Results 11 to 20 of about 225 (106)
On the importance of integrating comparative anatomy and One Health perspectives in anatomy education. [PDF]
J Anat, 2022 Acquiring a robust knowledge of comparative anatomy as part of the medical curriculum helps in understanding diseases better. This review article converges the ideas discussed in a symposium on One Health arranged during the IFAA2019 and prioritises an action plan of integrating veterinary knowledge into the medical curriculum.
Bhattacharjee S +6 more
europepmc +2 more sources
Helical microstructures in molluscan biomineralization are a biological example of close packed helices that may form from a colloidal liquid crystal precursor in a twist-bend nematic phase [PDF]
Phys. Rev. Materials 6, 105601, 2022, 2022 We demonstrate that nature has produced a close-packed helical twisted filamentous material in the biomineralization of the mollusc. In liquid crystals, twist-bend nematics have been predicted and observed. We present and analyse evidence that the helical biomineral microstructure of mollusc shells may be formed from such a liquid-crystal precursor.
arxiv +1 more source
Evolutionary Applications, Volume 16, Issue 2, Page 428-460, February 2023., 2023 Abstract By applying morphological and molecular data on two genera of the nudibranch molluscs it is shown that the tension between taxonomic practice and evolutionary processes persists. A review of the related genera Catriona and Tenellia is used to demonstrate that the fine‐scale taxonomic differentiation is an important tool in the integration of ...
Tatiana Korshunova +3 more
wiley +1 more source
Heterotopic Gastric Mucosa Causing Rectal Bleeding in a Young Child
JPGN Reports, Volume 3, Issue 2, May 2022., 2022 Heterotopic gastric mucosa (HGM) in the colon and small bowel is a very rare finding. We report a case of HGM in the rectum of an 8‐year‐old child with a history of eosinophilic esophagitis after having a colonoscopy to evaluate for inflammatory bowel disease. The colonoscopy was normal except for rectal tissue erythema and edema.
Blake Patricia‐Rae Meyer +3 more
wiley +1 more source
Ingestion and Toxicity of Polystyrene Microplastics in Freshwater Bivalves
Environmental Toxicology and Chemistry, Volume 40, Issue 8, Page 2247-2260, August 2021., 2021 Microplastic ingestion by freshwater mussels depends on the exposure time, body size, food availability, and microplastic concentration. Polystyrene fragments (≤63 µm) affected mussels' clearance rate but not mortality, energy reserves, or oxidative stress. PS = polystyrene; MP = microplastics.
Annkatrin Weber +6 more
wiley +1 more source
Lesions of the biliary system in Atlantic salmon (Salmo salar L.)
, 2023 Journal of Fish Diseases, Volume 46, Issue 3, Page 281-285, March 2023.
Lene R. Sveen +6 more
wiley +1 more source
Nanoscale assembly processes revealed in the nacroprismatic transition zone of Pinna nobilis mollusc shells [PDF]
Nature Communications, Vol. 6, Article number: 10097, 2015, 2015 Intricate biomineralization processes in molluscs engineer hierarchical structures with meso-, nano-, and atomic architectures that give the final composite material exceptional mechanical strength and optical iridescence on the macroscale. This multiscale biological assembly inspires new synthetic routes to complex materials.
arxiv +1 more source
Sierpinski signal generates $1/f^α$ spectra [PDF]
Phys. Rev. E 70, 032101 (2004), 2003 We investigate the row sum of the binary pattern generated by the Sierpinski automaton: Interpreted as a time series we calculate the power spectrum of this Sierpinski signal analytically and obtain a unique rugged fine structure with underlying power law decay with an exponent of approximately 1.15. Despite the simplicity of the model, it can serve as
arxiv +1 more source
Journal of Morphology, Volume 281, Issue 4-5, Page 500-512, April-May 2020., 2020 The morphology of the hemolymph circulatory system of the decapod Penaeus vannamei is investigated. As well as the complex vascular system, distinct lacunae are investigated three‐dimensionally and interpreted on a functional level. Abstract The morphology of hemolymph circulatory systems has been studied in many arthropod groups over the past decades.
Torben Göpel, Christian S. Wirkner
wiley +1 more source
Mechanism, dynamics, and biological existence of multistability in a large class of bursting neurons [PDF]
J.P. Newman and R.J. Butera. Mechanism, dynamics, and biological
existence of multistability in a large class of bursting neurons. Chaos 20,
2010, 2008 Multistability, the coexistence of multiple attractors in a dynamical system, is explored in bursting nerve cells. A modeling study is performed to show that a large class of bursting systems, as defined by a shared topology when represented as dynamical systems, is inherently suited to support multistability.
arxiv +1 more source