Digital Commons Network^™

Like Mother Like Child: An Investigation Of Mother Characteristics And Child Temperaments, Tempus Fugitt

Statistics

Much research has gone into what biological and social factors raise the risk of children developing cognitive, social, or behavioral problems. This project looks at what characteristics of the mother are significantly associated with different temperaments in the child which may predict problems developed in the child later in life. These characteristics include mother’s age, her education level, household income, parenting attitudes, involvement with the child, and drug and alcohol use. Data was used from the Fragile Families and Child Wellbeing Study conducted by the Office of Population Research at Princeton University. Cumulative logistic regression was used to analyze the …

Regalia-Induced Resistance In Powdery Mildew-Infected Grapevine Plants Correlates With The Induction Of Chalcone Synthase, Thomas Crottogini

Horticulture and Crop Science

No abstract provided.

Investigating Wood Welding Parameters Using A Prototype Welding Machine, Timothy R. Melin

Master's Theses

Understanding how different processing variables influence wood welded bonds is vital if the technique will ever be used to create engineered lumber without using adhesives. A variation of vibration welding, wood welding uses pressure and friction to bond materials together. During welding, heat causes a softening in the wood, a naturally occurring composite material. This softening leads to fiber entanglement and a bond forms upon cooling.

The goal of this research was to investigate several processing aspects of the wood welding procedure. A prototype wood welding machine, designed and fabricated from the ground up, was used to investigate the effects …

University News

Cal Poly Magazine

No abstract provided.

Use Of Endovac-Bovi In Pre-Weaned Calves, Jena Glasgow

Dairy Science

No abstract provided.

Cal Poly Embryo Recovery Record System, Kelsey Donahoo-Cheda

Dairy Science

No abstract provided.

Cystic Ovaries In Dairy Cattle, Lacey Morgan Rosenberg

Dairy Science

The objective of this literature review was to determine the potential causes and factors affecting the incidence of ovarian cysts in dairy cattle as well as to examine functionality of various preventative methods and treatments of cysts. The end product was to be a document outlining all the information available on the three different types of cysts that can develop on the bovine ovary, follicular cysts, luteal cysts, and cystic corpora lutea. The literature that was reviewed, most in the forms of research papers, articles, and reviews, came primarily from scientific journals and published books. The literature reviewed was only …

Controlling The Mineral Content Of Sweet Whey Powder In An Industrial Setting, Matthew W. Sawyer

Dairy Science

The objective of this project was to reduce the final ash content of sweet whey powder. The data for this project was collected over a two-week period, from July 13th to July 27th 2010 in a dairy plant in the Mid-West of the United States. The data is composed of particle size test, ash test, and pH test. The conclusions of this study are that multiple pre-heat treatment tank changes contribute to mineral content by requiring more buffering than usual. The low pH of this pre-heat liquid forces a need for more buffering. Particle segregation may play a role in …

Mustang Daily, December 1, 2010

Cal Poly Student Newspaper

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

Split Identification: Representations Of Rape In Gaspar Noé’S Irréversible And Catherine Breillat’S A Masoeur!/Fat Girl, Douglas Keesey

English

This article critically examines rape scenes in two films of the new extreme cinema, Gaspar No's Irrversible (2002) and Catherine Breillat's A ma sur!/Fat Girl (2001). On the surface, No's disturbing long-take rape scene is clearly designed to foster empathy with the woman's experience and to induce a physical aversion to rape. However, a deeper examination of the scene's ambiguous techniques reveals that they actually work to split the viewer's identification between the rapist and the woman he attacks. One function of this split is to lead the viewer who is presumed to be male along an emotional path from …

Cal Poly Magazine, Winter 2010

Cal Poly Magazine

No abstract provided.

Flowering Locus C Influences The Timing Of Shoot Maturation In Arabidopsis Thaliana, Laurie Mentzer, Tarah Yee, Tina Y. Wang, Edward Himelblau

Biological Sciences

No abstract provided.

Wireless Sensing Of Epileptiform Activity, Wade Barnes

Electrical Engineering

No abstract provided.

Pcr Ranch Development Analysis, Kristen Bowman

City and Regional Planning

No abstract provided.

Emerging Trends In Greenhouse Gas Thresholds Of Significance For Use Under The California Environmental Quality Act, Nancy E. Mathison

Master's Theses

This study determined the state of the practice and emerging trends in developing greenhouse gas (GHG) thresholds of significance for use under the California Environmental Policy Act (CEQA). To describe the adopted, proposed or considered approaches for developing thresholds of significance by air districts and the thought processes behind these decisions, information was obtained through surveys and phone interviews from twelve employees of air districts in California, State agencies, and consultants that are considered experts on this issue. The results of this study include a comparison matrix of the approaches of the three air districts that have adopted or proposed …

Modeling Of A Gyro-Stabilized Helicopter Camera System Using Neural Networks, Nicholas Joseph Layshot

Master's Theses

On-board gimbal systems for camera stabilization in helicopters are typically based on linear models. Such models, however, are inaccurate due to system nonlinearities and complexities. As an alternative approach, artificial neural networks can provide a more accurate model of the gimbal system based on their non-linear mapping and generalization capabilities.

This thesis investigates the applications of artificial neural networks to model the inertial characteristics (on the azimuth axis) of the inner gimbal in a gyro-stabilized multi-gimbal system. The neural network is trained with time-domain data obtained from gyro rate sensors of an actual camera system. The network performance is evaluated …

The Next Generation Cubesat: A Modular And Adaptable Cubesat Frame Design, James Dolengewicz, Lucas Whipple, Stephanie Wong

Mechanical Engineering

The goal of this project is to develop an improved next-generation CubeSat structure for Cal Poly’s PolySat program. Notable achievements include significantly increased ease of access, design to optimize payload space, improved machinability, increased modularity and a platform which allows for easy integration of future payloads.

Examining Relationship Interactions Of Adult Children Of Alcoholics, Diana I. Loera

Master's Theses

The following study explores the factors associated with security of romantic attachment in Adult Children of Alcoholics (ACOAs). ACOAs are more vulnerable to inconsistent parenting and consequently are more likely to develop negative internal models of self, a stable construct that affects romantic attachments (Bowlby, 1982; Ainsworth et al, 1989; Bartholomew, 1990). This study examined associations between parent, and peer relationships as possible resiliencies. It was hypothesized that ACOAs will report less secure attachments with their parents (as measured by the IPPA), less romantic attachment anxiety and avoidance (as measured by the ECR-R), and no significant difference in peer attachment …

Assessing Potential Industry Growth For Economic Development In Oakland, Ca, Sonia Aery

Master's Theses

This study prepares a set of career ladders for the population of Oakland. Career ladders are long-term progression pathways to help individuals advance, particularly in high wage, high growth careers. Career ladders combine different statistics on the demographics of a population with statistics about the area’s economic vitality and potential. This combination helps to identify the potential to strengthen an area’s economy and enhance individuals’ qualifications and wages.

One of the main reasons that people and large firms are attracted to a given city is the potential for economic stability. A stable economy is the result of the availability of …

Water Quality Performance Of A Reciprocating Biofilm Reactor For Treatment Of Dairy Wastewater, Jason Patrick Kane

Master's Theses

Removal of organic matter and nitrogen from concentrated wastewaters is often a complex and costly process that is rarely implemented in animal agriculture, such as the dairy industry, despite regulatory pressures and the high cost of land for manure application in some regions. This paper describes results from the first implementation for treatment of dairy farm wastewater of the relatively simple ReCip® technology. ReCip® typically consists of two basins filled with rock aggregate through which wastewater is flowed in series. One basin is full of wastewater and the other is only partially full. Wastewater is alternately pumped between the basins …

History Of The Indian Caste System And Its Impact On India Today, Manali S. Deshpande

Social Sciences

The Indian Caste System is historically one of the main dimensions where people in India are socially differentiated through class, religion, region, tribe, gender, and language. Although this or other forms of differentiation exist in all human societies, it becomes a problem when one or more of these dimensions overlap each other and become the sole basis of systematic ranking and unequal access to valued resources like wealth, income, power and prestige. The Indian Caste System is considered a closed system of stratification, which means that a person’s social status is obligated to which caste they were born into. There …

The Parents' Role In Childhood Obesity, Heather M. Wintrup

Psychology and Child Development

This paper is an examination of the current childhood obesity crisis in the U.S. and how this epidemic is related to psychological issues. Specifically, the role of parental forces on children’s health attitudes and habits is addressed. The following chapters will define and explain the current situation of childhood obesity, investigate the role parents have in contributing to their children’s weight development, and cover methods of intervention for families dealing with this serious health issue.

A Generational Look Into The Occurrence Of Child Maltreatment Among Latinos And Their Effects On Developmental Growth, Maria Teresa Sanchez Diosdado

Psychology and Child Development

Little is known about the prevalence or risk factors associated with child maltreatment among Latino immigrant and native born families. As a result, Latino children and families are often treated as a homogeneous group, with little understanding of the potential differences that may exist between immigrant and native-born families. This paper attempts to explain the concept of child maltreatment and explore the differences between the two groups, while taking into account the effects of acculturation, Belsky’s Ecological Model of Maltreatment, childrearing practices, and the developmental consequences of maltreatment. Finally, the role that Child Protective Services plays in this issue will …

Development And Validation Of A Light Weight, Energy Dense, Ready To Eat (Rte) Bar, Jacob Wilhelm-Maria Heick

Master's Theses

DEVELOPMENT AND VALIDATION OF A LIGHT WEIGHT, ENERGY DENSE, READY TO EAT (RTE) BAR

Jacob Wilhelm-Maria Heick

Providing additional calories in the form of an RTE bar to endurance athletes will increase performance and muscle re-synthesis, reduce muscle breakdown, and shorten recovery time. An RTE bar containing a blend of dairy proteins and carbohydrates will create a product with superior functionality, including bioactive and immunity enhancing properties from dairy derived ingredients. The protein will provide benefits in the form of easily digestible calories, essential amino acids and physical satiate.

A formulation was developed and optimized, resulting in a final product …

No-Till Vegetable Production At The Cal Poly Organic Farm, Nathaniel Jay Harkleroad

Master's Theses

Tillage and subsequent bare soil have been linked to erosion, nutrient leaching, reduced biological diversity, loss of organic matter, and release of CO2 into the atmosphere (Brady and Weil, 2004). The usefulness of an organic no-till system for transplanted vegetables was explored over two growing seasons. In 2007-2008, in a randomized complete block design, treatments of tilled and no-till (T and NT, respectively) were seeded to a dense grain and legume winter cover crop. Tilled plots were mown and disk-ploughed two times; NT plots retained a mow-killed mulch on the soil surface. There were less weeds in NT plots. A …

The Development And Validation Of A Finite Element Model Of A Canine Rib For Use With A Bone Remodeling Algorithm., Scott J. Sylliaasen

Master's Theses

Studies are currently being performed to determine the effects of bisphosphonate treatments on the structure and density of bone tissue. One of the pathways for gaining a better understanding of the effects of this and other treatments involves creating a computer simulation. Theory suggests that bone tissue structure and density are directly related to the manner in which the tissue is loaded. Remodeling is the process in which bone tissue is resorbed in areas of low stress distributions, and generated in areas of high stress distributions. Previous studies have utilized numerical methods and finite element methods to predict bone structure …

Artificial Skin Tactile Sensor For Prosthetic And Robotic Applications, Ross James Miller

Master's Theses

To solve the problem of limited tactile sensing in humanoid robotics as well as provide for future planned mechanical prostheses, an innovative tactile sensor system was created and embedded into two realistic-looking artificial skin gloves. These artificial skin tactile sensors used small piezoelectric ceramic disks to measure applied force at multiple points on each glove. The gloves were created using silicone rubber to simulate both the texture and look of human skin, while maintaining both flexibility and durability. The sensor outputs were buffered by high-impedance voltage-following operational amplifiers, and then read sequentially using a multiplexing scheme by a microcontroller. Sensor …

Assessment Of Morphology And Hemodynamics In Normal And Remodeled Microvasculature With Parameter Sensitivity Analysis, Shilpi Ghosh

Master's Theses

The goal of this study was to compare the morphological and hemodynamic characteristics of normal and remodeled vascular networks in the mouse gracilis muscle. To this end, previously developed models to assess flows and vascular branching were used to assess the normal and remodeled microcirculatory networks. The analysis revealed that the average individual vessel flow rates for vessels of similar caliber and total volumetric flow rates in the networks do not change for vessels of the same caliber after remodeling. Connectivity changes and average diameters primarily change in the larger arterioles after remodeling. A few correlations could be made between …

Anaerobic Co-Digestion Of Wastewater Treatment Pond Algae With Wastewater Sludge, Daniel Eric Heimel

Master's Theses

Microalgae harvested from wastewater treatment ponds can be anaerobically digested to produce biogas, a renewable fuel resource. However, past experiments have shown some limitations of algae digestion. Algal cell walls are thought to be resistant to digestion, and the high protein content of algae can lead to ammonia toxicity in digesters. Co-digestion of algae with substrates containing higher C:N ratios (e.g., waste paper) can be used to maintain non-inhibitory ammonia concentrations and increase methane production. However, high carbon waste co-substrates have become costly or are not readily available in many communities. Although domestic wastewater sludge has only a marginally higher …

Development Of Cubesat Vibration Testing Capabilities For The Naval Postgraduate School And Cal Poly San Luis Obispo, Marissa Brummitt

Master's Theses

The Naval Postgraduate School is currently developing their first CubeSat, the Solar Cell Array Tester CubeSat, or NPS-SCAT. Launching a CubeSat, such as NPS-SCAT, requires environmental testing to ensure not only the success of the mission, but also the safety of other CubeSats housed in the same deployer. This thesis will address the development of CubeSat vibration testing methodology at NPS, including subsystem testing, engineering unit qualification, and flight unit testing. In addition, the new Cal Poly CubeSat Test POD Mk III will be introduced and evaluated based upon comparison with the Poly Picosatellite Orbital Deployer (P-POD). Using examples from …