65 research outputs found

    浅析拉美新社会运动的新特征与新路径

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    本文剖析了拉美新社会运动形成的原因、背景及其表现形式,认为该运动开辟了反新自由主义、反资本主义全球化的新形式、新路径。不同于传统激进左派运动的主体构成,拉美新社会运动涵盖了更为广泛的社会异质性群体的抵抗行动;从斗争旨趣和运动方式看,不是通过革命政党组织阶级斗争来夺取国家政权,而是由一种不规范的、体制外的斗争形式发展成为一种被制度化、纳入到常态政治轨道的斗争形式,成为公民表达利益诉求和维护民主权利的新渠道;倾向于向传统等级制的政治机构寻求自治社会组织权;形成凝聚族群认同和文化认同的共同意识来维系组织自身的运转。在西方新自由主义和“华盛顿共识”双重碾压下,拉美国家以独立的、真正的政治民主化为目标的社会运动仍面临诸多挑战。中央高校基本科研业务费项目“世界社会主义运动的历史经验与当前面临的问题”(220140022

    我国股指期货推出的市场条件已经成熟

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    2004年4月,经国务院同意,中国证监会近日已批准上海期货交易所上市燃料油期货品种;2004年2月,国务院《关于推进资本市场改革开放和稳步发展的若干意见》正式颁布,明确提出“研究开发与股票和债券相关的新品种及其衍生产品”,这些决定为股指期赁等金融衍生品的推出打开了政策空间。研究就推出股指期货的市场条件,论证了我国已经基本达到要求,分析认为应该抓住有利时机,尽快推出股指期货

    The Experimental Study on Flow Boiling Heat Transfer of Working Fluid R245fa in Horizontal Tube

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    设计了管内沸腾换热系数及总传热系数测定试验台架,对R245fa工质在内径6 mm水平光管内的流动沸腾换热特性进行试验研究。测试质流密度为50 ~; 150 kg /(m~2·s),工质蒸发温度为50, 60和70℃。结果表明:; 随着工质含汽率的增加,R245fa的流动沸腾换热系数呈先增大后降低趋势。对于304不锈钢套管式换热器,烟气与R245fa工质进行换热的总传热系数; 约在40 ~ 65 W/(m~2·K) 。A bench - scale facility was designed for testing the flow boiling heat; transfer coefficient and the total heat transfer coefficient. The; boiling heat transfer characteristics of the R245fa refrigerant were; studied in a horizontal smooth tube with 6 mm inner diameter. The; parameters investigated were mass flow rate (50 ~ 150 kg /(m~2·s)),; evaporation temperature (50, 60 and 70 ℃). The results showed that the; flow boiling heat transfer coefficient of R245fa increased with the; increase of rate of vapor content, and decreased slightly with the; further increase of rate of vapor content. The total heat transfer; coefficient of the flue gas and the R245fa is about 40 ~ 65 for the 304; stainless steel heat exchanger.国家国际科技合作专项资助项

    红毛藻藻蓝蛋白的提取方法研究

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    采用多种方法从红毛藻中提取藻蓝蛋白。研究表明,组织捣碎法破碎细胞效率较高,60%饱和度硫酸铵盐析效果较好,并确定了最佳的提取工艺线路。Different methods were tested to extract phycocyanin from the red alg a Bangia fusco -pururea.It was proven that tissue -trifurcation method had the hig hest efficiency for cell frag mentation compared with other methods,and ammonium sulfate at saturation deg ree of 60%had much better salting -out effect.The best extraction procedure was also obtained.集美大学校内基金资助(F01023

    Effects of tributyltin on alkaline phosphatase,aaciphosphatase andadenosine triphosphatase gill activity of digestive gland in clam Meretrix meretrix

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    在实验生态条件下,观察浓度分别为0.1、1.0和10ng/L的三丁基锡(TBT)暴露2、8、20d以及恢复7d和20d后对文蛤鳃酸性磷酸酶(aaciphosphatase,ACP)、碱性磷酸酶(alkalinephosphatase,AKP)以及Na+,K+-ATPase活性的影响。结果显示在暴露早期TBT不影响ACP、AKP活性,暴露时间延长则主要表现出诱导作用。TBT具有抑制Na+、K+-ATPase活性作用,可观察效应浓度为0.1ng/L。Na+、K+-ATPase可作为一种潜在的有机锡污染监测的生物标志物。The effects on alkaline phosphatase, aaciphosphatase and Na~+K~+-ATPase activities in the gill of Meretrix meretrix, which was exposed to tributyltin (TBT) at the environmental levels (0.1ng/L, 1.0ng/L, 10ng/L as Sn) for 2, 8, 20 days and recovered for 7, 20 days, were evaluated. The results showed that the activities of alkaline phosphatase, aaciphosphatase were no effect at earlier exposure period, and were principally inducted with prolonged exposure time. The activities of Na~+,K~+-ATPase in Meretrix meretrix were inhibited after exposure to TBT. The lowest observable effect concentration for Na~+K~+-ATP were 0.1 ng /L. Na~+,K~+-ATPase could be a potential biomarkers to monitor the organotins pollution.厦门大学细胞生物学与肿瘤细胞工程教育部重点实验室开放基金资助(2004109

    类泛素蛋白及其中文命名

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    泛素家族包括泛素及类泛素蛋白,约20种成员蛋白.近年来,泛素家族领域取得了迅猛发展,并已与生物学及医学研究的各个领域相互交叉.泛素家族介导的蛋白质降解和细胞自噬机制的发现分别于2004和2016年获得诺贝尔奖.但是,类泛素蛋白并没有统一规范的中文译名. 2018年4月9日在苏州召开的《泛素家族介导的蛋白质降解和细胞自噬》专著的编委会上,部分作者讨论了类泛素蛋白的中文命名问题,并在随后的\"泛素家族、自噬与疾病\"(Ubiquitinfamily,autophagy anddiseases)苏州会议上提出了类泛素蛋白中文翻译草案,此草案在参加该会议的国内学者及海外华人学者间取得了高度共识.冷泉港亚洲\"泛素家族、自噬与疾病\"苏州会议是由美国冷泉港实验室主办、两年一度、面向全球的英文会议.该会议在海内外华人学者中具有广泛影响,因此,参会华人学者的意见具有一定的代表性.本文介绍了10个类别的类泛素蛋白的中文命名,系统总结了它们的结构特点,并比较了参与各种类泛素化修饰的酶和它们的生物学功能.文章由45名从事该领域研究的专家合作撰写,其中包括中国工程院院士1名,相关学者4名,长江学者3名,国家杰出青年科学基金获得者18名和美国知名高校华人教授4名.他们绝大多数是参加编写即将由科学出版社出版的专著《泛素家族介导的蛋白质降解和细胞自噬》的专家

    A CASE OF ILEUS BY THE INFECTION OF TYPE X LARVAE OF THE SUBORDER SPIRURINA AFTER EATING RAW FIREFLY SQUIDS

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    A 53-year-old male was hospitalized on April 12th, 2002 because of an upper abdominal pain that started in the morning of April 11th and gradually worsened. Ileus was suspected based on an X-ray of the abdomen. A medical interview revealed that the patient had eaten raw firefly squids, 2 days before the hospitalization. The abdominal symptoms disappeared in a few days during which the patient was treated conservatively. A specimen from the patient's sera reacted with the esophageal glands in frozen sections of a type X larva of the suborder Spirurina. The infection of the type X larvae of unidentified splruroid nematodes from squids was considered to be the cause, because those larvae have recently been to reported as the cause of visceral and cutaneous. Although the infection rate in W. scintillans is relatively low, a risk of human infection with type X larvae should be taken into a consideration in the consumption of raw squids

    我国冬夏季硫污染物沉降与跨地区输送模拟研究

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