Object-Based Greenhouse Mapping Using Very High Resolution Satellite Data and Landsat 8 Time Series

Greenhouse mapping through remote sensing has received extensive attention over the last decades. In this article, the innovative goal relies on mapping greenhouses through the combined use of very high resolution satellite data (WorldView-2) and Landsat 8 Operational Land Imager (OLI) time series within a context of an object-based image analysis (OBIA) and decision tree classification. Thus, WorldView-2 was mainly used to segment the study area focusing on individual greenhouses. Basic spectral information, spectral and vegetation indices, textural features, seasonal statistics and a spectral metric (Moment Distance Index, MDI) derived from Landsat 8 time series and/or WorldView-2 imagery were computed on previously segmented image objects. In order to test its temporal stability, the same approach was applied for two different years, 2014 and 2015. In both years, MDI was pointed out as the most important feature to detect greenhouses. Moreover, the threshold value of this spectral metric turned to be extremely stable for both Landsat 8 and WorldView-2 imagery. A simple decision tree always using the same threshold values for features from Landsat 8 time series and WorldView-2 was finally proposed. Overall accuracies of 93.0% and 93.3% and kappa coefficients of 0.856 and 0.861 were attained for 2014 and 2015 datasets, respectively

Quantitative numerical and lexical knowledge : evidence of double dissociation.

El objetivo de este trabajo es determinar las implicaciones de una lesión cerebral concreta en el sistema de procesamiento numérico y el cálculo. El método empleado es el estudio de caso único, mediante la aplicación de pruebas de evaluación neuropsicológica. Los datos evidencian una doble disociación entre conocimiento numérico cuantitativo y cualitativo o léxico. Por un lado, la paciente M.C. preserva el conocimiento numérico cuantitativo tal como muestran los resultados en tareas de comprensión numérica y cálculo, sin embargo, presenta graves alteraciones en conocimiento numérico cualitativo. Por otra parte, M.L. conserva el conocimiento numérico cualitativo o léxico pero tiene gravemente alteradas las habilidades que requieren de la manipulación interna de cantidades, es decir, del conocimiento numérico cuantitativo. Estos resultados tienen dos implicaciones importantes: Primero, el conocimiento numérico cuantitativo podría estar compuesto por elementos susceptibles de dañarse de manera independiente. Y segundo, el conocimiento numérico cuantitativo es funcionalmente independiente del cualitativo.The aim of this work was to explain the involvement of a specific brain injury in the numerical processing and calculation system. The method employed was «single case» analysis and the administration of various cognitive neuropsychology tests. The results of this study revealed a double dissociation between quantitative numerical knowledge and qualitative or lexical numerical knowledge. Patient M.C. preserved quantitative numerical knowledge, as indicated by the results obtained in the numerical comprehension and calculation tasks. However, she showed a drastic deficit in qualitative numerical knowledge. On the other hand, patient M.L. preserved qualitative numerical knowledge, but she had serious problems in all the abilities that require internal manipulation of magnitude; that is, quantitative numerical knowledge. These results have two important implications, as conclusions: firstly, quantitative numerical knowledge may be made up of different elements susceptible to damage independently. And secondly, quantitative and qualitative numerical knowledge were functionally independen

Initial orientation vs maintenance of attention: Relationship with the severity of dependence and therapeutic outcome in a sample of cocaine use disorder patients

The visual probe paradigm allows for evaluating attentional bias (AB), distinguishing between approach vs avoidance patterns of attention and assessing two different processes when the exposure time to images is manipulated: initial orienting and maintenance of attention. The present study aimed to analyze the predictive capacity of these two processes for substance use disorder severity and therapeutic outcomes of patients with cocaine use disorder in treatment. The sample consisted of 70 outpatients who were starting treatment at a public service. AB was evaluated using a task based on the visual probe (VP) paradigm with images presented under two conditions: 200 ms vs 1000 ms. Cocaine and alcohol use disorder severity, craving, retention in treatment and relapse in consumption were recorded. Cocaine AB in the 1000 ms condition was negatively correlated with the cocaine use disorder severity (r = −0.26), whilst a positive correlation was found between cocaine craving and cocaine AB (r = 0.29). Alcohol use disorder severity negatively correlated with cocaine AB in the 200 ms condition (r = −0.24). Logistic regression analysis revealed that, after controlling for gender, age, and substance use disorder severity, cocaine AB in the 200 ms condition predicted dropout and relapse. Our results suggest that patients who adhere to treatment and remain abstinent tend to show avoidance in the 200 ms condition, with effect sizes of r = 0.29 and 0.30 respectively. The results suggest that training in avoidance strategies could be a valuable way of maintaining adherence and abstinence, as well as improving control of craving.Funding for open access charge: Universidad de Huelva / CBU

Impulsivity Predicts Relapse—but Not Dropout—in Outpatients with SUD: a Longitudinal Study

The objective of this study was to compare performance on a comprehensive impulsivity battery of SUD outpatients who dropout versus those who do not dropout and of abstainers versus relapsers at 3 and 12 months of treatment follow-up. Impulsivity was measured at the start of treatment and adherence and relapse at 3 and 12 months. The participants are 115 outpatients with SUD. Motor impulsivity (Affective Go/No Go), attentional impulsivity (Stroop), delay discounting (Monetary Choice Questionnaire; MCQ), and decision making (Iowa Gambling Task; IGT) were assessed. Impulsivity was not associated with dropout. There were no relationships between treatment outcomes and the MCQ and IGT. Stroop and affective Go-No Go were associated with relapse at 3 and 12 months. Affective motor disinhibition and cognitive disinhibition predict relapse in outpatients. No cognitive aspect of impulsiveness is related to dropout.Fil: Lozano Rojas, Oscar Martín. Universidad de Huelva; EspañaFil: Gómez Bujedo, Jesús. Universidad de Huelva; EspañaFil: Pérez Moreno, Pedro J.. Universidad de Huelva; EspañaFil: Lorca Marín, José Andrés. Universidad de Huelva; EspañaFil: Vera, Belén del Valle. Universidad Nacional de Córdoba. Instituto de Investigaciones Psicológicas. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Psicológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Psicología; ArgentinaFil: Moraleda Barreno, Enrique. Universidad de Huelva; Españ

3GPP QoS-based scheduling framework for LTE

This paper proposes the design of a scheduling framework for the downlink of the Long Term Evolution (LTE) system with the objective of meeting the Quality of Service (QoS) requirements as defined by the QoS architecture of the 3G Partnership Project (3GPP) specifications. We carry out a thorough review of 3GPP specifications analyzing the requirements of the 3GPP QoS architecture. LTE bearers may be associated with a Guaranteed Bit Rate (i.e., GBR bearers) or not (i.e., non-GBR bearers). Additionally, the specifications establish a Packet Delay Budget (PDB) to limit the maximum packet transfer delay. To achieve our goal, we design a channel-aware service discipline for GBR bearers which is able to fulfill not only the GBR but also the PDB. Additionally, we also design an algorithm for prioritizing GBR and non-GBR bearers from different QoS Class Identifiers (QCIs) following 3GPP QoS rules. We compare the proposed framework with two reference schedulers by means of network-level simulations. The results will show the ability of the proposed framework to address the QoS requirements from 3GPP specifications while providing an interesting performance from a spectral efficiency viewpoint.This work is partially supported by the Spanish Ministry of Economy and Competitiveness and the European Regional Development Fund (project TIN2013-46223-P)

Diferencias en el aprendizaje y derivación de relaciones arbitrarias entre jóvenes y ancianos

Differences in learning and derivation of arbitrary relationships between young and elderly. Equivalence Relations (ER) are typically derived after learning a series of conditional discriminations. ER have been extensively studied in children and adults, however there is less evidence available when it comes to elderly adults. The objectives of the present wok were 1) To use the Differential Outcomes Effect (DOE) to facilitate conditional discrimination learning, and 2) To compare the learning speed and the ability to derive new relations between elderly and young adults. We found no DOE, but important differences between groups arose. Elderly adults spent about twice as much as young adults to learn the conditional discrimination task (X2 (1, N=12) = 3.490, p=.031). Also, the elderly derived almost five times less relations than the young adults (X2(1, n=12)) = 5.19, p = .022).We conclude that this procedure discriminates between both groups. Also, some alternative procedures are proposed to use the DOE with elderly adults.Las relaciones de equivalencia (RE) se derivan típicamente a partir de un entrenamiento previo en discriminaciones condicionales. Aunque se han investigado extensivamente en niños y adultos, existe aún poca evidencia acerca de su funcionamiento en ancianos. Los objetivos del trabajo fueron 1) Utilizar un procedimiento de consecuencias diferenciales (PCD) para favorecer el aprendizaje de las discriminaciones condicionales, y 2) Comparar el aprendizaje y derivación de RE en una muestra de jóvenes y ancianos. No se encontró efecto del PCD, pero sí diferencias entre los grupos. Los ancianos tardaron casi el doble que los jóvenes en aprender las discriminaciones condicionales (X2(1, N=12) = 3.490, p = .031). Además, los ancianos derivaron casi cinco veces menos RE que los jóvenes (X2(1, n=12)) = 5.19, p = .022). Se concluye que este procedimiento discrimina entre los dos grupos, y se proponen alternativas para utilizar el PCD en RE con ancianos

Diferencias en el aprendizaje y derivación de relaciones arbitrarias entre jóvenes y ancianos

Differences in learning and derivation of arbitrary relationships between young and elderly. Equivalence Relations (ER) are typically derived after learning a series of conditional discriminations. ER have been extensively studied in children and adults, however there is less evidence available when it comes to elderly adults. The objectives of the present wok were 1) To use the Differential Outcomes Effect (DOE) to facilitate conditional discrimination learning, and 2) To compare the learning speed and the ability to derive new relations between elderly and young adults. We found no DOE, but important differences between groups arose. Elderly adults spent about twice as much as young adults to learn the conditional discrimination task (X 2 (1, N=12) = 3.490, p=.031). Also, the elderly derived almost five times less relations than the young adults (X 2 (1, n=12)) = 5.19, p = .022).We conclude that this procedure discriminates between both groups. Also, some alternative procedures are proposed to use the DOE with elderly adults.Las relaciones de equivalencia (RE) se derivan típicamente a partir de un entrenamiento previo en discriminaciones condicionales. Aunque se han investigado extensivamente en niños y adultos, existe aún poca evidencia acerca de su funcionamiento en ancianos. Los objetivos del trabajo fueron 1) Utilizar un procedimiento de consecuencias diferenciales (PCD) para favorecer el aprendizaje de las discriminaciones condicionales, y 2) Comparar el aprendizaje y derivación de RE en una muestra de jóvenes y ancianos. No se encontró efecto del PCD, pero sí diferencias entre los grupos. Los ancianos tardaron casi el doble que los jóvenes en aprender las discriminaciones condicionales (X 2 (1, N=12) = 3.490, p = .031). Además, los ancianos derivaron casi cinco veces menos RE que los jóvenes (X 2 (1, n=12)) = 5.19, p = .022). Se concluye que este procedimiento discrimina entre los dos grupos, y se proponen alternativas para utilizar el PCD en RE con ancianos

The use of machine learning algorithms for the study of business profitability: a new approach based on preferences

In recent years, researchers in the Field of Artificial Intelligence have developed a learning technique, namely, preference learning, that is suitable to be used for economic analysis. The present research empirically tests one of these models, which consists of a combination of LACE and RFE algorithms. The problem of forecasting the profitability of Spanish companies upon the basis of a set of financial ratios is used as a benchmark. The model provides forecasted rankings, which are a kind of information that is more useful for the economic analysts than the forecasted class memberships that traditional machine learning techniques provide