This paper presents major results and comparisons of radio spectrum utilization measurements that have been carried out in three different locations in Europe, namely in the suburb of the city of Brno in the Czech Republic and in the suburb and the city of Paris in France during years 2008 and 2009 respectively. The analyzed radio bandwidth extends from 400 MHz to 3 GHz. The measurement method is based on the energy detection principle. Utilization performance and behaviors of major wireless communication systems and primary wireless system within different regions and different environments are investigated here. Our analyses pick out correlations between spectrum utilization within different regions and summarize common observations and physical aspects that will have to be considered in the future radio spectrum management to assure efficient spectrum utilization.

The aim of this paper is to explore a new analytical framework in the discussion of knowledge production and innovation processes. The main thesis is that the formation of networks is not contained in spatial configurations of a nation, region or localization. Therefore there is a need to explore new analytical perspectives in the era of globalization in order to comprehend their implications in the local space. Through a case study of nanotechnology knowledge networks in Northern Mexico, the formation of transnational knowledge spaces is analyzed by means of networks that connect plurilocal points and the circulation of knowledge. The analytical perspective proposed is a framework that discusses the knowledge production and innovation as an open space, which is socially produced, and in constant interaction between different actors and spatial scales. This paper aims to address the local space as an area of intersection, where multiple connections converge from different spatial scales: translocal, transregional, transnational

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The objective of this article is to conceptualize affective polarization beyond partisan politics to instead analyze the ways in which women’s affective political participation is subject to toxic discipline. While a lot of focus has been placed on affective politics as mechanisms for governance, little has been done regarding affective polarization after feminist protest. In this article, we bridge two bodies of literature—affective politics and political polarization—by proposing the notion of affective polarization. We focused on the case of a series of feminist mobilizations that took place to fight back against the impunity of police violence in Mexico. We conducted a mixed-method approach that combines, on one hand, quantitative analysis of data strand tweets encompassing #EllasNoMeRepresentan (TheyDoNotRepresentMe) ( N = 17,698) and #EllasSiMeRepresentan (TheyDoRepresentMe) ( N = 6700) and, on the other hand, a qualitative analysis of 500 tweets of each hashtag. The results of the study revealed the existence of polarization that aims at disciplining the affective political participation of women. Almost half of our data contain negative sentiments. The toxic tweets include corrective threats, such as incitation to sexual violence, murder, hate against feminism, and patronizing discourses about how women should protest. We thus conclude that while it is true that social media has amplified feminist mobilization, it has also led to an increase of digital violence. With these findings, the article contributes to a better understanding of both feminist affective politics and its disciplining governing mechanisms in a patriarchal social media.

RESUMENEste artículo analiza el papel de los drones en la emergencia de nuevas formas de participación política e impugnación del poder por parte de colectivos sociales. El artículo plantea una lectura feminista de los drones como ciborgs (humanos-máquinas) para explorar las agencias distribuidas entre actores humanos y no humanos con el propósito de visibilizar las relaciones de poder y analizar la configuración de contra-realidades. Se presentan ocho Colectivos sociales y ciborgs: hacia una lectura feminista de los drones casos de colectivos sociales que, con la ayuda de un dron, disputan el poder de gobiernos, empresas transnacionales además de desempeñar innovadoras intervenciones públicas. PALABRAS CLAVEmovimientos sociales; contra-cultura; vehículos aéreos no tripulados. ABSTRACTThis article analyses the role of drones in the emergence of new forms of political participation and power contestation by social collectives. It deploys a feminist perspective that presents drones as cyborgs (human-machines) to explore human and non-human agencies, make visible the power relations that are mobilized, and to comprehend the configuration of counter-realities. Eight cases are presented of social collectives that with the help of drones perform public interventions and contest the power of governments and transnational companies.