In China, farmers employed in non-farm work have become important socio-economic actors, but few studies have examined the farmers' perspective in making their work location choices. Based on "push-pull"...In China, farmers employed in non-farm work have become important socio-economic actors, but few studies have examined the farmers' perspective in making their work location choices. Based on "push-pull" migration theory, this paper utilizes sectional data from a 2013 survey of farmers in China's Three Gorges Reservoir area to empirically analyze the factors influencing migrant workers' choice of employment location. The results indicate that 60.46% of laborers have migrated from their home province, whereas 39.54% have remained in their home province. Focusing on personal, household, and community characteristics—in addition to the economic characteristics of the sample counties—multinomial logistic regression models reveal that farmer-laborers' employment location decisions are influenced by their personal capital endowment(age, years of education and social networks), family structure(the number of laborers, elders, children and students), home village characteristics(location, economic development level and the degree of relief of the land) and home county economic development level. Notably, male and female laborers' location decisions reveal a converging trend, and their differences are not pronounced. Per capita arable land area has little influence on location decisions, whereas the educational level of laborers has a significant impact. The results differ significantly from those found in previous studies.展开更多
目的:探讨基于健康行为改变整合理论(Integratedtheory of health behavior change,ITHBC)的健康教育对颌面部外伤整形患者创面愈合的影响。方法:选取2019年6月-2022年6月笔者医院收治的预行整形美容缝合术的102例颌面部损伤患者,按随...目的:探讨基于健康行为改变整合理论(Integratedtheory of health behavior change,ITHBC)的健康教育对颌面部外伤整形患者创面愈合的影响。方法:选取2019年6月-2022年6月笔者医院收治的预行整形美容缝合术的102例颌面部损伤患者,按随机数字表法分为对照组和观察组,每组51例。对照组采用常规护理干预,观察组在对照组基础上采用基于ITHBC的健康教育。比较两组创面愈合优良率、并发症总发生率、满意度及心理状态和生活质量评分。结果:观察组创面愈合优良率高于对照组(P<0.05),观察组并发症总发生率低于对照组(P<0.05)。干预前,两组抑郁自评量表(Selfrating depression scale,SDS)评分、焦虑自评量表(Self-rating anxiety scale,SAS)评分及36项简明生活质量量表(36-item short form health survey,SF-36)各项评分比较,差异无统计学意义(P>0.05)。干预后,两组SDS、SAS评分均降低,且观察组低于对照组(P<0.05);两组SF-36各项评分均升高,且观察组高于对照组(P<0.05)。观察组满意度评分高于对照组(P<0.05)。结论:基于ITHBC的健康教育可有效减少颌面部外伤整形美容患者创面感染,促进创面愈合,改善患者心理状态及生活质量,患者满意度较高,临床应用效果较好。展开更多
Based on density functional theory and electronegativity equalization principle, a σπ model, which considers the structure of double bond for the first time, is developed. In this model the double bond is partitione...Based on density functional theory and electronegativity equalization principle, a σπ model, which considers the structure of double bond for the first time, is developed. In this model the double bond is partitioned into one σ bond region and four π bond regions. The atom bond electronegativity equalization method plus σπ model(ABEEM σπ ) is then proposed for the calculation of charge distribution and charge polarization in large molecules. It has been shown that the results of charge distribution in large molecules obtained by ABEEM σπ model agree with those obtained by ab initio method very well. In addition, the model can be used to explain the region selectivity of Diels Alder reaction successfully. All these indicate that ABEEM σπ model is reasonable and reliable.展开更多
基金financial supports from the National Natural Science Foundation of China (Grant Nos. 41571527, 41301193, 41101552,41401198)Main Direction Program (KZCX2-EW317)West Light Foundation of the Chinese Academy of Sciences (2013Yuhui)
文摘In China, farmers employed in non-farm work have become important socio-economic actors, but few studies have examined the farmers' perspective in making their work location choices. Based on "push-pull" migration theory, this paper utilizes sectional data from a 2013 survey of farmers in China's Three Gorges Reservoir area to empirically analyze the factors influencing migrant workers' choice of employment location. The results indicate that 60.46% of laborers have migrated from their home province, whereas 39.54% have remained in their home province. Focusing on personal, household, and community characteristics—in addition to the economic characteristics of the sample counties—multinomial logistic regression models reveal that farmer-laborers' employment location decisions are influenced by their personal capital endowment(age, years of education and social networks), family structure(the number of laborers, elders, children and students), home village characteristics(location, economic development level and the degree of relief of the land) and home county economic development level. Notably, male and female laborers' location decisions reveal a converging trend, and their differences are not pronounced. Per capita arable land area has little influence on location decisions, whereas the educational level of laborers has a significant impact. The results differ significantly from those found in previous studies.
文摘目的:探讨基于健康行为改变整合理论(Integratedtheory of health behavior change,ITHBC)的健康教育对颌面部外伤整形患者创面愈合的影响。方法:选取2019年6月-2022年6月笔者医院收治的预行整形美容缝合术的102例颌面部损伤患者,按随机数字表法分为对照组和观察组,每组51例。对照组采用常规护理干预,观察组在对照组基础上采用基于ITHBC的健康教育。比较两组创面愈合优良率、并发症总发生率、满意度及心理状态和生活质量评分。结果:观察组创面愈合优良率高于对照组(P<0.05),观察组并发症总发生率低于对照组(P<0.05)。干预前,两组抑郁自评量表(Selfrating depression scale,SDS)评分、焦虑自评量表(Self-rating anxiety scale,SAS)评分及36项简明生活质量量表(36-item short form health survey,SF-36)各项评分比较,差异无统计学意义(P>0.05)。干预后,两组SDS、SAS评分均降低,且观察组低于对照组(P<0.05);两组SF-36各项评分均升高,且观察组高于对照组(P<0.05)。观察组满意度评分高于对照组(P<0.05)。结论:基于ITHBC的健康教育可有效减少颌面部外伤整形美容患者创面感染,促进创面愈合,改善患者心理状态及生活质量,患者满意度较高,临床应用效果较好。
文摘Based on density functional theory and electronegativity equalization principle, a σπ model, which considers the structure of double bond for the first time, is developed. In this model the double bond is partitioned into one σ bond region and four π bond regions. The atom bond electronegativity equalization method plus σπ model(ABEEM σπ ) is then proposed for the calculation of charge distribution and charge polarization in large molecules. It has been shown that the results of charge distribution in large molecules obtained by ABEEM σπ model agree with those obtained by ab initio method very well. In addition, the model can be used to explain the region selectivity of Diels Alder reaction successfully. All these indicate that ABEEM σπ model is reasonable and reliable.
