Results 31 to 40 of about 462,203 (338)

The Association between Vitamin D Receptor Expression and Prolonged Overall Survival in Breast Cancer. [PDF]

, 2012
Summary In this study, we analyzed vitamin D receptor (VDR) expression and survival in a breast cancer patient cohort of 82 breast cancer patients. Immunohistochemical analysis was possible in 91.5% of the patients (75/82). Staining was evaluated using
Berger U, Berger U, Boecker W, Conde I, Eisman JA, Frampton RJ, Freake HC, Gombart AF, Jeschke U, Mason BH, Mylonas I, Remmele W, Ulmann A, Zinser GM   +13 more
core   +2 more sources

Resource Allocation for IRS-Assisted Full-Duplex Cognitive Radio Systems [PDF]

IEEE Transactions on Communications, 2020
In this article, we investigate the resource allocation design for intelligent reflecting surface (IRS)-assisted full-duplex (FD) cognitive radio systems. In particular, a secondary network employs an FD base station (BS) for serving multiple half-duplex
Dongfang Xu, Xianghao Yu, Yan Sun, Derrick Wing Kwan Ng, R. Schober   +4 more
semanticscholar   +1 more source

Joint Transmit and Reflective Beamforming for IRS-Assisted Integrated Sensing and Communication [PDF]

IEEE Wireless Communications and Networking Conference, 2021
This paper studies an intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) system, in which one IRS with a uniform linear array (ULA) is deployed to not only assist the wireless communication from a multi-antenna base
Xianxin Song, Ding Zhao, H. Hua, T. Han, Xun Yang, Jie Xu   +5 more
semanticscholar   +1 more source

IRS-Aided Wireless Powered MEC Systems: TDMA or NOMA for Computation Offloading? [PDF]

IEEE Transactions on Wireless Communications, 2021
Anintelligent reflecting surface (IRS)-aided wireless-powered mobile edge computing (WP-MEC) system is conceived, where each device’s computational task can be divided into two parts for local computing and offloading to mobile edge computing (MEC ...
Guangji Chen, Qingqing Wu, Wen Chen, Derrick Wing Kwan Ng, L. Hanzo   +4 more
semanticscholar   +1 more source

Mathematical Evaluation of Community Level Impact of Combining Bed Nets and Indoor Residual Spraying upon Malaria Transmission in Areas where the main Vectors are Anopheles Arabiensis Mosquitoes. [PDF]

, 2013
Indoor residual insecticide spraying (IRS) and long-lasting insecticide treated nets (LLINs) are commonly used together even though evidence that such combinations confer greater protection against malaria than either method alone is inconsistent.
AK Githeko, AN Clements, C Ngufor, EJ Scholte, FM Mutuku, FO Okumu, FO Okumu, FO Okumu, FO Okumu, Fredros O Okumu, G MacDonald, Gerry F Killeen, GF Killeen, GF Killeen, GF Killeen, GF Killeen, GF Killeen, H Pates, HM Ferguson, I Kleinschmidt, IN Lyimo, J Bradley, J Kitau, JB Silver, JD Lines, JO Yukich, JP Grieco, JR Rosenbaum, JT Griffin, KRN Ng'habi, L Yakob, MJ Hamel, MN Bayoh, N Chitnis, NJ Govella, OJT Briët, R Elliott, R N'Guessan, Samson S Kiware, Sarah J Moore, SE Clarke, SS Kiware, SS Kiware, The malERA Consultative Group on Vector Control, TL Russell, TL Russell, TP Eisele, V Corbel, WHO, WHO, WHO, WHO, WHO, WHO, WHO/RBM, UNICEF, PSI, MSH, YA Derua   +55 more
core   +6 more sources

Cooperative Double-IRS Aided Communication: Beamforming Design and Power Scaling [PDF]

IEEE Wireless Communications Letters, 2020
Intelligent reflecting surface (IRS) is a promising technology to support high performance wireless communication. By adaptively configuring the reflection amplitude and/or phase of each passive reflecting element on it, the IRS can reshape the ...
Yitao Han, Shuowen Zhang, Lingjie Duan, Rui Zhang   +3 more
semanticscholar   +1 more source

Design and Application of Intelligent Reflecting Surface (IRS) for Beyond 5G Wireless Networks: A Review

Italian National Conference on Sensors, 2022
The existing sub-6 GHz band is insufficient to support the bandwidth requirement of emerging data-rate-hungry applications and Internet of Things devices, requiring ultrareliable low latency communication (URLLC), thus making the migration to millimeter ...
Fred Chimzi Okogbaa, Q. Ahmed, F. A. Khan, Waqas bin Abbas, Fuhu Che, S. A. R. Zaidi, T. Alade   +6 more
semanticscholar   +1 more source

Indoor residual spraying of insecticide and malaria morbidity in a high transmission intensity area of Uganda. [PDF]

, 2012
BackgroundRecently the use of indoor residual spraying of insecticide (IRS) has greatly increased in Africa; however, limited data exist on the quantitative impacts of IRS on health outcomes in highly malaria endemic areas.Methodology/principal ...
Baxi, Sanjiv M, Dissanayake, Gunawardena, Dorsey, Grant, Filler, Scott, Gasasira, Anne, Kakeeto, Stella, Kamya, Moses R, Kigozi, Ruth, Nasr, Sussann, Rubahika, Denis, Sserwanga, Asadu   +10 more
core   +2 more sources

Joint Beamforming Design and Power Splitting Optimization in IRS-Assisted SWIPT NOMA Networks [PDF]

IEEE Transactions on Wireless Communications, 2020
This paper proposes a novel network framework of intelligent reflecting surface (IRS)-assisted simultaneous wireless information and power transfer (SWIPT) non-orthogonal multiple access (NOMA) networks, where IRS is used to enhance the NOMA performance ...
Zhendong Li, Wen Chen, Qingqing Wu, Kunlun Wang, Jun Li   +4 more
semanticscholar   +1 more source

Two Bipolar Outflows and Magnetic Fields in a Multiple Protostar System, L1448 IRS 3 [PDF]

, 2006
We performed spectral line observations of CO J=2-1, 13CO J=1-0, and C18O J=1-0 and polarimetric observations in the 1.3 mm continuum and CO J=2-1 toward a multiple protostar system, L1448 IRS 3, in the Perseus molecular complex at a distance of ~250 pc,
Bachiller R., Bachiller R., Bachiller R., Bontemps S., Eisloffel J., Jason M. Kirk, Leslie W. Looney, Richard M. Crutcher, Woojin Kwon   +8 more
core   +3 more sources