27,186 results on '"Rommel AS"'
Search Results
102. Investigation of CMOS Single Process Steps on 4H-SiC a-Plane Wafers for Quantum Applications.
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Jannik H. Schwarberg, Robin Karhu, Birgit Kallinger, Mathias Rommel, Robin Schmidt, and Jörg Schulze
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- 2024
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103. Blockchain. A Technology that Transforms the Supply Chain and Logistics
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Velastegui, Rommel, Poler, Raúl, Madroñero, Manuel Díaz, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Garcia, Marcelo V., editor, Gordón-Gallegos, Carlos, editor, Salazar-Ramírez, Asier, editor, and Nuñez, Carlos, editor
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- 2024
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104. Occupational Risk Factor of Exposure to Biological Agents Using Direct Observation Epidemiological Techniques in a Clinical Laboratory
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Cadena, Johanna Elizabeth Mayanquer, Guerrero, Rommel Fernando Rosero, Serrano, Héctor Leonardo Oña, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Vizuete, Marcelo Zambrano, editor, Tobar, Miguel Botto, editor, Casillas, Sonia, editor, Toro, Miguel Naranjo, editor, Basantes Andrade, Andrea, editor, Carrasco, Francisco Pérez, editor, and Durakovic, Benjamin, editor
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- 2024
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105. Future-Proofing Strategies: Machine Learning Models for Organizational Resilience in Emerging Markets
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Alami, Rachid, Sergio, Rommel, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Alareeni, Bahaaeddin, editor, and Hamdan, Allam, editor
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- 2024
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106. Vocational Teacher Education and Vocational Education Research in Costa Rica—Status Quo and Perspectives
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Rommel, Irina, Goncharova, Anastasia, Frommberger, Dietmar, Frommberger, Dietmar, Series Editor, Gessler, Michael, Series Editor, Pilz, Matthias, Series Editor, Zlatkin-Troitschanskaia, Olga, editor, Bohlinger, Sandra, editor, Olivier, Carla, editor, Toepper, Miriam, editor, Bieß, Anne, editor, Greppmair, Anja-Christina, editor, Nguyen, Hoang Long, editor, and Scheuch, Ianina, editor
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- 2024
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107. Online Counseling Services in the UAE: The Clients and Counselors’ Dimensional Perspectives on Counseling Services
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Moussa, Mohamed Dahi, Tantry, Ansarullah, Gilani, Sayed Abdul Majid, Sergiol, Rommel Pilapil, Gernal, Liza Macasukit, Kabene, Stefane Mostefa, Maclean, Rupert, Series Editor, Rauner, Felix, Associate Editor, Evans, Karen, Associate Editor, McLennon, Sharon M., Associate Editor, Atchoarena, David, Advisory Editor, Benedek, András, Advisory Editor, Benteler, Paul, Advisory Editor, Carton, Michel, Advisory Editor, Chinien, Chris, Advisory Editor, De Moura Castro, Claudio, Advisory Editor, Frearson, Michael, Advisory Editor, Gasperini, Lavinia, Advisory Editor, Grollmann, Philipp, Advisory Editor, Grubb, W. Norton, Advisory Editor, Herschbach, Dennis R., Advisory Editor, Homs, Oriol, Advisory Editor, Kang, Moo-Sub, Advisory Editor, Kerre, Bonaventure W., Advisory Editor, Klein, Günter, Advisory Editor, Kruse, Wilfried, Advisory Editor, Lauglo, Jon, Advisory Editor, Leibovich, Alexander, Advisory Editor, Lerman, Robert, Advisory Editor, Mar, Naing Yee, Advisory Editor, Masri, Munther Wassef, Advisory Editor, McKenzie, Phillip, Advisory Editor, Pavlova, Margarita, Advisory Editor, Raubsaet, Theo, Advisory Editor, Schröder, Thomas, Advisory Editor, Sheehan, Barry, Advisory Editor, Singh, Madhu, Advisory Editor, Tilak, Jandhyala, Advisory Editor, Weinberg, Pedro Daniel, Advisory Editor, Ziderman, Adrian, Advisory Editor, Khamis Hamdan, Reem, editor, Hamdan, Allam, editor, Alareeni, Bahaaeddin, editor, and Khoury, Rim El, editor
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- 2024
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108. Developing a Browser Extension for the Automated Detection of Deceptive Patterns in Cookie Banners
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Adorna, Juris Hannah, Dantis, Aurel Jared, Feria, Rommel, Figueroa, Ligaya Leah, Solamo, Rowena, Li, Kan, Editor-in-Chief, Li, Qingyong, Associate Editor, Fournier-Viger, Philippe, Series Editor, Hong, Wei-Chiang, Series Editor, Liang, Xun, Series Editor, Wang, Long, Series Editor, Xu, Xuesong, Series Editor, Caro, Jaime, editor, Hagihara, Shigeki, editor, Nishizaki, Shin-ya, editor, Numao, Masayuki, editor, and Suarez, Merlin, editor
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- 2024
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109. Adoption of Machine Learning by Rural Farms: A Systematic Review
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Gilani, Sayed Abdul Majid, Tantry, Ansarullah, Askri, Soumaya, Gernal, Liza, Sergio, Rommel, Mataruna-Dos-Santos, Leonardo Jose, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Zakaria, Nur Haryani, editor, Mansor, Nur Suhaili, editor, Husni, Husniza, editor, and Mohammed, Fathey, editor
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- 2024
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110. Human Talent Management to Increase Productivity: Case Study EQUATOROSES EQR
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Velastegui, Rommel, Hidalgo, Giovanni, Mayorga, Maria-Jose, Garcia, Marcelo V., Howlett, Robert J., Series Editor, Jain, Lakhmi C., Series Editor, Reis, José Luís, editor, Del Rio Araujo, Marisa, editor, Reis, Luís Paulo, editor, and dos Santos, José Paulo Marques, editor
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- 2024
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111. Feeding sources of mosquitoes in Galapagos Islands: A potential threat to wildlife conservation
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Culda, Carla Andreea, Panait, Luciana Cătălina, Cazan, Cristina Daniela, Vinueza, Rommel Lenin, Páez-Rosas, Diego, Guerrero Vásquez, Erika, Leon, Renato, and Mihalca, Andrei Daniel
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- 2025
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112. Environmental applications of carbon dots: Addressing microplastics, air and water pollution
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Latiza, Rich Jhon Paul, Olay, Jerry, Eguico, Carlou, Yan, Rommel Jose, and Rubi, Rugi Vicente
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- 2025
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113. The energy level spectrum of the yellow excitons in cuprous oxide
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Heckötter, J., Farenbruch, A., Fröhlich, D., Aßmann, M., Yakovlev, D.R., Bayer, M., Semina, M.A., Glazov, M.M., Rommel, P., Ertl, J., Main, J., and Stolz, H.
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- 2025
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114. Host repair polymorphisms and H. pylori genes in gastric disease outcomes: Who are the guardian and villains?
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Maria de Oliveira Barboza, Morgana, Ferreira da Costa, Reginaldo, Paulo Por Deus Gomes, João, Mário Rodríguez Burbano, Rommel, Goberlânio de Barros Silva, Paulo, and Helena Barem Rabenhorst, Silvia
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- 2025
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115. Impaired control of Mycobacterium tuberculosis infection in mast cell-deficient KitW-sh/W−sh mice
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Villareal-Rivota, Berenice, Meneses-Preza, Yatsiri G., Campillo-Navarro, Marcia, Ruiz-Sánchez, Bibiana Patricia, Soria-Castro, Rodolfo, Barrios-Payán, Jorge, Mata-Espinosa, Dulce, Donis-Maturano, Luis, Pérez-Tapia, Sonia M., Chávez-Blanco, Alma D., Estrada-Parra, Sergio, Hernández-Pando, Rogelio, and Chacón-Salinas, Rommel
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- 2025
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116. Energy and exergy analysis of a two-stage cascade vapor compression refrigeration system with modified system configuration
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Patiluna, Dave Nygeil G., Donasco, Edgar Alan A., Hernandez, Noel M., Mamalias, Junil Bien A., and Viña, Rommel R.
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- 2025
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117. Transcriptome analysis displays new molecular insights into the mechanisms of action of Mebendazole in gastric cancer cells
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da Silva, Emerson Lucena, Mesquita, Felipe Pantoja, Pinto, Laine Celestino, Gomes, Bruna Puty Silva, de Oliveira, Edivaldo Herculano Correa, Burbano, Rommel Mario Rodríguez, Moraes, Maria Elisabete Amaral de, de Souza, Pedro Filho Noronha, and Montenegro, Raquel Carvalho
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- 2025
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118. Role of Female Teachers of Childhood Education in Directing Children towards Effective Use of Smart Devices
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Al-Barakat, Ali Ahmad, Al-Hassan, Omayya M., AlAli, Rommel Mahmoud, Al-Hassan, Mu'aweya Mohammad, and Al sharief, Ramzia Ali
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This study endeavors to investigate the role of female teachers of childhood education in directing children towards the effective use of smart devices in developing their learning experiences. The sample of the study consisted of 83 female teachers in the northern region of Jordan, who were selected using the available sampling method. To achieve the aim of the study, a semi-structured interview was prepared and its validity and consistency were verified. The results shown that childhood education female teachers achieved advanced roles in directing children towards the effective use of smart devices, where effective direction towards the use of smart devices was represented in: directing children to self-organize their learning during using smart devices, directing children to acquire digital social interaction skills and directing them to learn innovation during using smart devices, with the importance of directing them to avoid the harms of using smart devices through preventive guidance. Moreover, the findings of the study revealed the importance of directing children to participate in various digital activities, as well as directing them to learn through digital applications that are purposeful and suitable to their mental capabilities. Based on the research findings, the study presented a number of relevant recommendations.
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- 2023
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119. What are microsatellites and how to choose the best tool: a user-friendly review of SSR and 74 SSR mining tools
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Sandy Ingrid Aguiar Alves, Carlos Willian Dias Dantas, Daralyns Borges Macedo, and Rommel Thiago Jucá Ramos
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microsatellites ,short tandem repeats ,simple sequence repeats ,SSR tools ,molecular markers ,computational tools ,Genetics ,QH426-470 - Abstract
Microsatellites, also known as SSR or STR, are essential molecular markers in genomic research, playing crucial roles in genetic mapping, population genetics, and evolutionary studies. Their applications range from plant breeding to forensics, highlighting their diverse utility across disciplines. Despite their widespread use, traditional methods for SSR analysis are often laborious and time-consuming, requiring significant resources and expertise. To address these challenges, a variety of computational tools for SSR analysis have been developed, offering faster and more efficient alternatives to traditional methods. However, selecting the most appropriate tool can be daunting due to rapid technological advancements and the sheer number of options available. This study presents a comprehensive review and analysis of 74 SSR tools, aiming to provide researchers with a valuable resource for SSR analysis tool selection. The methodology employed includes thorough literature reviews, detailed tool comparisons, and in-depth analyses of tool functionality. By compiling and analyzing these tools, this study not only advances the field of genomic research but also contributes to the broader scientific community by facilitating informed decision-making in the selection of SSR analysis tools. Researchers seeking to understand SSRs and select the most appropriate tools for their projects will benefit from this comprehensive guide. Overall, this study enhances our understanding of SSR analysis tools, paving the way for more efficient and effective SSR research in various fields of study.
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- 2024
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120. EP-069 - TRAGÉDIA EVITÁVEL: DESAFIOS NO MANEJO DE UM CASO DE TÉTANO ACIDENTAL NO INTERIOR DE MINAS GERAIS
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Tiago Mouallem Rennó, Renato Augusto Passos, Silvia Vanessa Villa Campoverde, and Rommel Omar Duche Chulco
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Infectious and parasitic diseases ,RC109-216 ,Microbiology ,QR1-502 - Abstract
Introdução: O tétano acidental é uma doença infecciosa aguda prevenível que está associada à elevada morbi-mortalidade. Objetivo: Descrever as dificuldades enfrentadas no manejo de um paciente com tétano acidental em um hospital de pequeno porte do interior de Minas Gerais. Método: Relato de caso. Esse relato foi feito através da revisão de prontuário eletrônico, após assinatura do TCLE. Resultados: Paciente masculino, 63 anos, natural e procedente de Itajubá-MG, deu entrada em pronto atendimento com história de perfuração em região plantar do pé direito por prego enferrujado há 5 dias. Na admissão, apresentou-se com trismo e nucalgia. Referia nunca ter sido vacinado. Apesar de sinais vitais estáveis foi admitido na UTI, pelo diagnóstico de tétano acidental. Após 4 horas da admissão apresentou crises espasmódicas generalizadas, evoluindo com paralisia diafragmática e parada cardiorrespiratória em assistolia por hipóxia. Após RCP e o retorno à circulação espontânea foi submetido à intubação endotraqueal, recebendo sedoanalgesia com Propofol e Fentanil. A avaliação neurológica demonstrou hipertonia e abalos musculares generalizados, a tomografia de crânio não apresentava alterações. Após 12 horas da admissão, foi administrado soro antitetânico: 20.000 UI EV, vacina antitetânica e metronidazol EV. Decorridas 36 horas após admissão na UTI, foi realizada traqueostomia e desbridamento da ferida com drenagem de abscesso do pé direito. Evoluiu com sintomas de disautonomia, caracterizado por labilidade pressórica e após 15 dias da admissão, começou a apresentar melhora dos espasmos musculares em uso de Diazepam, Midazolam, Fentanil e Rocurônio. Durante a internação, o paciente evoluiu com lesão renal aguda e necessidade de hemodiálise. Além disso, o paciente apresentou diversas Infecções Relacionadas à Assistência à Saúde (IRAS), como pneumonia associada à ventilação mecânica por Acinetobacter baumannii resistente a carbapenêmico e infecção de corrente sanguínea. Após 60 dias de internação na UTI, paciente evoluiu para óbito como consequência de choque séptico refratário. Esse foi o segundo caso de tétano acidental notificado em Itajubá no último ano. Conclusão: Apesar de ser uma doença prevenível, devido à baixa cobertura vacinal, novos casos de tétano acidental têm sido notificados na cidade de Itajubá. A escassez de recursos e a falta de capacitação da equipe de saúde dificulta o manejo dessa condição nas áreas mais remotas do país.
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- 2024
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121. Transparency and precision in the age of AI: evaluation of explainability-enhanced recommendation systems
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Jaime Govea, Rommel Gutierrez, and William Villegas-Ch
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recommendation systems ,explainability in AI ,transparency and trust in AI ,machine learning ,artificial intelligence ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
In today’s information age, recommender systems have become an essential tool to filter and personalize the massive data flow to users. However, these systems’ increasing complexity and opaque nature have raised concerns about transparency and user trust. Lack of explainability in recommendations can lead to ill-informed decisions and decreased confidence in these advanced systems. Our study addresses this problem by integrating explainability techniques into recommendation systems to improve both the precision of the recommendations and their transparency. We implemented and evaluated recommendation models on the MovieLens and Amazon datasets, applying explainability methods like LIME and SHAP to disentangle the model decisions. The results indicated significant improvements in the precision of the recommendations, with a notable increase in the user’s ability to understand and trust the suggestions provided by the system. For example, we saw a 3% increase in recommendation precision when incorporating these explainability techniques, demonstrating their added value in performance and improving the user experience.
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- 2024
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122. Prevention of congenital chagas disease by trypanocide treatment in women of reproductive age: A meta-analysis of observational studies.
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Francisco Cezar Aquino de Moraes, Maria Eduarda Cavalcanti Souza, Lucca Dal Moro, Isabelle Batista Donadon, Emanuele Rocha da Silva, Dilma do Socorro Moraes de Souza, and Rommel Mario Rodríguez Burbano
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Arctic medicine. Tropical medicine ,RC955-962 ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundMaternal-foetal transmission of Chagas disease (CD) affects newborns worldwide. Although Benznidazole and Nifurtimox therapies are the standard treatments, their use during pregnancy is contra-indicated. The effectiveness of trypanocidal medications in preventing congenital Chagas Disease (cCD) in the offsprings of women diagnosed with CD was highly suggested by other studies.MethodsWe performed a systematic review and meta-analysis of studies evaluating the effectiveness of treatment for CD in women of childbearing age and reporting frequencies of cCD in their children. PubMed, Scopus, Web of Science, Cochrane Library, and LILACS databases were systematically searched. Statistical analysis was performed using Rstudio 4.2 using DerSimonian and Laird random-effects models. Heterogeneity was examined with the Cochran Q test and I2 statistics. A p-value of ResultsSix studies were included, comprising 744 children, of whom 286 (38.4%) were born from women previously treated with Benznidazole or Nifurtimox, trypanocidal agents. The primary outcome of the proportion of children who were seropositive for cCD, confirmed by serology, was signigicantly lower among women who were previously treated with no congenital transmission registered (OR 0.05; 95% Cl 0.01-0.27; p = 0.000432; I2 = 0%). In women previously treated with trypanocidal drugs, the pooled prevalence of cCD was 0.0% (95% Cl 0-0.91%; I2 = 0%), our meta-analysis confirms the excellent effectiveness of this treatment. The prevalence of adverse events in women previously treated with antitrypanocidal therapies was 14.01% (95% CI 1.87-26.14%; I2 = 80%), Benznidazole had a higher incidence of side effects than Nifurtimox (76% vs 24%).ConclusionThe use of trypanocidal therapy in women at reproductive age with CD is an effective strategy for the prevention of cCD, with a complete elimination of congenital transmission of Trypanosoma cruzi in treated vs untreated infected women.
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- 2024
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123. Transmon qubit readout fidelity at the threshold for quantum error correction without a quantum-limited amplifier
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Chen, Liangyu, Li, Hang-Xi, Lu, Yong, Warren, Christopher W., Križan, Christian J., Kosen, Sandoko, Rommel, Marcus, Ahmed, Shahnawaz, Osman, Amr, Biznárová, Janka, Roudsari, Anita Fadavi, Lienhard, Benjamin, Caputo, Marco, Grigoras, Kestutis, Grönberg, Leif, Govenius, Joonas, Kockum, Anton Frisk, Delsing, Per, Bylander, Jonas, and Tancredi, Giovanna
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Quantum Physics - Abstract
High-fidelity and rapid readout of a qubit state is key to quantum computing and communication, and it is a prerequisite for quantum error correction. We present a readout scheme for superconducting qubits that combines two microwave techniques: applying a shelving technique to the qubit that effectively increases the energy-relaxation time, and a two-tone excitation of the readout resonator to distinguish among qubit populations in higher energy levels. Using a machine-learning algorithm to post-process the two-tone measurement results further improves the qubit-state assignment fidelity. We perform single-shot frequency-multiplexed qubit readout, with a 140ns readout time, and demonstrate 99.5% assignment fidelity for two-state readout and 96.9% for three-state readout - without using a quantum-limited amplifier.
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- 2022
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124. Signatures of exciton orbits in quantum mechanical recurrence spectra of Cu$_2$O
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Ertl, Jan, Marquardt, Michael, Schumacher, Moritz, Rommel, Patric, Main, Jörg, and Bayer, Manfred
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Condensed Matter - Mesoscale and Nanoscale Physics ,Condensed Matter - Materials Science ,Nonlinear Sciences - Chaotic Dynamics ,Quantum Physics - Abstract
The seminal work by T. Kazimierczuk et al. [Nature 514, 343 (2014)] has shown the existence of highly excited exciton states in a regime, where the correspondence principle is applicable and quantum mechanics turns into classical mechanics, however, any interpretation of exciton spectra based on a classical approach to excitons is still missing. Here, we close this gap by computing and comparing quantum mechanical and semiclassical recurrence spectra of cuprous oxide. We show that the quantum mechanical recurrence spectra exhibit peaks, which, by application of semiclassical theories and a scaling transformation, can be directly related to classical periodic exciton orbits. The application of semiclassical theories to exciton physics requires the detailed analysis of the classical exciton dynamics, including three-dimensional orbits, which strongly deviate from hydrogenlike Keplerian orbits. Our findings illuminate important aspects of excitons in semiconductors by directly relating the quantum mechanical band-structure splittings of excitons to the corresponding classical exciton dynamics., Comment: Article 6 pages, 3 figures and Supplemental material 7 pages, 2 figures. Accepted for publication in Physical Review Letters; Incomplete labeling in Figs. 2 and 3 corrected
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- 2022
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125. Data augmentation for learning predictive models on EEG: a systematic comparison
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Rommel, Cédric, Paillard, Joseph, Moreau, Thomas, and Gramfort, Alexandre
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Computer Science - Machine Learning ,Computer Science - Artificial Intelligence ,Electrical Engineering and Systems Science - Signal Processing - Abstract
Objective: The use of deep learning for electroencephalography (EEG) classification tasks has been rapidly growing in the last years, yet its application has been limited by the relatively small size of EEG datasets. Data augmentation, which consists in artificially increasing the size of the dataset during training, can be employed to alleviate this problem. While a few augmentation transformations for EEG data have been proposed in the literature, their positive impact on performance is often evaluated on a single dataset and compared to one or two competing augmentation methods. This work proposes to better validate the existing data augmentation approaches through a unified and exhaustive analysis. Approach: We compare quantitatively 13 different augmentations with two different predictive tasks, datasets and models, using three different types of experiments. Main results: We demonstrate that employing the adequate data augmentations can bring up to 45% accuracy improvements in low data regimes compared to the same model trained without any augmentation. Our experiments also show that there is no single best augmentation strategy, as the good augmentations differ on each task. Significance: Our results highlight the best data augmentations to consider for sleep stage classification and motor imagery brain-computer interfaces. More broadly, it demonstrates that EEG classification tasks benefit from adequate data augmentation, Comment: Accepted in Journal of Neural Engineering
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- 2022
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126. Occultation Portal: a web-based platform for data collection and analysis of stellar occultations
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Kilic, Y., Braga-Ribas, F., Kaplan, M., Erece, O., Souami, D., Dindar, M., Desmars, J., Sicardy, B., Morgado, B. E., Shameoni, M. N., Rommel, F. L., and Gomes-Júnior, A. R.
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Earth and Planetary Astrophysics ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
Recording a stellar occultation is one powerful method that gives direct information about the physical properties of the occulting solar system object. In order to obtain reliable and accurate results, simultaneous observations from different locations across-track of the projected path are of great importance. However, organising all the observing stations, aggregating, and analysing the data is time-consuming and not that easy. We have developed a web portal named Occultation Portal (OP) to manage all those occultation observation campaigns from a central server. With this portal, the instrumental and observational information of all observers participating in a stellar occultation campaign and the concerned data are archived systematically in a standard format. The researchers can then visualise the archived data on an event basis. The investigators can also extract the light curve for each data-set with the added reduction pipeline to the portal base. This paper describes in detail the portal structure and the developed features., Comment: 13 pages, 12 figures, 1 table, and 1 listing, accepted for publication in MNRAS
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- 2022
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127. DSCAM is differentially patterned along the optic axon pathway in the developing Xenopus visual system and guides axon termination at the target
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Santos, Rommel Andrew, Del Rio, Rodrigo, Alvarez, Alexander Delfin, Romero, Gabriela, Vo, Brandon Zarate, and Cohen-Cory, Susana
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Biomedical and Clinical Sciences ,Ophthalmology and Optometry ,Neurosciences ,Eye Disease and Disorders of Vision ,1.1 Normal biological development and functioning ,Underpinning research ,Neurological ,Eye ,Animals ,Axons ,Cell Adhesion Molecules ,Retina ,Superior Colliculi ,Visual Pathways ,Xenopus Proteins ,Xenopus laevis ,DSCAM ,In vivo imaging ,Optic nerve ,Retinal ganglion cell ,Axon targeting ,Optic tectum ,Biological Sciences ,Medical and Health Sciences ,Developmental Biology ,Biological sciences ,Biomedical and clinical sciences ,Psychology - Abstract
The Xenopus retinotectal circuit is organized topographically, where the dorsal-ventral axis of the retina maps respectively on to the ventral-dorsal axis of the tectum; axons from the nasal-temporal axis of the retina project respectively to the caudal-rostral axis of the tectum. Studies throughout the last two decades have shown that mechanisms involving molecular recognition of proper termination domains are at work guiding topographic organization. Such studies have shown that graded distribution of molecular cues is important for topographic mapping. However, the complement of molecular cues organizing topography along the developing optic nerve, and as retinal axons cross the chiasm and navigate towards and innervate their target in the tectum, remains unknown. Down syndrome cell adhesion molecule (DSCAM) has been characterized as a key molecule in axon guidance, making it a strong candidate involved in the topographic organization of retinal fibers along the optic path and at their target. Using a combination of whole-brain clearing and immunohistochemistry staining techniques we characterized DSCAM expression and the projection of ventral and dorsal retinal fibers starting from the eye, following to the optic nerve and chiasm, and into the terminal target in the optic tectum in Xenopus laevis tadpoles. We then assessed the effects of DSCAM on the establishment of retinotopic maps through spatially and temporally targeted DSCAM knockdown on retinal ganglion cells (RGCs) with axons innervating the optic tectum. Highest expression of DSCAM was localized to the ventral posterior region of the optic nerve and chiasm; this expression pattern coincides with ventral fibers derived from ventral RGCs. Targeted downregulation of DSCAM expression on ventral RGCs affected the segregation of medial axon fibers from their dorsal counterparts within the tectal neuropil, indicating that DSCAM plays a role in retinotopic organization. These findings together with previous studies demonstrating cell-autonomous roles for DSCAM during the development of pre- and postsynaptic arbors in the Xenopus retinotectal circuit indicates that DSCAM exerts multiple roles in coordinating axon targeting and structural connectivity in the developing vertebrate visual system.
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- 2022
128. Structural insight into rabies virus neutralization revealed by an engineered antibody scaffold
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Kedari, Ashwini, Iheozor-Ejiofor, Rommel, Salminen, Petja, Uğurlu, Hasan, Mäkelä, Anna R., Levanov, Lev, Vapalahti, Olli, Hytönen, Vesa P., Saksela, Kalle, and Rissanen, Ilona
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- 2024
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129. Time and memory: the experience of temporality as the horizon of understanding of being in Heidegger's readings of Saint Augustine/ Tempo e memoria: a vivencia da temporalidade como horizonte de compreensao do ser em Heidegger leitor de Santo Agostinho
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Braga, Arnin Rommel Pinheiro
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- 2023
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130. Revolutionising industrial operations: The synergy of multiagent robotic systems and blockchain technology in operations planning and control
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Velastegui, Rommel, Poler, Raúl, and Díaz-Madroñero, Manuel
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- 2025
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131. Droop control in grid-forming converters using a fractional-order PI controller: A power system transient analysis
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Chiza, Luis L., Benítez, Diego, Aguilar, Rommel, and Camacho, Oscar
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- 2025
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132. Analítica web y métricas de resultados: evaluación de la efectividad de las estrategias digitales
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Rommel Philip Chunir-Panjon, Edwin Joselito Vásquez-Erazo, and Juan Edmundo Álvarez-Gavilanes
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estrategias de comunicación ,marketing ,comportamiento ,medios sociales ,turismo ,Social Sciences ,Social sciences (General) ,H1-99 - Abstract
La analítica web implica aplicar análisis de datos a la información recopilada por un sitio web para comprender los patrones de tráfico y el comportamiento de los usuarios. La evaluación de la analítica web en el sector turístico de Cuenca, Ecuador, buscó mejorar las estrategias digitales mediante un enfoque mixto cualitativo-cuantitativo. Se observó una correlación entre la edad y la frecuencia de consulta de estadísticas en sitios web turísticos, con mayor participación de personas jóvenes. Además, se destacó un interés significativo en recibir recomendaciones personalizadas, con cerca del 40 % expresando interés definitivo. La disposición para proporcionar retroalimentación y participar en la mejora de servicios en línea fue generalizada. Internet se posicionó como la principal fuente de información turística, con un énfasis en el uso de redes sociales. Estos hallazgos resaltan la importancia de las estrategias de marketing digital y la optimización para dispositivos móviles en la industria turística.
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- 2024
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133. ENHANCING 21ST CENTURY SKILLS THROUGH INTEGRATED STEM EDUCATION USING PROJECT-ORIENTED PROBLEM-BASED LEARNING
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Rommel AlAli
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stem education ,project-oriented problem-based learning ,21st-century skills ,literacy in the digital age ,high productivity ,Geography. Anthropology. Recreation ,Geography (General) ,G1-922 - Abstract
In the pursuit of comprehensive education, the symbiotic relationship between 21st-century skills and STEM is crucial. These two domains work hand in hand to equip students with the knowledge and abilities required to thrive as productive and technically literate citizens in the future. This study assessed the impact of an integrated STEM education program on students' 21st-century skills using Project-Oriented Problem-Based Learning (PoPBL) as the core pedagogical approach. A onegroup quasi-experimental design and survey methodology were employed to evaluate students' skills before and after participating in the program. The findings showed a significant increase in students' overall 21st-century skills, with high productivity skills notably improving from moderate to high proficiency. These results provide compelling evidence that PoPBL in STEM education effectively enhances students' skills by immersing them in authentic, real-life problem-solving experiences through project work. The study emphasizes the value of integrating PoPBL into STEM education to enhance critical skills such as problemsolving, creative thinking, collaboration, and effective communication. By engaging in practical, project-based activities, students not only apply their knowledge but also develop competencies to address complex challenges in their future endeavors.
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- 2024
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134. Silicio como Bioestimulante en el Cultivo de Cacao (Theobroma cacao L.) y Agente de Control Biológico de Moniliophthora roreri
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Juan Antonio Torres-Rodríguez, Rommel Arturo Ramos-Remache, Juan José Reyes-Pérez, Eduardo Fabián Quinatoa-Lozada, and Tomás Rivas-García
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eficiencia tratamiento ,incidencia enfermedad ,rendimiento ,severidad enfermedad ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
El cultivo del cacao es muy susceptible a deficiencias nutrimentales y a la moniliasis ocasionada por el fitopatógeno Moniliophthora roreri. Una de las alternativas a los productos químicos sintéticos son los compuestos a base de silicio (Si). En la presente investigación se evaluó el efecto del silicio como bioestimulante en el cultivo de cacao y agente de control biológico de M. roreri. En el experimento se utilizaron cincos tratamientos de Si: T1 (4.00 kg ha-1), T2 (3.00 kg ha-1), T3 (2.00 kg ha-1) y T4 (1.5 kg ha-1) y un tratamiento control (sin aplicación). Se determinaron los indicadores de producción, número de mazorca, peso fresco y seco de almendras, peso seco de 100 almendras y el rendimiento del cultivo. Además, de la incidencia y severidad de la enfermedad a los 60, 120 y 180 días después de la aplicación del Si y la eficiencia de los tratamientos. Los resultados significativamente superiores para las variables: Producción, número mazorca, peso fresco y seco de almendra y peso seco de 100 almendra, se obtuvieron mediante la aplicación de 4 kg ha-1 de Si, todas las dosis de Si superaron al control (P ≤ 0.05) en las variables relacionas a la producción. En el control del fitopatógeno (M. roreri), la dosis de 4 kg ha-1 Si disminuyó la incidencia y la severidad de la enfermedad en más del 50%. La aplicación de Si puede ser una opción en el cultivo de cacao como bioestimulante y agente de control biológico de M. roreri.
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- 2024
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135. Universality versus variation in the conceptualization of anger: A question of methodology
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Zoltán Kövecses, Réka Benczes, Anna Rommel, and Veronika Szelid
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anger metaphors ,universality ,variation ,american english ,hungarian ,russian ,Philology. Linguistics ,P1-1091 - Abstract
Cognitive linguistic investigations into the metaphorical conceptualization of anger suggest that languages are remarkably similar on a schematic level, with intensity and control as two, possibly universal dimensions underlying the metaphorical conceptualization of anger. These dimensions, however, can manifest themselves in language-specific metaphors. Yet arriving at a definitive answer to the question of universality versus variation is hindered by (a) a relatively limited number of systematic, contrastive analyses; and (b) varied methodologies, with some papers adopting a type-based account, while others following a token-based analysis. We take up both challenges in the present paper with the aim of offering a more definitive answer to the question of the universality and variation of anger metaphors. We investigate the anger metaphors of a type-based analysis, focusing on dictionary data of anger-related idioms, and a token-based analysis, focusing on data collected from online corpora, in three languages: (American) English (2,000 random instances of the lemma anger from the Corpus of Contemporary American English), Hungarian (1,000 instances of the lemma düh from the Hungarian National Corpus) and Russian (1,000 instances of the lemma gnev from the Russian National Corpus). The lexical data were analyzed with the well-established Metaphor Identification Procedure (MIP). Our results indicate that there is a great deal of congruence relative to shared metaphors in both approaches, but this derives from specific-level metaphors in the lexical approach, whereas it derives from more schematic, generic-level metaphors in the corpus-based approach. The study shows that the full picture of the metaphorical conceptualization of a complex emotion concept such as anger can only emerge with the combination of the type- and token-based approach.
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- 2024
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136. Hanke–Raus rule for Landweber iteration in Banach spaces
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Real, Rommel R.
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- 2024
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137. Experimental evaluation of corrosion inhibitors for completion fluids in the petroleum production systems
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Retnanto, Albertus, Yrac, Rommel, Shaikh, Afsha, Alagha, Rand, Alsulaiti, Fay, and Chagouri, Tariq
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- 2024
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138. Physical properties of the trans-Neptunian object (38628) Huya from a multi-chord stellar occultation
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Santos-Sanz, P., Ortiz, J. L., Sicardy, B., Popescu, M., Benedetti-Rossi, G., Morales, N., Vara-Lubiano, M., Camargo, J. I. B., Pereira, C. L., Rommel, F. L., Assafin, M., Desmars, J., Braga-Ribas, F., Duffard, R., Oliveira, J. Marques, Vieira-Martins, R., Fernández-Valenzuela, E., Morgado, B. E., Acar, M., Anghel, S., Atalay, E., Ateş, A., Bakış, H., Bakış, V., Eker, Z., Erece, O., Kaspi, S., Kayhan, C., Kilic, S. E., Kilic, Y., Manulis, I., Nedelcu, D. A., Niaei, M. S., Nir, G., Ofek, E., Ozisik, T., Petrescu, E., Satir, O., Solmaz, A., Sonka, A., Tekes, M., Unsalan, O., Yesilyaprak, C., Anghel, R., Berteşteanu, D., Curelaru, L., Danescu, C., Dumitrescu, V., Gherase, R., Hudin, L., Stoian, A-M., Tercu, J. O., Truta, R., Turcu, V., Vantdevara, C., Belskaya, I., Dementiev, T. O., Gazeas, K., Karampotsiou, S., Kashuba, V., Kiss, Cs., Koshkin, N., Kozhukhov, O. M., Krugly, Y., Lecacheux, J., Pal, A., Püsküllü, Ç., Szakats, R., Zhukov, V., Bamberger, D., Mondon, B., Perelló, C., Pratt, A., Schnabel, C., Selva, A., Teng, J. P., Tigani, K., Tsamis, V., Weber, C., Wells, G., Kalkan, S., Kudak, V., Marciniak, A., Ogloza, W., Ozdemir, T., Pakstiene, E., Perig, V., and Zejmo, M.
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Astrophysics - Earth and Planetary Astrophysics ,Astrophysics - Solar and Stellar Astrophysics - Abstract
Within our international program to obtain accurate physical properties of trans-Neptunian objects (TNOs) we predicted a stellar occultation by the TNO (38628) Huya of the star Gaia DR2 4352760586390566400 (mG = 11.5 mag.) for March 18, 2019. After an extensive observational campaign, we updated the prediction and it turned out to be favorable to central Europe. Therefore, we mobilized half a hundred professional and amateur astronomers, and the occultation was finally detected from 21 telescopes located at 18 sites. This makes the Huya event one of the best ever observed stellar occultation by a TNO in terms of the number of chords. We determine accurate size, shape, and geometric albedo, and we also provide constraints on the density and other internal properties of this TNO. The 21 positive detections of the occultation by Huya allowed us to obtain well-separated chords which permitted us to fit an ellipse for the limb of the body at the moment of the occultation (i.e., the instantaneous limb) with kilometric accuracy. The projected semi-major and minor axes of the best ellipse fit obtained using the occultation data are (a', b') = (217.6 $\pm$ 3.5 km, 194.1 $\pm$ 6.1 km) with a position angle of the minor axis P' = 55.2 $\pm$ 9.1 degrees. From this fit, the projected area-equivalent diameter is 411.0 $\pm$ 7.3 km. This diameter is compatible with the equivalent diameter for Huya obtained from radiometric techniques (D = 406 $\pm$ 16 km). From this instantaneous limb, we obtained the geometric albedo for Huya (p$\rm_V$ = 0.079 $\pm$ 0.004) and we explored possible 3D shapes and constraints to the mass density for this TNO. We did not detect the satellite of Huya through this occultation, but the presence of rings or debris around Huya is constrained using the occultation data. We also derived an upper limit for a putative Pluto-like global atmosphere of about p$_{\rm surf}$ = 10 nbar., Comment: Accepted for publication in Astronomy & Astrophysics (30-April-2022). 19 pages, 7 figures
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- 2022
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139. The multichord stellar occultation on 2019 October 22 by the trans-Neptunian object (84922) 2003 VS$_2$
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Vara-Lubiano, M., Benedetti-Rossi, G., Santos-Sanz, P., Ortiz, J. L., Sicardy, B., Popescu, M., Morales, N., Rommel, F. L., Morgado, B., Pereira, C. L., Álvarez-Candal, A., Fernández-Valenzuela, E., Souami, D., Ilic, D., Vince, O., Bachev, R., Semkov, E., Nedelcu, D. A., Şonka, A., Hudin, L., Boaca, M., Inceu, V., Curelaru, L., Gherase, R., Turcu, V., Moldovan, D., Mircea, L., Predatu, M., Teodorescu, M., Stoian, L., Juravle, A., Braga-Ribas, F., Desmars, J., Duffard, R., Lecacheux, J., Camargo, J. I. B., Assafin, M., Vieira-Martins, R., Pribulla, T., Husárik, M., Sivanič, P., Pal, A., Szakats, R., Kiss, C., Alonso-Santiago, J., Frasca, A., Szabó, G. M., Derekas, A., Szigeti, L., Drozdz, M., Ogloza, W., Skvaruc, J., Ciabattari, F., Delincak, P., Di Marcantonio, P., Iafrate, G., Coretti, I., Baldini, V., Baruffetti, P., Klös, O., Dumitrescu, V., Mikuž, H., and Mohar, A.
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Astrophysics - Earth and Planetary Astrophysics ,Astrophysics - Solar and Stellar Astrophysics - Abstract
We predicted, observed, and analyzed the multichord stellar occultation of the Second Gaia Data Release (Gaia DR2) source 3449076721168026624 (m$_v$ = 14.1 mag) by the plutino object 2003 VS$_2$ (hereafter, VS$_2$) on 2019 October 22. We also carried out photometric observations to derive the rotational light curve amplitude and rotational phase of VS$_2$ during the stellar occultation. Combining the results and assuming a triaxial shape, we derived the 3D shape of VS$_2$. Out of the 39 observatories involved in the observational campaign, 12 sites reported a positive detection; this makes it one of the best observed stellar occultations by a TNO so far. We obtained a rotational light curve amplitude of ${\Delta}$m = 0.264 $\pm$ 0.017 mag, a mean area-equivalent diameter of D$_{A_{eq}}$ = 545 $\pm$ 13 km, and a geometric albedo of 0.134 $\pm$ 0.010. The best triaxial shape obtained for VS$_2$ has semiaxes a = 339 $\pm$ 5 km, b = 235 $\pm$ 6 km, and c = 226 $\pm$ 8 km. The derived aspect angle is ${\theta}$ = 59${\deg} \pm$ 2${\deg}$ or its supplementary ${\theta}$ = 121${\deg} \pm$ 2${\deg}$, depending on the north-pole position. The spherical-volume equivalent diameter is D$_{V_{eq}}$ = 524 $\pm$ 7 km. If we consider large albedo patches on its surface, the semi-major axis of the ellipsoid could be ~10 km smaller. These results are compatible with the previous ones determined from the single-chord 2013 and four-chord 2014 stellar occultations and with the effective diameter and albedo derived from Herschel and Spitzer data. They provide evidence that VS$_2$'s 3D shape is not compatible with a homogeneous triaxial body in hydrostatic equilibrium, but it might be a differentiated body and/or might be sustaining some stress. No secondary features related to rings or material orbiting around VS$_2$ were detected.
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- 2022
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140. Oral follicular lymphoma: a clinicopathologic and molecular study
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Souza, Lucas Lacerda de, Cáceres, Cinthia Veronica Bardález López de, Sant’Ana, Maria Sissa Pereira, Penafort, Paulo Victor Mendes, Andrade, Bruno Augusto Benevenuto de, Pontes, Hélder Antônio Rebelo, Castro, Wagner Henriques de, Mesquita, Ricardo Alves, Xavier-Júnior, José Cândido Caldeira, Santos-Silva, Alan Roger, Lopes, Márcio Ajudarte, Soares, Ciro Dantas, Robinson, Liam, van Heerden, Willie F. P., Burbano, Rommel Mario Rodríguez, Assis-Mendonça, Guilherme Rossi, Vassallo, José, Sousa, Silvia Ferreira de, Vargas, Pablo Agustin, and Fonseca, Felipe Paiva
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- 2023
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141. Ruthenium(II) Complex with 1-Hydroxy-9,10-Anthraquinone Inhibits Cell Cycle Progression at G0/G1 and Induces Apoptosis in Melanoma Cells
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Júlia S. M. Dias, Guilherme A. Ferreira-Silva, Rommel B. Viana, João H. de Araujo Neto, Javier Ellena, Rodrigo S. Corrêa, Marília I. F. Barbosa, Marisa Ionta, and Antônio C. Doriguetto
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1-hydroxy-9,10-anthraquinone ,ruthenium complexes ,melanoma ,antiproliferative activity ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
Background: Melanoma is the most aggressive and lethal skin cancer that affects thousands of people worldwide. Ruthenium complexes have shown promising results as cancer chemotherapeutics, offering several advantages over platinum drugs, such as potent efficacy, low toxicity, and less drug resistance. Additionally, anthraquinone derivatives have broad therapeutic applications, including melanoma. Objectives: Thus, two new ruthenium complexes with 1-hydroxy-9,10-anthraquinone were obtained: trans-[Ru(HQ)(PPh3)2(bipy)]PF6 (1) and cis-[RuCl2(HQ)(dppb)] (2), where HQ = 1-hydroxy-9,10-anthraquinone, PPh3 = triphenylphospine, bipy = 2,2′-bipyridine, PF6 = hexafluorophosphate, and dppb = 1,4-bis(diphenylphosphine)butane. Methods: The complexes were characterized by infrared (IR), UV–vis, 1H, 13C{1H}, and 31P{1H} NMR spectroscopies, molar conductivity, cyclic voltammetry, and elemental analysis. Furthermore, density functional theory (DFT) calculations were performed. Results: Compound (2) was determined by single-crystal X-ray diffraction, which confirms the bidentate coordination mode of HQ through the carbonyl and phenolate oxygens. Additionally, DNA-binding experiments yielded constants of 105 M−1 (Kb = 6.93 × 105 for (1) and 1.60 × 105 for (2)) and demonstrate that both complexes can interact with DNA through intercalation, electrostatic attraction, or hydrogen bonding. Conclusions: The cytotoxicity profiles of the compounds were evaluated in human melanoma cell lines (SK-MEL-147, CHL-1, and WM1366), revealing greater cytotoxic activity for (1) on the CHL-1 cell line with an IC50 of 14.50 ± 1.09 µM. Subsequent studies showed that (1) inhibits the proliferation of CHL-1 cells and induces apoptosis, associated at least in part with the pro-oxidant effect and cell cycle arrest at the G1/S transition.
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- 2025
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142. Abstract 4138633: Infusion of human apolipoprotein A-I (CSL112) promotes several aspects of reverse cholesterol transport
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Mathias, Rommel, Velkoska, Elena, Diditchenko, Svetlana, Greene, Brandon, Tan, Xiahui, Navdaev, Alexey, Collins, Heidi, Adelman, Steven, Young, Kyal, Gille, Andreas, Duffy, Danielle, Gibson, C. Michael, Pelzing, Matthias, and Kingwell, Bronwyn
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- 2024
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143. The Architectural Layout and Degree of Preservation of the Sanctuary of Pachacamac Archaeological Complex (2nd to 16th Centuries AD, Peru) from the Morphometric Analysis of Orthophotogrammetric Data
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Luigi Magnini, Pierdomenico Del Gaudio, Maria Ilaria Pannaccione Apa, Denise Pozzi-Escot, Janet Oshiro, Rommel Angeles, and Guido Ventura
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archaeological heritage ,morphometry ,architectural layout ,orthophotogrammetry ,degree of preservation ,walls ,Science - Abstract
Archaeological complexes are characterized by different degrees of damage related to both natural events and anthropogenic triggers. The damage may be assessed through direct observation or remotely acquired data. Here, we present a morphometric analysis of a digital surface model (DSM) obtained from an orthophotogrammetric survey at the Sanctuary of Pachacamac Archaeological Complex, Peru (2nd to 16th centuries AD), which includes temples, enclosures, huacas, and roads. We determine different morphometric parameters to quantitatively describe the architectural layout of the site. These are aspect, slope, range, and topographic position index (TPI). We applied a modified TPI classification to measure the different degrees of preservation of the walls of the archaeological structures and recognize preserved, partly preserved, partly destroyed, and destroyed walls. The walls of the site show different degrees of preservation related to the damage associated with earthquakes and El Niño destructive events. The architectural layout of the archaeological site is defined by NW-SE and NE-SW striking walls. This is due to buildings constructed along the two main NW-SE and NE-SW striking roads of the Qhapac–Ñan road network. The prevailing El Niño wind direction may also explain the observed architectural layout. Morphometric parameters can be used to estimate the degree of conservation of archaeological sites. Our analytical approach can be applied to modern buildings damaged by natural events or human activities.
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- 2024
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144. Polygenic association between attention-deficit/hyperactivity disorder liability and cognitive impairments
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Vainieri, Isabella, Martin, Joanna, Rommel, Anna-Sophie, Asherson, Philip, Banaschewski, Tobias, Buitelaar, Jan, Cormand, Bru, Crosbie, Jennifer, Faraone, Stephen V, Franke, Barbara, Loo, Sandra K, Miranda, Ana, Manor, Iris, Oades, Robert D, Purves, Kirstin L, Ramos-Quiroga, J Antoni, Ribasés, Marta, Roeyers, Herbert, Rothenberger, Aribert, Schachar, Russell, Sergeant, Joseph, Steinhausen, Hans-Christoph, Vuijk, Pieter J, Doyle, Alysa E, and Kuntsi, Jonna
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Attention Deficit Hyperactivity Disorder (ADHD) ,Genetics ,Prevention ,Human Genome ,Mental Health ,2.1 Biological and endogenous factors ,Aetiology ,Adolescent ,Adult ,Child ,Humans ,Young Adult ,Attention Deficit Disorder with Hyperactivity ,Cognitive Dysfunction ,Genome-Wide Association Study ,Phenotype ,Reaction Time ,Case-Control Studies ,ADHD ,attention ,cognition ,inhibition ,polygenic risk scores ,reaction time variability ,Neurosciences ,Public Health and Health Services ,Psychology ,Psychiatry - Abstract
BackgroundA recent genome-wide association study (GWAS) identified 12 independent loci significantly associated with attention-deficit/hyperactivity disorder (ADHD). Polygenic risk scores (PRS), derived from the GWAS, can be used to assess genetic overlap between ADHD and other traits. Using ADHD samples from several international sites, we derived PRS for ADHD from the recent GWAS to test whether genetic variants that contribute to ADHD also influence two cognitive functions that show strong association with ADHD: attention regulation and response inhibition, captured by reaction time variability (RTV) and commission errors (CE).MethodsThe discovery GWAS included 19 099 ADHD cases and 34 194 control participants. The combined target sample included 845 people with ADHD (age: 8-40 years). RTV and CE were available from reaction time and response inhibition tasks. ADHD PRS were calculated from the GWAS using a leave-one-study-out approach. Regression analyses were run to investigate whether ADHD PRS were associated with CE and RTV. Results across sites were combined via random effect meta-analyses.ResultsWhen combining the studies in meta-analyses, results were significant for RTV (R2 = 0.011, β = 0.088, p = 0.02) but not for CE (R2 = 0.011, β = 0.013, p = 0.732). No significant association was found between ADHD PRS and RTV or CE in any sample individually (p > 0.10).ConclusionsWe detected a significant association between PRS for ADHD and RTV (but not CE) in individuals with ADHD, suggesting that common genetic risk variants for ADHD influence attention regulation.
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- 2022
145. The Effectiveness of a Field Observation Exercise to Learn Process Management
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Nikandish, Naser, Kim, Dayoung, and Salvador, Rommel O.
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To address the need for students to better comprehend process management concepts in an undergraduate-level operations management course, we proposed and examined the effectiveness of an experiential learning activity, the "Service Process Observation Exercise (SPOE)." After teaching process management topics in the form of a traditional lecture, students were offered the opportunity to observe, record, and analyze a live, functioning process and to report their findings. Analyzing exam results following the activity, we found that the students who participated in the SPOE scored 5.3% higher than students who did not participate on items measuring knowledge of process management concepts. No differences were found on items measuring the knowledge of other concepts covered in the course. These findings are robust, even after controlling for potential covariates, suggesting that the SPOE significantly improves student comprehension of concepts directly related to process management.
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- 2023
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146. Integrating Quantum Key Distribution into TLS 1.3: A Transport Layer Approach to Quantum-Resistant Communications in Optical Networks.
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Carlos Rubio Garcia, Abraham Cano Aguilera, J. J. Vegas Olmos, Simon Rommel, and Idelfonso Tafur Monroy
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- 2024
147. Deep invariant networks with differentiable augmentation layers
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Rommel, Cédric, Moreau, Thomas, and Gramfort, Alexandre
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Computer Science - Machine Learning ,Computer Science - Artificial Intelligence - Abstract
Designing learning systems which are invariant to certain data transformations is critical in machine learning. Practitioners can typically enforce a desired invariance on the trained model through the choice of a network architecture, e.g. using convolutions for translations, or using data augmentation. Yet, enforcing true invariance in the network can be difficult, and data invariances are not always known a piori. State-of-the-art methods for learning data augmentation policies require held-out data and are based on bilevel optimization problems, which are complex to solve and often computationally demanding. In this work we investigate new ways of learning invariances only from the training data. Using learnable augmentation layers built directly in the network, we demonstrate that our method is very versatile. It can incorporate any type of differentiable augmentation and be applied to a broad class of learning problems beyond computer vision. We provide empirical evidence showing that our approach is easier and faster to train than modern automatic data augmentation techniques based on bilevel optimization, while achieving comparable results. Experiments show that while the invariances transferred to a model through automatic data augmentation are limited by the model expressivity, the invariance yielded by our approach is insensitive to it by design., Comment: Accepted to NeurIPS 2022
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- 2022
148. Constraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations
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Oliveira, J. Marques, Sicardy, B., Gomes-Júnior, A. R., Ortiz, J. L., Strobel, D. F., Bertrand, T., Forget, F., Lellouch, E., Desmars, J., Bérard, D., Doressoundiram, A., Lecacheux, J., Leiva, R., Meza, E., Roques, F., Souami, D., Widemann, T., Santos-Sanz, P., Morales, N., Duffard, R., Fernández-Valenzuela, E., Castro-Tirado, A. J., Braga-Ribas, F., Morgado, B. E., Assafin, M., Camargo, J. I. B., Vieira-Martins, R., Benedetti-Rossi, G., Santos-Filho, S., Banda-Huarca, M. V., Quispe-Huaynasi, F., Pereira, C. L., Rommel, F. L., Margoti, G., Dias-Oliveira, A., Colas, F., Berthier, J., Renner, S., Hueso, R., Pérez-Hoyos, S., Sánchez-Lavega, A., Rojas, J. F., Beisker, W., Kretlow, M., Herald, D., Gault, D., Bath, K. -L., Bode, H. -J., Bredner, E., Guhl, K., Haymes, T. V., Hummel, E., Kattentidt, B., Klös, O., Pratt, A., Thome, B., Avdellidou, C., Gazeas, K., Karampotsiou, E., Tzouganatos, L., Kardasis, E., Christou, A. A., Xilouris, E. M., Alikakos, I., Gourzelas, A., Liakos, A., Charmandaris, V., Jelínek, M., Štrobl, J., Eberle, A., Rapp, K., Gährken, B., Klemt, B., Kowollik, S., Bitzer, R., Miller, M., Herzogenrath, G., Frangenberg, D., Brandis, L., Pütz, I., Perdelwitz, V., Piehler, G. M., Riepe, P., von Poschinger, K., Baruffetti, P., Cenadelli, D., Christille, J. -M., Ciabattari, F., Di Luca, R., Alboresi, D., Leto, G., Sanchez, R. Zanmar, Bruno, P., Occhipinti, G., Morrone, L., Cupolino, L., Noschese, A., Vecchione, A., Scalia, C., Savio, R. Lo, Giardina, G., Kamoun, S., Barbosa, R., Behrend, R., Spano, M., Bouchet, E., Cottier, M., Falco, L., Gallego, S., Tortorelli, L., Sposetti, S., Sussenbach, J., Abbeel, F. Van Den, André, P., Llibre, M., Pailler, F., Ardissone, J., Boutet, M., Sanchez, J., Bretton, M., Cailleau, A., Pic, V., Granier, L., Chauvet, R., Conjat, M., Dauvergne, J. L., Dechambre, O., Delay, P., Delcroix, M., Rousselot, L., Ferreira, J., Machado, P., Tanga, P., Rivet, J. -P., Frappa, E., Irzyk, M., Jabet, F., Kaschinski, M., Klotz, A., Rieugnie, Y., Klotz, A. N., Labrevoir, O., Lavandier, D., Walliang, D., Leroy, A., Bouley, S., Lisciandra, S., Coliac, J. -F., Metz, F., Erpelding, D., Nougayrède, P., Midavaine, T., Miniou, M., Moindrot, S., Morel, P., Reginato, B., Reginato, E., Rudelle, J., Tregon, B., Tanguy, R., David, J., Thuillot, W., Hestroffer, D., Vaudescal, G., Aissa, D. Baba, Grigahcene, Z., Briggs, D., Broadbent, S., Denyer, P., Haigh, N. J., Quinn, N., Thurston, G., Fossey, S. J., Arena, C., Jennings, M., Talbot, J., Alonso, S., Reche, A. Román, Casanova, V., Briggs, E., Iglesias-Marzoa, R., Ibáñez, J. Abril, Martín, M. C. Díaz, González, H., García, J. L. Maestre, Marchant, J., Ordonez-Etxeberria, I., Martorell, P., Salamero, J., Organero, F., Ana, L., Fonseca, F., Peris, V., Brevia, O., Selva, A., Perello, C., Cabedo, V., Gonçalves, R., Ferreira, M., Dias, F. Marques, Daassou, A., Barkaoui, K., Benkhaldoun, Z., Guennoun, M., Chouqar, J., Jehin, E., Rinner, C., Lloyd, J., Moutamid, M. El, Lamarche, C., Pollock, J. T., Caton, D. B., Kouprianov, V., Timerson, B. W., Blanchard, G., Payet, B., Peyrot, A., Teng-Chuen-Yu, J. -P., Françoise, J., Mondon, B., Payet, T., Boissel, C., Castets, M., Hubbard, W. B., Hill, R., Reitsema, H. J., Mousis, O., Ball, L., Neilsen, G., Hutcheon, S., Lay, K., Anderson, P., Moy, M., Jonsen, M., Pink, I., Walters, R., and Downs, B.
- Subjects
Astrophysics - Earth and Planetary Astrophysics - Abstract
A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of which yielded a central flash detection. We aimed at constraining Triton's atmospheric structure and the seasonal variations of its atmospheric pressure since the Voyager 2 epoch (1989). We also derived the shape of the lower atmosphere from central flash analysis. We used Abel inversions and direct ray-tracing code to provide the density, pressure, and temperature profiles in the altitude range $\sim$8 km to $\sim$190 km, corresponding to pressure levels from 9 {\mu}bar down to a few nanobars. Results. (i) A pressure of 1.18$\pm$0.03 {\mu}bar is found at a reference radius of 1400 km (47 km altitude). (ii) A new analysis of the Voyager 2 radio science occultation shows that this is consistent with an extrapolation of pressure down to the surface pressure obtained in 1989. (iii) A survey of occultations obtained between 1989 and 2017 suggests that an enhancement in surface pressure as reported during the 1990s might be real, but debatable, due to very few high S/N light curves and data accessible for reanalysis. The volatile transport model analysed supports a moderate increase in surface pressure, with a maximum value around 2005-2015 no higher than 23 {\mu}bar. The pressures observed in 1995-1997 and 2017 appear mutually inconsistent with the volatile transport model presented here. (iv) The central flash structure does not show evidence of an atmospheric distortion. We find an upper limit of 0.0011 for the apparent oblateness of the atmosphere near the 8 km altitude., Comment: 52 pages, 26 figures in the main paper, 2 figures in appendix B, 9 figures in appendix C, 1 long table over 5 pages
- Published
- 2022
- Full Text
- View/download PDF
149. Qubit-compatible substrates with superconducting through-silicon vias
- Author
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Grigoras, K., Yurttagül, N., Kaikkonen, J. -P., Mannila, E. T., Eskelinen, P., Lozano, D. P., Li, H. -X., Rommel, M., Shiri, D., Tiencken, N., Simbierowicz, S., Ronzani, A., Hätinen, J., Datta, D., Vesterinen, V., Grönberg, L., Biznárová, J., Roudsari, A. Fadavi, Kosen, S., Osman, A., Prunnila, M., Hassel, J., Bylander, J., and Govenius, J.
- Subjects
Quantum Physics ,Condensed Matter - Superconductivity - Abstract
We fabricate and characterize superconducting through-silicon vias and electrodes suitable for superconducting quantum processors. We measure internal quality factors of a million for test resonators excited at single-photon levels, on chips with superconducting vias used to stitch ground planes on the front and back sides of the chips. This resonator performance is on par with the state of the art for silicon-based planar solutions, despite the presence of vias. Via stitching of ground planes is an important enabling technology for increasing the physical size of quantum processor chips, and is a first step toward more complex quantum devices with three-dimensional integration., Comment: Accepted version. 11 pages, 7 figures, 2 tables with appendices included
- Published
- 2022
- Full Text
- View/download PDF
150. SORA: Stellar Occultation Reduction and Analysis
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Gomes-Júnior, A. R., Morgado, B. E., Benedetti-Rossi, G., Boufleur, R. C., Rommel, F. L., Banda-Huarca, M. V., Kilic, Y., Braga-Ribas, F., and Sicardy, B.
- Subjects
Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
The stellar occultation technique provides competitive accuracy in determining the sizes, shapes, astrometry, etc., of the occulting body, comparable to in-situ observations by spacecraft. With the increase in the number of known Solar System objects expected from the LSST, the highly precise astrometric catalogues, such as Gaia, and the improvement of ephemerides, occultations observations will become more common with a higher number of chords in each observation. In the context of the Big Data era, we developed SORA, an open-source python library to reduce and analyse stellar occultation data efficiently. It includes routines from predicting such events up to the determination of Solar System bodies' sizes, shapes, and positions., Comment: 15 pages, 7 figures
- Published
- 2022
- Full Text
- View/download PDF
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