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Articles 2461 - 2490 of 5840
Full-Text Articles in Entire DC Network
Studying Medicine With Dyslexia: A Collaborative Autoethnography, Sebastian C.K. Shaw, John L. Anderson, Alec J. Grant
Studying Medicine With Dyslexia: A Collaborative Autoethnography, Sebastian C.K. Shaw, John L. Anderson, Alec J. Grant
The Qualitative Report
The topic of this article is the experience of the impact of dyslexia on medical studies, explored using a collaborative autoethnographic methodological approach. The study was prompted by an initial and ongoing full search of the literature, which revealed an absence of autoethnographic research into the experiences of medical students with dyslexia. It has four aims: to provide an in-depth, multi-layered account of the impact of dyslexia on a UK undergraduate medical student; to help other students and academic support staff in similar situations; to outline improvements that could be made to medical and other educational curricula and examination procedures, …
Continuous Dependence And Differentiating Solutions Of A Second Order Boundary Value Problem With Average Value Condition, Samantha A. Major
Continuous Dependence And Differentiating Solutions Of A Second Order Boundary Value Problem With Average Value Condition, Samantha A. Major
Mathematics Colloquium Series
Using a few conditions, continuous dependence, and a result regarding smoothness of initial conditions, we show that derivatives, with respect to each of the boundary data, of solutions to a second order boundary value problem with an average value integral condition solve the associated variational equation with interesting boundary conditions.
Humanization Through Action Research As Methodology, Jeffrey D. Radloff, Cole Joslyn, Brenda Capobianco
Humanization Through Action Research As Methodology, Jeffrey D. Radloff, Cole Joslyn, Brenda Capobianco
The Qualitative Report
The purpose of this action research study was to critically examine the use of action research as a mechanism to enhance graduate students’ development as emerging qualitative researchers. Although action research has been recognized as an effective means of transforming teaching practices, studies examining its use among graduate students learning to become qualitative researchers are lacking. Participants profiled in this study include two graduate students and one teacher educator. The context of the study was a graduate level course on action research where all three participants identified starting points, employed distinct action strategies, engaged in sustained, critical reflection, and developed …
Spatial Population Models With Fitness Based Dispersal, Chris Cosner
Spatial Population Models With Fitness Based Dispersal, Chris Cosner
Mathematics Colloquium Series
Traditional continuous time models in spatial ecology typically describe movement in terms of linear diffusion and advection, which combine with nonlinear population dynamics to produce semi-linear parabolic equations and systems. In environments that are favorable everywhere in the sense that the local population growth rate is always positive, organisms can use linear advection and diffusion to achieve an optimal spatial distribution. (Here optimal means evolutionarily stable.) In regions where there are environmental “sinks” where the local growth rate is negative, it does not seem possible to achieve an optimal distribution via linear dispersal. It is possible for organisms using advection …
Abundance And Diversity Of Deep-Sea Crustaceans Of Bear Seamount, New England Seamount Chain, Valerie Renee Miranda
Abundance And Diversity Of Deep-Sea Crustaceans Of Bear Seamount, New England Seamount Chain, Valerie Renee Miranda
HCNSO Student Theses and Dissertations
Bear Seamount (39° 55’ N; 67° 30’ W) is the westernmost peak of extinct undersea volcanoes in the New England Seamount Chain (Moore et al., 2003). It is located on the continental slope off Georges Bank, and is governed by unique environmental factors and currents that may be unlike those of the other seamounts (Moore et al., 2003). Previous cruises to this seamount have been successful in capturing abundant fishes, cephalopods and invertebrates (Moore et al., 2003; Moore et al., 2004; Moore et al., 2008), but only the distribution patterns of the fishes and cephalopods have been examined, leaving a …
Exploiting Metacognitive Networks Embedded In Narrative Focus Group Interviews Using Nodexl, Divan Jagals, Marthie Sophia Van Der Walt
Exploiting Metacognitive Networks Embedded In Narrative Focus Group Interviews Using Nodexl, Divan Jagals, Marthie Sophia Van Der Walt
The Qualitative Report
Development of metacognitive theory for changing pedagogy remains an essential research activity. A lack of sufficient clear-cut qualitative analysis procedures extracting embedded metacognitive constructs from qualitative data (e.g., narrative focus group interviews) can hinder development of theory. An approach is therefore needed to analyse qualitative metacognitive data exploiting embedded metacognitive constructs for theory development. In an undergraduate fourth-year mathematics education module, two groups of students (Group A: n = 6; Group B: n = 5) participated in a series of focus group interviews. Participants designed and refined mathematics lessons about the concept of place value. We identified metacognitive networks as …
Symmetric Integer Matrices Having Integer Eigenvalues, Lei Cao, Selcuk Koyuncu
Symmetric Integer Matrices Having Integer Eigenvalues, Lei Cao, Selcuk Koyuncu
Mathematics Faculty Articles
We provide characterization of symmetric integer matrices for rank at most 2 that have integer spectrum and give some constructions for such matrices of rank 3. We also make some connection between Hanlon’s conjecture and integer eigenvalue problem.
Improving The Spatial Allocation Of Functional Group Biomasses In Spatially-Explicit Ecosystem Models: Insights From Three Gulf Of Mexico Models, Arnaud Gruss, Elizabeth A. Babcock, Skyler Sagarese, Michael Drexler, David D. Chagaris, Cameron H. Ainsworth, Brad Penta, Sergio Derada, Tracey Sutton
Improving The Spatial Allocation Of Functional Group Biomasses In Spatially-Explicit Ecosystem Models: Insights From Three Gulf Of Mexico Models, Arnaud Gruss, Elizabeth A. Babcock, Skyler Sagarese, Michael Drexler, David D. Chagaris, Cameron H. Ainsworth, Brad Penta, Sergio Derada, Tracey Sutton
Marine & Environmental Sciences Faculty Articles
Spatially-explicit ecosystem models, such as Ecospace, Atlantis, and OSMOSE, are key tools for achieving ecosystem-based fisheries management in the Gulf of Mexico (GOM). In spatially-explicit ecosystem models, trophic interactions strongly depend on the way functional group biomasses are allocated spatially, which conditions patterns of spatial overlap between predators, prey, and competitors. Here, we review realized and ongoing improvements in the spatial allocation of functional group biomasses in Ecospace and OSMOSE models of the West Florida Shelf ("WFS Reef fish Ecospace" and "OSMOSE-WFS") and in the Atlantis model of the GOM ("Atlantis-GOM"). A habitat capacity model, which defines the spatial distribution …
Feralisation Targets Different Genomic Loci To Domestication In The Chicken, M. Johnsson, Eben Gering, P. Willis, S. Lopez, L. Van Dorp, G. Hellenthal, R. Henriksen, U. Friberg, D. Wright
Feralisation Targets Different Genomic Loci To Domestication In The Chicken, M. Johnsson, Eben Gering, P. Willis, S. Lopez, L. Van Dorp, G. Hellenthal, R. Henriksen, U. Friberg, D. Wright
Biology Faculty Articles
Feralisation occurs when a domestic population recolonizes the wild, escaping its previous restricted environment, and has been considered as the reverse of domestication. We have previously shown that Kauai Island's feral chickens are a highly variable and admixed population. Here we map selective sweeps in feral Kauai chickens using whole-genome sequencing. The detected sweeps were mostly unique to feralisation and distinct to those selected for during domestication. To ascribe potential phenotypic functions to these genes we utilize a laboratory-controlled equivalent to the Kauai population—an advanced intercross between Red Junglefowl and domestic layer birds that has been used previously for both …
Modeling And Methods Of Signal Separations With Applications In Spectroscopic Sensing, Yuanchang Sun
Modeling And Methods Of Signal Separations With Applications In Spectroscopic Sensing, Yuanchang Sun
Mathematics Colloquium Series
Spectroscopic sensing is a powerful and a widely used family of techniques for detecting and identifying chemical and biological substances. For example, nuclear magnetic resonance (NMR) relies on the magnetic properties of the atomistic nucleus to determine the molecular structures. Raman spectroscopy (RS) uses laser light scattering and the resulting energy shift of photons to sense the vibrational modes of a sample. In remote sensing, hyperspectral imaging (HSI) makes use of hundreds of contiguous spectral bands to identify nearly invisible objects at subpixel level. Differential optical absorption spectroscopy (DOAS) is based on the light absorption property of matter to identify …
Investigating The Spatial Distribution And Effects Of Nearshore Topography On Acropora Cervicornis Abundance In Southeast Florida, Nicole D'Antonio, David S. Gilliam, Brian K. Walker
Investigating The Spatial Distribution And Effects Of Nearshore Topography On Acropora Cervicornis Abundance In Southeast Florida, Nicole D'Antonio, David S. Gilliam, Brian K. Walker
Marine & Environmental Sciences Faculty Articles
Dense Acropora cervicornis aggregations, or patches, have been documented within nearshore habitats in Southeast Florida (SE FL) despite close proximity to numerous anthropogenic stressors and subjection to frequent natural disturbance events. Limited information has been published concerning the distribution and abundance of A. cervicornis outside of these known dense patches. The first goal of this study was to conduct a spatially extensive and inclusive survey (9.78 km2) to determine whether A. cervicornis distribution in the nearshore habitat of SE FL was spatially uniform or clustered. The second goal was to investigate potential relationships between broad-scale seafloor topography and …
Increasing Shipping Traffic Through The Bering Strait: Challenges Of International Policy In A Rapidly Changing Climate And Managing Impacts To Regional Cetacean Populations, Laura Morse
HCNSO Student Capstones
The Arctic region is experiencing growth in marine traffic as seasonal ice conditions shift to longer periods of open water and vessel improvements that have allowed for transit in heavier ice conditions. Regionally, Russia is improving existing transportation infrastructure to support increased traffic along the Northern Sea Route. As a result of these and other factors, shipping traffic is increasing through the Bering Strait and Bering Sea. Regulating traffic in these areas is more complex than most other areas in US waters given the presence of an international strait subject to international regulation through the International Maritime Organization. The US …
A High Protein Diet Has No Harmful Effects: A One-Year Crossover Study In Resistance-Trained Males, Jose Antonio, Anya Ellerbroek, Tobin A. Silver, Leonel Vargas, Armando Tamayo, Richard Buehn, Corey Peacock
A High Protein Diet Has No Harmful Effects: A One-Year Crossover Study In Resistance-Trained Males, Jose Antonio, Anya Ellerbroek, Tobin A. Silver, Leonel Vargas, Armando Tamayo, Richard Buehn, Corey Peacock
Department of Health and Human Performance Faculty Articles
The purpose of this investigation was to determine the effects of a high protein diet over a one-year period. Fourteen healthy resistance-trained men completed the study (mean ± SD; age yr; height cm; and average years of training yr). In a randomized crossover design, subjects consumed their habitual or normal diet for 2 months and 4 months and alternated that with a higher protein diet (>3 g/kg/d) for 2 months and 4 months. Thus, on average, each subject was on their normal diet for 6 months and a higher protein diet for 6 months. Body composition was assessed via …
The Current Volume 27 : Issue 4, Nova Southeastern University
The Current Volume 27 : Issue 4, Nova Southeastern University
Student Newspapers
No abstract provided.
Quantifying The Toxicity Of 1-Methylnaphthalene To The Shallow-Water Coral, Porites Divaricata, For Use In The Target Lipid Model, Nicholas Turner
Quantifying The Toxicity Of 1-Methylnaphthalene To The Shallow-Water Coral, Porites Divaricata, For Use In The Target Lipid Model, Nicholas Turner
HCNSO Student Theses and Dissertations
The proximity of coral reefs to coastal urban areas and shipping lanes predisposes corals to petroleum pollution from multiple sources. Previous research has evaluated petroleum toxicity to coral using a variety of methodologies, including monitoring effects of acute and chronic spills, in situ exposures, and ex situ exposures with both adult and larval stage corals. Variability in toxicant, bioassay conditions, species and other methodological disparities among studies prevents comprehensive conclusions regarding the toxicity of hydrocarbons to corals. This research evaluated the 48-hour toxicity of 1-methylnaphthalene to Porites divaricata using a continuous-flow passive dosing system. The range-finding exposure evaluated the dosing …
How Did The Deepwater Horizon Oil Spill Impact Deep-Sea Ecosystems?, Charles R. Fisher, Paul A. Montagna, Tracey Sutton
How Did The Deepwater Horizon Oil Spill Impact Deep-Sea Ecosystems?, Charles R. Fisher, Paul A. Montagna, Tracey Sutton
Marine & Environmental Sciences Faculty Articles
Approximately 90% of the volume of the Gulf of Mexico is contained in water deeper than 200 m, a region where the Deepwater Horizon (DWH) blowout had more impact on ecosystems than any previous oil spill. The remoteness and relative inaccessibility of the deep sea makes documenting even acute impacts to the animals that live in this realm difficult. This article reviews Natural Resource Damage Assessment studies and follow-up work funded as part of the Gulf of Mexico Research Initiative that targeted deepwater pelagic and benthic fauna. Oil was incorporated into the pelagic food web, and a reduction in planktonic …
Low Florida Coral Calcification Rates In The Plio-Pleistocene, Thomas C. Brachert, Markus Reuter, Stefan Kruger, James S. Klaus, Kevin P. Helmle, Janice M. Lough
Low Florida Coral Calcification Rates In The Plio-Pleistocene, Thomas C. Brachert, Markus Reuter, Stefan Kruger, James S. Klaus, Kevin P. Helmle, Janice M. Lough
Marine & Environmental Sciences Faculty Articles
In geological outcrops and drill cores from reef frameworks, the skeletons of scleractinian corals are usually leached and more or less completely transformed into sparry calcite because the highly porous skeletons formed of metastable aragonite (CaCO3) undergo rapid diagenetic alteration. Upon alteration, ghost structures of the distinct annual growth bands often allow for reconstructions of annual extension ( = growth) rates, but information on skeletal density needed for reconstructions of calcification rates is invariably lost. This report presents the bulk density, extension rates and calcification rates of fossil reef corals which underwent minor diagenetic alteration only. The corals derive from …
An Update On A Few Permanent Conjectures, Fuzhen Zhang
An Update On A Few Permanent Conjectures, Fuzhen Zhang
Mathematics Faculty Articles
We review and update on a few conjectures concerning matrix permanent that are easily stated, understood, and accessible to general math audience. They are: Soules permanent-on-top conjecture†, Lieb permanent dominance conjecture, Bapat and Sunder conjecture† on Hadamard product and diagonal entries, Chollet conjecture on Hadamard product, Marcus conjecture on permanent of permanents, and several other conjectures. Some of these conjectures are recently settled; some are still open.We also raise a few new questions for future study. (†conjectures have been recently settled negatively.)
Fish Communities Associated With Cold-Water Corals Vary With Depth And Substratum Type, Rosanna Milligan, Gemma Spence, J. Murray Roberts, David M. Bailey
Fish Communities Associated With Cold-Water Corals Vary With Depth And Substratum Type, Rosanna Milligan, Gemma Spence, J. Murray Roberts, David M. Bailey
Marine & Environmental Sciences Faculty Articles
Understanding the processes that drive the distribution patterns of organisms and the scales over which these processes operate are vital when considering the effective management of species with high commercial or conservation value. In the deep sea, the importance of scleractinian cold-water corals (CWCs) to fish has been the focus of several studies but their role remains unclear. We propose this may be due to the confounding effects of multiple drivers operating over multiple spatial scales. The aims of this study were to investigate the role of CWCs in shaping fish community structure and individual species-habitat associations across four spatial …
Coral Persistence To Ocean Warming Via Developmental Acclimation, Heather L. Schaneen
Coral Persistence To Ocean Warming Via Developmental Acclimation, Heather L. Schaneen
HCNSO Student Theses and Dissertations
Scleractinian corals are the ‘engineers’ of tropical coral reef ecosystems. Their three-dimensional structure provides habitat for thousands of fish and invertebrate species. The persistence of corals is threatened by climate change. In this study I investigated if corals may be able to increase tolerance to ocean warming through developmental acclimation, i.e. if corals that experience warmer temperatures during embryonic and larval development are better able to cope with higher temperatures later in life. Larvae of the broadcast spawning coral Montastraea cavernosa were raised at ambient (29°C) and future projected ocean warming temperatures (+2°C, 31°C). After larval settlement, coral juveniles from …
Temporal And Spatial Distribution Of Cetacean Strandings Focusing On The Bottlenose Dolphin (Tursiops Truncatus) With A Synthesis Of Potential Causes, April D. Clark
HCNSO Student Capstones
A comprehensive review of the literature and a quantitative statistical analysis of that information are presented. A total of 6,015 cetaceans stranded at 36 locations from 24 peer reviewed articles published between 1999 and 2014 are documented, with the two most common stranding locations being the Canary Islands - accounting for 49 of the total cetacean stranding events - and Cape Cod - accounting for 31 of total cetacean stranding events. The documented cetacean stranding events included 805 for bottlenose dolphins (Tursiops truncatus) at a total of ten locations from 11 peer reviewed articles. When all single stranding …
Transgenerational Effects Of Thermal Stress: Impacts On And Beyond Coral Reproduction, Alyson Kuba
Transgenerational Effects Of Thermal Stress: Impacts On And Beyond Coral Reproduction, Alyson Kuba
HCNSO Student Theses and Dissertations
Ocean warming causes stress to corals and records reveal that periods of thermal stress are increasing in frequency and severity. Previous studies show that thermal stress negatively impacts the reproductive output of corals. However, the transgenerational impacts of coral bleaching have never been quantified. As a consequence, it is unclear how ocean warming may alter population dynamics due to effects on reproduction and recruitment. This study quantified the transgenerational impacts of thermal stress in Montastraea cavernosa. To assess transgenerational effects of temperature stress during gametogenesis, colonies were exposed to elevated temperature for two weeks four months prior to spawning, …
Can Skeletal Morphology Support New Molecular Phylogenies Of Antedonidae (Crinoidea: Comatulida)?, Brenna Hays
Can Skeletal Morphology Support New Molecular Phylogenies Of Antedonidae (Crinoidea: Comatulida)?, Brenna Hays
HCNSO Student Theses and Dissertations
Antedonidae (Crinoidea: Comatulida) is the largest of extant crinoid families; it currently includes ~155 accepted species in 50 genera and accounts for ~23% of extant crinoid species (~29% of feather stars) and 27% of genera. Molecular phylogenies have returned the family as polyphyletic, with several clades scattered among non-antedonid sister groups (Hemery 2011, Hemery et al. 2013, Rouse et al. in prep.). Traditional morphological characteristics are thus inadequate for reconstructing relationships among taxa. SEM imaging was used in an effort to discover new diagnostic features that will support the molecular data, focusing on skeletal ossicles within the calyx, specifically the …
Artificial Reefs As Juvenile Fish Habitats In Marinas, Allison Patranella
Artificial Reefs As Juvenile Fish Habitats In Marinas, Allison Patranella
HCNSO Student Theses and Dissertations
Coastal infrastructure has replaced many vital fish nursery habitats with structures designed without fully mitigating for the loss of the natural ecosystems. This thesis details research focused on the use of small, inexpensive, artificial reef modules as replacement juvenile fish habitat within marinas. My research hypothesis was that the placement of small, structurally complex artificial reef modules would increase fish abundance and species richness relative to unmodified marina seawalls. Non-destructive visual surveys of fishes were completed monthly for 14 months for 12 artificial reef sites and 12 control (unmodified) sites within the Nova Southeastern University Guy Harvey Oceanographic Center (NSU-GHOC) …
Reproductive Ecology Of Dragonfishes (Family: Stomiidae) In The Gulf Of Mexico, Alex D. Marks
Reproductive Ecology Of Dragonfishes (Family: Stomiidae) In The Gulf Of Mexico, Alex D. Marks
HCNSO Student Theses and Dissertations
The most speciose group of fishes in the Gulf of Mexico is the dragonfishes (Family: Stomiidae). These fishes are dominant mesopelagic predators occurring throughout the world’s oceans, including the Antarctic seas. Little is known regarding their reproductive ecology, a consequence attributed to insufficient sample sizes of mature adults due to inadequacies of sampling gear; larger, sexually mature stomiid adults are more adept at net avoidance, thereby obfuscating synoptic reproductive biology studies. Between 2010-2011, the Offshore Nekton Sampling and Analysis Program was initiated in the northern Gulf of Mexico over all four seasons using a discrete-depth sampling system (MOCNESS) and a …
Mixed Methods Research: A Comprehensive Approach For Study Into The New Zealand Voluntary Carbon Market, S Jeff Birchall, Maya Murphy, Markus Milne
Mixed Methods Research: A Comprehensive Approach For Study Into The New Zealand Voluntary Carbon Market, S Jeff Birchall, Maya Murphy, Markus Milne
The Qualitative Report
Climate change and solutions to solving this wicked problem require a mixed methods research approach that draws on quantitative and qualitative inquiry together. The purpose of this article is to demonstrate the applicability (and effectiveness) of a mixed methods approach applied to research into the voluntary carbon market (VCM), a key path available for organisations electing to offset their carbon emissions, in New Zealand. The mixed methods approach included three unique data sets (quantitative documents, quantitative surveys, qualitative in-depth interviews), and was both explanatory (qualitative interviews built upon and contextualized the document analysis and survey results) and convergent (data sets …
Can Twilight Reefs Usher In A New Dawn For Depauperate Shallow Coral Reefs?, Hunter Kg Noren
Can Twilight Reefs Usher In A New Dawn For Depauperate Shallow Coral Reefs?, Hunter Kg Noren
HCNSO Student Theses and Dissertations
As shallow reefs continue to decline, scientists are searching for the key to their persistence; as it turns out, they may just need to look deeper. Below many shallow tropical reefs, there exist healthy and more stable mesophotic coral reef communities. The ability of these reefs to act as a refuge for declining shallow populations has garnered significant interest among the scientific community; however, the reproductive and larval aspects necessary for this to occur are unknown. This study assesses the ability of deep reefs to act as a reproductive refuge for shallow counterparts by examining gametic compatibility, viability and larval …
Effects Of Emf Emissions From Undersea Electric Cables On Coral Reef Fishes, Robert F. Jermain
Effects Of Emf Emissions From Undersea Electric Cables On Coral Reef Fishes, Robert F. Jermain
HCNSO Student Theses and Dissertations
The objective of this project was to determine if the electromagnetic field (EMF) emissions from undersea power cables impacted the local and transient marine life, with an emphasis on reef fishes. The work was done at South Florida Ocean Measurement Facility of Naval Surface Warfare Center, Carderock Division, Broward County, Florida. This facility functions as the hub for a range of active undersea detection and data transmission cables. It has multiple active submarine power cables that extend several miles offshore and which can deliver power and enable data transmission to and from a range of acoustic and EMF sensors. The …
Using Regression-Based Effect Size Meta-Analysis To Investigate Coral Responses To Climate Change, Niklas Alexander Kornder
Using Regression-Based Effect Size Meta-Analysis To Investigate Coral Responses To Climate Change, Niklas Alexander Kornder
HCNSO Student Theses and Dissertations
Attempts to quantify the effects of ocean acidification and warming (OAW) on scleractinian corals provide a growing body of response measurements. However, placing empirical results into an ecological context is challenging, owing to variations that reflect both natural heterogeneity and scientific bias. This study addresses the heterogeneity of climate change induced changes in coral recruitment and calcification. To discern scientific bias and identify drivers of the remaining heterogeneity, 100 publications were analyzed using a combination of weighted mixed effects meta-regression and factorial effect size meta‑analysis. A linear model was applied to quantify the variation caused by differing stress levels across …
Difficult Dialogues: Faculty Responses To A Gender Bias Literacy Training Program, Carol Isaac, Linda Baier Manwell, Patricia G. Devine, Cecilia Ford, Jennifer T. Sheridan, Molly Carnes
Difficult Dialogues: Faculty Responses To A Gender Bias Literacy Training Program, Carol Isaac, Linda Baier Manwell, Patricia G. Devine, Cecilia Ford, Jennifer T. Sheridan, Molly Carnes
The Qualitative Report
Diversity training is challenging and can evoke strong emotional responses from participants including resistance, shame, confusion, powerlessness, defensiveness, and anger. These responses create complex situations for both presenters and other learners. We observed 3 experienced presenters as they implemented 41 gender bias literacy workshops for 376 faculty from 42 STEMM (science, technology, engineering, mathematics, medicine) departments at one Midwestern university. We recorded questions and answers as well as participants’ non-verbal activity during each 2.5-hour workshop. Employing content analysis and critical incident technique, we identified content that elicited heightened activity and challenging dialogues among presenters and faculty. Results from analysis of …