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2. 'We Are Not Being Taught Sustainable Citizenship!': Podcasts for Critical Science Literacy in Teacher Education

Author

Valeria M. Cabello, Carmen Gloria Zúñiga, César Amador Valbuena, Franklin Manrique, María Jesús Albarrán, and Ana Moncada-Arce

Abstract

Education on sustainability is a crucial goal that requires a transformative shift in teacher education to drive meaningful changes oriented to action. A cross-sectional study with an exploratory design investigated preservice science teachers' perceptions regarding teaching sustainable citizenship, specifically focusing on the climate crisis and earthquakes-tsunamis. The study was conducted in two Chilean universities with similar teacher preparation programs. The team designed a podcast series, which was used and evaluated by the 13 participants through action research. Three group discussions explored their perceptions of the resources, as well as the aims and challenges of teaching sustainable citizenship and the podcasts. We used Grounded Theory steps, including triangulation by the researchers to ensure reliability, to qualitatively analyse the data. The results reveal a constraint on teaching in areas where the participants lacked the necessary preparation and background knowledge as students and preservice teachers. The main challenges were related to interdisciplinarity, the social dimension of socio-scientific issues and context-responsive teaching methods. The perceived aims were the development of students' critical thinking, informed positioning, and encouraging active citizen participation. Preservice teachers found the podcast series to be a valuable new epistemic and pedagogical resource that can support their efforts to teach sustainable citizenship and implement pedagogical strategies. The autonomous usage of the device triggered reflection processes, particularly regarding the human rights perspective, which unveiled the socio-political dimensions inherent in science education. It promoted personal re-positioning as active citizens and educators and empowered them to seek out and pursue the changes needed to reshape future classrooms. We discuss these findings in the context of teacher preparation and the use of educational technology in teacher education.

Published
2024

3. Radio continuum emission from a tidal dwarf galaxy

Author

Moncada-Cuadri, Blanca M., Lisenfeld, Ute, Querejeta, Miguel, and Mundell, Carole

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

Tidal dwarf galaxies (TDGs) form in the debris of galaxy mergers, making them ideal testbeds for investigating star formation in an extreme environment. We present radio continuum EVLA observations spanning 1-2 GHz of the interacting system Arp 94, which contains the TDG J1023+1952. We detect extended radio continuum emission from the disc of the TDG's putative parent galaxy, the spiral NGC 3227. The TDG lies in front of the spiral disc, partially overlapping in projection. This challenging alignment complicates the separation of the respective contributions of radio emission from the TDG and disc. However, we show that the radio continuum appears more prominent around the TDG's location, suggesting the detection of emission from the TDG. Quantifying this argument, we derive an upper limit of 2.2 mJy for the whole TDG's emission. Our derived in-band spectral index map of the system generally shows the expected behaviour of combined thermal and synchrotron radio emission in a galaxy disc, except for a region at the periphery of the disc and the TDG with a flat spectrum (spectral index ~-0.4) unrelated to regions with high H alpha emission. We speculate that at this location - which coincides with the intersection of faint tidal tails - the collision of gas clouds produces shocks which re-accelerate cosmic ray electrons, and thereby enhance the radio emission. Overall, this study provides new insights about the Arp 94 system and expands the sample of TDGs studied at radio frequencies, with only two confirmed detections so far., Comment: 10 pages, 4 tables, 7 figures. Accepted For Publication in MNRAS

Published
2024
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4. The Childhood Cost Calculator (C3): A Simple Tool for Costing Interventions for Children and Youth. Report

Author

Brookings Institution, Center for Universal Education, Clement Adamba, Dante Castillo-Canales, Chhorn Lin, Emily Gustafsson-Wright, Mustapha Mensah, Rosa Maria Moncada, Erick Nehring, Elyse Painter, Sorachana Seng, Wendy Smith, and Leslie Tettey

Abstract

To address the learning crisis and other challenges facing children and youth (those 15-24 years of age) it is critical for governments, multilateral and bilateral funders, other donors, and implementers to have a clear understanding of program costs and cost breakdowns to inform financing decisions. For nearly a decade, the Center for Universal Education (CUE) at the Brookings Institution has led the Childhood Cost Data initiative, a research project focused on the collection, analysis, and use of cost data to increase the volume and quality of funding for programs targeting children and youth. The initiative's end goal is to improve learning and life outcomes for the youngest generation through these advancements. As part of this initiative, Brookings developed the Childhood Cost Calculator (C3), intended to facilitate cost analysis. This study introduces C3, the tool's various dimensions and functionalities, and presents learnings from three case studies from piloting the calculator in the education or early childhood development (ECD) sectors in Cambodia, Ghana, and Honduras. It concludes with suggestions for a way forward that supports funders, implementers, and researchers to better use cost data to make strides in tackling the multiple crises facing children and youth today.

Published
2023

9. Facing the challenges to shorten the diagnostic odyssey: first Whole Genome Sequencing experience of a Colombian cohort with suspected rare diseases

Author

Velasco, Harvy Mauricio, Bertoli-Avella, Aida, Jaramillo, Carolina Jaramillo, Cardona, Danny Styvens, González, Leonel Andrés, Vanegas, Melisa Naranjo, Arango, Juan Pablo Valencia, Buitrago, Cesar Augusto, González, Jorge Alberto Gutiérrez, Marcello, Jonas, Bauer, Peter, and Moncada, Juliana Espinosa

Published
2024
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10. Batch-Balancing Improvement with Data Augmentation Techniques for Clinical Electroencephalographic Data

Author

Fernández-Madera González, David, Moncada Martins, Fernando, González, Víctor M., Villar, José R., García López, Beatriz, Gómez-Menéndez, Ana Isabel, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Quintián, Héctor, editor, Corchado, Emilio, editor, Troncoso Lora, Alicia, editor, Pérez García, Hilde, editor, Jove Pérez, Esteban, editor, Calvo Rolle, José Luis, editor, Martínez de Pisón, Francisco Javier, editor, García Bringas, Pablo, editor, Martínez Álvarez, Francisco, editor, Herrero, Álvaro, editor, and Fosci, Paolo, editor

Published
2025
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11. Intercultural Sensitivity and Cultural Othering in English Language Pre-Service Teachers

Author

Linares, Sthephanny Moncada

Abstract

Developing intercultural communicative competence has become an inevitable need within 21st-century demands, mobilizing global efforts to promote unity through diversity. However, within the Colombian context and supported by an economic interest in bilingualism, most English language teaching programs still advocate educational practices that reaffirm cultural homogenization and legitimation. This presupposes a challenge for pre-service language teachers, who may not be interculturally prepared to overcome their ethnocentrism, and yet have to face a language classroom. The study explored the intercultural sensitivity level of a group of 50 pre-service English language teachers from a Colombian private university, its influencing factors, and explained its relationship with the representation of the Other. A twostage explanatory sequential mixed-method design was employed, involving, in the first stage, quantitative data from a self-awareness intercultural sensitivity questionnaire and in the second stage, qualitative data from semi-structured interviews and two in-class observations. Findings indicated that the participants demonstrated ethnocentric intercultural sensitivity arising from a traditionalist culture teaching approach, misleading artificial means to culture learning, and limited overseas cultural experience, which led them to perpetuate Cultural Othering, a social representation materialized through mechanisms of overgeneralization, cultural pride, and cultural underestimation. The conclusions and implications are further discussed.

Published
2023

12. EFL Teacher Professional Development Needs: Voices from the Periphery

Author

Barrientos-Moncada, Marta Isabel, Carvajal-Castaño, Natalia Andrea, and Aristizabal-Cardona, Hernán Santiago

Abstract

EFL teachers' professional development in Colombia has been characterized by top-down policies that neglect the regions in terms of contextualized professional development programs and resources. This article is an effort to make EFL teachers' needs in the Eastern region of Antioquia, Colombia, visible for academic institutions and local authorities to propose coherent professional development programs. This report is based on a section of the findings of a larger study called "Diagnosis of the needs about plurilingualism in the regions of Antioquia". Findings show that EFL teachers in the Eastern region claim for ongoing and contextualized professional development programs, differentiated for primary and secondary-school teachers, and focused on instructional material design and adaptation according to the resources available in the local communities. Conclusions from this study outline implications for educational institutions to support teachers in pursuing their professional development within their contexts, methodological limitations for researchers, and possibilities for further research for stakeholders in the territory.

Published
2023

13. Tuberculosis in otherwise healthy adults with inherited TNF deficiency

Author

Arias, Andrés A., Neehus, Anna-Lena, Ogishi, Masato, Meynier, Vincent, Krebs, Adam, Lazarov, Tomi, Lee, Angela M., Arango-Franco, Carlos A., Yang, Rui, Orrego, Julio, Corcini Berndt, Melissa, Rojas, Julian, Li, Hailun, Rinchai, Darawan, Erazo-Borrás, Lucia, Han, Ji Eun, Pillay, Bethany, Ponsin, Khoren, Chaldebas, Matthieu, Philippot, Quentin, Bohlen, Jonathan, Rosain, Jérémie, Le Voyer, Tom, Janotte, Till, Amarajeeva, Krishnajina, Soudée, Camille, Brollo, Marion, Wiegmann, Katja, Marquant, Quentin, Seeleuthner, Yoann, Lee, Danyel, Lainé, Candice, Kloos, Doreen, Bailey, Rasheed, Bastard, Paul, Keating, Narelle, Rapaport, Franck, Khan, Taushif, Moncada-Vélez, Marcela, Carmona, María Camila, Obando, Catalina, Alvarez, Jesús, Cataño, Juan Carlos, Martínez-Rosado, Larry Luber, Sanchez, Juan P., Tejada-Giraldo, Manuela, L’Honneur, Anne-Sophie, Agudelo, María L., Perez-Zapata, Lizet J., Arboleda, Diana M., Alzate, Juan Fernando, Cabarcas, Felipe, Zuluaga, Alejandra, Pelham, Simon J., Ensser, Armin, Schmidt, Monika, Velásquez-Lopera, Margarita M., Jouanguy, Emmanuelle, Puel, Anne, Krönke, Martin, Ghirardello, Stefano, Borghesi, Alessandro, Pahari, Susanta, Boisson, Bertrand, Pittaluga, Stefania, Ma, Cindy S., Emile, Jean-François, Notarangelo, Luigi D., Tangye, Stuart G., Marr, Nico, Lachmann, Nico, Salvator, Hélène, Schlesinger, Larry S., Zhang, Peng, Glickman, Michael S., Nathan, Carl F., Geissmann, Frédéric, Abel, Laurent, Franco, José Luis, Bustamante, Jacinta, Casanova, Jean-Laurent, and Boisson-Dupuis, Stéphanie

Published
2024
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15. Dynamic Terahertz Beamforming Based on Magnetically Switchable Hyperbolic Materials

Author

Carvalho, William Orivaldo Faria, Moncada-Villa, Edwin, Mejía-Salazar, Jorge Ricardo, and Spadoti, Danilo Henrique

Subjects
Physics - Optics
Abstract

In this work, we introduce a concept to enable dynamic beamforming of terahertz (THz) wavefronts using applied magnetic fields (B). The proposed system exploits the magnetically switchable hyperbolic dispersion of the InSb semiconductor. This phenomenology, combined with diffractive surfaces and magnetic tilting of scattered fields, allows the design of a metasurface that works with either circularly or linearly polarized wavefronts. In particular, we demonstrate numerically that the transmitted beam tilting can be manipulated with the direction and magnitude of B. Numerical results, obtained through the finite element method (FEM), are qualitatively supported by semi-analytical results from the generalized dipole theory. Motivated by potential applications in future Tera-WiFi active links, a proof of concept is conducted for the working frequency f = 300 GHz. The results indicate that the transmitted field can be actively tuned to point in five different directions with beamforming of 45{\deg}, depending on the magnitude and direction of B. In addition to magnetic beamforming, we also demonstrate that our proposal exhibits magnetic circular dichroism (MCD), which can also find applications in magnetically tunable THz isolators for one-way transmission/reflection., Comment: 9 pages, 7 figures

Published
2023

16. Frankincense (Boswellia serrata) Extract Effects on Growth and Biofilm Formation of Porphyromonas gingivalis, and Its Intracellular Infection in Human Gingival Epithelial Cells.

Author

Vang, David, Moreira-Souza, Aline, Zusman, Nicholas, Moncada, German, Matshik Dakafay, Harmony, Asadi, Homer, Ojcius, David, and Almeida-da-Silva, Cassio

Subjects
Boswellia serrata, Fusobacterium nucleatum, Porphyromonas gingivalis, biofilm, epithelial cells
Abstract

Frankincense is produced by Boswellia trees, which can be found throughout the Middle East and parts of Africa and Asia. Boswellia serrata extract has been shown to have anti-cancer, anti-inflammatory, and antimicrobial effects. Periodontitis is an oral chronic inflammatory disease that affects nearly half of the US population. We investigated the antimicrobial effects of B. serrata extract on two oral pathogens associated with periodontitis. Using the minimum inhibitory concentration and crystal violet staining methods, we demonstrated that Porphyromonas gingivalis growth and biofilm formation were impaired by treatment with B. serrata extracts. However, the effects on Fusobacterium nucleatum growth and biofilm formation were not significant. Using quantification of colony-forming units and microscopy techniques, we also showed that concentrations of B. serrata that were not toxic for host cells decreased intracellular P. gingivalis infection in human gingival epithelial cells. Our results show antimicrobial activity of a natural product extracted from Boswellia trees (B. serrata) against periodontopathogens. Thus, B. serrata has the potential for preventing and/or treating periodontal diseases. Future studies will identify the molecular components of B. serrata extracts responsible for the beneficial effects.

Published
2024

17. A virtually supervised exercise program improved fitness and mental wellness in healthy and comorbidity older adult individuals during the COVID-19 pandemic.

Author

Gonzalez, Olga, Del Valle, Alfonso, Jiménez-Maldonado, Alberto, Canton-Martínez, Ermilo, Rentería, Iván, Machado-Parra, Juan, Reyes, Rubén, Moncada-Jiménez, José, and Johnson, David

Subjects
fitness level, older adults, physical exercise, social distancing, wellness, Humans, COVID-19, Aged, Male, Female, Physical Fitness, Mental Health, Comorbidity, Mexico, Exercise, Exercise Therapy, Aged, 80 and over, SARS-CoV-2, Pandemics, Middle Aged
Abstract

BACKGROUND: The COVID-19 pandemic affected older adults worldwide. Sedentary older adults experienced more severe adverse health effects due to their shelter-in-place. Physical activity was strongly recommended during periods of social distancing. The present study evaluated the impact of a virtually supervised exercise program on the physical fitness and mental health of Mexican older adults during the pandemics lockdown. METHODS: Participants were 44 older adults who were assigned to one of four physical fitness groups: a healthy control group (Ctrl-H, n = 15), a comorbidity control group (Ctrl-COM, n = 9), an exercise group without comorbidities (Exe-H, n = 11), and an exercise group with comorbidities (Exe-COM, n = 9). The participants engaged in a 60-min, virtually-supervised concurrent exercise session three times/week for 12 weeks. Fitness was measured using the online Senior Fitness Tests and the 4-m Gait Speed Test. Mental health was evaluated through virtual interviews using the Hamilton Depression Rating Scale, the Geriatric Depression Scale, and the Connor-Davidson Resilience Scale. Within-subject pre vs. post-intervention comparisons tested for significant differences, between-groups and over time. RESULTS: Significant interactions were found in the scores of the Geriatric Depression Scale (p ≤ 0.0001; ηp2 = 0.35), the Hamilton Depression Scale (p ≤ 0.0001; ηp2 = 0.35), resilience scores (p ≤ 0.0001; ηp2 = 0.46), lower-body strength (p ≤ 0.0001; ηp2 = 0.32), timed up-and-go test (p = 0.018; ηp2 = 0.18), the 6MWT distance scores (p ≤ 0.0001; ηp2 = 0.39), and the 4-m gait speed test scores (p = 0.011; ηp2 = 0.20). CONCLUSION: A long-term virtually-supervised exercise program conducted during the COVID-19 lockdown period led to marked improvements in both the fitness and mental health of older Mexican adults. Comorbidities did not diminish these benefits. These findings provide empirical support for online exercise programs in the daily routines of older adults to make clinically meaningful improvements in both physical and mental well-being.

Published
2024

18. Physical exercise and cognition in older adults, a scientific approach scanty reported in Latin America and Caribbean populations.

Author

Jiménez-Maldonado, Alberto, Rentería, Iván, Moncada-Jiménez, José, García-Suárez, Patricia, and Johnson, David

Subjects
Latin America, executive functions, general cognition, older adults, physical exercise
Abstract

The advancement of public services, including the increased accessibility of health services, has led to a rise in life expectancy globally. As a result, aging populations are becoming more prevalent, raising concerns about cognitive decline. Fortunately, non-pharmacological methods, such as physical exercise, have been shown to mitigate the effects of aging on the brain. In this perspective article, we examined meta-analyses on the impact of physical exercise on cognition in older adults. The results indicate that combined exercise (i.e., aerobic plus strength training), has a significant positive effect on overall cognition and executive function. However, we found a lack of scientific studies on this topic in Latin American and Caribbean countries. Therefore, there is a pressing need for research to identify the feasibility of physical exercise interventions to improve cognitive skills in older adults from these regions.

Published
2024

20. A lactate-dependent shift of glycolysis mediates synaptic and cognitive processes in male mice

Author

Fernández-Moncada, Ignacio, Lavanco, Gianluca, Fundazuri, Unai B., Bollmohr, Nasrin, Mountadem, Sarah, Dalla Tor, Tommaso, Hachaguer, Pauline, Julio-Kalajzic, Francisca, Gisquet, Doriane, Serrat, Roman, Bellocchio, Luigi, Cannich, Astrid, Fortunato-Marsol, Bérénice, Nasu, Yusuke, Campbell, Robert E., Drago, Filippo, Cannizzaro, Carla, Ferreira, Guillaume, Bouzier-Sore, Anne-Karine, Pellerin, Luc, Bolaños, Juan P., Bonvento, Gilles, Barros, L. Felipe, Oliet, Stephane H. R., Panatier, Aude, and Marsicano, Giovanni

Published
2024
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22. Understanding the factors associated with COVID-19 vaccine hesitancy in Venezuela

Author

Chacón-Labrador, Fabián R., Passantino, María G., Moncada-Ortega, Augusto, Ávila, Atahualpa A., Moreno, Andrea A., Kuffaty-Akkou, Nicolle A., Pedroza, Luisana M., Camejo-Ávila, Natasha A., Mendoza-Millán, Daniela L., Rodriguez-Saavedra, Carlis M., Marcano-Rojas, María V., Hernández-Medina, Fernando, Grillet, María E., Carrión-Nessi, Fhabián S., and Forero-Peña, David A.

Published
2024
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27. Preliminary data on nematode infections in guinea pigs in the province of Cajabamba (Cajamarca, Peru)

Author

K. Tacilla, J. Rojas-Moncada, T. Torrel, W. Quispe, and L. Vargas-Rocha

Subjects
cavia porcellus, breeding, parasite, parasite association, prevalence, Veterinary medicine, SF600-1100
Abstract

In the absence of local studies, the current study was conducted in four villages located in the province of Cajabamba (Cajamarca, Peru) to demonstrate and determine the point prevalence of enteric nematodes in guinea pigs (Cavia porcellus) raised in a family-commercial breeding system. A total of 384 faecal samples were collected from guinea pigs and processed using the Sheather Sugar method. The eggs of P. uncinata, Trichuris spp., and Capillaria spp. were identified in guinea pigs from all four villages, resulting in an overall prevalence of 66.15±4.73%. Among the villages, the highest prevalence was observed in Naranjos, with a prevalence of 78.16±8.68% (68 out of 87 guinea pigs). This was followed by Malcas with a prevalence of 67.24±8.54% (78 out of 116 guinea pigs), Ogosgуn-Paucamonte with a prevalence of 64.08±9.27% (66 out of 103 guinea pigs), and La Esperanza with a prevalence of 53.85±11.06% (42 out of 78 guinea pigs). Furthermore, it was found that 66.54±5.80% of guinea pigs had a single nematode, 28.35±5.54% had two nematodes, and 5.12±2.71% had three nematodes. Thus, the presence of enteric nematodes in guinea pigs raised in a family-commercial breeding system from four villages in the Cajabamba district was established.

Published
2024
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28. A specimen-based database of small-eared shrews (Mammalia, Eulipotyphla, Cryptotis) in the Neotropical Region

Author

Lázaro Guevara, Julieta Vargas-Cuenca, Yolanda Hortelano-Moncada, and Fernando A. Cervantes

Subjects
Soricidae, Neotropics, vouchers, museum record, Ne, Biology (General), QH301-705.5
Abstract

This database compiles comprehensive occurrence information, based on voucher specimens of small-eared shrews, genus Cryptotis, that occur from México to Peru. The database integrates the information obtained from four main sources: natural history museums, public databases, fieldwork and scientific literature. It contains 3,639 records from 53 species in 12 countries. Of the total, 83.54% have collecting dates, 51.36% of the specimens are sexed and 84.56% have decimal degrees coordinates. By generating this database and making it publicly available, we hope to improve the biological knowledge of this group of small mammals still poorly studied in the region. It aims to be a valuable resource for students, researchers, conservationists and decision-makers.The dataset contains information on all species of the genus Cryptotis in the Neotropical Region (namely from México to Peru), incorporating the most updated taxonomic and nomenclatural changes. The database includes records in regions and countries that are poorly represented in currently available data repositories. Most records have verified temporal and spatial information.

Published
2024
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29. Changes in dual energy X-ray absorptiometry body composition scores in females following exercise-induced body fluid redistribution

Author

Yamileth Chacón-Araya, Elizabeth Carpio-Rivera, and José Moncada-Jiménez

Subjects
Sports, GV557-1198.995, Sports medicine, RC1200-1245
Abstract

Objectives: The aim of the study was to determine changes in dual energy X-ray absorptiometry (DXA) body composition scores in females following exercise-induced body fluid redistribution. Methods: Thirty females completed sessions of upper-body exercise (UBE), lower-body exercise (LBE), and a seated control (NEC), and body composition was assessed before and after sessions. ANOVA computed interactions between experimental conditions and body composition measurements. Results: For the arms region, fat tissue showed mean differences for NEC (M = 0.56 ± 0.20%; p = 0.009) and UBE (M = 0.68 ± 0.18%; p = 0.001). The fat region showed mean differences for NEC (M = 0.54 ± 0.19%; p = 0.007) and UBE (M = 0.59 ± 0.17%; p = 0.002). The UBE showed mean differences for tissue (M = 0.24 ± 0.03 kg; p ≤ 0.0001), lean mass (M = 0.19 ± 0.02 kg; p ≤ 0.0001), and total mass (M = 0.24 ± 0.03 kg; p ≤ 0.0001). The legs region showed for UBE a mean difference for fat tissue (M = 0.32 ± 0.14%; p = 0.025), fat region (M = 0.31 ± 0.13%; p = 0.026), and lean mass (M = 0.17 ± 0.07 kg; p = 0.021). For the total body region, significant mean differences were found for UBE (M = 0.11 ± 0.02 kg; p ≤ 0.0001) and LBE (M = 0.20 ± 0.03 kg; p ≤ 0.0001). Total mass for UBE (M = 0.14 ± 0.03 kg; p ≤ 0.0001) and LBE (M = 0.21 ± 0.03kg; p ≤ 0.0001) showed significant mean differences. Reliability scores were high within experimental conditions (CV = 0.17% to 3.76%). Conclusion: Exercise-induced body fluid redistribution in females elicited small and reliable changes in body composition scores.

Published
2024
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30. Building Sustainable Research and Innovation Ecosystem in Philippine Higher Education Institutions

Author

Marcelino N. Lunag, Cynthia L. Posadas, Richel L. Lamadrid, Andrew G. Ducas, Anja Teehankee, Marie Kathlyn B. De Guzman, Caroline B. Moncada, and Ma. Concepcion B. Clemente

Abstract

Research and innovation are highlighted as significant priorities among Higher Education Institutions (HEIs) in the Philippines. However, most HEIs in the country have a poor culture of research and innovation, which results in low academic productivity. This literature review was conducted to understand the dynamics of a teaching, research, and innovative university, discuss the current status of Philippine HEIs in terms of research (R&D)-innovation productivity, and excerpt best practices from leading universities in the country as a benchmark for other higher institutions toward building a culture of research and innovation. This study highlights different viewpoints but reveals one thing in common among the established research universities: they have exemplary administrative leadership and proper institutional framework, with strong qualifications from their faculty to absorb all the resources pouring in, thereby significantly boosting them and yielding a fruitful result in terms of research and innovation. With these, other Philippines HEIs need to build and develop a vital research and innovative culture among their stakeholders to produce tangible outcomes, which can be utilized for industry-related improvements and new market opportunities, and to address the nation's most pressing issues. Without the support and proper compensation within academia, industry, and government, the pool of talents will be put on the shelf. Nevertheless, leveling up from teaching institutions to become a research and innovative academia remains interesting as it depends primarily on the university's vision and actions, which are mostly affected by its internal and external environment. This paper hopes to be a springboard in formulating policy and practice toward enhancing research and innovation efficiency among the Philippine HEI's that could contribute to the overall nationwide progress.

Published
2024
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31. A Modular Bio-inspired Robotic Hand with High Sensitivity

Author

Liu, Chao, Moncada, Andrea, Matusik, Hanna, Erus, Deniz Irem, and Rus, Daniela

Subjects
Computer Science - Robotics
Abstract

While parallel grippers and multi-fingered robotic hands are well developed and commonly used in structured settings, it remains a challenge in robotics to design a highly articulated robotic hand that can be comparable to human hands to handle various daily manipulation and grasping tasks. Dexterity usually requires more actuators but also leads to a more sophisticated mechanism design and is more expensive to fabricate and maintain. Soft materials are able to provide compliance and safety when interacting with the physical world but are hard to model. This work presents a hybrid bio-inspired robotic hand that combines soft matters and rigid elements. Sensing is integrated into the rigid bodies resulting in a simple way for pose estimation with high sensitivity. The proposed hand is in a modular structure allowing for rapid fabrication and programming. The fabrication process is carefully designed so that a full hand can be made with low-cost materials and assembled in an efficient manner. We demonstrate the dexterity of the hand by successfully performing human grasp types., Comment: 7 pages, 13 figures, IEEE RoboSoft 2023

Published
2023
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32. Electromagnetic Theory with Quantum Principal Bundles

Author

Moncada, Gustavo Amilcar Saldaña

Subjects
Mathematics - Quantum Algebra, 46L87, 58B99
Abstract

The aim of this paper is to formulate a {\it non--commutative geometrical} version of the classical electromagnetic field theory in the vacuum with the Moyal--Weyl algebra as the space--time by using the theory of quantum principal bundles and quantum principal connections. As a result we will present the correct Maxwell equations in the vacuum of the model, in which we can appreciate the existence of electric and magnetic charges and currents. Finally, in the fourth section we are going to present a {\it mathematical model} for which there are instantons that are not solutions of the corresponding Yang--Mills equation.

Published
2023

33. Colombian surgical outcomes study insights on perioperative mortality rate, a main indicator of the lancet commission on global surgery – a prospective cohort studyResearch in context

Author

Carlos J. Pérez Rivera, Nicolás Lozano-Suárez, Alejandro Velandia-Sánchez, Maria Paula Vargas-Cuellar, Luisa Fernanda Rojas-Serrano, Camilo A. Polanía-Sandoval, Daniela Lara-Espinosa, Laura García-Zambrano, Maria Paz Bohórquez-Tarazona, Silvia Valentina Agudelo-Mendoza, Paulo A. Cabrera-Rivera, Leonardo Briceno-Ayala, Camilo Andres Polania-Sandoval, María Paula Vargas-Cuéllar, Paulo Andrés Cabrera-Rivera, Danna Cruz-Reyes, Juan Guillermo Barrera Carvajal, Luis Felipe Cabrera-Vargas, Oscar Guevara, Laura Cristina Arce Polania, Laura Natalia Buendía Barrios, María Isabel Cristina Camargo Areyanes, Felipe Casas, Valeria Cormane Alfaro, Juan P. García-Méndez, Bayron Guerra, Sharon V. Idarraga-Ayala, Akram Kadamani Abiyomaa, Christopher Montoya, Manuel Santiago Mosquera Paz, María Alejandra Pineda, Juliana Pinzón-Luna, Isabella Roa Bastidas, Carlos Fernando Roman Ortega, Juan D. Saavedra Henao, Laura Carolina SanJuan-Arias, Vanessa Barreto, Julian Corso, Mariana Maksoud-Garcia, Eliana Pineda Mateus, Alejandra Vega Zabaraín, Fabien Mantilla-Sylvain, Nicolas Perez, Sergio Alzate-Ricaurte, Monica Bejarano, Isabella Caicedo Holguin, Alberto Federico García, Stefania Rodriguez Sanchez, Felipe Bernal Santos, Carlos Luna Jaspe, Maria Camila Luna-Jaspe Roa, Maria Paula OLIVERA Bolívar, MariaFernanda Valdivieso Diaz, Yuli Agudelo, Maria Paula Castillo-Aristizábal, Juan Pablo Hoyos Burgos, Maria Clara Maria Clara Mendoza Arango, Gabriel Arroyave, Felipe Buitrago Preciado, Lina María Cardona González, Juan Camilo Correa-Cote, Karen Lorena Franco Arias, Juan Felipe Llano Sierra, Gustavo López, Cesar Mancero, Sebastian Parra, Beatriz Ramirez Gonzalez, Daniela Sierra, Maria Camila Amaya Muñoz, Ashley Blanco-Ramírez, Paul Anthony Camacho, Jorge Campillo, Andrea Ximena Carvajal Mejia, María Alejandra González Yamil, Juan Carlos Osorno Villegas, Eduardo Rubio, Santiago Sánchez Herrera, Sebastian Sanchez Herrera, Tatiana Agudelo, Valentina Andrade, Laura Arango Pérez, Anibal Ariza-Gutiérrez, Jacobo Berrio, Natalia Cantillo Torres, Maria Valeria Chamorro-Rodríguez, Lucia Conde, Oscar Hernando Feo Lee, María Camila González Nieto, Laura Cecilia Ibañez-Pintor, Catalina Ochoa, Juan Ospina, Juan José Pérez-Ocampo, Esteban Portilla Rojas, Daniela Saaibi Rey, Eduardo Serrano, Sharon Michelle Solorza Velásquez, Angélica María Toro Cubides, Raúl Aguiar, Diego Armando Beltrán Rincón, Juan Sebastian Figueroa, Rafael Figueroa-Casanova, Maria Fernanda Gonzalez Mosos, Marcia Gabriela Gómez, Susana Osorno, Laura Laura Palacio, Jose Venegas, Liliana Marcela Caicedo Ramírez, Diana Catalina Cardona Gomez, Daniel Alejandro Fernandez Bolaños, Adriana Fernández-Diago, Victor David Olave Montaño, César Pastás, Silvia Marcela Amorocho, Jorge Barbosa-Santibañez, Vladimir Baron, Alejandra Cartagena-Alvarado, Maria Castillo, Maria Carolina Castillo-Florez, Omar David Dimian Mayorga, Elena Leonor Delgado-Nieto, Ernesto Fajardo, Omar Leonardo Gomez Polania, Tania Gonzalez, Daniel Felipe Guzman Mesa, Andres Isaza-Restrepo, Jaime A. Leal, Camilo Medina, Jorge Navarro-Alean, Maria Antonia Ocampo, Guillermo Oliveros, Maria Ortiz, Jorge I. Ortiz-Mahecha, Katherine Parra Abaunza, Felipe Antonio Pulido Reyes, Natalia Rivera-Rincón, Carlos Alfonso Rodriguez Pinedo, Lizeth Rodriguez Sanchez, Juan Javier Romero, Juan Carlos Sabogal Olarte, Javier Mauricio Salgado Tovar, Guillermo Andrés Torres, Linda Vallejo, Felipe Vargas-Barato, Ana María Vargas Patiño, Juan Pablo Villate León, Miguel Angel Montañez Aldana, Chiara Norato, Hugo Rojas Borda, Miguel Á Romero Núñez, Alejandro Sánchez, Jose Támara López, Jose Támara P, Wilmer Fernando Botache Capera, Rolando Medina Rojas, Juan Torres, Gina Catalina Trujillo, Gabriela Estefanía Cubillos Saavedra, Francisco García-Laverde, Jussef Camilo Naffah Enciso, Julian Arango Betancur, Adriana Cortés-Coronado, Susana Sepúlveda Tamayo, Valentina Arboleda Cardenas, Luis Guillermo García-Barrero, Jhonatan Enrique Garzón-Galindo, Lina Fernanda Torres Parada, Alejandro Arias Quintero, David Cano, Kevin Fernando Montoya Quintero, Santiago Nieto Muñoz, Paula Saza Mejía, Jesus David Gomez Barrios, María Angélica Jimeno, Ghandi Ignacio Restrepo Hernandez, Adrian Rodríguez-Sequea, Juan Carlos Varón Cotes, Hanner Enrique Acevedo Reyes, Claudia Marcela Barandica Bolaño, Maria Camila Sierra-Cote, Laura Daniela Angarita Vargas, Alix Yurany Báez Ramírez, Jose Armando Rodriguez Suarez, David Leonardo Sánchez, Silvia Natalia Sandoval Rangel, Edwin Ulloa Hurtado, Olga Esther Hernández Almanza, Rosalba Inmaculada Martínez Zubiria, Angel Alexis Muegues Salas, Diego Alexander Becerra Cardona, Fabio Hernán Cárdenas Santamaría, Juan Daniel Echeverri Castaño, Juan Sebastián Echeverri Uribe, María Helena Gaitán Buitrago, Luis Felipe Galvis Valencia, Andrea Henao Sabogal, David Felipe López Atehortúa, Juan Manuel Molina Uribe, Edwin Enrique Peñate Suárez, Heiller Torres Valencia, Marcela Velásquez Salazar, Catalina Correa, Hans García, Juan Hernández Leal, Paula Tatiana Muñoz Vargas, Dínimo José Bolívar Sáenz, Camilo Andrés Caicedo Medina, Camilo Andres Garcia Riaño, Stephanye Carrillo Gonzalez, Jaime Lorduy Gómez, Carlos Torres Madrid, Walter Torres Villa, Juan Sebastian Luengas Orozco, Camilo Avendaño Capriles, Carolina Diaz Blanco, Maria Lucía Brieva Hoyos, Paola Andrea Cantillo Moreno, Sofía Carolina Granados Mendoza, José Dario Vizcaino Lara, Karla Lizeth Babativa Peñuela, Paula Andrea Jiménez Bahamón, Jhonier Estiven Maldonado Rico, Duvan Ernesto Martínez Cortes, José Alfredo Orjuela Aragón, Lizeth Daniela Castro Roa, Julieth Sarmiento Gallego, Marta Maria Herazo Meza, Anlly Caterin Hernández Castillo, Rosa Gabriela Rojas Moncada, Lucia Fernanda Casanova Bermeo, Oscar Fernando Cortés Otero, Nicolás Diaz Pinilla, Harrison Rene Herrera Delgado, Simon Alberto Macías Segura, David Ramiro Muñoz Castrillón, Luis Ramiro Nuñez Romero, Cesar Andrés Polania Andrade, Hector Alejandro Valdez Toro, Ana María Cardozo Parrado, Jose Gonzalo Moros, Paula Andrea Nieto, Jorge Mario Patarroyo, Jose Luis Perilla Martínez, María del Pilar Torres Gutierrez, Erika Johana Benito Flórez, Mariana Vergel Gómez, Diana Ximena Robayo Rodriguez, Diego Fernando Salcedo Miranda, Maria Alejandra Triviño Cortés, William Baquero Sastre, Juan Sebastian Bonett, Eliana Cortes, Pedro Fernando Duque, Carlos Enrique Gutierrez, Piedad Echeverry, Andrés Felipe Motta Amar, Lorena Torres, Jeremias Carvajal Bautista, David Mauricio Figueroa Bohórquez, Manuel Latorre Quintana, Diego Fernando Olivera Briñez, Marcel Leonardo Quintero Contreras, Raúl Vera Gamboa, Mariana Arias Zapata, Cristhian Daniel Benavides Caipe, Luisa Fernanda Betancur Acevedo, Valentina Botero Zuluaga, Vanessa Figueroa-Espinoza, Arbey Leandro Londoño-Patiño, Santiago Moncayo-Gonzalez, Laura Sofia Puerta Suárez, Paula Camila Vargas-Arboleda, Lisbet Sofia Gonzalez Cera, Katerine Henao Toro, Leobardo de Jesus Ortiz Pino, Sergio Andrés Vasquez Vargas, Lency Naranjo Zuluaga, Jaime Chamorro Garzón, Adriana Paola Franco Rodriguez, Nataly Johana Acosta Alape, Andrés Felipe Arbelaez Mariño, Juan José Mora Herrera, Javier Felipe Ayala Muñoz, Yeiny Carina Camacho Pinzon, José Francisco Cárdenas Chacón, Liliana Andrea Peña Arenas, Gustavo Adolfo Rodriguez Camargo, Carlos Alberto Sánchez Arango, Daniel Mauricio Bolaños Ñañez, Diana Sofía Garcés-Palacios, María Alejandra Ñañez Pantoja, Omar Alejandro Ortega-Valencia, María Paula Gamboa Bernal, Juan David Lotero Gómez, Juan Sebastián Martínez-Gutiérrez, Daniel Morales-Gómez, Lina Pardo-Jiménez, Leon Miguel Fonseca Galindo, Angélica Maria Garcia Ramirez, Juan David Saurith Ramirez, Ivan Ricardo Barrero Montoya, Santiago Cadena Espitia, Salomé Pallares Rojas, Laura Camila Zapata Berrio, Diana Andrea Benavides Rodríguez, Juan Carlos Gonzalez, Sharon Valentina Idarraga, Óscar Eduardo Márquez Rodríguez, Ivi Yohana Marrugo Prieto, Laura Vanessa Soledad Machado, Rubén Luna, Nicolás Navarro Pulido, Federico Javier Nuñez Ricardo, Andrea Elena García López, Fernando Girón Luque, Nasly Patiño Jaramillo, Néstor Fabian Pedraza Alonso, Javier Yecid Acuña Acuña Rivera JY, Oscar Alexander Guevara Cruz, Juan Sebastián Martínez Buitrago, Nathalia Montoya Oviedo, Marcia Roxana Santafe Guerrero, Juanita Carolina Chaves Cortés, Francisco Mauricio Rincón Tello, Diana Fernanda Bejarano Ramirez, Nicolas Andres Cortes Mejia, Camilo Ernesto Garzon Mesa, Alejandra Moncada Pabon, Diego Rymel Triviño Alvarez, Alonso Vera Torres, Maria Alejandra Cote Martinez, Juan Manuel Machado Rodriguez, Gonzalo Nuñez Martinez, Laura Naranjo Osuna, Andres Felipe Roldan Garay, Daniel Amado, Jaime Camacho-Mackenzie, Maria Ceballos Mora, Sara Cifuentes-Navarrete, Andrea Donoso-Samper, Manuel A. Ferro, Juan C. Gómez-Cáceres, Sebastián Gómez-Galán, Ana G. Leiva, Juan Lisarazo, Maria G. López-Castaño, Sofía Martínez-Gil, M.J. Montoya, Santiago Niño-Basto, Sergio Andrés Ortigoza-Espitia, Gustavo Páez, Jesús William Ramos-Anaya, María J. Rozo, Juan P. Umana, Andres Motta Amar, Andrés Felipe Barrera Vargas, Javier Dario Maldonado Escalante, German Ricardo Molina Marroquin, and Silvia Alejandra Prada Lievano

Subjects
Global health, Public health, Surgery, Health policy, Hospital mortality, Public aspects of medicine, RA1-1270
Abstract

Summary: Background: Surgical care holds significant importance in healthcare, especially in low and middle-income countries, as at least 50% of the 4.2 million deaths within the initial 30 days following surgery take place in these countries. The Lancet Commission on Global Surgery proposed six indicators to enhance surgical care. In Colombia, studies have been made using secondary data. However, strategies to reduce perioperative mortality have not been implemented. This study aims to describe the fourth indicator, perioperative mortality rate (POMR), with primary data in Colombia. Methods: A multicentre prospective cohort study was conducted across 54 centres (hospitals) in Colombia. Each centre selected a 7-day recruitment period between 05/2022 and 01/2023. Inclusion criteria involved patients over 18 years of age undergoing surgical procedures in operating rooms. Data quality was ensured through a verification guideline and statistical analysis using mixed-effects multilevel modelling with a case mix analysis of mortality by procedure-related, patient-related, and hospital-related conditions. Findings: 3807 patients were included with a median age of 48 (IQR 32–64), 80.3% were classified as ASA I or II, and 27% of the procedures had a low-surgical complexity. Leading procedures were Orthopedics (19.2%) and Gynaecology/Obstetrics (17.7%). According to the Clavien–Dindo scale, postoperative complications were distributed in major complications (11.7%, 10.68–12.76) and any complication (31.6%, 30.09–33.07). POMR stood at 1.9% (1.48–2.37), with elective and emergency surgery mortalities at 0.7% (0.40–1.23) and 3% (2.3–3.89) respectively. Interpretation: The POMR was higher than the ratio reported in previous national studies, even when patients had a low–risk profile and low-complexity procedures. The present research represents significant public health progress with valuable insights for national decision-makers to improve the quality of surgical care. Funding: This work was supported by Universidad del Rosario and Fundación Cardioinfantil-Instituto de Cardiología grant number CTO-057-2021, project-ID IV-FGV017.

Published
2024
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34. Análisis relacional de los perfiles de egreso de los programas en archivística y bibliotecología en América Latina y el Caribe (2021-2022)

Author

Yicel Nayrobis Giraldo Giraldo and José Daniel Moncada Patiño

Subjects
formación bibliotecológica, formación archivística, perfiles de egreso, Bibliography. Library science. Information resources, Bibliography, Z1001-8999
Abstract

El artículo presenta los resultados de un ejercicio de análisis relacional de los perfiles de egreso de los programas en archivística y bibliotecología, realizado en el contexto del Proyecto de Innovación Curricular que adelanta la Escuela Interamericana de Bibliotecología de la Universidad de Antioquia (Colombia). La pregunta estuvo orientada a indagar sobre las características de los perfiles de egreso, en términos de afinidades y diferencias, de los programas en archivística y bibliotecología en América Latina y el Caribe entre 2021 y 2022. Esto implicó una revisión crítica de los programas y sus capacidades para incorporar tendencias y necesidades del mercado laboral. El estudio utilizó el método de investigación documental y consultó la información publicada de los sitios web de 45 programas en archivística y 81 programas en bibliotecología. Los resultados dan cuenta del análisis de los programas considerando las categorías identificadas con sus respectivos enfoques. Como conclusiones, se destaca la ratificación del núcleo duro de las formaciones centrado en la gestión documental para la archivística y en la organización y tratamiento de la información para la bibliotecología, y la existencia de diferencias más que sutiles en los perfiles con base en su adscripción a una facultad o escuela específica.

Published
2025
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41. Massive scalar field perturbations in Weyl black holes

Author

Bécar, Ramón, González, P. A., Moncada, Felipe, and Vásquez, Yerko

Subjects
General Relativity and Quantum Cosmology, High Energy Physics - Theory
Abstract

In this work we consider the propagation of massive scalar fields in the background of Weyl black holes and we mainly study the effect of the scalar field mass in the spectrum of the quasinormal frequencies (QNFs) via the Wentzel-Kramers-Brillouin (WKB) method, and the pseudospectral Chebyshev method. The spectrum of QNFs is described by two families of modes, one of them is the photon sphere and the other one is the de Sitter. Essentially we show, via the WKB method, that the photon sphere modes exhibit an anomalous behaviour of the decay rate of the QNFs, that is, the longest-lived modes are the ones with higher angular number, as well as, there is a critical value of the scalar field mass, beyond which the anomalous behaviour is inverted. Also, we analyze the effect of the scalar field mass on each family of modes, and on their dominance, and we give an estimate value of the scalar field mass where the interchange in the dominance family occurs., Comment: 19 pages, and 12 figures

Published
2023

42. Efficient arsenic removal from water using iron-impregnated low-temperature biochar derived from henequen fibers: performance, mechanism, and LCA analysis

Author

Xu Liao, Raúl Miranda Avilés, Alma Hortensia Serafin Muñoz, Diana Olivia Rocha Amador, Rebeca Yasmin Perez Rodriguez, Jesús Horacio Hernández Anguiano, Carmen Julia Navarro, Xiaoxiao Zha, Daniela Moncada, María de Jesús Puy Alquiza, Pooja Vinod Kshirsagar, and Yanmei Li

Subjects
Arsenic adsorption, CO2 emission, Regeneration, Torrefaction biochar, Water treatment, Medicine, Science
Abstract

Abstract The present study aims to investigate the low-energy consumption and high-efficiency removal of arsenic from aqueous solutions. The designed adsorbent Fe/TBC was synthesized by impregnating iron on torrefaction henequen fibers. Isothermal adsorption experiments indicated maximum adsorption capacities of 7.30 mg/g and 8.98 mg/g for arsenic(V) at 25.0 °C and 40.0 °C, respectively. The interference testing showed that elevated levels of pH, HCO3 − concentration, and humic acid content in the solution could inhibit the adsorption of arsenic by Fe/TBC. Characterization of the adsorbent before and after adsorption using FTIR and SEM–EDS techniques confirmed arsenic adsorption mechanisms, including pore filling, electrostatic interaction, surface complexation, and H-bond adhesion. Column experiments were conducted to treat arsenic-spiked water and natural groundwater, with effective treatment volumes of 550 mL and 8792 mL, respectively. Lastly, the life cycle assessment (LCA) using OpenLCA 2.0.3 software was performed to treat 1 m3 of natural groundwater as the functional unit. The results indicated relatively significant environmental impacts during the Fe/TBC synthesis stage. The global warming potential resulting from the entire life cycle process was determined to be 0.8 kg CO2-eq. The results from batch and column experiments, regeneration studies, and LCA analysis indicate that Fe/TBC could be a promising adsorbent for arsenic(V).

Published
2024
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43. Current Review: Alginate in the Food Applications

Author

Shirin Kazemzadeh Pournaki, Ricardo Santos Aleman, Mehrdad Hasani-Azhdari, Jhunior Marcia, Ajitesh Yadav, and Marvin Moncada

Subjects
alginate, food additive, food agent, food industry, Science
Abstract

Due to global development and increased public awareness of food’s effects on health, demands for innovative and healthy products have risen. Biodegradable and environmentally friendly polymer usage in modern food products is a promising approach to reduce the negative health and environmental effects of synthetic chemicals. Also, desirable features such as flavor, texture, shelf-life, storage condition, water holding capacity, a decrease in water activity, and an oil absorption of fried food have been improved by many polysaccharides. One of the important polymers, which is applied in the food industry, is alginate. Alginates are a safe and widely used compound in various industries, especially the food industry, which has led to innovative methods for for the improvement of this industry. Currently, different applications of alginate in stable emulsions and nano-capsules in food applications are due to the crosslinking properties of alginate with divalent cations, such as calcium ions, which have been studied recently. The main aim of this review is to take a closer look at alginate properties and applications in the food industry.

Published
2024
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44. Prácticas educativas que favorecen la formación en autorregulación del aprendizaje de los estudiantes en Colombia

Author

María Isabel Pinzón Navarro, Carolina Valero Olaya, Jeidy Miranda Hernández, Marisela Becerra Moncada, and Tany Giselle Fernández Guayana

Subjects
estrategias educativas, aprendizaje a lo largo de la vida, ambiente educacional, relación profesor alumno, relación estudiante escuela, History of scholarship and learning. The humanities, AZ20-999, Social sciences (General), H1-99
Abstract

Este artículo presenta los resultados de una investigación educativa cuyo propósito fue comprender la influencia de las prácticas educativas en el proceso autorregulatorio de los estudiantes en Colombia. El enfoque metodológico fue de tipo cualitativo con un alcance descriptivo que buscó detalles sobre el hacer docente y el aprendizaje de aula. La muestra se compone de 137 participantes distribuidos en 90 estudiantes, 24 docentes y 23 padres de familia a quienes se les aplicaron una ficha de caracterización, una entrevista y un grupo focal a lo largo de 9 zonas del país: Garzón (Huila), Fortul (Arauca), Bucaramanga (Santander), Bogotá, Tenjo, Guayabal de Siquima (Cundinamarca), Urabá, Medellín, Rionegro (Antioquia), Ibagué (Tolima), Granada (Meta), Santiago de Cali (Valle del Cauca) y Almaguer (Cauca). Para el análisis de la información se contó con una matriz de triangulación y su posterior ejercicio interpretativo. Los resultados muestran que la práctica docente fomenta en los estudiantes su autonomía y su autocontrol a la hora de aprender, mientras que se ve la necesidad de brindar formación sobre las pautas de monitoreo parental. En ese sentido, se reconoce que la educación en contexto a partir de los juegos, la creatividad y el trabajo en grupo incentivan las habilidades de autorregulación del aprendizaje como la metacognición, el monitoreo, la delegación de tareas, la planeación y proyección de las metas a alcanzar.

Published
2024
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45. A lactate-dependent shift of glycolysis mediates synaptic and cognitive processes in male mice

Author

Ignacio Fernández-Moncada, Gianluca Lavanco, Unai B. Fundazuri, Nasrin Bollmohr, Sarah Mountadem, Tommaso Dalla Tor, Pauline Hachaguer, Francisca Julio-Kalajzic, Doriane Gisquet, Roman Serrat, Luigi Bellocchio, Astrid Cannich, Bérénice Fortunato-Marsol, Yusuke Nasu, Robert E. Campbell, Filippo Drago, Carla Cannizzaro, Guillaume Ferreira, Anne-Karine Bouzier-Sore, Luc Pellerin, Juan P. Bolaños, Gilles Bonvento, L. Felipe Barros, Stephane H. R. Oliet, Aude Panatier, and Giovanni Marsicano

Subjects
Science
Abstract

Abstract Astrocytes control brain activity via both metabolic processes and gliotransmission, but the physiological links between these functions are scantly known. Here we show that endogenous activation of astrocyte type-1 cannabinoid (CB1) receptors determines a shift of glycolysis towards the lactate-dependent production of d-serine, thereby gating synaptic and cognitive functions in male mice. Mutant mice lacking the CB1 receptor gene in astrocytes (GFAP-CB1-KO) are impaired in novel object recognition (NOR) memory. This phenotype is rescued by the gliotransmitter d-serine, by its precursor l-serine, and also by lactate and 3,5-DHBA, an agonist of the lactate receptor HCAR1. Such lactate-dependent effect is abolished when the astrocyte-specific phosphorylated-pathway (PP), which diverts glycolysis towards l-serine synthesis, is blocked. Consistently, lactate and 3,5-DHBA promoted the co-agonist binding site occupancy of CA1 post-synaptic NMDA receptors in hippocampal slices in a PP-dependent manner. Thus, a tight cross-talk between astrocytic energy metabolism and gliotransmission determines synaptic and cognitive processes.

Published
2024
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46. Colombian surgical outcomes study insights on perioperative mortality rate, a main indicator of the lancet commission on global surgery – a prospective cohort study

Author

Pérez Rivera, Carlos J., Lozano-Suárez, Nicolás, Agudelo-Mendoza, Silvia Valentina, Bohórquez-Tarazona, Maria Paz, García-Zambrano, Laura, Lara-Espinosa, Daniela, Polania-Sandoval, Camilo Andres, Rojas-Serrano, Luisa Fernanda, Vargas-Cuéllar, María Paula, Velandia-Sánchez, Alejandro, Cabrera-Rivera, Paulo Andrés, Briceno-Ayala, Leonardo, Cruz-Reyes, Danna, Barrera Carvajal, Juan Guillermo, Cabrera-Vargas, Luis Felipe, Guevara, Oscar, Arce Polania, Laura Cristina, Buendía Barrios, Laura Natalia, Cristina Camargo Areyanes, María Isabel, Casas, Felipe, Alfaro, Valeria Cormane, García-Méndez, Juan P., Guerra, Bayron, Idarraga-Ayala, Sharon V., Abiyomaa, Akram Kadamani, Montoya, Christopher, Mosquera Paz, Manuel Santiago, Pineda, María Alejandra, Pinzón-Luna, Juliana, Bastidas, Isabella Roa, Roman Ortega, Carlos Fernando, Saavedra Henao, Juan D., SanJuan-Arias, Laura Carolina, Barreto, Vanessa, Corso, Julian, Maksoud-Garcia, Mariana, Mateus, Eliana Pineda, Zabaraín, Alejandra Vega, Mantilla-Sylvain, Fabien, Perez, Nicolas, Alzate-Ricaurte, Sergio, Bejarano, Monica, Caicedo Holguin, Isabella, García, Alberto Federico, Sanchez, Stefania Rodriguez, Santos, Felipe Bernal, Jaspe, Carlos Luna, Maria Camila Luna-Jaspe Roa, OLIVERA Bolívar, Maria Paula, Diaz, MariaFernanda Valdivieso, Agudelo, Yuli, Castillo-Aristizábal, Maria Paula, Hoyos Burgos, Juan Pablo, Maria Clara Mendoza Arango, Maria Clara, Gabriel Arroyave, Preciado, Felipe Buitrago, Cardona González, Lina María, Correa-Cote, Juan Camilo, Franco Arias, Karen Lorena, Llano Sierra, Juan Felipe, López, Gustavo, Mancero, Cesar, Parra, Sebastian, Gonzalez, Beatriz Ramirez, Daniela Sierra, Amaya Muñoz, Maria Camila, Blanco-Ramírez, Ashley, Camacho, Paul Anthony, Campillo, Jorge, Carvajal Mejia, Andrea Ximena, María Alejandra González Yamil, Osorno Villegas, Juan Carlos, Eduardo Rubio, Herrera, Santiago Sánchez, Herrera, Sebastian Sanchez, Agudelo, Tatiana, Andrade, Valentina, Pérez, Laura Arango, Ariza-Gutiérrez, Anibal, Jacobo Berrio, Torres, Natalia Cantillo, Chamorro-Rodríguez, Maria Valeria, Conde, Lucia, Feo Lee, Oscar Hernando, González Nieto, María Camila, Ibañez-Pintor, Laura Cecilia, Ochoa, Catalina, Ospina, Juan, Pérez-Ocampo, Juan José, Rojas, Esteban Portilla, Rey, Daniela Saaibi, Serrano, Eduardo, Solorza Velásquez, Sharon Michelle, Toro Cubides, Angélica María, Aguiar, Raúl, Beltrán Rincón, Diego Armando, Figueroa, Juan Sebastian, Figueroa-Casanova, Rafael, Gonzalez Mosos, Maria Fernanda, Marcia Gabriela Gómez, Osorno, Susana, Laura Palacio, Laura, Venegas, Jose, Caicedo Ramírez, Liliana Marcela, Cardona Gomez, Diana Catalina, Alejandro Fernandez Bolaños, Daniel, Fernández-Diago, Adriana, Olave Montaño, Victor David, Pastás, César, Amorocho, Silvia Marcela, Barbosa-Santibañez, Jorge, Baron, Vladimir, Cartagena-Alvarado, Alejandra, Castillo, Maria, Castillo-Florez, Maria Carolina, Dimian Mayorga, Omar David, Delgado-Nieto, Elena Leonor, Fajardo, Ernesto, Gomez Polania, Omar Leonardo, Gonzalez, Tania, Guzman Mesa, Daniel Felipe, Isaza-Restrepo, Andres, Leal, Jaime A., Medina, Camilo, Navarro-Alean, Jorge, Ocampo, Maria Antonia, Oliveros, Guillermo, Ortiz, Maria, Ortiz-Mahecha, Jorge I., Abaunza, Katherine Parra, Pulido Reyes, Felipe Antonio, Rivera-Rincón, Natalia, Carlos Alfonso Rodriguez Pinedo, Sanchez, Lizeth Rodriguez, Romero, Juan Javier, Sabogal Olarte, Juan Carlos, Salgado Tovar, Javier Mauricio, Torres, Guillermo Andrés, Vallejo, Linda, Vargas-Barato, Felipe, Vargas Patiño, Ana María, Villate León, Juan Pablo, Montañez Aldana, Miguel Angel, Norato, Chiara, Borda, Hugo Rojas, Núñez, Miguel Á Romero, Sánchez, Alejandro, López, Jose Támara, Támara P, Jose, Wilmer Fernando Botache Capera, Rojas, Rolando Medina, Juan Torres, Trujillo, Gina Catalina, Cubillos Saavedra, Gabriela Estefanía, Francisco García-Laverde, Naffah Enciso, Jussef Camilo, Betancur, Julian Arango, Cortés-Coronado, Adriana, Susana Sepúlveda Tamayo, Cardenas, Valentina Arboleda, García-Barrero, Luis Guillermo, Jhonatan Enrique Garzón-Galindo, Torres Parada, Lina Fernanda, Quintero, Alejandro Arias, Cano, David, Montoya Quintero, Kevin Fernando, Santiago Nieto Muñoz, Mejía, Paula Saza, Gomez Barrios, Jesus David, Jimeno, María Angélica, Restrepo Hernandez, Ghandi Ignacio, Rodríguez-Sequea, Adrian, Varón Cotes, Juan Carlos, Hanner Enrique Acevedo Reyes, Barandica Bolaño, Claudia Marcela, Sierra-Cote, Maria Camila, Angarita Vargas, Laura Daniela, Báez Ramírez, Alix Yurany, Rodriguez Suarez, Jose Armando, Sánchez, David Leonardo, Sandoval Rangel, Silvia Natalia, Hurtado, Edwin Ulloa, Hernández Almanza, Olga Esther, Martínez Zubiria, Rosalba Inmaculada, Muegues Salas, Angel Alexis, Becerra Cardona, Diego Alexander, Cárdenas Santamaría, Fabio Hernán, Echeverri Castaño, Juan Daniel, Echeverri Uribe, Juan Sebastián, Gaitán Buitrago, María Helena, Galvis Valencia, Luis Felipe, Sabogal, Andrea Henao, López Atehortúa, David Felipe, Molina Uribe, Juan Manuel, Peñate Suárez, Edwin Enrique, Valencia, Heiller Torres, Salazar, Marcela Velásquez, Correa, Catalina, García, Hans, Leal, Juan Hernández, Muñoz Vargas, Paula Tatiana, Bolívar Sáenz, Dínimo José, Caicedo Medina, Camilo Andrés, Garcia Riaño, Camilo Andres, Gonzalez, Stephanye Carrillo, Gómez, Jaime Lorduy, Madrid, Carlos Torres, Villa, Walter Torres, Luengas Orozco, Juan Sebastian, Capriles, Camilo Avendaño, Blanco, Carolina Diaz, Brieva Hoyos, Maria Lucía, Cantillo Moreno, Paola Andrea, Granados Mendoza, Sofía Carolina, Vizcaino Lara, José Dario, Babativa Peñuela, Karla Lizeth, Jiménez Bahamón, Paula Andrea, Maldonado Rico, Jhonier Estiven, Martínez Cortes, Duvan Ernesto, Orjuela Aragón, José Alfredo, Castro Roa, Lizeth Daniela, Gallego, Julieth Sarmiento, Herazo Meza, Marta Maria, Hernández Castillo, Anlly Caterin, Rojas Moncada, Rosa Gabriela, Casanova Bermeo, Lucia Fernanda, Cortés Otero, Oscar Fernando, Pinilla, Nicolás Diaz, Herrera Delgado, Harrison Rene, Macías Segura, Simon Alberto, Muñoz Castrillón, David Ramiro, Nuñez Romero, Luis Ramiro, Polania Andrade, Cesar Andrés, Valdez Toro, Hector Alejandro, Cardozo Parrado, Ana María, Moros, Jose Gonzalo, Nieto, Paula Andrea, Patarroyo, Jorge Mario, Perilla Martínez, Jose Luis, Gutierrez, María del Pilar Torres, Benito Flórez, Erika Johana, Gómez, Mariana Vergel, Robayo Rodriguez, Diana Ximena, Salcedo Miranda, Diego Fernando, Triviño Cortés, Maria Alejandra, Sastre, William Baquero, Bonett, Juan Sebastian, Cortes, Eliana, Duque, Pedro Fernando, Gutierrez, Carlos Enrique, Echeverry, Piedad, Motta Amar, Andrés Felipe, Torres, Lorena, Bautista, Jeremias Carvajal, Figueroa Bohórquez, David Mauricio, Quintana, Manuel Latorre, Olivera Briñez, Diego Fernando, Quintero Contreras, Marcel Leonardo, Gamboa, Raúl Vera, Zapata, Mariana Arias, Benavides Caipe, Cristhian Daniel, Betancur Acevedo, Luisa Fernanda, Zuluaga, Valentina Botero, Figueroa-Espinoza, Vanessa, Londoño-Patiño, Arbey Leandro, Moncayo-Gonzalez, Santiago, Puerta Suárez, Laura Sofia, Vargas-Arboleda, Paula Camila, Gonzalez Cera, Lisbet Sofia, Toro, Katerine Henao, de Jesus Ortiz Pino, Leobardo, Vasquez Vargas, Sergio Andrés, Zuluaga, Lency Naranjo, Garzón, Jaime Chamorro, Franco Rodriguez, Adriana Paola, Acosta Alape, Nataly Johana, Arbelaez Mariño, Andrés Felipe, Mora Herrera, Juan José, Ayala Muñoz, Javier Felipe, Camacho Pinzon, Yeiny Carina, Cárdenas Chacón, José Francisco, Peña Arenas, Liliana Andrea, Rodriguez Camargo, Gustavo Adolfo, Sánchez Arango, Carlos Alberto, Bolaños Ñañez, Daniel Mauricio, Garcés-Palacios, Diana Sofía, Ñañez Pantoja, María Alejandra, Ortega-Valencia, Omar Alejandro, Gamboa Bernal, María Paula, Lotero Gómez, Juan David, Martínez-Gutiérrez, Juan Sebastián, Morales-Gómez, Daniel, Pardo-Jiménez, Lina, Fonseca Galindo, Leon Miguel, Garcia Ramirez, Angélica Maria, Saurith Ramirez, Juan David, Barrero Montoya, Ivan Ricardo, Espitia, Santiago Cadena, Rojas, Salomé Pallares, Zapata Berrio, Laura Camila, Benavides Rodríguez, Diana Andrea, Gonzalez, Juan Carlos, Idarraga, Sharon Valentina, Márquez Rodríguez, Óscar Eduardo, Marrugo Prieto, Ivi Yohana, Soledad Machado, Laura Vanessa, Luna, Rubén, Pulido, Nicolás Navarro, Nuñez Ricardo, Federico Javier, García López, Andrea Elena, Luque, Fernando Girón, Jaramillo, Nasly Patiño, Pedraza Alonso, Néstor Fabian, Acuña Acuña Rivera JY, Javier Yecid, Guevara Cruz, Oscar Alexander, Martínez Buitrago, Juan Sebastián, Oviedo, Nathalia Montoya, Santafe Guerrero, Marcia Roxana, Chaves Cortés, Juanita Carolina, Rincón Tello, Francisco Mauricio, Bejarano Ramirez, Diana Fernanda, Cortes Mejia, Nicolas Andres, Garzon Mesa, Camilo Ernesto, Pabon, Alejandra Moncada, Triviño Alvarez, Diego Rymel, Torres, Alonso Vera, Cote Martinez, Maria Alejandra, Machado Rodriguez, Juan Manuel, Martinez, Gonzalo Nuñez, Osuna, Laura Naranjo, Roldan Garay, Andres Felipe, Amado, Daniel, Camacho-Mackenzie, Jaime, Maria Ceballos Mora, Cifuentes-Navarrete, Sara, Donoso-Samper, Andrea, Ferro, Manuel A., Gómez-Cáceres, Juan C., Gómez-Galán, Sebastián, Leiva, Ana G., Lisarazo, Juan, López-Castaño, Maria G., Martínez-Gil, Sofía, Montoya, M.J., Niño-Basto, Santiago, Ortigoza-Espitia, Sergio Andrés, Páez, Gustavo, Ramos-Anaya, Jesús William, Rozo, María J., Umana, Juan P., Amar, Andres Motta, Barrera Vargas, Andrés Felipe, Maldonado Escalante, Javier Dario, Molina Marroquin, German Ricardo, Prada Lievano, Silvia Alejandra, Vargas-Cuellar, Maria Paula, Polanía-Sandoval, Camilo A., and Cabrera-Rivera, Paulo A.

Published
2024
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47. Exploring Handgrip Strength as a Cross-cultural Correlate of Body Composition and Upper Body Strength in Older Adults from Costa Rica and Kansas.

Author

Moncada-Jiménez, José, Dicker, Eva, Chacón-Araya, Yamileth, Peralta-Brenes, Mariana, Briceño-Torres, José, Villarreal-Ángeles, Mario, Salazar-Villanea, Mónica, Vidoni, Eric, Burns, Jeffery, and Johnson, David

Subjects
Adiposity, Aged, Bone density, Costa Rica, Hand strength, Kansas, Humans, Aged, Hand Strength, Costa Rica, Kansas, Cross-Cultural Comparison, Body Composition, Muscle Strength
Abstract

Sarcopenia and disability in older adults are often characterized by body composition measurements; however, the gold standard of body composition measurement, dual-energy X-ray absorptiometry (DEXA), is expensive to acquire and maintain, making its use in low and middle income countries (LMIC) it out-of-reach in developing nations. Because these LMIC will bear a disproportionate amount of chronic disease burden due to global aging trends, it is important that reliable, low-cost surrogates need to be developed. Handgrip strength (HGS) is a reliable measure of disability in older adults but has not been used widely in diverse populations. This study compared HGS to multiple measurements of body composition in older adults from the US (Kansas) and a middle-income country (Costa Rica) to test if HGS is a cross-culturally appropriate predictive measure that yields reliable estimates across developed and developing nations. Percent body fat (%BF), lean tissue mass index (LTMI), appendicular lean soft tissue index (ALSTI), body fat mass index (BFMI), bone mineral density (BMD), and HGS were measured in older Costa Ricans (n = 78) and Kansans (n = 100). HGS predicted lean arm mass with equal accuracy for both samples (p ≤ 0.05 for all groups), indicating that it is a reliable, low-cost and widely available estimate of upper body lean muscle mass. Older adults from Costa Rica showed different body composition overall and HGS than controls from Kansas. Handgrip operates equivalently in the US and Mesoamerica and is a valid estimate of lean arm muscle mass as derived by the more expensive DEXA.

Published
2023

48. Molecular gas in super spiral galaxies

Author

Lisenfeld, Ute, Ogle, Patrick M., Appleton, Philip N., Jarrett, Thomas H., and Moncada-Cuadri, Blanca M.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

At the highest stellar masses (log(\mstar) $\gtrsim$ 11.5 \msun), only a small fraction of galaxies are disk-like and actively star-forming objects. These so-called `super spirals' are ideal objects to better understand how galaxy evolution proceeds and to extend our knowledge about the relation between stars and gas to a higher stellar mass regime. We present new CO(1-0) data for a sample of 46 super spirals and for 18 slightly lower-mass (log(\mstar) $>$ 11.0 \msun ) galaxies with broad HI lines -- HI fast-rotators (HI-FRs). We analyze their molecular gas mass, derived from CO, in relation to their star formation rate (SFR) and stellar mass, and compare the results to values and scaling relations derived from lower-mass galaxies. We confirm that super spirals follow the same star-forming main sequence (SFMS) as lower-mass galaxies. We find that they possess abundant molecular gas, which lies above the extrapolation of the scaling relation with stellar mass derived from lower-mass galaxies, but within the relation between \mmol/\mstar and the distance to the SFMS. The molecular gas depletion time, \taudep = \mmol/SFR, is higher than for lower-mass galaxies on the SFMS (\taudep = 9.30 $\pm$ 0.03, compared to \taudep = 9.00 $\pm$ 0.02 for the comparison sample) and seems to continue an increasing trend with stellar mass. HI-FR galaxies have an atomic-to-molecular gas mass ratio that is in agreement with that of lower-mass galaxies, indicating that the conversion from the atomic to molecular gas proceeds in a similar way. We conclude that the availability of molecular gas is a crucial factor to enable star formation to continue and that, if gas is present, quenching is not a necessary destiny for high-mass galaxies. The difference in gas depletion time suggests that the properties of the molecular gas at high stellar masses are less favorable for star formation., Comment: 28 pages, accepted for publication in Astronomy & Astrophysics

Published
2023
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50. Observatorio de corrupción en el deporte (Colombia)

Author

Hernández Londoño, Mauricio, primary, Restrepo Moncada, Sebastián, additional, Saenz Macana, Angélica María, additional, Muñoz Bedoya, Juan Felipe, additional, Posada López, Zonaika, additional, and Castillo Abad, Nicolás Gonzalo Alejandro, additional

Published
2024
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