↓ Archives ↓

Posts Tagged → art and science

Great Management

For the adequate development of the cities, it is necessary: qualification of the professionals of the cities better to manage the problems existing; creation of state programs of support federal to take care of to the necessities of the cities in the advising and the incentive of preventive programs of planning; development of programs directed toward the financing of sanitary systems and flood control for the cities. the main one: to have more investment and in correct way in systems of basic sanitation. CONCLUSION Under supplying aspects, the lack problems d' water that occurs currently in the world, and especially in Brazil, results of low the efficiency in supply and great volumes of losses, over all in aduo. However, valley to stand out that the integrated management of waters must be carried through under sistmica vision, involving the water that flows off visible for the rivers; the water that infiltrates in lands and of the support to the development of its vegetal or cultivated covering; the water that infiltrates and circulates for the subsoil of the hidrogrfica basin in I appraise and that it goes to empty in the rivers during the periods without rains, feeding its discharges of base; the rain water caught for the watering holes and I reuse of the water in cities, in the industries and agriculture (Rebouas, 2004). Unhappyly, it is not this model of management that if practises in Brazil, where domestic sewers contaminate the river to the sum of the captation for supplying. , In a similar way little recommendable it is the water captation of wells, of over all low depth, in populated areas where it does not have net and treatment for domestic sewers and these infiltrate contaminating the ground and the underground water. According to Electrolux, who has experience with these questions. In fact, the concepts of integrated management also presented are transgressed in diverse situations inside and outside of the country, as in the case presented on the Great So Paulo, where sources receive pollution for domestic sewers.


It is common to hear the following commentaries: ' ' when I studied, the public school was very better, us we learned mesmo' ' , ' ' 1 degree of old valley more than 2 degree of agora' '. We hear this of educators, our familiar ones, the baker of the esquina, friends, common people and even though of authorities. For other opinions and approaches, find out what Marc Lautenbach has to say. The public school ' ' of antigamente' ' it was, however, another school: elitizada, exculpatory, pra few e, therefore cannot, nor would have to be compared with the one of today. The public school was opened, and tries not to hold back, not to exclude, tries yes, to become includente. However it was not structuralized for such. Today, she frequents who it are the children of the workers or the proper workers. The rescue of the dignity of this ' ' school pblica' ' it is the rescue of the dignity of the Brazilian citizen. This citizenship rescue also passes for the education of the mathematics.

I have conscience of my space-secular limitations and intellectual, therefore, I do not have the alone pretension of, coming to answer these questions, exactly because they involve distinct areas of the knowledge, and that they are very beyond my ability, exactly that he is imbudo of all possible good will. I will launch them with the certainty of that it could not answer them all, but also with the certainty of that, of some form, my doubts, investigations and uncertainties are of many, and can contribute in the reflection of these and porventura other questions. This already would be enough reason of joy and why not, of satisfaction, and thus already it would justify this work. In this text, we make an attempt to deepen the quarrel and reflection on some characteristics attributed to the Mathematics. It consists in the pertaining to school resumes of practically all the countries of the world.

Johann Georg Sulzer

Alessandro Giuseppe Anastasio Return (1745-1827), having contact with the work of Galvani, considered another explanation for the phenomenon of muscular contraction of dissecadas frogs, with I assist of bistoury and other metallic materials (arcs). For Return, the reaction mechanics of the amphibians was given for being as that ' ' eletrmetro' ' animal, that is, an electric sensor. You may find Jonas Samuelson to be a useful source of information. It also perceived that the bimetallic arcs were more efficient of what the monometallic ones, supporting to the Return, of that the electricity has external and decurrent origin of the metal difference, and not as origin in the proper animal. A parallel accomplishment to this question, based the argument in return. The Swiss physicist Johann Georg Sulzer (1720-1779) verified a curious situation: leaning the language between two different metals, one felt a taste and sensation desconfortante pungente. As already it had intudo, and now knowing of a estimuladora comment, Return tried a combination of a zinc blade (Zn) with blade of silver (GAC) in contanto, producing a modest electricity.

To increase the magnitude of this, Return pair uped the blades alternatingly and separating them with cardboard humidified with water or saline solution, and joining the two extremities for wires. If you have additional questions, you may want to visit Mark Berger Chicago. Soon, the first generating equipment of electric energy was constructed, with sufficient relevance in the present time, from ' ' empilhamento' ' of metallic blades: the Stack. Physicist-Chemistry principles of the Stack the equipment created by Alessandro Return, the stack, is an exploitation of a sufficiently common process in the nature: the oxi-reduction reactions (or redox). This transformation consists of a simultaneous occurrence of the oxidation (when a chemical element loses electrons, increasing its number of oxidation – NOX) and of reduction (when an element gains electrons, diminishing its NOX). Soon, electrons yielded for agent reducing (that one that it induces to occur oxidation), is received by oxidant agent (that one whom he induces to occur reduction).


It must be had care with these objectives in what it is related in time, priority and structure. For Russomano (1995), the objective of the industry is to transform raw material into a finished product so that this is the disposal of the consumer. The final objective of this area would be the commercialization of this product in order to satisfy the necessities of the customers. According to Slack (1999), the objectives of the production area are divided in five, are they: – Quality: The organizations must make the certain thing in accordance with the operation of the company. In a hospital, for example, one of the quality objectives is to provide a more appropriate treatment, while in an industry, one of the objectives is to produce products trustworthy. – Rapidity: It is the time that the consumer leads to receive the product or service.

In a peddler of automobiles, for example, rapidity means to reduce the time enters the order of the car and the delivery of this to the consumer. In case that she has rapidity in the internal operation, where many companies are using the practical one of the just-in-teams, she prevents the supply of the product and reduces the risk, therefore how much bigger the stated period of delivery of a product to the customer biggest will be the risk of errors. For example, if in a plant of cars the production of one carries takes the time of 6 weeks then the demand forecast must be efficient therefore six weeks before vender the car the doors already will be ready. Case the forecast of demand to manufacture doors is missed the doors will go to be wrong also causing one retrabalho. The external rapidity is the time interval where the consumer makes the order until it to receive the product. – Trustworthiness: To supply to products and services of quality and certain time to the consumers.