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1999

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Articles 1951 - 1980 of 2285

Full-Text Articles in Life Sciences

Assessment Of The Effects Of Rooted Offshoot Properties And Ga_3 Applications On The Yield Of The Globe Artichoke, Günnur Koçer, Beni̇an Eser Jan 1999

Assessment Of The Effects Of Rooted Offshoot Properties And Ga_3 Applications On The Yield Of The Globe Artichoke, Günnur Koçer, Beni̇an Eser

Turkish Journal of Agriculture and Forestry

In this study, the effects of rooted offshoot properties and number of GA_3 applications, 30 ppm in concentration, on the early and total yield of the globe artichoke cv "Sakız", produced in one year, were tested. It was determined that when the offshoots, which were at the vegetative growth stage, were used in plantation, higher early and total yields were obtained than that of the generative growth stage. This positive result gained with offshoots at the vegetative stage was also improved significantly with all GA_3 applications, 30 ppm in concentration when compared with untreated plants. Double GA_3 application gave better …


Vascular Flora Of The Liebre Mountains, Western Transverse Ranges, California, Steve Boyd Jan 1999

Vascular Flora Of The Liebre Mountains, Western Transverse Ranges, California, Steve Boyd

Aliso: A Journal of Systematic and Floristic Botany

The Liebre Mountains form a discrete unit of the Transverse Ranges of southern California. Geographically, the range is transitional to the San Gabriel Mountains, Inner Coast Ranges, Tehachapi Mountains, and Mojave Desert. A total of 1010 vascular plant taxa was recorded from the range,representing 104 families and 400 genera. The ratio of native vs. nonnative elements of the flora is 4:1, similar to that documented in other areas of cismontane southern California. The range is noteworthy for the diversity of Quercus and oak-dominated vegetation. A total of 32 sensitive plant taxa (rare, threatened or endangered) was recorded from the range.


Water Quality Relationships To Concentrations Of Pfiesteria-Like Organisms In Virginia Estuaries For 1998, Everett P. Weber, Harold G. Marshall Jan 1999

Water Quality Relationships To Concentrations Of Pfiesteria-Like Organisms In Virginia Estuaries For 1998, Everett P. Weber, Harold G. Marshall

Virginia Journal of Science

A series of statistical analyses were performed to identify the relationship between abundance of dinoflagellates grouped as Pfiesteria-like organisms and a set of 25 water quality variables from May through October of 1998 at 41 estuarine locations. Although regions were identified in relation to seasonal density of cells present, there were no strong relationships to specific water quality variables. Factors that may have influenced these results included: a) several species were included in the group analyzed and this composite did not respond as a unit to changing environmental conditions; b) cell concentrations were low and there were a large …


Mandarin Garden Club 1999, Mandarin Garden Club Jan 1999

Mandarin Garden Club 1999, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes images, club news and news clippings. Cover material: Cardboard. Size: 11.5” x 10” x 2.5”.


Table Of Contents Volume 10, Number One, Winter 1999, Risk Editorial Board Jan 1999

Table Of Contents Volume 10, Number One, Winter 1999, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal RISK: Health, Safety & Environment (ISSN: 1073-8673)


Review Of: Lewis' Dictionary Of Toxicology (Robert A. Lewis, Ed.; Lewis Publishers 1998), Dana E. Evans Jan 1999

Review Of: Lewis' Dictionary Of Toxicology (Robert A. Lewis, Ed.; Lewis Publishers 1998), Dana E. Evans

RISK: Health, Safety & Environment (1990-2002)

Review of the book: Lewis' Dictionary of Toxicology (Robert A. Lewis, ed.; Lewis Publishers 1998). About the author, acknowledgments, alphabetical listing of terms defined. ISBN 1-56670-223-2; [1127 pp. $84.95. Hardbound. 2000 Corporate Blvd. N.W., Boca Raton, FL 33431.]


Bulletin 4397 - Stone Fruit From Western Australia - At A Glance, Glynn Ward, Geraldine Pasqual, Eleanor Melvin-Carter Jan 1999

Bulletin 4397 - Stone Fruit From Western Australia - At A Glance, Glynn Ward, Geraldine Pasqual, Eleanor Melvin-Carter

Bulletins 4000 -

Western Australia produces a range of horticultural commodities including fruit, vegetables, flowers, nursery products and wine as part of its fast growing $400 million horticultural industry. Natural advantages such as climate and clean environment, soils and water make Western Australia an ideal place to supply a variety of high quality produce to domestic and international markets.

The stone fruit industry in Western Australia is booming with large production increases predicted. Production from well established plum, peach and nectarine orchards in 1996/97 is estimated at $17 million and exports have doubled in the past five years to $10 million in 1998/99. …


Bulletin 4384 - New Asian Vegetables From Western Australia - At A Glance, Vynka Mcveigh, Soon Chye Tan Dr, Geraldine Pasqual Jan 1999

Bulletin 4384 - New Asian Vegetables From Western Australia - At A Glance, Vynka Mcveigh, Soon Chye Tan Dr, Geraldine Pasqual

Bulletins 4000 -

Western Australia produces a range of horticultural commodities including fruit, vegetables, flowers, nursery products and wine as part of its fast growing $400 million horticultural industry. Natural advantages such as climate and clean environment, soils and water make Western Australia an ideal place to supply a variety of high quality produce to domestic and international markets.

Western Australia is Australia's largest exporter of fresh vegetables, sending a range of products to over 20 countries. A strong export trade has developed with South East Asia and growing opportunities exist in other markets in Asia and in the Northern Hemisphere. Western Australia …


Chemical Analysis Of Veterinary Drug Residues In Salmon Tissue, Patrice Behan Jan 1999

Chemical Analysis Of Veterinary Drug Residues In Salmon Tissue, Patrice Behan

Doctoral

The Irish finfish-farming section has increased from 20 tonnes in 1980 to 15,440 in 1997. The sales value of the 15,440 tonnes was £37.5 M where exports were worth approximately £30 M of this. This increasing intensity of fish farming has inevitably been paralleled by increases in disease, which has force the mariculturist to increase the use of chemicals. A major concern with the use of chemicals in mariculture is residues, which may remain in the fish tissue after harvesting and resulting in exposure to the consumer. Under Council Directive 96/23/EC Member States are required to monitor on a routine …


The Use Of Conferencing Software For The Distance Education Of Renal Pharmacotherapy, Sirada Maphanta, Curtis A. Johnson Jan 1999

The Use Of Conferencing Software For The Distance Education Of Renal Pharmacotherapy, Sirada Maphanta, Curtis A. Johnson

The Thai Journal of Pharmaceutical Sciences

Pharmacy educators have become increasingly interested in distance education methods. This interest has been stimulated by the advent of the nonlraditional doctor of pharmacy program that relies heavily on various means of distance technology. At the Uni...


The Whales Have Not Been Saved, Aldemaro Romero Jr. Jan 1999

The Whales Have Not Been Saved, Aldemaro Romero Jr.

Publications and Research

No abstract provided.


The Blind Cave Fish That Never Was, Aldemaro Romero Jr. Jan 1999

The Blind Cave Fish That Never Was, Aldemaro Romero Jr.

Publications and Research

No abstract provided.


Stability Of Furosemide In Extemporaneously Compounded Oral Suspensions: Effect Of Vehicle, Ph, And Storage Conditions(ความคงตัวของฟูโรซีใมด์ในรูปแบบยาแขวนตะกอนรับป..., Detpon Preechagoon, Wiyada Maha-Orankul, Nattiya Pongphasuk, Preeya Areemit, Usa Sripanyawichya Jan 1999

Stability Of Furosemide In Extemporaneously Compounded Oral Suspensions: Effect Of Vehicle, Ph, And Storage Conditions(ความคงตัวของฟูโรซีใมด์ในรูปแบบยาแขวนตะกอนรับป..., Detpon Preechagoon, Wiyada Maha-Orankul, Nattiya Pongphasuk, Preeya Areemit, Usa Sripanyawichya

The Thai Journal of Pharmaceutical Sciences

The stability of furosemide in extemporaneously prepared oral suspensions from commercially available tablets was studied. Suspensions of furosemide in syrup, sorbitol and phosphate buffer (pH 4, 6 and 8) were compounded and stored at 4 °c and ambient t...


Development Of 31p Nuclear Magnetic Resonance Methods For The Study Of Phosphate Metabolisms In E. Coli And B. Subtilis, Fabian M. Dayrit, Emilyn Q. Espiritu, Noreen Gonzalez, Nina Rosario L. Rojas, Jennifer T. Aguilan, Antonio M. Basilio, Edward T. Chainani, Enrico Cruz, Bernadette Matanguihan Jan 1999

Development Of 31p Nuclear Magnetic Resonance Methods For The Study Of Phosphate Metabolisms In E. Coli And B. Subtilis, Fabian M. Dayrit, Emilyn Q. Espiritu, Noreen Gonzalez, Nina Rosario L. Rojas, Jennifer T. Aguilan, Antonio M. Basilio, Edward T. Chainani, Enrico Cruz, Bernadette Matanguihan

Environmental Science Faculty Publications

31P NMR experiments were performed on Escherichia coli and Bacillus subtilis at various temperatures under aerobic and anaerobic conditions. The total soluble intracellular phosphate concentration was estimated to be 2 x 10^-17 mole/cell, while intracellular orthophosphate concentration was around 1 x 10^-17 mole/cell. Addition of glucose resulted in a general decrease in intracellular pH and was accompanied by the formation of sugar monophosphates. The concentrations of soluble intracellular phosphates, both inorganic and organic phosphates, were estimated by integration versus methylene diphosphonic acid (MDPA) standard. Although intracellular and extracellular orthophosphate could be observed, these appear to exchange rapidly on the NMR …


Attitudes To Biotechnology And Genetically Modified Food : A Review, Juliana Rose Cannon Jan 1999

Attitudes To Biotechnology And Genetically Modified Food : A Review, Juliana Rose Cannon

Theses : Honours

Debate surrounds the introduction of new biotechnological applications such as genetically modified food (GMF). With this in mind a critical review of the debate, it's emerging themes, and approaches to measurement was undertaken. The intention of this review was to argue that while existing empirical measures have advanced our understanding of attitudes to GMF, they are limited both conceptually and methodologically. Overall, the validity and reliability of research support was compromised. Conceptually, attitudes to GMF were composed of a number of potential dimensions that have yet to be measured. Adherence to sound scale construction techniques may facilitate more reliable and …


Salinity And Hydrology Of The Fence Road Catchment : A Focus Catchment Of The Blackwood Basin, Ben Whitfield Jan 1999

Salinity And Hydrology Of The Fence Road Catchment : A Focus Catchment Of The Blackwood Basin, Ben Whitfield

Resource management technical reports

It is the clearing of native vegetation and replacement with lower water-use annual crops and pastures that is responsible for the developing salinity problem. Traditional farming practices have led to increased recharge to the groundwater systems resulting in increased storage and/or greater areas or rates of discharge. Groundwater monitoring has revealed variable rates of rise throughout the Fence Road catchment, from static to 0.6 metres per year, in a period of average to below average rainfall.


Gene Flow Among Habitat Patches On A Fragmented Landscape In The Spider Argiope Trifasciata (Araneae: Araneidae), Martina G. Ramirez, Kirsten E. Haakonsen Jan 1999

Gene Flow Among Habitat Patches On A Fragmented Landscape In The Spider Argiope Trifasciata (Araneae: Araneidae), Martina G. Ramirez, Kirsten E. Haakonsen

Biology Faculty Works

The banded garden spider (Argiope trifasciata) is a common orb weaver of old field habitats in the United States. In this study, we determined levels of genetic variability and gene flow among seven populations in central Pennsylvania, based on variation at eight allozyme loci. Mean heterozygosity (observed) per population was 7.5% and mean polymorphism was 39.3%, consistent with levels of variability in other arthropods. Values of GST for the four polymorphic loci (mean GST=0.011) suggest that gene flow prevents the genetic differentiation of these populations. The average number of migrants per generation (Nm) among …


Isolation Of Sperm Storage Tubules From The Uterovaginal Junction Mucosa Of The Turkey, L. M. King, J. P. Brillard, M. R. Bakst, A. M. Donoghue Jan 1999

Isolation Of Sperm Storage Tubules From The Uterovaginal Junction Mucosa Of The Turkey, L. M. King, J. P. Brillard, M. R. Bakst, A. M. Donoghue

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

This study was performed to determine whether intact sperm storage tubules (SST) could be successfully isolated from the uterovaginal junction (UVJ) mucosa of the turkey. Large White BUTA hens were inseminated and euthanatized 24 to 48 h later. Oviducts were excised, UVJ tissue removed, and SST were procured by enzymatic digestion. Recovered SST were intact and contained motile sperm. The sperm were oriented with their acrosomes pointed towards the distal end of the SST, and their long axes in parallel with the long axis of the tubule’s lumen. This method for the isolation of intact SST can be readily applied …


Cytogenetic Assignment Of 53 Microsatellites From The Usda-Marc Porcine Genetic Map, N. L. Lopez-Corrales, C. W. Beattie, G. A. Rohrer Jan 1999

Cytogenetic Assignment Of 53 Microsatellites From The Usda-Marc Porcine Genetic Map, N. L. Lopez-Corrales, C. W. Beattie, G. A. Rohrer

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

This study provides 53 new fluorescent in situ hybridization cytogenetic assignments for microsatellite markers linked to the swine genetic map. Forty microsatellites are physically assigned for the first time. The chromosomal locations of eight markers were either confirmed or refined, while five loci were assigned to locations different from those given in previous reports. Markers were selected to provide physical anchors based on their presumed proximity to centromeres or telomeres and at approximately 30 cM invervals across the genetic map. The number of physical anchors for pig (SSC) chromosomes 8, 15, and 18 linkage groups was significantly improved. Centromeric regions …


Economic And Environmental Benefits Of Soil/Water Nitrogen Testing: The Case Of Central Nebraska, C. S. Kim, Harold Taylor, Carmen Sandretto Jan 1999

Economic And Environmental Benefits Of Soil/Water Nitrogen Testing: The Case Of Central Nebraska, C. S. Kim, Harold Taylor, Carmen Sandretto

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

This research presents a competitive dynamic model to evaluate the economic and groundwater quality benefits resulting from the adoption of soil/water nitrogen testing. The model is applied to an irrigated corn production county in the Nebraska Mid-State area where the groundwater contamination level from nitrates is reported to be, on average 18.7 parts per million (ppm). Adoption of nutrient management practices would result in increased economic benefits to farmers and reduced nitrate stocks in groundwater.


Effect Of Airflow On House Fly (Diptera: Muscidae) Distribution In Poultry Houses, Christopher Geden, Jerome Hogsette, Roger Jacobs Jan 1999

Effect Of Airflow On House Fly (Diptera: Muscidae) Distribution In Poultry Houses, Christopher Geden, Jerome Hogsette, Roger Jacobs

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

Numbers of fecal and vomit spots deposited by house flies, Musca domestica L., on spot cards were about twice as high on cards placed on the downwind sides as on the upwind sides of building support posts in caged-layer poultry houses with tunnel ventilation in Brooksville, FL. This trend was stronger at the ends of the houses where airflow is faster than in the relatively still-air center of the houses. A similar evaluation conducted in a pullet house (Zephyrhills, FL) with an evaporative cooling ventilation system revealed significantly higher fly counts on spot cards and sticky cards in downwind compared …


Effects On Commercial Broiler Chicks Of Constant Exposure To Ultraviolet Light From Insect Traps, Jerome Hogsette, Henry Wilson Jan 1999

Effects On Commercial Broiler Chicks Of Constant Exposure To Ultraviolet Light From Insect Traps, Jerome Hogsette, Henry Wilson

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

Constant exposure of newly hatched Avian x Avian broilers to ultraviolet light from insect traps for 42 d resulted in no significant differences in mortality, weight gain, feed consumption, or feed conversion. Birds were exposed to greater intensities of ultraviolet light for longer periods than could be expected under commercial conditions. Although house flies are rarely a problem in broiler houses, our results indicate that insect traps with ultraviolet light as an attractant would not be detrimental to production of broilers. The need for additional testing of light traps for nuisance fly control in commercial broiler houses is discussed.


The Reproductive Biology And Effective Pollinators Of The Endangered Beardtongue Penstemon Penlandii (Scrophulariaceae), Vincent J. Tepedino, Sedonia D. Sipes, Terry L. Griswold Jan 1999

The Reproductive Biology And Effective Pollinators Of The Endangered Beardtongue Penstemon Penlandii (Scrophulariaceae), Vincent J. Tepedino, Sedonia D. Sipes, Terry L. Griswold

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

Penland's beardtongue, a rare endemic plant of the Colorado Plateau, displays a mixed breeding system. Plants are partially self-compatible but set more fruits when cross-pollinated than when self-pollinated. Fruit production is significantly increased by pollinators. However, in two years of study there was no indication that fruit set was being limited by inadequate pollinator visitation. Pollinator effectiveness was judged by correlating bee behavior at the flowers with analysis of the pollen carried on bee bodies. The most important pollinators were native megachilid bees, particularly in the genus Osmia. The bees that pollinate Penland's beardtongue are essential to its reproduction …


Report Of The Brassica Crops Working Group, Chris Neeser Jan 1999

Report Of The Brassica Crops Working Group, Chris Neeser

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

The Brassicaceae family comprises about 3000 species, the majority of which are found in the Northern Hemisphere. Many common agricultural weeds, such as Brassica nigra (L.) Koch, Brassica rapa L., Cardaria draba (L.) Desv., Raphanus raphanistrum L., and Sinapis arvensis L., belong to this family. The most important crop species from this family are the oilseed Brassicas; Brassica napus L., B rapa L., and B juncea Coss., which are generally referred to as rapeseed, oilseed rape, or canola. Other widely cultivated species in this family are: B. oleracea L. (cabbage, kale, kohlrabi, Brussels sprouts, cauliflower, and broccoli), B. chinensis L. …


Report Of The Grains Working Group (Rice, Sorghum And Wheat), Donna Mitten Jan 1999

Report Of The Grains Working Group (Rice, Sorghum And Wheat), Donna Mitten

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

The grains working group identified three crops which have sexually compatible weedy relatives likely to be subject to gene flow in US agricultural systems (Table 1). The ease of cross pollination and the successful production of a fertile hybrid vary with each case. If the selective advantage of an introduced trait is positive, however, introgression of the new trait into an existing weed population is possible. The risk of ecological harm is then dependent upon the habitat of the weed. In the crop-weed complexes considered here, in which the habitat of the weedy relative is limited to agricultural systems, the …


Extraction And Characterisation Of Essential Oils From Waste Eucalyptus Foliage, Hugh O'Reilly Jan 1999

Extraction And Characterisation Of Essential Oils From Waste Eucalyptus Foliage, Hugh O'Reilly

Theses

Extraction procedures such as steam distillation, solvent and soxhlet extraction have been investigated to determine the most effective method of extracting essential oil from the foliage of a number of species of Eucalyptus cultivated in Co. Kerry. Steam distillation has been found to be the most effective method of extraction. The steam distillation extraction method has been thoroughly studied in order to determine the factors affecting yield and composition of the distillate. Alteration of the distillation time has been found to produce oil high in 1,8-cineole content, a requirement of medicinal quality oil. The choice of individual distillation still used …


New Polyether Toxins From Shellfish And Marine Phytoplankton: Isolation Studies And Development Of Analytical Methods, Alan G. Bishop Jan 1999

New Polyether Toxins From Shellfish And Marine Phytoplankton: Isolation Studies And Development Of Analytical Methods, Alan G. Bishop

Theses

There are three classes of polyether toxins responsible for Diarrhetic Shellfish Poisoning (DSP) world-wide. The causative toxins are okadaic acid (OA) and derivatives (DTXs), pectenotoxins (PTXs) and yessotoxins (YTXs). The origin of these toxins are phytoplankton from Dinophysis or Prorocentrum spp. OA has been demonstrated for most outbreaks in Europe and more recently a new isomer DTX-2 has been reported in Ireland.

Marine phytoplankton biomass samples consisting predominantly of Dinophysis acuta, were acquired using a large double plankton net from waters off the South-west coast of Ireland. Analysis of unialgal samples using high performance liquid chromatography (HPLC) with fluorescence and …


Comparative Evaluation Of Cotesia Flavipes And C. Sesamiae (Hymenoptera: Braconidae) For The Management Of Chilo Partellus (Lepidoptera: Pyralidae) In Kenya, M. N. Sallam, W. A. Overholt, E. Kairu Jan 1999

Comparative Evaluation Of Cotesia Flavipes And C. Sesamiae (Hymenoptera: Braconidae) For The Management Of Chilo Partellus (Lepidoptera: Pyralidae) In Kenya, M. N. Sallam, W. A. Overholt, E. Kairu

All Peer-Reviewed Publications

Cotesia flavipes Cameron, a gregarious larval endoparasitoid native to the Indo-Australian region, was imported from Pakistan and released in Kenya in 1993 for management of the exotic stemborer, Chilo partellus (Swinhoe). Recent reports confirmed the successful establishment of the parasitoid in three locations in Kenya and in northern Tanzania. Functional response studies on this parasitoid and an indigenous congener, Cotesia sesamiae (Cameron), indicated that C. flavipes had a higher searching ability and attacked more larvae when Chilo partellus was the host. When a native stemborer, Sesamia calamistis Hampson, was the host, there was no significant difference between numbers attacked by …


Efficacy Of Neem Seed Derivatives Against Nematodes Affecting Banana, T. Musabyimana, R. C. Saxena Jan 1999

Efficacy Of Neem Seed Derivatives Against Nematodes Affecting Banana, T. Musabyimana, R. C. Saxena

All Peer-Reviewed Publications

Soil applications of powdered neem seed or neem cake at 100 g/plant at planting and, subsequently, at 3-month intervals, reduced the populations of Pratylenchus goodeyi Sher and Allen and Meloidogyne spp. on par with Furadan 5G (carbofuran) applied at 40 g/plant at planting and then at 6-month intervals to banana plants grown in 100-l containers with controlled levels of banana nematode infestations. Eight months after planting, banana plants treated with powdered neem cake, seed or kernel or with neem oil had 4 to 95 times fewer parasitic nematodes than the untreated control. However, only neem cake powder or neem seed …


Religiosity And Physical Fitness: A Study Of Middle-Aged Mormon Men, Janette Olsen Jan 1999

Religiosity And Physical Fitness: A Study Of Middle-Aged Mormon Men, Janette Olsen

Theses and Dissertations

Research has related both physical fitness and religiosity to health. This study combined these ideas and examined the relationship between religiosity and physical fitness among middle aged Mormon men (n=110). Mormons are an ideal population for study because of their strict health code. Fitness variables were grip strength, waist/hip ratio, body mass index (BMI) and estimated maximal oxygen uptake (VO2max). A questionnaire assessed level of religiosity and separated subjects into two groups: highly religious (n=35) and less religious (n=14). Moderately religious subjects (n=61) were omitted. A one way ANOVA (between-groups design) found no significant differences in fitness variables between groups. …