Wednesday, July 24, 2019
Legal and ethical issues in health occupations Term Paper
Legal and ethical issues in health occupations - Term Paper Example Health and wellness form the basis of any society and that explains why health care matters are given more weight including stringent legal and ethical structure. According to the text of study, various laws are applicable to ensure quality service delivery by the healthcare professionals. Top in the list is the law of contract which provides all the terms and conditions of a contractual agreement between two or more parties. It also bears the corresponding remedies to breach of such contractual obligations by either or all the parties. Under this law, the healthcare providers are at liberty to charge the cheapest on their medical supply to the healthcare facilities like hospitals, dispensaries and others with the primary aim of improving the health of the patients and this would not amount to antitrust by similar competitors. This is in line with the code of ethics expected of healthcare professionals that requires that the lifesaving comes first at even no pay then other things fol low. For instance, when a given health officer offers healthcare at any relatively cheaper cost, no entity can seek legal redress over this since it serves the purpose of service to humanity (Judson, Karen, Carlene and Karen 43). The law of contract also assumes that any healthcare provider is answerable to the state at any given time over his/her conduct immediately the permit to join practitioners is issued. Any breach of the contractual agreement by a healthcare professional is a big problem that is severely punishable owing to its attachment with life which is invaluable. The legal concept of tort also affects the medical professionals at large and is always given a serious attention by the society to tame errant medical practitioners. This law deals with civil wrongs that their remedy does not carry with them severe government action on the defendant but is always solved by compensation to the plaintiff and other constitutionally defined remedies. In this case, negligence remai ns one of the thorniest issues with the healthcare providers. In this scenario, the patient trusts the ability and care of the professional with his/health conditions (Reviews 58). This means that the medical staff needs to take all possible actions within their knowledge and ethics of work to ensure safe administration of health care to the patient. For instance in a case where a patient has been diagnosed with a given infection, it expressly imply that the doctor is able to quote the appropriate prescription. In the event that an individual suffers from a wrong prescription by medical personnel, the aggrieved is allowed to seek legal redress and obtain compensation in the form of treatment costs or undertake another prescription from the healthcare professional. This goes hand in hand with the code of conduct within the ranks of healthcare sector which oblige any healthcare provider to act with utmost professionalism and care. Even within the healthcare sector exists criminal aspe ct of the law which is punishable by jail, dismissal from the practitioning body and other punitive measures. As a healthcare prof
Tuesday, July 23, 2019
Cyber Incident Response for Blue Moon Financial Term Paper
Cyber Incident Response for Blue Moon Financial - Term Paper Example The company has been faced with several challenges with respect to addressing the network intrusion attacks and cyber security issues because it is ill equipped to deal with such issues. This paper discusses how I will deal with the active network intrusion attack in the company under various sub-topics. The first steps to take in the current scenario are to identify the nature of attack. I am the only person who is qualified and well trained to deal with such issues. Therefore, before informing anyone else about it, I will first find out the type of the attack targeted towards the company. This will be the first step towards stopping the attack because further steps cannot be initiated if the type of attack is not known well. Secondly, I will localize the source. This means that I have to use firewall and IDS logs to try to find out where the attack is coming from to be able to know whether the attack is coming from a compromised host or from the outside world. This is also essential in ensuring that the attack can be stopped as soon as possible (Sharma, et.al, 2015). After this, the next step that I will take entails blocking the attack. Once it source and the nature of attack is clarified, I will take the necessary actions towards blocking it (Youssef, & Emam, 2011). These actions will include pulling the machines that have been attacked from the network, block the access to the network from that IP address if the attack is coming from outside. Depending on the type of the attack, I may have to use ISP if the attack is a DDoS attack. I will also backup the evidence of the attack by keeping the logs generated to ensure that I have a detailed account of the attack. I will also find other compromised machines and use appropriate tools to root out any other machines that have been attacked. The last aspect is to ensure that I do not
Monday, July 22, 2019
Lengthy lag Essay Example for Free
Lengthy lag Essay From regular lag, another type of lag can developà ° delay that becomes too long for one of the speakers Lengthy lag occurs when à ° speaker perceives that the ensuing verbalizing or silence is taking too much time and reacts verbally or nonverbally. Typically this produces one of two results, the speaker who is uncomfortable begins to talk again, creating à ° pause, or exhibits some discomfort while waiting. In this example, which occurs moments after the meeting begins, the Professor explains that she scheduled à ° TV/VCR for next weeks class to show the Students ASL story. 4 After waiting one second, while the interpreting occurs, the Professor begins to speak again. The Professor speaks one utterance and pauses. Meanwhile, an interpretation into ASL is produced which lasts one line segment (à ° full second), and then the Professor speaks again. Later, in while viewing this portion on videotape, she indicated that she continued for à ° reason: Ãâ am waiting for à ° response, and it doesnt seem to come, so Ãâ say something. The lag becomes lengthy, not because of à ° time count, but because of the Professors perception that the ensuing silence lasts too long. One of the factors that may have prompted the Professor to continue talking is that, after the interpretation, the Student begins to respond by nodding his head. As the Professor finishes in line 65, she hears nothing for à ° full second, although it is possible that she sees the interpreter signing. This lack of any speaking may have increased the perception of silence (or that there might not be à ° response) by the Professor. The Professors wait for à ° response in this example becomes important in the light of future silences. The next example of à ° lengthy lag, à ° segment that occurs near the end of the meeting, is when the Professor waits but signals her discomfort nonverbally. Interestingly, however, she continues to wait without adding more talk. The Student wants to hand his paper in at à ° later date. The Professor wants to see if other students in the class are finished with their transcripts the following week rather than today. After two line segments, the Professor is finished. The Interpreter is interpreting from what was said before and continues interpreting for the Professor. The Interpreter actually starts interpreting this segment on line 187 and continues for six lines. The interpretation continues on and on while the Student says nothing and the Professor says nothing. At line 192, after waiting for three and à ° half lines or transcript or more than three seconds, the Professor turns, looks at the Interpreter, and then looks back to the Student. Her movement and her facial expression seem indicative of à ° sense of puzzlement, but she does not initiate any talk and continues to wait for à ° response. Ãâ consider this another example of lengthy lag because of the discourse time that elapses and also because of the discomfort displayed by the Professor. It is not hard to note examples of lengthy silences during which primary participants display uneasiness. In her interview, the Professor commented several times that because she heard no response in what seemed to her à ° reasonable delay, she continued talking. This can be attributed to her own conversational style of faster pacing and pausing discussed in her book Conversational Style: Analyzing Talk among Friends (Tannen 1984). More interesting, however, is that her tolerance for à ° reasonable delay grew from à ° length of two clauses to five clauses or from one second to slightly more than five seconds. Learning about Lag From studies of ordinary discourse we know that although participants begin to talk in à ° context, they continue to contribute to contextual features, changing the context as the interaction proceeds (Goffman 1981; Gumperz 1982, Schiffrin 1994). In so doing, they learn how to interact with their conversational partners. Thus, it is not unique to learn that primary speakers who lack experience with interpreters seem to learn about interpreted interaction as they progress through à ° meeting. However, it is unique in the sense that this learning, for the most part, remains un-described and unaccounted for. In this meeting, the Professor learns how interpreted conversations proceed so that her tolerance for lag and her wait for à ° response grow, gradually increasing in length. At the beginning of the meeting, she turns several instances of lag into pauses by speaking again. As the meeting continues, she tolerates longer periods of silence but still turns these delays into pauses. Later, she accepts another long silence which the Student changes into à ° pause to shift to à ° new subtopic. Toward the end of the event, she waits for à ° response even when it becomes longer than she normally tolerates. Here are segments of talk demonstrating that the Professor is learning about lag through the course of the event. The first example has already been presented as turning lag into à ° pause by adding more talk.
Sunday, July 21, 2019
Media And Childhood Obesity
Media And Childhood Obesity Obesity is among one of the many global epidemics. Its impact affects all age groups. The attention of international and national foci has been sparked by the reported rising of prevalence of child and adolescent obesity for preventative and management action. (Bromfield, 2009). Childhood obesity is a major public health problem. A main contributing factor to childhood obesity has been identified as food advertising during childrens television programs (Udell Mehta, 2008). Media is present to inform the public and present them with arguments that support or oppose solutions to childhood obesity. Obesity affects approximately 20% of the youth in America and this number is always rising. The media can define public perceptions on issues by choosing what to present and how this information is presented. This technique is called framing and can define what problems are perceived to be important and what the causes and solutions might be. It is hypothesized that media has a negative infl uence on the obesity of children. Past research will further help investigate this problem. In an article by Harris, Bargh, and Brownell (2009), it is hypothesized that food advertising on television triggers children to automatically snack on whatever food is available. It is stated that advertisements for high calorie, low nutrient foods are common contributors to the obesity epidemic. Obesity is the fastest growing cause of disease and death in America. (Harris, Bargh, and Brownell). The trend is increasing among young people. Snacking at non-meal times occurred in 58% of food ads during childrens programming. Food advertising to children portrayed unhealthy eating behaviors with positive outcomes. An important source of priming influences is the media, including television programs and advertisements. Food and beverage advertisements convey extremely powerful food consumption cues, including images of attractive models eating, snacking at non-meal times and positive emotions linked to food consumption (Harris, Bargh, and Brownell). The messages presented in television f ood advertising have the potential to act as real world primes and lead to equivalent eating behaviors. The article predicted that food advertising that conveys snacking and fun will automatically prompt eating behavior among adults as well as children. Experiment 1 in this study proved that snacking while watching commercial TV with food advertisements for 30 min. per day would lead to a weight gain of almost 10 pounds per year. Childrens behavior was consistent with what they saw on television, thus an automatic connection between what they saw and how they reacted due to the effect of food advertisements. In Experiment 2, it was predicted that food advertising would also prime eating behavior among an adult sample, and whether effects of eating behavior are due to exposure to images. It was hypothesized that watching food advertising that promoted snacking, fun, and excitement will cause people to eat more of snack foods than advertising that has nutrition benefits. The experimen t supported the direct influence of the snack advertising on consumption. The experiments presented in this article were highly consistent with the hypothesis. Food advertising that promoted snacking, fun, happiness, and excitement contributed to increased food intake. A limitation found in this study is that real world exposure to food advertising occurs in many situations, and it is not definite that other situational factors could not have moderated the advertising effects (Harris, Bargh, and Brownell). Reactivity was minimized and external and internal validity were enhanced when the experimenters mocked TV-viewing conditions in a natural setting. Another limitation is that the specific advertising features that affected eating behaviors can not exactly be pinpointed. More research is needed to make certain that priming snacking versus nutrition benefits and not other features of the advertisements caused the effects on consumption behaviors (Harris, Bargh, and Brownell). In an article by Udell and Mehta (2008), it was hypothesized that the main causes of childhood obesity were advertisements of unhealthy foods, no physical activity, increased time in front of the television, and busy parents. Policy changes to food advertising, encouraging environments for physical activity, better environments for healthy eating and healthy eating strategies were presented as solutions (Udell Mehta). This study found one hundred and sixty-six newspaper articles published that reported on restricting television food advertising to children as a solution to childhood obesity. Young children were found to be vulnerable to manipulation of these food advertisements. This study suggested that children need to be protected from high exposure to advertisements by encouraging them to eat foods with high energy and low nutrients (Udell Mehta). The article found that childhood obesity was caused by advertising of junk foods and a lack of physical activity due to the amount o f television watched. The media often links unhealthy foods with something catchy. For example, McDonalds shows viewers that if a happy meal is purchased, the child will receive a toy. This gives a misperception to children that they will be rewarded when consuming unhealthy foods. Most of the food advertising for children was for high fat content low-nutrient foods, and this was giving children the wrong idea of what is healthy. A positive correlation was found between a childs weight and the amount of time children spent on focusing their attention on media. This study emphasized the role of the media in advertising to children as a factor in childhood obesity. The articles that were analyzed were from July 1st, 2002 to July 1st, 2005, which was a time period where obesity was becoming an outbreak. The articles were 150 words or less and the main themes throughout these articles were concerning restrictions on food advertising to reduce obesity among children. Most of the results were constant with the idea that there should be restrictions on advertising. However, many articles suggested that television advertising had no effect on children and that the inactive lifestyle of a child was the main reason for their weight. The findings of this article were limited because there were only 166 articles selected and there could have been more data to support the hypothesis. The time period was also a limitation in this study because it was only within a 3 year span of time. During those years, obesity had just come to the publics attention so little was known of the actual cause. A study by Bromfield (2009) summarizes the negative physical and nonphysical outcomes for obese children compared with their non-obese peers. Obesity has been identified as a major risk factor for the development of common chronic and disabling conditions. Obese children have an increased risk of psychosocial and mental problems that can continue into adulthood. (Bromfield) Low self-esteem was presented in this article as the most common consequence of obesity. Other studies linked obesity to disordered eating, unhealthy weight control behaviors, bulimia, body esteem, and distorted body image. Obesity can become a child protection concern. Over-feeding of children by adults can be observed as producing extensive harm. Studies found that obese children with low levels of self-esteem engaged more in high-risk behaviors like smoking or alcohol consumption. (Bromfield) Research suggested that children who were overweight would encounter bullying as a consequence of their weight. It was a lso said that levels of education seem to be inversely correlated with body weight. A study in China found lower IQ scores in cases where children were severely obese compared to average weight peers. A survey was conducted for overweight children who rated their school performance and educational future lower than their non-overweight peers. Obese children often blamed their weight as a reason for having few friends and being left out from social activities. Weight bias and stigma in this article refers to weight-related attitudes that are displayed as stereotypes, stigma, rejection, and prejudice towards children because they are overweight or fat. (Bromfield) Current detrimental beliefs in the Western World include fat, ugly, awkward, overeaters, lazy, stupid, and worthless. Treatment for childhood obesity has been considered, including diet changes, exercise, surgery, medication and psychotherapeutic interventions. Parental involvement has been believed to be a main factor for t he most effective intervention. Limitations in this study could be location, as US studies dominated the UK studies. Also, even though research has shown that obese and overweight children are the targets of stigma, more evidence would be needed to understand its nature and impact and how outside factors such as age, race, weight status, and disability act as mediators or moderators (Bromfield). Media influence on childhood obesity is talked about more in research led by Harris and Bargh (2009). Investigation shows that childrens food preferences are acquired through learning processes which have long-lasting effects on diet. It was hypothesized that a specific type of food gains higher taste rating if it was advertised rather than it not being advertised. It was also predicted that there is a correlation between the time spent watching television at a young age and an unhealthy diet later on in their life. This is partially due to television advertising of food products which may influence ones perceived taste of the unhealthy food. It is debated in this article who is to blame for the overweight children: the food industry or the parents. Research has shown the crucial role of parents in early learning of food preferences, as they start to develop early in children. Peers, social institutions, the media, and culture are all considered to play a role in the spread of food p references (Harris Bargh). Children learn about their social world openly through observation of the media. Children learn while watching television that foods filled with calories and are high in fat and sugar taste great and are rewarding to eat. Food products make up the most highly advertised category on television that children watch most, 98% of the foods consisting of low nutritional value. The average child watches 15 television food ads per day, promoting unhealthy food products and thus promoting that eating fatty foods is fun, happy, and cool. (Harris Bargh) Research also shows television viewing and unhealthy eating habits are linked. Effects of television food advertising include greater recollection, preferences and requests to parents for the advertised products. Planned solutions to protect children from the unhealthy influence of television and food advertising included public service media campaigns, parent-child communication, and reductions in exposure to unhea lthy messages on television (Harris Bargh). In this article, it was predicted that preceding television exposure would be related to greater perceived taste and enjoyment of unhealthy, highly advertised foods. Parental interventions were hypothesized to moderate the unhealthy influence of television exposure on diet, which depended on how parents conveyed the message to their children. To test these predictions researchers conducted a study on college students at a private university and a state college; 90 from the public university and 116 from the private university (a total of 206 students). These participants were asked to complete a 30-min online survey of childhood memories of their parents rules and television viewing. The results were constant with the predictions of the experimenter, as perceived taste was associated with consumption. Healthy food consumption was associated with higher taste ratings for healthy foods, and lower taste ratings for unhealthy foods. From the collected data, results indicate that as predicted, healthy food consumption was correlated with higher taste ratings for healthy foods and lower taste ratings for unhealthy foods (Harris Bargh). These findings supported the hypothesis that healthy and unhealthy diets are directly related to the perceived taste of healthy and unhealthy foods. The hypothesis that the relationship between early television viewing and unhealthy eating with children and adolescents continues into early childhood proved to be true with the results. Evidence consistently supports that children who watch more television simply like the taste of unhealthy foods more, especially those which have been highly advertised. Limitations of the data include the discrepancy of self reports. Participants could exhibit self-deception or biases which could lead to results that do not accurately represent participants actual behaviors and beliefs (Harris Bargh). A survey was conducted with college students, however a student population was examined that may not be truly representative of all young adults and college students. Results represent relationships between variables and cannot determine causation. In the final article, Moore and Rideout (2007) explain the importance of marketing communication tools and how it is being used by advertisers to target children. The article discussed how food marketing is impacting children and how it may be linked to obesity. It was explained that internet, specifically, is being used as a marketing communications tool to target children. The focus of this research was on the online marketing practices by advertisers and how their practices affect children. It was hypothesized that exposure to the media, especially online advertisements, influences dietary habits among children and alters their perception on foods (Moore Rideout). The study was conducted on major food advertisers by analyzing their Web sites from the summer to the fall of 2005 and 96 brands of food were used as candidates. There were three parts to the study: the features of the site, the specifics of the brand and how it was presented on the site, and games online. Results indic ated that 85% of the brands had content on their Web site that had content for children. It was estimated that there were around 49 million views by children aged 2-11 per year on Web sites. Of those sites viewed by children, an astounding 73% of them contained one food brand while 27% contained up to 41 brands. It was also observed that of the many food brands on the Web sites, most of them advertised unhealthy foods, like candy, salty snacks, and sugary drinks. The researchers established that the advertisements online influenced childrens perceptions on what to eat. Because children spend so much time online playing games or socializing, they are constantly being exposed to persuasive food advertisements and its leading to the assumption that children are becoming obese because of the lack of physical activities and that their perceptions of food were being altered. Given the right programming, television can be a prevailing tool of entertainment and education for children. Studies have been presented in this paper that television and media has very negative influences. Television is a destructive force through images and advertisements which can influence viewers to make poor food choices or to overeat. Excessive television watching can result in inactivity which leads to weight gain and poor levels of fitness. Children are especially targets of food advertisements and have been proven to be more vulnerable than adults to their influence. Results indicate that media indeed does play a crucial role in the prevalence of obesity among children. (Bargh Brownell, 2009; Bargh Harris, 2009; Moore Rideout, 2007; Udell Mehta, 2007). Evidence shows that advertisements have a strong impact on the way children distinguish what is healthy and what is unhealthy. Also assumed in the previous studies is that advertising companies are capable of persuading children very easily to consume their products and that the amount of advertising should be limited to solve the problem of obesity in America. These articles have provided significant insight on how media influences childrens eating habits. Obesity has become a rapid growing epidemic in this country and it is vital to understand the degree of the dangers of this disease. To further investigate the relationship between the influence of media and childhood obesity, it would be helpful to directly study childrens diets and the amount of time engaged in television and internet. The first step to solving this epidemic is by attacking the problem that has likely caused it-the media.
Mechanisms that Lead to Dynamic Self-organization
Mechanisms that Lead to Dynamic Self-organization SELF-ORGANIZATION AND GROWTH OF NANOSTRUCTURED BRANCHED CRYSTAL PATTERN IN BELOUSOV-ZHABOTINSKY TYPE CHEMICAL REACTIONS ROHIT SRIVASTAVA, M.Phil. 1. Introduction The self-assembly of structural motifs and the self-organization of dynamic motifs into highly ordered one-, two-, or three-dimensional patterns with controlled structures have received much attention in recent years, because of their importance in basic research and their potential applications [1,2]. The spontaneous formation of nano-scale patterns represents a significant way to control the structure and morphology of various functional materials [3,4]. This area is of significant interest because of its possible relevance in improving the materials properties. It can be achieved readily by organizing the nanostructure building blocks by reacting chemical systems over a broad spectrum of space and time [5]. The recent application of nonlinear chemical phenomena has been found in the designing of modern materials of advanced functionality [6-8]. The reacting chemical systems have also been found useful to fabricate and design of diverse optoelectronic nano-devices and nano-catalyst s. The role of self-organization has been exemplified to control the orders and hierarchy of such intricate patterns [9-12]. Self-organization, based on interplay between reactions and diffusion, has been found to occur in a range of physical and chemical systems. The recent development of non-equilibrium crystallization phenomena enables one to forms spontaneous, coherent, and periodic patterns which are accompanied by molecular interactions. Among the different nanostructures, the dendritic, diffusion-limited-aggregation (DLA) and spherulitic crystal patterns are attracting the attention of scientific community due to their importance in connection to some fractal growth phenomena and crystallography research [13-15]. The growth of dendritic crystals is also an example which mimics several pattern-forming phenomena encountered in nature and biology. The aim of our research is to understand the mechanisms that lead to dynamic self-organization in nature in order to anticipate the development of some interesting bio-inspired materials and devices that function far from equilibrium. The present research is also helpful to understand, design and control chemical systems that exhibit complex, non-linear, dynamical behavior in time and space. These behaviors include periodic oscillations, chaos, wave propagation and pattern formation. Such system may provide some insights into related phenomena encountered in biology, physics, mathematics, polymer and material science. The Belousov-Zhabotinsky (BZ) reaction provides a classical platform for investigation of these phenomena. The work described here is an experimental study of growth of nanostructured branched crystal patterns by utilizing three different types of BZ systems. In liquid phase, we observed the reaction system to result into well distinguishable intermediate spatial patter ns leading to the formation of DLA and spherulitic structures as the final product. The oscillatory behavior, exhibited by UV-Visible spectroscopy, was found to be interrelated to the DLA and spherulitic structures formed in the BZ system. On the basis of these results, a general mechanism for the synchronized formation of the ordered DLA and spherulitic structures is proposed. In another chemical system chaotic oscillations have been observed experimentally in dualââ¬âfrequency oscillator o-Hydroxyacetophenoneââ¬âceriumââ¬âbromateââ¬âsulphuric acid (OAPââ¬âCe4+ââ¬â BrO3âËâââ¬âH2SO4) in CSTR. 2. Scope of the study . Recently there has been increasing interest in fractal and self-organized nanostructured branched crystal growth phenomenon under non-equilibriums conditions. Laplacian growth phenomenon in pattern formation has attracted considerable attention.. DLA and spherulitic crystal patterns have also been observed in various crystallization phenomena usually at far from equilibrium conditions, such as electrodeposition, bacterial colonies, colloidal aggregates, dendrite formation, viscous fingering, and many others. Our research interests are to elucidate the mechanistic aspects of aggregation in macromolecules related to the biological pattern formation. The growth of nanostructured dendritic crystals is also a profound example among a wide range of pattern-forming phenomena in nature and biology. The study of chemical and biological pattern and their shapes have considerable current interest due to its close resemblance with morphology of growing bodies. Irreversible aggregation of small particles to form large clusters is technologically and scientifically important. Far from, equilibrium growth phenomena have been reported in electrochemical deposition, physicochemical and biological systems. The study of chemical waves, rhythmic crystallization in gel media and crystal growth, will be helpful in understanding morphological stability of growing bodies. 3. Objectives The present study includes the objectives systematically, from following angles To investigate new types of multiple patterns in mixed organic substrate of Belousov-Zhabotinsky reaction. To investigate stationary-like spatial patterns in dual organic substrate of a micro-emulsion system. To study the transition from stripe to hexagonal spatial pattern by varying the temperature and concentration of the BZ reactants. To study the growth of nanostructured DLA and spherulitic crystal pattern in BZ type oscillatory chemical reaction. To study the chemistry of undertaken BZ reactions and proposed the reaction mechanism. To study the entertainment phenomena between co-existing oscillators and continuously stirred tank reactor (CSTR). To study the dynamics of the spatiotemporal pattern formation by varying the chemical and physical parameters. To elucidate the role of reaction-diffusion mechanism and self-organization process for the growth and morphological study of predictable crystal patterns with help of various analytical methods. 4. Organization of thesis The organization of thesis has been classified into following chapters. Chapter 1 provides an introduction to the thesis. This chapter outlines, in brief, self-organization in nonlinear chemical dynamics and its relation with the material science. The work conducted and presented as part of this thesis rely upon previous research conducted across a broad range of scientific disciplines; which include an understanding of the concept of nonlinear chemical dynamics; the nonlinear reaction kinetics of the BZ reaction; and materials science. In this context, the workflow of the thesis is outlined in this chapter. One of the initial objectives of the research was to become familiar with the chemistry of the BZ system, with a particular interest in identifying the reaction parameters that control and affect the types of patterns that are formed. Pattern formation and chemical chaos in the BZ system was studied individually in different systems. Chapter 2 provides the literature survey from the historical background of the BZ reaction to recent development in pattern formation in oscillatory reaction media. This chapter includes the following subheadings. Historical background of the BZ reaction Oscillatory chemical reaction and chemical chaos Patterns and wave Substitutes of the BZ reaction Recent development in pattern formations in oscillatory reaction media Chapter 3 describes the detailed experimental procedure adopted for the growth of self-organized nanostructured spherulitic patterns and their morphological investigation in combination of dual substrates (adipic acid and acetyl acetone) and dual catalysts (cerium and ferroin) by utilizing a number of characterization techniques e.g. optical microscopy (OPM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), X-ray diffractometer and Fourier transform infrared spectroscopy (FT-IR) spectroscopy. The oscillatory behavior was also investigated by using UV-Visible spectroscopy. On the basis of these results clues are sought for explaining the observed growth of nanostructured spherulitic patterns inlight of self-organization phenomenon. Chapter 4 deals with the detailed experimental procedure for the growth of self-organized nanostructured diffusion-limited-aggregation (DLA) crystal patterns. The DLA crystal patterns were characterized OPM, SEM, TEM, XRD, Fourier transform infrared spectroscopy (FT-IR) and thermogravimetric (TG) analysis. The oscillatory behavior, exhibited by UV-Visible spectroscopy, was found to be interrelated to the DLA structures formed in the reaction system. This chapter elucidates the roles of the various possible factors behind such phase-transformation along with the plausible explanation of the corresponding reaction pathways. Chapter 5 furnishes the detailed experimental procedure and analysis for the growth of nanostructured DLA patterns in microemulsion consisting of water, styrene, cetyltrimethylammonium chloride (CTACl), potassium persulfate (PS) and oscillating Belousov-Zhabotinsky (BZ) reactant. The chapter describes the analysis of formation of a variety of spatiotemporal patterns viz. concentric wave, spatial (stripe) and chaotic pattern in the used BZ reaction system and has employed TEM, XRD and particle size analyzer to study the morphology, crystallinity and particle size of the associated structure formed. Chapter 6 of the thesis represents the detailed experimental procedure and associated studies for the investigation of chaotic oscillations observed experimentally in dualââ¬âfrequency oscillator. Chapter 7 is the conclusion, which summarizes the research findings and also provides a future perspective of the work undertaken. References M. Antonietti, Nat. Mater., 2 (2003) 9. H. Cà ¶lfen, S. Mann, Angew. Chem., 115 (2003) 2452. J. P. Gollub and J. S. Langer, Rev. Mod. Phys. 71 (1999) 5396. H-J Freund, Surf. Science. 500 (2002) 271. T. A. Witten, L. M. Sander, Phys. Rev. Lett. 47 (1981) 1400. I. Das, N. Goel, N. R. Agrawal, S. K. Gupta, J. Phys. Chem. B, 114 (2010) 12888. I. Das, R. Choudhary, S. K. Gupta, P. Agrawal, The Phys. Chem. B, 115 (2011) 8724. I. Das, N. R. Agrawal, R. Choudhary, S. K. Gupta, Fractals, 19 (2011) 317. Gao-Ren Li, Xi-Hong Lu, Dun-Lin Qu, Chen-Zhong Yao, Fu-lin Zheng, Qiong Bu, Ci- Ren Dawa and Ye-Xiang Tong, J. Phys. Chem. C, 111 (2007) 6678. K. Fukami, S. Nakanishi, H. Yamasaki, T. Tada, K. Sonoda, N. Kamikawa, N. Tsuji, H. Sakaguchi, Y. Nakato, J. Phys. Chem. C, 111 (2007) 1150. A. Volford, F. Izsak, M. Ripszam, I. Lagzi, Langmuir, 23 (2007) 961. T. Wamg, An-Wu Xu, H. Colfen, Angew. Chemie, 45, (2006) 4451. N. Yadav, P.K. Srivastava, New. J. Chem., 35 (2011) 1080. N. Yadav, P.K. Srivastava, Cryst. Res. Tech., 46 (2011) 277. N. Yadav, S. S. Majhi, P. K. Srivastava, Bullen. Korean. Chem. Soc., 33 (2012) 3397. List of publications Rohit Srivastava* and P.K. Srivastava, Self-organized nanostructured spherulitic crystal pattern formation in Belousov-Zhabotinsky type reaction system, Chemical Physics, 426 (2013) 59-73. Rohit Srivastava*, P.K. Srivastava and Jayeeta Chattopadhayay, Choas in a chemical system, European Physical Journal Special Topic, 222 (2013) 777-783. Rohit Srivastava*,Jayeeta Chattopadhyay, P.K. Srivastava, Narendra Yadav, Growth of nanostructured Diffusion-Limited-Aggregation (DLA)-Grass like branched patterns in a Belousov-Zhabotinskii (BZ ) type reaction system, International Journal of Chemistry, 34 (2013) 1119. Rohit Srivastava and P.K. Srivastava, Multiple pattern in mixed substrate BZ system, Chemistry Journal, 2 (2013) 44. Rohit Srivastava*, and P.K. Srivastava Self-organized nanostructured Diffusion-Limited-Aggregation (DLA) crystal pattern formation and morphological transition in BZ type reaction system, New Journal of Chemistry (Under review), 2014. Rohit Srivastava* and P.K. Srivastava, Nanostructured Diffusion-Limited-Aggregation (DLA) crystal pattern formation governed by spatial pattern in reactive microemulsion system, J. Nanostru. Chem. (Springer Publishing) (In press), 2014. Conference Publications: Rohit Srivastava and P.K. Srivastava â⬠Chaos in a chemical systemâ⬠Proceed. 7th National conference on Nonlinear Systems and Dynamics (NCNSD), Organized by Department of Physics, Indian Institute of Science Education and Research (IISER) Pune, (12-15 July, 2012). Rohit Srivastava and P.K. Srivastava â⬠Self-organized nanostructured Diffusion-Limited-Aggregation (DLA) crystal pattern formation in Belousov-Zhabotinsky (BZ) type reaction systemâ⬠Proceed. 8th National conference on Nonlinear Systems and Dynamics (NCNSD), Organized by Department of Physics, Indian Institute of Technology (IIT Indore) Indore (12-15 December, 2013).
Saturday, July 20, 2019
The Origins of Voodoo Essay examples -- Religion Vodun Vodou
The Origins of Voodoo Voodoo is a religion rich in heritage and founded in faith and community. The religion has been villainized by western culture and has been wrongly portrayed as malignant and dangerous. The religion is not founded in any of the (known) "black magics" or fear popularized by Hollywood films, but rather it is based on balance and tradition. The religion is not something that should be encountered with inhibition or fear induced from childhood horror stories, but embraced for its strength and history. Voodoo originated as an amalgam of African religions during the slave trade. As slaves were shipped from Africa to the Caribbean, groups of slaves sharing a similar heritage were broken apart to prevent any sense of community or bond between them. With no connection beyond the tortures of slavery, the slaves had little chance to establish any relationship to their fellow captives. They came from lifestyles far removed so one of the only opportunities for a common bond came from sharing their deep faiths (Erikson). Despite the fact that the religions were just slightly connected, these native faiths allowed an intellectual (as can be, given the narrow scope) exchange and common bond. With several different religions present in any given group of slaves, the majority of slaves adapted by holding a service which accepted all lineages and respected all ancestral lines of faith, both aspects being of primary concerns in African religions. These services were effective in blending the rite s and practices of many religions into one combination religion. This adaptation effectively created a new religion, voodoo, which translates to ?spirit? in several African languages (Bout). Voodoo allowed the slaves to feel like part of their own group. This new-found unity was viewed as a threat to the French and British plantation owners of the newly settled colonies. As a means to quell the religious unity, the plantation owners forbade the practice of religion and punished slaves who attempted to pursue voodoo. Catholicism was presented as an alternative to voodoo. Instead of accepting the Catholic religion, many slaves only incorporated it into the newly established voodoo religion. Catholicism remains an important aspect of voodoo, and several of its methods and rituals are currently practiced as. The punishments of practicing voodoo forced voodoo to ... ...on PCP (no personal experience here, I assure you). The individual would also be dependent on the priest to supply their now life-sustaining drug. This dependence is effectively being ?bound to a master?s will.? In extreme cases the ?zombie? would go through physical effects of drug addiction which leaves the individual looking like a corpse. Voodoo has been greatly misrepresented in American society. It is an honorable and thoughtful religion that should be commended for it?s tenacity through history and it?s involvement in the lives of so many. Voodoo is not the stuff myths and horror movies; rather it is a peaceful, happy, and loving religion that can benefit many more than only those devout to Obatala. Anyone who pursues knowledge owes it to themselves to give voodoo a trial run. Works Cited Bout, Racine Sans. ?The Vodou Page.? AOL.com. 1999. http://members.aol.com/racine125/ (4 Oct. 2001) Erikson, Jacobs. "Voodoo." Compton?s Encyclopedia. Vers. 3.04. 1995. "Vodun (a.k.a. Voodoo)." Religious Tolerance. 2001. http://www.religioustolerance.org/voodoo.htm (4 Oct. 2001). "Voodoo (Vodou) Encyclopedia." Arcana. 2000. http://www.arcana.com/voodoo/ (5 Oct. 2001)
Friday, July 19, 2019
Wide Ivory Woman :: Antigone Sophocles Plato Statue Papers
Wide Ivory Woman You are a wide woman sculpted out of one large solid block of ivory colored, lightly butterscotch speckled stone; you are distinctly and beautifully human, yet larger than life. I look up at you but do not know precisely what it is that you urge me to question. You are a maiden of Menedi, a statue presumably molded of Greek hands in the mid-fourth century B.C. You are seated at a thickly cushioned throne fashioned of the same ivory marble as that of your body, your head titled downward, your figure slightly crouched. Your profiled torso and the throne together are about four feet in height and two in width; your throne rests on a pedestal that I estimate to be still another two feet high. To take you in, then, I must tilt my head upward, as I do now. I can see that you are clearly distinguishable from the uncut granite behind you; your surface is smooth, as is that of the throne. You are veiled and wear over your frame a single covering, cut quite low on the neck, which flows over the crevices of your broad body. You make shadows with your veil, which creases and folds and drapes over your limbs and the throne itself. You are ample in feature and abundantly large, even imposing, in stature; you are maidenly, silent, reservedly pensive. You appear rounded, while the throne at which you sit is austerely rectangular. Your right breast protrudes through your clothing, very round, the nipple palpable and huge. Your distinctiveness is not one of elaborate detail: your face has no eyeballs, your skin no wrinkles, your body no bones. I stand before you and, humbled, read that you once presided over the grave of a warrior, but I cannot comprehend what you mean to war. You are too tranquil for spears and blood and armor, sitting there on your softly padded throne in that otherworldly gentle manner of yours. I see, then, that you are larger than war. I see that you tell of what comes of battle, of the ancient Greek concept of afterlife, of classical women and deity and strength. Your white eyes without their eyeballs are huge and empty, but very open; your slightly parted lips are thick. You are dressed in a long, flowing garment that ripples over your flawlessly smooth body. Features such as these are characteristic of Egyptian royal and divine iconography of the Hellenistic period, the era that produced you. Wide Ivory Woman :: Antigone Sophocles Plato Statue Papers Wide Ivory Woman You are a wide woman sculpted out of one large solid block of ivory colored, lightly butterscotch speckled stone; you are distinctly and beautifully human, yet larger than life. I look up at you but do not know precisely what it is that you urge me to question. You are a maiden of Menedi, a statue presumably molded of Greek hands in the mid-fourth century B.C. You are seated at a thickly cushioned throne fashioned of the same ivory marble as that of your body, your head titled downward, your figure slightly crouched. Your profiled torso and the throne together are about four feet in height and two in width; your throne rests on a pedestal that I estimate to be still another two feet high. To take you in, then, I must tilt my head upward, as I do now. I can see that you are clearly distinguishable from the uncut granite behind you; your surface is smooth, as is that of the throne. You are veiled and wear over your frame a single covering, cut quite low on the neck, which flows over the crevices of your broad body. You make shadows with your veil, which creases and folds and drapes over your limbs and the throne itself. You are ample in feature and abundantly large, even imposing, in stature; you are maidenly, silent, reservedly pensive. You appear rounded, while the throne at which you sit is austerely rectangular. Your right breast protrudes through your clothing, very round, the nipple palpable and huge. Your distinctiveness is not one of elaborate detail: your face has no eyeballs, your skin no wrinkles, your body no bones. I stand before you and, humbled, read that you once presided over the grave of a warrior, but I cannot comprehend what you mean to war. You are too tranquil for spears and blood and armor, sitting there on your softly padded throne in that otherworldly gentle manner of yours. I see, then, that you are larger than war. I see that you tell of what comes of battle, of the ancient Greek concept of afterlife, of classical women and deity and strength. Your white eyes without their eyeballs are huge and empty, but very open; your slightly parted lips are thick. You are dressed in a long, flowing garment that ripples over your flawlessly smooth body. Features such as these are characteristic of Egyptian royal and divine iconography of the Hellenistic period, the era that produced you.
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