Results 91 to 100 of about 50,956 (387)

Outbreak of a neurotoxic side-gilled sea slug (Pleurobranchaea sp.) in Argentinian coasts [PDF]

open access: yes, 2015
Since 2009 we have been registering the outbreak of an unknown side-gilled sea slug of the genus Pleurobranchaea in coastal waters of Argentina, southwestern Atlantic Ocean.
Farias, Nahuel Emiliano   +2 more
core   +1 more source

Who was the real sabertooth predator: Thylacosmilus or Thylacoleo?

open access: yesThe Anatomical Record, EarlyView.
Abstract Sabertoothed mammalian predators, all now extinct, were almost exclusively feloid carnivorans (Eutheria, Placentalia): here a couple of extinct metatherian predators are considered in comparison with the placental sabertooths. Thylacosmilus (the “marsupial sabertooth”) and Thylacoleo (the “marsupial lion”) were both relatively large (puma ...
Christine M. Janis
wiley   +1 more source

Evolving Surgical Approaches to Bicuspid Aortic Valve Associated Aortopathy

open access: yesFrontiers in Cardiovascular Medicine, 2019
Bicuspid aortic valve (BAV) is the most common congenital cardiac pathology which results from the fusion of two adjacent aortic valve cusps. It is associated with dilatation of the aorta, known as bicuspid valve-associated aortopathy or bicuspid ...
Ali Fatehi Hassanabad   +4 more
doaj   +1 more source

Mandibular Dentition in Six Species of Salamanders, genus Plethodon (Caudata: Plethontidae), from Arkansas Using Scanning Electron Microscopy [PDF]

open access: yes, 1988
The mandibular (dentary) dentition of six species of Plethodon (P. caddoensis, P. dorsalis, P. fourchensis, P. glutinosus, P. ouachitae, and P. serratus) from Arkansas was studied using scanning electron microscopy.
Atwill, Richard A., Trauth, Stanley E.
core   +2 more sources

Growing sabers: Mandibular shape and biomechanical performance trajectories during the ontogeny of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar   +5 more
wiley   +1 more source

Space closure and incisor alignment in the mandibular arch following first premolar extraction without appliance therapy

open access: yesAustralasian Orthodontic Journal, 1989
Changes in the mandibular arch were evaluated in 32 cases of lower first premolar extraction without appliance therapy. There was a mean reduction in the irregularity index and extraction space of 52 percent and 45 percent respectively.
Woon Kok-Chin
doaj   +1 more source

Cerebrovascular complications and infective endocarditis. impact of available evidence on clinical outcome [PDF]

open access: yes, 2018
Infective endocarditis (IE) is a life-threatening disease. Its epidemiological profile has substantially changed in recent years although 1-year mortality is still high.
De Bellis, Antonio   +8 more
core   +1 more source

Synapsids and sensitivity: Broad survey of tetrapod trigeminal canal morphology supports an evolutionary trend of increasing facial tactile specialization in the mammal lineage

open access: yesThe Anatomical Record, EarlyView.
Abstract The trigeminus nerve (cranial nerve V) is a large and significant conduit of sensory information from the face to the brain, with its three branches extending over the head to innervate a wide variety of integumentary sensory receptors, primarily tactile.
Juri A. Miyamae   +4 more
wiley   +1 more source

Aortic root abscess presenting as alternating bundle branch block: Infective endocarditis of bicuspid aortic valve

open access: yesIndian Heart Journal, 2015
Bicuspid aortic valve is the most common congenital cardiac malformation, affecting 1%–2% of the population. Among various complications, incidence of infective endocarditis (IE) in the bicuspid aortic valve population is high with higher rate of ...
Rakesh Jain   +3 more
doaj   +1 more source

Annular and supra-annular structure assessments for transcatheter aortic valve replacement in patients with bicuspid aortic stenosis

open access: yesReviews in Cardiovascular Medicine, 2021
The clinical use indications for transcatheter aortic valve replacement (TAVR) for the treatment of severe symptomatic aortic stenosis (AS) have expanded from patients at high surgical risk to those at low risk based on the results of multiple large ...
Jian-Di Liu   +4 more
doaj   +1 more source

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