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PENGARUH PENGGUNAAN CITRIC ACID SEBAGAI RETARDER PADA BETON TERHADAP WAKTU PENGIKATAN SEMEN, KELECAKAN BETON SEGAR DAN KUAT TEKAN BETON Purnomo, Joko; Saputro, Ida Nugroho
Indonesian Journal Of Civil Engineering Education Vol 4, No 2 (2018): JURNAL PENDIDIKAN TEKNIK BANGUNAN
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.298 KB) | DOI: 10.20961/ijcee.v4i2.27764

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan citric acidsebagai retarder terhadap waktu ikat awal semen, kelecakan beton segar dan kuat tekan betonserta untuk mengetahui variasi optimal penambahan citric acid yang menghasilkan kuat tekanmaksimal. Penelitian ini dilakukan dengan menggunakan metode kuantitatif eksperimen dananalisa data yang digunakan adalah analisis regresi dengan tujuan untuk memberi gambarantentang pengaruh penggunaan citric acid sebagai retarder terhadap waktu pengikatan awalsemen, kelecakan beton segar dan kuat tekan beton. Penelitian ini dilakukan dengan membuatsampel pada setiap pengujian ikat awal semen, kelecakan beton segar dan kuat tekan betondengan penambahan bahan tambah citric acid dengan variasi penambahan 0,0%, 0,15%,0,30% dan 0,45% dari berat semen. Hasil penelitian menunjukkan bahwa penambahan citricacid berpengaruh terhadap waktu ikat awal semen, kelecakan beton segar, dan kuat tekanbeton. Variasi optimal penambahan citric acid sebagai retarder adalah 0,15% dengan hasilkuat tekan rata – rata 48,46 Mpa.
Nationalism in Danger: A Risk of Implementing Governance in Unequal Power Relation Purnomo, Joko
Jurnal Interaktif Vol 1, No 1 (2010)
Publisher : Fakultas Ilmu Politik dan Ilmu Sosial, Universitas Brawijaya

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Abstract

The idea of governance has successfully gained its popularity in Indonesia. The government, private enterprises and society welcome and embrace the idea of governance as a final solution to maintain development. In this paper, it is argued that the implementation of governance can not guarantee the fulfillment of society’s interest due to the existence of unequal power relation embedded in country’s political environment. The concept of Governance, moreover, can be claimed as an imperialist instrument since this concept has strong interconnection with neo liberal agenda. Indeed, Governance as new imperialism will reduce nationalism. Key words: Governance, Hegemony, Nationalism, Imperialism.
Pendidikan Kecakapan Hidup (PHK) Pada Pembelajaran Matematika Untuk Meningkatkan Kecakapan Personal dan Kecakapan Sosial Serta Prestasi Belajar Siswa SMA Purnomo, Joko
PEDAGOGIA: Jurnal Pendidikan Vol 4, No 1 (2015): Februari
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (475.208 KB) | DOI: 10.21070/pedagogia.v4i1.75

Abstract

Tujuan penelitian meningkatkan kecakapan personal, kecakapan sosial, dan kecakapan akademik serta prestasi belajar siswa melalui pembelajaran yang mengintergasikan pendidikan kecakapan hidup. kecakapan hidup (life skill) adalah kemampuan dasar seseorang seperti kecakapan personal (kecakapan menggali informasi, mengolah informasi, mengambil keputusan, memecahkan masalah) Penelitian ini menggunakan metode Penilitian Tindakan Kelas (PTK), model PTK menggunakan model Arikunto. Teknik pengumpulan data dalam penelitian melalui observasi, instrumen penelitian terdiri dari lembar penilaian pendidikan kecakapan hidup dan lembar tes. Hasil penelitian yang diperoleh menunjukkan kecakapan personal terjadi peningkatan kriteria dari sedang pada siklus I, kriteria baik pada siklus II dan kriteria baik pada siklus III. Kecakapan sosial juga terjadi peningkatan dari kriteria sedang pada siklus I, baik pada siklus II dan sangat baik pada siklus III, sedangkan prestasi belajar siswa yang tuntas pada siklus I ada sebanyak 14 siswa (56%), siklus II siswa yang tuntas sebanyak 20 siswa (80%) dan pada siklus III sebanyak 24 siswa (96%). Peningkatan hasil belajar siswa tiap siklus menunjukan bahwa hasil belajar siswa tergolong sangat bagus. Melalui pendidikan kecakapan hidup mampu meningkatkan kecakapan personal dan kecakapan sosial serta prestasi belajar matematika siswa SMA Negeri 1 Baureno bojonegoro.
Model Log Linear Faktor-Faktor yang Mempengaruhi Perilaku Merokok (Studi Kasus Perokok Di Kelurahan Kandang Limun) Agustina, Dian; Purnomo, Joko
GRADIEN Vol 11, No 1 (2015): (Januari 2015)
Publisher : Universitas Bengkulu

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Abstract

Tujuan penelitian ini adalah untuk melihat model terbaik interaksi dari faktor-faktor yang mempengaruhi perilaku merokok dan untuk mengetahu interaksi dari faktor-faktor penyebab perilaku merokok dengan variabel dependen pada karateristik perokok di kelurahan Kandang Limun. Variabel yang digunakan dalam penelitian ini adalah umur, jenis kelamin, tingkat pendapatan, tingkat penghasilan, kadar nikotin rokok dan kodisi lingkungan sosial. Data didapat dengan cara menyebarkan kuesioner dan dianalisis dengan menggunakan model log linear. Hasil penelitian dengan menggunakan model log linear terdapat interaksi satu arah, dua arah, tiga arah, empat arah dan lima arah masuk kedalam model terbaik.
Pemanfaatan Biji Keriput Kacang Tanah sebagai Benih Rahmianna, Agustina Asri; Purnomo, Joko; Harnowo, Didik
Buletin Iptek Tanaman Pangan Vol 10, No 2 (2015): Desember 2015
Publisher : Puslitbang Tanaman Pangan

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Abstract

State Law No. 12/92 on agricultural systems for food crops stated that good quality seeds is seeds of correct and pure variety with high genetic, physiological and physical qualities, and in accordance with the quality standard of its class. The demand for groundnut seeds were almost entirely fulfilled by informal seed supply, which may come from a traditional system (farmers use their own seeds), buying from agricultural shops that process their own harvested pods into seeds, or buying from informal seed growers. Whilst the certified seeds produced by official seed growers is very limited in amount and supplys only a small portion of the total national seed demand. Under such condition, selection for seed quality is mainly based on the physical seed condition, such as seed size, brightness of seed coat color, and maturity of seeds. In other words, farmers prefer to select sound mature kernels and reject the shriveled kernels. Research results, however, indicated that plants generated from shriveled kernels were not significantly different to those generated from pithy kernels in term of growth and pod yield. Given the high cost and limited stocks of seed during the high planting season, it is advisable seed sorting process is not too tight and the use of wrinkled seeds for planting is prioritized. When there are overstock seeds, it is suggested to keep the sound or pithy seeds or to consume these seeds for food safety issue. This is because research results showed that shriveled seeds are more susceptible to Aspergillus flavus infection and aflatoxin contamination than the pithy seeds.
Kontaminasi Aflatoxin dalam Rantai Distribusi Kacang Tanah di Indonesia Rahmianna, A. A.; Purnomo, Joko
Buletin Iptek Tanaman Pangan Vol 10, No 1 (2015): Juni 2015
Publisher : Puslitbang Tanaman Pangan

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Abstract

The substance is very toxic, which may cause health problem when consumed by human or by animal. of the twelve aflatoxin members, the B1-aflatoxin was reported as the most prevalence in Indonesia, and it was also the most toxic. Therefore, B1-aflatoxin was used as a criterion for the maximum tolerable limit of aflatoxin content in food and feed stuff. Aflatoxin B1 contamination was reported on groundnut grains sold in the retail traditional markets throughout Indonesia. The contaminated grains were noted derived from the nationally produced as well as from the imported ones. The aflatoxin contamination increased as the grain of groundnut reached the final retail markets destination. Contaminated grain processed into various food retained the aflatoxin in a toxic form. The negative effect on health from consuming food contaminated by aflatoxin must be minimized. The government of Indonesia had established food safety regulation regarding aflatoxin contamination, but prevention through the proper cultural practices and post harvest handling of groundnut, were equally important measure.
Development of Anchovy Product and the Certification for Community Empowerment in Saramaake Village, East Halmahera, North Moluccas Budi, Faleh Setia; Purnomo, Joko; Sulistiono, .; Darmanto, .; Arisyono, .
Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 4, No 2 (2018): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1041.877 KB) | DOI: 10.29244/agrokreatif.4.2.143-155

Abstract

Anchovy (Stolephorus spp) is a main target of lift-net fishery, and it is a main income for the fisherman for long time in Saramaake Village, East Halmahera District. Production in a large number with bulky marketing system and a limited processing activity affect a limited economical value for the community of the village. This community empowerment activities had been done for 6 months, from June–December 2017, aimed to develop the anchovy product and the certification. Methods used in this activity were training and mentoring. Objective targets of the activity were fishermen and fisherman’s wife which are members of Common Business Group and cooperation. Some activities have been done for product development (chili sauce packaged anchovy and labelling) and product certification (certification of halal from the Institute Assessment of Food, Drug and Cosmetics Indonesian Council of Ulama and certification of food of Household Industry from Public Health Service Office in District of East Halmahera). Based on the result of training and mentoring, the object community had gained a knowledge and technology related to the fish processing and certification. Certified marine product have a wider market and marketable in some shops in Ternate and Buli.
Pendidikan Kecakapan Hidup (PHK) Pada Pembelajaran Matematika Untuk Meningkatkan Kecakapan Personal dan Kecakapan Sosial Serta Prestasi Belajar Siswa SMA Purnomo, Joko
PEDAGOGIA Vol 4, No 1 (2015): Februari
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (475.208 KB)

Abstract

Tujuan penelitian meningkatkan kecakapan personal, kecakapan sosial, dan kecakapan akademik serta prestasi belajar siswa melalui pembelajaran yang mengintergasikan pendidikan kecakapan hidup. kecakapan hidup (life skill) adalah kemampuan dasar seseorang seperti kecakapan personal (kecakapan menggali informasi, mengolah informasi, mengambil keputusan, memecahkan masalah) Penelitian ini menggunakan metode Penilitian Tindakan Kelas (PTK), model PTK menggunakan model Arikunto. Teknik pengumpulan data dalam penelitian melalui observasi, instrumen penelitian terdiri dari lembar penilaian pendidikan kecakapan hidup dan lembar tes. Hasil penelitian yang diperoleh menunjukkan kecakapan personal terjadi peningkatan kriteria dari sedang pada siklus I, kriteria baik pada siklus II dan kriteria baik pada siklus III. Kecakapan sosial juga terjadi peningkatan dari kriteria sedang pada siklus I, baik pada siklus II dan sangat baik pada siklus III, sedangkan prestasi belajar siswa yang tuntas pada siklus I ada sebanyak 14 siswa (56%), siklus II siswa yang tuntas sebanyak 20 siswa (80%) dan pada siklus III sebanyak 24 siswa (96%). Peningkatan hasil belajar siswa tiap siklus menunjukan bahwa hasil belajar siswa tergolong sangat bagus. Melalui pendidikan kecakapan hidup mampu meningkatkan kecakapan personal dan kecakapan sosial serta prestasi belajar matematika siswa SMA Negeri 1 Baureno bojonegoro.
Pemanfaatan Biji Keriput Kacang Tanah sebagai Benih Rahmianna, Agustina Asri; Purnomo, Joko; Harnowo, Didik
Buletin Iptek Tanaman Pangan Vol 10, No 2 (2015): Desember 2015
Publisher : Puslitbang Tanaman Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.381 KB)

Abstract

State Law No. 12/92 on agricultural systems for food crops stated that good quality seeds is seeds of correct and pure variety with high genetic, physiological and physical qualities, and in accordance with the quality standard of its class. The demand for groundnut seeds were almost entirely fulfilled by informal seed supply, which may come from a traditional system (farmers use their own seeds), buying from agricultural shops that process their own harvested pods into seeds, or buying from informal seed growers. Whilst the certified seeds produced by official seed growers is very limited in amount and supplys only a small portion of the total national seed demand. Under such condition, selection for seed quality is mainly based on the physical seed condition, such as seed size, brightness of seed coat color, and maturity of seeds. In other words, farmers prefer to select sound mature kernels and reject the shriveled kernels. Research results, however, indicated that plants generated from shriveled kernels were not significantly different to those generated from pithy kernels in term of growth and pod yield. Given the high cost and limited stocks of seed during the high planting season, it is advisable seed sorting process is not too tight and the use of wrinkled seeds for planting is prioritized. When there are overstock seeds, it is suggested to keep the sound or pithy seeds or to consume these seeds for food safety issue. This is because research results showed that shriveled seeds are more susceptible to Aspergillus flavus infection and aflatoxin contamination than the pithy seeds.
Simulasi Kunci Elektronis dengan Menggunakan Barcode dan Visual Basic 6.0 untuk Aplikasi Keamanan Rumah Purnomo, Joko; Purbasari, Wika; Dewi, Atika Ratna; Kisworini, Rianti Yunita; Setiawan, Muhammad Akbar
Jurnal Teknologi Informasi, Ilmu Komputer dan Manajemen Vol 1 No 2 (2017)
Publisher : LPPM STMIK Widya Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (116.706 KB)

Abstract

The use of manual key circulating on the market are already not very secure anymore, because manual key has some shortcomings, among others, the key is impractical because it is too heavy to be easily lost, easily stolen and easily copied. Because of the shortage of manual key usage then increasingly unpopular people and return the switch to the use of the key that works in electronic doors. Electronic door key advantages compared with manual key lock that is not easily lost because only with memorized password, operation easier and more smooth, the key could not be stolen.The same as the programming language Basic, Pascal, C and others – other. But the Basic, Pascal and C is intended for operating systems MS-DOS, while Visual Basic is intended for the Windows operating system. The barcode is essentially the order of black and white vertical stripes with different thicknesses, very simple but very useful, with uses to store data-specific data e.g. production code, expiry date, number of identity with easy and cheap, though such technology continues to evolve with the discovery of magnetic media, electronics, Rfid tags, serial eeprom (as in smart cards), slots, scanner, to the CCD and even we can make it your own. Types of barcode is very much a traditional start from i.e.