967 resultados para Android app


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En esta memoria se recoge toda la documentación que se genera en las etapas de desarrollo de un proyecto software: recogida inicial de requerimientos, análisis, diseño, implementación y validación. El software a desarrollar es un aplicativo pensado para un teléfono móvil multiplataforma usando un framework de desarrollo ágil. El objetivo de dicha aplicación ha sido crear una utilidad destinada principalmente para todos los usuarios que practiquen deporte al aire libre, ya sea correr, caminar o montar en bicicleta.

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Leptin, a peripheral signal synthetized by the adipocyte to regulate energy metabolism, can also be produced by placenta, where it may work as an autocrine hormone. We have previously demonstrated that leptin promotes proliferation and survival of trophoblastic cells. In the present work, we aimed to study the molecular mechanisms that mediate the survival effect of leptin in placenta. We used the human placenta choriocarcinoma BeWo and first trimester Swan-71 cell lines, as well as human placental explants. We tested the late phase of apoptosis, triggered by serum deprivation, by studying the activation of Caspase-3 and DNA fragmentation. Recombinant human leptin added to BeWo cell line and human placental explants, showed a decrease on Caspase-3 activation. These effects were dose dependent. Maximal effect was achieved at 250 ng leptin/ml. Moreover, inhibition of endogenous leptin expression with 2 µM of an antisense oligonucleotide, reversed Caspase-3 diminution. We also found that the cleavage of Poly [ADP-ribose] polymerase-1 (PARP-1) was diminished in the presence of leptin. We analyzed the presence of low DNA fragments, products from apoptotic DNA cleavage. Placental explants cultivated in the absence of serum in the culture media increased the apoptotic cleavage of DNA and this effect was prevented by the addition of 100 ng leptin/ml. Taken together these results reinforce the survival effect exerted by leptin on placental cells. To improve the understanding of leptin mechanism in regulating the process of apoptosis we determined the expression of different intermediaries in the apoptosis cascade. We found that under serum deprivation conditions, leptin increased the anti-apoptotic BCL-2 protein expression, while downregulated the pro-apoptotic BAX and BID proteins expression in Swan-71 cells and placental explants. In both models leptin augmented BCL-2/BAX ratio. Moreover we have demonstrated that p53, one of the key cell cycle-signaling proteins, is downregulated in the presence of leptin under serum deprivation. On the other hand, we determined that leptin reduced the phosphorylation of Ser-46 p53 that plays a pivotal role for apoptotic signaling by p53. Our data suggest that the observed anti-apoptotic effect of leptin in placenta is in part mediated by the p53 pathway. In conclusion, we provide evidence that demonstrates that leptin is a trophic factor for trophoblastic cells.

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The role of peroxisome proliferator activator receptor (PPAR)β/δ in the pathogenesis of Alzheimer's disease has only recently been explored through the use of PPARβ/δ agonists. Here we evaluated the effects of PPARβ/δ deficiency on the amyloidogenic pathway and tau hyperphosphorylation. PPARβ/δ-null mice showed cognitive impairment in the object recognition task, accompanied by enhanced DNA-binding activity of NF-κB in the cortex and increased expression of IL-6. In addition, two NF-κB-target genes involved in β-amyloid (Aβ) synthesis and deposition, the β site APP cleaving enzyme 1 (Bace1) and the receptor for advanced glycation endproducts (Rage), respectively, increased in PPARβ/δ-null mice compared to wild type animals. The protein levels of glial fibrillary acidic protein (GFAP) increased in the cortex of PPARβ/δ-null mice, which would suggest the presence of astrogliosis. Finally, tau hyperphosphorylation at Ser199 and enhanced levels of PHF-tau were associated with increased levels of the tau kinases CDK5 and phospho-ERK1/2 in the cortex of PPARβ/δ(-/-) mice. Collectively, our findings indicate that PPARβ/δ deficiency results in cognitive impairment associated with enhanced inflammation, astrogliosis and tau hyperphosphorylation in the cortex.

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Desenvolupament d'una aplicació per a dispositius mòbils basats en Android. L'aplicació és un joc multi-pantalla, multi-nivell.

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Desenvolupament d'una aplicació de posicionament GPS per a dispositius amb sistema operatiu Android.

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Sistema desenvolupat per analitzar monedes focalitzat principalment en les persones amb algun tipus d'incapacitat visual. L'aplicació permet reconèixer i classificar les monedes d'una escena mitjançant l'ús de la càmera d'un telèfon mòbil amb sistema operatiu Android.

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Aquest treball tracta sobre el desenvolupament d'una aplicació per a dispositius mòbils Android. Aquesta aplicació és un front-end pel servei Nagios, que s'encarrega de monitoritzar l'estat dels serveis d'una xarxa.

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Desenvolupament d'una aplicació turística de la ciutat de Reus per a dispositius Android.

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Este trabajo se basa en una aplicación para dispositivos móviles para Android basada en la API de Maps de esta plataforma.

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Descripció detallada del proces de planificació, anàlisi, disseny i implementació d'una base de dades d'un sistema de descàrrega d'aplicacions per a dispositius mòbils intel·ligents.

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Desarrollo de una aplicación Android que ayuda a saber la talla de zapatos de un usuario para facilitar la compra a través de Internet.

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Projecte que presenta la implementació per a dispositius Android del joc 'Simon says'.

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Aplicación para dispositivos móviles Android para el registro, visualización e intercambio de etiquetas geolocalizadas.

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Este TFC ha consistido en el desarrollo de una aplicación móvil para el sistema operativo Android en el que, además, se hace uso del API de Google Maps. Esta aplicación pretende ser un cuaderno de viaje para dispositivos móviles, de manera que el usuario pueda almacenar cualquier recuerdo que considere oportuno durante su viaje, al igual que haría sobre una típica libreta, pero aprovechando las facilidades que ofrece la tecnología.

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Aplicació mòbil multiplataforma pel seguiment de consum de vehicles desenvolupada en HTML5/JS per entorns Android/iOS.