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Search Results: 1 - 10 of 189114 matches for " 陈瑞 "
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植物对土壤中镉毒害的响应研究进展
The Current Research Progress on the Plant Response to Cadmium Enriched in Soil
 [PDF]

, 郭晓
Botanical Research (BR) , 2014, DOI: 10.12677/BR.2014.33016
Abstract:

在我国的重金属土壤污染中,镉(Cd)污染是危害性最大的,因此有关植物对镉胁迫的耐受性机制一直是人们研究的热点,其中多数研究主要是针对单一Cd胁迫进行的,但是在自然环境下Cd通常与铜(Cu)、锌(Zn)等其它重金属共同富集在土壤中,给重金属污染修复带来很大困难。本文主要从Cd污染的危害、植物自身抗性及Cd与其它金属元素的相互作用等方面做出了简要综述,对重金属土壤污染的研究提出了发展和展望。
The heavy metal cadmium (Cd) enriched in soil is one of the most harmful pollution issues in the whole world. The most of the research related to plant response to Cd stress mainly focus on Cd stress alone, ignoring the question that multiple kinds of heavy metals including Copper (Cu), Zinc (Zn) frequently combined with Cd in soil in the natural environment. It has brought great difficulties in governance. Here, we combine the recent research reports from the aspect of Cd harm, the resistance of plant and the interaction with other metal elements under Cd stress to make a brief summary. Then, the development and prospect in heavy metal contamination of soil research were proposed.



程序化死亡在植物发育和环境适应过程中的功能
The Functions of Programmed Cell Death during Plant Development and Environmental Adaptation
 [PDF]

丹丹, , 郭晓
Open Journal of Nature Science (OJNS) , 2014, DOI: 10.12677/OJNS.2014.22003
Abstract:

植物程序化死亡是植物在生长发育和环境适应过程中的自发性死亡过程,近年来已成为国内外学者关注的热点。大量研究表明,植物程序化死亡进程对植物生长具有重要意义,主要表现为诱导植物细胞死亡来达到改变植物结构特性、启动一系列逆境响应基因等。本文主要从程序化死亡与植物营养生长的关系,程序化死亡的相关信号分子,典型逆境胁迫盐胁迫下程序化死亡的作用及主要采用的研究技术等方面做出了简要综述,最后对程序化死亡的研究方向和发展意义提出了展望。
Programmed cell death (PCD) in plants is a kind of the spontaneous cell death events, which commonly occurs in plant developmental process and environmental adaptation. The study of plant PCD has become a hot issue of scholars at home and abroad in recent years. Accumulating evidences show that plant PCD process is tightly associated with plant growth, and this event can help plant change structure property, activate cascade of genes involved in stress-response genes. In this review, recent research progress with respect to the correlation between plant vegetative growth and PCD, the PCD-related signaling molecules, the function of PCD during plant typical adversity stress responses of salt stress and the innovative methods implicated in the plant PCD research. Ultimately, we raised some outlook regarding the trends and significance of PCD investigation in plants.

明清时期徽州宗族对族人的职业控制

安徽大学学报(哲学社会科学版) , 2008,
Abstract:
明清时期徽州宗族中的房长及其权力

安徽大学学报(哲学社会科学版) , 2010,
Abstract: 房长是族长之下徽州宗族领导层的重要成员,根据宗族内部分层管理的制度设计,他们对宗族内外事务拥有一定的控制权,对所在房乃至宗族的内部管理和运作发挥着重要作用。明清时期,徽州宗族中房长的权力主要包括族内行政事务管理权、族内经济生活监督控制权、宗族对外交涉权等。房长尽管拥有权力,但若玩忽职守、发生闪失,要负一定的连带责任。对过失房长等宗族领导层成员的惩戒,在一定程度上有助于遏制宗族自治中的不利因素,使徽州宗族沿着稳定有序的轨道向前发展。
明清时期徽州境内的保甲制度推行与保甲组织编制

安徽大学学报(哲学社会科学版) , 2012,
Abstract: 明清时期,徽州地方官和宗族、乡绅积极推行保甲制,并将保甲与当地的乡约、里甲、团练、宗族等组织相结合。在保甲编制过程中,既遵守朝廷设定的十进制原则,又执行官方倡导的“通融编列”等灵活性原则,组织编造了保甲门牌、十家门牌、保甲册、循环册、棚民册、另户册等各类门牌册籍,这些门牌册籍的登载范围和内容虽稍有差别,但皆反映了徽州地方官府对民间社会控制的严密程度。
明清时期徽州族谱的控制功能

安徽大学学报(哲学社会科学版) , 2007,
Abstract: 徽州宗族作为一种社会组织形态,发展至明清时代,其对族人的控制与管理的功能日渐强化。在这一过程中,徽州族谱的功能也较前发生了变化,由原先相对较为单纯的族史文献发展为过于突出“谱法劝惩”功能的教化文本。明清时期,仕宦、乡绅、商人等徽州宗族精英分子之所以积极参与族谱编纂活动,其主要目的之一即在于利用族谱加强族内控制。以社会控制为视角来讨论明清徽州族谱的功能,似更有助于揭示这一时期徽州族谱的本质。
元代徽州路的手工业

安徽大学学报(哲学社会科学版) , 2009,
Abstract: 元代徽州路境内的手工业主要有矿冶、丝织、酒醋酿造、文房四宝制造、刻书等,其中尤以文房四宝制造、刻书等行业较为发达。官府经营和民间经营是元代徽州手工业生产经营的主要形式。官府手工业生产规模相对较大,管理控制严格,官僚化倾向严重。民间资本与人力的投入和参与,使刻书业等民营手工业获得发展。元朝政府对徽州路手工业课税较重,在一定程度上束缚了它们的发展。
明清徽州宗族执事人员的经济管理活动

安徽大学学报(哲学社会科学版) , 2013,
Abstract: 执事人员是明清徽州宗族社会中人数众多、称谓与名目繁杂的一类人群,作为所在宗族族务管理运作系统中的重要一员,他们十分关心并积极参与族内经济事务的管理。明清徽州宗族执事人员的经济管理活动主要涉及租粮的征收和收租比例的确定,赋税的输纳,祭仪的买办,族产的登记、收支、买卖、生息与查核,义租谷的管理与发放,功名胙与功名奖励银的发送,宗族公匣制度的运作,族内经济和财务活动的监督等方面。在经济管理过程中,明清徽州宗族内部执事人员相互之间协同发挥作用,进行着必要的分工、协调与配合。为防止执事人员在经济管理过程中徇私舞弊或玩忽职守,明清徽州宗族制订了诸多规范性条款,予以约束。在明清徽州宗族精心设计与规范运作下,各类执事人员在宗族经济事务管理中发挥了各自应有的作用,在一定程度上推动了所在宗族社会经济的良性有序运转。
地方政府举债影响工业经济增长的空间效应研究
A Spatial Effect Study on Industrial Economic Level of Local Government Debts


- , 2017,
Abstract: 通过构建了地方政府举债影响工业经济增长的理论模型,并分析两者呈正向相关的作用机制;基于空间关联模型,采用2010-2015年全国30个省份地方政府债务的面板数据,对地方政府举债的工业经济增长效应进行实证研究。结果表明:(1)地方政府举债对工业经济增长具有显著的促进作用。地方政府通过对国有土地的绝对垄断来经营城市,利用土地抵押融资来大规模举债,并改善城市基础设施吸引投资,促进工业经济增长;(2)地方政府举债对地区工业经济增长的溢出效应不明显。地方政府债务主要投向了市政建设、交通运输等基础设施建设领域,对邻近地区的工业经济发展很难起到推动作用。
A mathematical model are built for the analysis of the mechanism of local government debts on promoting industrial growth from a theoretical perspective. Based on spatial correlation model, China's provincial panel data from 2010 to 2015 about local government debts are applied to make the empirical research of local government debts' effect on industrial economic growth. Results indicate that local government debts have positive influence on industrial economic level significantly. Local government made construction land prices lower by making differential distribution of state-owned construction land, and put most of the debt income into strengthening infrastructure construction which realize the investment promotion and industrial economic development. And the spatial spillover effect of local government debts on industrial economic growth is insignificant. Local government debts are mainly used to the municipal construction, transportation and other infrastructure construction field, which inform a large number of effective assets with long-term profits, but these assets are hard to play an important role in promoting economic development for the industry economic level of adjacent areas. These conclusions are valuable for making relevant policies on China's local debts and simulating economy.
一类非线性阻尼Petrovsky方程整体解的能量衰减估计
Energy Decay Estimate of Global Solution for a Class of Nonlinear Damping Petrovsky Equations
 [PDF]

,, 钞雅丽
Pure Mathematics (PM) , 2015, DOI: 10.12677/PM.2015.51003
Abstract:
本文主要研究非线性阻尼Petrovsky方程ua2u+a(1+|ut|r)ut=b|u|pu在有界区域的初边值问题。利用V. Komornik引理得到整体解的能量衰减估计。
The nonlinear damping Petrovsky equation ua2u+a(1+|ut|r)ut=b|u|pu with initial-boundary conditions on bounded region is studied. The V. Komornik lemma here plays a crucial role in the energy decay estimate of global solution.
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