桂橡机掀起改革整顿热潮

随着企业改革整顿工作不断深入，桂林橡胶机械厂在全体职工中掀起了企业改革整顿理论探研的热潮。为了使这一理论探研具有较高的现实指导意义，该厂党委、厂部号召全体职工在认真学习企业改革整顿有关文件的基础上，结合自己的心得体会，就某一问题展开研究，写出适合该厂实际，并且有可操作性的理论、观点，从而指导和运用到该厂下一阶段的改革整顿工作中。员工们针对在改革整顿中遇到的问题发表见解和主张，纷纷写出了一篇篇颇有参考价值的文章。有人写了“如何把企业改革和管理结合起来”，论述该厂如何在改革整顿中降低原材料成本，并提…     

完善我国公司治理结构的思考

20世纪90年代初，经济学家们在改进、介绍和借鉴国外有关公司治理的理论和实践经验的基础上，对我国公司治理结构改革的各个方面的问题展开了讨论，提出了若干建设性的意见和建议。经过多年的改革，国有企业改革已取得了一定成就，企业制度已有相当在的改变，企业经营机制也逐步转换，但深层次的问题仍未得到根本解决，改革的难度加大。面对日益接近的国际以及跨国公司的激烈竞争，加快完善我国的公司治理结构，提高其竞争力，尤为重要。     

国库集中支付制度改革存在的问题及对策

国库集中支付制度改革是我国财政支出管理制度改革的重要内容，是我国建立公共财政框架的重要组成部分。实行国库集中支付改革，进一步增强财政资金支出的透明度，提高财政资金使用效益。但随着改革的深入，也出现了一些值得我们进一步探讨和解决的问题。     

石油工程专业钻井生产实习改革探索与实践

钻井生产实习是石油工程专业实践教学的重要组成部分，也是培养学生知识运用能力和实践能力的重要手段。开展钻井生产实习工作有助于深化学生对钻井工程理论的理解，提高其分析问题和解决问题的实际工作能力，并培养其创新意识。系统分析了目前钻井生产实习存在的主要问题，介绍了钻井生产实习改革的措施，并重点对实习内容与实习计划改革作了详细论述，分析了钻井生产实习改革的初步成效，对于提高钻井生产实习质量具有一定的指导意义。     

破除藩篱开启非公经济发展新天地

党的十八届三中全会审议通过《中共中央关于全面深化改革若干重大问题的决定》，提出了全面深化改革的总目标、总方向、时间表，并对改革做出系统部署，从而拉开了中国新一轮改革的大幕。其中，有关所有制结构调整、市场决定论、深化对外开放、资源有偿使用、生态红线等对石油和化工行业的发展影响深远，而教育、社会福利等改革要求也与石油和化工企业职工息息相关。为此，我们近日结合行业实际，就三中全会《决定》中的内容和业界普遍关注的焦点问题进行了深入采访，组织了这组特别报道。     

化工专业认识实习实践教学方法改革

陈述了认识实习在实践教学中的重要作用，分析了传统认识实习中存在的主要问题，并针对这些问题提出了提高认识实习质量的一些改革措施，以期通过这些改革措施使认识实习能够真正发挥它的作用，而不是流于形式。     

国有企业改革与产权

国有企业改革与产权任新宇本文提出了当前我国国有企业改革中存在的问题，主要是：自主权不到位；企业依然包袱沉重；政府职能转变滞后等。指出国有企业改革的关键是产权问题，改革的适当形式是股份制。当前国有企业的改革引起各方面人士的关注，本文拟就这一改革的迫切性...     

浅谈党建工作的重要作用

随着我国企业改革的不断深化，党建工作也暴露了一些突出问题，而这些直接影响着企业改革不断深化。在新的形势下，企业的党建工作就一定要有效地保证和促进企业的经营管理，保证和促进企业的建设与发展。     

冲破所有制认识误区 加快国有企业改革步伐

党的十一届三中全会以来，我国国有企业改革经历了简政放权，利润留成，“利改税”、“拨改贷”，以及承包制到建立现代企业制度几个阶段，这期间，主要在政府如何给企业下放权利和利润分配方面作文章。由于种种改革办法不能触及到更深层次的问题，试图绕开所有制问题。国...     

上海石化企业改革及问题分析

阐述了上海石化改革及其向现代公司制转换中的问题，分析了改革的难点。     

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.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Many Drugs of Abuse May Be Acutely Transformed to Dopamine,Norepinephrine and Epinephrine In Vivo

It is well established that a wide range of drugs of abuse acutely boost the signaling of the sympathetic nervous system and the hypothalamic–pituitary–adrenal (HPA) axis, where norepinephrine and epinephrine are major output molecules. This stimulatory effect is accompanied by such symptoms as elevated heart rate and blood pressure, more rapid breathing, increased body temperature and sweating, and pupillary dilation, as well as the intoxicating or euphoric subjective properties of the drug. While many drugs of abuse are thought to achieve their intoxicating effects by modulating the monoaminergic neurotransmitter systems (i.e., serotonin, norepinephrine, dopamine) by binding to these receptors or otherwise affecting their synaptic signaling, this paper puts forth the hypothesis that many of these drugs are actually acutely converted to catecholamines (dopamine, norepinephrine, epinephrine) in vivo, in addition to transformation to their known metabolites. In this manner, a range of stimulants, opioids, and psychedelics (as well as alcohol) may partially achieve their intoxicating properties, as well as side effects, due to this putative transformation to catecholamines. If this hypothesis is correct, it would alter our understanding of the basic biosynthetic pathways for generating these important signaling molecules, while also modifying our view of the neural substrates underlying substance abuse and dependence, including psychological stress-induced relapse. Importantly, there is a direct way to test the overarching hypothesis: administer (either centrally or peripherally) stable isotope versions of these drugs to model organisms such as rodents (or even to humans) and then use liquid chromatography-mass spectrometry to determine if the labeled drug is converted to labeled catecholamines in brain, blood plasma, or urine samples.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Novel polyurethane coating technology through glycidyl carbamate chemistry

Glycidyl carbamate chemistry combines the excellent properties of polyurethanes with the crosslinking chemistry of epoxy resins. Glycidyl carbamate functional oligomers were synthesized by the reaction of polyfunctional isocyanate oligomers and glycidol. The oligomers were formulated into coatings with several amine functional crosslinkers at varying stoichiometric ratios and cured at different temperatures. Properties such as solvent resistance, hardness, and impact resistance were dependent on the composition and cure conditions. Most coatings had an excellent combination of properties. Studies were carried out to determine the kinetics of the curing reaction of the glycidyl carbamate functional oligomers with multifunctional and model amines. Detailed kinetic analysis of the curing reactions was also undertaken. The results indicated that the glycidyl carbamate functional group is more reactive than a glycidyl ether group. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, on October 27–29, 2004, in Chicago, IL.