نتایج جستجو برای: 254 to 587
تعداد نتایج: 10615981 فیلتر نتایج به سال:
BACKGROUND We attempted to determine the prevalence of Hepatozoon spp. infection in Mashhad, northeast of Iran, via blood smear parasitology. METHODS The prevalence was investigated by examination of blood smear parasitology, using blood samples collected from 254 dogs (51 strays and 203 privately owned-dogs). RESULTS Two stray dogs (2/51; 3.92%) and two privately-owned dogs (2/203; 0.98%) ...
Ultraviolet sources with output wavelengths or 254, 300, and 366 nm were compared for detection of ethidium bromide-DNA complexes in acrylamide gels. The 254and 300-nni sources were both much more sensitive than the 366-nni source. The 254-nni .source produced a great deal of photodamage, photonickingand photodimerization, and photobleaching, while the longer wavelength sources cause little dam...
Ultra-fast liquid chromatography with a photodiode array detector for simple and rapid determination of urea in body fluids of farm animals is described. Blood plasma, milk, and urine samples are treated with trichloroacetic acid and then centrifuged. Supernatants are derivatized at room temperature using p-dimethylaminobenzaldehyde. Samples are separated using a ternary gradient of methanol in...
BACKGROUND Excessive proliferation of pulmonary artery smooth muscle cells (PASMCs) plays an important role in the development of idiopathic pulmonary arterial hypertension (IPAH), whereas a rise in cytosolic Ca2+ concentration triggers PASMC contraction and stimulates PASMC proliferation. Recently, we demonstrated that upregulation of the TRPC6 channel contributes to proliferation of PASMCs is...
We previously developed a quantitative autoradiographic tech nique with special forceps for measuring unscheduled DNA synthesis (UDS) in mouse skin after treatment with ultraviolet light in vivo. By this method, we investigated the relationship between the protective role of melanin and UV-induced DNA repair in black-and-white guinea pigs. Flat areas containing a sharp border between pigmented ...
We previously developed a quantitative autoradiographic technique with special forceps for measuring unscheduled DNA synthesis (UDS) in mouse skin after treatment with ultraviolet light in vivo. By this method, we investigated the relationship between the protective role of melanin and UV-induced DNA repair in black-and-white guinea pigs. Flat areas containing a sharp border between pigmented a...
The glass transition temperatures of AgPO3 have been reported to lie in the 163 Tg 192 °C range. These results are typical when precursors are processed at laboratory ambient. In the present work, we show that if precursors are handled in a dry ambient environment, the Tg’s steadily increase in the 181 2 Tg 254 2 °C range as the relative humidity of the ambient environment decreases. The glass ...
The Brazilian inoculant strains 29W and 587 were found to be members of Bradyrhizobium elkanii primarily on the basis of 16S rRNA gene sequences identical to that of B. elkanii USDA76 and on the basis of reactivity with antibodies against serogroups 76 and 31, respectively. The agronomic consequences of using strains of B. elkanii as soybean inoculants are discussed.
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Background: Pseudomonas aeruginosa is a gram-negative bacillus that an opportunistic pathogen in patients with immune system disorder is known. One of the common causes of nosocomial infections is considered. Organisms oxidase positive, catalase positive, animated, and aerobic and lacks the ability to ferment carbohydrates. Group B beta-lactamase, which called MBL. Since the range generally mak...
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