Results 41 to 50 of about 9,544 (216)

Variability of the content of active substances during Achillea collina Rchb. Alba ontogenesis

open access: yesHorticultural Science, 2005
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
doaj   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
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
wiley   +1 more source

Skeletal pathologies in extant crocodilians as a window into the paleopathology of fossil archosaurs

open access: yesThe Anatomical Record, EarlyView.
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
wiley   +1 more source

Ontogenic Profile of Hexokinase and Glucokinase mRNA Expressions in Embryonic Chicken Liver and Muscle

open access: yesThe Journal of Poultry Science, 2013
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
doaj   +1 more source

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

open access: yesThe Anatomical Record, EarlyView.
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
wiley   +1 more source

DYNAMICS OF EXPRESSION OF CALBINDIN AND CALRETINININ THE NEURONS OF THE INTESTINE IN POSTNATAL ONTOGENESIS

open access: yesСеченовский вестник, 2017
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
doaj  

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
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
wiley   +1 more source

EFFECT OF IMMUNE CELLS ON THE BEHAVIORAL ACTIVITY LEVEL OF MICE (СВАхC57BI/6)F1 DURING ONTOGENESIS

open access: yesБюллетень сибирской медицины, 2015
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
doaj   +1 more source

Re‐evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity

open access: yesThe Anatomical Record, EarlyView.
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
wiley   +1 more source

Meaning and direction in foreign language teaching

open access: yesPráxis Pedagógica, 2005
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
doaj  

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