Binary-Phase vs. Frequency Modulated Radar Measured Performances for Automotive Applications

Radars have been widely deployed in cars in recent years, for advanced driving assistance systems. The most popular and studied modulated waveform for automotive radar is the frequencymodulated continuous wave (FMCW), due to FMCW radar technology’s ease of implementation and low power consumption. However, FMCW radars have several limitations, such as low interference resilience, range-Doppler coupling, limited maximum velocity with time-division multiplexing (TDM), and high-range sidelobes that reduce high-contrast resolution (HCR). These issues can be tackled by adopting other modulated waveforms. The most interesting modulated waveform for automotive radar, which has been the focus of research in recent years, is the phase-modulated continuous wave (PMCW): this modulated waveform has a better HCR, allows large maximum velocity, permits interference mitigation, thanks to codes orthogonality, and eases integration of communication and sensing. Despite the growing interest in PMCW technology, and while simulations have been extensively performed to analyze and compare its performance to FMCW, there are still only limited real-world measured data available for automotive applications. In this paper, the realization of a 1 Tx/1 Rx binary PMCW radar, assembled with connectorized modules and an FPGA, is presented. Its captured data were compared to the captured data of an off-the-shelf system-on-chip (SoC) FMCW radar. The radar processing firmware of both radars were fully developed and optimized for the tests. The measured performances in real-world conditions showed that PMCW radars manifest better behavior than FMCW radars, regarding the above-mentioned issues. Our analysis demonstrates that PMCW radars can be successfully adopted by future automotive radars

The future imagined: Exploring fiction as a means of reflecting on today’s Grand Societal Challenges and tomorrow’s options

European science policy (so-called Horizon 2020) is guided by Grand Societal Challenges (GSCs) with the explicit aim of shaping the future. In this paper we propose an innovative approach to the analysis and critique of Europe’s GSCs. The aim is to explore how speculative and creative fiction offer ways of embodying, telling, imagining, and symbolising ‘futures’, that can provide alternative frames and understandings to enrich the grand challenges of the 21st century, and the related rationale and agendas for ERA and H2020. We identify six ways in which filmic and literary representations can be considered creative foresight methods (i.e. through: creative input, detail, warning, reflection, critique, involvement) and can provide alternative perspectives on these central challenges, and warning signals for the science policy they inform. The inquiry involved the selection of 64 novels and movies engaging with notions of the future, produced over the last 150 years. Content analysis based on a standardised matrix of major themes and sub-domains, allows to build a hierarchy of themes and to identify major patterns of long-lasting concerns about humanity’s future. The study highlights how fiction sees oppression, inequality and a range of ethical issues linked to human and nature’s dignity as central to, and inseparable from innovation, technology and science. It concludes identifying warning signals in four major domains, arguing that these signals are compelling, and ought to be heard, not least because elements of such future have already escaped the imaginary world to make part of today’s experience. It identifies areas poorly defined or absent from Europe's science agenda, and argues for the need to increase research into human, social, political and cultural processes involved in techno-science endeavours

Implementación en Haskell de un algoritmo general para resolución de ecuaciones por métodos iterativos

En este trabajo se dise na e implementa en el lenguaje funcional Haskell un algoritmo gen erico para solucionar ecuaciones no lineales y sistemas de ecuaciones lineales El dise no del algoritmo se basa en que los m etodos num ericos usados en la resoluci on de ecuaciones y sistemas presentan el mismo esquema de iteraci on lo cual permite abstraer el m etodo y obtener cada algoritmo de resoluci on por un m etodo determinado como una instancia del algoritmo general Uno de los aspectos m as detacables del uso de Haskell en la implementaci on radica en la posibilidad de lograr el nivel de abstracci on requerido de niendo una funci on sobre el dominio de los m etodos iterativos para representar el algoritmo gen erico donde cada instancia se implementa como una aplicaci on de la funci on Interesa resaltar tambi en el poder que brinda para la implementaci on de funciones sobre objetos in nitos la sem antica perezosa de HaskellEje: Conferencia latinoamericana de programación funcionalRed de Universidades con Carreras en Informática (RedUNCI

The cost-utility of Viagra® in The Netherlands

OBJECTIVE: Clinical trials suggest that sildenafil is an effective treatment for erectile dysfunction. Nevertheless, reimbursement is controversial: sildenafil is expected to be more effective than conservative therapy (papaverine/ phentolamine injections), but also more costly to society. Economic appraisal of sildenafil is of interest given the prevalence of the disorder. DESIGN: We analyzed the cost-effectiveness of a sildenafil scenario (allowing a switch to injection therapy) and the papaverine/ phentolamine scenario (conservative therapy, no switch allowed). Analyses were performed from the societal perspective. Values for health states of erectile dysfunction were collected using time trade-off. Using these values (N=169), we converted trial outcomes (Goldstein, 1998) into quality adjusted lif

Análisis petrográfico de material cerámico del Delta del Paraná

El material más abundante del registro arqueológico del Delta del río Paraná es la alfarería. La misma ha sido hallada principalmente en contextos domésticos, así como en contextos funerarios. La mayoría de la información sobre el material proviene de estudios macroscópicos, morfológicos, tecnológicos y/o estilísticos. Los análisis petrográficos, la herramienta más utilizada en arqueología para caracterizar composicional y texturalmente las pastas cerámicas, son escasos. En el presente trabajo se exponen los resultados del análisis petrográfico, efectuado sobre láminas delgadas de tiestos procedentes de investigaciones de sitios arqueológicos del Delta Superior del Paraná y de colecciones de museo del Delta Inferior. Con este estudio se busca profundizar el conocimiento sobre los procesos de manufactura cerámica, selección de inclusiones, características físicas del producto cocido y potenciales usos dados a la alfarería por las poblaciones que habitaron las márgenes de ríos y arroyos del Delta del Paraná durante el Holoceno tardío.The most abundant material in the archaeological record of the Paraná River Delta consists of ceramics. It has been found mainly in domestic contexts, as well as in funeral contexts. Most of the information about this material comes from macroscopic, morphological, technological, and/or stylistic studies. Petrographic analysis, the most widespread tool used en archaeology for compositional and textural characterization of ceramic pastes, are scarce. This paper shows the results of the petrographic analysis performed on thin layers of fragments of ceramics from archaeological cites in the Upper Delta of the Parana River and collections from the lower Delta museum. This study aims at deepening the knowledge on ceramic manufacture processes, inclusion selection, physical properties of the fired product and potential uses of pottery by the peoples that inhabited the banks of rivers and streams in the Parana Delta during the late Holocene.Facultad de Ciencias Naturales y Muse

Análisis petrográfico de material cerámico del Delta del Paraná

El material más abundante del registro arqueológico del Delta del río Paraná es la alfarería. La misma ha sido hallada principalmente en contextos domésticos, así como en contextos funerarios. La mayoría de la información sobre el material proviene de estudios macroscópicos, morfológicos, tecnológicos y/o estilísticos. Los análisis petrográficos, la herramienta más utilizada en arqueología para caracterizar composicional y texturalmente las pastas cerámicas, son escasos. En el presente trabajo se exponen los resultados del análisis petrográfico, efectuado sobre láminas delgadas de tiestos procedentes de investigaciones de sitios arqueológicos del Delta Superior del Paraná y de colecciones de museo del Delta Inferior. Con este estudio se busca profundizar el conocimiento sobre los procesos de manufactura cerámica, selección de inclusiones, características físicas del producto cocido y potenciales usos dados a la alfarería por las poblaciones que habitaron las márgenes de ríos y arroyos del Delta del Paraná durante el Holoceno tardío.The most abundant material in the archaeological record of the Paraná River Delta consists of ceramics. It has been found mainly in domestic contexts, as well as in funeral contexts. Most of the information about this material comes from macroscopic, morphological, technological, and/or stylistic studies. Petrographic analysis, the most widespread tool used en archaeology for compositional and textural characterization of ceramic pastes, are scarce. This paper shows the results of the petrographic analysis performed on thin layers of fragments of ceramics from archaeological cites in the Upper Delta of the Parana River and collections from the lower Delta museum. This study aims at deepening the knowledge on ceramic manufacture processes, inclusion selection, physical properties of the fired product and potential uses of pottery by the peoples that inhabited the banks of rivers and streams in the Parana Delta during the late Holocene.Facultad de Ciencias Naturales y Muse

Manejo y aprovechamiento del medio por parte de los grupos constructores de montículos: cuenca de la laguna de Castillos, Rocha-Uruguay

En este trabajo se presentan los resultados obtenidos mediante el análisis arqueofaunístico y etnobotánico de los materiales recuperados en sitios arqueológicos de la cuenca de la Laguna de Castillos, Dto de Rocha, Uruguay. A través de estos se intenta trascender la información únicamente biológica de los restos. para dar lugar a posibles interrogantes y respuestas de orden cultural y ambiental. Asimismo, se plantea una aproximación a la dieta de los grupos que ahitaron la cuenca y la posible importancia económica de los recursos, apuntando también a variantes en cuanto al manejo de los mismos desde una perspectiva temporal y ambiental. La Identificación de recursos constituye un aporte significativo para la reconstrucción de estrategias de subsistencia en diferentes periodos de tiempo. Los resultados obtenidos amplían el planteo que la subsistencia de los grupos que habitaron la cuenca lacustre estuvo basada en la recolección, el manejo de especies vegetales silvestres y cultivadas además de la caza y de la pesca.This study presents the results obtained through the archaeofaunal and ethnobotanical analysis of the archaeological sites located in the Castillos Lagoon Basin in Rocha, Uruguay. The goal was to go beyond the exclusively biological information of the remains in order to find answers for cultural and environmental questions. This study aims at determining the diet of the groups that inhabited the basin and the possible economic importance of resources used while also taking into account variables in connection with their management from a temporal and environmental standpoint. The identification of the resources was an important contribution or the reconstruction of subsistence strategies in different periods of time. The results indicates that subsistence of the groups that inhabited the lagoon basin was based on gathering and/or management of both wild and cultivated vegetal species, as well as hunting and fishing.Sociedad Argentina de Antropologí

Análisis petrográfico de material cerámico del Delta del Paraná

El material más abundante del registro arqueológico del Delta del río Paraná es la alfarería. La misma ha sido hallada principalmente en contextos domésticos, así como en contextos funerarios. La mayoría de la información sobre el material proviene de estudios macroscópicos, morfológicos, tecnológicos y/o estilísticos. Los análisis petrográficos, la herramienta más utilizada en arqueología para caracterizar composicional y texturalmente las pastas cerámicas, son escasos. En el presente trabajo se exponen los resultados del análisis petrográfico, efectuado sobre láminas delgadas de tiestos procedentes de investigaciones de sitios arqueológicos del Delta Superior del Paraná y de colecciones de museo del Delta Inferior. Con este estudio se busca profundizar el conocimiento sobre los procesos de manufactura cerámica, selección de inclusiones, características físicas del producto cocido y potenciales usos dados a la alfarería por las poblaciones que habitaron las márgenes de ríos y arroyos del Delta del Paraná durante el Holoceno tardío.The most abundant material in the archaeological record of the Paraná River Delta consists of ceramics. It has been found mainly in domestic contexts, as well as in funeral contexts. Most of the information about this material comes from macroscopic, morphological, technological, and/or stylistic studies. Petrographic analysis, the most widespread tool used en archaeology for compositional and textural characterization of ceramic pastes, are scarce. This paper shows the results of the petrographic analysis performed on thin layers of fragments of ceramics from archaeological cites in the Upper Delta of the Parana River and collections from the lower Delta museum. This study aims at deepening the knowledge on ceramic manufacture processes, inclusion selection, physical properties of the fired product and potential uses of pottery by the peoples that inhabited the banks of rivers and streams in the Parana Delta during the late Holocene.Facultad de Ciencias Naturales y Muse

Manejo y aprovechamiento del medio por parte de los grupos constructores de montículos: cuenca de la laguna de Castillos, Rocha-Uruguay

En este trabajo se presentan los resultados obtenidos mediante el análisis arqueofaunístico y etnobotánico de los materiales recuperados en sitios arqueológicos de la cuenca de la Laguna de Castillos, Dto de Rocha, Uruguay. A través de estos se intenta trascender la información únicamente biológica de los restos. para dar lugar a posibles interrogantes y respuestas de orden cultural y ambiental. Asimismo, se plantea una aproximación a la dieta de los grupos que ahitaron la cuenca y la posible importancia económica de los recursos, apuntando también a variantes en cuanto al manejo de los mismos desde una perspectiva temporal y ambiental. La Identificación de recursos constituye un aporte significativo para la reconstrucción de estrategias de subsistencia en diferentes periodos de tiempo. Los resultados obtenidos amplían el planteo que la subsistencia de los grupos que habitaron la cuenca lacustre estuvo basada en la recolección, el manejo de especies vegetales silvestres y cultivadas además de la caza y de la pesca.This study presents the results obtained through the archaeofaunal and ethnobotanical analysis of the archaeological sites located in the Castillos Lagoon Basin in Rocha, Uruguay. The goal was to go beyond the exclusively biological information of the remains in order to find answers for cultural and environmental questions. This study aims at determining the diet of the groups that inhabited the basin and the possible economic importance of resources used while also taking into account variables in connection with their management from a temporal and environmental standpoint. The identification of the resources was an important contribution or the reconstruction of subsistence strategies in different periods of time. The results indicates that subsistence of the groups that inhabited the lagoon basin was based on gathering and/or management of both wild and cultivated vegetal species, as well as hunting and fishing.Sociedad Argentina de Antropologí