A5102873971- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Radio Astronomy Observations and Technology
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- History and Developments in Astronomy
- Astronomical Observations and Instrumentation
- Superconducting and THz Device Technology
- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Atmospheric Ozone and Climate
- Cosmology and Gravitation Theories
- Historical Astronomy and Related Studies
- Quantum Chromodynamics and Particle Interactions
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Solar and Space Plasma Dynamics
- Adaptive optics and wavefront sensing
- Pulsars and Gravitational Waves Research
- Geophysics and Gravity Measurements
- Calibration and Measurement Techniques
- Atmospheric aerosols and clouds
Consejo Nacional de Investigaciones Científicas y Técnicas
2016-2025
Instituto de Tecnologías en Detección y Astropartículas
2016-2025
National University of General San Martín
2016-2025
National Technological University
2016-2025
De La Salle Lipa
2025
Cytoskeleton (United States)
2025
Infant
2025
Rafael Advanced Defense Systems (Israel)
2021-2024
First Technical University
2021-2024
Institut Català d'Ornitologia
2024
A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge dependence important understanding origin, acceleration, and propagation rays. We present detailed variation spectral index for first time. The progressively hardens at high rigidities.Received 6 March 2015DOI:https://doi.org/10.1103/PhysRevLett.114.171103This article available under terms Creative Commons Attribution 3.0...
Measurements of the positron fraction in high energy cosmic rays using space-borne Alpha Magnetic Spectrometer have been extended to energies 500 GeV. The new results show that stops increasing with at around 200
Precision measurements by the Alpha Magnetic Spectrometer on International Space Station of primary cosmic-ray electron flux in range 0.5 to 700 GeV and positron 500 are presented. The each require a description beyond single power-law spectrum. Both change their behavior at ∼30 but fluxes significantly different magnitude energy dependence. Between 20 200 spectral index is harder than index. determination differing indices versus new observation provides important information origins...
Knowledge of the precise rigidity dependence helium flux is important in understanding origin, acceleration, and propagation cosmic rays. A measurement primary rays with (momentum/charge) from 1.9 GV to 3 TV based on 50 million events presented compared proton flux. The detailed variation spectral index for first time. progressively hardens at rigidities larger than 100 GV. similar that though magnitudes are different. Remarkably, ratio increases up 45 then becomes constant; above well...
A precision measurement by AMS of the antiproton flux and antiproton-to-proton ratio in primary cosmic rays absolute rigidity range from 1 to 450 GV is presented based on 3.49×10^{5} events 2.42×10^{9} proton events. The fluxes ratios charged elementary particles are also presented. In ∼60 ∼500 GV, p[over ¯], p, positron e^{+} found have nearly identical dependence electron e^{-} exhibits a different dependence. Below 60 (p[over ¯]/p), ¯]/e^{+}), (p/e^{+}) each reaches maximum. From show no...
Knowledge of the rigidity dependence boron to carbon flux ratio (B/C) is important in understanding propagation cosmic rays. The precise measurement B/C from 1.9 GV 2.6 TV, based on 2.3 million and 8.3 nuclei collected by AMS during first 5 years operation, presented. detailed variation with spectral index reported for time. does not show any significant structures contrast many ray models that require such at high rigidities. Remarkably, above 65 GV, well described a single power law R^{Δ}...
We present a measurement of the cosmic ray (e^{+}+e^{-}) flux in range 0.5 GeV to 1 TeV based on analysis 10.6 million events collected by AMS. The statistics and resolution AMS provide precision flux. is smooth reveals new distinct information. Above 30.2 GeV, can be described single power law with spectral index γ=-3.170±0.008(stat+syst)±0.008(energy scale).
The Q $\&$ U Bolometric Interferometer for Cosmology (QUBIC) is a novel kind of polarimeter optimized the measurement B-mode polarization Cosmic Microwave Background (CMB), which one major challenges observational cosmology. signal expected to be order few tens nK, prone instrumental systematic effects and polluted by various astrophysical foregrounds can only controlled through multichroic observations. QUBIC designed address these issues with approach that combines advantages...
New radial-velocity observations of 37 O- and B stars in the very young open cluster NGC 6231 confirm high frequency short-period spectroscopic binaries on upper main sequence. Among 14 O-type stars, covering all luminosity classes from dwarfs to supergiants, 8 are definitively double-lined systems periods but one shorter than 7 days. Several additional have been detected among early B-type stars. is an exceptional constrain scenarios cluster- binary-star formation over a large range stellar...
Cyanobacterial blooms pose significant environmental and public health risks due to the production of toxins that contaminate water sources disrupt aquatic ecosystems. Rapid accurate identification cyanobacterial species is crucial for effective monitoring management strategies. In this study, we combined Raman spectroscopy with deep learning techniques classify four toxic species: Dolichospermum crassum, Aphanizomenon sp., Planktothrix agardhii Microcystis aeruginosa. Spectral data were...
<ns4:p>Citizen science projects optimise the democratisation of production scientific knowledge. In these initiatives, research processes do not rely solely on scientists’ but citizens’ engagement, likewise with benefits both sides. As previous work shows, inclusivity perspective citizen might be viewed critically as some groups citizens tend to overrepresented in initiatives while others are left out. This paper explores claim and based four fields astrophysics particle physics platform...
A doença arterial periférica (DAP) é caracterizada pelo estreitamento ou obstrução das artérias periféricas, resultante principalmente de processos ateroscleróticos. Nos últimos anos, a inflamação crônica tem sido identificada como um dos mecanismos centrais na patogênese da DAP. modulação resposta inflamatória, portanto, surge possível alvo terapêutico para o tratamento e prevenção O presente artigo objetivo geral analisar papel explorar novas abordagens terapêuticas que visam modular...
A síndrome de Fournier (SF) é uma infecção necrosante rara e rapidamente progressiva, caracterizada pela gangrena das partes moles da região perineal, genital abdominal inferior. O diagnóstico em pacientes imunocomprometidos desafiador, a natureza agressiva exige um tratamento imediato abrangente. presente artigo tem como objetivo geral analisar os desafios diagnósticos terapêuticos na gestão imunocomprometidos. pesquisa fundamentada revisão abrangente literatura existente, para coleta dos...
A growing consensus understands the Stroop Interference as a phenomenon involving conflict and cognitive control. Research shows that incongruent stimuli create when trying to focus on both elements. It was hypothesized people would take longer recognize mismatched colors compared matched colors, which can significantly impact reaction times. This study examined Effects of Cognitive Reaction Time Among College Students in Lipa City. The researchers used within-subject design convenience...
Abstract Background Reports from low- and middle-income countries (LMICs) indicate lower survival for children with medulloblastoma (MB), though these studies are mainly single institutions or countries. This retrospective study aimed to analyze the outcomes MB in 9 centers 8 Methods Patients &lt;18 years newly diagnosed MB, between 2014 2018, were included. Clinical biological characteristics collected, patient analyzed. Results A total of 335 patients The median age was 7.7 years, 51...
Abstract A prototype version of the Q & U bolometric interferometer for cosmology (QUBIC) underwent a campaign testing in laboratory at Astroparticle Physics and Cosmology Paris (APC). The detection chain is currently made 256 NbSi transition edge sensors (TES) cooled to 320 mK. readout system 128:1 time domain multiplexing scheme based on 128 SQUIDs 1 K that are controlled amplified by SiGe application specific integrated circuit 40 K. We report performance this characterization TES....
In this paper we describe QUBIC, an experiment that will observe the polarized microwave sky with a novel approach, which combines sensitivity of state-of-the art bolometric detectors systematic effects control typical interferometers. QUBIC unique features are so-called "self-calibration", technique allows us to clean measured data from instrumental effects, and its spectral imaging power, i.e. ability separate signal in various sub-bands within each frequency band. two main bands: 150 GHz...
Abstract The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarization anisotropies [1] in the CMB at angular scales around ℓ ≃100 recombination peak. Systematic errors make observations of B modes millimetre wavelengths very challenging QUBIC mitigates these problems somewhat complementary way other existing or planned experiments using novel technique bolometric interferometry. This takes advantage sensitivity an imager...
Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes sky in wide frequency band and can reconstruct maps several sub-bands within physical post-processing of data. This provides powerful method discriminate between cosmic microwave background (CMB) astrophysical foregrounds. In this paper, methodology illustrated with examples based on Q \& U Interferometer for Cosmology (QUBIC) which ground-based instrument...