Results 181 to 190 of about 692,756 (335)

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

open access: yesBoreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein   +19 more
wiley   +1 more source

Applications of highly nonlinear dispersion tailored lead silicate fibres for high speed optical communications

open access: yes
Recent advances in optical fibre technology, most notably in the area of microstructured optical fibres (MOFs), offer a host of new opportunities within future high speed communication systems.
Petrovich, M.N.   +10 more
core   +1 more source

Revitalization in Traumatized Immature Teeth With External Inflammatory Root Resorption: A Systematic Review

open access: yesDental Traumatology, EarlyView.
ABSTRACT Introduction This study aimed to evaluate whether revitalization can be indicated in the treatment of traumatized immature teeth with external inflammatory root resorption (EIRR). Methods The protocol of the review was developed in accordance with the PRISMA checklist and registered in the PROSPERO database (CRD42023446609).
Ghina Al Khourdaji   +4 more
wiley   +1 more source

Capacity increase for sodium silicate dissolving plant

open access: yes, 2007
Tässä työssä tutkittiin natriumsilikaatin (vesilasi) liuotukseen ja suodatukseen vaikuttavia tekijöitä. Työssä pyrittiin optimoimaan natriumsilikaatin liuotus- ja suodatuskapasiteetti J. M.
Rantanen, Juha
core  

Afghanite: A New Silicate‐Matrix Reference Material for In Situ Halogen and Sulfur Microanalysis

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points A new silicate matrix reference material for in situ chlorine and sulfur determination. Homogeneous across all measured elements. No matrix effects for Cl when calibrating silicate matrices, in contrast to scapolite, which causes systematic Cl overestimation of up to 13%.
Sebastian Stumpf   +7 more
wiley   +1 more source

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