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Articles 1 - 30 of 308
Full-Text Articles in Entire DC Network
Task Force On Interdisciplinary Programs Report
Task Force On Interdisciplinary Programs Report
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The Birge Sponer Extrapolation, Carl W. David
The Birge Sponer Extrapolation, Carl W. David
Chemistry Education Materials
The Birge Sponer extrapolation is explained using examples.
Jeff Godfrey Dives Into Science, Paul Mantikoski
Jeff Godfrey Dives Into Science, Paul Mantikoski
Wrack Lines
Jeff M. Godfrey, UConn's diving officer, keeps scientists safe underwater, even when hundreds of miles from land or in waters that are extremely cold and thousands of feet deep, by providing the special training needed to be certified for both shallow and extreme dives - and for him, it never gets dull.
A Jewel In Our Midst: A Photo Essay Of The Connecticut River, Nancy C. Balcom, Juliana Barrett
A Jewel In Our Midst: A Photo Essay Of The Connecticut River, Nancy C. Balcom, Juliana Barrett
Wrack Lines
Its unique tidal marshes, ecology, geology, scenic areas, and fascinating history make the Connecticut River a treasure to residents and visitors alike. It is one of the 1,713 “Wetlands of International Importance” designated throughout the world by the International Ramsar Convention. This photo essay also describes the education efforts underway by Connecticut Sea Grant and its partners to assist educators with resource materials.
Recounting The Hurricane Of 1938: Local Memories Of A Regional Disaster, Syma A. Ebbin
Recounting The Hurricane Of 1938: Local Memories Of A Regional Disaster, Syma A. Ebbin
Wrack Lines
The Hurricane of 1938 was one of those defining moments that divide time into parts that either precede or follow. It was transformative, impacting human lives and settlements as well as natural systems, coastal and inland, aquatic and terrestrial, with a force unsurpassed in the region’s living memory. Seventy years have now passed since that hurricane made its historic landfall on the afternoon of September 21, 1938. Humans have regrouped and rebuilt and nature has regenerated and reclaimed, but the memories of those who lived through the Hurricane of ‘38 remain.
The Great Moderation Flattens Fat Tails: Disappearing Leptokurtosis, Wenshwo Fang, Stephen M. Miller, Chunshen Lee
The Great Moderation Flattens Fat Tails: Disappearing Leptokurtosis, Wenshwo Fang, Stephen M. Miller, Chunshen Lee
Economics Working Papers
Recently, Fagiolo et al. (2008) find fat tails of economic growth rates after adjusting outliers, autocorrelation and heteroskedasticity. This paper employs US quarterly real output growth, showing that this finding of fat tails may reflect the Great Moderation. That is, leptokurtosis disappears after GARCH adjustment once we incorporate the break in the variance equation.
Modeling The Volatility Of Real Gdp Growth: The Case Of Japan Revisited, Wenshwo Fang, Stephen M. Miller
Modeling The Volatility Of Real Gdp Growth: The Case Of Japan Revisited, Wenshwo Fang, Stephen M. Miller
Economics Working Papers
Previous studies (e.g., Hamori, 2000; Ho and Tsui, 2003; Fountas et al., 2004) find high volatility persistence of economic growth rates using generalized autoregressive conditional heteroskedasticity (GARCH) specifications. This paper reexamines the Japanese case, using the same approach and showing that this finding of high volatility persistence reflects the Great Moderation, which features a sharp decline in the variance as well as two falls in the mean of the growth rates identified by Bai and Perronâs (1998, 2003) multiple structural change test. Our empirical results provide new evidence. First, excess kurtosis drops substantially or disappears in the GARCH or exponential …
Efficient Production Of Wins In Major League Baseball, Brian Volz
Efficient Production Of Wins In Major League Baseball, Brian Volz
Economics Working Papers
Data Envelopment Analysis (DEA) is applied to Major League Baseball salary and performance data from 1985 to 2006 in order to identify those teams which produced wins most efficiently and the characteristics which lead to efficient production. It is shown that on average both National and American League teams over allocate the most resources to first basemen. Additionally, it is found that National League teams should allocate significantly more resources towards starting pitching while American League teams should allocate significantly more resources toward second base. It is also observed that efficient teams use younger less experienced players and employ rosters …
Dynamic Stock Market Interactions Between The Canadian, Mexican, And The United States Markets: The Nafta Experience, Giorgio Canarella, Stephen M. Miller, Stephen K. Pollard
Dynamic Stock Market Interactions Between The Canadian, Mexican, And The United States Markets: The Nafta Experience, Giorgio Canarella, Stephen M. Miller, Stephen K. Pollard
Economics Working Papers
This paper explores the dynamic linkages that portray different facets of the joint probability distribution of stock market returns in NAFTA (i.e., Canada, Mexico, and the US). Our examination of interactions of the NAFTA stock markets considers three issues. First, we examine the long-run relationship between the three markets, using cointegration techniques. Second, we evaluate the dynamic relationships between the three markets, using impulse-response analysis. Finally, we explore the volatility transmission process between the three markets, using a variety of multivariate GARCH models. Our results also exhibit significant volatility transmission between the second moments of the NAFTA stock markets, albeit …
Imaging Activity Of Neuronal Populations With New Long-Wavelength Voltage-Sensitive Dyes, Joseph P. Wuskell, Leslie M. Loew
Imaging Activity Of Neuronal Populations With New Long-Wavelength Voltage-Sensitive Dyes, Joseph P. Wuskell, Leslie M. Loew
UCHC Articles - Research
We have assessed the utility of five new long-wavelength fluorescent voltage-sensitive dyes (VSD) for imaging the activity of populations of neurons in mouse brain slices. Although all the five were capable of detecting activity resulting from activation of the Schaffer collateral-CA1 pyramidal cell synapse, they differed significantly in their properties, most notably in the signal-to-noise ratio of the changes in dye fluorescence associated with neuronal activity. Two of these dyes, Di-2-ANBDQPQ and Di-1-APEFEQPQ, should prove particularly useful for imaging activity in brain tissue and for combining VSD imaging with the control of neuronal activity via light-activated proteins such as channelrhodopsin-2 …
Perpetual Conflict Or Compromise? The Cost Of Domestic Legitimacy In The Realm Of Women's Human Rights: A Case Study On The Right To An Abortion, Kim Andrea Kelly
Perpetual Conflict Or Compromise? The Cost Of Domestic Legitimacy In The Realm Of Women's Human Rights: A Case Study On The Right To An Abortion, Kim Andrea Kelly
Honors Scholar Theses
With its turbulent and volatile legal evolution, the right to an abortion in the United States still remains a highly contested issue and has developed into one of the most divisive topics within modern legal discourse. By deconstructing the political underpinnings and legal rationale of the right to an abortion through a systematic case law analysis, I will demonstrate that this right has been incrementally destabilized. This instability embedded in abortion jurisprudence has been primarily produced by a combination of textual ambiguity in the case law and judicial ambivalence regarding this complex area of law. In addition, I argue that …
Agenda And Attachments, November 18, 2008
Measuring Unemployment Insurance Generosity, Stephane Pallage, Lyle Scruggs, Christian Zimmermann
Measuring Unemployment Insurance Generosity, Stephane Pallage, Lyle Scruggs, Christian Zimmermann
Economics Working Papers
In this paper, we develop a methodology to summarize the various policy parameters of an unemployment insurance scheme into a single generosity parameter. Unemployment insurance policies are multdimensional objects. They are typically defined by waiting periods, eligibility duration, benefit levels and asset tests when eligible, which makes intertemporal or international comparisons difficult. To make things worse, labor market conditions, such as the likelihood and duration of unemployment matter when assessing the generosity of different policies. We build a first model with such complex characteristics. Our model features heterogeneous agents that are liquidity constrained but can self-insure. We then build a …
Unemployment Insurance Generosity: A Trans-Atlantic Comparison, Stephane Pallage, Lyle Scruggs, Christian Zimmermann
Unemployment Insurance Generosity: A Trans-Atlantic Comparison, Stephane Pallage, Lyle Scruggs, Christian Zimmermann
Economics Working Papers
The goal of this paper is to establish if unemployment insurance policies are more generous in Europe than in the United States, and by how much. We take the examples of France and one particular American state, Ohio, and use the methodology of Pallage, Scruggs and Zimmermann (2008) to find a unique parameter value for each region that fully characterizes the generosity of the system. These two values can then be used in structural models that compare the regions, for example to explain the differences in unemployment rates.
A Review Of The Empirical Evidence On The Effects Of Fiscal Decentralization On Economic Efficiency: With Comments On Tax Devolution To Scotland, Paul Hallwood, Ronald Macdonald
A Review Of The Empirical Evidence On The Effects Of Fiscal Decentralization On Economic Efficiency: With Comments On Tax Devolution To Scotland, Paul Hallwood, Ronald Macdonald
Economics Working Papers
This paper reviews the existing empirical evidence on tax decentralization ("tax .devolution") from central government to sub-central government. Sub-central government is taken to be levels above the local level: such as within the UK at the level of Scottish government/executive in Edinburgh, and at the provincial government level in Canada or Spain. Our interpretation of the literature is that there is increasing empirical support for the proposition that tax decentralization helps in promoting economic efficiency and economic growth. It is noted that a distinction must be drawn between tax decentralization and spending decentralization. Where tax decentralization follows spending decentralization - …
Improving The Self-Esteem Of At-Risk Youth, Gavrielle Levine, Deborah Majerovitz, Elizabeth Schnur, Charletta Robinson, Cadine Soman
Improving The Self-Esteem Of At-Risk Youth, Gavrielle Levine, Deborah Majerovitz, Elizabeth Schnur, Charletta Robinson, Cadine Soman
NERA Conference Proceedings 2008
This study, which is part of a larger study, describes and evaluates a federally-funded (U.S. Administration for Children and Families, CBAE) program, RESOLVE, designed to increase self-esteem and encourage healthy life choices of at-risk youth. This program combines an educational component teaching healthy lifestyles, goal setting, and refusal skills to avoid unhealthy behaviors with a vocational training component. Preliminary data from post-test analysis show increased content knowledge and modest increases in self-esteem suggesting that this program is a promising way to reach a challenging population. It incorporates best practices in health education by taking a holistic approach and addressing physical …
Measuring Teachers’ Perceptions Of Grading Practices: Does School Level Make A Difference?, Xing Liu
Measuring Teachers’ Perceptions Of Grading Practices: Does School Level Make A Difference?, Xing Liu
NERA Conference Proceedings 2008
The effectiveness of classroom assessment and grading practices has become an increasingly important research topic in education. However, previous research had no consensus on whether school level had an effect on teachers’ grading practices. The purpose of the present study was to examine whether middle and high school teachers differ in regard to ratings of the importance and usefulness of grading practices, teachers’ perceived self-efficacy of the grading process, and the degree to which factors such as student effort, ability and teachers’ personal grading habits affect their grading decisions. A total of 107 secondary school teachers participated in this study …
Assessing Measurement Invariance Of The Teachers’ Perceptions Of Grading Practices Scale Across Cultures, Xing Liu
NERA Conference Proceedings 2008
In a cross-cultural study, it is crucial to understand whether items and the factorial structure of a survey instrument are equivalent across different cultural groups, because items might mean differently to different population groups, and thus the factorial structure of the measurement instrument might not hold across groups. The purpose of this study was to investigate the measurement invariance of the Teachers’ Perceptions of Grading Practices Scale (TPGP) across the U.S. and China using structural equation modeling. In particular, this study was designed to examine whether items and the factorial structure of the TPGP scale were equivalent across the two …
Improving Automaticity With Basic Addition Facts: Do Taped Problems Work Faster Than Cover, Copy, Compare?, James Cressey, Kristin Ezbicki
Improving Automaticity With Basic Addition Facts: Do Taped Problems Work Faster Than Cover, Copy, Compare?, James Cressey, Kristin Ezbicki
NERA Conference Proceedings 2008
This small pilot study compared the effectiveness of two interventions to improve automaticity with basic addition facts: Taped Problems (TP) and Cover, Copy, Compare (CCC), in students aged 6-10. Automaticity was measured using Mathematics Curriculum-Based Measurement (M-CBM) at pretest, after 10 days, and after 20 days of intervention. Our hypothesis was that the TP group will gain higher levels of automaticity more quickly than the CCC and control groups. However, when gain scores were compared, no significant differences were found between groups. Limitations to the study include low treatment integrity and a short duration of intervention.
Measuring College Student Satisfaction: A Multi-Year Study Of The Factors Leading To Persistence, Felice D. Billups
Measuring College Student Satisfaction: A Multi-Year Study Of The Factors Leading To Persistence, Felice D. Billups
NERA Conference Proceedings 2008
Using Tinto's (1987) social integration theory as a framework, this study measured student satisfaction in six transformative areas: educational experience, skills development, faculty interaction, personal growth, sense of community, and overall expectations. Emerging as a strategic planning process priority, this project sought to identify those areas where students succeeded or were at risk. Employing a three-phase mixed methods approach, this descriptive, longitudinal study was conducted from 1990-2004 at a highly selective specialized college and assisted college administrators in developing or modifying programs that would enhance student satisfaction to ensure degree completion.
A Case Study Of Teachers' Mathematics Content Knowledge And Attitudes Toward Mathematics And Teaching, Brian R. Evans
A Case Study Of Teachers' Mathematics Content Knowledge And Attitudes Toward Mathematics And Teaching, Brian R. Evans
NERA Conference Proceedings 2008
This study intended to measure teacher mathematical content knowledge both before and after the first year of teaching and taking graduate teacher education courses in the Teach for America (TFA) program, as well as measure attitudes toward mathematics and teaching both before and after TFA teachers’ first year. There was a significant increase in both mathematical content knowledge and attitudes toward mathematics over the TFA teachers’ first year teaching. Additionally, several significant correlations were found between attitudes toward mathematics and content knowledge. Finally, after a year of teaching, TFA teachers had significantly better attitudes toward mathematics and teaching than neutral.
Rigorous Curriculum And Sat, Feifei Li, Thanos Patelis, Robert Lissitz
Rigorous Curriculum And Sat, Feifei Li, Thanos Patelis, Robert Lissitz
NERA Conference Proceedings 2008
The main purposes of this study are to investigate the relation between course-taking pattern and the SAT score, and examine the invariance of this relation across subgroups. In addition, we are also going to verify the accuracy of self-reported information from the SAT Questionnaire by examining the actual high school transcripts, and build the link between SAT and the achievement by correlating SAT scores with state assessment scores. If the SAT score is a function of high school course-taking behaviors regardless of students' gender, socioeconomic status (SES) and ethnicity, every student should be provided with equal opportunity for rigorous curriculum.
Cognition And Student Learning Through The Arts, Steven A. Melnick, Judith T. Witmer, Martha J. Strickland
Cognition And Student Learning Through The Arts, Steven A. Melnick, Judith T. Witmer, Martha J. Strickland
NERA Conference Proceedings 2008
An increasing number of recent research studies suggest connections between cognition, social and emotional development, and the arts. Some studies indicate that students in schools where the arts are an integral part of the academic program tend to do better in school than those students where that is not the case. This study examines home/school factors that contribute most to variance in student learning and achievement and the arts from over 8,000 students in grade 5. The findings suggest in-school arts programs may have less of an impact on student achievement than proposed by previous research.
Factors Related To Mental Health Of Native Americans In Eastern Tribes, Chung-Fan Ni, Felicia Wilkins-Turner, Valerie Ellien, Corinne Harrington, Diane E. Liebert
Factors Related To Mental Health Of Native Americans In Eastern Tribes, Chung-Fan Ni, Felicia Wilkins-Turner, Valerie Ellien, Corinne Harrington, Diane E. Liebert
NERA Conference Proceedings 2008
This paper is part of a five-year research project funded by the National Institute on Disability and Rehabilitation Research (NIDRR) that addresses the health, disability and service needs of Native Americans in eastern tribes. The Participatory Action Research model with a community-based approach was used to facilitate collaboration among the participating tribes. Native American research technicians conducted individual interviews with members of their tribes. Demographics, prevalence of disabilities, and various factors associated with health and mental health are presented. Of the 858 tribal members who responded to survey questions, the third most prominent health problem reported was mental illness.
Family Myths, Beliefs, And Customs As A Research/Educational Tool To Explore Identity Formation, William E. Herman
Family Myths, Beliefs, And Customs As A Research/Educational Tool To Explore Identity Formation, William E. Herman
NERA Conference Proceedings 2008
This paper outlines a qualitative research tool designed to explore personal identity formation as described by Erik Erikson and offers self-reflective and anonymous evaluative comments made by college students after completing this task. Subjects compiled a list of 200 myths, customs, fables, rituals, and beliefs from their family of origin and then reflected upon the relevance and meaning of such items. The research and instructional tool described in the paper should be of considerable interest to teachers who work to promote self-reflection amongst adolescents as well as case study researchers and therapists who wish to study identity formation and values.
Empowering Teachers As Leaders: A Hard Sell, Rochelle Goldberg Kaplan, Kevin Walsh, Hilary A. Wilder, Geraldine Mongillo, Christopher Mulrine, Dorothy Feola
Empowering Teachers As Leaders: A Hard Sell, Rochelle Goldberg Kaplan, Kevin Walsh, Hilary A. Wilder, Geraldine Mongillo, Christopher Mulrine, Dorothy Feola
NERA Conference Proceedings 2008
Despite emphasis on preparing teachers as leaders, teacher educators realize that the transition of classroom practitioners into school leaders is fraught with many obstacles. This session addresses some of these obstacles, describes strategies and opportunities that we have used in our graduate master’s degree programs for teachers that support professionals as they make this change. The session will present evidence on the results of our efforts in terms of teachers’ performances within their programs and in the field after they graduate.
Preservice, Secondary Social Studies Teachers' Perceptions Of Gender Equity, Margaret M. Monaghan
Preservice, Secondary Social Studies Teachers' Perceptions Of Gender Equity, Margaret M. Monaghan
NERA Conference Proceedings 2008
This study examines preservice, social studies teachers’ perceptions of gender equity. The assumption that preservice teachers recognize gender as an important issue and are willing and able to take the initiative to remedy inequities in their classroom structures and content is considered. Six participants were interviewed using Seidman’s (2006) three-round, interview protocol. A focused life history was compiled to situate participants’ perceptions within their personal and professional experiences. Findings suggest a disconnect between preservice teachers' intentions and their practice in regards to gender equity. More explicit attention to gender equity in teacher education programs is recommended.