Process for the preparation of an alpha-, omega-disubstituted alkane by reacting a vinyl compound such as ethylene with a chlorine, bromine, or cyanide ion in the presence of an inorganic symmetrical per oxygen compound and a metallic ion of Ni.sup..sup.+2, Co.sup..sup.+2, Mn.sup..sup.+2, Tb.sup..sup.+3, Nd.sup..sup.+3, Pr.sup..sup.+3, Fe.sup..sup.+2, Cu.sup..sup.+2, or Tl.sup..sup.+1.

A demodulator for signals representing the angular position .theta. of a rotor in a synchro or resolver generates a corrected reference signal phase offset from the signal energizing the rotor winding by the amount of inherent phase shift .phi. occurring during signal transfer between the rotor and stator windings. The corrected reference signal is compared with a stator derived signal, produced by subtracting, adding, and 90.degree. phase shifting signals from the stator windings, to produce a …

The total synthesis of acronycine and related compounds from readily available starting materials is described, as are various classes of intermediates useful in the synthesis.

Apparatus and structures for facilitating the loading and unloading of parked aircraft at an airport are disclosed. The structures include a radial shaped air terminal building having upper and lower above ground concourse levels, and an intermediate main passenger receiving and check-in level and a plurality of subterranean levels. Each of the concourse levels includes passenger concourses with appropriate passageway gates interconnecting the passenger concourses with the exterior of the buildi…

Method for the production of asialoganglioside related compounds of the formula (I). ##STR1## wherein R.sup.1 is hydrogen or benzoyl, R.sup.2 is hydrogen or acetyl, R.sup.3 is hydrogen, acetyl, .beta.-D-galactopyranosyl or 2,3,4,6-tetra-O-acetyl-.beta.-D-galactopyranosyl, R.sup.7 and R.sup.8 are individually alkyl having 1 to 30 carbon atoms and Ac is acetyl.

A plasma-polymerized film covers a surface of a medium related member which constructs or is disposed in a casing in which a tape or disk-shaped recording medium is receiving for travel or rotating motion. The film contains C, F and at least one element of Si, B, P and N. The total content of F and at least one element of Si, B, P, and N ranges from 5 to 40 atom % of the film, and the atomic ratio of (Si+B+P+N)/F ranges from 2/10 to 5/1.

Nucleic acids and peptides are provided which can be used for detecting the status of functional T-lymphocytes as to stimulation and the time of stimulation. The nucleic acids and peptides may be provided by cloning and expression using recombinant techniques. These diagnoses may be used to determine whether T-cells are functional and the degree to which a T-cell population has been stimulated.

A musical instrument produces electrical impulses corresponding to musical tones. The harmonic components of the impulses are segregated into two electrical channels so that, for example, low order harmonics exist in one electrical channel and high order harmonics exist in another channel. A device operating in conjunction with the electrical channel for the low order harmonics adds pulsato in that channel that is more intense than the pulsato, if any, that is added in the other channel. By grou…

The present adamantanecarboxylic acid derivatives of amino acids possess antibiotic activity against a variety of organisms. Thus, they are antibacterial, antiprotozoal, and antialgal agents. The compounds are prepared by the reaction of an adamantanecarbonyl halide, preferably the chloride, with an appropriate amino acid, dipeptide, or polypeptide.

A demodulator for signals angularly related to the position of a rotor of a synchro or resolver uses, in one embodiment, only one transformer in a circuit for subtracting, adding, and phase shifting the signals to produce a single signal phase shifted in proportion to the rotor angle. In another embodiment, a transformerless circuit uses an operational amplifier to derive the phase shifted signal. The phase shifted signal is compared with a reference signal to produce a rectangular wave with a v…