Results 41 to 50 of about 9,544 (216)
Variability of the content of active substances during Achillea collina Rchb. Alba ontogenesis
The fluctuation of essential oil, flavonoid and tannin content in Achillea collina Rchb. Alba (flos and herba millefolii) during ontogenesis was studied in this paper.
K. Karlová, K. Petříková
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Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
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Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs
Abstract Crocodilians, together with birds, are the only extant relatives to many extinct archosaur groups, making them highly important for interpreting paleopathological conditions in a phylogenetic disease bracketing model. Despite this, comprehensive data on osteopathologies in crocodilians remain scarce.
Alexis Cornille +6 more
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The present study describes ontogenic profile of mRNA expressions of hexokinase (HK; EC 2.7.1.1) and glucokinase (GK; EC 2.7.1.2, otherwise known as HKIV) that catalyze the first step of glucose metabolism by cells.
Tushar K. Roy +4 more
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Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli +6 more
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The work was done on female Wistar rats aged 1, 10, 20, 30, 60 days, 1 and 2 years after birth (5 animals in each age group). Identification of neurons containing calbindin and calretinin, was performed using labeled antibodies.
A. F. Budnik
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Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto +3 more
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EFFECT OF IMMUNE CELLS ON THE BEHAVIORAL ACTIVITY LEVEL OF MICE (СВАхC57BI/6)F1 DURING ONTOGENESIS
The features of forming of the orientation and exploratory behavior level (OEB) was established on sexually immature animals – mice (CBAxC57/Bl)F1, which underwent triple transplantation of splenocytes from adult syngeneic animals with a certain level of
O. S. Anikeeva +2 more
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Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
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Meaning and direction in foreign language teaching
This document explores the possibility to link to foreign lan - guage teaching practice in the classroom, two streams of theo - retical elements set by late research on neurosciences about the cognitive processes underling learning, and the elements from
Luis Carlos Estrada Naranjo
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