2,086 Result(s)
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Article
Ultra low frequency electromagnetic wave anomaly and its spectrum characteristics before earthquakes
Many observations and researches show that abundant and intense ultra low frequency (ULF) electromagnetic anomalies appeare before local earthquakes. In order to understand this phenomenon systematically, the ...
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Chapter
Development of 1.5W 4K G-M Cryocooler with Magnetic Regenerator Material
A two-stage 4K Gifford-McMahon (G-M) cycle cryocooler with magnetic regenerator material which has cooling capacity 1.5W at 4.2K has been developed. The hybrid structural second regenerator composed of lead an...
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Article
Experimental study on tumor treated with Daidzein
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Article
Fluorescence and Fourier-transform infrared spectroscopic studies on the role of disulfide bond in the calcium binding in the 33 kDa protein of Photosystem II
The 33 kDa protein of Photosystem II has one intrachain disulfide bond. Fluorescence spectroscopy shows that the major groups in the protein that bind to Ca2+ should be the carboxylic side groups of glutamic acid...
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Chapter
Temperature Stabilization on Cold Stage of 4 K G-M Cryocooler
A simple method of temperature stabilization on cold stage of 4 K Gifford-McMahon (GM) cryocooler has been proposed. A copper pot connected to compressor unit by a stainless steel capillary tube is mounted on ...
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Chapter
The Effect of Pressure Loss at Intake/Exhaust Valve on Performance of a 4K G-M Cryocooler
The influence of pressure loss at intake/exhaust valve on performance of a 4K Gifford- McMahon(GM) cryocooler has been investigated. Two types of valves with different flow conductance were tested. The perform...
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Article
Effect of Shenmai injection
on cardiac function and cellular immunity of patients with infantile viral myocarditis) on cardiac function and cellular immunity of patients with infantile viral myocarditis
Objective: To evaluate the clinical effect of Shenmai injection (SMI) on infantile viral myocarditis.Methods: Fifty patients were treated with SMI combined with routine Western medicines,...
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Article
Dynamic thermal analysis of solid-state reactions
There are many reactions of interest in which one or more of the reactants belong to some solid phases. Modern thermoanalytical instruments can conveniently provide reaction kinetic data of high precision and ...
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Article
A kind of information on short-term and imminent earthquake precursors—research on atmospheric electric field anomalies before earthquakes
The long-time practice of observational research on earthquake prediction has shown that the information on short-term and imminent earthquake precursors can hardly be detected, but it is very important for pr...
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Chapter
Model-Checking a Secure Group Communication Protocol: A Case Study
With the explosive growth of the Internet and the distributed applications it supports, there is a pressing need for secure group communications — the ability of a group of agents to communicate securely with ...
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Protocol
Functional Analysis of the β2 Integrins
The interaction of integrins with their ligands is an essential step in regulating many cellular functions (1). The β2 integrins, which are exclusively expressed on leukocytes, are of critical importance for leuk...
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Article
Isoconversion method for kinetic analysis of solid-state reactions from dynamic thermoanalytical data
The activation energy for a heterogeneous reaction involving a solid may be obtained from a plot of ∫α 0 ln(dα/dt) dα against ∫α 0(1/T) dα, where α represents the fractional conversion of the solid reactant, and ...
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Article
Structures and performance of Pd–Mo–K/Al2O3 catalysts used for mixed alcohol synthesis from synthesis gas
The structures of the palladium-modified Mo–K/Al2O3 catalyst samples were characterized by the XRD, LRS, and EXAFS techniques and correlated to the catalytic properties of the samples for alcohol synthesis from s...
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Chapter and Conference Paper
Robust Segmentation of Medical Images Using Geometric Deformable Models and a Dynamic Speed Function
A number of methods based on geometric deformable models have been proposed recently to segment medical images. These methods require the definition of a speed function that governs model deformation. In this ...
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Article
Differentiation of nasal fossa involvement and its clinical significance in nasopharyngeal carcinoma
Objective: To evaluate the prognostic influence on local control and survival in vary patterns of nasal fossa involvement in nasopharyngeal carcinoma (NPC) after radiation therapy. Methods: Between November 19...
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Article
Family history and risk of breast cancer in Hispanic and non-Hispanic women: the New Mexico Women's Health Study
Objectives: Many epidemiologic studies have demonstrated that an increased risk of breast cancer is associated with positive family history of this disease. Little information had been available on the relations...
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Chapter
Clathrin And Associated Proteins On Tubulovesicles And Apical Membranes Of Parietal Cells
In the unstimulated gastric parietal cell, a major proportion of the gastric H,K-ATPase resides in an intracellular tubulocisternal (tubulovesicular) membrane compartment. Upon the stimulation of the parietal ...
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Article
Endogenous hormone levels at technical maturing stage of sugarcane
Ethylene evolution of leaf and contents of ABA and IAA in cane-tip were measured during late growth stage of sugarcane. The ethylene evolution of different leaves (the leaf with TVD was defined as leaf +1, oth...
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Article
Comprehensive analysis of the gene expression profiles in human gastric cancer cell lines
Gastric adenocarcinoma is one of the major malignancies worldwide. Gastric cell lines have been widely used as the model to study the genetics, pharmacology and biochemistry of gastric cancers. Here we describ...
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Article
BMP4 initiates human embryonic stem cell differentiation to trophoblast
The excitement and controversy surrounding the potential role of human embryonic stem (ES)1,2 cells in transplantation therapy have often overshadowed their potentially more important use as a basic research tool...
