腔内激光疗法联合高位结扎治疗大隐静脉曲张疗效分析

比较大隐静脉腔内激光疗法（EVLT）联合高位结扎术与传统术式的临床疗效。选取大连医科大学附属第二医院2008年2月~2014年2月收治的大隐静脉曲张患者180例,采用EVLT的90例患者为激光组,采用传统高位结扎剥脱治疗的90例患者为对照组。激光组患者手术时间,切口数目及出血量优于对照组（P〈0.05）;两组总体VCSS计分差值、CEAP分布改变无差异,但伴静脉性溃疡病例,激光组VCSS计分差值优于传统组（P〈0.05）;两组术后并发症无差异。EVLT联合高位结扎术综合疗效明显优于传统术式,伴有静脉性溃疡的病例尤其明显。     

Maspin在腮腺癌中的表达及其与微血管密度的关系

为检测乳腺丝氨酸蛋白酶抑制剂（maspin）在腮腺癌中的表达,探讨其与腮腺癌I洛床病理特征及微血管密度（MVD）的关系。应用免疫组化技术分别对50例腮腺癌组织及30例瘤旁正常组织行maspin蛋白半定量测定,并对前者行CD34蛋白半定量测定,与各临床病理指标进行统计学分析。发现maspin、MVD在腮腺癌组织中表达与淋巴转移、术后复发、分化程度显著相关,后者的表达还与腮腺癌的临床分期密切相关。因此,maspin与MVD的联合检测,在判断恶性程度及顸后等方面具有重要的临床意义。     

SC-IAT范式下大学生感恩的内隐性

目的：研究探讨了单类内隐联想测验（SC-IAT）测量大学生感恩的可行性,并分析内隐感恩与外显感恩的关系。方法：采用inquisit3.0.2.0编制SC-IAT感恩测量程序,测量了大学生的内隐感恩;采用青少年感恩量表（AGS）测量了大学生的外显感恩,并运用相关技术分析两者之间的关系。结果：采用SC-IAT测量大学生感恩的内隐效应显著,内隐感恩不存在性别、生源地和独生与否等人口统计学指标上的显著差异,大学生的内隐感恩与外显感恩之间相关不显著。结论：（1）大学生整体上存在着积极的内隐感恩;（2）内隐感恩与外显感恩相互分离,是两个不同的建构。     

Social cognitive correlates of physical activity among single mothers with young children

ObjectivesSingle mothers experience negative health consequences that might be reduced through participation in physical activity, yet little is known about physical activity correlates among this population. This study examined social cognitive theory (SCT) correlates of physical activity among single mothers with young children.DesignCross-sectional.MethodSingle mothers (N = 94) with at least one child less than 5 years old completed SCT questionnaires, wore an accelerometer for one week, and then completed the Godin Leisure Time Exercise questionnaire. Physical activity scores were standardized and averaged to yield a composite physical activity score.ResultsRegression analysis indicated that self-efficacy was a direct predictor of composite physical activity; in the final model planning was the only statistically significant predictor of composite physical activity scores.ConclusionsPlanning and self-efficacy might be important factors to include when designing physical activity interventions for single mothers.     

消费者不道德行为与员工情绪衰竭关系的调节性中介模型

大量研究业已揭示,消费者针对员工的不道德行为是导致员工情绪衰竭的重要因素,但是对于消费者不针对员工的不道德行为（consumer unethical behavior that are not employee directed,CUB）是否会影响员工的情绪衰竭,研究还较少涉及。基于道义伦理学,本研究提出了一个调节性中介模型,以分析CUB与员工情绪衰竭的关系。该模型假定,CUB与员工情绪衰竭之间的关系以情绪抑制为中介,并且受到员工道德认同的调节。对198名销售人员的研究发现,即使控制了消费者针对员工的不道德行为,CUB仍影响着员工的情绪衰竭;CUB与员工情绪衰竭的关系受到道德认同的调节,道德认同较高的员工表现出较高程度的情绪抑制与情绪衰竭。研究支持了假设的调节性中介模型,情绪抑制在CUB和情绪衰竭之间发挥着部分中介作用,不仅如此,这一中介作用还受到道德认同的调节,情绪抑制在CUB和情绪衰竭之间的间接效应主要表现在道德认同较高的员工中。最后探讨了研究发现的理论意义、不足及未来发展方向。     

11岁和15岁儿童学习动机和数学素养的关系

选取2133名11岁和15岁学生,采用PISA测试为数学素养指标,探讨学生学习动机的不同维度与数学素养之间的关系。结果发现：（1）11岁学生的内部动机明显地强于15岁学生。（2）11岁学生内部动机中的挑战性动机与数学素养间的相关程度明显弱于15岁学生。（3）11岁高数学素养的学生组,数学素养和内、外学习动机有明显的相关,低数学素养学生组两者则不相关;对于15岁低数学素养的学生组,数学素养得分和内、外部学习动机有明显的相关,高数学素养学生组两者则不相关。     

The emotional cost of charitable donations

Donations in support of a charitable cause can create a conflict between moral intuitions (e.g., fulfilling moral obligations and helping as many individuals in need as possible) and the cost entailed by following one's moral intuitions (e.g., spending money). The present paper investigates this conflict by putting people in a situation in which they must choose whether to help three women by giving more money or help one woman by giving less. In addition, the paper uses the attraction effect paradigm to counteract the single victim effect and reduce the conflict. Experiment 1 demonstrates that in a two-alternative context the majority of participants choose to help one woman by giving €150 instead of helping three women by giving €450. Experiment 2 replicates this finding and highlights the role of emotion regulation strategies in the management of the emotional conflict arising in the two-alternative condition. In both studies, the introduction of a third, dominated alternative reduces the conflict and makes it easier to choose the programme asking for a higher donation and helping three women. Implications for charitable donations and the role of the conflict between moral intuitions and economic costs are discussed.     

Highly fluorescent silver nanofluids with ferroelectric molecules

Highly fluorescent silver nanoparticles (Ag-NPs), soluble in a ferroelectric host of polymer molecules such as poly(vinylidene fluoride) (PVF₂), have been created in the form of nanofluids. The content of Ag-NPs (flocculates) is varied in steps 0.1–0.2 wt% up to a value of 5.0 wt% in tailoring a broad green emission band over 520–620 nm out of a hybrid percolation Ag–PVF₂ composite. A maximum intensity arises in this band at as small a percolation threshold as ～0.1 wt% Ag-NPs. It contains three distinct bands of peak values 541, 565, and 582 nm in an Ag-NPs tunable response of the localized surface plasmons. The emission-dependent anti-Stokes excitation spectrum contains a similar group of three bands 348, 401, and 421 nm. For Ag-contents above 0.1 wt%, interdependent intensities in the emission and excitation bands drop rapidly by as much as five times, conferring a metal–polymer percolation network. The results open wide applications for biological labels and light emitters using such nanofluids.     

Thermodynamic consistency and fast dynamics in phase-field crystal modeling

A general formulation is presented to derive the equation of motion and demonstrate thermodynamic consistency for several classes of phase-field (PF) and PF crystal (PFC) models. It can be applied to models with a conserved and non-conserved phase-field variable, describing either locally uniform or periodic stable states, and containing slow as well as fast thermodynamic variables. The approach is based on an entropy functional formalism previously developed in the context of PF models for locally uniform states [P. Galenko and D. Jou, Phys. Rev. E 71 (2005) p.046125] and thus allows to extend several properties of the latter to PF models for periodic states, i.e., PFC models.     

药物性肝损伤的临床处置策略

本文讨论了药物性肝损伤治疗的相关临床问题,概括出以下几点：（1）可预知性与不可预知性肝毒性药物的临床处置方法,强调治疗的关键是停止肝毒性药物的使用以及停药的具体指征;（2）支持治疗不应被忽视,以及如何实施;（3）解毒药物的概念和种类;（4）保肝药物应用中存在的问题,主要是不按药理机理选择和多重用药,介绍了保肝药的不同机理和代表药物,阐述不要多种保肝药联合的基本原则;（5）根据肝损伤临床类型选择不同的治疗方案,肝细胞损伤以保肝药物治疗为主,胆汁淤积以利胆治疗为主,对重症肝损伤者应人工肝支持治疗,必要时进行肝移植.