Physical Sciences and Mathematics Commons^™

Survival Point Estimate Prediction In Matched And Non-Matched Case-Control Subsample Designed Studies, Annette M. Molinaro, Mark J. Van Der Laan, Dan H. Moore, Karla Kerlikowske

U.C. Berkeley Division of Biostatistics Working Paper Series

Providing information about the risk of disease and clinical factors that may increase or decrease a patient's risk of disease is standard medical practice. Although case-control studies can provide evidence of strong associations between diseases and risk factors, clinicians need to be able to communicate to patients the age-specific risks of disease over a defined time interval for a set of risk factors.

An estimate of absolute risk cannot be determined from case-control studies because cases are generally chosen from a population whose size is not known (necessary for calculation of absolute risk) and where duration of follow-up is not …

Red Rock Desert Learning Center: The Vision, Red Rock Desert Learning Center

Oliver Ranch Project

To instill stewardship and respect by increasing knowledge and understanding of the Mojave Desert ecosystems and cultures through a unique experiential discovery program.

Efficient Wait-Free Algorithms For Implementing Ll/Sc Objects, Srdjan Petrovic

Dartmouth College Ph.D Dissertations

Over the past decade, a pair of instructions called load-linked (LL) and store-conditional (SC) have emerged as the most suitable synchronization instructions for the design of lock-free algorithms. However, current architectures do not support these instructions; instead, they support either CAS (e.g., UltraSPARC, Itanium, Pentium) or restricted versions of LL/SC (e.g., POWER4, MIPS, Alpha). Thus, there is a gap between what algorithm designers want (namely, LL/SC) and what multiprocessors actually support (namely, CAS or restricted LL/SC). To bridge this gap, this thesis presents a series of efficient, wait-free algorithms that implement LL/SC from CAS or restricted LL/SC.

Day 3: Friday, 19 August 2005: Section 7 Consultation, Susan Linner, Leslie Elwood, Steve Culver

Endangered Species Act Congressional Field Tour (August 17-19)

10 pages (includes color illustrations and map).

Contains references.

Day 3: Friday, 19 August 2005: Habitat Conservation Plans, Susan Linner, Anne Ruggles, Anne Winans

Endangered Species Act Congressional Field Tour (August 17-19)

5 pages (includes illustration).

Contains references.

Day 3: Friday, 19 August 2005: States And The Esa, Pam Inmann, Tom Norton

Endangered Species Act Congressional Field Tour (August 17-19)

1 page.

Contains references.

Unraveling The Mechanism Of A Potent Transcriptional Activator, Brian Brennan, Zhen Lu, Steven Rowe, Sarah Davis, Renee Metzler, Johnathan Nau, Chinmay Majmudar, Anna Mapp, Aseem Ansari

Brian B. Brennan

Despite their enormous potential as novel research tools and therapeutic agents, artificial transcription factors (ATFs) that up-regulate transcription robustly in vivo remain elusive. In investigating an ATF that does function exceptionally well in vivo, we uncovered an unexpected relationship between transcription function and a binding interaction between the activation domain and an adjacent region of the DNA binding domain. Disruption of this interaction leads to complete loss of function in vivo, even though the activation domain is still able to bind to its target in the transcriptional machinery. We propose that this interaction parallels those between natural activation domains and …

A User-Friendly Introduction To Link-Probit-Normal Models, Brian S. Caffo, Michael Griswold

Johns Hopkins University, Dept. of Biostatistics Working Papers

Probit-normal models have attractive properties compared to logit-normal models. In particular, they allow for easy specification of marginal links of interest while permitting a conditional random effects structure. Moreover, programming fitting algorithms for probit-normal models can be trivial with the use of well-developed algorithms for approximating multivariate normal quantiles. In typical settings, the data cannot distinguish between probit and logit conditional link functions. Therefore, if marginal interpretations are desired, the default conditional link should be the most convenient one. We refer to models with a probit conditional link an arbitrary marginal link and a normal random effect distribution as link-probit-normal …

Dynamic Dead Variable Analysis, Micah S. Lewis

Theses and Dissertations

Dynamic dead variable analysis (DDVA) extends traditional static dead variable analysis (SDVA) in the context of model checking through the use of run-time information. The analysis is run multiple times during the course of model checking to create a more precise set of dead variables. The DDVA is evaluated based on the amount of memory used to complete model checking relative to SDVA while considering the extra overhead required to implement DDVA. On several models with a complex control flow graph, DDVA reduces the amount of memory needed by 38-88MB compared to SDVA with a cost of 36 bytes of …

Day 2: Thursday, 18 August 2005: Colorado Native Aquatic Species Restoration Program, Dave Schnoor

Endangered Species Act Congressional Field Tour (August 17-19)

6 pages (includes illustrations).

Contains one reference.

Day 2: Thursday, 18 August 2005: Upper Colorado River Endangered Fish Recovery Program, Bob Muth, Tom Pitts, Dan Luecke

Endangered Species Act Congressional Field Tour (August 17-19)

58 pages (includes illustrations and maps).

Contains references.

Day 2: Thursday, 18 August 2005: Candidate Conservation Agreements And Collaborative Multi-Party Agreements, Al Pfister, Gary Skiba, Tim Lehmann

Endangered Species Act Congressional Field Tour (August 17-19)

8 pages (includes illustrations and maps).

Contains references.

Day 2: Thursday, 18 August 2005: Canada Lynx Reintroduction, Gary Skiba, Rob Edward, Bonnie Kline

Endangered Species Act Congressional Field Tour (August 17-19)

5 pages (includes some color illustrations and maps).

Contains references.

Aquaculture-Based Calibration Of The M.Edulis Isotope Paleothermometer, Karl J. Kreutz, Harold Borns, Douglas Introne, Bruce Barber, Sven Funder

University of Maine Office of Research Administration: Grant Reports

Oxygen isotopic analysis of marine carbonate shells (δ¹⁸O_c) is a standard paleoceanographic technique used to document the chronology of seawater temperature change. Shell δ¹⁸O_c depends not only upon seawater temperature, but also upon the isotopic composition of the seawater (δ¹⁸O_w; related to salinity) and any species-specific fractionation that occurs during biomineralization. In the past, the interpretation of shell δ¹⁸O_c has been based upon theoretical studies of chemical equilibrium and kinetics, or laboratory experiments involving the inorganic precipitation of CaCO₃ from solution. Other methods have employed …

Acquisition Of A High Resolution Icp-Ms For Environmental Research And Training In Maine, Karl J. Kreutz

University of Maine Office of Research Administration: Grant Reports

This award provides support to significantly enhance the elemental and isotopic analysis capabilities at the University of Maine through the acquisition of a high resolution inductively coupled plasma mass spectrometer (HR-ICP-MS). The HR-ICP-MS will enable environmental scientists and students at UMaine, as well as other educational institutions and state agencies, to substantially broaden their interdisciplinary research interests far beyond the current possibilities. Specifically, a state-of-the-art HR-ICP-MS will enable the PIs to: 1) Dramatically expand our element concentration and element ratio analysis capabilities in aqueous matrices. Existing UMaine research strengths in Quaternary science, environmental geochemistry, and marine biogeochemistry rely upon accurate …

Congressional Staff Update August 17, 2005, Public Lands Institute

Presentations (PLI)

The Public Lands Institute is dedicated to strengthening the national fabric that is essential for the protection, conservation, and management of public lands.

In collaboration with federal, state, and non-profit partners, the institute is creating new knowledge, advancing technology, improving education, and engaging the public to enhance public lands stewardship.

Ua3/9/5 Conservation Reserve Enhancement Program (Crep), Wku President's Office

WKU Archives Records

Talking points used by WKU president Gary Ransdell regarding WKU's partnering with Conservation Reserve Enhancement Program.

Aerial Mass Color - Marking Of Blackbird Roosts, H. Jeffrey Homan, George M. Linz

United States Department of Agriculture Wildlife Services: Staff Publications

We use mass color-marhng to track the local and regional movements of large roosts of blackbirds (Icteridae). Several marhngs have been done by National Wildlife Research Center scientists, including marhng of spring roosts in northeastern Missouri and eastern South Dakota (Knittle et al. 1987, Knittle et al. 1996, Homan et al. 2004), fall roosts in central North Dakota (Linz et al. 1991, Homan et al. 2005), and winter roosts in the southern U.S. (Harsch 1995). Here, we provide a description of the process and methodology of aerial mass color-marhng with fluorescent particles.

Self-Adjusting Finite State Machines: An Approach To Real-Time Autonomous Behavior In Robots, Scott Schwartz

Computer Science Honors Theses

In the Robotics industry, it is a frequent requirement that robots operate in real-time. The usual approach to this issue involves creating robots driven entirely by direct environmental input rather than complicated planning and decision-making AI. This approach means that the current state of the robot in relation to its environment exclusively determines the actions of the robot. In the simplest terms, this approach creates a Finite State Machine (FSM). Clearly, a standard FSM is completely pre-deterministic upon its creation. This is a drawback which immediately disallows the robot to cope with dynamic environments in an autonomous manner. This research …

Pm Emission From A Commercial Jet Engine -- Project Apex, Donald E. Hagen, Philip D. Whitefield, Prem Lobo, Max B. Trueblood

Physics Faculty Research & Creative Works

Project APEX (Aircraft Particle Emissions eXperiment) was a multi-agency commercial aircraft emission characterization and technology demonstration experiment. Its objective was to characterize particle and trace gas precursor species in the emissions from a NASA DC-8 aircraft with General Electric CFM56-2C1 engines at the engine exit plane as well as selected down stream locations. This was to advance the understanding of particle emissions and their evolution in the atmosphere from a current in-service turbofan engine. The test was conducted at the NASA Dryden Flight Research Center at Edwards Air Force Base California during April 15-30, 2004. Participants included the National Aeronautics …

Agenda: Endangered Species Act Congressional Field Tour, University Of Colorado Boulder. Natural Resources Law Center

Endangered Species Act Congressional Field Tour (August 17-19)

The Center sponsored its third annual field tour for staff members of the United States Congress, the United States Environmental Protection Agency, and the Colorado state legislature.

Day 1: Wednesday, 17 August 2005: Introduction, Mark Squillace

Endangered Species Act Congressional Field Tour (August 17-19)

5 pages.

Contains references.

Day 1: Wednesday, 17 August 2005: Science And The Esa, Joy Nicholopoulos, William Lewis

Endangered Species Act Congressional Field Tour (August 17-19)

43 pages (includes illustrations and map).

Contains references.

Day 1: Wednesday, 17 August 2005: Biodiversity And Critical Habitat, Charles Bedford, Federico Cheever, Tim Sullivan

Endangered Species Act Congressional Field Tour (August 17-19)

6 pages (includes color illustration).

Contains references.

Using Box-Scores To Determine A Position's Contribution To Winning Basketball Games, Garritt L. Page

Theses and Dissertations

Basketball is a sport that has become increasingly popular world-wide. At the professional level it is a game in which each of the five positions has a specific responsibility that requires unique skills. It seems likely that it would be valuable for coaches to know which skills for each position are most conducive to winning. Knowing which skills to develop for each position could help coaches optimize each player's ability by customizing practice to contain drills that develop the most important skills for each position that would in turn improve the team's overall ability. Through the use of Bayesian hierarchical …

Extensions Of The Cayley-Hamilton Theorem With Applications To Elliptic Operators And Frames., Alberto Mokak Teguia

Electronic Theses and Dissertations

The Cayley-Hamilton Theorem is an important result in the study of linear transformations over finite dimensional vector spaces. In this thesis, we show that the Cayley-Hamilton Theorem can be extended to self-adjoint trace-class operators and to closed self-adjoint operators with trace-class resolvent over a separable Hilbert space. Applications of these results include calculating operators resolvents and finding the inverse of a frame operator.

Cell Toxicity And Uptake Of Rrr-Alpha-Tocopheryl Polyethylene Glycol 1000 Succinate (Tpgs) By Various Cell Ines In Vitro., Christelle Komguem Kamga

Electronic Theses and Dissertations

This research focused on investigating and comparing the cytotoxicity and cellular uptake of RRR-alpha-tocopheryl polyethylene glycol succinate (TPGS, with that of alpha-tocopheryl succinate (α-TS). Both TPGS and α-TS are water-soluble forms of vitamin E with important clinical applications. Cytotoxicity assays with RAW 264.7 and LNCaP cells incubated overnight with TPGS or α-TS at concentrations ≥ 12.4 μM suggest that α-TS is more cytotoxic than TPGS. Macrophages were found to be more sensitive than LNCaP cells when treated with similar concentrations of α-TS. For both cell lines, most of the TPGS or α-TS taken up remained esterified after 24 hours. Our …

The Interquartile Range: Theory And Estimation., Dewey Lonzo Whaley

Electronic Theses and Dissertations

The interquartile range (IQR) is used to describe the spread of a distribution. In an introductory statistics course, the IQR might be introduced as simply the “range within which the middle half of the data points lie.” In other words, it is the distance between the two quartiles, IQR = Q₃ - Q₁. We will compute the population IQR, the expected value, and the variance of the sample IQR for various continuous distributions. In addition, a bootstrap confidence interval for the population IQR will be evaluated.

Evaluating The Effectiveness Of A Company's Online Health And Safety Training Program By Assessing Its Employees Perceptions And Knowledge., Jo Nell Maynard Mullins

Electronic Theses and Dissertations

A cross-sectional study was conducted to evaluate a company’s online H & S training program. The ABC Company’s online 8-hr HAZWOPER refresher course is based on current OSHA standard topics required for certification and principles flexible to fit site- or task-specific situations and conditions.

An 18-question survey was used to evaluate employee perceptions of online training compared to traditional classroom training. Perceptions were compared by demographic variables (e.g. gender, position, race, age and longevity with the ABC Company), which suggested that only age had an influence on employee response. Fifty-five percent of the employees surveyed preferred online training as compared …

Potential Energy Surface Around The Tropylium Ion., Kenneth Wayne Bullins

Electronic Theses and Dissertations

The formation of the tropylium ion, C₇H₇⁺, in the mass spectrum of toluene is a chemical process that has been studied extensively in the past. The advances in computational power of personal computers have made the investigation of the pathway to form this ion and its subsequent decomposition feasible at a fairly high level of theory. The calculations that we performed were at the HF/6-31G (d, p) and the B3LYP/6-311++G (2d) levels. This work will show areas of the potential energy surface around the highly symmetric tropylium ion to give a glance of possible mechanisms …