Physical Sciences and Mathematics Commons^™

Partitioning Of Evapotranspiration In Four Grassland Ecosystems With A Two Source Model, Zhongmin Hu, Guirui Yu, Xiaomin Sun

IGC Proceedings (1993-2023)

No abstract provided.

Applications Of Near Infrared Reflectance Spectroscopy In Grassland Science, Yan Liang, He Zhou

IGC Proceedings (1993-2023)

No abstract provided.

Measurement Of Remote Sensing In Desert Plants Recovery, Xia Li, Ting Niu, Yebiao Yin

IGC Proceedings (1993-2023)

No abstract provided.

Geoinformatics Application To Investigate Agricultural Potential In The Cholistan Desert, Farooq Ahmad

IGC Proceedings (1993-2023)

No abstract provided.

Application Of Fractal On Ecosystem In Grassland, Yaxin Chen, Bing Xu, Kezhen Guo, Quanming Liu

IGC Proceedings (1993-2023)

No abstract provided.

Ocean_Data_Tools: A Matlab Toolbox For Interacting With Bulk Freely-Available Oceanographic Data, Laur Ferris

VIMS Articles

ocean_data_tools simplifies the process of extracting, formatting, and visualizing freely-available oceanographic data. A wealth of oceanographic data (from research cruises, autonomous floats, global ocean models, etc.) is accessible online. However, many oceanographers and environmental scientists (particularly those from subdisciplines not accustomed to working with large datasets) can be dissuaded from utilizing this data because of the overhead associated with determining how to batch download data and format it into easily-manipulable data structures. ocean_data_tools solves this problem by allowing the user to transform common oceanographic data sources into uniform structure arrays, call general functions on these structure arrays, perform custom calculations, …

A New Efficient Method To Detect Genetic Interactions For Lung Cancer Gwas, Jennifer Luyapan, Xuemei Ji, Siting Li, Xiangjun Xiao, Dakai Zhu, Eric J. Duell, David C. Christiani, Matthew B. Schabath, Susanne M. Arnold, Shanbeh Zienolddiny, Hans Brunnström, Olle Melander, Mark D. Thornquist, Todd A. Mackenzie, Christopher I. Amos, Jiang Gui

Markey Cancer Center Faculty Publications

BACKGROUND: Genome-wide association studies (GWAS) have proven successful in predicting genetic risk of disease using single-locus models; however, identifying single nucleotide polymorphism (SNP) interactions at the genome-wide scale is limited due to computational and statistical challenges. We addressed the computational burden encountered when detecting SNP interactions for survival analysis, such as age of disease-onset. To confront this problem, we developed a novel algorithm, called the Efficient Survival Multifactor Dimensionality Reduction (ES-MDR) method, which used Martingale Residuals as the outcome parameter to estimate survival outcomes, and implemented the Quantitative Multifactor Dimensionality Reduction method to identify significant interactions associated with age of …

Communicating Uncertain Information From Deep Learning Models In Human Machine Teams, Harishankar V. Subramanian, Casey I. Canfield, Daniel Burton Shank, Luke Andrews, Cihan H. Dagli

Engineering Management and Systems Engineering Faculty Research & Creative Works

The role of human-machine teams in society is increasing, as big data and computing power explode. One popular approach to AI is deep learning, which is useful for classification, feature identification, and predictive modeling. However, deep learning models often suffer from inadequate transparency and poor explainability. One aspect of human systems integration is the design of interfaces that support human decision-making. AI models have multiple types of uncertainty embedded, which may be difficult for users to understand. Humans that use these tools need to understand how much they should trust the AI. This study evaluates one simple approach for communicating …

Corrigendum To “Biosynthesis Of Desferrioxamine Siderophores Initiated By Decarboxylases: A Functional Investigation Of Two Lysine/Ornithine-Decarboxylases From Gordonia Rubripertincta Cwb2 And Pimelobacter Simplex Vkm Ac-2033d” [Arch. Biochem. Biophys. 689 (2020) 108429] (Archives Of Biochemistry And Biophysics (2020) 689, (S0003986120304380), (10.1016/J.Abb.2020.108429)), Marika Hofmann, Julia S. Martin Del Campo, Pablo Sobrado, Dirk Tischler

Chemistry Faculty Research & Creative Works

The authors regret that mistakenly the wrong strain was named in the article title. The decarboxylase gene psdesA originates from Pimelobacter simplex VKM Ac-2033D, not from Pimelobacter simplex 3E. The authors would like to apologize for any inconvenience caused.

Assessment And Integration Of Socioeconomic And Demographic Factors In The Implementation Of Integrated Water Resources Management In The Lake Chad Basin, Nodjidoumde Mbaigoto

USF Tampa Graduate Theses and Dissertations

Most developing countries have responded to the 2002 World Summit on Sustainable Development (WSSD) call to implement Integrated Water Resources Management (IWRM) in their national water policy to reach water sustainability and socioeconomic welfare. Despite the Lake Chad Basin Commission's adoption of the IWRM principles, the basin experiences a massive humanitarian crisis driven by the lake's shrinkage, the water shortage for food production, the rapid population growth, and the terrorist attacks perpetrated by Boko Haram. This study sought to assess the socioeconomic and demographic status of people living upstream of Lake Chad in order to understand the challenges associated with …

The Efficiency And Accuracy Of Yolo For Neonate Face Detection In The Clinical Setting, Jacqueline Hausmann

USF Tampa Graduate Theses and Dissertations

There are many face detection classification models available for download and use in the modern technological world. Based in the field of deep neural networks, these off-the-shelf solutions are generally inadequate to solve real world challenges. This work presents how current approaches biased towards detecting adult human faces must be modified in order to better accommodate face detection of the neonate in a NICU setting.

YOLO is a powerful object detection algorithm. Due to optimizations such as Cross mini-batch Normalization, Modified Spatial Attention Modules, Modified Path Aggregation Networks, Self-Adversarial Training, Mosaic Data Augmentation, DropBox Regularization, Multi-Input Weighted Residual Connections and …

Radiological Identification Of Near‐Surface Mineralogical Deposits Using Low‐Altitude Unmanned Aerial Vehicle, Peter G. Martin, Dean T. Connor, Natalia Estrada, Adel El-Turke, David Megson-Smith, Chris P. Jones, David K. Kreamer, Thomas B. Scott

Geoscience Faculty Research

An ever‐increasing global population and unabating technological growth have resulted in a relentless appetite for mineral resources, namely rare earth elements, fuel minerals and those utilised in electronics applications, with the price of such species continuing to climb. In contrast to more established large‐scale and high‐cost exploration methodologies, this work details the application of novel multi‐rotor unmanned aerial vehicles equipped with miniaturised radiation detectors for the objective of undertaking resource exploration at lower costs, with greater autonomy and at considerably enhanced higher spatial resolutions; utilizing the ore material’s inherent low levels of characteristic radioactivity. As we demonstrate at the former …

Grassland And Water Resources: Recent Trends And Future Challenges In Temperate Zones, Benoît Marc

IGC Proceedings (1993-2023)

No abstract provided.

Rangeland Management And Hydrology, K. Wood, H. Rubio, C. Wood

IGC Proceedings (1993-2023)

No abstract provided.

Restoration Of Vegetation And Soil Nutrients On The Northern Area Of Loess Plateau, Long Bai, L. M. Liu, B. Zhao, Y. Liu, H. X. Wang, T. Kobayashi

IGC Proceedings (1993-2023)

No abstract provided.

Determination Of Intensity And Socio‐Economic Natural Resources Degradation Factors In Iran Territory, Nasser Ansari, S. J. Sayedaghlaghi, M. H. Ghasemi

IGC Proceedings (1993-2023)

No abstract provided.

Influence Of Exclosure Year On Community Structure And Species Diversity On Typical Steppe, G. L. Shan, Zhu Xu, David R. Kemp, F. Ning

IGC Proceedings (1993-2023)

No abstract provided.

S3e7: Did Climate Impact Wwi, Spanish Flu Casualties?, Ron Lisnet, Paul A. Mayewski, Alex More

The Maine Question

Incessant torrential rain and cold air over Europe from 1914 to 1919 likely increased the number of people who died during World War I (22 million) and the Spanish flu pandemic (50 million). Alex More and Paul Mayewski from the Climate Change Institute connected data from climate science, history and public health to make the discovery. The colleagues say the once-in-a-century climate anomaly may have been caused by dust and explosives from the war that impacted the local atmosphere. As we anticipate another wave of COVID-19, More says we should be mindful of the interconnectedness of human-caused climate change, environmental …

Access: Confirmation Of No Potassium In The Atmosphere Of Wasp-31b, Chima D. Mcgruder, Mercedes López-Morales, Néstor Espinoza, Benjamin V. Rackham, Dániel Apai, Andrés Jordán, David J. Osip, Munazza K. Alam, Alex Bixel, Jonathan J. Fortney, Gregory W. Henry, James Kirk, Nikole K. Lewis, Florian Rodler, Ian C. Weaver

Information Systems and Engineering Management Research Publications

We present a new optical (400–950 nm) transmission spectrum of the hot Jupiter WASP-31b (M = 0.48 MJ; R = 1.54 RJ; P = 3.41 days), obtained by combining four transit observations. These transits were observed with IMACS on the Magellan Baade Telescope at Las Campanas Observatory as part of the ACCESS project. We investigate the presence of clouds/hazes in the upper atmosphere of this planet, as well as the contribution of stellar activity on the observed features. In addition, we search for absorption features of the alkali elements Na i and K i, with particular focus on K i, …

Internet Of Texas Water Data: Use Cases For Flood, Drought, And Surface Water – Groundwater Interactions, Rudolph A. Rosen, Robert E. Mace, Sam Marie Hermitte, Richard Wade

Water Resources Science and Technology Faculty Publications

Experts representative of Texas’ water sectors identified critical water data needs and described the design of a comprehensive open access data system that facilitates use of public water data in Texas at the April 2018 Connecting Texas Water Data Workshop as reported in the Texas Water Journal. Participants described potential use cases to initiate work on the most critical data hubs for connecting Texas water data. This note is an update to work on the Internet of Texas Water Data initiative that describes progress on a flood dashboard by the Texas Water Development Board and development of use cases by …

Combating Acquired Resistance To Mapk Inhibitors In Melanoma By Targeting Abl1/2-Mediated Reactivation Of Mek/Erk/Myc Signaling, Rakshamani Tripathi, Zulong Liu, Aditi Jain, Anastasia Lyon, Christina Meeks, Dana Richards, Jinpeng Liu, Daheng He, Chi Wang, Marika Nespi, Andrey Rymar, Peng Wang, Melissa Wilson, Rina Plattner

Pharmacology and Nutritional Sciences Faculty Publications

Metastatic melanoma remains an incurable disease for many patients due to the limited success of targeted and immunotherapies. BRAF and MEK inhibitors reduce metastatic burden for patients with melanomas harboring BRAF mutations; however, most eventually relapse due to acquired resistance. Here, we demonstrate that ABL1/2 kinase activities and/or expression are potentiated in cell lines and patient samples following resistance, and ABL1/2 drive BRAF and BRAF/MEK inhibitor resistance by inducing reactivation of MEK/ERK/MYC signaling. Silencing/inhibiting ABL1/2 blocks pathway reactivation, and resensitizes resistant cells to BRAF/MEK inhibitors, whereas expression of constitutively active ABL1/2 is sufficient to promote resistance. Significantly, nilotinib (2nd generation …

Climate-Induced Variability In South Atlantic Wave Direction Over The Past Three Millennia, A. P. Silva, A. H. F. Klein, A. F. H. Fetter-Filho, Christopher J. Hein, Et Al

VIMS Articles

Through alteration of wave-generating atmospheric systems, global climate changes play a fundamental role in regional wave climate. However, long-term wave-climate cycles and their associated forcing mechanisms remain poorly constrained, in part due to a relative dearth of highly resolved archives. Here we use the morphology of former shorelines preserved in beach-foredune ridges (BFR) within a protected embayment to reconstruct changes in predominant wave directions in the Subtropical South Atlantic during the last ~ 3000 years. These analyses reveal multi-centennial cycles of oscillation in predominant wave direction in accordance with stronger (weaker) South Atlantic mid- to high-latitudes mean sea-level pressure gradient …

Control Of A Human Arm Robotic Unit Using Augmented Reality And Optimized Kinematics, Carlo Canezo

USF Tampa Graduate Theses and Dissertations

There are more than 350000 amputees in the US who suffer loss of functionality in their daily living activities, and roughly 100000 of them are upper arm amputees. Many of these amputees use prostheses to compensate part of their lost arm function, including power prostheses. Research on 6-7 degree of freedom powered prostheses is still relatively new, and most commercially available powered prostheses are typically limited to 1 to 3 degrees of freedom. Due to the myriad of possible options for various powered protheses from different manufacturers, each configuration is governed by a distinct control scheme typically specific to the …

Odu Researchers Work With Pamunkey Tribe To Address Sea Level Rise On Its Lands, Amy Matzke-Fawcett

News Items

No abstract provided.

The Quantification Of Heavy Metals In Infant Formulas Offered By The Florida Wic Program, Naya Martin

USF Tampa Graduate Theses and Dissertations

Many infants rely on the WIC program to provide their main source of sustenance in theform of infant formula. In 2016, about 86% of the eligible infant population participated in this program. Infants in Florida account for about 30% of participation in the Southeast. For this reason, it is necessary to ensure that the formulas offered by this program provide the best opportunity for an optimal health outcome.

Exposure to heavy metals can have detrimental effects on the development of infants and children. Arsenic, lead, and cadmium specifically have been commonly found in certain types of infant formulas. Significant exposures …

Global Air Quality Trekkers: Nandi Clean Kitchen Study, Samantha Dykhuis, Stephanie Schiavo, Avalin Senefeld

Purdue Journal of Service-Learning and International Engagement

Indoor air pollution is a widespread environmental health challenge sub-Saharan Africa and is the leading cause of premature death in many sub-Saharan African countries. This pollution is primarily caused by the burning of biomass fuels inside an enclosed kitchen in order to provide heat for cooking. Global Air Quality Trekkers is an undergraduate engineering team within the EPICS department at Purdue that began in fall 2016. Our objective is to create a kitchen design that utilizes natural ventilation to mitigate the amount of air pollutants present in these kitchens, specifically in the Nandi community of Western Kenya. This year, our …

Quaternions And Matrices Of Quaternions, Fuzhen Zhang

Mathematics Colloquium Series

Quaternions comprise a noncommutative division algebra (skew field). As part of contemporary mathematics, they find uses not only in theoretical and applied mathematics but also in computer graphics, control theory, signal processing, physics, and mechanics. Speaker, N S U Professor, Fuzhen Zhang reviews basic theory on quaternions and matrices of quaternions, presents important results, proposes open questions, and surveys recent developments in the area.

Rangeland Monitoring And Adaptive Management, T. J. Bai, Y. Q. Liang

IGC Proceedings (1993-2023)

No abstract provided.

Patch Selection By Cattle Can Be Quantified Using Satellite Imagery And Gps In Extensive, Semi-Arid Savannas, Christopher Holloway, Peter O'Reagain, Nigel Tomkins

IGC Proceedings (1993-2023)

No abstract provided.

Monitoring Natural Pasture Status In Uruguay Using Satellite Images And A Soil Water Balance Model, J. P. Castaño, A. Giménez, L. Olivera

IGC Proceedings (1993-2023)

No abstract provided.