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717 results for “SPECT”

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Research ArticleOpen accessEvery word in the titleComparative Forensic Profiling of Primer-Derived Inorganic Gunshot Residues Using SEM-EDX SpectroscopyAhmed M. Bendary Salem, Aldo Barbaro, Bolaji OladipoGunshot Residue (GSR) analysis presents a significant challenge in forensic science due to the need to detect and identify minute traces of powders and initiating compositions formed during the chemical decomposition and deflagration processes within cartridge cases. This research is a qualitative comparative profiling study, designed to create a reference database of the most characteristic elemental markers for commonly used … …American Journal of Applied Sciences, Vol. 22, Issue 1 · 6 Mar 2026 · 2,726 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDeep Learning-Based Spectrum Sensing in Cognitive Radio Networks using Stacked LSTM: Performance Analysis of SNR and BERKavitha Veerappan, Seetharaman GopalakrishnanRapid evolution of wireless communication technologies and emergence of 5G networks have addressed lack of spectrum resources, highlighting the need for innovative topologies to improve the spectrum utilization. Due to this reason, Cognitive Radio (CR) has evolved as an optimized solution to overcome these difficulties by allowing dynamic spectrum access, thereby reducing the under-usage of available spectrum. Considering this, precise … …Journal of Computer Science, Vol. 21, Issue 11 · 19 Dec 2025 · 2,219 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImpact of Multiplex PCR Panel on Reducing Broad-Spectrum Antibiotic Use in Ventilator-Associated PneumoniaMaría Inés Staneloni, Emilio F. Huaier Arriazu et al.The extended use of broad-spectrum antimicrobials contribute to the growing threat of antimicrobial resistance. This study evaluated the impact of a multimodal strategy aiming at reducing the duration of broad-spectrum antimicrobial therapy in Ventilator-Associated Pneumonia (VAP). Conducted in a single Intensive Care Unit (ICU), this quasi-experimental, retrospective study compares a pre-intervention period (08/01/2018-07/01/2019) with an intervention period (08/01/2022-07/01/2023). Adult patients … …American Journal of Infectious Diseases, Vol. 21, Issue 1 · 8 Jul 2025 · 6,582 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA New Spectral Conjugate Gradient Method for Nonlinear Unconstrained OptimizationIbtisam A. Masmali, Zabidin Salleh, Ahmad AlhawaratTheconjugate gradient method is widely used to solve large scale unconstrainedoptimization problems. However, the rate of convergence conjugate gradient method is linearunless it restarted. In this study, we present a new spectral conjugategradient modification formula with restart property obtains the globalconvergence and descent properties.In addition, we proposed a new restart condition for Fletcher-Reeves conjugate gradient formula. The numerical resultsdemonstrated that … …Journal of Computer Science, Vol. 17, Issue 6 · 5 Jul 2021 · 6,653 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSpectral and Luminescence Properties of Manganese Doped Sodium Lead Alumino Borosilicate Glass SystemK. Vijaya Babu, A. Subba Rao, K. Naresh Kumar, M. Venugopala RaoNa2O-PbO-Al2O3-B2O3-SiO2 glasses mixed with different concentrations of MnO (ranging from 0.3 to 0.9 mol %) was prepared by melt quenching technique. The samples were characterized by X-ray diffraction technique, Optical absorption and Photo luminescence technique. A prepared glass sample is confirmed by X-ray diffraction spectra. The optical absorption spectra of these glasses exhibited a predominant broad band peak at 21,052 … …Journal of Aircraft and Spacecraft Technology, Vol. 3, Issue 1 · 22 Nov 2019 · 7,114 accessesView PDFCite
Case ReportOpen accessEvery word in the titleClinical Case Report of a Novel Immunotherapeutic Approach to Autism Spectrum Disorders based on an emulsion of Chondroitin Sulfate, Vitamin D3 and Oleic AcidNicola Antonucci, Stefania Pacini, Marco RuggieroIn this clinical case report we describe the effects associated with the administration of a supplement constituted by chondroitin sulfate, vitamin D3 and oleic acid (Rerum®) on the symptoms of Autism Spectrum Disorders (ASD). 44 patients (11 females and 33 males) were administered this supplement for a period of two months and variations of symptomatology were evaluated by the Clinical … …American Journal of Immunology, Vol. 13, Issue 3 · 10 Aug 2017 · 19,224 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleThe Etiological Role of Microglia in Autism Spectrum Disorder: A Possible Route for Early InterventionRyan Slovak, Nitya G. ChakrabortyAutism Spectrum Disorder (ASD) is a dreaded diagnosis. The treatment options are sparse and our knowledge of its etiology is woefully lacking. The purpose of this review is to outline a unifying pathway for the pathogenesis of Autism Spectrum Disorder and to describe how this sequence could be exploited to offer early intervention to patients at high risk of developing … …American Journal of Immunology, Vol. 13, Issue 2 · 24 Jun 2017 · 7,324 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleExtended-Spectrum β-Lactamases Producing Escherichia coli Strains Monitored Over 4 Years in The University Hospital in Košice, SlovakiaViera Lovayová, Lucia Vargová, Mária Nagyová et al.The beta-lactamases with extended spectrum of activity (ESBL) are medically one of the most important group of enzymes. The presented study provides identification and determination of the spectrum of resistance against different and clinically used antimicrobial drugs in the clinical isolates of Escherichia coli. These isolates had their origin in different departments of the University Hospital L. Pasteur in Košice. … …Current Research in Microbiology, Vol. 7, Issue 1 · 16 Jun 2016 · 14,537 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleSecondary User Sensing Time Optimization in Sensing-Transmission Scheduling for Dynamic Spectrum Access in Cognitive RadioInderdeep Kaur Aulakh, Renu VigThe constraint of limited frequency spectrum for wireless communication is very daunting. The radio spectrum licensed to permanent users is wasted at times when not used continuously. Cognitive radio technology involves a change in regulation of radio spectrum. In cognitive radio networks a secondary user network is designed for efficiently using gaps in spectrum and not causing at the same … …Journal of Computer Science, Vol. 11, Issue 8 · 5 Nov 2015 · 7,343 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleFar-Red Spectrum of Second Emerson Effect: A Study Using Dual-Wavelength Pulse Amplitude Modulation FluorometryV. S. Lysenko, T. V. Varduny, E. I. Simonovich et al.Non-additive enhancement of the photosynthesis excited by simultaneous illumination with far-red light and light of shorter wavelengths is called as "second Emerson effect". Its action spectra are well-known as a photosynthetic yield's dependence on light wavelength in red (630-690 nm) spectral region at a constant-wavelength far-red illumination near 700-715 nm. However, the opposite dependence of the photosynthetic yield's of shorter … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 4 · 19 Nov 2014 · 7,957 accessesView PDFCite