Life Sciences Commons^™

Deriving In Situ Phytoplankton Absorption For Bio-Optical Productivity Models In Turbid Waters, Christina Orrico, Matthew J. Oliver, Oscar Schofield, Trisha Bergmann, Scott Glenn, Mark A. Moline

Biological Sciences

As part of Hyperspectral Coupled Ocean Dynamics Experiment, a high-resolution hydrographic and bio-optical data set was collected from two cabled profilers at the Long-Term Ecosystem Observatory (LEO). Upwelling-and downwelling-favorable winds and a buoyant plume from the Hudson River induced large changes in hydrographic and optical structure of the water column. An absorption inversion model estimated the relative abundance of phytoplankton, colored dissolved organic matter (CDOM) and detritus, as well as the spectral exponential slopes of CDOM and detritus from in situ WET Labs nine-wavelength absorption/attenuation meter (ac-9) absorption data. Derived optical weights were proportional to the parameter concentrations and allowed …

Quality Of Regular And Parboiled Rice In Long-Term Storage, L. Coons, M. B. Halling, Michelle A. Lloyd, Lynn V. Ogden, Oscar A. Pike

Faculty Publications

There is interest in storing food for long periods of time for such uses as disaster relief efforts, military rations and space travel. Rice hermetically sealed in cans and treated to remove oxygen is available in the retail market, but further work is needed to determine the effects of long-term storage on quality. The objective of this research was to investigate the quality of regular and parboiled white rice packaged for long-term storage in cans treated to reduce oxygen levels and held at ambient temperature for up to 30 years. Eighteen samples of white rice (11 regular, 7 parboiled) packaged …

Smokejumper Obituary: Entwistle, Dale A. (Missoula 1944), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Portulaca Oleracea L., Loy R. Phillipe, Paul B. Marcum, John E. Ebinger

Specimens by Name

No abstract provided.

The Assessment Of Antibiotic Resistance And Detection Of Class 1 And Class 2 Integrons In Fecal Coliform Bacteria Isolated From The Triplett Creek Watershed, Rowan County, Kentucky, Tina Howard Ousley

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Tina Howard Ousley on July 15, 2004.

Smokejumper Obituary: Huset, Oliver Lynn (Missoula 1944), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Genetic Diversity Of Peanut (Arachis Hypogaea L.) And Its Wild Relatives Based On The Analysis Of Hypervariable Regions Of The Genome, Marcio De Carvalho Moretzsohn, Mark S. Hopkins, Sharon E. Mitchell, Stephen Kresovich, Jose Francisco Montenegro Valls, Marcio Elias Ferreira

Faculty Publications

Background: The genus Arachis is native to a region that includes Central Brazil and neighboring countries. Little is known about the genetic variability of the Brazilian cultivated peanut (Arachis hypogaea, genome AABB) germplasm collection at the DNA level. The understanding of the genetic diversity of cultivated and wild species of peanut (Arachis spp.) is essential to develop strategies of collection, conservation and use of the germplasm in variety development. The identity of the ancestor progenitor species of cultivated peanut has also been of great interest. Several species have been suggested as putative AA and BB genome donors …

The Application Of Pedology, Stable Carbon Isotope Analyses And Geographic Information Systems To Ancient Soil Resource Investigations At Piedras Negras, Guatemala, Kristofer Dee Johnson

Theses and Dissertations

The ancient inhabitants of the Maya Lowlands enjoyed a long and fruitful period of growth which climaxed at around AD 800. At that time, millions of people successfully subsisted in a challenging environment that today only supports a population a fraction of that size. These facts, and the subsequent "Maya Collapse", are the impetus of many recent studies that utilize environmental data, in addition to conventional archaeology, to investigate this Maya mystery. Pedological studies and stable carbon isotope analysis of soil organic matter, combined with Geographic Information Systems (GIS) are three tools that can be used to answer crucial questions …

Zapus Princeps, E. Blake Hart, Mark C. Belk, Eralee Jordan, Malinda W. Gonzalez

Faculty Publications

Zapus princeps Allen, 1893:71. Type locality “Florida, La Plata Co., Colorado.”
Zapus pacificus Merriam, 1897:104. Type locality “Prospect, Rogue River Valley, Jackson Co., Oregon.”
Zapus saltator Allen, 1899:3. Type locality “Telegraph Creek, British Columbia.”

Pressurized Hot Water: An Alternative Method Of Nutrient Extraction And Subsequent Analysis For Use In Small-Scale Agriculture, Kristy Susanne Crane

Theses and Dissertations

Soil analysis for small acreage farms in developing countries is often inconvenient and prohibitively expensive using current procedures, yet the information gained from these soil tests could have economical and environmental benefits. The pressurized hot-water (PHW) extraction coupled with colorimetric or turbidimetric analyses shows promise as an alternative to current procedures. Accepted methods of colorimetric analysis for NO3-N and P exist but an alternative method to atomic absorption spectrometry for K analysis is needed. Of the many possible methods to quantify K, tests performed in the Brigham Young University (BYU) laboratory found sodium tetraphenylborate to be unsatisfactory and sodium cobaltinitrite …

A Hydrothermal After-Ripening Time Model Of Seed Dormancy Loss In Bromus Tectorum, Necia Beck Bair

Theses and Dissertations

After-ripening, the process of seed dormancy loss in dry storage is associated with a decrease in the mean base water potential, one of the parameters of hydrothermal time. The rate of change of the mean base water potential is assumed to be a linear function of temperature above a specific base temperature and as a result can be described by a thermal after-ripening (TAR) time model, an extension of hydrothermal modelling. The thermal requirement for after-ripening is the thermal time necessary for the modelling base water potential of the seed to shift from its original value to its final value. …

Propagation From Cuttings, Larry A. Sagers, Gary Fawson

All Archived Publications

No abstract provided.

Gene White, Gene White, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Gene White grew up in Ohio and attended Miami University of Ohio, graduating with degrees in Home Economics Education and Nutrition, which was called Dietetics at that time. She then continued her graduate education at Ohio State University. She worked more than twenty years as Food Service Director in China Lake, California. She went on to become that state’s Director of Nutrition Services in the late 1970s and while in that position she served as President of the American School Food Service Association from 1977-1978. Currently she is involved with international feeding programs.

Gene White’s oral history interview was updated …

Effects Of Sire Misidentification On Estimates Of Genetic Parameters For Birth And Weaning Weights In Hereford Cattle, S. L. Senneke, M. D. Macneil, L. Dale Van Vleck

Department of Animal Science: Faculty Publications

Birth weights (4,155) and weaning weights (3,884) of Line 1 Herefords collected at the Fort Keogh Livestock and Range Research Laboratory in Miles City, MT, between the years of 1935 to 1989 were available. To study the effect of misidentification on estimates of genetic parameters, the sire identification of calf was randomly replaced by the identification of another sire based on the fraction of progeny each sire contributed to a yearly calf crop. Misidentification rates ranged from 5 to 50% with increments of 5%. For each rate of misidentification, 100 replicates were obtained and analyzed with single-trait and two-trait analyses …

Marilyn Briggs, Marilyn Briggs, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Marilyn Briggs began her career in child nutrition as School Food Service Director for San Juan Unified school district in Sacramento, California, during the 1970s. Later she served as Coordinator of the Nutrition Education and Training Program and worked on what became the prototype for the National Nutrient Standard Menu Planning System. She recently stepped down as state Director of Nutrition Services for California to work on her doctorate in nutrition science. She has held offices in the Society for Nutrition Education, the American School Food Service Association and American Dietetic Association.

The Effect Of Religiosity And Spirituality On Work Practices And Trust Levels In Managers And Their Subordinates In Food And Nutrition Care Departments, Jennifer S. Oler

Theses and Dissertations

The purpose of this study was to examine the extent to which religiosity and spirituality affected daily work practices and leader/follower trust levels in foodservice and nutrition directors and their subordinates. A similar 72-item survey questionnaire was developed for both the directors and employees, which was completed by 129 directors and 530 employees. Both questionnaires contained questions on demographics, religious influences on work practices, trust characteristics, and three validated measures of religiosity: 1) worship service attendance (1=Religiosity Score), 2) influence of spiritual beliefs on daily life, and 3) frequency of prayer (2 + 3=Spirituality Score). Frequency data was gathered for …

The Kin Composition Of Social Groups: Trading Group Size For Degree Of Altruism, Leticia Avilés, Jeffrey Alan Fletcher, Asher D. Cutter

Complex Systems Faculty Publications and Presentations

Why some social systems form groups composed of kin, while others do not, has gone largely untreated in the literature. Using an individual-based simulation model, we explore the demographic consequences of making kinship a criterion in group formation. We find that systems where social groups consist of one generation breeding associations may face a serious trade-off between degree of altruism and group size that is largely mediated by their kin composition. On the one hand, restricting groups to close kin allows the evolution of highly altruistic behaviors but may limit group size to suboptimal levels, the more severely so the …

Lysimachia Ciliata L., Kerry Barringer

Specimens by Name

No abstract provided.

Propagation By Grafting And Budding, Larry A. Sagers

All Archived Publications

No abstract provided.

Body Mass Index And Soft Drink Consumption Among Adolescents, Olivia Love Mccord

Theses and Dissertations

Objective: To determine the relationship between body mass index (BMI) and soft drink consumption among adolescents. It is hypothesized that soft drink consumption contributes to overweight and obesity among adolescents.

Background: Research examining the relationship between body mass index and soft drink consumption is inconsistent. Several studies have found a negative association between total sugar intake and BMI; however, others have found a link between sugar-sweetened drinks and obesity. There are no known studies that have controlled for physical activity.

Data and Methods: Data on approximately 225 adolescents were used. Frequency of soft drink consumption, type of milk, and calcium …

Flash Artifact Suppression In Two-Dimensional Ultrasound Imaging, Richard Yung Chiao, Gregory Ray Bashford, Mark Peter Feilen, Cynthia Andrews Owen

Biomedical Imaging and Biosignal Analysis Laboratory

Flash artifacts in ultrasound flow images are suppressed to achieve enhanced flow discrimination. Flash artifacts typically occur as region of elevated signal strength (brightness or equivalent color) within an image. A flash suppression algorithm included the steps of estimating the flash within an image and then suppressing the estimated flash. The mechanism for flash suppression is spatial filtering. An extension of this basic method used information from adjacent frames to estimate the flash and/or to smooth the resulting image sequence. Temporal information from adjacent frames is used as an adjunct to improve performance.

Enhancing Web Services Description And Discovery To Facilitate Composition, Preeda Rajasekaran, John A. Miller, Kunal Verma, Amit P. Sheth

Kno.e.sis Publications

Web services are in the midst of making the transition from being a promising technology to being widely used in the industry. However, most efforts to use Web services have been manual, thus slowing down the ever changing and dynamic businesses of today. In this paper, we contend that more expressive descriptions of Web services will lead to greater automation and thus provide more agility to businesses. We present the METEOR-S front-end tools for source code annotation and semantic Web service description generation. We also present WSDL-S, a language created for incorporating semantic descriptions in the industry wide accepted WSDL, …

Master Gardener Program, Larry A. Sagers

All Archived Publications

No abstract provided.

Rice Yields Decline With Higher Night Temperature From Global Warming, Shaobing Peng, Jianliang Huang, John Sheehy, Rebecca C. Laza, Romeo M. Visperas, Xuhua Zhong, Grace S. Centeno, Gurdev S. Khush, Kenneth G. Cassman

Department of Agronomy and Horticulture: Faculty Publications

The impact of projected global warming on crop yields has been evaluated by indirect methods using simulation models. Direct studies on the effects of observed climate change on crop growth and yield could provide more accurate information for assessing the impact of climate change on crop production. We analyzed weather data at the International Rice Research Institute Farm from 1979 to 2003 to examine temperature trends and the relationship between rice yield and temperature by using data from irrigated field experiments conducted at the International Rice Research Institute Farm from 1992 to 2003. Here we report that annual mean maximum …

Planting Landscape Trees, Larry A. Sagers

All Archived Publications

No abstract provided.

Plant Growth And Development, Larry A. Sagers

All Archived Publications

No abstract provided.

Plant Translation, Larry A. Sagers

All Archived Publications

No abstract provided.

Clarification On The Nomenclatural Status Of Six Genus-Group Names In The Tribe Trichiini (Coleoptera: Scarabaeidae: Cetoniinae), Andrew Smith

University of Nebraska State Museum: Entomology Papers

Six genus-group names in the tribe Trichiini (Coleoptera: Scarabaeidae: Cetoniinae) are discussed with regards to their availability and validity under the International Code of Zoological Nomenclature. Aleurostictus Kirby, Archimedius Kirby, Euclidius Kirby, Gymnodus Kirby, Tetrophthalmus Kirby, and Trichinus Kirby all have priority over most other generic names in the tribe but none of the names are in prevailing usage. Clarifications are needed due to the reemergence of Aleurostictus Kirby in current literature and confusion over the nomenclatural status of the other names. Type species are designated for Aleurostictus Kirby, Tetrophthalmus Kirby, and Stegopterus Burmeister and Schaum. The gender of the …

Fire Regimes And Resultant Forest Structure In Native Año Nuevo Monterey Pine (Pinus Radiata) Forest, California, Scott L. Stephens, Douglas D. Piirto, Domenico F. Caramagno

Natural Resources Management and Environmental Sciences

Native Monterey pine (Pinus radiata) forests occur in five populations on the west coast of North America. High severity fire has been reported to be the main disturbance agent that initiates seedling establishment for this species. To investigate the impacts of fire in this ecosystem, age structure and fire history data were collected from the native Ano Nuevo Monterey pine forest near Santa Cruz California. Stump cross-sections were removed from 10 randomly placed openings, and each was dated to determine tree age and fire history. Average mean fire return intervals were 11.2-20.1 y. Fifty-one percent of the Monterey …

Learning To Teach, Teaching To Learn, Lisa Nicholson, Susan Algert, Rachael Willey

Food Science and Nutrition

Community Based Learning (CBL) successfully enhances didactic objectives in a nutrition curriculum while serving the community. University students actively solved problems in a 'real world' situation and benefited non-profit locations. Emotionally, learners profited on personal levels through successfully overcoming barriers. Content analysis was used to demonstrate that using CBL in a 'Nutrition Education and Communication' class met didactic learning objectives, enhanced students' personal confidence in teaching, and strengthened awareness of interpersonal skills. 71 students, in pairs, developed and taught nutrition lessons in diverse community locations. Students kept a reflective journal throughout the five weeks of the experience.