Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2009

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 26971 - 27000 of 27509

Full-Text Articles in Entire DC Network

Open Collaborative Mechanical / Product Design - User As Developer A New Design Methodology For Internet Era Business Innovations And Entrepreneurship, Jing Zheng Jan 2009

Open Collaborative Mechanical / Product Design - User As Developer A New Design Methodology For Internet Era Business Innovations And Entrepreneurship, Jing Zheng

All Theses and Dissertations (ETDs)

In product design and development projects, the most important part is identifying user needs. Traditional methods such as surveys, focus group studies and interviews are expensive and sometime inaccurate in identifying those needs. Inspired by the open source software development, along with the research that has been done on the "lead user" method, the method of using collective customer wisdom to modify old products or even develop new products has become an emerging new design method and is starting to get popularity and success. However, the effectiveness of such method comparing to the traditional face to face "close" development method …


Electrocorticographic Neural Correlates Of Arm Movements And Associated Goal Orientation In Humans, Nicholas Anderson Jan 2009

Electrocorticographic Neural Correlates Of Arm Movements And Associated Goal Orientation In Humans, Nicholas Anderson

All Theses and Dissertations (ETDs)

This thesis analyzed the cortical representation of arm kinematics, target encoding, and goal encoding using subdural electrocorticographic: ECoG) recordings in humans. Using a joystick-based visuomotor task, subjects performed both a standard, delayed match-to-sample center-out task as well as a circular tracing task. Spectral analyses of the ECoG signals clearly showed significant cosine tuning for hand velocity, direction, position and speed throughout the cortex. In particular, velocity tuning was best represented spectrally in a high gamma band from around 90-150 Hz in the primary motor cortical regions. In dorsolateral prefrontal cortex: DLPFC), cortical activity in the 150-250 Hz band of the …


Who Uses Community-Based Youth Shelters? An Inter-Group And Intra-Group Analysis, Jennifer Mcclendon Jan 2009

Who Uses Community-Based Youth Shelters? An Inter-Group And Intra-Group Analysis, Jennifer Mcclendon

All Theses and Dissertations (ETDs)

Community-based youth shelters are the primary method of intervention designed to meet the complex needs of at-risk youth who leave home before they have developed the skills to live independently. This research examines shelter users' patterns of cross-sector service use to better understand the needs and resources of shelter residents. The aims of this study are 1) to perform an inter-group analysis, comparing sheltered youth with status offense runaways and foster care runaways, and 2) to explore the population of emergency shelter residents using an intra-group analysis, determining whether distinct profiles of sheltered youth exist, based on individual characteristics and …


Associative Memory Processes In Schizophrenia, Aaron Bonner-Jackson Jan 2009

Associative Memory Processes In Schizophrenia, Aaron Bonner-Jackson

All Theses and Dissertations (ETDs)

Individuals with schizophrenia demonstrate cognitive deficits in a number of domains, including episodic memory: EM). Memory for both individual items and associations between items is impaired in schizophrenia, with some indication of a more severe deficit in associative memory. Furthermore, such memory impairments have been consistently linked with abnormalities in brain activation during both encoding and retrieval. However, certain experimental manipulations at the encoding and retrieval stages of EM significantly benefit memory performance in schizophrenia, suggesting that a strategic processing deficit may underlie memory impairment in schizophrenia. Additionally, the provision of beneficial encoding strategies increases encoding-related brain activity in key …


Discovery Of A Novel Metalloregular Family: Structure/Function Studies Of E. Coli Rcnr, Jeffrey Iwig Jan 2009

Discovery Of A Novel Metalloregular Family: Structure/Function Studies Of E. Coli Rcnr, Jeffrey Iwig

All Theses and Dissertations (ETDs)

The first row transition metal ions- Mn, Fe, Co, Ni, Cu and Zn are vital cofactors for proteins involved in diverse processes including photosynthesis, oxidative respiration and protein translation. Despite these essential functions, excess metal ions can lead to cell death through the generation of oxidative damage or the occupation of non-native metal sites. Acquiring metal ions from the environment while limiting possible toxic effects requires the coordinated regulation of metal uptake, trafficking and efflux, which in bacteria is often carried out by metal-responsive transcription factors: metalloregulators). Nickel homeostasis in E. coli is an ideal model system for understanding the …


Developing New Methodologies For Crosslinked Polymeric Nanostructure Syntheses, Chemoselective Modifications, And Applications As Imaging And Delivery Agents, Guorong Sun Jan 2009

Developing New Methodologies For Crosslinked Polymeric Nanostructure Syntheses, Chemoselective Modifications, And Applications As Imaging And Delivery Agents, Guorong Sun

All Theses and Dissertations (ETDs)

The overall emphasis of this dissertation research includes the syntheses of amphiphilic block copolymers bearing functional groups through controlled radical polymerization techniques, followed by the aqueous assembly of these block copolymer precursors to construct polymeric nanostructures with different sizes and morphologies. Further chemical modification of the nanostructures afforded functional crosslinked nano-objects with reporting probes for imaging and biocompatible "stealth" materials for tuning the in vivo fate of nanostructures. Amphiphilic block copolymers poly(acrylic acid)-block-polystyrene: PAA-b-PS) with well-defined structures were prepared through nitroxide-mediated radical polymerization: NMP). Using novel pre-functionalization strategies, these block copolymer precursors were functionalized with DOTA for chelating 64Cu and …


The Effect Of Limb Movement On The Lumbopelvic Region In People With Low Back Pain, Sara Scholtes Jan 2009

The Effect Of Limb Movement On The Lumbopelvic Region In People With Low Back Pain, Sara Scholtes

All Theses and Dissertations (ETDs)

Low back pain: LBP) affects up to 80% of the population at some point in their lifetime. Several models have been proposed to explain the persistent and recurrent course of LBP. In particular, the Movement System Impairment model proposes that lumbopelvic motion that begins soon after the start of an active movement is important to LBP because of its potential contribution to increased frequency of lumbopelvic motion across the day. The purpose of this dissertation is to examine aspects of this model, focusing specifically on lumbopelvic motion during limb movements. In Chapter 2, we examine whether men and women with …


Development Of Shell-Crosslinked Knedel-Like Nanoparticles As Intracellular Delivery Vehicles And Gene Regulation Agents, Ke Zhang Jan 2009

Development Of Shell-Crosslinked Knedel-Like Nanoparticles As Intracellular Delivery Vehicles And Gene Regulation Agents, Ke Zhang

All Theses and Dissertations (ETDs)

This dissertation focuses on the development of polymer-based nanomaterials, termed shell-crosslinked knedel-like: SCK) nanoparticles, as vehicles to carry specific guest molecules or guest structures into the cell. Detailed synthetic procedures for and characterization of well-defined block copolymers, as well as the nanostructures resulted from their self-assembly are reported. The nanoparticles exhibited different but controlled sizes and shapes, depending on the conditions for their preparation. To incorporate functionality into these materials, both pre- and post-particle functionalization methods, as well as their combination, were used. The nanostructures involved in this dissertation include protein transduction domain: PTD)-functionalized SCK, folate-functionalized SCK and cationic SCK: …


Professional Malpractice In A World Of Amateurs, Thomas D. Morgan Jan 2009

Professional Malpractice In A World Of Amateurs, Thomas D. Morgan

GW Law Faculty Publications & Other Works

An increasing number of tasks once reserved to lawyers are now being performed by non-lawyers. That reality seems likely to continue. The question then becomes against what standard of performance such “amateur” practice should be assessed. One answer might be that a non-lawyer should be guilty of malpractice if the work is performed below the level of quality to which a lawyer would be held. This paper argues that the work should instead be judged against the standard of performance the non-lawyer purported to be able to deliver.


Saving The Unitary Executive Theory From Those Who Would Distort And Abuse It: A Review Of The Unitary Executive, By Steven G. Calabresi And Christopher Yoo, Richard J. Pierce Jr Jan 2009

Saving The Unitary Executive Theory From Those Who Would Distort And Abuse It: A Review Of The Unitary Executive, By Steven G. Calabresi And Christopher Yoo, Richard J. Pierce Jr

GW Law Faculty Publications & Other Works

Calabresi and Yoo make three important contributions to the literature on separation of powers in their new book. First, they seek to rescue the unitary executive theory from the Bush Administration lawyers who have discredited the theory in the eyes of many by relying on it to support outlandish claims of presidential power that are unrelated to the unitary executive theory. Second, they make a persuasive case for the unitary executive theory by explaining why a president must have the power to remove executive branch officers and to control policy making in the executive branch. Third, they document the ways …


Making Sense Of Procedural Injury, Richard J. Pierce Jr Jan 2009

Making Sense Of Procedural Injury, Richard J. Pierce Jr

GW Law Faculty Publications & Other Works

This essay uses the Supreme Court’s 2009 opinion describing the version of the harmless error rule courts must use in administrative law cases as a point of entry in attempting to understand the Court’s 1992 opinion recognizing that 'procedural rights are special' for standing purposes. It concludes that courts should apply an easy-to-meet plausibility test in determining whether an agency’s refusal to provide a procedure required by statute or by the constitution has a causal relationship with the challenged agency action sufficient to allow the petitioner to obtain review of the action based on a procedural injury theory. Such a …


A Terminological Matter: Paragenesis, Antigravitative Erosion Or Antigravitational Erosion?, Giancarlo Pasini Jan 2009

A Terminological Matter: Paragenesis, Antigravitative Erosion Or Antigravitational Erosion?, Giancarlo Pasini

International Journal of Speleology

In the speleological literature three terms are utilized to designate the “ascending erosion”: paragenesis (= paragénésis, coined in 1968), antigravitative erosion (= erosione antigravitativa, coined in 1966) and antigravitational erosion (wrong English translation of the Italian term erosione antigravitativa, utilized later on). The term paragenesis should be abandoned because of the priority of the term erosione antigravitativa - on the ground of the “law of priority” – and because of its ambiguous etimology. On the other hand, the term antigravitational erosion should be forsaken in favour of the term antigravitative erosion, given the meaning that the terms gravitation and gravity …


Measurement Of Beauty Photoproduction Using Decays Into Muons In Dijet Events At Hera, S. Chekanov, M. Derrick, S. Magill, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, G. Iacobucci, A. Margotti, R. Nania, A. Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, I. Brock, H. Hartmann Jan 2009

Measurement Of Beauty Photoproduction Using Decays Into Muons In Dijet Events At Hera, S. Chekanov, M. Derrick, S. Magill, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, G. Iacobucci, A. Margotti, R. Nania, A. Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, I. Brock, H. Hartmann

Faculty Publications

Beauty photoproduction in dijet events has been measured at HERA with the ZEUS detector using an integrated luminosity of 126 pb-1. Beauty was identified in events with a muon in the final state by using the transverse momentum of the muon relative to the closest jet. Lifetime information from the silicon vertex detector was also used; the impact parameter of the muon with respect to the primary vertex was exploited to discriminate between signal and background. Cross sections for beauty production as a function of the muon and the jet variables as well as dijet correlations are compared to QCD …


Investigating The Relationship Between Teacher Self-Efficacy Beliefs In Mathematics And Teacher Reflection: Do Teacher Thinking Dispositions Play A Moderating Role?, Shawna Hufendick Jan 2009

Investigating The Relationship Between Teacher Self-Efficacy Beliefs In Mathematics And Teacher Reflection: Do Teacher Thinking Dispositions Play A Moderating Role?, Shawna Hufendick

Dissertations and Theses @ UNI

Previous research has shown a relationship between teacher reflection and teacher acceptance of reform curricula. This study looked at the relationship between the variables of teacher self efficacy and teacher reflection, as they might relate to teacher attitudes towards instructional change. This study also looked at whether teacher thinking dispositions moderate this relationship. First and second grade teachers (N=l6) participating in a professional development opportunity in mathematics completed an efficacy measure, a thinking dispositions measure, and kept a journal to reflect after mathematics lessons taught. The teacher efficacy, thinking disposition, and journal reflection data was analyzed to see whether relationships …


Analysis Of Factors Causing Failure Mode For Automotive Hitch Control System Calibration In Agriculture Equipment, Setordji Yao Abotsi Jan 2009

Analysis Of Factors Causing Failure Mode For Automotive Hitch Control System Calibration In Agriculture Equipment, Setordji Yao Abotsi

Dissertations and Theses @ UNI

Traditionally, agricultural tractors have used hydro-mechanical draft control systems to mechanically sense implement draft. Technological development of low cost, reliable microprocessors has contributed to allowing greater flexibility in designing agricultural tractor control systems (Rutkowski & Welchens, 1986). To successfully control the depth of which an implement penetrates the ground, it has become imperative to incorporate a draft control system on agricultural tractors. The control system operates by responding to the draft load or force acting on the tractor. Increasing the draft load or force allows the implement to be raised and decreasing the draft load or force allows the implement …


The Effects Of Indian-Accented English And Need For Cognition On Message Evaluation: A Field Study, Duoc V. Nguyen Jan 2009

The Effects Of Indian-Accented English And Need For Cognition On Message Evaluation: A Field Study, Duoc V. Nguyen

Dissertations and Theses @ UNI

Research has shown that Americans rate non-accented English speakers more favorably than accented English speakers (e.g., Cargile & Giles, 1997; Frumkin, 2007); however this is not always the case ( e.g., Cargile, 2000; Singer & Eder, 1988). Other factors may be involved when people are processing other people's messages. One motivating factor may be the extent to which people like to think, or have a high need for cognition (NCS; Cacioppo & Petty, 1982). As call center jobs continue to be outsourced to other countries such as India, it is important to ascertain how people with varying degrees of motivation …


A Case Study Of A Rural Iowa School Preparing To Meet New State Guidelines For School Libraries, Karla Steege Krueger Jan 2009

A Case Study Of A Rural Iowa School Preparing To Meet New State Guidelines For School Libraries, Karla Steege Krueger

Curriculum & Instruction Faculty Publications

A qualitative case study highlighting one rural Iowa elementary school provided insight into the issue of small schools without library programs as they are preparing to meet the Iowa reinstatement of the requirement for school library programs. The site was purposefully chosen because it has been operating without a school library program or professional teacher-librarian district-wide. All eight teachers and the nonendorsed library associate from one elementary school participated in either a focus group or semistructured interviews. The four district administrators were interviewed individually. Related documents were consulted. This study examined the status of the school library program, analyzed the …


Flores-Figueroa V. United States Jan 2009

Flores-Figueroa V. United States

Postville Project Documents

The opinion of the United States Supreme Court in the case of Ignacio Carlos Flores-Figueroa, whose lawyers argued that he didn't know the Social Security number and alien registration card number were assigned to other people.


Only One Quarterback, Stacey Galles Jan 2009

Only One Quarterback, Stacey Galles

Graduate Research Papers

Only One Quarterback is a concept book about the game of football using photographs from the Remsen-Union Rocket football program introducing preschool children to the basic concepts of football and relating those concepts to the numbers they are learning. Each number introduces a different football concept. The text is written for the comprehension of preschool children. The words and photographs work together to give a full picture of the football concepts. The book is designed to help children become interested in reading and learning about the game of football. There are few football counting books written especially for preschool children. …


Cycles Within Cycles: Mini-Cycles In Robert Olen Butler's Fiction, Allan Weiss Jan 2009

Cycles Within Cycles: Mini-Cycles In Robert Olen Butler's Fiction, Allan Weiss

Short Story

No abstract provided.


Review Of The Global Village, Ronny Noor Jan 2009

Review Of The Global Village, Ronny Noor

Short Story

No abstract provided.


Mezzotext: Haunting Objects In M. R. James And Thomas Hardy, Luke Thurston Jan 2009

Mezzotext: Haunting Objects In M. R. James And Thomas Hardy, Luke Thurston

Short Story

No abstract provided.


Object Reuse And Exchange, Michael L. Nelson, Carl Lagoze, Herbert Van De Sompel, Pete Johnston, Robert Sanderson, Simeon Warner, Jürgen Sieck (Ed.), Michael A. Herzog (Ed.) Jan 2009

Object Reuse And Exchange, Michael L. Nelson, Carl Lagoze, Herbert Van De Sompel, Pete Johnston, Robert Sanderson, Simeon Warner, Jürgen Sieck (Ed.), Michael A. Herzog (Ed.)

Computer Science Faculty Publications

The Open Archives Object Reuse and Exchange (OAI-ORE) project defines standards for the description and exchange of aggregations of Web resources. The OAI-ORE abstract data model is conformant with the Architecture of the World Wide Web and leverages concepts from the Semantic Web, including RDF descriptions and Linked Data. In this paper we provide a brief review of a motivating example and its serialization in Atom.


Angelic Demons: Witchcraft And Sorcery In Chaucer's The Canterbury Tales, Melanie Bussiere Jan 2009

Angelic Demons: Witchcraft And Sorcery In Chaucer's The Canterbury Tales, Melanie Bussiere

Seton Hall University Dissertations and Theses (ETDs)

.


“In The Shadow Of A Concrete Forest”: Transportation Politics In Portland, Oregon, And The Revolt Against The Mount Hood Freeway, 1955-1976, Val C. Ballestrem Jan 2009

“In The Shadow Of A Concrete Forest”: Transportation Politics In Portland, Oregon, And The Revolt Against The Mount Hood Freeway, 1955-1976, Val C. Ballestrem

Dissertations and Theses

In 1955, The Oregon State Highway Department helped usher in the freeway building era in Portland by publishing its plan for 14 modern freeways designed to crisscross the city. A major component of that report was the Mount Hood Freeway, a route designed to pass through southeast Portland, connecting the city to its expanding eastern suburbs. Other freeway routes in the Portland area were given precedence over the Mount Hood Freeway and by 1969, when the route obtained federal interstate status, urban freeways across the nation had become highly controversial. Over the next seven years a struggle ensued pitting those …


Probabilistic Movement Model With Emigration Simulates Movements Of Deer In Nebraska, 1990–2006, Charles J. Frost, Scott E. Hygnstrom, Andrew J. Tyre, Kent M. Eskridge, David M. Baasch, Justin R. Boner, Gregory M. Clements, Jason M. Gilsdorf, Travis C. Kinsell, Kurt C. Vercauteren Jan 2009

Probabilistic Movement Model With Emigration Simulates Movements Of Deer In Nebraska, 1990–2006, Charles J. Frost, Scott E. Hygnstrom, Andrew J. Tyre, Kent M. Eskridge, David M. Baasch, Justin R. Boner, Gregory M. Clements, Jason M. Gilsdorf, Travis C. Kinsell, Kurt C. Vercauteren

School of Natural Resources: Faculty Publications

Movements of deer can affect population dynamics, spatial redistribution, and transmission and spread of diseases. Our goal was to model the movement of deer in Nebraska in an attempt to predict the potential for spread of chronic wasting disease (CWD) into eastern Nebraska. We collared and radio-tracked >600 white-tailed deer (Odocoileus virginianus) and mule deer (Odocoileus hemionus) in Nebraska during 1990–2006.We observed large displacements (>10 km) for both species and sexes of deer, including migrations up to 100 km and dispersals up to 50 km. Average distance traveled between successive daily locations was 166m for …


It Depends, Gary S. Lawson Jan 2009

It Depends, Gary S. Lawson

Faculty Scholarship

Peter Strauss stated at the outset of this Symposium that the participants were chosen in part for the likelihood that they would generate “intelligent disagreement.” By that standard, I may have been a poor choice--and if that is the case, I will leave it to the reader to determine whether it is a function of the first or second term in the quoted phrase. At first glance, it looks as though I sharply disagree with Rick Pildes and Harold Bruff about whether the PCAOB's members are principal officers who must be appointed by the President with the advice and consent …


The Place Of History And Philosophy In The Moral Reading Of The American Constitution, James E. Fleming Jan 2009

The Place Of History And Philosophy In The Moral Reading Of The American Constitution, James E. Fleming

Faculty Scholarship

Dworkin argues that commitment to interpretive fidelity requires that we recognize that the Constitution embodies abstract moral principles rather than laying down a particular historical conception, and that interpreting those principles requires fresh judgments of political theory about how they are best understood. This interpretive strategy — Dworkin's ‘moral reading’ of the Constitution — stands in opposition to the narrow originalists' claim that interpretive fidelity requires following the rules laid down by the framers of the Constitution. Some theorists have responded to the originalists by attempting to carve out an intermediate theory between narrow originalism and the moral reading. Dworkin …


Protecting Hiv Positive Women’S Human’S Rights: Recommendations For The Obama Administration, Aziza Ahmed, Catherine Hanssens, Brook Kelly Jan 2009

Protecting Hiv Positive Women’S Human’S Rights: Recommendations For The Obama Administration, Aziza Ahmed, Catherine Hanssens, Brook Kelly

Faculty Scholarship

To bring the United States in line with prevailing human rights standards, its National HIV/AIDS Strategy will need to explicitly commit to a human rights framework when developing programmes and policies that serve the unaddressed needs of women. This paper focuses on two aspects of the institutionalized mistreatment of people with HIV: 1) the criminalization of their consensual sexual conduct; and 2) the elimination of informed and documented consensual participation in their diagnosis through reliance on mandatory and opt-out testing policies. More than half of US states have HIV-specific laws criminalizing the consensual sexual activity of people with HIV, regardless …


Answering The Millennium Call For The Right To Maternal Health: The Need To Eliminate User Fees, Margaux J. Hall, Aziza Ahmed, Stephanie E. Swanson Jan 2009

Answering The Millennium Call For The Right To Maternal Health: The Need To Eliminate User Fees, Margaux J. Hall, Aziza Ahmed, Stephanie E. Swanson

Faculty Scholarship

Complications during childbirth and pregnancy are a main source of death and disability among women of reproductive age. Approximately 536,000 women die from pregnancy-related complications each year. Developing countries suffer most profoundly, accounting for 99% of deaths. The world's nations, by endorsing U.N. Millennium Development Goals, recognized that most deaths are preventable; they have pledged to reduce maternal mortality by 75% by 2015. This Article assesses the barriers presented by user fees - formal charges for health services still charged by many countries - to the attainment of MDGs. It shows that user fees hamper healthcare access, particularly in emergency …