野生动植物资源多样性保护的法制分析

本文对我国野生动植物资源多样性保护的现状和保护工作的进展进行了分析。指出野生动植物多样性保护存在的问题和对此专门立法的紧迫性,并对其立法可行性进行了法制分析,初步描述了立法的内容和当前应尽快实行的措施。

植物遗传资源保护的法制分析

本文对我国植物遗传资源保护的现状进行了分析。指出植物遗传资源保护存在的问题和对此专门立法的紧迫性,并对其立法可行性进行了法制分析,初步描述了立法内容和当前应尽快实行的措施。

我国极小种群物种保护法制分析

极小种群物种是指因长期受人类活动侵扰,栖息地退化而导致分布地域散碎或褊狭,种群衰退,现存个体数量极其稀少,已经低于最小存活种群,随时都会灭绝的野生动植物种类。通过分析我国极小种群物种的保护现状,指出极小种群物种保护所面临的主要问题。提出从确立预防原则、明确主管部门、摸清物种家底、强化生境保护几个方面来完善我国法律对极小种群物种的保护,并对其相关保护立法的必要性与可行性进行法制分析,探索适应新时期的物种保护方法。

反跨国洗钱犯罪法制的分析与完善

洗钱犯罪就是掩饰隐瞒犯罪活动资金来源并使之正当化的犯罪活动,是有组织犯罪的生命线。随着经济全球化和跨国有组织犯罪而演变为跨国有组织洗钱犯罪。但因为各国法律不同和利益驱动,跨国打击有相当难度。在现有国际公约和国际标准框架下,中国一方面要完善立法,另一方面要进行有效的跨地区和跨国反洗钱合作,以切断有组织犯罪的“生命线”。

财税法的衡平发展功能及其法治构造分析

目前,随着我国经济水平的不断提高,人均收入不断增长,而我国目前的社会主要矛盾也转变成了人民日益增长的美好生活需要和不平衡、不充分发展之间的矛盾。财税法作为一种社会利益本位性质的法律,对于目前社会经济发展的调控性也反映了财税法具有促进社会平衡发展的作用。针对此,本文对我国财税法的衡平发展功能及其法治构造进行了分析研究。

试论无因管理

我国《民法通则》关于无因管理制度的规定,对于解决民事法律纠纷、维护当事人合法权益发挥了一定的作用。但是,由于我国有关无因管理的民事法律制度条文少、规定过于简单,在实际操作中具有很大难度。在法律制度设计上要汲取世界各国的立法成果,加强无因管理法律制度中管理人权利义务的立法,弥补目前我国民法通则中管理人权利义务立法上的不足。

Local Recurrence of Low-Grade Myofibroblastic Sarcoma of the Chest Wall:Report of a Case and Literatures Review

Myofibroblastic sarcoma, composed primarily of myofibroblast, is a rare malignant tumor. Low-grade myofibroblastic sarcoma （LGMS） has been defined properly as a distinct entity in the 2002 WHO classification of soft tissue tumors. Primary sarcoma of the chest wall is also a rare disease. This article describes a case of locally recurrent LGMS of the chest wall.

Eukaryotic DNA damage tolerance and translesion synthesis through covalent modifications of PCNA

In addition to well-defined DNA repair pathways, all living organisms have evolved mechanisms to avoid cell death caused by replication fork collapse at a site where replication is blocked due to disruptive covalent modifications of DNA. The term DNA damage tolerance （DDT） has been employed loosely to include a collection of mechanisms by which cells survive replication-blocking lesions with or without associated genomic instability. Recent genetic analyses indicate that DDT in eukaryotes, from yeast to human, consists of two parallel pathways with one being error-free and another highly mutagenic. Interestingly, in budding yeast, these two pathways are mediated by sequential modifications of the proliferating cell nuclear antigen （PCNA） by two ubiquitination complexes Rad6-Rad18 and Mms2-Ubc13-Rad5. Damage-induced monoubiquitination of PCNA by Rad6-Rad18 promotes translesion synthesis （TLS） with increased mutagenesis, while subsequent polyubiquitination of PCNA at the same K164 residue by Mms2-Ubc13-Rad5 promotes error-free lesion bypass. Data obtained from recent studies suggest that the above mechanisms are conserved in higher eukaryotes. In particular, mammals contain multiple specialized TLS polymerases. Defects in one of the TLS polymerases have been linked to genomic instability and cancer.

Necroptosis in inflammatory bowel disease and other intestinal diseases

Guo-Qiang XuFor a long time, it was believed that apoptosis and necrosis were the main pathways for cell death, but a growing body of research has shown that there are other pathways. Among these, necroptosis, a regulatory caspase-independent, programmed cell death pathway, is supposed to be of importance in the pathogenesis of many diseases. The mechanism of regulating, in-ducing and blocking necroptosis is a complex process that involves expression and regulation of a series of molecules including receptor interacting protein kinase 1 （RIPK1）, RIPK3, and mixed lineage kinase like protein. By blocking or downregulating expression of key molecules in the necroptotic pathway, intestinal inflammation can be affected to some extent. In this paper, we introduce the concept of necroptosis, its main pathway, and its impact on the pathogenesis ofinfammatory bowel disease （IBD） and other intestinal diseases, to explore new drug targets for intestinal diseases, including IBD.

Genetic analysis of fertility restoring genes for AL-type male sterility in wheat

In order to screen molecular markers linked to fertility restoring genes and further improve the breeding efficiency of restorer lines, in this study, wheat varieties 18A, 18B and 99AR144-1 were used as experimental materials to establish F2 fertility-segregating population. Plant quantitative trait ＂major gene ＋ polygene mixed mo- del＂ separation analysis method and simple sequence repeat （SSR） molecular markers were adopted for genetic analysis of four generations, including the parents （P~ and P2）, and hybrid （G and G） populations. The results show that AL-type fertility restoring gene is controlled by two pairs of additive-dominant-epistatic genes and addi- tive-dominant polygene; two primers linked to fertility restoring genes were selected by SSR molecular markers, including Xgwm95 on chromosome 2A and Barc61 on chromosome 1B, with the linkage distance of 15.0 cM and 18.0 cM, respectively. Based on verification, these two markers are reliable for distinguishing AL-type wheat ste- rile lines and restorer lines.

Application of Meta-Analysis in Evidence-Based Oncology

The Cochrane Collaboration is an international not-for-profit and independent organization, dedicated to providing up-to-date evidencebased information about the effects of healthcare in the form of systematic reviews. Meta-analysis is a statistical tool to prepare the systematic reviews. This paper briefly introduces the above terms and how to apply evidencebased oncology. Recent findings by using meta-analysis for cancers of the breast, lung, colon, liver, stomach and cervix uteri were reviewed in three cancer fields, viz., etiologic research, screening and therapy.

APPLICATION OF GRAY EVALUATION MODEL BASED ON AHP IN ATM SYSTEM

This paper presents a hierarchy model of Air Traffic Management (ATM) according to the security requirements in ATM system, analyzes it by grey assessment and Analytic Hierarchy Process (AHP), and evaluates it in details. It also provides theoretical support for building an effective evaluation system. The basic idea is to use AHP and Grey Assessment to obtain the weights of the indicators, and count grey evaluation coefficients with whitening function. The compositive clustering coefficients are obtained by combining the weights and the grey evaluation coefficients. Evaluation result can be gotten from the compositive clustering coefficients.

Preparation of BaAl_2O_4 by microwave sintering

The desulfurater(BaAl2O4) was successfully synthesized with BaCO3 and Al(OH)3 powders as raw materials by microwave sintering method.The mass loss of raw materials and the characterization of the outcome were investigated by means of TG-DSC,XRD and optical microscopy.The reaction mechanism was discussed.The experimental results show that synthesized BaAl2O4 by microwave sintering method is feasible.Compared with conventional sintering method,microwave sintering is a better way to synthesize BaAl2O4 with advantages of low temperature sintering,short time sintering and high synthesis rate.

Numerical Analysis of Finite Deformation of Overbroken Rock Mass in Gob Area Based on Euler Model of Control Volume

The overbroken rock mass of gob areas is made up of broken and accumulated rock blocks compressed to some extent by the overlying strata. The beating pressure of the gob can directly affect the safety of mining fields, formarion of road retained along the next goaf and seepage of water and methane through the gob. In this paper, the software RFPA＇2000 is used to construct numerical models. Especially the Euler method of control volume is proposed to solve the simulation difficulty arising from plastically finite deformations. The results show that three characteristic regions occurred in the gob area： （1） a naturally accumulated region, 0-10 m away from unbroken surrounding rock walls, where the beating pressure is nearly zero; （2） an overcompacted region, 10-20 m away from unbroken walls, where the beating pressure results in the maximum value of the gob area; （3） a stable compaction region, more than 20 m away from unbroken walls and occupying absolutely most of the gob area, where the beating pressures show basically no differences. Such a characteristic can exolain the easy-seeoaged “O”-ring phenomena around mining fields very well.

Seasonal variation of the Taiwan Warm Current Water and its underlying mechanism

Based on the historical observed data and the modeling results,this paper investigated the seasonal variations in the Taiwan Warm Current Water(TWCW)using a cluster analysis method and examined the contributions of the Kuroshio onshore intrusion and the Taiwan Strait Warm Current(TSWC)to the TWCW on seasonal time scales.The TWCW has obviously seasonal variation in its horizontal distribution,T-S characteristics and volume.The volume of TWCW is maximum(13746 km^3)in winter and minimum(11397 km^3)in autumn.As to the contributions to the TWCW,the TSWC is greatest in summer and smallest in winter,while the Kuroshio onshore intrusion northeast of Taiwan Island is strongest in winter and weakest in summer.By comparison,the Kuroshio onshore intrusion make greater contributions to the Taiwan Warm Current Surface Water(TWCSW)than the TSWC for most of the year,except for in the summertime(from June to August),while the Kuroshio Subsurface Water(KSSW)dominate the Taiwan Warm Current Deep Water(TWCDW).The analysis results demonstrate that the local monsoon winds is the dominant factor controlling the seasonal variation in the TWCW volume via Ekman dynamics,while the surface heat fl ux can play a secondary role via the joint ef fect of baroclinicity and relief.

Thermodynamic analysis on the direct preparation of metallic vanadium from NaVO_3 by molten salt electrolysis

A novel and environmentally friendly route to directly prepare metallic vanadium from NaV03 by molten salt electrolysis is proposed. The feasibility about the direct electro-reduction of NaV03 to metallic vanadi- um is analyzed based on the thermodynamic calculations and experimental verifications. The theoretical decomposition voltage of NaV03 to metallic vanadium is only 0.47 V at 800 ℃ and much lower than that of the alkali and alkali earth metal chloride salts. The value is slightly higher than that of low-valence vanadium oxides such as V203, V305 and VO. However, the low-valence vanadium oxides can he further electro-reduced to metallic vanadium thermodynamically. The thermodynamic analysis is verified by the experimental results. The direct preparation of metallic vanadium from NaV03 by molten salt electrolysis is feasible.

An Optimization Design of a Weft Insertion Mechanism for Rapier Looms

By analyzing a combined and spatial 6-bar linkage weft insertion mechanism, its practical model for optimization design is set up and the modification of penalty strategy is put forward so that the genetic algorithm can be better used in optimization design for mechanisms with non- linear constraints. The design result is discussed.

Teaching method for reading views by analyzing lines and planes

This paper deals with the teaching method in reading engineering drawing. It introduces the basic theory and fundamental ideas as well as the approach of reading views by analyzing lines and planes. It gives out the steps for completing the third view based on the other two views. As it is easy and quick for students to read and understand views by this method, it is welcome by students in teaching practice.

Study on Support Vector Machine Based on 1-Norm

The model of optimization problem for Support Vector Machine(SVM) is provided, which based on the definitions of the dual norm and the distance between a point and its projection onto a given plane. The model of improved Support Vector Machine based on 1-norm(1-SVM) is provided from the optimization problem, yet it is a discrete programming. With the smoothing technique and optimality knowledge, the discrete programming is changed into a continuous programming. Experimental results show that the algorithm is easy to implement and this method can select and suppress the problem features more efficiently. Illustrative examples show that the 1-SVM deal with the linear or nonlinear classification well.