Orientador: Mateus José Rodrigues Paranhos da Costa / Banca: Isabella Dias Barbosa Silveira / Banca: Ricardo Andrade Reis / Resumo: Os objetivos foram estudar os efeitos de um programa de treinamento em manejo racional no bem-estar de bovinos e testar a viabilidade prática da aplicação do manejo racional em frigoríficos. Os comportamentos de humanos e bovinos foram estudados em três frigoríficos durante o desenvolvimento de dois processos: 1) condução dos bovinos dos currais de espera até o boxe de atordoamento e 2) atordoamento. Nas avaliações do processo de condução dos animais foram acompanhados 31, 22 e 18 lotes de animais antes do treinamento nos frigoríficos MT, GO e SP, respectivamente, repetindo-se o mesmo número de lotes após o treinamento. Foram registradas duas variáveis do comportamento humano durante a condução dos animais (uso do bastão elétrico e uso inadequado da bandeira) e três do comportamento bovino (escorregões, quedas e vocalizações). Durante o processo de atordoamento foram consideradas duas variáveis, a eficiência de atordoamento (sendo observados 336, 475 e 314 animais nos frigoríficos MS, GO e SP, respectivamente, em cada etapa, antes e após o treinamento) e sinais de insensibilidade (com 400, 453 e 308 animais nos frigoríficos MS, GO e SP, respectivamente, em cada etapa). Os dados sobre a condução dos bovinos foram analisados usando-se Anova com o procedimento GLM e para as variáveis de atordoamento foi utilizado o Teste de Kruskall-Wallis. Houve diferenças significativas (P<0,01) entre frigoríficos nas variáveis escorregões, quedas, uso do bastão elétrico e sinais de insensibilidade. Também houve efeito significativo do treinamento para a maioria das variáveis estudadas, sendo que o maior efeito foi no uso do bastão elétrico, que diminuiu nos três frigoríficos após o treinamento. Os resultados indicaram que os frigoríficos que realizaram investimentos em mão de obra e instalações, atingiram melhor resposta ao treinamento dos funcionários. / Abstract: The objectives of this research were to study the effects of rational handling training programs on cattle welfare and to test the practical feasibility of the rational handling in the slaughterhouse. The human and cattle behaviours were recorded in three slaughterhouses during two processes: 1) leading cattle from lairage to stunning boxes and 2) stunning cattle. In order to assess the handling procedures during the first process we studied 31, 22 and 18 groups of cattle, before and after the training activity, in three slaughterhouses (MT, GO and SP); in this process five variables were considered, two of them related to human behaviour (the frequency of electric prod and the frequency of inadequate flag use) and three related to cattle behaviour (the frequencies of slips, falls and vocalizations). For the assessment of the stunning process two variables were defined: stunning efficiency (with 336, 475 and 314 cattle observed before and after the training period) and insensitiveness (with 400, 453, and 308 animals observed before and after training). Analysis of variance was used for data related to the process of driving the animals to the stunning box and the Kruskall- Wallis test was used when for the variables related to the stunning process. Significant statistical differences were found among slaughterhouses for the frequencies of slips, falls, use of the electric prod and insensitiveness. Similar results were found when considered the effects of training, being the major effect on the frequency of electric prod use, which dropped down in three slaughterhouses. Inadequate facilities and equipments promoted depreciation on the labour, increasing the frequencies of slips, falls and in the number of sensitive animals after stunning. The results suggested that the slaughterhouses that did invest in people, training, facilities and equipments achieved a better result in the improvement of animal welfare. / Mestre

Human and animal decision-making is known to violate rational expectations in a variety of contexts. Statistical structures of real-world environments may account for such seemingly irrational behavior. In a computerized experiment, 16 capuchins, 7 rhesus monkeys, and 30 humans chose between up to three options of different value. The options disappeared and became available again with different probabilities. Subjects overwhelmingly chose transitively (A>B, B>C, and A>C) in the control condition, where doing so maximized overall gain. However, most subjects also adhered to transitivity in the test condition, where it was suboptimal but led to negligible losses compared to the optimal strategy. Only a few of the capuchins were able to maximize long-term gain by violating transitivity. Adhering to rational choice principles may facilitate the formation of near-optimal decision rules when short- and long-term goals align. Such cognitive shortcuts may have evolved to preserve mental resources.

abstract: Prior research suggests that people ignore evidence that is inconsistent with what they want to believe. However, this research on motivated reasoning has focused on how people reason about familiar topics and in situations where the evidence presented interacts with strongly-held prior beliefs (e.g., the effectiveness of the death penalty as a crime deterrent). This makes it difficult to objectively assess how biased people are in motivated-reasoning contexts. Indeed, recent work by Jern and colleagues (2014) suggests that apparent instances of motivated reasoning may actually be instances of rational belief-updating. Inspired by this new account, the current studies reexamined motivated reasoning using a controlled categorization task and tested whether people assimilate evidence differently when they are motivated to maintain a certain belief versus when they are not. Contrary to earlier research on motivated reasoning, six studies with children and adults (N = 1295) suggest that participants’ motivations did not affect their information search and their beliefs were driven primarily by the evidence, even when the evidence was incongruent with their motivations. This work provides initial evidence for the account proposed by Jern and colleagues. / Dissertation/Thesis / Masters Thesis Psychology 2019

In this dissertation, I consider a range of topics related to the role played by information in modern asset pricing theory. The primary research focus is twofold. First, I synthesize existing research in insider trading and seek to stimulate an expansion of the literature at the intersection of work in the insider trading and financial economics areas. Second, I present the case for using Peter Bossaerts's (2004) Efficiently Learning Markets (ELM) methodology to empirically test asset pricing models. The first chapter traces the development of domestic and international insider trading regulations and explores the legal issues surrounding the proprietary nature of information in financial markets. I argue that, practically, the reinvigoration of the insider trading debate is unfortunate because, in spite of seemingly unending efforts to settle the debate, we are no closer to answering whether insider trading is even harmful, much less worthy of legal action. In doing so, I challenge the conventional wisdom of framing insider trading research as a quest for resolution to the debate. By adopting an agnostic perspective on the desirability of insider trading regulations, I am able to clearly identify nine issues in this area that are fruitful topics for future research. The second chapter studies prices and returns for movie-specific Arrow-Debreu securities traded on the Iowa Electronic Markets. The payoffs to these securities are based on the movies' initial 4-week U.S. box office receipts. We employ a unique data set for which we have traders' pre-opening forecasts to provide the first direct test of Bossaerts's (2004) ELM hypothesis. We supplement the forecasts with estimated convergence rates to examine whether the prior forecast errors affect market price convergence. Our results support the ELM hypothesis. While significant deviations between initial forecasts and actual box-office outcomes exist, prices nonetheless evolve in accordance with efficient updating. Further, convergence rates appear independent of both the average initial forecast error and the level of disagreement in forecasts. Lastly, the third chapter revisits the theoretical justifications for Bossaerts's (2004) ELM, with the goal of providing clear, intuitive proofs of the key results underlying the methodology. The seemingly biggest hurdle to garnering more widespread adoption of the ELM methodology is the confusion that surrounds the use of weighted modified returns when testing for rational asset pricing restrictions. I attack this hurdle by offering a transparent justification for this approach. I then establish how and why Bossaerts's results extend from the case of digital options to the more practically relevant class of all limited-liability securities, including equities. I conclude by showing that the ELM restrictions naturally lend themselves to estimation and testing of asset pricing models, using weighted modified returns, in a Generalized Method of Moments (GMM) framework.

Let 𝑋 be a compact subset of the complex plane and denote by 𝑅𝑝(𝑋) the closure of rational functions with poles off 𝑋 in the 𝐿𝑝(𝑋) norm. We show that if a point 𝑥0 admits a bounded point derivation on 𝑅𝑝(𝑋) for 𝑝 > 2, then there is an approximate derivative at 𝑥0. We also prove a similar result for higher order bounded point derivations. This extends a result of Wang, which was proven for 𝑅(𝑋), the uniform closure of rational functions with poles off 𝑋. In addition, we show that if a point 𝑥0 admits a bounded point derivation on 𝑅(𝑋) and if 𝑋 contains an interior cone, then the bounded point derivation can be represented by the difference quotient if the limit is taken over a non-tangential ray to 𝑥0. We also extend this result to the case of higher order bounded point derivations. These results were first shown by O'Farrell; however, we prove them constructively by explicitly using the Cauchy integral formula.

Ineffective environmental policies pose a problem for municipalities as they strive to create sustainable communities. Improving these policies may establish standard practices that assist municipalities in meeting related environmental goals. Statistics show the municipalities within this study operate at different levels of goal achievement. Little is known, however, about the influences that directly affect the development of environmental policies. The purpose of this study was to determine the ways in which public officials address environmental issues and the factors considered in policy discussions that lead to their decisions. The theoretical framework comprised Sabatier and Jenkins-Smith's advocacy coalition and Arrow's rational choice theory. This phenomenological study explored the experiences of city council members within a region of 10 cities in southern California. Interviews were conducted with a purposeful sample of 5 city council members from 4 adjoining cities, 1 city staff member, and 1 agency representative with knowledge of all 10 cities. Data were analyzed with 3 cycles of coding to identify themes and patterns. Emergent themes included meeting community needs, educating the public, being fiscally responsible, and "doing the right thing." Participants recognized the effect of their personal influences and biases, particularly religious beliefs, on environmental policy decisions, although political affiliation appeared to be unrelated to these biases. The implications for positive social change include informing and educating both public officials and community members about regional environmental issues and their related community needs and goals.

Controversy continues over the use of polygraph testing to deter and detect potential leakers as critics argue that the technique is based on faulty assumptions. The purpose of this descriptive and exploratory research study was to determine whether there was a perceived deterrence effect related to the use of polygraphs between a group of participants who were subjected to a polygraph examination within the past year compared to those who have not experienced a polygraph examination within the same time period. Paternoster and Simpson's, as well as Vance and Siponen's, rational choice models and Bandura's social learning theory served as the theoretical foundation for this study. Specifically, this study assessed groups' perceptions about adhering to security regulations if a polygraph is required, changes in their behavior and attitude, and beliefs about polygraph deterrent effect. Data were obtained through a 15-minute researcher- created survey with a cluster sample of 326 participants. Data were analyzed with a t test to determine whether there was a statistically significant difference between the groups. A factor analysis was also conducted. Results indicated that there was a statistically significant difference (p < .001) between the groups, suggesting that participants perceive a deterrent effect associated with the use of polygraphs as well as a change of behavior and attitude if a polygraph can be randomly administered at work. The implications for positive social change stemming from this study include recommendations to the nation's national security agencies to continue enforcing the polygraph examinations required of certain security personnel and exploring the possibility of expanding the use of such strategies in order to fortify the national intelligence infrastructure.

The creation of new materials is absolutely essential for developing new technologies. However, experimental efforts toward the material discovery are usually based on trial-and-error approach and thus require a huge amount of time and money. Alternatively, computational predictions can now provide a more systematic, rapid, inexpensive, and reliable method for the design of novel materials with properties suitable for new technologies. This dissertation describes the technique of theoretical predictions and presents the results on the successfully predicted and already produced (in some cases) unusual molecules, clusters, nanoparticles, and solids. The major part of scientific efforts in this dissertation was devoted to rationalizing of size- and composition-dependent properties of the materials based on understanding of their electronic structure and chemical bonding. It was shown that understanding relations between bonding and geometric structure, bonding and stability, and bonding and reactivity is an important step toward rational design of new, yet unknown materials with unusual properties. Our findings led to the discovery of the first simplest inorganic double helix structures, which can be used in the design of novel molecular devices. A significant part of this work also deals with the pseudo John-Teller effect, which potentially can be a powerful tool for rationalizing and predicting molecular and solid state structures, their deformations, transformations, and properties. Therefore, the works on the pseudo Jahn-Teller effect presented in this dissertation can be considered the steps toward further generalization and elevation of the pseudo Jahn-Teller effect to a higher level of understanding of the origin of molecular and solid state properties.

Over the past decade, technology has become a prominent feature in our lives. Technology has not only been integrated into our lives, but into the classroom as well. Teachers have been provided with a tremendous amount of technology related tools to educate their students. However, many of these technologically enhanced tools have little to no research supporting their claims to enhance learning. This study focuses on one aspect of technology, the iBook, to complete homework relating to fractions, decimals, and percents in a sixth grade classroom. An iBook is a digital textbook that allows the user to interact with the book through various features. Some of these features include galleries, videos, review quizzes, and links to websites. These interactive features have the potential to enhance comprehension through interactivity and increased motivation. Prior to this study, two pilot iterations were conducted. During each pilot study, students in two sixth grade classrooms used the iBook to supplement learning of fractions, decimals, and percents. A comparison group was not included during either iteration, as the goal was to fine-tune the study prior to implementation. The current study was the third iteration, which included a comparison and treatment group. During this study, three research questions were considered: 1) When learning fractions, decimals, and percents, in what ways, if any, do students achieve differently on a unit test when using an interactive iBook for homework as compared to students who have access to the same homework questions in an online static PDF format? 2) What are students' perceptions of completing homework regarding fractions, decimals, and percents with an interactive iBook compared to students who complete homework in an online static PDF format? 3) In what ways does students' achievement on homework differ when completing homework related to fractions, decimals, and percents from an interactive iBook and a static PDF online assignment? Thirty students from a small charter school in southeast Florida participated in the third iteration of this study. Fifteen students were in the comparison group and fifteen were in the treatment group. Students in both groups received comparable classroom instruction, which was determined through audio recordings and similar lesson plans. Treatment group students were provided with a copy of the iBook for homework. Comparison group students were provided with a set of questions identical to the iBook questions in a static digital PDF format. The comparison group students also had access to the textbook, but not the iBook nor the additional resources available within the iBook. The study took place over three weeks. At the commencement of the study, all students were given a pretest to determine their prior knowledge of fractions, decimals, and percents. Students were also asked to respond to questions regarding typical homework duration, level of difficulty, overall experience, and additional resources used for support. During the study, both classes received comparable instruction, which included mini lessons, manipulative based activities, mini quizzes, and group activities. Nightly homework was assigned to each group. At the conclusion of the study, both groups were given a posttest, which was identical to the pretest. Students were asked identical questions about their homework perceptions as prior to the study, but were asked to respond in regards to the study alone. All participating students completed a questionnaire to describe their perceptions of completing homework regarding fractions, decimals, and percents with an iBook as opposed to static digital PDF homework. Lastly, six students from the comparison group participated in a focus group and six students from the treatment group participated in a separate focus group. Data were collected from the pretest and posttest, pre and post homework responses, collected homework, mini quizzes, audio recordings, teacher journal, questionnaires, and the focus group. No difference in achievement was found between the two groups. However, both groups improved significantly from the pretest to posttest. Based on the questionnaires and focus groups, both groups of students felt they learned fractions, decimals, and percents effectively. However, the questionnaire data showed the treatment group found the iBook more convenient than the comparison group did the textbook. Data from this study provide a baseline for future studies regarding iBooks in middle school mathematics. Although the data show no difference in achievement between the two groups, further studies should be conducted in regards to the iBook. Questionnaire and focus group data suggest, with modifications, students may be more inclined to use the resources within the iBook, which may enhance achievement with fractions, decimals, and percents.

Malaria is more prevalent today and the death toll is on the increase annually. It is one of the leading causes of morbidity and mortality worldwide and most of these deaths are in the poorest regions of the world. About 500 million cases are reported annually with more than 2 million deaths, and most are children. It is the major killer in the tropics and a major public health problem in developing countries and Papua New Guinea (PNG) is no exception. Resistant strains have been reported. This may be enhanced by inappropriate human behaviour in the use of anti-malarial drugs. Human factors include inappropriate prescribing and patient behaviour in using anti-malarial drugs. Despite the establishment of the standard treatment guidelines for malaria in PNG, three out of every four patients have chloroquine-resistant falciparum malaria and malaria remains a major health problem. The aim of this study was to evaluate the influence of an education program on patients carers' understanding and effective use of anti-malarial drugs for the treatment of uncomplicated malaria in children in general health clinics in PNG. The trial design involved a pre-post intervention study with a control group. The study was undertaken in the National Capital District. Papua New Guinea using one Clinic as the intervention site and another as the control site. The two clinics were similar in characteristics as confirmed in the study by demographic data where there were no significant differences observed. The data collection took placed over the period February to April 2002. It included observation of drug provision at study sites and interviews of patient carers on the first day at the clinic and a follow up seven days later. Three questionnaires were developed to evaluate the process and outcomes of malaria drug treatment in the above health facilities. / Prescribing data were collected from prescriptions and patient carers' interviewed prior to the intervention program. Following the provision of drug information to patient carers. similar drug information and compliance questioning was undertaken. Differences in the pre-post elements of the study and in the control group over the study period were evaluated using Chi-Squared, Kruskal-Wallis, Fisher's Exact or Student's t-tests as appropriate. In excess of 100 patients in the pre- and in the post intervention phases were evaluated for their understanding and effective use of the anti-malarial drugs. In addition, 100 clients were in the control group at another clinic. Patients had attended the clinic up to 8 times in the previous year with a median of 2 visits. Amodiaquine, Fansidar, albendazole and paracetamol made up a total of 60% of the drugs prescribed. The use of medicines was strongly supported with 94.4% indicating no problems with the medication. Only 3% of patients received herbal or local remedies for malaria treatment. 1n patients 10 years or less or their carers, it was found, there was a significant improvement in the carers understanding of the medications. There was a statistically significant improvement in patient outcomes from 57.9% to 92.3% reported as cured following the intervention program. The study has also identified low levels of appropriate administration of antibiotic suspensions in children by patient carers. / For example, incorrect responses recorded for amoxycillin suspension were 80.8% (143). Septrim tablets 92% (23), Septrim suspension 86% (123), erythromycin suspension 100% (26), and chloramphenicol suspension 84.4% (38). In this study the face to face (one-to-one) education program was used to influence patient carers understanding and effective use of drugs. The intervention program involved advising, informing, encouraging, and counselling the patient carers verbally on the appropriate and effective use of medicines. The verbal message was reinforced by a suitable label typed in English and Pidgin-English where instructions were clear, simple and unambiguous. The label was then attached to the envelopes or containers containing the drugs. On feedback, the information on the understanding and effective use of drugs was re-emphasized to the carers to reinforce their understanding for future references. Results showed that the intervention program made an impact in improved patient carers understanding and effective use of drugs and children's health outcomes. In conclusion, it is evident that a patient intervention program designed to improve the dosages and frequency of administration of anti-malarial drugs in PNG had no statistically significant outcome. This may be because the current level of understanding was quite high (>70%) and the study experienced a ceiling effect. However, as shown in the results, the patient carers understanding on the appropriate and effective use of drugs was lower during the pre-intervention and control group. / When compared clinic-pre with clinic-post, there was a significant difference (P < 0.05) in the cured group and the improved cure rate increases from 57.9% to 92.3%. When compared control pre with control post groups, there was no significant difference (P > 0.05) in the cured group. Therefore, the study identified an improvement in patient outcomes with respect to malaria. Hence. the simple intervention program in influencing patient carers understanding of the appropriate and effective use of medications led to a marked improvement in patient outcomes.