Results 21 to 30 of about 3,987 (209)

Genomic evidence for the parallel regression of melatonin synthesis and signaling pathways in placental mammals [version 2; peer review: 2 approved]

Open Research Europe, 2021
Background: The study of regressive evolution has yielded a wealth of examples where the underlying genes bear molecular signatures of trait degradation, such as pseudogenization or deletion. Typically, it appears that such disrupted genes are limited to
Mark S. Springer, Christopher A. Emerling, Zachary Jones, John Gatesy, David Xia-Zhu, Deana Hamilton, Frédéric Delsuc, Matt Collin   +7 more
doaj   +1 more source

Using osteological measurements to estimate body length in Amazonian manatees [PDF]

Acta Amazonica
Body length is an important parameter in morphological, ecological and behavioral studies of a species and contributes to the understanding of the body condition of individuals.
Gisele de Castro Maciel VALDEVINO, Vera Maria Ferreira DA SILVA, Rodrigo de Souza AMARAL   +2 more
doaj   +2 more sources

Confirmação da relação entre peixes-bois, "hyraxes" e elefantes, por meio do estudo da proteína das lentes dos olhos () [PDF]

Acta Amazonica, 1980
Resumo As relações filogenéticas entre os membros da super-ordem Paenungulata, os peixes-bois, elefantes e "hyraxes", foram investigadas, utilizando-se a seqüência de análises de aminoácidos da proteína oc A do cristalino da lente dos olhos destes ...
W. W. de Jong, A. Zweers
doaj   +1 more source

Masmédiá na Slovensku a ich úloha pri formovaní (po)vedomia o environmentálnych problémoch a podpore kritického myslenia

Envigogika, 2021
Napriek rozmachu sociálnych sietí prostriedky masovej komunikácie (masmédiá) naďalej zohrávajú dôležitú a nezastupiteľnú úlohu v spoločnosti. Od šírenia informácií, cez formovanie verejného povedomia až po relax a zábavu- V príspevku sme sa zamerali na ...
Mikuláš Huba
doaj   +1 more source

Complete mitochondrial genome of the Florida manatee (Trichechus manatus latirotris, Sirenia) [PDF]

Genetics and Molecular Biology, 2020
The Florida manatee (Trichechus manatus latirostris) is an endangered subspecies of the West Indian manatee (T. manatus), which inhabits inland and marine waters of southeastern United States.
Sibelle T. Vilaça, Fabricio R. Santos
doaj   +1 more source

Inactivation of thermogenic UCP1 as a historical contingency in multiple placental mammal clades [PDF]

, 2017
Mitochondrial uncoupling protein 1 (UCP1) is essential for nonshivering thermogenesis in brown adipose tissue and is widely accepted to have played a key thermoregulatory role in small-bodied and neonatal placental mammals that enabled the exploitation ...
Alexander, Antoine, Balaguer, Banyue, Barrow, Barycka, Benton, Bergqvist, Bi, Campbell, Cohen, Domning, Eisenmann, Fisher, Fitzgerald, Fordyce, Gheerbrant, Gingerich, Gingerich, Hartenberger, Hashimoto, Heath, Heaton, Irving, Kocsis, Larramendi, Lewis, Li, McDonald, Meng, Meredith, Meyer, Nicholls, Oelkrug, Patterson, Pearson, Pearson, Phillips, Pickford, Pickford, Rothwell, Saito, Sakurai, Shackleton, Shoshani, Springer, Tabuce, Tomiya, Vucetich, Vélez-Juarbe, Vélez-Juarbe, Wesley-Hunt, Woodburne   +52 more
core   +1 more source

Microsatellite Polymorphism and the Population Structure of Dugongs (Dugong dugon) in Thailand

Animals, 2022
The dugong (Dugong dugon) is an endangered species of marine mammals, so knowledge of genetic diversity of these populations is important for conservation planning within different habitats.
Anocha Poommouang, Promporn Piboon, Kittisak Buddhachat, Janine L. Brown, Wannapimol Kriangwanich, Siriwadee Chomdej, Jatupol Kampuansai, Supamit Mekchay, Patcharaporn Kaewmong, Kongkiat Kittiwattanawong, Korakot Nganvongpanit   +10 more
doaj   +1 more source

A new Oligocene site with terrestrial mammals and a selachian fauna from Minqar Tibaghbagh, the western Desert of Egypt [PDF]

, 2017
A new fossil site at Minqar Tibaghbagh, east of Siwa, in the Egyptian Western Desert is described. This represents the first place in Egypt outside the Fayum Depression yielding Paleogene, terrestrial mammals.
Bosselaers, M., El-Kheir, G., Paijmans, T.M., Schulp, A., Underwood, Charlie J., Van Vliet, H.J.   +5 more
core   +4 more sources

Modelling the Uncertainty of Slope Estimation from a Lidar-Derived Dem: a Case Study from a Large-Scale Area in the Czech Republic / Modelovanie Neistoty Vo Výpočte Sklonov Z Lidarových Dmr; Prípadová Štúdia Vybraného Malého Územia V Čr

GeoScience Engineering, 2013
Táto práca zhŕňa metódu a výsledky modelovania chýb a analýzu šírenia chýb vo výpočte sklonov z DMR získaných LIDAR-om v skúmanej lokalite okolia sútoku riek Olše a Stonávka. V terénnych analýzach výstupy uvedenej analýzy sú vždy funkciou vstupu.
Mudron Ivan, Podhoranyi Michal, Cirbus Juraj, Devečka Branislav, Bakay Ladislav   +4 more
doaj   +1 more source

The myology of the Amazonian Manatee, Trichechus inunguis (Natterer) (Mammalia: Sirenia) [PDF]

Acta Amazonica, 1978
: The muscles of the Amazonian manatee are described and compared with those of other manatees and the dugong. Maps of muscle attachments and data on weights of muscles are included. The manatee species differ in the forms of the mm.
Daryl P. Domning
doaj   +1 more source