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2000

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Articles 271 - 300 of 2418

Full-Text Articles in Life Sciences

Linear And Nonlinear Measures Predict Swimming In The Leech, C. J. Cellucci, Peter Brodfuehrer, H. Acera-Pozzi, E. Dobrovolny, J. Engler, R. Los, R. Thompson, Alfonso M. Albano Oct 2000

Linear And Nonlinear Measures Predict Swimming In The Leech, C. J. Cellucci, Peter Brodfuehrer, H. Acera-Pozzi, E. Dobrovolny, J. Engler, R. Los, R. Thompson, Alfonso M. Albano

Biology Faculty Research and Scholarship

Stimulation of a trigger interneuron of an isolated nerve cord preparation of the medicinal leech, Hirudo medicinalis, sometimes leads to swimming; sometimes it does not. We investigate signals transmitted in the ventral cord of the leech after stimulation and seek quantitative measures that would make it possible to distinguish signals that predict swimming from those that do not. We find that a number of linear as well as nonlinear measures provide statistically significant distinctions between the two kinds of signals. The linear measures are the time dependence of (i) the standard deviation and (ii) the autocorrelation function at a small …


Multiple Spatial Scale Assessment Of Coral Reef And Hard-Bottom Community Structure In The Florida Keys National Marine Sanctuary, Steven Miller, Dione W. Swanson, Mark Chiappone Oct 2000

Multiple Spatial Scale Assessment Of Coral Reef And Hard-Bottom Community Structure In The Florida Keys National Marine Sanctuary, Steven Miller, Dione W. Swanson, Mark Chiappone

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

The zoning plan for the Florida Keys National Marine Sanctuary (FKNMS) established 23 relatively small no-fishing zones distributed mostly along the offshore reef tract in 1997. In 1999, a two-stage, stratified random sampling design based on the proportion of coral reef and hard-bottom types within the FKNMS was conducted. Our study focused on differences in coverage, density, and condition of benthic organisms with respect to habitat type, regional variations, and differences between no-fishing zones and reference sites at 80 locations spanning 200 km. Most variables exhibited significant spatial differences by habitat type or between individual no-fishing zones and reference sites …


Facilitation May Buffer Competitive Effects: Indirect And Diffuse Interactions Among Salt Marsh Plants, Ragan M. Callaway, Steven C. Pennings Oct 2000

Facilitation May Buffer Competitive Effects: Indirect And Diffuse Interactions Among Salt Marsh Plants, Ragan M. Callaway, Steven C. Pennings

Biological Sciences Faculty Publications

Direct interactions among plant species may be highly modified by indirect or diffuse effects within a multispecies community. We investigated the direct and diffuse effects of two salt marsh perennials, Monanthechloe littoralis and Arthrocnemum subterminale, on winter annuals and the perennial herb Limonium californicum in a salt marsh in central California. In permanent plots, Monanthechloe had expanded substantially in the upper marsh over the past 13 yr, while Arthrocnemum and all annual species had decreased. These dynamics suggest that Monanthechloe may directly outcompete most other species in the upper marsh. In contrast, Arthrocnemum is known to facilitate some annual species. …


Ua66/5 Newsletter, Wku Agriculture Oct 2000

Ua66/5 Newsletter, Wku Agriculture

WKU Administration Documents

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.


Center For Grassland Studies Newsletter, Fall 2000, Volume 6, No. 4 Oct 2000

Center For Grassland Studies Newsletter, Fall 2000, Volume 6, No. 4

Center for Grassland Studies: Newsletters

Contents:

UNL Research Towards Biological Control of Turfgrass Diseases – Part I by Gary Yuen, Department of Plant Pathology, UNL

Prairie Restoration Cooperative by Gerry Steinauer, Nebraska Game and Parks Commission

CGS Seminars Available on Video

Annual Forage Production and Quality Trials

by Burt Weichenthal (Department of Animal Science) and David Baltensperger (Department of Agronomy) at Panhandle Research & Extension Center, and Kenneth Vogel, USDA-ARS and Department of Agronomy, UNL


Ard News October 2000 Oct 2000

Ard News October 2000

Agricultural Research Division: News and Annual Reports

CONTENTS:
Comments from the Dean
New Guidelines for Multistate Research Activity
Initiative far Future Agriculture and Food Systems (IFAFS)
Grants and Contracts Received August and September 2000
Proposals Submitted for Federal Grants
Technology Transfer Website
New and Revised Projects
ARD Administered Grant and Awards Programs
ARD Out-of-State Travel Policy Professional Society Meetings
Travel to Multi-State Research Committee Meetings


American Society Of Parasitologists Newsletter, V. 22, No. 3, September 2000, Scott Lyell Gardner Oct 2000

American Society Of Parasitologists Newsletter, V. 22, No. 3, September 2000, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

An issue of the American Society of Parasitologists' quarterly newsletter, also called the Journal of Parasitology Newsletter.


Nebline, October 2000 Oct 2000

Nebline, October 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Two Kinds of People: Character Counts!
Viburnums in the Landscape
Storing Vegetables
Garden Cleanup
What is the Best Termite Control: Baits or Barriers?
Woolly Bears
Watch for Fall Invaders
Head Lice Information in Spanish!
Fall Is a Good Time to Control Problem Weeds
Making Financial Plans Now Will Help the Future of Farms and Ranches
ARPA Bill Increases Crop Insurance Subsidies
Making the “Right” Management Choices
Bait Stations for Rats and Mice
Plant Seeds Not Seedlings
Large Round Bale Storage
Fall Preparations – Asparagus, Cucurbits
Poultry Pests
Get Active! Pyramid
Healthy Eating: Apple Pizza
Healthy Halloween Treats
Kids in the …


Air Pollution Damage From An Aluminum Sulfate Manufacturing Firm In Mambugan Antipolo City, Philippines, Jhoana Virtucio Alcalde Oct 2000

Air Pollution Damage From An Aluminum Sulfate Manufacturing Firm In Mambugan Antipolo City, Philippines, Jhoana Virtucio Alcalde

Graduate Student's Output

No abstract provided.


Chemical And Biological Properties Of A Purified Lectin From The Seeds Of Antipolo Tree (Artocarpus Blancoi Elm. Merr.), Bethsaida M. Alpante Oct 2000

Chemical And Biological Properties Of A Purified Lectin From The Seeds Of Antipolo Tree (Artocarpus Blancoi Elm. Merr.), Bethsaida M. Alpante

Graduate Student's Output

No abstract provided.


2001 Winter Wheat Budgets For South Dakota, Department Of Economics Oct 2000

2001 Winter Wheat Budgets For South Dakota, Department Of Economics

Economics Pamphlet Series (1985-2016)

No abstract provided.


Forage News [2000-10], Department Of Plant And Soil Sciences, University Of Kentucky Oct 2000

Forage News [2000-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

  • Fall Grazing School is On for October 16-18 in Princeton
  • KFGC Awards
  • Statewide Grazing Conference Set for Bowling Green
  • Southern Forages Now Available on the Web
  • Upcoming Events


Hexapod Herald - Vol. 12, No. 4, October 2000 Oct 2000

Hexapod Herald - Vol. 12, No. 4, October 2000

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Fall 2000 ENTO 905 seminars


The Toxicology Of Aluminum In The Brain: A Review, Robert A. Yokel Oct 2000

The Toxicology Of Aluminum In The Brain: A Review, Robert A. Yokel

Pharmaceutical Sciences Faculty Publications

Aluminum is environmentally ubiquitous, providing human exposure. Usual human exposure is primarily dietary. The potential for significant Al absorption from the nasal cavity and direct distribution into the brain should be further investigated. Decreased renal function increases human risk of Al-induced accumulation and toxicity. Brain Al entry from blood may involve transferrin-receptor mediated endocytosis and a more rapid process transporting small molecular weight Al species. There appears to be Al efflux from the brain, probably as Al citrate. There is prolonged retention of a fraction of Al that enters the brain, suggesting the potential for accumulation with repeated exposure. Al …


New Beef Zone - The Potential For Beef And Cattle Industry Expansion In The Western Australian Wheatbelt, Alan Peggs, Andrew Quinn, Jason Kelly Oct 2000

New Beef Zone - The Potential For Beef And Cattle Industry Expansion In The Western Australian Wheatbelt, Alan Peggs, Andrew Quinn, Jason Kelly

Animal production and livestock published reports

Agriculture Western Australia (WA) recently completed a comprehensive analysis of the Western Australian beef and cattle industry entitled, “Rising Above the Herd” (Quin and Manners 1999). A key finding was the need to determine areas where store cattle could be produced competitively in the future. This was in the light of beef production in existing areas such as the South West and western South Coast being “squeezed” out by competition from alternative enterprises. This analysis has been prepared at the request of Agriculture WA to determine the potential for the Wheatbelt to produce store cattle competitively.

The study:

  • embraces a …


Louisiana Agriculture Fall, 2000, Lsu Agcenter Oct 2000

Louisiana Agriculture Fall, 2000, Lsu Agcenter

Louisiana Agriculture

No abstract provided.


Fall 2000, Nsu Oceanographic Center Oct 2000

Fall 2000, Nsu Oceanographic Center

Currents

No abstract provided.


Effects Of Calcium Β-Hmb Supplementation During Training On Markers Of Catabolism, Body Composition, Strength And Sprint Performance, Richard B. Kreider, Maria Pontes Ferreira, Michael Greenwood, M. Wilson, Pamela Grindstaff, Steven Plisk, Jeff Reinardy, Edward Cantler, Anthony L. Amalda Oct 2000

Effects Of Calcium Β-Hmb Supplementation During Training On Markers Of Catabolism, Body Composition, Strength And Sprint Performance, Richard B. Kreider, Maria Pontes Ferreira, Michael Greenwood, M. Wilson, Pamela Grindstaff, Steven Plisk, Jeff Reinardy, Edward Cantler, Anthony L. Amalda

Nutrition and Food Science Faculty Research Publications

Calcium β-hydroxy β-methylbutyrate (HMB) supplementation has been reported to reduce catabolism and promote gains in strength and fat free mass in untrained individuals initiating training. However, the effects of HMB supplementation on strength and body composition alterations during training in athletes is less clear. This study examined the effects of 28-d of calcium HMB supplementation during intense training on markers of catabolism, body composition, strength, and sprint performance. In a double-blind and randomized manner, 28 NCAA division I-A football players were matched-paired and assigned to supplement their diet for 28-d during winter resistance/agility training (~8 hr/wk) with a carbohydrate placebo …


Classes Of Logic Programs Which Possess Unique Supported Models, Anthony K. Seda, Pascal Hitzler Oct 2000

Classes Of Logic Programs Which Possess Unique Supported Models, Anthony K. Seda, Pascal Hitzler

Computer Science and Engineering Faculty Publications

Logic programming is concerned with the use of logic as a programming language. The main manifestation of this computing paradigm is in the various versions of Prolog which are now available, in which computation is viewed as deduction from sets of Horn clauses, although there is also growing interest in the related form known as answer set programming, see [10]. The reference [1] contains a good survey of the growth of logic programming over the last twenty-five years both as a stand-alone programming language and as a software component of large information systems. One advantage a logic program P has …


Varying The Abundance Of O Antigen In Rhizobium Etli And Its Effect On Symbiosis With Phaseolus Vulgaris, K. Dale Noel, Lennart Scott Forsberg, Russell W. Carlson Oct 2000

Varying The Abundance Of O Antigen In Rhizobium Etli And Its Effect On Symbiosis With Phaseolus Vulgaris, K. Dale Noel, Lennart Scott Forsberg, Russell W. Carlson

Biological Sciences Faculty Research and Publications

Judged by migration of its lipopolysaccharide (LPS) in gel electrophoresis, the O antigen of Rhizobium etli mutant strain CE166 was apparently of normal size. However, its LPS sugar composition and staining of the LPS bands after electrophoresis indicated that the proportion of its LPS molecules that possessed O antigen was only 40% of the wild-type value. Its LPS also differed from the wild type by lacking quinovosamine (2-amino-2,6-dideoxyglucose). Both of these defects were due to a single genetic locus carrying a Tn5 insertion. The deficiency in O-antigen amount, but not the absence of quinovosamine, was suppressed by transferring into …


Safety Of Canning Quick Breads, Charlotte Brennand Oct 2000

Safety Of Canning Quick Breads, Charlotte Brennand

All Current Publications

No abstract provided.


Proceedings Of Carrot Conference Australia, Perth, Western Australia, Figaro Natoli, Sam Calameri, Albert Grubelich, Allan Mckay, Elaine Davison, David Ellement Oct 2000

Proceedings Of Carrot Conference Australia, Perth, Western Australia, Figaro Natoli, Sam Calameri, Albert Grubelich, Allan Mckay, Elaine Davison, David Ellement

Conference papers and presentations

No abstract provided.


Atrazine Induction Of Cytochrome P450 In Chironomus Tentans Larvae, Francisca Miota, Blair Siegfried, Michael E. Scharf, Michael J. Lydy Oct 2000

Atrazine Induction Of Cytochrome P450 In Chironomus Tentans Larvae, Francisca Miota, Blair Siegfried, Michael E. Scharf, Michael J. Lydy

Department of Entomology: Faculty Publications

Cytochrome P450-dependent aldrin epoxidation was characterized in third instar larvae of the aquatic midge, Chironomus tentans. Optimal in vitro assay conditions for the epoxidase were pH 7.6 and 31°C. Activity was linear up to 40 min of incubation time and 0.5 mg microsomal protein per incubation. The activity was concentrated in the mic rosomal fraction of whole body homogenates and was NADPH-dependent. The effect of atrazine exposure on aldrin epoxidase was measured to determine if this herbicide induces cytochrome P450-dependent activity. Comparisons of control and atrazine-exposed midges indicated increased epoxidase activity as a result of atrazine exposure, and a …


Induction Of Apoptosis In Human Prostate Cancer Cells By Resveratrol, Gary Zulfikar Morris Oct 2000

Induction Of Apoptosis In Human Prostate Cancer Cells By Resveratrol, Gary Zulfikar Morris

Chemistry & Biochemistry Theses & Dissertations

Recently attention has been brought to trans-resveratrol's {TR) anticancer activity, as determined through a number of cultured cancer cell models. This activity was attributed to TR behaving as an estrogen, and the orientation of TR' s hydroxyl groups. Based on this work it was of interest to determine whether TR would also be toxic in prostate cancer cells; if toxic, did TR induce necrosis or apoptosis in the cells; was it toxic through hormone mediated pathways; and were TR's hydroxyl groups responsible for its biological activity. To this end, cellular viability was assessed in two different prostate cancer cell …


The Effects Of Interest Rate Liberalization On The Supply Of And Demand For Agricultural Credit In The Philippines, Irene B. Binohlan Oct 2000

The Effects Of Interest Rate Liberalization On The Supply Of And Demand For Agricultural Credit In The Philippines, Irene B. Binohlan

Graduate Student's Output

No abstract provided.


Halipegus Eschi N. Sp. (Digenea: Hemiuridae) In Rana Vaillanti From Guanacaste Province, Costa Rica, Derek A. Zelmer, Daniel R. Brooks Oct 2000

Halipegus Eschi N. Sp. (Digenea: Hemiuridae) In Rana Vaillanti From Guanacaste Province, Costa Rica, Derek A. Zelmer, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Halipegus eschi n. sp. is described from the esophagus of Rana vaillanti from Guanacaste Province, Costa Rica. The new species differs from other known species of Halipegus on the basis of relative testis size, lateral extent of the uterus, vitelline follicle arrangement, egg size, and polar filament length.


Determination Of Wax Concentration In Sunflower-Seed Oil, Silvana Martini, M.C. Anon Oct 2000

Determination Of Wax Concentration In Sunflower-Seed Oil, Silvana Martini, M.C. Anon

Nutrition, Dietetics, and Food Sciences Faculty Publications

Isothermal crystallization of waxes was studied by using an optical setup. The induction time of crystallization was assessed as a function of wax concentration. The relationship was found to be a decreasing exponential curve. The wax content of some of the solutions prepared in the laboratory was determined by calculating the crystallization induction time. The values obtained were compared to those from different methods (cold test, microscopic, and turbidimetric methods). The results obtained with the optical setup method are similar to those obtained with other methods for concentrations greater than 100 ppm. An analysis of variance test was used to …


Is Reproduction By Tree Swallows (Tachycineta Bicolor) Cost-Free?, Michael T. Murphy Oct 2000

Is Reproduction By Tree Swallows (Tachycineta Bicolor) Cost-Free?, Michael T. Murphy

Biology Faculty Publications and Presentations

We manipulated brood sizes of Tree Swallows (Tachycineta bicolor) in 1996 and 1997 to test for the existence of intra- and intergenerational costs of reproduction. Modal clutch size was six eggs, but experimental brood sizes ranged from two to nine young. Nestling starvation was higher in 1996 (and dependent on brood size) than in 1997, but in both years enlargement of brood size resulted in increased productivity. Nestling mass near fledging was negatively correlated with brood size, but tarsus length and wing chord were not. Food deliveries by parents increased steadily between broods of two to six young but then …


Orbitally Induced Climate And Geochemical Variability Across The Oligocene/Miocene Boundary, Hilary A. Paul, James C. Zachos, Benjamin P. Flower, Aradhna Tripati Oct 2000

Orbitally Induced Climate And Geochemical Variability Across The Oligocene/Miocene Boundary, Hilary A. Paul, James C. Zachos, Benjamin P. Flower, Aradhna Tripati

Marine Science Faculty Publications

To assess the influence of orbital-scale variations on late Oligocene to early Miocene climate and ocean chemistry, high-resolution (similar to 5 kyr) benthic foraminiferal carbon and oxygen isotope and percent coarse fraction time series were constructed for Ocean Drilling Program site 929 on Ceara Rise in the western equatorial Atlantic. These time series exhibit pervasive low- to high-frequency variability across a 5-Myr interval (20.5-25.4 Ma). The records also reveal several large-scale secular variations including two positive (similar to 1.6 parts per thousand) oxygen isotope excursions at 22.95 and 21.1 Ma, suggestive of large but brief glacial maxima (Mi-l and Mi-la …


Mother Of Seed, Sarah Kimakwa Oct 2000

Mother Of Seed, Sarah Kimakwa

Faculty Publications

No abstract provided.