Results 51 to 60 of about 408,802 (177)

Analysis of close encounters with Ganymede and Callisto using a genetic n-body algorithm

open access: yes, 2018
In this work we describe a genetic algorithm which is used in order to study orbits of minor bodies in the frames of close encounters. We find that the algorithm in combination with standard orbital numerical integrators can be used as a good proxy for ...
Galiazzo, Mattia A.   +2 more
core   +2 more sources

First steps to define murine amniotic fluid stem cell microenvironment [PDF]

open access: yes, 2016
Stem cell niche refers to the microenvironment where stem cells reside in living organisms. Several elements define the niche and regulate stem cell characteristics, such as stromal support cells, gap junctions, soluble factors, extracellular matrix ...
Bertin, Enrica   +11 more
core   +3 more sources

Reconfigurations ontologiques dans les nouvelles constitutions politiques andines

open access: yesSwiss Journal of Sociocultural Anthropology, 2015
In recent years, Bolivia and Ecuador have been the scene of radical ontological turns induced by processes of building new political constitutions. For the fi rst time, collectives with animist, analogist and naturalist modes of identifi cation had to ...
Diego Landivar, Émilie Ramillien
doaj   +1 more source

Maximum power Point Tracking control of thermoelectric generation system using extremum seeking control method [PDF]

open access: yes, 2017
This study proposes and implements maximum power Point Tracking (MPPT) control on thermoelectric generation system using extremum seeking control (ESC) algorithm. The MPPT is applied to guarantee maximum power extraction from the TEG system. The work has
Ahmed   +8 more
core   +2 more sources

Environmental Sound Classification with Parallel Temporal-spectral Attention

open access: yes, 2020
Convolutional neural networks (CNN) are one of the best-performing neural network architectures for environmental sound classification (ESC). Recently, temporal attention mechanisms have been used in CNN to capture the useful information from the ...
Chong, Dading   +3 more
core   +1 more source

The formation of Haumea and its family via binary merging

open access: yesNature Communications, 2022
Formation of the Haumea family, the only collisional group of icy bodies in the Kuiper Belt, is debated. Here, the authors show that Haumea family can be explained as a results of binary merging near the end of Neptune’s orbital migration.
Benjamin Proudfoot, Darin Ragozzine
doaj   +1 more source

The Keck Lyman Continuum Spectroscopic Survey (KLCS): The Emergent Ionizing Spectrum of Galaxies at $z\sim3$ [PDF]

open access: yes, 2018
We present results of a deep spectroscopic survey designed to quantify the statistics of the escape of ionizing photons from star-forming galaxies at z~3.
Bogosavljevic, M.   +7 more
core   +3 more sources

Promising approaches to optimize the biological properties of the antimicrobial peptide esculentin-1a(1-21)NH2. amino acids substitution and conjugation to nanoparticles [PDF]

open access: yes, 2017
Antimicrobial peptides (AMPs) represent an interesting class of molecules with expanding biological properties which make them a viable alternative for the development of future antibiotic drugs.
Cacciafesta, Mauro   +3 more
core   +2 more sources

Actomyosin ATPase activity of skeletal muscles and the markers of tissue damage in the blood of rats under prolonged chronic alcoholization [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2014
The activity of creatine kinase and indices of lipid metabolism in the blood and also actomyosin ATPase activity of skeletal muscles of rats under chronic 8-month alcohol abuse were investigated.
Yu. V. Tseyslyer   +3 more
doaj   +1 more source

Self-Lensing By Binaries [PDF]

open access: yes, 1994
Lensing of one member of a binary by its companion is studied for several classes of binaries. For binaries in which at least one member is an ordinary (non-compact) star, the optical depths to lensing is extremely low, $\tau\lsim v_\esc^4/c^4\sim 10 ...
Gould, Andrew
core   +2 more sources

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