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  • 1
    Keywords: Sedimentology. ; Geomorphology. ; Geochemistry. ; Paleontology . ; Paleoecology. ; Environment. ; Sedimentology. ; Geomorphology. ; Geochemistry. ; Paleontology. ; Paleoecology. ; Environmental Sciences.
    Description / Table of Contents: Part1. Introduction -- Chapter1. Introduction to limnogeology: progress, challenges, and opportunities—A tribute to Elizabeth Gierlowski Kordesch -- Part2. African Lake -- Chapter2. Modern and ancient animal traces in the extreme environments of Lake Magadi and Nasikie Engida, Kenya rift valley -- Part3. European lakes -- Chapter3. Lake level fluctuations and allochthonous lignite deposition in the Eocene pull-apart basin “Prinz von Hessen” (Hesse, Germany) - A palynological study -- Chapter4. How changes of past vegetation and human impact are documented in lake sediments: Paleoenvironmental research in Southwestern Germany, a review -- Chapter5. Large-scale slumps and associated resedimented deposits in Miocene lake basins from SE Spain -- Chapter6. Lacustrine and fluvial microbialites in the Neogene of the Ebro Basin, Spain: a summary of up to date knowledge -- Part4. North America -- Chapter7. Ecological response of ostracodes (Arthropoda, Crustacea) to lake level fluctuations in the Eocene Green River Formation, Fossil Basin, Wyoming, USA -- Chapter8. History of Great Salt Lake, Utah, USA, since the termination of Lake Bonneville -- Chapter9. What’s new about the old Bonneville Basin? Fresh insights about the modern Limnogeology of Great Salt Lake -- Chapter10. Middle Holocene hydrologic changes catalyzed by river avulsion in Big Soda Lake, Nevada, USA -- Chapter11. Diatom record of Holocene moisture variability in the San Bernardino Mountains, California, USA -- Chapter12. A 12,000 year diatom-based palaeoenvironmental record from Lago de Zirahuén, Mexico -- Chapter13. Sedimentary record of the Zacapu Basin, Michoacán, México and implications for P’urhépecha Culture during the Pre-Classic and Post-Classic Periods -- Chapter14. Stratigraphy and Sedimentology of the Upper Pleistocene to Holocene Lake Chalco drill cores (Mexico Basin) -- Chapter15. Submarine groundwater discharge as a catalyst for eodiagenetic carbonate cements within marine sedimentary basins -- Part5. South America -- Chapter16. Reconstructing paleoenvironmental conditions through integration of paleogeography, stratigraphy, sedimentology, mineralogy, and stable isotope data of lacustrine carbonates—an example from early Middle Triassic strata of southwest Gondwana, Cuyana Rift, Argentina -- Part6. Asia -- Chapter17. Modern sedimentary systems of Qinghai Lake -- Chapter18. Freshwater microbialites in Early Jurassic fluvial strata of the Pranhita-Godavari Gondwana Basin, India.
    Abstract: This book honors the career of Professor Elizabeth Gierlowski-Kordesch who was a pioneer and leader in the field of limnogeology since the 1980s. Her work was instrumental in guiding students and professionals in the field until her untimely death in 2016. This collection of chapters was written by her colleagues and students and recognize the important role that Professor Gierlowski-Kordesch had in advancing the field of limnogeology. The chapters show the breadth of her reach as these have been contributed from virtually every continent. This book will be a primary reference for scientists, professionals and graduate students who are interested in the latest advances in limnogeologic processes and basin descriptions in North and South America, Europe, Africa, and China. *Free supplementary material available online for chapters 3,11,12 and 13. Access by searching for the book on link.springer.com.
    Type of Medium: Online Resource
    Pages: XV, 592 p. 230 illus., 196 illus. in color. , online resource.
    Edition: 1st ed. 2021.
    ISBN: 9783030665760
    Series Statement: Syntheses in Limnogeology,
    DDC: 551.3
    Language: English
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  • 2
    ISSN: 1435-0157
    Keywords: Key words New Zealand ; hydrochemistry ; groundwater quality ; metamorphic rocks ; unconsolidated sediments
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Résumé Dans les aquifères alluviaux des bassins de Wakatipu et de Wanaka (Otago central, Nouvelle-Zélande), la composition chimique des eaux souterraines peut être résumée ainsi, en équivalents: Ca2+≫Mg2+≅Na+ 〉K+ pour les cations, et HCO3 –≫SO4 2-〉NO3 – et Cl– pour les anions. En équivalents, le rapport entre Ca2+ et HCO3 – est de l'ordre de 1; ces ions représentent plus de 80% des ions présents dans la solution. Cependant, une partie de ces eaux souterraines possède des teneurs plus élevées en Na+ et SO4 2-, ce qui traduit une origine différente. Les matériaux constituant les aquifères alluviaux de ces deux bassins proviennent de l'érosion et de l'altération des schistes métamorphiques d'Otago (schistes gris et verts). La calcite est un minéral accessoire présent pour moins de 5% aussi bien dans les schistes gris que dans les verts. La cartographie géologique des deux bassins montre que la dissolution de la calcite des schistes est le seul mécanisme possible pour donner à l'eau souterraine une composition chimique aussi constante et caractérisée par un rapport 1 entre Ca2+ et HCO3 –. L'eau souterraine possédant les plus fortes teneurs en Na+ et en SO4 2- est présente près des zones où affleurent les schistes; cette eau souterraine est une eau d'origine plus profonde et probablement plus ancienne, provenant du substratum. Les concentrations anormalement fortes en K+ dans le bassin de Wakatipu et les concentrations élevées en NO3 – dans celui de Wanaka ne peuvent pas être attribuées à une interaction avec les roches du substratum; de telles teneurs correspondent probablement à l'influence anthropique sur la composition de l'eau souterraine.
    Abstract: Resumen Las aguas subterráneas en los acuíferos aluviales de las cuencas de Wakatipu y Wanaka, en Central Otago, Nueva Zelanda, tienen una composición química de manera que, expresándolos en términos de en equivalentes, los iones se pueden ordenar como Ca2+≫Mg2+≅Na+〉K+ para los cationes, y HCO3 –≫SO4 2-〉NO3 –≅Cl–para los aniones. Ca2+ y HCO3 – presentan una equivalencia 1 : 1, y entre los dos suponen más del 80% de los iones en disolución. Sin embargo, algunas aguas subterráneas presentan cantidades mayores de Na+ y SO4 2-, lo que refleja una procedencia diferente. El material rocoso de los acuíferos aluviales en ambas cuencas procede de la erosión y la alteración del Esquisto de Otago (esquistos grises y verdes). La calcita es un mineral presente en ambos esquistos, aunque con proporciones menores del 5%. Los mapas geológicos de ambas cuencas indican que la disolución de calcita procedente de los esquistos es el único mecanismo probable para producir unas aguas subterráneas con una composición tan constante de carbonato cálcico. Aguas subterráneas con mayores contenidos de Na+ y SO4 2- tienen lugar en zonas donde los esquistos afloran en superficie, por lo que estas aguas son más profundas y más viejas y provienen de circulación profunda, por la base del acuífero. Valores anormalmente altos de K+ en la cuenca de Wakatipu y de NO3 – en la de Wanaka no pueden justificarse por la interacción con los materiales de la base del acuífero, por lo que estas concentraciones están probablemente influenciadas por fuentes antrópicas.
    Notes: Abstract  Groundwater in alluvial aquifers of the Wakatipu and Wanaka basins, Central Otago, New Zealand, has a composition expressed in equivalent units of Ca2+≫Mg2+≅Na+〉K+ for cations, and HCO3 –≫SO4 2-〉NO3 –≅Cl– for anions. Ca2+ and HCO3 – occur on a 1 : 1 equivalent basis and account for 〉80% of the ions in solution. However, some groundwater has increased proportions of Na+ and SO4 2-, reflecting a different source for this water. The rock material of the alluvial aquifers of both basins is derived from the erosion and weathering of metamorphic Otago Schist (grey and green schists). Calcite is an accessory mineral in both the grey and green schists at 〈5% of the rock. Geological mapping of both basins indicates that dissolution of calcite from the schist is the only likely mechanism for producing groundwater with such a constant composition dominated by Ca2+ and HCO3 – on a 1 : 1 equivalent basis. Groundwater with higher proportions of Na+ and SO4 2- occurs near areas where the schist crops out at the surface, and this groundwater represents deeper and possibly older water derived from basement fluids. Anomalously high K+ in the Wakatipu basin and high NO3 – concentrations in the Wanaka basin cannot be accounted for by interaction with basement lithologies, and these concentrations probably represent the influence of anthropogenic sources on groundwater composition.
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  • 3
    ISSN: 1573-5001
    Keywords: (H)C(CO)NH-TOCSY ; Multidimensional NMR ; Deuteration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Summary A biosynthetic strategy has recently been developed for the production of 15N, 13C, 2H-labeled proteins using 1H3C-pyruvate as the sole carbon source and D2O as the solvent. The methyl groups of Ala, Val, Leu and Ile (γ2 only) remain highly protonated, while the remaining positions in the molecule are largely deuterated. An (H)C(CO)NH-TOCSY experiment is presented for the sequential assignment of the protonated methyl groups. A high-sensitivity spectrum is recorded on a 15N, 13C, 2H, 1H3C-labeled SH2 domain at 3°C (correlation time 18.8 ns), demonstrating the utility of the method for proteins in the 30–40 kDa molecular weight range.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Molecular and cellular biochemistry 82 (1988), S. 5-11 
    ISSN: 1573-4919
    Keywords: catecholamines ; cultured heart cells ; Purkinje fibers ; pertussis toxin ; lymphocytes ; beta receptors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Summary Guanine nucleotide binding proteins were examined for their influence in developmental and adaptive models of adrenergic actions in the heart. In primary cultures of rat cardiac myocytes, the positive chronotropic response to the alpha-agonist, phenylephrine, changes to negative when these cells are grown with and innervated by sympathetic nerves from the paravertebral chain. Innervated cells have significantly more G protein, as determined by the ADP-ribosylation reaction catalyzed by pertussis toxin, which is linked functionally to the negative chronotropic response. Adult canine Purkinje fibers that respond to phenylephrine with a decrease in automaticity are also linked biochemically and functionally to a G protein that serves as a pertussis toxin substrate. Fibers that increase in automaticity after exposure to phenylephrine, either under control conditions (a minority of fibers) or after prior exposure to pertussis toxin (a majority of fibers), have markedly reduced levels of G. A G protein was also shown to be important in the blunted adrenergic responsiveness that characterizes congestive heart failure in human subjects. In this model, the receptor complex is beta-adrenergic and the involved G protein is a cholera toxin substrate. Gs is reduced in the lymphocytes of patients with congestive heart failure and increases toward normal after successful therapy. These observations highlight the important roles that G proteins have in adrenergic actions of the heart both with respect developmental and adaptive changes.
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