DNA Melanina

When melanossomo is full of melanina, starts to receive the name from melanina granule. This last migra for the prolongations of the melancitos and is deposited in the cytoplasm of the queratincitos, that in turn, serve as melanina deposit. The melanina granules will go to merge themselves with the lisossomos of the queratincitos, being thus, the cells most superficial of the epidermis do not possess melanina. In the epithelial cells the melanina granules are in supernuclear localization, protecting, in this way the DNA against the actual damages for the solar rays. Other illnesses that affect the defense system generating illnesses, as melasma or cloasma, melanociticos hipercromias, nerves and melanoma. Causes or Etiology vitiligo still is an illness of unknown cause therefore no matter how hard the inquiries advance did not obtain to know the reason therefore the main one that it would join everything in a coherent explanation where incases the different factors is unknown.

Not if it can affirm until today that it has origin in the genetic predisposition, a time that this is only observed in only 30% of the cases in the same family but still thus the hypothesis was not discarded. They exist, however, some etiolgicas hypotheses that see vitiligo as a reply autoimune or associated the neurognicos factors, as well as the appearance of what it can be interposed by a variety of precipitantes causes Acreditava that vitiligo appears for the first time during a traumatic event, as an accident, loss of job, the death of a member of the family, serious solar burnings, or still a terrible illness. When the cause affects the imunolgico system, taking the body to react and starts eliminating pigment of the skin. The trauma leads in an area of the skin seems to around cause new spots – for example of the ankle due to friction with the footwear.

Porto Alegre

Methodology the research was based on studies of following authors Jack M. Fletcher, et al, Kamii. Constance, et al, and articles and teses published in site. A priori, it emphasized on the history of the field of the learning upheavals, its origin, characteristics and concepts. In second, we stand out as the children acquire established numerical concepts in research of Kamii, Constance.

(2002), and learning upheaval, detaching the genetic discalculia, that deal with a neurological riot that affects the ability with numbers and makes with that the person if confuses in mathematical operations, numerical formulas, sequences, numerical countings, signals and even in the use of the day to day mathematics, and factors that can cause the learning difficulty. 4. Consideraes Final the upheaval of learning in mathematics is possible to be observed since the daily pay-school, therefore the child already presents some signal of riot, when she presents difficulty in answering the mathematical relations proposals for the professor in classroom, more still she is early for a necessary diagnosis. From the seven or eight years, with the introduction of the specific symbols of the mathematics and the basic operations she only is that the symptoms if become more visible. 13 We must have the care to analyze if the problem is in the pupil or if the form as the professor elaborates the statements of the question is adjusted to the cognitiva age of the child. In other cases the difficulty really can be in the child and is about a mathematical upheaval? the discalculia, intervening significantly with the pertaining to school income or activities of the daily life that demand mathematical abilities. The aid of the educator in the learning of these pupils with discalculia is very important, considering games in classrooms, solidary being, to respect the time of the pupil, and in exercises that involve mathematical problems it is important to use concrete situations of easy agreement for the pupil. It is necessary that the educator, when suspecting of a discalclico in its group, looks orientation of a professional qualified for accomplishment of a disgnostic evaluation/with a team to multidiscipline.

14 5. Bibliographical references BARKLEY, Russel. the Upheaval of Deficit of Attention/Hiperatividade? TDAH: complete guide for parents, professors and professionals of the health. Porto Alegre. Artmed publishing company, 2002. FLETCHER, Jack M. et al. learning upheavals of the identification to the intervention. Porto Alegre. Artmed Publishing company, 2009. KAMII, Constance. et al .crianas small reinventam arithmetical: implications of the Theory of Piaget. Porto Alegre. Artmed publishing company, 2002.