Found 9 Documents

Jurnal Gizi dan Pangan Vol. 14 No. 2 (2019)
Publisher : Food and Nutrition Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (241.084 KB) | DOI: 10.25182/jgp.2019.14.2.77-82


The primary objective of this research was to examine the effect of provision of red pomegranate juice on the levels of malondialdehyde (MDA) and blood lactic acid in Wistar rats with maximum physical activity. The study employed a true experiment design. The pretest-posttest with control group design was done on 35 rats given maximum physical activity and treatment for 28 days. The rats were divided into 5 groups: the control group, group with treatment of multivitamin, group with treatment of red pomegranate 2 ml, 4 ml, and 6 ml. The MDA level was measured by TBARS method and lactic acid levels were analysed using ELISA. Comparison statistical analysis was done using paired t-test, while comparison of mean differences between treatment groups were tested using One-way ANOVA, and followed by LSD as the post hoc test. Provision of red pomegranate juice in a variety of doses significantly decreased the levels of MDA and blood lactic acid (p<0.05). The highest MDA level decrease occurred in the group treated with multivitamin (68.02%) and the highest decrease in the levels of blood lactic acid occurred in the group with 6 ml red pomegranate juice (25.94%). Based on the findings, it can be concluded that red pomegranate juice can lower the levels of MDA and blood lactic acid significantly in rats with maximum physical activity.
Synthesis of Polymer Electrolyte Membrane based on Acid-Base complex pair and Its Characteristics Gustian, Irfan; Çelik, Sevim Ünugur; Zainuddin, Ahmad; Suratno, Wawang; Bozkurt, Ayhan; Siregar, Rustam Efendi
Journal of Mathematical and Fundamental Sciences Vol 46, No 1 (2014)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.991 KB) | DOI: 10.5614/


In this work, acid-base complex pair polymer electrolyte membranes on sulfonated polysulfone with 1H-benzotriazole were investigated. Polysulfone was sulfonated in 1,2-dichloroethane using the homogeneous method with trimethylsilyl chlorosulfonate as sulfonating agent. The monomer mole ratio between polysulfone and trimethysilyl chlorosulfonate was 1:1.5.The sulfonated polysulfone was added with 1H-benzotriazole at mole ratios of x = 0.5 and x =1. The proton transfer from 1H-benzotriazole to the sulfonated polysulfone was measured using FTIR. Thermo-gravimetry analysis showed that the samples were thermally stable up to approximately 250°C and the maximum proton conductivity was found to be 3.34 x 10-4 S cm-1 at 150°C.
Revitalisasi Nilai-nilai Sosial Tauhid dalam Merespons Realitas Kekinian Zainuddin, Ahmad
ISLAMICA: Jurnal Studi Keislaman Vol 10 No 2 (2016): Maret
Publisher : Pascasarjana Universitas Islam Negeri Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.688 KB) | DOI: 10.15642/islamica.2016.10.2.441-464


This article discusses the efforts to revitalize social values on the basis of faith in monotheism that is alienated from social reality. So far, Islamic movement is too normative and tends to neglect differentiation, segmentation and social stratification in society. Consequently, the normative sentiments regarding the unity of the people became much more prominent than the actual commitment to defend the weak, displaced and oppressed groups in society. To understand Islam needs to look at the historical determinism, in order to avoid a partial understanding. Pure and social ritual can be performed equally an ideal personification of a true Muslim. The egalitarian character of Islam as a religion of liberation manifestation should be used to understand human conception and reality. Thus, someone will not be separated from his nature as human being who must worship the Lord and carry out social functions, as well as to avoid the trap of ritual extremism or social extremism. The revitalization of social values of monotheism by integrating relational networks of Islam in social change gave birth to anti ethnocentrism, universalism and liberation.
MAIZE SUPPLY RESPONSE IN INDONESIA Magfiroh, Illia Seldon; Zainuddin, Ahmad; Setyawati, Intan Kartika
Buletin Ilmiah Litbang Perdagangan Vol 12 No 1 (2018)
Publisher : Trade Analysis and Development Agency, Ministry of Trade of Republic of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1099.114 KB) | DOI: 10.30908/bilp.v12i1.309


Permintaan terhadap komoditas jagung di Indonesia terus meningkat karena produksi jagung tidak memadai untuk mencukupi konsumsi jagung yang terus meningkat. Dampak dari kondisi ini adalah terjadinya kelangkaan komoditas jagung dan meningkatnya harga jagung. Penelitian ini bertujuan untuk menganalisis respon penawaran petani jagung terhadap perubahan harga input dan output. Dalam penelitian ini, juga dilakukan upaya untuk menguji respon penawaran petani jagung di Indonesia dengan menggunakan metode Error Correction Model (ECM). Penelitian ini menggunakan data sekunder. Hasil penelitian menunjukkan bahwa penawaran petani terhadap jagung dipengaruhi oleh harga kedelai, upah tenaga kerja, harga benih, harga pupuk urea, harga pakan, dan harga jagung impor. Petani jagung juga responsif terhadap harga jagung, oleh karena itu, kebijakan stabilitas harga dan kebijakan harga dasar dapat diberlakukan kembali untuk mendukung swasembada jagung. Penelitian ini juga merekomendasikan bahwa masih perlu kebijakan subsidi input dan perluasan lahan untuk meningkatkan penawaran jagung. Demand for maize in Indonesia keeps growing due to low maize production, while consumption keep increasing (excess demand). The situation creates scarcity in maize and leads to the commodity’s high price. This study aims to analyze the supply response of maize farmers on the changes of input and output prices. This study also examines the supply response of maize farmers in Indonesia by using Error Correction Model (ECM). The study uses secondary data. Results of the study shows  that supply of maize farmers is influenced by price of soybeans, wages of labor, prices of seed, of urea fertilizer, of feed, and of imported maize. Maize farmers are also responsive to changes in maize prices and therefore the policy of maize floor price can be re-applied to support the national food self-sufficiency. In addition the input subsidy and land expansion policies are still necessary to increase maize supply.
A Correlation between Student’s Mastery of Past Tense and Their Achievement in Writing Narrative Text Zainuddin, Ahmad; Nurhafifah, Gusti; Wijaya, Armeria
Tell : Teaching of English Language and Literature Journal Vol 4, No 2 (2016)
Publisher : English Department FKIP Universitas Muhammadiyah Surabaya Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/tell.v4i2.2103


This research purposed to search and find out the correlations between students’ mastery of past tense and their achievement in writing narrative text. The method in this research used a purposive sampling technique with total sample 30 students.  In this research, the data are obtained using two kinds of test namely Grammar and writing test. Meanwhile, the data were analyzed using Product Moment Pearson. The outlays of this research, the average score of past tense is 69,33and writing score is 77,33. Thus, the final result in this research when the formula correlation is applied, the score is 0,797 or substantial. It means that the r value is higher than r table; students’ master past tense influence to writing narrative text. It can be concluded that there is a positive correlation between students’ mastery of past tense and their achievement in writing narrative text
RESPON HARGA PRODUSEN TERHADAP PERUBAHAN HARGA KONSUMEN BAWANG MERAH DI INDONESIA Magfiroh, Illia Seldon; Zainuddin, Ahmad; Setyawati, Intan Kartika; Rahman, Rena Yunita
JSEP (Journal of Social and Agricultural Economics) Vol 10 No 3 (2017)
Publisher : University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jsep.v10i3.6481


High price fluctuations in onions can cause prices at the consumer level to change in a relatively quick time. However, the price change is not necessarily enjoyed by most of the onion farmers. This implies a high marketing margin and low farmer prices. This study aims to analyze the integration of onion consumer market with onion producer market in Indonesia by using VECM (Vector Error Correction Model). Monthly onion price data with 48 time series period is used to analyze the onion market integration. The results show that only the consumer market that affects the market of onion producers (one way). There are short-term and long-term market integration between the consumer market and the onion producers. However, changes that occur in the consumer market are not always accepted by the onion producers of the same scale. This shows that the price information of onion in the producers market is not always transmitted perfectly to the onion producer market.
JURNAL PANGAN Vol 27, No 1 (2018): PANGAN
Publisher : Perum BULOG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (668.143 KB) | DOI: 10.33964/jp.v27i1.404


Salah satu kondisi yang dihadapi industri gula nasional dalam bidang on-farm adalah ketersedian lahan tebu yang terbatas. Pertumbuhan lahan tebu secara nasional mengalami penurunan. Produktivitas tebu nasional hanya berkisar antara 60-70 ton/ha (idealnya lebih dari 100 ton/ha). Oleh karena itu, perlu dilakukan identifikasi adanya peluang untuk meningkatkan potensi produktivitas tebu melalui peningkatan efisiensi, besaran nilai efisiensi dan faktor-faktor penentu inefisiensi usahatani tebu. Penelitian ini dilaksanakan di wilayah kerja PTPN X. Sampel diambil secara purposive dengan memilih 35 orang responden petani tebu. Pendugaan parameter fungsi produksi frontier stokastik (SFPF). Hasil Penelitian menunjukkan bahwa variabel yang berpengaruh signifikan adalah luas lahan, pupuk anorganik, pestisida dan tenaga kerja. Nilai indeks rata-rata efisiensi teknis, alokatif, dan ekonomi usahatani tebu di wilayah kerja PTPN X berturut-turut adalah sebesar 0,77, 0,60, dan 0,45 yang mengindikasikan bahwa usahatani tebu efisien secara teknis, namun belum efisien secara alokatif dan ekonomi karena biaya produksi yang masih tinggi dengan harga gula yang masih belum memberikan keuntungan kepada petani tebu. Potensi produksi tebu di wilayah kerja PTPN X masih dapat ditingkatkan menjadi 151,40 Ton/Ha bahkan mampu meningkat sampai dengan 156,67 Ton/Ha dengan menggunakan teknologi bud chip, peningkatan kompetensi dan melakukan manajemen produksi yang baik.
Implementasi Metode K-Nearest Neighbor Untuk Klasifikasi Penduduk Miskin Di Desa Ngemplak Kidul Kabupaten Pati Jawa Tengah Zainuddin, Ahmad
Jurnal Informatika SIMANTIK Vol 4, No 1 (2019): Jurnal Informatika SIMANTIK
Publisher : STMIK Cikarang

Show Abstract | Download Original | Original Source | Check in Google Scholar


Penanggulangan kemiskinan dan pemberdayaan masyarakan, merupakan salah satu tugas pemerintah daerah yang harus dijalankan, sesuai dengan amanah peraturan perundangan, sehingga pengklasifikasian atau pendataan yang baik merupakan suatu hal yang harus dilakukan. Untuk mendapatkan hasil tersebut maka dibutuhkan penerapan teknologi masa kini yaitu tentang pemanfaatan program aplikasi. Program aplikasi merupakan salah satu cara yang efektif dalam hal pengklasifikasian penduduk miskin tersebut. Keberadaan program aplikasi tentunya akan memberikan data yang akurat dan tepat, sehingga kebijakan yang harus diambil oleh pemerintah desa Ngemplak Kidul jadi tepat sasaran atau dengan kata lain sesuai dengan kebutuhan masyarakat. Pengklasifikasian data penduduk miskin juga dapat menentukan arah kebijakan bagi pemerintah daerah dalam hal program mengentaskan kemiskinan. Klasifikasi pendataan penduduk miskin dengan memanfaatkan teknologi terkini untuk memenuhi kebutuhan perangkat desa, sebagai suatu pemecahan masalah dari ketidak akuratan, ketepatan data untuk mendapatkan hasil klasifikasi penduduk miskin, proses dan tujuan dari klasifikasi itu sendiri. Tujuan penelitian ini adalah membuat Program aplikasi Klasifikasi Penduduk Miskin, dengan menggunakan metode K-nearest neighbor sebagai pengambilan keputusan klasifikasi penduduk miskin. Hasil dari pembuatan program aplikasi klasifikasi penduduk miskin, di desa Ngemplak Kidul kabupaten Pati, dengan metode k-nearest neighbor adalah untuk mempermudah perangkat desa, dalam mendapatkan hasil secara tepat sasaran, data akurat secara efisien waktu.
PREFERENSI PETANI TERHADAP VARIETAS TEBU (Studi Kasus di PT. Perkebunan Nusantara X) Zainuddin, Ahmad; Wibowo, Rudi
JURNAL PANGAN Vol 28, No 1 (2019): PANGAN
Publisher : Perum BULOG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1942.908 KB) | DOI: 10.33964/jp.v28i1.409


Permasalahan dari segi perbibitan yang menyebabkan rendahnya efisiensi industri gula nasional adalah tidak seimbangnya komposisi varietas-varietas tebu yang ditanam yaitu antara varietas masak awal, masak tengah dan masak akhir sehingga rendemen tidak optimal. Oleh karena itu, perlu dilakukan analisis preferensi petani terhadap atribut bibit/varietas tebu. Penelitian ini dilaksanakan di wilayah kerja PTPN X. Sampel diambil secara purposive dengan memilih 45 orang responden petani tebu. Preferensi petani dianalisi dengan menggunakan pendekatan multiatribut Fishbein. Hasil Penelitian menunjukkan terdapat 10 atribut yang dianggap paling penting bagi petani dalam menentukan pemilihan varietas bibit tebu. Selain itu, sikap responden petani berbeda-beda terhadap ketiga jenis varietas tebu. Petani tebu cenderung lebih menyukai varietas masak akhir dibandingkan masak awal dan akhir. Petani juga lebih menyukai tebu varietas masak awal dibandingkan dengan varietas masak akhir. Hal ini dikarenakan varietas masak akhir diyakin oleh petani memiliki potensi produktivitas dan rendemen yang lebih tinggi dibandingkan dengan varietas masak awal atau tengah.