镉、铜胁迫对路易斯安娜鸢尾生理生化的影响

通过溶液培养的方法,研究了Cd、Cu胁迫对路易斯安娜鸢尾幼苗生长及生理生化的影响.结果表明:Cd、Cu胁迫下,路易斯安娜鸢尾幼苗生长缓慢,地上、地下干重下降,叶片中的叶绿素含量均随胁迫浓度的增加而降低；植株叶片的丙二醛和游离脯氨酸含量、超氧化物岐化酶活性均随处理浓度、处理时间的延长而增加.     

Developing socioeconomic indicators for an ecosystem-based fisheries management approach: An application to the Korean large purse seine fishery

Developing socioeconomic indicators for ecosystem-based fisheries management is particularly important. This is because socioeconomic factors have direct effects on ecosystems, and ecosystems have direct effects on socioeconomic factors. Therefore, it is imperative that socioeconomic indicators are developed and evaluated in order to predict changes in ecosystems and to provide advice for effective fisheries management. In this study, socioeconomic indicators have been developed to be combined with biological and ecological indicators, in order to conduct the ecosystem-based fisheries assessment. In terms of socioeconomic indicators, five socioeconomic criteria were considered as important attributes of socioeconomic changes. These were economic production, business conditions, levels of income, the state of the market, and levels of employment. In order to establish reference points for the evaluation of indicators, target reference points and limit reference points were set through a comparison with other industries or other fisheries rather than by using the Traffic Light System (TLS) method, which has been used in many previous studies. In addition, on the basis of the application of developed indicators and reference points to the Korean large purse seine fishery, the socioeconomic conditions of the fishery and the usefulness of the indicators were evaluated and management implications were discussed.     

关于桦甸市农业政策性保险的调查及思考

实践证明,实施农业政策性保险在化解农业生产风险,增强风险防御能力,确保农业生产安全,提高财政支农资金效率等方面具有重要作用。特别是对于桦甸市这样一个具有丰富资源,发展潜力巨大的县级城市而言,深入开展农业政策性保险,对于调整农户种植结构,调动农民生产积极性,促进农业增资和推进新农村建设都具有重要意义。     

辅导员在高职“后进生”转化中心理效应的运用

高职“后进生”不良行为转化一般要经历醒悟、转变、反复、稳定等几个过程,辅导员在不同的阶段运用不同的心理效应可以帮助高职“后进生”更好地转化,矫正其不良行为.     

西方国家碳税收入使用政策比较及其启示

碳税收入使用政策是西方国家碳税制度设计的一项重要内容，其主要基于税收中性原则，将税收收入或投资于环保节能项目，或以税式支出方式降低纳税人负担，确保碳税收入的循环，实现节能减排的目标。在我国碳税制度设计的构想中，应借鉴西方国家税制经验，结合本国现实情况，科学合理地设计碳税收入使用政策，确保碳税调节功能的充分发挥，将碳税发展成培育战略性新兴产业的重要政策工具之一。     

新式墙面绿化在广州和深圳的应用研究

新式墙面绿化对日益缩减的城市绿化环境至关重要,通过实地调查广州和深圳30个新式墙面绿化场所,分析其种植形式、植物种类、植物配置与景观效果,总结出深圳和广州新式墙面绿化的植物应用现状和景观效果,并讨论其发展前景。     

滇西北退耕还林后续政策分析及发展对策

滇西北是云南省最为贫困的少数民族聚集地区之一,实行退耕还林政策10多年来取得了巨大的成效,随着退耕还林政策补助陆续到期,部分退耕农户生计将出现困难。对退耕还林后续政策进行分析,认为退耕还林补偿标准与现有物价水平不符,套种的规定过于保守,针对政策上的不足与实施过程中存在的作业设计不够规范、监管不力、档案管理不够规范等问题提出相关对策和建议。     

后危机时代中国人造板产业国际竞争力与决定因素的实证分析

在运用 RTA指数对中国人造板产业国际竞争力进行测度及国际比较的基础上，依据一般化双钻石模型构建人造板产业国际竞争力决定因素的计量模型，并利用34个国家2000—2011年间的面板数据和固定效应模型进行实证分析。结果表明：虽然受到2008年全球金融危机的负面冲击，但中国人造板产业仍具有较强的国际竞争优势；本国森林资源数量、木质原材料进口、劳动力资源禀赋、劳动力成本、技术创新、国内需求规模与质量、国际需求规模、交通运输业、人造板机械制造和外国投资限制是决定后危机时代人造板产业国际竞争力的关键因素。     

2014年棉花市场形势分析与展望

在政策调控下,2014年国内棉花供给充裕,市场需求整体疲软。棉花进口量大幅回落,纺织品服装出口增速明显回落。受需求不足以及棉花目标价格试点政策实施影响,国内外棉价大幅下降,内外价差明显缩小。后期国内外市场仍将维持弱势震荡格局。受棉价持续走低影响,全球棉花产量预计下降1.6%,中国棉花收获面积下降7.5%。     

In Vitro Evaluation of the Effects of Selected Plants on the Growth of the Mycelial Form of Histoplasma capsulatum Variety farciminosum in Ethiopia

Epizootic lymphangitis is prevalent in equines in Ethiopia, causing remarkable economic and welfare impacts but often neglected. Lack of effective treatment contributed to its continued occurrence, and hence, search for an effective treatment should be considered a priority area to minimize its impacts. Previous ethnobotanical studies have reported that Curcuma longa, Phytolacca dodecandra, and Datura stramonium were used to treat cutaneous fungal infections and reduce their incidence. The treatment effects of these plants against epizootic lymphangitis should be studied. The in vitro growth inhibitory effects of methanol extracts of the root of C. longa, berry of P. dodecandra, and leaf of D. stramonium were evaluated. Histoplasma capsulatum var farciminosum was isolated from clinical cases of epizootic lymphangitis in carthorses in central Ethiopia. The nested polymerase chain reaction was used to confirm the identity of the isolates. Serial twofold dilutions of the extract of berries of P. dodecandra and leaves of D. stramonium were done in sterile water, whereas dilution of the extract of roots of C. longa was done in dimethylsulphoxide. The effects of the plants on the growth of Histoplasma capsulatum var farciminosum were assessed by agar dilution assay. Culture media with no antifungal agent and media containing ketoconazole served as negative and positive control, respectively. The methanol extract of C. longa showed inhibitory effects at concentrations ranging from 0.07 to 5 mg/mL. Similarly, the methanol extract of P. dodecandra showed growth inhibitory effects at concentrations ranging from 0.156 to 5 mg/mL. That is, the growth inhibitory concentration of C. longa was 0.07 mg/mL, whereas that of P. dodecandra was 0.156 mg/mL. In contrast, D. stramonium showed no inhibitory effect. This preliminary observation showed that methanol extracts of C. longa and P. dodecandra showed inhibitory effects on the growth of Histoplasma capsulatum var farciminosum requiring further repeated in vitro evaluation so as to generate adequate evidence, which would justify in vivo trials.