OBJECTIVE To assess the geographic distribution and trends of AIDS deaths for the 1988-1997 period in Mexico. MATERIAL AND METHODS Crude and adjusted mortality rates were estimated for the 1988-1997 period. A trend test was performed using the simple linear regression method. Standardized mortality ratios (SMR) and years of potential life lost (YPLL) were calculated for each Mexican state. ...

Expert system explanation is the study of how to give an expert system the ability to provide an explanation of its actions and conclusions to a variety of users (including the domain expert, knowledge engineer, and end user). The 1988 AAAI Workshop on Explanation brought together many of the world’s experts on expert system explanation in an attempt to highlight key research areas and question...

PROBLEM/CONDITION CDC monitors the incidence of mumps in the United States through the passive reporting of cases to its National Notifiable Disease Surveillance System (NNDSS). REPORTING PERIOD COVERED 1988-1993. DESCRIPTION OF SYSTEM Weekly reports to the NNDSS from 48 states and the District of Columbia were used to calculate incidence rates for mumps. State immunization requirements wer...

Expenditures for public social welfare programs in 1988 totaled $885.8 billion, an increase of 6.3 percent over the previous year. That amount was 18.5 percent of the Nation’s output of goods and services, as measured by the gross national product (GNP). The 1988 figures are consistent with the pattern established for such spending in the early 1980’s. The average annual growth rate from 1982 t...

In 1964, the first Surgeon General's report on smoking focused on the health hazards associated with cigarette smoking. From 1965 through 1987, the overall prevalence of cigarette smoking among adults in the United States declined by approximately 0.5 percentage points per year. To determine the prevalence of smoking among adults in the United States in 1988, the Occupational Health Supplement ...

nloaded kground: Hepatocellular carcinoma (HCC) represents a significant health disparity affecting Asian icans, a population comprised of distinct ethnic groups. The purpose of this article is to analyze rnians of Asian ancestry with HCC with respect to socioeconomic status, demographic factors, stage ase, treatment received, and survival. thods: To investigate ethnic differences in survival, ...

This paper answers a question posed by Nils Nilsson in his paper [9] on Probabilistic Logic: When is the maximum entropy solution to the entailment problem equal to the solution obtained by the projection method? Conditions are given for the relevant matrices and vectors which can be tested without actually computing the two solutions and comparing them. Examples are discussed and some comments...

Liver transplantation is one of the most spectacular of surgical achievements. It is a demanding and expensive procedure, requiring great surgical skill and a great depth of supporting services. Precisely because it is a procedure at the leading edge of medicine, more and more units in developed countries are pressing to be allowed to carry it out. But there are many moral and ethical problems,...

A novel parvovirus was discovered recently in the brain of a harbor seal (Phoca vitulina) with chronic meningo-encephalitis. Phylogenetic analysis of this virus indicated that it belongs to the genus Erythroparvovirus, to which also human parvovirus B19 belongs. In the present study, the prevalence, genetic diversity and clinical relevance of seal parvovirus (SePV) infections was evaluated in b...