Results 71 to 80 of about 19,383 (290)
A case of partial leucism in the American Barn Owl (Tyto furcata) (Temminck, 1827), from Buenos Aires province, Argentina [PDF]
, 2014 The diverse colorations of a birds’ plumage are due to either structural colors or pigments that are synthesized in specialized cells or incorporated through the diet.
Chiale, Maria Cecilia +1 more
core
Automatic Lesser Kestrel’s Gender Identification using Video Processing [PDF]
, 2017 Traditionally, animal surveillance is a common task for biologists. However, this task is often accompanied by the inspection of huge amounts of video. In this sense, this paper proposes an automatic video processing algorithm to identify the gender of
Larios Marín, Diego Francisco +5 more
core +1 more source
Advanced Science, EarlyView.A Janus‐like bio‐inspired strategy is proposed for integrally 3D‐printed bimetallic metamaterials. Inspired by shell bilayers, a heat‐resistant AlSiFeMnNiMg alloy and a SiC‐reinforced AlSi10Mg with different SiC volume fractions are arranged as an architected pair.
Zhicheng Dong +5 more
wiley +1 more source
Visual signal evolution along complementary color axes in four bird lineages
Biology Open, 2020 Avian color patterns function in varied behavioral contexts, most being produced by only a handful of mechanisms including feather nanostructures and pigments.
Anand Krishnan +2 more
doaj +1 more source
Identification of polymorphisms in and genes and their associations with plumage colors in Asian duck breeds [PDF]
Asian-Australasian Journal of Animal Sciences, 2018 Objective The aim of this study was to investigate the effect of single nucleotide polymorphisms (SNPs) of the melanogenesis associated transcription factor (MITF) and dopachrome tautomerase (DCT) genes on plumage coloration in Asian native duck breeds ...
Hasina Sultana +6 more
doaj +1 more source
A phylogeny of the tinamous (Aves: Palaeognathiformes) based on integumentary characters [PDF]
, 2002 A cladistic analysis of the tinamous, including the 47 currently recognized species and some distinct subspecies, was conducted based on 80 integumentary characters from adult and natal plumage, ramphoteca (corneum sheath of bill), and podoteca (horny ...
Bertelli, Sara Beatriz +2 more
core +1 more source
Pancake Lenses through Curved Lamination for Compact Virtual Reality
Advanced Intelligent Systems, EarlyView.This article presents an ultrathin VR optical system based on a 1.35 in. microdisplay, leveraging curved lamination technology. Compared to mainstream solutions, the proposed design demonstrates superior compactness (volume compression by 12%) and enhanced optical performance.
Jiaping Sun +5 more
wiley +1 more source
Advanced Intelligent Systems, EarlyView.Natural fliers achieve remarkable aerial performance through diverse wing neuromechanical systems integrating actuation, sensing, and control. This study synthesizes neuromechanical architectures in insects and hummingbirds, identifying two key functional types‐Dual Neural‐Mechanical Oscillator and Neurally‐modulated Mechanical Oscillator‐ and ...
Suyash Agrawal +4 more
wiley +1 more source
Resolving the Raven Paradox: Simple Random Sampling, Stratified Random Sampling, and Inference to the Best Explanation [PDF]
, 2021 Simple random sampling resolutions of the raven paradox relevantly diverge from scientific practice. We develop a stratified random sampling model, yielding a better fit and apparently rehabilitating simple random sampling as a legitimate idealization.
Ward, Barry
core +1 more source
Growth Rate and Plumage Color in Chickens
Poultry Science, 1956 Abstract THE I-gene, an inhibitor of black (melanin) color, is currently being used in the development of the popular “dominant white” crossbreds for broiler production. Since none of the competitive meat strains posessed this gene, poultry breeders have introduced it into sire lines by crossbreeding.
R. George Jaap, John F. Grimes
openaire +1 more source