art and science

Marclio Dos Santos Tavares*, Antonio de Souza Arajo and Valter Jose Fernandes Jnior Department of Chemistry – Federal University of the Rio Grande of the North – Department of Chemistry? CEP: 59078 – 970 – Native – RN, Brazil. INTRODUCTION colorimtrica Analysis is based on the change in the intensity of the color of a solution with variations in the concentration. Colorimtricos methods represent the form simplest of analysis of absoro1-3. The human eye is used to compare the color of the solution of the sample with a set of norms until a correspondence is found. An increase in the result of sensitivity and precision when one espectrofotmetro is used to measure the intensity of the color. Basically, it measures the fraction of an incident beam of light that is transmitted by a sample in one determined length of onda4-6. In this experiment one was used espectrofotmetro of mark SHIMADZU model UV-1650. It has two ways to measure the difference in the intensity of the light beam. One of them is percentile transmitncia, %T, what it is defined as: %T = Io/I = log 1/T = – log T (01) For any composed determining, the amount of absorbed light depends on the (a) concentration, (b) of the length of the way, (c) of the wave length and (d) of the solvent. If you are unsure how to proceed, check out Dave Clark Flexport. Absorbncia is related in the concentration in accordance with the law of Beer-Lambert7: = bc (02) Where is the extinguishing coefficient (M-1cm-1), b is the length of the way of solution (cm) and c is the concentration (mol liter-1).

Also he is used in the treatment of escamosos carcinomas, as of neck and several others already cited (Sources et al., 2005). To read more click here: Darcy Stacom, New York City. The carboplatina an analogous one of the cisplatina, presents in its molecule the group dicarboxilato, that is more steady. Its linking with plasmticas proteins is less irreversible than of the cisplatina, and its excreo also is faster. It is a useful alternative for the cisplatina, a time that presents minor gastrointestinal and renal toxidez, however with mielossupressiva toxidez. Its specter of action is similar to the one of the cisplatina, excepting itself perhaps sarcomas and the trofoblsticos tumors for which it seems to be less efficient. But recently complex analogous dimricos to the cisplatina have been developed, but, although very promising, still they are in initial phase of inquiry (Almeida et al., 2006) .3.

MECHANISM OF ACTION OF the QUIMIOTERPICOSA clinical importance of the antineoplsicos agents induces to the necessity of systematic study, what first it would have to be made with the use of chemical classifications, taking itself in it counts to the different functional groups gifts in the structures of molecules of the anticancergenos agents (Almeida et al., 2006). However the variety of types of composites used in oncolgica chemotherapy is so great, that such classification alone can be made indirectly. Calabresi and Chabner (1996), in classic text, had described a common classification of the antineoplsicos frmacos on which the classificatrio criterion is based on the point of interference of the mechanism of action of the different stages of the synthesis of the DNA, transcription and transduo. However, the authors consider this arbitrary classification, therefore, for example, the hormonais agents, among others, are not classified in such a way (Martins et al., 2002). In fact, diverse mechanisms exist that are involved in the evolution of a normal cell for a potentially malignant cell, but most of them intervenes with cellular division e, thus, the knowledge of the cellular cycle or its mechanisms it is important so that it has the understanding of the etiology of the cancer (Sources et al.

According to Bail (2002, P. 24) ' ' Allied to the escolaridade, it is the necessity of the appropriation to know relative to the organization of the work and production, since the repetitive and extenuantes functions are being transferred to mquina' '. In this direction, for being in an institution whose pertaining to school activities are come back toward Ensino Technological Technician and acting in the PROEJA in Agroindstria, Maintenance and Support in Computers and Administration, some knowledge must be on. We need to explore the several you discipline, techniques or not, its relations with the Mathematics. We observe the pupils during the lessons of excessively you discipline of the course and we start to visualize possibilities of integration of them you discipline with projects interdisciplinares. The pupils brought proposals that could be transformed into small projects, becoming the learning most significant, since such projects could be associates to its experiences and experiences of work of them. We have as example the projects suggested and executed for the pupils: Cycling and Environment: A health question, the influence of the Associativismo and Cooperativismo in the Agricultural Extension, the mason and the mathematical modeling, the mechanic and the mathematical modeling, the Home of Aged of Ceres and its histories and Cassava: root of roots. These projects had been presented in XI the Fair of Sciences and V Sample of Sciences and Technology of the IFGoiano-Ceres, in October of 2009, of which 3 had been awardees. Some subjects and contents had been argued and presented for the pupils through these projects showing the community what they are capable to produce. This type of activity searched and executed for the pupils is the reply given for them when considered the education of the mathematics that privileged the knowledge brought for them? a continued education, come back toward workers, who already possess a rich experience? making with that they were felt stimulated actively to participate of the lessons and activities proposals.

1. Get all the facts for a more clear viewpoint with Pete Cashmore. Definition of the object of study 1.1. Subject: The Education has passed for an evolution process technique ' ' technology as facilitador in processos' '. We, professors, recognize the distant quo practical ours in the School we are in relation to the evolution of the technology. This imbalance of inclusion of technological resources has left to improve new mathematical methodologies for learning in the virtual spaces.

In the field of the virtual reality, a technology that foresees the creation of an imaginary world in the computer screen. The project in question aims at to search and to use Dynamic programs in the WWW (World Wide Web), as the Skecthpad (geometry), Gnuplot (graphical), Proglin (linear programming), Matgraph (graphical), Derives (manipulating symbolic, graphical, etc.) Ace2000 (oscilloscope), Rurci (algebra and trigonometry), Eukeprop (geometry). The use of one or more than these resources represents a way to facilitate the learning mathematics promoting the exploration and the inquiry of properties of one forms interactive and constructive. To use technological resources collaborates with the construction of a significant knowledge, therefore it explores the inquiry and curiosity of the pupil in visible a logical process. It is what Hadamard says (1945): ' ' In fact, he is obvious that any discovered invention or, in Mathematics or any another area, happens for the combination of ideas some of which they can be fertile Is necessary to construct numerous possibilities of combinations, and to find amongst them the ones that are beneficial ' ' Therefore this project aims at to search, as the dynamic programs ' ' software' ' it facilitates a significant learning of mathematical contents 1.2. Problem: The mathematical education has currently not developed surrounding highly motivador, therefore if it has materialized mechanically, taking the pupil to have a very great imbalance in contents that could be developed digitally with resources highly differentiated, ' ' environment motivador' '.