Results 31 to 40 of about 177,712 (231)

Theoretical Examination of the Lithium Depletion Boundary

, 2003
We explore the sensitivity in open cluster ages obtained by the lithium depletion boundary (LDB) technique to the stellar model input physics. The LDB age technique is limited to open clusters with ages ranging from 20 to 200 Myr.
Alison Sills, Baraffe I., Burke C. J., Christopher J. Burke, D’Antona F., Ludwig H.-G., Magni G., Marc H. Pinsonneault, Mermilliod J.-C., Plez B., Pols O. R., Potekhin A. Y., Potekhin A. Y., Siess L., Ventura P., Vitense E.   +15 more
core   +2 more sources

Extremal dyonic black holes in D=4 Gauss-Bonnet gravity [PDF]

, 2008
We investigate extremal dyon black holes in the Einstein-Maxwell-dilaton (EMD) theory with higher curvature corrections in the form of the Gauss-Bonnet density coupled to the dilaton.
Chiang-Mei Chen, D. Garfinkle, Dmitri V. Gal’tsov, Dmitry G. Orlov, G. W. Gibbons, S. J. Poletti   +5 more
core   +1 more source

Low-Dose Berberine Attenuates the Anti-Breast Cancer Activity of Chemotherapeutic Agents via Induction of Autophagy and Antioxidation

Dose-Response, 2020
Berberine (BBR), a major active component of Rhizoma coptidis , is one of the most promising agents for breast cancer adjuvant therapy. It is well accepted that BBR could exhibit remarkable anticancer efficacy with few side effects, and when treated with
Bing Han, Kai Wang, Yanbei Tu, Lihua Tan, Chengwei He   +4 more
doaj   +1 more source

Changes in Coral Skeleton Growth Recorded by Density Band Stratigraphy, Crystalline Structure, and Hiatuses

Frontiers in Marine Science, 2021
Next-generation high resolution brightfield microscopy, x-radiography, and microcomputed tomography (microCT) analyses indicate that coral skeleton high density band (HDB) and low density band (LDB) stratigraphic sequences record dynamic changes in coral
Kyle W. Fouke, Kyle W. Fouke, Jeffrey M. Trop, Mayandi Sivaguru   +3 more
doaj   +1 more source

The rotation-lithium depletion correlation in the β Pictoris association and the LDB age determination [PDF]

, 2016
Context. Evidence exists in the 125-Myr Pleiades cluster, and more recently in the 5-Myr NGC 2264 cluster, to show that rotation plays a key role in lithium (Li) depletion processes among low-mass stars.
S. Messina, A. Lanzafame, G. Feiden, M. Millward, S. Desidera, A. Buccino, I. Curtis, E. Jofré, P. Kehusmaa, B. Medhi, B. Monard, R. Petrucci   +11 more
semanticscholar   +1 more source

The Caenorhabditis elegans Ldb/NLI/Clim Orthologue ldb-1 Is Required for Neuronal Function

Developmental Biology, 2000
LIM homeodomain (LIM-HD) and nuclear LIM-only proteins play important roles in a variety of developmental processes in animals. In some cases their activities are modulated by a nuclear LIM binding protein family called Ldb/NLI/Clim. Here we characterize the Ldb/NLI/Clim orthologue ldb-1 of the nematode Caenorhabditis elegans. Two alternatively spliced
Cassata, G., Rohrig, S., Kuhn, F., Hauri, H. P., Baumeister, R., Burglin, T. R.   +5 more
openaire   +3 more sources

Correction: Transcriptional Regulation by CHIP/LDB Complexes

PLoS Genetics, 2011
Table S5 is incorrect. Please view the correct Table S5 here: Click here for additional data file.(24K, xls)
Revital Bronstein, Liron Levkovitz, Nir Yosef, Michaela Yanku, Eytan Ruppin, Roded Sharan, Heiner Westphal, Brian Oliver, Daniel Segal   +8 more
openaire   +4 more sources

Measuring CMB Polarization with BOOMERANG

, 2003
BOOMERANG is a balloon-borne telescope designed for long duration (LDB) flights around Antarctica. The second LDB Flight of BOOMERANG took place in January 2003. The primary goal of this flight was to measure the polarization of the CMB.
A Balbi, A Boscaleri, A de Oliveira-Costa, A Iacoangeli, A Melchiorri, A.E Lange, A.H Jaffe, B.P Crill, C MacTavish, C.B Netterfield, C.R Contaldi, Crill, D Pogosyan, E Hivon, E Pascale, E Torbet, F Nati, F Piacentini, G De Gasperis, G De Troia, G di Stefano, G Polenta, G Romeo, Hinshaw, J Borrill, J.E Ruhl, J.J Bock, J.R Bond, Jones, K Ganga, Kogut, Kovac, M Tegmark, Masi, Masi, Mason, N Vittorio, P Cabella, P de Bernardis, P Natoli, P.A.R Ade, P.D Mauskopf, S Masi, S Prunet, S Ricciardi, T Montroy, T.S Kisner, V.V Hristov, W.C Jones, Zaldarriaga   +49 more
core   +1 more source

Identification of the Lithium Depletion Boundary and Age of the Southern Open Cluster Blanco 1

, 2010
We present results from a spectroscopic study of the very low mass members of the Southern open cluster Blanco 1 using the Gemini-N telescope. We obtained intermediate resolution (R~4400) GMOS spectra for 15 cluster candidate members with I~14-20 mag ...
Baraffe, Barrado y Navascués, Barrado y Navascués, Bildsten, Bochanski, Burke, Cargile, Cargile, Carpenter, Cayrel, Chabrier, Edvardsson, Nidever, Schaller, Skrutskie, Stauffer, Stauffer, Stauffer, Stauffer, Ushomirsky, Yee   +20 more
core   +1 more source

Ages of young stars [PDF]

, 2013
Determining the sequence of events in the formation of stars and planetary systems and their time-scales is essential for understanding those processes, yet establishing ages is fundamentally difficult because we lack direct indicators. In this review we
Hillenbrand, Lynne A., Jeffries, Rob D., Mamajek, Eric E., Naylor, Tim, Soderblom, David R.   +4 more
core   +2 more sources