Results 181 to 190 of about 484,778 (239)

Diamond compound refractive lenses for high‐energy dark field X‐ray microscopy

open access: yesJournal of Synchrotron Radiation, EarlyView.
In this work, we compare and quantify the performance of compound refractive lenses fabricated from single‐crystal diamond against conventional beryllium and aluminium counterparts under bright‐field conditions and show dark‐field imaging applications for the diamond compound refractive lens.Compound refractive lenses (CRLs) are a type of X‐ray optics ...
S. Staeck   +6 more
wiley   +1 more source

Proteomic Sex Estimation From Embedded Tooth Enamel

open access: yesArchaeometry, EarlyView.
ABSTRACT Teeth hold insights into childhood diet, health and demography—including chromosomal sex. Proteomic analysis can detect peptide biomarkers from amelogenin genes encoded on X and Y chromosomes, allowing sex estimation. Embedding resins, necessary for thin sectioning teeth, can damage analytical systems, preventing proteomic analysis. We present
E. L. Sudron   +11 more
wiley   +1 more source

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook   +38 more
wiley   +1 more source

SC‐550: A Sintered Calcite Reference Material for In Situ U‐Pb Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points New calcite reference material (SC‐550) produced by high‐temperature and high‐pressure sintering of nano‐particulate powder from a microbial limestone. Homogeneous U content (2.3 ± 0.4 μg g‐1) and U‐Pb isotope ratios (< 0.6% RSD for 207Pb/206Pb; < 3% RSD for 238U/206Pb).
Lorenzo Tavazzani   +7 more
wiley   +1 more source

Topical Alternatives for Preventing and/or Reducing Sensitivity Caused by In‐Office Tooth Bleaching: A Scoping Review

open access: yesInternational Journal of Dental Hygiene, EarlyView.
ABSTRACT Objective This scoping review aimed to (1) map, analyse, interpret and synthesize data from clinical trials on topical alternatives used to prevent and/or reduce sensitivity caused by in‐office tooth bleaching; and (2) characterize the available evidence on their use for managing sensitivity.
Erik Vinícius Martins Jácome   +3 more
wiley   +1 more source

Incorporation of Calcium Polyphosphate Sub‐Microparticles in Commercial Toothpastes and Their Effects on Dental Enamel

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Dental bleaching with 35% hydrogen peroxide (HP) can cause deleterious effects on the mineral content of enamel. In this regard, remineralizing submicroparticles of calcium polyphosphate (CaPP) have been investigated for their ability to deposit calcium ions into enamel's hydroxyapatite.
Julliana Andrade da Silva   +4 more
wiley   +1 more source

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