以往在研究第三方物流供应商的选择问题时,通常假设第三方物流供应商(3PLS)对第四方物流集成商(4PLI)持风险中性态度,而这与现实是不符的.为了使研究更加贴近实际,考虑第三方物流供应商有风险态度的情况下,第四方物流集成商通过多属性...以往在研究第三方物流供应商的选择问题时,通常假设第三方物流供应商(3PLS)对第四方物流集成商(4PLI)持风险中性态度,而这与现实是不符的.为了使研究更加贴近实际,考虑第三方物流供应商有风险态度的情况下,第四方物流集成商通过多属性逆向拍卖方式对第三方物流供应商进行选择.通过案例设计和进行相关实验,发现通过条件风险价值(conditional value at risk,CVaR)的风险度量方法对风险态度进行度量,很好地将风险因素融合到了多属性逆向拍卖中,打破了传统的第四方物流集成商选择时风险中性的假设,并且将风险度量中常用的CVaR方法融合到了供应商选择中,具有一定创新性.通过对不同风险厌恶程度以及风险中性的情况进行对比,结果表明,当3PLS为风险中性时对4PLI是最有利的,当3PLS为风险厌恶时,风险厌恶程度越小对4PLI越有利.展开更多
目的:观察中药熏洗联合个性化疼痛护理在混合痔患者术后的应用效果。方法:将80例混合痔手术患者随机分为观察组和对照组,每组40例。对照组患者实施常规护理与中药熏洗,观察组在常规护理的基础上增加中药熏洗联合个性化疼痛护理,比较2组...目的:观察中药熏洗联合个性化疼痛护理在混合痔患者术后的应用效果。方法:将80例混合痔手术患者随机分为观察组和对照组,每组40例。对照组患者实施常规护理与中药熏洗,观察组在常规护理的基础上增加中药熏洗联合个性化疼痛护理,比较2组患者术后疼痛程度、水肿消失时间、重建排便时间、创面愈合时间、术后并发症、护理依从性以及护理满意度。结果:干预前2组患者疼痛评分比较差异无统计学意义(P>0.05),干预后1 d、3 d 2组患者疼痛评分均低于干预前,且观察组低于对照组(P<0.05),观察组患者术后第1次排便疼痛评分低于对照组(P<0.05);观察组患者水肿消失时间、重建排便时间、创面愈合时间均明显短于对照组(P<0.05),术后并发症发生率低于对照组(P<0.05);观察组患者治疗依从率明显高于对照组(P<0.05);观察组患者护理满意度高于对照组(P<0.05)。结论:中药熏洗联合个性化疼痛护理可减轻患者术后疼痛,促进创面愈合,降低术后并发症发生率,提高护理依从性和满意度,值得临床推广应用。展开更多
人们通常习惯用语言术语来表达他们的偏好,因此概率型语言术语集(Probabilistic Linguistic Term Set,PLTS)在决策过程中有着十分重要的作用。目前PLTS的研究刚刚起步,有关PLTS的相关研究没有关注到一致性度量的问题,对于PLTS的多属性...人们通常习惯用语言术语来表达他们的偏好,因此概率型语言术语集(Probabilistic Linguistic Term Set,PLTS)在决策过程中有着十分重要的作用。目前PLTS的研究刚刚起步,有关PLTS的相关研究没有关注到一致性度量的问题,对于PLTS的多属性群决策方法有待进一步研究。首先,给出了一种新的PLTS的集结方法,并且在已有的PLTS可能度公式的基础上,构建了PLTS的相似度量方法,在此基础上,进一步提出了基于PLTS一致性度量的多属性群决策方法。该方法在各决策者权重未知的情况下,考虑到各决策者之间的一致性。首先,定义PLTS的一致性度量公式,确定决策者权重;并根据PLTS的集结方法,集结各决策者的评价信息;最后,利用可能度公式对PLTS进行排序。通过案例分析验证了该方法的可行性和优越性。展开更多
Background It is a common phenomenon that children experience multiple general anesthesias in clinical practice, which raises the question whether repeated exposure to general anesthetics would interfere with the deve...Background It is a common phenomenon that children experience multiple general anesthesias in clinical practice, which raises the question whether repeated exposure to general anesthetics would interfere with the development of the central nervous system of children. The present study was designed to evaluate the effects of repeated treatment with ketamine or midazolam on postnatal dendrite development by examining the morphology of the dendritic spines of the pyramidal neurons in the hippocampal CA1 region in mice. Methods The transgenic green fluorescent protein-M line (GFP-M) mice were used in this study. Ketamine (100 mg/kg) midazolam (50 mg/kg) or saline (10 ml/kg) was administered intraperitoneally once a day on consecutive days from postnatal day 8 (P8) to postnatal day 12 (P12). At postnatal day 13 (P13) and postnatal day 30 (P30), the density and length of the apical dendritic spines of the pyramidal neurons in the hippocampal CA1 region were examined under a confocal microscope. Results At P13, for both the ketamine group and the midazolam group, the dendritic spines were found with a comparatively lower density and longer average length than in the control group. At P30, no significant difference in the density or average length of dendritic spines was found between the anesthetic group and control group. Conclusions This study indicated that repeated exposure to ketamine or midazolam in neonatal mice impaired dendritic spine maturation immediately afterwards, but this influence seemed to disappear during further postnatal development.展开更多
文摘以往在研究第三方物流供应商的选择问题时,通常假设第三方物流供应商(3PLS)对第四方物流集成商(4PLI)持风险中性态度,而这与现实是不符的.为了使研究更加贴近实际,考虑第三方物流供应商有风险态度的情况下,第四方物流集成商通过多属性逆向拍卖方式对第三方物流供应商进行选择.通过案例设计和进行相关实验,发现通过条件风险价值(conditional value at risk,CVaR)的风险度量方法对风险态度进行度量,很好地将风险因素融合到了多属性逆向拍卖中,打破了传统的第四方物流集成商选择时风险中性的假设,并且将风险度量中常用的CVaR方法融合到了供应商选择中,具有一定创新性.通过对不同风险厌恶程度以及风险中性的情况进行对比,结果表明,当3PLS为风险中性时对4PLI是最有利的,当3PLS为风险厌恶时,风险厌恶程度越小对4PLI越有利.
文摘目的:观察中药熏洗联合个性化疼痛护理在混合痔患者术后的应用效果。方法:将80例混合痔手术患者随机分为观察组和对照组,每组40例。对照组患者实施常规护理与中药熏洗,观察组在常规护理的基础上增加中药熏洗联合个性化疼痛护理,比较2组患者术后疼痛程度、水肿消失时间、重建排便时间、创面愈合时间、术后并发症、护理依从性以及护理满意度。结果:干预前2组患者疼痛评分比较差异无统计学意义(P>0.05),干预后1 d、3 d 2组患者疼痛评分均低于干预前,且观察组低于对照组(P<0.05),观察组患者术后第1次排便疼痛评分低于对照组(P<0.05);观察组患者水肿消失时间、重建排便时间、创面愈合时间均明显短于对照组(P<0.05),术后并发症发生率低于对照组(P<0.05);观察组患者治疗依从率明显高于对照组(P<0.05);观察组患者护理满意度高于对照组(P<0.05)。结论:中药熏洗联合个性化疼痛护理可减轻患者术后疼痛,促进创面愈合,降低术后并发症发生率,提高护理依从性和满意度,值得临床推广应用。
文摘人们通常习惯用语言术语来表达他们的偏好,因此概率型语言术语集(Probabilistic Linguistic Term Set,PLTS)在决策过程中有着十分重要的作用。目前PLTS的研究刚刚起步,有关PLTS的相关研究没有关注到一致性度量的问题,对于PLTS的多属性群决策方法有待进一步研究。首先,给出了一种新的PLTS的集结方法,并且在已有的PLTS可能度公式的基础上,构建了PLTS的相似度量方法,在此基础上,进一步提出了基于PLTS一致性度量的多属性群决策方法。该方法在各决策者权重未知的情况下,考虑到各决策者之间的一致性。首先,定义PLTS的一致性度量公式,确定决策者权重;并根据PLTS的集结方法,集结各决策者的评价信息;最后,利用可能度公式对PLTS进行排序。通过案例分析验证了该方法的可行性和优越性。
文摘Background It is a common phenomenon that children experience multiple general anesthesias in clinical practice, which raises the question whether repeated exposure to general anesthetics would interfere with the development of the central nervous system of children. The present study was designed to evaluate the effects of repeated treatment with ketamine or midazolam on postnatal dendrite development by examining the morphology of the dendritic spines of the pyramidal neurons in the hippocampal CA1 region in mice. Methods The transgenic green fluorescent protein-M line (GFP-M) mice were used in this study. Ketamine (100 mg/kg) midazolam (50 mg/kg) or saline (10 ml/kg) was administered intraperitoneally once a day on consecutive days from postnatal day 8 (P8) to postnatal day 12 (P12). At postnatal day 13 (P13) and postnatal day 30 (P30), the density and length of the apical dendritic spines of the pyramidal neurons in the hippocampal CA1 region were examined under a confocal microscope. Results At P13, for both the ketamine group and the midazolam group, the dendritic spines were found with a comparatively lower density and longer average length than in the control group. At P30, no significant difference in the density or average length of dendritic spines was found between the anesthetic group and control group. Conclusions This study indicated that repeated exposure to ketamine or midazolam in neonatal mice impaired dendritic spine maturation immediately afterwards, but this influence seemed to disappear during further postnatal development.