Results 31 to 40 of about 1,274,653 (285)

Disruptive coloration and background pattern matching

open access: yesNature, 2005
Effective camouflage renders a target indistinguishable from irrelevant background objects. Two interrelated but logically distinct mechanisms for this are background pattern matching (crypsis) and disruptive coloration: in the former, the animal's colours are a random sample of the background; in the latter, bold contrasting colours on the animal's ...
Cuthill, IC   +5 more
openaire   +4 more sources

Transparency in the Ophthalmology Residency Match: Background, Study, and Implications [PDF]

open access: yesCureus, 2021
Background Medical students are applying to dramatically more ophthalmology residency programs than in the past, causing an increased administrative burden for programs and financial harm to students. This study considers the background of this situation and looks at how a lack of transparency surrounding potential residency match filters contributes ...
Markle, Jonathan C   +15 more
openaire   +2 more sources

Does the use of nest materials in a ground-nesting bird result from a compromise between the risk of egg overheating and camouflage?

open access: yesBiology Open, 2019
Many studies addressing the use of nest materials by animals have focused on only one factor to explain its function. However, the consideration of more than one factor could explain the apparently maladaptive choice of nest materials that make nests ...
Jesús Gómez   +5 more
doaj   +1 more source

Emulsion sheet doublets as interface trackers for the OPERA experiment [PDF]

open access: yes, 2008
New methods for efficient and unambiguous interconnection between electronic counters and target units based on nuclear photographic emulsion films have been developed.
  +192 more
core   +4 more sources

Can Bohmian Mechanics Be Made Background Independent? [PDF]

open access: yes, 2015
The paper presents an inquiry into the question regarding the compatibility of Bohmian mechanics, intended as a non-local theory of moving point-like particles, with background independence.
Vassallo, Antonio
core   +2 more sources

3D Reconstruction Cost Function Algorithm Based on Stereo Matching in the Background of Digital Museums

open access: yesIEEE Access, 2023
Stereo matching plays an important role in 3D reconstruction in the context of digital museums. At present, it has problems such as occlusion, weak texture, and discontinuous disparity, which restrict the development of binocular vision.
Peng Peng, Jun Han
doaj   +1 more source

Exact isotropic cosmologies with local fractal number counts [PDF]

open access: yes, 1998
We construct an exact relativistic cosmology in which an inhomogeneous but isotropic local region has fractal number counts and matches to a homogeneous background at a scale of the order of $10^2$ Mpc.
Abdalla E   +18 more
core   +2 more sources

Post-Fire Predation Risk in the Black Cicada Tibicina quadrisignata

open access: yesFire
The background modification of ecosystems affected by fire can cause black or dark colours in animals to become adaptive, providing better protection against visually oriented predators.
Pere Pons   +3 more
doaj   +1 more source

Lightweight Neural Network for Centroid Detection of Weak, Small Infrared Targets via Background Matching in Complex Scenes

open access: yesRemote Sensing
In applications such as aerial object interception and ballistic estimation, it is crucial to precisely detect the centroid position of the target rather than to merely identify the position of the target bounding box or segment all pixels belonging to ...
Xiangdong Xu   +5 more
doaj   +1 more source

Cauchy-characteristic Evolution of Einstein-Klein-Gordon Systems: The Black Hole Regime

open access: yes, 1996
The Cauchy+characteristic matching (CCM) problem for the scalar wave equation is investigated in the background geometry of a Schwarzschild black hole. Previously reported work developed the CCM framework for the coupled Einstein-Klein-Gordon system of ...
B. S. DeWitt   +16 more
core   +1 more source

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