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Multi-culture label-free quantitative cell migration sensing with single-cell precision.
Biomed Opt Express
January 2025
Warsaw University of Technology, Institute of Micromechanics and Photonics, 8 Sw. A. Boboli St., 02-525 Warsaw, Poland.
A fair comparison of multiple live cell cultures requires examining them under identical environmental conditions, which can only be done accurately if all cells are prepared simultaneously and studied at the same time and place. This contribution introduces a multiplexed lensless digital holographic microscopy system (MLS), enabling synchronous, label-free, quantitative observation of multiple live cell cultures with single-cell precision. The innovation of this setup lies in its ability to robustly compare the behaviour, i.
View Article and Find Full Text PDFA framework for assessing reliability of observer annotations of aerial wildlife imagery, with insights for deep learning applications.
PLoS One
January 2025
Division of Biological Sciences, US Fish and Wildlife Southwest Regional Office, Albuquerque, New Mexico, United States of America.
There is growing interest in using deep learning models to automate wildlife detection in aerial imaging surveys to increase efficiency, but human-generated annotations remain necessary for model training. However, even skilled observers may diverge in interpreting aerial imagery of complex environments, which may result in downstream instability of models. In this study, we present a framework for assessing annotation reliability by calculating agreement metrics for individual observers against an aggregated set of annotations generated by clustering multiple observers' observations and selecting the mode classification.
View Article and Find Full Text PDFReproductive strategies in loggerhead sea turtle : polyandry and polygyny in a Southwest Atlantic rookery.
PeerJ
January 2025
Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Laboratório de Genética e Evolução Molecular, Vitória, Espírito Santo, Brazil.
Sea turtles are highly migratory and predominantly inhabit oceanic environments, which poses significant challenges to the study of their life cycles. Research has traditionally focused on nesting females, utilizing nest counts and mark-recapture methods, while male behavior remains understudied. To address this gap, previous studies have analyzed the genotypes of females and hatchlings to indirectly infer male genotypes and evaluate the extent of multiple paternity within populations.
View Article and Find Full Text PDFKlotho attenuates epithelial‑mesenchymal transition of retinal pigment epithelial cells in subretinal fibrosis by suppressing the ERK1/2 and Wnt/β‑catenin signaling pathways.
Int J Mol Med
March 2025
Department of Ophthalmology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China.
Retinal pigment epithelial (RPE) cells undergoing epithelial‑mesenchymal transition (EMT) are a key factor in promoting the progression of subretinal fibrosis. The klotho protein and gene exert anti‑fibrotic effects in multiple fibrotic diseases. However, the mechanisms involved in the role of klotho are unclear in subretinal fibrosis.
View Article and Find Full Text PDFMeasuring trends in extinction risk: a review of two decades of development and application of the Red List Index.
Philos Trans R Soc Lond B Biol Sci
January 2025
BirdLife International, David Attenborough Building, Pembroke Street, Cambridge CB2 3QZ, UK.
The Red List Index (RLI) is an indicator of the average extinction risk of groups of species and reflects trends in this through time. It is calculated from the number of species in each category on the IUCN Red List of Threatened Species, with trends influenced by the number moving between categories when reassessed owing to genuine improvement or deterioration in status. The global RLI is aggregated across multiple taxonomic groups and can be disaggregated to show trends for subsets of species (e.
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