Por uma educação ambiental corporalizada :a emoção em trilhas interpretativas

Prétendant contribuer au progrès sur le champ épistémologique de l éducation environnementale, nous avons défini l objetif principal de cette recherche visant construire et évaluer initialement des structures éco-vécues appliquées aux sentiers écologiques interprétatifs dans des zones de protection environnementale. Pour conduire la tâche de l investigation écophénoménologique, l objectif présent a été déplié spécifiquement de la façon suivante: 1. Approfondir la discussion sur le rôle de l émotion et du sentiment dans l éducation. 2. Démarquer un trajet de sentier écologique du Parque das Dunas en identifiant des aires éco-sensorielles pour le développement du vécu écologique. 3. Construire des structures des vécus écologiques pour les environnements préalablement définis dans un sentier du Parque das Dunas. 4. Vivre l expérience des structures éco-vécues en tant qu éducateurs, visant leur validation méthodologique. 5. Présenter la conception de l éducation environnementale corpororalisée qui valorise les émotions et les sentiments dans les structures des éco-vécus. Pour orienter notre investigation écophénoménologique à fin de construire et évaluer des structures des éco-vécues appliquées aux sentiers écologiques interprétatifs, quelques présupposés ont été définis pour agir comme une boussole pendant toute notre promenade écologique: Du point de vue biologique, l amour est l émotion qui constitue le domaine des actions dans lequel l autre est accepté comme il est dans le présent, sans attente par rapport aux conséquences de l intimité, même si c est légitime de les attendre (Maturana e Verden-Zöller, 2004). Éduquer dans la biologie de l amour est s occuper du développement, de la pensée et des intelligences et, au même temps, éduquer l écoute du sentiment et l ouverture du coeur (Moraes, 2003). La corporéité est le siège radiant, le premier et le principal le critère éducationnel (Assmann, 1995). Les activités qui fluent, proportionnent la sensation de découverte, un sentiment créatif qui transpose l individu vers une nouvelle réalité (Csikszntmihalyi, 1992). Ressentir le sentiment fait exalter la portée des émotions (Damásio, 2004). L ethnographie et l écophénoménologie ont été les approches méthodologiques utilisées dans l étude. Onze éducateurs ont participé du processus de l expérience vécue et de l évaluation des structures éco-vécues construites dans la perspective d une Education Environnementale Corporalisée. Le développement de la conception d une Education Environnementale Corporalisée à partir du vécu sur les sentiers écologiques du Parque das Dunas, à Natal-RN, nous a amenés à structurer un système autopoïétique pour proposer des propriétés ou des principes configurant les intentions fondamentales d une Éducation Environnementale Corporalisée. Telle conception considère la métaphore de la Toile de la Corporéité vécue dans la Base de Recherche Corporéité et Éducation BACOR/UFRN et le phénomène de la ludopoïèse capable de faire émerger la joie de vivre la vie avec le sens de luminescence humaine. Associés à la Biologie de l amour, nous espérons pouvoir contribuer à la présence des émotions et des sentiments pour une perspective transdisciplinaire et corporalisée pour l Education Environnementale. Nous présentons cinq principes de guidage pour la concrétisation d une Education Environnementale Corporalisée: Ecopréservation, Ecoterritorialité, Ecoconectivité, Ecovaleur, Ecojouissance

Environmental temperature and cloacal and surface temperatures of broiler chicks in first week post-hatch

Adequate environmental temperature during the brooding period is very important to future broiler performance. Thus, the objective of this study was to investigate the extent to which environmental temperature affects the body weight and cloacal and surface (back, head, wing, and shank) temperatures. The study also investigated the sensible heat loss by radiation of broiler chicks reared at three environmental temperatures (35, 25, and 20 degrees C) up to 7 days of life. The results showed that chicks raised at low environmental temperature (20 degrees C) had lower body weight at 7 days of age. Birds kept at 20 degrees C also had significantly lower cloacal and surface temperatures than did other birds. The most marked difference was seen in the shanks. These findings revealed that body weight declined in chicks reared at 20 degrees C, and radiant heat loss (W) was nine times higher than for the birds kept at 35 degrees C at 7 days of age.

Effect of dietary energy and stocking density on the performance and sensible heat loss of broilers reared under tropical winter conditions

The objective of the present study was to evaluate the effects of different dietary energy levels and stocking densities on the thermoregulating parameters, live performance, and carcass traits of broilers reared under tropical winter conditions at different times of the day. In total, 1,312 one-d-old male broilers were used. Birds were allotted to three different stocking densities (10, 14 or 18 birds/m²) and two dietary energy levels (2900 or 3200 kcal ME/kg). The following parameters were evaluated:radiant heat load (RHL), rectal temperature (RT), feed intake (FI), weight gain (WG), feed conversion ratio (FCR), livability (L), production of live weight per area (WA), and carcass yield. Stocking density did not affect sensible heat loss (SRL) or rectal temperature (RT); however, as expected, sensible heat loss (SRL) and RT were influenced by time of the day, with higher values in the morning and in the afternoon, respectively. There was no effect of treatment (p>0.05) on carcass or parts yield. Feed intake was reduced in 3%, whereas weight gain and feed conversion ratio improved in 8 and 10%, respectively, as dietary energy level increased. on the other hand, stocking density did not influence live performance or carcass traits. Based on the present results, it is concluded that sensible heat loss depends on dietary energy levels and particularly on time of the day. Therefore, environmental house management is suggested during tropical winters in order to reduce differences between broiler skin and environmental temperatures in the morning and in the afternoon.

Corporeidade e humanescência: cenários ludopoiéticos na vida de professores contadores de história

During the latest years, the art of storytelling has received special attention from those who make education, art and culture. The storyteller is a singular person who manages to seduce itself and its listeners, by involving them in an atmosphere of pleasure and complicity, dodging situations, space and time, providing delight, stimulating creativity, daydreaming and imagination. This is a study developed with storyteller teachers that takes as its starting point the need to change the landscape of education, which seeks to emphasize the affirmation of embodiment of the teacher, so that it participates in a creative self-dynamic and the context in which they live. In addition , the following purposes accompanied the study : education - liberating practice and human development ; corporality - radiant , first and main focus of educational criteria; playfulness - a human dimension ; autopoiese - as an organization of human beings that produces and continuously transforms itself; flow experience concerns the feeling of full involvement in the activity , the psychic energy toward something that is being produced or performed , something that brings us pleasure , happiness and profound sense of well being. As general objective of the study we analysed the humanescent self-formation and its ludopoiética nature in storyteller teachers from humanescent workshops developed in a state school in Natal / RN. In view of the overall objective , we developed the following specific objectives : to identify the ludopoiéticas properties of self-worth , self-connectivity , self-territoriality , autotelia and self realization present in the life of storyteller teachers and the changes in the school environment, from the development of humanescent workshops; reveal the nature of humanescent self-training in storyteller teachers lives. The investigated group had the participation of eight teachers, and had the Escola Estadual Potiguassu as environment for the research. This is a descriptive study, understood as an action-research , developed with basis in the fundamentals and ethnomethodological principles , which used eight humanescents workshops , developed in the context of humanescent experiential pedagogy in conjunction with participant observation .The analyzes were focused on the chosen categories for the study : self-worth , self-connectivity , self-territoriality , autotelia and self-, indexicality and reflexivity . In terms of conclusions, we noted that the properties of ludopoiese were unveiled in the lives of the teachers by providing changes in their ways of being and living together. The teachers have become more creative and intensely began to experience their own life, social life, as well as its meaning. The struggle for a more cheerful and happy school was another important development highlighted in the reports of the teachers, also observing that there was a significant improvement in the reduction of violence in the school environment. Thus, we emphasize that the teachers began to recognize themselves like being ludic, playing with the beauty of storytelling and life

Variação anual de características morfológicas e da temperatura de superfície do pelame de vacas da raça Holandesa em ambiente semiárido

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desenvolvimento de antenas de microfita e antenas DRA Broadband

The search for ever smaller device and without loss of performance has been increasingly investigated by researchers involving applied electromagnetics. Antennas using ceramics materials with a high dielectric constant, whether acting as a substract element of patch radiating or as the radiant element are in evidence in current research, that due to the numerous advantages offered, such as: low profile, ability to reduce the its dimensions when compared to other devices, high efficiency of ratiation, suitability the microwave range and/or millimeter wave, low temperature coefficient and low cost. The reason for this high efficiency is that the dielectric losses of ceramics are very low when compared to commercially materials sold used in printed circuit boards, such as fiberglass and phenolite. These characteristics make ceramic devices suitable for operation in the microwave band. Combining the design of patch antennas and/or dielectric resonator antenna (DRA) to certain materials and the method of synthesis of these powders in the manufacture of devices, it s possible choose a material with a dielectric constant appropriate for the design of an antenna with the desired size. The main aim of this work is the design of patch antennas and DRA antennas on synthesis of ceramic powders (synthesis by combustion and polymeric precursors - Pe- chini method) nanostructured with applications in the microwave band. The conventional method of mix oxides was also used to obtain nanometric powders for the preparation of tablets and dielectric resonators. The devices manufactured and studied on high dielectric constant materials make them good candidates to have their small size compared to other devices operating at the same frequency band. The structures analyzed are excited by three different techniques: i) microstrip line, ii) aperture coupling and iii) inductive coupling. The efficiency of these techniques have been investigated experimentally and compared with simulations by Ansoft HFSS, used in the accurate analysis of the electromagnetic behavior of antennas over the finite element method (FEM). In this thesis a literature study on the theory of microstrip antennas and DRA antenna is performed. The same study is performed about the materials and methods of synthesis of ceramic powders, which are used in the manufacture of tablets and dielectric cylinders that make up the devices investigated. The dielectric media which were used to support the analysis of the DRA and/or patch antennas are analyzed using accurate simulations using the finite difference time domain (FDTD) based on the relative electrical permittivity (er) and loss tangent of these means (tand). This work also presents a study on artificial neural networks, showing the network architecture used and their characteristics, as well as the training algorithms that were used in training and modeling some parameters associated with the devices investigated

Variação anual de hormônios tireoideanos e características termorreguladoras de vacas leiteiras em ambiente quente

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise da indução de fluxo de ar por convecção livre em chaminé solar

Experiments were performed to study the effect of surface properties of a vertical channel heated by a source of thermal radiation to induce air flow through convection. Two channels (solar chimney prototype) were built with glass plates, forming a structure of truncated pyramidal geometry. We considered two surface finishes: transparent and opaque. Each stack was mounted on a base of thermal energy absorber with a central opening for passage of air, and subjected to heating by a radiant source comprises a bank of incandescent bulbs and were performed field tests. Thermocouples were fixed on the bases and on the walls of chimneys and then connected to a data acquisition system in computer. The air flow within the chimney, the speed and temperature were measured using a hot wire anemometer. Five experiments were performed for each stack in which convective flows were recorded with values ranging from 17 m³ / h and 22 m³ / h and air flow velocities ranging from 0.38 m / s and 0.56 m / s for the laboratory tests and air velocities between 0.6 m/s and 1.1m/s and convective airflows between 650 m³/h and 1150 m³/h for the field tests. The test data were compared to those obtained by semi-empirical equations, which are valid for air flow induced into channels and simulated data from 1st Thermodynamics equation. It was found that the chimney with transparent walls induced more intense convective flows than the chimney with matte finish. Based on the results obtained can be proposed for the implementation of prototype to exhaust fumes, mists, gases, vapors, mists and dusts in industrial environments, to help promote ventilation and air renewal in built environments and for drying materials, fruits and seeds

Ratios of UV, PAR and NIR components to global solar radiation measured at Botucatu site in Brazil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

INFLUENCE of ENCAPSULATING MATERIALS on WATER SORPTION ISOTHERMS of VACUUM-DRIED PERSIMMON PULP POWDER

Water sorption isotherms for vacuum-dried persimmon pulp (PP) powder were determined in the temperature range of 20-50C, and the effects of maltodextrin (MD) or gum arabic (GA) addition on the water sorption behavior of the dried powders were analyzed. Several models were evaluated to fit the experimental data and the Guggenheim-Anderson-de Boer model was selected as the most adequate to describe the observed behavior. Addition of encapsulants affected the isotherms: at the same water activity, PP powder with added GA (PP + GA) or MD (PP + MD) presented lower equilibrium water content than pure PP and were less affected by temperature variations. Samples of PP + MD presented lower equilibrium moisture content than those of PP + GA. The isosteric heats of sorption of pulp powders with encapsulants were higher (less negative) than those of PP, suggesting that there are more active polar sites in PP than in pulp powder containing encapsulants.PRACTICAL APPLICATIONSThe choice of persimmon to carry out this work was due to the large persimmon production available in Brazil; moreover, persimmon pulp is rich in vitamin C, vitamin A and iron, as well as in phenolic compounds. Drying of fruit pulps with high sugar content presents technical difficulties because the hygroscopicity and thermoplasticity of the resulting powders when exposed to high temperature and relative humidity. For this reason, addition of high-molar-mass biopolymers, such as maltodextrin or gum arabic, is a strategy to aid drying and to improve storage stability. Knowledge of water sorption isotherms and net isosteric heats of sorption is important to various food processing operations, including drying, storage and packaging. They are useful in calculating time and energy consumptions during drying, modeling moisture changes during storage and predicting shelf life of food products.

A path integral approach to the full Dicke model with dipole-dipole interaction

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Zoneamento bioclimático da ovinocultura no Estado do Paraná

Utilizaram-se 45 fêmeas ovinas adultas (15 Hampshire Down [HD], 15 Texel [TE] e 15 Ile de France [IF]), para propor um zoneamento bioclimático da ovinocultura no Estado do Paraná. Mediram-se a temperatura retal (Tr), da epiderme (Te), do interior do velo (Tiv) e da superfície do velo (Tsv); a frequência respiratória (Fr); a temperatura do ar (Ta), pressão de vapor (e), velocidade do vento (v) e carga térmica radiante (CTR). O Índice de Conforto Térmico utilizado foi ICT= 0,6678Ta + 0,4969e + 0,5444Tg + 0,1038v. A regressão do ICT sobre Tr mostrou efeito quadrático para as três raças. Para ICT=24,3, 27,3 e 20,6, os valores de Tr foram respectivamente: 39,10ºC para a raça HD, 39,05ºC para TE e 39,09ºC para IF, atingindo 40,40; 40,50; e 40,28ºC, respectivamente, para ICT=58. As três raças aumentaram sua Tr a partir de ICT=26, com a TE apresentando menor Tr até o valor ICT=46; neste ponto, as três raças foram semelhantes, tendo a TE apresentado maiores valores. Para ICT igual a 27,6; 29,7; e 27,0, os valores de Fr foram, respectivamente, 89,63; 77,08; e 78,77 resp./min., para as raças HD, TE e IF. A raça TE apresentou menor Fr (77,08 resp./min.), para ICT=29,7 e para ICT=48, valores semelhantes aos da IF (181,96 resp./min.); a partir deste índice, passou a ser maior que as demais raças, atingindo valores de 288,66 resp./min. no ICT=56, porém inferior à HD (289,01 resp./min.). Neste índice, a raça IF foi a que apresentou a menor Fr (275,72 resp./min.). Uma extensa faixa ao longo do litoral do Estado, entrando cerca de 200 km para o interior até os limites das cidades de Castro, Telêmaco Borba, Laranjeiras do Sul e Pato Branco, permite a criação das três raças, sem exigir grandes esforços de termorregulação.

Evaluation of recycled tiles and OSB ceiling materials in closed broiler house prototypes

This study aimed at evaluating the thermal performance of a modular ceiling system for poultry houses. The reduced- and distorted-scale prototypes used ceiling modules made of reforested wood and were covered with recycled long-life package tiles. The following parameters were measured for 21 days: tile internal surface temperature (ST), globe temperature and humidity index (WBGT), and radiant heat load (RHL). Measurements were made at times of highest heat load (11:00 am, 13:00 pm, and 03:00 pm). Collected data were analyzed by R statistics software. Means were compared by multiple comparison test (Tukey) and linear regression was performed, both at 5% significance level. The results showed that the prototype with the ceiling was more efficient to reduce internal tile surface temperature; however, this was not sufficient to provide a comfortable environment for broilers during the growout. Therefore, other techniques to provide proper cooling are required in addition to the ceiling.

Enthalpy-entropy compensation based on isotherms of mango

Dados de equilíbrio da umidade da polpa de manga foram determinados utilizando-se o método estático gravimétrico. As isotermas de adsorção e dessorção foram obtidas na faixa de 30-70 ºC e as atividades de água (a w) de 0,02 a 0,97. A utilização do modelo de GAB nos resultados experimentais, através da análise de regressão não linear, proporcionou um bom ajuste entre os dados experimentais e os valores calculados. O calor isostérico de sorção foi estimado a partir dos dados de equilíbrio de sorção, utilizando-se a equação de Clausius-Clayperon. Notou-se que os calores isostéricos de sorção crescem com o aumento da temperatura e pode ser bem ajustado através de uma relação exponencial. A teoria da compensação entalpia-entropia foi aplicada às isotermas de sorção e gráficos deltaH versus deltaS forneceram as temperaturas isocinéticas, indicando um processo de sorção entalpicamente controlado.

Effect of drying method on the adsorption isotherms and isosteric heat of passion fruit pulp powder

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)