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Report on Childhood Obesity in China (5) Body Weight, Body Dissatisfaction, and Depression Symptoms of Chinese Children Aged 9-10 Years

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Biomedical and Environmental Sciences 2007年第1期20卷 11-18页

作者： YAN-PING LI GUAN-SHENG MA EVERT G. SCHOUTEN XIAO-QI HU ZHAO-HUI CUI DONG WANG frans j. KOK National Institute for Nutrition and Food Safety Chinese Center for Disease Control and Prevention 29 Nanwei Road Beijing 100050 China Division of Human Nutrition Wageningen University The Netherlands

Objective To investigate the relationship between body weight, body dissatisfaction and depression symptoms among Chinese children. Methods The fasting body weight and height of the third and fourth grade students （n=3886, aged 9 or 10 years） from 20 schools in Beijing, China, were measured, and the students were asked to choose the figures of body image and to complete the self-reported children＇s depression inventory （CDI） questionnaire. Results The CDI Cronbach＇s alpha was 0.81. The total CDI score was 9.60±7.50, 13.2% of children （boys 16.7% vs girls 9.5%） were at risk of developing depression symptoms. Overweight girls, but not boys, had significantly higher total CDI score than their normal weight counteparts. Both obese girls and boys showed a higher negative self-esteem score. More than one fifth underweight girls still wanted to be thinner while more than one third obese boys still wanted to be heavier. Children who wanted to be thinner showed slightly higher scores of ineffectiveness and negative self-esteem. After introducing the body dissatisfaction into the model, overweight was still associated with total CDI score among girls and obesity was still associated with negative self-esteem among both boys and girls. Conclusion Overweight girls show a significantly higher depression symptom score than their normal weight counterparts, which maybe partially explained by body dissatisfaction. Obese boys and girls are both more likely to suffer from low self-esteem, which is partially explained by body dissatisfaction.

关键词： Depression symptoms Body dissatisfaction Overweight Children

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Transmission of Salmonella enteritidis in pairs of layer hens

Transmission of Salmonella enteritidis in pairs of layer hen...

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The 15th World Veterinary Poultry Congress

作者： Maaike E.Thomas Annemarie Bouma Dieudonné Klinkenberg Twan j.van Gerwe Aldert A.Bergwerff jan A.Stegeman frans van Knapen Veterinary Public Health Division Institute for Risk Assessment SciencesUtrecht UniversityYalelaan 23584 CM UtrechtThe Netherlands. Department of Farm Animal Health Faculty of Veterinary MedicineUtrecht UniversityYalelaan 73584 CL UtrechtThe Netherlands Department of Farm Animal Health Faculty of Veterinary MedicineUtrecht UniversityYalelaan 73584 CL UtrechtThe Netherlands Department of Farm Animal Health Faculty of Veterinary MedicineUtrecht UniversityYalelaan 73584 CL UtrechtThe Netherlands Veterinary Public Health Division Institute for Risk Assessment SciencesUtrecht UniversityYalelaan 23584 CM UtrechtThe Netherlands. Department of Farm Animal Health Faculty of Veterinary MedicineUtrecht UniversityYalelaan 73584 CL UtrechtThe Netherlands Veterinary Public Health Division Institute for Risk Assessment SciencesUtrecht UniversityYalelaan 23584 CM UtrechtThe Netherlands.

＜正＞Salmonella is one of the major causes of bacterial gastro-enteritis in humans,and in the European Union （EU）Salmonella enteritidis（S.e.）was by far the most common serovar detected in layer flocks sampled bet...

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Invading from the garden？ A comparison of leaf herbivory for exotic and native plants in natural and ornamental settings

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Insect Science 2012年第6期19卷 677-682页

作者： Stephen F. Matter jessica R.Brzyski Christopher j. Harrison Sara Hyams Clement loo jessica loomis Hannah R. Lubbers Leeann Seastrum Trevor I. Stamper Adam M. Stein Richard Stokes Brandy S. Wilkerson Department of Biological Sciences University of Cincinnati Cincinnati USA

The enemies release hypothesis proposes that exotic species can become in- vasive by escaping from predators and parasites in their novel environment. Agrawal et al. （Enemy release？ An experiment with congeneric plant pairs and diverse above- and below-ground enemies. Ecology, 86, 2979-2989） proposed that areas or times in which damage to introduced species is low provide opportunities for the invasion of native habitat. We tested whether ornamental settings may provide areas with low levels of herbivory for trees and shrubs, potentially facilitating invasion success. First, we compared levels of leaf herbivory among native and exotic species in ornamental and natural settings in Cincinnati, Ohio, United States. In the second study, we compared levels of herbivory for invasive and noninvasive exotic species between natural and ornamental settings. We found lower levels of leaf damage for exotic species than for native species; however, we found no differences in the amount of leaf damage suffered in ornamental or natural settings. Our results do not provide any evidence that ornamental settings afford additional release from herbivory for exotic plant species.

关键词： enemies release hypothesis forest herbivory host plant suburban urban

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What makes a successful industry-level catch-up?General framework and case study of China’s LED industry

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Frontiers of Engineering Management 2021年第2期8卷 284-309页

作者： Bin GUO Peng DING frans jAMGREIDANUS Wen(Helena)LI School of Management Zhejiang UniversityHangzhou 310058China UTS Business School University of Technology SydneySydneyAustralia

How latecomers from emerging countries catch up on technological innovation is an important topic for industrial practitioners,policymakers,and academic *** study systematically reviews 37 empirical studies on the precursors of industry catch-up in emerging countries.A general framework on what makes a successful catch-up in latecomer industries is suggested based on literature *** framework comprises six generic determinants,including technological capability,business ecosystem,government roles,market condition,technological regime,and windows of *** addition,this framework is applied to the Chinese LED industry,and a case analysis of the catch-up is performed in Chinese LED firms.

关键词： framework of catch-up LED industry emerging countries

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Extensive Medical Absenteeism among Secondary School Students: An Observational Study on Their Health Condition from a Biopsychosocial Perspective

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Open journal of Preventive Medicine 2015年第3期5卷 111-121页

作者： Yvonne T. M. vanneste jolanda j. P. Mathijssen Ien L. A. M. van de Goor Carin M. C. Rots-de Vries frans j. M. Feron Regional Public Health Service West Brabant Tilburg The Netherlands Faculty of Social and Behavioural Sciences Tranzo Tilburg University Tilburg The Netherlands Faculty of Health Medicine and Life Sciences (FHML) CAPHRI Department of Social Medicine Maastricht University Maastricht The Netherlands

An adequate approach to reducing school absenteeism should focus on medical absenteeism as this is the most prevalent form of school absenteeism. The objective of this study is to explore the health condition of pre-vocational secondary students with extensive medical absenteeism from a biopsychosocial perspective. Data were obtained from medical assessments and Strengths and Difficulties Questionnaires (SDQs) of students with medical absence above threshold criteria (i.e. reported sick four times in 12 school weeks or more than six consecutive school days) who were referred to a youth health care physician. The results showed that the students had a mean absence rate of 14% in 12 school weeks. Of all students, 43.5% had a diagnosed disease and 81.5% had problems such as physical complaints not yet diagnosed, psychosocial problems, lifestyle problems and sleeping difficulties. Four groups could be distinguished: 13.4% with a diagnosed disease and no problem, 30.1% with a diagnosed disease and a problem, 51.5% with a problem and no diagnosed disease and 5.1% without a diagnosed disease or problem. Significantly higher scores of the Total difficulties-scale on the SDQ were found (mean 10.5;SD 5.8) in the study group, compared to a reference group (mean 9.1;SD 4.9). In conclusion, this study shows that when using the aforementioned criteria for extensive medical absenteeism to intervene with the absence, students with a mean absence rate of 14% in 12 school weeks are identified. If there was a diagnosed disease, it was accompanied by problems about twice as often. More than half of the students’ absence was caused by problems rather than a disease. The great diversity of these problems calls for a personalized approach. A broad perspective, including medical expertise, is needed to distinguish between emerging mental and physical diseases, psychosocial and lifestyle problems.

关键词： Adolescent Health Preventive Pediatric Primary Care School Absenteeism Public Health Psychosocial Problems

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Report on Childhood Obesity in China(8):Effects and Sustainability of Physical Activity Intervention on Body Composition of Chinese Youth

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Biomedical and Environmental Sciences 2010年第3期23卷 180-187页

作者： YAN-PING LI XIAO=QI HU EVERT G. SCHOUTEN AI-LING LIU SONG-MING DU LIN-ZHONG LI ZHAO-HuI CUI DONG WANG frans j KOK FRANK B HU GUAN-SHENG MA National Institute for Nutrition and Food Safety Chinese Center for Disease Control and Prevention Beijing 100050 China Division of Human Nutrition Wageningen University The Netherlands Departments of Nutrition and Epidemiology Harvard School of Public Health USA Department of Global Health and Population Harvard School of Public Health USA

Objectives To determine whether a large-scale physical activity intervention could affect body composition in primary school students in Beijing, China. Methods The study design was one-year cluster randomized controlled trial of physical activity intervention （20 rain of daily exercise in the classroom） with an additional year of follow-up among 4 700 students aged 8-11 years at baseline. Results After the one-year intervention, BMI increased by 0.56 kg/m2 （SD 1.15） in the intervention group and by 0.72 kg/m^2 （SD 1.20） in the control group, with a mean difference of-0.15 kg/m^2 （95% CI： -0.28 to -0.02）. BMI z score decreased by -0.05 （SD 0.44） in the intervention group, but increased by 0.01 （SD 0.46） in the control group, with a mean difference of-0.07 （-0.13 to -0.01）. After another year of follow up, compared to the control group, children in the intervention group had significantly lower BMI （-0.13, -0.25 to -0.01 ）, BMI z score （-0.05, -0.10 to -0.01）, fat mass （-0.27 kg, -0.53 to -0.02） and percent body fat （-0.53, -1.00 to -0.05）. The intervention had a more pronounced effect on weight, height, BMI, BMI z score, and body composition among obese children than among normal weight or overweight children. Compared to the control group, the intervention group had a significantly higher percentage of children who maintained or reduced their BMI z score at year 1 （P-0.008） and year 2 （P=-0.04）. Conclusions These findings suggest that 20 min of daily moderate to vigorous physical activity during the school year is a feasible and effective way to prevent excessive gain of body weight, BMI, and body fatness in primary school students.

关键词： Intervention BMI School China

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低L-异构体含量左旋聚乳酸在高压二氧化碳处理后的结晶与形态

低L-异构体含量左旋聚乳酸在高压二氧化碳处理后的结晶与形态

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2012年全国高分子材料科学与工程研讨会

作者：余坚兰巧锋何嘉松 frans H.j.Maurer 张军北京分子科学国家实验室工程塑料重点实验室中国科学院化学研究所聚合物与材料化学系隆德理工学院隆德大学

＜正＞左旋聚乳酸（PLLA）由单体左旋（L-型）乳酸（L-LA）聚合而得。L-LA一般是以小麦、稻谷及玉米等农作物为原料经淀粉发酵而成,其原料来源丰富;而PLLA又具备热塑性、较好的机械性能、良好的生物相容性和生物降解性,材料有广泛的应... 详细信息

＜正＞左旋聚乳酸（PLLA）由单体左旋（L-型）乳酸（L-LA）聚合而得。L-LA一般是以小麦、稻谷及玉米等农作物为原料经淀粉发酵而成,其原料来源丰富;而PLLA又具备热塑性、较好的机械性能、良好的生物相容性和生物降解性,材料有广泛的应用领域。PLLA的分子结构与加工条件影响其固态结构,随之影响其性能与应用。作为一种结晶性聚合物,PLLA的物理力

关键词： crystallization morphology poly(L-lactide) compressed CO2

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Association of smoking, alcohol drinking and dietary factors with esophageal cancer in high- and low-risk areas of jiangsu Province, China

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World journal of Gastroenterology 2006年第11期12卷 1686-1693页

作者： Ming Wu jin-Kou Zhao Xiao-Shu Hu Pei-Hua Wang Yu Qin Yin-Chang Lu jie Yang Ai-Min Liu De-Lin Wu Zuo-Feng Zhang Kok j frans Pieter van't Veer jiangsu Provincial Center for Disease Control and Prevention Nanjing 210009 Jiangsu ProvinceChina Dafeng Center for Disease Control and Prevention Dafeng 224100 Jiangsu Province China Ganyu Center for Disease Control and Prevention Ganyu 222100 Jiangsu Province China Department of Epidemiology UCLA School of PublicHealth Los Angeles California United States Pieter van't Veer Division of Human Nutrition Wageningen University Wageningen 6700 EV the Netherlands Supported by Jiangsu Provincial Health Department No. RC 2003090

瞄准：到环境的 main 和在食道的癌症(EC ) 说明地区性的差别的生活方式因素在江苏省的低风险、高风险的区域冒的风险的学习，中国。方法：自从 2003，基于人口的盒子控制研究同时被进行了在低风险(Ganyu 县) 并且高风险(Dafeng 县) 江... 详细信息

瞄准：到环境的 main 和在食道的癌症(EC ) 说明地区性的差别的生活方式因素在江苏省的低风险、高风险的区域冒的风险的学习，中国。方法：自从 2003，基于人口的盒子控制研究同时被进行了在低风险(Ganyu 县) 并且高风险(Dafeng 县) 江苏省的区域，中国。使用相同协议和 pre-tested 标准化了问询表，跟随写的知情同意，合格题目被询问他们 EC 的潜在的决定因素的详细信息包括人口统计的信息，社会经济的地位，生活条件，疾病历史，家庭癌症历史，吸烟，酒精喝酒，饮食的习惯，频率，食物摄取的数量，等等。有最大的可能性评价的有条件的逻辑回归被用来获得机会比率(或) 并且 95 % 信心间隔(95% CI ) ，在为潜力的调整以后，反对失败。结果：在进行中的学习的初步的分析，我们招募了在 Ganyu 的在 Dafeng 的 291 个盒子和 240 个盒子和控制分别地。在低风险、高风险的区域， EC 相反地与社会经济的地位被联系，例如教育的水平，经过经济地位和身体团索引。然而，这疾病在有癌症的家庭历史或在过去的 10 年里遇到了不幸的那些之中是更经常的。EC 在吸烟者，白酒喝酒者和快食客之中也是更经常的。而且，有在吸烟，酒精喝酒和尽管有在低风险、高风险的区域的这些风险因素的类似的流行的 EC 风险之间的协会的一个地理变化。吸烟并且吸烟的剂量反应关系联系了变量，例如首先吸烟，持续时间和数量的年龄在高风险的区域仅仅是明显的。相反，在 EC 上喝的酒精的效果上的一种剂量反应关系仅仅在低风险的区域被观察。结论：环境风险因素，可能和基因因素和基因环境的相互作用是为在江苏省的这个高风险的坡度的主要原因，中国。

关键词：食管癌吸烟酒精生活方式江苏

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Some results about holomorphic vector bundles over general Hopf manifolds

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Science China Mathematics 2009年第12期52卷 2863-2866页

作者： ZHOU XiangYu Institute of Mathematics,Academy of Mathematics and Systems Science,and Hua loo-Keng Key Laboratory of Mathematics,Chinese Academy of Sciences,Beijing 100190,China Institute of Mathematics Academy of Mathematics and Systems Science and Hua Loo-Keng Key Laboratory of Mathematics Chinese Academy of Sciences Beijing China

In the present note that grew out of my talk given at the conference in honor of Prof. Zhong Tongde,I give a survey of some recent results about holomorphic vector bundles over general Hopf manifolds.

关键词： holomorphic vector bundles Hopf manifolds cohomology groups

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The growing threat of non-alcoholic fatty liver disease-related hepatocellular carcinoma

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Hepatobiliary Surgery and Nutrition 2022年第5期11卷 735-737页

作者： Margaret L.P.Teng Kai En Chan Darren j.H.Tan Daniel Q.Huang Division of Gastroenterology and Hepatology Department of MedicineNational University Health SystemSingaporeSingapore Yong loo Lin School of Medicine National University of SingaporeSingaporeSingapore

Non-alcoholic fatty liver disease(NAFLD)is the fastest growing cause of hepatocellular carcinoma(HCC)worldwide(1).It is anticipated that the burden of NAFLD-related HCC will continue to increase in tandem with the global obesity epidemic(2,3).This has become a global issue of concern,as liver cancer is associated with significant morbidity and mortality,and is currently the third leading cause of cancer death(4).

关键词： hepatocellular NAFLD liver

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