A5066675718- Catalysis and Oxidation Reactions
- Fullerene Chemistry and Applications
- Crystallization and Solubility Studies
- Carbon Nanotubes in Composites
- Metal complexes synthesis and properties
- X-ray Diffraction in Crystallography
- Catalytic Processes in Materials Science
- Chemistry Education and Research
- Magnetism in coordination complexes
- Metal-Catalyzed Oxygenation Mechanisms
- Zeolite Catalysis and Synthesis
- Science and Science Education
- Crystallography and molecular interactions
- Conducting polymers and applications
- Vanadium and Halogenation Chemistry
- Diamond and Carbon-based Materials Research
- Layered Double Hydroxides Synthesis and Applications
- Polyoxometalates: Synthesis and Applications
- Pesticide and Herbicide Environmental Studies
- Graphene research and applications
- Phosphorus and nutrient management
- Adsorption and biosorption for pollutant removal
- Origins and Evolution of Life
- Enzyme Structure and Function
- Crystal structures of chemical compounds
Universidade Federal Rural do Rio de Janeiro
2011-2023
ORCID
2023
Institute of Animal Science and Pastures
2023
Serviço Nacional de Aprendizagem Comercial
2014
Universidade Federal do Rio de Janeiro
2003-2013
Instituto de Investigaciones en Ciencias de la Salud
2012
Universidade Estadual da Zona Oeste
2006
Fundação Instituto de Pesca do Estado do Rio de Janeiro
2004
Universidade Estadual de Campinas (UNICAMP)
2000-2003
University of Graz
1968-1982
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSmall angle x-ray scattering of a homogeneous γGl immunoglobulinIngrid Pilz, G. Puchwein, O. Kratky, M. Herbst, Haager, W. E. Gall, and EdelmanCite this: Biochemistry 1970, 9, 2, 211–219Publication Date (Print):January 20, 1970Publication History Published online1 May 2002Published inissue 20 January 1970https://pubs.acs.org/doi/10.1021/bi00804a004https://doi.org/10.1021/bi00804a004research-articleACS PublicationsRequest reuse permissionsArticle...
Abstract Background The pathogenic fungus Fonsecaea pedrosoi constitutively produces the pigment melanin, an important virulence factor in fungi. Melanin is incorporated cell wall structure and provides chemical physical protection for fungus. We evaluated production of nitric oxide (NO) macrophages, oxidative burst inducible synthase (i-NOS) activity interactions between activated murine macrophages F. . Experiments were carried out with or without tricyclazole (TC) treatment, a selective...
The size and shape of beef liver glutamate dehydrogenase were investigated by X‐ray small‐angle measurements in the range protein concentration between 1 33 mg/ml. It was shown that cross‐section particles varying sizes independent molecular weight particles. radius gyration ( R q ) found to be 30.3 Å mass per unit length M /1Å) 2,340. From comparison experimental scattering curves with theoretical for elliptical cylinders it follows molecule has a very isotropic cross‐section. data lie...
Fatty acid synthetase, a multienzyme complex from yeast, was analysed by small angle x‐ray scattering. The molecular weight determined this method (2.2 × 10 6 ) in close agreement with the value earlier ultracentrifugation. experimental data indicate that is contained ellipsoid volume axial ratios 1:1:1.2. relationship of radius gryation to and height second maximum scattering curve suggest proteins enclose hollow space. A model proposed where theoretical closely aggrees measured for fatty...
Glyphosate (N-(phosphonomethyl)glycine) (Gph) is a herbicide that broadly used in several countries. Its application to eliminate weeds may have the undesired effect of diminishing metallic cations found soil (e.g., Ni(2+) and Zn(2+)), due complexation reaction depends on soil's pH. To better understand molecular structures glyphosate are involved such reaction, we studied all possible conformations aqueous solution be deprotonation reactions pH range from 2 11 using polarizable continuum...
A MULTIDISCIPLINARY AREA.An overview of the properties carbon nanotubes is presented as a function structural characteristics and method synthesis these novel advanced materials.Emphasis given to catalytic decomposition hydrocarbons over metal-supported catalysts also role support in obtaining homogeneous high yelds discussed.Some potential real applications are perspective view.
Abstract A hybrid material of polyaniline doped with dodecylbenzenesulfonic acid and conductive carbon black (PaniDBSA/CB) was prepared by in situ polymerization. The presence low amount CB (up to 25 wt %) resulted a decrease resistivity as compared pure PaniDBSA. Composite % presented the lowest tubular morphology characterized microtubules high aspect ratio evidenced SEM examination. Higher give rise materials higher values granular morphology, similar black. Ultraviolet–visible electron...
Among the epistemological obstacles described by Gaston Bachelard, we contend that unitary and pragmatic knowledge is correlated to teleological categories of Ernst Mayr basis for prevailing debate on notion "function" in biology. Given proximity aspects highlighted these authors, propose associate role thinking biology as an obstacle scientific knowledge. Thus, persists acting biology, according Bachelardian terminology. Our investigation led us formulate "teleological obstacle," which...
Abstract This paper investigates the behavior of strips containing iron-gall inks prepared with tannins from different sources, subjected to natural and thermally-induced aging. Results indicate that initial concentrations ferrous sulphate ranging 0.2 10.0 g are amenable treatment calcium phytate, thata good correlation exists between recovery excess iron concentration. Infrared spectra showed an absorption band at 1,750 cm−1, typical esther, solely in samples a condensed tannin. The nature...