目的:调查校园半封闭环境下体育锻炼与高校学生紧张、愤怒、疲劳、抑郁、精力、慌乱、自我感等7项心境水平的相关情况,为高校应对公共卫生突发事件、加强学生心理建设提供科学依据。方法:2020年9月10~14日向上海中医药大学、南京体育学...目的:调查校园半封闭环境下体育锻炼与高校学生紧张、愤怒、疲劳、抑郁、精力、慌乱、自我感等7项心境水平的相关情况,为高校应对公共卫生突发事件、加强学生心理建设提供科学依据。方法:2020年9月10~14日向上海中医药大学、南京体育学院、上海师范大学天华学院3所高校18~28岁的在校大学生、研究生共1023人发放自定义问卷及简明心境量表(brief profile of mood states,BPOMS),其中有效问卷1006份,回收率约为98.3%。结果:被调查者简明心境量表得分为:紧张(12.83±4.96)分、愤怒(14.00±6.16)分、疲劳(10.54±4.31)分、抑郁(12.22±5.23)分、精力(16.92±4.99)分、慌乱(10.55±4.15)分、自我感(12.88±3.76)分,其中有73.4%、83.1%的同学出现精力下降和自我感缺失等消极情绪表达;每周进行3次以上运动的同学疲劳、抑郁得分均低于不运动或每周进行1~2次运动的同学(P<0.05);所有运动的同学,其精力及自我感得分均高于不运动的同学(P<0.05);根据二元Logistic回归分析显示,精力下降(OR=0.81,95%CI=0.70~0.95)、自我感缺失(OR=0.80,95%CI=0.67~0.96)与高运动频率呈负相关,长运动时间也与精力下降(OR=0.75,95%CI=0.60~0.92)、自我感缺失(OR=0.70,95%CI=0.55~0.90)呈负相关。结论:校园半封闭期间体育锻炼能有效调节高校学生的心理状态,建议高校鼓励并宣传学生在校学习生活期间进行每周3次以上的体育锻炼。展开更多
Variations in physical-chemical factors, species composition, abundance and biomass of nano-and micro-phytoplankton assemblages, as well as their responses to environmental factors, were investigated over a complete c...Variations in physical-chemical factors, species composition, abundance and biomass of nano-and micro-phytoplankton assemblages, as well as their responses to environmental factors, were investigated over a complete cycle (6 months) in a semi-enclosed shrimp-farming pond near Qingdao, northern China. The aim was to establish the temporal patterns of phytoplankton communities and to evaluate protists as suitable bioindicators to water quality in mariculture systems. A total of 34 taxa with nine dominant species were identified, belonging to six taxonomic groups (dinoflagellates, diatoms, cryptophyceans, chlorophyceans, euglenophyceans and chrysophyceans). A single peak of protist abundance occurred in October, mainly due to chlorophyceans, diatoms and chrysophyceans. Two biomass peaks in July and October were primarily due to dinoflagellates and diatoms. Temporal patterns of the phytoplankton communities significantly correlated with the changes in nutrients, temperature and pH, especially phosphate, either alone or in combination with NO3-N and NH3-N. Species diversity, evenness and richness indices were clearly correlated with water temperature and/or salinity, whereas the biomass/abundance ratio showed a significant correlation with NO3-N. The results suggest that phytoplankton are potentially useful bioindicators to water quality in semi-enclosed mariculture systems.展开更多
文摘目的:调查校园半封闭环境下体育锻炼与高校学生紧张、愤怒、疲劳、抑郁、精力、慌乱、自我感等7项心境水平的相关情况,为高校应对公共卫生突发事件、加强学生心理建设提供科学依据。方法:2020年9月10~14日向上海中医药大学、南京体育学院、上海师范大学天华学院3所高校18~28岁的在校大学生、研究生共1023人发放自定义问卷及简明心境量表(brief profile of mood states,BPOMS),其中有效问卷1006份,回收率约为98.3%。结果:被调查者简明心境量表得分为:紧张(12.83±4.96)分、愤怒(14.00±6.16)分、疲劳(10.54±4.31)分、抑郁(12.22±5.23)分、精力(16.92±4.99)分、慌乱(10.55±4.15)分、自我感(12.88±3.76)分,其中有73.4%、83.1%的同学出现精力下降和自我感缺失等消极情绪表达;每周进行3次以上运动的同学疲劳、抑郁得分均低于不运动或每周进行1~2次运动的同学(P<0.05);所有运动的同学,其精力及自我感得分均高于不运动的同学(P<0.05);根据二元Logistic回归分析显示,精力下降(OR=0.81,95%CI=0.70~0.95)、自我感缺失(OR=0.80,95%CI=0.67~0.96)与高运动频率呈负相关,长运动时间也与精力下降(OR=0.75,95%CI=0.60~0.92)、自我感缺失(OR=0.70,95%CI=0.55~0.90)呈负相关。结论:校园半封闭期间体育锻炼能有效调节高校学生的心理状态,建议高校鼓励并宣传学生在校学习生活期间进行每周3次以上的体育锻炼。
基金Supported by the National Natural Science Foundation of China (Nos. 40976075, 30700069),a post-doctoral fellowship awarded to XU Henglong by Inha Universitya grant from the Center of Excellence in Biodiversity Research, King Saud University and the 111 Project of China (No. B08049)
文摘Variations in physical-chemical factors, species composition, abundance and biomass of nano-and micro-phytoplankton assemblages, as well as their responses to environmental factors, were investigated over a complete cycle (6 months) in a semi-enclosed shrimp-farming pond near Qingdao, northern China. The aim was to establish the temporal patterns of phytoplankton communities and to evaluate protists as suitable bioindicators to water quality in mariculture systems. A total of 34 taxa with nine dominant species were identified, belonging to six taxonomic groups (dinoflagellates, diatoms, cryptophyceans, chlorophyceans, euglenophyceans and chrysophyceans). A single peak of protist abundance occurred in October, mainly due to chlorophyceans, diatoms and chrysophyceans. Two biomass peaks in July and October were primarily due to dinoflagellates and diatoms. Temporal patterns of the phytoplankton communities significantly correlated with the changes in nutrients, temperature and pH, especially phosphate, either alone or in combination with NO3-N and NH3-N. Species diversity, evenness and richness indices were clearly correlated with water temperature and/or salinity, whereas the biomass/abundance ratio showed a significant correlation with NO3-N. The results suggest that phytoplankton are potentially useful bioindicators to water quality in semi-enclosed mariculture systems.
