搜索结果: 1-15 共查到“理学 US”相关记录109条 . 查询时间(0.062 秒)
What fossils tell us about the dining habits of dinosaurs（图）
Earth and Environmental Science Veterinary Medicine Research
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2023/6/29
Dinosaur paleontologists are detectives, piecing together clues from fragments of fossils to decipher what a whole organism looked like, how it moved, and how it behaved. While even a preschooler coul...
Returning solar panel production to US eases climate change
太阳能电池板 生产恢复 美国 气候变化
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2023/5/17
Domestic production of solar panels – most of which are now made in Asia – can speed up decarbonization in the U.S. and reduce climate change faster, according to new Cornell Engineering research publ...
Getting the asteroid before it gets us（图）
小行星 天体物理学 双小行星重定向测试
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2023/6/25
Last week, the stuff of Hollywood blockbusters became a reality when NASA launched its Double Asteroid Redirection Test (DART), a small spacecraft that will smash into an asteroid sometime in Septembe...
Understanding past climate change 'tipping points' can help us prepare for the future
extreme climate change Earth system models hydrosphere
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2021/8/2
Of all the creatures on Earth, humans manipulate their environments the most. But, how far can we push it before something drastic happens? Scientists are calling for a better understanding of past ex...
US corn and soybean maladapted to climate variations
climate variations extreme weather crop yield
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2021/8/4
U.S. corn and soybean varieties have become increasingly heat and drought resistant as agricultural production adapts to a changing climate. But the focus on developing crops for extreme conditions ha...
Natural hazards threaten 57% of US structures
natural disasters temperature environmental change structures
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2021/8/4
More than half of the structures in the contiguous United States are exposed to potentially devastating natural hazards -- such as floods, tornadoes and wildfires -- according to a new study in the AG...
How a memory game could help us understand brain injury（图）
memory game understand brain injury
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2020/7/17
After a traumatic brain injury, why do some people regain skills quickly while others face long-lasting setbacks? Boston Universityneuroscientist Jerry Chen of BU's Center for Systems Neuroscienc...
Climate change could dramatically reduce US snowstorms（图 ）
Climate change dramatically reduce US snowstorms
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2020/6/12
A National Science Foundation study led by Northern Illinois University scientists suggests that American winters late this century could experience significant decreases in the fr...
Climate-driven megadrought is emerging in western US, study finds（图）
Climate-driven megadrought emerging western US
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2020/5/9
With the western United States and northern Mexico suffering an ever-lengthening string of dry years, scientists have been warning that climate change may be pushing the region toward an extreme, long...
Online Platform Used In Schools Across US Helps Students Perform Higher On Standardized Math Tests（图）
Online Platform Schools Across US Students Perform Higher Standardized Math Tests
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2018/1/10
Web-based platforms enhance teaching and learning in the classroom.Today, 100,000 students across the U.S. use an online mathematics tutoring and assessment program developed by an NSF-funded research...
Climate Change Damages US Economy,Increases Inequality（图）
Climate Change Damages US Economy Increases Inequality
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2017/7/24
Unmitigated climate change will make the United States poorer and more unequal, according to a new study published today in the journal Science. The poorest third of counties could sust...
Emerging biotech with potential to improve US health care on display at 2017 International BIO Convention
Emerging biotech US health care 2017 International BIO Convention
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2017/7/21
Small businesses and startups funded by the National Science Foundation (NSF) will display emerging biotechnology at the 2017 BIO International Convention Innovation Zone June 19-22 in San D...
Circulating concentrations of biomarkers and metabolites related to vitamin status, one-carbon and the kynurenine pathways in US, Nordic, Asian, and Australian populations
biomarker Lung Cancer Cohort Consortium one-carbon metabolism tryptophan metabolism vitamin status
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2018/11/14
Background: Circulating concentrations of biomarkers that are related to vitamin status vary by factors such as diet, fortification, and supplement use. Published biomarker concentrations have also be...
The role of obesity in the relation between total water intake and urine osmolality in US adults, 2009–2012
effect modification hydration status NHANES obesity water intake
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2018/12/19
Background: Adequate water intake is critical to physiologic and cognitive functioning. Although water requirements increase with body size, it remains unclear whether weight status modifies the relat...
Nutrition facts panel use is associated with higher diet quality and lower glycated hemoglobin concentrations in US adults with undiagnosed prediabetes
diet quality food label glucose control health claims nutrition facts panel prediabetes
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2018/12/19
Background: The majority of US consumers use the nutrition facts panel (NFP) or health claims for food selections. Although previous studies have consistently reported positive impacts of NFP use on d...