Physical Sciences and Mathematics Commons^™

Input–Output Analysis Of Virtual Water Transfers: Case Study Of California And Illinois, Stanley Mubako

Stanley Mubako

No abstract provided.

Agricultural Virtual Water Trade And Water Footprint Of U.S. States, Stanley Mubako

Stanley Mubako

No abstract provided.

Winter Climatology Of Short-Period Polar Mesospheric Gravity Waves Observed Over Poker Flat Research Range, Alaska (65 N, 147 W), Michael R. Negale, Kim Nielsen, Mike J. Taylor, Dominique Pautet

Michael Negale

Short-period gravity wave observations over the Arctic region are few and their impact on the Arctic mesosphere lower thermosphere region via momentum deposition is of high interest. The Mesospheric Airglow Imaging and Dynamics project was initiated in January 2011 to investigate the presence and dynamics of these waves over the interior of Alaska. Observations were made from Poker Flat Research Range (PFRR) using an all-sky imager. This site provides an exceptional opportunity to establish a long-term climatology of short-period gravity waves in the Arctic Region. We present summary measurements of prominent gravity waves over two consecutive winters and compare their …

Local Fractional Variational Iteration Method For Fractal Heat Transfer In Silk Cocoon Hierarchy, Ji-Huan He

Ji-Huan He

A local fractional equation is established for fractal heat transfer in silk cocoon hierarchy, and the local fractional variational iteration method is adopted to solve the equation analytically. The result can well explain the intriguing phenomenon for pupa's survival at extremes of weather from negative 40 degrees to 50 degrees.

Evaluation Of The In Situ Ichthyoplankton Imaging System (Isiis): Comparison With The Traditional (Bongo Net) Sampler, Robert K. Cowen, Adam T. Greer, Cedric M. Guigand, Jonathan A. Hare, David E. Richardson, Harvey J. Walsh

Adam T. Greer

Plankton and larval fish sampling programs often are limited by a balance between sampling frequency (for precision) and costs. Advancements in sampling techniques hold the potential to add considerable efficiency and, therefore, add sampling frequency to improve precision. We compare a newly developed plankton imaging system, In Situ Ichthyoplankton Imaging System (ISIIS), with a bongo sampler, which is a traditional plankton sampling gear developed in the 1960s. Comparative sampling was conducted along 2 transects ~30–40 km long. Over 2 days, we completed 36 ISIIS tow-yo undulations and 11 bongo oblique tows, each from the surface to within 10 m of …

A Targeted Confounder Selection Strategy For Propensity Score Estimation, Susan Gruber

Susan Gruber

These slides provide an introduction to data-adaptive propensity score estimation, and the collaborative targeted maximum likelihood estimator (C-TMLE) of van der Laan and Gruber. The notation has been greatly simplified, which makes the work accessible to a more general audience, but loses a little in the translation.

An Overview Of Targeted Maximum Likelihood Estimation, Susan Gruber

Susan Gruber

These slides provide an introduction to targeted maximum likelihood estimation in a point treatment setting.

Relationship Between Water Withdrawals And Freshwater Ecosystem Water Scarcity Quantified At Multiple Scales For A Great Lakes Watershed, Stanley Mubako

Stanley Mubako

No abstract provided.

Reversible Water Weakening Of Quartz, Caleb Holyoke, Andreas Kronenberg

Caleb Holyoke

No abstract provided.

High Pressure Deformation Experiments Using Solid Confining Media And Griggs Piston-Cylinder Methods: Appraisal Of Stress And Deformation In Talc Assemblies, Eric Stewart, Caleb Holyoke, Andreas Kronenberg

Caleb Holyoke

No abstract provided.

Dislocation Creep Of Polycrystalline Dolomite, Caleb Holyoke, Andreas Kronenberg, Julie Newman

Caleb Holyoke

No abstract provided.

Hydrolytic Weakening Of Olivine At Mantle Pressure: Evidence Of [100](010) Slip System Softening From Single-Crystal Deformation Experiments, Jennifer Girard, Jiuhua Chen, Paul Raterron, Caleb Holyoke

Caleb Holyoke

No abstract provided.

Gravity And Universe, Vildyan Shavkyatovich Yanbikov

Vildyan Shavkyatovich Yanbikov

In the proposed study shows phenomenological model shielding gravitational fields of the protons of the cosmos. The screening of gravity in space is based on the principle that any elementary particle with the mass of rest and located in the free the fall of escapes all gravitational fields in which it is located. The study determined the intensity of the gravitational field of the infinite space half-space. Determined by the effective cross-section proton screening the gravitational field of the cosmos. Defined radius the action of gravitational forces in the cosmos. A formula is obtained which determines the distance to the …

The Computation Of Cyclic Peptide With Prolin-Prolin Bond As Fusion Inhibitor Of Denv Envelope Protein Through Molecular Docking And Molecular Dynamics Simulation, Arli A. Parikesit, Hilyatuz Zahroh, Andreas S. Nugroho, Amalia Hapsari, Usman Sumo F. Tambunan

Arli A Parikesit

A disease that caused by dengue virus (DENV) has become the major health problem of the world. Nowadays, no effective treatment is available to overcome the disease due to the level of dengue virus pathogeneses. A novel treatment method such as antiviral drug is highly necessary for coping with the dengue disease. Envelope protein is one of the non-structural proteins of DENV, which engaged in the viral fusion process. It penetrates into the host cell to transfer its genetic material into the targeted cell followed by replication and establishment of new virus. Thus, the envelope protein can be utilized as …

Cmaf - Chris Morphological Adaptive Filter, Przemysław Kupidura

Przemysław Kupidura

The paper presents a new method of CHRIS images filtering. The presented algorithm is based on mathematical morphology operations and allows to correct the main CHRIS images noise types, like missing pixels and vertical stripes caused by a malfunctioning of the device. the algorithm is preceded by the brief discussion on the nature of the noise and the basis of mathematical morphology. The resulting images are compared to the results of application of other types of CHRIS-dedicated algorithms (Settle methods).

Technology Enhanced Learning With Open Source Software For Scientists And Engineers, Maurice Dawson, Imad Al Saeed, Jorja Wright, Mrwan Omar

Maurice Dawson

This paper represents the evaluation and integration of Open Source Software (OSS) technologies to enhance the learning of engineers and scientists within the university. The utilization of OSS is essential as costs around the world continue to rise for education, institutions must become innovative in the ways they teach and grow Science, Technology, Engineering, & Mathematics (STEM) majors. To do this effectively professors and administrative staff should push toward the utilization of OSS and other available tools to enhance or supplement currently available tools with minimal integration costs. The OSS applications would allow students the ability to learn critical technological …

Importance Of Integrating Information Technology Related Curriculum In American Inner City Schools, Jorja Wright, Maurice E. Dawson Jr.

Maurice Dawson

This paper examines the significance of integrating Information Technology (IT) into the inner city K - 12 educational curriculum. Educational curriculum reform is eminent due to the major breakthroughs in technology, including mobile internet, digital textbooks, and cloud computation. Currently, some educational systems are starting to utilize IT. Examples of this are seen with: Technology- based educational reform efforts such as Huntsville City Schools Laptop Initiative and Geospatial Information Technology (GIT); Software-focused initiatives such as Apple Textbook Initiative and Barnes and Noble e-book editions for Nook; finally, structured/standardized professional development workshops or courses such as the Library of Congress Teaching …

Dod Cyber Technology Policies To Secure Automated Information Systems, Maurice E. Dawson Jr., Miguel Crespo, Stephen Brewster

Maurice Dawson

Availability, integrity, and confidentiality (AIC) is a key theme everywhere as cyber security has become more than an emerging topic. The Department of Defense (DoD) has implemented multiple processes such as the Department of Defense information assurance certification and accreditation process (DIACAP), common criteria (CC), and created proven baselines to include information assurance (IA) controls to protect information system (IS) resources. The aim of this research study shall provide insight to the applicable processes, IA controls, and standards to include providing a method for selecting necessary government models and for system development.

The Future Prospects Of Embedded Microchips In Humans As Unique Identifiers: The Risks Versus The Rewards, Katina Michael, M.G. Michael

Professor Katina Michael

Microchip implants for humans are not new. Placing heart pacemakers in humans for prosthesis is now considered a straightforward procedure. In more recent times we have begun to use brain pacemakers for therapeutic purposes to combat illnesses such as epilepsy, Parkinson’s Disease, and severe depression. Microchips are even being placed inside prosthetic knees and hips during restorative procedures to help in the gathering of post-operative analytics that can aid rehabilitation further. While medical innovations that utilise microchips abound, over the last decade we have begun to see the potential use of microchip implants for non-medical devices in humans, namely for …

Bayesian Approaches To Copula Modelling, Michael S. Smith

Michael Stanley Smith

Copula models have become one of the most widely used tools in the applied modelling of multivariate data. Similarly, Bayesian methods are increasingly used to obtain efficient likelihood-based inference. However, to date, there has been only limited use of Bayesian approaches in the formulation and estimation of copula models. This article aims to address this shortcoming in two ways. First, to introduce copula models and aspects of copula theory that are especially relevant for a Bayesian analysis. Second, to outline Bayesian approaches to formulating and estimating copula models, and their advantages over alternative methods. Copulas covered include Archimedean, copulas constructed …

Aging Population Scenarios: An Australian Experience, Chris Lloyd

Chris J. Lloyd

One element of the analysis of adaptive clinical trials is combining the evidence from several (often two) stages. When the endpoint is binary, standard single stage tests statistics do not control size well. Yet the combined test might not be valid if the single stage tests are not. The purpose of this paper is to numerically and theoretically examine the extent to which combining basic tests statistics mitigates or magnifies the size violation of the final test.

Energy And Environment Policy Case For A Global Project, Thomas A. Faunce

Thomas A Faunce

A policy case is made for a global project on artificial photosynthesis including its scientific justification, potential governance structure and funding mechanisms.

Determination Of Kinetic Parameters From The Thermogravimetric Data Set Of Biomass Samples, Karol Postawa, Wojciech M. Budzianowski

Wojciech Budzianowski

This article describes methods of the determination of kinetic parameters from the thermogravimetric data set of biomass samples. It presents the methodology of the research, description of the needed equipment, and the method of analysis of thermogravimetric data. It describes both methodology of obtaining quantitative data such as kinetic parameters as well as of obtaining qualitative data like the composition of biomass. The study is focused mainly on plant biomass because it is easy in harvesting and preparation. Methodology is shown on the sample containing corn stover which is subsequently pyrolysed. The investigated sample show the kinetic of first order …

Romans 1:18-2:29: A Stylometric Reconsideration, Keith L. Yoder

Keith L. Yoder

Temperature-Dependent Absorption Cross-Section Measurements Of 1-Butene (1-C4h8) In Vuv And Ir, Et-Touhami Es-Sebbar, Yves Benilan, Aamir Farooq

Dr. Et-touhami Es-sebbar

Vacuum ultraviolet (VUV) and infrared (IR) absorption cross-section measurements of 1-butene (1-C4H8; CH2=CHCH2CH3; Butylene) are reported over the temperature range of 296–529 K. The VUV measurements are performed between 115 and 205 nm using synchrotron radiation as a tunable VUV light source. Fourier Transform Infrared (FTIR) spectroscopy is employed to measure absorption cross-section and band strengths in the IR region between 1.54 and 25 μm (∼6500–400 cm−1). The measured room-temperature VUV and IR absorption cross-sections are compared with available literature data and are found to be in good agreement. The oscillator strength for the electronic transition (A1A′→X1A′) around 150–205 nm …

Bayesian Methods For Expression-Based Integration, Elizabeth M. Jennings, Jeffrey S. Morris, Raymond J. Carroll, Ganiraju C. Manyam, Veera Baladandayuthapani

Jeffrey S. Morris

We propose methods to integrate data across several genomic platforms using a hierarchical Bayesian analysis framework that incorporates the biological relationships among the platforms to identify genes whose expression is related to clinical outcomes in cancer. This integrated approach combines information across all platforms, leading to increased statistical power in finding these predictive genes, and further provides mechanistic information about the manner in which the gene affects the outcome. We demonstrate the advantages of the shrinkage estimation used by this approach through a simulation, and finally, we apply our method to a Glioblastoma Multiforme dataset and identify several genes potentially …

Energy Transitions In Kenya's Tea Sector: A Wind Energy Assessment, Erik Edward Nordman

Erik Edward Nordman

Kenya’s tea sector provides livelihoods for more than 500,000 farmers but energy access in the region remains limited. Clean, affordable distributed energy systems could transform the tea-growing regions by lowering tea production costs and increasing farmer profits. On-site generation could power tea factories and enhance grid stability by reducing electricity draw from the grid. Wind power’s potential in Kenya’s tea regions is unknown. A pre-feasibility study using the Solar and Wind Energy Resource Assessment (SWERA) dataset revealed that 29 percent of Kenya’s tea farms have wind resources that could be suitable for development. There were more “moderate”-rated tea farms west …

A Case-Control Study Of Physical Activity Patterns And Risk Of Non-Fatal Myocardial Infarction, Jian Gong, Hannia Campos, Mark Fiecas, Stephen Mcgarvey, Robert Goldberg, Caroline Richardson, Ana Baylin

Mark Fiecas

Background The interactive effects of different types of physical activity on cardiovascular disease (CVD) risk have not been fully considered in previous studies. We aimed to identify physical activity patterns that take into account combinations of physical activities and examine the association between derived physical activity patterns and risk of acute myocardial infarction (AMI). Methods We examined the relationship between physical activity patterns, identified by principal component analysis (PCA), and AMI risk in a case-control study of myocardial infarction in Costa Rica (N=4172), 1994-2004. The component scores derived from PCA and total METS were used in natural cubic spline models …

Quantifying Temporal Correlations: A Test-Retest Evaluation Of Functional Connectivity In Resting-State Fmri, Mark Fiecas, Hernando Ombao, Dan Van Lunen, Richard Baumgartner, Alexandre Coimbra, Dai Feng

Mark Fiecas

There have been many interpretations of functional connectivity and proposed measures of temporal correlations between BOLD signals across different brain areas. These interpretations yield from many studies on functional connectivity using resting-state fMRI data that have emerged in recent years. However, not all of these studies used the same metrics for quantifying the temporal correlations between brain regions. In this paper, we use a public-domain test–retest resting-state fMRI data set to perform a systematic investigation of the stability of the metrics that are often used in resting-state functional connectivity (FC) studies. The fMRI data set was collected across three different …

Application Of Homotopy Analysis Transform Method To Fractional Biological Population Model, Habibolla Latifizadeh

H. L. Zadeh

No abstract provided.