Results 31 to 40 of about 74,533 (314)

Elevational range and timing of breeding in the birds of Ladakh: the effects of body mass, status and diet

open access: yes, 2009
We studied the effects of body mass, status (resident or migratory) and diet on the breeding elevation range and timing of reproduction of the birds in the Trans-Himalayan region of Ladakh, northwestern India.
Yoram, Y.T., Namgail, T.
core   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Constitutive immune function variation across the non‐breeding season in an extreme long‐distance migrant

open access: yesJournal of Avian Biology
Migratory animals often display remarkable adaptations in order to successfully complete their journeys. While there is substantial evidence on immunomodulation during breeding and at stopover sites en route, the immune status of migratory birds upon ...
José O. Valdebenito   +11 more
doaj   +1 more source

Modulation of the hypothalamic-pituitary-adrenal axis of an Arctic-breeding polygynandrous songbird, the Smith's longspur, Calcarius pictus

open access: yes, 2003
To successfully reproduce in the Arctic, birds must modulate their neuroendocrine and behavioural systems. These adjustments include an attenuation of the stress responsiveness of the hypothalamic-pituitary-adrenal (HPA) axis to external stimuli and a ...
Wingfield, John C   +3 more
core   +1 more source

AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing

open access: yesAdvanced Materials, EarlyView.
This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee   +21 more
wiley   +1 more source

Annual dynamics of bird communities in urban parks in Lviv, Ukraine: preliminary ana­lysis of diversity and composition variability

open access: yesБіологічні студії, 2019
Species and numeric composition of bird communities were analyzed in parks of Lviv based on results of monthly censuses on 20 linear transects on eight study plots.
O. Dubovyk
doaj   +1 more source

Aspects of the breeding biology of wading birds (charadrii) on a saltmarsh [PDF]

open access: yes, 1979
Aspects of the breeding biology of Lapwing, Oyster- catcher and Redshank were studied on a dry, cattle-grazed saltmarsh, Rockcliffe Marsh, in Cumbria. The vegetation of the marsh was predominantly graminoid, due to the influence of grazing and trampling ...
Rankin, Graham D.
core  

Effects of set-aside management on birds breeding in lowland Ireland

open access: yes, 2006
Farmland birds have suffered a severe decline in recent years throughout Europe including Ireland. Agricultural intensification is believed to be the main cause and this has led to the introduction of agri-environmental schemes, of which set-aside is a ...
Bracken, Fintan, Bolger, Thomas
core   +1 more source

Designable van der Waals Crystal for Artificial Neuronal Cell Mimicking

open access: yesAdvanced Materials, EarlyView.
Designable van der Waals crystal has been demonstrated for device‐scale neuronal cell mimicking. The structural similarity between ion‐channel in biological membranes and layered vdW lattices is realized with nano‐crystallization via Ar + H2S plasma sulfurization.
Jinhyoung Lee   +23 more
wiley   +1 more source

Molt in Birds Inhabiting a Human-Dominated Habitat

open access: yesHayati Journal of Biosciences, 2017
Molt is one of the biological processes in the life of birds that requires high energy. Therefore, it usually occurs when food is abundant. However, molt and breeding overlap have been recorded in the tropics.
Yeni Aryati Mulyani   +4 more
doaj   +1 more source

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