Digital Commons Network^™

The Effects Of Permafrost Degradation On Soil Carbon Dynamics In Alaska's Boreal Region, Jonathan A. O'Donnell

Biological Sciences

High-latitude regions store large quantities of organic carbon (C) in permafrost soils and peatlands, accounting for nearly half of the global belowground C pool. Projected climate warming over the next century will likely drive widespread thawing of near-surface permafrost and mobilization of soil C from deep soil horizons. However, the processes controlling soil C accumulation and loss following permafrost thaw are not well understood. To improve our understanding of these processes, I examined the effects of permafrost thaw on soil C dynamics in forested upland and peatland ecosystems of Alaska's boreal region. In upland forests, soil C accumulation and loss …

Ecogeographic, Adaptive, And Phylogenetic Variations In The Crested Duck (Lophonetta Specularioides) And Their Hemoglobins In The Andes, Mariana Bulgarella

Biological Sciences

Tolerance to high-altitude hypoxia in animals varies widely and is a key factor in determining survival at high elevation. The Andean Cordillera of South America, which spans large elevational and latitudinal gradients, enables the study of native highland populations and the characteristics of hemoglobin proteins that are locally adapted for high-altitude respiration. The waterfowl populations of South America are understudied, little data on demographics and behavior are currently available, and only recently have they been investigated using molecular tools. We studied population genetics, phylogeography, and ecogeographic variation in the crested duck ( Lophonetta specularioides). The crested duck is a dabbling …

Risk Society On The Last Frontier: Indigenous Knowledge And The Politics Of Risk In Oil Resource Management At Alaska's North Slope, Berill Blair

Arctic and Northern Studies

This thesis assesses the role of modern environmental risks and their institutionalized management in the subpolitics of North Slope stakeholder groups. It draws primarily on the concepts developed by Ulrich Beck and the literature that has grown out of his Risk Society thesis. The purpose of this research is to determine whether the current designs for knowledge production and management inside Alaska's oil management regime are inclusive of the indigenous knowledge (IK) of North Slope residents during the mediation of environmental risks, and whether the extent of inclusion is in proportion with the risk exposures of these communities. The premise …

Phenomenological Explanation Of Cell Inactivation Cross Section In Terms Of Direct And Indirect Action, Faika A. Azooz, Suaad A. Meerkhan

Sultan Qaboos University Medical Journal

Objectives: The aim of this study was to use survival curves data for the inactivation of V79 cells and CHO-K1 cells by protons, neutrons, C12 ions and He3 ions to study the role of direct and indirect action in cell inactivation. Methods: A large number of survival curves for the inactivation of V79 cells by protons, neutrons, and C12 ions and for CHO-K1 cells inactivated by He3 ions over a wide energy range were taken from published references. Experimental data points were extracted from the published survival curves using MATLAB (Version 7.0) and fitted to the linear quadratic equation. The …

Habitat Function In Alaska Nearshore Marine Ecosystems, Jodi L. Pirtle

Fisheries

This research demonstrates how habitat structures subtidal communities and supports individual species in Alaska nearshore marine ecosystems. This was accomplished through a case study of southeast Alaska coastal regions, and an in-depth investigation of red king crab Paralithodes camtschaticus early life stage ecology and nursery habitat. How subtidal communities reflect variation in the marine environment of southeast Alaska is poorly understood. The purpose of the first part of this body of research was to identify and compare patterns of community structure for macroalgae, invertebrate, and fish communities at shallow subtidal depths between inner coast and outer coast regions, and link …

The Colonization Mechanism Of Pink Salmon Populations In Glacier Bay, Alaska, Based On Genetic Data, Christine M. Kondzela

Fisheries

Following retreat of the last glacial advance in the early 1700s, pink salmon Oncorhynchus gorbuscha colonized many watersheds in Glacier Bay, Alaska. Streams in the lower Bay were populated first, and colonization proceeded up the Bay during the last 200 years. The objective of this study was to use analyses of genetic data---microsatellite and allozyme loci, and mitochondrial DNA haplotypes---to elucidate the colonization mechanism. The even- and odd-year broodlines served as replicate experiments; the mechanisms of colonization for the two broodlines were similar in most respects. The population genetic structure, based on allele/haplotype frequencies and genetic diversity (FST), suggested that …

Life History, Demography, And Ecology Of The Spiny Dogfish "Squalus Acanthias" In The Gulf Of Alaska, Cindy A. Tribuzio

Fisheries

The spiny dogfish (Squalus acanthias) is a small, cosmopolitan shark species, common in sub-tropical and sub-arctic waters. The species is often targeted commercially in most areas of the world throughout its range, and in some cases it is overfished or the subject of conservation concern. In the Gulf of Alaska, spiny dogfish are not targeted and not generally retained, but incidental catches can be high for this schooling species. Previously, biological parameters for spiny dogfish in the Gulf of Alaska were assumed from estimates for this specie's neighboring areas, including British Columbia and Washington State. The purpose of this study …

Bridges Structural Health Monitoring And Deterioration Detection Synthesis Of Knowledge And Technology, Yangtao Dong, Ruiqiang Song, Helen Liu

AIDC Project Reports

No abstract provided.

Bridge Deck Runoff: Water Quality Analysis And Bmp Effectiveness, Robert Perkins, Yildiz Dak Hazirbaba

AIDC Project Reports

No abstract provided.

04-16-2010 Swosu Faculty Present Research At American Chemical Society Meeting, Southwestern Oklahoma State University

THE BARK ARCHIVE 2010

Several SWOSU Department of Chemistry and Physics faculty participated in the recent 55th annual pentasectional meeting of the American Chemical Society held in Norman.

Mustang Daily, April 16, 2010

Cal Poly Student Newspaper

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

The Utah Statesman, April 16, 2010, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

April 16, 2010, Ohio University Board Of Trustees Meeting Minutes, Ohio University Board Of Trustees

Board of Trustees Meeting Minutes

Meeting minutes document the activities of Ohio University's Board of Trustees.

The Tiger Vol. 104 Issue 12 2010-04-16, Clemson University

Tiger Newspapers

No abstract provided.

The Murray State News, April 16, 2010, The Murray State News

Murray State University Collection

No abstract provided.

Reporter - April 16th 2010, Rit Reporter Staff

University Publications

No abstract provided.

Synthesis Of An Endothelial Cell Mimicking Surface Containing Thrombomodulin And Endothelial Protein C Receptor, Karl E. Kador

Department of Chemical and Biomolecular Engineering: Dissertations, Theses, and Student Research

Synthetic materials for use in blood contacting applications have been studied for many years with limited success. One of the main areas of need for these materials is the design of synthetic vascular grafts for use in the hundreds of thousands of patients who have coronary artery bypass grafting, many without suitable veins for autologous grafts. The design of these grafts is constrained by two common modes of failure, the formation of intimal hyperplasia (IH) and thrombosis. IH formation has been previously linked to a mismatching of the mechanical properties of the graft and has been overcome by creating grafts …

Sandspur, Vol 116, No 23, April 16, 2010, Rollins College

The Rollins Sandspur

Rollins College student newspaper, written by the students and published at Rollins College. The Sandspur started as a literary journal.

Volume Cxxvii, Number 19, April 16, 2010, Lawrence University

The Lawrentian

No abstract provided.

The Wooster Voice (Wooster, Oh), 2010-04-16, Wooster Voice Editors

The Voice: 2001-2011

This edition of the College of Wooster's student run newspapers was published on April 16 of 2010, and it is eight pages long. On Tuesday Jacqueline Grossman spoke in Lean Lecture on her escape from the Nazi invasion of France and how it impacted her life. Professor of Music Nancy Ditmer has been offered the job of President for MENC: National Association of Music Education. Page four has an article about the black lab puppy people have been seeing around campus, and how she is being trained to be a guide dog. Jennifer Graber, Professor of Religious Studies will have …

Eighteenth Annual Student Research And Creative Activities Symposium - April 16, 2010, Symposium Steering Committee

Student Research and Creative Activities Symposium 1993-2018

Participants - College of Arts and Sciences, College of Business and Management, College of Education, Graduate College, University Honors Program, McNair Scholars Program

Wright State University Celebration Of Research, Scholarship And Creative Activities 2010 Book Of Abstracts, Wright State University Office Of Undergraduate Research And Stemm Activities

Celebration of Undergraduate & Graduate Research, Scholarship, and Creative Activities Materials

The student abstract booklet is a compilation of abstracts from students' oral and poster presentations at Wright State University's inaugural Celebration of Research, Scholarship and Creative Activities on April 16, 2010.

Ecological Niche Modeling And Local Knowledge Predict New Populations Of Gymnocladus Assamicus A Critically Endangered Tree Species, Shaily Menon, Baharul I. Choudhury, M. Latif Khan, A. Townsend Peterson

Peer Reviewed Publications

Gymnocladus assamicus is a critically endangered tree species endemic to northeastern India. Local inhabitants traditionally used this species for a variety of purposes. However, rapid population declines led to the species being considered extinct, until fieldwork in 2004 to 2007 identified 14 discrete populations of 1 to 7 trees each. To overcome constraints on field surveys imposed by the region’s remoteness and rugged terrain, we targeted areas of further field inventories by estimating the potential distribution of the species. Ecological niche modeling enabled us to identify 26 sites which the model predicted to be highly suitable for the species’ occurrence. …

Crusader, April 16, 2010, College Of The Holy Cross

Student Newspapers

The student newspaper for the College of the Holy Cross in Worcester, Massachusetts. Articles include coverage of campus events and issues, sports, editorials and special features.

The Beacon - Vol 8 No. 12 - April 16, 2010, Merrimack College

The Beacon

The Beacon - the student newspaper of Merrimack College. Volume 8, Number 12 - April 16, 2010. 12 pages

Gene Flow And Dispersal Of The Caddisfly, Neothremma Alicia, In The Rocky Mountains Of Utah: A Multiscale Analysis, Xioben Jiang

Theses and Dissertations

We determined genetic variance and gene flow across multiple scales (reaches, tributaries, and catchments) to examine the dispersal ability of the caddisfly, Neothremma alicia in streams along the Wasatch Range in the Rocky Mountains of Utah. Neothremma alicia is one of the most abundant caddisflies in this region. We generated DNA sequence data (mitochondrial COI) from 34 reaches, nested in 15 tributaries distributed across 3 adjacent catchments. We identified 47 haplotypes from a total of 486 individuals. The most abundant haplotype (H1) was found at all sites/reaches and comprised 44% of the total number of individuals sequenced. The remaining rare …

The Influence Of Organizational Culture On The Existence Of Systems Employed To Improve Quality Of Care In Medical Office Practices, Donna Dugan

Theses and Dissertations

A frequently cited reason for poor quality of care in the ambulatory care setting is the lack of optimally designed systems to address care for those with preventive or chronic care needs. Organizational theory suggests that culture plays an important role in the shaping of these types of programs. The purpose of this cross-sectional study is to understand through descriptive and regression analysis of secondary data, the relationship between the existence of cultural characteristics such as collegiality, quality emphasis and autonomy, and the systems employed to improve quality of care within primary care practices. The study uses an integrated theoretical …

Neuroprotection With Anesthetics In Two Models Of Cerebral Ischemia, Rafael Eduardo Chaparro Buitrago

USF Tampa Graduate Theses and Dissertations

Neuroprotection with anesthetics has been studied for many decades; important advances in this field have modified the way Anesthesiologists treat patients in the operating room. Animal models have played an important role in the study of ischemia in the operating room. Recent studies have demonstrated that the effect of anesthetics seems to be different in different animal models. We decided to evaluate anesthetics in a well-known model of cerebral ischemia and also in hypotensive models designed by us. We used a model of cerebral ischemia (MCAO) to test anesthetics neuroprotective effect in a two-week period. Then, we used a model …

Exploration Of Sense Of Self And Humoral Immunity For Artificial Immune Systems: Algorithms And Applications, Senhua Yu

Electronic Theses and Dissertations Archive

Many interesting immunological processes and mechanisms provide a potential source of inspiration for researchers to build Artificial Immune System (AIS), among which self versus nonself recognition is one of the distinctive mechanisms that are explored for AIS with minimum logical and technique overlap for any existing techniques. This dissertation explores a revised sense of "self" suggested in Pattern Recognition Receptors Model as a new immunity-based approach called Conserved Self Pattern Recognition Algorithm (CSPRA). The CSPRA alleviates the intrinsic limit of negative selection algorithms by combining the results of both self pattern recognition and negative selection for anomaly detection rather than …

Illusion In Troilus And Cressida, Edward Janz

USF Tampa Graduate Theses and Dissertations

This thesis is an examination of Shakespeare's 1603 satire Troilus and Cressida that looks at illusion and the value given to it by means of war, Helen of Troy, and ultimately the two lovers themselves. Although it is depressingly obvious throughout the drama that life is an illusion, it is also obvious that there is a need for that illusion, and an equally profound necessity to have the illusion debunked.

The first part of the thesis examines the impact of war on Troy. This part concentrates on the myth of the hero, who like Falstaff presents himself to the world …