Urticaria, exanthems, and other benign dermatologic reactions to smallpox vaccination in adults.

A phase 1 smallpox vaccine trial involving 350 adult volunteers was conducted. Of these subjects, 250 were naive to vaccinia virus vaccine (i.e.

Pr:YLF, intracavity-pumped, room-temperature upconversion laser.

Cw room-temperature upconversion laser operation is reported in Pr:YLF at 640 and 607 nm. An intracavitypumping scheme that uses a Yb:YAG laser operating at 1030 nm to pump the weak (3)H(4) ? (1)G(4) ground-state transition of Pr:YLF is used to populate the intermediate metastable level. An excited-state absorption at 867 nm is then used to populate the (3)P(0) and (3)P(1) upper states.

Photoconductively controlled electro-optic laser modulation.

We propose new configurations of electro-optic modulators that are controlled by photoconductive switches. Photoconductive switching speed and the use of optical feedback combine to provide the potential for flexible intracavity and extracavity modulation of low- and high-power beams at multigigahertz rates. Experimental results are presented in which a modulator of this type is used to Q switch and cavity dump a Nd:YAG laser, utilizing only a single external trigger.

Staff nurses' attitudes toward nursing research: a descriptive survey.

Staff nurse involvement in clinical nursing research is dependent on the attitudes nurses hold toward research. An exploration of these attitudes was undertaken in a 464-bed midwestern teaching hospital as it developed its nursing research procedures. A questionnaire was developed which incorporated the Boothe Attitudes on Nursing Research Scale.