This paper reports the study of drug consumption carried out within the population of undergraduate students from 2 colleges of Alfenas, in the state of Minas Gerais state. Both licit and illicit drugs were studied, including alcohol, tobacco, marijuana, cocaine, heroin, crack, inhalants, glue, tranquilizers, stimulants, and others.METHODOLOGY: The research included a wide bibliographical search and the application of a questionnaire to approximately 23% of the students (total of 6500 students).RESULTS: A total of 1500 students participated in this investigation. The results demonstrated that there was a significant consumption of both licit and illicit drugs. The pattern of drug consumption in the research sample was similar to other investigations conducted in Brazil and in other countries.DISCUSSION: It was observed that 55% of the university students use drugs. However, the most surprising finding was that most of the students (88%) answered "yes" to the inquiry, "Have you already tried any type of drug, including alcohol and cigarettes?" The students revealed that they had taken drugs even prior to the admission to the university. The results suggest clearly that the university environment does not necessarily represent the starting point for student drug consumption. DESCRIPTORS: Drugs. Toxics. University. Students. Youth.During the past few years, the consumption of illicit drugs has been increasing considerably among the young Brazilian population. The precocious relationship between drugs and the consumer can be found in several papers in the literature. Among the several factors that account for the growth of distribution and consumption of drugs in this country include the psychosocial factors of youth that are related to the search for freedom and fast, easy pleasure [1][2][3][4][5][6][7] . The individuals involved with the sale and distribution of drugs seek high school and undergraduate students. Studies were performed concerning the influence of gender and age regarding the consumption of drugs in Brazil; the authors verified that the male population had greater preference for non-prescription drugs, whereas female users tended to prefer psychotropic medications. With regard to the correlation between cigarette use and alcohol abuse, the authors found greater consumption in the male population, with the consumption of alcohol being more frequent than tobacco use 6,7 . It was also observed that of 63 people hospitalized for drug abuse, 86% were male, with ages ranging from 12 to 25 years. Except for tobacco and alcohol, marijuana was reported by 66% of the interviewees as the first psychoactive drug used, serving as the starting point for the use of other drugs 7 . In São Paulo, the incidence of alcoholism is 8 times greater in adult men, but it has grown faster among the women 2,3 . Among the main effects caused by drugs such as cocaine, marijuana, LSD, ecstasy, mushrooms, glues, and amphetamines are mydriasis, euphoria and a sensation of well being, hallucinations, delirium, excitement, anguish, ...

6 a 10 16 microrganismos/ml. De cada suspensão recém-preparada foi retirado 1 ml e adicionado a 99 ml de água destilada estéril (com ou sem prévia ozonização), em um reator de cristal. Foram preparadas diluições seriadas (1/10) das suspensões testadas e inoculado 0,1 ml de cada suspensão em Tryptic Soy Agar, incubadas a 37ºC por 24 h, quando então se procedeu à contagem das UFC. Os resultados obtidos mostraram que o tempo máximo para a inativação total das bactérias tratadas com água previamente ozonizada (0,6 mg/ml) foi de 5'25" e, para a água não previamente ozonizada, foi de 23'45", indicando um efeito antibacteriano mais rápido da água previamente ozonizada, frente ao S. aureus.

Avaliação físico-química de filés de tilápia (Oreochromis niloticus) submetidos à sanitização Physical-chemical evaluation of "tilápia" (Oreochromis niloticus) fillets submitted to sanitization IntroduçãoPescados apresentam condições intrínsecas que propiciam a multiplicação microbiana, podendo reduzir a vida útil do produto, que passará a representar risco à saúde pública. A elevada atividade de água, a composição química, o teor de gorduras insaturadas facilmente oxidáveis e o pH próximo da neutralidade da carne de peixe são os fatores determinantes no crescimento microbiano.Os lipídios de pescado contêm quantidades elevadas de ácidos graxos insaturados, que são suscetíveis à oxidação ( ANKADE, 1989). Essas reações de oxidação ocorrem por formação de radicais livres e se caracterizam por um período de indução, seguido por uma absorção acelerada de oxigênio, e terminam com a produção de peróxidos, odor, ranço e outros produtos de polimerização (BOBBIO; BOBBIO, 1992). A velo- AbstractThe present research had as objectives to study the effects of chlorinated water (sodium dichloroisocyanurate -3 to 3.5 mg.L -1 ) (T1); chlorinated water associated to ultrasound (T2); ozonated water (3 to 3.5 mg.L -1 ) (T3); ozonated water associated to ultrasound (T4), and control (T5) on the centesimal composition, fatty acid profile, cholesterol content and peroxide value in "tilápia" fillets. The fillets were treated by immersion in the solutions, at pH 6.0, 5 °C, for 20 minutes. The treatments affected the centesimal composition. Sanitizers caused a loss of water and increased the concentration of protein in the fillets, more strongly in T3 (77.16% moisture and 19.73% protein), when compared to T5 (78.60% moisture and 18.71% protein). Significant differences were observed for saturated fatty acids (SFA), monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA). SFA presented differences in T3, T4 and T5, with the respective averages of 37, 33.50 and 36.30%. T1 and T2 (34.90 and 34.80%) did not present differences, but were different from T3, T4 and T5 (39.30, 36.30 and 39.10%) for MUFA. T3 preserved more fractions of MUFA. PUFA did not differ in T1 and T2 (23 and 22.50%) and T3, T4 and T5 (18.30, 20.40 and 17.70%) differed from eachother, with T1 presenting the highest averages. There was a marked reduction in the level of cholesterol in T2 (43.94 mg.100 g -1 ), when compared to T5 (54.77 mg.100 g -1 ). There was no statistical difference in peroxide level among the treatments.

We report the morphological, biochemical and molecular characteristics of a trypanosomatid isolated from the flower of Cucurbita moschata. Although the trypanosomatid was isolated from a plant, the lack of recognition of Phytomonas-specific molecular markers based on spliced-leader and ribosomal genes as well as by monoclonal antibodies specific for Phytomonas argues against assigning it to this genus. Because the isolate displayed typical opisthomastigote forms in culture, it is assigned to the genus Herpetomonas. Analysis of randomly amplified polymorphic DNA (RAPD) patterns and characterization of ribosomal SSU and ITS markers suggest that it is more closely related to H. samuelpessoai than to any other species. However, the presence of spined flagellates in culture (displaying lateral expansions of the plasma membrane originating near the flagellar pocket) and isolate-specific RAPD fingerprints argue strongly that the trypanosomatid belongs to a new subspecies, for which the name Herpetomonas samuelpessoai camargoi n. subsp. is proposed.

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