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All Journal Journal of Nutrition College BAREKENG: Jurnal Ilmu Matematika dan Terapan Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian
Setyawan, Fajar
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Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Energy Engineering Environmental Science Health Professions Mathematics Mechanical Engineering Medicine & Pharmacology Physics Transportation

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HUBUNGAN PENGETAHUAN DAN SIKAP GIZI DENGAN PERILAKU MAKAN DARI LUAR RUMAH PADA REMAJA DI KOTA SURAKARTA Setyawan, Fajar; Panunggal, Binar; Nuryanto, Nuryanto; Syauqy, Ahmad; Rahadiyanti, Ayu
Journal of Nutrition College Vol 8, No 4 (2019): Oktober
Publisher : Departemen Ilmu Gizi, Fakultas Kedokteran, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.895 KB) | DOI: 10.14710/jnc.v8i4.25832

Abstract

Latar Belakang: Perilaku makan dari luar rumah meningkat pada periode remaja dan perilaku ini sering dikaitkan dengan obesitas. Pada derajat tertentu pengetahuan dan sikap merupakan faktor yang berpengaruh terhadap perilaku makan remaja. Penelitian ini bertujuan untuk melihat hubungan antara pengetahuan, sikap, dengan perilaku makan dari luar rumah pada remaja.Metode: Penelitian ­cross-sectional dilakukan pada 262 subjek remaja berusia 15-17 tahun di SMAN 3 Surakarta yang dipilih secara acak. Data pengetahuan, sikap, dan perilaku makan remaja diperoleh dengan menggunakan kuesioner. Uji statistik yang digunakan adalah uji Rank Spearman dan Uji U Mann-Whitney.Hasil: Sebanyak 61% subjek memiliki tingkat pengetahuan gizi sedang dan 13% subjek tergolong memiliki tingkat pengetahuan gizi tinggi. Subjek memiliki nilai median 5,3 dari 7 skala likert untuk motivasi makan sehat. Median frekuensi makan dari luar rumah subjek sebanyak 8 kali dalam seminggu terakhir. Ada hubungan antara sikap motivasi makan sehat (= -0,131, p=0,034), uang jajan (=0,166, p=0,007), dan lama di luar rumah ketika hari libur (=-0,215, p=0,000) dengan frekuensi makan dari luar rumah. Ada beda signifikan (p=0,016) frekuensi makan dari luar rumah antara laki-laki dan perempuan.Simpulan: Terdapat korelasi negatif antara sikap motivasi makan sehat dengan frekuensi makan dari luar rumah. Ada korelasi positif lama di luar rumah ketika hari libur dan uang jajan dengan frekuensi makan dari luar rumah. Ada beda frekuensi makan dari luar rumah antara laki-laki dan perempuan.
PENGARUH PUPUK LIMBAH CINCAU TERHADAP PENYAKIT DAN KEANEKARAGAMAN SERANGGA TANAMAN JAGUNG imam Habibi; setyawan, Fajar; Listiawati, Selia; Cholil Mahfud, Mohammad
Viabel : Jurnal Ilmiah Ilmu-Ilmu Pertanian Vol 17 No 2 (2023): November 2023
Publisher : Universitas Islam Balitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35457/viabel.v17i2.2774

Abstract

Utilization of organic fertilizer aims to increase soil fertility and efforts to improve the balance of the corn plant ecosystem. One source of organic fertilizer is black grass jelly waste, both solid and liquid. Black grasss jelly waste is available in excess because factories that produce black grass jelly have not utilized the waste as an alternative to organic fertilizer. The purpose of this study was to determine the effect of organic fertilizer from black grass jelly waste both solid and liquid on the abundance of insects and their natural enemies. This research started from September to December 2021. It took place at the Integrated Field Laboratory, Kadiri Islamic University, in Rejomulyo Village, Kediri City, with a pH of 7, daily temperature and humidity (±28.3°C and 72.2%) with rainfall 45 mm/month. Variable observations of downy mildew disease sentitivity index and insect diversity. The results showed that the effect of grass jelly fertilizer had an effect on the level of resistance to downy mildew attacks. In all the insects found were 47 families consisting of 6 orders. On diversity has a moderate value. In terms of evenness and species richness, it was found that all the results had high scores. So that the treatment of solid and liquid fertilizers against insect diversity is very good.
ONE-DIMENSIONAL CUTTING STOCK PROBLEM THAT MINIMIZES THE NUMBER OF DIFFERENT PATTERNS Silalahi, Bib Paruhum; Hanum, Farida; Setyawan, Fajar; Supriyo, Prapto Tri
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 16 No 3 (2022): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.926 KB) | DOI: 10.30598/barekengvol16iss3pp805-814

Abstract

Cutting stock problem (CSP) is a problem of cutting an object into several smaller objects to fulfill the existing demand with a minimum unused object remaining. Besides minimizing the remaining of the object, sometimes there is another additional problem in CSP, namely minimizing the number of different cutting patterns. This happens because there is a setup cost for each pattern. This study shows a way to obtain a minimum number of different patterns in the cutting stock problem (CSP). An example problem is modeled in linear programming and then solved by a column generation algorithm using the Lingo 18.0 software.
Co-Authors Ahmad Syauqy Ayu Rahadiyanti Bib Paruhum Silalahi Binar Panunggal Cholil Mahfud, Mohammad Farida Hanum Imam Habibi Listiawati, Selia Nuryanto Nuryanto Prapto Tri Supriyo