Software para el manejo de fertilizantes orgánicos en la comunidad de San Bartolo Acolman

Se plantea el desarrollo de un sistema de software con el objetivo de calcular mediante fórmulas, cantidades necesarias de fertilizante orgánico que requiere un cultivo para favorecer su crecimiento y calidad. El sistema presenta una serie de interfaces gráficas que explican el proceso de fertilización, y permiten al agricultor ingresar datos de su cultivo para obtener como resultado la cantidad y tipo de fertilizante que debe aplicar. Se propone el uso de fertilizantes orgánicos para la elaboración de Compost dado que se tiene beneficios en la mejora y enmienda de la degradación del suelo, se tienen ahorros económicos ya que se utilizan elementos comunes de desecho orgánico y se contribuye a la higienización de la comunidad

Production of cellulose-based superabsorbent polymers for soil water retention

Superabsorbent polymers (SAPs) have attracted tremendous attention, with researchers noting that their high water absorption capacity (AC) is valuable for various applications, especially in agricultural contexts. Two types of materials can be used to produce SAPs: fossil-based (which are harmful to the environment) and bio-based (which are significantly more environmentally friendly, given their biodegradability and minimal toxic side effects). Although bio-based SAPs (Bio-SAPs) are preferable due to their environmental merits, their preparation tends to be time consuming and labour intensive, and their AC is still far below expectations. To address these problems, a novel, eco-friendly, cellulose-based superabsorbent polymer (Cellulo-SAP) was developed in this study through facile preparation via free radical synthesis using esterified pure cellulose. First, pure cellulose was esterified with maleic anhydride to evaluate the effects of the catalyst, solvent, and cellulose–maleic anhydride molar ratio. Second, an approach for graft copolymerization of esterified pure cellulose with acrylic acid was developed; this involved free radical synthesis using polyethylene glycol diacrylate as the crosslinker, resulting in the production of Cellulo-SAP. Third, the absorbency, thermal/pH stability, reusability, and biodegradability of Cellulo-SAP were evaluated. This new polymer demonstrated reusability as a water reservoir, in addition to high thermal and pH stability. More importantly, Cellulo-SAP achieved an AC of 475 g/g and exhibited superior biodegradability compared to a commercial, fossil-based SAP (Sigma-Aldrich sodium polyacrylate). These results suggest that Cellulo-SAP can be used in agriculture as an effective alternative to fossil-based SAPs. Finally, crude cellulose was obtained via organosolv fractionation with a mixture of acetic acid, formic acid, and water added to the biomass from cornstalk residues. The crude cellulose consisted of 13.87% lignin, 27.58% hemicellulose, and 57.46% a-cellulose, and it had a 0.41 degree of esterification after fractionation. This crude cellulose was used as a raw material to obtain a Bio-SAP (CrudeCellulo-SAP) via the methodology developed for graft copolymerization and crosslinking of Cellulo-SAP. CrudeCellulo-SAP demonstrated an AC of 369 g/g

Papel del deporte en el proceso del postconflicto en los jóvenes del club de microfútbol creafam del municipio de Granada

La presente investigación, está enfocada a conocer qué papel juega el deporte en el proceso del posconflicto en los jóvenes que participan en el club de microfútbol CREAFAM del Municipio de Granada; es por esta razón que se debe aprovechar el poder de convocatoria que el deporte tiene entre los pueblos, para generar espacios de tranquilidad donde se simbolice el anhelo de consolidación de las regiones, y de esta manera desarrollar iniciativas que permitan una paz sostenible.This research is focused on knowing what role sports play in the post-conflict process in young people who participate in the CREAFAM microfootball club of the Municipality of Granada; It is for this reason that the power of convocation that sport has among the peoples should be taken advantage of, to generate spaces of tranquility where the desire to consolidate the regions is symbolized, and in this way develop initiatives that allow sustainable peace

Plan de intervención para la salud e higiene oral de los niños de la institución educativa Félix de Bedout Moreno.

Plan de acción que identifica el estado general de la higiene oral de los niños de 7 a 9 años de los grados segundos de la Institución Educativa Félix de Bedout Moreno del municipio de Medellín con el fin de establecer programas de enseñanza de hábitos que promuevan el mejoramiento de la salud oral de los estudiantes

Plan de intervención para la salud e higiene oral de los niños de la institución educativa Félix de Bedout Moreno.

Plan de acción que identifica el estado general de la higiene oral de los niños de 7 a 9 años de los grados segundos de la Institución Educativa Félix de Bedout Moreno del municipio de Medellín con el fin de establecer programas de enseñanza de hábitos que promuevan el mejoramiento de la salud oral de los estudiantes

Saraz method adjustment for the quantification of ammonia emissions generated in opened or hybrid animal production facilities

The objective of this study was to evaluate the efficiency of the Saraz method in order to quantify ammonia emissions generated in opened or hybrid animal production facilities, and to determine an equation for the adjustment method. To do this, we developed beacon equipment, with input and output gas sectors, hoods and absorbent porous material. After the collection, the amount of ammonia captured in the environment was determined in the laboratory. Different ammonia concentrations were evaluated in addition to the different speeds of the exhaust air. Considering the results, it can be concluded that for the situations analyzed the Saraz method is efficient, but as with other methods, with an increase of air velocity and concentration, its efficiency decreases. An equation for the adjustment of the Saraz method was generated to determine the concentration and the rate of ammonia emissions inside animal facilities

A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302

We present a 3D photoionization model of the PN NGC 6302, one of the most complex objects of its kind. Our Mocassin model is composed of an extremely dense circumstellar disk and a large pair of diffuse bipolar lobes, a combination necessary to reproduce the observed spectrum. The masses of these components gives a total nebular mass of 4.7Mo. Discrepancies between our model fit and the observations are attributed to complex density inhomogeneities in the nebula. The potential to resolve such discrepancies with more complex models is confirmed by a range of models introducing small-scale structures. Compared to solar abundances He is enhanced by 50%, C is slightly subsolar, O is solar, and N is enhanced by a factor of 6. These imply a significant 3rd dredge-up coupled with hot-bottom burning CN-cycle conversion of dredged-up C to N. The central star is partly obscured by the edge-on circumstellar disk and its properties are not well constrained. Emission from a number of high-ionization `coronal' lines provides constraints on the form of the high-energy ionizing flux. Using a solar abundance stellar atmosphere we are unable to fit all of the observed line fluxes, but a substantially better fit was obtained using a 220,000K H-deficient stellar atmosphere with L*=14,300 Lo. The H-deficient nature of the central star suggests it has undergone a late thermal pulse, and fits to evolutionary tracks imply a central star mass of 0.73-0.82Mo. Timescales for these tracks suggest the object left the top of the AGB ~2100 years ago, in agreement with studies of the recent mass-loss event that formed the bipolar lobes. Based on the modelled nebular and central star masses we estimate the initial mass of the central star to be 5.5Mo, in agreement with that derived from evolutionary tracks. (Abstract truncated)Comment: 23 pages, 8 figures, 10 tables. Accepted for publication in MNRA

Brain bases of morphological processing in Chineseâ English bilingual children

Can bilingual exposure impact children’s neural circuitry for learning to read? To answer this question, we investigated the brain bases of morphological awareness, one of the key spoken language abilities for learning to read in English and Chinese. Bilingual Chineseâ English and monolingual English children (N = 22, ages 7â 12) completed morphological tasks that best characterize each of their languages: compound morphology in Chinese (e.g. basket + ball = basketball) and derivational morphology in English (e.g. re + do = redo). In contrast to monolinguals, bilinguals showed greater activation in the left middle temporal region, suggesting that bilingual exposure to Chinese impacts the functionality of brain regions supporting semantic abilities. Similar to monolinguals, bilinguals showed greater activation in the left inferior frontal region [BA 45] in English than Chinese, suggesting that young bilinguals form languageâ specific neural representations. The findings offer new insights to inform bilingual and crossâ linguistic models of language and literacy acquisition.The study investigated the impact of bilingual exposure on children’s language and reading abilities. During auditory morphological awareness tasks, young Chineseâ English bilinguals showed monolingualâ like competence as well as languageâ specific patterns of brain activation in left inferior frontal gyrus (IFG). This activation was greater for English than for Chinese in left IFG BA 45, but similar across languages in left IFG BA 47. Relative to English monolinguals, the bilinguals showed greater activation in left MTG region and this activation was significantly correlated with bilingualsâ English literacy. The findings suggest that bilingual exposure to a language with rich lexical morphology, such as Chinese, impacts the functionality of bilingualsâ left temporal regions typically associated with lexicoâ semantic processing and the ability to link word meanings to their orthographic forms.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138272/1/desc12449_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/138272/2/desc12449.pd

The Relevance of Fatalism in the Study of Latinas’ Cancer Screening Behavior: A Systematic Review of the Literature

# The Author(s) 2010. This article is published with open access at Springerlink.com Background Fatalism has been identified as a dominant belief among Latinos and is believed to act as a barrier to cancer prevention. However, controversy exists over the utility of the construct in explaining health disparities experienced by disadvantaged populations above the influence of structural barriers such as low socioeconomic status (SES) and limited access to health care. Purpose This paper reviews the empirical research on fatalism and Latinas ’ participation in cancer screening in an attempt to determine whether fatalism predicts participation in cancer screening after accounting for structural barriers