Teaching social responsibility: the Manhattan project. Commentary on "The Six Domains of Research".

This paper discusses the critical necessity of teaching students about the social and ethical responsibilities of scientists. Both a university scientist and a middle school science teacher reflect on the value of teaching the ethical issues that confront scientists. In the development of the atomic bomb in the US-led Manhattan Project, scientists faced the growing threat of atomic bombs by the Germans and Japanese and the ethical issues involved in successfully completing such a destructive weapon.

Ultrasonography of the rotator cuff: Analysis of results in a community setting.

Forty-six patients underwent ultrasonogrophy evaluation of their shoulder for suspected rotator cuff tears from 1989 to 1992. All ultrasound studies were evaluated by a radiologist (HJH) who was not subspecialty-trained in shoulder ultrasonography. All patients had surgical confirmation of the status of their tendons.

Surgical management of recurrent nasopharyngeal carcinoma after radiation failure at the primary site.

Nine patients have undergone transpalatal resection of recurrent nasopharynx cancer 10 to 56 months following a full course of external beam irradiation. Seven patients were treated for cure, and two were treated palliatively because of nasal airway obstruction, recurrent epistaxis, and severe headaches. Of the patients treated for cure, five are living free of disease 6 to 48 months (mean, 22.

The "diff-if". Use of microcomputer analysis to triage blood specimens for microscopic examination.

Increasingly, all automated blood counts are not accompanied by a microscopic white blood cell differential. A popular strategy is to obtain a manual differential if any part of the automated blood count and differential is outside specified limits (the "diff-if" strategy). The authors compared two sets of criteria to triage blood counts for manual differentials: previously recommended numeric values, and the analysis of a microcomputer program.