The possibility for determining haptoglobin phenotypes in blood stains after treatment with a luminol solution

The paper gives the results of tests for influence of luminol solution of different composition on detectability of haptoglobin fractions in the bloodstains of different ages. It was stated that alkaline luminol solutions reduce intensity of fractions and may hamper Hp phenotype determination especially in old stains.     

Diseases associated with asbestos exposure. Diagnostic perspectives in forensic pathology

Asbestos, a fibrous mineral, has unique physical and chemical properties, including resistance to heat, acids, and other chemicals; flexibility; and great tensile strength. The fibers subdivide into unit fibrils of molecular dimensions, resulting in a vast mineral surface area which has a direct bearing on its unusual features and its numerous applications. Its biological effects, which include fibrogenesis and carcinogenesis, may be related to the cellular reaction, to its large specific surface, or to the size and shape of the fibers. Its oncogenic action may be multiplied by other carcinogens, principally cigarette smoking. There is clinical, pathologic, and epidemiologic evidence that exposure to asbestos, following a long latent period, constitutes an important health hazard. Direct occupational exposure, followed by a long lapsed period after the initial exposure, is associated with pleural plaques and pleural effusion, pulmonary parenchymal fibrosis (asbestosis), pulmonary carcinoma, pleural and peritoneal mesothelioma, and other neoplasms. Indirect exposure may also entail an increased risk of lung disease or mesothelioma or both. Medicolegal investigation of suspected cases includes a lifetime occupational history, clinical history including smoking habits, radiological findings, clinical evidence of asbestosis, and may require detection of asbestos tissue burden.     

Misidentification of self and the Riel Phenomenon.

Misidentification syndromes or phenomena are found in a number of psychiatric situations that may become the subject of forensic science review. One of the most curious is misidentification of self in which the individual perceives himself or herself as another being while able to explain the loss of the original identity. Recognizing these phenomena may be helpful in accurate diagnosis, in considering such conditions as psychosis of whatever type, multiple personality disorder, and other amnesia and fugue states, and in understanding the person's psychopathology. Two cases are presented to illustrate a process that the authors have named the Riel Phenomenon, after the person who was a party to what is often recognized as the most famous case in Canadian history.     

Early epidermal changes in heat- and electrically injured pig skin. I. A light microscopic study

In order to find methods applicable for disclosing electrical torture, pig skin was exposed to heat and electricity under controlled circumstances. Biopsies were obtained immediately after exposure and the morphology of the heat lesions was compared to that of electrical lesions. The cytoplasm of epidermal cells in heat lesions appeared granular or fibrillar, while the nuclei were rather unaffected. In electrical lesions the cytoplasm appeared homogeneous often with a peculiar white colour in hematoxylin-eosin stained sections. The nuclei were either dark and shadowy or enlarged and vesicular. The keratin in electrical lesions often showed a bright yellow colour. Small defects in the epidermis were seen in some electrical lesions. Thus the morphology of electrical lesions differed markedly from that of heat lesions. Although some of these differences may be due to differences in distribution and intensity of energy, it is probable that pH shifts in the cells due to electrolysis is the main cause of the specific morphology of electrical lesions.     

SELF-CONCEPT, NEGATIVE FAMILY AFFECT, AND DELINQUENCY: A Comparison Across Mexican Social Classes

Using a semistructured measure to minimize cross-cultural biases, we examined the relationship between negative self and family-other affect and delinquency among 135 Mexican families of varying social class. The results indicated that: (a) both processed and released delinquent youths and their parents evaluated themselves more negatively than nondelinquent youths and their parents; (b) appraisals in the families of processed and released delinquents did not differ appreciably; (c) migrant families tended to manifest the most negativity and lower-class families the least, with middle-class families in between; and (d) socioeconomic status did not predict the relationship between family hostility and delinquency. The results are seen as providing more support for the family control theory of delinquency than for processing-labeling theory.