Analysis of computing open source systems

Graphical user interfaces (GUIs) are critical components of today's open source software. Given their increased relevance, the correctness and usability of GUIs are becoming essential. This paper describes the latest results in the development of our tool to reverse engineer the GUI layer of interactive computing open source systems. We use static analysis techniques to generate models of the user interface behavior from source code. Models help in graphical user interface inspection by allowing designers to concentrate on its more important aspects. One particular type of model that the tool is able to generate is state machines. The paper shows how graph theory can be useful when applied to these models. A number of metrics and algorithms are used in the analysis of aspects of the user interface's quality. The ultimate goal of the tool is to enable analysis of interactive system through GUIs source code inspection.

Modifying fish gelatin electrospun membranes for biomedical applications: cross- linking and swelling behavior

Development of suitable membranes is a fundamental requisite for tissue and biomedical engineering applications. This work presents fish gelatin random and aligned electrospun membranes cross-linked with glutaraldehyde (GA). It was observed that the fiber average diameter and the morphology is not influenced by the GA exposure time and presents fibers with an average diameter around 250 nm. Moreover, when the gelatin mats are immersed in a phosphate buffered saline solution (PBS), they can retain as much as 12 times its initial weight of solution almost instantaneously, but the material microstructure of the fiber mats changes from the characteristic fibrous to an almost spherical porous structure. Cross-linked gelatin electrospun fiber mats and films showed a water vapor permeability of 1.37 ± 0.02 and 0.13 ± 0.10 (g.mm)/(m2.h.kPa), respectively. Finally, the processing technique and cross-linking process does not inhibit MC-3T3-E1 cell adhesion. Preliminary cell culture results showed good cell adhesion and proliferation in the cross-linked random and aligned gelatin fiber mats.

Capital Intelectual: sua divulgação no setor bancário em Portugal

The importance of intangible resources has increased dramatically in recent years comparing to tangible ones. The economy in which we live is the result of competitive pressures that have imposed the implementation of business at an international level as well as a requirement in the application of sophisticated technologies that allow us to follow this fast evolution. In this age of information and innovation organizations will only survive if they are inserted in a global network of strategic relations, generically called as the network economy by Lev (2003). The service sector has stood out against the more traditional sectors of the economy. The intensive use of knowledge and a strong customer orientation created a new reality in today’s organizations: a growing importance attached to innovation, to the quality of products and services offered, to the information and communication technologies adopted, and to the creativity and particular abilities of human resources. The concept of intangible assets is more common in an accounting language and intellectual capital is most often applied in the context of management, being associated with a more comprehensive, multidimensional approach, representing all the knowledge that the institution owns and that it applies in the form of expertise, the creativity and organizational competencies that lead to innovation and to the sustained attainment of future economic benefits. An analysis of the scope of intellectual capital is fundamental to take more appropriate management decisions so that a more appropriate accounting treatment could be given by the accounting standardization organizations. This study intends to analyse the practices of information disclosure of the intellectual capital in the banking sector in Portugal, complementing the analysis of the disclosure of intangible assets in the context of accounting standards with the disclosure of intellectual capital in the context of organizational management. In particular, our main aims are to identify the extent of disclosure of intellectual capital made by banks in Portugal and also to identify the factors that determine such a disclosure. The disclosure in the context of accounting standards will be studied by checking the disclosure of intangible assets through the items listed in the International Accounting Standard 38 developed by the International Accounting Standards Board. The context of management was analysed by means of creating a voluntary disclosure index based on assumptions of the model Intellectus, developed by the Centro de Investigación sobre la Sociedad del Conocimiento – Instituto de Administración de Empresas (CIC-IADE) of the Universidad Autónoma of Madrid, and of the model Intellectual Capital Statement (made in Europe) (InCaS), both promoted by the European Commission and that we have adapted to the banking sector. When analysing the disclosure of intangible assets based on the context of accounting standards and the voluntary disclosure of intellectual capital, this study has tried to raise awareness about the importance of issuing reports on the intellectual capital as an alternative tool to take management decisions in the existing organizations and reflects the transparency and legitimacy that these institutions seek through a more extensive and more detailed information disclosure of their intellectual capital. Based on a complimentarily of economic theories, together with social and political theories, we tried to check the extent, evolution and tendencies of the compulsory disclosure of intangible assets and of the voluntary disclosure of the intellectual capital analysed in the period 2001-2011. Banks characteristics were also analysed in order to deduce those factors that determine or promote a larger disclosure in this sector. Based on these objectives, we adopted a longitudinal approach to explore the extent and the development of the disclosure of intangible assets as well as the factors that have determined it. Furthermore, we sought to assess the impact of the adoption of IAS 38 in the financial statements of the organizations in this sector. The disclosure index created on the basis of the disclosure requirements stated in IAS 38 from IASB was applied to the consolidated financial statements of the seventeen banks that rendered their statements in Portugal from 2001 to 2009. Since the information disclosed in the context of accounting standards may not have an important role as a management tool once it was not able to reflect what really contributes to the competitiveness and organizational growth, the voluntary disclosure of the intellectual capital was analysed according to the information obtained from the 2010 annual individual reports of the banks operating in Portugal in that year and from their respective websites in 2011. We tried to analyse the extent of the voluntary disclosure of the intellectual capital and of each of its components, human capital, structural capital and relational capital. The comparative analysis of their annual reports and their web pages allowed us to assess the incidence of the disclosure and discover what channel the banking sector focuses on when disclosing their intellectual capital. Also in this analysis the study of the disclosure determinants has allowed us to conclude about the influence of particular characteristics in the voluntary disclosure of the intellectual capital. The results of the analysis to the extent of the disclosure of intangible assets in the consolidated financial statements of the banking groups in Portugal in the period 2001-2009 have shown an average information disclosure of 0.24. This information disclosure evolved from an average value of 0.1940 in 2001 to 0.2778 in 2009. The average value is 0.8286 if it is only considered the disclosure of the intangible assets that the banks possessed. The evolution of this index means an increase in the average disclosure from 0.7852 in 2001 to 0.8788 in 2009. From the first results that are related to the extent of the disclosure of intangible assets in the financial statements, we can verify that the banking groups present a low disclosure level of these resources. However, when considering the disclosure of only the intangible assets that each institution owns, the disclosure level appears to be in compliance with the disclosure requirements for this sector. An evolution in the disclosure of intangible assets for the period considered was confirmed, showing an increase in the information disclosure of intangible assets in 2005, the year in which the accounting rules for intangible assets changed. The analysis that focused on the disclosure in the context of management tried to understand the extent, the incidence and the determinants of the voluntary information disclosure of intellectual capital in the annual reports of 2010 and on their web pages in 2011, studying the 32 banks operating in Portugal in this period. The average voluntary disclosure of the intellectual capital in the 2010 annual reports is 0.4342 while that in web pages is 0.2907. A review of the components of the intellectual capital allowed us to assess the importance that the banks confer to each of these components. The data obtained show that the relational capital, and more specifically the business capital, is the most disclosed component by banks in Portugal both in the annual reports and in their institutional web pages, followed by the structural capital and, finally, by the human capital. The disclosure of the human capital and the structural capital is higher in the annual reports than that in the websites, while the relational capital is more disclosed in the websites than in the annual reports. The results have also shown that the banks make a complementary use of both sources when disclosing information about their structural capital and relational capital but they do not show any information about their human capital in their websites. We tried to prove the influence of factors that could determine the accounting disclosure and the voluntary disclosure of the intellectual capital in this sector. The change in the IASB accounting rules as from January 1st 2005 gave a greater disclosure of accounting information of intangible assets in the financial statements of banks. The bank size and corporate governance measures have statistically proved to have an influence on the extent of the accounting disclosure of intangible assets and on the voluntary disclosure of the intellectual capital. Economic and financial variables such as profitability, operating efficiency or solvency were not determinants of information disclosure. The instability that the banking sector has experienced in economic and financial indicators in recent years as a result of the global financial markets imbalance has worsen indicators such as profitability, efficiency and solvency and caused major discrepancies in the economic situation between banks in Portugal. This empirical analysis has contributed to confront the disclosure required by accounting rules performed in the financial statements of organizations with that performed in the main disclosure media which is available for entities and which is increasingly requested in the process of taking management decisions. It also allowed us to verify whether there is homogeneity between institutions in the fulfilment of the requirements for information disclosure of intangible assets. However, as for voluntary disclosure of intellectual capital, there are large disparities in the disclosure extent between organizations. Regardless of this sector specific characteristics, the voluntary disclosure of intellectual capital made by banks in Portugal follows the trends in other sectors and the practices adopted in other countries, namely regarding the amount of information disclosed, the incidence of the disclosure on the indicators of relational capital and the importance of variables such as size as determinants of disclosure of intellectual capital. For a further knowledge in this field, we created a specific index for the banking sector, considering appropriate indicators for an incisive, comprehensive analysis in order to consider the most relevant indicators of intellectual capital components. Besides, confronting the analysis of disclosure in the context of accounting standards with the study of voluntary disclosure brought a new analysis approach to the research on intellectual capital disclosure. With this study, we have also intended to raise greater awareness of the need for harmonization in the intellectual capital disclosure on the part of the regulatory banking authority by means of a demanding, consistent and transparent report of intellectual capital with simple, clear, objective indicators so that those interested in disclosing intellectual capital information in the organizations in this sector may obtain more harmonized and comparable information. A research on the disclosure quality of intellectual capital, together with the application of other analysis methodologies in this sector, might be a promising approach for future research. Applying the voluntary disclosure index to the same sector in other countries may also contribute to the knowledge of disclosure practices in different geographical environments. We highlight the relevance of further studies contributing to the harmonization and consistency in the presentation of an intellectual capital report so as to enable organizations to disclose the resources that contribute most to their competitiveness and growth.

Disclosure of Intangible Assets: an Empirical Study of Financial Corporations in the Iberian Peninsula

The purpose of this paper is to analyse, firstly, to what extent intangible assets in the consolidated accounts of seven Portuguese banks and seven Spanish banks between 2006 and 2009 are disclosed and, secondly, to analyse what the most influential factors are in the above mentioned disclosure. In order to do this, before reviewing the existing literature and on the basis of other studies on this topic, a disclosure index has been created based on the requirements related to the intangible assets as stated in IAS 38. Then, two statistical analyses have been made: a univariate one for each of the explanatory variables and a multivariate one, in which all variables have been analysed. Both analyses led to the conclusion that the disclosure index of intangible assets is 0.96, where the bank dimension and the internationalization degree are the variables that are considered explanatory of the variation of the disclosure index in the regression analysis.

Divulgação de informação sobre os ativos intangíveis: evidência empírica nos bancos em Portugal no período 2001-2009.

The main objectives of this investigation is to analyze the disclosure of information about intangible assets during a period of nine years, namely the extension or level, as well as their evolution and possible alterations verified upon them, that derived from the adoption in 2005, of the international norm in order to elaborate the consolidated accounts of banks. Through the verification of the disclosure of intangible assets. Taking into account items from International Accounting Standard (IAS) 38 from the International Accounting Standards Board (IASB), the consolidated financial statements from seventeen banks, presenting consolidated accounts in Portugal uninterruptable between 2001 and 2009 were analyzed. The results obtained through the construction of an index, elaborated from this effected, reveled an average of disclosure of information on intangibles of 0.24 during the period. The level of general disclosure evolved from an average of 0.1940 in 2001 to 0.2778 in the year 2009. The intangibles generated internally had an average of disclosure of 0.1592 and the intangibles acquired had an average value of 0.2927. A growth in the extension of disclosure of intangibles upon the consolidated financial statement of banks during period analyzed, being this growth more accentuated in 2005 and 2006, which correspond to the first years of adoption in Portugal of international norm endorsed by the European Union through the Regalement 1606/2002, of July 19, the designed IASB-UE norms.

Inmuebles_ clasificación, valoración y reconocimiento inicial según el IASB

Las normas internacionales de contabilidad asientan en cuatro bases fundamentales: Reconocimiento; Valoración; Presentación y Divulgación. Los principales aspectos a considerar en los inmuebles son su reconocimiento y valoración, es decir, encontrar su valor y decidir entre capitalizar (reconocer en la contabilidad) o “despesar” (llevar a la cuenta de pérdidas y ganancias). En el presente trabajo abordaremos de forma muy simple el tratamiento contable de las normas internacionales relacionadas con el inmovilizado, abordando apenas su valoración y su reconocimiento inicial. Nuestro punto de partida son las IAS 16, IAS 40 y IAS 38, además del análisis de otras normas que están asociadas para el proceso de valoración y reconocimiento de los bienes inmovilizados.

Medição do capital Intelectual – uma meta da Nova Economia

A informação e a comunicação provocaram a abertura a um mercado global, produziram e semearam conhecimento e os mercados evoluíram e incentivaram a competitividade e a inovação. As empresas mais competitivas são as que usam novas tecnologias de informação, as que apostam nos recursos humanos qualificados, as que evoluem na investigação e as que se centram na estratégia e nas ligações estratégicas. Estas empresas debatem-se com um novo activo que adquire cada vez mais importância e relevo no seu dia-a-dia, tornando-se, em algumas delas, o principal factor de produção. Segundo Stewart (1998, p.92) “o capitalismo intelectual necessita desesperadamente de uma linguagem prática, caso contrário cairá num charco de lodo verbal sem sentido“. O objectivo deste trabalho centra-se na análise de alguns dos métodos desenvolvidos para valorizar o activo já consagrado como o que mais contribui para o desenvolvimento empresarial e social: o capital intelectual.

O Conhecimento Organizacional nas empresas da Nova Economia – uma revisão da literatura

O conhecimento está intrisecamente associado à acção, ou seja, a práticas executadas tendo por base informação relevante e contextual. O conhecimento organizacional é obtido pelo desempenho na aplicação de experiências adquiridas, capacidades e habilidades individuais ou colectivas e knowhow técnico que conduz à inovação e à obtenção de rendimentos de forma sustentada. A inovação é um imperativo nas empresas de hoje e, sendo inovação sinónimo de utilidade, então a chave da competitividade das empresas é o conhecimento útil (Odriozola, 2000). O conhecimento é um activo organizacional, pois os processos, rotinas e cultura empresariais têm fixado em si conhecimento. As organizações são o local ou contexto onde se processa a interacção de diversos saberes, devendo as mesmas, incentivar a sua concretização e partilha para que a inovação e competitividade sejam conseguidas. Só assim conseguirão sobreviver numa nova economia onde o principal factor de produção é o conhecimento.

Divulgação dos activos intangíveis nas contas consolidadas das sociedades

Este trabajo tiene como objetivo realizar un análisis empírico relativo a los factores determinantes en la divulgación de los intangibles en las cuentas consolidadas de las principales entidades bancarias portuguesas y españolas, de acuerdo con los requisitos de divulgación establecidos en la IAS 38. Para ello, se ha analizado el contenido de los Estados Financieros de siete bancos portugueses y siete españoles durante el periodo comprendido entre los años 2006 y 2009. Sobre la base de otros estudios que han abordado este tema, se ha intentado verificar qué factores influyen en el grado de divulgación de los intangibles, llegando a la conclusión de que el valor invertido en los mismos y el índice de rentabilidad son determinantes en el nivel de su divulgación. En efecto, observamos que el volumen de intangibles representados en el balance está relacionado positivamente con el índice de divulgación, sin embargo el ratio de rentabilidad de la entidad bancaria tiene una asociación inverso, es decir, se revela que el índice de divulgación aumenta cuando la rentabilidad del banco disminuye.

O conhecimento como a maior fonte de riqueza das organizações – uma revisão da literatura

Las empresas realizan su actividad en una economía marcada por la globalización, las exigencias de los mercados y las presiones de la competencia. En este contexto, el conocimiento organizacional se constituye como un elemento fundamental tanto para la generación de riqueza como para su supervivencia, circunstancia que pretendemos resaltar en este trabajo. El conocimiento puede convertirse en la clave para el éxito de las empresas para las cuales la innovación se presenta como punto de partida para el mantenimiento de su competitividad y, por ende, su permanencia en el mercado. Es precisamente en el seno de las organizaciones donde el mencionado conocimiento se crea, se desarrolla, se implementa, se transfiere y se gestiona. Los procedimientos y rutinas empresariales están impregnados de conocimiento de donde se deriva la importancia de, en primer lugar, la función del aprendizaje organizacional (se captura los retos del mercado y se adaptan los procedimientos a los mismos), en segundo lugar, el reconocimento del valor que, para la organización, tiene el conocimiento y, por último, la generación de las condiciones necesarias para que el mencionado conocimento sea generador de ventajas competitivas. Cabe a la gestión del conocimiento la maximización de la eficiencia de los activos de conocimiento.

Extensão da divulgação voluntária do capital intelectual nos grupos bancários

Com o presente estudo procuramos analisar a extensão da divulgação voluntária do capital intelectual nos relatórios anuais e nas páginas Web dos grupos bancários em Portugal. Os resultados revelaram que os grupos bancários divulgam em média 0,5335 de informação do capital intelectual nos relatórios anuais e 0,3493 nas suas páginas Web. O componente mais divulgado, tanto nos relatórios anuais como nas páginas Web, é o capital relacional, seguido do capital estrutural e do capital humano. Os grupos bancários em Portugal atribuem maior importância à divulgação de informação do capital negócio nos relatórios anuais e do capital sociedade nas páginas Web.

A problemática dos ativos intangíveis

A problemática dos ativos intangíveis

A divulgação do capital intelectual no setor bancário em Portugal.

divulgação do capital intelectual no setor bancário em Portugal.

O nível de divulgação de informação sobre o capital humano nas empresas cotadas em Portugal

Esta comunicação tem como objetivo principal analisar o nível de divulgação de informação voluntária sobre o capital humano nu amostra de 46 empresas cotadas na Euronext Lisbon. Recorrendo à técnica de análise de conteúdo estudamos os relatórios anuais de contas consolidadas de 2008 a 2012. Para determinar o nível de divulgação de informação sobre o capital humano desenvolvemos um índice de divulgação (IDVCH), que varia entre 0 e 1, sendo composto por 45 indicadores, baseado no estudo de Silva et al. (2012).Os dados recolhidos para a construção do índice foram codificados de forma binária: 0 para “não divulga” e 1 para “divulga”. Os resultados obtidos apontam para um nível médio de divulgação de 0,46, sendo possível afirmar que as empresas cotadas em Portugal têm ganho consciência e se preocupam em divulgar voluntariamente informação sobre o capital humano, fator de sucesso muitas vezes esquecido pelas organizações e pela Contabilidade.

Effect of neutralization and cross-linking on the thermal degradation of chitosan electrospun membranes

Thermal degradation of as electrospun chitosan membranes and samples subsequently treated with ethanol and cross-linked with glutaraldehyde (GA) have been studied by thermogravimetry (TG) coupled with an infrared spectrometer (FTIR). The influence of the electrospinning process and cross-linking in the electrospun chitosan thermal stability was evaluated. Up to three degradation steps were observed in the TG data, corresponding to water dehydration reaction at temperatures below 100 ºC, loss of side groups formed between the amine groups of chitosan and trifluoroacetic acid between 150 – 270 ºC and chitosan thermal degradation that starts around 250 ºC and goes up to 400 ºC. The Kissinger model was employed to evaluate the activation energies of the electrospun membranes during isothermal experiments and revealed that thermal degradation activation energy increases for the samples processed by electrospinning and subsequent neutralization and cross-linking treatments with respect to the neat chitosan powder.