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| http://dx.doi.org/10.1353/ppp.2017.0037 | DOI Listing |
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Growth and mechanical correlations of calcified cartilage in Batoidea: A histomorphological study using the Raja asterias model.
J Fish Biol
January 2025
Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy.
Article Synopsis
- This study examines how the growth and calcification of the appendicular skeleton in the Raja asterias affects its movement in water, highlighting the link between bone structure and fin mechanics.
- It identifies two growth patterns—crustal in larger skeletal parts and catenated in fin radials—showing how differences in development can influence fin flexibility and locomotion.
- The results suggest that unique calcification patterns, especially in the pelvic fins, evolve to meet the mechanical needs of swimming, emphasizing the adaptability of Batoidea fins through their joint structures and specialized designs.
Berkeley on true motion.
Stud Hist Philos Sci
June 2024
The Ohio State University, Columbus, OH, USA, 43210. Electronic address:
Studies of the Early Modern debate concerning absolute and relative space and motion often ignore the significance of the concept of true motion in this debate. Even philosophers who denied the existence of absolute space maintained that true motions could be distinguished from merely apparent ones. In this paper, I examine Berkeley's endorsement of this distinction and the problems it raises.
View Article and Find Full Text PDFThe conceptual injustice of the brain death standard.
Theor Med Bioeth
August 2024
Warren Alpert Medical School of Brown University, Providence, RI, USA.
Family disputes over the diagnosis of brain death have caused much controversy in the bioethics literature over the conceptual validity of the brain death standard. Given the tenuous status of brain death as death, it is pragmatically fruitful to reframe intractable debates about the metaphysical nature of brain death as metalinguistic disputes about its conceptual deployment. This new framework leaves the metaphysical debate open and brings into focus the social functions that are served by deploying the concept of brain death.
View Article and Find Full Text PDFUsefulness of external fixation and reverse Sural fasciocutaneous flap: Treatment of grade III B open tibial fractures in resource-limited settings.
Injury
March 2024
Emergency Surgery Centre, Goderich, Sierra Leone,Africa.
Purpose: Sierra Leone is a low-income country located on the west coast of Africa where the majority of the population does not have free access to emergency medical and surgical services, the principal cause of open tibia fractures is motorcycle collision. Open fractures of the middle and distal third of the tibial segments, particularly those classified as type III B, represent a challenge for orthopedic surgeons because of the loss of soft tissue coverage. The Reverse Sural Fasciocutaneous Flap (RSFF) has been shown to be an ideal and reproducible option for the treatment of soft tissue defects.
View Article and Find Full Text PDFComparative analysis of external locking plate and combined frame external fixator for open distal tibial fractures: a comprehensive assessment of clinical outcomes and financial implications.
BMC Musculoskelet Disord
December 2023
Department of Orthopedics, The First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou City, Hubei Province, 434023, People's Republic of China.
Background: Open distal tibial fractures pose significant challenges regarding treatment options and patient outcomes. This retrospective single-centre study aimed to compare the stability, clinical outcomes, complications, and financial implications of two surgical interventions, namely the external locking plate and the combined frame external fixator, to manage open distal tibial fractures.
Methods: Forty-four patients with distal open tibial (metaphyseal extraarticular) fractures treated between 2020 and 2022 were selected and formed into two main groups, Group A and Group B.
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