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3. Neighbors affect vocal behavior of tropical wrens: a multispeaker density-manipulation experiment.

Author

Sánchez, Natalie V, Vargas-Valverde, Isabel, Espejo-Uribe, María José, and Mennill, Daniel J

Subjects
*TROPICAL dry forests, *ANIMAL behavior, *BIRDSONGS, *SOCIAL context, *SONGBIRDS, *WRENS
Abstract

For territorial animals, the behavior of conspecific neighbors sets the social context of communication. Despite numerous investigations of vocalizations related to territory defense and mate attraction, the effect of neighbor density on animal vocal behavior has received little attention, particularly in tropical animals and animals where both sexes produce complex acoustic signals. In this study, we used an innovative multispeaker playback experiment to manipulate the apparent density of neighbors in rufous-and-white wrens, Thryophilus rufalbus , living in Costa Rica's tropical dry forest. In this tropical songbird, both males and females defend year-round territories and sing complex, learned songs for territory defense. We recorded the singing behavior of 24 subjects (12 pairs), and then we used an array of 6 loudspeakers to simulate the presence of 6 new territorial neighbors (3 simulated pairs) outside each subject pair's breeding territory. The stimuli persisted for 3 consecutive days, with both male and female songs broadcast at a natural rate from dawn to dusk. We found that the mean male song rate increased by almost 50% in response to the simulated increase in local density. Females showed less frequent song-type switching rates following the simulated increase in local density, although it was a marginal increase. These findings reveal that male and female songbirds' vocal behavior varies with the local density of territorial neighbors. We conclude that birds are sensitive to acoustic signals of conspecific density arising from sounds beyond their territory boundaries, and that they use this public information to guide their vocal behavior. [ABSTRACT FROM AUTHOR]

Published
2024
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4. Redes de interacción colibrí-planta en un área abierta con robledales en el Cerro de La Muerte, Costa Rica.

Author

Vargas Valverde, Isabel, Campos Alvarado, Adriana, Niño Rodríguez, Nelsy, Simón, Randy, Piñarez Espejo, Yolanda M. G., Hernández Rivera, Álvaro, Avalos, Gerardo, Vargas Valverde, Isabel, Campos Alvarado, Adriana, Niño Rodríguez, Nelsy, Simón, Randy, Piñarez Espejo, Yolanda M. G., Hernández Rivera, Álvaro, and Avalos, Gerardo

Abstract

Las interacciones planta-animal pueden estar asociadas con relaciones mutualistas moldeadas por la coevolución. Las relaciones de los colibríes con las plantas pueden ser complejas, lo que resulta en estrategias de diferente grado de especialización. Analizamos la red de polinización del ensamble de colibrí y plantas según el grado de especialización en un área abierta en el Cerro de la Muerte, Talamanca, Costa Rica. Recolectamos polen de 43 colibríes de cuatro especies en enero de 2022: Eugenes spectabilis, Panterpe insignis, Colibri cyanotus y Selasphorus flammula. Estos colibríes mostraron 12 tipos de polen, siendo el de Bomarea hirsuta el más frecuente. Descubrimos que la red de interacción colibrí-planta tiende hacia la especialización (conectividad = 0.43).El valor ponderado de anidamiento ponderado fue de 0.66, lo que indica que algunas especies de colibríes estaban más asociadas con algunos grupos de plantas que otros colibríes. Es crítico continuar monitoreando la red para detectar cambios espaciales y temporales dependiendo de la disponibilidad del recurso néctar, y determinar cómo el cambio climático, la pérdida de hábitat y la introducción de especies exóticas afectan las redes de polinización., Plant-animal interactions may be associated with mutualistic relationships shaped by coevolution. Hummingbird relationships with plants can be complex, resulting in strategies of varying degrees of specialization. We analyzed the pollination network of the hummingbird and plant ensemble of Cerro de la Muerte, Talamanca, Costa Rica, according to the degree of specialization. We collected pollen from 43 hummingbirds of four species in January 2022: Eugenes spectabilis, Panterpe insignis, Colibri cyanotus, and Selasphorus flammula. These hummingbirds showed 12 pollen types, with Bomarea hirsuta being the most frequent. We found that the hummingbird-plant interaction network leaned towards specialization (connectivity = 0.43). The weighted nesting value was 0.66, indicating that some ummingbird species were more associated with some plant groups than other hummingbirds. It is critical to continue monitoring the network to detect spatial and temporal changes depending on the availability of the nectar resource, and to determine how climate change, habitat loss, and the introduction of exotic species affect pollination networks.

Published
2022

9. Prevalencia lesional y medición de factores de riesgo asociados al esguince de tobillo en jugadores de baloncesto en formación

Author

Conesa Valverde, Isabel María, Vera García, Francisco José, and Departamentos de la UMH::Ciencias del Deporte

Subjects
Valoración, Esguince de tobillo, Prevención, Baloncesto, 79 -Deportes [CDU], Factores de riesgo
Abstract

Una de las principales preocupaciones de cualquier cuerpo técnico en deportes de equipo como el baloncesto es cómo reducir el número de lesiones, ya que estas afectan a nivel individual y al nivel competitivo de todo el equipo. Generalmente, la prevención de lesiones es uno de los objetivos principales de la preparación física en los equipos de la cantera, pero la falta de tiempo y de recursos impiden que se realicen programas de prevención adecuados. Por esto, el primer objetivo de este Trabajo Final de Máster fue realizar una descripción de las lesiones de los jugadores y las jugadoras de categorías Infantil, Cadete y Junior (93 jugadores de 14,7 ± 1,5, años) de las tres últimas temporadas (antes de la covid-19: temporada 2018/2019; y durante la covid-19: temporadas 2019/2020 y 2020/2021) mediante un cuestionario online a través de la herramienta Google Forms. Al encontrarse el esguince de tobillo como la lesión más prevalente en las temporadas 2018/2019 (23 de 54 lesiones totales) y en las temporadas 2019/2020 y 2020/2021 (18 de 43 lesiones totales), el segundo objetivo fue medir factores de riesgo del esguince de tobillo en los equipos de categoría Junior femenino y masculino (34 jugadores de 16,4  0,85 años), ya que fue la categoría con la que trabajé en mi estancia allí. Los factores analizados fueron la estabilidad del tobillo, el rango de movimiento de dorsiflexión del tobillo y la potencia del tren inferior con altas demandas de equilibrio, utilizando para ello el Y-balance test, el dorsiflexión lunge test y el triple hop test. De los datos obtenidos destacar que la incidencia lesional fue mayor durante la temporada pre-covid-19 (chicos: 2,08 lesiones por cada 1000 horas; chicas: 3,22 lesiones por cada 1000 horas) que durante las temporadas del covid-19 (chicos: 1,04 lesiones por cada 1000 horas; chicas: 1,24 lesiones por cada 1000 horas), siendo mayor en chicas que en chicos. A diferencia de lo encontrado en la literatura, la mayor parte de las lesiones se produjeron durante el entrenamiento (74% de las lesiones en la temporada pre- covid-19 y el 89% en las temporadas del covid-19) y no durante la competición. En relación con el esguince de tobillo, la incidencia en chicos y chicas fue de 0,72 y 1,55 lesiones por cada 1000 horas en la temporada pre- covid-19 y 0,55 y 0,66 lesiones por cada 1000 horas en la temporada del covid-19, respectivamente. En el Y-balance test los jugadores con historia de lesión de tobillo obtuvieron peores resultados (84,1 ± 7,5 cm en pierna dominante y 81,9 ± 9,9 cm en pierna no dominante) que los jugadores sin historia de lesión (87,1 ± 10,3 cm en pierna dominante y 90,3 ± 14,6 cm en pierna no dominante), al igual que en el triple hop donde los jugadores con lesión tenían asimetrías entre una pierna y otra de 8,6% ± 7,3 y los jugadores sin lesión 4,5% ± 3,3. Del mismo modo, en el dorsiflexión lunge test se observó que el 70% de los deportistas con historia de lesión obtuvieron valores cercanos o por encima de los valores considerados de riesgo de lesión, mientras que en el grupo de deportistas sin historia de lesión el porcentaje fue del 59%. En general, la información obtenida nos permitió conocer mejor el historial de lesiones de los deportistas y el déficit en algunas variables de condición física asociadas a las lesiones, facilitando la toma de decisiones para reducir la incidencia de lesiones en el club.

Published
2021

10. ¿Ese Tucán es de Costa Rica?

Author

Rodríguez Barrantes, Ruth, Vargas Valverde, Isabel, Rodríguez Barrantes, Ruth, and Vargas Valverde, Isabel

Published
2021

20. List of Contributors

Author

Abia, Rocio, primary, Aguila, Marcia Barbosa, additional, Alcaraz, Miguel, additional, Aldini, Giancarlo, additional, Alonso, Alvaro, additional, de Cienfuegos, Gerardo Álvarez, additional, Amaral, Joana S., additional, Amirante, Paolo, additional, Amores, Victoria, additional, Amoruso, Angela, additional, Andrade, Paula B., additional, Andreadou, I., additional, Angioni, Alberto, additional, Ankan, Aysun, additional, Antunes, Lusânia Maria Greggi, additional, Apetrei, C., additional, Aramendía, María A., additional, Arbones-Mainar, Jose Miguel, additional, Arias, José L., additional, Arienti, Giuseppe, additional, Armenta, Sergio, additional, Assy, Nimmer, additional, Audi, Nama’a, additional, Azadmard-Damirchi, Sodeif, additional, Azqueta, Amaia, additional, Badiu, Diana, additional, Ballabio, Davide, additional, Balesteros, Manoela Ruchiga, additional, Ballesteros, Evaristo, additional, Barbosa, Décio Sabbatini, additional, Barbouti, Alexandra, additional, Bardelli, Claudio, additional, Batanero, Eva, additional, Baumann, Leslie, additional, Benavente-García, Obdulio, additional, Becker, Peter, additional, Bendini, Alessandra, additional, Benedetti, Simona, additional, Beretta, Giangiacomo, additional, Bermudez, Beatriz, additional, Bes-Rastrollo, Maira, additional, Bianchi, Maria de Lourdes Pires, additional, Bisignano, Giuseppe, additional, Blanco, Santos, additional, Boskou, George, additional, Bracci, Tania, additional, Bravo, Laura, additional, Brenes, Manuel, additional, Brescia, Maria Antonietta, additional, Briasoulis, Evangelos, additional, Brunelleschi, Sandra, additional, Bucci, Remo, additional, Buckland, Genevieve, additional, Buratti, Susanna, additional, Buróníó, María I., additional, Busconi, Matteo, additional, Cabello-Moruno, Rosana, additional, Caboni, Pierluigi, additional, Cabras, Paolo, additional, Caggia, Cinzia, additional, Camuesco, Desiree, additional, Cancelas, Jesús, additional, Capasso, Giovambattista, additional, Capote, F. Priego, additional, Cárdenas, Soledad, additional, Carluccio, Maria Annunziata, additional, Carrasco-Pancorbo, Alegria, additional, Carnuccio, Rosa, additional, Carrera, María Pilar, additional, Carretero, Antonio Segura, additional, Casado, Francisco Javier, additional, Castillo, Julián, additional, Caturla, Nuria, additional, Cerretani, Lorenzo, additional, Chillemi, Rosa, additional, Chiou, Antonia, additional, Choi, Shin-Geon, additional, Christian, Mildred S., additional, Chondrogianni, Niki, additional, Churruca, Itziar, additional, Cirugeda, Miguel de la Guardia, additional, de Castro, Antonio, additional, De Caterina, Raffaele, additional, Cavaliere, Chiara, additional, Chinou, Ioanna, additional, Clodoveo, Maria Lisa, additional, Coimbra, Manuel A., additional, Conte, Lanfranco S., additional, Cosio, M. Stella, additional, Covas, Maria Isabel, additional, Coxam, Véronique, additional, Cunha, Sara C., additional, Curiel, Jose Antonio, additional, D’Angelo, Stefania, additional, Daniel, Hannelore, additional, Davicco, Marie-Jeanne, additional, De Bonis, Maria Luigia, additional, De Castro, M.D. Luque, additional, de la Higuera, Manuel, additional, de la Puerta, Cristina, additional, de las Rivas, Blanca, additional, de la Torre, Rafael, additional, Delcuratolo, Debora, additional, De Leonardis, Antonella, additional, De Lucia, Maria, additional, de Oliveira, Marcone Augusto Leal, additional, de Pablo, Manuel A., additional, De Roos, Baukje, additional, De Saja, Jose A., additional, De Stefano, Daniela, additional, Di Bella, Giuseppa, additional, Dichi, Isaias, additional, Diener, Robert M., additional, Dirsch, Verena M., additional, d’Ischia, Marco, additional, Driss, Fathi, additional, Dugo, Giacomo, additional, Dutta, Paresh C., additional, Ebizuk, Yutaka, additional, El-Benna, Jamel, additional, Esteban, Francisco J., additional, Estepa, Amparo, additional, da Silva, Joaquim C.G. Esteves, additional, Fabiani, Roberto, additional, Facino, Roberto Maffei, additional, Faria, M.A., additional, Faria, Miguel, additional, Fernandes, José O., additional, Fernandez-Gutierrez, Alberto, additional, Fernández-Montesinos, Rafael, additional, Fernández-Navarro, Mónica, additional, Fernández-Quintela, Alfredo, additional, Faria, Adriana Ferreira, additional, Fitó, Montserrat, additional, Fogher, Corrado, additional, Foglia, Patrizia, additional, Franconi, Flavia, additional, Fregapane, Giuseppe, additional, Fujimoto, Kazuma, additional, Fujise, Takehiro, additional, Furneri, Pio Maria, additional, Gallardo, Visitación, additional, Galletti, Patrizia, additional, Galvez, Julio, additional, Garcia, Aranzazu, additional, García, I.M., additional, García-Luna, Pedro P., additional, Garrido-Fernández, Antonio, additional, Garrigues, Salvador, additional, Geelen, Math J.H., additional, Geladopoulos, Taxiarchis, additional, Giamarellos-Bourboulis, Evangelos J., additional, Frenich, Antonia Garrido, additional, Galaris, Dimitrios, additional, Gilani, Anwarul Hassan, additional, Gill, Chris I.R., additional, Giovannini, Claudio, additional, Glatzle, Jörg, additional, Gnoni, Gabriele V., additional, Gomes, Tommaso, additional, Gómez-Rico, Aurora, additional, Gonos, Efstathios S., additional, Gonzalez, Carlos A., additional, Goya, Luis, additional, Grosovski, Maria, additional, Gutiérrez, Guillermo Rodriguez, additional, Hartmann, Marie-Andrée, additional, Hashim, Yumi Z., additional, Hu, Xiuli, additional, Ieri, Francesca, additional, Iliodromitis, Efstathios K., additional, Iwakiri, Ryuichi, additional, Juan, M. Emilia, additional, Kalogeropoulos, Nick, additional, Kalua, Curtis, additional, Khan, Arif-ullah, additional, Khymenets, Olha, additional, Kosti, Rena, additional, Kotsiou, Antonia, additional, Kremastinos, Dimitrios Th., additional, Lafont, Fernando, additional, Laganà, Aldo, additional, Landete, Jose Maria, additional, La Pera, Lara, additional, Lapucci, Chiara, additional, Lavermicocca, Paola, additional, Léger, Claude Louis, additional, Lehotay, Steven J., additional, Leone, Alessandro, additional, Liu, Jun, additional, Turco, Vincenzo Lo, additional, Lopez, Sergio, additional, de Cerain, Adela Lopez, additional, de Felipe, Felix Lopez, additional, López-Feria, Silvia, additional, de la Serrana, Herminia López-Garcia, additional, López-López, Antonio, additional, López-Martinez, Maria Carmen, additional, Lopez-Miranda, Jose, additional, La Torre, Giovanna Loredana, additional, Lucas, Ricardo, additional, Lupiáñez, José A., additional, Luque, Rafael, additional, Macciola, Vincenzo, additional, Madar, Zecharia, additional, Mafra, Isabel, additional, Magrì, Andrea D., additional, Magrì, Antonio L., additional, Maiuri, Maria Chiara, additional, Malaisse, Willy J., additional, Mañas, Mariano, additional, Mandarim-de-Lacerda, Carlos Alberto, additional, Manna, Caterina, additional, Mannina, Luisa, additional, Mannino, Saverio, additional, Marinas, Alberto, additional, Marinas, Jose M., additional, Marini, Federico, additional, Markaki, Panagiota, additional, Martín, M. Angeles, additional, Martínez, María Alba, additional, Martinez-Gonzalez, Miguel A., additional, Martínez-Gracia, María Victoria, additional, Martinez-Martos, José Manuel, additional, Martínez-Victoria, Emilio, additional, Masella, Roberta, additional, Massaro, Marika, additional, Mastovska, Katerina, additional, Mateos, Raquel, additional, Mazzoni, Michela, additional, Menéndez-Menéndez, Javier, additional, Medina, Eduardo, additional, Medina, Jose M., additional, Micol, Vicente, additional, Mikros, Emmanuel, additional, Mitjavila, Maria Teresa, additional, Montaño, Alfredo, additional, Morales, Juan Carlos, additional, Morcillo, Sonsoles, additional, Moreno, Juan José, additional, Moreno, Paola, additional, Moret, Sabrina, additional, Moros, Javier, additional, Morozzi, Guido, additional, Motilva, Maria-Jose, additional, Muñoz, Rosario, additional, Muriana, Francisco J.G., additional, Napoli, Daniela, additional, Napolitano, Alessandra, additional, Nassar, Faris, additional, Nasti, Raffaella, additional, Natali, Francesco, additional, Natalini, Paolo, additional, Nunes, Cláudia S., additional, Nychas, George, additional, Oliveira, M. Beatriz P.P., additional, Orihara, Yutaka, additional, Ortega, Almudena, additional, Ortega-García, Francisca, additional, Osada, Jesús, additional, Özdemir, Durmuş, additional, Öztürk, Betül, additional, Pacheco, Yolanda M., additional, Paice, Alistair G., additional, Palmerini, Carlo A., additional, Panagiotakos, Demosthenes, additional, Panagou, E.Z., additional, Panzella, Lucia, additional, Papoti, V.T., additional, Paradiso, Vito Michele, additional, Pariente, José Antonio, additional, Patel, Vinood B., additional, Peinado, M. Ángeles, additional, Pellicanò, Teresa Maria, additional, Peragon, Juan, additional, Perez-Jimenez, Francisco, additional, Perez-Martinez, Pablo, additional, Perona, Javier Sanchez, additional, Piperno, Anna, additional, Planas, Joana M., additional, Pollicino, Donatella, additional, Polzonetti, Valeria, additional, Populin, Tiziana, additional, Portillo, Maria P., additional, Pozo, David, additional, Prenzler, Paul, additional, Prieto, Pablo G., additional, Pucciarelli, Stefania, additional, Puel, Caroline, additional, Puertollano, Elena, additional, Puertollano, María A., additional, Quesada-Granados, Jose Javier, additional, Rajendram, Rajkumar, additional, Ramírez-Expósito, María Jesús, additional, Ramos, Sonia, additional, Ramos-Martos, Natividad, additional, Randazzo, Cinzia L., additional, Rando, Rossana, additional, Reiter, Russel J., additional, Rejano, Luis, additional, Rhee, Hae-Ik, additional, Robards, Kevin, additional, Rodriguez, Hector, additional, Rodríguez-Cabezas, Maria Elena, additional, Rodríguez-Manero, Moises, additional, Rodríguez-Méndez, María L., additional, Rodríguez, Rosalía, additional, Rodriguez-Rodriguez, Rosalia, additional, Romani, Annalisa, additional, Romero, Concepción, additional, Romero, Maria-Paz, additional, Romero-Gonzalez, Roberto, additional, Rose, Martin, additional, Rossi, Mauro, additional, Rotondi, Annalisa, additional, Rowland, Ian R., additional, Ruiz, Adolfina, additional, Ruiz-Gutiérrez, Valentina, additional, Russo, Francesco, additional, Ryan, Danielle, additional, Sabatini, Nadia, additional, Sacco, Antonio, additional, Sahan, Yasemin, additional, Saitta, Marcello, additional, Salvador, Maria Desamparados, additional, Samperi, Roberto, additional, Samaniego-Sánchez, Cristina, additional, Sánchez, Antonio Higinio, additional, Sánchez-Navarro, Maria Rosa, additional, Sancho, Verónica, additional, Santos-González, Mónica, additional, Saraiva, Jorge A., additional, Scampicchio, Matteo, additional, Scazzocchio, Beatrice, additional, Schmitt, Christoph A., additional, Schwartz, Betty, additional, Sciuto, Sebastiano, additional, Scoditti, Egeria, additional, Seabra, Rosa M., additional, Sebastiani, Luca, additional, Segre, Anna Laura, additional, Segura, Antonio, additional, Servili, Maurizio, additional, Shiraishi, Ryosuke, additional, Siculella, Luisa, additional, Simão, Andréa Colado, additional, Sindona, Giovanni, additional, Sivakumar, Ganapathy, additional, Skaltsounis, Alexios-Leandros, additional, Smith, Amos B., additional, Spatafora, Carmela, additional, Sperry, Jeffrey B., additional, Soares, Mario J., additional, Soriguer, Federico, additional, Srirajaskanthan, Rajaventhan, additional, Stitia, Naïm, additional, Tabernero, Arantxa, additional, Tagarelli, Antonio, additional, Tai, Fuju, additional, Tamborrino, Antonia, additional, Tassou, C.C., additional, Tesseromatis, Christine, additional, Todeschini, Roberto, additional, Torrecilla, Jose S., additional, Trikib, Saïda, additional, Tringali, Corrado, additional, Tsakiris, Ioannis N., additional, Tsatsakis, Aristidis M., additional, Tsimidou, M.Z., additional, Uccella, Nicola A., additional, Urbano, Francisco J., additional, Valcarcel, Miguel, additional, Valencia-Serrano, Félix, additional, Valentão, Patrícia, additional, Valverde, Isabel, additional, Varela, Lourdes M., additional, Varì, Rosaria, additional, Simas Vaz, Fernando Antonio, additional, Vettorazzi, Ariane, additional, Vichi, Stefania, additional, Vidal, José Luis Martínez, additional, Villalba, José M., additional, Villalba, Mayte, additional, Villanueva-Peñacarrillo, María L., additional, Vincenzetti, Silvia, additional, Vita, Alberto, additional, Vlahov, Giovanna, additional, Wang, Wei, additional, Weisberg, Edmund, additional, Wenzel, Uwe, additional, Won, Se-Ra, additional, Wu, Bin, additional, Yago, María Dolores, additional, Zabaras, Dimitrios, additional, Zappia, Vincenzo, additional, Zarzuelo, Antonio, additional, and Zhang, Luyong, additional

Published
2010
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23. Redes de interacción colibrí-planta en un área abierta con robledales en el Cerro de La Muerte, Costa Rica.

Author

Vargas-Valverde, Isabel, Campos-Alvarado, Adriana, Niño-Rodríguez, Nelsy, Simón, Randy, Piñanez Espejo, Yolanda M. G., Hernández-Rivera, Álvaro, and Avalos, Gerardo

Subjects
ANIMAL-plant relationships, INTRODUCED species, HUMMINGBIRDS, POLLEN, CLIMATE change, POLLINATION, POLLINATORS
Abstract

Copyright of Zeledonia is the property of Asociacion Ornitologica de Costa Rica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

27. Plan de autoprotección del I.E.S. Sierra del Segura (Elche de la Sierra)

Author

Paco Valverde, Isabel and Pérez Sedano, Rafael

Subjects
Institución Educativa, Prevención, Emergencia, 6 - Ciencias aplicadas::61 - Medicina::614 - Higiene y salud pública. Contaminación. Prevención de accidentes. Enfermería [CDU]
Abstract

La Ley 31/1995, de 8 de noviembre, de Prevención de Riesgos Laborales tiene por objeto promover la seguridad y la salud de los trabajadores mediante la aplicación de medidas y el desarrollo de las actividades necesarias para la prevención de riesgos derivados del trabajo. El objetivo del presente Trabajo Fin de Máster es poder prevenir y controlar los riesgos sobre las personas y los bienes del I.E.S Sierra del Segura y dar respuesta adecuada a las posibles situaciones de emergencia. El proyecto se centra en la elaboración del Plan de Autoprotección que consta de seis apartados. Se pretende su pronta implantación que tiene como objeto ser una herramienta dentro de la organización para establecer un grado de eficacia en la actuación frente a emergencias. Todo ello se ha llevado a cabo siguiendo el Real Decreto 393/2007, de 23 de marzo, por el que se aprueba la Norma Básica de Autoprotección de los centros y establecimientos y dependencias dedicados a actividades que puedan dar origen a situaciones de emergencia. Se hace de vital importancia realizar una gestión integral de la seguridad y salud de los trabajadores y alumnado del centro. Atendiendo a la lógica del trabajo, la especialidad escogida corresponde a la de Seguridad. Durante el periodo de un año lectivo se trabajó conjuntamente con la Coordinadora de Prevención de Riesgos Laborales del centro para recabar toda la información necesaria para la consecución del presente proyecto.

Published
2019

29. Insulinotropic action of alpha-D-glucose pentaacetate: functional aspects

Author

Malaisse, Willy J., Sanchez-Soto, Carmen, Larrieta, M. Elena, Hiriart, Marcia, Jijakli, Hassan, Vinambres, Concepcion, Villanueva-Penacarrillo, Maria L., Valverde, Isabel, Kirk, Ole, Kadiata, Marcel M., and Sener, Abdullah

Subjects
Insulin -- Physiological aspects, Glucose -- Physiological aspects, Islands of Langerhans -- Research, Biological sciences
Abstract

Research shows that biochemical alpha-D-glucose pentaacetate's insulinotropic function works via an alternative physiological pathway to that involving glucose induction. Experiments designed to investigate insulinotropic action of 1.7 millimolar alpha-D-glucose pentaacetate using rat pancreatic islets are described. Secretory responses to hexose esters are reported.

Published
1997

32. Insulinotropic action of glutamic acid dimethyl ester

Author

Sener, Abdullah, Conget, Ignacio, Rasschaert, Joanne, Leclercq-Meyer, Viviane, Villanueva-Penacarrillo, Maria L., Valverde, Isabel, and Malaisse, Willy J.

Subjects
Glutamate -- Physiological aspects, Insulin -- Physiological aspects, Glibenclamide -- Physiological aspects, Biological sciences
Abstract

An analysis of the insulinotropic activities of glutamic acid dimethyl ester (GME) shows that GME enhances insulin production and helps overcome the beta-cell abnormalities in metabolism, phosphorylation and D-glucose transport. GME induces changes in 86Rb outflow, improves 45Ca outflow in L-leucine-treated islet cells and reveals that glibenclamide has insulinotropic potential. The overall O2 uptake gain constitutes the equilibrium between GME oxidation and GME effects on endogeneous fatty acid catabolism.

Published
1994

33. Respiratory, ionic, and functional effects of succinate esters in pancreatic islets

Author

Malaisse, Willy J., Rasschaert, Joanne, Villanueva-Penacarrillo, Maria L., and Valverde, Isabel

Subjects
Islands of Langerhans -- Physiological aspects, Succinic acid -- Analysis, Esters -- Analysis, Calcium channels -- Research, Biological sciences
Abstract

New, powerful insulin secretagogues are seen in the form of the methyl esters of succinic acid. The incubation of rat islets takes place regardless of the occurrence of D-glucose, and reveals the rise in O2 uptake due to the secretagogues. The islets reveal biosynthetic activity induced by the secretagogues, with a favoured influence on the preparation of proinsulin. Extracellular Ca2+ is missing in the prelabeling of perifused islets which yield 45Ca efflux hindered by the secretagogues. The total uptake of 45Ca is increased and the outflow of 45Ca in islets which are incubated or perifused when extracellular Ca2+ occurs is biphasically induced.

Published
1993

39. Prospecção e defesa da paisagem urbana do Algarve (1965-70): a arquitetura tradicional e a preservação do património urbano na proposta da DGSU

Author

Ribeiro, Vítor, Costa, Miguel Reimão, Aguiar, José, and Valverde, Isabel

Subjects
Paisagem urbana, Arquitetura tradicional, Dieta mediterrânica, Algarve, Planeamento em áreas urbanas consolidadas, Prospecção e inventariação do património
Abstract

No contexto da sucessiva redefinição do conceito de património, a arquitetura vernácula tenderá a assumir a sua importância a partir da segunda metade do século passado, alcançando estatuto próprio na Carta sobre o Património Construído Vernáculo de 1999. Em Portugal, adquirem particular relevância os trabalhos desenvolvidos em diferentes âmbitos, desde a antropologia à arquitetura, passando pela agronomia e pela geografia, que culminariam em diferentes sínteses sobre o tema, alargadas a todo o território nacional continental. Essa abordagem só no final dos anos 60 viria a ser ensaiada, à escala da região do Algarve, no pioneiro trabalho desenvolvido pela equipa dirigida pelo Arq.º Cabeça Padrão, no âmbito da Secção de Defesa e Recuperação da Paisagem Urbana da Direcção-Geral dos Serviços de Urbanização (DGSU), sob o título “Prospecção, Preservação e Recuperação de Elementos Urbanísticos e Arquitectónicos Notáveis, em Áreas Urbanas e Marginais Viárias, na Região do Algarve”, constituindo um de três estudos complementares a integrar o Plano Regional do Algarve. Dos 49 volumes projectados a partir de 1965, abrangendo 47 aglomerados urbanos de dimensões muito diversas e maioritariamente localizados na faixa litoral da região, apenas de cerca de metade se conhece hoje o paradeiro. Mas se bem que rapidamente tenham sido remetidos - até muito recentemente -, ao esquecimento dos arquivos, e pese embora o seu carácter datado, constituem um conjunto documental singular de inegável importância, pela metodologia e propostas que encerram, no contexto da evolução histórica dos conceitos e práticas de valorização e conservação patrimonial (em particular no que se refere ao património arquitectónico urbano de carácter vernáculo) e de planeamento e intervenção em áreas urbanas consolidadas. Importância reforçada pelo extenso levantamento fotográfico produzido e onde se fixou um momento histórico charneira documentando o início de profundas transformações - que se acentuariam nas décadas subsequentes -, entre outras razões, por força da emergente importância do turismo. Com a presente comunicação pretende-se resgatar do esquecimento um trabalho verdadeiramente pioneiro (mesmo em termos mundiais) no que se refere à preservação e recuperação da paisagem urbana do Algarve, avaliando a sua metodologia e abordagem particular no âmbito das intervenções em espaço urbano e retomando um processo de análise e caracterização da arquitetura tradicional da região a partir do valioso espólio fotográfico constante neste estudo.

Published
2016

42. Friedel-crafts alkylation of toluene as a parallel reaction in propylene dimerization catalyzed by nickel β-diimine complex/easc in homogeneous phase

Author

Valverde, Isabel Vicente, Bernardo-Gusmão, Kátia, Souza, Michele Oberson de, and Souza, Roberto Fernando de

Subjects
Alquilação, Reação de Friedel-Crafts, Oligomerização, Nickel, ß-diimine ligands, Friedel-Crafts alkylation, Propylene oligomerization
Abstract

A oligomerização do propeno foi realizada utilizando o complexo dibromo-bis(N,N’- difenilpentano-2,4-diimina)niquel(II) como precursor catalítico combinado ao sesquicloreto de etilalumínio (Al2Et3Cl3, EASC) como co-catalisador. A 10 ºC, usando o tolueno como solvente, altas frequências de rotação foram obtidas (até 57000 h–1) com alta seletividade em produtos C6 (até > 99%) e seletividade moderada em C6 linear (até 29%). Observou-se que nas condições experimentais empregadas o propeno reagiu com tolueno por reação de Friedel-Crafts. O aumento da concentração de precursor catalítico, mantendo constante a relação precursor/co-catalisador, teve por efeito de aumentar a selectividade para os produtos de oligomerização em relação aos produtos de alquilação por reação de Friedel-Crafts. Propylene oligomerization was performed using dibromo-bis(N,N’-diphenylpentane-2,4- diimine)nickel(II) complex as catalytic precursor combined with ethyl aluminum sesquichloride (Al2Et3Cl3, EASC) as co-catalyst. At 10 ºC, using toluene as solvent, high turnover frequencies (up to 57,000 h–1) with high selectivities to C6 products (up to > 99%) and moderate linear C6 selectivity (up to 29%) were obtained. Under our reaction conditions propylene reacted with toluene through Friedel-Crafts reaction. Increasing the concentration of catalyst precursor keeping the nickel complex/co-catalyst ratio constant increased the selectivity of the oligomerization products vs. Friedel-Craft products.

Published
2015

43. Alexandre Dumas au Salon de 1859, romantisme et modernité

Author

Valverde, Isabel

Abstract

L’article situe le compte rendu du Salon de 1859 qu’Alexandre Dumas publia dans L’Indépendance belge dans le cadre de la réception de l’art contemporain en France, et l’analyse par rapport aux discours et aux pratiques de la critique d’art de la deuxième moitié du XIXe siècle, aux prises avec l’émergence du nouveau paradigme de la « modernité »., The article examines the review of the 1859 Salon that Alexandre Dumas wrote for L’Indépendance belge within the framework of the reception of contemporary art in France and examines it in relation to the discourses and the practices of art criticism in the second half of the 19th century, in the context of the emergence of the new paradigm of modernity.

Published
2014
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46. Synthesis of hectorites and saponites with microwaves and their application in catalysis and composites

Author

Vicente Valverde, Isabel, Salagre Carnero, Pilar, Cesteros Fernández, Yolanda, Universitat Rovira i Virgili. Departament de Química Física i Inorgànica, Departament de Química Física i Inorgànica, and Universitat Rovira i Virgili.

Subjects
Argiles Clays, Hidrogenació d'òxid d'estirè Styrene oxide hydrogenation, Saponita Saponite, Catàlisi heterogènia Heterogeneous catalysis, Microones Microwaves, 2- feniletanol 2-Phenylethanol, Hectorita Hectorite, Níquel Nickel, 546 - Química inorgànica, Composites
Abstract

Las esmectitas como hectorita o saponita, son silicatos laminares. Tienen múltiples aplicaciones (catálisis, nanocomposites, adsorbentes) e interesa tener un material reproducible y sin impurezas. Los métodos convencionales de síntesis comportan tratamientos largos o a altas temperaturas. La introducción del microondas puede disminuir ambos. El objetivo de esta tesis es estudiar la síntesis de hectorita y saponita con microondas y su aplicación como soportes catalíticos de Ni en la hidrogenación de óxido de estireno para la obtención de 2-feniletanol (componente principal de la esencia de rosas) y en la preparación de composites con poliuretano. Se obtienen hectoritas y saponitas reproducibles. Cuando se emplean como soportes de catalizadores de Ni se obtienen conversión y selectividad total hacia el 2-feniletanol. Cuando se utilizan las arcillas obtenidas en preparación de composites sus propiedades son comparables a los de la bibliografía., Smectites like hectorite or saponite, are phyllosilicates. They can be applied for many purposes (catalysis, nanocomposites, adsorbents) but a reproducible, pure material is necessary. Classical methods of synthesis involve long synthesis times at high temperatures. The use of microwaves can be an interesting alternative. The scope of this thesis is to study the synthesis of hectorites and saponites with microwaves and their application as supports of Ni catalysts in the hydrogenation of styrene oxide to obtain 2-phenylethanol (main component of rose oil) and in the preparation of composites with polyurethane. We obtained reproducible hectorites and saponites. When used as supports of Ni catalysts we obtained total conversion and selectivity to 2-phenyethanol. When obtained clays were used in the preparation of polyurethane composites, their properties were comparables to those of the bibliography

Published
2011

48. Speech rhythm alterations in Spanish-speaking individuals with Alzheimer's disease.

Author

Martínez-Sánchez, Francisco, Meilán, Juan J. G., Vera-Ferrandiz, Juan Antonio, Carro, Juan, Pujante-Valverde, Isabel M., Ivanova, Olga, Carcavilla, Nuria, Martínez-Sánchez, Francisco, and Meilán, Juan J G

Subjects
ALZHEIMER'S disease, HISPANIC Americans, DIAGNOSIS of dementia, SPEECH disorders, TASK performance, DISEASES, ALZHEIMER'S disease diagnosis, SPEECH disorder diagnosis, ALGORITHMS, CYCLES, LANGUAGE & languages, NEUROPSYCHOLOGICAL tests, READING, SIGNAL processing, SPEECH, SPEECH evaluation, EDUCATIONAL attainment, COMPUTER-aided diagnosis
Abstract

Rhythm is the speech property related to the temporal organization of sounds. Considerable evidence is now available for suggesting that dementia of Alzheimer’s type is associated with impairments in speech rhythm. The aim of this study is to assess the use of an automatic computerized system for measuring speech rhythm characteristics in an oral reading task performed by 45 patients with Alzheimer’s disease (AD) compared with those same characteristics among 82 healthy older adults without a diagnosis of dementia, and matched by age, sex and cultural background. Ranges of rhythmic-metric and clinical measurements were applied. The results show rhythmic differences between the groups, with higher variability of syllabic intervals in AD patients. Signal processing algorithms applied to oral reading recordings prove to be capable of differentiating between AD patients and older adults without dementia with an accuracy of 87% (specificity 81.7%, sensitivity 82.2%), based on the standard deviation of the duration of syllabic intervals. Experimental results show that the syllabic variability measurements extracted from the speech signal can be used to distinguish between older adults without a diagnosis of dementia and those with AD, and may be useful as a tool for the objective study and quantification of speech deficits in AD. [ABSTRACT FROM PUBLISHER]

Published
2017
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