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  • 1
    Monograph available for loan
    Monograph available for loan
    Interdisciplinary Research and Trans-disciplinary Validity Claims (2015)
    Cham : Springer International Publishing
    Details
    Call number: IASS 16.89795
    Description / Table of Contents: Interdisciplinarity has seemingly become a paradigm for modern and meaningful research. Clearly, the interdisciplinary modus of deliberation enables to unfold relevant but quite different disciplinary perspectives to the reflection of broader scientific questions or societal problems. However, whether the comprehensive results of interdisciplinary reflection prove to be valid or to be acceptable in trans-disciplinary terms depends upon certain preconditions, which have to be fulfilled for securing scientific quality and social trust in advisory contexts. The present book is written by experts and practitioners of interdisciplinary research and policy advice. It analyses topical and methodological approaches towards interdisciplinarity, starting with the current role of scientific research in society. The volume continues with contributions to the issues of knowledge and acting and to trans-disciplinary deliberation. The final conclusions address the scientific system as substantial actor itself as well as the relevant research and education politics
    Type of Medium: Monograph available for loan
    Pages: XVI, 195 p. 6 illus., 4 illus. in color
    Edition: Online edition Springer eBook Collection. Engineering
    ISBN: 9783319114002 , 9783319113999
    Series Statement: Ethics of Science and Technology Assessment, Schriftenreihe der EA European Academy of Technology and Innovation Assessment GmbH 43
    DOI: 10.1007/978-3-319-11400-2
    Language: English
    Note: IntroductionScience in Society -- Knowing and Acting -- Trans-disciplinary Deliberation -- Conclusions/Recommandations..
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  • 2
    Electronic Resource
    Electronic Resource
    Casing Leakage in Monitoring Wells: Detection, Confirmation, and Prevention (1993)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water monitoring & remediation 13 (1993), S. 0 
    Details
    ISSN: 1745-6592
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: A small but significant proportion of all existing monitoring wells may be affected by leakage through the casing, usually at joints. Casing leakage can render data obtained from a monitoring well unreliable. Anomalous water level, water quality, or isotope data from a particular well are an indication of possible leakage. The occurrence of a casing leak can be confirmed by means of a pressure test using water. The magnitude of the leakage flow can be estimated from the pressure test or from the observed head anomaly. Casing leaks can be largely prevented with adequate care during monitoring well installation, but the possibility that data may be affected by casing leaks should always be taken into account during hydrogeological investigations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6592.1993.tb00457.x
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  • 3
    Electronic Resource
    Electronic Resource
    Contamination from Sand-Bentonite Seal in Monitoring Wells Installed in Aquitards (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 35 (1997), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: A six year field experiment has shown that a sand-bentonite mixture used to seal monitoring wells in aquitards contributes solutes to the ground water sampled from these wells. Monitoring wells were installed at field sites with hydraulic conductivity (K) ranging from 5 × 10 -9 m/s to 3 × 1011 m/s. In most cases the boreholes remained dry during installation which allowed the placement of a dry powdered bentonite/sand mixture tagged with potassium bromide (KBr) to seal and separate sampling points. Over six years, wells were sampled periodically and ground-water samples were analyzed for Br and Cl and other major ions. Typical Br results ranged from 10 mg/1 to 35 mg/1 in the first 700 days, as compared to an estimated initial concentration in the seal material of about 75 mg/1. After six years the bromide concentrations had decreased to between 3 mg/1 and 5 mg/1. The total mass of Br removed in six years is less than 50% of that placed; therefore the contamination effects, although considerably diminished, persist. The trends of Br, Cl, Na, and SO4 indicate that varying degrees of contamination occur. These data show that the materials used to seal monitoring wells in aquitards can have a significant and long-lasting impact on the chemistry of the water in the wells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1997.tb00058.x
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  • 4
    Electronic Resource
    Electronic Resource
    Slug Tests with Storage Due to Entrapped Air (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 30 (1992), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Any air entrapped in the completion region of a piezometer endows that piezometer with storage due to the compressibility of the air. Such storage retards the recovery of water levels in the piezometer and leads to underestimation of formation hydraulic conductivity in the interpretation of slug tests. These effects appear to be greatest for piezometers with small-diameter casings installed in low-permeability formations where filter pack materials are placed dry around the piezometer intake. This paper presents (a) a method which accounts for storage due to entrapped air in slug test analysis; (b) examples illustrating the method; and (c) some recommendations for piezometer construction and slug test practice.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1992.tb00804.x
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  • 5
    Electronic Resource
    Electronic Resource
    Unsaturated and Saturated Flow in Response to Pumping of an Unconfined Aquifer: Field Evidence of Delayed Drainage (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 30 (1992), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: This paper revisits a long-standing problem in aquifer analysis. In particular, it provides a physically consistent explanation of the characteristic time-drawdown response of unconfined sand or gravel aquifers to pumping. It also provides a physical explanation for the low values of specific yield commonly obtained by type-curve matching procedures. Tensiometers and piezometers distributed throughout the saturated thickness were used to monitor, in great detail, the hydraulic response of an unconfined sand aquifer to pumping. A gamma moisture gauge and core samples were also used to obtain measurements of water content in the region of the declining water table. The results showed the early period of time-drawdown graphs to correspond with the period of increasing gradients. Excess storage of water was observed above the water table and was shown to be a necessary consequence of the vertical hydraulic gradients and the water-content/pressurehead relationship for the aquifer material. The excess storage decreased during the period of decreasing vertical gradients. The period of delayed drawdown was shown to be the result of the decline in excess storage. Contrary to most of the recent literature, the results show that drainage processes above the water table have a very significant effect on the response of unconfined aquifers to pumping. The results indicate further that the normal methods of analyzing time-drawdown curves for unconfined aquifers give excessively high values of storativity and values of specific yield that are unrealistically low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1992.tb01555.x
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  • 6
    Electronic Resource
    Electronic Resource
    Calculation of Constant-Rate Drawdowns from Stepped-Rate Pumping Tests (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 27 (1989), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: Drawdown and recovery data obtained for stepped- rate pumping tests can be used to calculate the drawdowns that would occur if the test were carried out a constant rate without stopping. The recovery phase of constant-rate pumping tests can be analyzed by the same method because cessation of pumping can be treated as a step change of pumping rate. The calculation assumes only that pumping during each step is at a constant rate, and that the principle of superposition is applicable, i.e., that the ground-water system is linear and time-invariant. It does not depend on the availability of theoretical expressions for the drawdown due to pumping. The calculation can be carried out for as long as water-level measurements are continued; however, possible errors in the values of calculated drawdown increase with increasing time, thus limiting the practical length of time for which the calculated values are reliable.The constant-rate drawdown curves characterize the response of the linear time-invariant ground-water system to pumping. They can be used for the determination of formation parameters if an appropriate theoretical model is available. They can also be used directly to predict drawdowns, and the scope of this application can be broadened by use of the reciprocity principle. In either case the use of recovery data can significantly extend the effective duration of pumping tests.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1989.tb00438.x
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  • 7
    Electronic Resource
    Electronic Resource
    An in vivo ^3^1P-NMR study of the possible regulation of glycogen phosphorylase a by phosphagen via phosphate in the abdominal muscle of the shrimp Crangon crangon
    Amsterdam : Elsevier
    Biochimica et Biophysica Acta (BBA)/Molecular Cell Research 929 (1987), S. 121-127 
    Details
    ISSN: 0167-4889
    Keywords: (Shrimp muscle) ; Glycogen phosphorylase a ; NMR, ^3^1P- ; Phosphagen
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0167-4889(87)90166-2
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  • 8
    Electronic Resource
    Electronic Resource
    Field Study of a Long and Very Narrow Contaminant Plume (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 32 (1994), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Notes: A contaminant plume more than 7,700 meters long and a few hundred meters wide has been delineated using a network of bundle piezometers. The location, concentration, and starting time of the source are well-defined. The plume occurs in a stratified, highly permeable, sand and gravel aquifer in which the ground-water flow is unusually steady in direction and magnitude. A ground-water velocity of 380 meters per annum and a longitudinal dispersivity of 60 to 120 meters are obtained by simulating chloride breakthrough data at 7,700 meters from the source. Simulation of the cross-sectional distribution of chloride concentrations at 5,500 meters shows the horizontal transverse dispersivity to be at most 0.10 meters. This very small maximum value for horizontal transverse dispersivity is two to four orders of magnitude smaller than values reported in the literature for plumes of similar lengths. It is postulated that the very weak lateral dispersion is due primarily to the steadiness of the ground-water flow.An ICP-MS, equipped with an ultrasonic nebulizer and active-film multiplier detector, is used to attempt to determine 54 trace elements directly in ground water. Lithium, arsenic, rubidium, strontium, barium, and antimony are found in the microgram-per-liter (part-per-billion = ppb) range. Most of the other elements are present at nanogram-per-liter (part-per-trillion = ppt) concentrations. Ion exchange preconcentration is utilized in order to improve the sensitivity for measuring the rare earth elements that exist at concentrations as low as 0.05 ppt for lutetium, thulium, and terbium. The formation of molecular species in the plasma produces false positive results for some of the elements. The presence of silicon or carbon dioxide interferes with the measurement of scandium, strontium interferes with rhodium and palladium, and barium interferes with europium. Correction procedures for these interferences are discussed. All together, the concentrations of the 54 elements in water from four Nevada springs span almost seven orders of magnitude.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1994.tb00940.x
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  • 9
    Electronic Resource
    Electronic Resource
    Phosphagen heterogeneity during reproductive cycle in the lugworm Arenicola marina (1989)
    Springer
    Naturwissenschaften 76 (1989), S. 275-276 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00368640
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  • 10
    Electronic Resource
    Electronic Resource
    Spermatozoa: models for studying regulatory aspects of energy metabolism (1996)
    Springer
    Cellular and molecular life sciences 52 (1996), S. 487-494 
    Details
    ISSN: 1420-9071
    Keywords: ATP-homeostasis ; phosphagen function ; NMR-spectroscopy ; spermatozoa ; sperm motility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Spermatozoa are highly specialized cells, and they offer advantages for studying several basic aspects of metabolic control such as the role of adenosine triphosphate-(ATP)-homeostasis for cell function, the mechanisms of fatigue and metabolic depression, the metabolic channelling through the cytoplasm and the organization and regulation of glycolytic enzymes. Spermatozoa of four species with different reproductive modes are, introduced and the first results are presented: Spermatozoa of the marine wormArenicola marina are well adapted to external fertilization in sea water with fluctuating oxygen tension: they are motile for several hours in oxygen-free sea water, even when the ATP level is dramatically reduced. Anaerobic ATP production occurs by alanine, acetate and propionate fermentation probably by the same pathways known from somatic cells of this species. Under aerobic conditions the phosphagen system might function like a shuttle for energy-rich phosphate from mitochondria to the dynein-ATPases. Storage of turkey and carp spermatozoa for several hours without exogenous substrates and oxygen results in the degradation of phosphocreatine and ATP to inorganic phosphate and adenosine monophosphate (AMP), respectively. Despite low energy charges, stored spermatozoa of both species are capable of progressive movements. In carp spermatozoa fatigue of motility is not accompanied by the dramatic acidosis one discusses as an important effect in muscle fatigue. Energy metabolism of boar spermatozoa is typically based on glycolysis consuming extracellular carbohydrates and producing lactate and protons. The sperm seem to tolerate low intracellular pH (〈6.5). The lack of a phosphagen system (no energy shuttle from mitochondria to the distal dynein-ATPases) is probably compensated by a high glycolytic ATP-production in the mitochondria-free piece of the flagellum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01919321
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