Secagem de misturas de polpa de frutas tropicais em leito de jorro

Drying of fruit pulps in spouted beds of inert particles has been indicated as a viable technique to produce fruit powders. Most of the processes employed to produce dried fruit pulps and juices, such as Foam Mat, encapsulation by co-crystallization and spray drying utilize adjuvant and additives (such as thickeners, coating materials, emulsifiers, acidulants, flavors and dyes), which is not always desirable. The fruit pulp composition exerts an important effect on the fruit powder production using a spouted bed. In the study by Medeiros (2001) it was concluded that lipids, starch and pectin contents play an important role on the process performance, enhancing the powder production; however, the drying of fruit pulps containing high content of reducing sugars (glucose and fructose) is practically unviable. This work has the objective of expanding the studies on drying of fruit pulps in spouted bed with aid of adjuvant (lipids, starch and pectin) aiming to enhance the dryer performance without jeopardizing the sensorial quality of the product. The optimum composition obtained by Medeiros (2001) was the basis for preparing the mixtures of pulps. The mixture formulations included pulps of mango (Mangifera indica), umbu (Spondias tuberosa) and red mombin (Spondia purpurea) with addition of cornstarch, pectin and lipids. Different products were used as lipids source: olive and Brazil nut oils, coconut milk, heavy milk, powder of palm fat and palm olein. First of all, experiments were conducted to define the best formulation of the fruit pulps mixture. This definition was based on the drying performance obtained for each mixture and on the sensorial characteristics of the dry powder. The mixture formulations were submitted to drying at fixed operating conditions of drying and atomizing air flow rate, load of inert particles, temperature and flow rate of the mixture. The best results were obtained with the compositions having powder of palm fat and palm olein in terms of the drying performance and sensorial analysis. Physical and physicochemical characteristics were determined for the dry powders obtained from the mixtures formulations. Solubility and reconstitution time as well as the properties of the product after reconstitution were also evaluated. According to these analyses, the powder from the mixtures formulations presented similar characteristics and compatible quality to those produced in other types of dryers. Considering that the palm olein is produced in Brazil and that it has been used in the food industry substituting the palm fat powder, further studies on drying performance were conducted with the composition that included the palm olein. A complete factorial design of experiments 23, with three repetitions at the central point was conducted to evaluate the effects of the air temperature, feeding flow rate and intermittence time on the responses related to the process performance (powder collection efficiency, material retained in the bed and angle of repose of the inert particles after the process) and to the product quality (mean moisture content, loss of vitamin C and solubility). Powder production was uniform for the majority of the experiments and the higher efficiency with lower retention in the bed (59.2% and 1.8g, respectively) were obtained for the air temperature of 80°C, mixture feed rate of 5ml/min in intervals of 10 min. The statistical analysis of the results showed that the process variables had individual or combined significant influences on the powder collection efficiency, material retention in the bed, powder moisture content and loss of vitamin C. At the experimental ranges of this work, the angle of repose and solubility were not influenced by the operating variables. From the results of the experimental design, statistical models were obtained for the powder moisture content and loss of vitamin C

Serviço Social e terceiro setor: considerações sobre as atuais relações e condições de trabalho para o Assistente Social em Natal

The present study analyses the actual relations and work conditions found in the third sector in Natal city, in the context of productive restoration and increasingly retraction from the State in providing Social Service before the new approach that has been destined to the social issue. The study talks about the work of the social worker when fighting the different expressions the social issue has, such as social service provision as a way of teamwork associated to work relations and conditions, to accessible resources and quality control management. These are elements that affect and interfere in the accomplishment and in the work of the social worker itself. The State s improvement, according to neoliberal-political precepts and increasingly retraction from the public investment in the areas of social concern (health, social welfare, assistance) and in the wage and employment policy, besides expanding the partnership with the public and private areas, in search for social services with quality, it has diversified the structures of the professional work with the growth of the so called third sector institutions. However, the absorption of the social workers by the third sector groups in general, has as major features the impoverishment of work relations, the maintenance of an unequal salary model, pointing out the deadline contracts and/or single tasks that generate work instability. The research debates, with a critical view and full perspective, over the conception of the third sector, interpreted as an action that expresses functions and values, treated as a real phenomenon generated from the restoration of the capital based on neoliberal principles. This study aims for responding what the established work relations are and under what work conditions the social worker has been fitting in the third sector and how such a reality echoes in the current work conditions for a social work in the city of Natal, before this new model of state intervention that transfers part of the social service provision to distinctive divisions of society, among them the so called third sector. The research results have shown that like the other workers the social worker passes through the same crises, dilemmas, advances and challenges that occur in the world of employment and which are expressed in the drop of salary average in the growth of contemporary contracts, unemployment, and in the ever more selective requirements to one be included in the social spaces, where the professional work is done, having as a result a greater impoverishment of work relations and conditions as well as more vulnerability as a salaried occupation

Instrumentalidade do serviço social: dimensões teórico-metodológica, ético-política e técnico-operativa e exercício profissional

The dissertation proposes a discussion about the instrumentality of the Social Work, in the attempt of visualizing her, as well as the profession, in a totality perspective to the light of the rationality critical-dialetical. Understood as the capacity that the professional subjects acquire of giving answers to the demands that are placed to the profession, itself built partner-historically, in a teleologys conflicts and causalitys. So, it is proposed the discussion of the instrumentality while a group of you know specific, composed essentially by the development of three practical-formative dimensions. The theoretical-methodological refers to the capacity of apprehension of the method and of the theories and, consequently, of the relationship that does with the practice. The dimension ethical-politics concerns the development of the capacity of analyzing the society and the own profession as field of contradictory forces, being considered the character eminently political of the professional exercise, as well as the professional's conscience concerning the social direction that prints in your intervention. And the technician-operative dimension refers more strictly to the technical elements and you score for the development of the intervention. It was looked for to evidence as those dimensions they attend in the professional exercise, starting from the experience lived by the social workers of the Social Attendance Reference Centers, in Natal/RN

Famílias privadas de liberdade: a saga da violência vivenciada por adolescentes que trilham os áridos caminhos da criminalidade

This paper has as its main focus the relation between the infringement act and the adolescents families social economical problematic, who obey the social educational deprivation of freedom at CEDUC in the district of Pitimbu RN, establishing in the theme Children and Adolescents, with the objective of showing how these families breed in the social economical and cultural political aspect. It also seizes who those adolescents are and their family members in their social aspect and as those families face their daily activities. The focus on the social matter, family, adolescent, infringement act, exclusion, inclusion formed the analysis categories which made myths and reality possible, taking into consideration the infringement act in our society. The data collection showed that those families conditions of life are of poverty. Families originated from low social classes, 62.5 % coming from the countryside and living with a daily income ranging from R$ 0,31 to R$ 8,31. Their level of education is low; there is lack of human and citizenship rights and no professional qualification whatsoever. It questions the degrading social exclusion suffered by millions of Brazilian people due to social, political and infringement economical problems. Has this favored the infringement practice? How to confirm the families lack of competence having the social vulnerability? Are the Public Political Institutions really performing the way they should? Are they really carrying out their role as they should? We have noticed that from then on, the necessity of understanding the exclusion/inclusion suffered not only in an imprecise and empty way, but understood as processes of integrative exclusion or ways of delinquency, where the excluding is not only the only one who has lack of material care but the one who is seen or recognized as a person, is not being treated as one. The effort of this paper provided an approach to our object, and the seizing of a close relation between the infringement act and the exclusion process or inclusion suffered, which are submitted to families of those adolescents who deprive of freedom

A Construção/reconstrução das competências profissionais do assistente social diante da gestão do serviço social da indústria SESI a partir dos anos 90

L´étude du processus de construction / reconstruction des compétences de l´assistant social sous la gestion du SESI (Service Social de l´ Industrie), Natal/RN, dès la moitié des années 90 a réaffirmer la perspective que ce processus est le résultat de déterminations macrosociétaires qui sont présents, particulièrement au Brésil, aussi que, la façon par laquelle l´assistant social, le professionnel inscrit dans la division sociale et technique du travail, fait développer son perfectionement technique et intelectuel dans un milieu de nouvelles structures productives qui éxigent un nouveau profil du professionnel face à la crise du capital et de l´État. Cette recherche, de nature qualitative et quantitative, a eu lieu par de combinaisons de recherche bibliographique et empirique. Les sujets ont été huit assistants sociaux et six travailleurs administratifs du SESI, Natal/RN. Les donnés ont été obtenus par des interviews semi-structrées. On a analisé les changements qui sont arrivés dans les gestions du SESI et les compétences qui sont éxigées de l´assistant social ; l´influence du milieu socio-occupationel sur l´action professionnelle et sur le processus de construction/reconstruction de compétences; l´agrandissement de demandes institutionnelles pour l´assistant social par rapport à la prestation de services ; aussi que la constatation de l´importance de ce professionnel, sa hardiesse, mais aussi quelques limites et défis affrontés face à la qualification stimulé par le SESI, en amenant le professionnel dans un processus contradictoire de qualification et disqualification professionelle

O trabalho dos assistentes sociais nos hospitais universitários Onofre Lopes (HUOL) e Hospital Ana Bezerra (HUAB) da UFRN: os desafios da formação permanente

This paper discusses the process of training social workers in the environment of University Hospitals- UH s. These hospitals provide space for professional education aiming to achieve a critical and purposeful professional performance. As environments for training, producing knowledge and providing essential services to the public, these hospitals require all members of the healthcare team to have a continued education. Understanding that training has to be a priority and conceived as constant pursuit for update through the interaction of Teaching, Researching and EPO ( Education and Public Outreach). These dimensions provide approximations and domain of theoretical and methodological, giving special importance to understanding the social reality, a sine qua non condition to the work of the Social Service professional. The main goal of the research was to comprehend how the continuous professional education of the social worker occurs and it s relation with the articulations involving Teaching, Researching and EPO, as significant elements for the job of the social workers in the Hospital Universitário Ana Bezerra and Hospital Universitário Onofre Lopes/UFRN. The research was conducted through a literature review, documentary and field inquiries with semistructured interviews including the group of 09 (nine) social workers from the aforementioned hospitals, taking as a reference the quantitative and qualitative approach to analyze mediations that stand between the subject and the social context. The results indicate that social workers in these university hospitals have their insertion beyond the care provided to patients in performance in the areas of education through preceptorship to undergraduate students and social work residents in and extension projects with low insertion in area of research. We note that there is a recognition of the importance of a continuous education, indicating that the qualification of social worker is essential in transforming their daily professional practice to better monitor, critically explain the peculiarities of public health in its everyday showing of how unequally access is provided to the users of the public health system

O elo entre o serviço social e o judiciário: demandas, desafios e contribuições na defesa de Direitos

Unveiling the link between the Social Services and the Judiciary is the object of this work, since the judiciary is constituted as one of the socio-occupational areas of the profession in the sphere of the state, seize the demands placed on professionals which work becomes relevant , considering that these are embody the multiple expressions of social issues, constituting a challenge to social work, while influencing the contributions that the profession has engendered in the defense and expansion rights. It constitutes an analysis from the standpoint of theoretical and methodological basis Qualiquantitative taking for granted the rights violations against children and adolescents in their social, legal and historical guide to the topic. For this we used a theoretical Marxist Behring (2009), Colman (2008), Faleiros (2205), Faria (1999, 2001), Fávaro (2007, 2008), Iamamoto (1985, 1992, 2002, 2006, 2007) Yazbek, Marx (1983), Netto (1994), Nicholas (1984), Pequeno (2009), Rizinni (1997, 2008), Santos (2009), Sales (2006), Telles (1999), Tonet (2009), among others. Besides literature, empirical research conducted through semi-structured interviews using a script and written records and systematic observation / free during interviews. The subjects were 06 social workers from the area of the judiciary to act on Justice for Children and Youth, Family Court and NOADE in Natal / RN. The research aims to analyze the demands and challenges of Social Services and their contribution in ensuring and enforcing rights in courts nowadays. The route established between knowledge and method involves conceptual analysis on the Judiciary, Social Services, and Child and Adolescent Rights. Seize-up in this study the existing contradictions in confronting the multiple expressions of social issues in the context of the judiciary. The research allowed us to identify relevant aspects regarding the challenges and demands placed Social Service; limits on defense and expansion of their rights and contradictions within sociojurídico. For being one of the judiciary institutions that comprise the system warranty rights, social workers also face difficulties in implementing the professional doing since the ills posed by current sociability capital focus in everyday spaces socio-occupational presented here. On the other hand, is commendable acting those protagonists who believe, defend and contribute to the defense and expansion rights

A articulação da instrumentalidade no exercício profissional do assistente social em Natal/RN

Presents the discussion of practical and social dimensions that comprise the instrumentality (formative; theoretical and intellectual; investigative; technical-instrumental; and ethical-political) Social Work from research in social and occupational areas in which they operate social workers in Natal in Rio Grande do Norte. Chapters expose positions, experiences and reality of the respondents and the theoretical constructs and analytical, to understand: the evaluation of the training process, relating the teaching practice, the role of knowledge and the importance of research in professional practice of social workers, the seizure of technical-instrumental dimension, articulating demands, duties, powers and instruments, as elements that comprise it, and finally the ethical-political dimension, discussing the challenges of ethics and materialization of the ethical-political in daily work. In this sense, the dissertation sought add to production and academic debate about the work of the social worker, as well as contribute to their own professional practice, revealing how professionals articulate the practical and social dimensions that comprise the instrumentality in their daily work

Serviço social na educação: análise das tendencias dos perfis pedagógicos do assistente social

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

O Serviço Social e a exclusão/inclusão social dos portadores de HIV/AIDS :demandas e desafios nos hospitais públicos

This research presents the labors developed by the Social Service unto socially excluded HIV/Aids positives at public hospitals in Rio Grande do Norte (RN). It purposes to identify and to analyze the demands brought by the holder onto the Social Service professional as well as the challenges the latter face to minister to the former. It privileges, from the methodological viewpoint, the qualitative and quantitative analysis with the application of questionnaires, direct observation, semi-structured interviews and bibliographic references. Data were collected from 12 (twelve) social assistants who work at Giselda Trigueiro Hospital in Natal (7) and Rafael Fernandes Hospital in Mossoró (5). The central hypothesis that guided this study is that the social inclusion/exclusion process experienced by the HIV/Aids positive on society implies a demand for the Social Service that is inserted in the public health context (specially in HIV-referred public hospitals), whose agents, however, when attempting to answer those demands, meet obstacles due to both the precariousness of public health services and the social complexity that concerns the HIV/Aids epidemic. Results point out that, de facto, the HIV/Aids epidemic, because of the social exclusion/inclusion process to which the holder is subject results a demand for the social agents at hospitals. Demands rise principally from the patient s life condition, considering the increasing pauperization in the epidemic context. As to what it is concerned, social assistants, responding to the needs, come across concrete twofold challenges: the illness in itself, for all social, negative aspects that make part of quotidian life of holders; and the precarious state of the public health service in RN State, since that working conditions are unsatisfactory

O Benefício da Prestação Continuada BCP: as condições de vida dos usuários no Município de Macau/RN

This rescearch comprises a study of the life condictions of the users of the Continuous Installment Allowance in the city of Macau, RN. This benefit has been predicted by the Federal 1988 Constitution and regulated by the Social Assistance Organic Law (LOAS), but it has been carried out only since january 1996. It consists of an amount of half a minimum salary given to old-age and handicapped peoplewhose families mathch the per capita income criterion of less than 0,25 minimum salary. It is a least-income policy relud by the principle of the smallest elegibility. The study focused on aged or handicapped people who were receiving the BPC from 1996 to 2004. Through a quatitative analysis, the life reality of these users has been critically examined. In order to achieve this, it has been necessary to trace their social and economical profile. The research revealed the precarious life conditions of the aged and handicapeed people after they were given the BPC, as well as their interpretation of this politcal directive, and also the need for revision of the eligibility criteria so that a public policy of integral service to the basic needs of the social being can be accomplished

Adolescentes em conflito com a lei: a saga das punições na rota da exclusão social

This work deals with the problematic of the determinations that contribute to become the adolescents involved with law. Thus, in this research, the social exclusion is apprehended as one of the most important determining to understand this problematic, once we defend that it is part of the trajectory of this adolescent's life since its birth as a punishment that starts before they becoming envolved in act's that break the law. It is still questioned the discussion of the reduction of the penal age, viewed aa a proposal that will contribute to perpetuate the repression. The objectives of the research were: analyze the problematic of adolescents in conflict with law, where social exclusion is seen here as a main category. The research also aims to understand the situation towards social exclusion and that this public is undertaken in the state of Rio Grande do Norte, more specifically in Natal. This is dane through analysis of the profile of adolescents that are submitted to the treatment at Centro Integrate de Atendimento ao Adolescente Acusado de Ato Infracional - CIAD in 2005. This is dane on arder to identify of the State's and society's actions towards this issue, how it has prevailed in analyzing if there is punishing or social protection. The research also contributed with discussion towards the non penal reduction of for underage minors. The approach realized if of qualiquantitative nature. The research was realized with 190 male adolescent subjects, age ranging from 12 to 21 that were interns at CIAD in the year of 2005. The research shows that their fundamental rights (education, health, amongst others) are disrespected on a daily basis by the State. The State prioritizes economic issues, making social inequality more profound. The main argument is that this problematic has its main oring in the social exclusion and it is imposed to the adolescents as a punishment before thes have been involved with the law going on top of the social protection. When the adolescent goes from being the victim to executioner, the Statute of Children and Adolescents is questioned by many sectors that defend the reduction of penal minority as a solution to reduce the country's violence. Thus, it was aimed here to discuss arguments that point to non exclusion, discrimination and repression. It is proposed that the State should assume children and adolescents as a priority, implementing what the statute establishes as well as assures related to the fruition of denied rights as a way to prevent their future involvement with violence

Interação gestual em ambiente residencial: estudo, concepção e desenvolvimento

Control and automation of residential environments domotics is emerging area of computing application. The development of computational systems for domotics is complex, due to the diversity of potential users, and because it is immerse in a context of emotional relationships and familiar construction. Currently, the focus of the development of this kind of system is directed, mainly, to physical and technological aspects. Due to the fact, gestural interaction in the present research is investigated under the view of Human-Computer Interaction (HCI). First, we approach the subject through the construction of a conceptual framework for discussion of challenges from the area, integrated to the dimensions: people, interaction mode and domotics. A further analysis of the domain is accomplished using the theoretical-methodological referential of Organizational Semiotics. After, we define recommendations to the diversity that base/inspire the inclusive design, guided by physical, perceptual and cognitive abilities, which aim to better represent the concerned diversity. Although developers have the support of gestural recognition technologies that help a faster development, these professionals face another difficulty by not restricting the gestural commands of the application to the standard gestures provided by development frameworks. Therefore, an abstraction of the gestural interaction was idealized through a formalization, described syntactically by construction blocks that originates a grammar of the gestural interaction and, semantically, approached under the view of the residential system. So, we define a set of metrics grounded in the recommendations that are described with information from the preestablished grammar, and still, we conceive and implement in Java, under the foundation of this grammar, a residential system based on gestural interaction for usage with Microsoft Kinect. Lastly, we accomplish an experiment with potential end users of the system, aiming to better analyze the research results

Estratégias de Produção in vitro de Bioinseticida Viral: influências do Isolado, da Cinética e do Modo de operação

Societal concerns about environmental sustainability has lead to the development of ecologically-friendly alternatives to chemical insecticides for crop protection. One such alternative is biological pest control. In particular, baculoviruses are well suited as insect biopesticides due to their narrow host specificity and relative ease of propagation. In Brazil, the baculovirus Anticarsia gemmatalis nucleopolyhedrovirus (AgMNPV) is the main biological control agent employed for the soybean pest, Anticarsia gemmatalis. This baculovirus biopesticide is currently produced using caterpillars, but increasing market demand for the product has encouraged the development of an in vitro manufacturing process, which can be scaled up to much higher virus productivities. In this study, three wild-type AgMNPV isolates (AgMNPV-2D, AgMNPV-MP2 and AgMNPV-MP5) and a recombinant form (vAgEGT-LacZ) were characterised in terms of occlusion body (OB) production and infection kinetics, to enable future optimisation of the in vitro production process. These viruses were propagated using a Spodoptera frugiperda (IPLB-SF21) insect cell line grown in shaker-flask batch cultures. Among the virus isolates tested, AgMNPV-MP5 was found to be the best producer, yielding (5.3±0.85)x108 OB/mL after 8 days post infection. The characterisation of vAgEGT-LacZ propagation in suspension cell cultures has not been previously reported in the literature; hence it became the main focus for this thesis. In particular, it was carried out a study on the effect of the multiplicity of infection (MOI) on OB production. Five successive batches were performed getting a final production (8.9±1.42)x1014 occlusion bodies, considering that production is related for a bioreactor with final volume of 10m3. A low MOI associated with a fed-batch process for vAgEGT-LacZ production was found to support a 3-fold higher OB yield when compared to the default batch process (1.8x107 and 5.3x107 OB/mL, respectively). This yield is competitive with regards to the production process.

Parâmetros físico-químicos de estrelas com planetas na missão CoRoT

In the present study we compute the atmospheric parameters (Teff , log g and vmic, [Fe/H]) and chemical abundance of 16 ions (Fe I, Fe II, O I, Si I, Na I, Mg I, Al I, Ca I, Ti I, Co I, Ni I, Rb I, Zr I, Ba II, La II and Cr I) for 16 solar-like stars with masses between 0:8 and 1:2 Mfi aproximatedly, including 10 planet-host stars detected by the CoRoT Space Mission. For this study, we use data from the ESO public archive: (i) high resolution spectra (R 47000) from the UVES spectrograph on the VLT/UT2-ESO (for 7 stars, covering the wavelength range 3450-4515 Å and 5500-9400 Å) and (ii) high resolution spectra from HARPS spectrograph on the La Silla-ESO 3.60 m telescope (for 9 stars, covering the wavelength range 4200-6865 Å). Our spectral analysis is based on MARCS models of atmosphere and Turbospectrum spectroscopic tools. On the base of the computed parameters, the referred abundances appears to follow the same behavior of the solar curve abundances. Further, one observes a signifficant correlation between the abundance ratio [m/Fe] and condensation temperature (Tc) of refractory elements (Tc > 900 K). The behavior of the projected rotational velocity (v sin i) versus the computed abundances [m/Fe] is also analyzed, presenting no clear trends. This study oers additional constraints to trace the evolutive history of solar-like stars with planets, including the search for chemical dierences between stars with and without transit planets and anomalies in the studied abundances