نتایج جستجو برای: ac susceptibility
تعداد نتایج: 166935 فیلتر نتایج به سال:
Adenocarcinoma (AC) and squamous cell carcinoma (SqCC) are two major histological subtypes of lung cancer. Genome-wide association studies (GWAS) have made considerable advances in the understanding of lung cancer susceptibility. Obvious heterogeneity has been observed between different histological subtypes of lung cancer, but genetic determinants in specific to lung SqCC have not been systema...
CD4(+)CD25(+) regulatory T cell-mediated immunosuppression is one of the crucial mechanisms that tumor cells use to evade the immune system. The forkhead box P3 (FoxP3) gene regulates regulatory T-cell development and function and may modulate the susceptibility to non-small cell lung cancer (NSCLC). Because a single nucleotide polymorphism (SNP) within the FoxP3 gene (rs3761548 in the promoter...
A chondroitinase that degrades only chondroitin sulphate B was isolated from Flavobacterium heparinum, and separated from a constitutive chondroitinase AC also present in extracts of F. heparinum. The enzyme acts only on chondroitin sulphate B, producing oligo- and tetra-saccharides, plus an unsaturated 4-sulphated disaccharide (deltaDi-4S). The oligosaccharide fraction (mol. wt. 3000) is susce...
In this work, we present the synthesis, structure, and magnetic studies of three 1D homo-spin Dy(III) compounds in detail. For 1, one crystallography-independent Dy(III) site is contained and the coordination surrounding is a distorted square-antiprism geometry. Within 2, four crystallography-independent Dy(III) sites with largely distorted square-antiprism geometry are observed. As for 3, two ...
The main purpose of this work was to design, develop and construct a simple, low-cost ac susceptometer to measure large, bulk superconducting samples (up to 32 mm in diameter) in the temperature range 78-120 K. The design incorporates a double heating system that enables a high heating rate (25 K h) while maintaining a small temperature gradient (<0.2 K) across the sample. The apparatus can be ...
We present results of ac susceptibility measurements highlighting the presence of thermal hysteresis and phase coexistence across the ferro-to antiferromag-netic transition in various CeFe 2 based pseudobinary systems. These results indicate that the ferro-to antiferromagnetic transition in these systems is first order in nature.
BACKGROUND Methyl-CpG binding domain 4 (MBD4) protein functions as a DNA repair enzyme and minimizes mutations at 5-methylcytosine. Polymorphisms in the DNA repair gene MBD4 may be associated with differences in DNA repair capacity and thereby influence an individual's susceptibility to lung cancer. To test this hypothesis, we examined the potential association between the MBD4 Glu346Lys polymo...
Pinning properties in 100nm thick continuous and porous superconducting Nb films are examined by ac susceptibility and dc magnetization measurements. The Nb filmwas deposited on a smooth Si substrate, while the porous film, NbP , was deposited on an anodized Al oxide substrate. Pores or ‘‘antidots’’ 40 nm in diameter, 100 nm apart, form a triangular array. The porous film presents commensurate ...
BACKGROUND Morphine is often administered to patients for pain management, but it is also recommended to ameliorate some types of cardiovascular diseases. Nevertheless, there is a lack of information regarding the effect of prolonged morphine treatment on myocardial adenylyl cyclase (AC) signaling, which plays an important role in regulating heart function. METHOD The present work has investi...
We investigate chaotic, memory, and cooling rate effects in the three-dimensional Edwards-Anderson model by doing thermoremanent ~TRM! and ac susceptibility numerical experiments and making a detailed comparison with laboratory experiments on spin glasses. In contrast to the experiments, the Edwards-Anderson model does not show any trace of reinitialization processes in temperature change exper...
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