Prototipo de un goniómetro digital empleando el sistema Kinect de Microsoft

En esta tesis se presenta el diseño, implementación y validación de un prototipo de goniómetro digital utilizando una computadora y el sistema Kinect de Microsoft. Se evaluó la validez y confiabilidad de las medidas de los rangos de movimiento (ROMs, por sus siglas en inglés) obtenidas mediante el prototipo, para determinar si son adecuadas para ser utilizadas en la práctica clínica

La corrupción administrativa en México. José Juan Sánchez González, México, Instituto de Administración Pública del Estado de México, 2012, 531 pp.

México ocupa la posición 105 en el mundo en materia de corrupción, con un valor de 34 sobre 100 puntos; muy por debajo de Dinamarca, Finlandia y Nueva Zelanda, que obtuvieron 90 puntos. Nuestro país tiene una posición alta en comparación con otros paí- ses miembros de la Organización para la Cooperación y el Desarrollo Económicos (OCDE) y el G20, de acuerdo con el Índice de Percepción de la Corrupción emitido por Transparencia Internacional (2012). Asimismo, de manera vergonzosa se encuentra en una posición similar a la de países como: Argelia, Armenia, Bolivia, Gambia, Kosovo, Mali y Filipinas

Homenaje a la memoria de Narciso Díaz de Escovar : celebrado en el Círculo Mercantil de Málaga el día 22 de junio de 1935

Copia Digital : Diputación de Málaga. Biblioteca Cánovas del Castillo, 201

Simplifying collaboration in co-located virtual environments using the active-passive approach

The design and implementation of co-located immersive virtual environments with equal interaction possibilities for all participants is a complex topic. The main problem, on a fundamental technical level, is the difficulty of providing perspective-correct images for each participant. There is consensus that the lack of a correct perspective view will negatively affect interaction fidelity and therefore also collaboration. Several research approaches focus on providing a correct perspective view to all participants to enable co-located work. However, these approaches are usually either based on custom hardware solutions that limit the number of users with a correct perspective view or software solutions striving to eliminate or mitigate restrictions with custom image-generation approaches. In this paper we investigate an often overlooked approach to enable collaboration for multiple users in an immersive virtual environment designed for a single user. The approach provides one (active) user with a perspective-correct view while other (passive) users receive visual cues that are not perspective-correct. We used this active-passive approach to investigate the limitations posed by assigning the viewpoint to only one user. The findings of our study, though inconclusive, revealed two curiosities. First, our results suggest that the location of target geometry is an important factor to consider for designing interaction, expanding on prior work that has studied only the relation between user positions. Secondly, there seems to be only a low cost involved in accepting the limitation of providing perspective-correct images to a single user, when comparing with a baseline, during a coordinated work approach. These findings advance our understanding of collaboration in co-located virtual environments and suggest an approach to simplify co-located collaboration

Extraction and Biochemical Characterization of Alligator mississippiensis glycosaminoglycans and an Ex-vivo Murine Pilot Study to Test their Potential Effect on a Selected Panel of Genes Associated with Cystic Fibrosis

Cystic fibrosis (CF) is a genetic disorder with a median survival age of 40.7 years. Chronic airway inflammation and dehydration are critical features of CF. The size and structure-dependent hydration and anti-inflammatory properties of glycosaminoglycans (GAGs) such as hyaluronic acid (HA) may help ameliorate these symptoms. The GAGs contained in farmed Alligator mississippiensis by-products offer a potential to improve waste management practices and increase revenue in the alligator industry, through their development for use in biomedical applications. This study aimed to efficiently extract and characterize GAGs from alligator carcasses (ACS), backstraps (ABS), feet (AFT) and eyeballs (AEB), to evaluate their effects on CF-like airways ex-vivo. Samples were collected from local alligator processing facilities and extractions were conducted according to a randomized complete block design. The contents of sulfated and non-sulfated GAGs were determined using dimethylmethylene blue and HA ELISA assays, respectively. Total GAG content was confirmed by the carbazole reaction assay. Protein content, mineral content and molecular weight (MW) were determined by the bicinchoninic acid assay, inductively coupled plasma and 0.75% agarose electrophoresis, respectively. FTIR spectroscopy was conducted to fingerprint the structures of the extracted GAGs. Multi-step processes for the extraction of GAGs from alligator by-products were developed and ABS had the highest (p≤0.05) total GAG content (15.53±0.27 mg/g), followed by AFT (4.72±0.05 mg/g), AEB (0.79±0.01 mg/g) and ACS (0.60±0.00 mg/g). These results are equivalent to ~2.13 g GAGs per harvest-size farmed alligator or an estimated GAG production of ~0.73 tons/year in Louisiana. The GAGs in all samples were predominantly (\u3e97%) HA with a poly-disperse MW of up to 1600 kDa. FTIR revealed spectra showing characteristic GAG features such as -OH, -NH, -CH and amide signals from residual protein, comparable to previous studies on animal-sourced GAGs. Ex-vivo gene expression analysis of Scnn1b-Tg mice tracheal epithelial cells indicated that AEB GAGs (0.5 mg/12 mm insert) have the potential to regulate the expression of genes which may aid in restoring the protease/anti-protease balance, reducing inflammation, and regulating ASL osmotic homeostasis. Alligator GAGs may also aid in the treatment of other inflammatory conditions such as wound healing and arthritis in humans and animals

Production and processing of a functional yogurt fortified with microencapsulated omega-3 and vitamin E

Market and nutritional values of fermented milks can be enhanced by adding microencapsulated polyunsaturated fish oil and vitamin E. Polyunsaturated fatty acids (PUFAs) lower the risk of heart disease and vitamin E is an important lipophilic antioxidant that protects cell membranes from oxidation. This study aimed to develop functional yogurts YMSO and YMMO fortified with á-tocopherol and microencapsulated salmon oil (MSO) or microencapsulated menhaden oil (MMO), respectively and to evaluate their physicochemical properties during 1-mo of storage. Stable emulsions were prepared with 7% red salmon oil (SO) or menhaden oil (MO), 22% arabic gum, 11% maltodextrin, 0.83% á-tocopherol and 59.17% water. The emulsions were spray dried and MSO or MMO were produced. Plain yogurt (PY) was produced and 2% of MSO or MMO were added to three batches of yogurt to produce YMSO or YMMO. PY and yogurt with 22% arabic gum and 11% maltodextrin (YPAM) were used as controls. Yogurts were analyzed for syneresis, pH, color, lactic acid bacteria (LAB), thiobarbituric acid (TBA) value, fatty acid methyl esters composition, á-tocopherol content, rheological properties and microstructure. Triplicate experiments were conducted and data was analyzed at á=0.05. After 1-mo storage, the yogurts pH decreased and syneresis slightly increased regardless of the treatment and all yogurts had a similar reduction in LAB counts from 8 Log CFU/g to 6 Log CFU/g. á-Tocopherol contents of YMMO and YMSO were significantly (P\u3c0.05) higher than those of PY and YPAM during the 4 week storage study. Initial PY, YPAM, YMMO and YMSO á-tocopherol contents were 37.65 ± 3.17, 43.03 ± 0.71, 75.61 ± 0.98, and 72.09 ± 0.18 µg/g yogurt, respectively. All yogurts had low TBA values and YMMO and YMSO had significantly higher (P\u3c0.05) total ù-3 content than the controls. All yogurts were described as pseudoplastic fluids and showed viscoelastic characteristics during 1 month storage. The study demonstrated that PY can be fortified with fish oil and á-tocopherol