Results 31 to 40 of about 38,785 (309)

The first case of bilateral gynandromorphic plumage type in the bearded reedling Panurus biarmicus

open access: yesThe European Zoological Journal, 2023
Bilateral gynandromorphism is a condition in which an individual has both male and female phenotypes distributed symmetrically on the body. We describe the first case of a likely gynandromorphic bearded tit, which was trapped in Poland.
J. Stępniewski, A. Surmacki
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Mardivirus Infection and Persistence in Feathers of a Chicken Model Harboring a Local Autoimmune Response

open access: yesMicroorganisms, 2020
Herpesvirus of turkey (HVT) is commonly used as a vaccine to protect chickens against Marek’s disease. Following vaccination, HVT infects feathers where it can be detected in all chicken lines examined. Unlike the parental Brown line (BL), Smyth line (SL)
Gisela F. Erf   +3 more
doaj   +1 more source

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

Effect of diet on the capacity to remove mercury from the body of a penguin (Spheniscus demersus) living in the ZOO

open access: yesE3S Web of Conferences, 2013
Birds due to its position in the trophic chain are good monitors of the marine environment in terms of mercury contamination. For the proper interpretation of results it is necessary to know both the processes of accumulation of this metal in their ...
Falkowska L.   +5 more
doaj   +1 more source

Exposure of Magnificent Frigatebird (Fregata magnificens) and Brown Booby (Sula leucogaster) to Metals and Selenium in Rio de Janeiro State (Brazil) Coastal Waters

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
This study used feathers of brown booby (Sula leucogaster) and magnificent frigatebird (Fregata magnificens) from Cagarras Archipelago, an area under strong anthropogenic influence, for evaluating the exposure of these seabirds to Cd, Sn, Mn, Cu and Se ...
Janeide de Assis Padilha   +4 more
doaj   +1 more source

Echinoderm‐Inspired Autonomy for Soft‐Legged Robots

open access: yesAdvanced Robotics Research, EarlyView.
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker   +2 more
wiley   +1 more source

AASLD practice guidance on drug, herbal, and dietary supplement–induced liver injury

open access: yes, 2022
Hepatology, EarlyView.
Robert J. Fontana   +6 more
wiley   +1 more source

Pancake Lenses through Curved Lamination for Compact Virtual Reality

open access: yesAdvanced 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

Precolumbian and Ethnographic Featherwork from the Andes and Amazon in the Metropolitan Museum of Art

open access: yesNuevo mundo - Mundos Nuevos, 2006
Archaeological evidence clearly indicates that brightly colored and intricately patterned textiles were highly regarded in Precolumbian Peru. It also appears that feathered textiles and related objects held a special place within this tradition.
Christine Giuntini
doaj   +1 more source

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