Results 101 to 110 of about 1,168,780 (297)

Does turbulence determine the initial mass function?

, 2016
We test the hypothesis that the initial mass function (IMF) is determined by the density probability distribution function (PDF) produced by supersonic turbulence.
D Liptai (7810322), MR Bate (21849113), DJ Price (7795871), J Wurster (7810304)   +3 more
core  

Stellar Initial Mass Function: Trends with Galaxy Mass and Radius [PDF]

, 2017
There is currently no consensus about the exact shape and, in particular, the universality of the stellar initial mass function (IMF). For massive galaxies, it has been found that near-infrared (NIR) absorption features, which are sensitive to the ratio ...
Parikh, Taniya
core   +1 more source

The Initial Mass Function of Stars

, 2006
Observations and theory of the IMF are briefly reviewed. Slight variations have been observed, although they are difficult to prove unambiguously. Most detailed theoretical models reproduce the IMF, but because they use different assumptions and conditions, there is no real convergence of explanations yet.
openaire   +2 more sources

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source

Direct Evidence for Stellar Initial Mass Function Variation in the Milky Way

The Astrophysical Journal Letters
Because direct measurements require resolved stellar populations, including low-mass stars, determining the stellar initial mass function (IMF) has been a historically difficult problem even within our own Galaxy, and impossible everywhere else.
Charles L. Steinhardt, Carter Meyerhoff, Alexander J. Luening   +2 more
doaj   +1 more source

The role of molecular filaments in the origin of the prestellar core mass function and stellar initial mass function [PDF]

, 2019
International audienceContext. The origin of the stellar initial mass function (IMF) is one of the most debated issues in astrophysics.Aims. Here we explore the possible link between the quasi-universal filamentary structure of star-forming molecular ...
Könyves, V., Shimajiri, Y., Konyves, Vera, Palmeirim, P., D. Arzoumanian, V. Könyves, Y. Shimajiri, André, Ph., Ph. André, Arzoumanian, D., P. Palmeirim   +10 more
core   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

Gauging the Impact of Cosmic-ray Feedback on the Stellar Initial Mass Function

The Astrophysical Journal
Cosmic rays (CRs) drive ionization and influence gas dynamics in molecular clouds (MCs), potentially impacting the resulting star formation outcomes. Although previous simulations of individual star formation have included methods for CR transport (CRT),
Margot Fitz Axen, Stella Offner, Philip F. Hopkins, Michael Y. Grudić   +3 more
doaj   +1 more source

Inversely synthesizing the core mass function of high-mass star-forming regions from the canonical initial mass function

Many studies have revealed that the core mass function (CMF) in high-mass star-forming regions is top-heavy. In this work, we start from the canonical initial mass function (IMF) to inversely synthesize the observed CMFs of high-mass star formation ...
Sami Dib, Pavel Kroupa, J. W. Zhou
core   +1 more source