Digital Commons Network^™

Soil Microbial Community Dynamics In Response To Prescribed Extreme Fires Following Juniperus Virginiana Invasion In The Loess Canyons Of Nebraska, Julie A. Fowler

School of Natural Resources: Dissertations, Theses, and Student Research

In Nebraska and other regions of the Great Plains, the conifer Juniperus virginiana (eastern redcedar) is converting grasslands to dense woodlands. This is driven by the interacting drivers of fire suppression, altered grazing regimes, climate change and other anthropogenic factors, impacting the provisioning of ecosystem services. This vegetation state transition modifies water resource regulation and biogeochemical cycles leading to altered edaphic properties including soil microbial community composition. To restore these grasslands and control J. virginiana spread, prescribed extreme burns are implemented as a management tool through local prescribed burn associations. We hypothesized that the alternative state transition to dense J. …

Implications From Uranium-Series Disequilibria In A Bi-Lithologic Melt With Varying Lithospheric Caps, Juliet Messer

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Both spreading rates and local magma supply to mid-ocean ridges affect crustal construction styles and ridge morphology, alternately leading to either asymmetrical (detachment faulting) or symmetrical faulting styles. Uranium-series isotopic disequilibria in mid-ocean ridge basalts (MORB) may provide insight into how melt supply variations relate to ridges’ accretion styles, a processes that are not well understood. I use Reactive Porous Flow (RPF) equilibrium and disequilibrium modeling to simulate U-series disequilibria at mid-ocean ridge (MOR) generated by melt supply variations at both asymmetrical and symmetrical ridge segments.

Guided by my modeling, I predict that enhanced melt contributions from enriched pyroxenitic mantle …

Usage Statistics: Project Counter R5 Tr_B1 Report Fy2021 - Book Requests (Excluding Oa_Gold) By Title, Andrée Rathemacher

Technical Services Reports and Statistics

Project COUNTER R5 Report TR_B1 for the University of Rhode Island for the period from July 1, 2020 - June 30, 2021. The TR_B1 report is defined as "Book Requests (Excluding OA_Gold)." This report presents an annual total only and only includes those platforms successfully configured for automated harvesting via SUSHI.

File for download is Excel spreadsheet generated by Alma Analytics.

Results:

• Total Item Requests - 84,955
• Unique Title Requests - 38,932

Fabrication Of Advanced Materials For Chromatography, Sample Preparation, And Separations, And Accompanying Material Characterization, Dhananjay I. Patel

Theses and Dissertations

My dissertation primarily focuses on the fabrication of materials for solid phase microextraction (SPME) and separation devices. In my first project, I used direct current magnetron sputtering (DCMS) to prepare sputtered silicon coatings on fused silica fibers. These fibers were then subjected to the chemical vapor deposition of 6-phenyhexylsilane (6-PH) as a stationary phase. Six different types of fibers were made using two different throw distances (4 cm and 20 cm) and three different silicon thicknesses (0.5, 1.8, and 2.8 µm). These coatings were characterized by time-of-flight secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), …

Usage Statistics: Project Counter R5 Pr_P1 Report Fy2021 - Platform Usage, Andrée Rathemacher

Technical Services Reports and Statistics

Project COUNTER R5 Report PR_P1 for the University of Rhode Island for the period from July 1, 2020 - June 30, 2021. The PR_P1 report is defined as "Platform Usage." This report presents an annual total only and only includes those platforms successfully configured for automated harvesting via SUSHI.

File for download is Excel spreadsheet generated by Alma Analytics.

Results:

• Searches Platform - 353,266
• Total Item Requests - 945,532
• Unique Item Requests - 701,287
• Unique Title Requests - 37,143

Usage Statistics: Project Counter R5 Tr_B1 Report Fy2021 - Book Requests (Excluding Oa_Gold) By Platform, Andrée Rathemacher

Technical Services Reports and Statistics

Project COUNTER R5 Report TR_B1 for the University of Rhode Island for the period from July 1, 2020 - June 30, 2021. The TR_B1 report is defined as "Book Requests (Excluding OA_Gold)." This report presents an annual total only and only includes those platforms successfully configured for automated harvesting via SUSHI.

File for download is Excel spreadsheet generated by Alma Analytics.

Results:

• Total Item Requests - 84,955
• Unique Title Requests - 38,932

Usage Statistics: Project Counter R5 Tr_J1 Report Fy2021 - Journal Requests (Excluding Oa_Gold) By Platform, Andrée Rathemacher

Technical Services Reports and Statistics

Project COUNTER R5 Report TR_J1 for the University of Rhode Island for the period from July 1, 2020 - June 30, 2021. The TR_J1 report is defined as "Journal Requests (Excluding OA_Gold)." This report presents an annual total only and only includes those platforms successfully configured for automated harvesting via SUSHI.

File for download is Excel spreadsheet generated by Alma Analytics.

Results:

• Total Item Requests - 696,705
• Unique Item Requests - 513,492

Weak Cayley Table Groups Of Crystallographic Groups, Rebeca Ann Paulsen

Theses and Dissertations

Let G be a group. A weak Cayley table isomorphism $\phi$: G $\rightarrow$ G is a bijection satisfying two conditions: (i) $phi$ sends conjugacy classes to conjugacy classes; and (ii) $\phi$(g1)$\phi$(g2) is conjugate to $\phi$(g1g2) for all g1, g2 in G. The set of all such mappings forms a group W(G) under composition. We study W(G) for fifty-six of the two hundred nineteen three-dimensional crystallographic groups G as well as some other groups. These fifty-six groups are related to our previous work on wallpaper groups.

Development Of A 2d Numerical Model For Pollutant Transport Using Ftcs Scheme And Numerical Filter, Tias Ravena Maitsa, Qalbi Hafiyyan, Mohammad Bagus Adityawan, Ikha Magdalena, Arno Adi Kuntoro, Hadi Kardhana

Makara Journal of Technology

This study used the finite difference method to develop a numerical model for pollutant transport phenomenon simulation. Mathematically, the phenomenon is often described by the advection–diffusion differential equation, which is obtained from a combination of the continuity equation and Fick’s first law. The Forward Time Central Space (FTCS) scheme is one of the explicit finite difference methods and is used in this study to solve the model due to its simplicity in solving a differential equation. Yet, this method is currently unstable, which results in oscillations in the model. Thus, a numerical filter (Hansen) is added to the FTCS method …

Inflection Points, Kinks, And Jumps: A Statistical Approach To Detecting Nonlinearities, Peren Arin, Maria Minniti, Samuele Murtinu, Nicola Spagnolo

All Works

Inflection points, kinks, and jumps identify places where the relationship between dependent and independent variables switches in some important way. Although these switch points are often mentioned in management research, their presence in the data is either ignored, or postulated ad hoc by testing arbitrarily specified functional forms (e.g., U or inverted U-shaped relationships). This is problematic if we want accurate tests for our theories. To address this issue, we provide an integrative framework for the identification of nonlinearities. Our approach constitutes a precursor step that researchers will want to conduct before deciding which estimation model may be most appropriate. …

Modeling And Optimization Of Spinning Parameters On Selectivity Of Polysulfone Hollow Fiber Membrane For Co2/Ch4 Separation, Intan Zaurah Mat Darus, Shahab Khademi, Musa Mailah, Lau Woei Jye, Alireza Khademi

Makara Journal of Technology

Hollow fiber membrane (HFM) and related technologies have recently become highly in demand and widely used in most industries and other areas recently. HFM could be used in different functions, from water and gas treatment to blood and medical applications. The paper describes the modeling of the effects of the spinning condition of a nonporous HFM on the membrane’s characteristics with the use of an automated hollow fiber fabrication system. An integrated, systematic experimental strategy based on the design of experiments was used to elaborate the effects of each parameter on selectivity. To obtain and sustain a satisfactory, significant selectivity …

Quantification Of Eccentricity In Stems Of Two Species Of Purshia, Lance S. Evans

Western North American Naturalist

Plants of Purshia tridentata and Purshia stansburyana, 2 shrub species from the western United States, naturally display eccentric stem growth. The purpose of this study was to quantitatively document stem eccentricity for these 2 species. Stem segments were obtained from 3 different plants of each species at locations in central Utah. Each stem was sawed into 8-mm sections and photographed for analysis. Every stem section was then marked at a 36° interval to produce 10 wedge-shaped sectors. The areas of each sector were determined and analyzed. Stem segment areas were about 40, 60, and 100 mm² for stem …

The Centennial Of The Pecking Order: Current State And Future Prospects For The Study Of Dominance Hierarchies, Eli D. Strauss, James P. Curley, Daizaburo Shizuka, Elizabeth A. Hobson

School of Biological Sciences: Faculty Publications

A century ago, foundational work by Thorleif Schjelderup-Ebbe described a ‘pecking order’ in chicken societies, where individuals could be ordered according to their ability to exert their influence over their group-mates. Now known as dominance hierarchies, these structures have been shown to influence a plethora of individual characteristics and outcomes, situating dominance research as a pillar of the study of modern social ecology and evolution. Here, we first review some of the major questions that have been answered about dominance hierarchies in the last 100 years.Next,we introduce the contributions to this theme issue and summarize howthey provide ongoing insight in …

Messiness: Automating Iot Data Streaming Spatial Analysis, Christopher White, Atilio Barreda Ii

Publications and Research

The spaces we live in go through many transformations over the course of a year, a month, or a day; My room has seen tremendous clutter and pristine order within the span of a few hours. My goal is to discover patterns within my space and formulate an understanding of the changes that occur. This insight will provide actionable direction for maintaining a cleaner environment, as well as provide some information about the optimal times for productivity and energy preservation.

Using a Raspberry Pi, I will set up automated image capture in a room in my home. These images will …

Academics’ Understandings Of The Literacy Needs Of International Graduate Students, Edwin Creely, Raqib Chowdhury, Jane Southcott

The Qualitative Report

This article critically explores the understandings about the English academic literacy needs of international graduate students from the perspective of academic teaching staff in a Faculty of Education at a large Australian university. Research suggests that international graduate students for whom English is another language, on coming to English speaking countries, acquire English academic literacies as part of a complex set of academic competencies needed for successful graduate study. In this study, 16 academic teaching staff participated in focus groups and revealed their understandings and practices about academic literacies in the context of their experiences of working with international graduate …

Study Of Structural, Magnetic And Magnetocaloric Properties Of (1-X) La0.7ca0.3mno3-Xmo (M = Ni, Cu, Co) Nanocomposites., Surendra Dhungana

Electronic Theses and Dissertations Archive

Manganites have shown potential application as magnetic refrigerants due to the exhibition of near room temperature magnetocaloric effect. High relative cooling power (RCP) values and the easy tunability of magnetic phase transition temperature (Tc), magnetic entropy change (?Sm), and RCP opens up a lot of possibilities for exploring better magnetocaloric materials. Reported literature shows doped manganites and composites with significant improvement in magnetocaloric properties. In this work, we have synthesized (1-x) La0.7Ca0.3MnO3-xMO (x = 2.5%, 5%; M = Ni, Cu, Co), magnetite-metal oxide nanocomposites using a simple autocombustion method. The structural and magnetic measurements have been made to explore the …

Multi-Objective Optimisation Of The Benchmark Wind Farm Layout Problem, Pawel L. Manikowski, David J. Walker, Matthew J. Craven

School of Engineering, Computing and Mathematics

Wind farm layout optimisation has become a very challenging and widespread problem in recent years. In many publications, the main goal is to achieve the maximum power output and minimum wind farm cost. This may be accomplished by applying single or multi-objective optimisation techniques. In this paper, we apply a single objective hill-climbing algorithm (HCA) and three multi-objective evolutionary algorithms (NSGA-II, SPEA2 and PESA-II) to a well-known benchmark optimisation problem proposed by Mosetti et al., which includes three different wind scenarios. We achieved better results by applying single- and multi-objective algorithms. Furthermore, we showed that the best performing multi-objective algorithm …

To Scrutinize The Status Of Library Staff In The High School Libraries In Goa, Pravin Vasant Kamat Mr., Shambhavi Nikhil Joshi Mrs., Nikhil Arvind Joshi Mr.

Library Philosophy and Practice (e-journal)

Few studies have reported the status of high school libraries from Goa. Keeping the importance of early education the present study highlights major issues through qualitative as well as quantitative methods. This study focuses on the library staff of High school libraries, their qualification and pay scale. Librarians in High schools are often treated as non–teaching staff and are given office-related clerical work. The authorities have shown negligence in setting up the required standards for High school libraries in Goa. No proper guidelines are formed which could help librarians to develop their school library. It was found that the majority …

The Effect Of Cellulase On Cell Wall Structure And The Rumen Digestion Of Timothy Silage, A. Aniwaru, T. Ishida, T. Watanabe, K. Tomiyama, H. Terui, K. Ataku, L. E. Chase

IGC Proceedings (1977-2023)

The objective of this study was to determine the effect of additives on the structure changes of related tissues during the ensiling process and the rumen digestion of timothy. In the first cut-timothy, the addition of LC+AC improved the fermentation qualities of the silage. Addition of cellulase resulted in significant decreases in NDF, ADF, cellulose, and hemicellulose content. SEM examination of the samples suggests that the degradation of parenchymal tissues was enhanced by the cellulase, but no significant differences were observed among the additives in the rumen digestion. The NDF and cellulose digestibility of the AC- and LC+AC-treated silages were …

Quality Of Ammoniated Brachiaria Decumbens Hay, L. O. Fernandes, Ricardo A. Reis, L. R. A. Rodrigues

IGC Proceedings (1977-2023)

The experiment was conducted at UNESP-Jaboticabal to evaluate the quality of Brachiaria decumbens hays harvested after seed ripening. The hays were submitted to the following treatments: control, anhydrous ammonia (3.0% NH₃ in the DM), and urea (5.0% in the DM). The chemical composition, digestibility and the performance of steers were evaluated using a complete randomized block design with three treatments and six replications. The ammoniation either with NH3 or urea increased (P< 0.05) the CP content, and the IVDMD. The NH₃ treatment reduced (P < 0.05) the contents of NDF and ADF, and the urea application reduced (P < 0.05) the contents of hemicellulose and lignin. The ammoniation did not affect (P > 0.05) the neutral detergent insoluble nitrogen, and acid detergent insoluble nitrogen values. Steers receiving Brachiaria hay plus soybean meal (1.08 kg DM.day), hay …

Ensiling Of Different Legumes Compared To Grass, S. Slottner, C. Rammer

IGC Proceedings (1977-2023)

The objective of this study was to examine the ensiling characteristics of four different forage legumes: galega (Galega orientalis), lucerne (Medicago sativa), white clover (Trifolium repens) and red clover (Trifolium pratense), and compare these with perennial ryegrass (Lolium perenne), using different additives. The crops were mowed using a sickle bar mower and chopped using a precision chop harvester. The crops were ensiled either direct cut or wilted to 35-45% DM. Wilting took place on a barn drier. Forages were ensiled either untreated or with addition of formic acid, Promyr or …

Lactic Acid Bacteria Isolated From Forage Crops And Silage Fermentation, Yimin Cai, Ryuichi Uegaki, Y. Fujita

IGC Proceedings (1977-2023)

Six strains, Lactobacillus plantarum CM 1, Lactobacillus rhamnosus CM 2, Pediococcus acidilactici CM 4 Enterococcus faecalis CM 5, Leuconostoc pseudomesenteroides CM 7 and Weissella paramesenteroides CM 8 isolated from forage crops were used as additives at 1.0x10⁵ cfu g^-1 of fresh matter to Italian ryegrass and alfalfa, and their effect on silage fermentation was studied. The two silage’s treated with strains CM 1, CM 2 and CM 4 were well preserved; had significantly lower pH values, butyric acid and ammonia N concentrations; and had significantly higher lactic acid content than did the respective control, strains CM 5, CM …

Gr-078 - Ai For Social Good: Assisting The Elderly/Visually Impaired In Reading Prescription Labels, Stacie P. Allen, Jessica Barnes, Lauren Pope, Chennelle Hill

C-Day Computing Showcase

No abstract provided.

Gr-083 - Analysis Of Malware Detection Techniques, Joel Stansbury, Robert White, Keifer Bazan

C-Day Computing Showcase

No abstract provided.

Gr-114 - Decentralized Network Architecture On Git Platform, Jonathan D. Lashgari, Kiran Mai M. Narnavaram, Rohit Gowru

C-Day Computing Showcase

No abstract provided.

Gr-104 - Diabetic Retinopathy Detection Using Deep Neural Networks Without Pre-Processing Techniques, Suman Bharti, Swetha Pailla

C-Day Computing Showcase

No abstract provided.

Gr-121 - Binary Image Processing For Computation Of Connected Components, Image Holes And Euler Number Using Graph Theory, Sravya Sabbu, Prasuna Reddy Salepela, Yamini Hanisha Talluri, Sruthi Vaidyula

C-Day Computing Showcase

No abstract provided.

Gr-129 - Using Machine Learning Techniques For Early Alzheimer’S Disease Detection, Sudarshan Badireddi, Shalaka Kulal, Gayatri Sravanthi Kuntla, Travis Meeks

C-Day Computing Showcase

No abstract provided.

Gr-131 - Privacy Preserved Federated Learning Approach For Diabetic Retinopathy Detection, Mohammad Nasajpour

C-Day Computing Showcase

No abstract provided.

Gr-095 - Using Machine Learning To Detect Alzheimer's Disease, Rhema Razzak, Yang Fu

C-Day Computing Showcase

No abstract provided.