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101.
The role of ceramide in cell signaling 总被引:1,自引:0,他引:1
102.
103.
YA Maurer-Groeli 《Canadian Metallurgical Quarterly》1976,221(3):259-271
37 acute schizophrenic inpatients were studied in respect to the therapeutic effect of the body-centered group psychotherapy (k?rperzentrierte Gruppenpsychotherapie). The evaluation was made by the rating of ego functions (Bellak et al., 1973). The acute schizophrenic patients with somatic disturbances (functional ones, body illusions and halluzinations, depersonalisation) turned out to make significantly better progress in ego functions (p less than 0.05) than the control sample. 相似文献
104.
105.
V.V. Barelko V.M. Beibutian YU.E. Volodin YA.B. Zeldovich 《Chemical engineering science》1983,38(11):1775-1780
Electrically heated filaments are frequently used to study catalytic processes. In this respect the phenomenon of propagation of nonlinear thermal waves which separate regions of different temperatures on an iron filament heated by an electrical current in H2 atmosphere has been theoretically and experimentally studied. It has been shown that the character of wave propagation is dependent on the condition of feeding the current. The waves are propagated with constant velocity when the feeding takes place from a stabilized current source, while the velocity is variable when a stabilized voltage source is used. In both cases the formation of non-uniform stable steady states (structures) is possible. In the first case they exist for a unique value of the parameter (current) while for the second case, stable structures are observed for a certain interval of values of the parameter (voltage). 相似文献
106.
107.
Y.A. Ellis-Akovali 《Nuclear Data Sheets》1981,33(4):557-639
The available nuclear structure information for all nuclei with mass number A=185 is presented. Various decay and reaction data are evaluated and compared. Adopted data, levels, spin, parity, and configuration assignments are given. 相似文献
108.
M Cedzyński A Rózalski K Kote?ko W Kaca EV Vinogradov YA Knirel NK Kochetkov 《Canadian Metallurgical Quarterly》1993,45(1):93-97
A variety of adrenal imaging agents have been used in nuclear medicine, but no agent has been developed for magnetic resonance (MR) imaging. The authors have previously observed accumulation of aminated macromolecules in adrenal glands. They now report the synthesis of a model polymeric aminated contrast agent for enhanced MR imaging of the adrenal glands. The model agent consisted of a poly-L-lysine conjugate (molecular weight, 245 kd) that had 70% free epsilon amino groups and 30% diethylenetriaminepentaacetic acid (DTPA)-derivatized amino groups to bind indium-111 or gadolinium. One hour after intravenous administration of this compound, adrenal uptake was 10.1% +/- 0.7 of injected dose per gram of tissue. When all free epsilon amino groups of the polylysine were completely substituted with DTPA, adrenal uptake was 3.4 times lower, indicating the importance of free amino groups for adrenal uptake. MR imaging in rats showed that a dose of 0.08 mmol of gadolinium per kilogram of the agent was sufficient to enhance the signal intensity of adrenal glands. There hours after intravenous administration of the agent, signal intensity of the adrenal glands was 186% of precontrast values (liver, 165%; kidney, 91%). Fluorescence microscopy showed that the agent accumulated primarily in the cortical zona glomerulosa and in the adrenal medulla. These initial studies demonstrate the feasibility of designing contrast agents for MR imaging of the adrenal glands. 相似文献
109.
M Ala-Korpela Y Hiltunen J Jokisaari S Eskelinen K Kiviniity MJ Savolainen YA Kes?niemi 《Canadian Metallurgical Quarterly》1993,6(3):225-233
The purpose of this work was two-fold. In the first instance, 1H NMR spectra of the ultracentrifuged lipoprotein fractions (VLDL, LDL and HDL) from six volunteers with different clinical conditions were measured. The methylene regions of the experimental spectra were modelled in the frequency domain using non-linear lineshape fitting analyses. In this way the resolvable Lorentzian component structures of the methylene regions of these lipoprotein fraction spectra could be determined. Second, the lipoprotein fraction analyses were used to construct simplified component structures, which interpreted the lipoprotein fraction spectra well, and were feasible to use in the total plasma spectra analyses. The considerable overlap problem of the resonances was properly handled in this way. The NMR-based relative amounts of the lipoproteins (relative integrated intensities of the lipoprotein model signals) obtained were compared to the biochemically resolved relative molar percentages of the lipoprotein fractions and also of the lipid contents between the lipoprotein complexes. It was noticed that nearly all correlations were extremely good. Thus, it is suggested that the developed methodology could be used as a fast method to predict the relative amounts of the lipoproteins and also possibly the relative lipid contents between the major lipoprotein categories directly from the proton NMR spectrum of a total blood plasma sample. Furthermore, if internal or external reference for the integrated intensities of the proton NMR resonances were used, it should also be possible to obtain the absolute amounts of these quantities. 相似文献
110.
YA Mekori D Baram A Goldberg R Hershkoviz T Reshef D Sredni 《Canadian Metallurgical Quarterly》1993,91(3):817-824
Nedocromil sodium, a topical antiinflammatory agent recommended as a prophylactic regimen for asthma, is known to inhibit both allergic and nonallergic inflammatory processes in which an essential role for T cells has been implicated. Therefore the direct effects of this drug on several aspects of T-cell activity were analyzed in the present study. By using murine lymphocytes we found that NS at concentrations of 10(-8) to 10(-6) mol/L inhibited the mitogen- or antigen-induced proliferative responses of these cells. It is interesting to note that higher concentrations were ineffective. Preincubation of immune lymph node cells from contact sensitized mice with the drug abrogated their ability to transfer contact sensitivity to naive recipients, an effect that was found to be specific for the treated cells. Nedocromil sodium also interfered with the mitogen-induced interleukin-2 and tumor necrosis factor production by T cells and with their ability to adhere to the bound protein components of the extracellular matrix laminin and fibronectin. All these effects may be attributed to the inhibition of the increase of cytosolic calcium, which accompanies the early phase of T-cell activation and which is an essential step in inducing the aforementioned phenomena. 相似文献