110 research outputs found

    Pengaruh Metode Problem Based Learning pada Materi Redoks di Kelas X SMA Negeri 1 Wori

    Full text link
    The purpose of this study, to determine whether there are differences in student learning outcomes in using the Problem Based Learning method with the lecture method. During approximately 1 month different methods were applied in 2 classes, namely the Problem Based Learning class and the Lecture class with a total of 25 students each, then to see the learning outcomes a post-test was conducted. The results showed the value of t arithmetic = 2.92> t table 2.010, so that the conclusion Ha is accepted and H0 is rejected, it means there are differences in student learning outcomes using the Problem Based Learning method with those using the lecture method on redox material

    How long-distance truck drivers and villagers in rural southeastern Tanzania think about heterosexual anal sex: a qualitative study

    Get PDF
    Objective: To explore ideas of truck drivers and villagers from rural Tanzania about heterosexual anal sex (HAS) and the associated health risks. Methods: Qualitative study using 8 in-depth interviews (IDIs) and 2 focus group discussions (FGDs) with truck drivers and 16 IDIs and 4 FGDs with villagers from the Morogoro region. Study participants included 24 women and 46 men. Data analysis was performed thematically employing standard qualitative techniques. Results: Reasons why men would practice HAS included sexual pleasure, the belief that anal sex is safer than vaginal sex, alternative sexual practice, exploration and proof of masculinity. Reasons why women would practice HAS included financial need, retaining a partner, alternative for sex during menses, pregnancy prevention and beauty enhancement because HAS is believed to ‘fatten the female buttocks’. Most participants believed that condoms are not needed during HAS. This was linked to the ideas that infections only ‘reside in wet places’ (vagina) and that the anus is not ‘conducive’ for condom use; condoms reduce ‘dryness’ and ‘friction’ (pleasure) and may ‘get stuck inside’. Conclusions: The study participants reported practices and ideas about HAS that put them at risk for HIV and sexually transmitted infections. Greater attention to education about HAS is urgently needed in Tanzania, where this sexual practice is still regarded as a taboo. This study offers useful information that could be included in sex education programmes

    Vitamin A and zinc supplementation among pregnant women to prevent placental malaria: a randomized, double-blind, placebo-controlled trial in Tanzania

    Full text link
    BACKGROUND: Malaria causes nearly 200 million clinical cases and approximately half a million deaths each year, primarily in sub-Saharan Africa.1 The risk of malaria increases during pregnancy,2 a period during which its prevention is especially important. Not only do pregnant women experience greater severity of illness compared with nonpregnant women,2 but studies have shown strong associations between prenatal malaria and maternal anemia,2 fetal loss, low birthweight, and infant mortality.2 Improving preventive measures that specifically target malaria in pregnancy is a global health priority.3 METHODS: Study design and participants. This randomized, doubleblind, placebo-controlled trial was implemented at 8 antenatal care clinics in the urban Temeke and Ilala districts of Dar es Salaam, Tanzania. The trial was registered RESULTS: A total of 2,500 screened participants were enrolled in the trial. The trial profile is shown in Figure 1. It was not possible to collect placentas from 875 participants for the following reasons: miscarriages (fetal loss before 28 weeks of gestation) (N = 234), delivery outside of Dar es Salaam or at a non-study hospital (N = 577), or withdrawal from the study (N = 34). Of the remaining 1,589 women, 1,404 placental samples were obtained (88%); histology results were available for 1,361 participants. PCR results were available for 1,158 participants, and 1,404 participants had either histology or PCR results available. CONCLUSION: This study is the first to examine the impact of vitamin A and zinc supplementation starting in early pregnancy on placental malaria. We observed that supplementation with 25 mg zinc per day from the first trimester until delivery was associated with a 36% (95% CI = 9–56%) reduced risk of histopathology-positive placental infection, but not PCRpositive infection. Vitamin A supplementation had no impact on placental malaria, but was associated with an increased risk for severe anemia

    Benzopyrene And moisture content In Wood Fish (Katsuobushi) Processed Using Conventional Smoking And Oven

    Get PDF
    Wooden fish is one type of processed fish product that has undergone a series of processes such as boiling and multilevel smoking until the texture becomes as hard as wood and dark brown-black in color. Usually, wooden fish uses skipjack tuna, but wood fish which is treated with smoke causes high levels of benzoic acid. a) pyrene in wood fish meat is high. The sample selection was taken as many as 2 pieces of wooden fish products, the samples taken would be shaved and then blended and the prepared samples would be tested including analysis of benzo(a)pyrene content and water content. The test method for benzo(a)pyrene uses HPLC and water content testing, using the Moisture Determination Balance FD-660, Analysis of benzo(a)pyrene levels and water content taken from the data of the last 4 years, trend data in research that has been carried out on levels of benzo(a) pyrene and water content, in the electric oven the highest content of benzo(a)pyrene in 2022 is 4.52 ppb and the highest water content in 2021 is 23.50% while conventional smoking has the highest benzo(a)pyrene content in 2019 of 56.6 ppb and the highest water content in 2020 by 19.40%. Testing the water content analysis of the moisture content in the oven is 22.50% and conventional smoking.is 19.40% Keywords: Wood Fish, Benzo(a)pyrene, Moisture Content, Smoking, Oven Abstrak Ikan kayu adalah salah satu jenis produk olahan ikan yang telah mengalami rangkaian proses seperti perebusan dan pengasapan bertingkat, hingga teksturnya menjadi sekeras kayu dan berwarna cokelat tua kehitaman. Biasanya olahan ikan kayu menggunakan ikan cakalang, akan tetapi ikan kayu yang diolah dengan asap menyebabkan kadar benzo(a)piren pada daging ikan kayu tinggi. Pemilihan sampel diambil sebanyak 2 potong produk ikan kayu sampel yang diambil akan diserut kemudian akan diblender dan sampel yang sudah disiapkan akan dilakukan pengujian diantaranya anilisa kadar benzo(a)piren dan kadar air. Metode pengujian benzo(a)piren menggunakan HPLC dan pengujian kadar air menggunakan alat Moisture Determination Balance FD-660, Analisa kadar benzo(a)piren dan kadar air diambil dari data 4 tahun terakhir. data trend pada penelitian yang telah dilakukan kadar benzo(a)piren dan kadar air, pada oven listrik paling tinggi kadar benzo(a)piren ditahun 2022 sebesar 4.52 ppb dan kadar air tertinggi ditahun 2021 sebesar 23.50% sedangkan pengasapan konvensional kadar benzo(a)piren paling tinggi ditahun 2019 sebesar 56.6 ppb dan kadar air tertinggi ditahun 2020 sebesar 19.40%. Pengujian analisa kadar air kadar air pada oven sebesar 22.50% dan pengasapan konvensional sebesar 19.40% Kata Kunci: Ikan Kayu, Benzo(a)piren, Kadar Air, Pengasapan, Oven

    Hubungan Antara Malaria Klinis Dengan Anemia Pada Penderita Yang Berkunjung Di Puskesmas Wori Kabupaten Minahasa Utara

    Get PDF
    Malaria remains a important public health problem in the world. Distribution of malaria depend on interaction betweenagent,host, and environment. Malaria is one of the indicators of the targeted Millennium Development Goals(MDGs) to stop the distribution of malaria. Assume of malaria case in Regency North Minahasa is 5.925 cases. Thepurpose of this study to analyze Relationship Between Clinical Malaria with Anemia in Patients Visiting Health CentersWori Regency North Minahasa. Design of this study using the cross sectional analytic study. Sample was determinedby purposive sampling. Total of sample is 50 respondent. Bivariate analysis using Chi Square, SPSS 20 version.The result showed that there is a Relationship Between Clinical Malaria with Anemia in Patients Visiting Health CentersWori Regency North Minahasa with a value of p=0.045(<0.05). Percentage of malaria with anemia 10% and percentageof malaria without anemia 0%. Percentage of negative malaria with anemia 48% and percentage of negativemalaria without anemia 42%. Conclusion : The result showed that there is a Relationship Between Clinical Malariawith Anemia in Patients Visiting Health Centers Wori Regency North Minahasa. Ha accepted and Ho rejected.Keywords: malaria, anemi

    Successful treatment of fusarium solani ecthyma gangrenosum in a patient affected by leukocyte adhesion deficiency type 1 with granulocytes transfusions

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Ecthyma gangrenosum (EG) manifests as a skin lesion affecting patients suffering extreme neutropenia and is commonly associated with <it>Pseudomonas aeruginosa </it>in immunocompromised patients. Leukocyte adhesion deficiency I (LAD I) which count among primary immunodeficiency syndromes of the innate immunity, is an autosomal recessive disorder characterized in its severe phenotype by a complete defect in CD18 expression on neutrophils, delayed cord separation, chronic skin ulcers mainly due to recurrent bacterial and fungal infections, leucocytosis with high numbers of circulating neutrophils and an accumulation of abnormally low number of neutrophils at sites of infection.</p> <p>Case Presentation</p> <p>We report at our knowledge the first case of a child affected by LAD-1, who experienced during her disease course a multi-bacterial and fungal EG lesion caused by <it>fusarium solani</it>. Despite targeted antibiotics and anti-fungi therapy, the lesion extended for as long as 18 months and only massive granulocytes pockets transfusions in association with G-CSF had the capacity to cure this lesion.</p> <p>Conclusion</p> <p>We propose that granulocytes pockets transfusions will be beneficial to heal EG especially in severely immunocompromised patients.</p

    Factors associated with problem drinking among women employed in food and recreational facilities in northern Tanzania.

    Get PDF
    BACKGROUND: There is growing evidence that alcohol consumption is associated with increased risk of HIV infection. To determine factors associated with problem drinking, we analyzed data collected in two prospective cohorts of at-risk female food and recreational facility workers in northern Tanzania. METHODS: We enrolled HIV seronegative women aged 18-44 years and employed in the towns of Geita, Kahama, Moshi, and Shinyanga. At enrolment, women were interviewed to obtain information about alcohol use, using CAGE and AUDIT screening scales, and risk factors for HIV infection. Blood and genital samples were collected for detection of HIV and sexually transmitted infections (STIs). We characterized alcohol use, concordance, and agreement of the scales, and examined the associations between characteristics of participants and problem drinking as defined by both scales using logistic regression. Lastly, we assessed problem drinking as a risk factor for recent sexual behavior and prevalent STIs. RESULTS: Among enrollees, 68% women reported ever drinking alcohol; of these 76% reported drinking alcohol in the past 12 months. The prevalence of problem drinking was 20% using CAGE and 13% using AUDIT. Overall concordance between the scales was 75.0% with a Kappa statistic of 0.58. After adjusting for age, independent factors associated with problem drinking, on both scales, were marital status, occupation, facility type, increasing number of lifetime sexual partners, and transactional sex in the past 12 months. In addition, women who were problem drinkers on either scale were more likely to report having ≥ 1 sexual partner (CAGE: aOR = 1.56, 95% confidence interval, CI: 1.10-2.23; AUDIT: aOR = 2.00, 95% CI: 1.34-3.00) and transactional sex (CAGE: aOR = 1.79, 95% CI: 1.26-2.56; AUDIT: aOR = 1.51, 95% CI: 1.04-2.18), in the past 3 months. CONCLUSION: These findings suggest that interventions to reduce problem drinking in this population may reduce high-risk sexual behaviors and contribute in lowering the risk of HIV infection

    Reconstruction of major maternal and paternal lineages of the Cape Muslim population

    Get PDF
    The earliest Cape Muslims were brought to the Cape (Cape Town - South Africa) from Africa and Asia from 1652 to 1834. They were part of an involuntary migration of slaves, political prisoners and convicts, and they contributed to the ethnic diversity of the present Cape Muslim population of South Africa. The history of the Cape Muslims has been well documented and researched however no in-depth genetic studies have been undertaken. The aim of the present study was to determine the respective African, Asian and European contributions to the mtDNA (maternal) and Y-chromosomal (paternal) gene pool of the Cape Muslim population, by analyzing DNA samples of 100 unrelated Muslim males born in the Cape Metropolitan area. A panel of six mtDNA and eight Y-chromosome SNP markers were screened using polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP). Overall admixture estimates for the maternal line indicated Asian (0.4168) and African mtDNA (0.4005) as the main contributors. The admixture estimates for the paternal line, however, showed a predominance of the Asian contribution (0.7852). The findings are in accordance with historical data on the origins of the early Cape Muslims.Web of Scienc
    • …
    corecore