Results 41 to 50 of about 31,311 (333)

The Use of Intrinsic Markers for Studying the Migratory Movements of Bats

open access: yesAnimals, 2021
Mortality of migratory bat species at wind energy facilities is a well-documented phenomenon, and mitigation and management are partially constrained by the current limited knowledge of bat migratory movements.
Caralie T. Brewer   +2 more
doaj   +1 more source

Isotope shifts of natural Sr+ measured by laser fluorescence in a sympathetically cooled Coulomb crystal [PDF]

open access: yes, 2014
We measured by laser spectroscopy the isotope shifts between naturally-occurring even-isotopes of strontium ions for both the $5s\,\,^2S_{1/2}\to 5p\,\,^2P_{1/2}$ (violet) and the $4d\,\,^2D_{3/2}\to 5p\,\,^2P_{1/2}$ (infrared) dipole-allowed optical ...
Dubessy, Romain   +5 more
core   +4 more sources

Unravelling biocultural population structure in 4th/3rd century BC Monterenzio Vecchio (Bologna, Italy) through a comparative analysis of strontium isotopes, non-metric dental evidence, and funerary practices. [PDF]

open access: yesPLoS ONE, 2018
The 4th century BC marks the main entrance of Celtic populations in northern Italy. Their arrival has been suggested based on the presence of Celtic customs in Etruscan mortuary contexts, yet up to now few bioarchaeological data have been examined to ...
Rita Sorrentino   +17 more
doaj   +1 more source

Degenerate quantum gases of strontium

open access: yes, 2014
Degenerate quantum gases of alkaline-earth-like elements open new opportunities in research areas ranging from molecular physics to the study of strongly correlated systems. These experiments exploit the rich electronic structure of these elements, which
Killian, Thomas C.   +2 more
core   +1 more source

Volcanism and Volcanic Rocks in Antarctica

open access: yesAntarctic Record, 1977
The distribution of volcanoes in Antarctica, especially those of the later part of Cenozoic time, has considerable bearing on any interpretations of orogenic patterns or history.
Hajime KURASAWA
doaj   +1 more source

New Isotopes of Strontium and Barium [PDF]

open access: yesNature, 1931
APPLICATION of high resolution to accelerated anode rays has now provided improved mass-spectra of these two elements. Strontium shows a third isotope 87 in addition to those already observed. Results with barium were only obtained with great difficulty.
openaire   +1 more source

Strontium isotope stratigraphy in the Late Cretaceous: Numerical calibration of the Sr isotope curve and intercontinental correlation for the campanian [PDF]

open access: yes, 1993
The white Chalk exposed in quarries at Lagerdorf and Kronsmoor, northwestern Germany, provides a standard section for the European Upper Cretaceous.
Chen, M   +4 more
core   +1 more source

Production of very-high-$n$ strontium Rydberg atoms

open access: yes, 2013
The production of very-high-$n$, $n\sim300$-500, strontium Rydberg atoms is explored using a crossed laser-atom beam geometry. $n$$^{1}$S$_{0}$ and $n$$^{1}$D$_{2}$ states are created by two-photon excitation via the 5s5p $^{1}$P$_{1}$ intermediate state
Burgdörfer, Joachim   +7 more
core   +1 more source

Copper Doping Enhances the Activity and Selectivity of Atomically Precise Ag44 Nanoclusters for Photocatalytic CO2 Reduction

open access: yesAdvanced Functional Materials, EarlyView.
By a simple anti‐Galvanic reaction, up to six copper atoms could be preferably doped into the Ag2(SR)5 staple motifs and Ag20 dodecahedral shell of an atomically precise Ag44(SR)30 nanocluster. When anatase TiO2 is used as substrate, the (AgCu)44/TiO2 photocatalyst exhibited much improved activity in photocatalytic CO2 reduction compared to Ag44/TiO2 ...
Ye Liu   +5 more
wiley   +1 more source

Study on identification model of water inrush source from adjacent limestone aquifer in Paner Coal Mine based on strontium isotope

open access: yesMeikuang Anquan
Mine sudden water is one of the most threatening geological hazards during mining production, so rapid and effective identification of sudden water sources is the key to prevent mine water damage.
Dun WU   +4 more
doaj   +1 more source

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