Results 211 to 220 of about 117,127 (343)

The study the erosion of the electrodes under the influence moving electric arc [PDF]

, 2014
Azat Gabdrakhmanov, I H Israphilov, A T Galiakbarov   +2 more
openalex   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

The Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto, João Felipe Leal Kaiuca, Adriana Itatí Olivares, William Corrêa Tavares   +3 more
wiley   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

The Anatomical Record, EarlyView.
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe, Phil R. Bell, Ian Baylatry, Robin Sissons, Corwin Sullivan   +4 more
wiley   +1 more source

Along-Arc geochemical variations in the Southern Volcanic Zone, Chile [PDF]

, 2011
Garbe-Schönberg, Dieter, Hauff, Folkmar, Hoernle, Kaj, Jacques, Guillaume, Lara, Luis, van den Bogaard, Paul, Wehrmann, Heidi   +6 more
core  

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

The Anatomical Record, EarlyView.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro, Jeffrey A. Wilson Mantilla, Jhonata H. A. Martins, Fabiano V. Iori, Leonardo S. Paschoa, Alberto B. Carvalho, Joseli M. Piranha, Hussam Zaher   +7 more
wiley   +1 more source

Pathogenesis of Acute Coronary Syndromes in Patients After COVID-19: An Optical Coherence Tomography Study. [PDF]

J Clin Med
Bryniarski KL, Bartus S, Legutko J, Bryniarski L, Gasior P, Wojakowski W, Rzeszutko L, Dziewierz A, Zasada W, Rakowski T, Makowicz D, Wojdyla R, Kleczynski P, Jang IK.   +13 more
europepmc   +1 more source

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

The 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, Frederik P. Wolvaardt, Roger M. H. Smith, Jaganmoy Jodder, Julien Benoit   +4 more
wiley   +1 more source

Machining Accurate Deep Curved Forms on Tungsten Carbide-Cobalt (WC-Co) Eliminating Tool Wear in the Electrical Discharge Turning Operation. [PDF]

Micromachines (Basel)
Hadad M, Soleymani M, Alinaghizadeh A.
europepmc   +1 more source

Comparative Analysis of the Dynamics of Changes in the Geometric Parameters of New Cultivator Goose-Foot Shares and Those Restored Using Plasma-Arc welding with Carbide Electro-Erosion Powders

V.A. Konchin, E.V. Ageeva, V.I. Serebrovsky, A.P. BASHKIREV   +3 more
openalex   +1 more source

Paleopathology of a putative colossosaurian caudal vertebra (Neosauropoda: Titanosauria) from the Presidente Prudente Formation, Brazil

The Anatomical Record, EarlyView.
Abstract Studies investigating paleopathologies in sauropods remain scarce despite their relative abundance in the fossil record. In this study we report new occurrence of paleopathological features, corresponding to a neoplasm found in a middle caudal vertebra (MCT.R.2120) of an advanced titanosaur from the Presidente Prudente Formation (Bauru Basin ...
Maria Luiza Peres Bertolossi, Kamila L. N. Bandeira, Roberta Veronese do Amaral, Arthur S. Brum, Rafael C. da Silva, Valéria Gallo   +5 more
wiley   +1 more source