Results 71 to 80 of about 1,816 (247)

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

The 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, Ricardo Araújo, Bruce S. Rubidge, Michael O. Day, Kathleen N. Dollman, Julien Benoit   +5 more
wiley   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

The Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes, Lennart Müller‐Thomsen, Stefan Huggenberger   +2 more
wiley   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

The Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti, Lívia Roese‐Miron, Brodsky Dantas Macedo Farias, Marina Bento Soares, Leonardo Kerber   +4 more
wiley   +1 more source

Integrated microanatomy and microstructure of the maxillary tooth plate reveal a reinforced feeding system and tougher diet in Late Triassic Hyperodapedontinae (Rhynchosauria, Archosauromorpha)

The Anatomical Record, EarlyView.
Abstract Hyperodapedontine rhynchosaurs possessed a unique oral apparatus, long interpreted as an adaptation for processing abrasive and resistant plant material. However, the microanatomical and histological evidence supporting this interpretation remains poorly documented.
Caio A. Scartezini, Pedro L. B. Pruciano, Brodsky D. M. Farias, Marina B. Soares   +3 more
wiley   +1 more source

Influence Law of Bionic Serrated Structure on Hydrodynamic Noise Characteristics of Toroidal Propellers

水下无人系统学报
The toroidal propeller has emerged as a research hotspot in the field of underwater propulsion owing to its potential for enhancing propulsion efficiency and achieving effective noise control.
Xinpei MAO, Peng LIU, Jiang LIU, Ludi KANG, Hui JIN, Yibing YIN   +5 more
doaj   +1 more source

Osteology of the pectoral girdle and forelimb of Siriusgnathus niemeyerorum, a Late Triassic traversodontid cynodont from Brazil

The Anatomical Record, EarlyView.
Abstract Traversodontids are non‐mammaliaform cynodonts, herbivorous to omnivorous, that lived during the Triassic. In the Late Triassic, some members of this group increased in body size relative to other cynodont lineages and evolved postcranial adaptations associated with locomotion.
Jhonata H. A. Martins, Leonardo Kerber
wiley   +1 more source

Single‐Staged Combined Retrograde Subchondral Drilling and In Situ Autologous or Micronized Cartilage Repair With Bone Marrow Aspirate Concentrate for Focal Patellofemoral Chondral Lesions

Arthroscopy Techniques, EarlyView.
Abstract Patellofemoral cartilage lesions are uniquely challenging to treat due to high joint contact pressures, complex tracking mechanics, and limited intrinsic healing potential. Conventional methods such as debridement, microfracture, or staged autologous chondrocyte implantation may disrupt the calcified cartilage layer, violate the subchondral ...
S. Ali Ghasemi, Ahmad Naja, Yoni Dulitzki, Gene W. Shaffer, James S. Raphael, Arthur R. Bartolozzi   +5 more
wiley   +1 more source

Total Elbow Arthroplasty: Tips and Tricks in the Setting of Arthritis and Fracture Care

Arthroscopy Techniques, EarlyView.
Abstract The aim of this article is to illustrate our technique for total elbow arthroplasty, acknowledging the key technological advancements and evidence‐based techniques that have emerged in the last 2 decades. In this technical note, we describe our pearls for a reproducible and reliable total elbow arthroplasty procedure.
Benjamin Kerzner, Kyleen Jan, Alexander L. Hornung, John F. Hoy, Xavier C. Simcock   +4 more
wiley   +1 more source

Volumetric analysis of root coverage with porcine acellular dermal matrix: Case study

Clinical Advances in Periodontics, EarlyView.
Abstract Background Gingival recession is prevalent and often treated with coronally advanced flap plus connective tissue graft (CAF+CTG). Porcine acellular dermal matrix (PADM) offers a donor‐site‐free alternative. Contemporary digital imaging allows minimally invasive, three‐dimensional (3D) soft‐tissue assessment. This case report quantified 3D soft‐
Edgar Daniel Vargas‐Quiroga, Giovanna Fernanda Favero da Silva, Bruna Santos Honorio Tonin, Arthur Belém Novaes‐Jr, Marilia Bianchini Lemos Reis   +4 more
wiley   +1 more source

Desempenho de cortadores de base para colhedoras de cana-de-açúcar com lâminas serrilhadas e inclinadas Performance of basecutter of sugarcane harvester with angled and serrated blades

Revista Brasileira de Engenharia Agrícola e Ambiental, 2003
O Brasil é o maior produtor mundial de cana-de-açúcar. A mecanização da colheita tornou-se uma necessidade dos tempos modernos, mas perdas de 10 a 15% são freqüentes quando a cana é colhida crua. A deflexão e o corte de base são responsáveis por danos na
Roberto da C. Mello, Harry Harris
doaj   +1 more source