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2015年,我国将在全国范围内全面启动住院医师规范化培训,针对规范化培训的教学改革引起了学者的广泛关注。随着现代信息技术的不断发展,"微课"这一新的教学模式在现代教学活动中的发挥的作用越来越突出,其短时有效的教学内容能快捷、方便、反复的获取,提高了学生学习效率和学习质量。依托规范化培训基地,将"微课"融入住院医师规范化培训,通过微视频、动漫、3D模型等方式,直观形象向住院医师讲解疾病及诊疗操作相关内容,并让住院医师参与"微课"设计、制作、学习的整个过程,能够提高住院医师规范化培训的效果、缓解医患矛盾、丰富医学大数据。本文就"微课"在住院医师规范化培训中的几点想法与同行共享。 相似文献
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为解决贫困山区食用菌产业发展中存在的生产管理粗放、优质优品意识不强、包装标识不科学、农产品品牌建设滞后等问题,实现食用菌产业高质量发展,从历史渊源、种植习惯、政策支持等角度,分析商洛市食用菌产业发展历程。在此基础上,结合贫困山区食用菌产业发展特点,对高质量发展存在的生产管理质量不高、标准化生产程度低、产业链条延伸拓展不足等问题进行探讨。从发挥政府职能、落实政策保障、培育职业农民、扶持龙头企业、加强投入品监管、强化全程质量控制、培育农产品品牌等方面提出高质量发展对策。 相似文献
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食用菌加工产业研究现状与前景 总被引:2,自引:0,他引:2
食用菌加工是利用物理、化学和生物方法处理食用菌子实体或菌丝体,生产食用菌制品。它可以解决食用菌从生产到商品出售所存在的时间矛盾,提高食用菌的商品价值。详细介绍了食用菌的干制加工、盐渍加工及罐藏加工技术,概括了食用菌深加工产业的发展现状及研究进展,提出了对食用菌加工的展望。 相似文献
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农田减氮调控施肥对华北潮土区小麦-玉米轮作体系氮素损失的影响 总被引:9,自引:0,他引:9
针对华北平原麦玉轮作区氮肥用量大、氮损失及土壤氮素累积严重的问题,探索不同减氮调控施肥措施对作物产量、氮损失及土壤无机氮累积的影响.通过(2016—2017年)设置两年大田试验,以农民施肥为对照,研究控释肥处理、微生物肥处理及配施硝化抑制剂处理减少氮用量后对小麦、玉米产量和地上部吸氮量、氮损失及土壤无机氮含量的影响.结果表明: 2016年微生物肥处理的小麦产量显著低于控释肥处理和硝化抑制剂处理,与农民施肥处理无显著性差异;且小麦和周年作物地上部吸氮量都显著降低.2017年各处理间作物产量和吸氮量无显著性差异.3种减氮调控施肥处理均能保持和改善耕层土壤肥力;且微生物肥处理随种植时间延长对土壤碱解氮、速效钾和有机质含量均有提升.随种植时间延长无机氮累积严重,微生物肥处理和添加硝化抑制剂处理均可降低40~100 cm土壤剖面的无机氮含量,而控释肥处理可提高0~40 cm土层无机氮含量.氮损失中氨挥发>淋溶量>N2O排放>径流,径流损失可忽略不计,其中以农民施肥处理氮损失最大,微生物肥处理可显著降低氨挥发损失量,但淋溶量较大.综上所述,减量施氮条件下,控释肥处理和添加硝化抑制剂处理可保证作物产量及地上部吸氮量,微生物肥处理随种植年限的延长可保证作物产量和吸氮量.微生物肥和添加硝化抑制剂处理可降低40~100 cm土层无机氮含量,控释肥处理对削减无机氮量效果不明显;几种减氮调控措施均可降低氮损失,但微生物肥处理需调整措施来降低氮的淋溶量. 相似文献
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微生物学检验是高职微生物专业和医学检测专业的必修课程,该课程的开展能够让学生认识并观察常见的微生物,明确微生物的特性,掌握基础的微生物鉴定检验技术。但部分高职微生物学检验课程教学现状不容乐观,存在单次教学时间长、单次课程内容多、教学方式单一等问题。微课是一种新型数字教学资源,具有视频时长短、内容针对性强、教学目标明确等特点,可以与微生物学检验课程特点相契合。在当前的社会形势下,高职院校要深入研究微课的特点,深化微课在高职微生物学检验教学中的应用,促使高职微生物学检验教学向高效化、精细化方向发展。 相似文献
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In experiments on Black Sea skates (Raja clavata), the potential of the receptor epithelium of the ampullae of Lorenzini and spike activity of single nerve fibers connected to them were investigated during electrical and temperature stimulation. Usually the potential within the canal was between 0 and –2 mV, and the input resistance of the ampulla 250–400 k. Heating of the region of the receptor epithelium was accompanied by a negative wave of potential, an increase in input resistance, and inhibition of spike activity. With worsening of the animal's condition the transepithelial potential became positive (up to +10 mV) but the input resistance of the ampulla during stimulation with a positive current was nonlinear in some cases: a regenerative spike of positive polarity appeared in the channel. During heating, the spike response was sometimes reversed in sign. It is suggested that fluctuations of the transepithelial potential and spike responses to temperature stimulation reflect changes in the potential difference on the basal membrane of the receptor cells, which is described by a relationship of the Nernst's or Goldman's equation type.I. P. Pavlov Institute of Physiology, Academy of Sciences of the USSR, Leningrad. I. M. Sechenov, Institute of Evolutionary Physiology and Biochemistry, Academy of Sciences of the USSR, Leningrad. Pacific Institute of Oceanology, Far Eastern Scientific Center, Academy of Sciences of the USSR, Vladivostok. Translated from Neirofiziologiya, Vol. 12, No. 1, pp. 67–74, January–February, 1980. 相似文献
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N. P. Vesselkin Yu. V. Natochin 《Journal of Evolutionary Biochemistry and Physiology》2010,46(6):592-603
Evolution of living organisms is closely connected with evolution of structure of the system of regulations and its mechanisms.
The functional ground of regulations is chemical signalization. As early as in unicellular organisms there is a set of signal
mechanisms providing their life activity and orientation in space and time. Subsequent evolution of ways of chemical signalization
followed the way of development of delivery pathways of chemical signal and development of mechanisms of its regulation. The
mechanism of chemical regulation of the signal interaction is discussed by the example of the specialized system of transduction
of signal from neuron to neuron, of effect of hormone on the epithelial cell and modulation of this effect. These mechanisms
are considered as the most important ways of the fine and precise adaptation of chemical signalization underlying functioning
of physiological systems and organs of the living organism 相似文献
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