搜索结果: 1-15 共查到“国际动态 理学 evolution”相关记录56条 . 查询时间(0.194 秒)
Tejal Desai: The evolution of engineering at Brown has been amazing to witness（图）
工程学 生物医学 细胞生物学
2023/6/26
At the end of her first academic year as dean, Tejal Desai reflects on what she learned and describes how Brown’s School of Engineering is building on distinctive strengths to advance its academic ent...
If we could rewind the tape of species evolution around the world and play it forward over hundreds of millions of years to the present day, we would see biodiversity clustering around regions of tect...
3 Questions: A new model of nervous system form, function, and evolution（图）
神经系统形态 神经科学模型 Brady·Weissbourd
2023/6/5
How does animal behavior emerge from networks of connected neurons? How are these incredible nervous systems and behaviors actually generated by evolution? Are there principles shared by all nervous s...
MIT neuroscientists have found a way to reverse neurodegeneration and other symptoms of Alzheimer’s disease by interfering with an enzyme that is typically overactive in the brains of Alzheimer’s pati...
Genomic differences selected through evolution may offer clues as to why COVID-19 outcomes vary widely（图）
基因组差异 病毒学 COVID-19
2023/7/11
Though underlying medical conditions play an important role, many aspects of why COVID-19 severity can differ vastly from one person to another have remained unclear.
Despite the sheer number of genes that each human cell contains, these so-called “coding” DNA sequences comprise just 1 percent of our entire genome. The remaining 99 percent is made up of “non-coding...
How asteroid, comet strikes may have delayed evolution of atmosphere（图）
小行星 彗星撞击 大气科学 高层大气物理学
2023/6/21
Between 2.5 and 4 billion years ago, a time known as the Archean eon, Earth’s weather could often be described as cloudy with a chance of asteroid.
Back then, it was not uncommon for asteroids or com...
Unraveling arthropod genomic diversity over 500 million years of evolution（图）
arthropod genomic diversity 500 million years evolution
2020/2/20
Comparative analyses by scientists at the Swiss Institute of Bioinformatics and other institutions of 76 arthropod species spanning 500 million years of evolution reveal genomic changes that point to ...
Researchers trace evolution of the domesticated tomato（图）
Researchers trace evolution domesticated tomato
2020/1/19
In a new paper, a team of evolutionary biologists and geneticists led by Ana Caicedo and Hamid Razifard of the University of Massachusetts Amherst report that they have identified missing li...
Virtual 'UniverseMachine' sheds light on galaxy evolution（图）
Virtual UniverseMachine sheds light galaxy evolution
2019/10/21
How do galaxies such as our Milky Way come into existence? How do they grow and change over time? The science behind galaxy formation has long been a puzzle, but a University of Arizona-led team of sc...
New dinosaur with heart-shaped tail offers clues to evolution of Africa's ecosystems（图）
New dinosaur heart-shaped tail evolution of Africa ecosystems
2019/11/22
A dinosaur that wore its "heart" on its tail is providing new clues to how ecosystems evolved on the African continent during the Cretaceous Period some 100 million years ago, according to researchers...
New Approach Measuring Early Butchering Practices Can Help Answer Questions About Evolution（图）
Measuring Early Butchering Practices Answer Questions About Evolution
2017/12/19
Researchers, led by a Purdue University anthropology professor, have found that statistical methods and 3D imaging can be used to accurately measure animal bone cut marks made by prehistoric human but...
When Physics Gives Evolution a Leg Up by Breaking One
Physics Evolution a Leg Up Breaking One
2017/12/18
Genetic mutation may drive evolution, but not all by itself. Physics can be a powerful co-pilot, sometimes even setting the course.In a new study, physicists and evolutionary biologists at the Georgia...
LSU Researchers Discover Minerals in Volcanic Rock that May Offer New Insights into the First 1.5 Billion Years of Earth's Evolution（图）
LSU Researchers Minerals Volcanic Rock First 1.5 Billion Years Earth's Evolution
2017/11/23
The first 1.5 billion years of Earth’s evolution is subject to considerable uncertainty due to the lack of any significant rock record prior to four billion years ago and a very limited record until a...
Are cities affecting evolution?（图）
cities evolution
2017/11/23
The recent uproar about seats on a British Airways flight crawling with bedbugs is only one of the unintended consequences that urbanization worldwide has on evolution, say Marc Johnson, an associate ...