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Impedance Feedback Control For Scanning Electrochemical Microscopy, David O. Wipf, Mario A. Apuche-Avlles

CAS Publications

A new constant-distance imaging method based on the relationship between tip impedance and tip-substrate separation has been developed for the scanning electrochemical microscope (SECM). The tip impedance is monitored by application of a high frequency ac voltage bias between the tip and auxiliary electrode. The high frequency ac current is easily separated from the dc level faradaic electrochemistry with a simple RC filter, which allows impedance measurements during feedback or generation/collection experiments. By employing a piezo-based feedback controller we are able to maintain the impedance at a constant value and, thus, maintain a constant tip-substrate separation. Application of the method …

Undergraduate Catalog, 2001-2002, Valparaiso University

Undergraduate Catalogs

No abstract provided.

Reliability And Validity Of Angular Joint Velocity Using Peak Motus 2000 Motion Analysis And Kin-Com Isokinetic Dynamometer, Meaghan Kuklok

Physical Therapy Scholarly Projects

Background and Purpose: Use of motion analysis systems for the study of human motion in research settings and clinical settings are becoming more prevalent. In a traditional sense, motion analysis systems are used for gait analysis; most recently, they are being utilized to analyze spinal motion, foot motion, and components of motion during sporting activities. Questions about the accuracy of these computerized motion analysis systems and the precision and reliability of the digitizing process remains. The purpose of this study is to determine the validity of the Peak Motus 2000 motion analysis system® (Peak Performance) in calculating dynamic velocities and …

Also, Too And Moreover In A Novel By Dorothy L. Sayers, Stephen H. Levinsohn

Work Papers of the Summer Institute of Linguistics, University of North Dakota Session

When Dorothy Sayers uses also in her novel The Documents in the Case, this indicates that the material that is added is at least as important as that to which it is added. She uses moreover, as Blakemore (1987) has observed, to indicate that the material that is added provides further evidence for a recently stated conclusion. Too is the 'elsewhere' additive. Sayers uses it when the information that is added confirms or contradicts a previous utterance or assumption. She also uses it when the material concerned is of lesser or greater importance than that to which it …

Of Hidden Agendas, Naked Emperors, And A Few Good Soldiers: The Conference's Breach Of Promise . . . Regarding Article 2 Damage Remedies, Roy Ryden Anderson

SMU Law Review

No abstract provided.

Technology Risks And Liabilities: Are You Covered?, Robert M. Roach Jr., Daniel L. Mckay

SMU Law Review

No abstract provided.

Revisiting The Jury System In Texas: A Study Of The Jury Pool In Dallas County, Ted M. Eades

SMU Law Review

No abstract provided.

Reexamining The Right To Trial By Jury, William V. Dorsaneo Iii

SMU Law Review

No abstract provided.

Jury Review After Reeves V. Sanderson Plumbing Products, Inc.: A Four-Step Algorithm, David Crump

SMU Law Review

No abstract provided.

A Study Of Arkansas Public School Superintendents' Knowledge Of And Attitudes Toward Charter Schools, William E. Broadnax

Theses and Dissertations

The purpose of this study was to explore reasons why most public school superintendents have not applied for the creation of a charter school, and to ascertain whether or not public school superintendents in Arkansas plan to open a charter school in their school district. In essence, this study investigated current knowledge and attitudes of Arkansas public school superintendents toward charter schools and Act 890 legislation. A non-experimental research design was conducted using a modified survey instrument (Ogden, 1995), which included all 310 public school superintendents in the State of Arkansas. A nonprobability sample of 160 superintendents completed and returned …

The Effects Of The Arkansas Leadership Academy's Strategic Leadership Institute For Teams On The Creation Of Learning Communities, Paula Griffith Cummins

Theses and Dissertations

The problem of this comparative study was to determine whether school districts that participated in the Arkansas Leadership Academy Strategic Leadership Institute for Teams exhibited more characteristics of a learning community, as identified by Hord (1997), than they did prior to participation. A secondary problem was to determine if districts that had significant participation in the Leadership Institute for Teams exhibited greater growth in the learning community characteristics than districts with no participation. The sample was drawn from Arkansas public school districts that had participated in any Leadership Institute for Teams during the identified time, with an equal number of …

A Combinatorial Interpretation Of Bessel Polynomials And Their First Derivatives As Ordered Hit Polynomials, John P. Mcsorley, Philip Feinsilver

Articles and Preprints

Consider the hit polynomial of the path P_{2n} embedded in the complete graph K_{2n}. We give a combinatorial interpretation of the n-th Bessel polynomial in terms of a modification of this hit polynomial, called the ordered hit polynomial. Also, the first derivative of the n-th Bessel polynomial is shown to be the ordered hit polynomial of P_{2n-1} embedded in K_{2n}.

An Empirical Investigation Of Four Tests For Interaction In The Context Of Factorial Analysis Of Covariance, Todd C. Headrick, George Vineyard

Publications

The Type I error and power properties of the parametric F test and three nonparametric competitors were compared in terms of a 3x 4 factorial analysis of covariance layout. The focus of the study was on the test for interaction either in the presence and/or absence of main effects. A variety of conditional distributions, sample sizes, levels of variate and covariate correlation and treatment effect sizes were investigated. The Puri and Sen (1969a) test had ultra-conservative Type I error rates and power losses when main effect(s) were present. The adjusted rank transform (Blair & Sawilowsky,1990; Salter & Fawcett; 1993) had …

Cannabinoids And The Immune System, Thomas W. Klein, Catherine A. Newton, Herman Friedman

Molecular Medicine Faculty Publications

The effect of cannabimimetic agents on the function of immune cells such as T and B lymphocytes, natural killer cells and macrophages has been extensively studied over the past several decades using human and animal paradigms involving whole animal models as well as tissue culture systems. From this work, it can be concluded that these drugs have subtle yet complex effects on immune cell function and that some of the drug activity is mediated by cannabinoid receptors expressed on the various immune cell subtypes. However, the overall role of the cannabinoid system of receptors and ligands in human health and …

Protection For Indigenous Knowledge: An International Law Analysis, Miriam L. Quinn

St. Thomas Law Review

A "Medicine Man"' working for the research foundation, Aston Laboratories, lost the cure for cancer. Dr. Robert Campbell, a brilliant research doctor stationed deep in the rainforests of Brazil, is on an assignment that could change the world of medicine forever. He is looking for a type of plant mutation that local medicine men, or witch doctors, use to cure cancer. The research was well-funded for many years until failure to report progress to the sponsoring foundation puts the project on hold. A young scientist, Dr. Rae Crane, goes to his rescue, learns of this magnificent cure and tries to …

Undergraduate Research Opportunities In Microelectronics At Boise State University, S. Burkett, J. Lusth, D. Russell, W. B. Knowlton, S. Parke

Chemistry and Biochemistry Faculty Publications and Presentations

Several opportunities exist for undergraduates in the Microelectronics area at Boise State University. This paper will describe the Research Experience for Undergraduates (REU) program funded by the National Science Foundation and other opportunities that have resulted for undergraduates due to external support. BSU became a NSF REU site for Microelectronics research in 1999. Each year 10 students are recruited nation-wide from various engineering and science disciplines to come to BSU for 8 weeks. The students work intensively with various faculty advisors and graduate student mentors. Another unique feature of our program is the tie to local industry. In 1999-2001, three …

Contents

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Using Manipulatives In Undergraduate Mathematics Courses, D. Moore

Journal of Mathematics and Science: Collaborative Explorations

Students in undergraduate mathematics classes not only benefit from the use of manipulatives in the classroom, but also enjoy them. This paper specifically outlines one successful activity that used manipulatives in a large section of a precalculus course and then explores possibilities in other courses. It also addresses the use of mathematics manipulatives as a platform to introduce both active and cooperative learning in a large lecture setting.

The Puerto Rico Collaborative For Excellence In Teacher Preparation (Pr-Cetp): Development Of A Knowledge Building Community Of Practice, J. Arce, S. Macksoud

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

The Design, Implementation, And Assessment Of A New Capstone Course Aimed At Science Education Majors, R. Betancourt, J. Arce

Journal of Mathematics and Science: Collaborative Explorations

This paper rationalizes the selection of the concept of energy as the central theme of a new capstone course aimed at science education majors. It describes the goals of the course and the activities that preceded the course design and led to the selection of the topics, of the educational materials, and of the teaching methodologies. It presents a sequential description of the manner in which the conceptual knowledge of energy was to be developed. The specific experiments, interactive demonstrations and other educational materials utilized for the conceptual development of the concept of energy in context are described and referenced. …

The Transition To College Process In Pr-Cetp Scholars, E. Rivera, M. Rosa, A. Santiago, N. Torres, M. Bravo

Journal of Mathematics and Science: Collaborative Explorations

This article describes a study about the experiences of a group of students during the transition from high school to college. The students are future teachers who evidenced a high level of academic achievement in high school and received merit scholarships from the Puerto Rico Collaborative for Excellence in Teacher Preparation (PR-CETP). Two groups of students were compared: those who sustained a high GPA during their freshman year, and those who did not and, therefore, no longer qualified for the scholarship. The study was carried out through focused interviews with eight students, from three universities, four of whom maintained the …

An Innovative University Course For Cooperating Teachers, M. Aguirre Ortiz, L. Gaspar

Journal of Mathematics and Science: Collaborative Explorations

The transformation of a course for certifying cooperating teachers in Puerto Rico is described. The course was transformed to strengthen the teaching of science and mathematics and to make the course more congruent with the educational principles of constructivism promoted by the CETP projects at the national level, including Puerto Rico. The 45-hour requirement was distributed over nine days. The Open Space strategy was modified to include multiple active teaching-learning and assessment techniques, which promoted a learning environment based on trust, dedication, and the commitment of all participants to learn and help each other learn. Even more relevant was the …

Understanding Of The Mole Concept Achieved By Students In A Constructivist General Chemistry Course, C. Utria-Echevarria, M. Bravo

Journal of Mathematics and Science: Collaborative Explorations

The purpose of this research project was to study the conceptual understanding achieved in a general chemistry course based on a constructivist approach. A group of 28 students participated in repeated measures obtained by means of conceptual maps about the mole concept prepared three times during the course: at the beginning the course, immediately after the concept was studied, and after studying other related concepts. In addition, eight students selected from the group of 28 were interviewed. The interviews were carried out focusing on their conceptual maps. The analysis of the repeated measures indicated significant differences among the three times, …

Concept Building Through Active Learning Experiences With The Calculator Based Laboratory (Cbl), N. Motta

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

Program Evaluation In The Context Of Debates In The Field: The Evaluation Of Pr-Cetp, M. Bravo

Journal of Mathematics and Science: Collaborative Explorations

This paper rationalizes the selection of the concept of energy as the central theme of a new capstone course aimed at science education majors. It describes the goals of the course and the activities that preceded the course design and led to the selection of the topics, of the educational materials, and of the teaching methodologies. It presents a sequential description of the manner in which the conceptual knowledge of energy was to be developed. The specific experiments, interactive demonstrations and other educational materials utilized for the conceptual development of the concept of energy in context are described and referenced. …

Journal Of Mathematics And Science: Collaborative Explorations

Journal of Mathematics and Science: Collaborative Explorations

No abstract provided.

The Children's School: Lessons For Inclusion, Leadership, And School Success, Beth Lief

Fordham Urban Law Journal

In recent years education has evolved into the country's number one public concern. Presidential, gubernatorial, mayoral, and legislative candidates all claim to care about educating our children. Successful schools should be used by educators and policy-makers as models. In order to reproduce the success of these schools, the reasons for their success must be identified. A school's achievement data gives important indications of why it succeeds. There are also innumerable studies and reports listing factors enabling school success. The Children's School in Brooklyn, New York is a school worthy of study. The leadership is superb; teachers know their students and …

The Extraction Of Classification Rules And Decision Trees From Independence Diagrams, Robert W. Kerbs

CCAC Theses and Dissertations

Databases are growing exponentially in many application domains. Timely construction of models that represent identified patterns and regularities in the data facilitate the prediction of future events based upon past performance. Data mining can promote this process through various model building techniques. The goal is to create models that intuitively represent the data and perhaps aid in the discovery of new knowledge.

Most data mining methods rely upon either fully-automated information-theoretic or statistical algorithms. Typically, these algorithms are non-interactive, hide the model derivation process from the user, require the assistance of a domain expert, are application-specific, and may not clearly …

Tracking Of Moving Objects In Scenery Using Subspace Projection Using Independent Component Analysis, Brian J. Noe, Fredric M. Ham

Aerospace, Physics, and Space Science Faculty Publications

A system is developed for tracking moving objects though natural scenery. A technique is presented for performing change detection on imagery to determine the difference between two images or a sequence of images. Form there an algorithm is presented to detect the presence of a new object and/or the deletion of objects. Then the application of a Variable Structure Interacting Multiple Model tracking filter is presented. The method of performing change detection is based upon the concept of image subspace projection. A set of basis image maps are formed when combined with a mixing matrix can recreate the original image. …

Multiband Microvariability Observations Of Bl Lacertae During The Outburst Of 1997, Sandra D. Clements, Michael T. Carini

Aerospace, Physics, and Space Science Faculty Publications

BL Lac was observed in the V and R bands on 11 nights in 1997 July during a major optical outburst. It varied continuously, exhibiting nightly variations ranging from 0.1 to 0.6 mag. Over the course of the 11 nights, BL Lac was seen to vary by 1.8 R magnitudes. Color variations were also observed, with BL Lac becoming bluer as it brightened. The influence of variable seeing conditions on the observed variations was investigated. No correlation was found between the observed microvariability and the local seeing conditions.