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  • 1
    Keywords: Aufsatzsammlung ; Glaziales Sediment ; Kohlenwasserstofflagerstätte
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (401 Seiten)
    ISBN: 1862393486 , 9781862393486
    Series Statement: Geological Society special publication 368
    DDC: 551.315
    RVK:
    Language: English
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  • 2
    Keywords: Hydrocarbon reservoirs ; Rocks Fracture ; Konferenzschrift ; Erdölgeologie ; Speichergestein ; Sediment ; Kristallin ; Klüftung ; Riss ; Carbonatgestein ; Erdöllagerstätte ; Erdgaslagerstätte ; Permeabilität ; Siliziklastisches Gestein ; Störung
    Description / Table of Contents: Naturally fractured reservoirs constitute a substantial percentage of remaining hydrocarbon resources; they create exploration targets in otherwise impermeable rocks, including under-explored crystalline basement; and they can be used as geological stores for anthropogenic carbon dioxide. Their complex behaviour during production has traditionally proved difficult to predict, causing a large degree of uncertainty in reservoir development. The applied study of naturally fractured reservoirs seeks to constrain this uncertainty by developing new understanding, and is necessarily a broad, integrated, interdisciplinary topic. This book addresses some of the challenges and advances in knowledge, approaches, concepts, and methods used to characterize the interplay of rock matrix and fracture networks, relevant to fluid flow and hydrocarbon recovery. Topics include: describing, characterizing and identifying controls on fracture networks from outcrops, cores, geophysical data, digital and numerical models; geomechanical influences on reservoir behaviour; numerical modelling and simulation of fluid flow; and case studies of the exploration and development of carbonate, siliciclastic and metamorphic naturally fractured reservoirs. --
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (VI, 425 Seiten)
    ISBN: 9781862393554
    Series Statement: Geological Society special publication 374
    DDC: 553.28
    RVK:
    RVK:
    Language: English
    Note: Investigating fracture networks using outcrop, core and geophysical dataNumerical and statistical simulations and modelsCase studies.
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  • 3
    Publication Date: 2022-05-25
    Description: Author Posting. © Inter-Research, 2006. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 310 (2006): 271-295, doi:10.3354/meps310271.
    Description: Cetacean–habitat modeling, although still in the early stages of development, represents a potentially powerful tool for predicting cetacean distributions and understanding the ecological processes determining these distributions. Marine ecosystems vary temporally on diel to decadal scales and spatially on scales from several meters to 1000s of kilometers. Many cetacean species are wide-ranging and respond to this variability by changes in distribution patterns. Cetacean–habitat models have already been used to incorporate this variability into management applications, including improvement of abundance estimates, development of marine protected areas, and understanding cetacean–fisheries interactions. We present a review of the development of cetacean–habitat models, organized according to the primary steps involved in the modeling process. Topics covered include purposes for which cetacean–habitat models are developed, scale issues in marine ecosystems, cetacean and habitat data collection, descriptive and statistical modeling techniques, model selection, and model evaluation. To date, descriptive statistical techniques have been used to explore cetacean–habitat relationships for selected species in specific areas; the numbers of species and geographic areas examined using computationally intensive statistic modeling techniques are considerably less, and the development of models to test specific hypotheses about the ecological processes determining cetacean distributions has just begun. Future directions in cetacean–habitat modeling span a wide range of possibilities, from development of basic modeling techniques to addressing important ecological questions.
    Description: Funding from the U.S. Navy and the Strategic Environmental Research and Development Program (SERDP) supported this research under Projects CS-1390 and CS-1391.
    Keywords: Cetacean–habitat modeling ; Predictive models ; Regression models ; Cross validation ; Spatial autocorrelation ; Classification models ; Ordination ; Environmental envelope models
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 9 (1995), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Octreotide has proven therapeutically effective in carcinoid syndrome, but the rarity of carcinoid tumors has hampered detailed dose-ranging studies. This study analysed published dose-titration data on octreotide use in carcinoid patients to (a) investigate the relation between octreotide dose and efficacy and (b) establish octreotide dosing recommendations for maximum therapeutic benefit. Method: An exhaustive, computer-assisted literature search for published articles employing octreotide to manage patients with carcinoid syndrome was performed using several databases. The relation between octreotide dose and efficacy in decreasing urinary 5-hydroxyindoleacetic acid (5-HIAA) levels, flushing and diarrhoea was analysed for seven dose ranges by pooling data from selected articles. Results: Analysis of data compiled from 62 published studies revealed that maximum effective therapeutic doses of octreotide effectively controlled symptoms in up to 93 % of patients, and that increasing the dose of octreotide is associated with increased benefit with respect to control of flushing, diarrhoea and 5-HIAA levels. Conclusions: We recommend starting octreotide therapy at 100 μg subcutaneously t.d.s. in patients with mild/moderate, non-life-threatening carcinoid syndrome. Since therapeutic response to octreotide varies markedly among patients, we recommend titrating the octreotide dose in increments of 50–100 μg every 8 h until adequate symptom control is achieved.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 4 (1990), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The mechanism for secretin-induced gastrin release in the Zollinger-Ellison syndrome is uncertain. We evaluated whether the stimulatory effect of intravenous secretin on gastrin release was partly mediated through a beta-adrenergic stimulatory mechanism. Serum gastrin concentrations and heart rate were monitored in six patients with the Zollinger-Ellison syndrome. Secretin (2 clinical units/kg) increased mean serum gastrin concentrations from 1558 pg/ml basally to a peak of 3683 pg/ml (136% above baseline). This increase was not altered by pretreatment with 2 mg of propranolol intravenously, a dose which in previous studies blocked terbutaline-induced gastrin release. Secretin increased heart rate by 14 beats/min (20% above base-line) and this also was not altered by propranolol pretreatment. Thus, the stimulatory effects of secretin on gastrinoma cells and the heart do not appear to be mediated by beta-adrenergic receptors.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Alimentary pharmacology & therapeutics 2 (1988), S. 0 
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In dogs beta-adrenoreceptor agonists inhibit gastric acid secretion stimulated by exogenous gastrin to a much greater extent than acid secretion stimulated by exogenous histamine. One possible explanation for this observation is that endogenous histamine is important in gastrin-mediated acid secretion and that isoprenaline and related beta-adrenoreceptor agonists block gastric mucosal histamine release. This possibility was tested in the present study in gastric lumen-perfused anaesthetized rats. Intravenous infusion of isoprenaline (12 μg kg−1 h−1) inhibited maximal, pentagastrin-stimulated acid output by 50–70% (P 〈 0.01), but had no significant inhibitory effect on the maximal acid secretory response to histamine. In contrast to its inhibitory effect on gastrin-stimulated acid output, isoproterenol had no effect on gastric histamine output during pentagastrin infusion. We conclude that isoprenaline selectively inhibits gastrin-stimulated acid secretion in the rat, as in the dog, and by a mechanism other than inhibiting gastric histamine release.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 201 (1964), S. 68-69 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A priori knowledge of the value of the order of reaction is assumed in most derivations1,3,4, while the method2 which allows for the determination of both the activation energy and the order of reaction suffers from a number of disadvantages6,7. In the reaction aA(8) ?〉 bB(8) + cG(g) the rate of ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 190 (1961), S. 805-806 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The behaviour may be represented schematically : [ Cr(H20)6]n (X04)f a〉H2'0, where X = As, P or S, Work on the solution and solid phases of the systems: Cr2O3-P2O5-H2O at 0 , 4001, and 70 2, Cr2O3-As2O5-H2O at 25 3 has already been reported. The system Cr2O3-SO3-H2O is being studied at 25 and 70 ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 10 (1976), S. 143-143 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 27 (1983), S. 427-438 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Dieses Referat umreisst einige zeitgemässe Entwicklungen der Thermoanalyse. Es wird der derzeitige Stand der Standardmethoden besprochen, besonders derjenigen, die durch die American Society for Testing + Materials (ASTM) veröffentlicht wurden, und die ein thermoanalytisches Verfahren verwenden. In zweiter Reihe wird eine einfache Methode zur Bestimmung der oxydation Stabilität des Polyäthylens mittels DTA bekanntgemacht. Zum Schluss übersieht die Arbeit einige neuere Arbeiten, die an festen Heizmaterialien und Heizölen durchgeführt wurden.
    Abstract: Резюме В обозрении представ лены общие наброски некоторых текущих ра зработок в термическом анализ е. Используя методы те рмического анализа, обсуждено со стояние в настоящее время ста ндартных методов, в ос обенности, выдаваемых ASTM. Во второ й ' части представлено о бозрение простого ме тода определения методом ДТА устойчивости полиэтилена к окисле нию. В заключительной части рассмотрены некотор ые из недавних работ, выполненных с и скопаемым топливом и топливными маслами.
    Notes: Abstract This review paper outlines some current developments in thermal analysis. The current status of standard methods, in particular those issued by the American Society for Testing and Materials (ASTM), using thermal analysis techniques are discussed. In the second place a simple method for the determination of the oxidative stability of polyethylene by DTA is reviewed. Finally the paper surveys some of the more recent work being carried out in fossil fuels and fuel oils.
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