bluuebunny/crossref_metadata_2025 huggingface dataset:
Information Aggregation in Intelligent Systems Using Generalized Operators
Authors: Rudas Imre J. , Fodor János
Published: January 2016

Aggregation of information represented by membership functions is a central matter in intelligent systems where fuzzy rule base and reasoning mechanism are applied. Typical examples of such systems consist of, but not limited to, fuzzy control, decision support and expert systems. Since the advent of fuzzy sets a great number of fuzzy connectives, aggregation operators have been introduced. Some families of such operators (like t-norms) have become standard in the field. Nevertheless, it also became clear that these operators do not always follow the real phenomena. Therefore, there is a natural need for finding new operators to develop more sophisticated intelligent systems. This paper summarizes the research results of the authors that have been carried out in recent years on generalization of conventional operators.
Medium Term Electric Load Forecasting Using TLFN Neural Networks
Authors: Bassi Danilo , Olivares Oscar
Published: January 2016

This paper develops medium term electric load forecasting using neural networks, based on historical series of electric load, economic and demographic variables. The neural network chosen for this work is the Time Lagged Feedforward Network (TLFN), which combines conventional network topology (multilayer perceptron) with good handling of time dependencies by means of gamma memory. This is a versatile mechanism that generalizes the short term structures of memory, based on delays and recurrences. This scheme allows smaller adjustments without requiring changes in the general network structure. The neural model gave satisfactory results exceeding those obtained by classical statistical models like multiple linear regression.
The Challenge of Designing Nervous and Endocrine Systems in Robots
Authors: Córdova Felisa M. , Cañete Lucio R.
Published: January 2016

We discuss in conceptual terms the feasibility of designing a Nervous System and an Endocrine System in a robot and to reflect upon the bionic issues associated with such highly complex automatons. The emulation of biological phenomenon in artificial systems, both nervous and endocrine imitation in a mechatronic automaton is an attractive proposition as a mechanism of organic integration. The ability of living organisms to maintain their internal organization in spite of external changes, encourages attempts to imitate such achievements in devices. The complexity of the network sensors-integrators-effectors and the proportion of internal fluids must be increased when seeking the homeostasis of the robot from mechatronic design to bionic design.
Importance of Flexibility in Manufacturing Systems
Authors: Kaschel C. Héctor , Y Bernal Luis Manuel Sánchez
Published: January 2016

Flexibility refers to the ability of a manufacturing system to respond cost effectively and rapidly to changing production needs and requirements. This capability is becoming increasingly important for the design and operation of manufacturing systems, as these systems do operate in highly variable and unpredictable environments.
 It is important to system designers and managers to know of different levels of flexibility and / or determine the amount of flexibility required to achieve a certain level of performance. This paper shows several representations schemes for product flexibility and discusses the usefulness and limitations of each.
Solution to the Reliability Problem of Radial Electric Distribution Systems Through Artificial Intelligence
Authors: López E. , Campos J. , Tardon C. , Salgado F. , Tardon J. , López R.
Published: January 2016

In this paper the distribution electric system reliability is recognized like an artificial intelligence problem. How this idea is applied in evaluation of reliability is detailed. Concepts as Intelligence Matrix and Inter-feeder Route are defined. From the last one a reliability prediction strategy for medium voltage networks is proposed and tested.
From Algorithms to (Sub-)Symbolic Inferences in Multi-Agent Systems
Authors: Bărbat Boldur E. , Negulescu Sorin C.
Published: January 2016

Extending metaphorically the Moisilean idea of “nuanced-reasoning logic” and adapting it to the e-world age of Information Technology (IT), the paper aims at showing that new logics, already useful in modern software engineering, become necessary mainly for Multi-Agent Systems (MAS), despite obvious adversities. The first sections are typical for a position paper, defending such logics from an anthropocentric perspective. Through this sieve, Section 4 outlines the features asked for by the paradigm of computing as intelligent interaction, based on “nuances of nuanced-reasoning”, that should be reflected by agent logics. To keep the approach credible, Section 5 illustrates how quantifiable synergy can be reached - even in advanced challenging domains, such as stigmergic coordination - by injecting symbolic reasoning in systems based on sub-symbolic “emergent synthesis”. Since for future work too the preferred logics are doxastic, the conclusions could be structured in line with the well-known agent architecture: Beliefs, Desires, Intentions.
Multiobjective Optimization Scheduling Problems by Pareto-optimality in Agro-alimentaryWorkshop
Authors: Tangour Fatma , Saad Ihsen
Published: January 2016

This paper deals with the multiobjective optimization problem of an agroalimentary production workshop. Three criteria are considered in addition to this initial cost of production: the cost of the out-of-date products, the cost of the distribution discount and the makespan, and a new coding is proposed for this type of workshop. The adopted approach consists in generating optimal solutions diversified in the search space of solutions, and to help the decision maker when it cannot give a particular preference to one of the objective functions to make the good decision with respect to the quoted criteria.
Cognitive Impairment in Multiple Sclerosis
Authors: Santos Telma , Pinheiro Joaquim , Barros Pedro ,   Neurology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal,   Neurology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal,   Neurology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
Published: January 2016

Multiple sclerosis (MS) is a chronic inflammatory demyelinating disorder of the central nervous system. Although MS has been known since the 19th century, cognitive impairment (CI) was only recognised as an important feature of MS over the past 30 years. The reason is that, until recently, MS was perceived exclusively as a white matter disease, and cognition was thought to depend solely on the cortex. This article aims to review the prevalence, risk factors, profile and diagnosis of CI in MS. Imaging correlates and treatment will also be briefly discussed.
Optimising Epilepsy Therapy – Searching for the Evidence – Looking Beyond the Data
Authors: Carreño Mar , Trinka Eugen , Holtkamp Martin ,   Clinical Institute of Neurosciences, Epilepsy Unit, Hospital Clinic of Barcelona, Barcelona, Spain,   Department of Neurology, Christian Doppler Medical Centre, Paracelsus Medical University, Austria; Centre for Cognitive Neuroscience, Austria,   Epilepsy-Center Berlin-Brandenburg, Department of Neurology, Charité – Universitätsmedizin Berlin, Germany
Published: January 2016

There is now an extensive range of anti-epileptic drugs (AEDs) available including older established treatments and a newer generation of medications. The choice of drugs and what constitutes optimal therapy, however, is unclear due to limitations in the data supporting their use, particularly among the newer treatments. In clinical trials of monotherapy, a treatment is required to show only non-inferiority to another benchmark treatment. In trials of polytherapy, comparisons are limited to placebo. It is therefore necessary to look beyond the study data and consider other parameters to ascertain the most suitable treatment for the individual patient. Available evidence suggests that efficacy is similar among most AEDs, but this does not mean they are all the same. Some show efficacy in early and refractory epilepsy and some improve depression and quality of life (QOL) in epilepsy. AEDs are associated with a range of adverse events (AEs) that can limit their usefulness. AE classifications include type A (augmented and dose related) including tiredness, fatigue, insomnia, dizziness, vertigo, imbalance, ataxia, tremor and cognitive impairment; type B (bizarre and idiosyncratic) including various hypersensitivity reactions; type C (chronic long-term toxicity) including hirsutism, alopecia, weight gain and obesity; and type D (teratogenesis and carcinogenesis). The newer AEDs have been more thoroughly assessed for AEs than older drugs and risks are better understood. In AED safety, it is not better to follow a policy of ‘better the devil you know’ but rather to carefully monitor AE incidence and be prepared to switch drugs to improve tolerability and avoid non-compliance and treatment failure.
Treating Drug-resistant Epilepsy – Why are we Waiting?
Authors: Boon Paul , Ryvlin Philippe , Wheless James W , Kawai Kensuke ,   Department of Neurology, Institute for Neuroscience, Ghent University, Belgium,   Department of Clinical Neurosciences, CHUV, Lausanne, Switzerland and Institute for Epilepsies (IDEE), Lyon, France,   University of Tennessee, Health Science Center, and Le Bonheur Children’s Hospital, Memphis, Tennessee, US,   Department of Neurosurgery, Epilepsy Center and Stroke Center NTT Medical Center Tokyo, Japan
Published: January 2016

Drug-resistant epilepsy (DRE) has been defined by the ad hoc Task Force of the International League Against Epilepsy (ILAE) Commission on Therapeutic Strategies as the failure of two appropriately chosen and tolerated anti-epileptic drugs (AEDs) (whether as monotherapy or in combination) to control seizures when used for an adequate period of time. The difference between the number of patients with DRE and the number of these patients who do not get access to adequate treatment is defined as the ‘treatment gap’, which is considered to be substantial. There are multiple possible causes that underlie the treatment gap in DRE: economic costs, natural history of epilepsy, deficiencies in health service provision, social stigma and other as yet unidentified causes. Factors affecting quality of life in DRE include depression and anxiety, raised risk of mortality and morbidity, increased healthcare utilisation and increased risk of adverse events with long- term use of AEDs, cognitive and memory impairment, seizure-related injuries, impaired ability to achieve educational and vocational goals, to drive, establish families and benefit from social relationships. Among the reasons for the greater risk of premature death are the raised risk of suicide in those patients with comorbid psychiatric disease and the increased incidence of sudden unexpected death among those with epilepsy. Managing epilepsy well involves more than just seizure reduction and when freedom from seizures cannot be achieved, addressing quality of life is likely to be more beneficial than interventions aimed at seizure reduction alone. Options exist for patients with DRE who are not candidates for epilepsy surgery, including dietary treatments, further attempts with AEDs and non-pharmacological interventions with devices. Further, non-invasive modalities are emerging, creating a more hopeful picture that the treatment gap for patients with DRE may be narrowed or even closed.
Long-term Cognitive Impairment after Critical Illness – Definition, Incidence, Pathophysiology and Hypothesis of Neurotrophic Treatment
Authors: Previgliano Ignacio J , Andres Bader , Ciesielczyk Pawel J ,   Head, Intensive Care Division, Hospital Fernandez, Buenos Aires, Argentina; Professor of Neurology, Maimonides University, Buenos Aires, Argentina,   Resident, ICU Division, Hospital Fernandez, Buenos Aires, Argentina,   Medical Division, EVER Neuro Pharma GmbH, Unterach, Austria
Published: January 2016

Cognitive impairment after critical illness (CIACI) is a frequent consequence of serious disease or injury that has been reported in as many as 66 % of patients, 3 months after an illness requiring intensive care unit hospitalisation. The condition has been recognised only within the past 15 years and its pathological mechanisms are, as yet, incompletely understood. The neurological changes and cellular and inflammatory processes of CIACI overlap with those of stroke, traumatic brain injury and neurodegenerative disorders. Patients also show brain atrophy, which worsens with the duration of intensive care unit stay. Risk factors associated with CIACI include depression, biomarkers of Alzheimer’s disease (e.g. apolipoprotein E), delirium, exposure to some drugs (e.g. fentanyl, morphine and propofol) and intubation. Current strategies to prevent or treat CIACI include treatments to reduce agitation and delirium and physical and mental rehabilitation including cognitive therapy. Many brain diseases and injuries affect the functioning of the neurovascular unit (NVU), which constitutes the key cellular building block of the blood–brain barrier (BBB). CIACI is believed to affect the integrity of the NVU and it is among the potential targets for therapy. Neurotrophic factors (NTFs), such as brain-derived neurotrophic factor (BDNF) are known to play an important role in neurogenesis, maintenance of NVU structure and neuronal repair after disease and injury. This led to the development of strategies including the NTF-preparation (Cerebrolysin®), which is effective as a post-stroke therapy and has potential in the treatment of Alzheimer’s disease and brain injury as well as CIACI. There are currently no proven treatments for CIACI; improved understanding of the condition and further evaluation of NTFs may lead to effective treatments, which are vital to tackle this increasingly serious public health problem.
Resumos de Dissertações de Mestrado em Geologia-IGC/UFMG - 2004
Authors: UFMG IGC -
Published: January 2016

_
QUÍMICA MINERAL EM GRANADA DE DIFERENTES NÍVEIS CRUSTAIS
Authors: Piuzana Danielle , Castañeda Cristiane , Pimentel Márcio Martins , Fuck Reinhardt A. , Soares Willian T.
Published: January 2016

Padrões cristaloquímicos em granadas, geradas durante a orogenia Brasiliana em diferentes grausmetamórficos, foram investigadas neste trabalho. Quatro tipos de rochas contendo granada foramselecionados: granulito de ultra-alta temperatura, granito granulitizado, paragranulito e cianita-granadamuscovitaxisto. Proporções moleculares indicam variações significativas nos conteúdos de Fe e Mg epequenas variações do Ca e Mn. Todos cristais de granada analisados pertencem à série almandinapiropo. Granada do mica xisto apresenta maior quantidade (%) de moléculas de Fe(alm76py15gro6sp2) seguidas por granada de granito granulitizado (alm69-66py20-26gro6-9sp2-3), paragranulito(alm62-52py42-32gro4-6sp1-2) e granulito de ultra-alta temperatura (alm63py23gro13sp1).Em todos cristais as bordas de granada possuem maior conteúdo de Fe que os núcleos. Mg e Ca possuem relação inversa ao Fe em granada do granulito de ultra-alta temperatura, mostrandoempobrecimento daqueles elementos em direção às bordas do cristal. Cristais de granada do granulito deultra-alta temperatura e de granito granulitizado possuem idades isocrônicas Sm-Nd mais antigas (625-633 Ma) e maiores valores de Mg/(Mg+Fe). Granada de paragranulito possui idade isocrônica Sm-Nd de606 Ma e maiores valores de Ca/(Ca+Mg). A dispersão parece indicar que o sistema isotópico da granadade paragranulitos permaneceu aberto por mais tempo devido a reações retrometamórficas ou evento deformacional. ABSTRACT: Crystallochemical standards of garnet from rocks in different metamorphic grades generated duringthe Brasiliano Orogeny were investigated. Four kinds of rocks containing garnet were selected: ultrahightemperature granulite, granulitized granites, paragranulites and kyanite-garnet-muscovite schist.End-member calculations indicate significant variations in Fe and Mg contents, and little variation in Caand Mn. All analyzed garnet samples belong to the almandine-pyrope series. Garnet from micaschistpresents the highest amount (%) of Fe molecules (alm76py15gro6sp2), followed by garnet of granulitizedgranites (alm69-66py20-26gro6-9sp2-3), paragranulites (alm62-52py42-32gro4-6sp1-2) and UHT granulite(alm63py23gro13sp1).In all analysed garnet grains rims have higher iron content than cores. Mg and Ca contents in UHTgranulite garnet present a negative correlation with Fe, showing gradual decrease of these elementstowards the crystal rim. On the other hand, in granulitized granites, Ca and Mg remain constantthroughout the crystal. Garnet crystals of UHT granulite and granulitized granites, which have the oldestSm-Nd isochron ages (633-625 Ma), display the highest values of Mg/(Mg+Fe). Garnet from paragranulite,with Sm-Nd isochron age of 606 Ma, presents high values of Ca/(Ca+Mg). The dispersion seems toindicate that the isotopic system garnet in samples of paragranulite was opened due to retrometamorphicand/or deformational events.
O “CERTIFICADO DO PROCESSO DE KIMBERLEY": PROPOSTA PARA SUBSIDIAR SUA IMPLEMENTAÇÃO EM BASES CIENTIFICAS.
Authors: Chaves Mario Luiz de Sá C. , Benitez Leila
Published: January 2016

Na última década, ganhou força a nível internacional manifestação destinada a reconhecer a origemdos diamantes no comércio varejista, de modo com que se evitasse a compra de pedras produzidas depaíses africanos em estado de guerra civil. Essa campanha levou à implementação do “Certificado doProcesso de Kimberley”, emitido por países produtores de diamantes, incluindo-se o Brasil. Entretanto,junto com a aceitação geral de tal certificado, diversos estudos têm procurado definir parâmetros deconferência de que os mesmos seriam eficazes. No decorrer desses acontecimentos, diversos doscertificados brasileiros foram colocados em dúvida, com a possibilidade de inclusão de diamantesprovenientes de outros países nos lotes, permitindo assim, em princípio, a inclusão de pedras de paísesbeligerantes. Os estudos realizados sobre lotes de diamantes das principais áreas produtoras de MinasGerais, têm demonstrado que é plenamente possível identificar a proveniência de lotes representativosde diferentes áreas, através da definição de parâmetros básicos que, integrados e tratados estatisticamente,podem fornecer uma assinatura típica para cada uma delas.Palavras-chave: diamante, mercado internacional, Certificado Kimberley. ABSTRACT:In the last decade, the international market happened a great worldwide manifestation which objectiveto recognize the origin of the diamonds in the retail trade, with the purpose to restrict the acquisitionof stones from African countries in civil war state. This campaign led the implementation of the“Certificate of the Process of Kimberley”, emitted for producing diamond countries, including Brazil.However, together with the general acceptance of such certificate, several studies have looked fordefining conference parameters of that the same ones would be efficient. In elapsing of these events,some of the brazilian certificates it had been placed in doubt, with the possibility of inclusion ofdiamonds proceeding from other countries in these lots, thus allowing, in principle, the inclusion ofstones from belligerent countries. The studies carried through on lots of diamonds of the mainproducing areas of Minas Gerais, have demonstrated that it is fully possible to identify the provenance of representative lots of different areas. In this way, through the definition of basic parametersintegrated and treated by statistic manner, can supply a typical signature to each one of thesedeposits.Keywords: diamond, international market, Kimberley Certificate.
COMPARAÇÃO DA CONCENTRAÇÃO DE METAIS PESADOS NAS ÁGUAS DO RIO SÃO FRANCISCO EM TRÊS MARIAS, DESDE 1991 ATÉ HOJE, RELACIONANDO A ATUAÇÃO DA CMM-TRÊS MARIAS.
Authors: Oliveira Mara Regina de , Horn Adolf Heinrich
Published: January 2016

The aim was to evaluate some heavy metals contamination level (Zn, Cd, Pb) and water PH on SãoFrancisco river in Tres Marias, between the CEMIG dam and Barra do Retiro Velho, an area underCMM (Companhia Mineira de Metais) influence, comparing concentration values in 1991 and 2003/2006. Sample waters were collected from some places once contaminated by CMM – CompanhiaMineira de Metais, which, for years, since it begins operating in 1969, threw all industrial efluents innatura in São Francisco River. In 1991 Fachoschule München students researched the CMM surroundingarea and found high values of heavy metals on water. Water sampling followed Standard Methods forthe Water and Wastewater (APHA 1992) and Sample waters Collect and Preservation Guide fromCETESB (1988) and were performed in 4 sampling campaigns. Metals contents were analised byICP-AES on IGC/UFMG Research Centre and conductivity and PH were measured in situ by Digimed,DM 20 device. ZN concentraction leval was above legal level on sample points took in waters ofBarreiro Grande brook and São Francisco river, soon after the water returning point, on left bank andon Consciência brook confluence, which value is 25 times higher than the limit established byCONAMA 357. In comparison with sampled points in 1991, we had then much more elevated values,because CMM does not take care about its effluents deposition. ZN, Cd and Pb had high concentrationson CMM influence area, on the river right bank, this means, in points that receive direct effluentsfrom CMM, and more distant points on the same bank, showing that these metals are carried insoluble form, before precipitating with sediment. After Consciência brook, Zn level graduallydiminishes. One can conclude that CMM’s use of a more appropriate effluent treatment led to a levelreduction of these metals on superficial waters, what is indicated by data interpretation. Nevertheless,we must remember that metals on sediments are still present on the area, as it precipitate amongorganic matter, clay minerals and Fe and Mn oxids and hydroxids, and can suffer ressobilization towater form with changing of physical-chemical water conditions – PH changes, for instance.
MINERAIS DE COLEÇÃO: CIÊNCIA, ESTÉTICA E MERCADO
Authors: Menezes Filho Luiz Alberto Dias , Chaves Mario Luiz de Sá Carneiro
Published: January 2016

algumas centenas no Brasil. O comércio desses minerais movimenta por ano algumas dezenas de milhões dedólares, proporcionando renda e condições de subsistência a regiões pobres do Brasil e de outros países. Essemercado também incentiva a produção em pequenos depósitos minerais e isso tem permitido a descoberta e apreservação de novas espécies minerais que de outra forma permaneceriam desconhecidas. O Brasil é um dosmaiores produtores mundiais de minerais para coleção, entretanto quase que exclusivamente provenientes deatividades de garimpagem. O riquíssimo patrimônio mineralógico contido em jazidas de grandes mineraçõesindustriais tem sido perdido, devido ao desinteresse de tais empresas e seus corpos técnicos em estudar amineralogia dessas jazidas.Palavras-chave: minerais, coleções, exploração mineral. ABSTRACT: The hobby of mineral collecting has millions of adepts all over the world, but only few hundreds in Brazil.The trade of these minerals amount annually some tens of millions of dollars, providing monetary incentiveto poor regions in Brazil and in other countries. Such market incentives the exploitation of small mineraldeposits and has allowed the discovery and preservation of new mineral species. Brazil is a major producerof minerals for collections, however mostly from the small “garimpo’s” services. The very rich mineralogicalpatrimony from the ore deposits subject to industrial mining has been lost due the lack of interest from thebig companies and their technical staffs to study the mineralogy of these deposits.Keywords: minerals, collections, mineral exploration.
RESUMO DAS TESES E DISSERTAÇÕES DE PÓS-GRADUAÇÃO DO IGC/UFMG
Authors: UFMG IGC -
Published: January 2016

_
DELINEAMENTO SEMI-DETALHADO DE SOLOS EMPREGANDO AEROFOTOS NÃO-CONVENCIONAIS NA SUB-BACIA PALMITAL - RIO TURVOSUJO, MG
Authors: Fernandes Marcus Manoel , Ker João Carlos , Rezende Sérvulo Batista de
Published: January 2016

Com o objetivo de caracterizar os solos da sub-bacia Palmital e testar aerofotos não-convencionais foramdescritos e coletados perfis e amostras extras de solos, além da obtenção das aerofotos. As amostras foramsubmetidas a análises física, químicas e mineralógica. As classes de solos são: Latossolos Vermelho-Amarelos Distróficos (interflúvios tabulares, topos das elevações e encostas côncavas), LatossolosAmarelos Distróficos (vertente convexa), Cambissolos Háplicos Tb Distróficos latossólicos (conformaçãoíngreme), Argissolos Vermelho-Amarelos Eutróficos (terraço), Argissolos Vermelho-Amarelos Eutróficos+ Cambissolos Háplicos Tb Distróficos latossólicos (rampas coluviais) e Latossolos Vermelho-AmarelosDistróficos + Cambissolos Háplicos Tb Distróficos latossólicos + Latossolos Amarelos Distróficos(vertentes ravinadas). A maioria dos solos é de baixa fertilidade natural, apresentam teores de basestrocáveis e CTC muito baixos, pH ácido e alta saturação de alumínio. Os difratogramas de Raios-Xindicam uma grande similaridade de composição mineralógica; caulinita, goethita e gibbsita estão semprepresentes. As aerofotos não-convencionais apresentaram excelente nitidez e efeito estereoscópico econtribuíram sobremaneira na identificação das unidades para o delineamento semi-detalhado dos solos.Palavras-chave: solos, aerofotos não-convencionais, sub-bacia.ABSTRACT: In order to characterize the soils of the sub-basin Palmital and test airphotos non-conventional were describedsoil profiles and extra samples, besides the obtainance of airphotos. The samples were physically, chemistryand mineralogically analysed. The soils classes are: Distrophics Red Yellow Latosols (small plateaux,summits and concave slopes), Distrophics Yellow Latosols (convexe slopes), Distrophic Latosol Cambic(on steep slopes), Eutrophic Red Yellow Podzolic + Distrophic Latosol Cambic (accumulation glacis) andDistrophics Red Yellow Latosols + Distrophic Latosol Cambic + Distrophics Yellow Latosols (dissectedslopes). The most of the soils are of low natural fertility, presenting available exchanges base and CEC(cation exchange capacity) very lows, acid pH and high alluminum saturation. The X-rays diffractogramsindicate a great similarity of mineralogy composition; caolinite, goethite and gibbsite are always present.The non-conventional airphotos revealed to be of excellent clearness and stereoscopic effect and had goodcontribution in the identification of units for half-detailed mapping soil.Keywords: soils, non-conventional airphotos, sub-basin.
UTILIZAÇÃO DE SIG NOS ESTUDOS AMBIENTAIS DO ESTUÁRIO DO RIO ACARAÚ/CEARÁ
Authors: Araújo Maria Valdirene , Freire George Satander Sá
Published: January 2016

A Bacia do Acaraú está localizada a oeste da capital cearense e compreende uma área de 14.500Km²sendo considerada a segunda maior bacia hidrográfica do Ceará. A área da pesquisa compreendeu aregião do estuário do rio Acaraú com 80Km², abrangendo o município de Acaraú e Cruz a oeste. Apesquisa teve como objetivos analisar as condições geoambientais, analisar o processo de uso e ocupaçãoe os impactos ambientais, bem como levar uma conscientização à população residente na área e deconservar os recursos da natureza de maneira sustentável de forma a garantir para as gerações futuras.Como metodologia foram utilizadas bibliografias pertinentes à área, fotografias e imagens de satélitesmultitemporais e com boa resolução como as imagens do Quickbird e também imagens Landsat. Asatividades de geoprocessamento envolveram o processamento digital de imagens de sensoriamentoremoto e a integração de dados em estrutura de SIG (Sistema de Informação Geográfica). Os resultadosobtidos foram; a poluição do rio, a degradação do manguezal devido à expansão da carcinicultura, ocrescimento urbano da cidade de Acaraú e como forma de diminuir os impactos foi sugerida a criação deuma Área de Proteção Ambiental e um programa intensivo de educação ambiental com a população local.Palavras-chave: Análise ambiental, manguezal, estuário. ABSTRACT: The Acaraú basin is located to west of the capital from Ceará and it understands an area of 14.500Km² beingconsidered the second largest Ceará basin. The area the research understood the area the estuary of the Acaraúriver 80Km², embracing the munipality of Acaraú and Cruz in the west. The research has for objectives to analyzethe geo- environmental conditions, to analyze the use process and occupation and the environmental impacts, aswell as to take an understanding to the resident population in the area and of conserving the resources of naturein maintainable way to guarantee for the next generations. As methodology were used pertinent bibliographiesto the subject, pictures and of satellites images and with good resolution as the images of Quickbird and alsoLandsat images. The geo-processing activities involved images digital processing of remote sensing and theintegration of data in structure of SIG (System of Geographical Information). The obtained results were;the pollution of the river, the degradation of the growth of mangroves due to expansion of the shrimp farm,the urban growth of the city of Acaraú and as form of reducing the impacts was suggested the creation of anEnvironmental Protection Area and an intensive program of environmental education with the local population.Keywords: Environmental analysis, mangroves, estuary.
ESTRATIGRAFIA E EVOLUÇÃO GEOMORFOLÓGICA DO GRUPO BAMBUÍ NA REGIÃO DE MORRO DA GARÇA (MG)
Authors: Chaves Mario Luiz de Sá C. , Benitez Leila , Andrade Kerley Wanderson , Queiroga Gláucia Nascimento
Published: January 2016

O Morro da Garça encontra-se no município homônimo, localizado no centro geodésico do Estado de MinasGerais. Esse morro constitui uma feição geomorfológica circular ressaltada na planura do cerrado, e quetem servido ao longo dos últimos séculos como guia de referência para os viajantes. Em termos geológicos,tal região é coberta por litotipos do Grupo Bambuí, datados no Neoproterozóico. Na parte mais arrasadado relevo, predominam as formações Lagoa do Jacaré e Serra da Saudade, com as camadas dispostassub-horizontalmente. No morro em si, um levantamento de detalhe permitiu reconhecer uma seqüênciapelito-arenosa que define uma transição entre as formações Serra da Saudade e Três Marias. O topo domorro é sustentado por cerca de 60 m de metarenitos impuros da Formação Três Marias, no cume bastanterecristalizados. Comparações de ordem petrográfica dessas rochas, com as que ocorrem na região de Pirapora,uma das seções-tipo da Formação Três Marias, comprovam tal correlação. Esta situação geológica peculiarpermitiu que o morro da Garça fosse preservado como um testemunho na paisagem regional.Palavras-chaves: Morro da Garça; Grupo Bambuí; Estratigrafia; Evolução geomorfológica. ABSTRACT: The Garça´s hill is located in the Morro da Garça county, on the geodesic center of Minas Gerais State.It is a geomorphological circular feature salient on the plain of the savanna, that has been used in the lastcenturies as a reference guide to the travelers. Concerning on the geological aspects, this region is coveredby the Bambuí Group rocks, of Neoproterozoic age. In the most eroded part of the relief, occurs the Lagoado Jacaré and the Serra da Saudade formations (undivided), with sub-horizontal layers. A detail survey inthe hill allowed to recognizing a pelite-carbonatic sequence that determines a transition between the Serrada Saudade and Três Marias formations. The highest part of the hill is supported by about 60 m of the TrêsMarias Formation, that consists of a cristallized and impure sandstone in the peak. Petrographic comparisonsof these rocks with others that occur in the Pirapora region, where is located a type section of the Três MariasFormation, prove such correlation. This peculiar geological situation conditioned the preservation of theGarça’s hill as a butte in the regional landscape.Keywords: Garça’s hill; Bambui Group; Stratigraphy; Geomorphological evolution.
ANÁLISE SISTÊMICA DA EXPLORAÇÃO MINERAL E O SEU CONTEXTO SÓCIOECONÔMICO NO MÉDIO JEQUITINHONHA, MG
Authors: Pinho-Tavares Sergio Túlio de , Castañeda Cristiane , Pedrosa-Soares Antônio Carlos
Published: January 2016

A análise sistêmica da exploração de minerais pegmatíticos, tanto de coleção, como industriais quanto osgemológicos, aponta quatro variáveis interligadas entre si. No aspecto social, as relações de trabalho nogarimpo são fundamentadas na participação nos lucros de uma produção normalmente instável e que nãogarante renda fixa ao garimpeiro. No âmbito econômico, ressalta-se o cenário de corrupções e fraudes queenvolvem a saída dos minerais gemas dos garimpos. No ponto de vista ambiental, a disposição inadequadadas pilhas de rejeito que vêm acelerando o assoreamento dos cursos d’água da região. No critério políticoambientalobserva-se uma população caracterizada pela pobreza uma vez que a atividade garimpeira não geranenhum benefício para a comunidade. Uma nova postura da atividade garimpeira, propiciando a produçãoconcomitante de minerais industriais e de minerais gemas, representa uma medida mitigatória para atenuaros problemas apontados por essas variáveis.Palavras-chave: atividade garimpeira, minerais industriais, minerais gemasABSTRACT: The systemic analysis of the exploration of pegmatitic minerals, for collections, gems or industrials, indicatesfour interlinked variables. In the social aspect, the diggings work relationships are usually based in the profitsharing of an unstable production and that doesn’t guarantee fixed salary to the prospector. In the economicalambit, it is pointed out the scenery of corruptions and frauds that involve the exit of the gems of digging. Inthe environmental aspect, the inadequate dispositions of the reject piles are accelerating by the wearing downof the rivers in that area. In the politic-environmental criterion, it is observed a population characterized bythe poverty because the dig ging (garimpo as Brasilian popular name) doesn’t generate any benefit for thecommunity. A new posture of the digging, providing the production of industrial minerals associated with thegem-minerals exploration represents a necessary step to lessen the exposed problems for those variables.Keywords: digging, industrial minerals, gem-minerals
DIAGNÓSTICO DO MEIO FÍSICO DA BACIA HIDROGRÁFICA DO RIO CONGONHAS, MG
Authors: Sallun Alethéa Ernandes Martins , Sallun Filho William , Karmann Ivo
Published: January 2016

Para o diagnóstico ambiental do meio físico na Bacia Hidrográfica do Rio Congonhas (MG) realizaram-seestudos geológico, geomorfológico e hidrogeológico para a caracterização sob o ponto de vista ambiental.A região enfrenta muitos problemas relacionados a falta d’água, onde é elevado o índice de insucesso naperfuração de poços tubulares profundos, devido ao clima desfavorável, solos ausentes e/ou delgados e anatureza fissural da maior parte dos aqüíferos. Com a implantação da Barragem Congonhas, haverá aumentoda disponibilidade hídrica na região e poderão surgir problemas ambientais devido a atividade antrópica.Não foram identificados pontos de degradação ambiental atuantes na bacia estudada, e os dados obtidosforneceram subsídios para o zoneamento ambiental e desenvolvimento sustentável. Propõe-se ações deeducação ambiental voltadas a conscientização da população local, que pode ser atuante na identificação eprevenção de fatores degradantes que proporcionam impactos ambientais.Palavras-chave: geologia, geomorfologia, hidrogeologia, Rio Congonhas Abstract: For the diagnosis of the physical environment of the Congonhas River Hydrographic Basin (Minas GeraisState), geological, geomorphological and hydrogeological studies were realized in order to environmentalcharacterization. The region faces many problems of lack of water, with high rate of failure in the drillingof wells, due to unfavorable weather, absence and/or thin soil and fissural nature of most aquifers. With theimplanting of the Congonhas dam, there will be increased water availability in the region and environmentalproblems may arise due to human activity. Were not identified points of environmental degradation acting inthe studied basin and the information obtained provided data for the environmental zoning and sustainabledevelopment. It proposes actions for environmental education focused on awareness of local people, whocan be active in the identification and prevention of factors of degradation that provide environmentalimpacts.Keywords: geology, geomorphology, hidrogeology, Rio Congonhas
GEOLOGIA E A REDISTRIBUIÇÃO SEDIMENTAR PÓS-CRETÁCICA DOS DEPÓSITOS DIAMANTÍFEROS DA REGIÃO AO SUL DE COROMANDEL (MG)
Authors: Andrade Kerley Wanderson , Chaves Mario Luiz de Sá Carneiro
Published: January 2016

A região do Rio Douradinho ao sul de Coromandel apresenta períodos distintos em sua evoluçãotectônica. A fase mais antiga corresponde à sedimentação das tectonossequências meso e neoproterozóicasrepresentadas pelos grupos Canastra, Ibiá e Araxá. Essas unidades compreendem a Faixa de DobramentosBrasília, estruturada durante o Ciclo Brasiliano, estabelecendo seus contatos geológicos através de longasfalhas de empurrão e zonas de cisalhamento, com baixo grau metamórfico associado. Durante o “Soerguimentodo Alto Paranaíba”, no intervalo Jurássico – Cretáceo, reativaram-se antigas estruturas regionais, e essas linhasde fraqueza da crosta condicionaram a colocação de intenso magmatismo de afinidade ultrabásica-alcalina,expresso também por intrusões de quimismo kimberlítico ou relacionadas, e ainda por extensos depósitosclásticos e piroclásticos (Grupo Mata da Corda). No Cenozóico, novos processos atuantes sobre as mesmasestruturas proporcionaram intenso retrabalhamento dos depósitos pretéritos originando sedimentos detríticos fanglomeráticos e aluviais, onde se concentrou a maior parte da mineralização diamantífera. É importanteainda ressaltar a relevância dos depósitos rudíticos fanglomeráticos, que constituem os principais alvos das atividades mineradoras e garimpeiras locais.ABSTRACT: The Douradinho River region, at south of Coromandel town, presents a tectonic evolution in differentevents. The older event is characterized by sedimentation of mesoproterozoic and neoproterozoictectonosequences, related to Canastra, Ibiá and Araxá groups. These units compose the BrasíliaFold Belt, which was structured during the orogenic Brasiliano Cycle, and show their geologiccontacts as thrust faults and shear zones, with associated lower metamorphic grade. An uplift eventin Jurassic-Cretaceous age evolved the “Alto Paranaíba Uplift”, through the reactivation of olderregional structures reactivation. Such weakness structures they had conditioned the emplacementof intense phase ultrabasic-alkaline of magmatic intrusions, as well as other intrusions of kimberliticor related affinity and extensive clastic and piroclastic deposits (Mata da Corda Group). In Cenozoicage, new processes acting in same structures allowed the reworking of older deposits and causedthe formation of detritic fanglomerate and alluvial deposits, where was concentrated the mostpart of diamond mineralization. It is also important to emphasize the relevance of these ruditic,fanglomerate deposits, that constitute the main focus of the mining and “garimpo” activities.
RESUMO DAS TESES E DISSERTAÇÕES DEFENDIDAS EM 2009 NO PROGRAMA DE PÓS-GRADUAÇÃO EM GEOLOGIA DA UFMG
Authors: UFMG IGC -
Published: January 2016

_
AVALIAÇÃO PRELIMINAR DAS CONDIÇÕES HIDROGEOLÓGICAS NA ÁREA DO MUNICÍPIO DE OURO PRETO, MG.
Authors: Ferreira Quênia de Cássia Goulart , Bacellar Luis de Almeida Prado
Published: January 2016

O conhecimento da dinâmica natural e da qualidade das águas subterrâneas no município de Ouro Preto éainda deficiente. Em vista disto, foi elaborado um banco de dados hidrogeológicos com o intuito de avaliarde forma preliminar o potencial hídrico subterrâneo desta área. A análise e tratamento dos dados secundáriose primários obtidos permitiu a identificação de oito sistemas aqüíferos. O sistema do Grupo Itabira, ondese encontram as formações ferríferas da Formação Cauê, é o de maior potencial. Os sistemas em rochasdo embasamento cristalino destacam-se pelo maior número de poços tubulares cadastrados. Análises deparâmetros físico-químicos e de elementos inorgânicos na água subterrânea revelaram que a maioria apresentaconcentrações inferiores aos máximos permitidos pela legislação para água potável. Contudo, como o sistemade proteção sanitária dos poços se mostrou muitas vezes inadequado, é possível que haja alguma contaminaçãopor elementos ou compostos não analisados e que deverão ser futuramente investigados.Palavras-chaves: hidrogeologia, sistemas aqüíferos, hidroquímica, Ouro Preto. ABSTRACT: The knowledge of physical and chemical conditions of groundwater in the city of Ouro Preto is still deficient.Therefore, in this paper a hydrogeological database was made, in order to estimate the groundwater potentialof the area. The analysis and processing of secondary and primary data allowed the identification of eightaquifer systems. The aquifer system of the Itabira Group, with iron formations, was considered the best,while the crystalline basement system has the highest number of registered wells. Analysis of physicalchemicalparameters and inorganic elements in groundwater has revealed that most concentrations are belowthe maximum allowed by law for drinking water. owever, the sanitary protection of the wells is frequentlyinadequate and there are ossibly other contaminants, which should be further investigated.Keywords: hydrogeology, aquifer systems, hydrochemistry, Ouro Preto.
GEOLOGIA E MINERALOGIA DO KIMBERLITO GROTA DO CEDRO (COROMANDEL, MG)
Authors: Andrade Kerley Wanderson , Chaves Mario Luiz de Sá Carneiro
Published: January 2016

Centenas de intrusões kimberlíticas e de rochas relacionadas são conhecidas na região de Coromandel (MG), abrangendo a designada “Província Diamantífera Alto Paranaíba”, embora o conhecimento sobre essas rochas ainda seja escasso. Entre essas intrusões, ressalta-se o kimberlito Grota do Cedro, que afora na drenagem homônima ao sul de Coromandel (MG), encaixada em micaxistos do Grupo Araxá (Neoproterozóico). O corpo apresenta forma superficial aproximadamente elíptica com cerca de 350 x 300 m de eixos; sua composição química é similar a de outras da província e a química mineral do Cr-piropo revelou uma forte concentração nos campos “G9” e “G5”. Esses campos mineraloquímicos, em geral caracterizam intrusões pobres ou mesmo inférteis em diamantes.Palavras-chave: Kimberlito, Coromandel, Diamantes.ABSTRACT: GEOLOGY AND MINERALOGY OF THE GROTA DO CEDRO KIMBERLITE (COROMANDEL, MG). Hundreds of kimberlite intrusions and related rocks are known in the Coromandel region (MG), in the “Alto Paranaiba Diamondiferous Province”, although the knowledge of these rocks is still scarce. Among these intrusions, it emphasizes the Grota do Cedro kimberlite, which outcrops in the drainage of same name at south of Coromandel (MG), hosted in micaschists of the Araxá Group (Neoproterozoic). The body has a roughly elliptical surface shape with 350 and 300 m axis; its chemical composition is similar to others of the province, and mineral chemistry of Cr-pyrope shows a strong concentration in the “G9” and “G5” fields. These chemical fields generally characterize diamond-poor or infertile intrusions.Keywords: Kimberlite, Coromandel, Diamonds.
MAPEAMENTO GEOMORFOLÓGICO DA SERRA DO ESPINHAÇO MERIDIONAL: PRIMEIRA APROXIMAÇÃO
Authors: Augustin Cristina Helena Ribeiro Rocha , Fonseca Bráulio Magalhães , Rocha Leonardo Cristian
Published: January 2016

O mapeamento geomorfológico em escala regional constitui um importante instrumento na espacialização dos elementos morfoestruturais do relevo. Tais mapeamentos auxiliam de maneira ágil e direta na compreensão dos elementos bio-físicos envolvidos tanto na evolução do relevo, quanto na sua caracterização. Grandes cinturões orogenéticos, como a Serra do Espinhaço, representam um laboratório ideal para testar mapeamentos de escala regional, voltados para o estudo dos aspectos morfoestruturais da paisagem. O presente trabalho buscou aplicar novas tecnologias de mensuração e representação cartográfica das formas de relevo da Serra do Espinhaço Meridional (SdEM). Para isto foi desenvolvida, a partir da análise de dados primários e secundários, chave interpretativa para o mapeamento.Palavras-chave: mapeamento geomorfológico, Espinhaço Meridional, modelagem digital de elevação, análise geomorfológica, técnicas de geoprocessamento. ABSTRACT: GEOMORPHOLOGICAL MAPPING OF ESPINHAÇO MERIDIONAL MOUNTAIN RANGE: FIRST APPROXIMATION. Geomorphologic mapping in regional scale is an important instrument for spacializing the morphoestructural elements of landform. These mappings can also become an agile and straightforward tool for enabling the understanding of bio-physical elements involved in landscape evolution as well as their characterization. Extensive orogenetic belts such as the Espinhaço constitute an ideal laboratory for testing large scale mappings linked to the studies of morphoestructural aspects of the landscape. This paper aims to apply new cartographical technologies such as GIS using them for measurements and representation of the Serra do Espinhaço Meridional (SdEM), a mountain range located in Minas Gerais State, Brazil. Taking as reference primary and secondary data it was possible to develop an interpretation Key for the geomorphologic mapping.Keywords: geomorphologic mapping, Espinhaço Meridional, digital terrain modeling, geomorphologic analysis, geoprocessing techniques.
ROCHAS GRANULÍTICAS DA SUÍTE CAPARAÓ NA REGIÃO DO PICO DA BANDEIRA: EMBASAMENTO ORIENTAL DO ORÓGENO ARAÇUAÍ
Authors: Novo Tiago Amâncio , Noce Carlos Maurício , Pedrosa-Soares Antônio Carlos , Batista Gustavo Antonio Pereira
Published: January 2016

O Pico da Bandeira é o terceiro cume mais alto do Brasil com 2891,98 m de altitude. Localiza-se na Serra do Caparaó, divisa dos estados de Minas Gerais e Espírito Santo. Esta serra tem sido esculpida essencialmente sobre gnaisses e migmatitos de alto grau, ortoderivados, de composição diorítica a granítica, com encraves máficos, da Suíte Caparaó. Estruturalmente, a Serra do Caparaó configura uma lasca tectônica moldada em antiformal de proporções quilométricas, assimétrico, apertado, aproximadamente orientado segundo NNE-SSW, com o flanco oeste parcialmente invertido e charneira marcada por intensa migmatização. As poucas amostras analisadas sugerem rochas cálcio-alcalinas de médio a alto-K, um pouco enriquecidas em terras raras leves em relação a rochas similares do Complexo Juiz de Fora. A Suíte Caparaó, de idade riaciana (ca. 2,19 Ga), pode ser correlacionada ao Complexo Juiz de Fora e constitui uma porção do embasamento sudeste do Orógeno Araçuaí.Palavras-chave: Granulito, Suíte Caparaó, Orógeno Araçuaí ABSTRACT: GRANULITIC ROCKS FROM THE CAPARAÓ SUITE IN THE PICO DA BANDEIRA REGION: EASTERN BASEMENT OF THE ARAÇUAÍ OROGEN. In Brazil, the third highest mountain peak, with 2891.98 m high, is called Pico da Bandeira. It is located at Caparaó mountain ridge, along the boundary between Minas Gerais and Espírito Santo states. This ridge has been shaped on the orthoderived, dioritic to granitic, granulitic gneisses and migmatites with mafic enclaves of the Caparaó Suite. The regional structure of the Caparaó ridge is a folded thrust slice, forming a huge antiformal, asymmetric, tight fold roughly oriented to NNE-SSW, with the western limb partially inverted and the hinge marked by intense migmatization. The few analysed samples suggest medium to high-K calc-alkaline signatures, slightly enriched in light rare earth elements in relation to similar rocks of the Juiz de Fora Complex. The Caparaó Suite, Rhyacian in age (ca. 2.19 Ga), can be correlated to the Juiz de Fora Complex and forms part of the southeastern basement of the Araçuaí orogen.Keywords: Granulite, Caparaó Suite, Araçuaí orogen