Results 131 to 140 of about 657,244 (303)

Mining cosmic dust from the blue ice lakes of Greenland [PDF]

open access: yes
Extraterrestrial material, most of which invisible settles to Earth's surface as dust particles smaller than a millimeter in size were investigated. Particles of 1/10 millimeter size fall at a rate of one/sq m/yr collection of extraterrestrial dust is ...
Brownlee, D. E.   +5 more
core   +1 more source

Cosmic acceleration in a dust only universe via energy-momentum powered gravity [PDF]

open access: yes, 2017
We propose a modified theory of gravitation constructed by the addition of the term $f(T_{\mu\nu}T^{\mu\nu})$ to the Einstein-Hilbert action, and elaborate a particular case $f(T_{\mu\nu}T^{\mu\nu})=\alpha(T_{\mu\nu}T^{\mu\nu})^{\eta}$, where $\alpha ...
Ozgur Akarsu, N. Katırcı, Suresh Kumar
semanticscholar   +1 more source

Genome‐Wide Screening in Haploid Stem Cells Reveals Synthetic Lethality Targeting MLH1 and TP53 Deficient Tumours

open access: yesCell Proliferation, EarlyView.
To identify genetic events that can lead to tumour death once either MLH1 or TP53 is mutated, a genome‐wide genetic screening was performed, uncovering a list of putative hits. Synthetic lethal interactions were validated either genetically or chemically by using small molecules that inhibit these genes either in vitro and in vivo.
Rivki Cashman   +12 more
wiley   +1 more source

Iron-Nickel Microparticles in the Sedimentary Rocks as Indicators of Cosmic Processes [PDF]

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2015
The microstructure, chemical and mineral composition of iron-nickel microparticles from the sedimentary deposits of the Peri-Caspian Depression were studied.
R.K. Sungatullin   +6 more
doaj  

Microanalytical study of some cosmic dust discovered in sea-floor sediments in China [PDF]

open access: yes
The study of cosmic dust can provide useful data in the investigation of the origin of the Earth and the evolution of celestial bodies. Three types of cosmic dust (ferriginous, siliceous, and glassy) were discovered in the seafloor sediments near China ...
Hanchang, P., Shijie, Z., Zhong, Y.
core   +1 more source

Beyond the Anthropocene: Construction of Human Agency within Lutheran Eco‐Theology

open access: yesDialog, EarlyView.
ABSTRACT For several decades, Lutheran theologians have wrestled with the issue of the climate crisis. This has resulted in a body of scholarship that utilizes Christological frameworks to articulate agential constructs. While recognizing such contributions as inherently valuable and highly significant, this article suggests that Lutheran eco ...
Hilla Lahtinen
wiley   +1 more source

JWST/NIRCam Paβ Narrowband Imaging Reveals Ordinary Dust Extinction for Hα Emitters within the Spiderweb Protocluster at z = 2.16

open access: yesThe Astrophysical Journal
We combine JWST/NIRCam and Subaru/MOIRCS dual Pa β +H α narrowband imaging to trace the dust attenuation and the star formation activities of a sample of 43 H α emitters at the core of one of the most massive and best-studied clusters in formation at the
Jose Manuel Pérez-Martínez   +9 more
doaj   +1 more source

Crystal Morphology of Antarctic Micrometeorites Based on Melting–Cooling Processes During Atmospheric Entry

open access: yesCrystals
Micrometeorites (MMs), which are cosmic dust grains ranging from 10 microns to 2 mm in size, can reach the Earth’s surface through collisions with asteroids or by fragmentation of comets in space. When MMs enter the atmosphere, they are heated to varying
Taki Sönmez, Namık Aysal
doaj   +1 more source

Report on opportunities and/or techniques for high-caliber experimental research (other) proposals for SSPEX [PDF]

open access: yes
Brief discriptions of the following 13 experiments are included: ultrahigh vacuum petrology facility; artificial comet free flyer; artificial comet (tethered); cosmic dust detector; cosmic dust collector; dust collection using tethered satellites ...
Corso, G.   +8 more
core   +1 more source

Statistical simulations of the dust foreground to cosmic microwave background polarization (Corrigendum)

open access: yesAstronomy & Astrophysics, 2017
The characterization of the dust polarization foreground to the Cosmic Microwave Background (CMB) is a necessary step towards the detection of the B-mode signal associated with primordial gravitational waves.
F. Vansyngel   +8 more
semanticscholar   +1 more source

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