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Att silver har en bakteriedödande effekt har varit känt sedan många århundraden. Historien om silver sträcker sig ända tillbaka till 4000 år före Kristus då de antika Kaldeérna använde silver och det var på den tiden en av mest använda metallerna tillsammans med guld och koppar. Persiska kungar föredrog att dricka vatten endast från bägare gjorda av silver för att vattnet kunde bevaras friskt och Over the past decade, a massive increase in the use of nanomaterials and nanoparticles (NPs) in both commercial and medical applications has occurred. Medical applications include advanced drug delivery vehicles, imaging and hyper thermic therapies. In retinal research, several nanomaterials have been explored in novel treatment approaches, ranging from metals, carbon, polymers and silica to biolo

BACKGROUND: Survival after lung transplantation (LTx) is often limited by bronchiolitis obliterans syndrome (BOS).METHOD: Survey of 278 recipients who underwent LTx. The endpoint used was BOS (BOS grade ≥ 2), death or Re-lung transplantation (Re-LTx) assessed by competing risk regression analyses.RESULTS: The incidence of BOS grade ≥ 2 among double LTx (DLTx) recipients was 16 ± 3% at 5 years, 30

Complex chemical processes require complex simulation models. Selecting decision variables for optimization is increasingly difficult. This paper presents a study of a Subset Selection Algorithm (SSA) applied to the selection of decision variables to facili-tate a reduction of the decision variable combination sets to consider for a process designer, aimed towards improving said selection, optimiz

Background: Odd-odd nuclei, around doubly closed shells, have been extensively used to study proton-neutron interactions. However, the evolution of these interactions as a function of the binding energy, ultimately when nuclei become unbound, is poorly known. The F26 nucleus, composed of a deeply bound π0d5/2 proton and an unbound ν0d3/2 neutron on top of an O24 core, is particularly adapted for t

Using Swedish firm-level data on all firms and their affiliates abroad, we investigate what observable firm and country characteristics affect the size of an affiliate in a particular destination. We employ the richness of the data to investigate the importance of destination country factors in explaining firm outward FDI activities and distinguish between the factors that affect such activities i

In recent years, there has been growing concern that multinational enterprises (MNEs) engage in strategic tax planning in order to shift profits to low-tax jurisdictions. This common perception is generally confirmed by empirical evidence, which is foremost provided for countries with high corporate taxes and relatively complex tax systems. We investigate whether multinational firms in a country w

The article discusses the impact of historical sciences, classical philology and religious studies on the field of “Nuclear Semiotics”, the scholarly discussion concerning communicating information about nuclear waste disposal into the far future. The author uses examples such as a Phoenician funerary inscription, the Antikythera Mechanism, ancient water power, and the reconstruction of mythology

Although, for current laser pulse energies, the weakly nonlinear regime of laser wakefield acceleration is known to be the optimal for reaching the highest possible electron energies, the capabilities of upcoming large laser systems will provide the possibility of running highly nonlinear regimes of laser pulse propagation in underdense or near-critical plasmas. Using an extended particle-in-cell

Schack uppfattas ofta som ett tystlåtet och artigt, rentav ridderligt spel och kan som sådant verka tillhöra en annan tid. Schackspelets uppkomst dateras till åtminstone 600-talets Indien och anses ha varit känt i hela Europa sedan 1000-talet. Spridningen i Europa sammanföll således med feodalsamhällets framväxt efter det västromerska rikets fall, och spelet speglar på många sätt det tidiga feodal

Improved female control over land is often put forth as a means of raising the productivity of smallholder agriculture, enhancing female bargaining power and raising women's incomes. The article uses some quantitative but primarily qualitative data on access to income and decision making, to analyse gender patterns related to welfare, incomes and control over resources in a context where women's r