Estudo da interação no setor escuro através do parâmetro de hubble

A possible approach to the cosmological coincidence problem is to allow dark matter and dark energy to interact with each other also nongravitationally. Two general classes of interaction were considered in this thesis, characterized by a constant interaction parameter ( or

Interação social e envelhecimento ativo: um estudo em duas praças de Natal/RN

In view of the evident increase in the population group of people over 60 years old, the aging process has raised important discussions on social, political and economical planning that recommend that the increase in longevity must be followed by autonomy and well-being. Faced to these demands, the literature reports that physical activity is a key strategy to promote better living conditions for the elderly. Studies about personenvironment are making efforts to understand the socio physical environment role to encourage old people to make activities in many different environments. Among these, the urban public open space has been reported by many researches as a promising alternative in order to adopt a less sedentary life style. Based on these considerations, this study proposed to investigate the relationship between the social environment support elements and social interaction of seniors in public squares in the city of Natal, RN, using a multimethodological approach that included a experts panel, environmental characteristics analysis of 252 squares, case studies containing collective and individual interviews with elderly users and the spatial representation of their social interactions. The association between physical activities with the socialization practiced by them was identified as the main motivation for their presence in these places. The results indicate that the relationship between the socio-environmental characteristics (concept developed in this study) and the socio-spatial behaviors that include the spatial appropriation, spatial arrangements and interpersonal distances, helps to promote social interactions in carrying out activities, which, according to the assumptions Active Ageing Program, enable the maintenance of an active way of life, with important implications for health, wellness and quality of life in old age

O projeto arquitetônico e a antecipação do projeto de segurança contra incêndio: interferência mútua, interação necessária

The great demand for Federal Institutions of High Education (IFES) design, triggered by the favourable political moment, boosts the public works market and brings with it the stigma of seeking the lowest cost and meet the federal Law 8.666/93 (Bids). In this context, this research makes an analysis of compliance with Fire Safety’s normative requirements in IFES’s architectural designs, taking this point as an evaluation of quality of designs. For the study, were used, IFES’s designs, specifically from UFERSA – Universidade Federal Rural do Semiárido and UFRN – Universidade Federal do Rio Grande do Norte, selected by the relationship use x public served and yet, in the replication of these buildings’ construction. The research was developed through the identification of the Fire Safety applicable legislation to the designs in question, with the determination of the demanded conditions that are architect’s autonomy or that affect the architectural design. Tabulated the requirements, through data collection and measures gathered in the blueprints, was made a comparison and verification of the compliance with these. The results of this evaluation reveal that the minimum requirements was not fulfilled and that IFES’s architectural designs, taken as object in this study, certainly will suffer restrictions in their regularization process with the Fire Department. It is concluded that is necessary an improvement in the IFES’s designs to meet the minimum fire safety regulations and improvement in quality. Moreover, the results direct to the understanding that level of knowledge about Fire Safety received in undergraduate by architects is insufficient for appropriate elaboration of architectural designs in this area.

“Currículo encarnado”: cartografia simbólica e afinidades pós-coloniais

This thesis has as main objective to reflect about the defining conceptual elements of the embodied curriculum concept, ident ified curriculum conception from the analysis about the rationality employed in the doctoral work of teacher Antonio Fernando Gouvê a da Silva, entitled The construction of the curriculum in popular critical perspective: the significant words to the context ualized practices , written and defended in the Postgraduate Program in Education: Curriculum, in the Pontifícia Catholic University of São Paulo, in 2004. We looked, also, on the problematization of the affinities between postcolonial theories – analytical perspectives towards the discussion about coloniality and their effect on contemporary social weaving – and the embodied curriculum concept. We argue that the reflections present in the aforementioned work bring an articulated curriculum concept based on three conceptual symbiotic elements, namely: negativity, dialogue and praxis, which, by endorsing the possibility of a curricular ingrained practice in the life context of the individuals, have some post - colonial inclinations that lead to the problematizat ion about the neo - colonial manifestations in curricular sphere, outlining a critique of the modus operandi of the colonialism, particularly, in its cultural and epistemic dimension from which the education is inseparable. For that, we used as methodologica l procedure the symbolic cartography, knowledge building strategy systematized by Boaventura de Sousa Santos, which allowed us to construct interpretive maps that enabled the symbolization of the universe which we longed to understand, that is, the concept ual categories mentioned above, which, in our view, underlie the concept of embodied curriculum. In this direction, we anchored ourselves in a meaningful dialogue with the theoretical approach of Paulo Freire and some of his interpreters regarding the disc ussion on curriculum, especially the reflections dev eloped by Antonio Fernando Gouvê a da Silva, and authors whose theoretical developments resonate in prospects for humanization, social justice and empowerment, among which we highlight: Theodor Adorno, Hug o Zemelman, Wilfred Carr, Adolfo Sánchez Vázquez, among others. We seek, in the same manner, on the contributions of authors considered post - colonial, as Hugo Achugar, Gayatri Spivak, Boaventura de Sousa Santos and Enrique Dussel, to name a few, the reason s why we consider the embodied curriculum as a place of political - pedagogical enunciation, conducive to an educational praxis that engages in a curricular work of reality translation in order to see what overwhelms it to, then, elicit the construction of a school curriculum as an awareness project for releasing in relation to what is unjust and inhumane. We consider, finally, that the success of this curriculum embodied translation implies a larger number of speakers mobilized in the production of knowledge that yearns for social emancipation and contribute to the enrichment of human capabilities as the maintenance of the life and the dignity of people.

Generosidade e cooperação de crianças monitoradas e não monitoradas: a interação entre a condição socioeconômica e o ambiente escolar

Studies have shown that a person's socioeconomic status (SES) and the environment in which they are inserted modulate their pro-sociality. While children studying in schools with a more affluent student body tend to be more generous, adults with high SES in both real and experimental situations tend to be more selfish, greedy and individualistic. Another factor that influences pro-sociality is monitoring. When we do something under the supervision of another person, we tend to be more generous and cooperative, compared to situations in which no one is watching, even if the "observer" is a drawing of eyes. This monitoring effect occurs in both adults and children. To date, no studies have investigated whether the SES and the environment influence the pro-sociality of the children. There have also been no studies on how the monitoring effect might be influenced by SES and the environment (in this case, whether the environment is a public or private school). Given this context, our main objective was to investigate whether the generosity and cooperation of monitored and unmonitored kids is modulated by these factors. To this end, we did eight matches of the public goods, under monitoring and control conditions, with 249 children from the ages of 7 to 10 years enrolled in public and private schools in Natal, state of Rio Grande do Norte (Brazil). The SES of each child's family was assessed according to the Economic Classification Criterion of Brazil (2013). Contrary to our predictions, SES, school environment and experimental conditions did not significantly influence cooperation and generosity behavior when analyzed separately. We discuss whether the influences of resource and experimental design adopted for the current study and the historical and economic conditions of Brazil might explain these observations. Interestingly, when SES and school environment were analyzed together, an effect of monitoring on generosity and cooperation was detected. More specifically, monitoring had the effect of decreasing generosity among children with greater SES in private schools; and increased cooperation among children with greater SES in public schools. These results suggest that there is an influence of monitoring on the pro-sociality of children in relation to their SES and acquaintanceship environments. We argue that these observations may be explained by different preoccupations with reputation, according to the environment in which a child is inserted.

Modelagem computacional para avaliação da interação entre painéis de alvenaria e estrutura de suporte em concreto armado

The developed study proposes a new computer modeling efficient and easy to apply in usual project situations to evaluate the interaction between masonry panels and support structure. The proposed model simulates the behavior of the wall exclusively using frame finite elements, thus compounding an equivalent frame. The validation was performed in two ways: firstly, through the analysis of various panels of generic plans, comparing the results obtained from equivalent frame model with the ones from a reference model, which uses shell finite elements in discretization of the walls; and in a second step, comparing with the results of the experimental model of Rosenhaupt. The analyzes considered the linear elastic behavior for materials and consisted basically in the evaluation of vertical displacements and efforts in support beams, and tensions at the base of walls. Was also evaluated, from flat and threedimensional modeling of some walls from a real project, important aspects of the wall-beam interaction, e.g.: the presence of openings of doors and windows, arranged in any position; conditions of support and linking of beams; interference of moorings between walls; and consideration of wind action. The analysis of the achieved results demonstrated the efficiency of the proposed modeling, since they have very similar aspects in the distribution of stresses and efforts, always with intensities slightly larger than those of the reference and experimental models.

Terra de charneca erma e de saudade: a construção simbólica do Alentejo português na obra de Florbela Espanca (1916-1930)

In this work, we investigate the symbolic construction of a particular spatiality, starting from the theoretical assumption that spaces are subjective constructions guided by different cultures, feelings and rationales, but mostly spaces are human constructs driven by social relations, as a result of the material investment and symbol that reflects the needs of a particular society at a given time of historical development. Accordingly, we analyze the construction and symbolic imagery of the central region of Portugal, the Alentejo, from the literary production (1916 – 1930) the English poet Florbela Espanca D'Alma Conception Espanca. Thus, we propose to analyze the florbelian work not only from its internal relations, but also external, emphasizing the link between history, space and literature. Thus, we propose to inquire about the symbolic dimension – the meanings of images and representations – which prompted one of the most controversial Portuguese poets of the early twentieth to look into the poetic construction of space Alentejo century, questioning not only the senses brokered by speech literary Florbela Espanca to invent your Alentejo, adorned with memories, pain and longing, but investigate how the socio-cultural environment influenced your work, in your life and ways to feel and live the Alentejo. To better understand how the poet means the Alentejo spatiality, throughout this work we question three categories of space in the work of Florbela Espanca: the region, the countryside and the landscape of the Alentejo. Thus, this research falls within the field of cultural history in the medical we will work with the entire literary output Florbela Espanca, letters, diaries, photos and biographical and literary criticism, by establishing the time frame of 1916 – beginning of intellectual activity Florbela Spank – the 1930 – publication of Blossom Heath (posthumous) and the suicide of the poet. Therefore, a constant symbolic exercise of words crossed by more subjective feelings of the subject, all the time our work will be guided by the question of what would be the Alentejo for the poet, who senses and meanings across this spatiality that marked so sovereignly happiest memories and sad life Florbela Espanca.

Um olhar sobre a música gospel: a lógica simbólica e de mercado do Ministério de Louvor Diante do Trono

This study aims to understand how the gospel music genre - based on the gospel band Ministério de Louvor Diante do Trono - articulates itself to the logic of the market by its insertion in the music industry and use of symbolic logic in the available songs of their Cds and DVDs. Our research is a case study, methodologically being the descriptive analysis of the production process, distribution and broadcasting of the band's CDs and functional analysis of the music that permeates the entire thesis. The following songs are presented as an analytical corpus: Preciso de Ti,Quero me Apaixonar, Tua Visão, Creio, Tu Reinas e Tetelestai. Our hypothesis is that religious institutions - as a field responsible for the structure which maintains gospel artists - experiences a new dynamic that consists of a superficial modernity, ratified in the ways the symbolic goods produced communicate, that is, simulate a religious modernity maintaining traditional values regarding the dogmas of religion , but incorporate business and advertising procedures in the dissemination of its products The results point to gospel music as mediation, part of the religious ritual sometimes as prayer and other as preaching, stimulating consumption and entertainment, and performing as a device in the making of symbolic goods.

A interação ensino-serviço no processo de formação dos graduandos em fisioterapia da UFPB: a percepção dos docentes

The health paradigm, consolidated in the last century, directed the training of health professionals, educated under the aegis of the Flexnerian training, fragmentary and hospital-centered model. However, it proved to be insufficient to meet the demands of the Unified Health System and the population. In this sense, the National Curriculum Guidelines for Undergraduate health courses emerge as a normative framework in proposing a new professional profile, as well as the recommendation of strategies for the restructuring of curricula and teaching practices, and one of them is the teaching-service integration. Therefore, the aim of this study was to investigate the process of training of Physiotherapy course students of the Federal University of Paraíba with the guiding principle of teaching-service integration, considering DCN. In this sense, the chosen method was a case study with qualitative approach. The sample was intentional, including all faculty members of the permanent staff of the Department of Physiotherapy at UFPB, linked to curriculum components whose practice scenarios occur in the SUS network and time longer than one year in that component. The data collection technique was the semi-structured interview. Data analysis was performed using the content analysis technique. The following categories were considered: professional training for SUS, integration of students to the SUS network services, the relationship between theory and practice in the training of physiotherapists, teaching and health professional partnership in the teaching-learning process and programs of training reorientation and their integration with the course. The results allowed identifying positive points in the teaching-service integration: recognition of the importance of integration activities between university and health services based on the insertion of students in the network, the combined actuation with health service professionals and the opportunity to work in a multidisciplinary team; the existence of structured and organized School Network; participation of students and teachers in government programs that offer the experience of insertion in the labor market. The following weaknesses stood out: difficulties in agreement, planning and evaluation of activities by the service; gap between theoretical and practical activities; lack of definition of roles of teacher and health service professionals in the training process and the fragile relationship of reorientation of vocational training programs with the curricular activities of the course. The teaching-service integration as a guiding principle in the analysis of the formation of physiotherapists reveals limits and possibilities for training that meets the health needs of the population. Thus, the choices of educational institutions regarding the care model have an influence on health practices, as well as the commitment by management and services and the permeability to social control instances decisively contribute to the improvement in the training of future professionals. Thus, the commitment of all involved for the effective change in the training process of health paradigm is indispensable.

A interação ensino-serviço no processo de formação dos graduandos em fisioterapia da UFPB: a percepção dos docentes

The health paradigm, consolidated in the last century, directed the training of health professionals, educated under the aegis of the Flexnerian training, fragmentary and hospital-centered model. However, it proved to be insufficient to meet the demands of the Unified Health System and the population. In this sense, the National Curriculum Guidelines for Undergraduate health courses emerge as a normative framework in proposing a new professional profile, as well as the recommendation of strategies for the restructuring of curricula and teaching practices, and one of them is the teaching-service integration. Therefore, the aim of this study was to investigate the process of training of Physiotherapy course students of the Federal University of Paraíba with the guiding principle of teaching-service integration, considering DCN. In this sense, the chosen method was a case study with qualitative approach. The sample was intentional, including all faculty members of the permanent staff of the Department of Physiotherapy at UFPB, linked to curriculum components whose practice scenarios occur in the SUS network and time longer than one year in that component. The data collection technique was the semi-structured interview. Data analysis was performed using the content analysis technique. The following categories were considered: professional training for SUS, integration of students to the SUS network services, the relationship between theory and practice in the training of physiotherapists, teaching and health professional partnership in the teaching-learning process and programs of training reorientation and their integration with the course. The results allowed identifying positive points in the teaching-service integration: recognition of the importance of integration activities between university and health services based on the insertion of students in the network, the combined actuation with health service professionals and the opportunity to work in a multidisciplinary team; the existence of structured and organized School Network; participation of students and teachers in government programs that offer the experience of insertion in the labor market. The following weaknesses stood out: difficulties in agreement, planning and evaluation of activities by the service; gap between theoretical and practical activities; lack of definition of roles of teacher and health service professionals in the training process and the fragile relationship of reorientation of vocational training programs with the curricular activities of the course. The teaching-service integration as a guiding principle in the analysis of the formation of physiotherapists reveals limits and possibilities for training that meets the health needs of the population. Thus, the choices of educational institutions regarding the care model have an influence on health practices, as well as the commitment by management and services and the permeability to social control instances decisively contribute to the improvement in the training of future professionals. Thus, the commitment of all involved for the effective change in the training process of health paradigm is indispensable.

Influência da interação dipolar nas fases magnéticas de nanopartículas esféricas com estrutura núcleo@camada

Bi-magnetic core@shell nanoparticle has attracted attention several researchers because great applicability that they offer. The possibility of combining different functionalities of magnetic materials make them a key piece in many areas as in data processing permanent magnets and biomagnetics sistems. These nanoparticles are controlled by intrinsic properties of the core and shell materials as well as the interactions between them, besides size and geometry effects. Thus, it was developed in this thesis a theoretical study about dipolar interaction contribution between materials different magnetic properties in bi-magnetic core@shell nanoparticles conventional spherical geometry. The materials were analyzed CoFe2O4, MnFe2O4 e CoFe2 in various combinations and sizes. The results show that the impact of the core dipole field in the shell cause reverse magnetization early its, before of the core, in nanoparticle of CoFe2O4(22nm)@CoFe2(2nm), thereby causing a decrease coercivity field of 65% in comparection with simple nanoparticle of CoFe2O4 (HC=13.6 KOe) of same diameter. The large core anisotropy in conventional nanoparticle makes it the a stable dipolar field source in the shell, that varies length scale of the order of the core radius. Furthermore, the impact of dipolar field is greatly enhanced by the geometrical constraints and by magnetics properties of both core@shell materials. In systems with core coated with a thin shell of thickness less than the exchange length, the interaction interface can hold reversal the shell occurring an uniform magnetization reversal, however this effect only is relevant on systems where the dipole field effects is weak compared with the exchange interaction.

Influência da interação dipolar nas fases magnéticas de nanopartículas esféricas com estrutura núcleo@camada

Bi-magnetic core@shell nanoparticle has attracted attention several researchers because great applicability that they offer. The possibility of combining different functionalities of magnetic materials make them a key piece in many areas as in data processing permanent magnets and biomagnetics sistems. These nanoparticles are controlled by intrinsic properties of the core and shell materials as well as the interactions between them, besides size and geometry effects. Thus, it was developed in this thesis a theoretical study about dipolar interaction contribution between materials different magnetic properties in bi-magnetic core@shell nanoparticles conventional spherical geometry. The materials were analyzed CoFe2O4, MnFe2O4 e CoFe2 in various combinations and sizes. The results show that the impact of the core dipole field in the shell cause reverse magnetization early its, before of the core, in nanoparticle of CoFe2O4(22nm)@CoFe2(2nm), thereby causing a decrease coercivity field of 65% in comparection with simple nanoparticle of CoFe2O4 (HC=13.6 KOe) of same diameter. The large core anisotropy in conventional nanoparticle makes it the a stable dipolar field source in the shell, that varies length scale of the order of the core radius. Furthermore, the impact of dipolar field is greatly enhanced by the geometrical constraints and by magnetics properties of both core@shell materials. In systems with core coated with a thin shell of thickness less than the exchange length, the interaction interface can hold reversal the shell occurring an uniform magnetization reversal, however this effect only is relevant on systems where the dipole field effects is weak compared with the exchange interaction.

Trabalho e família: um estudo da interação de papéis com secretários executivos

The balance between the demands of two important spheres of human life, work and family, has become a challenge due to the pressures of the contemporary that is expanding around the difficulties of reconciling these two comínios. In this sense, this research aimed to understand the work-family interaction in the perception of executive secretaries. The analysis approach used was qualitative research, by worrying about a reality that can not be quantified due to the subjectivity of his goal. The data collection technique used was the semistructured interview to twenty executive secretaries, servants of a Federal Institution of Higher Education. For the understanding and interpretation of the data, we used the technique of content analysis. The results of both analyzes identified the existence of conflict as enrichment in this interaction. The time was identified as the largest generator of conflict work. The overload, relationship stress and conflict emerged as elements common to both domains. As main implications of labor disputes, were revealed: problamas health for secretaries and stress. As main implications of family conflicts emerged: motivation for work, lower performance and lack of concentration. The attempt at balance was identified as the strategy most used by secretaries to minimize work-family conflict. The work-family enrichment was seen as resources that contribute to improving the lives of the secretary in both domains. The opportunity to add knowledge was highlighted as enriching element of work and family values ​​as elements enriching family. The support and experience emerged as enrichment items common to both domains. Regarding the implications of enrichment resulting from the interaction of work and family, the more perceived by respondents were: increased knowledge and skills, material and psychological benefits, improved quality of life and personal and professional fulfillment. From the perception of executive secretaries, work and family spheres of human life are essential and complementary, and that help is contrary, however, this relationship is the primary management of conflicts, ie, how the individual sees and manages the negative side of the work-family

Uma Lectina D-lactose específica da esponja marinha Cinachyrella apion: purificação, caracterização e interação com Leishmania chagasi

Four different sponge species were screened using Ouchterlony agarose gel and immunodiffusion tests to identify cross-reactivity with the polyclonal antibody IgG anti-deglicosilated CvL, a lectin from Cliona varians. Crude extract from the sponge Cinachyrella apion showed cross-reactivity and also a strong haemmaglutinating activity towards human erythrocytes of all ABO groups. Thus, it was submitted to acetone fractionation, IgG anti-deglicosilated CvL Sepharose affinity chromatography, and Fast Protein Liquid Chromatography (FPLC-AKTA) gel filtration on a Superose 6 10 300 column to purify a novel lectin. C. apion lectin (CaL) agglutinated all types of human erythrocytes with preference for papainized type A and O erythrocytes. The haemagglutinating activity is independent of Ca2+, Mg2+ and Mn2+ ions, and it was strongly inhibited by the disaccharide D-lactose, up to a minimum concentration of 6.25 mM. CaL molecular mass determined by FPLC-AKTA gel filtration on a Superose 12 10 300 column and SDS gel electrophoresis was approximately 124 kDa, consisting of eight subunits of 15.5 kDa, assembled by hydrophobic interactions. The lectin was relatively heat- and pH-stable. Leishmania chagasi romastigotes were agglutinated by CaL, indicating that lactose receptors could be presented in this parasite stage. These findings are indicative of the physiological defense roles of CaL and its possible use in the antibiosis of pathogenic protozoa

Construção de modelos de interação in silico e in vitro do inibidor do tipo Kunitz de Adenanthera pavonina L. para as enzimas cisteínicas e serínicas

Serines proteinases inhibitors (PIs) are widely distributed in nature and are able to inhibit both in vitro and in vivo enzymatic activites. Seed PIs in than leguminous are classified in seven families, Bowman-Birk and Kunitz type families that most studied representing an important role in the first line of defense toward insects pests. Some Kunitz type inhibitors possess activities serine and cysteine for proteinases named bifunctional inhibitor, as ApTKI the inhibitor isolate from seed of Adenanthera pavonina. The A. pavonina inhibitor presenting the uncommon property and was used for interaction studies between proteinases serine (trypsin) and cysteine (papain). In order to determinate the in vitro interaction of ApTKI against enzymes inhibitor purification was carried cut by using chromatographic techniques and inhibition assays. The 3D model of the bifunctional inhibitor ApTKI was constructed SWISS-MODEL program by homology modeling using soybean trypsin inhibitor (STI, pdb:1ba7), as template which presented 40% of identity to A. pavonina inhibitor. Model quality was evaluated by PROCHECK program. Moreover in silico analyzes of formed complex between the enzymes and ApTKI was evaluated by HEX 4.5 program. In vitro results confirmed the inhibitory assays, where the inhibitor presented the ability to simultaneously inhibit trypsin and papain. The residues encountered in the inhibitor model of folder structural three-dimensional that make contact to enzymes target coud explain the specificity pattern against serine and cysteine proteinases