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探讨全麻喉罩复合硬膜外阻滞麻醉对腹腔镜胆囊切除患者眼内压(IOP)的影响,60例患者行腹腔镜胆囊切除患者根据麻醉方式的不同随机分为全麻喉罩复合硬膜外阻滞组(A 组)与气管插管全麻组(B 组),每组各30例。记录麻醉前(T0)、气管插管(置入喉罩)前(T1)、气管插管(置入喉罩)后即刻(T2)、CO2气腹后10min(T3)、术毕患者清醒拔除气管导管(喉罩)前(T4)时的 IOP 。结果显示:喉罩全麻复合硬膜外阻滞用于腹腔镜胆囊切除,与单纯气管插管全麻比较,可有效降低患者在诱导插管、CO2气腹与患者清醒吸痰、拔管所引起的 IOP 升高反应(P<0.05)。 相似文献
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Are Decisions Made by Group Representatives More Risk Averse? The Effect of Sense of Responsibility 下载免费PDF全文
We tested the hypothesis that a sense of responsibility drives group representatives' decisions to be more risk averse compared with decisions made by individuals. The hypothesis was supported when the monetary considerations (i.e., payoff inequality and the magnitude effect) were controlled for in the potential gain domain as well as in the potential loss domain. Evidence showed that this is because the group representatives were concerned about how they would view themselves (e.g., guilt and self‐blame) and also how they would be viewed by others (i.e., to avoid being blamed and looked down upon by others). This study provided new insights into understanding group representatives' decision making under risk. Copyright © 2017 John Wiley & Sons, Ltd. 相似文献
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Previous research has suggested that problematic Internet use (PIU) is associated with impulse control disorder. Although researchers have suggested that impulsivity is a risk factor for PIU, the literature lacks longitudinal evidence on the relationship between impulsivity and PIU. We aimed to use a cross‐lagged analytic framework to identify temporal order effects and hypothesised that impulsivity was the precedent factor for PIU. In a panel sample of college students (N = 367), trait impulsivity and PIU were measured in the spring of freshman year and in their junior year. The measures included a self‐developed PIU Scale and the revised Impulsiveness Scale based on Barratt's concept. We found that “non‐planning impulsivity” was not associated with PIU. The “motor impulsivity” subfactor was thus adopted in the cross‐lagged model. The results suggest that motor impulsivity and PIU were stable across time. Motor impulsivity at Time 1 positively predicted PIU at Time 2, but PIU at Time 1 did not predict motor impulsivity at Time 2. A further investigation using gender as a moderator found a gender difference in the temporal relationship. Because motor impulsivity is a risk factor for PIU, potential prevention strategies based on this result are suggested. 相似文献
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R. Kobold W. W. Kuang H. Wang W. Hornfeck M. Kolbe 《Philosophical Magazine Letters》2017,97(6):249-256
Glass-forming Ni50Zr50 intermetallic compound is containerless undercooled and solidified using electrostatic levitation. Large undercoolings up to ?T = 300 K are achieved. The dendrite growth velocity of the congruently melting alloy is measured as a function of undercooling using a high-speed camera technique. The experimental data is analysed within a sharp interface theory. It is found that the driving force of crystallisation is controlling the growth kinetics at ?T < 250 K but at larger undercoolings the growth kinetics is progressively controlled by atomic diffusion. This leads to a slowing down of the growth velocity. The maximum velocity and the temperature at which the maximum occurs (Tmax) are inferred from the dendrite growth velocity – undercooling relation. The relation of the temperature Tmax and the glass temperature fits into a general classification scheme for glass-forming systems. The kinetic and thermal undercooling terms are calculated within dendrite growth theory as a function of the total undercooling. At ?T > 126 K, the kinetic undercooling dominates and increases rapidly with the undercooling ?T. The maximum prefactor of the kinetic undercooling is plotted vs. the reciprocal temperature. Its temperature dependence is discussed. 相似文献
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回顾和综述自身免疫性糖尿病胰岛炎核素显像技术的产生、发展过程和最新研究进展.分析系统论方法主要基本原则在该技术研究进展中的指导性作用.揭示在医学科学研究中自觉、主动地运用辨证思维方法和系统论科学方法,可以拓展研究的新思路,为深入认识、改进和创造先进技术提供有效手段、为制定研究的最佳方案及优化组合提供新途径,对促进和指导医学研究发展有极其重要的意义. 相似文献
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技术发展背景下技术使用者对技术理性的选择性偏差以及对技术不负责任的使用造成的人文关怀的缺失日益凸显,医学领域的技术异化现象尤为突出.现代医学模式与技术理性的可选择性为技术发展与人文关怀的并进提出了要求也提供了可能.技术的主体应始终把握技术的生存指向,使之发展的终极目的归于人类的更充分的存在. 相似文献