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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8016020 | PMC |
| http://dx.doi.org/10.5603/CJ.a2020.0025 | DOI Listing |
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Middle Ear Mechanics in the Barn Owl.
J Morphol
January 2025
Department of Zoology, Denver Museum of Nature & Science, Denver, Colorado, USA.
The barn owl is a common research subject in auditory science due to its exceptional capacity for high frequency hearing and superb sound source localization capabilities. Despite longstanding interest in the auditory performance of barn owls, the function of its middle ear has attracted remarkably little attention. Here, we report the middle ear transfer function measured by laser Doppler vibrometry and direct measurements of inner ear pressures.
View Article and Find Full Text PDFMidinfrared Cavity-Enhanced Two-Photon Absorption Spectroscopy for Selective Detection of Trace Gases.
Anal Chem
January 2025
Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China.
Detection of trace gases, such as radioactive carbon dioxide, clumped isotopes, and reactive radicals, is of great interest and poses significant challenges in various fields. Achieving both high selectivity and high sensitivity is essential in this context. We present a highly selective molecular spectroscopy method based on comb-locked, mid-infrared, cavity-enhanced, two-photon absorption.
View Article and Find Full Text PDFExperimental research on remote non-contact laser vibration measurement for tunnel lining cavities.
Sci Rep
January 2025
State Key Laboratory of Mountain Bridge and Tunnel Engineering, College of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, China.
The lining cavities in tunnels have strong concealment and pose significant risks, seriously affecting tunnel operational safety. Therefore, it is necessary to develop efficient and high-precision detection techniques for tunnel lining cavities. In this study, concrete slabs with different parameter cavities were selected as the research object, and experiments on remote detection using Laser Doppler Vibrometry were conducted.
View Article and Find Full Text PDFResolution of selective fetal growth restriction after laser surgery for twin-to-twin transfusion syndrome can be predicted by predisease growth discordance.
Ultrasound Obstet Gynecol
January 2025
Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Objective: To determine if the resolution of fetal growth discordance after laser surgery in pregnancies with twin-to-twin transfusion syndrome (TTTS) and coexisting selective fetal growth restriction (sFGR) can be predicted by estimated fetal weight (EFW) discordance recorded prior to the development of TTTS (pre-TTTS).
Methods: This was a single-center, retrospective analysis of prospectively collected data on monochorionic twins with concurrent TTTS and sFGR that underwent laser surgery and had available growth ultrasound records from a pre-TTTS ultrasound evaluation. Maternal demographics, pregnancy characteristics and birth outcomes were compared between three outcome groups: double twin survival with resolved sFGR determined by birth weight discordance (BWD) < 20%; double twin survival with ongoing sFGR determined by BWD ≥ 20%; and single or double fetal demise after laser surgery.
Our Experience about Shared Venous Hemodynamics Map (SVHM): A Least Common Denominator for Computerized Comparison of the Results of Chronic Venous Disease (CVD) Treatment.
Ann Ital Chir
December 2024
Multidisciplinary Department of Medical-Surgical and Dental Specialties, Plastic Surgery Unit, Università degli Studi della Campania "Luigi Vanvitelli", 80138 Naples, Italy.
Article Synopsis
- Varicose veins should be understood as part of the larger issue of chronic venous insufficiency (CVI), prompting the MEVeC project to enhance assessment methods and standardize treatment evaluations across practitioners.
- The study evaluated surgical vs. laser treatment in patients with specific varicose vein conditions, using ultrasound Doppler to examine outcomes after interventions.
- Results showed lower reflux rates in the surgical group compared to the laser group, highlighting the need for ongoing standardization and understanding of treatment efficacy in managing CVI.
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