Search Results - (Author, Cooperation:M. A. Zavala)

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  1. 1
    Staff View
    Publication Date:
    2015-12-25
    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:
    Forests ; Internationality ; Models, Biological ; *Phenotype ; Plant Leaves/physiology ; Trees/*anatomy & histology/growth & development/*physiology ; Wood/analysis
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2014-01-17
    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:
    Aging/metabolism ; Biomass ; *Body Size ; Carbon/*metabolism ; *Carbon Cycle ; Climate ; Geography ; Models, Biological ; Plant Leaves/growth & development/metabolism ; Sample Size ; Species Specificity ; Time Factors ; Trees/*anatomy & histology/classification/growth & development/*metabolism ; Tropical Climate
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract A fast kit method was developed for the production of153Sm-EDTMP in two steps avoiding the use of nitric acid, evaporation and sterilization of the final solution by autoclave. Methods of analysis for the determination of chemical and radiochemical purity in the radiopharmaceutical solution were established. Factors affecting radiochemical purity and stability of the complex as the molar ratio of EDTMP/Sm, concentration of phosphate buffer and neutralization of EDTMP prior kit preparation were also analyzed. The use of this radiopharmaceutical in rabbits and patients showed selective skeletal uptake.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  4. 4
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract An alkaline kit formulation (pH 9) to obtain [99mTc]MAG3 with radiochemical puritives over 98% has been developed, avoiding the addition of filtered air to the vial, the use of large amounts of99mTc activity (i.e., 3.7 GBq) or the reconstitution of large volumes. The use of this radiopharmaceutical in mice showed a minimal accumulation in the hepatobiliary system (0.37±0.3% I.D., 1 h postinjection). However, in rabbits we always obtained good image quality.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  5. 5
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract A new type of preparation employing153Sm metallic-hydroxide macroaggregates (153Sm-MHM) for radiation synovectomy was developed. The radiopharmaceutical was prepared by reacting the aqueous solution of153SmCl3 with sodium borohydride solution in 0.5N NaOH. Microscopic analysis showed that153Sm-MHM mean particle size was 4 μm (range 1–15 μm) avoiding the formation of fine particles (〈1 μm) which were153Sm-hydroxide macroaggregates preparations (153Sm-HM). Also, suspension properties as sedimentation rate, were better for153Sm-MHM than for153Sm-hydroxyapatite and153Sm-HM. Biological studies in normal rabbits demonstrated high retention into de Knee joint space even at 48 h after administration of153Sm-MHM (〉99%).
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses