Results 81 to 90 of about 2,451,911 (303)

Performance Improvement of Iterative Multiuser Detection for Large Sparsely-Spread CDMA Systems by Spatial Coupling

open access: yes, 2014
Kudekar et al. proved that the belief-propagation (BP) performance for low-density parity check (LDPC) codes can be boosted up to the maximum-a-posteriori (MAP) performance by spatial coupling.
Kawabata, Tsutomu   +2 more
core   +1 more source

Enhancement of Characteristics of Field Asymmetric Ion Mobility Spectrometer with Laser Ionization for Detection of Explosives in Vapor Phase

open access: yesChemosensors, 2020
Ion mobility spectrometry instrumentation today is widespread in the area of transport security and counterterrorism. This method of detection of explosive substances is highly appreciated for the existence of portable detectors capable of detecting ...
Vitalii A. Kostarev   +3 more
doaj   +1 more source

A high-sensitivity OH 5-cm line survey in late-type stars

open access: yes, 2002
We have undertaken a comprehensive search for 5-cm excited OH maser emission from evolved stars representative of various stages of late stellar evolution. Observed sources were selected from known 18-cm OH sources. This survey was conducted with the 100-
Baudry, A.   +3 more
core   +1 more source

‘They Need to Hear You Say It’: Healthcare Professionals’ Perspectives on Barriers and Enablers to End‐of‐Life Discussions With Adolescents and Young Adults With Cancer

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT End‐of‐life conversations with adolescents and young adults (AYAs) with cancer rarely occur without the guidance of healthcare professionals. As a part of the ‘Difficult Discussions’ study, focused on palliative care and advance care planning discussions with AYAs with cancer, we investigated the factors that healthcare professionals identify ...
Justine Lee   +9 more
wiley   +1 more source

Analytical Performance Evaluation of Three Commercial Rapid Nucleic Acid Assays for SARS-CoV-2

open access: yesInfection and Drug Resistance, 2021
Jie Yi, Xiao Han, Ziyi Wang, Yu Chen, Yingchun Xu, Jie Wu Department of Laboratory Medicine, and Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Peking Union Medical College Hospital, Chinese Academy of
Yi J, Han X, Wang Z, Chen Y, Xu Y, Wu J
doaj  

Scattering theory and the Aharonov--Bohm effect in quasiclassical physics

open access: yes, 2011
Scattering of a nonrelativistic quantum-mechanical particle by an impenetrable magnetic vortex is considered. The nonvanishing transverse size of the vortex is taken into account, and the limit of short, as compared to this size, wavelengths of the ...
Sitenko, Yurii A., Vlasii, Nadiia D.
core   +1 more source

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song   +15 more
wiley   +1 more source

Review of Detection Limits for Various Techniques for Bacterial Detection in Food Samples

open access: yesNanomaterials
Foodborne illnesses can be infectious and dangerous, and most of them are caused by bacteria. Some common food-related bacteria species exist widely in nature and pose a serious threat to both humans and animals; they can cause poisoning, diseases ...
Xinyi Zhao   +5 more
doaj   +1 more source

Semi-Automated Data Analysis for Ion-Selective Electrodes and Arrays Using the R Package ISEtools

open access: yesSensors, 2019
A new software package, ISEtools, is introduced for use within the popular open-source programming language R that allows Bayesian statistical data analysis techniques to be implemented in a straightforward manner.
Peter W. Dillingham   +3 more
doaj   +1 more source

Shot noise limited detection of OH using the technique of laser induced fluorescence [PDF]

open access: yes
Nearly shot-noise limited detection of OH using the technique of laser-induced fluorescence is reported. A LIDAR configuration is used to excite fluorescence in a large volume and a narrow-bandwidth interference filter provides spectral discrimination ...
Bakalyar, D. M.   +6 more
core   +1 more source

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