Results 131 to 140 of about 1,168,780 (297)

Exploring NGC 2345: A Comprehensive Study of a Young Open Cluster through Photometric and Kinematic Analysis

The Astronomical Journal
We conducted a photometric and kinematic analysis of the young open cluster NGC 2345 using CCD UBV data from 2 m Himalayan Chandra Telescope, Gaia Data Release 3, Two Micron All-Sky Survey, and the Photometric All-Sky Survey data sets. We found 1732 most
Kuldeep Belwal, D. Bisht, Mohit Singh Bisht, Geeta Rangwal, Ashish Raj, Arvind K. Dattatrey, R. K. S. Yadav, B. C. Bhatt   +7 more
doaj   +1 more source

Investigating the Low-Mass Stellar Initial Mass Function in Draco

, 2016
University of Minnesota M.S. thesis. May 2016. Major: Astrophysics. Advisors: Evan Skillman, Dan Weisz. 1 computer file (PDF); vii, 41 pages.We present new analysis of the low-mass stellar initial mass function ($\sim0.4-0.8M_\odot$) in the Local Group ...
Sotoudeh, Seyed Soroush
core  

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source

Tails of Gravity: Persistence of Star Formation in the Central Molecular Zone

The Astrophysical Journal
We characterize star-forming gas in six molecular clouds (Sgr B1-off, Sgr B2, Sgr C, the 20 and 50 km s ^−1 molecular clouds, and the Brick) in the Galactic central molecular zone (CMZ), and compare their star-forming activities with those in molecular ...
Linjing Feng, Sihan Jiao, Fengwei Xu, Hauyu Baobab Liu, Xing Lu, Neal J. Evans II, Elisabeth A.C. Mills, Attila Kovács, Qizhou Zhang, Yuxin Lin, Jingwen Wu, Chao-Wei Tsai, Di Li, Zhi-Yu Zhang, Zhiqiang Yan, Hao Ruan, Fangyuan Deng, Yuanzhen Xiong, Ruofei Zhang   +18 more
doaj   +1 more source

Epigenetic heterogeneity and plasticity in therapy‐induced tumor states through single‐cell multi‐omics

Molecular Oncology, EarlyView.
Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim, Hwiyeong Lee, Jin Hong, Daechan Park   +3 more
wiley   +1 more source

Simulating Brown Dwarf Observations for Various Mass Functions, Birthrates, and Low-mass Cutoffs

The Astrophysical Journal
After decades of brown dwarf discovery and follow-up, we can now infer the functional form of the mass distribution within 20 pc, which serves as a constraint on star formation theory at the lowest masses.
Yadukrishna Raghu, J. Davy Kirkpatrick, Federico Marocco, Christopher R. Gelino, Daniella C. Bardalez Gagliuffi, Jacqueline K. Faherty, Steven D. Schurr, Adam C. Schneider, Aaron M. Meisner, Marc J. Kuchner, Hunter Brooks, Jake Grigorian, The Backyard Worlds: Planet 9 Collaboration   +12 more
doaj   +1 more source

The connection between the UV colour of early-type galaxies and the stellar initial mass function revisited

, 2015
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society © 2014 RAS. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Zaritsky, Dennis, Gil De Paz, Armando, Bouquin, Alexandre Y. K.   +2 more
core   +1 more source

PAK1 activation drives divergent resistance mechanisms to aromatase inhibition and tamoxifen in a luminal: A breast cancer model

Molecular Oncology, EarlyView.
Breast cancer remains a major cause of cancer death in women, frequently developing endocrine therapy resistance. This study demonstrates that upregulated p21‐activated kinase 1 (PAK1) activity drives resistance to tamoxifen and long‐term estrogen deprivation in ER+ breast cancer models.
Luisa Schwarzmüller, Janina Müller, Efstathios‐Iason Vlachavas, Lukas Beumers, Lena Fleischhacker, Sara Burmester, Angelika Wörner, Sabine Karolus, Dominic Helm, Cindy Körner, Stefan Wiemann   +10 more
wiley   +1 more source

The Present-day Mass Function of Star Clusters in the Solar Neighborhood

The Astrophysical Journal
This work analyzes the present-day mass function (PDMF) of 93 star clusters utilizing Gaia Data Release 3 data, with membership determined by the StarGo machine-learning algorithm.
Xiaoying Pang, Siqi Liao, Jiadong Li, Zhiqiang Yan, Mingjie Jian, M. B. N. Kouwenhoven, Shih-Yun Tang, Yifan Wang   +7 more
doaj   +1 more source

Astronomy Astrophysics The relationship between the prestellar core mass function and the stellar initial mass function

, 2008
Stars form from dense molecular cores, and the mass function of these cores (the CMF) is often found to be similar to the form of the stellar initial mass function (IMF).
P Kroupa, D Nutter, D Ward-Thompson, S P Goodwin, A P Whitworth   +4 more
core