Results 31 to 40 of about 4,012 (252)

Hypergene alterations of succinite and its vulnerability under various environmental conditions

open access: yesGeo&Bio, 2021
The article describes the alteration of succinite under conditions of hypergenesis as a result of oxidation, including a change in colour, contraction of the outer surface and the appearance of microcracks, changes in the construction of the outer ...
U. Naumenko   +3 more
doaj   +1 more source

Taphonomic experiments imply a possible link between the evolution of multicellularity and the fossilization potential of soft‐bodied organisms

open access: yesEcology and Evolution, 2021
The reliability of evolutionary reconstructions based on the fossil record critically depends on our knowledge of the factors affecting the fossilization of soft‐bodied organisms.
Elena Naimark   +9 more
doaj   +1 more source

Experimental Aqueous Alteration of Cortical Bone Microarchitecture Analyzed by Quantitative Micro-Computed Tomography

open access: yesFrontiers in Earth Science, 2021
Bones are one of the most common vertebrate fossil remains and are widely used as proxy archives in palaeontology and archaeology. Previous histological analyses have shown that bone microarchitecture is mostly well-preserved in fossil remains, but ...
Anna G. Kral   +3 more
doaj   +1 more source

Are Grammatical Morphemes Hard or Soft?

open access: yesWorking Papers in Applied Linguistics and TESOL, 2015
For the past few decades, one of the most persistent criticisms against second language acquisition (SLA) research has been the derivative nature of its origin in establishing its theoretical and methodological foundation.
Jookyoung, Jung
doaj   +1 more source

Molecular Taphonomy of Heme: Chemical Degradation of Hemin under Presumed Fossilization Conditions

open access: yesMolecules, 2023
The metalloporphyrin heme acts as the oxygen-complexing prosthetic group of hemoglobin in blood. Heme has been noted to survive for many millions of years in fossils. Here, we investigate its stability and degradation under various conditions expected to
Mariam Tahoun   +4 more
doaj   +1 more source

FOSSILIZATION, COMMUNICATIVE RATIONALITY AND COMMUNICATION STRATEGIES IN SECOND LANGUAGE LEARNING

open access: yesRUDN Journal of Language Studies, Semiotics and Semantics, 2019
Fossilization was first defined in 1972 as a failure, or an ultimate attainment in adult second language acquisition that falls short of native-speaker competence. It represents a final stage in the interlanguage development of the individual learner and
Zhanna Evgenievna Vavilova   +1 more
doaj   +1 more source

Taphonomy of a Mysticete Whale from the Lower Pliocene of the Coast of Cádiz (Spain)

open access: yesJournal of Marine Science and Engineering, 2023
A fossil mysticete was discovered along the southwestern coast of Spain, occurring in a block detached from the Neogene deposits exposed along a coastal cliff at the locality of Conil de la Frontera (Cádiz, Spain).
Giulia Bosio   +6 more
doaj   +1 more source

Fossils upon Fossils [PDF]

open access: yesNature, 1967
Vertebrate Paleontology By Alfred Sherwood Romer. Third edition. Pp. viii + 468. (Chicago and London: University of Chicago Press, 1966.) $10; 72s.
openaire   +1 more source

An Analysis on IL Fossilization Phenomenon in Students Writing Performance

open access: yes, 2020
This present study tries to investigate the students’ writing performance to know whether interlanguage fossilization is occurs or not. The primary goal of this research is to give information relating interlanguage fossilization in students’ writing ...
Mufid, Muhammad Khoirul   +2 more
core   +2 more sources

Are Grammatical Morphemes Hard or Soft?

open access: yesStudies in Applied Linguistics & TESOL, 2009
For the past few decades, one of the most persistent criticisms against second language acquisition (SLA) research has been the derivative nature of its origin in establishing its theoretical and methodological foundation.
Jookyoung Jung
doaj   +1 more source

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