Abstract: Viscoelastic measurements of sublingual saliva thinning minimums are employed reliably to determine the approach of ovulation in females and other related hormonal and rheological functions.

Abstract: This disclosure is concerned with problems of energy conservation and more effective utilization at desired critical times only in, for example, sonar-triggered underwater elapsed time strobe photography of objects or scenes or in applications having similar problems; accomplishing such and other ends by restricting optical and sonar monitoring to relatively low periodicity intervals until the desired object has come within range, whereupon the apparatus automatically changes mode to take rapid successive strobe photographs or other records supplemented by contemporaneous sonar recording.

Abstract: A process is disclosed for enhancing the speed of both certain black and white and color films, through initial black-and-white development, and redevelopment with color coupling developers and color coupling dye units, and replacement of silver units with multiple color dye units for each silver unit that provide a color image enhanced over that provided by the silver image.

Abstract: This disclosure is concerned with employing substantially orthogonal transducer arrays with substantially complementary fan-shaped beams for pin-pointing underwater objects and the like.

Abstract: This disclosure is concerned with using different types of energy to probe for objects in media (such as water) in which one of the different types (such as acoustic energy) is more facilely propagated than another (such as light), so as to enable said one type of energy to monitor for objects of predetermined characteristics within range of another type of energy propagation and, upon detection of such, to direct the other type of energy to indicate such objects, and enable correlation of the indications of the same by both types of energy.