A Two Dimensional Tense-modal Sortal Logic

We consider a formal language whose logical syntax involves both modal and tense propositional operators, as well as sortal quantifiers, sortal identities and (second order) quantifiers over sortals. We construct an intensional semantics for the language and characterize a formal logical system which we prove to be sound and complete with respect to the semantics. Conceptualism is the philosophical background of the semantic system.     

Interethnic Factors as Predictors of the Subjective Well‐Being of Minority Individuals in a Context of Recent Societal Changes

Our research examined the impact of contextual intergroup variables on the subjective well‐being of ethnic Russians in Estonia (N = 190) who have experienced major social changes with the demise of the Soviet Union. A mediational model was tested where aspects of intergroup relations (i.e., relative deprivation, status legitimization, and temporal comparisons) acted as mediators of the influence of cultural identity and representations of history on subjective well‐being. Preliminary analyses indicated polemical representations of history in which Estonian historical narratives are established around the struggle for independence, and Russian representations of history are consolidated around victory in World War II. Mediation analyses demonstrated that the importance of Russian history increased the perceptions of relative deprivation, status delegitimization, and the frequency of temporal comparisons, which negatively affected life satisfaction. At the same time, the importance of Estonian history led to positive perceptions of the intergroup situation and, in turn, to greater subjective well‐being. The effect of Russian identity on well‐being was mediated by delegitimizing beliefs, but not by relative deprivation and temporal comparisons. Estonian identity did not exert a significant effect on the proposed mediators. The research demonstrates the salience of the effects of contextual intergroup factors on subjective well‐being, and the article discusses implications for the study of intergroup relations and subjective well‐being.     

客体相似性对不同认知方式个体视觉工作记忆表征的影响

采用整体检测的变化察觉范式,探讨客体的相似性对客体—空间型认知方式个体视觉工作记忆表征的影响。行为结果显示,在不相似客体的视觉工作记忆表征任务中,客体型者在长延时条件的成绩优于空间型者,而在相似客体的视觉工作记忆表征任务中,两者无差异;ERP结果显示,在不相似客体视觉工作记忆表征任务中,与客体型者相比,空间型者在大脑皮层诱发出更大的负SP。以上结果表明,客体型者比空间型者对不相似客体视觉工作记忆加工具有优势,其潜在机制可能在于,客体型者对不相似客体视觉工作记忆表征时的神经活动效能更高。     

No Lake Wobegon in Beijing? The impact of culture on the perception of relative ranking

A prominent example in the literature on relative ranking is the “better‐than‐average” effect: that people have a general tendency to view themselves in a positive light and think they are above average. The current paper evaluates whether such biases are specific to culture. In Experiment 1, Americans exhibited a larger better‐than‐average effect than Chinese. In Experiment 2, the study was designed to understand what drives this cultural difference. Estimates of relative standing for Americans relied more on perceptions of their own ability compared to those for Chinese participants. Relatively structured questions (experimental manipulation of the question frame) facilitate Americans making better judgments but not Chinese, supporting the hypothesis that relative‐ranking estimates are influenced by the degree to which other (vs. self) information is used cross‐culturally.     

A Decision Support System for Prioritizing Investments in an Energy Efficiency Program in Favelas in the City of Rio de Janeiro

This study proposes an integrated qualitative and quantitative assessment of expert opinions aiming at ranking a set of five shantytowns (favelas) located in the city of Rio de Janeiro. These communities are candidates for investments in an energy efficiency program implemented by the local electric utility company. The city, state, and federal governments want to eliminate domination of these areas by organized criminal gangs and present the city as a peaceful metropolis while hosting two big sports events: the soccer World Cup in 2014 and the Olympic Games in 2016. In recent years, some favelas were chosen to be prototypes for an ambitious project to reshape Rio de Janeiro. This involves first sending in special tactics police to drive drug gangs out, then installing the Pacifying Police Unit in the favela. Once security has been established, it is possible to improve general living conditions in these areas, including by providing public services such as health clinics, formal electricity connections and cable television. The core of the energy efficiency program was to convert informal customers to formal ones, because such communities were responsible for approximately 40% of the commercial losses (stolen energy) in the city. The model specification presented in this paper was set up with ten relevant criteria for decision making, identified through an in‐depth interview with the decision maker. The relative importance of the criteria and the performance of each favela regarding each criterion were measured by the Simos method. The preferences resulting from this method were translated into a nine‐point scale. The imprecision of subjective judgment was partially compensated by using a fuzzy analytical hierarchy process. Some criteria were ordinal, such as ‘Fair Relationship with the Community’ and ‘Complexity to Rebuild the Distribution Lines’, whereas other were cardinal, like ‘Percentage of Clients in Default’ and ‘Commercial Loss Due to Energy Theft’. At the end, the model was efficient in ranking the five favelas, therefore contributing to a rational and transparent approach for capital investment in social projects. Copyright © 2014 John Wiley & Sons, Ltd.     

情绪智力对农村小学校长职业倦怠的影响：领导效能和工作满意度的链式中介作用

为考察领导效能、工作满意度在情绪智力与农村小学校长职业倦怠关系中的链式中介效应,采用情绪智力量表、领导效能量表、工作满意度量表和职业倦怠量表对258名农村小学校长进行调查。结果表明：（1）情绪智力会负向预测农村小学校长职业倦怠;（2）领导效能是情绪智力与农村小学校长职业倦怠之间的中介变量;（3）工作满意度是领导效能与农村小学校长职业倦怠之间的中介变量。因此,领导效能和工作满意度在情绪智力与农村小学校长职业倦怠之间起链式中介作用,这些结果对于农村小学校长职业倦怠的预防与干预具有重要的价值。     

Intelligence is differentially related to neural effort in the task-positive and the task-negative brain network

Previous studies on individual differences in intelligence and brain activation during cognitive processing focused on brain regions where activation increases with task demands (task-positive network, TPN). Our study additionally considers brain regions where activation decreases with task demands (task-negative network, TNN) and compares effects of intelligence on neural effort in the TPN and the TNN. In a sample of 52 healthy subjects, functional magnetic resonance imaging was used to determine changes in neural effort associated with the processing of a working memory task. The task comprised three conditions of increasing difficulty: (a) maintenance, (b) manipulation, and (c) updating of a four-letter memory set. Neural effort was defined as signal increase in the TPN and signal decrease in the TNN, respectively. In both functional networks, TPN and TNN, neural effort increased with task difficulty. However, intelligence, as assessed with Raven's Matrices, was differentially associated with neural effort in the TPN and TNN. In the TPN, we observed a positive association, while we observed a negative association in the TNN. In terms of neural efficiency (i.e., task performance in relation to neural effort expended on task processing), more intelligent subjects (as compared to less intelligent subjects) displayed lower neural efficiency in the TPN, while they displayed higher neural efficiency in the TNN. The results illustrate the importance of differentiating between TPN and TNN when interpreting correlations between intelligence and fMRI measures of brain activation. Importantly, this implies the risk of misinterpreting whole brain correlations when ignoring the functional differences between TPN and TNN.     

Do historic threats to the group diminish identity fusion and its correlates?

We examined the reactions of Spanish participants to three negative historic events: a corruption scandal involving the Royal Family and two separatist efforts by a prosperous region of Spain. Although average fusion scores declined following these events, these declines were limited to sentiments toward the group category – collective ties-; they did not tarnish sentiments toward individual group members – relational ties. Moreover, strongly fused persons continued committed to remain in the group and act agentically by fighting and dying for it. Finally, rank orderings of fusion scores remained stable. These findings demonstrate that negative events weaken some aspects of alignment with the group, including collective ties and fusion, but not other aspects, such as relational ties and endorsement of pro-group behaviors.     

Tunable wave-vector filtering in a two-dimensional electron gas modulated by magnetic barriers and δ-doping

We report a theoretical investigation on the control of wave-vector filtering (WVF) in a two-dimensional electron gas modulated by realistic magnetic barriers and δ-doping, which can be experimentally realised by depositing a ferromagnetic stripe on the surface of a GaAs/Al_xGa_1?xAs heterostructure and using atomic layer doping. Theoretical analysis demonstrates that a sizeable WVF effect still exists even if δ-doping is introduced into the device. Numerical calculation reveals that the WVF efficiency is related closely to the δ-doping. Thus, the WVF effect in a magnetic nanostructure can be conveniently manipulated by properly adjusting the weight and/or the position of the δ-doping, giving rise to a tunable momentum filter for nanoelectronics applications.