Paradigm: a bibliometric analysis of papers presented at the conferences of the POMS from 2000 to 2010

This study presents bibliometrics on Paradigm in papers presented at the Production and Operation Management Society (POMS) from 2000 to 2010, and establishes the profile of the authors and the theoretical relationships present in those papers’ content. The portal of the Production and Operation Management Society and the abstracts contained in each of the events of the period were used, seeking to highlight the concept of Paradigm and its approaches. As a result, the articles presented at the POMS from 2000 to 2010, at least three out of the four hundred papers had the concept in its title or abstract, besides being within the central arguments of these same items analyzed by this study

What Mathematical Models Are Accurate for Prescribing Aerobic Exercise in Women with Fibromyalgia?

Objectives: This article aims to verify the agreement between the standard method to determine the heart rate achieved in the ventilatory threshold 1 in the cardiopulmonary exercise testing (VT1) and the mathematical models with exercise intensities suggested by the literature in order to check the most precise for fibromyalgia (FM) patients. Methods: Seventeen women with FM were included in this study. The VT1 was used as the standard method to compare four mathematical models applied in the literature to calculate the exercise intensity in FM patients: the well-known “220 − age” at 76%, Tanaka predictive equation “208 − 0.7 × age” at 76%, the FM model HRMax “209 – 0.85 × age” at 76%, and Karvonen Formula at 60%. Bland–Altman analysis and correlation analyses were used to explore agreement and correlation between the standard method and the mathematical models. Results: Significant correlations between the heart rate at the VT1 and the four mathematical estimation models were observed. However, the Bland-Altman analysis only showed agreement between VT1 and “220 − age” (bias = −114.83 + 0.868 × x; 95% LOA = −114.83 + 0.868 × x + 1.96 × 7.46 to −114.83 + 0.868 × x − 1.96 × 7.46, where x is the average between the heart rate obtained in the CPET at VT1 and “220 − age”, in this case 129.15; p = 0.519) and “209 − 0.85 × age”(bias = −129.58 + 1.024 × x; 95% LOA = −129.58 + 1.024 × x + 1.96 × 6.619 to −129.58 + 1.024 × x − 1.96 × 6.619, where x is the average between the heart rate obtained in the CPET at VT1 and “209 − 0.85 × age”, in this case 127.30; p = 0.403). Conclusions: The well-known predictive equation “220 − age” and the FM model HRMax (“209 − 0.85 × age”) showed agreement with the standard method (VT1), revealing that it is a precise model to calculate the exercise intensity in sedentary FM patients. However, proportional bias has been detected in all the mathematical models, with a higher heart rate obtained in CPET than obtained in the mathematical model. The chronotropic incompetence observed in people with FM (inability to increase heart rate with increasing exercise intensities) could explain why methods that tend to underestimate the HRmax in the general population fit better in this population

Extended-Spectrum Beta-Lactamase-Producing Enterobacteriaceae in Fresh Produce

15 p.Fresh vegetables are an essential part of a healthy diet, but microbial contamination of fruits and vegetables is a serious concern to human health, not only for the presence of foodborne pathogens but because they can be a vehicle for the transmission of antibiotic-resistant bacteria. This work aimed to investigate the importance of fresh produce in the transmission of extended-spectrum β-lactamases (ESBL)-producing Enterobacteriaceae. A total of 174 samples of vegetables (117) and farm environment (57) were analysed to determine enterobacterial contamination and presence of ESBL-producing Enterobacteriaceae. Enterobacterial counts above the detection limit were found in 82.9% vegetable samples and 36.8% environmental samples. The average count was 4.2 log cfu/g or mL, with a maximum value of 6.2 log cfu/g in a parsley sample. Leafy vegetables showed statistically significant higher mean counts than other vegetables. A total of 15 ESBL-producing isolates were obtained from vegetables (14) and water (1) samples and were identified as Serratia fonticola (11) and Rahnella aquatilis (4). Five isolates of S. fonticola were considered multi-drug resistant. Even though their implication in human infections is rare, they can become an environmental reservoir of antibiotic-resistance genes that can be further disseminated along the food chainS

Solución de ecuaciones diferenciales ordinarias de segundo orden por el método de Splines Cúbicos, asistido con Matlab

El objetivo de la presente investigación fue solucionar ecuaciones diferenciales ordinarias de segundo orden por el método de Splines Cúbicos, asistido con Matlab. Específicamente hemos resuelto de manera detallada la solución analítica y numérica de ecuaciones diferenciales ordinarias lineales homogéneas y no homogéneas de segundo orden con coeficiente constantes a Problemas de Valores Iniciales. En las E.D.O. homogéneas se han resuelto de acuerdo al polinomio característico cuyas raíces pueden ser reales, de multiplicidad y compleja. Las E.D.O. no homogéneas se ha utilizado el método de variación de parámetros, la cual para ambas ecuaciones son resueltas por el método de Splines Cúbicos. Luego comparamos los resultados de tal manera que de forma numérica se aproxima a la solución real con un mínimo margen de error. Estos resultados son asistidos y comprobados mediante el software matemático Matlab de manera sencilla de resolver

La Importancia de los Sistemas de Control de Versiones en La Gestión de Liberación de Sistemas Web

En la actualidad el manejo y disponibilidad de los softwares son muy demandados, han demostrado grandes resultados frente a los sistemas tradicionales para las organizaciones, quienes buscan gestionar su versionamiento para mejorar la calidad de sus servicios. El presente artículo planteó como objetivo determinar el efecto que causan los sistemas de control de versiones en la gestión de liberación de los servicios web. Para lo cual el presente artículo realizo una revisión sistemática de la información comprendida entre los años 2018 y 2022 para focalizar su importancia. Obteniendo como resultados que las diferentes empresas ya alojan sus servicios en un repositorio de control de versiones como GitHub, BitBucket, GitLab, entre otros; ayudando a los sistemas a tener un mejor control de futuras versiones y liberación, e incluso de poder tener un respaldo de estas versiones que se van dejando atrás en todo el ciclo de vida de un proyecto

Role of fluorine in suppressing boron transient enhanced diffusion in preamorphized Si

We have explained the role of fluorine in the reduction of the self-interstitial population in a preamorphized Si layer under thermal treatment. For this purpose, we have employed a B spike layer grown by molecular-beam epitaxy as a marker for the self-interstitial local concentration. The amorphized samples were implanted with 731012, 731013, or 431014 F/cm2 at 100 keV, and afterwards recrystallized by solid phase epitaxy. Thermal anneals at 750 or 850 °C were performed in order to induce the release of self-interstitials from the end-of-range (EOR) defects and thus provoke the transient enhanced diffusion of B atoms. We have shown that the incorporation of F reduces the B enhanced diffusion in a controlled way, up to its complete suppression. It is seen that no direct interaction between B and F occurs, whereas the suppression of B enhanced diffusion is related to the F ability in reducing the excess of silicon self-interstitials emitted by the EOR source. These results are reported and discussed

A intervenção do enfermeiro de reabilitação na promoção da acessibilidade

Background: the rehabilitation nurses are decisive to the promotion of accessibility trough architectural barriers elimination, which promotes the reintegration of people with reduced mobility. Objectives: to understand nurses concernment about the elimination of architectural barriers. Methodology: a quantitative, descriptive, exploratory study using an accidental non-probabilistic snowball sampling method, composed of 56 nurses. For data collection, an ad hoc self-administered questionnaire was applied, using Google forms, in November 2016. Results: 60.7% of nurses don’t know whom to adress to eliminate barriers and 58.9% did not implement any intervention in that sense. Verified significant statistical differences that favor the rehabilitation nurses concerning their knowledge about: specific legislation about acessibility (p=0.000) and whom to adress to request the elimination of architectural barriers in the community (p=0.024). Conclusion: the accessibility and the elimination of architectural barriers should be a part of the daily pratice of nurses.Marco contextual: Los enfermeros de rehabilitación son decisivos en la promoción de espacios accesible mediante la eliminación de barreras arquitectónicas para la integración de las personas con movilidad reducida. Objetivo: Comprender si la eliminación de barreras arquitectónicas son una preocupación de los enfermeros  Metodología: estudio cuantitativo, descriptivo, exploratorio mediante un muestreo no probabilístico accidental en bola de nieve, con una muestra de 56 enfermeros. Se aplicó un  cuestionario ad hoc de auto-llenado con recurso al formulario GOOGLE, en noviembre de 2016.  Resultados: 60,7% de enfermeros no saben a quién se deben dirigir para eliminar barreras arquitectónicas, el 58,9% no realiza ningún tipo de intervención en este sentido. Se observa diferencias significativas a favor de enfermeros de rehabilitación que tienen mayor conocimiento sobre: legislación específica para la accesibilidad (p=0,000) y a quién deben de dirigir la solicitud de eliminación de barreras arquitectónicas en la comunidad (p=0,024). Conclusión:  La accesibilidad e la eliminación de barreras arquitectónicas deben ser una parte de la práctica diaria de los enfermeros.Enquadramento: os enfermeiros de reabilitação são decisivos na promoção de ambientes acessíveis pela eliminação de barreiras arquitetónicas para a reintegração das pessoas com mobilidade condicionada. Objetivos: Compreender se a eliminação de barreiras arquitetónicas são uma preocupação dos enfermeiros. Metodologia: estudo quantitativo, descritivo, exploratório. Técnica de amostragem não probabilística acidental em bola de neve, constituída por 56 enfermeiros. A colheita de dados efetuou-se através de um questionário ad hoc de autopreenchimento recorrendo ao formulário GOOGLE, em Novembro de 2016. Resultados: 60,7% dos enfermeiros não sabe a quem se dirigir para eliminar barreiras arquitetónicas e 58,9% não desenvolve nenhum tipo de intervenção nesse sentido. Verificamos diferenças significativas favoráveis aos enfermeiros de reabilitação em relação a deterem mais conhecimento sobre: legislação específica para a acessibilidade (p=0,000) e, a quem se dirigir para solicitar a eliminação de barreiras arquitetónicas na comunidade (p=0,024). Conclusão: a acessibilidade e a eliminação de barreiras arquitetónicas devem fazer parte da prática diária dos enfermeiros