Abstract Childhood obesity is nowadays considered one of the major health problems that many societies suffer from today. The obesity epidemic leads to several life threatening conditions such as diabetes, heart disease, high blood pressure, and mental health problems like depression, anxiety, and loneliness just to mention a few. Several approaches, including physical exercises, strict diet, …
Abstract Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR), and ultraviolet (UV) bands. In this survey, we focus on outdoor terrestrial OWC links which operate in near IR band. These are widely referred to as free space optical (FSO) communication in the literature. FSO systems are used f…
Abstract This paper presents a new theory, called the consumption factor theory, to analyze and compare energy efficient design choices for wireless communication networks. The approach presented here provides new methods for analyzing and comparing the power efficiency of communication systems, thus enabling a quantitative analysis and design approach for “green engineering” of communicat…
Objectives. We examined the feasibility of using mobile phone text messaging with homeless veterans to increase their engagement in care and reduce appointment no-shows. Methods. We sent 2 text message reminders to participants (n = 20) before each of their outpatient appointments at an urban Veterans Affairs medical center. Evaluation included pre- and postsurvey questionnaires, open-ended que…