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  • Books
  • Articles  (46)
  • Other Sources
  • 2000-2004  (37)
  • 1965-1969  (9)
  • Energy, Environment Protection, Nuclear Power Engineering  (30)
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition  (17)
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  • Books
  • Articles  (46)
  • Other Sources
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  • 1
    Electronic Resource
    Electronic Resource
    Assessment of Microbial Populations in Activated Sludge Using an Organism Diversity Index (2002)
    Oxford, UK : Blackwell Publishing Ltd
    Water and environment journal 16 (2002), S. 0 
    Details
    ISSN: 1747-6593
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: An organism diversity index for use with mixed liquor or wastewater samples was developed to assess the species richness and diversity of activated sludge. The index was used in several studies and was found to be fast and simple to perform using basic laboratory equipment. Two bench-scale and two pilot-scale studies found that the resulting ‘organism diversity index’value was a good indicator of process performance and was not influenced by the total concentration of the mixed-liquor suspended solids but by their nature alone. The technique rapidly yielded pertinent information about the health of the sludge and could be used instead of genetic investigations to obtain population information quickly enough for wastewater-treatment plant process control.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1747-6593.2002.tb00366.x
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic and environmental effects on glucosinolate content and chemoprotective potency of broccoli (2004)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 123 (2004), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Broccoli is well recognized as a source of glucosinolates and their isothiocyanate breakdown products. Glucoraphanin is one of the most abundant glucosinolates present in broccoli and its cognate isothiocyanate is sulphoraphane, a potent inducer of mammalian detoxication (phase 2) enzyme activity and anti-cancer agent. This study was designed to measure: glucosinolate levels in broccoli florets from an array of genotypes grown in several environments; the elevation of a key phase 2 enzyme, quinone reductase, in mammalian cells exposed to floret extracts; and total broccoli head content. There were significant environmental and genotype-by-environment effects on levels of glucoraphanin and quinone reductase induction potential of broccoli heads; however, the effect of genotype was greater than that of environmental factors. The relative rankings among genotypes for glucoraphanin and quinone reductase induction potential changed, when expressed on a per head basis, rather than on a concentration basis. Correlations of trait means in one environment vs. means from a second were stronger for glucoraphanin and quinone reductase induction potential on a per head basis than on a fresh weight concentration basis. Results of this study indicate that development of a broccoli phenotype with a dense head and a high concentration of glucoraphanin to deliver maximum chemoprotective potential (high enzyme induction potential/glucoraphanin content) is a feasible goal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0179-9541.2003.00912.x
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  • 3
    Electronic Resource
    Electronic Resource
    Nitrogen Sources, Nitrification of Nitrogen Fertilizers. Effect of Nitrogen Source, Size and pH of Granule, and Concentration (1965)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 13 (1965), S. 486-492 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60142a001
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  • 4
    Electronic Resource
    Electronic Resource
    Lemon Juice Composition. Identification of Major Phenolic Compounds and Estimation by Paper Chromatography (1966)
    s.l. : American Chemical Society
    Journal of agricultural and food chemistry 14 (1966), S. 450-454 
    Details
    ISSN: 1520-5118
    Source: ACS Legacy Archives
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jf60147a003
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  • 5
    Electronic Resource
    Electronic Resource
    Resistance to quinclorac and ALS-inhibitor herbicides in Galium spurium is conferred by two distinct genes (2004)
    Oxford, UK : Blackwell Science Ltd
    Weed research 44 (2004), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Classical Mendelian experiments were conducted to determine the genetics and inheritance of quinclorac and acetolactate synthase (ALS)-inhibitor resistance in a biotype of Galium spurium. Plants were screened with the formulated product of either quinclorac or the ALS-inhibitor, thifensulfuron, at the field dose of 125 or 6 g active ingredient (a.i.) ha−1 respectively. Segregation in the F2 generation indicated that quinclorac resistance was a single, recessive nuclear trait, based on a 1 : 3 segregation ratio [resistant : susceptible (R : S)]. Resistance to ALS inhibitors was due to a single, dominant nuclear trait, segregating in the F2 generation in a 3 : 1 ratio (R : S). The genetic models were confirmed by herbicide screens of F1 and backcrosses between the F1 and the S parent. F2 plants that survived quinclorac treatment set seed and the resulting F3 progeny were screened with either herbicide. Quinclorac-treated F3 plants segregated in a 1 : 0 ratio (R : S), hence F2 progenitors were homozygous for quinclorac resistance. In contrast, F3 progeny segregated into three ratios: 1 : 0, 3 : 1 and 0 : 1 (R : S) in response to ALS-inhibitor treatment. This segregation pattern indicates that their F2 parents were either homozygous or heterozygous for ALS-inhibitor resistance. Therefore, there were clearly two distinct resistance mechanisms encoded by two genes that were not tightly linked as demonstrated by segregation patterns of the F3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.2004.00408.x
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  • 6
    Electronic Resource
    Electronic Resource
    THE MOVEMENT AND METABOLISM OF PYRAZON IN TOLERANT AND SUSCEPTIBLE SPECIES (1967)
    Oxford, UK : Blackwell Publishing Ltd
    Weed research 7 (1967), S. 0 
    Details
    ISSN: 1365-3180
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary. Pyrazon (5-amino-4-chIoro-2-phenyl-3(2H)-pyridazinonc) labelled with tritium in the phenyl ring, was applied to both the root and shoot of seedlings of red beet (Beta vulgaris L., cultivar Detroit Dark Red I, German millet (Setatra italica J.), and tomato (Lycopersicon esculentum Mill., cultivar Heinz 1350). Of these species, red best is tolerant, millet is moderately tolerant, and tomato is susceptible to pyrazon.When the roots were exposed to 1–325 ppm 3H-pyrazon in the nutrient solution, the greatest root absorption and transiocation to the shoot was observed in tomato and the least in red beet, while millet was intermediate.Applications to the first true leaf indicated that pyrazon was absorbed by the foliage of all three but that it was not transported basipetally. The absorption and translocation studies indicated that pyrazon mi transported primarily in the xylem.A radioactive metabolite of 3H-pyrazon was detected in the shoots of red beet, but there was no evidence for its presence in the shoots of the other two species. Since this metabolite is radioactive, its structure must contain at least some altered form of the phenyl ring which contained the tritium in the parent molecule. This differentiates it from 5-amino-4-chloro-pyridazinone, the previously proposed degradation product of pyrazon, since this compound lacks the phenyl ring.On the bash of these results, it is hypothesized that pyrazon will be phytotoxic if a suffic inn mm entration of the unaltered chemical reaches the site of herbicidal action in the shoot.Migration et métabolisme de la pyrazone dans les espéces rislstantes et sensibles
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3180.1967.tb01347.x
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  • 7
    Electronic Resource
    Electronic Resource
    Design and Operation of an Inexpensive Sensitive Piezometer with Short Timelag (1969)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 7 (1969), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: The growing number of ground-water research projects that are based primarily on potential distribution data has stimulated the development of several new types of potential measuring, instruments. The primary requirements for these instruments are longevity, precision, sensitivity, and short timelag. Ease of installation, minimum maintenance, low capital investment, and provision of a continuous record are equally desirable. Generally, available instruments will satisfy two or three, but not all of these requirements.The need for a piezometer possessing all these characteristics was encountered during a flow-system study beneath an irrigated field. A piezometer subsequently was designed which combines the sensitivity of a Kecke electrical water-level sensing device with the continuous record provided by a Stevens Type F, graphic recorder. Replacement of the standard Keck sensing “Bob” with a probe specifically designed for small diameter pipes (5/16-inch I.D.),* provides instrumentation with a short timelag. The absence of a diaphragm and strain gauges enhances longevity. The device is inexpensive, simple and easily installed. Samples of well water for chemical analysis may also be obtained from the piezometers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1969.tb01665.x
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  • 8
    Electronic Resource
    Electronic Resource
    Air Quality in Norwich, UK Multi-Scale Modelling to Assess the Significance of City, County and Regional Pollution Sources (2000)
    Springer
    Environmental monitoring and assessment 65 (2000), S. 425-433 
    Details
    ISSN: 1573-2959
    Keywords: PM10 ; urban air quality ; background ; NAME ; ADMS ; long range transport ; air pollution ; particulates ; nitrogen dioxide ; sulphur dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Norwich is the eastern most city in the United Kingdom. Despite a population of only 100,000 and very little local industry, studies have shown that the city experiences levels of nitrogen dioxide, ozone, particulates and sulphur dioxide exceeding the UK Air Quality Standards. Because of Norwich's situation within a large, predominantly rural area a large non-resident workforce is one factor that contributes to large, often very congested traffic flows. The city's location close to the European mainland also exposes it to polluted airmasses transported from the continent, especially in the case of particulates and ozone. In order to assess the relative contributions of local and regional sources, data from rural and urban monitoring sites are to be used in conjunction with ADMS-Urban and the UK Meteorological Office's NAME model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006477112407
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  • 9
    Electronic Resource
    Electronic Resource
    The effect of irrigation on damage to potato tubers by slugs (1965)
    Springer
    Potato research 8 (1965), S. 145-149 
    Details
    ISSN: 1871-4528
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Zwei Kartoffelsorten,Redskin undMajestic, wurden unter vier verschiedenen Bewässerungsverfahren kultiviert: 1. Keine Bewässerung. 2. Bewässerung vor der Knollenbildung; 3. Bewässerung nach der Knollenbildung; 4. Bewässerung während der Wachstumsperiode der Pflanzen. Beide Sorten erlitten den gr\:ossten Schaden durch die NacktschneekenMilax budapestensis(Hazay) undArion hortensis F\'er, wenn die Pflanzen bew\:assert wurden (Tabelle 1). Die Knollen der SorteRedskin waren st\:arker besch\:adigt als jene der SorteMajestic (Tabelle 2). Eine gr\:ossere Anzahl vonRedskin-Knollen wiesen mehr als zwei L\:ocher auf. Die Zeit der Anpflanzung beeinflusste das Ausmass des Schadens bei keiner Sorte in grossem Masse (Tabelle 3). Es wird auf m\:ogliche Erkl\:arungen f\:ur diese Unterschiede hingewiesen. Der Ertrag an unbesch\:adigten Knollen wurde durch die Bew\:asserung erh\:oht, obwohl der Schaden durch die Nacktschnecken ebenfalls zunahm (Tabelle 4). In dieser Hinsicht hatteMajestic mehr Nutzen von der Bew\:asserung alsRedskin.
    Abstract: Résumé On a fait pousser deux variétés de Pomme de terre,Redskin etMajestic, dans quatre régimes différents d'alimentation en eau: 1. pas d'irrigation; 2. irrigation avant la formation des tubercules; 3. irrigation après la formation des tubercules; 4. irrigation pendant la période de croissance des plantes. Les limacesMilax budapestensis (Hazay) etArion hortensis Fér. causaient les plus grands dommages aux deux variétés quand les plantes étaient irriguées (Tableau 1). La variétéRedskin était plus sévèrement endommagée queMajestic (Tableau 2). Les tuberculesRedskin avaient la plus grande proportion de tubercules avec plus de deux cavités. Le moment de la plantation était sans importance pour les deux variétés (Tableau 3). L'auteur avance des explications à ropos dep ces différences. L'irrigation augmente la production de tubercules non endommagés même quand elle augmente les dégâts de limaces (Tableau 4). Sousce rapport la variétéMajestic plus que la variétéRedskin profitait de l'irrigation.
    Notes: Summary Two varieties of potato,Redskin andMajestic, were grown with four water regimes;-unirrigated, irrigated before tuber formation, irrigated after tuber formation, and irrigated throughout the growing season. The damage done by slugs and the yields were measured. Both varieties suffered most damage from slugs when irrigated after the tubers started to form. MoreRedskin tubers were damaged thanMajestic and a greater proportion had more than two holes. Possible explanation for these differences are suggested. Yields of undamaged tubers were increased by irrigation even though damage by slugs increased. In this respectMajestic benefitted more thanRedskin from irrigation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02390584
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  • 10
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    Growth rate predicts mortality of Abies concolor in both burned and unburned stands (2003)
    Canadian Science Publishing
    Details
    Publication Date: 2003-06-01
    Description: Tree mortality is often the result of both long-term and short-term stress. Growth rate, an indicator of long-term stress, is often used to estimate probability of death in unburned stands. In contrast, probability of death in burned stands is modeled as a function of short-term disturbance severity. We sought to narrow this conceptual gap by determining (i) whether growth rate, in addition to crown scorch, is a predictor of mortality in burned stands and (ii) whether a single, simple model could predict tree death in both burned and unburned stands. Observations of 2622 unburned and 688 burned Abies concolor (Gord. & Glend.) Lindl. (white fir) in the Sierra Nevada of California, U.S.A., indicated that growth rate was a significant predictor of mortality in the unburned stands, while both crown scorch and radial growth were significant predictors of mortality in the burned stands. Applying the burned stand model to unburned stands resulted in an overestimation of the unburned stand mortality rate. While failing to create a general model of tree death for A. concolor, our findings underscore the idea that similar processes may affect mortality in disturbed and undisturbed stands.
    Print ISSN: 0045-5067
    Electronic ISSN: 1208-6037
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Canadian Science Publishing
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