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A Data-Driven Approach for Comparing Gaze Allocation Across Conditions
Jack Prosser
,Anna Metzger
,Matteo Toscani
Posted: 19 February 2026
Evaluating Biodiversity Metrics for Detecting Climate‑Driven Ecological Change
Attila Haris
,Zsolt Józan
,Attila Balázs
,George Japoshvili
,György Csóka
,Anikó Hirka
Posted: 19 February 2026
A Purely Mathematical Derivation of the Fine-Structure Constant Within 1.62σ of CODATA 2022
Christian Macedonia
Posted: 19 February 2026
Morphological Assessment of Stage HH38 of the Japanese Quail (Coturnix japonica) Heart by Micro‐Sonogram
Jaden Roe
,Ashlyn Benavides
,Michael Filla
,Douglas Bittel
,Geetha Haligheri
,James O'Brien Jr.
,Nataliya Kibiryeva
A challenge of studying mammalian cardiac embryogenesis is the limited ability to perform experimental manipulations in animal models. The avian embryo is widely accepted as a model for mammalian heart developmental studies. In this study, we establish the methodology and protocols for studying the Japanese quail (Coturnix japonica) heart at embryonic day 10 (HH38) using the FUJIFILM VisualSonics Vevo 3100 ultrasound system equipped with a MX550D small animal cardiology transducer. These protocols were designed to measure right ventricular wall thickness, pulmonary artery diameter, and the outflow velocities of the right ventricular outflow tract (RVOT) and the pulmonary artery (PA), thereby establishing baseline parameters of the normally developing quail morphology. Quail embryos are an ideal model for cardiovascular research due to their short incubation period (16-17 days), experimental accessibility, and strong similarities to mammalian heart development. These developmental similarities include, but are not limited to, looping, chamber septation, and the development of a true four-chamber heart. High-resolution imaging modalities, including ultrasound and optical coherence tomography, enable noninvasive, real-time visualization of cardiac morphology and function throughout development. Echocardiography allows for quantitative and qualitative assessments of myocardial structure and cardiac hemodynamics. The similarity to the mammalian heart, combined with rapid embryogenesis, makes quail embryos a valuable model for investigating congenital heart defects, genetic modifications, and fundamental cardiac developmental processes. In this study, we describe reproducible incubation protocols and baseline echocardiographic parameters used to evaluate morphological and physiological changes in the developing embryonic quail heart on embryonic day 10.
A challenge of studying mammalian cardiac embryogenesis is the limited ability to perform experimental manipulations in animal models. The avian embryo is widely accepted as a model for mammalian heart developmental studies. In this study, we establish the methodology and protocols for studying the Japanese quail (Coturnix japonica) heart at embryonic day 10 (HH38) using the FUJIFILM VisualSonics Vevo 3100 ultrasound system equipped with a MX550D small animal cardiology transducer. These protocols were designed to measure right ventricular wall thickness, pulmonary artery diameter, and the outflow velocities of the right ventricular outflow tract (RVOT) and the pulmonary artery (PA), thereby establishing baseline parameters of the normally developing quail morphology. Quail embryos are an ideal model for cardiovascular research due to their short incubation period (16-17 days), experimental accessibility, and strong similarities to mammalian heart development. These developmental similarities include, but are not limited to, looping, chamber septation, and the development of a true four-chamber heart. High-resolution imaging modalities, including ultrasound and optical coherence tomography, enable noninvasive, real-time visualization of cardiac morphology and function throughout development. Echocardiography allows for quantitative and qualitative assessments of myocardial structure and cardiac hemodynamics. The similarity to the mammalian heart, combined with rapid embryogenesis, makes quail embryos a valuable model for investigating congenital heart defects, genetic modifications, and fundamental cardiac developmental processes. In this study, we describe reproducible incubation protocols and baseline echocardiographic parameters used to evaluate morphological and physiological changes in the developing embryonic quail heart on embryonic day 10.
Posted: 19 February 2026
The Neuro-Existential Architecture System (NEAS): A Heuristic Framework and Proposed RCT for Meaning-Mediated Trauma Recovery
Gerd Leidig
Posted: 19 February 2026
Translational Potential and Pharmacokinetic Challenges of Procyanidin C1 as a Next-Generation Senotherapeutic Agent
Qun Wang
,Jianhui Zhang
,Qinghua Lyu
,Ling Wang
Posted: 19 February 2026
Local Updates of Thevenin Equivalents in Linear Networks via Rank-One Perturbations (Sherman–Morrison)
Ricardo Adonis Caraccioli Abrego
Posted: 19 February 2026
A Robust Alloyed Interface of Cu and PET for High Performance Flexible Transparent Conductive Meshes
Xiao Lu
,Jia Li
,Biyou Bao
,Chengli Zhang
,Qiang Wang
,Guanglong Xu
,Xianfa Rao
,Hongliang Zhang
,Weijie Song
Posted: 19 February 2026
A Unified Theory for the Development of Tinnitus and Hyperacusis Based on Associative Plasticity in the Dorsal Cochlear Nucleus
Holger Schulze
,Achim Schilling
Posted: 18 February 2026
Risk-Based Approach to the Selection of Fire Exit Strategies for Non-Compliant Buildings
Mariusz Pecio
Posted: 18 February 2026
Variation Trend and Driving Forces of Water Quality in Lake Erhai, China
Xiaorong He
,Tianbao Xu
,Huihuang Luo
,Xueqian Wang
Posted: 18 February 2026
Quantum Gravity Theory of Space: Conservation Basis,Origin of Microscopic Gravity and Cosmological Unity
Hongliang Qian
,Yixuan Qian
Posted: 18 February 2026
BIM Data Dictionaries for Semantic Classification and
Attribution of Geospatial Features in GIS
Sebastian Schilling
,Christian Clemen
Posted: 18 February 2026
Hypoxia, Autophagy and Immune Escape in the Tumor Microenvironment: From Mechanisms to Therapeutic Targeting
Bassam Janji
,Salem Chouaib
Posted: 18 February 2026
Desirability Rating Based Counterfactual (DeRaC) Framework for Multi-Dimensional Classification Problems
Neelabh Kshetry
,Mehmed Kantardzic
Posted: 18 February 2026
Observational Technological Innovations and Future Development of the Lijiang Coronagraph
Xuefei Zhang
,Yu Liu
,Tengfei Song
,Mingyu Zhao
,Xiaobo Li
,Mingzhe Sun
,Feiyang Sha
,Xiande Liu
Posted: 18 February 2026
Burkholderia gladioli Causing Brown Spot on Leaf Sheath of Sweet Corn (Zea mays L.) in Sinaloa, Mexico: An Emerging Disease
Ruben Felix-Gastelum
,Jesus Ramon Escalante-Castro
,Karla Yeriana Leyva-Madrigal
,Ignacio Eduardo Maldonado-Mendoza
,Gabriel Herrera-Rodríguez
Brown spot on the leaf sheath is an emerging disease of sweet corn (Zea mays L.) in Sinaloa, Mexico, with an unknown etiology. This study aimed to identify the causal agent of the disease and assess its pathogenicity on commercial sweet corn hybrids. Bacterial strains were isolated from symptomatic leaf sheaths collected from commercial fields. Identification was performed through biochemical profiling (API 50CHB/E), pathogenicity tests on alternative hosts (potato, onion, celery), and molecular analysis (16S rRNA gene sequencing and phylogenetic reconstruction). Pathogenicity and virulence were confirmed by inoculating four sweet corn hybrids in a greenhouse. The strains were Gram-negative rods, identified as Burkholderia gladioli based on biochemical profiles and molecular data (99.8% 16S rRNA similarity; phylogenetic clustering within the B. gladioli clade). In greenhouse trials, the strains induced brown spot lesions on the leaf sheaths of all tested hybrids, replicating field symptoms fulfilling Koch’s postulates. This is the first report of B. gladioli as the causal agent of brown spot on the leaf sheath of sweet corn in Mexico. The pathogen’s broad host range highlights its potential as an emerging threat to horticultural crops in the region.
Brown spot on the leaf sheath is an emerging disease of sweet corn (Zea mays L.) in Sinaloa, Mexico, with an unknown etiology. This study aimed to identify the causal agent of the disease and assess its pathogenicity on commercial sweet corn hybrids. Bacterial strains were isolated from symptomatic leaf sheaths collected from commercial fields. Identification was performed through biochemical profiling (API 50CHB/E), pathogenicity tests on alternative hosts (potato, onion, celery), and molecular analysis (16S rRNA gene sequencing and phylogenetic reconstruction). Pathogenicity and virulence were confirmed by inoculating four sweet corn hybrids in a greenhouse. The strains were Gram-negative rods, identified as Burkholderia gladioli based on biochemical profiles and molecular data (99.8% 16S rRNA similarity; phylogenetic clustering within the B. gladioli clade). In greenhouse trials, the strains induced brown spot lesions on the leaf sheaths of all tested hybrids, replicating field symptoms fulfilling Koch’s postulates. This is the first report of B. gladioli as the causal agent of brown spot on the leaf sheath of sweet corn in Mexico. The pathogen’s broad host range highlights its potential as an emerging threat to horticultural crops in the region.
Posted: 18 February 2026
Modulation of Oncogenic NOTCH Signaling in Highly Aggressive Malignancies by Targeting the γ-Secretase Complex: A Systematic Review
Pablo Martínez-Gascueña
,María-Luisa Nueda
,Victoriano Baladrón
Posted: 18 February 2026
Detection of Biventricular Volume Increase in Overweight and Obese Using a Novel Index of the “Standard Human” - A Single-Center, Non-Contrast-Enhanced Cardiac CT Study
Maciej Sosnowski
,Wojciech Wojakowski
,Jan Harpula
,Tomasz Lepich
Posted: 18 February 2026
An Operational Framework for Affect-Adjacent Structure in Plant–Environment Interaction
Benjamin James Calvert
,Luc Caspar
,Olaf Witkowski
Posted: 18 February 2026
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