Results 171 to 180 of about 20,027 (238)

Comparative cranial biomechanics reveal macroevolutionary trends in theropod dinosaurs, with emphasis on Tyrannosauroidea

The Anatomical Record, EarlyView.
Abstract Tyrannosaurus is viewed as a model organism in vertebrate paleontology, with numerous studies analyzing its feeding biomechanics. Nonetheless, the evolution of this feeding performance has been under‐addressed in Tyrannosauroidea, especially in basal tyrannosauroids. Here we used muscle‐force reconstruction and finite element analysis (FEA) to
Evan Johnson‐Ransom, Paul Gignac, Daniel E. Barta, Ryan N. Felice, Eric Snively   +4 more
wiley   +1 more source

Pelagic Shuttles of Antibiotic Resistance Genes: Zooplankton as Overlooked Vectors Across Space and Food Webs. [PDF]

Microb Ecol
Calbet A.
europepmc   +1 more source

Inter‐ and intraspecific variation in theropod dinosaur dental microwear and its palaeoecological implications

The Anatomical Record, EarlyView.
Abstract Differences in skull and tooth morphology, stomach contents, and estimated bite force between medium‐to‐large sized (≥100 kg) predatory theropod dinosaurs have long been suspected to correlate with differences in their diets and dietary guilds (e.g., hypercarnivory, piscivory).
Cassius Morrison, James Gregory, Christopher Jackson, Jordan Bestwick, Katlin Schroeder, Samuel J.L. Gascoigne, Paul Bills, Laura B. Porro, Philip D. Mannion, Paul M. Barrett   +9 more
wiley   +1 more source

Protozoa-driven micro-food webs shaping carbon and nitrogen cycling in reservoir ecosystems. [PDF]

Environ Microbiome
Wang X, Liu J, Chai B, Wu T.
europepmc   +1 more source

Widespread distribution of large silesaurids evidenced by a new record from the Middle Triassic of southwest Gondwana

The Anatomical Record, EarlyView.
The largest silesaurid known from South America is described here, demonstrating that silesaurids reached large body sizes in southwestern Gondwana. This discovery further underscores the widespread geographic distribution and temporal persistence of large silesaurids across Pangea, despite faunal turnovers and environmental events such as the Carnian ...
Rodrigo Temp Müller
wiley   +1 more source

Climate Impacts on Lake Food-Webs Are Mediated by Biological Invasions. [PDF]

Glob Chang Biol
Leclerc C, Frossard V, Sharaf N, Bazin S, Bruel R, Sentis A.   +5 more
europepmc   +1 more source

Chicken Pulmonary MicroRNAs Targeting the PB2 (Segment 1) of Avian Influenza Virus

Animal Research and One Health, EarlyView.
The PB2 segment of H5N1 is essential for replication and host adaptation. We screened 200 miRNAs and identified five (gga‐miR‐17‐3p, gga‐miR‐29a‐5p, gga‐miR‐1718, gga‐miR‐16c‐5p, and gga‐miR‐1744‐5p) using thermodynamic stability of heteroduplex, seed sequence complementarity, conservation, and accessibility, offering insights into host antiviral ...
Akanksha Choudhary, Nidhishree N. S, Rakesh Kumar Pundir, Muhasin Asaf V. N, Anamika Mishra, Ashwin Ashok Raut, Megha Agarwal, Amod Kumar   +7 more
wiley   +1 more source

Reduced intraspecific variation in lake trout food webs under warmer temperatures and smaller ecosystem sizes. [PDF]

Ecology
Kotsopoulos CJ, Gutgesell M, Guzzo MM, Johnston TA, Tunney TD, Bartley TJ, McMeans BC, Ridgway MS, Blanchfield PJ, Fisk AT, McCann KS.   +10 more
europepmc   +1 more source

Efficacy and Safety of Guselkumab in Participants With Active Psoriatic Arthritis After Inadequate Response to One Prior Tumor Necrosis Factor Inhibitor: Week‐24 Results of a Phase 3, Randomized, Placebo‐Controlled Study

Arthritis &Rheumatology, EarlyView.
Objective To evaluate the efficacy and safety of guselkumab, an interleukin‐23p19 subunit inhibitor, in participants with active psoriatic arthritis (PsA) and inadequate response (inadequate efficacy and/or intolerance) to one prior tumor necrosis factor (TNF) inhibitor.
Alexis Ogdie, Joseph F. Merola, Philip J. Mease, Christopher T. Ritchlin, Jose U. Scher, Kimberly Parnell Lafferty, Daphne Chan, Soumya D. Chakravarty, Wayne Langholff, Yanli Wang, Jie Shao, Yevgeniy Krol, Alice B. Gottlieb   +12 more
wiley   +1 more source

Single-cell transcriptomics reveals lateral transfers of multiple functional genes from prokaryotes to free-living ciliated protists in detrital food webs. [PDF]

Mar Life Sci Technol
Zhang Q, Gentekaki E, Leger MM, Zou S, Zhang GA, Omar A, Fu Y, Gong J.   +7 more
europepmc   +1 more source