This study investigates patterns of innovation during two successive industrial revolutions in Sweden. “Genius engineering firms”, such as L M Ericsson, SKF and ASEA (ABB) have dominated narratives about Sweden’s industrial and innovation success. Using new long-term data series of innovation output, 1890-2016, we observe several patterns. First, we document inverted U-shaped patterns during the c

Fundamental bounds on the performance of monochromatic scattering-cancellation and field-zeroing cloaks made of prescribed linear passive materials occupying a predefined design region are formulated by projecting field quantities onto a sub-sectional basis and applying quadratically constrained quadratic programming. Formulations are numerically tested revealing key physical trends as well as adv

Investments in rail are usually expected to improve accessibility for individuals. The value of the additional accessibility is often measured by the impact on housing prices nearby. This paper analyses the City Tunnel in Southern Sweden, a major railway investment that resulted in two new train stations in 2010: the Triangeln and Hyllie train stations. A station may affect housing prices both dir

E-scooter sharing is a potential feeder to complement public transit for alleviating the first-and-last-mile problem. This study investigates the integration between shared e-scooters and public transit by conducting a comparative analysis in 124 European cities based on vehicle availability data. Results suggest that the integration ratios of e-scooter sharing in different cities show significant

The web services that millions of people count on require large-scale computer resources (servers, nodes, networking) and an intricate set of interdependent software services. Under pressure to continually improve these services, code and configuration changes are deployed hundreds or thousands of times every day. Unforeseen issues and vulnerabilities during the deployment process can lead to cost

The potential of unmanned systems is vast, but pre-procurement evaluation is challenging. This study explores potential uses of and interaction with unmanned ground vehicles (UGVs) for dismounted infantry. A remote user study with Swedish Armed Forces personnel is described. Many factors influencing future use and interaction were found. Moreover, this study shows the potential of the innovative m

Combining Live, Virtual, and Constructive (LVC) aircraft in the same training scenario holds promise for developing and enhancing fighter pilot training. The simulator study reported here builds on joint pilot-researcher co-design work of beyond visual range LVC training (LVC-T) scenarios to provide training value to pilots in both Live and Virtual aircraft. One fourship of pilots simulated Live e

Ultra-safe organizations, such as Air Navigation Service Providers (ANSPs), have extensive safety management organizations and generally excellent safety records with very few serious incidents and accidents. This development has been supported by increasingly advanced and effective methods. However, recent research has uncovered how the application of even advanced incident investigation methods

Physical limitations of antennas above infinite perfect electric conductor (PEC) ground planes are determined using the stored electromagnetic energy. Stored energies are computed with the method of moments (MoM) and the image theory. Convex optimization is used to derive the G/Q ratio and Q-factor for a reference geometry, and the results are compared for different antenna types.

The development of newer glucose-lowering drugs for the treatment of type 2 diabetes in recent years, such as the SGLT-2 inhibitors and GLP-1 receptor agonists/analogues with well-documented clinical benefits from large trials, has influenced international guidelines. These drugs are able to reduce both macro- and microvascular events in patients with type 2 diabetes and to prevent worsening of di

Considerable time is often spent optimizing antennas to meet specific design metrics. Rarely, however, are the resulting antenna designs compared to rigorous physical bounds on those metrics. Here, we study the performance of optimized planar meander line antennas with respect to such bounds. Results show that these simple structures meet the lower bound on the radiation quality factor (Q-factor)

The evolution of reading frame maintenance must have been an early event, and presumably preceded the emergence of the three domains Archaea, Bacteria and Eukarya. Features evolved early in reading frame maintenance may still exist in present-day organisms. We show that one such feature may be the modified nucleoside 1-methylguanosine (m(1)G37), which prevents frameshifting and is present adjacent

Accurate and rapid detection of nucleic acid sequences is of utmost importance in various fields, including disease monitoring, clinical treatment, gene analysis and drug discovery. In this study, we developed a "turn-on" fluorescence biosensor that enables simple and highly efficient detection of nucleic acid biomarkers. Our approach involves the utilization of 6-carboxyfluorescein modified singl

Resilience has in recent decades been introduced as a term describing a new perspective within the domains of disaster management and safety management. Several theoretical interpretations and definitions of the essence of resilience have been proposed, but less work has described how to operationalise resilience and implement the concept within organisations. This case study describes the impleme

Aviation is a highly inter-connected system. This means that a problem in one area may cause effects in other countries or parts of the Air Transport System (ATS). Examples range from local air traffic disruptions to the 2010 volcanic ash crisis. Agility, like resilience, refers to the ability to cope with dynamics and complexity in a flexible manner, by adjusting and adapting performance and the

This chapter raises issues and ideas for exploring resilience, stemming from various research disciplines, projected on the domain of air traffic management and aviation at interconnected system levels. Attempts are made to connect micro, meso, and macro levels in the aviation sector identifying corresponding research challenges. Examples of this ongoing research are given on how theory has alread

During the Edo Period of Japanese history, many loanwords entered the Japanese language through communication with the Dutch. Now, 164 years after the last significant linguistic exchange took place between the Dutch and the Japanese, it is interesting to see what lexical influence still exists in contemporary modern Japanese and which loanwords have fallen out of use. Therefore, the aim of this b

Transfer RNAs are adaptor molecules, which decode mRNA into protein and,thereby, play a central role in gene expression. During the maturation of a primarytRNA transcript, specific subsets of the four normal nucleosides adenosine,cytidine, guanosine, and uridine are modified. The formation of a modified nucleosidecan require more than one gene product and may involve several enzymaticsteps. In the