山东省农业改革发展30年回顾、经验总结及对策建议

本文对改革开放30年来山东省农业改革发展历程进行了深入分析,把改革发展历程划分为五个阶段,并系统概括了改革发展取得的主要成就。在此基础上,总结了山东省农业改革发展的基本经验,分析了当前农业改革发展中存在的突出问题,在此基础上,提出了山东省农业进一步改革发展的对策建议。     

大通县农村集体产权制度改革探讨

介绍了大通县农村集体产权制度改革的主要做法,对改革经验进行总结,同时指出了改革中存在的问题,提出了深化农村集体产权制度改革的建议。     

古蔺县国有林场改革存在的问题及对策

结合目前古蔺县国有林场改革实际,分析了古蔺县国有林场改革存在的问题,提出了古蔺县国有林场改革的对策,以期加快古蔺县国有林场改革步伐,促进国有林场健康可持续发展。     

天长市农村集体资产股份权能改革探索与实践

阐述了天长市农村集体资产股份权能改革试点的历程,介绍了具体改革举措,并总结了改革成效,以期为其他地区农村集体资产股份权能改革提供参考。     

农村集体农业机械产权制度改革探析

现行农村集体农业机械管理体制已不能适应当前生产发展的需要。对农村集体农业机械产权制度改革问题进行了探讨,分析了改革的原因,提出了改革的步骤,指出了改革的要求。     

从林业业态特殊性探讨我国集体林权改革相关制度

近年来,随着改革开放的逐渐深入,我国林业飞速发展的同时也进行了一定的集体林权改革。本文基于林业业态特殊性对我国集体林权改革相关制度进行探讨分析时,首先阐述了我国集体林权改革的必要性,并分析了我国集体林权制度改革中的林业产权改革和其改革的重点,最后并从林业业态特殊性的角度对我国集体林权改革的相关制度作了相关的思考。     

把握特殊性 推进社有企业转型升级

发展是我国现阶段的第一要务,而只有通过改革才能有力地推动发展。当前供销社改革进入到了实质性阶段,与此同时,供销社人以高度的政治自觉提出了供销社社有企业改革的问题,自觉顺应了我国深化政治经济改革的潮流,为推动社企改革做了有益的思考。本篇文章在深入分析社有企业特殊性的基础上,提出了改革意见,可谓高屋建瓴。《中国农资》就社企改革话题向其他省级农资公司征集意见,但是尚未有成熟的意见,还需要进一步学习其他企业的改革思路。由此可见,社有企业如何改革尚无成熟的模式,但也足见本篇文章的启迪意义。改革势在必行,正确面对、认真思考、锐意改革将是社有企业的必走之路。     

设施农业科学与工程专业实验课改革——以福建农林大学园艺学院为例

设施农业科学与工程是培养设施农业领域高级专门技术人才的新兴专业。本研究以福建农林大学园艺学院设施农业科学与工程专业的实验课改革为例,阐述了改革背景,介绍了改革途径,同时分析了改革成效,旨在为类似学科实验课改革提供参考。     

事业单位预算管理改革实践与发展对策

进入21世纪以来,我国开始了新一轮的以预算管理改革为重点的财政改革,包括"收支两条线"管理改革、部门预算改革、政府收支分类体系改革等。从预算管理的一般性分析入手,分析了现行政府预算管理改革取得的成效及存在的问题,并提出发展对策,以期促进事业单位预算管理的改革。     

关于城郊结合部农村集体产权制度改革的探索——以遵义市红花岗区为例

介绍了长征街道农村产权制度改革工作的现状以及具体改革内容,分析了改革中存在的问题,在此基础上提出了下一步工作措施,以期为深化农村集体产权制度改革提供参考。     

Transformation by v-sis occurs by an internal autoactivation mechanism

Transformation by the v-sis oncogene appears to require an interaction of its protein product, p28v-sis, with the receptor for the platelet-derived growth factor (PDGF). However, this interaction may not occur at the cell surface as predicted by the autocrine hypothesis because phenotypic transformation was not reversed by incubation of SSV-NRK cells with antisera to PDGF and because morphological transformation did not occur when nontransformed NRK cells were cultured continuously with p28v-sis. A mutant of the wild-type v-sis gene was constructed that encodes a v-sis protein targeted for retention within the endoplasmic reticulum and Golgi. NRK cells expressing the mutant v-sis gene did not secrete any detectable v-sis protein but were as fully transformed as wild-type v-sis transfectants. The results support a mechanism of transformation by v-sis in which internal activation of the PDGF receptor occurs before expression of either p28v-sis or the PDGF receptor at the cell surface.     

Hemagglutination by fava bean extract inhibited by simple sugars

Hemagglutination by extract of fava bean was inhibited by 5-percent d-glucose, d-fructose, or maltose, but not by 5-percent d-galactose or lactose. Failure to inhibit seems to reflect the presence of a hydroxyl group at the carbon No. 4 position. Hemagglutination was enhanced by dextran of high molecular weight, but not by dextran of low molecular weight. The finding supports the hypothesis that large molecular size explains the enhancement by gum acacia of hemagglutination by fava bean.     

Interferon: production by chick erythrocytes activated by cell fusion

In the presence of Sendai virus inactivated with ultraviolet light, nucleated chick erythrocytes can be fused with several types of human cells to form heterokaryons. Although chick erythrocytes alone cannot be stimulated by Sendai virus to produce interferon, fusion with a human cell (AH-1) which itself may produce human interferon results in heterokaryons in which the erythrocyte genome is activated and chick interferon is produced. When nucleated chick erythrocytes are fused with another type of human cell (HeLa clone S-3) which does not produce human interferon when stimulated, no chick interferon is detectable, despite morphologic changes suggestive of activation of the erythrocyte nuclei.     

Language discrimination by human newborns and by cotton-top tamarin monkeys

Humans, but no other animal, make meaningful use of spoken language. What is unclear, however, is whether this capacity depends on a unique constellation of perceptual and neurobiological mechanisms or whether a subset of such mechanisms is shared with other organisms. To explore this problem, parallel experiments were conducted on human newborns and cotton-top tamarin monkeys to assess their ability to discriminate unfamiliar languages. A habituation-dishabituation procedure was used to show that human newborns and tamarins can discriminate sentences from Dutch and Japanese but not if the sentences are played backward. Moreover, the cues for discrimination are not present in backward speech. This suggests that the human newborns' tuning to certain properties of speech relies on general processes of the primate auditory system.     

Ionization of liquids by radiation: measurement by charge scavenging

Pulse radiolysis of dilute solutions of triphenylcarbinol in saturated hydrocarbon gives spectra of the triphenylmethyl free radical, (C(6)H(5))(3)C., and cation, (C(6)H(5))(5)C(+). The yield of the ion is independent of the carbinol concentration, and is thought to measure the yield of free ions generated in the solvent. The relative yields of ions thus found in cyclohexane and 2,2,4-trimethylpentane agree with measurements made by the clearing-field method.     

Hardening by annealing and softening by deformation in nanostructured metals

We observe that a nanostructured metal can be hardened by annealing and softened when subsequently deformed, which is in contrast to the typical behavior of a metal. Microstructural investigation points to an effect of the structural scale on fundamental mechanisms of dislocation-dislocation and dislocation-interface reactions, such that heat treatment reduces the generation and interaction of dislocations, leading to an increase in strength and a reduction in ductility. A subsequent deformation step may restore the dislocation structure and facilitate the yielding process when the metal is stressed. As a consequence, the strength decreases and the ductility increases. These observations suggest that for materials such as the nanostructured aluminum studied here, deformation should be used as an optimizing procedure instead of annealing.     

依法治校与以德治校的思考

依法治校与以德治校是学校管理科学化、规范化的必须和标志。文章以实际工作中存在的一些问题为背景，就如何坚持依法治校与以德治校提出处理好若干关系的建议，指出依法治校是学校管理的保障和前提，以德治校是学校发展的灵魂和动力。