Results 241 to 250 of about 74,970 (357)

Assessment and Correction of Non‐Linearity Effects for In Situ Rb‐Sr Geochronology Applied to High 87Rb/86Sr Mica

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Measurement of 86Sr at count rates < 1500 cps can result in statistical bias. Non‐linear signals in analogue detection mode (e.g., Rb) present a challenge for accurately dating high 87Rb/86Sr mica (> 1000). Accounting for these considerations, high 87Rb/86Sr mica are dated here with accuracies of ∼ 1%.
Duane C. Petts   +5 more
wiley   +1 more source

Resolving Micrometre‐Scale Zircon Growth in Silicic Systems by 7 μm LA‐MC‐ICP‐MS U‐Pb Dating: Linking Petrology and Geochronology in Silicic Volcanic and Granitic Rocks from Victoria, Australia

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points 7 μm spot‐diameter LA‐MC‐ICP‐MS analyses yield accurate zircon U‐Pb ages. 1013 Ω amplifier resistors improve low‐signal Pb measurements. Saturn correction protocols minimise down‐hole fractionation effects. We present a systematic evaluation of high spatial‐resolution zircon U‐Pb dating using a Thermo Scientific Neoma multi‐collector ICP‐MS ...
Cristiano Lana, John D. Clemens
wiley   +1 more source

Dentine Regeneration With Calcium Strontium Silicate: In Vitro Odontogenic Differentiation, Antimicrobial Activity, Immunomodulation and In Vivo Pulpotomy in Rat Molars

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim This study examined the in vitro and in vivo performance of calcium strontium silicate (CSR) as a novel biomaterial for vital pulp therapy (VPT), assessing its odontogenic differentiation, antibacterial activity, immunomodulation, inflammatory response and dentine regeneration potential compared to calcium silicate (CS) and Mineral ...
Mohamed Mahmoud Abdalla   +4 more
wiley   +1 more source

Incipient continent formation by shallow melting of an altered mafic protocrust. [PDF]

open access: yesNat Commun
Hartnady MIH   +8 more
europepmc   +1 more source

Gender Justice in the Triple Planetary Crisis: A Scoping Review

open access: yesJournal of Advanced Nursing, EarlyView.
ABSTRACT Aim To identify and report how gender justice is conceptualised and discussed in contemporary health literature in relation to the Triple Planetary Crisis of climate change, pollution and biodiversity loss, with a particular focus on the experiences of women and gender‐diverse populations, and the representation of nurses and other healthcare ...
Catelyn Richards   +7 more
wiley   +1 more source

Experimentally testing the function of anal fins in the bluefin killifish, Lucania goodei

open access: yesJournal of Fish Biology, EarlyView.
Abstract Anal fins are thought to affect many functions, including swimming, sperm flow and signalling. However, there are few experimental demonstrations of these functions. We manipulated male anal fins by placing a cut in the fin. We found that cut males had lower fertilization rates than uncut males.
Edie Smelko, Rebecca C. Fuller
wiley   +1 more source

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