Search results for "Multiple"

Resilience of hop (Humulus lupulus L.) to salinity, heat and drought stresses: A mini-review

2022

Over recent years, the cultivation of hops (Humulus lupulus L.) has spread widely in the Mediterranean, also affecting the southern regions of Spain and Italy with a typical semi-arid climate. Several and recent studies have investigated the responses of this species to the main abiotic stresses, which is an aspect of absolute relevance to the knowledge of the adaptive capacity of hops to the growing conditions of a new cultivation environment. Moreover, given the fact that hops’ phytochemical composition is determined primarily by genetic and environmental factors, and that the species is perennial, the lack of knowledge on the effects of abiotic stress could be reflected in subsequent yea…

Data-driven Interactive Multiobjective Optimization : Challenges and a Generic Multi-agent Architecture

2020

In many decision making problems, a decision maker needs computer support in finding a good compromise between multiple conflicting objectives that need to be optimized simultaneously. Interactive multiobjective optimization methods have a lot of potential for solving such problems. However, the growth of complexity in problem formulations and the abundance of data bring new challenges to be addressed by decision makers and method developers. On the other hand, advances in the field of artificial intelligence provide opportunities in this respect. We identify challenges and propose directions of addressing them in interactive multiobjective optimization methods with the help of multiple int…

The diagnosis of multiple sclerosis: pinpointing the concept of "no better explanation"

2014

Glottodidattica e Intelligenze Multiple nell’uso della canzone in LS. Un esperimento di simulazione didattico-laboratoriale

2009

Beyond Tandem Analysis: Joint Dimension Reduction and Clustering in R

2019

We present the R package clustrd which implements a class of methods that combine dimension reduction and clustering of continuous or categorical data. In particular, for continuous data, the package contains implementations of factorial K-means and reduced K-means; both methods combine principal component analysis with K-means clustering. For categorical data, the package provides MCA K-means, i-FCB and cluster correspondence analysis, which combine multiple correspondence analysis with K-means. Two examples on real data sets are provided to illustrate the usage of the main functions.

Predictors for Therapy Response to Intrathecal Corticosteroid Therapy in Multiple Sclerosis

2019

\(\bf Objective:\) The autoimmune disease Multiple Sclerosis (MS) represents a heterogeneous disease pattern with an individual course that may lead to permanent disability. In addition to immuno-modulating therapies patients benefit from symptomatic approaches like intrathecal corticosteroid therapy (ICT), which is frequently applied in a growing number of centers in Germany. ICT reduces spasticity, which elongates patient's walking distance and speed, thus improves quality of life. \(\bf Methods:\) In our study we set out to investigate cerebrospinal fluid (CSF) parameters and clinical predictors for response to ICT. Therefore, we analyzed 811 CSF samples collected from 354 patients over …

Crystal growth and characterization of Zn1-xMgxO advanced micro- and nanostructures

2018

Dentro de la creciente área de investigación de la física de semiconductores, los pertenecientes a la familia II-VI se han convertido en un campo fundamental de la física de materiales debido a que sus propiedades fotofísicas son únicas para crear una nueva generación de dispositivos en el campo de la fotónica y la microelectrónica. Entre ellos, los semiconductores basados en ZnO han ganado un considerable interés en la comunidad científica en parte debido a su alta energía de enlace del excitón (60 meV) la cual es 2.4 veces más alta que la energía térmica a temperatura ambiente. Este hecho puede dar lugar a emisión laser excitónica a temperaturas incluso mayores que la ambiente. Además, gr…

Chronic cerebrospinal venous insufficiency: state of the art and research challenges

2012

This review discusses a potential vascular basis for multiple sclerosis (MS). The idea that MS could be related to vascular disease is not new, with the first reports describing connections between veins and MS plaques dating from the 19th century. The venous abnormalities found in MS patients, the socalled chronic cerebrospinal venous insufficiency, are currently interpreted as congenital venous malformations. Catheter venography is regarded as the gold standard to assess these lesions, while other tests, such as Doppler sonography and magnetic resonance venography, are much less accurate. Importantly, a relationship between venous pathologies and MS has not yet been proven, especially reg…

Children’s transitions in early childhood education and care : various combinations of dis-/continuities

2023

This longitudinal multiple case study explores children’s transitions within early childhood education and care (ECEC) in Finland. In ECEC children typically transition from one group or center to another. This study explores how physical, social and philosophical discontinuities and continuities constitute these transitions. Five focus children’s transitions were followed in and between separate ECEC centers. The data include interviews with parents and educators as well as observations noted. Fabian’s discontinuity division, which argues that transition consists of physical, social, and philosophical discontinuities, was used for content analysis of interviews as primary data. Interpretat…

Distractor Efficiency in an Item Pool for a Statistics Classroom Exam: Assessing Its Relation With Item Cognitive Level Classified According to Bloom…

2018

Multiple-choice items are one of the most commonly used tools for evaluating students’ knowledge and skills. A key aspect of this type of assessment is the presence of functioning distractors, i.e., incorrect alternatives intended to be plausible for students with lower achievement. To our knowledge, no work has investigated the relationship between distractor performance and the complexity of the cognitive task required to give the correct answer. The aim of this study was to investigate this relation, employing the first three levels of Bloom’s taxonomy (Knowledge, Comprehension, and Application). Specifically, it was hypothesized that items classified into a higher level of Bloom’s class…