Results 11 to 20 of about 575,267 (307)

Cooperative communication between cognitive and primary users [PDF]

open access: yesIET Communications, 2013
The active cooperation between a primary user (PU) and a cognitive user (CU) has the potential of leading to a transmission power reduction and transmission rate increase for both the PU and the CU. Alternatively, the required bandwidth may be reduced and the freed bandwidth may be leased to a group of CUs for their secondary communications.
Liang, Wei, Ng, Soon Xin, Hanzo, L.
openaire   +3 more sources

Knowledge about COPD among users of primary health care services [PDF]

open access: yesInternational Journal of COPD, 2014
Maria Conceição de Castro Antonelli Monteiro de Queiroz,1 Maria Auxiliadora Carmo Moreira,1 Jose R Jardim,2 Maria Alves Barbosa,3 Ruth Minamisava,3 Heicilainy Del Carlos Gondim,4 Flávia Castro Velasco,4 Maria Vitoria Carmo Penhavel5 ...
Queiroz MC   +7 more
doaj   +1 more source

Maximum throughput of a secondary user cooperating with an energy-aware primary user [PDF]

open access: yes2014 12th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), 2014
Accepted WiOpt ...
Ahmed El Shafie 0001   +2 more
openaire   +3 more sources

Women’s experiences on the use of Implanon as a contraceptive method in a selected primary healthcare facility in KwaZulu-Natal

open access: yesCurationis, 2021
Background: The South African department of health recently introduced subdermal Implanon contraceptive implant with the aim to reduce teenage pregnancy and maternal mortality. First used in all public healthcare facilities across the country since early
Lucky N. Mgobhozi   +2 more
doaj   +1 more source

Primary non‐adherence and the new‐user design [PDF]

open access: yesPharmacoepidemiology and Drug Safety, 2018
The new‐user design has been widely used in pharmacoepidemiology. By following patients from the initiation of a treatment, the new‐user design has several advantages over designs that begin follow‐up on prevalent users. The new‐user design allows study of the full time course of outcome risk after treatment initiation, with representation of early and
Xiaojuan Li   +3 more
openaire   +2 more sources

Telemedicine consultations with physicians in Swedish primary care: a mixed methods study of users’ experiences and care patterns [PDF]

open access: yes, 2021
Objective The study aimed to explore users’ experiences and care patterns concerning telemedicine consultations with physicians in Swedish primary care from 2017 to 2019.
Kristina Areskoug Josefsson   +5 more
core   +1 more source

Opportunistic Channel Allocation Model in Collocated Primary Cognitive Network [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
The growing demand of radio spectrum to facilitate the primary/secondary users in a cellular network is a challenging task. Many channel allocation models, applying cognition, have been proposed to increase the radio spectrum utilization.
Mangala Prasad Mishra   +2 more
doaj   +1 more source

User violence prevention and intervention measures to minimize and prevent aggression towards health care workers: A systematic review

open access: yesHeliyon, 2023
Workplace violence in the health care setting is a social problem of great interest both at the health care level and in research in recent decades. The most common type of violence is the one coming from the user towards the professional.
Paloma López-Ros   +3 more
doaj   +1 more source

Detection of spectrum hole from n-number of primary users using machine learning algorithms

open access: yesThe Journal of Engineering, 2019
A method for detecting spectrum holes based on the n-number of primary users (PU's) in a cognitive radio environment, using a cooperative spectrum sensing model is proposed in this study. The fusion centre, senses the n-number of PUs.
Udayamoorthy Venkateshkumar   +1 more
doaj   +1 more source

A Formula for Successful Transmission Probability in Opportunistic Networks Under Memory-Time Correlated Channel Availability

open access: yesIEEE Access, 2023
Dynamic Spectrum Access (DSA) technology in wireless Cognitive Radio Networks (CRNs) provides opportunistic access for unlicensed users, also known as Secondary Users (SUs), which can offer huge bandwidth to enable future wireless communication.
Sharhabeel H. Alnabelsi   +1 more
doaj   +1 more source

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