Flow and Flourishing During the Pandemic: The Roles of Strengths Use and Playful Design

Ruminative thoughts induced by the COVID-19 pandemic have an adverse impact on individual well-being. However, little is known about how to alleviate such a negative effect – let alone how a person can flourish during crises. The current study uses the self-determination model of flow to propose that two proactive behaviors, strength use and...

Simultaneous optimization of topology and layout of modular stiffeners on shells and plates

Stiffened shells and plates are widely used in engineering. Their performance is highly influenced by the arrangement, or layout, of stiffeners on the base shell or plate and the geometric features, or topology, of these stiffeners. Moreover, modular design is beneficial, since it allows for increased quality control and mass production. In...

Strong Reduction of the Chain Rigidity of Hyaluronan by Selective Binding of Ca²⁺ Ions

The biological functions of natural polyelectrolytes are strongly influenced by the presence of ions, which bind to the polymer chains and thereby modify their properties. Although the biological impact of such modifications is well recognized, a detailed molecular picture of the binding process and of the mechanisms that drive the subsequent...

Combination of Advanced Optical Modelling with Electrical Simulation for Performance Evaluation of Practical 4-terminal Perovskite/c-Si Tandem Modules

The perovskite solar cell is considered a promising candidate as the top cell for high-efficiency tandem devices with crystalline silicon (c-Si) bottom cells, contributing to the cost reduction of photovoltaic energy. In this contribution, a simulation method, involving optical and electrical modelling, is established to calculate the...