Results 71 to 80 of about 446,324 (293)
Mitochondrial Genomes Reveal an Explosive Radiation of Extinct and Extant Bears near the Miocene-Pliocene Boundary [PDF]
, 2008 Background: Despite being one of the most studied families within the Carnivora, the phylogenetic relationships among the members of the bear family (Ursidae) have long remained unclear.
Bray, Sarah C. E. +17 more
core +10 more sources
Advanced Functional Materials, EarlyView.This work reports the first gram‐scale solvothermal synthesis of ‘Rubik's cube’ nanoparticles—cubic, dendritic multicore structures with tuneable sizes and exceptional magnetic heating performance. Featuring iron oxide single‐domain character, with low coercivity fields, high magnetization, and strong MPI signals, they enable viscosity‐independent ...
Giusy M. R. Rizzo +12 more
wiley +1 more source
Cave of La Chěnelaz (Hostias, Ain, France). The large Mammals of the layer 6b [PDF]
, 2002 More than 3600 remains of large Mammals have been discovered in layer 6b of the cave of La Chenelaz, about 33\u27000 years ago. The identified taxa belong to the orders of Insectivora, Carnivora, Lagomorpha, Rodentia, Perissodactyla and Artiodactyla. The
M. Schweizer
core +1 more source
Advanced Functional Materials, EarlyView.Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan +8 more
wiley +1 more source
Intrinsic and extrinsic factors influence on an omnivore's gut microbiome.
PLoS ONE, 2022 Gut microbiomes (GMBs), complex communities of microorganisms inhabiting the gastrointestinal tracts of their hosts, perform countless micro-ecosystem services such as facilitating energy uptake and modulating immune responses.
Sarah M Trujillo +9 more
doaj +1 more source
Introgressive hybridization: brown bears as vectors for polar bear alleles [PDF]
Molecular Ecology, 2015 The dynamics and consequences of introgression can inform about numerous evolutionary processes. Biologists have therefore long been interested in hybridization. One challenge, however, lies in the identification of nonadmixed genotypes that can serve as a baseline for accurate quantification of admixture.
openaire +2 more sources
Advanced Functional Materials, EarlyView.This study shows that lizard osteoderm capping tissue is a hyper‐mineralized hydroxyapatite layer consistently covering the superficial osteoderm surface in those species studied here, yet it varies greatly in morphology, nanostructure, and mechanical performance across species.
Adrian Rodriguez‐Palomo +10 more
wiley +1 more source
Identifying key denning habitat to conserve brown bear (Ursus arctos) in Croatia [PDF]
, 2017 CONTEXT: The preservation of denning habitat is paramount to the recovery of threatened bear populations because of the effect that den site disturbance can have on cub mortality.
Huber, D +6 more
core +1 more source
Population genetics of Ice Age brown bears [PDF]
Proceedings of the National Academy of Sciences, 2000 The Pleistocene was a dynamic period for Holarctic mammal species, complicated by episodes of glaciation, local extinctions, and intercontinental migration. The genetic consequences of these events are difficult to resolve from the study of present-day populations. To provide a direct view of population genetics in the late Pleistocene, we
J A, Leonard, R K, Wayne, A, Cooper
openaire +2 more sources
Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents
Advanced Functional Materials, EarlyView.Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras +6 more
wiley +1 more source