Conocimientos y actitudes frente a la vacuna contra el COVID-19: Knowledge and attitudes towards the covid-19 vaccine

Objective:The objective of this research was to determine the relationship between the level of knowledge and attitudes towards the COVID-19 vaccine in the inhabitants of the province of Trujillo in the year 2021. Materials and methods:The type of study was applied, non experimental desing, with a quantitative approach, cross-sectional, and correlational level; a questionnaire for knowledge and attitudes was administered to a total of 500 adults in the province of Trujillo.   Results: The results show that 88% of the population has a good level of knowledge about the vaccine, and 91% of them have an adequate attitude to be vaccinated.   Conclusions: In this way, it is concluded that there is a significant relationship between the level of knowledge and attitudes towards the vaccine against COVID-19 (p value<0.05).  The level of knowledge is a protective factor (OR: 0.43; CI: 0.2318-0.8053) for an adequate attitude to be vaccinated.Objetivo: Determinar la relación entre el nivel de conocimientos y las actitudes frente a la vacuna contra el COVID 19 en los pobladores de la provincia de Trujillo en el año 2021. Métodos: El tipo de estudio fue aplicado, diseño no experimental, de enfoque cuantitativo, de corte transversal y nivel correlacional, se aplicó un cuestionario para conocimientos y actitudes a un total de 500 personas mayores de edad distribuidos en la provincia de Trujillo. Resultados: Los resultados demuestran que el 88% de la población tiene un buen nivel de conocimientos sobre la vacuna, así mismo el 91% de los mismos tiene una actitud adecuada para ser vacunados. Conclusiones: De esa manera se concluye que existe relación signicativa entre el nivel de conocimientos y las actitudes frente a la vacuna contra la COVID-19 (valor de p <0,05). El nivel de conocimientos constituye un factor de protección (OR: 0,43; IC: 0,23-0,81) para una adecuada actitud para ser vacunado

Simplified Self-Consistent Theory of Colloid Dynamics

One of the main elements of the self-consistent generalized Langevin equation (SCGLE) theory of colloid dynamics [Phys. Rev. E {\bf 62}, 3382 (2000); ibid {\bf 72}, 031107 (2005)] is the introduction of exact short-time moment conditions in its formulation. The need to previously calculate these exact short-time properties constitutes a practical barrier for its application. In this note we report that a simplified version of this theory, in which this short-time information is eliminated, leads to the same results in the intermediate and long-time regimes. Deviations are only observed at short times, and are not qualitatively or quantitatively important. This is illustrated by comparing the two versions of the theory for representative model systems.Comment: 1 text archive, 3 figure

Some inequalities for the Tutte polynomial

We prove that the Tutte polynomial of a coloopless paving matroid is convex along the portions of the line segments x+y=p lying in the positive quadrant. Every coloopless paving matroids is in the class of matroids which contain two disjoint bases or whose ground set is the union of two bases of M*. For this latter class we give a proof that T_M(a,a) <= max {T_M(2a,0), T_M(0,2a)} for a >= 2. We conjecture that T_M(1,1) <= max {T_M(2,0), T_M(0,2)} for the same class of matroids. We also prove this conjecture for some families of graphs and matroids.Comment: 17 page

Vegetative growth response of beets and lettuce to stored human urine

ArticleIn this work, we present the experimental results of the effect of stored human urine (SHU) on the growth of beets (Beta vulgaris L) and lettuce (Lactuca sativaL). We apply different amounts of SHU according to the recommended dose of nitrogen, considering soil from farmland and vermiculite as substrates. The last allows us to determine with high precision the isolated effect of SHU over the vegetative development of beet plants, without considering other nutrients present in common soils. Experimental results demonstrate that the application of SHU has no significant effects on lettuce vegetative growth under our soil conditions. In contrast, SHU can be used successfully as a fertilizer of beets. The optimum dose was found at 120kgN ha-1and resulted in average dry weight of 125g. However, if the dose exceeds the optimum levels, the growth of the plant is inhibited. Beets fertilized with SHU does not pose any hygienic risk for human consumption. Our findings represent a promising alternative to propose expanding the use of SHU as fertilizer in medium-sized greenhouses and to provide benefits to families in rural areas, with little or no available water supplies

Análisis y desarrollo de la estructura administrativa y corporativa de Ángeles Cosmetique

ITESO, A.C

Recursos turísticos para promover el turismo en la provincia de Sullana-Perú

Los recursos turísticos son fuente de inspiración y desarrollo de un espacio geográfico, puesto que, pueden posicionar a una cultura ante la visión del mundo. El Perú cuenta con una variedad de recursos que tienen potencial y acogida por los visitantes nacionales y extranjeros. La presente investigación tuvo como objetivo analizar los recursos turísticos de la provincia de Sullana para promover el turismo. La metodología se trabajó bajo un enfoque cuantitativo, de diseño no experimental, de tipo descriptivo y una muestra no probabilística por conveniencia, así mismo, se analizó los recursos turísticos registrados en Sigmincetur. Entre los resultados encontrados se evidenció que existen recursos turísticos que tienen concurrencia, que no cuentan con la infraestructura necesaria para acoger a los visitantes, así mismo, que el registro de recursos debe ser actualizado para seleccionar, categorizar e incorporar otros recursos con potencial turístico. Se concluyó que la provincia es una zona que tiene recursos con alto potencial para desarrollar el turismo; sin embargo, debe enfocarse en difundirlos mediante proyectos que integren a los actores sociales

FoodLab: estandarización de proceso y desarrollo de nuevos productos

En este PAP se realizó un trabajo de mejora de procesos y desarrollo de productos dentro de FOODLAB, una empresa dedicada a la elaboración de productos de gomitas. Después de una primera evaluación y juntas con la persona encargada de la empresa, se determinó que se realizarían procedimientos de estandarización de procesos y de desarrollo de nuevos productos. Para el desarrollo de nuevos productos, se trabajó con las Yummy Fruits, realizando diferentes experimentaciones en donde se variaban los agentes gelantes y edulcorantes, así como sus concentraciones, hasta que se obtuvo un producto con características de textura y sabor agradables. Posteriormente se realizaron investigaciones y cotizaciones para ingredientes funcionales y empaques que podrían ser utilizados para el producto final. En cuanto a la estandarización del proceso de producción de Yummy Shots se llevó a cabo la toma de datos de 9 corridas de producción, variando condiciones de temperaturas, presión y °Brix, de las cuales se analizaron los distintos datos obtenidos en cada una de ellas y se concentró la información en una tabla donde se aprecian de mejor manera las distintas variaciones. Además, se actualizó la ficha técnica del producto, obteniendo resultados más completos de análisis fisicoquímicos, microbiológicos y bromatológicos de los Yummy Shots, de los cuales existen 2 tipos: sin chile y con chile.ITESO, A.C

Phenotypic and genotypic characteristics of Escherichia coli strains isolated during a longitudinal follow-up study of chronic urinary tract infections

Worldwide, Urinary Tract Infections (UTIs) are an important health problem with many cases reported annually, women being the most affected. UTIs are relevant because they can become a recurrent condition, associated with different factors that contribute to the chronicity of the disease (cUTI). cUTI can be classified as persistent (peUTI) when the causative agent is the same each time the infection occurs or as reinfection (reUTI) when the associated microorganism is different. The purpose of this work was to characterize Escherichia coli isolates obtained in two prospective studies of patients with cUTI, to define which of them corresponded to peUTI and which to reUTI. A total of 394 isolates of E. coli were analyzed by agglutination with specific sera, antimicrobial susceptibility by diffusion disc test, and the phylogroups and presence of genes associated with virulence by PCR assays. Additionally, in some characterized strains adherence, invasiveness, and biofilm formation were analyzed by in vitro assays. The results showed that the peUTI strains belonged mainly to the classical UPEC serogroups (O25, O75, O6), were included in the B2 phylogroup, carried a great number of virulence genes, and were adherent, invasive, and biofilm-forming. Meanwhile, reUTI strains showed great diversity of serogroups, belonged mainly in the A phylogroup, and carried fewer virulence genes. Both peUTI and reUTI strains showed extensively drug-resistant (XDR) and multidrug-resistant (MDR) profiles in the antimicrobial susceptibility test. In conclusion, it appears that peUTIs are caused principally by classical UPEC strains, while reUTIs are caused by strains that appear to be a part of the common E. coli intestinal biota. Moreover, although both peUTI and reUTI strains presented different serotypes and phylogroups, their antimicrobial resistance profile (XDR and MDR) was similar, confirming the importance of regulating prophylactic treatments and seeking alternatives for the treatment and control of cUTI. Finally, it was possible to establish the features of the E. coli strains responsible for peUTI and reUTI which could be helpful to develop a fast diagnostic methodology