A conversation with Bernardo Gutiérrez: Exploring technopolitics in Latin America

In this conversation, Bernardo Gutiérrez examines the multifaceted roles played by digital media technologies in the processes of resistance and emancipation of several Latin American countries, with a particular focus on Mexico, Brazil, and Colombia. Relying on his extensive experience as a journalist and activist, and on the preliminary findings of his new project funded by Oxfam, an international confederation to find solutions to poverty, an injustice around the world, he argues that the similarities among these new mobilizations have to be looked for in their technopolitical architecture and in the forms of organization-action they assume, rather than in their demands, shared ideologies, and grievances

The need for open data sharing in the era of global pandemics

Since the start of the pandemic, data on different countries’ case counts has been readily available. However, not all data is equally useful. In this post, Bernardo Gutierrez and Sabrina Li, from the Open COVID-19 Data Working Group and the Oxford Martin School, outline the need for much more detailed, open and accessible sharing to inform science and policymaking. The authors argue for open, accessible data sharing and highlight the need for data collection processes to be increasingly homogenised

Trapping and Cooling of Ca+ for Cold Ion-Radical Collisions

Free radicals are molecules that contain an unpaired valence electron which induces high reactivity. Ion radical reactions are typically exothermic and have low (or zero) activation energy. It is for these reasons that ion-radical reactions are believed to dominate in interstellar clouds where temperatures hover around 3-10K. State-to-state measurements require precision control of both reactants.https://digitalscholarship.unlv.edu/durep_posters/1150/thumbnail.jp

Estudio de factores asociados a glositis migratoria benigna en pacientes diagnosticados en la Clinica de Diagnostico Oral de la Universidad de Talca en el periodo 2004 - 2008

51 p.La Glositis Migratoria Benigna o Lengua Geográfica es una condición benigna, de etiología desconocida. Numerosos factores etiológicos han sido propuestos, aunque ninguno proporciona pruebas netas de una relación causal. Se realizó un estudio de casos y controles para determinar la relación entre Glositis Migratoria Benigna y algunos factores asociados. El grupo casos, se conformó por 18 pacientes diagnosticados en la Clínica de Diagnóstico Oral de la Universidad de Talca y el grupo control, por 18 pacientes atendidos en la misma universidad por otras causas. Los sujetos de ambos grupos fueron semejantes en edad y sexo, realizándoles anamnesis, examen oral y aplicación del test de valoración de estrés de Reeder. En el grupo casos se encontró mayor cantidad de mujeres (67%), estableciéndose una relación con los hombres de 2:1 y la mayoría de los pacientes se encontró bajo los 40 años. Las lesiones se ubicaron principalmente a nivel dorsal y lateral, siendo en un 78%, sintomáticas. Una asociación estadísticamente significativa, con la presencia de Lengua Fisurada (28% de los casos, p=0,016) y niveles altos de estrés (28% nivel alto y 72% nivel medio en grupo casos, p=0,021) fue establecida, así como también, con la condición de no fumador (83% de los casos, p=0,015). Sin embargo, no se pudo establecer asociación estadística con la presencia de condiciones sistémicas (p=0,494). Resulta interesante, por lo tanto, ampliar la investigación en este campo de la Patología Oral, por una lado, para obtener datos de la realidad nacional y por otro, para dar respuesta etiológica a una condición largamente estudiada

A conversation with Bernardo Gutiérrez: Exploring technopolitics in Latin America

In this conversation, Bernardo Gutiérrez examines the multifaceted roles played by digital media technologies in the processes of resistance and emancipation of several Latin American countries, with a particular focus on Mexico, Brazil, and Colombia. Relying on his extensive experience as a journalist and activist, and on the preliminary findings of his new project funded by Oxfam, an international confederation to find solutions to poverty, an injustice around the world, he argues that the similarities among these new mobilizations have to be looked for in their technopolitical architecture and in the forms of organization-action they assume, rather than in their demands, shared ideologies, and grievances

UTILIZAÇÃO DE LABORATÓRIOS VIRTUAIS DE APRENDIZAGEM PARA O ENSINO REMOTO DE QUÍMICA EXPERIMENTAL

Com a Pandemia do Covid 19, todo sistema educacional precisou modificar seus modos de ensino. Isso levou muitos pesquisadores da educação, como também os professores a propor uma nova ideia de ensino, surgindo então as aulas remotas. Com essas aulas muitas disciplinas de caráter prático, como a Química, necessitavam de recursos específicos para tornar as aulas o mais realista possível. Assim, diante dessa problemática de desenvolver aulas de química remota, mas que apresente um caráter prático, objetivou-se desenvolver uma proposta de aula remota para disciplina de Química Experimental de curso superior com uso de Laboratórios Virtuais De Aprendizagem (LVA). Metologicamente, foi realizado uma análise exploratória, isto é, uma revisão bibliográfica de artigos científicos que abordassem a temática em questão, esses trabalhos foram buscados em bancos de dados como: Google acadêmico, Periódicos Capes, scielo, scifinder scholar. Também foram realizadas buscas em sites que apresentam os LVA. Assim, com dois dos cinco LVA’s identificados elaborou-se duas propostas de aula remota abordando os conteúdos de Titulação de Neutralização e Espectroscopia. As propostas foram esquematizadas em quadros e apresentado as interfaces dos LVA’s selecionados (Phet Colorado e Chemistry Lab). As propostas de aulas são aplicáveis em turmas de Química Experimental do ensino superior, podem essas auxiliarem os docentes nas aulas remotas para tornar a aprendizagem dos alunos mais qualificada dentro de todo contexto vivenciado atualmente.não h

Data Sharing in Southeast Asia During the First Wave of the COVID-19 Pandemic

Background: When a new pathogen emerges, consistent case reporting is critical for public health surveillance. Tracking cases geographically and over time is key for understanding the spread of an infectious disease and effectively designing interventions to contain and mitigate an epidemic. In this paper we describe the reporting systems on COVID-19 in Southeast Asia during the first wave in 2020, and highlight the impact of specific reporting methods. Methods: We reviewed key epidemiological variables from various sources including a regionally comprehensive dataset, national trackers, dashboards, and case bulletins for 11 countries during the first wave of the epidemic in Southeast Asia. We recorded timelines of shifts in epidemiological reporting systems and described the differences in how epidemiological data are reported across countries and timepoints. Results: Our findings suggest that countries in Southeast Asia generally reported precise and detailed epidemiological data during the first wave of the pandemic. Changes in reporting rarely occurred for demographic data, while reporting shifts for geographic and temporal data were frequent. Most countries provided COVID-19 individual-level data daily using HTML and PDF, necessitating scraping and extraction before data could be used in analyses. Conclusion: Our study highlights the importance of more nuanced analyses of COVID-19 epidemiological data within and across countries because of the frequent shifts in reporting. As governments continue to respond to impacts on health and the economy, data sharing also needs to be prioritised given its foundational role in policymaking, and in the implementation and evaluation of interventions

New modulation zero-shift method to characterize fast group delay ripple of dispersion-compensating fiber Bragg gratings

An upgrade to standard modulation phase-shift method is shown to improve accuracy through electrical scan of the optical spectrum. Experiments have allowed the capture of fast group delay ripple of a dispersion-compensating fiber Bragg grating with only a small modification to the standard setup.Peer Reviewe

Cyclic di-GMP regulates type three secretion system and virulence in Bordetella bronchiseptica

The second messenger cyclic di-GMP (c-di-GMP) is a ubiquitous molecule in bacteria that regulates diverse phenotypes. Among them, motility and biofilm formation are the most studied. Furthermore, c-di-GMP has been suggested to regulate virulence factors, making it important for pathogenesis. Previously, we reported that c-di-GMP regulates biofilm formation and swimming motility in Bordetella bronchiseptica. Here, we present a multi-omics approach for the study of B. bronchiseptica strains expressing different cytoplasmic c-di-GMP levels, including transcriptome sequencing (RNA-seq) and shotgun proteomics with label-free quantification. We detected 64 proteins significantly up- or downregulated in either low or high c-di-GMP levels and 358 genes differentially expressed between strains with high c-di-GMP levels and the wild-type strain. Among them, we found genes for stress-related proteins, genes for nitrogen metabolism enzymes, phage-related genes, and virulence factor genes. Interestingly, we observed that a virulence factor like the type III secretion system (TTSS) was regulated by c-di-GMP. B. bronchiseptica with high c-di-GMP levels showed significantly lower levels of TTSS components like Bsp22, BopN, and Bcr4. These findings were confirmed by independent methods, such as quantitative reverse transcription-PCR (q-RT-PCR) and Western blotting. Higher intracellular levels of c-di-GMP correlated with an impaired capacity to induce cytotoxicity in a eukaryotic cell in vitro and with attenuated virulence in a murine model. This work presents data that support the role that the second messenger c-di-GMP plays in the pathogenesis of Bordetella.Fil: Gutierrez, María de la Paz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Biotecnología y Biología Molecular. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Biotecnología y Biología Molecular; ArgentinaFil: Wong, Ting. West Virginia University; Estados UnidosFil: Damron, F. Heath. West Virginia University; Estados UnidosFil: Fernandez, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Biotecnología y Biología Molecular. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Biotecnología y Biología Molecular; ArgentinaFil: Sisti, Federico Bernardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Biotecnología y Biología Molecular. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Biotecnología y Biología Molecular; Argentin

Diseño de infraestructura vial de las calles del sector Cafetal I, distrito de Guadalupe, provincia de Pacasmayo

La presente investigación tuvo como escenario principal el sector Cafetal I, distrito de Guadalupe, en la provincia de Pacasmayo y tuvo como objetivo elaborar el diseño de infraestructura vial en las calles del sector Cafetal I, beneficiando directamente a todos los pobladores habitantes del lugar. Se empleó una metodología no experimental aplicada, de tipo descriptiva, teniendo como población a todas las calles del sector Cafetal I y como muestra a 7 calles del mismo. Se utilizaron técnicas como la observación y análisis documental e instrumentos como guías de observación, fichas resumen y fichas de recolección de datos, indispensable en la recopilación de información. El problema principal radica en la inexistencia de vías aptas que permita la circulación de vehículos e individuos, dificultando el acceso a distintos lugares y perjudicando el desarrollo de la población. Se realizó el estudio de tráfico obteniendo un IMDa equivalente a 62 vehículos y un tráfico de diseño de 418 979 EE. Además, se obtuvo un CBR% 13.7, correspondiente a una subrasante buena, y un caudal de diseño de 0.104 m³/s. Se logró diseñar la infraestructura vial de la zona con pavimento de tipo flexible guiado por el método AASHTO 93 cumpliendo con las normas correspondientes