Results 61 to 70 of about 133,003 (301)

Dental crown morphological variation and heterodonty in carcharhiniform sharks

The Anatomical Record, EarlyView.
Abstract Elasmobranch teeth are highly mineralized structures that constitute the majority of the fossil record for this group. Despite their taxonomic and evolutionary significance, detailed descriptions of dental morphology remain scarce. The order Carcharhiniformes, the most diverse among sharks, comprises 304 valid species that display remarkable ...
Flávia Zanini, Karla D. A. Soares
wiley   +1 more source

First Record of the Ragged-tooth Shark, Odontaspis ferox, off the U.S. Atlantic Coast [PDF]

, 1998
On 11 September 1994, a large shark was captured and later identified as the ragged-tooth shark, Odontaspis ferox (Risso). The shark was captured during routine bottom trawl survey operations onboard the NOAA R/V Albatross IV, approximately 25 n.mi ...
Sheehan, Timothy F.
core  

Cranial anatomy of a Late Cretaceous aspidorhynchid fish (Neopterygii: Aspidorhynchiformes) from Alberta, Canada

The Anatomical Record, EarlyView.
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato, Luke E. Nelson, Joshua A. Doyon, Donald B. Brinkman, Alison M. Murray   +4 more
wiley   +1 more source

Towards a comprehensive 3D dynamic facial expression database [PDF]

, 2009
Human faces play an important role in everyday life, including the expression of person identity, emotion and intentionality, along with a range of biological functions.
Frowd, Charlie, Matuszewski, Bogdan, Quan, Wei, Shark, Lik   +3 more
core  

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

The Anatomical Record, EarlyView.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro, Marco Aurélio Gallo de França   +1 more
wiley   +1 more source

In Vitro Maturation of a Humanized Shark VNAR Domain to Improve Its Biophysical Properties to Facilitate Clinical Development

Frontiers in Immunology, 2017
Molecular engineering to increase the percentage identity to common human immunoglobulin sequences of non-human therapeutic antibodies and scaffolds has become standard practice.
John Steven, Mischa R. Müller, Miguel F. Carvalho, Obinna C. Ubah, Marina Kovaleva, Gerard Donohoe, Thomas Baddeley, Dawn Cornock, Kenneth Saunders, Andrew J. Porter, Andrew J. Porter, Caroline Jane Barelle   +11 more
doaj   +1 more source

The Shark Random Swim (L\'evy flight with memory)

, 2018
The Elephant Random Walk (ERW), first introduced by Sch\"utz and Trimper (2004), is a one-dimensional simple random walk on $ \mathbb{Z} $ having a memory about the whole past.
Businger, Silvia
core   +1 more source

Stabilisation of Na,K-ATPase structure by the cardiotonic steroid ouabain [PDF]

, 2013
Cardiotonic steroids such as ouabain bind with high affinity to the membrane-bound cation-transporting P-type Na,K-ATPase, leading to complete inhibition of the enzyme.
Abdul-Gader, Andrew J. Miles, B.A. Wallace, Esmann, Esmann, Esmann, Esmann, Fedosova, Kabsch, Kaplan, Klodos, Klose, Lees, Lowry, Mikael Esmann, Miles, Miles, Miles, Miles, Morth, Natalya U. Fedosova, Ogawa, Provencher, Schoner, Shinoda, Skou, Sreerama, Søren V. Hoffmann, Van Stokkum, Whitmore, Yatime   +30 more
core   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

Biological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson, Ellen Wohl, Laura L. Govers, Oscar Franken, Tjeerd J. Bouma, Han Olff, Britas Klemens Eriksson, Maryann S. Watson, Luísa M.S. Borges, Tjisse van der Heide   +9 more
wiley   +1 more source

Shark Spotters: Successfully reducing spatial overlap between white sharks (Carcharodon carcharias) and recreational water users in False Bay, South Africa.

PLoS ONE, 2017
White sharks (Carcharodon carcharias) are apex predators that play an important role in the structure and stability of marine ecosystems. Despite their ecological importance and protected status, white sharks are still subject to lethal control to reduce
Tamlyn Engelbrecht, Alison Kock, Sarah Waries, M Justin O'Riain   +3 more
doaj   +1 more source