搜索结果: 1-15 共查到“Migration”相关记录407条 . 查询时间(0.127 秒)
Branched plasticizers derived from eugenol via green polymerization for low/non-migration and externally/internally plasticized polyvinyl chloride materials
Waste residues of the?rosin?processing industry Eugenol Sustainable plasticizer Green polymerization
2023/11/30
The synthesis of nontoxic plasticizers derived from the waste residues of the?rosin?-processing industry can reduce pollution and promote the high-value utilization of the waste resi-dues of?rosin. In...
Climate conditions during the migration of Homo sapiens out of Africa reconstructed
climate condition Africa dry-humid climate
2021/8/4
An international research team led by Professor Dr Frank Schäbitz has published a climate reconstruction of the last 200,000 years for Ethiopia. This means that high-resolution data are now avail...
Warm oceans helped first human migration from Asia to North America（图）
Warm oceans first human migration Asia to North America
2020/12/31
New research reveals significant changes in the circulation of the North Pacific Ocean and their impact on the initial migration of humans from Asia to North America.The U.S. National Science Fou...
中国地质大学科学技术发展院刘小康（博士生），宋海军*等，地学院/BGEG国家重点实验室. Earth-Science Reviews (2020), Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China（图）
孔虫；灭绝事件；深水迁移；幸存策略；海洋生物；重大环境；线索
2021/10/15
近日，中国地质大学地学院和生环国重2020级博士生刘小康为第一作者的研究论文“Migration controls extinction and survival patterns of foraminifers during the Permian-Triassic crisis in South China”在国际著名地学期刊《Earth-Science Reviews》上发表，通讯作者为宋海...
For rufous hummingbirds, migration routes may differ（图）
rufous hummingbirds migration routes
2020/7/31
Plucky, beautiful, and declining in numbers at about 2% annually, rufous hummingbirds make their long annual migrations in different timing and route patterns based on age and sex, new U.S. Natio...
Driven by Earth's orbit, climate changes in Africa may have aided human migration（图）
Driven by Earth's orbit climate changes Africa may aided human migration
2020/2/20
In 1961, John Kutzbach, then a recent college graduate, was stationed in France as an aviation weather forecaster for the U.S. Air Force. There, he found himself exploring the storied caves of Dordogn...
New insights into genetic basis of bird migration（图）
New insights genetic basis bird migration
2019/10/18
A gene associated with the migratory patterns of golden-winged and blue-winged warblers could lend insight into the longstanding question of how birds migrate across long distances.A new study led by ...
MIGRATION OF DIGITAL CARTOGRAPHY TO CITYGML; A WEB-BASED TOOL FOR SUPPORTING SIMPLE ETL PROCEDURES
CityGML GIS Extract Transform and Load ETL, Open Source
2018/11/9
Digital cartography is notably produced in all countries, in different scales and formats. Latest cartographic production aims at creating 3D objects with topological consistency and rich information ...
Drift, selection, or migration? Processes affecting genetic differentiation and variation along a latitudinal gradient in an amphibian
Genetic drift Natural selection Major histocompatibility complex
2017/8/25
Past events like fluctuations in population size and post-glacial colonization processes may influence the relative importance of genetic drift, migration and selection when determining the present da...
MIGRATE: A FOSS WEB MAPPING APPLICATION FOR EDUCATING AND RAISING AWARENESS ABOUT MIGRATION FLOWS IN EUROPE
Web mapping Open Source Open Data FOSS Crowd-generated data Human migration
2017/8/10
Recent years have seen a noticeable growth in migration flows from Africa and Middle East to Southern Europe, thus generating a remarkable increase of attention on media and public opinion, sometimes ...
Barrier-island migration drives large-scale marsh loss（图）
Barrier-island migration drives large-scale marsh loss
2017/2/16
If you’ve visited the Outer Banks or other barrier islands, you’ve likely experienced their split personalities—places where high waves can pound the sandy ocean shore while herons stalk placid saltma...
The 2017 Gordon Research Conference on Directed Cell Migration
Directed Cell Migration cell migration
2017/1/19
Directed cell migration is a spectacular feature of normal development and tissue homeostasis. Without cell migration, embryos would not develop, wounds would never heal, and the immune system could n...
Arctic sea ice loss impacts beluga whale migration
Arctic sea ice loss beluga whale migration
2017/2/15
The annual migration of some beluga whales in Alaska is altered by sea ice changes in the Arctic, while other belugas do not appear to be affected.A new study led by the University of Washin...
MEASURING POLYCENTRICITY OF MEGA-CITY REGIONS IN CHINA BASED ON THE INTERCITY MIGRATION FLOWS
Migration Flows Mega-city Region Polycentricity Chinese City Social Media Data
2016/11/15
This paper uses the intercity migration flows to examine relations between Chinese cities, identify the important mega-city regions and measure each region's polycentricity from an interaction perspec...
RELATIONSHIP BETWEEN CLIMATE CHANGE IMPACT, MIGRATION AND SOCIOECONOMIC DEVELOPMENT
Migration rural agriculture urban climate change
2016/11/8
Geospatial data are available in raster and vector formats and some of them are available in open data form. The technique and tools to handle those data are also available in open source. Though it i...