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2021

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Modeling Coastal Vulnerability Of The St. Johns River And Northeastern Florida Shorelines, Madison E. Heppe Jan 2021

Modeling Coastal Vulnerability Of The St. Johns River And Northeastern Florida Shorelines, Madison E. Heppe

UNF Graduate Theses and Dissertations

Coastal and riverine communities, with anthropogenic congestion and natural and economic resources, are vulnerable to climate change impacts including rising sea levels and increasing severity and frequency of storms. Coastal habitats are being increasingly recognized as natural infrastructure that provides resiliency against these stressors. However, few studies have analyzed coastal vulnerability at landscape scale with finely resolved spatial data that account for habitats and demographics. The purpose of this study is to map the coastal vulnerability of the St. Johns River and adjacent Northeastern Florida Atlantic shoreline within the St. Johns River Water Management District. Unique to this study is …


Doing Kink Vs. Being Kinky: A Systematic Scoping Review Of The Literature On Bdsm Behavior, Orientation, And Identity, Angel Renee Kalafatis-Russell Jan 2021

Doing Kink Vs. Being Kinky: A Systematic Scoping Review Of The Literature On Bdsm Behavior, Orientation, And Identity, Angel Renee Kalafatis-Russell

UNF Graduate Theses and Dissertations

This systematic scoping review examines the literature on BDSM/kink as it relates to three core dimensions of sexuality: behavior, orientation, and identity. The main sexuality framework used for defining these dimensions is Sexual Configurations Theory (van Anders, 2015). This search is guided by two research questions. 1) Are there empirical differences between individuals who simply consider BDSM to be something they do (i.e., behavior only) and individuals who consider BDSM to be part of who they are (i.e., kink-identified)? 2) Are there any existing, psychometrically validated, quantitative measures to assess BDSM as an identity component? I hypothesized that a model …


Reproductive Biology Of The Spinner Shark Carcharhinus Brevipinna, Off The Southeast U.S. Coast, Kristin K. Palmrose Jan 2021

Reproductive Biology Of The Spinner Shark Carcharhinus Brevipinna, Off The Southeast U.S. Coast, Kristin K. Palmrose

UNF Graduate Theses and Dissertations

The spinner shark, Carcharhinus brevipinna, is a large coastal shark species that is common on the U.S. southeast coast and caught in both commercial and recreational fisheries. Little research has been conducted on the life history of C. brevipinna in the Northwestern Atlantic, presenting challenges for fishery management. This is especially true for reproductive biology, warranting a need to determine how rapidly individuals are reproducing and contributing to the population. This study aimed to characterize reproduction in C. brevipinna by determining size-at-maturity, reproductive seasonality, periodicity, and fecundity. This was accomplished by analyzing changes in reproductive tract morphology and histology, …


Electrochemically Precipitated Struvite Effects On Extractable Nutrients Compared With Other Fertilizer-Phosphorus Sources, Ryder Anderson, Kristofor R. Brye, Laszlo Kekedy-Nagy, Lauren Greenlee, Edward Gbur, Trenton Roberts Jan 2021

Electrochemically Precipitated Struvite Effects On Extractable Nutrients Compared With Other Fertilizer-Phosphorus Sources, Ryder Anderson, Kristofor R. Brye, Laszlo Kekedy-Nagy, Lauren Greenlee, Edward Gbur, Trenton Roberts

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Recovery of struvite, or magnesium ammonium phosphate (MgNH4PO4 · 6H2O), from wastewater streams may provide an alternative to traditional P fertilizers. Little research has assessed the behavior of struvite relative to other commercially available, fertilizer-P sources in historically row-cropped soils in the United States. The objective of this study was to evaluate total extractable P and other nutrients from electrochemically (ECST) and chemically precipitated struvite (CPST) compared with triple superphosphate (TSP), diammonium phosphate (DAP), monoammonium phosphate (MAP), and rock phosphate (RP) in a moist-soil incubation without plants using varying soil textures (loam, silt loam, and …


“With Facebook, You Have A Voice:” Neoliberalism And Activism In Mark Zuckerberg’S Georgetown Address, Calvin Coker, Ryan Corso-Gonzales Jan 2021

“With Facebook, You Have A Voice:” Neoliberalism And Activism In Mark Zuckerberg’S Georgetown Address, Calvin Coker, Ryan Corso-Gonzales

Faculty and Staff Scholarship

In October of 2019, Facebook CEO Mark Zuckerberg streamed a speech from Georgetown University defending the company’s practice of not regulating or rejecting blatantly false political advertisements placed on their site. The speech, part of his “transparency tour” to allay concerns about the growing social power and stunning irresponsibility of Facebook, presents a troubling articulation of “voice” along neoliberal lines that atomizes the individual, separates activism from communities, and conflates activity on Facebook with free expression. In this essay, we use rhetorical scholarship on voice to illuminate how Zuckerberg’s speech both relies on and retrenches neoliberal rationality to flatten difference …


Geometric Morphometric Analyses Define Riverine And Lacustrine Species Flocks Of Himalayan Snowtrout (Cyprinidae: Schizothorax) In Nepal, Binod Regmi, Marlis R. Douglas, David R. Edds, Michael E. Douglas Jan 2021

Geometric Morphometric Analyses Define Riverine And Lacustrine Species Flocks Of Himalayan Snowtrout (Cyprinidae: Schizothorax) In Nepal, Binod Regmi, Marlis R. Douglas, David R. Edds, Michael E. Douglas

Biological Sciences Faculty Publications and Presentations

Freshwater fishes in the river and lake systems in the Himalayas and Tibetan Plateau are morphologically diverged but the evolutionary relationship of putative subspecies separated in these freshwater systems has not been explored. Snowtrout (Schizothorax spp.) are minnows (Cyprinidae) broadly distributed in Asia. Body shapes of 3 Lake Rara (northwest Nepal) endemics (S. macrophthalmus, S. nepalensis, S. raraensis) and 2 widely distributed riverine species (S. progastus, S. richardsonii) across 3 drainages in Nepal (i.e. Karnali, Gandaki, and Koshi Rivers) were studied using geometric morphometry. Data were derived from museum voucher specimens/tissues collected …


Modeling Of The Van Der Waals Forces During The Adhesion Of Capsule-Shaped Bacteria To Flat Surfaces, Fathiah Mohamed Zuki, Robert G.J. Edyvean, Hamed Pourzolfaghar, Norherdawati Kasim Jan 2021

Modeling Of The Van Der Waals Forces During The Adhesion Of Capsule-Shaped Bacteria To Flat Surfaces, Fathiah Mohamed Zuki, Robert G.J. Edyvean, Hamed Pourzolfaghar, Norherdawati Kasim

Research Publications (2021 to 2025)

A novel model is developed to evaluate the van der Waals (vdW) interactions between a capsule shaped bacterium (P. putida) and flat minerals plates in different approach profiles: Vertically and horizontally. A comparison of the approaches to the well-developed spherical particle to mineral surface (semi-infinite wall and spherical) approach has been made in this investigation. The van der Waals (vdW) interaction potentials for a capsule-shaped bacterium are found using Hamaker’s microscopic approach of sphere to plate and cylinder to plate either vertically or horizontally to the flat surface. The numerical results show that a horizontal orientated capsule shaped bacterium to …


Online Support-Provision In The Self-Disclosure Of Eating Disorders, Nur Azwin Zulkarnain, Jariah Mohd Jan, Ridwan Wahid Jan 2021

Online Support-Provision In The Self-Disclosure Of Eating Disorders, Nur Azwin Zulkarnain, Jariah Mohd Jan, Ridwan Wahid

Research Publications (2021 to 2025)

This paper highlights the importance of appropriate communication with individuals who suffer from eating disorders (ED). The negative perception that society has towards ED often leads its patients to conceal their problems and avoid seeking help (Perveen et al., 2017). Understanding the manners in which support-providers approach ED patients in order to eliminate the fear is therefore important. Data was collected from the National Eating Disorders Association (NEDA) website from January to March 2018, where support-providers' responses to posts of self-disclosure were qualitatively analyzed through computer-mediated discourse analysis (CMDA) using McCormack's (2010) Categories of Social Support and Blum-Kulka and Olshtain's …


Youth Awareness Level Towards Sustainable Development Goals (Sdgs) In Greater Kuala Lumpur, Zul Ilham, Wan Abd Al Qadr Imad Wan-Mohtar, A.A. Jamaludin Jan 2021

Youth Awareness Level Towards Sustainable Development Goals (Sdgs) In Greater Kuala Lumpur, Zul Ilham, Wan Abd Al Qadr Imad Wan-Mohtar, A.A. Jamaludin

Research Publications (2021 to 2025)

In 2015, the United Nations initiated the Sustainable development goals (SDGs) to address the global changes while ensuring better and sustainable actions for the future. Among Asian countries, Malaysia has also made an effort to integrate the SDGs into its national development plan. In this study, the awareness level of youth from high schools in Greater Kuala Lumpur towards Sustainable Development Goals has been assessed through questionnaires with 60 questions given to 421 respondents. Sufficient levels of feedbacks for the whole population were acquired (Confidence level: 95%, Margin of error: 5%). Five schools were selected and grouped into 3 types: …


Extending Animal Welfare Science To Include Wild Animals, Walter Veit, Heather Browning Jan 2021

Extending Animal Welfare Science To Include Wild Animals, Walter Veit, Heather Browning

Animal Sentience

Ng’s (2016) target article built on his earlier work advocating a science of welfare biology (Ng 1995). Although there were problems with the models proposed in Ng’s original paper regarding the balance of pleasure and suffering for wild animals, his call for a science of wild animal welfare was a sound one. This does not require a new discipline but just an extension of the existing frameworks and methods of animal welfare science to include wild animals.


The Use Of Mineral Trioxide Aggregate In The Treatment Of Horizontal Root Fractures: A Case Presentation And Literature Update, Elif Ballikaya, H. Cem Güngör Jan 2021

The Use Of Mineral Trioxide Aggregate In The Treatment Of Horizontal Root Fractures: A Case Presentation And Literature Update, Elif Ballikaya, H. Cem Güngör

School of Dentistry Faculty Research and Publications

Root fracture is a rarely seen traumatic injury in permanent dentition. It has a prevalence of 0.5-7 %. Tooth survival is significantly affected by the type of healing and the location of the root fracture. Additionally, the patient’s age, stage of root development, mobility and dislocation of the coronal fragment, and diastasis between fragments following this kind of injury are among the important factors. In this case presentation, the management with MTA plug and 6-year follow-up of a horizontal root fracture was reported. A literature update regarding the use of MTA in the management of horizontal root fractures was also …


Understanding And Promoting Racial Diversity In Healthcare Settings To Address Disparities In Pandemic Crisis Management, Azza Sarfraz, Zouina Sarfraz, Alanna Barrios, Kuchalambal Agadi, Sindhu Thevuthasan, Krunal Pandav, Manish Kc, Muzna Sarfraz, Pedram Rad, George Michel Jan 2021

Understanding And Promoting Racial Diversity In Healthcare Settings To Address Disparities In Pandemic Crisis Management, Azza Sarfraz, Zouina Sarfraz, Alanna Barrios, Kuchalambal Agadi, Sindhu Thevuthasan, Krunal Pandav, Manish Kc, Muzna Sarfraz, Pedram Rad, George Michel

Department of Paediatrics and Child Health

Background: Health disparities have become apparent since the beginning of the COVID-19 pandemic. When observing racial discrimination in healthcare, self-reported incidences, and perceptions among minority groups in the United States suggest that, the most socioeconomically underrepresented groups will suffer disproportionately in COVID-19 due to synergistic mechanisms. This study reports racially-stratified data regarding the experiences and impacts of different groups availing the healthcare system to identify disparities in outcomes of minority and majority groups in the United States.
Methods: Studies were identified utilizing PubMed, Embase, CINAHL Plus, and PsycINFO search engines without date and language restrictions. The following keywords were used: …


Covid-19 Mutual Aid, Anti-Authoritarian Activism, And The Law, Michael Haber Jan 2021

Covid-19 Mutual Aid, Anti-Authoritarian Activism, And The Law, Michael Haber

Hofstra Law Faculty Scholarship

As the COVID-19 pandemic spread across the globe in the spring of 2020, thousands of grassroots, participatory, and often social movement-connected community efforts to help feed, shelter, and care for one another through the crisis were launched, many of which identified their projects as “mutual aid.” This article presents an overview of mutual aid and gives an introduction to the legal issues being confronted by mutual aid groups. It begins by presenting a history of mutual aid practices, principally in the U.S. context, situating mutual aid within the political framework of anti-authoritarian activism. It then gives an overview of common …


Bioresorbable Composite Polymeric Materials For Tissue Engineering Applications, Sakineh Hajebi, Saeed Mohammadi Nasr, Navid Rabiee, Mojtaba Bagherzadeh, Sepideh Ahmadi, Mohammad Rabiee, Mohammadreza Tahriri, Lobat Tayebi, Michael R. Hamblin Jan 2021

Bioresorbable Composite Polymeric Materials For Tissue Engineering Applications, Sakineh Hajebi, Saeed Mohammadi Nasr, Navid Rabiee, Mojtaba Bagherzadeh, Sepideh Ahmadi, Mohammad Rabiee, Mohammadreza Tahriri, Lobat Tayebi, Michael R. Hamblin

School of Dentistry Faculty Research and Publications

This review covers the development of bioresorbable polymeric composites for applications in tissue engineering. Various commercially available bioresorbable polymers are described, with emphasis on recent bioresorbable composites based on natural and synthetic polymers. Bioresorbable polymers contain hydrolyzable bonds, which are subjected to chemical degradation via either reactive hydrolysis or enzyme-catalyzed active hydrolysis. For synthetic polymers, chemical hydrolysis is the most important mode of degradation. The degradation rate can be controlled by varying the molecular weight and crystallinity. Examples of bioresorbable polymers are: polyurethane, poly(D,L)lactide, poly(lactic-co-glycolic) acid, poly(α-hydroxy acids), cross-linked polyester hydrogels, poly(orthoesters), polyanhydrides and polyethylene glycol.


A 3d Nanostructured Calcium-Aluminum-Silicate Scaffold With Hierarchical Meso-Macroporosity For Bone Tissue Regeneration: Fabrication, Sintering Behavior, Surface Modification And In Vitro Studies, Ashkan Bigham, Amir Hamed Aghajanian, Mehdi Movahedi, Mansoureh Sattary, Mohammad Rafienia, Lobat Tayebi Jan 2021

A 3d Nanostructured Calcium-Aluminum-Silicate Scaffold With Hierarchical Meso-Macroporosity For Bone Tissue Regeneration: Fabrication, Sintering Behavior, Surface Modification And In Vitro Studies, Ashkan Bigham, Amir Hamed Aghajanian, Mehdi Movahedi, Mansoureh Sattary, Mohammad Rafienia, Lobat Tayebi

School of Dentistry Faculty Research and Publications

This is a comprehensive study reporting the fabrication of highly porous Gehlenite scaffold (Ca2Al2SiO7)—both with and without surface modification—for the first time. The sintering temperature of Gehlenite scaffolds was optimized. Next, the optimized Gehlenite scaffold was coated by polycaprolactone (PCL)-Forsterite (Mg2SiO4) nanocomposite to improve the scaffold’s brittleness and biological properties. 1375 °C was found to be the optimized sintering temperature by which the Gehlenite scaffold was consolidated. Different PCL and Forsterite concentrations were separately applied on the optimized scaffold to yield a complete nanocomposite coating without clogging the macroporous structure. …


Macro-And Micromechanical Modelling Of Ha-Elastin Scaffold Fabricated Using Freeze Drying Technique, Matin Mohammadzadeh Rad, Saeed Saber-Samandari, Mojtaba Sadighi, Lobat Tayebi, Mohammad Mohammadi Aghdam, Amirsalar Khandan Jan 2021

Macro-And Micromechanical Modelling Of Ha-Elastin Scaffold Fabricated Using Freeze Drying Technique, Matin Mohammadzadeh Rad, Saeed Saber-Samandari, Mojtaba Sadighi, Lobat Tayebi, Mohammad Mohammadi Aghdam, Amirsalar Khandan

School of Dentistry Faculty Research and Publications

No abstract provided.


Introduction: What Matters For Black Workers After 2020?, Michael Z. Green Jan 2021

Introduction: What Matters For Black Workers After 2020?, Michael Z. Green

Faculty Scholarship

This paper operates as the Introduction to a Symposium that resulted from a Call for Papers discussing the topic of "What Matters for Black Workers after 2020?" to be published in the 25th volume of the Employee Rights and Employment Policy Journal for 2021. This paper briefly discusses the papers in that Symposium publication authored by Jamillah Bowman Williams, Michael Duff, and Henry Chambers that address this topic. I thank Noah Zatz, Marty Malin, Michael Oswalt, Marcia McCormick, and Tristan Kirvan for their dedicated efforts, feedback, and encouragement in completing this Symposium issue for the journal on this very important …


The Issue Class Revolution, Myriam E. Gilles, Gary Friedman Jan 2021

The Issue Class Revolution, Myriam E. Gilles, Gary Friedman

Articles

In 2013, four Supreme Court Justices dissented from the decision in Comcast Corp. v. Behrend, which established heightened requirements for the certification of damages class actions. In a seemingly offhanded footnote, these dissenters observed that district courts could avoid the individualized inquiries that increasingly doom damages classes by certifying a class under Federal Rule of Civil Procedure 23(c)(4) on liability issues only and "leaving individual damages calculations to subsequent proceedings." The dissenters were onto something big. In fact, the issue class and follow-on damages model has broad potential to restore the efficacy of aggregate litigation across several substantive areas …


Concurrent Application Of Conductive Biopolymeric Chitosan/ Polyvinyl Alcohol/ Mwcnts Nanofibers, Intracellular Signaling Manipulating Molecules And Electrical Stimulation For More Effective Cardiac Tissue Engineering, Ali Abedi, Behnaz Bakhshandeh, Ali Babaie, Javad Mohammadnejad, Sadaf Vahdat, Reza Mombeiny, Seyed Reza Moosavi, Javid Amini, Lobat Tayebi Jan 2021

Concurrent Application Of Conductive Biopolymeric Chitosan/ Polyvinyl Alcohol/ Mwcnts Nanofibers, Intracellular Signaling Manipulating Molecules And Electrical Stimulation For More Effective Cardiac Tissue Engineering, Ali Abedi, Behnaz Bakhshandeh, Ali Babaie, Javad Mohammadnejad, Sadaf Vahdat, Reza Mombeiny, Seyed Reza Moosavi, Javid Amini, Lobat Tayebi

School of Dentistry Faculty Research and Publications

Fabrication of appropriate electro-conductive scaffold, application of small molecules (SMs), electrical stimulation (ES), and stem cells are steps forward in cardiac tissue engineering. Herein, for the first time, all mentioned factors have been taken into account concurrently regarding the differentiation of unrestricted somatic stem cells (USSCs) into cardiac cells. To accomplish this goal, electrospun composite scaffolds made of chitosan (CS) and polyvinyl alcohol (PVA) with multi-wall carbon nanotubes (MWCNTs; ranged from 0 to 2.5% w/w) were fabricated. After analyzing mechanical, electrical, and biological properties, the best MWCNTs portion was selected. Of note, the addition of 2%w/w MWCNTs to the CS/PVA …


The Potential For Remote Sensing Measurement Of Dissolved Organic Carbon As A Tool For Metal Risk Assessments, Mickey Nielsen Jan 2021

The Potential For Remote Sensing Measurement Of Dissolved Organic Carbon As A Tool For Metal Risk Assessments, Mickey Nielsen

Theses and Dissertations (Comprehensive)

The biotic ligand model (BLM) is a tool used to quantitatively evaluate how receiving water chemistry affects the bioavailability of metals. Sensitivity testing can be used to understand how the model outputs vary in response to systematic changes in water chemistry inputs. This will allow users of such models to understand how accurate their input parameters must be for a specified level of confidence in the output. Our focus was on dissolved organic carbon (DOC), which is often the most limiting data for application of BLM approaches to metals risk management. To potentially address DOC data limitations remote sensing can …


Binary Black Widow Optimization Algorithm For Feature Selection Problems, Ahmed Al-Saedi Jan 2021

Binary Black Widow Optimization Algorithm For Feature Selection Problems, Ahmed Al-Saedi

Theses and Dissertations (Comprehensive)

This thesis addresses feature selection (FS) problems, which is a primary stage in data mining. FS is a significant pre-processing stage to enhance the performance of the process with regards to computation cost and accuracy to offer a better comprehension of stored data by removing the unnecessary and irrelevant features from the basic dataset. However, because of the size of the problem, FS is known to be very challenging and has been classified as an NP-hard problem. Traditional methods can only be used to solve small problems. Therefore, metaheuristic algorithms (MAs) are becoming powerful methods for addressing the FS problems. …


The Experiences Of Women Who Have A Child Diagnosed With An Eating Disorder: A Narrative Inquiry, Jennifer Scarborough Jan 2021

The Experiences Of Women Who Have A Child Diagnosed With An Eating Disorder: A Narrative Inquiry, Jennifer Scarborough

Theses and Dissertations (Comprehensive)

Eating disorders (EDs) are serious, life-threatening illnesses that typically occur in adolescence. Immediate intervention is necessary in order to interrupt the associated behaviours. Typically, adolescents struggling with EDs minimize the severity the illness has on their psychological and physiological wellbeing. For this reason, family involvement in the intervention is strongly recommended. Additionally, family involvement has shown to increase the likelihood of better outcomes. Parents are typically tasked with the responsibility of making and monitoring meals and/or interrupting compensatory behaviours. These tasks often lead to high conflict. Despite the importance of parental involvement, predominantly, it is mothers who fulfill the intensive …


The Impact Of Combined Flexion And Compression On The Mechanical Integrity Of The Annulus Fibrosus, Keaton Briar Jan 2021

The Impact Of Combined Flexion And Compression On The Mechanical Integrity Of The Annulus Fibrosus, Keaton Briar

Theses and Dissertations (Comprehensive)

Introduction: Intervertebral disc (IVD) herniation is characterized by an expulsion of nucleus pulposus (NP) material through the annulus fibrosus (AF). The AF contains two major adhesive structures, the intralamellar matrix and the interlamellar matrix, which act to maintain the strength of the AF and prevent NP material migration. As a herniation occurs, clefts form within the intralamellar matrix, pushing the NP between adjacent collagen fibres; meanwhile, delamination of the interlamellar matrix causes the NP to pool between layers of the AF. Further, herniation more readily occurs in a combined loading scenario of both compression and flexion. Flexion, and in particular …


Centuries Of Heat Waves Over India During 20th And 21st Century, Naveena Neelam, Gubbala C. Satyanerayana, Kotla S. Rao, Nandivada Umakantha, Dharma Raju Jan 2021

Centuries Of Heat Waves Over India During 20th And 21st Century, Naveena Neelam, Gubbala C. Satyanerayana, Kotla S. Rao, Nandivada Umakantha, Dharma Raju

Applied Environmental Research

An assessment of temperature extremes is made for the Indian subcontinent to identify the changes since 1951 to 2015, and for the future climate periods till 2100 for all the 21 CMIP5 (Coupled Model intercomparision Project phase 5) models and the representative concentration pathways RCP4.5 and RCP8.5 were examined for the period from 1 March to 31 May to characterize the heat waves in future climates and mean maximum and mean minimum bias were evaluated for the Indian subcontinent. Later two highest recorded temperature regions were chosen Northwest & Central India (NW&CIN) and only central India (CIN) box and the …


How About That Extension? Biomechanical Roles Of Spines In Crustacean Nauplii, Emily N. Branam , '21 Jan 2021

How About That Extension? Biomechanical Roles Of Spines In Crustacean Nauplii, Emily N. Branam , '21

Senior Theses, Projects, and Awards

Marine plankton possess elongated body structures, such as spines and horns, that increase drag on the body. While these extensions are often considered an anti-predation mechanism, the biomechanical implications of these structures are less studied. Using the barnacle nauplii Octolasmis spp., I explore the role of one such body extension, the dorsal thoracic spine, through amputation. Motion analysis revealed slower swimming and more erratic trajectories in dorsal thoracic spine amputees than those in control. Limb kinematic adjustments such as a larger beat amplitude, increased phase lag, and reduced contralateral symmetry were observed in amputees. While these changes may act …


Virus-Like Particles Enable Low Levels Of Crispr-Cas9-Mediated Homology-Directed Repair, Noah C. Cheng , '21 Jan 2021

Virus-Like Particles Enable Low Levels Of Crispr-Cas9-Mediated Homology-Directed Repair, Noah C. Cheng , '21

Senior Theses, Projects, and Awards

The development of efficient and safe delivery platforms for CRISPR-Cas9 genome editing tools is one of the largest challenges for in vivo therapeutic genome editing. Virus-like particles (VLPs), which harness viral packaging and delivery mechanisms, have been shown to efficiently deliver CRISPR-Cas9 ribonucleoprotein complexes (RNPs) to cells. Here, we sought to elucidate whether VLPs can deliver the necessary components for CRISPR-Cas9-mediated homology-directed repair (HDR). We tested four different methods to induce HDR in a reporter cell line using VLPs: [1] nucleofection of HDR repair templates into cells and subsequent treatment with VLPs carrying Cas9 RNPs (Cas9 VLPs), [2] treatment with …


Seed-Shattering Phenology At Soybean Harvest Of Economically Important Weeds In Multiple Regions Of The United States. Part 2: Grass Species, Lauren M. Schwartz-Lazaro, Lovreet S. Shergill, Jeffrey A. Evans, Muthukumar V. Bagavathiannan, Shawn C. Beam, Mandy Bish, Jason A. Bond, Kevin W. Bradley, William C. Curran, Adam S. Davis, Wesley J. Everman, Michael L. Flessner, Steven C. Haring, Nicholas R. Jordan, John L. Lindquist, Jason K. Norsworthy, Tameka Sanders, Larry E. Steckel, Mark J. Vangessel, Blake Young, Steven B. Mirsky Jan 2021

Seed-Shattering Phenology At Soybean Harvest Of Economically Important Weeds In Multiple Regions Of The United States. Part 2: Grass Species, Lauren M. Schwartz-Lazaro, Lovreet S. Shergill, Jeffrey A. Evans, Muthukumar V. Bagavathiannan, Shawn C. Beam, Mandy Bish, Jason A. Bond, Kevin W. Bradley, William C. Curran, Adam S. Davis, Wesley J. Everman, Michael L. Flessner, Steven C. Haring, Nicholas R. Jordan, John L. Lindquist, Jason K. Norsworthy, Tameka Sanders, Larry E. Steckel, Mark J. Vangessel, Blake Young, Steven B. Mirsky

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Seed shatter is an important weediness trait on which the efficacy of harvest weed seed control (HWSC) depends. The level of seed shatter in a species is likely influenced by agroecological and environmental factors. In 2016 and 2017, we assessed seed shatter of eight economically important grass weed species in soybean [Glycine max (L.) Merr.] from crop physiological maturity to 4 wk after maturity at multiple sites spread across 11 states in the southern, northern, and mid-Atlantic United States. From soybean maturity to 4 wk after maturity, cumulative percent seed shatter was lowest in the southern U.S. regions and …


Boolean Network Control With Ideals, Ian H. Dinwoodie Jan 2021

Boolean Network Control With Ideals, Ian H. Dinwoodie

Mathematics and Statistics Faculty Publications and Presentations

A method is given for finding controls to transition an initial state x0 to a target set in deterministic or stochastic Boolean network control models. The algorithms use multivariate polynomial algebra. Examples illustrate the application.


Earthworm Differences Among Mound Positions In Native Prairies In The Ozark Highlands, Carlee D. Hensley, Kristofor R. Brye, Mary C. Savin, Lisa S. Wood, Edward E. Gbur Jan 2021

Earthworm Differences Among Mound Positions In Native Prairies In The Ozark Highlands, Carlee D. Hensley, Kristofor R. Brye, Mary C. Savin, Lisa S. Wood, Edward E. Gbur

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Mounded, tallgrass prairie ecosystems are a unique, endangered ecosystem due to severe disturbance for agricultural production and/or urban expansion. Limited research exists on earthworm (Lumbricus terrestris) dynamics in mounded, tallgrass prairies, particularly in the Ozark Highlands region of northwestern Arkansas. The objectives of this study were to evaluate the effects of soil moisture regime (SMR), landscape position (LP), and sample date on earthworm densities in the top 20 cm of soil in two mounded, native prairies in the Ozark Highlands region of northwestern Arkansas. Juvenile and total earthworm densities were five times greater (P < .05) in the udic- and aquic-inter-mound combinations than any other SMR-LP combination in October 2018 and May 2019, respectively. Adult earthworm densities were two times greater (P < .05) in the aquic-inter-mound at Searles Prairie than any other SMR-LP combination in either mounded prairie. Juvenile earthworm densities were three times greater (P < .05) in May 2019 than in May 2018 at Chesney Prairie, but adult and total earthworm density did not change over the same period of time. Combined across all data, juvenile and total earthworm densities were positively correlated (P …


How Hpa Stress Response Relates To Anxiety: Sex Differences And Estradiol, Carrie Shea Jan 2021

How Hpa Stress Response Relates To Anxiety: Sex Differences And Estradiol, Carrie Shea

Dissertations and Theses @ UNI

Cortisol is a stress hormone secreted during activation of the hypothalamic-pituitary-adrenal (HPA) axis, a system within the body that shows increased activation in response to stress. Cortisol is often assumed to be related to anxiety. However, previous research on the relationship between cortisol and anxiety is mixed. The present research examined the moderating effects of sex differences and estrogen on the relationship between cortisol reactivity and anxiety. Participants (n = 54) completed the Trier Social Stress Test (TSST) and completed measures of anxiety. Consistent with previous research, it was hypothesized that men will exhibit increased cortisol reactivity compared to women. …