Inbreeding in wild populations can have devastating effects on fitness, but the genetic causes should not be transmitted across generations. A new study of song sparrows has revealed a parent-offspring resemblance for inbreeding, resulting from population structuring, with important implications for understanding the genetic causes of phenotypic variation in wild populations.

Previous research on gender differences in behavior has led to seemingly contradictory findings. While some authors report that women are more generous than men, others report the opposite relative patterns of behavior. From data generated by 202 subject pairs, we find that women are more sensitive than men to the costs of generous actions when deciding whether or not to be generous. The factor...

People are highly vigilant for and alarmed by social exclusion. Previous research has focused largely on the emotional and motivational consequences of being unambiguously excluded by others. The present research instead examines how people make sense of a more ambiguous dynamic, 1-person exclusion--situations in which one person (the excluder) excludes someone (the rejected) while including so...

Two experiments examined responses to bystanders who claimed that another person experienced discrimination. Participants read about a woman or man who experienced sexism and whose coworker (male or female) either expressed sympathy or claimed that the target experienced sexism. Participants then evaluated the co-worker (bystander). Overall, participants evaluated bystanders who claimed that so...

To reduce the damages of aeolian vibration of conductors to the power transmission networks, the most common method is installation of Stock-bridge dampers. Estimation of the damper’s dissipated energy is an important factor in determining the number and location of installation of these types of vibration absorbers. This estimation is strongly dependent upon the assumed mode shape of the condu...

When Race/Ethnicity Matters More Than Size Print ISSN: 0039-2499. Online ISSN: 1524-4628 Copyright © 2007 American Heart Association, Inc. All rights reserved. is published by the American Heart Association, 7272 Greenville Avenue, Dallas, TX 75231 Stroke doi: 10.1161/STROKEAHA.107.488817 2007;38:2405-2406; originally published online August 2, 2007; Stroke. http://stroke.ahajournals.org/conten...