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Monograph available for loan

Geomorphometry : concepts, software, applications (2009)

Hengl, Tomislav [Hrsg.] ; Reuter, Hannes I. [Hrsg.]

Amsterdam [u.a.] : Elsevier

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Call number: M 09.0160

In: Developments in soil science

Description / Table of Contents: A guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software. It offers instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences.Geomorphometry is the science of quantitative land-surface analysis. It draws upon mathematical, statistical, and image-processing techniques to quantify the shape of earth's topography at various spatial scales. The focus of geomorphometry is the calculation of surface-form measures (land-surface parameters) and features (objects), which may be used to improve the mapping and modelling of landforms to assist in the evaluation of soils, vegetation, land use, natural hazards, and other information. This book provides a practical guide to preparing Digital Elevation Models (DEM) for analysis and extracting land-surface parameters and objects from DEMs through a variety of software.It further offers detailed instructions on applying parameters and objects in soil, agricultural, environmental and earth sciences. This is a manual of state-of-the-art methods to serve the various researchers who use geomorphometry. Soil scientists will use this book to further learn the methods for classifying and measuring the chemical, biological, and fertility properties of soils and gain a further understaing of the role of soil as a natural resource.Geologists will find value in the instruction this book provides for measuring the physical features of the soil such as elevation, porosity, and structure which geologists use to predict natural disasters such as earthquakes, volcanoes, and flooding.Technical details on a variety of software packages allow researchers to solve real-life mapping issues. This book provides soil and agronomy researchers best practice techniques for soil data analysis to assist in enhanced land-use and planning. It offers geologists essential tactics for better environmental management by providing a comprehensive analysis of the physical features of soil. The companion website includes access to the latest technological advancements previously unpublished in any other comprehensive source: geomorphometry software, DEM data sources, and applications.

Type of Medium: Monograph available for loan

Pages: xxix, 765 S.

ISBN: 0123743451 , 978-0-12-374345-9

Series Statement: Developments in soil science 33

Classification:

Geography and Geomorphology

Location: Upper compact magazine

Branch Library: GFZ Library

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Geochemical analysis of surface water samples of a tidal basin of the German Wadden Sea (2007)

Dellwig, Olaf ; Bosselmann, K ; Kölsch, S ; [et al.]

PANGAEA

In: Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky University of Oldenburg, Germany

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Publication Date: 2023-10-28

Keywords: Alkalinity, total; Aluminium oxide; Antimony; Barium; Biogeochemistry of Tidal Flats; Bismuth; BrumsackHJ_SENK_020213_TP3; Cadmium; Calcium oxide; Carbon, inorganic, total; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon, total; Chromium; Cobalt; Copper; DATE/TIME; DEPTH, water; ICP-MS, see further details; ICP-OES, see further details; Iron oxide, Fe2O3; LATITUDE; Lead; LONGITUDE; Magnesium oxide; Manganese; Molybdenum; Nickel; Otzumer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Phosphorus pentoxide; Potassium oxide; Rubidium; see further details; SPM_GF, see further details; SPM_PC, see further details; Strontium; Suspended matter, particulate/solids; Thallium; Titanium dioxide; Uranium; Vanadium; Water sample; WATT; WS; Yttrium; Zinc

Type: Dataset

Format: text/tab-separated-values, 856 data points

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Geochemical analysis of surface water samples of a tidal basin of the German Wadden Sea at site SENK (2007)

Dellwig, Olaf ; Bosselmann, K ; Kölsch, S ; [et al.]

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In: Institute for Chemistry and Biology of the Marine Environment, Carl-von-Ossietzky University of Oldenburg, Germany

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Publication Date: 2023-10-28

Keywords: Alkalinity, total; Aluminium oxide; Antimony; Barium; Biogeochemistry of Tidal Flats; Bismuth; BrumsackHJ_SENK_020213_TP3; BrumsackHJ_SENK_020527_TP3; BrumsackHJ_SENK_020820_TP3; BrumsackHJ_SENK_021118_TP3; BrumsackHJ_SENK_030210_TP3; BrumsackHJ_SENK_030211_TP3; BrumsackHJ_SENK_030422_TP3; BrumsackHJ_SENK_030424_TP3; BrumsackHJ_SENK_030722_TP3; BrumsackHJ_SENK_030811_TP3; BrumsackHJ_SENK_030812_TP3; BrumsackHJ_SENK_031110_TP3; BrumsackHJ_SENK_031112_TP3; Cadmium; Calcium oxide; Carbon, inorganic, total; Carbon, organic, dissolved; Carbon, organic, particulate; Carbon, total; Central Backbarrier Area, Spiekeroog Backbarrier Tidal Flat, German Bight; Cerium; Chromium; Cobalt; Copper; DATE/TIME; DEPTH, water; Event label; Iron oxide, Fe2O3; Lanthanum; LATITUDE; Lead; LONGITUDE; Magnesium oxide; Manganese; Molybdenum; Nickel; Otzmer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Otzumer Balje Tidal Inlet, Spiekeroog Backbarrier Tidal Flat, German Bight; Phosphorus pentoxide; Potassium oxide; Rubidium; see further details; Strontium; Suspended matter, particulate/solids; Thallium; Titanium dioxide; Uranium; Vanadium; Water sample; WATT; WS; Yttrium; Zinc; Zirconium

Type: Dataset

Format: text/tab-separated-values, 13814 data points

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(Table 3) Interannual variability of total mass flux at the deep sediment trap site CBmeso between 1988 and 2006 (2009)

Fischer, Gerhard ; Reuter, Christian ; Karakas, Gökay ; [et al.]

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In: Supplement to: Fischer, Gerhard; Reuter, Christian; Karakas, Gökay; Nowald, Nicolas; Wefer, Gerold (2009): Offshore advection of particles within the Cape Blanc filament, Mauritania: Results from observational and modelling studies. In: Freon, P; Barange, M; Aristegui, J (eds.) Eastern Boundary Upwelling systems: Integrative and Comparative Approaches. Special Edition, Progress in Oceanography, 83(1-4), 322-330, https://doi.org/10.1016/j.pocean.2009.07.023

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Publication Date: 2024-02-02

Description: This article will review major features of the 'giant' Cape Blanc filament off Mauritania with regard to the transport of chlorophyll and organic carbon from the shelf to the open ocean. Within the filament, chlorophyll is transported about 400 km offshore. Modelled particle distributions along a zonal transect at 21°N showed that particles with a sinking velocity of 5 m d**-1 are advected offshore by up to 600 km in subsurface particle clouds generally located between 400 m and 800 m water depth, forming an Intermediate Nepheloid Layer (INL). It corresponds to the depth of the oxygen minimum zone. Heavier particles with a sinking velocity of 30 m d**-1 are transported from the shelf within the Bottom Layer (BL) of more than 1000 m thickness, largely following the topography of the bottom slope. The particles advected within the BL contribute to the enhanced winter-spring mass fluxes collected at the open-ocean mesotrophic sediment trap site CB-13 (200 nm offshore), due to a long distance advection in deeper waters. The lateral contribution to the deep sediment trap in winter-spring is estimated to be 63% and 72% for organic carbon and total mass, respectively, whereas the lateral input for both components on an annual basis is estimated to be in the order of 15%. Biogenic opal increases almost fivefold from the upper to the lower mesotrophic CB-13 trap, also pointing to an additional source for biogenic silica from eutrophic coastal waters. Blooms obviously sink in smaller, probably mesoscale-sized patches with variable settling rates, depending on the type of aggregated particles and their ballast content. Generally, particle sinking rates are exceptionally high off NW Africa. Very high chlorophyll values and a large size of the Cape Blanc filament in 1998-1999 are also documented in enhanced total mass and organic carbon fluxes. An increasing trend in satellite chlorophyll concentrations and the size of the Cape Blanc filament between 1997 and 2008 as observed for other coastal upwelling areas is not documented.

Keywords: Cape Blanc; CB1_trap; CB10; CB10_trap; CB12; CB12_trap; CB15; CB16; CB2_trap; CB3_trap; CB9_trap; Center for Marine Environmental Sciences; Comment; DATE/TIME; Date/time end; DEPTH, water; Depth water equivalent; Duration, number of days; Elevation 2; Elevation of event; Event label; Latitude 2; Latitude of event; Longitude 2; Longitude of event; M12/1; M6/6; M65/2; M9/4; MARUM; Meteor (1986); MOOR; Mooring; Reference/source; Sample code/label; see reference(s); Total mass, flux; Trap; TRAP

Type: Dataset

Format: text/tab-separated-values, 97 data points

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5

Electronic Resource

Can Supply Restrictions Lower Price? Violence, Drug Dealing and Positional Advantage (2006)

Caulkins, Jonathan P ; Reuter, Peter ; Taylor, Lowell J

Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)

Contributions to economic analysis & policy 5.2006, 1, art3

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ISSN: 1538-0645

Source: Berkeley Electronic Press Academic Journals

Topics: Economics

Notes: The standard model of markets for illicit drugs predicts that tougher enforcement against sellers will raise prices; yet cocaine and heroin prices have fallen substantially during a period of massive increases in enforcement. We present a model in which the basic mechanisms at work in the textbook model may be substantially altered by an important feature of illegal markets--violence that creates inheritable heterogeneity along a dimension that both determines relevant production cost and imposes externalities on other suppliers. Dealers frequently make use of violence and threat of violence in the normal course of trade. A seller who is particularly effective in the use of violence may face lower enforcement costs than other dealers and generate an external cost borne by those sellers. Together these features generate a number of counter-intuitive policy implications. For example the arrest of a particularly violent dealer reduces external costs borne by other dealers. The net effect is a possible reduction in costs for the marginal dealer and hence a reduction in price.

Type of Medium: Electronic Resource

URL: http://www.bepress.com/bejeap/contributions/vol5/iss1/art3

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Electronic Resource

Haematology and leucocyte morphology of wild caught Thunnus maccoyii (2005)

Rough, K. M. ; Nowak, B. F. ; Reuter, R. E.

Oxford, UK; Malden, USA : Blackwell Science Ltd

Journal of fish biology 66 (2005), S. 0

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ISSN: 1095-8649

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology

Notes: The haematology of wild southern bluefin tuna Thunnus maccoyii was described using blood samples collected from fish immediately after they were caught. Cytology and cytochemistry revealed that the blood in peripheral circulation is comprised of erythrocytes, reticulocytes, ghost cells, lymphocytes, thrombocytes, eosinophilic granulocytes, neutrophilic granulocytes and monocytes. Reference ranges established were 41·09–55·50% for haematocrit, 0·62–3·00% for leucocrit, 13·25–17·92 g dl−1 for haemoglobin and 2·1–2·9 million erythrocytes μl−1 for erythrocyte count. Differential cell counts showed 94·58 ± 2·15% erythrocytes, 3·99 ± 1·44% leucocytes and 1·43 ± 1·03% thrombocytes (mean ± s.d.). Normal ranges for differential leucocyte counts were 0·00–5·45% for neutrophils, 0·69–12·06% for eosinophils, 0·00–5·03% for monocytes, 46·97–74·32% for lymphocytes and 14·47–43·92% for thrombocytes. Erythrocyte indices, leucocyte types and cytochemistry were comparable to other species of scombrids. Packed cell volume was sensitive to the physiological state of the fish and to sample handling technique.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.0022-1112.2005.00710.x

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Electronic Resource

Formation of a functional thymus initiated by a postnatal epithelial progenitor cell (2006)

Bleul, Conrad C. ; Corbeaux, Tatiana ; Reuter, Alexander ; [et al.]

[s.l.] : Nature Publishing Group

Nature 441 (2006), S. 992-996

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ISSN: 1476-4687

Source: Nature Archives 1869 - 2009

Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics

Notes: [Auszug] The thymus is essential for the generation of self-tolerant effector and regulatory T cells. Intrathymic T-cell development requires an intact stromal microenvironment, of which thymic epithelial cells (TECs) constitute a major part. For instance, cell-autonomous genetic defects of forkhead box ...

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1038/nature04850

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Controlled Release of Thrombin Using Aptamer-Based Nanodevices (2006)

Beyer, Stefan ; Dittmer, Wendy U. ; Reuter, Andreas ; [et al.]

s.l. ; Stafa-Zurich, Switzerland

Advances in science and technology Vol. 53 (Oct. 2006), p. 116-121

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ISSN: 1662-0356

Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008

Topics: Natural Sciences in General , Technology

Notes: Aptamers are DNA or RNA single strands that have been selected from random poolsbased on their ability to bind ligands. Like antibodies, aptamers are highly specific to their targets,and thus have many potential uses in biomedicine and biotechnology. We report here on theconstruction of a protein-binding molecular device based on a DNA aptamer, which can beinstructed to hold or release the human blood-clotting factor, α-thrombin, depending on an operatorDNA sequence addressing it. In the operation of this DNA nanodevice, the thrombin-binding DNAaptamer is switched between a binding and a non-binding form. This is achieved by sequentiallyhybridizing and removing a DNA single strand to the protein binding region of the aptamer. Thisprinciple of operation is limited as the switching sequence is determined by the protein-bindingsequence. To overcome this limitation we introduce a DNA signal translation device that allows theoperation of aptamers with arbitrary sequences. The function of the translator is based on branchmigration and the action of the endonuclease FokI. The modular design of the translator facilitatesthe adaptation of the device to various input or output sequences

Type of Medium: Electronic Resource

URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/42/transtech_doi~10.4028%252Fwww.scientific.net%252FAST.53.116.pdf

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Shallow-marine carbonates of the tropical-temperature transition zone: effects of hinterland climate and basin physiography (late Miocene, Crete, Greece) (2007)

Reuter, Markus ; Brachert, Thomas C. ; Kroeger, Karsten F.

In: Geological Society Special Publication 255: 157-178.

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Publication Date: 2007-10-08

Description: In modern oceans, the transition zone between the tropical and temperature carbonate province is gradual and covers a wide latitudinal belt. Little knowledge exists regarding the geological signatures of this zone. This paper describes a late Miocene (early Tortonian-early Messinian) transitional carbonate system that combines elements of the tropical and cool-water carbonate systems (Iraklion Basin, island of Crete, Greece). As documented in stratal geometries, the submarine topography of the basin was controlled by tilting blocks. Coral reefs formed by Porites and occurred in a narrow clastic coastal belt along a central Cretan landmass and steep escarpments formed by faulting. On the gentle dip-slope ramps of those blocks having the widest geographical distribution within the basin, extensive covers of level-bottom communities existed in a low-energy environment. Isolated colonial corals were present in the shallow segments of the ramps. Consistent patterns of landward and basinward shift of coastal onlap in all outcrop studies reveal an overriding control of third- and fourth-order sea-level changes on sediment dynamics and facies distributions over block movements. An increasingly dry climate and the complex submarine topography of the fault-block mosaic kept sediment and nutrient discharge from a central Cretan landmass at a minimum. The skeletal limestone facies therefore reflects oligotrophic conditions and sea surface temperatures near the lower threshold temperature of coral reefs in a climatic position transitional between the tropical coral reef belt and the temperate zone. It is suggested that the recognition of an overall late Miocene aridification trend helps to explain the Mediterranean-wide distribution of shallow-marine carbonates, both cool-water and warm-water, in settings adjacent to uplifting mountain ranges (intramontane basins).

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