Platelet function analyzer (PFA-100) in patients with mild-to-moderate bleeding disorders and bleeding disorder of unknown cause.

Background: The sensitivity of the platelet function analyzer (PFA-100, Dade Behring Inc) was shown to be high for the detection of von Willebrand disease (VWD), but limited for platelet function defects.

Objectives: To study the diagnostic utility of PFA-100 in mild-to-moderate bleeding disorders and bleeding disorder of unknown cause (BDUC).

Methods: PFA-100 closure times (CTs) were measured with collagen-epinephrine (EPI) and collagen-adenosine diphosphate (ADP) cartridges in 818 patients with mild bleeding disorders from the Vienna Bleeding Biobank.

Material Characterization Study of Magnetite Nanocrystals for RF Sensing.

Magnetite nanocrystals show promise for electrically small gigahertz frequency applications, which could lead to miniaturizing transformer cores and new sensing technologies. This work presents a rigorous radiofrequency characterization of these nanocrystals using vector network analyzer (VNA) ferromagnetic resonance (FMR) measurements. For the first time, two different average diameters of FeO nanocrystals are investigated (7.

ForMAX - a beamline for multiscale and multimodal structural characterization of hierarchical materials.

The ForMAX beamline at the MAX IV Laboratory provides multiscale and multimodal structural characterization of hierarchical materials in the nanometre to millimetre range by combining small- and wide-angle X-ray scattering with full-field microtomography. The modular design of the beamline is optimized for easy switching between different experimental modalities. The beamline has a special focus on the development of novel fibrous materials from forest resources, but it is also well suited for studies within, for example, food science and biomedical research.

eSoil: A low-power bioelectronic growth scaffold that enhances crop seedling growth.

Active hydroponic substrates that stimulate on demand the plant growth have not been demonstrated so far. Here, we developed the eSoil, a low-power bioelectronic growth scaffold that can provide electrical stimulation to the plants' root system and growth environment in hydroponics settings. eSoil's active material is an organic mixed ionic electronic conductor while its main structural component is cellulose, the most abundant biopolymer.

Optimization of phase contrast imaging with a nano-focus x-ray tube.

Propagation-based phase contrast imaging with a laboratory x-ray source is a valuable tool for studying samples that show only low absorption contrast, either because of low density, elemental composition, or small feature size. If a propagation distance between sample and detector is introduced and the illumination is sufficiently coherent, the phase shift in the sample will cause additional contrast around interfaces, known as edge enhancement fringes. The strength of this effect depends not only on sample parameters and energy but also on the experimental geometry, which can be optimized accordingly.