搜索结果: 1-15 共查到“理学 lost”相关记录17条 . 查询时间(0.187 秒)
Up to 85 per cent of historical salmon habitat lost in Lower Fraser region
salmon habitat salmon production habitat protection
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2021/8/6
For perhaps the first time ever, researchers have mapped out the true extent of habitat loss for salmon in the Lower Fraser River, one of the most important spawning and rearing grounds for Pacific sa...
High-resolution ocean model looks at sea turtles' lost years（图）
High-resolution ocean model looks sea turtles lost years
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2021/3/26
A detailed global ocean model simulation by scientists at the National Center for Atmospheric Research and other institutions has given scientists insights into where baby sea turtles may go...
Lost and found: Geologists 'resurrect' missing tectonic plate（图）
Lost and found Geologists resurrect missing tectonic plate
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2020/10/30
The existence of a tectonic plate named Resurrection has long been a topic of debate among geologists, with some arguing it was never real. Others say it subducted -- moved sideways and downward -- in...
New study finds U.S. and Canada have lost more than 1 in 4 birds in past 50 years（图）
U.S. Canada lost birds past 50 years
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2019/10/18
Since 1970, bird populations in the U.S. and Canada have declined by 29%, or almost 3 billion birds, signaling a widespread ecological crisis, a study published in the journal Science reveals. The res...
Iconic California beaches have lost most of their biodiversity（图）
Iconic California beaches biodiversity
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2019/10/22
Dig a few inches into the sand on many beaches in Southern California -- historically home to some of the most biologically diverse sandy beaches in the world -- and you'll find them teeming with life...
Lost Continent Of Zealandia:Scientists Return From Expedition To Sunken Land（图）
Lost Continent Zealandia Scientists Expedition Sunken Land
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2017/10/24
After a nine-week voyage to study the lost, submerged continent of Zealandia in the South Pacific, a team of 32 scientists from 12 countries has arrived in Hobart, Tasmania, aboard the research vessel...
Lost ecosystem found buried in mud of southern California coastal waters
Lost ecosystem buried in mud southern California coastal waters
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2017/7/21
Paleontologists investigating the sea bed off the coast of southern California have discovered a lost ecosystem that for thousands of years had nurtured communities of scallops and shelled marine orga...
From the Mantle to Microbes: The Lost City Hydrothermal Field
Lost City Hydrothermal Field Microbes
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2015/7/28
For over two decades, explorers of the deep ocean have been enthralled by volcanically driven black smoker hydrothermal systems hosting organisms that live under some of the most extreme conditions on...
Paradigm Lost,Paradigm Found:The Black Sea-Black Shale Connection as Viewed from the Anoxic Basin Margin
Paradigm Lost Paradigm Found Black Sea-Black Shale Connection Anoxic Basin Margin
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2015/7/27
Uppermost Holocene (Unit 1) microlaminated sediments of the deep central Black Sea, which accumulate at ca. 0.02 cm/y, are a classic natural laboratory for exploring geochemical proxies used to identi...
The Lost City Hydrothermal Field Revisited
City chemistry
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2015/7/22
Since the initial discovery of the Lost City Hydrothermal Field in 2000, there have been significant advances in our understanding of the development and evolution of the field, its chemistry, and the...
Predicting successful long-term weight loss from short-term weight-loss outcomes: new insights from a dynamic energy balance model (the POUNDS Lost study)
dynamic model energy balance receiver operating characteristic weight loss mathematical model likelihood function regression
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2018/12/24
Background: Currently, early weight-loss predictions of long-term weight-loss success rely on fixed percent-weight-loss thresholds.
SN 2008jb: A "Lost" Core-Collapse Supernova in a Star-Forming Dwarf Galaxy at ~10 Mpc
SN 2008jb Core-Collapse Supernova Star-Forming Dwarf Galaxy
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2011/10/19
We present the discovery and follow-up observations of SN 2008jb, a core-collapse supernova in the dwarf irregular galaxy ESO 302-14 at 9.6 Mpc. This transient was missed by galaxy-targeted surveys an...
Is it possible to reveal the lost siblings of the Sun?
Galaxy solar neighborhood - stars kinematics and dynamics - Galaxy structure
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2010/11/12
We present the results of our numerical experiments on stellar scattering in the galactic
disc under the influence of the perturbed galactic gravitation field connected with the spiral
density waves...
Lost and found: The missing diabolical points in the Fe$_8$ molecular magnet
diabolical points Fe$_8$ molecular magnet
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2010/11/24
Certain diabolical points in the tunneling spectrum of the single-molecule magnet Fe8 were pre-
viously believed to be have been eliminated as a result of a weak fourth-order anisotropy. As shown by ...
Feature Review – Subantarctica: the Auckland Islands and Joan Druett’s Island of the lost
Shipwrecks subantarctic islands Auckland Island Robinsonade
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2009/12/4
The subantarctic is a little-known region with fluid boundaries. Its islands, once obscure and undesirable places, have conservation protection today for their distinctive plants and animals, spectacu...