Genome-wide association study of flowering time and grain yield traits in a worldwide collection of rice germplasm

A high-density haplotype map recently enabled a genome-wide association study (GWAS) in a population of indica subspecies of Chinese rice landraces. Here we extend this methodology to a larger and more diverse sample of 950 worldwide rice varieties, including the Oryza sativa indica and Oryza sativa japonica subspecies, to perform an additional GWAS. We identified a total of 32 new loci associated with flowering time and with ten grain-related traits, indicating that the larger sample increased the power to detect trait-associated variants using GWAS. To characterize various alleles and complex genetic variation, we developed an analytical framework for haplotype-based de novo assembly of the low-coverage sequencing data in rice. We identified candidate genes for 18 associated loci through detailed annotation. This study shows that the integrated approach of sequence-based GWAS and functional genome annotation has the potential to match complex traits to their causal polymorphisms in rice.     

地方立法监督方式科学化的现状与路径分析

由于种种原因,目前地方立法监督方式规范建设缺乏科学的体系性,没有具体的落实程序和机制,导致地方立法监督方式的独立价值没有获得表达。本文对具体的监督方式体系化和运行程序设计、多元监督主体的培育以及监督主体责任机制建设等问题进行分析,为地方立法监督方式走向科学化提供理论依据。     

Lattice-Based Double-Authentication-Preventing Ring Signature for Security and Privacy in Vehicular Ad-Hoc Networks

Amidst the rapid development of the Internet of Things(IoT), Vehicular Ad-Hoc NETwork(VANET), a typical IoT application, are bringing an ever-larger number of intelligent and convenient services to the daily lives of individuals. However, there remain challenges for VANETs in preserving privacy and security. In this paper, we propose the first lattice-based Double-Authentication-Preventing Ring Signature(DAPRS) and adopt it to propose a novel privacy-preserving authentication scheme for VANETs, offering the potential for security against quantum computers. The new construction is proven secure against chosen message attacks. Our scheme is more efficient than other ring signature in terms of the time cost of the message signing phase and verification phase, and also in terms of signature length. Analyses of security and efficiency demonstrate that our proposed scheme is provably secure and efficient in the application.     

关于提高英语口语能力的探讨

为了提高阳光双语小学六年级学生的口语能力,作者提出了3个阶段以利用课前5min培养学生的口语能力。     

广西壮族自治区青蒿生态气候适宜性区划

为有效指导广西青蒿（Artemisia annua L.）种植,本文结合文献,分析影响广西青蒿素（artemisinin）含量的主要气象要素,并建立了青蒿素含量-气象要素数学模型.利用地理信息系统的空间分析功能,选取与广西青蒿素含量相关性最高的17个气象要素,作为区划指标,对广西进行青蒿生态气候适宜性区划,划分出四级适宜区.可知广西西部和东北部的山区是最适宜青蒿生长的区域,青蒿苗期和花期时的气象要素对青蒿素含量的影响最大,花期时处于光照强度较高、温度相对较低、降水量较小区域内的青蒿中青蒿素含量较高.本文为广西青蒿种植适宜区域的选择提供了理论依据,对类似研究也具有参考意义.     

几类Riccati方程的求解

根据黎卡提(Riccati)方程与二阶变系数微分方程的关系,给出了几个可用初等方法求解的黎卡提方程的类型,并通过实例说明所给类型的黎卡提方程的求解.     

宫颈病变三阶梯式诊断与宫颈细胞学筛查

目的运用宫颈三阶梯式诊断程序，正确诊断宫颈病变。方法介绍宫颈病变的三阶梯式诊断程序：细胞学筛查-阴道镜检查-病理组织学诊断。结果正确运用三阶梯式诊断程序，能实现在子宫颈癌前诊断，阻断子宫颈癌的发生．有效降低宫颈癌的发病牢及死亡率。结论在宫颈病变的筛查工作中遵循宫颈病变三阶梯式诊断程序，能达到早期发现、早期治疗的目的。     

基于ANSYS的捆丝有限元分析

介绍了钢丝捆钢机的工作原理，利用ANSYS软件对捆丝在导槽中的受力、变形情况进行了分析。得到了捆丝在导槽中与轴承的支反力和变形，可以推出捆丝在导槽中的摩擦力，为进一步分析捆丝送丝力计算提供理论指导。     

论物权法平等保护原则的内涵

物权法作为民法典的一部分，其基本要求便是对权利人的权利进行平等保护。物权法首次将平等保护原则写入其中，是对《民法通则》第七十五条的深刻反思。必须改变传统民法对国家财产实行特殊保护的观念。公民合法取得的财产应当受到与对国家财产和集体财产同等的法律保护．使人民群众积累的财产能够受到切实的保障．这也是物权法引进这一原则的重要意义所在。鉴于此，有必要对这一原则的基本内容和科学内涵及应注意的问题作一些概括的分析。     

阳离子乳化沥青应用于道路养护

文章论述了乳化沥青的概念，详细叙述了乳化沥青在道路透层、黏层、路面防水层、稀浆封层和桥面防水层等部位中的应用情况。