Recovery, well-being, and performance-related outcomes: The role of workload and vacation experiences.

On the basis of theoretical assumptions regarding resource gain and loss (S. E. Hobfoll, 1998), the authors used a longitudinal study to examine effects of vacation on well-being and performance-related outcomes. University employees (N = 221) completed measures of well-being (health complaints and burnout) and performance-related outcomes (self-reported task performance and effort expenditure) 1 week before and 2 days and 2 weeks after vacation and measures of workload 2 days after vacation. Specific vacation experiences (positive and negative work reflection, relaxation, mastery experience, and nonwork hassles) were assessed during vacation. Results showed changes in well-being and self-reported effort expenditure from before to after vacation, revealing vacation effects and partial fade-out effects. In addition, vacation experiences and workload significantly predicted some of the outcomes. The authors discuss applicability of the theoretical approach in the context of vacation and fade-out effects, implications for future research on recovery processes, and practical implications. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Plasma Etching of Nano-Structured Precursor-Derived Ceramic Composites

This paper reports on the analysis of the microstructure of precursor-derived ceramics by plasma etching and field emission scanning electron microscopy. By applying this technique, the nano-crystals in Si–C–N-based ceramics and composites can be clearly observed without difficulty.     

Pubic osteotomy in obturator gliding hernia

Hernias of the obturator foramen are rare. They are described mostly in elderly female patients in poor health. Often the correct diagnosis is stumbled upon as a result of surprising intraoperative findings. Surgical therapy is indicated often by the clinical symptoms of an incarcerated hernia. Herniation of the entire urinary bladder with hemorrhagic infarction has never been described before. For an anatomical reduction of the hernia it was necessary to resect the superior pubic ramus. For plastic reconstruction a marlex mesh was used.     

Electrolysis of a binary electrolyte in two-dimensional channel flow

Numerical simulations have been performed to analyze the electric current density in an aqueous solution of CuSO₄, flowing in a two-dimensional channel with finite electrodes placed symmetrically on opposite sides. A Butler-Volmer law is chosen as a boundary condition on the electrodes for current densities below the limiting current. At limiting current density, two modified boundary conditions at the cathode are derived. For 0 Pe 25 000, comparisons are made with results of other studies, and the agreement is excellent for large values of Pe but differ for Pe ˜ 1. For small values of the applied voltage and large values of Pe, a semi-analytic solution of the electric potential is derived.     

The women of ENIAC

A group of young women college graduates involved with the ENIAC (Electronic Numerical Integrator And Computer) are identified. As a result of their education, intelligence, as well as their being at the right place and at the right time, these young women were able to perform important computer work. Many learned to use effectively “the machine that changed the world” to assist in solving some of the important scientific problems of the time. Ten of them report on their background and experiences. It is now appropriate that these women be given recognition for what they did as “pioneers” of the age of computing     

Distinctions of unmitigated communion from communion: self-neglect and overinvolvement with others

The authors sought to distinguish unmitigated communion, a focus on others to the exclusion of the self, from communion, a positive caring orientation toward others. Across four studies, the authors showed that unmitigated communion and communion are correlated, but that unmitigated communion is distinct from communion in terms of a negative view of the self, turning to others for self-evaluative information, and psychological distress. They also sought to explain the relation of unmitigated communion to distress. It was found that unmitigated communion individuals' reliance on others for self-esteem leads to overinvolvement with others and a neglect of the self, which, in turn, account for the relation of unmitigated communion to distress.     

Inertial impaction of aerosol particles on single and multiple spherical targets

Inertial deposition of aerosol droplets (diameter: 1–14 μm) on steel spheres (diameter: 3–9 mm) was investigated. Air velocity was varied between 7 and 28 m/s (corresponding sphere Reynolds numbers: 1400–17000). The impaction on single spheres as well as that on linear arrays of eight spheres was measured. Theoretical results, based on potential flow investigations were verified by single sphere experiments. Of special interest was the range of lower Stokes numbers, where the theoretically predicted limit of deposition cannot be verified. The experiments on sphere arrays were for the first time performed in the low Stokes number range. Deposition on the leading sphere, relative to that on the shielded spheres, exhibits a maximum in the high Stokes number range, but this changes drastically in the low Stokes number range. Here, maximum deposition can be found on the shielded spheres while the leading sphere shows a markedly lower deposition.