高校新生心理适应问题探析     

曾兴祁  蔡志鹏  王伟 《重庆职业技术学院学报》2015,24(2)

“心理断乳”的问题在各高校大一新生中普遍存在.面对这一问题,文章从“心理适应”的概念出发,揭示开展大一新生心理适应问题研究的价值,结合实际挖掘出影响新生心理适应高低的各种因素,继而从高校和学生两大方面提出促使新生心理适应水平提高的对策,以切实可行的方案推进高校大一新生融入大学环境.  相似文献   

高温用捆带冷轧原料使用性能评价     

黄菲  陶军晖  柳俊  匡伟  张兆丽  张建国 《黄冈职业技术学院学报》2015,(3):88-90

某客户外购了一卷冷轧原料,尝试进行高温用捆带的试制,委托对其进行性能评估,以确认该原料钢卷能否满足实际生产的需要,为后续是否批量采购提供科学依据。通过对该冷轧原料进行化学成分、微观组织、力学性能、表面质量和板形进行分析,可以确认其尽管还存在一些不足,但总体上仍能满足使用要求。同时,建议客户在批量采购前最好对产品的捆扎方式、应用对象、生产工艺和性价比进行全面考虑。  相似文献   

食品微生物检验综合大实验开设的实践与探索     

张艳艳  高秀芝  黄漫青  艾启俊  熊利霞  魏紫焉 《中国现代教育装备》2015,(1):93-96

食品微生物是综合性和实践性很强的学科,食品微生物检验综合大实验的开设很好弥补和完善了食品微生物实验课的内容。食品微生物综合大实验开设的探索和尝试,获得了良好的效果。文章论述了食品微生物综合大实验开设的必要性,对实验实施方案,实施过程,实验效果和实施中存在的不足进行了总结和分析,并提出实验改进方案,为进一步实践提供借鉴。  相似文献   

带资金约束的条件延期支付策略模型     

孙学芳  孟伟 《滨州学院学报》2015,(2):53-62

在信息完全对称情况下,建立了带资金约束的条件延期支付的斯坦伯格博弈模型,并从供应商角度研究了订货阀值的设置问题和零售商的最佳订货量。通过对模型的算法求解和案例分析验证了模型的有效性。  相似文献   

Ten Years’ Chinese-Canadian Collaboration in Undergraduate Education in Fujian Agriculture and Forestry University of China: Curriculum Development     

Songliang Wang  Claude Caldwell  Liqing Wei  Haiyan Su 《Frontiers of Education in China》2015,10(3):427-438

The Fujian Agriculture and Forestry University-Nova Scotia Agricultural College (FAFU-NSAC) 2 + 2 undergraduate program initiated in 2003 is a model for creative collaboration between China and Canada in undergraduate education. This paper addresses the achievements of the program development and highlights the process for successful curriculum development in the joint program. The authors also discuss some issues and challenges related to the Chinese-Canadian experience in undergraduate education, and propose some recommendations for further collaborations including: enlarging the scale of qualified programs; proposing a systematic baseline to control the program at a macro-level; simplifying coordination procedures with foreign partners; and adjusting the emphasis of courses introduced by the cooperative partner from quantity to quality.  相似文献   

建构主义学习理论指导下的自学考试网络助学策略设计     

岳伟 《考试研究》2015,(1):9-16

社会助学是自学考试制度的重要组成部分。开展网络助学,有助于更好地体现自学考试制度的开放性、灵活性、资源共享性以及个性化等特点。建构主义学习理论是目前国际前沿教育理论,对于自学考试网络助学体系建设和策略设计有着重要的指导意义。本文结合天津市自学考试网络助学体系建设的实践,阐述建构主义学习理论对现代远程教育的指导意义其及在自学考试网络助学策略设计中的应用。  相似文献   

Chlorogenic acid prevents acetaminophen-induced liver injury: the involvement of CYP450 metabolic enzymes and some antioxidant signals     

Chun Pang  Yu-chen Sheng  Ping Jiang  Hai Wei  Li-li Ji 《Journal of Zhejiang University. Science. B》2015,16(7):602-610

Chlorogenic acid (CGA), a polyphenolic compound, is abundant in fruits, dietary vegetables, and some medicinal herbs. This study investigated the prevention of CGA against acetaminophen (AP)-induced hepatotoxicity and its engaged mechanisms. CGA reversed the decreased cell viability induced by AP in L-02 cells in vitro. In addition, CGA reduced the AP-induced increased serum levels of alanine/aspartate aminotransferase (ALT/AST) in vivo. The effect of CGA on cytochrome P450 (CYP) enzymatic (CYP2E1, CYP1A2, and CYP3A4) activities showed that CGA caused very little inhibition on CYP2E1 and CYP1A2 enzymatic activities, but not CYP3A4. The measurement of liver malondialdehyde (MDA), reactive oxygen species (ROS), and glutathione (GSH) levels showed that CGA prevented AP-induced liver oxidative stress injury. Further, CGA increased the AP-induced decreased mRNA expression of peroxiredoxin (Prx) 1, 2, 3, 5, 6, epoxide hydrolase (Ephx) 2, and polymerase (RNA) II (DNA directed) polypeptide K (Polr2k), and nuclear factor erythroid-2-related factor 2 (Nrf2). In summary, CGA ameliorates the AP-induced liver injury probably by slightly inhibiting CYP2E1 and CYP1A2 enzymatic properties. In addition, cellular important antioxidant signals such as Prx1, 2, 3, 5, 6, Ephx2, Polr2k, and Nrf2 also contributed to the protection of CGA against AP-induced oxidative stress injury.  相似文献   

匹伐他汀钙对高胆固醇血症患者动脉粥样硬化的影响（英文）     

Jing ZHAO  Hui-min YAN  Ya LI  Jia WANG  Lu HAN  Zhi-hao WANG  Meng-xiong TANG  Wei ZHANG  Yun ZHANG  Ming ZHONG 《Journal of Zhejiang University. Science. B》2015,16(5):380-387

目的:观察匹伐他汀钙对高胆固醇血症患者外周血管的影响。创新点:首次在国内发现匹伐他汀钙能够改善高胆固醇血症患者肱动脉和颈动脉血管内皮功能而且延缓其动脉粥样硬化发展,并首次证实改善内皮功能是匹伐他汀钙延缓其动脉粥样硬化发展的重要原因。方法:按照入选排除标准,选取本院高胆固醇血症患者(HC),完成超声心动图检查的40例。根据剂量不同,分为两个剂量组:1 mg剂量组20例(男性5例,女性15例,平均年龄(55.20±8.35)岁),2 mg剂量组20例(男性9例,女性11例,平均年龄(57.56±6.09)岁)。访视结束后完成超声心动图检查的HC组36例,两个剂量组分别有2人失访。治疗后1 mg剂量组18例(男性3例,女性15例,平均年龄(56.00±7.85)岁),2 mg剂量组18例(男性7例,女性11例,平均年龄(57.79±6.46)岁)。选择本院同期体检中心30例正常人作为对照(年龄和性别均与病例组匹配,男性14例,女性16例,平均年龄(54.94±6.90)岁)。所有研究对象,均经隔夜禁食12~14小时,次日清晨抽取空腹肘静脉血,测定临床生化指标。采用Sequia512彩色多普勒超声诊断仪,应用高分辩率外周血管超声技术,检测HC治疗前后肱动脉血流介导性舒张功能(FMD)、颈动脉结构和功能。结论:经匹伐他汀钙治疗8周后,高胆固醇血症患者血管功能明显改善,表现为FMD升高,僵硬度减小;颈动脉僵硬度和内中膜厚度(IMT)延缓进展与其内皮功能改善密切相关。  相似文献   

Microcalorimetry studies of the antimicrobial actions of Aconitum alkaloids     

Yan-bin Shi  Lian Liu  Wei Shao  Ting Wei  Gui-mei Lin 《Journal of Zhejiang University. Science. B》2015,16(8):690-695

The metabolic activity of organisms can be measured by recording the heat output using microcalorimetry. In this paper, the total alkaloids in the traditional Chinese medicine Radix Aconiti Lateralis were extracted and applied to Escherichia coli and Staphylococcus aureus. The effect of alkaloids on bacteria growth was studied by microcalorimetry. The power-time curves were plotted with a thermal activity monitor (TAM) air isothermal microcalorimeter and parameters such as growth rate constant (μ), peak-time (T_m), inhibitory ratio (I), and enhancement ratio (E) were calculated. The relationships between the concentration of Aconitum alkaloids and μ of E. coli or S. aureus were discussed. The results showed that Aconitum alkaloids had little effect on E. coli and had a potentially inhibitory effect on the growth of S. aureus.  相似文献   

主动适应经济社会发展需要 创新高层次应用型人才培养机制——对加快培养高层次应用型人才的思考     

张伟 《中国轻工教育》2015,(1):12-14

教育的根本任务在育人。在新形势下,迫切需要培养一大批高层次应用型人才,带动产业结构转型升级,实现从人力资源大国向人力资源强国转变,从而实现"两个一百年"的伟大目标。加快培养高层次应用型人才,就要更新观念不断创新高层次应用型人才培养的新模式,就要整合各方资源积极搭建高层次应用型人才成长的新平台,还要优化路径不断完善高层次应用型人才培养的新机制,为高层次应用型人才培养保驾护航。  相似文献