Digital Commons Network^™

Sediment Production From Forest Roads In Areas Affected By The August Complex Fire In Northern California, Zachary J. Gigone

Cal Poly Humboldt theses and projects

Wildfire activity is increasing in California and is an important factor affecting erosion rates. Landscapes recently affected by wildfire, areas that have been salvage logged after a fire, and unpaved forest roads are all major sources of sediment which can impair water quality and negatively impact many aquatic species. Therefore, this study was conducted to quantify erosion rates from native and gravel surfaced forest road segments after the August Complex fire, evaluate the impact of salvage logging activities on sediment production from roads, and understand the effect of soil burn severity on sediment production from these road segments. Finally, this …

Late Quaternary Glacier Fluctuations At Picayune Lake, Northern California, Aidan Patrick Cowan

Cal Poly Humboldt theses and projects

The Klamath Mountains are a 233-km-long (north to south) mountain range located in northern California that shows extensive geomorphic evidence of Pleistocene glaciation. Within the Klamath’s there are many highland lakes, which record evidence of glacial deposition, one of which is Picayune Lake. Lake sediment data collected from Picayune Lake offers insights into the glaciation, and broader depositional history of the Picayune Lake Valley, as well as the climate history of the Klamath Mountains region. I measured magnetic susceptibility, loss on ignition, and grain size in sediment cores and used radiocarbon dating to determine a chronology of glacier fluctuations in …

Comparison Of Environmental Dna And Underwater Visual Count Surveys For Detecting Juvenile Coho Salmon (Oncorhynchus Kisutch) In Rivers, Jason T. Shaffer

Cal Poly Humboldt theses and projects

Environmental DNA (eDNA) has developed into a useful tool for determining the distribution of rare aquatic species, but relatively few studies have directly compared the detection probabilities of this method with other conventional survey techniques. These comparisons can inform which method may be better suited to address study objectives. In this study, the overall goal was to compare the ability of eDNA and underwater visual count (UVC) surveys to detect juvenile coho salmon (Oncorhynchus kisutch), a species of conservation concern at the southern extent of its geographic range. Specifically, I address two objectives: (1) compare the ability of …

The Effect Of Brain Breaks On Student Outcomes Of School-Aged Children In K-12 Classrooms: A Meta-Analysis, Teron H. Schaeffer

Cal Poly Humboldt theses and projects

BACKGROUND: Integrated physical activity in the classroom has been shown to affect K-12 students’ development positively. Students of all abilities benefit from multimodality learning. PURPOSE: This study investigates the relationship between classroom brain breaks and school-aged students' classroom behaviors. METHODS: The Meta-analysis search process consisted of 3 Phases: (1) Screen the titles, (2) Screen the abstracts, and (3) Retrieve the Full Text. Literature searches were conducted in eight electronic academic journal databases: SPORTDiscus, PsycINFO, PsycARTICLES, Cochrane Database, Web of Science/Web of Knowledge, ProQuest, Child Development and Adolescent Studies, and ERIC. Students (N) are enrolled in schools serving students from kindergarten …

Geomorphic Evaluation Of The Goose Lake Fault And Fluvial Terraces At The Yager Creek–Van Duzen River Confluence, Northern Coastal California, Samuel E. Bold

Cal Poly Humboldt theses and projects

Upper-plate deformation in the southern Cascadia subduction zone is dynamic and complex, situated in the transition between northward translation to westward convergence. Rock uplift and incision rates characteristic of this dynamic region are preserved in suites of fluvial and marine terraces. Fluvial terraces at the Yager Creek–Van Duzen River confluence record fluvial incision rates, and are crosscut by the understudied Goose Lake fault, an upper plate structure. In this work, I use high resolution lidar imagery to map terrace surfaces, and use optically stimulated luminescence, radiocarbon, and Beryllium-10 geochronology to bracket terrace ages and calculate incision and slip rates. With …

Copy Number Variations In Patients With Idiopathic Recurrent Pregnancy Loss: An Arraycgh Approach, Onur Yildiz, Fatma Silan, Taner Karakaya, Öztürk Özdemi̇r

Turkish Journal of Medical Sciences

Background/aim: It is not always possible to determine the causative basis of pregnancy losses and even today it has been reported that 50% of cases with recurrent pregnancy loss (RPL) have no reason to be detected. In our study, it is aimed to reveal the copy number variations (CNVs) of the genes which presumably have a potential effect in individuals with RPL and contribute to subsequent functional studies in the follow-up. Materials and methods: We retrospectively evaluated the array-comparative genomic hybridization (aCGH) data of cytogenetically 64 normal individuals (21 couples, 11 unrelated women, and 11 unrelated men) who had applied …

Interaction Effects Of Age And Body Weight Losses During Moulting On The Performance Ofcommercial Laying Hens, Mian Mubashar Saleem, Jibran Hussain, Usman Elahi, Ehsaan Ullah Khan, Muhammad Usman, Syed Ghulam Mohayudin Hashmi, Sohail Ahmad

Turkish Journal of Veterinary & Animal Sciences

This study evaluated the interaction effects of different age groups and body weight losses during moulting on the productive performance, egg quality, and immune response of commercial laying hens. In total 324 Lohmann Selected Leghorn Lite laying hens of 80 and 108 weeks old were studied. A completely randomized experimental design in factorial arrangement, with 6 treatments of 6 replicates with 9 hens each, was applied. Treatments consisted of 2 production cycles (80 and 108 weeks) and three body weight losses during moulting (20%, 25%, and 30%). Productive performance (body weight, feed intake, egg weight, production percent, egg mass, feed …

A Game Theoretic Approach To Design Mating Programs For Livestock, Ebru Ergüneş Berki̇n, Hasan Önder, Özgür Hakan Aydoğmuş

Turkish Journal of Veterinary & Animal Sciences

In this study, we proposed a new game theoretic method to design a mating program. The index and game theoretic methods were applied with calculated breeding values using pedigree on two different data sets whose economic traits consist of negative (milk yield and fat percentage) and positive (birth and weaning weight) genetic correlated data. For the negative genetic correlated data set, even if total expected benefits were equal for two methods, mating programs were changed, and the coefficient of variation obtained using the game theoretic method was smaller than that of the index method. This result showed that the expected …

Productive Performance, Egg Quality, And Hatching Traits Of Japanese Quail Lines Selectedfor Higher Body Weight And Egg Number, Abdur Rehman, Jibran Hussain, Athar Mahmud, Khalid Javed, Abdul Ghayas, Sohail Ahmad

Turkish Journal of Veterinary & Animal Sciences

The present study evaluated the effect of selection for higher body weight (weight based selection = WBS) and egg numbers (egg based selection = EBS) on productivity, egg quality, and hatching traits of Japanese quail for three generations. From a base population of 1125 day-old chicks of Japanese quail, best performing families were allowed to propagate for getting next generation. WBS in G3 presented higher values of feed intake, egg weight, hatching weight. However, egg production and feed conversion ratio were better in EBS during G3. The incidence of embryonic mortality was also lower in the WBS line. In the …

Comparison Of M, Mm And Lts Estimators In Linear Regression In The Presence Of Outlier, Cem Tirink, Hasan Önder

Turkish Journal of Veterinary & Animal Sciences

In this study, it was aimed to evaluate the performance of different estimators that will be used in regression analysis, which is one of the multivariate statistical methods in the presence of outliers in the data set. Sixth month live weight was estimated with various body measurements for Saanen kids taken from a private farm. In the data set, the use and performance of robust estimators were evaluated because the least squares method did not provide reliable results in the case of outliers. M (for Huber and Tukey bisquare) estimator, MM estimator and LTS estimator were used as robust used …

Investigating Genetic Diversity Of Indonesian Native Cattle Breeds Using Mitochondrialdna 16s Rrna Gene, Restu Misrianti, Sony Hartono Wijaya, Cece Sumantri, Jakaria Jakaria

Turkish Journal of Veterinary & Animal Sciences

This study aimed to estimate the genetic diversity and phylogenetic relationships of Indonesian native and local cattle breeds using 16S rRNA mitochondrial DNA. The study analyzed 93 DNA samples from six cattle breeds. The polymerase chain reaction was conducted using two primer pairs to sequence the complete 16S rRNA gene. The number of the polymorphic site (S), pairwise nucleotide differences (K), haplotype diversity (Hd), and nucleotide diversity (?) were estimated using DnaSP 6 software. PopART v. 1.7 software was employed for the median-joining network analysis, while a neighbor-joining tree was reconstructed based on the Kimura 2-parameter model using MEGA X …

Evaluation Of The Relationship Between Insulin Resistance And Visceral Adiposity Index Inpatients With Acne Vulgaris, İbrahi̇m Fuat Kayihan Kaya, M. Ali̇ Eryilmaz, Selma Pekgör, Orhan Külahci

Turkish Journal of Medical Sciences

Background/aim: Acne vulgaris (AV) is a chronic inflammatory skin disease that is common among adolescents. Its etiology involves hormones, diet, genetics, and environmental factors. The aim of this study was to investigate the association between acne vulgaris and insulin resistance (IR) and visceral adiposity index (VAI). Materials and methods: The study included 184 individuals. Participants' height, weight, waist and hip circumference and blood pressure were measured. Morning fasting blood was obtained from all participants for measuring glucose, insulin, triglyceride (TG), and cholesterol levels. The HOMA index and visceral adiposity index were calculated. The collected data were analyzed using statistical methods. …

Turkey's Transition To Face-To-Face Schooling During The Covid-19 Pandemic, Mahmut Özer, Hayri̇ Eren Suna, Matjaz Perc, Sadri̇ Şensoy, Sevi̇l Uygun İli̇khan

Turkish Journal of Medical Sciences

Background/aim: The COVID-19 pandemic majorly disrupted conventional schooling and many countries maintained educational services through distance education. The duration of school closures in Turkey was longer than most OECD countries, thus Turkey prioritized school reopenings in the 2021-2022 academic year to mitigate possible negative outcomes of closures. Here we study the compatibility of implications for school reopenings in Turkey with these practices and assess the first semester of face-to-face schooling. Materials and methods: We have used document analysis to present and compare the practices in Turkey with international practices. We also used a comparative approach to assess the coherence between …

Making Connections To Address Mathematics Anxiety: A Case Study Of The Instructional Triangle And Remedial College Instructors, Njeri M. Pringle, Jamie L. Workman, Meagan C. Arrastia-Chisholm

Georgia Educational Researcher

Mathematics anxiety is a reality for many students as a number of community college and four-year university students feel disconnected from math and struggle to pass mathematics courses. Using a case study and grounded theory approach, six remedial mathematics instructors were interviewed and observed to examine their instructional strategies and practices. During the interviews, participants expounded upon the changes in strategies and practices implemented when aiding students struggling with anxiety. The Instructional Triangle was applied across participants to compare and contrast their experiences. The analysis focused on environmental factors that could increase or exacerbate mathematics anxiety. In particular, a theme …

Peer-Coaching Based Professional Development: A Sample Of A School Of Foreign Languages, Sinem Arslan Dönmez, Ahmet Şahin Assoc. Prof.

Georgia Educational Researcher

The purpose of this study is to investigate the views of lecturers about the effectiveness of the implementation of the peer-coaching practice conducted at the school of foreign languages of a foundation university. The lecturers who took part in the peer coaching practice in the academic year 2019-2020 acted as the participants in this case study. The qualitative data was collected via interviews and document analysis. Content analysis and descriptive analysis methods were used in the process of data analysis. The findings from the analysis showed that peer-coaching practice consisted of lesson observations, pre and post-observation meetings, and reflection stages. …

Matching Extendability In Cartesian Products Of Cycles, Jennifer Vandenbussche, Erik E. Westlund

Faculty Articles

In a bipartite graph G, a set (Formula presented) is deficient if |N(S)| < |S|. A matching M with vertex set U is k-suitable if G − U has no deficient set of size less than k. Define the extremal function fk (G) to be the largest integer r such that every k-suitable matching in G with at most r edges extends to a perfect matching. Let G(2m)d be the d-fold Cartesian product of the cycle C2m,wherem ≥ 2. We extend results of Vandenbussche and West by showing that for any integers k and d such that (Formula presented), except when m =2 and d =1.

Safety, Regulatory And Environmental Issues Related To Breeding And International Trade Of Edible Insects In Africa, S. Niassy, E. R. Omuse, N. Roos, A. Halloran, J. Eilenberg, J. P. Egonyu, C. Tanga, F. Meutchieye, R. Mwangi, S. Subramanian, R. Musundire, P. O.Y. Nkunika, J. P. Anankware, J. Kinyuru, A. Yusuf, S. Ekesi

All Peer-Reviewed Publications

Insect breeding or farming for food and feed is an emerging enterprise that can address the ever-growing demand for protein and curb high unemployment rates in Africa and beyond. However, for the sector to prosper, its value chain needs to be regulated to ensure sustainability and safety for consumers and the environment. Although a few African countries, such as Kenya, Uganda and Rwanda, have promulgated standards on the use of insects as food and feed, greater efforts are needed in other countries, and relevant policies governing the sector need to be formulated. All over the globe, attention to the regulation …

Interactions Between Integrated Pest Management, Pollinator Introduction, And Landscape Context On Avocado Persea Americana Productivity, Nadia K. Toukem, Samira A. Mohamed, Abdullahi A. Yusuf, H. Michael G. Lattorff, Robert S. Copeland, Thomas Dubois

All Peer-Reviewed Publications

Pest management and insect pollination are important services that support crop production but are most often studied in isolation in cropping systems. Avocado Persea americana Mill. is an economically important crop in East Africa, which suffers from pest threats and potential drawbacks of the global pollinator crisis. The integration of pest and pollinator management is a growing research trend as a potential solution for sustainable crop production with minimum adverse effects on the environment and biodiversity. This study assessed potential interactions between landscape context, honeybee Apis mellifera L. introduction and integrated pest management (IPM) on avocado pests Bactrocera dorsalis (Hendel) …

How Shame Shapes Church Planting : Exploring Impacts On Gospel Receptivity Among Emerging Adults, Robert Mark Montgomery

ATS Dissertations

No abstract provided.

Let The Machines Do The Dirty Work: Social Media, Machine Learning Technology And The Iteration Of Racialized Surveillance, Subhah Wadhawan

Canadian Journal of Law and Technology

Post 9/11, where the current social and cultural temperature has constructed Islam as interchangeable with terrorism, digital intermediaries have responded with increased censorship of speech related to, emerging from, or advocating Islamic ideology. At the heart of this paper is the argument that digital intermediaries have relied on the opaqueness of machine learning technology (‘‘MLT”) to realize racialized surveillance, whereby speech concerning Islamic content has been disproportionally censored. This paper maps out how inherent biases concerning the ideology of Islam have been interwoven into the coding and machine learning used by the major tech giants. As a result of the …

The Enhanced Effect Of A Twitter Intervention On Pell Grant Recipients 6-Year Stem Graduation Rates, Greg Heiberger, Ray Junco, Sumadhuri Pamarthi

Biology and Microbiology Faculty Publications and Datasets

This study evaluates the long-term impact of a randomized controlled study which utilized Twitter as an educational intervention to extend the course beyond the physical and time constraints of face-to-face instruction. Participants included 125 undergraduates from a mid-sized midwestern doctoral granting university in the United States. Outcomes previously published include increased engagement and grades for the intervention group (Twitter) compared to the control group. In the longitudinal study presented here, interaction effects were analyzed between GPA, ACT, gender, and socio-economic status with first-to second year retention rates, 6-year graduation rates and 6-year graduation rates in STEM fields.
A statistically significant …

Gvsu Undergraduate And Graduate Catalog, 2022-2023, Grand Valley State University

Course Catalogs, 1963 - Current

Grand Valley State University 2022-2023 undergraduate and graduate course catalog. Course catalogs are published annually to provide students with information and guidance for enrollment.

Using Multiple Environmental Tracers To Estimate Field-Scale Longitudinal Dispersivity, Casey L. Kleppel

Graduate Student Theses, Dissertations, & Professional Papers

In this study, we seek to reduce parameter uncertainty in groundwater modeling systems, particularly in reactive transport models, by quantifying effective field-scale longitudinal dispersivity using anthropogenic environmental tracers. We generate synthetic aquifer fields and model transport of atmospheric tracers and test whether tracers can be used to determine an effective aquifer-scale dispersion coefficient. We generate synthetic datasets by simulating transport of chlorofluorocarbons (CFC11, CFC12, CFC113), sulfur-hexafluoride (SF₆) and tritium (³H) with input functions derived from known atmospheric concentrations, through a three-dimensional, stochastic, heterogeneous synthetic aquifer developed using sequential Gaussian simulation using the PFLOTRAN reactive transport model. …

Boron Isotopes In Boninites Document Rapid Changes In Slab Inputs During Subduction Initiation, Hong-Yan Li, Xiang Li, Jeffrey G. Ryan, Chao Zhang, Yi-Gang Xu

School of Geosciences Faculty and Staff Publications

How subduction-related magmatism starts at convergent plate margins is still poorly understood. Here we show that boron isotope variations in early-formed boninites from the Izu-Bonin arc, combined with radiogenic isotopes and elemental ratios document rapid (~0.5 to 1 Myr) changes in the sources and makeup of slab inputs as subduction begins. Heterogeneous hornblende-granulite facies melts from ocean crust gabbros ± basalts fluxed early melting to generate low silica boninites. Hydrous fluids from slab sediments and basalts later fluxed the low silica boninites mantle source to produce high silica boninites. Our results suggest that initially the uppermost parts of the slab …

The Legacy Of Hurricanes, Historic Land Cover, And Municipal Ordinances On Urban Tree Canopy In Florida (United States), Allyson B. Salisbury, Andrew K. Koeser, Richard J. Hauer, Deborah R. Hilbert, Amr H. Abd-Elrahman, Michael G. Andreu, Katie Britt, Shawn Landry, Mary G. Lusk, Jason W. Miesbauer, Hunter Thorn

School of Geosciences Faculty and Staff Publications

Urban Tree Canopy (UTC) greatly enhances the livability of cities by reducing urban heat buildup, mitigating stormwater runoff, and filtering airborne particulates, among other ecological services. These benefits, combined with the relative ease of measuring tree cover from aerial imagery, have led many cities to adopt management strategies based on UTC goals. In this study, we conducted canopy analyses for 300 cities in Florida to assess the impacts of development practices, urban forest ordinances, and hurricanes on tree cover. Within the cities sampled, UTC ranged from 5.9 to 68.7% with a median canopy coverage of 32.3% Our results indicate that …

Modeling Through, Ryan Calo

Articles

Theorists of justice have long imagined a decision-maker capable of acting wisely in every circumstance. Policymakers seldom live up to this ideal. They face well-understood limits, including an inability to anticipate the societal impacts of state intervention along a range of dimensions and values. Policymakers cannot see around corners or address societal problems at their roots. When it comes to regulation and policy-setting, policymakers are often forced, in the memorable words of political economist Charles Lindblom, to “muddle through” as best they can.

Powerful new affordances, from supercomputing to artificial intelligence, have arisen in the decades since Lindblom’s 1959 article …

Classification Of Seismic Activity At The Lazufre Volcanic System, Based On 2011 To 2012 Data, Heather Mcfarlin, Glenn Thompson, Stephen R. Mcnutt, Jochen Braunmiller, Michael E. West

School of Geosciences Faculty and Staff Publications

The Lazufre Volcanic System (LVS), on the border of northern Chile and Argentina, is an active complex of two volcanoes, Lastarria to the north and Cordón del Azufre to the south. The LVS is not regularly monitored with any scientific equipment despite being recognized as a top ten volcanic hazard in Argentina by the Observatorio Argentino de Vigilancia Volcánica of the Servicio Geológico y Minero Argentino. The system has shown unusual inflation signatures observed in InSAR but the level of seismic activity and its spatial and temporal distribution were unknown due to the lack of a permanent local seismic network. …

Scientific Breakdown Of A Ferromagnetic Nanofluid In Hemodynamics: Enhanced Therapeutic Approach, M. M. Bhatti, Sara Abdelsalam

Basic Science Engineering

In this article, we examine the mechanism of cobalt and tantalum nanoparticles through a hybrid fluid model. The nanofluid is propagating through an anisotropically tapered artery with three different configurations; converging, diverging and non-tapered. To examine the rheology of the blood we have incorporated a Williamson fluid model which reveals both Newtonian and non-Newtonian effects. Mathematical and physical formulations are derived using the Lubrication approach for continuity, momentum and energy equations. The impact of magnetic field, porosity and viscous dissipation are also taken into the proposed formulation. A perturbation approach is used to determine the solutions of the formulated nonlinear …

On Behavioral Response Of Ciliated Cervical Canal On The Development Of Electroosmotic Forces In Spermatic Fluid, Sara I. Abdelsalam, A. Z. Zaher

Basic Science Engineering

The goal of this research is to conduct a theoretical investigation about the effect of the electroosmotic forces on the swimming of sperms throughout the cervical canal. To imitate male semen with self-propulsive spermatozoa, a hyperbolic tangent fluid is used as the base liquid. Swimming sperms move inside a ciliated cervical canal and peristalsis occurs due to the ciliated walls. The perturbation method is used to solve the controlling partial differential set of equations analytically. Due to selfpropulsion of swimmers and long wavelength assumption, a creeping flow protocol is used throughout the stream. The stream pattern, velocity distribution, and pressure …

Computational Framework Of Magnetized Mgo–Ni/Water-Based Stagnation Nanoflow Past An Elastic Stretching Surface: Application In Solar Energy Coatings, M, M. Bhatti, O. A. Bég, Sara Abdelsalam

Basic Science Engineering

In this article, motivated by novel nanofluid solar energy coating systems, a mathematical model of hybrid magnesium oxide (MgO) and nickel (Ni) nanofluid magnetohydrodynamic (MHD) stagnation point flow impinging on a porous elastic stretching surface in a porous medium is developed. The hybrid nanofluid is electrically conducted, and a magnetic Reynolds number is sufficiently large enough to invoke an induced magnetic field. A Darcy model is adopted for the isotropic, homogenous porous medium. The boundary conditions account for the impacts of the velocity slip and thermal slip. Heat generation (source)/absorption (sink) and also viscous dissipation effects are included. The mathematical …