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Akademický článek

A DIVULGAÇÃO VOLUNTÁRIA DE INFORMAÇÕES SUSTENTÁVEIS: UMA ANÁLISE COMPARATIVA DAS EMPRESAS ESPANHOLAS E BRASILEIRAS

Autor: Marta Cristina P. Grecco, Marco Antonio F. M. Filho, Liliane C. Segura, Isabel-Maria G. Sanchez, Luis R. Dominguez

Publikováno v: Revista de Contabilidade e Organizações, Vol 7, Iss 17 (2013)

A importância atual da sustentabilidade no campo corporativo tem tornado as práticas de RSC um aspecto fundamental para obter legitimidade social e satisfazer as expectativas sociais. Nesse contexto, a divulgação é considerada como uma ferrament

Externí odkaz: https://doaj.org/article/d611e74c364645f3a14b732f0a3573b6

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Akademický článek

THE VOLUNTARY DISCLOSURE OF SUSTAINABLE INFORMATION: A COMPARATIVE ANALYSIS OF SPANISH AND BRAZILIAN COMPANIES A DIVULGAÇÃO VOLUNTÁRIA DE INFORMAÇÕES SUSTENTÁVEIS: UMA ANÁLISE COMPARATIVA DAS EMPRESAS ESPANHOLAS E BRASILEIRAS

Autor: Marta Cristina P. Grecco, Marco Antonio F. M. Filho, Liliane C. Segura, Isabel-Maria G. Sanchez, Luis R. Dominguez

Publikováno v: Revista de Contabilidade e Organizações, Vol 7, Iss 17 (2013)

The current importance of sustainability in the corporate field has made CSR practices a key aspect to achieve social legitimacy and fulfil social expectations. In this context, disclosure is considered as a tool to inform stakeholders about the acti

Externí odkaz: https://doaj.org/article/aa81b45604ae412bb17f33b2d76a0e43

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Dependence of La2O3 content on the nonlinear electrical behaviour of ZnO, CoO and Ta2O5 doped SnO2 varistors

Autor: José Arana Varela, Elson Longo, I. P. Silva, Alexandre Zirpoli Simões, F. M. Filho, Leinig Antonio Perazolli

Publikováno v: Materials Letters. 61:2121-2125

The effects of La 2 O 3 on the properties of (Zn, Co, Ta) doped SnO 2 varistors were investigated in this study. The samples with different La 2 O 3 concentrations were sintered at 1400 °C for 2 h and their properties were characterized by XRD, SEM,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37523804e86676ae2caf688e03e8731c
https://doi.org/10.1016/j.matlet.2006.08.025

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Mechanically activating formation of layered structured bismuth titanate

Autor: José Arana Varela, F. M. Filho, Čedomir Jovalekić, Carlos O. Paiva-Santos, Biljana Stojanović, Alexandre Zirpoli Simões, Z. Lazarevic

Publikováno v: Materials Chemistry and Physics. 96:471-476

Bismuth titanate—Bi4Ti3O12 (BIT) with wide application in the electronic industry as capacitors, memory devices and sensors is the simplest compound in the Aurivillius family, which consists of (Bi2O2)2+ sheets alternating with (Bi2Ti3O10)2− pero

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98fd5c4ca8ccda5c33021ed90755ba38
https://doi.org/10.1016/j.matchemphys.2005.07.038

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Nonlinear electrical behaviour of the Cr2O3, ZnO, CoO and Ta2O5-doped SnO2 varistors

Autor: Andreas Ries, L. Perazolli, Alexandre Zirpoli Simões, F. M. Filho, Elson Longo, José Arana Varela

Publikováno v: Ceramics International. 32:283-289

The effects of Cr2O3 on the properties of (Zn, Co, Ta)-doped SnO2 varistors were investigated in this study. The samples with different Cr2O3 concentrations were sintered at 1400 8C for 2 h. The properties of (Zn, Co, Ta, Cr)-doped SnO2 varistors wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a97c71463ac115d31a42882dd5c4d653
https://doi.org/10.1016/j.ceramint.2005.03.004

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Nonlinear characteristics of Cr2O3, WO3, ZnO and CoO doped SnO2varistors

Autor: José Arana Varela, Andreas Ries, Leinig Antonio Perazolli, Carla dos Santos Riccardi, F. M. Filho, Mal Margionte, Alexandre Zirpoli Simões

Publikováno v: Materials Letters. 60:142-146

SnO2 based ceramics doped with 1.0 mol% ZnO, 1.0 mol% CoO, 0.1 mol% WO3 and 0.05 mol% Cr2O3 show varistor behavior with nonlinear coefficient α = 33, breakdown electric field EB = 12.5 kV/cm, leakage current I = 0.63 mA/cm2 and average grain size of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2157be3c46bc0ee2a63476d3b1ef5621
https://doi.org/10.1016/j.matlet.2005.08.006

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Adsorption of the inulinase from Kluyveromyces marxianus NRRL Y-7571 on Streamline® DEAE resin

Autor: Maria Isabel Rodrigues, P. S. C. Lima, F. M. Filho, Y. Makino

Publikováno v: Brazilian Journal of Chemical Engineering, Volume: 22, Issue: 4, Pages: 539-545, Published: DEC 2005
Brazilian Journal of Chemical Engineering v.22 n.4 2005
Brazilian Journal of Chemical Engineering
Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
Brazilian Journal of Chemical Engineering, Vol 22, Iss 4, Pp 539-545 (2005)

The enzyme inulinase is used to produce oligosaccharides and fructose, with up to 95% fructose in a single stage of inulina hydrolysis. With in the aim to purify the enzyme, studies on the conditions of enzyme adsorption in an expanded-bed column wer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87ae2c4bb05df615826b42f7da441319
https://doi.org/10.1590/s0104-66322005000400006

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Investigation of electrical properties of tantalum doped SnO2 varistor system

Autor: Andreas Ries, L. Perazolli, Eder Carlos Ferreira de Souza, Elson Longo, Mario Cilense, Alexandre Zirpoli Simões, José Arana Varela, F. M. Filho

Publikováno v: Ceramics International. 31:399-404

Ta2O5 doped SnO2 varistor systems containing 0.5 mol% ZnO and 0.5 mol% CoO were prepared by mixed oxide method. Considering that ZnO and CoO oxides are densification additives only the SnO2� ZnOCoO ceramics cannot exhibit electrical nonlinearity. A

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3515e765e7f4a8303b3c54b4ace2659
https://doi.org/10.1016/j.ceramint.2004.06.004

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Fatigue-free behavior of Bi3.25La0.75Ti3O12 thin films grown on several bottom eletrodes by the polymeric precursor method

Autor: José Arana Varela, Elson Longo, F. M. Filho, Alexandre Zirpoli Simões, Andreas Ries, Carla dos Santos Riccardi

Publikováno v: Applied Physics Letters. 85:5962-5964

Fatigue-free Bi3.25La0.75Ti3O12 (BLT) thin films were grown on LaNiO3,RuO2, and La0.5Sr0.5CoO3 bottom electrodes in a microwave furnace at 700 °C for 10 min. The remanent polarization (Pr) and the drive voltage (Vc) were in the range of 11–23μC�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f27b090840f0299f18e079b4e569546
https://doi.org/10.1063/1.1834999

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Thermal analysis as a tool in the study of GMM in Angra dos Reis region, Rio de Janeiro, Brazil

Autor: H. F. M. Filho, L. V. Zuquette, J. M. P. Garcia

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Angra dos Reis/Itaguai region of the state of Rio de Janeiro, Brazil, is a very problematic area due to the instability of slope and landslides, due to geological and geomorphological conditions and to the significant and continuous human occupation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ff6ac6d0e7245cd101b6d2fd3afd57d

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