Infectious diseases that can be transmitted via air often spread rapidly, sometimes causing large epidemic and pandemic outbreaks. As an increasing number of people live in crowded urban environments, and with frequent and long-distance traveling across the world, infectious diseases can spread even faster. Yet, our knowledge of how much airborne transmission (here defined as aerosol particles 4.5

How to manage a growing cultural and religious diversity with its origin in human mobility across the globe is a pressing theme in Europe. A process of shrinking tolerance of diversity in favour of the imposition of prohibitions of certain acts grounded in culture is now observed. Both female genital mutilation involving unjustified violence against children and women and other cultural practices

Spain’s political engagement with the UN is based upon resources, expertise and strategic interests. This paper discusses the stability and degree of commitment of Spain’s engagement, despite internal political changes and the challenges it has faced. Following the economic crisis, which led to a drop in its financial contributions, Spain’s commitment to the organisation is regaining force and int

Fysisk aktivitet är en hälsofrämjande livsstilsfaktor som minskar risken för flera kroniska sjukdomar såsom hjärt-kärlsjukdomar, diabetes typ 2, depression och vissa typer av cancer. En av cancerformerna där risken minskas är bröstcancer som är den vanligaste cancern hos kvinnor, i Sverige insjuknar ungefär 7 500 kvinnor per år. Bröstcancer kan delas in i olika subgrupper som till viss del styr beBackground: Physical activity and avoidance of sedentariness do enhance health in women with breast cancer, and could even reduce the risk of developing the disease. One aim of this thesis was to elucidate the association between sedentariness and breast cancer risk in women as a whole, and then separately for those younger than 55 years old and those 55 years or older. Two additional aims were re

Political ideologies of the far-right are gaining ground in world politics and culture, not least by way of market forces. It has therefore become urgent to understand how these ideologies manifest themselves in the fields of marketing and consumption at a sociocultural level. The authors explore the discursive efforts in far-right consumer resistance to advance a political agenda through protests

The Brussels-based civil society organizations (CSOs) have been conceived by the EU to act as a bridge between the bureaucratic elites and the citizens of Europe. The institutionalized presence of the major EU-based CSOs has, however, called their legitimacy into question, as exemplified by notions such as ‘revolving doors’ implying homogeneous social, educational, and professional backgrounds sha

This thesis is based on work done by the author on the development of plasma-based electron accelerators driven by ultra-intense laser pulses and dense electron bunches. Plasma based accelerators have several benefits, such as accelerating fields around 1000 times stronger than in “conventional” radio-frequency accelerators, which can allow for shrinking the overall footprint of the accelerator. T

PurposeAn inverse relationship between mental health and academic achievement is a well-known phenomenon in the scientific literature. However, how and when this association develops is not fully understood and there is a lack of longi-tudinal, population-based studies on young children. Early intervention is important if associations are to be found already during childhood. The aim of the presenPurposeAn inverse relationship between mental health and academic achievement is a well-known phenomenon in the scientific literature. However, how and when this association develops is not fully understood and there is a lack of longitudinal, population-based studies on young children. Early intervention is important if associations are to be found already during childhood. The aim of the present

In the future, fifth‐generation communications system (5G) is expected to provide reasonable mobile broadband experience to high‐density users in stadium, gym, shopping mall, etc. As the fundamental limitation is attributed to the propagation environments, it is essential to understand profoundly the high‐density channels, say, the propagation channel in the environments where the user density cou

This paper presents a measurement-based analysis of 39 GHz millimeter wave (mm-wave) radio propagation through vegetation using an ultra-wideband (UWB) channel sounder. The measurement campaign was conducted in a suburban area on campus of Tongji University, Shanghai, China. Two different kinds of measurements were performed to investigate the foliage influence on the characteristics of radio prop

This paper presents a measurement-based analysis of wideband 39 GHz millimeter wave (mm-wave) dual-polarized propagation channel under the impact of foliage presence between a transmitter (Tx) and a receiver (Rx). The measurements were conducted in a rich-vegetation area, and the so-called direction-scan-sounding (DSS) method which rotates a horn antenna in angular domains was applied, aiming at i

In this letter, a recently conducted measurement campaign in two suburban scenarios for investigating the low-height air-to-ground channels is presented. A universal-software-radio-peripheral-based channel sounder on-board an unmanned aerial vehicle (UAV) was exploited to record the real-time downlink signals of the live Long Term Evolution networks. Several horizontal flights at different heights

In this contribution, a recently conducted measurement campaign for indoor millimeter-wave (mm-wave) propagation channels is introduced. A vector network analyzer (VNA)-based channel sounder was exploited to record the channel characteristics at the frequency band from 28-30 GHz. A virtual uniform circular array (UCA) with a radius of 0.25 m was formed using a rotator with 360 steps. Moreover, by