Results 111 to 120 of about 2,514,308 (344)

Stellar spectrum classifier [PDF]

, 1970
Stellar classification is accomplished by correlating holograms of classified spectra with the Fourier transform of the spectral images to be ...
Reid, J. H.
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

A Spectroscopic Survey of Metal-poor OB Stars in Local Dwarf Galaxy NGC 3109

The Astrophysical Journal
As JWST uncovers increasingly strong evidence that metal-poor, massive stars in early galaxies dominated reionization, observational constraints on the properties of such stars are more relevant than ever before.
Abby Mintz, O. Grace Telford, Evan N. Kirby, John Chisholm, Kristen B. W. McQuinn, Danielle A. Berg   +5 more
doaj   +1 more source

Extremely red galaxies: dust attenuation and classification

, 2003
We re-address the classification criterion for extremely red galaxies (ERGs) of Pozzetti and Mannucci (2000 -- PM00), which aims to separate, in the Ic-K (or Rc-K) vs. J-K colour--colour diagram, passively evolving, old (> 1 Gyr) stellar populations in a
A. N. Witt, Adelberger, Alexander, Andreani, Barger, Barsella, Beck, Bertoldi, Bessel, Bianchi, Branch, Brusa, C. Maraston, Calzetti, Calzetti, Calzetti, Cimatti, Cimatti, Cimatti, Cimatti, Cimatti, Cousins, D. Pierini, Davies, Drory, Dwek, Eales, Elbaz, Ellison, Elston, Fanelli, Fioc, Gavazzi, Gehrz, Gordon, Granato, Greenberg, Heckman, Hirashita, Hirashita, Hughes, Jones, Kauffmann, Kozasa, Lutz, Mannucci, Maraston, Mas-Hesse, McKee, Misselt, Mohan, Moriondo, Moseley, Nakai, Norman, Phillips, Pozzetti, R. Bender, Saglia, Salpeter, Smail, Smail, Smail, Smith, Smith, Springel, Stevens, Stiavelli, Suchkov, Suchkov, Takagi, Takeuchi, Thomas, Todini, Totani, Vijh, White, Wise, Witt, Witt, Yan   +80 more
core   +2 more sources

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

FEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom, Jaewoong Jang, Jung Sun Park, Yong‐Kook Kang   +3 more
wiley   +1 more source

The stellar composition of the star formation region CMa R1 -- I. Results from new photometric and spectroscopic classifications [PDF]

, 1999
В. С. Шевченко, O. V. Ezhkova, M. Ibrahimov, M. E. van den Ancker, H. R. E. Tjin A Djie   +4 more
openalex   +1 more source

Infall Motions in Massive Star-Forming Regions: Results from Years 1 & 2 of the MALT90 Survey

, 2015
Massive star-forming regions with observed infall motions are good sites for studying the birth of massive stars. In this paper, 405 compact sources have been extracted from the APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) compact sources ...
Baan, W. A., Esimbek, Jarken, He, Yu-Xin, Ji, Wei-Guang, Li, Da-Lei, Tang, Xin-Di, Wu, Gang, Yuan, Ye, Zhou, Jian-Jun   +8 more
core   +1 more source

PARP inhibitors elicit distinct transcriptional programs in homologous recombination competent castration‐resistant prostate cancer

Molecular Oncology, EarlyView.
PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham, Jasibel Vasquez‐Gonzalez, Samantha M. Barnada, Salome Tchotorlishvili, Latese Jones, Ryan Maguire, Genevieve Lewis, Kinza Rizwan, Jenny Deng, Salma Koachar, Drithi Patel, Hailey Shankle, Tessa Mulders, Namra Ajmal, Charalambos Solomides, Emad S. Alnemri, Teresa F. Alnemri, Ayesha A. Shafi, Leonard G. Gomella, Wm Kevin Kelly, Steven B. McMahon, Matthew J. Schiewer   +21 more
wiley   +1 more source

Machine Learning Techniques to Distinguish Giant Stars from Dwarf Stars Using Only Photometry—Pushing Redward

The Astronomical Journal
We present our photometric method, which combines Subaru/Hyper Suprime-Cam N B 515, g -band, and i- band filters to distinguish giant stars in Local Group galaxies from Milky Way dwarf contamination.
Keyi Ding, Carrie Filion, Rosemary F.G. Wyse, Evan N. Kirby, Itsuki Ogami, Masashi Chiba, Yutaka Komiyama, László Dobos, Alexander S. Szalay   +8 more
doaj   +1 more source

Automated stellar variability classification using TESS light curves

, 2021
Emma Chickles, Tansu Daylan, Leonard A. Gordon   +2 more
openalex   +1 more source