Judul: Strategi Nafkah Rumah Tangga Internally 
Displaced Persons (IDPs) Pasca Erupsi Gunung Sinabung (Kasus: Huntap Keci-Keci, Kecamatan Simpang Empat, Kabupaten Karo)
Abstrak: Erupsi Gunung Sinabung sepuluh tahun silam menciptakan perubahan yang besar bagi rumah tangga petani disekitar kaki Gunung Sinabung yang mana saat ini disebut sebagai rumah tangga internally displaced persons (IDPs). Perubahan fisik dengan tinggal di Huntap Keci-keci menyebabkan perlu dilakukannya strategi nafkah sebagai upaya bertahan hidup. Tujuan penelitian ini adalah menganalisi perubahan modal nafkah, strategi nafkah, dan kondisi ekonomi sebelum dan sesudah erupsi Gunung Sinabung. Survey dilakukan terhadap 30 rumah tangga IDPs, wawancara terhadap informan, dan studi literatur. Data kuantitaif diolah dengan Chi-square, uji T, dan Rank Spearman. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan yang signifikan antara modal nafkah, strategi nafkah, dan kondisi ekonomi sebelum dan sesudah erupsi. Karakteristik umur memiliki korelasi hubungan dengan modal nafkah. Modal nafkah yang memiliki hubungan dengan strategi nafkah adalah modal alam dan modal manusia. Modal nafkah yang dimiliki rumah tangga IDPs tidak mengalami perubahan nilai yang cukup besar namun mengalami perubahan bentuk modal dari modal finansial ke modal alam atau ke modal fisik. Beberapa rumah tangga IDPs menjual emas untuk membeli lahan pertanian atau alat produski pertanian. Kata kunci: kondisi ekonomi, modal nafkah, rumah tangga IDPs, strategi nafkah, The eruption of Mount Sinabung ten years ago created a big change for farmer households around the foot of Mount Sinabung which are currently referred to as households of internally displaced persons (IDPs). Physical changes by living in the small shelter area make it necessary to implement a livelihood strategy as an effort to survive. The purpose of this study was to analyze changes in living capital, livelihood strategies, and economic conditions before and after the eruption of Mount Sinabung. The survey was conducted on 30 IDPs households, interviews with informants, and literature studies. Quantitative data were processed using Chi-square, T test, and Rank Spearman. The results showed that there was no significant difference between income capital, income strategy, and economic conditions before and after the eruption. Age characteristics have a correlation with income capital. Living capital that has a relationship with the livelihood strategy is natural capital and human capital. The income capital owned by IDPs households did not experience a significant change in value but did experience a change in the form of capital from financial capital to natural capital or to physical capital. Some IDPs households sell gold to buy agricultural land or agricultural production tools.
Keyword: economy condition, IDPs, livelihood strategy

Judul: Strategi dan Struktur Nafkah Rumah Tangga Petani Kentang Pasca Bencana Alam Erupsi Gunung Sinabung
Abstrak: Penelitian ini dilakukan di Desa Gajah dan Desa Dolat Rayat Kecamatan Berastagi, Kabupaten Karo yang terkena dampak akibat erupsi Gunung Sinabung di tahun 2017-2018. Penelitian ini bertujuan untuk menganalisis perbedaan strategi nafkah, struktur nafkah dan modal nafkah rumah tangga petani kentang di Desa Gajah dan Desa Dolat Rayat pasca terjadinya bencana alam erupsi Gunung Sinabung. Penelitian ini menggunakan pendekatan kuantitatif yang didukung dengan data kualitatif. Pendekatan penelitian kuantitatif dilakukan dengan metode survei dengan instrumen kuesioner dan dikombinasikan pendekatan kualitatif dengan metode wawancara mendalam pada tahap pengumpulan data.
Keyword: modal nafkah, rumahtangga petani kentang, strategi nafkah, struktur nafkah

Judul: Validation method for determination of apigenin in extract celery with high performance liquid chromatography
Abstrak: Apigenin is an active substance derived from celery (Apium graveolens) and widely used for the treatment of gout. Determination method of apigenin which have been validated was introduced by Frankee et al. J Food Compos Anal 17: 1-35 (2005). Apigenin analysis was done by high performance liquid chromatography (HPLC). To make sure that HPLC analysis method can be used for the intended purpose then the method was validated. Parameters determined on method validation were linearity, limit of detection, limit of quantification, precision, and accuracy. All parameters were in accordance with the acceptance criteria of Association of Official Analytical Chemist. The linearity in the concentration of 3,8; 5,7; and 7,6 mg/l had correlation coefficent of 0,9900–0,9998. limit of detection in this method was 2,7222 mg/l and limit of quantification was 8,2500 mg/l. Interday precision in five restating showed good precision with relative standard deviation of 3,85%. Accuracy was determined by standard addition method with recovery percentage of 95,00–118,77%. Average concentration of apigenin is 0,0052% (w/w).
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