高速探测技术实现杰出的信号保真度

介绍了高速数字信号的模拟特点导致在高速环境中的反射、串扰、EMI、地面反弹及输运线阻抗和端接问题、探测工具及突现最佳信号保真度的技术。并通过SATA眼图测试环境演示了这些技术。     

2009年下半年消费电子市场开始复苏

对于消费电子市场来说非常不幸,正当假日购物季节即将来临的时候,却爆发了全球经济危机.对于消费电子产业来说,假日购物季节是一年中最重要的时机.     

Motives for cannabis use in high-risk adolescent users.

The present investigation examined the relationships between motives for cannabis use and negative consequences associated with cannabis use following a brief intervention. The sample consisted of 205 adolescent cannabis users (66.3% male), who were recruited in high schools and randomly assigned to a brief two-session motivational enhancement therapy (MET) or an educational feedback control (EFC). Results supported the hypothesis that using cannabis to cope with negative affect would predict the number of problems and dependence symptoms related to cannabis use, after controlling for age, gender, years and frequency of cannabis use, and internalizing and externalizing behavior problems. Significant interactions between internalizing behavior problems and the coping motive showed that using to cope was associated with a higher number of cannabis dependence symptoms among adolescents reporting lower levels internalizing behavior problems. Findings support the potential utility of conducting further research to explore the coping motive as an important indicator of problematic cannabis use. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Accounting for age differences on the Wisconsin Card Sorting Test: Decreased working memory, not inflexibility.

Two experiments examined the role of cognitive inflexibility and reduced working memory in age-related declines on the Wisconsin Card Sorting Test. Ss for the first experiment were 85 younger adults (mean age 19.7 yrs) and 76 older adults (mean age 70.3 yrs). For the second experiment, Ss were 48 younger and 48 older adults (mean ages 20.3 yrs and 69.8 yrs, respectively). Both standard scoring procedures and newly developed scores were used to measure each construct, and modifications of the test further evaluated the role of working memory. Results indicated that age differences are not due to cognitive inflexibility but that for a subset of older adults errors are associated with a reduction in the amount of information that can be stored or processed in working memory. These age differences disappear, however, when visual cues provide information about the immediately preceding sort. The authors conclude by proposing a decline in updating working memory as the explanation that can best account for the entire pattern of age differences on this test. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Separation-individuation difficulties and cognitive-behavioral indicators of eating disorders among college women.

We tested the theoretical link between difficulties with separation–individuation and a set of cognitive–behavioral indicators characteristic of anorexia nervosa and bulimia. The results showed robust empirical relations; the pattern of associations for subjects' reported difficulties in separating from their mothers was somewhat more complex than those reported with respect to their fathers. Dependency conflicts and poor self–other differentiation were predictive of bulimia, the pursuit of thinness, an inability to discriminate feelings and sensations, distrust of others, immaturity, and beliefs about personal inadequacy. the findings support theoretical assertions about intrapsychic and familial factors that contribute to the etiology and maintenance of eating disorders and about the potentially serious emotional consequences for young women who fail to achieve a sense of psychological separateness. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stereotype formation and endorsement: The role of implicit theories.

Five experiments supported the hypothesis that peoples' implicit theories about the fixedness versus malleability of human attributes (entity versus incremental theories) predict differences in degree of social stereotyping. Relative to those holding an incremental theory, people holding an entity theory made more stereotypical trait judgments of ethnic and occupational groups (Experiments 1, 2, and 5 ) and formed more extreme trait judgments of novel groups ( Experiment 3 ). Implicit theories also predicted the degree to which people attributed stereotyped traits to inborn group qualities versus environmental forces (Experiment 2). Manipulating implicit theories affected level of stereotyping (Experiment 4), suggesting that implicit theories can play a causal role. Finally, implicit theories predicted unique and substantial variance in stereotype endorsement after controlling for the contributions of other stereotype-relevant individual difference variables (Experiment 5). These results highlight the importance of people's basic assumptions about personality in stereotyping. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Current treatments for bipolar disorder: A review and update for psychologists.

Practicing psychologists are likely to be confronted with the diagnostic and treatment challenges associated with bipolar disorder, particularly the various classes of medication currently used in pharmacotherapy for the disorder. Although lithium remains a valuable resource, limitations associated with its use have prompted clinicians and researchers to explore the application of several different classes of agents, including anticonvulsants, calcium channel blockers, atypical antipsychotics, benzodiazepines and antidepressants, to the acute and long-term management of bipolar disorder. A review of these agents, as well as a summary of various psychotherapeutic modalities that can serve as adjunctive interventions to pharmacotherapy, is provided for psychologists. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A modified balance-sheet procedure for decision making in therapy: Cost-cost comparisons.

This article describes a simple intervention that can be used when clients find it difficult to make a decision: to weigh the costs and ignore the benefits of any alternative choices considered. A critique of the literature shows the advantages of this approach over I. L. Janis and L. Mann's (1977) full-scale balance-sheet procedure. Three case examples are presented to demonstrate the effectiveness of the cost–cost comparison. (PsycINFO Database Record (c) 2010 APA, all rights reserved)