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How do birds breathe so efficiently? Looped airways facilitate air flows(图)
birds breathe efficiently Looped airways facilitate air flows
2021/4/9
Birds breathe with greater efficiency than humans because of the structure of their lungs --looped airways that facilitate air flows that go in one direction -- a team of researchers has found. The re...
How'd we get so choosy about friendships late in life? Ask the chimps(图)
choosy friendships late in life chimps
2020/10/30
When humans age, we tend to favor small circles of meaningful, already established friendships rather than seeking new ones. People are also more likely to lean toward positive relationships rather th...
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...
Upending an evolutionary theory proposed in the 1950s, scientists have found that the groups of animals most resistant to extinction also contain the greatest ecological diversity –- their members per...
Researchers find new reason why Arctic is warming so fast(图)
new reason Arctic warming so fast
2020/2/28
The Arctic has experienced the warming effects of global climate change faster than any other region on the planet. Scientists at the Scripps Institution of Oceanography have developed a new theory ai...
For three hurricane seasons in a row, storms with record-breaking rainfall have caused catastrophic flooding in the southern United States: Harvey in 2017, Florence in 2018 and Imelda in 2019.A new NS...
America has invested enormous treasure, exerted extraordinary effort and sent many of its best, brightest, and most courageous to combat terrorism in the past 17-plus years since 9/11.1 As we pass ano...
受海洋科学学院、大洋渔业可持续开发教育部重点实验室极地海洋生态系统实验室和中澳海洋合作研究中心的邀请,澳大利亚南极局海洋生态学家、我校客座教授兼博士生导师川口创(So Kawaguchi)博士于2019年4月7日至13日期间访问我校,为研究生讲授了前沿讲座课程,并参与本科生授课。这已是他连续第5年为我校学生授课。川口创(So Kawaguchi)从南极磷虾生物学与生态学、实验生物学、气候变化对南极...
Tightly SIM-SO-CCA Secure Public Key Encryption from Standard Assumptions
selective opening public-key cryptography SIM-SO-CCA
2018/1/11
Selective opening security (SO security) is desirable for public key encryption (PKE) in a multi-user setting. {In a selective opening attack, an adversary receives a number of ciphertexts for possibl...
2017年11月21日-24日,HXI/ASO-S和STIX/SO联合讨论会暨HXI国际咨询会在中国科学院紫金山天文台南京仙林新园区召开。RHESSI卫星首席科学家及STIX/SO首席科学家Sam Krucker教授、RHESSI卫星及STIX/SO成像系统主要设计者Gordon Hurford博士、STIX/SO仪器项目经理Stefan Koegl博士,以及来自中科院国家空间科学中心、上海微小卫...
Changes in non-extreme precipitation may have not-so-subtle consequences(图)
non-extreme precipitation not-so-subtle consequences
2017/9/20
Find related stories on NSF's Critical Zone Observatories site.Extreme floods and droughts receive a lot of attention. But what happens when precipitation -- or lack thereof -- occurs in a more measur...
UT Austin Study Raises Question: Why are Fossilized Hairs so Rare?(图)
UT Austin Fossilized Hairs so Rare
2017/9/20
When most people hear the word fossil, they probably think of gigantic leg bones or sharp teeth. But, given the right conditions, after an animal dies even delicate body coverings like skin, hair and ...
Through analysis of volcanic tracks, Rice University geophysicists have concluded that hot spots like those that formed the Hawaiian Islands aren’t moving as fast as recently thought.Hot spots are are...
It has long been viewed that the analysis of sodium excretion in a morning “spot” urine sample is a valuable measure to estimate salt intake of the previous day. A study in this issue of the Journal s...