume boot sector, it can replace and verify system files, and replace the registry if it is badly corrupted or missing. For the successful use of the Emergency Repair Process it is necessary that you have an Emergency Repair Disk or an ERD. It is suggested that the Emergency Repair Disk is created after you install and customize your Windows operating system. This disk can be created using the ‘Backup’ utility from the System Tools. The Emergency Repair Disk can be used to fix a damaged MBR, a damaged boot sector, and replace or repair a damaged or missing NT Loader or NTLDR and ntdetect.com files. It is possible that the Emergency Repair Process can try to locate the Windows installation and then start fixing your system, incase you do not have the Emergency Repair Disk, however it is not always possible. The Emergency Process is generally used when you are unable to start your computer using the Last Known Good Configuration or the Windows 2000 Safe Mode. The successful completion of the Emergency Repair Process will repair your system and your computer will automatically restart itself and your system will start functioning as

Managing non-profit organizations Research Paper - 1

Managing non-profit organizations - Research Paper Example In a nonprofit organization the output is the fulfillment of the community’s needs without any profit and trained staff members. Management of a nonprofit organization is also different. It includes four steps; planning, developing, operating and evaluating (Kotler). Each step in turn includes other tasks. While planning, one has to plan for three different things; strategy, resources and programs. Staff members carry out strategic planning to find out the overall purpose (mission) and direction (vision and goals) for the nonprofit, in addition to the methods (values, approaches and programs) for the nonprofit to work toward the purpose and direction. The strategic planning course offers input to all other major tasks in the organization, especially program planning and resource planning. Thus, if strategic planning is not done well, the entire organization can be unfavorably influenced. During program planning, the marketing investigation (or â€Å"inbound marketing†) activities are performed to recognize, for example, precise society requirements for the nonprofit to meet, what conclusions are desira ble to meet those needs, what explicit groups of customers to provide, and how to serve them to accomplish those outcomes. Program planning makes available input to many other functions, such as resource planning (regarding staff, funds, and people), financial management, advertising and promotions, and also fundraising. Many problems commonly connected with fundraising and promotions are really the result of poor program planning. Planners (McNamara). Typically, resources include people, financial support, amenities, equipment, supplies, and even certain policies and procedures. Budgets usually are developed that contain listings of resources that are needed, along with the predictable costs to get hold of and support the use of those resources. Resource planning straightforwardly influences the superiority of all operating

Thursday, October 17, 2019

Optical Fiber and WLAN Essay Example | Topics and Well Written Essays - 3000 words

Optical Fiber and WLAN - Essay Example However, working on an efficient frequency use, one point must be addressed i.e. GSM mobile and wireless network users will use the same medium i.e. air and that may result in in an interference or obstruction of frequencies, if design is not adequate (Al-Hunaity 2011). Wireless LAN utilizes radio frequencies or electromagnetic waves for carrying signals to the source or destination similar to Amplitude Modulation AM, frequency modulation FM or Frequency Division Multiple Access FDMA. FDMA allocates the available frequency range in to small ranges that are also called sub-frequencies. After dividing the sub frequencies, each sub frequency is utilized as a stand-alone frequency and is called as a channel. The Federal Communications Commission (FCC) has defined Wireless LAN standards by IEEE 802.11. The IEEE 802.11 standard is defined by the Institute of Electrical and Electronics Engineers Incorporated. Likewise, overviews of wireless LAN standards are demonstrated below (Al-Hunaity 2 011): IEEE 802.11 (legacy mode) standard was defined in 1997, as it talks about two bandwidth rates i.e. 1 Megabits per second (Mbps) and 2 Megabits per second (Mbps) operational in a 2.4 GHz frequency hopping spread spectrum (FHSS) and in the direct sequence spread spectrum (DSSS). IEEE 802.11a is operational on a 5 GHz unlicensed spectrum and utilize frequency band Orthogonal Frequency Division Multiplexing (OFDM) that offers a maximum data transfer rates of 54 Mbps. Moreover, it also offers 12 channels that are non-interference along with 4 outdoor channels and 8 indoor channels. IEEE 802.11b standard is operational on a 2.4 GHz unlicensed frequency spectrum that offers... Moreover, bandwidth access for end users may reach 1 GB per day by 2015 and 10 GB per day by the end of 2020 (Parker, Walker et al. 2010). Likewise, research and studies associated with NGA incorporates convergence with different technologies and the wireless convergence is addressed by Radio over Fiber (Parker, Walker et al. 2010). A fiber radio network consists of two different domains, one is optical and the other one is wireless. The wavelength division multiplexing (WDM), in the optical domain is used to combine a number of wavelengths together in order to send them through a network known as fiber-optic network. Hence the growing use of available fiber bandwidth and maximizing total data throughput, a single CO supply each remote radio BS and has access to divide optical wavelength, therefore to accomplish the requirements of future bandwidth wireless. From CO to BS a separate optical wavelength is allocated in the downlink. However, it can be used in the uplink route as BS to CO. On the contrary, a channel offset method can be used or downlink and uplink channels can be interleaved because, by using the identical wavelength in both the directions is not necessary. The main aspect that determines the type of that optical network and the tools used in CO and BS is that whether the data designed for the BS i s sent at the baseband or at intermediate-or radio-frequency(IF and RF).

Article by James Howard Kunstler Essay Example | Topics and Well Written Essays - 500 words

Article by James Howard Kunstler - Essay Example   He suggests that no one thought of understanding the architecture that America could have established rather what happened was that roads were widened and this resulted in huge traffic jams at the present, which seem to mean a lot of tension and apprehension left, right and center. Kunstler has given the example of Walt Disney in this article as he thinks that Walt Disney understood the American psyche and thus he constructed something which could relate with the way the Americans used to live in and enjoy their freedom. He has touched upon the aspects related to the postwar decades where America could not come to terms with its own basis, breaking all the rules that were previously coined and turning towns into urban garbage lands. I believe that Kunstler has been pretty critical of the American geography and has just touched the construction aspects related with America itself. He has not linked this article with the advancements that America has had in different fields of life, so much so that it has come to be known as the Super Power of the World. But then again Kunstler has been vocal at making a point or two which could go down well with the town planners and architects since there is still a lot of room for improvement within the said fields and the matter pertaining to the ugliness of the American skyline is somewhat debatable as I have understood it. The urban sprawls have demanded that long towers are built across the cities and the people be inhabited across a set of different areas whilst being earmarked for living purposes, industrial concerns and the like. Thus the debate is somewhat mind-boggling since Kunstler must know about the facts before making a point about the actual basis of the American urban sprawls.  Ã‚  

Wednesday, October 16, 2019

Power Influence Approach Essay Example | Topics and Well Written Essays - 500 words

Power Influence Approach - Essay Example This view of leadership that talk about power and how it is used to influence people in order to get the job done. Power influence approach sees power as the central element of leadership and is interested in finding how leaders assume and lose power. The influence of power is considered important in this approach because it makes people follow the leader. Power influence approach also explains how a leader can use his or her power to influence not only subordinates but also peers, customers, and suppliers (Yukul, 2010). The French and Raven (1959) model outlines five sources of power namely expert, referent, reward, coercive, and legitimate. These sources can be used to assume power and then can be used to ‘influence’ subordinates. Expert power comes from unique set of knowledge and skill that builds trust of subordinates and in turn subordinates follow the leader. Doctors and high tech engineers can have expert power. Reward power is the power to delegate rewards and this can also make employees follow their leader. Referent power is related to personal approval and acceptance. Celebrities and political figures have this power usually. Coercive power breeds compliance by use of threats and punishment. Legitimate power stems from the position or job title of a leader. All these sources of power can be used to influence employees. This approach is extremely effective because power can be used to get the job done. People are usually influenced by power and therefore the relationship between power and leadership seems strong. Also this approach takes a very natural look at leadership and simply suggests how employees can be made to follow their bosses. Weaknesses of this approach are quite obvious. Power is always not a good thing for building relationships. Managers might use power to influence employees but this might undermine employee satisfaction. Moreover power sometimes underpins creativity as people begin to follow a

Article by James Howard Kunstler Essay Example | Topics and Well Written Essays - 500 words

Article by James Howard Kunstler - Essay Example   He suggests that no one thought of understanding the architecture that America could have established rather what happened was that roads were widened and this resulted in huge traffic jams at the present, which seem to mean a lot of tension and apprehension left, right and center. Kunstler has given the example of Walt Disney in this article as he thinks that Walt Disney understood the American psyche and thus he constructed something which could relate with the way the Americans used to live in and enjoy their freedom. He has touched upon the aspects related to the postwar decades where America could not come to terms with its own basis, breaking all the rules that were previously coined and turning towns into urban garbage lands. I believe that Kunstler has been pretty critical of the American geography and has just touched the construction aspects related with America itself. He has not linked this article with the advancements that America has had in different fields of life, so much so that it has come to be known as the Super Power of the World. But then again Kunstler has been vocal at making a point or two which could go down well with the town planners and architects since there is still a lot of room for improvement within the said fields and the matter pertaining to the ugliness of the American skyline is somewhat debatable as I have understood it. The urban sprawls have demanded that long towers are built across the cities and the people be inhabited across a set of different areas whilst being earmarked for living purposes, industrial concerns and the like. Thus the debate is somewhat mind-boggling since Kunstler must know about the facts before making a point about the actual basis of the American urban sprawls.  Ã‚  

Tuesday, October 15, 2019

Intermediate certificate in Human Resource Management Essay Example for Free

Intermediate certificate in Human Resource Management Essay Is the criticism of HR in the article justified? Yes and no! The quote in the article from Dona Roche-Tarry is fairly damning. She states the HR team should be equally responsible as they work alongside the CEO and MDs to recommend strategies for pay and bonuses. Whilst HR may work alongside the senior decision makers, they can only make recommendations. The ultimate decision and power lies with the CEO. However, another perspective could be that HR need to be influencers, and should be more efficient at managing upwards. What are the main accusations being laid at the door of HR in this scenario in terms of its competence? Not being responsive Lack of knowledge Being unethical What are the implications for HR here in relation to professional ethics, integrity and confidentiality? The main implication is being seen to be unethical to stakeholders. This could result in HR being seen as not communicating and could have a negative impact on how people perceive HR to be importance wise. Integrity is also damaged by not being seen to have provided a voice in relation to political equality. How might HR been able to influence the situation more? By managing relationships better across hierarchies, and also by forward planning, being market savvy, and risk management. Predicting the issues  before they arose and either finding ways to avoid them or developing damage limitation scenarios and plans. What other key behaviours from the CIPD’s HR professional map do you think are critical here for HR to display? Skilled influencer Courage to challenge Personally credible Collaborative What learning can HR take away from this experience/situation? The main learning is to be more responsive, and take more of an active role in discussions regarding important issues such as renumeration Being seen to consult stakeholders and provide senior stakeholders with a more accurate company and market view. Improved communication across all levels needs to be implemented.

Monday, October 14, 2019

Monetary Policy and Financial Institutions of Kenya

Monetary Policy and Financial Institutions of Kenya CHAPTER ONE 1.0 INTRODUCTION The world is turning into a â€Å"demon† to its own people as many are living in deplorable situations that are hardly bearable. The price level have risen sharply in the recent past coupled with dwindling wage levels and declining growth rate, especially, in majority of African countries where poverty has embedded itself to an extent that people in these countries live below one dollar per day. However, majority of governments have embarked on instituting major reforms through introduction of avant-garde monetary policy schemes, which forge the way forward through which the monetary authority re-design its policy by focusing primarily on price stability as the primary objective. In the last twenty years, majority of both developed and emerging economies respectively have embarked on IT framework as their best choice in conducting monetary policy, with none of inflation countries targeters abandoning the framework, save for Finland and Spain, that have already joined the European Monetary System (EMS) in late 90s. IT-framework; an approach to management of monetary policy was pioneered by the New Zealand Government in 1990 after it abandoned its pegged exchange rate five years later. By the year 2009, over twenty-five countries comprised of developed, emerging, and developing countries around the world had so far espoused the IT-Framework and have reported greater achievement of low inflation rate. Majority of these countries mainly from Latin America, East Asia and United Kingdom had experienced high bout of inflation and financial crises exacerbated by their former monetary policy regimes. These not only resulted to sacrificing output and employment but als o resulted to severe increase in international capital flow leading to a switch to floating exchange rate. 1.1 Historical Background In relation to many other African countries, the monetary policy and financial institutions of Kenya has developed rapidly within the last two decades and probably more advanced than other countries at a similar stage of underdevelopment. Kenya opened its own Central Bank in September 1966 with the hope that, it would at least generate secondary expansion by facilitating the creation of bank credit and accelerate the process of monetization of the economys subsistence sector, in spite, of its openness and sensitivity to fluctuations of primary commodities. The next decade following the establishment of her Central Bank witnessed interesting changes in Kenyas monetary and banking policies as the oil shock of 1973 created inflexibility in the foreign exchange reserves as they declined considerably. Hence, the magnitude and speed of reduction in credit expansion were not adequate to show the decline in foreign exchange reserves. In fact, the fear that tight monetary policy induced from outside could hamper the rate of development at home led to feeble corrective measures such as restraining inflation impact due to price boom of exports, which coincided with expansionary monetary policy under a low profile of interest rates. In the early 1980s and 1990s Kenya experienced high inflation resulting from a prolonged spell of drought and political instability that resulted from introduction of a multiparty system in the Kenyan political history in late 1980 and also general elections followed later in 1992. Besides, in 2002, the growth per capita was negative due to high corruption of the highly ranked government official and political interferences of major decision-making organs of government including the Central Bank of Kenya, as it could not carry out its mandate freely. In the year 2008, Kenya faced another dark moment in terms of its political stability as the whole country went into turmoil due to the highly disputed general elections of 2007. The once giant of East African countries went down into â€Å"ashes† and major sectors of the economy especially the financial sector got hurt the most. Since then, it has been very difficult for the resurgence of economic stability, political stability a nd financial institution even after the power brokering that gave birth to a coalition government in that same year. However, in late 2010, the coalition government of Kenya gave hopes to recovery of major sectors of the economy when the New Constitution unanimously voted into existence in a referendum. This Constitution has brought about major reforms in the financial and political arenas more specifically in the Central Bank of Kenya as per se; hence, major changes are expected to be instituted by CBK for an effective and independent monetary policy conduct. 1.1.2 Road map of Kenya towards adoption of ITF 1.1.2a) Central Bank of Kenya main policy objective The amended Central Bank of Kenya Act of 1996, CAP 491(4) permitted the Banks operational autonomy in the conduct of monetary policy and mandated price stability as one of its primary objectives through formulation and implementation of such principal object of the bank, thus, promoting the long-term goal of economic growth. In fact, the Central Bank of Kenya does not announce an inflation target; instead, it uses money growth reserve as her main nominal anchor of which the repo rate forms its main operational target. It is in this perspective that the CBK monitor and control inflation rate through interest rate transmission channel as a way of conducting monetary policy. Apart from the main objective that is price stability, the Bank has a mandate to balance its inflation goals against other goals such as exchange rate stability and promotion of liquidity, solvency and steady-market back up while ensuring equilibrium in domestic and external payments. 1.1.2b) Central Bank of Kenya attributes that favor ITF adoption The Bank like any other bank of its caliber is mandated by the legislation to carry out its objectives in a more coherent and consistent manner without any external interference, thereby commanding greater central bank independence. The ‘Old Constitution of the Republic Kenya of (1963) and ‘Newly Promulgated Constitution of the Republic Kenya of (2010) have further strengthened the Banks Act, thereby, empowering the bank to carry its main objective without political interferences and curbing time-inconsistency trap. The appointment and removal of the CEO of the Bank (governor) and his/her deputy rest with the president discretion for a period of four years term in office unless stated otherwise. In connection to the governor term of office termination, the president has a directive to appoint a tribunal comprised consisting of a chairperson and two members who hold offices in High Court or Court of Appeal. This tribunal enquires on matters related to termination of such appointments and make recommendation to the president. Nevertheless, these might undermine the Banks credibility in upholding autonomy in case the termination of the governor might be unlawfully since the appointing authority might compromise the tribunal to favor his/her decision. In conformity with the Act CAP (491), the MPC is hereby required to forward a report at least every six month to the Minister detailing all dealings the bank is undertaking hence the Minister shall table the MPC report before the Parliament for further amendment and deliberations. The Bank is exempted from any taxation whatsoever in respect to losses or profits. The Banks books of records and financial statements subjected for auditing by the Controller and Auditor General only if the Minister of Finance deems it appropriate for such auditing. Both Governor and Deputy Governor are indebted to adhere to the bank in totality and prohibited from engaging in any other paid businesses, professional activities or employment while still in office. These is in agreement with majority of literature such as (Klomp and Haan 2008) who based their idea on Cukierman Index which states the following inherent features for a central bank to be termed as more independent: (i) if the governor appointing authority rest with BOG rather than the president, is not prone to relieve of his/her duty, and has a longer tenure in office. (ii), if the government has no tendency to interfere with banks conduct of business, for example, in policy formulation and implementation; if there is a greater independence be it of legal instruments or goal instruments; and also if the government has no capacity to borrow from the bank. (iii) last but not least, if the bank main objective is price stability. 1.1.2c) Economic Independence of CBK Kenya has also experienced tremendous financial innovations intensifying greater implications to monetary policy transmission mechanism. The Bank is empowered to act as a fiscal agent of the government or any public entity. Similarly, the advance made by bank to the government is supposed to be secured with securities issued by government, of which are supposed to mature before twelve months, bears interest at market rate, and are advanced for a short-term period to the government. In compliance with the statute, the CBK has an authority to grant loans and advances not exceeding three years in fixed period to government as a Deposit Protection Fund Board (DPFB), while the bank has mandate to lend or give credit to public entity, although, it is limited in extending such credits. The main interest is built on the various chief features associated with the introduction of inflation targeting framework by most of the Central Banks of both developed economies and transitional economies around the world; borrowing heavily from various aspects of literature that have analyzed greatly the development of this framework in order to determine the viability of the framework in low income countries such as Kenya. indeed, little has been done in A model specific to the needs of Kenya will be developed while building a general structure within the framework of an ITF so as to distinguish between group characteristics of the inflation-targeting and non-targeting central banks since its inception, and the relationship between various variables mentioned in the hypothesis. In addition, the paper depicts lessons learned by countries that have already adopted the strict ITF since 1990s. What become apparent evident in process of this review, however, is that several contributory problems must first be solved before forming an informed judgment on the likelihood of low-income countries embracing the framework. The first of these problems is whether there are impetus and aspect linked with decisions to move from a specific monetary practice to another. Second problem revolves around the feasibility of other policy designs of monetary policy such as exchange rate regime and central bank independence Third problem will address chief pitfalls that could prevent low-income countries from embracing this policy design. The study hypotheses investigates the relationship between conditions that lead to adoption of inflation targeting framework in developed economies and examine if these pre conditions have a replicate effect in low income countries. The other parts of the paper shall be structured as follows: In section II, assess modification of monetary policy conduct under ITF by various developing countries central banks, the cons and pros of shifting to such strategy. In section III evaluate the exchange rate transition and its role to inflation targeting framework more specifically the following interrelated issues will be taken into considerations: the role of nominal exchange rate it plays as a nominal anchor, the costs associated with the real exchange rate overvaluation; and the approach for exiting the pegged exchange rate. Section IV reviews the role of the central bank independence since it forms the core tenet of conjecture that is built around the inflation targeting framework.Likewise, other contributory factors to embracing the framework will be captured in this Section. The paper concludes with the policy recommendation and the way forward. 1.3 General Salient features, Implementation and Experience A better strategy for monetary policy is built on the following inherent characteristics as summarized by Svensson Lars 1997; Friedman, 1990; McCallum, 1990 that is, it is supposedly to be highly correlated with the goal and has a tendency to be controlled by central bank with much ease than the goal itself. Similarly, the public and the central bank should be able to comply to it with much ease than the goal. In addition, transparency is of greater importance in terms of the efficiency and effectiveness of the bank communicating to the public its objective and procedure of conducting its monetary stance. Literature from (Bernanke and Mishkin 1997), Bernanke et al. (1999) and (Svensson Lars 1997) has vehemently mentioned various elements that form this framework which includes. First, price stability is formally chosen as the main intent of monetary policy, which indicates the monetary stance and the central banks principle of appraising its performance. Second, the central bank issues a declaration, which categorically states the numerical target for inflation within a specific, horizon-thus the bank has the latent to lessen the possibilities of falling into time inconsistency trap in carrying out its primary goal. Third, either the government can opt to choose the target, independently or collectively with the central bank, which is associated with appropriate changes in the central banks law thus enhancing instrument independence of the institution in achieving its target. Fourth, the ITF promotes high transparency in the conduct of monetary policy thus enabling flow of information from the central bank to the public and government. Svensson Lars (1997) stated that, when the authority anticipate the policy target deviation, the strategy should be attuned in such a way it is neither contractionary nor is it expansionary in accordance with keeping the policy on target. On this background, the IT-framework work best in forecasting future inflation, that is, the relevant information for forecasting monetary policy is of greater importance in predicting future inflation. Indeed, this transparency of inflation targeting forms a better juncture in terms of motivating and focusing the activities insi de the central bank. More so, there is high tendency of central bank accountability, which is often outlined in case of breach of inflation target, meaning it helps in clarifying what the central bank is capable and incapable for it to be accountable. Although, inflation targeting has proved to be the best modern strategy it does not lack some criticism or problems that characterizes it in terms of implementation and monitoring. For instance Svensson Lars (1997) has described some of the inherent problems that makes this strategy ineffective, which includes: central banks inability to restrain inflation due to the fact that, previous decisions and contracts play a vital role in determining current inflation. In other words, the authority can only have power over the future inflation. In addition, monitoring and evaluation of monetary policy by public faces a greater set back due to the inadequate control of inflation. CHAPTER TWO 32.0 Literature Review A large body of literature has been developed to analyze the effectiveness of an explicit numerical anchor since such framework was adopted in early 1990s. There exists a large number of literatures on major development of Inflation Targeting Framework since its inception in developed countries and emerging economies. However, there is little development in low-income countries in regards to adoption and implementation of this framework varies greatly in most of these countries because of lack of a well-developed financial market, inadequate fiscal position, political interferences and also lack of market integration in majority of them thus posing a bigger challenge to welcoming this framework as a way of monetary policy conduct. Therefore, the section borrows heavily from past studies that have since been done in order to demarcate the gaps that have made the framework ineffective. 3.1 Transition to Inflation Targeting Framework: Central Bank of Kenya In the past decades, the monetary policy encountered by most of the emerging markets economies has been depressing, these resulted to extreme periods of monetary instability, vacillating from high inflation, to colossal capital flight, and thereby led to downfall of many financial systems. However, the forecast for successful monetary policy in the majority of countries in transition have so far been augmented. This has been typified by considerable decline of inflation rate in Latin America region as an example of an emerging region, which dramatically fell from an average of above 400% in 1989 to less than 10% (Mishkin Savastano, 2001) According to Morande and Schmidt-Hebbel (997), â€Å"this objective of inflation control has been interpreted by public as formal targets or â€Å"hard† targets.† Thus enables the central bank to be more accountable by explicitly announcing a multi-year target for inflation. Downs and Vaez-Zadeh (1990) declared that â€Å"during the transition it is not possible to forecast market behavior†¦..[s]ince the old money-model is bound to be obsolete and perhaps of little use† (318). Indeed, the ‘old fashioned regime of money-growth targeting framework has proved inefficient in the recent past, although the Central Bank of Kenya has been able to maintain inflation rate as low as possible. Above all, the de-regulation of economic activities in the early 1990s marked a major landmark in the conduct of monetary policy in Kenya in terms of objectives, instruments and institutional framework. Mwega 1990(a) developed a model that sought to explain the changes in the CPI Growth e.g. real income (T) changes, changes in money supply (M2), changes in import prices and changes in previous years inflation rates (Pt-1) were the expansionary variables. In these results, he found money supply to be a significant determinant of inflation. Similar study was done by Ndungu (1993) where he did a comprehensive study on the dynamics of the inflationary process in Kenya for the period 1970-1991. He used a monetarist model, named the error correction form of model and empirically showed monetary growth, interest rates changes, real income growth and excess money printing which were significant determinants of inflation in Kenya assuming a closed economy. When he included the external economy, he found the exchange rate had a significant effect on the domestic price level. The results of his study indicated inappropriate government policies (monetary and fiscal) resulted lack of control of inflation especially in 1980-1990 where inflation level escalated. Mishkin and Schmidt-Hebbel (2007) in there panel data analysis comprising of both inflation-targeting industrial countries and non-inflation targeting industrial countries, argued that ITF has helped these countries in achieving stable inflation rate in the long-run where they are attributable in oil-prices and exchange rate shocks, and that are associated with strengthening of monetary policy independence and enhanced policy efficiency. Taguchi and Kato (2010) assessed the performance of the IT in East Asian economies where they adopted a co-integration approach between money and inflation. The estimation results were that, the ITF in the sample of few selected economies, except for Philippines, proved to work well as an anchor for controlling inflation through speeding up price adjustments (stabilizing inflationary expectations) against money supply in the context of floating exchange rate. Similarly, they argued that, â€Å"well-functioning inflation targeting framework was consistent with enhanced monetary autonomy under the post-crisis floating exchange rate.† Aizenman and Hutchison (2008) used a simple empirical model where they estimated panel data for 17 emerging markets for both inflation-targeters and non-inflation targeters and concluded that there was a stable inflation response running from inflation to policy interest rates for inflation-targeters in emerging markets who have anchored their inflation than in non-inflation targeters whose central banks respond less in such markets. Similarly, they argued that â€Å"the response to real exchange rate was much stronger in non-IT countries, however, suggesting that policymakers are more constrained in the IT regime where they attempt to target both inflation and real exchange rate and these objectives are not always consistent.† 2.2 An overview of the exchange rate transition and its role in ITF The Central Bank of Kenya policy objectives have been to protract an exchange rate that will ensure international competiveness while maintaining domestic rate of inflation at low levels through conduct of strict monetary stance. Calvo and Reinhard (2002) argued that Majority of emerging markets are facing problem in performing inflation targeting due to various issues of how to manage the exchange rate under the condition that their external debt is primarily denominated in U.S. dollars. Therefore, the idea of this framework is believed to work best under floating exchange rate regime.Hence, inflation targeting framework as a monetary policy strategy becomes unrealizable in majority of this countries due to too much concern towards exchange rate volatility. In recent times, countries with fixed exchange rate have a tendency to fix their domestic currency value to countries whose main objective is to anchor their inflation in readiness to keep inflation rate in check. Most of the countries that have adopted a crawling target or peg their currency tend to devalue at a firm rate in order to keep their inflation rate low vis a vis their counterpart anchoring countries. These periods marked a milestone that foresaw an accelerated money supply growth and high inflation, but at the same time there was a move to speed up economic reforms and accelerate the pace of liberalization. â€Å"An exchange rate regime makes central bank quite accountable because it has clear-cut goals [b]ut can actually weaken accountability of the Central Banks in emerging- markets countries, by eliminating important signal that can help keep monetary policy from becoming too expansionary† (Blejer, Ã…  creb, 1999, p. 41).Also, for the same reasons described in (Mishkin, 1999a) â€Å"exchange rate targeting can promote financial fragility and lead to foreign exchange crises that can also lead to full-fledged financial crises with disastrous consequences for the economy†(Cited by Blejer Ã…  creb, p.50) .Hence, a continuous adherence of exchange rate regime is probable to have far-reaching impact of economic sluggishness and exacerbate redundancy in the economy, w hich is exactly what Kenya has experienced in the past. Therefore, the Central Bank should move more assertively by provision of an extra credibility, where policy easing is desired to prevent output reductions, without igniting fears of renewed inflation. Mishkin Savastano ( 2001) acknowledged that â€Å" [t]here are three broad monetary policy strategies that can produce an explicit nominor anchor that credibly constrains the discretion of the central bank over the medium : â€Å"hard† exchange-rate pegs, monetary targeting, and inflation targeting†. In spite of this, majority of industiralized economies, notably the United States, have used a more or less the same strategy of anchoring inflation. However, it does not explicitly anchor inflation but it implicitly anchor its inflation. a monetary policy with an implicit but not an explicit nominal anchor sought of monetary policy strategy to achieve macro-economic goals. Whereas, the three monetary policy strategies have enabled emerging economies to set up institutions and mechanisms that have effectively and efficiently constrained the discretion of their monetary authorities; their suitability to conditions in different markets differs according to each strategy that is adopted by each country. Reinhart and Rogoff (2004) declared that, â€Å"Developing countries central banks tend to pursue exchange rate targets that considerably are more deterministic than their official pronouncements†¦.[while] a managed floater might be operating a fixed exchange rate or a crawling peg for extended periods†. Likewise, Kenya has undergone myriad exchange rate regimes in the past mostly driven by various economic cycles, and chiefly the balance of payments deficit. For instance, up to 1974, the exchange rate was pegged to the dollar, but later the devaluation of the currency resulted to a change of the peg to the SDR.1 from 1974-1984 period. This regime lasted until 1990 when a dual exchange rate system was adopted that lasted till October 1993 when, after a series of devaluations, the official exchange rate was abolished. (Mwega and Ndungu, 2001) acknowledged that â€Å"Kenya adopted a unified and flexible exchange rate in the early 1990s, as part of a market-based reform program designed to improve the investment environment and spur economic growth†(Cited by Ndungu, 2008). In addition, the (Kenyan Economic Survey, 1995) revealed that the nominal exchange rate suddenly depreciated by about 32%, moving to Ksh38 to the U.S dollar from Ksh 44 to the dollar, and inflation declined from 46% in 1993 to 28.8% in 1994 (as cited in Ndungu, 2000) as a result of shilling appreciating against dollar in 1995†. 2.3 Central Bank Independence The literature on ITF in emerging market economies suggests that this monetary policy strategy should be adopted only if some institutional preconditions are met. One of them is Central Bank Independence. Many scholars have given much attention to the central bank autonomy and the role it plays in adopting ITF. Indeed, where central bank is autonomous from government interference it is likely to insulate itself from political pressures to finance government fiscal deficits, which can result to over-expansionary monetary policies that would lead to inflation above target. Cukierman, Webb and Neyapti (1992) constructed Central Bank Index that was designed in two folds that is, legal independence and turnover rate of governors, where both revolved around central bank charters and legislation and the relationship it has over the overall performance of the economy. This paper provides an overview of the mushrooming literature on authority autonomy and precision relating it to the mechanis ms through which central banks have in the past adopted greater openness, thereby, focusing more on the role they play in adoption and effective implementation of inflation targeting framework. (Klomp and De Haan, 2010) used a random coefficient model and they estimated a sample of more than 100 countries to re-examine the relationship between CBI (measured by both governors TOR and central bank legal indicator) and inflation. They found Central Bank Index to be negatively insignificant with the level of inflation rate of country specific. Most literatures in developing countries have focused on de facto independence as a proxy of CBI that is governors turnover rate. Studies of Cukierman, Webb and Neyapti (1992) stated that the average and variance of inflation has a negative correlation to governors turnover rate in most of the developing. This is due to the fact that, majority of studies has expressed doubts over the reliability of most of indicators used to construct Central Bank Independence indices. Indeed, there exist a greater divergence when it comes to categorization of indicators used to measure CBI incase of high income countries, emerging countries and low income countries. Cukierman,1994 and Eijffinger and De Haan (1996) have categorically contended that, the CBI indices in majority of high income countries are arises from central banks laws interpretation and are of great concern to legal independence indicator, whereas, in developing countries de facto independence indicators form the main measure of central bank independence. Axel Dreher, Jan-Egbert Sturm, Jakob de Haan (2010) used a data set comprising of eighty-eight countries term of office of central banks governors since 1975-2005. They used logit model to test the likelihood central bank governor term of tenure geting terminated before their legal term in office expires. According to their results, the probability of a TOR as a measure of CBI tend to soar under certain condtions which includes: unstable political system, undue elapse of governor term of service in office and during elections period in self-governing countries. Accordingly, they indicated in their hypothesis that there was a higher chance of the governors getting replaced if there was huge drop out of veto players from the government. Alex, Webb and Bilin (1992)) developed legal independence where they mentioned some of the intrinsic features such as the degree of independence that the authority should bestow to the Bank, and lone dependence on legal component of independence. Beside s, the legal independence is significant in ascertaining inflation rate in developed economies. Whereas, turnover rate of governors forms a better turning point of inflation determination in developing countries. Likewise they argued that, in cases where governor legal term of office is shorter than that of government CBI is likely to be compromised by the government, thereby, resulting to increased TOR. More over, the governor is likely to be susceptible from government influence thereby derailing long-term objective of policy formation and implementation under the pretext of political pressure especially during election periods. (Kuttner Kenneth, Posen Adam 2010), took the same direction and indicated that undue appointment of governor in office result to construed information to the bank in terms of carrying out its primary objective of price stability. For instance, unjustifiable appointment of governor under low inflation periods may reinforce the exchange rate, while the opposite is always true. Since governors appointment seem to contain valuable information regarding the exchange rate and inflation rate. Gutierrez (2003) indicated that CBI has positieve impact in reducing the chances of governments incurring budget deficits through quasi-fiscal activities. Since such activities can be understood on their inflationary impacts. Posen and Kuttner (2010) estimated the effect of legal appointment of governor to office exchange rates and bond yield and argued that the main test was to verify the scope to which markets observe that the next governor will bring a swing in policy, whereby he/she is expected to determine the bearing of such swing. This is in conformity with the fact that, the news conveyed may favour either one side due to markets reaction after such appointment. 2.4 Financial Institutions Another important prerequisite for successful ITF stressed by the literature is a healthy financial and banking system. Several reasons can be advanced to explain the great importance of well-functioning financial system under inflation targeting framework. First, a sound financial system is essential to guarantee an efficient transmission of monetary policy through the interest rate channel which forms the major channel through which the CBK carries out its main objective of price stability, and more specifically forms an enabling environment of smooth exchange and provision of credit. Second, according to Mishkin (2004), a weak banking sector is potentially problematic to achieve inflation target, because the central bank would be hesitant to raise short-term interest rates for fear that this will impact the profitability of banks and lead to a collapse of the financial system. Third, countries characterized by weak financial institutions are more vulnerable to a sudden stop of cap ital outflows, causing a sharp depreciation of the exchange rate which leads to upward pres

Sunday, October 13, 2019

The Trail of Evidence From Treatment To Causes of Depression Essay

The Trail of Evidence From Treatment To Causes of Depression When a person is depressed, the primary characteristic is a subjective awareness of mood change: the person has an ongoing feeling of sadness or emptiness. This feeling is often accompanied by eating disturbances, feelings of hopelessness, inability to concentrate, indecisiveness, sleep disturbances, lost interest in enjoyable activities, psychomotor retardation, fatigue, sluggishness or lethargy, and is often co-morbid with other disorders, especially anxiety. This constellation of feelings and observable behaviors give rise the term depression. In cases where the depression is not severe or recurrent, psychotherapy alone may be sufficient. However, in many cases, antidepressants in conjunction with psychotherapy are indicated. And in some proportion of cases, where the depression is especially severe, persistent, debilitating and resistant to antidepressants, therapies involving electrical stimulation to the brain are sometimes used. In psychology, theories surrounding the etiology of depression vary widely, from neurobiological to cognitive to behavioral, socioenvironmental and psychodyanmic. Biosocial models acknowledge that both biological predisposition and environmental factors play an interactive role in the creation and maintenance of depression. The nervous system is always changing. It changes as a result of its own activity, which itself is a reflection of responses to a variety of sources: external input, the system's own cyclical fluctuations, and its modification due to past experiences. Moreover, the nervous system's changes occur in varying degrees, from extremely temporary (action potentials transiently change the nervous system) to la... ...ations with Neil's Brain , by William Calvin and George Ojemann http://www.williamcalvin.com/bk7/bk7.htm 7)NAME OF YOUR THIRD WEB REFERENCE SITE, COMMENTS ABOUT IT http://serendip.brynmawr.edu/bb/neuro/neuro01/web3/URL%20OF%20YOUR%20THIRD%20WEB%20REFERENCE 8) New technique looks promising for treatment resistant depression http://www.psych.org/pnews/00-01-21/technique.html 9) Vagus nerve stimulation for treatment-resistant depressions: a multi-center study. led by John Rush http://www.journals.elsevierhealth.com/periodicals/bps/abstracts/994888abs.htm 10) VNS: high tech hope for those with major depression , by Sandra Gordon http://aolsvc.health.cbshealthwatch.aol.com/ 11) A noradrenergic and serotonergic hypothesis of the linkage between epilepsy and affective disorders by P C Jobe et al http://depression.about.com/gi/dynamic/offsite.htm

Saturday, October 12, 2019

Why Software Systems Fail Essay -- Software Systems Computers Technolo

Why Software Systems Fail 1.0 IntroductionIn this report I will be concentrating on the failure of software systems. To understand why software systems fail we need to understand what are software systems. Software systems are a type of information system. This is because a software system is basically a means for hardware to process information. Flynn’s definition of an information system is:"An information system provides procedures to record and make available information, concerning part of an organization, to assist organization-related activities."Humans have been processing information manually for thousands of years, but with the vast increase of demand for knowledge this century has meant that a new method of information processing has been needed. Software systems have provided a new means that is much faster and efficient. As a result a huge number of organisations have become software dependent. Some of these systems are used to safeguard the lives of many people. This means that if these systems were to fail they could lead to devastating consequences. Here are some examples of where software systems are used heavily and could be very dangerous if they were to fail - aviation, hospitals, space exploration, nuclear power stations and communications. I will be looking at some examples of actual software failure in these fields to explain the reasons why systems fail.2.0 Reasons for Systems FailureIf software systems failure can be so dangerous why can they not be completely eliminated? According to Parnas, "The main reason is that software can never be guaranteed to be 100% reliable. Software systems are discrete-state systems that do not have repetitive structures. The mathematical functions that describe the behaviour of software systems are not continuous, and traditional engineering mathematics do not help in their verification." In other words some software can be so large that thorough testing can be almost impossible and so bugs in the software can go unnoticed. An example of this was when an Atlas-Agena rocket veered off-course when it was ninety miles up. Ground control had to destroy the $18.5 rocket. The reasons for this - a missing hyphen. However there are many more reasons for software systems failure, and most of them are due to human negligence that leads to software failure. There are two types of software systems... ...e held responsible for the actions of the organisation. 4.0 Bibliography Flynn, Donal J.; "Information Systems Requirements: Determination and Analysis"; McGraw-Hill Book Company; 1992Parnas; 1985; taken from: Sherer, Susan A.; "Software Failure Risk – Measurement and Management"; Plenum Press; 1992Jones, Carpers; "Patterns of Software Systems Failure and Success"; Thomson computer press; 1996Neumann, Peter G.; "Computer Related Risks"; Addison-Wesley publishing company; 1995Petroski, Henry; "To Engineer is Human"; MacMillan Publishing; 1985Flowers, Stephen; "Software failure: management failure"; Chichester: John Wiley and Sons; 1996.Report of the Inquiry into the London Ambulance Service; February 1993. Simpson, Moira (1994); "999!: My computers stopped breathing !"; The Computer Law and Security Report, 10; March – April; pp 76-81Dr. Dobbs Journal; January 1997 edition<a href="http://catless.ncl.ac.uk/Risks">http://catless.ncl.ac.uk/Risks<a href="http://www.scit.wlv.ac.uk ">http://www.scit.wlv.ac.uk <a href="http://www.bbc. co.uk/news">http://www.bbc.co.uk/news<a href="http://abcnews.go.com/sections/travel">http://abcnews.go.com/sections/travel