检索结果-南通市图书馆

Advances in Climate Change Research 2020年第1期11卷 31-39页

作者： Vidhya VENUGOPAL P.K.LATHA Rekha SHANMUGAM Manikandan KRISHNAMOORTHY Priscilla JOHNSON Faculty of Public Health Sri Ramachandra Institute of Higher Education and ResearchChennai600116India department of Physiology Sri Ramachandra Institute of Higher Education and ResearchChennai600116India

Rising temperature and heat stress risks in the changing climate scenario might potentially affect workers globally,especially the ones with strenuous workload in tropical *** used a cross-sectional study design to profile the heat exposures of-1900 workers from eight industrial sectors using a Ques Temp Wet Bulb Globe Temperature(WBGT)monitor,quantified select heat-strain indicators viz.,rise in Core Body Temperature,Sweat Rate,and Urine Specific Gravity and evaluated the perceived health impacts of heat stress using a structured *** exposures(average WBGT:30.1±2.6℃)exceeded the Threshold Limit Value for 67%workers and was positively associated with the rise in Core Body Temperature>1℃ in 13%and elevated Urine Specific Gravity>1.020 in 9%***-related health concerns were reported by 86%workers,and the heat-exposed workers had 2.3 times higher odds of adverse health outcomes compared to unexposed workers(p<0.0001).Exposure to higher WBGT and adverse renal health among salt-pan workers were significantly associated(p=0.004),and steel workers had 9% prevalence of kidney *** presented clearly points to heat stress as a health and productivity risk factor that could have long-term and irreversible health ***-depth assessments are urgently needed to develop scientifically sound preventative interventions and protective labor policies to avert the adverse occupational health and productivity consequences for millions of workers globally,thereby aiding poverty reduction.

关键词： Climate change Occupational heat stress Physiological heat strain Renal issues Dehydration Workload

Contributions of moisture sources to precipitation in the major drainage basins in the Tibetan Plateau

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

science China Earth sciences 2022年第6期65卷 1088-1103页

作者： Ying LI Fengge SU Qiuhong TANG Hongkai GAO Denghua YAN Hui PENG Shangbin XIAO engineering Research Center of Eco-environment in Three Gorges Reservoir Region Yichang 443002China College of Hydraulic and Environmental engineering China Three Gorges UniversityYichang 443002China State Key Laboratory of Tibetan Plateau Earth System Resources and Environment(TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of Sciences(CAS)Beijing 100101China University of Chinese Academy of sciences Beijing 100101China CAS Center for Excellence in Tibetan Plateau Earth sciences Beijing 100101China Key Laboratory of Water Cycle and Related Land Surface Process Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Geographic Information science(Ministry of Education of China) East China Normal UniversityShanghai 200241China State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin Water Resources DepartmentChina Institute of Water Resources and Hydropower ResearchBeijing 100038China

Tracking and quantifying the moisture sources of precipitation in different drainage basins in the Tibetan Plateau(TP)help to reveal basin-scale hydrological cycle characteristics under the interactions between the westerlies and indian summer monsoon(ISM) systems and to improve our understanding on the mechanisms of water resource changes in the ‘Asian Water Tower' under climate changes. Based on a Eulerian moisture tracking model(WAM-2) and three atmospheric reanalysis products(ERA-I, MERRA-2, and JRA-55), the contributions of moisture sources to the precipitation in six major sub-basins in the TP were tracked during an approximately 35-year period(1979/1980–2015). The results showed that in the upper Indus(UI),upper Tarim River(UT), and Qaidam Basin(QB), the moisture sources mainly extended westward along the mid-latitude westerlies to the western part of the Eurasian continent. In contrast, in the Yarlung Zangbo River Basin(YB), inner TP(ITP), and the source area of three eastern rivers(TER, including the Nujiang River, Lancang River, and Yangtze River), the moisture sources extended both westward and southward, but mainly southward along the ISM. In winter and spring, all of the sub-basins were dominated by western moisture sources. In summer, the western sources migrated northward with the zonal movement of the westerlies, and simultaneously the southern sources of the YB, ITP, and TER expanded largely toward the indian Ocean along the ISM. In autumn, the moisture sources of the UI, UT, and QB shrank to the western sources, and the moisture sources of the YB, ITP, and TER shrank to the central-southern TP and the indian subcontinent. By quantifying the moisture contributions from multiple sources, we found that the terrestrial moisture dominated in all of the sub-basins, particularly in the UT and QB(62–73%). The oceanic contributions were relatively high in the UI(38–42%) and YB(38–41%). In winter, evaporation from the large western water bodies(such as the M

关键词： Tibetan Plateau Precipitation Moisture sources Westerlies indian summer monsoon Local recycling

A framework for considering ecological interactions for common non-timber forest product species:a case study of mountain date palm(Phoenix loureiroi Kunth)leaf harvest in South India

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

Ecological Processes 2013年第1期2卷 212-220页

作者： Lisa Mandle Tamara Ticktin Snehlata Nath Siddappa Setty Anita Varg Botany department University of Hawai'i at MānoaMānoaHawai'iUSA Ecology Evolution and Conservation Biology ProgramUniversity of Hawai'i at MānoaMānoaHawai'iUSA Keystone Foundation KotagiriTamil NaduIndia Ashoka Trust for Research in Ecology and the Environment BangaloreKarnatakaIndia Natural Capital Project Woods Institute for the EnvironmentStanford UniversityStanfordCAUSA.

Introduction:Many economically important non-timber forest products(NTFPs)come from widespread and common plant *** of these species often is assumed to be sustainable due to their ***,because of the ecological roles of common species,harvest may affect and be affected by ecological interactions at broader scales,which are rarely considered when evaluating the sustainability of *** use a case study of the mountain date palm(Phoenix loureiroi Kunth),harvested in South India to produce brooms,to present a conceptual framework illustrating how intensive harvest of a common species interacts with other anthropogenic management practices,plant-animal interactions and surrounding environmental ***:We apply this framework to understanding the impacts of mountain date palm harvest in the southern Western Ghats regions of the indian states of Tamil Nadu and *** integrate data on the extent and levels of commercial harvest,local management practices,the ecological context in which harvest occurs,and research on harvest *** use this information to document the intensity and extent of mountain date palm harvest in the study area,identify the ecological implications of harvest,and demonstrate how a framework that considers harvest in the context of ecological communities and ecosystems is important for assessing the impacts of harvest of common NTFP ***:We show that mountain date palm leaves are heavily harvested from natural areas in the southern Western Ghats but that harvest levels have declined in recent *** date palm management and harvest occur within a network of ecological interactions,linking human activities to population-,community-,and ecosystem-level *** demonstrate that understanding the effects of return interval of anthropogenic fire,herbivory by wild animals and livestock,as well as the light environment in which harvest occurs are critical to assessing the sustainab

关键词： Non-timber forest product(NTFP) Western Ghats Savanna woodland Resource management Plant-animal interactions Fire Herbivory

Insight into the liver dysfunction in COVID-19 patients: Molecular mechanisms and possible therapeutic strategies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2023年第14期29卷 2064-2077页

作者： Naina Khullar Jasvinder Singh Bhatti Satwinder Singh Bhawana Thukral P Hemachandra Reddy Gurjit Kaur Bhatti department of Zoology Mata Gujri CollegeFatehgarh Sahib 140407PunjabIndia Laboratory of Translational Medicine and Nanotherapeutics Department of Human Genetics and Molecular MedicineSchool of Health SciencesCentral University of PunjabBathinda 151401PunjabIndia department of Computer science and Technology Central University of PunjabBathinda 151401PunjabIndia department of Nutrition and Dietetics University Institute of Applied Health SciencesChandigarh UniversityMohali 140413PunjabIndia department of Internal Medicine Texas Tech University Health Sciences CenterLubbockTX 79430United States department of Medical Lab Technology University Institute of Applied Health SciencesChandigarh UniversityMohali 140413PunjabIndia

As of June 2022,more than 530 million people worldwide have become ill with coronavirus disease 2019(COVID-19).Although COVID-19 is most commonly associated with respiratory distress(severe acute respiratory syndrome),metaanalysis have indicated that liver dysfunction also occurs in patients with severe *** studies revealed distinctive patterning in the receptors on the hepatic cells that helps in viral invasion through the expression of angiotensinconverting enzyme *** has also been reported that in some patients with COVID-19,therapeutic strategies,including repurposed drugs(mitifovir,lopinavir/ritonavir,tocilizumab,etc.)triggered liver injury and cholestatic *** proven indicators support cytokine storm-induced hepatic *** there are 1.5 billion patients with chronic liver disease worldwide,it becomes imperative to critically evaluate the molecular mechanisms concerning hepatotropism of COVID-19 and identify new potential *** review also designated a comprehensive outlook of comorbidities and the impact of lifestyle and genetics in managing patients with COVID-19.

关键词： COVID-19 Liver damage Pharmacotherapy Cytokine storm Molecular mechanisms

DNA cyclic codes over the ring F2[u, v]/ （u^2 - 1, v^3 - v, uv - vu）

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Biomathematics 2018年第3期11卷 247-265页

作者： Hai Q. Dinh Abhay Kumar Singh Sukhamoy Pattanayak Songsak Sriboonchitta Division of Computational Mathematics and engineering institute for Computational science Ton Duc Thang University Ho Chi Minh City Vietnam Faculty of Mathematics and Statistics Ton Duc Thang University Ho Chi Minh City Vietnam department of Mathematical sciences Kent State University 4314 Mahoning Avenue Warren Ohio 44483 USA department of Applied Mathematics indian institute of Technology (ISM) Dhanbad 826004 India Faculty of Economics Chiang Mai University Chiang Mai 52000 Thailand

In this paper, our main objective is to find out the necessary and sufficient conditions for a cyclic code of arbitrary length over the ring of four elements R1 = F2 ＋ u2 （u^2 = 1） to be a reversible cyclic code. We also obtain the structure of cyclic DNA codes of odd length over the ring R = F2 [u, v]/（u^2 -1, v^3 -v, uv- vu）, which plays an important role in Computational Biology. Furthermore, we establish a direct link between the elements of ring /{ and 64 codons used in the amino acids of living organisms by introducing a Gray map from R to R1. Among others, binary images of cyclic codes over R are also investigated. As applications, some cyclic DNA codes over R using the Gray map are provided.

关键词： Cyclic DNA codes reversible cyclic codes reversible-complement cyclic codes gray map.

Trace analysis of off-flavor/odor compounds in water using liquid-liquid microextraction coupled with gas chromatography--positive chemical ionization-tandem mass spectrometry

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Frontiers of Environmental science & engineering 2016年第3期10卷 477-481页

作者： Jian LU Paul S. WILLS P. CHRIS WILSON indian River Research and Education Center University of Florida/IFAS 2199 South Rock Road Fort Pierce FL 34945-3138 USA Harbor Branch Oceanographic institute at Florida Atlantic University 5600 U.S. 1 North Fort Pierce FL 34946 USA

A rapid, inexpensive and laboratory friendly method was developed for analysis of off-flavor/odor compounds in fresh and salt water using gas chromatography with chemical ionization-tandem mass spectrometry. Off-flavor/odor compounds, included geosmin, 2- methylisobomeol （MIB）, 2-isobutyl-3-methyoxypyrazine （IBMP）, and 2-isopropyl-3-methoxypyrazine （IPMP）. Using this method, a single sample can be extracted within minutes using only 1 mL of organic solvent. The ion transitions for IPMP, IBMP, MIB, and geosmin were 153 〉 121, 167 〉 125, 152 〉 95, and 165 〉 109, respectively. The linearity of this method for analyzing MIB ranged from 4 to 200ng·L^-1, and from 0.8 to 200ng·L^-1 for the other analytes. Method recoveries ranged from 97% to 111% and percent relative standard deviations ranged from 3% to 9%, indicating that the method is accurate, precise, and reliable.

关键词： off-flavor/odor compounds liquid-liquid microextraction gas chromatography-tandem mass spectrometry

Thermal Decomposition Behavior and Kinetic Study of Jamadoba Coal and Its Density Separated Macerals: A Non-Isothermal Approach

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

Advances in Chemical engineering and science 2021年第3期11卷 203-227页

作者： Deepak Chandra Sau Amit Banerjee Sanchita Chakravarty Pragyan Senapati Rabiranjan Murmu Harekrushna Sutar CSIR-National Metallurgical Laboratory Jamshedpur India Mechanical engineering department ITER SOA Deemed to Be University Bhubaneswar India Chemical engineering department Indira Gandhi Institute of Technology Sarang India

This kinetic study focuses on determining the thermal gravimetric profile of a particular grade of indian sub-bituminous coal. A thermogravimetric analyzer (TGA-1000) was employed to investigate the thermal behavior and extract the kinetic parameters of Jamadoba coal and its corresponding density separated macerals. The weight loss was measured in air atmosphere. The coal samples used in this study were obtained from Jamadoba mines, Jharkhand. Samples of 35 mg and 200 μm mean size were subjected to synthetic air atmospheres (21% O2). Heating rates of 2, 5 and 7°C/min were applied until the temperature reached 1400°C, which was kept constant until burnout. Low heating rate was preferred so that devolatilization occurs prior to ignition and combustion. Derivative thermogravimetry (DTG) analysis method was applied to measure the weight changes and rates of weight loss used for calculating the kinetic parameters. The activation energy (E

Fundamentals and comprehensive insights on pulsed laser synthesis of advanced materials for diverse photo-and electrocatalytic applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(science & Applications) 2022年第9期11卷 2018-2064页

作者： Jayaraman Theerthagiri K Karuppasamy Seung Jun Lee R.Shwetharani Hyun-Seok Kim S.K Khadheer Pasha Muthupandian Ashokkumar Myong Yong Choi Core-Facility Center for Photochemistry&Nanomaterials Department of ChemistryResearch Institute of Natural SciencesGyeongsang National UniversityJinju 52828Republic of Korea Division of Electronics and Electrical engineering Dongguk University-SeoulSeoul 04620Republic of Korea Centre for Nano and Material sciences Jain UniversityJain Global CampusKanakapuraBangalore 562112 KarnatakaIndia department of Physics Vellore Institute of Technology(Amaravati Campus)Amaravati522501 GunturAndhra PradeshIndia School of Chemistry University of MelbourneParkville CampusMelbourneVIC 3010Australia

The global energy crisis is increasing the demand for innovative materials with high purity and functionality for the development of clean energy production and *** development of novel photo-and electrocatalysts significantly depends on synthetic techniques that facilitate the production of tailored advanced *** emerging use of pulsed laser in liquid synthesis has attracted immense interest as an effective synthetic technology with several advantages over conventional chemical and physical synthetic routes,including the fine-tuning of size,composition,surface,and crystalline structures,and defect densities and is associated with the catalytic,electronic,thermal,optical,and mechanical properties of the produced ***,we present an overview of the fundamental understanding and importance of the pulsed laser process,namely various roles and mechanisms involved in the production of various types of nanomaterials,such as metal nanoparticles,oxides,non-oxides,and carbon-based *** mainly cover the advancement of photo-and electrocatalytic nanomaterials via pulsed laser-assisted technologies with detailed mechanistic insights and structural optimization along with effective catalytic performances in various energy and environmental remediation ***,the future directions and challenges of pulsed laser techniques are briefly *** review can exert practical guidance for the future design and fabrication of innovative pulsed laser-induced nanomaterials with fascinating properties for advanced catalysis applications.

关键词： insight synthesis comprehensive

Hydrometeorological assessments and suspended sediment delivery from a central Himalayan glacier in the upper Ganga basin

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Sediment Research 2018年第4期33卷 493-509页

作者： Amit Kumar Akshaya Verma Anupam Anand Gokhale Rakesh Bhambri Anshuman Misra Shipika Sundriyal Dwarika Prasad Dobhal Naval Kishore Centre for Glaciology Wadia Institute of Himalayan Geology Centre of Advanced Study in Geology Department of Geology Panjab University

Integrated hydrometeorological investigations are not frequently available at a regional scale over a longer time period, especially near the terminus of indian Himalayan glaciers. An integrated approach to the collection of hydrological data has major advantages for understanding the runoff generation mechanisms at basin scale, particularly when coupled with meteorological observations. The current study involves time series analysis of hydrometeorological records collected near the terminus of the Chorabari Glacier, for four consecutive ablation seasons(June-Sept.) 2009-2012. The analysis shows that variation in rainfall was higher(c= 0.9) at the same elevation over proximal sites, while the intensity of extreme rainfall events was 121-160 mm/d. The diurnal temperature range(DTR) has a tendency to reduce over the ablation season because of the onset of the indian Summer Monsoon(ISM) and then further increases during the ISM withdrawal indicating humid-temperate conditions. The peak discharge(Qpeak) was found to be higher during July and August. Snow and glacier melt contributed 76% of the total suspended sediment transport during peak ISM months(July and August) reflecting seasonal evolution of the hydrologic conduits. The results indicate that Karakoram and western Himalayan glaciers produce comparatively low sediment yield compared to central Himalayan glaciers. The hydrological variations are depicted through flow duration curves(FDC) for meltwater discharge and sediment load. The flow corresponding to Q, Q, and Q(where Qx is the discharge that is exceeded x percent of the time referred to as % dependability) are 4.2, 3.7, and 2.8 m~3/s; and the corresponding dependability for suspended sediment loads(SSLs) are 409.0, 266.0, and 157.2 t/d, respectively. The daily SSL and discharge(Q) from 2009 to 2012 were used to develop a sediment rating curve(SSL = 39.55 × Q. R~2 = 0.8).Multiple regressions are used to determine the impacts of meteorological parameters on gl

关键词： High elevation meteorology Suspended sediment transport Flow duration curves Multivariate regression indian summer monsoon