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Dadalt, J.C.,Gallardo, C.,Polycarpo, G.V.,Budino, F.E.L.,Rogiewicz, A.,Berto, D.A.,Trindade Neto, M.A. Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.10
Most of amino acid (AA) digestibility values for feed ingredients are obtained using pigs cannulated in the distal ileum. The ileal-cannulated pig model uses pigs older than six weeks due to difficulties related to implanting the T-cannula in distal ileum of younger pigs and complications during the post-surgical recovery. However, to properly formulate the diet of weaned pigs, the nutritive value of feed ingredients should be determined with younger pigs. Thus, 25 weaned pigs were used to determine the apparent total tract digestibility (ATTD) of nutrients, energy, and apparent ileal digestibility (AID) and standardized ileal digestibility (SID) ileal AA digestibility of broken rice (BR), with or without multicarbohydrase (MC) and phytase (Phy) supplementation. Piglets were weaned at 23 d of age and individually housed in digestibility cages until 45 d of age. The trial consisted of 7 d of adaptation to the experimental diets and 3 d of excreta (feces and urine) collection. Ileal digesta was collected at slaughter (about 6 weeks of age). A completely randomized experimental design was used to determine the effects of MC and Phy. Reference diets (RD, 5% casein) was replaced by 30% of BR with or without MC, Phy, or MC+Phy. The RD was used to quantify endogenous AA losses. BR with Phy supplied had increased the ATTD of dry matter (p<0.05) and SID of histidine (p = 0.05), arginine, leucine, lysine, valine, alanine, and proline (p<0.05). BR with MC had been increased digestible energy and protein and SID for histidine (p<0.05). There was no interaction between Phy and MC on the BR nutrient digestibilities. Standardized amino acid digestibilities of BR, without enzymes, were lower than those values reported in the literature. The MC and Phy improved the digestibility of some nutrients and energy of BR in post-weaned piglet diets.
Investigation on surface properties of TiO2 films modified by DC glow discharge plasma
K. Navaneetha Pandiyaraj,V. Selvarajan,Matteo Pavese,Polycarpos Falaras,Dimitrios Tsoukleris 한국물리학회 2009 Current Applied Physics Vol.9 No.5
In the present work, TiO2 films deposited on polyethylene terephthalate substrates by dip coating technique were subsequently treated by DC glow discharge plasma as a function of discharge potential. Hydrophilicity of these TiO2 film surfaces was analyzed by contact angle measurements. Atomic force microscopy (AFM) revealed changes in surface morphology of the plasma treated TiO2 films. Modifications in structural and chemical composition of the TiO2 films were detected by X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The blood compatibility of TiO2 films was studied by in vitro investigation which includes thrombus formation and whole blood clotting time analysis (WBCT). It was found that the plasma treatment results in blood compatibility enhancement attributed to the structural, chemical and morphological properties of the modified film surfaces.
Konti, Georgia,Chatzivasiloglou, Evaggelia,Likodimos, Vlassis,Kantonis, Georgios,Kontos, Athanassios G.,Philippopoulos, Athanassios I.,Falaras, Polycarpos Korean Society of Photoscience 2009 Photochemical & photobiological sciences Vol.8 No.5
cis-$[Ru(bpy)_2(L^n)]Cl_2$ (n = 1, $L^1$ = 4-carboxy-2-(2'-pyridyl)quinoline (2); n = 2, $L^2$ = 2,2'-pyridine-4,4'-dicarboxylic acid (4)); and cis-$[Ru(bpy)_2(L')_2)]Cl_2$ (L' = 4-pyridinecarboxylic acid (6)) complexes, with surface anchoring groups, are prepared from the reaction of cis-[$Ru(bpy)_2Cl_2$] (1) with the appropriate ligand ($L^1$, $L^2$, L'). Ion exchange in aqueous solution with $NH_4PF_6$ gives the corresponding bis(hexafluorophosphate) derivatives cis-$[Ru(bpy)_2(L^1)](PF_6)_2$ (3), cis-$[Ru(bpy)_2(L^2)](PF_6)_2$ (5) and cis-$[Ru(bpy)_2(L')_2](PF_6)_2$ (7), respectively. The photo-electrochemical properties of the dyes (2-7) are investigated and the efficiency of the corresponding dye sensitized solar cells is compared to a N719 sensitized device, under similar fabrication and testing conditions.
Link, J.M.,Yager, P.M.,Anjos, J.C.,Bediaga, I.,Castromonte, C.,Machado, A.A.,Magnin, J.,Massafferri, A.,de Miranda, J.M.,Pepe, I.M.,Polycarpo, E.,dos Reis, A.C.,Carrillo, S.,Cuautle, E.,Sá,nchez Elsevier 2009 Physics letters: B Vol.681 No.1
<P><B>Abstract</B></P><P>Using data from FOCUS (E831) experiment at Fermilab, we present a model independent partial-wave analysis of the <SUP>K−</SUP><SUP>π+</SUP> S-wave amplitude from the decay <SUP>D+</SUP>→<SUP>K−</SUP><SUP>π+</SUP><SUP>π+</SUP>. The S-wave is a generic complex function to be determined directly from the data fit. The P- and D-waves are parameterized by a sum of Breit–Wigner amplitudes. The measurement of the S-wave amplitude covers the whole elastic range of the <SUP>K−</SUP><SUP>π+</SUP> system.</P>