Frequency-resolved optical gating is used to characterize the propagation of intense femtosecond pulses in a nonlinear, dispersive medium. The combined effects of diffraction, normal dispersion, and cubic nonlinearity lead to pulse splitting. The role of the phase of the input pulse is studied. The results are compared with the predictions of a three-dimensional nonlinear Schrödinger equation.
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http://dx.doi.org/10.1364/ol.23.000379 | DOI Listing |
Antibiotics (Basel)
January 2025
Department of Prosthodontics, Study of Dental Medicine, University of Split School of Medicine, 21000 Split, Croatia.
: This study aimed to explore antibiotic prescribing practices for dental implant placement in Croatia. : We conducted a cross-sectional questionnaire-based study including dentists in Croatia who perform dental implant therapy. The questionnaire assessed the dentists' age, working experience, education level, and whether they use antibiotics for dental implant placement, as well as the choice of antibiotics, timing, and reasons for antibiotics use.
View Article and Find Full Text PDFChildren (Basel)
January 2025
Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh 11255, Saudi Arabia.
Background: Managing pain during dental procedures is crucial, particularly for children, as pain can induce anxiety. Local anesthesia is the most anxiety-inducing procedure in pediatric patients. Consequently, this study aimed to assess and compare the pain-related behaviors and perceptions associated with two anesthesia techniques for children: traditional local anesthesia and intraosseous local anesthesia administered via the QuickSleeper 5 system.
View Article and Find Full Text PDFRev Sci Instrum
January 2025
Optics Research Group, Imaging Physics Department, Delft University of Technology, Van der Waalsweg 8, 2628 CH Delft, The Netherlands.
We demonstrate a broadband implementation of coherent Fourier scatterometry (CFS) using a supercontinuum source. Spectral information can be resolved by splitting the incident field into two pulses with a variable delay and interfering them at the detector after interaction with the sample, bearing similarities with Fourier-transform spectroscopy. By varying the time delay between the pulses, a collection of diffraction patterns is captured in the Fourier plane, thereby obtaining an interferogram for every camera pixel.
View Article and Find Full Text PDFJMIR Form Res
January 2025
1, Department of Health Administration, College of Software and Digital Healthcare Convergence, Yonsei University, Changjogwan, Yonseidae-gil 1, Wonju, 26493, Republic of Korea, +82 (0) 33-760-2257.
Background: Diabetes is prevalent in older adults, and machine learning algorithms could help predict diabetes in this population.
Objective: This study determined diabetes risk factors among older adults aged ≥60 years using machine learning algorithms and selected an optimized prediction model.
Methods: This cross-sectional study was conducted on 3084 older adults aged ≥60 years in Seoul from January to November 2023.
ESC Heart Fail
January 2025
Division of Cardiology, Department of Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
Aims: Right ventricular (RV) failure (RVF) after left ventricular assist device (LVAD) implant is an important cause of morbidity and mortality. Modern, data-driven approaches for defining and predicting RVF have been under-utilized.
Methods: Two hundred thirty-two patients were identified with a mean age of 55 years; 40 (17%) were women, 132 were (59%) Caucasian and 74 (32%) were Black.
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