1,352 research outputs found

    Acceptability of yacon flakes (Smallanthus sonchifolia) for dietary use with inulin

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    "This study aimed to elaborate on yacon flakes and determine the proximal composition of fresh yacon and final flakes, made at different temperatures (120°C, 150°C and 180°C) for 20 mins. We measured the acceptability of the sensory attributes: taste, texture, odour and colour and the global acceptability at the laboratory level, using semi-trained panellists and an unstructured hedonic scale. The acceptability of the flakes was measured at different temperatures. Our results indicate that the flakes made at 180°C had the highest acceptance (87%), and the flakes made at 120°C had 80% of unacceptability. Our data were analysed according to the analysis of variance (ANOVA) and Tukey's test. We found significant differences between the averages of the taste scores (T0:7.1; T1:7.6; T2:6.7; T3:4.6), p<0.05; texture (T0:7.1; T1:7.2; T2:5.7; T3:4.5), p<0.05; and odour (T0:7.2; T1:7.6; T2:5.1; T3:3.3), p<0.05. The amount of fructooligosaccharides on a fresh basis was Ⱦ±SD (31.60±0.650) and on a dry basis (37.44±1DS). Microbiological analysis shows that the flakes are fit for human consumption. It is concluded that yacon flakes contain significant amounts of inulin, being a good substitute alternative for the preparation of snack-type dietetic products

    Intragranitic locle golcl cleposits in the Tomiño area (Ponteveclra)

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    [Resumen] En este trabajo se describen las principales características de las mineralizaciones auríferas filonianas que aparecen en varios cuerpos graníticos sintectónicos en el área de Tomillo (SW de la provincia de Pontevedra), haciendo también referencia al contexto geológico en el que dichas mineralizaciones se presentan. Se trata de venas y filones de cuarzo con sulfuros (pirita, arsenopirita y calcopirita principalmente), con greisenización asociada, originados como consecuencia de un proceso neumatolítico-hidrotermal controlado por el sistema de fracturas de los granitos encajantes. Pueden diferenciarse cinco paragénesis consecutivas: postmagmática, de endogreisen, hidrotermal temprana, hidrotermal tardía y supergénica. El oro se presenta en forma de inclusiones microscópicas dentro de los sulfuros (principalmente en la calcopirita), que van aumentando en tamaño y proporciór a lo largo de las etapas sucesivas del proceso de mineralización.[Abstract] The main characteristics of lode gold deposits ocurring in sorne syntectonic granitic bodies in the Tomiño Area (SW of Pontevedra province) are described in this work. The geological context of this mineralization type is also referred to. The mineralizations consist of quartz-veins bearing sulphides (mainly pyrite, arsenopyrite and chalcopyrite), with associated greisenization in the wallrock, produced by a pneumatolytic-hydrothermal process that is controlled by the fracture system in the host granites. Five consecutive paragenesis can be distinguished: postmagmatic, endogreisen, early hydrothermal, late hydrothermal and supergene. Gold oeeurs as mieroseopie inelusions inside sulphides (mainly in ehalco-pyrite), inereasing in size and proportion along the sueeesive stages in the mineralization proeess

    Gradual transition from insulator to semimetal of Ca1x_{1-x}Eux_{x}B6_{6} with increasing Eu concentration

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    The local environment of Eu2+^{2+} (4f74f^{7}, S=7/2S=7/2) in Ca1x_{1-x}Eux_{x}B6_{6} (0.003x1.000.003\leqslant x\leqslant 1.00) is investigated by means of electron spin resonance (ESR). For x0.003x\lesssim 0.003 the spectra show resolved \textit{fine} and \textit{hyperfine} structures due to the cubic crystal \textit{electric} field and nuclear \textit{hyperfine} field, respectively. The resonances have Lorentzian line shape, indicating an \textit{insulating} environment for the Eu2+^{2+} ions. For 0.003x0.070.003\lesssim x\lesssim 0.07, as xx increases, the ESR lines broaden due to local distortions caused by the Eu/Ca ions substitution. For 0.07x0.300.07\lesssim x\lesssim 0.30, the lines broaden further and the spectra gradually change from Lorentzian to Dysonian resonances, suggesting a coexistence of both \textit{insulating} and \textit{metallic} environments for the Eu2+^{2+} ions. In contrast to Ca1x_{1-x}Gdx_{x}B6_{6}, the \textit{fine} structure is still observable up to x0.15x\approx 0.15. For x0.30x\gtrsim 0.30 the \textit{fine} and \textit{hyperfine} structures are no longer observed, the line width increases, and the line shape is purely Dysonian anticipating the \textit{semimetallic} character of EuB6_{6}. This broadening is attributed to a spin-flip scattering relaxation process due to the exchange interaction between conduction and Eu2+^{2+} 4f4f electrons. High field ESR measurements for x0.15x\gtrsim 0.15 reveal smaller and anisotropic line widths, which are attributed to magnetic polarons and Fermi surface effects, respectively.Comment: Submitted to PR

    Microscopic evidence for field-induced magnetism in CeCoIn5_5

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    We present NMR data in the normal and superconducting states of CeCoIn5_5 for fields close to Hc2(0)=11.8H_{\rm c2}(0)=11.8 T in the abab plane. Recent experiments identified a first-order transition from the normal to superconducting state for H>10.5H> 10.5 T, and a new thermodynamic phase below 290 mK within the superconducting state. We find that the Knight shifts of the In(1), In(2) and the Co are discontinuous across the first-order transition and the magnetic linewidths increase dramatically. The broadening differs for the three sites, unlike the expectation for an Abrikosov vortex lattice, and suggests the presence of static spin moments in the vortex cores. In the low-temperature and high-field phase the broad NMR lineshapes suggest ordered local moments, rather than a long wavelength quasiparticle spin density modulation expected for an FFLO phase.Comment: 4 pages, 4 figures. to appear in Phys. Rev. Let

    Visual acuity and olfatory sensitivity in the swordfish (Xiphias gladius) for the detection of prey during field experiments using the surface longline gear with different bait types

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    During a total of 20 sets carried out on board a surface longliner, the different degrees of effectiveness obtained in the capture of swordfish were evaluated using 5 different bait types (natural, artificial and mixed). The results point to substantial and significant differences in the CPUEs obtained among the different bait types tested to catch swordfish. However, the results show few mean differences that were not statistically significant between the CPUEs obtained using natural bait (control) or mixed bait consisting of artificial bait on the outside -which in itself was of null effectiveness- into which was inserted a piece of natural bait, concealed from view. Both types of bait (control and mixed) were effective in the capture of swordfish despite the differences in constitution and properties. On the basis of these results, it is possible to make an indirect assessment of the importance of visual and odor stimuli in the swordfish to detect and carry out the final attack on its prey. Odor was found to be the key element in this process

    Safety and effectiveness of a new electrical detachable microcoil for embolization of hemorrhoidal disease, November 2020–December 2021: results of a prospective study

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    Purpose: The purpose of this study was to prospectively evaluate the efficacy and safety of a new, bare platinum, detachable microcoil as a metallic embolization agent in the treatment of hemorrhoidal disease. Material and Methods: This prospective single-center study evaluated a new, bare platinum, electrical, detachable microcoil (Prestige plus coil (Balt Montmorency France)) for use in vascular embolization in patients with hemorrhoidal disease. Between January 2020 and January 2021, 24 embolization procedures were performed in 21 patients (12 males, 9 females; mean age 44.3 ± 7.3). The inclusion criteria were: (a) participants with grade I, II and III hemorrhoidal disease on the Goligher classification; (b) patients older than 18 years of age with a score of greater than 4 on the French bleeding score (FBS) scale; (c) patients with scores greater than 2 on the scale of discomfort proposed by Tradi and Farfallah. (d) patients who underwent treatment that included the use of the new novel coil (Prestige plus coil (Balt)) as an embolic material. The exclusion criteria were participants who failed to provide informed consent and participants diagnosed with rectal bleeding due to other causes (cancer, fissures or others). Participants with severe renal insufficiency, non-correctable coagulation abnormalities and adverse reactions to the contrast medium not correctable with medication were also excluded. The symptoms, technical aspects, the transarterial approach, clinical and technical success complications and short-term outcomes were assessed. Results: Technical success was obtained in 100% of the cases. Seventeen (80.9%) patients experienced improvements in their hemorrhoidal disease. The VAS and QL scores improved by 4 and 1.5 points (81.2% and 87.5%), respectively, after embolization (pV: 0001). Three (14.2%) patients underwent a second embolization due to rebleeding. One patient (4.7%) underwent surgery. No major complications were observed. Three patients had minor complications. The assessment of subjective post-treatment symptoms and QL surveys showed significant differences from the baseline survey. Likewise, the measurement of the degree of satisfaction using a telephone survey at 12 months revealed a high degree of patient satisfaction over 10 points (mean 8.3 ± 1.1). Conclusions: The present study demonstrates that the use of the new, platinum, detachable, electrical microcoil is safe and well-tolerated in the treatment of hemorrhoidal disease. Key points: Catheter-directed hemorrhoidal dearterialization (CDHD) is the procedure of embolization with embolic agents for the treatment of internal hemorrhoids. CDHD is a simple and safe procedure that is accepted by patients and preserves the anal sphincter; it presents few complications when metal devices or microspheres are used as embolic agents. As the recommended embolization agent in treatments, the Prestige electrical, detachable coil is a safe, easy-to-use and effective arterial embolic device
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