Metabolic hydrogen degradation in the presence of short chain and long chain fatty acids under anaerobic conditions.

The effects of volatile short chain fatty acids (VFAs) and long-chain fatty acids (LCFAs) on hydrogen consumption were investigated using a mixed anaerobic culture acclimated to glucose. The study was conducted in serum bottles by adding LCFAs (2000 mg l-1 oleic or linoleic acid) and VFAs (0 to 1500 mg l-1 acetate, propionate, or butyrate) to the culture and hydrogen (500 or 1000 mumoles) to the headspace. Overall, the consequence of increasing the VFA concentration in the presence of LCFAs caused an increased inhibition of hydrogen consumption. VFAs were also examined in mixtures. Experiments with similar total VFA concentrations showed similar levels of inhibition in the range studied, though increased total VFA concentration increased inhibition. The effect of incubation time of individual LCFAs and VFAs prior to hydrogen addition was investigated. LCFA and VFA incubation time had a statistically significant effect on hydrogen consumption.Dept. of Civil and Environmental Engineering. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis2006 .R695. Source: Masters Abstracts International, Volume: 45-01, page: 0432. Thesis (M.A.Sc.)--University of Windsor (Canada), 2006

An analysis of penetration and ricochet phenomena in oblique hypervelocity impact

An experimental investigation of phenomena associated with the oblique hypervelocity impact of spherical projectiles on multisheet aluminum structures is described. A model that can be employed in the design of meteoroid and space debris protection systems for space structures is developed. The model consists of equations that relate crater and perforation damage of a multisheet structure to parameters such as projectile size, impact velocity, and trajectory obliquity. The equations are obtained through a regression analysis of oblique hypervelocity impact test data. This data shows that the response of a multisheet structure to oblique impact is significantly different from its response to normal hypervelocity impact. It was found that obliquely incident projectiles produce ricochet debris that can severely damage panels or instrumentation located on the exterior of a space structure. Obliquity effects of high-speed impact must, therefore, be considered in the design of any structure exposed to the meteoroid and space debris environment

An Evaluation of Highway Flood Damage statistics

Hydraulic events result in thousands of incidents of property damage each year. The U. S. Army Corps of Engineers estimates that annual damage averages over $2 billion (CaE, 1991). Federal, state, and local agencies have set up emergency assistance programs to help pay these unusually heavy expenses. Despite the detail of the policies regulating such programs, a comprehensive database describing the causes and consequences of flood losses does not exist. In an effort to obtain clear and consistent statistics on highway related damage, the disaster files of the Federal Highway Administration\u27s (FHWA) Emergency Relief (ER) Fund and the Federal Emergency Management Agency\u27s (FEMA) Disaster Assistance Program (DAP) have been studied

Mental Health First Aid Training for VCU Faculty and Staff

Mental Health First Aid (MHFA), an international training program, teaches participants to notice and support individuals experiencing a mental health or substance use issue and connects them to appropriate resources. While resources exist for students, this project aims to implement MHFA as a professional development opportunity for VCU faculty and staff. A successful pilot training held this summer demonstrates the need and desire for training in the VCU community. Evidence shows mental health issues lead to absenteeism, employee turnover and increased healthcare costs, costing organizations billions in recruitment that may have been avoided. Through state partnerships, trainers are available to offer this one-day program multiple times a year

On Taungurung Land

On Taungurung Land: Sharing History and Culture is the first monograph to examine how the Taungurung Nation of central Victoria negotiated with protectors and pastoralists to retain possession of their own country for as long as possible. Historic accounts, to date, have treated the histories of Acheron and Mohican Aboriginal stations as preliminary to the establishment of the more famous Coranderrk on Wurundjeri land. Instead of 'rushing down the hill' to Coranderrk, this book concentrates upon the two foundational Aboriginal stations on Taungurung Country. A collaboration between Elder Uncle Roy Patterson and Jennifer Jones, the book draws upon Taungurung oral knowledge and an unusually rich historical record. This fine-grained local history and cultural memoir shows that adaptation to white settlement and the preservation of culture were not mutually exclusive. Uncle Roy shares generational knowledge in this book in order to revitalise relationships to place and establish respect and mutual practices of care for Country

MR421: The Effects of Water Clarity on Economic Values and Economic Impacts of Recreational Uses of Maine\u27s Great Ponds

No study has been done, in Maine or elsewhere, to examine how different levels of water clarity affect the values people place on lakes they visit for recreation. These are people who do not own property, but use some form of public access for lake recreation such as swimming, boating, and fishing. Specifically, we focus on these peuple, whom we will refer to as access users, to find out who uses Maine\u27s lakes for recreation and how their use is affected by water clarity. The specific research objectives addressed include the following: (1) Estimate the number of access users. (2) Estimate the effects of water clarity on net economic values and expenditures, and consequently economic impacts, of access users. (3) Estimate the net economic value access users place on a statewide program to protect Maine\u27s lakes from eutrophication Data to address these objectives were collected using a mail survey sent to a random sample of Maine residents who were at least 20 years of age.https://digitalcommons.library.umaine.edu/aes_miscreports/1018/thumbnail.jp

Alternative Splicing: Associating Frequency with Isoforms

In the simplest model of protein production, a gene gives rise to a single protein; DNA is transcribed to form pre-mRNA, which is converted to mRNA by splicing or removing introns. The result is a chain of exons that is translated to form a protein. Alternative splicing of exons may result in the formation of multiple proteins from the same gene sequence. However, not all of these proteins may be functional. Thus, we ask whether we can predict and rank (in order of frequency of occurrence and functional importance) the set of possible proteins for a gene. Herein we describe a tool that predicts the relative frequencies of isoforms that can be produced from a given gene

Engaging New York City Volunteer Stewards Through Shifting Forest Management Goals

The New York City Department of Parks & Recreation (NYC Parks) manages 7,300-acres of natural area forests by hands-on work of professional staff and volunteer stewards. Through NYC Parks’ Stewardship program, trained staff engage over 8,000 volunteers annually, many of them working in natural area forests removing invasive plants, planting, and formalizing trails throughout the city. Here we discuss the evolution of Parks’ community stewardship through a highly publicized tree planting campaign, the campaign’s conclusion and its newest approach to forest management