Simulação de desempenho luminoso para salas de aula em Natal-RN

The city of Natal has a significant daylight availability, although it use isn’t systematically explored in schools architecture. In this context, this research aims to determine procedures for the analysis of the daylight performance in school design in Natal-RN. The method of analysis is divided in Visible Sky Factor (VSF), simulating and analyzing the results. The annual variation of the daylight behavior requires the adoption of dynamic simulation as data procedure. The classrooms were modelled in SketchUp, simulated in Daysim program and the results were assessed by means of spreadsheets in Microsoft Excel. The classrooms dimensions are 7.20mx 7.20m, with windows-to-wall-ratio (WWR) of 20%, 40% and 50%, and with different shading devices, such as standard horizontal overhang, sloped overhang, standard horizontal overhang with side view protection, standard horizontal overhang with a dropped edge, standard horizontal overhang with three horizontal louvers, double standard horizontal overhang, double standard horizontal overhang with three horizontal louvers, plus the use of shelf light in half the models with WWR of 40% and 50%. The data was organized in spreadsheets, with two intervals of UDI: between 300lux and 2000 lux and between 300lux and 3000lux. The simulation was performed with the weather file of 2009 to the city of NatalRN. The graphical outputs are illuminance curves, isolines of UDI among 300lux and 2000 lux and tables with index of occurrences of glare and to an UDI among 300lux 3000lux. The best UDI300-2000lux performance was evidenced to: Phase 1 (models with WWR of 20%), Phase 2 (models with WWR of 40% and 50% with light shelf). The best UDI300-3000lux performance was evidenced to: Phase 1 (models with WWR of 20% and 40% with light shelf) and Phase 2 (models with WWR of 40% and 50% with light shelf). The outputs prove that the daylight quality mainly depends on the shading system efficacy to avoid the glare occurrence, which determines the daylight discomfort. The bioclimatic recommendations of big openings with partial shading (with an opening with direct sunlight) resulted in illuminances level higher than the acceptable upper threshold. The improvement of the shading system percentage (from 73% to 91%) in medium-size of openings (WWR 40% and 50%) reduced or eliminate the glare occurrence without compromising the daylight zone depth (7.20m). The passive zone was determined for classrooms with satisfactory daylight performance, it was calculated the daylight zone depth rule-of-thumb with the ratio between daylight zone depth and the height of the window for different size of openings. The ratio ranged from 1.54 to 2.57 for WWR of 20%, 40% and 50% respectively. There was a reduction or elimination of glare in the passive area with light shelf, or with awning window shading.

História oral de vida de pessoas com úlcera venosa nos serviços de atenção primária à saúde

The Chronic Venous insufficiency is characterized as a set of physical changes including how most serious complication of venous ulcers, characterized by irregular and progressive loss of continuity of the skin. The occurrence of venous ulcers in people with chronic venous insufficiency generates dependence on them with health services, with long-term treatments that cause limitations and high-impact changes, affecting their quality of life, affecting the physical, psychological, social, cultural and spiritual as an important public health problem. This study aimed to describe the experience of having a venous ulcer, in the scenario of primary health care services to Health, which includes Primary Care Units and Family Health Strategy in the city of Natal / RN, based on the life histories of users. This is a qualitative study, exploratory and descriptive, with the Oral History of Life as a methodological framework. From the ponto zero was the recruitment of participants who formed the network, totaling six employees, of both sexes and aged between 57 and 79 years. After approval by the Research Ethics Committee - UFRN under the Protocol 653 788/2014 and CAAE 30408014.0.0000.5537 was held data collection, between the months of July and August, through interviews, using identification and characterization of the instrument employees and open questions. Interviews were recorded, transcribed, transcriadas and returned to employees for a conference. The narratives were subjected to Content thematic analysis technique, according to Bardin, allowing the construction of three themes that encompass categories, namely: Axis I - Perspectives on the changes: the impact wound in social relations (changes with ulcer venous, venous ulcer and social and family relationships); Axis II - Brands in body and soul: the story of being hurt (conceptions of the body injured; therapeutic itinerary in primary care services); and Axis III - Reconstruction of being hurt: coping mechanisms (redefinition of the wounded body, resilience to chronic wound). The impact of having a chronic venous ulcer generates impact of physical, psychological and social order. As aspects related to changes after the appearance of venous ulcers, survey participants reported the presence of pain, physical limitations, psychological distress, social and emotional isolation, incapacity, aesthetic discomfort and dependency on health services; the family was the aspect thatshowed no significant change after the occurrence of wound for most participants, an ally in the therapeutic process as a support network. The redefinition of the body and the wound are the main coping mechanism of chronic condition. The services in the Primary Care Network play a fundamental role in the rehabilitation of patients with venous ulcers, although there are difficulties in accessing appropriate treatment and need for expanded services, with permanent professional training of health teams and providing the resources managers to strengthen the comprehensive care of people with venous ulcers in Health Primary Care.

Percepção da equipe de saúde, discentes e usuários sobre a comunicação com indivíduos surdos na atenção primária

The study aimed to identify in the professionals and students of health courses that work in a health Basic Unit in the city of Natal/RN their perceptions of the care of deaf patients, and with the population's needs with hearing loss in relation to health care. This is a cross-sectional, exploratory, descriptive study, conducted between April to July 2014, with a population composed of 21 health professionals, 17 students and 8 deaf users. For data collection, we used a structured questionnaire with open and closed questions applied to groups composed of health professionals (doctors, dentists, nurses and health workers) and students of medical schools, nursing, physical education, nutrition and social service. The professionals/students answered a semi-structured questionnaire with open and closed questions concerning the possible difficulties the care of the deaf and hearing impaired. Data collection with deaf users was conducted through filmed interview for the Brazilian Sign Language (Libras) could be interpreted as to the Portuguese by the researcher. With the latter it was conducted a survey of their reactions when looking for a care in the health service. Regarding the profile of identification of the subjects, it was analyzed by simple descriptive statistics (absolute and relative frequencies). The open questions were analyzed through the content analysis technique which allowed the categorization process preserving all the points raised in the discussion so that the lines were representative of the whole. When asked about the professionals and students attitude used to communicate with deaf patients possible the following categories emerged: the "writing", the "gestures" and the "third party assistance". With regard of the deaf, when asked about their experiences in seeking care in health, the elucidated categories were: "quality of care to the hearing impaired", "communication with the hearing impaired adequacy" and "dependence on third parties." The closed questions were measured and adapted to the 5 degrees of variation Likert Scale, which comprised three of these issues: degree of difficulty in communication to meet a patient with hearing loss (minimum to great difficulty); feeling of comfort while using sign language (minimum to severe discomfort); and knowledge of the Law 10.436, which provides for the Brazilian Sign Language (Libras) (low knowledge to entirely clear). The data collected with professionals and students revealed some misunderstanding and discomfort in health care for deaf patients, reality also evidenced in the opinion of the deaf participants. This study revealed problems in communication, resulting in negative consequences in serving this population. This diagnosis may be relevant to public policy development and curriculum guidelines essential to the training of health professionals, inclusion and improving assistance to deaf.

Gravidade do olho seco em pacientes internados em unidade de terapia intensiva: análise de conceito e construção de definições

Dry eye syndrome is a multifactorial disease of the tear film, resulting from the instability of the lacrimal functional unit that produces volume change, up or tear distribution. In patients in intensive care the cause is enhanced due to various risk factors, such as mechanical ventilation, sedation, lagophthalmos, low temperatures, among others. The study's purpose is to build an assessment tool of Dry Eye Severity in patients in intensive care units based on the systematization of nursing care and their classification systems. The aim of this study is to build an assessment tool of Dry Eye Severity in hospitalized patients in Care Unit Intensiva.Trata is a methodological study conducted in three stages, namely: context analysis, concept analysis, construction of operational definitions and magnitudes of nursing outcome. For the first step we used the methodological framework for Hinds, Chaves and Cypress (1992). For the second step we used the model of Walker and Avant and an integrative review Whitemore seconds, Knalf (2005). This step enabled the identification of the concept of attributes, background and consequent ground and the construction of the settings for the result of nursing severity of dry eye. For the construction of settings and operational magnitudes, it was used Psicometria proposed by Pasquali (1999). As a result of context analysis, visualized from the reflection that the matter should be discussed and that nursing needs to pay attention to the problem of eye injury, so minimizing strategies are created this event with a high prevalence. With the integrative review were located from the crosses 19 853 titles, selected 215, and from the abstracts 96 articles were read in full. From reading 10 were excluded culminating in the sample of 86 articles that were used to analyze the concept and construction of settings. Selected articles were found in greater numbers in the Scopus database (55.82%), performed in the United States (39.53%), and published mainly in the last five years (48.82). Regarding the concept of analysis were identified as antecedents: age, lagophthalmos, environmental factors, medication use, systemic diseases, mechanical ventilation and ophthalmic surgery. As attributes: TBUT <10s, Schimer I test <5 mm in Schimer II test <10mm, reduced osmolarity. As consequential: the ocular surface damage, ocular discomfort, visual instability. The settings were built and added indicators such as: decreased blink mechanism and eyestrain.

Determinação de recomendações bioclimáticas para habitação de interesse social de quatro climas do Rio Grande do Norte

Recomendações projetuais baseadas no clima são fontes importantes de diretrizes para os arquitetos. Uma das formas de obtenção dessas recomendações é por meio de normas, como a NBR 15220 (ABNT, 2005), que agrupa as cidades em zonas homogêneas quanto as estratégias sugeridas. O zoneamento bioclimático brasileiro divide o território do Rio Grande do Norte em duas zonas, a ZB 7 e ZB 8, que possuem algumas recomendações distintas, como aberturas grandes e vedações leves para a região litorânea contra aberturas pequenas e vedações pesadas para a região semiárida. Entretanto, outras configurações climáticas estão presentes no RN e não possuem clara recomendação. Este é o caso das regiões serranas e das regiões intermediárias entre o litoral e a região semiárida. Em virtude disso, este estudo visa encontrar recomendações bioclimáticas para habitações de interesse social nessas quatro condições climáticas. Para tanto, utilizou-se ferramenta computacional para realização de simulações das condições térmicas de três tipos de habitações populares - alongada, ramificada e compacta - e das seguintes estratégias: presença ou ausência de ventilação natural e sombreamento, massa térmica leve ou pesada, e Fator de Calor Solar alto ou baixo. Essas simulações foram realizadas para quatro condições climáticas do estado. Foram analisados os desempenhos de cada caso para identificar as estratégias e tipos de habitação recomendados para cada clima. De maneira geral, nos climas deNatal, Mossoró e Caicó viu-se que habitações com FCS baixo e com presença de ventilação natural possuem os melhores desempenhos. No clima de Areia, a ausência de ventilação aliada ao baixo FCS é que produziu os melhores desempenhos. O sombreamento melhora o desempenho nas cidades de clima quente, mas aumenta as horas com desconforto ao frio em Areia. A massa térmica varia de acordo com as demais estratégias, tendo casos em que habitações com massa térmica alta possuem melhores desempenhos que outros casos com massa térmica baixa. Por fim, viu-se que as estratégias para Natal, Caicó e Mossoró são bem semelhantes, com a recomendação de ventilação natural, FCS baixo nas vedações e sombreamento. Para Areia, a recomendação é não ventilar, ter FCS baixo e massa térmica alta.

Determinação de recomendações bioclimáticas para habitação de interesse social de quatro climas do Rio Grande do Norte

Recomendações projetuais baseadas no clima são fontes importantes de diretrizes para os arquitetos. Uma das formas de obtenção dessas recomendações é por meio de normas, como a NBR 15220 (ABNT, 2005), que agrupa as cidades em zonas homogêneas quanto as estratégias sugeridas. O zoneamento bioclimático brasileiro divide o território do Rio Grande do Norte em duas zonas, a ZB 7 e ZB 8, que possuem algumas recomendações distintas, como aberturas grandes e vedações leves para a região litorânea contra aberturas pequenas e vedações pesadas para a região semiárida. Entretanto, outras configurações climáticas estão presentes no RN e não possuem clara recomendação. Este é o caso das regiões serranas e das regiões intermediárias entre o litoral e a região semiárida. Em virtude disso, este estudo visa encontrar recomendações bioclimáticas para habitações de interesse social nessas quatro condições climáticas. Para tanto, utilizou-se ferramenta computacional para realização de simulações das condições térmicas de três tipos de habitações populares - alongada, ramificada e compacta - e das seguintes estratégias: presença ou ausência de ventilação natural e sombreamento, massa térmica leve ou pesada, e Fator de Calor Solar alto ou baixo. Essas simulações foram realizadas para quatro condições climáticas do estado. Foram analisados os desempenhos de cada caso para identificar as estratégias e tipos de habitação recomendados para cada clima. De maneira geral, nos climas deNatal, Mossoró e Caicó viu-se que habitações com FCS baixo e com presença de ventilação natural possuem os melhores desempenhos. No clima de Areia, a ausência de ventilação aliada ao baixo FCS é que produziu os melhores desempenhos. O sombreamento melhora o desempenho nas cidades de clima quente, mas aumenta as horas com desconforto ao frio em Areia. A massa térmica varia de acordo com as demais estratégias, tendo casos em que habitações com massa térmica alta possuem melhores desempenhos que outros casos com massa térmica baixa. Por fim, viu-se que as estratégias para Natal, Caicó e Mossoró são bem semelhantes, com a recomendação de ventilação natural, FCS baixo nas vedações e sombreamento. Para Areia, a recomendação é não ventilar, ter FCS baixo e massa térmica alta.

Vernaculares: a casa de fazenda seridoense do século XIX como exemplo de adaptação ao clima semiárido

The farm’s rural dwellings of creation from the Seridó Potiguar microregion, built in the nineteenth century, became a reference by its vernacular character, i.e. these buildings, besides having recognized relevance to the identity of the region, they are adapted to the conditions of the place in many aspects (economic, cultural, construction, physical, et.) and consist in protective spaces in relation to hostile characteristics of Seridó’s climate. Considering the above premise, the following question arises: What characteristics of the nineteenth century Seridó Potiguar’s cattle farms are crucial for them to be a protective space in relation to the semiarid climate? In order to answer the question, this research aim to identify which particularities of the Seridó’s farmhouses that contribute to adaptability in these buildings to semiarid climate, as protection environments; and contribute to the stock valuation of the architectural heritage concerned. Therefore, procedures were adopted divided into two stages. Were first identified the recurring characteristics in the studied buildings, through typological study performed from existing inventories (DINIZ, 2008; FEIJÓ, 2002; IPHAN, 2012). To define the type it worked up with the concept that merges Durand’s analytical typology that identifies the similarities and differences to classify buildings, having the character of historical survey and architectural documentation, with the definition proposed by Argan (1963) that the type is not defined a priory, but the deduction from a number of illustrative cases which have formal and functional similarity with each other. Then worked up in a sample of five different types with each other, defined by the possibility of access to the interior of the houses, proximity to other copies, good state of conservation and preservation. The contemplated farms were: Pitombeiras, Agenus e Garrotes in Acari’s town, and the municipality of Caicó, Palma and Penedo. The second stage consists of the architectural survey, photographic record, digital three-dimensional modeling (aiming to expand the existing documentation and registration) and thermal monitoring over approximately a representative day in five farmhouses, relating the thermal performance of the houses with their individual characteristics. The selected variables for analysis monitoring are based on the thermal comfort adaptive model (SPAGNOLO and DE DEAR, 2003 apud NEGREIROS, 2010). The characteristics of the houses were analyzed as meeting the passive thermal conditioning strategies recommended by NBR 15220 (ABNT, 2005), for the bioclimatic zone 7 where the municipalities of Caicó and Acari are located. The house’s analysis of the operating temperatures revealed that 90% of the times of day the environments are within the comfort range. The farmhouses, which had a higher degree of compliance with recommended bioclimatic strategies, had the best thermal performance. In environments (usually the kitchen and rooms with low ceiling heights, exposed to west radiation) which still had discomfort hours, the thermal comfort can be reached with air movement approximately 1,0 m/s.

Vernaculares: a casa de fazenda seridoense do século XIX como exemplo de adaptação ao clima semiárido

The farm’s rural dwellings of creation from the Seridó Potiguar microregion, built in the nineteenth century, became a reference by its vernacular character, i.e. these buildings, besides having recognized relevance to the identity of the region, they are adapted to the conditions of the place in many aspects (economic, cultural, construction, physical, et.) and consist in protective spaces in relation to hostile characteristics of Seridó’s climate. Considering the above premise, the following question arises: What characteristics of the nineteenth century Seridó Potiguar’s cattle farms are crucial for them to be a protective space in relation to the semiarid climate? In order to answer the question, this research aim to identify which particularities of the Seridó’s farmhouses that contribute to adaptability in these buildings to semiarid climate, as protection environments; and contribute to the stock valuation of the architectural heritage concerned. Therefore, procedures were adopted divided into two stages. Were first identified the recurring characteristics in the studied buildings, through typological study performed from existing inventories (DINIZ, 2008; FEIJÓ, 2002; IPHAN, 2012). To define the type it worked up with the concept that merges Durand’s analytical typology that identifies the similarities and differences to classify buildings, having the character of historical survey and architectural documentation, with the definition proposed by Argan (1963) that the type is not defined a priory, but the deduction from a number of illustrative cases which have formal and functional similarity with each other. Then worked up in a sample of five different types with each other, defined by the possibility of access to the interior of the houses, proximity to other copies, good state of conservation and preservation. The contemplated farms were: Pitombeiras, Agenus e Garrotes in Acari’s town, and the municipality of Caicó, Palma and Penedo. The second stage consists of the architectural survey, photographic record, digital three-dimensional modeling (aiming to expand the existing documentation and registration) and thermal monitoring over approximately a representative day in five farmhouses, relating the thermal performance of the houses with their individual characteristics. The selected variables for analysis monitoring are based on the thermal comfort adaptive model (SPAGNOLO and DE DEAR, 2003 apud NEGREIROS, 2010). The characteristics of the houses were analyzed as meeting the passive thermal conditioning strategies recommended by NBR 15220 (ABNT, 2005), for the bioclimatic zone 7 where the municipalities of Caicó and Acari are located. The house’s analysis of the operating temperatures revealed that 90% of the times of day the environments are within the comfort range. The farmhouses, which had a higher degree of compliance with recommended bioclimatic strategies, had the best thermal performance. In environments (usually the kitchen and rooms with low ceiling heights, exposed to west radiation) which still had discomfort hours, the thermal comfort can be reached with air movement approximately 1,0 m/s.

Proposta de método para avaliação do desempenho térmico de residências unifamiliares em clima quente e úmido

Nowadays, evaluation methods to measure thermal performance of buildings have been developed in order to improve thermal comfort in buildings and reduce the use of energy with active cooling and heating systems. However, in developed countries, the criteria used in rating systems to asses the thermal and energy performance of buildings have demonstrated some limitations when applied to naturally ventilated building in tropical climates. The present research has as its main objective to propose a method to evaluate the thermal performance of low-rise residential buildings in warm humid climates, through computational simulation. The method was developed in order to conceive a suitable rating system for the athermal performance assessment of such buildings using as criteria the indoor air temperature and a thermal comfort adaptive model. The research made use of the software VisualDOE 4.1 in two simulations runs of a base case modeled for two basic types of occupancies: living room and bedroom. In the first simulation run, sensitive analyses were made to identify the variables with the higher impact over the cases´ thermal performance. Besides that, the results also allowed the formulation of design recommendations to warm humid climates toward an improvement on the thermal performance of residential building in similar situations. The results of the second simulation run was used to identify the named Thermal Performance Spectrum (TPS) of both occupancies types, which reflect the variations on the thermal performance considering the local climate, building typology, chosen construction material and studied occupancies. This analysis generates an index named IDTR Thermal Performance Resultant Index, which was configured as a thermal performance rating system. It correlates the thermal performance with the number of hours that the indoor air temperature was on each of the six thermal comfort bands pre-defined that received weights to measure the discomfort intensity. The use of this rating system showed to be appropriated when used in one of the simulated cases, presenting advantages in relation to other evaluation methods and becoming a tool for the understanding of building thermal behavior

Influência das áreas verdes no microclima local: um estudo do conjunto habitacional Ponta Negra, Natal/RN

Owing to na intense process of urban development, urban uneasiness and discomfort in the daily life of populations have nowadays, especially in the big cities, become increasingly ordinary issues. Population density, degeneration of central areas and pollution are some of the environmental stressors the urban man is subjected to. The existence of open areas in the urban network contributes to a better movement of the air and transforms salubrity conditions. Yet, it has been noticed that parks and squares are disappearing from the heart of the city districts. In their place there are either unused plots of land where garbage has been dumped or nearly all-paved squares with meager or no vegetation at all. Such areas, when handled properly, play an important role in the city because in addition to being zones for rendering a mild climate they perform social, cultural and hygienic functions. Aiming at demonstrating that proper handling of green areas can favorably influence the local microclimate, we have attempted to develop analysis from the point of view of bioclimatizing attributes of urban form and their relationship to the local microclimate found in the eight open areas located in the Ponta Negra Housing Complex in the city of Natal/RN

Fachada flexível para casa padronizada em condomínios

The employment of flexibility in the design of façades makes them adaptable to adverse weather conditions, resulting in both minimization of environmental discomfort and improvement of energy efficiency. The present study highlights the potential of flexible façades as a resource to reduce rigidity and form repetition, which are usually employed in condominiums of standardized houses; as such, the work presented herein contributes to field of study of architectural projects strategies for adapting and integrating buildings within the local climate context. Two façade options were designed using as reference the bionics and the kinetics, as well as their applications to architectural constructions. This resulted in two lightweight and dynamic structures, which cater to constraints of comfort through combinations of movements, which control the impact of solar radiation and of cooling in the environment. The efficacy and technical functionality of the façades were tested with comfort analysis and graphic computation software, as well as with physical models. Thus, the current research contributes to the improvement of architectural solutions aimed at using passive energy strategies in order to offer both better quality for the users and for the sustainability of the planet