Aim:As conflict caused by cultural diversity among patients in China continues to rise,hospitals are in urgent need for improvement of transcultural efficacy among nurses.This study aims to evaluate the transcultural ...Aim:As conflict caused by cultural diversity among patients in China continues to rise,hospitals are in urgent need for improvement of transcultural efficacy among nurses.This study aims to evaluate the transcultural self-efficacy of nurses working in the tertiary general hospital in Guizhou Province,an ethnic minority region in western China,and to identify whether nurses'demographic characteristics affect their transcultural self-efficacy.Method:We used the Chinese version of the Transcultural Self-Efficacy Tool(TSET-CV)to survey 1,190 inservice nurses.Results:Results showed that the level of transcultural self-efficacy of the nurses was generally moderate;few of the nurses had high or low transcultural self-efficacy.The nurses'transcultural self-efficacy was affected by demographic variables,including age,marital status,employment type,income,work experience,and whether or not they were head nurses.Having a stable work environment,a stable marriage,a good educational background,and a high-ranked professional title were associated with increased transcultural self-efficacy.Conclusion:Nursing administrators in hospitals should offer continuing education on transcuitural nursing according to nurses'demographic characteristics and the SEST scores.展开更多
目的:分析凝血因子Ⅷ抑制物阳性血友病患者APTT纠正试验结果,提高APTT纠正试验在凝血因子Ⅷ抑制物筛查中的价值。方法:收集并稀释制备不同滴度凝血因子Ⅷ抑制物血浆80份进行常规的即刻及37℃孵育2 h APTT纠正试验,选取15份样本进行即刻...目的:分析凝血因子Ⅷ抑制物阳性血友病患者APTT纠正试验结果,提高APTT纠正试验在凝血因子Ⅷ抑制物筛查中的价值。方法:收集并稀释制备不同滴度凝血因子Ⅷ抑制物血浆80份进行常规的即刻及37℃孵育2 h APTT纠正试验,选取15份样本进行即刻和常温孵育15 min、30 min、1和2 h及37℃孵育30 min、1和2 h APTT纠正试验。结果:APTT纠正试验结果与凝血因子Ⅷ抑制物滴度呈明显的相关性,ROC曲线下37℃孵育2 h APTT纠正试验判断有无凝血因子Ⅷ抑制物最佳诊断界点是43.8 s(敏感度85.90%,特异度100%),区分高滴度与低滴度Ⅷ抑制物的最佳诊断界点为52.4 s(敏感度98.18%,特异度95.65%)。即刻APTT无法纠正的临界凝血因子Ⅷ抑制物滴度为5.14 BU/ml,37℃孵育2 h APTT不能纠正对应的凝血因子Ⅷ抑制物的滴度为1.31 BU/ml。对不同时间和温度下APTT纠正试验结果进行配对t检验,差异有统计学意义(P<0.05)。结论:APTT纠正试验结果可作为凝血因子Ⅷ抑制物的筛查指标,较低Ⅷ抑制物滴度时呈明显的对温度-时间的依赖性,血友病患者即刻APTT无法纠正则应警惕较高滴度凝血因子Ⅷ抑制物存在的可能。展开更多
目的总结冠心病研究的文献计量学分布规律。方法以Web of science数据库为基础,检索从2009年1月1日—2018年12月31日期间的文献,借助文献计量学分析软件Histcite,对冠心病研究的文献类型、语种、研究者、研究机构、国家、检索词、期刊...目的总结冠心病研究的文献计量学分布规律。方法以Web of science数据库为基础,检索从2009年1月1日—2018年12月31日期间的文献,借助文献计量学分析软件Histcite,对冠心病研究的文献类型、语种、研究者、研究机构、国家、检索词、期刊、参考文献、引文关系的分布规律进行总结。结果该领域的高产作者是Blumenthal RS(56),最重要的研究者是Smith SC,该领域的期刊中,投稿最多的期刊是Atherosclerosis,重要的刊物是Journal of the American College of Cardiology(603,美国心脏病学会杂志),该领域的重要参考文献是Ross R发表于1999年(356)的文献,该领域的重要检索词是Coronary(1431,冠状动脉),关键的检索词是Disease(1767,疾病)。冠心病研究的文献类型以论著与综述的形式最多,语种以英语为主体。高产的机构是哈佛大学(Harvard Univ)(157),重要的研究机构是Harvard Univ(599),高产的国家是美国(1792),该领域的重要文献是Stone NJ(172)发表于2014年的研究,利用引文关系时序图发现本领域的研究热点与前沿是Sabatine MS发表于2017年、Ridker PM发表于2017年的研究。结论研究表明冠心病的研究随着时间的推移不断地增加,研究群体主要集中于发达国家,中国是其中迅速发展的力量,冠心病的研究更多地针对于动脉粥样硬化的炎性反应上,这对于研究者快速定位本领域的研究内容有重要的指导意义。展开更多
The traditional newsvendor model assumes that a decision-maker is risk-neutral. However, in actuality, a decisionmaker's order behavior is often influenced by waste-averse preference and stockout-averse preference...The traditional newsvendor model assumes that a decision-maker is risk-neutral. However, in actuality, a decisionmaker's order behavior is often influenced by waste-averse preference and stockout-averse preference. We extend the newsvendor model with consideration of averse preferences to investigate how the decision results of the previous period impact the order behavior of the current period, and design an inventory decision-making behavior experiment. Results from the study demonstrate that the order behavior of both a group and an individual exhibits a demand chasing phenomenon, and the former is more significant. Through the interval estimation of the decision maker's order quantity, by the maximum likelihood method we find that the stockout-averse preference has an effect on the decision-making when the prior period is insufficient, causing the current period order quantity larger than the expected profit-maximizing order quantity. In a similar way, waste-averse preference has an effect on decision-making when the prior period is surplus, resulting in the current period order quantity smaller than the expected profit-maximizing order quantity. Finally, we investigate the formation mechanism of demand chasing phenomenon from the perspective of the averse preferences, and propose that this phenomenon is a decision maker's cognitive reaction to stochastic demand environment.展开更多
Morphology and dispersity are key factors for activating peroxymonosulfate(PMS).In this study,we designed a recyclable open-type NiCo_(2)O_(4) hollow microsphere via a simple hydrothermal method with the assistance of...Morphology and dispersity are key factors for activating peroxymonosulfate(PMS).In this study,we designed a recyclable open-type NiCo_(2)O_(4) hollow microsphere via a simple hydrothermal method with the assistance of an NH_(3) vesicle.The physical structure and chemical properties were characterized using techniques such as scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),N2 adsorption and X-ray photoelectron spectroscopy(XPS).The test results confirm that the inner and outer surfaces of open-type NiCo_(2)O_(4) hollow-sphere can be efficiently utilized because of the hole on the surface of the catalyst,which can minimize the diffusion resistance of the reactants and products.Under optimized conditions,the total orga nic carbon(TOC) removal efficiency of rhodamine B(RhB) can reach up to 80% in 40 min,which is almost 50% shorter than the reported values.The reactive radicals were identified and the proposed reaction mechanism was well described.Moreover,the disturbances of HCO_(3)^(-),NO_(3)^(-),Cl^(-)and H_(2) PO_(4)^(-)were further investigated.As a result,HCO_(3)-and NO_(3)-suppressed the reaction while Cl-and H_(2) PO4-had a double effect on reaction.展开更多
文摘Aim:As conflict caused by cultural diversity among patients in China continues to rise,hospitals are in urgent need for improvement of transcultural efficacy among nurses.This study aims to evaluate the transcultural self-efficacy of nurses working in the tertiary general hospital in Guizhou Province,an ethnic minority region in western China,and to identify whether nurses'demographic characteristics affect their transcultural self-efficacy.Method:We used the Chinese version of the Transcultural Self-Efficacy Tool(TSET-CV)to survey 1,190 inservice nurses.Results:Results showed that the level of transcultural self-efficacy of the nurses was generally moderate;few of the nurses had high or low transcultural self-efficacy.The nurses'transcultural self-efficacy was affected by demographic variables,including age,marital status,employment type,income,work experience,and whether or not they were head nurses.Having a stable work environment,a stable marriage,a good educational background,and a high-ranked professional title were associated with increased transcultural self-efficacy.Conclusion:Nursing administrators in hospitals should offer continuing education on transcuitural nursing according to nurses'demographic characteristics and the SEST scores.
文摘目的:分析凝血因子Ⅷ抑制物阳性血友病患者APTT纠正试验结果,提高APTT纠正试验在凝血因子Ⅷ抑制物筛查中的价值。方法:收集并稀释制备不同滴度凝血因子Ⅷ抑制物血浆80份进行常规的即刻及37℃孵育2 h APTT纠正试验,选取15份样本进行即刻和常温孵育15 min、30 min、1和2 h及37℃孵育30 min、1和2 h APTT纠正试验。结果:APTT纠正试验结果与凝血因子Ⅷ抑制物滴度呈明显的相关性,ROC曲线下37℃孵育2 h APTT纠正试验判断有无凝血因子Ⅷ抑制物最佳诊断界点是43.8 s(敏感度85.90%,特异度100%),区分高滴度与低滴度Ⅷ抑制物的最佳诊断界点为52.4 s(敏感度98.18%,特异度95.65%)。即刻APTT无法纠正的临界凝血因子Ⅷ抑制物滴度为5.14 BU/ml,37℃孵育2 h APTT不能纠正对应的凝血因子Ⅷ抑制物的滴度为1.31 BU/ml。对不同时间和温度下APTT纠正试验结果进行配对t检验,差异有统计学意义(P<0.05)。结论:APTT纠正试验结果可作为凝血因子Ⅷ抑制物的筛查指标,较低Ⅷ抑制物滴度时呈明显的对温度-时间的依赖性,血友病患者即刻APTT无法纠正则应警惕较高滴度凝血因子Ⅷ抑制物存在的可能。
文摘目的总结冠心病研究的文献计量学分布规律。方法以Web of science数据库为基础,检索从2009年1月1日—2018年12月31日期间的文献,借助文献计量学分析软件Histcite,对冠心病研究的文献类型、语种、研究者、研究机构、国家、检索词、期刊、参考文献、引文关系的分布规律进行总结。结果该领域的高产作者是Blumenthal RS(56),最重要的研究者是Smith SC,该领域的期刊中,投稿最多的期刊是Atherosclerosis,重要的刊物是Journal of the American College of Cardiology(603,美国心脏病学会杂志),该领域的重要参考文献是Ross R发表于1999年(356)的文献,该领域的重要检索词是Coronary(1431,冠状动脉),关键的检索词是Disease(1767,疾病)。冠心病研究的文献类型以论著与综述的形式最多,语种以英语为主体。高产的机构是哈佛大学(Harvard Univ)(157),重要的研究机构是Harvard Univ(599),高产的国家是美国(1792),该领域的重要文献是Stone NJ(172)发表于2014年的研究,利用引文关系时序图发现本领域的研究热点与前沿是Sabatine MS发表于2017年、Ridker PM发表于2017年的研究。结论研究表明冠心病的研究随着时间的推移不断地增加,研究群体主要集中于发达国家,中国是其中迅速发展的力量,冠心病的研究更多地针对于动脉粥样硬化的炎性反应上,这对于研究者快速定位本领域的研究内容有重要的指导意义。
基金Funded by the Fundamental Research Funds for the Central Universities of China(No.26816WTD23)Key Projects of Scientific Research and Development Plan,Chengdu Railway Bureau,China(No.CX1716)Sichuan Science and Technology Project,China(Title:Safety operation behavior mechanism of rail transit dispatcher taking the Chengdu metro as an example)
文摘The traditional newsvendor model assumes that a decision-maker is risk-neutral. However, in actuality, a decisionmaker's order behavior is often influenced by waste-averse preference and stockout-averse preference. We extend the newsvendor model with consideration of averse preferences to investigate how the decision results of the previous period impact the order behavior of the current period, and design an inventory decision-making behavior experiment. Results from the study demonstrate that the order behavior of both a group and an individual exhibits a demand chasing phenomenon, and the former is more significant. Through the interval estimation of the decision maker's order quantity, by the maximum likelihood method we find that the stockout-averse preference has an effect on the decision-making when the prior period is insufficient, causing the current period order quantity larger than the expected profit-maximizing order quantity. In a similar way, waste-averse preference has an effect on decision-making when the prior period is surplus, resulting in the current period order quantity smaller than the expected profit-maximizing order quantity. Finally, we investigate the formation mechanism of demand chasing phenomenon from the perspective of the averse preferences, and propose that this phenomenon is a decision maker's cognitive reaction to stochastic demand environment.
基金supported by the Hebei Natural Science Foundation (No.B2020208064)the Double Tops Joint Fund of the Yunnan Science and Technology Bureau and Yunnan University (No.2019FY003025)Shijiazhuang Science and Technology Department (No.191240263A)。
文摘Morphology and dispersity are key factors for activating peroxymonosulfate(PMS).In this study,we designed a recyclable open-type NiCo_(2)O_(4) hollow microsphere via a simple hydrothermal method with the assistance of an NH_(3) vesicle.The physical structure and chemical properties were characterized using techniques such as scanning electron microscope(SEM),transmission electron microscope(TEM),X-ray diffraction(XRD),N2 adsorption and X-ray photoelectron spectroscopy(XPS).The test results confirm that the inner and outer surfaces of open-type NiCo_(2)O_(4) hollow-sphere can be efficiently utilized because of the hole on the surface of the catalyst,which can minimize the diffusion resistance of the reactants and products.Under optimized conditions,the total orga nic carbon(TOC) removal efficiency of rhodamine B(RhB) can reach up to 80% in 40 min,which is almost 50% shorter than the reported values.The reactive radicals were identified and the proposed reaction mechanism was well described.Moreover,the disturbances of HCO_(3)^(-),NO_(3)^(-),Cl^(-)and H_(2) PO_(4)^(-)were further investigated.As a result,HCO_(3)-and NO_(3)-suppressed the reaction while Cl-and H_(2) PO4-had a double effect on reaction.
