Fluorescence of a Natural Fluorophore as a Key to Improve Fingerprint Contrast Image

The optical and morphological properties of resveratrol were investigated. This nontoxic fluorescent natural material, emitting in the visible blue light, was used as an optical marker, enabling the enhancement of the image contrast coming from relief pictures marked on challenging surfaces. By applying appropriated imaging softwares, this marker was verified to be very useful in the latent fingerprint recognition deposited on different wood surface types, mainly those with high level of roughness, where conventional forensic materials do not allow effective fingerprint image visualization.     

Dangerousness of the delusional misidentification of children.

Misidentification syndromes have been studied from a variety of perspectives, including phenomenological, biological, and nosological approaches. More recently, misidentification syndromes have been studied from a psychiatric-legal perspective, especially with regards to the problem of dangerousness. Capgras syndrome and other syndromes of misidentification can lead to hostile mood and subsequent physical violence. Little attention has so far been devoted to children as the objects of the psychotic person's misidentification delusion(s). We provide a review of cases from the anglophonic literature that have children as the misidentified objects, add three new cases, and then discuss the relationship between misidentification and potential harm to these children.     

On the waves: a new kind of surf in Rio de Janeiro

Surfmen are thus called young daredevils who climb to the roof of suburban trains in Rio de Janeiro, Brazil and vie with each other in agility and prowess, some of them often falling on the railway tracks and being killed. The practice started as a need to hang on anything outside the crowded train and became a sport of sorts. Even though repressed by the railway authorities and punished by fines and imprisonment, the practice has been going on since the eighties and developed into a competition with rules, code of honour, grading of achievement. It became a means of improving self-esteem as well as securing leadership and social prestige by people who otherwise carry on lives devoid of any charm or ludic stimulus. A substitute behavior, it results from processes of cultural elaboration at work in the youth culture of our cities.     

“Comorbidity” of behavioral, emotional, and cognitive problems in adolescence

The purpose of this study was to examine in a sample of 11,516 secondary school students the extent to which different behavioral, emotional and cognitive problems (a) reflected one or more underlying common factors; (b) actually cooccurred; and (c) were single problems. Principal Component Analyses were performed and percentagewise techniques were used. PCA demonstrated that one or more general syndromes could not by far account for all of the variance of the variables. The results suggest the existence of adolescent subgroups with divergent comorbidity patterns: those who primarily report one single symptom; those who report concurrent symptoms either exclusively in the category of behavioral problems or exclusively in the category of emotional and cognitive problems; and those who report concurrent symptoms in both categories. This distinction between different subgroups has important theoretical, diagnostic, and treatment implications.     

Reviews

The Possessed and the Dispossessed: Spirits, Identity and Power in a Madagascar Migrant Town by Lesley A. Sharp.

University of California Press, Berkeley and London. 1993. xx plus 345 pp. including maps, illustrations, tables, notes, bibliography and index.

Marketing Africa's High Value Foods edited by S. Jaffee and J. Morton. World Bank, Kendall/Hunt Publishing Company, Iowa. 1995. 503 pp. including bibliography and index.

Democratisation and Demilitarisation in Lesotho: The General Election of 1993 and its Aftermath edited by Roger Southall and Tsoeu Petlane. Africa Institute of South Africa, Pretoria. 1995. xvii plus 193 pp. R60 ($30).

A Culture of Censorship: Secrecy and Intellectual Repression in South Africa by Christopher Merrett.

David Philip, Cape Town; University of Natal Press, Pietermaritzburg and Mercer University Press, Macon (Georgia). 1994. xv plus 296 pp. including notes and index. Paperback. Price R54,95.

The Eritrean Question: The Conflict Between the Right of Self‐Deter‐mination and the Interests of States by Eyassu Gayim.

Iustus Förlag AB, Uppsala (Sweden). 1993. 716 pp. including figures, tables, notes, maps, annexures bibliography and index. Paperback.

The Rwanda Crisis 1959–1994 — History of a Genocide by G. Prunier. Hurst & Co. London. 1995. xiii plus 389 pp. Paperback. Price £12.50.

Entrance into Reproductive Life: A Demographic Expression of Socio‐Economic Changes in a Senegalese Rural Area by Valérie Delaunay. Centre Français sur la Population et le Développement (CEPED), Paris. 1994. Les Etudes du CEPED No 7. xxii plus 326 pp. including figures, maps, tables, appendices and bibliography. Paperback. Price 90FF.

Verso un Nuovo Sudafrica: Dall'Apartheid allo Stato Multietnico by Chiara Robertazzi.

Milan: Francoangeli. 1995. 130 pp. Paperback.