Citizens are expected to require the growth of multiple Internet of Things (IoT) -based applicati... more Citizens are expected to require the growth of multiple Internet of Things (IoT) -based applications to improve public and private services. According to their concept, smart cities seek to improve the efficiency, reliability, and resilience of these services. Consequently, this paper searches for a new vision for resolving problems related to the quick deployment of a wireless sensor network (WSN) by using a sizing model and considering the capacity and coverage of the concentrators. Additionally, three different routing models of these technology resources are presented as alternatives for each WSN deployment to ensure connectivity between smart meters and hubs required for smart metering. On the other hand, these solutions must reduce costs when this type of wireless communication network is deployed. The present work proposes various optimization models that consider the physical and network layers in order to integrate different wireless communication technologies, thus reducin...
2016 International Conference on Information and Communication Technology Convergence (ICTC), 2016
Generalized Frequency Division Multiplexing (GFDM) has been recently proposed for next generation... more Generalized Frequency Division Multiplexing (GFDM) has been recently proposed for next generation 5G mobile networks. A disadvantage of GFDM, similarly to the other multicarrier signals, is its high peak-to-average-power ratio (PAPR), Large PAPR signals can easily saturate the transmit power amplifier and cause degradation in BER performance and out-of-band emissions. In this work we investigate the performance of GFDM in presence nonlinearity effects in the transmission channel, with the aim to explore the effectiveness of some PAPR reduction techniques to mitigate OOB radiation and error performance degradation. To reduce PAPR we consider clipping techniques with iterative receiver, companding and selective mapping techniques, and for performance comparison we also evaluate IFDMA. The simulation results show that Clipping techniques delivers the best result, whereas IFDMA is able to maintain an acceptable performance level with low complexity in the receiver.
A report that effects of butyrate on some cells may be mediated by activation of AMP-activated pr... more A report that effects of butyrate on some cells may be mediated by activation of AMP-activated protein kinase (AMPK) prompted this study which examines if other AMPK activators can induce differentiation and inhibit proliferation of colon cancer cells in a manner similar to butyrate. Using induction of alkaline phosphatase as a marker, it was observed that compound C, an AMPK inhibitor, is able to reduce the differentiating effect of butyrate on SW1116 and Caco-2 colon cancer cells. Metformin was observed to be less effective than butyrate in the induction of alkaline phosphatase but was more effective as a growth inhibitor. Phenformin was found to be a more potent growth inhibitor than metformin and both compounds cause acidification of the medium when incubated with colon cancer cells. Combined incubation of 2-deoxyglucose with either of the biguanides prevented the acidification of the medium but enhanced the growth inhibitory effects.
Radiative balance of Urban Canyons in an arid area. A Papparelli, A Kurban, M Cunsulo, E Montilla... more Radiative balance of Urban Canyons in an arid area. A Papparelli, A Kurban, M Cunsulo, E Montilla, C Herrera, A Ortega Architectural Science Review 46:33, 267-272, 2003. The dimensional relationships of Urban Canyons ...
Citizens are expected to require the growth of multiple Internet of Things (IoT) -based applicati... more Citizens are expected to require the growth of multiple Internet of Things (IoT) -based applications to improve public and private services. According to their concept, smart cities seek to improve the efficiency, reliability, and resilience of these services. Consequently, this paper searches for a new vision for resolving problems related to the quick deployment of a wireless sensor network (WSN) by using a sizing model and considering the capacity and coverage of the concentrators. Additionally, three different routing models of these technology resources are presented as alternatives for each WSN deployment to ensure connectivity between smart meters and hubs required for smart metering. On the other hand, these solutions must reduce costs when this type of wireless communication network is deployed. The present work proposes various optimization models that consider the physical and network layers in order to integrate different wireless communication technologies, thus reducin...
2016 International Conference on Information and Communication Technology Convergence (ICTC), 2016
Generalized Frequency Division Multiplexing (GFDM) has been recently proposed for next generation... more Generalized Frequency Division Multiplexing (GFDM) has been recently proposed for next generation 5G mobile networks. A disadvantage of GFDM, similarly to the other multicarrier signals, is its high peak-to-average-power ratio (PAPR), Large PAPR signals can easily saturate the transmit power amplifier and cause degradation in BER performance and out-of-band emissions. In this work we investigate the performance of GFDM in presence nonlinearity effects in the transmission channel, with the aim to explore the effectiveness of some PAPR reduction techniques to mitigate OOB radiation and error performance degradation. To reduce PAPR we consider clipping techniques with iterative receiver, companding and selective mapping techniques, and for performance comparison we also evaluate IFDMA. The simulation results show that Clipping techniques delivers the best result, whereas IFDMA is able to maintain an acceptable performance level with low complexity in the receiver.
A report that effects of butyrate on some cells may be mediated by activation of AMP-activated pr... more A report that effects of butyrate on some cells may be mediated by activation of AMP-activated protein kinase (AMPK) prompted this study which examines if other AMPK activators can induce differentiation and inhibit proliferation of colon cancer cells in a manner similar to butyrate. Using induction of alkaline phosphatase as a marker, it was observed that compound C, an AMPK inhibitor, is able to reduce the differentiating effect of butyrate on SW1116 and Caco-2 colon cancer cells. Metformin was observed to be less effective than butyrate in the induction of alkaline phosphatase but was more effective as a growth inhibitor. Phenformin was found to be a more potent growth inhibitor than metformin and both compounds cause acidification of the medium when incubated with colon cancer cells. Combined incubation of 2-deoxyglucose with either of the biguanides prevented the acidification of the medium but enhanced the growth inhibitory effects.
Radiative balance of Urban Canyons in an arid area. A Papparelli, A Kurban, M Cunsulo, E Montilla... more Radiative balance of Urban Canyons in an arid area. A Papparelli, A Kurban, M Cunsulo, E Montilla, C Herrera, A Ortega Architectural Science Review 46:33, 267-272, 2003. The dimensional relationships of Urban Canyons ...
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