If partners derive utility from joint leisure time, it is expected that they will coordinate their work schedules in order to increase the amount of joint leisure. In order to control for differences in constraints and selection effects, this paper uses a new matching procedure, providing answers to the following questions: (1) Do partners coordinate their work schedules and does this result in...

Well-aligned Cu-doped ZnO nanorods were successfully synthesized on polyethylene terephthalate (PET) substrate using chemical bath deposition method. The structural and optical properties of Cu-doped ZnO nanorods were investigated using X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and photoluminescence (PL) spectroscopy...

We suppose that the statistician observes some large number of estimates z(i), each with its own unobserved expectation parameter μ(i). The largest few of the z(i)'s are likely to substantially overestimate their corresponding μ(i)'s, this being an example of selection bias, or regression to the mean. Tweedie's formula, first reported by Robbins in 1956, offers a simple empirical Bayes approach...

Focusing on supplier selection, this article addresses two questions: (1) What are the antecedents that lead to the adoption of various types of selection strategies? (2) What impact do these strategies have on supplier performance? We build a research model showing how both the uncertainty-based and resource-based views drive market-focused and relationship-focused supply selection strategies....

Mit dieser Fall-Kontroll-Studie sollen Risikofaktoren für SIDS aus den Umständen von Schwangerschaft und Geburt identifiziert werden. Insbesondere sollte überprüft werden, ob das Rauchen in der Schwangerschaft und die Inanspruchnahme von Vorsorgeuntersuchungen Zusammenhänge zum SIDS-Risiko aufweisen. Die dieser Studie zugrunde liegenden Daten wurden zum Zeitpunkt der Geburt unter beobachtungsgl...

Weak gravitational lensing observations probe the spectrum and evolution of density fluctuations and the cosmological parameters that govern them, but they are currently limited to small fields and subject to selection biases. We show how the expected signal from large-scale structure arises from the contributions from and correlations between individual halos. We determine the convergence powe...