73 research outputs found
Marketing interno para la atención al usuario en una municipalidad provincial del departamento de Piura – 2020
El objetivo general de esta investigación fue determinar las características del
marketing interno que se aplica para la mejor atención al usuario en una
Municipalidad Provincial del Departamento de Piura – 2020. El estudio fue de
tipo aplicado, enfoque cuantitativo, así como de diseño no experimental,
transeccional y descriptivo. Como instrumentos de investigación se aplicaron dos
cuestionarios, uno a trabajadores y otro a usuarios. Las muestras de estudio
fueron de 186 trabajadores y 384 usuarios de la municipalidad. Se determinó que
el bienestar del colaborador no es importante para la institución y esto se refleja
en la falta de interés y apoyo en el desarrollo de las distintas actividades
laborales; el liderazgo que se desarrolla no es el correcto, tampoco existe un
ambiente físico adecuado, el cual permita desarrollar un trabajo organizado y en
beneficio del usuario. La capacidad de respuesta y nivel profesional del personal
se encuentra en un nivel bastante bajo y deficiente; la reducción de tiempo y
movimientos no se desarrollan eficientemente en la organización. Por tanto, se
concluye que el marketing interno para mejorar la atención al usuario se
encuentra en un nivel bajo, sin embargo, la organización puede sumar esfuerzos
para fortalecer sus recursos físicos y humanos. En consecuencia, el desempeño
actual de los trabajadores puede mejorar en aras de cumplir las metas
establecidas y brindar satisfacción a los usuarios
Bagazo de sorgo dulce: una alternativa para la producción de etanol de segunda generación en Colombia (Parte I)
Each lignocellulosic material is a new terrain to be explored, therefore, the physical chemical characterization of these materials is a fundamental step for the biotransformation process. The lignocellulosic composition of sweet sorghum bagasse was determined, values close to values reported in the literature were found. Pretreatment technologies were explored with steam, mild acid hydrolysis, alkaline delignification, NH3 soaking, AFEX, ozonolysis and alkaline peroxide; Being that the alkaline delignification with NaOH is the best option to pre-treat this substrate. The lignin content was decreased by 52% and ethanol productivity of 0.87 g / Lh was obtained, which equates to a yield of 114 L of ethanol / Ton bagasse of pre-treated dry sweet sorghum.Cada material lignocelulósico es un nuevo terreno por explorar, por tanto, la caracterización físico-química de estos materiales es un paso fundamental para el proceso de biotransformación. Se determinó la composición lignocelulósica del bagazo de sorgo dulce, encontrándose valores cercanos a los valores reportados en la literatura. Se estudiaron las tecnologías de pretratamiento, explosión con vapor, hidrólisis ácida suave, deslignificación alcalina, remojo con NH3, pretratamiento con amoniaco AFEX, ozonólisis y peróxido alcalino; encontrándose que la deslignificación alcalina con NaOH es la mejor opción para pretratar este sustrato. Se disminuyó el contenido de lignina en un 52% y se obtuvo una productividad a etanol de 0,87 g/L h, lo cual equivale a un rendimiento de 114 L de etanol/Ton bagazo de sorgo dulce seco pretratado
Assessment of maturity of reverse logistics as a strategy to sustainable solid waste management
Small- and medium-sized enterprises primarily focus on their operations and rarely pay attention to issues related to sustainable solid waste management that originate from their production processes. A suitable strategy to support sustainable solid waste management is reverse logistics. Through the use of maturity models, it is possible to determine the grade to which small- and medium-sized enterprises are prepared to perform this strategy. This study proposes an adapted maturity model to measure maturity levels of reverse logistics aspects at small- and medium-sized enterprises in regions from Colombia in order to contribute to sustainable solid waste management. The maturity model was applied to seven small- and medium-sized enterprises in the plastics sector in the central and southern regions of Colombia by adapting a maturity model that was previously correlated to suggested drivers and barriers in this sector. Results show that maturity levels range from naïve to immature owing to the incipient development of reverse logistics in Colombia. Therefore, it is necessary to establish a holistic vision of the organisation to improve the reverse logistics decision-making process to achieve sustainable solid waste managemen
The effects of stimulus intensity and age on visual-evoked potentials (VEPs) in normal children
This is the peer reviewed version of the following article: Carrillo-de-la-Peña, M.T.; Rodríguez Holguín, S.; Cadaveira, F. (1999). The effects of stimulus intensity and age on visual-evoked potentials (VEPs) in normal children. Psychophysiology, 36(6), 693-698, which has been published in final form at https://doi.org/10.1111/1469-8986.3660693. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived VersionsIn this study, we explored the effects of flash intensity and age on visual-evoked potentials (VEPs) in a sample of 85 children aged 8–15 years. Results of previous studies are discrepant regarding the extent to which children show an evoked potential augmenting tendency at vertex, which has been reported to be a characteristic of an immature inhibitory control system. In the present study, VEPs to light flashes of four different intensities were recorded at Cz. The results confirmed that P1N1 and N1P2 at Cz were positively related to increases in stimulus intensity, whereas N1 was not related reliably to intensity. This difference between peak–peak and baseline–peak amplitude findings at Cz relative to evoked potential augmenting and reducing may help to explain discrepant results among earlier studies. Developmental changes were found for our sample of children that were independent of stimulus intensity: N1 amplitude increased significantly with age, whereas N1 latency showed a small (nonsignificant) age-related decreaseThis research was supported by the Spanish Ministry of Education and Culture (DGICYT) grant PB95-0856S
Anti-infective properties of medicinal plants from the Baja California peninsula, Mexico for the treatment of Fusarium oxysporum f. sp. basilici in organic sweet basil (Ocimum basilicum)
Certified-organic farming systems in Baja California Peninsula and Northwest Mexico are nationally and globally recognized, especially due to the production of vegetables and aromatic herbs under protected agriculture systems. Based on the background of some species of the flora of Baja California Sur (BCS) to inhibit a diversity of microorganisms, the effect of 22 medicinal plants of the region was explored to know the in vitro activity against the fungus Fusarium oxysporum f. sp. basilici isolated from basil (Ocimum basilicum L.). The plants processed as crude ethanolic and aqueous extracts were analyzed in duplicate (three replicates) evaluating the inhibition of mycelial growth and spore germination. In mycelial inhibition test, all plants extracts (1000 mg L-1) showed an effectiveness of 11 to 40% to inhibit F. oxysporum. The most effective plant extracts according to 50% effective inhibition dose (ED50), were Larrea tridentata, Hymenoclea monogyra and Lippia palmeri with an ED50 of 220, 303 and 3000 mg L-1, respectively. Tukey’s PostHoc tests indicated that H. monogyra and L. tridentata are ten times (ED50 <300 mg L-1) more effective than L. palmeri (ED50 3000 mg L-1). In addition, the dose-response trend analyzes according to the logarithmic-logistic model (drc packages), showed the maximum slope values between 100 and 1000 mg L-1. In the spore germination inhibition tests, most ethanolic extracts (5000 mg L-1) showed an effectiveness between 21 and 80%. The results of this study demonstrated that the inhibitory potential of these plants used in BCS traditional medicine are a viable alternative for the control of F. oxysporum f. sp. basilici in organic basil production systems.
Highlights
22 medicinal native plants from the Baja California peninsula can effectively inhibit (in vitro) oxysporum f. sp. basilica.
The most effective species were Larrea tridentata, Hymenoclea monogyra and Lippia palmeri with a mycelial growth inhibition (ED50) of 220, 300 and 3000 mg L-1, respectively.
In vitro effectiveness of Fusarium-growth inhibition of medicinal plants of BCS were in ED50 ranges from 220 to 3000 mg L-1.
Creosote bush (L. tridentata) extract at a dose of 5000 mg L-1 can inhibit the fungal sporulation by up 80%.
The ethanol-aqueous extract of the medicinal plants of BCS have the potential to be used for long-term control of the fusariosis disease in basil.Certified-organic farming systems in Baja California Peninsula and Northwest Mexico are nationally and globally recognized, especially due to the production of vegetables and aromatic herbs under protected agriculture systems. Based on the background of some species of the flora of Baja California Sur (BCS) to inhibit a diversity of microorganisms, the effect of 22 medicinal plants of the region was explored to know the in vitro activity against the fungus Fusarium oxysporum f. sp. basilici isolated from basil (Ocimum basilicum L.). The plants processed as crude ethanolic and aqueous extracts were analyzed in duplicate (three replicates) evaluating the inhibition of mycelial growth and spore germination. In mycelial inhibition test, all plants extracts (1000 mg L-1) showed an effectiveness of 11 to 40% to inhibit F. oxysporum. The most effective plant extracts according to 50% effective inhibition dose (ED50), were Larrea tridentata, Hymenoclea monogyra and Lippia palmeri with an ED50 of 220, 303 and 3000 mg L-1, respectively. Tukey’s PostHoc tests indicated that H. monogyra and L. tridentata are ten times (ED50 <300 mg L-1) more effective than L. palmeri (ED50 3000 mg L-1). In addition, the dose-response trend analyzes according to the logarithmic-logistic model (drc packages), showed the maximum slope values between 100 and 1000 mg L-1. In the spore germination inhibition tests, most ethanolic extracts (5000 mg L-1) showed an effectiveness between 21 and 80%. The results of this study demonstrated that the inhibitory potential of these plants used in BCS traditional medicine are a viable alternative for the control of F. oxysporum f. sp. basilici in organic basil production systems.
Highlights
22 medicinal native plants from the Baja California peninsula can effectively inhibit (in vitro) oxysporum f. sp. basilica.
The most effective species were Larrea tridentata, Hymenoclea monogyra and Lippia palmeri with a mycelial growth inhibition (ED50) of 220, 300 and 3000 mg L-1, respectively.
In vitro effectiveness of Fusarium-growth inhibition of medicinal plants of BCS were in ED50 ranges from 220 to 3000 mg L-1.
Creosote bush (L. tridentata) extract at a dose of 5000 mg L-1 can inhibit the fungal sporulation by up 80%.
The ethanol-aqueous extract of the medicinal plants of BCS have the potential to be used for long-term control of the fusariosis disease in basil
Producción de acelga (Beta vulgaris var. cicla L.) con efluente del cultivo de robalo (Centropomus viridis) en un sistema acuapónico
En los ecosistemas de zonas áridas y semiáridas la producción de alimentos es cada vez más compleja. Uno de los efectos más importantes es la desertificación donde el agua tiene un papel primordial. Por lo que, buscar estrategias de producción de alimento inocuo y de forma sustentable, es el reto actual. La producción de alimento mediante acuaponía es una alternativa para dar respuesta a esta problemática. En la Península de Baja California, las bajas precipitaciones anuales y las características geográficas hacen de forma natural que el agua sea escasa; pero si a esto se le suma el factor antropogénico, tenemos como resultado, acuíferos en su mayoría salobres. Bajo este contexto se analizó la eficiencia en el uso del efluente del cultivo de robalo, en el crecimiento de la acelga, en un sistema acuapónico. Se midieron los parámetros fisicoquímicos del efluente del robalo y cómo influyen en la respuesta morfométrica en la acelga bajo sistema hidropónico. La respuesta se comparó con un sistema tradicional con efluente de agua de pozo y con fertilización convencional. Se obtuvo mayor crecimiento en las plantas en sistema hidropónico, pero con efluente de agua de cultivo de robalo (con diferencia significativa en longitud, biomasa, área foliar y número de hojas). Este estudio demostró la eficiencia del uso del efluente del cultivo de robalo en el crecimiento y desarrollo de la acelga. Este conocimiento generará futuras investigaciones con aplicación en innovación biotecnológica que podrán ser empleadas por la sociedad, con beneficios por la capacidad de cultivar especies de calidad en densidad, aprovechar los nutrientes, controlar la disponibilidad de agua, aprovechar y mejorar las condiciones climáticas. Consideramos que este modelo robalo-acelga es ideal para los sistemas de producción con sustentabilidad
Determinación de la resistencia a la corrosión de los biomateriales Ti6Al4V y 316L, mediante análisis gravimétrico.
Being considered a biomaterial as a biological material application should be able to come into direct contact with living tissues for long periods of time in order to complete a specific structure, improving its functionality, without damage or affect the body that receives and also body fluids are extremely hostile to them, was compared during the development of this research, the behavior before the corrosive attack of biomaterials Ti6Al4V and 316L when exposed in saline (3.5% W), lactate ringer and a simulated physiological solution composed NaClKCl-CaCl2 -MgCl2 .6H2O-K2HPO4 -NaHCO3 -(CH2OH)3CNH2 of by gravimetric analysis, determining that after 3600 hours of testing no noticeable change the weight of the specimens was observed testedAl ser considerado un biomaterial como un material de aplicación biológica que debe ser capaz de entrar en contacto directo con tejidos vivos durante largos periodos de tiempo con la finalidad de completar una estructura específica, mejorando su funcionalidad, sin deteriorarse ni afectar al organismo que lo recibe y que además los fluidos corporales son extremadamente hostiles con ellos, se comparó, durante el desarrollo de la presente investigación, el comportamiento ante el ataque corrosivo de los biomateriales Ti6Al4V y 316L al ser expuestos en solución salina (3,5%W), lactato de ringer y una solución fisiológica simulada compuesta de NaCl-KCl-CaCl2-MgCl2.6H2O-K2HPO4-NaHCO3-(CH2OH)3CNH2, mediante análisis gravimétrico, determinando que después de 3600 horas de ensayo no se observó cambio notorio el peso de los especímenes sometidos a ensayo
El clero de la Nueva Granada durante la Independencia, influencia filosófica y teológica
 
Determinación de la resistencia a la corrosión de los biomateriales Ti6Al4V y 316L, mediante análisis gravimétrico.
Being considered a biomaterial as a biological material application should be able to come into direct contact with living tissues for long periods of time in order to complete a specific structure, improving its functionality, without damage or affect the body that receives and also body fluids are extremely hostile to them, was compared during the development of this research, the behavior before the corrosive attack of biomaterials Ti6Al4V and 316L when exposed in saline (3.5% W), lactate ringer and a simulated physiological solution composed NaClKCl-CaCl2 -MgCl2 .6H2O-K2HPO4 -NaHCO3 -(CH2OH)3CNH2 of by gravimetric analysis, determining that after 3600 hours of testing no noticeable change the weight of the specimens was observed testedAl ser considerado un biomaterial como un material de aplicación biológica que debe ser capaz de entrar en contacto directo con tejidos vivos durante largos periodos de tiempo con la finalidad de completar una estructura específica, mejorando su funcionalidad, sin deteriorarse ni afectar al organismo que lo recibe y que además los fluidos corporales son extremadamente hostiles con ellos, se comparó, durante el desarrollo de la presente investigación, el comportamiento ante el ataque corrosivo de los biomateriales Ti6Al4V y 316L al ser expuestos en solución salina (3,5%W), lactato de ringer y una solución fisiológica simulada compuesta de NaCl-KCl-CaCl2-MgCl2.6H2O-K2HPO4-NaHCO3-(CH2OH)3CNH2, mediante análisis gravimétrico, determinando que después de 3600 horas de ensayo no se observó cambio notorio el peso de los especímenes sometidos a ensayo
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