关于巴里坤湖卤虫卵深加工技术途径的研究

本文研究了巴里坤湖初制卤虫卵深加工过程中泥沙、空壳等杂质与完整卵分离技术的４种途径。结果表明．最优途径为长时间高浓度盐水──淡水途径。     

关于提高国家基金申报质量的对策研究

农业科研的特殊性决定了农业基础理论研究经费的主渠道只能依靠政府拨款,农业高校的基础研究也必将更多地依靠国家自然科学基金的支持。本文根据国家自然科学基金委员会当年发出的"申请项目未获资助的通知",对山西农大未获资助的25个项目的未获资助原因资料进行了统计分析,从科研管理角度分析中请失败的原因,就农业高校如何加强前期管理工作,增强科研储备,提高国家自然科学基金的申报质量,提出了一些建议。     

转基因抗虫棉施肥技术研究

采取施基肥、追肥和叶面喷肥的方法，对转基因抗虫棉的施肥技术进行了研究。结果表明：重施基肥、早施追肥、增施钾肥、叶面喷肥是转基因抗虫棉施肥技术的核心。重施基肥，增施钾肥，氮、磷、钾合理配施对转基因抗虫棉前期弱生长势的快速转化具有重要作用，干物质积累比对照提高15％～20％，皮棉增产8．4%～19．o％；追肥以初花期为宜，分别比盛蕾期和盛花期追肥增产7．1％和14．8％；叶面喷施KH：PO4及与尿素和硼肥的混合液2～3次，能明显减轻后期早衰，增产明显。     

河南省特定生态条件下小麦增产途径的研究

河南省小麦生育期间光热资源丰裕,但降雨分配不均。灌区小麦分蘖发展快,两极分化速度慢,籽粒灌浆期短,麦田耗水量大,影响产量的主要因子是亩穗数和千粒重。旱区小麦分蘖的第二盛期不明显,不孕小穗和退化小花数目多,籽粒灌浆期更短,麦田耗水量小,影响产量的主要因子是亩穗数和穗粒数。有效促控小麦群体发展,充分利用生态条件,把握着适宜于当地的小麦群体是两区稳取高产的基础;从实际出发,有针对性地解决或缓和导致穗重不稳的主要矛盾是确保两区小麦增产的关键。     

当代高校教师心理现状及对策研究

通过对当代高校教师心理状况的分析，提出了解决这些问题的方法和对策。     

大学生心理健康教育实施途径研究

现在的在大学生是应试教育下培养出来的，他们在中小学阶段只注重知识的积累，而忽视了素质的培养，尤其是心理素质的培养，进入大学，各种心理困扰，心理问题日渐突出。大学生心理健康教育工作尽管已受到高校的普遍关注，但是仍不能适应全面推进素质教育的需要，我们应努力探索新形势下大学生心理健康教育的实施途径。     

论高校德育创新与构建和谐校园

构建高校和谐校园是建设社会主义和谐社会的重要组成部分。高校德育对构建和谐校园有着主导作用,高等院校要积极探索新形势下的德育新途径,努力构建和谐校园,为建设和谐社会做出应有的贡献。     

Factors affecting in vitro adventitious shoot formation on internode explants of Citrus aurantium L. cv. Brazilian

The in vitro formation of newly formed adventitious buds and shoots from internodal branch segments was studied on 12-month-old plants of Citrus aurantium L. cv. Brazilian. The effects of 6-Benzyladenine (BA) and α-Naphthalene acetic acid (NAA) treatments were evaluated on adventitious bud and shoot regeneration. High rates of bud initiation and shoot development were obtained both with BA supplemented medium, in the range from 1 mg L⁻¹ to 3 mg L⁻¹, and with 0.1 mg L⁻¹ NAA supplemented medium. NAA concentrations above 1 mg L⁻¹ significantly reduced bud initiation and shoot elongation. The results obtained using different in vitro culture vessels such as Petri dishes, tubes and glass culture jars were compared. The highest adventitious bud induction was observed in Petri dishes for internodes cultured in 2 mg L⁻¹ BA supplemented medium, with 95% responsive explants forming 9.0 ± 2.4 adventitious buds. The adventitious buds observed in Petri dishes reached a maximum height of 1 mm, with no further development, while some of the adventitious shoots cultured in tubes and glass culture jars grew over 1 cm in height. A shoot regeneration gradient of the internodes collected along the branch axis was noticed, with basal ones exhibiting higher regeneration frequency.     

Effects of bFGF on neuronal apoptosis and fractalkine expression in cerebral ischemia/reperfusion rats

AIM: To study the effects of basic fibroblast growth factor (bFGF) on neuronal apoptosis and fractalkine expression in ischemic penumbra after cerebral ischemia/reperfusion in rats.METHODS: Thirty-six rats were randomly divided into 3 groups: sham operation group, ischemia/reperfusion group and bFGF group. The model of middle cerebral artery occlusion was established by the method of intraluminal filament blockage. The middle cerebral arteries were blocked for 1 h and then reperfused for 24 h. Neurological performances of all rats were scored with Bederson's standard. The brain tissues of the rats were stained and the average infarct volume was calculated. TUNEL method was used to determine the number of apoptotic neurons, and the expression of fractalkine was detected by the method of immunohistochemistry.RESULTS: The score of neurological performances in bFGF group was 2.23±0.59, lower than that in ischemia/reperfusion group (3.18±0.65). The number of apoptotic neurons in bFGF group (13.22±1.35) was lower than that in ischemia/reperfusion group (17.28±1.01, P<0.05), which was the lowest in sham operation group (0.91±0.65). Compared with sham operation group, the expression of fractalkine in ischemia/reperfusion group was decreased. The expression of fractalkine in bFGF group was mainly higher than that in ischemia/reperfusion group (P<0.05).CONCLUSION: Up-regulation of fractalkine may be one of the molecular mechanisms of bFGF to protect neurons against ischemia/reperfusion injury.     

农业景观审美性浅析

探讨了农业景观的起源与发展过程,论述了农业景观审美体系是由审美主体、审美客体以及主体对客体产生的审美感受三部分构成,缺一不可;并进一步说明了农业景观的审美体验,介绍了自然农业景观、农业观光园以及农业主题性公园的不同特点以及审美方式;从不同的美的角度出发,讨论了农业景观的审美价值和审美意义,为现代景观设计提供了有价值的素材。