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  • 1-10 of  52 نتائج ل ""CI?NCIAS EXATAS E DA TERRA""

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Academic Journal

Spontaneous 238U fission half-life measurements based on fission-track techniques.

Subjects: *URANIUM; *NUCLEAR fission; *HALF-life (Nuclear physics)

  • Source: Journal of Radioanalytical & Nuclear Chemistry. Apr2003, Vol. 256 Issue 1, p155-157. 3p.

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Academic Journal

Uranium and thorium thin film calibrations by particle track techniques.

Subjects: *URANIUM; *THORIUM; *THIN films

  • Source: Journal of Radioanalytical & Nuclear Chemistry. Nov2004, Vol. 262 Issue 2, p461-468. 8p.

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Academic Journal

An improved flow-based procedure for microdetermination of total tannins in beverages with minimized reagent consumption.

Subjects: *CHEMICAL reagents; *MICROCHEMISTRY; *ANALYTICAL chemistry

  • Source: Microchimica Acta. May2008, Vol. 161 Issue 1/2, p279-283. 5p. 1 Diagram, 4 Charts, 2 Graphs.

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Academic Journal

Vermicompost for Tinted Organic Cationic Dyes Retention.

Subjects: *VERMICOMPOSTING; *ADSORPTION; *BASIC dyes

  • Source: Water, Air & Soil Pollution. Jun2009, Vol. 200 Issue 1-4, p227-235. 9p. 1 Black and White Photograph, 1 Diagram, 2 Charts, 4 Graphs.

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Academic Journal

Botanical affinity of pollen harvested by Apis mellifera L. in a semi-arid area from Bahia, Brazil.

Subjects: *POLLEN; *HONEYBEES; *LEGUMESBAHIA (Brazil : State); BRAZIL

  • Source: Grana. 2009, Vol. 48 Issue 3, p224-234. 11p. 2 Color Photographs, 16 Black and White Photographs, 2 Charts, 1 Graph, 1 Map.

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Periodical

Neurotoxicity and aggressiveness triggered by low-level lead in children: a review.

Subjects: *NEUROTOXICOLOGY; *LEAD toxicology; *PLETHORA (Pathology)

  • Source: Pan American Journal of Public Health / Revista Panamericana de Salud Pública. Sep2009, Vol. 26 Issue 3, p266-275. 10p.

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Academic Journal

Photochemistry of anthocyanins and their biological role in plant tissues.

Subjects: *PHOTOCHEMISTRY; *ANTHOCYANINS; *PLANT cells & tissues

  • Source: Pure & Applied Chemistry. Sep2009, Vol. 81 Issue 9, p1687-1694. 8p. 4 Diagrams.

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Academic Journal

Determination of Manganese in Cassava Leaves by Slurry Sampling Flame Atomic Absorption Spectrometry.

Subjects: *ATOMIC absorption spectroscopy; *OPTOGALVANIC spectroscopy; *TRANSITION metals

  • Source: Analytical Letters. Sep2009, Vol. 42 Issue 14, p2206-2213. 8p. 2 Charts.

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Academic Journal

Development of a sequential injection–square wave voltammetry method for determination of paraquat in water samples employing the hanging mercury drop electrode.

Subjects: *SQUARE waves; *VOLTAMMETRY; *PARAQUAT

  • Source: Analytical & Bioanalytical Chemistry. Mar2010, Vol. 396 Issue 5, p1897-1903. 7p. 1 Diagram, 4 Charts, 4 Graphs.

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Academic Journal

Screening of Filamentous Fungi to Identify Biocatalysts for Lupeol Biotransformation.

Subjects: *FILAMENTOUS fungi; *BIOTRANSFORMATION (Metabolism); *ETHYL acetoacetate

  • Source: Molecules. Sep2010, Vol. 15 Issue 9, p6140-6151. 12p. 3 Diagrams, 3 Graphs.

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  • 1-10 of  52 نتائج ل ""CI?NCIAS EXATAS E DA TERRA""