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针对陕西渭河发电有限责任公司5号炉磨煤机乙磨大轴断裂失效进行了金属分析。结果表明应加强制造质量监控和实施设备全过程金属监督。 相似文献
115.
Shea M. Tracie; Stout Robert L.; Yen Shirley; Pagano Maria E.; Skodol Andrew E.; Morey Leslie C.; Gunderson John G.; McGlashan Thomas H.; Grilo Carlos M.; Sanislow Charles A.; Bender Donna S.; Zanarini Mary C. 《Canadian Metallurgical Quarterly》2004,113(4):499
In this study, the authors examined time-varying associations between schizotypal (STPD), borderline (BPD), avoidant (AVPD), or obsessive-compulsive (OCPD) personality disorders and co-occurring Axis I disorders in 544 adult participants from the Collaborative Longitudinal Personality Disorders Study. The authors tested predictions of specific longitudinal associations derived from a model of crosscutting psychobiological dimensions (L. J. Siever & K. L. Davis, 1991) with participants with the relevant Axis I disorders. The authors assessed participants at baseline and at 6-, 12-, and 24-month follow-up evaluations. BPD showed significant longitudinal associations with major depressive disorder and posttraumatic stress disorder. AVPD was significantly associated with anxiety disorders (specifically social phobia and obsessive-compulsive disorder). Two of the four personality disorders under examination (STPD and OCPD) showed little or no association with Axis I disorders. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
116.
Klaczynski Paul A.; Schuneman Mary J.; Daniel David B. 《Canadian Metallurgical Quarterly》2004,40(4):559
Children and adolescents were presented with problems that contained deontic (i.e., if action p is taken, then precondition q must be met) or causal (i.e., if event p occurs, then event q will transpire) conditionals and that varied in the ease with which alternative antecedents could be activated. Results showed that inferences were linked to the availability of alternative antecedents and the generation of "disabling" conditions (claims that the conditionals were false under specific circumstances). Age-related developments were found only on problems involving indeterminate inferences. Correlations among inferences differed for children and adolescents. The findings provide stronger support for domain-general theories than for domain-specific theories of reasoning and suggest, under some conditions, age-related changes in the roles of implicit and explicit processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
117.
Welkowitz Joan; Welkowitz Lawrence A.; Struening Elmer; Hellman Fred; Guardino Mary 《Canadian Metallurgical Quarterly》2004,41(1):69
Questionnaire data from 2,033 participants in the National Anxiety Disorders Screening Day sample were used to assess the presence of panic and comorbid anxiety problems. These participants were selected from more than 15,000 attendees on the basis of never having received treatment for a psychiatric disorder and meeting screening criteria for panic disorder. With each comorbid anxiety problem (generalized anxiety disorder, posttraumatic stress disorder, social phobia, and obsessive-compulsive disorder), participants had a corresponding increase in interference in daily living as well as readiness to seek treatment. The addition of generalized anxiety or depression with panic symptoms resulted in marked increases in interference scores. Clinical treatment implications for panic disorder are discussed in terms of the effects of comorbid anxiety problems. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
118.
Lewis Melissa A.; Hove M. Christina; Whiteside Ursula; Lee Christine M.; Kirkeby Benjamin S.; Oster-Aaland Laura; Neighbors Clayton; Larimer Mary E. 《Canadian Metallurgical Quarterly》2008,22(1):58
The present research was conducted to clarify the relationships among social anxiety, alcohol consumption, alcohol-related problems, and negative-reinforcement drinking motives among college students. Heavy drinking students (N = 316, 53.80% female) completed self-report measures of social anxiety, alcohol consumption, alcohol-related problems, and drinking motives. Findings indicated that students higher in social anxiety consumed less alcohol but experienced more negative consequences. Moreover, the relationship between social anxiety and negative consequences was mediated by coping and conformity drinking motives in addition to alcohol consumption. In the context of social anxiety, the current research demonstrates the importance of examining problematic drinking as distinct constructs: alcohol consumption and negative consequences. Findings are also discussed in terms of implications for interventions with socially anxious students. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
119.
Newsome Mary R.; Steinberg Joel L.; Scheibel Randall S.; Troyanskaya Maya; Chu Z.; Hanten Gerri; Lu Hanzhang; Lane Summer; Lin Xiaodi; Hunter Jill V.; Vasquez Carmen; Zientz Jennifer; Li Xiaoqi; Wilde Elisabeth A.; Levin Harvey S. 《Canadian Metallurgical Quarterly》2008,22(4):419
Eight adolescents (ages 13-18 years) who sustained traumatic brain injury (TBI) and eight gender- and age-matched typically developing (TD) adolescents underwent event-related functional MRI (fMRI) while performing a Sternberg letter recognition task. Encoding, maintenance, and retrieval were examined with memory loads of one or four items during imaging. Both groups performed above a 70% accuracy criterion and did not differ in performance. TD adolescents showed greater increase in frontal and parietal activation during high-load relative to low-load maintenance than the TBI group. The TBI patients showed greater increase in activation during high-load relative to low-load encoding and retrieval than the TD group. Results from this preliminary study suggest that the capability to differentially allocate neural resources according to memory load is disrupted by TBI for the maintenance subcomponent of working memory. The overrecruitment of frontal and extrafrontal regions during encoding and retrieval following TBI may represent a compensatory process. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
120.
本文使用2450MHz 连续微波照射 C_(57)BL 小鼠,观察生殖细胞染色体畸变。在功率密度约20、30及37mW/cm~2三种辐射强度下,睾丸周围的温度分別达37.5℃左右、38—39℃及40℃左右。最低辐射强度组动物的染色体畸变与对照组无差异。在其他两个辐射组,可见到细胞染色体畸变率增高,尤以高强度辐射组为明显。精原细胞的细胞染色体畸变率分别达12.16%及5.45%(对照组为1.26%);初级精母细胞第一次减数分裂的细胞染色体畸变率分别达9.31%及5.28%(对照组为2.56%)。畸变类型主要为染色单体断片、断裂,个别细胞的染色体或个別染色体出现粉碎化。 相似文献