A5072042505- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Earthquake Detection and Analysis
- Geomagnetism and Paleomagnetism Studies
- GNSS positioning and interference
- Magnetic Field Sensors Techniques
- Geophysical and Geoelectrical Methods
- Magnetic Properties and Applications
- Solar Radiation and Photovoltaics
- Atmospheric Ozone and Climate
- Power Line Communications and Noise
- Power System Optimization and Stability
- Oceanographic and Atmospheric Processes
- Liver Disease Diagnosis and Treatment
- Advanced Electrical Measurement Techniques
- Complex Systems and Time Series Analysis
- Geophysics and Gravity Measurements
- Tropical and Extratropical Cyclones Research
- Liver Diseases and Immunity
- Extracellular vesicles in disease
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Inertial Sensor and Navigation
- Inhalation and Respiratory Drug Delivery
- Liver physiology and pathology
- Neural Networks and Applications
Binzhou University
2025
Binzhou Medical University
2014-2025
National Institute for Space Research
2013-2024
Leibniz Institute of Atmospheric Physics at the Rostock University
2024
University of Rostock
2024
National Space Science Center
2020
State Key Laboratory of Space Weather
2020
Universidade de Taubaté
2013-2016
Abstract: Most chronic respiratory diseases often lead to the clinical manifestation of pulmonary fibrosis. Inflammation and immune disorders are widely recognized as primary contributors onset Given that macrophages predominantly responsible for inflammation disorders, in this review, we first focused on role different subpopulations lung discussed crosstalk between other cells, such neutrophils, regulatory T NKT B lymphocytes during fibrogenesis. Subsequently, analyzed interaction...
Fibroblast-to-myofibroblast differentiation is the main cytopathologic characteristic of pulmonary fibrosis. However, its underlying molecular mechanism remains poorly understood. This study elucidated that nuclear export lncNONMMUT062668.2 (lnc668) exacerbated fibrosis by activating fibroblast-to-myofibroblast differentiation. Mechanistic research revealed histone H3K9 lactylation in promoter region N6-methyladenosine (m6A) writer METTL3 was enriched to enhance transcription, leading lnc668...
In the present work, we analyze competition between tidal winds and electric fields in formation of blanketing sporadic E layers (Esb) over São Luís, Brazil (2° 31′ S, 44° 16′ W), a quasi-equatorial station. To investigate this competition, have used an ionospheric region model (MIRE) that is able to Esb taking into account fields. The calculates densities for main molecular metallic ions by solving continuity momentum equations each species. Thus, purpose analysis verify role occurrence or...
Abstract We have investigated the ionospheric response close to subsolar point in South America due strong solar flare (X2.8) that occurred on 13 May 2013. The present work discusses sudden disturbances D region form of high‐frequency radio wave blackout recorded ionograms, E Sq current and equatorial electrojet intensifications, enhancement decay total electron content (TEC) as observed by a network Global Navigation Satellite Systems receivers, last these manifestations constituting main...
Context: One approach to protect against liver fibrosis is the use of herb-derived natural compounds, such as hydroxysafflor yellow A (HSYA). The antifibrosis effect HYSA has been investigated; however, its mechanisms have not yet entirely revealed.Objectives: To study protective effects HSYA on induced by carbon tetrachloride (CCl4) and a high-fat diet (HFD), determine mechanism action HSYA.Materials methods: CCl4 HFD were used mimic in rats, serum biochemical indicators determined....
Abstract The present work is the first of a two‐part paper on Embrace Magnetometer Network. In this part, we new Network (Embrace MagNet) in South America, which originally planned to cover most eastern portion Southern America longitudinal sector by installing and operating fluxgate magnetometer stations. We discuss purpose scientific goals network, associated with aeronomy space weather. provide details instrumentation, location sensors, sensitivity matching process, gain installation....
Abstract The present work shows the preliminary results from analysis for developing an ionospheric scale index map based on Disturbance Ionosphere indeX (DIX). This aims to target all different user groups affected by disturbances, example, navigation, positioning, and satellite communication users, in a simple straightforward approach. Therefore, we used vertical total electron content (VTEC) over South America calculate (TEC) maps covering latitudes 60°S 20°N longitudes 90°W 30°W, with...
Abstract Ionospheric irregularities as plasma bubbles occur in the ionosphere, and generally, they are characterized by low density regions. The Rate Of TEC Index (ROTI) was defined terms of Total Electron Content (TEC) variation is used to characterize these bubbles. It essential evaluate ROTI behavior since ionospheric can cause fluctuations radio signal, interfering data analysis. Therefore, we performed this work a comparative study five different methods available calculate most...
Abstract During disturbed periods, E region electric fields can cause anomalous Es layer behavior, which is observed in the digital ionosonde data. To investigate influence of these development, we analyzed a set 20 magnetic storms from 2015 to 2018 over Boa Vista (BV, 2.8°N, 60.7°W, dip ∼18°), São Luís (SLZ, 2.3°S, 44.2°W, ∼8°), and Cachoeira Paulista (CXP, 22.41°S, 45°W, ∼35°). The field zonal components during main recovery phases each storm are computed study corresponding...
Abstract Sporadic‐E (Es) layers are investigated over five Digisonde stations located inside (Santa Maria and Cachoeira Paulista), boundary (São Luís), outside (Millstone Hill Port Stanley) the South American Magnetic Anomaly (SAMA) in course of 25 August 2018, geomagnetic storm. Data from Digisondes ground‐based magnetometer a numerical model E ‐region (MIRE) analyzed to search roles neutral winds electric fields as physical processes responsible for generation Es layers. Moreover, it is...
Abstract. This work presents an analysis of the ionospheric responses to solar eclipse that occurred on 14 December 2020 over Brazilian sector. event partially covers south Brazil, providing excellent opportunity study modifications in peculiarities occur this sector, as equatorial ionization anomaly (EIA). Therefore, we used Digisonde data available period for two sites: Campo Grande (CG; 20.47∘ S, 54.60∘ W; dip ∼23∘ S) and Cachoeira Paulista (CXP; 22.70∘ 45.01∘ ∼35∘ S), assessing E F...
Equatorial plasma bubbles (EPBs) can lead to signal degradation, affecting the measurement accuracy. Studying EPBs and their characteristics has gained increasing importance. The of were investigated using rate total electron content (TEC) index (ROTI) maps under different solar magnetic activity conditions during two periods: July 2014–July 2015 (solar maximum with F10.7: 145.9 × 10 −22 W⋅m −2 ⋅Hz −1 ) 2019–July 2020 minimum 69.7 ). We also divided this analysis according levels based on Kp...
Abstract In this study, we examine the spatiotemporal variability of global equivalent ionospheric current system estimated from geomagnetic Solar‐quiet (Sq) variations at 124 mid‐ to low‐latitude ground‐based magnetometer stations during 1–31 May 2020. period, activity was particularly low, that is, hourly index Hp60 did not exceed 4 o . The spherical harmonic analysis is performed on Sq estimate function each universal time hour. Hourly maps are used evaluate, for first time, tidal...
The dynamics of the electron population in Earth’s radiation belts affect upper atmosphere’s ionization level through low-energy Electron Precipitation (EP). impact EP on high-latitude ionosphere has been well explained since 1960’s decade. Conversely, it is still not understood for region South American Magnetic Anomaly (SAMA). In this study, we present results analysis strong geomagnetic storm associated with Interplanetary Coronal Mass Ejection (May 27-28, 2017). atypical auroral sporadic...
We present a study about the atypical and spreading Sporadic E-layers (Es) observed in Digisonde data. analyzed set of days around space weather events from 2016 to 2018 over Cachoeira Paulista (CXP, 22.41°S, 45°W, dip ∼35°), low-latitude Brazilian station. The inhomogeneous Es layer is associated with auroral-type (Es ) occurrence this region due presence South American Magnetic Anomaly (SAMA). However, we also observe that layers occurred before magnetic storms or quiet times. Also,...
Abstract The present work is the second of a two‐part paper on Embrace Magnetometer Network. In this part, we provide some first scientific findings that have already achieved with network. We identified diurnal and seasonal natural variations H component. provided precise determination sudden storm commencements impulse. showed Δ amplitudes derived from MagNet during intense magnetic are in very good agreement Dst index. it possible to investigate effects solar quiet ionospheric current...
We have routinely monitored the total frequency (ftEs) and blanketing (fbEs) of sporadic E layers with digital sounder under magnetic equator in Brazilian sector. Sporadic appear equatorial region (Esq) at heights between 90 130 km, mainly due to irregularities electrojet current. However, during recovery phase October 2003 superstorm, an anomalous intensification ionospheric density that exceeded normal ambient background values for local time location was observed. The parameter fbEs rose...
Abstract. This work uses the Disturbance Ionosphere indeX (DIX) to evaluate ionospheric responses equatorial plasma bubble (EPB) events from 2013 2020 over Brazilian and low latitudes. We have compared DIX variations during EPBs ionosonde All-Sky Imager data, aiming physical characteristics of these events. Our results show that was able detect EPB-related TEC disturbances in terms their intensity occurrence times. Thus, agreed with ionosphere behavior before, during, after studied cases....
ABSTRACT. In this paper we present the first steps given towards development of South American K index (Ksa) based on measurements made by Embrace Magnetometer Network. We present: (a) a description magnetometer and network; (b) procedure used to calibrate network equipments; (c) obtain each station scale its corresponding upper limits ranges for three-hour-range (thereafter referred as K9 threshold); (d) some particularities regarding Quiet Day Curve (QDC) deviation long term...
Abstract In this work, the seasonal dependency of E region electric field (EEF) at dip equator is examined. The eastward zonal ( y ) and daytime vertical z fields are responsible for overall phenomenology equatorial low‐latitude ionosphere, including electrojet (EEJ) its plasma instability. components studied based on long‐term backscatter radars soundings (348 days both systems) collected during geomagnetic quiet Kp ≤ 3+), from 2001 to 2010, São Luís Space Observatory (SLZ), Brazil (2.33°S,...
Abstract This study examines the variability of ionospheric content during period around 2015 Saint Patrick magnetic storm and when equatorial plasma bubbles (EPBs) are observed quiet time over South America two other events. It uses scales index map based on disturbance (DIX). The results compared to traces ionograms obtained at three different stations (Fortaleza, Campo Grande, Cachoeira Paulista) in Brazil acquired same rate. is TEC developed “Brazilian Studies Monitoring Space Weather”...
The sudden enhancement in the mesospheric neutral metal layers (Ns) has been studied different latitudes for decades. Specifically, at 23°S, Sodium Ns have analyzed since their first observation end of seventies. Several studies reported during events energetic particle precipitation (EPP) and formation auroral-type sporadic E (Es a ) high-latitude stations. Es are also observed Brazilian low-latitude sector EPP due to South American Magnetic Anomaly (SAMA). However, despite extensive on...
Abstract Digisonde data showed a peculiar behavior in the nighttime lower ionosphere over Cachoeira Paulista (CXP, 22.7°S, 45°W, dip ∼35°), low‐latitude station located inside South American Magnetic Anomaly (SAMA) during main phase of extreme magnetic storm on 11 May 2024. The E region appeared observational at high altitudes after sunset, which is unexpected. In sequence, it performed an unusual descending movement due to disturbed electric field. extra ionization responsible for forming...
Abstract Santa Maria Digisonde data are used for the first time to investigate F region behavior during a geomagnetic storm. The August 25, 2018 storm is considered complex due incidence of two Interplanetary Coronal Mass Ejections and High‐Speed Solar Wind Stream (HSS). 2 layer critical frequency ( f o ) its peak height h m collected over Maria, near center South American Magnetic Anomaly (SAMA), compared with from Digisondes installed in Northern (NH) Southern (SH) Hemispheres sector....