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Mostrando publicaciones 81-100 de 5004
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A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae)
(2013)A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae). Vihualpenia nom. nov. is proposed as a replacement name for Hualpenia Mundaca, Parra & Vargas, 2013 (Lepidoptera, Gracillariidae), in ...
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A review of convolutional neural network applied to fruit image processing
; Mora, Marco
; ; Barrientos, Ricardo ; Fredes, Claudio ; (2020)
Agriculture has always been an important economic and social sector for humans. Fruit production is especially essential, with a great demand from all households. Therefore, the use of innovative technologies is of vital ...
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A seed-borne endophyte mediates plant drought responses and intergenerational effects on seed characteristics
(2024)Global warming is expected to increase drought severity in diverse environments, impacting plant performance. Plants acclimate to drought by mechanisms like stomatal closure and osmotic adjustment. Maternally inherited ...
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"A significant impact on our democracy": chilean media audiences' claims for dignity
(2024)Chile’s largest social uprising in 30 years began in October 2019. Protests erupted throughout the country, inspired by a widespread belief that the state and powerful institutional actors, such as the media, had undermined ...
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A simple Gause‐type predator–prey model considering social predation
; ; Rojas, Alejandro (2019)
The consumer–resource relationships are among the most fundamental of all ecological relationships and have been the focus of ecology since its beginnings. Usually are described by nonlinear differential equation systems, ...
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A simple stability analysis for a mathematical model of migration due to noise and resources
(2022)This research studies a metapopulation model where each patch is considered a form of fragmentation of the environment produced by the spatio-temporal variability of anthropogenic noise. A deterministic mathematical model ...
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A simultaneous blow-up problem arising in tumor modeling
(2019)Although macrophages are part of the human immune system, it has been remarkably observed in laboratory experiments that decreasing its number can slow down the tumor progression. We analyze through a recently mathematical ...
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A six-minute walk test: oxygen uptake and distance predicted
(2022)Background: Maximum oxygen consumption is an indicator of cardiorespiratory fitness. Aim: e purpose was, first, torelate and compare the VO2max as the dependent variable with the estimated distance ...
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A six-minute walking test: maximum oxygen consumption in physical education students
(2018)The Six-Minute Walking Test (SMWT) was completed just in few times in apparently healthy young individuals and university students, while the maximal volume of oxygen consumption (VO2max) prediction has not been taken into ...
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A smart crop water stress index-based io T solution for precision irrigation of wine grape
(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 ...
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A snapshot of the litter problem along the Viña del Mar - Concón coastal strip, Valparaíso region, Chile
(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 ...
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A soil water indicator for a dynamic model of crop and soil water interaction
; ; Carrasco-Benavides, Marcos (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 ...
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A source of isotopically light organic carbon in a low-pH anoxic marine zone
(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 ...
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A striking new species of Dolichomitus Smith, 1877 (Hymenoptera: Ichneumonidae; Pimplinae) from South America
(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 ...
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A study of the cis–trans isomerization preference of N-alkylated peptides containing phosphorus in the side chain and backbone
(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, ...
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A systematic review of intervention programs that produced changes in speed and explosive strength in youth footballers
(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 ...
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A systematic review on the effects of Epichloë fungal endophytes on drought tolerance in cool-season grasses
(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 ...
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A tradeoff between fitness‐related traits mask facilitation in a semiarid ecosystem
(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 ...
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A two patch model for the population dynamics of mosquito-borne diseases
(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 ...
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A VLC channel model for underground mining environments with scattering and shadowing
(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, ...