校、企、生“三赢”的产学研合作机制探索与实践

校企合作培养是实现"卓越工程师"目标的重要途径。文章分析了我校校企全程合作实施"卓越计划"的校企生三方激励机制、产学研结合的培养模式、校企合作的主要环节及校企合作保障体系等方面采取的措施。该方案兼顾学生、学校与企业三方面的需求,以"强能力、保就业、促发展"为导向,依托校企合作共建的实习基地,采用"3+1"的培养模式及"1+3+1"课程教学体系,培养适合企业需求的卓越IT人才。该模式经过3年多的实践运行,学生的学习积极性、理论应用能力与动手能力迅速提高。计算机专业的教学效果得到了很好的改善。从学生高就业率及各方高满意度的调查证明我校的改革取得了一定的成效,为同类院校在人才培养方案改革提供参考。

任务驱动—导生制合作学习:提高高职项目课程教学质量的有效模式

项目导向、任务驱动型教学作为当前高职教育教学改革的主流模式。项目任务的设置要点及注意事项是:项目任务设计的真实性、分层性,与学生的职业生涯规划指导相结合,并注意任务有别于练习。导生制合作学习的实施要点是:要对学生进行异质分组、选拔合适的学生充当每组的导生、制定导生的工作制度并对他们进行培训。组内同学间要建立积极互依的关系;空间和座次的安排上要便于小组成员间面对面的交流和讨论;建立个体成绩责任制;教给学生一定的社交技能;给学生总结和反思小组合作的过程等。

“师-师、师-生”合作——英语实践教学模式刍议

商务英语谈判是一门实践性、专业性很强的课程。随着我国经济和对外贸易的迅猛发展,该课程的教学受到越来越多业内人士的关注和研究。笔者将以教学形式和教师角色的彻底转变为切入点,以商务英语谈判课程为例,探讨师-师、师-生合作在教学中如何实施及其效果,以期为英语实践教学的改革寻求新途径,开创新的研究思路。

高校体育教学中学生合作能力培养研究

在体育教学中发展学生的合作能力是一项非常重要的任务。本文主要结合笔者多年的一线教学经验，查阅相关文献，首先阐述了在高校体育教学中培养学生合作能力的意义，接着就如何在高校体育教学中培养学生合作能力进行研究分析，提出了几点应对策略，旨在培养学生的合作意识，提升学生的合作能力，进而促进高校体育教学质量的提高，供广大同仁参考借鉴。

医护生合作模拟演练在急诊护理护生带教中的应用效果

目的:探讨医护生合作模拟演练在急诊护理护生带教中的应用效果。方法:选择2018年8月至2021年3月我院急诊科实习护生135名。采用随机数字法,实验组68名护生采用医护生合作模拟演练带教方法,对照组67名护生采用传统带教,比较两组护生带教效果。结果:实验组护生理论操作考试得优率、护生教学满意度、患方对护生满意度、医师对护生满意度均显著高于对照组,其OR值分别为3.128、4.284、2.464、2.201(P均<0.05)。结论:在急诊科护理护生带教中,使用医护生合作模拟演练带教方法可有效提高急诊护理教学质量,提高急诊科护生、患方、医师对带教的满意度。

“以赛共学,合作共生”教学模式的研究——以高校广告实务课程为例

广告专业是学校与业界对接要求非常高的应用型专业,在产教融合、实践教学模式上都要求不断创新。文章提出“以赛共学,合作共生”的教学模式,并以广告专业实务课为例评估此模式的效果。“以赛共学,合作共生”教学模式不仅是对广告专业传统教学模式的改革创新,更大大激发了学生的自主学习兴趣,并将教师纳入了学习闭环。教师与学生共学、共生,提升了双方在专业方面的核心素养,促进学生在广告学科上全方位技能发展,也保证了教师在教学路上与时代并行,与学生同呼吸共成长。

高中历史课堂实施生本合作学习的研究

新时期,高中历史教学在培养学生历史知识与能力的同时,还应该重视学生学习过程与方法、情感态度与价值观的教导,使学生能实现全面进步。教师可以通过合作学习来打造生本课堂,将生本教学融入历史教学中,重视学生的主体地位,发挥学生的主导性作用,提高历史课堂教学效率,更好地完成课堂教学任务,

《新农药创制合成及生测技术国际合作研究项目》通过专家鉴定验收

浙江化工科技集团有限公司(浙江省化工研究院)《新农药创制合成及生测技术国际合作研究项目》通过专家鉴定验收。浙江省科技厅于2004年6月13日在杭州组织7位专家组成鉴定验收委员会对列入2002至2004年浙江省重大科技项目计划。

浅议初中英语生态课堂的构建

新课程改革催生着生态课堂的构建。作为英语教师的我们，应该尽力打造好每一堂的英语生态课，让学生们在“生本”“合作”“情境””开放”的课堂中尽情地汲取更多的知识，提高自身的素质，成为社会有用之才。

Advances in Photosynthetic Characteristics of Peanut

Peanut is an important oil crop and economic crop in China. In this pa- per, the status and advances of the factors affecting peanut photosynthesis, such as light intensity, temperature, carbon dioxide concentration, water deficit and fertility situation, the relationship between peanut photosynthetic rate and different cultivation system, and the relationship between peanut photosynthetic rate and varieties yield potential, were deeply reviewed, expecting to provide references for peanut variety breeding with high photosynthetic efficiency and high yield potential.

CHANGES OF ATMOSPHERIC CO_2, PHOTOSYNTHESIS OF THE GRASS LAYER AND SOIL CO_2 EVOLUTION IN A TYPICAL TEMPERATE DECIDUOUS FOREST STAND IN THE MOUNTAINOUS AREAS OF BEIJING

Middle-sized chambers (40cmx40cmx20 cm) and an infrared gas analyzer (IRGA) were used for the measurement of net photosynthesis of the grass layer and soil CO2 evolution, in Quercus liaotungensis Koidz. forest, which is a typical temperate forest ecosystem in the mountainous areas of Beijing. Changes of CO2 concentrations in both the atmosphere (2m above canopy) and the forest canopy (2m below the top of the canopy) together with those of net photosynthesis and soil CO2 evolution were also examined, in order to find the characteristics of CO2 exchange between the different components of the temperate forest ecosystem and the atmosphere. Atmospheric CO2 averaged (323+10) and (330+1) mol mol-1 respectively in summer and autumn. During the 24-hour measurements, large differences as much as -46 and -61 mol mol-1 respectively in the atmosphere and forest were found. Net photosynthesis of the grass layer in summer was (2. 59 9+ 1.05) mol CO2 m-2 S-1, two times of that in autumn, (1.31+0.39) mol CO2 s-1 In summer, there was much more CO2 evolved from soil than in autumn, averaging (5.18+0.75) mol CO2 m-2 s-1 and (1.96 + 0.57) (mol CO2 m-2 s-1, respectively. A significant correlation was found between soil CO2 evolution and ground temperature, with F =-0.864 2+0.310 1X,r=0.7164, P<0.001 (n=117). Both the minimal atmospheric CO2 level and the maximum net photosynthesis occurred around 14:00; and an increase in atmospheric CO2 and of soil CO2 evolution during night times were also found to be remarkable.

Effects of Short-term High Temperature Stress on the Photosynthesis of Potato in Different Growth Stages

[Objective] The aim was to study the effects of short-term high temperature stress on the photosynthesis of potato in different growth stages. [Method] Choosing powder potato named Longshu No.3 widely cultivated in Ningxia as test material,the changes of stomata conductance （Gs）,transpiration rate （Tr） and CO2 concentration difference between internal and external leaf chamber,net photosynthetic rate （Pn） and photosynthetic water use efficiency （WUE） in different growth stages under short-term high temperature were analyzed. [Result] During seedling stage,the hysteretic nature of net photosynthetic rate and CO2 concentration difference between internal and external leaf chamber of potato could be found under high temperature stress,while the change trends of stomata conductance and transpiration rate under high temperature stress were consistent to that at normal temperature,but stomata conductance and transpiration rate were higher than those at normal temperature,and CO2 concentration difference between internal and external leaf chamber affected net photosynthetic rate most obviously. During branching stage,the change trends of net photosynthetic rate,CO2 concentration difference between internal and external leaf chamber,stomata conductance and transpiration rate under high temperature stress and normal temperature were similar,but they changed abruptly and reached peak value at noon under high temperature stress,while there existed consistent variation of water use efficiency under high temperature stress and at normal temperature,and CO2 concentration difference between internal and external leaf chamber also affected net photosynthetic rate most greatly,next came transpiration rate. [Conclusion] High temperature stress affected the photosynthesis of potato in different growth stages,and it was more obvious during branching stage than seedling stage,while CO2 concentration difference between internal and external leaf chamber had the most important influence on net photosynthetic rate.

Comparison among Growth, Photosynthesis and Yield in Nanjing 9108 and Its Parents during the Late Development Stage

A good quality, high yield, slow mature and middle season Japonica rice variety, Nanjing 9108 and its parents Guandong 194 and Wuxiangjing 14,were taken as the materials for the study. The growth and photosynthetic characteristics of the rice plants at the post-flowering stage were compared and the rice yield components were examined at harvest. The results showed that as compared with Wuxiangjing 14, the per plant yield of Nanjing 9108 was 7.70% higher, and much higher than that of Guandong194. The large total grain per plant and heavy grain weigh of Nanjing 9108 were the important structure basis for its yield. Further analysis o the growth indicators showed that Nanjing 9108 had a large leaf area of upper three green leaves area and a smaller leaf base angle in the third leaf from the bottom blades, which helped get a higher photosynthetic capacity in groups. On the14 thday after flowering, Nanjing 9108 had similar value of net photosynthetic rate（Pn） to that of Wuxianjing 14, but lower than that of Guandong 194. Viewing from the parameters obtained from light response of photosynthesis on the modified model of rectangular hyperbola, Pn of Nanjing 9108 was more aptated to be saturated by light intensity and sensitive to photoinhibition. On the whole, Nanjing 9108 with high yield mainly resulted from its good plant type, grain structure and higher photosynthetic capacity in groups. Further improving its photosynthetic capacity o single leaf in Nanjing 9108 would be an important way for its super high yield po tential in the future.

Photosynthetic Responses to Inorganic Carbon in Ulva lactuca Under Aquatic and Aerial States

Intertidal macroalgae experience continual alternation of photosynthesis between aquatic state at high tide and aerial state at low tide. The comparative photosynthetic responses to inorganic carbon were investigated in the common intertidal macroalga Ulva lactuca L. along the coast of Shantou between aquatic and aerial state. The inorganic carbon dissolved in seawater at present could fully (at 10 ℃ or 20 ℃) or nearly (at 30 ℃) saturate the aquatic photosynthesis of U. lactuca . However, the aerial photosynthesis was limited by current ambient atmospheric CO 2 level, and such a limitation was more severe at higher temperature (20-30 ℃) than at lower temperature (10 ℃). The carbon_saturated maximal photosynthesis of U. lactuca under aerial state was much greater than that under aquatic state at 10 ℃ and 20 ℃, while the maximal photosynthesis under both states was similar at 30 ℃. The aerial values of K m (CO 2) for photosynthesis were higher than the aquatic values. On the contrary, the values of apparent photosynthetic CO 2 conductance under aerial state were considerably lower than that under aquatic state. It was concluded that the increase of atmospheric CO 2 would enhance the primary productivity of U. lactuca through stimulating the photosynthesis under aerial state during low tide.

Treponema pallidum and Haemophilus ducreyi DNA detection by A Multi-Nested Polymerase Chain Reaction

Objectives: To develop a multi-nested polymerase chain reaction in an assay to detect early Treponema pallidum and Haemophilius ducreyi DNA in the swabs of genital ulcers. Methods: Four pairs of outer and inner primers, specific to the basic membrane protein gene of Treponema pallidum and to the 16s rRNA gene of H ducreyi were synthesized. The multi-nested PCR was developed and applied to detect Treponema pallidum and Haemophilus dicreyi in clinical swabs. Result: The two samples of standard strains of Haemophilus ducreyi and one Treponema pallidum were amplified and showed 309-bp rRNA gene of Haemophilus ducreyi and 506-bp DNA of Treponema palidum, respectively. Out of 51 samples of genital ulcer detected, 29 showed Treponema pallidum positive product and no Haemophilus ducreyi DNA was found. Conclusion: The multi-nested PCR for Treponema pallidum and Haemophilus ducreyi could be useful for early detection and distinguishing diagnosis between syphilis and chancroid.

Application of first order rate kinetics to explain changes in bloom toxicity——the importance of understanding cell toxin quotas

Cyanobacteria are oxygenic photosynthetic Gram-negative bacteria that can form potentially toxic blooms in eutrophic and slow flowing aquatic ecosystems. Bloom toxicity varies spatially and temporally, but understanding the mechanisms that drive these changes remains largely a mystery. Changes in bloom toxicity may result from changes in intracellular toxin pool sizes of cyanotoxins with differing molecular toxicities, and/or from changes in the cell concentrations of toxic and non-toxic cyanobacterial species or strains within bloom populations. We show here how first-order rate kinetics at the cellular level can be used to explain how environmental conditions drive changes in bloom toxicity at the ecological level. First order rate constants can be calculated for changes in cell concentration( μ_c : specific cell division rate) or the volumetric biomass concentration( μ_g : specific growth rate) between short time intervals throughout the cell cycle. Similar first order rate constants can be calculated for changes in nett volumetric cyanotoxin concentration( μ_(tox) : specific cyanotoxin production rate) over similar time intervals. How μ_c(or μ_g) covaries with μ tox over the cell cycle shows conclusively when cyanotoxins are being produced and metabolised, and how the toxicity of cells change in response to environment stressors. When μ_(tox)/μ_c >1, cyanotoxin cell quotas increase and individual cells become more toxic because the nett cyanotoxin production rate is higher than the cell division rate. When μ_(tox)/μ_c =1, cell cyanotoxin quotas remains fixed because the nett cyanotoxin production rate matches the cell division rate. When μ_(tox)/μ_c <1, the cyanotoxin cell quota decreases because either the nett cyanotoxin production rate is lower than the cell division rate, or metabolic breakdown and/or secretion of cyanotoxins is occurring. These fundamental equations describe cyanotoxin metabolism dynamics at the cellular level and provide the necessary physiological background to understand how environmental stressors drive changes in bloom toxicity.

Co-Production of Lipids, Eicosapentaenoic Acid, Fucoxanthin, and Chrysolaminarin by Phaeodactylum tricornutum Cultured in a Flat-Plate Photobioreactor Under Varying Nitrogen Conditions

The marine diatom Phaeodactylum tricornutum is a polymorphological, ecologically significant, and well-studied model of unicellular microalga. This diatom can accumulate diverse important metabolites. Herein, we cultured P. tricornutum in an internally installed tie-piece flat-plate photobioreactor under 14.5 m mol L^(-1)(high nitrogen, HN) and 2.9 m mol L^(-1)(low nitrogen, LN) of KNO_3 and assessed its time-resolved changes in biochemical compositions. The results showed that HN was inductive to accumulate high biomass(4.1 g L^(-1)). However, the LN condition could accelerate lipid accumulation in P. tricornutum. The maximum total lipid(TL) content under LN was up to 42.5% of biomass on day 12. Finally, neutral lipids(NLs) were 63.8% and 75.7% of TLs under HN and LN, respectively. The content of EPA ranged from 2.3% to 1.5% of dry weight during the growth period under the two culture conditions. Peak volumetric lipid productivity of 128.4 mg L^(-1)d^(-1) was achieved in the HN group(on day 9). The highest volumetric productivity values of EPA, chrysolaminarin, and fucoxanthin were obtained in the exponential phase(on day 6) under HN, which were 9.6, 93.6, and 4.7 mg L^(-1)d^(-1), respectively. In conclusion, extractable amounts of lipids, EPA, fucoxanthin, and chrysolaminarin could be obtained from P. tricornutum by regulating the culture conditions.

A study on the shade tolerance of Muehlewbeckia complera

Muehlewbeckia complera was introduced to China in 2002 as indoor-hanging ornamental foliage plant. The experiment of the shade tolerance for this species was carried out in different light intensities (0.14–946.00 μmol·m?2·s?1). After 40 days in experimental areas, leaf photosynthentic characteristics indexes ofM. complera in different photosynthesis active radiation (PAR) were measured with LI-COR6400 apparatus, such as the light compensation point, light saturation point, and maximum net photosynthesis rate, at the same time, the increments of total leaf area and leaf amount were measured. The results showed that the optimum light intensity range forM. complera was from 9.26 μmol·m?2·s?1 to 569.00 μmol·m?2·s?1 (463–28150 lx, relative humidity (RH) for 46–60%, temperature at 16–22°C). Under this condition, leaf photosynthetic efficiency was tiptop. AlthoughM. complera belonged to the moderate sun-adaptation plant species, the plant growth was inhibited when PAR increased to the level of 569.000 μmol·m?2·s?1 or above.M. complera could sprout new leaves in photosynthesis active radiation of 0.16–19.22 μmol·m?2·s?1 (8–961 lx), or 10 μmol·m?2·s?1 for above 6 h. Keywords Muehlewbeckia complera - Shade tolerance - Cultivation - Photosynthesis CLC number S602.1 Document code A Foundation item: This study was supported by the Research Foundation of Northeast Forestry University.Biography: YUE Hua (1962-), female, Associate professor in Northeast Forestry University, Harbin 150040, P. R. China.Responsible editor: Zhu Hong