Results 51 to 60 of about 250,785 (226)

The surface-brightness fluctuation distance of NGC 5128

The Astronomical Journal, 1990
Observations are presented of the surface-brightness fluctuations and photometry of globular clusters in the interacting galaxy NGC 5128 (Centaurus A). It is found that the fluctuation apparent magnitudes are 26.08 and 28.12; the I band magnitude implies that NGC 5128 is 3.1 + or - 0.1 Mpc distant.
John L. Tonry, Paul L. Schechter
openaire   +2 more sources

Cellular liquid biopsy provides unique chances for disease monitoring, preclinical model generation and therapy adjustment in rare salivary gland cancer patients

Molecular Oncology, EarlyView.
We quantified and cultured circulating tumor cells (CTCs) of 62 patients with various cancer types and generated CTC‐derived tumoroid models from two salivary gland cancer patients. Cellular liquid biopsy‐derived information enabled molecular genetic assessment of systemic disease heterogeneity and functional testing for therapy selection in both ...
Nataša Stojanović Gužvić, Florian Lüke, Steffi Treitschke, Andrea Coluccio, Martin Hoffmann, Giancarlo Feliciello, Adithi Ravikumar Varadarajan, Xin Lu, Kathrin Weidele, Catherine Botteron, Silvia Materna–Reichelt, Felix Keil, Katja Evert, Florian Weber, Thomas Schamberger, Michael Althammer, Jirka Grosse, Dirk Hellwig, Christian Schulz, Stephan Seitz, Peter Ugocsai, Anke Schlenska‐Lange, Roman Mayr, Ulrich Kaiser, Wolfgang Dietmaier, Bernhard Polzer, Jens Warfsmann, Kamran Honarnejad, Tobias Pukrop, Daniel Heudobler, Christoph A. Klein, Christian Werno   +31 more
wiley   +1 more source

Joint Analysis of near-infrared properties and surface brightness fluctuations of LMC star clusters [PDF]

Astrophys.J.700:1247-1261,2009, 2009
Surface brightness fluctuations have been proved to be a very powerful technique to determine the distance and characterize the stellar content in extragalactic systems. Nevertheless, before facing the problem of stellar content in distant galaxies, we need to calibrate the method onto nearby well-known systems.
arxiv   +1 more source

Combined spatially resolved metabolomics and spatial transcriptomics reveal the mechanism of RACK1‐mediated fatty acid synthesis

Molecular Oncology, EarlyView.
The authors analyzed the spatial distributions of gene and metabolite profiles in cervical cancer through spatial transcriptomic and spatially resolved metabolomic techniques. Pivotal genes and metabolites within these cases were then identified and validated.
Lixiu Xu, Jinqiu Li, Junqi Ma, Ayshamgul Hasim   +3 more
wiley   +1 more source

Quantitative Changes in the Surface Frozen Days and Potential Driving Factors in Northern Northeastern China

Land
Surface freezing and thawing processes pose significant influences on surface water and energy balances, which, in turn, affect vegetation growth, soil moisture, carbon cycling, and terrestrial ecosystems.
Dongyu Yang, Yang Xiao, Miao Li, Haoran Man, Dongliang Luo, Shuying Zang, Luhe Wan   +6 more
doaj   +1 more source

Bimodality of Galaxy Disk Central Surface Brightness Distribution in the Spitzer 3.6 micron band [PDF]

, 2013
We report on measurements of the disk central surface brightnesses (mu0) at 3.6 microns for 438 galaxies selected by distance and absolute magnitude cutoffs from the 2350+ galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G), one of the largest and deepest homogeneous mid-infrared datasets of nearby galaxies. Our sample contains nearly
arxiv   +1 more source

Surface Brightness Fluctuations for constraining the chemical enrichment of massive galaxies [PDF]

Proceedings of the International Astronomical Union, 2019
AbstractBased on very deep photometry, Surface Brightness Fluctuations (SBF) have been traditionally used to determine galaxy distances. We have recently computed SBF spectra of stellar populations at moderately high resolution, which are fully based on empirical stars.
A. Vazdekis, P. Rodrguez-Beltrán, M. Cerviño, M. Montes, I. Martn-Navarro, M. B. Beasley   +5 more
openaire   +3 more sources

Targeting the MDM2‐MDM4 interaction interface reveals an otherwise therapeutically active wild‐type p53 in colorectal cancer

Molecular Oncology, EarlyView.
This study investigates an alternative approach to reactivating the oncosuppressor p53 in cancer. A short peptide targeting the association of the two p53 inhibitors, MDM2 and MDM4, induces an otherwise therapeutically active p53 with unique features that promote cell death and potentially reduce toxicity towards proliferating nontumor cells.
Sonia Valentini, Giada Mele, Marika Attili, Maria Rita Assenza, Fulvio Saccoccia, Francesca Sardina, Cinzia Rinaldo, Roberto Massari, Nicola Tirelli, Alfredo Pontecorvi, Fabiola Moretti   +10 more
wiley   +1 more source

Analytical and Monte Carlo results for the surface-brightness diameter relationship in supernova remnants [PDF]

published on Apj 746 , 56 (2012), 2012
The surface brightness diameter relationship for supernovae remnants (SNRs) is explained by adopting a model of direct conversion of the flux of kinetic energy into synchrotron luminosity. Two laws of motion are adopted, a power law model for the radius-time relationship, and a model which uses the thin layer approximation.
arxiv   +1 more source

The Infrared Surface Brightness Fluctuation Distances to the Hydra and Coma Clusters [PDF]

The Astrophysical Journal, 1999
24 pages, 4 PostScript figures, 2 JPEG images; accepted for publication in ...
Gerard A. Luppino, Joseph B. Jensen, Joseph B. Jensen, John L. Tonry   +3 more
openaire   +4 more sources