Results 71 to 80 of about 1,026 (242)

Anatomy and variation in the paraphyletic Mosasaurus lemonnieri assemblage from the Craie phosphatée de ciply, Belgium

open access: yesThe Anatomical Record, EarlyView.
Abstract Nineteenth century excavations of the Ciply‐Malogne Phosphatic Chalk Formation in Hainaut, Belgium, yielded over 50 partial mosasaur skeletons, the majority of which were referred to the species Mosasaurus lemonnieri Dollo, 1889. In the years since, this taxon has experienced a complicated taxonomic history, and its exceptional hypodigm has ...
Henry S. Sharpe   +3 more
wiley   +1 more source

Cristid obliqua morphology as a correlate of diet in lorisoids

open access: yesThe Anatomical Record, EarlyView.
Abstract Methods for elucidating dietary patterns from dental morphology have provided much insight into molar form, function, and diet in extinct taxa. However, many methods rely on the collection of homologous landmarks (like shearing crest lengths), or computationally intensive and nuanced metrics that capture shape (like dental topography). Here, a
Keegan R. Selig
wiley   +1 more source

A Crown-Following Approach to the Automatic Delineation of Individual Tree Crowns in High Spatial Resolution Aerial Images

open access: yesCanadian Journal of Remote Sensing, 1995
RESUMELa disponibilite d'images numeriques multispectrales aeriennes georeferencees de haute resolution spatiale, telles qu'obtenues par le MEIS-II, pourrait conduire a de nouvelles facons d'acquerir les inventaires d'amenagement forestier. Le potentiel d'une interpretation humaine assistee par ordinateur et faite a l'ecran est un bon exemple des ...
openaire   +1 more source

Exploring the potential of cluster analysis in identifying disease phenotypes in CPPD: Moving from intuition to insight

open access: yesArthritis &Rheumatology, Accepted Article.
Background Calcium pyrophosphate deposition (CPPD) disease is a heterogeneous condition and is frequently misdiagnosed due to the different clinical presentations and variable disease progression. Aim of this study is to identify clinical phenotypes of CPPD disease by integrating real‐world data from two datasets. Methods Data from the COLCHICORT trial
Greta Pellegrino   +20 more
wiley   +1 more source

Evaluating a Weighted Ensemble of Deep Learning Models for Individual Tree Crown Delineation from LiDAR Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This study investigates a weighted ensemble framework for individual tree crown (ITC) delineation using LiDAR-derived canopy height models (CHMs). Three deep learning models, Mask R-CNN, U-Net, and YOLO were first independently evaluated to establish the
D. Gaspar, B. Hu, Q. Li
doaj   +1 more source

Metal nanostructure‐coupled label‐free localized surface plasmon resonance biosensors for rapid and sensitive disease diagnosis

open access: yesBMEMat, EarlyView.
LSPR biosensing enables rapid, sensitive, and low‐sample‐volume detection of biomarkers, with broad applications in diagnosing cancer, infectious, and chronic diseases. Advances in nanostructure design, micro/nanofabrication, and microfluidic integration have expanded the potential of LSPR sensors in biomedical diagnostics.
Zhaoxin Geng   +4 more
wiley   +1 more source

Adaptive multi-source instance segmentation for individual tree crown delineation using UAV multispectral imagery and canopy height models

open access: yesEcological Informatics
Accurate delineation of individual tree crowns is essential for precision forest management, carbon accounting, and ecological monitoring, yet it remains challenging due to crown overlap, shadowing effects, and the limited ability of single-source ...
Zhao Sun   +7 more
doaj   +1 more source

Integration of tree allometry rules to treetops detection and tree crowns delineation using airborne lidar data

open access: yesiForest - Biogeosciences and Forestry, 2017
Airborne laser scanning (ALS) has recently gained increasing attention in forestry, as ALS data may facilitate the efficient assessment of forest inventory attributes and ecological indicators related to forest stand structure.
Sačkov I, Hlásny T, Bucha T, Juriš M
doaj   +1 more source

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

Deep learning-based automatic tree-level crown detection from high-resolution UAV imagery for aboveground carbon stock estimation

open access: yesFrontiers in Plant Science
Accurate delineation of individual tree crowns is essential for forest resource management and carbon stock estimation. However, traditional manual interpretation is inefficient under complex forest conditions, and existing deep learning-based object ...
Hancong Fu   +4 more
doaj   +1 more source

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