Results 1 to 10 of about 226,916 (232)
Pterosaur melanosomes support signalling functions for early feathers
Nature, 2022 Remarkably well-preserved soft tissues in Mesozoic fossils have yielded substantial insights into the evolution of feathers1. New evidence of branched feathers in pterosaurs suggests that feathers originated in the avemetatarsalian ancestor of pterosaurs
A. Cincotta +10 more
semanticscholar +1 more source
Isolation of Bacillus sp. A5.3 Strain with Keratinolytic Activity
Biology, 2022 Environmental safety and economic factors necessitate a search for new ways of processing poultry farm feathers, which are 90% β-keratin and can be used as a cheap source of amino acids and peptones.
Saniya Aktayeva +6 more
doaj +1 more source
Animals, 2021 Simple Summary Animals adopt several strategies to regulate their body temperature by promoting heat loss or gain in hot and cold environments, respectively. This mechanism of heat loss or production is performed in thermal windows. A thermal window is a
D. Mota-Rojas +11 more
semanticscholar +1 more source
Heritage Science, 2022 A dual-wavelength Q-switched Nd:YAG laser emitting at 1064 nm and 532 nm and an Er:YAG laser were tested on a range of feathers containing melanin, carotenoids and psittacofulvins.
Moira Bertasa, Capucine Korenberg
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PLUMED 2: New feathers for an old bird [PDF]
Computer Physics Communications, 2013 Enhancing sampling and analyzing simulations are central issues in molecular simulation. Recently, we introduced PLUMED, an open-source plug-in that provides some of the most popular molecular dynamics (MD) codes with implementations of a variety of ...
G. A. Tribello +4 more
semanticscholar +1 more source
Microorganisms, 2023 In this study, we describe the characterization of three efficient chicken feather-degrading Streptomyces bacteria isolated from honeybee samples and assess the impact of their co-cultivation on this activity and antistaphylococcal activity. Streptomyces
Diego Martín-González +2 more
doaj +1 more source
Methods and Applications in Trapped Charge Dating
Methods and Protocols, 2020 Trapped charge dating is a commonly used chronological tool in Earth Sciences and Archaeology. The two principle methods are luminescence dating and electron spin resonance.
James K. Feathers
doaj +1 more source
Age features and reference intervals for the concentrations of some essential and toxic elements in laying hens [PDF]
Veterinary World, 2022 Background and Aim: Micronutrient imbalances pose a severe threat to the health and productivity of livestock and poultry. In this regard, a further stage in feeding science development will control and optimize the intake of mineral substances ...
Svyatoslav Lebedev +2 more
doaj +1 more source
Soft biohybrid morphing wings with feathers underactuated by wrist and finger motion
Science Robotics, 2020 A soft biohybrid aerial robot with underactuated feathers shows how birds can steer by morphing their wings with wrists and fingers. Since the Wright Flyer, engineers have strived to develop flying machines with morphing wings that can control flight as ...
Eric Chang +3 more
semanticscholar +1 more source
Journal of Applied Poultry Research, 2020 SUMMARY: Physiological stress is known to promote economic losses by causing immunosuppression. Various factors induce stress, including non-optimal management and infection with various pathogens. The concentration of the stress hormone, corticosterone,
I. Davidson +6 more
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