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Sintesis dan Karakterisasi Membran Poliuretan dari Minyak Biji Karet dan Heksametilen-1,6-diisosianat Nurman, Salfauqi; Marlina, Marlina; Saiful, Saiful; Saleha, Sitti
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 4 (2015): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v10i4.3772

Abstract

Minyak biji karet dapat dimanfaatkan untuk pembuatan membran poliuretan. Minyak biji karet memiliki bilangan hidroksi 40,33 mgKOH/g dan bilangan iod 154,05 gI2/g. Sintesis membran poliuretan menggunakan metode ikatan silang. Ikatan silang terbentuk dengan mereaksikan minyak biji karet sebagai sumber gugus -OH dengan heksametilen-1,6-diisosianat sebagai sumber gugus -NCO. Membran poliuretan yang optimum dihasilkan pada komposisi 4,55:5 (g/g) memiliki sifat homogen, kering, elastis, berwarna kuning kecoklatan, bergelombang, fluks 0,544 L/m2.h.bar dan faktor rejeksi 100%. Hasil karakterisasi membran menunjukkan terbentuknya ikatan uretan pada bilangan gelombang 3480 cm-1, struktur morfologi membran padat, memiliki dua tahap dekomposisi pada 210 oC dan 392 oC, titik transisi gelas 65 oC, kekuatan tarik 1,03 kgf/mm2 dan elongasi 497,14%. Dari hasil karakterisasi membran poliuretan, membran tersebut dapat digolongkan pada tipe membran reverse osmosis.
LIRIK LAGU ‘LUAHANKU’ DI MEDIA SOSIAL (ANALISIS ISI PESAN DAKWAH) Saleha, Sitti
An-Nida : Jurnal Komunikasi Islam Vol 17, No 2 (2025)
Publisher : Fakultas Komunikasi dan Desain Program Studi Komunikasi dan Penyiaran Islam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34001/an-nida.v17i2.7344

Abstract

This study aims to analyze the da'wah messages contained in the lyrics of the song "Luahanku" composed by Ustadz Adnin Roslan, as well as to explore the role of social media in strengthening the dissemination of these messages. This study analyzes the da’wah messages in the song "Luahanku" by Ustadz Adnin Roslan, focusing on the values of aqidah (faith), akhlak (morality), and syari’ah (Islamic law) conveyed through the lyrics, using qualitative content analysis with a cognitive semantic approach. The research also explores how social media platforms like Facebook, Instagram, and YouTube amplify these messages, enabling wider dissemination and interaction between the message sender and audience. Findings show that the song emphasizes strengthening belief in Allah (aqidah), promoting ethical behavior and self-improvement (akhlak), and providing guidance for religious duties (syari’ah), with social media playing a key role in spreading and engaging audiences through likes, comments, and shares. This study highlights the effective combination of meaningful lyrical content and digital media as a powerful tool for contemporary Islamic da’wah.
Manajemen Asuhan Kebidanan Pada Nn. “A” dengan obesitas di SMA Negeri 10 Gowa Tahun 2025 Afrianisa, Nurul; Firdayanti, Firdayanti; Saleha, Sitti; Alkautzar, Anieq Mumthi’ah
Jurnal Midwifery Vol 8 No 1 (2026): FEBRUARY
Publisher : Prodi Kebidanan Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jmw.v8i1.64408

Abstract

Adolescence is also a transitional age from childhood to adulthood, where at that age many changes are felt by teenagers searching for their identity by following the current trends and lifestyles of the current era. In Indonesia, the prevalence of childhood obesity based on body mass index (BMI/U) and age ratio in children aged 5–12 years increased from 8.8% (Riskesdas, 2013) to 9.2% (Riskesdas, 2018). The prevalence of obesity and overweight among adolescents aged 16 to 18 years also increased from 1.6% to 4.0% and from 5.7% to 9.5%, respectively. Obesity in adolescents is caused by many factors: lack of physical activity, unbalanced diet, excessive intake of macronutrients, frequent consumption of fast food, a history of obesity in parents, and the habit of skipping breakfast.This research paper aims to carry out Midwifery Care Management for Adolescent Ms. "A" with obesity at State Senior High School 10 Gowa from May 5 to June 23, 2025 using Varney's 7-step midwifery care management approach and documentation of the SOAP form.The results obtained by the Adolescent Midwifery Care Management Ms. "A" with obesity, the client complained of difficulty in carrying out activities due to being overweight and also easily tired during activities, and had a habit of eating excessive portions and not exercising. After eight weeks of care, the physical condition was good, not easily tired, vital signs were within normal limits, and weight loss was seen as the client began to regulate food portions and exercise every day.Conclusion and case study of 7-step Varney and SOAP care management, namely from the first visit to the eighth visit there were no complications, and the weight of Ms. "A" decreased to 53 kg and BMI 22.1 kg/m2, there was no gap between theory and the case of Ms. "A".