The confounded nature of angry men and happy women.

Findings of 7 studies suggested that decisions about the sex of a face and the emotional expressions of anger or happiness are not independent: Participants were faster and more accurate at detecting angry expressions on male faces and at detecting happy expressions on female faces. These findings were robust across different stimulus sets and judgment tasks and indicated bottom-up perceptual processes rather than just top-down conceptually driven ones. Results from additional studies in which neutrally expressive faces were used suggested that the connections between masculine features and angry expressions and between feminine features and happy expressions might be a property of the sexual dimorphism of the face itself and not merely a result of gender stereotypes biasing the perception. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Functional Projection: How Fundamental Social Motives Can Bias Interpersonal Perception.

Results from 2 experimental studies suggest that self-protection and mate-search goals lead to the perception of functionally relevant emotional expressions in goal-relevant social targets. Activating a self-protection goal led participants to perceive greater anger in Black male faces (Study 1) and Arab faces (Study 2), both out-groups heuristically associated with physical threat. In Study 2, participants' level of implicit Arab-threat associations moderated this bias. Activating a mate-search goal led male, but not female, participants to perceive more sexual arousal in attractive opposite-sex targets (Study 1). Activating these goals did not influence perceptions of goal-irrelevant targets. Additionally, participants with chronic self-protective and mate-search goals exhibited similar biases. Findings are consistent with a functionalist, motivation-based account of interpersonal perception. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Managing the threats and opportunities afforded by human sociality.

Group living offers humans substantial fitness-enhancing benefits, although it also affords significant fitness-decreasing costs. To enhance these benefits and reduce these costs, individuals use emotional, cognitive, and behavioral mechanisms designed to help them effectively manage the complexities of life in highly interdependent groups. The authors briefly outline their evolutionary, functional analysis of human sociality and summarize accumulating empirical support for various implications derived from this conceptual analysis. In particular, the authors focus on four questions central to intragroup and intergroup relations: (a) How do people manage the need to be selective in their choice of social affiliates? (b) how do people manage the impressions others form of them? (c) how do people manage the threats that fellow group members often pose? and (d) how do members of groups manage their own groups' welfare vis à vis other groups? In all, the authors present the outline of a broad theoretical framework built on a functional analysis of the universal nature of groups' social structures and processes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

When do the stigmatized stigmatize? The ironic effects of being accountable to (perceived) majority group prejudice-expression norms.

How do frequently stigmatized individuals feel about and respond to members of other potentially stigmatizable groups? Four studies demonstrated that perceptions of majority group norms regarding prejudice expression can shape how minority individuals respond to minority individuals from other groups. Study 1 revealed that Black and White men and women have somewhat different perceptions of Whites' norms regarding prejudice expression. Study 2 manipulated whether evaluations of Native American job candidates were to remain private or to be made public to unfamiliar Whites upon whom the evaluators were dependent: Black men used a strategy of publicly (but not privately) denigrating the minority target to conform to presumed prejudice-expression norms. Study 3, in which the authors explicitly manipulated prejudice-expression norms, and Study 4, in which they manipulated audience race, further supported the role of such norms in eliciting public discrimination against minority group members by other minority group members. The desire to avoid being targeted for discrimination, in conjunction with the perception that the majority endorses discrimination, appears to increase the likelihood that the often-stigmatized will stigmatize others. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of oxygen addition on the water–gas shift reaction over Pt/CeO2 catalysts in microchannels – Results from catalyst testing and reactor performance in the kW scale

Wash-coated Pt/CeO₂, Pt/CeO₂/ZrO₂ and Pt/Cu/CeO₂ and Pt/CeO₂/Al₂O₃ based formulations were tested in sandwich type microreactors for water–gas shift (WGS) activity. At low reaction temperature of 260 °C, low conversion of carbon monoxide was initially observed which increased considerably upon the addition of air, a behaviour which was observed even after multiple cycles of start-up, operation with and without air and shut-down. At a higher reaction temperature of 400 °C air addition did not further improve the performance of the catalysts, which converted the carbon monoxide already close to equilibrium. One of the catalysts was incorporated into a larger reactor of kW scale and tested for its performance under conditions of WGS and oxygen enhanced WGS. The carbon monoxide conversion was increased by the air addition also on the larger reactor.     

Ein neues Verfahren zur Berechnung des räumlichen passiven Erddrucks vor Trägern

A calculation method for the spatial passive earth pressure acting on girders. This paper presents a calculation method for vertical girders in cohesionsless soils. Measurements on buildings and model experiments are the basis. The Distinct Element Method (DEM) was extended and improved to enable the numerical simulation of load tests. Based on this knowledge, conditions not covered by experiments was simulated by means of the DEM. Accordingly, the test matrix could be extended. With the results of these simulations a new calculation method was derived.     

Myelodysplastic syndrome as a late complication following autologous bone marrow transplantation for non-Hodgkin's lymphoma

PURPOSE: To determine the incidence, natural history, and risk factors associated with myelodysplastic syndrome (MDS) occurring as a late complication following autologous bone marrow transplantation for patients with non-Hodgkin's lymphoma. METHODS: We retrospectively reviewed the charts of all 262 patients who underwent autologous bone marrow transplantation for non-Hodgkin's lymphoma at the Dana-Farber Cancer Institute from 1982 through 1991. Although patients received a variety of treatments before they were eligible for transplant, identical myeloablative therapy (cyclophosphamide 60 mg/kg/d for 2 days plus total-body irradiation twice daily for 3 days) was administered in each case. By collecting data on pretransplant and early posttransplant variables, we attempted to identify risk factors for the development of MDS. RESULTS: The crude overall incidence of posttransplant MDS or acute myeloid leukemia (AML) was 7.6%. The actuarial risk at 6 years was 18% +/- 9%. The median time of onset was 31 months (range, 10 to 101) after transplant or 69 months (range, 27 to 141) after initial treatment for lymphoma. Pretreatment variables predictive for the development of MDS (univariate analysis) included prolonged interval between initial treatment and the transplant procedure (P = .003), increased duration of exposure to chemotherapy (P = .019) or to alkylating agents (P = .045), and use of radiation therapy (P = .032) or pelvic radiation (P = .003) before transplant. CONCLUSION: MDS is a potential complication of autologous bone marrow transplantation for non-Hodgkin's lymphoma; bone marrow stem-cell damage sustained before the transplant may be the most important risk factor.     

Sexually Selective Cognition: Beauty Captures the Mind of the Beholder.

Across 5 experimental studies, the authors explore selective processing biases for physically attractive others. The findings suggest that (a) both male and female observers selectively attend to physically attractive female targets, (b) limiting the attentional capacity of either gender results in biased frequency estimates of attractive females, (c) although females selectively attend to attractive males, limiting females' attentional capacity does not lead to biased estimates of attractive males, (d) observers of both genders exhibit enhanced recognition memory for attractive females but attenuated recognition for attractive males. Results suggest that different mating-related motives may guide the selective processing of attractive men and women. (PsycINFO Database Record (c) 2010 APA, all rights reserved)