نتایج جستجو برای: ultraviolet lamp
تعداد نتایج: 50004 فیلتر نتایج به سال:
Westinghouse lamp (wavelength spectrum 180-210 nm) on 2 consecutive days and the others acted as controls. Plasma 25-(OH)D was measured by a competitive protein-binding assay. The mean (+SEM) total bilirubin in the Wistar rats was less than 8 pmolll, in the Gunn rats 124 t 1 I pmol/l and in the CBD-ligated rats 160 f 16 pmol/l. The mean pretreatment plasma 25-(OH)D concentrations were 5 . 5 i 2...
Monolayers of alkyl chains, attached through direct Si-C bonds to Si(111), via phosphonates to GaAs(100) surfaces, or deposited as alkyl-silane monolayers on SiO2, are investigated by ultraviolet and inverse photoemission spectroscopy and X-ray absorption spectroscopy. Exposure to ultraviolet radiation from a He discharge lamp, or to a beam of energetic electrons, leads to significant damage, p...
Lysosome-associated membrane proteins 1 and 2 (LAMP-1 and LAMP-2) are delivered to phagosomes during the maturation process. We used cells from LAMP-deficient mice to analyze the role of these proteins in phagosome maturation. Macrophages from LAMP-1- or LAMP-2-deficient mice displayed normal fusion of lysosomes with phagosomes. Because ablation of both the lamp-1 and lamp-2 genes yields an emb...
Lysosomal membrane glycoprotein (lamp)-1 and lamp-2 are the most abundant glycoproteins within the lysosomal membrane. A small amount of lamp-1 and lamp-2 molecules, however, can be present on the cell surface. We have shown previously that highly metastatic colonic carcinoma L4 cells express more lamp-1 and lamp-2 on the cell surface than low metastatic SP cells (Saitoh, O., Wang, W.-L., Lotan...
Vitiligo is a common, acquired pigmentary disorder of unknown pathogenesis that presents a therapeutic challenge to many dermatologists (Figure 1). Although surgery in the form of grafting or transplantation is generally the most definitive treatment option, these procedures are limited by concerns of post-procedure cosmesis. Photochemotherapy using psoralen and ultraviolet A (PUVA) therapy, to...
Photolysis of caged compounds allows the production of rapid and localized increases in the concentration of various physiologically active compounds. Caged compounds are molecules made physiologically inactive by a chemical cage that can be broken by a flash of ultraviolet light. Here, we show how to obtain patch-clamp recordings combined with photolysis of caged compounds for the study of olf...
Sic films have been prepared by photochemical vapour deposition using a D lamp from a gas mixture of CH3SiC13+H +Ar on a grapaite plate. The deposition temperature o$ the Sic films of a single phase was lowered by irradiation with a D2 lamp by 50°C as compared to that without irradiation. Furthermore, the deposition rate was increased with irradiation by 1.2-2.8 times as compared to that withou...
Bovine viral diarrhea virus (BVDV) is a pathogen that infects cattle, and is globally important. It causes substantial financial losses to the livestock industry. In the current study, a one-step reverse transcriptase-loop-mediated isothermal amplification (RT-LAMP) assay was set up for rapid and efficient detection of BVDV. For this purpose, four primers were designed to recognize six distinct...
Background Circular dichroism (CD) spectroscopy has been employed for more than 50 years for the study of the structure and dynamics of proteins. It is now a workhorse of structural biology, finding applications in the determination of protein secondary structures, monitoring and deciphering protein folding, examining macromolecular interactions, and defining and quantitating protein-ligand bin...
Marking organisms with fluorescent dyes and powders is a common technique used in ecological field studies that monitor movement of organisms to examine life history traits, behaviors, and population dynamics. External fluorescent marking is relatively inexpensive and can be readily employed to quickly mark large numbers of individuals; however, the ability to detect marked organisms in the fie...
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