DO FORNECIMENTO DOS SERVIÇOS PÚBLICOS PELO ESTADO

O presente artigo tem a finalidade de demonstrar o que são serviços públicos e a importância dessas atividades para toda a coletividade, sendo regido tal instituto pelo regime de Direito Público, instrumento este que atende o interesse público. Também é verificado como se dá a prestação dos serviços públicos e se os mesmos são realizados com qualidade ou não para os administrados. E por fim, quais seriam as soluções dos problemas da prestação dos serviços públicos e quais seriam as condições necessárias para que o Estado possa funcionar como fornecedor desses serviços. Palavras-chave: Serviço Público, Coletividade, Regime de Direito Público, Qualidade

Direito e inteligência artificial

Divulgação dos SUMÁRIOS das obras recentemente incorporadas ao acervo da Biblioteca Ministro Oscar Saraiva do STJ. Em respeito à Lei de Direitos Autorais, não disponibilizamos a obra na íntegra.Localização na estante: 34:004.8 D598eOrganizado por: Paola Cantarini, Willis Santiago Guerra Filho e Viviane Coêlho de Séllos Knoerr

Genomic aberrations in borderline ovarian tumors

<p>Abstract</p> <p>Background</p> <p>According to the scientific literature, less than 30 borderline ovarian tumors have been karyotyped and less than 100 analyzed for genomic imbalances by CGH.</p> <p>Methods</p> <p>We report a series of borderline ovarian tumors (n = 23) analyzed by G-banding and karyotyping as well as high resolution CGH; in addition, the tumors were analyzed for microsatellite stability status and by FISH for possible 6q deletion.</p> <p>Results</p> <p>All informative tumors were microsatellite stable and none had a deletion in 6q27. All cases with an abnormal karyotype had simple chromosomal aberrations with +7 and +12 as the most common. In three tumors with single structural rearrangements, a common breakpoint in 3q13 was detected. The major copy number changes detected in the borderline tumors were gains from chromosome arms 2q, 6q, 8q, 9p, and 13q and losses from 1p, 12q, 14q, 15q, 16p, 17p, 17q, 19p, 19q, and 22q. The series included five pairs of bilateral tumors and, in two of these pairs, informative data were obtained as to their clonal relationship. In both pairs, similarities were found between the tumors from the right and left side, strongly indicating that bilaterality had occurred via a metastatic process. The bilateral tumors as a group showed more aberrations than did the unilateral ones, consistent with the view that bilaterality is a sign of more advanced disease.</p> <p>Conclusion</p> <p>Because some of the imbalances found in borderline ovarian tumors seem to be similar to imbalances already known from the more extensively studied overt ovarian carcinomas, we speculate that the subset of borderline tumors with detectable imbalances or karyotypic aberrations may contain a smaller subset of tumors with a tendency to develop a more malignant phenotype. The group of borderline tumors with no imbalances would, in this line of thinking, have less or no propensity for clonal evolution and development to full-blown carcinomas.</p

Integrated motor drives: state of the art and future trends

With increased need for high power density, high efficiency and high temperature capabilities in Aerospace and Automotive applications, Integrated Motor Drives (IMD) offers a potential solution. However, close physical integration of the converter and the machine may also lead to an increase in components temperature. This requires careful mechanical, structural and thermal analysis; and design of the IMD system. This paper reviews existing IMD technologies and their thermal effects on the IMD system. The effects of the power electronics (PE) position on the IMD system and its respective thermal management concepts are also investigated. The challenges faced in designing and manufacturing of an IMD along with the mechanical and structural impacts of close physical integration is also discussed and potential solutions are provided. Potential converter topologies for an IMD like the Matrix converter, 2-level Bridge, 3-level NPC and Multiphase full bridge converters are also reviewed. Wide band gap devices like SiC and GaN and their packaging in power modules for IMDs are also discussed. Power modules components and packaging technologies are also presented

Preparation of colloidal BEA zeolite functionalized with Pd Aggregates as a precursor for low dimensionality sensing

The preparation of palladium (Pd) metal clusters stabilized in colloidal suspensions of BEA zeolite nanocrystals is studied. This procedure involves the reduction of the palladium cations in the zeolite pores that is conduced by 60Co gamma radiolysis. The formation of small sized clusters for Pd2+ impregnated and ion-exchanged zeolite suspensions is proved by UV-Visible spectroscopy. The spectral evolution highlights that larger size palladium particles are formed in the impregnated than in the ion-exchanged sample. For the ion-exchanged sample, palladium particle size reveals smaller owing to the steric limitation imposed by the zeolite framework

Lebensmittelbestrahlung

The conference was a combined event and at the same time was a meeting of the FAIR programme of the EU, under the responsibility of the General Directorate XII, participating countries including Iceland, Norway, Hungary, and Switzerland in addition to the 15 EU member states. Under this roof, research work is sponsored in the fields of food technology, fishing industry, agriculture, forestry, and water resources management. Also, financial support is available for the mid-range food and agricultural industry, or for projects promoting rural development. There currently are over 120 transnational FAIR projects, involving more than 2000 researchers in 233 EU-sponsored research projects devoted to food aspects, some having been presented at the conference. (orig./CB)Die Tagung ist zugleich auch eine Veranstaltung des FAIR-Programmes der EU, das von der Generaldirektion XII betreut wird. Neben den 15 EU-Mitgliedstaaten sind noch Island, Norwegen, Ungarn und die Schweiz beteiligt. Forschungsarbeiten in den Bereichen Lebensmitteltechnologie, Fischerei, Land-, Forst- und Wasserwirtschaft werden ueber Kooperationsvorhaben gefoerdert; daneben wird auch direkt die mittelstaendische Lebensmittel- und Agrarindustrie gefoerdert; daneben wird auch direkt die mittelstaendische Lebensmittel- und Agrarindustrie gefoerdert sowie Projekte der laendlichen Entwicklung finanziert werden. Die FAIR-Projekte bestehen zur Zeit aus ueber 120 transnationalen Vorhaben, mehr als 2000 Forscher sind Teilnehmer an insgesamt 233 EU-Forschungsvorhaben im Lebensmittelbereich; darunter auch Teilnehmer der Tagung. (orig.SR)SIGLEAvailable from TIB Hannover: RN 2898(99-01) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman

Elucidation of Pt clusters in the micropores of zeolite nanoparticles assembled in thin films

Platinum clusters are prepared by γ radiolysis of beta zeolite suspensions (Pt-Beta) in the presence of a templating agent (tetraethylammonium hydroxide, TEAOH). Further, the Pt-Beta suspensions were stabilized with methyl cellulose and deposited in thin films with a thickness of 200 nm on silicon wafers. Elucidation of the size, distribution, and stability of the Pt clusters in the colloidal suspensions and thin films is provided by high-resolution transmission electron microscopy (HRTEM) combined with grazing incident X-ray diffraction (GI-XRD) measurements. The lateral length of the Pt clusters immobilized in the channels of the beta nanocrystals is between 1 and 2 nm. The presence of crystalline fringes with spacings of 0.23 and 1.26 nm corresponding to cubic Pt and zeolite beta are clearly seen in the HRTEM. The homogeneous distribution of the clusters along the film thickness is confirmed by GI-XRD measurements at two penetration depths. Besides, the location of the Pt clusters in the channels of beta nanoparticles is studied by FTIR spectroscopy. The Pt clusters confined in the channels of beta crystals decrease the total micropore volume and also lower the water sorption capacity in comparison with pure beta zeolite