摘要:
The present invention provides a polymer complex of a sugar response type having boronic acid groups in the polymer. Medicines may be contained or linked, preferably, the medicines have hydroxy groups. The polymer having boronic acid groups and the medicine having hydroxy groups may be linked by boronic acid ester bonds. The complex may also comprises polymers having boronic acid groups and polymers having hydroxy groups, and these polymers may be cross-linked.
摘要:
The present invention provides a polymer-combined drug having directional characteristics to digestive organs, wherein it comprises a medicine combined with a polymer which has an alkyleneoxy group as a repeating unit. The polymer-combined drug is produced by reacting a polyoxyalkylene glycol having one or more terminal functional groups and a medicine, if necessary in a solvent, and if necessary in the presence of a catalyst. It is able to administer the drug orally or by intravenous injection so as to maintain the concentration in blood stably for a long time, and to absorb or take in digestive organs such as the stomach and intestines directly.
摘要:
A novel and useful phospholipid derivative to be used for a reactive vesicle-forming agent, which is represented by the following general formula (1): ##STR1## in which R.sup.1 C(.dbd.O) and R.sup.2 C(.dbd.O) represent each an aliphatic acyl group, R.sup.3 denotes hydrogen atom or methyl group, OA represents an oxyalkylene group of 2-4 carbon atoms, n indicates the average addition mole number of added oxyalkylene group and is 1-1,000, p is 0 or 1, X represents ##STR2## with q and r being each an integer of 0 to 4 or 1 to 4, respectively, and M denotes hydrogen atom or an alkali metal atom.
摘要:
A reactive vesicle comprising, as a vesicle-forming component, a reactive phospholipid derivative represented by the following general formula (1) and a functional substance-fixed vesicle prepared by reacting the reactive vesicle with a functional substance: ##STR1## in which R.sup.1 C(.dbd.O) and R.sup.2 C(.dbd.O) each represent an aliphatic acyl group, R.sup.3 denotes hydrogen atom or methyl group, OA represents an oxyalkylene group of 2-4 carbon atoms, n indicates the average number of moles of added oxyalkylene group and is 1-1,000, p is 0 or 1, X represents ##STR2## with q and r each being an integer of 0 to 4 or 1 to 4, respectively, and M denotes hydrogen atom or an alkli metal atom.
摘要:
An apparatus and method corrects for zero ampere level current fluctuations in a current signal. First and second acquisition circuitry generate respective current and voltage data samples of the current signal. Current fluctuation data samples representative of zero ampere level deviations of the current signal are extracted corresponding to Off-periods of the current signal. The current fluctuation data samples of the Off-periods are interpolated to generate current fluctuation data samples representative of zero ampere level deviations of the On-periods of the current signal. The Off-period and On-period current fluctuation data samples are subtracted from the current data samples of the current signal to generate corrected zero ampere level current data samples.
摘要:
A first prepolymer contains a structural unit represented by the formula ##STR1## where m denotes a positive number of from 2 to 20 with a polymerization degree of 2 to 1000. A second prepolymer contains a structural unit represented by the formula ##STR2## where X denotes a hydrogen atom or a halogen atom, m.sup.1 and m.sup.2 denote positive numbers of from 2 to 20 and n.sup.1 +n.sup.2 denote positive numbers of from 2 to 1000, with n.sup.1 and n.sup.2 being not equal to 0, the prepolymer having a polymerization degree of 2 to 1000. An optical material with a high refractive index is obtained by polymerizing and curing a polymerizable composition containing the first or second prepolymer.
摘要:
An adaptive differential pulse code modulation system includes an adaptive quantizer and an adaptive predictor which have a coding characteristic optimized to a voice signal, and a quantizer and a predictor which have a coding characteristic optimized to a voice band MODEM signal. This system is normally used as a coding system optimized to the voice signal, and when this system detects a MODEM training signal, it becomes a coding system optimized to the MODEM signal.
摘要:
An apparatus and method corrects for zero ampere level current fluctuations in a current signal. First and second acquisition circuitry generate respective current and voltage data samples of the current signal. Current fluctuation data samples representative of zero ampere level deviations of the current signal are extracted corresponding to Off-periods of the current signal. The current fluctuation data samples of the Off-periods are interpolated to generate current fluctuation data samples representative of zero ampere level deviations of the On-periods of the current signal. The Off-period and On-period current fluctuation data samples are subtracted from the current data samples of the current signal to generate corrected zero ampere level current data samples.