Results 41 to 50 of about 14,031 (243)
Paleometry: A brand new area in Brazilian science [PDF]
Materials Research, 2014 Paleometry is a promising research field that brings together different areas, such as physics and chemistry, applied to paleobiological issues. In spite of being recognized abroad, it is a new research field in Brazil.
Adriana de Oliveira Delgado +5 more
doaj +1 more source
The Fossilization Error Made by the Second Semester Students of Islamic Communication and Broadcasting Prody (Kpi) at Stai Bumi Silampari Lubuklinggau [PDF]
, 2018 Kesalahan yang memfosilisasi didalam mengucapkan kata dalam Bahasa Inggris didalam Penelitian ini difokuskan pada kesalahan mereka mengucapkan kata yang mempunyai huruf vocal (/i:/, /I/, /e/, /ӕ/) mahasiswa semester II, Prodi KPI (Komunikasi Penyiaran ...
Helandri, J. (Joni)
core
, 1999 Kolmogorov's three universal similarity hypotheses are extrapolated to describe scalar fields like temperature mixed by turbulence. By the analogous Kolmogorov third hypothesis for scalars, temperature dissipation rates chi averaged over lengths r > L_K ...
Artemyeva T. S. +10 more
core +1 more source
Fossilized bioelectric wire – the trace fossil Trichichnus [PDF]
Biogeosciences, 2014 Abstract. The trace fossil Trichichnus is proposed as an indicator of fossil bioelectric bacterial activity at the oxic–anoxic interface zone of marine sediments. This fulfils the idea that such processes, commonly found in the modern realm, should be also present in the geological past.
Kȩdzierski, M. +3 more
openaire +6 more sources
The Anatomical Record, EarlyView.Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano +5 more
wiley +1 more source
Phylogenies Without Fossils [PDF]
Evolution, 1994 Phylogenies that are reconstructed without fossil material often contain approximate dates for lineage splitting. For example, particular nodes on molecular phylogenies may be dated by known geographic events that caused lineages to split, thereby calibrating a molecular clock that is used to date other nodes.
Paul H, Harvey, Robert M, May, Sean, Nee
openaire +2 more sources
Intraspecific variation of cochlear morphology in bowhead and beluga whales
The Anatomical Record, EarlyView.Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley +1 more source
Tracing the Geochemical History of Eocene Fish Using X-ray Fluorescence [PDF]
EPJ Web of ConferencesA study of an Eocene fish fossil using portable XRF revealed distinct geochemical differences between the fossil and surrounding sediment. Elements like uranium, yttrium, arsenic, and phosphorus were found only in the fossil, while calcium and iron ...
R Pereira Luana +8 more
doaj +1 more source
Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, Estonia [PDF]
, 2015 The Estonian Journal of Earth Sciences is an open access journal and applies the Creative Commons Attribution 4.0 International License CC BY to all its papers (http://creativecommons.org/licenses/by/4.0/).
Ahlberg, PE +6 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty +3 more
wiley +1 more source