نتایج جستجو برای: zinc recovery
تعداد نتایج: 272972 فیلتر نتایج به سال:
BACKGROUND Zinc deficiency is prevalent in children in developing countries. Supplemental zinc provides therapeutic benefits in diarrhea. OBJECTIVE We sought to measure the effect of supplemental zinc given with oral rehydration therapy during recovery from acute or persistent diarrhea. DESIGN We conducted pooled analyses including all available published and unpublished randomized controll...
We have developed a general approach to generate selective small-molecule switches for zinc finger transcription factors based on the notion of structural complementation. A small molecule, 2-(4'-quinoline)benzimidazole (7), was identified by screening of a heterocycle library, which functionally rescues a structurally compromised transcription factor C7-F116A/H125G-VP16. Compound 7 induces the...
A case control study of 108 patients less than 5year olds who were admitted to the pediatric department in Tikrit teaching hospital presented with acute diarrhea to evaluate the role of supplements of zinc in the treatment of acute diarrhea. The total number of cases included in study 108 patients, males were 72 cases (66.6%),while females were 36cases (33.3%). Patients were divided into two gr...
Physical methods such as crushing and sieving followed by magnetic separation steps were applied to separate non-magnetic material (88.4 wt%) from zinc-carbon spent batteries. The oversize material was processed by eddy current separation to recover zinc sheet, carbon rods, and plastics. The undersize fraction (-2.36 mm) with a metal composition of 15.5% Zn, 17.5% Mn, and 1.4% Fe was used for t...
Osseointegration of bone implants is a vital part of the recovery process. Numerous studies have shown that micropatterned geometries can promote cell-substrate associations and strengthen the bond between tissue and the implanted material. As demonstrated previously, exogenous zinc levels can influence the responsiveness of pre-osteoblasts to micropatterns and modify their migratory behavior. ...
A procedure for separation and preconcentration of trace amounts of Zn(II) from aqueous media is proposed. The procedure is based on the adsorption of Zn2+ on octadecyl bonded silica membrane disk modified with N,N’-disalicylidene-1,2-phenylendiamine at pH 7. The retained zinc ions were then stripped from the disk with a minimal amount of 1.5 mol L-1 hydrochloric acid solution as eluent, and de...
The serum zinc concentration was examined in 61 patients with acute myocardial infarction who were admitted within twenty-four hours after the onset. Forty-two of 61 patients were admitted within twelve hours. The zinc level fell sharply as early as within three hours after the onset. The minimum values were attained two or three days after infarction and then rose to normal values within five ...
background: industrial copper ingest is a common form of poisoning in animals. zinc has an important role in the physiology of spermatozoa, in sperm production and viability. objective: this study was set to investigate whether the adverse effects of long term copper consumption on quality of rat spermatozoa could be prevented by zinc therapy. materials and methods: forty eight mature (6-8 week...
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