50 research outputs found

    Avaliação do sistema de bombeamento e reservação como suporte para a melhoria de sistemas públicos de abastecimento de água na Amazônia / Evaluation of the pumping and reservation system as a support for improving public water supply systems in the Amazon

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    Para uma gestão eficiente em sistemas de abastecimento de água, diversos fatores são considerados, entre os principais estão as demandas energéticas, reservação, períodos de funcionamento e modelos tarifários. Assim, este trabalho objetivou avaliar os sistemas de bombeamento e reservação no setor de abastecimento de água Benjamin Sodré, em Belém (PA). Primeiramente, realizou-se o levantamento de informações dos sistemas de bombeamento operantes. Em seguida, constatou-se a viabilidade de implantação de medidas nos custos com energia elétrica, através de uma nova concepção de projeto, redimensionamento dos conjuntos motor-bomba e os volumes ideais de reservação. Ocorreram sub/superdimensionamentos nos diâmetros e no sistema de bombeamento, gerando consumos e custos desproporcionais, quando comparados aos reais potenciais gerados, e a reservação encontra-se subdimensionada. Os consumos pelo bombeamento no princípio e no final do estudo, diferiram em 80%. Com relação ao custo ideal, a diferença é de 90% do custo atual

    GRAVIMETRIA COMO FERRAMENTA DE GESTÃO AMBIENTAL EM UM MUNICÍPIO DA AMAZÔNIA

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    Gravimetry is an important information in the management of solid waste, as it assists in environmental monitoring, in understanding the process of decomposition of waste and in estimating the useful life of materials for recycling, data that are also crucial for the preparation of municipal solid waste plans. Thus, this article aimed to characterize the solid waste produced in the city of Soure, in Pará, to contribute to its solid waste management. The gravimetric characterization defined in NBR 10,004 of 2004 was used. It is noted, after gravimetry, that the largest generation of residues is concentrated in the tailings and organic matter materials, which represent 86.6% of a sample of 91.5 kg. The largest amount of recyclable material collected was 4.16 kg of colored PP film and the smallest of Tetra Pack material, with 0.21 kg. The monthly gain from recycling for each collector would be an average of R50.00and,therefore,itisessentialthatthegovernmentintervenesthroughthecooperative,supportingservicesandreducingcosts.Eventhoughthemunicipalityhaspotentialforrecycling,thereisstillweaknessinpublicpoliciesforwastemanagement,mainlyintheadoptionofmunicipalguidelinesthatencourageitasanalternativefortheeconomyandtheenvironment.Keywords:SolidWaste,Recycling,Management.Agravimetriaconstituiumainformac\ca~oimportantenagesta~odosresıˊduossoˊlidos,poisauxilianomonitoramentoambiental,nacompreensa~odoprocessodedecomposic\ca~odosresıˊduosenaestimativadavidauˊtildemateriaisparareciclagem,dadosessestambeˊmcruciaisparaelaborac\ca~odosplanosderesıˊduossoˊlidosmunicipais.Assim,esteartigoobjetivoucaracterizarosresıˊduossoˊlidosproduzidosnacidadedeSoure,noParaˊ,paracontribuirnasuagesta~oderesıˊduossoˊlidos.Utilizouseacaracterizac\ca~ogravimeˊtricadefinidanaNBR10.004de2004.Notase,apoˊsagravimetria,queamaiorgerac\ca~oderesıˊduosseconcentranosmateriaisRejeitoseMateˊriaOrga^nica,querepresentam86,6 50.00 and, therefore, it is essential that the government intervenes through the cooperative, supporting services and reducing costs. Even though the municipality has potential for recycling, there is still weakness in public policies for waste management, mainly in the adoption of municipal guidelines that encourage it as an alternative for the economy and the environment.Keywords: Solid Waste, Recycling, Management.A gravimetria constitui uma informação importante na gestão dos resíduos sólidos, pois auxilia no monitoramento ambiental, na compreensão do processo de decomposição dos resíduos e na estimativa da vida útil de materiais para reciclagem, dados esses também cruciais para elaboração dos planos de resíduos sólidos municipais. Assim, este artigo objetivou caracterizar os resíduos sólidos produzidos na cidade de Soure, no Pará, para contribuir na sua gestão de resíduos sólidos. Utilizou-se a caracterização gravimétrica definida na NBR 10.004 de 2004. Nota-se, após a gravimetria, que a maior geração de resíduos se concentra nos materiais Rejeitos e Matéria Orgânica, que representam 86,6% de uma amostra de 91,5 kg. A maior quantidade de material reciclável coletada foi 4,16 kg de Filme PP colorido e a menor de material Tetra Pack, com 0,21 kg. O ganho mensal com a reciclagem para cada catador seria em média de R50,00 e, portanto, sendo essencial que o poder público intervisse pela cooperativa, apoiando os serviços e reduzindo os custos. Mesmo o município apresentando potencial para a reciclagem, existe ainda fragilidade nas políticas públicas para o gerenciamento dos resíduos, principalmente na adoção de diretrizes municipais que a incentivem como uma alternativa para a economia e o meio ambiente.Palavras-chave: Resíduos Sólidos, Reciclagem, Gerenciamento

    Uma capitania dos novos tempos: economia, sociedade e política na São Paulo restaurada (1765-1822)

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    O artigo reflete sobre a trajetória da Capitania de São Paulo, a partir de 1750, apontando sua transformação, de fronteira e "boca do sertão", para território estratégico da conquista e defesa das partes meridionais e área economicamente integrada aos circuitos mercantis atlânticos.In this article, we reflect upon the history of the Captaincy of São Paulo as from 1750, drawing attention to its transformation from frontier land and "door to the backcountry" into a territory of strategic value for the purposes of conquest and defense of the southern regions, and economically integrated into the Atlantic trade routes

    Health-related quality of life in patients with type 1 diabetes mellitus in the different geographical regions of Brazil : data from the Brazilian Type 1 Diabetes Study Group

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    Background: In type 1 diabetes mellitus (T1DM) management, enhancing health-related quality of life (HRQoL) is as important as good metabolic control and prevention of secondary complications. This study aims to evaluate possible regional differences in HRQoL, demographic features and clinical characteristics of patients with T1DM in Brazil, a country of continental proportions, as well as investigate which variables could influence the HRQoL of these individuals and contribute to these regional disparities. Methods: This was a retrospective, cross-sectional, multicenter study performed by the Brazilian Type 1 Diabetes Study Group (BrazDiab1SG), by analyzing EuroQol scores from 3005 participants with T1DM, in 28 public clinics, among all geographical regions of Brazil. Data on demography, economic status, chronic complications, glycemic control and lipid profile were also collected. Results: We have found that the North-Northeast region presents a higher index in the assessment of the overall health status (EQ-VAS) compared to the Southeast (74.6 ± 30 and 70.4 ± 19, respectively; p < 0.05). In addition, North- Northeast presented a lower frequency of self-reported anxiety-depression compared to all regions of the country (North-Northeast: 1.53 ± 0.6; Southeast: 1.65 ± 0.7; South: 1.72 ± 0.7; Midwest: 1.67 ± 0.7; p < 0.05). These findings could not be entirely explained by the HbA1c levels or the other variables examined. Conclusions: Our study points to the existence of additional factors not yet evaluated that could be determinant in the HRQoL of people with T1DM and contribute to these regional disparities

    Pervasive gaps in Amazonian ecological research

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    Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

    Pervasive gaps in Amazonian ecological research

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    Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

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    The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry.

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    BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes data from Indian patients recruited in this registry. METHODS AND RESULTS: A total of 52,014 patients with newly diagnosed AF were enrolled globally; of these, 1388 patients were recruited from 26 sites within India (2012-2016). In India, the mean age was 65.8 years at diagnosis of NVAF. Hypertension was the most prevalent risk factor for AF, present in 68.5% of patients from India and in 76.3% of patients globally (P < 0.001). Diabetes and coronary artery disease (CAD) were prevalent in 36.2% and 28.1% of patients as compared with global prevalence of 22.2% and 21.6%, respectively (P < 0.001 for both). Antiplatelet therapy was the most common antithrombotic treatment in India. With increasing stroke risk, however, patients were more likely to receive oral anticoagulant therapy [mainly vitamin K antagonist (VKA)], but average international normalized ratio (INR) was lower among Indian patients [median INR value 1.6 (interquartile range {IQR}: 1.3-2.3) versus 2.3 (IQR 1.8-2.8) (P < 0.001)]. Compared with other countries, patients from India had markedly higher rates of all-cause mortality [7.68 per 100 person-years (95% confidence interval 6.32-9.35) vs 4.34 (4.16-4.53), P < 0.0001], while rates of stroke/systemic embolism and major bleeding were lower after 1 year of follow-up. CONCLUSION: Compared to previously published registries from India, the GARFIELD-AF registry describes clinical profiles and outcomes in Indian patients with AF of a different etiology. The registry data show that compared to the rest of the world, Indian AF patients are younger in age and have more diabetes and CAD. Patients with a higher stroke risk are more likely to receive anticoagulation therapy with VKA but are underdosed compared with the global average in the GARFIELD-AF. CLINICAL TRIAL REGISTRATION-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362

    Health-related quality of life in patients with type 1 diabetes mellitus in the different geographical regions of Brazil: data from the Brazilian Type 1 Diabetes Study Group

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