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Superparamagnetic iron oxide nanoparticles functionalized with peptides by electrostatic interactions
(2007)ArkivocSuperparamagnetic iron oxide nanoparticles coated with dextran were functionalized with negatively charged functionalities in order to connect specific peptide labels by electrostatic interactions. Peptide binding on the nanoparticles was indicated by HR-TEM, an electrospray scanning mobility particle sizer, and fluorescence measurements.Journal Article -
Specificity and Evolvability in Eukaryotic Protein Interaction Networks
(2007)PLoS Computational BiologyProgress in uncovering the protein interaction networks of several species has led to questions of what underlying principles might govern their organization. Few studies have tried to determine the impact of protein interaction network evolution on the observed physiological differences between species. Using comparative genomics and structural information, we show here that eukaryotic species have rewired their interactomes at a fast ...Journal Article -
Phase Behavior of Methane Haze
(2007)Physical Review LettersMethane aerosols play a fundamental role in the atmospheres of Neptune, Uranus, and Saturn’s moon Titan as borne out by the recent Cassini-Huygens mission. Here we present the first study of the phase behavior of free methane aerosol particles combining collisional cooling with rapid-scan infrared spectroscopy in situ. We find fast (within minutes) phase transitions to crystalline states directly after particle formation and characteristic ...Journal Article -
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A rating scheme for assessing the quality of computer-supported collaboration processes
(2007)International Journal of Computer-Supported Collaborative LearningJournal Article -
Adaptive fine-tuning of conlinear control systems with application to the urban traffic control strategy TUC
(2007)IEEE Transactions on Control Systems TechnologyJournal Article -
Neural Substrates of Contextual Interference during Motor Learning Support a Model of Active Preparation
(2007)Journal of Cognitive NeuroscienceWhen individuals acquire new skills, initial performance is typically better and tasks are judged to be easier when the tasks are segregated and practiced by block, compared to when different tasks are randomly intermixed in practice. However, subsequent skill retention is better for a randomly practiced group, an effect known as contextual interference (CI). The present study examined the neural substrates of CI using functional magnetic ...Journal Article -
Changing lanes: inertial cues and explicit path information facilitate steering performance when visual feedback is removed
(2007)Experimental Brain ResearchCan driver steering behaviors, such as a lane change, be executed without visual feedback? In a recent study with a fixed-base driving simulator, drivers failed to execute the return phase of a lane change when steering without vision, resulting in systematic final heading errors biased in the direction of the lane change. Here we challenge the generality of that finding. Suppose that, when asked to perform a lane (position) change, drivers ...Journal Article