Results 121 to 130 of about 173,796,379 (301)

The First Photometric Analysis of Two Low-mass-ratio Contact Binary Systems in TESS Survey

The Astronomical Journal
Low-mass-ratio ( q ) contact binary systems are progenitors of stellar mergers such as blue stragglers or fast-rotating FK Com stars. In this study, we present the first light curve analysis of two newly identified low mass-ratio contact binary systems ...
Qiyuan Cheng, Jianping Xiong, Xu Ding, Kaifan Ji, Jiao Li, Chao Liu, Jiangdan Li, Jingxiao Luo, Xin Lyu, Zhanwen Han, Xuefei Chen   +10 more
doaj   +1 more source

Flow Enabled Target Capture Halbach‐based magnetic enrichment increases circulating tumor cell capture from blood in metastatic cancer patients

Molecular Oncology, EarlyView.
Pair‐wise comparison of the CellSearch and FETCH enrichment technologies for circulating tumor cells (CTCs) from metastatic breast, prostate, and small cell lung cancer patients shows an increased capture of CTCs using FETCH enrichment. The clinical implementation of circulating tumor cells (CTCs) as a predictive tool for therapy efficacy in the ...
Michiel Stevens, Anouk Mentink, Tom Niessink, Frank Coumans, Leonie Mekenkamp, Ruchi Bansal, Jeroen Hiltermann   +6 more
wiley   +1 more source

The Secondary Component of the Extremely Low Mass Ratio Massive Binary HD 165246 Revealed by GHOST

The Astrophysical Journal
In the pursuit of understanding the multiplicity of massive stars, the OWN Survey has undertaken spectroscopic monitoring of hundreds of targets over the past 20 yr.
C. N. Rodriguez, T. Ansin, G. A. Ferrero, O. G. Benvenuto, R. Gamen, N. I. Morrell, J. I. Arias, R. E. Higa, C. Putkuri, C. Johnston, K. Chiboucas, E. Deibert, C. R. Hayes, J.-E. Heo, M. Jeong, V. Kalari, E. Martioli, V. M. Placco, K. A. Venn, S. Xu, R. Diaz, M. Gomez-Jimenez, R. Ruiz-Carmona, C. Simpson, A. W. McConnachie, J. Pazder, G. Burley, T. A. M. Berg, J. G. Robertson, K. Labrie, J. Thomas-Osip   +30 more
doaj   +1 more source

Chemical composition and fundamental parameters of roAp stars

, 1998
5 pages, 2 figures (the first being in fact a table), to appear in: Proc. of the 26th workshop of the European Working Group on CP stars, eds. P. North, A. Schnell and J. Ziznovsky, Contrib. Astr. Obs. Skalnate Pleso Vol.
openaire   +2 more sources

MITF maintains genome stability in nonmelanocyte lineages

Molecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir, Adrián López García de Lomana, Thejus B. Venkatesh, Kritika Kirty, Snaevar Sigurdsson, Linda Vidarsdottir, Ramile Dilshat, Erla Sveinbjornsdottir, Snaedis Ragnarsdottir, Daniel H Magnusson, Maria R. Bustos, Eirikur Steingrimsson, Thorkell Gudjonsson, Stefan Sigurdsson   +13 more
wiley   +1 more source

Radial-velocity measurements of subdwarf B stars [PDF]

, 2011
Subdwarf B (sdB) stars are hot, subluminous stars which are thought to be core-helium burning with thin hydrogen envelopes. The mechanism by which these stars lose their envelopes has been controversial, but it has been argued that binary star ...
Copperwheat, CM, Maxted, P. F. L., Morales-Rueda, L., Morales-Rueda, L, Heber, U, L. Morales-Rueda, U. Heber, Copperwheat, C. M., Heber, U., C. M. Copperwheat, T. R. Marsh, Marsh, TR, Maxted, PFL, Marsh, T. R., P. F. L. Maxted   +14 more
core   +1 more source

Model-driven Stellar Spectroscopy with the Total Differential Spectral Model (TDSM): Framework and Its Application to 11 Million LAMOST Low-resolution Spectra

The Astrophysical Journal Supplement Series
Deriving stellar astrophysical parameters from large-scale spectroscopic surveys requires accurate modeling of spectra across a wide wavelength coverage and a broad range of stellar parameter space, which remains a great challenge.
Lanya Mou, Maosheng Xiang, Haibo Yuan, Tianmin Wu, Meng Zhang   +4 more
doaj   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

RR Lyrae stars in the GCVS observed by the Qatar Exoplanet Survey [PDF]

, 2015
This publication was made possible by NPRP grant # X-019-1-006 from the Qatar National Research Fund (a member of Qatar Foundation). AAF is grateful to DGAPA-UNAM for grant number IN104612.We used the light curve archive of the Qatar Exoplanet Survey to ...
Bramich, Daniel Martyn, Cameron, Andrew Collier, Arellano Ferro, A., Horne, Keith Douglas, West, R. G., Alsubai, Khalid Abdulla T, Pollacco, D., Parley, Neil   +7 more
core  

A Homogeneous Catalog of Oscillating Solar-type Stars Observed by the Kepler Mission and a New Amplitude Scaling Relation Including Chromospheric Activity

The Astronomical Journal
We present a homogeneous catalog of global asteroseismic parameters and derived stellar parameters for 765 Kepler main-sequence and subgiant stars. The catalog was produced by reanalyzing all available Kepler DR25 short-cadence data using pySYD , an ...
Maryum Sayeed, Daniel Huber, Ashley Chontos, Yaguang Li   +3 more
doaj   +1 more source