Digital Commons Network^™

A Revision Of The Genera Of Charitometridae With Abruptly Expanded Genital Pinnules, Alois Romanowski

HCNSO Student Theses and Dissertations

Feather star (Echinodermata: Crinoidea: Comatulida) family Charitometridae has not been revised since 1950. Molecular analysis, new specimens of existing species, and the discovery of a new species has revealed the need for a generic-level revision of those genera that exhibit abruptly expanded genital pinnules. A morphological study was conducted using 57 specimens representing 10 species of the Charitometridae. The genus Poecilometra is redescribed, and two species formerly placed in Strotometra have been moved to the genus based primarily on possession of pedunculate genital pinnules and a wide flange on the first pinnular of the proximal pinnules. A new species was …

Thermal Preferences And Critical Temperature Regimes Of The Western North Atlantic Invasive Lionfish Complex (Pterois Spp.), Benjamin Barker

HCNSO Student Theses and Dissertations

Temperature preference, behavioral tolerance, and physiological tolerances were determined for locally captured, invasive juvenile lionfish at four different acclimation temperatures (13°C, 20°C, 25 °C and 32°C). Temperature preferences and avoidance temperatures were evaluated using an automated shuttlebox system that presents subject-driven temperature stimuli to subjects, who control the temperature with their movement throughout the tank for 12 hours. Subjects are tracked by a computer system, with data output approximately every second. Acute preference was calculated from the archived data as the mean temperature that the fish occupied during the first two hours of dynamic experimentation. Acute preference measurements were used …

Modeling Of Epizootics On Four Genera Of Arabian Gulf Corals, John Alexander Kluge

HCNSO Student Theses and Dissertations

Coral colonies, from a reef near Abu Dhabi, United Arab Emirates (UAE), were counted and assessed for condition using photo-transects. An epidemic model, used to track how a communicable disease moves through a population, was constructed to help predict the future condition of this coral reef. In situ data from a disease outbreak that occurred in September 2011 provided a baseline for the model. Coral Populations of Porites, Platygyra, Acropora and Dipsastrea were modelled using condition categories that included Healthy, Black Band Disease Infected, Cyanobacteria Infected, Recovered, Recruits or Dead. Results from the modelling indicate that populations of Platygyra and …

Repeated, Long-Distance Migrations By A Philopatric Predator Targeting Highly Contrasting Ecosystems, James S. E. Lea, Bradley M. Wetherbee, Nuno Queiroz, Neil Burnie, Choy Aming, Lara L. Sousa, Gonzalo R. Mucientes, Nicolas E. Humphries, Guy Harvey, David W. Sims, Mahmood S. Shivji

Marine & Environmental Sciences Faculty Articles

Long-distance movements of animals are an important driver of population spatial dynamics and determine the extent of overlap with area-focused human activities, such as fishing. Despite global concerns of declining shark populations, a major limitation in assessments of population trends or spatial management options is the lack of information on their long-term migratory behaviour. For a large marine predator, the tiger shark Galeocerdo cuvier, we show from individuals satellitetracked for multiple years (up to 1101 days) that adult males undertake annually repeated, roundtrip migrations of over 7,500km in the northwest Atlantic. Notably, these migrations occurred between the highly disparate …

Managers’ Perspectives On The Effects Of Online Grapevine Communication: A Qualitative Inquiry, Pratyush Baerjee, Sweta Singh

The Qualitative Report

The purpose of this study was to understand how modern-day managers perceived their subordinates were reacting to the phenomenon of online grapevine communication in the workplace. A qualitative inductive inquiry drawing upon techniques of grounded theory was conducted to collect and analyze feedback provided by 15 top-level corporate managers from 10 organizations in India. Managers cited several evidences of employees engaging in online grapevine communication and discussed reasons behind such behavior. Some of the key factors behind such behavior of employees were level of internet familiarity, anonymity of the rumor mongers, quicker and wider reach and opportunity for cyber loafing. …

Measuring Pedagogical Content Knowledge Using Multiple Points Of Data, Ann D. Morrison, Kathleen Carroll Luttenegger

The Qualitative Report

Pedagogical content knowledge (PCK) is the intersection of a teacher’s knowledge of content, pedagogy, and of the context of the learning situation, including her students. Many different methods have been used by researchers to study PCK. We propose that PCK cannot be measured through one approach. Rather, it is more accurately measured by triangulating data gathered through observation of instructional events, teacher interviews, and assessments of content knowledge. This is illustrated through a case study of Maria, a paraeducator leading small group reading intervention lessons in a kindergarten classroom over a period of 10 weeks.

Modeling Of Humoral Immune Response To Repeated Influenza A Virus Infections, Abbiana Arenas, Safiyah Muhammad, Ly Nguyen, Samita Andreansky, Evan Haskell

Mathematics Faculty Proceedings, Presentations, Speeches, Lectures

Seasonal infections by Influenza A virus (IAV) causes hundreds of thousands of deaths worldwide each year, with most individuals being infected multiple times throughout their lifetimes. The relative impact of the components of the host immune system in controlling the severity and duration of repeated challenges from an IAV infection remains unclear. In particular, the differential contribution of the humoral immune response in primary and secondary challenges from IAV are relatively little explored. We develop a parsimonious mathematical model of the humoral immune response to IAV infection with biologically meaningful and identifiable parameters. We show the relative sensitivity of the …

An International Assessment Of Mangrove Management: Incorporation In Integrated Coastal Zone Management, Haille N. Carter, Steffen W. Schmidt, Amy Hirons

Marine & Environmental Sciences Faculty Articles

Due to increasing recognition of the benefits provided by mangrove ecosystems, protection policies have emerged under both wetland and forestry programs. However, little consistency remains among these programs and inadequate coordination exists among sectors of government. With approximately 123 countries containing mangroves, the need for global management of these ecosystems is crucial to sustain the industries (i.e., fisheries, timber, and tourism) and coastal communities that mangroves support and protect. To determine the most effective form of mangrove management, this review examines management guidelines, particularly those associated with Integrated Coastal Zone Management (ICZM). Five case studies were reviewed to further explore …

An Examination Of Service Level Agreement Attributes That Influence Cloud Computing Adoption, Howard Gregory Hamilton

CCAC Theses and Dissertations

Cloud computing is perceived as the technological innovation that will transform future investments in information technology. As cloud services become more ubiquitous, public and private enterprises still grapple with concerns about cloud computing. One such concern is about service level agreements (SLAs) and their appropriateness.

While the benefits of using cloud services are well defined, the debate about the challenges that may inhibit the seamless adoption of these services still continues. SLAs are seen as an instrument to help foster adoption. However, cloud computing SLAs are alleged to be ineffective, meaningless, and costly to administer. This could impact widespread acceptance …

Service Quality And Perceived Value Of Cloud Computing-Based Service Encounters: Evaluation Of Instructor Perceived Service Quality In Higher Education In Texas, Eges Egedigwe

CCAC Theses and Dissertations

Cloud computing based technology is becoming increasingly popular as a way to deliver quality education to community colleges, universities and other organizations. At the same time, compared with other industries, colleges have been slow on implementing and sustaining cloud computing services on an institutional level because of budget constraints facing many large community colleges, in addition to other obstacles. Faced with this challenge, key stakeholders are increasingly realizing the need to focus on service quality as a measure to improve their competitive position in today's highly competitive environment. Considering the amount of study done with cloud computing in education, very …

Modeling The Geographic Spread Of Rabies In China, Jing Chen, Lan Zou, Shigui Ruan

Mathematics Faculty Articles

Abstract

In order to investigate how the movement of dogs affects the geographically inter-provincial spread of rabies in Mainland China, we propose a multi-patch model to describe the transmission dynamics of rabies between dogs and humans, in which each province is regarded as a patch. In each patch the submodel consists of susceptible, exposed, infectious, and vaccinated subpopulations of both dogs and humans and describes the spread of rabies among dogs and from infectious dogs to humans. The existence of the disease-free equilibrium is discussed, the basic reproduction number is calculated, and the effect of moving rates of dogs between …

Antigen Discovery For The Identification Of Vaccine Candidates And Biomarkers Using A T Cell Driven Approach In Combination With Positional Scanning Peptide Libraries, Valeria A. Judkowski, Radleigh Santos, Gonzalo R. Acevedo, Marc Giulianotti, Jon R. Appel, Silvia A. Longhi, Karina A. Gomez, Clemencia Pinilla

Mathematics Faculty Articles

The prevention and treatment of infectious diseases is highly dependent on the availability of reliable diagnostic tests and protective or therapeutic vaccines. There also exists an urgent need to develop reliable biomarkers to monitor treatment success and to predict disease progression from asymptomatic to symptomatic disease in several disease scenarios. The elucidation of the disease-relevant antigens that elicit the protective immune responses is critical and required for the development of biomarkers, diagnostics, and vaccines. However; one of the main obstacles to the study of antigen specificity in human T cells is their low frequency in PBMC samples. To overcome this …

Dna Analysis Of Surfactant Associated Bacteria In The Sea Surface Microlayer In Application To Satellite Remote Sensing Techniques: Case Studies In The Straits Of Florida And The Gulf Of Mexico, Bryan Hamilton

HCNSO Student Theses and Dissertations

Several genera of bacteria residing in the sea surface microlayer and in the near-surface layer of the ocean have been found to be involved in the production and decay of surfactants. Under low wind speed conditions, surfactants can suppress short gravity capillary waves at the sea surface and form natural sea slicks. These features can be observed with both airborne and satellite-based synthetic aperture radar (SAR). Using a new microlayer sampling method, a series of experiments have been conducted in the Straits of Florida and the Gulf of Mexico in 2013 to establish a connection between the presence of surfactant-associated …

Juxtaposition: The Coexistence Of Traditional Navajo And Standards Based Curricula, Daniel R. Conn

The Qualitative Report

Northridge Elementary, a small public school serving almost entirely Navajo students, was recently labeled with a failing grade from the New Mexico Department of Education. This study explores what this label reveals and what it conceals. Using educational connoisseurship and criticism as the method of inquiry, this study considers how the label interacts with the structural, intentional, curricular, pedagogical, and evaluative dimensions within the school. As offered in the thematic aspect of the analysis, the label overgeneralizes realities of Northridge Elementary and is hindering rather the benefiting students.

Adcp Mooring System On The Southeast Florida Shelf, Alexander Soloviev, Cayla Whitney Dean, Robert H. Weisberg, Mark E. Luther, Jon Wood

Marine & Environmental Sciences Faculty Reports

No abstract provided.

Acute And Chronic Effects Of Large-Vessel Anchoring On Coral Reef Communities Inside A Designated Commercial Anchorage, Lauren Waters

HCNSO Student Theses and Dissertations

Coral reefs provide economic and environmental services to millions of people as areas for recreation, sources of food, jobs, and shoreline protection; and are now under threat from multiple stresses (NOAA 2002). Anthropogenic impact from acute physical events such as commercial vessel grounding and anchor drags have been well documented throughout the world and southeast Florida. However little data exist on the chronic effects of large commercial vessels anchoring on reef resources. The Port Miami commercial anchorage was designated circa 1927 and was delineated over approximately 700 acres of reef resources. Anchorage use, benthic resources, and substrate composition were surveyed …

The Importance Of A Pictorial Medical History In Assisting Medical Diagnosis Of Individuals With Intellectual Disabilities: A Telemedicine Approach, Grace Bonanno

CCAC Theses and Dissertations

When face-to-face physical medical exams are not possible, virtual physical exams, in the form of a pictorial medical exam/history, can be substituted, and telemedicine can be the means to deliver these virtual exams. The goal of this work was to determine if presence in the form of a visual and/or pictorial medical history can be of benefit to clinicians in the diagnosis of medical conditions of individuals with developmental disabilities (DDs) and/or intellectual disabilities (IDs), in particular those who cannot, because of their cognitive and/or physical disabilities, verbally relate their illness to a clinician. Virtual exams can also be useful …

Efficient Variations Of The Quality Threshold Clustering Algorithm, Frank Loforte Jr.

CCAC Theses and Dissertations

Clustering gene expression data such that the diameters of the clusters formed are no greater than a specified threshold prompted the development of the Quality Threshold Clustering (QTC) algorithm. It iteratively forms clusters of non-increasing size until all points are clustered; the largest cluster is always selected first. The QTC algorithm applies in many other domains that require a similar quality guarantee based on cluster diameter. The worst-case complexity of the original QTC algorithm is (n5). Since practical applications often involve large datasets, researchers called for more efficient versions of the QTC algorithm.

This dissertation aimed to develop …

Investigating Categorization Preferences For Online Dating Sites, Scott Morrissette

CCAC Theses and Dissertations

The purpose of the study was to determine whether a three-category (3C) system for classifying profiles on online dating sites provides advantages over a two-category (2C) system as decision makers evaluate a long list of profiles. Two groups of single heterosexual or bisexual women ages 20 to 30 reviewed a list of 60 male profiles on simulated online dating sites to choose which profiled man they would most like to learn more about. One group (n = 53) evaluated the profiles using a 2C system; the other group (n = 56) used a 3C system. After making their choice, women …

A Dynamic Behavioral Biometric Approach To Authenticate Users Employing Their Fingers To Interact With Touchscreen Devices, Arturo Ponce

CCAC Theses and Dissertations

The use of mobile devices has extended to all areas of human life and has changed the way people work and socialize. Mobile devices are susceptible to getting lost, stolen, or compromised. Several approaches have been adopted to protect the information stored on these devices. One of these approaches is user authentication. The two most popular methods of user authentication are knowledge based and token based methods but they present different kinds of problems.

Biometric authentication methods have emerged in recent years as a way to deal with these problems. They use an individual’s unique characteristics for identification and have …

Locating Potential Aspect Interference Using Clustering Analysis, Brian Todd Bennett

CCAC Theses and Dissertations

Software design continues to evolve from the structured programming paradigm of the 1970s and 1980s and the object-oriented programming (OOP) paradigm of the 1980s and 1990s. The functional decomposition design methodology used in these paradigms reduced the prominence of non-functional requirements, which resulted in scattered and tangled code to address non-functional elements. Aspect-oriented programming (AOP) allowed the removal of crosscutting concerns scattered throughout class code into single modules known as aspects. Aspectization resulted in increased modularity in class code, but introduced new types of problems that did not exist in OOP. One such problem was aspect interference, in which aspects …

An Information Privacy Examination Of The Practices Of Pharmaceutical Companies Regarding Use Of Information Collected Through Their Websites, Shonda Dellena Brown

CCAC Theses and Dissertations

Consumers have begun to take a more proactive approach to their healthcare by accessing pharmaceutical companies Websites to obtain health and drug information, support groups, rebates, coupons, as well as free drug trials. In exchange for these benefits, companies require consumers to voluntarily disclose information. However, research has shown that consumers continue to be concerned about how their information is managed, used, and distributed by companies, especially if accessed via the Web. To date, there has been limited empirical research to examine the actual online practices of companies when it comes to privacy, especially those of pharmaceutical companies. Using Delphi …

Investigating Roles Of Information Security Strategy, Roger V. Seeholzer

CCAC Theses and Dissertations

A fundamental understanding of the complexities comprising an information security strategy (ISS) in an organization is lacking. Most ISS implementations in government organizations equate anti-virus or installing a firewall to that of an ISS. While use of hardware and software forms a good defense; neither comprises the essence of an ISS. The ISS best integrates with business and information system strategies from the start, forming and shaping the direction of overall strategy synergistically within large government organizations. The researcher used grounded theory and investigated what a large government organization’s choices were with the differing roles an information security professional (ISP) …

An Empirical Development Of Critical Value Factors For System Quality And Information Quality In Business Intelligence Systems Implementations, Paul Dooley

CCAC Theses and Dissertations

Business intelligence (BI) systems have been widely recognized as a leading technology for many years. However, despite the high priority and importance placed on BI, there has been a significant lack of BI system implementation (BISI) success. BI systems are not considered to be conventional information systems (IS) and often rely on the integration of a complex information infrastructure. Consequently, the degree of information quality (IQ) and system quality (SQ) have not met expectations for BISI success.

This study was designed to determine how an organization may gain benefits in the context of BISI by uncovering the antecedents and critical …

Toward A Buddhist Theory Of Structural Peace: Lessons From Myanmar In Transition, Tatsushi Arai

Peace and Conflict Studies

This essay analyzes the result of in-depth interviews that the author conducted with Burmese Buddhist leaders, with a view toward building Buddhist theories of social conflict, reconciliation, and structural peace. Findings include their shared understanding of the deeply spiritual, inner-directed nature of conflict and reconciliation, and their highly divergent, contested understandings of the structural roots of human suffering in today’s globalized and interconnected world. To meet these structural challenges, this essay introduces the concept of structural awareness, which it defines as educated, enlightened consciousness to appreciate and act responsibly on the complex chains of causal relations in which well-intended action …

A Constructivist Study Of Graduate Assistants' Healthcare Experiences In A Research University, Uttam Gaulee, Brenda Lee, Douglas Whitaker, Natalie Khoury Ridgewell, Mirka Koro-Ljungberg, Dayna M. Watson, Colleen Butcher

The Qualitative Report

This constructivist study explores 16 graduate assistants’ (GAs) healthcare experiences and uses grounded theory to create a model of graduate assistants’ experiences with university-provided healthcare in a large research university. The model is composed of four broad components: (a) systems; (b) access, care and coverage; (c) knowledge, quality and cost; and (d) self. Graduate assistants’ needs and expectations constantly negotiate various systems in the model. Expanding upon the limited research regarding graduate student healthcare, this study provides implications for higher education administrators and policy makers. Based on our study findings we argue that it is not sufficient for university administrations …

Dissipation Rate Of Turbulent Kinetic Energy In Diel Vertical Migrations: Comparison Of Ansys Fluent Model To Measurements, Cayla Whitney Dean, Alexander Soloviev, Amy Hirons, Tamara M. Frank, J. D. Wood

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Recent studies suggest that diel vertical migrations of zooplankton may have an impact on ocean mixing, though details are not completely clear. A strong sound scattering layer of zooplankton undergoing diel vertical migrations was observed in Saanich Inlet, British Colombia, Canada by Kunze et al. (2006). In this study, a shipboard 200- kHz echosounder was used to track vertical motion of the sound scattering layer, and microstructure profiles were collected to observe turbulence. An increase of dissipation rate of turbulent kinetic energy by four to five orders of magnitude was measured during diel vertical migrations of zooplankton in one case …

The Current Volume 25 : Issue 28, Nova Southeastern University

Student Newspapers

No abstract provided.

Dynamic Regulation Of Toxic Engineered Bacteria Prevents Learning In The Model Nematode Caenorhabditis Elegans, Olena Bracho, Cyril Manchery

Undergraduate Student Symposium

Infections due to parasitic nematodes result in nearly 125,000 deaths annually. Strikingly, this rate remains nearly unchanged in the past 50 years likely owing to the fact that treatment options are either inefficient or inaccessible. Prior to infecting humans, most parasitic nematodes begin as larvae where they feed nearly exclusively on bacteria. This unique property may offer an opportunity to develop new biological control agents with the use of synthetic biology. Recently, we have engineered a bacterium, consisting of an attraction module and toxin module that lures in and kills nematodes, respectively, using the principles of synthetic biology to act …

Nova Southeastern University's Participation In Many Labs 3: Evaluating Participant Pool Characteristics Across The Semester Via Replication, Guy Merus, Andrea Moran, Boglarka Varga, Stephanie Ponce, Idania Elizabeth Cater, Alexis Murphy

Undergraduate Student Symposium

A crowdsourced project from 23 university participant pools, including NSU (total N = 2,696; NSU N = 131), examined variation in 10 well known psychological findings and 8 individual difference measures over the course of the academic semester. Undergraduate psychology participant pools serve as a major resource for behavioral research studies. Many researchers have hypothesized that the traits and attentiveness of student research participants vary across an academic term (e.g., students who participate later in the semester may be lower in conscientiousness and higher in openness to experience). However, there is very little systematic evidence regarding the magnitude of such …