PLGA Based Drug Carrier and Pharmaceutical Applications: The Most Recent Advances

Poly(lactic-co-glycolic acid) (PLGA) is one of the most successful polymers that has been used to produce medicines, such as drug carriers (DC) [...]</jats:p

Fermi-Frenet coordinates for space-like curves

We generalize Fermi coordinates, which correspond to an adapted set of coordinates describing the vicinity of an observer's worldline, to the worldsheet of an arbitrary spatial curve in a static spacetime. The spatial coordinate axes are fixed using a covariant Frenet triad so that the metric can be expressed using the curvature and torsion of the spatial curve. As an application of Fermi-Frenet coordinates, we show that they allow covariant inertial forces to be expressed in a simple and physically intuitive way.Comment: 7 page

CINEMA NA ESCOLA = MOVIES AT SCHOOL

Este texto descreve o projeto Cinema na Escola, que compõe a proposta do Núcleo de Ensino da UNESP, na qual a Universidade atua em parceria com as escolas públicas e comunidade, com o objetivo de fomentar práticas educativas inovadoras e, sobretudo, criar mecanismos de aproximação da universidade com a escola e comunidade e dessa com a universidade. Portanto, este Projeto trabalha com a exibição e debate de filmes na Unesp e após aos alunos da escola Sergio Leça, situada no bairro Aeroporto III, em Franca/SP. Conta com a participação de dois alunos bolsistas da UNESP, câmpus de Franca, além de alunos e professores colaboradores, os quais têm participado ativamente no planejamento e desenvolvimento das atividades. Como resultado, destaca-se que o referido projeto iniciou em abril deste ano (2011) e, portanto, está em andamento, mas por meio das avaliações bimestrais feitas pela equipe responsável com os envolvidos é possível observar que os filmes têm proporcionado momentos de lazer e descontração, mas, além disso, o que mais se destaca é a possibilidade dos adolescentes a partir das mensagens fílmicas falarem dos seus sentimentos, das suas angustias, dos seus problemas, dos seus sonhos e esperanças e a partir daí teorizam a respeito, debatem e criam mecanismos para um modelo de educação que considere a realidade vivida pelos educandos.Palavras-chave: cinema. educação. escola. comunidade. Serviço Social. trabalho.  ABSTRACTThis text describes the project "Cinema na Escola" (Movies at School), according to the proposal of the Teaching Center of UNESP, in which the University acts in partnership with the public schools and community with the aim to foment innovative educational practices and mainly to create approach mechanisms between the university and the community. Therefore, this Project works with the exhibition and debate of films at Unesp and then the students from the school Sérgio Leça, located in Aeroporto III neighborhoods, in Franca/SP. It counts on the participation of two scholars from UNESP , Campus of Franca, besides collaborating teachers and students, who have been participating actively in the planning and development of the activities. Consequently, the referred project began in April of this year (2011), therefore,it has been under process.But through the bimonthly evaluations done by the team responsible with those involved , the films have been providing moments of leisure and fun, furthermore, the main aspect is the adolescents' possibility of describing their thoughts, distress , problems, dreams and hopes as they theorize over the subject, discuss and create mechanisms for an education model which considers the reality lived by the students.Keywords: movies. education. school. community. Social Work. work

Deconfinement transition in protoneutron stars: analysis within the Nambu-Jona-Lasinio model

We study the effect of color superconductivity and neutrino trapping on the deconfinement transition of hadronic matter into quark matter in a protoneutron star. To describe the strongly interacting matter a two-phase picture is adopted. For the hadronic phase we use different parameterizations of a non-linear Walecka model which includes the whole baryon octet. For the quark matter phase we use an $SU(3)_f$ Nambu-Jona-Lasinio effective model which includes color superconductivity. We impose color and flavor conservation during the transition in such a way that just deconfined quark matter is transitorily out of equilibrium with respect to weak interactions. We find that deconfinement is more difficult for small neutrino content and it is easier for lower temperatures although these effects are not too large. In addition they will tend to cancel each other as the protoneutron star cools and deleptonizes, resulting a transition density that is roughly constant along the evolution of the protoneutron star. According to these results the deconfinement transition is favored after substantial cooling and contraction of the protoneutron star