Results 251 to 260 of about 133,957 (286)

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich   +4 more
wiley   +1 more source

Changes in tactile acuity and their association with balance impairment in type 2 diabetes: A 2-year cohort study. [PDF]

open access: yesDiabetol Metab Syndr
Janakiraman B   +6 more
europepmc   +1 more source

A Common Reference Material for Mass‐Dependent Sn Isotope Compositions: An Inter‐Laboratory Calibration Approach

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points We recommend using the notation δ122/118SnNIST SRM 3161a for mass‐dependent Sn isotope data. We derived conversion factors relative to NIST SRM 3161a for Puri Sn CEZA (0.132 ± 0.011‰), Sn Lyon (0.229 ± 0.016‰), Sn IPGP (0.162 ± 0.018‰). Tin isotope compositions are presented for SPEX CertiPrep Sn and nine USGS reference materials.
Aurélia C.E. Meister   +10 more
wiley   +1 more source

Ossifying spindled and epithelioid tumour: Expanding the clinical and morphologic spectrum of a recently described entity

open access: yesHistopathology, EarlyView.
Ossifying spindled and epithelioid tumour (OSET) can show unusual morphologic features, including minimal or absent peripheral ossification, eosinophil‐rich stroma, increased mitotic activity (≥5 mitotic figures per 10 high‐power fields), and necrosis.
Rayan M Sibira   +9 more
wiley   +1 more source

Exploring the Potential of Scales to Assess Different Types of Ataxia: Meta-review. [PDF]

open access: yesCerebellum
Racero-Ríos S   +2 more
europepmc   +1 more source

Warmest spring on record in the United Kingdom provides insights into how a specialist spring‐flying butterfly may respond to future climate change

open access: yesInsect Conservation and Diversity, EarlyView.
Previous work indicates that the Duke of Burgundy butterfly, a specialist spring‐flying species in the United Kingdom, is poor at buffering its thoracic temperature as air temperatures rise. Taking advantage of unusually warm spring weather, we collected new field data and found that the species can lower its thoracic temperature more than expected in ...
Rosa M. Pollard Smith   +5 more
wiley   +1 more source

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