Results 41 to 50 of about 46,074 (345)

Variation in wing and tail moult intensity in white‐chinned petrels

Journal of Avian Biology
The cost of moult is substantial, and the timing and intensity of flight feather moult can influence survival and fitness, especially in large, long‐winged species such as many seabirds. We explore variation in wing and tail moult in > 2400 white‐chinned
Oluwadunsin E. Adekola, Peter G. Ryan
doaj   +1 more source

Altitude, latitude and climate zone as determinants of mountain hare (Lepus timidus) coat colour change

Ecology and Evolution, 2023
Local adaptation to annually changing environments has evolved in numerous species. Seasonal coat colour change is an adaptation that has evolved in multiple mammal and bird species occupying areas that experience seasonal snow cover.
Allan W. Stokes, Tim R. Hofmeester, Neri H. Thorsen, John Odden, John D. C. Linnell, Simen Pedersen   +5 more
doaj   +1 more source

Precise Control of Drug Release in Machine Learning‐Designed Antibody‐Eluting Implants for Postoperative Scarring Inhibition in Glaucoma

Advanced Healthcare Materials, EarlyView.
We developed a micro‐sized, biocompatible implant for postoperative sustained delivery of anti‐fibrotic antibodies in glaucoma surgery. Machine learning‐guided optimization of polymer composition, implant geometry, and porosity enabled precise control of drug release.
Mengqi Qin, Wenbing Jiang, Kai Xin Thong, Zeynep Ulker, Brihitejas Patel, Cynthia Yu‐Wai‐Man   +5 more
wiley   +1 more source

From partial to complete: Wing- and tail-feather moult sequence and intensity depend on species, life-cycle stage, and moult completeness in passerines

Avian Research
Passerines moult during various life-cycle stages. Some of these moults involve the retention of a variable quantity of wing and tail feathers. This prompts the question whether these partial moults are just arrested complete moults or follow different ...
Santi Guallar
doaj   +1 more source

Postlarval development of Halicarcinus planatus females (Crustacea, Decapoda, Hymenosomatidae) in the estuary of the Deseado River, Argentina

Scientia Marina, 2008
This study analyses morphology and morphometric growth changes of Halicarcinus planatus females until their terminal moult, and characterises new juvenile stages.
Julio H. Vinuesa, Lucrecia Ferrari
doaj   +1 more source

Enhancing Magnetic Hyperthermia at the Cell Membrane by Anchoring 92R‐Functionalized Magnetic Nanoparticles to Low‐Endocytic CCR9 Surface Receptors

Advanced Healthcare Materials, EarlyView.
We present a strategy to enhance magnetic hyperthermia therapy by modulating nanoparticle–cell interactions. Antibody‐functionalized magnetic nanoparticles targeting the low‐internalizing CCR9 receptor enable spatially controlled membrane anchoring, reducing aggregation and maximizing heat generation under alternating magnetic fields.
David Egea‐Benavente, Isabel Corraliza‐Gorjón, Thomas S. van Zanten, María del Puerto Morales, Leonor Kremer, Domingo F. Barber   +5 more
wiley   +1 more source

Effects of age and weather during moult on mountain bluebird Sialia currucoides structural colouration

Journal of Avian Biology, 2021
Birds exhibit a vast array of colours and ornaments and while much work has focused on understanding the function and evolution of carotenoid‐based colours (red, orange, yellow), structural colouration (blue, green, purple, iridescent) can also play a ...
Genevieve M. Ward, Sean M. Mahoney, Stephen Joly, Matthew W. Reudink   +3 more
doaj   +1 more source

Seasonal but not sex-biased gene expression of the carotenoid ketolase, CYP2J19, in the sexually dichromatic southern red bishop (Euplectes orix)

Royal Society Open Science, 2022
Intense red colours in birds are often owing to ketocarotenoids (KCs). In many land birds, KCs are oxidized from dietary yellow precursors, presumably by the avian carotenoid ketolase CYP2J19, the regulation and constraints of which have important ...
Willow R. Lindsay, Rute Mendonça, Mathilda Waleij Slight, Maria Prager, Mats X. Andersson, Nicholas I. Mundy, Staffan Andersson   +6 more
doaj   +1 more source

Oxygen and ROS Delivery for Infected Wound Healing and Future Prospects

Advanced Healthcare Materials, EarlyView.
Bacterial infection is a major driver of delayed wound healing and postsurgical readmissions; with rising antibiotic resistance, solid peroxide–releasing biomaterials offer sustained delivery of ROS/O2 for antimicrobial control and microenvironmental modulation.
Ayden Watt, Chably Rachella, Charlotte Jaloux, Joshua Vorstenbosch, Adam Hart, Michael Tanzer, Geraldine Merle, Jake Barralet   +7 more
wiley   +1 more source

Moult and age determination criteria of the monk parakeet (Myiopsitta monachus)

Animal Biodiversity and Conservation
Age determination of the invasive monk parakeet Myiopsitta monachus has been hampered by its juvenile plumage showing only subtle differences from subsequent plumages, and little is known about its moult.
S. Guallar, A. Manzanilla, M. Illa, L. Cardador, J. Navarro, J. Baucells, J. C. Senar   +6 more
doaj   +1 more source