Results 41 to 50 of about 706,046 (321)

Mass loss by a scalar charge in an expanding universe [PDF]

open access: yes, 2002
We study the phenomenon of mass loss by a scalar charge -- a point particle that acts a source for a noninteracting scalar field -- in an expanding universe.
A.S. Eddington   +13 more
core   +2 more sources

Evaluation of the relative contribution of meteorological and oceanic forces to the drift of ice islands offshore Newfoundland

open access: yesJournal of Glaciology, 2020
On 29 April 2015, four beacons were deployed onto an ice island in the Strait of Belle Isle to record positional data. The ice island later broke up into many fragments, four of which were tracked by the beacons.
Reza Zeinali Torbati   +3 more
doaj   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

open access: yesPopulation Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

Ideberg type III glenoid fractures are caused by indirect force: A report of four cases

open access: yesTrauma Case Reports, 2020
Ideberg type III glenoid fractures are relatively rare, and the mechanisms of injury and treatment strategies remain controversial. We reviewed the fracture patterns and final radiological findings in four cases.
Matsugaki Toru   +2 more
doaj   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Effect of the number of abutments on biomechanics of Branemark prosthesis with straight and tilted distal implants

open access: yesJournal of Applied Oral Science, 2010
OBJECTIVE: This study aimed to evaluate the bending moments, and compressive and tensile forces in implant-supported prostheses with three, four or five abutments.
Marcos Michelon Naconecy   +4 more
doaj   +1 more source

The Gluonic Field of a Heavy Quark in Conformal Field Theories at Strong Coupling

open access: yes, 2011
We determine the gluonic field configuration sourced by a heavy quark undergoing arbitrary motion in N=4 super-Yang-Mills at strong coupling and large number of colors.
A Guijosa   +68 more
core   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Unified field equations coupling four forces and principle of interaction dynamics

open access: yesDiscrete & Continuous Dynamical Systems - A, 2015
revision after taking consideration of referee's ...
Shouhong Wang, Tian Ma
openaire   +4 more sources

A Conceptual Shift to Rectify a Defect in the Lorentz-Dirac Equation [PDF]

open access: yes, 2013
In his analysis of the Classical Theory of Radiating Electrons, Dirac (1938) draws attention to the characteristic instability of solutions to the third order equation of motion.
Oliver, M. A.
core  

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