Results 251 to 260 of about 313,820 (353)

Effects of sudden change in cycle length on human atrial, atrioventricular nodal and ventricular refractory periods. [PDF]

open access: bronze, 1981
Isaac Wiener   +6 more
openalex   +1 more source

Nodal Na<sup>+</sup> and Ca<sup>2+</sup> flux dynamics in cortical myelinated axons. [PDF]

open access: yesFront Cell Neurosci
Kotler O   +4 more
europepmc   +1 more source

Helmeted hornbill cranial kinesis: Balancing mobility and stability in a high‐impact joint

open access: yesThe Anatomical Record, EarlyView.
Abstract Prokinesis—in which a craniofacial joint allows the rostrum to move relative to the braincase—is thought to confer diverse advantages in birds, mostly for feeding. A craniofacial joint would, however, be a weak link if cranial stability is important. Paradoxically, we have identified a craniofacial joint in helmeted hornbills (Rhinoplax vigil),
Mike Schindler   +8 more
wiley   +1 more source

But how does it smell? An investigation of olfactory bulb size among living and fossil primates and other euarchontoglirans

open access: yesThe Anatomical Record, EarlyView.
Analysis of cranial endocast data of 181 extant and 41 fossil species from Euarchontoglires shows that there was a reduction in olfactory bulb size in Crown Primates, but that there were also subsequent reductions in various other primate clades (Anthropoidea, Catarrhini, Platyrrhini, crown Cercopithecoidea, Hominoidea).
Madlen Maryanna Lang   +6 more
wiley   +1 more source

Book Review: Toolbox for Assessment of Clinical Competence

open access: yesResearch and Humanities in Medical Education, 2023
Munira Hirkani
doaj  

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