We explicitly compute, following the method of Weyl, the commutator [Q, P] of the position operatorQ and the momentum operatorP of a particle when the dimension of the space on which they act is finite with a discrete spectrum; and we show that in the limit of a continuous spectrum with the dimension going to infinity this reduces to the usual relation of Heisenberg.

Recently we have studied quantum mechanics of bounded operators with a discrete spectrum. In particular, we derived an expression for the commutator[Q, P] of two bounded operators whose spectrum is discrete, and we showed that in the limit of a continuous spectrum the commutator becomes the standard one of Heisenberg. In this paper we show that the angular momentum operator and the phase operator satisfy the new commutation relation. We also briefly discuss the problem of the canonical phase operator conjugate (...) to the number operator. (shrink)

A weighted total of 630 pupils aged 1440. Among 1440-year-olds, especially females. Among 3015-year-old Glasgow Asians 86% were so born, indicating that they are the children of migrants. Generational differences in these comparisons cannot be due to positive selection of the migrant generation for height, and are attributed to improved environment, including nutrition and public health measures. This suggests the possibility of corresponding improvements in coronary and diabetic risk.

Fibre suspension has garnered considerable attention in turbulent flows that are used in many industries. Solid particles, such as dust particles, notably affect the turbulent flow field in a rotational frame. In assessing their impacts, the dusty turbulent flow for fibre suspensions needs to be studied in a frame of rotation that can be substantially applied in many industries. This study, therefore, aims to build a theoretical model for the energy motion of dusty turbulent flow of fibre suspensions in a (...) rotational frame. The turbulence momentum equation was considered to formulate the model in presence of dusty fluid rotating flow of fibre suspensions. The newly derived equation was derived in second-order correlation tensors Fi,j, Wi,j, Gi,j, Si,j, Xi,j, Yi,j, Qi,j, and Ri,j at any two points in the flow domain, where the tensors were expressed as space, time, and distance functions. The developed model is a considerable improvement because it takes into account all of the potential influential parameters that could affect the motion of turbulent energy, such as dust particles, suspending particles, and rotating frame. However, the impact of these parameters on turbulence energy motion must be evaluated in order to assess the performance of turbulence systems utilized in a variety of industries, such as paper manufacturing. The present theoretical development will contribute to open up experimental and numerical research opportunities for the advancement of the industry, science, and technology. (shrink)

الكتاب إجالة دلالية في عالم صدر المتألهين الشيرازي المعروف بملا صدرا، صاحب الحكمة المتعالية، إذ أنتج ثلاثية تتكون من الفلسفة والعرفان، واللغة، فبحث المؤلف عن تأثيراتها في المعنى القرآني، ودرس تجلياته، من جهة مباحث الألفاظ، وتصورات ملا صدرا عن مفهوم الدلالة، وأنواعها، مع بيان العلاقات الدلالية من قبيل الترادف، والمشترك، والتضاد، والتنمية اللغوية، بلحاظ ترك الأثر المعرفي على تلك الألفاظ، ومن جهة التركيب، في الجمل وما يطرأ عليها، ومن جهة السياق اللفظي، والمقامي، والسببي، وماله من أثر في تحقيق تماسك النص، (...) وتوجيه الدلالة. (shrink)

Nearly all fractions within the political, economic, and social spheres gave responses to the recent financial crisis. In broad terms, both left-leaning and right-leaning scholars and commentators presented their explanations for the crisis, with confident agendas defining ‘what is wrong’ and how to deal with it. However, as intellectual history shows us, most of those explanations were no less fascinating precisely because they shared more that they acknowledged. A major divide has been over the role of governments in coordinating markets, (...) or, in the case of Roberts’sThe Logic of Discipline, the role of markets in coordinating governments. In this essay, I offer an overview of Alasdair Roberts’s arguments inThe Logic of Discipline. Gradually, I extend the examined issues beyond the state-market dichotomy, arguing that only in understanding the interactive force of the two can a systemic analysis of capitalism hope to be plausible. (shrink)

Acknowledgements -- List of illustrations -- Table of transliteration -- Introduction: Shams al-Din Samarqandi: his life and training -- Works and thought -- Science of the cosmos and the soul ('Ilm al-afaq wa al-anfus) -- Manuscripts used in preparing this edition -- Sources -- Persian and Arabic texts [1-287].

This book provides the first annotated English translation of Physics and Metaphysics and edits the original Arabic text on which the translation is based where it is corrupt or incomprehensible.

Open Shop Scheduling Problem is one of the most important scheduling problems in the field of engineering and industry. This kind of problem includes m machines and n jobs, each job contains a certain number of operations, and each operation has a predetermined processing time on its corresponding machine. The order of processing of these operations affects the completion times of all jobs. Therefore, the purpose of OSSP is to achieve a proper order of processing of jobs using specified machines, (...) so that the completion time of all jobs is minimized. In this paper, the strengths and limitations of three methods are evaluated by comparing the results of solving the OSSP in large-scale and small-scale benchmarks. In this case, the minimized completion time and total tardiness are considered the objective functions of the adapted methods. To solve small-scale problems, we adapt a mathematical model called Multiobjective Mixed Linear Programming. To solve large-scale problems, two metaheuristic algorithms including Multiobjective Parallel Genetic Algorithm and Multiobjective Parallel Simulated Annealing are adapted. In experimental results, we randomly generated small-scale problems to compare MOMILP with the Genetic Algorithm and Simulate Annealing. To compare MOPSA and MOPGA with the state of the art and show their strengths and limitations, we use a standard large-scale benchmark. The simulation results of the proposed algorithms show that although the MOPSA algorithm is faster, the MOPGA algorithm is more efficient in achieving optimal solutions for large-scale problems compared with other methods. (shrink)

Objectives: To study the attitudes of both medical and non-medical students towards the do-not-resuscitate decision in a university in Hong Kong, and the factors affecting their attitudes.Methods: A questionnaire-based survey conducted in the campus of a university in Hong Kong. Preferences and priorities of participants on cardiopulmonary resuscitation in various situations and case scenarios, experience of death and dying, prior knowledge of DNR and basic demographic data were evaluated.Results: A total of 766 students participated in the study. There were statistically (...) significant differences in their DNR decisions in various situations between medical and non-medical students, clinical and preclinical students, and between students who had previously experienced death and dying and those who had not. A prior knowledge of DNR significantly affected DNR decision, although 66.4% of non-medical students and 18.7% of medical students had never heard of DNR. 74% of participants from both medical and non-medical fields considered the patient’s own wish as the most important factor that the healthcare team should consider when making DNR decisions. Family wishes might not be decisive on the choice of DNR.Conclusions: Students in medical and non-medical fields held different views on DNR. A majority of participants considered the patient’s own wish as most important in DNR decisions. Family wishes were considered less important than the patient’s own wishes. (shrink)

Few figures have been of such enduring importance as Ibn Sina, also known as Avicenna (980-1037 AD), the great Persian philosopher and physician of the Abassid period. This work is a study of the fourth part of Ibn Sina's late and most comprehensive book al-Isharat wat-Tanbihat, Remarks and Admonitions, a book which Ibn Sine describes as 'the cream of the truth', containing 'the best pieces of wisdom' expressed 'in sensitive words'. The present volume includes an introduction, discussing the nature of (...) the fourth part of al-Isharat and the procedures followed in analyzing and translating it; a lengthy analysis of Ibn Sina's ideas on the three main topics in this part of al-Isharat (the nature of happiness, the stations of the knowers, and the signs manifested by the knowers); and a translation of this part. The work shows that, to Ibn Sina, knowledge of the eternal aspects of the universe, primarily of God, is the highest human objective and the only thing that secures human happiness or heavenly existence. While no permanent knowledge of this kind is possible for a human being on earth, signs of its temporary acquisition are evidenced in many ways, one of which is possession of powers that a person who does not know the secrets of the universe may consider extraordinary. Although the focus of this volume is on the fourth part of al-Isharat, many references are made to some of Ibn Sina's other writings by way of clarifying certain points and placing this part of al-Isharat in the context of Ibn Sina's general philosophy. (shrink)

Theological anthropology in Islam, philosophy of Islamic education and aspects of success.

Islamic theory of knowledge and philosophy; papers of a meeting.

The ambiguity of August Strindberg’s approach to women has engendered varying interpretations, including accusations of misogyny. Among his allegedly misogynistic plays is the 1887 naturalistic masterpiece, The Father. Chronologically coinciding with the rise of the women’s movement in Sweden, The Father, rather than endorsing a misogynistic culture, allows for an alternative reading that contributes to the destabilisation of gender binaries and an understanding of gender identities as relational and performative. In its portrayal of a fierce struggle between a seemingly diabolic (...) wife and a supposedly tyrannical husband, the play delves deeply into the dynamics of gender and the subversion of normatively established orders. This article analyses Strindberg’s play in relation to Slavoj Žižek’s conception of the ‘femme fatale’ and Judith Butler’s account of gender performativity to illustrate how the play’s central characters performatively subvert the hegemonic norms by which they are constituted. (shrink)

We connect learning algorithms and algorithms automating proof search in propositional proof systems: for every sufficiently strong, well-behaved propositional proof system [Formula: see text], we prove that the following statements are equivalent, (1) Provable learning. [Formula: see text] proves efficiently that p-size circuits are learnable by subexponential-size circuits over the uniform distribution with membership queries. (2) Provable automatability. [Formula: see text] proves efficiently that [Formula: see text] is automatable by non-uniform circuits on propositional formulas expressing p-size circuit lower bounds. Here, (...) [Formula: see text] is sufficiently strong and well-behaved if I.–III. hold: I. [Formula: see text] p-simulates Jeřábek’s system [Formula: see text] (which strengthens the Extended Frege system [Formula: see text] by a surjective weak pigeonhole principle); II. [Formula: see text] satisfies some basic properties of standard proof systems which p-simulate [Formula: see text]; III. [Formula: see text] proves efficiently for some Boolean function [Formula: see text] that [Formula: see text] is hard on average for circuits of subexponential size. For example, if III. holds for [Formula: see text], then Items 1 and 2 are equivalent for [Formula: see text]. We use the following modified notion of automatability in Item 2, the automating circuits output a [Formula: see text]-proof of a given formula (expressing a p-size circuit lower bound for a function [Formula: see text]) in non-uniform p-time in the length of a shortest [Formula: see text]-proof of a closely related but different formula (expressing an average-case subexponential-size circuit lower bound for the same function [Formula: see text]). If there is a function [Formula: see text] which is hard on average for circuits of size [Formula: see text], for each sufficiently big [Formula: see text], then there is an explicit propositional proof system [Formula: see text] satisfying properties I.-III., i.e. the equivalence of Items 1 and 2 holds for [Formula: see text]. (shrink)

Journal of Mathematical Logic, Ahead of Print. We connect learning algorithms and algorithms automating proof search in propositional proof systems: for every sufficiently strong, well-behaved propositional proof system [math], we prove that the following statements are equivalent, (1) Provable learning. [math] proves efficiently that p-size circuits are learnable by subexponential-size circuits over the uniform distribution with membership queries. (2) Provable automatability. [math] proves efficiently that [math] is automatable by non-uniform circuits on propositional formulas expressing p-size circuit lower bounds. Here, [math] (...) is sufficiently strong and well-behaved if I.–III. hold: I. [math] p-simulates Jeřábek’s system [math] (which strengthens the Extended Frege system [math] by a surjective weak pigeonhole principle); II. [math] satisfies some basic properties of standard proof systems which p-simulate [math]; III. [math] proves efficiently for some Boolean function [math] that [math] is hard on average for circuits of subexponential size. For example, if III. holds for [math], then Items 1 and 2 are equivalent for [math]. We use the following modified notion of automatability in Item 2, the automating circuits output a [math]-proof of a given formula (expressing a p-size circuit lower bound for a function [math]) in non-uniform p-time in the length of a shortest [math]-proof of a closely related but different formula (expressing an average-case subexponential-size circuit lower bound for the same function [math]). If there is a function [math] which is hard on average for circuits of size [math], for each sufficiently big [math], then there is an explicit propositional proof system [math] satisfying properties I.-III., i.e. the equivalence of Items 1 and 2 holds for [math]. (shrink)

The problem of evil: formulation and historical solutions -- Analysis of the theories of evil of Ibn Sînâ's predecessors -- Ibn Sînâ's analysis of metaphysical evil -- Ibn Sînâ's notion of moral evil -- Ibn Sînâ's solution for the problem of evil and the problem of destiny.

This study aims to examine the underlying mechanism of the relationship between perceived green human resource management and perceived employee green behavior. By drawing on attitude and social exchange theories, we examined green commitment as a mediator and green knowledge sharing as a moderator of the GHRM–EGB relationship. The study employs partial least square structural equation modeling to analyze 329 responses. Data were collected in two time lags. The empirical results confirmed that GC mediates the relationship between GHRM and EGB. (...) However, the study results found that GKS moderated the indirect influence of GHRM on green behavior via GC. This research signifies the effect of GHRM, GKS, GC, and green behavior on organizations’ sustainability and environmental management. Despite the emerging literature on the significance of green practices in organizations for environmental management, no study has examined the moderating role of GKS on the indirect effect of GHRM on green behavior via mediating role of GC. This study offers valuable insight into environmental management in organizations through green practices and green behavior. (shrink)

Burnout, characterized by emotional exhaustion, depersonalization, and a diminished sense of personal accomplishment, is an occupational phenomenon now recognized by the World Health Organization. This study explores the interplay between psychological capital and emotional labour in contributing to burnout among workers in a Malaysian non-profit organization (NPO). Psychological capital encompasses positive psychological states such as self-efficacy, optimism, hope, and resilience. Emotional labour involves managing emotions to fulfil job roles, often requiring workers to present emotions that may not reflect their true (...) feelings. The constant need to maintain these emotional displays can lead to emotional dissonance and burnout. Given Malaysia's demographic shifts towards an ageing population, the implications of burnout among NPO workers, who provide critical services to vulnerable groups, are significant. The high workload and emotional demands placed on these workers can result in chronic stress, emotional exhaustion, and a decrease in job performance and motivation. This study aims to fill the research gap by examining the specific factors that contribute to burnout in the Malaysian context, considering the unique cultural and social dynamics that may influence these relationships. The findings of this research can provide valuable insights for developing interventions to enhance psychological resilience and manage emotional labour more effectively among NPO workers. By addressing these challenges, organizations can support their workforce in maintaining high levels of service quality and personal well-being, which is crucial for the sustainability of NPOs and the well-being of the communities they serve. (shrink)

We study the claim that multisensory environments are useful for visual learning because nonvisual percepts can be processed to produce error signals that people can use to adapt their visual systems. This hypothesis is motivated by a Bayesian network framework. The framework is useful because it ties together three observations that have appeared in the literature: (a) signals from nonvisual modalities can “teach” the visual system; (b) signals from nonvisual modalities can facilitate learning in the visual system; and (c) visual (...) signals can become associated with (or be predicted by) signals from nonvisual modalities. Experimental data consistent with each of these observations are reviewed. (shrink)

jild-i 1. Āzādī va marzʹhāyash -- jild-i 2. Istiqlāl (farhangī).

This study employs a newly developed methodology called the variational homotopy perturbation transformation method to study fractional acoustic wave equations. The motivation for this study is to extend the variational homotopy perturbation technique to the variational homotopy perturbation transformation technique in the sense of the Yang–Caputo–Fabrizio operator. The suggested method demonstrated a straightforward and accurate technique for investigating fractional-order partial differential equations. The technique’s validity is demonstrated through the use of several illustrative instances. The obtained answers were found to be (...) extremely near to the precise solutions. Additionally, the proposed strategy achieves the best degree of accuracy. Indeed, the current technique can be seen as one of the analytic strategies for solving nonlinear fractional partial differential equations compared to other analytical techniques. (shrink)

Open Innovation and Sustainability-Oriented Innovation are undoubtedly two of the most debated topics of the last decades, gaining the interest of policymakers, practitioners, and scholars all over the world. Even if they have been usually described as two independent research fields, there are some emblematic examples presenting interplay and synergy between these topics, represented either by the hybrid perspectives of Open Sustainable Innovation, that is, the Open Innovation approach acting as an enabler of Sustainability-Oriented Innovation, and Sustainable Open Innovation, which (...) instead analyzes how firms developing Sustainability-Oriented Innovation also adopt the Open Innovation approach. On the basis of these two perspectives and through a systematic literature review, this paper investigates the relationships between the Open Innovation and Sustainability-Oriented Innovation approaches and frames these relationships by developing an innovative framework, which highlights the main aspects characterizing the hybrid perspectives of Open Sustainable Innovation and Sustainable Open Innovation. The proposed framework highlights the Open Innovation practices and strategies enabling Sustainability-Oriented Innovation, as well as the contextual factors enabling both practices and strategies for Sustainability-Oriented Innovation. In addition, it shows how firms developing Sustainability-Oriented Innovation have a similar orientation toward the adoption of the Open Innovation approach both in terms of how they engage stakeholders, and the innovation capabilities they develop. Finally, a research agenda identifying the central issues and the key research gaps is offered for further development in future studies. (shrink)

The Indus Basin's advantageous climate and topography rendered it a prime site for the implementation of an irrigation system. This study looks at how the Indus Basin is affected by climate change. Changes in water flow, glacial/snow melt, and catchment areas in the Indus and its tributaries are revealed by trend analysis from hydro-logical stations. A network of canals constituted of trans-boundary rivers was built beside the Indus River System (IRS), soon after the implementation of the Indus Water Treaty, about (...) 70% of its water was allocated for irrigation purposes. An evident increase from 8.5 to 18.2 million hectares (MH) in the cropland area in Pakistan is monitored, whereas in India it increased widely from 2.02 to 8.5 MH that is about three times of the pre-vious figures due to expansion of the Indus irrigation network. Water tables have dropped and water logging has resulted from urbanization and groundwater extraction, while the use of pesticides and fertilizers has lowered the quality of the water.These problems are made worse by climate change, which presents serious obstacles to the region's water security, environmental sustainability, and economic growth.This article provides a comprehensive analysis of the modifications in the Indus Basin irrigation system and the impact of these changes on environmental resources. We can create practical plans to lessen the consequences of climate change and guarantee the Indus Basin has a safe and sustainable water supply in the future by comprehending how it affects the basin. (shrink)

Objective To determine the attitudes of Egyptian patients regarding their participation in research and with the collection, storage and future use of blood samples for research purposes. Design Cross-sectional survey. Study population Adult Egyptian patients (n=600) at rural and urban hospitals and clinics. Results Less than half of the study population (44.3%) felt that informed consent forms should provide research participants the option to have their blood samples stored for future research. Of these participants, 39.9% thought that consent forms should (...) include the option that future research be restricted to the illness being studied. A slight majority (66.2%) would donate their samples for future genetic research. Respondents were more favourable towards having their blood samples exported to other Arab countries (62.0%) compared with countries in Europe (41.8%, p<0.001) and to the USA (37.2%, p<0.001). Conclusions This study shows that many individuals do not favour the donation of a blood sample for future research. Of those who do approve of such future research, many favour a consent model that includes an option restricting the future research to the illness being studied. Also, many Egyptians were hesitant to have their blood samples donated for genetic research or exported out of the Arab region to the USA and European countries. Further qualitative research should be performed to determine the underlying reasons for many of our results. (shrink)