Avicenna is undoubtedly one of the outstanding scientists and perhaps the most prominent one in the history of Islamic-Iranian civilization. After a lifetime of trying to describe, explain and complete the Greek intellectual heritage, Avicenna admitted to have achieved a realm of philosophy which he construed as "oriental philosophy''. Avicenna's oriental logic can be defined and explained according to the very oriental philosophy in terms of method and content. The issue is what the characteristics of this oriental philosophy and particularly, (...) oriental logic is. Since there is not direct and abundant evidence in "surface" as documents, we try to reach the conclusion by a range of indirect and limited evidences in "depth". In this paper, two different and yet consistent features of Avicenna's oriental logic are inferenced and introduced. In the first sense, oriental logic can refer to a range of "non-Aristotelian innovative and established systems" in the East, and in the second aspect, it can be an oriental horizon and dawn to establish a "fuzzy logic" which is considered today multi-valued and infinite-valued logic. (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)

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)

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)

Discovering the differences between the various systems of modal logics was one of the advantages of inventing Kripke semantics. One of the most obvious examples is interpreting the necessity of provability in provability logic. According to Boolos in The Logic of Provability, by discovering this logic, we can say that the understanding of new issues in the field of argument was opened. In this paper, with a formal approach and with a descriptive-analytical and comparative method, the axiomatic propositional systems of (...) the GL, Grz, and H, and their possible world semantics based on Kripke semantics are studied, as well as the sequent calculus of GL (in Peano arithmetic) and GLS (in the standard model) were introduced. Finally, the meta-theorems of soundness, consistency, and completeness of the GL were interpreted and proved. (shrink)

Modal Logic’s theorems and rules are valid in possible worlds but Relevant Logic’s theorems and rules are valid, respectively, in logical worlds and situations. Robert Meyer in 1974 removed this asymmetry between the theorems and the rules of Relevant Logic by establishing a logical system, whose theorems and rules are valid in all situations. Introducing a new kind of truth and falsity operators, the authors in this article sketch a logical system defined on the basis of Relevant Logic. Such a (...) system can not only preserve symmetry, but also remove some inconsistency between Modern Classical Logic and Relevant Logic, because the latter, like the former, puts possible worlds as a criterion for validity. (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)

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)

According to the dominant methodology of contemporary analytic philosophy, philosophical intuitions play evidential roles for or against philosophical theories. However, intuitions can play the supposed role successfully only if they are justified. Phenomenalism, as one of the proposed theories that aims to explain and argue for justifiedness of intuitions, claims that intuitions are justified because they have a certain phenomenal character: Intuitive contents seem to be true. Furthermore, it argues that sensory perception has similar phenomenal character, in virtue of which (...) it is justified. This analogy confirms the justifiedness of intuitions. In this paper, however, we shall argue that there is at least one another epistemological feature of sensory perception which is relevant to its justifiedness, that is self-correction. Although sensory perception is highly self – correcting, intuitions normally resist self – correction, even in the case of further recalcitrant evidences. The disanalogy threatens phenomenalist analogy for justifiedness of intuitions. (shrink)

It is widely supposed that methodological naturalism, understood as a thesis about the methodology of science, is metaphysically neutral, and that this in turn guarantees the value-neutrality of science. In this paper we argue that methodological naturalism is underpinned by certain ontological and epistemological assumptions including evidentialism and the causal closure of the physical, adoption of which necessitates commitment to metaphysical naturalism.

It is widely supposed that methodological naturalism, understood as a thesis about the methodology of science, is metaphysically neutral, and that this in turn guarantees the value-neutrality of science. In this paper we argue that methodological naturalism is underpinned by certain ontological and epistemological assumptions including evidentialism and the causal closure of the physical, adoption of which necessitates commitment to metaphysical naturalism.

In this study, we shall assess the claim concerning the negative effect of sin and positive effect of grace on proper function of reason and cognitive faculties through the lens of the Calvinist tradition and the Reformed Epistemology. Although the noetic effect of sin has already been discussed probably by tracing the role of the non-epistemic factors in acquiring knowledge in general, approaching the issue by focusing on ‘scientific knowledge’ is novel and, to the best of my knowledge, has not (...) been attempted before. This study will be developed by means of an evaluation of Stephen Moroney’s project. Through a critical survey of the views of a number of prominent Christian theologian, he tries to develop a model for the cognitive influence of sin. In our review of his work from the canons of Critical Rationalism, we shall try to show that Moroney's conclusions are inconsistent with his explanation of the effect of sin on the natural sciences. Our main arguments are as follows: what Moroney describes as scientific knowledge from a Christian point of view is more a technological awareness rather than scientific knowledge proper. Furthermore, it is the scientist who is affected by sin and not his scientific claim. (shrink)

Al-Najjar and Weinstein propose to scrutinize the implications of recent theories of ambiguity in dynamic settings. They conclude that such implications are so unreasonable as to cast doubts on the legitimacy of the theories under consideration. The present paper argues that the seemingly unreasonable implications highlighted by Al-Najjar and Weinstein can be understood as the result of basic trade-offs that arise naturally in the presence of ambiguity. In particular, Al-Najjar and Weinstein are uncomfortable with the possibility that (...) an ambiguity-averse individual may reject freely available information; however, this phenomenon simply reflects a trade-off between the intrinsic value of information, which is positive even in the presence of ambiguity, and the value of commitment. (shrink)

The selection of nineteenth-century Arabic texts on medical education, medicine and health demonstrates the significant link between the revival of the Arabic language and literary culture of the nineteenth century, known as thenahda, and the introduction of medical education to the Ottoman Empire. These include doctor Ibrahim al-Najjar's autobiographical account of his studies in Cairo (1855), an article by doctor Amin Abi Khatir advising on the health and care of infants (1877), questions and answers in the major popular Arabic (...) journalsal-Hilalandal-Muqtataf(1877–1901) and an article about a new tuberculosis treatment by doctor Anisa Sayba‘a (1903). Taken together they contribute to our understanding of the bottom-up production, reproduction and reception of global scientific knowledge, as well as to a social and intellectual history of science. We argue that the engagement with science during thenahdawas a multi-vocal and dialogical process, in which doctors and patients, journal editors and their readers, negotiated the implications of scientific knowledge for their own lives and their own society. The texts of the original documents and their translations can be found in the supplementary material tab athttps://doi.org/10.1017/S0007087422000413. (shrink)

Human UDP‐glucuronosyltransferases (UDPGTs) are a family of enzymes which detoxify many hundreds of compounds by their conjugation to glucuronic acid, rendering them both harmless and more water soluble, hence, excretable. The level of expression of each UDPGT isoform in the body is the result of interplay between temporal, tissue‐specific and environmental regulators. This complexity contributes to the difficulty in predicting the metabolic fate of compounds.Genetic defects and polymorphisms affecting individual isoform activities have deleterious and potentially lethal effects, as exemplified by (...) the severe hyperbilirubinaemia observed in Crigler‐Najjar Syndrome. Such severe genetic defects in bilirubin glucuronidation are obvious candidates for antenatal screening and gene therapy. (shrink)

Are foundations of models of ambiguity-sensitive preferences too flawed to be usefully applied to economic models? Al-Najjar and Weinstein (2009) say such is indeed the case. In this paper, first, we point out that many of the key arguments by Al-Najjar and Weinstein do not apply to quite a few of the ambiguity preference models of more recent vintage, and therefore to that extent do not undermine the foundational aspects or applicability of ambiguity models in general. Second, we (...) argue the focus in that paper on Ellsberg examples is an overly narrow concern; the Ellsberg examples have their uses but they are not the best context to understand why reasonable real-world agents may find acting in an ambiguity-sensitive manner normatively or prescriptively appealing. Finally, normative considerations aside, we submit that Al-Najjar and Weinstein are unduly dismissive of the power of such preferences to provide illuminating positive analyses of economic phenomena. (shrink)