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Mostrando publicaciones 4565-4584 de 5127
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Spatial co-occurrence patterns of benthic microbial assemblage in response to trace metals in the Atacama desert coastline
(2023)Taxonomic and functional microbial communities may respond differently to anthropogenic coastal impacts, but ecological quality monitoring assessments using environmental DNA and RNA (eDNA/eRNA) in response to pollution ...
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Spatial distribution of dengue in Ecuador during 1994–2018 using geographic information systems (GIS) – implications public health and travel medicine
(2020)Background: After serious epidemics of chikungunya (CHIKV) and Zika (ZIKV) in the Americas, dengue (DENV) has reemerged in most countries. We estimated the incidence rates and evolution of DENV cases in Ecuador from 1994 ...
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Spatial variability of production and quality in table grapes ‘flame seedless’ growing on a flat terrain and slope site
(2021)(1) Background: Precision agriculture has been used mostly to study spatial variability in vineyards for winemaking. Nevertheless, there is little available information on the impacts of its use on table grape vineyards ...
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Spatiotemporal distribution of key pelagic microbes in a seasonal oxygen-deficient coastal upwelling system of the Eastern South Pacific Ocean
(2020)The strong seasonal variability in physical-chemical conditions of the Eastern South Pacific Ocean creates an ideal setting to study spatiotemporal distribution of key marine microbial communities. We herein report a nearly ...
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Speaker counting based on a novel hive shaped nested microphone array by WPT and 2D adaptive SRP algorithms in near-field scenarios
(2023)Speech processing algorithms, especially sound source localization (SSL), speech enhancement, and speaker tracking are considered to be the main fields in this application. Most speech processing algorithms require knowing ...
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Speaker counting by scattered microphone array based on DOA and eigenvalue estimations in adverse environments
(2023)In this paper, a smart subband system for speaker counting is proposed by scattered microphone array (SMA) and using direction of arrival (DOA) estimation with adaptive eigenvalue decomposition (AED). Firstly, the recorded ...
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Spectral reflectance modeling by wavelength selection: Studying the scope for blueberry physiological breeding under contrasting water supply and heat conditions
; ; ; ; ; ; Poblete-Echeverría, Carlos
; ; ; (2019)
To overcome the environmental changes occurring now and predicted for the future, it is essential that fruit breeders develop cultivars with better physiological performance. During the last few decades, high-throughput ...
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Spent coffee grounds applied as a top-dressing or incorporated into the soil can improve plant growth while reducing slug herbivory
(2022)Between 8 and 15 million tons of spent coffee grounds (SCG) are produced as global waste each year. To reduce waste to landfill, SCG are proposed as a carbon and nutrient source for degraded soils. SCG contain caffeine and ...
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Spinning black holes for generalized scalar tensor theories in three dimensions
(2020)We consider a general class of scalar tensor theories in three dimensions whose action contains up to second-order derivatives of the scalar field with coupling functions that only depend on the standard kinetic term of ...
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Stability analysis of a self-cycling fermentation model with state-dependent impulse times
Cordova-Lepe, Fernando; ; (2014)
A self-cycling fermenter is a batch fermenter subject to recurrent emptyings of liquid volume followed by the refilling withnew fresh substrate. This article construc ts a modified model of self-cycling fermenter, which ...
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Stability and bifurcation in the circular restricted (N + 2) -body problem in the sphere S2 with logarithmic potential
(2023)In this paper we study part of the dynamics of a circular restricted -body problem on the sphere and considering the logarithmic potential, where primaries remain in a ring type configuration (identical masses placed at ...
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Stability in post-seasonal hematological profiles in response to high-competitive match-play loads within elite top-level European soccer players: Implications from a pilot study
(2018)Introduction: The stability of hematological status indices is a key determinant of optimal sport performance. The capacity to monitor hematological behaviors of elite soccer players may better explain the stresses placed ...
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Stand structure, regeneration and seed dispersal patterns of nothofagus glauca (hualo) in central Chile
(2020)Growing interest in functional silviculture is promoting new approaches to the study of seed dispersal and regeneration, two of the key processes that determine the structure and dynamics of plant populations. Nothofagus ...
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State-dependent TMS of inferior frontal and parietal cortices highlights integration of grip configuration and functional goals during action recognition
(2020)Understanding the object-directed actions of conspecifics not only implies recognition of the object (e.g., a pen) and processing of the motor components (e.g., grip configuration), but also identification of the functional ...
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State-dependent tms over prefrontal cortex disrupts fear-memory reconsolidation and prevents the return of fear
(2020)Erasing maladaptive memories has been a challenge for years. A way to change fear memories is to target the process of reconsolidation, during which a retrieved memory transiently returns to a labile state, amenable to ...
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Static earth pressures on a pile supported excavation in Santiago gravel
(2019)Los pilotes de hormigón anclados en múltiples niveles son el método más común para sostener excavaciones profundas en grava. Su diseño estático se basa en principios de equilibrio límite, aunque estos procedimientos se ...
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Statins and portal hypertension: A new pharmacological challenge
; ; Rojas, Armando (2012)
Portal hypertension is a hemodynamic abnormality that involves a high risk of disability as well as a reduced life expectancy in patients with cirrhosis. Progress in the knowledge of pathophysiology of portal hypertension ...
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Statistical graphs in natural and social sciences textbooks in Chile
(2023)Background: Currently, statistical graphics are an interdisciplinary resource for the development of various activities, such as mathematics, natural sciences and history, geography, and social sciences, being essential ...
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Statistical tables in primary education textbooks of Peru
(2022)In recent years, the literature shows an increase in research analyzing statistical representation of data in textbooks, but in the Peruvian context is still scarce. Therefore, this research aims to analyze activities on ...
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Stealth Ellis wormholes in Horndeski theories
(2023)In this work we are revisiting the well studied Ellis wormhole solution in a Horndeski theory motivated from the Kaluza-Klein compactification procedure of the more fundamental higher dimensional Lovelock gravity. We show ...