137 Result(s)
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Article
**ao-xu Liu
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Article
Some phenomena for weak spring Duffing equation in subharmonic and ultrasubharmonic region
In this paper the situation in which weak spring Duffing equation gets into the chaos on account of small perturbation is discussed with Melnikov-Holmes' method, and some phenomena in which the different subha...
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Analysis and study of the large earthquake risk in Yanqing-Huailai basin
On the basis of study results of deep sounding in the Yanqing-Huailai basin, the shallow active tectonics, palaeoseismic events, seismic activity, distribution of crustal stress field and other related data ar...
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On the ore-forming conditions and ore-forming model of the superlarge multimetal deposit in Shizhuyuan
Eight favorable ore-forming conditions for the Shizhuyuan W-multimetal deposit are proposed. They are: (i) the geochemistry background special enriching the volatile and W and Sn ore-forming elements; (ii) the...
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Cell evolutionary algorithm: a new optimization method on ground-state energy of the atomic
The purpose of this paper is to present a new general approach to solve ground-state energies of the double-electron systems in a uniform magnetic field, in which the basic element of evolution is the set in t...
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Up-regulation of cyclooxygenase-2 gene expression correlates with tumor angiogenesis in human breast cancer
Objective: To study the relationship between cyclooxygenase-2 (COX-2) expression and tumor angiogenesis in human breast cancer. Methods: Archival primary breast carcinomas (n=62), adjacent ductal carcinomain situ
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Preparation of nano-copper as lubrication oil additive
Nano-copper used as lubrication oil additive has good tribological property and active self-repairing effect for friction pairs. The reduction in liquid phase for preparing nano-additive is one of the most com...
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Expression of type 1 insulin-like growth factor receptor in marrow nucleated cells in malignant hematological disorders: correlation with apoptosis
To verify the expression of type 1 insulin-like growth factor receptor (IGF-IR) and its impact on hematopoietic cells apoptosis in myelodysplastic syndromes (MDS) and acute myeloid leukemias (AML), marrow samp...
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Upper crust structure of eastern A’nyemaqên suture zone: Results of Barkam-Luqu-Gulang deep seismic sounding profile
Barkam-Luqu-Gulang deep seismic sounding profile runs from north of Sichuan Province to south of Gansu Province. It is located at the northeastern edge of Tibetan Plateau and crosses eastern A’nyemaqên suture ...
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LC–Tandem-MS Validation for the Quantitative Analysis of Levonorgestrel in Human Plasma
In this study, a rapid, sensitive and reproducible liquid chromatography–tandem mass spectrometry method for the determination of levonorgestrel in human plasma, was developed and validated. With a structural ...
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Regulation of zinc transporters by dietary flaxseed lignan in human breast cancer xenografts
Zinc is essential for cell growth. Previous studies have shown that zinc concentration in breast cancer tissues is higher than that in normal breast tissues. Zinc cannot passively diffuse across cell membranes...
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NO-1886 Up-regulates Niemann–Pick C1 Protein (NPC1) Expression Through Liver X Receptor α Signaling Pathway in THP-1 Macrophage-Derived Foam Cells
The Niemann–Pick C1 (NPC1) protein regulates the transport of cholesterol from late endosomes/lysosomes to other compartments responsible for maintaining intracellular cholesterol homeostasis. Liver X receptor...
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Combined Effects of Repeated Administration of 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Polychlorinated Biphenyls on Kidneys of Male Rats
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and polychlorinated biphenyls (PCBs) are persistent environmental contaminants that exist as complex mixtures in the environment, but the possible interactions of TCDD a...
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Downregulation of ornithine decarboxylase by pcDNA-ODCr inhibits gastric cancer cell growth in vitro
Ornithine decarboxylase (ODC), the first rate-limiting enzyme of polyamine biosynthesis, was found to be associated with cell growth, proliferation and transformation. ODC gene expression in gastric cancer was...
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A New Lanthanide Coordination Polymer with 4,4′-Oxybis (Benzoic Acid) Ligand: Hydrothermal Synthesis, Crystal Structure and Photoluminescence
Self-assemblies of the organic ligand 4,4′-oxybis(benzoic acid) with metal salt (Eu3+) have led to one new complex, namely, Eu(oba)2(phen) (1) (oba = 4,4′-oxybis (benzoic acid), phen = 1,10-phenanthroline). The s...
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Correlation between the expression of the BAG-1 gene and clinicopathologic factors in colorectal cancer
The present study aims to investigate the expression and significance of the anti-apoptotic gene Bag-1 in colorectal cancer and to evaluate the relationship between the gene and the disease.
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Tumor Necrosis Factor-α Up-Regulates the Expression of β1,4-Galactosyltransferase-I in Human Fibroblast-like Synoviocytes
β1,4-Galactosyltransferase-I (β1,4-GalT-I), which transfers galactose to the terminal N-acetylglucosamine of N- and O-linked glycans in a β1,4-linkage, is considered to be the major galactosyltransferase among...
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Open AccessUp-regulation of hypoxia inducible factor-1α by cobalt chloride correlates with proliferation and apoptosis in PC-2 cells
The exact mechanism of the effects of hypoxia on the proliferation and apoptosis in carcinoma cells is still conflicting. This study investigated the variation of hypoxia-inducible factor-1α(HIF-1α) expression...
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Design of large-core single-mode Yb3+-doped photonic crystal fiber
The effective index of the cladding fundamental space-filling mode in photonic crystal fiber (PCF) is simulated by the effective index method. The variation of the effective index with the structure parameters...
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Preparation of titanium powders by calciothermic reduction of titanium dioxide
To develop an effective process for titanium powders production, a calciothermic reduction process of pigment titanium dioxide (w(TiO2)>98%), based on the preform reduction process (PRP), was investigated by mean...
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Open AccessResolvin D1 reverses chronic pancreatitis-induced mechanical allodynia, phosphorylation of NMDA receptors, and cytokines expression in the thoracic spinal dorsal horn
We previously reported that immune activation in the spinal dorsal horn contributes to pain induced by chronic pancreatitis (CP). Targeting immune response in the CNS may provide effective treatments for CP-in...
