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216 Result(s)
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Article
Abnormal hemoglobins in the Silk Road region of China
A review is presented of the occurrence of 24 abnormal hemoglobins (13 α-chain variants and 11 β-chain variants) in populations in the Silk Road area of Northwestern China. Most frequently occurring were Hb D-...
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Article
The degradation of YBa2Cu3O7 resulting from exposure to wet and dry steam
The severity of degradation of YBa2Cu3O7−x from exposure to an aqueous phase has the following dependence: wet steam (condensed thin film) > bulk fluid phase > dry steam, other variables being constant. Also, the...
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Article
Mössbauer effect study on mechanically alloyed amorphous Fe1−x Ti x alloys
Amorphous Fe1−x Ti x (x=0.50, 0.60) powders were produced by mechanical alloying from pure elemental powders in a vibratory ball-mill. X-ray diffraction (XRD) and Mössbauer effe...
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Article
Clinical study of chronic renal failure treated with Baoyuan Dahuang Decoction (保元大黄汤)
Chronic renal failure patients (as test group) under treatment by Baoyuan Dahuang Decoction, other 20 cases (as control group) by western medicine, mainly coated aldehyde oxystain, had commonly blood urea nitr...
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Article
A global survey of haplotype frequencies and linkage disequilibrium at the DRD2 locus
A four-site haplotype system at the dopamine D2 receptor locus (DRD2) has been studied in a global sample of 28 distinct populations. The haplotype system spans about 25 kb, encompassing the coding region of ...
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Article
Microcalorimetric study on the antibiotic activity of clarithromycin and erythromycin
By using LKB-2277 Bioactivity Monitoring System, the heat effect changes in the process of inhibitory action of clarithromycin and erythromycin onEscherichia coli at 37°C were determined. Quantitative analysis sh...
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Article
Effects of pl6INK4 gene on chemosensitivity of human glioma U251 cell line to teniposide
Objective: To determine the effects on the cell growth, tumorigenicity and chemosensitivity of pl6/CDK4I in human glioma. Methods: pl6 gene was transfected into U251 cells by lipofectin. Expression of exogenou...
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Article
Habitat Degradation of Rhinopithecus bieti in Yunnan, China
Black-and-white snub-nosed monkeys (Rhinopithecus bieti) are endemic to the Trans-Himalayas in Northwest Yunnan and Southeast Tibet between the upper Yangtze and Mekong Rivers. Based on field surveys and previous...
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Article
Chiral Separation of Binaphthol Enantiomers on Molecularly Imprinted Polymer Monolith by Capillary Electrochromatography
A novel enantioseparational monolithic stationary phase for binaphthol based on a molecular imprinting method was introduced and evaluated in capillary electrochromatography (CEC). The monolithic stationary wa...
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Article
Effect of lead exposure on the immune function of lymphocytes and erythrocytes in preschool children
Objective: To investigate the influence of lead exposure on the immune function of lymphocytes and erythrocytes in preschool children. Materials and methods: A group of 217 children three to six years of age f...
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Article
Application of micro-ct assessment of 3-d bone microstructure in preclinical and clinical studies
As the mechanical competence of trabecular bone is a function of its apparent density and 3-D distribution, assessment of 3-D trabecular structural characteristics may improve our ability to understand the pat...
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Article
Small heat-shock protein 22 mutated in autosomal dominant Charcot-Marie-Tooth disease type 2L
Charcot-Marie-Tooth (CMT) disease is the most common inherited motor and sensory neuropathy. We have previously described a large Chinese CMT family and assigned the locus underlying the disease (CMT2L; OMIM 6...
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Article
Study on the neurotoxic effects of low-level lead exposure in rats
Objective: To investigate effects of developmental lead exposure on nitric oxide synthase (NOS) activity in different brain regions and on N-methyl-D-aspartate (NMDA) receptor mRNA expression in the hippocampu...
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Article
Induction of gastric intraepithelial neoplasia of glandular stomach of mongolian gerbils by elicobacter pylori
Objective: To setup an animal model of gastric carcinogenesis by Helicobacter pylori (Hp) for basic, prevention and therapeutic research of Hp-related diseases. Methods: 22 young male Mongolian g...
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Article
Treatment and follow-up of children with transient congenital hypothyroidism
Objective: To study the clinical therapy and prognosis in children with transient congenital hypothyroidism (CH). Methods: Fifty-seven children with CH diagnosed after neonatal screening were treated with low-...
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Article
Application of Liquid-Phase Microextraction and Gas Chromatography-Mass Spectrometry for the Determination of Chloroform in Drinking Water
In this paper, a novel method for the determination of chloroform in drinking water has been described. It is based on liquid-phase microextraction (LPME) and gas chromatography–mass spectrometry (GC-MS). Extr...
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Article
Sensitive measurement of ultratrace phenols in natural water by purge-and-trap with in situ acetylation coupled with gas chromatography-mass spectrometry
A novel purge-and-trap method coupled with gas chromatography-mass spectrometry (GC-MS) is developed for the analysis of trace and ultratrace phenols based on their derivatization with acetic anhydride. Parame...
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Article
Nonequilibrium hollow-fiber liquid-phase microextraction with in situ derivatization for the measurement of triclosan in aqueous samples by gas chromatography–mass spectrometry
Hollow-fiber liquid-phase microextraction (HF-LPME), a relatively new sample preparation technique, has attracted much interest in the field of environmental analysis. In the current study, a novel method base...
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Using bamboo charcoal as solid-phase extraction adsorbent for the ultratrace-level determination of perfluorooctanoic acid in water samples by high-performance liquid chromatography–mass spectrometry
In recent years, bamboo charcoal, a new kind of material with special microporous and biological characteristics, has attracted great attention in many application fields. In this paper, the potential of bambo...
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Article
Open AccessSurgical treatment and outcome of pulmonary hamartoma: a retrospective study of 20-year experience
Controversy still exists in the indication and timing of surgical treatment of pulmonary hamartoma (PH). The objective of this study is to summarize the experience and the outcome of the surgical treatment for...