Results 21 to 30 of about 14,153 (259)

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

Bayesian total evidence dating reveals the recent crown radiation of penguins [PDF]

open access: yes, 2016
The total-evidence approach to divergence-time dating uses molecular and morphological data from extant and fossil species to infer phylogenetic relationships, species divergence times, and macroevolutionary parameters in a single coherent framework ...
Drummond, Alexei J.   +5 more
core   +5 more sources

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

On the taxonomic resolution of pollen and spore records of Earth’s vegetation [PDF]

open access: yes, 2014
Premise of research. Pollen and spores (sporomorphs) are a valuable record of plant life and have provided information on subjects ranging from the nature and timing of evolutionary events to the relationship between vegetation and climate.
Mander, Luke, Punyasena, Surangi W.
core   +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

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

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

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

Evidence of microbial activity from a shallow water whale fall (Voghera, northern Italy) [PDF]

open access: yes, 2012
The fossil bones, associated carbonate cements and enclosing concretion of a Miocene mysticete from inner shelf deposits (Monte Vallassa Formation, northern Italy) were analyzed for evidence of microbial activity. Optical and scanning electron microscopy,
Cavalazzi, B   +5 more
core   +4 more sources

Theory of endogenous and exogenous motivation in L2 migration

open access: yesPer Linguam : A Journal of Language Learning, 2015
Implied in theories of Second Language Acquisition (SLA) is the notion that language learning is analogous to obtaining or acquiring a possession – thus the use of the term ‘acquisition.’ While this interpretation has gone relatively unchallenged in the ...
Kambon, Obadele Bakari
doaj   +1 more source

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