Search results for "LAB"
showing 10 items of 7932 documents
STRUCTURAL CHANGES IN INTERNATIONAL TRADE: INTER-INDUSTRY SHIFTS IN COMPARATIVE ADVANTAGE
2012
The contemporary industrial configuration centered on intra-firm trade and cross border commodity chains has made comparative advantage look like a rusty concept. Prior to globalization, shifts in comparative advantage would occur mainly across industries, causing clear-cut changes in countries’ specialization patterns. By contrast, when factors of production are allowed to move freely across national boundaries, the picture gets somewhat fuzzy: the comparative advantage concept requires a different approach that should take into account the increasing disintegration of production processes and spreading of economic activities across the globe. Due to their relatively high mobility and prop…
Līdzdalības didaktiskās stratēģijas kā dažādības pedagoģiskais risinājums vidusskolēniem STEM kompetenču iegūšanas procesā
2017
Mūsdienu pasaulē, kur tehnoloģijas nemitīgi turpina attīstīties, skolotājiem ir nepieciešams pielietot šo iespaidīgo rīku, lai rosinātu ieinteresētību skolēnos un motivētu viņus. Viens no Meksikas Vidējās izglītības sistēmas reformas mērķiem ir attīstīt vispārējas un disciplināras kompetences Fizika IV priekšmetā starp dažādiem vidusskolas skolēniem. Lai sasniegtu šo mērķi, tiek izmantotas tādas didaktiskās stratēģijas kā prezentācijas klasē un savstarpēja sadarbība starp skolēniem, kas tiek papildinātas ar Robert Marzano Dimensiju teoriju, konstruktīvisma fokusu un padziļinātu mācību apguvi. Pielietojot šīs stratēģijas, tiek demonstrēts, ka motivēti skolēni strādā labāk, apgūst kompetences…
Les xarxes socials com a recurs educatiu
2012
L’ús de les xarxes socials amb finalitats educatives afavoreix l’aprenentatge col·laboratiu i l’intercanvi d’informació. Aquest article presenta una experiència de l’ús de les xarxes socials com a recurs educatiu, concretament de la plataforma Ning, amb la finalitat d’animar el professorat perquè les utilitze en la seua pràctica docent. La xarxa Ning té l’avantatge de disposar d’un entorn privat per als membres del grup que permet personalitzar el treball del curs dins d’una comunitat virtual particular. A més, potencia la interacció comunicativa i possibilita incloure-hi diferents materials multimèdia i recursos produïts tant pel professorat com per l’alumnat. The use of social networks fo…
Especificidad, integración e incidencia de la técnica en la evaluación de la RAA en el fútbol
2019
Las habilidades para repetir aceleraciones máximas y submáximas (RAA) son consideradas de gran importancia en el rendimiento de los futbolistas. Tras analizar las demandas físicas propias del fútbol, el principal objetivo de esta tesis fue diseñar un test de RAA que permita integrar la evaluación conjunta de las diferentes manifestaciones condicionales que son específicas para los futbolistas. El test UST, consta de tres secciones: SEC-A condicional (30m:10m Sprint lineal + 2x10m ida y vuelta /5s), SEC-B técnica con conducción y pase de balón [40m (2x10m-COD-derecha+ 2x10m-COD-izquierda/5s)], SEC-C valoración de la fuerza explosiva [1-CMJ]. Con el fin de determinar la reproducibilidad del t…
Classificazione e analisi delle forme labiali della LIS in storie elicitate
2000
Computational modeling of molecularly imprinted polymers as a green approach to the development of novel analytical sorbents
2018
Abstract The development of novel molecularly imprinted polymers (MIP) sorbents for specific chemical compounds require a lot of tedious and time-consuming laboratory work. Significant quantities of solvents and reagents are consumed in the course of the verification of appropriate configurations of polymerization reagents. Implementation of molecular modeling in the MIP sorbent development process appears to provide a solution to this problem. Appropriate simulations and computations facilitate the determination of the nature of interaction between the reagents and thus the selection of the best configuration of chemicals for the preparation of the sorbent. The article presents literature …
Cross-Device Augmented Reality Annotations Method for Asynchronous Collaboration in Unprepared Environments
2021
Augmented Reality (AR) annotations are a powerful way of communication when collaborators cannot be present at the same time in a given environment. However, this situation presents several challenges, for example: how to record the AR annotations for later consumption, how to align virtual and real world in unprepared environments or how to offer the annotations to users with different AR devices. In this paper we present a cross-device AR annotation method that allows users to create and display annotations asynchronously in environments without the need for prior preparation (AR markers, point cloud capture, etc.). This is achieved through an easy user-assisted calibration process and a …
Designing and investigating pedagogical scripts to facilitate computer-supported collaborative learning
2008
Computer-supported collaborative learning (CSCL) appears to provide a promising social approach to foster learning. On the other hand, recent studies have indicated that when learners are left on their own, it is often difficult for teams to engage in productive interactions. Therefore, the use of collaboration scripts as instructional support has been presented as a possibility to trigger productive collaborative activities. This study provides knowledge of collaboration scripts as a pedagogical method to facilitate group processes in virtual environments in authentic educational contexts. The findings indicate that scripts as external support can help students proceed in solving learning …
Case-based portraits of contrasting micro-interaction processes during online assessment of collaborative problem solving
2017
This study recognizes the role and the quality of social aspects in collaborative problem solving (CPS) processes and outcomes. The aim of this study, relying on multiple data and phases of analysis, is to explore and visualise, through contrasting case-based portraits, how micro-interaction processes at pair level evolve during CPS assessments in an online environment. The assessment is designed for a student pair in the STEM domain. The results show that in despite students’ similar CPS performance scores, variations in micro-interactions occurred across pairs. It is expected that studying these patterns at pair level may provide new insights into CPS processes and so to support acquiring…
Staying at the front line of literature: How can topic modelling help researchers follow recent studies?
2021
Staying at the front line in learning research is challenging because many fields are rapidly developing. One such field is research on the temporal aspects of computer-supported collaborative learning (CSCL). To obtain an overview of these fields, systematic literature reviews can capture patterns of existing research. However, conducting systematic literature reviews is time-consuming and do not reveal future developments in the field. This study proposes a machine learning method based on topic modelling that takes articles from a systematic literature review on the temporal aspects of CSCL (49 original articles published before 2019) as a starting point to describe the most recent devel…