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Airlift Column Photobioreactors For Porphyridium Sp. Culturing: Part Ii. Verification Of Dynamic Growth Rate Model For Reactor Performance Evaluation, Hu Ping Luo, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

Dynamic Growth Rate Model Has Been Developed to Quantify the Impact of Hydrodynamics on the Growth of Photosynthetic Microorganisms and to Predict the Photobioreactor Performance. Rigorous Verification of Such Reactor Models, However, is Rare in the Literature. in This Part of Work, Verification of a Dynamic Growth Rate Model Developed in Luo and Al-Dahhan (2004) [Biotech Bioeng 85(4): 382-393.] Was Attempted using the Experimental Results Reported in Part I of This Work and Results from Literature. the Irradiance Distribution Inside the Studied Reactor Was Also Measured at Different Optical Densities and Successfully Correlated by the Lambert-Beer Law. When Reliable Hydrodynamic …

Separation And Liquid Chromatography Using A Single Carbon Nanotube, Riju Singhal, Vadym Mochalin, Maria R. Lukatskaya, Gary Friedman, Yury G. Gogotsi

Chemistry Faculty Research & Creative Works

Use of a single template-grown carbon nanotube as a separation column to separate attoliter volumes of binary mixtures of fluorescent dyes has been demonstrated. The cylindrical nanotube walls are used as stationary phase and the surface area is increased by growing smaller multi-walled carbon nanotubes within the larger nanotube column. Liquid-liquid extraction is performed to separate selectively soluble solutes in a solvent, and chromatographic separation is demonstrated using thin, long nanotubes coated inside with iron oxide nanoparticles. The setup is also used to determine the diffusion coefficient of a solute at the sub-micrometer scale. This study opens avenues for analytical …

Special Issues In Engaging And Collaborating With Families Of English Language Learners, Stephanie Allison Strouse

Dissertations and Theses @ UNI

Research demonstrates positive outcomes associated with family involvement (Fl), but little exists specific to English Language Learners' (ELLs) FI. Factors impacting FI are identified, but it is unclear which educators view as most significant and what practices are implemented to address them. This study utilized survey data to examine educators' attitudes within an Iowa Area Education Agency regarding FI of ELLs, current practices, perceptions of practices' effectiveness, and professional development (PD) related to ELLs. Participants reported positive relationships with families of ELLs and that ELL families value education, yet only moderate satisfaction with ELL FI. Results indicate incongruity between common …

Leadership Distinctions : The Impact Of Leadership On Teachers Of Second Chance Reading, Rebecca Sue Williams

Dissertations and Theses @ UNI

Second Chance Reading (SCR), an instructional framework that targets and supports struggling adolescent readers and determined to be a sound and viably researched framework, can assist teachers in building and supporting proficient and lifelong learners when implemented as intended. This study examined educators from five unique communities who recently implemented the program. Four key questions guided the research and became the focus during semi-structured purposive interviews. (1) What was the relationship between Second Chance Reading teachers and principal leadership? (2) What leadership qualities were necessary to support Second Chance Reading teachers? (3) What barriers were preventing teachers from accomplishing their …

Assistive Technology For Students With Disabilities: Resources And Challenges Encountered By Teachers, Dawn Larae Jacobsen

Dissertations and Theses @ UNI

Assistive technology may be a solution for students with disabilities who are struggling to achieve academic growth; however, the consideration for assistive technology process is not prevalent in schools.

The purpose of this qualitative study was to take an in-depth look at the processes and factors that teachers of students with disabilities used in considering, adopting, and utilizing assistive technology to meet the needs of their students. Three teachers in one rural school shared the resources and challenges they encountered in the assistive technology process. Furthermore, using Rogers's Diffusion of Innovation Theory and Davis's Technology Acceptance Model as theoretical frameworks, …

Student-Centered Literacy Instruction: An Examination Of An Elementary Teacher's Experience, Carolyn Marie Wiezorek

Dissertations and Theses @ UNI

In this qualitative study, I examined and interpreted the literacy instruction of a fourth grade instructor who identified herself as a student-centered teacher. I sought to understand and interpret the beliefs and attitudes of my participant, Julie. Through seven unstructured interviews and five observations, I collected, and simultaneously interpreted, data. Julie freely shared her beliefs, successes, challenges, and frustrations regarding her literacy instruction.

Because of the contextual nature of the study I sought emerging themes through analysis and reflection. Four themes surfaced: attitude and philosophy, environment, instructional practices, and impact on students. Julie possessed an attitude that all students could …

Case Study On The Journey Of An Elementary School Labeled As A Persistently Low-Achieving School, Annette Duncan

Dissertations and Theses @ UNI

This study examined an elementary school, located in an urban school district, which was labeled as a Persistently Low-Achieving School (PLAS) by the federal government in 2009 in order to determine how the school planned to change leadership and staff; increase student achievement; and implement new approaches for changes in school climate.

The purpose of this study was to investigate the response of this school in the following areas:

1. Professional Practices of Teachers and Administrators: What impact did the PLAS label have on the professional practices of teachers and administrators in this building?

2. Curriculum and Academic Achievement: What …

Destination Attractiveness Of The Silos And Smokestacks National Heritage Area, Puyong Choi

Dissertations and Theses @ UNI

The purpose of this study was to identify the characteristics of destination attractiveness of the Silos and Smokestacks National Heritage Area (SSNHA) in Iowa using the relative attractiveness and importance of the 15 attributes identified by Gearing, Swart, and Var's (1974) scale and 3 attributes identified by Hu and Ritchie (1993). These attributes represent the overall destination attractiveness of the Silos and Smokestacks National Heritage Area (SSNHA) in Iowa. This study focused on the perspective of visitors and tourism experts.

Fishbein's (1967) multi-attribute model was used to determine the attitudes and preferences of the participants. The model is used to …

Using Metarules To Integrate Knowledge In Knowledge Based Systems. An Application In The Woodworking Industry, Alvaro Villavicencio

Dissertations and Theses @ UNI

The current study addresses the integration of knowledge obtained from Data Mining structures and models into existing Knowledge Based solutions. It presents a technique adapted from common KADS and spiral methodology to develop an initial knowledge solution using a traditional approach for requirement analysis, knowledge acquisition, and implementation. After an initial prototype is created and verified, the solution is enhanced incorporating new knowledge obtained from Online Analytical Processing, specifically from Data Mining models and structures using meta rules. Every meta rule is also verified prior to being included in the selection and translation of rules into the Expert System notation. …

The Design And Evaluation Of Wireless Sensor Networks For Applications In Industrial Locations, Hameed Madwar

Dissertations and Theses @ UNI

In manufacturing industries, there exist many applications where Wireless Sensor Networks (WSN's) are integrated to provide wireless solution for the automated manufacturing processes. It is well known that industrial environments characterized by extreme conditions such as high temperature, pressure, and electromagnetic (EM) interference that can affect the performance of the WSN's. The key solution to overcome this performance issue is by monitoring the received Signal Strength Index (RSSI) at the received sensor of the WSN device and track frame error rate of wireless packets.

ZigBee is a wireless sensor network (WSN) standard designed for specific needs of the remote monitoring …

An Integrated Framework For Freight Forwarders:Exploitation Of Dynamic Information For Multimodal Transportation, Farshid Azadian

Wayne State University Dissertations

Advent of real-time information broadcasting technologies, growth in demand for air-cargo, and increased congestion and variability on air-road network, are the main forces compelling today's air-freight forwarders to improve their operational decision-making to be more competitive and responsive to needs of customers. This research studies the air-cargo transportation on both road (short-haul) and air (long haul) network from the perspective of a mid-size freight forwarder.

We develop a routing algorithm for congestion avoidance on air-network based on historical data and introduce an innovative approach to incorporate real-time information to enable dynamic routing of cargo on a stochastic air-network. In the …

Enhancing The Mechanical Properties Of A Hydroxyapatite-Collagen Bone Surrogate, Richard Franz Banglmaier

Wayne State University Dissertations

The synthesis of biomimetic hydroxyapatite-collagen composites is desirable from the perspective of graft elimination and load-bearing support when treating damaged or diseased bone. Bone is an organized network of carbonated hydroxyapatite mineralized collagen, whose strength and toughness is dependent on the organized array of mineralized collagen fibers that align with applied physiologic stresses. The apatitic calcium phosphate phase, hydroxyapatite, is promising for the biomimetic mineralization of collagen. Hydroxyapatite-collagen composites are osteoconductive and resorbable. However, the mechanical properties of these composites are one or more orders of magnitude less than bone. The aim of this study was to produce a bone-like …

Multistable Shape-Shifting Surfaces (Mssss), Paul Joseph Montalbano

USF Tampa Graduate Theses and Dissertations

This paper presents designs for Multistable Shape-Shifting Surfaces (MSSS) by introducing bistability into the Shape-Shifting Surface (SSS). SSSs are defined as surfaces that retain their effectiveness as a physical barrier while undergoing changes in shape. The addition of bistability to the SSS gives the surface multiple distinct positions in which it remains when shifted to, i.e. by designing bistability into a single SSS link, the SSS unit cell can change into multiple shapes, and stabilize within the resulting shape, while maintaining integrity against various forms of external assaults normal to its surface. Planar stable configurations of the unit cell include, …

Chyd1 Solution Phase Synthesis Optimization And The Development Of A Novel Human Growth Hormone Antagonist And Agonist, Philip Murray

USF Tampa Graduate Theses and Dissertations

Inhibiting protein-protein interactions to achieve a therapeutically desired effect has been a goal in the field of drug discovery for decades. Recently, advances in peptidomimetics have led researches to the use of cyclized peptides to achieve this goal. Cyclization of linear peptides restricts the number of conformations of the peptide, increasing the peptide's affinity to binding to the desired target. Cyclization also stabilizes the peptide, allowing the peptide to be resistant to proteases. This study explores the optimization of solution phase synthesis of an important integrin-mediated cell adhesion cyclic peptide for the therapeutic inhibition of multiple myeloma, cHYD1. cHYD1 was …

Encapsulation Of High Temperature Phase Change Materials For Thermal Energy Storage, Rupa Nath

USF Tampa Graduate Theses and Dissertations

Thermal energy storage is a major contributor to bridge the gap between energy demand (consumption) and energy production (supply) by concentrating solar power. The utilization of high latent heat storage capability of phase change materials is one of the keys to an efficient way to store thermal energy. However, some of the limitations of the existing technology are the high volumetric expansion and low thermal conductivity of phase change materials (PCMs), low energy density, low operation temperatures and high cost. The present work deals with encapsulated PCM system, which operates at temperatures above 500°C and takes advantage of the heat …

Multiple Intelligences In The Text: Examining The Presence Of Mi Tasks In The Annotated Teacher's Editions Of Four High School United States History Textbooks, Carey Mullican

USF Tampa Graduate Theses and Dissertations

The current state of the social studies classroom comprises one of uninspired students using unexciting textbooks as their guide for learning U.S. history (Hope, 1996; NCES, 1993; Banks, 1990; Wakefield, 2006). With multiple intelligences gaining popularity in education, renewed hope exists for social studies to produce quality textbooks with differentiated instruction to reach all learners. The purpose was to design a rubric for measuring the presence of multiple intelligences structured tasks in teacher's editions of four 11th grade U.S. history textbooks. Using 1995 to 2007 as a purposeful sample of consistent authorships and similar publications, the study looked at teacher's …

Defining Earth Smarts: A Construct Analysis For Socioecological Literacy Based On Justly Maintaining Quality Of Life, Bryan H. Nichols

USF Tampa Graduate Theses and Dissertations

This paper describes the creation and validation of a new educational construct. Socioecological literacy, or earth smarts, describes the qualities we need to justly maintain or improve our quality of life in a changing world. It was created using construct analysis techniques and systems tools, drawing on an extensive, transdisciplinary body of literature. Concepts related to environmental, ecological and scientific literacy, sustainability and citizenship were combined with educational frameworks, new research in science education, and modern cognitive psychology. After the initial formulation, the results were considered by a variety of experts and professionals from the fields of ecology, environmental science …

Mangroves, Mudbanks And Seawalls: Political Ecology Of Adaptation To Sea Level Rise In Suriname, Ravic Nijbroek

USF Tampa Graduate Theses and Dissertations

This study seeks to understand how global discourses of sea level rise (SLR) and mangrove ecology influence national climate change adaptation policy to reduce coastal vulnerability in Suriname. A majority of the Surinamese population lives along the low elevation coastal zone and is highly exposed to projected SLR. Failure by the international community to reach agreement on climate change mitigation means that vulnerable coastal communities must adapt. The Suriname coast is predominantly shaped by mudbanks and mangroves which together provide protection against coastal erosion and trap sediments resulting in coastal accretion. Knowledge claims of mangrove ecology and utility in SLR …

Micronekton And Macrozooplankton Of The Western Antarctic Peninsula And The Eastern Ross Sea: Contrast Between Two Different Thermal Regimes, Melanie Leigh Parker

USF Tampa Graduate Theses and Dissertations

ABSTRACT

Micronekton and macrozooplankton were sampled from the Western Antarctic Peninsula (WAP) and eastern Ross Sea regions. Samples were collected over the course of six research cruises to the Southern Ocean. Four of those cruises were conducted in the Marguerite Bay region of the WAP during the austral fall and winter of 2001 and 2002. A fifth cruise sampled faunal assemblages at nine sites, ranging from Joinville Island at the northern tip of the WAP to Charcot Island near the southern extent of the WAP, during austral fall 2010. A sixth cruise was conducted in the pack ice within the …

Field And Laboratory Comparison Of The Hydraulic Performance Of Two Ceramic Pot Water Filters, Duncan Peabody

USF Tampa Graduate Theses and Dissertations

Currently 884 million people worldwide are living without access to an improved source of drinking water (WHO/UNICEF, 2011). Piped-water on premises is the ultimate goal of World Health Organization (WHO) due to the ability to treat all of the water and distribute it safely in pressurized pipes. However, Household Water Treatment and Safe Storage (HWTS) is an option for improving the quality of drinking water where that infrastructure is not yet developed, especially where there is a risk of recontamination between point of collection and point of use (Clasen, 2006).

This study analyzed one such HWTS, the ceramic pot water …

Cell Adhesion And Migration On Ndga Cross-Linked Fibrillar Collagen Matrices For Tendon Tissue Engineering, Ana Ysabel Rioja

USF Tampa Graduate Theses and Dissertations

Tendons, essential tissues that connect muscles to bones, are susceptible to rupture/degeneration due to their continuous use for enabling movement. Often surgical intervention is required to repair the tendon; relieving the pain and fixing the limited mobility that occurs from the damage. Unfortunately, post-surgery immobilization techniques required to restore tendon properties frequently lead to scar formation and reduced tendon range of motion. Our ultimate goal is to create an optimal tendon prosthetic that can stabilize the damaged muscle-bone connection and then be remodeled by resident cells from the surrounding tissues over time to ensure long-term function. To achieve this, we …

Experimental And Numerical Investigation Of An Electrospray Rf Ion Funnel, Eric Miguel Tridas

USF Tampa Graduate Theses and Dissertations

Using experimental techniques along with computational fluid dynamics and electrodynamic simulations the performance of the first of three focusing elements in an electrospray macromolecular patterning system was assessed. The performance of this element, the ion funnel, was analyzed by varying the parameters and electric field applied to the system including electrospray emitter to atmosphere-vacuum interface capillary distance, temperature of the desolvating heater, injection rate of solution and the voltage applied to the jet disruption element. Results indicated that processes involved in injecting larger droplets into the chamber resulted in a less effective transmission of the ions through the funnel. Droplet …

Shelf-Scale Mapping Of Fish Distribution Using Active And Passive Acoustics, Carrie Christy Wall

USF Tampa Graduate Theses and Dissertations

Fish sound production has been associated with courtship and spawning behavior. Acoustic recordings of fish sounds can be used to identify distribution and behavior. Passive acoustic monitoring (PAM) can record large amounts of acoustic data in a specific area for days to years. These data can be collected in remote locations under potentially unsafe seas throughout a 24-hour period providing datasets unattainable using observer-based methods. However, the instruments must withstand the caustic ocean environment and be retrieved to obtain the recorded data. This can prove difficult due to the risk of PAMs being lost, stolen or damaged, especially in highly …

Something Is Askew In Florida's Water: Arguing For A Better Descriptive Statistic For Positively Skewed Water-Quality Data, Amie October West

USF Tampa Graduate Theses and Dissertations

ABSTRACT

It may be of no surprise that water quality data is right-skewed, but what appears to be overlooked by some is that the arithmetic mean and standard deviation most often fail as measures of central tendency in skewed data. When using the arithmetic mean and arithmetic standard deviation with nutrient data, one standard deviation about the arithmetic mean can capture nearly all of the data and extend into negative values. Representing nutrient data this way can be misleading to viewers who are using the statistics, and making assumptions, to understand the characteristics of those waters. Through an in-depth statistical …

Asymmetric Intra- And Intermolecular Cyclopropanation By Co(Ii)- Based Metalloradical Catalysis, Xue Xu

USF Tampa Graduate Theses and Dissertations

Metal-catalyzed cyclopropanation of olefins with diazo reagents has attracted research interest because of its fundamental and practical importance. The resulting cyclopropyl units are recurrent motifs in biologically important molecules and can serve as versatile precursors in organic synthesis. Since they were first introduced in 2004, Co(II) complexes of D₂-symmetric chiral amidoporphyrins [Co(D₂-Por*)] have emerged as a new class of catalysts for asymmetric cyclopropanation. These metalloradical catalysts have been shown to be highly effective for asymmetric intermolecular cyclopropanation of a broad scope of substrates with different classes of carbene sources, particularly including electron-deficient olefins and acceptor/acceptor-substituted …

Laboratory Schools Annual Report, 2011-2012, Laboratory Schools, Illinois State University

Annual Reports – Laboratory Schools

Illinois State University Laboratory Schools annual report

The Detection Of Abnormal Events In Activities Of Daily Living Using A Kinect Sensor, Laurence Da Luz

Theses : Honours

The growing elderly population presents a challenge on the resources of carers and assisted living communities. This has led to various projects in remote automated home monitoring in order to keep the elderly in their own home environment longer. These have the promise of alleviating the strain on support services, and the benefits of keeping people in their existing familiar community environment. Such monitoring typically involves a myriad of sensors attached to the environment and person, so as to acquire rich enough data to determine the actions of the person being monitored. In this research, an algorithm based around the …

Biology I Lab, Todd Schraw

Syllabus Repository

No abstract provided.

Medical Terminology, Steelman Library, Todd Schraw Dr.

Syllabus Repository

No abstract provided.

Identifying And Localizing Intracellular Nanoparticles Using Raman Spectroscopy, Jennifer Dorney, Franck Bonnier, Amaya Garcia, Alan Casey, Gordon Chambers, Hugh Byrne

Articles

Raman microscopy is employed to spectroscopically image biological cells previously exposed to fluorescently labelled polystyrene nanoparticles and, in combination with K-means clustering and Principal Component Analysis (PCA), is demonstrated to be capable of localising the nanoparticles and identifying the subcellular environment based on the molecular spectroscopic signatures. The neutral nanoparticles of 50 nm or 100 nm, as characterised by dynamic light scattering, are shown to be non-toxic to a human lung adenocarcinoma cell-line (A549), according to a range of cytotoxicity assays including Neutral Red, Alamar Blue, Coomassie Blue and (3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT). Confocal fluorescence microscopy identifies intracellular fluorescence due to …