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PENGARUH KONSENTRASI SERTA PENAMBAHAN GLISEROL TERHADAP KARAKTERISTIK FILM ALGINAT DAN KITOSAN Anward, Giovanni; Hidayat, Yusuf; Rokhati, Nur
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 2, Nomor 3, Tahun 2013
Publisher : JURNAL TEKNOLOGI KIMIA DAN INDUSTRI

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Bioethanol used as fuel should have purity greater than 99.5%, but the conventional distillation produces only 95% purity. One way to increase the purity of ethanol is pervaporation method using selective membrane. The aim of this research is to prepare and characterize alginate and chitosan films. To determine the optimum concentration of alginate and chitosan films, both of these films were characterized. The results showed that the optimum alginate film obtained at 3% of concentration with the addition of 20% glycerol, while the optimum chitosan film obtained at 3% of concentration without the addition of glycerol. Alginate film has the highest permeability and swelling degree, while chitosan film has the lowest value. Alginate and chitosan films have the highest swelling degree in water, then 95% alcohol and the lowest is in PA alcohol.
AN INSECTICIDAL COMPOUND FROM Barringtonia asiatica Maharani, Rani; Ishmayana, Safri; Hidayat, Yusuf; Dono, Danar
Jurnal Sains dan Terapan Kimia Vol 3, No 1 (2009)
Publisher : Jurnal Sains dan Terapan Kimia

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Abstract

One oleanane glycoside was successfully isolated from the seeds of Barringtoniaasiatica. The structure of this compound was determined by one- and two- dimensional 1H- and13C-NMR and also by direct comparison with standard compound. This compound showed thehighest insecticidal activity against Crocidolomia pavonana. The result showed that B. asiaticaseeds have the most active insecticidal compound with LC50 value of 290 ppm that is potentialfor natural insecticide application.Keywords: Barringtonia asiatica, oleanane glycoside, insecticidal activity,Crocidolomia pavonana
HUBUNGAN SOSIAL ANTARA ETNIS BANJAR DAN ETNIS MADURA DI KOTA BANJARMASIN Hidayat, Yusuf
Jurnal Komunitas Vol 5, No 1 (2013): Tema Edisi: Multikulturalisme dan Interaksi Sosial
Publisher : Jurnal Komunitas

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Tujuan penelitian ini adalah untuk memahami integrasi sosial antara etnis Banjar dan Madura di Kota Banjarmasin. Berbeda dengan kota lain di Kalimantan, di kota Banjarmasin, etnis Banjar dan Madura dapat hidup bersama tanpa ada konflik keras meskipun kedua etnis tersebut sama-sama dikenal sebagai etnis pedagang. Penelitian ini mengadopsi metode kualitatif yang berfokus pada keunikan setiap individu sebagai produsen realitas. Penelitian ini telah dilakukan di kota Banjarmasin dan telah mewawancarai sembilan informan. Hasil penelitian ini mengungkapkan beberapa fakta. Pertama, agama dan aktivitas ritual merupakan media integrasi bagi etnis Banjar dan Madura. Kedua, penegakan hukum dalam masyarakat telah menimbulkan rasa hormat masyarakat terhadap hak orang lain. Ketiga, sikap etnis Madura yang menghormati budaya lokal menumbuhkan pemahaman yang baik pada masyarakat etnis Madura terhadap etnis Banjar. The objective of this study is to explore social integration between Banjar ethnic and Madura ethnic in City of Banjarmasin. Different from the etnich condition in other town in Borneo, in Banjarmasin city, both ethnic can life together without any hard conflict although they both have been known as ethnic trader. This research adopted qualitative method focused on the uniqueness of each individual as producer of reality. This research has been done in Banjarmasin city. This research has found that: first, religion and its ritual and activity is a media of integration between Banjar and Madura Ethnic. Second, law empowering in society have made the society respect to the other right. Third, the attitudes of Madura ethnic who show respects to local culture have increased the understanding between Madura ethnic and Banjar ethnic.
PENGEMBANGAN SISTEM PAKAR DIAGNOSIS PENYAKIT JERUK KEPROK GARUT Siti Fatimah, Dini Destiani; Hidayat, Yusuf
Jurnal Algoritma Vol 12, No 1 (2015): Jurnal Algoritma
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Hama penyakit tanaman jeruk merupakan Organisme Pangganggu Tanaman (OPT) yang harus diperhatikan, karena dapat mempengaruhi kondisi maupun produktifitas tanaman jeruk. Lebih – lebih OPT tersebut selain sebagai hama juga sebagai vektor pembawa penyakit. Masalah yang paling menonjol adalah serangan penyakit CVPD, yang salah satunya ditularkan oleh serangga hama. Meskipun sudah banyak pakar spesialis penyakit jeruk tetapi pakarpun mempunyai keterbatasan seperti terbatasnya jam kerja dan banyaknya kunjungan kerja sehingga menyulitkan petani untuk melakukan konsultasi langsung. Keterbatassan tersebut dapat disiasati dengan suatu teknologi informasi yang dapat membantu meringankan pakar dengan cara mengembangkan aplikasi sistem pakar diagnosis penyakit jeruk keprok Garut berbasis web. Tujuan penelitian ini untuk memberikan informasi mengenai penyakit jeruk keprok Garut dan dapat mendiagnosis penyakit jeruk keprok Garut beserta solusi pengobatannya. Penelitian ini bertujuan untuk mengembangkan sistem pakar diagnosis penyakit jeruk keprok Garut berbasis web. Sistem pakar ini dapat diakses oleh siapa saja dimana dan kapan saja selama ada koneksi internet untuk membantu petani, masyarakat umum mengenal dan berkonsultasi mengenai penyakit jeruk keprok Garut. Sistem pakar diagnosis penyakit jeruk keprok Garut ini dirancang dengan menggunakan metode penelitian ESDLC (Expert System Development Life Cycle) [1]. Sedangkan inferensi yang digunakan adalah Forward Chaining serta Adobe Dreamweaver untuk pembuatannya dan PHP untuk bahasa pemrogramannya. DBMS yang digunakan dalam sistem pakar ini adalah MySQL yang terintegrasi dalam aplikasi XAMMP dan Mozilla Firefox sebagai media browser. Sistem pakar ini diharapkan dapat meningkatkan pemahaman petani ataupun masyarakat umum mengenai penyakit jeruk keprok Garut dan membantu petani untuk berkonsultasi mengenai gejala yang dialami tanaman jeruknyanya seperti pergi ke pakar.
SISTEM PERLADANGAN BERPINDAH SEBAGAI LOCAL GENIUS PADA MASYARAKAT BUKIT DI PEGUNUNGAN MERATUS, KALIMANTAN SELATAN Hidayat, Yusuf
Vidya Karya Jurnal Kependidikan Vol 28, No 1 (2013): April 2013
Publisher : Vidya Karya Jurnal Kependidikan

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This article has the objective to state that farming by moving is not the cause of ecological disaster. Such activity is the local genius that is done and developed by masyarakat Bukit di Mount Meratus in order to keep the nature and human being. However, the change of society orientation in planting commercial plant has created the problems and dillema in masyarakat Bukit di Mount Meratus.
THE IDEATIONAL MEANING REALISED IN THE WRITTEN DISCOURSE IN ONLINE NEWSPAPER ON ABDUL QODIR JAELANI (AQJ) Hidayat, Yusuf
English Education Journal Vol 4 No 1 (2014)
Publisher : English Education Journal

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Abstract

This thesis is aimed at reporting the analysis on the ideational meaning realised in the written discourse in online newspaper on Abdul Qodir Jaelani (AQJ). Under a discourse analysis method, the data were collected through retrieving twenty texts on the discourse of AQJ from some online newspapers. The texts on the discourse of AQJ are analysed using the framework of systemic functional linguistics which is realised based on the ideational meaning as suggested by Halliday & Matthiessen (2004). The findings reveal that there are 1043 participant types (2%) involve throughout the texts. Meanwhile, there are 712 process types (3%) involve, and there are 274 circumstance types (7%) involve throughout the texts. Hence, the existence of participants is more dominant than processes and circumstances available throughout twenty texts. Based on the findings, it is recommended that the English teacher can apply discourse analysis as the approach to analyse the texts in teaching the English learners about how to analyse the clauses of the texts to enhance their ability in analysing the text both journalistic texts (hard and soft news) and classroom texts (text types).
Pengaruh Pelaksanaan Kebijakan Musyawarah Guru Mata Pelajaran Bahasa Inggris terhadap Manajemen Pembelajaran dalam Mewujudkan Kinerja Guru Hidayat, Yusuf
Jurnal Publik : Jurnal Ilmiah Bidang Ilmu Administrasi Negara Vol 11, No 2 (2017): Jurnal Publik : Jurnal Ilmiah Bidang Ilmu Administrasi Negara
Publisher : Jurnal Publik : Jurnal Ilmiah Bidang Ilmu Administrasi Negara

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Tujuan penulisan artikel ini adalah membahas tentang pengaruh pelaksanaan kebijakan musyawarah guru mata pelajaran (MGMP) terhadap manajemen pembelajaran bahasa Inggris dalam mewujudkan kinerja guru bahasa Inggris pada forum musyawarah guru mata pelajaran (MGMP) yang berada dalam naungan Dinas Pendidikan dan Kebudayaan Kabupaten Ciamis. Metoda analisis dalam pembahasan topik utama ini menggunakan model analisis causal efektual dengan meninjau hubungan rasional yang menganalisa hubungan sebab akibat antara pelaksanaan kebijakan musyawarah guru mata pelajaran (MGMP), manajemen pembelajaran bahasa Inggris dan kinerja guru bahasa Inggris. Lokasi penelitian dilakukan di forum musyawarah guru mata pelajaran (MGMP) yang berada dalam naungan Dinas Pendidikan dan Kebudayaan Kabupaten Ciamis dengan jumlah responden sebanyak 88 orang. Pada pembahasan ini menunjukkan hasil bahwa pelaksanaan kebijakan musyawarah guru mata pelajaran (MGMP) berpengaruh tidak signifikan terhadap manajemen pembelajaran bahasa inggris dan kinerja guru bahasa Inggris. Artikel ini berkesimpulan bahwa untuk mewujudkan kinerja guru bahasa Inggris dapat dilakukan dengan mengoptimalkan pelaksanaan kebijakan musyawarah guru mata pelajaran (MGMP) dan manajemen pembelajaran bahasa Inggris. Kata kunci: pelaksanaan kebijakan musyawarah guru mata pelajaran (MGMP), manajemen pembelajaran bahasa Inggris, kinerja guru bahasa Inggris
PENGARUH SLOW LEARNER DAN KEJENUHAN BELAJAR TERHADAP KESULITAN BELAJAR FISIKA SISWA MTs. MADANI ALAUDDIN PAOPAO KABUPATEN GOWA Hidayat, Yusuf
Inspiratif Pendidikan Vol 5, No 2 (2016): Inspiratif Pendidikan
Publisher : Inspiratif Pendidikan

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This Ex Post Facto study aimed to describe and interpret the influence of slow learner and learning saturation to the students learning physics difficulties at MTs Madani Alauddin Paopao-Gowa. This study was conducted for five meetings. It used three variables; 1) slow leaner and learning saturation as the independent variables; and 2) the students’ learning physics difficulties as the dependent variable. The populations of this study were all students of MTs Madani Alauddin Paopao Gowa consisting of 160 students. The sample was 35% of the population (56 students), 22 students from class VII, 17 students from class VIII and 17 students from class IX. The samples were chosen by using proportional sample stratified purposive sampling. To obtain data on Slow Learner, learning saturation and students difficulties in learning Physics, the researcher developed three types of instruments; 1) questionnaire consisting of 25 items; 2) interview guides; and 3) the document dealing with the students’ learning outcomes. Data analysis technique applied was descriptive and inferential statistics for hypothesis testing. Based on the findings and descriptive analysis, it was found that the average score of; 1) Slow Learner was 61.03; 2) Learning Saturation was 61.14; and 3) the students learning physics difficulties was 64.39. The findings of inferential analysis indicated the value of Fcount was 6162.89 while Ftable at 5% significance level was 3.18. Thus, the value of Fcount is much larger than the value of Ftable and the null hypothesis is rejected. It means that there is a significant difference between the slow learner and learning saturation on students learning physics difficulties at MTs Madani Alauddin Paopao Gowa.
Modal Sosial dan Kesuksesan Pedagang Intan Kota Martapura, Kabupaten Banjar, Provinsi Kalimantan Selatan Hidayat, Yusuf
DIMENSI - Jurnal Sosiologi Vol 10, No 2 (2017): November
Publisher : DIMENSI - Jurnal Sosiologi

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This paper is the result of research focused on the study of the importance of social capital in diamonds trading as a rare commodity in Martapura City. This research has been done in Martapura city with qualitative research method and has been interviewed as many as 5 people as informant. This study found that the form of social capital in trading diamonds was trust and social network, reciprocity in a joint venture formed by diamond traders and subscription relationships formed in the sale and purchase of diamonds. Social capital has an important meaning in the success of diamond trading because with the social capital of traders it can muster the power to acquire and market diamonds as a rare and speculative commodity.
Class, Habitus, and the Dynamics of Social Relations of Traders in Diamond Trade in the Martapura Town, South Kalimantan Hidayat, Yusuf
Walisongo: Jurnal Penelitian Sosial Keagamaan Vol 25, No 2 (2017)
Publisher : LP2M - Universitas Islam Negeri (UIN) Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (187.263 KB) | DOI: 10.21580/ws.25.2.1913

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This study examines the pattern of social relationships among diamond traders in diamond trade that polarized into patterns of social relationships between small, medium and large traders with their respective values. This study aims to describe the pattern of social relationships between diamond traders and reveal the rules of the underlying game patterns of their social relationships that lead to polarization of social relationships between small, medium and large traders. This study used Buordieu framework especially about Field, Habitus, and Doxa to analyze the phenomena. This research uses qualitative research methods and has been implemented in the town of Martapura, South Kalimantan. In this study, five people were interviewed, consisting of merchants of a large trader, two medium traders and two merchants. The study finds that first, there are three forms of social relations pattern among traders of diamond namely: cooperation relationships between small traders, competition relationships between wholesalers and middle traders in accordance with its position, he develops cooperative relationships while in diamond market and relationships competition when trading outside the diamond market. Second, Each class has its own rules of play in accordance with their capacity in the sale and purchase of diamonds and the rules of this game have become a common consciousness among members of the merchant class so that all members of the group implement these rules spontaneously and without questioning its validity.Penelitian ini mengkaji tentang pola hubungan sosial antar pedagang intan di dalam perdagangan intan yang terpolarisasi menjadi pola hubungan social antar pedagang kecil, menengah dan besar dengan nilainya masing-masing. Penelitian ini bertujuan untuk menggambarkan pola hubungan social antar pedagang intan dan mengungkap aturan-aturan main yang mendasari pola hubungan sosial mereka sehingga memunculkan polarisasi hubungan sosial antar pedagang kecil, menengah dan besar. Tujuan penelitian ini dianalisis dengan menggunakan kerangka pemikiran Buordieu terutama tentang Field, Habitus dan Doxa. Penelitian ini menggunakan metode penelitian kualitatif dan telah dilaksanakan di kota Martapura, Kalimantan Selatan. Dalam Peneltian ini, telah diwawancarai sebanyak lima orang informan yang terdiri dari pedagang seorang pedagang besar, dua orang pedagang menengah dan dua orang pedagang kecil. Penelitian ini menemukan bahwa pertama, ada tiga bentuk pola hubungan sosial antar pedagang intan yaitu: hubungan-hubungan kerjasama antar pedagang kecil, hubungan-hubungan persaingan antar pedagang besar dan pedagang menengah sesuai dengan posisinya, dia mengembangkan hubungan kerjasama ketika berada dalam pasar intan dan hubungan persaingan ketika bertransaksi di luar pasar intan. Kedua, Masing-masing kelas memliki aturan mainnya sendiri sesuai dengan kapasitas mereka dalam transaksi jual beli intan dan aturan main ini telah menjadi kesadaran bersama antar anggota kelas pedagang sehingga semua anggota kelompok melaksanakan aturan-aturan ini dengan spontan dan tanpa mempertanyakan lagi keabsahannya.