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11.
目的观测固定双上肢并悬挂家兔的血气变化及膈肌的肌电变化,探讨体位性窒息死亡的发生机制。方法建立家兔体位性窒息死模型,在实验前、后分别抽取家兔耳缘动脉和左心室血2m l进行血气分析,并监测实验过程中家兔膈肌肌电图(EMGd i)的变化。结果实验组与对照组均有缺氧、二氧化碳储留以及氧饱和度下降,但是实验组的二氧化碳储留比对照组低,氧饱和度比对照组高,缺氧情况比对照组低。在连续记录的EMGd i中,早期EMGd i较晚期EMGd i的高频与低频(H/L)比值显著降低,超过20%。结论固定双上肢并悬挂家兔死亡与膈肌疲劳导致缺氧窒息有关  相似文献   
12.
Previous research shows that sleep deprivation (SD) produces cognitive impairment similar to that caused by alcohol intoxication. Individual studies suggest that SD also causes deficits in motor skills that could be mistaken for intoxication. Consequently, SD often is used as a defense when an impaired driver is charged with driving while intoxicated. Twenty-nine adult subjects participated in two test sessions each, one after a full night's rest and the other after wakefulness of at least 24 h. Subjects consumed prescribed amounts of alcohol during each session. Law enforcement officers conducted field sobriety tests identical to those with which a driver would be assessed at roadside. Researchers also measured clinical responses of visual function and vital signs. The presence and number of validated impairment clues increase with increasing blood alcohol concentration but not with SD. Thus, SD does not affect motor skills in a manner that would lead an officer to conclude that the suspect is intoxicated, unless intoxication also is present.  相似文献   
13.
Daily cognitive fatigue is widespread, yet we are still learning about its influence on political behavior. Existing research suggests fatigue will reduce consumption of politics at the margin. Moreover, when fatigued individuals do engage with political material, they should be more likely to choose content and decision rules that require minimal effort. We find mixed empirical evidence for these claims. In observational data, we find a negative relationship between fatigue and engagement, on average, but the coefficients are typically small and statistically insignificant and we find substantial variation across different measures of fatigue. In three experiments, we find mixed evidence that manipulated fatigue reduces the demand for political content over sports and other non-political entertainment. In a fourth experiment, we find no evidence that manipulated fatigue shapes heuristic versus systematic processing. We discuss the limitations of our study, its relationship to existing work, and avenues for future research.  相似文献   
14.
以北京市交通警察疲劳度和工作满意度问卷调查数据为基础,将交警执行重大安保任务时的疲劳度分为生理、心理、行为三个方面,采用统计检验方法,分析了不同性别、年龄、学历、婚姻状况、从警时间、职务等个人属性的交警疲劳度,以及疲劳度与工作满意度之间的关系。  相似文献   
15.
员工的过劳问题在我国企业中日益凸显,而日本对于过劳问题的研究已经相对成熟。为了掌握制造业员工的蓄积性疲劳状况,有效预防我国企业员工过劳的发生,保障劳动者的身心健康,通过使用日本最新的蓄积性疲劳调查量表(CFSI),对江苏无锡某制造企业的员工进行蓄积性疲劳状况调查,旨在为我国防止过劳的研究提供实证依据,同时探索CFSI量表在我国的适用性,为今后开发适合我国国情的疲劳度测量量表做参考。  相似文献   
16.
运动性疲劳产生原理与恢复方法初探   总被引:2,自引:0,他引:2  
本文就运动性疲劳产生的原理生物化学机制进行了分析 ,并对运动后出现的不同程度的疲劳反应 ,提出了几种主要的恢复手段与方法。即 :心理消除、理疗消除、保证休息和睡眠、加强膳食营养、积极性休息  相似文献   
17.
For more than three decades the National Crime Victimization Survey (NCVS)—and its predecessor the National Crime Survey (NCS)—have been used to calculate estimates of nonfatal crime in the United States. Though the survey has contributed much to our understanding of criminal victimization, some aspects of the survey’s methodology continue to be analyzed (e.g., repeat victimizations, proxy interviews, and bounding). Surprisingly, one important aspect of NCVS methodology has escaped this scrutiny: respondent fatigue. A potential source of nonsampling error, fatigue bias is thought to manifest as respondents become “test wise” after repeated exposure to NCVS survey instruments. Using a special longitudinal NCVS data file, we revisit the presence and influence of respondent fatigue in the NCVS. Specifically, we test the theory that respondents exposed to longer interviews during their first interview are more likely to refuse to participate in the survey 6 months later. Contrary to expectations based on the literature, results show that prior reporting of victimization and exposure to a longer interview is not a significant predictor of a noninterview during the following time-in-sample once relevant individual characteristics are accounted for. Findings do demonstrate significant effects of survey mode and several respondent characteristics on subsequent survey non-participation.  相似文献   
18.
目的 评价参芪扶正注射液联合化学疗法治疗晚期胃癌的临床疗效。方法 将50例晚期胃癌患者按照随机数字表法分为观察组和对照组,每组25例。对照组予以化学治疗,观察组在对照组治疗方案基础上加用参芪扶正注射液进行联合治疗。比较两组患者临床疗效,治疗前后血清糖类抗原125(carbohydrate antigen 125, CA125)、癌胚抗原(carcinoma embryo antigen, CEA)水平,中医证候积分,卡氏功能状态(Karnofsky performance status, KPS)评分,癌因性疲乏(cancer related fatigue, CRF)评分,生活质量核心量表- 30(quality of life questionnare- core 30, QLQ- C30)评分以及不良反应发生情况。结果 两组患者近期肿瘤疗效比较,差异无统计学意义(P>0.05)。与治疗前比较,两组患者治疗后血清CA125、CEA水平明显下降(P<0.05),且观察组患者治疗后血清CA125、CEA水平降低程度显著大于对照组(P<0.05)。与治疗前比较,两组患者治疗后中医证候积分显著下降(P<0.05),KPS评分显著升高(P<0.05);与对照组比较,观察组中医证候积分、KPS评分改善更显著(P<0.05)。与治疗前比较,观察组患者治疗后CRF总分及行为、躯体、认知评分均显著降低(P<0.05),而对照组患者治疗后躯体评分显著增加(P<0.05)。两组基于QLQ- C30评分的疗效比较,差异有统计学意义(P<0.05),观察组疗效显著优于对照组。与对照组比较,观察组患者血小板减少、血红蛋白下降、白细胞减少、恶心呕吐、乏力的不良反应发生率均显著降低,差异有统计学意义(P<0.05)。结论 参芪扶正注射液联合化学治疗能够显著提高晚期胃癌患者的疗效,降低化学治疗药物的不良反应,改善患者生存质量。  相似文献   
19.
目的 观察推拿走罐疗法对慢性疲劳综合征(chronic fatigue syndrome,CFS)气虚型的治疗作用.方法 将60例气虚型CFS患者随机分为推拿走罐治疗组和口服补中益气丸对照组各30例,观察两组临床疗效,及疲劳、疼痛和主要伴随症状的改善情况.结果 治疗组和对照组总有效率分别为93.3%、73.3%,两组总...  相似文献   
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