Results 111 to 120 of about 225,630 (329)

Archaeological Investigations at the Pine Snake Site, an Allen Phase Settlement on Flat Creek in Northwestern Cherokee County, Texas [PDF]

, 2013
The Pine Snake site is a recently discovered late 17th to early 18th century Caddo Indian archaeological site located on private land in the northwestern part of Cherokee County, Texas, in the valley of a westward flowing tributary to the Neches River ...
Feathers, James, Nelson, Bo, Perttula, Timothy K., Walters, Mark   +3 more
core   +1 more source

Bridging home, school and community to address educational inequality: Supporting educational trajectories through community bridge work

British Educational Research Journal, EarlyView.
Abstract This paper explores the role of community stakeholders in supporting the educational trajectories of students experiencing socio‐economic disadvantage in the Irish context. Building on international and national policy debates, the study examines how community‐based organisations, statutory services and outreach initiatives work alongside ...
Aoife Joy Keogh, Deirdre McGillicuddy
wiley   +1 more source

Marine silicon for biomedical sustainability

BMEMat, EarlyView.
Schematic illustrating marine silicon for biomedical engineering. Abstract Despite momentous divergence from oceanic origin, human beings and marine organisms exhibit elemental homology through silicon utilization. Notably, silicon serves as a critical constituent in multiple biomedical processes.
Yahui Han, Zhibo Yang, Wei Xia, Chengtie Wu   +3 more
wiley   +1 more source

Discordancy of two common methods of measuring feather hydrophobicity

Journal 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

Homology and Potential Cellular and Molecular Mechanisms for the Development of Unique Feather Morphologies in Early Birds

Geosciences, 2012
At least two lineages of Mesozoic birds are known to have possessed a distinct feather morphotype for which there is no neornithine (modern) equivalent. The early stepwise evolution of apparently modern feathers occurred within Maniraptora, basal to the ...
David J. Bottjer, Hailu You, Cheng-ming Chuong, Luis M. Chiappe, Jingmai K. O’Connor   +4 more
doaj   +1 more source

High Diversity among Feather-Degrading Bacteria from a Dry Meadow Soil [PDF]

, 2018
The aim of this study was to determine the diversity of cultivable bacteria able to degrade feathers and present in soil under temperate climate. We obtained 33 isolates from soil samples, which clustered in 13 ARDRA groups.
Broennimann, O., Febbraro, I., Heeb, P., Lucas, F.S.   +3 more
core  

The flexible, the stereotyped and the in‐between: putting together the combinatory tool use origins hypothesis

Biological Reviews, EarlyView.
ABSTRACT Tool use research has long made the distinction between tool using that is considered learned and flexible, and that which appears to be instinctive and stereotyped. However, animals with an inherited tool use specialisation can exhibit flexibility, while tool use that is spontaneously innovated can be limited in its expression and facilitated
Jennifer A. D. Colbourne, Alice M. I. Auersperg   +1 more
wiley   +1 more source

Feathers in nest boxes do not prevent or delay nesting by Eastern Bluebirds ( Sialia sialis ), Tree Swallows ( Tachycineta bicolor ), or Carolina Chickadees ( Poecile carolinensis )

Journal of Field Ornithology
Many species of birds incorporate feathers into their cavity nests. The Fear of Feathers Hypothesis proposes that a major benefit of incorporating feathers into cavity nests is to trick other birds into thinking that a predation event occurred in the ...
Mark T Stanback
doaj   +1 more source

New evidence of feathers in the Crato Formation supporting a reappraisal on the presence of Aves

Anais da Academia Brasileira de Ciências, 2011
The preservation of delicate structures such as feathers is very rare in the paleontological record, due to the fragility of their components. Fossil feathers have been reported from approximately 50 deposits around the world, from the Late Jurassic to ...
Juliana M. Sayão, Antonio A.F. Saraiva, Angelica M.K. Uejima   +2 more
doaj   +1 more source

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

Biological Reviews, EarlyView.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan, Case Vincent Miller, Michael Pittman   +2 more
wiley   +1 more source