The stability properties of discrete time model reference adaptive control systems are examined. Lyapunov functions and strong convergence results are given for some classes of adaptive systems.

Hardwood lignin is made of up to 75% syringyl-units and the bioconversion of syringate and syringaldehyde is therefore of considerable interest for biological valorization of lignin. In the current study, we have isolated a syringate-consuming bacterium identified as Microbacterium sp. RG1 and characterized its growth on several lignin model compounds. Growth was observed on syringate, 3-O-methyl

Standardisation is one of the oldest human activities. Industrial revolution and electro-technical advancements have further increased the importance of standardisation. Nowadays standards regulate our daily life not only through the products and services we use, but also directly as laws. In the EU, Harmonised European Standards (HESs) are used in legislation—occupying the law’s domain—but at the

Non-coagulating milk is a serious problem in the cheese industry, since it decreases cheese yield, resulting in decreased economic output. This study evaluated rennet-induced coagulation properties and composition of milk from individual Swedish Red Dairy Cattle. Milk samples from 679 individual cows were rheologically evaluated, of which 18.1% of the cows produced non-coagulating milk and 18.9%

Longer product lifetimes are promoted by the EU's Circular Economy Action Plan, but incentivising longer lifetimes could also result in trade-offs between different environmental impacts for some product categories. LED lamps are still experiencing improvements in efficacy and material design, which raises questions about whether longer lifetimes are desirable from an overall environmental perspec

Bacteria and fungi are the two principal decomposer groups in soils, determining rates of biogeochemical cycling. Rewetting of dry soils induces enormous dynamics in biogeochemistry. Bacteria have been shown to exhibit large variation in growth over time upon drying-rewetting (D/RW), however, in studies to date, fungal growth has shown limited responsiveness. Here we investigated whether fungal gr

Flera studier har på senare år visat att den läkare som själv blir sjuk upplever sig försatt i en särskilt problematisk situation. Ett sätt att öka förståelsen för den sjukdomsdrabbade läkarens upplevda dilemma kan vara att närstudera läkares sjukdomsnarrativ. I denna artikel uttolkas tre skriftliga vittnesmål av läkare med morfinmissbruk, med särskild tonvikt på Michail Bulgakovs semifiktiva nove

Lunds historia innehåller många medicinhistoriska händelser. Medicinhistoria som akademisk disciplin är dock inte endast deskriptiv utan även analyserande. Flera institutioner vid Lunds universitet bedriver medicinhistorisk forskning från olika utgångspunkter. Medicinhistoria är ett viktigt ämne för förståelsen av dagens medicin och denna översikt vill visa varför och hur ämnet behandlas vid Lunds

Droplet volume and temperature affect contact angle significantly. Phase change heat transfer processes of nanofluids – suspensions containing nanometre-sized particles – can only be modelled properly by understanding these effects. The approach proposed here considers the limiting contact angle of a droplet asymptotically approaching zero-volume as a thermophysical property to characterise nanofl

’Patografi’ är beteckningen på en relativt ung och snabbt växande litterär genre. Syftet med denna artikel är att introducera den patografiska genren och att lämna ett bidrag till förståelsen av dess historiska uppkomst. Tre omvälvningar i skolmedicinen vid 1800-talets slut och 1900-talets början lyfts fram som betydelsefulla för den patografiska genrens framväxt: sanatoriernas tillkomst, stigmati

Recent large-scale genetic studies have allowed for the first glimpse of the effects of common genetic variability in dementia with Lewy bodies (DLB), identifying risk variants with appreciable effect sizes. However, it is currently well established that a substantial portion of the genetic heritable component of complex traits is not captured by genome-wide significant SNPs. To overcome this issu

Background: In problem gambling, recent years have seen an expansion of online gambling in treatment-seeking patients. Television advertising may promote risky gambling, and this study aimed to assess gambling-related advertisements, with respect to potentially risky messages, in a country with high rates of online gambling among treatment seekers, for online casino particularly in treatment-seeki

Background: Being foreign born, i.e. not born in the reception country or belonging to an ethnic minority, has been described as a risk factor of problem gambling, although research so far has been inconclusive. Also, there is limited knowledge about whether this association is caused by differing gambling norms. The present study aimed to study whether foreign origin is associated with problem ga

One of the most ubiquitous techniques within attosecond science is the so-called reconstruction of attosecond beating by interference of two-photon transitions (RABBIT). Originally proposed for the characterization of attosecond pulses, it has been successfully applied to the accurate determination of time delays in photoemission. Here, we examine in detail, using numerical simulations, the effect

Complement component C3 is central to the complement system, a humoral effector mechanism of innate immune defense. When activated, C3 covalently binds to target particles, marking them for uptake and clearance by phagocytosis. We now show that C3 also exists within the cytosol where it interacts with ATG16L1, and is therefore involved in the intracellular clearance and recycling of material by ma