Results 21 to 30 of about 1,506,709 (263)

Isolation and reconstitution of the high‐affinity choline carrier [PDF]

FEBS Letters, 1989
Monoclonal antibodies, which block the high‐affinity uptake of choline in synaptosomal ghosts, have been used to purify a membrane polypeptide (80 kDa) from insect synaptosomal membranes. This isolated protein was found to catalyse the sodium‐dependent, hemicholinium‐sensitive accumulation of choline after reconstitution into liposomes, thus ...
Knipper, M., Boekhoff, I., Breer, H.
openaire   +2 more sources

A Novel Monopole Ultra-Wide-Band Multiple-Input Multiple-Output Antenna with Triple-Notched Characteristics for Enhanced Wireless Communication and Portable Systems

Sensors, 2023
This study introduces a monopole 4 × 4 Ultra-Wide-Band (UWB) Multiple-Input Multiple-Output (MIMO) antenna system with a novel structure and outstanding performance.
Shahid Basir, Ubaid Ur Rahman Qureshi, Fazal Subhan, Muhammad Asghar Khan, Syed Agha Hassnain Mohsan, Yazeed Yasin Ghadi, Khmaies Ouahada, Habib Hamam, Fazal Noor   +8 more
doaj   +1 more source

A Wideband Eight-Element Antenna with High Isolation for 5G New-Radio Applications

Applied Sciences, 2022
A wideband multiple-input multiple-output (MIMO) antenna with high isolation for fifth-generation (5G) new-radio (NR) smartphone employment operating at a range from 3.3–5 GHz is presented in the paper.
Jing Cai, Juhui Zhang, Shuqi Xi, Jianlin Huang, Gui Liu   +4 more
doaj   +1 more source

DESIGN OF MIMO ANTENNA FOR WIRELESS COMMUNICATION APPLICATIONS

Journal of Engineering and Sustainable Development, 2022
The development of a new compact Ultra Wideband (UWB) antenna. The main advantages of the proposed array configuration are that it requires no isolation/decoupling circuit between the elements of the MIMO array.
Rasha Basil Nassir, Ali Khalid Jassim   +1 more
doaj  

Compact Wideband Dual-Polarized Antenna With High Isolation Using Modified Direct Feeding Structure For Indoor Beamforming Array Applications

IEEE Access, 2018
A modified direct feeding structure is proposed in this paper to realize a compact ( $45 \times 45$ mm2) wideband dual-polarized antenna with high isolation (33 dB) and low cross-polarization (30 dB).
Yaohui Zhang, Daotong Li, Yonghong Zhang, Yong Fan   +3 more
doaj   +1 more source

A Novel Calculation Method to Design Parasitic Decoupling Technique for Two Antennas

IEEE Access, 2020
In this paper, a systematic and calculation-based parasitic decoupling technique (PDT) is proposed to mitigate the mutual coupling between two closely coupled antennas.
Min Li, Di Wu, Bing Xiao, Kwan Lawrence Yeung, Lijun Jiang   +4 more
doaj   +1 more source

Clinical profile and management of a Spanish single-center retrospective cohort of patients with post-chikungunya associated complications

Travel Medicine and Infectious Disease
Background: This study aims to describe post-chikungunya complications chronically developed cases in returning travelers from some epidemic/endemic regions, and the variables that are associated with the progression of acute or subacute cases to the ...
Fernando de la Calle-Prieto, Juan J. Barriga, Marta Arsuaga, Rosa de Miguel, Marta Díaz-Menéndez   +4 more
doaj   +1 more source

Coupling Reduction of Extremely Closely Spaced Circularly Polarized MIMO Patch Antenna by Phase Shift Method

IEEE Access, 2023
This paper shows a method to reduce the mutual coupling between extremely closely spaced circularly polarized (CP) multiple-input-multiple-output (MIMO) antenna.
Huy-Hung Tran, Tung The-Lam Nguyen, Hoai-Nam Ta, Duy-Phong Pham   +3 more
doaj   +1 more source

Impact of the SARS-CoV-2 Pandemic on the Prevalence and Incidence of Enteric Protozoa in a Spanish Tertiary-Care Hospital and a Referral Center for Tropical Diseases, 2019–2023

Medical Sciences
Objetive: The aim of this study was to describe the impact of non-pharmaceutical interventions (NPIs) against SARS-CoV-2 in patients with symptoms of enteric protozoa (EP), including Blastocystis spp., Dientamoeba fragilis, Giardia lamblia ...
Alfredo Maldonado-Barrueco, Fernando de la Calle-Prieto, Marta Díaz-Menéndez, Marta Arsuaga, Julio García-Rodríguez, Guillermo Ruiz-Carrascoso   +5 more
doaj   +1 more source

A Metasurface-Based MIMO Antenna With Compact, Wideband, and High Isolation Characteristics for Sub-6 GHz 5G Applications

IEEE Access, 2023
A compact metasurface (MS) based MIMO antenna with wideband operation and high isolation characteristics is proposed for sub-6 GHz applications. A single element is constructed by a slot coupled with $2\times $ 2 unit cells MS.
Huy-Hung Tran, Tung The-Lam Nguyen, Hoai-Nam Ta, Duy-Phong Pham   +3 more
doaj   +1 more source