固相微萃取新技术在水分析中的应用

采用管内固相微萃取与气相色谱在线联用装置和固态吸附搅拌棒装置,对水中的正构烷烃及有机氯和有机磷农药进行了分析检测,结果表明该装置适于水中微量及痕量有机污染物的分析检测。     

洗衣文化

洗衣是日常生活中人们都要从事的一项家务劳动 ,主要操作者是女性。自古手洗衣服都要花费女人们较多的时间和精力。无论西方还是中国 ,传统的洗衣方式基本相同。自从洗衣机进入大部分家庭后 ,传统的手洗被机洗取代 ,妇女们有更多的时间从事自己喜欢的工作。     

分光光度法测定β-胡萝卜素胶囊中β-胡萝卜素的含量

本文采用分光光度法,测定了β-胡萝卜素胶囊中的β-胡萝卜素的含量,对照品和样品用氯仿溶解后,以氯仿为空白溶液于455nm的波长处进行含量测定,平均回收率97.0%,方法简便、快速、准确。     

加拿大高校治理模式对中国高等教育国际化的启示 ——以阿尔伯塔大学为例

加拿大高校独特的治理模式为其教育国际化水平提供了坚实的制度保障,明确的国际化战略、自下而上的国际化路径、以及强大的国际机构等为其教育国际化奠定了坚实基础。他山之石可以攻玉,我国高校可从其国际化的经验和做法中得到启示,在国际化观念提升和强化、广泛参与、队伍和机构建设等方面做出积极努力,促进我国高等教育国际化的大发展。     

交通运输与民族地区经济增长的相关性分析——以临夏为例

为寻求交通运输与民族地区经济增长之间的相关性,本文以甘肃省临夏回族自治州为例,运用相关分析和因果检验发现,货运需求与民族地区经济增长之间存在强相关性,而客运需求与民族地区经济增长之间不存在显著的因果关系。     

国内外癌症患者心理弹性研究及启示

心理弹性是近几年才提出的影响癌症患者希望水平及生存质量的心理因素。文章对心理弹性的国内外研究进行综述,探讨癌症患者心理弹性的影响机制和测量方法,有助于为临床心理研究提供理论基础和依据。     

Supply Constraint from Earthquakes in Japan in Input–Output Analysis

Disasters often cause exogenous flow damage (i.e., the [hypothetical] difference in economic scale with and without a disaster in a certain period) to production (“supply constraint”). However, input-output (IO) analysis (IOA) cannot usually consider it, because the Leontief quantity model (LQM) assumes that production is endogenous; the Ghosh quantity model (GQM) is considered implausible; and the Leontief price model (LPM) and the Ghosh price model (GPM) assume that quantity is fixed. This study proposes to consider a supply constraint in the LPM, introducing the price elasticity of demand. This study uses the loss of social surplus (SS) as a damage estimation because production (sales) is less informative as a damage index than profit (margin); that is, production can be any amount if without considering profit, and it does not tell exactly how much profit is lost for each supplier (upstream sector) and buyer (downstream sector). As a model application, this study examines Japan's largest five earthquakes from 1995 to 2017 and the Great East Japan Earthquake (GEJE) in March 2011. The worst earthquake at the peak tends to increase price by 10–20% and decrease SS by 20–30%, when compared with the initial month's prices/production. The worst damage tends to last eight months at most, accumulating 0.5-month-production damage (i.e., the sum of [hypothetical] differences in SS with and without an earthquake [for eight months] is 50% of the initial month production). Meanwhile, the GEJE in the five prefectures had cumulatively, a 25-month-production damage until the temporal recovery at the 37th month.     

从平宁藩之役看王守仁的军事思想

王守仁善于从政治角度去处理军事问题,在战争指导思想上十分重视谋略,在建军思想上强调选将用将,并将因材施教原则应用于军事训练．他将心学运用于军事之中是其军事思想最具特色之处．阳明心学虽属唯心主义体系,他的军事思想却具有唯物主义倾向．     

Online scheduling of equal length jobs on unbounded parallel batch processing machines with limited restart

We consider the online scheduling of equal length jobs on unbounded parallel batch processing machines to minimize makespan with limited restart. In the problem \(m\) identical unbounded parallel batch processing machines are available to process the equal length jobs arriving over time. The processing batches are allowed limited restart. Here, “restart” means that a running task may be interrupted, losing all the work done on it, and the jobs in the interrupted task are then released and become independently unscheduled jobs, called restarted jobs. “Limited restart” means that only a running batch that contains no restarted jobs can be restarted. For this problem, we present a best possible online algorithm.     

利益对法的决定作用新探

:利益与法的关系问题是马克思主义哲学理论中非常重要的内容。把利益主要归为经济基础的范畴来论述它对法的决定作用 ,力图从法反映利益、利益分化是法的来源和前提、统治阶级利益决定法的性质、利益变化发展决定法的变化发展、利益同化造成法的消亡这五个方面较全面地表述利益对法的决定作用