Sodium chloride is an ionic checkpoint for human T2 cells and shapes the atopic skin microenvironment.

The incidence of allergic diseases has increased over the past 50 years, likely due to environmental factors. However, the nature of these factors and the mode of action by which they induce the type 2 immune deviation characteristic of atopic diseases remain unclear. It has previously been reported that dietary sodium chloride promotes the polarization of T helper 17 (T17) cells with implications for autoimmune diseases such as multiple sclerosis.

Fast determination of impurities in metallurgical grade silicon for photovoltaics by instrumental neutron activation analysis.

Standard wafer solar cells are made of near-semiconductor quality silicon. This high quality material makes up a significant part of the total costs of a solar module. Therefore, new concepts with less expensive so called solar grade silicon directly based on physiochemically upgraded metallurgical grade silicon are investigated.

Determination of k0-values for the reactions 94Zr (n, gamma) 95Zr and 96Zr (n, gamma) 97Zr-97mNb by irradiation in highly thermalized neutron flux.

Determination of k(0)-factors for zirconium isotopes was performed by co-irradiation of Zr and Au-Al. Due to the highly thermalized irradiation position at FRM-II, interferences from epithermal neutrons were found largely decreased for (96)Zr (n, gamma) (97)Zr-(97m)Nb, the reaction with the highest Q(0)-value in all (n, gamma) reactions. Results showed that, the (95)Zr k(0)-values from this work were the same as the recommended ones.

Silicon doping system at the research reactor FRM II.

Silicon doping has being carried out at FRM II since 2 years. During the commissioning of our new reactor, a simple test rig was used to determine the neutron flux profile at the irradiation position and optimise a nickel absorber liner, which is equipped at the irradiation position for vertical smoothing of the neutron flux profile. MCNP-code was used during the design of the liner.

Production of 177Lu at the new research reactor FRM-II: Irradiation yield of 176Lu(n,gamma)177Lu.

Due to its physical and chemical characteristics, 177Lu is a very attractive radionuclide for use in nuclear medicine. This paper introduces a method for a precise calculation of the irradiation yield of 177Lu produced by neutron activation of 176Lu in a nuclear reactor. The calculation is based on the Westcott convention which requires the knowledge of the neutron flux parameters.

Doppler-guided cannulation of internal jugular vein, subclavian vein and innominate (brachiocephalic) vein--a case-control comparison in patients with reduced and normal intracranial compliance.

Objective: A case-control comparison of Doppler guidance on the success rate of central venous cannulation in patients with normal or reduced intracranial compliance.

Design: A single operator performed central venous access procedures with continuous wave Doppler guidance. It was used on patients on a ventilator.

Dosimetry of ionizing radiation using an iodide/iodate aqueous solution.

Details of a new aqueous chemical dosimeter consisting of a mixture of KI (0.6 M) and the electron scavenger KIO3 (0.1 M) in 0.

Transformation of human osteoblast cells to the tumorigenic phenotype by depleted uranium-uranyl chloride.

Depleted uranium (DU) is a dense heavy metal used primarily in military applications. Although the health effects of occupational uranium exposure are well known, limited data exist regarding the long-term health effects of internalized DU in humans. We established an in vitro cellular model to study DU exposure.

Premature chromosome condensation assay for biodosimetry: studies with fission-neutrons.

Characterization of the premature chromosome condensation assay for radiation quality is needed. To that end, human lymphocytes were exposed in vitro to various doses of 250-kVp x rays (Y(D) = 4 keV microm(-1), Y(D) is the dose-mean lineal energy of the absorbed dose distribution, D(y), where y is defined as the energy deposited in a volume by a single event divided by the mean chord length of the volume) and to fission neutrons (Y(D) = 65 keV microm(-1)). The distribution of prematurely condensed chromosome and fragments following exposure to x rays or to neutrons were non-Poisson after repair at 37 degrees C for 24 h.

Mixed-field neutrons and gamma photons induce different changes in ileal bacteria and correlated sepsis in mice.

High doses of radiation induce septicaemia, from bacterial translocation, and death in animals. Mice were exposed to either comparable lethal (LD90/30) or sublethal (LD0/30) doses of mixed-field [n/(n + y) = 0.67] or pure 60Co gamma-photon radiation.

Energy deposition events produced by fission neutrons in aqueous solutions of plasmid DNA.

Using an agarose gel electrophoresis assay, single-strand breaks (ssb) induced by fission neutrons and 60Co gamma-rays in aerobic aqueous solutions of pBR322 plasmid DNA were studied. The energy-deposition events of the two radiations were characterized using a Rossi-type proportional counter to measure lineal-energy spectra. For neutrons, the dose-weighted lineal-energy mean, yD, is 63 keV micron-1--about 30 times that for gamma-rays.

Late mitosis/early G1 phase and mid-G1 phase are not hypersensitive cell cycle phases for neoplastic transformation of HeLa x skin fibroblast human hybrid cells induced by fission-spectrum neutrons.

A two- to threefold increase in the rate of neoplastic transformation in cells irradiated at a dose rate of 0.22 cGy/min with fission-spectrum neutrons compared to that at 10.7 cGy/min has been confirmed with the use of alkaline phosphatase chromogenic substrate Western Blue staining to detect foci of neoplastically transformed cells through their expression of a tumor-associated antigen, the end point of the HeLa x skin fibroblast human hybrid cell transformation assay.

[Chemical composition of seeds from Cucumeropsis mannii Naudin and their suitability as food].

Dehulled seeds from Cucumeropsis Mannii Naudin mainly consist of lipids (40.3%) and proteins (34.5%).

Isolation and characterization of some proteinase inhibitors from Phaseolus vulgaris var. nanus.

Six proteinase inhibitors have been isolated from a crude inhibitor preparation from Phaseolus vulgaris var. nanus (bush bean: Borlotto) by gel chromatography and ion exchange chromatography. The isoelectric points of the inhibitors are between 4.