PURPOSE To describe the tests that have been performed in order to commission the Brachytherapy module, version 3.2, service pack 3.0, of the Oncentra MasterPlan treatment plan system (OB), from Nucletron. The results were benchmarked against those obtained with the Plato system, v 14.3.7, also from Nucletron, used in the clinical routine. MATERIAL AND METHODS Commissioning was performed taki...

There is widespread conviction among health care professionals that coping affects emotion. Yet theory and research have traditionally emphasized the effects of emotion on coping. The present research addresses this imbalance by evaluating the extent to which coping mediated emotions during stressful encounters in two Caucasian, community-residing samples. Subjects' recently experienced stressf...

We have shown previously that diabetes causes increases in retinal arginase activity that are associated with impairment of endothelial cell (EC)-dependent vasodilation and increased formation of the peroxynitrite biomarker nitrotyrosine. Arginase blockade normalizes vasodilation responses and reduces nitrotyrosine formation, suggesting that overactive arginase contributes to diabetic retinopat...

activities and by electron microscopy. The higher-density fractions (1.2-1.5~-sucrose) contained actomyosin fibrils, mitochondria and sacroplasmic reticulum, and were enriched in cytochrome oxidase and Caz+-dependent adenosine triphosphatase. The endoplasmic-reticulum marker, NADPH-cytochtome c reductase, was found throughout the gradient. Lower-density fractions (0.75-1 .OM sucrose) were enric...

BACKGROUND Prior research has validated the construct of a suicide crisis syndrome (SCS), a specific psychological state that precedes and may precipitate suicidal behavior. The feeling of entrapment is a central concept of the SCS as well as of several other recent models of suicide. However, its exact relationship with suicidality is not fully understood. In efforts to clarify the exact role ...

Interaction in free solution of highly purified preparations of human C'1 esterase, C'4, C'2, and C'3, in the presence of Mg(2+), resulted in rapid generation of an activity indistinguishable by biological criteria from anaphylatoxin. The formation of anaphylatoxin was associated with immunoelectrophoretic conversion of C'3 to anodically faster migrating proteins and was unaffected by the prese...

The integration of knowledge concerning the regulation of MT, a highly conserved, low molecular weight, cystein-rich metalloprotein, on its proposed functions is necessary to clarify how MT affects cellular processes. MT expression is induced/enhanced in various tissues by a number of physiological mediators. The cellular accumulation of MT depends on the availability of cellular zinc derived f...