The Organizations and the Natural Environment Division of the Academy of Management, like most Academy divisions, has an annual dissertation competition to recognize and honor exemplary work in the field. This article, kindly invited by the Editor of Business & Society, provides an overview of the winner and runners-up of that competition, insights into the process for selecting this work, and some reflections on future dissertations in the area.

Dieses Open-Access-Buch gibt aktuelle interdisziplinäre Forschungseinblicke rund um das Fab City-Konzept. Ein Ansatz, der beschreibt, wie Produktions- und Konsumptionsweisen gestaltet werden können, sodass einerseits globale Kollaboration in und durch Communities von der Ideengenerierung bis zur Produktentwicklung physischer Güter mittels quelloffener Technologien (Open Source Software und Hardware) ermöglicht wird und andererseits die Produktion dieser Güter lokal und somit möglichst nahe am Ort des Bedarfs sowie dezentral im Sinne einer verteilten Produktion erfolgen kann, beispielsweise in Fab(rication) Labs. Ziel ist die Schaffung einer (...) möglichst nachhaltigen Produktion bzw. Wertschöpfung. Ökologisch nachhaltig, indem lange Transportwege vermieden und auf Grundlage von Kreislaufprinzipien lokale Stoffkreisläufe geschlossen werden. Ökonomisch nachhaltig, indem durch quelloffene Technologien Wettbewerbsbeschränkungen und durch föderierte Ansätze Abhängigkeiten vermieden werden. Sozial nachhaltig durch ein partizipatives Wertschöpfungssystem, in dem der Zugang zu Wissen und Knowhow sowie zu Produktionsmitteln unbeschränkt ist. Über den gesamten Produktentstehungsprozess und -lebenszyklus enthält das vorliegende, bilinguale Werk in deutscher und englischer Sprache Beiträge aus den Bereichen Citizen & Collaborative Innovation and Design, Circular Design & Economy, Open-Source-Software-Tools für die Entwicklung von Open Source Hardware, Digital Product Passport, föderierte (Open-Source-) Systeme, die Verbreitung von Open Source Hardware sowie technical literacy und economic governance. Prof. Neil Gershenfeld, Director of MIT's Center for Bits and Atoms, and Chairman of the board of The Fab Foundation: "For many years the growth of cities has been an inexorable trend, with cities acting as regional magnets and engines; the resources enabling a Fab City can also help expand opportunity beyond cities. There is now an opportunity and need for labs that can develop, deploy, and measure the frontiers of Fab City technologies. This book provides a much-needed snapshot of the current state of that challenge." Tomas Diez, Executive Director of the Fab City Foundation: "This book is an invitation for large-scale collaboration to build distributed system that can support the development of alternative modes of production, in line with the social and ecological needs of our time.". (shrink)

It is argued that the preservation of truth by an inference relation is of little interest when premiss sets are contradictory. The notion of a level of coherence is introduced and the utility of modal logics in the semantic representation of sets of higher coherence levels is noted. It is shown that this representative role cannot be transferred to first order logic via frame theory since the modal formulae expressing coherence level restrictions are not first order definable. Finally, an inference (...) relation, calledyielding, is introduced which is intermediate between the coherence preservingforcing relation introduced elsewhere by the authors and the coherence destroying, inference relation of classical logic. (shrink)

An epistemic logic is built up on the basis of an analysis of two skeptical arguments. the method used is to first construct an inference relation appropriate to epistemic contexts and introduce "a knows that..." as an operator giving rise to sentences closed with respect to this new concept of inference. soundness and completeness proofs are provided using auxiliary three-valued valuations.

This essay introduces a special report from The Hastings Center entitled Democracy in Crisis: Civic Learning and the Reconstruction of Common Purpose, which grew out of a project supported by the John S. and James L. Knight Foundation. This multiauthored report offers wide‐ranging assessments of increasing polarization and partisanship in American government and politics, and it proposes constructive responses to this in the provision of objective information, institutional reforms in government and the electoral system, and a reexamination of cultural and (...) political values needed if democracy is to function well in a pluralistic and diverse society. The essays in the special report explore the norms of civic learning and institutions, social movements, and communal innovations that can revitalize civic learning in practice. This introductory essay defines and explains the notion of civic learning, which is a lynchpin connecting many of the essays in the report. Civic learning pertains to the ways in which citizens learn about collective social problems and make decisions about them that reflect the duties and responsibilities of citizenship. Such learning can occur in many social settings in everyday life, and it can also be facilitated through participation in the processes of democratic governance on many levels. Civic learning is not doctrinaire and is compatible with a range of public goals and policies. It is an activity that increases what might be called the democratic capability of a people. (shrink)

The increasingly pervasive practice of veiling among Muslim women has stimulated a great deal of scholarly investigation and debate. This study brings empirical evidence to bear on current debates about the meaning of the veil in Islam. This article first examines the conflicting meanings of the veil among Muslim religious elites and Islamic feminists. Although the dominant gender discourse among Muslim elites strongly favors this cultural practice, an antiveiling discourse promulgated by Islamic feminists has gained ground within recent years. This (...) study then examines how these discursive disputes affect gender identity negotiation among veiled and unveiled Muslim women living in Austin, Texas. Interviews with these women highlight how their gender identities reproduce and reformulate existing Muslim gender discourses. Special attention is paid to the subjective disparities and points of congruence between both groups of respondents. This study concludes by suggesting avenues for future research on the intersection of gender, religion, and cultural difference. (shrink)

The Declaration of Independence states that all men are created equal in the United States, but that statement does not hold true for words. Some words carry more weight than others--they seem to work harder, get more done, and demand more respect. Political Keywords: Using Language that Uses Us looks at eight dominant words that are crucial to American political discourse, and how they have been employed during the last fifty years. Based on an analysis of eleven separate studies of (...) political language, Political Keywords helps readers to understand what these terms mean and how they are used. For example, the book tracks what politics now means to modern commentators, how schoolteacher impress certain values upon the nation's children by invoking the office of the president, and why an innocent word like government sometimes makes people so upset. It details how the people are referenced in political talk and how the media portray themselves. The book also considers the work done by political parties, political promises, and political consultants because, together, they shed special light on modern elections. Combining social science with subtle forms of cultural interpretation, Political Keywords: Using Language that Uses Us provides a fresh look at both American politics and American language. It is an ideal text for undergraduate and graduate courses in political communication, political language, political campaigns, media and politics, political psychology, public opinion, rhetorical criticism, contemporary public address, and presidential rhetoric. (shrink)

ABSTRACT. This paper considers two sets ethical obligations owed by a firm and its management to stockholders and employees with respect to layoffs. Literature and research from ethics and agency are used to frame ethical issues that pertain to age discrimination in layoffs. An actual court case provides an example for focus, analysis, and discussion. Points of discussion include management''s obligations to employees and factors of injustice related to prejudice against age.

An empirical study using two ethics-related and three sales force outcome variables was conducted in Taiwan and compared to an existing U.S. sample. Across the two national cultures, individual perceptions of corporate ethics appears to be a more direct determinant of organizational commitment than individual moral values. Differences between the two national cultures were found in ethics perception as it relates to moral values, job satisfaction, and turnover intention. Explanations for the differences are discussed.

Traditional epistemic and doxastic logics cannot deal with inconsistent beliefs nor do they represent the evidence an agent possesses. So-called ‘evidence logics’ have been introduced to deal with both of those issues. The semantics of these logics are based on neighbourhood or hypergraph frames. The neighbourhoods of a world represent the basic evidence available to an agent. On one view, beliefs supported by evidence are propositions derived from all maximally consistent collections evidence. An alternative concept of beliefs takes them to (...) be propositions derivable from consistent partitions of one’s inconsistent evidence; this is known as Schotch-Jennings Forcing. This paper develops a modal logic based on the hypergraph semantics to represent Schotch-Jennings Forcing. The modal language includes an operator U(φ1,…,φn;ψ)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$U(\varphi _1, \ldots, \varphi _n;\psi )$$\end{document} which is similar to one introduced in Instantial Neighbourhood Logic. It is of variable arity and the input formulas enjoy distinct roles. The U operator expresses that all evidence at a particular world that supports ψ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\psi $$\end{document} can be supported by at least one of the φi\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varphi _i$$\end{document}s. U can then be used to express that all the evidence available can be unified by the finite set of formulas φ1,…,φn\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\varphi _1,\ldots, \varphi _n$$\end{document} if ψ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\psi $$\end{document} is taken to be ⊤\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\top $$\end{document}. Future developments will then use that semantics as the basis for a doxastic logic akin to evidence logics. (shrink)

Factors affecting transcriptional elongation have been characterized extensively in in vitro, single cell (yeast) and cell culture systems; however, data from the context of multicellular organisms has been relatively scarce. While studies in homogeneous cell populations have been highly informative about the underlying molecular mechanisms and prevalence of polymerase pausing, they do not reveal the biological impact of perturbing this regulation in an animal. The core components regulating pausing are expressed in all animal cells and are recruited to the majority (...) of genes, however, disrupting their function often results in discrete phenotypic effects. Mutations in genes encoding key regulators of transcriptional pausing have been recovered from several genetic screens for specific phenotypes or interactions with specific factors in mice, zebrafish and flies. Analysis of these mutations has revealed that control of transcriptional pausing is critical for a diverse range of biological pathways essential for animal development and survival. (shrink)

Using computer programs to correct English grammar can improve the efficiency of English grammar correction, improve the effect of error correction, and reduce the workload of manual error correction. In order to deal with and solve the problem of loss evaluation mismatch in the current mainstream machine translation, this study proposes the application of the deep learning method to propose an algorithm model with high error correction performance. Therefore, the framework of confrontation learning network is introduced to continuously improve the (...) optimization model parameters through the confrontation training of discriminator and generator. At the same time, convolutional neural network is introduced to improve the algorithm training effect, which can make the correction sentences generated by the model generator better in confrontation. In order to verify the performance of the algorithm model, P-value, R-value, F 0.5-value, and MRR-value were selected for the comprehensive evaluation of the model performance index. The simulation results of the CoNLL-2014 test set and Lang-8 test set show that the proposed algorithm model has significant performance improvement compared with the traditional transformer method and can correct the fluency of sentences. It has good application values. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...) in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

In many social contexts, social influence seems to be inescapable: the behavior of others influences us to modify ours, and vice-versa. However, social psychology is full of examples of phenomena where individuals experience a discrepancy between their public behavior and their private opinion. This raises two central questions. First, how does an individual reason about the behavior of others and their private opinions in situations of social influence? And second, what are the laws of the resulting information dynamics? In this (...) paper, we address these questions by introducing a formal framework for representing reasoning about an individual’s private opinions and public behavior under the dynamics of social influence in social networks. Moreover, we dig deeper into the involved information dynamics by modeling how individuals can learn about each other based on this reasoning. This compels us to introduce a new formal notion of reflective social influence. Finally, we initialize the work on proof theory and automated reasoning for our framework by introducing a sound and complete tableaux system for a fragment of our logic. Furthermore, this constitutes the first tableau system for the “Facebook logic” of J. Seligman, F. Liu, and P. Girard. (shrink)

From the beginning of the 16th century to the end of the 18th century, there were not less than ten philosophers who focused extensively on Venn’s ostensible analytical diagrams, as noted by modern historians of logic (Venn, Gardner, Baron, Coumet et al.). But what was the reason for early modern philosophers to use logic or analytical diagrams? Among modern historians of logic one can find two theses which are closely connected to each other: M. Gardner states that since the Middle (...) Ages certain logic diagrams were used just in order to teach “dull-witted students”. Therefore, logic diagrams were just a means to an end. According to P. Bernhard, the appreciation of logic diagrams had not started prior to the 1960s, therefore the fact that logic diagrams become an end the point of research arose very late. The paper will focus on the question whether logic resp. analytical diagrams were just means in the history of (early) modern logic or not. In contrast to Gardner, I will argue that logic diagrams were not only used as a tool for “dull-witted students”, but rather as a tool used by didactic reformers in early modern logic. In predating Bernhard’s thesis, I will argue that in the 1820s logic diagrams had already become a value in themselves in Arthur Schopenhauer’s lectures on logic, especially in proof theory. (shrink)

In a recent article in this journal, Eli Pitcovski puts forward a novel, explanation-based account of harm. We seek to show that Pitcovski’s account, and his arguments in favor of it, can be substantially improved. However, we also argue that, even thus improved, the account faces a dilemma. The dilemma concerns the question of what it takes for an event, E, to explain why a state, P, does not obtain. Does this require that P would have obtained if E had (...) not occurred? Pitcovski’s theory faces problems no matter how one answers that question. (shrink)

With the outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), global researchers were confronted with major challenges. The German National Pandemic Cohort Network (NAPKON) was launched in fall 2020 to effectively leverage resources and bundle research activities in the fight against the coronavirus disease 2019 (COVID-19) pandemic. We analyzed the setup phase of NAPKON as an example for multicenter studies in Germany, highlighting challenges and optimization potential in connecting 59 university and nonuniversity study sites. We examined the ethics application (...) process of 121 ethics submissions considering durations, annotations, and outcomes. Study site activation and recruitment processes were investigated and related to the incidence of SARS-CoV-2 infections. For all initial ethics applications, the median time to a positive ethics vote was less than two weeks and 30 of these study sites (65%) joined NAPKON within less than three weeks each. Electronic instead of postal ethics submission (9.5 days (Q1: 5.75, Q3: 17) vs. 14 days (Q1: 11, Q3: 26), p value = 0.01) and adoption of the primary ethics vote significantly accelerated the ethics application process. Each study center enrolled a median of 37 patients during the 14-month observation period, with large differences depending on the health sector. We found a positive correlation between recruitment performance and COVID-19 incidence as well as hospitalization incidence. Our analysis highlighted the challenges and opportunities of the federated system in Germany. Digital ethics application tools, adoption of a primary ethics vote and standardized formal requirements lead to harmonized and thus faster study initiation processes during a pandemic. (shrink)

Background: Although convolutional neural networks (CNNs) achieve high diagnostic accuracy for detecting Alzheimer’s disease (AD) dementia based on magnetic resonance imaging (MRI) scans, they are not yet applied in clinical routine. One important reason for this is a lack of model comprehensibility. Recently developed visualization methods for deriving CNN relevance maps may help to fill this gap as they allow the visualization of key input image features that drive the decision of the model. We investigated whether models with higher accuracy (...) also rely more on discriminative brain regions predefined by prior knowledge. Methods: We trained a CNN for the detection of AD in N = 663 T1-weighted MRI scans of patients with dementia and amnestic mild cognitive impairment (MCI) and verified the accuracy of the models via cross-validation and in three independent samples including in total N = 1655 cases. We evaluated the association of relevance scores and hippocampus volume to validate the clinical utility of this approach. To improve model comprehensibility, we implemented an interactive visualization of 3D CNN relevance maps, thereby allowing intuitive model inspection. Results: Across the three independent datasets, group separation showed high accuracy for AD dementia versus controls (AUC ≥ 0.91) and moderate accuracy for amnestic MCI versus controls (AUC ≈ 0.74). Relevance maps indicated that hippocampal atrophy was considered the most informative factor for AD detection, with additional contributions from atrophy in other cortical and subcortical regions. Relevance scores within the hippocampus were highly correlated with hippocampal volumes (Pearson’s r ≈ −0.86, p < 0.001). Conclusion: The relevance maps highlighted atrophy in regions that we had hypothesized a priori. This strengthens the comprehensibility of the CNN models, which were trained in a purely data-driven manner based on the scans and diagnosis labels. The high hippocampus relevance scores as well as the high performance achieved in independent samples support the validity of the CNN models in the detection of AD-related MRI abnormalities. The presented data-driven and hypothesis-free CNN modeling approach might provide a useful tool to automatically derive discriminative features for complex diagnostic tasks where clear clinical criteria are still missing, for instance for the differential diagnosis between various types of dementia. (shrink)

Background The ethical competence of head nurses plays a pivotal role in nursing ethics. Ethical climate is a prerequisite for ethical competence, and moral resilience can positively influence an individual’s ethical competence. However, few studies have focused on the relationship between ethical climate, moral resilience, and ethical competence among them. Objectives To investigate the relationship between ethical climate, moral resilience, and ethical competence, and examine the mediating role of moral resilience between ethical climate and ethical competence among head nurses. Design (...) A quantitative, cross-sectional study. Methods A total of 309 Chinese head nurses completed an online survey, including ethical climate questionnaire, Rushton moral resilience scale, and ethical competence questionnaire. Inferential statistical analysis includes Pearson’s correlation and a structural equation model. Ethical considerations This study received ethical approval from the Institutional Review Board of Xiangya Nursing School of Central South University (No. E2023146). Results Head nurses’ ethical climate score positively impacted ethical competence (r = 0.208, p <.001), and ethical climate could affect ethical competence through the mediating role of moral resilience. Conclusion This study emphasized the value of ethical climate in moral resilience of head nurses, ultimately leading to an enhancement in their ethical competence. (shrink)

Background Developing confident capacity for ethical decision-making is vital in nursing education. However, no tool examines nursing students’ competence in ethical decision-making. Aim This study aimed to develop an Ethical Decision-Making Competence Scale (EDM-CS) to assess ethical care decision-making competencies in nursing students. Participants and research context Original items were obtained by employing a focus group and the Delphi method. A cross-sectional design was used to confirm the items remained on the scale. Additionally, the scale’s reliability and validity were assessed. (...) The EDM-CS was completed by 498 nursing students. An exploratory factor analysis (EFA) was used to examine the factor structure based on data from group 1 ( n = 250). A second-order confirmatory factor analysis (CFA) was used to examine the model’s fitness based on data from group 2 ( n = 248). This study was conducted between August 2022 and July 2023. Ethical considerations The Institutional Review Board of Chung Shan Medical University Hospital approved this study’s design and procedure. Results From the original 34 items, nine were deleted in the EFA. Thus, the EDM-CS had 25 items and a four-factor structure (ethical judgement, ethical sensitivity, ethical motivation, and ethical action), which explained 60.97% of the total variance. A second-order CFA identified a second-order factor termed ‘ethical decision-making competence’ with 18 items (root mean square residual = 0.052). The EDM-CS scores correlated significantly and positively with the scores on the Scale of Protective Factor-24 (r = 0.47, p <.001), which indicated good convergent validity. Cronbach’s alpha coefficient of the final EDM-CS was 0.90 and ranged from 0.73 to 0.80 for the four subscales. Discussion and conclusion The EDM-CS was validated to fit the data adequately. It can be used to evaluate clinical nursing students’ ethical decision-making abilities and to develop education strategies to improve their ethical care competence. (shrink)

Since its debut in 1964, Jeopardy! has been one of America's favorite and longest-running daytime quiz shows. It turns the question-answer format of traditional quiz shows on its head and requires contestants to pose correct questions to answers in selected categories. While mining information and facts from Alchemy to Zoology, Jeopardy!, is a uniquely intellectual, erudite, and challenging daytime television program. Far beyond entertaining its fans with nail-biting contests of knowledge, memory, and speed, it all but requires them to participate. (...) Few people watch Jeopardy! without pressing an invisible button and blurting out questions to their TV screen. Because of this personal and intellectual investment, most Jeopardy! fans are devout. Watching the show is valued as a daily ritual in which genuine intellectual skill and encyclopedic knowledge are not only respected and placed in the spotlight, but also rewarded with national prestige and prize winnings. Champion Ken Jennings has won over three million dollars and remained champion seventy-four times. For those who embrace Jeopardy! as an intellectual oasis in the arid desert of popular culture, it is the geeks who shall inherit the earth. Jeopardy!'s celebration of intellect and forward-thinking is well recognized throughout popular culture and among all age groups. Ken Jennings, Chuck Forrest, and other all-time champions are near celebrities, while the show itself regularly reaches out through special tournaments to different segments of American culture, such as actors and musicians, high-school and college students and senior citizens. Still, despite its widespread respect and, some might complain, smug self-respect, neither the show nor its fans take themselves too seriously. Jokes about host Alex Trebek's hair and famous parodies of Jeopardy! on Saturday Night Live are as familiar as Weird Al Yankovic's MTV-mainstay "I Lost on Jeopardy!" : Don't know what I was thinkin' of, I guess I just wasn't too bright. Well, I sure hope I do better Next weekend on The Price Is Right. (shrink)

Natural scientists have proposed that humankind has entered a new geologic epoch. Termed the “Anthropocene,” this new reality revolves around the central role of human activity in multiple Earth ecosystems. That challenge requires a rethinking of social science explanations of organization and environment relationships. In this article, we discuss the need to politicize institutional theory as a means understanding “Anthropocene Society,” and in turn what that resultant society means for the Anthropocene in the natural environment. We modify the constitutive elements (...) of institutional orders and a set of main change mechanisms to explore three scenarios around which future Anthropocene Societies might be built—Collapsing Systems, Market Rules, and Cultural Re-Enlightenment. Simultaneously, we use observations from the Anthropocene to expose limitations in present institutional theory and propose extensions to remedy them. Overall, this article challenges organizational scholars to consider a new paradigm under which research in environmental sustainability and social sustainability takes place. (shrink)

Since the outbreak of the COVID-19 pandemic, the physical and mental health of older adults has been threatened. Promoting physical and mental health through physical activity has therefore become a strategy for healthy aging. In order to better understand the impact of the participation of older adults in physical activity, this paper selects different types of physical activity, and examines the relationship between them and subjective well-being through the analysis of the mediation effect of outdoor exercise environment and the regulating (...) effect of exercise form. In this cross-sectional study, a questionnaire survey was conducted in mainland China. The main data come from 903 older adults in five urban areas in Chengdu, Sichuan Province. The surveys were carried out using the Physical Activity Rating Scale, Newfoundland Subjective Well-Being Scale, Exercise Environment Scale, and Exercise Form Scale. SPSS was used for statistical analysis, linear regression analysis was adopted for processing data, and AMOS was used to establish a mediation model. The mediating variable is the outdoor exercise environment, and the moderating variable is exercise form; gender, age, education level, and monthly income were used as control variables. The study results showed that different physical activities were significantly, positively correlated with the subjective well-being of older adults ; among the activities, tai chi had the strongest effect on the subjective well-being of older adults. Outdoor exercise environment played a mediating role between different physical activity types and subjective well-being of older adults [tai chi: β = 0.030, 95% CI ; health qigong: β = 0.018, 95% CI ; walking and jogging: β = 0.034, 95% CI ]. Exercise form moderated the subjective well-being of older adults in different physical activities. The results of this study demonstrate that the outdoor exercise environment plays a mediating role between different physical activities and the subjective well-being of older adults, and the form of exercise can also moderate the impact of different physical activities on the subjective well-being of older adults. This study has enlightening significance for psychological intervention with older adults facing stress, anxiety and depression. (shrink)

Sijak hanŭn mal -- 1. T'ŭraemp'ŏllin wi ŭi saramdŭl -- 2. Ch'ŏrhak iranŭn chagŭn sae -- 3. Ch'ŏrhak ŭi sadari sai ro -- Mach'inŭn mal.

潘知常(1956- ),湖南醴陵人,南京大学中文系副教授、中华全国青年联合会委员等.

We analyse the extent of possible computations following Hogarth ([2004]) conducted in Malament–Hogarth (MH) spacetimes, and Etesi and Németi ([2002]) in the special subclass containing rotating Kerr black holes. Hogarth ([1994]) had shown that any arithmetic statement could be resolved in a suitable MH spacetime. Etesi and Németi ([2002]) had shown that some relations on natural numbers that are neither universal nor co-universal, can be decided in Kerr spacetimes, and had asked specifically as to the extent of computational limits there. (...) The purpose of this note is to address this question, and further show that MH spacetimes can compute far beyond the arithmetic: effectively Borel statements (so hyperarithmetic in second-order number theory, or the structure of analysis) can likewise be resolved: Theorem A. If H is any hyperarithmetic predicate on integers, then there is an MH spacetime in which any query ? n H ? can be computed. In one sense this is best possible, as there is an upper bound to computational ability in any spacetime, which is thus a universal constant of that spacetime. Theorem C. Assuming the (modest and standard) requirement that spacetime manifolds be paracompact and Hausdorff, for any spacetime there will be a countable ordinal upper bound, , on the complexity of questions in the Borel hierarchy computable in it. Introduction 1.1 History and preliminaries Hyperarithmetic Computations in MH Spacetimes 2.1 Generalising SADn regions 2.2 The complexity of questions decidable in Kerr spacetimes An Upper Bound on Computational Complexity for Each Spacetime CiteULike Connotea Del.icio.us What's this? (shrink)

We look at various notions of a class of definability operations that generalise inductive operations, and are characterised as “revision operations”. More particularly we: (i) characterise the revision theoretically definable subsets of a countable acceptable structure; (ii) show that the categorical truth set of Belnap and Gupta’s theory of truth over arithmetic using \emph{fully varied revision} sequences yields a complete \Pi13 set of integers; (iii) the set of \emph{stably categorical} sentences using their revision operator ψ is similarly \Pi13 and which (...) is complete in Gödel’s universe of constructible sets L; (iv) give an alternative account of a theory of truth—realistic variance that simplifies full variance, whilst at the same time arriving at Kripkean fixed points. (shrink)

In recent years, the "science of science" has combined computational methods with novel data sources in order to understand the dynamics of research communities. As the name suggests, science of science is primarily focused on science and technology, with less attention to the humanities. However, many of the questions investigated by science of science are also relevant to academic philosophy: To what extent can the discipline be divided into subfields with different methods and topics? How are prestige and credit distributed (...) across the discipline? And how do these factors interact with other factors, such as gender, to shape job market outcomes? In this paper, we provide some empirically-informed answers to these questions by applying computational methods to job market data for Anglophone academic philosophy. We find, first, evidence that is consistent with the analytic-continental divide, but is also consistent with other, more complex ways of organizing academic philosophy into distinct intellectual traditions; second, a clear prestige hierarchy, dividing PhD programs into two distinct prestige categories; and third, evidence that gender, prestige, and country have notable effects on academic job market outcomes for recent philosophy PhDs. (shrink)