Results 91 to 100 of about 107,424 (195)

Caracterização físico-química de misturas de componentes de substrato com resíduo de celulose para fins de produção de mudas. [PDF]

open access: yes, 2012
O trabalho teve como objetivo caracterizar fisicamente combinações de componentes de substrato com resíduo de celulose. Foi desenvolvida no Laboratório de Física do Solo da UNESP – Campus de Ilha Solteira – SP.
Alves, Marlene Cristina   +2 more
core  

Análise integrada de sistemas de produção de tomateiro com base em indicadores edafobiológicos. [PDF]

open access: yes, 2007
A análise integrada de indicadores edafobiológicos ligados ao manejo do solo constitui uma ferramenta importante para estimar níveis de sustentabilidade do agroecossistema, detectando-se pontos críticos para a devida correção de manejo.
BALBINOT L   +29 more
core   +3 more sources

Biocatalytic Epoxidation Pathway of Oils in Sponge‐Like Ionic Liquids Toward CO2‐Derived Cyclic Carbonate Synthesis

open access: yesChemSusChem, Volume 19, Issue 5, 13 March 2026.
A sustainable chemo‐enzymatic synthesis of poly(cyclic carbonate)s from CO2 and renewable oils is reported for the first time using sponge‐like ionic liquids as reaction media by two sequential steps: epoxidation and CO2 cycloaddition. A sustainable chemo‐enzymatic synthesis of poly(cyclic carbonate)s from CO2 and renewable oils is reported for the ...
Francisco J. Ruiz   +7 more
wiley   +1 more source

[1-(2,5-Dichloroanilino)-5-methyl-1H-1,2,3-triazol-4-yl]methanol

open access: yesIUCrData, 2016
In the title compound, C10H10Cl2N4O, the hydroxy group and benzene ring are disposed to opposite sides of the central 1,2,3-triazolyl ring. The dihedral angle between the five- and six-membered rings is 87.51 (12)°, and the C—O bond of the hydroxy group ...
Anna C. Cunha   +6 more
doaj   +1 more source

Estoque e caracterização por FTIR e DRUV-VIS da fração grosseira da matéria orgânica em agregados de um argissolo sob eucalipto e pastagem. [PDF]

open access: yes, 2019
bitstream/item/39856/1/boletim-123 ...
LIMA, C. L. R. de   +6 more
core   +1 more source

Effect of solarization, chemical and organic fertilization on the control of nematode on greenhouse lettuce [PDF]

open access: yes, 2006
Os efeitos da solarização do solo associados à adubação no controle de nematóides e na produtividade da alface cultivar "Verônica" foram avaliados em solo naturalmente infestado. Dois experimentos foram conduzidos, um com e outro sem solarização, em casa
Junqueira, Ana Maria Resende   +3 more
core   +1 more source

Kombinierte lösungs‐ und oberflächengestützte Synthese eines vollständig kondensierten, kreuzförmigen Phthalocyanin‐Pentamers

open access: yesAngewandte Chemie, Volume 138, Issue 11, 9 March 2026.
Ein Phthalocyanin‐(Pc)‐Pentamer wurde durch die Kombination lösung‐ und oberflächengestützter Synthese unter Ultrahochvakuumbedingungen erhalten. Die entstandene Pc‐basierte Nanostruktur weist ein exaktes stöchiometrisches Verhältnis von 4:1 zweier unterschiedlicher Metallionen auf, mit präziser Positionskontrolle.
Luis M. Mateo   +8 more
wiley   +1 more source

Organic compounds isolated from Juniperus brevifolia bark [PDF]

open access: yes, 2013
10º Encontro Nacional de Química Orgânica e 1º Simpósio Luso-Brasileiro de Química Orgânica, Lisboa, 4-6 Setembro de 2013In continuation of our study on the chemical characterization of endemic plants of the Azores archipelago, we have examined Juniperus
Martins, Marcele   +4 more
core  

Combined In‐Solution and On‐Surface Synthesis of a Fully Fused Cross‐Shaped Phthalocyanine Pentamer

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 11, 9 March 2026.
A phthalocyanine (Pc) pentamer was obtained through the combination of in‐solution and on‐surface synthesis under ultra‐high vacuum conditions. The resulting Pc‐based nanostructure presents an exact 4:1 ratio of two different metal ions with precise positional control.
Luis M. Mateo   +8 more
wiley   +1 more source

Xanthone and Flavone Derivatives as Dual Agents with Acetylcholinesterase Inhibition and Antioxidant Activity as Potential Anti-Alzheimer Agents

open access: yesJournal of Chemistry, 2017
Alzheimer’s disease (AD) is a multifactorial neurodegenerative disorder that is associated with the elderly. The current therapy that is used to treat AD is based mainly on the administration of acetylcholinesterase (AChE) inhibitors.
Inês Cruz   +6 more
doaj   +1 more source

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