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Cleveland State University

2002

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The Effect Of Convection On Disorder In Primary Cellular And Dendritic Arrays, R. Trivedi, P. Mazumder, Surendra N. Tewari Dec 2002

The Effect Of Convection On Disorder In Primary Cellular And Dendritic Arrays, R. Trivedi, P. Mazumder, Surendra N. Tewari

Chemical & Biomedical Engineering Faculty Publications

Directional solidification studies have been carried out to characterize the spatial disorder in the arrays of cells and dendrites. Different factors that cause array disorder are investigated experimentally and analyzed numerically. In addition to the disorder resulting from the fundamental selection of a range of primary spacings under given experimental conditions, a significant variation in primary spacings is shown to occur in bulk samples due to convection effects, especially at low growth velocities. The effect of convection on array disorder is examined through directional solidification studies in two different alloy systems, Pb-Sn and Al-Cu. A detailed analysis of the spacing …

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Cleveland State University: An Economic Impact Study, Ziona Austrian Dec 2002

Cleveland State University: An Economic Impact Study, Ziona Austrian

All Maxine Goodman Levin School of Urban Affairs Publications

The economic value of an urban university to a metropolitan region is comprised of (1) the educational opportunities provided to students who rely on local institutions of higher education, (2) the unique contributions of urban universities to the social and political infrastructure of a region, and (3) the research and service contracts and other funds and philanthropic donations attracted to the campus by faculty and staff. If an urban university such as Cleveland State University (CSU) did not exist in the Cleveland metropolitan region, many, if not all of these economic and social contributions would be lost. In addition, the …

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The Impact Of Density: The Importance Of Nonlinearity And Selection On Flight And Fight Responses, Wendy C. Regoeczi Dec 2002

The Impact Of Density: The Importance Of Nonlinearity And Selection On Flight And Fight Responses, Wendy C. Regoeczi

Sociology & Criminology Faculty Publications

Unlike commonsense notions and the findings from animal research, the literature concerning the effects of density on human social behavior is paralyzed by contradictory findings. This article examines empirically two fundamental issues which could account for this and which are central to the density-crowding debate: (1) whether observed crowding effects are the result of causation or selection and (2)whether individuals are negatively affected by both low and high levels of density. Data from the Toronto Mental Health and Stress study are analyzed using structural equation modeling to investigate these questions. The results support the notion that the effects of density …

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Urban Universities And Real Estate Development, Ziona Austrian, Jill Norton Dec 2002

Urban Universities And Real Estate Development, Ziona Austrian, Jill Norton

All Maxine Goodman Levin School of Urban Affairs Publications

This report is intended to enhance the understanding of the role that urban colleges and universities have in local economic development through university real estate investment activities. Colleges and universities across the country are becoming more involved in property acquisition and development; however, there is limited research that explores the decision-making processes that are employed and the implications of these decisions on the larger community.

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Industrial Activity In Cleveland, Robert Sadowski, Ziona Austrian Dec 2002

Industrial Activity In Cleveland, Robert Sadowski, Ziona Austrian

All Maxine Goodman Levin School of Urban Affairs Publications

This report has four primary objectives. First, survey industrial activity in the city of Cleveland using employment and payroll data for the period from 1993 to 2000; report on key findings related to industry sectors and industries at the two-digit standard industrial classification (SIC) code level; and compare the city of Cleveland to suburban Cuyahoga County and the remainder of the Cleveland primary metropolitan statistical area (PMSA). Second, identify those industries in Cleveland that reported substantial employment levels, average annual wages, employment growth, and wage growth during the study period (high performing industries). Third, discuss the status of previously identified …

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Synthesis Of A Spacer-Armed Disulfated Tetrasaccharide Of Sb1a, A Carbohydrate Hapten Associated With Human Hepatocellular Carcinoma, Qin Li, Hui Li, Qing Li, Qing Hua Lou, Bin Su, Meng Shen Cai, Zhong Jun Li Nov 2002

Synthesis Of A Spacer-Armed Disulfated Tetrasaccharide Of Sb1a, A Carbohydrate Hapten Associated With Human Hepatocellular Carcinoma, Qin Li, Hui Li, Qing Li, Qing Hua Lou, Bin Su, Meng Shen Cai, Zhong Jun Li

Chemistry Faculty Publications

A disulfated tetrasaccharide fragment with a spacer arm of human hepatocellular carcinoma carbohydrate antigen SB1a, namely, 2-aminoethyl 3-O-sulfo-β-d-galactopyranosyl-(1→3)-2-acetamido-2-deoxy-β-d-galactopyranosyl-(1→4)-3-O-sulfo-β-d-galactopyranosyl-(1→4)-β-d-glucopyranoside was synthesized via a [2+1+1] block building mode. In the last coupling step toward the trisaccharide acceptor 8, benzoyl protected galactosyl bromide donor 14 was found to be much more reactive than the acetyl-protected donors. A disulfated tetrasaccharide fragment with a spacer arm of human hepatocellular carcinoma carbohydrate antigen SB1a was synthesized via a [2+1+1] block building mode.

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2002 Vol. 51 No. 3, Cleveland-Marshall College Of Law Nov 2002

2002 Vol. 51 No. 3, Cleveland-Marshall College Of Law

2000s

No abstract provided.

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Primary Dendrite Distribution And Disorder During Directional Solidification Of Pb-Sb Alloys, Jun Hui, R. Tiwari, X. Wu, Surendra N. Tewari, R. Trivedi Nov 2002

Primary Dendrite Distribution And Disorder During Directional Solidification Of Pb-Sb Alloys, Jun Hui, R. Tiwari, X. Wu, Surendra N. Tewari, R. Trivedi

Chemical & Biomedical Engineering Faculty Publications

Pb-2.2 wt pct Sb and Pb-5.8 wt pet Sb alloys have been directionally solidified from a single-crystal seed with its [100] orientation parallel to the growth direction, to examine the primary dendrite distribution and disorder of the dendrite arrays. The dendrite distribution and ordering have been investigated using analysis techniques such as the Gauss-amplitude fit to the frequency distribution of nearest and higher-order spacings, minimum spanning tree (MST), Voronoi polygon, and Fourier transform (FT) of the dendrite centers. Since the arrangement of dendrites is driven by the requirement to accommodate side-branch growth along the (100) directions, the FT images of …

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Compressive Properties Of Zone-Directionally Solidified Β-Nial And Its Off-Eutectic Alloys With Chromium And Tungsten, R. Asthana, R. Tiwari, Surendra N. Tewari Oct 2002

Compressive Properties Of Zone-Directionally Solidified Β-Nial And Its Off-Eutectic Alloys With Chromium And Tungsten, R. Asthana, R. Tiwari, Surendra N. Tewari

Chemical & Biomedical Engineering Faculty Publications

The ordered intermetallic compound β-NiAl and its pseudo-binary off-eutectic alloys with 1 at.% tungsten and 9.7 at.% chromium were directionally solidified (DS) in the ‘floating-zone’ mode, and tested for compressive strength and fracture behavior in the temperature range 300–800 K. The dual-phase structures created by the DS of ternary NiAl alloys led to improvements in both the compressive strength and the ductility. The room-temperature (300 K) 0.2% compressive yield strength (CYS) of DS NiAl(W) (623 MPa) is larger than the CYS of DS NiAl(Cr) (565 MPa) and DS NiAl (435 MPa). The CYS of the three alloys dropped …

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Rapid Determination Of Serum Melatonin By Esi–Ms–Ms With Direct Sample Injection, Shuming Yang, Xiaohui Zheng, Yan Xu, Xiang Zhou Oct 2002

Rapid Determination Of Serum Melatonin By Esi–Ms–Ms With Direct Sample Injection, Shuming Yang, Xiaohui Zheng, Yan Xu, Xiang Zhou

Chemistry Faculty Publications

This paper describes a rapid, simple and sensitive analytical method for the quantitative determination of melatonin in human serum by ESI–MS–MS with direct serum sample injection and on-line extraction. The method uses N-acetyltryptamine as the internal standard. It has high specificity and sensitivity for serum melatonin analysis. The internal calibration curve shows a wide linear range from 0.500 to 200 ng/ml with a correlation coefficient, R2>0.999. The limit of quantitation is 0.500 ng/ml and the limit of detection is 0.100 ng/ml with 10-μl sample injection. The recoveries of serum melatonin at three levels are approximately 70%. The intra-assay precision …

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Content Analysis In Mass Communication: Assessment And Reporting Of Intercoder Reliability, Matthew Lombard, Jennifer Snyder-Duch, Cheryl C. Bracken Oct 2002

Content Analysis In Mass Communication: Assessment And Reporting Of Intercoder Reliability, Matthew Lombard, Jennifer Snyder-Duch, Cheryl C. Bracken

Communication Faculty Publications

As a method specifically intended for the study of messages, content analysis is fundamental to mass communication research. Intercoder reliability, more specifically termed intercoder agreement, is a measure of the extent to which independent judges make the same coding decisions in evaluating the characteristics of messages, and is at the heart of this method. Yet there are few standard and accessible guidelines available regarding the appropriate procedures to use to assess and report intercoder reliability, or software tools to calculate it. As a result, it seems likely that there is little consistency in how this critical element of content analysis …

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2002 Vol. 51 No. 2, Cleveland-Marshall College Of Law Oct 2002

2002 Vol. 51 No. 2, Cleveland-Marshall College Of Law

2000s

No abstract provided.

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2002 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library Oct 2002

2002 Scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library

Scholars and Artists Bibliographies

This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti

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Training Radial Basis Neural Networks With The Extended Kalman Filter, Daniel J. Simon Oct 2002

Training Radial Basis Neural Networks With The Extended Kalman Filter, Daniel J. Simon

Electrical and Computer Engineering Faculty Publications

Radial basis function (RBF) neural networks provide attractive possibilities for solving signal processing and pattern classification problems. Several algorithms have been proposed for choosing the RBF prototypes and training the network. The selection of the RBF prototypes and the network weights can be viewed as a system identification problem. As such, this paper proposes the use of the extended Kalman filter for the learning procedure. After the user chooses how many prototypes to include in the network, the Kalman filter simultaneously solves for the prototype vectors and the weight matrix. A decoupled extended Kalman filter is then proposed in order …

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H2o–D2o Condensation In A Supersonic Nozzle, Christopher H. Heath, Kiril A. Streletzky, Barbara E. Wyslouzil, Judith Woelk, Reinhard Strey Oct 2002

H2o–D2o Condensation In A Supersonic Nozzle, Christopher H. Heath, Kiril A. Streletzky, Barbara E. Wyslouzil, Judith Woelk, Reinhard Strey

Physics Faculty Publications

We examined the condensation of H2O, D2O, and four intermediate mixtures (20, 40, 60, and 80 mol % D2O) in a supersonic nozzle. Because the physical and chemical properties of protonated and deuterated water are so similar, this system is ideal for studying the change in condensation behavior as a function of condensible composition. In our experiments dilute mixtures of condensible vapor in N2 are expanded from three different stagnation temperatures resulting in a broad range of onset temperatures (190–238 K) and pressures (27–787 kPa). For a fixed stagnation temperature, the partial pressure required to maintain the onset of condensation …

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An Intelligent System For Monitoring The Microgravity Environment Quality On-Board The International Space Station, Paul P. Lin, Kenol Jules Oct 2002

An Intelligent System For Monitoring The Microgravity Environment Quality On-Board The International Space Station, Paul P. Lin, Kenol Jules

Mechanical Engineering Faculty Publications

An intelligent system for monitoring the microgravity environment quality on-board the International Space Station is presented. The monitoring system uses a new approach combining Kohonen's self-organizing feature map, learning vector quantization, and a back propagation neural network to recognize and classify the known and unknown patterns. Finally, fuzzy logic is used to assess the level of confidence associated with each vibrating source activation detected by the system.

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A Peer-Reviewed Program For Senior Proficiencies, Cheryl Delgado, Bonnie Mack Oct 2002

A Peer-Reviewed Program For Senior Proficiencies, Cheryl Delgado, Bonnie Mack

Nursing Faculty Publications

Many nursing program require a review and retest of skilled procedures before graduation. In this way the nursing school takes steps to ensure a competent graduate practitioner. At Cleveland State University this testing is known as Senior Proficiencies, and is done in the spring semester of senior year. In the past, this has been a time-consuming task for nursing resource laboratory personnel and a stressful event for students. In their course evaluations many students expressed concern and dissatisfaction regarding their infrequently used skills and the stress associated with the retesting. The skills evaluation was a negative experience for both faculty …

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Sum Normal Optimization Of Fuzzy Membership Functions, Daniel J. Simon Aug 2002

Sum Normal Optimization Of Fuzzy Membership Functions, Daniel J. Simon

Electrical and Computer Engineering Faculty Publications

Given a fuzzy logic system, how can we determine the membership functions that will result in the best performance? If we constrain the membership functions to a certain shape (e.g., triangles or trapezoids) then each membership function can be parameterized by a small number of variables and the membership optimization problem can be reduced to a parameter optimization problem. This is the approach that is typically taken, but it results in membership functions that are not (in general) sum normal. That is, the resulting membership function values do not add up to one at each point in the domain. This …

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What Works In Economic Development Practice? An Evaluation Of Strategies & Tools, Ziona Austrian, Jill Norton Aug 2002

What Works In Economic Development Practice? An Evaluation Of Strategies & Tools, Ziona Austrian, Jill Norton

All Maxine Goodman Levin School of Urban Affairs Publications

What Works in Economic Development reviews evaluation literature relevant to economic development strategies. While economic development programs are difficult to evaluate, the literature reveals important information about the level of success achieved by various programs. It also demonstrates how positive results can be realized. A “what works” matrix follows the review of the evaluation studies. The matrix highlights the significant findings and key lessons that can be learned from this work.

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A Fundamental Model Of Cyclic Instabilities In Thermal Barrier Systems, Anette M. Karlsson, J. W. Hutchinson, A. G. Evans Aug 2002

A Fundamental Model Of Cyclic Instabilities In Thermal Barrier Systems, Anette M. Karlsson, J. W. Hutchinson, A. G. Evans

Mechanical Engineering Faculty Publications

Cyclic morphological instabilities in the thermally grown oxide (TGO) represent a source of failure in some thermal barrier systems. Observations and simulations have indicated that several factors interact to cause these instabilities to propagate: (i) thermal cycling; (ii) thermal expansion misfit; (iii) oxidation strain; (iv) yielding in the TGO and the bond coat; and (v) initial geometric imperfections. This study explores a fundamental understanding of the propagation phenomenon by devising a spherically symmetric model that can be solved analytically. The applicability of this model is addressed through comparison with simulations conducted for representative geometric imperfections and by analogy with the …

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Strategies And Tools In Economic Development Practice, Ziona Austrian, Jill Norton Aug 2002

Strategies And Tools In Economic Development Practice, Ziona Austrian, Jill Norton

All Maxine Goodman Levin School of Urban Affairs Publications

No abstract provided.

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Competent And Safe Practices: A Profile Of Disciplined Registered Nurses, Cheryl Delgado Aug 2002

Competent And Safe Practices: A Profile Of Disciplined Registered Nurses, Cheryl Delgado

Nursing Faculty Publications

Nurses are monitored by state boards of nursing to answer the public demand For safe and competent practitioners. Initial competency is determined by successful completion of the NCLEX examination, and continued competency in most states is assured through continuing education requirements. Thus established, the right to practice nursing may be revoked or restricted if an individual is found to be in violation of the state Nurse Practice Act or convicted of certain state and federal laws. Grounds for disciplinary actions include fraud, criminal act...., substance abuse, mental incompetence, unprofessional actions incompetent acts of care, negligence, and other willful misconduct such …

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Forensics And Case Studies In Civil Engineering Education: State Of The Art, Norbert J. Delatte, Kevin L. Rens Aug 2002

Forensics And Case Studies In Civil Engineering Education: State Of The Art, Norbert J. Delatte, Kevin L. Rens

Civil and Environmental Engineering Faculty Publications

This paper reviews the state of the art in the use of forensic engineering and failure case studies in civil engineering education. The study of engineering failures can offer students valuable insights into associated technical, ethical, and professional issues. Lessons learned from failures have substantially affected civil engineering practice. For the student, study of these cases can help place design and analysis procedures into historical context and reinforce the necessity of lifelong learning. Three approaches for bringing forensics and failure case studies into the civil engineering curriculum are discussed in this paper. These are stand-alone forensic engineering or failure case …

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New Media And The Circuit Of Cyber-Culture: Conceptualizing Napster, Bryan C. Taylor, Christof Demont-Heinrich, Kirsten Broadfoot, Jefferson Dodge, Guowei Jian Jun 2002

New Media And The Circuit Of Cyber-Culture: Conceptualizing Napster, Bryan C. Taylor, Christof Demont-Heinrich, Kirsten Broadfoot, Jefferson Dodge, Guowei Jian

Communication Faculty Publications

Media studies scholars have employed the "cultural circuit" model to analyze media in the context of capitalist political economy. This model identifies interrelated "moments' in which the meanings of cultural products are determined, negotiated, and subverted in interaction between producers and audiences. The turbulent evolution of new media, however, requires continuous reflection on the adequacy of conceptual tools. Analysis of recent controversy surrounding the Internet music-exchange service Napster indicates that the cultural circuit model must be modified to accommodate the emerging media of cyber-culture.

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Fabrication And Characterization Of Co1−Xfex Alloy Nanowires, Petru S. Fodor, Georgy M. Tsoi, Lowell E. Wenger May 2002

Fabrication And Characterization Of Co1−Xfex Alloy Nanowires, Petru S. Fodor, Georgy M. Tsoi, Lowell E. Wenger

Physics Faculty Publications

Co1−xFex alloy nanowires with 40 nm diam and x=0–1.0 were fabricated by electrodeposition in nanopores of alumina templates. The crystalline structure of the nanowires is concentration dependent and shows a transition from the cobalt hexagonal-closed-packed structure (hcp) to a face-centered-cubic structure (fcc) in the concentration range 0

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Investigation Of The Magnetic Properties In Strontium–Borate Vanadate Glasses, Manford Chinkhota, Petru S. Fodor, G. D. Khattak, Lowell E. Wenger May 2002

Investigation Of The Magnetic Properties In Strontium–Borate Vanadate Glasses, Manford Chinkhota, Petru S. Fodor, G. D. Khattak, Lowell E. Wenger

Physics Faculty Publications

To further elucidate the nature of the valence state of V ions in vanadate glasses,magnetic susceptibility measurements in the temperature range of 5 to 300 K have been performed on a series of vanadium–strontium–borate (V2O5+SrO+B2O3) oxide glasses with V2O5 concentrations greater than 50 mol %. The magnetic susceptibility for these oxide glasses is found to consist of a temperature-independentparamagnetic contribution arising from V2O5 and a Curie–Weiss temperature-dependent contribution associated with magnetic V4+ ions being present in concentrations between 2% and 10% of the total V concentration. The negative Curie–Weiss temperatures in the range of 0 to −2.8 K indicate a …

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Chemical Imaging Comes Of Age, John F. Turner Ii May 2002

Chemical Imaging Comes Of Age, John F. Turner Ii

Chemistry Faculty Publications

Sophisticated analysis techniques allow researchers to extract meaningful results from spectral imaging data.

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Old Age Support In Contemporary Urban China From Both Parents’ And Children’S Perspectives, Rongjun Sun May 2002

Old Age Support In Contemporary Urban China From Both Parents’ And Children’S Perspectives, Rongjun Sun

Sociology & Criminology Faculty Publications

This article explores the links between old age support and the characteristics of both parents and children drawing on survey data collected in Baoding, China, in 1994. Three specific forms of support are examined: monetary transfers, in-kind gifts, and help with daily activities. Hierarchical modeling is applied to the analysis from children’s perspective to control for the unobserved family heterogeneity. Results indicate that intergenerational support within families is currently the major source of old age security in Chinese society. Analyses from both parents’ and children’s perspectives support the corporate group/mutual aid model, which largely …

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A Model Study Of Displacement Instabilities During Cyclic Oxidation, Anette M. Karlsson, C. G. Levi, A. G. Evans Apr 2002

A Model Study Of Displacement Instabilities During Cyclic Oxidation, Anette M. Karlsson, C. G. Levi, A. G. Evans

Mechanical Engineering Faculty Publications

The shape changes that occur at imperfections on the surface of an alumina-forming alloy, subject to thermal cycling, have been simulated and measured. Observations have been made by emplacing a surface groove into a FeCrAlY material. Upon thermal cycling, large shape distortions have been observed: whereas, for comparable isothermal oxidation, the shape changes are minimal. The simulations predict similar responses. Upon cycling, upward displacements (pile-up) occur around the perimeter, accompanied by downward displacements at the center. Yet, minimal displacements arise upon isothermal oxidation. To realize cyclic displacements comparable in magnitude to those found experimentally, large values of the in-plane growth …

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The Northeast Ohio Model Schools Project: A Pathway To Scaling Up Reform In Mathematics And Science, Joanne E. Goodell, Francis S. Broadway, Linda Gojak Apr 2002

The Northeast Ohio Model Schools Project: A Pathway To Scaling Up Reform In Mathematics And Science, Joanne E. Goodell, Francis S. Broadway, Linda Gojak

Joanne E Goodell

The Northeast Ohio Model Schools Institute (NOMSI) provided professional development for school-based leadership teams in standards-based mathematics and science teaching practices and leadership skills. Leadership teams from six local school districts were recruited to attend a two-week summer institute in August 2001, which focused on national standards, principles of effective professional development, an understanding of the conditions necessary for change. One or two faculty from the College of Arts and Sciences at each university also participated in the summer institute. Teams prepared a professional development plan for their school or district and received a mini-grant to implement their plan. Coaches—experts …

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