Spectrum map is the foundation of spectrum resource management, security governance and spectrum warfare. Aiming at the problem that the traditional spectrum mapping is limited to two-dimensional space, a three-dimensional spectrum data acquisition and mapping system architecture for the integration of space, sky and earth is presented, and a spectrum map reconstruction scheme driven by propagation model is proposed, which can achieve high-precision three-dimensional spectrum map rendering under the condition of sparse sampling. The spectrum map reconstructed by this method in the case of single radiation source and multiple radiation sources is in good agreement with the theoretical results based on ray tracing method. In addition, the measured results of typical scenes further verify the feasibility of this method.
The temporomandibular joint (TMJ) is considered a bicondylar diarthrosis type joint. Imaging evaluation is a fundamental part of its assessment, which should include both bony and soft tissue characteristics and the relationship between them. Magnetic resonance imaging (MRI) represents the gold standard for the study of soft tissues; however, up to now, its main application continues to be the visualization of the articular disc. For this reason, the present article aimed to point out the information available in the literature regarding the visualization of the joint capsule in MRI and to evaluate it as an independent structure.
Virginia Woolf (1882-1941) enjoys worldwide reputation among modern writers for her art of the steam-of-consciousness in the 20th century. Mrs. Dalloway is the representative novel in which Woolf well practices her writing skills and finds her true voice, drawing many researchers’ attention. This paper stands the point -- modernism, which responds to literature and society, alternation of space and time arranged by Woolf under the influence of Einstein’s modern science theories, and the disillusionment of Septimus Warren Smith discarded by his so-called modern society after World WarⅠ.
The relationship between aid and corruption remains ambiguous. On the one hand, aid may benefit a country if the aid management system runs efficiently and transparently. On the other hand, aid tends to create new problems, namely corruption, especially in developing countries. This research examines the aid-corruption paradox in Indonesian provinces from a spatial perspective. The data was obtained from the Indonesian Ministry of Finance, the National Development Planning Agency of Indonesia, the Corruption Eradication Commission of Indonesia, and the Electronic Procurement Service, referring to 34 Indonesian provinces between 2011 and 2019. The research applies the spatial panel method and uses Haversine distance to construct the weighted matrix. The spatial error model (SEM) is the best for Model 1 (Grants) and Model 2 (Loans) and the best corruption model in Model 3 (Gratification). The spatial autoregressive model (SAR) is the best approach for Model 4 (Public Complaints) and Model 5 (Corruption). The findings show that there is no spatial dependence between provinces in Indonesia in terms of grants or loans. However, corruption in Indonesia is widespread.
Air cargo transportation accounts for less than 1% of the global trade volume, yet it represents approximately 35% of the total value of goods transported, highlighting its strategic importance in trade and economic development. This study investigates the relationship between domestic air cargo transport in Brazil and key macroeconomic variables, focusing on how regional economic dynamism, logistical infrastructure, and population density impact the country’s development. Using a panel data regression model covering the period from 2000 to 2020, the study analyzes the evolution of air cargo transportation and its role in redistributing economic growth across Brazil’s regions. The findings emphasize the key factors influencing the air cargo sector and demonstrate how these factors can be leveraged to optimize public policies and business strategies. This research provides valuable insights into the relevance of air cargo transportation for regional and national development, particularly in emerging economies like Brazil, offering guidance for the formulation of strategies that promote balanced economic growth across regions.
The starting point is the presence of a widespread feeling of political confrontation and division among Spanish citizens. This is compounded by dissatisfaction with and distrust in a system that is perceived by many as elitist and out of touch with real needs. Several factors related to this perception of politics are explained and quantified. On the one hand, there are economic elements, such as the stagnation of GDP per capita, the persistence of a relatively high at-risk-of-poverty rate, and the rates of material deprivation. And in all these elements, a significant territorial inequality can be observed. There are significant differences between Spain, France and Germany over the period considered. On the other hand, political factors determine much of the public debate in Spain: Historical memory and the Spanish Civil War, as well as the terrorism of ETA and other terrorist groups. The emergence of new parties is analyzed, especially VOX. Finally, the enormous difficulty of finding a territorial structure of political power that would bring together the consensus of most political forces. It is necessary to find formulas for fiscal federalism that will make it possible to move away from the current decentralization of spending without the Autonomous Communities having their own tax capacity. This study concludes by pointing out the relevance of all these problems and the need to find solutions through democratic debate and deliberation with agreements.
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