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The effect of salinity on ammonium-assimilation enzymes, as well as on the enzymes of purine catabolism, was studied in root nodules of common bean plants grown in an environmentally controlled chamber. Salt treatments (0, 25, 50 and 100 mM) were applied during the vegetative period, when the symbiosis was well established. Four harvests were made, two during the vegetative and two during the r...
BACKGROUND Left ventricular (LV) pacing improves hemodynamics in patients with heart failure. We hypothesized that at least part of this benefit occurs by minimization of external constraint to LV filling from ventricular interaction. METHODS AND RESULTS We present median values (interquartile ranges) for 13 heart failure patients with LV pacing systems implanted for New York Heart Associatio...
'Current Address: Los Alamos National Laboratory, Los Alamos, NM 87545. t Current Address: PSI, LG I25, CH 5232 Villigen PSI, Switzerland. ~ Deceased. coefficients as high as 76%." "To stabilize the solution, Wolfenstein (spin-transfer) parameter data are required of similar quality to those at 800 MeV. " We present these new data here. With the inclusion of these data, Bugg reports stable solu...
BACKGROUND The rate of spontaneous regression in CIN III lesions is controversial. Whereas some studies have reported high regression rates of up to 38% after prolonged biopsy-conus intervals, others have shown rates between 0 and 4% without considering time intervals. Identification of young patients with potentially regressing CIN III could offer the chance to avoid conisation, thus lowering ...
Twenty-four-hour ambulatory blood pressure, including the acceleration phase, and left ventricular mass were evaluated in 16 patients with isolated systolic hypertension (standing blood pressure greater than or equal to 160 mm Hg systolic and less than or equal to 95 mm Hg diastolic). After a 4-week, single-blind, placebo period, each patient underwent 24-hour ambulatory blood pressure monitori...
Pool A is a rapidly exchangeable cellular pool of Ca whose release is triggered by a mechanism involving extracellular Ca (Hunter et al., 1981). We have now found that pool A is rapidly released from the perfused rat heart when 10 mM caffeine is added to the perfusate. Pool A release by caffeine was demonstrated during a Ca free perfusion. When the perfusate contained 2.5 mM Ca, caffeine induce...
gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...
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