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In the last few years, new ways of structuring light have emerged, with the potential to be used in a wide variety of applications, including materials processing, micro-particle manipulation and charged particle acceleration. One of these techniques is the structured laser beam (SLB). The important advantages of this beam are the simple generation principle using spherical aberration and the potentially infinite propagation range.
View Article and Find Full Text PDFPhenomenological Description of the Experiences of Teenagers With Critically Ill Parents.
J Nurs Res
February 2025
Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, CA, USA.
Background: Critical illness not only threatens the life of the patient but also may profoundly impact the lives of their loved ones. For teenagers with a critically ill parent, these impacts may have significant, developmentally impactful effects. A descriptive understanding of these effects may advance scholarly understanding of the challenges these teenagers face.
View Article and Find Full Text PDFCharacterization of retardance of nondepolarizing and depolarizing media.
J Opt Soc Am A Opt Image Sci Vis
August 2024
A criterion for the characterization of the retardance effects produced by depolarizing and nondepolarizing linear media on interacting light is established based on Mueller matrices algebra. A consistent general description of retardance properties is performed by means of a serial decomposition of the Mueller matrix into three components, namely an element that encompasses the enpolarizing and depolarizing properties sandwiched by two elliptical retarders containing complete and decoupled information on retardance. The inherent ambiguity derived from the coincident formal structure of rotation matrices and circular retarders is removed though the introduction of the entrance and exit intrinsic reference frames, leading to the concepts of the intrinsic entrance and exit linear retarders, which are defined from the Mueller matrix itself and that are independent of the laboratory reference frames used to represent the incident and emerging polarized light beams, respectively.
View Article and Find Full Text PDFSpecialty education and scope of oral and maxillofacial surgery in the United States.
J Dent Sci
January 2025
Department of Oral and Maxillofacial Surgery, University of Pennsylvania, School of Dental Medicine, Philadelphia, PA, USA.
In the United States, Oral and Maxillofacial Surgery (OMS) is a specialty of dentistry that focuses on the management of injuries, diseases, and defects of the head, neck, face, and jaws. The present manuscript is an article on education and training of OMS residents in the United States. It a lso briefly describes the scope of practice of the specialty.
View Article and Find Full Text PDFResearch Best Practices for Eye Stroke Vision Rehabilitation: A Qualitative Study.
Curr Eye Res
January 2025
Department of Ophthalmology, Duke University, Durham, NC, USA.
Purpose: Central retinal artery occlusion, also known as an eye stroke, results in visual impairment and functional challenges. Our study objectives were to identify meaningful measures and factors that indicate or enable successful recovery after eye stroke and to determine optimal processes to support research, including exploring barriers and facilitators to successful research participation.
Methods: We used qualitative methods including the 5Ts Framework (target population identification, team composition, time considerations, tips to accommodate older adults, tools for inclusive enrollment of older adults) to provide a guide to the development of the semi-structured interviews and to help facilitate the research process such as the set-up of interviews.
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