Testing for seasonality in reported crime data

In spite of the apparent importance of crime statistics to policy-makers and the public, these data are not often analyzed or refined in the same manner as other social series such as unemployment. In this paper, seasonal variation in FBI index crimes is investigated for a major urban area. Using Miami data for 1949–1970, a test for seasonality is developed and seasonal indices are constructed for a number of crime types. A definite seasonal pattern in Miami crime data is found to exist, although its importance seems to be declining in recent years. Some applications of seasonally adjusted data to public information and operations are also briefly discussed.     

Simultaneous identification and determination of species origin, ABH antigens and isoenzyme markers in the same bloodstain

A reliable procedure for the simultaneous identification of blood, determination of species origin and ABH antigens, and typing of isoenzyme markers from a sample of three 1-cm threads is described. Results obtained from known control as well as from casework bloodstains using this procedure were consistent with those obtained in parallel, conventional, individual tests under blind trial conditions.     

Establishing the rDNA IGS structure of Cannabis sativa

The rDNA intergenic spacer (IGS) structure of Cannabis sativa was established and can be used for classification and identification of this species. In this study, DNA fragments of rDNA IGS were amplified by PCR from Cannabis sativa plant extracts and a 1387 bp fragment was obtained. DNA sequence analysis revealed six different repeat motifs. In the middle of the IGS sequence, there were three sequence motifs, and the same three sections of DNA were then repeated with minor variation in sequence. The terminal region of the IGS was composed of another three different repeat units; multiple copies of these terminal repeat motifs were present in no discernible order. Within six repeat motifs, point variations were observed in five. The DNA sequence of the locus was compared with all the plant sequences registered in GenBank by the Fasta program of GCG software with the result that this DNA fragment was significantly different from any other DNA sequence recorded to date. The most similar sequence was that of Hops (Humulus lupulus), but with a similarity of only 88.9% over 579 bp. These specific and complex variations of IGS may be related to the species and geographic distributions.     

Specificity of sibship determination using the ABI Identifiler multiplex system

Fifty known siblings and fifty unrelated pairs were genotyped using the ABI Identifiler STR system and sibship indices computed for each pair. Combined sibship indices (CSIs) for the known siblings ranged from less than 10 to greater than 1 billion. CSIs for the unrelated pairs ranged from 4.5 x 10(-8) to 0.12. In the known sibling group the percentage of loci where both alleles matched was approximately 40%, while the percentage of loci where neither matched was approximately 10%. In the non-sibling group, the percentage of loci where both alleles matched was approximately 6%, while the percentage of loci where neither matched was approximately 45%. Interestingly, the percentage of loci where a single allele matched was the same in both the known siblings and unrelated pairs, approximately 50%.     

An EMTALA primer: the impact of changes in the emergency medicine landscape on EMTALA compliance and enforcement

Tiana Lee's article provides an overview and update on the latest in the Emergency Medical Treatment and Active Labor Act (EMTALA). Reviewing the history of the statute, explaining some of the relevant regulations, and exploring government enforcements efforts to date, Ms. Lee highlights the benefits and drawbacks of the statute and recommends ways to ameliorate EMTALA's weaknesses.