224 Result(s)
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Article
Do lamprophyric magma carry gold ?
By taking lamprophyres in the Laowangzhai gold orefield, Yunnan Province, as starting materials, the melting experiments of lamprophyre + gold have been conducted under 1.5 and 3.0 GPa in a DS-29A cubic-type 3...
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Article
Expression of vascular endothelial growth factor in rat uterus during peri-implantation
The first distinct mark of rodent implantation is the increased vascular permeability and significant angiogenesis at the sites of blastocyst implantation, but its mechanism is not clearly defined. Vascular en...
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Article
Angiogenesis in female reproductive system
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Article
Expression of gelatinases and tissue inhibitors of metalloproteinases in the rhesus monkey (Macaca mulatta) corpus luteum
Matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) are believed to play important roles in the formation and regression of corpus luteum (CL). This study is to investigate the expression of g...
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Article
Expression and regulation of metalloproteinases-2, -9 and tissue inhibitors of metalloproteinases in rat corpus luteum
The expression and regulation of metalloproteinases-2, -9 (MMP-2, -9) and their tissue inhibitors TIMP-1,-2, -3 mRNA were studied in this experiment. In the PMSG-hCG primed pseudopregnant rat, MMP-2, -9 mRNA l...
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Article
Expression and localization of RAP250 mRNA in rat ovary
The expression levels of nuclear receptor coregulators in specific tissue compartments and cells are thought to influence the expression of hormone-responsive genes involved in metabolism, development, and rep...
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Article
Regulation of ovarian function by the matrix metalloproteinase system
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Article
Nitric oxide in female reproductive system
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Article
Regulation of embryo implantation by nitric oxide in mouse
Intrauterine injection and zymography were used to investigate the effect of nitric oxide (NO) on embryo implantation in mice. On day 3, one uterine horn of female pregnant mice was injected intraluminally wit...
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Article
Effect of UPP on the expression of VEGF and its receptors in mouse uterus during peri-implantation
On day 3 of gestation, one uterine horn of female pregnant mouse was injected intraluminally with 5 µL 0.1 µg/mL lactacystin, a specific inhibitor of ubiquitin-proteasome pathway (UPP), while the contralateral...
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Article
Direct observation of catch bonds involving cell-adhesion molecules
Bonds between adhesion molecules are often mechanically stressed. A striking example is the tensile force applied to selectin–ligand bonds, which mediate the tethering and rolling of flowing leukocytes on vasc...
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Article
On the Holocene sea-level highstand along the Yangtze Delta and Ningshao Plain, East China
The temporal-spatial distribution of Neolithic sites shows a long period of absence of human settlements during the early Holocene on the Yangtze Delta, and the area has not been colonized until 7000 aBP, corr...
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Chapter and Conference Paper
A Q-Based Framework for Demand Bus Simulation
With the development of telecom, it becomes possible to provide people with Location Based Service (LBS) according to their spatial positions by using mobile equipments. Before using such services, people shou...
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Article
Identifying paleoflood deposits archived in Zhongba Site, the Three Gorges reservoir region of the Yangtze River, China
Based on the principle that the present is the key to the past, detailed analyses, such as AMS14C dating, grain size, component and morphology of heavy minerals, micro-morphology of zircon, Rb/Sr, magnetic suscep...
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Article
Reconstruction of linkage maps in the distorted segregation populations of backcross, doubled haploid and recombinant inbred lines
Non-Mendelian segregation of markers, known as distorted segregation, is a common biological phenomenon. Although segregation distortion affects the estimation of map distances and the results of quantitative ...
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Article
Sensitivity of pollen factors in the climate transfer function
Constructing a mathematic transfer function of pollen and climatic factors is one of the most important approaches in the quantitative reconstruction of paleoclimate elements. In the function building, the key...
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Article
Characteristics of paleoflood deposits archived in unit T0403 of Yuxi site in the Three Gorges reservoir areas, China
Based on the detailed analyses, multi-proxies such as AMS 14C dating, grain size, component and morphology of heavy minerals, micromorphology of zircon, magnetic susceptibility, Rb/Sr and Hg content are used to r...
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Article
Spore-pollen-climate factor transfer function and paleoenvironment reconstruction in Dajiuhu, Shennongjia, Central China
The identified results of 121 surface sediment spore-pollen samples in Shennongjia and meteorological data base of 30 years (January, 1971–December, 2000) of 7 meteorological stations around Dajiuhu, Shennongj...
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Article
Relations between man and nature reflected by the evolution of the Neolithic production tools in the Three Gorges region of Yangtze River, China
The relations between man and nature reflected by evolution of Neolithic production tools in the Three Gorges region of Yangtze River is discussed in this paper. Our results show that there is a good correlati...
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Article
Reconstructing past subsistence patterns on Zhongba Site using stable carbon and oxygen isotopes of fossil tooth enamel
The oxygen and carbon isotopic ratios in human and animal tooth enamel were measured to reconstruct the subsistence patterns on Zhongba Site between 2400 and 4200 aBP. The results indicate that human consumed ...