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1.
Neotrop Entomol ; 48(2): 323-331, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30456722

ABSTRACT

The number of Tetrastischus howardi (Olliff) females to be released and their dispersion should be known, that way, used D. saccharalis pupae as sentinel host to measure parasitism as function of the release density of the parasitoid and its location in the field. Two sets of trials were run aiming first to define the number of parasitoids to be released and the dispersal of the parasitoid using plots in sugarcane commercial fields, respectively. Pieces of sugarcane stalk holding sentinel pupae were taken to the field and exposed to parasitism in both trials. The parasitoid was released at the rate of 20, 40, 80, and 160 females per sentinel pupa, except for the control plot without releasing. The parasitism rate was calculated based on the recovered pupae after 96 h of exposure time from releasing the parasitoids. The models estimated the best parasitism rate by releasing 102 parasitoids per pupa. In the second trial, sentinel pupae were arranged in five subsequent circles corresponding 4, 8, 12, 16, and 20 m around the central parasitoid releasing point at rate of 4, 8, 12, 16, and 18 pupae per circle. The mean estimated dispersal distance was 7.64 m, with a covering area of 80.07 m2. Based on these findings, release of T. howardi is recommended in 125 points per hectare of sugarcane at rate of 102 females per pupa of the pest aiming to achieve homogeneous distribution and parasitism.


Subject(s)
Lepidoptera/parasitology , Pest Control, Biological/methods , Saccharum , Wasps/physiology , Animal Distribution , Animals , Female , Population Density , Pupa/parasitology
2.
Cad Saude Publica ; 15(2): 369-79, 1999.
Article in Portuguese | MEDLINE | ID: mdl-10409789

ABSTRACT

This study approaches the social and cultural profile concerning risk for HIV infection in women, describing some epidemiological variables and disclosing reports of risk situations, the meaning of living with AIDS, and support received. A semi-structured questionnaire was used to interview 25 women from the University Hospital of the Federal University of Rio de Janeiro, prior to the availability of multi-drug treatment. The majority reported limited schooling, were housewives or engaged in under-skilled occupations, and had family incomes lower than average for users of this public teaching hospital. The view of AIDS as "someone else's disease" was prevalent, and STDs were perceived as male infections, although several women reported episodes of STDs prior to HIV. They had received their diagnosis and initial medical care only after their partners' and/or children's illness or death. The study points to preventive strategies reinforcing these silent women's bargaining power, acting on men as potential active participants in reproductive health programs that incorporate STD/AIDS issues.


Subject(s)
Acquired Immunodeficiency Syndrome/epidemiology , Acquired Immunodeficiency Syndrome/transmission , Adult , Aged , Brazil , Educational Status , Female , Humans , Income , Middle Aged , Risk Factors , Surveys and Questionnaires
3.
Sex Health Exch ; (3): 9-13, 1998.
Article in English | MEDLINE | ID: mdl-12294690

ABSTRACT

PIP: To broaden the context of HIV/AIDS prevention interventions in an urban slum in Rio de Janeiro, Brazil, a model program was developed that involved training 12 low-income women to serve as paid community health agents. The 4-month training course covered the health education topics of reproduction, HIV/AIDS, family planning (FP), and reproductive health and was guided by the belief that women's vulnerability to HIV/AIDS is embedded in gender relations and that health education should be bolstered with promotion of individual autonomy among trainees. Trainees also conducted simple research to analyze the needs of their community and assessed and produced the health education materials they would use in the community. The HIV/AIDS intervention model developed by the women takes the form of three community meetings on 1) gender relations, 2) sexuality and HIV/AIDS prevention, and 3) AIDS. Women who attend the meetings are given cards that simplify their acceptance as FP clients at local health centers. The training empowered the 12 women and led to positive improvements in their lives. Because their community is controlled by drug dealers, the women had to overcome restrictions on their interactions with their neighbors. The training gave the women the courage to do this and to be recognized and accepted in their communities. While the paid project is completed, the women have continued offering educational sessions. Currently, the project staff is seeking funding to find ways to replicate this intervention model at a lower cost.^ieng


Subject(s)
Acquired Immunodeficiency Syndrome , Community Health Services , Community Health Workers , Education , Family Planning Services , HIV Infections , Health Education , Health Personnel , Interpersonal Relations , Poverty , Reproductive Medicine , Research , Urban Population , Americas , Brazil , Delivery of Health Care , Demography , Developing Countries , Disease , Economics , Health , Health Services , Latin America , Population , Population Characteristics , Primary Health Care , Social Class , Socioeconomic Factors , South America , Virus Diseases , Women's Rights
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