Results 91 to 100 of about 387,146 (299)

Atmospheric signatures of giant exoplanet formation by pebble accretion [PDF]

, 2016
Atmospheric chemical abundances of giant planets lead to important constraints on planetary formation and migration. Studies have shown that giant planets that migrate through the protoplanetary disk can accrete substantial amounts of oxygen-rich ...
N. Madhusudhan, B. Bitsch, A. Johansen, L.E.J. Eriksson   +3 more
semanticscholar   +1 more source

Immunoregulatory mechanisms of the arachidonic acid pathway in cancer

FEBS Letters, EarlyView.
The central role of the arachidonic acid (AA) pathway in anticancer immunity. Enzymes and metabolites of the AA pathway can play both immunosuppressive and immunostimulatory roles in the tumor microenvironment. Therefore, their tailored targeting could be beneficial as a standalone therapy or in combination with current cancer immunotherapy.
Maria Tredicine, Matteo Mucci, Antonio Recchiuti, Domenico Mattoscio   +3 more
wiley   +1 more source

Induced Gravitational Collapse, Binary-Driven Hypernovae, Long Gramma-ray Bursts and Their Connection with Short Gamma-ray Bursts

Universe, 2019
There is increasing observational evidence that short and long Gamma-ray bursts (GRBs) originate in different subclasses, each one with specific energy release, spectra, duration, etc, and all of them with binary progenitors.
J. A. Rueda, R. Ruffini, Y. Wang
doaj   +1 more source

Fires, floods and other extreme events – How watershed processes under climate change will shape our coastlines

Cambridge Prisms: Coastal Futures, 2023
Ongoing sea-level rise has brought renewed focus on terrestrial sediment supply to the coast because of its strong influence on whether and how long beaches, marshes and other coastal landforms may persist into the future.
Jonathan A. Warrick, Amy E. East, Helen Dow   +2 more
doaj   +1 more source

The slimming effect of advection on black-hole accretion flows

, 2016
At super-Eddington rates accretion flows onto black holes have been described as slim (aspect ratio $H/R \lesssim 1$) or thick (H/R >1) discs, also known as tori or (Polish) doughnuts. The relation between the two descriptions has never been established,
Abramowicz, M. A., Lasota, J. -P., Narayan, R., Sadowski, A., Vieira, R. S. S.   +4 more
core   +2 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

FEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

A study of evoloutionary self-gravitating plytropic β -viscous accretion disks with troidal magnetic field

Iranian Journal of Physics Research, 2011
In this paper,the effect of troidal magnetic field is studied in standard self-gravitating thin disks with β priscription. By applying the magnetic field, we expect to see different behaviors compared to a non-magnetic field case.The study reveals self ...
N Jami al ahmadi, SH Abbassi, J Ghanbari
doaj  

Evidence for a correlation between mass accretion rates onto young stars and the mass of their protoplanetary disks [PDF]

, 2016
A relation between the mass accretion rate onto the central young star and the mass of the surrounding protoplanetary disk has long been theoretically predicted and observationally sought.
C. Manara, G. Rosotti, L. Testi, L. Testi, A. Natta, A. Natta, J. Alcalá, Jonathan P. Williams, M. Ansdell, A. Miotello, N. Marel, M. Tazzari, J. Carpenter, G. Guidi, G. Mathews, I. Oliveira, T. Prusti, E. Dishoeck   +17 more
semanticscholar   +1 more source

Unraveling Mycobacterium tuberculosis acid resistance and pH homeostasis mechanisms

FEBS Letters, EarlyView.
Mycobacterium tuberculosis exhibits a remarkable resilience to acid stress. In this Review, we discuss some of the molecular mechanisms and metabolic pathways used by the tubercle bacilli to adapt and resist host‐mediated acid stress. Mycobacterium tuberculosis (Mtb) is a successful pathogen that has developed a variety of strategies to survive and ...
Janïs Laudouze, Stéphane Canaan, Alexandre Gouzy, Pierre Santucci   +3 more
wiley   +1 more source

The Effects of Accretion Luminosity upon Fragmentation in the Early Universe

, 2011
We introduce a prescription for the luminosity from accreting protostars into smoothed particle hydrodynamics simulation, and apply the method to simulations of five primordial minihalos generated from cosmological initial conditions.
Abel, Abel, Abel, Alvarez, Bate, Bate, Bate, Chabrier, Clark, Clark, Dalgarno, Federrath, Freese, Fryer, Galli, Glover, Glover, Glover, Glover, Heger, Hosokawa, Jappsen, Johnson, Kitayama, Kitsionas, Kroupa, Krumholz, Lodato, Machida, Mayer, McGreer, Nelson, Omukai, Omukai, Omukai, Omukai, Paul C. Clark, Peters, Peters, Peters, Pringle, Ralf S. Klessen, Reipurth, Ripamonti, Ripamonti, Ripamonti, Rowan J. Smith, Simon C. O. Glover, Sokasian, Spolyar, Spolyar, Springel, Springel, Stacy, Stahler, Tan, Thomas Greif, Turk, Turk, Whalen, Yoshida, Yoshida, Yoshida   +62 more
core   +1 more source