Interview with Robert Reynolds, August 23, 2000

In the last part of a series of interviews conducted by Michael J. Birkner, Robert Reynolds discussed on August 23, 2000 his life after World War II. After the war, Reynolds moved to Gettysburg. He discussed his time at a rubber factory and his decision to become a teacher at 50. Length of Interview: 49 minutes Collection Note: This oral history was selected from the Oral History Collection maintained by Special Collections & College Archives. Transcripts are available for browsing in the Special Collections Reading Room, 4th floor, Musselman Library. GettDigital contains the complete listing of oral histories done from 1978 to the present. To view this list and to access selected digital versions please visit -- http://gettysburg.cdmhost.com/cdm/landingpage/collection/p16274coll

The Determinants of State-Level Antitrust Enforcement

While there has been a considerable literature exploring determinants of antitrust enforcement in the United States, studies have been based either on aggregate federal enforcement data over time (exploring cyclical influences) or cross-industry studies, usually for a single year or aggregated over several years. What has never been investigated is the pattern of state-level antitrust. This is somewhat surprising, as this has been a major activity of many state Attorneys General. In this paper, we explain state antitrust enforcement across states and time (for a 15-year period), examining a number of economic and political determinants which have been proposed in the literature.antitrust enforcement

Smoking and Mortality Among US Astronauts

Astronauts have lower age-specific mortality risk than the U.S. general population from all natural causes of death, particularly cardiovascular disease and cancer. Yet, understanding if they are as healthy as their backgrounds predict they should be, requires that epidemiologists understand (and measure) all potentially confounding exposures in this cohort. Tobacco smoking prevalence has been measured in the U.S. astronaut cohort, but its impact on mortality has not been previously assessed. If smoking history has a negative impact on mortality, this could confound attempts to measure the relative health of astronauts

Orbital debris research at NASA Johnson Space Center, 1986-1988

Research on orbital debris has intensified in recent years as the number of debris objects in orbit has grown. The population of small debris has now reached the level that orbital debris has become an important design factor for the Space Station. The most active center of research in this field has been the NASA Lyndon B. Johnson Space Center. Work is being done on the measurement of orbital debris, development of models of the debris population, and development of improved shielding against hypervelocity impacts. Significant advances have been made in these areas. The purpose of this document is to summarize these results and provide references for further study

Network Graphs and the Case for Virtual Reality

No abstract availabl

Extended Levett trigonometric series

An extension of two finite trigonometric series is studied to derive closed form formulae involving the Hurwitz-Lerch zeta function. The trigonometric series involves angles with a geometric series involving the powers of 3. These closed formulae are used to derive composite finite series involving special functions, trigonometric functions and fundamental constants. A short table summarizing some interesting results is produced.Comment: arXiv admin note: substantial text overlap with arXiv:2309.0334

MAESTRA2: A MODEL FOR SIMULATING SPATIALLY EXPLICIT CARBON DIOXIDE EXCHANGE RATES AMONG SPECIES\u27 WATER STRESS RESPONSE

MAESTRA2, a species specific mechanistic model, was parameterized to estimate water use, carbon accumulation and organ specific respiration of five deciduous tree species under both irrigated and water stressed conditions. The model was validated using temporally and spatially explicit ecophysiological data to account for seasonal changes in species physiology. The following tree species: Acer rubrum L. \u27Summer Red\u27 (A. rubrum), Betula nigra (B. nigra), Paulownia elongata (P. elongata), Quercus nuttallii (Q. nuttallii), and Quercus phellos (Q. phellos) were intensively measured and organ specific destructively harvested samples were compared to modeled estimates of carbon accumulation. Among species, we observed variability in carbon dioxide exchange rates under well watered and water stressed conditions. A. rubrum carbon sequestration under water deficit was 29% less than the well watered treatment. The species other than A. rubrum were similar to each other (56%-63% less carbon sequestered as compared to the well watered). A. rubrum root biomass was higher in the drought treatment as compared to the well watered control, possibly explaining its carbon sequestration characteristics. Modeling validation results indicated that the model does have the capability to down regulate photosynthetic capacity on a per species basis. Differences between measured values and modeled estimates were within 6% for A. rubrum, 12% for B. nigra, 8% for P. elongata, 2% for Q. nuttallii, and 7% for Q. phellos. Therefore, seasonal carbon accumulation estimates adequately represented field observations in both well watered and drought treatments. Moreover, sap flux measurements confirmed the models ability to estimate diurnal gas exchange under both well watered and water stressed conditions. The work provides evidence that MAESTRA2 is a process-based model capable of accurately quantifying spatially explicit carbon dioxide exchange rates at the species level and in response to water stress

Extended Blumberg-Dieckmann Series

This paper introduces a set of finite summation formulas and utilize them to establish various functional relationships involving the multivariable Hurwitz-Lerch zeta function. Additionally, the paper examines several examples of these functional relationships

Out of Order?: Russian Prefixes, Complexity-based Ordering and Acyclicity

There is a longstanding debate about how to appropriately model the combinability of affixes, especially English suffixes. One widely accepted principle is the notion of so-called selectional restrictions, i.e. grammatical requirements of particular affixes. For example, the suffix -ness can only combine with adjectival bases. Hay (2002) proposed a psycholinguistic approach to affix ordering now known as Complexity-Based Ordering (CBO), which claims that affix order is determined by the parsability of the affixes, i.e. more separable affixes can appear only outside of less separable affixes. Hay shows that this principle accounts for why many grammatical affix combinations are unattested. CBO has since been supported by research of derivational affixes (English prefixes, English suffixes and Russian suffixes). However, as a processing model, CBO should apply very broadly, and in this paper, I discuss some difficulties of reconciling CBO with inflectional affixes. I also examine combinations of Russian prefixes - which have some properties typical of inflection - and show, surprisingly, that they can be ordered with a significantly low number of cycles, as CBO predicts. I discuss alternatives to CBO that explain this phenomenon, and suggest future research to distinguish them