DEA-based anti-HIV immunotherapy model

Acquiredimmunitydeficiencysyndrome(AIDS)isoneofthemostfataldiseasesthathasspreadacrossthewholeworldsinceitfirstoccurred.Itiscausedbythehumanimmunodeficiencyvirus(HIV)[1].Mostofthechemotherapiesareaimedatkillingorhaltingthepathogen,butanewtreatmentistoreduceviralpopulationandimprovetheimmuneresponse.Thistreatmentcanboosttheimmunesystemandservetohelpthebodyfightinfectiononitsown,soitiscalledantiHIVimmunotherapy[2,3].TheaimofthisworkistofindefficientstrategiesforsuchtreatmentsusingtheDataEnv…     

Preface

Different from traditional tax audit, supervision with self-audit is a combination of audit by the taxpayer himself and audit by the tax authority. This paper mainly studies a taxpayer’s optimal policy of tax evasion under supervision with self-audit and its related properties, in order to deduce some effective suggestions and theoretical bases to restrain tax evasion. Assuming that only a certain proportion of evaded tax can be discovered when the audit is executed, the authors first formulate a static model with self-audit. This model is divided into two stages. At the first stage, taxpayers declare their taxes, then the tax authority chooses audit objects, based on a known probability, and announces the result; if the taxpayer is chosen, he will enter the second stage, during which he has a chance to pay the evaded tax and the corresponding late fees and then is audited by the tax authority. The authors show the existence and uniqueness of the optimal amount of tax evasion at the first stage and the optimal proportion to self-expose at the second stage. The authors also discuss the related properties of the interior solution, and do elasticity analyses on some parameters. Besides, the authors extend the static model into the corresponding two-period model, and study the existence and uniqueness of the solution of the extended model. Finally, under the assumption that tax evasion can only be discovered with a certain probability when the audit is executed, the authors formulate another static model with self-audit and investigate its properties. This research is partially supported by the National Natural Science Foundation of China under Grant Nos. 60674082, 70221001, and 70731003.     

市场经济,社会存在和社会意识

本文在辨析马克思关于社会存在、社会意识和市民社会等基本概念的基础上,通过中、西现代社会发展史的比较,指出了国家、社会以及国家意识、社会意识在不同历史背景下形成过程的巨大差异。中国社会发展的独特性要求它在现代化的进程中进行一次国家与社会的剥离和国家意识与社会意识的剥离与整合。市场经济体制的改革为这次剥离提供了现实的可能性、必要性和迫切性。正统的国家意识随着中国改革的发展,已显示出蜕化为反社会意识的危     

纳滤膜处理镀铬废水的实验研究

以重金属回收和废水回用为目的，研究了纳滤膜处理镀铬废水。本文讨论了操作压力、膜通量、CrO4^2-离子浓度以及浓缩过程等影响。由实验结果可知，操作压力对CrO4^2-离子的截留率影响较大，而CrO4^2-离子浓度以及浓缩过程的影响较小。在低压和废水浓度较低的情况下，CrO4^2-的截留率可达99％以上，从而实现了镀铬废水分离处理，并达到了回用目的。     

一类二阶时滞微分方程边值问题的正解

讨论一类二阶时滞微分方程边值问题{u″＋λf（x,u（x-）τ）=0,0＜x＜1,u（x）=0,-τ≤x≤0,u（1）=0,其中τ〉0，参数λ〉0．利用Krasnosel’skii不动点定理，得到了这类问题正解存在与不存在的充分条件．推广了文[7]关于时滞微分方程边值问题的工作．     

反相流动注射化学发光法测定盐酸小檗碱

在酸性条件下,盐酸小檗碱对联吡啶钌(Ⅱ)-铈(Ⅳ)反应体系的化学发光有显著的增强作用,据此建立了反相流动注射化学发光法测定盐酸小檗碱的新方法.对影响流动注射化学发光的各因素进行了实验研究,优化了反应条件和各项测定参数.结果表明,优化条件下,在质量浓度为1.0×10-7~1.5×10-5g/mL的范围内,相对发光强度与盐酸小檗碱的浓度成对数线性关系,检出限(3σ)为3.6×10-8g/mL,对浓度为1.0×10-6g/mL的盐酸小檗碱进行11次平行测定,相对标准偏差(RSD)为2.3%.本方法用于复方黄连素片剂中盐酸小檗碱含量的测定,具有良好的选择性,标准加入法的回收率在97.8%~101.5%之间.分析效率为140/h.     

O(3 P)与C2H2反应机理的量子化学研究

用量子化学计算方法对O(^3P)与C2H2的反应进行了研究．在HF／6—311 G(d，p)，HF／6—311 G(3df，3pd)，MP2／6—311 G(d，p)和MP2／6—311 G(3df，3pd)计算水平上，优化了反应势能面上各驻点的几何结构．通过内禀反应坐标(IRC)计算和振动分析．对反应过渡态进行了确认，并确定了反应机理．     

光滑流形在(Z2)2作用下信息为{(2,2,0),(2,0,2),(0,2,2)}的上协边类

设(Z2)^2作用于光滑闭流形M^n，其不动点集的法丛的信息为P＝{(2，2，0)，(2，0，2)，(0，2，2)}，Jn^4，2(P)是有代表元M^n且具有上述性质的n维上协边类[M^n]构成的集合．作者通过构造上协边环M0n的一组生成元决定了Jn^4，2(P)的群结构．     

Keggin结构过氧钛钨硅杂多配合物~(183)WNMR谱的研究

合成了Keggin结构一，三取代过氧铁钨硅杂多配合物，这两种化合物是：α－K6［SiW11（Tio2）O39］·12H2O和α－K9H［SiW9（TiO2）O39］·12H2O，并对183WNMR谱进行了指认，从而确定了2种过氧杂多配合物的基本结构．