Results 41 to 50 of about 223,364 (391)
Larval development of Characidium orientale (Actinopterygii: Crenuchidae) a small Neotropical fish
Iheringia: Série Zoologia, 2022 The Characidium orientale Buckup & Reis, 1997 larvae development is described using specimens collected in the natural environment of Antas River, in the Taquari-Antas river basin, Rio Grande do Sul, Brazil.
Douglas Ticiani +3 more
doaj +1 more source
The evolution of hominin ontogenies [PDF]
Seminars in Cell & Developmental Biology, 2010 Since the beginnings of paleoanthropology, immature fossil hominin specimens have marked important but highly contested cornerstones of research. Long deemed as not representative of a fossil species' morphology, immature hominins are now in the center of scientific attention, and an increasing interest in evolutionary developmental questions has made ...
Zollikofer, C P E, Ponce de León, M S
openaire +3 more sources
Extraordinary morphological changes in valve morphology during the ontogeny of several species of the Australian ostracod genus Bennelongia (Crustacea, Ostracoda) [PDF]
, 2013 Ostracods belonging to the genus Bennelongia differ much in valve morphology between adults and juveniles. Adult valves are asymmetrical, characterised by a beak-like feature in the anteroventral region of the left valve, and, with some notable ...
De Deckker, Patrick, Martens, Koen
core +3 more sources
Ontogeny of GnRH systems [PDF]
Bioscientifica Proceedings, 2019 In all vertebrate species studied, the main central population of GnRH neurones, which produces the final messages regulating reproduction, originates outside the brain. Early during fetal life, they appear in the olfactory placode epithelium and then migrate toward the base of the telencephalon in close association with the nervus terminalis ...
Caldani, M +3 more
openaire +5 more sources
A Comparative Biology of Microglia Across Species
Frontiers in Cell and Developmental Biology, 2021 Microglia are unique brain-resident, myeloid cells. They have received growing interest for their implication in an increasing number of neurodevelopmental, acute injury, and neurodegenerative disorders of the central nervous system (CNS).
Kaushik Sharma +5 more
doaj +1 more source
Case Reports in Medicine, 2017 Treatment of pelvic neoplasms with radiotherapy may develop sequelae, especially RHC. An 85-year-old male patient was admitted to a hospital emergency with gross hematuria leading to urinary retention and was diagnosed with RHC.
José Carlos Rodrigues Nascimento +5 more
doaj +1 more source
Ecology and Evolution, 2021 Stable isotopes represent a unique approach to provide insights into the ecology of organisms. δ13C and δ15N have specifically been used to obtain information on the trophic ecology and food‐web interactions. Trophic discrimination factors (TDF, Δ13C and
Kristin Scharnweber +3 more
doaj +1 more source
Acetaldehyde involvement in ethanol's postabsortive effects during early ontogeny [PDF]
, 2013 Clinical and biomedical studies sustains the notion that early ontogeny is a vulnerable window to the impact of alcohol. Experiences with the drug during these stages increase latter disposition to prefer, use or abuse ethanol.
Abate, Paula +2 more
core +1 more source
Toward a physiological explanation of juvenile growth curves [PDF]
, 2020 Juvenile growth curves are generally sigmoid in shape: Growth is initially nearly exponential, but it slows to near zero as the animal approaches maturity.
Adair T.H. +5 more
core +1 more source
Ontogeny of the Tibial Spur in \u3ci\u3eMegamelus Davisi\u3c/i\u3e (Homoptera: Delphacidae) and its Bearing on Delphacid Classification [PDF]
, 2017 The forms of the nymphal tibial spur in Megamelus davisi Van Duzee, and their relation to Muir\u27s classification of delphacid subfamilies and tribes, are ...
McPherson, J. E, Wilson, S. W
core +2 more sources