Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof are selective cGMP PDE inhibitors which are useful in the treatment of such diseases and adverse conditions as angina, hypertension, congestive heart failure, reduced blood vessel patency, peripheral vascular disease, stroke, bronchitis, chronic asthma, allergic asthma, allergic rhinitis, glaucoma, and diseases characterized by disorders of gut motility.

Pyrazolopyrimidinone antianginal agents

An elongated sanitary napkin has deflectable longitudinal side edges formed by an edge or peripheral seal along the opposite sides of an absorbent. A garment attachment panel is secured to the underside of each side edge. A fixed portion of the panel is bonded flat against the side edge so that a free portion of the panel, extending from the fixed portion, is directed inward and downward. During use, the panels are fastened together beneath an undergarment crotch portion by hook and loop type fastener. Fastener and panels are sized so that when fastened the panels exert a pull on the side edges, controlling their deflection and, for example, preventing them from folding in over the absorbent. The garment attachment panels confine the undergarment crotch portion under the absorbent so that, for example, an elasticized edge of the crotch portion is prevented from pulling up and onto the absorbent.

Sanitary napkin with garment attachment panels

The integrated circuit described is a function generator which, for example, is eminently suited for use in a shutter system of an automatic photographic camera. The current which is delivered by the photodiode and is a measure of the intensity of the light incident on the objective of the camera is supplied to this function generator as the input current. This current is converted, by means of a voltage which is generated in the generator and is a function of the film speed of the film used and the diaphragm stop, into an output current which is supplied to an integrating circuit. The value of the said output current and the integrating circuit then determine the exposure time.

Integrated function generator

For stabilizing a voltage stored on a memory capacitor, an electric controller has a generator providing a recurrent ramp wave form. Each time the ramp wave form voltage rises to a reference level, an oscillator is switched on to provide a series of sawtooth pulses, beginning always at a peak. The ramp wave form and the stored voltage are fed to a differential amplifier so that this has an output when ramp wave form voltage exceeds the stored voltage. The amplifier output is used to open a gate to allow part of one of the sawtooth pulses to be fed to the capacitor as a correction pulse, unless the sawtooth pulse is at zero when the gate opens. The stored voltage is thus first brought, if necessary, to a value corresponding to a zero value of the sawtooth pulse and is then stabilized at that value. The controller can operate either automatically or manually and the operation can be changed bumplessly and without balancing.

Stephen Arthur Foster

Papers

An electric controller with improved stabilizer apparatus for the storage capacitor