检索结果-南通市图书馆

体验式教学在本科护理专业生命教育课程中的应用

在线全文

学校读者我要写书评

暂无评论

中华护理教育 2024年第6期21卷 662-668页

作者：李爽刘霖陈如男赵新爽张蕾蓝月晨储静中国人民解放军海军军医大学上海市200433 急救与创伤研究教育部重点实验室海口市571199

目的探讨体验式教学在本科护理专业生命教育课程中的应用效果。方法明确将体验式教学应用于本科护理专业生命教育课程的教学设计,主要步骤包括明确教学目标,确定教学主题、内容与体验式教学活动,打造教学资源库,基于Kolb学习循环理论设... 详细信息

目的探讨体验式教学在本科护理专业生命教育课程中的应用效果。方法明确将体验式教学应用于本科护理专业生命教育课程的教学设计,主要步骤包括明确教学目标,确定教学主题、内容与体验式教学活动,打造教学资源库,基于Kolb学习循环理论设计教学实施方案。于2023年9月—12月,对某校选修“人生环游记·体验式生命教育”的32名护理本科生实施体验式教学。课程开始前、结束后采用大学生生命意义感量表对32名护理本科生的生命意义感进行测评;课程结束后分析其反思日记内容,并通过自行编制的课程认可度调查问卷了解其对课程的认可度。结果课程结束后,护理本科生的生命意义感总得分及各维度得分均高于课程开始前(P<0.001)。根据反思日记内容提炼出3个主题,即体会到生命的意义;感受到了人生的无常,珍惜生命;积极面对困境,敬畏生命。护理本科生对课程的认可度评分为25(24,25)分。结论将体验式教学应用于本科护理专业生命教育课程中具有可行性,有效增强了护理本科生的生命意义感及对生命的感知力,且课程获得了护理本科生的认可。

关键词：护理本科生生命教育 Kolb学习循环理论体验式教学

宣肺清络方对肺炎支原体肺炎痉挛性咳嗽大鼠肺组织病理学及炎性因子的影响

在线全文

学校读者我要写书评

暂无评论

天津中医药 2024年第7期41卷 893-897页

作者：孙越臣张琪刘薇薇李亚东天津中医药大学第二附属医院天津300143

[目的]探讨宣肺清络方对肺炎支原体肺炎(MPP)痉挛性咳嗽大鼠肺组织病理学及炎症因子的影响。[方法] 60只大鼠随机分为空白组、肺炎支原体肺炎组、模型组、阿奇霉素组、宣肺清络组、宣肺清络+阿奇霉素组,共计6组。采用肺炎支原体培养液滴... 详细信息

[目的]探讨宣肺清络方对肺炎支原体肺炎(MPP)痉挛性咳嗽大鼠肺组织病理学及炎症因子的影响。[方法] 60只大鼠随机分为空白组、肺炎支原体肺炎组、模型组、阿奇霉素组、宣肺清络组、宣肺清络+阿奇霉素组,共计6组。采用肺炎支原体培养液滴鼻+烟熏法+辣椒素溶液雾化建立肺炎支原体肺炎感染后痉挛性咳嗽大鼠模型,14 d造模成功后各组大鼠给予相应药物灌胃,连续治疗7 d后检测各组大鼠血清白细胞介素-6(IL-6)、白细胞介素-8(IL-8)、肿瘤坏死因子-α(TNF-α)水平及观察各组大鼠肺组织病理改变。[结果]与正常组比较,肺炎支原体肺炎组、模型组血清中IL-6、IL-8、TNF-α含量表达增高,差异有统计学意义(P0.05)。肺组织病理学显示,各治疗组组织病理改变较肺炎支原体肺炎组及模型组均有不同程度改善。[结论]宣肺清络方可以减轻肺组织结构损害,减少间质内炎症细胞浸润,推测其机制可能与抑制血清炎性因子IL-6、IL-8、TNF-α含量有关。

关键词：肺炎支原体肺炎宣肺清络方炎症因子

肺炎支原体肺炎感染后痉咳大鼠模型的建立及研究

在线全文

学校读者我要写书评

暂无评论

中医儿科杂志 2024年第4期20卷 4-7页

作者：孙越臣张琪刘薇薇李亚东天津中医药大学第二附属医院儿科天津300143

目的探讨采用“肺炎支原体培养液滴鼻+烟熏法+辣椒素溶液雾化”建立肺炎支原体肺炎(mycoplasma pneumoniae pneumonia,MPP)感染后痉咳大鼠模型的可能性。方法40只SPF级雄性Wistar大鼠随机分为空白组、MPP组、烟熏组、MPP痉咳组,采用“... 详细信息

目的探讨采用“肺炎支原体培养液滴鼻+烟熏法+辣椒素溶液雾化”建立肺炎支原体肺炎(mycoplasma pneumoniae pneumonia,MPP)感染后痉咳大鼠模型的可能性。方法40只SPF级雄性Wistar大鼠随机分为空白组、MPP组、烟熏组、MPP痉咳组,采用“肺炎支原体培养液滴鼻+烟熏法+辣椒素溶液雾化”建立MPP感染后痉咳大鼠模型,观测并记录各组大鼠一般行为学表现、咳嗽次数、大鼠支气管肺泡灌洗液(bronchoalveolar lavage fluid,BALF)中白细胞总数,观察肺组织病理学改变情况。结果实验过程中,空白组大鼠行为表现正常。随着烟熏天数的增加,各模型组大鼠表现为精神萎靡不振,呼吸声嘶哑,个别大鼠出现间断性咳嗽等经典表现。辣椒素溶液雾化吸入激发后,各模型组大鼠出现明显咳嗽症状,表现为颈部向前、口张开、耳朵战栗等。与空白组比较,MPP痉咳组大鼠咳嗽次数明显增多,差异有统计学意义(P0.05)。与空白组比较,MPP组、烟熏组、MPP痉咳组大鼠BALF中白细胞总数均显著升高,差异有统计学意义(P0.05)。结论采用“肺炎支原体培养液滴鼻+烟熏法+辣椒素溶液雾化”建立MPP感染后痉咳大鼠模型的方法切实可行。

关键词：肺炎支原体肺炎痉咳大鼠模型实验研究

Developing Prototype Simulants for Surface Materials and Morphology of Near Earth Asteroid 2016 HO3

在线全文

学校读者我要写书评

暂无评论

Space(Science & Technology) 2021年第1期2021卷 50-55页

作者： Xiaojing Zhang yuechen Luo Yuan Xiao Deyun liu Fan Guo Qian Guo Qian Xuesen Laboratory of Space Technology China Academy of Space TechnologyBeijing 100029China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Beijing Spacecraft Manufacturing Factory Co. Ltd.Beijing 100094China Beijing Institute of Space System Engineering Beijing 100094China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China

There are a variety of applications for asteroid simulants in asteroid studies for science advances as well as technology *** specific purpose,it usually requires purpose-specialized *** this study,we designed and developed a set of prototype simulants as S-type asteroid surface materials analogue based on H,L,and LL ordinary chondrites’mineralogy and terrestrial observations of near-earth asteroid 2016 HO3,which is the Chinese sample return mission *** simulants are able to simulate morphology and reflectance characteristics of asteroid(469219)2016 HO3 and,thus,to be used for engineering evaluation of the optical navigation system and the sampling device of the spacecraft during the mission ***,these prototype simulants are easily to modify to reflect new findings on the asteroid surface when the spacecraft makes proximate observations.

关键词： Earth terrestrial return

Evaluation on the human settlements environment suitability in the Three Gorges Reservoir Area of Chongqing based on RS and GIS

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geographical Sciences 2011年第2期21卷 346-358页

作者： LI yuechen ColLege of Geography and Tourism Chongqing Normal University Chongqing 400047 China Key Laboratory of GIS Application Chongqing Municipal Education Commission Chongqing 400047 China

To explore geographical differences in quantitative characteristics and spatial pattern of human settlements environmental suitability （HSES） in the Three Gorges Reservoir Area （TGRA）, terrain, climate, hydrology, vegetation and other natural factors were selected to build the livable environmental evaluation, and the quantitative analysis was conducted through Remote Sensing（RS） and Geographic Informational System （GIS） to reveal geo- graphical characteristics and spatial patterns of HSES. The results are obtained as follows：（1） inhabitants of the TGRA of Chongqing are concentrated in the area with moderate *** HSES, which is 78% of the total population distributed in 48% of the study area; （2） the HSES is closely related to the terrain, and it forms an arc-banded spatial succession pattern： relatively low in the northeast and the southeast while comparatively high in the west and the south; （3） large numbers of people are distributed in the area with low suitability （with higher population density than the average of the western China）, but economic development level in these areas is quite low. Moreover, these areas are ecological sensitive and fragile, many kinds of eco-environmental problems have been caused by human activities. Therefore, population migration and layout are reasonable options for the development of these areas.

关键词： Three Gorges Reservoir Area of Chongqing human settlements environment suitability GIS RS

我国中东部地区城乡(郊)地面O_(3)和VOCs的联合在线观测研究

在线全文

学校读者我要写书评

暂无评论

环境科学研究 2023年第10期36卷 1857-1869页

作者：王婉高健李红张玉洁车飞朱玉姣薛丽坤刘玥晨吴志军牟玉静徐小娟董薇段玉森周春艳中国环境科学研究院环境基准与风险评估国家重点实验室北京100012 山东大学环境研究院山东青岛266237 北京大学环境科学与工程学院环境模拟与污染控制国家重点联合实验室北京100871 中国科学院生态环境研究中心大气环境与污染控制实验室北京100085 中国科学院大气物理研究所中国生态系统研究网络大气分中心北京100191 上海市环境监测中心国家环境保护长三角区域上海淀山湖科学观测研究站上海200235 生态环境部卫星环境应用中心北京100094

针对快速工业化和城镇化带来的新形势下的环境问题,2021年6−9月国家大气污染防治攻关联合中心同步开展了4组(北京市、保定市、廊坊市和上海市)城乡(郊)臭氧(O_(3))和大气挥发性有机物(VOCs)的在线观测与比对研究.结果表明:①在我国O_(3... 详细信息

针对快速工业化和城镇化带来的新形势下的环境问题,2021年6−9月国家大气污染防治攻关联合中心同步开展了4组(北京市、保定市、廊坊市和上海市)城乡(郊)臭氧(O_(3))和大气挥发性有机物(VOCs)的在线观测与比对研究.结果表明:①在我国O_(3)污染较严重的中东部地区,以往“郊乡地区O_(3)浓度明显高于城区”的O_(3)污染特征正在改变,3个北方城市(北京市、保定市和廊坊市)的城区O_(3)浓度不同程度地高于其邻近的郊乡地区,上海市则呈现城郊趋同的态势.②这4组城乡(郊)之间VOCs浓度差异较小,VOCs组成中均为烷烃占比最高,在3个北方城市(北京市、保定市和廊坊市)其占比在70%左右,而上海市则在60%左右.③对O_(3)生成潜势(OFP)贡献较大的VOCs类别主要为芳香烃和烯烃,对OFP贡献较大的VOCs物种主要为乙烯、间/对-二甲苯、甲苯和异戊二烯等.④O_(3)生成敏感性分析(EKMA曲线)表明,北京市城郊、保定市城乡和上海市城区为VOCs控制区,其他城乡(郊)则呈现VOCs和氮氧化物(NOx)协同控制的特征.我国中东部85个城市中,卫星反演获得的甲醛与二氧化氮柱浓度比值在2018−2021年呈下降趋势,说明我国中东部郊乡地区O_(3)生成敏感性向VOCs控制区转变的现象普遍存在.研究显示,我国中东部地区“O_(3)城乡差异”较以往已发生深刻变化,无论在O_(3)的浓度水平、生成敏感性及其前体物来源和空间分布等方面都呈现出“趋同”之势.

关键词： O_(3)生成敏感性城乡差异 O_(3)生成潜势(OFP) VOCs 我国中东部地区

Effects of nitrogen fertilizer on root-shoot characteristics,grain yield and nitrogen use efficiency of different maize varieties in North China Plain

在线全文

学校读者我要写书评

暂无评论

International Journal of Agricultural and Biological Engineering 2022年第5期15卷 132-140页

作者： Xiangling Li liu Pan Rui Wang Yiping Zuo Jian Wang Jinling Han yuechen Zhang Baozhong Yin College of Agronomy and Biotechnology Hebei Normal University of Science&Technology/Hebei Key Laboratory of Crop Stress BiologyQinhuangdao 066004HebeiChina College of Agronomy Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and RegulationBaoding 071001HebeiChina College of Plant Protection Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and RegulationBaoding 071001HebeiChina

Excessive nitrogen(N)fertilizer application in crop production has resulted in a series of environmental issues in North China Plain(NCP).Breeding N-efficient maize varieties is one of the effective strategies to improve the N use efficiency of maize and reduce environmental *** study designed an experiment for two maize varieties(‘Xian-Yu 335’[XY335]and‘Hua-Nong 138’[HN138])with three N-level treatments(0 kg/hm^(2),180 kg/hm^(2),300 kg/hm^(2),i.e.N0,N180,N300).The aim of the study was to determine the response characteristics of maize canopy structure,root morphology,and anatomical structure,as well as N uptake and utilization of N *** showed that grain yield,N use efficiency,and N harvest index of XY335 were higher 5.20%-13.68%,11.86%-19.11%,and 6.07%-3.33%than those of HN138,*** with HN138,XY335 had a higher leaf area index and photosynthetic nitrogen-use *** root length,root length density,root absorption area,root absorption area,and root active absorption area of XY335 in each period were higher than that of *** proportion of RCA of XY335 was significantly higher than that of HN138,which was 14.64%higher on *** the future breeding process,the high N and low N double-high-efficiency varieties should pay more attention to the improvement of root cortex aeration tissue.

关键词： maize root nitrogen accumulation nitrogen use efficiency yield

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

我国玉米秸秆的综合利用现状分析及对策建议

食品工业 2024年第7期45卷 207-211页

作者：刘晓龙杨跃臣姜铄于新蕊郑东阳陈红吉林农业大学食品科学与工程学院长春130118 吉林农业大学资源与环境学院长春130118

玉米作为我国主要的粮食作物之一,其在产生大量优质粮食的同时也不可避免地产生了玉米秸秆等副产物。目前,我国对于玉米秸秆的加工利用实际效果并不理想,现在主要的处理办法依然是焚烧和露天堆放,只有少部分的玉米秸秆得到了充分的利用... 详细信息

玉米作为我国主要的粮食作物之一,其在产生大量优质粮食的同时也不可避免地产生了玉米秸秆等副产物。目前,我国对于玉米秸秆的加工利用实际效果并不理想,现在主要的处理办法依然是焚烧和露天堆放,只有少部分的玉米秸秆得到了充分的利用,这种情况导致了我国玉米秸秆利用率比较低。文章对玉米秸秆在能源利用、畜牧养殖、土壤改良、工业原料、生物化学品等方面的利用现状进行了综述,并提出了一些相关的解决方法与建议,旨在为进一步推动玉米秸秆的综合利用提供参考。

关键词：玉米秸秆综合利用存在问题解决对策

Laboratory Test on Long-Term Deterioration of Cement Soil in Seawater Environment

在线全文

学校读者我要写书评

暂无评论

Transactions of Tianjin University 2016年第2期22卷 132-138页

作者：杨俊杰闫楠刘强张玥宸 College of Environmental Science and Engineering Ocean University of China Key Laboratory of Marine Environment and Ecology Ministry of Education College of Earth Science and Engineering Shandong University of Science and Technology HKCTS Real Estate Co. Ltd.

Laboratory tests were conducted to study the effects of curing time, cement ratio and seawater pressure on cement soil deterioration formed at simulative marine soft clay sites. Deterioration depth was determined on the basis of characteristics of penetration resistance and penetration depth curves, and the deterioration depth of cement soil with the cement ratio of 7%, reached 31.8 mm after 720 d. Results of research indicated that deterioration extended quickly under seawater environment and the deterioration depth increased with the prolonging curing time. In addition, the water pressure could speed up deterioration. With the increase of cement content, the strength of cement soil increased obviously. At the same time, the deterioration depth decreased significantly. The concentration of calcium ion in the cement stabilized soil increased with the increase of depth, while that of magnesium ion gradually decreased. The variations were consistent with energy dispersive spectrometer(EDS)analysis results, and the calcium concentration with depth was in a good consistency with strength distribution at long term. The results showed that the deterioration became more serious with the curing time, and it was related to calcium leaching.

关键词： cement soil marine clay deterioration depth micro-cone penetration test seawater environment