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Articles 841 - 870 of 12805
Full-Text Articles in Physical Sciences and Mathematics
New Host Records Of Apicomplexan Blood Parasites (Haemogregarinidae And Hepatozoidae) Infecting Two Reptiles (Testudines; Ophidia) From Arkansas, C.T. Mcallister, H.W. Robison
New Host Records Of Apicomplexan Blood Parasites (Haemogregarinidae And Hepatozoidae) Infecting Two Reptiles (Testudines; Ophidia) From Arkansas, C.T. Mcallister, H.W. Robison
Journal of the Arkansas Academy of Science
Relatively few records of apicomplexan blood parasites from reptiles in Arkansas have been published although the effects of these parasites on reptilian health may be of concern. Using photomicrographs we describe the morphotypes of parasite gamonts found in blood samples from the Midland smooth softshell turtle, Apalone mutica mutica, and a western Milksnake Lampropeltis gentilis from Arkansas. The turtle possessed four distinct morphological gamont forms of a Haemogregarina sp. The snake possessed two morphological forms of gamonts of a Hepatozoon sp. Both infections are new host records and the western milksnake has not been described as a host elsewhere for …
Novel Reproductive Data On Blue Sucker, Cycleptus Elongatus (Cypriniformes: Catostomidae), From Northeastern Arkansas, C.T. Mcallister, D.G. Cloutman, E.M. Leis, H.W. Robison
Novel Reproductive Data On Blue Sucker, Cycleptus Elongatus (Cypriniformes: Catostomidae), From Northeastern Arkansas, C.T. Mcallister, D.G. Cloutman, E.M. Leis, H.W. Robison
Journal of the Arkansas Academy of Science
Nothing has been published in the scientific literature concerning the reproductive biology of the Blue Sucker, Cycleptus elongatus in Arkansas. We examined seven female C. elongatus collected in late February 2021 and 2022 and again in early March 2023 from the Black River, Lawrence County. Egg mass (g) averaged 15.8% of the total weight of these gravid females. It appears that this sucker can spawn as early as February in this population. This is the first time information on female reproduction in this species has been published from any population of C. elongatus in the state.
New Species Of Birds Reported In Arkansas Since 2009, R. Tumlison, R. Kannan
New Species Of Birds Reported In Arkansas Since 2009, R. Tumlison, R. Kannan
Journal of the Arkansas Academy of Science
We update our state of knowledge regarding the 20 new species of birds (and 1 new species name based on a change in taxonomy) discovered in Arkansas since the last update in 2009. These are based on records of the Arkansas Audubon Society and those posted on eBird. New species include 3 from Order Anseriformes, 1 Pelicaniformes, 1 Falconiformes, 1 Gruiformes, 4 Charadriiformes, 1 Apodiformes, and 10 Passeriformes. Historic distributions of the new species include Atlantic, Pacific, and Gulf Coasts, as well as interior origins. The current count of extant species of birds observed in Arkansas now stands at 425.
Determination Of Fatty Acid Concentrations In Various Strains Of Freshwater Green Picoplankton Algae (Class Eustigmatophyceae), P. Ashcraft, R. Jacks, B. Martinez, J. Rodriguez, A.B. Burns, A. Gurnsey, L. Taylor, A. Teague, J. Totty, V.L. Fox, A. Williams
Determination Of Fatty Acid Concentrations In Various Strains Of Freshwater Green Picoplankton Algae (Class Eustigmatophyceae), P. Ashcraft, R. Jacks, B. Martinez, J. Rodriguez, A.B. Burns, A. Gurnsey, L. Taylor, A. Teague, J. Totty, V.L. Fox, A. Williams
Journal of the Arkansas Academy of Science
Algae are of scientific and commercial interest due to their ease of culture and high fatty acid content. The extracted fatty acids from these phytoplankton may potentially be used as an additional test for phylogenetic classification of new algal strains (Tonon et al. 2002), as well as in a supplement for human consumption and producing next-generation biofuels. Of interest is the fatty acid content contained within various algal isolates within the class Eustigmatophyceae. Algal strains were collected and isolated from locations in Lake Chicot in Arkansas, Tower Pond and Lake Itasca at Itasca State Park in Minnesota, and Thayer Lake …
Spermiogenesis In The Western Siren, Siren Nettingi (Caudata: Sirenidae), S.E. Trauth
Spermiogenesis In The Western Siren, Siren Nettingi (Caudata: Sirenidae), S.E. Trauth
Journal of the Arkansas Academy of Science
I investigated spermiogenesis in the Western Siren, Siren nettingi (formerly Western Lesser Siren, Siren intermedia nettingi) from salamanders collected periodically over a span of 21 yr (1994–2015) in northeastern Arkansas. My primary objective in this study is to present histologically and ultrastructurally, for the first time, the novel sequence of spermatological events of the spermiogenic process in this species. I describe the transformational stages from secondary spermatocytes to mature biflagellated spermatozoa, all of which occur within the lumen of testicular lobules. These new-to-science processes begin with nuclear displacement and expansion within spermatids, which occur after their detachment from Sertoli cells …
Least Flycatchers Under-Reported In Fall Migration In Arkansas —A Citizen Science Conundrum, L. Barnes, R. Kannan
Least Flycatchers Under-Reported In Fall Migration In Arkansas —A Citizen Science Conundrum, L. Barnes, R. Kannan
Journal of the Arkansas Academy of Science
The Least Flycatcher Empidonax minimus is a small passerine migrant bird that passes through Arkansas in fall and spring migration. The birds are vocal during spring passage but relatively quiet and unobtrusive during fall migration, leading to many fewer reports by birdwatchers in fall than spring. We use eBird maps and data to present evidence to support this discrepancy between fall and spring observations. We also show that the species is under-reported in Arkansas during the fall compared to neighboring regions. This may be in part due to the reluctance of some birders to provide the minimal evidence required to …
Hemoparasites (Apicomplexa: Hepatozoon; Kinetoplastida: Trypanosoma) Of Two Anurans (Hylidae; Ranidae), From Polk County, Arkansas, C.T. Mcallister, H.W. Robison
Hemoparasites (Apicomplexa: Hepatozoon; Kinetoplastida: Trypanosoma) Of Two Anurans (Hylidae; Ranidae), From Polk County, Arkansas, C.T. Mcallister, H.W. Robison
Journal of the Arkansas Academy of Science
Arkansas supports 26 species/subspecies of anurans and only one (4%), the green frog, Rana clamitans, has been previously reported with hemoparasites. Here, we collected blood samples from three species of anurans, five American green treefrogs, Dryophytes cinereus, five American bullfrogs, Rana catesbeianus, two southern leopard frogs, Rana sphenocephalus utricularius, and two Fowler’s toads, Anaxyrus fowleri from Polk County and examined each for hemoparasites. American green treefrogs and American bullfrogs harbored hemoparasites, including two (40%) D. cinereus and four (80%) R. catesbeianus with trypanosomes, and one (20%) R. catesbeiana with a Hepatozoon sp. This is the first time these two anurans …
The Rayleigh Problem (Random Flights) Is Everywhere Redux, John E. Gray, Stephen R. Addison
The Rayleigh Problem (Random Flights) Is Everywhere Redux, John E. Gray, Stephen R. Addison
Journal of the Arkansas Academy of Science
The phase noise problem (or Rayleigh problem) occurs in all aspects of radar. It is an effect that a radar engineer or physicist always has to take into account as part of a design or in an attempt to characterize the physics of a problem such as reverberation. Normally, the mathematical difficulties of phase noise characterization are avoided by assuming the phase noise probability distribution function (PDF) is uniformly distributed, and the Central Limit Theorem (CLT) is invoked to argue that the superposition of relatively few random components obey the CLT and hence the superposition can be treated as a …
No Sperm Morphometric Differences Between Two Snapping Turtle Species, J.D. Konvalina, S.E. Trauth
No Sperm Morphometric Differences Between Two Snapping Turtle Species, J.D. Konvalina, S.E. Trauth
Journal of the Arkansas Academy of Science
We examined sperm morphometrics between Chelydra serpentina and Macrochelys temminckii. When both species are combined, we found significant correlations between total sperm length and sperm head length as well as sperm tail length and sperm head length. In addition, we observed significant correlations between total sperm length and sperm tail length. T-tests revealed no significant differences in any of the sperm morphometrics between the two species. Both snapping turtle species had greater values for every sperm morphometric when compared to another freshwater turtle. The strong correlation between total sperm length and sperm tail length is concurrent with what has previously …
Noteworthy Parasites (Trematoda, Cestoda, Phthiraptera) Of Three Birds (Aves: Passeriformes; Pelecaniformes; Piciformes) From Arkansas, C.T. Mcallister, H.W. Robison
Noteworthy Parasites (Trematoda, Cestoda, Phthiraptera) Of Three Birds (Aves: Passeriformes; Pelecaniformes; Piciformes) From Arkansas, C.T. Mcallister, H.W. Robison
Journal of the Arkansas Academy of Science
Between November 2020 and March 2021, three species of birds, one each of a tufted titmouse (Baeolophus bicolor), pileated woodpecker (Dryocopus pileatus), and great blue heron (Ardea herodias) were salvaged from Lawrence and Polk counties, Arkansas, and examined for parasites. Found were four taxa of parasites, including a dicrocoeliid trematode, a cyclophyllidean cestode, and species of philopterid and menoponid lice. We document new host and distributional records for these parasites from select birds of the state.
Histomorphology Of The Distal Urogenital Ducts In The Male Northern Crawfish Frog, Rana Areolata Circulosa (Anura: Ranidae), S.E. Trauth, R.G. Neal
Histomorphology Of The Distal Urogenital Ducts In The Male Northern Crawfish Frog, Rana Areolata Circulosa (Anura: Ranidae), S.E. Trauth, R.G. Neal
Journal of the Arkansas Academy of Science
We examined the microanatomy of the distal urogenital ducts in the male Northern Crawfish Frog (Rana areolata circulosa) from a small sample (n = 5) collected in February and March from central Arkansas over a 5-year period (2017–2022). Specifically, we sought information on the following structures: (1) the paired Wolffian (urogenital) ducts caudally from the kidneys to their merging with the urodeum of the cloaca, (2) the paired seminal vesicles (sperm storage structures), and (3) the paired Müllerian ducts and glands. This study provides new information on these urogenital ducts and promotes a clearer understanding of this anatomical region for …
Rare Birds In Arkansas: Historical Observations And New Records, R. Tumlison, R. Kannan
Rare Birds In Arkansas: Historical Observations And New Records, R. Tumlison, R. Kannan
Journal of the Arkansas Academy of Science
Diligent members of birding communities are quick to report rare sightings of birds, which often lead to multiple observations and photographic documentation. Verified reports and images of birds in Arkansas are curated by the Arkansas Audubon Society (AAS), which has led to an appreciation of which species are common versus rare. We gathered historic (literature) and more recent unpublished records of rare birds (those with fewer than 10 reports, per AAS) to document the historic and current state of knowledge of those species. Currently, there are a total of 425 species of birds reported in Arkansas, of which 54 are …
New Records Of Distribution And Natural History Of Vertebrates In Arkansas: 2020-2023, R. Tumlison, H.W. Robison, M.B. Connior, D.B. Sasse, T.S. Risch, K. Edmonds, J.D. Wilhide, C.R. Allen
New Records Of Distribution And Natural History Of Vertebrates In Arkansas: 2020-2023, R. Tumlison, H.W. Robison, M.B. Connior, D.B. Sasse, T.S. Risch, K. Edmonds, J.D. Wilhide, C.R. Allen
Journal of the Arkansas Academy of Science
Small details of natural history often go undocumented to science if those details are not parts of larger studies. However, knowledge of small details can provide insights that lead to interesting questions about ecological relationships or environmental change. We have compiled recent important observations of natural history of vertebrates, including several distributional and size records of fishes, atypical carapace shape in a common snapping turtle, an unusual support structure for a bird nest, healed damage to a broken jaw of a young deer, and numerous distributional records of bats.
New Geographic Distributional Records For Two Lampreys (Petromyzontiformes: Petromyzontidae) In Arkansas, With Notes On Histopathology, C.T. Mcallister, H.W. Robison, E.M. Leis, D.G. Cloutman, A.C. Camus
New Geographic Distributional Records For Two Lampreys (Petromyzontiformes: Petromyzontidae) In Arkansas, With Notes On Histopathology, C.T. Mcallister, H.W. Robison, E.M. Leis, D.G. Cloutman, A.C. Camus
Journal of the Arkansas Academy of Science
The recent update (2nd edition) of the Fishes of Arkansas includes what is known, to date, on the geographic distribution of five species of lampreys that occur in the state. Here, we provide new distributional records on two of those species, the chestnut lamprey (Ichthyomyzon castaneus) and southern brook lamprey (I. gagei), as well as documenting host-parasite information (histopathology) caused by the former species.
Doctoral Studies As Learning To Rename The World, Hyleen Mariaye
Doctoral Studies As Learning To Rename The World, Hyleen Mariaye
Journal of Multicultural Affairs
The reflective experience documented in this paper engages with doctoral learning from Freire’s (1968/2000) conceptual lens of naming the world. Written from the narrative lens of the supervisor, it considers how doctoral level studies in education can position both the supervisor and the candidates as agents actively reconstructing their understanding of the world and their place in it. The doctoral journey is viewed as praxis compelling researchers to expand their frames for reading the world, accommodating the other, including multiple voices and thus demonstrating commitment to a global and yet constantly contested notion of citizenship.
Poetry And Praxis: Lessons From An Activist Educator, Dr. Emmanuel Tabi
Poetry And Praxis: Lessons From An Activist Educator, Dr. Emmanuel Tabi
Journal of Multicultural Affairs
Drawing on data from a narrative multi-case study based in Toronto, Canada, this article discusses the lived experiences of one Black activist. Utilizing critical race theory, new literacy studies and the rhetoric of cultural production as theoretical frameworks, the article foregrounds the work of Ebele, a Toronto activist whose work supported the educational trajectories and emotional well-being of Black students, many of whom reported being marginalized in school. Through his creative labor, Ebele directly addressed the sociology of anti-Black racism that deeply influences the lives of Afrodiasporic people in Canada. This article continues the conversation about what it means to …
A Causal-Comparative Study Of The Impact Of Meaningful Watershed Environmental Experiences On The Academic Achievement Of Middle School Students, Gina R. Mason
Doctoral Dissertations and Projects
Meaningful watershed educational experiences (MWEE) are student-centered, problem solving-oriented environmental educational experiences in which students investigate local environmental issues leading to civic engagement and informed action. The four components of an MWEE include issue definition, outdoor field experience, synthesis and conclusion, and action projects. While multiple benefits have been shown to be gained through participation in environmental education, this study’s aim was to observe the impact MWEEs have on academic achievement in middle school students. This quantitative, ex post facto, causal-comparative study examined the impact MWEEs had on students’ achievement scores, as measured by Pennsylvania System of School Assessment (PSSA) …
Potential Benefits Of The Campus Outdoor Built Environment On Student Stress, Leading To Improved Retention, Kevin Dilliard
Potential Benefits Of The Campus Outdoor Built Environment On Student Stress, Leading To Improved Retention, Kevin Dilliard
Graduate Liberal Studies Theses and Dissertations
University landscape managers often ask themselves, are they making a difference? Since what they do is not a revenue-generating department, how can they validate their true worth beyond making the campus beautiful, which is excellent, but what added value do they bring? As is common practice, when economic times get tough, the landscape department budget is one of the first to be cut, but is that the wisest thing to do? This research was intended to explore the concept that the services landscape managers provide have a return on investment by providing an environment in which students can thrive and …
Examining The Impact Of Covid-19 On The Education And Development Of American Students, Riley Fortin '25
Examining The Impact Of Covid-19 On The Education And Development Of American Students, Riley Fortin '25
Student Research
After the COVID-19 pandemic, the vast majority of American children have fallen behind on core subjects due to the ultimate ineffectiveness of remote learning. This study attempts to discover the degree to which children have fallen behind through the trends in the National Association of Educational Procurement’s two most recent testing years. A database accessed from Google has been analyzed, filtered by state and visualized in tables in order to indicate any possible trends as a result of remote learning brought on by the pandemic. By looking at data in seven different states across the country, there is a notable …
Matemáticas Financieras Aplicadas, Odair Triana Calderón
Matemáticas Financieras Aplicadas, Odair Triana Calderón
Ciencias Administrativas, Económicas y Contables
Teniendo en cuenta que las matemáticas son una herramienta fundamental en las Ciencias Administrativas, especialmente en las finanzas. MATEMÁTICAS FINANCIERAS APLICADAS, busca dar solución a aquellos problemas de tipo económico y financiero que se presentan en una economía, organización o núcleo familiar, mediante la utilización de modelos matemáticos y la aplicación en Microsoft Excel.
El texto realiza un estudio de problemas de inversión y financiación, donde el cálculo de intereses con base en un capital y atendiendo a variables como el tiempo y las tasas de rendimiento, permite el desarrollo de casos utilizando el interés simple e interés compuesto.
Por …
Ambientes De Inclusión Para El Desarrollo Del Pensamiento Numérico Con Población Con Síndrome De Down, Luisa Valeria Escobar Buitrago, Ingry Yuliana Torres Garzón, Juan David Firigua Bejarano
Ambientes De Inclusión Para El Desarrollo Del Pensamiento Numérico Con Población Con Síndrome De Down, Luisa Valeria Escobar Buitrago, Ingry Yuliana Torres Garzón, Juan David Firigua Bejarano
Educación
La importancia de tratar sobre una educación inclusiva es hacer que la humanidad obtenga la aceptación hacia la diversidad, donde se encuentre un mundo lleno de posibilidades reconociendo todos los tipos de población entre ella las personas con Síndrome de Down, lo cual consiste en que la educación esté centrado en el respeto y la valoración de la diversidad, haciendo un enfoque general en las necesidades que esta población tiene, desarrollando habilidades para su desenvolvimiento tanto personal como laboral en determinada sociedad, por lo tanto el objetivo principal de este trabajo es desarrollar el pensamiento numérico de los estudiantes de …
College Teaching And Ai, Leo Irakliotis
College Teaching And Ai, Leo Irakliotis
Computer Science: Faculty Publications and Other Works
Artificial Intelligence will reshape the way we assess student learning in ways that no one has prepared us for.
A View Into Secondary Education Mathematics, Thomas Krieger Jr.
A View Into Secondary Education Mathematics, Thomas Krieger Jr.
Honors Theses
Teaching methods, and the effects they can have on students, are important to consider for a classroom because when teaching you should allow for every student to have an opportunity. Every student should feel encouraged in the classroom, however not every method may allow for that. An important task for a teacher is to find out how to reach their students in their classroom; be it adapting methods or choosing when to implement one item over another. This task differs with every student that enters the classroom as no student is the same. Every students’ differences stem from their academic …
Wrack Lines Volume 22, Number 2, Fall-Winter 2022-2023, Nancy C. Balcom, Juliana Barrett, Judy Benson, Ben Crnic, Sto Len
Wrack Lines Volume 22, Number 2, Fall-Winter 2022-2023, Nancy C. Balcom, Juliana Barrett, Judy Benson, Ben Crnic, Sto Len
Wrack Lines
With the theme, "Looking Ahead: People and Projects Shaping the Future," the Fall-Winter 2022-2023 leads with the first in what will be a series of articles about offshore wind development impacting Connecticut. That is followed by the inspiring story of how a dying forest was replanted for climate resilience. Next, a profile of longtime marine educator Tim Visel tells about his lasting impact on Connecticut schools and students. Lastly, the complex challenge of dealing with Contaminants of Emerging Concern is examined, with descriptions of how Sea Grant is involved and the particularly troublesome group of substances called PFAS.
2022 - The Third Annual Fall Symposium Of Student Scholars
2022 - The Third Annual Fall Symposium Of Student Scholars
Symposium of Student Scholars Program Books
The full program book from the Fall 2022 Symposium of Student Scholars, held on November 17, 2022. Includes abstracts from the presentations and posters.
The Effectiveness Of Using Python Programming Approach In Teaching Ffnancial Analytics, Clarence Goh, Yuanto Kusnadi, Gary Pan
The Effectiveness Of Using Python Programming Approach In Teaching Ffnancial Analytics, Clarence Goh, Yuanto Kusnadi, Gary Pan
Research Collection School Of Accountancy
This study presents a learning method and challenges regarding implementing a Python programming approach in teaching financial analytics to graduate accounting students. The advent of Big Data, as well as related applications and technologies, has significantly changed the process and practice of accounting. This has led to essential changes in the construction and teaching content of accounting education. While there have been several studies examining how data analytics is embedded in the accounting curriculum, the majority of the teaching cases in accounting focus on analysis and communication with Excel as the principal tool, with very few covering the necessary steps …
Financial Literacy Among Buffalo State College Undergraduate Students, Toni Martinucci
Financial Literacy Among Buffalo State College Undergraduate Students, Toni Martinucci
Public Administration Master’s Projects
Financial literacy can be complex and difficult for college students to comprehend. Many students struggle to afford college and are faced with large amounts of student loan debt. Financial awareness needs to be addressed early on for students to make informed decisions about college costs, student debt, and financial aid. However, financial aid applications, terms and conditions, and eligibility requirements are difficult for many students to comprehend on their own. The purpose of this study is to access financial literacy among undergraduate students at Buffalo State College. A quantitative approach is used in this study by implementing a web-based cross-sectional …
Natural, Experimental, And Educational Explorations Of The Interiors Of Terrestrial Planetary Bodies, Nadine L. Grambling
Natural, Experimental, And Educational Explorations Of The Interiors Of Terrestrial Planetary Bodies, Nadine L. Grambling
Doctoral Dissertations
Planetary interiors are enigmatic, inaccessible, and vital to the processes that have formed the rocks we see on the surface of bodies in the inner Solar System today. Based on geophysical explorations of the Moon and Earth, along with information gleaned from rocks at the surface today, there is understanding of the basic structure and processes at depth. Using a combination of natural samples and experimental studies, we attempt to learn more about the physical conditions beneath the surface, and their effect on material properties and tectonics processes in the mantle.
On Earth, mid-ocean ridge processes have long been debated, …
Obstacles In Learning Algorithm Run-Time Complexity Analysis, Bailey Licht
Obstacles In Learning Algorithm Run-Time Complexity Analysis, Bailey Licht
Theses/Capstones/Creative Projects
Algorithm run-time complexity analysis is an important topic in data structures and algorithms courses, but it is also a topic that many students struggle with. Commonly cited difficulties include the necessary mathematical background knowledge, the abstract nature of the topic, and the presentation style of the material. Analyzing the subject of algorithm analysis using multiple learning theories shows that course materials often leave out key steps in the learning process and neglect certain learning styles. Students can be more successful at learning algorithm run-time complexity analysis if these missing stages and learning styles are addressed.
What Can General Chemistry Students Learn From External Representations Of Acid- Base Titrations?, Nicole Baldwin
What Can General Chemistry Students Learn From External Representations Of Acid- Base Titrations?, Nicole Baldwin
UNLV Theses, Dissertations, Professional Papers, and Capstones
Laboratory activities are a prevalent and essential part of chemistry learning because of their potential to help students develop problem solving abilities, visualize chemistry concepts learned in lecture, and gain practical skills. However, learning in the laboratory environment is not without its challenges. For example, cookbook-style chemistry laboratories can promote superficial learning, and cognitive overload can result from the study of new concepts and the use of new procedures in this environment. Multiple pedagogies and supports have been developed to address challenges such as these. The current research focuses upon external representations that are commonly used to support learning in …