Results 81 to 90 of about 30,791 (345)

Symplectic algorithm for constant-pressure molecular dynamics using a Nose-Poincare thermostat [PDF]

open access: yes, 1999
We present a new algorithm for isothermal-isobaric molecular-dynamics simulation. The method uses an extended Hamiltonian with an Andersen piston combined with the Nos'e-Poincar'e thermostat, recently developed by Bond, Leimkuhler and Laird [J. Comp. Phys., 151, (1999)].
arxiv   +1 more source

On the pal˦ontology of sturgeons [PDF]

open access: yesProceedings of the Geologists' Association, 1889
n ...
openaire   +2 more sources

Critical thermal maxima and hematology for juvenile Atlantic (Acipenser oxyrinchus Mitchill 1815) and shortnose (Acipenser brevirostrum Lesueur, 1818) sturgeons

open access: yes, 2016
Summary The critical thermal maximum (CTmax) and the associated hematological response of juvenile (~145 g, n = 8 for both species) Atlantic Acipenser oxyrinchus and shortnose Acipenser brevirostrum sturgeons acclimated to 15°C were determined using a
M. C. Spear, J. Kieffer
semanticscholar   +1 more source

Distribution and genetic diversity of sturgeons feeding in the marine area of the Danube Delta Biosphere Reserve [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2013
The NW Black Sea basin supports sympatric population of beluga (Huso huso), stellate sturgeon (Acipenser stellatus) and Russian sturgeon (A. gueldenstadetii). These ecologically similar fish exhibit varying life strategies during their extended juvenile
HOLOSTENCO Daniela   +4 more
doaj   +1 more source

Intracytoplasmic sperm injection in sturgeon species: A promising reproductive technology of selected genitors

open access: yesFrontiers in Veterinary Science, 2022
Sturgeons are the most endangered species group and their wild populations continue to decrease. In this study, we apply intracytoplasmic sperm injection (ICSI), an assisted reproductive technology, for the first time in endangered and critically ...
Effrosyni Fatira   +8 more
doaj   +1 more source

Simulating Cardiac Fluid Dynamics in the Human Heart [PDF]

open access: yesarXiv, 2023
Cardiac fluid dynamics fundamentally involves interactions between complex blood flows and the structural deformations of the muscular heart walls and the thin, flexible valve leaflets. There has been longstanding scientific, engineering, and medical interest in creating mathematical models of the heart that capture, explain, and predict these fluid ...
arxiv  

DON STURGEON PARK [PDF]

open access: yesThe Russian Academic journal, 2011
This article examines the miserable situation of destruction and Azov Seas Tsymlyansk in the last half century. Shows the history of the world's first preserved fish prostoranstva and lifestyle of the indigenous population of the Don - the Cossacks, who later became an example of environmental management.
openaire   +2 more sources

Mixed mycobacterial infections in farmed sturgeons

open access: yes, 2015
Based on microbiological and histopathological examinations and DNA sequencing, several outbreaks of mycobacteriosis in the reared sturgeons, including Chinese sturgeon (Acipenser sinensis Gray) and Amur sturgeon (Acipenser schrencki), were identified ...
Defeng Zhang   +6 more
semanticscholar   +1 more source

Void Nucleation, Growth, and Coalescence in Irradiated Metals [PDF]

open access: yes, 2008
A novel computational treatment of dense, stiff, coupled reaction rate equations is introduced to study the nucleation, growth, and possible coalescence of cavities during neutron irradiation of metals. Radiation damage is modeled by the creation of Frenkel pair defects and helium impurity atoms.
arxiv   +1 more source

Hypoxia and Sturgeons: report to the Chesapeake Bay Program Dissolved Oxygen Criteria Team [PDF]

open access: yes, 2001
In this essay, three lines of evidence are developed that sturgeons in the Chesapeake Bay and elsewhere are unusually sensitive to hypoxic conditions: 1.
Niklitschek, Edwin J., Secor, David H.
core  

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