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关键词： 父母教养方式   外化问题行为   流动青少年   冲动性  

摘要： 对870名流动青少年进行了父母教养方式、外化问题行为和冲动性的问卷调查,以考察父母教养方式与流动青少年外化问题行为的关系及冲动性的中介作用。结果表明:关怀教养负向预测外化问题行为;过度保护和冷漠拒绝教养正向预测外化问题行为;冲动性在关怀、过度保护和冷漠拒绝教养与外化问题行为之间有中介作用;冲动性在过度保护教养与外化问题行为之间有调节作用,过度保护教养对外化问题行为的不良影响在高冲动水平个体上表现显著而在低冲动水平个体上表现不显著。

关键词： FIDIC   争议解决   演变   分析  

摘要： 概述FIDIC合同争议解决方式的发展和演变,分别讨论1999版和2017版FIDIC合同条件的友好解决和争议裁决和避免条款,对争议避免/裁决委员会在2017年版FIDIC合同中的作用进行分析,并将其与1999年版的争议裁决委员会进行比较。

关键词： 融券卖空标的   违规   审计师   分析师  

摘要： 从融券卖空作为金融创新的市场交易机制入手,探究其抑制标的公司违规行为的潜在治理效应。基于截至2016年的融券卖空标的名单,采用基于倾向得分匹配的多时点双重差分模型,实证研究发现,融券卖空机制能够抑制标的上市公司的违规行为。采用中介效应模型的检验发现,外部市场的违规监督力量——审计师和分析师,均能够在融券卖空机制抑制标的上市公司违规行为方面发挥中介作用。进一步区分违规行为的类别和程度发现,融券卖空机制对标的公司的信息披露和经营类违规,以及对标的公司不同程度的违规,均具备显著抑制作用。研究结论丰富了融券卖空机制经济后果的理论,也有助于探寻上市公司违规防范的新有效途径,为监管部门进一步加强上市公司违规行为治理与监督提供了新思路。

关键词： 临床免疫检验质量   检验结果   可靠性   准确性   诊断   治疗  

摘要： 目的分析临床免疫检验质量控制对检验结果可靠性和准确性的作用。方法择取在医院行住院治疗且需行免疫检验的患者130例作为研究对象,时间在2018年1月—2020年1月。按照盲选法分为两组,对照组与观察组各有65例。采取常规质量控制的患者,作为对照组;在常规质量控制之上,加强临床免疫检验质量控制干预的患者,作为观察组。比较检验结果。结果观察组患者免疫检验质量问题发生率、免疫检验结果准确率相较于对照组,差异具有统计学意义(P<0.05)。结论加强临床免疫检验质量控制能够提高检验结果的准确性和可靠性,降低检验质量问题的发生可能,为诊断和治疗提供参考。

关键词： 低离子聚凝胺   盐水法   交叉配血试验   输血检验   效果对比  

摘要： 总结低离子聚凝胺在交叉配血试验中应用于输血检验的应用优势。方法:收集2020年1月至2021年1月我院输血科处理的260例患者的输血检验项目进行研究。260例输血检验样本分别采用两种不同处理方式。基于盐水介质、低离子聚凝胺两种方式的输血检验阳性率与检测效果指标进行对比。结果:低离子聚凝胺的阳性检出率明显高于盐水法,P<0.05。盐水法检验需要采取显微镜观察,低离子聚凝胺可直接通过肉眼观察判断。低离子聚凝胺检测技术的灵敏度、稳定性、准确性、耗时指标均显著优于盐水试验技术,数据之间数据差异较大,P<0.05。结论:基于低离子聚凝胺的交叉配血试验方式可以有效应用于输血检验,整体检验结果可靠度较高,可以实现对疾病的准确判断,值得推广。

关键词： 肝功能   生化检验   肝炎肝硬化  

摘要： 探讨分析肝功能生化检验应用于肝炎肝硬化患者中的作用及其意义。方法:本次研究的对象为2018年1月至2020年12月在本院接受治疗的肝炎肝硬化患者33例和同期进行体检的健康人员33例,其中本院接受治疗的肝炎肝硬化患者33例列为观察组;其中抽同期进行体检的健康人员33例列为对照组;所有患者必须进行肝功能生化指标检测,对比分析两组患者的各项指标主要从白蛋白、总胆汁酸、总胆固醇与胆碱酯酶等指标情况进行分析。结果:观察组患者的白蛋白、总胆固醇以及胆碱酯酶指标明显低于对照组,两组对比差异具有统计学意义(P <0.05);观察组患者的总胆汁酸指标明显高于对照组,两组对比差异具有统计学意义(P <0.05);统计观察组患者的肝功能Child-Pugh分级情况下的阳性检出率,Child-Pugh-A的胆碱酯酶的阳性检出率为100%;Child-Pugh-B胆碱酯酶、白蛋白和总胆固醇的阳性检出率为100%;Child-Pugh-C的总胆固醇的阳性检出率为100%。结论:肝功能生化指标检验的依据是肝脏组织病变时所引起的各种合成和代谢的异常,对于肝脏受损方面具有良好诊断依据,也给临床医师诊断肝炎肝硬化提供有效参考,具有很高的临床价值,值得推荐。

关键词： 技能竞赛   医学检验技术   教学改革  

摘要： 医学检验技能竞赛是促进医学检验技术专业学生成才的平台,同时也是检验科教学质量、评价专业教育水平的手段。实践教学是医学检验技术教学的重要内容,通过整合资源、规范教学、完善考核、健全制度等措施,将技能竞赛融合于实践教学活动中,培养学生自主学习和动手操作能力,提高实践教学质量,起到以赛促学、以赛促教、以赛促改、赛教结合、重在教改的作用,促进医学检验技术实践教学的改革。

关键词： Packaged foods   Markers of ultra-processing   Additives   Ultra-Processed ingredients   DIET   CONSUMPTION   HEALTHFUL   ADDITIVES   NUTRITION   OBESITY  

摘要： Ultra-processed foods (UPFs) are characterized by the presence of markers of ultra-processing (MUP), either additives (A-MUP) or non-additive ingredients (NA-MUP). The present study aims to characterize the MUP profile of approximately 22,000 UPFs, representative of assortments in French supermarkets. UPFs were ranked according to Siga classification within five UPF technological groups, from C01 to C3, depending on the nature and number of MUPs (MUP1 and MUP2), presence of risk-associated additives, and contents of salt, sugar and/or fat. Then, UPFs were categorized within 10 food categories. The results showed that UPFs contain more NAMUPs than A-MUPs, on average 1.3 more by UPF. The main MUPs are NA-MUPs, i.e., refined oils (52.5 % of UPFs), extracts and natural aromas (42.7 %), synthetic aromas (26.5 %), glucose syrup (20.0 %), native starches (19.1 %), and dextrose (16.2 %). The NA-MUP/UPF and A-MUP/UPF ratios were not correlated in the 10 food categories. Among UPFs, 19 % contained only one MUP, and 31 % contained more than five MUPs. In conclusion, additives are not a sufficient marker of ultra-processing. It is proposed that NA-MUPs in UPFs should be taken into greater consideration and that foods be scored with indices based on the degree of processing, not compositional scores, which fail to filter MUPs.

关键词： Dynamical systems   Nonlinear oscillators   Conservative systems   Elliptic integrals   Jacobian elliptic functions  

摘要： Closed-form exact solutions for periodic motions of a nonlinear oscillator, which contains a quadratic mixed-parity restoring force, are derived analytically. This oscillator is characterised by two real parameters, which are the coefficients of the linear and the quadratic terms, and has single-well potential. All possible combinations of positive and negative values of these coefficients providing periodic motions are considered, and two families of exact solutions are obtained in terms of Jacobi elliptic functions. The periods are given in terms of the complete elliptic integral of the first kind, the behaviour of these periods as a function of the initial amplitude is analysed, and the exact solutions for certain values of these parameters are plotted.

关键词： Multiplayer social network games   Social interactions   Augmentation and displacement effects   Co-player   Loneliness   INTERNET PARADOX   ONLINE   LONELINESS   WARCRAFT   WORLD   COMMUNICATION   COMPETITION   ADDICTION   CHANNELS   MMORPGS  

摘要： The academic debate on whether gameplay has a positive or negative effect on players' psychosocial well-being has yet to cease. To resolve this debate, this study focuses on multiplayer social network games (MSNGs), the affordances of which may lead to the coexistence of augmentation and displacement effects. To unpack the conditions under which gameplay has a positive or negative relationship with psychological well-being, this study distinguishes between co-player interaction modes (in-game social interactions vs. social media interactions) and between co-players' identity types (offline friends/acquaintances vs. guild members). An online survey was conducted with 300 gamers in China. The results revealed that more in-game interaction with co-players was positively associated with players' loneliness, whereas more social media interaction with co-players was negatively related to players' loneliness, regardless of the co-players' identities. However, players who played with offline friends/acquaintances did engage in more social interactions than those who played with guild members, especially social media interactions. Moreover, the effect of playing with friends/acquaintances or guild members on players' loneliness was fully mediated by in-game social interactions and social media interactions. That is, the psychosocial influence of gameplay heavily depends on the exact social interactions that players are involved in rather than on general time spent in games, and the augmentation and displacement effects possibly coincide within one game.