Results 1 to 10 of about 429,402 (391)

Amber [PDF]

open access: yesCurrent Biology, 2019
David Grimaldi introduces amber and the fossils contained therein.
D. Grimaldi
openaire   +3 more sources

Exploration of responsive photonic arrays fabricated by two photon lithography [PDF]

open access: yesEPJ Web of Conferences, 2023
Responsive hydrogel photonic structures were fabricated using two-photon lithography. The design versatility of two-photon lithography provides for unprecedented manipulation of transmittance and reflectance spectra, producing distinct structural color ...
Qian Jing   +5 more
doaj   +1 more source

Robust all-dielectric high Q-factor metasurface for sensing [PDF]

open access: yesEPJ Web of Conferences, 2023
All-dielectric metasurfaces have seen a recent surge of interest as an alternative to plasmonic devices, due to low losses and desirable optical properties.
McCormack Oisin   +3 more
doaj   +1 more source

A tardigrade in Dominican amber [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2021
Tardigrades are a diverse group of charismatic microscopic invertebrates that are best known for their ability to survive extreme conditions. Despite their long evolutionary history and global distribution in both aquatic and terrestrial environments, the tardigrade fossil record is exceedingly sparse.
Ninon Robin   +6 more
openaire   +3 more sources

Single pulse all-optical toggle switching of magnetization without gadolinium in the ferrimagnet Mn2RuxGa

open access: yesNature Communications, 2020
Femtosecond laser pulses allow for extremely fast switching of magnetization in ferromagnetic films, but all examples so far contained gadolinium. Here the authors demonstrate room temperature all-optical toggle switching in a ferrimagnetic manganese ...
C. Banerjee   +8 more
doaj   +1 more source

TEM and EELS characterization of Ni–Fe layered double hydroxide decompositions caused by electron beam irradiation

open access: yesnpj 2D Materials and Applications, 2021
Electron irradiation of Ni–Fe layered double hydroxides (LDHs) was investigated in the transmission electron microscope (TEM). The initial structure possessed a flat hexagonal morphology made up of crystalline domains with a well-defined hexagonal ...
Christopher Hobbs   +3 more
doaj   +1 more source

A new species of Bocchus from upper Eocene Rovno amber (Hymenoptera, Dryinidae) [PDF]

open access: yesJournal of Hymenoptera Research, 2022
A new fossil species of Dryinidae (Hymenoptera, Chrysidoidea) from upper Eocene Rovno amber (Ukraine) is described: Bocchus rex sp. nov. It is compared with two other species of Bocchus known from European amber: B.
Massimo Olmi   +6 more
doaj   +3 more sources

A microworld in Triassic amber [PDF]

open access: yesNature, 2006
Amber provides an effective medium for conservation of soft-bodied microorganisms, but finds older than 135 million years are very rare and have not so far contained any microbial inclusions. Here we describe 220-million-year-old droplets of amber containing bacteria, fungi, algae and protozoans that are assignable to extant genera.
SCHMIDT AR   +3 more
openaire   +5 more sources

The first fossil cyphophthalmid harvestman from Baltic amber [PDF]

open access: yes, 2011
The first fossil cyphophthalmid harvestman (Opiliones: Cyphophthalmi) from Palaeogene (Eocene) Baltic amber is described. This is only the third fossil example of this basal harvestman lineage; the others being from the probably slightly younger ...
Dunlop, Jason A., Mitov, Plamen G.
core   +2 more sources

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