Resumo: Embora a mortalidade por doença isquêmica do coração tenha diminuído nas últimas décadas na Argentina, a doença isquêmica do coração continua sendo uma das causas mais frequentes de morte. Os objetivos deste estudo foram descrever o papel de fatores individuais e contextuais na mortalidade prematura por doença isquêmica do coração e analisar como as diferenças educacionais na mortalidade prematura por doença isquêmica do coração mudaram durante as flutuações econômicas em duas províncias da Argentina durante o período 1990-2018. Para testar a relação entre fatores individuais (idade, sexo e escolaridade) e contextuais (urbanização, pobreza e variações macroeconômicas), estimou-se um modelo de Poisson multinível. Controlando o nível de pobreza no nível departamental, observaram-se desigualdades na mortalidade prematura por doença isquêmica do coração de acordo com o nível educacional dos indivíduos, afetando a população de baixa escolaridade; a expansão econômica esteve relacionada ao aumento da mortalidade por doença isquêmica do coração; no entanto, os anos de expansão não foram associados a aumentos nas desigualdades educacionais na mortalidade por doença isquêmica do coração. No nível departamental, não foi detectada uma associação contextual entre nível socioeconômico da área e risco de mortalidade por doença isquêmica do coração. Apesar do contínuo declínio da mortalidade por doença isquêmica do coração na Argentina, este estudo destaca que as desigualdades sociais em relação ao risco de mortalidade aumentaram ao longo do tempo. Portanto, as políticas de prevenção devem ser mais focadas nas populações de menor nível socioeconômico na Argentina.

Resumen: Si bien la mortalidad por cardiopatía isquémica ha disminuido en las últimas décadas en Argentina, la cardiopatía isquémica sigue siendo una de las causas más frecuentes de muerte. Los objetivos de este estudio fueron describir el papel de los factores individuales y contextuales en la mortalidad prematura por cardiopatía isquémica y analizar cómo estos cambiaron las diferencias educativas en la mortalidad prematura por cardiopatía isquémica durante las variaciones económicas en dos provincias de Argentina durante el periodo 1990-2018. Para probar la relación entre los factores individuales (edad, género y nivel de educación) y contextuales (urbanización, pobreza y variaciones macroeconómicas), se estimó un modelo de Poisson multinivel. Controlando el nivel de pobreza en el ámbito departamental, se observaron desigualdades en la mortalidad prematura por cardiopatía isquémica según el nivel de educación de los individuos, lo que afecta a la población con bajo nivel de educación; la expansión económica se relacionó con el aumento de la mortalidad por cardiopatía isquémica; sin embargo, el periodo de expansión no estuvo asociado a aumentos de las desigualdades educativas en la mortalidad por cardiopatía isquémica. En el ámbito departamental no se detectó asociación entre el nivel socioeconómico de la área y el riesgo de mortalidad por cardiopatía isquémica. A pesar de la disminución continua de la mortalidad por cardiopatía isquémica en Argentina, este estudio destaca que las desigualdades sociales con relación al riesgo de mortalidad tuvieron un aumento con el tiempo. Por lo tanto, las políticas de prevención deberán dirigirse más a las poblaciones de menor nivel socioeconómico en Argentina.

Abstract: Although mortality from ischemic heart disease has declined over the past decades in Argentina, ischemic heart disease remains one of the most frequent causes of death. This study aimed to describe the role of individual and contextual factors on premature ischemic heart disease mortality and to analyze how educational differentials in premature ischemic heart disease mortality changed during economic fluctuations in two provinces of Argentina from 1990 to 2018. To test the relationship between individual (age, sex, and educational level) and contextual (urbanization, poverty, and macroeconomic variations) factors, a multilevel Poisson model was estimated. When controlling for the level of poverty at the departmental level, we observed inequalities in premature ischemic heart disease mortality according to the educational level of individuals, affecting population of low educational level. Moreover, economic expansion was related to an increase in ischemic heart disease mortality, however, expansion years were not associated with increasing educational inequalities in ischemic heart disease mortality. At the departmental level, we found no contextual association beween area-related socioeconomic level and the risk of ischemic heart disease mortality. Despite the continuing decline in ischemic heart disease mortality in Argentina, this study highlighted that social inequalities in mortality risk increased over time. Therefore, prevention policies should be more focused on populations of lower socioeconomic status in Argentina.

Abstract: Although mortality from ischemic heart disease has declined over the past decades in Argentina, ischemic heart disease remains one of the most frequent causes of death. This study aimed to describe the role of individual and contextual factors on premature ischemic heart disease mortality and to analyze how educational differentials in premature ischemic heart disease mortality changed during economic fluctuations in two provinces of Argentina from 1990 to 2018. To test the relationship between individual (age, sex, and educational level) and contextual (urbanization, poverty, and macroeconomic variations) factors, a multilevel Poisson model was estimated. When controlling for the level of poverty at the departmental level, we observed inequalities in premature ischemic heart disease mortality according to the educational level of individuals, affecting population of low educational level. Moreover, economic expansion was related to an increase in ischemic heart disease mortality, however, expansion years were not associated with increasing educational inequalities in ischemic heart disease mortality. At the departmental level, we found no contextual association beween area-related socioeconomic level and the risk of ischemic heart disease mortality. Despite the continuing decline in ischemic heart disease mortality in Argentina, this study highlighted that social inequalities in mortality risk increased over time. Therefore, prevention policies should be more focused on populations of lower socioeconomic status in Argentina.

Resumen: Si bien la mortalidad por cardiopatía isquémica ha disminuido en las últimas décadas en Argentina, la cardiopatía isquémica sigue siendo una de las causas más frecuentes de muerte. Los objetivos de este estudio fueron describir el papel de los factores individuales y contextuales en la mortalidad prematura por cardiopatía isquémica y analizar cómo estos cambiaron las diferencias educativas en la mortalidad prematura por cardiopatía isquémica durante las variaciones económicas en dos provincias de Argentina durante el periodo 1990-2018. Para probar la relación entre los factores individuales (edad, género y nivel de educación) y contextuales (urbanización, pobreza y variaciones macroeconómicas), se estimó un modelo de Poisson multinivel. Controlando el nivel de pobreza en el ámbito departamental, se observaron desigualdades en la mortalidad prematura por cardiopatía isquémica según el nivel de educación de los individuos, lo que afecta a la población con bajo nivel de educación; la expansión económica se relacionó con el aumento de la mortalidad por cardiopatía isquémica; sin embargo, el periodo de expansión no estuvo asociado a aumentos de las desigualdades educativas en la mortalidad por cardiopatía isquémica. En el ámbito departamental no se detectó asociación entre el nivel socioeconómico de la área y el riesgo de mortalidad por cardiopatía isquémica. A pesar de la disminución continua de la mortalidad por cardiopatía isquémica en Argentina, este estudio destaca que las desigualdades sociales con relación al riesgo de mortalidad tuvieron un aumento con el tiempo. Por lo tanto, las políticas de prevención deberán dirigirse más a las poblaciones de menor nivel socioeconómico en Argentina.

Resumo: Embora a mortalidade por doença isquêmica do coração tenha diminuído nas últimas décadas na Argentina, a doença isquêmica do coração continua sendo uma das causas mais frequentes de morte. Os objetivos deste estudo foram descrever o papel de fatores individuais e contextuais na mortalidade prematura por doença isquêmica do coração e analisar como as diferenças educacionais na mortalidade prematura por doença isquêmica do coração mudaram durante as flutuações econômicas em duas províncias da Argentina durante o período 1990-2018. Para testar a relação entre fatores individuais (idade, sexo e escolaridade) e contextuais (urbanização, pobreza e variações macroeconômicas), estimou-se um modelo de Poisson multinível. Controlando o nível de pobreza no nível departamental, observaram-se desigualdades na mortalidade prematura por doença isquêmica do coração de acordo com o nível educacional dos indivíduos, afetando a população de baixa escolaridade; a expansão econômica esteve relacionada ao aumento da mortalidade por doença isquêmica do coração; no entanto, os anos de expansão não foram associados a aumentos nas desigualdades educacionais na mortalidade por doença isquêmica do coração. No nível departamental, não foi detectada uma associação contextual entre nível socioeconômico da área e risco de mortalidade por doença isquêmica do coração. Apesar do contínuo declínio da mortalidade por doença isquêmica do coração na Argentina, este estudo destaca que as desigualdades sociais em relação ao risco de mortalidade aumentaram ao longo do tempo. Portanto, as políticas de prevenção devem ser mais focadas nas populações de menor nível socioeconômico na Argentina.

Abstract Structural rejuvenation is one of the key topics in the field of metallic glasses (MGs). In this work, we evaluated the combined effects of annealing treatment and elastic cyclic loading to discover pathways for promoting structural rejuvenation and improving the mechanical properties in the MGs. Using molecular dynamics (MD) simulations, it was revealed that the sole cyclic loading led to the increase of rejuvenation degree; however, a saturated state was observed upon the 40th cycle. On the other side, the sample exposed to the combined treatment exhibited a slight relaxation at the first step of cycling process and then a sharp rejuvenation degree was detected in the material. The thorough analyses indicated that the change in the fraction of coordination polyhedrons at the relaxation stage was the main reason for the extra rejuvenation in the sample exposed to the combined treatments. The results also suggest that the combination of rejuvenation treatments improves the magnitude of rejuvenation in the amorphous alloys. It should be noted that the increase of rejuvenation in the alloying systems accompanied with a reduction in the tensile strength and an enhancement in the homogenous plastic deformation.

Abstract Due to the high capacity of food factories, a lot of waste is generated. Due to the presence of nutrients in them can increase pollution in the sewerage network and cause environmental problems. To animal feed, grain waste can be used to produce fertilizer, compost, fuel, soil cover, etc. The natural pigment lycopene, thickeners, proteins, etc., can be produced from the seeds and skin of the tomato paste factory waste. In the present paper, soybean oil residue was used to remove cadmium, zinc, and lead ions from aqueous solutions. Discontinuous experiments to investigate the effect of initial concentration (100-300 ppm), solution pH (1-5), contact time (1-60 min), adsorbent amount (0.02-2 g) on the uptake of cadmium, zinc, and lead ions by soybean oil residues. The results showed that with increasing the pH, the value of the contact time, the amount of adsorbent, and the adsorption rate increases with increasing the initial concentration of metal ions, the adsorption rate decreases. According to the results, the best pH for adsorption of metal ions is about 3-5, and the equilibrium time for cadmium ions is 40 minutes, for zinc ions is 20 minutes, and for lead, the ion is 10 minutes.

Abstract Yeasts are widely used as cellular factors in the production of bread and, more recently, various metabolic products such as vitamins, ethanol, citric acid, and lipids. Lipids synthesized by microorganisms are used in the pharmaceutical industry for technical purposes or as feed. The ability of the superior microorganism to grow on the xylose and the amount of fat production in this area were measured under optimal conditions. Xylose is one of the most abundant 5-carbon sugars in nature, and microorganisms that can grow on it are important. In this paper, the effect of different values of ammonium sulfate concentration, glucose concentration, temperature, aeration, incubation time, and pH are investigated. The results showed that with increasing ammonium sulfate concentration, glucose concentration, Incubation time, and pH, values of production of lipids, dry biomass, and percentage of lipid production by dry weight increased. Also, increasing the values of temperature and aeration has reduced the mentioned values. Finally, it can be said that the values for the studied parameters are: Concentration 1 g/L for ammonium sulfate, concentration 100 g/L for glucose, temperature 2 °C, aeration 150 rpm, incubation time 72 h, and pH equal to 6.5.

Abstract Starch is a versatile food component with several industrial applications. Its chemically altered derivatives provide a wide range of high-tech applications in the food and non-food markets. Altered starches are intended to compensate for one or more of native starches' drawbacks, such as decrease of viscosity and hardening ability during processing and preservation, especially at low pH, syneresis, retrogradation properties, and so on. Some of the most frequent modifications used to create starch derivatives include cross-linking, dextrinization, hydroxy alkylation, esterification, and oxidation. The effect of the amount of modified starch, the amount of glycerol, and the drying temperature on the film performance of dry heat modified lotus seed starch were studied. The film performance indexes were optimized by response surface analysis and weighted evaluation function method. The optimal film forming conditions for dry heat modified lotus seed starch was obtained as follows: the amount of modified lotus seed starch was 3.53%, the amount of glycerol was 1.51%, and the drying temperature was 80 °C. This research result will provide theoretical guidance for the industrial production of dry heat-modified lotus seed starch edible film.