Results 91 to 100 of about 239,741 (340)

PSR J1922+37: a 1.9 s Pulsar Discovered in the Direction of the Old Open Cluster NGC 6791

The Astrophysical Journal Letters
More than 300 pulsars have been discovered in Galactic globular clusters; however, none have been found in open clusters. Here we present results from a 20 hr survey of seven open clusters with the Five-hundred-meter Aperture Spherical radio Telescope ...
Xiao-Jin Liu, Rahul Sengar, Matthew Bailes, Ralph P. Eatough, Jianping Yuan, Na Wang, Weiwei Zhu, Lu Zhou, He Gao, Zong-Hong Zhu, Xing-Jiang Zhu   +10 more
doaj   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Revisiting Open Clusters within 200 pc in the Solar Neighborhood with Gaia DR3

The Astronomical Journal
In this study, we develop a membership identification method and apply it for 30 open clusters (OCs) within 200 pc of the Sun using astrometric data of Gaia DR3.
Penghui Liu, Min Fang, Yue-Lin Sming Tsai, Xiaoying Pang, Fan Wang, Xiaoting Fu   +5 more
doaj   +1 more source

Photometric and kinematic studies of open star clusters. III. NGC 4103, NGC 5281, and NGC 4755

, 2001
We present CCD photometry and proper motion studies of the three open star clusters NGC 4103, NGC 5281, and NGC 4755 (kappa Cru). By fitting isochrones to the colour magnitude diagrams, we found that all three objects are young open star clusters with ...
Ahumada, Aparicio, Arp, Baumgardt, Becker, Bono, Brunzendorf, Burki, Clariá, Clariá, Dachs, Geffert, Glushkova, Horner, Høg, J. Brunzendorf, J. Sanner, J.-M. Will, Jakate, King, King, Landolt, Lenhardt, M. Geffert, Makarov, Mermilliod, Moffat, Ortiz-Gil, Raboud, Röser, Sagar, Sagar, Salpeter, Sanders, Sanner, Sanner, Scalo, Schaller, Slettebak, Stetson, Urban, Wesselink, Zorec   +42 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

A Near-infrared Spectral Library of Very Young Brown Dwarfs and Planetary Mass Objects in the Orion Nebula Cluster

The Astrophysical Journal
Age-benchmark brown dwarf and planetary-mass-object spectroscopy is key to characterizing substellar evolution. In this paper, we present the JHK medium-resolution ( R ∼ 3000) spectra of 25 7–76 M _Jup (spectral types L3.0–M6.0) brown dwarfs and ...
Elena Manjavacas, Mario Gennaro, Sarah Betti, Laurent Pueyo, William O. Balmer, Massimo Robberto   +5 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Forest Fire Clustering: A Novel Tool for Identifying Star Members of Clusters

The Astronomical Journal
In the era of a data-driven landscape, the development of an efficient and interpretable method has become a pivotal tool for robustly identifying memberships of clusters.
Xingyin Wei, Jing Chen, Su Zhang, Feilong He, Yunbo Zhao, Xuran He, Yongjie Fang, Xinhao Chen, Hao Yang   +8 more
doaj   +1 more source

PICALM::MLLT10 translocated leukemia

FEBS Letters, EarlyView.
This comprehensive review of PICALM::MLLT10 translocated acute leukemia provides an in‐depth review of the structure and function of CALM, AF10, and the fusion oncoprotein (1). The multifaceted molecular mechanisms of oncogenesis, including nucleocytoplasmic shuttling (2), epigenetic modifications (3), and disruption of endocytosis (4), are then ...
John M. Cullen, Antonia C. Nakatsugawa, Natalie Barton, Henry Haines, Gary S. Stein, Janet L. Stein, Daniel S. Wechsler, Jessica L. Heath   +7 more
wiley   +1 more source

Utilizing Voronoi Tessellations to Determine Radial Density Profiles

The Astronomical Journal
We have developed a novel method of determining 2D radial density profiles for astronomical systems of discrete objects using Voronoi tessellations. This Voronoi-based method was tested against the standard annulus-based method on five simulated systems ...
Veronika Dornan, William E. Harris
doaj   +1 more source