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  • 1
    Call number: PIK N 071-99-0141
    Type of Medium: Monograph available for loan
    Pages: 507 S.
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Berlin : Selbstverlag
    Call number: PIK T 240-95-0132
    Type of Medium: Monograph available for loan
    Pages: 35 p.
    Series Statement: FFU rep 90-9
    Location: A 18 - must be ordered
    Branch Library: PIK Library
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  • 3
    Call number: IASS 16.91044
    Type of Medium: Monograph available for loan
    Pages: XVI, 267 S , Ill., graph. Darst. , 235 mm x 155 mm
    ISBN: 364238594X (hbk) , 9783642385940 (hbk) , 3662522225 (pbk) , 9783662522226 (pbk) , 9783642385957 (eBook)
    Language: English
    Note: Foreword; Preface; Acknowledgments; Contents; Abbreviations; Part I The Arctic Environment; 1 Introduction to the Arctic ,; Abstract; 1.1 Arctic Marine Area; 1.2 Law of the Sea in the Arctic Marine Area; 1.3 Arctic Council; 1.4 Arctic Policies of the EU and US; 1.4.1 EU Arctic Policy and Competences; 1.4.2 US Arctic Policy; 1.5 EU and US Marine Policy; 1.5.1 EU Maritime Policy; 1.5.2 US Ocean Policy; 1.6 Conclusion; References; 2 The Arctic Marine Environment; Abstract; 2.1 Introduction; 2.2 The Arctic Environment; 2.2.1 Marine Environment; 2.2.2 Land-Based Impacts on the Marine Environment. , 2.3 Specific Threats2.3.1 Climate Change; Sea Ice Reduction; Melting Glaciers and Rising Sea Levels; Greenhouse Gas Release by Melting Permafrost; Ocean Acidification; 2.3.2 Chemicals and Air Pollution; 2.3.3 Fisheries; 2.3.4 Shipping; 2.3.5 Oil and Gas Extraction; 2.3.6 Tourism; 2.3.7 Nuclear and Radioactive Waste (Including Military Use); 2.4 Conclusion; References; 3 Environmental Governance in the Marine Arctic ,; Abstract; 3.1 Introduction; 3.2 Environmental Governance; 3.3 Legal and Policy Framework; 3.3.1 Global Agreements and Institutions; 3.3.2 Regional and Sub-Regional Regimes. , 3.3.3 Informal Approaches and Initiatives3.4 Analysis of Governance Shortcomings; 3.5 Perspectives on the Way Forward: Policy Pathways; 3.5.1 Principles of Environmental Governance; 3.5.2 Conclusion and Questions for Discussion; References; 4 Arctic Indigenous Peoples and the Challenge of Climate Change ,; Abstract; 4.1 Introduction; 4.2 Arctic Indigenous Peoples; 4.2.1 Traditional Harvesting and Mixed Economies; 4.2.2 Challenges for Indigenous Societies and Culture; 4.2.3 Political and Legal Framework; 4.2.4 Arctic Cooperation. , 4.3 Climate Change Impacts, Stressors, and Indigenous Vulnerability4.3.1 Primary Impacts on Livelihoods, Harvesting, Health, and Infrastructure; 4.3.2 Impacts on Northern Economies, Societies, Cultures and Health; 4.4 Adaptive Capacity and Proposed Responses to Climate Change; 4.4.1 The Concepts of Adaptation and Adaptive Capacity; 4.4.2 Autonomous Adaptations; 4.4.3 Adaptation Planning and Governance; 4.4.4 Barriers to Adaptation; 4.5 Criticism Towards Vulnerability and Adaptation Approaches; 4.5.1 Crisis Narrative and Resilience Language; 4.5.2 Adaptation Governance as Intervention. , 4.5.3 Using Traditional Knowledge4.6 Empowerment as a Primary Response; 4.6.1 Co-management, Participatory Capacities, and Clear Outcomes of Participatory Engagement; 4.6.2 Indigenous Rights; 4.7 Conclusion: A Holistic Response; References; Part II Impacts and Activities in the Marine Arctic; 5 Status and Reform of International Arctic Fisheries Law; Abstract; 5.1 Introduction; 5.2 Arctic Fish Stocks, Fisheries, and Climate Change; 5.3 International Legal and Policy Framework for Arctic Fisheries Management; 5.3.1 Interests, Rights, Obligations, and Jurisdiction. , 5.3.2 Substantive Fisheries Standards.
    Branch Library: RIFS Library
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  • 4
    ISSN: 1432-072X
    Keywords: Key words Amino acid transport ; Uptake ; Excretion ; Diffusion ; Threonine ; Corynebacterium glutamicum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Transmembrane threonine fluxes (i.e., uptake, diffusion, and carrier-mediated excretion) all contribut-ing to threonine production by a recombinant strain of Corynebacterium glutamicum, were analyzed and quantitated. A threonine-uptake carrier that transports threonine in symport with sodium ions was identified. Under production conditions (i.e., when internal threonine is high), this uptake system catalyzed predominantly threonine/threonine exchange. Threonine export via the uptake system was excluded. Threonine efflux from the cells was shown to comprise both carrier-mediated excretion and passive diffusion. The latter process was analyzed after inhibition of all carrier-mediated fluxes. Threonine diffusion was found to proceed with a first-order rate constant of 0.003 min–1 or 0.004 μl min–1 (mg dry wt.)–1, which corresponds to a permeability of 8 × 10–10 cm s–1. According to this permeability, less than 10% of the efflux observed under optimal conditions takes place via diffusion, and more than 90% must result from the activity of the excretion carrier. In addition, the excretion carrier was identified by (1) inhibition of its activity by amino acid modifying reagents and (2) its dependence on metabolic energy in the form of the membrane potential. Activity of the excretion system depended on the membrane potential, but not on the presence of sodium ions. Threonine export in antiport against protons is proposed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 164 (1995), S. 98-103 
    ISSN: 1432-072X
    Keywords: Key words Glutamine ; Amino acid transport ; Solute ; uptake ; Corynebacterium glutamicum
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Corynebacterium glutamicum took up glutamine by a sodium-dependent secondary transport system. Both the membrane potential and the sodium gradient were driving forces. Glutamine uptake showed Michaelis-Menten kinetics, with a K m of 36 μM and a V max of 12.5 nmol min–1 (mg dry weight)–1 at pH 7. Despite a pH optimum in the alkaline range around pH 9, it was shown that uncharged glutamine is the transported species. The affinity for the cotransported sodium was relatively low; an apparent K m of 1.4 mM was determined. Among various substrates tested, only asparagine, when added in 50-fold excess, led to an inhibition of glutamine transport. It was concluded that glutamine uptake occurs via a specific transport system in symport with at least one sodium ion.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-072X
    Keywords: Key wordsCorynebacterium glutamicum ; PutP ; Proline transport ; Compatible solutes ; Osmoregulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Corynebacterium glutamicum accumulates the compatible solutes proline, glycine betaine, and ectoine under conditions of high osmolality. Uptake of proline is mediated by both a high-affinity and a low-affinity secondary transport system. The low-affinity uptake system also accepts glycine betaine and ectoine as substrates. In the present study, the gene encoding the high-affinity proline uptake system PutP was isolated by heterologous complementation of Escherichia coli mutant strain WG389, which lacks the transport systems BetT, PutP, ProP, and ProU and is unable to synthesize proline and glycine betaine. This gene (putP) encodes a protein of 524 amino acids that shares identity with the proline transport systems PutP of E. coli, Staphylococcus aureus, Salmonella typhimurium, Haemophilus influenzae, and Klebsiella pneumoniae. Functional studies of PutP synthesized in E. coli mutant strain MKH13, which also lacks the transport systems for compatible solutes and is unable to synthesize glycine betaine, revealed that this carrier system is not regulated by the external osmolality on the level of activity. K m values of 7.6 mM for proline and 1.3 mM for sodium as cotransported ion were determined. Deletion of the putP gene allowed the functional characterization of another proline uptake system with low affinity.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-072X
    Keywords: Methanobacterium thermoautotrophicum ; Nucleotide transport ; Nucleotide binding ; Protoplasts ; Membrane vesicles ; Methanochondrion concept
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In order to test the “Methanochondrion concept”, uptake of adenine nucleotides in various membrane preparations of Methanobacterium thermoautotrophicum was studied. The uptake showed properties which are in general interpreted as indicative of a transport mechanism: (i) kinetics in the time range of minutes, (ii) temperature dependence, (iii) substrate specificity and (iv) failure to remove the substrate by extensive washing. However, nucleotide transport as an interpretation of this “uptake” can definitely be excluded. Not only an exchange mechanism of the mitochondrial type, but also a general exchange or an uniport mechanism was ruled out. In contrast, the “nucleotide uptake” was shown to be actually a tight and specific binding of ADP and ATP to binding sites at the interior side of the cell membrane. This was conclusively demonstrated in protoplasts obtained from M. thermoautotrophicum cells. In these protoplasts which do not contain internal membranes also nucleotide binding was observed, but only after disruption of the plasma membrane by osmotic lysis, which leads to the exposure of binding sites.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 169 (1998), S. 411-416 
    ISSN: 1432-072X
    Keywords: Key wordsCorynebacterium glutamicum ; Urea uptake ; Secondary transport ; Urease activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract When Corynebacterium glutamicum is grown with a sufficient nitrogen supply, urea crosses the cytoplasmic membrane by passive diffusion. A permeability coefficient for urea diffusion of 9 × 10–7 cm s–1 was determined. Under conditions of nitrogen starvation, an energy-dependent urea uptake system was synthesized. Carrier-mediated urea transport was catalyzed by a secondary transport system linked with proton motive force. With a K m for urea of 9 μM, the affinity of this uptake system was much higher than the affinity of urease towards its substrate (K m approximately 55 mM urea). The maximum uptake velocity depended on the expression level and was relatively low [2–3.5 nmol min–1 (mg dry wt.)–1].
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 34 (1988), S. 339-342 
    ISSN: 1432-1041
    Keywords: asthma ; respiratory distress syndrome ; wheezy bronchitis ; salbutamol ; beta-agonists ; cystic fibrosis ; infants ; whole-body plethysmography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effects of salbutamol 0.225 mg/kg given systemically on lung function in infants have been measured by whole-body plethysmography in 60 children with broncho-pulmonary diseases (24 after respiratory distress syndrome, 21 with wheezy bronchitis and 15 with cystic fibrosis). A therapeutic action was demonstrated in 74% of the tests, taking into account changes in end-expiratory resting level (state of inflation) and associated changes in airway resistance. There was a significant decrease in thoracic gas volume as an estimate of pulmonary hyperinflation, which was due to improved alveolar ventilation and to a consequential decrease in end-expiratory resting level. The improvement in airway resistence, as an estimate of airway obstruction, reflects a substantial relaxation of bronchial smooth muscle increasing the diameter of the airways. The extent to which similar results may be achieved by topical administration of nebulised beta agonists remains to be determined.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Section 41 (1985), S. 1387-1389 
    ISSN: 0584-8539
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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