Lacunes are small deep infarcts which cavitate, producing “lacunes” (French for lake).1 “Lacunar infarcts” have been thought of as strokes caused by intrinsic disease of small vessels called lipohyalinosis, resulting from hypertension2 and diabetes.3 Contrary to this established dogma, the literature demonstrates that emboli are the cause of lacunes. Almost all of the histopathological evaluati...

Potentiometric sensors that exhibit a non-Hofmeister selectivity sequence are normally designed by selective chemical recognition elements in the membrane. In other situations, when used as detectors in separation science, for example, membranes that respond equally to most ions are preferred. With so-called liquid membranes, a low selectivity is difficult to accomplish since these membranes ar...

a difference in salt concentration in two solutions separated by a membrane leads to an electrical potential difference across the membrane, also without applied current. a literature study is presented on proposed theories for the origin of this membrane potential (ϕm). the most well-known theoretical description is teorell-meyer-sievers (tms) theory, which we analyze and extend. experimental ...

Malnutrition is a common problem in chronic dialysis patients. There are several methods for nutritional assessment of hemodialysis patients, such as calculation of urea generation rate. As urea is produced from proteins catabolism and there is a linear correlation between urea generation and protein catabolic rate (PCR), PCR can be calculated by considering urea nitrogen appearence during the ...

conclusions the current study indicates increased risk for hcv infection in patients under dialysis and its relation with the mean duration of hemodialysis, history of renal transplantation and surgical intervention. considering the immune deficiency in these patients, intense education to both patients and medical staff will be beneficial. patients and methods a retrospective analysis was perf...