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Relativistic, model-independent determination of electromagnetic finite-size effects beyond the pointlike approximation : Relativistic, model-independent determination of electromagnetic finite-size effects beyond the pointlike approximation

We present a relativistic and model-independent method to derive structure-dependent electromagnetic finite-size effects. This is a systematic procedure, particularly well-suited for automation, which works at arbitrarily high orders in the large-volume expansion. Structure-dependent coefficients appear as zero-momentum derivatives of physical form factors which can be obtained through experimenta

Designing high efficient solar powered lighting systems

Some major challenges in the development of L2L products is the lack of efficient converter electronics, modelling tools for dimensioning and furthermore, characterization facilities to support the successful development of the products. We report the development of 2 Three-Port-Converters respectively for 1-10Wp and 10-50 Wp with a peak efficiency of 97% at 1.8 W of PV power for the 10 Wp version

Performance and wear mechanisms of different PcBN tools when machining superalloy AD730

Nickel-based superalloys are known to be difficult to machine. These alloys are generally machined with cemented carbide tools under low productivity process conditions. Superhard polycrystalline cubic boron nitride (PcBN) tooling offers the possibility of increased production rates, however, a thorough understanding of the material performance and degradation is required before a transition from

Systems with Massive Number of Antennas: Distributed Approaches

As 5G is entering maturity, the research interest has shifted towards 6G, and specially the new use cases that the future telecommunication infrastructure needs to support. These new use cases encompass much higher requirements, specifically: higher communication data-rates, larger number of users, higher accuracy in localization, possibility to wirelessly charge devices, among others.The radio ac

Poor intake of vitamins and minerals is associated with symptoms among patients with irritable bowel syndrome

Background and Aim: Poor food habits with insufficient intake of micronutrients have been described in irritable bowel syndrome (IBS), which could be of importance for development of gastrointestinal and extraintestinal symptoms. The study aims were to examine intake and plasma/serum levels of micronutrients in IBS and whether these factors were associated with symptoms and restrictions and to stu

Risk Factors for Complicated Mohs Surgery in the South Sweden Mohs Cohort

Background: Mohs micrographic surgery (MMS) is a precise, tissue-sparing surgical technique that offers superior cure rates compared to traditional surgical excision. However, the degree of difficulty of MMS depends on many variables, and consequently, the number of surgical stages required for each case is quite unpredictable.Objectives: To identify risk factors for complicated MMS, defined as MM

Simultaneous measurements of velocity and concentration of gas flow using femtosecond laser-induced chemiluminescence

The mixing process in a gas flow plays a crucial role in chemical reactions, and simultaneous measurements of both velocity and mixture fraction are desired to fathom the process. Here, we report a scheme for simultaneously measuring both velocity and concentration by femtosecond laser-induced chemiluminescence. The femtosecond laser would induce chemical reactions that generate CN radicals in the

Did it pay to be a pioneer? Wealth accumulation in a newly settled frontier society

European settler colonies are often thought to have been characterized by a continued expansion of the landed frontier, which impacted the distribution of wealth across their settler populations. Hampered by a lack of data, few studies have been able to study this in-depth. How does settlement timing affect wealth and wealth accumulation when frontier expansion is not a smooth continuous process?

The Art of Resistance in Islam : The Performance of Politics among Shi'i Women in the Middle East and Beyond

Based on first-hand ethnographic insights into Shi‘i religious groups in the Middle East and Europe, this book examines women’s resistance to state as well as communal and gender power structures. It offers a new transnational approach to understanding gender agency within contemporary Islamic movements expressed through language, ritual practices, dramatic performances, posters, and banners. By l

Gendered mortality of children and adolescents in nineteenth-century Denmark : Exploring patterns of sex ratios and mortality rates

The relationship between gender and mortality in nineteenth-century Europe has been highly debated. In particular, historians disagree about the manner and degree to which gender discrimination affected the mortality risk of the female population. This article contributes by examining the evidence of gendered mortality differences among children and adolescents in nineteenth-century Denmark. It ma

The prothrombin gene G20210A mutation and the platelet glycoprotein IIIa polymorphism PlA2 in patients with central retinal vein occlusion

The prothrombin gene G20210A mutation and the platelet glycoprotein IIIa polymorphism PlA2 have been shown to be associated with thromboembolic disease. We wondered if mutations were overrepresented in patients with central retinal vein occlusion. We studied 129 consecutive patients with a history of central retinal vein occlusion. We analysed for the prothrombin gene G20210A mutation and the plat

Adaptation and Ecosystem Services in Urban Parks, examples from Berlin

Urban tourism depends on the place specific qualities of destinations. In many cities, climate change poses a threat to these qualities, through increasing risk of excessive heat, draught and flooding. Cities need to adapt to reduce these risks. One way of doing this is to improve their green infrastructure. Urban forests, parks, rivers and wetlands may help reduce the effects of climate change in