Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 137611 - 137640 of 303958

Full-Text Articles in Physical Sciences and Mathematics

Row Sums And Alternating Sums Of Riordan Arrays, Tian-Xiao He, Louis W. Shapiro Dec 2015

Row Sums And Alternating Sums Of Riordan Arrays, Tian-Xiao He, Louis W. Shapiro

Tian-Xiao He

Here we use row sum generating functions and alternating sum generating functions to characterize Riordan arrays and subgroups of the Riordan group. Numerous applications and examples are presented which include the construction of Girard-Waring type identities. We also show the extensions to weighted sum (generating) functions,
called the expected value (generating) functions of Riordan arrays.

Go to article

Ferroelectric Polymer Nanopillars Arrays On Flexible Substrates By.Pdf, Shumin Li Dec 2015

Ferroelectric Polymer Nanopillars Arrays On Flexible Substrates By.Pdf, Shumin Li

Shumin Li

No abstract provided.

Go to article

Vita Mharvey.Docx, Michael Harvey Dec 2015

Vita Mharvey.Docx, Michael Harvey

Michael Harvey

No abstract provided.

Go to article

Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Sofiene Abdellaoui, Shelley D. Minteer, Ellen W. Moomaw Dec 2015

Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Sofiene Abdellaoui, Shelley D. Minteer, Ellen W. Moomaw

Ellen Moomaw

No abstract provided.

Go to article

Stratigraphy And Extent Of The Pearl-Ashmore Aquifer, Mchenry County, Il, Usa, Drew C. Carlock, David H. Malone, Jason F. Thomason, Eric Wade Peterson Dec 2015

Stratigraphy And Extent Of The Pearl-Ashmore Aquifer, Mchenry County, Il, Usa, Drew C. Carlock, David H. Malone, Jason F. Thomason, Eric Wade Peterson

Eric Wade Peterson

Quaternary glacial till, outwash, lake sediments, and loess compose the surficial deposits of McHenry County, Illinois. Much of the landscape of McHenry County were formed by at least three separate advances of the Harvard Sublobe of the Wisconsin Episode Lake Michigan Lobe, which was part of the Laurentide Ice Sheet. This project focuses on the delineation of the stratigraphy and extent of the Pearl-Ashmore Aquifer. The Pearl-Ashmore Aquifer is the combination of the proglacial outwash of the Wisconsin Episode Ashmore Tongue of the Henry Formation and the youngest outwash associated with the Illinois Episode, which is the Pearl Formation. A …

Go to article

Felisha Imholt, Felisha Imholt Dec 2015

Felisha Imholt, Felisha Imholt

Matthew E. Wise

Determination of the optical and physical properties of secondary organic aerosol particles

Go to article

Human–Wildlife Conflict And Coexistence, Philip J. Nyhus Dec 2015

Human–Wildlife Conflict And Coexistence, Philip J. Nyhus

Philip J. Nyhus

Human interactions with wildlife are a defining experience of human existence. These interactions can be positive or negative. People compete with wildlife for food and resources, and have eradicated dangerous species; co-opted and domesticated valuable species; and applied a wide range of social, behavioral, and technical approaches to reduce negative interactions with wildlife. This conflict has led to the extinction and reduction of numerous species and uncountable human deaths and economic losses. Recent advances in our understanding of conflict have led to a growing number of positive conservation and coexistence outcomes. I summarize and synthesize factors that contribute to conflict, …

Go to article

Dislocation Creep Of Dry Quartz, Rüdiger Kilian, Renee Heilbronner, Caleb Holyoke, Andreas Kronenberg, Holger Stünitz Dec 2015

Dislocation Creep Of Dry Quartz, Rüdiger Kilian, Renee Heilbronner, Caleb Holyoke, Andreas Kronenberg, Holger Stünitz

Caleb Holyoke

No abstract provided.

Go to article

Calculations.Zip, Iosif Pinelis Dec 2015

Calculations.Zip, Iosif Pinelis

Iosif Pinelis

The zip file contains Mathematica notebook calculations.nb and its PDF image calculations.pdf, pertaining to my paper "Positive-part moments via the characteristic functions, and more general expressions".

Go to article

Introduction To Targeted Learning, Laura Balzer Dec 2015

Introduction To Targeted Learning, Laura Balzer

Laura B. Balzer

No abstract provided.

Go to article

Interrogating Metabolism In Brain Cancer, Travis Salzillo, Jingzhe Hu, Linda Nguyen, Nicholas Whiting, Jaehyuk Lee, Joseph Weygand, Prasanta Dutta, Shivanand Pudakalakatti, Niki Zacharias Millward, Seth Gammon, Frederick F. Lang, Amy B. Heimberger, Pratip Bhattacharya Dec 2015

Interrogating Metabolism In Brain Cancer, Travis Salzillo, Jingzhe Hu, Linda Nguyen, Nicholas Whiting, Jaehyuk Lee, Joseph Weygand, Prasanta Dutta, Shivanand Pudakalakatti, Niki Zacharias Millward, Seth Gammon, Frederick F. Lang, Amy B. Heimberger, Pratip Bhattacharya

Nicholas Whiting

Many existing and emerging techniques of interrogating metabolism in brain cancer are at an early stage of development. A few clinical trials that employ these techniques are in progress in patients with brain cancer to establish the clinical efficacy of these techniques. It is likely that in vivo metabolomics and metabolic imaging is the next frontier in brain cancer diagnosis and assessing therapeutic efficacy.

Go to article

Shrinkage Estimation For Multivariate Hidden Markov Mixture Models, Mark Fiecas, Jürgen Franke, Rainer Von Sachs, Joseph Tadjuidje Dec 2015

Shrinkage Estimation For Multivariate Hidden Markov Mixture Models, Mark Fiecas, Jürgen Franke, Rainer Von Sachs, Joseph Tadjuidje

Mark Fiecas

Motivated from a changing market environment over time, we consider high-dimensional data such as financial returns, generated by a hidden Markov model which allows for switching between different regimes or states. To get more stable estimates of the covariance matrices of the different states, potentially driven by a number of observations which is small compared to the dimension, we apply shrinkage and combine it with an EM-type algorithm. This approach will yield better estimates a more stable estimates of the covariance matrix, which allows for improved reconstruction of the hidden Markov chain. In addition to a simulation study and the …

Go to article

Iclp Tutorial: Relating Constraint Answer Set Programming And Satisfiability Modulo Theories, Yuliya Lierler Dec 2015

Iclp Tutorial: Relating Constraint Answer Set Programming And Satisfiability Modulo Theories, Yuliya Lierler

Yuliya Lierler

No abstract provided.

Go to article

Syllabus: Csci2030: Mathematical Foundations Of Computer Science, Yuliya Lierler Dec 2015

Syllabus: Csci2030: Mathematical Foundations Of Computer Science, Yuliya Lierler

Yuliya Lierler

No abstract provided.

Go to article

Systems, Engineering Environments, And Competitions, Yuliya Lierler, Marco Maratea, Francesco Ricca Dec 2015

Systems, Engineering Environments, And Competitions, Yuliya Lierler, Marco Maratea, Francesco Ricca

Yuliya Lierler

The goal of this paper is threefold. First, we trace the history of the development of answer set solvers, by accounting for more than a dozen of them. Second, we discuss development tools and environments that facilitate the use of answer set programming technology in practical applications. Last, we present the evolution of the answer set programming competitions, prime venues for tracking advances in answer set solving technology.

Go to article

Elements Of Discrete Mathematics, Yuliya Lierler Dec 2015

Elements Of Discrete Mathematics, Yuliya Lierler

Yuliya Lierler

No abstract provided.

Go to article

Assessing The Impact Of Representational And Contextual Problem Features On Student Use Of Right-Hand Rules, Mary Bridget Kustusch Dec 2015

Assessing The Impact Of Representational And Contextual Problem Features On Student Use Of Right-Hand Rules, Mary Bridget Kustusch

Mary Bridget Kustusch

Students in introductory physics struggle with vector algebra and these challenges are often associated
with contextual and representational features of the problems. Performance on problems about cross product
direction is particularly poor and some research suggests that this may be primarily due to misapplied right-
hand rules. However, few studies have had the resolution to explore student use of right-hand rules in detail.
This study reviews literature in several disciplines, including spatial cognition, to identify ten contextual and
representational problem features that are most likely to influence performance on problems requiring a
right-hand rule. Two quantitative measures of performance (correctness …

Go to article

Student Conceptions Of Expertise, Charles Bertram, Anne E. Leak, Eleanor C. Sayre, Mary Bridget Kustusch, Scott V. Franklin Dec 2015

Student Conceptions Of Expertise, Charles Bertram, Anne E. Leak, Eleanor C. Sayre, Mary Bridget Kustusch, Scott V. Franklin

Mary Bridget Kustusch

We report on student beliefs about what constitutes expertise. Our population is a group of first-generation and deaf/hard-of-hearing students participating in a pre-matriculation university program designed to encourage reflection and metacognitive practice. Students first worked in small groups to articulate criteria that defined expertise and then engaged in a class discussion in which a formal definition was developed. All activities were recorded and student discourse analyzed, revealing a nuanced and evolving understanding of expertise.

Go to article

Sixth Edition, Global Environment Outlook (Geo-6) Regional Assessment For Africa, Stanley Mubako Dec 2015

Sixth Edition, Global Environment Outlook (Geo-6) Regional Assessment For Africa, Stanley Mubako

Stanley Mubako

No abstract provided.

Go to article

Penyebab Lemah Syahwat Tiba Tiba | Makanan Penyembuh Lemah Syahwat, Chelsea Fc Dec 2015

Penyebab Lemah Syahwat Tiba Tiba | Makanan Penyembuh Lemah Syahwat, Chelsea Fc

chelsea fc

Penyebab Lemah Syahwat Tiba Tiba | Makanan Penyembuh Lemah Syahwat - Titik Syaraf Alat Vital Pria, Cara Menyembuhkan Impotensi, Mengatasi Ereksi Kurang Keras, Penyebab Ereksi Kurang Keras, Titik Bekam Kejantanan

Go to article

Merk Obat Sipilis Yang Paling Banyak Digunakan, Ndas Kura Dec 2015

Merk Obat Sipilis Yang Paling Banyak Digunakan, Ndas Kura

Ndas Kura

Sipilis terus menjadi masalah epidemiologi yang penting. Selama beberapa tahun peningkatan yang stabil dalam kejadian penyakit menular seksual ini telah diamati. Kemajuan dalam ilmu kedokteran mewajibkan dokter untuk hanya menggunakan pendekatan diagnostik dan terapeutik yang terbukti secara ilmiah. Berdasarkan pedoman Eropa (IUSTI) dan AS (CDC), dalam manuskrip ini, kami menyajikan beberapa masalah praktis yang dipilih mengenai diagnosis dan pengobatan sifilis. Kami benar-benar berharap bahwa tinjauan ini akan membantu semua dokter yang merawat pasien sipilis untuk mensistematisasi pengetahuan saat ini.

Go to article

The Separation And Analysis Of Symmetric And Asymmetric Dimethylarginine And Other Hydrophilic Isobaric Compounds Using Aqueous Normal Phase Chromatography, Seiichiro Watanabe Dec 2015

The Separation And Analysis Of Symmetric And Asymmetric Dimethylarginine And Other Hydrophilic Isobaric Compounds Using Aqueous Normal Phase Chromatography, Seiichiro Watanabe

Seiichiro Watanabe

Two biologically important compounds with clinical relevance, asymmetric dimethylarginine and symmetric dimethylarginine, are analyzed using aqueous normal phase chromatography on silica hydride-based columns. Two different stationary phases were tested, a commercially available Diamond Hydride™ and a 2-acrylamido-2-methylpropane sulfonic acid experimental column. Two types of analytical protocols were investigated: analysis of the compounds when separation was achieved and analysis of the compounds with partial chromatographic separation. Urine samples from tuberculosis patients were tested for levels of asymmetric and symmetric dimethylarginine. The mass spectrometric technique of in-source fragmentation that can provide data similar to a tandem mass analyzer was evaluated as a …

Go to article

Ambient Air Concentrations Exceeded Health Based Standards For Fine Particulate Matter And Benzene During The Deepwater Horizon Oil Spill, Earthea Nance, Denae King, Beverly Wright, Robert D. Bullard Dec 2015

Ambient Air Concentrations Exceeded Health Based Standards For Fine Particulate Matter And Benzene During The Deepwater Horizon Oil Spill, Earthea Nance, Denae King, Beverly Wright, Robert D. Bullard

Earthea Nance, PhD (Stanford University, 2004)

.

Go to article

Developing The Greatest Blue Economy:Water Productivity, Fresh Water Depletion, And Virtual Water Trade In The Great Lakes Basin, Stanley Mubako Dec 2015

Developing The Greatest Blue Economy:Water Productivity, Fresh Water Depletion, And Virtual Water Trade In The Great Lakes Basin, Stanley Mubako

Stanley Mubako

No abstract provided.

Go to article

Tracie Salinas.Jpg, Tracie Mclemore Salinas Dec 2015

Tracie Salinas.Jpg, Tracie Mclemore Salinas

Dr. Tracie McLemore Salinas

No abstract provided.

Go to article

Modeling The Evolution Of Dynamic Brain Processes During An Associative Learning Experiment, Mark Fiecas, Hernando Ombao Dec 2015

Modeling The Evolution Of Dynamic Brain Processes During An Associative Learning Experiment, Mark Fiecas, Hernando Ombao

Mark Fiecas

Our goal is to use local field potentials (LFPs) to rigorously study changes in neuronal activity in the hippocampus and the nucleus accumbens over the course of an associative learning experiment. We show that the spectral properties of the LFPs changed during the experiment. While many statistical models take into account nonstationarity within a single trial of the experiment, the evolution of brain dynamics across trials is often ignored. In this paper, we developed a novel time series model that captures both sources of nonstationarity. Under the proposed model we rigorously define the spectral density matrix so that it evolves …

Go to article

Rene Salinas.Jpg, Rene A. Salinas Dec 2015

Rene Salinas.Jpg, Rene A. Salinas

Dr. Rene Salinas

No abstract provided.

Go to article

Early Diagnosis Of Dengue Disease Severity In A Resource-Limited Asian Country, Philippe Cavailler, Arnaud Tarantola, Yee Sin Leo, Andrew A. Lover, Anne Rachline, Duch Moniboth, Rekol Huy, Ai Li Quake, Kdan Yuvatha, Veasna Duong, Jeremy L. Brett, Philippe Buchy Dec 2015

Early Diagnosis Of Dengue Disease Severity In A Resource-Limited Asian Country, Philippe Cavailler, Arnaud Tarantola, Yee Sin Leo, Andrew A. Lover, Anne Rachline, Duch Moniboth, Rekol Huy, Ai Li Quake, Kdan Yuvatha, Veasna Duong, Jeremy L. Brett, Philippe Buchy

Andrew Lover

Background: Dengue is endemic throughout Cambodia, a country faced with significant health and economic challenges. We undertook a clinical study at the National Paediatric Hospital in Phnom Penh to evaluate clinical diagnostic parameters for dengue and predictors of disease outcome. Methods: Between September 2011 and January 2013, all consecutive inpatients aged between 1 and 15 years and presenting with suspected dengue were enrolled. They were clinically assessed using both the 1997 and 2009 WHO dengue classifications. Specimens were collected upon admission and discharge and tested for dengue at Institut Pasteur in Cambodia. Results: A total of 701 patients were screened. …

Go to article

Serological Evidence For Localized And Persistent Antibody Response In Zika Virus-Positive Neonates With Microcephaly (Brazil, 2015)- A Secondary Analysis, Andrew A. Lover Dec 2015

Serological Evidence For Localized And Persistent Antibody Response In Zika Virus-Positive Neonates With Microcephaly (Brazil, 2015)- A Secondary Analysis, Andrew A. Lover

Andrew Lover

A recent publication in The Lancet by Cordeiro and colleagues reported levels of IgM for Zika (ZIKV) and dengue (DENV) viruses in serum and cerebrospinal fluid (CSF) of 31 infants born with microcephaly in Brazil. 1 Their study suggests higher titers in CSF relative to serum in individual neonates, but no quantitative comparisons were reported. In this short report, the differences in antibody titers are quantified and compared between sample sources; across sampling periods; and between sample sources within individual neonates to more comprehensively understand these data to inform serological surveillance. These are statistically significant differences in ZIKV titers between …

Go to article

Greenpoint's Superfund Problem, Helina Selemon Dec 2015

Greenpoint's Superfund Problem, Helina Selemon

Capstones

A feature observing a community living in the shadow of a superfund site, a toxic industrial site in need of cleanup, that was recently purchased for development. The story looks at the complicated nature of this particular superfund and the problems the community around it has--including potential health risks during cleanup, rapid development, and an inescapable industrial past.

Go to article

First Prev Next Last