Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (3811)
- Physical Sciences and Mathematics (2484)
- Social and Behavioral Sciences (2257)
- Engineering (1956)
- Medicine and Health Sciences (1947)
-
- Education (1402)
- Psychology (1169)
- Arts and Humanities (990)
- Biology (868)
- Chemistry (830)
- Biochemistry, Biophysics, and Structural Biology (663)
- Computer Sciences (427)
- Sociology (404)
- Biochemistry (381)
- Animal Sciences (368)
- Public Health (357)
- Biomedical Engineering and Bioengineering (355)
- Environmental Sciences (316)
- Electrical and Computer Engineering (304)
- Medical Sciences (300)
- Mechanical Engineering (273)
- Pharmacy and Pharmaceutical Sciences (273)
- Plant Sciences (264)
- Clinical Psychology (259)
- Civil and Environmental Engineering (256)
- Earth Sciences (247)
- Physiology (247)
- Ecology and Evolutionary Biology (234)
- Microbiology (233)
- Cell and Developmental Biology (224)
- Institution
-
- Virginia Commonwealth University (3244)
- University of North Dakota (2979)
- Brigham Young University (2820)
- Mississippi State University (2604)
- University of South Carolina (1840)
-
- Air Force Institute of Technology (922)
- Rowan University (757)
- University of Texas Rio Grande Valley (703)
- American University in Cairo (608)
- Illinois State University (570)
- Florida Institute of Technology (469)
- University of Arkansas Little Rock (449)
- Pepperdine University (402)
- City University of New York (CUNY) (378)
- St. John's University (327)
- Columbus State University (185)
- Nova Southeastern University (143)
- SASTRA Deemed to be University (103)
- Texas A&M International University (78)
- University for Business and Technology in Kosovo (54)
- UAlaska System (2)
- CentraCare Health (1)
- Louisiana Tech University (1)
- Southern Methodist University (1)
- Keyword
-
- Education (153)
- Cancer (150)
- Gender (134)
- Depression (119)
- Dissertations (PsyD) -- Psychology (109)
-
- Machine learning (109)
- North Dakota (104)
- Inflammation (85)
- Autism (81)
- Biological sciences (79)
- Mental health (78)
- Dissertations (EdD) -- Organizational leadership (77)
- Stress (77)
- Utah (74)
- Women (74)
- United States (71)
- Obesity (67)
- Nanoparticles (65)
- Ecology (63)
- Trauma (63)
- Anxiety (61)
- Leadership (61)
- Apoptosis (60)
- Adolescents (59)
- Mitochondria (57)
- Proteomics (56)
- Development (55)
- Behavior (54)
- Breast cancer (54)
- Machine Learning (54)
- Publication Year
- File Type
Articles 7411 - 7440 of 19640
Full-Text Articles in Entire DC Network
Establishing And Evaluating Agricultural Plantings And Supplemental Cover On Reservoir Mudflats As A Means To Increase Juvenile Game Fish Abundance And Growth, Hunter R. Hatcher
Establishing And Evaluating Agricultural Plantings And Supplemental Cover On Reservoir Mudflats As A Means To Increase Juvenile Game Fish Abundance And Growth, Hunter R. Hatcher
Theses and Dissertations
Reservoirs throughout the country exhibit degraded shorelines and simplified littoral habitats because of aging. This study evaluated the establishment of agricultural plantings on reservoir mudflats and the effectiveness of supplemental brush pile structures in providing recruitment habitat for juvenile fish. The mudflats of Enid Reservoir, Mississippi were seeded during the winter drawdown in October of 2016 and 2017 with agricultural plantings. Monitoring of plantings found grasses performed best in terms of establishment and providing potential fish habitat. During Summer 2017 brush piles and control sites, without brush, were sampled in Enid Reservoir using rotenone to evaluate juvenile fish use. Juvenile …
Behavioral Deficits And Associated Alterations In The Proteome In The Amygdala Of Adolescent Rats Exposed To Delta9-Tetrahydrocannabinol As Juveniles, Afzaal Nadeem Mohammed
Behavioral Deficits And Associated Alterations In The Proteome In The Amygdala Of Adolescent Rats Exposed To Delta9-Tetrahydrocannabinol As Juveniles, Afzaal Nadeem Mohammed
Theses and Dissertations
Delta9-tetrahydrocannabinol (THC) is an active component of marijuana. During recent years, the popularity of marijuana in the United States has increased tremendously. Marijuana edibles are a form of marijuana that has become very popular in recent years. These are easily accessible not only to adolescents but also to young children. According to recent statistical data, the consumption of marijuana edibles by children below the age of 5 has increased 600% in the states that have legalized marijuana. This has led to an adverse impact on children’s health as evidenced by a sudden increase in the number of children seeking emergency …
Characterization Of Mutations In The Receptor Binding Site Of Influenza A Viruses Determining Virus Host, Tissue, And Cell Tropisms Using Systems Biology Approaches, Feng Wen
Theses and Dissertations
Influenza A viruses (IAVs) cause occasional pandemics and seasonal epidemics, thus presenting continuous challenges to public health. Vaccination is the primary strategy for the prevention and control of influenza outbreaks. The antigenicity matched high-yield seed strain is critical for the success of influenza vaccine. Currently, there are several limitations for the influenza vaccine manufacture: 1) the conventional methods for generating such strains are time consuming; 2) egg-based vaccines, the predominant production platform, have several disadvantages including the emergence of viral antigenic variants that can be induced during egg passage; 3) vaccine seed viruses often do not grow efficiently in mammalian …
Chloroplast Development And Cytokinin And Gibberellin Effects On Ivy Geranium Under Heat Stress, Callie J. Morris
Chloroplast Development And Cytokinin And Gibberellin Effects On Ivy Geranium Under Heat Stress, Callie J. Morris
Theses and Dissertations
Developing foliar growth of ivy geraniums (Pelargonium peltatum) bleaches white after exposure to temperatures greater than 30°C. This study investigated chloroplast development in ivy geraniums under heat stress comparing a heat sensitive cultivar, Temprano™ Lavender, and a heat tolerant cultivar, Contessa™ Red. Using transmission electron microscopy and spectrophotometry, foliar bleaching under heat stress was found to be due to an absence of developed chloroplasts within the bleached new growth accompanied by lower chlorophyll content. To determine whether heat stress related foliar bleaching could be prevented, cytokinin and gibberellins were applied in combination, at different rates before, during or after a …
A Functional Developmental Genomics Analysis Of Rin4 And Exocyst Genes As They Relate To Glycine Max Defense To The Plant Parasitic Nematode Heterodera Glycines Infection, Keshav Sharma
Theses and Dissertations
The initial interaction of vesicle and the target membrane prior to their fusion is called vesicle tethering, a process mediated by an octameric protein complex called the exocyst. The exocyst connects vesicles and binds them to phosphatidylinositol 4, 5-biphosphate (PI (4,5) P2), located on the plasma membrane. The exocyst complex is located at the target site, helping to prepare the soluble N-ethylmaleimide-sensitive fusion protein attachment protein (SNAP) receptor (SNARE) for docking and subsequent release of vesicular contents after fusion. The importance of the exocyst in cellular processes is inevitable since it performs central roles in exocytosis thereby inducing SNARE-mediated membrane …
Ab Initio Molecular Dynamics Simulations To Understand Speciation And Solvation Structure Of Common Herbicides, Zachary W. Windom
Ab Initio Molecular Dynamics Simulations To Understand Speciation And Solvation Structure Of Common Herbicides, Zachary W. Windom
Theses and Dissertations
The application of commercial herbicide restricts weed growth and significantly improves control over crop vitality and yield. Despite their utility in the agriculture sector, herbicides have the potential to contaminate local water sources. To minimize environmental impacts, the development of efficient separation processes to clean-up contaminated water bodies is necessary. However, complex speciation and conformational flexibility in the condensed phase poses a significant challenge. In this work, we investigate structure and speciation of three common organic herbicides (glyphosate, atrazine, and metolachlor) in aqueous solution. We employ the PBE-D3 density functional to perform ab initio molecular dynamics (MD) simulations in the …
The Effect Of Bacterial Supplementation On Black Soldier Fly Larval Growth And Development, Emilia Marjatta Kooienga
The Effect Of Bacterial Supplementation On Black Soldier Fly Larval Growth And Development, Emilia Marjatta Kooienga
Theses and Dissertations
With a growing human population, food insecurity is becoming a worldwide problem. As the search for sustainable sources of protein continues, black soldier fly larvae come to the forefront as a partial solution. Full of proteins and fats, the larvae will consume most organic matter and rapidly develop into a usable form. Supplementing black soldier fly larvae with oleaginous microbes Arthrobacter AK19 and Rhodococcus rhodochrous increases their body size by 25%, potentially accelerates their development by one day, and increases their conversion efficiency. Supplementing with Bifidobacterium breve decreased body size, slowed development, and decreased conversion efficiency, underscoring the importance of …
Quantifying Pre-Industrial To Mid-Late 20th Century Anthropogenic Lead, Mercury And Cadmium Pollution In Caribbean Marine Environments Using Skeletonized Sea Turtle Remains, Felicia L. Pena
Theses and Dissertations
Various lines of evidence indicate that levels of anthropogenic pollutants, such as lead, mercury and cadmium, have increased in terrestrial and atmospheric environments since the early 19th century and the advent of industrialization. While the exposure to these three trace elements is a global concern, this study focused primarily on marine environments located throughout the Caribbean. Using ICP-MS, this study aimed to detect and quantify anthropogenic pollutants, specifically lead (Pb), mercury (Hg) and cadmium (Cd), using skeletonized remains of sea turtles as biological proxies for environmental quality. Archaeologically derived (n=5) and mid-late 20th century (n=6) Hawksbill and Green turtles were …
Refining Spawning Protocols For Crappie, Christian A. Shirley
Refining Spawning Protocols For Crappie, Christian A. Shirley
Theses and Dissertations
White Crappie (Pomoxis annularis) and Black Crappie (P. nigromaculatus) are popular North American gamefish; however, frequent fluctuations in year class strength present a management challenge for recreational fisheries. Intensive aquaculture production has the potential to address this challenge through controlled hatchery reproduction for supplemental stocking, but further study is needed to refine and optimize techniques. Therefore, this study evaluated the effects of hormone injection timing on latency period and spawning success, examined effective cryopreservation techniques for black-stripe Black Crappie sperm (a preferred hatchery phenotype), and compared simulated spring duration on out-of-season spawning success. Latency period for White Crappie did not …
Removal Of Dietary Antimicrobials And Effects Of Their Replacement With Bacillus Subtilis On The Growth And Intestinal Health Of Male Broilers, Kacey O'Donnell
Removal Of Dietary Antimicrobials And Effects Of Their Replacement With Bacillus Subtilis On The Growth And Intestinal Health Of Male Broilers, Kacey O'Donnell
Theses and Dissertations
The effects of dietary antimicrobial removal and Bacillus subtilis supplementation on the growth and intestinal health of male broilers were investigated. Birds were fed either a control, antimicrobial, or a B. subtilis probiotic diet at different feeding phases. Birds were challenged with a 10 × dose of a coccidiosis vaccine. Supplementation of B. subtilis in for antimicrobials in the late grower and early finisher phases improved growth similar to birds fed antimicrobials until withdrawal, while antimicrobial removal without B. subtilis supplementation in those periods hindered growth. The improved growth suggests that the probiotic was able to alleviate the stress of …
Revision Of The Subgenus Prionus (Neopolyarthron) Semenov (Coleoptera: Cerambycidae: Prioninae) In North America, With Notes On Prionus (Antennalia) Casey, Terence L. Schiefer
Revision Of The Subgenus Prionus (Neopolyarthron) Semenov (Coleoptera: Cerambycidae: Prioninae) In North America, With Notes On Prionus (Antennalia) Casey, Terence L. Schiefer
Theses and Dissertations
The classification of North American species of Prionus (Prionus) Geoffroy is reevaluated, with three subgenera recognized: P. (Antennalia) Casey, revived status, P. (Neopolyarthron) Semenov, revived status, and P. (Prionus). Prionus (Neopolyarthron) is revised and consists of P. imbricornis (Linnaeus), P. debilis Casey, revived status, and P. cuneatus Casey, revived status, with the latter two species removed from synonymy with P. imbricornis. Prionus robustus Casey, new synonymy, and P. fissicornis parviceps Casey, revised synonymy, are transferred from synonymy with P. imbricornis to synonymy with P. cuneatus and P. fissicornis respectively. Keys to North American subgenera of Prionus and to species of …
Scaling Undergraduate Scientific Writing Via Prominent Feature Analysis, Katarzyna Zaruska Gallo
Scaling Undergraduate Scientific Writing Via Prominent Feature Analysis, Katarzyna Zaruska Gallo
Theses and Dissertations
Prominent Feature Analysis (PFA) is a reliable and valid writing assessment tool, derived from the writing it is used to assess. PFA, used to assess on-demand expository essays in Grades 3-12, uncovers positive and negative characteristics of a sample. To extend PFA to a new academic level and genre, I assessed scientific writing of 208 undergraduates, identifying 35 linguistic and 20 scientific prominent features. An essay could earn up to 28 positive (24 linguistic and four scientific), and up to 27 negative marks (11 linguistic and 16 scientific). The minimum prominent features number in a paper was 3, the maximum …
Smoke Signals: New Contexts For The Emergence, Spread, And Decline Of Effigy Pipes In Southeastern North America, A.D. 1000-1600, Charles Van De Kree
Smoke Signals: New Contexts For The Emergence, Spread, And Decline Of Effigy Pipes In Southeastern North America, A.D. 1000-1600, Charles Van De Kree
Theses and Dissertations
The cultural significance of effigy pipes among southeastern groups during the Mississippian period (A.D. 1000-1600) has yet to be fully understood. Recent studies, however, have provided new archaeological contexts for framing explanations of their possible use and distribution among such groups. Apart from conjectures about their use as ceremonial objects, selection for effigy pipes in the Mississippian Southeast was directly related to fluctuating environmental and demographic conditions under which such objects were manufactured and distributed. These conditions provided the appropriate context for their emergence as costly signaling devices through which elite or special interest groups advertised fitness levels, typically expressed …
Social Inequality In The Early Bronze Age At Bab Edh-Dhra, Jordan, Natalie Patience
Social Inequality In The Early Bronze Age At Bab Edh-Dhra, Jordan, Natalie Patience
Theses and Dissertations
Bab edh-Dhra is the most extensively excavated cemetery from Early Bronze Age, Jordan. Despite thorough study, the social structure and existence of social inequality remain unclear. This was addressed using osteological evidence of physiological stress to compare between family tombs. In societies exhibiting social inequality, individuals of lower status experience higher levels of stress. Evidence of physiological stress (femoral length, LEH, metabolic disorders, periosteal reactions, cribra orbitalia, and porotic hyperostosis) was recorded using standard methods for 250 adults. The artifact counts in this study have been previously published. Differences in the frequency of stress indicators were compared using chi-square tests. …
Organic And Inorganic Contaminants Removal From Water With Engineered Biochar, Narada Bombuwala Dewage
Organic And Inorganic Contaminants Removal From Water With Engineered Biochar, Narada Bombuwala Dewage
Theses and Dissertations
Water pollution represents one of the major concerns of the modern world, after scientific and industrial development that generates hazardous organic and inorganic contaminants. Biochar (BC) has gained tremendous attention in the past decade as a cheap and efficient adsorbent for organic and inorganic contaminants from aqueous solutions. BC is considered to be a low-cost alternative to activated carbon, however, BC typically suffer performance reductions due to their low surface areas and poor mechanical properties. The main objective of this work is to develop novel biochar materials by modifying the biochar surface for the removal of organic and inorganic contaminants …
Parent And Child Perceived Coping Socialization During Peer Conflict: A Qualitative Study, Janet W. Kwan
Parent And Child Perceived Coping Socialization During Peer Conflict: A Qualitative Study, Janet W. Kwan
Theses and Dissertations
Despite budding research on parent-child discrepant perceptions of a child’s psychosocial functioning, the potential difference in individual perception of coping socialization is unclear. Further, literature suggests the onset of various impulse-control disorders occurs around middle childhood. Thus, the current study used a phenomenological approach and thematic analysis to examine perspectives of coping socialization, identify intended take away messages, and examine the perceived impact of inconsistent understanding of the interaction. Results indicated both parents and children use verbal and physical cues to understand one another during coping socialization and that their lab discussion was representative of their typical interactions. Themes emerged …
Perception And Training Needs Of Mississippi State University Extension Agents And The Level Of Demand They Receive For Information In Organic Agriculture, Thamir Niamah Al-Janabi
Perception And Training Needs Of Mississippi State University Extension Agents And The Level Of Demand They Receive For Information In Organic Agriculture, Thamir Niamah Al-Janabi
Theses and Dissertations
The purpose of this study was to determine perception and training needs of Mississippi State University Extension agents in organic agriculture. The study followed the Borich Needs Assessment Model. Data were collected via Qualtrics. The population of the study was 154 Mississippi State University Extension agents with 77 Extension agents responding to the questionnaire. Most agents were 40 to 49 years old with an almost equal percentage being male and female. The majority of agents (75.3%) had master’s degree. More than one third of the agents indicated the level of demand towards raising livestock organically had stayed the same. Also, …
Drivers Of Wetland Plant Assemblages In The Mississippi River Alluvial Valley, Cory Shoemaker
Drivers Of Wetland Plant Assemblages In The Mississippi River Alluvial Valley, Cory Shoemaker
Theses and Dissertations
Interest in, and rates of, wetland restoration have increased over the past several decades. However, despite proliferations of restored wetlands across the landscape, the structural and functional restoration success of these systems is unclear. Thus, understanding factors and processes that influence wetland characteristics is of considerable interest. This study focuses on herbaceous wetlands in the Mississippi River Alluvial Valley (MAV), a largely agricultural region interspersed with restored and naturally occurring wetlands. Chapter I is an introduction and provides a background to wetlands, wetland ecology, and the current state of wetland restoration in the United States. Chapter II focuses on factors …
Landowner Perceptions Of Oil And Gas Development In Mississippi And Policies Associated With Managing The Industry And Natural Resources, Rachael Carter
Landowner Perceptions Of Oil And Gas Development In Mississippi And Policies Associated With Managing The Industry And Natural Resources, Rachael Carter
Theses and Dissertations
Advances in oil and gas drilling technologies have led to an on-shore shale boom in the United States. This has increased drilling on forest land and conflicts regarding the tradeoffs of this practice. This study examines the forest landowner perspective of oil and gas development on forest land, policies that regulate the industry, opinions of land use tradeoffs, and what influences landowner decision making. This study also examines the balance of power between federal, state, and municipal government regarding the regulation of the oil and gas industry. A systematic random sample of 1200 landowners with more than 10 acres of …
Left Ventricular Hemodynamics With Reduced Ejection Fraction: An In-Vitro Piv Study Using An Implanted Assisting Device, Elizabeth Jermyn
Left Ventricular Hemodynamics With Reduced Ejection Fraction: An In-Vitro Piv Study Using An Implanted Assisting Device, Elizabeth Jermyn
Theses and Dissertations
A left ventricular assist device is a mechanical pump implanted in patients with heart failure that continuously takes blood from the left ventricle and delivers it to the aorta, thus decreasing ventricular load. The device is typically considered as a ‘bridge to transplant’, i.e. as a temporary therapy, and involves several risks. Modified ventricular hemodynamics due to a heart pump implantation is studied in-vitro using an elastic ventricle. The ventricle is incorporated into a pulse duplicator setup, which prescribes realistic pulsatile inflow/outflow to mimic a weak ejection fraction. A continuous axial pump mimics a ventricular assist device and its effect …
Creating New Germplasm To Improve Aflatoxin Resistance In Maize, Oluwaseun Felix Ogunola
Creating New Germplasm To Improve Aflatoxin Resistance In Maize, Oluwaseun Felix Ogunola
Theses and Dissertations
Maize (Zea mays L), the third largest crop produced in the world is susceptible to pre and post contamination of aflatoxin. Aflatoxin is a secondary carcinogenic metabolite produced by Aspergillus flavus, an opportunistic fungus of maize that causes ear-rot and subsequent production of aflatoxin. Host plant resistance is one of the promising long term solution to combat aflatoxin contamination in maize grains. Resistance to aflatoxin is heritable and resistant germplasms that can be used to reduce aflatoxin resistance has been developed. Creating quantitative trait loci (QTL) mapping populations to identify regions within maize chromosomes contributing to aflatoxin resistance help identify …
Development And Validation Of Urine Hormones By Lc-Ms/Ms Using The Boreal Toad (Anaxyrus Boreas Boreas) As A Model Species, Ashley Nicole Meredith
Development And Validation Of Urine Hormones By Lc-Ms/Ms Using The Boreal Toad (Anaxyrus Boreas Boreas) As A Model Species, Ashley Nicole Meredith
Theses and Dissertations
Analysis of urinary hormone levels can be used to identify sex and breeding patterns in amphibians. This is especially important for ensuring the survival of endangered species. The most common way to determine hormone levels is enzyme-linked immunosorbent assay (ELISA); however, there is the possibility of cross-reactivity with this technique, and only one hormone can be monitored per plate, limiting efficiency. In this study, the effectiveness of liquid chromatography coupled to mass spectrometry (LC-MS/MS) was evaluated in terms of sensitivity, repeatability, and through-put in monitoring hormone levels in Anaxyrus boreas boreas (boreal toads). Urine samples were collected from ten different …
Development Of A Nanofluid Simulation Platform, Jabrane Nachit
Development Of A Nanofluid Simulation Platform, Jabrane Nachit
Theses and Dissertations
Nanoluids are colloidal solutions made up of particles of the nanometric scale suspended in a fluid. This type of solution has widespread great interest since the discovery of their particular properties. The Poisson-Nernst Planck system of equations (PNP) is one of the known models for the description of ion transport. This thesis aims to develop a method to solve the PNP equations in space and time for these nanoluids. Additionally, a simulation platform (C++) is developed using an iterative scheme to solve the nonlinear equations resulting from the discretization of the system. After an overview of the literature on the …
Characterization Of Gene Products Associated With Reduced Aflatoxin Accumulation In Maize (Zea Mays), Dafne Alves Winders
Characterization Of Gene Products Associated With Reduced Aflatoxin Accumulation In Maize (Zea Mays), Dafne Alves Winders
Theses and Dissertations
The fungus Aspergillus flavus L. is an agricultural threat, particularly for maize (Zea mays L.). Its invasive growth and contamination before and after harvest can lead to the loss of the commodity and cause life threating consequences to humans and livestock that consume a contaminated product. The differential expression profile of two resistant maize inbred lines, Mp313E and Mp719, and two susceptible maize inbred lines, B73 and Va35, were evaluated in the mRNA and protein levels. The experimental designed used allowed to observe the responses of these maize lines to A. flavus inoculation and to the stress caused by wounding …
Complex Network Analysis For Early Detection Of Failure Mechanisms In Resilient Bio-Structures, Reena R. Patel
Complex Network Analysis For Early Detection Of Failure Mechanisms In Resilient Bio-Structures, Reena R. Patel
Theses and Dissertations
Bio-structures owe their remarkable mechanical properties to their hierarchical geometrical arrangement as well as heterogeneous material properties. This dissertation presents an integrated, interdisciplinary approach that employs computational mechanics combined with flow network analysis to gain fundamental insights into the failure mechanisms of high performance, light-weight, structured composites by examining the stress flow patterns formed in the nascent stages of loading for the rostrum of the paddlefish. The data required for the flow network analysis was generated from the finite element analysis of the rostrum. The flow network was weighted based on the parameter of interest, which is stress in the …
Computational Analysis Of Map3k Kinases Across Plant Genomes And Functional Characterization Of A Subset Of Map3ks In Nematode Resistance, Nobert Tamas Bokros
Computational Analysis Of Map3k Kinases Across Plant Genomes And Functional Characterization Of A Subset Of Map3ks In Nematode Resistance, Nobert Tamas Bokros
Theses and Dissertations
Plant MAP3Ks have expanded significantly compared to their metazoan counterparts. A new, sequential workflow combining multispecies ortholog clustering and newly built, family-specific HMMs is used to identify the MAP3K gene family within seven plant species, allowing for a refinement of previously proposed gene family cladding and the novel identification of the MAP3K gene families in the allotetraploid cotton Gossypium hirsutum and newly sequenced monocot seagrass Zostera marina. The MAP3K gene family architecture is further refined and validated using bioinformatics analyses before the recently characterized Arabidopsis Raf-like MAP3K ILK1 is identified and characterized in upland cotton. Transient gene silencing reveals an …
Copper(Ii) Complexes For Olefin Aziridination And Cyclopropanation: Towards Asymmetric N- And C- Transfer Catalyst, Henry U. Valle
Copper(Ii) Complexes For Olefin Aziridination And Cyclopropanation: Towards Asymmetric N- And C- Transfer Catalyst, Henry U. Valle
Theses and Dissertations
Aziridines and cyclopropanes are valued as important building blocks for the synthesis of a wide range of organic compounds, including biologically active compounds and pharmaceuticals. The development for more efficient and cost-effective catalysts for the atom transfer reaction with olefins is a continuing area of research in both organic and inorganic chemistry. Transition metal complexes, which catalyze reactions of olefins with nitrenes and carbenes, are well-developed efficient, approaches to the direct synthesis of aziridines and cyclopropanes, but traditionally rely on expensive synthetic methods. As part of our efforts in the catalytic formation of C—C and C—N bonds, herein we show …
Effect Of Stress Mindset And Adverse Childhood Experiences On College Students' Academic Success And Psychological Well-Being, Alice Cathryne Long
Effect Of Stress Mindset And Adverse Childhood Experiences On College Students' Academic Success And Psychological Well-Being, Alice Cathryne Long
Theses and Dissertations
Adverse life events that occur in childhood may decrease an individual’s ability to effectively cope with challenges throughout their lives. The proper management of stress is essential to avoid problems that can crop up in all areas of life. College students who employ stress management tactics are better able to achieve well-being and academic success. This study examined the potential moderating association between “from within” coping supports or internal risk factors and academic success, mental health, and resilience qualities. Using a sample of college students at a large public university in the southeastern United States, this study demonstrates that viewing …
Effects Of Green Tree Retention On Birds Of Southern Pine Plantations, Michael Clay Parrish
Effects Of Green Tree Retention On Birds Of Southern Pine Plantations, Michael Clay Parrish
Theses and Dissertations
In the southern United States, institutional forest owners engaged in forest certification programs often retain unharvested or less-intensively harvested vegetation when clearcut harvesting intensively managed pine (Pinus spp.) forests (“IMPFs”), a practice called ‘green tree retention’. I investigated resultant patterns of land cover and retained structural elements in recently-harvested IMPF management units (“MUs”) and related them to avian biodiversity to provide information to support harvest decisions. First, to provide forest managers baseline data on retention, I screen-digitized land cover on 1187 MUs (totaling 51646 ha) and characterized green tree retention levels and internal land cover attributes (Chapter 2). I found …
Estimating Clapper Rail (Rallus Crepitans) Survivorship And Implementation Of Estimates Into Individual-Based Population Models, Jared Feura
Theses and Dissertations
Sea-level rise is a concern for the future of coastal marsh obligate species such as the Clapper Rail (Rallus crepitans). Clapper Rails possess the potential to indicate changes to marsh ecological state due to population variation related to habitat features exhibited in previous study. Estimates for Clapper Rail survival are among the key missing parameters to create predictive models for Clapper Rail populations. I estimated Clapper Rail survival using data collected from six automated telemetry towers located in two Mississippi marshes. Thirty adult rails were harnessed with radio transmitters around telemetry towers to provide evidence of a rail’s status, alive …