Glaucomatous cupping of the optic disk by ultrasonography

B-scan ultrasonography was used to evaluate advance glaucomatous cupping of the optic disk (0.7 cup/disk ratio or greater) in one normal subject and six patients with glaucoma. The normal eye emitted a continuous echo from the posterior pole, which conformed to its mild degree of concavity. The glaucomatous eyes emitted echos from the posterior pole, demonstrating the more extreme concavity of the optic cup. Ultrasonographic evaluation of an acrylic plate containing holes of known diameter demonstrated the limits of resolution and artifacts that resulted from this examination.     

Radar remote monitoring of vital signs

Medical technology has improved remarkably over the past few generations, becoming more sophisticated and less invasive as the years progress. Until recently, however, completely noncontact health monitors have existed only in the realm of science fiction alongside flying cars and other promised technological marvels. Perhaps the best known example is the medical tricorder, used to collect medical information in the popular science fiction television series Star Trek. Now, with microwave Doppler radar phase modulation, noncontact respiration and heartbeat monitoring offers an attractive alternative to commonly prescribed cheststrap monitors.     

The Critical Temperature and Reproducibility of Al/Au Bilayer Thermometers Fabricated with Different Al/Au Thickness Ratios by Vacuum Evaporation Techniques

We present further results from a study of Al/Au bilayer thermometers constructed for third sound detection. Here we report the transition temperature of such thermometers as a function of the Al/Au thickness ratio. We also report on the reproducibility of fabrication.     

The impact of emotionality and self-disclosure on online dating versus traditional dating

Online dating is unique in the pursuit of romance. The bond created between potential partners takes a different path than normal dating relationships. Online dating usually begins with a flurry of e-mail messages, each more intimate than the last. Traditional dating relationships that might take months to develop in the real world, take weeks or even days online. Much has been written about cyber-dating, but little research has been done. This series of four studies examines the online dating process, similarities and differences between online and traditional dating, and the impact of emotionality and self-disclosure on first (e-mail) impressions of a potential partner. Results indicate that the amount of emotionality and self-disclosure affected a person’s perception of a potential partner. An e-mail with strong emotional words (e.g., excited, wonderful) led to more positive impressions than an e-mail with fewer strong emotional words (e.g., happy, fine) and resulted in nearly three out of four subjects selecting the e-mailer with strong emotional words for the fictitious dater of the opposite sex. Results for self-disclosure e-mails were complex, but indicate that levels of self-disclosure led to different impressions. Low levels of self-disclosure were generally preferred in choosing for the fictitious dater, although these preferences differed by gender, education, and ethnic background. Results were discussed in terms of theories of computer-mediated communication.