Modelo de planeación estrategica para el uso eficiente de la energía eléctrica, así como la minimización y manejo adecuado de residuos solidos urbanos y de manejo especial en un laboratorio de análisis clínico

En este proyecto se desarrolla un modelo de planeación basado en la metodología de un sistema de gestión ambiental para generar una propuesta estratégica para el uso eficiente de energía, así como la minimización y manejo adecuado de residuos sólidos urbanos y de manejo especial en la empresa laboratorio de análisis clínico, proponiendo programas, basados en el resultado de análisis sobre el consumo de energía y generación de residuos así como también, un manual de gestión ambiental que servirá de base para una posterior certificación en ISO 14001:2004. Para identificar la problemática se realizó una matriz de identificación de aspectos ambientales donde esta arroja que los principales problemas para el laboratorio de análisis clínico son energía eléctrica y residuos sólidos urbanos y de manejo especial por la falta de planeación lo cual genera un alto consumo energético y una confusa clasificación de residuos. Se realizó una investigación acerca del consumo de energía, así como de los residuos generados y la separación de estos con la finalidad de establecer un objetivo medible ya que se busca optimizar el uso de energía existente mediante programas sobre buenas prácticas e identificar el proceso de separación de residuos y realizar los programas necesarios para la reducción y reutilización

<i>Moringa oleifera</i> as a Natural Alternative for the Control of Gastrointestinal Parasites in Equines: A Review

Studies have shown a wide variety of parasites that infect horses, causing major gastrointestinal damage that can lead to death, and although the main method of control has been synthetic anthelmintics, there are parasites that have developed resistance to these drugs. For generations, plants have been used throughout the world as a cure or treatment for countless diseases and their symptoms, as is the case of Moringa oleifera, a plant native to the western region. In all its organs, mainly in leaves, M. oleifera presents a diversity of bioactive compounds, including flavonoids, tannins, phenolic acids, saponins, and vitamins, which provide antioxidant power to the plant. The compounds with the greatest antiparasitic activity are tannins and saponins, and they affect both the larvae and the oocytes of various equine gastrointestinal parasites. Therefore, M. oleifera is a promising source for the natural control of gastrointestinal parasites in horses

Clones de nopal Oreja de Elefante Mexicana con potencial forrajero

Evaluar clones del cultivar de nopal Oreja de Elefante Mexicana (Opuntia stricta Haw),conelobjetivo de encontrar elque mostraracaracterísticas agronómicas y zootécnicas para ser considerado con potencial forrajero, se llevó a cabo un experimento en el Instituto Agronómico de Pernambuco (IPA), localizado en las coordenadas 08° 25’15’’ latitud sur y 37° 03’41’’longitud oeste, a 663 msnm, con una precipitación de 692 mm. El periodo experimental comprendió de enero 2014 a julio de 2015 y los clones utilizados fueron Lisa 1, Lisa 2, Seg CV, Planta mãe, Seg 1, Seg 2, Seg 3, Seg 4, Seg 5 y Seg 6. Las variables evaluadas fueron producción(t MS ha-1), número de cladodios en planta (NC), altura de la planta (AP), ancho de la planta (ANP), cantidad de espina (CE), tamaño de espina (TE) y cantidad de gloquidio (CG); dentro de cada planta se midió en cladodios, perímetro (P), longitud (LC),ancho (ANC) y grosor (GC), número de líneas (LCP) y número de yemas (YCP). El diseño experimental fue completamente al azar y la prueba de comparación de medias con Tukey (p0.05). Se presentaron diferencias entre clones (p≤ 0.05) lisa 2, mostró la menor CE, TE, CG, y la menor producción(6.45 t MS ha-1), el clon Seg CV, presentó mayor producción(67.41 t MS ha-1), NC, AP, y ANP;sin embargo, también presentó mayor CE, TE y CG por lo que pese a su rendimientono muestra las mejores características agronómicas y zootécnicasEvaluar clones del cultivar de nopal Oreja de Elefante Mexicana (Opuntia stricta Haw), con el objetivo de encontrar el que mostrara características agronómicas y zootécnicas para ser considerado con potencial forrajero, se llevó a cabo un experimento en el Instituto Agronómico de Pernambuco (IPA), localizado en las coordenadas 08° 25’ 15’’ latitud sur y 37° 03’ 41’’ longitud oeste, a 663 msnm, con una precipitación de 692 mm. El periodo experimental comprendió de enero 2014 a julio de 2015 y los clones utilizados fueron Lisa 1, Lisa 2, Seg CV, Planta mãe, Seg 1, Seg 2, Seg 3, Seg 4, Seg 5 y Seg 6. Las variables evaluadas fueron producción (t MS ha-1), número de cladodios en planta (NC), altura de la planta (AP), ancho de la planta (ANP), cantidad de espina (CE), tamaño de espina (TE) y cantidad de gloquidio (CG); dentro de cada planta se midió en cladodios, perímetro (P), longitud (LC), ancho (ANC) y grosor (GC), número de líneas (LCP) y número de yemas (YCP). El diseño experimental fue completamente al azar y la prueba de comparación de medias con Tukey (p 0.05). Se presentaron diferencias entre clones (p≤ 0.05) lisa 2, mostró la menor CE, TE, CG, y la menor producción (6.45 t MS ha-1), el clon Seg CV, presentó mayor producción (67.41 t MS ha-1), NC, AP, y ANP; sin embargo, también presentó mayor CE, TE y CG por lo que pese a su rendimiento no muestra las mejores características agronómicas y zootécnicas

Desarrollo de una estrategia comercial para la empresa S.S.G. enfocada a la industria alimenticia en el D.F. Caso específico: posicionar los servicios de certificación de inocuidad alimentaria

Seminario: La efectividad empresarial basada en tácticas y estrategias comerciales para entornos competitivo

Reduction of Enteric Methane Emissions in Heifers Fed Tropical Grass-Based Rations Supplemented with Palm Oil

Vegetable oils have been shown to reduce enteric methane (CH4) production by up to 20%. However, when the level of incorporation exceeds the threshold of 70 g/kg DM, dry matter intake (DMI) and nutrient digestibility may be reduced. The objective of this study was to determine the effects of the incorporation of three levels of palm oil (PO) on enteric CH4 emissions, rumen fermentation and apparent digestibility in heifers fed low-quality grass. Four rumen-cannulated heifers (Bos taurus &times; Bos indicus) were randomly assigned to four treatments: control (CON) and three increasing PO levels: 20, 40 and 60 g/kg in a 4 &times; 4 Latin square design with four periods of 22 days (14 days of adaptation to the ration), 5 days of feces and rumen fluid sampling (day 18, 4 h postprandial) and the last 3 days for measurements of CH4 in respiration chambers. With the exception of CP (p = 0.04), starch (p = 0.002) and EE (p &lt; 0.001), the intake of nutrients was not affected by the inclusion of PO (p &gt; 0.05). The apparent digestibility (AD) of nutrients was not affected by the inclusion of PO (p &gt; 0.05), except for starch, which reduced its AD as the PO level was increased (p &lt; 0.05). The gross energy intake was higher in PO-containing rations (p = 0.001), on the other hand, the digestible energy intake was similar between treatments (p &gt; 0.05). In situ ruminal digestion kinetics and the potential degradability remained unchanged (p &gt; 0.05), however, the effective degradability decreased with the inclusion of PO in the rations (p &lt; 0.05). The ruminal pH and molar proportions of acetic, isovaleric and valeric acid were not different between treatments (p &gt; 0.05). The ruminal concentration of propionic acid increased as the PO level increased, reaching its highest molar proportion with 60 g/kg PO (p &lt; 0.05), however, the acetic/propionic ratio and the molar proportions of butyric acid and isobutyric acid decreased as the PO level increased (p &lt; 0.05). The total daily CH4 production was lower in diets containing 20, 40 and 60 g/kg PO compared to the CON diet (p &lt; 0.001). The production of CH4 per kg DMI and DOMI was greater (p &lt; 0.05) for the CON diet compared to all three rations containing PO. The emission intensity, Ym, energy lost as CH4, emission factor (EF) and kg CO2 eq/year were reduced as an effect of the inclusion of PO (p &lt; 0.05). Based on the results obtained, it is concluded that the incorporation of PO in cattle rations has the potential to reduce enteric methane emissions by 4% for every 10 g/kg PO in the ration, without affecting DMI, apparent digestibility or the consumption of digestible nutrient fractions

Reduction of Enteric Methane Emissions in Heifers Fed Tropical Grass-Based Rations Supplemented with Palm Oil

Vegetable oils have been shown to reduce enteric methane (CH4) production by up to 20%. However, when the level of incorporation exceeds the threshold of 70 g/kg DM, dry matter intake (DMI) and nutrient digestibility may be reduced. The objective of this study was to determine the effects of the incorporation of three levels of palm oil (PO) on enteric CH4 emissions, rumen fermentation and apparent digestibility in heifers fed low-quality grass. Four rumen-cannulated heifers (Bos taurus × Bos indicus) were randomly assigned to four treatments: control (CON) and three increasing PO levels: 20, 40 and 60 g/kg in a 4 × 4 Latin square design with four periods of 22 days (14 days of adaptation to the ration), 5 days of feces and rumen fluid sampling (day 18, 4 h postprandial) and the last 3 days for measurements of CH4 in respiration chambers. With the exception of CP (p = 0.04), starch (p = 0.002) and EE (p p > 0.05). The apparent digestibility (AD) of nutrients was not affected by the inclusion of PO (p > 0.05), except for starch, which reduced its AD as the PO level was increased (p p = 0.001), on the other hand, the digestible energy intake was similar between treatments (p > 0.05). In situ ruminal digestion kinetics and the potential degradability remained unchanged (p > 0.05), however, the effective degradability decreased with the inclusion of PO in the rations (p p > 0.05). The ruminal concentration of propionic acid increased as the PO level increased, reaching its highest molar proportion with 60 g/kg PO (p p 4 production was lower in diets containing 20, 40 and 60 g/kg PO compared to the CON diet (p 4 per kg DMI and DOMI was greater (p m, energy lost as CH4, emission factor (EF) and kg CO2 eq/year were reduced as an effect of the inclusion of PO (p < 0.05). Based on the results obtained, it is concluded that the incorporation of PO in cattle rations has the potential to reduce enteric methane emissions by 4% for every 10 g/kg PO in the ration, without affecting DMI, apparent digestibility or the consumption of digestible nutrient fractions

Pahuatlán de Valle. Visión etnográfica y percepciñon de actores sociales hacia un estudio alimentario

Este trabajo de investigación fue realizado por alumnos de la licenciatura en Gastronomía de la Universidad del Claustro de Sor Juana, en el área de desarrollo de Investigación y Difusión de la Gastronomía . El proyecto se planeo para formarlos en las materias de Investigación de campo e Investigación documental; los alumnos aprenderían a estructurar su pensamiento para poder seguir rigurosamente metodología cualitativa, necesaria para el desarrollo de una investigación de calidad, desde la complejidad y la disciplina que esta actividad demanda. Se eligió el municipio Pahuatlán, Puebla porque conjunta la presencia de tres grupos étnicos: nahuas, otomíes y mestizos. Además de ser expulsor de mano de obra a Estados Unidos y presentar importantes índices de pobreza

Acción sustentable, gestión e innovación. Estudios sobre turismo y gastronomía

Este libro reúne a varios estudiosos de turismo y gastronomía de diferentes nacionalidades, universidades y/o instancias de educación e investigación, con el fin de reflexionar sobre las tendencias que se impulsan en estos campos del conocimiento, desde tres líneas de análisis: la acción, la gestión y la innovación Ante la exigencia respecto a que las actividades económicas y sociales que impulsan la actividad turística y gastronómica no dañen el ambiente, se promueve que éstas sean sustentables. Dichas exigencias no son nuevas, desde el 2000 a la fecha se incentivan, lo cual ha provocado transformaciones importantes que ameritan una revisión general. Así, este libro abre un espacio para la presentación de investigaciones relacionadas con el turismo y la gastronomía desde la sustentabilidad. El tema central y las tendencias del mismo evidencian la orientación que hemos querido darle al libro, puesto que ninguno de los temas es más importante que otro y el orden en el que aparecen obedece únicamente a cuestiones logísticas y didácticas. De esta manera, el libro se compone de tres apartados. El primero está dedicado a la gestión sustentable e integra cinco capítulos. El segundo apartado toca el tema de la innovación sustentable y está integrado por seis trabajos, a través de los cuales se busca generar la discusión y el debate sobre la innovación en diferentes contextos del turismo y la gastronomía. El tercer apartado del libro está dedicado a la acción sustentable y se integra por seis trabajos.UAEME

Risk of COVID-19 after natural infection or vaccinationResearch in context

Summary: Background: While vaccines have established utility against COVID-19, phase 3 efficacy studies have generally not comprehensively evaluated protection provided by previous infection or hybrid immunity (previous infection plus vaccination). Individual patient data from US government-supported harmonized vaccine trials provide an unprecedented sample population to address this issue. We characterized the protective efficacy of previous SARS-CoV-2 infection and hybrid immunity against COVID-19 early in the pandemic over three-to six-month follow-up and compared with vaccine-associated protection. Methods: In this post-hoc cross-protocol analysis of the Moderna, AstraZeneca, Janssen, and Novavax COVID-19 vaccine clinical trials, we allocated participants into four groups based on previous-infection status at enrolment and treatment: no previous infection/placebo; previous infection/placebo; no previous infection/vaccine; and previous infection/vaccine. The main outcome was RT-PCR-confirmed COVID-19 >7–15 days (per original protocols) after final study injection. We calculated crude and adjusted efficacy measures. Findings: Previous infection/placebo participants had a 92% decreased risk of future COVID-19 compared to no previous infection/placebo participants (overall hazard ratio [HR] ratio: 0.08; 95% CI: 0.05–0.13). Among single-dose Janssen participants, hybrid immunity conferred greater protection than vaccine alone (HR: 0.03; 95% CI: 0.01–0.10). Too few infections were observed to draw statistical inferences comparing hybrid immunity to vaccine alone for other trials. Vaccination, previous infection, and hybrid immunity all provided near-complete protection against severe disease. Interpretation: Previous infection, any hybrid immunity, and two-dose vaccination all provided substantial protection against symptomatic and severe COVID-19 through the early Delta period. Thus, as a surrogate for natural infection, vaccination remains the safest approach to protection. Funding: National Institutes of Health

Risk of COVID-19 after natural infection or vaccinationResearch in context

Background: While vaccines have established utility against COVID-19, phase 3 efficacy studies have generally not comprehensively evaluated protection provided by previous infection or hybrid immunity (previous infection plus vaccination). Individual patient data from US government-supported harmonized vaccine trials provide an unprecedented sample population to address this issue. We characterized the protective efficacy of previous SARS-CoV-2 infection and hybrid immunity against COVID-19 early in the pandemic over three-to six-month follow-up and compared with vaccine-associated protection. Methods: In this post-hoc cross-protocol analysis of the Moderna, AstraZeneca, Janssen, and Novavax COVID-19 vaccine clinical trials, we allocated participants into four groups based on previous-infection status at enrolment and treatment: no previous infection/placebo; previous infection/placebo; no previous infection/vaccine; and previous infection/vaccine. The main outcome was RT-PCR-confirmed COVID-19 >7–15 days (per original protocols) after final study injection. We calculated crude and adjusted efficacy measures. Findings: Previous infection/placebo participants had a 92% decreased risk of future COVID-19 compared to no previous infection/placebo participants (overall hazard ratio [HR] ratio: 0.08; 95% CI: 0.05–0.13). Among single-dose Janssen participants, hybrid immunity conferred greater protection than vaccine alone (HR: 0.03; 95% CI: 0.01–0.10). Too few infections were observed to draw statistical inferences comparing hybrid immunity to vaccine alone for other trials. Vaccination, previous infection, and hybrid immunity all provided near-complete protection against severe disease. Interpretation: Previous infection, any hybrid immunity, and two-dose vaccination all provided substantial protection against symptomatic and severe COVID-19 through the early Delta period. Thus, as a surrogate for natural infection, vaccination remains the safest approach to protection. Funding: National Institutes of Health