Claim Missing Document
Check
Articles

Found 2 Documents
Search

Thermal stability effect of H4[PVMo11O40]/SiO2 Leni Sinaga; Aldes Lesbani
Science and Technology Indonesia Vol. 2 No. 1 (2017): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2162.121 KB) | DOI: 10.26554/sti.2017.2.1.25-28

Abstract

Synthesis and characterization of supported polyoxometalate H4[PVMo11O40].nH2O with SiO2 through sol-gel method have been done. The compound H4[PVMo11O40]/SiO2 was characterized through FT-IR spectrophotometer, XRD, and SEM-EDX. The results showed that FT-IR spectrum of H4[PVMo11O40]/SiO2 has the primary vibration on wavenumber at 1064.7 cm-1 (P-O); 964.4 cm-1 (Mo=O); 864.1 cm-1 (Mo-Oe-Mo); 779.2 cm-1 (Mo-Oc-Mo); 462.9 cm-1 (Si-O); and 1087.9 cm-1 (Si-O-Si). The XRD diffraction pattern showed that H4[PVMo11O40].nH2O has the highest crystallinity. However, after it’s supported with SiO2, the properties of crystallinity has decreased due to the excess water during the support process. The result of SEM-EDX showed that H4[PVMo11O40]/SiO2 material has homogeneous distribution with particle size distribution of 1330 nm (1,33 μm). The acidity test by qualitative and quantitative methods show that H4[PVMo11O40]/SiO2 more acidic than H4[PVMo11O40].H2O. The effect temperature on the crystallinity showed that increasing calcination temperature made the crystallinity properties of H4[PVMo11O40]/SiO2 increased. Keywords : polyoxometalate, H4[PVMo11O40].nH2O, SiO2.
Hubungan Perilaku Ibu Hamil Terhadap Pemanfaatan Pemeriksaan Triple Eliminasi di Puskesmas Kuala Bangka Kabupaten Labuhan Batu Utara Tahun 2022 Leni Sinaga; Nur Azizah; Lidya Natalia Sinuhaji; Rosmani Sinaga; Deby Chuntya Yun; Marsa Adelia
Nursing Applied Journal Vol. 3 No. 2 (2025): April : Nursing Applied Journal
Publisher : LPPM STIKES KESETIAKAWANAN SOSIAL INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57213/naj.v3i2.629

Abstract

Mother-to-child transmission of HIV, Syphilis, and Hepatitis B remains a public health challenge. Transmission can occur during pregnancy, childbirth, and breastfeeding. To reduce the rate of transmission, the Ministry of Health of the Republic of Indonesia launched the Triple Elimination program through screening pregnant women in integrated antenatal services. However, the use of this examination is influenced by the behavior of pregnant women, including knowledge, attitudes, and actions. To find out the relationship between the knowledge, attitudes, and actions of pregnant women with the use of Triple Elimination examinations at the Kuala Bangka Health Center, North Labuhan Batu Regency in 2022. This study is an analytical observational study with a cross sectional design. The sample consisted of 35 pregnant women who visited the Kuala Bangka Health Center. Data was collected through questionnaires and analyzed using the chi-square test. Most of the respondents had good knowledge (45.7%), positive attitudes (74.3%), and good actions (45.7%). There was a significant relationship between knowledge (p=0.007), attitudes (p=0.003), and actions (p=0.007) with the use of Triple Elimination examinations. Knowledge, attitudes, and actions of pregnant women have a significant relationship with the use of Triple Elimination examinations. Increased education and support in antenatal services is needed to support the success of the mother-to-child elimination program of HIV, Syphilis, and Hepatitis B.