Results 81 to 90 of about 344,290 (331)

Ages, Distances, and the Initial Mass Functions of Stellar Clusters [PDF]

, 2000
We provide a review of the current status of several topics on the ages, distances, and mass functions of open clusters, with a particular emphasis on illuminating the areas of uncertainty.
Jeffries, R. D., Martin, E. L., Stauffer, J. R., Terndrup, D. M.   +3 more
core   +2 more sources

Not an open cluster after all: the NGC 6863 asterism in Aquila

, 2009
Shortly after birth, open clusters start dissolving; gradually losing stars into the surrounding star field. The time scale for complete disintegration depends both on their initial membership and location within the Galaxy.
Bica, Bovy, C. de la Fuente Marcos, C. Moni Bidin, Cardelli, Carraro, Carraro, Carraro, Coelho, de la Fuente Marcos, de la Fuente Marcos, Dias, Dreyer, Edvardsson, Fuhrmann, G. Carraro, Girardi, Gratton, Herschel, Herschel, Johnson, Katz, Kuijken, Kulldorff, Kulldorff, Lada, Lodén, Lodén, Lodén, Mermilliod, Odenkirchen, Pavani, R. de la Fuente Marcos, Reddy, Rieke, Schlegel, Sneden, Tonry, van Albada, Villanova, Villanova, von Hoerner, von Hoerner, Yi, Zacharias   +44 more
core   +1 more source

Targeting EZH2 reverses thyroid cell dedifferentiation and enhances iodide uptake in anaplastic thyroid cancer

FEBS Letters, EarlyView.
Anaplastic thyroid cancer (ATC) lacks iodide uptake ability due to MAPK activation increasing the expression of the histone methyltransferase EZH2, which represses thyroid differentiation genes (TDGs) such as the sodium iodide symporter (NIS). Dual inhibition of MAPK (U0126) and EZH2 (EPZ6438/Tazemetostat) reverses this mechanism, thus restoring TDG ...
Diego Claro de Mello, Marcella Maringolo Cristovão, Guilherme Henrique, Vinicius Gonçalves Rodrigues, Caroline Serrano‐Nascimento, Edna Teruko Kimura, Cesar Seigi Fuziwara   +6 more
wiley   +1 more source

Search for and investigation of new stellar clusters using the data from huge stellar catalogues

, 2005
We present new automatic methods of search for star clusters using the data available in new huge stellar catalogues. Using 2MASS catalogue we have discovered over ten new open clusters in the region of Galaxy anticenter and determined their physical ...
Glushkova, Elena, Koposov, Sergey, Zolotukhin, Ivan   +2 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Revisit of 77 Clusters Candidates with Multiple Main Sequences using Gaia DR3

The Astronomical Journal
Gaia DR3 data provide the latest and full astrometric data for more than 1.5 billion sources, and these allow us to revisit the 77 special open cluster candidates collected from LISC star cluster catalog.
Jing Chen, Zhongmu Li, Su Zhang, Wenchang Zhao, You Wu   +4 more
doaj   +1 more source

Understanding the Planetary Formation and Evolution in Star Clusters (UPiC). I. Evidence of Hot Giant Exoplanets Formation Timescales

The Astronomical Journal, 2023
Planets in young star clusters could shed light on planet formation and evolution since star clusters can provide accurate age estimation. However, the number of transiting planets detected in clusters was only ∼30, too small for statistical analysis ...
Yuan-Zhe Dai, Hui-Gen Liu, Jia-Yi Yang, Ji-Lin Zhou   +3 more
doaj   +1 more source

THE EVOLUTION OF PRIMORDIAL BINARY OPEN STAR CLUSTERS: MERGERS, SHREDDED SECONDARIES, AND SEPARATED TWINS [PDF]

, 2010
The properties of the candidate binary star cluster population in the Magellanic Clouds and Milky Way are similar. The fraction of candidate binaries is ~10% and the pair separation histogram exhibits a bimodal distribution commonly attributed to their ...
R. D. L. F. Marcos, C. D. L. F. Marcos
semanticscholar   +1 more source

On the efficiency of field star capture by star clusters

, 2007
An exciting recent finding regarding scaling relations among globular clusters is the so-called 'blue tilt': clusters of the blue sub-population follow a trend of redder colour with increasing luminosity.
Baranov, Baumgardt, Bedin, Bekki, Bekki, Côté, D'Antona, de Oliveira Filho, Dopita, Fellhauer, Frank, Gnedin, H. Baumgardt, Harris, Jordán, Jordán, Lamers, Mieske, Mints, Morgan, Parmentier, Parmentier, Peng, Piotto, Prantzos, Recchi, Romanowsky, S. Mieske, Smith, Spitler, Strader, Thoul   +31 more
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source