Results 131 to 140 of about 2,699,041 (235)
Star Formation Activities of Galaxies in the Large-Scale Structures at z=1.2 [PDF]
, 2009 Recent wide-field imaging observations of the X-ray luminous cluster RDCSJ1252.9-2927 at z=1.24 uncovered several galaxy groups that appear to be embedded in filamentary structure extending from the cluster core. We make a spectroscopic study of the galaxies in these groups using GMOS on Gemini-South and FORS2 on VLT with the aim of determining if ...
arxiv +1 more source
Formation of Groups and Clusters of Galaxies
, 1998 The formation, inner properties, and spatial distribution of galaxy groups and clusters are closely related to the background cosmological model. We use numerical simulations of variants of the CDM model with different cosmological parameters and distinguish relaxed objects from recent mergers using the degree of virialisation.
Knebe, Alexander, Mueller, Volker
openaire +2 more sources
Star Clusters in Local Group Galaxies [PDF]
Symposium - International Astronomical Union, 1995 In this paper I will try to give the flavor of two different concepts of stellar population, namely, the population of cluster systems within galaxies, and the stellar populations within individual clusters. I hope to show, in concert with other papers in this volume, that a generic vision of Population I and II has been outdated for a long time.
openaire +2 more sources
British Journal of Pharmacology, EarlyView.Abstract Background and Purpose Opioid use disorder (OUD) is a pressing public health concern marked by frequent relapse during periods of abstinence, perpetuated by negative affective states. Classical antidepressants or the currently prescribed opioid pharmacotherapies have limited efficacy to reverse the negative affect or prevent relapse ...
Andria Michael +7 more
wiley +1 more source
Gaze‐Aware Visualisation: Design Considerations and Research Agenda
Computer Graphics Forum, EarlyView.We assemble a design framework for gaze‐aware visualisations along four axes—measurable data, inferable data, opportunities for support, and limiting factors to beware—and distil visualisation research challenges that preclude such systems. We show how our framework can be applied in practice to consider how eye‐tracking may benefit visualisation ...
R. Jianu +5 more
wiley +1 more source
Visualizing the Hidden Features of Galaxy Morphology with Machine Learning [PDF]
arXiv, 2018 We train three convolutional neural networks (CNNs) to classify galaxies with Galaxy Zoo 2 dataset and extract the activations from the last fully connected layer or the last average pooling layer of CNNs to study the high-dimensional abstract feature representations of galaxy images.
arxiv
Biopiracy and beauty brands? patent trends of cosmetics and skin care companies
The Journal of World Intellectual Property, EarlyView.Abstract Concerns about the fairness and equity of ‘biodiscovery’ research endure despite the creation of legal frameworks designed to regulate access and benefit sharing involving genetic resources and associated traditional knowledge. While some industries that engage in biodiscovery have been the subject of sustained scrutiny, others have received ...
David J. Jefferson, Daniel F. Robinson
wiley +1 more source
DETERMINATION OF DARK MATTER TYPE BY X-RAY SOURCES STATISTICS
Odessa Astronomical Publications, 2014 The current cosmological model includes cold dark matter, which consists of massive nonrelativistic particles. There are also some observational and theoretical evidences for warm dark matter.
A.V. Tugay
doaj +1 more source
Review of asteroid, meteor, and meteorite‐type links
Meteoritics &Planetary Science, EarlyView.Abstract With the goal to determine the origin of our meteorites in the asteroid belt, video and photographic observations of meteors have now tracked 75 meteorite falls. Six years ago, there were just hints that different meteorite types arrived on different orbits, but now, the number of orbits (N) is high enough for distinct patterns to emerge.
Peter Jenniskens +1 more
wiley +1 more source
The evolution of groups and clusters [PDF]
arXiv, 1999 Using high resolution N-body simulations we have studied the formation and evolution of clusters and groups in a LCDM cosmological model. Groups of galaxies have been formed already before z=4. The total number of small bound systems and the total number of galaxies in these small systems rapidly decreases after z=1.5. The fraction of isolated galaxies
arxiv