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| 1 | 湿热对单向复合材料层合板Ⅱ型分层特性的影响显示文摘利用横向裂纹拉伸试验模型(TransverseCrackTension-tensionTest),在3种湿热环境(室温、85℃和85℃/95%RH)条件下,对2种单向碳纤维增强树脂基复合材料(T300/QY8911和HTA/6376)层合板的Ⅱ型分层特性进行了试验研究。结果表明湿热环境导致复合材料层间断裂韧性降低,引起Ⅱ型应变能释放率门槛值显著下降,裂纹扩展速率大大提高,温度的影响较湿度更为明显。利用电镜(SEM)对试样分层表面进行了检测,湿度对断面特征无明显的影响。 | 郑锡涛 李野 M.Gaedke R.Weber | 1998 | 航空学报1998，19，1： | 4 |
| 2 | The neuroprotective role of Wnt signaling in the retina显示文摘The canonical Wnt/β-catenin signaling pathway has been shown to play a major role during embryonic development and maturation of the central nervous system including the retina. It has a significant impact on retinal vessel formation and maturation, as well as on the establishment of synaptic structures and neuronal function in the central nervous system. Mutations in components of the Wnt/β-catenin signaling cascade may lead to severe retinal diseases, while dysregulation of Wnt signaling can contribute to disease progression. Apart from the angiogenic role of Wnt/β-catenin signaling, research in the last decades leads to the theory of a protective effect of Wnt/β-catenin signaling on damaged neurons. In this review, we focus on the neuroprotective properties of the Wnt/β-catenin pathway as well as its downstream signaling in the retina. | Stefan Kassumeh Gregor R.Weber Matthias Nobl Siegfried G.Priglinger Andreas Ohlmann | 2021 | Neural Regeneration Research2021，16，8： | 1 |
| 3 | The Economic Impacts of Agriculture-to-Urban Water Transfers on the Area of Origin:A Case Study of the Arkansas River Vallsy in Colorado显示文摘 | Charles W.Howe Jeffrey K.Lazo Kenneth R.Weber | | 0，，05： | 1 |
| 4 | 支气管肺泡灌洗在澄清HIV相关性肺疾病中的价值显示文摘肺是人类免疫缺陷病毒(HIV)感染的重要靶器官,HIV感染病人的下呼吸道细菌性感染(支气管炎和肺炎)是出现急性肺部症状最常见的原因.亚急性肺部病变,特别是当CD4-淋巴细胞值<200/μl),尽管有可逆的可能性,仍应考虑有肺孢子虫肺炎的可能.2/3的肺孢子虫肺炎的诊断通过自然痰液或诱导痰液检查已经可确诊,但是约1/3的病人需要经过支气管肺泡灌洗液(BAL)检查,才能明确诊断.除了诊断肺孢子虫肺炎外,支气管肺泡灌洗对于确定其它感染病原体(细菌包括分支植菌、诺卡尔菌属、红球菌属和新型隐球菌、Mameiffei青霉菌属和其它真菌感染)有重要价值.支气管肺泡灌洗液的细胞学检查还可提供区别是否存在药物性肺病、外源性-变态反应性肺泡炎症以及在HIV病人很少出现症状的CD8淋巴细胞肺泡炎鉴别诊断重要信息.肺部病变还可用内窥镜活检明确支气管内的Kaposi肉瘤,HIV相关性恶性淋巴瘤的肺部表现或其它肺部新生物. | J.Ersch R.Speich R.Weber M.Altwegg M.Hauser 郝连杰 | 2001 | 德国医学2001，18，5： | 0 |
| 5 | Are flexibility and muscle-strengthening activities associated with functional limitation?显示文摘This retrospective cohort study examined the relationship between self-reported participation in flexibility and muscular strengthening activities and the development of functional limitation(i.e.,once an individual has difficulty with or becomes unable to perform activities of daily living).Data were obtained from 1318 adults(mean age 49.59.7 years;98.7%Caucasian;14.9%female)enrolled in the Aerobics Center Longitudinal Study from 1979 to 2004 and free of functional limitation at baseline.Mail-back health surveys were used to prospectively determine incident functional limitation.Participation in muscle-strengthening and flexibility activities was assessed via self-report.Adjusted logistic regression analyses were used to determine the odds ratios(OR)and corresponding 95%confidence intervals for developing functional limitation during follow-up based on participation in general and specific categories of flexibility(‘Stretching’,‘Calisthenics’,or‘Exercise Class’)and musclestrengthening activities(‘Calisthenics’,‘Free Weights’,‘Weight Training Machines’,or‘Other’).Overall,42.6%of the sample reported incident functional limitation.After adjusting for potential confounders(e.g.,age,sex,cardiometabolic risk factors),those who reported performing muscle-strengthening activities in general(n=685)were at lower risk of developing functional limitation[OR=0.79(0.63–1.00)].In addition,the specific flexibility activities of stretching(n=491)and calisthenics(n=122)were associated with 24%and 38%decreased odds of incident functional limitation,respectively.General muscle-strengthening,stretching,and calisthenics activities are prospectively associated with decreased risk of incident functional limitation in generally healthy,middleaged and older adults.Thus,both public health and rehabilitation programs should highlight the importance of flexibility and muscle-strengthening activities during adulthood to help preserve functional capacity. | Craig E.Pfeifer Leanna M.Ross Samantha R.Weber Xuemei Sui Steven N.Blair | 2022 | Sports Medicine and Health Science2022，4，2： | 0 |
| 6 | 一个信息系统深层结构的理论显示文摘信息系统是模拟真实世界系统的,而信息系统的深层结构则包括能表征这一真实系统的各种属性。该文阐述我们所开发的信息系统深层结构属性的三个模型。第一是表示模型,它提出一套结构来保证将被评估的信息系统语法在本体论方面的完整性。第二为状态跟踪模型,它提出了一个信息系统要能很好地跟踪其所反映的真实世界系统所必须达到的几点要求。第三是一个好的分解模型,它给出了一个信息系统如果能很好地被分解,它所必须满足的一组条件。通过这三种模型就能较容易地评价用于信息系统分析、设计和实施的语法以及已实施了的信息系统的各个详细说明书。 | Y.Wand R.Weber 罗金辉 | 1991 | 计算机工程与应用1991，27，5： | 0 |
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