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Mecanismo de solidificação de ligas do sistema Al-Mn-Ce ricas em Al sob diferentes taxas de resfriamento
(Universidade Federal de São Carlos, 2015-07-07) Coury, Francisco Gil; Kiminami, Claudio Shyinti; https://lattes.cnpq.br/5443002033733395; https://lattes.cnpq.br/8609825406277730
The aircraft industry search for light weight materials to produce lower density parts for increased energy efficiency of fuels was focused in recent years in searching new alloy systems with high mechanical strength and with the ability of producing low-density coatings. The objective of this work was to select a promising system for manufacturing alloys with high mechanical strenght but also capable of forming high hardness samples, for different compositions. The chosen system was mapped in a matter of microstructures formed under different cooling rates, thereby determining the formation region of each phase depending on the cooling rate required for their production. The Al-rich compositions in Al-Mn-Ce system were chosen and their solidification was studied under various cooling rates, from high to low. For high cooling rates, the formation of the crystalline phase Al20Mn2Ce was observed, this is a metastable phase that forms in these Al-rich samples under high cooling rates. The results presented here allow a reinterpretation of the literature data about the phases present in other studies, it is clear that in all cases, the phase present is Al20Mn2Ce, this phase may even coexist with a quasicrystalline phase, the binary Al-Mn quasicrystal, however there is no beneficial effect by adding Ce to the formation of quasicrystals. This phase can also form in copper mold cast samples, in this work produced in the form of cylinders with different diameters, whose yield strength can exceed 800MPa. This phase is relatively thermal stable due to a layer of the Al6Mn phase formed on decomposition of the ternary phase that constitutes a protective cover. Solidification of samples produced under lower cooling rates were also studied. This part of the study enabled the development of a new fraction of the phase diagram of this system.
Caminhando apesar dos limites : o cuidado parental à criança com retinopatia da prematuridade
(Universidade Federal de São Carlos, 2015-07-07) Facio, Beatriz Castanheira; Wernet, Monika; https://lattes.cnpq.br/6056127658896265; https://lattes.cnpq.br/3725746286698199
Prematurity has been considered a public health problem. It is a condition, associated with complications, that is among the three leading causes of death in children under age five. It is a risk factor for the development of retinopathy of prematurity (ROP), a vascularization disorder of the immature retina that occurs in eighteen thousand premature infants annually in Brazil, ten percent of which develop visual impairment. Having a premature child with visual impairment due to the retinopathy of prematurity impacts family dynamics. This study aims to analyze the influence of interactions between parents (mother and father) and health professionals in the care of the child with ROP. The theoretical reference is Symbolic Interactionism and the methodological framework is Narrative Research. The data was collected through individual, in depth interviews led by two moments: characterization of the subjects, with elaboration of genogram and eco-map and obtaining the narrative of the phenomenon in focus, through the following proposition: 'I believe that, in function of the prematurity and ROP of your child, you have met with various health professionals. Tell me about your relationship with them and how it interfere in nurturing (child's name). The location of the subjects, parents (father and mother) of children with retinopathy of prematurity, was performed by the snow ball strategy. Questions concerning the characterization of the subjects were an opportunity to create a table with demographic data of both parents and obstetric data from mothers. In addition to a second table concerning children‟s demographics, conditions of birth and received diagnoses during hospitalization in the neonatal intensive care unit. The analysis of parental narratives allowed to list "Walking despite the limits" as the central storyline, supported by the themes "Child‟s Partner" and "(Un)welcoming" (subdivided into Informational and Emotional). These depict the struggle of the parents to nurture the child with ROP before the interactional context with professionals in the studied scenario. We conclude that the interactions with professionals characterized as mostly limited to parental care, especially for the lack of communication and information affecting the creation of bonds, emotional care and the development of parenting skills. On the other hand, interactions with the child and internalized reflections acted as motivating, resulting in partnership actions and stimulating their development. Limitations pointed solely to bringing only parental perspective with almost homogeneous characterization of participants, probably due to the use of snow ball strategy ( probability sampling technique that involves indication of potential subject).The study expands the qualitative evidence in the context of retinopathy of prematurity, with innovative character for lean events inherent to the experience of having / caring for a child with ROP, contemplating the perception of parents (women and men), a fact that breaks the tendency to hear only mothers. The emphasis on interaction has strengthened the value and role of dialogue, of language, of intersubjective interactions as care constituents and thus deserving investment, being still a challenge en route to qualification of Health.
Cinema e educação : produção e democratização do audiovisual com crianças e adolescentes em Curitiba
(Universidade Federal de São Carlos, 2015-07-07) Stecz, Solange Straube; Riscal, Sandra Aparecida; https://lattes.cnpq.br/0328618752218708
The starting point of this study is the project "Children and Animated Film", held by the “Cinemateca de Curitiba” between 1976 and 1983 that innovated the relationship between cinema and education in municipal schools. Its innovative character, allow us to compare it to contemporary audiovisual projects, which production and enjoyment of work towards audiovisual democratization. The main view expressed here is that cinema in its artistic dimension, educational and humanistic builds bridges between educators and filmmakers working in the perspective of education as the practice of freedom. Evaluate the relationships between cinema and education requires us to pass beyond the awareness and criticality of the cinematic look of the children considering the school as a space for development and enjoyment of cinema as art. It also allow us think the role of the film-maker in school and how their technical knowledge / aesthetic contributes to the process. The main objective of this study is to reflect on the development of relations between cinema and the education in Curitiba, its practices and actors, with reference to the project, "Child and Animation Film" and contemporary experiences in audiovisual. The theory reference is based on education concepts, philosophy, sociology and anthropology, from key authors such as Alain Bergala, for whom the school should be a place of incorporation and enjoyment of cinema as art. Love the movie and understand it requires the adoption of a pedagogy of creation, not just of contemplation.
A fototerapia como mecanismo potencializador no tratamento da obesidade
(Universidade Federal de São Carlos, 2015-07-07) Aquino Junior, Antonio Eduardo de; Parizotto, Nivaldo Antonio; https://lattes.cnpq.br/5527703735628408; Bagnato, Vanderlei Salvador; https://lattes.cnpq.br/4947860249518663; https://lattes.cnpq.br/8720193315570177
Obesity is a multifactorial disease, which has endogenous and exogenous origin, and it comprises 95% of all cases. One of the treatments takes into account the negative energy balance, which is the ratio between reduction in consumption and increased energy expenditure. The objective of this study was to analyze the effects of phototherapy associated to (low-level laser therapy) concurrent exercise (aerobic / resistance), at moderate intensity in women with exogenous overweight and obesity. Were selected 64 women, with aged 20-40 years, body mass index between 30 and 40 kg/m2, divided into two groups, which were described as: Sham (concurrent exercise + absence of light) and phototherapy (concurrent exercise + presence of light). It is important to note that at no time volunteers know of the absence of light during the process in Sham group. The exercise protocol parameters followed de Piano (2012), Obesity Study Group member (GEO) - UNIFESP. The irradiation parameter was 100mW, 60mW/cm2, 16 minutes of treatment time, at a wavelength of 808nm and applied in the regions: anterior region - abdominal and quadriceps; posterior region - gluteus and biceps femoral, soon after exercise, 3 times per week for 48 weeks. Thus, the association between phototherapy and moderate intensity exercise was effective in relation to clinical obesity situation, reducing the body weight, body fat deposits, lipid profile and the relationship of glycemic profile / insulin levels and decreasing the possibility insulin resistance. Thus, the action of the technology used in the context of clinical obesity is a new mechanism for multidisciplinary clinical practice in the treatment of obesity.