期刊文献+
共找到205篇文章
< 1 2 11 >
每页显示 20 50 100
以研带教,以教促学:以学生科创为纽带的科研与教学的协调与融合研究 被引量:4
1
作者 谭娜 潘瑞姣 《大学(研究与管理)》 2023年第4期165-168,共4页
文章基于协调科研与教学关系的重要意义,在教学实践与科研探索过程中,不断思考用何种途径有效衔接科研与教学,以实现以研带教,以教促学。实践发现,将学生科创作为纽带,是科研与教学协调发展并融合互促的有效手段。另外,文章也进一步探... 文章基于协调科研与教学关系的重要意义,在教学实践与科研探索过程中,不断思考用何种途径有效衔接科研与教学,以实现以研带教,以教促学。实践发现,将学生科创作为纽带,是科研与教学协调发展并融合互促的有效手段。另外,文章也进一步探讨了以学生科创为纽带链接科研与教学中可能存在一些问题,并对科研、教学与学生科创的融合互动提出了改进措施与建议。 展开更多
关键词 学生科 科研与教学 三维一体
下载PDF
高职院校与中小企业合作模式下学生创新教育探索与实践 被引量:2
2
作者 李云峰 《辽宁省交通高等专科学校学报》 2020年第1期61-64,共4页
本文围绕辽宁省高职院校学生和中小企业创新的现状,开展高职院校与中小企业合作模式下学生创新机制研究,寻求提升中小型企业创新积极性和主动性的途径,构建高职院校与中小型企业创新的合作模式,将学生创新教育与中小型企业创新发展紧密... 本文围绕辽宁省高职院校学生和中小企业创新的现状,开展高职院校与中小企业合作模式下学生创新机制研究,寻求提升中小型企业创新积极性和主动性的途径,构建高职院校与中小型企业创新的合作模式,将学生创新教育与中小型企业创新发展紧密融合,建立一种有效的合作创新机制,从而有效解决学生有创新意识和热情而缺少工程实例素材和启动资金,企业有创新的意向但创新能力不足等系列问题。 展开更多
关键词 校企合作 创新能力 创新机制 学生科创团队 高职院校
下载PDF
德育为首 教学为主 育人为本 被引量:1
3
作者 暴杰 闫桂莲 《承德职业学院学报》 2006年第1期77-78,共2页
关键词 班主任工作 学校 团委 育人工作 德育为首 学生科 教育管理工作
下载PDF
Morphology of Pyrocoelia pygidialis Pic (Coleoptera:Lampyridae) with Notes on Its Biology 被引量:4
4
作者 李学燕 解萌 +1 位作者 董平轩 梁醒财 《Entomotaxonomia》 CSCD 北大核心 2008年第4期300-308,共9页
Morphology of different development stages from egg, larva, pupa to adult (male and female) of the firefly, Pyrocoelia pygidialis Pic, was described in details. Some biological habits were noted according to the rec... Morphology of different development stages from egg, larva, pupa to adult (male and female) of the firefly, Pyrocoelia pygidialis Pic, was described in details. Some biological habits were noted according to the records of field collection and observation, with references to the rearing in the laboratory. With weakly luminous egg, larva, pupa and female adult, and much weaker luminous male adult only when disturbed, P pygidialis Pic is considered as a diurnal firefly, and chemical signal, instead of light signal, is possibly its dominant means of male-female recognition. 展开更多
关键词 COLEOPTERA LAMPYRIDAE Pyrocoelia MORPHOLOGY BIOLOGY YUNNAN
下载PDF
Advancement of Structural Botany in the Past Fifty Years in China 被引量:1
5
作者 崔克明 胡正海 《Acta Botanica Sinica》 CSCD 2002年第9期1043-1067,共25页
Structural botany, being derived from plant anatomy, has been considered as an important branch of botany, both in concept and practice. In this paper, a review concerning the evolutionary trends of development from p... Structural botany, being derived from plant anatomy, has been considered as an important branch of botany, both in concept and practice. In this paper, a review concerning the evolutionary trends of development from plant developmental anatomy to plant developmental biology, plant comparative anatomy to plant systematic biology and plant ecological anatomy to plant environmental biology during the past 50 years in China is addressed and their potential development and usefulness in the near future were largely discussed. 展开更多
关键词 plant anatomy structural botany developmental anatomy comparative anatomy ecological anatomy
下载PDF
Discussion on Action and Potential of Fenlong Megascience in the Symbiosis between Human and Nature 被引量:4
6
作者 韦本辉 申章佑 +6 位作者 周佳 周灵芝 李艳英 劳承英 甘秀芹 胡泊 韦元波 《Agricultural Science & Technology》 CAS 2017年第12期2303-2308,2311,共7页
The fourth new farming model Fenlong is identified as megascience for the first time. Fenlong can be directly applied to farming of farmland, remoulding of mortar black soil and saline alkali land and development of d... The fourth new farming model Fenlong is identified as megascience for the first time. Fenlong can be directly applied to farming of farmland, remoulding of mortar black soil and saline alkali land and development of degraded grassland. Deep loosening can create huge soil reservoirs, reduce fertilization, promote indi- rectly the improvement of river water fisheries and water sources and the upgrading of shaping and hydropower industry, thus making a new round of mobilization and pooling of natural resources. As a result, the nature is able to produce good food needed by human, the spatial dimension of the land is increased, the natural pre- cipitation storage is increased, the flood and drought disasters are reduced, the eco-environment is improved, and the economic benefits are increased. Fenlong is not restricted to global application by ecological region and crop variety and is not subject to the time-space constraints for a hundred thousand years. On the basis of utilizing the heaven and earth resources, it brings about a huge effect of mega- science. Compare with traditional farming, the depth under the mode of Fenlong is increased by 2-3 times, the contents of nutrient, water, oxygen and microorganism in the soil are increased by 10%-200%, the content of pale salt is increased by 20%-40%, the temperature is increased by 2-4 ~C, and the photosynthetic efficiency of crops is improved by 10%. Under the cultivation mode of Fenlong, the yield of crop applied with no fertilizers is increased by more than 10%, crop yield is still in- creased by more than 5% when the application amount of chemical fertilizer is re- duced by 10%-20%. Under the farming mode of Fenlong combined with no in- crease in fertilization, the crop yield, crop quality, farming efficiency, natural precipi- tation storage and air humidity are increased by 10%-50%, 5%, 15%, 100% and 5%, respectively, and the emissions of methane and other gases are reduced by more than 5%. Even in mortar black soil, saline alkali land and degraded grassland, the yield is still increased by 15%-50%. These improvement effects can last for many years, helping achieve the real harmonious coexistence between human and nature. 展开更多
关键词 Fenlong Megascience Autogeneration Yield and quality improvement Water conservation ecology Harmonious coexistence between human and nature
下载PDF
A new species in the genus Coptotettix(Orthoptera: Tetrigidae: Tetriginae) from northern Thailand
7
作者 查岭生 文庭池 +1 位作者 Saranyaphat BOONMEE Prapassorn Damrongkool EUNGWANICHAYAPANT 《Entomotaxonomia》 CSCD 2016年第3期169-174,共6页
Coptotettix acutiangulus Zha sp. nov. from northern Thailand is described and illustrated with photographs. Morphological differences with a similar species C. annandalei are described in detail. C. acutiangulus Zha s... Coptotettix acutiangulus Zha sp. nov. from northern Thailand is described and illustrated with photographs. Morphological differences with a similar species C. annandalei are described in detail. C. acutiangulus Zha sp. nov. may be potentially distributed in Nepal. A brief discussion of the ecology and habitat of C. acutiangulus is given. 展开更多
关键词 TETRIGOIDEA ecology HABITAT pygmy grasshopper
下载PDF
农村初中办学模式的若干思考
8
作者 滕开华 《社科与经济信息》 2001年第8期131-133,共3页
我国早在1996年3月八届人大四次会议中就以法律条文形式提出了"素质教育"这一概念,给中国教育指明了方向.1999年6月15日第三次全国教育工作会议的召开,标志着我国全面推进"素质教育"进入了新阶段.但是,当前农村办... 我国早在1996年3月八届人大四次会议中就以法律条文形式提出了"素质教育"这一概念,给中国教育指明了方向.1999年6月15日第三次全国教育工作会议的召开,标志着我国全面推进"素质教育"进入了新阶段.但是,当前农村办学模式却还不同程度地存在着办学方向不明确,教学评估标准单一,学生素质不能适应农村经济发展要求弊端.本人从事教育工作多年,将以农村初中义务教育调查为基础,对有关优化农村初中办学模式,全面实施素质教育的若干问题谈谈自己看法. 展开更多
关键词 农村初中 实施素质教育 办学模式 教育与生产劳动相结合 劳技课 学生科
下载PDF
高校“本硕一体化”科创实践育人平台构建与探索——以广东技术师范大学自动化学院为例
9
作者 王雯殊 《中国科技期刊数据库 科研》 2023年第11期21-24,共4页
研究生教育是国家培养高层次创新人才的重要途径,是应对全球人才竞争的基础布局,是实施科教兴国战略,强化现代化人才支撑的重要基石。当前高校研究生教育存在重研究、轻实践的问题,文章创新性提出“本硕一体化”科创实践育人平台,在不... 研究生教育是国家培养高层次创新人才的重要途径,是应对全球人才竞争的基础布局,是实施科教兴国战略,强化现代化人才支撑的重要基石。当前高校研究生教育存在重研究、轻实践的问题,文章创新性提出“本硕一体化”科创实践育人平台,在不断的探索和实践中初见成效,研究生的科研能力、实践能力、管理能力普遍有所提高,在高校中具有一定的推广价值。 展开更多
关键词 本硕一体化 研究生教育 学生科 实践育人平台 实践能力
下载PDF
《技校生日常行业规范》教育的实践与探索
10
作者 杨文燕 《中国轻工教育》 2004年第1期15-17,共3页
  一、以德为本,规范育人   教育是一种有目的、有组织、有计划、系统的育人活动.对职业技术学校学生的教育就是通过有组织、有计划的系统职业技术教育活动,使他们达到应有的人才规格.   ……
关键词 技校生 职业技术学校 技工学校 中等专业学校 社会行为规范 学生科
下载PDF
高三趣事
11
作者 阿落 《课堂内外(高中版)(A版)》 2007年第3期20-20,共1页
对于时间的感叹,无非是什么时光流逝时光一去不复返和一眨眼便多久多久等等之类简直快烂到掉渣的话语。算了,我们今天撇开这些废话,讲一些高三趣事。
关键词 学生科
下载PDF
Effects of 2,4-D and 6-BA on Callus Induction and Plantlet Regeneration from Mature Embryos of Hsien Rice 被引量:15
12
作者 苗春波 万志刚 孙丙耀 《Agricultural Science & Technology》 CAS 2009年第4期22-26,共5页
[ Objective] In order to study the effects of 2,4-D and 6-BA on callus cultivation from mature embryos of hsien rice. [ Method] 2,4-D and 6-BA were set at different concentrations in callus induction and differentiati... [ Objective] In order to study the effects of 2,4-D and 6-BA on callus cultivation from mature embryos of hsien rice. [ Method] 2,4-D and 6-BA were set at different concentrations in callus induction and differentiation mediums to study their effects on callus induction, seedling formation and regenerated seedlings rooting. [ Result] In the callus induction medium treated with 0.5 mg/L 2,4-D, the callus induction effects on the varieties like Jiayu 948, Yanghui 559, Yangxian 6547, Zhong'erruanzhan, Minghui 86, Guanghui 998 and Zunxian 3 were the best; If 0.2 mg/L 6-BA was added into the callus induction medium containing the optimum level of 2,4-D, there was no obvious effect on induction rate of callus, but the differentiation and seedling of callus were inhibited; If the concentration of 6-BA was reduced appropriately in the differentiation medium, the seedling rate of callus would be not only no decreased but increased, meanwhile the quality of regenerated plants would be improved. [ Conclusion] The study results provided some references for the reasonable uses of 2,4-D and 6-BA in callus culture of hsien rice. 展开更多
关键词 Hsien rice CALLUS 2 4-D 6-BA
下载PDF
A Comparative Study on the Quality Components Between Self Pollinated Seeds and Naturally Pollinated Seeds in Brassica napus L. in Sichuan Ecological Region 被引量:2
13
作者 张锦芳 蒲晓斌 +4 位作者 李浩杰 黄驰 李蒲 张谦 蒋梁材 《Agricultural Science & Technology》 CAS 2009年第1期19-21,80,共4页
[ Objective] This study was to reveal the differences in crude fat and glucosinolates between self pollinated seeds and naturally pollinated seeds in Brassica napus in sichuan ecological region.. [ Method] Near-infrar... [ Objective] This study was to reveal the differences in crude fat and glucosinolates between self pollinated seeds and naturally pollinated seeds in Brassica napus in sichuan ecological region.. [ Method] Near-infrared spectroscopy method (NIRS) was employed to measure the quality components in self pollinated seeds and naturally pollinated seeds of 861 shares of Brassica napus from Sichuan ecological region. And correlation analysis and regression analysis were conducted based on the experimental data via SPSS (statistics package for social science). [ Result] The contents of crude fat in the self pollinated seeds were commonly a higher than that in the naturally pollinated seeds at 0.01 significant level; while the contents of glucosinolates in the self pollinated seeds and the naturally pollinated seeds were insignificantly different. Both the correlation relationship and linear regression for the crude fat between the self pollinated seeds and naturally pollinated seeds reached the significant level. The regression equations for the contents of crude fat(y1 ) and glucosinolates( y2 ) in the naturally pollinated seeds and of crude fat( x1 ) and glucosinolates( x2 ) in self pollinated seeds were respectively determined to be y1 = 16.844 +0.614x1 and y2 = -0.620 + 1.017 x2. [ Conclusion] In Brassica napus breeding, crude fat in naturally pollinated seeds should be emphatically taken into account, meanwhile concurrently considering that in self pollinated seeds; while glucosinolates in both the self pollinated seeds and the naturally pollinated seeds must be simultaneously concerned. 展开更多
关键词 Brassica napus L. Self pollinated seeds Naturally pollinated seeds Content of crude fat Content of gluccsinolates Near-infrared spectroscopy method
下载PDF
Advances in Plant Science and Its Prospects
14
作者 许智宏 《Agricultural Science & Technology》 CAS 2011年第1期1-7,10,共8页
Focusing on the global food security and analyzing the challenges now confronting human being of global climate change,sustainable development of agriculture,energy and environment,plant scientists should take the soc... Focusing on the global food security and analyzing the challenges now confronting human being of global climate change,sustainable development of agriculture,energy and environment,plant scientists should take the social responsibility and play the role in solving the global problems like food security from the developmental status and potential of plant science and technology. Moreover,by working with agronomists, ecologists and environmental experts,plant scientists do provide novel ideas and technologies for developing low carbon agriculture,for breeding new crop varieties with high yield and quality and stress resistance,for developing new type of energy plants,for supplying healthy foods and drugs,reasonably using land and water resources,and for ameliorating environment,making better contribution to the sustainable development of the globe and human being ourselves. 展开更多
关键词 Plant science Food security BIOTECHNOLOGY TRANSGENE Medicinal plant Energy plant
下载PDF
Lessons learned from the past serving as a guide for the future---On a state harmonious development from Naipaurs novel A bend in the river
15
作者 马小强 陈容 《Sino-US English Teaching》 2009年第4期62-64,67,共4页
Naipaul's novel A bend in the river illustrates the social confusion and people's destitution and wasting time in African countries after their national independence. An important reason is the president's self-pub... Naipaul's novel A bend in the river illustrates the social confusion and people's destitution and wasting time in African countries after their national independence. An important reason is the president's self-publicity, tyrannical hess and destructiveness. Whereas the author's subjective suspicion is visible in democratic development of African countries. Indeed, in a country development, it is quite necessary to depend on its citizen, observing public feelings; controlling a state with science; benefiting citizen; utilizing resources; constructing homestead, intending creation with a harmonious and stable way. 展开更多
关键词 African countries social confusion people's destitution harmonious stableness scientific development
下载PDF
Current progress and future prospects in phylofloristics 被引量:8
16
作者 Rong Li Lishen Qian Hang Sun 《Plant Diversity》 SCIE CAS CSCD 2018年第4期141-146,共6页
The species composition of regional plant assemblages can in large part be explained by a long history of biogeographical and evolutionary events. Traditional attempts of floristic studies typically focus on the analy... The species composition of regional plant assemblages can in large part be explained by a long history of biogeographical and evolutionary events. Traditional attempts of floristic studies typically focus on the analyses of taxonomic composition, often ignoring the rich context that evolutionary history can provide. In 2014, Swenson and Umafia introduced the term 'phylofloristics' to define a phylogenetically enabled analysis of the species composition of regional floras. Integrating phylogenetic information into tradi- tional floristic analysis can provide a promising way to explore the ecological, biogeographic, and evolutionary processes that drive plant assemblies at multiple spatial scales. In this review, we sum- marize the current progress on the phylogenetic structure, spatial phylogenetic pattern, origin and diversification, phylogenetic regionalization of fioristic assemblages, and application of phylogenetic information in biodiversity conservation. These summaries highlight the importance of incorporating phylogenetic information to improve our understanding of floristic assembly from an evolutionary perspective. The review ends with a brief outlook on future challenges for phylofloristic studies, including generating a highly resolved species-level phylogenetic tree, compiling detailed and refined information regarding the geographic distribution of all plant life, extracting trait information from publications and herbarium specimens, and developing technological and methodological approaches for big data analysis. 展开更多
关键词 Big data BIOGEOGRAPHY ECOLOGY Evolution FLORA Mega-phylogeny
下载PDF
Eranno carrerai sp. nov., a new polychaete worm (Lumbrineridae) from coastal waters of China 被引量:3
17
作者 蔡文倩 李新正 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2011年第1期217-231,共15页
In this paper, a new polychaete species, Eranno carrerai sp. nov. from coastal areas of China, is described based on specimens deposited in the Marine Biological Museum of the Chinese Academy of Sciences, Qingdao, col... In this paper, a new polychaete species, Eranno carrerai sp. nov. from coastal areas of China, is described based on specimens deposited in the Marine Biological Museum of the Chinese Academy of Sciences, Qingdao, collected during 1957 to 1976 from the Yellow Sea, East China Sea and South China Sea at depths of 9–210 m. 展开更多
关键词 Armelida POLYCHAETA coastal waters China
下载PDF
New insights into the activation mechanism of store-operated calcium channels:roles of STIM and Orai 被引量:5
18
作者 Rui-wei GUO Lan HUANG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2008年第8期591-601,共11页
The activation of Ca2+ entry through store-operated channels by agonists that deplete Ca2+ from the endoplasmic reticulum (ER) is a ubiquitous signaling mechanism, the molecular basis of which has remained elusive for... The activation of Ca2+ entry through store-operated channels by agonists that deplete Ca2+ from the endoplasmic reticulum (ER) is a ubiquitous signaling mechanism, the molecular basis of which has remained elusive for the past two decades. Store-operated Ca2+-release-activated Ca2+ (CRAC) channels constitute the sole pathway for Ca2+ entry following antigen-receptor engagement. In a set of breakthrough studies over the past two years, stromal interaction molecule 1 (STIM1, the ER Ca2+ sensor) and Orai1 (a pore-forming subunit of the CRAC channel) have been identified. Here we review these recent studies and the insights they provide into the mechanism of store-operated Ca2+ channels (SOCCs). 展开更多
关键词 Store-operated Ca^2+ entry (SOCE) Stromal interaction molecule (STIM) ORAI
下载PDF
Generation and characterization of expressed sequence tags(ESTs) from coralloid root cDNA library of Cycas debaoensis 被引量:1
19
作者 Yunhua Wang Nan Li +1 位作者 Ting Chen Yiqing Gong 《Plant Diversity》 SCIE CAS CSCD 2018年第5期245-252,共8页
A normalized full-length cDNA library was constructed from the coralloid roots of Cycas debaoensis by the DSN (duplex-specific nuclease) normalization method combined with the SMART (Switching Mechanism At 5' end ... A normalized full-length cDNA library was constructed from the coralloid roots of Cycas debaoensis by the DSN (duplex-specific nuclease) normalization method combined with the SMART (Switching Mechanism At 5' end of the RNA Transcript) technique. The titer of the original cDNA library was about 1.5 × 10^6 cfu·mL^-1 and the average insertion size was about 1 kb with a high recombination rate (97%). The 5011 high-quality expressed sequence tags (ESTs) were obtained from 5393 randomly picked cDNA clones. Clustering and assembly of ESTs resulted in 2984 unique sequences, consisting of 618 contigs and 2366 singlets. EST sequence annotation revealed that 2333 and 1901 unigenes were functionally anno- tated in the NCBI non-redundant database and Swiss-Prot protein database, respectively. Functional analysis demonstrated that 1495 (50.1%) unigenes were associated with 4082 Gene Ontology (GO) terms. A total of 847 unigenes were grouped into 22 Cluster of Orthologous Groups (COG) functional categories. Based on the EST dataset, 22 ESTs that encoded putative receptor-like protein kinase (RLK) genes were screened. Furthermore, a total of 94 simple sequence repeats (SSRs) were discovered, of which 20 loci were successfully amplified in C debaoensis. This study is the first EST analysis for the coralloid roots of C debaoensis and provides a valuable genomic resource for novel gene discovery, gene expression and comparative genomics, conservation and management studies as well as applications in C debaoensis and related cycad species. 展开更多
关键词 Cycas debaoensis Coralloid root cDNA library Expressed sequence tags Symbiosis and defense SSRS
下载PDF
Three dimensional finite element analysis of acetabulum loaded by static stress and its biomechanical significance 被引量:1
20
作者 苏佳灿 张本 +4 位作者 禹宝庆 张春才 陈学强 王保华 丁祖泉 《Journal of Medical Colleges of PLA(China)》 CAS 2005年第6期377-382,共6页
Objective:To explore the mechanical behavior of acetabulum loaded by static stress and provide the mechanical basis for clinical analysis and judgement on acetabular mechanical distribution and effect of static stress... Objective:To explore the mechanical behavior of acetabulum loaded by static stress and provide the mechanical basis for clinical analysis and judgement on acetabular mechanical distribution and effect of static stress.Methods:By means of computer simulation, acetabular three dimensional model was input into three dimensional finite element analysis software ANSYS7.0. The acetabular mechanical behavior was calculated and the main stress value, stress distribution and acetabular unit displacement in the direction of main stress were analyzed when anterior wall of acetabulum and acetabular crest were loaded by 1 000 N static stress. Results:When acetabular anterior wall loaded by X direction and Z direction composition force, the stress passed along 4 directions: (1)from acetabular anterior wall to pubic symphysis along superior branch of pubis firstly, (2)from acetabular anterior wall to cacroiliac joint along pelvic ring,(3)in the acetabulum,(4)from the suffered point to ischium. When acetabular crest loaded by X direction and Y direction composition force, the stress transmitted to 4 directions: (1)from acetabular crest to ilium firstly, (2)from suffered point to cacroiliac joint along pelvic ring,(3) in the acetabulum ,(4)along the pubic branch,but no stress transmitted to the ischium branch.Conclusion:Analyzing the stress distribution of acetabulum and units displacement when static stress loaded can provide internal fixation point for acetabular fracture treatment and help understand the stress distribution of acetabulum. 展开更多
关键词 ACETABULUM static stress stress analysis three dimensional finite element analysis
下载PDF
上一页 1 2 11 下一页 到第
使用帮助 返回顶部