PAULO MONTEIRO J. , COSTA MANUEL S. 2 Ph.D. in Hydrogeology, Auxiliary Professor Universidade do Algarve, FCMA, GeoSystems Centre CVRM (IST) Campus de Gambelas, 8005-139 Faro, Phone: 351 289 800900; Fax: 351 289 818353 [email protected] Senior Agronomic Engineer, Private Consultant and Ph.D. Student Algarve University, FERN Faculty of Engineering of Natural Resources Campus de Gambelas, 8005-139...

We examine a corpus of reflective tutorial dialogues between human tutor and student after the student completed introductory physics problems, to predict when the tutor abstracted from the student’s preceding turn or when the tutor specialized from the student’s preceding turn. Tutor abstraction occurs when the tutor repeats a segment of the student’s turn using more general terms. Tutor speci...

Interpretation of symbols, as well as understanding the particulate nature of matter and spatial structures, are essential skills students need for solving problems in chemistry. However, model perception and understanding the spatial structure of organic molecules has been a source of difficulty for many chemistry students. The research objective was to investigate the effect of using virtual ...

Traditionally, abrasive finishing process focus on producing excellent surface finish on regular form shapes. Ever increasing demands in freeform features in aerospace, energy and medicine industry requires abrasive finishing technology not only provides excellent surface finish but also is capable to correct the errors on freeform surfaces. The paper presents current development of corrective ...

The rapid development of choice modelling procedures, especially using Stated Preference data, over the past twenty years, has created an opportunity for an imbalance between the models and the data used for construction of the models. This paper examines this imbalance and stresses the need for more attention to be paid to the needs of the respondent when collecting data for choice modelling. ...

We provide a characterization of selection correspondences in two-person exchange economies that can be core rationalized in the sense that there exists a preference profile with some standard properties that generates the observed choices as the set of core elements of the economy for any given initial endowment vector. The approach followed in this paper deviates from the standard rational ch...

1(School of Mathematics, University of Birmingham, Edgbaston Campus, Birmingham, UK) 2(Institute of Microbiology and Infection, School of Biosciences, University of Birmingham, Edgbaston Campus, Birmingham, UK) 3(Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA) 4(Department of Microbiology and Molecular Genetics, University of Texas McGovern Medical Schoo...