A5082531988- Advanced X-ray and CT Imaging
- Medical Imaging Techniques and Applications
- Digital Radiography and Breast Imaging
- Radiation Detection and Scintillator Technologies
- Particle Detector Development and Performance
- Nuclear Physics and Applications
- SARS-CoV-2 and COVID-19 Research
- SARS-CoV-2 detection and testing
- COVID-19 diagnosis using AI
- COVID-19 Clinical Research Studies
- Cell Image Analysis Techniques
- Insect and Pesticide Research
- Vector-borne infectious diseases
- Image Processing Techniques and Applications
- Dental Radiography and Imaging
- Advanced X-ray Imaging Techniques
- Entomopathogenic Microorganisms in Pest Control
- Polymer Nanocomposite Synthesis and Irradiation
- Radiation Dose and Imaging
- Advanced Semiconductor Detectors and Materials
- Fullerene Chemistry and Applications
- Dermatological and COVID-19 studies
- Long-Term Effects of COVID-19
- Conservation Techniques and Studies
- Cholangiocarcinoma and Gallbladder Cancer Studies
Cuban Neuroscience Center
2021-2023
Aintree University Hospitals NHS Foundation Trust
2023
University of Liverpool
2023
Instituto de Estudios Avanzados
2020
Instituto de Medicina Tropical “Pedro Kourí”
2020
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
2003-2017
Agencia de Energía Nuclear y Tecnologías de Avanzada
2008
There is an urgent need to understand severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-host interactions involved in virus spread and pathogenesis, which might contribute the identification of new therapeutic targets. In this study, we investigated presence SARS-CoV-2 postmortem lung, kidney, liver samples patients who died with disease (COVID-19) its relationship host factors using microscopy-based methods. The cases analyzed showed advanced stages diffuse alveolar damage...
Abstract Background The novel coronavirus SARS-CoV-2 is the etiological agent of COVID-19. This virus has become one most dangerous in recent times with a very high rate transmission. At present, several publications show typical crown-shape grown cell cultures. However, an integral ultramicroscopy study done directly from clinical specimens not been published. Methods Nasopharyngeal swabs were collected 12 Cuban individuals, six asymptomatic and RT-PCR negative (negative control) others...
Dual‐energy mammographic imaging experimental tests have been performed using a compact dichromatic system based on conventional x‐ray tube, mosaic crystal, and 384‐strip silicon detector equipped with full‐custom electronics single photon counting capability. For simulating mammal tissue, three‐component phantom, made of Plexiglass, polyethylene, water, has used. Images collected three different pairs energies: , . A Monte Carlo simulation the experiment also carried out MCNP‐4C transport...
Abstract Background The novel coronavirus SARS-CoV-2 is the etiological agent of COVID-19. This virus has become one most dangerous in recent times with a very high rate transmission. At present, several publications show typical crown-shape grown cell cultures. However, an integral ultramicroscopy study done directly from clinical specimens not been published. Methods Nasopharyngeal swabs were collected two Cuban individuals, asymptomatic and RT-PCR negative (negative control) other...
We present results obtained with a single photon counting system consisting of 384 silicon microstrips 100 micron pitch equipped 6 RX64 ASICs. The ASIC includes charge preamplifier, shaper, discriminator and 20‐bit counter for each its 64 channels. energy resolution the has been measured in range from 8 keV to 32 using fluorescence X‐ray lines several targets, either an Am‐241 source or tube. Then, efficiency determined specially developed quasi‐monochromatic beams 18–36 KeV. Good edge‐on...
The aim of the present work is to study radiation damage induced in LYSO and LuYAP crystals by gamma secondary electrons/positrons generated. displacements per atom (dpa) distributions inside each material were calculated following Monte Carlo assisted Classical Method (MCCM) introduced authors. As sources used Sc-44, Na-22 V-48. Also energy gammas from annihilation processes (511 keV) was included study. This procedure allowed studying in-depth dpa crystal for all four sources. It also...
The Monte Carlo simulation of small animal conventional positron emission tomography (PET) is an important tool for geometry parameters optimization, image reconstruction algorithm tests, performance different radioisotopic sources and some others. present work deals with the study a cylindrical PET system in framework GEANT4 code. Two accepted ring width values spherical 18F 44Sc isotopes were considered. Then, improvement detection efficiency spatial resolution was analyzed all cases.
Abstract Possibly, and due to poor eating habits unhealthy lifestyle, many virus are transmitted human people. Such is the case, of novel coronavirus SARS-Cov-2, which has expanded exponential way, practically, whole world population. For this reason, study real microscopic images great importance. The SARS-Cov-2 were captured from nasopharyngeal samples Cuban symptomatic individuals (RT-PCR positives for SARS-CoV-2), processed via scanning electron microscopy. However, times these present...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation A. E. Cabal, W. Dabrowski, Díaz, P. Gryboś, Giubellino, L. M. Montaño, Ramello, K. Świentek, R. Wheadon; Feasibility of Silicon strip detectors low noise multichannel readout system for medical digital radiography. AIP Conf. Proc. 29 August 2002; 630 (1): 202–207. https://doi.org/10.1063/1.3682862 Download...
We present results obtained with a single photon counting system of 384 silicon microstrips (100 micron pitch) equipped six RX64DTH ASICs including charge preamplifier, shaper, two discriminators and 20-bit counters for each channel. The energy resolution the was determined to be 0.72 keV (rms) spread threshold setting 0.32 whole 384-channel module (at energies 29-33 keV), indicating its excellent potential dual-energy imaging. Images mammographic test object made PMMA, polyethylene water...