Results 71 to 80 of about 351,916 (340)

The approach to collapse of molecular clouds [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
The dense molecular cloud cores that form stars, like other self-gravitating objects, undergo bulk oscillations. Just at the point of gravitational instability, their fundamental oscillation mode has zero frequency. We study, using perturbation theory, the evolution of a spherical cloud that possesses such a frozen mode.
Jeffrey J. Yen, Steven W. Stahler
openaire   +3 more sources

Fast Molecular Cloud Destruction Requires Fast Cloud Formation

, 2017
A large fraction of the gas in the Galaxy is cold, dense, and molecular. If all this gas collapsed under the influence of gravity and formed stars in a local free-fall time, the star formation rate in the Galaxy would exceed that observed by more than an
Burkert, Andreas, Ibáñez-Mejía, Juan C., Mac Low, Mordecai-Mark   +2 more
core   +1 more source

Analysis of comprehensive genomic profiling of solid tumors with a novel assay for broad analysis in clinical diagnostics

Molecular Oncology, EarlyView.
In molecular cancer diagnostics, comprehensive genomic profiling (CGP) is going to replace the small NGS panels since it provides all clinically relevant somatic variants as well as genomic biomarkers with clinical value. Here, we compared two CGP assays and demonstrate that the choice for diagnostic implementation will depend on the specific ...
Guy Froyen, Pieter‐Jan Volders, Ellen Geerdens, Severine Berden, Joni Van der Meulen, Aaron De Cock, Stefanie Vermeire, Jacques Van Huysse, Marie de Barsy, Gabriela Beniuga, Wendy W. J. de Leng, Anne M. L. Jansen, Imke Demers, Zeliha Ozgur, Hendrikus Jan Dubbink, Ernst‐Jan M. Speel, Wilfred F. J. van IJcken, Brigitte Maes   +17 more
wiley   +1 more source

Distances to Nearby Molecular Clouds Traced by Young Stars

The Astrophysical Journal Supplement Series, 2023
I present a catalog of distances to 63 molecular clouds located within ∼2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO candidates (YSOCs) with
Miaomiao Zhang
doaj   +1 more source

Turbulence decay and cloud core relaxation in molecular clouds [PDF]

, 2014
The turbulent motion within molecular clouds is a key factor controlling star formation. Turbulence supports molecular cloud cores from evolving to gravitational collapse and hence sets a lower bound on the size of molecular cloud cores in which star formation can occur.
arxiv   +1 more source

The W51 Giant Molecular Cloud [PDF]

, 1998
We present 45"-47" angular resolution maps at 50" sampling of the 12CO and 13CO J=1-0 emission toward a 1.39 deg x 1.33 deg region in the W51 HII region complex. These data permit the spatial and kinematic separation of several spectral features observed
Arnal E. M., Bachiller R., Brand J., Burton W. B., Comeron F., D. B. Sanders, Erickson N. R., Genzel R., Georgelin T. M., Goss W. M., John M. Carpenter, Kundu N. R., Meynet G., Nakamura T., Ohishi M., Oldham P. G., Pankonin V., Shane W. W., Sievers A. W., Strong A. W., Subrahmanyan R., Westerhout G., Wilson T. L.   +22 more
core   +3 more sources

NPC1 promotes the progression of hepatocellular carcinoma by mediating the accumulation of neutrophils into the tumor microenvironment

FEBS Open Bio, EarlyView.
Compared to normal tissues, NPC1 expression is significantly elevated in hepatocellular carcinoma tissues. Our findings indicate that NPC1 plays a key role in regulating neutrophil recruitment within the tumor, which is a critical factor in the progression of hepatocellular carcinoma and is closely linked to poor patient outcomes.
Songhai Yang, Jiangming Chen, Kun Xie, Fubao Liu   +3 more
wiley   +1 more source

Beyond digital twins: the role of foundation models in enhancing the interpretability of multiomics modalities in precision medicine

FEBS Open Bio, EarlyView.
This review highlights how foundation models enhance predictive healthcare by integrating advanced digital twin modeling with multiomics and biomedical data. This approach supports disease management, risk assessment, and personalized medicine, with the goal of optimizing health outcomes through adaptive, interpretable digital simulations, accessible ...
Sakhaa Alsaedi, Xin Gao, Takashi Gojobori   +2 more
wiley   +1 more source

A study of X-ray point sources in Heiles Clouds 1 and 2

Acta Polytechnica
Star formation takes place in the coldest parts of molecular clouds, beginning in the densest, collapsing regions of filaments. As pre-main sequence stars are luminous X-ray emitters, X-ray point sources can serve as effective tracers of YSOs.
Nóra Varga, András Péter Joó, Bendegúz Koncz   +2 more
doaj   +1 more source

Hierarchical structure of the interstellar molecular clouds and star formation

Open Astronomy, 2017
Properties of the hierarchical structures of interstellar molecular clouds are discussed. Particular attention is paid to the statistical correlations between velocity dispersion and size, and between the magnetic field strength and gas density.
Dudorov Alexander E., Khaibrakhmanov Sergey A.   +1 more
doaj   +1 more source