Divorce in the barn owl: securing a compatible or better mate entails the cost of re-pairing with a less ornamented female mate.

Two nonmutually exclusive hypotheses can explain why divorce is an adaptive strategy to improve reproductive success. Under the 'better option hypothesis', only one of the two partners initiates divorce to secure a higher-quality partner and increases reproductive success after divorce. Under the 'incompatibility hypothesis', partners are incompatible and hence they may both increase reproductive success after divorce. In a long-term study of the barn owl (Tyto alba), we address the question of whether one or the two partners derive fitness benefits by divorcing. Our results support the hypothesis that divorce is adaptive: after a poor reproductive season, at least one of the two divorcees increase breeding success up to the level of faithful pairs. By breeding more often together, faithful pairs improve coordination and thereby gain in their efficiency to produce successful fledglings. Males would divorce to obtain a compatible mate rather than a mate of higher quality: a heritable melanin-based signal of female quality did not predict divorce (indicating that female absolute quality may not be the cause of divorce), but the new mate of divorced males was less melanic than their previous mate. This suggests that, at least for males, a cost of divorce may be to secure a lower-quality but compatible mate. The better option hypothesis could not be formally rejected, as only one of the two divorcing partners commonly succeeded in obtaining a higher reproductive success after divorce. In conclusion, incompatible partners divorce to restore reproductive success, and by breeding more often together, faithful partners improve coordination.

Bonding and Bridging Social Capital in Step- and First-Time Families and the Issue of Family Boundaries

Divorce and remarriage usually imply a redefinition of family boundaries, with consequences for the production and availability of social capital. This research shows that bonding and bridging social capitals are differentially made available by families. It first hypothesizes that bridging social capital is more likely to be developed in stepfamilies, and bonding social capital in first-time families. Second, the boundaries of family configurations are expected to vary within stepfamilies and within first-time families creating a diversity of family configurations within both structures. Third, in both cases, social capital is expected to depend on the ways in which their family boundaries are set up by individuals by including or excluding ex-partners, new partner's children, siblings, and other family ties. The study is based on a sample of 300 female respondents who have at least one child of their own between 5 and 13 years, 150 from a stepfamily structure and 150 from a first-time family structure. Social capital is empirically operationalized as perceived emotional support in family networks. The results show that individuals in first-time families more often develop bonding social capital and individuals in stepfamilies bridging social capital. In both cases, however, individuals in family configurations based on close blood and conjugal ties more frequently develop bonding social capital, whereas individuals in family configurations based on in-law, stepfamily or friendship ties are more likely to develop bridging social capital.

Forecasting nano law: defining nano

Law and science have partnered together in the recent past to solve major public health issues, ranging from asbestos to averting the threat of a nuclear holocaust. This paper travels to a legal and health policy frontier where no one has gone before, examining the role of precautionary principles under international law as a matter of codified international jurisprudence by examining draft terminology from prominent sources including the Royal Commission on Environmental Pollution (UK), the Swiss Confederation, the USA (NIOSH) and the OECD. The research questions addressed are how can the benefits of nanotechnology be realized, while minimizing the risk of harm? What law, if any, applies to protect consumers (who comprise the general public, nanotechnology workers and their corporate social partners) and other stakeholders within civil society from liability? What law, if any, applies to prevent harm?

Can Science of Religion Render Service to Islamic Studies?

(Résumé de l'ouvrage) Der international renommierte Religionswissenschaftler Michael Pye, seit 1982 Professor für Religionswissenschaft an der Philipps-Universität Marburg, hat die moderne, konfessionell unabhängige Religionsforschung maßgeblich mitgeprägt und dazu beigetragen, das Profil der Religionswissenschaft als einer autonomen akademischen Disziplin zu schärfen. In der vorliegenden Festschrift, die aus Anlaß des 65. Geburtstages Michael Pyes von zweien seiner Schüler bzw. Schülerinnen und einer ehemaligen Mitarbeiterin herausgegeben wurde, würdigen über 30 Religionswissenschaftler und Religionswissenschaftlerinnen aus Finnland, Großbritannien, Dänemark, Deutschland, Italien, Japan, Kanada, den Niederlanden, Norwegen, Schweden, der Schweiz, Tschechien und den USA mit ihren Beiträgen die Person und das Werk des Jubilars. Darüber hinaus enthält die Festschrift Porträts und eine Bibliographie der Arbeiten Michael Pyes. Die große thematische und methodische Bandbreite, die das Oevre dieses maßgebenden Religionswissenschaftlers kennzeichnet, spiegelt sich in der Vielfalt der Beiträge wider. So gibt dieses Buch zugleich einen guten Überblick über die Themen und Methoden der gegenwärtigen Religionswissenschaft.