Physical Sciences and Mathematics Commons^™

Compost And Biochar To Promote Soil Biological Activities Under Sweet Potatoes Cultivation In A Subtropical Semiarid Region, Josabeth Navarro, Jahdiel Salazar, James Jihoon Kang, Jason Parsons, Chu-Lin Cheng, Alexandria Castillo, Engil Isadora Pujol Pereira

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

South Texas is located in a subtropical semiarid climate, and due to high temperature and irregular precipitation, farmers opt to leave their fields fallow during the summer months jeopardizing overall soil health. We evaluated whether sweet potato (Ipomoea batatas) cultivation coupled with drip irrigation could restore soil biological activities compared with bare fallow. Additionally, because sweet potatoes have high demand of soil nutrients, especially potassium (K), we evaluated the nutrient supply of locally sourced soil amendments. Sweet potato was cultivated during summer 2018 in McAllen, Texas, under control (no fertilizer), NPK (synthetic fertilizer), RC (yard-waste compost), and AC (compost produced …

Functional Kernel Density Estimation: Point And Fourier Approaches To Time Series Anomaly Detection, Michael R. Lindstrom, Hyuntae Jung, Denis Larocque

School of Mathematical and Statistical Sciences Faculty Publications and Presentations

We present an unsupervised method to detect anomalous time series among a collection of time series. To do so, we extend traditional Kernel Density Estimation for estimating probability distributions in Euclidean space to Hilbert spaces. The estimated probability densities we derive can be obtained formally through treating each series as a point in a Hilbert space, placing a kernel at those points, and summing the kernels (a “point approach”), or through using Kernel Density Estimation to approximate the distributions of Fourier mode coefficients to infer a probability density (a “Fourier approach”). We refer to these approaches as Functional Kernel Density …

Lithofacies, Sequence Stratigraphy, And Sedimentology Of Desert Creek Platform, Slope, And Basin Carbonates, Southern Margin Of The Aneth Complex, Middle Pennsylvanian, Paradox Basin, Utah, Christopher M. Perfili

Theses and Dissertations

The Aneth Field in the Paradox Basin (SE Utah) has produced nearly 500 MMbbls of oil from phylloid-algal and oolitic carbonate reservoirs of the lower and upper Desert Creek (Paradox Formation, Middle Pennsylvanian) sequences, respectively. The oil resides in a 150 to 200 foot-thick isolated carbonate platform located in a distal ramp setting on the southwest margin of the Paradox Basin. The horseshoe-shaped platform is roughly 12 miles in diameter with an aerial extent of approximately 144 square miles. Evaluation of the platform-to-basin transition on the leeward (southern) margin of the Aneth Platform, the focus of this study, was made …

توظيف تكنولوجيا المعلومات في إدارة المخاطر البيئية: دراسة تقويمية في الشركة العامة لصناعة الزيوت النباتية, Sahar Kaddouri

Al Jinan الجنان

Risks Environmental Management engage an increasing number of persons from different fields .The management and safeguarding of our environment by business not only an important issue in today’s society ,but also a challenge for the different enterprises to turn environmental concerns into new business opportunities .In this respect ,Risks Environmental Management is key element in achieving developing countries .Better access to good quality information and Environmental data is prerequisite for improved Risks Environmental Management .
This research aims to describe how information technology can be used in Risks Environmental Management ? Through the answers based on the questions that research …

Characterizing El Niño-Southern Oscillation Effects On The Blue Nile Yield And The Nile River Basin Precipitation Using Empirical Mode Decomposition, Justin A. Le, Hesham El-Askary, Mohamed Allali, Eman Sayed, Hani Sweliem, Thomas C. Piechota, Daniele C. Struppa

Mathematics, Physics, and Computer Science Faculty Articles and Research

Using new mathematical and data-driven techniques, we propose new indices to measure and predict the strength of different El Niño events and how they affect regions like the Nile River Basin (NRB). Empirical Mode Decomposition (EMD), when applied to Southern Oscillation Index (SOI), yields three Intrinsic Mode Functions (IMF) tracking recognizable and physically significant non-stationary processes. The aim is to characterize underlying signals driving ENSO as reflected in SOI, and show that those signals also meaningfully affect other physical processes with scientific and predictive utility. In the end, signals are identified which have a strong statistical relationship with various physical …

Urinary‐Nitrogen Output By Dairy Cows In Conventional And Organic Grazing Systems, I. M. Brookes, David J. Horne, A. R. Thatcher

IGC Proceedings (1993-2023)

No abstract provided.

Potential Economic Benefit Of Intensification Of Beef Production In Australian Rangelands: An Operational Case Study Perspective, Mark A. Best

IGC Proceedings (1993-2023)

No abstract provided.

Nguni--A New Old Cattle Breed For Rangelands In Communal Areas Of South Africa, Wolfgang Bayer, Brigid Letty, Rauri Alcock

IGC Proceedings (1993-2023)

No abstract provided.

Effect Of Community Grazing Regulation On Degraded Grasslands In Inner Mongolia, Ian Auldist, Zihong Chen, E. Erdun Baolige

IGC Proceedings (1993-2023)

No abstract provided.

Legumes Versus Nitrogen Fertilizer To Increase Production From Warm‐Season Grass Pastures, Bruce Anderson

IGC Proceedings (1993-2023)

No abstract provided.

Can We Really Understand Our Grasslands With Short-Term Experiments?, Vivien G. Allen, David R. Kemp, David L. Michalk

IGC Proceedings (1993-2023)

No abstract provided.

Ecosystem Response To Cell Grazing In Australian Rangelands, B. M. Alchin, M. Page, O. Bosch

IGC Proceedings (1993-2023)

No abstract provided.

Relationships Between Pasture Management Inputs And Pasture Consumption Rates In Non‐Irrigateddairy Systems In South‐Eastern Australia, J. Tharmaraj, D. F. Chapman, J. Hill

IGC Proceedings (1993-2023)

No abstract provided.

Comparison Of Grazing Behaviour Between Goat And Sheep In A Steppe Rangeland Of Iran, Abbasali Sanadgol, Leili Abolhassani, Hosein Bagheri

IGC Proceedings (1993-2023)

No abstract provided.

Supplementary Feed To Improve The Production Of Dairy Cattle Under Zero Grazing Condition In Bangladesh, M. A. S. Khan, M. A. Islam

IGC Proceedings (1993-2023)

No abstract provided.

A Model For Massless Gravitons In Radiation And Matter Dominated Universes, Ioannis Haranas, Eli Cavan, Ioannis Gkigkitzis

Physics and Computer Science Faculty Publications

A massless model of the graviton is explored by considering the minimum amount of information they can carry. The total entropy of the universe is calculated and compared to estimates from Super Massive Black holes and massive models of the graviton. The running cosmological constant is calculated using the entropy relation previously computed and compared to its experimentally accepted value. Both results are quantified considering radiation and matter dominated universes.

Essays In Monetary Policy For Emergingmarket Economies., Sargam Gupta Dr.

Doctoral Theses

The eectiveness of monetary policy in emerging market economies (EMEs) depends on both internal and external factors. Central banks in EMEs have been grappling with volatile capital ows and instability in exchange rates, as a result of unconventional monetary policies adopted by advanced economies (AEs) in the post Global Financial Crisis (GFC) period of 2008-2009 (see Dedola et al. (2017) and Korinek (2018)).1 Concerns related to the inadequacy of monetary policy in EMEs in stabilizing exchange rates have also been raised in a recent speech delivered by Agustin Carstens at the London School of Economics.2 Domestically, what makes monetary policy …

Subnormality Of Powers Of Multivariable Weighted Shifts, Sang Hoon Lee, Woo Young Lee, Jasang Yoon

School of Mathematical and Statistical Sciences Faculty Publications and Presentations

Given a pair of commuting subnormal Hilbert space operators, the Lifting Problem for Commuting Subnormals (LPCS) asks for necessary and sufficient conditions for the existence of a commuting pair of normal extensions of and ; in other words, is a subnormal pair. The LPCS is a longstanding open problem in the operator theory. In this paper, we consider the LPCS of a class of powers of -variable weighted shifts. Our main theorem states that if a “corner” of a 2-variable weighted shift is subnormal, then is subnormal if and only if a power is subnormal for some . As a …

Covariant Quantum White Noise From Light-Like Quantum Fields, Radhakrishnan Balu

Journal of Stochastic Analysis

No abstract provided.

Statistical Methods With A Focus On Joint Outcome Modeling And On Methods For Fire Science, Da Zhong Xi

Electronic Thesis and Dissertation Repository

Understanding the dynamics of wildfires contributes significantly to the development of fire science. Challenges in the analysis of historical fire data include defining fire dynamics within existing statistical frameworks, modeling the duration and size of fires as joint outcomes, identifying the how fires are grouped into clusters of subpopulations, and assessing the effect of environmental variables in different modeling frameworks. We develop novel statistical methods to consider outcomes related to fire science jointly. These methods address these challenges by linking univariate models for separate outcomes through shared random effects, an approach referred to as joint modeling. Comparisons with existing …

The Vimentin Cytoskeleton: When Polymer Physics Meets Cell Biology, Alison E. Patteson, Robert J. Carroll, Daniel V. Iwamoto, Paul A. Janmey

Physics - All Scholarship

The proper functions of tissues depend on the ability of cells to withstand stress and maintain shape. Central to this process is the cytoskeleton, comprised of three polymeric networks: F-actin, microtubules, and intermediate filaments (IFs). IF proteins are among the most abundant cytoskeletal proteins in cells; yet they remain some of the least understood. Their structure and function deviate from those of their cytoskeletal partners, F-actin and microtubules. IF networks show a unique combination of extensibility, flexibility and toughness that confers mechanical resilience to the cell. Vimentin is an IF protein expressed in mesenchymal cells. This review highlights exciting new …

The M Supergiant High-Mass X-Ray Binary 4u 1954+31, Kenneth H. Hinkle, Thomas Lebzelter, Francis C. Fekel, Oscar Straniero, Richard Joyce, Lisa Prato, Nicole Karnath, Nolan Habel

Information Systems and Engineering Management Research Publications

The X-ray binary 4U 1954+31 has been classified as a low-mass X-ray binary containing an M giant and a neutron star (NS). It has also been included in the rare class of X-ray symbiotic binaries. The Gaia parallax, infrared colors, spectral type, abundances, and orbital properties of the M star demonstrate that the cool star in this system is not a low-mass giant but a high-mass M supergiant. Thus, 4U 1954+31 is a high-mass X-ray binary (HMXB) containing a late-type supergiant. It is the only known binary system of this type. The mass of the M I is ${9}_{-2}^{+6}$ M⊙ …

Characterization Of Pathogen Airborne Inoculum Density By Information Theoretic Analysis Of Spore Trap Time Series Data, Robin A. Choudhury, Neil Mcroberts

School of Earth, Environmental, and Marine Sciences Faculty Publications and Presentations

In a previous study, air sampling using vortex air samplers combined with species-specific amplification of pathogen DNA was carried out over two years in four or five locations in the Salinas Valley of California. The resulting time series data for the abundance of pathogen DNA trapped per day displayed complex dynamics with features of both deterministic (chaotic) and stochastic uncertainty. Methods of nonlinear time series analysis developed for the reconstruction of low dimensional attractors provided new insights into the complexity of pathogen abundance data. In particular, the analyses suggested that the length of time series data that it is practical …

Biosynthetic Gene Clusters, Microbiomes, And Secondary Metabolites In Cold Water Marine Organisms, Nicole Elizabeth Avalon

USF Tampa Graduate Theses and Dissertations

Microorganisms and invertebrate animals from cold water marine environments, such as in Antarctica and in Ireland’s deep sea, are a rich source of secondary metabolites. In this dissertation, research was centered around secondary metabolism and natural product biosynthesis. The projects include the delineation of biosynthetic gene clusters hypothesized to be responsible for the biosynthesis of the palmerolides, stratification of the microbiome of the Antarctic ascidian Synoicum adareanum, genomic and peptidomic analysis of a host-associated Antarctic Pseudovibrio sp., and isolation and characterization of secondary metabolites from the Irish deep-sea coral Drifa sp.

Palmerolide A, the principle secondary metabolite associated with S. …

Effect Of High And Low Pasture Allowance During Pregnancy On Ewe Lamb Pregnancy Performance, Paul R. Kenyon, F. J. Mulvaney, Stephen T. Morris, D. M. West

IGC Proceedings (1993-2023)

No abstract provided.

Lamb Growth On Leaf Turnips, White Clover And Pasture In Summer, C. L. Lindsay, Peter D. Kemp, Paul R. Kenyon, Stephen T. Morris, A. J. Wall

IGC Proceedings (1993-2023)

No abstract provided.

Response Of Plantain And Chicory To Frequency And Intensity Of Cutting, Y. Yu, M. X. Long, D. W. Zhou, Peter D. Kemp

IGC Proceedings (1993-2023)

No abstract provided.

Use Of Ethnoveterinary Plants By Indigenous Rangeland Community Of Kanyakumari District, Tamil Nadu, India, D. Kannan, S. Jeeva

IGC Proceedings (1993-2023)

No abstract provided.

Production System Elements Related To Fat Distribution In Beef Steers, J. W. Holloway, E. K. Bumpus, J. Sawyer, B. G. Warrington, R. R. Scott, T. D. A. Forbes

IGC Proceedings (1993-2023)

No abstract provided.

Effect Of Lockdown On Hcho And Trace Gases Over India During March 2020, Akshansha Chauhan, Ramesh P. Singh

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

COVID-19 is one of the deadly Epidemics that has impacted people living in more than 200 countries. In order to mitigate the impact of COVID-19, India observed total lockdown in the first phase for a period of 21 days (24 March–13 May 2020), so that social distancing is maintained. However, this sudden decision severely affected the normal life of people. The air quality improved due to lockdown, some relaxation was given in different cities and within some areas in the city where the people were not affected by COVID-19. In this paper, we discuss results of detailed analysis of trace …