Showing papers on "Perspective (graphical) published in 2012"

Perspective on density functional theory

Abstract: Density functional theory (DFT) is an incredible success story. The low computational cost, combined with useful (but not yet chemical) accuracy, has made DFT a standard technique in most branches of chemistry and materials science. Electronic structure problems in a dazzling variety of fields are currently being tackled. However, DFT has many limitations in its present form: too many approximations, failures for strongly correlated systems, too slow for liquids, etc. This perspective reviews some recent progress and ongoing challenges.

Online Dating A Critical Analysis From the Perspective of Psychological Science

Abstract: Online dating sites frequently claim that they have fundamentally altered the dating landscape for the better. This article employs psychological science to examine (a) whether online dating is fundamentally different from conventional offline dating and (b) whether online dating promotes better romantic outcomes than conventional offline dating. The answer to the first question (uniqueness) is yes, and the answer to the second question (superiority) is yes and no. To understand how online dating fundamentally differs from conventional offline dating and the circumstances under which online dating promotes better romantic outcomes than conventional offline dating, we consider the three major services online dating sites offer: access, communication, and matching. Access refers to users' exposure to and opportunity to evaluate potential romantic partners they are otherwise unlikely to encounter. Communication refers to users' opportunity to use various forms of computer-mediated communication (CMC) to interact with specific potential partners through the dating site before meeting face-to-face. Matching refers to a site's use of a mathematical algorithm to select potential partners for users. Regarding the uniqueness question, the ways in which online dating sites implement these three services have indeed fundamentally altered the dating landscape. In particular, online dating, which has rapidly become a pervasive means of seeking potential partners, has altered both the romantic acquaintance process and the compatibility matching process. For example, rather than meeting potential partners, getting a snapshot impression of how well one interacts with them, and then slowly learning various facts about them, online dating typically involves learning a broad range of facts about potential partners before deciding whether one wants to meet them in person. Rather than relying on the intuition of village elders, family members, or friends or to select which pairs of unacquainted singles will be especially compatible, certain forms of online dating involve placing one's romantic fate in the hands of a mathematical matching algorithm. Turning to the superiority question, online dating has important advantages over conventional offline dating. For example, it offers unprecedented (and remarkably convenient) levels of access to potential partners, which is especially helpful for singles who might otherwise lack such access. It also allows online daters to use CMC to garner an initial sense of their compatibility with potential partners before deciding whether to meet them face-to-face. In addition, certain dating sites may be able to collect data that allow them to banish from the dating pool people who are likely …

Employee voice behavior: A meta-analytic test of the conservation of resources framework

Abstract: Summary Although voice (ie expressing change-oriented ideas and suggestions) has frequently been investigated as a way for workers to reciprocate to their employers for the positive treatment they receive, much less is known about how workers use voice to deal with stress This study takes a conservation of resources perspective to examine the relationships among workplace stress, voice behavior, and job performance We first examined the strength of relationships of three major groups of workplace stressors and strains (job based, social based, and organization based) with voice behavior We then examined the relationships of voice behavior with performance variables (eg in-role performance and creativity) to investigate how voice may help workers preserve or accumulate resources to enhance their performance The meta-analytic findings presented here provide support for a negative relationship between workplace stress and voice and a positive relationship between voice behavior and performance outcomes Copyright © 2011 John Wiley & Sons, Ltd

Behavioral priming: it's all in the mind, but whose mind?

Abstract: The perspective that behavior is often driven by unconscious determinants has become widespread in social psychology. Bargh, Chen, and Burrows' (1996) famous study, in which participants unwittingly exposed to the stereotype of age walked slower when exiting the laboratory, was instrumental in defining this perspective. Here, we present two experiments aimed at replicating the original study. Despite the use of automated timing methods and a larger sample, our first experiment failed to show priming. Our second experiment was aimed at manipulating the beliefs of the experimenters: Half were led to think that participants would walk slower when primed congruently, and the other half was led to expect the opposite. Strikingly, we obtained a walking speed effect, but only when experimenters believed participants would indeed walk slower. This suggests that both priming and experimenters' expectations are instrumental in explaining the walking speed effect. Further, debriefing was suggestive of awareness of the primes. We conclude that unconscious behavioral priming is real, while real, involves mechanisms different from those typically assumed to cause the effect.

The network takeover

Abstract: Reductionism, as a paradigm, is expired, and complexity, as a field, is tired. Data-based mathematical models of complex systems are offering a fresh perspective, rapidly developing into a new discipline: network science.

Entrepreneurial orientation in family firms: a generational perspective

Abstract: We adopt a generational perspective to investigate entrepreneurial orientation (EO) in family firms. We test a model that determines how the influence on EO of external factors and internal factors differs in first-, second- and third-and-beyond-generation family firms. We argue that while the founder is vital in the first generation, EO is more subject to interpretations of the competitive environment in the second generation and that in the third generation and beyond, access to non-family resources drives EO to a greater extent. Our findings show that perceptions of the competitive environment and EO correlate differently in family firms, depending on the generation in charge, and it is generally stronger in second-generation family firms. Further, we find that non-family managers on the top management team makes a positive difference for EO only in the third-generation and beyond family firms. The significance of non-family investors’ on EO is particularly strong in third-generation-and-beyond firms.

WU-Minn HCP consortium: the human connectome project: a data acquisition perspective

Abstract: The Human Connectome Project (HCP) is an ambitious 5-year effort to characterize brain connectivity and function and their variability in healthy adults. This review summarizes the data acquisition plans being implemented by a consortium of HCP investigators who will study a population of 1200 subjects (twins and their non-twin siblings) using multiple imaging modalities along with extensive behavioral and genetic data. The imaging modalities will include diffusion imaging (dMRI), resting-state fMRI (R-fMRI), task-evoked fMRI (T-fMRI), T1- and T2-weighted MRI for structural and myelin mapping, plus combined magnetoencephalography and electroencephalography (MEG/EEG). Given the importance of obtaining the best possible data quality, we discuss the efforts underway during the first two years of the grant (Phase I) to refine and optimize many aspects of HCP data acquisition, including a new 7T scanner, a customized 3T scanner, and improved MR pulse sequences.

Material Participation: Technology, the Environment and Everyday Publics

Abstract: What is the role of things in political participation? This book, now in paperback, develops a fresh perspective on the role of everyday objects, technology and settings in engagement, proposing that they enable a distinctive form of involvement: material participation. The book contributes to wider debates about democracy and materiality, but it also offers empirical analyses of particular objects and devices of material engagement: smart energy meters, environmental show homes and sustainable living gadgets. Material Participation brings social studies of science and technology (STS) into conversation with political theory in order to develop a novel approach to the analysis of specifically material forms of participation. In doing so, it explores the next steps to be taken in studies of participation, technology and the environment, focusing our critical, empirical and creative attention squarely on the materials and devices of the public.

Strengths-Based Cognitive–Behavioural Therapy: A Four-Step Model to Build Resilience

Abstract: Padesky and Mooney's four-step Strengths-Based cognitive-behavioural therapy (CBT) model is designed to help clients build positive qualities. This article shows how it can be used to build and strengthen personal resilience. A structured search for client strengths is central to the approach, and methods designed to bring hidden strengths into client awareness are demonstrated through therapist-client dialogues. Development of positive qualities requires a shift in therapy perspective and different therapy methods from those employed when therapy is designed to ameliorate distress. Required adjustments to classic CBT are highlighted with specific recommendations for clinical modifications designed to support client development of resilience such as a focus on current strengths, the constructive use of imagery and client-generated metaphors. Although the focus of this article is on resilience, this Strengths-Based CBT model offers a template that also can be used to develop other positive human qualities.

Identification as a Mechanism of Narrative Persuasion

Abstract: To provide a causal test of identification as a mechanism of narrative persuasion, this study uses the perspective from which a story is told to manipulate identification experimentally and test effects on attitudes. In experiment 1, 120 participants read a story that was told either from the perspective of one character or another character, with both characters having opposing goals. Results showed that perspective influenced identification and story consistency of attitudes. Moreover, identification with one of the characters mediated the effect of perspective on attitudes. In experiment 2, 200 participants read a different story that was told from one of two perspectives, with both characters having opposing opinions. Results showed that identification with both characters mediated the effect of perspective on attitudes. The results of these experiments indicate that identification can be a mechanism of narrative persuasion.

Epistemic Justice as a Virtue of Social Institutions

Abstract: In Epistemic injustice, Miranda Fricker makes a tremendous contribution to theorizing the intersection of social epistemology with theories of justice. Theories of justice often take as their object of assessment either interpersonal transactions (specific exchanges between persons) or particular institutions. They may also take a more comprehensive perspective in assessing systems of institutions. This systemic perspective may enable control of the cumulative effects of millions of individual transactions that cannot be controlled at the individual or institutional levels. This is true not only with respect to the overall distribution of such goods as income and wealth, but also with respect to the goods of testimonial and hermeneutical justice. Cognitive biases that may be difficult for even epistemically virtuous individuals to correct on their own may be more susceptible to correction if we focus on the principles that should govern our systems of testimonial gathering and assessment. Hence, while Fri...

Is This Review Believable? A Study of Factors Affecting the Credibility of Online Consumer Reviews from an ELM Perspective

Abstract: Research Article Cindy Man-Yee Cheung City University of Hong Kong manmanmui@gmail.com Choon-Ling Sia City University of Hong Kong iscl@cityu.edu.hk Kevin K. Y. Kuan City University of Hong Kong kkykuan@cityu.edu.hk With the ever-increasing popularity of online consumer reviews, understanding what makes an online review believable has attracted increased attention from both academics and practitioners. Drawing on the elaboration likelihood model (ELM), this study examines four information cues used to evaluate the credibility of online reviews: Argument quality, source credibility, review consistency, and review sidedness, under different levels of involvement and expertise. We conducted an online survey that involved users of Epinions.com, a popular online consumer review website, to test the research model empirically. Consistent with previous research, the results reveal that argument quality, a central cue, was the primary factor affecting review credibility. Participants also relied on peripheral cues such as source credibility, review consistency, and review sidedness when evaluating online consumer reviews. Review sidedness had a stronger impact on review credibility when the recipient had a low involvement level and a high expertise level. However, the other interaction effects were not significant. We discuss the theoretical and practical implications of these results.

Sense of place in environmental education

Abstract: Although environmental education research has embraced the idea of sense of place, it has rarely taken into account environmental psychology-based sense of place literature whose theory and empirical studies can enhance related studies in the education context. This article contributes to research on sense of place in environmental education from an environmental psychology perspective. We review the components of sense of place, including place attachment and place meanings. Then we explore the logic and evidence suggesting a relationship between place attachment, place meanings, pro-environmental behavior, and factors influencing sense of place. Finally, based on this literature we propose that in general environmental education can influence sense of place through a combination of direct place experiences and instruction.

The Explicit and Implicit Use of the Scripting Perspective in Sex Research

Abstract: (1990). The Explicit and Implicit Use of the Scripting Perspective in Sex Research. Annual Review of Sex Research: Vol. 1, No. 1, pp. 1-43.

Intra-urban human mobility patterns: An urban morphology perspective

Abstract: This paper provides a new perspective on human motion with an investigation of whether and how patterns of human mobility inside cities are affected by two urban morphological characteristics: compactness and size. Mobile phone data have been collected in eight cities in Northeast China and used to extract individuals’ movement trajectories. The massive mobile phone data provides a wide coverage and detailed depiction of individuals’ movement in space and time. Considering that most individuals’ movement is limited within particular urban areas, boundaries of urban agglomerations are demarcated based on the spatial distribution of mobile phone base towers. Results indicate that the distribution of human’s intra-urban travel in general follows the exponential law. The exponents, however, vary from city to city and indicate the impact of city sizes and shapes. Individuals living in large or less compact cities generally need to travel farther on a daily basis, and vice versa. A Monte Carlo simulation analysis based on Levy flight is conducted to further examine and validate the relation between intra-urban human mobility and urban morphology.

The Psychology of Risk

Abstract: Preface of Claude Got Introduction & definitions Definition of risk The psychological perspective The biological perspective The contextual perspective Conclusion Bibliography Index.

Educational Differences in U.S. Adult Mortality: A Cohort Perspective.

Abstract: We use hierarchical cross-classified random-effects models to simultaneously measure age, period, and cohort patterns of mortality risk between 1986 and 2006 for non-Hispanic white and non-Hispanic...

Sexual selection is a form of social selection

Abstract: Social selection influences the evolution of weapons, ornaments and behaviour in both males and females. Thus, social interactions in both sexual and non-sexual contexts can have a powerful influence on the evolution of traits that would otherwise appear to be detrimental to survival. Although clearly outlined by West-Eberhard in the early 1980s, the idea that social selection is a comprehensive framework for the study of ornaments and weapons has largely been ignored. In West-Eberhard's view, sexual selection is a form of social selection—a concept supported by several lines of evidence. Darwin's distinction between natural and sexual selection has been useful, but recent confusion about the limits of sexual selection suggests that some traits are not easily categorized as naturally or sexually selected. Because social selection theory has much to offer the current debates about both sexual selection and reproductive competition in females, it is sometimes viewed, narrowly, to be most useful when considering female roles. However, social selection theory encompasses much more than female reproductive competition. Our goal here was to provide that broader perspective.

Learning Through Constructing Representations in Science: A framework of representational construction affordances

Abstract: Compared with research on the role of student engagement with expert representations in learning science, investigation of the use and theoretical justification of student-generated representations to learn science is less common. In this paper, we present a framework that aims to integrate three perspectives to explain how and why representational construction supports learning in science. The first or semiotic perspective focuses on student use of particular features of symbolic and material tools to make meanings in science. The second or epistemic perspective focuses on how this representational construction relates to the broader picture of knowledge-building practices of inquiry in this disciplinary field, and the third or epistemological perspective focuses on how and what students can know through engaging in the challenge of representing causal accounts through these semiotic tools. We argue that each perspective entails productive constraints on students’ meaning-making as they construct and int...

The Development of the Hierarchy of Effects: An Historical Perspective

Abstract: (1987). The Development of the Hierarchy of Effects: An Historical Perspective. Current Issues and Research in Advertising: Vol. 10, No. 1-2, pp. 251-295.

Spatial models for context-aware indoor navigation systems: A survey

Abstract: This paper surveys indoor spatial models developed for research fields ranging from mobile robot mapping, to indoor location-based services (LBS), and most recently to context-aware navigation services applied to indoor environments. Over the past few years, several studies have evaluated the potential of spatial models for robot navigation and ubiquitous computing. In this paper we take a slightly different perspective, consid- ering not only the underlying properties of those spatial models, but also to which degree the notion of context can be taken into account when delivering services in indoor environ- ments. Some preliminary recommendations for the development of indoor spatial models are introduced from a context-aware perspective. A taxonomy of models is then presented and assessed with the aim of providing a flexible spatial data model for navigation pur- poses, and by taking into account the context dimensions.

Happy People or Happy Places? A Multilevel Modeling Approach to the Analysis of Happiness and Well-Being

Abstract: This article aims to add a regional science perspective and a geographical dimension to our understanding of substantive questions regarding self-reported happiness and well-being through the speci...

Egocentrism and automatic perspective taking in children and adults.

Abstract: Children (aged 6–10) and adults (total N = 136) completed a novel visual perspective-taking task that allowed quantitative comparisons across age groups. All age groups found it harder to judge the other person’s perspective when it differed from their own. This egocentric interference did not decrease with age, even though, overall, performance improved. In addition, it was more difficult to judge one’s own perspective when it differed from that of the other person, suggesting that the other’s perspective was processed even though it interfered with self-perspective judgments. In a logically equivalent, nonsocial task, the same degree of interference was not observed. These findings are discussed in relation to recent findings suggesting precocious theory-of-mind abilities in infancy.