元素无机化学教学中“归纳总结法”的研究与探讨

针对民族院校应用化学、化学工程与工艺、材料化学等专业大一新生在无机元素化学课程的教学过程中存在的问题,并结合教学及科研中的实践体会,文章对元素无机化学知识之间的规律性进行了探讨,希望对大一新生学好无机化学有所帮助。     

药学无机化学教学中的几点体会

药学无机化学是药学院大一新生接触的第一门也是非常重要的一门化学专业课。针对学生专业的特殊性以及现代教育的特点,作者通过对本课程的多年教学经验,从教材选择、教学方法、教学手段以及考核手段等方面总结了几点教学体会。     

概念同化策略在大学无机化学教学中的应用——以《酸碱质子理论》教学为例

无机化学是与高中化学联系比较紧密的后续化学课程。为了突破大一新生化学知识原地踏步走的无机化学学习现状,我们在教学中运用概念同化策略进行无机化学教学,取得了很好的成效。文章主要以《酸碱质子理论》教学为例说明了如何在教学过程中运用概念同化学策略。     

课程思政建设在地方院校无机化学教学中的探索

无机化学课程作为一门化学专业大一新生的必修课程,在专业人才培养上起着重要作用,在无机化学教学中进行思政课程建设可以更有效地落实化学教育的育人职责.因此本文以无机化学课程为例,分析了无机化学课程思政建设的作用,并在无机化学课程思政资源的挖掘和思政教学手段等方面进行了探索.     

《无机化学》教学的探索与实践

无机化学作为高校化学专业的一门专业主干课程,授课对象为大一新生,教学过程相对其它专业课程具有一些独特的特点,本文根据我们的教学实践,分析了无机化学教学过程中面临的教学内容、学生学习方式和教学方法等问题,总结了一些我们采取的具体有效的做法。极大地促进教学目标的实现,提高学生的学习兴趣的同时增强了创新能力。     

化学专业《无机化学》课程教学改革探索与实践

为了提高化学专业无机化学的教学效果,笔者结合自己的教学实践,提出了一些具体有效的做法。要针对无机化学课程的特点及教学对象、教学内容的特殊性,正确认识其重要性、有效地构建课程内容体系和科学地选择教学方法和手段,这对大一新生尽快适应大学学习生活非常重要。     

浅谈无机化学实验教学改革心得

基础化学实验作为化学的基础学科,在无机化学的教学中起着非常重要的作用。也是大一新生入学以后接触到的专业必修课之一,对其将来的工作和学习影响很大。因此,结合无机化学实验的教学实践,进一步深化无机化学实验改革,培养和激发学生对科学知识的学习兴趣和实验能力,对学生能力的全面发展、创新意识的提高和良好实验习惯的形成有着举足轻重的作用。     

从美国研究生入学资格化学考试看大一化学教学的重要性

目前,有这样一种倾向,似乎大学化学基础教学,特别是工科大一化学教学不足道或无出路。在一些人的眼里,最无用的人才搞大一化学教学。也有的学生反映大一化学没学头。实际上,在国内外许多著名的大学,许多著名的教授在为一年级新生讲授基础无机化学或普通化学。本文以美国研究生入学资格化学考试（GRE Chemistry Test）为例来说明大一化学在大学化学教育中的举足轻重的地位。     

浅谈《无机化学》课堂教学的几点体会

无机化学是安庆师范大学化学专业、材料化学专业和化学工程与工艺专业必修的专业课之一,也是大一新生刚进入大学接触的第一门专业课,对将来其他相关专业课的学习影响较大。此外,在课堂教学上还肩负着培养学生的创新能力的任务。本文从教学内容、教学方法、教学手段等方面,浅谈了无机化学教学过程中的几点体会,旨在提高无机化学课堂教学质量。     

立德树人理念下思想政治教育融入无机化学课程的探讨

无机化学专业课已经成为化学化工学院的大一新生学习的重要课程,对大学生今后在本科阶段的发展起着至关重要的作用,通过分析无机化学专业课的特点,结合当代高校教育的重要使命是培养合格的社会主义建设者和接班人,提出在无机化学专业课中融入思想政治教育[1]。将立德树人理念与无机化学专业的课程目标、无机专业知识、课程考核机制、学风班风等进行合理融合。明确了无机化学课程思想政治教育的目标和内涵。阐述了在无机化学专业课中对大学生进行思想政治教育的途径,深入探讨在无机化学教学中渗透思想政治教育的意义。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.