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  • 1980-1984  (888)
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  • 1
    Monograph available for loan
    Monograph available for loan
    New York : Basil Blackwell
    Call number: PIK I 010-00-0442
    Type of Medium: Monograph available for loan
    Pages: 397 p.
    ISBN: 0631135197
    Branch Library: PIK Library
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  • 2
    Call number: 9/G 9203
    In: Developments in geotectonics
    Type of Medium: Monograph available for loan
    Pages: XII, 680 S.
    ISBN: 044442198X
    Series Statement: Developments in geotectonics 19
    Location: Reading room
    Branch Library: GFZ Library
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 83 (1981), S. 295-301 
    ISSN: 1573-5117
    Keywords: seasonal ; phytoplankton ; Mississippi River
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Species composition and seasonal succession of the phytoplankton were investigated on the upper Mississippi River at Prairie Island, Minnesota, U.S.A. Both the numbers and volume of individual species were enumerated based on cell counts with an inverted microscope. A succession similar to algal succession in the local lakes occurred. The diatoms were dominant during the spring and fall and blue-green algae were dominant during the summer. The algal concentrations have increased up to 40 fold the concentrations of the 1920's, since the installation of locks and dams. The maximum freshweight standing crop was 4 mg · l−1 in 1928 (Reinhard 1931), 13 mg · l−1 in 1975 a wet year, and 47 mg · l−1 in 1976, a relatively dry year with minimal current discharge. The diatoms varied from 36–99%, the blue-green algae from 0–44% and the cryptómonads from 0–50% of the total standing crop. The green algae were always present but never above 21% of the biomass. The dominant diatoms in recent years were centric -Stephanodiscus andCyclotella spp. (maximum 50,000 ml−1). The dominant blue-green algae wereAphanizomenon flos-aquae (L.) Ralfsex Born.et Flahault andOscillatoria agardhii Gomont (maximum 800 ml−1). These algal species are also present in local lakes. Shannon diversity values indicated greatest diversity of algae during the summer months.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-2048
    Keywords: Chlorophyll fluorescence ; Chloroplast development ; Thylakoid protein kinase ; Triticum (chloroplast biogenesis)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The activity of thylakoid protein kinase and the regulation of excitation energy distribution between photosystems I and II was examined during chloroplast biogenesis in light-grown Triticum aestivum (wheat) leaves. The specific activity of the thylakoid protein kinase decreased some six-fold during development from the young plastids at the base of the 7-d-old leaf to the mature chloroplasts at the leaf tip. Appreciable activity was also detected in plastids isolated from etiolated leaves. In mature chloroplasts the majority of phosphate was incorporated into the Mr=26,000 apo-proteins of the light-harvesting chlorophyll a/b-protein complex (LHCP). However, at early stages of chloroplast development and in the etioplast, the phosphate was predominantly incorporated into a polypeptide of Mr=9,000 dalton. Immature thylakoids, isolated from the base of the leaf, had relatively low concentrations of LHCP and could perform a State 1-State 2 transition, as demonstrated by ATP-induced quenching of photosystem II fluorescence. Analyses of photosystem I and photosystem II fluorescence-induction curves from intact leaf tissue demonstrated that this transition occurs in vivo at early stages of leaf development and, therefore, may play an important role in regulating energy transduction during chloroplast biogenesis.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-072X
    Keywords: Poteriochromonas ; Euglena ; Tetrahymena ; Crithidia ; Vitamin excretion ; Vitamin B12 ; Biotin ; Thiamin ; Folates ; Vitamin B6 ; Riboflavin ; Nicotinic acid ; Pantothenate ; Vitamin C ; Bioterin ; Phytoplankton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Vitamins B6 and B12, biotin, folates, riboflavin, nicotinate, pantothenate, biopterin, and vitamin C (l-ascorbate) were assayed in Poteriochromonas stipitata, Euglena gracilis, and Tetrahymena thermophila cells grown in defined media and in spent culture supernatants. P. stipitata and E. gracilis synthesized, stored and excreted folates (mainly as 5-methyltetrahydrofolate), B6, riboflavin, pantothenate, nicotinate, biopterin, and ascorbate. E. gracilis synthesized and stored biotin. T. thermophila did not synthesize the above vitamins except for B12, biopterin, and ascorbate; it excreted biopterin and stored B12 and ascorbate. Thiamin was left of consideration because all 3 organisms are thiamin auxotrophs. Possible ecological implications of these findings are considered.
    Type of Medium: Electronic Resource
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  • 6
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    Unknown
    In:  J. Acoust. Soc. Am., Washington D.C., Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 71, no. 23, pp. 785-789, pp. 2122
    Publication Date: 1982
    Keywords: Waves ; Inversion ; Scattering
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  • 7
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    In:  Bull. Seism. Soc. Am., San Francisco, Pergamon, vol. 74, no. 6, pp. 1469-1481, pp. 1246
    Publication Date: 1984
    Keywords: Seismic networks ; Seismic arrays ; Detectors ; sta ; Broad-band ; Tele-communication ; Seismology ; BSSA
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  • 8
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    Unknown
    PANGAEA
    In:  Supplement to: Baker, Earl W; Louda, William (1980): Products of chlorophyll diagenesis in Japan Trench sediments, Deep Sea Drilling Project Sites 438, 439, and 440. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1397-1408, https://doi.org/10.2973/dsdp.proc.5657.172.1980
    Publication Date: 2020-01-17
    Description: Tetrapyrrole pigments isolated from sediments retrieved during Leg 57 include pheophytin-a, a myriad of chlorins, free-base deoxophylloerythroetioporphyrin (DPEP), as well as copper and nickel porphyrins. Their richness, both qualitatively and quantitatively, in chlorin tetrapyrroles affords a relatively complete study on the early diagenesis of chlorophyll. Our studies, coupled with those in the preceding chapter by Louda et al., point out the influence of pre- and postdepositional environments upon the mode of chlorophyll diagenesis. Formation of tetrapyrroles, collectively called "petroporphyrins," is seen to occur in only a limited set of environmental conditions (see Baker and Palmer, 1978). The more generalized route of chlorophyll diagenesis, at least in the ocean, results in removal of tetrapyrrole pigment, from the fossil record. Late diagenetic products, metalloporphyrins, are found to represent an extremely minor component of the tetrapyrrole assemblage in sediments studied from the Japan Trench. The products of chlorophyll diagenesis isolated from Japan Trench sediments allow expansion of previous diagenetic schemes (Baker and Palmer, 1978; Triebs, 1936) and indicate directions for future studies.
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 9
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    PANGAEA
    In:  Supplement to: Baker, Earl W; Louda, William (1980): Geochemistry of tetrapyrrole pigments in sediments of the North Philippine Sea, Deep Sea Drilling Project Leg 58. In: deVries Klein, G; Kobayashi, K; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 58, 737-739, https://doi.org/10.2973/dsdp.proc.58.124.1980
    Publication Date: 2020-01-17
    Description: Nineteen core samples from the Shikoku Basin and the Daito Ridge and Basin province of the northwest Philippine Sea, obtained from DSDP Leg 58, were examined for products of chlorophyll diagenesis; we aimed at gaining a better understanding of the very early diagenetic history of sedimentary chlorophyll. We choose samples which, a priori, would allow isolation of tetrapyrrole pigments characteristic of (destructive) diagenesis modes. Studies of Japan Trench sediments (Louda et al., 1980; Baker and Louda, 1980) showed well the interplay of two main diagenesis schemes: anoxic preservation and oxic destruction. The results reported herein are a product of a preliminary investigation on sediments of scant organic matter content, which yielded limited tetrapyrrole pigment.
    Type: Dataset
    Format: text/tab-separated-values, 96 data points
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  • 10
    ISSN: 1573-904X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Rhesus monkeys were administered primaquine diphosphate (6.0 to 10.5 mg/kg, I.V.), and plasma samples were analyzed by high performance liquid chromatography for the presence of the unchanged drug and the major metabolite , 8-(3-carboxy-l-methylpropylamino)-6-methoxyquinoline (II). Primaquine had an unusually high affinity for tissue compartments which produced a rapid initial drop in plasma concentration. Within 15 minutes, the plasma concentration of II far exceeded that of primaquine. 35 to 83 % of the primaquine dose was converted to II; moreover, metabolite II possessed much lower affinity for the tissue compartments than primaquine itself.
    Type of Medium: Electronic Resource
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