Listar Artículos de revista - Aldizkari artikuluak por título
Mostrando ítems 5272-5291 de 5919
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Subsampling OFDM-based ultrasonic data communication through metallic channels for monitoring of cargo containers
An enhanced ultrasonic communication system based on piezoelectric transducers for monitoring of goods in cargo containers is presented. The proposed system consists of several sensors placed inside the container, whose ... -
Substance use disorder and lifetime suicidal behaviour: a scoping review
Background: Suicidal behaviours are prevalent in substance use disorder (SUD) patients. These behaviours have a negative impact on the psychopathological profile of these patients. However, few studies have evaluated ... -
Substrate-integrated photonic doping for near-zero-index devices
Near-zero-index (NZI) media, a medium with near zero permittivity and/or permeability, exhibits unique wave phenomena and exciting potential for multiple applications. However, previous proof-of-concept realizations of NZI ... -
Subtipos moleculares del cáncer de mama: implicaciones pronósticas y características clínicas e inmunohistoquímicas
Fundamento. Los carcinomas de mama representan un grupo heterogéneo de tumores, tanto en su comportamiento clínico como pronóstico. El objetivo del presente trabajo es clasificar los carcinomas de mama en subtipos ... -
Successful biocontrol of major postharvest and soil-borne plant pathogenic fungi by antagonistic yeasts
Fungal pathogens are the main biotic burden of productivity for economically important crops under field, greenhouse or postharvest conditions. The discovery and development of new environmental-friendly solutions, such ... -
Sucrose synthase activity in the sus1/sus2/sus3/sus4 Arabidopsis mutant is sufficient to support normal cellulose and starch production
Sucrose synthase (SUS) catalyzes the reversible conversion of sucrose and a nucleoside diphosphate into the corresponding nucleoside diphosphate-glucose and fructose. In Arabidopsis, a multigene family encodes six SUS ... -
Sugeno integral generalization applied to improve adaptive image binarization
Classic adaptive binarization methodologies threshold pixels intensity with respect to adjacent pixels exploiting integral images. In turn, integral images are generally computed optimally by using the summed-area-table ... -
Suicidal attempts among patients with substance use disorders who present with suicidal ideation
Background and aims: Patients with addictions have a great risk of suicidal ideation and attempts. Suicidal behaviour is a continuum that begins with ideation and may continue with planning, ... -
Suicidal ideation and attempts among patients with lifetime physical and/or sexual abuse in treatment for substance use disorders
Background: Several studies indicate that lifetime abuse is a relevant risk factor for suicidal ideation and/or attempts. However, little is known about this phenomenon in patients seeking treatment for substance use ... -
Suicidal ideation and attempts in patients who seek treatment for substance use disorder
Patients with substance dependence have a great risk of suicidal ideation and attempts. The study of the specific risk characteristics of patients with substance use disorders who present with suicidal ideation and/or ... -
Suitability of Totora (Schoenoplectus californicus (C.A. Mey.) Soják) for its use in constructed wetlands in areas polluted with heavy metals
Schoenoplectus californicus subsp. tatora (totora) is an endemic plant from wetlands in South America´s Altiplano region. In the endorheic Titicaca-Desaguadero-Poopó-Salar de Coipasa system (TDPS), totora can be found along ... -
Sulfate soils stabilization with magnesium-based binders
Sulfate soils' stabilization is a very interesting subject with technical, economic and environmental implications. The difficulty of their stabilization is due to the fact that the usual stabilizer additives are based ... -
Sulphate soil stabilisation with magnesium binders for road subgrade construction
This paper analyzes the ability of magnesium oxide-based additives to stabilise a low bearing gypsum marly soil, in order to reach subgrade requirements. This soil was not adequate for stabilisation with lime or cement ... -
Sunlight, culture and state capacity
This paper examines the impact of ultraviolet radiation (UV-R) on state capacity. The results indicate that the intensity of UV-R is a strong predictor of cross-country differences in state capacity. Countries with a higher ... -
Super class AB RFC OTA using non-linear current mirrors
An alternative approach to the design of super class AB recycling folded cascode operational transconductance amplifiers is proposed. Instead of using local common-mode feedback for boosting dynamic currents, simple current ... -
Super class AB RFC OTA with adaptive local common-mode feedback
A super class AB recycling folded cascode operational transconductance amplifier is presented. It employs local common-mode feedback using two matched tuneable active resistors, allowing to adapt the amplifier to different ... -
A super-family of transcriptional activators regulates bacteriophage packaging and lysis in Gram-positive bacteria
The propagation of bacteriophages and other mobile genetic elements requires exploitation of the phage mechanisms involved in virion assembly and DNA packaging. Here, we identified and characterized four different families ... -
Super-gain-boosted AB-AB fully differential Miller op-amp with 156dB open-loop gain and 174MV/V MHZ pF/uW figure of merit in 130nm CMOS technology
A fully differential Miller op-amp with a composite input stage using resistive local common-mode feedback and regulated cascode transistors is presented here. High gain pseudo-differential auxiliary amplifiers are used ... -
Super-oscillatory metalens at terahertz for enhanced focusing with reduced side lobes
In this paper, we design and numerically demonstrate an ultra-thin super-oscillatory metalens with a resolution below the diffraction limit. The zones of the lens are implemented using metasurface concepts with hexagonal ... -
Super-resolution of Sentinel-2 images using convolutional neural networks and real ground truth data
Earth observation data is becoming more accessible and affordable thanks to the Copernicus programme and its Sentinel missions. Every location worldwide can be freely monitored approximately every 5 days using the ...