نتایج جستجو برای: pak cartridge
تعداد نتایج: 5191 فیلتر نتایج به سال:
With this dual-cartridge system we extract 25-hydroxyvitamin D [25(OH)D] and 1,25-dihydroxyvitamin D [1,25(OH)2D] from a single serum sample by using a nonpolar octadecylsilanol silica cartridge to adsorb the vitamin D metabolites and other nonpolar substances; the polar substances wash through the cartridge. The eluted material is then applied to a second alkylamine cartridge, which adsorbs th...
OBJECTIVE To determine the cause of postoperative leaks in 2 patients with Zenker diverticula treated with endoscopic staple-assisted esophagodiverticulostomy. DESIGN Medical chart review and simulated surgery. SETTING Teaching hospital. PATIENTS AND METHODS Two case reports of postoperative leaks in patients treated with endoscopic staple-assisted esophagodiverticulostomy and experimenta...
AIMS To evaluate the overall accuracy and reproducibility of the Alcon portable autokeratometer (PAK) measurements in infants and young children. METHODS The accuracy of the Alcon PAK in measuring toric reference surfaces (1, 3, 5, and 7 D) under various suboptimal measurement conditions was assessed, and the reproducibility of PAK measurements of corneal astigmatism in newborn infants (n = 5...
The products of proto-oncogene play critical roles in the development or maintenance of multicellular societies in animals via strict regulatory systems. When these regulatory systems are disrupted, proto-oncogenes can become oncogenes, and thereby induce cell transformation and carcinogenesis. To understand the molecular basis for development of the regulatory system of proto-oncogenes during ...
The family of p21-activated protein kinases (PAKs) appear to be present in all organisms that have Cdc42-like GTPases. In mammalian cells, PAKs have been implicated in the activation of mitogen-activated protein kinase cascades, but there are no reported effects of these kinases on the cytoskeleton. Recently we have shown that a Drosophila PAK is enriched in the leading edge of embryonic epithe...
The effect of temperature and humidity fluctuations on fecundity and fertility of the silkworm lines was investigated during autumn and spring by exposing 4 and 5 instar larvae of eleven inbred silkworm lines ( M101, M-103, M-104, M-107, Pak-1, Pak-2, Pak-3, Pak-4, PFI-1, PFI-2 and S-1) to 25±1°C, 30±1°C and 35±1°C in combination with 55, 65 and 75% relative humidity (RH) for 3hr daily. Tempera...
Background and Aim: Determining the degree of conformity of respirator cartridges with the accepted standards is very important for ensuring their respiratory protection efficiency. The aim of this study was to determine the degree of conformity of organic vapor-respirator cartridges used in different petrochemical companies with the EN 14387:2004 standard. Materials and Methods: In the first ...
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