Education Commons^™

User Control And Task Authenticity For Spatial Learning In 3d Environments, Barney Dalgarno, Barry Harper

Faculty of Social Sciences - Papers (Archive)

This paper describes two empirical studies which investigated the importance for spatial learning of view control and object manipulation within 3D environments. A 3D virtual chemistry laboratory was used as the research instrument. Subjects, who were university undergraduate students (34 in the first study and 80 in the second study), undertook tasks in the virtual laboratory and were tested on their spatial knowledge through written tests. The results of the study indicate that view control and object manipulation enhance spatial learning but only if the learner undertakes authentic tasks that require this learning. These results have implications for educational designers …

Nf328 A Guide To Grasshopper Control In Cropland, Gary L. Hein, John B. Campbell

University of Nebraska-Lincoln Extension: Historical Materials

This NebFact discusses grasshopper damage to cropland, how to determine when control is required, and methods of control.

Consumption Of Foods By Young Children With Diagnosed Campylobacter Infection - A Pilot Case-Control Study, Scott Cameron, Karin Ried, Anthony Worsley, David Topping

Faculty of Social Sciences - Papers (Archive)

Objective: To determine whether parentally reported habitual intake of specific foods differed between children with diagnosed Campylobacter jejuni infection and children of a comparison group without diagnosed infection.

Design, setting and subjects: Information was collected from the parents or primary caregivers of South Australian children aged 1–5 years with diagnosed C. jejuni (cases, n=172) and an age- and gender-matched group of uninfected children (controls, n=173). Frequency of consumption of 106 food and drink items was determined for the preceding two months by food-frequency questionnaire. Four children in the control group had recorded diarrhoeal episodes during the assessment period …