Université de Fribourg

Does long-term memory affect refreshing in verbal working memory?

Camos, Valerie ; Mora, Gérôme ; Oftinger, Anne-Laure ; Mariz Elsig, Stéphanie ; Schneider, Philippe ; Vergauwe, Evie

In: Journal of Experimental Psychology: Learning, Memory and Cognition, 2019, vol. 45, no. 9, p. 1664-1682

Attentional refreshing allows the maintenance of information in working memory and has received growing interest in recent years. However, it is still ill-defined and several proposals have been put forward to account for its functioning. Among them, some proposals suggest that refreshing relies on the retrieval of knowledge from semantic long-term memory. To examine such a proposal, the present...

Consortium of Swiss Academic Libraries

The Sample Size Needed for the Calculation of a GLM Tariff

Schmitter, Hans

In: ASTIN Bulletin, 2004, vol. 34, no. 1, p. 249-262

Haute Ecole pédagogique Fribourg

Chameleon Effects in Homework Research : The Homework-Achievement Association Depends on the Measures Used and the Level of Analysis Chosen

Trautwein, Ulrich ; Schnyder, Inge ; Niggli, Alois ; Neumann, Marko ; Lüdtke, Oliver Max Planck Institute for Human Development, Berlin

In: Contemporary Educational Psychology, 2009, vol. 34, no. 1, p. 77-88

Using a data set specifically tailored to homework research, with a sample of 1,275 students from 70 classes in Switzerland, the association between homework and achievement in French as a second language was tested at three levels (class level, between-student level, within-student level). The strength and direction of the homework-achievement association depended on the homework indicator...

Université de Fribourg

Tree-ring reconstruction of past debris flows based on a small number of samples—possibilities and limitations

Stoffel, Markus ; Bollschweiler, Michelle

In: Landslides, 2009, vol. 6, no. 3, p. 225-230

Tree-ring analyses have often been used in the past for the reconstruction of spatiotemporal patterns of previous debris-flow activity, often yielding very precise and extensive data for torrents where information on former activity was largely missing. Unless dendrogeomorphology is slated for multimillion Euro developments, the large sets of tree-ring series that are usually used in these...

Université de Fribourg

Spatial analysis of rockfall activity, bounce heights and geomorphic changes over the last 50 years – A case study using dendrogeomorphology

Schneuwly, Dominique M. ; Stoffel, Markus

In: Geomorphology, 2008///doi:10.1016/j.geomorph.2008.05.043

Tree-ring series have been used to reconstruct 50 years of rockfall behavior on a slope near Saas Balen (Swiss Alps). A total of 796 cores and 141 cross sections from 191 severely injured conifer trees (Larix decidua Mill., Picea abies (L.) Karst. and Pinus cembra L.), combined with a series of aerial photographs, were used to investigate the evolution of the forest stand so...

Université de Fribourg

A review of studies dealing with tree rings and rockfall activity : the role of dendrogeomorphology in natural hazard research

Stoffel, Markus

In: Natural Hazards, 2006, vol. 39, no. 1, p. 51-70

Over the last few years, rockfall research has increasingly focused on hazard assessment and risk analysis. Input data on past rockfall activity were gathered from historical archives and lichenometric studies or were obtained through frequency– volume statistics. However, historical records are generally scarce, and lichenometry may only yield data with relatively low resolutions. On...

Université de Fribourg

Differentiating past events on a cone influenced by debris-flow and snow avalanche activity - a dendrogeomorphological approach

Stoffel, Markus ; Bollschweiler, Michelle ; Hassler, Gion-Reto

In: Earth Surface Processes and Landforms, 2006, vol. 31, no. 11, p. 1424 - 1437

Dendrogeomorphology was used to investigate past events on a cone affected by both debris flows and snow avalanches. We report on results of 520 cores from 251 injured Larix decidua Mill. and Picea abies (L.) Karst. trees sampled on the Birchbach cone (Swiss Alps). Detailed analysis of tree-ring sequences allowed dating of 561 growth disturbances in individual trees for a 252 yr...

Université de Fribourg

Analyzing rockfall activity (1600–2002) in a protection forest—a case study using dendrogeomorphology

Stoffel, Markus ; Schneuwly, Dominique M. ; Bollschweiler, Michelle ; Lièvre, Igor ; Delaloye, Reynald ; Myint, Moe ; Monbaron, Michel

In: Geomorphology, 2005, vol. 68(3-4), p. 224

For the first time, dendrogeomorphology has been used to investigate spatial and temporal variations of rockfall activity in a protection forest. We report results of 564 cores from 135 severely injured Larix decidua Mill. trees on the west-facing Täschgufer slope, Swiss Alps. While trees sampled reached an age of 297 years on average, the oldest one attained breast height in AD 1318. For...