Digital Commons Network^™

The Incentive And Benefits To Publish Research, Christopher N. Jacques

The Prairie Naturalist

In the northern Great Plains, December is a month marked by the end of the year and a period of much-needed rest and relaxation during the start of the winter season. Landscapes will soon be blanketed with snow and local floral and faunal species have adapted to the ensuing winter months ahead. Winter is a season that reminds you who you live in the Plains states, and as such, should expect bitter cold temperatures, strong winds, and blowing and drifting snow. However, December is a great time to enjoy the outdoors across the Great Plains, a time to reflect on …

The Crs Package: Nonparametric Regression Splines For Continuous And Categorical Predictors, Zhenghua Nie, Jeffery S. Racine

The R Journal

A new package crs is introduced for computing nonparametric regression (and quantile) splines in the presence of both continuous and categorical predictors. B-splines are employed in the regression model for the continuous predictors and kernel weighting is employed for the categorical predictors. We also de velop a simple R interface to NOMAD, which is a mixed integer optimization solver used to compute optimal regression spline solutions.

Influence.Me: Tools For Detecting Influential Data In Mixed Effects Models, Rense Nieuwenhuis, Manfred Te Grotenhuis, Ben Pelzer

The R Journal

influence.ME provides tools for detecting influential data in mixed effects models. The application of these models has become common practice, but the development of diagnostic tools has lagged behind. influence.ME calculates standardized measures of influential data for the point estimates of generalized mixed effects models, such as DFBETAS, Cook’s distance, as well as percentile change and a test for changing levels of significance. influence.ME calculates these measures of influence while ac counting for the nesting structure of the data. The package and measures of influential data are introduced, a practical example is given, and strategies for dealing with influential data …

An Annotated List Of The Caddisflies (Trichoptera) Of Florida: Part I. The Family Hydroptilidae, With Descriptions Of Five New Species, Steven C. Harris, Andrew K. Rasmussen, Dana R. Denson

Insecta Mundi

Five new species of Hydroptila (Trichoptera: Hydroptilidae), H. murtlei sp. n., H. criokera sp. n, H. auriscuspa sp. n., H. santarosa sp. n., and H. ebroensis sp. n., from Florida are described and illustrated. We provide an annotated list of the 76 species known to occur in the state, including 10 species that represent new state records, one of which is also a new country record. New illustrations are presented for those species which were difficult to identify or exhibited new range extensions into Florida, namely: Hydroptila acadia Ross, H. ajax Ross, H. icona Mosely, H. latosa …

Graphical Markov Models With Mixed Graphs In R, Kayvan Sadeghi, Giovanni M. Marchetti

The R Journal

In this paper we provide a short tuto rial illustrating the new functions in the package ggm that deal with ancestral, summary and ribbonless graphs. These are mixed graphs (containing three types of edges) that are important because they capture the modified independence structure after marginalisation over, and conditioning on, nodes of directed acyclic graphs. We provide functions to verify whether a mixed graph implies that A is independent of B given C for any disjoint sets of nodes and to generate maximal graphs inducing the same independence structure of non-maximal graphs. Finally, we provide functions to decide on the …

What's In A Name?, Paul Murrell

The R Journal

Any shape that is drawn using the grid graphics package can have a name associated with it. If a name is provided, it is possible to access, query, and modify the shape after it has been drawn. These facilities allow for very detailed customisations of plots and also for very general transformations of plots that are drawn by packages based on grid.

Frailtyhl: A Package For Fitting Frailty Models With H-Likelihood, Il Do Ha, Maengseok Noh, Youngjo Lee

The R Journal

We present the frailtyHL package for fitting semi-parametric frailty models using h likelihood. This package allows lognormal or gamma frailties for random-effect distribution, and it fits shared or multilevel frailty models for correlated survival data. Functions are provided to format and summarize the frailtyHL results. The estimates of fixed effects and frailty parameters and their standard errors are calculated. We illustrate the use of our package with three well known data sets and compare our results with various alternative R-procedures.

Rfit: Rank-Based Estimation For Linear Models, John D. Kloke, Joseph W. Mckeen

The R Journal

In the nineteen seventies, Jureĉková and Jaeckel proposed rank estimation for linear models. Since that time, several authors have developed inference and diagnostic methods for these estimators. These rank-based estimators and their associated inference are highly efficient and are robust to outliers in response space. The methods include estimation of standard errors, tests of general linear hypotheses, confidence intervals, diagnostic procedures including studentized residuals, and measures of influential cases. We have developed an R package, Rfit, for computing of these robust procedures. In this paper we highlight the main features of the pack age. The package uses standard linear …

It's Not What You Draw, It's What You Don't Draw, Paul Murrell

The R Journal

The R graphics engine has new support for drawing complex paths via the functions polypath() and grid.path(). This article explains what is meant by a complex path and demonstrates the usefulness of complex paths in drawing non-trivial shapes, logos, customised data symbols, and maps.

Debugging Grid Graphics, Paul Murrell, Velvet Ly

The R Journal

A graphical scene that has been produced using the grid graphics package consists of grobs (graphical objects) and viewports. This article describes functions that allow the exploration and inspection of the grobs and viewports in a grid scene, including several functions that are available in a new package called gridDe bug. The ability to explore the grobs and view ports in a grid scene is useful for adding more drawing to a scene that was produced using grid and for understanding and debugging the grid code that produced a scene.

The State Of Naming Conventions In R, Rasmus Bååth

The R Journal

Most programming language communities have naming conventions that are generally agreed upon, that is, a set of rules that governs how functions and variables are named. This is not the case with R, and a review of unofficial style guides and naming convention us age on CRAN shows that a number of different naming conventions are currently in use. Some naming conventions are, however, more popular than others and as a newcomer to the R community or as a developer of a new package this could be useful to consider when choosing what naming convention to adopt.

Bellevue Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2012 NOU Fall Field Days was held in conjunction with the Inland Bird Banding Association meeting at Fontenelle Forest Nature Center in Bellevue on October 26–28. The meeting, organized by Betty Grenon and Rick Schmid, drew a total of 104 attendees, including 33 members of the Inland Bird Banding Association.

On Friday evening, Phil Swanson's photographic presentation "Welcome to Omaha . . . It's for the Birds" included a brief history of Omaha, an overview of area birding hotspots, and photos of many of the birds which can be seen in the area. Following the presentation, a group led …

Index To Volume 80

Nebraska Bird Review

Addy, Darren 47, 75

Albrecht, Jeff 75

Albright, Patty 111

Allen, Edward 128

Allison, Scott 28, 48

American Ornithologists' Union 120

Anderson, Leif 129

Anthony, Courtney 75

Armknecht, Henry 88

Arnett, Gladys 128

Avocet, American 54, 79, 93, 137

. . .

Wren: Bewick's 99; Carolina 13, 36–37, 63, 99, 110, 147, 161; House 63, 81, 99, 106–110, 147; Marsh 13, 36-37, 63, 81, 99, 147, 161; Rock 63, 99, 119, 147; Sedge 63, 81, 99, 108, 147; Winter 13, 36–37, 63, 147, 160

Wright, Rick 48

Yellowlegs: Greater 10, 54, 93, 137, 160; Lesser 46, 54, 79, 93, 137 …

First U.S. Records Of Amorbia Concavana (Zeller) (Lepidoptera: Tortricidae), James E. Hayden

Insecta Mundi

Amorbia concavana (Zeller) (Lepidoptera: Tortricidae) is reported in Florida, USA. Male and female specimens are figured, and new host records are given. The species is compared to other Nearctic species of Amorbia Clemens. Florida specimens are more similar to Cuban than to Central American material with respect to male genitalia.

A List Of Scale Insects (Hemiptera: Coccoidea) Intercepted In Quarantine On Imported Succulent Plants In Korea 2006-2010, Jungyoun Ji, Soo-Jung Suh

Insecta Mundi

A list of scale insects (Hemiptera: Coccoidea) intercepted on imported succulent plants at the plant quarantine of Korea from 2006 to 2010 is provided. A total of 15 species belonging to four families are listed. Of the 15 species that were intercepted, some species are potential pests that could gain entry and establish in Korea through the importation of plant material. Current information on intercepted scale insects is required to alert inspectors at quarantine sites to look carefully at succulent plants to prevent the introduction of an exotic species.

The Variegated Mud-Loving Beetles (Coleoptera: Heteroceridae) Of Mississippi And Alabama, With Discussion And Keys To The Species Occurring In The Southeastern United States, Jonas G. King, Paul K. Lago

Insecta Mundi

We review the variegated mud-loving beetle fauna of the southeastern United States (Coleoptera: Heteroceridae), with an emphasis on Mississippi and Alabama. A key is presented to all species known to occur in the southeastern US, and includes several extra-limital species. Descriptions, illustrations and distribution maps are presented for each species. One new species, Tropicus nigrellus, is described and a lectotype is designated for Heterocerus schwarzi Horn. Our molecular data suggest that many previously recognized generic concepts are unnatural. As a result, the following generic synonymies are proposed: Culmus Pacheco 1964, Damfius Pacheco 1964, Efflagitatus Pacheco 1964, Erus …

A Comparison Of The Cultural/Ethnic Perceptions And Educational Beliefs Of Korean Immigrant And Non-Immigrant Families, Eun Jin Hwang

Dissertations

As a critical unit for identifying family-constructed meanings of education, a deeper contextual understanding of Korean immigrant parents' cultural/ethnic perceptions in relation to educational beliefs should be central to culturally responsive education designed to support Korean immigrant families. It is necessary for educators to examine the beliefs and practices of Korean immigrant families around education in order to broaden the educational conversation and mutual understanding between parents and teachers for effectively facilitating their children's learning and socialization. The purpose of this dissertation is to investigate the variations in cultural/ethnic perceptions and educational beliefs about childrearing and early schooling among three …

Gender Differences In The Vocational Interests Of Youth Considering High Job Growth And Green Energy Occupations, Becky S. Robinson

Dissertations

For more than 100 years, vocational psychologists and educational researchers have sought to identify the significant influences shaping occupational interests. This descriptive study used a series of vocational card sort exercises with 139 rural high school youth to identify gender differences in occupational interests toward working in 60 of the nation's fastest growing occupations, including new and emerging 21st century green energy roles. Through a classroom-based exercise, youth sorted cards from four decks into piles (1 - 5) at their desk. Sorting the card into pile (1) expressed Strong Dislike; pile (2) Dislike, pile (3) No Interest, pile (4) Some …

Vitamin D Deficiency And Cultural Influences Among Muslim Women In Southern Illinois, Durar Kassim Shakir

Theses

This study is an analysis of the cultural influences that affect the prevalence of vitamin D deficiency among Muslim women from sun-rich countries, who now reside in Southern Illinois. Previous studies examine the prevalence of vitamin D deficiency among this population, while neglecting to examine the extent of cultural influences which can affect the likelihood of having this disorder. Low serum levels of 25(OH)D can occur when there are low levels of vitamin D intake, and when exposure to sunlight is limited. Muslim women are more prone to vitamin D deficiency due to traditional attire, regardless of migration. Upon surveying …

Note: A Transimpedance Amplifier For Remotely Located Quartz Tuning Forks, Ethan Kleinbaum, Gabor Csathy

Birck and NCN Publications

The cable capacitance in cryogenic and high vacuum applications of quartz tuning forks imposes severe constraints on the bandwidth and noise performance of the measurement. We present a single stage low noise transimpedance amplifier with a bandwidth exceeding 1 MHz and provide an in-depth analysis of the dependence of the amplifier parameters on the cable capacitance. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769271]

The American Shotgun House: A Study Of Its Evolution And The Enduring Presence Of The Vernacular In American Architecture, Lillian Mcrae

Architecture Undergraduate Honors Theses

This thesis investigates the evolution of the American shotgun house through plans, elevations and photographs to define the formal, architectural differences and similarities between contemporary shotgun houses of the 21st century and the traditional, historic shotgun houses of the late 19th and 20th centuries. More specifically, this study will explore whether or not the once distinct, vernacular shotgun house still exists as a vernacular housing type in its contemporary construction. Part one of the research process reviews the historic past of the shotgun house and determines the characteristics that compose the traditional, vernacular shotgun houses built in the United States …

Examining Pre-Service Teachers' Instructional Strategies For Technological Pedagogical Content Knowledge Via Video-Conferencing, Hsiu-Jen Cheng, Hong Zhan

Publications

This action research observes instructional strategies and appropriateness of the strategies that pre-service teachers have applied during their training based on the Technological Pedagogical Content Knowledge (TPACK) training model. Participants include 14 pre-service teachers who were enrolled in a Distance Education training course in Taiwan. During the course, pre-service teachers were trained to develop teaching skills based on the TPACK training model and applied their skills in video-conferencing teaching which involved 14 American students who were learning Mandarin Chinese as a Foreign Language (CFL) in an intermediate level course in the United States. Data were collected via screen recordings of …

Remote Sensing Of Tanzanian Volcano Oldoinyo Lengai: Verifying Detection Methods Of Flow Activity, Scott Richard Frystak

All-Inclusive List of Electronic Theses and Dissertations

No abstract provided.

Prediction Of Compressive Creep Bhaviour In Flexible Polyurethane Foam Over Long Time Scales And At Elevated Temperatures, Conor Briody, Barry Duignan, Stephen Jerrams, Stephen Ronan

Articles

Compressive creep gradually affects the structural performance of flexible polymeric foam material over extended time periods. When designing components, it is often difficult to account for long-term creep, as accurate creep data over long time periods or at high temperatures is often unavailable. This is mainly due to the lengthy testing times and/or inadequate high temperature testing facilities. This issue can be resolved by conducting a range of short-term creep tests and applying accurate prediction methods to the results. Short-term creep testing was conducted on viscoelastic polyurethane foam, a material commonly used in seating and bedding systems. Tests were conducted …

A Qualitative Assessment Of The International Exposition Center To The Greater Cleveland Area, Claudette Robey, Kyle H. Johnson, Kyle Julien

All Maxine Goodman Levin School of Urban Affairs Publications

This report describes the outcomes of discussions with IX Center customers and stakeholders as to how the IX Center qualitatively impacts the greater Cleveland area. The results suggest that while the IX Center is perceived to be an asset by customers and stakeholders, it’s likely that the IX Center will need to develop strategies to remain competitive with similar convention centers across the country.

Impact Of Victimization Of Bullying On Attitudes Of Middle School Students In Ncsa Schools In Arkansas, Bradley D. Gist

College of Education Dissertations

The purpose of this study was to add to the limited research with regard to bullying in private schools in general and specifically to member schools of the National Christian School Association (NCSA). Middle school students in grades 6, 7, and 6 were given a survey concerning bullying and bullying behavior in their schools. The effects by grade level of students in rural school settings versus urban school settings were determined with regard to the responses of the survey in four areas: prevalence of bullying, willingness to seek help, aggressive attitudes about bullying, and the overall results of the survey. …

Asymmetric Retrospective Voting: A Theoretical Model And Empirical Evidence Of Negativity Effects In Voters' Response To The Economy, Roland Kappe

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Prospect theory tells us that humans pay more attention to losses than to comparable gains. My dissertation seeks to apply this insight to the field of retrospective voting and in particular economic voting.

First, I develop a formal model of asymmetric retrospective voting which allows for incorporating loss aversion. Then, the empirical implications of this theoretical model are tested using a variety of methodological approaches. First, the model's predictions about human behavior are tested directly in a laboratory experiment using a simplified version of the asymmetric retrospective voting model. In a second step, the analytical focus is widened, turning from …

Mid Infrared Iii-V Semiconductor Emitters And Detectors, Seungyong Jung

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

A variety of new mid wave infrared (MWIR: 3~5 Μm) and long wave infrared (LWIR: 5~10 Μm) optoelectronic devices have been designed, fabricated, and characterized. Application of the strain engineering and new quinternary material into the active region of light emitting diodes (LEDs) allowed for increasing the internal quantum efficiency more than twofold. InAs/GaSb type II superlattice (SL) active region was used for the LWIR LEDs. It was experimentally demonstrated that only a few periods in the SL contribute to the radiative recombination process, which concludes that active region cascading with fewer periods will be more effective in the LWIR …

Use Of Native Dna Binding Domains Tethered To The Fok1 Endonuclease To Target Nodal Related Genes Via The Activin Response Element, Jessica Lauren Minder

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Use of zinc finger nucleases is an established method for gene targeting in zebrafish. Such strategies are efficient in targeting a single gene of interest. Our study attempts to target many Nodal related genes by targeting the Activin Response Element (ARE) through the use of native DNA binding domains tethered to the Fok1 endonuclease. In this light, genes are targeted in a Nodal-dependent manner, and can retain transcript levels sustained by other signaling pathways. This technique holds the potential to be a high throughput means of generating mutations in the regulatory regions of various Nodal responsive genes with the use …

Traffic Driven Analysis Of Cellular And Wifi Networks, Utpal Kumar Paul

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Since the days Internet traffic proliferated, measurement, monitoring and analysis of network traffic have been critical to not only the basic understanding of large networks, but also to seek improvements in resource management, traffic engineering and security. At the current times traffic in wireless local and wide area networks are facing similar upsurge. This calls for a similar vigor in traffic analysis studies. This thesis focuses on several traffic analysis studies in both cellular data networks and WiFi LANs. The broad goal is (i) to improve the understanding of the traffic dynamics, to explore structures in the traffic to help …