Search results for "LAB"
showing 10 items of 7932 documents
Taxonomic categorisation of motivic patterns
2009
The issue of pattern description in computational models for motivic analysis is closely related to the cognitive debate on categorisation, in which are traditionally opposed “well-defined” and “ill-defined” categorisations. The ill-defined conceptualisation has been considered as a suitable framework for the formalisation of musical categorisation as it takes into account motivic variations. It seems that computational models rely rather on well-defined categorisation, due to its better controllability. The computational model we previously presented (Lartillot & Toiviainen, 2007) strikes a balance by developing a new flexible framework allowing the taking into account of unrestricted…
Use of bitumen-stabilised ballast for improving railway trackbed conventional maintenance
2018
Despite its many advantages, ballasted track needs frequent maintenance to ensure an adequate quality of service. However, tamping, traditionally used to correct geometry, causes ballast degradation and loosening of the already compacted ballast layer, which quickly returns the track to its pre-maintenance position. Then, other maintenance techniques such as stoneblowing, as well as diverse solutions that reinforce trackbed, have been developed to reduce ballast settlement and particles degradation. Given the need to further advance research in this field, bitumen-stabilised ballast (BSB) has started to be investigated by the authors as a feasible solution thanks to its easy and quick appl…
Latvijas Vēstures Institūta Žurnāls. 2014, Nr. 2 (91)
2014
Valsts kultūrkapitāla fonds
A New Scalable and Cost-Effective Congestion Management Strategy for Lossless Multistage Interconnection Networks
2005
In this paper, we propose a new congestion management strategy for lossless multistage interconnection networks that scales as network size and/or link bandwidth increase. Instead of eliminating congestion, our strategy avoids performance degradation beyond the saturation point by eliminating the HOL blocking produced by congestion trees. This is achieved in a scalable manner by using separate queues for congested flows. These are dynamically allocated only when congestion arises, and deallocated when congestion subsides. Performance evaluation results show that our strategy responds to congestion immediately and completely eliminates the performance degradation produced by HOL blocking whi…
A Cross-Regional Exploration of Barriers to the Adoption and Use of Electronic Meeting Systems
2007
Originally published in the journal Group Decision and Negotiation: http://www.springerlink.com/content/100270/ Electronic Meeting Systems (EMS) are intended to support group collaboration in completing tasks. While there have been many case studies and laboratory experiments on how EMS can support group tasks, large scale macro investigations exploring EMS adoption and use have been practically non-existent. Furthermore, while several barriers to EMS adoption and use have been suggested, their validation across organizations remains unexplored. We undertook a global initiative to explore information technology support for task-oriented collaboration in the US, Australia, Hong Kong, and Nor…
Direct detection of repetitive, whole chromosome paint and telomere DNA probes by immunogold electron microscopy
1993
Biotinylated repetitive, whole chromosome paint and telomere DNA probes were investigated at the electron microscope level after non-isotopic in situ hybridization and direct immunogold detection. The protocol described allowed the visualization of a biotinylated chromosome 1 specific satellite DNA probe in the light microscope without silver intensification. This sensitive method was exploited to analyse factors contributing to signal strength in immunogold chromosome painting. Furthermore, it allowed us to investigate the distribution of (TTAGGG)n telomere repeats in human metaphase chromosomes and interphase nuclei. Telomeric and internal (TTAGGG)n repeats were detected at high spatial r…
Robots, labor markets, and universal basic income
2020
Automation is a big concern in modern societies in view of its widespread impact on many socioeconomic issues including income, jobs, and productivity. While previous studies have concentrated on determining the effects on jobs and salaries, our aim is to understand how automation affects productivity, and how some policies, such as taxes on robots or universal basic income, moderate or aggravate those effects. To this end, we have designed an experiment where workers make productive effort decisions, and managers can choose between workers and robots to do these tasks. In our baseline treatment, we measure the effort made by workers who may be replaced by robots, and also elicit firm repla…
TEACHING TO USE IN SCIENCE AND MATHEMATICS PREVIOUSLY ACQUIRED SKILLS
2016
Goal of the research is to analyse how students currently succeed in using basic skills acquired in mathematics, in science and real-life contexts, before new reforms in Latvia for the development of students' competence have been started. Only about 20% of students in the national testing for 9th grade were able to do it. The research analysed students’ papers, results, and study aids, as well as teacher performance in lessons.
El huerto escolar como herramienta innovadora que contribuye al desarrollo competencial del estudiante universitario. Una propuesta educativa multidi…
2017
El huerto escolar es un recurso pedagógico que permite aproximar al alumnado al entorno natural diseñando experiencias interdisciplinares que contribuyan al desarrollo de las competencias básicas. En el ámbito universitario facilita el aprendizaje cooperativo y la adquisición de habilidades socioambientales. El proyecto L’Hort 2.0 pretende crear un entorno virtual basado en el huerto escolar para la administración de contenidos TIC que permitan enlazar las actividades fuera del aula con el contenido de las guías docentes. Se trabaja mediante una metodología activa y colaborativa, en tres fases: preparación y diseño del entorno web en seis áreas temáticas; elaboración de materiales educativo…
On Information Processing in the Cat’s Visual Cortex
1986
We assume that the visual system serves for orientation in space, recognition of objects and the interpretation of scenes and scene sequences. This task breaks up into a series of partially interdependent subproblems which are solved by some 13–15 usually retinotopically organized areas. So far it has not been possible to correlate functions and areas unequivocally. One reason for this could be the inadequacy of the questions posed as a basis for experiments. However, we think it more likely that correlating a function with an area is, as a rule, inadmissible since the degree of the coupling in the whole system does not permit a simple divsion. Rather the type and degree of coupling determi…