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体育场馆多因子综合分级方法与分级模型的设计

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体育科学 1995年第6期15卷 73-76页

作者：胡效芳陕西师范大学体育系西安710062

以体育场馆的赢利率为一级评价因子,选取了接受项目弹性度、基础设施、地理位置、交通条件、配套设施、自然环境、功能替代弹性度7个评价因子为二级参数,在此基础上建立了体育场馆多因子综合分级模型。

关键词：体育场馆评价因子分级模型

Amelioration of intestinal ischemia reperfusion injury with intraintestinal hyper-oxygenated solution:studies on structural and functional changes of enterocyte mitochondria

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Amelioration of intestinal ischemia reperfusion injury with ...

2.08年中华医学会全国麻醉学术年会

作者： Chang-Jun Gao~1 Li-xian Xu~1 Wei Chai~2.Xu-De Sun~2.Hui Zhang~1 Gui-He Zhang~2.1 Department of anesthesiology,Stomatology Hospital,Fourth Military Medical university,xi’ an 710032.Shaanxi Province,china 2.Department of anesthesiology,Tangdu Hospital,Fourth Military Medical university,xi’an 710038,Shaanxi Province,china

AIM:To explore the effects of intraintestinal infusion hyper-oxygenated solution (HOS) on enterocyte mitochondrial structure and respiratory function after intestinal ischemia reperfusion (IR) in rabbits. METHODS:Thirty-two rabbits were divided randomly into four groups:control group in which sham operation was performed (Sham group),ischemia-reperfusion group (IR group) ,and two HOS treatment groups (H 1 group and H2.group).Intestinal IR model was established by clamping superior mesenteric artery (SMA) with an atraumatic vascular clamp for 1 h,and followed by reperfusion for *** in IR group received no HOS;animals in H1 group and H2.group received intraintestinal HOS infusion for lh immediately after occlusion of SMA,and the rates of infusion were 10 and 2.ml/kg.h *** 2. of reperfusion,the enterocyte mitochondria morphological quantitive analysis was made with electron microscopy and biogenetics stereology,and the following parameters including mitochondrial respiratory control ratio (RCR),intestinal O extraction ratio (ER) and mucosal ATP contents were measured ***:The mitochondria was severely swollen with broken cristae,and mean transaction area,diameter,surface density and volume density of the mitochondria increased significantly, meanwhile specific surface and numeral density of the mitochondria decreased significantly after intestinal IR *** mitochondrial RCR,intestinal O ER and mucosal ATP contents were all decreased *** were no differences in all parameters between IR group and HI *** H2.group,mitochondria was slightly swollen,and mean transaction area,diameter,surface density and volume density of the mitochondria were all significantly lower,specific surface and numeral density of the mitochondria were significantly higher compared with IR *** mitochondrial RCR,intestinal O ER and mucosal ATP contents in H2.group were all significantly higher than those in IR group. CONCLUSIONS:Int

关键词： Hyper-oxygenated solution Intestines Reperfusion injury Mitochondria Adenosine triphosphate

Synthesis of chitosan oligosaccharide selenium and its antitumor activity

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Traditional Medicine Research 2024年第10期9卷 10-20页

作者： Yu-Mei Chen Yan Yu Chen Yin-Yin Li Yue Bai Yang Dong Bing-Qiang Zhang Meng-Meng Chen xi-Feng Zhang Jing Liu College of Veterinary Medicine Qingdao Agricultural UniversityQingdao 266100China Qingdao Restore Biotechnology Co. Ltd.Qingdao 266111China Key Laboratory of Cancer and Immune Cells of Qingdao Qingdao 266111China Analytical&Testing Center of Qingdao Agricultural university Qingdao 266100China

Background:Polysaccharides have various biological activities;the complexation of polysaccharides with trace element ions can produce synergistic effects,improving the original biological activities of sugars and trace ***:The preparation process of chitosan oligosaccharide selenium(COSSe)was optimized by the response surface method,followed by a detailed analysis of the resultant compound’s *** anti-cancer activity of COSSe was studied using the human ovarian cancer cell line SKOV3 as a cell ***:The prepared COSSe response surface was well predicted,indicating successful chitosan oligosaccharide binding with *** surface method analyses identified the optimal synthesis conditions for COSSe:the reaction time of 5.08 h,the reaction temperature of 71.8°C,and mass ratio(Na2.eO3:chitosan oligosaccharide)of *** the optimal conditions,the final product,the selenium content,reached 1.302..The results of cell experiments showed that COSSe significantly inhibited SKOV3 proliferation in a concentration-dependent ***-seq results showed that chitosan oligosaccharide and COSSe significantly modulated the expression of genes’DNA metabolic processes and cell cycle in SKOV3 *** enrichment analysis showed the inhibition of the cell cycle,and the results of flow cytometry showed that SKOV3 cells increased in the S phase and decreased in the G2.M phase,with a noted suppression in the protein expression of cyclin-dependent kinase 2.CDK2.and cyclin A1(CCNA1).Conclusion:COSSe has a stronger effect than chitosan oligosaccharide,leading to the arrest of the cell cycle in the S ***,COSSe may be an effective candidate for the treatment of ovarian cancer.

关键词： chitosan oligosaccharide chitosan oligosaccharide selenium ovarian cancer SKOV3 RNA-seq

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华文水平测试阅读(高级)的结构效度研究

汉语学习 2024年第5期 93-102页

作者：王大壮郝丽霞刘骏东莞理工学院国际学院东莞523808 暨南大学广州510610 香港科技大学(广州) 广州511400

本文研究了华文水平测试(简称“华测”)阅读(高级)所考查的能力结构,并通过多组分析检验了该结构在男女群体上的稳定性。结果显示,华测阅读(高级)考查到了“字词解码”“句子理解”和“语篇理解”三种能力。被试的测试表现验证了测试的... 详细信息

本文研究了华文水平测试(简称“华测”)阅读(高级)所考查的能力结构,并通过多组分析检验了该结构在男女群体上的稳定性。结果显示,华测阅读(高级)考查到了“字词解码”“句子理解”和“语篇理解”三种能力。被试的测试表现验证了测试的理论假设,华测阅读(高级)的结构效度相对可靠。进一步看,华测阅读(高级)宜适当增加语篇阅读的题型题量,可将语篇阅读单列为一个模块。

关键词：华测阅读(高级) 结构效度华文阅读能力

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Positively Impelling Financial Innovation in china’s Rural Areas

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Positively Impelling Financial Innovation in China’s Rural ...

2.10 The 3rd International Conference on Computational Intelligence and Industrial Application (PACIIA2.10)

作者： Liwen Wang School of Economics and Finance xi’an Jiaotong university Shaanxi xi’an Nostate 710061 china

Lack of financial innovation in china’s rural areas has restricted rural economic development seriously. This thesis analyzes the characteristics of china’s rural finance, the features and current situation of innovation, as well as the factors hindering innovation. Furthermore, based on foreign exemplary, countermeasures and suggestions are proposed on advancing rural financial innovation in china, which include constructing financial innovation mechanism oriented by the market, impelling multi-level financial innovation, actively cultivating talents of financial innovation, creating favorable environment for innovation, and so on.

关键词： rural financial innovation system innovation innovation in vocational work

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公共财政框架下的农村税费改革

西北大学学报（哲学社会科学版） 2004年第6期34卷 77-81页

作者：邹艳武永义西北工业大学管理学院陕西西安710072 陕西省财政科学研究所陕西西安710002

建立公共财政体制是我国财政体制改革的重点,农村税费改革也必须以公共财政框架下的"纳税公平、征税公正、用税公开"的税收理念为指导思想向前推进。本文从公共财政角度审视了目前进行的农村税费改革,分析了其中所存在的与公共财政税收... 详细信息

建立公共财政体制是我国财政体制改革的重点,农村税费改革也必须以公共财政框架下的"纳税公平、征税公正、用税公开"的税收理念为指导思想向前推进。本文从公共财政角度审视了目前进行的农村税费改革,分析了其中所存在的与公共财政税收理念相悖的两个主要问题:农民税收负担与其享受的公共产品存在严重的不对等;税费关系不协调、税费关系不清。提出了公共财政框架下深化农村税费改革的基本思路:改革现行农业税制、统一城乡税制;将农村公共产品纳入财政的供给范围,对农民实行"国民待遇";理顺税费关系,建立基层政府收入的新机制;加快县乡公共财政建设,稳步推进配套改革。

关键词：公共财政农村税费改革公共产品

MACAULAYDURATION OF FIXED-RATE,CONSTANT PAYMENT LOAN

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MACAULAYDURATION OF FIXED-RATE,CONSTANT PAYMENT LOAN

The 4th International Conference on Management

作者： Luo Dawei, Wan Difang, Zheng xiaohong Management School, xi’an Jiaotong university, xi’an, china

Macaulay duration is an indicator that measures the sensitivity of security value to marketyield. Researches on Macaulay duration of fixed-rate, constant payment loan (FCPL) are very signifi-cant for commercial bank to manage and control interest rate risk of the loan. We consider two types ofFCPL, FCPL held to maturity and FCPL prepaid, and make a valuation of them, and then derive theclosed-form expressions and the general properties of Macaulay duration of them respectively.

关键词： Value Macaulay Duration Fixed-rate Constant Payment Loan (FCPL)

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高校网络意识形态安全研究述评

湖北开放职业学院学报 2024年第18期37卷 53-55页

作者：刘怡希甘肃中医药大学马克思主义学院甘肃兰州730101

本文以高校为研究的落脚点,系统梳理了当前国内外学界对高校网络意识形态安全问题的研究现状。研究发现,现有的相关研究成果常见于对高校网络意识形态安全的基础理论性研究、实证调查研究、多视角比较研究等。纵观现有科研成果,总体呈... 详细信息

本文以高校为研究的落脚点,系统梳理了当前国内外学界对高校网络意识形态安全问题的研究现状。研究发现,现有的相关研究成果常见于对高校网络意识形态安全的基础理论性研究、实证调查研究、多视角比较研究等。纵观现有科研成果,总体呈现出研究成果相对丰硕,范畴宽广而高质以及研究结论相对理想的良好态势,但仍存在研究问题带有重复性,缺乏辩证思维,宏观理论研究较多、微观实践研究相对较少的情况,在研究方法、研究领域、研究范畴等方面具有较大的拓展空间。

关键词：高校网络意识形态述评

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苯丙醇胺的合成工艺改进

吉首大学学报 2000年第3期21卷 91-92页

作者：蔡小华颜文斌刘鸿吉首大学生命科学与化学学院湖南吉首416000 西安近代化学研究所医药开发部陕西西安710065

以苯甲醛和硝基乙烷为起始原料 ,经缩合和催化加氢反应合成苯丙醇胺 ,制备时作了一些工艺改进 ,缩短了反应时间 ,提高了产率 ,总收率为 64.8% .

关键词： 2.硝基-1-苯基-1-丙醇苯丙醇胺合成