Digital Commons Network^™

Reproductive Success And Soil Seed Bank Characteristics Of Astragalus Ampullarioides And A. Holmgreniorum (Fabaceae): Two Rare Endemics Of Southwestern Utah, Allyson B. Searle

Theses and Dissertations

Astragalus ampullarioides and A. holmgreniorum are two rare endemics of southwestern Utah. Over two consecutive field seasons (2009-2010) we examined pre-emergent reproductive success, based on F/F and S/O ratios, from populations of both Astragalus ampullarioides and A. holmgreniorum, estimated the density of the soil seed bank of A. holmgreniorum as a measure of potential post-emergent reproductive success, and estimated seed persistence within the soil seed bank. Fruit/flower (F/F) ratios and seed/ovule (S/O) ratios varied significantly between populations and among years in both species, and showed low reproductive output in both taxa. In Astragalus ampullarioides F/F and S/O were 0.06±0.01 …

Patterns Of Transience, Sex Bias, And Body Mass In Open-Habitat Rodent Populations, Stephen Edward Rice

Biological Sciences Theses & Dissertations

Rodents are assumed to live their lives in circumscribed (natal) areas with males being more prone to disperse than females and juveniles more prone to disperse than adults. To test these assumptions we examined the initial captures of geographic populations of hispid cotton rat, meadow vole, prairie vole, and marsh rice rat obtained through capture-mark-recapture methods. Capture records were obtained from Kansas and Illinois from long-term studies, and through live-trapping in Chesapeake, Virginia. I evaluated proportions of residents and transients, adults and juveniles, and males and females for significant differences among seasons, years, and geographic locations. The overall body masses …

Evidence That A Brief Intervention Can Affect Parents’ Attitudes About Punishment, Seth Scholer

Global Summit on Ending Corporal Punishment and Promoting Positive Discipline

No abstract provided.

Review Of Kathleen L. Hull, Pestilence And Persistence: Yosemite Indian Demography And Culture In Colonial California, Terry L. Jones

Social Sciences

No abstract provided.

North Clackamas School District Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC). The study includes analysis of population, housing and enrollment trends affecting the North Clackamas School District (NCSD) in recent years and forecasts of district-wide and individual school enrollments for the 2011-12 to 2020-21 school years. The District enrolled 17,368 students in Fall 2010, a decrease of 210 students (1.2 percent) from Fall 2009. This was the second consecutive year of decline in enrollment following 22 consecutive years of K-12 enrollment growth between 1986-87 and 2008- 09. This year, for the first …

Population Dynamics Of The Western Prickly Pear, Opuntia Macrorhiza (Cactaceae), Kathleen H. Keeler, Brigitte Tenhumberg

School of Biological Sciences: Faculty Publications

Although most cacti that have been studied are long lived, following individually marked plants in Boulder County, Colorado, for >7 years, we determined that average life span of Opuntia macrorhiza, the western prickly pear, is 3 years. A few individuals probably live >10 years. Vegetative reproduction, produced by rooting of cladodes, exceeded reproduction by germination and establishment from seeds. Both types of new recruits, from vegetative reproduction and seeds, had higher death rates than established plants. Size and frequency of flowering increased with age, although size both increased and decreased, sometimes dramatically, between years. Flowering correlated more strongly with …

Climate Change And Climate Variability: Personal Motivation For Adaptation And Mitigation, Jan C. Semenza, George B. Ploubidis, Linda Acha George

Environmental Science and Management Faculty Publications and Presentations

Background: Global climate change impacts on human and natural systems are predicted to be severe, far reaching, and to affect the most physically and economically vulnerable disproportionately. Society can respond to these threats through two strategies: mitigation and adaptation. Industry, commerce, and government play indispensable roles in these actions but so do individuals, if they are receptive to behavior change. We explored whether the health frame can be used as a context to motivate behavioral reductions of greenhouse gas emissions and adaptation measures. Methods: In 2008, we conducted a cross-sectional survey in the United States using random digit dialing. Personal …

Arregui V. Gallegos-Main Clerk's Record V. 1 Dckt. 38496

Idaho Supreme Court Records & Briefs, All

No abstract provided.

Individualistic Response Of Piñon And Juniper Tree Species Distributions To Climate Change In North America's Arid Interior West, Jacob R. Gibson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Piñon and juniper tree species have species-specific climatic requirements, resulting in unique distributions and differential responses to climate change. Piñons and junipers co-dominate the arid woodlands of North America as groups with widespread hybridization. Two piñons, Pinus edulis; P. monophylla, and four junipers, Juniperus deppeana var. deppeana; J. monosperma; J. occidentalis; J. osteosperma, are endemic to the midlatitude interior west and form three groups of hybridizing sister species, P. edulis-P. monophylla; J. deppeana var. deppeana-J. monosperma; J. occidentalis-J. osteosperma. Recent droughts have caused widespread mortality among piñons, but have had less impact on …

The Role Of Historical And Contemporary Processes On Phylogeographic Structure And Genetic Diversity In The Northern Cardinal, Cardinalis Cardinalis, Brian T. Smith, Patricia Escalante, Blanca E. Hernandez-Banos, Adolfo G. Navarro-Siguenza, Sievert Rohwer, John Klicka

Ornithology Program (HRC)

Background

Earth history events such as climate change are believed to have played a major role in shaping patterns of genetic structure and diversity in species. However, there is a lag between the time of historical events and the collection of present-day samples that are used to infer contemporary population structure. During this lag phase contemporary processes such as dispersal or non-random mating can erase or reinforce population differences generated by historical events. In this study we evaluate the role of both historical and contemporary processes on the phylogeography of a widespread North American songbird, the Northern Cardinal, Cardinalis cardinalis …

Plexus: A New Model For New Orleans Public Healthcare, Jonathan Lejune

Honors Capstones

No abstract provided.

The Practical Pev: Removing Barriers To Plug-In Electric Vehicle Charging And Ownership, Stephen Parry

Pomona Senior Theses

The paradigm of personal transportation is changing. Electric vehicles are here. The arrival of the Tesla Roadster, Nissan Leaf, and Chevy Volt has changed the way in which we have to think about the energy that fuels our transportation needs. As PEVs find their way into garages this year and especially in the coming years, the neighborhood, city, state, and regional electric infrastructure will take on a new importance for many people as their interactions with it become significantly more complex and intimate as a result of regular electric vehicle charging.

Teaching Across Borders: Business As Usual?, Bobbe Mcghie Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The quest to comprehend how cultural differences can impact learning is one of those intriguing challenges that continue to beguile some scholars and educational leaders even at a time that is characterized as globalized. This dissertation is a qualitative case study about teaching to culturally diverse populations and is primarily based on the interviews of seven accountants designated as instructors and the direct observation of those instructors while teaching accounting principles to other accountants. The English language was used despite the fact that all participants, including the instructors, spoke English as a second or third language and came from diverse …

Molecular Evolution And Historical Biogeography Of New World Birds, Brian T. Smith

UNLV Theses, Dissertations, Professional Papers, and Capstones

Deciphering the patterns of how biodiversity has evolved across time and space has remained a fundamental objective for biologists for the last 200 years. Researchers are faced with the challenge of interpreting the complexity of evolutionary patterns that have been generated over the deep history of the Earth. The advancement of DNA sequencing technology has yielded a new and powerful genetic toolkit that has allowed biologists to address novel evolutionary questions. For my dissertation research, I used molecular genetics and a statistical framework to study the evolution and historical biogeography of birds distributed in North and South America. My dissertation …

Sweet Mercy: A Scientific Investigation, Aubrey Gartner

Theses and Dissertations

The purpose of the following studies is to understand the factors that are related to and influence a person’s merciful behavior toward an offender. I define mercy as an act by a person who has the authority to do so that administers or recommends less negative consequence or punishment than is deserved by someone justly deserved. In Study 1, undergraduate students (N = 400) completed the Mercy Meter, a self-report measure of mercy. The Mercy Meter’s scale structure and psychometric properties were examined using Item Response Theory Rasch Analysis. A 14-item, 2-factor scale was established with good psychometric properties. Evidence …

The Relationships Among Plant Cover, Density, Seed Rain, And Dispersal Of Bromus Tectorum In High-Elevation Populations, Andrew R. Kanarek, Rebecca Hufft Kao

Western North American Naturalist

The invasive species Bromus tectorum L. is recognized as one of the most ecologically and economically devastating weeds in the western United States. Although B. tectorumhas been studied extensively, few studies have examined its dispersal and spread. We collected data from sites with B. tectorum in and around Rocky Mountain National Park to quantify the relationships between plant cover/density and seed rain and dispersal distance. Results suggest that there is a positive relationship between density within a patch and local seed rain and that B. tectorum exhibits relatively limited short-distance dispersal (where seeds fell in close proximity to plants …

Survival, Reproductive Output, And Transplant Potential Of Penstemon Tubiflorus (Tube Penstemon), Cathy Mabry

Western North American Naturalist

Survival, reproductive output, and transplant success were studied for an Iowa population of Penstemon tubiflorus (tube penstemon), a species that is rare to uncommon through much of its range. The population was discovered in 2003 and is one of only 6 populations that have been documented in Iowa. I began monitoring the new population when 2 cohorts were permanently marked, the first in 2005 and the second in 2007. I estimated survival, flowering, and reproductive output. Then, I introduced greenhouse-grown transplants to 2 new sites and the original site. Survival data showed that P. tubiflorus is a short-lived perennial (approximately …

Self-Awareness Of Food Choice And Body Image: A Relational Study In The Undergraduate Female Population, Cassandra Lenza

Social Work Theses

The present study has measured, by self-report, factors that affect food choice in the college-aged female population and the relationship between these factors and perceived body image. A review of the literature reveals that health, appearance, cost, time and availability all serve as influential factors in this population’s food choices, but the literature does not investigate the relationship between comparing the variables of food choice and body image. This correlational study employed a survey research design with Likert-scaled questions to gain insight regarding food choice in seventy-five undergraduate students. The main findings suggest that the target population based food consumption …

Spring/Summer 2011 Program Guide, Academy Of Lifelong Learning

Program Catalogs

No abstract provided.

Vieillissement De La Population Libanaise : Démographie, Évaluation Sanitaire Et Impact En Santé Bucco-Dentaire, Nada El Osta, Stephanie Tubert-Jeannin, Nada Bou Abboud Naaman, Martine Hennequin, Lana El Osta, Negib Geahchan

International Arab Journal of Dentistry

This research was performed with national organizations to gather socio-demographic and sanitary information regarding aging population in Lebanon. It was also accomplished through investigators concerned in health care in Lebanon. Demographic trends, life expectancy, variations in population aging within the country were illustrated. We also appraised general and dental status, health service and policy, in addition to social security anticipated for elderly.

A Primary Care Workload Production Model For Estimating Relative Value Unit Output, Rachel G. Murphy

Theses and Dissertations

Health care costs have grown to unsustainable levels nationally and within the Department of Defense. Military health care costs have historically been difficult to isolate, causing budget cuts to be the vehicle for cost control. Maximum efficiency, therefore, is the goal in order to show improvement. With the Air Force’s new preventive health plan, they aim to drive a long-term posture for cost reduction through prevention. This research effort aimed to develop a tool to assist in future efforts to understand and improve efficiency in workload output, and whether a relationship exists between patient workload demand and the per-encounter variables …

The Total Errors In Measuring E Peak For Gamma-Ray Bursts, Andrew C. Collazzi, Bradley E. Schaefer, Jeremy A. Moree

Faculty Publications

Of all the observable quantities for gamma-ray bursts (GRBs), one of the most important is E peak. E peak is defined as the peak of the νF ν power spectrum from the prompt emission. While E peak has been extensively used in the past, for example with luminosity indicators, it has not been thoroughly examined for possible sources of scatter. In the literature, the reported error bars for E peak are the simple Poisson statistical errors. Additional uncertainties arise due to the choices made by analysts in determining E peak (e.g., the start and stop times of integration), imperfect knowledge …

Plan To Address Health Disparities And Promote Health Equity In New Hampshire, The State Plan Advisory Work Group

Manchester Research Group

Analysis of access to health care and health equity in New Hampshire.

Minorities In Israel: Mizrahi And Israeli-Arab Identity And The Potential For Political Collaboration, Kristin L. Hissong

Electronic Theses and Dissertations

The purpose of this thesis is to analyze the minority status of Mizrahim and Israeli-Arabs and their political narrative, identity, and action, including their divergent and collaborative views of the Israeli-Palestinian Peace Process. I examined the possibility that minority groups, once established as viable separate collectives with some leverage and political narrative, have just cause for combining their political action in order to influence governing elites. In order to explore this question, I investigated whether the factor of shared grievances in social identity formation provides a basis for multi-group political narrative and subsequent collaborative action in confronting dominant political forces, …

Seafloor Characterization Using Airborne Hyperspectral Co-Registration Procedures Independent From Attitude And Positioning Sensors, Yuri Rzhanov, Shachak Pe'eri, James V. Gardner, James Guilford

Center for Coastal and Ocean Mapping

The advance of remote-sensing technology and data-storage capabilities has progressed in the last decade to commercial multi-sensor data collection. There is a constant need to characterize, quantify and monitor the coastal areas for habitat research and coastal management. In this paper, we present work on seafloor characterization that uses hyperspectral imagery (HSI). The HSI data allows the operator to extend seafloor characterization from multibeam backscatter towards land and thus creates a seamless ocean-to-land characterization of the littoral zone.

Mcminnville School District Enrollment Forecasts, 2011-12 To 2015-16, Portland State University. Population Research Center, Charles Rynerson, Vivian Siu, David West, Megan Robertson

School District Enrollment Forecast Reports

The McMinnville School District (MSD) enrolled 6,411 students in Fall 2010, a decrease of 156 students (2.4 percent) from Fall 2009. The decrease occurred at all levels, including losses of 98 students (3.2 percent) in elementary grades K-5, seven students (0.5 percent) in middle school grades 6-8, and 51 students (2.5 percent) in high school grades 9-12. In spite of this year’s enrollment decline, district-wide K-12 enrollment in Fall 2010 was 381 students (6.3 percent) larger than in Fall 2005. During the five year period, all levels shared the growth, with increases of 5.7 percent at the elementary and middle …

Context, Choice, And Rights: Phs Community Services Society V Canada (Attorney General)

UBC Law Review

No abstract provided.

Species Trees And Species Delimitation With Multilocus Data And Coalescent-Based Methods: Resolving The Speciation History Of The Liolaemus Darwinii Group (Squamata, Tropiduridae), Arley Camargo Bentaberry

Theses and Dissertations

The inference of species boundaries and phylogenetic relationships are fundamental for evolutionary, ecological, and conservation studies. The resolution of species boundaries and the inference of phylogenetic relationships among species are required to define the units of analysis and to find the most closely related units for evaluating alternative models of speciation. I highlight lizards as model organisms for ecological and evolutionary studies, emphasizing their contributions to advances in understanding linkages between phylogeography and speciation. In this dissertation, I focus on the phylogenetic relationships of the lizards in the Liolaemus darwinii group, and the species boundaries of a nested clade within …

Corvallis School District: Population And Enrollment Forecasts, 2011-12 To 2020-21, Portland State University. Population Research Center, Charles Rynerson, David West, Vivian Siu

School District Enrollment Forecast Reports

This report presents the results of a demographic study conducted by the Portland State University Population Research Center (PRC). The study includes analysis of population, housing, employment, and school enrollment trends affecting the Corvallis School District (CSD) in recent years, estimates of the average number of CSD students living in single family homes, and forecasts of district‐wide and individual school enrollments for the 2011‐12 to 2020‐21 school years.

The Millennial Rumor: Understanding Millennial College Students' Characteristics, Digital Media Technology Usage, And Assumptions At The University Of Denver, Christina M. Murray

Electronic Theses and Dissertations

This quantitative study investigated student and faculty attitudes toward use of Digital Media Technology (DMT) at the University of Denver. The purpose was to understand how and why students and faculty used DMT on campus. Uses and gratifications theory (Katz, Blumler, & Gurevitch, 1974) was used as the theoretical model to interpret and understand Millennial college students' DMT use, Langer and Knefelcamp's (2008) College student technology arc was used as a conceptual model. Two survey instruments were designed: one for faculty and one for students to collect data on DMT use and attitudes toward use, satisfaction, skill, and learning at …