Results 71 to 80 of about 45,134 (236)

How to exploit the potential of different compounds from chicken by-products [PDF]

open access: yesCiência Rural
: Adding value to daily by-products is a challenge in the chicken meat industry, since most are used to produce flour and animal feed. These by-products are rich in proteins, prompting research on the potential of feathers, feet, fat, bones, liver ...
Priscila Nehring   +7 more
doaj   +2 more sources

Responses of Antarctic seabird populations to past climate change

open access: yesEcography, EarlyView.
Higher‐order predators such as Antarctic seabirds serve as ecological indicators of environmental change and provide a crucial trophic link between marine and terrestrial ecosystems. Despite their prevalence and significance in the Antarctic ecosystem, there is a lack of understanding of the impacts of major regime shifts in paleoclimate on flighted ...
Elize Y. X. Ng   +6 more
wiley   +1 more source

Effect of Soaking Time Using Petroleum Ether on the Feather Morphology of Native Chicken

open access: yesIndonesian Green Technology Journal
The process of extracting keratin from chicken feathers needs to be treated initially to remove some of the compounds that can reduce the extraction results. Petroleum ether can serve as a degreaser in the initial process of washing.
Darjito Darjito   +3 more
doaj   +1 more source

Evolution of breeding plumages in birds: A multiple‐step pathway to seasonal dichromatism in New World warblers (Aves: Parulidae)

open access: yesEcology and Evolution, 2020
Many species of birds show distinctive seasonal breeding and nonbreeding plumages. A number of hypotheses have been proposed for the evolution of this seasonal dichromatism, specifically related to the idea that birds may experience variable levels of ...
Ryan S. Terrill   +2 more
doaj   +1 more source

Crop of Herman Moore From the Tribe of Many Feathers Group Photo

open access: yes, 1972
Black and white photo crop of page 418 of the BYU Banyan Year book Herman Moore from the Group Photo of Members of the Tribe of Many Feathers Native American BYU ...
Ken Christensen
core  

Global distribution of avian plumage coloration and patterning: the relative influence of climate, ecology, and sexual selection

open access: yesEcography, EarlyView.
Animal coloration exhibits substantial biogeographic variation, reflecting complex adaptations to both abiotic and biotic environments. Although the evolutionary mechanisms underlying avian plumage coloration have been widely studied, geographic variation in plumage patterning has received far less attention.
Yuqing Han   +8 more
wiley   +1 more source

DEA 6760 Course Syllabus - Spring 09

open access: yes, 2009
DEA 6760, University Design: Ergonomics and Accessibility, Course Syllabus by Instructor David Feathers, Spring ...
Feathers, David
core   +4 more sources

Fire‐Safe Polymeric Insulation Foams for Energy‐Efficient and Low‐Carbon Buildings

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review systematically summarizes recent advances in fire‐safe polymeric insulation foams, emphasizing the balance among flame retardancy, thermal insulation, mechanical reliability, and long‐term durability. By linking material‐level thermophysical properties with building cooling‐energy demand and operational carbon emissions, it establishes a ...
Qinhe Guo   +10 more
wiley   +1 more source

Discordancy of two common methods of measuring feather hydrophobicity

open access: yesJournal of Avian Biology
Feather structure contributes greatly to a birds' ability to repel water, which is essential for thermoregulation and energy use. Water repellency of feathers has traditionally been inferred by measuring a structural index based on the distance between ...
Sarah C. Deckel, Chad L. Seewagen
doaj   +1 more source

An exploration of isotopic variability in feathers and claws of Lesser Kestrel Falco naumanni chicks from southern Sicily

open access: yesAvocetta, 2016
Stable isotopes are nowadays commonly used in the study of many key features of avian ecology. However, the adequate choice of what isotopic ratio to consider and what tissues to sample for assessing specific questions may be tricky.
Michelangelo Morganti   +3 more
doaj   +1 more source

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