869 resultados para Social role of the school


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Motivational Interviewing (MI) is a brief evidence-based treatment that is most commonly used to treat addictive behaviors and to encourage diet and lifestyle changes and treatment adherence in health care settings. In recent years MI's use has been expanded to multiple other client populations in clinical psychology, as well as to other sectors, such as in education, and international non-profit work (Hettema at al., 2005). MI was inspired by research that demonstrated a high correlation between therapist application of the client-centered skill of accurate empathy and a reduction in drinking behaviors (Miller et al., 1980). MI contains both relational and technical components that are intended to operate synergistically. Despite a large body of research on MI treatment outcomes, variation in effectiveness has been found among studies, and the active ingredients of MI, particularly the relational aspects, are not well understood. As a result, the use of MI in many treatment settings is limited to the technical components of MI without a theory-based integration of the therapeutic relationship. This paper focuses on the contribution of the relational component to the effectiveness of MI, and explores the synergistic relationship between the technical and relational components of MI. A literature review of MI and the trans-theoretical literature on the therapeutic relationship is followed by two case illustrations. The paper concludes with recommendations for the field.

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Haloferax mediterranei is a denitrifying halophilic archaeon able to reduce nitrate and nitrite under oxic and anoxic conditions. In the presence of oxygen, nitrate and nitrite are used as nitrogen sources for growth. Under oxygen scarcity,this haloarchaeon uses both ions as electron acceptors via a denitrification pathway. In the present work, the maximal nitriteconcentration tolerated by this organism was determined by studying the growth of H. mediterranei in minimal medium containing30, 40 and 50 mM nitrite as sole nitrogen source and under initial oxic conditions at 42 °C. The results showed theability of H. mediterranei to withstand nitrite concentrations up to 50 mM. At the beginning of the incubation, nitrate wasdetected in the medium, probably due to the spontaneous oxidation of nitrite under the initial oxic conditions. The completeremoval of nitrite and nitrate was accomplished in most of the tested conditions, except in culture medium containing 50 mMnitrite, suggesting that this concentration compromised the denitrification capacity of the cells. Nitrite and nitrate reductases activities were analyzed at different growth stages of H. mediterranei. In all cases, the activities of the respiratory enzymeswere higher than their assimilative counterparts; this was especially the case for NirK. The denitrifying and possibly detoxifyingrole of this enzyme might explain the high nitrite tolerance of H. mediterranei. This archaeon was also able to remove60 % of the nitrate and 75 % of the nitrite initially present in brine samples collected from a wastewater treatment facility.These results suggest that H. mediterranei, and probably other halophilic denitrifying Archaea, are suitable candidates for thebioremediation of brines with high nitrite and nitrate concentrations.

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Paper submitted to IRSES II Symposium, Kokaeli, Turkey, June 16-20, 2014.

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Most of electrocatalytic reactions occur in an aqueous environment. Understanding the influence of water structure on reaction dynamics is fundamental in electrocatalysis. In this work, the role of liquid water structure on the oxygen reduction at Pt(1 1 1) electrode is analyzed in methanesulfonic (MTSA) and perchloric acids. This is because these different anions can exert a different influence on liquid water structure. Results reveal a lower ORR electrode activity in MTSA than in HClO4 solutions and they are discussed in light of anion's influence on water structural ordering. From them, the existence of an outer-sphere, rate determining, step in the ORR mechanism is suggested.

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[Introduction.] Necessary reforms towards a deepened and increased European shaped economic, financial and budgetary policy, paraphrased with the term “fiscal union”, could possibly reach constitutional limits. In its EFSF judgment1, the German Constitutional Court, following the Lisbon judgment in which certain government tasks were determined as being part of the “constitutional identity”2, connected the budget right of the parliament via the principle of democracy to the eternity clause of Art. 79 para 3 Basic Law. A transfer of essential parts of the budget right of the German Bundestag, which would be in conflict with the German constitution, is said to exist when the determination of the nature and amount of the tax affecting the citizens is largely regulated on the supranational level and thereby deprived of the Bundestag’s right to disposition. A reform of the Economic and Monetary Union that touches the core of the budget right can, according to the German Federal Court, with regard to Art. 79 (3) of the Basic Law only be realized by way of Art. 146 of the Basic Law, thus with a new constitution given by the people that replaces the Basic Law.3

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The diffraction pattern of Fe3O4 (not shown) confirmed the presence of only one phase, corresponding to magnetite with a lattice parameter a = 8.357 Å and a crystallite size of 16.6 ± 0.2 nm. The diffraction pattern of MGNC (not shown) confirmed the presence of a graphitic phase, in addition to the metal phase, suggesting that Fe3O4 nanoparticles were successfully encapsulated within a graphitic structure during the synthesis of MGNC. The core-shell structure of MGNC is unequivocally demonstrated in the TEM micrograph shown in Fig. 1b. Characterization of the MGNC textural and surface chemical properties revealed: (i) stability up to 400 oC under oxidizing atmosphere; (ii) 27.3 wt.% of ashes (corresponding to the mass fraction of Fe3O4); (iii) a micro-mesoporous structure with a fairly well developed specific surface area (SBET = 330 m2 g-1); and (iv) neutral character (pHPZC = 7.1). In addition, the magnetic nature of MGNC (Fig. 2) is an additional advantage for possible implementation of in situ magnetic separation systems for catalyst recovery.