Digital Commons Network^™

Visual Error Augmentation For Enhancing Motor Learning And Rehabilitative Relearning, Yejun Wei, Preeti Bajaj, Robert A. Scheidt, James L. Patton

Biomedical Engineering Faculty Research and Publications

We developed a real-time controller for a 2 degree-of-freedom robotic system using xPC Target. This system was used to investigate how different methods of performance error feedback can lead to faster and more complete motor learning in individuals asked to compensate for a novel visuo-motor transformation (a 30 degree rotation). Four groups of normal human subjects were asked to reach with their unseen arm to visual targets surrounding a central starting location. A cursor tracking hand motion was provided during each reach. For one group of subjects, deviations from the "ideal" compensatory hand movement (i.e. trajectory errors) were amplified with …

A Real-Time Haptic/Graphic Demonstration Of How Error Augmentation Can Enhance Learning, Yejun Wei, James L. Patton, Preeti Bajaj, Robert A. Scheidt

Biomedical Engineering Faculty Research and Publications

We developed a real-time controller for a 2 degree-of-freedom robotic system using xPC Target. This system was used to investigate how different methods of performance error feedback can lead to faster and more complete motor learning in individuals asked to compensate for a novel visuo-motor transformation (a 30 degree rotation). Four groups of human subjects were asked to reach with their unseen arm to visual targets surrounding a central starting location. A cursor tracking hand motion was provided during each reach. For one group of subjects, deviations from the “ideal” compensatory hand movement (i.e. trajectory errors) were amplified with a …

War And Uncertainty, Lori Fisler Damrosch

Faculty Scholarship

When the current phase of our conflict with Iraq began in March 2003, much was unknown. Our political leaders based the case for war on the conviction that Iraq possessed weapons of mass destruction (WMD) that had not been eliminated despite twelve years of grinding sanctions. Congress voted in October 2002 to authorize renewed use of military force against Iraq, acting on the basis of representations by the Bush Administration that Iraq had been actively concealing WMD stockpiles and programs from the United Nations inspectors who had a mandate to verify the complete destruction of Iraq's WMD capability. Facts were …

Introduction: Data Communication And Topology Algorithms For Sensor Networks, Stephan Olariu, David Simplot-Ryl, Ivan Stojmenovic

Computer Science Faculty Publications

(First paragraph) We are very proud and honored to have been entrusted to be Guest Editors for this special issue. Papers were sought to comprehensively cover the algorithmic issues in the “hot” area of sensor networking. The concentration was on network layer problems, which can be divided into two groups: data communication problems and topology control problems. We wish to briefly introduce the five papers appearing in this special issue. They cover specific problems such as time division for reduced collision, fault tolerant clustering, self-stabilizing graph optimization algorithms, key pre-distribution for secure communication, and distributed storage based on spanning trees …

Malaria Infection Increases Attractiveness Of Humans To Mosquitoes, Renaud Lacroix, Wolfgang R. Mukabana, Louis Clement Gouagna, Jacob C. Koella

All Peer-Reviewed Publications

Do malaria parasites enhance the attractiveness of humans to the parasite's vector? As such manipulation would have important implications for the epidemiology of the disease, the question has been debated for many years. To investigate the issue in a semi-natural situation, we assayed the attractiveness of 12 groups of three western Kenyan children to the main African malaria vector, the mosquito Anopheles gambiae. In each group, one child was uninfected, one was naturally infected with the asexual (non-infective) stage of Plasmodium falciparum, and one harboured the parasite's gametocytes (the stage transmissible to mosquitoes). The children harbouring gametocytes attracted about twice …

Functional Response Of Six Indigenous Trichogrammatid Egg Parasitoids (Hymenoptera: Trichogrammatidae) In Kenya: Influence Of Temperature And Relative Humidity, Andrew Kalyebi, W. A. Overholt, F. Schulthess, J. M. Mueke, S. A. Hassan, S. Sithanantham

All Peer-Reviewed Publications

Laboratory tests were conducted to evaluate the functional responses of six species/strains of native Kenyan trichogrammatids using the factitious pyralid host, Corcyra cephalonica, under different temperature and relative humidity regimes. The objective was to identify promising species/strains for controlling the noctuid Helicoverpa armigera, a serious pest of vegetables in Kenya. The six species/strains of Trichogramma and Trichogrammatoidea represented collections from low (<700 m), mid (between 700 and 1200 m) and high (>1200 m) altitude locations. They were compared for parasitisation rates at six temperatures (10, 15, 20, 25, 30 and 35°C) and two relative humidity levels (40-50% and 70-80%), at five host egg densities (6, 12, 18, 24, and …

Habitat Patch Occupancy Dynamics Of Glaucous-Winged Gulls (Larus Glaucescens) I: A Discrete-Time Model, Karl W. Phillips, Smruti P. Damania, James L. Hayward, Shandelle M. Henson, Clara J. Logan

Faculty Publications

Diurnal habitat occupancy dynamics of Glaucous-winged Gulls were evaluated in a system of six habitats on and around Protection Island, Washington. Data were collected on the rates of gull movement between habitat patches, and from these data the probabilities of transitions between habitats were estimated as functions of tide height and time of day. A discrete-time matrix model based on the transition probabilities was used to generate habitat occupancy predictions, which were then compared to hourly census data. All model parameters were estimated directly from data rather than through model fitting. The model made reasonable predictions for two of the …

Is Adventist Theology Compatible With Evolutionary Theory?, Fernando Canale

Perspective Digest

No abstract provided.

Natural Dissent: The Ethics Of Evolutionary Biology, Ronald Osborn

Andrews University Seminary Studies (AUSS)

No abstract provided.

Predicting Leadership And Performance In Uniformed Organisations Using The Five Factor Model Of Personality, Christopher John James Allender

School of Psychology Theses

Selection has been primarily focussed on the use of ability and aptitude measures as they have been shown to predict job performance in uniformed organisations. Personality assessment has largely been ignored as a possible contributor to improving predictions of performance. The emergence of the Five Factor Model as a framework for personality research, together with the development of the Trait Self Description Inventory (TSDI), has provided the opportunity to investigate how personality assessment might improve upon existing selection methods to predict performance in training. It was found that existing criterion measures did not fully reflect the core aims of the …

The Development And Implementation Of A Pilot Training Course In Pastoral Diagnosis For Six Pastors In The Lake Region Conference, Richard D.B. Sylvester

Doctor of Ministry Projects

Problem

This study was an examination of the counseling style of six pastors and to determine if they have a clearly defined method of informing their interventions.

Method

The task of this dissertation was to design a curriculum to train a pilot group of six pastors in the Lake Region Conference to do spiritual diagnoses and assessments and to have a better psychological understanding of diagnosing in their pastoral ministry. They learned how to integrate spirituality and psychology into their counseling. They were also taught some DSM-IV concepts and how to use the Global Assessment of Functioning (GAF) Scale.

I …

Planting Adventist Communities Of Faith Among Muslims In Unentered Areas Of The Balkans, Milan Bajic

Doctor of Ministry Projects

Problem

The purpose of this research was to develop and equip the church for the implementation of a workable strategy for reaching a large population of about eight million secular Muslims in the Balkans who have never been systematically confronted with the gospel.

Method

This study describes the history, culture, and religion of the Balkans, analyzes socioeconomic and political developments of its Muslim population, examines methods of evangelism and suggests a strategy based on sound biblical and missiological principles for work among the Balkan Muslims.

Results

The outcome of this project will be the development of a contextualized method for …

Adiabatic Behavior Of Strongly Nonlinear Internal Solitary Waves In Slope-Shelf Areas, V Vlasenko, L Ostrovsky, K Hutter

School of Biological and Marine Sciences

No abstract provided.

Generation Of Secondary Internal Waves By The Interaction Of An Internal Solitary Wave With An Underwater Bank, Vasiliy Vlasenko, Werner Alpers

School of Biological and Marine Sciences

No abstract provided.

Numerical Modelling Of Disintegration Of Basin-Scale Internal Waves In A Tank Filled With Stratified Water, N. Stashchuk, V. Vlasenko, K. Hutter

School of Biological and Marine Sciences

We present the results of numerical experiments performed with the use of a fully non-linear non-hydrostatic numerical model to study the baroclinic response of a long narrow tank filled with stratified water to an initially tilted interface. Upon release, the system starts to oscillate with an eigen frequency corresponding to basin-scale baroclinic gravitational seiches. Field observations suggest that the disintegration of basin-scale internal waves into packets of solitary waves, shear instabilities, billows and spots of mixed water are important mechanisms for the transfer of energy within stratified lakes. Laboratory experiments performed by D. A. Horn, J. Imberger and G. N. …

Using Incomplete Citation Data For Medline Results Ranking, Jorge R Herskovic, Elmer V Bernstam

Faculty, Staff and Student Publications

Information overload is a significant problem for modern medicine. Searching MEDLINE for common topics often retrieves more relevant documents than users can review. Therefore, we must identify documents that are not only relevant, but also important. Our system ranks articles using citation counts and the PageRank algorithm, incorporating data from the Science Citation Index. However, citation data is usually incomplete. Therefore, we explore the relationship between the quantity of citation information available to the system and the quality of the result ranking. Specifically, we test the ability of citation count and PageRank to identify "important articles" as defined by experts …

Persuasive Email Messages For Patient Communication, Muhammad Walji, Kathy Johnson-Throop, Todd Johnson, Elmer Bernstam, Jiajie Zhang

Faculty, Staff and Student Publications

To improve health and reduce costs, we need to encourage patients to make better health care decisions. Since email is widely available, it may be useful for patient-directed interventions. However, we know little about how the contents of an email message can influence a health-related decision. We propose a model to understand how patients may process persuasive email messages.

Is Obtaining An Arrestee's Dna A Valid Special Needs Search Under The Fourth Amendment? What Should (And Will) The Supreme Court Do?, Tracey Maclin

Faculty Scholarship

An increasing number of states are enacting laws authorizing the forcible taking and analysis of DNA from certain categories of arrestees. For example, California's Proposition 69 requires state law enforcement officials to obtain DNA samples from certain arrestees. By 2009, Proposition 69 will require a DNA sample from every adult arrested for or charged with a felony. This article addresses the constitutionality, under the Fourth Amendment, of taking DNA samples from persons subject to arrest. In particular, the article focuses on the statutes of Virginia and Louisiana, which have authorized DNA sampling of persons arrested for violent crimes and sex …

By Any Other Name?: On Being “Regarded As” Black, And Why Title Vii Should Apply Even If Lakisha And Jamal Are White, Angela Onwuachi-Willig, Mario L. Barnes

Faculty Scholarship

Forty years after the passage of Title VII, scholars Marianne Bertrand and Sendhil Mullainathan reported the results of their groundbreaking study, Are Emily and Greg More Employable Than Lakisha and Jamal? A Field Experiment on Labor Market Discrimination. Their study revealed that simply having an African American-sounding name significantly decreased one's opportunity to receive a job interview, regardless of occupation or industry. The results of Bertrand and Mullainathan's investigation raise critical questions about the effectiveness of Title VII as a remedy for race discrimination in the hiring market today, especially as employment discrimination has evolved into different forms. As shown …