Soils are composed of natural inorganic and organic(both natural plant and animal and also man-made)components.The organic soil profile is complex,and there is a range of analytical methods available;however,the organ...Soils are composed of natural inorganic and organic(both natural plant and animal and also man-made)components.The organic soil profile is complex,and there is a range of analytical methods available;however,the organic characteristics strongly complement that of the soil inorganic profile characteristics to provide a complete soil analytical profile,allowing detailed comparison and evaluation of soil recovered from questioned items with soil at a crime scene and to also provide clues in crime reconstruction and in search operations.Organic profiles can provide information about a range of soil forming features such as the vegetation present,land use past and present,altitude,etc.,as well as providing information about nearness to industry and roads,tracks and rail networks and infrastructure.Biomarkers which remain in soil as a result of body decomposition can also be analysed and used in search and to help locate human remains.展开更多
Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders（WMSDs） and work organization based on a case-control study. Methods A total of 1938 workers who claimed t...Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders（WMSDs） and work organization based on a case-control study. Methods A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. Results A total of 13 variables（P〈0.1） were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance（P〈0.05）. The odds ratios（OR） of ＇work changing with season＇ and ＇sufficient rest time＇ did not reach 1（0.749 and 0.441, respectively）. In addition, ＇sufficient rest time＇ seemed to be the stronger protective factor according to its higher standardized coefficient. And ＇repetitive work every minute＇, ＇constantly repetitive work＇（every day）, ＇shortage of site personnel＇, and ＇often switching shifts with others＇ seemed to be the risk factors. Conclusion Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required.展开更多
Iam a judge, working on cases of juvenile delinquency since September 1987. At the same time, I am a mother. Not only my own children call me "mother," but also many of the youngsters whom I have tried and s...Iam a judge, working on cases of juvenile delinquency since September 1987. At the same time, I am a mother. Not only my own children call me "mother," but also many of the youngsters whom I have tried and sentenced. As a mother, I’m sympathetic towards these youngsters who have taken a misstep in life. As a judge,展开更多
文摘Soils are composed of natural inorganic and organic(both natural plant and animal and also man-made)components.The organic soil profile is complex,and there is a range of analytical methods available;however,the organic characteristics strongly complement that of the soil inorganic profile characteristics to provide a complete soil analytical profile,allowing detailed comparison and evaluation of soil recovered from questioned items with soil at a crime scene and to also provide clues in crime reconstruction and in search operations.Organic profiles can provide information about a range of soil forming features such as the vegetation present,land use past and present,altitude,etc.,as well as providing information about nearness to industry and roads,tracks and rail networks and infrastructure.Biomarkers which remain in soil as a result of body decomposition can also be analysed and used in search and to help locate human remains.
基金supported by the Research Fund from National Science and Technology Infrastructure Program of the People’s Republic of China(2014BAI12B03)Major Project of Beijing Academy of Science and Technology(PXM2014-178304-000002-00131228)
文摘Objective In this study, we aimed at exploring the association between work-related musculoskeletal disorders（WMSDs） and work organization based on a case-control study. Methods A total of 1938 workers who claimed to suffer from WMSDs were selected from Beijing, Henan, Hubei, and the Guangdong province. The control group consisted of 2009 workers employed in similar industries without severe disease or musculoskeletal discomforts. We used a modified version of the questionnaire developed by the NMQ and the DMQ to investigate individual and work-related factors. Results A total of 13 variables（P〈0.1） were selected by the chi-square test and finally, 7 variables entered into the equation, with 6 variables reaching statistical significance（P〈0.05）. The odds ratios（OR） of ＇work changing with season＇ and ＇sufficient rest time＇ did not reach 1（0.749 and 0.441, respectively）. In addition, ＇sufficient rest time＇ seemed to be the stronger protective factor according to its higher standardized coefficient. And ＇repetitive work every minute＇, ＇constantly repetitive work＇（every day）, ＇shortage of site personnel＇, and ＇often switching shifts with others＇ seemed to be the risk factors. Conclusion Work organization may have comprehensive effects on the occurrence of WMSDs. This pattern of associations suggests that further investigation into the mechanism of how work organization affects the prevalence of WMSDs is required.
文摘Iam a judge, working on cases of juvenile delinquency since September 1987. At the same time, I am a mother. Not only my own children call me "mother," but also many of the youngsters whom I have tried and sentenced. As a mother, I’m sympathetic towards these youngsters who have taken a misstep in life. As a judge,
