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A Mixed-Bouncing Based Non-Stationarity and Consistency 6G V2V Channel Model with Continuously Arbitrary Trajectory
In this paper, a novel three-dimensional (3D) irregularshaped geometry-based stochastic model (IS-GBSM) is proposedfor sixth-generation (6G) millimeter wave (mmWave) massivemultiple-input multiple-output (MIMO) vehicle-to-vehicle(V2V) channels. To investigate the impact of vehicular trafficdensity (VTD) on channel statistics, clusters are divided into staticclusters and dynamic clusters, which are
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The role of the corporate purpose and how investor relations officers make sense of it
This article addresses the role of the corporate purpose in strategic financial communication from the perspective of investor relations officers (IROs) with particular reference to their sensemaking process. Strategic financial communication increasingly includes intangible assets that contribute to the value of the company. At the same time, more and more companies are publishing corporate purpo
Comparison of delay and angular spreads between channel measurements and the COST2100 channel model
The COST2100 channel model is a reference channel model which provides dynamic multiple-input multiple-output channel responses for radio system simulations. In this paper, channels created by the COST2100 model were compared to channel measurements in order to understand behaviours of the model. Model parameters of the COST2100 model were derived by dynamic double-directional channel measurements
The effects of sustainability orientation on research and teaching efficiency in German universities
Academic research increasingly focuses on environmental sustainability as a specific societal mission to be addressed. However, the effects of the increasing sustainability orientation on output generation in public research organizations are largely unexplored. In this paper, we analyse the effects of the increasing importance of sustainability-oriented research topics on research and teaching ef
Stadshuset : Politisk ordning i fysisk form
Believing That We Can Change Our World for the Better : A Triple-A (Agent-Action-Aim) Framework of Self-Efficacy Beliefs in the Context of Collective Social and Ecological Aims
Many people do not act together against climate change or social inequalities because they feel they or their group cannot make a difference. Understanding how people come to feel that they can achieve something (a perception of self-efficacy) is therefore crucial for motivating people to act together for a better world. However, it is difficult to summarize already existing self-efficacy researc
Housing refugees from Ukraine: preliminary insights and learnings from the local response in five European cities
The Russian war of aggression against Ukraine caused an escape of >7 million people to other European countries. In this extreme context, the accommodation of refugees has been an urgent need and an unexpected challenge for the host cities and societies. This short paper discusses insights and learnings on housing and accommodation of Ukraine war refugees at the local scale. It summarises challeng
A primal-dual finite element method for scalar and vectorial total variation minimization
Based on the Fenchel duality we build a primal-dual framework for minimizing a general functional consisting of a combined L1 and L2 data-fidelity term and a scalar or vectorial total variation regularisation term. The minimization is performed over the space of functions of bounded variations and appropriate discrete subspaces. We analyze the existence and uniqueness of solutions of the respectiv
Injectable colloidal gold for use in intrafractional 2D image-guided radiation therapy
In the western world, approximately 50% of all cancer patients receive radiotherapy alone or in combination with surgery or chemotherapy. Image-guided radiotherapy (IGRT) has in recent years been introduced to enhance precision of the delivery of radiation dose to tumor tissue. Fiducial markers are often inserted inside the tumor to improve IGRT precision and to enable monitoring of the tumor posi
Kungsmarken — en lägesrapport
Normal science and the hidden lemmas of mathematical epidemiology
Normal science is a characterization of science in our epoch and a demarcation of what “scientific” means. It divides science in disciplined/normed paradigms. Mathematical epidemiology is the paradigm that regulates the activity of mathematicians with respect to the study of epidemics. It also represents the interest (multiple meanings implied) of the community that guards it. In contrast, a real
Channel hardening in massive mimo : Model parameters and experimental assessment
Reliability is becoming increasingly important for many applications envisioned for future wireless systems. A technology that could improve reliability in these systems is massive MIMO (Multiple- Input Multiple-Output). One reason for this is a phenomenon called channel hardening, which means that as the number of antennas in the system increases, the variations of channel gain decrease in both t
Organizing for transformation: post-growth in International Political Economy
The global political economy is organized around the pursuit of economic growth. Yet scholars of International Political Economy (IPE) have been surprisingly slow to address its wide-ranging implications and, thus, to advance debates about post-growth alternatives. The premise of the article is that for IPE to deepen its grasp of the escalation of contemporary socioecological crises both analytica
Ah, Alright, Okay! Communicating Understanding in Conversational Product Search
When talking about products, people often express their needs in vague terms with vocabulary that does not necessarily overlap with product descriptions written by retailers. This poses a problem for chatbots in online shops, as the vagueness and vocabulary mismatch can lead to misunderstandings. In human-human communication, people intuitively build a common understanding throughout a conversatio
AIRR community curation and standardised representation for immunoglobulin and T cell receptor germline sets
Analysis of an individual's immunoglobulin or T cell receptor gene repertoire can provide important insights into immune function. High-quality analysis of adaptive immune receptor repertoire sequencing data depends upon accurate and relatively complete germline sets, but current sets are known to be incomplete. Established processes for the review and systematic naming of receptor germline genes
Towards more sustainable dietary choices: Strategies for change in the context of Lucerne, Switzerland
Switzerland's current food system is unsustainable and responsible for 25% of the country's environmental footprint. Half of the greenhouse gas emissions from the Swiss food system are caused by meat and dairy consumption. Reducing Switzerland's GHG emissions from the food system requires an orchestrated approach, targeting amended consumption and production patterns. A primary change
Upscaling cargo bike sharing - A case study of “LastenVelo e.V.” in Freiburg and “Grätzlrad” in Vienna
There is a need to transform the urban mobility regime to mitigate climate change and improve living quality in cities. Cargo bikes (CBs) offer a promising solution to replace motorized vehicles, especially for last-mile deliveries and private logistics. They show considerably lower carbon intensity, occupy less space and help reduce air and noise pollution in cities. CB sharing relieves individua
Queer Movements for Whom? A Critical Reflection on the Western European Support for Queer Movements in Georgia
This thesis engages with Western European funding for queer movements in Georgia by asking how these donors affect the local movements, transnational politics and the power dynamics in Georgia. It pursues these inquiries by analysing the Western European understanding of queer activism and how donors support queer movements in Georgia; and the Georgian activists perceptions and suggestions for imp