Amplitude Constrained MIMO Channels: Properties of Optimal Input Distributions and Bounds on the Capacity.

In this work, the capacity of multiple-input multiple-output channels that are subject to constraints on the support of the input is studied. The paper consists of two parts. The first part focuses on the general structure of capacity-achieving input distributions.

Cost-effective syphilis screening in military recruit applicants.

A cost-effectiveness analysis of syphilis screening was performed. Strategies included no screening, universal testing at military entrance processing stations, universal testing at basic training centers, and contracting centralized screening. Probabilities derived from data retained on recruit applicants from 1989 through 1991 (N = 1,588,143) and from the published literature were used.

Health effects of the 1991 Kuwait oil fires: a survey of US army troops.

The burning of oil wells in Kuwait in 1991 discharged a high volume of potentially toxic pollutants into the air. To determine whether there were health-related complaints associated with having lived and worked there, questionnaires were administered to 1599 soldiers after their return from a 3-month mission in Kuwait. Symptoms occurring before, during, and after the mission were queried.

The risk of birth defects among children of Persian Gulf War veterans.

Background: There has been suspicion that service in the Persian Gulf War affected the health of veterans adversely, and there have been claims of an increased rate of birth defects among the children of those veterans.

Methods: We evaluated the routinely collected data on all live births at 135 military hospitals in 1991, 1992, and 1993. The data base included up to eight diagnoses from the International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) for each birth hospitalization, plus information on the demographic characteristics and service history of the parents.