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关键词： 生产检测检验   矿山安全生产   作用  

摘要： 现如今各个行业对安全生产的理念越来越受重视,社会对矿山安全生产也尤为关注,为了施工工作顺利进行,生产检测检验已广泛应用于矿山作业中,这给矿山作业的监管工作提供了技术支持,从而给矿山安全生产提供了保障。本文就此全面分析了生产检测检验在矿山安全生产中的作用。

关键词： 企业管理者   有限理性   投资预期  

摘要： 我国企业管理者有限理性行为主要表现为过度自信、短视偏差和从众行为,情绪感染理论、市场竞争机制、企业内部奖惩机制等角度都揭示各种管理者有限理性行为对企业投资预期的作用机制。通过构建面板数据回归模型,利用我国A股主板企业的数据进行实证检验。研究发现:我国企业管理者的有限理性行为对企业投资预期存在显著的作用效应;管理者过度自信和从众行为显著正向作用于企业投资预期,短视偏差对企业投资预期存在显著负向作用效应;管理者过度自信对企业投资预期的作用力度最大,短视偏差次之,而从众行为最弱。

关键词： 合同成立   招标投标   投标文件   招标文件   投标人   招标人   约束力   诉讼案件  

摘要： 一、不同的看法及法律意义由于招标投标的目的是订立合同,通过招标投标订立的合同什么时间成立就成为了非常重要的问题。这一时间决定了招标文件、投标文件中的内容何时开始对招标人、投标人产生约束力。在招标投标实务中,大量纠纷都与对此不同的认识有关,即使在法院的诉讼案件中,对此的不同认识仍然产生了不同的判决。

关键词： 化工分析   化工检验   关键功能  

摘要： 近年来,我国化学工程的发展趋势与社会发展的趋势相吻合,并得到了很大的改善。化工测试和分析过程中,不是能够掌握操作技术便可以将工作做得很好,而是需要相关人员在不同类型的化工检验过程中对检测方法进行灵活调整和应用,更好地满足和分析各种不同产品。这个需要检验人员的分析检测能力满足多种检验方式和方法,但是对化工行业经过一定的了解之后还是会发现在化工分析或实践过程中存在许多问题,本文将对我国现阶段化工生产中的化工分析与化工检验进行细致的分析,找出其中存在的问题并提出合理的解决措施,使我国化工分析与化工检验得到较好的改善。

关键词： Resilience   Trauma-load   Posttraumatic stress disorder  

摘要： Resilience has been of particular interest to researchers and clinicians focused on response to trauma. In the current study, we employed a novel, discrepancy-based psychiatric resilience (DBPR) analytic approach to operationalizing resilience and examined its relation to potentially protective psychosocial factors in a nationally representative sample of U.S. veterans (N = 2704). Cumulative lifetime trauma burden, severity of PTSD symptoms, and protective factors such as personality characteristics (e.g., conscientiousness), protective psychosocial characteristics (e.g., purpose in life), and social connectedness (e.g., secure attachment style) were assessed. PTSD Checklist (PCL) scores were regressed onto cumulative trauma burden for the entire sample and a predicted PCL score was generated for each veteran. Resilience was operationalized as a lower actual relative to predicted PCL score. Results of a relative importance analysis revealed that somatic symptoms (22.5% relative variance explained [RVE]), emotional stability (22.4% RVE), and a secure attachment style (14.1%) explained the majority of the variance in resilience scores. These results demonstrate the utility of a DBPR approach to operationalizing resilience in U.S. military veterans. They also identify potentially modifiable psychosocial factors that may be bolstered in prevention and treatment efforts designed to mitigate the negative effects of trauma and promote resilience in this population.

关键词： Travel satisfaction   Machine learning   Nonlinear effect   Interactions   Data-driven approaches  

摘要： Improving passengers' satisfaction is crucial for airline industry and requires in-depth understandings regarding the complex effects of various factors. This study investigates the importance, complex nonlinear effects and interaction effects of various factors (including passenger characteristics and service attributes) on airline travel satisfaction in data-driven manners leveraging machine-learning (ML) approaches. The results show that ML algorithms such as Random Forest have superiority in modeling airline travel satisfaction as compared to conventional logistic regressions. The quantitative importance of various factors is estimated and compared to reveal key determinants of passengers' satisfaction using permutation-based importance and accumulated local effect analysis. More importantly, results suggest that the main effects of service attributes present piecewise nonlinear patterns. There are piecewise interaction effects between passenger characteristics and service attributes and among service attributes on airline travel satisfaction. Practical implications on efficient and cost-effective measures of promoting satisfaction are derived and discussed based on the findings.

关键词： Reward   Novelty seeking   Persistence   Empirical classification  

摘要： Reward response patterns may contribute to risk and maintenance of eating disorders (EDs), and there may be clinically meaningful heterogeneity in behavioral responses to different actual and anticipated rewards across ED diagnoses. We used an empirical approach to classify individuals with EDs based on self-reported tendencies for responding to reward-related stimuli. Latent profile analysis was conducted in a transdiagnostic ED sample (N = 104) using Temperament and Character Inventory (Cloninger et al., 1993) subscales to categorize participants on reward responses of behavioral activation towards immediate, hedonic rewards (Novelty Seeking subscale), persistence towards long-term rewards (Persistence subscale), and maintenance by social rewards (Reward Dependence subscale) rewards. Two profiles were identified: (1) Behavioral Activation group (elevated Novelty Seeking;n = 62);and (b) Behavioral Persistence group (elevated Persistence;n = 42). Generalized linear models comparing profiles showed that frequency of these reward response profiles did not differ in probable AN, BN, or OSFED groups;however, individuals with probable BED more often demonstrated the Behavioral Activation profile (p = .041). These profiles exhibited comparable ED severity, but different presentations. Across probable ED diagnoses, the Behavioral Activation group reported greater binge eating (p = .006, d = 0.32) and had higher BMIs (p = .001, d = 0.57);the Behavioral Persistence group endorsed greater driven exercise (p = .042, d = 0.33). Categorization by activation to novel, immediate rewards versus persistence towards long-term rewards was associated with different symptoms across diagnoses, potentially supporting the role of specific reward response profiles in ED phenomenology.

关键词： 凝血检验指标   弥漫性血管内凝血   诊断   作用  

摘要： 分析弥漫性血管内凝血(DIC)诊断中,使用凝血检验指标的意义。方法:研究时间:2020.01.02/2020.11.05(开始/结束);研究对象与分组:将此期间来我院进行弥漫性血管内凝血诊疗的患者作为主要观察对象,共计46例,纳入DIC组。并选取同时期来我院进行健康体检人群中的46例,纳入健康组。分别对其进行弥漫性血管内凝血诊断相关检查,并对其各项检查指标进行对比。结果:比较两组人员的比较凝血酶原时间(PT)、凝血酶时间(TT)、内源性凝血状态(APTT)、纤维蛋白原含量(FIB)、国际标准化比值(INR)等指标情况。比较可知,与健康组人员相比,DIC组患者的凝血时间更长,纤维蛋白含量更低,差异显著(P<0.05, t=19.925/16.310/14.856/32.493/17.962)。结论:通过对患者的凝血指标进行检验,能够较为准确的了解患者的病情发展情况,进而为患者提供更为科学合理地治疗干预方案,值得在临床中推广。

关键词： 免疫检验   产前检查   孕妇  

摘要： 研究在产前检查中进行免疫检验的作用。方法:选取2019年8月~2020年9月在我院进行产检的孕妇90例,依据奇数偶数分组法 将患者分成观察组和对照组各45例。对照组采取进行常规产前检查 观察组在常规基础上进行免疫检验 比较两组病毒阳性检出率。结果:观察组病毒阳性检出率为8.89%低于对照组的28.89%,P<0 05。结论:在孕妇的产前检查中 进行免疫检验 可及时发现某些免疫缺陷和病毒感染等情况,有助于及时进行有关临床干预,确保母婴健康。

关键词： 疾控中心   工作质量   质量控制管理   临床研究   微生物检验室  

摘要： 观察疾控中心微生物检验工作质量中质量控制管理的价值。方法:2019年2月-2021年2月为研究时间,80例微生物检验工作为样本,有40例行质量控制管理,被归纳为管理组,有40例行常规微生物检验室管理,被归为参考组,观察疾控中心微生物检验室工作质量。结果:管理组有2.50%的检验不合格事件,参考组有17.50%的检验不合格事件,P<0.05。微生物检验室工作质量分值在管理组比参考组高,P<0.05。结论:经质量控制管理后,可规范微生物检验流程,使疾控中心微生物检验室检验不合格事件减少,保持高工作质量。