This report was originally written as a part of the course material in the FPIRC course Paper Mechanics given at STFI/KTH. The aim of the report is to explain the ideas behind analytical network theories based on the homogeneous strain assumption in a simple way. One example, corresponding to the Cox model, [2], is also worked out in detail in the report.

The use of timber as a construction material demands continuous improvements of our knowledge about the material and computational techniques for structural analysis and design.In this report the fracture properties of wood are studied and implemented into numerical crack propagation models. The numerical algorithms are utilized for computing the development of cracks in structural elements. Six t

When the COVID-19 pandemic hit, two contrasting images quickly became representative of the crisis. On the one hand, there were heroic doctors working day and night with the novel virus, risking their lives and making sacrifices to save others. On the other, there were ‘anti-maskers’ and ‘anti-vaxxers’: people doubting if the virus is real, questioning the effectiveness of protective measures, sus

Polymer electrolyte fuel cell (PEFC) development goes hand in hand with a complete understanding of its behavior in realistic operating conditions. Hence, analysis based on characterizations is essential to determine the predominant effects strongly affecting PEFC performance. Experimental research is carried out using a single PEFC under controlled conditions. The primary objective is to examine

ObjectiveTricuspid annuloplasty is associated with increased risk of atrioventricular block and subsequent implantation of a permanent pacemaker. However, the exact incidence of permanent pacemaker, associated risk factors, and outcomes in this frame remain debated. The aim of the study was to report permanent pacemaker incidence, risk factors, and outcomes after tricuspid annuloplasty from nation

Based on a study of nurses’ social media uses during the pandemic, this article aims to illuminate how nurses used social media to position themselves as nurses and safeguard the nursing profession. Thirty semi-structured interviews were conducted with nurses in the three Scandinavian countries. Data were thematically analysed, with theoretical inspiration from Berger and Luckmann (1966). The find

Traditional strict separation of fungi into ecological niches as mutualist, parasite or saprotroph is increasingly called into question. Sequences of assumed saprotrophs have been amplified from plant root interiors, and several saprotrophic genera can invade and interact with host plants in laboratory growth experiments. However, it is uncertain if root invasion by saprotrophic fungi is a widespr

Background: Antioxidants in medical devices, added to protect polymers or adhesives, may also cause contact dermatitis in some individuals. Objectives: To present data on sensitization to 4,4′-thiobis(2-tert-butyl-5-methylphenol), an antioxidant detected in some types of medical devices, for six patients that experienced eczematous reactions to different medical devices. Methods: Patch testing wit

Microglial cells are brain-specific macrophages that swiftly react to disruptive events in the brain. Microglial activation leads to specific modifications, including proliferation, morphological changes, migration to the site of insult, and changes in gene expression profiles. A change in inflammatory status has been linked to many neurodegenerative diseases such as Parkinson's disease and Alzhei

We establish an operator theoretic version of the Wiener–Ikehara Taube-rian theorem and use it to obtain a short proof of the Prime number theorem that should be accessible to anyone with a basic knowledge of operator theory and Fourier analysis.

Premise: Besides the beneficial plant-fungus symbiosis in mycorrhizal plants, bacteria also enhance plant fitness via tripartite interactions. While bacterial associations are presumably just as important for the obligate mycorrhizal family Orchidaceae, little is known about orchid associating bacteria (OAB). Methods: We examined the OAB communities of two, congeneric, terrestrial orchids, Platant

We consider a perturbation problem for embedded eigenvalues of a self-adjoint differential operator in L2(R;Rn). In particular, we study the set of all small perturbations in an appropriate Banach space for which the embedded eigenvalue remains embedded in the continuous spectrum. We show that this set of small perturbations forms a smooth manifold and we specify its co-dimension. Our methods invo

Uppfattningarna om hur samhället ska utformas varierar kraftigt mellan olika tidsepoker. Under efterkrigstiden fick idén om att socialtjänsten skulle vara en aktiv aktör i utvecklingen av välfärdsstaten starkt fotfäste bland politiska partier och bland professionella. Det skulle ske genom medverkan i samhällsplaneringen och genom att arbeta strukturinriktat. Men ideal är en sak och verklighet en a

Due to the high variance in response rates concerning anti-PD1 immunotherapy (IT), there is an unmet need to discover innovative biomarkers to predict immune checkpoint inhibitor (ICI)-efficacy. Our study included 62 Caucasian advanced-stage non-small cell lung cancer (NSCLC) patients treated with anti-PD1 ICI. Gut bacterial signatures were evaluated by metagenomic sequencing and correlated with p

Utvärdering behövs för att skapa kunskap om vilka interventioner som fungerar på lite längre sikt, för vilka de fungerar och vad som gör att de fungerar. I kapitlet presenteras en så kallad utvärderingscykel som jag illustrerar med ett preventionsprogram som förbättrat barns tandhälsa. Kapitlet tar även upp implementering av resultat från utvärdering och avimplementering av det som kan behöva fasa

This work is primarily a legal commentary on the final appeal judgment of the Supreme People’s Court of China on the Archangelos Gabriel case. In the opinion of the author, the judgment is sound and reasonable and brings to light a measure of judicial activism into the arena of salvage litigation in China. Basically, the apex Court held that the case did not fall within the purview of salvage in t

The original chapter on adaptive-filter models addressed the issue of how far such models were consistent with experimental evidence. Here we consider one particularly important kind of evidence, that concerning the nature of the synaptic plasticity that underlies cerebellar learning. The basic decorrelation learning rule employed by the adaptive-filter model can be translated into spike timing-de