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An improved understanding of the emerging business models for hydrogen applied in the transport sector is crucial to remove barriers for hydrogen uptake. The aim of this study is to create a characterisation of the current landscape for hydrogen road mobility in Sweden by mapping out the business model for hydrogen producers, hydrogen filling station owners and hydrogen vehicle manufacturers. This

We report on the preparation of high performance field-effect transistors (FETs) based on large areas of aligned films of a TTF derivative, namely, tetrakis-(octadecylthio)-tetrathiafulvalene (TTF-4SC18). TTF-4SC18 assembles into one-dimensional stacks in which the long alkyl chains promote intermolecular π-π overlapping due to their extremely closely packed nature. The films were prepared from so

This paper is intended to introduce the technology to solve some of the deficiencies of the direct digital radiology. Nowadays, digital radiology is the latest progression in dental imaging, which has become an essential part of dentistry. There are two main parts of the direct digital radiology comprised of an intraoral X-ray machine and a sensor (digital image receptor). The dentists and the den

Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in discordance with the observed Li abundances in warm Population II dwarf and subgiant stars. Among the physically best motivated ideas, it has been suggested that this discrepancy can be alleviated if the stars observed today had undergone photospheric depletion of lithium. Aims. The cause of this d

The purpose of this thesis is to examine the potential business model transformation in the forest industry, and to find out how, and in which areas future profits will be made. With an abductive approach, the study was conducted by forming a comprehension of the business model transformation in the forest industry, based on the developed theoretical framework. The empirical findings were generate

The increasing global demand for food will be met chiefly by increased intensification of production. For crops, this will be achieved largely by increased yields per area with a smaller contribution from an increased number of crops grown in a seasonal cycle. Production systems show a spectrum of intensification practices characterised by varying methods of site preparation and pest control, and

Polyphagous insect species develop using multiple host plants. Often considered beneficial, polyphagy can also be costly as host nutritional quality may vary. Drosophila suzukii (Matsumura) is an invasive species that can develop on numerous fruit species over the annual cycle. Here, we assessed the contribution of winter-available fruit to the development of seasonal populations of D. suzukii, un

With the current climate crisis, it is time to reframe our understanding of active mobility as a solution for short journeys only. When combined with public transport, almost any journey can be an active one. To compete with private automobile travel, public transport must combine the speed of motorised transport, the reliability of dedicated right-of-way services, and the flexibility of active tr

In computer graphics, there are numerous aspects that must be considered when rendering images of virtual scenes:What physical light-generating phenomena do we care about? How should object and material surfaces be described? And how should these be stored to ensure as fast and efficient image rendering as possible?As a part of this thesis, a method for rendering images of scenes lit by virtual at

We investigate various performance indicators of ten leading journals in the field of Agricultural Economics and Policy over the period from 2000 to 2020. More specifically, we combine various data sources to derive a coherent record of indicators including acceptance rates, times between submission and first response and impact factors. We show that, for the discipline at large, the turn-around t

BACKGROUND: Takotsubo syndrome (TS) is a potentially life-threatening acute cardiac syndrome with a clinical presentation similar to myocardial infarction and for which the natural history, management, and outcome remain incompletely understood. Our aim was to assess the relative short-term mortality risk of TS, ST-segment–elevation myocardial infarction (STEMI), and non-STEMI (NSTEMI) and to iden

Rwanda has undertaken a land registration and titling program since 2008 with a registration of 10.3 million land parcels in 2013. The aim of this paper is to investigate the early effects of the program on tenure security and agricultural investments since few studies have been carried out in this research area. The study was undertaken in Musanze district in Northern Rwanda, with specific focus

Upper extremity blocks are useful as both sole anaesthesia and/or a supplement to general anaesthesia and they further provide effective postoperative analgesia, reducing the need for opioid analgesics. There is without doubt a renewed interest among anaesthesiologists in the interscalene, supraclavicular, infraclavicular, and axillary plexus blocks with the increasing use of ultrasound guidance.

Security and sustainability are prioritized goals in the “Western liberal” world. Maintaining democratic resources while simultaneously strengthening society’s ability to deal with security issues firmly resonates with ideals associated with social sustainability. However, merging normative theories like security and social sustainability produces conceptual difficulties that are hard to resolve.

Quasi-markets in the provision of public services are increasingly common but also highly contested. We formulate a conceptual framework based on economic theory to describe how quasi-markets differ from traditional markets in five aspects: 1) revenues, costs, and profits; 2) the matching of supply and demand; 3) competition; 4) structural change; and 5) rent-seeking. Using the assumption of profi

Nätläkare, vårdgivare som tillhandahåller sjukvårdstjänster via smartphoneappar, har gått från att vara perifera inslag i den svenska sjukvården till att på allvar utmana det konventionella sättet att bedriva sjukvård. Den tillgänglighet som nätläkare erbjuder är oöverträffad men alla patientgrupper har inte sett sin tillgång till vård förbättras i samma utsträckning tack vare nätläkare.Syftet medOnline doctor services, healthcare provided via smartphone apps, have gone from being peripheral to seriously challenging the conventional Swedish way of providing healthcare services. The accessibility of online doctors is unsurpassed but all patient groups have not gotten better access to healthcare thanks to online doctors.The aim of this study was to investigate how perceptions of the online d

Popular Abstract in Swedish Denna avhandling behandlar två ämnen inom trådlös kommunikation: interferens mellan frekvenshoppande (FH) nätverk och fleranvändardiversitet. I arbetet på FH nätverk undersöks ett system där frekvenshopp används för att möjliggöra samtidig tillgång till kanalen för multipla okoordinerade nätverk. Detta åstadkoms genom att frekvenshoppen sker varje gång ett ny paket skaThis thesis deals with two topics in wireless communications: interference between frequency-hopping (FH) networks, and multiuser diversity. The work on FH treats a system where FH is used to provide simultaneous access to the channel for multiple uncoordinated wireless networks. This is achieved by performing frequency hops on a packet-by-packet basis, and letting the sequence of hopping frequen

In this study, we assessed the prevalence of self-rated post-traumatic stress in relation to reported trauma in an unselected primary care population. A total of 1113 out of 1378 consecutive attenders (response rate 81%) to 10 health centres completed the self-report instruments Impact of Event Scale (IES), and Post Traumatic Symptom Scale (PTSS-10). A horizontal visual analogue scale (VAS; 0-100