Abstract: A liquid phase process for preparing GnRH peptide analogs of the formula:G-AA.sub.1 -(A)D-Phe-AA.sub.3 -AA.sub.4 -(R.sub.2)-AA.sub.5 -AA.sub.6 AA.sub.7 -AA.sub.8 -Pro-AA.sub.10 -NH.sub.2Formula 1which comprises:(a) reacting a peptide of the formula:T-(R.sub.2)AA.sub.5 -AA.sub.6 -Xwhere T is (P.sub.2)AA4 orP.sub.2 and X is AA.sub.7 --OH or is --OH, with a peptide of the formula:X'-AA.sub.8 -Pro-AA.sub.10 -NH.sub.2or acid-addition salt form thereof, where X' is AA.sub.7 when X is absent and X' selected from P-Ala, Gly, GABA, the D- and L- isomers of Ala, amino isobutyric acid, 6-amino-hexanoic acid, Ser, Thr, His, Tyr, Asn, and Gln' is absent when X is AA.sub.7 --OH;in a liquid reaction medium in the presence of a peptide coupling reagent and a strong organic amine base to obtain a product of the formula:T-(R.sub.2)AA.sub.5 -AA.sub.6 -AA.sub.7 -AA.sub.8 -Pro-AA.sub.10 -NH.sub.2(b) removing the P.sub.

Abstract: An interference detection assembly is disclosed for detecting interference generated from a plurality of signals received by a receiver having a single output signal, the interference detection assembly including a synchronous demodulator having an input line electrically connected to a receiver to receive the single output signal therefrom, the synchronous demodulator converting the single output signal to generate an intermediate frequency signal, the synchronous demodulator having a Q-channel output transmitting a phase of the single output signal out therefrom, and a pilot detector electrically connected to the Q-channel output to receive the phase of the output signal to detect interference.

Abstract: An AM-modulated carrier signal is converted to a lower carrier frequency through mixing with a square wave local oscillator signal. A field-effect transistor chops the modulated signal according to the square wave signal so that a chopped or sampled version of the modulated signal is created without passing the signal through a semiconductor junction. A filter then selects the desired mixing product. Thus, a distortion free mixing of the signal is obtained using low cost components including a JFET switch and a square wave output from a microcontroller.

Abstract: Polymerizable reaction product mixtures are prepared by the reaction of an epoxide of a long chain (1) unsaturated fatty oil or (ii) unsaturated fatty acid or ester thereof with a mixture of (a) acrylic acid or methacrylic acid, (b) a diepoxide, and (c) at least one other modifying compound. The modifying compounds contain a group that will react with the epoxidized fatty oil or with the epoxidized fatty acid or ester. The mixtures produced are useful per se and in formulations as inks or coatings that are curable by exposure to radiation or by heating.

Abstract: Addition of a small amount by weight of nitrocellulose to certain acrylate or methacrylate containing radiation curable coating compositions greatly inhibits penetration of the uncured compositions into porous substrates such as paper or paperboard.

Abstract: Acrylate ester or methacrylate ester based photocurable compositions having added thereto poly(vinyl acetate) or poly(vinyl chloride/vinyl acetate) copolymers when applied to plastic substrates and cured with ultraviolet radiation show an unexpected improved adhesion to the plastic substrate.