A fifth instance of Crohn's disease in identical twins is reported. The evidence for genetic expression of the disease is considered and the possible mechanisms involved are reviewed.

I propose a non-Humean theory of causation with “tendencies” as causal connections. Not, however, as “necessary connexions”: causes are not sufficient, they do not necessitate their effects. The theory is designed to be, not an analysis of the concept of causation, but a description of what is the case in typical cases of causation. I therefore call it a metaphysical theory of causation, as opp...

this study aims to offer a sociological explanation of influential factors on the rate of tendency toward divorce in kermanshah city. a combination of homogamy theory, exchange theory, and network theory is used as the theoretical framework of the study. the study has been conducted via survey method and data is collected through questionnaire and interview. the statistical sample of study cons...

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Balancing multiple roles is a challenge for individuals in many sectors of the population. The purpose of this study was to test the hypothesis that individuals have dispositional tendencies to experience interrole conflict and facilitation. We also aimed to show that coping styles and life satisfaction are correlates of dispositional conflict and facilitation tendencies. Two survey studies wer...

Little is known about how emotion recognition and empathy jointly operate in youth growing up in contexts defined by persistent adversity. We investigated whether adversity exposure in two groups of youth was associated with reduced empathy and whether deficits in emotion recognition mediated this association. Foster, rural poor, and comparison youth from Swaziland, Africa identified emotional ...