Results 81 to 90 of about 201,996 (278)

Measurements of Stellar Properties through Asteroseismology: A Tool for Planet Transit Studies

, 2008
Oscillations occur in stars of most masses and essentially all stages of evolution. Asteroseismology is the study of the frequencies and other properties of stellar oscillations, from which we can extract fundamental parameters such as density, mass ...
Bedding, Christensen-Dalsgaard, Frandsen, García, Hans Kjeldsen, Jørgen Christensen-Dalsgaard, Timothy R. Bedding, Ulrich   +7 more
core   +1 more source

In vitro properties of patient serum predict clinical outcome after high dose rate brachytherapy of hepatocellular carcinoma

Molecular Oncology, EarlyView.
Following high dose rate brachytherapy (HDR‐BT) for hepatocellular carcinoma (HCC), patients were classified as responders and nonresponders. Post‐therapy serum induced increased BrdU incorporation and Cyclin E expression of Huh7 and HepG2 cells in nonresponders, but decreased levels in responders.
Lukas Salvermoser, Jan Niklas Schäfer, Shraga Nahum Goldberg, Philipp Maximilian Kazmierczak, Moritz Nikolaus Gröper, Philipp Franz Linden, Elif Öcal, Tanja Burkard, Stefanie Corradini, Najib Ben Khaled, Moritz Wildgruber, Max Seidensticker, Jens Ricke, Matthias Stechele, Marianna Alunni‐Fabbroni   +14 more
wiley   +1 more source

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

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 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

Effects of gravitational darkening on the determination of fundamental parameters in fast rotating B-type stars

, 2005
In this paper we develop a calculation code to account for the effects carried by fast rotation on the observed spectra of early-type stars. Stars are assumed to be in rigid rotation and the grid of plane-parallel model atmospheres used to represent the ...
A.-M. Hubert, Barnard, Bodenheimer, Castelli, Chauville, Claret, Claret, Clement, Collins, Collins, Collins, Collins, Collins, Collins, Collins, Collins, Collins, Collins, Cunto, Didelon, Endal, Endal, Frémat, Gray, Hadrava, Hardorp, Hardorp, Hardorp, Hardorp, Heger, Hubeny, J. Zorec, Kodaira, Lanz, Leckrone, Llorente de Andres, Lucy, M. Floquet, Maeder, Maeder, Maeder, Maeder, Meynet, Mihalas, Moss, Pinsonneault, Pérez Hernández, Reiners, Sackmann, Schaller, Sigut, Slettebak, Smith, Stoeckley, Townsend, Tuominen, Vidal, Y. Frémat, Zahn, Zeipel, Zorec   +60 more
core   +2 more sources

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

Molecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker, Keren Zohar, Martin Böttcher, Thomas Wartmann, Henry Freudenstein, Maximilian Doelling, Mihailo Andric, Wenjie Shi, Or Kakhlon, Katrin Hippe, Beatrix Jahnke, Dimitrios Mougiakakos, Franziska Baenke, Daniel Stange, Roland S. Croner, Michal Linial, Ulf D. Kahlert   +16 more
wiley   +1 more source

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

The fundamental parameters of the roAp star 10 Aql

, 2013
Due to the strong magnetic field and related abnormal surface layers existing in rapidly oscillating Ap stars, systematic errors are likely to be present when determining their effective temperatures, which potentially compromises asteroseismic studies ...
Bigot, L., Borgniet, S., Brandão, I., Brummelaar, T. A. ten, Chesneau, O., Cunha, M., Farrington, C., Goldfinger, P. J., McAlister, H., Mourard, D., Nardetto, N., Perraut, K., Sturmann, J., Sturmann, L., Turner, N.   +14 more
core   +2 more sources

Fundamental parameters of Galactic luminous OB stars IV. The upper HR diagram [PDF]

, 1999
A. Herrero, J. Puls, M. R. Villamariz
openalex   +1 more source