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Measuring And Comparing Quantum Yield In Two Species Of Marine Diatoms Subjected To Constant And Fluctuating Light Conditions, Matthew Leon Stone

Master's Theses

A small-scale study was conducted to determine the effects of light fluctuations on the photosynthetic efficiency of marine phytoplankton. Two species, Phaeodactylum tricornutum and Chaetoceros gracile were grown in specialized photobioreactors on a 12-hour:12-hour light:dark cycle. The cultures were diluted 50% daily to attain a specific growth rate of 0.70 d-1. To simulate vertical mixing in high turbidity habitats under various wind conditions, dense cultures were subjected to fluctuating light treatments with frequencies ranging from 0.10 Hz to 2.00 Hz. Parallel experiments subjected the cultures to static light conditions with equal total daily light doses as those of the cultures …

Lead And Attention-Deficit/Hyperactivity Disorder: A Meta-Analysis, James Kenneth Goodlad Iii

Master's Theses

Attention-Deficit/Hyperactivity Disorder (ADHD) is thought to have a significant neurological component, and several brain structures have been implicated. Environmental variables like lead have been shown to affect brain structures, which in turn impacts cognitive development and behavior. Some studies have begun to associate environmental variables like lead with the inattentive and hyperactive-impulsive symptoms of ADHD. This meta-analysis examined the association between different components of ADHD (including attention problems and hyperactivity/impulsivity) and level of lead exposure in children and adolescents. Articles focusing on the association between lead and inattention or hyperactivity-impulsivity symptoms were gathered from the online databases PsycINFO and Medline. …

A Content Analysis Of Statutory Grounds For Involuntary Termination Of Parental Rights: The Impacts And Susceptibility Of Incarcerated Mothers And Their Children, Holly Marie Duke

Master's Theses

As the myriad of complex circumstances surrounding incarceration and foster care debilitate the parent-child relationship, the likelihood of legal severance between an incarcerated parent and their child increases. Despite the nation’s mounting prison population over the last three decades, the growing interaction between the prison and foster care populations has received minimal attention in the literature. To date, the influence of the statutory grounds for involuntary termination of parental rights on the legal severance between incarcerated parents and their children has been largely ignored. The purpose of this research is to determine the susceptibility of incarcerated parents to the involuntary …

A Meta-Analysis Of Component Treatment Studies: Are The Parts As Good As The Whole?, Erin Jane Clarke

Master's Theses

Psychotherapy has been proven effective in treating a variety of mental health issues. However, there is disagreement in psychotherapy research about whether or not factors common to all psychotherapies or specific ingredients within a treatment package are responsible for successful treatment outcomes. Component studies are research designs specifically aimed at identifying the mechanisms of change in a full treatment package. Component studies do this by comparing the differences in outcome among dismantled treatment components and the full treatment protocol. The present metaanalytic review of component studies examined whether or not differences between these two treatment groups generally exist. Fifty-nine component …

Thermal Tolerance Of Age-0 Gulf Of Mexico Striped Bass (Morone Saxatilis): Ontogenetic And Genetic Effects, Corey Robert Anderson

Master's Theses

Striped bass, Morone saxatilis, were historically abundant in the Gulf of Mexico region but were largely extirpated from most Gulf rivers by the early 1960s. Since 1967 hatchery stocking has supported populations in Mississippi rivers and to date there is no evidence of natural reproduction. Intolerance of striped bass to high water temperature is a potential factor negatively impacting Gulf striped bass survival and reproductive fitness, and may be a limiting factor to reintroduction of the species in Mississippi. This work contributed to restoration efforts by establishing molecular tools necessary for genetic monitoring of striped bass restoration, and evaluating …

Impedance-Based Detection Of Tissue Using A Multi-Electrode Device, Shane Killian Fleshman

Master's Theses

Melanoma skin cancer is the abnormal growth of the melanocytes – the pigmented cells located in the epidermis. The current gold standard diagnostic technique for determining whether a lesion is cancerous involves subjectively examining suspicious lesions and performing an invasive biopsy to confirm melanoma. This method may neglect some lesions or cause scarring from biopsies that turn out to be benign. Thus, impedance-based detection using a multi-electrode device was investigated as a noninvasive technique to diagnose melanoma skin cancer. The multi-electrode device was designed with 8 equally spaced Ag/AgCl electrodes surrounding one central electrode at a 5 mm radius. The …

Living With Emerging Contaminants: Proteomics Of 4-Nonylphenol Exposed Arrow Goby (Clevelandia Ios), Sarah Emily Johnson

Master's Theses

Alkylphenol ethoxylates (APEs) are widely used in industrial and household products as surfactants. APEs degrade into more toxic ethoxylates, such as 4-nonylphenol (NP), which has been shown to be an endocrine disruptor and enhance the growth of tumor cells. Nonylphenol is wider spread in Pacific estuaries than originally thought. Organisms in Morro Bay, California contain some of the highest concentrations of NP reported, while containing few other contaminants. As a benthic mud-dwelling fish, the arrow goby (Clevelandia ios) may be exposed to high levels of NP due to high contaminant sequestration rates in anaerobic mud. While ecotoxicology suggests …

Seasonal And Anatomical Variation In Compact Bone Remodeling In The Adult Sheep, Joseph Calcagno

Master's Theses

ABSTRACT

SEASONAL AND ANATOMICAL VARIATION IN COMPACT BONE REMODELING IN THE ADULT SHEEP

Joseph Calcagno

In order to determine whether ovine compact bone is suitable for study of osteoporosis, the remodeling parameters of the untreated animal must be fully characterized. Ovine compact bone is an attractive large animal model due to its similarities in size and bone remodeling to humans. However hormonal, exercise, and dietary changes due to seasonal changes can cause treatment effects to be hidden or superimposed on existing changes in the bone. In order to determine if any seasonal or anatomical variation occurred in the compact bone …

Dimensional Stability Of Geosynthetic Clay Liners In Landfill Applications, Gregory R. Olsen

Master's Theses

An investigation was conducted related to the dimensional stability of geosynthetic clay liners (GCLs) in landfill applications. Multiple occurrences of panel separation of overlap seams in GCLs have been documented; however, explanation for the relative contribution of various mechanisms causing shrinkage has been limited. A systematic test program was conducted to determine the effects of a variety of conditions on GCL dimensional stability.

Effects of initial moisture content, permeant type, and overburden pressure were tested by subjecting various GCL products to wet-dry cycles and measuring the dimensional change with each cycle. Different GCL types were each tested under various combinations …

The Influence Of Chilling And Heat Accumulation On Bloom Timing, Bloom Length And Crop Yield In Almonds (Prunus Dulcis (Mill.)), Melanie M. Covert

Master's Theses

Almonds are one of the first commercial nut trees to bloom in early spring and thus are susceptible to temperature patterns prior to and during bloom which affect bloom timing, bloom length, pollination and nut set. Data used in this project include yearly dates of 90% bloom from 1996-2006, bloom length in days and final crop yields in pounds per tree for Nonpareil and Mission varieties. Data were collected from the University of California Cooperative Extension reports on the 1993-2006 Regional Almond Variety Trials in Butte, San Joaquin and Kern Counties. Temperature pattern models in the form of Chill Hours …

Madonna Inn: A Hotel In Context, Galadriel Bree Highhouse

Master's Theses

This paper examines the political, economic and social influences that contributed to the development of the Madonna Inn in San Luis Obispo. I provide a brief history of the hotel industry and place the Madonna Inn within the historiography and argue that the nexus of three elements in the 1950s and 1960s led to the growth and popularity of the Madonna Inn: fear of nuclear war, growth of the middle class, and the rise of automobile culture in America.

Residential Water Conservation: A Cross Comparative Analysis, Jeffrey M. Cook

Master's Theses

This thesis will explore different water conservation strategies and systems in the residential home, using the city of Irvine as a basis. The thesis will compare the financial implications between the different systems and as a return on investment. The analysis will also account for ecological and social implications on the occupants, in particular their standard of living and lifestyle changes. The thesis will explore the ability to conserve water in new residential construction and will provide a sustainable and conscientious schematic water design for the particular area of concern.

This thesis will act as a preliminary case study for …

Factors That Relate To Overweight And Obesity In Preschool Children: An Investigation Of Preschool Children In San Luis Obispo County, Kyla Tom

Master's Theses

In the United States the trend towards overweight and obesity has been a major health concern as it has been linked to a variety of health problems. A nation-wide initiative, “Let’s Move” created by Michelle Obama was launched in February 2010 with the goal that, in one generation; every child born will be at a healthy weight at the start of adulthood. Healthy People 2020 are national health objectives for the United States to obtain by 2020. In 2009, San Luis Obispo (SLO) County preschool children overweight and obesity rates mirrored national rates of 1 in 5 four-year-old children were …

Wind- Chimney (Integrating The Principles Of A Wind-Catcher And A Solar-Chimney To Provide Natural Ventilation), Fereshteh Tavakolinia

Master's Theses

WIND-CHIMNEY

Integrating the principles of a wind-catcher and a solar chimney to provide natural ventilation

Fereshteh Tavakolinia

Abstract

This paper suggests using a wind-catcher integrated with a solar-chimney in a single story building so that the resident might benefit from natural ventilation, a passive cooling system, and heating strategies; it would also help to decrease energy use, CO2 emissions, and pollution. This system is able to remove undesirable interior heat pollution from a building and provide thermal comfort for the occupant.
The present study introduces the use of a solar-chimney with an underground air channel combined with a wind-catcher, all …

The Relationship Between Salivary Cortisol Levels And Stressful Behaviors Upon The Introduction Of A New Exhibit Mate In Captive Black And Gold Howler Monkeys (Alouatta Caraya) At The Hattiesburg Zoo, Cassie Mechelle Chandler

Master's Theses

Salivary cortisol levels were taken on a male and a female howler monkey and compared with behavioral observations during their introduction to one another into an exhibit at the Hattiesburg Zoo in order to determine the link between behavior and stress. This study sought to answer the following research questions: What behavioral responses occur when two howler monkeys are introduced into the same exhibit at a zoo? How stressed are the animals at different stages of the introduction? And, what is the correlation between behaviors and hormones, if any?

The study spanned four phases including a baseline phase, the initial …

Rejection Sensitivity And Early Relationships: Explaining Differential Outcomes In Early Dating, Heather Holly

Master's Theses

No abstract provided.

Effects Of Column Stiffness On Seismic Behavior Of Steel Plate Shear Walls, Xuhua Guo

Master's Theses

Steel plate shear walls (SPSWs) are a lateral force resisting system consisting of thin infill steel plates surrounded by boundary frame members. The infill steel plates are allowed to buckle in shear and subsequently form diagonal tension field actions during earthquake events. Hysteretic energy dissipation of this system is primarily achieved through yielding of the infill plates. Conceptually, in a SPSW system with ideally rigid columns pinned to ground, the infill plates at different stories will yield simultaneously as a result of the lateral loads. However, when the columns become flexible, infill plate yielding may initially occur at one story …

The Gendered Geography Of War: Confederate Women As Camp Followers, Rachael L. Ryen

Master's Theses

The American Civil War is often framed as exclusively masculine, consisting of soldiers, god-like generals, and battle; a sphere where women simply did not enter or coexist. This perception is largely due to the mobilization of approximately six million men, coupled with the Victorian era which did not permit women to engage in the public sphere. Women are given their place however, but it is more narrowly defined as home front assistance. Even as women transitioned from passive receivers to active participants, their efforts rarely defied gender norms. This thesis looks at Confederate female camp followers who appeared to defy …

Decontamination Of Endodontic Gutta-Percha: An In-Vitro Study, Mariya Shnaydman

Master's Theses

No abstract provided.

Development And Prototyping Of A Ground Fault Circuit Interrupter For 3-Phase 480 Volt Systems, Matthew R. Norlander

Master's Theses

Ground Fault Circuit Interrupter (GFCI) technology was first introduced in the NEC in 1971, yet four decades later the technology has not been introduced to a great extent outside of the home environment. This thesis introduces the difficulties encountered in low-voltage three phase ground fault current detection, and adopts a previously patented tripping scheme to develop and prototype a digital relay for 3-phase 480 volt systems capable of the sensitivity and speed required for personnel safety. Results demonstrate the feasibility of the concept and suggest commercial development should be pursued. The prototype is capable of mA sensitivity and reliably detects …

Upper Salinas Headwaters Conservation Plan, Justin T. Saydell

Master's Theses

The Upper Salinas Headwaters Conservation Plan is an effort to understand the cultural and ecosystem resources in the region, develop tools for conservation planning, and suggest a strategy and plan of action for implementation of those strategies. The plan covers a 218 square mile area between the Santa Lucia and the La Panza mountain ranges, south of Atascadero and east of the City of San Luis Obispo. The Conservation Area consists of rugged terrain made up of vast-relatively untouched open space. The area consists of several different vegetative communities including oak savannah grasslands, mixed hardwood and oak stands, shrubland, wetland …

Residual Communication And Social Deficits In Individuals With A History Of Autism Spectrum Disorders Who Achieved Optimal Outcomes, Alyssa J. Orinstein

Master's Theses

Autism spectrum disorders (ASDs) were once considered lifelong disorders, but a small body of research indicates children with ASDs are capable of gaining skills, such that they no longer meet diagnostic criteria for any ASD. These individuals are considered to have achieved an optimal outcome. This study examined communication and social functioning in a group of adolescents with a history of autism spectrum disorders who have achieved optimal outcomes. Thirty-two such individuals between the ages of eight and twenty-one were matched on age, sex, and nonverbal IQ to 33 individuals with high-functioning autism and 25 typically developing adolescents. The groups …

The Efficacy Of Antibiotic Residue Screening Tests For The Detection Of Natural Antimicrobials In Milk, Stacey L. O'Donnell

Master's Theses

No abstract provided.

Worksite Weight Loss Intervention Utilizing Monetary Incentives And Contingency Management For Overweight And Obese Employees At Risk For Type 2 Diabetes, Santina A. Galbo

Master's Theses

Abstract:

Purpose: The present study aimed to evaluate the effect of a financial incentive on weight loss and diabetes risk score (DRS) following a tailored National Diabetes Education Program (NDEP) weight loss intervention among adults who are overweight/obese and who are at risk for type 2 diabetes. An additional aim to evaluate changes in weight loss self-efficacy (WLSE), exercise self-efficacy (ESE), healthy eating score (HES) and movement through the stages of change (SOC) from pre to post intervention.

Design: Four long-term care facilities, from one corporation, were randomly assigned to either an Incentivized Program (IP) or a Non-Incentivized Program (NIP). …

Bodyweight Squat Movement Changes After A High-Intensity Short-Rest Workout, David R. Hooper

Master's Theses

High intensity (≥75%1RM), short rest (≤30 seconds) workouts (HISR) have increased in popularity in recent years despite very little scientific study as well as contradicting the American College of Sports Medicine (ACSM) position stand. The purpose of this study was to assess the changes in movement associated with the fatigue resulting from a HISR workout. 14 males underwent a 3 dimensional analysis of 5 bodyweight squats before and after a HISR workout. Peak angle, total displacement and rate were assessed for knee flexion, trunk flexion, hip flexion, hip rotation and hip adduction. Subjects were split in to two groups: high …

Assessing Near-Field Black Carbon Variability Due To Wood Burning And Evaluating Regression Models And Isc Dispersion Modeling, Stella Tan

Master's Theses

PM_2.5 variability within the neighborhood scale has not been thoroughly studied for wood burning communities. High variability in near-field PM_2.5 concentration may lead to harmful public exposure since monitoring does not occur on that scale. This study measures near-field PM_2.5 variability by measuring black carbon (BC), a component of PM_2.5, in a 1 km² area located in Cambria, California. BC and meteorological data (when meteorological instruments were available) were measured over thirteen 12-hour intensive operation periods (IOPs) occurring over the winters of 2009 and 2010. Near-field BC variability was measured to understand the type …

Small Wind Turbine Blade Sensor For Condition Based Maintenance, Chun Kau Cheung

Master's Theses

Wind Energy is a fast growing industry. However, wind turbines are expensive to build, so they need proper maintenance to prolong service life. Since blades are the most important components in the wind turbine, this project prototyped a low cost sensing system to monitor blades' health. The sensor board uses Atmel microcontrollers to monitor the blade's vibration frequency by sampling a data set of 128 acceleration measurements. An integer version of Fast Fourier Transform is used to process those data. The result is then sent via radio wirelessly to a receiver for future processing. Through calculation with collected data, theoretically, …

Vibration-Based Health Monitoring Of Multiple-Stage Gear Train And Differential Planetary Transmission Involving Teeth Damage And Backlash Nonlinearity, Andrew Patrick Sommer

Master's Theses

The objective of this thesis is to develop vibration-based fault detection strategies for on-line condition monitoring of gear transmission systems. The study divides the thesis into three sections. First of all, the local stresses created by a root fatigue crack on a pinion spur gear are analyzed using a quasi-static finite element model and non-linear contact mechanics simulation. Backlash between gear teeth which is essential to provide better lubrication on tooth surfaces and to eliminate interference is included as a defect and a necessary part of transmission design. The second section is dedicated to fixed axis power trains. Torsional vibration …

Protective Effects Of Milk Phospholipids Against Uv Photodamage In Human Skin Equivalents, Zyra Achay

Master's Theses

The ultraviolet (UV) spectrum has been known to cause damage to skin in varying degrees. UVB radiation (290-320 nm) in particular, has been proven to be highly mutagenic and carcinogenic in many animal experiments compared to either UVA or UVC. The alarming rate of increase in skin cancer incidence has prompted many investigators to pursue other alternatives to sunscreens including changes in lifestyle habits and dietary consumption in order to boost our efforts in tackling this widespread disease. Previous studies employing confocal reflectance, MTT assay and histology suggest that milk phospholipids may possess protective properties against UVB-mediated damage but the …

Supporting School Wellness Policices Through Game On! Implementation In 13 High-Need Connecticut Schools, Sarah M. Bourque

Master's Theses

No abstract provided.