Abstract:
:Pressure is a key parameter in the physics and chemistry of planet formation and evolution. Previous studies have erroneously assumed that internal pressures monotonically increase with the mass of a body. Using smoothed particle hydrodynamics and potential field method calculations, we demonstrate that the hot, rapidly rotating bodies produced by giant impacts can have much lower internal pressures than cool, slowly rotating planets of the same mass. Pressures subsequently increase because of thermal and rotational evolution of the body. Using the Moon-forming impact as an example, we show that the internal pressures after the collision could have been less than half that in present-day Earth. The current pressure profile was not established until Earth cooled and the Moon receded, a process that may take up to tens of millions of years. Our work defines a new paradigm for pressure evolution during accretion of terrestrial planets: stochastic changes driven by impacts.
journal_name
Sci Advjournal_title
Science advancesauthors
Lock SJ,Stewart STdoi
10.1126/sciadv.aav3746subject
Has Abstractpub_date
2019-09-04 00:00:00pages
eaav3746issue
9issn
2375-2548pii
aav3746journal_volume
5pub_type
杂志文章相关文献
Science Advances文献大全abstract::Quantum phenomena have the potential to speed up the solution of hard optimization problems. For example, quantum annealing, based on the quantum tunneling effect, has recently been shown to scale exponentially better with system size than classical simulated annealing. However, current realizations of quantum anneale...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1602273
更新日期:2017-04-07 00:00:00
abstract::The cellular and the molecular mechanisms by which long noncoding RNAs (lncRNAs) may regulate presynaptic function and neuronal activity are largely unexplored. Here, we established an integrated screening strategy to discover lncRNAs implicated in neurotransmitter and synaptic vesicle release. With this approach, we ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aay2670
更新日期:2019-12-18 00:00:00
abstract::Difunctionalization of alkenes is a valuable and versatile chemical transformation that could quickly build complex molecules. Extensive efforts have been made, and great achievement, such as Sharpless aminohydroxylation and dihydroxylation, has been reached. However, in marked contrast to the extensive research of am...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aat5312
更新日期:2018-08-03 00:00:00
abstract::Polyphosphate, an energy-rich polymer conserved in all kingdoms of life, is integral to many cellular stress responses, including nutrient deprivation, and yet, the mechanisms that underlie its biological roles are not well understood. In this work, we elucidate the physiological function of this polymer in the acclim...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abb5351
更新日期:2020-09-30 00:00:00
abstract::We investigate the emergence of global alignment in colonies of dividing rod-shaped cells under confinement. Using molecular dynamics simulations and continuous modeling, we demonstrate that geometrical anisotropies in the confining environment give rise to an imbalance in the normal stresses, which, in turn, drives a...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abc8685
更新日期:2021-01-22 00:00:00
abstract::Fluctuations in biodiversity, large and small, pervade the fossil record, yet we do not understand the processes generating them. Here, we extend theory from nonequilibrium statistical physics to describe the fat-tailed form of fluctuations in Phanerozoic marine invertebrate richness. Using this theory, known as super...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aat0122
更新日期:2019-06-26 00:00:00
abstract::The prominent size effect of metal nanoparticles shapes decisively nanocatalysis, but entanglement of the corresponding geometric and electronic effects prevents exploiting their distinct functionalities. In this work, we demonstrate that in palladium (Pd)-catalyzed aerobic oxidation of benzyl alcohol, the geometric a...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aat6413
更新日期:2019-01-18 00:00:00
abstract::Dynamic modulation of soft helix in terms of the molecular organization, handedness, and pitch length could result in a sophisticated control over its functions, opening numerous possibilities toward the exploration of previously unidentified applications. Here, we report a dynamic and reversible transformation of a s...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aax9501
更新日期:2019-10-04 00:00:00
abstract::Viscosity of fluids is strongly system dependent, varies across many orders of magnitude, and depends on molecular interactions and structure in a complex way not amenable to first-principles theories. Despite the variations and theoretical difficulties, we find a new quantity setting the minimal kinematic viscosity o...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba3747
更新日期:2020-04-24 00:00:00
abstract::Species interactions have long been predicted to increase in intensity toward the tropics and low elevations because of gradients in climate, productivity, or biodiversity. Despite their importance for understanding global ecological and evolutionary processes, plant-animal interaction gradients are particularly diffi...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aau4403
更新日期:2019-02-20 00:00:00
abstract::Band structure theory plays an essential role in exploring physics in both solid-state systems and photonics. Here, we demonstrate a direct experimental measurement of the dynamic band structure in a synthetic space including the frequency axis of light, realized in a ring resonator under near-resonant dynamic modulat...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.abe4335
更新日期:2021-01-08 00:00:00
abstract::Forest loss is one of the most pervasive land surface transformations on Earth, with drastic effects on global climate, ecosystems, and human well-being. As part of biodiversity conservation and climate change mitigation efforts, many countries, including China, have been implementing large-scale policies to conserve ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1500965
更新日期:2016-03-18 00:00:00
abstract::Neurodegeneration in mitochondrial disorders is considered irreversible because of limited metabolic plasticity in neurons, yet the cell-autonomous implications of mitochondrial dysfunction for neuronal metabolism in vivo are poorly understood. Here, we profiled the cell-specific proteome of Purkinje neurons undergoin...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba8271
更新日期:2020-08-28 00:00:00
abstract::Mass loss from the West Antarctic ice shelves and glaciers has been linked to basal melt by ocean heat flux. The Totten Ice Shelf in East Antarctica, which buttresses a marine-based ice sheet with a volume equivalent to at least 3.5 m of global sea-level rise, also experiences rapid basal melt, but the role of ocean f...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601610
更新日期:2016-12-16 00:00:00
abstract::V1-ATPase is an ATP-driven rotary motor that is composed of a ring-shaped A3B3 complex and a central DF shaft. The nucleotide-free A3B3 complex of Enterococcus hirae, composed of three identical A1B1 heterodimers, showed a unique asymmetrical structure, probably due to the strong binding of the N-terminal barrel domai...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aau8149
更新日期:2019-01-30 00:00:00
abstract::Analog machine learning hardware platforms promise to be faster and more energy efficient than their digital counterparts. Wave physics, as found in acoustics and optics, is a natural candidate for building analog processors for time-varying signals. Here, we identify a mapping between the dynamics of wave physics and...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aay6946
更新日期:2019-12-20 00:00:00
abstract::Bioacoustic networks could vastly expand the coverage of wildlife monitoring to complement satellite observations of climate and vegetation. This approach would enable global-scale understanding of how climate change influences phenomena such as migratory timing of avian species. The enormous data sets that autonomous...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaq1084
更新日期:2018-06-20 00:00:00
abstract::Posthemorrhagic hydrocephalus (PHH) in premature infants is a common neurological disorder treated with invasive neurosurgical interventions. Patients with PHH lack effective therapeutic interventions and suffer chronic comorbidities. Here, we report a murine lysophosphatidic acid (LPA)-induced postnatal PHH model tha...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aax2011
更新日期:2019-10-09 00:00:00
abstract::Capabilities for assembly of three-dimensional (3D) micro/nanostructures in advanced materials have important implications across a broad range of application areas, reaching nearly every class of microsystem technology. Approaches that rely on the controlled, compressive buckling of 2D precursors are promising becaus...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601014
更新日期:2016-09-23 00:00:00
abstract::The social bond between parents and offspring is characterized by coadaptation and balance between altruistic and selfish tendencies. However, its underlying genetic mechanism remains poorly understood. Using transcriptomic screens in the subsocial European earwig, Forficula auricularia, we found the expression of mor...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw0070
更新日期:2020-01-03 00:00:00
abstract::Ewing sarcoma (EwS) is an aggressive tumor that affects adolescents and young adults. EwS is defined by a chromosomal translocation, EWSR1-FLI1 being the most common, that causes genome reprogramming through remodeling of enhancers. Here, we describe an unexpected function of RING1B, which is highly expressed in EwS. ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba3058
更新日期:2020-10-23 00:00:00
abstract::A sulfide-oxidizing microorganism, Desulfurivibrio alkaliphilus (DA), generates a consistent enrichment of sulfur-34 (34S) in the produced sulfate of +12.5 per mil or greater. This observation challenges the general consensus that the microbial oxidation of sulfide does not result in large 34S enrichments and suggests...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw1480
更新日期:2019-07-24 00:00:00
abstract::Coordinatively unsaturated (CUS) iron sites are highly active in catalytic oxidation reactions; however, maintaining the CUS structure of iron during heterogeneous catalytic reactions is a great challenge. Here, we report a strategy to stabilize single-atom CUS iron sites by embedding highly dispersed FeN4 centers in ...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1500462
更新日期:2015-12-04 00:00:00
abstract::Fluid commonly flows in response to an external pressure gradient. However, when a tunnel-containing hydrogel is immersed in water, spontaneous flow occurs through the tunnel without any pressure gradient. We confirmed this flow in a wide range of plant- and animal-derived hydrogels. The flow appears to be driven by a...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba0941
更新日期:2020-05-08 00:00:00
abstract::This study introduces new methods of screening for and tuning chiral space and in so doing identifies a promising set of chiral ligands for asymmetric synthesis. The carbafructopyranosyl-1,2-diamine(s) and salens constructed therefrom are particularly compelling. It is shown that by removing the native anomeric effect...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1500066
更新日期:2015-07-01 00:00:00
abstract::The Paris Agreement aims to mitigate the potential impacts of climate change on ecological and social systems. Using an ensemble of climate-marine ecosystem and economic models, we explore the effects of implementing the Agreement on fish, fishers, and seafood consumers worldwide. We find that implementing the Agreeme...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aau3855
更新日期:2019-02-27 00:00:00
abstract::B cell activation is regulated by the stimulatory or inhibitory co-receptors of B cell receptors (BCRs). Here, we investigated the signaling mechanism of Fc receptor-like 1 (FcRL1), a newly identified BCR co-receptor. FcRL1 was passively recruited into B cell immunological synapses upon BCR engagement in the absence o...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aaw0315
更新日期:2019-07-17 00:00:00
abstract::Using theory and experiments, we study the interface between two immiscible domains in a colloidal membrane composed of rigid rods of different lengths. Geometric considerations of rigid rod packing imply that a domain of sufficiently short rods in a background membrane of long rods is more susceptible to twist than t...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.aba2331
更新日期:2020-07-29 00:00:00
abstract::The structure of many real-world systems is best captured by networks consisting of several interaction layers. Understanding how a multilayered structure of connections affects the synchronization properties of dynamical systems evolving on top of it is a highly relevant endeavor in mathematics and physics and has po...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601679
更新日期:2016-11-16 00:00:00
abstract::Human sleep is highly regulated by temperature. Might climate change-through increases in nighttime heat-disrupt sleep in the future? We conduct the inaugural investigation of the relationship between climatic anomalies, reports of insufficient sleep, and projected climate change. Using data from 765,000 U.S. survey r...
journal_title:Science advances
pub_type: 杂志文章
doi:10.1126/sciadv.1601555
更新日期:2017-05-26 00:00:00