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  • 1
    Series available for loan
    Series available for loan
    Regional geochemical exploration in the Coppermine River area, District of Mackenzie : a feasibility study in permafrost terrain (1972)
    Ottawa : Geological Survey of Canada
    Associated volumes
    Details Availability
    Call number: SR 90.0008(71-33)
    In: Paper
    Type of Medium: Series available for loan
    Pages: VII, 52 S.
    Series Statement: Paper / Geological Survey of Canada 71-33
    Language: English
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 2
    Series available for loan
    Series available for loan
    Reconnaissance geochemistry using lake sediments of a 36,000-square-mile area of the northwestern Canadian Shield : (Bear-Slave Operation, 1972) (1973)
    Ottawa : Geological Survey of Canada
    Associated volumes
    Details Availability
    Call number: SR 90.0008(72-50)
    In: Paper
    Type of Medium: Series available for loan
    Pages: VIII, 70 S.
    Series Statement: Paper / Geological Survey of Canada 72-50
    Language: English
    Location: Lower compact magazine
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  • 3
    Series available for loan
    Series available for loan
    Geochemical exploration feasibility study within the zone of continuous permafrost; Coppermine River region, Northwest Territories (1970)
    Ottawa : Geological Survey of Canada
    Associated volumes
    Details Availability
    Call number: SR 90.0008(70-36)
    In: Paper
    Type of Medium: Series available for loan
    Pages: VIII, 35 S.
    Series Statement: Paper / Geological Survey of Canada 70-36
    Language: English
    Location: Lower compact magazine
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  • 4
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    Monthly Southern Oscillation Index from 1866 to 1997 (2000)
    PANGAEA
    Details
    Publication Date: 2023-01-14
    Keywords: Calculated; Calculation; DATE/TIME; INT; SOI_Index; Southern Oscillation Index
    Type: Dataset
    Format: text/tab-separated-values, 1584 data points
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    DATA PANGAEA
  • 5
    Electronic Resource
    Electronic Resource
    Heavy metals in bottom sediments of great slave lake (Canada): A reconnaissance (1979)
    Springer
    Environmental geology 3 (1979), S. 49-58 
    Details
    ISSN: 1432-0495
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Near the shores of Great Slave Lake, natural sources of heavy metals include gold and base metal deposits, mineralized greenstone belts and sedimentary bedrock, and uraniferous granites. Potential anthropogenic sources of heavy metals (As, Zn, Pb) include large gold and base metal extraction -processing facilities on the shores of the lake. Six sediment cores were collected on a traverse of the lake. Heavy metal concentrations and distributions are related to the regional bedrock geochemistry in the drainage basin. Higher uranium concentrations in the northernmost core are attributed to extensive uraniferous areas north of the lake. More subtle variations of concentration are related to sedimentologic characteristics and processes in the lake. The west basin is a natural sink for most of the heavy metals determined. Two centrally located west basin cores had mean zinc concentrations of 145 ppm, whereas cores closer to the north and south shores had mean concentrations of 80–110 ppm. Mn, Ni, and Pb were enriched in some of the cores from the area of shallower water near the MacKenzie River outlet, rather than in the central west basin. The enrichment is related to Mn-, Ni-, and Pb-rich amorphous coatings on quartz grains. Elevated zinc or lead levels from anthropogenic activities were not detected but elevated levels are suspected for arsenic. In the two cores from the center of the west basin, surface sediment contains up to 12 ppm arsenic, not high in comparison with noncontaminated freshwater lakes elsewhere in Canada but considerably elevated relative to concentrations of 1 ppm found deeper in the same cores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02423278
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  • 6
    Electronic Resource
    Electronic Resource
    Light-stimulated 14CO2 uptake and acetylene reduction by bacteriochlorophyll containing stem nodule isolate BTAi 1 (1993)
    Springer
    Biology and fertility of soils 15 (1993), S. 208-214 
    Details
    ISSN: 1432-0789
    Keywords: Nitrogen fixation ; Photosynthetic bacteria ; Stem nodules ; Aeschynomene scabra ; Sesbania rostrata ; Azorhizobium caulinodans ; Erythrobacter sp. ; Roseobacter denitrificans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Bradyrhizobial strain BTAi 1 nodulates both stems and roots of Aeschynomene spp. Previous work has shown that it contains bacteriochlorophyll a and forms photosynthetic reaction centers, and has provided indirect evidence of photosynthesis by bacteroids within stem nodules. Here we report physiological and biochemical characteristics of BTAi 1 ex planta, which also suggest the presence of photosynthetic activity. Light-stimulated uptake of 14CO2 by BTAi 1 was detected at all stages of growth. Inhibitors of photosynthesis, 1,10-orthophenanthroline and 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU), and the uncoupler NH4Cl, immediately suppressed light-driven 14CO2 uptake and increased O2 uptake. BTAi 1 is strictly aerobic and was unable to grow without organic C even in the light; also, it was unable to grow chemoautotrophically in an atmosphere enriched with H2 and CO2. In micro-aerobic conditions, strain BTAi 1 expressed acetylene reducing activity ex planta in an N-free medium. The highest rates of light-stimulated 14CO2 uptake and acetylene-reducing activity occurred during the exponential and early stationary phases of growth. Acetylene-reducing rates at a low glucose concentration were increased following a light-dark cycle in comparison with continuous dark conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00361613
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  • 7
    Electronic Resource
    Electronic Resource
    Clinical pharmacokinetics of high dose mebendazole in patients treated for cystic hydatid disease (1982)
    Springer
    European journal of clinical pharmacology 22 (1982), S. 161-169 
    Details
    ISSN: 1432-1041
    Keywords: mebendazole ; hydatid disease ; Echinococcus granulosus ; hepatic disease ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The plasma concentrations of mebendazole and its metabolites have been monitored in twelve patients after receiving a 10 mg/kg dose for cystic hydatid disease. The mebendazole plasma concentration-time profiles differed considerably between patients; elimination half-lives ranged from 2.8–9.0 h, time to peak plasma concentration after dosing ranged from 1.5–7.25 h and peak plasma concentrations ranged from 17.5 to 500 ng/ml. The mean peak plasma concentration of mebendazole after an initial dose (69.5 ng/ml) was lower than found in patients during chronic therapy (137.4 ng/ml). The plasma AUCTs for the major metabolites of mebendazole (methyl 5-(α-hydroxybenzyl)-2-benzimidazole carbamate and 2-amino-5 benzoylbenzimidazole) were about five times the plasma AUCT found for mebendazole in patients on chronic therapy. It is suggested that the slower clearance of these polar metabolites relative to mebendazole results from enterohepatic recycling. Since mebendazole is also highly plasma protein bound, caution should be observed in administering mebendazole to patients with liver disease. Concentrations of mebendazole found in the tissue and cyst material collected from two patients during surgery ranged from 59.5 to 206.6 ng/g wet weight.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00542462
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  • 8
    Electronic Resource
    Electronic Resource
    Preliminary observations on the biliary elimination of mebendazole and its metabolites in patients with echinococcosis (1983)
    Springer
    European journal of clinical pharmacology 25 (1983), S. 81-84 
    Details
    ISSN: 1432-1041
    Keywords: mebendazole ; echinococcosis ; metabolism ; biliary excretion ; hepatic damage ; hepatic clearance ; conjugate formation ; plasma level
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The biliary excretion of mebendazole has been investigated in two patients to whom it was given for the treatment of echinococcosis, although it was found to be only partly effective. Oral mebendazole was extensively metabolized and the conjugated parent substance and its metabolites were excreted in the bile. One patient without cholestasis and with normal liver function had an apparent total biliary clearance (776 ml/min) which approached the hepatic plasma flow. The other patient with cholestasis and impairment of the hepatic drug metabolizing capacity showed a drastically reduced apparent total biliary clearance of 3.8 ml/min. The average plasma level of mebendazole was significantly lower in the former and higher in the latter patient (0.06 and 0.91 nmol/ml, respectively). The data suggest that impaired metabolism and/or biliary elimination can account for the higher plasma mebendazole level in patients with liver damage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00544020
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  • 9
    Electronic Resource
    Electronic Resource
    Changes in maize-stalk proteins during ear development (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 87 (1993), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Although the stalk of maize (Zea mays L.) functions as a reservoir for N, little is known of qualitative changes which accompany the remobilization of N to the developing ear. SDS-PAGE analysis revealed that certain stalk proteins were lost, whereas others were not. The removal of ears and the prevention of pollination eliminated the selective protein loss. The use of 15N labelling showed that some stalk-protein fractions turned over faster with ear development, whereas the turnover of others was unchanged or slowed. The data indicate that at least 7 proteins function as temporary storage forms of N in the stalk, and that they are degraded during the first 3 weeks after silking to provide organic N for ear development.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1993.tb08785.x
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  • 10
    Electronic Resource
    Electronic Resource
    Distribution and persistence of temporary wetland habitats in arid Australia in relation to climate (2001)
    Melbourne, Australia : Blackwell Science Asia Pty. Ltd.
    Austral ecology 26 (2001), S. 0 
    Details
    ISSN: 1442-9993
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The distribution and area of temporary wetlands across the arid zone of Australia are highly variable. Any change in their distribution or extent due to climate change and/or extraction of water has the potential to adversely impact dependent biota. Satellite imagery was used to determine the spatial and temporal distribution of wetlands across arid Australia over an 11-year period. Synoptic climate data were examined to identify the weather systems that caused wetland filling events. Simple threshold models relating rainfall to wetland filling for seven large regions of Australia were developed to examine patterns of wetland filling over the last 100 years. These data were used to examine the climatic processes that drive wetland filling and the likely impacts of climate change on wetland distribution. The strongest climatic influence on wetland filling in the arid zone was tropical weather systems. Their influence extended into southern regions and their effects were often widespread. Variation in wetland area in all regions of the arid zone was high. The Lake Eyre Basin experienced more large flood events than other regions and had the most large, persistent wetlands that remain unregulated by humans. Hindcasting of past filling events indicated that there was a general pattern of frequent wetland filling across inland Australia in the 1910s, 1950s and 1970s, and less frequent wetland filling in the late 1920s, 1930s and 1960s. Furthermore, there appeared to be no period greater than 12 months over the previous 95 years when there was no predicted wetland filling in the arid zone. Wetland ecosystems dependent on a few infrequent heavy rainfalls are clearly vulnerable to any change in frequency or magnitude of these events. Climate change that results in a drying or reduced frequency of large flood events, exacerbated by extraction of water for agriculture, could be catastrophic for some biota, particularly waterbirds, which use a mosaic of wetland habitat at broad spatial scales.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1442-9993.2001.01122.x
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