O debate crescimento neo-clássico / crescimento endógeno num modelo de crescimento bi-sectorial

Mestrado em Economia Monetária e FinanceiraCom o objectivo de comparar equilíbrios de longo prazo de crescimento nulo / crescimento positivo, é construído um modelo de optimização inter-temporal do consumo para um agente representativo que enfrenta duas restrições de recursos, as quais descrevem o processo de produção em cada um dos dois sectores (produtivo e educativo) que se supõe existirem na economia. Tendo sempre subjacente um ambiente de concorrência perfeita, o modelo estudado permite separar três casos, dois respeitantes a situações de crescimento endógeno e um outro que define um equilíbrio de crescimento nulo que pode ser identificado com a teoria de crescimento nco-clássica. Conclui-se, através de simulação numérica, que existem diferenças importantes entre as duas classes de modelos (de crescimento neo- clássico e de crescimento endógeno) quer no processo de ajustamento para o equilíbrio, quer na caracterização do próprio estado de equilíbrio, quer ainda na forma como este pode ser perturbado cxogenamente através, por exemplo, de um choque tecnológico.With the objective of confronting zero growth / positive growth long run steady- states, it is built an inter-temporal consumption optimisation model for a representative agent who faces two resource constraints, which describe the production process on each of the two sectors (productive and educational) that are supposed to exist on the economy. Always with an underlying perfect competition environment, the model studied permits to separate three cases, two respecting to endogenous growth situations and another one that defines a zero growth steady-state that can be identified with the neo-classical growth theory. It is found, through numerical simulation, that exists important differences between the two classes of models (neo-classical growth models and endogenous growth models) in the adjustment process towards the steady-state, in the characterisation of the steady-state itself and also in the way that this steady -state can be exogenously disturbed through, for example. a technological shock.info:eu-repo/semantics/publishedVersio

O impacto do complexo portuário de Sepetiba na área de panejamento 5 do município do Rio de Janeiro: diretrizes para o planejamento habitacional

Considerando las tendencias actuales, el Complejo Portuario de Sepetiba Integrará actividades portuarias com actividades industriales. El puerto será un punto, modal con capacidad de atraer para la reglón una serie de inversiones. Sin embargo, es necesario conciliar aspectos económicos, sociales y ambientales de modo que se alcancen el desarrollo de la región y mejorías en la calidad de vida de la población. El trabajo tiene por objetivo brindar elementos para el planeamiento habitacional en la Área de Planeamiento 5 del Municipio de Rio de Janeiro. Esta área fue seleccionada porque está próxima al Puerto de Sepetiba,forma parte del área destinada al complejo industrial y deberá atraer mucha mano de obra incrementando también el problema habitacional. Para este trabajo se desarrolló un diagnóstico mostrando las presentes condiciones de habitación de baja renda en la AP-5. En base a este diagnóstico fue posible enumerar algunas sugerencias utilizando la técnica de monitorización de señales

The usage of lean tools in healthcare environment

This study aims to cover aspects that were not addressed in previous reviews and update them. A review was conducted on 48 articles published in journals indexed by Web of Science and/or Scopus. The results were compared with those presented in previous reviews on the same subject: lean healthcare. This study identified the state of the art of lean healthcare, considering aspects such as lean tools, healthcare areas, and other factors. Understanding the current knowledge about barriers and tools for implementing lean healthcare should be valuable for healthcare managers. Furthermore, we emphasize that previous studies did not address the mapping of barriers to lean healthcare adoption

Evaluation of band gap energy of TiO2 precipitated from titanium sulphate

The determination of the band gap energy () of semiconductors powder materials can be performed from diffuse reflectance spectroscopy (DRS) measurements. For this purpose, the classical theory proposed by Kubelka and Munk (K-M) and the so-called plot Tauc, both discussed here, have been largely employed. We investigate the values of anatase TiO2 particles synthesized by precipitation of titanyl sulphate in the presence of 5% ammonia solution and titanium and iron salts. Based on K-M function and Tauc plot and considering that the TiO2 anatase phase is an indirect band gap semiconductor, our results indicate that the samples subjected to a mechanochemical treatment (mill rotation speed equal to 300 rpm) present substantially lower values compared to those reported by other authors in a recent work(undefined

Indicadores relacionados ao uso racional de medicamentos e seus fatores associados

OBJETIVO: Avaliar indicadores relacionados ao uso racional de medicamentos e seus fatores associados em unidades básicas de saúde. MÉTODOS: Estudo transversal realizado em amostra representativa de municípios do Brasil incluídos na Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos – Serviços, 2015. Os dados foram coletados por meio de entrevista com usuários, profissionais dispensadores de medicamentos e prescritores; e descritos por meio de indicadores de prescrição, dispensação e de serviços de saúde. Realizou-se análise da associação entre características dos recursos humanos dos serviços farmacêuticos e indicadores de dispensação. RESULTADOS: Em nível nacional, o número médio de medicamentos prescritos foi de 2,4. A proporção de usuários com prescrição de antibiótico foi de 5,8%, 74,8% dos usuários receberam orientações sobre medicamentos na farmácia e para 45,1% usuários todos os medicamentos prescritos eram da relação nacional de medicamentos essenciais. Todos os indicadores apresentaram variações estatisticamente significantes entre as regiões do Brasil. Os dispensadores que relataram a presença de farmacêutico na unidade com carga horária igual ou superior a 40 horas semanais apresentaram 1,82 mais chance de transmitir orientações sobre o modo de usar dos medicamentos no processo de dispensação. CONCLUSÕES: A análise de indicadores de prescrição, dispensação e de serviços de saúde nas unidades básicas de saúde mostrou proporção insatisfatória de prescrição de medicamentos essenciais e limitações na identificação correta do medicamento, orientação aos pacientes sobre medicamentos e de disponibilidade de protocolos terapêuticos nos serviços de saúdeOBJECTIVE: To evaluate indicators related to the rational use of medicines and its associated factors in Basic Health Units. METHOD: This is a cross-sectional study carried out in a representative sample of Brazilian cities included in the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos – Serviços, 2015 (PNAUM – National Survey on Access, Use and Promotion of Rational Use of Medicines – Services, 2015). The data were collected by interviews with users, medicine dispensing professionals, and prescribers; and described by prescription, dispensing, and health services indicators. We analyzed the association between human resources characteristics of pharmaceutical services and dispensing indicators. RESULTS: At national level, the average number of medicines prescribed was 2.4. Among the users, 5.8% had antibiotic prescription, 74.8% received guidance on how to use the medicines at the pharmacy and, for 45.1% of users, all prescribed medicines were from the national list of essential medicines. All the indicators presented statistically significant differences between the regions of Brazil. The dispensing professionals that reported the presence of a pharmacist in the unit with a working load of 40 hours or more per week presented 1.82 more chance of transmitting information on the way of using the medicines in the dispensing process. CONCLUSION: The analysis of prescription, dispensing, and health services indicators in the basic health units showed an unsatisfactory proportion of essential medicines prescription and limitations in the correct identification of the medicine, orientation to the patients on medicines, and availability of therapeutic protocols in the health service

Applied optics in the development of smart asphalt mixtures

The functionalization of asphalt mixtures is carried out in order to provide new capabilities to the road pavements, with major social, environmental and financial benefits. Optical characterization techniques as well as optical processes like photocatalysis play a major role in the development of new asphalt mixtures with smart functions. These advanced capabilities which are being developed in asphalt mixtures are: photocatalytic, superhydrophobic, self-cleaning, de-icing/anti-ice, self-healing, thermochromic, and latent heat thermal energy storage. The main objective of this research work is to stress the importance of optics and photonics technologies giving an overview of advanced functionalized smart asphalt mixtures.This work was supported by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding UIDB/04650/2020. This work was partially financed by FCT - Fundação para a Ciência e a Tecnologia - under the projects of the Strategic Funding UIDB/04650/2020, MicroCoolPav project EXPL/EQU-EQU/1110/2021, and NanoAir project PTDC/FISMAC/6606/2020

Review on the incorporation of phase change materials (PCM) into asphalt mixtures to mitigate urban heat Island

Serious environmental problems are attributed to the uncontrolled growth of cities. Usually, highly populated areas suffer from soil sealing caused by the construction of infrastructure, such as road pavements and buildings. Regarding the Transportation Engineering, the most common material applied in road pavements is bitumen as binder constituent. Usually dark-coloured, the surface temperature of asphalt pavements may reach values higher than 60 °C during summer. This fact can significantly contribute to the formation of thermal cracks and deformations in asphalt binders and, in large urban centres, promote the formation of warmer microclimates since all the accumulated heat is released to the surrounding environment. The formation of Urban Heat Islands (UHI), a type of microclimate that arises from the increase in temperature of a location that does not match the region, caused by anthropic changes, for some time now, is a problem that has attracted a range of research to minimise harmful effects caused to the environment. Some of the most promising studies to decrease the temperature of pavements are using Phase Change Materials (PCM). PCM are materials that can accumulate a large amount of thermal energy and are widely used in the textile industry, smart tissues, and construction, improving thermal comfort. PCM can minimise the problems arising from seasonal temperature variations when used in conjunction with asphalt materials. In this work, a review was made about which types of PCM are mainly used to achieve a significant decrease in pavement temperature—evaluating the material's thermal performance and the most used strategies to avoid its leakage. A systematic review of recent papers published in peer-reviewed journals (available in the Scopus database) involving asphalt mixtures with phase change materials revealed that the most used type of PCM is polyethylene glycol (PEG). Asphalt mixtures containing PCM generally have lower mechanical performance than conventional asphalt mixtures. There are problems related to leaking the material into the asphalt, sometimes reaching the soil and possibly causing contamination. On average, the temperature values decrease 4 °C, in some cases reaching 9 °C of difference, compared to conventional asphalt-based binders. To avoid leaking of this material, the most applied strategy is the PCM encapsulation within particles composed of silicon dioxide (SiO2) or polyacrylamide (PAM). According to the literature surveyed, it can be concluded that incorporating PCM into asphalt pavements can mitigate the formation of UHI acting as a thermoregulation factor, with acceptable mechanical and improved environmental performance

Utilização de medicamento pelos usuários da atenção primária do Sistema Único de Saúde

OBJETIVO: Caracterizar o perfil de utilização de medicamentos pelos usuários da Atenção Primária do Sistema Único de Saúde no Brasil. MÉTODOS: Estudo transversal, exploratório, de natureza descritiva, integrante da Pesquisa Nacional Sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos – Serviços, 2015. Foram realizadas entrevistas com usuários presentes nos serviços por meio de questionários semiestruturados. Foram avaliadas as variáveis sociodemográficas, clínicas e relacionadas ao uso de medicamentos e verificado o uso de medicamentos nos 30 dias anteriores à entrevista. A população foi estratificada em três faixas etárias: 18 a 44, 45 a 64 e 65 anos ou mais. As diferenças entre as faixas etárias foram verificadas por meio do teste t de Student para variáveis contínuas e teste qui-quadrado para categóricas. Utilizou-se o plano de análises de amostras complexas. Os medicamentos foram classificados conforme Anatomical Therapeutical Chemical Classification System. RESULTADOS: De 8.803 usuários entrevistados, 6.511 (76,2%) relataram uso de medicamentos nos 30 dias anteriores à entrevista. Em média, cada usuário utilizou 2,32 medicamentos, sem diferença entre os sexos. Dentre os usuários de medicamentos, 18,2% tinham 65 anos de idade ou mais. Em comparação com as demais faixas etárias os idosos apresentaram mais comorbidades, usaram mais medicamentos e autorrelataram pior condição de saúde; eram menos escolarizados, relataram pior situação econômica e viviam sozinhos. Os medicamentos mais utilizados foram “outros analgésicos e antipiréticos” (3º nível ATC) e losartana (5º nível ATC). CONCLUSÕES: A maioria dos usuários de medicamentos possuía baixa escolaridade e comorbidades. Os medicamentos mais utilizados foram os anti-hipertensivos. A automedicação foi maior entre os jovens. A maioria dos usuários relatou utilização de medicamentos genéricos. O número médio de medicamentos e a prevalência de uso aumentaram com a idade. Devido às características observadas e as dificuldades no uso de medicamentos, os idosos estão em situação de maior vulnerabilidadeOBJECTIVE: To characterize the use of medicines by patients of the primary health care of the Brazilian Unified Health System (SUS). METHODS: This is a cross-sectional, exploratory, and descriptive study, part of the Pesquisa Nacional sobre Acesso, Utilização e Promoção do Uso Racional de Medicamentos – Serviços, 2015 (PNAUM – National Survey on Access, Use and Promotion of Rational Use of Medicines – Services, 2015). Interviews were carried out with patients present in the services by semi-structured questionnaires. Sociodemographic, clinical, and use of medicines variables were assessed and the use of medicines in the 30 days prior to the interview was also verified. The population was stratified into three age groups: 18 to 44, 45 to 64, and 65 years or more. The differences between the age groups were verified using the Student’s t-test for continuous variables and chi-square test for the categorical ones. The complex samples analysis plan was employed. The medicines were classified according to the Anatomical Therapeutic Chemical Classification System. RESULTS: Of the 8,803 patients interviewed, 6,511 (76.2%) reported to have used medicines in the 30 days prior to the interview. On average, each patient used 2.32 medicines, without difference between the sexes. Among medicine users, 18.2% were aged 65 years or more. Compared to the other age groups, older adults presented more comorbidities, used more medicines, and self-reported worse health conditions. They were also less educated, reported worse economic situation, and lived alone. The medicines that were mostly used were “other analgesics and antipyretics” (3rd ATC level) and Losartan (5th ATC level). CONCLUSIONS: Most medicine users had lower education level and presented comorbidities. The most used medicines were the antihypertensive ones. Self-medication was higher among young people. Most patients reported to use generic medicines. The average number of medicines and the prevalence of use increased with age. Due to the characteristics observed and the difficulties in the use of medicines, older adults are in a situation of greater vulnerabilit

Classical Integrability of the Squashed Three-sphere, Warped AdS3 and Schroedinger Spacetime via T-Duality

We discuss the integrability of 2d non-linear sigma models with target space being the squashed three-sphere, warped anti-de Sitter space and the Schroedinger spacetime. These models can be obtained via T-duality from integrable models. We construct an infinite family of non-local conserved charges from the T-dual Lax currents, enhancing the symmetry of warped anti-de Sitter space and the Schroedinger spacetime to sl2(R)+sl2(R).Comment: 29 Pages, 3 appendices. Minor changes: added references, footnot