Results 201 to 210 of about 4,791 (250)

Image Databases for Pollen Grain Classification: Availability, Quality, and Challenges

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 16, Issue 3, September 2026.
Overview of the study process, from identifying gaps in pollen image databases to a systematic search across six libraries, resulting in 73 final studies, 18 datasets (10 public), and a seven‐point standardization framework proposed under FAIR principles.
Heloise Acco Tives Bedin   +4 more
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

open access: yesX-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri   +14 more
wiley   +1 more source

A Versatile Cytochemical Labeling Technique as a Forensic Decision-Support Tool for <i>In Situ</i> Detection of Cell-Derived Markers in Invisible Biological Traces. [PDF]

open access: yesAnal Chem
Bastat M   +12 more
europepmc   +1 more source

Multielemental Analysis in Rice Grains by Total Reflection X‐Ray Fluorescence

open access: yesX-Ray Spectrometry, Volume 55, Issue 5, Page 743-753, September/October 2026.
ABSTRACT Rice ( Oryza sativa ) is a staple food cultivated worldwide and represents a significant source of essential nutrients for humans. However, this cereal may also contain potentially toxic elements including chromium, arsenic, and lead typically present at trace concentrations (ng.g−1).
F. T. S. Tsuyama   +8 more
wiley   +1 more source

In the trail of the crime scene dog: Processing of human DNA from outdoor samples. [PDF]

open access: yesForensic Sci Int Synerg
Forsberg C   +3 more
europepmc   +1 more source

New evidence for Early Pleistocene use of fire at Wonderwerk Cave (South Africa). [PDF]

open access: yesPLoS One
Marin-Monfort MD   +11 more
europepmc   +1 more source

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