V. Espinosa
A5076004566- Astrophysics and Cosmic Phenomena
- Underwater Acoustics Research
- Neutrino Physics Research
- Water Quality Monitoring Technologies
- Marine animal studies overview
- Acoustic Wave Phenomena Research
- Fish Ecology and Management Studies
- Nonlinear Dynamics and Pattern Formation
- Marine and fisheries research
- Advanced Fiber Laser Technologies
- Dark Matter and Cosmic Phenomena
- Laser-Matter Interactions and Applications
- Particle physics theoretical and experimental studies
- Photonic Crystals and Applications
- Mechanical and Optical Resonators
- Ultrasound Imaging and Elastography
- Fish Biology and Ecology Studies
- Ultrasonics and Acoustic Wave Propagation
- Underwater Vehicles and Communication Systems
- Particle accelerators and beam dynamics
- Semiconductor Lasers and Optical Devices
- Microfluidic and Bio-sensing Technologies
- Quantum optics and atomic interactions
- Fish biology, ecology, and behavior
- stochastic dynamics and bifurcation
Universitat Politècnica de València
2012-2024
Institute of Advanced Chemistry of Catalonia
2023-2024
Universidad Nacional de La Plata
2023
Universitat de València
1995-2022
Instituto de Física Corpuscular
2022
University of Palermo
2020
HR Wallingford
2020
National Research Council
2020
University of British Columbia
2008-2016
Universidad Autónoma de Madrid
2015
According to World Health Organization estimates, sepsis accounts for 60%-80% of lost lives per year in childhood. Measures appropriate resource-scarce and resource-abundant settings alike can reduce deaths. In this regard, the Federation Pediatric Intensive Care Critical Societies Board Directors announces Global Sepsis Initiative, a quality improvement program designed improve care children with sepsis.To announce global initiative; justify some bundles that are included; show preliminary...
The next generation of water Cherenkov neutrino telescopes in the Mediterranean Sea are under construction offshore France (KM3NeT/ORCA) and Sicily (KM3NeT/ARCA). KM3NeT/ORCA detector features an energy detection threshold which allows to collect atmospheric neutrinos study flavour oscillation. This paper reports sensitivity this phenomenon. event reconstruction, selection classification described. determine mass ordering was evaluated found be 4.4 $\sigma$ if true is normal 2.3 inverted,...
Abstract The optical module of the KM3NeT neutrino telescope is an innovative multi-faceted large area photodetection module. It contains 31 three-inch photomultiplier tubes in a single 0.44 m diameter pressure-resistant glass sphere. sensory device also comprising calibration instruments and electronics for power, readout data acquisition. capped with breakout-box connection to electro-optical cable power long-distance communication onshore control station. design was qualified first time...
Abstract Objective To determine early outcomes and improvements in a prospective inception cohort of children with juvenile idiopathic arthritis (JIA) treated current standard therapies. Methods Patients selected were enrolled an JIA, the Research Arthritis Canadian Children Emphasizing Outcomes Study. The rheumatoid core criteria set measures completed at enrollment 6 months later. Frequencies normal values for each American College Rheumatology (ACR) Pediatric 30, 50, 70 (Pedi 70) response...
Objective Biliary atresia (BA), a leading cause of paediatric liver failure and transplantation, manifests by three weeks life as jaundice with acholic stools. Poor outcomes due to delayed diagnosis remain problem worldwide. We evaluated assessed the cost-effectiveness methods introducing BA Infant Stool Colour Card (ISCC) screening programme in Canada. Setting Methods A prospective study at BC Women’s Hospital recruited consecutive healthy newborns through six incrementally more intensive...
A hydroxycinnamic acid derivative, namely ferulic (FA) has been successfully encapsulated in polymeric nanoparticles (NPs) based on poly(lactic-co-glycolic acid) (PLGA). FA-loaded NPs were prepared from O/W nano-emulsion templates using the phase inversion composition (PIC) low-energy emulsification method. The obtained PLGA exhibited high colloidal stability, good drug-loading capacity, and particle hydrodynamic diameters range of 74 to 117 nm, depending FA concentration used. In vitro drug...
We predict theoretically the nondiffractive propagation of sonic waves in periodic acoustic media (sonic crystals) by expansion into a set plane (Bloch mode expansion) and finite-difference time-domain calculations finite beams. also give analytical evaluations parameters for propagation, as well minimum size nondiffractively propagating
We present an experimental demonstration of the subdiffractive propagation (self-collimation) ultrasound beam in a two-dimensional sonic crystal formed by square array steel cylinders inmersed water. Measurements show that diffractive spreading narrow is strongly reduced along spatially modulated direction crystal. The effect finite length theoretically analyzed, resulting frequency shift point good correspondence with results.
Abstract The KM3NeT research infrastructure is under construction in the Mediterranean Sea. It consists of two water Cherenkov neutrino detectors, ARCA and ORCA, aimed at astrophysics oscillation research, respectively. Instrumenting a large volume sea with $$\sim {6200}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>∼</mml:mo> <mml:mn>6200</mml:mn> </mml:mrow> </mml:math> optical modules comprising total {200{,}000}$$ <mml:mn>200</mml:mn> <mml:mo>,</mml:mo>...
Abstract This study investigates biometric relationships in Oreochromis niloticus (gray tilapia) reared controlled pond environments at the Centro de Investigación Piscícola (CINPIS), Universidad Nacional Agraria La Molina (Perú), over a 3-year period (2021–2023). Focusing on total length ( $${L}_{t}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>L</mml:mi> <mml:mi>t</mml:mi> </mml:msub> </mml:math> ), standard $${L}_{s}$$ <mml:mi>s</mml:mi> height $$H$$...
We present the experimental demonstration of self-collimation (subdiffractive propagation) an ultrasonic beam inside a three-dimensional sonic crystal. The crystal is formed by two crossed steel cylinders structures in woodpile-like geometry disposed water. Measurements 3D field distribution show that narrow which diffractively spreads absence strongly collimated propagation crystal, demonstrating effect.
The KM3NeT research infrastructure is under construction in the Mediterranean Sea. will study atmospheric and astrophysical neutrinos with two multi-purpose neutrino detectors, ARCA ORCA, primarily aimed at GeV-PeV neutrinos. Thanks to multi-photomultiplier tube design of digital optical modules, capable detecting burst from a Galactic or near-Galactic core-collapse supernova. This potential already exploitable first detection units deployed sea. paper describes real-time implementation...
This paper evaluates the impact of using deep learning techniques in an automatic fish sizing process. Automatic with a non-invasive approach involves working different views fish's body and changing environments, being stage extraction individuals image quality segmentation essential to obtain good measurements. The goal this work is improve results functionality achieved our previous studies conventional methods based on local thresholding, where limitations were observed, mainly necessity...
Abstract The optical data transport system of the KM3NeT neutrino telescope at bottom Mediterranean Sea will provide more than 6000 modules in detector arrays with a point-to-point connection to control stations onshore. ARCA and ORCA detectors are being installed depth about 3500 m 2500 m, respectively their distance is 100 kilometers 40 kilometers. In particular, two optimised for detection cosmic neutrinos energies above 1 TeV (ARCA) atmospheric range GeV–1 (ORCA). expected maximum rate...
Abstract This article reports the first observation of Moon and Sun shadows in sky distribution cosmic-ray induced muons measured by KM3NeT/ORCA detector. The analysed data-taking period spans from February 2020 to November 2021, when detector had 6 Detection Units deployed at bottom Mediterranean Sea, each composed 18 Digital Optical Modules. were detected their nominal position with a statistical significance 4.2 $$\sigma $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">...
In this article, the evolution of BFT (bluefin tuna) sizes in fattening cages is studied, for which it was necessary to perform exhaustive monitoring with stereoscopic cameras and an analysis data using automatic procedures. Exploring size over a long period important step inferring their growth patterns, are essential designing smart aquaculture sustainable fishing, even assessing health status. An objective work verify whether tuna captivity, addition fattening, grow length. To end, our...
This article presents a non-invasive fully automatic procedure for Bluefin Tuna sizing, based on stereoscopic vision system and deformable model of the fish ventral silhouette. An image processing is performed each video frame to extract individual fish, followed by fitting adjust extracted targets, adapting it bending movements fish. The proposed able give accurate measurements tuna snout fork length (SFL) widths at five predefined silhouette points without manual intervention. In this...
Anthropogenic activities are causing increased noise levels in the marine environment. To date, few studies have been undertaken to investigate effects of different frequencies on behaviour juvenile fish. In this study, behavioural changes gilthead seabream (Sparus aurata) evaluated when exposed white filtered third-octave bands centred at 63, 125, 500, and 1000 Hz (sound pressure level, 140–150 dB re 1 μΡa) for 7 h. The group dispersion, motility, swimming height fish were analysed before...
The KM3NeT Collaboration is currently constructing a multi-site high-energy neutrino telescope in the Mediterranean Sea consisting of matrices pressure-resistant glass spheres, each holding set 31 small-area photomultipliers. main goals are observation sources Universe and measurement oscillation parameters with atmospheric neutrinos. A relative time synchronisation between photomultipliers nanosecond order needed to guarantee required angular resolution detector. Due large detector volumes...
BackgroundInflammatory bowel disease (IBD) incidence is increasing among low-risk populations. This study examined a cohort of Canadian South Asian (SA) children with IBD to determine if their course differed from non-SA (NSA) children.