Modeling Cardiac Muscle Mechanics, 2012 Trinity College
Modeling Cardiac Muscle Mechanics, Lorenzo Sewanan
Senior Theses and Projects
The heart is a complex electro-mechanical system which is intrinsically and intimately linked to physiology and pathology. Cardiac muscle tissue underlies the dynamics of the heart; understanding cardiac muscle tissue allows insight into the working of the heart at a fundamental level. Indeed, models allow a theoretical understanding of systems which necessarily exceeds that of experiment. Here, we describe a novel mathematical model of cardiac muscle mechanics based on functional relations.
An Investigation Of Reflective Mulches For Use Over Capillary Mat Systems For Winter-Time Greenhouse Strawberry Production, 2012 University of Nebraska-Lincoln
An Investigation Of Reflective Mulches For Use Over Capillary Mat Systems For Winter-Time Greenhouse Strawberry Production, George E. Meyer, Ellen T. Paparozzi, Elizabeth Walter-Shea, Erin E. Blankenship, Stacy A. Adams
Department of Agronomy and Horticulture: Faculty Publications
Photosynthethically active radiation (PAR) is a principle environmental variable used by horticultural specialists, agronomists and ecosystem modelers to characterize the quantity and quality of light conducive to plant growth and development. Spatial distribution of PAR in a greenhouse can be quite variable and diffuse throughout the day time photoperiod, especially at low sun angles in northern regions of the United States. Four colors of reflective plastic mulches (white, red, olive, and black) were evaluated for winter-time strawberry (Fragaria × ananassa Duch.) production based on their reflectance and transmittance properties in a double-polyethylene, plastic-glazed Quonset greenhouse inNebraska. The spectral properties …
Noninvasive Assessment And Modeling Of Diabetic Cardiovascular Autonomic Neuropathy, 2012 University of Kentucky
Noninvasive Assessment And Modeling Of Diabetic Cardiovascular Autonomic Neuropathy, Siqi Wang
Theses and Dissertations--Biomedical Engineering
Noninvasive assessment of diabetic cardiovascular autonomic neuropathy (AN): Cardiac and vascular dysfunctions resulting from AN are complications of diabetes, often undiagnosed. Our objectives were to: 1) determine sympathetic and parasympathetic components of compromised blood pressure regulation in patients with polyneuropathy, and 2) rank noninvasive indexes for their sensitivity in diagnosing AN. Continuous 12-lead electrocardiography (ECG), blood pressure (BP), respiration, regional blood flow and bio-impedance were recorded from 12 able-bodied subjects (AB), 7 diabetics without (D0), 7 with possible (D1) and 8 with definite polyneuropathy (D2), during 10 minutes supine control, 30 minutes 70-degree head-up tilt and 5 minutes supine recovery. …
An Inexpensive Method For Creating Paste To Be Used In Paper-Based Microfluidic Devices, 2011 California Polytechnic State University, San Luis Obispo
An Inexpensive Method For Creating Paste To Be Used In Paper-Based Microfluidic Devices, Kirra Marie Sankey
Biomedical Engineering
Microfluidic devices are diagnostic tools that are small, portable, and inexpensive. This makes them ideally suited for resource-limited settings. To construct a 3D device, each layer of patterned paper is stacked using double-sided tape with holes corresponding to the pattern. It is necessary to have a paste to fill the holes in the tape and provide a medium for the fluid to wick through. The powder used to make the paste is very expensive and must be bought in bulk (an estimated $1121 - $1231), so it is not convenient for the Biomedical (BMED) department to use. This project was …
Feasibility Of A Touch Sensitive Breast Phantom For Use In The Training Of Physicians In Clinical Breast Examination, 2011 University of Tennessee - Knoxville
Feasibility Of A Touch Sensitive Breast Phantom For Use In The Training Of Physicians In Clinical Breast Examination, Corinne Ashlie Davis, Katherine Lynn Mittura, Grace Elizabeth Copeland, Erica Martina Hawkins
Chancellor’s Honors Program Projects
No abstract provided.
Development Of A Novel Methodology For Indoor Emission Source Identification, 2011 BEESL Lab., Syracuse University
Development Of A Novel Methodology For Indoor Emission Source Identification, Kwanghoon Han
Kwanghoon Han
The objective of this study was to develop and evaluate a methodology to identify individual sources of emissions based on the measurements of mixed air samples and the emission signatures of individual materials previously determined by Proton Transfer Reaction-Mass Spectrometry (PTR-MS), an on-line analytical device. The methodology based on signal processing principles was developed by employing the method of multiple regression least squares (MRLS) and a normalization technique. Samples of nine typical building materials were tested individually and in combination, including carpet, ceiling material, gypsum board, linoleum, two paints, polyolefine, PVC and wood. Volatile Organic Compound (VOC) emissions from each …
The Role Of Conflict Management On Virtual Team Performance And Satisfaction, 2011 Old Dominion University
The Role Of Conflict Management On Virtual Team Performance And Satisfaction, Pilar Pazos, Anil Ustun, Rolando Delaguila
Engineering Management & Systems Engineering Faculty Publications
The role that input factors from project planning processes play on conflict emergence and conflict resolution in virtual teams is not well understood. Of particular interest for this paper is the role that factors during planning stages play in preventing interpersonal conflict, supporting conflict resolution and ultimately enhancing team outcomes in virtual team settings. This study examines the relationships among commitment to team goals, conflict management and team outcomes in virtual teams. First we provide an in depth review of relevant empirical findings. Next, we describe a study examining the relationships between three sets of variables: 1) goal commitment, 2) …
A Secure Behavior Modification Sensor System For Physical Activity Improvement, 2011 Claremont Graduate University
A Secure Behavior Modification Sensor System For Physical Activity Improvement, Alan Price
CGU Theses & Dissertations
Today, advances in wireless sensor networks are making it possible to capture large amounts of information about a person and their interaction within their home environment. However, what is missing is how to ensure the security of the collected data and its use to alter human behavior for positive benefit.
In this research, exploration was conducted involving the "infrastructure" and "intelligence" aspects of a wireless sensor network through a Behavior Modification Sensor System. First was to understand how a secure wireless sensor network could be established through the symmetric distribution of keys (the securing of the infrastructure), and it involves …
Integration Of Microfluidics With Surface Plasmon Resonance, 2010 California Polytechnic State University, San Luis Obispo
Integration Of Microfluidics With Surface Plasmon Resonance, Scott B. Fratzke
Master's Theses
This thesis successfully integrates laminate microfluidic devices with an analytic Surface Plasmon Resonance (SPR) instrument. Integration was accomplished at low-cost using materials such as polydimethylsiloxane (PDMS), Poly(methyl methacrylate) (PMMA), Tygon tubing, and a 3-way stopcock. The main components of this thesis are the design and fabrication of the low-cost, in-house fluidics that can integrate with upstream microfluidics and the validation of the in-house fluidics using the Biosensing Instruments BI-2000 SPR instrument. The low-cost fluidics was designed and fabricated “in-house” using a novel investment casting technique that required the use of laser cutting technology to make a master cast, and candle …
Determination Of Material Emission Signatures By Ptr-Ms And Their Correlations With Odor Assessments By Human Subjects, 2010 BEESL Lab., Syracuse University
Determination Of Material Emission Signatures By Ptr-Ms And Their Correlations With Odor Assessments By Human Subjects, Kwanghoon Han
Kwanghoon Han
The objectives of this study were to determine volatile organic compound (VOC) emission signatures of nine typical building materials by using proton transfer reaction-mass spectrometry (PTR-MS) and to explore the correlation between the PTR-MS measurements and the measurements of acceptability by human subjects. VOC emissions from each material were measured in a 50-l small-scale chamber. Chamber air was sampled by PTR-MS to determine emission signatures. Sorbent tube sampling and TD-GC/MS analysis were also performed to identify the major VOCs emitted and to compare the resulting data with the PTR-MS emission signatures. The data on the acceptability of air quality assessed …
Robust Dynamic Balance Of Ap-1 Transcription Factors In A Neuronal Gene Regulatory Network., 2010 Thomas Jefferson University
Robust Dynamic Balance Of Ap-1 Transcription Factors In A Neuronal Gene Regulatory Network., Gregory M Miller, Babatunde A Ogunnaike, James S Schwaber, Rajanikanth Vadigepalli
Department of Pathology, Anatomy, and Cell Biology Faculty Papers
BACKGROUND: The octapeptide Angiotensin II is a key hormone that acts via its receptor AT1R in the brainstem to modulate the blood pressure control circuits and thus plays a central role in the cardiac and respiratory homeostasis. This modulation occurs via activation of a complex network of signaling proteins and transcription factors, leading to changes in levels of key genes and proteins. AT1R initiated activity in the nucleus tractus solitarius (NTS), which regulates blood pressure, has been the subject of extensive molecular analysis. But the adaptive network interactions in the NTS response to AT1R, plausibly related to the development of …