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Stone Tool Use by Black-Horned Capuchin Monkeys (Sapajus nigritus cucullatus) in an Urban Park in Londrina, Brazil.
Am J Primatol
January 2025
Ecology and Animal Behavior Laboratory, Department of Animal and Plant Biology, State University of Londrina, Londrina, Paraná, Brazil.
Tool use to crack open palm nuts has been observed extensively in some capuchin monkey species. However, for southern black-horned capuchin monkeys (Sapajus nigritus cucullatus), there is only one published record of stone tool use from the 1990s, from an urban park in Londrina, Brazil. In the present study, we returned to this urban park to systematically investigate the hammer-and-anvil sites used to crack nuts by this capuchin monkey population.
View Article and Find Full Text PDFIdentification model of mine water inrush source based on XGBoost and SHAP.
Sci Rep
January 2025
Ordos Institute of Liaoning Technical University, Liaoning Technical University, Ordos, 017000, China.
This study focuses on the construction and interpretation of a mine water inrush source identification model to enhance the precision and credibility of the model. For water inrush source identification and feature analysis, a novel method combining XGBoost and SHAP is suggested. The model uses Ca, Mg, K + Na, HCO, Cl, SO, Hardness, and pH as discriminators, and the key parameters in the XGBoost model are optimized by introducing the improved sparrow search algorithm.
View Article and Find Full Text PDFIn silico analysis of human herpes virus-8 genome: a comparison of the K1, VR1, and VR2 regions for genotyping and global geographical distribution.
Sci Rep
January 2025
HIV/AIDS Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran.
Investigations of the K1 gene revealed six main genotypes clustered according to geography. Here, the global distribution and HHV8 genotyping using the K1 gene and two hypervariable regions (VR1 and VR2) were evaluated. We searched GenBank for 6,889 HHV8-K1 genes via various keywords, selecting sequences longer than 730 bp.
View Article and Find Full Text PDFFunctional protein mining with conformal guarantees.
Nat Commun
January 2025
Innovative Genomics Institute; University of California, Berkeley, CA, USA.
Molecular structure prediction and homology detection offer promising paths to discovering protein function and evolutionary relationships. However, current approaches lack statistical reliability assurances, limiting their practical utility for selecting proteins for further experimental and in-silico characterization. To address this challenge, we introduce a statistically principled approach to protein search leveraging principles from conformal prediction, offering a framework that ensures statistical guarantees with user-specified risk and provides calibrated probabilities (rather than raw ML scores) for any protein search model.
View Article and Find Full Text PDFFirst report of subsp. infecting southern shagbark hickory () in Georgia, USA.
Plant Dis
January 2025
USDA Agricultural Research Service, 9611 S. Riverbend Ave, Parlier, District of Columbia, United States, 93648;
Southern shagbark hickory (Carya carolinae-septentrionalis) is one of several deciduous trees in the family Juglandaceae and genus Carya that are native to North America. Southern shagbark hickory has a restricted distribution to the Southeast U.S.
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