We report on the simultaneous determination of complementary wave and particle aspects of light in a double-slit type “welcher-weg” experiment beyond the limitations set by Bohr’s Principle of Complementarity. Applying classical logic, we verify the presence of sharp interference in the single photon regime, while reliably maintaining the information about the particular pinhole through which each individual photon had passed. This experiment poses interesting questions on the validity of Complementarity in cases where measurements techniques that avoid Heisenberg’s uncertainty principle and (...) quantum entanglement are employed. We further argue that the application of classical concepts of waves and particles as embodied in Complementarity leads to a logical inconsistency in the interpretation of this experiment. (shrink)

Amyloid beta precursor protein (APP) and prion protein (PrP) are cell membrane elements implicated in neurodegenerative diseases. Both proteins undergo endoproteolysis. Evidence is adduced from the literature hinting that the process in the two proteins could be related, their functions may overlap and their distributions coincide. It is proposed that PrP catalyses its own cleavage, the C-terminal fragment functions as an α secretase and the N-terminal segment chaperones the active site; the α secretase releases anticoagulant and neurotrophic ectodomains from APP. (...) The proposals explain some features of spongiform encephalopathies. BioEssays 23:456–462, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

The purpose of this study is to propose and develop an intelligent e-learning system based on advanced document management techniques at Al-Quds Open University. In this article, we focus on a case using e-mail contents as supplement educational materials at QOU. We describe how the interactive classification system based on concept hierarchy can simplify this task. This system provides the functions to index, classify, and retrieve a collection of e-mail messages based on user profiles. By automatically indexing e-mail messages using (...) our E-mail Classification System for e-Learning, instructors and/or students can easily find their messages and find the topics. The test results of our system evaluation showed that a good classification quality has been achieved, with a precision of 77.4%, recall of 90%, and F-measure of 82.8. (shrink)

ABSTRACT Iran is the only Muslim country that has legislation on embryo donation, adopted in 2003. With an estimated 10–15% of couples in the country that are infertile, there are not any legal or religious barriers that prohibit an infertile couple from taking advantage of Assisted Reproductive Technologies (ARTs). Although all forms of ARTs available in Iran have been legitimized by religious authorities, there is a lack of legislation in all ARTs except embryo donation. By highlighting ethical issues in embryo (...) donation, the paper presents a critical review of the Act of Embryo Donation in Iran. The paper argues that the Act does not provide enough safeguards for the future child and assurance for the safety of the donated embryos. It also does not restrict embryo donation to surplus embryos from infertile couples and is silent about the number of embryos that could be donated by each couple as well as the number of recipients for donated embryos by a couple. The Act is also silent about the issues of genetic linkage (nasab) and heritage which are challenging issues, especially in a conservative Islamic society. As a result, the future child may not inherit from their birth parents, as it is not required by the Act, or from the genetically related parents under the anonymity policy. Finally there is no standard national protocol or guidelines to evaluate the safety of the donated embryos. The paper concludes that despite its benefits, the Act lacks clarity, and it is subject to misunderstanding and confusion. (shrink)

We present a fully relativistic formulation of the theory of electron-nucleus Bremsstrahlung, within the context of self-field QED, as advanced recently by Barut and his co-workers. The Bremsstrahlung emission cross-section, reported here, is also shown to reduce to the standard correct nonrelativistic limit, in the dipole approximation.

Within the context of the time-reversed S-matrix approach to photoionization, and employing a recently proposed strong-field solution to the Schrödinger equation, analytic expressions for the atomic photoionization rates are obtained here without using the dipole approximation. We show that the absorbed photon momentum shows up as a forward-directed momentum component for the photoelectron. All the expressions reported in this work have the correct limits when the dipole approximation is used.

Iran is the only Muslim country that has legislation on embryo donation, adopted in 2003. With an estimated 10–15% of couples in the country that are infertile, there are not any legal or religious barriers that prohibit an infertile couple from taking advantage of Assisted Reproductive Technologies (ARTs). Although all forms of ARTs available in Iran have been legitimized by religious authorities, there is a lack of legislation in all ARTs except embryo donation. By highlighting ethical issues in embryo donation, (...) the paper presents a critical review of the Act of Embryo Donation in Iran. The paper argues that the Act does not provide enough safeguards for the future child and assurance for the safety of the donated embryos. It also does not restrict embryo donation to surplus embryos from infertile couples and is silent about the number of embryos that could be donated by each couple as well as the number of recipients for donated embryos by a couple. The Act is also silent about the issues of genetic linkage (nasab) and heritage which are challenging issues, especially in a conservative Islamic society. As a result, the future child may not inherit from their birth parents, as it is not required by the Act, or from the genetically related parents under the anonymity policy. Finally there is no standard national protocol or guidelines to evaluate the safety of the donated embryos. The paper concludes that despite its benefits, the Act lacks clarity, and it is subject to misunderstanding and confusion. (shrink)

In this article, I developed the CSR-19 scale to assess the perceptions company executives have of CSR actions during the COVID-19 pandemic and to conceptualize the economic, legal, social, and environmental aspects of CSR actions as a high-order construct. This paper's findings suggest that the legal, environmental, and social aspects of CSR actions are being perceived to positively contribute to companies' CSR actions, but the economic aspect of CSR actions is deemed to contribute negatively to companies' CSR actions. The 16-item (...) CSR-19 scale shows strong evidence of reliability as well as content, convergent, and discriminant validity in a sample of 211 Jordanian companies. Managerial implications and suggestions for applying the CSR-19 scale in future research are presented. (shrink)

The paper describes the design of an intelligent tutoring system for teaching Introduction to Computer Science-a compulsory curriculum in Al-Azhar University of Gaza to students who attend the university. The basic idea of this system is a systematic introduction into computer science. The system presents topics with examples. The system is dynamically checks student's individual progress. An initial evaluation study was done to investigate the effect of using the intelligent tutoring system on the performance of students enrolled in computer science (...) curriculum at Al-Azhar University, Gaza. The results showed a positive impact on the evaluators. (shrink)

The aim of this research was to set a proposed strategy for achieving institutional integrity in the University of Ha’il (UoH), Saudi Arabia, in the light of the National Centre of Assessment and Academic Accreditation (NCAAA) Standards. This was accomplished through acknowledging theoretical and philosophical frameworks of institutional integrity and their obstacles in university educational institutions and displaying the institutional standards of the National Centre of Assessment and Academic Accreditation. This research depended on the descriptive method and employed the (SWOT) (...) Analysis to examine the status of UoH. The research confirmed that UoH implemented policies to support institutional values and research integrity. Furthermore, the university has employed mechanisms and procedures for institutional values and mentorships and has a declared policy for disclosure of information and access of necessary information to all beneficiaries. The university needs to set some mechanisms in place to ensure fairness and equality in performance assessments or to implement integrity standards in processes of employment and recruitment. (shrink)

Ambiguity affects decisions of people who exhibit a distaste of and require a premium for dealing with it. Do ambiguity-neutral subjects completely disregard ambiguity and react to any vague news? Online vending platforms often attempt to affect buyer’s decisions by messages like “20 people are looking at this item right now” or “The average score based on 567 reviews is 7.9/10”. We augment the two-color Ellsberg experiment with similarly worded signals about the unknown probability of success. All decision-makers, including ambiguity-neutral, (...) recognize and account for ambiguity; ambiguity-neutral subjects are less likely to respond to vague signals. The difference between decisions of ambiguity-neutral and non-neutral subjects vanishes for high precision signals; still less than 60% subjects choose the ambiguous urn, even for high communicated probabilities of success. We conjecture participants may discard information, if they see no contradiction between it and their prior beliefs, hence the latter are not updated. Higher confidence makes subjects more likely to discard the news, and empirically ambiguity-neutral subjects appear more confident than those ambiguity-averse. (shrink)

While individuals presented in central texts of the period are indeed often alone or separated from others, Yousef regards this isolation as a problem the texts attempt to illuminate, rather than a condition they construct as normative or ...

All geopolitical change represents the creation of a new order and this entails the alteration of the spatial conditions and, therefore, the modification of the way of understanding borders. Carl Schmitt, especially in his last stage, aimed at delineating a new international configuration made up of large spaces (Grossräume), once the time of sovereignties typical of the Ius publicum europaeum was over. The goal of this study is to analizy to which extent and how Schmitt 's analytical tools around borders (...) can be useful to understand the current state of globalization. Todo cambio geopolítico representa la creación de un nuevo orden y ello conlleva la alteración de las condiciones espaciales y, por tanto, la modificación de la manera de entender las fronteras. Carl Schmitt, especialmente en su última etapa, apuntó al delineamiento de una nueva configuración internacional conformada por grandes espacios (Grossräume), una vez que el tiempo de las soberanías propias del Ius publicum europaeum había terminado. El objetivo de este estudio es analizar hasta qué punto y de qué manera las herramientas analíticas de Schmitt en torno a las fronteras pueden ser útiles para comprender el estado actual de la globalización. (shrink)

This thesis explores how the problem of other minds arises in philosophy and literature of the eighteenth and early nineteenth centuries. The effort to imagine and establish the conditions, limits and possibilities of human knowledge of other human beings is common to works of empirical psychology, moral philosophy, political theory, autobiography and fiction. The ways in which literature, and specifically autobiographical writing, imagine the solitude and singularity of the human being are understood, in this dissertation, as contextualizations of the skeptical (...) moods which afflict the subjects of philosophical writing. The argument of the thesis, simply put, is that the human being and self conceived in this period is constructed in terms of dependence rather autonomy, and determined by the imagination of its relatedness to others, not its self-sufficiency. Rousseau's influence on English Romanticism provides a historical framework and principle of selection for the diverse set of texts brought together in the dissertation. Epistemological and ethical philosophies of the English Enlightenment serve as background for a study of the problems of human association that are central to all of Rousseau's work. The ineradicable doubts and insecurities which are constitutive of human relations in Rousseau are shown to be assimilated and transformed in the literature of English Romanticism. (shrink)

The Aesthetic Commonplace is a study of the everyday as a region of overlooked value in the work of William Wordsworth, George Eliot, and Ludwig Wittgenstein. The Romantic poet, the realist novelist, and the modern philosopher are each separately associated with a commitment to the common, the ordinary, and the everyday as a vital resource for reflection on language, on feeling, on ethical insight, and social attunement. The Aesthetic Commonplace is the first study to draw substantive lines of connection between (...) Wittgenstein and the cultural and literary history of nineteenth century England. Tracing conceptual and formal affinities between the poet, the novelist, and the philosopher, the book brings to light significant links between the intellectual history of the nineteenth century and the early decades of the twentieth, making the case for a continuous cultural commitment to the aesthetic as a distinctive mode of investigating thought, feeling, and the everyday language upon which we depend for their articulation. Addressed to both literary studies and to philosophy, The Aesthetic Commonplace makes a compelling case for the interdependence of form, concept, and emotion in the history and interpretive practices of both disciplines. (shrink)

Within the context of Barut's self-field approach to quantum electrodynamics, we show that the exact relativistic expression for the Einstein A-coefficient of atomic spontaneous emission reduces, in the long wavelength approximation, to a form containing electric- and magnetic-like multipole contributions related to the transition charge and current distributions of the relativistic electron. A number of interesting features of the expressions involved are discussed, and their generalization to interacting composite systems is also pointed out.

In his commentary on the Light Verse (Q. 24:35), the Andalusian mystic and Qurʾān exegete Abū al-Ḥakam Ibn Barrajān (d. 1141) presents the blessed tree (al-shajara al-mubāraka) not simply as a terrestrial olive tree in Syria or even as a mystical allegory, but as the ultimate locus of divine disclosure and the highest metaphysical entity in the cosmos that subsumes the world of creation. This article assesses the originality of Ibn Barrajān’s contribution to the heavenly tree motif by examining his (...) unique mystical and exegetical theories informing his ontological reading of the blessed tree, including the concept of the ‘reality upon which creation is created’ and the ‘universal servant’. In addition to analysing the internal logic of Ibn Barrajān’s discourse, this article explores the larger interpretive themes recurrent across exoteric, Sufi, and philosophical interpretations of the Light Verse up to the twelfth century that the author may have had access to in al-Andalus, including the treatises of the Brethren of Purity (Ikhwān al-ṣafā) and Biblical sources. Finally, this article highlights how Ibn Barrajān weaves the Qurʾānic good tree (al-shajara al-ṭayyiba) and the lote tree of the furthest boundary (sidrat al-muntahā) into his overarching understanding of the blessed tree. It also considers how his reading may have contributed to later readings by Ibn ʿArabī (d. 1240) and some of his intellectual heirs. (shrink)

This paper is an experiment in collective writing conducted in Autumn 2019 at the Faculty of Education at Beijing Normal University. The experiment involves 12 international masters' students readi...

Oocytes, eggs and blastomeres of the embryo are special cells that undergo rapid changes in structure and function at developmental transitions. These changes are frequently regulated by cytoplasmic signaling events, particularly at the developmental transition of fertilization, because the genome is largely inactivated at this time. Protein kinase C (PKC) is a signaling agent that acts after the sperm‐induced rise in calcium and has a central role in the remodeling of the structure of the egg into the zygote in many (...) species. PKC also acts during other developmental transitions. This kinase serves as a chronometer, which can choreograph the cell's remodeling events in both space and time. Several technical advancements discussed in this review have permitted a better understanding of the actions of PKC. (shrink)

As disparities and data science researchers, we write in response to Char and colleagues paper on “Identifying Ethical Considerations for Machine Learning Healthcare Applications.” While the...

The experience of fear in the Contemporaneity is mostly determined by a type of enmity that, unlike that which prevailed in Modernity, shows itself untraceable, virtual, rarely visible, given the delocalization structures of globalization. All this refers to a specific epistemology, linked to the loss of the classic coordinates of finitude and to the opening of a paradigm where the lack of representation and the apparent depoliticization will turn adversaries and combatants into mere ghosts, thus increasing their terrifying effect. The (...) article tries to review these notions taking the dread that contemporary terrorism causes as a starting point to build a more global reflection that includes the specific type of gear generated in times of pandemic. La experiencia del miedo en la Contemporaneidad viene mayormente determinada por un tipo de enemistad que, a diferencia de la que imperaba en la Modernidad, se muestra ilocalizable, virtual, pocas veces visible, dadas las estructuras de deslocalización propias de la globalización. Todo ello remite a una epistemología concreta, ligada a la pérdida de las coordenadas clásicas de la finitud y a la apertura de un paradigma donde la falta de representacionalidad y su aparente despolitización convertirán a los adversarios y combatientes en meros fantasmas, aumentando así su efecto terrorífico. El artículo pretende revisar estas nociones tomando el pavor que ocasiona el terrorismo contemporáneo como punto de partida para construir una reflexión más global que incluye el específico tipo de miedo generado en tiempos de pandemia. (shrink)

Los análisis sobre la filosofía política hobbesiana suelen girar alrededor del estudio del miedo y de cómo este es el factor fundamental para explicar el surgimiento de la soberanía. Este artículo tiene como objetivo ir más allá del concepto de temor como base articuladora de la política y centrar el análisis en un terreno fundamental sin el cual no se explica el Leviatán: la alteridad entendida como enemistad. Un análisis de la específica otredad que pone en juego Hobbes a través (...) de su perspectiva mecanicista permitirá entender los diferentes matices que esta visión incorpora, así como las consecuencias que derivan de una filosofía política basada en una concepción negativa de la compañía. El texto explorará las líneas de articulación del concepto de enemistad hobbesiana tanto desde el punto de vista del interior del Estado como desde una perspectiva interestatal. (shrink)

Medical paternalism has long been a common medical practice. However, patient autonomy in healthcare has been recently adopted by doctors and patients alike. This study explored whether doctors and patients in a tertiary care hospital in Saudi Arabia preferred autonomy or paternalism in shared decision‐making. A total of 118 participants (51 patients requiring total knee replacement, owing to stages 3–4 of osteoarthritis, and 67 doctors) from the Eastern province, Saudi Arabia. responded to a 17‐question category‐based questionnaire involving four scales of (...) autonomy. Descriptive statistics and chi‐square test results revealed that in this hospital, patients preferred a paternalistic approach toward their medical care along with a full disclosure of the risks related to surgical procedures. We recommend health education regarding the specific autonomy subscales (doctor knows best, patient should decide, right to non‐participation, and obligatory risk information), and the implementation of protocols that protect patients' rights and enhance personal autonomy. (shrink)

Chemistry textbooks are the most popular teaching material in schools. They can contribute significantly to the attainment of scientific educational goals. Internationally, educational reforms in science subjects are adopting newer practices such as Engineering Design Processes for addressing real-world requirements. This study, conducted in Saudi Arabia, employed a qualitative and quantitative content analysis method to evaluate the level of the EDP incorporated in the tenth grade chemistry textbook and accompanying student’s experiments’ guidebook. The results found the inclusive mean for EDP (...) was 1.05, which indicated incorporation was found to be at level one. This inclusion EDP in chemistry textbooks has been rated as novice or deficient, which indicates that it does not fulfill the majority of the requirements for inclusion as suggested by NGSS. (shrink)

Tourism, as an industry, has become one of the most dynamic sectors of the world economy these days and has specific features that are different from other industries. In the tourism industry, production and consumption points occur spatially at the same time. In addition, the tourism industry contributes to the economic growth of developed regions and can simultaneously distribute the wealth created geographically. It is notable that the coronavirus disease 2019 (COVID-19) pandemic has caused many challenges in the tourism industry (...) regarding the presence of tourists in tourism centres and the closing of all tourism service chains, including food, entertainment, transportation and travel services worldwide. Tourism-related businesses, which are considered as invisible export and one of the engines of development and occupation, have been rendered obsolete. In other words, the businesses, as well as multiple units and activities in the related chain, have been damaged and employees of this industry have lost their jobs. This has led to the recession and regressive course of the developing and large industry of tourism in the world. It is worth noting that the tourism industry includes various sections, the most important of which is religious tourism. All religions in the world have different religious places, works, traditions and customs, which have become amongst the most important tourist attractions. Meanwhile, Muslims and the religion of Islam play a significant role in this branch of tourism. The Hajj, pilgrimage to holy places and the existence of mourning ceremonies or religious celebrations of Muslims are amongst the largest religious tourism events in the world. Given the importance of this issue, the present study aimed to evaluate the impact of the COVID-19 pandemic on religious tourism in Iraq in 2021. This field study was conducted on 4500 Muslim managers and staff of restaurants, hotels, grocery stores, clothing stores and souvenir shops around the holy shrines of imams and religious places in Karbala, Najaf, Kufa, Samarra and Kazemi. According to the results, the tourism of Iraq, which is mainly limited to Muslim religious sites in several major Iraqi cities, has also seen a decline in the number of religious tourists. The negative effects of COVID-19 on religious tourism have also been proved statistically by the Statistical Package for the Social Sciences (SPSS), as µ ≥ 3 has been counted in all indices.Contribution: Our findings offered new insights into the impact of COVID-19 on tourism, based on statistical analysis. In this study, the authors showed how COVID-19 affects various aspects of religious tourism, which has not been addressed in previous researches. (shrink)

Background Workplace Incivility is a common issue in the nursing profession. Nurses who are affected by such behaviors may experience distress. Objectives This study aimed to assess the relationship between workplace incivility and nurses’ professional quality of life. Research design This cross-sectional correlational study was conducted in 2021 in “Tehran”. Data were collected using a demographic questionnaire, the Nursing Incivility Scale (NIS), and the Professional Quality Of Life scale (ProQOL). Data analysis was performed through the Pearson correlation and multiple linear (...) regression, using the SPSS v.16. Participants and research context Participants were 200 nurses randomly recruited from selected hospitals of “TUMS”. Ethical considerations The study obtained research ethics approval and all participants were informed of the voluntary and anonymous nature of their participation. Findings The mean age of participants was 32.30 ± 7.22, and 76.5% were female. There was a significant correlation between the professional quality of life and workplace incivility ( r = −0.23, p =.001). Multiple regression analysis between the subscales of workplace incivility and professional quality of life demonstrated that the incivility from the supervisor ( β = −0.29, p =.001) and incivility from patients ( β = −0.27, p <.001) can predict the compassion satisfaction dimension. The incivility from the supervisor ( β = 0.24, p =.001) and incivility from patients ( β = 0.26, p <.001) can explain burnout. The incivility of the patients can explain secondary traumatic stress ( β = 0.14, p =.02). Conclusion This study showed that workplace incivility is significantly related to professional quality of life. Therefore, the reduction of behaviors of incivility can lead to the improvement of the professional quality of life. (shrink)