Digital Commons Network^™

Comparison Of A Dietary Record Using Reported Portion Size Versus Standard Portion Size For Assessing Nutrient Intake, Desiree C. Welten, Ruth A. Carpenter, R. Sue Mcpherson, Suzanne Brodney, Deirdre Douglass, James B. Kampert, Steven N. Blair

Faculty Publications

Objective: Because the percentage of missing portion sizes was large in the Aerobics Center Longitudinal Study (ACLS), careful consideration of the accuracy of standard portion sizes was necessary. The purpose of the present study was to investigate the consequences of using standard portion size instead of reported portion sizes on subjects' nutrient intake.

Methods: In 2307 men and 411 women, nutrient intake calculated from a 3-day dietary record using reported portion sizes was compared with nutrient intake calculated from the same record in which standard portion sizes were substituted for reported portion sizes.

Results: The standard portion sizes provided significantly …

Accumulation Hole Layer In P-Gan/Algan Heterostructures, M. S. Shur, A. D. Bykhovski, R. Gaska, J. W. Yang, Grigory Simin, M. A. Khan

Faculty Publications

We present the results on piezoelectric and pyroelectricdoping in AlGaN-on-GaN and GaN-on-AlGaN heterostructures and demonstrate p-GaN/AlGaN structures with accumulation hole layer. Our results indicate that polarization charge can induce up to 5×10¹³ cm⁻² holes at the AlGaN/GaN heterointerfaces. We show that the transition from three-dimensional (3D) to two-dimensional (2D) hole gas can be only achieved for hole sheet densities on the order of 10¹³ cm⁻² or higher. At lower densities, only 3D-hole accumulation layer may exist. These results suggest that a piezoelectrically induced 2D-hole gas can be used for the reduction of the base spreading resistance …

Low Fasting Plasma Glucose Level As A Predictor Of Cardiovascular Disease And All-Cause Mortality, Ming Wei, Larry W. Gibbons, Tedd L. Mitchell, James B. Kampert, Michael P. Stern, Steven N. Blair

Faculty Publications

Background - Although medical textbooks usually classify fasting plasma glucose <70 or 80 mg/dL (<3.89 or 4.44 mmol/L) as abnormal, the prognosis for patients with low fasting plasma glucose is unclear.

Methods and Results - We conducted prospective cohort studies among 40,069 men and women to investigate the association between fasting plasma glucose levels and cardiovascular disease and all-cause mortality. We documented a U-shaped relation between fasting plasma glucose and mortality. In addition to diabetes and impaired fasting glucose levels, low fasting plasma glucose levels were also associated with high morality. After multivariate adjustment for age, sex, study population, ethnicity, current smoking status, high blood pressure, total cholesterol, body mass index, triglycerides, history of cardiovascular disease and cancer, and a family …

Annotated Bibliography Of Research In The Teaching Of English, Deborah Brown, Wayne Martino, Gert Rijlaarsdam, Anne D'Antonio Stinson, Melissa E. Whiting

Faculty Publications

Twice a year, in the May ann November issues, RTE publishes a selected bibliography of recent research in the teaching of English. Most of the studies appeared during the six-mouth period preceding the complication of the bibliography (July through December; 1999, for the present bibliography), but some studies that appeared earlier are occasionally included. The listing is selective; we make no attempt to include all research and research-related articles that appeared in the period under review. Comments on the bibliography and suggestions about items for inclusion may be directed to the bibliography editors We encourage you to send your suggestions …

Using Implicit Feedback For User Modeling In Internet And Intranet Searching, Jinmook Kim, Douglas W. Oard, Kathleen Romanik

Faculty Publications

Powerize Server 1.0, developed by Powerize.com, is a content-based information filtering and retrieval system that presently uses a manually constructed user model known as a search profile. User modeling captures a user’s information needs. A user model can be constructed explicitly by the user or implicitly by exploiting feedback from the user about which documents are relevant. Implicit feedback can be inferred from user behavior without any additional work on the part of the user. The study reported in this paper investigates a way of implementing the implicit feedback technique of user modeling for the Powerize Server 1.0. Previous studies …

Review Of The Software "Dans Un Quartier De Paris", Lara Lomicka, Hélène Gresso

Faculty Publications

No abstract provided.

3d Outside Cell Interference Factor For An Air-Ground Cdma ‘Cellular’ System, David W. Matolak

Faculty Publications

We compute the outside-cell interference factor of a code-division multiple-access (CDMA) system for a three-dimensional (3-D) air-to-ground (AG) "cellular-like" network consisting of a set of uniformly distributed ground base stations and airborne mobile users. The CDMA capacity is roughly inversely proportional to the outside-cell interference factor. It is shown that for the nearly free-space propagation environment of these systems, the outside-cell interference factor can be larger than that for terrestrial propagation models (as expected) and depends approximately logarithmically upon both the cell height and cell radius.

Bounding Interval Rational Bézier Curves With Interval Polynomial Bézier Curves, Thomas W. Sederberg, Falai Chen, Wenping Lou

Faculty Publications

In this paper, we put forward and study the problem of bounding an interval rational Bézier curve with an interval polynomial Bézier curve. We propose three different methods—Hybrid Method, Perturbation Method and Linear Programming Method to solve this problem. Examples are illustrated to compare the three different methods. The empirical results show that the Perturbation Method and the Linear Programming Method produce much tighter bounds than the Hybrid Method, though they are computationally several times more expensive.

An Optimal-Order Error Estimate For An Ellam Scheme For Two-Dimensional Linear Advection-Diffusion Equations, Hong Wang

Faculty Publications

An Eulerian-Lagrangian localized adjoint method (ELLAM) is presented and an- alyzed for two-dimensional linear advection-diffusion partial differential equations (PDEs). An optimal-order error estimate in the L^2 norm and a superconvergence estimate in a discrete H^1 norm are derived. Numerical experiments are performed to verify the theoretical estimates.

Fear Of Law: Thoughts On Fear Of Judging And The State Of The Federal Sentencing Guidelines (Sentencing Symposium), Frank O. Bowman Iii

Faculty Publications

To understand Fear of Judging and the debate over the Federal Sentencing Guidelines requires some familiarity with the sentencing reform movement that led to the adoption of the Federal Sentencing Guidelines in 1987, as well as at least a rudimentary grasp of the structure of the Guidelines themselves. For those readers who require an introduction to both subjects, the next section of this Article attempts to provide one. Those already familiar with the Guidelines and their history can skip to Section III, where the discussion of Fear of Judging begins in earnest.

Settlement Patterns And The Origins Of African Jamaican Society: Seville Plantation, St. Ann's Bay, Jamaica, Douglas V. Armstrong, Kenneth G. Kelly

Faculty Publications

Archaeological and historical research at Seville Plantation, Jamaica, are used to explain changes in settlement patterns within the estate's African Jamaican community between 1670 and the late nineteenth century. Sugar plantations, such as Seville, are marked by well-defined spatial order based upon economic and power relations that was imposed upon enslaved communities by planters and managers. Archaeological evidence is used to explore how enslaved Africans modified this imposed order and redefined boundaries in ways that correspond with the development of a distinct African Jamaican society. The rigidly defined linear housing arrangements initially established by the planter, and their relations to …

Nursing Home Residents And The New California Health Care Decisions Law, David M. English, Rebecca C. Morgan

Faculty Publications

This article explores issues involving advance directives made by nursing home residents, both prior to and during their stay in a facility, including the frequency of making directives, the reasons why residents fail to make directives, and the reasons why facilities often fail to honor them. Specifically, this article examines these issues in light of the 1999 California Health Care Decisions Law, effective July 1, 2000, and focuses on how this new statute can be used to empower nursing home residents, and adults more generally, to take control of decisions regarding their own health care.

Getting The Faith: Why Business Lawyers And Executives Believe In Mediation, John M. Lande

Faculty Publications

Do you believe in mediation? That may seem like an odd question. Normally one thinks of ‘believing in‘ (or having faith in) things like magic, God, or the market. These are typically things that are beyond verifiable human knowledge (such as magic and God) and/or deeply held values (such as whether the market is a better mechanism than government for managing the flow of goods and services). At first blush, one might not think that mediation would fall into either category. There have been numerous empirical studies about many different aspects of mediation, so one can confidently say, for example, …

The Father's Witness: Patriarchal Images Of Boys, David Lee Miller

Faculty Publications

No abstract provided.

Addressing Domestic Violence In Immigrant Communities, Deborah M. Weissman

Faculty Publications

No abstract provided.

Managing Phantom Pain With Drugs, Shelly Jensen Reed

Faculty Publications

Reed offers advice on how to manage and prevent pain that exists in a limb that doesn't. More than 70 percent of amputees suffer from stump and phantom limb pain years after amputation.

Looking At The End From The Beginning: Studying Eschatological Concepts In The Pentateuch, Gerald Klingbeil

Faculty Publications

No abstract provided.

Fuel Optimization For Constrained Rotation Of Satellite Formations, Timothy Mclain, Randal W. Beard, Fred Y. Hadaegh

Faculty Publications

This paper considers the problem of reorienting a constellation of spacecraft such that the fuel distributed across the constellation is both conserved and expended uniformly. Results are derived for constellations with an arbitrary number of spacecraft, assuming that the constellation is in free space, that the spacecraft mass is time invariant, and that the thrusters can produce thrust in any direction. An open-loop control algorithm is derived by minimizing a cost function that trades off total fuel minimization and fuel equalization. The associated optimization problem is shown to be amenable to standard algorithms. Simulation results using a four-spacecraft constellation are …

Average Energy Flow Of Optical Pulses In Dispersive Media, Scott Glasgow, Michael Ware, Justin Peatross

Faculty Publications

The arrival time of a light pulse at a point in space is defined using a time expectation integral over the Poynting vector. The delay between pulse arrival times at two distinct points is shown to consist of two parts: a spectral superposition of group delays (inverse of group velocity) and a delay due to spectral reshaping via absorption or amplification. The result provides a context wherein group velocity is always meaningful even for broad band pulses and when the group velocity is superluminal or negative. The result imposes luminality on sharply defined pulses.

The Character Of Ash Deposits And The Thermal Performance Of Furnaces, T. F. Wall, S. P. Bhattacharya, Larry Lin Baxter 8507091, G. Richards, J. N. Harb

Faculty Publications

The character of fireside ash deposits depend on the processes by which deposits are formed and subsequent reactions within the deposit and with furnace gases. The properties influencing furnace heat transfer, absorptivity for radiative transfer and thermal conductivity for conductive transfer are shown from many measurements to depend on this character. Illustrative trends in these properties as deposits mature and grow are presented together with their effect on furnace exit temperature and efficiency. The reflective character of initial deposits from particular coals is then considered with predictions and measurements of the spectral character of such deposits, during the first three …

Learning Quantum Operators, Dan A. Ventura

Faculty Publications

Consider the system Fx = w where F is unknown. We examine the possibility of learning the operator F inductively, drawing analogies with ideas from classical computational learning.

Alternate Path Routing For Multicast, Daniel Zappala

Faculty Publications

Alternate path routing has been well-explored in telecommunication networks as a means of decreasing the call blocking rate and increasing network utility. However, aside from some work applying these concepts to unicast flows, alternate path routing has received little attention in the Internet community. We describe and evaluate an architecture for alternate path routing for multicast flows. For path installation, we design a receiver-oriented alternate path protocol and prove that it reconfigures multicast trees without introducing loops. For path computation, we propose a scalable local search heuristic that allows receivers to find alternate paths using only partial network information. We …

Managing Temporal Data In A Comprehensive Modeling Environment, Norman L. Jones, E. James Nelson, Colby T. Manwaring

Faculty Publications

Numerous graphical pre- and post-processors have been developed for numerical modeling. Many of these systems support numerical models that can be used for both steady state and transient simulations. Dealing with transient data can be particularly difficult in such an environment due to the differing time scales and units associated with transient field data and boundary conditions. A data model and a set of functions are presented in this paper as a simple, yet powerful strategy for managing temporal data in a comprehensive modeling environment. The strategy makes it possible to seamlessly integrate multiple types of transient data and convert …

Strategic Auditing In A Political Hierarchy: An Informational Model Of The Supreme Court's Certiorari Decisions, Charles M. Cameron, Jeffrey A. Segal, Donald Songer

Faculty Publications

We examine how the Supreme Court uses signals and indices from lower courts to determine which cases to review. In our game theoretic model, a higher court cues from publicly observable case facts, the known preferences of a lower court and its derision. The lower court attempts to enforce its own preferences, exploiting ambiguity in cases' fact patterns. In equilibrium, a conservative higher court declines to review conservative decisions from lower courts regardless of the facts of die case or the relative ideology of the judges. But a conservative higher court probabilistically reviews liberal decisions, with the "audit rate" tied …

Modeling The Statistical Time And Angle Of Arrival Characteristics Of An Indoor Multipath Channel, Michael A. Jensen, Brian D. Jeffs, A. Lee Swindlehurst, Quentin H. Spencer

Faculty Publications

Most previously proposed statistical models for the indoor multipath channel include only time of arrival characteristics. However, in order to use statistical models in simulating or analyzing the performance of systems employing spatial diversity combining, information about angle of arrival statistics is also required. Ideally, it would be desirable to characterize the full spare-time nature of the channel. In this paper, a system is described that was used to collect simultaneous time and angle of arrival data at 7 GHz. Data processing methods are outlined, and results obtained from data taken in two different buildings are presented. Based on the …

Designing Human-Centered Automation: Tradeoffs In Collision Avoidance System Design, Michael A. Goodrich, Erwin R. Boer

Faculty Publications

Technological advances have made plausible the design of automated systems that share responsibility with a human operator. The decision to use automation to assist or replace a human operator in safety-critical tasks must account for not only the technological capabilities of the sensor and control subsystems, but also the autonomy, capabilities, and preferences of the human operator. By their nature, such human-centered automation problems have multiple attributes: an attribute reflecting human goals and capabilities, and an attribute reflecting automation goals and capabilities. Although good theories exist that describe portions of human behavior generation, in the absence of a general theory …

Pulsed Ultrasound Enhances The Killing Of Escherichia Coli Biofilms By Aminoglycoside Antibiotics In Vivo, Andrea M. Rediske, Beverly L. Roeder, Jared L. Nelson, Rachel L. Robison, Bruce Schaaije, Richard A. Robison, William G. Pitt

Faculty Publications

Escherichia coli biofilms on two polyethylene disks were implanted subcutaneously into rabbits receiving systemic gentamicin. Ultrasound was applied for 24 h to one disk. Both disks were removed, and viable bacteria were counted. Pulsed ultrasound significantly reduced bacterial viability below that of nontreated biofilms without damage to the skin.

Lattice And Energy Band Engineering In Alingan/Ga Heterostructures, M. Asif Khan, J. W. Yang, Grigory Simin, R. Gaska, M. S. Shur, Hans-Conrad Zur Loye, G. Tamulaitis, A. Zukauskas, David J. Smith, D. Chandrasekhar, R. Bicknell-Tassius

Faculty Publications

We report on structural, optical, and electrical properties of Al_xIn_yGa_1−x−yNGaNheterostructures grown on sapphire and 6H–SiC substrates. Our results demonstrate that incorporation of In reduces the lattice mismatch, Δa, between AlInGaN and GaN, and that an In to Al ratio of close to 1:5 results in nearly strain-free heterostructures. The observed reduction in band gap,ΔE_g, determined from photoluminescence measurements, is more than 1.5 times higher than estimated from the linear dependencies of Δa and ΔE_g on the In molar fraction. The incorporation of In and resulting changes in the built-in strain in …

Forval For Windows: A Computer Program For Forestry Investment Analysis, Thomas J. Straka, Steven H. Bullard

Faculty Publications

FORVAL for Windows is computer software designed to help evaluate timberland and forestry investments from a financial standpoint. It is free and user-friendlyso easy to use that a manual is not required (a Windows Help file is available as part of the program). While professional foresters will find it a valuable tool, it will be equally useful to private forest landowners.

Electronic Structure Of Cu1-Xnixrh2s4 And Curh2se4: Band-Structure Calculations, X-Ray Photoemission, And Fluorescence Measurements, Gus L. W. Hart, W. E. Pickett, E. Z. Kurmaev, M. Neumann, D. Hartmann, A. Moewes, D. L. Ederer, R. Endoh, K. Taniguchi, S. Nagata

Faculty Publications

The electronic structure of spinel-type Cu1-xNixRh2S4 (x=0.0, 0.1, 0.3, 0.5, 1.0) and CuRh2Se4 compounds has been studied by means of x-ray photoelectron (SPS) and fluorescent spectroscopy. Cu L3, Ni L3, S L2,3, and Se M2,3 x-ray emission spectra (XES) were measured near thresholds at Beamline 8.0 of the Lawrence Berkeley Laboratory's Advanced Light Source. XES measurements of the constituent atoms of these compounds, reduced to the same binding energy scale, are found to be in excellent agreement with XPS valence bands. The calculated XES spectra which include dipole matrix elements show that the partial density of states reproduce experimental spectra …