Results 41 to 50 of about 166,554 (139)

Quantification of regional net CO2 flux errors in the Orbiting Carbon Observatory-2 (OCO-2) v10 model intercomparison project (MIP) ensemble using airborne measurements [PDF]

open access: yesAtmospheric Chemistry and Physics
Inverse model intercomparison projects (MIPs) provide a chance to assess the uncertainties in inversion estimates arising from various sources. However, accurately quantifying ensemble CO2 flux errors remains challenging and often relies on the ensemble ...
J. Yun   +10 more
doaj   +1 more source

First preliminary tests of the general relativistic gravitomagnetic field of the Sun and new constraints on a Yukawa-like fifth force from planetary data

open access: yes, 2007
The general relativistic Lense-Thirring precessions of the perihelia of the inner planets of the Solar System are about 10^-3 arcseconds per century. Recent improvements in planetary orbit determination may yield the first observational evidence of such ...
Adelberger   +54 more
core   +1 more source

Genome-wide RNAi Screen for Fat Regulatory Genes in C. elegans Identifies a Proteostasis-AMPK Axis Critical for Starvation Survival

open access: yesCell Reports, 2017
Organisms must execute metabolic defenses to survive nutrient deprivation. We performed a genome-wide RNAi screen in Caenorhabditis elegans to identify fat regulatory genes indispensable for starvation resistance. Here, we show that opposing proteostasis
Christopher M. Webster   +8 more
doaj   +1 more source

Binary Asteroid Encounters with Terrestrial Planets: Timescales and Effects

open access: yes, 2011
Many asteroids that make close encounters with terrestrial planets are in a binary configuration. Here we calculate the relevant encounter timescales and investigate the effects of encounters on a binary's mutual orbit. We use a combination of analytical
Benner   +13 more
core   +2 more sources

Pathfinder experiments with atom interferometry in the Cold Atom Lab onboard the International Space Station

open access: yesNature Communications
Deployment of ultracold atom interferometers (AI) into space will capitalize on quantum advantages and the extended freefall of persistent microgravity to provide high-precision measurement capabilities for gravitational, Earth, and planetary sciences ...
Jason R. Williams   +28 more
doaj   +1 more source

Effect of Re-impacting Debris on the Solidification of the Lunar Magma Ocean

open access: yes, 2018
Anorthosites that comprise the bulk of the lunar crust are believed to have formed during solidification of a Lunar Magma Ocean (LMO) in which these rocks would have floated to the surface.
Abe   +120 more
core   +1 more source

Resolving Orbital and Climate Keys of Earth and Extraterrestrial Environments with Dynamics 1.0: A General Circulation Model for Simulating the Climates of Rocky Planets

open access: yes, 2017
Resolving Orbital and Climate Keys of Earth and Extraterrestrial Environments with Dynamics (ROCKE-3D) is a 3-Dimensional General Circulation Model (GCM) developed at the NASA Goddard Institute for Space Studies for the modeling of atmospheres of Solar ...
Aleinov, Igor   +10 more
core   +1 more source

“You Carry Mother Earth Within You” (Thich Nhat Hahn). Re-discovering Our Earthbound Roots as a Way of Living in the Anthropocene

open access: yesPrzegląd Kulturoznawczy
One of the assumptions in posthumanities and ecological humanities is that homo sapiens is a part of a larger whole of a living system – the Earth,1 around which, and around which future, a global ...
Monika Sosnowska
doaj   +1 more source

Gravitomagnetism and gravitational waves

open access: yes, 2010
After extensively reviewing general relativistic gravitomagnetism, both historically and phenomenologically, we review in detail the so-called magnetic components of gravitational waves (GWs), which have to be taken into account in the context of the ...
Corda, Christian, Iorio, Lorenzo
core   +1 more source

Variations of organic functional chemistry in carbonaceous matter from the asteroid 162173 Ryugu

open access: yesNature Communications
Primordial carbon delivered to the early earth by asteroids and meteorites provided a diverse source of extraterrestrial organics from pre-existing simple organic compounds, complex solar-irradiated macromolecules, and macromolecules from extended ...
Bradley De Gregorio   +58 more
doaj   +1 more source

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