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Biomedical subjects

J M Orient

Publications and source records attributed to J M Orient.

At least 19 recordsLinked to original sources

Efficacy of bomb shelters: with lessons from the Hamburg firestorm.

Shelters for protection against the effects of nuclear weapons are often stated to be useless, largely because of firestorms. Recent models purport to show that nuclear weapons are more likely to cause firestorms than previously thought. These controversial models are based on uncertain assumptions, which are difficult or impossible to test. Regardless of the predictive validity of fire models, conclusions about the ability of shelters to protect their occupants against firestorms, if they occur, are based primarily on historical experience. A review of the original data from the Hamburg firestorm shows that almost all persons in adequate shelters survived, contradicting a currently prevailing belief that all died. The results of the strategic bombing during World War II and of nuclear weapons tests show that a considerable level of population protection can be achieved through attention to proper shelter design.

Burns↗

Assessing the risk of occupational acquisition of the human immunodeficiency virus: implications for hospital policy.

In determining infection control policy, it is essential to quantitatively assess the risk of transmission of human immunodeficiency virus (HIV) to health care workers and their families. The risk should be placed in perspective by comparing it with other occupational hazards. The risk of seroconversion from a needlestick injury can be calculated from the probability of a needlestick occurrence, the probability that the source patient is infected, and the probability of seroconversion, given an exposure. The risk of seroconversion due to drawing 1000 blood specimens from seropositive patients is between 86 and 470 in 100,000. The risk to surgeons from performing 25 operations on infected patients is approximately 272 in 100,000. The risk of fatal injury in the course of one year's work on a Louisiana oil rig is between 188 and 283 per 100,000.

Acquired Immunodeficiency Syndrome↗

Chemical and biological warfare. Should defenses be researched and deployed?

The threat of chemical and biological weapons of mass destruction has intensified because of improved delivery systems and advances in chemistry, genetics, and other sciences. Possible US responses to this threat include deterrence, defenses, and/or disarmament, including a reaffirmation of the Biological and Toxin Weapons Convention of 1972, which is now in jeopardy. This article discusses the history of chemical and biological warfare, existing and potential weapons, the proliferation of weapons and delivery systems, ways to prevent the use of these weapons, and ways to protect populations from their effects.

Biological Warfare↗

Civil defense in the United States: evolution and regression.

Thirty years ago, physicians were exhorted to assume a leadership role in preparedness for national emergency, including war. At that time, a system evolved to prevent certain types of casualties (due to blast and radiation), and to meet the medical challenges that would result from disaster. In recent years the system has regressed, and physicians are often leaders of the opposition to its improvement. Funding has been cut drastically, and many programs have been all but abandoned. Because this change in philosophy could cost millions of lives, the underlying assumption that all efforts would be futile in the face of modern warfare needs to be critically reexamined.

Attitude of Health Personnel↗