The temporal behavior of femtosecond laser pulses propagating and scattering in random media was studied using an optical fiber probe and a streak camera. Information on the temporal profile of laser pulse scattering at 90 degrees in semiopaque media was analyzed. Apparent ballistic transport was observed for both single and multiple scattering regimes. A phantom (hidden foreign object) was identified in a semiopaque environment using time resolved techniques with a total optical density of ~3.
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http://dx.doi.org/10.1364/AO.28.002304 | DOI Listing |
BMJ Open
January 2025
Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada.
Introduction: Non-adherence to tuberculosis (TB) treatment poses a significant challenge to effective TB management globally and is a major contributor to the emergence of multidrug-resistant TB. Although adherence to TB treatment has been widely studied, a comprehensive evaluation of the comparative levels of adherence in high- versus low-TB burden settings remains lacking. The objective of this systematic review and meta-analysis is to assess the levels of adherence to TB treatment in high-TB burden countries compared to low-burden countries.
View Article and Find Full Text PDFSci Rep
January 2025
artment of Biology and Biotechnology, Worcester Polytechnic Institute, Worcester, MA, 01609, USA.
Medicinal hemp (Cannabis sativa L.) is gaining popularity due to its natural products with potential therapeutic properties, and its cultivation has recently been initiated in developing countries such as Turkey, Iran, India, and Pakistan. The crop is primarily grown using feminized seeds or popular varieties to achieve higher cannabidiol (CBD) yields, with seeds costing approximately $5-10 each.
View Article and Find Full Text PDFBody Image
January 2025
Centre for Appearance Research, School of Social Sciences, University of the West of England, Coldharbour Lane, Bristol BS16 1QY, UK.
This study presents a fully powered RCT testing the effectiveness and acceptability of two positive body image online media-based micro-interventions designed for young children. A total of 439 children aged 4-6 years were randomised into one of four conditions: i) episode intervention, ii) episode control, iii) music video intervention, or iv) music video control. Children and their accompanying parent attended two data collection sessions, approximately a week apart.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Health Informatics, School of Public Health, College of Medicine and Health Science, Woldia University, Woldia, Ethiopia.
Background: Stunting is a vital indicator of chronic undernutrition that reveals a failure to reach linear growth. Investigating growth and nutrition status during adolescence, in addition to infancy and childhood is very crucial. However, the available studies in Ethiopia have been usually focused in early childhood and they used the traditional stastical methods.
View Article and Find Full Text PDFAppl Psychol Health Well Being
February 2025
Department of Education and Psychology, Division of Health Psychology, Freie Universität Berlin, Berlin, Germany.
Background: Interventions targeting social media use show mixed results in improving well-being outcomes, particularly for persons with problematic forms of smartphone use. This study assesses the effectiveness of an intervention app in enhancing well-being outcomes and the moderating role of persons' perceptions about problematic smartphone use (PSU).
Methods: In a randomized controlled trial, N = 70 participants, allocated to the intervention (n = 35) or control condition (n = 35), completed weekly online surveys at baseline, post-intervention, and follow-up.
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