Hexapod.

SAGE III (Stratospheric Aerosol and Gas Experiment), an Earth-observation instrument developed by NASA's Langley Research Center (LaRC), was one of the first scientific external payloads selected for the International Space Station. It was conceived to fly on a spacecraft able to provide +/- 1 degree pointing accuracy. Since the ISS's attitude can vary by several degrees over a long period, it was therefore necessary to provide a dedicated nadir-pointing system.

Erythrocyte membrane-bound acetylcholinesterase in vitamin E deficient rabbits.

1. The specific activities of erythrocyte membrane-bound acetylcholinesterase (EC 3.1.

Effect of chronic administration of verapamil in Duchenne muscular dystrophy.

1. In DMD patients the effect of chronic treatment with verapamil was investigated in the p-nitrophenylphosphatase from erythrocytes, the CK and LDH in serum and the functional activity of the muscle. 2.

Fish muscle cytoskeletal network: its spatial organization and its degradation by an endogenous serine proteinase.

The extraction of white croaker skeletal myofibrils with KI rendered a residue in which a network of longitudinal and transverse filaments could be observed by scanning electron microscopy. A trypsin-like serine proteinase isolated from the same muscle was able to produce a complete and rapid disruption of the network, while major myofibrillar proteins were only slightly modified. This fact suggests that the disassembly of the cytoskeletal network may be an early event in the proteolysis of myofibrils.

Activation of an alkaline proteinase from fish skeletal muscle by fatty acids and sodium dodecyl sulphate.

1. Fish skeletal muscle contains an alkaline thiol proteinase with a temperature optimum of 60 degrees C and undetectable activity below 50 degrees C. 2.

Allosteric transition of erythrocyte alkaline phosphatase from Duchenne muscular dystrophy (DMD) patients and Duchenne muscular dystrophy carriers (Homo sapiens).

1. The kinetic properties of the p-nitrophenylphosphatase (EC 3.1.

4-Nitrophenylalkaline phosphatase inhibition in muscular dystrophy.

The allosteric behaviour of 4-nitrophenylphosphatase from membrane erythrocytes was investigated in Duchenne muscular dystrophy (DMD) patients, in female carriers and in healthy controls. Cooperative type kinetics with a Hill coefficient of -2.19, -1.

Action of a serine proteinase from fish skeletal muscle on myofibrils.

The action of a serine proteinase from fish skeletal muscle on myofibrils was studied. The enzyme was able to destroy the structural integrity of myofibrils, and to degrade both their major contractile and cytoskeletal constituent proteins. Proteolysis could be completely prevented by the addition of a trypsin inhibitor isolated from the same muscle.

Isolation and characterization of Pediococcus halophilus from salted anchovies (Engraulis anchoita).

The presence of bacteria in salted anchovies during and at the end of the curing process was investigated. Attempts to isolate bacteria under aerobic or anaerobic conditions led to the isolation of only bacteria of the genus Pediococcus which were identified as Pediococcus halophilus. The isolates correspond to a rather heterogeneous group in which some of the members differ in some biochemical tests from the types described in the literature.