Observaciones de la Galaxia a bajas latitudes en la línea de 21-cm

Con el objeto de contribuir al estudio de la estructura galáctica, Vieira (1968) había observado la zona comprendida en 302° ≤ l ≤ 310° , 2° ≤ b ≤ 12°, con espaciados Δl y Δb de 0.5°. El rango de velocidades iba desde -100 hasta +100 km/s.Asociación Argentina de Astronomí

Observaciones del cúmulo galáctico NGC 2287 en 21-cm

Observations were made in the direction of the galactic cluster NGC 2287 and its neighbourhood with the radiotelescope at Parque Pereyra Iraola. The results of them were compared with optical data. As the paper will be published elsewhere, we give here only a synthesis.Asociación Argentina de Astronomí

Observaciones de la Galaxia a bajas latitudes en la línea de 21-cm

Con el objeto de contribuir al estudio de la estructura galáctica, Vieira (1968) había observado la zona comprendida en 302° ≤ l ≤ 310° , 2° ≤ b ≤ 12°, con espaciados Δl y Δb de 0.5°. El rango de velocidades iba desde -100 hasta +100 km/s.Asociación Argentina de Astronomí

Observaciones de la Galaxia a bajas latitudes en la línea de 21-cm

Con el objeto de contribuir al estudio de la estructura galáctica, Vieira (1968) había observado la zona comprendida en 302° ≤ l ≤ 310° , 2° ≤ b ≤ 12°, con espaciados Δl y Δb de 0.5°. El rango de velocidades iba desde -100 hasta +100 km/s.Asociación Argentina de Astronomí

Observaciones del cúmulo galáctico NGC 2287 en 21-cm

Observations were made in the direction of the galactic cluster NGC 2287 and its neighbourhood with the radiotelescope at Parque Pereyra Iraola. The results of them were compared with optical data. As the paper will be published elsewhere, we give here only a synthesis.Asociación Argentina de Astronomí

Atlas de hidrógeno galáctico en la región 320° ≤ l ≤ 345°, 18° ≤ b ≤ 26°

Se presenta un atlas constituido por datos observacionales obtenidos en la linea de 21 cm dados en forma de perfiles e isofotas.Asociación Argentina de Astronomí

Dried brewers grains in growing rabbits: nutritional value and effects on performance

[EN] Two assays were carried out to determine i) the nutritional value of dried brewers’ grains and ii) the effects of inclusion of this ingredient in growing rabbit diets on animal performance and economic performance of the breeding unit. In the digestibility assay, a total of 28 male rabbits were distributed in 2 groups differing in the diet offered to animals: a reference diet (35.51% neutral detergent fibre and 16.50% crude protein [CP]) and a test diet (60% of reference diet and 40% of dried brewers grains). The dried brewers’ grain contained 37.9% of CP and 3371 kcal digestible energy/kg dry matter. In the performance study, 80 weaned rabbits (40 males and 40 females) were allotted at 40 d of age to 5 groups differing in the inclusion levels of dried brewers’ grains (0, 7, 14, 21 and 28%) from 40 d to 90 d of age. Inclusion of dried brewers’ grains did not affect the live weight at 90 d, the feed intake between 40 d and 90 d or the dressing percentage of rabbits (on average 223 g, 96 g/d and 51.3%, respectively). There was no effect of diet on the meat quality parameters (69.5% water holding capacity, 25.6% cooking loss, 3.4 kg/cm2 Warner-Bratzler shear force and pH 5.70) and inclusion levels above 14% reduced the feed cost (–18%; P<0.001), while inclusion above 21% improved net income (+32%; P<0.001). In conclusion, these results suggest that the use of dried brewers’ grains in diets for growing rabbits could improve the economic performance of the production system without impairing the animals’ performance.Lima, P.; Watanabe, P.; Cândido, R.; Ferreira, A.; Vieira, A.; Rodrigues, B.; Nascimento, G.... (2017). Dried brewers grains in growing rabbits: nutritional value and effects on performance. World Rabbit Science. 25(3):251-260. doi:10.4995/wrs.2017.6813.SWORD251260253Albuquerque, D. M. N., Lopes, J. B., Klein Junior, M. H., Merval, R. R., Silva, F. E. S., & Teixeira, M. P. F. (2011). Resíduo desidratado de cervejaria para suínos em terminação. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 63(2), 465-472. doi:10.1590/s0102-09352011000200026AOAC International. 2005. Official methods of analysis of Association Official Analytical Chemists International. AOAC, Arlington VA. USA.Briganó, M. V., Pacheco, G. D., Bridi, A. M., Oba, A., Fonseca, N. A. N., & Silva, C. A. da. (2008). Desempenho e características de carcaça de suínos submetidos a diferentes programas de restrição alimentar na fase dos 30 aos 118 kg. Revista Brasileira de Zootecnia, 37(8), 1398-1404. doi:10.1590/s1516-35982008000800009De Blas, J. C., Rodriguez, C. A., Bacha, F., Fernandez, R., & Abad-Guamán, R. (2015). Nutritive value of co-products derived from olivecake in rabbit feeding. World Rabbit Science, 23(4), 255. doi:10.4995/wrs.2015.4036Etchu K.A., Humbu M.E., Ndamukong K.J.N., Agbor E.B. 2012. Effect of varying levels of brewers' dried grain on the growth performance of weaner rabbits (Oryctolagus Cuniculus). Greener J. Agric. Sci., 2: 237-245.Fazano A.R.T., Zinsly C.F., Mattos W.R.S., Packer I.H. 1986. Digestibilidade e valor biológico da proteína da levedura seca (Saccharomyces spp.) e do farelo de soja para coelhos. Boletim de Indústria Animal, 46: 185-191.Lounaouci-Ouyaed G., Lakabi-ioualitene D., Berchiche M., Lebas F. 2008. Field beans and brewers grain as protein source for growing rabbits in Algeria: first results on growth and carcass quality. Nutrition and Digestive Physiology. In: 9th World Rabbit Congress, June 10-13, Verona, Italy. 723-728.Matterson L.D., Potter L.M., Stutz M.W., Singsen E.P. 1965. The metabolizable energy of feed ingredients for chickens. Storrs: University of Connecticut; Agricultural Experiment Station Research Report, 11: 11.National Research Council. 2007. Nutrient requirements of small ruminants: sheep, goats, cervids, and New World camelids. Washington, D.C.: National Academic Press, 292.Partridge G., Wyatt C. 1995. More flexibility with new generation of enzymes. World Poultry,11: 17-21.SAS 2000. SAS/STAT User's Guide (Release 6.12). SAS Inst. Inc., Cary NC, EUA.Villamide, M. J. (1996). Methods of energy evaluation of feed ingredients for rabbits and their accuracy. Animal Feed Science and Technology, 57(3), 211-223. doi:10.1016/0377-8401(95)00855-

Decoupling of the S=1/2 antiferromagnetic zig-zag ladder with anisotropy

The spin-1/2 antiferromagnetic zig-zag ladder is studied by exact diagonalization of small systems in the regime of weak inter-chain coupling. A gapless phase with quasi long-range spiral correlations has been predicted to occur in this regime if easy-plane (XY) anisotropy is present. We find in general that the finite zig-zag ladder shows three phases: a gapless collinear phase, a dimer phase and a spiral phase. We study the level crossings of the spectrum,the dimer correlation function, the structure factor and the spin stiffness within these phases, as well as at the transition points. As the inter-chain coupling decreases we observe a transition in the anisotropic XY case from a phase with a gap to a gapless phase that is best described by two decoupled antiferromagnetic chains. The isotropic and the anisotropic XY cases are found to be qualitatively the same, however, in the regime of weak inter-chain coupling for the small systems studied here. We attribute this to a finite-size effect in the isotropic zig-zag case that results from exponentially diverging antiferromagnetic correlations in the weak-coupling limit.Comment: to appear in Physical Review

Alterations In The Achilles Tendon After Inflammation In Surrounding Tissue

Objective: To analyze the characteristics of the Achilles tendon of rats after induction of localized inflammation in the rat paw. Methods: In our study three groups were used: inflamed group with carrageenan in rat paw (G1); saline group (G2) and control group (G3). After 4 hours the animals were euthanized and the Achilles tendon removed. Results: No significant differences were observed in the analysis of non-collagenous proteins, glycosaminoglycans and hydroxyproline in the groups but a tendency of reduction was verified in G1. As regards the organization of collagen molecules, no differences were observed between groups. With respect to MMPs activity, a stronger presence of the active isoform of MMP-2 in G1 was observed, suggesting that the remodeling was occurring. Conclusion: Thus, we conclude that the inflammatory process in rat paw may affect the remodeling of tendons located near the inflamed site.205266269Maffulli, N., Kader, D., Tendinopathy of tendo Achillis (2002) J Bone Joint Surg Br, 84 (1), pp. 1-8Maffulli, N., Rupture of the Achilles tendon (1999) J Bone Joint Surg Am, 81 (7), pp. 1019-1036Järvinen, T.A., Kannus, P., Maffulli, N., Khan, K.M., Achilles tendon disorders: etiology and epidemiology (2005) Foot Ankle Clin, 10 (2), pp. 255-266Oliveira, F.S., Pinfildi, C.E., Parizoto, N.A., Liebano, R.E., Bossini, P.S., Garcia, E.B., Effect of low level laser therapy (830 nm) with different therapyregimes on the process of tissue repair in partial lesion calcaneous tendon (2009) Lasers Surg Med, 41 (4), pp. 271-276Karousou, E., Ronga, M., Vigetti, D., Passi, A., Maffulli, N., Collagens, proteoglycans, MMP-2, MMP-9 and TIMPs in human Achilles tendon rupture (2008) Clin Orthop Relat Res, 466 (7), pp. 1577-1582Riley, G., Matrix metalloproteinase activities and their relationship with collagen remodelling in tendon pathology (2002) Matrix Biol, 21 (2), pp. 185-195Dario, B.E., Barquilha, G., Marques, R.M., Lesões esportivas: um estudo com atletas de basquetebol Bauruense (2010) Rev Bras Cienc Esporte, 31 (3), pp. 205-215Vieira, C.P., Aro, A.A., Almeida, M.S., de Mello, G.C., Antunes, E., Pimentel, E.R., Effects of acute inflammation induced in the rat paw on the deep digital flexor tendon (2012) Connect Tissue Res, 53 (2), pp. 160-168Tillander, B., Franzén, L.E., Nilsson, E., Norlin, R., Carrageenan-induced subacromial bursitis caused changes in the rat's rotator cuff (2001) J Orthop Res, 19 (3), pp. 441-447Winter, C.A., Risley, E.A., Nuss, G.W., Carrageenin-induced edema in hind paw of the rat as an assay for antiiflammatory drugs (1962) Proc Soc Exp Biol Med, 111, pp. 544-547Bradford, M.M., A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding (1976) Anal Biochem, 72, pp. 248-254Farndale, R.W., Buttle, D.J., Barrett, A.J., Improved quantitation and discrimination of sulphated glycosaminoglycans by use of dimethylmethylene blue (1986) Biochim Biophys Acta, 883 (2), pp. 173-177Marqueti, R.C., Parizotto, N.A., Chriguer, R.S., Perez, S.E., Selistre-de-Araujo, H.S.A., ndrogenic-anabolic steroids associated with mechanical loading inhibit matrix metallopeptidase activity and affect the remodeling of the achilles tendon in rats (2006) Am J Sports Med, 34 (8), pp. 1274-1280Vidal, B.C., Mello, M.L., Supramolecular order following binding of the dichroic birefringent sulfonic dye Ponceau SS to collagen fibers (2005) Biopolymers, 78 (3), pp. 121-128Riley, G., Tendinopathy:from basic science to treatment (2008) Nat Clin Pract Rheumatol, 4 (2), pp. 82-89Szabo, K.A., Ablin, R.J., Singhingh, G., Matrix metalloproteinases and the immune response (2004) Clin Appl Immun Rev, 4, pp. 295-319Chakraborti, S., Mandal, M., Das, S., Mandal, A., Chakraborti, T., Regulation of matrix metalloproteinases: an overview (2003) Mol Cell Biochem, 253 (1-2), pp. 269-285Magra, M., Maffulli, N., Matrix metalloproteases: a role in overuse tendinopathies (2005) Br J Sports Med, 39 (11), pp. 789-791Clutterbuck, A.L., Harris, P., Allaway, D., Mobasheri, A., Matrix metalloproteinases in inflammatory pathologies of the horse (2010) Vet J, 183 (1), pp. 27-38Marsolais, D., Duchesne, E., Côté, C.H., Frenette, J., Inflammatory cells do not decrease the ultimate tensile strength of intact tendons in vivo and in vitro: protective role of mechanical loading (2007) J Appl Physiol, 102 (1), pp. 11-1