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Brasil R.H.,PUC Minas | Machado A.M.C.,PUC Minas
IEEE Latin America Transactions | Year: 2017

Red light running is a very common traffic violation. Nowadays, vehicles running red traffic lights are detected by sensors fixed on the streets. However a very small percentage of all traffic lights is equipped with such sensors. For this reason, this work proposes a red light running detection system that analyzes the video captured by a camera inside the vehicle. The goal of the proposed algorithm is to monitor the behavior of drivers in public transportation, without any intervention in driving itself, but rather acting in an educational way. Tests are performed using publicly available benchmark videos and other recordings taken in the traffic of a large city. The results are compared based on the execution time, accuracy and error rates. The video processing took less than one tenth of the video duration and the accuracy was up to 96%. © 2003-2012 IEEE.

Silva A.A.,Institute Estudos Avancados | Tomaz L.M.,PUC Minas
Journal of Atmospheric and Solar-Terrestrial Physics | Year: 2013

Surface ozone plays a key role in the photochemistry of the low troposphere, being associated with health and environmental problems. It results from a pool of reactions involving natural and anthropogenic pollutants, solar radiation, and the atmospheric condition. In this study, 12-months of recent measurements of surface ozone concentration (SOC) are presented for an urban, tropical site in Brazil. An analysis of the SOC dependence on the local cloud cover is introduced. Daily maxima of the one-hour averaged data (1-h SOC) ranged from 8.7 to 96.1. ppbv and averaged 38.1±13.7. ppbv, while the monthly averages of the daily maxima of 1-h SOC varied from 24.5±8.8. ppbv in early fall to 46.7±9.3. ppbv in late winter. © 2013 Elsevier Ltd.

Silva A.A.,Institute Estudos Avancados | Tomaz L.M.,PUC Minas
Journal of Atmospheric and Solar-Terrestrial Physics | Year: 2012

Atmospheric ozone remains an important topic especially because of global climate change. In this study, total ozone column (TOC) measurements by a Microtops II (MII) ozone monitor at an urban, tropical site in Brazil are considered with local cloud cover (LCC). The standard deviation (SD) for MII measurements was within 4% averaging 1.14±0.58%. Clouds' presence impacts SD and cloudless sky measurements had SD≤1. The average TOC for the period was 258.0±11.5 Dobson Units. MII TOC data comparison with the Ozone Monitoring Instrument (OMI) showed average differences≤2%. © 2012 Elsevier Ltd.

Guidoni D.L.,Federal University of Minas Gerais | Guidoni D.L.,Federal University of Säo João del Rei | Mini R.A.F.,PUC Minas | Loureiro A.A.F.,Federal University of Minas Gerais
IEEE Communications Letters | Year: 2012

We propose a model to design heterogeneous sensor network topologies with small world features based on the Kleinberg model. The proposed model considers the data communication flow in this kind of network to create network shortcuts toward the sink node in a way that the communication between the sink and the sensor nodes is optimized. The end-points of these shortcuts are nodes with more powerful hardware, leading to a heterogeneous sensor network. Simulation results show that, when the shortcuts are created toward the sink node, with a few powerful sensors, the network presents better small world features and the latency is reduced in the data communication when compared with the original Kleinberg model. © 2012 IEEE.

Ferrari I.F.,Escola Brasileira de Psicanalise | de Morais Andrade M.R.,PUC Minas
Tempo Psicanalitico | Year: 2011

The text addresses important claims made by homosexuals in the hyper modernity: to get married, to adopt and to procreate. Psychoanalysis is the fundament for the reflections centered on gay male couples. There are major difficulties in social and legal field for these subjects in order to carry out the claims of affiliation and adoption without ignoring the difficulties of marriage. This may have favored a greater expression from these subjects, in comparison to lesbians, in the political struggle for social representation of homosexuality. Homosexual practices are discussed as ways of life that question the existing fictions in the Other, requiring then new legal fictions to order them. The text is finalized without tracing predictions for the future, concerning the consequences of this new situation, and mentioning the clinic of tolerance. Prudence without naivety recommends a necessary time to be able to say something about the effects of this new lifestyle by which homosexuals struggle.

Rodrigues T.V.,PUC Minas
2014 IEEE Canada International Humanitarian Technology Conference, IHTC 2014 | Year: 2014

This paper aims to show the IPUC's Technological Fair, an event that is held twice a year by Polytechnic Institute of Pontifical Catholic University of Minas Gerais - IPUC, is currently in its 6th edition. The creativity and innovation of most of these projects from engineering students frequently result in simple and low cost solutions. These projects involve around one thousand students from several areas of engineering of IPUC and they are exposed in the bustling fair. Both issues gained in joining the formation team to work with the challenges of the poverty and development sustainable. The creation of the group IEEE SIGTH PUC Minas was a natural way. The presentations of prototypes and research results are the main advantage of the fair. Various topics have being worked, such as, entrepreneurship including the entrepreneurship social, the accessible and assistive technology, medical technology and of the health, therefore Humanitarian Technology. Renewable resources with several kinds of applications Interdisciplinary Projects can providing to engaged students important skills of self reflection, communication with others forms of the knowledge and holistic view. © 2014 IEEE.

Rodrigues T.V.,PUC MINAS
2014 IEEE International Symposium on Ethics in Science, Technology and Engineering, ETHICS 2014 | Year: 2014

This paper presents the results of the inclusion of ethics, moral, environmental and humanistic principles in the education of engineers at the Pontifical Catholic University of Minas Gerais - PUC Minas. In the last two decades, the Polytechnic Institute of PUC Minas (IPUC) has directed part of their academic work, in special of final graduation projects in this way. The search for technological solutions, must not only be based on economic interests, but also take into account a fundamental objective, the continuation of life in the world with a minimum standard of life quality. These are projects with humanitarian and environmental focus ahead of individual needs. The technological innovation of these projects is aimed not only to meet the market demand, but also the social and local development, overcoming the perception crisis resulting from the Cartesian fragmented vision. The Paradigm of Complexity thus stands as a bold challenge to the fragmentary and reductionistic spirit that continues to dominate the scientific research. The goal was to produce low cost, low energy consumption technological solutions that do not meet planned obsolescence. These projects promote inclusion of people with special needs, inclusive solutions for health, sustainable use of natural resources and mitigation of poverty. University Extension is observed in the institution's everyday actions while maintaining the inseparability of teaching, research and extension, as expressed in article/1988 207 of Brazilian Constitution. This teaching methodology involves the transfer and dissemination of technology, since it relies on partnerships between the industry and university in solidarity and ethics, where engineering is serving the underprivileged. The profile of the professionals that graduate from IPUC include the principles: ethics and morality in the creation of technological innovations, negotiation, reversibility of natural resources and promotion of socio-economic change. The engineer is formed with concerns for better distribution of wealth in the world and the preservation of natural resources. Thus the IPUC is aligned with recent directions adopted by the IEEE in technology that express humanitarian concern for the scarce resources of nature and the challenges in promoting sustainable living with quality of life. © 2014 IEEE.

Condalto S.,PUC MINAS
2015 IEEE Canada International Humanitarian Technology Conference, IHTC 2015 | Year: 2015

It's evident in everyday life, the Earth cry for its needs, but few are those who stop and give deserved importance to the case. Unfortunately, the world is going through extensive famine crisis, homelessness, inequalities and numerous precarious situations which much has to say, but little is done to change. Given the urgent need to ensure the survival of the world, was created the 'Earth Charter', drafted by 23 representatives from several countries that met to ensure a planet where everyone can live with dignity, having access to the resources needed to build a sustainable Earth, more egalitarian and better living. This paper aims to discuss and raise awareness, at first, with Metallurgical Engineering students during the seventh edition of the technological fair IPUC-Polytechnic Institute of PUC Minas, addressing the issues raised by the document, providing reflection and dialogue about the principles of the Earth Charter with the participants and other exhibitors at the event. For such purpose, we developed a game called 'Earth Charter game' consisting of a wheel with 16 numbers-each representing a charter 'principle' and their subjects, in order to facilitate dialogue about the countless challenges faced by future professionals not only of Metallurgical Engineering but all other areas. This project aims to place this discussion in other engineering courses at PUC Minas and also, in a didactic way, insert it into primary and secondary schools. From the constructive and thoughtful dialogue generated by the project, you can apply the principles discussed in the daily life of each person, in order to have a sustainable and careful development relative to the Earth, including its population and ecosystem in general. This paper's advisers participates in the SIGHT PUC Minas. © 2015 IEEE.

Pujos F.,CONICET | Pujos F.,Institute Francais dEtudes Andines IFEA | Gaudin T.J.,University of Tennessee at Chattanooga | de Iuliis G.,University of Toronto | Cartelle C.,PUC Minas
Journal of Mammalian Evolution | Year: 2012

The occasion of the Xenarthra Symposium during the ICVM 9 meeting allowed us to reflect on the considerable advances in the knowledge of sloths made by the "X-community" over the past two decades, particularly in such aspects as locomotion, mastication, diet, dental terminology, intraspecific variation, sexual dimorphism, and phylogenetic relationships. These advancements have largely been made possible by the application of cladistic methodology (including DNA analyses) and the discovery of peculiar forms such as Diabolotherium, Thalassocnus, and Pseudoglyptodon in traditionally neglected areas such as the Chilean Andes and the Peruvian Pacific desert coast. Modern tree sloths exhibit an upside-down posture and suspensory locomotion, but the habits of fossil sloths are considerably more diverse and include locomotory modes such as inferred bipedality, quadrupedality, arboreality or semiarboreality, climbing, and an aquatic or semi-aquatic lifestyle in saltwater. Modern tree sloths are generalist browsers, but fossil sloths had browsing, grazing, or mixed feeding dietary habits. Discovery of two important sloth faunas in Brazil (Jacobina) and southern North America (Daytona Beach and Rancho La Brea) have permitted evaluation of the ontogenetic variation in Eremotherium laurillardi and the existence of possible sexual dimorphism in this sloth and in Paramylodon harlani. A new dental terminology applicable to a majority of clades has been developed, facilitating comparisons among taxa. An analysis wherein functional traits were plotted onto a phylogeny of sloths was used to determine patterns of evolutionary change across the clade. These analyses suggest that megatherioid sloths were primitively semiarboreal or possessed climbing adaptations, a feature retained in some members of the family Megalonychidae. Pedolateral stance in the hindfoot is shown to be convergently acquired in Mylodontidae and Megatheria (Nothrotheriidae + Megatheriidae), this feature serving as a synapomorphy of the latter clade. Digging adaptations can only be securely ascribed to scelidotheriine and mylodontine sloths, and the latter are also the only group of grazing sloths, the remainder being general browsers. © 2012 Springer Science+Business Media, LLC.

Rodrigues T.V.,PUC MINAS
2014 IEEE Canada International Humanitarian Technology Conference, IHTC 2014 | Year: 2014

This paper presents the work of Maria Teixeira School-MTS as a pedagogical methodology of social and educational inclusion, and making a historical review of its trajectory. MTS is a non-profit institution located in the countryside of Luziânia city, (Brazil), promoting 1st phase of elementary school and youth and adult education. In 2013, offered free and quality educational service for 208 students, among children, teenagers and adults from low-income families in the common and special, under the educational inclusion. About 60 students have some type of disabilities, such as: Down syndrome, autism, mental, physical, auditory deficiencies. The proposal is based on constructivism and educational, technological and social inclusion. Founded in 1994, MTS has worked since its origin with the 'pedagogy of respect for differences', understanding difference as richness. Stimulates the development of efficiencies instead of highlighting the deficiencies. Luziânia is considered the 16th most violent city in Brazil, with few opportunities for young people at social risk. MTS adopts the Brazilian Sign Language as a discipline. Everyone learns LIBRAS, not just the deaf students. In addition, LIBRAS is used as an alternative communication to listeners students with difficulty speech, with great results. MTS has an ecological action with recycled material, promoting sustainable productive chain, avoiding waste, generating income with craft workshops from the transformed objects sale. MTS presented their demands to the group of engineers involved in humanitarian technology, being an NGO-partner of the IEEE-SIGHT-PUCMinas because of the need for accessible and assistive technologies appropriate technologies and innovative teaching methodology. © 2014 IEEE.

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