搜索结果: 16-30 共查到“理学 Cause”相关记录39条 . 查询时间(0.287 秒)
Ocean acidification may cause dramatic changes to phytoplankton
Ocean acidification cause dramatic changes phytoplankton
2015/8/4
Oceans have absorbed up to 30 percent of human-made carbon dioxide around the world, storing dissolved carbon for hundreds of years. As the uptake of carbon dioxide has increased in the last century, ...
A lion tale: Humans cause most mountain lion deaths in Southern California
lion tale Humans cause most mountain lion deaths Southern California
2015/8/4
The biggest threat to Southern California mountain lions is us, confirms a comprehensive 13-year study of the population’s mortality and survival from the University of California, Davis.The study, pu...
Physical activity and all-cause mortality across levels of overall and abdominal adiposity in European men and women: the European Prospective Investigation into Cancer and Nutrition Study (EPIC)
cohort study epidemiology obesity physical activity exercise mortality population attributable fraction
2018/12/24
Background: The higher risk of death resulting from excess adiposity may be attenuated by physical activity (PA). However, the theoretical number of deaths reduced by eliminating physical inactivity c...
The atmospheric conditions associated with the unprecedented drought in California are very likely linked to human-caused climate change, researchers report.
Finding supports model on cause of DNA's right-handed double helix（图）
The double helix structure Cosmic ray electrons Bolt Nut Screw Nano Molecular physics DNA
2014/10/9
The DNA of every organism on Earth is a right-handed double helix, but why that would be has puzzled scientists since not long after Francis Crick and James Watson announced the discovery of DNA's dou...
Professors' super waterproof surfaces cause water to bounce like a ball
Professors' super waterproof surfaces water to bounce like a ball
2014/6/19
In a basement lab on BYU’s campus, mechanical engineering professor Julie Crockett analyzes water as it bounces like a ball and rolls down a ramp.
This phenomenon occurs because Crockett and her coll...
Research finds human impact may cause Sierra Nevada to rise, increase seismicity of San Andreas Fault
Research finds human impact Sierra Nevada to rise increase seismicity San Andreas Fault
2014/6/12
Like a detective story with twists and turns in the plot, scientists at the University of Nevada, Reno are unfolding a story about the rapid uplift of the famous 400-mile long Sierra Nevada mountain r...
More than 97 per cent of 4000 international scientific papers analysed in a University of Queensland-led study were rated as endorsing human-caused global warming.
Shear heating not a cause of inverted metamorphism
Shear heating not a cause inverted metamorphism
2014/4/15
An archetypal example of inverted metamorphism purportedly resulting from shear heating is found in the Pelona Schist of southern California (United States). Recent studies demonstrate that the Pelona...
The Nature and Cause of Spectral Variability in LMC X-1
Nature Cause Spectral Variability LMC X-1
2011/10/21
We present the results of a long-term observation campaign of the extragalactic wind-accreting black-hole X-ray binary LMC X-1, using the Proportional Counter Array on the Rossi X-Ray Timing Explorer ...
Plants cause ecosystem nutrient depletion via the interruption of bird-derived spatial subsidies
depletion via bird-derived spatial subsidies
2015/11/13
Plant introductions and subsequent community shifts are known
to affect nutrient cycling, but most such studies have focused on
nutrient enrichment effects. The nature of plant-driven nutrient
depl...
Identification of the major cause of endemically poor mobilities in SiC/SiO2 structures
Identification of the major endemically poor mobilities
2010/11/22
Materials with good carrier mobilities are desired for device applications, but in real devices the mobilities are usually limited by the presence of interfaces and contacts. Mobility degradation at s...
Analysis of warm standby systems subject to common-cause failures with time varying failure and repair rates
k-out-of-( M+S) G system, time varying failure and repair rates
2010/9/13
This paper presents reliability and availability analysis of a k-out-of-(M+S): G warm standby system with time varying failure and repair rates in presence of commoncause failure. The system composed ...
A University of Queensland researcher is part of a national project which has received $1 million funding to discover the proteins that cause multiple sclerosis (MS). Dr Judith Greer, a senior researc...
Darwin and His Sacred Cause
Darwin Sacred Cause
2009/8/21
The year 2009 marks the 200th anniversary of the birth of Charles Darwin and the 150th anniversary of the publication of his Origin of Species. Similarly and more significantly, this year also offers ...