Results 61 to 70 of about 22,702,715 (393)
Population Ecology, EarlyView.Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda +5 more
wiley +1 more source
The complex planetary synchronization structure of the solar system
, 2014 The complex planetary synchronization structure of the solar system, which since Pythagoras of Samos (ca. 570-495 BC) is known as the music of the spheres, is briefly reviewed from the Renaissance up to contemporary research.
Scafetta, Nicola
core +1 more source
A search for magnetic fields on central stars in planetary nebulae [PDF]
, 2014 One of the possible mechanisms responsible for the panoply of shapes in planetary nebulae is the presence of magnetic fields that drive the ejection of ionized material during the proto-planetary nebula phase. Therefore, detecting magnetic fields in such
Corradi, R. L. M. +4 more
core +1 more source
A planetary system with an escaping Mars [PDF]
Astronomische Nachrichten, 2007 AbstractThe chaotic behaviour of the motion of the planets in our Solar System is well established. In this work to model a hypothetical extrasolar planetary system our Solar System was modified in such a way that we replaced the Earth by a more massive planet and let the other planets and all the orbital elements unchanged.
Suli, A, Dvorak, R
openaire +6 more sources
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
Effect of pore structure on methane adsorption characteristics in tectonically deformed coals
Frontiers in Earth ScienceThe regulation of pore structure on methane adsorption and free state in tectonically deformed coals directly affects the efficiency of coalbed methane extraction and coal mine safety.
Peng Wang +7 more
doaj +1 more source
Resonant periodic orbits in the exoplanetary systems
, 2013 The planetary dynamics of $4/3$, $3/2$, $5/2$, $3/1$ and $4/1$ mean motion resonances is studied by using the model of the general three body problem in a rotating frame and by determining families of periodic orbits for each resonance.
Antoniadou, K. I., Voyatzis, G.
core +1 more source
Dynamical Measurements of the Interior Structure of Exoplanets [PDF]
, 2013 Giant gaseous planets often reside on orbits in sufficient proximity to their host stars for the planetary quadrupole gravitational field to become non-negligible. In presence of an additional planetary companion, a precise characterization of the system'
Batygin, Konstantin, Becker, Juliette C.
core +3 more sources
A dynamically-packed planetary system around GJ 667C with three super-Earths in its habitable zone [PDF]
, 2013 Guillen Anglada-Escude, et al, 'A dynamically-packed planetary system around GJ 667J with three super-Earths in its habitable zone', A&A, Vol. 556, A126, first published online 7 August 2013.
G. Anglada-Escud'e +10 more
semanticscholar +1 more source
Forming different planetary systems [PDF]
Research in Astronomy and Astrophysics, 2012 27 pages, 2 figures, 1 table, published in "Research in Astron.
Ji-Lin Zhou +4 more
openaire +3 more sources