Digital Commons Network^™

Ultrasound-Based Selection: Pitfalls And Rewards, Steve Paisley, Chris Loehr, Frances Niemala

Range Beef Cow Symposium

Ultrasound has become widely used by the seedstock industry as a selection and evaluation tool. Ultrasound estimates of Ribeye Area, or REA, Intramuscular fat, or %IMF (marbling), and Rump Fat have been used to develop several EPD’s for many breed associations. Despite widespread use by seedstock producers, there is still some apprehension by commercial producers. Additionally, the use of ultrasound for commercial herd replacement decisions, used by some producers, is worth discussing. There are both benefits, as well as cautions, to using ultrasound generated information in a commercial beef herd.

The Value Of Heterosis In Cow Herds: Lessons From The Past That Apply To Today, Matthew L. Spangler

Range Beef Cow Symposium

Beef cattle producers are currently faced with a multitude of challenges. The traditional cattle cycle appears to have deviated from conventional wisdom, in part because of increasing grain prices due to a biofuels ‘industry’ that has become a competitor for grain resources that the U.S. fed cattle industry has grown dependent upon. A suite of genetic tools have been provided, or are in the works, to address issues such as feed efficiency, fertility, and longevity; along with more traditional EPDs for production and carcass/ultrasound traits. Established EPDs have proven to be very successful at allowing producers to take advantage of …

Agricultural Applications For Electromagnetic Exposure, H. Aliakbarian, A. Enayati, H. Ameri Mahabadi, M.A. Soltani

Research Publications (2006 to 2010)

Despite the advances in bug controlling and antifreezing operations of agricultural products, the devastation of Sunne pests and freezing is still enormous. Traditional treatments such as chemical insecticides for bug controlling and covering to avoid freezing have not been sufficient. In the presented paper, new ideas of using electromagnetic treatment for anti-freezing operation, pre-harvest Sunne pest control, and Orchid flower control are introduced.

Analysis Of Hg And Stable Isotope Concentrations In Bald Eagle Feathers From The Great Lakes And Voyageurs National Park, Minnesota, Jennifer Thomsen

All Theses

Bald eagles (Haliaeetus leucocephalus) feed on a variety of aquatic and terrestrial wildlife. As top predators in their food chain, they may accumulate harmful concentrations of pollutants such as mercury, which can have detrimental effects on populations of this species. The stable isotope composition of feathers provides useful information about the food resources assimilated by bald eagles. The connection between mercury, (Hg), concentration and stable isotope concentration ( 13C and 15N) of feathers were measured to better understand the potential sources and pathways of Hg uptake by bald eagles living in the Great Lakes region of Michigan and Voyageurs National …

Testing The Waters

News Releases

No abstract provided.

The Alestle - Vol. 60 No. 33 - 12/11/2007, Southern Illinois University Edwardsville

The Alestle

Vol. 60 No. 33

Interferometric Sensor For Characterizing Material, Aristide Dogariu

UCF Patents

An integrated optical sensor, using low coherence interferometry, is capable of determining analyte concentration in a material sample based on absorption, scattering and polarization. The sensor includes one or more light collectors, with each collector having a separation distance from the region where the sample is illuminated by the source. The light backscattered from the sample is combined with reference arm light at the same optical path length for each light collector. The intensity of interference may be correlated with the concentration of an analyte in the material, for example the glucose concentration in a turbid medium like skin. The …

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• Department of Biology encourages holiday shoppers and hosts to think “green”

A Developmental Cycle Masks Output From The Circadian Oscillator Under Conditions Of Choline Deficiency In Neurospora, Mi Shi, Luis F. Larrondo, Jennifer J. Loros, Jay C. Dunlap

Dartmouth Scholarship

In Neurospora, metabolic oscillators coexist with the circadian transcriptional/translational feedback loop governed by the FRQ (Frequency) and WC (White Collar) proteins. One of these, a choline deficiency oscillator (CDO) observed in chol-1 mutants grown under choline starvation, drives an uncompensated long-period developmental cycle ( approximately 60-120 h). To assess possible contributions of this metabolic oscillator to the circadian system, molecular and physiological rhythms were followed in liquid culture under choline starvation, but these only confirmed that an oscillator with a normal circadian period length can run under choline starvation. This finding suggested that long-period developmental cycles elicited by nutritional stress …

Cosolvent Effects On The Reductive Dechlorination Of Tetrachloroethylene Catalyzed By Iron Tetraphenyl Porphyrin Chloride, Lavanya Ramasubramanian

All Theses

Abiotic electron transfer mediated reductive dechlorination reactions have been studied extensively in the past decade. Porphyrins and metalloporphyrins are common electron transfer mediators used. Past studies have shown that some metalloporphyrins play a key role in increasing the rate of reaction in the presence of cosolvents. There have also been suggestions that organic cosolvents enhance the rate of reduction by increasing the solubility of metalloporphyrins.
The primary objective of this project was to examine the effect of cosolvents on the metalloporphyrin-catalyzed reductive dechlorination of tetrachloroethylene (PCE). Subsequently, experiments were also conducted to test the hypothesis that metalloporphyrin solubility is linked …

Woody Invasive Plant Species Occurrence And Abundance As, Jyoti Patnaik

All Theses

The spread of invasive plants is one of the most challenging ecological problems in the 21st century, causing a $35 billion loss per year to the economy in the United states alone. More than 85% of woody invasive species were introduced originally for ornamental and landscape use. As a result, over the last few decades, perennial woody invaders have appeared in fence rows, rights-of-way, old fields, understories, and the canopies of eastern forests of the United States. Besides the information about the geographical distribution, general biological characteristics, and response to herbicides, very little information is available on the occurrence and …

Risk Characterization For Boron And Aquatic Plants And Animals, Basma Damiri

All Theses

In aqueous mixtures, boron can be toxic to plants or animals at relatively low concentrations. Boron may occur at concentrations that can pose risk to plants used in constructed wetland treatment systems designed to treat constituents of concerned in a complex matrix such as flue gas desulfurization water and boron may adversely affect survival, growth, and consequently, plant performance. The three major objectives of this research are: 1) to measure responses of Typha latifolia (seed germination and root and shoot elongation) and Schoenoplectus californicus early seedlings (survival, and shoot and root elongation) to aqueous exposures of boron in diluted FGD …

Leisure Constraints: Multiple Hileararchy Stratification Perspectives , Yunjin Tae

All Theses

The disadvantaged groups (elderly, gender, minorities, and individuals of lower SES) suffer from inequality of leisure participation. This study explores the theoretical frameworks of multiple hierarchy stratification in order to better understand the perceived constraints of leisure activities according to socio-demographic variables and how single and multiple statuses influence an individual's participation in leisure activities.
This study explores the relationship between leisure constraints and socio-demographic variables using cross tabulation, and investigate net effects of socio-demographic variables and combined effects of socio-demographic variables in two different types of leisure activities using binary regression.
The findings suggest that the disadvantaged groups have …

Importance And Availability Of Content And Communication Skills Among Entry-Level Interpretive Naturalists, Jonathan Ivey

All Theses

Interpretation seeks to help visitors to make intellectual and emotional connections between themselves and park resources through a communication process. To accomplish this goal, interpreters must be intimately knowledgeable of park resources as well as excellent communicators. The details of what types of knowledge and communication skills are most important to interpretive naturalists have not been formally documented. Likewise, little is formally known about the availability of each skill in pools of entry-level applicants for interpretive positions. This study documented the varying importance and availability of content and communication skills for entry-level interpretive naturalists, based on the perceptions of experienced …

Cal Poly Has 675 New Alumni Thanks To December Graduation Ceremonies, Public Affairs Office

Press Releases

No abstract provided.

Minutes December 10, 2007

Minutes

No abstract provided.

An Economic Model For Bioprospecting Contracts, Helen Ding, Paulo Nunes, Laura Onofri

Fondazione Eni Enrico Mattei Working Papers

This paper explores the use of a micro-economic model to analyse the provisions and parties of bioprospecting contracts. It focuses on the pharmaceutical industry as the representative biodiversity buyer, presenting an original theoretical framework that explains the main contract characteristics or stylised facts. Against this background, it considers the main contractors involved in these private contracts, i.e. biodiversity sellers and biodiversity buyers, analysing both the magnitude and distribution of the respective payoffs. Particular attention is devoted to the different, mixed impacts of bioprospecting contracts and patenting on social welfare. The positive welfare impacts delivered by bioprospecting contracts are associated with …

Network-Constrained Regularization And Variable Selection For Analysis Of Genomic Data, Caiyan Li, Hongzhe Li

UPenn Biostatistics Working Papers

Graphs or networks are common ways of depicting information. In biology in particular, many different biological processes are represented by graphs, such as regulatory networks or metabolic pathways. This kind of {\it a priori} information gathered over many years of biomedical research is a useful supplement to the standard numerical genomic data such as microarray gene expression data. How to incorporate information encoded by the known biological networks or graphs into analysis of numerical data raises interesting statistical challenges. In this paper, we introduce a network-constrained regularization procedure for linear regression analysis in order to incorporate the information from these …

12/10/2007 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/10/2007. Scroll down to see the names and obituary description.

12/10/2007 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/10/2007. Scroll down to see the names and obituary description.

The Statesman, V. 51, I. 26, Stony Brook University

Stony Brook Statesman-Sucolian

v. 51, i. 26

Ua35/11 Arête December 2007, Honors College

Arête: Honors College at WKU Newsletter

No abstract provided.

Faculty Senate Executive Committee Agenda, December 10, 2007, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• Council on Teacher Education Report
• Retention and FYE Report
• Scholarship Advisory Board Report
• BFW Items
• Conflict of Interest Recommendations
• LEEDS Certification
• Course Evaluation Form
• Faculty Forum Attendance
• Salary Compression

The Murray Ledger And Times, December 10, 2007, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Evaluation Of Human Prolactin, Its Antagonist, And Antagonist-Based Fusion Proteins As Chemopreventative And Therapeutic Agents, Seth Tomblyn

All Dissertations

Cancer is a collection of diseases with many different manifestations and is the second leading cause of death in the United States. Breast cancer accounts for nearly one third of cancer diagnosis in women. Prolactin (PRL) functions as a lactogen and as a mammary gland differentiation factor. PRL acts in an autocrine/paracrine manner within the mammary gland and in breast tumors which implies PRL may be involved in breast cancer progression. This is corroborated by the PRLR over-expression in breast cancer cells lines and the majority of patient biopsies. These reasons make PRL and PRLR attractive targets for breast cancer …

Constructed Wetlands For The Landscape Nursery Industry: Nutrient Assimilation And Removal, Sarah White

All Dissertations

Runoff from nursery operations is considered a potential non-point source contamination. Water quality and quantity are quickly becoming important factors that drive management practices at these facilities. Constructed wetland systems (CWS) are a management tool that can be used by nursery operations to improve water quality both for recycling within nursery production areas and for eventual release from nursery production areas into surrounding surface waters. The overall goal of this research was to optimize nutrient removal efficiencies in CWS. To accomplish this goal, I characterized the following: (1) the P sorption and desorption capacity of several substrates; (2) the effect …

The Daily Egyptian, December 10, 2007, Daily Egyptian Staff

December 2007

No abstract provided.

The Enabling Potential Of Losses In Later Life: Linking Constraints To Selective Optimization With Compensation, Begum Aybar-Damali

All Dissertations

A substantial literature describes factors that prevent people from participating in and enjoying leisure and recreation activities. These factors have often been regarded as negative and helping individuals use strategies to maintain participation has been advised. The primary purpose of this study was to explore whether losses catalyzed selective optimization of resources. This exploratory research investigated the relationship among (1) life satisfaction, (2) change in leisure behavior, (3) life management strategies of selection, optimization, and compensation, (4) enhancement outcomes, and (5) leisure satisfaction. The participants of the study were recruited from older adults who attended activities and classes provided by …

Provisioning And Prey Quality In Brown Pelicans (Pelecanus Occidentalis) In Charleston Harbor, South Carolina, Elena Sachs

All Theses

I examined parent and nestling behavior during early chick rearing in Brown Pelicans (Pelecanus occidentalis) nesting at a colony in Charleston Harbor, South Carolina during the 2006 breeding season. There were significant differences in the frequency of feeding, attendance, and chick aggression according to chick age, although the pattern differed among behaviors. The rate of adult feeding, chick feeding and adult attendance all decreased with chick age while chick aggressive behavior peaked when chicks were ca. 21 d post-hatch. I found that nests with at least one juvenile parent had a lower average clutch size, hatch rate, and number of …

Enhancing The Ability Of Panicum Virgatum To Survive Flooding And Its Effects On Soil Activity When Used For Lakeshore Stabilization, Lee Edwards

All Dissertations

Reservoirs in upstate South Carolina are subject to erosion and vegetation has been placed to help stabilize banks, but soils are nutrient-poor and have high bulk densities. Panicum virgatum L. (switchgrass) has been planted in several sites, and it is hypothesized that over time, changes in microbial activity and soil quality will occur in response to the planting. As vegetated sites aged, acid phosphomonoesterase, nitrate reductase, and dehydrogenase activity increased. Low values of nitrogen fixation and substrate-induced respiration were measured at all sites with no statistical differences between sites. Fatty acids indicative of Gram negative bacteria were found in vegetated …