Results 31 to 40 of about 575,267 (307)
PLoS ONE, 2022 Telehealth services may improve access to care, but there are concerns around whether availability of telehealth may increase care utilization. We assessed whether usage of telehealth was associated with differential primary care utilization at a large ...
Kevin Chen +4 more
doaj +1 more source
Spectrum-Aggregating Cognitive Multi-Antenna User with Multiple Primary Users
2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall), 2014 We investigate a cognitive radio scenario involving a single cognitive transmitter equipped with K antennas sharing the spectrum with M primary users (PUs) transmitting over orthogonal bands. Each terminal has a queue to store its incoming traffic. We propose a novel protocol where the cognitive user transmits its packet over a channel formed by the ...
Ahmed El Shafie 0001, Tamer Khattab
openaire +2 more sources
A New Method For Secondary Containment Of Emissions From Primary Seals [PDF]
, 1998 Lecturepg. 69Recent industrial advances in secondary containment methods have increased the role of secondary containment systems in environmental corporate strategies aimed at lowering the risks associated with leakage from primary sealing systems. As a
Mathis, Allan +2 more
core +1 more source
Opinión de los facultativos y usuarios sobre avances de la e-salud en atención primaria
Atención Primaria, 2020 Resumen: Objetivo: Explorar las opiniones de los usuarios y de los facultativos sobre el avance de la e-salud en atención primaria. Diseño: Grupos focales realizados entre el 1 de mayo y el 25 de septiembre de 2018.
Andrés Cernadas Ramos +3 more
doaj +1 more source
Service users' views of self-help strategies and research in the UK [PDF]
, 2007 Background: Self-help approaches for mental health problems are a research and service development priority within the UK. Aim: To engage service users in the research process through a consultation exercise, seek their views on the strategies they ...
Jones, Anthony +3 more
core +1 more source
On the coexistence of a primary user with an energy harvesting secondary user: a case of cognitive cooperation [PDF]
Wireless Communications and Mobile Computing, 2014 AbstractIn this paper, we consider a cognitive scenario where an energy harvesting secondary user shares the spectrum with a primary user. The secondary source helps the primary source in delivering its undelivered packets during periods of silence of the primary source. The primary source has a queue for storing its data packets, whereas the secondary
Ahmed El Shafie 0001 +3 more
openaire +5 more sources
Examination of the risk of reinfection with hepatitis C among injecting drug users who have been tested in Glasgow [PDF]
, 2012 Unsafe injecting practices put injecting drug users (IDUs) at repeat exposure to infection with the hepatitis C virus (HCV). It has not yet been determined if spontaneously clearing one's primary infection influences the risk of reinfection; our aim was ...
Hutchinson, Sharon +6 more
core +1 more source
Matching Theory Based Physical Layer Secure Transmission Strategy for Cognitive Radio Networks
IEEE Access, 2021 In this paper, a cooperative secure transmission strategy is proposed for cognitive radio networks (CRNs) comprising of multiple primary users (PUs), multiple secondary users (SUs) and malicious eavesdroppers.
Zhou Tian +4 more
doaj +1 more source
On spectrum sharing between energy harvesting cognitive radio users and primary users [PDF]
2015 International Conference on Computing, Networking and Communications (ICNC), 2015 This paper investigates the maximum secondary throughput for a rechargeable secondary user (SU) sharing the spectrum with a primary user (PU) plugged to a reliable power supply. The SU maintains a finite energy queue and harvests energy from natural resources and primary radio frequency (RF) transmissions. We propose a power allocation policy at the PU
Ahmed El Shafie 0001 +3 more
openaire +3 more sources
The extent of injection site infection in injecting drug users: findings from a national surveillance study. [PDF]
, 2010 Injection site infections in injecting drug users (IDUs) are associated with serious morbidity and healthcare costs. Factors associated with symptoms of these were examined through annual (2006-2008) unlinked-anonymous survey of IDUs in England, Wales ...
Marongiu, A +3 more
core +1 more source