Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

2004

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 361 - 390 of 2687

Full-Text Articles in Life Sciences

Description Of A Multilevel Cryptic New Species Of Phyciodes (Nymphalidae: Melitaeinae) From The Southern Appalachian Mountains, Ronald R. Gatrelle Sep 2004

Description Of A Multilevel Cryptic New Species Of Phyciodes (Nymphalidae: Melitaeinae) From The Southern Appalachian Mountains, Ronald R. Gatrelle

The Taxonomic Report of the International Lepidoptera Survey

Phyciodes incognitus is described as a new species from the medium to high elevation hardwood forests of the southern Appalachian Mountains, type locality: Duncan Ridge Road, 3,700 ft., Union County, Georgia, United States. Phyciodes incognitus is verified from four colonies in Union County, Georgia, United States, and Clay and Macon counties, North Carolina, United States. It is projected to range, in suitable habitat, as far north as montane Pennsylvania, United States (indicated by photos). Phyciodes incognitus possesses a unique set of character traits that are virtually identical to both P. tharos and P. cocyta but at differing character …


Improved Phase Modulation For An En-Face Scanning Three-Dimensional Optical Coherence Microscope, Barbara M. Hoeling, Mary E. Peter, Daniel C. Petersen, Richard C. Haskell Sep 2004

Improved Phase Modulation For An En-Face Scanning Three-Dimensional Optical Coherence Microscope, Barbara M. Hoeling, Mary E. Peter, Daniel C. Petersen, Richard C. Haskell

All HMC Faculty Publications and Research

We have previously described an inexpensive method for modulating the interferometer of an en-face scanning, focus-tracking, three-dimensional optical coherence microscope (OCM). In this OCM design, a reference mirror is mounted on a piezoelectric stack driven at a resonance frequency of about 100 kHz. We perform a partial discrete Fourier transform of the digitally sampled output fringe signal. In the original design, we obtained the amplitude of the backscattered light by summing the powers in the fundamental (1ω) and first harmonic (2ω) of the modulation frequency. We used the particular piezoamplitude that eliminates the effects of interferometer phase drift. However, as …


Eleanor Pratt, Eleanor Pratt, Institute Of Child Nutrition. Child Nutrition Archives. Sep 2004

Eleanor Pratt, Eleanor Pratt, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Eleanor Pratt began her career in the child nutrition profession as food service director for Clarksville, Tennessee, schools in 1957. With a master’s degree in Home Economics she went on in 1960 to a career with the USDA Southeast Regional Office as Home Economist. She retired thirty-four years later in 1994. Ms. Pratt died at the age of 88 on August 18, 2014.


Mary Nix, Mary Nix, Institute Of Child Nutrition. Child Nutrition Archives. Sep 2004

Mary Nix, Mary Nix, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Mary Nix grew up in Gordon County, Georgia during the late 1930s and 1940s. She started work in the School Lunch Program in the ninth grade, washing pots and pans at her high school. After graduating she went on to become School Food Service Supervisor for Gordon County, and later, after graduating from the University of Georgia in 1969, she became Bartow County’s first School Food Service Director. She worked for Georgia’s Department of Education for a number of years and then served as Assistant Director of School Food Services in Cobb County Georgia, where she resides. Nix was President …


Lucille Barnett, Lucille Barnett, Institute Of Child Nutrition. Child Nutrition Archives. Sep 2004

Lucille Barnett, Lucille Barnett, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Lucille Barnett grew up in Union County, South Carolina, in the 1930s and 40s. She earned a Bachelor of Science degree from Lander University in Greenwood, South Carolina. She served as Supervisor of County and City School Food Service in Spartanburg, South Carolina, for thirty-three years. From 1973-1974 she served as American School Food Service Association President. She resides in South Carolina. See also the Lucille Barnett Photograph Collection and the Lucille Barnett Manuscript Collection.


Waccnes Containing Bovine Herpe Svirus 1 Attenuated By Mutation In Latency-Related Gene, Clinton J. Jones Sep 2004

Waccnes Containing Bovine Herpe Svirus 1 Attenuated By Mutation In Latency-Related Gene, Clinton J. Jones

School of Veterinary and Biomedical Sciences: Faculty Publications

Vaccines for pathogenic Strains of bovine herpesvirus 1 (BHV-1) which are based on attenuated BHV-1 having a mutation in the latency-related gene are provided. Live, attenuated vaccines are also provided which express anti gens from other viral or bacterial pathogens and thus form the basis of a variety of vaccines.


Ampelopsis Cordata Michx., John E. Ebinger, Loy R. Phillippe Sep 2004

Ampelopsis Cordata Michx., John E. Ebinger, Loy R. Phillippe

Specimens by Name

No abstract provided.


Red Rock Desert Learning Center Core Group Meeting: September 21, 2004, Red Rock Desert Learning Center Sep 2004

Red Rock Desert Learning Center Core Group Meeting: September 21, 2004, Red Rock Desert Learning Center

Reports (RRLC)

  1. Introductions (5 min.)
  2. Approval of Minutes from August 17 Meeting (5 minutes)
  3. Potential Tie-in with City of Las Vegas New Directions YouthArts Program –
    Markus Tracy (20 min.)
  4. Presentation of Education in the Environment Curriculum Matrix and correlation to
    RRDLC curriculum development – Jeanne Klockow (30 min.)
  5. Discussion of Policy-making Board for the Center – Michael Reiland (15 min.)
  6. Discussion of Observatory Location – Michael Reiland (25 min.)
  7. Standing Reports (20 minutes)
    A. Line and Space Architects Update – Les Wallach/Henry Tom
    B. UNLV/CESU Update – Nancy Flagg
    C. RRCNCA Capital Improvements Update – BLM
  8. Committee Reports (10 min.)
    A. …


Smokejumper Obituary: Devoe, Albert H. (Cave Junction 1947), National Smokejumper Association Sep 2004

Smokejumper Obituary: Devoe, Albert H. (Cave Junction 1947), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Vivian Pilant, Vivian Pilant, Institute Of Child Nutrition. Child Nutrition Archives. Sep 2004

Vivian Pilant, Vivian Pilant, Institute Of Child Nutrition. Child Nutrition Archives.

Oral History Project (all interviews)

Born in 1941, Vivian Pilant grew up in Martin, Tennessee. She holds a bachelor’s degree in Home Economics from the University of Tennessee at Martin, a master’s degree in Institution Management and a doctorate in Nutrition from the University of Tennessee, Knoxville. She began her career as Director of School Food Services and Nutrition Education for Weakley County, Tennessee. In August 1970, she went to work as a Coordinator of School Food Services in Jacksonville, Duval County, Florida, where she remained for five years. In 1975, Dr. Pilant began work with the South Carolina Department of Education Office of School …


Putting Genes Into Genetic Coefficients, P. Stephen Baenziger, Gregory S. Mcmaster, Wallace Wilhelm, Albert Weiss, Cynthia J. Hays Sep 2004

Putting Genes Into Genetic Coefficients, P. Stephen Baenziger, Gregory S. Mcmaster, Wallace Wilhelm, Albert Weiss, Cynthia J. Hays

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Plant parameters are critical inputs in crop simulation models and allow a general set of algorithms to represent features of specific cultivars. A subset of plant parameters is often referred to as ‘‘genetic coefficients’’. However, these genetic coefficients are developed from phenotypic observations, usually have a weak genetic basis, and are at best ‘‘genotypic’’ coefficients because they consider the genotype from a very integrative perspective and likely include some impact of environment on the trait or characteristic described. With increased understanding of crop genomes, we believe models can be improved by incorporating genetic coefficients that accurately describe the action of …


Preserved Antigenicity Of Hiv-1 P24 Produced And Purified In High Yields From Plants Inoculated With A Tobacco Mosaic Virus (Tmv)-Derived Vector, D. M. Pérez-Filgueira, B. P. Brayfield, S. Phiri, M. V. Borca, Charles Wood, Thomas Jack Morris Sep 2004

Preserved Antigenicity Of Hiv-1 P24 Produced And Purified In High Yields From Plants Inoculated With A Tobacco Mosaic Virus (Tmv)-Derived Vector, D. M. Pérez-Filgueira, B. P. Brayfield, S. Phiri, M. V. Borca, Charles Wood, Thomas Jack Morris

Papers in Virology

Production of structural proteins from foot-and-mouth disease virus (FMDV) and bovine herpes virus (BHV-1) in Nicotiana benthamiana through the use of a tobacco mosaic virus-based vector (TMV-30B) has been reported previously. The development of the TMV-30B-HISc vector, a new version that adds a C-terminal histidine (His) sequence to the foreign protein expressed is described. Coding sequences from the FMDV VPl protein and the core protein, p24, from a clade C HIV-1 isolate from Zambia were cloned into the new vector and infective RNAs were generated for each construct to inoculate N. benthamiana plants. His-tagged proteins were purified from inoculated leaves …


Rapid And Convenient Method For Preparing Masters For Microcontact Printing With 1–12 Μm Features, Lloyd W. Zilch, Ghaleb A. Husseini, Yit-Yian Lua, Michael V. Lee, Kevin R. Gertsch, Bennion R. Cannon, Robert M. Perry, Eric T. Sevy, Matthew C. Asplund, Adam T. Woolley, Matthew R. Linford Sep 2004

Rapid And Convenient Method For Preparing Masters For Microcontact Printing With 1–12 Μm Features, Lloyd W. Zilch, Ghaleb A. Husseini, Yit-Yian Lua, Michael V. Lee, Kevin R. Gertsch, Bennion R. Cannon, Robert M. Perry, Eric T. Sevy, Matthew C. Asplund, Adam T. Woolley, Matthew R. Linford

Faculty Publications

Mechanical scribing can be employed to create surfaces with recessed features. Through replica molding elastomeric copies of these scribed surfaces are created that function as stamps for microcontact printing. It is shown that this new method for creating masters for microcontact printing can be performed with a computer-controlled milling machine (CNC), making this method particularly straightforward and accessible to a large technical community that does not need to work in a particle free environment. Thus, no clean room, or other specialized equipment is required, as is commonly needed to prepare masters. Time-of-flight secondary ion mass spectrometry confirms surface pattering by …


Smokejumper Obituary: Mcdonald, Steve (Associate 0000), National Smokejumper Association Sep 2004

Smokejumper Obituary: Mcdonald, Steve (Associate 0000), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Faurot, Richard A. (Missoula 1952), National Smokejumper Association Sep 2004

Smokejumper Obituary: Faurot, Richard A. (Missoula 1952), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Effect Of Misreported Family History On Mendelian Mutation Prediction Models, Hormuzd A. Katki Sep 2004

Effect Of Misreported Family History On Mendelian Mutation Prediction Models, Hormuzd A. Katki

Johns Hopkins University, Dept. of Biostatistics Working Papers

People with familial history of disease often consult with genetic counselors about their chance of carrying mutations that increase disease risk. To aid them, genetic counselors use Mendelian models that predict whether the person carries deleterious mutations based on their reported family history. Such models rely on accurate reporting of each member's diagnosis and age of diagnosis, but this information may be inaccurate. Commonly encountered errors in family history can significantly distort predictions, and thus can alter the clinical management of people undergoing counseling, screening, or genetic testing. We derive general results about the distortion in the carrier probability estimate …


Evidence Of Linear Lattice Expansion And Covalency Enhancement In Rutile Tio2 Nanocrystals, Guangshe Li, Juliana Boerio-Goates, Brian F. Woodfield, Liping Li Sep 2004

Evidence Of Linear Lattice Expansion And Covalency Enhancement In Rutile Tio2 Nanocrystals, Guangshe Li, Juliana Boerio-Goates, Brian F. Woodfield, Liping Li

Faculty Publications

Lattice variations and bonding characteristics in rutile TiO2 nanocrystals were examined by x-ray diffraction and x-ray photoelectron spectroscopy. With a reduction in the physical dimensions, rutile TiO2 nanocrystals show a linear lattice expansion and an anomalous covalency enhancement in apparent contradiction to the ionicity increase in BaTiO3 and CuO nanocrystals as reported recently by S. Tsunekawa et al. [Phys. Rev. Lett. 2000, 85, 3440] and V. R. Palkar et al. [Phys. Rev. B 1996, 53, 2167]. A surface defect dipole model is proposed to explain these physical phenomena in terms of the strong interactions among the surface dipoles that produce …


Watershed Scale Impacts Of Buffers And Upland Conservation Practices On Agrochemical Delivery To Streams, Thomas G. Franti, Dean E. Eisenhauer, Mary Carla Mccullough, L. M. Stahr, Mike Dosskey, D. D. Snow, Roy F. Spalding, Alan L. Boldt Sep 2004

Watershed Scale Impacts Of Buffers And Upland Conservation Practices On Agrochemical Delivery To Streams, Thomas G. Franti, Dean E. Eisenhauer, Mary Carla Mccullough, L. M. Stahr, Mike Dosskey, D. D. Snow, Roy F. Spalding, Alan L. Boldt

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Conservation buffers are designed to reduce sediment and agrichemical runoff to surface water. Much is known about plot and field scale effectiveness of buffers; but little is known about their watershed scale impact. Our objective was to estimate the watershed scale impact of grass buffers by comparing sediment and agrichemical losses from two adjacent 141-165 hectare watersheds, one with conservation buffers and one without. Rainfall derived runoff events from 2002-2003 were monitored for water runoff, TSS, phosphorous and atrazine loss. A conservation-watershed included 0.8 km of grass buffers and 0.8 km of riparian forest buffer, ridge-tilled corn, corn-beans-alfalfa rotation, terraces …


Channel Aggradation By Beaver Dams On A Small Agricultural Stream In Eastern Nebraska, M. C. Mccullough, J. L. Harper, D. E. Eisenhauer, M. G. Dosskey Sep 2004

Channel Aggradation By Beaver Dams On A Small Agricultural Stream In Eastern Nebraska, M. C. Mccullough, J. L. Harper, D. E. Eisenhauer, M. G. Dosskey

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

agricultural area of eastern Nebraska. A topographic survey was conducted of a reach of Little Muddy Creek where beaver are known to have been building dams for twelve years. Results indicate that over this time period the thalweg elevation has aggraded an average of 0.65 m by trapping 1730 t of sediment in the pools behind dams. Beaver may provide a feasible solution to channel degradation problems in this region.


Biology Department Publications: 2004, Sam Lindgren Sep 2004

Biology Department Publications: 2004, Sam Lindgren

Biology Department Bibliographies

This document is a noncomprehensive list of publications made by graduate students, post-doctoral researchers, and faculty members in the Biology Department in 2004. It indexes those publications available through major databases, and serves as an archival record of the Department’s robust scholarly contributions.


In Vitro Expression Of Full-Length And Truncated Bovine Respiratory Syncytial Virus G Proteins And Their Antibody Responses In Balb/C Mice, Ryan P. Brady, Christina L. Topliff, Clayton L. Kelling Sep 2004

In Vitro Expression Of Full-Length And Truncated Bovine Respiratory Syncytial Virus G Proteins And Their Antibody Responses In Balb/C Mice, Ryan P. Brady, Christina L. Topliff, Clayton L. Kelling

Nebraska Center for Virology: Faculty Publications

Bovine respiratory syncytial virus (BRSV) is a primary cause of lower respiratory tract disease in calves. Protection is incomplete following vaccination or natural infection, as re-infections are common. The objectives of this study were to create plasmid DNA constructs encoding the full-length, secreted, or conserved region of the BRSV G glycoprotein, and to compare and evaluate their expression in cell culture and potential to induce antibody responses in BALB/c mice. Transfection of COS-7 cells with plasmid DNA resulted in expression of the BRSV G region from each of the plasmid DNA constructs. Following inoculation of BALB/c mice with plasmid DNA, …


Effect Of A Juvenile Hormone Analogue On Lipid Metabolism In A Wing-Polymorphic Cricket: Implications For The Endocrine-Biochemical Bases Of Life-History Trade-Offs, Anthony J. Zera, Zhangwu Zhao Sep 2004

Effect Of A Juvenile Hormone Analogue On Lipid Metabolism In A Wing-Polymorphic Cricket: Implications For The Endocrine-Biochemical Bases Of Life-History Trade-Offs, Anthony J. Zera, Zhangwu Zhao

Anthony Zera Publications

The wing-polymorphic cricket, Gryllus firmus, has a flight-capable morph (LW[f]: long winged with functional flight muscles) and a flightless morph (SW: short winged with reduced nonfunctional flight muscles) that differ genetically in many aspects of lipid metabolism. To determine whether these differences result from genetically based alterations in endocrine regulation, the juvenile hormone mimic, methoprene, was applied to the LW(f) morph. This hormone manipulation converted the LW(f) morph into a SW phenocopy with respect to all aspects of lipid metabolism studied; that is, methoprene application decreased in vivo biosynthesis of total lipid and triglyceride, increased absolute and relative biosynthesis of …


Education In The Environment Partnership, Public Lands Institute Sep 2004

Education In The Environment Partnership, Public Lands Institute

Presentations (PLI Education)

  • Update on Oliver Ranch
  • Update on Forever Earth
  • Update on WOW on the Water


Smokejumper Obituary: Sharp, Gary Fain (Cave Junction 1967), National Smokejumper Association Sep 2004

Smokejumper Obituary: Sharp, Gary Fain (Cave Junction 1967), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Spiranthes Ovalis Var. Erostellata Catling, Gordon C. Tucker Sep 2004

Spiranthes Ovalis Var. Erostellata Catling, Gordon C. Tucker

Specimens by Name

No abstract provided.


Human Stick Balancing: Tuning Lèvy Flights To Improve Balance Control, Juan Luis Cabrera, John Milton Sep 2004

Human Stick Balancing: Tuning Lèvy Flights To Improve Balance Control, Juan Luis Cabrera, John Milton

WM Keck Science Faculty Papers

State-dependent, or parametric, noise is an essential component of the neural control mechanism for stick balancing at the fingertip. High-speed motion analysis in three dimensions demonstrates that the controlling movements made by the fingertip during stick balancing can be described by a Lévy flight. The Lévy index, , is approximately 0.9; a value close to optimal for a random search. With increased skill, the index does not change. However, the tails of the Lévy distribution become broader. These observations suggest a Lévy flight that is truncated by the properties of the nervous and musculoskeletal system; the truncation decreasing as skill …


The Muscadine Experience: Adding Value To Enhance Profits, Justin R. Morris, Pamela L. Brady Sep 2004

The Muscadine Experience: Adding Value To Enhance Profits, Justin R. Morris, Pamela L. Brady

AAES Research Reports and Research Bulletins

The University of Arkansas Division of Agriculture received a grant from the USDA’s Initiative for Future Agriculture and Food Systems (IFAFS) program. The purpose was to help small- and medium-sized farmers and entrepreneurs become more profitable and therefore add stability to the family farm. One approach to doing this is to investigate opportunities to enhance profits by adding value to traditional raw products.


Logic Programs, Iterated Function Systems, And Recurrent Radial Basis Function Networks, Sebastian Bader, Pascal Hitzler Sep 2004

Logic Programs, Iterated Function Systems, And Recurrent Radial Basis Function Networks, Sebastian Bader, Pascal Hitzler

Computer Science and Engineering Faculty Publications

Graphs of the single-step operator for first-order logic programs—displayed in the real plane—exhibit self-similar structures known from topological dynamics, i.e., they appear to be fractals, or more precisely, attractors of iterated function systems. We show that this observation can be made mathematically precise. In particular, we give conditions which ensure that those graphs coincide with attractors of suitably chosen iterated function systems, and conditions which allow the approximation of such graphs by iterated function systems or by fractal interpolation. Since iterated function systems can easily be encoded using recurrent radial basis function networks, we eventually obtain connectionist systems which …


Wild Justice And Fair Play: Cooperation, Forgiveness, And Morality In Animals, Marc Bekoff Sep 2004

Wild Justice And Fair Play: Cooperation, Forgiveness, And Morality In Animals, Marc Bekoff

Ethology Collection

In this paper I argue that we can learn much about ‘wild justice’ and the evolutionary origins of social morality – behaving fairly – by studying social play behavior in group-living animals, and that interdisciplinary cooperation will help immensely. In our efforts to learn more about the evolution of morality we need to broaden our comparative research to include animals other than non-human primates. If one is a good Darwinian, it is premature to claim that only humans can be empathic and moral beings. By asking the question ‘What is it like to be another animal?’ we can discover rules …


Identification And Inactivation Of Genetic Loci Involved With Lactobacillus Acidophilus Acid Tolerance, M. Andrea Azcarate-Peril, Eric Altermann, Rebecca L. Hoover- Fitzula, Raul J. Cano, Todd R. Klaenhammer Sep 2004

Identification And Inactivation Of Genetic Loci Involved With Lactobacillus Acidophilus Acid Tolerance, M. Andrea Azcarate-Peril, Eric Altermann, Rebecca L. Hoover- Fitzula, Raul J. Cano, Todd R. Klaenhammer

Biological Sciences

Amino acid decarboxylation-antiporter reactions are one of themost important systems for maintaining intracellular pH betweenphysiological limits under acid stress. We analyzed the Lactobacillusacidophilus NCFM complete genome sequence and selected fouropen reading frames with similarities to genes involved withdecarboxylation reactions involved in acid tolerance in severalmicroorganisms. Putative genes encoding an ornithine decarboxylase,an amino acid permease, a glutamate -aminobutyrate antiporter,and a transcriptional regulator were disrupted by insertionalinactivation. The ability of L. acidophilus to survive low-pHconditions, such as those encountered in the stomach or fermenteddairy foods, was investigated and compared to the abilitiesof early- and late-stationary-phase cells of the mutants bychallenging them with …