Publications
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Modulation of Luciferase Activity Using High Intensity Focused Ultrasound in Combination with Bioluminescence Imaging, Magnetic Resonance Imaging and Histological Analysis in Muscle Tissue
This study investigates the effect of high intensity focused ultrasound (HIFU) to muscle tissue transfected with a luciferase reporter gene under the control of a CMV-promoter.
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Temporal Evolution of Neutral, Thermospheric Winds and Plasma Response Using PFISR Measurements of Gravity Waves
We analyze the temporal variability of the propagation and dissipation of two southeast (SE)ward-propagating gravity waves (GWs) observed by the Poker Flat Incoherent Scatter Radar (PFISR) on 13 December 2006.
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The PFISR IPY Observations of Ionospheric Climate and Weather
PFISR began its IPY campaign on 1 March 2007 and this paper describes the first 10 months of observations.
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Meteor-Head Echo Observations Using an Antenna Compression Approach with the 450 MHz Poker Flat Incoherent Scatter Radar
In this work we present a novel use of the Poker Flat Incoherent Scatter Radar (PFISR) to study meteor-head echoes with wide (W) beams.
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Spectral Observations of Polar Mesospheric Summer Echoes at 33 Cm (450 Mhz) with the Poker Flat Incoherent Scatter Radar
We report on multi-beam spectral observations of polar mesospheric summer echoes (PMSE) at 450 MHz (Bragg scattering wavelength of ∼33cm) carried out with the Poker Flat Incoherent Scatter Radar (PFISR)…
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Inside events in progress
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Signpost from the masses: learning effects in an exploratory social tag search browser
In this paper, we present the design of a tag-based exploratory system and detail an experiment in understanding its effectiveness.
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Remembrance of things tagged: How tagging effort affects tag production and human memory
We developed a low-effort interaction method called Click2Tag for social bookmarking. Information foraging theory predicts that the production of tags in will increase as the effort required to do so…
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Annotate once, appear anywhere: collective foraging for snippets of interest using paragraph fingerprinting
In this paper we report how we explore the idea of paragraph fingerprinting to achieve the goal of annotate once, appear anywhere in a social annotation system called SparTag.us.
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Using temporal patterns (T-Patterns) to derive stress factors of routine tasks
We describe the use of a statistical technique called T-pattern analysis to derive and characterize the routineness of tasks.
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With a little help from my friends: examining the impact of social annotations in sensemaking tasks
This paper presents a laboratory study aimed at evaluating the learning effect of social features in SparTag.us.
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What’s in Wikipedia? mapping topics and conflict using socially annotated category structure
In this paper we develop measures to map Wikipedia using its socially annotated, hierarchical category structure.