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2010

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Behind The Mask: The Influence Of Mask-Type On Amygdala Response To Fearful Faces, M Justin Kim, Rebecca A. Loucks, Maital Neta, F. Caroline Davis, Jonathan A. Oler, Emily C. Mazzulla, Paul J. Whalen Feb 2010

Behind The Mask: The Influence Of Mask-Type On Amygdala Response To Fearful Faces, M Justin Kim, Rebecca A. Loucks, Maital Neta, F. Caroline Davis, Jonathan A. Oler, Emily C. Mazzulla, Paul J. Whalen

Dartmouth Scholarship

In this study, we compared the effects of using neutral face masks vs non-face pattern masks on amygdala activity to masked fearful faces. Twenty-seven subjects viewed 18 s blocks of either fearful or happy faces masked with either neutral faces or patterns, while their brain activity was measured using functional magnetic resonance imaging. Results replicated increased amygdala activation to face-masked fearful vs happy faces. In the pattern mask condition, the amygdala discriminated between masked fearful and happy faces, but this effect manifested as a decrease in activation to fearful faces compared to happy faces. This interactive effect between facial expression …

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Mustang Daily, February 9, 2010 Feb 2010

Mustang Daily, February 9, 2010

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

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Social Emotional Assessment Of Infants At-Risk Using The Ages And Stages Questionnaire Social Emotional (Asq:Se), Myriah Koledin Feb 2010

Social Emotional Assessment Of Infants At-Risk Using The Ages And Stages Questionnaire Social Emotional (Asq:Se), Myriah Koledin

Occupational Therapy ETDs

Purpose: The purpose of the current study is to examine relationships between parent completed scores of full term and preterm infants on two standardized questionnaires: 1) Ages and Stages Questionnaire (ASQ) measuring all areas of development and 2) Ages and Stages Questionnaire Social Emotional (ASQ-SE) measuring social-emotional development. Methods: Participants included parents of 25 preterm infants who were referred to UNMH Special Baby Clinic and 25 term infants. Parents filled out the ASQ and the ASQ:SE as well as a Social History Questionnaire. Results: No significant correlations were found between individual ASQ domains with the ASQ:SE for separate groups of …

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Constraint Induced Movement Therapy : A Longitudinal Case Study, Sarah Renee Mcmillan Feb 2010

Constraint Induced Movement Therapy : A Longitudinal Case Study, Sarah Renee Mcmillan

Occupational Therapy ETDs

Purpose. Constraint-induced movement therapy (CIMT) involves use of a constraint on the non-affected extremity and intensive therapy comprised of shaping and repetition during functional activities to improve quality and quantity of use of the affected extremity. The literature has shown that CIMT is effective and two articles support the use of 2 doses of CIMT. The current study investigated if 3 doses of CIMT over 5 years continued to produce improvements in functional use for a boy with hemiplegic cerebral palsy (CP). Methods. One child, with spastic hemiplegic CP, met inclusion criteria of a minimum of 20° of active wrist …

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Charge Switch Nucleotides, John G. K. Williams, Gregory R. Bashford, Jiyan Chen, Dan Draney, Nara Narayanan, Bambi L. Reynolds, Pamela Sheaff Feb 2010

Charge Switch Nucleotides, John G. K. Williams, Gregory R. Bashford, Jiyan Chen, Dan Draney, Nara Narayanan, Bambi L. Reynolds, Pamela Sheaff

Biomedical Imaging and Biosignal Analysis Laboratory

The present invention provides compounds, methods and systems for sequencing nucleic acid using single molecule detection. Using labeled NPs that exhibit charge-switching behavior, single-molecule DNA sequencing in a microchannel sorting system is realized. In operation, sequencing products are detected enabling real-time sequencing as successive detectable moieties flow through a detection channel. By electrically sorting charged molecules, the cleaved product molecules are detected in isolation Without interference from unincorporated NPs and Without illuminating the polymerase-DNA complex.

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The Bates Student - Volume 139 Number 12 - February 9, 2010, Bates College Feb 2010

The Bates Student - Volume 139 Number 12 - February 9, 2010, Bates College

The Bates Student

No abstract provided.

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February 9, 2010, James Madison University Feb 2010

February 9, 2010, James Madison University

The Breeze, 2010-2019

The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.

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Distributed, Adaptive Deployment For Nonholonomic Mobile Sensor Networks : Theory And Experiments, Jose Marcio Luna-Castaneda Feb 2010

Distributed, Adaptive Deployment For Nonholonomic Mobile Sensor Networks : Theory And Experiments, Jose Marcio Luna-Castaneda

Electrical and Computer Engineering ETDs

In this work we show the Lyapunov stability and convergence of an adaptive and decentralized coverage control for a team of mobile sensors. This new approach assumes nonholonomic sensors rather than the usual holonomic sensors found in the literature. The kinematics of the unicycle model and a nonlinear control law in polar coordinates are used in order to prove the stability of the controller applied over a team of mobile sensors. This controller is adaptive, which means that the mobile sensors are able to estimate and map a density function in the sampling space without a previous knowledge of the …

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Information Similarity Metrics In Information Security And Forensics, Tu-Thach Quach Feb 2010

Information Similarity Metrics In Information Security And Forensics, Tu-Thach Quach

Electrical and Computer Engineering ETDs

We study two information similarity measures, relative entropy and the similarity metric, and methods for estimating them. Relative entropy can be readily estimated with existing algorithms based on compression. The similarity metric, based on algorithmic complexity, proves to be more difficult to estimate due to the fact that algorithmic complexity itself is not computable. We again turn to compression for estimating the similarity metric. Previous studies rely on the compression ratio as an indicator for choosing compressors to estimate the similarity metric. This assumption, however, is fundamentally flawed. We propose a new method to benchmark compressors for estimating the similarity …

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Maternal Investment Influences Expression Of Resource Polymorphism In Amphibians: Implications For The Evolution Of Novel Resource-Use Phenotypes, Ryan A. Martin Feb 2010

Maternal Investment Influences Expression Of Resource Polymorphism In Amphibians: Implications For The Evolution Of Novel Resource-Use Phenotypes, Ryan A. Martin

Faculty Scholarship

Maternal effects - where an individual's phenotype is influenced by the phenotype or environment of its mother - are taxonomically and ecologically widespread. Yet, their role in the origin of novel, complex traits remains unclear. Here we investigate the role of maternal effects in influencing the induction of a novel resource-use phenotype. Spadefoot toad tadpoles, Spea multiplicata, often deviate from their normal development and produce a morphologically distinctive carnivore-morph phenotype, which specializes on anostracan fairy shrimp. We evaluated whether maternal investment influences expression of this novel phenotype. We found that larger females invested in larger eggs, which, in turn, produced …

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The Daily Gamecock, Tuesday, February 9, 2010, University Of South Carolina, Office Of Student Media Feb 2010

The Daily Gamecock, Tuesday, February 9, 2010, University Of South Carolina, Office Of Student Media

February

No abstract provided.

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Methods And Kit For Determination Of Prostacyclin In Plasma, Sylvia Daunert, Michael Poon, Urvee Desai, Sapna K. Deo Feb 2010

Methods And Kit For Determination Of Prostacyclin In Plasma, Sylvia Daunert, Michael Poon, Urvee Desai, Sapna K. Deo

Chemistry Faculty Patents

A solid-phase immunoassay for 6-keto-Prostaglandin F1α, the stable hydrolysis product of prostacyclin (Prostaglandin I2) is disclosed. Prostacyclin, a potent vasodilator with anti-platelet and anti-proliferative properties is an effective treatment for primary pulmonary hypertension and pulmonary arterial hypertension associated with scleroderma and scleroderma-like syndrome. Levels of 6-keto-Prostaglandin F1α can be directly correlated with levels of prostacyclin. Therefore, 6-keto-Prostaglandin F1α has become the indicator of choice to measure prostacyclin levels. The single step immunoassay for 6-keto-Prostaglandin F1α uses the bioluminescent protein, aequorin as a label. Analyte-label conjugates were constructed by linking the carboxyl group of …

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College Voice Vol. 34 No. 11, Connecticut College Feb 2010

College Voice Vol. 34 No. 11, Connecticut College

2009-2010

No abstract provided.

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Daily Eastern News: February 09, 2010, Eastern Illinois University Feb 2010

Daily Eastern News: February 09, 2010, Eastern Illinois University

February

No abstract provided.

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Biogeomorphology And Soil Geomorphology Of Small Semiarid Basins, Northeastern Arizona : Influences Of Topoclimate And Climate Variations, Leah M. Roberts Feb 2010

Biogeomorphology And Soil Geomorphology Of Small Semiarid Basins, Northeastern Arizona : Influences Of Topoclimate And Climate Variations, Leah M. Roberts

Earth and Planetary Sciences ETDs

In northeastern Arizona, on the Colorado Plateau, landscapes associated with weakly cemented sandstones are sensitive to Holocene climate changes on millennial to decadal scales. It is hypothesized that these climate changes affect processes of weathering, erosion and plant community establishment on hillslopes in this semiarid environment. In small basins formed at the base of Black Mesa escarpment west of Chinle, Arizona, Jurassic sandstones cemented mainly by clay minerals weather by hydration, favoring relatively high erodibility. Two end member slope forms related to aspect-induced topoclimates are present in this area: (1) transport-limited slopes mantled by 10-20 cm of weathered materials and …

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An Application Of Dynamic Economic Systems To The Gold Market, Rohnn Sanderson Feb 2010

An Application Of Dynamic Economic Systems To The Gold Market, Rohnn Sanderson

Economics ETDs

An Application of Dynamic Economic Systems to the Gold Market

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Stable Isotope Sourcing Using Sampling, Erik Erhardt Feb 2010

Stable Isotope Sourcing Using Sampling, Erik Erhardt

Mathematics & Statistics ETDs

Stable isotope sourcing is used to estimate proportional contributions of sources to a mixture, such as in the analysis of animal diets, plant nutrient use, geochemistry, pollution, and forensics. We focus on animal ecology because of the particular complexities due to the process of digestion and assimilation. Parameter estimation has been a challenge because there are often many sources and few isotopes leading to an underconstrained linear system for the diet probability vector. This dissertation offers three primary contributions to the mixing model community. (1) We detail and provide an R implementation of a better algorithm (SISUS) for representing possible …

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Templated Growth Of Platinum Nanostructures, Robert Garcia Feb 2010

Templated Growth Of Platinum Nanostructures, Robert Garcia

Chemical and Biological Engineering ETDs

Novel platinum nanostructures were synthesized by templating the growth of platinum on treated polymer surfaces and within disk-like aqueous bicellar assemblies. The growth mechanisms of all structures were examined in detail. Platinum hollow nanospheres with uniform shell thickness were prepared by the seeded growth of platinum on the surface of latex beads with an adsorbed porphyrin photocatalyst followed by core removal. Templating bicelles of a high yield were synthesized for the first time and verified by electron microscopy. Dendritic platinum nanowheels were obtained as a result of confined growth within the bicellar interior. Sintering experiments revealed an unusual stability of …

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A Feminist Approach To Understanding Esl Identity Development: A Case Study Of Korean Women In U.S. Universities, Seonsook Park Feb 2010

A Feminist Approach To Understanding Esl Identity Development: A Case Study Of Korean Women In U.S. Universities, Seonsook Park

Language, Literacy, and Sociocultural Studies ETDs

Current literature and approaches to identity construction within L2 contexts often fail or underemphasize the important roles that strategic identity and discursive-place identity play in second language acquisition processes. This study explores how education, English discourse, and American cultures affect the identities of three female Korean graduate students in American institutions. The theoretical approach of this project integrated elements from sociocultural theory and feminist research methodology. The participants narratives, collected via interviews and email exchanges over a period of a year, have revealed that when these ESL students moved from their native country, Korea, to America, they were not only …

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Criticality Alarm System Design Guide With Accompanying Alarm System Development For The Radiochemical Processing Laboratory In Richland, Washington, Bryce Greenfield Feb 2010

Criticality Alarm System Design Guide With Accompanying Alarm System Development For The Radiochemical Processing Laboratory In Richland, Washington, Bryce Greenfield

Nuclear Engineering ETDs

A detailed instructional manual was created to guide criticality safety engineers through the process of designing a criticality alarm system (CAS) for Department of Energy (DOE) hazard class 1 and 2 facilities. Regulatory and technical requirements were both addressed. A list of design tasks and technical subtasks was compiled and analyzed to provide concise direction for how to complete the analysis. An example of the application of the design methodology, the Criticality Alarm System developed for the Radiochemical Processing Laboratory (RPL) of Richland, Washington is also included. The analysis for RPL utilized the Monte Carlo code MCNP5 for establishing detector …

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Bioagent Defeat In Shock Driven Gas Flow, Mario L. Chavez Feb 2010

Bioagent Defeat In Shock Driven Gas Flow, Mario L. Chavez

Mechanical Engineering ETDs

The problem of planar shock interaction with gas cylinders whose axis of symmetry is parallel to the plane of the shock has been well studied both experimentally and numerically, and in this case, the flow evolution driven by Richtmyer-Meshkov instability is well characterized (although, as this thesis shows, assumptions commonly made about the experimental conditions need to be carefully checked). However, for a similar oblique interaction, with the plane of the shock and the axis of the density interface being non-parallel, presently only numerical results exist. The problem of oblique shock interaction is quite interesting to study experimentally both because …

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Development Of Novel Synthetic Methodologies And Their Use In Approaches For The Preparation Of Lactacystin, Lepadiformine And A Giardia Lamblia Fructose-1,6-Bisphosphate Aldolase Inhibitor, Jiwen Zou Feb 2010

Development Of Novel Synthetic Methodologies And Their Use In Approaches For The Preparation Of Lactacystin, Lepadiformine And A Giardia Lamblia Fructose-1,6-Bisphosphate Aldolase Inhibitor, Jiwen Zou

Chemistry and Chemical Biology ETDs

The investigations carried out in my doctoral studies focus on (1) applications of pyridinium salt photochemical and tandem ene-yne-ene metathesis reactions to the synthesis of the natural products (+)-lactacystin and lepadiformine C, and (2) the preparation of a novel inhibitor for the class II Giardia lamblia fructose-1,6-bisphosphate aldolase. New developments in the area of pyridinium salt photochemistry were explored in the context of approaches to the natural product (+)-lactacystin. The results of this effort show that irradiation of a substituted 1,2-cyclopenta-fused pyridinium salt in aqueous solution followed by treatment with sodium bicarbonate leads to selective production of an unusual, structural …

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Development Of Novel Fluorescent Sensors For The Detection Of Functional And Bio-Interesting Small Molecules And Metal Ions, Wei Jiang Feb 2010

Development Of Novel Fluorescent Sensors For The Detection Of Functional And Bio-Interesting Small Molecules And Metal Ions, Wei Jiang

Chemistry and Chemical Biology ETDs

As one important kind of sensitive analytical technology, fluorescence method is widely applied in environmental science, materials, medicine pharmacy and nowadays much popularly in cellular biological science, which requires the development of diverse fluorescent sensors to meet various analytical and researching demands. During my Ph.D. study, my work focuses on the development of novel fluorescent sensors for the detection and specific recognition of functional and bio-interesting small molecules and metal ions, and the contents are described in this dissertation using three sections. In the first part, novel fluorescent sensors for the specific recognition of bio-toxic thiophenols have been developed based …

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Investigation Of Co2 Insertion Into Lanthanide Amides, Alkoxides, And Mixed Amide/Alkoxides, Leigh Anna M. Ottley Feb 2010

Investigation Of Co2 Insertion Into Lanthanide Amides, Alkoxides, And Mixed Amide/Alkoxides, Leigh Anna M. Ottley

Chemistry and Chemical Biology ETDs

A novel set of lanthanide (Ln) alkoxycarbonates, [Ln(μ-CO2-DBP)(DBP)2]2 where Ln = lanthanide; and DBP = OC6H3-2,6-C(CH3)3, were isolated from a systematic study of the insertion of CO2(g) (referred to as CO2) into the Ln-O bonds of a series of new lanthanide alkoxides, Ln(OR)3. This study was undertaken to determine if the deleterious metal carbonate [M(CO3)y] formation that promotes higher thermal budgets during processing could be avoided. While processing controls can reduce the formation of the M(CO3) …

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Synthesis And Evaluation Of Rare-Earth Doped Glasses And Crystals For Optical Refrigeration, Wendy Marie Patterson Feb 2010

Synthesis And Evaluation Of Rare-Earth Doped Glasses And Crystals For Optical Refrigeration, Wendy Marie Patterson

Optical Science and Engineering ETDs

This research focused on developing and characterizing rare-earth doped, solid-state materials for laser cooling. In particular, the work targeted the optimization of the laser-cooling efficiency in Yb3+ and Tm3+ doped fluorides. The first instance of laser-induced cooling in a Tm3+-doped crystal, BaY2F8 was reported. Cooling by 3 degrees Kelvin below ambient temperature was obtained in a single-pass pump geometry at λ = 1855 nm. Protocols were developed for materials synthesis and purification which can be applied to each component of ZBLANI:Yb3+/Tm3+ (ZrF4 — BaF2 — LaF3 — AlF3 — NaF — InF3: YbF3/TmF3) glass to enable a material with significantly …

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Nonlinear Microscopy For Material Characterization, Reed Alan Weber Feb 2010

Nonlinear Microscopy For Material Characterization, Reed Alan Weber

Optical Science and Engineering ETDs

Making use of femtosecond laser sources, nonlinear microscopy exhibits inherent 3- dimensional optical sectioning and provides access to previously unstudied aspects of materials. By probing third order nonlinear optical signals determined by the nonlinear susceptibility (chi-3), which is present in all materials, we gain insight not available by conventional linear or electron microscopy. Third-harmonic generation (THG) and four-wave mixing (FWM) microscopy are used to investigate fundamental material parameters. THG microscopy is applied to supplement damage studies of optical coatings by imaging laser induced material modification both above and below damage threshold conditions in HfO2 thin-films. FWM microscopy is employed to …

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White Bodies, Black Gaze: Constructions Of White Masculinity In White-Male Elite Discourses On Leadership And Diversity, Christopher Brown Feb 2010

White Bodies, Black Gaze: Constructions Of White Masculinity In White-Male Elite Discourses On Leadership And Diversity, Christopher Brown

Communication ETDs

This study examines white-male elite understandings of diversity and leadership to consider possibilities for exploring articulations of white masculinity. Sixteen semi-structured interviews were conducted with white-male leaders in their organizations who by virtue of their race, gender, class, and education, exercise much power and control in their organization. I used grounded theory methodology to highlight the communication strategies that white-male elites employed when talking about leadership and diversity. Techniques in grounded theory methodology yielded concepts, descriptors, and semantic moves that were articulated to intersecting discourses of race, gender, and sexuality. Through the intersectional matrix, I posited that multiple functions of …

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Institutional Ethnography: How Tenured Academic Women Talk About Success, Martina H. Myers Feb 2010

Institutional Ethnography: How Tenured Academic Women Talk About Success, Martina H. Myers

Communication ETDs

This institutional ethnography on tenured academic women focused on how twenty women talked about success. The purpose of this study was to use the discourse of tenured academic women to illustrate social interactions that constitute and transform the ruling relations. Institutional ethnography, a feminist methodology, inherently explores where communicative text provides insight into the larger structures of the ruling relations that govern, educate, train and inform. The information provided by tenured academic women, through in-depth one-on-one interviews and participant observation illuminated the fluid power dynamics of academic women in the gendered discursive organization of the academy. The women respondents described …

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Hispanos In The Valley Of Death: Street-Level Trauma, Cultural-Post Traumatic Stress Disorder, Overdoses, And Suicides In North Central New Mexico, W. Azul La Luz Baez Feb 2010

Hispanos In The Valley Of Death: Street-Level Trauma, Cultural-Post Traumatic Stress Disorder, Overdoses, And Suicides In North Central New Mexico, W. Azul La Luz Baez

Sociology ETDs

New Mexico has had the highest per capita drug overdose death rate in the United States, about 18 per 100,000, for more than ten years — 1995 to 2006. The USA's rates for the same period are about 5 per 100,000. North Central New Mexico (the Valley) has the highest per capita 'accidental drug overdose' death rate in all of New Mexico ranging from 42 to 72 per 1000,000 over the course of the eleven years examined, from 1995 to 2006. What are the differences and similarities between victims of 'accidental drug overdoses' and suicide victims in the Valley (as …

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Citizenship, Religion And Revolution In Cuba, Carolyn Watson Feb 2010

Citizenship, Religion And Revolution In Cuba, Carolyn Watson

History ETDs

Throughout the twentieth century, various Cuban regimes have tried to eliminate the practice of religions of African origin by combining repressive legislation and coercive social practices that stigmatized practitioners as culturally backward, socially deviant, and mentally deficient. Religious practitioners, however, used the state apparatus to continue worshipping their African deities, sometimes challenging government officials excessive application of the law or devising ways to evade their scrutiny. Through an analysis of archival documents, newspapers, works produced by practitioners, oral history interviews and published ethnographies, this dissertation examines the strategies practitioners of Ocha-Ifa — also known as Santeria — employed as they …

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