Results 91 to 100 of about 3,394,545 (251)

The Relationship Between Molecular Gas Tracers and Kennicutt-Schmidt Laws

open access: yes, 2007
We provide a model for how Kennicutt-Schmidt (KS) laws, which describe the correlation between star formation rate and gas surface or volume density, depend on the molecular line chosen to trace the gas. We show that, for lines that can be excited at low
Komugi S.   +6 more
core   +1 more source

3D LTE spectral line formation with scattering in red giant stars [PDF]

open access: yes, 2011
We investigate the effects of coherent isotropic continuum scattering on the formation of spectral lines in local thermodynamic equilibrium (LTE) using 3D hydrodynamical and 1D hydrostatic model atmospheres of red giant stars.
Allen de Prieto   +56 more
core   +2 more sources

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho   +7 more
wiley   +1 more source

The Influence of Dust Formation Modelling on Na I and K I Line Profiles in Substellar Atmospheres

open access: yes, 2008
We aim to understand the correlation between cloud formation and alkali line formation in substellar atmospheres.We perform line profile calculations for Na I and K I based on the coupling of our kinetic model for the formation and composition of dust ...
Burgasser A. J.   +10 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

ZIMPOL detects scattering polarization in He I D3 during a solar flare

open access: yesAstronomy & Astrophysics
Context. Spectropolarimetric observations of solar flares in the He I D3 line at 5876 Å are extremely rare, and their diagnostic potential remains largely unexplored. Aims.
Vitali Francesco   +7 more
doaj   +1 more source

X-ray line formation in the spectrum of SS 433

open access: yes, 2012
The mechanisms for the formation of X-ray lines in the spectrum of SS 433 are investigated by taking into account the radiative transfer inside the jets. The results of Monte Carlo numerical simulations are presented.
A. M. Cherepashchuk   +30 more
core   +1 more source

Helium line formation and abundance during a C-class flare [PDF]

open access: yes, 2008
During a coordinated campaign which took place in May 2001, a C-class flare was observed both with SOHO instruments and with the Dunn Solar Telescope of the National Solar Observatory at Sacramento Peak.
Ambretta Falchi   +6 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Influence of line isolation overlappings on formation of lightning overvoltages [PDF]

open access: yesVestnik MGTU, 2015
The model of substation protection against lightning waves with considered multiple overlappings of line isolation has been presented. Influence of multiple overlapping of isolation on line support on formation of lightning overvoltages has been shown ...
Antropov I. M.   +2 more
doaj  

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