Results 191 to 200 of about 56,467 (257)

Redescription of the Triassic cynodont Cistecynodon parvus and reassessment of its phylogeny

open access: yesThe Anatomical Record, EarlyView.
Abstract Cynodontia is an important subclade of Therapsida that first occurred in the late Permian. It includes extinct subclades which are the non‐mammaliaform cynodonts and Mammaliaformes, with the latter ultimately giving rise to crown mammals. The systematics of non‐mammaliaform cynodonts has been extensively studied and is relatively well‐resolved,
Erin S. Lund   +4 more
wiley   +1 more source

Evolutionary radiation of large‐bodied gorgonopsians from the lower Abrahamskraal formation of South Africa

open access: yesThe Anatomical Record, EarlyView.
Abstract The middle Permian represents a critical interval in therapsid evolution, when gorgonopsians emerged as some of the first specialized apex predators within terrestrial ecosystems. Despite their significance, the early diversification of Gorgonopsia in Gondwana remains poorly understood due to scarcity and fragmentary material.
Zanildo Macungo   +5 more
wiley   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

open access: yesThe Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla   +7 more
wiley   +1 more source

An efficient single-arm Bayesian adaptive trial algorithm to evaluate de-intensified oncologic treatment. [PDF]

open access: yesTrials
Zhong Y   +7 more
europepmc   +1 more source

Biologic and Targeted Synthetic Disease‐Modifying Antirheumatic Drugs Do Not Arrest Bone Loss in Patients With Rheumatoid Arthritis: A Long‐Term Multicenter Observational Study

open access: yesArthritis &Rheumatology, EarlyView.
Objective Osteoporosis causes fractures that further increase the disease burden of rheumatoid arthritis (RA); however, osteoporosis treatment rates remain low. Although several studies have reported that biologic or targeted synthetic disease‐modifying antirheumatic drugs (b/tsDMARDs) can prevent or improve osteoporosis in RA, our large‐scale, real ...
Takafumi Aritomi   +30 more
wiley   +1 more source

Open Intrameniscal Examination and Reduction of Depressed Tibial Plateau Fracture

open access: yesArthroscopy Techniques, EarlyView.
Abstract In the Schatzker classification, approximately 60.5% of tibial fractures can potentially involve depression fractures of the plateau, on average in types II, III, and IV, and are particularly prevalent among the elderly population. A significant challenge in managing these fractures is achieving optimal visualization of the depressed fracture ...
Sohrab Keyhani   +5 more
wiley   +1 more source

Null radiation zone at the LHC

open access: yesNull radiation zone at the LHC
openaire  

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