Search Results - (Author, Cooperation:S. L. Lewis)

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  1. 1
    S. L. Lewis ; M. A. Maslin
    American Association for the Advancement of Science (AAAS)
    Published 2015
    Staff View
    Publication Date:
    2015-07-18
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    S. L. Lewis ; D. P. Edwards ; D. Galbraith
    American Association for the Advancement of Science (AAAS)
    Published 2015
    Staff View
    Publication Date:
    2015-08-22
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Agriculture ; Animals ; Biodiversity ; Carbon Cycle ; *Climate Change ; Conservation of Natural Resources ; Environmental Restoration and Remediation ; *Extinction, Biological ; Fires ; Humans ; *Rainforest ; Tropical Climate
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    S. L. Lewis
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-02-28
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    *Climate Change ; *Dissent and Disputes ; Floods/statistics & numerical data ; Great Britain ; Journalism/standards ; Mass Media/standards ; *Public Opinion ; Rain ; Reproducibility of Results ; Uncertainty
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  4. 4
    S. L. Lewis
    Nature Publishing Group (NPG)
    Published 2012
    Staff View
    Publication Date:
    2012-05-25
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Biodiversity ; *Earth (Planet) ; *Environmental Policy ; Global Warming/prevention & control ; *Human Activities ; Phosphorus/analysis/metabolism ; Recycling
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  5. 5
    R. J. Brienen ; O. L. Phillips ; T. R. Feldpausch ; E. Gloor ; T. R. Baker ; J. Lloyd ; G. Lopez-Gonzalez ; A. Monteagudo-Mendoza ; Y. Malhi ; S. L. Lewis ; R. Vasquez Martinez ; M. Alexiades ; E. Alvarez Davila ; P. Alvarez-Loayza ; A. Andrade ; L. E. Aragao ; A. Araujo-Murakami ; E. J. Arets ; L. Arroyo ; C. G. Aymard ; O. S. Banki ; C. Baraloto ; J. Barroso ; D. Bonal ; R. G. Boot ; J. L. Camargo ; C. V. Castilho ; V. Chama ; K. J. Chao ; J. Chave ; J. A. Comiskey ; F. Cornejo Valverde ; L. da Costa ; E. A. de Oliveira ; A. Di Fiore ; T. L. Erwin ; S. Fauset ; M. Forsthofer ; D. R. Galbraith ; E. S. Grahame ; N. Groot ; B. Herault ; N. Higuchi ; E. N. Honorio Coronado ; H. Keeling ; T. J. Killeen ; W. F. Laurance ; S. Laurance ; J. Licona ; W. E. Magnussen ; B. S. Marimon ; B. H. Marimon-Junior ; C. Mendoza ; D. A. Neill ; E. M. Nogueira ; P. Nunez ; N. C. Pallqui Camacho ; A. Parada ; G. Pardo-Molina ; J. Peacock ; M. Pena-Claros ; G. C. Pickavance ; N. C. Pitman ; L. Poorter ; A. Prieto ; C. A. Quesada ; F. Ramirez ; H. Ramirez-Angulo ; Z. Restrepo ; A. Roopsind ; A. Rudas ; R. P. Salomao ; M. Schwarz ; N. Silva ; J. E. Silva-Espejo ; M. Silveira ; J. Stropp ; J. Talbot ; H. ter Steege ; J. Teran-Aguilar ; J. Terborgh ; R. Thomas-Caesar ; M. Toledo ; M. Torello-Raventos ; R. K. Umetsu ; G. M. van der Heijden ; P. van der Hout ; I. C. Guimaraes Vieira ; S. A. Vieira ; E. Vilanova ; V. A. Vos ; R. J. Zagt
    Nature Publishing Group (NPG)
    Published 2015
    Staff View
    Publication Date:
    2015-03-20
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Atmosphere/chemistry ; Biomass ; Brazil ; Carbon/analysis/metabolism ; Carbon Dioxide/*analysis/metabolism ; *Carbon Sequestration ; Plant Stems/metabolism ; *Rainforest ; Trees/growth & development/metabolism ; Tropical Climate ; Wood/analysis
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  6. 6
    S. L. Lewis
    Nature Publishing Group (NPG)
    Published 2016
    Staff View
    Publication Date:
    2016-04-26
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    China ; Environmental Policy/*legislation & jurisprudence ; Global Warming/*legislation & jurisprudence/*prevention & control ; Human Activities/legislation & jurisprudence ; *International Cooperation ; Islands ; Paris ; *Politics ; *Temperature ; United States
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  7. 7
    S. L. Lewis ; P. M. Brando ; O. L. Phillips ; G. M. van der Heijden ; D. Nepstad
    American Association for the Advancement of Science (AAAS)
    Published 2011
    Staff View
    Publication Date:
    2011-02-05
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Biomass ; Brazil ; Carbon ; *Droughts ; *Ecosystem ; Seasons ; South America ; *Trees
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  8. 8
    S. L. Lewis ; M. A. Maslin
    Nature Publishing Group (NPG)
    Published 2015
    Staff View
    Publication Date:
    2015-03-13
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Agriculture/history ; Atmosphere/chemistry ; Carbon Dioxide/analysis ; *Chronology as Topic ; *Environment ; Geology/*methods ; History, 15th Century ; History, 16th Century ; History, 17th Century ; History, 18th Century ; History, 19th Century ; History, 20th Century ; History, 21st Century ; Human Activities/*history ; Industry/history ; Population Dynamics ; Time Factors
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  9. 9
    A. L. Jacob ; S. J. Wilson ; S. L. Lewis
    Nature Publishing Group (NPG)
    Published 2014
    Staff View
    Publication Date:
    2014-03-22
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Carbon/*metabolism ; *Carbon Sequestration ; *Forestry ; Trees/*metabolism ; *Uncertainty
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  10. 10
    Staff View
    Publication Date:
    2011-07-19
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Atmosphere ; Biomass ; Carbon/analysis ; Carbon Dioxide/analysis ; *Carbon Sequestration ; Climate Change ; Conservation of Natural Resources ; *Ecosystem ; *Trees ; Tropical Climate
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  11. 11
    Staff View
    ISSN:
    1432-203X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract A study on the effect of various bioregulators on the biosynthesis of ajmalicine (8) and catharanthine (9) in plant tissue cultures of Catharanthus roseus is described. It is shown that 1,1-dimethylpiperidine bromide (3) and 2-diethylaminoethyl-3,4-dimethylphenylether (7) are effective in increasing these alkaloid levels in the cell line PRL #200. Such studies may prove beneficial in larger scale experiments designed for the production of these alkaloids.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    1432-2277
    Keywords:
    Key words Left ventricular hypertrophy ; heart transplantation ; Heart transplanation ; left ventricular hypertrophy ; Graft failure ; Ultrasound
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract A review of factors contributing to early mortality after cardiac transplantation revealed that up to 25 % of deaths were due to primary graft dysfunction unrelated to rejection or infection. In light of this finding, evaluation of a donor heart with regard to its suitability for transplantation takes on added importance. In an effort to screen the suitability of donor hearts in the region covered by the Northwest Organ Procurement Agency (USA), all donors are evaluated by two-dimensional transthoracic echocardiography as part of the initial evaluation. A total of 110 donor echocardiograms were reviewed and an attempt was made to correlate the 30-day outcome with the parameters measured. An unexpected finding was that the presence of left ventricular hypertrophy in the donor heart was associated with an increase in the incidence of donor heart dysfunction compared with donors with normal echocardiographic profiles (33 % vs 3 %, P = 0.007).
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Staff View
    ISSN:
    0018-019X
    Keywords:
    Chemistry ; Organic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Catharanthus roseus cells suspended in production medium showed the presence of four Aspidosperma-type alkaloids, however, no vindoline. Cells grown in media with the pH adjusted to 7.0 produced 3.3 mg total alkaloids/g dry weight. At pH 5.0, 1.7 mg of alkaloid/g dry weight was produced. (S)-Adenosyl-methionine did not stimulate the production of vindoline. When added to cell suspensions for 21 days, vindoline and catharanthine were degraded to non-alkaloidal substances, not dimerized to bisindole alkaloids.
    Additional Material:
    3 Tab.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    0018-019X
    Keywords:
    Chemistry ; Organic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Cell-free systems from Catharanthus roseus plants are utilized for various studies relating to the biosynthesis of indole alkaloids. Tryptamine (5) and secologanin (6), two fundamental building units, are shown to be incorporated into the alkaloid vindoline (7). In another study, catharanthine (18) and vindoline (7) are utilized by this enzyme system and coupled to the important bisindole biointermediate 3′,4′-anhydrovinblastineThe previously [20] used name for 17, 3′, 4′-dehydrovinblastine, is incorrect. (17). The latter substance is, in turn, incorporated and converted to the natural alkaloids leurosine (8), Catharine (9) and vinblastine (10), thereby providing information about the biosynthesis of these complex molecules. High pressure liquid chromatography assay of the enzymic mixture sheds light on the enzymes involved in the coupling of 18 and 7.
    Additional Material:
    5 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    0018-019X
    Keywords:
    Chemistry ; Organic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    The 953 cell line, one of the cell lines from Catharanthus roseus, has been investigated in terms of its ability to produce indole alkaloids. Various parameters (mitotic index, pH, cell dry weight, growth period) were evaluated in the fermentation process and their relative importance for alkaloid production was determined. The alkaloids isolated and identified are ajmalicine, yohimbine, isositsirikine, vallesiachotamine, strictosidine lactam, lochnericine, hörhammericine, hörhammerinine, vindolinine, 19-epivindolinine, 19-acetoxy-11-methoxytabersonine, 19-hydroxy-11-methoxytabersonine and dimethyltryptamine.
    Additional Material:
    3 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    0018-019X
    Keywords:
    Chemistry ; Organic Chemistry
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Chemistry and Pharmacology
    Notes:
    Biotransformation studies of 3′,4′-anhydrovinblastine (1) in Calharanthus roseus cell suspension cultures are reported. A detailed study of one cell line, coded at „916“, has revealed that 1 is transformed to the natural bisindole alkaloids leurosine (2) and Catharine (3) in approximately 25-30 and 9-16% yield, respectively. In 24-48 h, about 40% of 1 is utilized by the cells. Conditions for biotransformation of 1 have not been optimized so the above yields quoted are not final.
    Additional Material:
    7 Tab.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses