Results 101 to 110 of about 92,479 (298)

Impact of Biomimetic Pinna Shape Variation on Clutter Echoes: A Machine Learning Approach

open access: yesAdvanced Intelligent Systems, EarlyView.
Bats with dynamic ear structures navigate dense, echo‐rich environments, yet the echoes they receive are highly random. This study shows that machine learning can reliably detect structural signatures in these seemingly chaotic biosonar signals. The results open new directions for biologically inspired sensing, where time‐varying receiver shapes ...
Ibrahim Eshera   +2 more
wiley   +1 more source

Mid-trimester uterine artery Doppler ultrasound as a predictor of adverse obstetric outcome in high-risk pregnancy

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2011
Objective: The aim of this study was to assess uterine artery Doppler ultrasonography efficiency in prediction of adverse pregnancy outcome in high-risk pregnancies.
Nesa Asnafi, Karimolah Hajian
doaj   +1 more source

Deep Learning Methods for Assessing Time‐Variant Nonlinear Signatures in Clutter Echoes

open access: yesAdvanced Intelligent Systems, EarlyView.
Motion classification from biosonar echoes in clutter presents a fundamental challenge: extracting structured information from stochastic interference. Deep learning successfully discriminates object speed and direction from bat‐inspired signals, achieving 97% accuracy with frequency‐modulated calls but only 48% with constant‐frequency tones. This work
Ibrahim Eshera   +2 more
wiley   +1 more source

Splenogonadal Fusion Diagnosed by Doppler Ultrasonography

open access: yesThe Scientific World Journal, 2004
Splenogonadal fusion usually presents as a left scrotal mass but rarely is the diagnosis suspected preoperatively. Herein, we present the first report of a left splenogonadal fusion which was suspected preoperatively by doppler ultrasonography in a 2 ...
Jose Murillo B. Netto   +4 more
doaj   +1 more source

Uterine Arteriovenous Malformation As A Rare Cause Of Menorrhagia [PDF]

open access: yes, 2008
Uterine arterio venous malformation is uncommon cause of menorrhagia.
Chakraborty, Sudipta   +3 more
core   +1 more source

Marfan Syndrome Associated With Intellectual Disability and Behavioral Anomalies: Further Evidence for the Effect of Compound Heterozygous Variants in FBN1 on Phenotypic Severity

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Marfan syndrome (MFS) is a rare connective tissue disorder characterized by involvement of the cardiovascular, ocular, and musculoskeletal systems. Pathogenic variants in FBN1 cause most of the MFS cases; however, intellectual disability (ID) is rarely observed. A non‐consanguineous Pakistani family with four affected individuals was recruited.
Azmatullah Khan   +4 more
wiley   +1 more source

Facilitating Genetic Testing for Perinatal Demise: Development of a Multidisciplinary Workflow

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Genetic contributors to perinatal demise are common but frequently undiagnosed due to clinical and logistical barriers. We aimed to improve access to genetic for intrauterine fetal demise (IUFD), stillbirth, and early neonatal death by developing a multidisciplinary workflow.
Mackenzie Mosera   +15 more
wiley   +1 more source

Prenatal Evaluation of RNU4‐2 Variants in Fetuses With Central Nervous System Anomalies

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Fetal central nervous system (CNS) anomalies are among the most common congenital malformations, yet the overall prenatal diagnostic yield of current genetic testing remains below 40%. Variants in RNU4‐2, a non‐coding gene encoding the U4 small nuclear RNA (snRNA), have recently been linked to a novel highly recurrent dominant ...
Yiyao Chen   +13 more
wiley   +1 more source

Renal vessel–assisted anastomosis improves the abdominal heart transplant model in rats without bilateral lower limb ischemia

open access: yesAnimal Models and Experimental Medicine, EarlyView.
A modified heterotopic heart transplantation (HTx) in rats was reported to improve the surgical success rate, in which the donor's vessels, the brachiocephalic trunk (BT) and the pulmonary artery (PA), were sutured to the recipient's left renal artery (RA) and left renal vein (RV).
Meng Wang, Wuxia Wang, Xunfeng Zou
wiley   +1 more source

Experimental methods for wind tunnel studies of seed dispersal by wind

open access: yesApplications in Plant Sciences, EarlyView.
Abstract The complexity and variability of natural environments make quantitative studies of seed wind dispersal challenging. Wind tunnel experiments offer a controlled alternative to investigate the mechanisms of seed wind dispersal. This review focuses on wind tunnels and the associated technologies used for studying seed wind dispersal, including ...
Liang Tian   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy