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We propose that false beliefs about own current economic status are an important factor for explaining populist attitudes. Eliciting subjects’ receptiveness to rightwing populism and their perceived relative income positions in a representative survey of German households, we find that people with pessimistic beliefs about their income position are more attuned to populist statements. Key to understanding the misperception-populism relationship are strong gender differences in the mechanism: men are much more likely to channel their discontent into affection for populist ideas. A simple information provision does neither sustainably reduce misperception nor curb populism.
Utilizing multiple access technologies such as 5G, 4G, and Wi-Fi within a coherent framework is currently standardized by 3GPP within 5G ATSSS. Indeed, distributing packets over multiple networks can lead to increased robustness, resiliency and capacity. A key part of such a framework is the multi-access proxy, which transparently distributes packets over multiple paths. As the proxy needs to serve thousands of customers, scalability and performance are crucial for operator deployments. In this paper, we leverage recent advancements in data plane programming, implement a multi-access proxy based on the MP-DCCP tunneling approach in P4 and hardware accelerate it by deploying the pipeline on a smartNIC. This is challenging due to the complex scheduling and congestion control operations involved. We present our pipeline and data structures design for congestion control and packet scheduling state management. Initial measurements in our testbed show that packet latency is in the range of 25 μs demonstrating the feasibility of our approach.
The DFG project “SDN-enabled Application-aware Network Control Architectures and their Performance Assessment” (DFG SDN-App) focused in phase 1 (Jan 2017 – Dec 2019) on software defined networking (SDN). Being a fundamental paradigm shift, SDN enables a remote control of networking devices made by different vendors from a logically centralized controller. In principle, this enables a more dynamic and flexible management of network resources compared to the traditional legacy networks. Phase 1 focused on multimedia applications and their users’ Quality of Experience (QoE).
This documents reports the achievements of the first phase (Jan 2017 – Dec 2019), which is jointly carried out by the Technical University of Munich, Technical University of Berlin, and University of Würzburg. The project started at the institutions in Munich and Würzburg in January 2017 and lasted until December 2019.
In Phase 1, the project targeted the development of fundamental control mechanisms for network-aware application control and application-aware network control in Software Defined Networks (SDN) so to enhance the user perceived quality (QoE). The idea is to leverage the QoE from multiple applications as control input parameter for application-and network control mechanisms. These mechanisms are implemented by an Application Control Plane (ACP) and a Network Control Plane (NCP). In order to obtain a global view of the current system state, applications and network parameters are monitored and communicated to the respective control plane interface. Network and application information and their demands are exchanged between the control planes so to derive appropriate control actions. To this end, a methodology is developed to assess the application performance and in particular the QoE. This requires an appropriate QoE modeling of the applications considered in the project as well as metrics like QoE fairness to be utilized within QoE management.
In summary, the application-network interaction can improve the QoE for multi-application scenarios. This is ensured by utilizing information from the application layer, which are mapped by appropriate QoS-QoE models to QoE within a network control plane. On the other hand, network information is monitored and communicated to the application control plane. Network and application information and their demands are exchanged between the control planes so to derive appropriate control actions.
The necessary adjustments to prominent measures of the neutral rate of interest following the COVID pandemic sparked a wide-ranging debate on the measurement and usefulness of r-star. Due to high uncertainty about relevant determinants, trend patterns and the correct estimation method, we propose in this paper a simple alternative approach derived from a standard macro model. Starting from a loss function, neutral periods can be determined in which a neutral real interest rate is observable. Using these values, a medium-term trend for a neutral interest rate can be determined. An application to the USA shows that our simple calculation of a neutral interest rate delivers comparable results to existing studies. A Taylor rule based on our neutral interest rate also does a fairly good job of explaining US monetary policy over the past 60 years.
Expanding on a general equilibrium model of offshoring, we analyze the effects of a unilateral emissions tax increase on the environment, income, and inequality. Heterogeneous firms allocate labor across production tasks and emissions abatement, while only the most productive can benefit from lower labor and/or emissions costs abroad and offshore. We find a non-monotonic effect on global emissions, which decline if the initial difference in emissions taxes is small. For a sufficiently large difference, global emissions rise, implying emissions leakage of more than 100%. The underlying driver is a global technique effect: While the emissions intensity of incumbent non-offshoring firms declines, the cleanest firms start offshoring. Moreover, offshoring firms become dirtier, induced by a reduction in the foreign effective emissions tax in general equilibrium. Implementing a BCA prevents emissions leakage, reduces income inequality in the reforming country, but raises inequality across countries.
The Vacaciones en Paz programme (VeP) started in 1979 shortly after Morocco illegally occupied Western Sahara, which since 1975 has been a disputed territory pending a referendum for self-determination. The programme consists of Sahrawi children being hosted during summer by Spanish families who try to raise awareness for the Sahrawi cause and temporarily alleviate the children’s living conditions. Meanwhile, approximately 170,000 Sahrawi refugees live in camps near Tindouf (Algeria) heavily dependent on humanitarian aid for their survival.
This study aimed to determine the impact of the VeP programme on the promotion of children’s rights based on the perspective of Sahrawi children. Research has shown that it serves as a temporary platform to implement some of those rights. This qualitative study is based on a literature review of the principles of the VeP programme, alongside a thematic analysis of the field data provided by Sahrawi children and teenagers. Analysis of the VeP programme demonstrated that the Convention of the Rights of the Child is not mentioned in its discourse. Notwithstanding, the results indicate an impact on the promotion of Sahrawi children’s rights. On this basis, it is recommended to implement a children’s rights-based discourse within the principles of the VeP programme, since the theoretical knowledge of their rights may be a key factor for strategic empowerment of Sahrawi children and teenagers in their representation of the Sahrawi cause.
Um zu beweisen, daß Senecas Tragödien nicht aufführbar seien, hat Kugelmeier auf ihre zahlreichen Unstimmigkeiten und Widersprüche hingewiesen. Zum Beispiel begehe Phaedra Selbstmord über dem Leichnam des Hippolytus, als dieser noch gar nicht vorhanden ist. Für Kugelmeier werden diese Unstimmigkeiten allerdings, wenn der Text nur vorgelesen wird, infolge der „inneren Vergegenwärtigung“ nicht ernsthaft wahrgenommen. Die vorliegende Arbeit möchte genau das Gegenteil zeigen: Berücksichtigung dessen, was auf einer Bühne dargestellt werden kann und eindringliches Studium von Senecas Texten erweisen, daß die Tragödien aufführbar sind und nach Absicht Senecas auch für Aufführungen konzipiert wurden. In einer wohldurchdachten Aufführung verschwinden die von Kugelmeier behaupteten Schwierigkeiten.
Utilizing multiple access networks such as 5G, 4G, and Wi-Fi simultaneously can lead to increased robustness, resiliency, and capacity for mobile users. However, transparently implementing packet distribution over multiple paths within the core of the network faces multiple challenges including scalability to a large number of customers, low latency, and high-capacity packet processing requirements. In this paper, we offload congestion-aware multipath packet scheduling to a smartNIC. However, such hardware acceleration faces multiple challenges due to programming language and platform limitations. We implement different multipath schedulers in P4 with different complexity in order to cope with dynamically changing path capacities. Using testbed measurements, we show that our CMon scheduler, which monitors path congestion in the data plane and dynamically adjusts scheduling weights for the different paths based on path state information, can process more than 3.5 Mpps packets 25 μs latency.
WUEMoCA — научный инструмент веб-кар¬тографирования для мониторинга эф¬фек¬тивности земле- и водопользования на территориях орошаемого земледелия стран трансграничного бассейна Араль¬ского моря (Казахстана, Кыргызстана, Таджикистана, Туркменистана, Узбеки¬стана и Афганистана). Путём интеграции спутниковых данных по землепользованию, растениеводству и потреблению воды с гидрологическими и экономическими данными создаётся целый набор показателей. Инструмент полезен для выработки масштабных решений в вопросах распределения воды и землепользования, а также может применяться во многих практических сферах, в которых требуются независимые данные о конкретных обширных территориях.
WUEMoCA is an operational scientific webmapping tool for the regional monitoring of land and water use efficiency in the irrigated croplands of the transboundary Aral Sea Basin that is shared by Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan, and Afghanistan. Satellite data on land use, crop pro-duction and water consumption is integrated with hydrological and economic information to provide of a set indicators. The tool is useful for large-scale decisions on water distribution or land use, and may be seen as demonstrator for numerous applications in practice, that require independent area-wide spatial information.