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Arctic-boreal landscapes are experiencing profound warming, along with changes in ecosystem moisture status and disturbance from fire. This region is of global importance in terms of carbon feedbacks to climate, yet the sign (sink or source) and magnitude of the Arctic-boreal carbon budget within recent years remains highly uncertain. Here, we provide new estimates of recent (2003–2015) vegetation
This thesis is composed of five papers, which all attempt to optimise calculations of scattering amplitudes in high-energy-physics collisions. These scattering amplitudes are a key part of theoretical predictions for particle-physics experiments like the Large Hadron Collider at CERN. The first four papers are the main topic of the thesis, and describe a novel method called chirality flow. Chirali
När LTH hade hunnit ungefär till halvtid, det vill säga för 25 år sedan, uppkom en liten centrumbildning för rehabiliteringsteknik med akronymen ”Certec”. Nu år 2011 ingår Certec i Institutionen för Designvetenskaper med sitt forskarutbildningsämne ”rehabiliteringsteknik” som en av institutionens sju forskningsinriktningar.Namnet ”Certec” behövs alltså inte längre, men det finns kvar som vårt posi
Avhandlingens syfte är att utveckla kunskapen om vård som en situerad praktik såväl inom som utanför den medicinska miljön. Avhandlingen problematiserar fenomenet med förfalskade och illegitima medicinska produkter, vilket är ett problem som angår mellanstatliga organisationer, som exempelvis WHO (Världshälsoorganisationen). Samtidigt som rättsliga sanktioner och teknologisk innovation förespråkasThe aim of this dissertation is to advance knowledge about care as situated practices within and beyond medical institutional settings. It addresses the phenomenon of substandard and falsified medical products, an issue that concerns state governments globally and organisations including the World Health Organization. While legal sanctions and technological innovation are strongly advocated to pro
Review of "Small bodies of the Solar System", Hans Rickman, 2021, World Scientific.
Object shift (OS) is a word order phenomenon in Scandinavian languages where under some circumstances the object appears before a sentential adverb. Despite the frequent assumptions that word order is determined in syntax, and despite the link of OS and syntactic phenomena like V2, there is no consensus that OS is a syntactic phenomenon. Particularly, it has been observed that OS targets specifica
A wide variety of high temperature experimental data obtained in this study complement the data on the oxidation of the two di-isobutylene isomers presented in Part I and offers a basis for an extensive validation of the kinetic model developed in this study. Due to the increasing importance of unimolecular decomposition reactions in high-temperature combustion, we have investigated the di-isobuty
Brain tumours are among the most common cancer diagnoses in paediatrics. Children with brain tumours are at risk of developing sleep problems because of direct and indirect effects of the tumour and its treatment, in addition to psychosocial and environmental factors. Sleep has an important role in physical and psychological wellbeing, and sleep problems are associated with many adverse outcomes.
Orthogonal multi-user multiple-input multiple-output (MU-MIMO) channels allow for optimum performance with simplified precoding/equalization, and they achieve maximum multiplexing gain which is shared fairly among users. Reconfigurable intelligent surface (RIS) constitutes a promising cost-efficient solution to improve the wireless channel, since they consist of passive reflecting elements able to
FinEstBeAMS is an atmospheric and materials science beamline located at the 1.5 GeV storage ring of the MAX IV Laboratory in Lund, Sweden. It offers a very wide photon energy range 4.5-1300 eV and radiation with different polarization characteristics. The beamline has three end stations installed at two branch lines. The new solid state end station (SSES) is described in this paper. It is a high-t
One of the biggest challenges parties in multiparty governments face is making policies together and overcoming the risk of a policy stalemate. Scholars have devoted much attention to the study of how various institutions in cabinet and parliament help coalition parties with conflicting policy preferences to be efficient in the policy-making process. Coalition agreements are one of many instrument
As the market share of electric vehicles increases, the need for a charging infrastructure increases correspondingly. Modern Electric Road Systems is a cost effective charging infrastructure that allows electric vehicles to charge while driving and consequently allowing for smaller batteries in EVs. To assess the potential of electric road system technology, a demonstrator of conductive electric r
The use of artificial neural networks for the purpose of image classification, together with the advancement in computational capabilities of edge devices, plays an important role in the new emerging 5G use case scenarios. However, one of the main challenges of applications involving the use of these networks in edge devices is still the limitation of computational resources. An alternative for sa
The main focus of this paper is to establish diagnostics of stator faults of the stator windings of a Permanent Magnet Synchronous Machine (PMSM) drive system. To accomplish this objective, a new diagnostic method is proposed. In the proposed method, stator fault detection is based on the dc offset of the Stator Flux Linkage (SFL) in the antisynchronous reference frame (ASRF). The DC offset of the
Aromatic residues form a significant part of the protein core, where they make tight interactions with multiple surrounding side chains. Despite the dense packing of internal side chains, the aromatic rings of phenylalanine and tyrosine residues undergo 180° rotations, or flips, which are mediated by transient and large-scale “breathing” motions that generate sufficient void volume around the arom
In this paper we investigate simultaneous radial distortion calibration and motion estimation for vehicles travelling parallel to planar surfaces. This is done by estimating the inter-image homography between two poses, as well as the distortion parameter. Radial distortion correction is often performed as a pre-calibration step; however, accurately estimating the distortion profile without specia
