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A Deep Learning-Based Teaching Design for High School Geography Units:Taking the Example of Landforms of the Humanistic Education Edition
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作者 Xiaojie Yuan Chenguang Zhang +3 位作者 Jiajia Li Jiqiang Niu Xiumei Li Xingjun Shi 《Journal of Contemporary Educational Research》 2024年第2期176-182,共7页
The traditional teaching methods of one-way cultivation of students can no longer meet the requirements of talent cultivation at this stage.The issue of how to promote students from passive acceptance to the independe... The traditional teaching methods of one-way cultivation of students can no longer meet the requirements of talent cultivation at this stage.The issue of how to promote students from passive acceptance to the independent cognitive understanding stage(i.e.deep learning)has become the focus of geography teaching.Therefore,under the guidance of deep learning theory,this paper takes the“landforms”knowledge unit of the Humanistic Education Edition as an example,improves the classroom teaching means through the unit teaching mode,reconstructs the“landforms”teaching unit,and explores the specific teaching of high school geography unit based on deep learning.This study provides a good example and guidelines for high school geography teaching and learning. 展开更多
关键词 Deep learning Unit teaching geography education Case design High school education
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英国高中地理教材栏目设置的特点及启示——以Geography B Evolving Planet为例
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作者 徐波 安龙 +3 位作者 袁圆 欧然然 谢庆玲 冯婷 《咸阳师范学院学报》 2023年第4期84-88,共5页
以英国中学地理教材Geography B Evolving Planet中的教材栏目为研究对象,结合其在教材中实际发挥的功能,将八种主要的教材栏目划分为问题思考类、技能训练类、信息提示类和考试导向类四大类。这四大类教材栏目体现出了不同的特点。问... 以英国中学地理教材Geography B Evolving Planet中的教材栏目为研究对象,结合其在教材中实际发挥的功能,将八种主要的教材栏目划分为问题思考类、技能训练类、信息提示类和考试导向类四大类。这四大类教材栏目体现出了不同的特点。问题思考类栏目指向不同教学目标,技能训练类栏目凸显实用性和应用性的学科特色,信息提示类栏目关注学生心理特点,考试导向类栏目提高应试答题技巧。受此启发,未来我国中学地理教材栏目设置应有所侧重,即教材栏目在内容设置上要注重针对性,在形式设置上要增加多样性,在外观设置上要注重醒目性。 展开更多
关键词 地理教材 geography B Evolving Planet 教材栏目
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Development Geography for exploring solutions to promote regional development 被引量:3
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作者 Xiangzheng Deng Yifei Wang Malin Song 《Geography and Sustainability》 CSCD 2023年第1期49-57,共9页
Development Geography is a branch of geography which studies the socioeconomic development of different countries and regions worldwide.Its related research provides informative ideas for promoting regionally co-ordin... Development Geography is a branch of geography which studies the socioeconomic development of different countries and regions worldwide.Its related research provides informative ideas for promoting regionally co-ordinated development.This study introduces the basic connotation and theory of Development Geography re-search,and clarifies its primary indicators and core approaches to provide solutions for regional development.Finally,the application in regional development research under globalization is proposed.It is considered that the systematically integrated geography paradigm highlights the advantages of Development Geography in re-gional development research.As a result of its“differentiation characteristics-diffusion state-convergence mode”,an important theoretical basis and methodological paradigm are provided to explore the features of regional de-velopment.Since the development gaps among regions exist long throughout the world,Development Geography research ought to focus on new characteristics and challenges of regional development,to provide a theoretical basis for synergy management of sustainable development goals and international cooperation.This contributes to high-quality regional development. 展开更多
关键词 Development geography Regional development Geophysical factors Quality of life Sustainable development
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Xinjiang Institute of Ecology and Geography established three new research departments
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《Journal of Arid Land》 SCIE 2011年第4期302-302,共1页
Xinjiang Institute of Ecology and Geography(XJEG),Chinese Academy of Science(CAS),established three new research departments in 2011.They are Department of Geology Mineralization and Mineral Resources,Department o... Xinjiang Institute of Ecology and Geography(XJEG),Chinese Academy of Science(CAS),established three new research departments in 2011.They are Department of Geology Mineralization and Mineral Resources,Department of Environmental Pollution and Process Control, and Department of Central Asian Cooperation and Coordinated Development, respectively. Now, there are a total of eight research departments in XJEG, CAS. 展开更多
关键词 Xinjiang Institute of Ecology and geography established three new research departments CAS
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Division of Geography SciencesDepartment of Earth SciencesNational Natural Science Foundation of ChinaThe approval projects on field of environmental sciences (1991)
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《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1992年第1期123-124,共2页
关键词 Division of geography SciencesDepartment of Earth SciencesNational Natural Science Foundation of ChinaThe approval projects on field of environmental sciences
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Division of Geography Sciences Department of Earth Sciences National Natural Science Foundation of China The approval projects on field of environmental sciences(1992)
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《Journal of Environmental Sciences》 SCIE EI CAS CSCD 1993年第2期244-245,共2页
关键词 Division of geography Sciences Department of Earth Sciences National Natural Science Foundation of China The approval projects on field of environmental sciences
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Broader applicability of the metacoupling framework than Tobler’s first law of geography for global sustainability:A systematic review
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作者 Nicholas Manning Yingjie Li Jianguo Liu 《Geography and Sustainability》 CSCD 2023年第1期6-18,共13页
Complex sustainability issues in the Anthropocene,with rapid globalization and global environmental changes,are increasingly interlinked between not only nearby systems but also distant systems.Tobler’s first law of ... Complex sustainability issues in the Anthropocene,with rapid globalization and global environmental changes,are increasingly interlinked between not only nearby systems but also distant systems.Tobler’s first law of geog-raphy(TFL)states“near things are more related than distant things”.Evidence suggests that TFL is not infallible for sustainability issues.Recently,the integrated framework of metacoupling(MCF;human-nature interactions within as well as between adjacent and distant systems)has been applied to analyze the interactions between nearby and distant coupled human and natural systems simultaneously.However,previous work has been scat-tered and fragmented.It is crucial to understand the extent to which TFL and MCF apply across pressing issues in sustainability.Therefore,we reviewed and synthesized sustainability literature that used TFL and MCF across seven major topics:land change,species migration,tourism,trade,agricultural development,conservation,and governance.Results indicate MCF had a much broader applicability than TFL for these topics.The literature using MCF generally did not or likely did not obey TFL,especially in trade,governance,and agricultural de-velopment.In the TFL literature,most topics obeyed TFL,except for species migration and trade.The findings suggest the need to rethink and further test TFL’s relevance to sustainability issues,and highlight the potential of MCF to address complex interactions between both adjacent and distant systems across the world for global sustainability. 展开更多
关键词 Telecoupling SUSTAINABILITY Tobler’s First Law of geography Systematic review Metacoupling
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Translocality:A Re-recognition of Locality in Western Geography
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作者 Xiuchuan LIU Fei SU 《Asian Agricultural Research》 2023年第3期11-16,25,共7页
Translocality,as a re-recognition of locality in western Geography,has gradually become an important theoretical framework for understanding the increasingly interconnected global world.By focusing on sorting out the ... Translocality,as a re-recognition of locality in western Geography,has gradually become an important theoretical framework for understanding the increasingly interconnected global world.By focusing on sorting out the context and main topics of current western geography on translocality research,it reached the following conclusions.(i)From the perspective of geography,translocality research can be roughly divided into initial development stage,stable development stage and high-speed development stage.(ii)Existing studies on migration,urbanization,and social resilience form the knowledge base for translocality research from the perspective of geography.Migration,mobility,and politics are hot topics of translocality research.(iii)Current issues mainly focus on the characteristics of translocal behavior,the impact of translocal behavior,translocal circular flow and gender research in translocal behavior.Based on this,it proposed the important trends that translocality research in China needs to pay attention. 展开更多
关键词 geography Translocality Population migration MOBILITY
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Ideological and Political Elements Exploration in the Course of “Physical Geography”
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作者 Huan Wang 《Open Journal of Applied Sciences》 CAS 2023年第3期327-334,共8页
“Physical Geography” is a course to study human beings and the environment, revealing the basic characteristics, formation mechanism and development laws of various physical geography elements, with rich ideological... “Physical Geography” is a course to study human beings and the environment, revealing the basic characteristics, formation mechanism and development laws of various physical geography elements, with rich ideological and political elements and high moral value, and is an important course to cultivate geographical professional interests and enhance national pride. By fully sorting out the ideological and political resources contained in the curriculum, deeply excavating the ideological and political elements, and reasonably designing the integration, this paper analyzed the dimensions of ideological and political education in the physical geography curriculum. Taking professional knowledge as the main line, the educational elements in five aspects were refined, namely, philosophical thinking, power of a big country, patriotism, strict science, and aesthetic education. This paper established the ideological and political element system of the curriculum, and achieved the moral education of the professional curriculum moisturizing and silent effect. 展开更多
关键词 Physical geography Curriculum Ideological and Political Education Reform in Education Establish Virtue and Cultivate People
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近10年国际社会与文化地理研究的发展及启示——基于《Social and Cultural Geography》论文的统计分析 被引量:18
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作者 朱竑 陈宁宁 《人文地理》 CSSCI 北大核心 2011年第5期1-8,共8页
世纪交替之际"批判"社会地理学和新文化地理学不断得到发展和壮大。在这样的背景下,2000年《Social and Cultural Geography》杂志应运而生。经过10多年的发展,目前该杂志已成为展示国际社会和文化地理学术研究成果的重要窗... 世纪交替之际"批判"社会地理学和新文化地理学不断得到发展和壮大。在这样的背景下,2000年《Social and Cultural Geography》杂志应运而生。经过10多年的发展,目前该杂志已成为展示国际社会和文化地理学术研究成果的重要窗口之一。本文对《Social and Cultural Geography》2000—2010年刊发的516篇论文进行统计分析,从载文量变化、研究案例地分布和研究领域的关注度等方面分析其特征,在此基础上,对期刊设立的22个研究议题进行了内容分析,以期为国内社会和文化地理学者把握国际最新研究趋势,提升自身研究水平、拓展研究新领域,以及加强与国际研究的融合和促进自身发展等提供借鉴。 展开更多
关键词 《Social and CULTURAL geography 新文化地理 批判社会地理学 学科启示和国际融合
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西方文化地理研究的研究取向、资料搜集与展示方式——基于《Social& Cultural Geography》刊载论文的内容分析 被引量:6
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作者 朱竑 刘博 钱丽芸 《人文地理》 CSSCI 北大核心 2011年第2期1-6,共6页
采用内容分析的方法,对2008、2009年《Social & Cultural Geography》所刊载论文的资料搜集方法、分析方法、佐证材料类型进行了统计。研究发现:西方文化地理研究更倾向于定性研究的取向,强调研究者本身挖掘社会素材的能力和诠释材... 采用内容分析的方法,对2008、2009年《Social & Cultural Geography》所刊载论文的资料搜集方法、分析方法、佐证材料类型进行了统计。研究发现:西方文化地理研究更倾向于定性研究的取向,强调研究者本身挖掘社会素材的能力和诠释材料的智慧和客观性。在资料搜集与展示方面,西方学者更加倾向于进行实地研究,多采用参与式观察、访谈等多种方式获取大量的资料,善用文字资料、照片等多种证据来证明研究的信度和效度。本研究希望通过西方经典文化地理文献的梳理,引起国内研究人员对定性研究取向的重视,以及对文本资料、照片等证据作为学术研究成果表达方式的重视。 展开更多
关键词 内容分析 文化地理 研究方法 SOCIAL &Cultural geography
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Soil resilience assessment using soil profile descriptions and Analytic Hierarchy Process in Mediterranean mountains considering diverse fire occurrences
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作者 Jesús RODRIGO-COMINO 《Journal of Mountain Science》 SCIE CSCD 2024年第8期2517-2532,共16页
Wildfires are complex natural phenomena that exert significant impacts on landscapes,societies,and economies.Understanding the concept of resilience is crucial in mitigating its possible negative impacts,as it involve... Wildfires are complex natural phenomena that exert significant impacts on landscapes,societies,and economies.Understanding the concept of resilience is crucial in mitigating its possible negative impacts,as it involves preparing for,responding to,and recovering from wildfires.This research aims to demonstrate the utility of in situ soil profile description in assessing land use resilience using an Analytic Hierarchy Process(AHP)through an expert panel survey.The study examines a catchment located in the Balearic Islands,considering two fire occurrences(once and twice),comparing abandoned agricultural terraces and natural hillslopes.The results demonstrated that the priority ranking of variables to assess soil profile resilience against wildfires,determined by a panel of 10 experts,identified horizon depth(25.1%),slope inclination(21.5%),and hydrological connectivity(16.6%)as the most crucial factors.Other variables,such as number and size of roots,structure of pedal soil material,size class structure,and rock fragments,also contributed to resilience but to a lesser extent,with scores ranging from 5.7%to 9.6%.Analyzing the priorities established by the experts using AHP,the results showed that the least resilient soil horizon was H1 of the control hillslope,especially under high and low connectivity processes,which aligned with the loss of superficial soil horizons after one and two wildfires.Hillslopes showed greater changes in resilience after occurring wildfires compared to terraces,with the most significant alterations occurring after the second wildfire event.This study addresses a significant knowledge gap in the field by highlighting the interconnectedness of wildfires,resilience,and land use,providing insights into land management strategies for wildfire-prone regions. 展开更多
关键词 Soil profiles Soil geography WILDFIRES AHP Land management Expert panel survey
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Analysis of spatial distribution characteristics and driving factors of ethnicminority villages in China using geospatial technology and statistical models
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作者 SHAO Dandan ZOH Kyungjin 《Journal of Mountain Science》 SCIE CSCD 2024年第8期2770-2789,共20页
This study aims to reveal the spatial structural characteristics of 1,652 Ethnic-Minority Villages(EMV)in China and to analyze the mechanisms driving their spatial heterogeneity.EMV are a special type of settlement sp... This study aims to reveal the spatial structural characteristics of 1,652 Ethnic-Minority Villages(EMV)in China and to analyze the mechanisms driving their spatial heterogeneity.EMV are a special type of settlement space that preserve a large number of historical traces of the ethnic culture of ancient China.They are important carriers of China’s excellent traditional culture and are key to the implementation of rural revitalization strategies.In this study,1652 EMV in China were selected as the research subjects.The Nearest Neighbor Index,kernel density,and spatial autocorrelation index were employed to reveal the spatial structural characteristics of minority villages.Neural network models,spatial lag models,and geographical detectors were used to analyze the formation mechanism of spatial heterogeneity in EMV.The results indicate that:(1)EMV exhibit significant spatial differentiation characterized by“single-core with multiple surrounding sub-centers,”“polarization between east and west,”“decreasing quantity from southwest to east coast to northeast to northwest,”and“large dispersion with small agglomeration.”(2)EMV are mainly distributed in areas rich in intangible cultural heritage,with high vegetation coverage and low altitude,far from central cities,and having limited arable land and an underdeveloped economy and transportation,particularly in shaded or riverbank areas.(3)Distance from the nearest river(X3),distance from central cities(X8),national intangible cultural heritage(X9),and NDVI(X10)were the main driving factors affecting the spatial distribution of EMV,whereas elevation(X1)and GDP(X5)had the weakest influence.As EMV are a relatively unique territorial spatial unit,the identification of their spatial heterogeneity characteristics not only deepens the research content of settlement geography,but also involves the assessment,protection,and development of Minority Villages,which is of great significance for the inheritance and utilization of excellent ethnic cultures in the era. 展开更多
关键词 Ethnic-Minority Villages Spatial structure Settlement geography Neural network model Spatial econometric model GeoDetector
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Spatio-Temporal Trend and Geographic Disparity of Infertility Prevalence in Burkina Faso, 2011 to 2020
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作者 Oumarou Nabi René Tokira Poubouré Yabré +5 位作者 Pratibha Shrestha Aoua Sangaré Jérémie Sawadogo Miézan Brigitte Aka Smaila Ouédraogo Min Lian 《Open Journal of Obstetrics and Gynecology》 2024年第8期1288-1302,共15页
Background: Infertility affected 10% to 25% of couples globally, and about half of the infertility cases were reported in sub-Saharan Africa. Infertility poses significant social, cultural, and health challenges, part... Background: Infertility affected 10% to 25% of couples globally, and about half of the infertility cases were reported in sub-Saharan Africa. Infertility poses significant social, cultural, and health challenges, particularly for women who often face stigmatization. However, comprehensive and nationally representative data, including prevalence, temporal trends, and risk factors, are lacking, prompting a study in Burkina Faso to address the need for informed policies and programs in infertility care and management. Objectives: This study aims to better understand the spatiotemporal trend of infertility prevalence in Burkina Faso. Methodology: This is a retrospective population-based study of women infertility from healthcare facilities in Burkina Faso, during January 2011 to December 2020. We calculated the prevalence rates of infertility and two disparity measures, and examined the spatiotemporal trend of infertility. Results: Over the 10-year period (2011 to 2020), 143,421 infertility cases were recorded in Burkina Faso healthcare facilities, resulting of a mean prevalence rate of 3.61‰ among childbearing age women and 17.87‰ among women who consulted healthcare facilities for reproductive issues (except contraception). The findings revealed a significant increase of infertility, with the prevalence rate varied from 2.75‰ in 2011 to 4.62‰ in 2020 among childbearing age women and from 13.38‰ in 2011 to 26.28‰ in 2020 among women who consulted healthcare facilities for reproductive issues, corresponding to an estimate annual percentage change of 8.31% and 9.80% respectively. There were significant temporal and geographic variations in the prevalence of infertility. While relative geographic disparity decreased, absolute geographic disparity showed an increasing trend over time. Conclusion: The study highlights an increasing trend of infertility prevalence and significant geographic variation in Burkina Faso, underscoring the urgent necessity for etiologic research on risk factors, psychosocial implications, and economic consequences to inform effective interventions and mitigate the socioeconomic impact of infertility. 展开更多
关键词 INFERTILITY PREVALENCE Temporal Trend geography DISPARITY
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Hepatocellular carcinoma national burden across different geographical regions in the United States between 2001 and 2020
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作者 Yazan Abboud Raj Malhotra +9 位作者 Muhammad Hassaan Arif Maan Anna Mathew Ibrahim Abboud Chun-Wei Pan Saqr Alsakarneh Fouad Jaber Islam Mohamed David Kim Nikolaos T Pyrsopoulos 《World Journal of Methodology》 2024年第4期110-120,共11页
BACKGROUND While prior data showed an increasing incidence of hepatocellular carcinoma(HCC)in the United States,there are limited comprehensive and comparative data on the geographical variations of HCC trends in diff... BACKGROUND While prior data showed an increasing incidence of hepatocellular carcinoma(HCC)in the United States,there are limited comprehensive and comparative data on the geographical variations of HCC trends in different demographicspecific populations.AIM To evaluate sex and age-specific incidence rates and time trends in different geographical regions in the United States.METHODS Age-adjusted HCC incidence rates were collected from the United States Cancer Statistics(USCS)database which covers approximately 98%of the population in the United States.HCC rates were stratified by sex,age,and geographical region.annual percentage change(APC)and average APC(AAPC)were estimated using Joinpoint Regression.A pairwise comparison was conducted between sex-specific trends.RESULTS There were 467344 patients diagnosed with HCC in the United States in the USCS database between 2001 and 2020.The rates and trends varied by geographical region.When looking at the West region(115336 patients),incidence rates of HCC were overall increasing and also increasing in older adults.However,when evaluating younger adults,HCC incidence rates decreased in men but not in women with a sex-specific absolute AAPC-difference of 2.15(P=0.005).When evaluating the Midwest region(84612 patients),similar results were seen.While incidence rates were increasing in the overall population and in older adults as well,they were decreasing in younger men but not in women with a sex-specific absolute AAPC-difference of 1.61(P<0.001).For the Northeast region(87259 patients),the analysis showed similar results with decreasing HCC incidence rates in younger men but not counterpart women(Sex-specific AAPC-difference=3.26,P<0.001).Lastly,when evaluating the south(180137 patients),the results were also decreasing in younger men but not in women(Sex-specific AAPC-difference=2.55,P<0.001).CONCLUSION Nationwide analysis covering around 98%of the United States population shows an increasing incidence of HCC across all geographical regions,most notably in the South.While younger men experienced decreasing HCC incidence,younger women had a stable trend and this was noted across all regions as well.Our study offers insight into the epidemiology of HCC in different demographic groups across various United States geographical regions.While the reasons contributing to our findings are unclear,they can be related to sex and regional disparities in healthcare access and utilization.Future research is warranted to characterize the temporal change in HCC risk factors across different United States regions. 展开更多
关键词 Hepatocellular carcinoma INCIDENCE EPIDEMIOLOGY Health disparity geography
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Impact of payment source, referral site, and place of residence on outcomes after allogeneic transplantation in Mexico
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作者 Andrés Gómez-De León Yesica A López-Mora +13 位作者 Valeria García-Zárate Ana Varela-Constantino Sergio U Villegas-De Leon Xitlaly J González-Leal Raúl del Toro-Mijares Anna C Rodríguez-Zúñiga Juan F Barrios-Ruiz Victor Mingura-Ledezma Perla R Colunga-Pedraza Olga G Cantú-Rodríguez César H Gutiérrez-Aguirre Luz Tarín-Arzaga Elías E González-López David Gómez-Almaguer 《World Journal of Transplantation》 2024年第2期76-87,共12页
BACKGROUND The impact of social determinants of health in allogeneic transplant recipients in low-and middle-income countries is poorly described.This observational study analyzes the impact of place of residence,refe... BACKGROUND The impact of social determinants of health in allogeneic transplant recipients in low-and middle-income countries is poorly described.This observational study analyzes the impact of place of residence,referring institution,and transplant cost coverage(out-of-pocket vs government-funded vs private insurance)on outcomes after allogeneic hematopoietic stem cell transplantation(alloHSCT)in two of Mexico's largest public and private institutions.AIM To evaluate the impact of social determinants of health and their relationship with outcomes among allogeneic transplant recipients in Mexico.METHODS In this retrospective cohort study,we included adolescents and adults≥16 years who received a matched sibling or haploidentical transplant from 2015-2022.Participants were selected without regard to their diagnosis and were sourced from both a private clinic and a public University Hospital in Mexico.Three payment groups were compared:Out-of-pocket(OOP),private insurance,and a federal Universal healthcare program“Seguro Popular”.Outcomes were compared between referred and institution-diagnosed patients,and between residents of Nuevo Leon and out-of-state.Primary outcomes included overall survival(OS),categorized by residence,referral,and payment source.Secondary outcomes encompassed early mortality,event-free-survival,graft-versus-host-relapse-free survival,and non-relapse-mortality(NRM).Statistical analyses employed appropriate tests,Kaplan-Meier method,and Cox proportional hazard regression modeling.Statistical software included SPSS and R with tidycmprsk library.RESULTS Our primary outcome was overall survival.We included 287 patients,n=164 who lived out of state(57.1%),and n=129 referred from another institution(44.9%).The most frequent payment source was OOP(n=139,48.4%),followed by private insurance(n=75,26.1%)and universal coverage(n=73,25.4%).No differences in OS,event-free-survival,NRM,or graft-versus-host-relapse-free survival were observed for patients diagnosed locally vs in another institution,nor patients who lived in-state vs out-of-state.Patients who covered transplant costs through private insurance had the best outcomes with improved OS(median not reached)and 2-year cumulative incidence of NRM of 14%than patients who covered costs OOP(Median OS and 2-year NRM of 32%)or through a universal healthcare program active during the study period(OS and 2-year NRM of 19%)(P=0.024 and P=0.002,respectively).In a multivariate analysis,payment source and disease risk index were the only factors associated with overall survival.CONCLUSION In this Latin-American multicenter study,the site of residence or referral for alloHSCT did not impact outcomes.However,access to healthcare coverage for alloHSCT was associated with improved OS and reduced NRM. 展开更多
关键词 Hematopoietic cell transplant Social determinants of health geography HAPLOIDENTICAL OUT-OF-POCKET Financial toxicity Survival Health services and outcomes Hematopoietic malignancy Aplastic anemia
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Geographies of Chemical Warfare in Vietnam: The Merry Band of Retirees
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作者 Bryan R. Higgins 《Open Journal of Soil Science》 2024年第9期530-536,共7页
This review explores the recent development of research on rainbow herbicides as chemical weapons and the geographies of chemical warfare in what is now the Socialist Republic of Vietnam. While the use and impacts of ... This review explores the recent development of research on rainbow herbicides as chemical weapons and the geographies of chemical warfare in what is now the Socialist Republic of Vietnam. While the use and impacts of Agent Orange have previously been well documented, the production and extensive application of five other rainbow agents by the United States military has only recently been investigated in detail. What is exceptional about this research of chemical warfare landscapes is that the 23 refereed journal publications in this review were designed, implemented, and published in a unique collective research project by Ken Olson and a Merry Band of Military Retirees. Their groundbreaking research portfolio includes many geographical dimensions and the political ecology of chemical warfare. This includes the extensive exposure of civilians in Vietnam to these chemical agents, exposure of US military personnel in Southeast Asia and Panama, exposure of civilians near the private industrial sites that produced these rainbow agents in North America and the hazardous soil contamination that perseveres at these sites in Vietnam and the US. Given this impressive research depth and global scope, this review explores the unique way this research portfolio was developed by a Merry Band of Retirees through an interview with its leader, Ken Olson. It examines the goals and ethical orientation of these military veterans, the political ecology involved, the creative strategies they utilized to produce this innovative research, and how they changed the way Veterans exposed to chemical warfare agents are treated by the US government. 展开更多
关键词 Chemical Warfare Rainbow Agents geography Merry Band of Retirees Political Ecology
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How antibiotic resistances could change Helicobacter pylori treatment:A matter of geography? 被引量:23
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作者 Enzo Ierardi Floriana Giorgio +2 位作者 Giuseppe Losurdo Alfredo Di Leo Mariabeatrice Principi 《World Journal of Gastroenterology》 SCIE CAS 2013年第45期8168-8180,共13页
Therapeutic management of Helicobacter pylori(H.pylori)remains an unsolved issue.Indeed,no therapeutic regimen is able to cure the infection in all treated patients,and in many the infection persists despite the admin... Therapeutic management of Helicobacter pylori(H.pylori)remains an unsolved issue.Indeed,no therapeutic regimen is able to cure the infection in all treated patients,and in many the infection persists despite the administration of several consecutive standard therapies.Although antibiotic resistance reports describe alarming results,the outcome of therapeutic regimens does not seem to parallel this scenario in most cases,since a successful performance is often reached in more than 80%of cases.However,the phenomenon of increasing antibiotic resistance is being closely studied,and the results show controversial aspects even in the same geographic area.For the continents of Europe,America,Asia,Africa,and Oceania,minimal and maximal values of resistance to the main antibiotics(clarithromycin,amoxicillin,metronidazole,and levofloxacin)feature wide ranges in different countries.The real enigma is therefore linked to the several different therapeutic regimens,which show results that often do not parallel the in vitro findings even in the same areas.A first aspect to be emphasized is that some regimens are limited by their use in very small geographic districts.Moreover,not all therapeutic trials have considered bacterial and host factors affecting the therapeutic outcome.The additional use of probiotics may help to reduce adverse events,but their therapeutic impact is doubtful.In conclusion,the"ideal therapy",paradoxically,appears to be a"utopia",despite the unprecedented volume of studies in the field and the real breakthrough in medical practice made by the discovery and treatment of H.pylori.The ample discrepancies observed in the different areas do not encourage the development of therapeutic guidelines that could be valid worldwide.On these bases,one of the main challenges for the future might be identifying a successful solution to overcome antibiotic resistances.In this context,geography must be considered a relevant matter. 展开更多
关键词 HELICOBACTER PYLORI Antibiotic resistance geography THERAPEUTIC REGIMENS THERAPEUTIC outcome
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Advances in applied studies of fractal theory in geography in China 被引量:5
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作者 秦耀辰 刘凯 《Journal of Geographical Sciences》 SCIE CSCD 2004年第z1期62-68,共7页
The fractal theory put forward by American mathematician B B Mandelbrot (1967) supplies an effective approach to solve complex problems. The complex problems in geography have become the main positive study field of f... The fractal theory put forward by American mathematician B B Mandelbrot (1967) supplies an effective approach to solve complex problems. The complex problems in geography have become the main positive study field of fractal theory. Based on the works of China's geographers and the summarization of contents of fractal theory, the authors comment on the present situation of its applications to almost every branch of geography and discuss the related problems and the prospects of fractal study in geography. 展开更多
关键词 fractal theory fractal dimension geography ADVANCE China
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Analysis on Genetic Similarity of Japonica Rice Variety from Different Origins of Geography in the World 被引量:5
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作者 SHU Ai-ping Kim Jong hwan +5 位作者 ZHANG San-yuan CAO Gui-lan NAN Zhong-hao Lee Kyu seong LU Qin HAN Long-zhi 《Agricultural Sciences in China》 CAS CSCD 2009年第5期513-520,共8页
The genetic similarity and genetic difference among improved japonica rice varieties from different countries (or regions and organizations) were detected. The aim is to provide genetic basis to the breeding of japo... The genetic similarity and genetic difference among improved japonica rice varieties from different countries (or regions and organizations) were detected. The aim is to provide genetic basis to the breeding of japonica rice varieties. The genetic similarity and cluster of 313 improved japonica varieties from 20 countries (or regions and organizations) were analyzed using the SSR marker. With 34 SSR primers which were polymorphic and uniformly distributed in rice genome, totally 198 alleles were detected among these improved varieties with the average number of alleles per pair of primers of 5.8235. RM320, RM531, RM1, RM21, and RM336 located more alleles, which were 16, 13, 12, 10, and 10 respectively. RM320, RM336, RM286, RM531, and RM21 showed higher genetic diversity indexes, which were 2.3668, 2.0041, 1.9684, 1.9508, and 1.7203, respectively. The genetic similarity for improved japonica varieties among different countries (or regions and organizations) were ranged from 0.279 to 0.918, and the mean value was 0.653. The rice varieties from countries whose latitude and geography position were all nearer were clustered together with higher genetic similarity indexes. The rice varieties from countries who had more different latitude and far geography position were clustered separately with lower genetic similarity indexes. The results indicated the genetic similarity indexes among improved japonica varieties had a close relationship with the geographical position, especially with the latitude. 展开更多
关键词 japonica rice genetic similarity geography origin LATITUDE SSR marker
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