Lean services aplicado en los procesos administrativos de la coordinación de proyecto social universitario y práctica profesional de la carrera de Ingeniería Industrial de la Pontificia Universidad Javeriana

Ingeniero (a) IndustrialPregrad

Bamboo hybrids can bolster UK timber supplies

A relatively common material is not being embraced fully for building supplies. Interest in bamboo is growing, through research and media campaigning about the material’s environmental benefits, properties and its ability to replace wood, steel and carbon-fibre. But bamboo is not commonly used in high-performance applications or permanent structures, and its potential in construction remains untapped. Academic and industrial research carried out in the UK aimed to address the challenges associated with using bamboo in durable, safe and cost-efficient structures. Further combining the grass with UK-grown wood could maximise use of this material and make economic sense for the domestic forest secto

Formación ética y el reto en la educación del contador público

La ética profesional, es uno de los pilares más importantes en la formación del contador público, este basándose en principios de transparencia y honestidad, logra que la práctica de esta profesión llegue a estar en los más altos estándares a nivel mundial, así como lo intenta lograr la IESBA, por medio de las Normas Internacionales de Ética para Contadores. Sin embargo, es importante destacar y acatar dichos principios desde el inicio de su formación como profesionales de la contaduría, ya que es en los primeros pasos cuando se forjan bases fuertes que obedezcan a comportamientos éticos. Además, pensando esto a un futuro, sería posible reducir los casos de fraudes financieros, no solo por parte del contador, si no hacer de este también un consejero y que sea capaz de reportar y acudir a los procedimientos adecuados dentro de sus compañías con tal de reducir al máximo este tipo de actos y también logrando enaltecer los estándares e imagen del propio Contador Público en todo el mundo.Universidad Libre Seccional Socorro -- Facultad de ciencias económicas, administrativas y contables -- Especialización en Gerencia TributariaProfessional ethics, is one of the most important pillars in the formation of the public accountant, based on principles of transparency and honesty, makes the practice of this profession reaches the highest standards worldwide, as well as trying achieve the IESBA, through the International Ethics Standards for Accountants. However, it is important to highlight and abide by these principles from the beginning of their training as accounting professionals, as it is in the first steps when strong foundations are formed that obey ethical behavior. In addition, thinking this to a future, it would be possible to reduce the cases of financial fraud, not only by the accountant, but also to make a counselor and be able to report and go to the proper procedures within their companies with such to reduce to the maximum this type of acts and also achieving to raise the standards and image of the Public Accountant in the whole world

Limeboo: Lime as a Replacement for Cement in Wall-Framing Systems with Bamboo-Guadua (Bahareque Encementado)

Traditional construction systems with the bamboo species Guadua angustifolia Kunth (Guadua) are standardized under the Colombian code for seismic-resistant buildings '1'. These systems are regarded as highly environmentally friendly due to their intensive use of Guadua in the supporting structure and walls. In particular, the plastered cane building system or 'bahareque encementado', which provides a low-cost and low-technology alternative for two-storey dwellings, commonly uses round Guadua for the frame and riven Guadua boards (esterilla) for covering the frame. However, this wall-framing system relies heavily on cement renders for providing combined structural action to resist lateral loads, protecting the material against weathering and ensuring a flat surface for construction finishes. Thick cement renders contribute greatly to the wall mass and together with the foundations result on the highest negative environmental impact in traditional wallframing construction with Guadua. Therefore, the reduction of the use of cement or its complete replacement for alternative binders in the wall-framing 'bahareque' system is a key point for environmental improvement. Widely available materials such as lime, which have less energy intensive production-processes present an alternative to cement. Moreover, lime offers improved breathability within the building and behaves more elastically than cement. This paper explores the potential use of lime as a replacement for cement mortars in 'bahareque' systems and analyses Guadua's anatomical and chemical features when mixed with lime. The paper describes a 'cold process' in which no high temperatures are involved for the improvement of the bonding between lime and bamboo

Effect of the elicitation with magnetic field of corn seeds on the development and nutrition of sprouts

Objective: To evaluate the effect of exposing corn seeds to a 100 mT magnetic field (MF) on their sprout development. Design/methodology/approach: A completely randomized design was used, with five treatments (0, 10, 15, 30, and 60 minutes of MF exposure) with three repetitions (72 experimental units). From the germination process, the gibberellic acid concentration (GA3) and α-amylase activity were determined, morphometric and biochemical parameters of the foliar tissue from the sprouts were measured, such as total phenols, flavonoids, and catalase (CAT), peroxidase (POX) and phenylalanium ammonium lyase (PAL) activities. Finally, some nutritional quality parameters of the sprouts were quantified, such as protein and ash content. Results: The results showed that the treatment of corn seeds with a MF had a favorable effect on the germination process increasing the GA3 concentration. Also, improvement in the development and quality of the sprouts, by increasing the growth of the shoot, root length, concentration of phenolic compounds and ash content in corn sprouts was found. Limitations on study/implications: escalate elicitation to the field level. Findings/conclusions: The elicitation of corn seeds with a magnetic field generates positive changes that transcend the corn sprouts

Comparison of the structure and flexural properties of Moso, Guadua and Tre Gai bamboo

Bamboo is an underutilized resource widely available in countries with rapidly developing economies. Structural bamboo products, analogous to wood products, allow flexibility in the shape and dimensions of bamboo structural members. Here, the ultrastructure, microstructure, cell wall properties and flexural properties of three species of bamboo (Moso, Guadua and Tre Gai) are compared. At a given density, the axial modulus of elasticity of Guadua is higher than that of Moso or Tre Gai, which are similar; ultrastructural results suggest that Guadua has a higher solid cell wall stiffness. At a given density, their moduli of rupture are similar.National Science Foundation (U.S.) (OISE-1258574

Thermo-hydro-mechanically modified cross-laminated Guadua-bamboo panels

Guadua angustifolia Kunth (Guadua) is a bamboo species native to South and Central America that has been widely used for structural applications in small and large-scale buildings, bridges and temporary structures. Currently, its structural use is regulated within seismic resistant building codes in countries such as Peru and Colombia. Nevertheless, Guadua remains a material for vernacular construction associated with high levels of manual labour and structural unpredictability. Guadua buildings are limited to two storeys due to the overall flexibility of the slender and hollow culms and its connection systems. Its axial specific stiffness is comparable to that of steel and hardwoods, but unlike wood, Guadua’s hollow structure and lack of ray cells render it prone to buckling along the grain and to transverse crushing. As a result, Guadua’s mainstream use in construction and transformation into standard sizes or engineered Guadua products is scarce. Therefore, this work focussed on the development of standardised flat industrial structural products from Guadua devising replicable manufacturing technologies and engineering methods to measure and predict their mechanical behaviour. Cross-laminated Guadua panels were developed using thermohydro-mechanically modified and laminated flat Guadua strips glued with a high performance resin. Guadua was subjected to thermo-hydro-mechanical (THM) treatments that modified its microstructure and mechanical properties. THM treatment was applied to Guadua with the aim of tackling the difficulties in the fabrication of standardised construction materials and to gain a uniform fibre content profile that facilitated prediction of mechanical properties for structural design. Densified homogenous flat Guadua strips (FGS) were obtained. Elastic properties of FGS were determined in tension, compression and shear using small-clear specimens. These properties were used to predict the structural behaviour of G-XLam panels comprised of three and five layers (G-XLam3 and G-XLam5) by numerical methods. The panels were assumed as multi-layered systems composed of contiguous lamellas with orthotropic axes orientated at 0º and 90º. A finite element (FE) model was developed, and successfully simulated the response of G-XLam3 & 5 panels virtually loaded with the same boundary conditions as the following experimental tests on full-scale panels. G-XLam3 and G-XLam5 were manufactured and their mechanical properties evaluated by testing large specimens in compression, shear and bending. Results from numerical, FE predictions and mechanical testing demonstrated comparable results. Finally, design and manufacturing aspects of the G-XLam panels were discussed and examples of their architectural and structural use in construction applications such as mid-rise buildings, grid shells and vaults are presented. Overall, this research studies THM treatments applied to Guadua in order to produce standardised engineered Guadua products (EGP), and provides guidelines for manufacturing, testing, and for the structural analysis and design with G-XLam panels. These factors are of key importance for the use of Guadua as a mainstream material in construction