Emission Spectroscopy-Based Sensor System to Correlate the In-Cylinder Combustion Temperature of a Diesel Engine to NOx Emissions.

Due to a rising importance of the reduction of pollutant, produced by conventional energy technologies, the knowledge of pollutant forming processes during a combustion is of great interest. In this study the in-cylinder temperature, of a near series diesel engine, is examined with a minimal invasive emission spectroscopy sensor. The soot, nearly a black body radiator, emits light, which is spectrally detected and evaluated with a modified function of Planck's law. The results show a good correlation between the determined temperatures and the NOx concentration, measured in the exhaust gas of the engine, during a variety of engine operating points. A standard deviation between 25 K and 49 K was obtained for the in-cylinder temperature measurements.

How positive and negative intergroup contact jointly inform minority support for social change: The role of system-fairness beliefs.

Research suggests that positive contact with majorities may 'sedate' (undermine) minority support for social change, while negative contact may promote it. However, most studies to date have examined both forms of contact separately, which may not give an accurate picture of their effects. This study examines the joint effects and interplay of positive and negative contact on minority support for social change, and the role of system-fairness beliefs across seven ethnic minority samples in six countries (N = 790). Multigroup Structural Equation Modelling showed that negative contact predicted higher minority support for social change. Positive contact predicted both less support for social change indirectly via enhanced system-fairness beliefs, and more support for social change directly. Except for one national context, the total effects of positive contact were either non-significant or significantly positive. This shows that increased system-fairness beliefs can explain sedative effects of positive contact, and that positive contact may also promote support for social change. We conclude that sedative effects of positive contact may be overestimated by not considering negative contact.

Cross-valence inhibition in forming and retrieving ambivalent attitudes.

Many things in life are ambivalent, and it might sometimes be useful or necessary to ignore their positive attributes when judging their negative attributes and vice versa. Cross-valence inhibition may complicate this task, leading people to underestimate the positive and negative attributes of ambivalent stimuli. In three studies (total N = 155), participants learned to associate combined evaluative information (gains and losses) with attributes of unfamiliar objects (size and colour of Chernoff faces). Participants then estimated (Studies 1-3) or experienced and recalled (Study 3) the gains and losses associated with novel ambivalent attribute combinations. As predicted, both in estimation and recall, participants rated gains (losses) to be lower, the higher the losses (gains) associated with the stimulus. The effect occurred only when the two attributes were evaluatively conflicting (Study 2). Cross-valence inhibition might lead to maladaptive behaviour when positive and negative attributes are in fact separable in hedonic experience.

Support for Social Change Among Members of Advantaged Groups: The Role of a Dual Identity Representation and Accepting Intergroup Contact.

This preregistered research analyzed survey data from ethnic and religious advantaged groups in 12 countries (N = 2,304) to examine the interplay between two determinants of support for social change toward intergroup equality. Drawing on the needs-based model and the common-ingroup identity model, we hypothesized that the experience of accepting intergroup contact and the endorsement of a dual identity representation of intergroup relations would be associated with greater support for equality. Furthermore, integrating the logic of both models, we tested the novel hypothesis that the positive effect of accepting contact on support for equality would be stronger under a high (vs. low) dual identity representation. While the predicted main effects received empirical support, we found no evidence for the expected interaction. These findings suggest that interventions to foster support for social change among advantaged group members can promote accepting contact and a dual identity representation independently of each other.

Gender bias in the evaluation of interns in different medical specialties: An archival study.

INTRODUCTION: The field of medicine is characterized by within-field gender segregation: Gender ratios vary systematically by subdisciplines. This segregation might be, in part, due to gender bias in the assessment of women and men medical doctors. METHODS: We examined whether the assessments, i.e. overall score, department scores and skills scores, interns receive by their superiors during their internship year, vary as a function of their gender and the representation of women in the field. We analyzed an archival data set from a large hospital in Israel which included 3326 assessments that were given to all interns who completed their internship year between 2015 and 2019. RESULTS: Women received lower department scores and skills scores in fields with a low (versus high) representation of women. Men received higher scores in fields with a high (versus low) representation of men, yet there was no difference in their skills scores. CONCLUSIONS: Women are evaluated more negatively in fields with a low representation of women doctors. Similarly, men are evaluated more negatively in fields with a low representation of men, yet this cannot be explained by their skills. This pattern of results might point to a gender bias in assessments. A better understanding of these differences is important as assessments affect interns' career choices and options.

Understanding responses to an organizational takeover: Introducing the social identity model of organizational change.

This paper presents a Social Identity Model of Organizational Change (SIMOC) and tests this in the context of employees' responses to a corporate takeover. This model suggests that employees will identify with the newly emerging organization and adjust to organizational change more successfully the more they are able to maintain their pre-existing social identity (an identity maintenance pathway) or to change understanding of their social identity in ways that are perceived as constituting identity gain (an identity gain pathway). We examine this model in the context of an acquisition in the pharmaceutical industry where 225 employees were surveyed before the implementation of the organizational change and then again 18 months later. In line with SIMOC, pre-change identification predicted post-change identification and a variety of beneficial adjustment outcomes for employees (including job satisfaction, organizational citizenship behavior, lower depression, satisfaction with life, and post-traumatic growth) to the extent that either (a) they experienced a sense of identity continuity or (b) their supervisors engaged in identity leadership that helped to build a sense that they were gaining a new positive identity. Results showed a negative impact of pre-change organizational identification on post-change identification and various adjustment outcomes if both pathways were inaccessible, thereby contributing to employees' experience of social identity loss. Discussion focuses on the ways in which organizations and their leaders can better manage organizational change and associated identity transition. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Need satisfaction in intergroup contact: A multinational study of pathways toward social change.

What role does intergroup contact play in promoting support for social change toward greater social equality? Drawing on the needs-based model of reconciliation, we theorized that when inequality between groups is perceived as illegitimate, disadvantaged group members will experience a need for empowerment and advantaged group members a need for acceptance. When intergroup contact satisfies each group's needs, it should result in more mutual support for social change. Using four sets of survey data collected through the Zurich Intergroup Project in 23 countries, we tested several preregistered predictions, derived from the above reasoning, across a large variety of operationalizations. Two studies of disadvantaged groups (Ns = 689 ethnic minority members in Study 1 and 3,382 sexual/gender minorities in Study 2) support the hypothesis that, after accounting for the effects of intergroup contact and perceived illegitimacy, satisfying the need for empowerment (but not acceptance) during contact is positively related to support for social change. Two studies with advantaged groups (Ns = 2,937 ethnic majority members in Study 3 and 4,203 cis-heterosexual individuals in Study 4) showed that, after accounting for illegitimacy and intergroup contact, satisfying the need for acceptance (but also empowerment) is positively related to support for social change. Overall, findings suggest that intergroup contact is compatible with efforts to promote social change when group-specific needs are met. Thus, to encourage support for social change among both disadvantaged and advantaged group members, it is essential that, besides promoting mutual acceptance, intergroup contact interventions also give voice to and empower members of disadvantaged groups. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Can conditionals explain explanations? A modus ponens model of B because A.

We suggest a normative model for the evaluation of explanations B because A based on probabilistic conditional reasoning and compare it with empirical data. According to the modus ponens model of explanations, the probability of B because A should equal the joint probability of the conditional if A then B and the explanans A. We argue that B because A expresses the conjunction of A and B as well as positive relevance of A for B. In Study 1, participants (N = 80) judged the subjective probabilities of 20 sets of statements with a focus on belief-based reasoning under uncertainty. In Study 2, participants (N = 376) were assigned to one of six item sets for which we varied the inferential relevance of A for B to explore boundary conditions of our model. We assessed the performance of our model across a range of analyses and report results on the Equation, a fundamental model in research on probabilistic reasoning concerning the evaluation of conditionals. In both studies, results indicate that participants' belief in statements B because A followed model predictions systematically. However, a sizeable proportion of sets of beliefs contained at least one incoherence, indicating deviations from the norms of rationality suggested by our model. In addition, results of Study 2 lend support to the idea that inferential relevance may be relevant for the evaluation of both conditionals and explanations.

Author Correction: A large-scale test of the link between intergroup contact and support for social change.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

A large-scale test of the link between intergroup contact and support for social change.

Guided by the early findings of social scientists, practitioners have long advocated for greater contact between groups to reduce prejudice and increase social cohesion. Recent work, however, suggests that intergroup contact can undermine support for social change towards greater equality, especially among disadvantaged group members. Using a large and heterogeneous dataset (12,997 individuals from 69 countries), we demonstrate that intergroup contact and support for social change towards greater equality are positively associated among members of advantaged groups (ethnic majorities and cis-heterosexuals) but negatively associated among disadvantaged groups (ethnic minorities and sexual and gender minorities). Specification-curve analysis revealed important variation in the size-and at times, direction-of correlations, depending on how contact and support for social change were measured. This allowed us to identify one type of support for change-willingness to work in solidarity- that is positively associated with intergroup contact among both advantaged and disadvantaged group members.

Inflexible social inference in individuals with subclinical persecutory delusional tendencies.

It has been suspected that abnormalities in social inference (e.g., learning others' intentions) play a key role in the formation of persecutory delusions (PD). In this study, we examined the association between subclinical PD and social inference, testing the prediction that proneness to PD is related to altered social inference and beliefs about others' intentions. We included 151 participants scoring on opposite ends of Freeman's Paranoia Checklist (PCL). The participants performed a probabilistic advice-taking task with a dynamically changing social context (volatility) under one of two experimental frames. These frames differentially emphasised possible reasons behind unhelpful advice: (i) the adviser's possible intentions (dispositional frame) or (ii) the rules of the game (situational frame). Our design was thus 2 × 2 factorial (high vs. low delusional tendencies, dispositional vs. situational frame). We found significant group-by-frame interactions, indicating that in the situational frame high PCL scorers took advice less into account than low scorers. Additionally, high PCL scorers believed more frequently that incorrect advice was delivered intentionally and that such misleading behaviour was directed towards them personally. Overall, our results suggest that social inference in individuals with subclinical PD tendencies is shaped by negative prior beliefs about the intentions of others and is thus less sensitive to the attributional framing of adviser-related information. These findings may help future attempts of identifying individuals at risk for developing psychosis and understanding persecutory delusions in psychosis.

Expectations and Decisions in the Volunteer's Dilemma: Effects of Social Distance and Social Projection.

In a Volunteer's Dilemma (VoD) one individual needs to bear a cost so that a public good can be provided. Expectations regarding what others will do play a critical role because they would ideally be negatively correlated with own decisions; yet, a social-projection heuristic generates positive correlations. In a series of 2-person-dilemma studies with over 1,000 participants, we find that expectations are indeed correlated with own choice, and that people tend to volunteer more than game-theoretic benchmarks and their own expectations would allow. We also find strong evidence for a social-distance heuristic, according to which a person's own probability to volunteer and the expectation that others will volunteer decrease as others become socially more remote. Experimentally induced expectations make opposite behavior more likely, but respondents underweight these expectations. As a result, there is a small but systematic effect of over-volunteering among psychologically close individuals.

Experimental Methods for Investigation of Shape Memory Based Elastocaloric Cooling Processes and Model Validation.

Shape Memory Alloys (SMA) using elastocaloric cooling processes have the potential to be an environmentally friendly alternative to the conventional vapor compression based cooling process. Nickel-Titanium (Ni-Ti) based alloy systems, especially, show large elastocaloric effects. Furthermore, exhibit large latent heats which is a necessary material property for the development of an efficient solid-state based cooling process. A scientific test rig has been designed to investigate these processes and the elastocaloric effects in SMAs. The realized test rig enables independent control of an SMA's mechanical loading and unloading cycles, as well as conductive heat transfer between SMA cooling elements and a heat source/sink. The test rig is equipped with a comprehensive monitoring system capable of synchronized measurements of mechanical and thermal parameters. In addition to determining the process-dependent mechanical work, the system also enables measurement of thermal caloric aspects of the elastocaloric cooling effect through use of a high-performance infrared camera. This combination is of particular interest, because it allows illustrations of localization and rate effects - both important for efficient heat transfer from the medium to be cooled. The work presented describes an experimental method to identify elastocaloric material properties in different materials and sample geometries. Furthermore, the test rig is used to investigate different cooling process variations. The introduced analysis methods enable a differentiated consideration of material, process and related boundary condition influences on the process efficiency. The comparison of the experimental data with the simulation results (of a thermomechanically coupled finite element model) allows for better understanding of the underlying physics of the elastocaloric effect. In addition, the experimental results, as well as the findings based on the simulation results, are used to improve the material properties.

Disaggregating Within- and Between-Person Effects of Social Identification on Subjective and Endocrinological Stress Reactions in a Real-Life Stress Situation.

Several experimental and cross-sectional studies have established the stress-buffering effect of social identification, yet few longitudinal studies have been conducted within this area of research. This study is the first to make use of a multilevel approach to disaggregate between- and within-person effects of social identification on subjective and endocrinological stress reactions. Specifically, we conducted a study with 85 prospective students during their 1-day aptitude test for a university sports program. Ad hoc groups were formed, in which students completed several tests in various disciplines together. At four points in time, salivary cortisol, subjective strain, and identification with their group were measured. Results of multilevel analyses show a significant within-person effect of social identification: The more students identified with their group, the less stress they experienced and the lower their cortisol response was. Between-person effects were not significant. Advantages of using multilevel approaches within this field of research are discussed.

Focusing on the bright tomorrow? A longitudinal study of organizational identification and projected continuity in a corporate merger.

Past research provides evidence that organizational identification is a key factor predicting employees' behaviours during mergers and acquisitions. In particular, recent studies demonstrate that members of the subordinate merger partner, in contrast to the dominant group, often find it difficult to transfer their identification to the post-merger organization. To understand this difference between dominant and subordinate groups, we examined employees' sense of projected continuity in the future. We argue that projected continuity mediates the differential relationships between pre-merger and post-merger identification and propose that pre-merger identification relates positively to projected continuity in the dominant group but negatively in the subordinate group. As a result, the overall relationship between pre- and post-merger identification should be reduced or eliminated in the subordinate compared with the dominant group. We tested our hypotheses in a survey (N = 492) distributed in a merger of two international pharmaceutical companies at the beginning of the post-merger integration and 15 months later. Results were consistent with our assumptions of a moderated mediation effect. We conclude that a key challenge in merger integration is to support high identifiers in the subordinate group in developing a projected continuity or a focus on 'the bright tomorrow'.

More is not less: greater information quantity does not diminish liking.

How does the acquisition of information about a person affect the liking of that person? A recent set of studies suggests that liking decreases as people acquire more information (Norton, Frost, & Ariely, 2007). We test this "less-is-more" hypothesis along with an alternative hypothesis based on information integration theory. According to this alternative, people average available person information in an unbiased manner so that the liking of a person described by a random sample of any number of traits from a trait universe approximates the degree of liking that would be obtained if all trait information were known. The correlation between liking and the number of traits should be zero. We present the results of computer simulation and 2 empirical person-judgment studies. Using Bayesian analyses, we find that the evidence is more consistent with the information-integration hypothesis than with the "less-is-more" hypothesis.

Social perception as induction and inference: an integrative model of intergroup differentiation, ingroup favoritism, and differential accuracy.

Three general properties of social stereotypes are the perception of differences between ingroups and outgroups (intergroup differentiation), the perception of ingroups as having more desirable attributes than outgroups (ingroup favoritism), and the greater accuracy of ingroup perceptions (differential accuracy). We present and test an inductive-reasoning model that accounts for all 3 phenomena, and we explicate the relations among them. Based on empirical evidence, the model assumes that most people have a positive self-image, that they project these self-images more strongly to ingroups than to outgroups, and that their self-images are valid cues for judgments about social groups. Two minimal-group experiments using a crossed-categorization paradigm support the model and provide new evidence for underlying psychological processes.

Same or different? Clarifying the relationship of need for cognition to personality and intelligence.

Need for cognition (NFC) refers to an individual's tendency to engage in and enjoy effortful cognitive processing. So far, little attention has been paid to a systematic evaluation of the distinctiveness of NFC from traits with similar conceptualization and from intelligence. The present research contributes to filling this gap by examining the relation of NFC to well-established personality concepts (Study 1) and to a comprehensive measure of intelligence in a sample with broad educational backgrounds (Study 2). We observed NFC to be positively correlated with openness, emotional stability, and traits indicating goal orientation. Using confirmatory factor analysis and event-related potentials, incremental validity of NFC and openness to ideas was demonstrated, showing that NFC is more predictive of drive-related and goal-oriented behavior and attentional resource allocation. Regarding intelligence, NFC was more associated with fluid than with crystallized aspects of intelligence. Altogether, the results provide strong support for the conceptual autonomy of NFC.

Promoting reconciliation through the satisfaction of the emotional needs of victimized and perpetrating group members: the needs-based model of reconciliation.

Guided by the Needs-Based Model of Reconciliation, we hypothesized that being a member of a victimized group would be associated with a threat to the status and power of one's ingroup, whereas being a member of a perpetrating group would threaten the image of the ingroup as moral and socially acceptable. A social exchange interaction through which victims feel empowered by their perpetrators and perpetrators feel accepted by their victims was thus predicted to enhance the parties' willingness to reconcile. Supporting the predictions across two experiments, members of the perpetrator group (Jews in Study 1 and Germans in Study 2) showed greater willingness to reconcile when they received a message of acceptance, rather than empowerment, from a member of the victimized group. Members of the victimized group (Arabs in Study 1 and Jews in Study 2) demonstrated the opposite effect. Applied and theoretical implications of these results are discussed.