Sökresultat

Soot, or black carbon (BC), aerosol is a major climate forcer with severe health effects. The impacts depend strongly on particle number concentration, size and mixing state. This work reports on two field campaigns at nearby urban and rural sites, 65gkm apart, in southern Sweden during late summer 2018. BC was measured using a single-particle soot photometer (SP2) and Aethalometers (AE33). Differ

Gardeners have always used plants of different origins, moving them around to new environments, working hard to make the plants survive and thrive under new conditions. In gardens, vitality is often regarded as an asset and a reason to cultivate certain plants. Many varieties that have spread over centuries are today regarded as ‘belonging’, as more or less ‘natural’, and even as heritage plants. Gardeners have always used plants of different origins, moving them around to new environments, working hard to make the plants survive and thrive under new conditions. In gardens, vitality is often regarded as an asset and a reason to cultivate certain plants. Many varieties that have spread over centuries are today regarded as ‘belonging’, as more or less ‘natural’, and even as heritage plants.

We study particle trapping driven by the axial primary radiation force (A-PRF) in shaped traps exposed to standing bulk acoustic waves (S-BAW) using numerical simulations and experiments. The utilization of the stronger A-PRF as the main retention force is a consequence of standing-wave formation along the flow direction, instead of the orthogonal direction as in the case of traditionally used lat

Rural areas are regaining attention as key resource holders. This includes the attractiveness of intact and traditional cultural elements and heritage which helps to create new opportunities. However, renewal is needed for rural areas to be competitive beyond tourism. Knowledge exchange and transfer is seen as an enabling tool for regeneration and heritage valorization, although it has mostly been

BACKGROUND AND PURPOSE: Knowledge of predictive factors can foster the development of preventive approaches. This study examined how prevalence and severity of fall-related activity avoidance evolve over a 3-year period in people with Parkinson disease (PD). A specific aim was to identify predictive factors of fall-related activity avoidance (ie, modified Survey of Activities and Fear of Falling i

Ocean Drilling Program (ODP) Site 1051 (Blake Nose, western North Atlantic) is of crucial importance for reconstructing diatom evolution and biosiliceous sedimentation patterns through the early Cenozoic period of extreme greenhouse warmth followed by the progressive global cooling. The magnetostratigraphy in Hole 1051A, however, has been subject to divergent interpretations resulting in multi-mil

A new electricity-production concept attracted massive media attention in Sweden during 2008 when companies be-gan marketing small-scale photovoltaic panels (PVs) and microwind turbines. The products were launched by their simplicity: the components are so easy to install that anyone can do it. How, then, do households perceive these products? Why would households choose to buy them? What do house

Targeted genome editing technology can correct the sickle cell disease mutation of the β-globin gene in hematopoietic stem cells. This correction supports production of red blood cells that synthesize normal hemoglobin proteins. Here, we demonstrate that Transcription Activator-Like Effector Nucleases (TALENs) and the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 nuclease

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

Histological grade is one of the most commonly used prognostic factors for patients diagnosed with breast cancer. However, conventional grading has proven technically challenging, and up to 60% of the tumors are classified as histological grade 2, which represents a heterogeneous cohort less informative for clinical decision making. In an attempt to study and extend the molecular puzzle of histolo

Energy-intensive processing industries (EPIs) such as iron and steel, aluminum, chemicals, cement, glass, and paper and pulp are responsible for a large share of global greenhouse gas emissions. To meet 2050 emission targets, a transition to low carbon, often radical innovations is required, but this process is going slow. Insights from sociotechnical and innovation systems perspectives are theref

Wear particles commonly used for experiments may carry adherent endotoxin on their surfaces, which may be responsible for the observed effects. In this study, we attached titanium plates to the tibiae of 20 rats. After osseointegration, endotoxin-contaminated or uncontaminated high-density-polyethylene (HDPE) particles were applied. Contaminated specimens showed a dramatic resorption of bone after

A classical solution for matching two image patches is to use the cross-correlation coefficient. This works well if there is a lot of structure within the patches, but not so well if the patches are close to uniform. This means that some patches are matched with more confidence than others. By estimating this uncertainty, more weight can be put on the confident matches than those that are more unc

In order to understand exciton migration and fluorescence intensity fluctuation mechanisms in conjugated polymer single molecules, we studied fluorescence decay dynamics at "on" and "off" fluorescence intensity levels with 20 ps time resolution using MEH-PPV [poly(2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] dispersed in PMMA. Two types of intensity fluctuations were distinguished for sin

Popular Abstract in Swedish Bacillus subtilis är en modellorganism för endosporbildande bakterier. Endosporen är ett vilostadium som kan bildas av vissa bakteriarter vid svält. Endosporer är mycket tåliga. De kan t.ex. överleva extrem värme, UV-strålning, uttorkning och farliga kemikalier utan att skadas. När tillgången på näring på nytt kan tillåta växt av bakterien, kan endosporen germinera och Bacillus subtilis is a model organism for endospore-forming gram-positive bacteria. Endospores are formed in response to nutrient starvation. They can resist harsh environments and last for long periods of time. Once nutrients again become available, the endospore can germinate and the vegetative life cycle be resumed. The outermost layers of the endospore are cortex and coat that protect the cell

This paper is about the recent discussions (known as Denkmalpflegediskussion) on the principles and practices of state heritage management in Germany. In an expert report commissioned by the prominent German politician Antje Vollmer from Dieter Hoffmann-Axthelm, a number of fundamental criticisms were made. They concern existing practices of state heritage management, some of which are said to ali