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All Journal International Journal of Renewable Energy Development Jurnal Berkala Epidemiologi
Riska Nur Safitri, Riska Nur
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Chemistry Energy Immunology & microbiology Public Health

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The Risk of Exposure to Cigarette Smoke in Anemia During Pregnancy Safitri, Riska Nur; Syahrul, Fariani
Jurnal Berkala Epidemiologi Vol 3, No 3 (2015): Jurnal Berkala Epidemiologi
Publisher : Faculty of Public Health

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.266 KB) | DOI: 10.20473/jbe.v3i3.1679

Abstract

ABSTRACTAnemia is a state of hemoglobin levels in the RBC (Red Blood Cells) are lower than normal according to age and gender. The prevalence of anemia during pregnancy according Riskesdas 2007,2010, and 2013 tend to increase. One of risk factor isenvironmental tobacco smoke (ETS). This research was study the comparative risk of ETS exposure of anemia in pregnant woman. This study used case control design. Research sample consisted of two groups, case and control sample with the comparative at 1:2. Sample cases were pregnant women anemia (n=18) who control in Puskesmas Mojo Surabaya on 2015 while samplescontrol were pregnant woman who did not anemia (n=36), collected by simple random sampling. to determine the influence of risk by calculating the value on OR 95% CI with Statcalc in Epi Info. The independent variables were age, education level, employement status, family income, gestational age, gestational spacing, history of pregnant double, parity, antenatal care (ANC), LILA, Fe tablets. Results showed the risk exposure to ETS on the incidence of anemia in pregnant woma to the OR = 4.09 (1.07 < OR < 16.26), time of beginning the exposure 1st trimester OR = 5.43 (1.12< OR < 34.41), the number of active smokers 1-2 OR = 5.54 (1.20 < OR < 34.28), exposure duration ≤ 15 minute/day OR = 6.33 (1.28 < OR < 40.53).The conclusion is the exposure to cigarette smoke can causeanemia in pregnant woman. It is recommended for pregnant woman to avoid ETS exposure during pregnancy.Keywords: anemia, pregnant woman, environmental tobacco smoke (ETS), number of smoker, exposure duration
Effect of natural dye combination and pH extraction on the performance of dye-sensitized photovoltaics solar cell Estiningtyas, Indri Wasa; Kusumawati, Nita; Setiarso, Pirim; Muslim, Supari; Rahayu, Nunik Tri; Safitri, Riska Nur; Zakiyah, Nafisatus; Fachrirakarsie, Fadlurachman Faizal
International Journal of Renewable Energy Development Vol 12, No 6 (2023): November 2023
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2023.56172

Abstract

Dyes are significant components in Dye Sensitized Solar Cell (DSSC) performance because they act as photosensitizers. Natural dye-based DSSC system fabrication innovations continue to be produced in an effort to improve DSSC performance efficiency. In this study, a DSSC system was developed using double components of natural dyes as natural photosensitizers to enhance DSSC efficiency. This method of making natural dye-based DSSC uses a combination of dye extracts from two different dye sources that have the potential as natural photosensitizers in DSSC. The research aims to investigate the impact of the combined use of two natural dyes and pH variations on DSSC performance. DSSC performance measurements encompass the short-circuit current (Isc), open-circuit voltage (Voc), and DSSC efficiency parameters. The obtained results indicate efficiency values for dyes (a) sappan wood/ethanol and turmeric/methanol; (b) turmeric/methanol and beetroot/ethanol; and (c) beetroot/ethanol and turmeric/distilled water. At neutral pH, the efficiency values are 2.09%, 2.10%, and 2.19%, respectively. Meanwhile, at acidic pH of 2.59%; 2.39%; and 2.71%. Notably, the dye efficiency values at acidic pH surpass those found at neutral pH conditions. The highest efficiency is observed in the combination of dye (c) beetroot/ethanol and turmeric/distilled water with efficiency reaching 2.71% at acidic pH.
Co-Authors Estiningtyas, Indri Wasa Fachrirakarsie, Fadlurachman Faizal Fariani Syahrul Nita Kusumawati Pirim Setiarso Rahayu, Nunik Tri Supari Muslim Zakiyah, Nafisatus