Objective This study assesses the impact of iodine-rich processed foods and dining places on the iodine nutritional status of children.Methods School-aged children(SAC) in seven provinces in China were selected by sch...Objective This study assesses the impact of iodine-rich processed foods and dining places on the iodine nutritional status of children.Methods School-aged children(SAC) in seven provinces in China were selected by school-based multistage sampling. Urinary iodine, salt iodine, and thyroid volume(TVOL) were determined. Questionnaires were used to investigate dining places and iodine-rich processed foods. The water iodine was from the2017 national survey. Multi-factor regression analysis was used to find correlations between variables.Results Children ate 78.7% of their meals at home, 15.1% at school canteens, and 6.1% at other places.The percentage of daily iodine intake from water, iodized salt, iodine-rich processed foods, and cooked food were 1.0%, 79.2%, 1.5%, and 18.4%, respectively. The salt iodine was correlated with the urinary iodine and TVOL, respectively(r = 0.999 and-0.997, P < 0.05). The iodine intake in processed foods was weakly correlated with the TVOL(r = 0.080, P < 0.01). Non-iodized salt used in processed foods or diets when eating out had less effect on children’s iodine nutrition status.Conclusion Iodized salt remains the primary source of daily iodine intake of SAC, and processed food has less effect on iodine nutrition. Therefore, for children, iodized salt should be a compulsory supplement in their routine diet.展开更多
In first-year and second-year seminars, students were assigned homework requiring them to upload entries in a LP (learning portfolio) to a designated website every week. Students selected what they considered to be ...In first-year and second-year seminars, students were assigned homework requiring them to upload entries in a LP (learning portfolio) to a designated website every week. Students selected what they considered to be the most impressive lesson in a given week and reflected on ways to put the material contained in the lesson to practical use. Additionally they reflected on their experience outside the classroom in order to relate this experience to material covered in the lessons. Students had positive feelings about the LPs and recognized that the LPs helped them grow as students. But students had difficulty comprehending connections between the material presented in lessons and out-of-class experiences. Students indicated that the instructor's comments increased their motivation to continue working on the LPs. Instructors should make time to meet with students to discuss LPs in class, and this ideally would increase reciprocal understanding between instructors and students.展开更多
The role of practice teaching in the cultivation of college talents is becoming more and more important. Students' off-campus internships are an essential part of practice teaching. The organizational implementation ...The role of practice teaching in the cultivation of college talents is becoming more and more important. Students' off-campus internships are an essential part of practice teaching. The organizational implementation of off-campus internship is the foundation of the success of the internship and the realization of the goal of training talents. The university should improve the system construction, ensure the student's off-campus program, the organization, the teacher, the financial support and so on. In line with the principle of mutual benefit, the author will strengthen communication and exchanges with enterprises and establish a long-term and stable basis for after-school internship. To guarantee the practice effect and achieve the goals of talents cultivation, stimulating students' enthusiasm to participate in the internship is necessary through the establishment of scientific and reasonable practice performance evaluation system.展开更多
Dining lampblack as a source of atmospheric pollution,urban residents had to spend a lot of economic costs all year round to solve its impact.However,traditional treatment methods often carry the risk of secondary pol...Dining lampblack as a source of atmospheric pollution,urban residents had to spend a lot of economic costs all year round to solve its impact.However,traditional treatment methods often carry the risk of secondary pollution.The use of phase change absorption solvent(PCAS)controlled by CO_(2)can effectively absorb the oily components in dining lampblack,and smoothly avoid the generation of secondary pollutants and squandering of resources.The reversibility of PCASs under CO_(2)control was explained by pH changes and macroscopic visualizations.The absorption effects of favorable absorbents and PCASs on dining lampblack were compared and analyzed.The fatty acid(FA)in the oil absorption mixture was desorbed by interacting with D230.The results of GC/MS analysis on the oil components separated by desorption showed that the desorption of PCASs was effective for these refractory oil components.FAs can be enriched and applied to the subsequent dining lampblack treatment link to realize the waste recycling.In addition,the absorption and desorption of oily components by PCASs were combined with the CO_(2)-controlled phase transformation of PCASs itself to achieve the absorption circulation of treating dining lampblack by using PCASs.展开更多
Chinese and Western diet culture has great differences.This paper analysed the differences of Chinese and Western dining etiquette,dietary concept,dietary content and the reasons and the impact for the differences.It ...Chinese and Western diet culture has great differences.This paper analysed the differences of Chinese and Western dining etiquette,dietary concept,dietary content and the reasons and the impact for the differences.It aims to help fully understand the different culture between China and the west,the hinder between cross-cultural communication and effectively foster people’s adaptability while doing cross-cultural communication and prevent social conflict caused by cultural differences the two展开更多
基金supported by the National Nature Fund[No.81773370]the 2019 China Hygiene and Health Standard Project[No.20190502]。
文摘Objective This study assesses the impact of iodine-rich processed foods and dining places on the iodine nutritional status of children.Methods School-aged children(SAC) in seven provinces in China were selected by school-based multistage sampling. Urinary iodine, salt iodine, and thyroid volume(TVOL) were determined. Questionnaires were used to investigate dining places and iodine-rich processed foods. The water iodine was from the2017 national survey. Multi-factor regression analysis was used to find correlations between variables.Results Children ate 78.7% of their meals at home, 15.1% at school canteens, and 6.1% at other places.The percentage of daily iodine intake from water, iodized salt, iodine-rich processed foods, and cooked food were 1.0%, 79.2%, 1.5%, and 18.4%, respectively. The salt iodine was correlated with the urinary iodine and TVOL, respectively(r = 0.999 and-0.997, P < 0.05). The iodine intake in processed foods was weakly correlated with the TVOL(r = 0.080, P < 0.01). Non-iodized salt used in processed foods or diets when eating out had less effect on children’s iodine nutrition status.Conclusion Iodized salt remains the primary source of daily iodine intake of SAC, and processed food has less effect on iodine nutrition. Therefore, for children, iodized salt should be a compulsory supplement in their routine diet.
文摘In first-year and second-year seminars, students were assigned homework requiring them to upload entries in a LP (learning portfolio) to a designated website every week. Students selected what they considered to be the most impressive lesson in a given week and reflected on ways to put the material contained in the lesson to practical use. Additionally they reflected on their experience outside the classroom in order to relate this experience to material covered in the lessons. Students had positive feelings about the LPs and recognized that the LPs helped them grow as students. But students had difficulty comprehending connections between the material presented in lessons and out-of-class experiences. Students indicated that the instructor's comments increased their motivation to continue working on the LPs. Instructors should make time to meet with students to discuss LPs in class, and this ideally would increase reciprocal understanding between instructors and students.
文摘The role of practice teaching in the cultivation of college talents is becoming more and more important. Students' off-campus internships are an essential part of practice teaching. The organizational implementation of off-campus internship is the foundation of the success of the internship and the realization of the goal of training talents. The university should improve the system construction, ensure the student's off-campus program, the organization, the teacher, the financial support and so on. In line with the principle of mutual benefit, the author will strengthen communication and exchanges with enterprises and establish a long-term and stable basis for after-school internship. To guarantee the practice effect and achieve the goals of talents cultivation, stimulating students' enthusiasm to participate in the internship is necessary through the establishment of scientific and reasonable practice performance evaluation system.
基金supported by the Chengdu Science and Technology Project of the Chengdu Bureau of Science and Technology(2021-YF05-00194-SN)the Foundation of Department of Science and Technology of Sichuan Province(2022NSFSC0203)。
文摘Dining lampblack as a source of atmospheric pollution,urban residents had to spend a lot of economic costs all year round to solve its impact.However,traditional treatment methods often carry the risk of secondary pollution.The use of phase change absorption solvent(PCAS)controlled by CO_(2)can effectively absorb the oily components in dining lampblack,and smoothly avoid the generation of secondary pollutants and squandering of resources.The reversibility of PCASs under CO_(2)control was explained by pH changes and macroscopic visualizations.The absorption effects of favorable absorbents and PCASs on dining lampblack were compared and analyzed.The fatty acid(FA)in the oil absorption mixture was desorbed by interacting with D230.The results of GC/MS analysis on the oil components separated by desorption showed that the desorption of PCASs was effective for these refractory oil components.FAs can be enriched and applied to the subsequent dining lampblack treatment link to realize the waste recycling.In addition,the absorption and desorption of oily components by PCASs were combined with the CO_(2)-controlled phase transformation of PCASs itself to achieve the absorption circulation of treating dining lampblack by using PCASs.
文摘Chinese and Western diet culture has great differences.This paper analysed the differences of Chinese and Western dining etiquette,dietary concept,dietary content and the reasons and the impact for the differences.It aims to help fully understand the different culture between China and the west,the hinder between cross-cultural communication and effectively foster people’s adaptability while doing cross-cultural communication and prevent social conflict caused by cultural differences the two