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Frozen Green Leaves As Potential Nutrient Subsidies In North American Mangrove Ecosystems, Katelyn Overstreet, Emily M. Dangremond, Ilka C. Feller Jan 2025

Frozen Green Leaves As Potential Nutrient Subsidies In North American Mangrove Ecosystems, Katelyn Overstreet, Emily M. Dangremond, Ilka C. Feller

Biological Sciences Faculty Publications

Avicennia germinans, the black mangrove, has shifted its range limit northward, and increased in abundance in the Southeastern United States. In January 2018, a 3-day freeze event caused substantial defoliation of green leaves in A. germinans near its northernmost range limit in St. Augustine, FL. During their recovery, plants that lost their leaves grew similarly to plants fertilized with nitrogen, leading to the hypothesis that freeze-killed green leaves (frozen green) may have acted as a fertilizer. To assess the value of frozen green litter as a nutrient subsidy, we performed an experiment in which A. germinans seedlings were grown …


Edge Effects Impact Blue Carbon Dynamics Across Coastal Ecotones In A Tropical Seascape, Erik S. Yando, Jahson B. Alemu I, Kiah Eng Lim, Taylor M. Sloey, Michiel Van Breugel, Natasha Bhatia, Daniel A. Friess Jan 2025

Edge Effects Impact Blue Carbon Dynamics Across Coastal Ecotones In A Tropical Seascape, Erik S. Yando, Jahson B. Alemu I, Kiah Eng Lim, Taylor M. Sloey, Michiel Van Breugel, Natasha Bhatia, Daniel A. Friess

Biological Sciences Faculty Publications

Coastal wetlands are important for their ability to regulate global climate through the sequestration and long-term storage of carbon. Accurate quantification of ecosystem-specific carbon dynamics (including sequestration, storage, and fluxes) is needed to develop accurate carbon budgets that inform climate change mitigation. Most work to quantify carbon dynamics either use subsampling in core habitats or benefit transfers to upscale values. While these approaches are valuable, our understanding of carbon dynamics across ecosystem transitions and overall heterogeneity remains a critical gap in coastal ecosystems as boundaries are not always clear. In this study, we established transects across both mangrove and seagrass …


Assemblage Structure Of Large Carnivorous Coral Reef Fishes At Shallow And Mesophotic Depths In Two Of The Largest And Most Isolated Marine Protected Areas In The Philippines, Rene A. Abesamis, Mikaela L. Salvador, Ryan Murray, Kymry Delijero, Segundo F. Conales, Jean T. Utzurrum, Christopher E. Bird, David T. Gauthier Jan 2025

Assemblage Structure Of Large Carnivorous Coral Reef Fishes At Shallow And Mesophotic Depths In Two Of The Largest And Most Isolated Marine Protected Areas In The Philippines, Rene A. Abesamis, Mikaela L. Salvador, Ryan Murray, Kymry Delijero, Segundo F. Conales, Jean T. Utzurrum, Christopher E. Bird, David T. Gauthier

Biological Sciences Faculty Publications

Overfishing remains a threat to coral reef fishes globally, with large carnivores often the most vulnerable. Marine protected areas (MPAs) can restore fish populations and biodiversity, but their impact has been understudied in mesophotic coral ecosystems (MCEs – extensions of shallow reefs from 30 to 150 m). We analyzed baited remote underwater videos recorded in 2016 to investigate the assemblage structure of large carnivorous fishes at shallow (4–12 m) and mesophotic (45–96 m) depths in two of the largest and most isolated MPAs in the Philippines: Tubbataha Reefs Natural Park (TRNP), a fully no-take MPA enacted in 1988; and Cagayancillo, …


Building Heat-Resilient Caribbean Reefs: Integrating Thermal Thresholds And Coral Colonies Selection In Restoration, Macarena Blanco Pimentel, Johanna Calle-Triviño, Daniel J. Barshis, Sancia E. T. Van Der Meij, Megan K. Morikawa Jan 2025

Building Heat-Resilient Caribbean Reefs: Integrating Thermal Thresholds And Coral Colonies Selection In Restoration, Macarena Blanco Pimentel, Johanna Calle-Triviño, Daniel J. Barshis, Sancia E. T. Van Der Meij, Megan K. Morikawa

Biological Sciences Faculty Publications

Caribbean reefs face increasingly frequent and intense bleaching events, adding to the numerous other threats impacting these ecosystems. Addressing these challenges requires global action to reduce climate drivers, along with local efforts like reef restoration. Active restoration using thermotolerant coral colonies offers a potential strategy to alleviate these impacts; however, gaps remain in identifying context-specific temperature thresholds to guide colony selection and standardize thermotolerance assessment methods. This study addressed these gaps in two phases. First, by determining practical thresholds to differentiate species responses to heat stress; and second, by developing a framework to identify and prioritize resilient colonies for restoration. …


First Reference Genomes For Two Mesophotic Reef Building Coral Species: Leptoseris Cf. Scabra And Montipora Cf. Grisea, Veronica Z. Radice, Johanna C. Gijsbers, Silvia Vimercati, Daniel J. Barshis Jan 2025

First Reference Genomes For Two Mesophotic Reef Building Coral Species: Leptoseris Cf. Scabra And Montipora Cf. Grisea, Veronica Z. Radice, Johanna C. Gijsbers, Silvia Vimercati, Daniel J. Barshis

Biological Sciences Faculty Publications

Coral mortality is occurring worldwide at an alarming rate. Despite the immense and underestimated biodiversity of reef-building corals, very few genomes are available. Further, almost all genomic resources originate from shallow water corals even though photosynthetic, symbiotic corals occur at mesophotic depths deeper than 30 m and even >100 m. We present annotated, de novo genomes for two mesophotic, scleractinian (reef-building) corals Montipora cf. grisea and Leptoseris cf. scabra from American Sāmoa, the latter being the first genome for the widespread genus Leptoseris. We used PacBio continuous long reads and Omni-C data to assemble chromosome-level reference genomes. For Montipora …


Validating A Novel Capability Of Assessing Pathways Of Animal Water Gain And Loss, Zachary T. Steele, Karen Caceres, Zachary A. David, Lisa M. Shollenberger, Alexander R. Gerson, Seth D. Newsome, John P. Whiteman Jan 2025

Validating A Novel Capability Of Assessing Pathways Of Animal Water Gain And Loss, Zachary T. Steele, Karen Caceres, Zachary A. David, Lisa M. Shollenberger, Alexander R. Gerson, Seth D. Newsome, John P. Whiteman

Biological Sciences Faculty Publications

Understanding variations in the routes by which wild animals gain and lose water is challenging, and common methods require longitudinal sampling, which can be prohibitive. However, a new approach uses Δ′¹⁷OBW (Δ′¹⁷O of animal body water), calculated from measurements of δ′¹⁷O and δ′¹⁸O in a single sample, as a natural tracer of water flux. Δ′¹⁷OBW is promising, but its relationship to organismal variables such as metabolic rate and water intake have not been validated. Here, we continuously measured oxygen influxes and effluxes of captive deer mice (Peromyscus maniculatus), and manipulated their water intake and metabolic rate. We used …


Hair Growth Rate Estimation In North American Ursids, Jennifer H. Stern, Karyn D. Rode, Craig A. Stricker, Sheriden Ploof, Cindy L. J. Roberts, Celess Edinger, Mary Humbyrd, Nate Wagner, Megan A. Owen, John P. Whiteman, Thea Bechshoft, Brent White, Kristin L. Laidre Jan 2025

Hair Growth Rate Estimation In North American Ursids, Jennifer H. Stern, Karyn D. Rode, Craig A. Stricker, Sheriden Ploof, Cindy L. J. Roberts, Celess Edinger, Mary Humbyrd, Nate Wagner, Megan A. Owen, John P. Whiteman, Thea Bechshoft, Brent White, Kristin L. Laidre

Biological Sciences Faculty Publications

The feeding ecology of wildlife populations has important implications for individual health, population productivity and distribution patterns. For ursids (bears), food resources and feeding behaviour primarily affect population dynamics via effects on cub production and survival. Much of what is known about the feeding ecology of bears is based on analyses of tissues collected from capture-based research efforts, harvested animals or non-invasive approaches. However, inference about diet from hair has been limited by a lack of quantitative data on the timing of the moult and hair growth rates. We conducted a study to develop and test two methods of quantifying …


Future-Oriented Coastal Protection: The Utility Of Living Shorelines Under Changing Climatic Conditions, Gabriella R. Dipetto, Donna Marie Bilkovic, Taylor M. Sloey, Erik S. Yando, Erik L. Walters Jan 2025

Future-Oriented Coastal Protection: The Utility Of Living Shorelines Under Changing Climatic Conditions, Gabriella R. Dipetto, Donna Marie Bilkovic, Taylor M. Sloey, Erik S. Yando, Erik L. Walters

Biological Sciences Faculty Publications

An accumulation of novel nature-based shoreline management techniques have developed over the past two decades out of the continued need to protect waterfront land combined with an awareness of the relationship between healthy coastal ecosystems and human societies. Shoreline protection strategies such as living shorelines incorporate these nature-based approaches to simultaneously enhance ecosystem functioning while providing shoreline stabilization benefits. The continued role of these approaches into the future, however, will be challenged by a rapidly changing coastal environment. While living shorelines have received global attention and integration into climate policy and governance frameworks, the ability of shoreline systems to withstand …


The Pluralistic Natural Capital Values Of A Tropical City, Adrienne Grêt-Regamey, Justine Saunders, Peter Edwards, Daniel Richards, Jahson I. Alemu, Natasha Bhatia, Roman Carrasco, Zuzana Drillet, Tze Kwan Fung, Yan Feng Leon Gaw, Wanggi Jaung, Andrea Law, Rachel Ai Ting Leong, Aikeen Youu Ming Lim, Mahyar Masoudi, Yudhishthra Nathan, Rachel Rui Ying Oh, Wen Ting Ooi, Fairul Edros Ahmad Shaikh Shaikh, Xiao Ping Song, Claudia L.Y. Tan, Puay Yok Tan, Sergio Wicki, Lynn-Wei Wong, Yanyun Yan, Erik Yando, Alex Thiam Koon Yee, Jingyuan Zhang, Daniel A. Friess Jan 2025

The Pluralistic Natural Capital Values Of A Tropical City, Adrienne Grêt-Regamey, Justine Saunders, Peter Edwards, Daniel Richards, Jahson I. Alemu, Natasha Bhatia, Roman Carrasco, Zuzana Drillet, Tze Kwan Fung, Yan Feng Leon Gaw, Wanggi Jaung, Andrea Law, Rachel Ai Ting Leong, Aikeen Youu Ming Lim, Mahyar Masoudi, Yudhishthra Nathan, Rachel Rui Ying Oh, Wen Ting Ooi, Fairul Edros Ahmad Shaikh Shaikh, Xiao Ping Song, Claudia L.Y. Tan, Puay Yok Tan, Sergio Wicki, Lynn-Wei Wong, Yanyun Yan, Erik Yando, Alex Thiam Koon Yee, Jingyuan Zhang, Daniel A. Friess

Biological Sciences Faculty Publications

Nature in cities is essential for human well-being. Quantifying and valuing the goods and services provided by nature to city dwellers is missing in tropical contexts. Yet, as cities worldwide face similar challenges, understanding the services provided by tropical urban ecosystems becomes imperative for effective management. Here, we present the first Natural Capital Assessment of a tropical city, unveiling three critical insights. Firstly, we demonstrate the vital reliance of a developed tropical city on nature, particularly for climate change mitigation through regulating services. Secondly, we identify intact natural areas as Singapore’s most valuable assets, stressing the significance of the quality …


The Association Between Food Benefit Online Ordering And Redemptions: Evidence From The Special Supplemental Nutrition Program For Women, Infants, And Children, Junzhou Zhang, Chuanyi Tang, Kayoung Park, Qi Zhang Jan 2025

The Association Between Food Benefit Online Ordering And Redemptions: Evidence From The Special Supplemental Nutrition Program For Women, Infants, And Children, Junzhou Zhang, Chuanyi Tang, Kayoung Park, Qi Zhang

Marketing Faculty Publications

Objective:

To examine how the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) online food benefit ordering could influence WIC benefit redemptions.

Design:

A cross-sectional study. We compare the average redemption rates between online ordering early adopters and non-adopters among WIC customers before and after implementing WIC online ordering. A propensity score-weighted difference-in-difference model was used to estimate the coefficients.

Setting:

The Oklahoma WIC programme and a grocery store chain in Oklahoma.

Participants:

12743 Oklahoma WIC households that had redeemed their food benefits at the grocery store chain in 2020.

Results:

WIC online ordering significantly positively affected redemption …


Emerging Nanotechnology Approaches For Blood Disorders: A Comprehensive Review Of Nano-Hematinics And Plant-Based Nanomedicines, Hassan Abdulsalam Adewuyi, Khairat Shamsudeen, Fatima Mahmoud Muhammad, Adeola Kolawole Victor, Sakariyau Adio Waheed, Adepeju Matilda Adekoya, Kashim Ibrahim Muhammad, Blessing Temitayo Longe, Abdulgaffar Abdulquddus Jan 2025

Emerging Nanotechnology Approaches For Blood Disorders: A Comprehensive Review Of Nano-Hematinics And Plant-Based Nanomedicines, Hassan Abdulsalam Adewuyi, Khairat Shamsudeen, Fatima Mahmoud Muhammad, Adeola Kolawole Victor, Sakariyau Adio Waheed, Adepeju Matilda Adekoya, Kashim Ibrahim Muhammad, Blessing Temitayo Longe, Abdulgaffar Abdulquddus

Chemistry & Biochemistry Faculty Publications

Background: Disorders affecting blood components, such as anemia, coagulopathies, and hematologic malignancies, continue to pose significant global health burdens. Traditional therapies often fall short due to adverse effects, limited bioavailability, and insufficient targeting of disease sites.

Objective: This review synthesizes current advances in nano-hematinics and plant-based nanomedicines (phyto-nanomedicines) as innovative strategies for managing blood-related conditions. These nanoscale interventions are designed to enhance therapeutic precision, bioactivity, and safety.

Methods: A systematic review was conducted using major scientific databases including PubMed, Scopus, Web of Science, and ScienceDirect. Search terms were carefully selected to retrieve literature published between 2015 and 2024 that discussed …


Oxidation Camouflages Terrestrial Organic Matter To Appear Marine-Like, Aleksandar I. Goranov, Susan J. Carter, Ann Pearson, Patrick G. Hatcher Jan 2025

Oxidation Camouflages Terrestrial Organic Matter To Appear Marine-Like, Aleksandar I. Goranov, Susan J. Carter, Ann Pearson, Patrick G. Hatcher

Chemistry & Biochemistry Faculty Publications

The export of terrestrial organic matter (TOM) to the ocean has been traditionally viewed to be minimal or only of significance in near-coastal continental margins. The broadly accepted explanation for the widespread loss of terrestrial lignin biomarkers and apparent disappearance of the <-25‰ stable carbon isotopic signature (δ¹³C) of TOM is that TOM is almost fully degraded before reaching the open ocean. Oceanic carbon (δ¹³C value ≥ -22‰) is therefore thought to be derived primarily from algae. However, an alternative explanation for the different molecular and δ¹³C signatures in terrestrial and marine environments may be that oxidative processing transforms TOM to appear marine-like. To test this hypothesis, we subjected eight TOM samples to a strong oxidation gradient. At carbon losses typical of TOM degradation during transport and sedimentation (above 60%), the differentiators of provenance disappeared, leaving a residue that was marine-like both chemically (aliphatic- and nitrogen-rich) and isotopically (δ¹³C enrichment of 4 to 9‰). This challenges the validity of conventional two-endmember mixing models, suggesting that a much larger fraction than previously estimated of the organic matter found in the ocean may originate from terrestrial sources, impacting global models of carbon cycling and sequestration.


Amphiphilic Tripodal Metalloligands: Synthesis, Coordination Chemistry And Preliminary Catalysis, Austin W. Medley, Paul D. Miller, Craig A. Bayse, Robert D. Pike, Trandon A. Bender Jan 2025

Amphiphilic Tripodal Metalloligands: Synthesis, Coordination Chemistry And Preliminary Catalysis, Austin W. Medley, Paul D. Miller, Craig A. Bayse, Robert D. Pike, Trandon A. Bender

Chemistry & Biochemistry Faculty Publications

Triscatecholate binding has been widely studied in the context of biological systems, supramolecular chemistry, and weak aggregate interactions. However, the utilization of the triscatecholate binding motif for the preparation of metalloligands remains unexplored. Herein, we report the synthesis, structural characterization, and functional studies of a triscatecholate ligand with an appended pyridyl residue as a candidate for such applications. Our findings reveal that the selective formation of cis-triscatecholate-based metalloligands is influenced by electronic effects on the catecholate anions, enabling the targeted synthesis of Al(III), Ga(III), and In(III) triscatecholate metalloligands capable of binding Zn(II) and Ru(II) at the appended pyridyl moiety for …


Twenty Years Of Global Stratospheric Fluorine Inventories From Atmospheric Chemistry Experiment Fourier Transform Spectrometer (Ace-Fts) Measurements, N. Raymond, P. Bernath, C. Boone, M. Chipperfield Jan 2025

Twenty Years Of Global Stratospheric Fluorine Inventories From Atmospheric Chemistry Experiment Fourier Transform Spectrometer (Ace-Fts) Measurements, N. Raymond, P. Bernath, C. Boone, M. Chipperfield

Chemistry & Biochemistry Faculty Publications

We present fluorine inventories calculated for twenty years (2004–2023) and five latitude bands (82°–60°N, 60°–30°N, 30°N–30°S, 30°–60°S, and 60°–82°S) at altitudes from the surface up to 55 km. The inventories were calculated using the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE‐FTS) version 5.2 retrievals of the volume mixing ratios (VMRs) of 15 fluorine‐containing species. Of these 15 species, 3 are product gases: HF, COF₂, COCIF, and 12 are source gases: SF₆, PFC-14 (CF₄), CFC-11 (CCl₃F), CFC-12 (CCl₂F₂), CFC-113 (CCIF₂CCl₂F), HCFC-22 (CHF₂CL), HCFC-141b(C₂H₃Cl₂F), HCFC-142b ( …


[Review Of The Book America's Black Capital: How African Americans Remade Atlanta In The Shadow Of The Confederacy, By J. O. G. Ogbar]., Marvin T. Chiles Jan 2025

[Review Of The Book America's Black Capital: How African Americans Remade Atlanta In The Shadow Of The Confederacy, By J. O. G. Ogbar]., Marvin T. Chiles

History Faculty Publications

[Introduction] Since the mid-twentieth century, Atlanta has occupied a special place in American culture. From entertainment to industry to politics, Atlanta is one of the few places in America where what happens locally matters nationally. As a results, Atlanta has occupied an outsized space in African American, civil rights, and southern historical literature, leading to its own subgenre that can be called Atlanta studies. The historiography, including notable volumes such as Ronald H. Bayor's Race and the Shaping of Twentieth-Century Atlanta (Chapel Hill, 1996), Kevin M. Krusc's White Flight: Atlanta and the Making of Modern Conservatism (Princeton, 2005), Tomiko Brown-Nagin's …


[Review Of The Book Closed Seasons: The Transformation Of Hunting In The Modern South, By J. Brock]., Tracy L. Barnett Jan 2025

[Review Of The Book Closed Seasons: The Transformation Of Hunting In The Modern South, By J. Brock]., Tracy L. Barnett

History Faculty Publications

[Introduction] The hunt has long occupied a central place in southern lore and literature. For generations, fathers and grandfathers initiated their sons into its rituals, teaching them to steady a rifle, bait a hook, and cast a line. In the twentieth century, William Faulkner and other writers elevated this long-held tradition into mythology, evoking both the exhilaration of the chase and the gothic romance of Mississippi’s pine forests. And, today, around 5.3 million southerners (of all races and genders) hold hunting licenses and organize their calendars around the season’s rhythms and associated social gatherings. Focusing on the Deep South states …


A Forgotten Piece Of History: The Story Of The First Municipal Council Of Colombo, Sri Lanka, Chandra Richard De Silva Jan 2025

A Forgotten Piece Of History: The Story Of The First Municipal Council Of Colombo, Sri Lanka, Chandra Richard De Silva

History Faculty Publications

The website of the Municipal Council of Colombo asserts that it was founded in 1865 (Colombo Municipal Council, 2015). This is also the story that is recounted in scholarly histories of Colombo, in modern websites and in popular accounts of the history of the city. The objective of this article is to demonstrate that Colombo had a municipal council as early as the sixteenth century and to illuminate the story of its existence for over 70 years - until well into the seventeenth century. It also explores the functions of the council, its relationship with Portuguese officials who ruled the …


Robust And Efficient Methods For Key Generation Using Chaotic Maps And A2c Algorithm, Ali A. Mahdi, Mays M. Hoobi Jan 2025

Robust And Efficient Methods For Key Generation Using Chaotic Maps And A2c Algorithm, Ali A. Mahdi, Mays M. Hoobi

Mesopotamian Journal of CyberSecurity

In the current digital landscape, information security has become a critical necessity given the escalating frequency and sophistication of cyberattacks across global computing networks. Cryptography is the science and practice of securing information by transforming it into a format that is unreadable or inaccessible to unauthorized parties. The strength of the cryptography algorithm lies in the strength of used encryption key. Recently, the nonlinear behavior of chaotic maps has been utilized as a random source to generate robust key stream bits for cryptographic purposes. The aim of this paper is to introduce an efficient and robust system for generating strong …


Constitutionalism And Peacemaking: Comparative Perspectives, Ruti G. Teitel Jan 2025

Constitutionalism And Peacemaking: Comparative Perspectives, Ruti G. Teitel

Articles & Chapters

This chapter addresses the relationship of constitutionalism in periods of political transition. Comparative analysis of a number of case studies points to a dynamic relationship whereby constitutional change can lead political change; whereas, in others, political transformation precedes constitutional change and involves institutions of constitutional interpretation. Constitutional courts have played important interpretive roles in this project, often supporting transitional projects of peacemaking and transformative politics with enduring constitutional values. Moreover, these constitutional moments are tied to distinctive understandings of peace and transitional justice.


The Effect Of Need For Closure, Gender Essentialism, And Contact On Transphobia, Jacob E. Vargas Jan 2025

The Effect Of Need For Closure, Gender Essentialism, And Contact On Transphobia, Jacob E. Vargas

College of Education and Human Sciences: Dissertations, Theses, and Student Research

Using a motivated social cognition framework, this study explores whether there is an indirect effect of need for closure on transphobia via gender essentialism and whether this relationship is moderated by transgender contact. Data were collected from an undergraduate sample of 405 cisgender participants (nmen = 159, nwomen = 246). A simple mediation and a moderated mediation were used to examine the hypothesized relationships, controlling for participant gender. Results reinforced the positive correlation between gender essentialism and transphobia and the negative correlation between transgender contact and transphobia. However, the mediation and moderation hypotheses were not supported. Need …


Experimental Evaluation Of Corrosion Of Strands And Wires To Estimate Corrosion Rate In Grout And Concrete, Dipendra Shrestha Jan 2025

Experimental Evaluation Of Corrosion Of Strands And Wires To Estimate Corrosion Rate In Grout And Concrete, Dipendra Shrestha

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Premature failure of prestressed and post-tensioned concrete structures is frequently caused by undetected corrosion of prestressing steel. Although extensive research has addressed corrosion rates in conventionally reinforced concrete, the interpretation of non-destructive parameters, such as half-cell potential (HCP) and concrete/grout resistivity, for estimating corrosion rates in prestressing steel are not adequately investigated.

This research experimentally evaluates chloride-induced corrosion of prestressing steels to establish material-specific relationships between in-situ measurable parameters and corrosion rate. Thirty-six macrocell specimens incorporating plain wires, indented wires, and seven-wire strands in structural concrete and commercial post-tensioning grout- half with pre-formed surface cracks, were subjected to accelerated cyclic …


Beyond Being Famous For Being Famous: A Phenomenological Approach To Understand The Leadership Of Kim Kardashian, Kelli Britten Jan 2025

Beyond Being Famous For Being Famous: A Phenomenological Approach To Understand The Leadership Of Kim Kardashian, Kelli Britten

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This phenomenological study explores the meaning of the influence of Kim Kardashian on millennial women based on their followership on social media platforms, exploring the intersection of leadership studies, celebrity capital, and popular culture. Social media has democratized influence and transformed power dynamics through access and immediacy of information allowing the celebrity-turned-influencer-turned leader Kim Kardashian to build a billion-dollar empire spanning entertainment, and the media, beauty, fashion, and retail industries. Through qualitative interviews and analysis with 11 millennial women, this research sought to understand the meaning of her influence in their lives.

Explored through the theoretical frameworks of French and …


Examining Trauma And Substance Use Co-Morbidity In African Americans, Breanne Maray Sande Russell Jan 2025

Examining Trauma And Substance Use Co-Morbidity In African Americans, Breanne Maray Sande Russell

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

Childhood maltreatment (CM) is a profound public health crisis that significantly elevates the risk for substance use disorders (SUDs), including alcohol and opioid misuse. Adolescents exposed to CM are especially vulnerable, often turning to substances as maladaptive coping mechanisms during critical developmental periods. African American youth bear this disproportionate burden, yet research addressing their unique experiences remains strikingly limited. Furthermore, while the co-occurrence of trauma-related disorders and substance use is well documented, racial and ethnic minority groups continue to be underrepresented in this literature. Emotion regulation difficulties are increasingly recognized as a mechanism linking PTSD symptoms with substance use, yet …


Echo Chambers On The Left, Echo Chambers On The Right: How Socioideological Identity Emotion Shape Social Interaction Behavior On Social Media, Dean Carl Jackson Jan 2025

Echo Chambers On The Left, Echo Chambers On The Right: How Socioideological Identity Emotion Shape Social Interaction Behavior On Social Media, Dean Carl Jackson

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation investigates how echo chambers emerge on social media by shifting the lens from aggregate patterns of information exposure to moment-by-moment, individual level interaction decisions between peers. I theorize that selective exposure online is not only about what content people consume or avoid, but also about selective social exposure—accepting, rejecting, or sharing with the sources of that content—guided by sociopolitical identity, ideological distance (ID), and discrete emotions. To test this, I employ two survey experiments using real tweets varying in ideological extremity and measure user’s likelihood to Block, Follow, Retweet, or reply, alongside self-reported emotional reactions and ID between …


Robust Quantification Of Cortical Hemodynamic Response To Tactile Stimulation: A Comprehensive Fnirs Methodology To Mitigate Physiological Confounds, Mohsen Hozan Jan 2025

Robust Quantification Of Cortical Hemodynamic Response To Tactile Stimulation: A Comprehensive Fnirs Methodology To Mitigate Physiological Confounds, Mohsen Hozan

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation establishes a quantitative framework for studying somatosensory processing using functional Near-Infrared Spectroscopy (fNIRS), with a focus on applications in neurorehabilitation. The central aim is to investigate how the brain's hemodynamic response is modulated by the velocity of patterned tactile stimulation. While fNIRS is a promising neuroimaging tool, its data quality is often compromised by physiological noise and motion artifacts, challenging the reliability of its findings and hindering the development of effective, quantifiable neurotherapeutics.

Two preliminary investigations informed the final experimental design. The first pilot study confirmed that pneumotactile stimulation of the hand, during both passive (somatosensory) and active …


Fire History, Ecological History, And Historical Human-Environment Interactions In The Northern Great Plains, James Victor Benes Jan 2025

Fire History, Ecological History, And Historical Human-Environment Interactions In The Northern Great Plains, James Victor Benes

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

This dissertation explores the spatiotemporal signatures of fire in North American grassland ecosystems. In three chapters, I explore different aspects of fire history in the northern Great Plains. Chapter 1 is an introduction. Chapter 2 focuses on the Euro-American Settlement Period (ca. 1850–1950 C.E.). Fire histories from six different lakes in the Nebraska Sandhills are compared with two periods of historic drought and the establishment of United States Post Offices. Five of the six records show increased levels of biomass burning during the initial phases of Euro-American Settlement. Chapter 3 is a long-term (ca. 15,000 years), high-resolution fire history and …


Exploring Factors Influencing Student Growth In Mathematics: Elementary Teacher Instructional Practices, Beliefs, And Professional Development Experiences, Marni E. Driessen Jan 2025

Exploring Factors Influencing Student Growth In Mathematics: Elementary Teacher Instructional Practices, Beliefs, And Professional Development Experiences, Marni E. Driessen

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

High-quality student learning experiences in mathematics rely on effective teaching. This mixed methods study investigates how elementary teachers’ instructional practices, beliefs about mathematics teaching and learning, and professional development experiences relate to student mathematics growth in a large urban district. Quantitative survey data were analyzed to examine relationships among these factors and student growth outcomes, while qualitative data complemented and deepened the measurable findings. This study builds on prior research on instructional practices and professional development effectiveness by integrating constructs typically examined separately and identifying multiple teacher-related factors that distinguish classrooms with high student growth from those with low growth. …


Boston Scientific Strategic Audit, John Trilling, Carly Gorter, Anna Coffey, Leo Ray Jan 2025

Boston Scientific Strategic Audit, John Trilling, Carly Gorter, Anna Coffey, Leo Ray

Honors Program: Senior Projects (Public)

Boston Scientific had a strong 2023, achieving 13.6% organic growth, $1.208 billion in profit, and maintaining a focus on employee satisfaction and sustainability. Recognized as a top workplace and leading innovator, the company is well-positioned for continued success. Its competitive edge stems from four key strengths. First, its top-tier innovation, driven by strong R&D investment, reinforces its credibility and specialization. Second, its skilled workforce accelerates product development. Third, its deep product lines foster extensive industry knowledge and creativity. Lastly, its logistical capabilities and strategic acquisitions have built a specialized, dominant portfolio. With a focused differentiation strategy, Boston Scientific competes with …


“Knowledge And Attitude Towards Ect Among The Caregivers Of Patients In A Tertiary Mental Health Care Setting”., Kajusree Borah, Arunjyoti Baruah Dr, Sandeep Kollipara Jan 2025

“Knowledge And Attitude Towards Ect Among The Caregivers Of Patients In A Tertiary Mental Health Care Setting”., Kajusree Borah, Arunjyoti Baruah Dr, Sandeep Kollipara

Manipal Journal of Nursing and Health Sciences

Background: Caregivers play an important role in shaping patients’ experiences with ECT. Despite evidence that ECT is an effective and safe treatment, certain factors, such as social stigma, inadequate knowledge, doubt about efficacy, and safety, have limited its use. With adequate knowledge, information, and understanding caregiver, as well as the patient, will develop a positive attitude towards it simultaneously. Aim: To assess the correlation of knowledge and attitude towards ECT among the caregivers of patients in a tertiary mental health care setting. Methodology: This study employed a descriptive correlational research design, conducted within a tertiary mental health care setting. …


People Living ‘Well’ With Dementia ― Are They Truly Living Well?, Seelia Peter A, Elsa Sanatombi Devi, Rajeshkrishna Bhandary P Jan 2025

People Living ‘Well’ With Dementia ― Are They Truly Living Well?, Seelia Peter A, Elsa Sanatombi Devi, Rajeshkrishna Bhandary P

Manipal Journal of Nursing and Health Sciences

No abstract for this article type