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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：erration split-plot designs via complementary sets when the whole plot factors are important
图因子 互补集 错误分割图设计
2023/5/15
In practice, fractional factorial split-plot (FFSP) designs are widely used when the levels of some factors are very difficult to change or control. The factors of an FFSP design are divided into two ...
Within a given tissue or organ, cells may appear very similar or even identical. But at the molecular level, these cells can have small differences that lead to wide variations in their functions.
Unlike electrons, quarks cannot wander freely in ordinary matter. They are confined by the strong force within hadrons such as the protons and neutrons that make up atomic nuclei. However, at very hig...
Knowing a big deal when you see it（图）
化石 爬行动物 鳞龙
2023/6/21
It’s not uncommon for scientists to have to run experiments numerous times to see whether they have a big discovery on their hands. Every once in a while, though, a researcher makes a big find more or...
New study helps pinpoint when Earth's plate subduction began（图）
New study pinpoint when Earth plate subductiona
2020/12/18
A U.S. National Science Foundation-funded study by scientists at the Scripps Institution of Oceanography and the University of Chicago sheds light on a major question in Earth sciences:...
Soot may be half the problem when it comes to cookstoves（图）
Soot half problem comes cookstoves
2020/4/26
The telltale signature of a cookstove, commonly used to prepare food or provide heat by burning wood, charcoal, animal dung or crop residue, is the thick, sooty smoke that rises from the flames. Its r...
When it comes to climate, plants and animals aren't so different（图）
climate plants animals different
2020/3/27
Despite fundamental differences in their biology, plants and animals are surprisingly similar in how they have evolved in response to climate, according to a new National Science Foundation-funde...
Where'd you get those genes? Individual growth can vary wildly when populations interbreed（图）
genes Individual growth vary wildly populations interbreed
2020/3/20
Scientists at Scripps Institution of Oceanography at the University of California San Diego have discovered why some hybrids between populations of the same species don't develop as well as others. Th...
Parasitic worms have armies, produce more soldiers when needed（图）
Parasitic worms armies soldiers needed
2020/3/6
In estuaries around the world, tiny trematode worms take over the bodies of aquatic snails. These parasitic flatworms invade the snails’ bodies and use them to support the worm colony, sometimes for m...
Lemurs rely on scent when it comes to finding a mate（图）
Lemurs rely on scent finding a mate
2019/10/28
A study of lemur scents funded by the National Science Foundation and conducted by researchers at Duke University finds that an individual's distinctive body odor reflects genetic differences in its i...
Iridium 'loses its identity' when interfaced with nickel（图）
Iridium loses identity interfaced nickel
2019/10/17
Note to physicists and materials scientists: You'd better reevaluate your work if you study iridium-based materials -- members of the platinum family -- when they are ultra-thin.Iridium "loses its ide...
When coral reefs change, researchers and local fishing communities see different results（图）
coral reefs change researchers local fishing communities different results
2019/11/22
Find related stories on NSF's Environmental Research and Education (ERE) programs at this link; find related stories on NSF's Long-Term Ecological Research Program at this link.Results of a new study ...
Scientists Get Better Numbers On What Happens When Electrons Get Wet（图）
Scientists Better Numbers Electrons Get Wet
2018/2/1
There’s a particular set of chemical reactions that governs many of the processes around us—everything from bridges corroding in water to your breakfast breaking down in your gut. One crucial part of ...
A Horse Is A Horse,Of Course,Of Course—Except When It Isn’t（图）
A Horse Is A Horse Except When It Isn’t
2017/12/18
An international team of researchers has discovered a previously unrecognized genus of extinct horses that roamed North America during the last ice age.
The new findings, published November 28 in the...
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...