Search results for "on-line [trigger]"
showing 3 items of 13 documents
Improved ion guide for heavy-ion fusion-evaporation reactions
1998
The ion guide for heavy-ion-induced reactions developed originally for the SARA facility in Grenoble has been implemented at the Jyvaskyla IGISOL facility. For the Cd-116(Ar-40, 6n)Dy-150 reaction an efficiency of 0.5% relative to the number of reaction products entering the stopping chamber was obtained. This is 3.5 times higher than previously obtained at SARA and corresponds to a yield of about 100 ions/(p mu C mb). Mass-separated yields for the Ar-36 + Mo-92 and Ar-36 + Mo-94 reactions were measured. (C) 1998 Elsevier Science B.V. All rights reserved.
Structuring didactic materials on the Web (Struct)
2009
There is an universal agreement that the structuring of didactic materials helps the student in his/her learning process when dealing with such materials. It is then important for the teacher or a student to choose among different structures so to use the one that best conveys the desired knowledge. This need is nowadays a priority also in the e-learning world since several e-learning courses exist on the web and many more are created every day. Unfortunately, most of the existing e-learning platforms offer just a single way to organize the course contents (book structure). Whoever is interested in organizing the course contents in a different way (e.g, with a concept map) must use specific…
The Role of General and Selective Task Instructions on Students’ Processing of Multiple Conflicting Documents
2019
This study was designed to test the role of general and selective task instructions when processing documents, which vary as regards trustworthiness and position toward a conflicting topic. With selective task instructions, we refer to concrete guidelines as how to read the texts and how to select appropriate documents and contents, in contrast to general task instructions. Sixty-one secondary school students were presented with four different conflicting documents in an electronic learning environment and were told to write an essay based on the information from the texts. Only half of the students were told to only use information from two out of the four texts to write their essay (i.e.,…