Applying Competence Structures for Peer Tutor Recommendations in CSCL Environments.
Competence structures of the content and competence modelling of the learners provide well-suitable means for finding appropriate peer tutors in CSCL based on asynchronous messaging and annotations. Various criteria for the appropriateness of potential peer tutors can be discussed. An internet-based system used as a large scale Web experiment can then also deliver data for evaluating such criteria.
Author(s): Heller JÃ¼rgen,Hockemeyer Cord,Albert Dietrich

Understanding the structure of the set of rational numbers: a conceptual change approach.
In the present article, we argue that the conceptual change approach to learning can apply in the case of mathematics, taking into consideration the particular nature of mathematical knowledge and the neurobiological bases of mathematical cognition. In the empirical study that is reported in this article, we investigated ninth graders' understanding of algebraic and structural properties of rational numbers, from a conceptual change perspective. We make the point that understanding rational numb

Levels of Measurement - what you can and can't do arithmetically
An explanation of the statistical operations that can be performed on the different levels of measurement.
Author(s): David Justham

Interpreting Electrospray Mass Spectra
This site is a tutorial on interpretation of electrospray mass spectra of multiply charged molecules. It provides a simple explanation of the electrospray process and the potential for the creation of multiply charged species, especially when working with peptides. The mathematics of determining the charge state and molecular weight of the peptide is also explained. Although this site provides a good foundation on electrospray MS of peptides, students requiring an advanced understanding of MS
Author(s): Ion Source

Tissues of Life
This Web site from the Science Museum of Minnesota offers a fun and interactive way to learn about the structure and function of the body's tissues. While some activities provided are designed to complement an on-site visit to the Tissues of Life exhibit, the Web site also includes many stand-alone Web-based features. For example, with Explore Body Tissues, students can take a look at cross-sections of actual human bodies, browse through a gallery of scar photos (and perhaps add a photo of their
Author(s): Creator not set

Experiences of Racism Among African American Parents and the Mental Health of Their Preschool-Aged C
Objectives. We examined the relationship between parents’ experiences of racism and children’s well-being and the influence of the residential neighborhood characteristics on this relationship. Methods. African American families were recruited from Baltimore neighborhoods. Parental measures included racism experiences and coping. Neighborhood measures included demographic characteristics, social cohesion, and social climate. Children’s mental health was assessed with the Child Behavior Ch
Author(s): Caughy, Margaret OâBrien,OâCampo, Patricia J.,

Racial Differences in 30-Day Mortality for Pulmonary Embolism
Objectives. Previous studies reported a higher incidence of in-hospital mortality for Black patients who had pulmonary embolism than for White patients. We used a large statewide database to compare 30-day mortality (defined as death within 30 days from the date of latest hospital admission) for Black and White patients who were hospitalized because of pulmonary embolism. Methods. The study cohort consisted of 15531 discharged patients who had been treated for pulmonary embolism at 186 Pennsylv
Author(s): Ibrahim, Said A.,Stone, Roslyn A.,Obrosky, D. Scot

Stage at Diagnosis and Survival in a Multiethnic Cohort of Prostate Cancer Patients
Objectives. We evaluated the effects of socioeconomic status and comorbidity on stage of disease and survival among 1,509 population-based prostate cancer patients. Methods. We applied logistic regression and Cox proportional hazards regression to data from Whites, African Americans, and Asian Americans who were diagnosed from 1987 to 1991. Results. Patients with existing comorbid conditions were less likely than those without these conditions to be diagnosed with advanced cancer. Compared wit
Author(s): Oakley-Girvan, Ingrid,Kolonel, Laurence N.,Gallagh

Portfolio Building
The aim of this lesson is to develop students' understanding of the importance of portfolio building. It is the seventh lesson in the study skills series and is intended to support adult learners who are embarking on a course of study and need to acquire skills which will help them to be successful. The lessons are designed as a package with key skills reinforced in each subsequent lesson so that a study culture is developed over time. They can be delivered sequentially or used individually, as
Author(s): No creator set

Poetry
This site provides more than 40 books of (and about) poetry written in the 19th century.
Author(s): No creator set

Crack detection in a three dimensional body
We propose a method of analyzing a crack in a three dimensional body. We treat the problem as an inverse problem and apply Green’s Theorem, Trace Theorem, and the Fredholm Alternative. We model the problem using Helmholtz equation.,Thesis (M.S.)--Wichita State University, Mathematics and Statistics.,"May 2006.",Includes bibliographic references (leaves 10-11)
Author(s): Redpath, Steven F.

Other selection methods
Welcome to Other Selection Methods a workbook in the Futures series of workbooks, which help students choose and prepare a career route after graduation. Like the other workbooks in the series you can dip in and out doing the exercises which are most relevant to you. You might want to include the exercises or the output in your personal development plan or e-portfolio. The aim of this workbook is to introduce you to a range of common selection methods used by employers to select graduates for jo
Author(s): Leeds Metropolitan University

Exploratory Pharmacokinetic Study
This dataset comes from a study of 7 healthy males given a topical medication. Blood samples were collected at specified time intervals, and data on isomer concentrations were collected. Questions from this study refer to the relationship between time and concentration of the isomer. A text file version of the data is found in the relation link.

Chart the Effects of Smoking
Students will estimate the amount of time they have each been exposed to second-hand smoke throughout their lives and chart the results as a class, discussing possible consequences of different levels of exposure.
Author(s): No creator set

2009 National Hydrologic Assessment
This site from the Hydrologic Information Center of the National Weather Service discusses the flood risk in the United States. Maps and satellite images support the text. The site also provides information about snow levels, stream flow, soil conditions, forecasts and outlooks.
Author(s): No creator set

Hair cells are found in the organ of Corti and run the length of the basilar membrane. They transform mechanical energy into neural signals.

When the basilar membrane vibrates in response to sound, hair cells located at the site of maximal vibration on the basilar membrane are stimulated. This means that the mechanical properties of the membrane allow the auditory system to distinguish one frequency from another by the location on the membrane that is maximally excited by a particular f
Author(s): The Open University

Case study of a professional development program: meaningful technology integration in secondary edu
This case study investigated the effects of the design, development, implementation, and evaluation of a professional development program to facilitate the meaningful integration of technology into the curriculum for secondary teachers at a large suburban school. This study addressed the problem of the high cost of technology for a district that had yielded disappointing levels of meaningful technology integration in the teaching and learning process. The professional development program was bas
Author(s): Herman, Leonard Paul

Michael Walker, Co-Founder of YumvY, shares with us their app they created for Windows 8 and
Author(s): ChrisCaldwell

Using just-in-time information to support scientific discovery learning about geometrical optics in
Many problems that learners regularly encounter during discovery learning with computer-based simulations have been identified. A number of studies have examined different ways of support for discovery learning by facilitating the learning process. This study examines the effect of facilitating access to prior knowledge through just-in-time information. It is expected that access to just-in-time information will foster learning but will not interfere with it. To test these hypotheses, an experim
Author(s): Hulshof Casper,de Jong Ton

Le futur des écrans plats (video)

Une conférence de l'UTLS au Lycée

Le futur des écrans plats par Yvan Bonnassieux

Lycée professionnel rural Antoine Lomet (47 Agen)

Author(s): No creator set