Results 101 to 110 of about 1,645,813 (249)

Solution of the dark matter riddle within standard model physics: from black holes, galaxies and clusters to cosmology

open access: yesFrontiers in Astronomy and Space Sciences
It is postulated that the energy density of the (quantum) vacuum acts firstly as dark energy and secondly as a part of dark matter. Assisted by electric fields arising from a small charge mismatch in the cosmic plasma, it can condense on mass ...
Theodorus Maria Nieuwenhuizen
doaj   +1 more source

Towards AMR Simulations of Galaxy Formation [PDF]

open access: yes, 2010
Numerical simulations present a fundamental building block of our modern theoretical understanding of the Universe. As such the work in this thesis is primarily concerned with understanding fundamental differences that lie between the different ...
MITCHELL, NIGEL,LEWIS   +1 more
core  

FaceIt: Real‐Time On‐Device Identity‐Preserving Portrait Animation

open access: yesComputer Graphics Forum, EarlyView.
A real‐time, on‐device algorithm for animating a single portrait image using detailed facial expressions and motions from a driving video achieving visual quality that can outperform even techniques with significantly higher computational overhead. Abstract Recently, significant progress has been made in generating expressive and temporally coherent ...
M. Dvorožňák   +7 more
wiley   +1 more source

How Robust Is the Cosmic Distance with the Tip of Red Giant Branch against Stellar Population Variations?

open access: yesThe Astrophysical Journal
The tip of the red giant branch (TRGB) provides a key standard candle for extragalactic distance measurements and for refining the Hubble constant. We test its robustness by quantifying how metallicity, α -element enhancement, age, and initial helium ...
Chul Chung   +12 more
doaj   +1 more source

Modular training resources for bioimage analysis

open access: yesJournal of Microscopy, EarlyView.
Abstract Modern microscopy enables us to measure structural and dynamical properties of many biological processes and is therefore an indispensable research tool. However, the amount and complexity of the produced imaging data is steadily increasing.
Christian Tischer   +17 more
wiley   +1 more source

GloBIAS survey results – An insight into the global bioimage analysis community

open access: yesJournal of Microscopy, EarlyView.
Abstract There is a global need for bioimage analysis (BIA) as advances in life sciences increasingly rely on cutting‐edge imaging systems that have dramatically expanded the complexity and dimensionality of biological images. Turning these data into scientific discoveries requires scientists with effective data management skills and knowledge of state‐
Laura R. de la Ballina   +17 more
wiley   +1 more source

Origin and Evolution of Large-scale Magnetic Fields [PDF]

open access: yes, 2015
Magnetic elds are ubiquitous at all scales in the Universe and have been observed in galaxies and clusters of galaxies via observations of di use radio emission and Faraday Rotation Measures.
Barnes, DJ
core  

Interventions to Reduce Loneliness in Informal Caregivers of People With Dementia: A Systematic Review

open access: yesJournal of Clinical Nursing, EarlyView.
ABSTRACT Aim To summarize the current evidence on reducing loneliness among informal caregivers of people with dementia, such as family members or friends. Design A systematic review. Methods The methodological quality was evaluated using the revised Cochrane risk‐of‐bias tool for randomized controlled trials and the revised JBI critical appraisal ...
Tianxue Hou   +5 more
wiley   +1 more source

Optical polarimetry studies of Seyfert galaxies [PDF]

open access: yes, 1999
Optical imaging polarimetry has been performed on seven nearby Seyfert galaxies, three with face-on and four with edge-on host galaxies of various morphological classifications.
Felton, Michelle Ann
core  

The 40K‐K dating system: 1. Improving data interpretation using new model calculations

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The 40K‐K cosmic‐ray exposure (CRE) dating system offers a promising method for determining exposure ages of iron meteorites by combining the radioactive cosmogenic 40K with the stable cosmogenic isotopes 39K and 41K. However, earlier applications relied on semi‐empirical production models and inconsistent analytical data sets, limiting their ...
Farshid Nozarian   +2 more
wiley   +1 more source

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