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1.
"The hypothesis is that response potential is a function of message unity." It was tested by sending messages to potential buyers of vitamins and having them respond to a questionnaire. The messages were classified into 3 groups according to message unity. The results of this research, used as the basis for an MA thesis, verified the hypothesis. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

2.
"This study investigated the relationship between the possession of interpersonal knowledge about others and the ratings received as to leader potential… . The data indicate that the more interpersonal knowledge nonleader trainees had, the higher were the leader potential ratings they received from trainee leaders and trainee nonleaders." (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

3.
Rank has written of 3 phases "in man's winning his own individuality and in realizing his own creative potential." Sometimes Rank wrote of these as 3 types of persons—the adapted type, the neurotic type, and the creative type. 3 samples of architects were studied: I. Highly Creative Architects. II. Architects with "at least 2 yr. of work experience and association" with one of the architects qualified for sample I. III. Architects, none of whom had ever worked with any of the nominated highly creative architects. The mean creativity ratings for the 3 groups are 5.46, 4.25, and 3.54 respectively. "The differences are in the expected direction and are statistically highly significant." Rank's ideas about the constructive formation of personality and creative development are discussed. What is "most impressive about Architects I is the degree to which they have actualized their creative potentialities. Architects III… appear to have incorporated into their egos, and into their images… the more conventional standards of society and of their profession. Arichitects II, by and large less creative than Architects I but more creative than Architects III, show an overlapping of traits with both of the other groups." (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

4.
周明 《铜业工程》2001,(4):69-71
本文针对德兴铜矿大山选矿厂的资源配置和技术条件进行了全面的分析和研究 ,指出大山选矿厂潜在的生产能力 ,并作出了可行性分析 ,对指导生产和经营有一定的参考作用。  相似文献   

5.
Surface preparations showed that the "jerker" mutant mouse has a normal total number of cochlear hair cells when young but that these progressively degenerate with increasing age. However, no gross 8th nerve action potentials or cochlear microphonics could be detected at the round window in 12–20 day old mutants, although many hair cells still appeared to be intact at these ages. Light microscopy of surface preparations is apparently a poor indicator of the functional state of hair cells, at least in genetically determined inner-ear defects. The endocochlear potential (EP) was significantly higher in the mutants than in controls during the maturation of the cochlea. During anoxia induced in adults, EP fell to a significantly less negative value in mutants than in controls. This abnormality in the anoxia potential probably reflects an organ of Corti abnormality. (30 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

6.
Reviews the book "Dynamic Testing: The Nature and Measurement of Learning Potential," by R. J. Sternberg and E. L. Grigorenko (see record 2002-01422-000). Unlike "static" tests, dynamic tests emphasize learning potential rather than past learning accomplishments. The book opens with a theoretical framework of abilities as forms of development expertise. It continues with an introduction to dynamic testing and then a capsule history of dynamic testing. The book also reviews other diverse approaches to dynamic testing. The authors present their own three-pronged approach to dynamic testing along with two case studies from their own research in which dynamic testing was utilized. The book is valuable for school psychologists interested in understanding more about dynamic testing of abilities and the progress in the field. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献   

7.
从浸出机制和迁移扩散角度出发,研究了镍铁渣的产酸潜势、浸出毒性和其混凝土产品的浸出毒性。结果表明,镍铁渣产酸潜势为不产酸,本身不是一个酸性排放源;腐蚀性、浸出毒性小于国家标准限值。镍铁渣混凝土产品在酸性和碱性环境下,只有砷少量浸出,但未超过《地下水质量标准》。因此,镍铁渣可以直接入场作为混凝土掺和料进行综合应用,环境风险较小。  相似文献   

8.
A moist thermodynamic advection parameter,defined as an absolute value of the dot product of horizontal gradients of three-dimensional potential temperature advection and general potential temperature,is introduced to diagnose frontal heavy rainfall events in the north of China.It is shown that the parameter is closely related to observed 6-h accumulative surface rainfall and simulated cloud hydrometeors.Since the parameter is capable of describing the typical vertical structural characteristics of dynamic,thermodynamic and water vapor fields above a strong precipitation region near the front surface,it may serve as a physical tracker to detect precipitable weather systems near to a front.A tendency equation of the parameter was derived in Cartesian coordinates and calculated with the simulation output data of a heavy rainfall event.Results revealed that the advection of the parameter by the three-dimensional velocity vector,the covariance of potential temperature advection by local change of the velocity vector and general potential temperature,and the interaction between potential temperature advection and the source or sink of general potential temperature,accounted for local change in the parameter.This indicated that the parameter was determined by a combination of dynamic processes and cloud microphysical processes.  相似文献   

9.
Sibutramine is a serotonin and norepinephrine reuptake inhibitor that has shown efficacy as a weight loss and weight maintenance agent. Because of the abuse liability and physical dependence potential of amphetamines and related antiobesity agents, this study evaluated the abuse potential of sibutramine and compared it with that of dextroamphetamine and placebo in recreational stimulant users. Thirty-one male recreational stimulant users participated in this single-site, Latin square crossover study that compared the effects of two doses of sibutramine (20 mg and 30 mg) to dextroamphetamine (20 mg and 30 mg) and placebo, using a series of validated subjective scales or questionnaires. For scales measuring stimulation and euphoria, there was a greater mean response for dextroamphetamine 30 mg versus 20 mg, with both doses having a significantly greater stimulant and euphoric effect than placebo at the majority of time points (p < 0.05); responses for both doses of sibutramine were statistically indistinguishable from placebo at all time points. Responses to "street value" and "most enjoyed study session" questions confirmed that sibutramine lacks abuse potential; mean cash value estimates of street value were significantly greater for both dextroamphetamine doses than for placebo or either sibutramine doses (p < 0.05), and the rank order of session enjoyment placed both doses of sibutramine last. Together with the relatively late Tmax of the active metabolites (3-4 hours), this short-term, single-dose study provides strong evidence that sibutramine does not have the potential for abuse that is characteristic of amphetamines and that it is indistinguishable from placebo in abuse potential.  相似文献   

10.
关于硫脲法的几个基本问题的讨论   总被引:4,自引:0,他引:4  
朱屯 《黄金》1989,10(11):26-30
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11.
离子选择电极测定氟离子方法的改进   总被引:1,自引:0,他引:1  
对离子选择电极测定氟离子的方法进行了改进,即先测样品溶液的电位值,再在空白溶液中逐滴加入氟标准溶液,直至电位值与样品溶液电位值相同,由推导的计算式即可简便得出样品溶液的浓度,测定结果与一次标准加入法的测定结果相符;并简单介绍了氟离子选择电极法中pH值、缓冲溶液和电极斜率S对氟离子测定的影响。  相似文献   

12.
The effect of bubble accumulation on anodic potential and current in the conversion of Fe2+/Fe3+ under porous electrodes (316L, ε = 78.73, ae = 11?150?m2?m?3) is studied. It was observed that when the electrolyte flow is under 2?mL?s?1 and the electrode thickness (L) is greater than 0.62?mm, the coalescence of bubbles blocks the electrode, thereby reducing the electroactive area and increasing the electrical resistance, which produces elevation and important oscillations in anodic potential. For higher flows between 8 and 16?mL?s?1, the potential tends to be uniform over time. The average measurement of anodic potential indicated that for working conditions of I = 0.1?A, L = 0.64?mm, the flow increases from 2 to 8?mL?s?1, reducing the average anodic potential value by 35%, while for I = 0.5?A, L = 1.86?mm, flow of 2 and 16?mL?s?1 reduces the average anodic potential by approximately 11%.  相似文献   

13.
Attempts to determine (a) the "extent to which various techniques and instrumentation are currently being utilized in physiological psychology" via empirical means, and (b) the "relative significance and potential contributions of various present and future technical developments for an understanding of the physiological bases of behavior" through value judgments. It is suggested that (a) biochemical techniques, (b) microelectrode methods, (c) telemetry, and (d) on-line control use of computers be increasingly employed for more profitable use in future physiological psychology. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

14.
硅酸盐矿物分类及浮游特性初探   总被引:1,自引:0,他引:1  
依据硅酸盐矿物Si(Al)-O四面体骨架外金属离子类别,将硅酸盐矿物分成4类.通过对一些选矿研究成果的统计,指出了这4类硅酸盐矿物在破碎特性、表面电位、油酸及十二胺浮选体系中可浮性的差异和该分类方法对硅酸盐矿物浮选的指导作用.  相似文献   

15.
Six potential dangers of obesity in childhood are examined. Three concern what may or may not happen if the child is left untreated, and three involve possible untoward consequences of applying treatment. Research bearing on each potential danger is discussed. It is concluded that not all obese children require treatment for obesity. Moreover, it is asked if some who are treated are possibly worse off because of having undergone treatment. Questions for practitioners to remain cognizant of, in order to help child obesity care be safe, effective, and justifiable, are offered. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

16.
Reports an error in "Harmful effects of posttermination sexual and romantic relationships between therapists and their former clients" by Laura S. Brown (Psychotherapy: Theory, Research, Practice, Training, 1988[Sum], Vol 25[2], 249-255). Reference was made to the Minnesota law regarding reporting of "any sexual or romantic relationship in which the parties were once therapist and client" (p. 250). Upon further review by the author, it was determined that the law is more complicated than conveyed in the article. A detailed explanation of the law is provided in the erratum, although legal counsel is suggested for further interpretation. (The following abstract of the original article appeared in record 1989-02991-001.) Examines anecdotal evidence regarding the harmful effects of posttermination sexual or romantic relationships between therapists and clients, focusing on relationships between female therapists and former clients who are also women. The question of equality of power between therapists and former clients is addressed. The impact of these relationships on the community in which they occur is considered. It is concluded that posttermination relationships between therapists and clients have the potential to do as much harm as relationships initiated during therapy and that such relationships should be defined as unethical. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

17.
To clarify the role of Ca ion in the rising phase of the sinoatrial (S-A) node action potential, the sigmoidal relationship between the maximum rate of rise of the action potential and the maximum diastolic potential was examined at various concentrations of Ca. The membrane potential was changed by applying a current across a single sucrose gap. The sigmoidal curve shifted toward the positive potential without a change in maximum value when the Ca concentration was increased from nominal "zero" to 10 mM. Therefore, it is concluded that Ca ion modifies the inactivation process of Na current which is responsible for the rapid rising phase of the S-A node action potential. The duration of the action potential and the maximum diastolic potential were decreased with an increase in Ca concentration. The observation that the overshoot of the action potential increased by 12 mV for a tenfold increase in concentration of Ca (within the range of 0.1-5.0 mM) suggests that the inward current of Ca ion may be responsible for the overshoot of the S-A node action potential.  相似文献   

18.
In this paper we consider the initial boundary value problem of Cahn-Hilliard equation with concentration dependent mobility and gradient dependent potential. By the Lp type estimates and the theory of Morrey spaces, we prove the HSlder continuity of the solutions. Then we obtain the existence of global classical solutions. The present work can be viewed as an extension to the previous work on the Cahn-Hilliard equation with concentration dependent mobility and potential.  相似文献   

19.
The authors studied dispersing behavior of a nanoceria abrasive under joint actions of mechanical ultra-sonication and chemical dispersants,to explore effective approaches and methods for dispersing it and manifesting its functions of nanometric scale.It was found that mechanical ultra-sonication solely could not disperse the nanoceria abrasive effectively,while dispersants such as sodium hexametaphosphate(SHP) and sodium dodecylbenzenesulfonate(SDBS) could help to disperse the nanoceria abrasive.SHP and SDBS were found to increase value of zeta potential of the nanoceria abrasive markedly and decrease level of apparent viscosity of its slurry observably.It was deduced by analysis that the dispersants increased inter-particles mutual repulsive force by forming steric hindrance between particles and augmenting zeta potential of particle surfaces,which could overcome van der Waals attracting force to some extent,reduce agglomeration and flocculation of the nanoceria particles,thus improve dispersibility and stability of the nanoceria particles in slurries.  相似文献   

20.
采用电泳沉积技术在Ni基体上制备Fe2O3膜,研究pH值对Fe2O3悬浮液稳定性的影响;沉积时间对电泳沉积速率,沉积层厚度及致密度的影响;高温处理对Fe2O3膜的致密度及膜与基体之间结合性能的影响。利用扫描电镜(SEM)、纳米粒度及zeta电位分析仪对电泳沉积进行表征。实验结果表明:当pH值为3时,悬浮液的zeta电位高达67 mV以上,此时悬浮液分散均匀。当电场强度为30 V/cm,沉积时间为120 s时,可以制备出均匀、无裂纹、相对密度为56%的Fe2O3膜。经1 000℃与1 100℃热处理4 h后,Fe2O3膜的致密度有所提高,与基体之间的结合性能改善。  相似文献   

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