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1
artículo
Publicado 2022
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The unique process has been strengthened with the adoption of two directives within the Judiciary, which promote virtuality, concentration of procedural acts and orality. In this way, this branch of the State evidences its commitment to the progress of family procedural law and the expeditious settlement of cases in favor of children and adolescents. The author of this article analyzes directives from the jurisdictional scope, developing contributions for the correct use by the judicial user.
2
artículo
Publicado 2010
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Industrial effluents without treatment or supervision by the authorities pollute the environment. Solving the problem does not go only by the control, supervision and penalties for companies that generate effluents, require its own investigation as well as develop specific treatments, accessible and affordable that can be adopted by each industry. The primary treatment is removal by physical or chemical means a substantial part of sedimentable or floating material, reducing an important fraction of the organic load, which represents a significant percentage of solid contaminants. Within the types of primary treatment quote coagulation and flocculation. The main objective was to evaluate the efficacy of two coagulants in reducing the pollution potential of effluents from the fruit processing plant. To make the primary treatment: were assayed two chemical substances, aluminum sulfate as in...
3
artículo
Publicado 2010
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Industrial effluents without treatment or supervision by the authorities pollute the environment. Solving the problem does not go only by the control, supervision and penalties for companies that generate effluents, require its own investigation as well as develop specific treatments, accessible and affordable that can be adopted by each industry. The primary treatment is removal by physical or chemical means a substantial part of sedimentable or floating material, reducing an important fraction of the organic load, which represents a significant percentage of solid contaminants. Within the types of primary treatment quote coagulation and flocculation. The main objective was to evaluate the efficacy of two coagulants in reducing the pollution potential of effluents from the fruit processing plant. To make the primary treatment: were assayed two chemical substances, aluminum sulfate as in...
4
artículo
The aim of this study was to extract collagen from the waste produced in the processing of anchovies (canned and surimi). To this end, non-collagenous proteins was solubilized with a solution of 0,1N sodium hydroxide and neutralized with successive washes with water (pH close to neutral). Then, the residues were decalcified with a EDTA 0,5M solution; degreased with butanol 10% and finally the collagen protein were solubilized with acetic acid 0,5M and precipitated with sodium chloride 2,6M. Collagen precipitated was dialyzed and lyophilized. The hydroxyproline content (Hip) were quantified in waste and lyophilized collagen, getting the values of 6,5 and 52,9 mg of hydroxyproline/g sample, respectively. The solubility of lyophilized collagen decreased about 40% at a concentration of 12% NaCl. Gel electrophoresis showed a strong band of approximately 110 kDa molecular weight that correspon...
5
artículo
The coffee industry, coffee shops and restaurants are in constant expansion and growth. Consequently, large amounts of Spent Coffee Grounds (SCG) are generated, which are solid coffee residues obtained after the ground coffee leaching process. This residue can be reused because of its compounds as phenolics. The objective of the present study was to evaluate the effect of extraction time (30-90 min) assisted by ultrasound (45kHz and 50 W), liquid-solid ratio (10-40 ml/g) and ethanol concentration (20-93.8%) in the total phenolic compounds (CFT) content expressed as mg gallic acid/g SCG dry matter. Surface response methodology (MSR) was used, as an efficient technique that minimizes the number of experiments, through the central rotational compound design (DCCR) to determine the effect of these 3 factors and to perform the optimization of the extraction process conditions of total phenoli...
6
artículo
The coffee industry, coffee shops and restaurants are in constant expansion and growth. Consequently, large amounts of Spent Coffee Grounds (SCG) are generated, which are solid coffee residues obtained after the ground coffee leaching process. This residue can be reused because of its compounds as phenolics. The objective of the present study was to evaluate the effect of extraction time (30-90 min) assisted by ultrasound (45kHz and 50 W), liquid-solid ratio (10-40 ml/g) and ethanol concentration (20-93.8%) in the total phenolic compounds (CFT) content expressed as mg gallic acid/g SCG dry matter. Surface response methodology (MSR) was used, as an efficient technique that minimizes the number of experiments, through the central rotational compound design (DCCR) to determine the effect of these 3 factors and to perform the optimization of the extraction process conditions of total phenoli...
7
artículo
The coffee industry, coffee shops and restaurants are in constant expansion and growth. Consequently, large amounts of Spent Coffee Grounds (SCG) are generated, which are solid coffee residues obtained after the ground coffee leaching process. This residue can be reused because of its compounds as phenolics. The objective of the present study was to evaluate the effect of extraction time (30-90 min) assisted by ultrasound (45kHz and 50 W), liquid-solid ratio (10-40 ml/g) and ethanol concentration (20-93.8%) in the total phenolic compounds (CFT) content expressed as mg gallic acid/g SCG dry matter. Surface response methodology (MSR) was used, as an efficient technique that minimizes the number of experiments, through the central rotational compound design (DCCR) to determine the effect of these 3 factors and to perform the optimization of the extraction process conditions of total phenoli...
8
artículo
The coffee industry, coffee shops and restaurants are in constant expansion and growth. Consequently, large amounts of Spent Coffee Grounds (SCG) are generated, which are solid coffee residues obtained after the ground coffee leaching process. This residue can be reused because of its compounds as phenolics. The objective of the present study was to evaluate the effect of extraction time (30-90 min) assisted by ultrasound (45kHz and 50 W), liquid-solid ratio (10-40 ml/g) and ethanol concentration (20-93.8%) in the total phenolic compounds (CFT) content expressed as mg gallic acid/g SCG dry matter. Surface response methodology (MSR) was used, as an efficient technique that minimizes the number of experiments, through the central rotational compound design (DCCR) to determine the effect of these 3 factors and to perform the optimization of the extraction process conditions of total phenoli...
9
10
artículo
Publicado 2019
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The leather tanning industry produces a large amount of wastewater and solid waste containing a significant amount of chromium, the wet blue chip is a solid micro-cocoa particulate material impregnated with chromium synthetic oil and grease and tanning agents. The objective of the study was to investigate the production of an agglomerate from an adhesive obtained from the wet blue chip produced by alkaline hydrolysis at 60 ° C temperature, 0.4N NaOH and 4 hrs. for neutralization. To obtain the agglomerate, 2 kg of sawdust of 1 mm of ebony wood was used, which was dried at 105 ° C for 4 hours, then manual mixing was carried out in two proportions; 125 g of adhesive and 250 g of sawdust (0.5 / 1), and a second proportion of 250 g of adhesive and 250 g of sawdust (1/1), the mixtures were carried out for 20 minutes at room temperature, the pressing was cold at 100kg / cm2, in stainless ste...
11
artículo
Publicado 2020
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In the current scientific literature refers to the contributions from the Neurosciences for the understanding of learning processes. This is how, as well as from the branches of Neurosciences, such as Cognitive Neuroscience, specific contributions are bornthat facilitates the understanding of these processes. On the other hand, Neuroeducation as a new discipline proposes to take these contributions from the Neurosciences for the improvement of educational practices, and thereby optimize learning. The objective of this article is to analyze the theoretical contributions in force from the Neurosciences, to understand the learning situated in educational contexts. For this, the relationship of the concepts Neuroscience, Cognitive Neuroscience and Neuroeducation is alluded to. In addition, the main contributions from the Neurosciences are analyzed to understand the processes of neuroplastici...
12
artículo
The current study has determined that the materials from brass to bismuth, 1.11%, 1.46% and 2.48% respectively, have the following characteristics: the brass to bismuth material drawing, uniform round bar of 19 mm which microstructure is formed by α + β, shows inclusions of bismuth in the grain limits and in the same grain. The grain deformation is smaller on the surface, and it becomes bigger as it reaches the center. The mechanical properties of the 19 mm drawing material, I and II are bigger than the established by the ASTM B 16/B 16M, being the HRB hardness higher than the established by the norm. Also the material is wrought to obtain pieces for gas valves. The machinability index of the brass’s drawing materials that contains bismuth between 1.0 and 2.5% should be in a range from 85 and 90
13
artículo
Publicado 2007
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The forensic anthropology in Perú has a recent development, because of the investigations assumed around the Armed Conflict Internal 1980-2000. One of the main issues in such tasks is the search of the missing persons and the identification of the victims exhumed, many of them remaining unidentified. The document pretends to illustrate about each one of the methods used for identification and its application, as well as its validity and its acceptance inside the legal processes, emphasising on the need of use reliable systems, to assurance a minimum of confidence to all those who are involved. The text tries to be exhaustive regarding to the systems of the facial reconstruction and the skull/photo superimposition, due to the over estimation of its effectiveness as reliable identification methods, during a considerable time. In that sense, the article tries to explain how and why it is n...
14
artículo
Publicado 2010
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La pitajaya (Selenicereus megalanthus) es una fruta exótica que se encuentra en las selvas amazónicas, en el caso de Perú, se encuentra con mayor frecuencia en la selva alta. Se caracteriza por tener alto contenido de vitamina C y antioxidantes, lo que la hace apetecible de ser comercializada. Respecto a su procesamiento, este debe ser realizado cerca a la fuente de materias primas, para reducir los costos que se generen. Por el tipo de fruta, no cabe duda que ya procesado puede ser considerado una oportunidad para los pueblos amazónicos eleven su nivel de vida comercializando la pitajaya.
15
artículo
Publicado 2001
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The present work deals with the proposed treatment scheme for the recovery of PVC and PET using mineral processing operations such as: size reduction. Separation by dense means, alkaline treatment and flotation. The results achieved at the laboratory level indicate that 95% of PVC and 97% of PET can be recovered from the selected sample of plastic containers collected in a residual sector of the city of Bucaramanga, Colombia.
16
artículo
Publicado 2001
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The present work deals with the proposed treatment scheme for the recovery of PVC and PET using mineral processing operations such as: size reduction. Separation by dense means, alkaline treatment and flotation. The results achieved at the laboratory level indicate that 95% of PVC and 97% of PET can be recovered from the selected sample of plastic containers collected in a residual sector of the city of Bucaramanga, Colombia.
17
artículo
Publicado 2022
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This paper emerged as a synthesis of the first chapter of the doctoral thesis called "Didactic strategy for the Financial Mathematics subject in the Business Administration Career of the State University of Milagro in the Republic of Ecuador". The objective of this paper is to systematize the theoretical-methodological references that support the teaching-learning process of the Financial Mathematics subject from the Historical-Cultural approach. For this, a documentary research was carried out that supports that any process of teaching-learning of Financial Mathematics subject must be based on the development of thought, reasoning and social awareness, cognitive skills that facilitate problem solving and decision-making in environments of uncertainty
18
artículo
Publicado 2012
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The objectives of this study were, to optimize the performance of biodiesel from rapeseed wild oil depending on the molar ratio methanol / oil, the concentration of NaOH and KOH homogeneous catalysts, temperature and time of transesterification through the response surface methodology, and determining the physicochemical characteristics of biodiesel obtained under optimized conditions. A Plackett and Burman (PB12) design was applied for the screening stage and a rotatable central composite design (DCCR) for the final optimization. The conditions that maximize the yield of biodiesel (77.8%) were obtained at concentrations of 0 to 0.2% NaOH and 0.4 to 0.6% KOH, with time from 77 to 81 minutes, keeping constant the molar ratio of methanol/oil in 6/1 and a temperature of 60 °C. The physicochemical properties of biodiesel obtained under optimized conditions meet the technical specifications ...
19
artículo
Publicado 2012
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The objectives of this study were, to optimize the performance of biodiesel from rapeseed wild oil depending on the molar ratio methanol / oil, the concentration of NaOH and KOH homogeneous catalysts, temperature and time of transesterification through the response surface methodology, and determining the physicochemical characteristics of biodiesel obtained under optimized conditions. A Plackett and Burman (PB12) design was applied for the screening stage and a rotatable central composite design (DCCR) for the final optimization. The conditions that maximize the yield of biodiesel (77.8%) were obtained at concentrations of 0 to 0.2% NaOH and 0.4 to 0.6% KOH, with time from 77 to 81 minutes, keeping constant the molar ratio of methanol/oil in 6/1 and a temperature of 60 °C. The physicochemical properties of biodiesel obtained under optimized conditions meet the technical specifications ...
20
artículo
Publicado 2024
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Los aceites esenciales extraídos de diversas partes de las plantas han sido empleados desde tiempos ancestrales con fines medicinales, condimentarios, conservantes y aromatizantes. En este estudio, se llevó a cabo una exhaustiva revisión bibliográfica sobre el uso de aceites esenciales en la industria de embutidos. Se empleó la metodología PRISMA para recopilar la información, obteniendo un total de 15 documentos técnicos y 17 documentos específicos sobre aceites de plantas aromáticas y sus efectos en productos cárnicos, siguiendo criterios de inclusión y considerando palabras clave relevantes. En conclusión, la inclusión de aceites esenciales en la elaboración de productos cárnicos no solo favorece su conservación, sino que también mejora sus características organolépticas y añade funcionalidad al producto final. Este estudio destaca la importancia de los aceites es...
