Search results for "cad"

Adaptación y uso de los extranjerismos en de la 23.ª edición del 'Diccionario de la lengua española'

2019

Esta investigación estudia la recogida y adaptación de extranjerismos por parte de la 23.ª edición del Diccionario de la lengua española de la Real Academia Española. En concreto, realizaremos un estudio comparativo entre la inclusión y adaptación que se realizó, en el año 2005, en el Diccionario panhispánico de dudas y la posterior inclusión o exclusión de estas voces en la última versión del Diccionario. La inserción de estas adaptaciones en el Diccionario supondría, teóricamente, la integración de estas voces en la lengua española. Para comprobar hasta qué punto esta integración es real, cotejaremos la aparición de estos extranjerismos adaptados en el CORPES, corpus de referencia actual …

If you can defend your own point of view, you're good : Norms of voice construction in student writing on an international Master's programme

2019

Abstract This ethnographically oriented study followed the writing experiences of four students on an international masters programme in Finland. Gathering a range of data, the study set out to examine what counts as good writing on a programme with a very diverse student body in which English is used as a lingua franca. Both teachers and students emphasised the importance of arguing one's ‘own point of view’ in academic writing, and teachers often formed impressions of students on the basis of their texts, drawing attention particularly to their use of metadiscourse markers (e.g., self-mentions, attitude markers and hedges). The present article therefore combines a quantitative analysis of…

2021

Abstract Understanding adolescent usage activity and experiences in web-based psychological intervention programs helps in developing universal programs that can be adopted for promotion of adolescent well-being and prevention of mental health problems. This study examined the usage activity, perceived usefulness (i.e., learning of mindfulness, acceptance and value-related skills), and program satisfaction of 157 Finnish ninth-grade adolescents, who participated in a school-based five-week universal acceptance and commitment therapy web intervention called Youth Compass. Individual and growth environment-related antecedents were measured before the five-week intervention, adolescents' usage…

Reducing disruptive behaviours and improving classroom behavioural climate with class-wide positive behaviour support in middle schools

2017

Disruptive behaviour in classrooms is a significant challenge for learning in schools and a risk factor for students’ academic achievement and a significant source of teachers’ work-related stress. Earlier research shows that clear behavioural expectations, monitoring students’ adherence to them and behaviour-specific praise are effective practices to reduce disruptive behaviour. Although behaviour problems are common in middle schools, most of the interventions have been developed and studied in elementary schools. This randomised study evaluated the effects of a class-wide intervention on classroom behavioural climate and disruptive behaviour, on teacher-experienced stress and on the time…

Trajectories of stress biomarkers and anxious-depressive symptoms from pregnancy to postpartum period in women with a trauma history

2019

Background: Cross-sectional studies have found that a trauma history can be associated with anxious-depressive symptomatology and physiological stress dysregulation in pregnant women. Methods: This prospective study examines the trajectories of both anxiety and depressive symptoms and salivary cortisol and alpha-amylase biomarkers from women with (n = 42) and without (n = 59) a trauma history at (i) 38th week of gestation (T1), (ii) 48 hours after birth (T2), and (iii) three months after birth (T3). Results: The quantile regression model showed that trauma history was associated with higher cortisol levels at T1 and this difference was sustained along T2 and T3. Conversely, there were no si…

Parenting and adolescent adjustment: The mediational role of family self-esteem

2021

The present study analyzes the relationship between parental socialization practices, acceptance/involvement, and strictness/ imposition, and different indicators of adolescent adjustment, taking into account the role of family self-esteem. A sample of 848 Spanish adolescents (54.70% females) ranging in age from 14 to 18 years old (M = 16.11, SD = 1.10) participated in the study. A series of structural equations models (SEMs) were tested to examine the mediational role of family self-esteem in the relationship between parenting practices and the outcome variables that capture adolescent adjustment: emotional instability, antisocial behavior, and academic achievement. The influence of parent…

Drone arc routing problems

2018

[EN] In this article, we present some drone arc routing problems (Drone ARPs) and study their relation with well-known postman ARPs. Applications for Drone ARPs include traffic monitoring by flying over roadways, infrastructure inspection such as by flying along power transmission lines, pipelines or fences, and surveillance along linear features such as coastlines or territorial borders. Unlike the postmen in traditional ARPs, drones can travel directly between any two points in the plane without following the edges of the network. As a consequence, a drone route may service only part of an edge, with multiple routes being used to cover the entire edge. Thus the Drone ARPs are continuous o…

A New Branch-and-Cut Algorithm for the Generalized Directed Rural Postman Problem

2016

The generalized directed rural postman problem, also known as the close-enough arc routing problem, is an arc routing problem with some interesting real-life applications, such as routing for meter reading. In this article we introduce two new formulations for this problem as well as various families of new valid inequalities that are used to design and implement a branch-and-cut algorithm. The computational results obtained on test bed instances from the literature show that this algorithm outperforms the existing exact methods

The Chinese Postman Problem with Load-Dependent Costs

2018

[EN] We introduce an interesting variant of the well-known Chinese postman problem (CPP). While in the CPP the cost of traversing an edge is a constant (equal to its length), in the variant we present here the cost of traversing an edge depends on its length and on the weight of the vehicle at the moment it is traversed. This problem is inspired by the perspective of minimizing pollution in transportation, since the amount of pollution emitted by a vehicle not only depends on the travel distance but also on its load, among other factors. We define the problem, study its computational complexity, provide two mathematical programming formulations, and propose two metaheuristics for its soluti…

Multi-criteria analysis applied to multi-objective optimal pump scheduling in water systems

2019

Abstract This work presents a multi-criteria-based approach to automatically select specific non-dominated solutions from a Pareto front previously obtained using multi-objective optimization to find optimal solutions for pump control in a water supply system. Optimal operation of pumps in these utilities is paramount to enable water companies to achieve energy efficiency in their systems. The Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (FTOPSIS) is used to rank the Pareto solutions found by the non-dominated sorting genetic algorithm (NSGA-II) employed to solve the multi-objective problem. Various scenarios are evaluated under leakage uncertainty conditions, res…