Results 31 to 40 of about 20,557 (265)

Rotation and magnetism of Kepler pulsating solar-like stars: Towards asteroseismically calibrated age-rotation relations [PDF]

, 2014
International audienceKepler ultra-high precision photometry of long and continuous observations provides a unique dataset in which surface rotation and variability can be studied for thousands of stars.
Ballot, J., S. Bloemen, Chaplin, W. J., Ceillier, T., M. B. Nielsen, C. Karoff, S. Mathis, Chaplin, W.J., Metcalfe, T.S., D. Salabert, R. A. García, Davies, G., Karoff, Christoffer, Metcalfe, T., Campante, T.L., García, R.A., S. Mathur, Beck, P., T. L. Campante, van Saders, J. L., Garcia, R., P. G. Beck, Suárez, J.C., Do Nascimento, J. D., Mathis, S., Davies, G.R., Jimenez, Alfredo, Suárez, J. C., do Nascimento Jr., J.-D., Bloemen, S., Salabert, D., M. Pinsonneault, Nielsen, M. B., Karoff, C., J. L. van Saders, Pinsonneault, M., Beck, P. G., Nielsen, M.B., A. Jiménez, do Nascimento Jr., J., W. J. Chaplin, Davies, G. R., Chaplin, W., Beck, P.G., T. S. Metcalfe, van Saders, J., J. C. Suárez, do Nascimento, J.-D., Jr., G. R. Davies, J.-D. do Nascimento Jr., Mathur, S., García, R. A., Suárez, J., Jiménez, A., Saders, J.L. van, Metcalfe, T. S., J. Ballot, T. Ceillier, Campante, Tiago L., Nascimento, J.-D. do, Nielsen, M., Campante, T., Campante, T. L.   +62 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Oscillations of Rapidly Rotating Stars [PDF]

International Astronomical Union Colloquium, 2000
AbstractWe present numerical simulations of gravito-inertial waves propagating in radiative zones of rapidly rotating stars. A first model, using the Boussinesq approximation, allows us to study the oscillations of a quasi-incompressible stratified fluid embedded in a rapidly rotating sphere or spherical shell. In a second step, we investigate the case
Dintrans, Boris, Rieutord, Michel
openaire   +2 more sources

Rotation in the Pleiades with K2. II. Multiperiod stars [PDF]

, 2016
We use K2 to continue the exploration of the distribution of rotation periods in Pleiades that we began in Paper I. We have discovered complicated multi-period behavior in Pleiades stars using these K2 data, and we have grouped them into categories ...
Pinsonneault, M., Gillen, E, MICELA, Giuseppina, Micela, G., Stassun, K., Hillenbrand, LA, Cody, A. M., Pinsonneault, M, Bouy, H, Stassun, K, Barrado, D., Micela, G, Cameron, A. Collier, Bouvier, J, Aigrain, S, Barrado y Navascués, D., Rebull, L. M., Rebull, LM, Barrado, D, Valenti, J, Bouvier, J., Stauffer, JR, Soderblom, DR, Gillen, E., Cody, AM, Vrba, F, Vrba, F., Aigrain, S., Cameron, AC, Hillenbrand, L. A., Valenti, J., Bouy, H., Ciardi, D, Somers, G, Soderblom, D. R., Somers, G., Collier Cameron, A., Stauffer, J. R., Aigrain, Suzanne, Ciardi, D.   +39 more
core   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

Magnetic activity and hot Jupiters of young Suns : the weak-line T Tauri stars V819 Tau and V830 Tau [PDF]

, 2015
SGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. SHPA acknowledges financial support from CNPq, CAPES and Fapemig.
Delfosse, X., Hébrard, E., Gregory, S. G.; id_orcid, Ménard, F., Gregory, S. G., Alencar, S. H. P., Donati, J. -F., Takami, M., Vidotto, A. A., Petit, P., MaTYSSE Collaboration, Grankin, K., Donati, J.F., Figueira, P., Donati, J. F., Menard, Francois, Morin, J., Gregory, Scott, Herczeg, G., Bouvier, J., Jardine, Moira Mary, Fares, R., Hussain, G. A. J., Jardine, M. M., Boisse, I., Moutou, C., Donati, J.-F., Hussain, Gaitee Ara Jaffer, Fares, Rim, Collaboration, Matysse, Doyon, R., Vidotto, Aline, Malo, L.   +32 more
core   +1 more source

Photometric determination of rotation axis inclination, rotation rate, and mass of rapidly rotating intermediate-mass stars

, 2023
Intermediate-mass stars are often fast rotators, and hence are centrifugally flattened and affected by gravity darkening. To analyse this kind of stars properly, one must turn to 2D models to compute the visible radiative flux and to take the geometrical
Lazzarotto, Axel, Alain Hui-Bon-Hoa, Axel Lazzarotto, Hui-Bon-Hoa, Alain, Rieutord, Michel, Michel Rieutord   +5 more
core   +1 more source

Loss of IGF‐1R impairs DNA‐PKcs recruitment to chromatin leading to defective end‐joining

Molecular Oncology, EarlyView.
IGF‐1R promotes radioresistance by facilitating DNA‐PKcs recruitment to chromatin, enabling non‐homologous end‐joining (NHEJ) repair of double‐strand breaks. Inhibition or loss of IGF‐1R disrupts this recruitment to damage sites, driving compensatory reliance on microhomology‐mediated end‐joining (MMEJ) repair.
Matthew O. Ellis, Jack V. Mills, Wojciech Niedzwiedz, Valentine M. Macaulay   +3 more
wiley   +1 more source

Finding novel vulnerabilities of hypomorphic BRCA1 alleles

Molecular Oncology, EarlyView.
Synthetic lethality screens performed to identify novel vulnerabilities often model complete gene loss, thereby overlooking patient‐derived hypomorphic mutations. In this study, we have performed genome‐wide CRISPR screens on BRCA1 hypomorphic mutations, showing BRCA1I26A behaves like wild‐type, while BRCA1R1699Q mimics deficiency. Furthermore, we have
Anne Schreuder, Klaas de Lint, Hồ Mỹ Phúc Võ, Mariana M. Góis, Rosalie A. Kampen, Marta San Martin Alonso, Ilse Nootenboom, Veronica Garzero, Tiemen J. Wendel, Rob M. F. Wolthuis, Sylvie M. Noordermeer   +10 more
wiley   +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