Digital Commons Network^™

Estimating Correlation Under Interval Uncertainty, Ali Jalal-Kamali, Vladik Kreinovich

Departmental Technical Reports (CS)

In many engineering situations, we are interested in finding the correlation ρ between different quantities x and y based on the values x_i and y_i of these quantities measured in different situations i. Measurements are never absolutely accurate; it is therefore necessary to take this inaccuracy into account when estimating the correlation ρ. Sometimes, we know the probabilities of different values of measurement errors, but in many cases, we only know the upper bounds Δ_xi and Δ_yi on the corresponding measurement errors. In such situations, after we get the measurement results X_i and Y_{i …}

Combinatorics Of Two-Toned Tilings, Arthur T. Benjamin, Phyllis Chinn, Jacob N. Scott '11, Greg Simay

All HMC Faculty Publications and Research

We introduce the function a(r, n) which counts tilings of length n + r that utilize white tiles (whose lengths can vary between 1 and n) and r identical red squares. These tilings are called two-toned tilings. We provide combinatorial proofs of several identities satisfied by a(r, n) and its generalizations, including one that produces kth order Fibonacci numbers. Applications to integer partitions are also provided.

Mitochondrial Dna Analysis By Denaturing High-Performance Liquid Chromatography For The Characterization And Separation Of Mixtures In Forensic Samples, Richard Kristinsson

Electronic Theses and Dissertations

A mixture of different mtDNA molecules in a single sample is a significant obstacle to the successful use of standard methods of mtDNA analysis (i.e., dideoxy dye-terminator sequencing). Forensic analysts often encounter either naturally occurring mixtures (e.g., heteroplasmy) or situational mixtures typically arising from a combination of body fluids from separate individuals. The ability to accurately resolve and interpret these types of samples in a timely and cost efficient manner would substantially increase the power of mtDNA analysis and potentially provide valuable investigative information by allowing its use in cases where the current approach is limited or fails. Therefore, this …

The Attachment And Clinical Issues Questionnaire (Aciq) : Scale Development, Marc A. Lindberg Ph.D., Stuart W. Thomas

Psychology Faculty Research

In line with dynamic systems and dialectical theories of development, it was theorized that a psychopathology such as an addiction could have several causes (equifinality) and that more specific diagnoses and treatments of the most salient clinical issuesfor individuals coming from different developmental paths could increase the success rates of most therapies. Further, the issues from a developmental dynamic systems perspective should include not only individual clinical issues, but also relational, familial, peer, and organizational functioning. The Attachment and Clinical Issues Questionnaire (ACIQ) was developed as a research and clinical instrument relevant to these concerns. The 29 scales were based …

Proxy Pattern-Mixture Analysis For A Binary Variable Subject To Nonresponse., Rebecca H. Andridge, Roderick J. Little

The University of Michigan Department of Biostatistics Working Paper Series

We consider assessment of the impact of nonresponse for a binary survey

variable Y subject to nonresponse, when there is a set of covariates

observed for nonrespondents and respondents. To reduce dimensionality and

for simplicity we reduce the covariates to a continuous proxy variable X

that has the highest correlation with Y, estimated from a probit

regression analysis of respondent data. We extend our previously proposed

proxy-pattern mixture analysis (PPMA) for continuous outcomes to the binary

outcome using a latent variable approach. The method does not assume data

are missing at random, and creates a framework for sensitivity analyses.

Maximum …

Thermodynamics Of Strongly Interacting Fermions In Two-Dimensional Optical Lattices, Ehsan Khatami, Marcos Rigol

Faculty Publications

We study finite-temperature properties of strongly correlated fermions in two-dimensional optical lattices by means of numerical linked cluster expansions, a computational technique that allows one to obtain exact results in the thermodynamic limit. We focus our analysis on the strongly interacting regime, where the on-site repulsion is of the order of or greater than the band width. We compute the equation of state, double occupancy, entropy, uniform susceptibility, and spin correlations for temperatures that are similar to or below the ones achieved in current optical lattice experiments. We provide a quantitative analysis of adiabatic cooling of trapped fermions in two …

The Texts Of Early Greek Philosophers, The Complete Fragments And Selected Testimonies Of The Major Presocratics, By Daniel Graham, Cambridge University Press, 2010, Tiberiu Popa

LAS Faculty Book Reviews

No abstract provided.

Room: A Novel, By Emma Donoghue, Little, Brown, And Company, 2010, Judi Morrel

LAS Faculty Book Reviews

No abstract provided.

The Omnivore's Dilemma: The Natural History Of Four Meals By Michael Pollan, Penguin 2006, Judi Morrel

LAS Faculty Book Reviews

No abstract provided.

Fabrication And Performance Of A Microfluidic Traveling-Wave Electrophoresis System, K. D. Jo, J. E. Schiffbauer, Boyd F. Edwards, R. L. Carroll, A. T. Timperman

All Physics Faculty Publications

A microfluidic traveling-wave electrophoresis (TWE) system is reported that uses a locally defined traveling electric field wave within a microfluidic channel to achieve band transport and separation. Low voltages, over a range of −0.5 to +0.5 V, are used to avoid electrolysis and other detrimental redox reactions while the short distance between electrodes, 25 μm, provides high electric fields of 200 V cm⁻¹. It is expected that the low voltage requirements will simplify the future development of smaller portable devices. The TWE device uses four interdigitated electrode arrays: one interdigitated electrode array pair is on the top of …

Changing The Way We View Humanity And The Rest Of Nature, Robert Costanza

Institute for Sustainable Solutions Publications and Presentations

An introduction is presented in which the editor discusses various reports within the issue on topics including the idea of ecosystem services, how ecosystem aided to solve the mother of all problems and how ecosystem services offer real solutions to problems.

A Global Partnership For Ecosystem Services, Dolf De Groot, Robert Costanza, Dieter Van Den Broeck, James Aronson

Institute for Sustainable Solutions Publications and Presentations

The article offers information on the participation of the Baviaanskloof Mega Reserve in the Ecosystem Services Partnership (ESP) in South Africa. It mentions that an active group of scientists has been working with the local and ESP to restore the Mega Reserve using the ecosystem services. The group combines a learning village to raise awareness of the project and a tree nursery that specializes in indigenous species.

Measuring Stability Of Threshold-Based Feature Selection Techniques, Huanjing Wang, Taghi Khoshgoftaar

Computer Science Faculty Publications

Feature selection has been applied in many domains, such as text mining and software engineering. Ideally a feature selection technique should produce consistent out- puts regardless of minor variations in the input data. Re- searchers have recently begun to examine the stability (robustness) of feature selection techniques. The stability of a feature selection method is defined as the degree of agreement between its outputs to randomly-selected subsets of the same input data. This study evaluated the stability of 11 threshold-based feature ranking techniques (rankers) when applied to 16 real-world software measurement datasets of different sizes. Experimental results demonstrate that AUC …

Performance Of Coiled Tube Ultraviolet Reactors To Inactivate Escherichia Coli W1485 And Bacillus Cereus Endospores In Raw Cow Milk And Commercially Processed Skimmed Cow Milk, Ruplal Choudhary, Srinivasaro Bandla, Dennis G. Watson, John Haddock, Amer Abughazaleh, Bhaskar Battacharya

Articles

Two coiled tube reactors were designed to investigate the influence of Reynolds number (Re) and diameter of fluid carrying tube on UV-C inactivation of Escherichia coli W1485 and Bacillus cereus endospores in raw cow milk (RCM) and skimmed cow milk (SCM) at room temperature. UV reactors were constructed using perfluoroalkoxy (PFA) tubing having internal diameters of 1.6 and 3.2 mm and each had a residence time of 11.3 s. Four levels of Re were tested for each milk type, each tube size and each bacteria type. Inactivation efficiency increased as the Re increased in both the reactors for both types …

Chemical Activity In Yba2cu3o7 − Δ Across The Normal To Superconducting Phase Transition, Juana Vivó Acrivos

Faculty Publications, Chemistry

The Gibbs free enthalpy, chemical activity across the transition temperature to superconductivity, Tc in YBa2Cu3O7 − δ is obtained from reciprocally enhanced X-Ray absorbance, XAS and diffraction, XRD data near the Ba L3,2 edges' energy Ea, and orientations in the X-ray beam for preferred Miller indexed [HKL] planes' scattering, that are enhanced near Tc. The standard enthalpy and entropy for the formation of mixed normal metal/superconducting domains above Tc, determined individually across the two Ba L3,2 edges, to better than a percent accuracy: ΔH≠≥ = − 220 meV, and ΔS≠≥ = − 2 meV/K when 121 ≥ T ≥ 92 …

Harnessing Opportunities In Non-Animal Asthma Research For A 21st-Century Science, Gemma L. Buckland

Experimentation Collection

The incidence of asthma is on the increase and calls for research are growing, yet asthma is a disease that scientists are still trying to come to grips with. Asthma research has relied heavily on animal use; however, in light of increasingly robust in vitro and computational models and the need to more fully incorporate the ‘Three Rs’ principles of Replacement, Reduction and Refinement, is it time to reassess the asthma research paradigm? Progress in non-animal research techniques is reaching a level where commitment and integration are necessary. Many scientists believe that progress in this field rests on linking disciplines …

Velocity Contour Weighting Method. Ii: Evaluation In Trapezoidal Channels And Roughness Sensitivity, Daniel Howes, Brett F. Sanders

BioResource and Agricultural Engineering

The Velocity Contour Weighting Method (VCWM) was developed in Part I to accurately estimate the cross-sectional average velocity of a prismatic channel flow using acoustic Doppler velocity meter (ADVM) measurements of centerline velocity. Here, the VCWM is validated by its successful application to 25 different concrete-lined trapezoidal channels used for irrigation water delivery. At each site, the cross-sectional distribution of velocity is measured by an acoustic Doppler velocimeter (ADV), which is moved horizontally and vertically through a sampling grid. Multiple tests at some sites led to a total of 51 sets of cross-sectional measurements. ADVM measurements are simulated by interpolating …

Understanding The Molecular Information Contained In Principal Component Analysis Of Vibrational Spectra Of Biological Systems, Franck Bonnier, Hugh Byrne

Articles

K-means clustering followed by Principal Component Analysis (PCA) is employed to analyse Raman spectroscopic maps of single biological cells. K-means clustering successfully identifies regions of cellular cytoplasm, nucleus and nucleoli, but the mean spectra do not differentiate their biochemical composition. The loadings of the principal components identified by PCA shed further light on the spectral basis for differentiation but they are complex and, as the number of spectra per cluster is imbalanced, particularly in the case of the nucleoli, the loadings under-represent the basis for differentiation of some cellular regions. Analysis of pure bio-molecules, both structurally and spectrally distinct, in …

Estimating Landscape Irrigated Areas And Potential Water Conservation At The Rural-Urban Interface Using Remote Sensing And Gis, Fayek A. Farag, Christopher M. U. Neale, Roger Kjelgren, Joanna Endter-Wada

Plants, Soils, and Climate Faculty Publications

Research goals were to analyze patterns of urban landscape water use, assess landscape water conservation potential, and identify locations with capacity to conserve. Methodological contributions involved acquiring airborne multispectral digital images over two urban cities which were processed, classified, and imported into a GIS environment where landscaped area were extracted and combined with property and water billing data and local evapotranspiration rates to calculate landscape irrigation applications exceeding estimated water needs. Additional analyses were conducted to compare classified aerial images to ground-measured landscaped areas, landscaped areas to total parcel size, water use on residential and commercial properties, and turf areas …

Measurement Of Magnetic Susceptibility In Pulsed Magnetic Fields Using A Proximity Detector Oscillator, S Ghannadzadeh, M Coak, I Franke, P A. Goddard, J Singleton, Jamie L. Manson

Chemistry and Biochemistry Faculty Publications

We present a novel susceptometer with a particularly small spatial footprint and no moving parts. The susceptometer is suitable for use in systems with limited space where magnetic measurements may not have been previously possible, such as in pressure cells and rotators, as well as in extremely high pulsed fields. The susceptometer is based on the proximity detector oscillator, which has a broad dynamic resonant frequency range and has so far been used predominantly for transport measurements. We show that for insulating samples, the resonance frequency behavior as a function of field consists of a magnetoresistive and an inductive component, …

The Effects Of Problem-Based Learning In Math And Science On High Potential Elementary School Students, Tracy Ford Inman

Dissertations

This study explored the effects of problem-based learning (PBL) on growth in both math achievement and science process skills within a sample of high potential and high ability students in grades 3 through 6, particularly students from low socio-economic (SES) backgrounds. Six elementary schools were assigned to one of three treatment groups: (a) PBL instruction in math and science in ability-grouped target classes and one-day-a-week magnet program; (b) PBL instruction in math and science in ability-grouped target classes; and (c) non-PBL instruction in math and science as a control group. Stemming from data gathered in Project GEMS (Gifted Education in …

Indigenous Australians Fight Climate Change With Fire, Scott Heckbert, Jeremy Russell-Smith, Andrew Reeson, Glenn James

Institute for Sustainable Solutions Publications and Presentations

The article focuses on the move of Indigenous people in Australia to implement fire management in an effort to improve landscape condition and reduce greenhouse gas emissions. It highlights the launch of the West Arnhem Land Fire Abatement (WALFA) project, a prime example of scientists, governments, Indigenous land managers, and carbon markets connecting to offer innovative solutions to resource management and economic development. It also highlights ecosystem services in the region.

Mapping Shallow Coastal Ecosystems: A Case Study Of A Rhode Island Lagoon, Mark Stolt, Michael Bradley, Jim Turenne, Maggie Payne, Eric Scherer, Giancarlo Cicchetti, Emily Shumchenia, Marisa Guarinello, John W. King, Jon Boothroyd, Bryan Oakley, Carol Thornber, Pete August

Natural Resources Science Faculty Publications

In order to effectively study, manage, conserve, and sustain shallow-subtidal ecosystems, a spatial inventory of the basic resources and habitats is essential. Because of the complexities of shallow-subtidal substrates, benthic communities, geology, geomorphology, and water column attributes, few standard protocols are fully articulated and tested that describe the mapping and inventory processes and accompanying interpretations. In this paper, we describe a systematic approach to map Rhode Island’s shallow-subtidal coastal lagoon ecosystems, by using, integrating, and reconciling multiple data sets to identify the geology, soils, biological communities, and environments that, collectively, define each shallow-subtidal habitat. We constructed maps for these lagoons …

Soil Chemistry And The Recovery Of Sensitive Watersheds From Chronic Acidification, Chris E. Johnson

Civil and Environmental Engineering - All Scholarship

No abstract provided.

Cagan Type Rational Expectations Model On Time Scales With Their Applications To Economics, Funda Ekiz

Masters Theses & Specialist Projects

Rational expectations provide people or economic agents making future decision with available information and past experiences. The first approach to the idea of rational expectations was given approximately fifty years ago by John F. Muth. Many models in economics have been studied using the rational expectations idea. The most familiar one among them is the rational expectations version of the Cagans hyperination model where the expectation for tomorrow is formed using all the information available today. This model was reinterpreted by Thomas J. Sargent and Neil Wallace in 1973. After that time, many solution techniques were suggested to solve the …

Confidentiality Preserving Security Properties For Cyber-Physical Systems, Thoshitha T. Gamage, Thomas P. Roth, Bruce M. Mcmillin

Computer Science Faculty Research & Creative Works

The work in this paper presents recent advances in developing a theory of information flow security specifically geared towards preserving the event confidentiality in Cyber-Physical Systems (CPSs). Preserving the confidentiality of sensitive internal actions is a unique challenge in CPSs due to the inherent external observability of such systems and the tight coupling between their cyber and physical domains. the far-reaching objective of this work is to develop a science of self-obfuscating systems based on the composition of simple building blocks. a model of Nondeducibility composes the building blocks under information flow security properties. to this end, this work presents …

Geosciences Newsletter - 2011, Department Of Geosciences

Geological and Environmental Sciences News

Vol. 5, No. 1

• Publications
• MGRRE
• Field Trips
• Graduate News
• Alumni
• Advisory Board
• Gifts
• Grants
• Alumni Update

The Iron Range Engineering Pbl Curriculum: How Students Adapt To And Function Within Pbl, Rose M. Marra, Betsy Palmer, Ron Ulseth, Bart Johnson

Integrated Engineering Department Publications

Iron Range Engineering is a unique complete-PBL curriculum for upper division students. Rather than studying about engineering in traditional engineering courses, IRE students solve complex and ill-structured industry problems in mining, milling, and manufacturing industries. To support students’ transition to PBL and to facilitate deep approaches to learning technical and professional competencies required for the engineers of the future, faculty have created a variety of structures. This paper describes IRE’s PBL implementation and reports the results of a qualitative study of their students.

Math History Study Abroad Program: Learning Math History In A Cultural Context, Donna Pierce

ACMS Journal 2010-2011

In January 2011 fifteen Whitworth University students participated in a program where they studied math history in a historical context on-site in Italy, Germany and England. Walking amongst the Roman engineering wonders, experiencing the mathematical beauty of Renaissance art and architecture, seeing the inventions, original papers and instruments of Galileo, DaVinci, Euler, Newton and others, and learning from experts about the effects of war and oppression on society, gave the students new insights into the worldview perspectives of men and women responsible for major developments in mathematics. This paper shares some of these insights and how they contributed to the …

Library Impact Statement For Csc 523 Advanced Intrusion Detection And Defense, Amanda Izenstark

Library Impact Statements

Library Impact Statement for CSC 523 Advanced Intrusion Detection and Defense. No new library resources are required to support this course.