Differentiation of blood and environmental interfering stains on substrates by Chemometrics-Assisted ATR FTIR spectroscopy

Blood is the most common and relevant bodily fluid that can be found in crime scenes. It is critical to correctly identify it, and to be able to differentiate it from other substances that may also appear at the crime scene. In this work, several stains of blood, chocolate, ketchup, and tomato sauce on five different substrates (plywood, metal, gauze, denim, and glass) were analysed by ATR FTIR spectroscopy assisted with orthogonal partial least square discriminant analysis (OPLS-DA) models. It was possible to differentiate blood from the environmental interfering substances independently of the substrate they were on, and to differentiate bloodstains according to the substrate they were deposited on. These results represent a proof-of-concept that open new horizons to differentiate bloodstains from other interfering substances on common substrates present in crime scenes

La perspectiva Do It Yourself (DIY) en la enseñanza universitaria Dar cuenta de las competencias que se aprenden mediante Objetos Visuales Digitales.

En el presente artículo se reflexiona en torno a la experiencia que supuso indagar las posibilidades de la filosofía Do It Yourself (DIY) (hazlo tu mismo) en la docencia universitaria en diversos grados de las Facultades de Bellas Artes y Educación. A través de las argumentaciones que los estudiantes desplegaron en dos grupos de discusión, se exploró los significados de aprender a través del DIY, valorando, por un lado, sus tránsitos por las asignaturas, y por otro, tomando conciencia de todo aquello que les aportó realizar 'ellos mismos' Objetos Visuales Digitales (OVD) como colofón reflexivo de los cursos. El texto recoge miradas en torno a las competencias creativa, digital, colaborativa, comunicativa y autorreflexiva desarrolladas durante esta experiencia de enseñanza y aprendizaj

Diseño de un sistema de costos para la empresa comercializadora Aldus Ltda

Los cambios administrativos que se han presentado en la gestión de la compañía “COMERCIALIZADORA ALDUS LTDA” no siempre tuvieron un óptimo control de presupuestos para las áreas de producción y ventas; ni de los costos directamente asociados a estas. Por lo anterior, surge la necesidad de diseñar un sistema que permita identificar con claridad cuáles son los costos directos e indirectos asociados a los procesos, su punto de equilibrio y demás información para la correcta toma de decisiones. Con el objetivo de identificar cual sería el mejor sistema de costos para la empresa, se realizaron una serie de investigaciones sobre los diferentes modelos de costeo existentes. Se realizaron estudios de métodos y tiempos de todas las actividades relacionadas con los procesos, se analizaron los espacios o áreas locativas de la empresa asignados para la transformación y el bodegaje y se validó la metodología de distribución y demás elementos que aportan valor al producto final. El estudio fue de tipo descriptivo cualitativo y su método ayudo a comprender notoriamente los procesos mediante la identificación, formalización y análisis de riesgos. Luego de los estudios se elaboró una hoja de costos por producto; se dividió la empresa en tres procesos diferentes para hacer así un montaje de costos más transparente y claro, que no recargara costos a un producto más que a otros. También se consolidó toda la información en bases más sólidas para la asociación de los costos de cada uno de los productos permitiendo mejores resultados para la compañía a partir de información real.The administrative changes that have been presented in the administration of the company "COMERCIALIZADORA ALDUS LTDA” didn't always have a good control of budgets for the production areas and sales; neither of the costs directly associated to these. For the above-mentioned, the necessity arises of designing a system that allows identifying with clarity all the direct and indirect costs associated to the processes; its balance point and other information for the correct taking of decisions. With the objective to identify what would be the best system of costs for the company, a series of investigations on the different models of finance costs existent were taken. Some studies of methods and times of all the activities related with the processes were taken too, the spaces or local areas of the company were analyzed assigned for the transformation and the storage and it was validated the distribution methodology and other elements that contribute value to the final product. The study was of qualitative descriptive type, this method helps to understand the processes flagrantly, by means of the identification, formalization and analysis of risks. After the studies a document of costs was elaborated by product, the company was divided in three processes to make a more transparent and clearer system of costs and this way not to recharge costs to a product more than to other and were consolidated all the information in more solid bases for the association of the costs for each one of the products allowing better results for the company starting from real information

14 > 14. 5ª Bolsa de compra 2014

ISBN: 978-84-9747-872-4 Depósito Legal: MA-1609-2014 https://www.umaeditorial.uma.es/libro/14-14_1928/La muestra está conformada por las obras seleccionadas en la V Bolsa de Compra de la Facultad de Bellas Artes de Málaga. Pintura, dibujo, fotografía y escultura conviven en esta exposición con objetos encontrados: plásticos, cotidianos, mecánicos y/o electrónicos; con video creación y video proyección; con instalaciones. Y también con artes aplicadas o con obras de autores que recurren a la artesanía y a la plástica como lenguaje: bordados, terciopelos, diseño gráfico? máxima expresión, riqueza y apertura hacia un arte que debe llegar a todos los ciudadanos.Vicerrectorado de Investigación y Transferencia Vicerrectorado de Extensión Universitaria Universidad de Málag

Fair coexistence of scheduled and random access wireless networks: unlicensed LTE/WiFi

We study the fair coexistence of scheduled and random access transmitters sharing the same frequency channel. Interest in coexistence is topical due to the need for emerging unlicensed LTE technologies to coexist fairly withWiFi. However, this interest is not confined to LTE/WiFi as coexistence is likely to become increasingly commonplace in IoT networks and beyond 5G. In this paper, we show that mixing scheduled and random access incurs an inherent throughput/delay cost and the cost of heterogeneity. We derive the joint proportional fair rate allocation, which casts useful light on current LTE/WiFi discussions. We present experimental results on inter-technology detection and consider the impact of imperfect carrier sensing.This work was supported in part by the Science Foundation Ireland under Grant 11/PI/1177 and Grant 13/RC/207, in part by the European Commission in the framework of the H2020-ICT-2014-2 Project Flex5Gware under Grant 671563, and in part by the Spanish Ministry of Economy and the FEDER regional development fund through SINERGIA Project under Grant TEC2015-71303-R

Solving the mixed model sequencing problem with workload minimization with product mix preservation

This work is supported by the Spanish Ministerio de Educación y Ciencia under Project DPI2010-16759 (PROTHIUS-III) including EDRF fundings.Postprint (published version

Source determination of human and animal oral fluid stains on porous substrates by chemometrics-assisted ATR FTIR spectroscopy: A preliminary study

Oral fluids are common evidence that can be found as stains on a variety of substrates at crime scenes. The porosity of the substrate may influence their collection and analysis. Moreover, companion animals, such as dogs, may appear in many scenarios or even be involved in a crime. Determining the source (identification and classification) of human and canine oral fluid stains on different substrates found at crime scene is important prior to DNA extraction to diminish laboratory cost and time efforts. In the present work, the potential of attenuated total reflection Fourier transform infrared spectroscopy (ATR FTIR) was explored to study how several types of porous substrates influence in the source determination of human and animal (canine) oral fluid stains. Results showed that the main bands of human or canine oral fluid stains were visible among the characteristic infrared bands of the porous substrates. This allowed the identification of human or animal (canine) oral fluid stains origin in the three types of papers and six fabrics porous substrates studied. Then, the application of Orthogonal Partial Least Square-Discriminant Analysis (OPLS-DA) models to the obtained infrared spectra, allowed the classification of human and canine oral fluid stains independently of the substrate they were deposited on. This approach could be developed for real forensic investigations to distinguish the source (identification and classification) of oral fluid stains as human or animal

Game Analytics Evidence-Based Evaluation of a Learning Game for Intellectual Disabled Users.

Learning games are becoming popular among teachers as educational tools. However, despite all the game development quality processes (e.g., beta testing), there is no total assurance about the game design appropriateness to the students' cognitive skills until the games are used in the classroom. Furthermore, games designed speci cally for Intellectual Disabled (ID) users are even harder to evaluate because of the communication issues that this type of players have. ID users' feedback about their learning experience is complex to obtain and not always fully reliable. To address this problem, we use an evidence-based approach for evaluating the game design of Downtown, A Subway Adventure, a game created to improve independent living in users with ID. In this paper we exemplify the whole process of applying Game Analytics techniques to gather actual users' gameplay interaction data in real settings for evaluating the design. Following this process, researchers were able to validate different game aspects (e.g., mechanics) and could also identify game aws that may be dif cult to detect using formative evaluation or other observational-based methods. Results showed that the proposed evidence-based approach using Game Analytics information is an effective way to evaluate both the game design and the implementation, especially in situations where other types of evaluations that require users' involvement are limited.post-print1129 K