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2014

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Growth Mechanics In Degradable Hydrogel Scaffolds, Franck Vernerey Oct 2014

Growth Mechanics In Degradable Hydrogel Scaffolds, Franck Vernerey

Society of Engineering Science 51st Annual Technical Meeting Archive

Despite tremendous advances in the field of tissue engineering, a number of obstacles are still hindering its successful translation to the clinic. One of these challenges has been to design cell-laden scaffolds that can provide an appropriate environment for cells to successfully synthesize new tissue while providing a mechanical support that can resist physiological loads at the early stage of in situ implementation. A solution to this problem has been to balance tissue growth and scaffold degradation by creating new hydrogel systems that possess both hydrolytic and enzymatic degradation behaviors. Very little is known, however, about the complex behavior of …

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Computational Modeling Of Biomechanics: Biological Growth And Morphogenesis, Jiaoyan Li, Lijie Zhang, James Lee Oct 2014

Computational Modeling Of Biomechanics: Biological Growth And Morphogenesis, Jiaoyan Li, Lijie Zhang, James Lee

Society of Engineering Science 51st Annual Technical Meeting Archive

Unlike common engineering materials, living matter can autonomously respond to environmental changes to become stronger, weaker, larger, or smaller within months, weeks, days, or even seconds as a result of a continuous microstructural renewal and adaption. The importance of mechanics in developmental biology is well established, where biomechanical forces and constraints are the bridge that connects genetic and molecular-level events to tissue-level deformations that shape the developing embryo. Moreover, feedback from the mechanical environment affects gene expression and differentiation. Therefore, mechanical forces and constraints are not only a proximal cause of biological growth and morphogenesis, but also play a regulatory …

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Generalized Finite Element Method For Bridging Fine-Scale Heterogeneity To The Structural Scale, Julia Plews, C. Armando Duarte Oct 2014

Generalized Finite Element Method For Bridging Fine-Scale Heterogeneity To The Structural Scale, Julia Plews, C. Armando Duarte

Society of Engineering Science 51st Annual Technical Meeting Archive

Phenomena spanning multiple spatial scales and encompassing multiple physics disciplines of interest are prevalent in many modern engineering applications; structural or global failure is often caused by the onset of very local damage like cracks or shear bands. In the case of heterogeneous materials, damage evolution is governed by microstructural details that can be several orders of magnitude smaller than structural dimensions. The mathematical homogenization theory has been used extensively as a tool for analyzing multiscale response of heterogeneous materials. Available multiscale or homogenization-based schemes achieve coupling between scales of interest by the numerical solution of a macroscale boundary value …

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Optimal Charge/Discharge Profiles Of Mechanically Constrained Lithium-Ion Batteries, Bharatkumar Suthar, Venkat Subramanian Oct 2014

Optimal Charge/Discharge Profiles Of Mechanically Constrained Lithium-Ion Batteries, Bharatkumar Suthar, Venkat Subramanian

Society of Engineering Science 51st Annual Technical Meeting Archive

The cost and safety related issues of lithium-ion batteries require proactive charge and discharge profiles that can efficiently utilize the battery. Detailed electrochemical engineering based models that incorporate all of the key physics affecting the internal states of a lithium-ion battery are modeled using a system of coupled nonlinear partial differential equations. Careful choice of numerical discretization schemes and mathematical reformulation approaches can reduce the computational cost of these models to implement them in control relevant applications. The progress made in understanding the capacity fade mechanisms has paved the way for inclusion of that knowledge in deriving optimal charging/discharging profiles. …

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A Tensor-Product Approach For Large Scale Electronic Structure Calculations Using Kohn–Sham Density Functional Theory, Phani Motamarri, Vikram Gavini, Thomas Blesgen Oct 2014

A Tensor-Product Approach For Large Scale Electronic Structure Calculations Using Kohn–Sham Density Functional Theory, Phani Motamarri, Vikram Gavini, Thomas Blesgen

Society of Engineering Science 51st Annual Technical Meeting Archive

Quantum-mechanical calculations based on Kohn–Sham density functional theory (DFT) played a significant role in accurately predicting various aspects of materials behavior over the past decade. The Kohn–Sham approach to DFT reduces the many-body Schrodinger (eigen value) problem of interacting electrons into an equivalent problem of noninteracting electrons in an effective mean field that is governed by electron-density. Despite the reduced computational complexity of Kohn–Sham DFT, large-scale DFT calculations are still computationally very demanding with the resulting computational complexity scaling cubically with number of atoms in a given materials system. Numerical algorithms with reduced scaling behavior which are robust, computationally efficient …

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Impact Of Advection Process In Simulating The Dynamics Of Diffusion-Controlled Irreversible Fast/Moderate/Slow Bimolecular-Reactive Systems, Maruti Mudunuru, Kalyana Nakshatrala Oct 2014

Impact Of Advection Process In Simulating The Dynamics Of Diffusion-Controlled Irreversible Fast/Moderate/Slow Bimolecular-Reactive Systems, Maruti Mudunuru, Kalyana Nakshatrala

Society of Engineering Science 51st Annual Technical Meeting Archive

Diffusion-controlled bimolecular reactions arise in various branches of natural sciences [1], chemically reacting systems [2], and contaminant transport [3]. Based on the kinetics of the chemical reaction, they are broadly classified in to three categories: fast, moderate, and slow [4]. Herein, we are interested in the dynamics of a (fast/moderate/slow) bimolecular reaction given by the following stoichiometric relationship [5]: nA A + nB B −→ nC C In this discussion, we shall present a computational framework to simulate the dynamics of an irreversible bimolecular advection–diffusion–reaction (ADR) system within the context of low-order mixed finite element method. Most importantly, we shall …

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Open-Access Crystallography Database Administration: Preparation And Upload Of 400 Structures, Justin Shuck Oct 2014

Open-Access Crystallography Database Administration: Preparation And Upload Of 400 Structures, Justin Shuck

PSU McNair Scholars Online Journal

Since 2004, Portland State's Nano-Crystallography Group has provided crystallographic resources including five interactive open-access databases (educational subset of the Crystallographic Open Database (COD), Crystal Morphology Database, Nano-Crystallography Database and Wiki Crystallography Database) as well as a mirror to the whole COD, which is the world's largest openaccess crystallography database (with currently over 235 thousand data entries of inorganic, organic, and metal-organic compounds as well as minerals). Before information can be stored inside of databases they must be put in Crystallographic Information Framework files (CIFs), the framework established by the International Union of Crystallography, and the worldwide standard for representing crystallographic …

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Front Matter Volume 8, 2014, Mcnair Scholars Program Oct 2014

Front Matter Volume 8, 2014, Mcnair Scholars Program

PSU McNair Scholars Online Journal

Front matter includes program background, Table of Contents, and a complete listing of 2014 Portland State McNair Scholars.

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Faith, Doubt, And Chiasmus In Krzysztof Kieslowski's Decalogue I, William Bartley Oct 2014

Faith, Doubt, And Chiasmus In Krzysztof Kieslowski's Decalogue I, William Bartley

Journal of Religion & Film

This article proposes a reinterpretation of Krzysztof Kieslowski’s exploration of the first commandment in Decalogue I. It argues that the narrative structure of the story is chiastic—i.e., inversely parallel—which follows from recognizing for the first time the crucial role that Irena, the devoutly Catholic sister of Krzysztof, a professor and religious skeptic, plays in the story. The pattern of inverse parallelism (chiasmus) emerges as Krzysztof and Irena respond separately to the tragic death of Krzysztof’s son, Pawel: as Krzysztof’s skepticism gives way to a new faith in God, inversely and unexpectedly Irena’s faith retreats into doubt. This outcome, in …

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The Role Of Reusable Learning Objects In Occupational Therapy Entry-Level Education, Bryan M. Gee, Jane Strickland, Lisa Salazar Oct 2014

The Role Of Reusable Learning Objects In Occupational Therapy Entry-Level Education, Bryan M. Gee, Jane Strickland, Lisa Salazar

The Open Journal of Occupational Therapy

Out of early research, Cisco Systems (1999) have built an impressive foundation that advocates for reusable learning objects (RLOs). As the need for online methods for delivering both formal and informal educational content has increased, the prospect of greater influence through carefully constructed RLOs has grown. RLOs are any digital resource that can be used and reused to enhance online learning. RLOs typically are small, discrete, self-contained digital objects that may be sequenced, combined, and used within a variety of instructional activities. RLOs have been implemented in nursing, pharmacy, and physician assistant programs. However, there is a lack of literature …

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Investigation Of Conjugate Heat Transfer In Fluid-Structure Interaction Modeling Using Openfoam, Andrew Brown Oct 2014

Investigation Of Conjugate Heat Transfer In Fluid-Structure Interaction Modeling Using Openfoam, Andrew Brown

Aerospace Engineering

No abstract provided.

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Further Evidence For Superterminal Raindrops, M. L. Larsen, A. Kostinski, A. R. Jameson Oct 2014

Further Evidence For Superterminal Raindrops, M. L. Larsen, A. Kostinski, A. R. Jameson

Department of Physics Publications

A network of optical disdrometers (including laser precipitation monitors and a two‐dimensional video disdrometer) was utilized to determine whether the recent reports of “superterminal” raindrops were spurious results of drop breakup occurring on instrumentation. Results unequivocally show that superterminal raindrops at small (less than 1 mm) sizes are ubiquitous, are measurable over an extended area, and appear in every rain event investigated. No evidence was found to suggest that superterminal drops are the result of drop breakup due to impact with the measurement instrument; thus, if the superterminal drops are the result of drop fragmentation, this fragmentation happens in the …

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Fractal Growth On The Surface Of A Planet And In Orbit Around It, Ioannis Haranas, Ioannis Gkigkitzis, Athanasios Alexiou Oct 2014

Fractal Growth On The Surface Of A Planet And In Orbit Around It, Ioannis Haranas, Ioannis Gkigkitzis, Athanasios Alexiou

Physics and Computer Science Faculty Publications

Fractals are defined as geometric shapes that exhibit symmetry of scale. This simply implies that fractal is a shape that it would still look the same even if somebody could zoom in on one of its parts an infinite number of times. This property is also called self-similarity with several applications including nano-pharmacology and drug nanocarriers. We are interested in the study of the properties of fractal aggregates in a microgravity environment above an orbiting spacecraft. To model the effect we use a complete expression for the gravitational acceleration. In particular on the surface of the Earth the acceleration is …

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The Mass Of Graviton And Its Relation To The Number Of Information According To The Holographic Principle, Ioannis Haranas, Ioannis Gkigkitzis Oct 2014

The Mass Of Graviton And Its Relation To The Number Of Information According To The Holographic Principle, Ioannis Haranas, Ioannis Gkigkitzis

Physics and Computer Science Faculty Publications

We investigate the relation of the mass of the graviton to the number of information 𝑁 in a flat universe. As a result we find that the mass of the graviton scales as 𝑚gr ∝ 1/√𝑁. Furthermore, we find that the number of gravitons contained inside the observable horizon is directly proportional to the number of information 𝑁; that is, 𝑁gr ∝ 𝑁. Similarly, the total mass of gravitons that exist in the universe is proportional to the number of information 𝑁; that is, 𝑀gr ∝ √𝑁. In an effort to establish a relation between the graviton …

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Innovations Volume 1: Issue 1, Ron And Kathy Assaf College Of Nursing Oct 2014

Innovations Volume 1: Issue 1, Ron And Kathy Assaf College Of Nursing

Innovations Magazine

No abstract provided.

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Does U.S. Macroeconomic News Make Emerging Financial Markets Riskier?, Esin Cakan, Kamal Upadhyaya Oct 2014

Does U.S. Macroeconomic News Make Emerging Financial Markets Riskier?, Esin Cakan, Kamal Upadhyaya

Economics & Business Analytics Faculty Publications

This study analyzes the impacts of U.S. macroeconomic announcement surprises on the volatility of twelve emerging stock markets by employing asymmetric GJR-GARCH model. The model includes both positive and negative surprises about inflation and unemployment rate announcements in the U.S. We find that volatility shocks are persistent and asymmetric. Asymmetric volatility increases with bad news on U.S. inflation in five out of the twelve countries studied and it increases with a bad news on U.S. unemployment in four out of twelve countries. Asymmetric volatility decreases with good news about US employment situation in eight countries out of twelve countries. Such …

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Daily Announcements October 2014, Wofford College. Office Of Marketing And Communications Oct 2014

Daily Announcements October 2014, Wofford College. Office Of Marketing And Communications

Communications Office Daily Announcements

No abstract provided.

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College Of Science And Mathematics Newsletter, Fall 2014, College Of Science And Mathematics, Wright State University Oct 2014

College Of Science And Mathematics Newsletter, Fall 2014, College Of Science And Mathematics, Wright State University

College of Science and Mathematics Newsletters

This 8 page newsletter discusses various happenings within the College of Science and Mathematics. It begins with a letter from the dean, and continues on with news, events, alumni news, and other community news.

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Mole Street Journal, September 2014, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry Oct 2014

Mole Street Journal, September 2014, University Of Arkansas, Fayetteville. Dept. Of Chemistry And Biochemistry

Mole Street Journal

No abstract provided.

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Assessment Of Economic Loss In China From Water Pollution In Chong Ming County Near The Yangtze Estuary, Xiaoli Zhang Oct 2014

Assessment Of Economic Loss In China From Water Pollution In Chong Ming County Near The Yangtze Estuary, Xiaoli Zhang

Working Papers

It is well-known that the water pollution of the Yangtze River basin is significant. Studies have shown that from the upper river to the lower river, the water volume decreases, the intensity of development is higher, and the pollution is more profound. Studies also find that pollution is even more significant in transboundary areas at the intersection of provinces and large cities. The Yangtze Estuary lies at the end of the lower river of the Yangtze River, where the waters flow directly into the East China Sea. The location is also at the transboundary cross-section of Jiangsu Province and Shanghai. …

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The Land Scouts: Guide Book, Katie D. Ries Oct 2014

The Land Scouts: Guide Book, Katie D. Ries

Faculty Creative and Scholarly Works

The Land Scouts promote modern land stewardship and are open to all. The Guide Book gives an overview of the scouts as well as information on getting started earning badges and hosting a troop.

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Planarity Of Whitney Levels, Jorbe Bustamante, W. J. Charatonik, Raul Escobedo Oct 2014

Planarity Of Whitney Levels, Jorbe Bustamante, W. J. Charatonik, Raul Escobedo

Mathematics and Statistics Faculty Research & Creative Works

First, we characterize all locally connected continua whose all Whitney levels are planar. Second, we show by example that planarity is not a (strong) Whitney reversible property. This answers a question from Illanes-Nadler book [2].

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Measuring The Socio-Economic Characteristics Of A Lionfish Derby Event, Adam Nardelli, Stephanie Green, L. Akins, David W. Kerstetter Oct 2014

Measuring The Socio-Economic Characteristics Of A Lionfish Derby Event, Adam Nardelli, Stephanie Green, L. Akins, David W. Kerstetter

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

No abstract provided.

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Sfa Weather Station-October 2014, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University Oct 2014

Sfa Weather Station-October 2014, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University

Weather Station Data

No abstract provided.

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A Bayesian Approach To Joint Modeling Of Menstrual Cycle Length And Fecundity, Kirsten J. Lum, Rajeshwari Sundaram, Germaine M. Buck-Louis, Thomas A. Louis Oct 2014

A Bayesian Approach To Joint Modeling Of Menstrual Cycle Length And Fecundity, Kirsten J. Lum, Rajeshwari Sundaram, Germaine M. Buck-Louis, Thomas A. Louis

Johns Hopkins University, Dept. of Biostatistics Working Papers

Female menstrual cycle length is thought to play an important role in couple fecundity, or the biologic capacity for reproduction irrespective of pregnancy intentions. A complete assessment of the association between menstrual cycle length and fecundity requires a model that accounts for multiple risk factors (both male and female) and the couple's intercourse pattern relative to ovulation. We employ a Bayesian joint model consisting of a mixed effects accelerated failure time model for longitudinal menstrual cycle lengths and a hierarchical model for the conditional probability of pregnancy in a menstrual cycle given no pregnancy in previous cycles of trying, in …

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Granularity Explains Empirical Factor-Of-Three Relation Between Probabilities Of Pulmonary Embolism In Different Patient Categories, Beverly Rivera, Francisco Zapata, Vladik Kreinovich Oct 2014

Granularity Explains Empirical Factor-Of-Three Relation Between Probabilities Of Pulmonary Embolism In Different Patient Categories, Beverly Rivera, Francisco Zapata, Vladik Kreinovich

Departmental Technical Reports (CS)

Pulmonary embolism is a very dangerous difficult-to-detect medical condition. To diagnose pulmonary embolism, medical practitioners combine indirect signs of this condition into a single score, and then classify patients into low-probability, intermediate-probability, and high-probability categories. Empirical analysis shows that, when we move from each category to the next one, the probability of pulmonary embolism increases by a factor of three. In this paper, we provide a theoretical explanation for this empirical relation between probabilities.

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Scholarworks Statistics - October 2014, Scholarworks Oct 2014

Scholarworks Statistics - October 2014, Scholarworks

ScholarWorks Reports

For the month of October 2014, ScholarWorks recorded a total of 31,709 full-text downloads and 12,337 page views.

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2014-2015 Boise State University Undergraduate Catalog, Boise State University Office Of The Registrar Oct 2014

2014-2015 Boise State University Undergraduate Catalog, Boise State University Office Of The Registrar

University Catalogs

No abstract provided.

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The Shale Revolution: Fracks And Figures, Singapore Management University Oct 2014

The Shale Revolution: Fracks And Figures, Singapore Management University

Perspectives@SMU

The U.S. shale revolution could yet make a difference in controlling climate change, but the media must first separate frack from fiction.

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Almost, Maine, John Cariani Oct 2014

Almost, Maine, John Cariani

Hollins University Theatre Performances

Almost, Maine is a comedy in which various residents of a small town find love beneath the northern lights. The materials gathered here are related to performances of the play given October 17-25, 2014 at the Hollins University Theatre, directed by Ernie Zulia.

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