942 resultados para Purchasing power parity
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O presente Trabalho de Investigação Aplicada intitulado “Forças Armadas de Cabo Verde. O impacto Económico e Financeiro da profissionalização das Forças Armadas”, surge no âmbito dos cursos ministrados na Academia Militar, e tem como objetivo principal estudar as Forças Armadas de Cabo Verde e identificar os impactos que a adoção de um modelo profissional pode ter no orçamento da Defesa. Este trabalho contém uma componente teórica que serve de sustentação à investigação, em que aborda aspetos importantes relativos à profissionalização das Forças Armadas, faz uma abordagem às Forças Armadas de Cabo Verde com base em legislação afeta às mesmas para se perceber quais os eventuais impactos que podem advir da adoção do modelo profissional, e as suas implicações no orçamento da Defesa Nacional. A segunda componente comporta uma pesquisa e recolha de dados e informação através de entrevistas que permitiram obter as conclusões e responder ao problema de estudo. Da análise teórica e dos dados recolhidos verifica-se que a adoção de um modelo profissional nas Forças Armadas de Cabo Verde implica uma alteração nos processos de recrutamento atualmente existente, estabelecendo requisitos para a entrada na Instituição Militar, tendo em conta as necessidades da mesma sendo que, a adoção deste modelo também tem implicações nos salários. Assim, concluímos que a adoção deste modelo implica uma alteração significativa no orçamento da Defesa, resultante do aumento dos gastos com o pessoal militar das Forças Armadas, e do maior investimento que deverá ser feito em tecnologias, na formação e treino dos quadros, pelo que o Estado deve encontrar formas para suportar tais custos. Também verifica-se que a adoção deste modelo permite uma redução da taxa de desemprego na sociedade, aumenta o poder de compra dos militares, contribuindo assim para a dinamização da economia, fornecendo ainda um clima de segurança favorecendo os investimentos, sendo por isso considerado uma mais-valia.
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There are a lot of different business strategies for any company. However, in the fashion industry, the best way to become successful is to develop the brand using special branding strategies. Hence, a brand is the main weapon for fashion companies, which helps to launch international market and to create loyal customers around the world. Nowadays, due to the difficult current political situations and the collapse of oil and the dollar a lot of companies in different industries have to change their business strategies. It is especially true for fashion companies, because they depend on consumers ' income and their purchasing power. In the case of the fashion industry, branding strategy development can be more effective, than just business strategy. Hence, this thesis discusses the following problem: What branding strategy should Russian and Swedish fashion companies choose in order to build a strong brand and enter the international market. The purpose of this thesis is to analyze various branding strategies of Russian and Swedish fashion companies during the process of entering foreign markets. At the end of this thesis, practical contribution in their process of international branding strategy creation will be discussed. In order to answer research questions more broadly and accurately, the mixed research method, using quantitive and qualitative study through interviews and survey was chosen. Semi-structured interviews were made with the CEO and brand managers of Russian and Swedish fashion companies. Moreover, the survey was made with two different questionnaires: for Russian and for Swedish customers. In the case of qualitative research, the author found that fashion companies from Russia and Sweden have got not just some features and differences, but also common aspects. The primary data from interviews allowed the author to understand the specifics of brand management in the fashion industry. It was found, that there are some useful aspects in Swedish strategies, which can be used by Russian companies to develop their brands on the international market. In the case of quantitative research, preferences of consumers from Russia and Sweden were analyzed and also some features were identified. Survey results provided the author with a common understanding about purchase habits, attitudes and perceptions to fashion brands. According to these, some hypothesizes, which are formulated in the first part of the thesis, have been proven or disproven. It was found, that preferences of Russian and Swedish people are pretty the same, however Russian customers do not like to risk with new brands and prefer well-known and trusted brands while Swedish customers are open for any brand, which can satisfy their tastes.
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The global power supply stability is faced to several severe and fundamental threats, in particular steadily increasing power demand, diminishing and degrading fossil and nuclear energy resources, very harmful greenhouse gas emissions, significant energy injustice and a structurally misbalanced ecological footprint. Photovoltaic (PV) power systems are analysed in various aspects focusing on economic and technical considerations of supplemental and substitutional power supply to the constraint conventional power system. To infer the most relevant system approach for PV power plants several solar resources available for PV systems are compared. By combining the different solar resources and respective economics, two major PV systems are identified to be very competitive in almost all regions in the world. The experience curve concept is used as a key technique for the development of scenario assumptions on economic projections for the decade of the 2010s. Main drivers for cost reductions in PV systems are learning and production growth rate, thus several relevant aspects are discussed such as research and development investments, technical PV market potential, different PV technologies and the energetic sustainability of PV. Three major market segments for PV systems are identified: off-grid PV solutions, decentralised small scale on-grid PV systems (several kWp) and large scale PV power plants (tens of MWp). Mainly by application of ‘grid-parity’ and ‘fuel-parity’ concepts per country, local market and conventional power plant basis, the global economic market potential for all major PV system segments is derived. PV power plant hybridization potential of all relevant power technologies and the global power plant structure are analyzed regarding technical, economical and geographical feasibility. Key success criteria for hybrid PV power plants are discussed and comprehensively analysed for all adequate power plant technologies, i.e. oil, gas and coal fired power plants, wind power, solar thermal power (STEG) and hydro power plants. For the 2010s, detailed global demand curves are derived for hybrid PV-Fossil power plants on a per power plant, per country and per fuel type basis. The fundamental technical and economic potentials for hybrid PV-STEG, hybrid PV-Wind and hybrid PV-Hydro power plants are considered. The global resource availability for PV and wind power plants is excellent, thus knowing the competitive or complementary characteristic of hybrid PV-Wind power plants on a local basis is identified as being of utmost relevance. The complementarity of hybrid PV-Wind power plants is confirmed. As a result of that almost no reduction of the global economic PV market potential need to be expected and more complex power system designs on basis of hybrid PV-Wind power plants are feasible. The final target of implementing renewable power technologies into the global power system is a nearly 100% renewable power supply. Besides balancing facilities, storage options are needed, in particular for seasonal power storage. Renewable power methane (RPM) offers respective options. A comprehensive global and local analysis is performed for analysing a hybrid PV-Wind-RPM combined cycle gas turbine power system. Such a power system design might be competitive and could offer solutions for nearly all current energy system constraints including the heating and transportation sector and even the chemical industry. Summing up, hybrid PV power plants become very attractive and PV power systems will very likely evolve together with wind power to the major and final source of energy for mankind.
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The Dirac equation is analyzed for nonconserving-parity pseudoscalar radial potentials in 3+1 dimensions. It is shown that despite the nonconservation of parity this general problem can be reduced to a Sturm-Liouville problem of nonrelativistic fermions in spherically symmetric effective potentials. The searching for bounded solutions is done for the power-law and Yukawa potentials. The use of the methodology of effective potentials allow us to conclude that the existence of bound-state solutions depends whether the potential leads to a definite effective potential-well structure or to an effective potential less singular than -1/4r(2).
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We present here an information reconciliation method and demonstrate for the first time that it can achieve efficiencies close to 0.98. This method is based on the belief propagation decoding of non-binary LDPC codes over finite (Galois) fields. In particular, for convenience and faster decoding we only consider power-of-two Galois fields.
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Japan’s two major electricity producing companies reached a preliminary agreement recently to establish a joint venture for the procurement of fossil fuel resources, primarily liquefied natural gas (LNG). The authors of this commentary ask whether this commercial initiative could serve as an example to Europe of how to increase the negotiating power of individual EU member states. They conclude that a private joint gas procurement company may indeed offer a solution for EU member states in Central and Eastern Europe, instead of yet another source of confrontation. Given the political volatility in the region, it could well be the key to balancing out the need for security of supply with an offer to guarantee security of demand, thereby creating the climate for stable commercial relations.
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Printed for the use of the Temporary National Economic Committee.
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While language use has been argued to reflect gender asymmetry, increasing parity has been evidenced in official settings (Holmes, 2000; Dister and Moreau, 2006). Our hypothesis is that the French national press has developed a norm of equal linguistic treatment of men and women. In a corpus of articles from Libération, Le Monde, and Le Figaro, we examine the treatment of Arlette Laguiller, the female leader of the French extreme-left 'Worker's Struggle' Party (Lutte Ouvrière), during the run-up to the 2007 presidential elections. How Laguiller is referred to and described in comparison with her male counterparts evidences no asymmetry. Breaches to parity are only found in the right-wing Figaro newspaper. The ideological distance between the newspaper and the candidate suggests that power struggles are a primary source of asymmetrical treatments. The discursive functions of such treatments can be understood through an investigation based on a portable corpus linguistics methodology for the measure of discrimination. © 2011 Elsevier B.V.
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The paper analyses the potential benefits of marketing cooperatives in Hungary, employing a transaction cost economics framework. We found that the purchased quantity, the existence of contracts, flexibility and trust are the most important factors farmers consider when selling their products via a cooperative. The most striking result is that diversification has positive influences on the share of cooperatives in farmers’ sale. Furthermore, farmers with larger bargaining power have less willingness to sell their product to the cooperative. Surprisingly, asset specificity has rather negative effects on the share of cooperatives in members’ sales.
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Orthogonal Frequency-Division Multiplexing (OFDM) has been proved to be a promising technology that enables the transmission of higher data rate. Multicarrier Code-Division Multiple Access (MC-CDMA) is a transmission technique which combines the advantages of both OFDM and Code-Division Multiplexing Access (CDMA), so as to allow high transmission rates over severe time-dispersive multi-path channels without the need of a complex receiver implementation. Also MC-CDMA exploits frequency diversity via the different subcarriers, and therefore allows the high code rates systems to achieve good Bit Error Rate (BER) performances. Furthermore, the spreading in the frequency domain makes the time synchronization requirement much lower than traditional direct sequence CDMA schemes. There are still some problems when we use MC-CDMA. One is the high Peak-to-Average Power Ratio (PAPR) of the transmit signal. High PAPR leads to nonlinear distortion of the amplifier and results in inter-carrier self-interference plus out-of-band radiation. On the other hand, suppressing the Multiple Access Interference (MAI) is another crucial problem in the MC-CDMA system. Imperfect cross-correlation characteristics of the spreading codes and the multipath fading destroy the orthogonality among the users, and then cause MAI, which produces serious BER degradation in the system. Moreover, in uplink system the received signals at a base station are always asynchronous. This also destroys the orthogonality among the users, and hence, generates MAI which degrades the system performance. Besides those two problems, the interference should always be considered seriously for any communication system. In this dissertation, we design a novel MC-CDMA system, which has low PAPR and mitigated MAI. The new Semi-blind channel estimation and multi-user data detection based on Parallel Interference Cancellation (PIC) have been applied in the system. The Low Density Parity Codes (LDPC) has also been introduced into the system to improve the performance. Different interference models are analyzed in multi-carrier communication systems and then the effective interference suppression for MC-CDMA systems is employed in this dissertation. The experimental results indicate that our system not only significantly reduces the PAPR and MAI but also effectively suppresses the outside interference with low complexity. Finally, we present a practical cognitive application of the proposed system over the software defined radio platform.
Resumo:
Orthogonal Frequency-Division Multiplexing (OFDM) has been proved to be a promising technology that enables the transmission of higher data rate. Multicarrier Code-Division Multiple Access (MC-CDMA) is a transmission technique which combines the advantages of both OFDM and Code-Division Multiplexing Access (CDMA), so as to allow high transmission rates over severe time-dispersive multi-path channels without the need of a complex receiver implementation. Also MC-CDMA exploits frequency diversity via the different subcarriers, and therefore allows the high code rates systems to achieve good Bit Error Rate (BER) performances. Furthermore, the spreading in the frequency domain makes the time synchronization requirement much lower than traditional direct sequence CDMA schemes. There are still some problems when we use MC-CDMA. One is the high Peak-to-Average Power Ratio (PAPR) of the transmit signal. High PAPR leads to nonlinear distortion of the amplifier and results in inter-carrier self-interference plus out-of-band radiation. On the other hand, suppressing the Multiple Access Interference (MAI) is another crucial problem in the MC-CDMA system. Imperfect cross-correlation characteristics of the spreading codes and the multipath fading destroy the orthogonality among the users, and then cause MAI, which produces serious BER degradation in the system. Moreover, in uplink system the received signals at a base station are always asynchronous. This also destroys the orthogonality among the users, and hence, generates MAI which degrades the system performance. Besides those two problems, the interference should always be considered seriously for any communication system. In this dissertation, we design a novel MC-CDMA system, which has low PAPR and mitigated MAI. The new Semi-blind channel estimation and multi-user data detection based on Parallel Interference Cancellation (PIC) have been applied in the system. The Low Density Parity Codes (LDPC) has also been introduced into the system to improve the performance. Different interference models are analyzed in multi-carrier communication systems and then the effective interference suppression for MC-CDMA systems is employed in this dissertation. The experimental results indicate that our system not only significantly reduces the PAPR and MAI but also effectively suppresses the outside interference with low complexity. Finally, we present a practical cognitive application of the proposed system over the software defined radio platform.