Research on China’s Fiscal Expenditure of Compulsory Education ——From the Perspective of Equalization of Basic Public Services

逐步实现基本公共服务均等化是建设和谐社会的重要途径，是党和政府在新的历史条件下的重要战略任务。义务教育作为基本公共服务的一部分，其均等化的实现有利于促进社会公平。现阶段，我国虽然在促进义务教育均等化方面取得了很多新进展，但是义务教育失衡的现实依然存在。首先，义务教育的有效供给不足，难以满足社会日益增长的需求。其次，由于我国地区经济发展不均衡，城乡二元化结构等因素，导致义务教育的发展在省际间、城乡间以及校际间存在明显的失衡。 如何通过优化义务教育财政支出来促进义务教育的均等化发展是一个重要的课题。本文综合运用基尼系数、泰尔指数等统计学工具，从财政支出角度入手，对我国义务教育在省际、省内、城乡间...Progressive realization of the equalization of basic public services is the important way of building a harmonious society. Moreover, in the new historical conditions, it is an important strategic task for the government. Compulsory education is a part of basic public services, and its equalization can boost social justice. At present, although a lot of progresses have been made in the equalizatio...学位：经济学硕士院系专业：经济学院财政系_财政学(含税收学)学号：1552007115011

综合化学实验——DMB的绝对不对称合成和表征

介绍一个可用于化学系本科生开设的综合化学实验。该实验构思源于手性对二甲氨基苯甲醛缩氨基苯硫脲(DMB)的绝对不对称合成。学生可通过实验发现、观察和探究手性对称性破缺的奇妙现象,并掌握标题化合物组成、结构和手性性质的各种表征方法,特别是固体圆二色(CD)光谱方法

Synthesis and chiral crystal structure of 1-[4-(dimethylamino)benzylidene]-4-phenylthiosemicarbazide

The reaction of 4-phenylthiosemicarbazide with p-dimethylaminobenzaldehyde produced 1-[4-(dimethylamino)benzylidene]-4-phenylthiosemicarbazide which was characterized by elemental analysis, IR, UV, H-1 NMR and XRD. The crystal belongs to orthorhombic system with space group P2(1)2(1)2(1) and a=0.77038(14) nm, b=1.1428(2) nm, c=1.6726 nm, V=1.4726(5) nm(3), Z=4, D-c= 1.346 g/cm(3), F(000)=632, mu=0.219 mm(-1), the final R=0.0407 and wR=0.1157 for 2807 observed reflections [I>2 sigma(I)]. The crystal structure and the solid-state circular dichroism spectrum showed that an enantiomer of the compound packs into the chiral crystal

Another chiral crystal structure of 1-[4-(Dimethylamino)benzylidene]-4-phenylthiosemicarbazide

Another chiral crystal of 1-[4-(dimethylamino)benzylidenel-4-phenylthiosemicarbazide (DMB) was obtained, and its absolute structure was determined by X-ray single crystal diffraction and the solid circular dichroism (CD) spectrum. The crystal belongs to orthorhombic system with space group P2(1)2(1)2(1) and a = 0.7870(2), b = 1. 1560(2), c = 1.6668(3) nm(3), V = 1.5164(5) nm, Z= 4, D-c=1.307 g/cm(3), F(000)=632, mu=0.213 mm(-1), the final R=0.0409 and wR=0.1061 for 2577 observed reflections [I > 2 sigma(I)]. The absolute structure can be determined well with the Flack parameter 0.00(9). The crystal structure and CD spectrum show that an enantiomer of the compound packs into the chiral crystal

N-(1-异喹啉)硫代亚胺碳酸乙酯荧光光谱的pH效应研究

A new compound,O-ethyl S-hydrogen N-isoquinolin-1-yl carbonothioimidate(OESIQY) was synthesized,the photophysical behavior in ethanol and water mixed solution at different pH values was studied by fluorescence spectroscopy.It was observed that OESIQY emitted strong fluorescence in its zwitterions.It was also found that by the protonation of nitrogen atoms of OESIQY the intramolecular photoinduced electron transfer(PET) took place in the solution. This PET process depended on the acidity of the solution

2,4-二羟基苯甲醛氨基葡萄糖Schiff碱锌配合物和锌离子抗菌活性的微量热法研究

用微量热法测定了大肠杆菌及其在２，４－二羟基苯甲醛氨基葡萄糖Ｓｃｈｉｆ碱锌配合物（Ｚｎ－２，４－Ｌ）和两种细菌在锌离子作用下的热谱；计算了在Ｚｎ－２，４－Ｌ作用下大肠杆菌的生长速率常数ｋ、传代时间Ｇ、代谢抑制率Ｉ、总产热量Ｑ、单个细胞的平均产热量Ｑ０和每分钟单个细胞的平均产热量Ｑ０；根据ｋ～Ｔ数据，拟合了ｌｎｋ～１／Ｔ方程，得到了大肠杆菌生长代谢的激活能Ｅａ和指前因子Ａ；由大肠杆菌生长代谢的参数作图拟合得到了ｔ～ｋ和ｔｒ～ｋ方程；计算了大肠杆菌和产气杆菌在锌离子作用下的生长速率常数ｋ、传代时间Ｇ、生长代谢抑制率Ｉ；探讨了细菌在不同条件下的生长代谢和化合物的抗菌活性。国家自然科学基金,高等学校博士学科点专项科研基

An Information Hiding Algorithm Against the Cropping Attack

提出了一种基于拉丁方阵的抗剪切信息隐藏算法,通过载体图像隐藏容量和秘密信息的大小确定隐藏秘密信息的备份数,根据备份数确定隐藏信息的拉丁方阵模板,对秘密信息进行分组和编号,通过拉丁方阵模板按对应的编号,将秘密信息嵌入到载体图像中,实现信息隐藏.实验结果表明该算法能够实现大容量隐藏并且能够抵抗大面积的剪切攻击,具有较好的应用价值. This paper proposes an anti--cropping steganography scheme based on Latin square. At first, the amount of secret copies is obtained by the cover image＇s hiding capacity and the length of the secret message. According to the amount of copies, a Latin square is confirmed as the template for hiding secret message. The secret message is divided into groups and each group is numbered. Then the secret groups are embedded into the cover image with the corresponding element in the Latin square. Experimental results indicate that the proposed scheme can achieve high capacity, and can be against the cropping attack. It has significant practical value for information security.国家自然基金（61363034,61300109）;广西自然科学基金（2011GXNSFD018026,2012GXNSFBA053166,0832104）;广西科学研究与技术开发计划项目（10123005--8）;重庆市教委科技项目（KJ121310）;涪陵区科技计划项目（FLKJ,2012ABA1056）;广西信息科学实验中心项目（20130204

Studies on the interaction for bovine serum albumin with benzoate by capillary zone electrophoresis-frontal analysis

将毛细管区带电泳-前沿分析技术(CzE-fA)用于测定苯甲酸钠与牛血清白蛋白(bSA)平衡体系中结合参数的研究。通过压力进样将苯甲酸钠和白蛋白混合液引入石英毛细管电泳柱,在20 MMOl/l硼砂缓冲液(PH=9.2)及20kV运行电压条件下,未结合苯甲酸钠的浓度可通过电泳平台峰的高度定量,两者具有良好的线性关系(相关系数r=0.998)。在数据处理过程中成功的采用SCATCHArd方程进行评价,得到了较好的结果。得到的苯甲酸钠与bSA的结合参数:结合位点是0.6235,结合常数是9259 l/MOl。A CZE-FA method was applied to the study of association parameters of benzoate to bovine serum albumin(BSA) under benzoate-BSA association equilibrium.After the direct hydrodynamic injection of a benzoate-BSA mixed solution into a coated capillary,benzoate is eluted as a zonal peak with a plateau region under conditions of 20 mmol/L sodium borate buffer(pH9.2) and 20 kV running voltage.The unbound concent ration of benzoate can be determined from the plateau peak height with good linear response,r= 0.998 for benzoate(n= 6).Six benzoate-BSA solutions were investigated.The Scatchard regression analytical method was used for the present CZE-FA system.The estimated association parameters were as follows: the number of BSA binding site n for benzoate was 0.6235,and the binding constant K was 9259 L/mol.2010年大学生创新性实验项目;龙岩学院第二批教育教学改革立项项目(岩学院教[2009]40号)资

1-[4-(二甲氨基)苯亚甲基氨基]-4-苯基硫脲的合成及手性晶体结构

对二甲氨基苯甲醛和苯基氨基硫脲缩合反应生成1-[4-(二甲氨基)苯亚甲基氨基]-4-苯基硫脲{1-[4-(dimethyl-amino)benzylidene]-4-phenylthiosemicarbazide},并从溶液中析出手性晶体.元素分析、红外光谱、紫外光谱、核磁谱、质谱和X射线衍射测定其组成和结构.晶体属正交晶系,P212121空间群,a=0.77038(14)nm,b=1.1428(2)nm,c=1.6726(3)nm,V=1.4726(5)nm3,Z=4,Dc=1.346g/cm3,F(000)=632,μ=0.219mm-1,可观测点精修最终偏离因子:R=0.0407,wR=0.1157.化合物的晶体结构和固态圆二色谱表明化合物在结晶过程中发生单一对映体的手性堆积

Synthesis of Caffeine Molecularly Imprinted Polymer Micro-spheres by Precipitation Polymerization and Their Properties Investigation

以咖啡因为印迹分子、丙烯酰胺(AM)为功能单体、乙二醇二甲基丙烯酸酯(EgdMA)为交联剂、偶氮二异丁腈(AIbn)为引发剂,沉淀聚合法制备印迹聚合物微球.考察印迹分子、引发剂、单体和介质的配比及介质的种类的影响,并用扫描电镜和红外光谱表征聚合物结构.结果表明,n(咖啡因)∶n(AM)∶n(EgdMA)=1∶4∶20时,在乙腈介质中所制备的印迹聚合物微球的粒径较小、形态与吸附性能较好、最大表观结合量为34.407 1μMOl/g.Molecularly imprinted polymers(MIP)were prepared by precipitation polymerization and caffeine used as imprinted molecules,acrylamide(AM)used as functional monomer,ethylene glycol dimethacrylate(EGDMA)used as crosslinker,and azobisisobutyronitrile(AIBN)used as evocator.The effects of reaction conditions were studied,such as the best ratio of desired molecule,evocator,monomer and agent,and the kind of agent were examined then polymers were tested by IR spectrum and scanning electron microscopy.The results showed that n(caffeine)∶n(AM)∶n(EGDMA)=1∶4∶20 with acetonitrile as solvent,grain size of microspheres was smaller,the shape and adsorption performance of microsphere were better,the maximum dissociation contents of MIP were34.41μmol/g.福建省自然科学基金资助项目(2013J01051); 龙岩学院“百名青年教师攀登项目”(LQ2013020