Trouble-based group dynamics in real-world HRI - Reactions on unexpected next moves of a museum guide robot.

Gehle R, Pitsch K, Dankert T, Wrede S. Trouble-based group dynamics in real-world HRI - Reactions on unexpected next moves of a museum guide robot. Presented at the 24th International Symposium on Robot and Human Interactive Communication (Ro-MAN)

Referential practices. Effects of a museum guide robot suggesting a deictic ‘repair’ action to visitors attempting to orient to an exhibit

Pitsch K, Dankert T, Gehle R, Wrede S. Referential practices. Effects of a museum guide robot suggesting a deictic ‘repair’ action to visitors attempting to orient to an exhibit. In: 2016 25th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN). IEEE; 2016

How to Open an Interaction Between Robot and Museum Visitor?

Gehle R, Pitsch K, Dankert T, Wrede S. How to Open an Interaction Between Robot and Museum Visitor? In: Proceedings of the 2017 ACM/IEEE International Conference on Human-Robot Interaction - HRI '17. New York, NY: ACM Press; 2017: 1

Effects of a robot’s unexpected reactions in robot-to-group interactions

Gehle R, Pitsch K, Dankert T, Wrede S. Effects of a robot’s unexpected reactions in robot-to-group interactions. Presented at the IIEMCA 2015, Kolding, Denmark

A Shift from Oral to Blood pH Is a Stimulus for Adaptive Gene Expression of Streptococcus gordonii CH1 and Induces Protection against Oxidative Stress and Enhanced Bacterial Growth by Expression of msrA

Viridans group streptococci (VS) from the oral cavity entering the bloodstream may initiate infective endocarditis (IE). We aimed to identify genes expressed in response to a pH increase from slightly acidic (pH 6.2) to neutral (pH 7.3) as encountered by VS entering the bloodstream from the oral cavity. Using a recently developed promoter-screening vector, we isolated five promoter fragments from the genomic DNA of Streptococcus gordonii CH1 responding to this stimulus. No common regulatory sequences were identified in these promoter fragments that could account for the coordinate expression of the corresponding genes. One of the isolated fragments contained the promoter region and 5′ end of a gene highly homologous to the methionine sulfoxide reductase gene (msrA) of various bacterial and eukaryotic species. This gene has been found to be activated in S. gordonii strain V288 in a rabbit model of IE (A. O. Kiliç, M. C. Herzberg, M. W. Meyer, X. Zhao, and L. Tao, Plasmid 42:67–72, 1999). We isolated and characterized the msrA gene of S. gordonii CH1 and constructed a chromosomal insertion mutant. This mutant was more sensitive to hydrogen peroxide, suggesting a role for the streptococcal MsrA in protecting against oxidative stress. Moreover, MsrA appeared to be important for the growth of S. gordonii CH1 under aerobic and anaerobic conditions. Both these properties of MsrA may contribute to the ability of S. gordonii to cause IE

Engagement Detection During Deictic References in Human-Robot Interaction

Dankert T, Goerlich M, Wrede S, Gehle R, Pitsch K. Engagement Detection During Deictic References in Human-Robot Interaction. In: Social Robotics. Lecture Notes in Computer Science. Cham: Springer Nature; 2016: 930-939

La evaluación de corrección objetiva como instrumento de mejora en el aprendizaje de la història en bachillerato.

En este artículo se describe la investigación realizada por el grupo DHIGECS de la Universidad de Barcelona durante los años 2002, 2003 y 2004 . Esta línea de investigación se ha propuesto y se propone estudiar las relaciones entre la frecuencia de las pruebas de evaluación objetiva, consideradas fundamentalmente como actividades de aprendizaje, y los resultados obtenidos en la materia de Historia en el Bachillerato. Han participado en este trabajo 19 profesores y se ha trabajado con una muestra de 800 alumnos. Este artículo sigue en la línea iniciada en 1997 centrada en el aprendizaje de la historia en primer curso de ESO. Se presenta la problemática objeto de estudio, la metodología utilizada, el proceso de investigación seguido y se exponen algunos de los resultados obtenidos