26 results on '"Salice, P"'
Search Results
2. Effects of different ventilatory settings on alveolar and pulmonary microvessel dimensions in pigs
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Damiani, Elisa, Casarotta, Erika, Di Bella, Caterina, Galosi, Margherita, Angorini, Alessio, Serino, Federica, Tambella, Adolfo Maria, Laus, Fulvio, Zuccari, Samuele, Salvucci Salice, Alessio, Domizi, Roberta, Carsetti, Andrea, Ince, Can, and Donati, Abele
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- 2024
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3. The Effects of Legacy Sediment Removal and Floodplain Reconnection on Riparian Plant Communities
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Baltzer, Patrick J., Moore, Joel, Salice, Christopher J., and Beauchamp, Vanessa B.
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- 2024
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4. Husserl on shared intentionality and normativity
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Salice, Alessandro
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- 2023
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5. Diversity and seasonal variation of the molluscan community associated with the seagrass Halodule wrightii in a marine protected area in the southern Gulf of California
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Pérez-Estrada, C. J., Rodríguez-Estrella, R., Brun-Murillo, F. G., Gurgo-Salice, P., Valles-Jiménez, R., Morales-Bojórquez, E., and Medina-López, M. A.
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- 2023
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6. Arterial hypertension and cystatin C during neonatal physiologic dehydration
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Crippa, Beatrice L., Ghirardello, Stefano, Colombo, Lorenzo, Tel, Francesca, Zanotta, Lidia, Consonni, Dario, Salice, Patrizia, Ghiglia, Silvia, Mosca, Fabio, and Ardissino, Gianluigi
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- 2022
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7. Pulmonary Artery Pseudoaneurysm Due to Pulmonary Artery Catheter Placement: A New Minimally Invasive Approach to Solve a Life-threatening Complication.
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Russo, Roberta, Calzolari, Alessandro, Salice, Valentina, Micieli, Camilla, Castiglioni, Claudia, Gomarasca, Mattia, Mondin, Federico, Salihovic, Bedrana Moro, Orsenigo, Francesca, Negroni, Davide, Migliorisi, Carmelo, Lucchelli, Matteo, and Mistraletti, Giovanni
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This article discusses a pulmonary artery pseudoaneurysm (PAP) formation following pulmonary artery catheter (PAC) placement for cardiac surgery. The patient, an 82-year-old female with a history of hypertension and chronic heart failure, underwent elective mitral and tricuspid valve surgery. After surgery, bleeding was observed in the endotracheal tube, indicating a potential complication. Fiberoptic bronchoscopy revealed bleeding mainly in the right bronchus. Subsequent computed tomography pulmonary angiogram (CTPA) confirmed the presence of a small pseudoaneurysm in a branch of the pulmonary artery. Prompt collaboration between anesthesiologists, cardiac surgeons, and interventional radiologists led to the successful embolization of the pseudoaneurysm with a minimally invasive approach by using the PAC as a guide catheter to reach the PAP. The article outlines the potential causes of PAP formation, clinical presentation, and management strategies. While conservative, surgical, and interventional approaches are discussed, the preferred treatment is coil embolization due to its effectiveness and minimal invasiveness. The authors emphasize the importance of rapid diagnosis, multidisciplinary collaboration, and the feasibility of using the pulmonary artery route for embolization to rapidly reach the lesion to stabilize. Overall, the case demonstrates the successful resolution of a life-threatening complication through timely intervention and coordinated teamwork. [ABSTRACT FROM AUTHOR]
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- 2025
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8. The Phenomenality and Intentional Structure of We-Experiences
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Salice, Alessandro
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- 2022
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9. Multiple, random spot urine sampling for estimating urinary sodium excretion
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Ardissino, Gianluigi, Vergori, Antonio, Vergori, Cesare, Martelli, Laura, Daccò, Valeria, Villa, Maria Cristina, Masciani, Martino, Monzani, Alice, Salice, Patrizia, Ghiglia, Silvia, Perrone, Michela, Capone, Valentina, Mancuso, Maria Cristina, Giussani, Antenore, Pieri, Giovanni Raimondo, Bosco, Annalisa, Brambilla, Marta, Romano, Roberto, Rotondo, Stefania, and Buzzetti, Roberto
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- 2022
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10. NARRATING SUSTAINABLE FOOD CONSUMPTION.
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Allegretti, Veronica, Genova, Carlo, Salice, Silvia Mazzucotelli, Noia, Eleonora, and Toldo, Alessia
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- 2024
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11. ASSESSMENT OF THE EFFICACY OF HYPERGLYCEMIA RISK CLASSIFICATION AND INTRAOPERATIVE GLUCOSE CONTROL PROTOCOL IN ADULT CARDIAC SURGERY PATIENTS.
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SALICE, VALENTINA, PARATICO, CHIRSTOPHER, LUCCHELLI, MATTEO, RUSSO, ROBERTA, GOMARASCA, MATTIA, ORSENIGO, FRANCESCA, MONDIN, FEDERICO, CALZOLARI, ALESSANDRO, MORO-SALIHOVIC, BEDRANA, CASTIGLIONI, CLAUDIA, and MISTRALETTI, GIOVANNI
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perioperative hyperglycemia is common in patients undergoing cardiac surgery and it is associated with increased risks of mortality and morbidity1. The pathogenesis of perioperative dysglycemia is a complex interaction between underlying patient's condition (diabetes, metabolic syndrome) and surgical stress. This study evaluates an intraoperative glucose control protocol designed according to the European Association for Cardio-Thoracic Surgery (EACTS) guidelines2 to manage blood glucose levels during surgery. we developed an intraoperative blood glucose (BG) control protocol (figure 1) with a target of BG <180 mg/dL. Patients were divided into three risk categories: very high (HH) for type 1 diabetes, high (H) for insulin-dependent or non-insulin- dependent diabetes, metabolic syndrome, or chronic steroid therapy, and low (L) for patients without these conditions. BG was measured first after general anesthesia induction, subsequently every 30-40 minutes, the last measurement was at ICU admission. Insulin therapy was started at BG>180 mg/dL for H and L groups, and BG>110 mg/dL for HH group. Patients with urgent or emergent surgeries were treated as H group regardless their comorbidities. 1-year retrospective analysis (March, 2023 – March, 2024). Data were analyzed by Sigmastat 11 (SPSS inc. Chicago, IL) and presented as mean ± SD or median [interquartile range], t-test was used for comparisons. 495 patients were treated with this protocol. Data from 442 patients (HH=1; H=266; L=175) were analyzed, while 53 patients (10%) were excluded due to incorrect protocol application. Overall 180 (41%) patients underwent glycemic control protocol as described above (HH n=1, 100%, H n=125, 46% and L n=54, 31%).344 patients underwent elective surgery and 35% of these (n=120; group L n= 53, 44%; group H n= 67, 56%) needed insulin protocol. Urgent surgeries showed a higher prevalence of hyperglycemia, affecting 60 of 97 patients (62%). Figure 2 describes intraoperative BG (off-pump surgery n=16, 3%; on-pump surgery n=426, 96% with CPB time = 107 [88-128] minutes). At the end of surgery, BG was on average under 180 mg/dl in all groups and urgent surgery. In the elective group BG at ICU admission was 145±40 mg/dL in patients with intraoperative insulin protocol, versus 136±25 mg/dL in patients who did not require insulin (p=0.010). A higher difference (<0.01) was observed in BG at ICU admission between patients that required insulin protocol and who did not (165±59 versus 129±24 mg/dL). Mild hypoglycemia was observed in 3 cases, all during elective surgery. Two patients in group H (BG 69 and 66 mg/dL) and one patient in group L (BG 57 mg/dL), treated without any complication. The protocol showed to be effective in managing intraoperative hyperglycemia, as reflected by a good glycemic control at ICU admission. The stratification of patients by risk allowed a more tailored approach which optimal BG control and minimal hypoglycemia risk. Furthermore, urgent surgery remains a significant trigger for hyperglycemia, resulting in more patients requiring the protocol application with less efficacy than the elective group. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Effectiveness of swapping to ustekinumab after vedolizumab failure in patients with multi-refractory Crohn's disease.
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Melotti, Laura, Dussias, Nikolas Konstantine, Salice, Marco, Calabrese, Carlo, Baldoni, Monia, Scaioli, Eleonora, Belluzzi, Andrea, Mazzotta, Elena, Gionchetti, Paolo, and Rizzello, Fernando
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Ustekinumab (UST) and vedolizumab (VDZ) are biologic therapies for moderate-to-severe Crohn's disease (CD) in patients who failed or had contraindication to anti-TNF treatment. To evaluate ustekinumab efficacy as third-line treatment after swapping from VDZ for failure. We conducted a monocentric, retrospective, observational study where CD patients were followed for 12 months from the beginning of UST therapy. We assessed clinical activity (HBI) and laboratory markers (CRP) at the initiation of UST therapy (T0) and after 2(T2), 6(T6) and 12(T12) months. Endoscopic activity was recorded at T0 and T12. We registered data regarding their clinical history and previous biologic treatments. Steroid-free clinical remission was defined as HBI ≤ 4 without need for steroids. Clinical response was defined as HBI reduction of at least three points or the suspension of steroids. 27 CD patients treated with UST after VDZ failure had a minimum follow up of 12 months and were included. All patients had previously been treated with anti-TNF agents. After 12 months, steroid-free clinical remission was evident in 15 (55.5%) patients, 5 (18.5%) had clinical response, while 7 (26%) had suspended for failure or persisted on treatment after optimization. Ustekinumab should be considered as third-line biologic treatment in multi-refractory CD patients. [ABSTRACT FROM AUTHOR]
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- 2023
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13. Narratives and legacies of 1960s Vogue Italiacovers on contemporary Italian young women
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Noia, Eleonora, Mazzucotelli Salice, Silvia, and Capalbi, Antonella
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The article investigates the legacy, in terms of narratives and representations of femininity, of Vogue Italiacovers from the 1960s and 1970s on contemporary Italian young women. To do this, we visually and textually analyse two different corpora: 143 Vogue Italiacovers, retrieved from the Vogue ItaliaArchive and published between 1964 (Vogue’s first publication in Italy) and 1974 and between 2020 and 2022; and 46 mock covers of fashion simulated magazines created by female undergraduate fashion students during the academic years 2020/2021 and 2021/2022. Through the first corpus we examine the hegemonic discourse of Vogue Italia, assuming that it expresses the typical Italian way of creating and expressing female fashion while reflecting the shifting ideologies of the Italian feminist movement over the last century; the second corpus reveals the imaginations and narratives of young girls on fashion, disclosing how women’s – and girls’ – identities have been shaped over time and how the standards for femininity, beauty, happiness and health have been transferred and reworked from one generation to the next. In our study the parallel investigation between the longitudinal analysis of the visual apparatus Vogue Italiaand the covers produced by students shows, first, elements of continuity and similarity in the communicative and instrumental use of fashion, according to the practice of remixing. Second, it demonstrates that students assimilated successfully the narrative codes typical of traditional fashion communication media but they reinterpret the imagery and representations disseminated, thus bringing into the public discourse issues such as sustainability, gender, diversity, body positivity and stereotypes. Therefore, the study also reveals that girls have always been more than simple passive consumers of fashion magazines and cultural products.
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- 2023
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14. Review of methods and technologies to detect, count and identify people in indoor environments
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Comai, Sara, Stabile, Gabriele Maria, Vavassori, Enrico, Zerilli, Matteo, Masciadri, Andrea, and Salice, Fabio
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The rapid advancement of technology has significantly improved the methods for identifying and counting individuals in indoor environments. This paper presents a systematic review of existing non-intrusive methods and technologies used for indoor detection, counting and identification of people. The review evaluates relevant literature, identifying key technologies that provide accurate detection and practical applications across various domains. The methods are categorized into six groups based on the evaluated parameters: Acoustic-based, Biometric-based, Body Indices-based, Gait-based, Infrared-based, and Smart Device-based. This categorization helps understand each method’s strengths and weaknesses, facilitating future research and development in this field.
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- 2025
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15. Percutaneous cutting balloon angioplasty for the treatment of renovascular hypertension in children and adolescents
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Salice, Patrizia, Mircoli, Luca, Butera, Gianfranco, Burdick, Larry, Borzani, Irene, Mastrangelo, Antonio, Ardissino, Gianluigi, Beretta, Claudio, Ferraresso, Mariano, Ughi, Ludovica, Montini, Giovanni, Carugo, Stefano, and Morganti, Alberto
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- 2022
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16. Su1849 CYTOMEGALOVIRUS COLITIS IN PATIENTS WITH MODERATE-TOSEVERE ULCERATIVE COLITIS: DIAGNOSIS, CLINICAL IMPACT AND TREATMENT EFFICACY.
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Melotti, Laura, Salice, Marco, Rinaldi, Matteo, Dussias, Nikolas K., Vanigli, Nicholas, Scaioli, Eleonora, Hrustemovic, Hana Privitera, Rizzello, Fernando, and Gionchetti, Paolo
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- 2024
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17. 1175 LONG TERM FOLLOW-UP OF PATIENTS WITH ULCERATIVE COLITIS AFTER WITHDRAWL OF INFLIXIMAB FOR DEEP AND STABLE REMISSION.
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Dussias, Nikolas K., Melotti, Laura, Vanigli, Nicholas, Salice, Marco, Calabrese, Carlo, Rizzello, Fernando, and Gionchetti, Paolo
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- 2024
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18. What are emotional mechanisms?
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Salice, Alessandro and Salmela, Mikko
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- 2022
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19. Fluid intake and blood pressure in children: the Salus per Aquam project
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Ardissino, Gianluigi, Perrone, Michela, Ghiglia, Silvia, Salice, Patrizia, Tel, Francesca, Dardi, Elena, Bollani, Tiziana, Mezzopane, Antonella, Capone, Valentina, Ardissino, Maddalena, Vergori, Antonio, Piantanida, Sandra, Di Michele, Silvia, Tchana, Bertrand, Filippucci, Lucia, De Luca, Francesco, Consonni, Dario, and Buzzetti, Roberto
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Supplemental Digital Content is available in the text
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- 2022
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20. UNCONTROLLED DONATION AFTER CIRCULATORY DEATH: A NEW LOCAL PROTOCOL AND A TWO-CASE REPORT.
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MONDIN, Federico, MARCHESE, Giuseppe, LUCCHELLI, Matteo, SALICE, Valentina, LANZILLOTTI, Gabriella, MERLINI, Laura, MISTRALETTI, Giovanni, and FASSINI, Paola
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Uncontrolled Donation after Cardiac Death (uDCD) is a donation path following cardiac arrest (CA) without further indications for resuscitation efforts. This represents a unique opportunity for organ procurement since incidence of brain death is decreasing. Despite its potential, this procedure is limited nowadays due to its logistic and relational complexity and the concern regarding organs' function after long warm ischemia time (WIT)., We developed a local decision protocol to assign patients with CA to three possible different pathways:1) Extracorporeal Cardio-Pulmonary Resuscitation (E-CPR), 2) normothermic regional perfusion (NRP), 3) standard Advanced Life Support (ALS) (Figure 1). Here we present the first two cases of uDCD happened in Legnano, Milan, Italy in January 2023, after the protocol introduction. Two patients, aged 66 and 61, reported witnessed out-of-hospital cardiac arrests (OHCA) but no bystander Cardio-Pulmonary Resuscitation (CPR) was performed. The Emergency Medical System (EMS) started ALS procedures with mechanical CPR (mech-CPR) during transport to the hospital; according to the protocol both patients were deemed ineligible for E-CPR due to the long no flow time. When resuscitation efforts were no longer indicated, clinical conditions, prognosis and all the care performed were reported to the closest relatives. The Italian Transplant Information System (SIT) for Living Will was consulted but no records were found. After that, they were informed about the possibility of organ donation through uDCD protocol and they declared no opposition. Before interruption of mech-CPR small sheath introducers were placed in femoral vessels and full dose heparin was given. According to the Italian law 20 minutes of isoelectric EKG was recorded. After cardiac death declaration, cannulation procedure was performed. Aortic occlusion balloon was inflated to exclude upper circulation and NRP started to recondition abdominal organs. The process of organ retrieval began after 6 and 6.5 hours of NRP, respectively. Figure 2 presents the timeline of the two cases: patients' WIT were 147 and 164 minutes. Overcoming the WIT limits illustrated in the protocol, in these two uDCD cases, the livers were successfully transplanted in both cases, while kidneys in one of them. Despite the difficulties, this simple protocol permits managing and triaging patients undergoing refractory CA in three different pathways (ECPR, uDCD, ALS), depending on CA timing and patient features. Long WIT, known difficulty in uDCD, did not prevent the successful transplanted organs outcome. These results suggest the need for further research about organ WIT, in order to potentially increase organs availability through DCD path. [ABSTRACT FROM AUTHOR]
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- 2023
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21. Sensitization of Nanocrystalline TiO2with Multibranched Organic Dyes and Co(III)/(II) Mediators: Strategies to Improve Charge Collection Efficiency
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Mba, Miriam, D’Acunzo, Marco, Salice, Patrizio, Carofiglio, Tommaso, Maggini, Michele, Caramori, Stefano, Campana, Alessandra, Aliprandi, Alessandro, Argazzi, Roberto, Carli, Stefano, and Bignozzi, Carlo A.
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The photoelectrochemical properties of thiophene-triphenylamine (TTPA) sensitizers (TTPA1–3) used in association with different cobalt based mediators, including kinetically fast shuttles such as [Co(bpy)3]3+/2+and [Co(phen)3]3+/2+and sterically hindered couples like [Co(dtb)3]3+/2+were studied by combining molecular modeling, spectroscopic, and photoelectrochemical techniques. The results indicate that the presence of multiple anchoring points on the dye structure improves its adsorption stability onto TiO2but induces a pseudoplanar adsorption geometry which is not suited to insulate properly the surface of the semiconductor and of the back contact, against electron recombination; particularly when kinetically fast shuttles are employed. This drawback could be successfully countered by exploiting both a compact blocking underlayer and the chemisorption of octyl triethoxysilane (Si–C8) acting as a molecular barrier onto the TiO2surface, thus limiting the access of the oxidized mediator to the exposed titania sites. These treatments improve the electron collection efficiency up to 80–90% with the I–/I3–couple and up to 70% when the [Co(dtb)3]3+/2+mediator was used.
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- 2024
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22. Energetic Electron Precipitation During Slot Region Filling Events
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Nesse, H., Babu, E. M., Salice, J. A., and Funke, B.
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The slot region marks the equatorward boundary of the energetic electron precipitation (EEP). There are, however, numerous reports where energetic electrons cross these boundaries and fill the slot region. The ensuing EEP will occur long after the geomagnetic activity subsides. This is a missing energy input in current EEP estimates scaled by geomagnetic indices. This study explores the occurrence rate, duration, and local time dependence of slot region filling events using observations from the National Oceanic and Atmospheric Administration/Polar Orbiting Environmental Satellites over a full solar cycle from 2004 to 2014. The EEP flux estimates are based on the Medium Energy Proton Electron Detector 0° and 90° detectors and the theory of pitch angle diffusion by wave‐particle interaction. The occurrence rates of >43, >114, and >292 keV events are found to be strongly energy and solar cycle dependent. Higher energy events are more likely to be associated with Coronal Mass Ejections and stronger geomagnetic deflections compared to lower energy events. Solar wind speed, Bz, and Ey reveal a calm period before the events, potentially important for preconditioning the ensuing magnetospheric mass convection. The slot region reforms more efficiently closer to the plasmapause, which creates a double EEP band throughout the recovery period. The slot region EEP maximizes around noon throughout the afternoon/evening sector, consistent with pitch angle scattering from plasmaspheric hiss and lightning induced whistler mode waves. Concurrent with slot region filling events, the Michelson Interferometer for Passive Atmospheric Sounding/Envisat nitric oxide density show an increase at <55° corrected geomagnetic latitudes. This demonstrates the importance of including slot region EEP when assessing the EEP impact on the atmosphere. Electron precipitation from slot region filling events increases mesospheric nitric oxide density at corrected geomagnetic latitudes well below 55°The occurrence rate of >292 keV slot region filling events is about half of the >43 keV slot region filling eventsLocal time precipitation pattern is in line with pitch angle scattering by plasmaspheric hiss and lightning‐generated whistler mode waves Electron precipitation from slot region filling events increases mesospheric nitric oxide density at corrected geomagnetic latitudes well below 55° The occurrence rate of >292 keV slot region filling events is about half of the >43 keV slot region filling events Local time precipitation pattern is in line with pitch angle scattering by plasmaspheric hiss and lightning‐generated whistler mode waves
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- 2023
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23. An Updated Geomagnetic Index‐Based Model for Determining the Latitudinal Extent of Energetic Electron Precipitation
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Babu, E. M., Nesse, H., Hatch, S. M., Olsen, N., Salice, J. A., and Richardson, I. G.
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Energetic Electron Precipitation (EEP) from the Earth's plasma sheet and the radiation belts is an important feature of atmospheric dynamics through their destruction of ozone in the lower thermosphere and mesosphere. Therefore, understanding the magnitude of the atmospheric impact of the Sun‐Earth interaction requires a comprehensive understanding of the intensity and location of EEP. This study improves the accuracy of a previous pressure‐corrected Dst model that predicts the equatorward extent of >43, >114, and >292 keV EEP using the measurements from the Medium Energy Proton Electron Detector detector of six National Oceanic and Atmospheric Administration/Polar Orbiting Environmental Satellites and EUMETSAT/METOP satellites. The improvement is achieved through multiple linear regression of pressure‐corrected Dst and pressure‐corrected Ring Current (RC) indices. The RC index mitigates the baseline variation of the Dst index that created an inherent solar cycle bias in the previous model. The new model is then extended to the Southern Hemisphere (SH) after removing the South Atlantic Anomaly longitudes from the data. More than 80% of the residuals lie within ±1.8° Corrected Geomagnetic Latitude (CGMLat) in the Northern Hemisphere and within ±1.98° CGMLat in the SH. This study aims to construct a model that predicts the geographic extent of Energetic Electron Precipitation (EEP) from the Earth's radiation belts using measurements from the Medium Energy Proton Electron Detector detector of six National Oceanic and Atmospheric Administration/Polar Orbiting Environmental Satellites and EUMETSAT/METOP satellites. The study enhances the accuracy of the previous pressure‐corrected Dst model. This improvement is implemented using multiple linear regression of pressure‐corrected Dst and pressure‐corrected Ring Current (RC) indices. Additionally, the study extends the model to the Southern Hemisphere after removing the South Atlantic Anomaly longitudes from the data. The result resolves the solar cycle bias that existed in the previous study. An updated model of the equatorward extent of >43 keV electron precipitation has been improved by successfully removing the solar cycle biasIncluding both the Dst* and the Ring Current index reduces the error estimate to ±1.8° Corrected Geomagnetic Latitude (CGMLat) over a full solar cycle (2004–2014)The model is extended to the Southern Hemisphere with an error estimate of ±1.98° CGMLat An updated model of the equatorward extent of >43 keV electron precipitation has been improved by successfully removing the solar cycle bias Including both the Dst* and the Ring Current index reduces the error estimate to ±1.8° Corrected Geomagnetic Latitude (CGMLat) over a full solar cycle (2004–2014) The model is extended to the Southern Hemisphere with an error estimate of ±1.98° CGMLat
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- 2023
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24. Exploring the Predictability of the High‐Energy Tail of MEE Precipitation Based on Solar Wind Properties
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Salice, J. A., Nesse, H., Babu, E. M., Smith‐Johnsen, C., and Richardson, I. G.
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Medium Energy Electron (MEE) precipitation (≳30 keV) ionizes the mesosphere and initiates chemical reactions, which ultimately can reduce mesospheric and stratospheric ozone. Currently, there are considerable differences in how existing parameterizations represent flux response, timing, and duration of MEE precipitation, especially considering its high‐energy tail (≳300 keV). This study compares the nature of ≳300 to ≳30 keV electron fluxes to better understand differences within MEE precipitation. The MEE fluxes are estimated from measurements by the Medium Energy Proton and Electron Detector (MEPED) onboard the Polar Orbiting Environmental Satellite (POES) from 2004 to 2014. The fluxes are explored in the context of solar wind drivers: corotating high‐speed solar wind streams (HSSs) and coronal mass ejections (CMEs) alongside their associated solar wind properties. Three key aspects of ≳300 keV electron fluxes are investigated: maximum response, peak timing, and duration. The results reveal a structure‐dependent correlation (0.89) between the peak fluxes of ≳30 and ≳300 keV electrons. The epsilon coupling function correlates well (0.84) with the ≳300 keV peak flux, independent of solar wind structure. The ≳300 keV flux peaks 0–3 days after the ≳30 keV flux peaks. The highest probability (∼42%) occurs for a 1‐day delay, while predictive capabilities increase when accounting for solar wind speed. The ≳300 keV flux response has the highest probability of lasting 4 days for both CMEs and HSSs. The results form a base for a stochastic MEE parameterization that goes beyond the average picture, enabling realistic flux variability on both daily and decadal scales. Electrons with energies >30 keV precipitating into the Earth's atmosphere is known as medium energy electron (MEE) precipitation. Solar wind properties drive the rate and energy of MEE. MEE precipitation is a relevant solar forcing as it produces ozone‐depleting substances. Variations in ozone concentration can modify the atmospheric temperature profile and lead to changes in atmospheric circulation that can map down onto surface climate. The community's capability of parameterizing MEE precipitation is an active field of research. This study aims to build a foundation for an MEE parameterization that represents realistic variability on daily and decadal scales by exploring the variability in the context of different solar wind properties. The study focuses on three key aspects regarding the differences within the energy spectrum of MEE precipitation: maximum response, timing, and duration. The key aspects are evaluated regarding the probability of a specific response. This study looks at an entire solar cycle (11 yr). It is found that solar wind properties, such as solar wind speed, can help determine the probability of a particular MEE response. The results from this paper will be key elements for constructing an MEE precipitation parameterization to be applied in a chemistry‐climate model. The solar wind parameter εbest predicts the peak flux of the >292 keV electron precipitation independent of solar wind structureThe delay in the peak flux of >292 keV electron precipitation relative to that of >43 keV electrons is influenced by solar wind speedOn average, electron precipitation >292 keV persists 2–3 days longer than electron precipitation >43 keV The solar wind parameter εbest predicts the peak flux of the >292 keV electron precipitation independent of solar wind structure The delay in the peak flux of >292 keV electron precipitation relative to that of >43 keV electrons is influenced by solar wind speed On average, electron precipitation >292 keV persists 2–3 days longer than electron precipitation >43 keV
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- 2023
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25. Determining Latitudinal Extent of Energetic Electron Precipitation Using MEPED On‐Board NOAA/POES
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Babu, E. M., Tyssøy, H. Nesse, Smith‐Johnsen, C., Maliniemi, V., Salice, J. A., Millan, R. M., and Richardson, I. G.
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Energetic Electron Precipitation (EEP) from the plasma sheet and the radiation belts ionizes the polar lower thermosphere and mesosphere. EEP increases the production of NOxand HOx, which will catalytically destroy ozone, an important element of atmospheric dynamics. Therefore, measurement of the latitudinal extent of the precipitation boundaries is important in quantifying the atmospheric effects of the Sun‐Earth interaction. This study uses measurements by the Medium Energy Proton Electron Detector (MEPED) of six NOAA/POES and EUMETSAT/METOP satellites from 2004 to 2014 to determine the latitudinal boundaries of EEP and their variability with geomagnetic activity and solar wind drivers. Variation of the boundaries for different electron energies and Magnetic Local Time (MLT) is studied. Regression analyses are applied to determine the best predictor variable based on solar wind parameters and geomagnetic indices. The highest correlation was found for the pressure‐corrected Dst index when applying a linear regression model. A model of the equatorward EEP boundary is developed separately for three different energy channels, >43, >114, and >292 keV, and for 3 hour MLT sectors. For >43 keV EEP, 80% of the equatorward boundaries predicted by the model are within ±2.2° cgmlat. The model exhibits a solar cycle bias where it systematically exaggerates the equatorward movement of the EEP region during solar minimum. The highest accuracy of the model is found in periods dominated by corotating interaction regions/high speed solar wind streams. The result will be a key element for constructing a model of EEP variability to be applied in atmosphere climate models. Charged particles trapped in the Earth's magnetic field get accelerated to high energies through various magnetospheric processes. They can eventually precipitate into the Earth’s atmosphere in a process known as Energetic Electron Precipitation or EEP. EEP deposits energy in the mesosphere and lower thermosphere which increase the production of ozone‐depleting substances. Vertical transport of these, in particular during winter, can lead to indirect destruction of stratospheric ozone, a crucial element of atmospheric dynamics. Therefore, measurement of the latitudinal extent of EEP is important in quantifying the atmospheric effects of the Sun‐Earth interaction. We use measurements from six NOAA/POES and EUMETSAT/METOP satellites from 2004 to 2014 to determine the equatorward latitudinal boundaries of EEP. We investigate how they correlate with solar wind parameters and geomagnetic indices to identify the best predictor for EEP boundaries. The result will be a key element for constructing a model of EEP variability to be applied in atmosphere climate models. A model predicting equatorward extent of >43 keV electron precipitation is developed based on pressure‐corrected DstThe model has an error estimate of ±2.2° cgmlat over a full solar cycle (2004–2014)The model has the highest accuracy during periods dominated by high‐speed solar wind streams A model predicting equatorward extent of >43 keV electron precipitation is developed based on pressure‐corrected Dst The model has an error estimate of ±2.2° cgmlat over a full solar cycle (2004–2014) The model has the highest accuracy during periods dominated by high‐speed solar wind streams
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- 2022
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26. A dataset of seasonal fluctuations of molluscan populations from the southern Gulf of California subtropical arid zone.
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Pérez-Estrada CJ, Rodríguez-Estrella R, Brun-Murillo FG, Morales-Bojórquez E, Gurgo-Salice P, and Valles-Jiménez R
- Abstract
The dataset contains insights into the molluscan diversity associated with seagrass and seasonal dynamics in a subtropical arid zone in the southern Gulf of California. The dataset includes the number of species, taxonomy, seasonal abundance data, trophic composition, biomass of molluscan, and biomass of seagrass ( H. wrightii ). This dataset is referenced in the study titled: "Diversity and seasonal variation of the molluscan community associated with the seagrass Halodule wrightii in a marine protected area in the southern Gulf of California" (Pérez-Estrada et al., 2023) [1]., (© 2024 The Author(s).)
- Published
- 2024
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