Results 41 to 50 of about 27,360 (224)

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

Integrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang, Yuehua Wang, Hang Zhang, Guiping Xu, Shixia Xu, Guang Yang   +5 more
wiley   +1 more source

Manatees in the Guianas

Zoologica : scientific contributions of the New York Zoological Society., 1964
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Bertram, G. C. L. (George Colin Lawder), Bertram, Kate   +1 more
openaire   +2 more sources

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

Integrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic, Cleopatra Mara Loza, Alejo Carlos Scarano, Pedro Fernando Andrés‐Laube, Francisco Acuña, Juan Pablo Loureiro, Carolina Natalia Zanuzzi, Nicolás Nahuel Castro, María Teresa Pombo, Lorenzo von Fersen, Claudio Gustavo Barbeito   +10 more
wiley   +1 more source

Comparative Genomics and Functional Evidence for Convergent Adaptation to Hypoxia in Mammals

Integrative Zoology, EarlyView.
This study reveals convergent selection in mammals adapted to hypoxia. Functional assays demonstrate that amino acid mutations reduce oxidative stress, attenuate hypoxia‐induced injury, and modulate the hypoxia‐inducible transcription factor (HIF)‐driven hypoxic response.
Hao Dong, Chunxu Wang, Enqing Pei, Liang Zhao, Simin Chai, Ran Tian   +5 more
wiley   +1 more source

Corneal transplantation: Restoring sight to the blind

Acta Ophthalmologica, EarlyView.
Abstract Corneal blindness is one of the leading causes of vision loss worldwide. Transplantation of the cornea can restore vision and make blind patients see again. Corneal transplant surgery has undergone major evolution in recent decades with the advent of minimally invasive lamellar surgical approaches such as DMEK and DALK.
Claus Cursiefen
wiley   +1 more source

A multi-decadal aerial survey reveals patterns in manatee abundance and response to seagrass die-offs

Frontiers in Marine Science
Florida manatees (Trichechus manatus latirostris) are challenged by human alteration of landscapes and waterways. Coastal eutrophication has increased the frequency and intensity of Indian River Lagoon (IRL) algal blooms, promoting seagrass die-offs in ...
Douglas M. Scheidt, Jane A. Provancha, Eric D. Stolen, David R. Breininger, Resa A. Cancro, Russell H. Lowers, Eric A. Reyier, Bonnie J. Ahr   +7 more
doaj   +1 more source

Comprehensive revision of Mallomonas sect. Peroneides stat. nov. (Chrysophyceae) integrating morphology and multigene phylogeny

Journal of Phycology, EarlyView.
Abstract Mallomonas is among the most diverse genera of Chrysophyceae, yet many of its lineages remain taxonomically unresolved due to limited molecular sampling. Mallomonas series Peronoides, historically limited to four species, has posed persistent taxonomic difficulties, most notably the long‐standing and problematic reliance on a rare ...
Petr Knotek, Iva Jadrná, Martin Pusztai, Pavel Škaloud   +3 more
wiley   +1 more source

Third Grade Manatee Curriculum—Lesson 18: Let’s Have a Manatee Science Night!

EDIS, 2015
This 2-page fact sheet is the eighteenth lesson of the Third Grade Manatee Workbook series. This curriculum provides a series of individual lessons covering manatee biology and ecology, as well as highlighting some of the ways that humans impact and can
Maia McGuire, Ruth Francis-Floyd
doaj   +5 more sources

Gas exchange and pulmonary stress variations during SCUBA and breath‐hold diving in open seawater

The Journal of Physiology, EarlyView.
Abstract figure legend Healthy, trained divers were studied before, during and after diving in open seawater with different techniques. SCUBA divers (diving to 15 or 40 m with air; cycling at depth) and breath‐hold divers (BHDs; sled‐assisted dives to 15, 25 or 40 m) underwent underwater and surface arterial blood gas (ABG) sampling.
Matteo Paganini, Tommaso Antonio Giacon, Simona Mrakic‐Sposta, Luca Martani, Danilo Cialoni, Lorenzo Zucchi, Vincenzo Maffei, Rosario Cifali, Mariano Marmo, Enrico M Camporesi, Richard E Moon, Gerardo Bosco   +11 more
wiley   +1 more source

FROM THERE TO HERE: USING PHOTOGRAPHY TO EXPLORE PERSPECTIVES OF RESETTLED REFUGEE YOUTH

International Journal of Child, Youth & Family Studies, 2012
Because refugee numbers are much smaller than those of other immigrant populations in the United States, researchers frequently group refugees with other immigrants in their studies.
Jody Lynn McBrien, Rebecca Day
doaj   +1 more source