Land cover mapping analysis and urban growth modeling using remote sensing techniques

The rapid growth of big cities has been noticed since 1950s when the majority of world population turned to live in urban areas rather than villages, seeking better job opportunities and higher quality of services and lifestyle circumstances. This demographic transition from rural to urban is expected to have a continuous increase. Governments, especially in less developed countries, are going to face more challenges in different sectors, raising the essence of understanding the spatial pattern of the growth for an effective urban planning. The study aimed to detect, analyse and model the urban growth in Greater Cairo Region (GCR) as one of the fast growing mega cities in the world using remote sensing data. Knowing the current and estimated urbanization situation in GCR will help decision makers in Egypt to adjust their plans and develop new ones. These plans should focus on resources reallocation to overcome the problems arising in the future and to achieve a sustainable development of urban areas, especially after the high percentage of illegal settlements which took place in the last decades. The study focused on a period of 30 years; from 1984 to 2014, and the major transitions to urban were modelled to predict the future scenarios in 2025. Three satellite images of different time stamps (1984, 2003 and 2014) were classified using Support Vector Machines (SVM) classifier, then the land cover changes were detected by applying a high level mapping technique. Later the results were analyzed for higher accurate estimations of the urban growth in the future in 2025 using Land Change Modeler (LCM) embedded in IDRISI software. Moreover, the spatial and temporal urban growth patterns were analyzed using statistical metrics developed in FRAGSTATS software. The study resulted in an overall classification accuracy of 96%, 97.3% and 96.3% for 1984, 2003 and 2014’s map, respectively. Between 1984 and 2003, 19 179 hectares of vegetation and 21 417 hectares of desert changed to urban, while from 2003 to 2014, the transitions to urban from both land cover classes were found to be 16 486 and 31 045 hectares, respectively. The model results indicated that 14% of the vegetation and 4% of the desert in 2014 will turn into urban in 2025, representing 16 512 and 24 687 hectares, respectively.

Analysis of temporal and spatial variations of forest. A case of study in notheastern Armenia

The forest has a crucial ecological role and the continuous forest loss can cause colossal effects on the environment. As Armenia is one of the low forest covered countries in the world, this problem is more critical. Continuous forest disturbances mainly caused by illegal logging started from the early 1990s had a huge damage on the forest ecosystem by decreasing the forest productivity and making more areas vulnerable to erosion. Another aspect of the Armenian forest is the lack of continuous monitoring and absence of accurate estimation of the level of cuts in some years. In order to have insight about the forest and the disturbances in the long period of time we used Landsat TM/ETM + images. Google Earth Engine JavaScript API was used, which is an online tool enabling the access and analysis of a great amount of satellite imagery. To overcome the data availability problem caused by the gap in the Landsat series in 1988- 1998, extensive cloud cover in the study area and the missing scan lines, we used pixel based compositing for the temporal window of leaf on vegetation (June-late September). Subsequently, pixel based linear regression analyses were performed. Vegetation indices derived from the 10 biannual composites for the years 1984-2014 were used for trend analysis. In order to derive the disturbances only in forests, forest cover layer was aggregated and the original composites were masked. It has been found, that around 23% of forests were disturbed during the study period.

O dever de obediência a ordens ilegais na Guarda Nacional Republicana

The Republican National Guard (GNR) is a military structure and hierarchical force where discipline and obedience is a serious matter, but at the same time, the scope of its activity relates to the protection of the rights, freedoms and guarantees of citizens and the primacy of public interest. While security force, GNR ensures democratic law, guarantee the internal security and the rights of citizens. The controversial issue that lies at the heart of this work its related with the balance between the hierarchy and the written law. The hierarchy, also established by law, with given powers, exist to apply the law. However, the rule of law has exceptions. Which institute to prioritize, hierarchy or the law. And within the law, its rules or the exceptions. Who decides? The GNR's officers have to obey the laws and regulations and comply with the accuracy and timeliness determinations, orders and instructions issued by a superior, given in terms of service, as long as does not involve the practice of crime. The GNR´s officer with command tasks exercises power of authority inherent in these functions, and the corresponding disciplinary authority, being responsible for acts by himself or by his order are practiced. Identify situations of exception to law enforcement, the situations in which one must obey illegal orders, is difficult and thankless, it requires conferred authority and raises the weight of responsibility for decisions and orders issued.

Do jogo de fortuna ou azar

Currently, gambling doesn’t have a strong social disapproval. However, the phenomenon of gambling raises several issues related to property protection, compulsive gambling, the youngest personality development, the State taxes and social development measures, which some authors believe to be the protected legal interest in the criminalization of illegal gambling exploitation. However, the authorization system, and because several of those interests, constitutionally protected, are also violated in the authorized gambling places, it appears that the legislator intended to define the legal interest as the order and public tranquility. The purpose of this study is to understand what is protected with the illegal gambling exploitation. This will involve defining the concept of exploitation and the concept of gambling. Still, we will try to know if there are situations without ethical and social resonance and what their consequences.

O sigilo bancário e a fraude fiscal

Tax evasion and fraud threaten the economic and social objectives of modern tax systems, precluding the state funding for the satisfaction of collective needs and the fair distribution of wealth, being a violation of basic principles and values of our society. In tax law, to give tax administration the necessary powers to supervise and control the information provided by taxpayers and combat tax evasion and fraud, over the last years the grounds for a derogation of bank secrecy without judicial authorization have been extended, which raises some constitutional compatibility issues. Similarly, this tendency of making this legal regime more flexible and increasing automatic exchange of information has been followed by the European Union and the international community. Banking secrecy, as a professional secrecy, is an instrument to protect the right to privacy but also appears as an anti-abuse and repressive mechanism of evasive and fraudulent behaviors. Because of the conflict of interests will always be necessary to make a practical agreement between them, ensuring the legality and the due guarantees of the taxpayers but also an effective way to combat tax evasion and fraud. Bank secrecy cannot be one method to, behind the right to privacy, taxpayers practice illegal activities. But the practice of these irregular conducts also does not justify a total annihilation of the right to banking secrecy, uncovering all documents and bank information’s. Although considering the legislative changes, the administrative derogation of bank secrecy will always be what the tax administration does of it.

Segurança e criminalidade organizada

Globalization brought some deep changes to the world (dis)order. Nowadays, more than in other moment in history, we are closer to the ones physically far, living in “global village” called by Marshall McLuhan (1962). The concepts and premises built in this new order, have totally broken with the ones that “came out from Westphalia”, which had last to the end of the cold war, like, for example, the concept of security. Since then, security has been facing one of its biggest transformations ever, completely disrupting the state border based idea and starting to be extended to other domains, as human, economic, environmental and IT security, among others. In this global and interdependent environment, “new” threats and risks have raised, which are demanding a comprehensive approach from the States, international organizations and other actors, to allow the analysis and understanding its impacts on the various society sectors and orders. Inside the enormous challenges to the global security, it is important to regard the organized crime, which covers, by itself, a set of threats and risks, enhanced by its connection to other types of criminality, such as terrorism. The goals pursued and the tactics used by criminal organizations during the perpetration of illegal activities, specially the drug smuggling, have impact in an wide spectrum of the social, economic financial and politic dimensions, which should not be underestimated, otherwise our own security may be compromised. Therefore, the current investigation intends to be an important catalyst to the idea debate inside security scope, through the analysis of the organized crime and the drug smuggling, adding to a discussion of this issue, which should be deeper and holistic, aiming a better understanding of the challenges provided by our society.

O serviço fiscal aduaneiro criminal e contraordenacional da GNR

At a time of global economic instability, to which Portugal is not oblivious, and aware that the main source of Portuguese State revenue relies on the collection of tribute, the National Republican Guard holds within its mission relevant assignments to the protection of the financial interests of the country, in particular, fiscal and customs. These assignments were inherited from the century - old institution Guarda Fiscal - with evidence given in this domain, which was integrated into the National Republican Guard in 1993, to adopt, a 1St model, that held a specialized unit – Brigada Fiscal, with surveillance and patrolling missions of costa and fiscal and customs supervision, throughout the national territory and maritime zone of respect. In 2009, the result of political decisions, reorganization the State's central administration, appears de 2Nd model, because the Brigada Fiscal assignments were divided by two specialized units - UAF with investigation skills, and UCC for patrolling and surveillance of the coast. Analyzed the legal spectrum of special legislation leading the criminal and transgression sector punitive (RGIT), in essence, is in the UAF that resides the role assignments from the scope of the investigation and supervision of goods in the national territory on a par with the tax authority. Tax inspection assignments, fiscal and customs of the National Republican Guard, are unmatched in the National Tribute System, constituting itself as a potentiality of this special body, in similarity of their counterparts - Spain and Italy; however, have some constraints, that urge to clarify and repair. Foreseeing the future, face the announced news of a new restructuring, on behalf of the interests of the country, and in order to raise the quality of performance of the tax inspection, fiscal and customs, the National Republican Guard shall maintain a model based on the experience already accumulated, obviously adapted to the new demands of a changing society. Despite the current model gain in efficiency, loses in effectiveness. However, the efficiency of a model, without the necessary resources, can never bring “the letter to Garcia” against any kind of infringements, criminal or transgressions. Unless better opinion, both tax structures of the National Republican Guard are valid as an instrument for the prevention and combat of these illegal types. Because they are strategic in pursuing the public interest, given the scarce resources of the country and be the National Republican Guard, the force with the means and know-how of this nature. The political power has the final word.

Internationalization venture analysis of NMusic to the Spanish market

Field lab: Entrepreneurial and innovative ventures

Estudo sócio-ecológico sobre tráfico de seres humanos para fins de exploração laboral na região do Alentejo : análise espacial e estatística

O presente relatório, inserido no Mestrado em Gestão do Território, Área de Especialização em Deteção Remota e Sistemas de Informação Geográfica, lecionado pelo Departamento de Geografia e Planeamento Regional da Faculdade de Ciências Sociais e Humanas da Universidade Nova de Lisboa, pretende descrever o trabalho desenvolvido pelo mestrando enquanto estagiário no Observatório do Tráfico de Seres Humanos (OTSH). O relatório está estruturado em três capítulos distintos. No primeiro capítulo é realizada uma abordagem teórica sobre o Tráfico de Seres Humanos e a distinção entre o mesmo com o Auxílio à Imigração Ilegal. Neste, é também feita uma pequena referência à problemática dos novos fluxos de refugiados/migrantes que, no momento da realização do mesmo, constituem uma questão bastante complexa sobretudo ao nível europeu. No segundo capítulo é realizada uma caracterização da área de estudo, assim como a descrição dos dados utilizados e a metodologia aplicada no mesmo. No terceiro capítulo são apresentados os resultados finais do estudo e a cartografia de síntese que sustenta os mesmos. Para a realização deste estudo recorreu-se a uma análise multicritério em SIG para prever a localização de áreas de maior suscetibilidade de ocorrência de novos casos relativos ao crime do tráfico de seres humanos para exploração laboral na agricultura, na região do Alentejo (distritos de Beja, Évora e Portalegre), através do recurso a dados estatísticos disponibilizados tanto pelo OTSH, como por outras entidades. A metodologia apresentada integra um SIG baseado num modelo raster com o Analytical Hierarchy Process (AHP). Através da realização deste estudo, a importância dos SIG como ferramenta no auxílio ao processo de tomada de decisão, pôde ser testada, conjuntamente com o processo metodológico AHP, através dos resultados apresentados. Com um possível desenvolvimento deste modelo analítico, pretende-se que o mesmo seja adaptável a outras regiões e em última instância, outros tipos de exploração e/ou tráfico.