Excitation and RF Field Control of a Human-Size 10.5-T MRI System.

This paper presents an investigation of methods for improving homogeneity inside various dielectric phantoms situated in a 10.5 T human-sized MRI. The transmit B ( ) field is excited with a quadrature fed circular patch-probe and a 12 element capacitively-loaded microstrip array.

Inactivation of the tyrosine phosphatase SHP-2 drives vascular dysfunction in Sepsis.

Background: Sepsis, the most severe form of infection, involves endothelial dysfunction which contributes to organ failure. To improve therapeutic prospects, elucidation of molecular mechanisms underlying endothelial vascular failure is of essence.

Methods: Polymicrobial contamination induced sepsis mouse model and primary endothelial cells incubated with sepsis serum were used to study SHP-2 in sepsis-induced endothelial inflammation.

High-sensitive multi-pass imaging interferometry of a gas/plasma jet.

To increase the sensitivity of optical interferometry for diagnostic of gas/plasma jet density with weak refractivity, we realize several multi-pass probing setups with the visualization field. These optical setups are based on a modified Michelson interferometer with multi-pass and multi-angle propagation of the probing beam through the transparent inhomogeneity. In comparison to the standard single-pass Mach-Zehnder setup, the multi-pass interferometer allows for an increase in the measurement sensitivity of up to 8 times.

Components of the translational machinery are associated with juvenile glycine receptors and are redistributed to the cytoskeleton upon aging and synaptic activity.

The translation eukaryotic elongation factor 1alpha (eEF1A) is a monomeric GTPase involved in protein synthesis. In addition, this protein is thought to participate in other cellular functions such as actin bundling, cell cycle regulation, and apoptosis. Here we show that eEF1A is associated with the alpha2 subunit of the inhibitory glycine receptor in pulldown experiments with rat brain extracts.

Possible applications of aquatic bioregenerative life support modules for food production in a Martian base.

Water is the essential precondition of life in general and also for the establishment of a Martian base suitable for long duration stays of humans. It is not yet proven if there is indeed a "frozen ocean" under the surface of Mars but if this could be verified it would open innovative aspects for the construction of bioregenerative life support systems (BLSS). In a general concept higher plants will play the predominant role in a Martian BLSS.

Novel aquatic modules for bioregenerative life-support systems based on the closed equilibrated biological aquatic system (C.E.B.A.S.).

The closed equilibrated biological aquatic system (C.E.B.

Aquatic modules for bioregenerative life support systems based on the C.E.B.A.S. biotechnology [correction of biotechnilogy].

Most concepts for bioregenerative life support systems are based on edible higher land plants which create some problems with growth and seed generation under space conditions. Animal protein production is mostly neglected because of the tremendous waste management problems with tetrapods under reduced weightlessness. Therefore, the "Closed Equilibrated Biological Aquatic System" (C.

Aquatic food production modules in bioregenerative life support systems based on higher plants.

Most bioregenerative life support systems (BLSS) are based on gravitropic higher plants which exhibit growth and seed generation disturbances in microgravity. Even when used for a lunar or martian base the reduced gravity may induce a decreased productivity in comparison to Earth. Therefore, the implementation of aquatic biomass production modules in higher plant and/or hybrid BLSS may compensate for this and offer, in addition, the possibility to produce animal protein for human nutrition.

The C.E.B.A.S.-Minimodule: behaviour of an artificial aquatic ecological system during spaceflight.

The C.E.B.

C.E.B.A.S.-AQUARACK: second generation hardware and latest scientific results.

A second version of the C.E.B.

German CELSS research with emphasis on the C.E.B.A.S.-project.

In general the German CELSS research program covers both animal and plant systems. In the field of botany a higher plant growth unit is disposed. The construction of a continuous culture device for unicellular algae in long-term multi-generation experiments will start in 1990.