86,741 research outputs found
Active coatings against dates fungal decay
No full textBiodegradable coatings based on chitosan incorporating either bergamot or bitter orange EOs at different concentrations were evaluated against Aspergillus flavus, under in vitro conditions, in terms of mycelium growth and spore germination inhibition, and under in vivo conditions on inoculated dates, stored at 20°C. Sensory analysis was carried out to evaluate the effect of the different coating treatments on the flavour and odour characteristics of the treated fruits. Combined treatments based on CH-2% (v/v) bergamot EO or CH-2% (v/v) bitter orange EO proved to be the most effective coatings to reduce conidial germination resulting in a 87-90% inhibition compared with the control. In fruit decay assays, coatings based on CH incorporating citrus oils were able to reduce fungal decay in the range of 52-62% at day 12
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Crystal structure, vibrational and optical properties of a new Bi(III) halide complex: [C6H16N2]5Bi2Br10(BiBr6)2·2H2O
No full textA new Bi(III) halide complex, [C6H16N2]5Bi2Br10(BiBr6)2·2H2O has been synthesized at room temperature in the presence of 1,4-dimethylpiperazine by slow evaporation technique and characterized by physicochemical methods. It crystallizes in a triclinic centrosymmetric space group, P-1. The crystal lattice is composed of two types of anionic entities [Bi2Br10]4â and [BiBr6]3â surrounded by 1,4-dimethylpiperazine-1,4-diium cations and water molecules. The anionic part was found for the first time in halobismuthate(III) solid complexes. In the crystal, the components are linked by C-Hâ¦Br(Ow) and Ow-Hâ¦Br hydrogen bonds to built three-dimensional network. The vibrational absorption bands were identified by Infrared and Raman spectroscopy. The 13C and 15N CP-MAS NMR spectra are in agreement with the X-ray structure. Intermolecular hydrogen bonding was investigated by means of the Hirshfeld surfaces. The percentages of hydrogen bonding interactions are analyzed by Fingerprint plots of Hirshfeld surface. The optical properties of this compound were studied by UVâVis and luminescence spectroscopy. The DSC curve shows that this compound is stable below melting point
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Synthesis, crystal structure and vibrational spectroscopic analysis of tetrakis(5-amino-1-H-1,2,4-triazol-4-ium) decachlorodibismuthate(III):[C<inf>2</inf>H<inf>5</inf>N<inf>4</inf>]<inf>4</inf>Bi<inf>2</inf>Cl<inf>10</inf>
No full textPhysico-chemical properties of a new organic bismuthate(III), [C2H5N4]4Bi2Cl10 are discussed on the basis
of X-ray crystal structure investigation. This compound crystallizes in the monoclinic space group C2/c,
with a = 16.3622(3), b = 12.7941(2), c = 14.8178(2) Å, b = 98.5660(10), V = 3067.35(8) Å3 and Z = 4. The
crystal structure consists of discrete binuclear [Bi2Cl10]4 anions and 3-amino-1-H-1,2,4-triazolium
cations. The crystal packing is governed by strong N-H...N and weak N-H...Cl hydrogen bonds and
Pi...Pi stacking interactions to form three-dimensional network. The 13C CP-MAS NMR spectrum is in
agreement with the X-ray structure. The infrared study confirms the presence of the organic cation
[C2H5N4]+. The vibrational absorption bands were identified by infrared spectroscopy and DFT calculations
allowed their attribution
Synthesis, crystal structure and characterization of a new organic-inorganic hybrid material: [C6H16N2O]SbCl5
No full textThe present paper undertakes the study of [C6H16N2O]SbCl5 which is a new hybrid compound. It is synthesized and characterized by single-crystal X-ray diffraction, thermal analysis, IR and solid state NMR spectroscopies. The centrosymmetric compound crystallizes in the monoclinic space group P21/n, with the following unit cell parameters: a = 9.8519(2), b = 8.8345(2), c = 17.3087(4) Å, β = 102.3(1)° and Z = 4. The atomic arrangement shows an alternation of organic and inorganic entities. The cohesion between these entities is performed via N-H⋯Cl and O-H⋯Cl hydrogen bonding to form a three-dimensional network. The 13C CP-MAS NMR spectrum is in agreement with the X-ray structure. Infrared and Raman spectra at room temperature are recorded in the 4000-400 and 500-100 cm-1 frequency regions respectively. This study confirms the presence of the organic cation [C6H16N2]2+ and of the [SbCl5]2- anion. DFT calculations allow the attribution of the carbon peaks to the different atoms
Efficacy of the combined application of chitosan and Locust Bean Gum with different citrus essential oils to control postharvest spoilage caused by Aspergillus flavus in dates
No full textThis study reports the efficacy of the combined application of chitosan (CH) and Locust Bean Gum (LBG) in combination with different citrus essential oils (EOs) to inhibit Aspergillus flavus in vitro and on artificially infected dates for a storage period of 12 days . The effect of these treatments on the fruits’ sensory characteristics was evaluated to verify the complete absence of off-odours and off-flavours. Bergamot EO was the most effective in reducing mycelial growth, followed by bitter orange EO. Both bergamot and bitter orange oils significantly reduced conidial germination and a complete inhibition was obtained at concentrations higher than 2%. The mixtures based on CH-2% (v/v) bergamot EO or CH-2% (v/v) bitter orange EO proved to be the most effective coatings to reduce conidial germination , resulting in a 87-90% inhibition compared to the control. In fruit decay assays coatings based on CH incorporating citrus oils were able to reduce fungal decay in the 52- 62% range at day 12.
The study results and the complete absence of off-flavours and off-odours demonstrate the potential of CH coatings carrying citrus EOs at sub-inhibitory concentrations to control postharvest growth of A. flavus in dates
Crystal structure, Hirshfeld surface and spectroscopic studies of the noncentrosymmetric Bi(III) halide complex: [C8H12N]3BiCl6
No full textA new organic–inorganic hybrid material with the formula [C8H12N]3BiCl6 has been synthesized and characterized by spectroscopic techniques and single crystal X-ray structure determination. This compound crystallizes in the non-centrosymmetric space group Pna21 of the orthorhombic system with crystallographic parameters a = 25.5620(2), b = 16.7170(5), c = 7.8840(4) Å, V = 3369.0(2) Å3 and Z = 4. Its structure consists of discrete [BiCl6]3− anions, showing the distorted octahedral geometry, surrounded by three crystallographically independent 2-phenylethylammonium cations. The crystal packing is governed by the formation of a number of N–H⋯Cl hydrogen bonds arranged in a three-dimensional network. Crystal structure analysis supported with the Hirshfeld surface and fingerprint plots enabled the identification of the significant intermolecular interactions. The 13C and 15N CP-MAS NMR spectra are in agreement with the X-ray structure. The optical properties of [C8H12N]3BiCl6 were investigated by UV–Vis and luminescence spectroscopy. The differential scanning calorimetry (DSC) revealed that the title compound is stable up to 210 °C
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
Synthesis, crystal structure, and spectroscopic studies of organic-inorganic hybrid material: [C7H10NO]2BiBr5
No full textA novel organic-inorganic hybrid compound, 2-methoxyanilinium pentabromobismuthate(III), [C7H10NO](2)BiBr5, was synthesized and its structure determined by means of single crystal X-ray diffraction studies at room temperature. The molecule crystallizes in the orthorhombic C222(1) space group with cell parameters a = 11.8870(4), b = 23.4775(8), c = 8.1232(3) angstrom, V = 2267.0(1) angstrom(3) and four molecules in the unit cell. The structure of the title compound is built up from one-dimensional [BiBr5](2n-)n polyanionic zig-zag chains composed of deformed BiBr6 octahedra share Br(2) apex and 2-methoxyanilinium cations. The assignment of the vibrational bands was based on comparison with vibrational mode frequencies of homologous compounds. Theoretical calculations were performed using density functional theory (DFT) for studying the vibrational spectrum of the investigated molecule in its ground state. The C-13 CP-MAS NMR spectrum is in agreement with the X-ray structure
- …
