检索结果-南通市图书馆

Local perceptions of climate change and adaptation needs in the Ifugao Rice Terraces (Northern philippines)

山地科学学报（英文） 2017年第8期14卷 1455-1472页

作者： Mario A.SORIANO jr. Johanna DIWA Srikantha HERATH Institute for the Advanced Study of Sustainability United Nations University School of Forestry and Environmental Studies Yale University

The Ifugao Rice Terraces in the philippines is recognized worldwide as a sustainable landscape where humans live in harmony with nature. The success of the Ifugao Rice Terraces largely depends on the attunement of local farmers to their environment and their ability to adapt to perceived changes, as manifested in their complex body of traditional ecological and climatic knowledge. This paper examines the local perceptions on climate change and other challenges to sustainability through focus group discussions with farmers and traditional knowledge holders. Our main findings can be summarized as follows:(i) Ifugao farmers were able to observe climatic changes in recent years, and these changes were intimately linked with broader environmental and socio-cultural changes in the Ifugao social-ecological system;(ii) The climatic changes qualitatively observed by the farmers were in agreement with trends in datasets commonly used in scientific assessments, although this agreement depends on the spatial and temporal resolution of the dataset, and the type of statistical analysis performed, and;(iii) The Ifugaos stressed the importance of traditional knowledge and culture in climate change adaptation, and preferred measures which could increase internal adaptive capacity while addressingbroader sources of community vulnerability. Our results support calls to recognize Indigenous and Western science as equally valid ways of knowing. Discussions with the farmers revealed that in the Ifugao context, climate change may be better framed in the context of multiple stressors on rural livelihoods, with adaptation integrated into broader development objectives. Our findings also emphasize the need for greater engagement of indigenous Ifugao people in planning processes in order to identify adaptation strategies that are culturally appropriate, equitable, and effective in responding to local needs.

关键词： Ifugao Rice Terraces Climate Change Traditional Knowledge Indigenous Adaptation Social-Ecological System Sustainability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The　Enhancement　of　Fluorescence　of　The　Squaraine　Dye　LB　Films　by　Overcoating　of　Glycolipids

引用

Chinese Chemical Letters 1996年第10期7卷 935-938页

作者： Li, jr Fan, CY Li, BF Jiang, L ACAD SINICA INST PHOTOG CHEMBEIJING 100101PEOPLES R CHINA

The influence of overcoating layers of dialkylglycerylether-β-glucosides(A)1,2O-dialkylglycerylethers(B) and arachidic acid (C20) on the fluorescence of the squaraine dye(SQ) and C20 mixed film were investigated by fluorescence and time-resolved fluorescence measurements. An apparent increase in fluorescence intensity for three layer mixed film of SQ and C20 were obtained by overcoating A in comparison with the small change fluorescence intensity for SQ dye mixed film by overcoating B or C20.

关键词： SQUARYLIUM DYE

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Morphological and Molecular Characterization of Novel Salt-Tolerant Rice Germplasms from the philippines and Bangladesh

引用

Rice science 2019年第3期26卷 178-188,I0003,I0004,I0005页

作者： Wilson F.AALA jr Glenn B.GREGORIO University of the philippines Los Banos College

To screen for new sources of salinity tolerance, 688 traditional rice varieties from the philippines and Bangladesh were obtained, and their tolerance to hypersaline conditions at the seedling stage was examined. A total of 29 philippine lines and 15 Bangladeshi lines were scored as *** assessment(plant height, biomass and Na-K ratio) revealed that among the 44 salt-tolerant accessions, Casibon, Kalagnon and Ikogan had significantly higher relative shoot length difference, relative shoot growth reduction and shoot Na-K ratio than the tolerant check ***, AC and Akundo exhibited significantly higher Na-K ratios than the other genotypes. The genetic diversity of the 44 genotypes was assessed using 34 simple sequence repeat markers. A total of 133 alleles were detected across all loci. Cluster analysis showed that AC, Akundo and Kuplod were clustered along with FL478, indicating a strong genetic relatedness between these genotypes. IR29(susceptible check) was singly separated. The haplotype analysis revealed that none of the 44 genotypes had a similar allele combination as FL478. These accessions are of interest since each genotype might be different from the classical salinity-tolerant pokkali.

关键词： rice simple sequence repeat Na-K ratio salinity tolerance traditional landrace

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Real-Time Mesoscale Forecast Support During the CLAMS Field Campaign

引用

Advances in Atmospheric Sciences 2007年第4期24卷 599-605页

作者：王东海 p. MINNIS T. p. CHARLOCK D. K. ZHOU F. G. ROSE W. L. SMITH W. L. SMITH jr L. NGUYEN State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Beijing 100081 Center for Atmospheric Sciences Hampton University Hampton Virginia Langley Research Center National Aeronautics and Space Administration Hampton Virginia Analytical Services ＆ Materials Inc. Hampton Virginia

This paper reports the use of a specialized, mesoscale, numerical weather prediction （NWp） system and a satellite imaging and prediction system that were set up to support the CLAMS （Chesapeake Lighthouse and Aircraft Measurements for Satellites） field campaign during the summer of 2001. The primary objective of CLAMS was to validate satellite-based retrievals of aerosol properties and vertical profiles of the radiative flux, temperature and water vapor. Six research aircraft were deployed to make detailed coincident measurements of the atmosphere and ocean surface with the research satellites that orbited overhead. The mesoscale weather modeling system runs in real-time to provide high spatial and temporal resolution for forecasts that are delivered via the World Wide Web along with a variety of satellite imagery and satellite location predictions. This system is a multi-purpose modeling system capable of both data analysis/assimilation and multi-scale NWp ranging from cloud-scale to larger than regional scale. This is a three-dimensional, non-hydrostatic compressible model in a terrain-following coordinate. The model employs advanced numerical techniques and contains detailed interactive physical processes. The utility of the forecasting system is illustrated throughout the discussion on the impact of the surface-wind forecast on BRDF （Bidirectional Reflectance Distribution Function） and the description of the cloud/moisture forecast versus the aircraft measurement.

关键词： CLAMS field campaign mesoscale numerical weather prediction forecast support

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Changing structure of China's meat imports

引用

Journal of Integrative Agriculture 2015年第6期14卷 1081-1091页

作者： CHENG Ya-hao Zhifeng Gao James Seale jr. Department of Economics Nankai University Food and Resource Economics Department University of Florida

This paper discusses the determinants of meat imports of China. Results indicate that import demand is mostly determined by import price and real GDp. Imported price has a negative effect and real GDp has a positive influence on import quantity. Tariff does not have a significant effect. As GDp and consumption capacity increases, China has a large potential demand for meat imports. Some countries may gain if China＇s economy continues expanding, while others, like the United States, are the most sensitive to the trade policy of China.

关键词： imports Zealand expanding Australia income prices capita Fresh mostly accounting

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Feature Representations Using the Reflected Rectified Linear Unit(RReLU) Activation

引用

Big Data Mining and Analytics 2020年第2期3卷 102-120页

作者： Chaity Banerjee Tathagata Mukherjee Eduardo pasiliao jr. Department of Idustrial&Systems Engineering University of Central FloridaFloridaOrlandoFL 32816-2368USA Department of Computer Science University of Alabama in HuntsvilleHuntsvilleHuntsvilleAL 35806USA Air Force Research Labs United States Air ForceEglin Air Force BaseShalimarFL 32579USA

Deep Neural Networks(DNNs)have become the tool of choice for machine learning practitioners *** important aspect of designing a neural network is the choice of the activation function to be used at the neurons of the different *** this work,we introduce a four-output activation function called the Reflected Rectified Linear Unit(RRe LU)activation which considers both a feature and its negation during *** activation function is"sparse",in that only two of the four possible outputs are active at a given *** test our activation function on the standard MNIST and CIFAR-10 datasets,which are classification problems,as well as on a novel Computational Fluid Dynamics(CFD)dataset which is posed as a regression *** the baseline network for the MNIST dataset,having two hidden layers,our activation function improves the validation accuracy from 0.09 to 0.97 compared to the well-known Re LU *** the CIFAR-10 dataset,we use a deep baseline network that achieves 0.78 validation accuracy with 20 epochs but overfits the *** the RRe LU activation,we can achieve the same accuracy without overfitting the *** the CFD dataset,we show that the RRe LU activation can reduce the number of epochs from 100(using Re LU)to 10 while obtaining the same levels of performance.

关键词： deep learning feature space approximations multi-output activations Rectified Linear Unit(ReLU)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A new species of smooth skink (Squamata： Scincidae： Scincella) from Cambodia

引用

Zoological Research 2018年第3期39卷 220-240页

作者： Thy Neang Somaly Chan Nikolay A. poyarkov, jr. Wild Earth Allies Sk. Phnom Penh Thmei Kh. Sen Sok Phnom Penh Cambodia Ministry of Environment Sk. Tonle Bassac Kh. Chamkarmorn Phnom Penh Cambodia Department of Vertebrate Zoology Biological Faculty Lomonosov Moscow State University Moscow 119234 Russia Joint Russian-Vietnamese Tropical Research and Technological Centre Nghia Do Cau Giay Hanoi Vietnam

Based on morphological and genetic evidence we evaluated the taxonomic status of a newly discovered forest-dwelling population of skink （genus Scincella） from the Keo Selma Wildlife Sanctuary, Mondulkiri province, Cambodia. From phylogenetic analysis of a 668-bp fragment of the mtDNA COl and diagnostic morphological characters we allocate the newly discovered population to the Scincella reevesii-S. rufocaudata species complex and describe it as Scincella nigrofasciata sp. nov. The new skink species can be distinguished from all other Southeast Asian congeners by the following combination of morphological characters： snout-vent length （SVL） 40.0-52.6 mm; relative tail length （TaL/SVL ratio） 1.25-1.94; prefrontals in broad contact; infralabials 6; primary temporals 2; relative forelimb length （FIL/SVL ratio） 0.20-0.22; relative hindlimb length （HIL/SVL ratio） 0.30-0.33; relative forearm length （FoL/SVL ratio） 0.14-0.16; adpressed forelimbs and hind limbs either overlapping （0.4-2.2 mm） or separated （1.9-2.3 mm）; midbody scale rows 32-33, paravertebral scales 69-74, vertebral scales 65-69; dorsal scales between dorsolateral stripes 8; comparatively slender fingers and toes, subdigital lamellae under fourth toe 15-17; dark discontinuous regular dorsal stripes 5-7; distinct black dorsolateral stripes, narrowing to lateral sides and extending to 52%-86% of total tail length. We provide additional information on the holotype of Scincella rufocaudata （Darevsky ＆ Nguyen, 1983）, and provide evidence for the species status of Scincella rupicola. Our discovery brings the number of Scincellaspecies in Cambodia to five and emphasizes the incompleteness of knowledge on the herpetofaunal diversity of this country.

关键词： Mondulkiri Keo Seima WildlifeSanctuary Taxonomy mtDNA COl DNA barcoding phylogenetics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Impact of enteroscopy on diagnosis and management of small bowel tumors

引用

Chinese Journal of Cancer Research 2020年第3期32卷 319-333页

作者： Adriana Vaz Safatle-Ribeiro Ulysses Ribeiro jr. Endoscopy Unit of the Department of Gastroenterology Sao Paulo Cancer InstituteUniversity of Sao Paulo Medical School(ICESP-HCFMUSP)Sao Paulo 01327-002Brazil

Small bowel tumors(SBTs)have been increasingly diagnosed in recent *** pathogenesis of this increment is largely unknown,but advances in radiological and endoscopic methods facilitate the improvement of the *** endoscopy(CE)and device-assisted enteroscopy(DAE)allow the clinician to assess the entire small bowel in the search for suspicious lesions,or a cause of *** this review,we discuss the role of enteroscopy,techniques and strategies in the diagnosis and management of SBTs,and a brief description of the most common tumors.

关键词： Device-assisted enteroscopy capsule endoscopy double balloon endoscopy single balloon endoscopy small bowel tumors enteroscopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Transformative presidents： A Review of Definitions, Focused on the Reagan presidency

引用

International Relations and Diplomacy 2015年第7期3卷 487-495页

作者： William A. p. Thompson jr. University of Texas at Dallas Dallas USA

The most significant variable in ranking a president as transformative is the nature of his legacy. Reagan＇s legacy resulted from the Tea party＇s adoption of Reagan＇s conservative policy proposals, labeled the Reagan Revolution, or as Reagan defined in his farewell address, the ＂... Great Rediscovery, a recovery of our values and common sense＂（Skowronek, 1967, p. 95）. Transformative presidents create changes in the American political System. Stephen Skowronek has defined five transformational presidents whose administration transformed the American political system： Jefferson, Jackson, Lincoln, Franklin D. Roosevelt, and Reagan （Skowronek, 1967, p. 95）. Further, a comparison of the Reagan and Obama presidencies is included to explain why a president may be defined as being or not transformative. Each of these transformation repudiated their predecessor＇s policies. The Reagan Revolution enabled Reagan to become transformative by repudiating Carter＇s New Deal liberal and progressive policies. presidential scholars who deny the ability of presidents to become transformative do so based on their research that presidents lack the power to persuade Congress or change public opinion. Skowronek utilized Neustadt＇s theory of ＂periodization＂ to explain how the five transformational presidents each left through their ＂legacy＂, presidents who followed their policies. Reagan＇s followers included： George Bush, Clinton＇s centrist policies adhered to Reagan＇s, and George W. Bush. Obama was elected by repudiating his predecessor＇s policies. Whether Obama was transformative has yet to be determined.

关键词： transformative Reagan presidency periodization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Algal removal from cyanobacteria-rich waters by preoxidation-assisted coagulation-flotation: Effect of algogenic organic matter release on algal removal and trihalomethane formation

引用

Journal of Environmental Sciences 2018年第1期30卷 147-155页

作者： jr-Lin Lin Lap-Cuong Hua Shih Kai Hung Chihpin Huang Department of Environmental Engineering Chung Yuan Christian University Institute of Environmental Engineering National Chiao Tung University

The cyanobacteria-bloom in raw waters frequently causes an unpredictable chemical dosing of preoxidation and coagulation for an effective removal of algal cells in water treatment plants. This study investigated the effects of preoxidation with NaOCl and ClO_2 on the coagulation-flotation effectiveness in the removal of two commonly blooming cyanobacteria species, Microcystis aeruginosa（MA） and Cylindrospermopsis raciborskii（CR）, and their corresponding trihalomethane（THM） formation potential. The results showed that dual dosing with NaOCl plus ClO_2 was more effective in enhancing the deformation of cyanobacterial cells compared to single dosing with Na OCl, especially for CR-rich *** preoxidation approaches for CR-rich water effectively reduced the CR cell count with less remained dissolved organic carbon（DOC）, which benefited subsequent coagulation–flotation. However, preoxidation led to an adverse release of algogenic organic matter（AOM） in the case of MA-rich water. The release of AOM resulted in a poor removal in MA cells and a large amount of THM formation after oxidation-assisted coagulation-flotation process. The reduction in THM formation potential of CR-rich waters is responsible for effective algae and DOC removal by alum coagulation. It is concluded that the species-specific characteristic of cyanobacteria and their AOM released during chlorination significantly influences the performance of coagulation–flotation for AOM removal and corresponding THM formation.

关键词： Algogenic organic matter preoxidation Coagulation-flotation Disinfection-by-products

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：