Results 101 to 110 of about 41,072 (339)

Dynamical evolution of stellar clusters

, 2011
The evolution of star clusters is determined by several internal and external processes. Here we focus on two dominant internal effects, namely energy exchange between stars through close encounters (two-body relaxation) and mass-loss of the member stars
Gieles, Mark
core  

Associations between quasi-stellar objects and galaxies

The Astrophysical Journal Supplement Series, 1990
A table is presented here listing all close pairs of QSOs and galaxies that were found in a computer-aided search of catalogs of QSOs and bright galaxies and an extensive search of the literature. There is a large excess of pairs with separations of 2 arcmin or less, or about 60 kpc, over the numbers expected if the configurations were accidental.
G. Burbidge, A. Hewitt, J. V. Narlikar, P. Das Gupta   +3 more
openaire   +1 more source

Fetal Brain Tumor Harboring a Unique ROCK1::BRAF Fusion

Pediatric Blood &Cancer, EarlyView.
Marllon Cindra Sant'Ana, Mariana Maschietto, Daniela Paz Leal, Ricardo de Santos de Oliveira, Mayara Ferreira Euzébio, Antonio Carlos dos Santos, Luciano Neder, Carlos Alberto Scrideli, Elvis Terci Valera   +8 more
wiley   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

X-ray Emission near the Substellar Limit: The sigma Orionis and Taurus Star Forming Regions

, 2002
We have carried out an extensive search for X-ray emission from young, very low-mass objects near and beyond the substellar limit, making use of archived ROSAT PSPC and HRI observations pointed at Brown Dwarfs and Brown Dwarf candidates in the young ...
B. Stelzer, Barrado y Navascues, Basri, Béjar, Béjar, Comerón, Cruddace, Elias, F. Mokler, Feigelson, Fleming, Garmire, Gizis, Imanishi, Joergens, Kenyon, Lee, Leggett, Martín, Martín, Muench, Natta, Neuhäuser, Neuhäuser, Neuhäuser, Neuhäuser, Preibisch, Preibisch, Preibisch, Reid, Rutledge, Stelzer, Walter, Wilking, Zapatero Osorio, Zapatero Osorio   +35 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

SPYGLASS. VI. Feedback-driven Star Formation in the Circinus Complex

The Astrophysical Journal
Young associations provide a record that traces the star formation process, and the youngest populations connect progenitor gas dynamics to the resulting stellar populations.
Ronan Kerr, Juan P. Farias, Lisa Prato, Travis A. Rector, Joshua S. Speagle, Adam L. Kraus   +5 more
doaj   +1 more source

Toward Understanding Massive Star Formation

, 2007
Although fundamental for astrophysics, the processes that produce massive stars are not well understood. Large distances, high extinction, and short timescales of critical evolutionary phases make observations of these processes challenging. Lacking good
Allen C, Appenzeller I, Barrado y Navascués D, Bastian N, Bate MR, Blaauw A, Blaauw A, Bodenheimer P, Bronfman L, Cassinelli JP, Cesaroni R, Cesaroni R, de Geus EJ, Elmegreen BG, Feitzinger JV, Ferreira J, Gueth F, Hans Zinnecker, Harold W. Yorke, Henning T, Hofmann K-H, Kahn FD, Kippenhahn R, Knödlseder J, Larson RB, Mannings I, Meynet G, Norberg P, Pehlemann E, Perault M, Poetzel R, Poveda A, Preibisch T, Reipurth B, Reipurth B, Richling S, Sandage A, Schaerer D, Schweickhardt J, Shu FH, Smith LF, Smith N, Smith N, Stahl O, Taresch G, Testi L, Testi L, van Albada TS, van Bever J, Weigelt G, Yorke HW, Yorke HW, Zinnecker H, Zinnecker H, Zinnecker H, Öpik EJ   +55 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

A Radio-loud Semiregular Variable

The Astrophysical Journal
As a byproduct of our search for Galactic stellar systems with gamma-ray emission, we have identified an unrelated cool and evolved star (IRC-10412) that attracted our attention due to its strong radio emission level with a spectral index matching ...
Pedro L. Luque-Escamilla, Josep Martí
doaj   +1 more source