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961.
The status of single-case designs in counseling psychology is reviewed. Also, reasons for the underuse of these designs by counseling psychologists are discussed. Finally, potential contributions (1) in research linking process and outcome, (2) in group counseling, (3) across a variety of theoretical approaches, and (4) to evaluation and quality assurance in clinical practice are described. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
962.
B López-Romero G Evrard F Durant M Sevrin P George 《Canadian Metallurgical Quarterly》1998,6(10):1745-1757
X-ray diffraction and ab initio MO theoretical calculations were used in order to investigate the structural and electronic properties of sarmazenil, a weak inverse agonist at the omega modulatory sites (benzodiazepine receptors). This compound was compared to bretazenil, a partial agonist, and to the antagonist flumazenil on the basis of structural and electronic data. The conformational and theoretical properties (interatomic pi overlap populations, molecular electrostatic potential (MEP), the topology of frontier orbitals, and proton affinity) of these three imidazobenzodiazepinones were determined in order to analyse the stereoelectronic properties in relation with their distinct intrinsic efficacies at the omega modulatory sites. 相似文献
963.
The saturation of the 2.71 μm laser output has been measured in erbium-doped ZBLAN singlemode fibres with Er3+ concentrations of 1000, 5000 and 10000 ppm mol. Limits of the single-mode-laser output are discussed 相似文献
964.
Crystals of mixed NdLa heptamolybdates (max. size0.75×0.75×0.75 mm3) grown by silica gel technique were characterized using EDAX, IR, optical and scanning electron micrscopies.X-ray as well as electrn diffraction. The composition of the crystals was determined as (Nd1/2 La1/2 )2 Mo7O24·35H2O.The crystals exhibit varied morpholgies including square and octagonal platelets, cuboids, multifaceted crystal in coalesced and aggregated forms and spherulites.The XRD results indicate crystallinity of the grown material. Electron diffraction results suggest thermal instability of the material. IR results show the presence of peaks due to water and metal-oxygen bonds 相似文献
965.
Non-functional variants of yeast mitochondrial ATP synthase subunit 8 that assemble into the complex
Myocardial and pulmonary beta-adrenoceptors can be imaged with 2-(S)-(-)-(9H-carbazol-4-yl-oxy)-3-[1-(fluoromethyl)ethyl]amino-2- propanol (S-1'-[18F]fluorocarazolol, I). Quantification of unmodified fluorocarazolol in plasma is necessary for analysis of PET images in terms of receptor densities. We have determined I and its radioactive metabolites in rat, sheep and human plasma, using (1) solid-phase extraction (C18) followed by reversed-phase HPLC and (2) direct injection of untreated plasma samples on an internal-surface reversed-phase (ISRP) column. The two methods were in good agreement. Unmodified I decreased from over 99% initially to less than 5%, 5-10% and 20% at 60 min post-injection in rats, sheep and human volunteers, respectively. Protein binding in sheep and human plasma was determined by ultrafiltration. The fraction of total plasma radioactivity bound to protein and the fraction representing unmodified radioligand were linearly correlated, suggesting that fluorocarazolol was more than 70% protein-bound, whereas its metabolites showed negligible protein binding. Direct injection of plasma on an ISRP column seems a convenient method for quantification of lipophilic radioligands such as fluorocarazolol. 相似文献
966.
For this study, 194 respondents completed a biographical data sheet, the Templer (1970) Death Anxiety Scale and the Constantinople (1973) Inventory of Psychosocial Development to help assess the relationship among death anxiety, age, and psychosocial maturity. Findings showed that psychosocial maturity was a better predictor of death anxiety than age was. However, both variables were significantly negatively correlated with death anxiety, revealing that as psychosocial maturity and age increase, death anxiety decreases. 相似文献
967.
968.
Currently, cell cultures are used for 3 kinds of applications in orthopaedics: diagnosis: they can help to diagnose hereditary diseases like Marfan syndrome, osteogenesis imperfecta, or some osteochondrodysplasia. biomaterial evaluation: cell cultures bring information to ensure safety and efficacy of medical devices following the European Community's directive concerning medical devices. Results of in vitro biomaterial evaluation must be related to cell types (osteoblasts or fibroblasts), cell species (human or rat) and methods used (primary cell line or immortalised cell line). therapy: first clinical applications of cell cultures have been published recently. They concern cultured autologous chondrocytes reimplantation. Bone cells cultured on biomaterials have been tested in animal reimplantation experiments. Animal cells mediated gene therapy experiments are now developed on muscle cells. Cell cultures allow also to determine the best therapeutic way to cure bone tumors. For the moment, these applications are still limited but in the next years, they could develop considerably. Therefore, orthopaedic surgeons must keep interest in this new field. 相似文献
969.
970.
B. Wu P.L. Chu 《Photonics Technology Letters, IEEE》1996,8(2):230-232
We report an experimental investigation of the fast optical switching in a Sm/sup 3+/-doped fiber. We discovered that this fiber can effect a fast switching speed less than 5 ns. However, the required switching power is 472 W with pulsewidth 10 ns. 相似文献