Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Faculty Publications

Discipline
Institution
Keyword
Publication Year
File Type

Articles 13801 - 13830 of 14851

Full-Text Articles in Entire DC Network

Correlates To Performance On Field Tests Of Muscular Strength, Jeffrey A. Woods, Russell R. Pate, Maria L. Burgess Nov 1992

Correlates To Performance On Field Tests Of Muscular Strength, Jeffrey A. Woods, Russell R. Pate, Maria L. Burgess

Faculty Publications

Field tests of upper body muscular strength and endurance (UBMSE) are often administered to children, but little is known about the determinants of performance on these tests. Therefore the purpose of this investigation was to examine potential determinants of performance on several common field tests of UBMSE including pull-ups, flexed-arm hang, push-ups, and two types of modified pull-ups. Subjects were 56 girls, and 38 boys, ages 9 to 11 years. Potential determinants assessed were age, height, weight, gender, % fat, physical activity, and laboratory measures of muscular strength and endurance. Multiple regression analysis revealed that the laboratory measures of UBMSE …


When Blood Won't Clot, Debra Ann Mills Nov 1992

When Blood Won't Clot, Debra Ann Mills

Faculty Publications

While the history books refer to hemophilia as the disease of kings because it was once common among European royalty, the disorder now makes headlines for a completely different reason. It is estimated that at least 70% of the hemophiliacs whoo received blood products between 1978 and 1985 have been infected with HIV.


Unobserved Ability, Efficiency Wages, And Interindustry Wage Differentials, Mckinley L. Blackburn, David Neumark Nov 1992

Unobserved Ability, Efficiency Wages, And Interindustry Wage Differentials, Mckinley L. Blackburn, David Neumark

Faculty Publications

One competitive-market explanation of interindustry wage differentials that is not challenged by the persistence of these differentials is that they are due to differences across workers in unobserved ability or quality. In contrast, this paper explores the unobserved ability hypothesis by using test scores as error-ridden indicators of ability, and family background variables as instruments.This approach avoids two potential problems with using first-difference methods to remove omitted-ability bias from wage equation estimates of industry effects the exacerbation of measurement error from misclassification of industry, and selectivity with respect to industry changes. However, this approach may introduce other problems, for two …


Linear Theory Of Non-Neutral Plasma Equilibrium In A Tilted Magnetic Field, Ross L. Spencer, Grant W. Hart Nov 1992

Linear Theory Of Non-Neutral Plasma Equilibrium In A Tilted Magnetic Field, Ross L. Spencer, Grant W. Hart

Faculty Publications

A linear perturbation expansion has been found that allows the rapid and accurate calculation of the response of a non-neutral plasma to a tilted magnetic field. The results of the calculation have been found to agree with previous three-dimensional equilibrium calculations, and also to agree with Keinigs' [Phys. Fluids 24, 860 (1981)] calculation of zero-frequency resonances caused by magnetic field errors. This expansion also allows the perturbed velocity to be calculated. It is speculated that this perturbed flow may be related to the enhanced radial transport in a non-neutral plasma with a tilted magnetic field.


Use Of Raman Spectroscopy In Characterizing Soft X-Ray Multilayers: Tools In Understanding Structure And Interfaces, Ming Cai, Qi Wang, David D. Allred, Larry V. Knight, Dorian M. Hatch, A. Reyes-Mena, Guizhong Zhang Oct 1992

Use Of Raman Spectroscopy In Characterizing Soft X-Ray Multilayers: Tools In Understanding Structure And Interfaces, Ming Cai, Qi Wang, David D. Allred, Larry V. Knight, Dorian M. Hatch, A. Reyes-Mena, Guizhong Zhang

Faculty Publications

Our group is studying the structure and interfaces of soft x-ray multilayers by various techniques including x-ray diffraction and Raman spectroscopy. Raman spectroscopy is particularly useful since it is sensitive to the identity of individual bonds and thus can potentially characterize the abruptness of interfaces in multilayers. Blocking interfacial mixing is very important in achieving and maintaining high reflectivity. We report our studies of the as-deposited and postannealed structure of Mo/Si and W/C multilayers. The Mo/Si system is probably the most widely studied multilayer currently because of its potential applications for soft x-ray projection lithography for the range of 13 …


Dna Diversity Among Clinical Isolates Of Helicobacter Pylori Detected By Pcr-Based Rapd Fingerprinting, Natalia Akopyanz, Nickolai O. Bukanov, T. Ulf Westblom, Stephen Kresovich, Douglas E. Berg Oct 1992

Dna Diversity Among Clinical Isolates Of Helicobacter Pylori Detected By Pcr-Based Rapd Fingerprinting, Natalia Akopyanz, Nickolai O. Bukanov, T. Ulf Westblom, Stephen Kresovich, Douglas E. Berg

Faculty Publications

The RAPD (or AP-PCR) DNA fingerprinting method was used to distinguish among clinical isolates of Helicobacter pylori, a bacterium whose long term carriage is associated with gastritis, peptic ulcers and gastric carcinomas. This method uses arbitrarily chosen oligonucleotides to prime DNA sythesis from genomic sites to which they are fortuitously matched, or almost matched. Most 10-nt primers with > 60% G + C yielded strain-specific arrays of up to 15 prominent fragments, as did most longer ( > 17-nt) primers, whereas most 10-nt primers with 50% G +C did not. Each of 64 independent H.pylori isolates, 60 of which were from …


Equitable Estoppel Against The Government - The Missouri Experience: Time To Rethink The Concept, Kenneth D. Dean Oct 1992

Equitable Estoppel Against The Government - The Missouri Experience: Time To Rethink The Concept, Kenneth D. Dean

Faculty Publications

The purpose of this article is to examine the Missouri cases to determine if there are patterns which provide guidance in understanding what constitutes “exceptional” circumstances or “manifest injustice,” to determine if there is a coherent theory underlying the application of the *68 doctrine, and, finally, to propose modifications to the traditional approach.


Some Evidence On The Empirical Significance Of Credit Rationing, Allen N. Berger, Gregory F. Udell Oct 1992

Some Evidence On The Empirical Significance Of Credit Rationing, Allen N. Berger, Gregory F. Udell

Faculty Publications

This paper examines the credit rationing debate using detailed contract information on over one million commercial bank loans from 1977 to 1988. While commercial loan rates are "Sticky," consistent with rationing, this stickiness varies with loan contract terms in ways that are not predicted by equilibrium credit rationing theory. In addition, the proportion of new loans issued under commitment does not increase significantly when credit markets are tight, despite the fact that borrowers without commitments can be rationed whereas commitment borrowers are contractually insulated from rationing. Overall, the data suggest that equilibrium rationing is not a significant macroeconomic phenomenon.


Quincentennial Scholarship And The Public: Who Controls The Columbian Legacy?, Michael C. Scardaville Oct 1992

Quincentennial Scholarship And The Public: Who Controls The Columbian Legacy?, Michael C. Scardaville

Faculty Publications

A review of The Conquest of Paradise: Christopher Columbus and the Columbian Legacy, by Kirkpatrick Sale, Columbus: The Great Adventure, His Life, His Times, and His Voyage, by Paolo Emilio Taviani, The Mysterious History of Columbus: An Exploration of the Man, the Myth, the Legacy, by John Noble Wilford, The Worlds of Christopher Columbus, by William D. Phillips, Jr. and Carla Rahn Phillips, and Columbus, by Felipe Fernande-Armesto.


Ethnic Identity And Constitutional Design For Africa, Alemante G. Selassie Oct 1992

Ethnic Identity And Constitutional Design For Africa, Alemante G. Selassie

Faculty Publications

No abstract provided.


Adaptive Boundary Detection Using “Live-Wire” Two-Dimensional Dynamic Programming, William A. Barrett, Bryan S. Morse, Eric N. Mortensen, Jayaram Udupa Oct 1992

Adaptive Boundary Detection Using “Live-Wire” Two-Dimensional Dynamic Programming, William A. Barrett, Bryan S. Morse, Eric N. Mortensen, Jayaram Udupa

Faculty Publications

An adaptive boundary detection algorithm that uses two-dimensional dynamic programming is presented. The algorithm is less constrained than previous one-dimensional dynamic programming algorithms and allows the user to interactively determine the mathematically optimal boundary between a user-selected seed point and any other dynamically selected "free” point in the image. Interactive movement of the free point by the cursor causes the boundary to behave like a “live wire” as it adapts to the new minimum cost path between the seed point and the currently selected free point. The algorithm can also be adapted or customized to learn boundary-defining features for a …


Linkages Among Preschoolers' Playground Behavior, Outcome Expectations, And Parental Disciplinary Strategies, Craig H. Hart, Michele Dewolf, Diane C. Burts Oct 1992

Linkages Among Preschoolers' Playground Behavior, Outcome Expectations, And Parental Disciplinary Strategies, Craig H. Hart, Michele Dewolf, Diane C. Burts

Faculty Publications

To explore relationships among parent's self-reported disciplinary strategies, preschoolers' outcome expectations, and playground behavior. 136 mothers of preschool age children (age range 39-71 months) participated in home disciplinary style interviews. Measures of preschoolers' outcome expectations and observations of children's' prosocial, antisocial/disruptive, and nonsocial/withdrawn playground behavior were also obtained. results indicated that power-assertive mothers had preschoolers who engaged in more antisocial/disruptive behavior and who expected successful instruments outcomes for hostile methods of resolving peer conflict. Preschoolers with such outcome expectations also participated in more antisocial playground behavior.


Nuclear Dna Content Variation Within The Rosaceae, E. E. Dickson, K. Arumuganathan, Stephen Kresovich, J. J. Doyle Sep 1992

Nuclear Dna Content Variation Within The Rosaceae, E. E. Dickson, K. Arumuganathan, Stephen Kresovich, J. J. Doyle

Faculty Publications

Nuclear DNA content has been estimated using flow cytometry for 17 species and eight cultivars of Malus and for 44 species of 29 other genera within the Rosaceae. Compared to other angiosperms, diploid genome sizes vary little within the family Rosaceae and within the genus Malus. C-values of genera within the subfamilies Spiraeoideae and Rosoideae are among the smallest of flowering plants thus far reported. In general, the Maloideae have the largest diploid genomes of the family, consistent with their higher chromosome numbers and presumed polyploid origin.


Librarians: A Thinking And Learning Styles Portrait, David Squires, Helen K. Hoopes, Gary P. Gillum Sep 1992

Librarians: A Thinking And Learning Styles Portrait, David Squires, Helen K. Hoopes, Gary P. Gillum

Faculty Publications

Our research reflects the general tendencies and the challenges that develop when diverse thinking styles exist within any large organization, including libraries. After compiling and analyzing the various instruments used in this study, we concluded that the professional librarians in this sample tended to be verbally oriented and more satisfied with libraries than were the visual thinkers.


Species Of The Cretaceous Tree Fern Tempskya From Utah, William D. Tidwell, Naomi Hebbert Sep 1992

Species Of The Cretaceous Tree Fern Tempskya From Utah, William D. Tidwell, Naomi Hebbert

Faculty Publications

Nine species of the permineralized stems of Tempskya were investigated from the Lower Cretaceous Cedar Mountain and Burro Canyon Formations, and the lower Upper Cretaceous Dakota Formation in central and southeastern Utah. Tempskya jonesii, T. stichkae, and T. readii are new and are differentiated on the basis of the radial orientation of their dorsiventral stems, their internodal lengths, the lack of sclerenchyma in the inner cortex of T. jonesii, the three nearly continuous zones of sclerenchyma in the inner cortex off T. stichkae, and the completely sclerotic inner cortex of T. readii. Specimens of T. jonesii and T. minor were …


Approximation By Interval Bezier Curves, Thomas W. Sederberg, Rida T. Farouki Sep 1992

Approximation By Interval Bezier Curves, Thomas W. Sederberg, Rida T. Farouki

Faculty Publications

The interval Bezier curve, which, unlike other curve and surface approximation schemes, can transfer a complete description of approximation errors between diverse CAD/CAM systems that impose fundamentally incompatible constraints on their canonical representation schemes, is described. Interval arithmetic, which offers an essentially infallible way to monitor error propagation in numerical algorithms that use floating-point arithmetic is reviewed. Affine maps, the computations of which are key operations in the de Casteljau subdivision and degree-elevation algorithms for Bezier curves, the floating-point error propagation in such computations, approximation by interval polynomials, and approximation by interval Bezier curves are discussed.


Heterogeneity Of Intergranular Damage In Copper Crept In Plane-Strain Tension, Brent L. Adams, David P. Field Sep 1992

Heterogeneity Of Intergranular Damage In Copper Crept In Plane-Strain Tension, Brent L. Adams, David P. Field

Faculty Publications

The authors wish to acknowledge support of this work by the Office of Basic Energy Sciences of the U. S. Department of Energy. An interface damage function (IDF), which statistically describes the area fraction of interface damage as a function of up to eight parameters defining crystallite interfaces, was determined for commercial purity copper specimens crept in plane strain tension. The IDF was determined from stereological parameters measured on plane sections cut through damaged specimens. The eight-dimensional space of the function was investigated by analyzing two-dimensional projections of the complete domain. Certain special interfaces were observed to damage preferentially. A …


Nephite Uses And Interpretations Of Zenos, Noel B. Reynolds Jul 1992

Nephite Uses And Interpretations Of Zenos, Noel B. Reynolds

Faculty Publications

The allegory of the olive tree attributed to the ancient prophet Zenos and copied from the plates of brass into the small plates by Jacob was a source used by several Book of Mormon prophets. Lehi, Nephi, Jacob, and Alma seemed to be relying on the allegory at several points in the elaboration of their own visions, prophecies, and teachings. This paper provides a systematic documentation of this phenomenon, including passages that have not previously been linked to Zenos. It also demonstrates how the interpretations of the allegory by the earliest Nephite prophets advanced distinctive concepts and language that also …


The Upc And The New Durable Powers, David M. English Jul 1992

The Upc And The New Durable Powers, David M. English

Faculty Publications

This article thoroughly explores the escalation of interest in durable powers of attorney, with particular emphasis on health care powers and advance directives. The author focuses on durable power legislation influenced by the Unifomi Probate Code and health care power and advance directive statutes enacted in response to recent decisions dealing with the withholding or withdrawal of life-sustaining treatment.


A Descriptive Analysis And Academic Genealogy Of Major Contributors To Jtpe In The 1980s, Murrary F. Mitchell Jul 1992

A Descriptive Analysis And Academic Genealogy Of Major Contributors To Jtpe In The 1980s, Murrary F. Mitchell

Faculty Publications

Information about whose knowledge is accepted as important is valuable in understanding how a profession evolves. The term elders describes the individuals who control invisible networks of prestige and who determine what information is accepted for publication in professional journals. These published works stand as the foundation for the knowledge base of a discipline. The purpose of this article was to identify the elders in physical education teacher education (PETE) and to trace their academic genealogy. Elders were defined as major contributors to the Journal of Teaching in Physical Education from 1981 through 1989. The articles published by these subjects …


Statement On Exercise: Benefits And Recommendations For Physical Activity Programs For All Americans - A Statement For Health Professionals By The Committee On Exercise And Cardiac Rehabilitation Of The Council On Clinical Cardiology, American Heart Association, Gerald F. Fletcher, Steven N. Blair, James Blumenthal, Carl Caspersen, Bernard Chaitman, Stephen Epstein, Harold Falls, Erika S. Sivarajan Froelicher, Victor F. Froelicher, Ileana L. Piña Jul 1992

Statement On Exercise: Benefits And Recommendations For Physical Activity Programs For All Americans - A Statement For Health Professionals By The Committee On Exercise And Cardiac Rehabilitation Of The Council On Clinical Cardiology, American Heart Association, Gerald F. Fletcher, Steven N. Blair, James Blumenthal, Carl Caspersen, Bernard Chaitman, Stephen Epstein, Harold Falls, Erika S. Sivarajan Froelicher, Victor F. Froelicher, Ileana L. Piña

Faculty Publications

No abstract provided.


Experimental Measurement Of Rov Tether Tension, Tim W. Mclain, S M. Rock Jun 1992

Experimental Measurement Of Rov Tether Tension, Tim W. Mclain, S M. Rock

Faculty Publications

In the undersea operation of a tethered ROV system, the pilot's ability to control precisely the ROV is often limited by disturbance forces generated by drag due to currents that act either directly on the ROV or indirectly on the ROV through the tether. The objective of this research, which was conducted at the Monterey Bay Aquarium Research Institute (MBARI), was to characterize the magnitude and dynamics of tether forces by measuring them during operation. To achieve this, a tether tension sensor and data logging system were developed. This system was used to measure the forces in the tether of …


Ideology, Status, And The Differential Success Of Direct Parties Before The Supreme Court, Reginald S. Sheehan, William Mishler, Donald R. Songer Jun 1992

Ideology, Status, And The Differential Success Of Direct Parties Before The Supreme Court, Reginald S. Sheehan, William Mishler, Donald R. Songer

Faculty Publications

A substantial literature on lower federal courts and state courts suggests that the "haves" usually come out ahead in litigation because they possess superior resources for it and they reap advantages from their repeat player status. We investigate the success of 10 categories of litigants before the Warren, Burger, and Rehnquist Courts to determine whether the resources or experience of litigants has effects on Supreme Court outcomes paralleling those found in the courts below. While different categories of litigants are found to have very different rates of success, those differences do not consistently favor litigants with greater resources. A time …


Interface Cavitation Damage In Polycrystalline Copper, Brent L. Adams, David P. Field Jun 1992

Interface Cavitation Damage In Polycrystalline Copper, Brent L. Adams, David P. Field

Faculty Publications

The authors acknowledge the support of the Office of Basic Energy Sciences of the United States Department of Energy. Determination of an interface damage function (IDF) from a stereological procedure similar to that presented by Hilliard is described. The mathematical and experimental simplicity of the method is utilized in measuring an IDF for polycrystalline copper crept at 0.6T sub m under uniaxial tension. Whereas previous work focused on a five parameter description of the local state of a grain boundary, the domain of the IDF is increased to eight degrees of freedom in the present study to include the complete …


Sound Symbolic Involvement, Janis B. Nuckolls Jun 1992

Sound Symbolic Involvement, Janis B. Nuckolls

Faculty Publications

This article examines an iconic form of communication, sound symbolism, which has been associated with oral cultures and implicated in paradigms of primitive mentality, I argue that Lowland Ecuadorean Quechua speakers use sound symbolic iconicity to create interlocutionary involvement. A speaker's performative foregrounding of a sound symbolic form simuhtes the salient qualities of an action, event, or process, and thereby invites a listener to project into an experience. This projected involvement, in turn, points the listener to deeper kinds of imaginative, intellectual, and emotional engagement with the narrative. The argument is based on an analysis of the formal and semantic …


Scholarly Behaviors Of Physical Education Methods Teacher Educators In Ohio, Murrary F. Mitchell Apr 1992

Scholarly Behaviors Of Physical Education Methods Teacher Educators In Ohio, Murrary F. Mitchell

Faculty Publications

This study focused on the behavior of a proportional, stratified random sample of 40 physical education methods teacher educators (PEMTEs) in the state of Ohio, or more specifically, on the professional implications of their scholarly behaviors. The focal questions addressed were (a) how do PEMTEs meet their responsibility to stay current in their professional areas, and (b) what are the professional implications of these efforts? Four specific behaviors were examined as evidence of scholarly behaviors: (a) reading professional journals, (b) writing for publication, (c) attendance at professional conferences, and (d) active involvement in research. Findings were then contrasted to findings …


The Fault Pit, David G. Owen Apr 1992

The Fault Pit, David G. Owen

Faculty Publications

No abstract provided.


Moral Rules And Exceptions, Miroslav Kis Apr 1992

Moral Rules And Exceptions, Miroslav Kis

Faculty Publications

No abstract provided.


Note On The Number Dependence Of Nonequilibrium Molecular Dynamics Simulations Of The Viscosity Of Structured Molecules, Richard L. Rowley, James F. Ely Mar 1992

Note On The Number Dependence Of Nonequilibrium Molecular Dynamics Simulations Of The Viscosity Of Structured Molecules, Richard L. Rowley, James F. Ely

Faculty Publications

Nonequilibrium molecular dynamics simulations have been performed for a system of 512 four-site models representing n-butane molecules. The results are compared to simulations previously reported for 125 molecules to check a recently reported number dependence in such simulations. A small system size dependence was observed at low shear rates, but the rheological behavior is not affected. Considerably greater certainty is obtained using larger systems.


Pressure Dependence Of The Thermal Conductivity Of Pyrophyllite To 40 Kbar, Wei Chen, Daniel L. Decker Mar 1992

Pressure Dependence Of The Thermal Conductivity Of Pyrophyllite To 40 Kbar, Wei Chen, Daniel L. Decker

Faculty Publications

A mathematical model for calculating the temperature distribution as a function of power delivered to a line source and the thermal conductivity of the surrounding medium in the pressure cell of a cubic-anvil press was derived. The model will handle anisotropic thermal conductivities. A simple sample assembly consisting of a line source and two or three thermocouple junctions is described. A comparison of measured to calculated temperatures yields the thermal conductivity. Thermal conductivity measurements were made on natural pyrophyllite and baked pyrophyllite to 40 kbar. For the natural pyrophyllite the thermal conductivity parallel to the bedding plane at room temperature …