Results 171 to 180 of about 86,060 (293)

Development of the external genitalia. [PDF]

open access: yes, 2020
Baskin, Laurence S, Cunha, Gerald R
core  

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa   +8 more
wiley   +1 more source

A new catfish species of Microcambeva Costa & Bockmann, 1994 (Siluriformes: Trichomycteridae) from southern Brazil, with a redescription of M. ribeirae Costa, Lima & Bizerril, 2004

open access: yesJournal of Fish Biology, EarlyView.
Abstract Among the few species of Microcambeva reported as occurring in more than one hydrographic basin, M. ribeirae has been previously listed from both the Ribeira de Iguape and the Guaraqueçaba basins. However, morphological and molecular analyses revealed that the specimens from Guaraqueçaba represent a new species, which is described in this ...
Lucas S. de Medeiros   +6 more
wiley   +1 more source

Assessment of two minimally invasive methodologies for sex identification in the European eel, Anguilla anguilla

open access: yesJournal of Fish Biology, EarlyView.
Abstract Sex is an important driver of variation in behaviour, ecology and physiology. Sex identification in the Critically Endangered European eel (Anguilla anguilla) currently requires fish sacrifice, or the use of morphological differences such as body length, which can be inaccurate in certain habitats and at intermediate body lengths.
Michael J. Williamson   +12 more
wiley   +1 more source

The junction between the midgut and hindgut co‐localizes with the rectosigmoid junction

open access: yesJournal of Anatomy, EarlyView.
At 5 weeks of development, the midgut has formed its primary loop (left). It is well established that the midgut is bounded cranially by the caudal end of the ventral mesentery and the presence of the common bile duct, but its caudal boundary remains to be established.
Hui Gao   +5 more
wiley   +1 more source

Spatiotemporal remodelling of the cloacal region determines the position of the anal opening in mouse embryos

open access: yesJournal of Anatomy, EarlyView.
In E13.25 mouse embryo, the urorectal septum consistently positioned on the dorsodistal side of the cloacal membrane. Through 3D reconstruction of the cloacal internal space, we revealed that the position of the anal opening is established prior to cloacal membrane rupture and is located at the junction between the hindgut lumen (blue) and an expanded ...
Weiyi Wang, Masayo Harada, Keiichi Akita
wiley   +1 more source

Contrast‐enhanced CT—Nephrotoxic or not? A critical review of propensity‐score‐adjusted studies

open access: yesJournal of Internal Medicine, EarlyView.
Abstract Retrospective, propensity‐score‐adjusted (PSA) studies have indicated to practitioners in the field that contrast‐induced acute kidney injury (AKI) after contrast‐enhanced CT (CECT) is of minor importance or even non‐existent. This has led to controversies between clinicians demanding CECT not to miss any diagnoses and radiologists reluctant ...
Ulf Nyman   +6 more
wiley   +1 more source

Catheter‐Associated Urinary Tract Infections in Children: An Evidence‐Informed Narrative Review of Diagnosis, Management and Prevention

open access: yesJournal of Paediatrics and Child Health, EarlyView.
ABSTRACT Catheter‐associated urinary tract infections (CAUTI) are a common healthcare‐associated infection in children and a major contributor to increased morbidity, prolonged hospital stays and higher healthcare costs. This narrative review uses an evidence‐informed approach highlighting recent paediatric literature (2000–2025) to provide an overview
Simon P. Paget   +4 more
wiley   +1 more source

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