排序方式: 共有23条查询结果,搜索用时 78 毫秒
1.
2.
Background
Growth hormone (GH) plays an incompletely understood role in the development of the central nervous system (CNS). In this study, we use transgenic mice expressing a growth hormone antagonist (GHA) to explore the role of GH in regulating postnatal brain, spinal cord and body growth into adulthood. The GHA transgene encodes a protein that inhibits the binding of GH to its receptor, specifically antagonizing the trophic effects of endogenous GH. 相似文献3.
M. Yu. Rozenshtein E. S. Ihalainen S. E. Kondakov O. S. Prokoptseva A. Z. Rozenshtein 《Moscow University Chemistry Bulletin》2011,66(3):188-193
Under consideration is the application of a methodology of nonspecific biomarkers to the interpretation of the titers of specific
immunoglobulins of type IgG for the purpose of accurate determination of a threshold between normal and abnormal values. Proposed
is a mathematical model of assessment of a phase status of a biological entity based on the ranking of a series of concentrations
of specific immunoglobulins of type IgG. 相似文献
4.
5.
6.
7.
The results of studies of the effect of thermal annealing on the magnetic properties of thin films of Co-Pd alloys are described,
along with a method for obtaining easy-axis perpendicular anisotropy in these materials. The method consists of depositing
layers of the alloy on a substrate whose thermal expansion coefficient is considerably smaller than that of the film, and
then annealing it in a vacuum. This method is used to prepare samples with rectangular hysteresis loops for magnetization
perpendicular to the plane of the film, coercive forces of 750 Oe, and Kerr rotation angles of 0.21°. Also presented are the
results of experiments on thermomagnetic recording on the samples.
Zh. Tekh. Fiz. 68, 66–70 (April 1998) 相似文献
8.
V.B. Rozenshtein Yu.M. Gershenzon S.D. Ilin O.P. Kishkovitch 《Chemical physics letters》1984,112(5):473-478
A combined EPR/LMR spectrometer and fast-flow system has been used to investigate the reactions HO2 + NO(k1), HO2 + OH(k2), HO2 + HO2(k3) at room temperature. The rate constants have been measured: k1 = (7.0 ± 0.6) × 10?12 cm3 s?1 (P = 7–10 Torr);k2 = (5.2 ± 1.2) × 10?11 cm3 s?1 (P = 8–10 Torr);k3 = (1.65 ± 0.3) × 10?12 cm3 s?1 (P = 2.1–24.9 Torr). The conclusion is drawn from analysis of the literature and the present work that k2 and k3 do not depend on pressure up to 1 atm. 相似文献
9.
Novel mechanisms of the electron spin polarization were reported. Effect of spin-selective interactions within the photo-excited preexisting molecular dimers was utilized. Processes occurring within dimers and upon escape from the dimer cage were considered. 相似文献
10.
Gil Zilber Vladimir Rozenshtein Ari Ayalon Haim Levanon Mordecal Rabinovitz Lawrence T. Scott Hope B. Warren Gaby Persy Jakob Wirz 《Research on Chemical Intermediates》1996,22(9):839-854
Five reaction stages have been identified in the reduction of pyracylene to its dianion. The same stages were also observed in the photochemical oxidation starting with the dianion. The formation of dimers of anions and of mixed valence aggregates is discussed. 相似文献