Digital Commons Network^™

Why Feynman Path Integration?, Jaime Nava, Juan Ferret, Vladik Kreinovich, Gloria Berumen, Sandra Griffin, Edgar Padilla

Departmental Technical Reports (CS)

To describe physics properly, we need to take into account quantum effects. Thus, for every non-quantum physical theory, we must come up with an appropriate quantum theory. A traditional approach is to replace all the scalars in the classical description of this theory by the corresponding operators. The problem with the above approach is that due to non-commutativity of the quantum operators, two mathematically equivalent formulations of the classical theory can lead to different (non-equivalent) quantum theories. An alternative quantization approach that directly transforms the non-quantum action functional into the appropriate quantum theory, was indeed proposed by the Nobelist Richard …

Expanding Algorithmic Randomness To The Algebraic Approach To Quantum Physics: Kolmogorov Complexity And Quantum Logics, Vladik Kreinovich

Departmental Technical Reports (CS)

Physicists usually assume that events with a very small probability cannot occur. Kolmogorov complexity formalizes this idea for non-quantum events. We show how this formalization can be extended to quantum events as well.

Strings Lead To Lattice-Type Causality, Francisco Zapata, Essau Ramirez, Joel A. Lopez, Olga Kosheleva

Departmental Technical Reports (CS)

Traditional causality relation of special relativity is a lattice in the simplest case of 1-D space (2-D space-time), but it is no longer a lattice in the actual 3-D space (and 4-D space-time). We show that if we take into account effects of string theory, then we get a lattice-type causality relation even for the 4-D space-time.

Surface Morphology Of Platelet Adhesion Influenced By Activators, Inhibitors And Shear Stress, Melanie Groan Watson

Doctoral Dissertations

Platelet activation involves multiple events, one of which is the generation and release of nitric oxide (NO), a platelet aggregation inhibitor. Platelets simultaneously send and receive various agents that promote a positive and negative feedback control system during hemostasis. Although the purpose of platelet-derived NO is not fully understood, NO is known to inhibit platelet recruitment. NO's relatively large diffusion coefficient allows it to diffuse more rapidly than platelet agonists. It may thus be able to inhibit recruitment of platelets near the periphery of a growing thrombus before agonists have substantially accumulated in those regions.

Results from two studies in …

Saving Space And Time Using Index Merging, Lubomir Stanchev, Grant Weddell

Computer Science and Software Engineering

Managing digital information is an integral part of our society. Efficient access to data is supported through the use of indices. Although indices can reduce the cost of answering queries, they have two significant drawbacks: they take additional storage space and their maintenance can become a bottleneck. We address these challenges by introducing search data structures that reduce the need for storing redundant data among indices. Our experimental results with the main-memory version of these data structures show that our approach can reduce by half the storage space and can improve performance, where the highest performance improvement is achieved for …

Solving The Low Dimensional Smoluchowski Equation With A Singular Value Basis Set, Gregory E. Scott, Martin Gruebele

Chemistry and Biochemistry

Reaction kinetics on free energy surfaces with small activation barriers can be computed directly with the Smoluchowski equation. The procedure is computationally expensive even in a few dimensions. We present a propagation method that considerably reduces computational time for a particular class of problems: when the free energy surface suddenly switches by a small amount, and the probability distribution relaxes to a new equilibrium value. This case describes relaxation experiments. To achieve efficient solution, we expand the density matrix in a basis set obtained by singular value decomposition of equilibrium density matrices. Grid size during propagation is reduced from (100–1000) …

The Schizophrenic Solution: Dialectics Of Neurosis And Anti-Psychiatric Animus In Ralph Ellison’S Invisible Man, J. Bradford Campbell

English

This essay argues that Ralph Ellison's Invisible Man (1952)provides promising ground and a certain imperative to investigatethe underexamined intersections between literature and the historyof psychiatry. Especially where African American literatureis concerned, there has been a general reluctance to approachthese categories together, even while anecdotally history recordsnumerous engagements between the two. Ellison, for example,worked closely with Richard Wright and Dr. Fredric Wertham toestablish Harlem's LaFargue Clinic, the first and, in its time,only such institution committed to providing modern psychiatricservices to any and all who needed them. Ellison found in theclinic's practices a model of social psychiatry that did muchto address the …

Uni Schedule Of Classes, Fall 2010, University Of Northern Iowa

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the University of Northern Iowa.

Newsletter Fall 2010, College Of Education And Human Development

College of Education and Human Development News

No abstract provided.

Inferring Impulsive-Analytic Disposition From Written Responses, Kien Lim, Miguel Mendoza

Selected Works Temporary Series

Impulsive disposition refers to one’s proclivity to spontaneously proceed with an action that comes to mind without checking its relevance. Analytic disposition refers to one’s proclivity to analyze a problem situation and establishes a goal to guide one’s actions. An instrument, called the likelihood-to-act survey, was developed to measure students’ impulsive-analytic disposition. In this study, we sought to test and refine this instrument by analyzing 92 participants’ written responses to open-ended questions that were adapted from items in the likelihood-to-act survey. We found relatively strong correlations between participants’ disposition scores for written responses and those from the likelihood-to-act survey.

Continuing Discussion Of Mathematical Habits Of Mind, Annie Selden, Kien Lim

Selected Works Temporary Series

The idea of “mathematical habits of mind” has been introduced to emphasize the need to help students think about mathematics “the way mathematicians do.” There seems to be considerable interest among mathematics educators and mathematicians in helping students develop mathematical habits of mind. The objectives of this working group are: (a) to continue the discussion of various views and aspects of mathematical habits of mind begun at PME-NA 31, (b) to explore avenues for research, (c) to encourage research collaborations, and (d) to interest doctoral students in this topic. In the Proceedings of PME-NA 31, we provided an overview of …

Political Satire And British-American Relations In Five Decades Of Doctor Who, Marc Dipaolo

Faculty Books & Book Chapters

“Political Satire and British-American Relations in Five Decades of Doctor Who.”

Originally published in the Journal of Popular Culture. Vol. 43, Issue 5. 964 – 987. October 2010

To see more or purchase works by Marc DiPaolo, visit his Amazon page here: https://www.amazon.com/Marc-DiPaolo/e/B004LV7W6Y%3Fref=dbs_a_mng_rwt_scns_share

President's Strategic Initiative Report, Gregory B. Weymire

Accounting Historians Notebook

No abstract provided.

Cpa Client Bulletin, October 2010, American Institute Of Certified Public Accountants (Aicpa)

Newsletters

No abstract provided.

Fall 2010 Farquhar Forum, Farquhar College Of Arts And Sciences

The Farquhar Forum College Magazine

No abstract provided.

Reporter - October 1st 2010, Rit Reporter Staff

University Publications

No abstract provided.

A Junction And Drop-Shaft Boundary Conditions For Modeling Free Surface, Pressurized, And Mixed Free Surface-Pressurized Transient Flows, Arturo S. León, Xiaofeng Liu, Mohamed S. Ghidaoui, Arthur R. Schmidt, Marcelo H. García

Civil Engineering Faculty Publications and Presentations

A junction and drop-shaft boundary conditions (BCs) for one-dimensional modeling of transient flows in single-phase conditions (pure liquid) are formulated, implemented and their accuracy are evaluated using two Computational Fluid Dynamics (CFD) models. The BCs are formulated for the case when mixed flows are simulated using two sets of govern- ing equations, the Saint Venant equations for the free surface regions and the compressible water hammer equations for the pressurized regions. The proposed BCs handle all possible flow regimes and their combinations. The flow in each pipe can range from free surface to pressurized flow and the water depth at …

Housing Units Distribution Between Vegetated And Developed Areas, Anders Nordblom

Atlas of Maine

This map shows the distribution of housing units in the Belgrade lakes region in relation to vegetated and developed lands. Roads, hillshade, and bodies of water are added for reference.

Eastern Illinois Alumni (Fall 2010), Eastern Illinois University Alumni Association

Old Main Line/Eastern Illinois Alumni (2010)

EI & U Expect Greatness: The Campaign for Eastern Illinois University; Remembering Gilbert Fite (1918-2010); New Textbook Rental Service Facility Opens; EIU Beyond the Classroom; Tainted Love at EIU; Panther Athletics; etc.

Model-Based Control To Enhance A Novel Two Dimensional Positioning System, Chan Yet Wong, Carlos Montes, Laine Mears, John Ziegert

Publications

This paper presents a model-based control algorithm to address the delayed feedback that occurs in a novel two dimensional positioning system. The delayed feedback causes the motion control system unable to track the desire setpoint accurately and at the same time introduce following error. Thus, a Modified Smith Predictor is proposed to address the delayed feedback by having an inner plant model to predict the path during the delay. Furthermore, an online system identification scheme is proposed to improve the accuracy of the model used in Modified Smith Predictor. Simulation and experimental results of the Modified Smith Predictor and online …

Analysis Of Transformer Ratings In A Wind Farm Environment, John Mccarthy

ME in Sustainable Electrical Energy Systems

The grid connection transformer is one of the most expensive components of a wind farm development. If a transformer is under-utilised, this indicates that the initial capital outlay on the transformer was excessive. Overloading can lead to accelerated aging and increased losses. This project will investigate whether it is possible, by understanding the load profiles and stress conditions in a wind farm environment, to overload a transformer above its nameplate rating, thus reducing the capital outlay costs in developing a wind farm. The paper will investigate a specific wind farm overloading scenario and examine whether it is feasible, and financially …

Prism #49, October 2010, Office Of The Provost

Prism: Western Michigan University's Newsletter for Academic Affairs

No abstract provided.

Renewable Energy In Rural Amazônia: A Case Study Of Its Advantages And Limitations In Santo Antônio, Amy Plovnick

Independent Study Project (ISP) Collection

Isolated renewable energy projects are a promising alternative to diesel power for providing electricity in rural communities not connected to the conventional electricity transmission grid. However, there have been a limited number of such projects in rural Amazônia, and they often face obstacles that limit their sustainability. The objective of this study is to evaluate the environmental, social and economic impact of isolated renewable energy projects through a case study of a small-scale biomass and solar energy electrification project in the community of Santo Antônio, Pará. It will also evaluate the limitations to implementing and sustaining isolated renewable energy projects …

Infobrief Admissions (Census) - Fall 2010, Office Of Institutional Planning & Analysis

Office of Institutional Research

The InfoBrief is a publication that takes a very brief look at enrollment and is published every quarter after census.

Macalester Today Fall 2010, Macalester College

Macalester Today

No abstract provided.

Instruction Size Report, Fall 2010, University Of Northern Iowa

Institutional Effectiveness & Planning Documents

Gives breakdowns of student credit hours offered by status of instructor, average class size overall, and average class size by status of instructor.

Cosmology With Torsion: An Alternative To Cosmic Inflation, Nikodem Poplawski

Physics Faculty Publications

We propose a simple scenario which explains why our Universe appears spatially flat, homogeneous and isotropic. We use the Einstein–Cartan–Kibble–Sciama (ECKS) theory of gravity which naturally extends general relativity to include the spin of matter. The torsion of spacetime generates gravitational repulsion in the early Universe filled with quarks and leptons, preventing the cosmological singularity: the Universe expands from a state of minimum but finite radius. We show that the dynamics of the closed Universe immediately after this state naturally solves the flatness and horizon problems in cosmology because of an extremely small and negative torsion density parameter,Ω_S≈− …

The Greening Of The Information Systems Curriculum, Patricia Sendall, Li-Jen Shannon, Alan Peslak, Bruce Saulnier

Management Faculty Publications

The purpose of this study is related to Green Information Technology (IT), Green Computing, and/or Sustainability (GITS) curriculum initiatives in institutions of higher education in the US and abroad. The purpose of this study is threefold; 1) to evaluate whether GITS academic programs have been initiated in higher educational organizations; 2) to analyze if GITS programs and/or courses are currently in place; and 3) to investigate the conceptual framework of GITS across campuses.

Island Times, Oct 2010, Kevin Attra

Island Times Newspaper, 2010

No abstract provided.

Electronic Resources, Robert L. Bothmann

Library Services Publications

Emphasis will be on coding of electronic monographs and on the provider-neutral versus single-record approach.