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1.
People have the demands to know their environment and orientation in their social relations and the urban landscape must content them with such demands. In this paper, the space feature and landscape levels of the mountain are analyzed. From the natural landscape and humanistic landscape aspects, in this paper, the diversification, place and environment of landscape levels in mountain space is inquired into and the essentials of the control on landscape in mountain cities are pointed out. 相似文献
2.
N-亚硝胺类化合物与食品安全性 总被引：10，自引：0，他引：10
综述了N-亚硝胺类化合物的种类及理化性质,以及食品中N-亚硝胺的污染状况、污染来源、毒性与危害和在食品中的限量标准,并探讨了对减少其危害的预防措施。目前约有100种亚硝胺,经动物实验证明80%以上具有致癌作用和具有明显的亲器官性。如二甲基、二乙基亚硝胺经口摄入可引起肝癌,二乙基亚硝胺还可以引起肾癌和食管癌。正因为亚硝胺能引起各种动物器官和组织肿瘤,近来研究表明,有些N-亚硝基化合物与人类的食管癌和胃癌等的发生有密切关系。 相似文献
3.
Tomato leaf curl Bangladesh病毒完整基因组上微卫星分布 总被引：3，自引：1，他引：2
为了展示Tomato leaf curl Bangladesh病毒完整基因组上的微卫星分布特性。借助MATLAB软件、应用最优完全子图算法,提取并展示NCBI数据库中Tomato leaf curl Bangladesh病毒完整基因组(AF_188481.1)上的微卫星分布特性,计算1-碱基组至6-碱基组在完整基因组序列上重复出现的次数和位置,展示它们的分布规律(指数函数)。结果表明:Tomato leaf curl Bangladesh病毒完整基因组(AF_188481.1)上各种N-碱基组(N取1至6)最大的重复出现次数,随N按指数函数数减少;笔者提取和展示Tomato leaf curl Bangladesh病毒完整基因组序列微卫星分布特性(特别是微卫星各种N-碱基组重复出现的位置和次数)的方法,可以系统地运用到其他病毒完整基因组序列微卫星分布特性的提取和展示中,从而为有效利用微卫星分布特性研究完整基因组的结构和功能、遗传和变异规律提供完备、仔细的数据支撑。 相似文献
4.
Yulin River is the major secondary stream of Three Gorges Reservoir Area. According to the requirement of "The Prevention Plan of Water Pollution in Three Gorges Reservoir Area and the Upper Areas (2001-2010)", the water environment pollution in Yulin River valley should be controlled. In this paper the reason of the water pollution is analyzed through investigation and evaluation on the present situation of Yulin River in North Chongqing area, and then a proposal on the prevention and cure measure of water pollution of Yulin River is presented. 相似文献
5.
Dong Qiang 《保鲜与加工》1993,(1)
Since 1988, air temperature, humidity, air quality, noise level and intensity of illumination in lots of dancing halls in China have been investigated and tested. This paper introduces the present situation of indoor environment and air conditioning systems in dancing halls of China. The design indexes of cooling load for room and ontside air are recommended. The reasons for indoor environment deterioration have been found out. From the actual situation of China, the ways for imoroving indoor environment and approach of energy conservation in air conditioning systems are explored. 相似文献
6.
新生代农民工的未来认同及其影响因素研究——基于青岛的问卷 总被引：1，自引：1，他引：0
根据对青岛某纺织厂的问卷调查和深度访谈,深入分析新生代农民工未来认同的现状及其影响因素。新生代农民工目前对市民身份有所期待,但认同度不高;对未来归属地有目标,但归属感不强烈,表现出期待与徘徊并存的现状。文章从制度政策、社会环境和新生代农民工自身3个方面进行影响因素的分析,并据此提出了提升新生代农民工未来认同的对策建议：改革城乡二元体制、改善社会环境,增强关爱与沟通、调整新生代农民工的心态,提升其素质。 相似文献
7.
本文通过对安徽省特色农产品开发现状的评价,针对规模小而散、后劲不足等制约因素作了的分析,由此提出了抓好龙头企业,营造经营环境,突出重点抓龙头、抓绿色、抓整合、抓开放,以及提高组织化程度等对策。 相似文献
8.
Summary Shallot and wakegi were collected in the main islands of Indonesia, and in Japan, Korea, Taiwan, Malaysia, Thailand and Bangladesh. Five isozyme resolutions, phosphoglucomutase (PGM), glutamate oxaloacetate (GOT), glutamate dehydrogenase (GDH), esterase (EST) and peroxidase (POX) were employed for demonstrating inter-and intraspecific differences. A dendrogram separated 189 collected accessions into 25 types of wakegi onion and 18 types of shallot. All accessions of Japan, Korea and Taiwan were determined to be wakegi onion, whereas those of Bangladesh, Malaysia and Thailand were shallot. Twenty-six out of 165 Indonesian accessions indicated wakegi onion distribution in Sumatra, West Java province and in Sulawesi Island. This confirmed that there is mixed-cultivation of the two Allium species with no distinction made between them. Japan and Indonesia had respectively 12 and eight unique types of wakegi onion, while Korea had only one type. West Java showed the most various type of wakegi onion, whereas East Java had many types of shallot. Shallots collected from Bangladesh were distinetly different from those of South East Asian types. 相似文献
9.
The tourism industry has long been recognised for supporting women in achieving economic empowerment and social freedom through entrepreneurial and employment opportunities. Widely recognised as a women-dominated sector, tourism is deemed to be a facilitator of women's development following the UN Sustainable Development Goals (SDGs). As the existing literature suggests, women's involvement in tourism activities supports local economic growth and development, while facilitating social transformation that enables them to create their own identities. Despite these achievements, several studies noted the persisting issues women face in participating in tourism. With the goal of contributing to existing discourses, this paper aims to analyse their experiences in community entrepreneurship by examining several community-involved tourism enterprises in the Philippines. The findings of this study reveal that women have been largely involved in tourism activities in that country, yet their experiences working in these enterprises vary. The opportunities and challenges identified in this study can serve as a springboard for further analysis of the experience of women working in the Philippine tourism industry. 相似文献
10.
安徽特色农产品开发的现状与对策 总被引：1，自引：0，他引：1
通过对安徽省特色农产品开发现状的评价 ,针对规模小而散、后劲不足等作了制约因素的分析 ,由此提出了抓好龙头企业 ,营造经营环境 ,突出重点抓龙头、抓绿色、抓整合、抓开放 ,以及提高组织化程度等对策。 相似文献
11.
易诚 《农产品加工．学刊》2007,(6):64-68
通过对湖南省衡阳市农产品加工业现状的调查,结合政府相关部门提供的资料,就衡阳市龙头企业在该市经济发展中的作用及农产品加工业现状形成的原因进行深层次分析,为政府决策提供依据。 相似文献
12.
为系统了解东平湖水环境以及富营养化问题,并更好地治理和预防,通过实地调查和查阅文献的方法着重对东平湖水环境历史变迁、水质污染现状和富营养化状态、污染物来源等热点问题的研究进展进行了回顾。总结出历史时期东平湖水环境变迁主要受黄河影响,直到20世纪60年代之后才主要受人类活动影响。随大汶河而来的大量工业和生活污水等外源污染与沉积物再悬浮以及菹草死亡降解等内源污染共同作用下,使得现在的东平湖已发展为中富-富营养化湖泊。最后基于东平湖水环境和治理现状以及南水北调东线工程计划就东平湖水环境发展做出了展望。 相似文献
13.
甘肃经济与环境协调发展度评价研究 总被引：5，自引：1，他引：4
随着经济的快速发展,环境对经济发展的阻碍作用日益明显,可持续发展越来越引起人们的关注。虽然各学科领域的学者作了大量的研究工作,但理论上环境与经济协调发展的定量评价仍处于探索研究阶段。本文在对甘肃省经济与环境现状进行分析后,通过经济与环境协调度评价模型的研究,揭示出甘肃省环境状况与经济发展之间的关系,对当地环境政策的制定和评价具有一定参考意义。 相似文献
14.
At the Chinese history cultural heritage protection level,the historic towns belong to historical culture protectorate category,which is a kind of precious historical culture resources.How to protect this traditional human settlement in the contemporary space and time's environment effectively is a challenging topic in front of us.In this paper from the existing feature and evolution tendency of Bayu historic towns under the background of present urbanization,in accordance with their problems,the technique of Combination is put forward considering feasibility and concrete ways for the continuation of traditional space structure and repair of social culture appearance.Based on them and from the aspects of economy and policy,furthermore,the guarantee strategies,which put the Combination into practice,are discussed,that will provide a reference for practical operation of historic towns combination. 相似文献
15.
Mostafa Mahmud Naser Mohammad Shahidul Hasan Swapan Reazul Ahsan Tanzim Afroz Sabrina Ahmed 《Asia Pacific viewpoint》2019,60(2):175-190
Bangladesh experiences some of the most severe impacts of climate change, with impacts already evident in the coastal regions. Recent data shows that around 32% of the coastal communities in Bangladesh are affected by climate‐induced hazards each year. In 2011, 64% among them were displaced locally and 27% were displaced to other locations in Bangladesh. It requires comprehensive and viable polices and planning to meet the challenges of managing a large number of displaced people. In this context, this paper reviews and investigates the effectiveness of current governance frameworks to address migration of affected communities. It argues that migration can be an effective way to cope with environmental shocks. Finally, it discusses policy imperatives for effective protection of people displaced by climate risks with a special reference to adopting a human rights‐based approach in law and policy making for climate‐induced migration. 相似文献
16.
目前,西安市园林绿化废弃物循环利用存在缺失与不足,不仅浪费资源也不利于城市生态环境保护。研究旨在了解西安市园林绿化废弃物再利用的现状,以期为提高园林绿化废弃物再利用提出对策。通过信息搜集、实践总结,了解到国内外绿化废弃物再利用的成熟实践经验和西安市园林绿化废弃物再利用现状。一些发达国家和中国一些一线城市园林绿化废弃物再利用率高且发展较成熟,它们有着政策、管理、经济、宣传等方面的支撑。西安市园林绿化废弃物的处理方式主要有近地填埋和转运清运2种方式,目前仅在2个试点区开展了小范围的再利用实践,资源化利用还处于摸索试验期,全市范围内还未能开展。结合西安市园林废弃物利用现状,提出从政策保障、宣传落实、职权明确、经济支持4个方面推动西安市园林绿化废弃物再利用。该研究为进一步推进西安市园林绿化废弃物再利用提出对策,以期助力西安市生态文明建设。 相似文献
17.
苋科植物以其极高的营养价值和药用价值近年来引起了人们的普遍关注,对其生物学特性、营养成分、药用作用、开发利用等方面的研究也相继开展。本文概括了苋科植物的植物学特征、种属特性及其分布特点,并阐述了苋科植物的开发利用现状及其存在的问题,进而对其前景进行展望,探索了其潜在的研究价值。 相似文献
18.
Henry Scheyvens 《Asia Pacific viewpoint》2002,43(3):329-342
This report to the Poverty, Prosperity and Progress conference examines the village–level development programmes of Shapla Neer, a Japanese NGO which has been operating in Bangladesh since independence in 1971. Shapla Neer’s experiences offer hard–won lessons for development practitioners: the need for effective targeting; the desirability of self–employment as a livelihood option for poor households; the necessity of close monitoring; the need to target women; and the need for the poor to gain a political voice. An overarching lesson is that development programmes will be most successful when their design is based on an understanding of the relationship between power and poverty. 相似文献
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20.
Catharina P. Williams 《Asia Pacific viewpoint》2008,49(3):344-353
Drawing on an analysis of in‐depth interviews with returned migrant women from East Nusa Tenggara, Indonesia, this paper considers the links between migration, religious beliefs and subjectivity. Low‐skilled migrant women, including domestic workers, have often been represented as marginalised. This paper argues that in the context of migration, women constantly move through trajectories of power using religion as a spiritual resource. Against the commonly patriarchal characteristics of their religion and community, the women employ cognitive strategies to face challenges in migration. In each stage of their transnational migration, the women's experiences reveal the multitude of ways in which they continue to invest in their beliefs through everyday practices, rituals and networking. These experiences highlight the women's strategies in accessing different forms of power. This study demonstrates the significance of focusing on these women's experiences, including their everyday religious practices and their shifting sense of self, as a way of broadening the conceptual basis of our understanding of female migration. 相似文献