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Chimica: a arte de transformar a matéria

«CHIMICA. Segundo a accepçaõ commua, he Syuonimo de Alchimia, ou Alquimia. Mas por Chimica ordinariamente entendemos a Arte, que com varias, & sutilissimas operaçoens, reduz todos os córpos naturaes a seus primeiros principios, & em minimas particulas os resolve» O Químico convive diariamente com o laboratório e os objetos ai residentes. Designações como material de vidro ou equipamento fazem parte da termino...

Comparison of a xenogeneic and an alloplastic material used in dental implants ...

Two commercial bone grafts used in dentistry (Osteobiol Gen-Os®, a xenograft of porcine origin, and Bonelike®, a hydroxyapatite based synthetic material), in the form of granules, were characterized and evaluated in vivo regarding the intensity of the tissue inflammatory response. These biomaterials were characterized in terms of morphology, particle size distribution, porosity and pore size, specific surface a...

A study on time elements in a textile and clothing supply chain

The structure and configuration of the textile and clothing supply chains are changed in many parts of the world in response to the global manufacturing scenario. Significantly, the time based performance of the entities has emerged as a strong competitive option in the higher-end market segments. Based on the new situation, a case study is developed here for measuring the elements of time for the various activ...

Factors associated with uncontrolled asthma in Porto Alegre, Brazil

Utilização de diferentes tipos de policloretos de alumínio para purificação de ...

In order to investigate the action of the flocculating agents Panfloc and Panclar a full factorial design 2³ and a Central Composite design 2² were carried out. The control variables were the flocculant concentration, pH and temperature. The response variables were phenolic compounds reduction and spectral area reduction. The best conditions of treatment was hydrolyzate at pH 9 for both coagulants, but the use ...

Técnica de uso dos dispositivos inalatórios em pacientes asmáticos

O efeito de um programa educativo de curta duração no manejo da asma

Avaliação de fatores associados ao não-controle da asma brônquica em pacientes ...

Comparison of Different Cemented Tungsten Carbides Applied to Particle-Board Ma...

Nowadays, many industrial companies have already established procedures to incorporate recycled products in their production lines. According to recent statistics, the wood recycling is growing exponentially, with products like MDF (medium density fiberboard), OSB (oriented strand board) or Particleboards being more and more important in the wood/furniture industry. Many times these products have different type...

Development of a multidimensional system for classification and management of h...

The large amount of information in the medical area creates management problems, being necessary systematic methods for filing and retrieval. With information on the context of clinical records, methods must integrate controlled biomedical terminologies and desirable characteristics oriented to the structure, content and clinical results. The objective is to test the applicability and capacity for retrieval of ...