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Mostrando publicaciones 3223-3242 de 3247
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What can insects tell us about the use of pesticides? the detection and quantification of chlorpyrifos via QuEChERS and HEADSPACE-SPME methods using GC/MS/MS
(2024)The global use of pesticides, exceeding 4 million tons annually, poses substantial threats to public health and the environment. Numerous studies emphasize the correlation between pesticide exposure, genotoxicity, and ...
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What constitutes a ‘classroom problem’ for today's teacher?: an exploratory study
(2023)Teachers face situations that are difficult to solve, which affect their practices in the classroom. Teachers´ability to face problematic situations been related to educators' adaptive and metacognitive capacity. This study ...
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What dimensions of risk perception are associated with avoidance of buying processed foods with warning labels?
(2020)Nutritional Warning Labels (NWLs) inform consumers about processed foods that exceed critical nutrient levels activating the risk perception in consumers. However, this information is limited. The objective was to identify ...
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What hides Chile’s electricity mix data: a data science perspective
(2022)In the context of decarbonization and fossil fuel independence, Chile has a great task ahead. The most relevant is to become carbon neutral by 2050 by replacing fossil fuels with clean energy sources, where, besides ...
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What if the cold days return? epigenetic mechanisms in plants to cold tolerance
(2021)Low temperatures are one of the most critical environmental conditions that negatively affect the growth, development, and geographic distribution of plants. Exposure to low temperatures results in a suit of physiological, ...
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What is post-COVID-19 syndrome? Definition and update
(2022)Este trabajo aborda el origen y el desarrollo del síndrome pos-COVID-19, el cual consiste en la persistencia a través del tiempo de diferentes síntomas como consecuencia de la infección por SARS-CoV-2. A partir de una ...
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What is the influence of randomisation sequence generation and allocation concealment on treatment effects of physical therapy trials? A meta-epidemiological study
(2015)Objective: To determine if adequacy of randomisation and allocation concealment is associated with changes in effect sizes (ES) when comparing physical therapy (PT) trials with and without these methodological characteristics. ...
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What learning opportunities does the Chilean primary education curriculum offer to train in sustainability?
(2022)Education is a fundamental tool to make a country's society equitable, just, and respectful of the environment. As primary education is compulsory for a country's population, it allows building knowledge and skills to ...
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Who are the potential consumers of organic fruits and vegetables in Central Chile? A CHAID approach
(2015)La demanda por frutas y verduras (F&V) orgánicas está creciendo alrededor del mundo, creando oportunidades de mercado para los países en desarrollo como principales proveedores. Sin embargo, la mayoría de los países en ...
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WHODAS 2.0 as a measure of severity of illness: results of a FLDA analysis
(2018)WHODAS 2.0 is the standard measure of disability promoted by World Health Organization whereas Clinical Global Impression (CGI) is a widely used scale for determining severity of mental illness. Although a close relationship ...
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Wine quality classification using physicochemical properties along with extreme learning machines
(2023)Chilean wine is one of the most consumed in the global market due to its excellent quality and wide variety of grape crops throughout the country, with Chile being the largest exporter of wine in the southern hemisphere. ...
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Wing shape variation between terrestrial and coastal populations of the invasive box tree moth, Cydalima perspectalis, in Croatia
(2023)The box tree moth (Cydalima perspectalis Walker, 1859; Lepidoptera: Crambidae) is an invasive species naturally distributed in Asia. The caterpillars in all developmental stages cause damage through defoliation of plants, ...
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Work ability assessment and its relationship with cardiovascular autonomic profile in postural orthostatic tachycardia syndrome
(2020)Postural orthostatic tachycardia syndrome (POTS) negatively impacts quality of life. The excessive increase in cardiac sympathetic modulation during standing, which characterizes POTS patients, leads to many symptoms and ...
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Work-based physical exercise benefits on NCCDs chilean employees’ mood and emotions: a preliminary study
(2020)A protective work environment should account both for employees’ health and for reducing psychosocial risk. Physical exercise during the workday could be a tool to improve working performance and reduce sickness-related ...
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Workshop on non-routine problem solving for students aged 8 to 9: a case study
(2023)[Objective] This article describes heuristics used by 8 and 9 year-old students to solve four non-routine problems that promote the development of arithmetic thinking from two perspectives: number distribution under a ...
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Writer verification based on simple graphemes and extreme learning machine approaches
Mora, Marco
; ; ; ; Barrientos, Ricardo ; ; (2020)
Traditional literature presents complex biometric sources, descriptors, and classifiers to solve the writer's verification problem. The simple graphemes have been studied recently considering classifiers such as multilayer ...
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X-MassFP: a platform with focus on pattern research for mass spectrometry fingerprint recognition
(2021)Pathogens are infectious microorganisms that lodge in a host and are responsible for causing diseases. In many cases, the detection of pathogens is expensive in resources and time. In this way, mass spectrometry is combined ...
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Xeloda oral, trastuzumab, and pertuzumab combined drug therapy reduced cervical lymphadenopathy and dermal involvement in patient with recurrent breast cancer: case report
(2020)We report the case of a 42-year-old woman who was diagnosed with breast cancer that recurred 3 years later, with supraclavicular lymphadenopathy and dermal involvement. The main drug used in the therapy was trastuzumab; ...