Results 81 to 90 of about 47,390 (286)

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Osseointegration of Antimicrobial Acrylic Bone Cements Modified with Graphene Oxide and Chitosan

open access: yesApplied Sciences, 2020
Acrylic bone cement (ABC) is one of the most used materials in orthopedic surgery, mainly for the fixation of orthopedic implants to the bone. However, ABCs usually present lack of biological activity and osseointegration capacity that leads to loosening
Mayra Eliana Valencia Zapata   +6 more
doaj   +1 more source

Skull Cryptococcal Osteomyelitis Complicated with Pulmonary Tuberculosis [PDF]

open access: yes, 2003
A rare case of bone cryptococcosis solely involving the skull is presented. A 63-year-old man had received an antituberculous treatment for pulmonary tuberculosis.
Sakata, Shuji   +6 more
core  

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

Successful management of primary non Hodgkin's lymphoma of the cranial vault

open access: yesThe Pan African Medical Journal, 2011
Primary bone lymphoma (PBL) is a relatively uncommon entity. However, involvement of the cranial vault is an unusual manifestation of aggressive non-Hodgkin's lymphoma.
Zouhour Fadoukhair   +8 more
doaj   +1 more source

Development of Patient-Specific CT-FE Modelling of Bone Through Validation Using Porcine Femora [PDF]

open access: yes, 2012
A&E statistics in the UK demonstrate that as high as 60% of bone fractures occur as a result of trips and falls. Subsequently, many studies have been undertaken to simulate the occurrence of hip fractures. Little simulation has been considered outside of
Emerson, Nicholas
core  

Cardiac morphological and morphometric analysis of Ardea alba

open access: yesThe Anatomical Record, EarlyView.
Abstract Ardea alba (Linnaeus, 1758) is a widely distributed heron species whose cardiovascular morphology remains poorly described. This study aimed to characterize the cardiac morphology and morphometry of adult A. alba. Ten specimens were analyzed using radiographic, morphometric, histological, scanning electron microscopy, and three‐dimensional ...
Julia Vaz Feio   +5 more
wiley   +1 more source

The effect of piezosurgery with cvd tip in osteotomy in rat parietal bone: histologic and histomorphometric analysis

open access: yesBrazilian Dental Science, 2015
Objective: The aim of this study was to compare the response of bone tissue in osteotomy under piezosurgery using a CVD tip in rat parietal bone in contrast with the standard protocol using low-speed tungsten burs.
Nelson Luiz Macedo   +3 more
doaj   +1 more source

Aneurysmal bone cyst of the parietal bone: case report

open access: yes, 2015
Aneurysmal bone cysts are locally destructive, vascular, multicystic benign tumors of bone, which are usually located on metaphysis. Cranial aneurysmal bone cysts are uncommon.
Ekici, Mehmet Ali   +3 more
core  

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