Digital Commons Network^™

The Child Maltreatment Survivor's Description Of The Process Of Becoming A Parent: A Grounded Theory Study, Roseanne E. Roberts

The Qualitative Report

This research study was conducted to investigate the processes experienced by survivors of child maltreatment as they became parents. The study utilized a grounded theory approach to answer the research question, “How do survivors of child maltreatment experience the process of becoming a parent?” The goal of the study was to generate a theory about the actions, interactions, and emotions experienced by survivors of child maltreatment as they became parents. It was the intention of this study to enhance the knowledge base of the psychological profession. The research problem, the methodology chosen to answer the research question, and the findings …

Global Summation Of Radial Frequency Patterns And The Effect Of Sudden Onset Glare On Shape Discrimination, Edgar Ekure

Student Theses, Dissertations and Capstones

ABSTRACT Global summation of radial frequency patterns and the effect of sudden onset glare on shape discrimination The purpose of this study was to provide evidence of global pooling around the circumference of the Radial frequency (RF) pattern, and to study the effect of sudden onset glare on shape discrimination. The RF stimuli were generated by the amplitude modulation of the radius of a circle which deforms them from circularity, while the cross sectional luminance profile was the fourth derivative of Gaussians (D4). The amplitude of the stimuli determines how distinct the pattern is and thus measures the degree of …

Cytokine Production But Lack Of Proliferation In Peripheral Blood Mononuclear Cells From Chronic Chagas' Disease Cardiomyopathy Patients In Response To T. Cruzi Ribosomal P Proteins, Silvia A. Longhi, Augusto Atienza, Graciela Perez Prados, Alcinette Buying, Virginia Balouz, Carlos A. Buscaglia, Radleigh Santos, Laura M. Tasso, Ricardo Bonato, Pablo Chiale, Clemencia Pinilla, Valeria A. Judkowski, Karina A. Gomez

Mathematics Faculty Articles

Background

Trypanosoma cruzi ribosomal P proteins, P2β and P0, induce high levels of antibodies in patients with chronic Chagas' disease Cardiomyopathy (CCC). It is well known that these antibodies alter the beating rate of cardiomyocytes and provoke apoptosis by their interaction with β1-adrenergic and M2-muscarinic cardiac receptors. Based on these findings, we decided to study the cellular immune response to these proteins in CCC patients compared to non-infected individuals.

Methodology/Principal findings

We evaluated proliferation, presence of surface activation markers and cytokine production in peripheral blood mononuclear cells (PBMC) stimulated with P2β, the C-terminal portion of P0 (CP0) proteins and T. …

Fine-Scale Features On The Sea Surface In Sar Satellite Imagery - Part 2: Numerical Modeling, Silvia Matt, A. Fujimura, Alexander Soloviev, S. H. Rhee, R. Romeiser

Marine & Environmental Sciences Faculty Articles

With the advent of the new generation of synthetic aperture radar (SAR) satellites, it has become possible to resolve fine-scale features on the sea surface on the scale of meters. The proper identification of sea surface signatures in SAR imagery can be challenging, since some features may be due to atmospheric distortions (gravity waves, squall lines) or anthropogenic influences (slicks), and may not be related to dynamic processes in the upper ocean. In order to improve our understanding of the nature of fine-scale features on the sea surface and their signature in SAR, we have conducted high-resolution numerical simulations combining …

Book Review - Abominable Science!: Origins Of The Yeti, Nessie, And Other Famous Cryptids, J. Matthew Hoch

Marine & Environmental Sciences Faculty Articles

No abstract provided.

Looking Through A Different Window: Chronic Disease Management In Public Health. Application Of Symbolic Interactionism And Institutional Ethnography, Yuliya Knyahnytska

The Qualitative Report

Chronic diseases are defined as illnesses that are prolonged, do not resolve spontaneously and are rarely cured. They constitute 46% of the global burden of diseases and are responsible for 59% of deaths in Canada, tallying billions of dollars in annual medical expenditures. Regardless of the variety of available treatments, a vast majority of patients with chronic conditions report they do not receive the care they need or expect. The efficacy of chronic disease management (CDM) has been proven effective for the general population; the focus of this paper, however, is around populations who are less responsive to mainstream behaviour …

Chinese Biology Teaching Assistants' Perception Of Their English Proficiency: An Exploratory Case Study, Xuan Jiang

The Qualitative Report

Many Chinese graduate students are teaching assistants (TAs) in mathematics, science and engineering departments in the U.S. universities. TAs’ English proficiency has been a subject of concern or even criticism for years in the U.S. However, only one research has been found around international TAs’ English proficiency per discipline. No research has been found about Chinese TAs’ English proficiency. None has been done on Chinese TA’s perception of their English proficiency in biology. With this gap noticed, I deployed interviews to explore what the three biology TAs perceived as to their English proficiency. The study found that their perception was …

A Thermal Window For Yawning In Humans: Yawning As A Brain Cooling Mechanism, Jorg J. M. Massen, Kim Dusch, Omar T. Eldakar, Andrew C. Gallup

Biology Faculty Articles

The thermoregulatory theory of yawning posits that yawns function to cool the brain in part due to counter-current heat exchange with the deep inhalation of ambient air. Consequently, yawning should be constrained to an optimal thermal zone or range of temperature, i.e., a thermal window, in which we should expect a lower frequency at extreme temperatures. Previous research shows that yawn frequency diminishes as ambient temperatures rise and approach body temperature, but a lower bound to the thermal window has not been demonstrated. To test this, a total of 120 pedestrians were sampled for susceptibly to self-reported yawn contagion during …

Does Size Matter In The Field?: Female Police Bodies In Online Television, Carmen M. Cusack

The Qualitative Report

The purpose of this study is to investigate how female officers’ body sizes are depicted on the TV show, “Police Women of Broward County.” Little literature examines the media’s depiction of bodies belonging to women who are involved in traditionally masculine professions. However, feminist and masculinist literature, along with biophysical literature, tends to suggest that women are smaller and weaker than men or are perceived that way in society. It stands to reason that media may portray female officers this way or portray women attempting to overcome this stigma personally and professionally to appeal to viewers or as a reflection …

Prokaryotic Diversity Of The Wastewater Outfalls, Reefs, And Inlets Of Broward County, Alexandra Mandina Campbell

HCNSO Student Theses and Dissertations

We applied culture-independent, next-generation sequencing (NGS) high throughput pyrosequencing, to characterize the microbial communities associated with near shore seawater in Broward County, FL. These waters flow over coral reef communities, which are part of the Florida reef tract, and are close to shore where bathers frequent. Through a close partnership with the NOAA FACE program, 38 total seawater samples were taken from 6 distinct locales -the Port Everglades and Hillsboro Inlets, Hollywood and Broward wastewater outfalls, and the associated reef waters-over the course of one year. Tagged 16S rRNA amplicons were used to generate longitudinal taxonomic profiles of marine bacteria …

The Detection Of Amazonian Manatees (Trichechus Inunguis) Using Side-Scan Sonar And The Effect Of Oil Activities On Their Habitats In Eastern Ecuador, Caitlin E. Brice

HCNSO Student Theses and Dissertations

Substantial hunting pressure and habitat destruction caused by oil extraction has critically endangered the Amazonian manatee in Ecuador. The current population status is unknown because an effective method to observe them in the wild has yet to be developed. This study explored whether the Amazonian manatee persists or has been extirpated in the eastern Ecuadorian Amazon utilizing side-scan sonar to increase odds of detection. Spatial differences in probability of detection were quantified if manatees were observed. The level of chemical contamination was determined and compared spatially and temporally against historical data. Data were collected using opportunistic transect surveys and grab …

Conch Population Demographics And Habitat Association Near Port Everglades Inlet, Florida, Charlotte A. Berry

HCNSO Student Theses and Dissertations

The queen conch (Strombus gigas) is a large marine gastropod found throughout the tropical western Atlantic including Florida. Overfishing and habitat loss have led to Caribbean-wide population declines requiring regional protections. On Florida’s east coast, aggregations of conch were previously reported just south of a major shipping port near Ft. Lauderdale, unusually high latitude for the species. This study was designed to investigate the spatial extent and population demographics of the Ft. Lauderdale conch. In summer 2012, broad-scale population surveys were conducted to document benthic cover and conch distribution and size data along 72 random transects stratified across …

Behavioral Criteria For The Diagnosis Of Domoic Acid Toxicosis In Zalophus Californianus, Christiana Wittmaack

HCNSO Student Theses and Dissertations

Introduction

California sea lion (Zalophus californianus) health is severely compromised by domoic acid toxicosis, which occurs in high levels during harmful algal blooms of Pseudonitzschia australis along the coast of California. Current diagnostic protocols are often inconclusive due to a 2-48 hour window of detectability within the urinary, circulatory, and gastric systems (Cook, et al. 2011 and Monte, Pers Comm, 2012). Past studies suggest that Z. californianus, with domoic acid toxicosis, commonly display abnormal behaviors (Goldstein, et al. 2008). However, many of these abnormal behaviors are also associated with other diagnoses and are therefore unreliable as diagnostic indicators. …

Progress Of Mesenchymal Stem Cell Therapy For Neural And Retinal Diseases, Tsz Kin Ng, Veronica R. Fortino, Daniel Pelaez, Herman S. Cheung

Biology Faculty Articles

Complex circuitry and limited regenerative power make central nervous system (CNS) disorders the most challenging and difficult for functional repair. With elusive disease mechanisms, traditional surgical and medical interventions merely slow down the progression of the neurodegenerative diseases. However, the number of neurons still diminishes in many patients. Recently, stem cell therapy has been proposed as a viable option. Mesenchymal stem cells (MSCs), a widely-studied human adult stem cell population, have been discovered for more than 20 years. MSCs have been found all over the body and can be conveniently obtained from different accessible tissues: bone marrow, blood, and adipose …

Genome-Wide Mycobacterium Tuberculosis Variation (Gmtv) Database: A New Tool For Integrating Sequence Variations And Epidemiology, Ekaterina N. Chernyaeva, Marina V. Shulgina, Mikhail Rotkevich, Pavel Dobrynin, Serguei Simonov, Egor A. Shitikov, Dmitry S. Ischenko, Irina Y. Karpova, Elena S. Kostryukova, Elena N. Ilina, Vadim M. Govorun, Vyacheslav Y. Zhuravlev, Olga A. Manicheva, Peter K. Yablonsky, Yulia D. Isaeva, Elena Y. Nosova, Igor V. Mokrousov, Anna A. Vyazovaya, Olga V. Narvskaya, Alla L. Lapidus, Stephen J. O'Brien

Biology Faculty Articles

Background

Tuberculosis (TB) poses a worldwide threat due to advancing multidrug-resistant strains and deadly co-infections with Human immunodeficiency virus. Today large amounts of Mycobacterium tuberculosis whole genome sequencing data are being assessed broadly and yet there exists no comprehensive online resource that connects M. tuberculosis genome variants with geographic origin, with drug resistance or with clinical outcome.

Description

Here we describe a broadly inclusive unifying Genome-wide Mycobacterium tuberculosis Variation (GMTV) database, (http://mtb.dobzhanskycenter.org) that catalogues genome variations of M. tuberculosis strains collected across Russia. GMTV contains a broad spectrum of data derived from different sources and related to M. …

The Current Volume 24: Issue 28, Nova Southeastern University

Student Newspapers

No abstract provided.

Sequence-Based Analysis Of Structural Organization And Composition Of The Cultivated Sunflower (Helianthus Annuus L.) Genome, Navdeep Gill, Matteo Buti, Nolan Kane, Arnaud Bellec, Nicolas Helmstetter, Hélène Berges, Loren Rieseberg

Biology Faculty Articles

Sunflower is an important oilseed crop, as well as a model system for evolutionary studies, but its 3.6 gigabase genome has proven difficult to assemble, in part because of the high repeat content of its genome. Here we report on the sequencing, assembly, and analyses of 96 randomly chosen BACs from sunflower to provide additional information on the repeat content of the sunflower genome, assess how repetitive elements in the sunflower genome are organized relative to genes, and compare the genomic distribution of these repeats to that found in other food crops and model species. We also examine the expression …

Selective Inhibition Of Angiotensin Receptor Signaling Through Erk1/2 Pathway By A Novel Peptide, Jun Liu, Gina L. Yosten, Hong Ji, Dan Zhang, Wei Zheng, Robert C. Speth, Willis K. Samson, Kathryn Sandberg

HPD Articles

A seven-amino acid peptide (PEP7) is encoded within a short open reading frame within exon 2 (E2) in the 5'-leader sequence (5'LS) upstream of the rat ANG 1a-receptor (rAT1aR) mRNA. A chemically synthesized PEP7 markedly inhibited ANG II-induced Erk1/2 activation in cell culture by 62% compared with a scrambled PEP7 (sPEP7) [pErk1/2/Erk1/2 (AU): ANG II, 1.000 ± 0.0, ANG II+PEP7, 0.3812 ± 0.086, ANG II+sPEP7, 1.069 ± 0.18; n = 3]. Under these same conditions, PEP7 had no effect on ANG II-stimulated inositol-trisphosphate production. PEP7 also had no effect on epidermal growth factor- and phorbol methyl ester-induced Erk1/2 activation, suggesting …

Ecology Of The Oceanic Rim: Pelagic Eels As Key Ecosystem Components, Jennifer N. Feagans-Bartow, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

Although 92% of the total volume of the world’s oceans occurs below a depth of 200 m, our understanding of deep-sea food webs lags far behind that of continental shelves. In particular, little is known about the exchange of biomass at the interface of continental margins and deep-sea ecosystems. Recent studies suggest that the transport of organic matter from continental shelves may influence deep-sea ecosystems more than previously thought. Here, we present results of a pelagic nekton survey along the southern slope of Georges Bank, NW Atlantic, a transition area between coastal and deep-sea environments. Specimens were collected as part …

The Current Volume 24 : Issue 27, Nova Southeastern University

Student Newspapers

No abstract provided.

Stigmatization Experiences Among People Living With Borderline Personality Disorder In Puerto Rico, Eliut Rivera-Segarra, Glendalys Rivera, Robmarie López-Soto, Gladys Crespo-Ramos, Domingo Marqués-Reyes

The Qualitative Report

The experiences of stigmatization among people living with specific Serious Mental Illnesses (SMI), such as Borderline Personality Disorder (BPD) has not been addressed by the scientific literature. In this study we wanted to explore how people living with BPD experience stigmatization. We examine the experiences of 8 people (7 women and 1 man) living and receiving treatment for BPD in Puerto Rico. We used an exploratory qualitative design with semi-structured interviews. To interpret our data, we conducted a thematic analysis. We discuss three categories that focus on one identified theme: the interpersonal dimension of the stigmatization process. These categories are …

Intraspecific Variation In Vertical Habitat Use By Tiger Sharks (Galeocerdo Cuvier) In The Western North Atlantic, Jeremy J. Vaudo, Bradley M. Wetherbee, Guy Harvey, Richard S. Nemeth, Choy Aming, Lucy A. Howey-Jordan, Mahmood S. Shivji

Marine & Environmental Sciences Faculty Articles

Tiger sharks (Galeocerdo cuvier) are a wide ranging, potentially keystone predator species that display a variety of horizontal movement patterns, making use of coastal and pelagic waters. Far less, however, is known about their vertical movements and use of the water column. We used pop-up satellite archival tags with two data sampling rates (high rate and standard rate tags) to investigate the vertical habitat use and diving behavior of tiger sharks tagged on the Puerto Rico–Virgin Islands platform and off Bermuda between 2008 and 2009. Useable data were received from nine of 14 sharks tagged, tracked over a …

Measuring Viability Of The Red-Tide Dinoflagellate Lingulodinium Polyedra Following Treatment With Ultraviolet (Uv) Light, Scott Riley

HCNSO Student Theses and Dissertations

Harmful algae blooms (HABs) have caused millions dollars in annual losses to the aquaculture industry, inhibited beach recreation, and have threatened marine and human health. HABs and red tides can develop suddenly and their frequency, geographic range, and intensity have increased over the past decade. A possible source for spreading and seeding new areas expanding the geographic range of HABs is ballast water. The process of ballast water discharge has been identified as a primary vector for the translocation of non-indigenous species (NIS) and invasive species. National and international efforts are currently underway to address the impact of NIS and …

A Case Report Of Improving Running Biomechanics Through Movement Pattern Training In A Female Competitive Runner, Anya Ellerbroek, Stephanie Hauck

Undergraduate Student Symposium

Running-related musculoskeletal injuries occur with an overall yearly incidence rate between 37 and 65%. Most are lower extremity with 50-75% of all running injuries classified as overuse. These injuries have been linked to faulty running biomechanics such as foot over pronation, and excessive hip adduction and internal rotation. Therapists have primarily focused on strengthening the hip muscles to prevent excessive motion. However, little evidence supports the efficacy. This case outlines the use of functional movement pattern training rather than isolated muscle training to improve faulty biomechanics. The participant was a 19 year old female competitive distance runner with a history …

A P450 Metabolism Experiment For Undergraduate Biochemistry Laboratories, Catherine Chiafair

Undergraduate Student Symposium

A laboratory experiment is described to provide students hands-on experience in learning some aspects of microsomal P450-catalyzed metabolism. Undergraduate students in the biochemistry laboratories detect and quantify the metabolites produced from butylated hydroxytoluene by liver microsomes using Gas Chromatography-Mass Spectrometry (GC-MS) techniques. The laboratory provides training to students for handling active microsomes, sample cleanup of biological matrices, extraction of organic metabolites, GC-MS analysis and data interpretation of complex mixtures, and collaborative work.

A Survey Of The Cost-Benefit Analyses Of Uninsurance, Prasanna Marathe

Undergraduate Student Symposium

Health care spending is carving up an increasing share of the US national gross domestic productapproximately 18%- but the absolute number-46 million- and the proportion of uninsured Americans15%- are also on the rise (McConnell, Microeconomics: Principles, Problems, and Policies, 2012). These counterintuitive trends are alarming and cannot be sustained without significant net economic costs. A survey of the cost-benefit analyses of uninsurance reveals that uninsurance has tremendous opportunity costs (ex: foregone economic productivity and higher mortality) and is economically (net) harmful. It also reveals that extending insurance to currently uninsured will be economically (net) beneficial to our nation as a …

A Web Interface For Visual Galaxy Classification, Chau Phung

Undergraduate Student Symposium

Galaxies can have a variety of shapes. These morphologies range from disk-dominated to elliptical and irregular appearances. Understanding galaxy morphology is crucial in order to address questions concerning the evolution and formation of galaxies and their dark matter content. However, determining galaxy morphology is a difficult task. While galaxies can be classified using automatic algorithms, the human classification by eye is more sensitive to fine structures such as spiral arms and galaxy interaction features. Unfortunately, galaxy catalogs are very big, making it a time consuming process to classify thousands of galaxies. In order to expedite this process, we developed a …

An Exclusive Look At Cordell Aikman, Tania Aikman

Undergraduate Student Symposium

“An Exclusive Look at Cordell Aikman” is a short documentary film about a brilliant girl (Cordell Aikman) who can do anything she puts her mind to, including gymnastics and acting. She is already an actress with a very impressive resume at the age of 7. The film is directed by Tania Aikman. Other crew members include Ashley Fletcher, Sharon Copeland, and Yesenia Reyes.

An Incompatible Romance, Grace Ducanis

Undergraduate Student Symposium

This presentation examines the heroine and hero of Jane Austen’s novel Northanger Abbey, exposing their inequality in temperament, intelligence, and discernment, while questioning the true motivations for their attachment. Catherine Morland and Henry Tilney are not separated by wealth, class, or other social expectations, but by their critically dissimilar personalities. Although Catherine is inferior to Tilney in every sense, the novel promotes the couple’s romance and marriage. Tilney’s affection does not stem from his acceptance of Catherine as an equal, but from his perception of her affection for him. This paper explores the polarity of the two characters in light …

Analysis By Gcms Of Flavone Isomers In Pancreatic Cancer Cells, Daniela Fernandez

Undergraduate Student Symposium

Flavone A and B were found to be cytotoxic in pancreatic and colon cancers. Both work in triggering cell apoptosis, although the mechanism and relationship between structure and function are unknown. They are similar in structure, only differing in the location of a hydroxyl and methoxyl group. Flavone B is more planar and lipophilic and, in contrast to Flavone A, has been found to selectively induce apoptosis in less differentiated cancer cells. In this study, the goal was to trace flavone uptake by pancreatic cancer cells and its dispersion inside to determine whether apoptosis is caused in the nucleus or …