Parkinson's Disease (PD) is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. The symptoms generally come on slowly over time. Early in the disease, the most obvious are shaking, rigidity, slowness of movement, and difficulty with walking. Doctors do not know what causes it and finds difficulty in early diagnosing the presence of Parkinson’s disease. An artificial neural network system with back propagation algorithm is presented in this paper for helping doctors in identifying (...) PD. Previous research with regards to predict the presence of the PD has shown accuracy rates up to 93% [1]; however, accuracy of prediction for small classes is reduced. The proposed design of the neural network system causes a significant increase of robustness. It is also has shown that networks recognition rates reached 100%. (shrink)

Based on case studies of religious Muslim and Christian family firms operating in a religiously diverse country, we explain the multiplicity of family, business, religion, and community logics in the family firm. In particular, we give attention to the religion logic and how it interacts with other logics when family firms are considering ethical issues. We show that religion has a rule-based approach in Muslim family firms and a principle-based approach in Christian family firms. We also draw attention to the (...) fluidity characteristic of the religion logic, through which family firms interpret the role of religion among other logics in influencing ethical decisions. Our study advances institutional logics literature in highlighting the plurality between and within logics in family firms, and contributes to the growing recognition of the influence of religious beliefs on the ethical behaviors of family firms. (shrink)

Henri Poincaré était réputé être un mathématicien hostile à la rigueur, aussi bien dans sa pratique mathématique que dans ses réflexions philosophiques. Or, des éléments indiquent que Poincaré se basait implicitement sur une conception personnelle de la rigueur mathématique, et qui correspondrait à sa pratique des mathématiques. Nous proposons donc de caractériser ce que serait cette conception. Tout d’abord, nous observons donc son rap­port à la rigueur dans ses travaux en topologie, à partir d’exemples tirés du mémoire Analysis Situs de (...) 1895 [Poincaré 1895]. Ensuite, nous étudions pour quelles raisons Poincaré revendique son opposition à certaines normes de ri­gueur. Enfin, nous développons une conception « poincaréenne » de la rigueur mathématique. (shrink)

In the past two decades, especially after the financial crisis of 2007–09, the literature for examining the availability of integration between the stock exchanges in developed and developing markets has grown. The importance of this topic stems from the significant implications of the linkage between exchange markets on various decisions taken by interested parties, such as policymakers and investors, in the decisions for portfolio diversification. This study examines the relationship between a developing stock exchange index, Amman Stock Exchange Index, and (...) the number of international indices, including S&P 500, NASDAQ, Nikkei, DAX, CAC, and HSI for 2008-2019. To validate the availability of the linkage between the indices, the author includes various tests of a correlation coefficient, stepwise regression analysis, and artificial neural network. Despite the results indicating that the ANN is more efficient than linear regression in investigating the availability of the relationship between ASEI and international indices, stepwise regression and neural network support this relationship. Furthermore, ANN results revealed that the S&P 500 index and year have the most substantial relationship with ASEI. Our research is theoretically and practically important; policymakers and investors can benefit from our findings. Future studies may explore the effect of different international stock market indices on ASEI or other developing markets. Further studies can use macroeconomic factors to build prediction models for stock market indices. (shrink)

در اين كتاب، جدالي سهمگين و در عين حال جذاب و بي مصالحه و سازش بين انسان "ميرا" و خداي "ناميرا" در ميگيرد. گفتگو ها و پرسش ها و پاسخ ها، آنچنان پربار و تجسم انگيزست كه خواننده بي قرارانه در انتظار پايان محاكمه ، فصل هاي كتاب را ميخواند و حضور خود را در جمع فرزانگان و جدال نويسنده و خدا احساس ميكند. ketab - sherkat ketab - شرکت کتاب - ketab.com - ketab corp.

A long tradition suggests a fundamental distinction between situations of risk, where true objective probabilities are known, and unmeasurable uncertainties where no such probabilities are given. This distinction can be captured in a Bayesian model where uncertainty is represented by the agent’s subjective belief over the parameter governing future income streams. Whether uncertainty reduces to ordinary risk depends on the agent’s ability to smooth consumption. Uncertainty can have a major behavioral and economic impact, including precautionary behavior that may appear overly (...) conservative to an outside observer. We argue that one of the main characteristics of uncertain beliefs is that they are not empirical, in the sense that they cannot be objectively tested to determine whether they are right or wrong. This can confound empirical methods that assume rational expectations. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Feminist Studies 42, no. 3. © 2016 by Feminist Studies, Inc. 757 Ramzi Fawaz How to Make a Queer Scene, or Notes toward a Practice of Affective Curation Let me begin with two stories. In spring of 2013 I organized a semester -long, undergraduate film series at George Washington University titled “Acting Up: Queer Film and Video in the Time of AIDS.” At semester ’s end, after participants (...) had watched nine films about the AIDS epidemic —among them classic AIDS documentaries, activist videos, and mainstream Hollywood productions—I chose to conclude the series with the 1991 documentary Silverlake Life: The View from Here. Silverlake Life documents a year in the lives of Tom Joslin and Peter Friedman, a gay couple living in Los Angeles in the late 1980s who share an HIV diagnosis. At the time I made the selection, I did not realize that Silverlake Life documents one of the most devastating lived experiences of the AIDS epidemic ever filmed: during the course of taping, Tom, the initial documentarian, becomes gravely ill and dies on camera while lying in bed after a week-long convalescence. Reviewing this scene before our official screening, I found myself overwhelmed by intense feelings of anxiety. On the one hand, I felt a deep responsibility to expose my students to the aesthetic and political work of this daring documentary, and on the other, to protect them from witnessing forms of suffering that might traumatize them more than illuminate the social history of AIDS. When we convened to discuss the film, many students expressed how devastated they were by what they had seen. Rather than shutting down conversation, however, the depth and intensity of their viewing 758 Ramzi Fawaz experience galvanized an extraordinary conversation about the ethics of documenting the lives (and deaths) of people with AIDS. What they witnessed expanded the very possibilities of what they could feel about issues of collective concern such as the AIDS epidemic, while also transforming their ability to reconsider productive encounters with pain, suffering, and trauma. In my fear of negatively impacting students, I had forgotten both their capacity to respond with generosity and openness to traumatic images as well as my own careful curation of nine previous films and the attendant conversations held around them, which had laid a groundwork of shared affective openness to difficult content. One year later, as a newly minted assistant professor of English at the University of Wisconsin, Madison, I taught a large lecture course on American fantasy. In the fourth week of class, I screened The Wizard of Oz as part of a unit on the Hollywood musical, and I devoted a lecture to a gay and lesbian interpretation of this classic film. I highlighted the movie ’s camp aesthetics, its gender play and drag elements, and its derailing of traditional heterosexual romance plots. As a gay man well versed in queer media scholarship, I took it for granted that this was a pleasurable but patently obvious interpretation of a film that I assumed most people recognized for its exuberant and visually spectacular gayness. Yet as I spoke, I sensed a visceral tension build in the room. Half the students seemed mesmerized by the possibility of a queer aesthetic underlying the movie, while the other half frowned at me in silent fury, outraged by my daring to desecrate the presumed innocence of a childhood escape. The seething resentment of this latter group was confirmed for me when, weeks later, my teaching assistants disclosed that numerous students had expressed feelings of anger and frustration that my interpretation had “ruined” their pleasure in a beloved film of their youth. This circumstance prompted me to confront my students the following week: microphone in hand, I strolled the room and asked students to account for their feelings of discomfort. I wanted them to explain why their personal pleasure in The Wizard of Oz hinged on the diminishment of alternative viewing possibilities, including unexpected queer delights in transparently “straight” narratives. Students were clearly jolted out of their complacent belief that no one would hold them accountable for their perspective, or that their view might have political or ethical consequences: yet the resistance of some to being called... (shrink)

We provide a simple model to measure the impact of aggregate risks. We consider agents whose rankings of lotteries over vectors of outcomes satisfy expected utility and separability. Such rankings are characterized in terms of aggregative utilities that measure sensitivity to aggregate uncertainty in a straightforward way. We consider applications to models of product variety, portfolio choice, and public attitudes towards catastrophic risks. The framework lends support to precautionary measures that penalize policies for exposure to correlation. The model rationalizes a (...) number of behavioral and policy patterns as attempts to hedge against aggregate uncertainty. (shrink)

We focus on two aspects: First, we argue that it is necessary to include implicit forgiveness as an additional adaptive behavioral option to the perception of interpersonal transgressions. Second, we present one possible way to investigate the cognitive-affective underpinnings of revenge and forgiveness: a functional MRI (fMRI) approach aiming at integrating forgiveness and revenge mechanisms into a single paradigm.

We provide a critical assessment of the ambiguity aversion literature, which we characterize in terms of the view that Ellsberg choices are rational responses to ambiguity, to be explained by relaxing Savage's Sure-Thing principle and adding an ambiguity-aversion postulate. First, admitting Ellsberg choices as rational leads to behaviour, such as sensitivity to irrelevant sunk cost, or aversion to information, which most economists would consider absurd or irrational. Second, we argue that the mathematical objects referred to as “beliefs” in the ambiguity (...) aversion literature have little to do with how an economist or game theorist understands and uses the concept. This is because of the lack of a useful notion of updating. Third, the anomaly of the Ellsberg choices can be explained simply and without tampering with the foundations of choice theory. These choices can arise when decision makers form heuristics that serve them well in real-life situations where odds are manipulable, and misapply them to experimental settings. (shrink)

BackgroundA large number of anxious and concerned people refer to health centers during the COVID-19 pandemic, increasing the workload of healthcare workers and violence against these professionals. The present study aimed to estimate the prevalence of workplace violence against HCWs during the COVID-19 pandemic.MethodsThis systematic review and meta-analysis was conducted via searching in databases such as Scopus, PubMed, and Web of Science, and observational articles reporting the prevalence of WPV against HCWs were selected. Heterogeneity between the studies was assessed using (...) Cochran's Q test. A random-effects model was used to estimate the prevalence of WPV. Data analysis was performed in the Stata software version 16.ResultsIn the initial search, 680 articles were identified and screened based on the Preferred Reporting Items for Systematic Review and Meta-Analysis steps. In total, 17 studies with a sample size of 17,207 HCWs were analyzed. The total prevalence of violence was estimated at 47%. In addition, the prevalence of physical and psychological violence was 17% and 44%, respectively. The prevalence of WPV was higher among physicians compared to other HCWs. The WPV in the America and Asia was 58 and 44%, respectively.ConclusionAccording to the results, WPV against nurses is prevalent during the COVID-19 pandemic, and intervention measures are required to protect the nursing staff against such violence. (shrink)

My main argument is that the advice offered to experimental psychologists by Hertwig & Ortmann overlooks fundamental differences between the goals of researchers in psychology and economics. Furthermore, it is argued that the reduction of data variability is not always an end to be sought by psychologists. Variability that originates in individual differences constitutes valuable data for psychological research.

Relativizing Newton" is a first step towards a simple and beautiful theory of everything. The theory, termed "Information Relativity" (IR) takes a novel approach to physics that overlooks all post-Newtonian physics. It stands on the shoulders of Newtonian dynamics, but modifies it by accounting for the time-travel of information from one reference-frame to another, a fact which somehow was ignored by Galileo Galilee and Isaac Newton, and which remained ill-treated by the all post-Newtonian theories, including Einstein's relativity and quantum theories. (...) Except for the aforementioned correction of classical physics, IR has no axiomatic presumptions, nor arbitrary free parameters. Astonishingly, accounting for the aforementioned delays in information results in a set of simple and beautiful transformations, which explain and predict a great deal of physical phenomena. Most importantly, IR's transformations reveal the mysteries of dark matter, dark energy, and gravity. They also provide a unifying platform for the physics of the too-big (astrophysics and cosmology), and the too-small (small particles dynamics and quantum mechanics). The phenomena explained and predicted successfully by IR include The Michelson-Morley's null-result, "time-dilation" of decaying muons, the neutrino velocities measured by OPERA and other collaborations, particle diffraction in the double-slit experiment, Sagnac Effects, the quantization of orbits in Bohr's hydrogen atom, entanglement, quantum criticality, confinement, asymptotic freedom, solar light bending, gravitational redshift, the Pioneer anomaly, dark matter in galaxies, and the Schwarzschild's black hole. (shrink)

A constantly changing social reality means economic theories, even if correct today, need to be constantly revised, updated, or abandoned. To maintain an up-to-date understanding of its subject matter, economists have to continuously assess their theories even those that appear to be empirically corroborated. Economics could gain from a method that describes and is capable of generating novel explanatory hypotheses. A pessimistic view on the existence of such a method was famously articulated by Karl Popper in The Logic of Scientific (...) Discovery. He wrote ‘there is no such a thing as a logical method of having ideas or a logical reconstruction of this process.’ Herbert Simon responded to Popper and argued the opposite, namely, that there is a model of discovery and its name is abduction. Simon acknowledges his debt to Charles Peirce – the first modern logician to explicitly formulate a theory of abduction – and explains that abduction is a model of discovery that works as a problem-solving heuristic encoded.. (shrink)

Kahneman, Knetsch, and Thaler's [. Experimental tests of the endowment effect and the Coase theorem. Journal of Political Economy, 98, 1325–1348] experiment on the Coase theorem disrupted a s...

The backward induction controversy in game theory flared up and then practically ended within a decade – the 1990s. The protagonists, however, did not converge on an agreement about the source of the controversy. Why was this the case, if opposing sides had access to the same modelling techniques and empirical facts? In this paper I offer an explanation for this controversy and its unsettled end. The answer is not to be found in the modelling claims made by the opposing (...) protagonists, but in the tacit metaphors they operate under. Aristotle defined metaphor as giving a 'thing a name that belongs to something else' (Poetica, 1457b). The meaning of metaphors has not changed much since then – in contrast to models which are comparatively new, and still not well-understood, scientific tools. The controversy of backward induction in game theory provides a test bed for the explanatory power of metaphors. This paper frames the controversy in terms of metaphor choice to provide a common framework for the protagonists. This results in the identification of three different domains – mathematical logic, game theory and the world – each connected to the other via different metaphors. The controversy around backward induction is placed in, and tentatively explained by, this framework. (shrink)

Background With the huge number of patients who suffer from chronic and incurable diseases, medical scientists continue to search for new curative methods for patients in dire need of treatment. Interest in stem cells is growing, generating high expectations in terms of the possible benefits that could be derived from stem cell research and therapy. However, regardless of the hope of stem cells changing and improving lives, there are many ethical, religious, and political challenges and controversies that affect the research, (...) and mandated to establish ethical guidelines and regulations. In Saudi Arabia, key stakeholders play an active role in discussing the ethics of stem cell research and therapy. The focus of the study was to explore professionals’ perceptions related to the ethical challenges of using stem cells in research and treatment in Saudi Arabia. Results A qualitative research study was conducted to explore and describe the perceptions of 25 professionals employed at different tertiary hospitals in the various regions of Saudi. A thematic analysis was performed to search for and identify the most significant perceptions shared by the participants. Four themes were generated based on the ethical challenges of four areas related to stem cell use, including forbidden and permitted sources of stem cells, informed consent, beneficence, and ethical regulations and guidelines. Conclusion The study identified that there is a growing need to advance the knowledge, education, and awareness related to stem cell research and treatment in Saudi Arabia. (shrink)

The pioneering contributions of Bewley, Gilboa and Schmeidler highlighted important weaknesses in the foundations of economics and game theory. The Bayesian methodology on which these fields are based does not answer such basic questions as what makes beliefs reasonable, or how agents should form beliefs and expectations. Providing the initial impetus for debating these issues is a contribution that will have the lasting value it deserves.

Background Despite the implementation of codes and declarations of medical research ethics, unethical behavior is still reported among researchers. Most of the medical faculties have included topics related to medical research ethics and developed ethical committees; yet, in some cases, unethical behaviors are still observed, and many obstacles are still conferring to applying these guidelines. Methods This cross-sectional questionnaire-based study was conducted by interviewing randomly selected 331 Lebanese physicians across Lebanon, to assess their awareness, knowledge and attitudes on practice regarding (...) international and national research ethics guidelines and scientific misconduct and misbehaviors. Results Our results revealed that although majority of participants declared familiar with ethical principles governing research that involves human subjects, the overall mean score achieved on their knowledge questions was 46%. Only 27.4% are aware of the presence of the Lebanese National Consultative Committee on Ethics, with only half of them aware of its functions and only 25.7% know about the charter of ethics and guiding principles of scientific research in Lebanon. Significant higher levels of research ethics knowledge were recorded among Ph.D. degree-holding subjects, higher university positions as in professors, research ethics trainings-attendees, and physicians with prior research experience. A significant correlation was observed between knowledge of research ethics principles and positive attitudes toward research ethics principles. Noteworthy, we found that more than one third of participants have reported witnessing scientific misconduct and misbehaviors at some period of their careers. Conclusions The presence of low mean awareness levels regarding research ethical principles among the study population of physicians and high levels of perception of scientific misconduct raises concern on the importance of implementing proper training for physicians on research ethics. (shrink)

Impostor syndrome or Impostor phenomenon is a belief that a person thinks their success is due to luck or external factors, not their abilities. This psychological trait is present in certain groups like women. In this paper, we propose a neutrosophic trait measure to represent the psychological concept of the trait-anti trait using refined neutrosophic sets. This study analysed a group of 200 undergraduate students for impostor syndrome, perfectionism, introversion and self-esteem: after the COVID pandemic break in 2021. Data labelling (...) was carried out using these neutrosophic trait measures. Machine learning models like Support Vector Machine(SVM), K-nearest neighbour (K-NN), and random forest were used to model the data; SVM provided the best accuracy of 92.15%. (shrink)

The Book of Noble Character is an anthology of quotations suitable for social and literary discourse. The work is introduced by an analytical study discussing the attribution of the work, the related genres, and the unique manuscript of the text.

In this paper, we present a deterministic time discrete mathematical model based on multiregional periodic matrices to describe the dynamics of Sardina pilchardus in the Central Atlantic area of the Moroccan coast. This model deals with two stages (immature and mature) and three spatial zones where sardines are supposed to migrate from one zone to another. The population dynamics is described by an autonomous recurrence equation N(t + 1) = A.N(t), where A is a positive matrix whose entries are estimated (...) using data collected during biannual acoustic surveys carried out from 2001 to 2003 onboard the Norwegian research vessel “Dr Fridtjof Nansen”. The dominant eigenvalue λ of A that gives the long-term growth rate of fish population is smaller than one. This agrees with the stock decrease observed in the data collected. We show that λ is highly sensitive to the recruitment rate and much less sensitive to the reproduction rate. These results can clearly be used to define an efficient scenario in order to fight for instance against a stock decrease. (shrink)

In this paper, we present a deterministic time discrete mathematical model based on multiregional periodic matrices to describe the dynamics of Sardina pilchardus in the Central Atlantic area of the Moroccan coast. This model deals with two stages (immature and mature) and three spatial zones where sardines are supposed to migrate from one zone to another. The population dynamics is described by an autonomous recurrence equation N ( t + 1) = A . N ( t ), where A is (...) a positive matrix whose entries are estimated using data collected during biannual acoustic surveys carried out from 2001 to 2003 onboard the Norwegian research vessel “Dr Fridtjof Nansen”. The dominant eigenvalue λ of A that gives the long-term growth rate of fish population is smaller than one. This agrees with the stock decrease observed in the data collected. We show that λ is highly sensitive to the recruitment rate and much less sensitive to the reproduction rate. These results can clearly be used to define an efficient scenario in order to fight for instance against a stock decrease. (shrink)

Philosopy; Avicenna, 980-1037; criticism.