Short communication: Effect of substituting hydroponic green barley forage for a commercial feed on performance of growing rabbits

[EN] The effect of replacing a commercial feed with hydroponic green barley forage (HGBF) was studied on productive performance and carcass yield of growing New Zealand rabbits. Four mixed diets based on a pelleted commercial feed (15.7% crude protein and 12.3% crude fi ber) were made by substituting wet HGBF (containing 16.1% dry matter, 2.18% crude protein and 2.36% crude fi ber) for the commercial feed (0, 10, 20 and 30%). Sixty-four rabbits, 35 d of age and with an average body weight of 917±9.7 (standard error) g were assigned to the 4 treatments and caged in groups of 4 rabbits (2 females and 2 males/cage). HGBF was grown for 15 d, and administered immediately after harvesting, including the radicular pad (roots and seed) and leaves. Feed intake and growth rate from 35 to 70 d of age were recorded. The rabbits were then slaughtered and the dressing-out percentage computed. Both dry matter feed intake and growth rate decreased linearly by 0.75±0.091 g/d (P<0.001) and 0.20±0.040 g/d (P<0.001) per unit of HGBF increase. Rabbits consumed daily all the HGBF offered 0, 2.3, 4.6 and 7.0 g DM for 0, 10, 20 and 30% substitution level, respectively. Feed conversion (average 3.26±0.026) and carcass yield percentage (average 58.1±0.32 %) were not affected by treatments. It was therefore concluded that replacing pelleted commercial feed by wet HGBF impaired growth performances.Morales, M.; Fuente, B.; Juárez, M.; Ávila, E. (2009). Short communication: Effect of substituting hydroponic green barley forage for a commercial feed on performance of growing rabbits. World Rabbit Science. 17(1):35-38. doi:10.4995/wrs.2009.668353817

Levantamento Epidemiológico dos Usuários de Antidepressivos Tricíclicos em Quatro Drogarias na Cidade de Rubiataba – Go no Período de 2009 A 2011

A depressão é um processo patológico que acomete a população em geral, ela consiste em vários sintomas como: melancolia, sono, angústia, desejo suicídio, medo, desesperança, baixa estima entre outros sintomas. Devido a importância desta patologia este estudo tem como objetivo avaliar a dispensação dos antidepressivos tricíclicos em quatro drogarias na cidade de RUBIATABA-GO, através do estudo quantitativo de aspecto descritivo. No presente estudo observou-se que Amitriptilina 25mg corresponde a 55% das vendas e o Cloridrato de Nortriptilina a 1%, notou-se também que dos usuários 67% são do gênero feminino e 33% para o gênero masculino, percebe-se que houve um aumento significativo na dispensação destes medicamentos no período de 2009 a 2011.O estudo demostra que a depressão tem aumentado anualmente por diversos fatores..   Palavras chaves: Depressão, Antidepressivos tricíclicos, sintomas e dispensação.Abstract Depression is a disease process that affects the general population, it consists of various symptoms such as: melancholy, sleep, anxiety, suicidal desire, fear, hopelessness, low self-esteem among other symptoms. Given the importance of this disease this study is to evaluate the dispensation of tricyclic antidepressants in four drugstores in the city of  Rubiataba-GO, through quantitative study of descriptive aspect. In the present study it was observed that Amitriptyline 25mg corresponds to 55% of sales and Nortriptyline Hydrochloride 1% was noted also that 67% of users are female and 33% for males, it is perceived that there was a significant increase in the dispensing of these drugs in the period from 2009 to 2011. The study shows that depression has increased annually by several factors. Keywords: Depression, Tricyclic antidepressants, symptoms and dispensatio

Microstructural and magnetic characterization of Fe- and Ir-based multilayers

Nominal [Fe(t)/Ir(t′)]n (M/M type), [FeOx(t)/IrOx(t′)]n (O/O), and [Fe(t)/IrOx(t′)]n (M/O) multilayers have been prepared by magnetron sputtering at room temperature. Composition, structure, and magnetic behavior have been analyzed. In the M/M samples, the Fe and Ir phases are identified as bcc and fcc, respectively. The magnetism evolves from bulklike iron to granular behavior as the thickness of the Fe layers decreases. An induced magnetic moment, ferromagnetically coupled to Fe, is observed on Ir by x-ray magnetic circular dichroism (XMCD). Besides, the presence of negative remanent magnetization is observed in the M/M samples. As for the M/O samples, the stronger affinity of iron for oxygen displaces the oxygen atoms giving rise to actual heterostructures that strongly differ from the nominal ones. For similar thickness of the two layers the Fe layer become oxidized while a mixture of metal and oxide phases is found in the Ir layer. The increase of the Fe thickness leads to a metallic Ir layer and a highly coercive (∼4.4 kOe) core-shell metal-oxide structure in the Fe layers.Spanish Ministry of Economy and Competitiveness (MINECO), MAT2014-54425-R, MAT2017-83468-RAragón DGA NETOSHIM

Improvement of tensile properties by controlling the microstructure and crystallographic data in commercial pearlitic carbon-silicon steel via quenching and partitioning (Q&amp;P) process

In the current research, a complex microstructure and crystallographic data were developed through quenching and partitioning (Q&P) process to improve tensile properties of commercial pearlitic carbon-silicon steel. Two-stage Q&P process, including full austenitization, quenching at 220 °C, followed by two different partitioning temperatures, was applied to the as-received specimen to generate a complex microstructure composed of tempered martensite, bainite, ultrafine carbides/martensite-austenite/retained austenite particles. Microstructure and crystallographic data were investigated by scanning electron microscopy, electron backscattered diffraction (EBSD), and X-ray diffraction techniques. Then, hardness and tensile properties were evaluated to confirm the improvement of mechanical properties. Dilatation-temperature curves exhibited the kinetics of martensitic and bainitic transformation during quenching and isothermal partitioning stages. The presence of nano-carbide particles inside athermal martensite was confirmed by electron microscopy due to the pre-formed martensite carbon depletion during the partitioning stage coupled with bainitic transformation. The formation of preferential atomic-compact direction in BCC (martensite/bainite) plates characterized by EBSD, could enhance ductility by providing adequate slip systems. Point-to-point misorientation analyses demonstrated a slight dominance of low angle boundaries proportion in bainitic dominance structure in Q&P-220-375 specimen, which could be used in phase characterization. Results revealed that the development of nanoscale carbide dispersed in refined bainite/martensite matrix boosted the yield and ultimate tensile strength by over 100% and 110% compared to the initial pearlitic microstructure. However, ductility reduced to half value in Q&P-220-325 and Q&P-220-375 specimens.Peer ReviewedPostprint (published version

Quality of education and university workspaces

La sociedad actual avanza a pasos agigantados, circunstancia que exige de nuestro modelo educativo un cambio paralelo a dichos avances. La educación es uno de los motores de cambio y como tal debe dar respuesta a las exigencias que se le planteen. Es mucha la bibliografía que podemos encontrar acerca de la calidad educativa, pero muy poca de ésta se centra en la evaluación de la calidad de los espacios educativos como tales. Desde este estudio se pretende analizar los puntos de vista y exigencias de los estudiantes de la Facultad de Ciencias de la Educación de la Universidad de Granada respecto a dichos espacios educativos.Today's society is moving forward at a rapid pace, a fact that requires that our educational model change in parallel with such developments. Education is one of the drivers of change and as such must respond to the demands made on it. There is ample literature about the quality of education, but very little of it focuses on assessing the quality of educational spaces as such. The aim of this study is to examine the views and needs of students at the Faculty of Education at the University of Granada with respect to such educational spaces.Departamento de Psicología Socia

Physiological quality, content and activity of antioxidants in soybean seeds artificially aged.

ABSTRACT - The objective of this study was to evaluate physiological quality, content, and activity of antioxidants, in soybean seeds subjected to accelerated aging during different periods. Seeds of cultivars BRS 258, BRS 262 and BRS 268, subjected to accelerated aging during 12, 24, 36 and 48 hours and non-aged seeds were used. After each aging period, the seed were evaluated by tests of: germination; first count and tetrazolium. The total of phenolic compounds, total flavonoides, total of isoflavones, and activity for eliminating ABTS°+ radicals were quantified. There were differences among cultivars according to vigor and viability only after seeds were aged. Cultivars BRS 158 and BRS 268 have shown better seed physiological quality in each aging period; however, not presenting higher amounts of isoflavones and efficiency in removing free radicals. For all cultivars, the values for total of phenolic compounds, as well as total of flavonoids have shown quadratic positive behavior; the values for isoflavones remained constant and the vigor and viability showed contrary trend to activity of antioxidant agents. RESUMO: Qualidade fisiológica, conteúdo e atividade de antioxidantes presentes em sementes de soja envelhecidas artificialmente. O objetivo deste trabalho foi avaliar a qualidade fisiológica, o conteúdo e a atividade de agentes antioxidantes presentes em sementes de soja envelhecidas durante diferentes períodos. Foram utilizadas sementes das cultivares BRS 258, BRS 262 e BRS 268, envelhecidas durante 12, 24, 36 e 48 h e sementes não envelhecidas. Após cada período de envelhecimento, as sementes foram avaliadas pelo testes de: germinação; primeira contagem e tetrazólio. Foram quantificados: compostos fenólicos totais; flavonóides totais; total de isoflavonas e atividade eliminadora do radical ABTS°+. Houve diferença entre as cultivares em relação ao vigor e viabilidade somente quando foram envelhecidas. BRS 158 e BRS 268 apresentaram melhor qualidade fisiológica de sementes em cada período de envelhecimento, porém, não apresentaram maior quantidade de isoflavonas e eficiência no sequestro dos radicais livres. Para todas as cultivares, os valores de compostos fenólicos totais, assim como os flavonóides totais, apresentaram comportamento quadrático positivo; os valores das isoflavonas permaneceram constantes e o vigor e a viabilidade apresentaram tendência contrária à atividade dos agentes antioxidantes