Digital Commons Network^™

Overlap Statistics Of Cumuliform Boundary-Layer Cloud Fields In Large-Eddy Simulations, Roel A.J. Neggers, Thijs Heus, A. Pier Siebesma

Physics Faculty Publications

Overlap statistics of cumuliform boundary-layer clouds are studied using large-eddy simulations at high resolutions. The cloud overlap is found to be highly inefficient, due to the typical irregularity of cumuliform clouds over a wide range of scales. The detection of such inefficient overlap is enabled in this study by i) applying fine enough discretizations and ii) by limiting the analysis to exclusively cumuliform boundary-layer cloud fields. It is argued that these two factors explain the differences with some previous studies on cloud overlap. In contrast, good agreement exists with previously reported observations of cloud overlap as derived from lidar measurements …

Rotunda - Vol 90, No 12 - Nov 16, 2011, Longwood University

Rotunda

No abstract provided.

Electron Energy Dependent Charging Effects Of Multilayered Dielectric Materials, Gregory Wilson, Amberly Evans Jensen, Jr Dennison

Presentations

No abstract provided.

The Spinnaker [Vol. 33 No. 77], University Of North Florida

Spinnaker

Student newspaper for the UNF community.

Thermodynamic Limit To Photonic-Plasmonic Light-Trapping In Thin Films On Metals, Eric A. Schiff

Physics - All Scholarship

We calculate the maximum optical absorptance enhancements in thin semiconductor films on metals due to structures that diffuse light and couple it to surface plasmon polaritons. The calculations can be used to estimate plasmonic effects on light-trapping in solar cells. The calculations are based on the statistical distribution of energy in the electromagnetic modes of the structure, which include surface plasmon polariton modes at the metal interface as well as the trapped waveguide modes in the film. The enhancement has the form 4n²+nλ/h (n – film refractive index, λ – optical wavelength, h …

Assisting Student Cancer Survivors To Re-Enter The School Setting, Rebecca Rothschild

Theses and Dissertations

The tremendous increase in the survival rates of children diagnosed with childhood cancer has created an ever-growing number of children who are re-entering school during or after treatment for childhood cancer. Furthermore, there are many long-term side effects following the treatment for childhood cancer. A study was conducted to assess the knowledge base and awareness of school staff members regarding assisting children re-entering school after cancer. Based on preliminary data, a professional development study was conducted and a professional development intervention was designed and presented to make all school personnel aware of potential educational problems that may be related to …

Treatment Of Anxiety Using Manualized Protocol: A Case Study, Deborah Stevenson

Theses and Dissertations

This case study evaluates the effectiveness of a manualized cognitive-behavioral therapy for the treatment of Generalized Anxiety Disorder in an adult female with comorbid Major Depressive Disorder and Social Phobia. The client voluntarily participated in outpatient individual psychotherapy offered in a private counseling facility. The client's psychosocial assessment is presented and the literature on empirical treatment and developing treatment models for Generalized Anxiety Disorder is reviewed. The client's progress in treatment and a comparison with what might be considered "best treatment" is presented. The client's Generalized Anxiety Disorder was treated using the manualized program Mastery of Your Anxiety and Worry …

Bearing-Only Cooperative-Localization And Path-Planning Of Ground And Aerial Robots, Rajnikant Sharma

Theses and Dissertations

In this dissertation, we focus on two fundamental problems related to the navigation of ground robots and small Unmanned Aerial Vehicle (UAVs): cooperative localization and path planning. The theme running through in all of the work is the use of bearing only sensors, with a focus on monocular video cameras mounted on ground robots and UAVs. To begin with, we derive the conditions for the complete observability of the bearing-only cooperative localization problem. The key element of this analysis is the Relative Position Measurement Graph (RPMG). The nodes of an RPMG represent vehicle states and the edges represent bearing measurements …

Launching Return-Oriented Programming Attacks Against Randomized Relocatable Executables, Limin Liu, Jin Han, Debin Gao, Jiwu Jing, Daren Zha

Research Collection School Of Computing and Information Systems

Since the day it was proposed, return-oriented programming has shown to be an effective and powerful attack technique against the write or execute only (W ⊕ X) protection. However, a general belief in the previous research is, systems deployed with address space randomization where the executables are also randomized at run-time are able to defend against return-oriented programming, as the addresses of all instructions are randomized. In this paper, we show that due to the weakness of current address space randomization technique, there are still ways of launching return-oriented programming attacks against those well-protected systems efficiently. We demonstrate and evaluate …

Micro-Fracture Simulation In Human Vertebral Body Due To Weight Lifting, Harcharan S. Ranu

International Journal of Exercise Science: Conference Proceedings

Abstract Lumbar vertebrae are a heavily loaded component of the human body. They are subjected to repetitive loading in daily activities. However, limited information on failure mechanism of lumbar vertebrae are available to date. Thus, the need to develop an analytical model to predict stress-fracture characteristics of vertebral body. A linear elastic fracture mechanics approach has been considered and a mathematical model has been proposed so that the predictions can be made more easily related to the occurrence of injury. Study reveals that for a person weighing 1334 N and lifting a weight of 345 kg during squat exercise causes …

Curriculum Committee Summary Memo 11/15/2011, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Data Warehouse And Business Intelligence: Comparative Analysis Of Olap Tools, Mahesh Kumar Bhetwal

Regis University Student Publications (comprehensive collection)

Data Warehouse applications are designed basically to provide the business communities with accurate and consolidated information. The objective of Data Warehousing applications are not just for collecting data and reporting, but rather for analyzing, it requires technical and business expertise tools. To achieve business intelligence it requires proper tools to be selected. The most commonly used Business intelligence (BI) technologies are Online Analytical Processing (OLAP) and Reporting tools for analyzing the data and to make tactical decision for the better performance of the organization, and more over to provide quick and fast access to end user request. This study will …

Need Exceeds Space: A Serials Withdrawal Project At The University Of Rhode Island University Libraries, Brian T. Gallagher, Andrée J. Rathemacher

Public Services Faculty Publications

In 2009, the University of Rhode Island’s main library, the Robert L. Carothers Library and Learning Commons in Kingston, initiated a pilot serials withdrawal project when the need for space for new services exceeded the space available in the library. A joint venture between Acquisitions and Access Services, the successful pilot led to a subsequent withdrawal project in summer 2010 to free additional space in the library. The print journals targeted for withdrawal were ones to which the library had online access through licensed journal archives. Considerations on what to withdraw, the process of identifying titles for withdrawal, and the …

Recommendations From The North Star State, Julia M. Williams, Gerry Nierengarten

The Rural Educator

Administrators in America’s rural school districts are uniquely challenged to meet increased achievement expectations despite decreasing resources. Mandated reform initiatives, population decline, and the complex formulas used to distribute tax-based funding have disproportionately affected rural schools. In this mixed-methods study, researchers first surveyed K-12 administrators and then conducted focus groups across six regions in Minnesota to determine the nature of the challenges specific to rural administrators and to document their perceived needs for interventions, training, and policy changes. The study identified two categories of common concern: student achievement and fiscal management. Within the category of student achievement, administrators identified four …

On The Effect Of Functionally Graded Materials On Resonances Of Rotating Beams, Arnaldo J. Mazzei Jr.

Mechanical Engineering Publications

Radially rotating beams attached to a rigid stem occur in several important engineering applications. Some examples include helicopter blades, turbine blades and certain aerospace applications. In most studies the beams have been treated as homogeneous. Here, with a goal of system improvement, non-homogeneous beams made of functionally graded materials are explored. The effects on the natural frequencies of the system are investigated. Euler-Bernoulli theory, including an axial stiffening effect and variations of both Young's modulus and density, is employed. An assumed mode approach is utilized, with the modes taken to be beam characteristic orthogonal polynomials. Results are obtained via Rayleigh-Ritz …

Assessing Budget Delays In The Commonwealth Of Virginia: A Cross State Analysis Of Political And Economic Factors, Emily Newton

Theses and Dissertations

This paper assessed factors that delayed the passage of the annual budget bill specifically in Virginia and also in 13 structurally similar states including: Arizona, Connecticut, Indiana, Kentucky, Maine, Minnesota, Montana, New Hampshire, North Carolina, North Dakota, Texas, Washington, and Wyoming. Virginia was the core focus of this study, but the variables detailed below were also measured for all thirteen states in an effort to broaden the scope of the study, and determine which political and economic factors affected the budget passage rates in Virginia and the 13 other states. Political and economic explanations were tested to examine their relationship …

Solid Oxide Fuel Cell Process And Apparatus, Mathew Ellis Cooper, David J. Bayless, Jason P. Trembly

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Conveying gas containing sulfur through a sulfur tolerant planar solid oxide fuel cell (PSOFC) stack for sulfur scrubbing, followed by conveying the gas through a non-sulfur tolerant PSOFC stack. The sulfur tolerant PSOFC stack utilizes anode materials, such as LSV, that selectively convert H₂S present in the fuel stream to other non-poisoning sulfur compounds. The remaining balance of gases remaining in the completely or near H₂S-free exhaust fuel stream is then used as the fuel for the conventional PSOFC stack that is downstream of the sulfur-tolerant PSOFC. A broad range of fuels such as gasified coal, …

Classroom Community: Questions Of Apathy And Autonomy In A High School Jewelry Class, Samuel E. Steadman

Theses and Dissertations

Student motivation is investigated in this study as a means of abrogating apathy within a public high school Jewelry course. The study is an attempt to answer a personal question of whether students could be internally motivated to a level of excitement that they would take ownership for their personal learning and the learning of their classmates. The study also addresses four main points that cause apathy, or are caused by apathy, they are: zero sum competition, compassion and support for classmates,ownership of the physical facilities, and the development of a conscientious public. Through a desire to test data on …

Describing Connections Between Science Content And Future Careers: Implementing Texas Curriculum For Rural At-Risk High School Students Using Purposefully-Designed Field Trips, Tommye Hutson, Susan Cooper, Tony Talbot

The Rural Educator

The state of Texas has an ‘essential knowledge’ component in some high school science courses indicating that students be able to describe connections between academic science content and future jobs or training through effective exposure to course content. The participants in this study were from a small rural high school in central Texas. Each was labeled as ‘at-risk’ and self-identified an inability to describe those types of connections after earning credit in more than one science course with that ‘essential knowledge’ component. A career-focused field trip to a local vocational/technology training center was designed to address that particular deficit. This …

A Distance-Delivered Teacher Education Program For Rural Culturally And Linguistically Diverse Teacher Candidates, Gayla Lohfink, Amanda Morales, Gail Shroyer, Sally Yahnke, Cecilia Hernandez

The Rural Educator

This article describes a collaborative, distance-delivered, teacher preparation program for rural, culturally and linguistically diverse (CLD) teacher candidates. Multiple institutions partnered with one university in order to diversify the teaching force in the region and meet the needs of CLD students living there. In describing the program’s design and implementation phases, a focus on cultural responsiveness to the candidates’ needs, their rural settings, and high populations of Latino/a students in the rural areas in which they were trained is presented. Assessment of each implementation phase guided program practice for the participants’ training as effective teachers. Relevant discussion indicates that even …

Mathematics Anxiety And The College Student, Amanda Mccloy

Theses and Dissertations

This study was designed to investigate whether mathematics anxiety is correlated to choice of major in college, the need to be enrolled in a remedial math course and average mathematics grades. Types of mathematical problems, statements and situations were also viewed to determine which of the latter caused the greatest anxiety among volunteers. Volunteers were given an experimenter designed mathematics anxiety survey in which they rated problems, statements and situations pertaining to math on a five-point Likert scale. Upon performance of correlations, results proved non-significant for all conditions. Thus, mathematics anxiety in this particular sample was not correlated to choice …

Preparation, Properties, And Reactivity Of Carbonylrhodium(I) Complexes Of Di(2-Pyrazolylaryl)Amido-Pincer Ligands, Sarath Wanniarachchi, Brendan J. Liddle, Sergey V. Lindeman, James R. Gardinier

Chemistry Faculty Research and Publications

A series of six carbonylrhodium(I) complexes of three new and three previously reported di(2-3R-pyrazolyl)-p-Z/X-aryl)amido pincer ligands, (^RZX)Rh(CO), (R is the substituent at the 3-pyrazolyl position proximal to the metal; Z and X are the aryl substituents para- to the arylamido nitrogen) were prepared. The metal complexes were studied to assess how their properties and reactivities can be tuned by varying the groups along the ligand periphery and how they compared to other known carbonylrhodium(I) pincer derivatives. This study was facilitated by the discovery of a new CuI-catalyzed coupling reaction between 2-(pyrazolyl)-4-X-anilines (X = Me or …

Montana Kaimin, November 15, 2011, Students Of The University Of Montana, Missoula

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Sweep, Step, Pulse, And Frequency-Based Techniques Applied To Protein Monolayer Electrochemistry At Nanoparticle Interfaces, Debbie S. Campbell-Rance, Tran T. Doan, Michael C. Leopold

Chemistry Faculty Publications

Protein monolayer electrochemistry (PME), a strategy using synthetic platforms to study the electron transfer (ET) properties of adsorbed proteins, has been successfully applied to proteins adsorbed at monolayer-protected gold cluster (MPCs) assembled films, an adsorption interface shown to be an effective alternative, compared to traditional self-assembled monolayer (SAM) films, for the immobilization and study of ET proteins. Within PME studies, cyclic voltammetry (CV) remains the most commonly applied electrochemical technique in spite of several limitations that occur when the sweep technique is used at either platform. In particular, CV for PME at MPC films results in analysis complications stemming from …

Grand Valley Forum, Volume 036, Number 12, November 14, 2011, Grand Valley State University

2011-2012, Volume 36

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

Exploring The Barriers To Independent Study And Learning In First Year Undergraduate Engineering Students?, Robert Martin Morris

Papers, presentations and other resources

This mixed method case study was carried out in the Technological University Dublin, Ireland and was conducted with the co-operation of four experienced lecturers of engineering and three groups of first year undergraduate engineering students.

The main aim of the research was to identify factors which represent barriers to the independent study and learning of first year engineering students.

Many first year engineering students do not return to college for the second year of their programmes. Many reasons for this are identified in the research, including the failure of students to pass assessments and exams as a result of the …

Ecem European Chemical V. The Purolite Company

2011 Decisions

USDC for the Eastern District of Pennsylvania

Extreme Math Makeover: Mathematics Assessment And Reporting In The Era Of The Common Core Standards, Glenn W. "Max" Mcgee

Publications & Research

This presentation discusses the need to develop high quality performance based assessments of the Common Core Mathematical Standards and Mathematical Practices. Several examples of performance assessments from high achieving countries as well as from the 2009 PISA test are included.

Oxidative Stress And Heme Oxygenase-1 Regulated Human Mesenchymal Stem Cells Differentiation, Luca Vanella, Christopher Sanford Jr., Dong Hyun Kim, Nader G. Abraham, Nabil Ebraheim

Biochemistry and Microbiology

This paper describes the effect of increased expression of HO-1 protein and increased levels of HO activity on differentiation of bone-marrow-derived human MSCs. MSCs are multipotent cells that proliferate and differentiate into many different cell types including adipocytes and osteoblasts. HO, the rate-limiting enzyme in heme catabolism, plays an important role during MSCs differentiation. HO catalyzes the stereospecific degradation of heme to biliverdin, with the concurrent release of iron and carbon monoxide. Upregulation of HO-1 expression and increased HO activity are essential for MSC growth and differentiation to the osteoblast lineage consistent with the role of HO-1 in hematopoietic stem …

College Voice Vol. 95 No. 7, Connecticut College

2011-2012

No abstract provided.