Mostrando publicaciones 87-106 de 3133

  • A smart crop water stress index-based io T solution for precision irrigation of wine grape 

    Fuentes-Peñailillo, Fernando; Ortega-Farías, Samuel; Acevedo-Opazo, Cesar; Rivera, Marco; Araya-Alman, Miguel (2024)
    The Scholander-type pressure chamber to measure midday stem water potential (MSWP) has been widely used to schedule irrigation in commercial vineyards. However, the limited number of sites that can be evaluated using the ...

  • A snapshot of the litter problem along the Viña del Mar - Concón coastal strip, Valparaíso region, Chile 

    Rangel-Buitrago, Nelson; Barría-Herrera, José; Vergara-Cortés, Hernán; Contreras-López, Manuel; Agredano-Martín, Roberto (2020)
    Along the Viña del Mar - Concón coastal strip 11,894 litter items were collected, and grouped into 48 different categories (11 litter typologies). The average litter abundance was 0.25 items/m2, plastic items, and cigarette ...

  • A soil water indicator for a dynamic model of crop and soil water interaction 

    Duque-Marín, E.; Rojas-Palma, Alejandro; Carrasco-Benavides, Marcos ORCID (2023)
    Water scarcity is a critical issue in agriculture, and the development of reliable methods for determining soil water content is crucial for effective water management. This study proposes a novel, theoretical, non-physiological ...

  • A source of isotopically light organic carbon in a low-pH anoxic marine zone 

    Vargas, Cristian A.; Cantarero, Sebastian I.; Sepúlveda, Julio; Galán, Alexander; De Pol-Holz, Ricardo; Walker, Brett; Schneider, Wolfgang; Farías, Laura; Cornejo D´Ottone, Marcela; Walker, Jennifer; Xu, Xiaomei; Salisbury, Joe (2021)
    Geochemical and stable isotope measurements in the anoxic marine zone (AMZ) off northern Chile during periods of contrasting oceanographic conditions indicate that microbial processes mediating sulfur and nitrogen cycling ...

  • A striking new species of Dolichomitus Smith, 1877 (Hymenoptera: Ichneumonidae; Pimplinae) from South America 

    Di Giovanni, Filippo; Galvão Pádua, Diego; Araujo-Oliveira, Rodrigo; Doria Santos, Alvaro; Eerikki Sääksjärvi, Ilari (2021)
    Background: Dolichomitus Smith, 1877 is a genus of Darwin wasps characterised by their large bodies and long ovipositors, that includes more than 75 species worldwide, 20 of which occur in the Neotropical Region. Due to ...

  • A study of the cis–trans isomerization preference of N-alkylated peptides containing phosphorus in the side chain and backbone 

    De la Torre, Alexander F.; Ali, Akbar; Concepción, Odette; Montero-Alejo, Ana L.; Muñiz, Francisco M.; Jiménez, Claudio A.; Belmar, Julio; Velázquez-Libera, José Luis; Hernández-Rodríguez, Erix W.; Caballero, Julio (2019)
    The current work provides a study on the cis–trans isomerization behaviour of N-alkylated peptides decorated with phosphonate ester groups. A Ugi four-component reaction was chosen for the synthesis of N-alkylated peptides, ...

  • A systematic review of intervention programs that produced changes in speed and explosive strength in youth footballers 

    Cossio-Bolaños, Marco Antonio; Vidal-Espinoza, Rubén; Urra-Albornoz, Camilo; Leite Portella, D.; Vega-Novoa, Sebastián; Mendez-Cornejo, Jorge; Fuentes-López, José D.; Gómez-Campos, Rossana (2021)
    A soccer player should possess a reasonable level of different skills and abilities, so the playing position, level of training, style of play, physical and physiological demands can influence his performance. The objective ...

  • A systematic review on the effects of Epichloë fungal endophytes on drought tolerance in cool-season grasses 

    Decunta, Facundo A.; Pérez, Luis; Malinowski, Dariusz P.; Molina-Montenegro, Marco A.; Gundel, Pedro E. (2021)
    Symptomless fungal endophytes in the genus Epichloë are repeatedly mentioned to increase tolerance of cool-season grasses to a wide range of environmental stress factors, mainly drought. However, the generality of this ...

  • A tradeoff between fitness‐related traits mask facilitation in a semiarid ecosystem 

    Molina-Montenegro, Marco A.; Baldelomar, Mariela; Atala, Cristian; Torres-Díaz, Cristian (2020)
    In stressful environments, a nurse plant can ameliorate harsh biotic and abiotic conditions for another plant species that grows within its canopy. This canopy can act as a barrier for herbivores, reducing damage to the ...

  • A two patch model for the population dynamics of mosquito-borne diseases 

    Gómez-Hernández, E. A.; Ibargüen-Mondragón, E. (2019)
    In this work, a model on the interaction dynamics of mosquitoes causing vector-borne diseases is formulated, without consider the human population as dynamic variables and including mobility from eulerian approach, in which ...

  • A VLC channel model for underground mining environments with scattering and shadowing 

    Palacios-Játiva, Pablo; Azurdia-Meza, Cesar A.; Sánchez, Iván; Seguel, Fabian; Zabala-Blanco, David; Dehghan Firoozabadi, Ali; Gutiérrez, Carlos A.; Soto, Ismael (2020)
    Underground mining is an industry that preserves the miners' safety and efficiency in their work using wireless communication systems as a tool. In addition to communication links characterized by radio frequency signals, ...

  • A VO2peak prediction model in older adults' patients with Parkinson's disease 

    Vásquez-Gómez, Jaime A.; Cifuentes-Amigo, Armando; Castillo Retamal, Marcelo; Zamunér, Antonio (2023)
    Introduction: Cardiopulmonary function is compromised in people with Parkinson's Disease (PD) and might be related with mortality in advanced stages of the disease. Therefore, estimating the peak oxygen uptake (VO2peak) ...

  • A-Survey: identification and classification of fingerprints via the extreme learning machine algorithm 

    Zabala-Blanco, David; Martínez-Pereira, Diego; Flores-Calero, Marco; Datta, Jayanta; Dehghan Firoozabadi, Ali (2023)
    The fingerprint comes to be the most popular and utilized biometric for identifying persons owing to its bio-invariant characteristic, precision, as well as easy acquisition. A sub-system of an identification system is the ...

  • Abandono docente en américa latina: revisión de la literatura 

    González Escobar, Mary L.; Silva-Peña, Ilich; Precht Gandarillas, Andrea ORCID; Kelchtermans, Geert (2020)
    La cantidad de docentes que deciden abandonar el aula antes de cumplir cinco años de experiencia es una preocupación creciente a nivel internacional. Para contribuir a la discusión, este estudio realiza una revisión ...

  • Abbreviated score to assess adherence to the 2018 WCRF/AICR cancer prevention recommendations and risk of cancer in the UK biobank 

    Malcomson, Fiona C.; Parra‑Soto, Solange; Ho, Frederick; Celis-Morales, Carlos; Sharp, Linda; Mathers, John (2024)
    Background: The World Cancer Research Fund (WCRF)/American Institute for Cancer Research (AICR) Cancer Prevention Recommendations are lifestyle-based guidelines which aim to reduce cancer risk. This study investigated, ...

  • ABCB1/4 gallbladder cancer risk variants identified in India also show strong effects in Chileans 

    Boekstegers, Felix; Marcelain, Katherine; Barahona-Ponce, Carol; Baez Benavides, Pablo F.; Müller, Bettina; De Toro, Gonzalo; Retamales, Javier; Barajas, Olga; Ahumada, Monica; Morales, Erik; Rojas, Armando ORCID; Sanhueza, Verónica; Loader, Denisse; Rivera, María T.; Gutiérrez, Lorena; Bernal, Giuliano; Ortega, Alejandro; Montalvo, Domingo; Portiño, Sergio; Bertrán, María E.; Gabler, F.; Spencer, Loreto; Olloquequi, Jordi; González-Silos, Rosa; Fischer, Christine; Scherer, Dominique; Jenab, Mazda; Aleksandrova, Krasimira; Katzke, Verena; Weiderpass, Elisabete; Moradi, Tahereh; Fischer, Krista; Bossers, Willem; Brenner, Hermann; Hveem, Kristian; Eklund, Niina; Völker, Uwe; Waldenberger, Melanie; Fuentes-Guajardo, Macarena; González-José, Rolando; Bedoya, Gabriel; Bortolini, María C.; Canizales, Samuel; Gallo, Carla; Ruiz-Linares, Andres; Rothhammer, Francisco; Lorenzo-Bermejo, Justo (2020)
    Background: The first large-scale genome-wide association study of gallbladder cancer (GBC) recently identified and validated three susceptibility variants in the ABCB1 and ABCB4 genes for individuals of Indian descent. ...

  • Abordaje de la disfunción física en la formación inicial de profesionales de kinesiología/fisioterapia 

    Escobar-Cabello, Máximo; Cárcamo Vásquez, Héctor (2020)
    El ensayo identifica los factores estructurales del poder gubernamental que enfrentan las personas con disfunción física PDF). Se integra al análisis la formación tradicional que reciben profesionales de la kinesiología/ ...

  • Abordaje psicológico del COVID-19: una revisión narrativa de la experiencia latinoamericana 

    Scholten, Hernán; Quezada-Scholz, Vanetza; Salas, Gonzalo ORCID; Barria-Asenjo, Nicol; Rojas-Jara, Claudio; Molina, Rodrigo; García, José E.; Jorquera, María T.J.; Marinero-Heredia, Arturo; Zambrano, Alba; Gómez-Muzzio, Esteban; Cheroni-Felitto, Ariadna; Caycho, Tomás; Reyes-Gallardo, Teresa; Pinochet-Mendoza, Nicolás; Binde, Pitágoras J.; Uribe-Muñoz, Jamadier E.; Bernal-Estupiñan, Johana A.; Somarriva, Francisco (2020)
    Ante la rápida expansión del nuevo coronavirus (COVID-19) en todo el planeta, este artículo presenta un conjunto de propuestas elaboradas por psicólogas y psicólogos de América Latina que buscan abordar este fenómeno desde ...

  • Academic engagement in preservice teachers: motivational variables for a chilean sample 

    Valenzuela, Jorge; Muñoz, Carla; Frenay, Mariane; Devos, Christelle; Marfull-Jensen, Marisol; Precht Gandarillas, Andrea ORCID; Silva-Peña, Ilich; Oliva, María A. (2019)
    Este estudio cuantitativo examina la relación entre diversas variables motivacionales y el compromiso académico en futuros docentes. Los participantes correspondieron a futuros profesores (n=764) de nueve universidades ...

  • Academic networks of critical social psychology in Brazil: an analysis of the impact and the intellectual roots 

    Millán, Juan D.; Cudina, Jean N.; Ossa, Julio C.; Vega-Arce, Maribel ORCID; Scholten, Hernán; Salas, Gonzalo ORCID (2022)
    This study aims to reconstruct the landscape of critical social psychology in Brazil and discuss the academic production networks that are developing in this field. Therefore, it analyzed a sample of 384 articles in the ...