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To study plant growth in microgravity, we grew Super Dwarf wheat (Triticum aestivum L.) in the Svet growth chamber onboard the orbiting Russian space station, Mir, and in identical ground control units at the Institute of BioMedical Problems in Moscow, Russia. Seedling emergence was 56% and 73% in the two root-module compartments on Mir and 75% and 90% on(More)
The hypothesis being tested is that Super Dwarf wheat, Triticum aestivum L., plants in the Svet Greenhouse onboard the Russian Space Station Mir will complete a life cycle in spaceflight, providing that the environmental conditions necessary for adequate growth on Earth are supplied. Twenty six seeds of wheat were planted in each of 2 rows of 2 root(More)
The norepinephrine (NE) content in discrete brain areas and the vasopressin content in the neurohypophysial system were assessed in rats after a 9-d spaceflight and after a recovery period (9 d). The NE content in the locus coeruleus decreased significantly in spaceflight rats (2.9 +/- 0.3 vs. 8.9 +/- 0.7 pmol.structure-1 for control rats, p < 0.001), but(More)
We have investigated the role of the membrane molecules CD11/CD18 and CD14 which may mediate the binding of lipopolysaccharide (LPS) to human monocytes, in the induction of the production and release of interleukin (IL)-1 and tumor necrosis factor-alpha (TNF-alpha) by LPS-stimulated cells. Blockade of CD11a, CD11b and CD18 with saturating concentrations of(More)
The use of devices which result in exposure of blood to artificial surface has gained increasing importance in routine medical and surgical practice. In the field of biocompatibility, attention has long been directed at the mechanisms of thrombus formation of surfaces. In recent years however, a special interest has emerged for the study of the(More)
The control of water content and water movement in granular substrate-based plant root systems in microgravity is a complex problem. Improper water and oxygen delivery to plant roots has delayed studies of the effects of microgravity on plant development and the use of plants in physical and mental life support systems. Our international effort (USA, Russia(More)
Features are extracted from seismocardiogram data to correlate with two indexes of myocardial contractility: dP/dt(max) (maximum first derivative of left ventricular pressure) and stroke volume. In the first study on three pigs, it is shown that the time period between the R peak of the ECG and the first peak of the SCG (R-AO period or pre-ejection period,(More)
Calculations of the spontaneous variability of ventricular arrhythmias are usually based upon the results of Holter electrocardiograms recorded either successively or separated by a short time interval. Only recently was it shown that the variability of ventricular premature contractions increases with longer intervals. This study was undertaken to(More)
SVET Space Greenhouse (SG)--the first automated facility for growing of higher plants in microgravity was designed in the eighty years to be used for the future BLSS. The first successful experiment with vegetables was carried out in 1990 on the MIR Space Station (SS). The experiments in SVET SG were resumed in 1995, when an American Gas Exchange(More)
BACKGROUND beta-2 microglobulin is predominant in amyloid deposits in patients undergoing long term hemodialysis. Amyloid accumulation has been ascribed to dialysis membranes, endotoxin contamination of the dialysate, uremia and chronic systemic inflammation associated with enhanced monocytic cytokine production in hemodialyzed patients. Interleukin-1 has(More)