WorldWideScience

Sample records for bahan sel surya

  1. ANALISA DIFRAKSI SINAR X TiO2 DALAM PENYIAPAN BAHAN SEL SURYA TERSENSITISASI PEWARNA

    Directory of Open Access Journals (Sweden)

    Erna Hastuti

    2012-03-01

    Full Text Available Upaya pengembangan sel surya organic sebagai solusi alternatif krisis energi dunia merupakan hal yang perlu dan penting untuk dilakukan, mengingat sumber energi sel surya yang melimpah dan terbarukan. Salah satu bahan penyusun sel surya adalah semikonduktor TiO2 sebagai transport pembawa muatan. Struktur kristal yang cocok digunakan adalah anatase karena memiliki ukuran pori yang kecil dan bersifat fotoaktif. Pada penelitian ini dikarakterisasi bahan TiO2 yang akan digunakan sebagai bahan semikonduktor dalam sel surya pewarna menggunakan difraksi sinar X dan dianalisa menggunakan program match. Dari hasil penelitian didapatkan bahwa TiO2 memiliki  fase anatase dan ukuran kristalnya 2.6 nm. Ukuran kristal yang berukuran nano dapat memaksimalkan penyerapan pewarna sehingga dapat meningkatkan efisiensi sel surya.

  2. STRATEGI APLIKASI SEL SURYA (PHOTOVOLTAIC CELLS PADA PERUMAHAN DAN BANGUNAN KOMERSIAL

    Directory of Open Access Journals (Sweden)

    Danny Santoso Mintorogo

    2000-01-01

    Full Text Available World Oil Energy crisis in the Europe and West countries that forces them to look for alternative energy in term of innovation of photovoltaics technology. Photovoltaics Energy that is so clean, it causes zero pollution and so simple to apply that you hardly know it sit there, no sound and noise, no smoke, no CO2 and Nitrogen-just pure power. That imaginarily nice communities is here now. The communities, countries, and worlds are Solar. The photovoltaic technology has reached to both the invention of the solar cell materials, and to the application of highly applied solar cells technologies in term of building materials such as roofings, claddings-curtain walls and curtain glasses,as well as architectural atria and canopy. Abstract in Bahasa Indonesia : Krisis energi dunia dan tingginya harga sumber energi (minyak di belahan dunia Eropa dan Barat menyebabkan innovasi dalam pemanfaatan energi alternatif yang tidak menimbulkan polusi udara CO2 maupun radioaktif (nuclear power. Energi Sel Surya adalah jawaban tepat dalam menciptakan suatu lingkungan hidup dalam lingkup perumahan maupun bangunan komersial yang ramah lingkungan, abadi, dan gratis dalam tata surya kita ini. Teknologi Aplikasi Sel Surya terus dikembangkan baik dalam innovasi chip sel surya sendiri maupun aplikasi pada bangunan arsitektur dalam berbagai material bangunan seperti : bahan atap, penutup facade bangunan ( cladding dan curtain wall atau glass , canopy atau atrium. Kata kunci: sel surya, perumahan, bangunan komersial.

  3. SIMULASI PERHITUNGAN REFLEKSI CAHAYA OLEH PERMUKAAN SEL SURYA SILIKON : STUDI PENGARUH PENAMBAHAN LAPISAN ANTI REFLEKSI ZINC OKSIDA (ZnO

    Directory of Open Access Journals (Sweden)

    Andi Suhandi

    2013-05-01

    Full Text Available Telah dilakukan simulasi perhitungan untuk mendapatkan gambaran pengaruh penambahan lapisan anti refleksi ZnO terhadap persen refleksi cahaya oleh permukaan sel surya Silikon. Proses perhitungan dilakukan dengan bantuan software Sigma Plot. Perhitungan menggunakan konsep-konsep dasar fisika terkait optika, diantaranya konsep refleksi dan transmisi gelombang cahaya ketika melewati bidang batas dua medium yang berbeda kerapatan optiknya, konsep polarisasi cahaya, dan konsep anti refleksi. Hasil simulasi perhitungan menunjukkan bahwa persen refleksi cahaya oleh permukaan sel surya silikon nilainya bergantung pada panjang gelombang cahaya datang (. Persen refleksi turun dari dari 38% ketika permukaan sel surya Silikon tidak dilapisi lapisan antirefleksi ZnO menjadi sekitar 15 % setelah permukaan sel surya silikon dilapisi lapisan ZnO dengan ketebalan sekitar 110 nm. Hasil lainnya menunjukkan bahwa persen refleksi cahaya oleh permukaan sel surya Silikon yang telah dilapisi lapisan anti refleksi ZnO nilainya bervariasi bergantung pada ketebalan lapisan anti refleksi yang digunakan. Dalam rentang data simulasi, ketika tebal lapisan anti refleksi ZnO ditingkatkan, persen refleksi cahaya oleh permukaan sel surya silikon nilainya turun, namun ketika ketebalan lapisan anti refleksi ditingkatkan lagi, ternyata persen refleksi cahaya oleh permukaan sel surya naik kembali. Keadaan ini menunjukkan adanya nilai ketebalan lapisan anti refleksi optimum yang menghasilkan persen refleksi cahaya oleh sel surya bernilai minimum. Penurunan persen refleksi cahaya oleh permukaan sel surya akan meningkatkan persen transmisi cahaya menuju lapisan aktif sel surya, yang pada akhirnya akan meningkatkan efisiensi konversi sel surya Silikon.

  4. PENGARUH LAMA PERENDAMAN TERHADAP EFISIENSI SEL SURYA TERSENSITISASI DYE DARI TINTA SOTONG DAN EKSTRAK TEH HITAM

    Directory of Open Access Journals (Sweden)

    M. Choirul Umam

    2013-05-01

    Full Text Available Sel surya merupakan energy alternatif yang sangat berpotensi untuk dikembangkan. Salah satu jenis sel surya adalah sel surya organic yang menggunakan elektrolit sebagai medium transport muatan dan dye sebagai penyerap sinar matahari. Penelitian ini bertujuan untuk mengetahui pengaruh variasi lama perendaman dalam dye hasil ekstraksi teh hitam dan tinta sotong terhadap efisiensi sel surya dan mengetahui efisiensi sel surya tersensitisasi dye dengan menggunakan kaca TCO. Pembuatan Dye-sensitized solar cell (DSSC diawali dengan menyiapkan elektroda yang dibuat dari nanokristal TiO2 yang dilapiskan pada substrat kaca konduktif, yang kemudian direndam dalam dye. Sedangkan elektroda lawan dibuat dengan cara melapiskan grafit pensil pada kaca konduktif. Sel surya dibentuk dengan struktur sandwich dimana dua substrat kaca konduktif mengapit komponen- komponen dari DSSC. Lama perendaman sel surya dalam dye mempengaruhi voltase dan arus keluaran. Daya dan efisiensi maksimum yang dihasilkan menggunakan dye teh hitam sebesar    8,85 x 10-8  W dan 8,5 x 10-3  %. Sedangkan daya dan efisiensi maksimum yang dihasilkan menggunakan dye tinta sotong sebesar 23,4 x 10-8 W dan 23,19 x 10-3 %.

  5. STRUKTUR MORFOLOGI, KOMPOSISI KIMIA DAN RESISTANSI LAPISAN TIO2-CU SEBAGAI LAPISAN AKTIF PADA SEL SURYA FOTOELEKTROKIMIA

    Directory of Open Access Journals (Sweden)

    Rita Prasetyowati

    2013-11-01

    Full Text Available Peningkatan efisiensi sel surya titania terus dikembangkan. Salah satunya adalah memodifikasi titania yang berfungsi sebagai lapisan aktif. Lapisan titania dapat disisipi dengan logam Cu. Penyisipan logam Cu pada TiO2 dilakukan melalui pembuatan nanokomposit TiO2-Cu dengan metode sol-gel. Lapisan TiO2-Cu yang terbentuk dikarakterisasi dengan SEM (Scanning Electron Microscopy untuk mengetahui struktur morfologi permukaan, EDX (Energy dispersive X-ray spectroscopy untuk mengetahui komposisi bahan. Sedangkan resistansi lapisan diukur menggunakan Jembatan Wheatstone. Berdasarkan hasil SEM dapat ditunjukkan bahwa struktur morfologi permukaan lapisan TiO2-Cu tidak berbeda secara signifikan dengan lapisan TiO2, yaitu cukup homogen dan memiliki ukuran butir (grain yang hampir sama. Tetapi dari hasil EDX diperoleh bahwa lapisan TiO2-Cu yaitu lapisan TiO2 yang disisipi logam tembaga mengandung  unsur Ti sebanyak 59,8%, unsur O sebanyak 40,02% dan unsur Cu sebanyak 0,19%. Sedangkan lapisan TiO2 saja mengandung unsur Ti sebanyak 54,25% dan unsur O sebanyak 45,75%. Penyisipan logam tembaga pada lapisan titania dapat menurunkan resistansi listrik lapisan. Nilai resistansi lapisan TiO2 adalah 7,714 kilo ohm. Sedangkan nilai resistansi lapisan TiO2-Cu adalah 6,624 kilo ohm.

  6. PENINGKATAN KUALITAS FILM TIPIS CdTe SEBAGAI ABSORBER SEL SURYA DENGAN MENGGUNAKAN DOPING TEMBAGA (Cu

    Directory of Open Access Journals (Sweden)

    P. Marwoto

    2012-12-01

    Full Text Available Film tipis CdTe dengan doping tembaga (Cu berkonsenterasi 2% telah berhasil ditumbuhkan di atas substrat Indium Tin Oxide (ITO dengan metode dc magnetron sputtering. Penelitian ini dilakukan untuk mengetahui pengaruh doping Cu(2% terhadap struktur morfologi, struktur kristal, fotoluminisensi dan resistivitas listrik film CdTe. Citra morfologi Scanning Electron Microscopy (SEM dan hasil analisis struktur dengan X-Ray Diffraction (XRD menunjukkan bahwa film CdTe:Cu(2% mempunyai citra permukaan dan struktur kristal yang lebih sempurna dibandingkan film CdTe tanpa doping. Hasil analisis spektrometer fotoluminisensi menunjukkan bahwa film CdTe dan CdTe(2% mempunyai puncak fotoluminisensi pada tiga panjang gelombang yang identik yaitu 685 nm (1,81 eV, 725 nm (1,71 eV dan 740 nm (1,67 eV. Film CdTe dengan doping Cu(2% memiliki intensitas puncak fotoluminisensi yang lebih tajam pada pita energi 1,81 eV dibandingkan dengan film CdTe tanpa doping. Pengukuran arus dan tegangan (I-V menunjukkan bahwa pemberian doping Cu(2% dapat menurunkan resistivitas film dari 8,40x109 Ωcm menjadi 6,92x105 Ωcm. Sebagai absorber sel surya, kualitas film tipis CdTe telah berhasil ditingkatkan dengan pemberian doping Cu(2%.CdTe:Cu(2% thin film has been successfully grown on Indium Tin Oxide (ITO substrates by using dc magnetron sputtering. This study was carried out in order to investigate the effect of Cu(2% doping on the morphologycal structure, crystal structure, photoluminesence, and resistivity of CdTe thin film. Scanning Electron Microscopy (SEM  images and X-Ray Diffraction (XRD results showed that CdTe:Cu(2% thin film has morphologycal and crystal structures more perfect than undoped CdTe film. Photoluminesence spectroscopy results showed that CdTe and CdTe:Cu(2% thin films have luminesence peak at three identical wevelength regions i.e. 685 nm (1.81 eV, 725 nm (1.71 eV and 740 nm (1.67 eV however CdTe:Cu(2% film shows sharper photoluminescence peak at band

  7. TENAGA SURYA DAN ARSITEKTUR: SUATU ANALISIS LINGKUNGAN DAN PERANCANGAN

    Directory of Open Access Journals (Sweden)

    Tri Harso Karyono

    2003-01-01

    Full Text Available This paper discusses the potential use of solar energy in building as an alternative solution of energy resources to reduce the negative impact in burning fossil fuels to the environment. It higlights the positive aspects in environment by generating solar energy and also discusses the aesthetical values in employing solar panels on buildings. Abstract in Bahasa Indonesia : Isue mengenai pemanasan bumi yang diakibatkan oleh produksi gas karbon dioksida sebagai akibat pembakaran bahan bakar minyak (minyak bumi, batu bara, gas alam memaksa ilmuwan, pakar energi, akhli lingkungan, serta pihak-pihak lain yang terkait untuk ikut memikirkan penggunaan energi alternatif yang aman. Tenaga nuklir yang tidak menghasilkan gas buang semacam karbon dioksida, ternyata bukan merupakan solusi energi alternatif yang baik karena meninggalkan sampah radioaktif yang belum ada solusi pembuangan yang diangap aman untuk masa yang akan datang. Tenaga surya, yang umumnya sudah digunakan secara tradisional sejak ratusan abad yang silam, perlu mendapat perhatian. Pemanfaatan tenaga surya baik secara pasif maupun aktif bagi bangunan perlu mendapat perhatian dari para arsitek. Pemanfaatan tenaga surya secara aktif, dimana tenaga surya dikonversikan terlebih dahulu menjadi tenaga listrik dengan solar sel, seyogyanya tidak berdiri sendiri, perlu diintegrasikan dengan aplikasi perancangan secara pasif. Perancangan secara aktif bertujuan untuk mengurangi beban listrik yang berasal dari minyak bumi - secara langsung mengurangi jumlah gas karbon dioksida yang dibuang ke udara, sedangkan perancangan pasif bertujuan untuk mengurangi beban penggunaan energi listrik - yang berasal dari sumber listrik apapun - di dalam bangunan. Makalah ini membahas isue yang diutarakan diatas, dimana pada akhirnya memberikan contoh dari suatu karya arsitektur yang dianggap berhasil dalam mengaplikasikan strategi perancangan secara aktif (menggunakan solar sel serta tidak meninggalkan sterategi

  8. Pengaruh Penambahan Karbon terhadap Sifat Mekanik dan Konduktivitas Listrik Komposit Karbon/Epoksi sebagai Pelat Bipolar Polimer Elektrolit Membran Sel Bahan Bakar (Polymer Exchange Membran(PEMFC

    Directory of Open Access Journals (Sweden)

    Ara Gradiniar Rizkyta

    2013-03-01

    Full Text Available Sel bahan bakar merupakan sel elektrokimia yang mampu mengkonversi bahan bakar menjadi energi listrik. Lebih dari 70% dari total berat dan 60%  biaya dalam  fuel cell berupa pelat bipolar. Maka dibutuhkan pemilihan bahan yang sesuai untuk mereduksi berat, volume dan biaya  pada sel bahan bakar. Penelitian ini bertujuan untuk mengetahui pengaruh karbon terhadap sifat mekanik dan konduktivitas listrik komposit karbon/epoksi. Matriks yang digunakan adalah epoksi dengan hardener poliamino amid dengan  rasio pencampuran 20 dan 80% poliamino amid. Filler yang digunakan adalah karbon dengan kadar karbon 20, 40, 60 dan 80%.  Bahan campuran dimatangkan dalam furnace pada temperatur 50, 100, 150, 200, 240oC selama satu jam. Pengujian yang dilakukan yaitu FT-IR, tarik, SEM, TGA dan konduktivitas listrik. Hasil pengujian menunjukkan penambahan karbon  dapat meningkatkan Modulus Young tetapi menurunkan sifat tarik dan elongasi. Kekuatan tarik epoksi tertinggi adalah 61 MPa, sedangkan pada 20% karbon 18,9 MPa. Stabilitas thermal meningkat dengan penambahan karbon, data 60% karbon menunjukkan  berat sisa pada 800⁰ C senilai 63%. Penambahan karbon juga dapat menaikkan konduktivitas listrik. Data tertinggi diperoleh pada komposisi 80% karbon yaitu 424,8 S.Cm-1

  9. Portable Battery Charger Berbasis Sel Surya

    OpenAIRE

    Budhi Anto; Edy Hamdani; Rizki Abdullah

    2014-01-01

    A type of solar battery charger is introduced in this paper. This equipment functions as a medium size rechargeable battery that is needed to move culinary merchants and coastal fishermen living in area which is not supplied by electrical networks. The equipment consists of solar module mounted onto portable mechanical construction, a 12-V 7.5-Ah lead acid battery and charge controller. Solar module charges the battery through charge controller and then the battery can be discharged to power ...

  10. Portable Battery Charger Berbasis Sel Surya

    Directory of Open Access Journals (Sweden)

    Budhi Anto

    2014-04-01

    Full Text Available A type of solar battery charger is introduced in this paper. This equipment functions as a medium size rechargeable battery that is needed to move culinary merchants and coastal fishermen living in area which is not supplied by electrical networks. The equipment consists of solar module mounted onto portable mechanical construction, a 12-V 7.5-Ah lead acid battery and charge controller. Solar module charges the battery through charge controller and then the battery can be discharged to power on electric lamps for lightening culinary wagon or fisherman’s boat at night. Charge controller charges the battery with float charging which is implemented by maintaining 13.5 Volt between battery terminals and limiting the charging current to 1.5 Amperes. Charge controller circuit is based on adjustable linear voltage regulator LM338. The battery is of sealed lead acid type. This type of battery is maintenance free and more hygiene than other types of lead acid battery. The field experiment of charging the baterry of 50% residual capacity from 8 am to 4 pm under sunny weather shows that the solar module has charged the battery to its full capacity under battery safe charging conditions.Keywords: portable solar battery charger, float charging, LM338

  11. PENGEMBANGAN SIMULATOR REAL-TIME UNTUK PELACAK TITIK MAKSIMUM PANEL SURYA BERBASIS SISTEM CERDAS

    OpenAIRE

    Syafaruddin; Suyuti, Ansar; Zaenab; Tahir, Zulkifli

    2013-01-01

    Dalam bidang aplikasi sistem photovoltaik, terdapat tantangan yang sangat krusial berkaitan dengan peningkatan efisiensi sistem photovoltaik dan pengembangan keandalan sistem kontrol dalam pembangkitan listrik yang berbasis energi surya. Secara umum, terdapat dua cara peningkatan efisiensi pembangkitan energi listrik sistem photovoltaik. Yang pertama adalah pengembangan material penyusun solar sel yang mempunyai tingkatan efisiensi konversi energi yang tinggi sekaligus dengan biaya fabrikasi ...

  12. PERBANDINGAN UNJUK KERJA ANTARA PANEL SEL SURYA BERPENJEJAK DENGAN PANEL SEL SURYA DIAM

    OpenAIRE

    Syafaruddin Ch

    2010-01-01

    The ability to produce electrical energy at Solar Power Plant  is highly dependent on the magnitude and duration of sun exposure on the solar cell panels. The movement of the sun from east to west that periodicity in every day is a problem at  the  optimization generation of electricity at  Solar Power Plant   if using solar panel that motionless. This is because the solar cell panel can not catch the maximum sun exposure. To solve the above problem then designed a solar cell panel  tracker...

  13. KOLEKTOR SURYA PRISMATIK

    Directory of Open Access Journals (Sweden)

    James Laeyadi

    2000-01-01

    Full Text Available Solar collector is the essential item of equipment which transforms solar radiation energy to some other useful energy form, for example as the water heater. One of the shape solar collector, is prismatic which have ability to receive solar radiation intensity from all the sun's position, so that using solar energy as water heater can more effective. Solar collector can absorb solar radiation intensity and convert it to useful calor for heating the water inside the pipes of the collector, so the temperature of the water is rise and natural convection is happen by the basic of thermosiphon because effect of mass density fluid difference. From the experiment is found the best position to locate the collector which can produce optimal efficiency are 15 degrre from east to north. Abstract in Bahasa Indonesia : Kolektor surya merupakan suatu bagian dari peralatan yang dibutuhkan untuk mengubah energi radiasi matahari ke bentuk energi panas untuk berbagai keperluan, misalnya sebagai pemanas air. Salah satu bentuk dari kolektor surya adalah bentuk prisma yang memiliki kemampuan untuk menerima intensitas radiasi matahari dari segala posisi matahari, sehingga diharapkan pemanfaatan energi tersebut sebagai pemanas air dapat lebih efektif. Kolektor surya akan menyerap energi dari radiasi matahari dan mengkonversikannya menjadi panas yang berguna untuk memanaskan air di dalam pipa-pipa kolektor, sehingga suhu air akan meningkat dan terjadi konveksi alami berdasarkan efek termosipon karena adanya perbedaan masa jenis fluida. Dari percobaan didapatkan bahwa posisi terbaik dari kolektor yang menghasilkan efisiensi yang optimal dengan menempatkan kolektor 15° dari arah timur ke utara. Kata kunci: Pemanas air tenaga surya

  14. PERSPEKTIF ARSITEKTUR SURYA DI INDONESIA

    OpenAIRE

    Jimmy Priatman

    2000-01-01

    Solar energy is a prospective alternative resource due to its existence as a non-polluting source of renewable energy. The potency of solar energy in Indonesia at the belt of equator enables its usage in buildings directly to fulfill human needs. The integrative implementation of solar technology into building emerges specific challenges in architectural design and evolves a new architectural approach which is called "solar architecture". Abstract in Bahasa Indonesia : Energi surya merupakan ...

  15. Rancang Bangun Sistem Tracking Panel Surya Berbasis Mikrokontroler Arduino

    Directory of Open Access Journals (Sweden)

    Benny Prabawa

    2015-10-01

    Full Text Available ABSTRAK Rancang bangun sistem tracking panel surya berbasis mikrokontroler arduino merupakan sebuah alat yang digunakan untuk mengikuti arah pergerakkan matahari setiap jamnya, mulai dari terbit hingga terbenam. Sistem tracking panel surya ini akan mendeteksi setting waktu yang diinput oleh RTC (Real Time Clock. Pembuatan sistem ini dibagi menjadi dua bagian yaitu pertama adalah perancangan perangkat keras (hardware yang terdiri dari perancangan perangkat elektronika dan perancangan perangkat mekanik. Kedua adalah perancangan perangkat lunak (software. Pemrograman sistem tracking menggunakan software arduino. Panel surya digerakkan dengan menggunakan motor servo yang bergerak sesuai input waktu yang diberikan oleh RTC. Pergerakkan panel surya diatur setiap jam dengan sudut yang telah diuji, sehingga posisi panel surya selalu tegak lurus dengan arah datangnya cahaya matahari. Hasil dari rancang bangun sistem tracking panel surya berbasis mikrokontroler arduino menunjukkan bahwa alat yang dirancang sudah dapat mengikuti pergerakkan matahari berdasarkan waktu. Kata Kunci : Panel Surya, Motor Servo, RTC (Real Time Clock, Mikrokontroler Arduino ATMega 328.

  16. Bahan-Bahan Pembentuk Dentin Sekunder Dalam Bidang Kedokteran Gigi

    OpenAIRE

    Ahmad Fauzi M.

    2008-01-01

    Sepanjang hidup, selama pulpa masih vital, dentin sekunder terbentuk secara teratur pada tepi pulpa, hal ini merupakan fungsi formatif pulpa yaitu jaringan pulpa mampu mengadakan reparasi dalam menanggulangi cedera yang diterima. Dentin sekunder yang dibentuk berfungsi dalam hal pertahanan diri terhadap efek atrisi, karies gigi, trauma, dan mengurangi masuknya iritan. Bahan-bahan pembentuk dentin sekunder dapat digunakan pada keadaan dimana jaringan pulpa tidak mampu lagi mengadakan repa...

  17. Perancangan dan Pembuatan Kapal Wisata dengan Motor Generator Listrik Tenaga Surya Sebagai Energi Alternatif Penggerak Propeler

    Directory of Open Access Journals (Sweden)

    Sudiyono Sudiyono

    2008-01-01

    dan sekaligus pembuatan kapal dengan batasan: kapal wisata dengan penumpang 2 orang dan 1 nahkoda denagan ukuran Loa: 3,48 m, Lpp: 2,9 m, B: 1,38 m, T: 0,27 m, v: 3 Knot, dan waktu pengisian baterai dari solar sell 3,3 jam pada kondisi baterai kosong sampai penuh Kata kunci: Perancangan kapal, tenaga surya, sel surya (solar cell

  18. Perbandingan antara Bahan Cetak Silikon pada Bahan Cetak Zinc Oxide Eugenol Pasta pada Jaringan Lunak Palatum

    Directory of Open Access Journals (Sweden)

    Chaidar Masulili

    2015-11-01

    Full Text Available Untuk mendapatkan suatu detil pencetakan dipengaruhi oleh beberapa faktor seperti, viskositas, kebasahan, cara pengangan bahan cetak dan kemampuan bahan cetak untuk mengalir di atas jaringan lunak. Petunjuk anatomi palatum yaitu sutura palatum median, rugae dan papilla incisive dapat dipakai untuk mendeteksi hasil cetakan.Dalam penelitian ini dilakukan pencetakan dari 15 model cetakan paatu yang dicetak dengan bahan cetak silikon, dan 15 model cetakan palatum yang dicetak dengan bahan pasta zinc oxide eugenol, kemudian dievaluasi dengan menentukan jumlah skore detil jaringan dari masing-masing kelompok bahan cetak ini. Walaupun terlihat adanya perbedaan reproduksi detil, dari hasil uji statistik tidak menunjukkan adanya perbedaan yang bermakna antara hasil reproduksi detil dari kedua bahan cetak tersebut. Kenyataan yang bertentangan dapat disebabkan sifat kebasahan jaringan, kebasahan bahan cetak, adanya perbedaan efek penipisan karena sobekan, jumlah dan ukuran partikel bahan pengisi dan kompatibilitas gips dengan bahan cetak.

  19. STRATEGI APLIKASI SEL SURYA (PHOTOVOLTAIC CELLS) PADA PERUMAHAN DAN BANGUNAN KOMERSIAL

    OpenAIRE

    Danny Santoso Mintorogo

    2000-01-01

    World Oil Energy crisis in the Europe and West countries that forces them to look for alternative energy in term of innovation of photovoltaics technology. Photovoltaics Energy that is so clean, it causes zero pollution and so simple to apply that you hardly know it sit there, no sound and noise, no smoke, no CO2 and Nitrogen-just pure power. That imaginarily nice communities is here now. The communities, countries, and worlds are Solar. The photovoltaic technology has reached to both the inv...

  20. PENINGKATAN KUALITAS FILM TIPIS CdTe SEBAGAI ABSORBER SEL SURYA DENGAN MENGGUNAKAN DOPING TEMBAGA (Cu)

    OpenAIRE

    P. Marwoto; N.M. Darmaputra; Sugianto -; Othaman, Z.; E. Wibowo; S.Y. Astuti

    2012-01-01

    Film tipis CdTe dengan doping tembaga (Cu) berkonsenterasi 2% telah berhasil ditumbuhkan di atas substrat Indium Tin Oxide (ITO) dengan metode dc magnetron sputtering. Penelitian ini dilakukan untuk mengetahui pengaruh doping Cu(2%) terhadap struktur morfologi, struktur kristal, fotoluminisensi dan resistivitas listrik film CdTe. Citra morfologi Scanning Electron Microscopy (SEM) dan hasil analisis struktur dengan X-Ray Diffraction (XRD) menunjukkan bahwa film CdTe:Cu(2%) mempunyai citra perm...

  1. Pemilihan Bahan Alloy Untuk Konstruksi Gigitiruan

    OpenAIRE

    Medila Dahlan

    2008-01-01

    Pada kedokteran gigi bahan alloy sangat banyak digunakan dalam segala bidang. Dalam pembuatan konstruksi gigitiman biasanya digunakan alloy emas, alloy kobalt kromium, alloy nikei kromium dan alloy stainless steel sebagai komponen gigitiman kerangka logam serta pembuatan mahkota dan jembatan. Pemilihan bahan alloy dapat dilakukan berdasarkan sifat yang dimiiiki oleh masing-masing bahan alloy sehingga akan didapat hasil konstmksi gigitiruan yang memuaskan. Pada pemakaiannya didaiam mulut...

  2. Respon inflamasi pulpa gigi tikus Sprague Dawley setelah aplikasi bahan etsa ethylene diamine tetraacetic acid 19% dan asam fosfat 37%

    Directory of Open Access Journals (Sweden)

    Nadie Fatimatuzzahro

    2013-12-01

    inflamasi berfungsi untuk menghilangkan patogen, sel-sel atau jaringan yang rusak dan menginisiasi perbaikan. Netrofil dan makrofag adalah sel fagosit yang merupakan garis pertama pertahanan tubuh. Tujuan: Penelitian ini bertujuan untuk meneliti efek EDTA 19% dan asam fosfat 37% sebagai bahan etsa terhadap respon inflamasi pada pulpa gigi. Metode: Empat puluh lima ekor tikus Sprague Dawley jantan dibagi menjadi 3 kelompok. Permukaan oklusal gigi molar satu rahang atas dipreparasi menggunakan diamond round bur. Pada kelompok I kavitas diaplikasikan EDTA 19%, kelompok II diaplikasikan asam fosfat 37% dan kelompok III diaplikasikan akuades. Hewan coba dikorbankan pada hari ke-1, 3, 5, 7 dan 14 setelah aplikasi bahan etsa (n=3. Spesimen diproses secara histologis dan dicat dengan hematoksilin eosin. Hasil: Hasil ANOVA menunjukkan perbedaan yang bermakna (p<0,05 antar kelompok perlakuan, mengindikasikan bahwa aplikasi bahan etsa menyebabkan infiltrasi sel inflamasi pada pulpa, baik netrofil, makrofag dan limfosit. Hasil uji Tuckey HSD menunjukkan bahwa asam fosfat 37% menstimulasi infiltrasi sel netrofil, makrofag dan limfosit signifikan (p<0,05 lebih banyak dibanding EDTA 19%. Simpulan: Penelitian ini menunjukkan bahwa asam fosfat 37% menyebabkan infiltrasi sel inflamasi yang lebih banyak dibanding EDTA 19%.

  3. Manajemen Energi Di Rumah Sakit Surya Husadha Denpasar

    OpenAIRE

    I Putu Gde Weda Setyawan; Rukmi Sari Hartati; INS Kumara

    2012-01-01

    Rumah Sakit Surya Husadha Denpasar merupakan rumah sakit berstandar internasional dengan tingkat hunian kamar pada tahun 2011 cukup tinggi sekitar 75%.Yang berdampak pada tingkat pemakaian energi listrik. Tingkat pemakaian energi listrikrumah sakit tiap bulan rata-rata sebesar 123,071 kWh, diperuntukan pengoperasian AC sebanyak 43%, peralatan medis 29%, lampu 13%, elektronik 11% dan lainnya 4%. Dalam hal ini konservasi energi yang dilakukan difokuskan pada AC dan lampu karena hal tersebut mem...

  4. WebSelF

    DEFF Research Database (Denmark)

    Thomsen, Jakob Grauenkjær; Ernst, Erik; Brabrand, Claus;

    2012-01-01

    We present WebSelF, a framework for web scraping which models the process of web scraping and decomposes it into four conceptually independent, reusable, and composable constituents. We have validated our framework through a full parameterized implementation that is flexible enough to capture...... previous work on web scraping. We conducted an experiment that evaluated several qualitatively different web scraping constituents (including previous work and combinations hereof) on about 11,000 HTML pages on daily versions of 17 web sites over a period of more than one year. Our framework solves three...... concrete problems with current web scraping and our experimental results indicate that composition of previous and our new techniques achieve a higher degree of accuracy, precision and specificity than existing techniques alone....

  5. Kecernaan Bahan Kering dan Bahan Organik Ransum Komplit dengan Kandungan Protein Berbeda Pada Kambing Marica Jantan

    OpenAIRE

    Basri

    2014-01-01

    Basri (I 211 09 279). Kecernaan Bahan Kering dan Bahan Organik Ransum Komplit Dengan Kandungan Protein Berbeda Pada Kambing Marica Jantan. (Dibawah bimbingan Prof. Dr. Ir. Asmuddin Natsir, M.Sc sebagai Pembimbing Utama dan Ir. Muhammad Zain Mide, MS sebagai Pembimbing Anggota). ABSTRAK Bentuk ransum serta ketersediaan dan keseimbangan nutrisi dalam ransum, misalnya pada ransum komplit, akan berpengaruh terhadap pemanfaatan nutrisi ...

  6. Resin adhesif Sebagai Bahan Kaping Pulpa Secara Langsung

    OpenAIRE

    Julitha Dewi

    2008-01-01

    Penggunaan Kalsium Hidroksida sebagai bahan kaping pulpa secara langsung telah terbukti dapat menyebabkan timbulnya celah mikro sehingga mengakibatkan kegagalan perawalan. Berdasarkan beberapa penelitian, bahan resin adhesi yang dapat digunakan sebagai bahan kaping pulpa secara langsung adalah yang terdiri dari kombinasi Polyethylene Glycidyl Methacrylate (PEGDMA), Glutaraldehid 5% dan Bisphenol-Glycidyl Methacrylate (13is-GMA), kombinasi 4-Methacryloxyethyl Trimelliatate Anhydride (4-META),...

  7. KERACUNAN BAHAN KIMIA BERACUN DI RUMAH TANGGA DAN PENANGGULANGANNYA

    Directory of Open Access Journals (Sweden)

    Satmoko Satmoko

    2012-10-01

    Full Text Available Pada umumnya semua bahan kimia merupakan racun, termasuk obat-obatan. Bahan kimia beracun di dalam rumah setiap saat dapat mengancam keselamatan kita, terutama anak-anak.Bahan bahan kimia yang sering digunakan dan, disimpan di rumah tangga adalah sangat beragam. Hal ini perlu diperhatikan oleh masyarakat umum karena bahan kimia tersebut dapat membahayakan anak-anak, khususnya balita atau bahkan orang dewasa apabila dalam pelabelan tidak jelas atau memindahkan wadah asli bahan kimia ke wadah lain tanpa diberikan keterangan atau label.Bahan kimia yang sering disimpan di rumah tangga adalah antara lain, spiritus (metil alkohol, asam cuka, air aki, aseton (penghapus cat kuku, bensin, pestisida, deterjen, karnper, kaporit, karbol, minyak tanah, terpentin, oli, obat obatan (boorwater, asetosal, obat-obatan penurun panas, barbiturat, mereurochrom, dan lain sebagainya.  

  8. Karsinoma Sel Basal Pada Wajah

    OpenAIRE

    Hastuti

    2008-01-01

    Karsinoma sel basal merupakan tumor ganas pada lapisan epidermis kulit yang paling umum dijumpai. Lokasi tumor iui paling banyak pada wajah dibandingkan anggota tubuh lainnya. Etiologi tumor iui diduga berhubungan dengan cahaya matahari yang mengandung sinar ultraviolet yang karsinogenik. Klasifikasi tumor ini dibagi berdasarkan gambaran kliuis dan histopatologisnya. Diagnosa tumor ini dapat ditegakkan dengan pemeriksaan k1inis dan histologis, pemeriksaan radiologis jarang digunakan. Diag...

  9. PENGEMBANGAN BAHAN AJAR BIOLOGI SEL PADA PROGRAM STUDI PENDIDIKAN BIOLOGI UIN ALAUDDIN MAKASSAR

    OpenAIRE

    Muriati, St

    2015-01-01

    Learning in UIN Alauddin is still limited knowledge to students, while, one mission to improve the quality of educators Biology in terms of belief, moral and scientific attitudes have not been implemented. This is caused by a lack of learning resources that connects Biology Science and its relation to scientific Qur'an. Cell Biology as subjects that reveal about the phenomenon of the smallest unit of life, it can be studied with scientific Qur'an. Therefore, it is necessary to develop teachin...

  10. BATA LEMPUNG BAHAN BANGUNAN DINDING ALTERNATIF

    Directory of Open Access Journals (Sweden)

    Vincentius Totok Noerwasito

    2001-01-01

    Full Text Available "Bata lempung" is block of wall material, main basic material is sols contains 50-60% clay, pressed and molded, without combusted, used after 28 days and production doesn't depend climates. "Bata lempung" can used as bearing wall or curtain wall, exposed and in low-cost housing, exclusive house and real estate. Resultants of research "Bata lempung" used sols from Pandaan Jawa-Timur are resistance compression 60 -70 kg/cm2, waterproofing and cheaper than brick if produced in site of project. "Bata lemping" are material saving energy, without pollution, efficient, structural and art material. Abstract in Bahasa Indonesia : "Bata lempung" adalah bahan bangunan dinding berupa blok terbuat dari tanah "lempung" dengan kandungan 50-60% Clay, dicetak dengan pemadatan, pengeringan tanpa dibakar, dipergunakan setelah berumur 28 hari. Karena dicetak proses pembuatan tidak tergantung pada cuaca. Aplikasi "bata lempung" adalah sebagai dinding pemikul atau sebagai dinding pengisi, yang dapat diekspose pada dinding rumah murah, rumah mewah atau pada kompleks perumahan real estate. Hasil penelitian dari tanah yang berasal dari Pandaan - Jawa timur menghasilkan blok "bata lempung" dengan kuat tekan 60 -70 kg/cm2, tahan air .dan harga dibawah harga bata merah dipasaran jika diproduksi dilokasi bangunan. "Bata lempung" adalah bahan bangunan yang ramah lingkungan,henat enrgi, tidak meninggalkan banyak sisa blok, merupakan bahan bangunan struktural dan juga bahan bangunan seni. Kata kunci: Bahan bangunan dinding, blok, Clay, Semen, pemadatan, pencetakan, pembakaran, ekspose, natural, modul, kuat tekan, dinding pemikul, dinding pengisi, polusi, hemat energi, material struktural, material seni.

  11. Efektifitas Penambahan Flour Pada Bahan Restorasi Semen Ionomer Kaca

    OpenAIRE

    Dewi Sri Kesumawati

    2008-01-01

    Semen ionomer kaca adalah bahan tumpatan yang dalam penggunaannya dapat mempertahankan atau menggantikan jaringan gigi sebanyak mungkin, membantu terjadinya proses remineralisasi, dan mempunyai estetik yang baik. Bahan restorasi yang biasa digunakan dan dapat melepaskan fluor adalah semen ionomer kaca. Bahan ini sebagai perekat yang mengikat struktur gigi dan melepas fluor sebanyak yang dibutuhkan gigi agar dapat mencegah terjadinya karies. Dentin merupakan lapisan dibawah email, sehingga...

  12. Manajemen Energi Di Rumah Sakit Surya Husadha Denpasar

    Directory of Open Access Journals (Sweden)

    I Putu Gde Weda Setyawan

    2012-12-01

    Full Text Available Rumah Sakit Surya Husadha Denpasar merupakan rumah sakit berstandar internasional dengan tingkat hunian kamar pada tahun 2011 cukup tinggi sekitar 75%.Yang berdampak pada tingkat pemakaian energi listrik. Tingkat pemakaian energi listrikrumah sakit tiap bulan rata-rata sebesar 123,071 kWh, diperuntukan pengoperasian AC sebanyak 43%, peralatan medis 29%, lampu 13%, elektronik 11% dan lainnya 4%. Dalam hal ini konservasi energi yang dilakukan difokuskan pada AC dan lampu karena hal tersebut memungkinkan untuk dilakukan pengontrolan pemakaian, penggantian peralatan dan tidak termasuk kategori peralatan vital seperti halnya peralatan medis. Dari tahapan audit energi diperoleh data bahwa nilai IKE adalah 245,40 kWh/m2/tahun. Sebanyak 37,1% kapasitas AC dan 84,54% kuat pencahayaan telah sesuai dengan pembebanan ruangan dan pedoman pencahayaan rumah sakit. Untuk perancangan manajemen energi, pimpinan rumah sakit belum memiliki acuan penyusunan sehingga perlu dilakukan pemetaan terhadap kebijakan dan sistem, organisasi, motivasi, sistem informasi, promosi dan investasi. Rancangan manajemen energi yang disusun mengacu pada matriks manajemen energi. Hasil matriks manajemen energi menunjukan bahwa manajemen energi rumah sakit belum terkelola dengan baik namun dalam hal penerapan teknologi dan sistem perawatan lampu dan AC dapat dijadikan best practice.

  13. Analisis perilaku dinamik pada sel T CD4+ dan sel T CD8+ terhadap infeksi mikobakterium

    Directory of Open Access Journals (Sweden)

    Alfi Nur Rochmatin

    2014-05-01

    Full Text Available Model matematika pada infeksi mikobakterium tuberkulosis yang berbentuk sistem persamaan diferensial nonlinear orde satu. Penelitian ini telah mengkonstruksi model matematika pada interaksi makrofag, sel T CD4+ dan sel T CD8+ dengan pengaruh usia. Solusi numerik pada model matematika ini dengan menggunakan ODE 45 berbantuan matlab. Analisis kestabilan diamati melalui titik tetap dengan mencari matriks jacobian dan nilai eigen dari titik tetap tersebut, maka dapat diperoleh bahwa semua titik tetap tersebut tidak stabil. Berdasarkan analisis perilaku dinamik pada sel T CD4+ dan sel T CD8+pada usia muda dan usia tua maka akan diperoleh bahwa sel T CD4+dan sel T CD8+ lebih banyak mempengaruhi populasi bakteri mikobakterium tuberkulosis dari pada saat usia muda

  14. Effects of Surya Nadi Pranayama (Right Nostril Breathing on Hematological Parameters

    Directory of Open Access Journals (Sweden)

    Baljinder Singh Bal

    2015-04-01

    Full Text Available To assess the effects of Surya nadi pranayama on hematological parameters. Forty, university level girls of Department of Physical Education (T, Guru Nanak Dev University, Amritsar between the age group of 21-26 years (Mean ± SD: age 22.95 ± 1.796 years, height 5.552 ± 1.974 feet’s, body mass 61.265 ± 4.080 kg volunteered to participate in the study. The subjects from Group-A: Experimental were subjected to a 4-weeks surya nadi pranayama (Right Nostril. Student t test for paired samples was utilized to compare the means of the pre-test and the post-test. No significant differences were found in Hemoglobin (Hb, Total Cholesterol (TC, Low Density Lipoprotein Cholesterol (LDL-Cholesterol, High Density Lipoprotein Cholesterol (HDL-Cholesterol and Triglycerides (TG among University Level Girls.

  15. Kecernaan in vitro bahan kering dan bahan organik jerami jagung yang diinokulasi dengan Trichoderma sp pada lama inkubasi yang berbeda

    OpenAIRE

    GANI K., RASUL

    2013-01-01

    ABSTRAK Tujuan penelitian ini adalah untuk mengetahui kecernaan in vitro bahan kering dan bahan organik jerami jagung yang diinokulasi dengan Trichoderma sp. pada lama inkubasi yang berbeda. Penelitian ini disusun berdasarkan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 3 ulangan yaitu: P0= jerami jagung tanpa inokulasi (kontrol), P1= Jerami jagung + 5% Trichoderma sp. dengan lama waktu inkubasi 1 minggu, P2= Jerami jagung + 5% Trichoderma sp. dengan lama waktu inkubasi 2 minggu, ...

  16. Software Engineering Laboratory (SEL) cleanroom process model

    Science.gov (United States)

    Green, Scott; Basili, Victor; Godfrey, Sally; Mcgarry, Frank; Pajerski, Rose; Waligora, Sharon

    1991-01-01

    The Software Engineering Laboratory (SEL) cleanroom process model is described. The term 'cleanroom' originates in the integrated circuit (IC) production process, where IC's are assembled in dust free 'clean rooms' to prevent the destructive effects of dust. When applying the clean room methodology to the development of software systems, the primary focus is on software defect prevention rather than defect removal. The model is based on data and analysis from previous cleanroom efforts within the SEL and is tailored to serve as a guideline in applying the methodology to future production software efforts. The phases that are part of the process model life cycle from the delivery of requirements to the start of acceptance testing are described. For each defined phase, a set of specific activities is discussed, and the appropriate data flow is described. Pertinent managerial issues, key similarities and differences between the SEL's cleanroom process model and the standard development approach used on SEL projects, and significant lessons learned from prior cleanroom projects are presented. It is intended that the process model described here will be further tailored as additional SEL cleanroom projects are analyzed.

  17. DISAIN TEKNOLOGI SURYA SEBAGAI "FORM-GIVER" PADA ARSITEKTUR Implementasi Bangunan Perumahan di Indonesia

    Directory of Open Access Journals (Sweden)

    Jimmy Priatman

    2001-01-01

    faktor penentu disain sistem surya yang mempengaruhi disain arsitektur yang akan membentuk suatu langgam arsitektur baru yang dinamakan "arsitektur surya". Kata kunci: Disain Teknologi Surya, Arsitektur Surya.

  18. PEMANFAATAN TENAGA ANGIN DAN SURYA SEBAGAI ALAT PEMBANGKIT LISTRIK PADA BAGAN PERAHU

    OpenAIRE

    Ari Wibawa Budi Santosa; Imam Pujo Mulyatno

    2014-01-01

    Tenaga matahari dapat dikonversi langsung menjadi energi listrik dengan menggunakan solar cell atau photovoltaik. Begitu pula energi gerak angin yang dapat dimanfaatkan dengan cara menerapkan angin tersebut ke penampang baling-baling supaya berputar. Putaran inilah yang akan membangkitkan listrik sedemikian rupa sehingga energi listrik tersebut dapat disimpan dalam batere. Pengujian alat pembangkit listrik tenaga angin dan surya pada bagan perahu di laksanakan di perairan utara Demak. Hasilny...

  19. ANALISA DEVINISI KAPAL IKAN PURSE SEINE 109 GT KM. SURYA REDJEKI

    Directory of Open Access Journals (Sweden)

    Ari Wibawa BS

    2012-07-01

    Full Text Available Traditional ship has so many kinds, It can be seen on every beach in Indonesia which has different ship design.this development ship design changes based on the ancestors' experiences and the miths believed by the society. Their belief in technology development is low. Therevore, the existance of education institution and research haven't yet had any role in design development of their ships. In this study, the goal is to analyze the resistance of hullform, stability analysis of hullform ship, and seakeeping performance (having, pitching, rolling of the hullform ship. The ship identification was done for one of MV.Surya Redjeki ships using puersiene. The Data gathered then is used to revew hullform ship by using delfship software. Then,the picture is imported to IGS shape to get the result of resistance, stability, and moving. The result of running any software above is used as basic of counting to know the characteristic of MV. Surya Redeki Ship. Based on the counting and analisation, then, the MV.Surya Redjeki ship has total resistance with maximum running, stability is based on criteria standard IMO, for the highest movement is happen when using the biggest rolling.

  20. Pengaruh Pemberian Bahan Organik Terhadap Penyakit Pada Beberapa Varietas Tanaman Jagung (Zea Mays L) Di Lapangan

    OpenAIRE

    Sinda Maroganda Saragih

    2009-01-01

    SINDA MAROGANDA SARAGI “ Pengaruh Pemberian Bahan Organik terhadap penyakit pada beberapa varietas tanaman jagung ( zea mays L. ) di lapangan” Penelitian ini dilaksanakan di Lahan Pertanian Kampung Susuk dengan ketinggian tempat ± 25 m diatas permukaan laut. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) faktorial yang terdiri dari 2 faktor perlakuan dan 3 ulangan. Faktor 1 perlakuan dengan memberikan Bahan Organik yaitu B0 = tanpa bahan organik, B1 = 3 kg bahan organik ...

  1. Bahan Anti Nyamuk (Mosquito repellent) dari Akar Tuba (Derris elliptica (Roxb.) Benth)

    OpenAIRE

    Sihombing, Miduk

    2012-01-01

    Penggunaan bahan kimia untuk pengendalian serangga dapat berdampak negatif terhadap lingkungan maupun manusia. Pemanfaatan bahan alami yang bersifat racun dan ramah lingkungan merupakan salah satu solusi yang diharapkan dapat dijadikan sebagai bahan alternatif untuk perlindungan terhadap serangan serangga. Salah satu tumbuhan yang dapat dimanfaatkan adalah tumbuhan tuba (Derris elliptica (Roxb.) Benth). Penelitian ini bertujuan untuk mengetahui rendemen ekstraktif akar tuba dan mengevaluasi ...

  2. PENGOLAHAN BIJI MAHONI (Swietenia Macrophylla King) SEBAGAI BAHAN BAKU ALTERNATIF BIODIESEL

    OpenAIRE

    Astrilia Damayanti; Siti Bariroh

    2013-01-01

    Peningkatan kebutuhan minyak bumi yang terus menerus akan mengakibatkan kelangkaan bahan bakar minyak. Sumber energi alternatif yang ramah lingkungan, salah satunya adalah biodiesel. Bahan baku potensial untuk memproduksi biodiesel yang tidak bersaing dengan bahan baku pangan contohnya adalah biji mahoni (swietenia macrophylla king). Tahapan yang diperlukan dalam percobaan biodiesel adalah proses pengambilan minyak biji mahoni dengan proses penyangraian, degumming, dan proses transesterifikas...

  3. RANCANG BANGUN KONVERSI ENERGI SURYA MENJADI ENERGI LISTRIK DENGAN MODEL ELEVATED SOLAR TOWER

    OpenAIRE

    Zainul Hasan, Erika Rani

    2012-01-01

    Konversi energi adalah proses perubahan energi. Alat konversi energi pada penelitian ini memanfaatkan energi matahari untuk diubah menjadi energi kinetik melalui media kolektor. Unit kolektor sebagai media penangkap radiasi matahari terdiri dari beberapa bagian. Diantaranya adalah: Kaca penutup, Penyerap panas (Absorber), dan Kerangka penyangga. Dalam  penelitian  rancang  bangun  konversi  energi  surya  menjadi  energi  listrik  dengan  metode elevated solar tower terdapat 2 tahap peneli...

  4. Estimasi Penghematan Biaya Operasi PLTU dengan Cara Penggantian Bahan Bakar

    Directory of Open Access Journals (Sweden)

    Dedi Suryadi

    2007-01-01

    Full Text Available Per capita electricity consumption is a living standard index in a country. In Indonesia, as number of people and industries are increasing, the need of electricity is also increasing. As a result of the rising world’s price of fossil fuel, PT. PLN (Persero, a local state utility, needs to find a better way to reduce its operational cost, 75% of which is the price of plant’s fuel. One possible solution is to replace liquid fuel (HSD and MFO with LNG or coals. This research aimed at fuel cost comparison between the use of LNG, coals and the liquid fuel in a steam power plant. The research focus on the cost reduction but neglects the actual operational implementation. The results of analysis, based on 51465 kW power and 85% boiler efficiency assumption, showed that the mass rate flow of HSD, MFO, LNG and coal are 13446,95 kg/h, 14328,98 kg/h, 1156,7 kg/h and 29032,52 kg/h respectively. Furthermore, annual fuel cost of HSD, MFO, LNG and coal are 890.73, 530.61, 154.63 and 87,61 billions respectively. The fuel cost saving from the replacement of HSD with LNG and coals are 736.1 and 803.12 billion/year respectively. As comparison, the fuel cost saving from the replacement of MFO with LNG and coals are 375.98 and 443.0 billion/year respectively. Abstract in Bahasa Indonesia: Konsumsi listrik perkapita merupakan indeks standar kehidupan masyarakat suatu negara. Di Indonesia, dengan semakin meningkatnya kegiatan industri dan jumlah penduduknya, maka kebutuhan daya listrik juga mengalami peningkatan. Akibat terjadinya kenaikan harga bahan bakar minyak dunia sekarang ini, PT. PLN (persero sebagai salah satu perusahaan listrik negara harus memikirkan usaha penghematan biaya operasi, dimana 75%nya adalah biaya bahan bakar. Salah satu usaha yang dapat ditempuh PT. PLN (persero adalah dengan penggantian bahan bakar utama PLTU dari bahan bakar minyak (HSD dan MFO menjadi gas alam (LNG atau batubara. Tujuan penelitian ini adalah membandingkan efisiensi

  5. Performansi Kolektor Surya Pemanas Air Dengan Penambahan External Helical Fins Pada Pipa Dengan Variasi Sudut Kemiringan Kolektor

    Directory of Open Access Journals (Sweden)

    Dendi Nugraha

    2015-03-01

    Full Text Available Menipisnya sumber energi fosil mengakibatkan diperlukannya pemanfaatan energi alternatif seperti penggunaan kolektor surya untuk memanaskan air. Salah satu cara meningkatkan efisiensi kolektor adalah dengan menambahkan external helical fins pada pipa. Penelitian ini bertujuan untuk mengetahui bagaimana performansi kolektor surya dengan penambahan sirip berbentuk helical serta mengetahui pengaruh perubahan sudut kemiringan kolektor serta warna kaca penutup. Penelitian ini menggunakan variasi warna kaca penutup yaitu bening dan hitam dimana setiap warna divariasikan sudut kemiringan kolektor surya sebesar 100, 200 dan 300 serta debit diatur konstan sebesar 300 lt/jam. Pengambilan data dilakukan setiap satu jam dari pukul 09.00-15.00 WIB. Dari hasil penelitian ini didapatkan bahwa efisiensi kolektor surya dengan penambahan external helical fins pada pipa terjadi pada saat kaca penutup bening dengan sudut kemiringan kolektor 300 yaitu sebesar 65,81% Pada saat radiasi matahari sebesar 4,177 MJ/m2. Sudut kemiringan 300 merupakan sudut kemiringan paling baik dibanding 100 dan 200 serta penggunaan kaca penutup bening menghasilkan efisiensi yang lebih baik dibanding kaca hitam. Penambahan external helical fin pada pipa dapat meningkatkan efisiensi kolektor jika dibandingkan dengan tanpa penambahan fin.

  6. Efek Penambahan Fluorida Pada Bahan Restorasi Dental Amalgam

    OpenAIRE

    Asmalina Lubis

    2008-01-01

    Fluorida memegang peranan penting dalam pencegahan karies. Penggunaan dan pemakaian fluorida secara sistemik dan secara lokal mempunyai keuntungan terhadap gigi -geligi, yaitu menurunkan frekwensi terjadinya karies. Fluorida dapat ditambahkan pada beberapa produk alloy tertentu, Pada dental amalgam, fluorida khususnya dapat ditambahkan pada bahan restorasi yang mengandung unsur zinc. Penambahan fluorida ini memberikan beberapa keuntungan dan kerugian. Keuntungan dapat dilihat pada gigi ...

  7. Perbandingan sitotoksisitas tiga jenis algyrogel terhadap sel fibroblas (Citotoxicity comparation of three types of algyrogel on fibroblast cells

    Directory of Open Access Journals (Sweden)

    Stefany Elan Saktiyawardani

    2014-09-01

    Full Text Available Background: The prevalence of osteoporosis and bone defects in the world and Indonesia increase each year. Algyrogel is a alginate-based hydrogel material recently very popular used as a bone substitute through injectable bone substitute (IBs method. One of advantages algyrogel is biocompatibility to the body tissues. some natural-based polymer (alginate, chitosan, dan hyaluronat have different biocompatibility. Purpose: The study was aimed to determine the cytotoxicity of three types algyrogel against fibroblast cells. Methods: This study used three types algyrogel, there were algyrogel containing alginate (Alg, a mixture of alginate with chitosan (Alg/Ch, and a mixture of alginate with hyaluronic acid (Alg/Ha. Each type algyrogel was exposed in the Vero cell line of fibroblast with volume 2 μL; 4 μL; 6 μL; 8 μL; 10 μL; 12 μL; 14 μL; 16 μL; 18 μL; and 20 μL respectively. The cytotoxicity performed by MTT method to determine the percentage of cell death. The optical density was measured by an ELIsA plate reader then data was analyzed using ANOVA and probit. Results: The percentage of cell death in all groups of algyrogel have below 30%. LC50 value at Alg was 651.017 mg/mL (21.56%, Alg/Ch was 280.478 mg/mL (20.91%, and Alg/Ha was 1054.094 mg/ mL (17.2%. Conclusion: Alg/Ha has the lowest cytotoxicity on fibroblast cells and may have potential as an osteoconductor-synthetic bone product.Latar belakang: Prevalensi osteoporosis dan cacat tulang di Indonesia maupun dunia semakin meningkat tiap tahunnya. Algyrogel sebagai bahan hidrogel yang berbasis alginat akhir-akhir ini sangat popular digunakan sebagai bahan pengganti tulang melalui metode Injectable Bone substitute. Kelebihan algyrogel antara lain biokompatibel terhadap jaringan tubuh. Beberapa hidrogel berbasis polimer alami (alginat, chitosan, dan hyaluronat memiliki perbedaan biokompatibilitas. Tujuan: studi ini bertujuan meneliti sitotoksisitas tiga jenis algyrogel terhadap sel

  8. Studi Eksperimental Pengaruh Laju Aliran Air Terhadap Efisiensi Thermal pada Kolektor Surya Pemanas Air dengan Penambahan External Helical Fins pada Pipa

    Directory of Open Access Journals (Sweden)

    Sandy Pramirtha

    2015-03-01

    Full Text Available Energi matahari merupakan salah satu sumber energi alternatif untuk menggantikan peran minyak bumi sebagai sumber energi utama. Kolektor surya pemanas air merupakan salah satu contoh pemanfaatan energi surya. Ada beberapa tipe kolektor surya salah satunya adalah  kolektor surya pelat datar, tetapi kolektor surya pelat datar memiliki tingkat efisiensi yang rendah. Salah satu cara untuk meningkatkan efisiensi dari kolektor surya pemanas air pelat datar adalah dengan menambahkan fins pada pipa-pipa yang mengalirkan air. Salah satu bentuk fins yang dapat digunakan adalah helical fins. Pengujian dilakukan dengan variasi debit aliran air yaitu 75 liter/jam, 150 liter/jam, 225 liter/jam dan 300 liter/jam serta variasi warna kaca penutup yaitu warna hitam dan bening. Kolektor surya diletakkan pada sudut kemiringan β = 10o. Pengambilan data dimulai pukul 09.00-15.00 WIB. Setiap satu jam dilakukan pengambilan data berupa temperatur fluida masuk, temperatur fluida keluar, temperatur pelat absorber, temperatur cover glass, temperatur base dan intensitas matahari. Hasil yang didapatkan dari penelitian ini adalah efisiensi rerata kolektor terbesar terjadi pada kolektor dengan kaca penutup bening untuk variasi debit aliran air 300 liter/jam yaitu sebesar 63.06%, energi berguna terbesar terjadi pada kolektor dengan kaca penutup bening untuk variasi debit aliran air 300 liter/jam yaitu sebesar 1.24 MJ, serta temperatur air keluar kolektor terbesar terjadi pada kaca penutup bening dengan variasi debit aliran air 75 liter/jam yaitu sebesar 49 oC. Penambahan helical fins pada pipa tembaga dapat meningkatkan efisiensi kolektor. Kolektor surya dengan helical fins mempunyai efisiensi yang lebih tinggi dibandingkan kolektor tanpa fin maupun annular fins.

  9. PERBANDINGAN KONFIGURASI PIPA PARALEL DAN SERPENTINE TERHADAP UNJUK KERJA KOLEKTOR SURYA PLAT DATAR

    Directory of Open Access Journals (Sweden)

    Rahardjo Tirtoatmodjo

    2000-01-01

    Full Text Available The pipes used to circulate water in a solar collector usually has 'parallel' configuration. The water would absorb more solar energy if it flows slower in the pipes. It could be accomplished by using 'serpentine' configuration. A research on a 'parallel' collector and a 'serpentine' collector was carried on the same time, which were 7 days for one cover glass and the next 7 days for two cover glasses. From the research, it is found that if the water stored in a reservoir tank is to be used in the evening, 'parallel' configuration is more suitable than 'serpentine' configuration. Abstract in Bahasa Indonesia : Pipa sirkulasi yang ada pada kolektor surya umumnya mempunyai konfigurasi 'paralel'. Air akan menerima radiasi matahari lebih banyak jika mengalir lebih lambat dalam pipa sirkulasi. Hal ini dapat dilakukan dengan konfigurasi 'serpentine'. Pengujian kolektor dengan konfigurasi 'paralel' dan 'serpentine' dilakukan secara bersamaan selama 7 hari untuk satu kaca penutup dan 7 hari berikutnya untuk dua kaca penutup. Hasil pengujian menunjukkan konfigurasi 'paralel' lebih baik jika air yang disimpan dalam tanki hendak dipergunakan pada sore hari. Kata kunci : kolektor surya, pipa sirkulasi.

  10. PENGARUH TEBAL PLAT DAN JARAK ANTAR PIPA TERHADAP PERFORMANSI KOLEKTOR SURYA PLAT DATAR

    Directory of Open Access Journals (Sweden)

    Yoe Kiem San

    2001-01-01

    Full Text Available Flat plate solar collector is an equipment to used for water heater. This collector absorb the radiant energy from the sun and convert it to heat in the tubes collector. Parameters which influence the performance this collector are thickness of the plate absorber and distance between the tubes which called collector fin efficiency. From the research it is found that more and more the thickness of the plate absorber and more and more the small distance between of the tubes collector, more and more optimum fin eficiency the collector. Abstract in Bahasa Indonesia : Kolektor surya plat datar merupakan suatu peralatan yang dapat digunakan untuk memanaskan air. Kolektor tersebut menyerap energi radiasi dari matahari dan mengkonversikannya menjadi panas pada pipa-pipa kolektor. Parameter-parameter yang berpengaruh terhadap unjuk kerja kolektor tersebut diantaranya adalah ketebalan plat penyerap dan jarak antar pipa-pipa kolektor yang disebut dengan efisiensi sirip kolektor. Hasil penelitian menunjukkan bahwa semakin tebal plat penyerap dan semakin kecil jarak antar pipa-pipa kolektor, efisiensi sirip dari kolektor semakin optimum. Kata kunci: kolektor surya plat datar, performansi, efisiensi sirip.

  11. Risiko Ancaman Akidah dalam Isu Penciptaan Sel Gamet Manusia

    Directory of Open Access Journals (Sweden)

    Siti Syairah, M.M.

    2012-06-01

    Full Text Available Pembentukan sel gamet adalah satu proses semulajadi yang berlaku secara alami. Sel gamet dihasilkan melalui proses spesifik yang diistilahkan sebagai gametogenesis. Gametogenesis merujuk kepada proses penghasilan kedua-dua sel gamet lelaki dan perempuan. Sel sperma manusia terhasil melalui proses yang dinamakan spermatogenesis, manakala sel ovum pula terhasil daripada satu proses khusus dipanggil oogenesis. Walaupun pada asasnya kewujudan sel-sel gamet ini adalah melalui proses fisiologi normal, namun dengan perkembangan teknologi yang semakin berkembang terutamanya dalam bidang sains perubatan, kini telah wujud beberapa penemuan yang membolehkan sel sperma dan sel ovum ‘dicipta’ di dalam makmal bagi tujuan perubatan dan juga untuk kajian saintifik. Penemuan yang agak mengejutkan ini sebenarnya telah mencetuskan perdebatan hebat di kalangan para pengkaji ilmu. Percanggahan pendapat yang bersandarkan kepada pegangan agama, nilai serta etika kemanusiaan yang berbeza telah mengundang pelbagai reaksi berhubung perkara ini. Artikel ini akan mengupas lebih lanjut mengenai isu-isu permasalahan dan penerimaan teknologi ini berdasarkan kepada penerimaan dari sudut syarak dan akidah Islam.

  12. Analisa Penggunaan Bahan Bakar Bioethanol Dari Batang Padi Sebagai Campuran Pada Bensin

    Directory of Open Access Journals (Sweden)

    Andre Dwiky Kurniawan

    2014-03-01

    Full Text Available Kandungan minyak bumi didunia semakin menipis, karena semakin bertambahnya kebutuhan manusia terhadap penggunaan  minyak bumi sebagai bahan bakar. Dengan kondisi yang semakin menipis ini, cadangan minyak diprediksi hanya cukup untuk beberapa tahun ke depan. Semakin menipisnya kandungan minyak bumi menyebabkan harga bahan bakar melambung tinggi. Indonesia merupakan negara yang mempunyai sumber daya alam yang melimpah.  Banyak kekayaan alam yang terdapat di Indonesia, dimana sektor pertanian merupakan salah satu urat nadi bangsa Indonesia.  Sektor pertanian merupakan sektor yang mempunyai peranan strategis dalam struktur pembangunan perekonomian nasional. Melimpahnya sumber daya alam dan semakin menipisnya kandungan minyak bumi di Indonesia mendorong manusia beralih menggunakan bahan bakar alternative yang ramah lingkungan dan mempunyai jumlah atau stok yang banyak.  Bahan bakar yang berasal dari alam disebut bioethanol.  Salah satu sumber daya alam yang bisa digunakan untuk dijadikan bahan bakar yaitu Batang padi.  Pada saat panen padi para petani hanya mengambil biji atau berasnya saja, sekam dan batang padi hasil panen dibuang begitu saja padahal sekam dan batang padi bisa digunakan untuk membuat bahan bakar alternative yaitu bioethanol. Penelitian ini membahas tentang bagaimana pembuatan bioethanol dari batang padi, kandungan ethanol dalam batang padi, uji performa mesin otto dengan variasi konsentrasi bahan bakar bensin dengan etanol dengan variasi 100% Bensin, 75% Bensin + 25%Etanol, 50% Bensin + 50% Etanol, 25% Bensin + 75% Etanol dan 100% Etanol. Serta dengan variasi pembebanan yaitu dengan menggunakan beban 500, 1000, 1500, 2000,2500 watt. Selain itu juga dilakukan penelitian emisi yang dihasilkan oleh bahan bakar bioethanol. Dari hasil pengujian yang telah dilakukan bahan bakar bioethanol memilki kandungan ethanol sebesar 95% dan hasil uji performa dari mesin otto dengan menggunakan variasi konsentrasi bahan bakar dan variasi

  13. SIFAT MEKANIK BAHAN GESEK REM KOMPOSIT DIPERKUAT SERAT BAMBU

    OpenAIRE

    Sutikno -; S. E. Sukiswo; S. S. Dany

    2012-01-01

    Bahan gesek komposit diperkuat serat bambu untuk kampas rem otomotif dibuat menggunakan mesin pres isostatik panas pada 19oC selama 3 jam. Jumlah serat bambu dan serbuk logam di dalam pencampuran dioptimasi, setiap komposisi komponen lain dibuat tetap, pengaruhnya pada sifat-sifat mekanik dan struktur mikro diselidiki. Serat bambu disini digunakan sebagai pengganti serat asbes yang jumlahnya divariasi antara 2,86-17,14% dari volume total dan fraksi berat masing-masing unsur penyusun ditentuka...

  14. Risiko Operasional Stasiun Pengisian dan Pengangkutan Bulk Elpiji pada PT Surya Artha Chanya

    Directory of Open Access Journals (Sweden)

    Teguh Sriwidadi

    2014-11-01

    Full Text Available PT Surya Artha Chanya is a 3kg LPG refilling service company. In charging process there are some errors and the error certainly raises the risk of loss for the company. To minimize the risk in operations, risk management is attempted. This research is a descriptive study; data collection technique used was interview with internal parties company that could be trusted. Research used Analytical Hierarchy Process method to process the data questionnaire with Expert Choice 11 software which serves to compare and find the most important indicator of the operations. To determine the amount of loss that exceeds the threshold calculation, the Generalized Pareto Distribution method was used. These methods were expected to issue the company's risk of loss can be resolved.

  15. [Occult medicine in the 20th century: pharmacotherapy by Demeter Georgievitz-Weitzer, known as Surya (1873 - 1949)].

    Science.gov (United States)

    Helmstädter, Axel

    2011-01-01

    Demeter Georgievitz-Weitzer (1873-1949), called "Surya", Sanskrit for "sun", was an important representative of medical occultism in the first half of the 20th century. He worked as a journal editor and published a 13-volume book series about occult medicine, mainly written by himself. His hypotheses were closely related to the "Lebensreform" movement around 1900. Regarding diagnostics, he relied on astrology, cheiromancy, and clairvoyance, while therapeutics were dominated by diet and spagyric remedies according to Cesare Mattei (1809-1896) and Carl-Friedrich Zimpel (1801-1879). In his later years, he developed his own healing system, initially comprising eight, later only two preparations. Surya remedies were commercially available until the end of the 20th century, PMID:22822609

  16. PENGGUNAAN BAHAN AJAR DENGAN PENDEKATAN ANDRAGOGI SEBAGAI UPAYA MENINGKATKAN KREATIVITAS DAN HASIL BELAJAR SISWA SMA RSBI

    OpenAIRE

    M. Umriyah; A. Yulianto; N. Hindarto

    2012-01-01

    Andragogi merupakan teori pembelajaran orang dewasa. Konsep pembelajaran orang dewasa merupakan pembelajaran yang berpola non otoriter. Berdasarkan ciri-ciri biologis maupun psikologis sebagian besar siswa SMA telah memasuki usia dewasa, sehingga pendekatan andragogi agaknya lebih sesuai. Penelitian ini merupakan penelitian pengembangan yaitu mengembangkan bahan ajar dengan pendekatan andragogi, bertujuan untuk memperoleh bahan ajar yang dapat meningkatkan kreativitas dan hasil belajar siswa....

  17. VALIDITAS CHEMISTRY HANDOUT SEBAGAI INOVASI BAHAN AJAR STOIKIOMETRI BERSTRATEGI PBS BERVISI SETS

    OpenAIRE

    Ami Korniawati; Ersanghono Kusumo; Endang Susilaningsih

    2016-01-01

    Meningkatkan pencapaian kompetensi yang menjadi indikator dalam kajian mutu pendidikan di Indonesia dapat dilakukan melalui pengadaan bahan ajar kimia yang bemutu dan inovatif. Penelitian ini bertujuan untuk mengembangkan Chemistry Handout berstrategi Problem Based Solving (PBS) bervisi SETS sebagai bahan ajar inovatif dan mengetahui kriteria validitasnya. Pengembangan dilakukan dengan metode penelitian Research and Development model 4D yang dimodifikasi menjadi 3D. Validitas Chemistry Handou...

  18. Pemesinan Ramah lingkungan Bahan Aero-Angkasa Paduan Titanium Menggunakan Pahat Karbida

    OpenAIRE

    Ginting, Armansyah

    2008-01-01

    Hampir enam dekade telah berlalu sejak awal paduan titanium (titanium alloys) digunakan sebagai bahan baku struktur produk industri aeroangkasa (aerospace industries), namun usaha untuk meningkatkan ketermesinan yang rendah (low machinability) bahan ini masih berlanjut hingga hari ini. Sifat ketermesinan yang rendah ini menyebabkan paduan titanium disebut difficult-to-machine material. Penelitian untuk meningkatkan ketermesinan paduan titanium ini bertumpu pada kajian pre...

  19. Analisis Pengaruh Retailing Mix Terhadap Kepuasan Pelanggan Dan Loyalitas Pelanggan Pada Surya Swalayan Jalan Jamin Ginting, Medan

    OpenAIRE

    Asnita, Dian

    2015-01-01

    The growth of the retail industry is rapidly increasing in Indonesia is currently making competition among retail businesses increasingly stringent. Retailers are required to continue to survive and win the competition amongst other business competitors. To attract and retain customers retailers implement various strategies such as by applying the retailing mix (retail mix) which consists of the location, price, merchandise, services, promotions, and store atmosphere. Surya Swalayan is a busi...

  20. ANALISIS PENGARUH GOAL ORIENTATION DAN WORK MOTIVATION TERHADAP WORK ROLE INNOVATION DENGAN SELF-LEADERSHIP SEBAGAI MEDIATOR; STUDI PADA PERUSAHAAN MEDIA (PT. SURYA CITRA TELEVISI

    Directory of Open Access Journals (Sweden)

    Masruroh

    2015-08-01

    Full Text Available This research has an aim to discover an understand the influence of Goal Orientation and Work Motivation against Work Role Innovation through Self-leadership at PT. Surya Citra Televisi. PT. Surya Citra Televisi engaged in TV broadcasting sector. To see the influence of Goal Orientation and Work Motivation against Work Role Innovation through Self-leadership, this research use a quantitative approach where questionaire used to collect data from a total of 150 employees correspondent and the research method used is path analysis. This analysis is used to determine how much influence of variables Goal Orientation and Work Motivation to Work Role Innovation through Self-leadership at PT. Surya Citra Televisi. The result found in this research is Goal Orientation does influence significantly to Work Role Innovation at PT. Surya Citra Televisi. Work Motivation does influence significantly to Work Role Innovation at PT. Surya Citra Televisi. The indirect influence of Goal Orientation and Work Motivation through Self-leadership against Work Role Innovation is weak while Self-leadership shows strong influence if it acts as an independent variable. Bacause of that, Self-leadership will be more accurate if it acts as an independent variable along with Goal Orientation and Work Motivation.

  1. Komposit Laminate Rami Epoksi Sebagai Bahan Alternatif Socket Prosthesis

    Directory of Open Access Journals (Sweden)

    Agustinus P. Irawan

    2009-01-01

    Full Text Available pure plant oil, biofuel, coconut oil, palm oil, jatropha oilSocket is the most important component in a prosthesis making. Performance criteria for prosthetic socket material include strength, durability, minimal weight, comfort, and minimal fabrication cost. This research attempts to analyze the strength of ramie fiber reinforced epoxy laminate composite as an alternative of socket prosthesis. The research based on ASTM D 3039/D 3039M for tensile strength and ASTM D 695 for compressive strength. The ramie fiber used was a continuous fiber 100 % Ne14'S, with Epoxy Resin Bakelite EPR 174 and Epoxy Hardener V-140. The sample test was created using a hand lay-up method. The result of this research is presented in a correlation of finsile strength (st, compression strength (sc, elasticity modulus (E versus fraction volume of fiber (Vf. The result is then being compared with some of the prosthesis material’s strength produced by Otto Bock. The analysis was completed with the mode of the failure observation by using Scanning Electron Microscope (SEM. The result concludes that the ramie fiber reinforced epoxy laminate composite is potentially developed further as a socket prosthesis material on Vf 40 – 50 %. Tensile strength and specific strength that has been generated was higher than that of several materias for socket prosthesis, including fiberglass. The mode of the failure found were a brittle failure on Vf: 10-30%, debonding and delamination on Vf: 40-50%. Abstract in Bahasa Indonesia: Socket merupakan bagian terpenting dalam pembuatan prosthesis. Kriteria bahan socket prosthesis antara lain kekuatan, ketahanan, ringan, kenyamanan dan biaya produksi yang rendah. Penelitian ini bertujuan menganalisis kekuatan komposit laminate berpenguat serat rami epoksi sebagai bahan alternatif socket prosthesis. Pengujian kekuatan mengacu standar ASTM D 3039/D 3039M uji tarik dan ASTM D 695 uji tekan. Serat rami yang digunakan berupa serat kontinyu jenis

  2. PEMANFAATAN ENERGI ALTERNATIF GAS ALAM TERKOMPRESI SEBAGAI BAHAN BAKAR MESIN PENGGERAK KAPAL NELAYAN TRADISIONAL

    Directory of Open Access Journals (Sweden)

    Ari Wibawa Budi S

    2013-04-01

    Full Text Available Mesin Diesel adalah mesin yang paling banyak di gunakan oleh para nelayan tradisional untukopersional penangkapan ikan. Kenikan harga dan tidak stabilnya pasokan BBM akan meresahkanmasyarakat nelayan. Untuk itu harus ada upaya pemanfaatan energi alternatif yang bersumber selain dariBBM dan juga ramah lingkungan. Salah satu energi alternatif adalah energi gas alam (natural gasdiantaranya bahan bakar gas alam terkompresi atau Compressed Natural Gas. Penggunaan bahan CNGpada mesin kapal adalah dengan sistem bahan bakar ganda/Dual Fuel system yaitu system bahan bakaryang menggunakan 2 (dua jenis bahan bakar sekaligus di dalam bekerjanya motor penggerak yaitu BBGCNGdan BBM-Solar melalui penggunaan CNG Conversion kit. Setelah dilakukan pengujianPerbandingan konsumsi bahan bakar pada operasional kapal, Penggunaan solar sebanyak 10 liter dengannilai Rp. 45 ribu, setelah dilakukan konversi pengunaan BBM setara dengan penggunaan 2 liter solar dan6 liter CNG sehingga nelayan dapat menghemat sebanyak Rp. 16.500 dengan asumsi harga CNG yangberlaku saat ini sebesar Rp. 3.250 per liter. Jika semakin tinggi harga minyak solar dan harga CNG tetapatau mengalami penurunan maka efisiensi dan penghematan biaya operasional semakin besar. Penelitianini diharapkan mampu memberikan solusi penggunaan bahan bakar alternatif yang bisa mengurangi biayaopersional nelayan sehingga pendapatan dan kesejahteraan nelayan bisa meningkat

  3. PENGOPTIMALAN HASIL BELAJAR MAHASISWA PADA PERKULIAHAN AUDITING II DENGAN MEMANFAATKAN BAHAN AJAR MULTIMEDIA

    Directory of Open Access Journals (Sweden)

    Maylia Pramono Sari

    2011-06-01

    Full Text Available Pengembangan metode pengajaran auditing adalah pembuatan bahan ajar multimedia. Hasil menunjukkan bahwa mahasiswa jurusan akuntansi memiliki persepsi awal mengenai pengetahuan auditing yang baik dan mengalami peningkatan rata-rata hasil belajar. Selain itu juga terjadi kenaikan keaktivan mahasiswa setelah adanya penerapan model pendekatan bahan ajar multimedia pada mata kuliah auditing II. Penelitian ini juga menggunakan Uji Wilcoxon Rank Test dan hasil menunjukkan bahwa nilai tes sebelum adanya tindakan dan setelah adanya tindakan relatif berbeda. Hal ini berarti model pendekatan penalaran dan sistem pada mata kuliah auditing efektif dalam meningkatkan prestasi belajar. Kata Kunci : Auditing, Bahan Ajar Multimedia, Hasil Belajar

  4. PEMANFAATAN TENAGA ANGIN DAN SURYA SEBAGAI ALAT PEMBANGKIT LISTRIK PADA BAGAN PERAHU

    Directory of Open Access Journals (Sweden)

    Ari Wibawa Budi Santosa

    2014-10-01

    Full Text Available Tenaga matahari dapat dikonversi langsung menjadi energi listrik dengan menggunakan solar cell atau photovoltaik. Begitu pula energi gerak angin yang dapat dimanfaatkan dengan cara menerapkan angin tersebut ke penampang baling-baling supaya berputar. Putaran inilah yang akan membangkitkan listrik sedemikian rupa sehingga energi listrik tersebut dapat disimpan dalam batere. Pengujian alat pembangkit listrik tenaga angin dan surya pada bagan perahu di laksanakan di perairan utara Demak. Hasilnya  Solar cell lebih responsif mengisi batere/accu dibandingkan Wind turbine karena keberadaan cahaya matahari relatif lebih kontinyu dan stabil dibandingkan angin. Persentase keberhasilan pengisian Wind turbine dalam ± 12 jam @ 69%, hal ini dapat terjadi karena keberadaan angin yang tidak terus menerus dan kecepatan angin yang tidak konstan. Batere/accu setelah pengisian oleh solar cell selama 12 jam efektif mampu menghasilkan listrik sebesar 650 Watt-jam. Batere/accu setelah pengisian oleh Wind turbine selama 8,65 jam efektif mampu menghasilkan listrik sebesar 44,82 Watt-jam.  Jika dilihat segi sosial ekonomi dengan energi alternatif, masyarakat sudah tidak lagi tergantung oleh BBM untuk penerangan di bagan apung mereka.

  5. Pengaruh Sudut Kemiringan Kolektor Surya Pelat Datar Terhadap Efisiensi Termal Dengan Penambahan Eksternal Annular Fin Pada Pipa

    Directory of Open Access Journals (Sweden)

    Unggul Dwi Setyadi

    2015-03-01

    Full Text Available Kemajuan jaman saat  ini banyak sekali penemuan-penemuan teknologi tentang penggunaan energi alternatif yang ramah lingkungan sebagai upaya penghematan energi. Salah satunya adalah memanfaatkan energi surya. Energi surya sebagai energi alternatif yang dirasakan sesuai dengan kondisi saat ini karena disamping murah juga bersifat renewable. Alat yang digunakan untuk menyerap energi surya salah satunya adalah pemanas air kolektor surya pelat datar. Dimensi dari kolektor itu sendiri adalah 500 mm  x 1500 mm Untuk meningkatkan efisiensi dari kolektor dengan cara memperluas permukaan penyerapan panas yaitu menggunakan sirip (fin berbentuk annular. Metodologi penelitian yang  dilakukan adalah menggunakan satu dan dua kaca penutup pada kolektor dengan cara memvariasikan sudut kemiringan kolektor sebesar 10º, 20º, dan 30º pada debit air tetap yaitu 1000 liter/jam.. interval waktu pengambilan data dilakukan selang waktu 1 jam sekali selama 6 jam perhari mulai pukul 09.00 WIB sampai dengan pukul 15.00 WIB. Pengambilan data dilakukan selama 12 hari pada bulan juni 2014. Parameter yang diukur adalah Intensitas cahaya (IT, Kecepatan angin (Vw, Temperatur udara luar (T∞1, Temperatur antar kaca penutup (T∞2, Temperatur dalam kolektor (T∞3, Temperatur permukaan kaca satu (Tc1, Temperatur permukaan kaca dua  (Tc2, Temperatur permukaan pipa tembaga (Tsc, Temperatur permukaan pelat absorber (Tsp, Temperatur air masuk kolektor (Ti, Temperatur air keluar kolektor (TO, Temperatur triplek (TT. Dari hasil penelitian didapatkan temperatur air keluar kolektor tertinggi terjadi pada sudut kemiringan kolektor 30 derajat yaitu sebesar 42,8 ºC dengan intensitas matahari (IT rata-rata 764,71 W/m2 untuk 1 kaca penutup, sedangkan untuk 2 kaca penutup temperatur sebesar 44,8 ºC dengan intensitas matahari (IT rata-rata 790,85 W/m2. Dari semua sudut kemiringan, efisiensi rata – rata solar kolektor satu kaca penutup  51,98%, dan untuk efisiensi rata – rata solar

  6. Pemanfaatan Limbah Oil Sludge Pertamina Sebagai Bahan Baku Dalam Pembuatan Keramik Konstruksi

    OpenAIRE

    Daulay, Abdul Halim

    2010-01-01

    Telah dilakukan pembuatan keramik untuk material konstruksi dengan bahan baku serbuk sludge yang berasal dari limbah oil sludge Pertamina dan kaolin sebagai bahan pengikat. Variasi komposisi serbuk sludge antara lain: 50, 55, 60, s.d. 95 % (dalam % massa) serta penambahan kaolin: 5, 10, 15, s.d. 50 % (dalam % massa), temperatur sinter adalah 1200 0C dengan variasi waktu penahanan selama 1, 2, dan 3 jam. Dimensi sampel uji yang dibuat dalam dua bentuk, yaitu silinder rigid dan balok. Parameter...

  7. Pemanfaatan Limbah (Oil Sludge) Sebagai Bahan Utama Dalam Pembuatan Bata Konstruksi Paving Block

    OpenAIRE

    Rut Maria Br. Ginting

    2009-01-01

    Pembuatan Paving Block telah dilakukan di mana materialnya berasal dari limbah PT Pertamina Pangkalan Susu yang terdiri dari aggregat oil sludge. Semen dan water glass secukupnya sebagai material perekat. Perbandingan antara semen dan water glass adalah 1 : 1 disebut bahan A sementara itu, perbandingan antara sludge dan pasir adalah 4 : 1 disebut bahan B. Bentuk sampel adalah silinder yang diameternya 2,5 cm dan ketebalan 3,5 cm. Setelah 28 hari, sampel tersebut diuji mengetahui porositas...

  8. PEMANFAATAN ENERGI ALTERNATIF GAS ALAM TERKOMPRESI SEBAGAI BAHAN BAKAR MESIN PENGGERAK KAPAL NELAYAN TRADISIONAL

    OpenAIRE

    Ari Wibawa Budi S; Reza Shah Alam

    2013-01-01

    Mesin Diesel adalah mesin yang paling banyak di gunakan oleh para nelayan tradisional untukopersional penangkapan ikan. Kenikan harga dan tidak stabilnya pasokan BBM akan meresahkanmasyarakat nelayan. Untuk itu harus ada upaya pemanfaatan energi alternatif yang bersumber selain dariBBM dan juga ramah lingkungan. Salah satu energi alternatif adalah energi gas alam (natural gas)diantaranya bahan bakar gas alam terkompresi atau Compressed Natural Gas. Penggunaan bahan CNGpada mesin kapal adalah ...

  9. Studi Experimental Perbandingan Perilaku Kuat Geser Pada Tanah Lempung Yang Distabilisasi Dengan Bahan Pencampur Gypsum Dan Semen

    OpenAIRE

    Purba, Elisa Dwijayanti

    2015-01-01

    Dalam dunia konstruksi masalah yang ditimbulkan oleh sifat fisik dan mekanis tanah sering ditemui. Salah satu upaya yang dilakukan untuk mengatasi masalah tersebut adalah dengan melakukan proses stabilisasi tanah untuk perbaikan tanah. Proses stabilisasi tanah tersebut dapat dilakukan dengan cara mencampurkan bahan stabilisator seperti semen, gypsum, fly ash, bitumen,kapur, dan bahan-bahan olahan limbah pabrik lainnya. Dalam penelitian ini akan dilakukan proses stabilisasi tanah denga...

  10. SEL monitoring of the earth's energetic particle radiation environment

    International Nuclear Information System (INIS)

    The Space Environment Laboratory (SEL) of the National Oceanic and Atmospheric Administration (NOAA) maintains instruments on board the GOES series of geostationary satellites, and aboard the NOAA/TIROS series of low-altitude, polar-orbiting satellites, which provide monitoring of the energetic particle radiation environment as well as monitoring the geostationary magnetic field and the solar x-ray flux. The data are used by the SEL Space Environment Services Center (SESC) to help provide real-time monitoring and forecasting of the state of the near earth environment and its disturbances, and to maintain a source of reliable information to research and operational activities of a variety of users

  11. Selän toiminta ja sen harjoittaminen notkeusakrobatiassa

    OpenAIRE

    Reinvall, Ramona

    2015-01-01

    Notkeusakrobatiaan ja selän notkeuden harjoittelemiseen on kautta aikain liitetty paljon kyseenalaisia myyttejä aina tuplanivelisyydestä liskojen sukuisuuteen ja niveliä notkistavien eliksiirien käyttöön harjoittelussa, jotka ovatkin lähinnä huhupuheita, sekä median ja toisinaan jopa notkeusakrobaattien itse viljelemiä kliseitä, joilla lisättiin lajin mystiikkaa. Selän taivuttaminen myös usein leimataan suoralta kädeltä haitalliseksi puuhaksi, jota harjoittelemalla on pyörätuolissa 20-vuoden ...

  12. PENENTUAN ANGKA OKTANA BAHAN BAKAR KOMERSIAL DENGAN MENGGUNAKAN MODEL KINETIKA OKSIDASI DAN PEMBAKARAN HIDROKARBON MULTIKOMPONEN

    Directory of Open Access Journals (Sweden)

    Yuswan Muharam

    2012-11-01

    Full Text Available One of the characteristics of gasoline fuel is anti-knock property represented by its octanenumber. The determination of octane numbers in Indonesia is by using cooperative fuel researchengines. The usage of cooperative fuel research engines in Indonesia has constraints, i.e. the limitednumber of the units and the old age. This study aims to obtain the octane numbers of commercialfuels by using kinetic models. The kinetics models of the oxidation and combustion of primaryreference fuel and multi component hydrocarbons are used to calculate the ignition delay times ofprimary reference fuel and commercial fuels, respectively. The ignition delay times of primaryreference fuel and commercial fuels are calculated at the same initial pressure and temperature, aswell as the same equivalence ratio. The octane number of a commercial fuel is known if its ignitiondelay time agrees with that of PFR possessing a certain volume percentage of isooctane. The modelgenerates the octane numbers of commercial fuels BB-A being 92.5, BB-B being 94.5, BB-C being89, BB-D being 90.5 and BB-E being 91.5 with the good agreement with those claimed by the fuelproducers. Salah satu karakteristik bahan bakar bensin adalah sifat anti ketukan yang dinyatakan dengan angkaoktana. Penentuan angka oktana di Indonesia menggunakan mesin CFR (cooperative fuel research.Pemakaian mesin CFR di Indonesia memiliki kendala, yaitu jumlah unit terbatas dan usia tua.Penelitian ini bertujuan mendapatkan angka oktana bahan bakar komersial dengan menggunakanmodel kinetika. Model kinetika oksidasi dan pembakaran bahan bakar rujukan utama dan modelhidrokarbon multikomponen yang telah divalidasi masing-masing digunakan untuk menghitungwaktu tunda ignisi bahan bakar rujukan utama dan bahan bakar komersial. Waktu tunda ignisibahan bakar rujukan utama dan bahan bakar komersial dihitung pada tekanan dan temperatur awal,serta rasio ekuivalensi yang sama. Angka oktana suatu bahan bakar komersial

  13. SIFAT MEKANIK BAHAN GESEK REM KOMPOSIT DIPERKUAT SERAT BAMBU

    Directory of Open Access Journals (Sweden)

    Sutikno -

    2012-05-01

    Full Text Available Bahan gesek komposit diperkuat serat bambu untuk kampas rem otomotif dibuat menggunakan mesin pres isostatik panas pada 19oC selama 3 jam. Jumlah serat bambu dan serbuk logam di dalam pencampuran dioptimasi, setiap komposisi komponen lain dibuat tetap, pengaruhnya pada sifat-sifat mekanik dan struktur mikro diselidiki. Serat bambu disini digunakan sebagai pengganti serat asbes yang jumlahnya divariasi antara 2,86-17,14% dari volume total dan fraksi berat masing-masing unsur penyusun ditentukan menggunakan energy dispersive X-ray spectroscopy. Angka kekerasan Brinell, kekuatan tarik maksimum, dan ketahanan aus khas bahan gesek yang difabrikasi berada pada rentang 21,7-43,4 kg/mm2, 0,021-0,036 ton, dan 1,5exp-11-5,2exp-11 m2/N.Friction materials of bamboo fibers reinforced composites for automotive brakes were made using hot isostatic pressing machine at 190oC for 3 hours. The contents of bamboo fiber and metal powder in the mixing were optimized, each composition of other components was fixed, its effects on mechanical properties and microstructure were investigated. Bamboo fibers were used here as substitutes for asbestos fibers whose number varied between 2.86 to 17.14% of the total volume and weight fraction of each constituent element is determined using energy dispersive X-ray spectroscopy. Brinell hardness number, the maximum tensile strength and specific wear resistance of friction materials fabricated in the ranges of 21.7 to 43.4 kg/mm2, 0.021 to 0.036 tons, and 1.5 exp-11-5, 2exp-11 m2 / N, respectively.

  14. Unjuk Kerja Pemanas Air Jenis Kolektor Surya Plat Datar dengan Satu dan Dua Kaca Penutup

    Directory of Open Access Journals (Sweden)

    Rahardjo Tirtoatmodjo

    1999-01-01

    Full Text Available Warm water is needed by humanbeing to take a bath, wash their clothes, their dishes etc. By the photothermal conversion, the solar energy can be used to heat the water. Flat solar collector is a tool which is used to capture energy of sun radiation then convert it into heat to heat up water in collector's pipe. The number of glass cover used effects the performance and efficiency of the collector. From this research, it is found that the efficiency of the collector is better when the cover used are two glasses than one glass. The temperature difference of incoming and outgoing water in the collector using 2 glasses 17oC higher than that of 1 glass. Abstract in Bahasa Indonesia : Air panas dibutuhkan manusia untuk berbagai keperluan seperti untuk mandi, mencuci baju, piring dan lain sebagainya. Dengan konversi fotothermal, maka energi panas matahari dapat dimanfaatkan untuk memanaskan air. Sebuah kolektor surya plat datar digunakan untuk memerangkap energi panas matahari dan panasnya diteruskan ke pipa-pipa yang berisi air sehingga terjadi peningkatan suhu dari air yang berada di dalam pipa tersebut. Jumlah kaca penutup dari kolektor memepengaruhi unjuk kerja dari kolektor. Secara umum diperoleh hasil bahwa dengan menggunakan dua buah kaca penutup diperoleh efisiensi yang lebih baik dibandingkan hanya menggunakan satu kaca. Perbedaan suhu antara air keluar kolektor dan yang masuk ke kolektor dengan 2 kaca penutup bisa lebih tinggi hingga sekitar 17°C dibandingkan kolektor dengan sebuah kaca penutup. Kata kunci : energi tak habis terpakai, kolektor panas matahari, konversi photothermal, pemanas air

  15. PEMBANGKIT LISTRIK TENAGA SURYA SKALA RUMAH TANGGA URBAN DAN KETERSEDIAANNYA DI INDONESIA

    Directory of Open Access Journals (Sweden)

    Nyoman Kumara

    2010-07-01

    Full Text Available Indonesia terletak di daerah katulistiwa sehingga memiliki intensitas penyinaran matahari yang baiksepanjang tahun. Kondisi penyinaran ini potensial untuk digunakan dalam pembangkitan listrik tenagasurya (PLTS. Pemanfaatan tenaga matahari untuk pembangkitan listrik sebenarnya sudah dilakukansejak cukup lama namun aplikasinya masih terbatas pada sistem berdaya kecil atau yang lebih dikenaldengan solar home system (SHS. SHS ini biasanya merupakan bantuan pemerintah yang diberikan secarasubsidi dan masyarakat pedesaan menggunakannya sebagai sarana penerangan di malam hari untukmengganti lampu minyak tanah. Dalam konteks ini terlihat bahwa pendekatan yang digunakan bersifattop-down sehingga selama ini perkembangan SHS sangat tergantung pada program pemerintah dan sejauhini kontribusi energi listrik surya nasional masih sangat kecil.Masyarakat perkotaan merupakan komponen yang cukup besar dalam komposisi populasi Indonesia.Sebenarnya kelompok masyarakat ini hampir semuanya berada dalam jangkauan jaringan listrik PLNnamun demikian mereka memiliki karakteristik yang lebih baik dibandingkan dengan masyarakatpedesaan dalam pemanfaatan PLTS seperti daya beli, tingkat pendidikan, serta pemahaman tentanglingkungan dan penyelamatannya. Di samping itu, peranan energi listrik dalam kehidupan masyarakaturban sudah sangat melekat sehingga ketidaktersediaan energi tersebut akan berpengaruh langsungterhadap kehidupan mereka seperti produktifitas dan kenyamanan. Beberapa ciri positif yang dimilikimasyarakat urban ini bisa dijadikan penggerak pemasyarakatan PLTS perkotaan yang bersifat swakarsadan swakelola. Melalui pendekatan berbasis pemberdayaan masyarakat kota ini diharapkan akan menjadikomponen penting dalam upaya peningkatan kapasitas terpasang PLTS nasional untuk mencapai targetsekitar 5% energi listrik terbarukan pada tahun 2025 seperti ditetapkan dalam Kebijakan Energi Nasional.Salah satu prasyarat dalam perluasan pemanfaatan PLTS adalah ketersediaan

  16. Pengaruh Konsentrasi dan Waktu Kontak Ekstrak Etanol Lerak (Sapindus rarak DC) Sebagai Alternatif Bahan Irigasi Saluran Akar Terhadap Kelarutan Jaringan Pulpa (Penelitian in Vitro)

    OpenAIRE

    Teo, Heng Yan

    2015-01-01

    Pengaruh Konsentrasi Dan Waktu Kontak Ekstrak Etanol Lerak (Sapindus rarak DC) Sebagai Alternatif Bahan Irigasi Saluran Akar Terhadap Kelarutan Jaringan Pulpa (Penelitian in Vitro) xi + 48 halaman Keberhasilan perawatan endodontik tergantung pada penyingkiran jaringan pulpa, debris dentin dan bakteri secara kemomekanis. Konsentrasi dan waktu kontak bahan irigasi akan mempengaruhi daya kelarutan jaringan pulpa. Buah lerak dapat digunakan sebagai alternatif bahan irigasi saluran akar karena ...

  17. "Koolitants" kutsub noori ka sel hooajal / Liisi Seil

    Index Scriptorium Estoniae

    Seil, Liisi, 1971-

    2009-01-01

    Festival "Koolitants", mille tänavune moto on "Tants toob naeru näole!", püüab sel aastal hakkama saada kolmandiku võrra väiksema eelarvega. Kokkuhoiu mõttes jäetakse ära piirkondlikud voorud

  18. SISTEM PENGENALAN KONDISI SEL DARAH MERAH (ERYTHROCYTE PADA CITRA MIKROSKOPIS

    Directory of Open Access Journals (Sweden)

    Arie Anggreani

    2010-12-01

    Full Text Available Sistem pengenalan kondisi sel darah merah adalah suatu sistem yang pengenalan sel darah merah manusiadengan membandingkan kondisi sel darah merah dengan kondisi acuan yang ada dalam basisdata. Sistem inimenggunakan metode moments untuk mengektraksi fitur citra dengan menghasilkan 7 (tujuh nilai invariantmoments untuk setiap objek. Citra uji akan dicocokkan dengan citra acuan , citra-citra tersebut dihitung fiturnyaterlebih dahulu menggunakan metode yang ada dan hasil pencocokan akan mendapatkan suatu nilai kedekatan(skor antara dua fitur citra tesebut, hasil dari sistem ini adalah sebuah citra acuan yang memiliki skor terkecildengan citra acuan. Pencocokan dianggap sukses jika deskripsi citra yang dihasilkan oleh sistem sama dengan hasilanalisis dokter. Penelitian ini mencari akurasi sistem dengan menggunakan nilai parameter tertentu. Penelitian inidiuji 50 sampel citra sel darah merah dengan jumlah objek sebanyak 741 buah, dan dengan 50 citra acuan denganjumlah objek 364 buah. Dari penelitian diperoleh metode yang memberikan tingkat kesuksesan tertinggi yaitu94.86% untuk pengenalan kondisi normal dan 88.89% untuk pengenalan kondisi abnormal.

  19. Software Engineering Laboratory (SEL) programmer workbench phase 1 evaluation

    Science.gov (United States)

    1981-01-01

    Phase 1 of the SEL programmer workbench consists of the design of the following three components: communications link, command language processor, and collection of software aids. A brief description, and evaluation, and recommendations are presented for each of these three components.

  20. Ösel Foods paindub turul hästi

    Index Scriptorium Estoniae

    2003-01-01

    Ösel Foods AS-i juhatuse esimees Kuldar Leis tutvustab ettevõtte tegevust, tootearendust ja müügistrateegiat ning võrdleb eestlaste maitsmismeelt ja tarbimisharjumusi naaberriikidega. Kommenteerib Põltsamaa Felix AS-i juhatuse esimees Andres Koern

  1. PENGARUH VARIASI TEKANAN PENGEPRESAN DAN KOMPOSISI BAHAN TERHADAP SIFAT FISIS BRIKET ARANG

    Directory of Open Access Journals (Sweden)

    Reni Setiowati

    2014-10-01

    Full Text Available Bahan bakar alternatif diperlukan untuk pengganti sumber daya alam yang tidak dapat diperbarui.Salah satu bahan bakar alternatif tersebut yang dikembangkan adalah briket arang dengan memanfaatkan limbah biomassa.Pada penelitian ini dibuat briket arang dengan mengkaji pengaruh variasi tekanan pengepresan dan komposisi bahan terhadap sifat fisis briket arang. Proses karbonisasi pada tempurung kelapa 450ºC selama 15 menit. Serbuk kayu dikarbonisasi menggunakan klin drum selama 4-5 jam. Perbandingan komposisi bahan tempurung kelapa dengan serbuk kayu adalah sebagai berikut 75%:25%, 25%:75%, 50%:50%, 100%:0%, 0%: 100% dengan tekanan pengepresan 50 N/cm2, 100 N/cm2,150N/cm2. Pengeringan briket dilakukan di dalam oven dengan suhu 60°C selama 24 jam. Briket berbentuk silinder dengan diameter 5 cm.Hasil penelitian menunjukkan briket paling optimum dengan perbandingan komposisi bahan 100% tempurung kelapa menggunakan tekanan antara 100-150 N/cm2 dengan nilai parameter uji sebagai berikut densitas 0.634 gr/cm3, kekuatan mekanik 43.167 N/cm2 dan lama pembakaran 64,39 menit.

  2. PEMBERDAYAAN PEREMPUAN MELALUI PELATIHAN PENGOLAHAN BAHAN PANGAN LOKAL

    Directory of Open Access Journals (Sweden)

    Wildan Saugi

    2015-11-01

    Full Text Available Penelitian ini bertujuan untuk mengetahui pelatihan pengolahan bahan pangan lokal yang dapat memberdayakan warga perempuan dusun Pagerjirak, Kejobong, Purbalingga. Penelitian ini merupakan participatory action research (PAR dengan pendekatan kualitatif dan kuantitatif. Subjek penelitian terdiri dari kepala dusun, tujuh anggota tim pengelola dusun, dan 15 warga perempuan dusun. Data penelitian diperoleh dengan teknik observasi, wawancara, dan dokumentasi. Hasil penelitian adalah sebagai berikut. (1 Perencanaan partisipatoris terdiri dari identifikasi kebutuhan dusun dan penyiapan tim pengelola program dusun. (2 Pelaksanaan proses pemberdayaan melalui pelatihan dimulai dengan  menyiapkan tim pengelola, membentuk  kelompok usaha, menjalin kemitraan dengan pihak pemerintah dan swasta, membangun rumah produksi, mengajukan izin produksi, produksi dan pemasaran produk,  melakukan studi banding ke industri rumah tangga, melakukan perbaikan dan diversifikasi produk, dilanjutkan dengan pelatihan massal, dan pendampingan. (3 Indikator keberhasilan pelatihan diantaranya adalah bertambahnya pengetahuan dan keterampilan warga, serta diperolehnya pendapatan hasil usaha penjualan produk. (4 Keberlanjutan program pemberdayaan perempuan ditunjukkan dengan telah adanya pengembangan produk atau variasi produk dan terbentuknya kemandirian tim. Kata Kunci: pemberdayaan perempuan, pelatihan, bahan pangan lokal   WOMAN EMPOWERMENT THROUGH LOCAL PRODUCE PROCESSING TRAININGS Abstract This research aims to reveal the local produce processing that can empower women in Pagerjirak, Kejobong, Purbalingga. This research was participatory action research with the qualitative and quantitative approach. The research subject consisted of the village chief, core team consisting of seven people, and 15 women in the village. The research data were obtained through observations, interviews, and documentation. The results of research are as follows. (1 The participatory planning

  3. Studi Eksperimental Pemanas Air Tenaga Surya Pelat Absorber Type Sinusoidal dengan Variasi Terhadap Derajat Kevacuman dan Aspect Ratio

    Directory of Open Access Journals (Sweden)

    Izha Mahendra

    2014-03-01

    Full Text Available Sistem kolektor surya yang dirancang adalah kolektor dengan variasi tingkat kevakuman dan aspect ratio dengan tebal pelat (δ 1 mm . Untuk tingkat pemvakuman -20 cm.Hg, -40 cm.Hg, dan -60 cm.Hg serta menggunakan aspect ratio 1, 1.33, dan 2. Pengambilan data dilaksanakan dengan memvariasi debit fluida kerja dengan mengatur bukaan katup, yaitu dari 100 cc/menit sampai 300 cc/menits kenaikan 100 cc/menit. Dengan pemvariasian tingkat kevacuman di antara pelat absorber dan kaca penutup, diharapkan dapat memperkecil koefisien kehilangan, temperatur absorber naik, dan temperatur kaca penutup turun. Sehingga dapat meningkatkan efisiensi kolektor. Sehingga kita dapat menyimpulkan bahwa pada tingkat kevacuman -60 cmHg efisiensi yang didapat lebih besar dibandingkan dengan tingkat kevakuman -20 cmHg dan -40 cmHg. Sedangkan untuk aspect ratio 2 memiliki efisiensi terbesar dibandingkan aspect ratio 1 dan 1,33

  4. EFEKTIVITAS BAHAN AJAR IPA TERPADU TERHADAP KEMAMPUAN BERPIKIR TINGKAT TINGGI SISWA SMP

    Directory of Open Access Journals (Sweden)

    L. Yuliati

    2013-06-01

    Full Text Available Penelitian ini bertujuan untuk menguji efektivitas bahan ajar IPA terpadu untuk SMP, khususnya tema Air Limbah Rumah Tangga. Desain penelitian menggunakan kuasi-eksperimen dengan Pretest-Postest Control Group Design. Penelitian dilaksanakan di SMPN 20 Malang kelas VII. Sampel ditetapkan dengan purposive sampling. Perlakuan pada kelompok eksperimen adalah pembelajaran yang menggunakan bahan ajar IPA terpadu, sedangkan kelompok kontrol  menggunakan buku  sekolah elektronik (BSE. Instrumen yang digunakan adalah butir soal tes, lembar observasi pembelajaran, dan perangkat  pembelajaran. Analisis data dilakukan dengan Anava AB untuk uji perbedaan rerata dan uji scheffe untuk uji efektivitas bahan ajar. Hasil penelitian menunjukkan bahwa terdapat perbedaan kemampuan berpikir tingkat tinggi pada siswa SMP yang menggunakan bahan ajar IPA Terpadu dengan siswa SMP yang menggunakan bahan ajar IPA yang terpisah bidang kajiannya, dan bahan ajar IPA terpadu efektif untuk meningkatkan kemampuan berpikir tingkat tinggi siswa. This study aims totest the effectiveness of an integrated science teaching materials for students of junior high school, particularly in themeof Domestic Wastewater. The study designused a quasi-experimental pretest-posttest with control group design. The experiment was conductedin Junior High School of Malang. Samples were determined by purposive sampling. Treatmentin the experimental group was learning to integrated science teaching materials, whereas in the control group with the teaching materials available in schools. The instrument used were a matter oftestitems, observation sheets of learning, and learningtools. Data analysis was performed with AnovaAB totestmean difference and Scheffetesttotestthe effectiveness ofinstructional materials. The results showed that 1there aredifferences inhigher-order thinkingskillsinjunior high school students using teaching materials in integrated science withjunior high school students

  5. SEL Hardness Assurance in a Mixed Radiation Field

    CERN Document Server

    Garcia Alia, Ruben; Danzeca, Salvatore; Ferlet-Cavrois, Veronique; Frost, Christopher; Gaillard, Remi; Mekki, Julien; Saigné, Frédéric; Thornton, Adam; Uznanski, Slawosz; Worbel, Frédéric; CERN. Geneva. ATS Department

    2015-01-01

    This paper explores the relationship between monoenergetic and mixed-field Single Event Latchup (SEL) cross sections, concluding for components with a very strong energy dependence and highly-energetic environments, test results from monoenergetic or soft mixed-field spectra can significantly underestimate the operational failure rate. We introduce a semi-empirical approach that can be used to evaluate the SEL rate for such environments based on monoenergetic measurements and information or assumptions on the respective sensitive volume and materials surrounding it. We show that the presence of high-Z materials such as tungsten is particularly important in determining the hadron cross section energy dependence for components with relatively large LET thresholds.

  6. Pembuatan Keramik Paduan Cordierit-Alumina Sebagai Bahan Refraktori dan Karakterisasinya

    OpenAIRE

    Kaston Sijabat

    2008-01-01

    Telah dilakukan pembuatan Keramik paduan Cordierit 2MgO.2Al2O3.5SiO2- Alumina (Al2O3) dengan menggunakan bahan baku lokal melalui reaksi padatan. Bahan baku yang digunakan untuk mendapatkan serbuk Cordierit adalah pasir silika sebagai sumber SiO3, magnesit (MgCO3) sebagai sumber MgO dan alumina teknis sebagai sumber AL2O3. Dari hasil pembuatan keramik paduan Cordierit - Alumina maka dilakukan karakterisasi meliputi Porositas, Densitas, Pengujian Koefisien Ekspansi Termal, Kuat Patah dan Anali...

  7. Studi Kasus Perbandingan antara Lot-for-Lot dan Economic Order Quantity Sebagai Metode Perencanaan Penyediaan Bahan Baku

    Directory of Open Access Journals (Sweden)

    Oegik Soegihardjo

    1999-01-01

    Full Text Available Production and material requirements planning are interrelated. The number of required material depends on the quantity of products for a certain period. The are some methods for material requirements planning. Two of them are lot-for-lot and economic order quantity. Those two methods will be apllied to impeller requirements planning for centrifugal pumps and evaluated to determine which one is more appropriate for the case being studied. Those methods are chosen because each of them has different characteristic in determination of lot's quantity. In lot-for-lot the determination of quantity of the impeller is based on the requirements for single period. In economic order quantity the determination of quantity of the impeller is based on expected requirements. Abstract in Bahasa Indonesia : Perencanaan produksi dan penyediaan bahan baku merupakan dua hal yang berkaitan. Berapa banyak bahan baku yang harus disediakan, ditentukan oleh berapa jumlah produk yang akan dibuat pada suatu periode tertentu. Metode perencanaan untuk penyediaan bahan baku ada beberapa macam. Dua di antara metode perencanaan penyiapan bahan baku adalah 'lot-for-lot' dan 'economic order quantity'. Dua metode tersebut akan dipakai untuk perencanaan penyediaan sudu pompa sentrifugal untuk dievaluasi mana yang lebih sesuai untuk kasus penyediaan sudu pompa sentrifugal tersebut. Dua metode ini dipilih karena kedua metode tersebut mempunyai karakter yang berbeda dalam penyediaan kebutuhan bahan baku (bahan baku dalam kasus ini adalah impeller pompa. Pada metode 'lot-for-lot' penentuan jumlah sediaan bahan baku ditetapkan sedemikian rupa untuk memenuhi kebutuhan bersih satu periode tunggal. Sedangkan pada metode 'economic order quantity' penentuan sediaan bahan baku ditetapkan berdasarkan kebutuhan yang diperkirakan (expected requirements. Kata kunci: kebutuhan bahan baku, kebutuhan bersih, 'lot-for-lot', 'economic order quantity'.

  8. Analisa Efisiensi Kipas dan Simulasi Kecepatan Hidrogen di Dalam Micro Channel Sel Bahan Bakar (Fuel Cell) Polymer Electrolyte Membrane Kapasitas 20W

    OpenAIRE

    Juwirianto

    2015-01-01

    Fossil fuels are resources that produce electricity, power cars, and another equipment. Because of massive usage by human in earth, by the time fossil fuels will completely run out. Before this fossil fuels run out, we shall look for another unlimited alternative fuels. One of those alternative fuels is hydrogen. This study concerned with the Polymer Electrolyte Membrane Fuel Cell. This study will become the first study so there shall be a continuous study of fuel cell. Fuel cell is one of a ...

  9. Ösel Foodsi müügihitid / Aivar Hundimägi

    Index Scriptorium Estoniae

    Hundimägi, Aivar, 1975-

    2004-01-01

    2001. aastal müüs Ösel Foods poole firma käibest andnud Linnuse kalja Coca-Colale, 2003. aastal otsustas A. Le. Coq Tartu Õlletehas Öseli ära osta. Mõlemat tehingut peetakse heaks müügitehinguks müüjale. Diagramm: Kali ja mahlad tõid Öseli tagasi kasumisse. Lisad: Ösel Foods keskendus 2001. aastal mahla tootmisele; Ösel hindas Aura ACE turuletoomise edukaks; Ösel Foodsi tippjuhid tegid mitu müügitehingut

  10. Pengembangan Potensi dan Pemanfaatan Bambu Sebagai Bahan Baku Konstruksi dan Industri di Sulawesi Selatan

    OpenAIRE

    Muin, Musrizal; Suhasman; Oka, Ngakan Putu; Putranto, Beta; Baharuddin; Millang, Syamsuddin

    2006-01-01

    Penelitian "Pengembangan Potensi dan Pemanfaatan Bambu Sebagai Bahan Baku Konstruksi dan Industri di Sulawesi Selatan" ini diperlukan untuk menunjang program-program pembangunan dan menignkatkan kesejahteraan masyarakat di Sulawesi Selatan. Secara khusus, penenlitian ini bertujuan untuk: (1) mengetahui potensi, letak, luas, sebaran, dan produktivitas tegakan bambu; (2) mengetahui pemanfaatan dan teknologi pengolahan bambu; (3) mengetahui keberadaan dan peran lembaga yang terkait dengan pengel...

  11. Penanganan Bahan Baku Pastry Dan Bakery Dalam Upaya Mempertahankan Standar Kualitas Di Hotel J.W Marriott Medan

    OpenAIRE

    Pratiwi, Puspa

    2012-01-01

    Sarana akomodasi perhotelan tidaklah lengkap tanpa adanya dukungan dari fasilitas makanan dan minuman. Dalam dunia perhotelan hal tersebut identik dengan sebutan “Food and Beverage” yang mana digolongkan dalam section Food and Beverage Department, atau dengan sebutan pengolahan makanan. Kertas karya ini yang berjudul “Penanganan Bahan Baku Pastry dan Bakery Dalam Upaya Mempertahankan Standar Kualitas Di Hotel J.W Marriott Medan” akan membahas proses penanganan bahan baku pastry dan bakery, se...

  12. Produksi Bioetanol dari Bahan Baku Singkong, Jagung dan Iles-iles :Pengaruh Suhu Fermentasi dan Berat Yeast Saccharomyces cerevisiae

    Directory of Open Access Journals (Sweden)

    K. Kusmiyati

    2014-12-01

    Full Text Available Kebutuhan bahan bakar di masa sekarang semakin bertambah besar sehingga berdampak pada menipisnya sumber bahan bakar dan meningkatnya polusi udara di lingkungan. Penggunaan bahan bakar alternatif dari sumber non fosil merupakan pilihan terbaik sebagai pengganti bahan bakar fosil. Bioetanol merupakan salah satu energi alternatif yang tepat digunakan baik di masa sekarang ataupun di masa yang akan datang. Bahan baku etanol yang digunakan pada penelitian ini adalah singkong, dan iles-iles.Variabel penelitian yang diamati temperatur fermentasi (30°C; 40°C;­­ 50°C dan komposisi Saccharomyces cerevisiae (2,5 g; 5 g; 10 g; 15 g Proses pembuatan bioetanol terdiri dari hidrolisis enzim yaitun likuifikasi menggunakan a-amylase1,6% v/w (t = 1 jam; T = 95-100°C; pH 6 dan sakarifikasi menggunakan b-amylase 3,2% v/w (t = 4 jam; T = 60°C; pH 5 serta proses fermentasi menggunakan Saccharomyces cerevisiae ( t = 120 jam; pH 4,5; yeast 5 g. Kadar etanol tertinggi dihasilkan pada temperatur fermentasi 30°C untuk semua bahan baku dengan kadar etanol masing-masing 83,43 g/L untuk singkong,80,77 g/L untuk jagung,dan 79,94 g/L untuk iles-iles. Normal 0 false false false EN-US X-NONE X-NONE

  13. Software Engineering Laboratory (SEL) Data Base Maintenance System (DBAM) user's guide and system description

    Science.gov (United States)

    Lo, P. S.; Card, D.

    1983-01-01

    The Software Engineering Laboratory (SEL) Data Base Maintenance System (DBAM) is explained. The various software facilities of the SEL, DBAM operating procedures, and DBAM system information are described. The relationships among DBAM components (baseline diagrams), component descriptions, overlay descriptions, indirect command file listings, file definitions, and sample data collection forms are provided.

  14. Biodièsel : impacte en origen del biodièsel consumit a Catalunya i a Espanya

    OpenAIRE

    Figueras Alsius, Mireia; Ramos Martín, Jesús

    2012-01-01

    Actualment la situació del mercat espanyol i català del biodièsel es caracteritza per les grans importacions d'oli de palma africana. Per a produir aquesta matèria primera s'estan establint plantacions a gran escala d'Elaeis guineensis (palma africana) a Indonèsia. El monocultiu d'Elaeis guineensis i la producció de l'oli tenen associats grans impactes ambientals i socials. Per una banda, els impactes ambientals són principalment la desforestació, el canvi d'ús del sòl, la pèrdua de biodivers...

  15. UJI KALOR BAKAR BAHAN BAKAR CAMPURAN BIOETANOL DAN MINYAK GORENG BEKAS

    Directory of Open Access Journals (Sweden)

    Imam Tazi, Sulistiana

    2012-03-01

    Full Text Available Menurut  laporan  The  World  Energy  Council   tahun  1993,  menjelang   tahun  2020 kebutuhan energi  dunia  akan  meningkat  dari  8,8  Gtoe  (gigatons  of  oil  equivalent  menjadi  11,3 sampai  17,2  Gtoe  (IEA,  2006.  Kondisi  tersebut  akan  menguras  banyak  cadangan  minyak  bumi. Bietanol adalah salah satu sumber energi alternatif baru.  Tujuan khusus  dari penelitian ini adalah mengetahui besar kalor yang dihasilkan oleh  bahan bakar tersebut,mengetahui komposisi campuran bioetanol dan minyak goreng bekas  yang dapat digunakan sebagai bahan bakar kompor bertekanan. Hasil dari penelitian uji kalor bakar bahan bakar campuran bioetanol dan minyak goreng bekas untuk nilai kalornya adalah 76,86 J/kg – 27,52J/kg, sedangkan nilai viskositasnya 46,5 cSt – 22,5 cSt. Hasil dari  penelitian ini menunjukkan untuk nilai kalor yang tepat dijadikan sebagai bahan bakar  kompor bertekanan apabila campuran bioetanol lebih banyak dari pada minyak goreng bekas. Kesimpulan dari penelitian ini adalah bahwa besar nilai kalor yang dihasilkan oleh bahan  bakar campuran bioetanol dan minyak goreng bekas adalah 76,86 J/kg dengan  viskositasnya 46,2 cSt. Sedangkan nilai kalor bakar  terendah  adalah  27,52  J/kg  dengan  viskositasnya  22,5  cSt.  Bertambahnya  campuran  akan mempengaruhi penurunan nilai kalor bakar campuran bioetanol. Komposisi campuran bioetanol dan minyak goreng bekas yang  dapat digunakan sebagai bahan bakar pada kompor bertekanan apabila penambahan campuran bioetanol lebih banyak dari minyak goreng bekas.

  16. LEVEL OPTIMUM SARI BUAH LEMON (CITRUS LIMON) SEBAGAI BAHAN PENGGUMPAL PADA PEMBENTUKAN CURD KEJU COTTAGE

    OpenAIRE

    NIZHAR, ULLYL MI???RAJ

    2012-01-01

    Ullyl Mi???raj Nizhar ( I 411 08 264 ). Level Optimum Sari Buah Lemon (Citrus limon) Sebagai Bahan Penggumpal Pada Pembentukan Curd Keju Cottage. Dibawah bimbingan Ratmawati Malaka selaku pembimbing utama dan Hajrawati selaku pembimbing anggota. Keju adalah salah satu produk olahan yang berbahan dasar susu yang dikoagulasikan dengan menggunakan fermentasi bakteri asam laktat atau dengan memanfaatkan enzim rennet sehingga terjadi curd dan pemisahan serum susu. Alternatif pengganti enzim re...

  17. Studi Pengaruh Penggunaan Bahan Tambah Zat Adiktif Yang Berbasis Hydrocarbon Terhadap Marshall dan Indirect Tensile Strenght

    OpenAIRE

    HAKIM, LUKMAN

    2014-01-01

    ABSTRAK Liquid Asbuton adalah nama suatu produk ekstraksi batuan aspal alam dari Pulau Buton melalui pengembangan teknologi, liquid Asbuton memiliki penetrasi yang sangat rendah, sehingga digolongkan sebagai aspal keras. pada umumnya mengandung 60% sampai dengan 75% kadar bitumen sisanya adalah mineral 25%-40% sebagai bahan pengisi alam, bitumen sebagian besar dibentuk oleh asphaltene dan sedikit maltene kadar stabilitas yang tinggi dan malten, yang terdiri dan polyaromatics resin (dengan...

  18. Kajian Karakteristik Laboratorium Aspal Porus dengan Menggunakan Crumb Rubber Sebagai Bahan Tambahan

    OpenAIRE

    Harmadhana, Shinta

    2016-01-01

    Aspal porus adalah salah satu tipe perkerasan yang dikembangkan di Amertika, Eropa dan Australia. Gradasi yang digunakan aspal porus memiliki persentase agregat kasar tidak kurang 85% dari volume campuran. Adanya rongga/pori tersebut menyebabkan campuran memiliki nilai VIM yang lebih tinggi tetapi menghasilkan stabilitas yang lebih rendah. Guna menigkatkan stabilitas pada aspal porus maka diberikan bahan tambahan Crumb Rubber sehingga dapat meningkatkan daya rekat pada agregat. Tujuan pene...

  19. Pemanfaatan Biogas Kotoran Ternak Sapi Sebagai Pengganti Bahan Bakar Minyak Dan Gas

    OpenAIRE

    Ramli Tarigan

    2009-01-01

    Gas bio merupakan gas hasil aktivitas biologi melalui proses fermentasi anaerob dan merupakan energi terbarukan, sebagai bahan pembuat gas bio adalah kotoran hewan dan sampah organik. Penelitian dilakukan dengan menggunakan dua macam variasi pengenceran terhadap medium larutan (air PDAM ) yaitu 1 : 2 dan 1 : 4% volume. Pengamatan meliputi besarnya produksi gas bio, komposisi gas bio, tekanan, tempratur dan tingkat keasaman (pH). Temperatur yang bekerja pada bio degester berkisar 30 – 350C, ti...

  20. Pengembangan Bahan Ajar Berbantuan Camtasia pada Pokok Bahasan Lingkaran melalui Edmodo untuk siswa MTs

    Directory of Open Access Journals (Sweden)

    Yajid Latif

    2013-12-01

    Full Text Available Abstrak Tujuan penelitian ini untuk menghasilkan bahan ajar pokok bahasan lingkaran yang memenuhi kriteria valid, praktis, dan memiliki efek potensial terhadap hasil belajar pada pemecahan masalah. Bahan ajar yang dikembangkan menggunakan pendekatan pemecahan masalah pada latihan soal yang ditampilkan dalam bentuk video pada edmodo. Kegiatan penelitian dilakukan di MTs Miftahul Huda Tuguagung pada semester 2 tahun ajaran 2012/2013. Penelitian ini menggunakan metode penelitian pengembangan. Berdasarkan analisis hasil penelitian dapat disimpulkan bahwa: 1 Pada penelitian ini menghasilkan ba-han ajar pokok bahasan lingkaran melalui edmodo yang valid dan praktis; 2 Bahan ajar pa-da pokok  bahasan lingkaran melalui edmodo memiliki efek potensial terhadap hasil belajar pada pemecahan masalah dengan nilai persentase minat 79,7% dengan kategori tinggi dan hasil belajar pada soal pemecahan masalah dengan kategori baik.   Kata Kunci: Penelitian pengembangan; edmodo; pemecahan masalah   Abstract The purpose of this study was to produce teaching materials on circle which has criteria valid, practical, and has a potential effect on learning outcomes in problem solving. Tea-ching materials developed using a problem -solving approach to the exercises shown in the form of video on Edmodo. Research activities conducted in MTs Miftahul Huda Tugu-agung in the 2nd half of the school year 2012/201. This study uses research development. Based on the analysis of the results of this study concluded that : 1 In this study produces teaching materials subject circle through Edmodo valid and practical; 2 Teaching ma-terial on the subject of the circle through Edmodo has a potential effect on learning out-comes in problem solving with 79.7 % percentage interest in the high category and learn-ing outcomes in a matter of solving the problem with good categories . Keywords: Research and Development; edmodo; problem solving

  1. Kadar Bahan Organik dan Beberapa Sifat Fisik Tanah di Bawah Tegakan Tusam

    OpenAIRE

    Panus, Ette

    2011-01-01

    ETTE PANUS (M 111 07 901). Kadar Bahan Organik dan Beberapa Sifat Fisik Tanah di Bawah Tegakan Tusam (Pinus merkusii Jungh. et de Vriese), Mahoni (Swietenia macrophylla King), Akasia (Acacia auriculiformis Cunn. ex Benth) dan Puspa (Schima wallichii Korth) di Hutan Pendidikan Bengo- Bengo di bawah bimbingan Baharuddin Nurkin dan H. Anwar Umar. Penelitian ini bertujuan untuk mengetahui pengaruh tegakan murni dari tusam, mahoni, akasia dan puspa terhadap sifat-sifat fisik tana...

  2. SINTESIS SILIKA AEROGEL DENGAN BAHAN DASAR ABU BAGASSE

    Directory of Open Access Journals (Sweden)

    Nazriati Nazriati

    2012-05-01

    Full Text Available SYNTHESIS OF SILICA AEROGEL FROM BAGASSE ASH. Synthesis of silica aerogel from bagasse ash was done by alkaline extraction followed by sol-gel. Bagasse ash was extracted with NaOH at its boiling temperature for one hour with continue stirring, to produce sodium silicate. Subsequently, sodium silicate was pass through ionic exchanger resin, to produces silicic acid (SA. Silicic acid solution was then added with TMCS and HMDS as surface modifier agent. In order to form gel pH must be adjusted to final pH of 8-9 by addition of NH4OH solution. The resulting gel then was aged and dried at ambient pressure and at a certain time and temperature. Characterization of products was done by measuring its pore volume, surface area, and hydrophobisity (contact angle. TMCS serves as water expeller from the pores and subsequently surface was modified by HMDS and TMCS. HMDS content will linearly increase surface area, pore volume, and the contact angle of the resulting silica aerogel. Characteristics of silica aerogel was generated by varying the composition of the SA:TMCS:HMDS resulting has a surface area of 50-488 m2/g, pore volume from 0.2 to 0.9 m3 /g, the contact angle of 48-119 and pore diameter ranging from 5.7-22.56 nm. Based on the resulting pore diameter, the synthesized of silica aerogel categorized as mesoporous.      Abstrak   Sintesis silika aerogel dari bahan dasar abu bagasse dilakukan dengan ekstraksi basa dan diikuti dengan sol-gel. Abu bagasse diekstrak dengan NaOH pada suhu didihnya sambil diaduk selama satu jam, menghasilkan sodium silikat. Selanjutnya, sodium silikat dilewatkan resin penukar ion, menghasilkan asam silicic (SA. Larutan asam silicic kemudian ditambahkan trimethy­l­chlorosilane (TMCS dan hexamethyldisilazane (HMDS sebagai agen pemodifikasi permukaan. Untuk terjadinya gel pH diatur hingga mencapai 8-9 dengan penambahan larutan NH4OH. Gel yang dihasilkan kemudian di-aging dan dikeringkan pada tekanan ambien pada suhu dan

  3. Decameric SelA•tRNA(Sec) ring structure reveals mechanism of bacterial selenocysteine formation.

    Science.gov (United States)

    Itoh, Yuzuru; Bröcker, Markus J; Sekine, Shun-ichi; Hammond, Gifty; Suetsugu, Shiro; Söll, Dieter; Yokoyama, Shigeyuki

    2013-04-01

    The 21st amino acid, selenocysteine (Sec), is synthesized on its cognate transfer RNA (tRNA(Sec)). In bacteria, SelA synthesizes Sec from Ser-tRNA(Sec), whereas in archaea and eukaryotes SepSecS forms Sec from phosphoserine (Sep) acylated to tRNA(Sec). We determined the crystal structures of Aquifex aeolicus SelA complexes, which revealed a ring-shaped homodecamer that binds 10 tRNA(Sec) molecules, each interacting with four SelA subunits. The SelA N-terminal domain binds the tRNA(Sec)-specific D-arm structure, thereby discriminating Ser-tRNA(Sec) from Ser-tRNA(Ser). A large cleft is created between two subunits and accommodates the 3'-terminal region of Ser-tRNA(Sec). The SelA structures together with in vivo and in vitro enzyme assays show decamerization to be essential for SelA function. SelA catalyzes pyridoxal 5'-phosphate-dependent Sec formation involving Arg residues nonhomologous to those in SepSecS. Different protein architecture and substrate coordination of the bacterial enzyme provide structural evidence for independent evolution of the two Sec synthesis systems present in nature. PMID:23559248

  4. SEL1L deficiency impairs growth and differentiation of pancreatic epithelial cells

    Directory of Open Access Journals (Sweden)

    Schimenti John C

    2010-02-01

    Full Text Available Abstract Background The vertebrate pancreas contains islet, acinar and ductal cells. These cells derive from a transient pool of multipotent pancreatic progenitors during embryonic development. Insight into the genetic determinants regulating pancreatic organogenesis will help the development of cell-based therapies for the treatment of diabetes mellitus. Suppressor enhancer lin12/Notch 1 like (Sel1l encodes a cytoplasmic protein that is highly expressed in the developing mouse pancreas. However, the morphological and molecular events regulated by Sel1l remain elusive. Results We have characterized the pancreatic phenotype of mice carrying a gene trap mutation in Sel1l. We show that Sel1l expression in the developing pancreas coincides with differentiation of the endocrine and exocrine lineages. Mice homozygous for the gene trap mutation die prenatally and display an impaired pancreatic epithelial morphology and cell differentiation. The pancreatic epithelial cells of Sel1l mutant embryos are confined to the progenitor cell state throughout the secondary transition. Pharmacological inhibition of Notch signaling partially rescues the pancreatic phenotype of Sel1l mutant embryos. Conclusions Together, these data suggest that Sel1l is essential for the growth and differentiation of endoderm-derived pancreatic epithelial cells during mouse embryonic development.

  5. OPTIMASI DAYA MESIN DAN KONSUMSI BAHAN BAKAR MESIN TOYOTA SERI 5K MELALUI PENGGUNAAN PENGAPIAN BOOSTER

    Directory of Open Access Journals (Sweden)

    Mardani Ali Sera

    2015-10-01

    Full Text Available Proses pembakaran adalah proses secara fisik yang terjadi di dalam silinder. Proses pembakaran dimulai pada saat busi memercikkan bunga api hingga terjadi proses pembakaran. Dalam penelitian ini digunakan metode eksperimen yaitu membandingkan daya dan konsumsi bahan bakar antara pengapian standar dengan pengapian menggunakan booster. Berdasarkan data hasil uji coba perbandingan antara sistem pengapian standar dengan pengapian yang menggunakan booster dengan objek penelitian mesin Toyota seri 5K diketahui adanya kenaikan 2.61% daya menjadi 27.723 kW dari 27.17 kW antara sistem pengapian standar dengan pengapian yang menggunakan booster pada putaran mesin 2400 rpm. Sedangkan prosentase kenaikan rerata daya sebesar 2.79 %. Penggunaan booster juga membuat penggunaan konsumsi bahan bakar spesifik (sfc antara sistem pengapian standar dengan pengapian yang menggunakan booster. Prosentase penurunan rerata konsumsi bahan bakar spesifik (sfc sebesar 6.99%. Pada sistem pengapian yang menggunakan booster, sfc minimum sebesar 0.219 kg/kWh pada putaran mesin 2200 rpm. Pada pengapian standar sfc minimum sebesar 0.231 kg/kWh pada putaran mesin 2400 rpm.

  6. Pengembangan bahan Pembelajaran Berbantuan komputer (PBK untuk Memfasilitasi Active Learning dalam Mata Kuliah Landasan Kependidikan

    Directory of Open Access Journals (Sweden)

    Surtikanti Surtikanti

    2005-12-01

    Full Text Available Penelitian ini bertujuan untuk: (1 mengembangkan software PBK mata kuliah Landasan Kependidikan sebagai salah satu sumber media alternatif dalam rangka mencapai efektivitas, efisiensi dan daya tank untuk belajar; (2 menerapkan prinsip-prinsip desain pembelajaran (in­structional design dalam software pembelajaran Landasan Kependidikan; (3 Menentukan kelayakan produk pembelajaran landasan kependidikan berbantuan komputer agar dapat memfasilitasi active learning. Subjek penelitian terdiri dari 2 orang, (1 orang ahli mated dan 1 orang ahli media, 6 orang mahasiswa untuk uji coba kelompok kecil, dan 20 orang mahasiswa untuk uji coba lapangan. Data yang dijaring sesuai dengan jenisnya. Data kuantitatif dianalisis dengan statistik deskriptif sedangkan data kualitatif dengan naratif deskriptif. Hasil penelitian menunjukkan, bahwa: (1 Bahan PBK yang dirancang efektif digunakan untuk mencapai tujuan pembelajaran; (2 Bahan PBK memiliki efisiensi waktu yang tinggi dalam penyampaian isi pembelajaran; (3 Bahan PBK yang digunakan memiliki daya tarik yang tinggi; (4 isi program PBK sesuai dengan prinsip-prinsip desain pembelajaran; dan (5 program PBK ini dapat memfasilitasi strategi active learning. Kata kunci: pembelajaran berbantuan komputer, strategi active learning.

  7. WebSelF: A Web Scraping Framework

    DEFF Research Database (Denmark)

    Thomsen, Jakob; Ernst, Erik; Brabrand, Claus;

    2012-01-01

    We present, WebSelF, a framework for web scraping which models the process of web scraping and decomposes it into four conceptually independent, reusable, and composable constituents. We have validated our framework through a full parameterized implementation that is flexible enough to capture...... previous work on web scraping. We have experimentally evaluated our framework and implementation in an experiment that evaluated several qualitatively different web scraping constituents (including previous work and combinations hereof) on about 11,000 HTML pages on daily versions of 17 web sites over...... a period of more than one year. Our framework solves three concrete problems with current web scraping and our experimental results indicate that com- position of previous and our new techniques achieve a higher degree of accuracy, precision and specificity than existing techniques alone....

  8. Desain Motor Bakar Bensin Untuk Mencapai Persyaratan Standar Polusi Dan Penghematan Bahan Bakar

    Directory of Open Access Journals (Sweden)

    Hendrata Suhada

    2002-01-01

    Full Text Available Fuel consumption of an engine is one of the most important factors for a car, the economy of a car is determined by the engine thirst. Every car driver expects to drive a car with less consumption. Differences in how a car is operated, make a different in result too, car used with maximum power and full speed for longer run is not the same as using it for city drive, which might have to make a lot of car stop. Such drive conditions will effect the fuel consumption. Control of the mixture and the timing to inject the fuel between full load and low running load or idle should be different. Because of the pollution which create more and more problem, especially from car's engine, government and environment controller have instructed designer and manufacturer of cars to commit the regulation regarding air pollution. Standard have been design to reach the condition where the components of pollutant should be minimized until it reach a zero level. To meet that expectation, a lot of changes have been made in the past until now, such as the use of light material, different type of fuel injection, using variable control of valve lift and valve timing. Abstract in Bahasa Indonesia : Ekonomis atau tidaknya suatu kendaraan bermotor dapat diukur dari banyaknya bahan bakar yang dipakai untuk mengoperasikan kendaraan tersebut. Setiap pemakai tentunya mengharapkan dapat memiliki kendaraan yang hemat bahan bakar. Pengoperasian kendaraan biasanya tidak akan mencapai hasil yang sama untuk segala kondisi operasi, misalnya operasi kendaraan pada kecepatan penuh sangat berbeda dengan kendaraan yang dioperasikan di dalam kota yang sering berhenti. Hal ini sangat menentukan pemakaian bahan bakar. Pengaturan pencampuran dan masuknya bahan bakar ke dalam silinder perlu dibedakan, antara operasi beban penuh dan operasi beban rendah atau menengah. Keadaan lingkungan yang makin menguatirkan, disebabkan oleh polusi udara dari kendaraan bermotor, mewajibkan para perencana dan

  9. PENGGUNAAN BAHAN AJAR DENGAN PENDEKATAN ANDRAGOGI SEBAGAI UPAYA MENINGKATKAN KREATIVITAS DAN HASIL BELAJAR SISWA SMA RSBI

    Directory of Open Access Journals (Sweden)

    M. Umriyah

    2012-05-01

    Full Text Available Andragogi merupakan teori pembelajaran orang dewasa. Konsep pembelajaran orang dewasa merupakan pembelajaran yang berpola non otoriter. Berdasarkan ciri-ciri biologis maupun psikologis sebagian besar siswa SMA telah memasuki usia dewasa, sehingga pendekatan andragogi agaknya lebih sesuai. Penelitian ini merupakan penelitian pengembangan yaitu mengembangkan bahan ajar dengan pendekatan andragogi, bertujuan untuk memperoleh bahan ajar yang dapat meningkatkan kreativitas dan hasil belajar siswa. Subyek penelitian adalah siswa  kelas X-2 SMA Islam Sudirman Ambarawa tahun pelajaran 2010/2011. Pengambilan data dilakukan dengan metode dokumentasi, observasi dan  test hasil belajar.  Hasil penelitian menunjukkan bahwa dengan digunakannya bahan ajar dengan pendekatan andragogi, skor kreativitas  dan hasil test kognitif siswa rata-rata meningkat.Andragogy is adult learning theory. Adult learning concept is learning activity that gets to pattern non authoritarian. Based on biological characteristics and also psychological a large part Senior High School students  have entered adult age, so pedagogy approach (education for children was not suitable anymore for them, it seems that andragogy (education for adult is more suitable. This research is development research which develop learning material in andragogy approach, has an aim to get a learning material that can develop creativity and studying result. The research is executed in X2 class at Sudirman Islamic Senior High School of Ambarawa, academic year 2010 / 2011 which is chosen bases random sampling. Data taking is done by documentation method, observation and learning result test.  Data analysis  indicate   an  improving  of average  value  in creativity and learning result.

  10. Effect of 11 months of yoga training on cardiorespiratory responses during the actual practice of Surya Namaskar

    Directory of Open Access Journals (Sweden)

    Biswajit Sinha

    2014-01-01

    Full Text Available Background: Surya Namaskar (SN, a popular traditional Indian yogic practice, includes practicing 12 physical postures with alternate forward and backward bending movement of the body along with deep breathing maneuvers. The practice of SN has become popular among yoga practitioners and other fitness conscious people. The long-term effect of practicing SN and other yogic practices on cardiorespiratory responses during SN are lacking. Aim: The present study was conducted to study the effect of yogic training on various cardiorespiratory responses during the SN practice in yoga trainees after a time interval of 3, 6, and 11 months. Materials and Methods: The present study was conducted on 9 healthy male Army soldiers who underwent training in various yoga postures including SN, meditation, and pranayama for 1 h daily for 11 months. First, second, and third phase of the study was conducted in the laboratory after completion of 3, 6, and 11 months of the yoga training. The participants performed SN along with other yogic practices in the laboratory as per their daily practice schedule. The cardiorespiratory responses of the volunteers were recorded during actual practice of SN. Statistical Analysis: One-way repeated measure ANOVA followed by Tukey HSD. Results: Oxygen consumption and heart rate during actual practice of SN was 0.794 ± 0.252, 0.738 ± 0.229, and 0.560 ± 0.165 L/min and 92.1 ± 11.6, 97.9 ± 7.3 and 87.4 ± 9.2 beats/min respectively at 1 st , 2 nd , and 3 rd phase of yoga training. Minute ventilation and tidal volume also reduced from 19.9 ± 4.65 to 17.8 ± 4.41 L/min and 1.091 ± 0.021 to 0.952 L/breath from 1 st phase to 3 rd phase of yoga training. However, respiratory parameters like breathing rate (f R did not show any reduction across the three phases. Conclusion: The results of the present study indicated that yogic training caused conditioning of cardiorespiratory parameters except f R, which did not reduce across three

  11. PENINGKATAN DAYA SAING INDUSTRI MELALUI ANALISA BIAYA KUALITAS (Studi Kasus pada Perusahaan Bahan Baku Makanan

    Directory of Open Access Journals (Sweden)

    Felecia Felecia

    2004-01-01

    Full Text Available This article is about quality costs analysis to improve industrial competitiveness, through a study case at food ingredients industry. The purpose of this quality costs analysis is to know quality cost resources which are not efficient. The first condition shows that 90% of total quality costs is used as prevention cost and 8% as internal failure cost. The final condition after analysis and improvement shows no more internal failure and the average quality costs is reduced by 9.66%. Abstract in Bahasa Indonesia : Artikel ini membahas tentang analisa biaya kualitas untuk peningkatan daya saing industri, studi kasus di sebuah industri bahan baku makanan. Tujuan dari analisa biaya kualitas adalah untuk mengetahui sumber-sumber biaya kualitas yang tidak effisien. Kondisi awal perusahaan menunjukkan bahwa 90% dari total biaya kualitas digunakan sebagai biaya pencegahan, dan 8% sebagai biaya kegagalan internal. Kondisi akhir setelah dilakukan analisa dan perbaikan adalah tidak lagi ditemukan biaya kegagalan internal dan rata-rata biaya kualitas perusahaan secara umum menurun sebesar 9.66%. Kata kunci: analisa biaya kualitas, industri bahan baku makanan.

  12. Penggunaan Minyak Nabati Sebagai Bahan Bakar Alternatif Pada Motor Diesel Sistim Injeksi Langsung

    Directory of Open Access Journals (Sweden)

    Ricky Winaya

    2002-01-01

    Full Text Available Vegetable oil as an example product of agricultural engineering, has potential to be developed to renewable energy called bio-diesel. This paper describes comparison study performance from a direct injection system diesel-engine fueled with composition 20%, 30% and 40% bio-diesel, with diesel engine fueled diesel oil (solar. The test results have shown that the engine fueled with 20%, 30%, and 40% bio-diesel produce slightly lower torque and power than the same engine fueled with solar. The other research before, the emission test results have shown a lower particulate matter, hydrocarbon and carbon monoxide from exhaust. Abstract in Bahasa Indonesia : Minyak nabati sebagai suatu contoh produk dalam bidang rekayasa pertanian, berpotensi untuk dikembangkan menjadi suatu bentuk energi bahan bakar yang terperbaharui yang disebut dengan bio-disel. Tulisan ini membahas tentang studi perbandingan performansi motor disel sistim injeksi langsung berbahan bakar dengan komposisi 20%, 30% dan 40% bio-disel, dengan yang berbahan bakar minyak diesel (solar. Hasil pengujian menunjukkan bahwa motor disel yang menggunakan bahan bakar dengan komposisi 20%, 30% dan 40% biodisel menghasilkan torsi dan daya yang lebih rendah daripada motor yang sama berbahan bakar solar. Hasil penelitian sebelumnya, hasil uji emisi menujukkan adanya partikel, hidrokarbon dan karbon monoksida yang lebih rendah pada saluran buang. Kata kunci: Minyak nabati, Biodisel, Torsi, daya.

  13. Optimization of biodegradable plastic production on sugar cane molasses in Enterobacter sp. SEL2

    OpenAIRE

    Nighat Naheed; Nazia Jamil

    2014-01-01

    Contaminated environments have a large number of bacteria which can accumulate PHA as their energy reserves. Out of 54 isolated bacterial strains from three groups of contaminated sites 48 were found PHA positive. The sites were grouped on the basis of the type of carbon sources i.e. sugars, fatty acids and much diverse type. Strains MFD5, MFD11, UML3, USL2, SEL2, SEL3, SEL10 and PFW1 produced 69.9 ± 0.29, 75.27 ± 0.45, 65.43 ± 0.1, 72.54 ± 0.27, 76.61 ± 0.28, 61.81 ± 0.05, 71.16 ± 0.09 and 7...

  14. SelInv - An Algorithm for Selected Inversion of a Sparse Symmetric Matrix

    Energy Technology Data Exchange (ETDEWEB)

    Lin, Lin; Yang, Chao; Meza, Juan C.; Lu, Jianfeng; Ying, Lexing; E, Weinan

    2009-10-16

    We describe an efficient implementation of an algorithm for computing selected elements of a general sparse symmetric matrix A that can be decomposed as A = LDL^T, where L is lower triangular and D is diagonal. Our implementation, which is called SelInv, is built on top of an efficient supernodal left-looking LDL^T factorization of A. We discuss how computational efficiency can be gained by making use of a relative index array to handle indirect addressing. We report the performance of SelInv on a collection of sparse matrices of various sizes and nonzero structures. We also demonstrate how SelInv can be used in electronic structure calculations.

  15. Optimization of biodegradable plastic production on sugar cane molasses in Enterobacter sp. SEL2.

    Science.gov (United States)

    Naheed, Nighat; Jamil, Nazia

    2014-01-01

    Contaminated environments have a large number of bacteria which can accumulate PHA as their energy reserves. Out of 54 isolated bacterial strains from three groups of contaminated sites 48 were found PHA positive. The sites were grouped on the basis of the type of carbon sources i.e. sugars, fatty acids and much diverse type. Strains MFD5, MFD11, UML3, USL2, SEL2, SEL3, SEL10 and PFW1 produced 69.9 ± 0.29, 75.27 ± 0.45, 65.43 ± 0.1, 72.54 ± 0.27, 76.61 ± 0.28, 61.81 ± 0.05, 71.16 ± 0.09 and 74.92 ± 0.5 percent of PHA to their constant cell weight (CCW) respectively in PHA detection media supplemented with 2% glucose. Molasses, whey, crumbs hydrolysate and palm oil were checked as inexpensive carbon sources. Molasses alone could supply the required nutrients for growth and PHA production. Strain SEL2 produced 47.36 ± 0.45% PHA using 2% molasses at 37 °C and pH 7.0. Upon production optimization the best accumulation (80.95 ± 0.01%) was observed in PHA detection media with 0.2% nitrogen source, 3% molasses, pH 5.0 and 37 °C by the strain SEL2. The overall effect of the presence of increased molasses concentration in the media was positive it increased the accumulation period till 72 h. Enterobacter sp. SEL2 (JF901810) is first time being reported for PHA production. PMID:25242924

  16. Optimization of biodegradable plastic production on sugar cane molasses in Enterobacter sp. SEL2

    Directory of Open Access Journals (Sweden)

    Nighat Naheed

    2014-06-01

    Full Text Available Contaminated environments have a large number of bacteria which can accumulate PHA as their energy reserves. Out of 54 isolated bacterial strains from three groups of contaminated sites 48 were found PHA positive. The sites were grouped on the basis of the type of carbon sources i.e. sugars, fatty acids and much diverse type. Strains MFD5, MFD11, UML3, USL2, SEL2, SEL3, SEL10 and PFW1 produced 69.9 ± 0.29, 75.27 ± 0.45, 65.43 ± 0.1, 72.54 ± 0.27, 76.61 ± 0.28, 61.81 ± 0.05, 71.16 ± 0.09 and 74.92 ± 0.5 percent of PHA to their constant cell weight (CCW respectively in PHA detection media supplemented with 2% glucose. Molasses, whey, crumbs hydrolysate and palm oil were checked as inexpensive carbon sources. Molasses alone could supply the required nutrients for growth and PHA production. Strain SEL2 produced 47.36 ± 0.45% PHA using 2% molasses at 37 °C and pH 7.0. Upon production optimization the best accumulation (80.95 ± 0.01% was observed in PHA detection media with 0.2% nitrogen source, 3% molasses, pH 5.0 and 37 °C by the strain SEL2. The overall effect of the presence of increased molasses concentration in the media was positive it increased the accumulation period till 72 h. Enterobacter sp. SEL2 (JF901810 is first time being reported for PHA production.

  17. Efek Antiproliferatif Ekstrak N-Heksan Daun Bangun-Bangun (Plectranthus amboinicus, (Lour.) Spreng.) Terhadap Sel MCF7

    OpenAIRE

    Hasibuan, Poppy Anjelisa Z.; Rosidah; Ilyas, Syafruddin; Nasution, M.Pandapotan

    2016-01-01

    Mutasi onkogen dapat memicu terjadinya suatu mekanisme untuk membatasi perluasan atau perbanyakan sel, dengan penekanan proliferasi. Pada kondisi kanker, terjadi gangguan keseimbangan antara apoptosis dan proliferasi sehingga besar kemungkinan akan menyebabkan progresi tumor. Daun Bangun-Bangun (Plectranthus amboinicus, (Lour.) Spreng.) mengandung triterpenoid yang berkhasiat antikanker. Penelitian ini bertujuan untuk menguji kinetika proliferasi sel kanker payudara MCF7 akibat pe...

  18. Perbedaan Pengaruh Pemberian Bahan Remineralisasi Yang Mengandung Flour Dengan Casein Phosphopeptide-Amorphous Calsium Phosphate (CPP-ACP) Terhadap Kekerasan Permukaan Enamel Gigi

    OpenAIRE

    Medina, Fitri

    2015-01-01

    Fluor dan Casein Phosphopeptide - Amourphous Calsium Phosphate (CPP-ACP) merupakan agen antikariogenik. Fluor merupakan bahan remineralisasi yang paling sering digunakan sebagai bahan aktif dalam agen remineralisasi. Efek samping yang sering ditimbulkan oleh pemakaian fluor antara lain, terjadi perubahan warna gigi menjadi bercak putih dan terjadi hipoflasi yang menyebabkan bentuk estetis yang kurang baik. Agen remineralisasi lain seperti CPP-ACP memiliki kelebihan yaitu dapat menstabilkan ka...

  19. Edule pani aluse Ösel Foodsi aktsiamüük / Indrek Kald

    Index Scriptorium Estoniae

    Kald, Indrek, 1974-

    2004-01-01

    Ilmunud ka: Äripäev : Eesti Edukamad Ettevõtted : Maakondlikud edetabelid Top 100, 26. nov. 2004, lk. 23. TOP-i 1. koht. OÜ Saarte Investeering edu põhjuseks on firma omaniku Tullio Libliku poolt Ösel Foods'i aktsiate müügist saadud raha kinnisvaraarendusse paigutamine. Diagramm

  20. Crystal structure of the full-length bacterial selenocysteine-specific elongation factor SelB.

    Science.gov (United States)

    Itoh, Yuzuru; Sekine, Shun-Ichi; Yokoyama, Shigeyuki

    2015-10-15

    Selenocysteine (Sec), the 21(st) amino acid in translation, uses its specific tRNA (tRNA(Sec)) to recognize the UGA codon. The Sec-specific elongation factor SelB brings the selenocysteinyl-tRNA(Sec) (Sec-tRNA(Sec)) to the ribosome, dependent on both an in-frame UGA and a Sec-insertion sequence (SECIS) in the mRNA. The bacterial SelB binds mRNA through its C-terminal region, for which crystal structures have been reported. In this study, we determined the crystal structure of the full-length SelB from the bacterium Aquifex aeolicus, in complex with a GTP analog, at 3.2-Å resolution. SelB consists of three EF-Tu-like domains (D1-3), followed by four winged-helix domains (WHD1-4). The spacer region, connecting the N- and C-terminal halves, fixes the position of WHD1 relative to D3. The binding site for the Sec moiety of Sec-tRNA(Sec) is located on the interface between D1 and D2, where a cysteine molecule from the crystallization solution is coordinated by Arg residues, which may mimic Sec binding. The Sec-binding site is smaller and more exposed than the corresponding site of EF-Tu. Complex models of Sec-tRNA(Sec), SECIS RNA, and the 70S ribosome suggest that the unique secondary structure of tRNA(Sec) allows SelB to specifically recognize tRNA(Sec) and characteristically place it at the ribosomal A-site. PMID:26304550

  1. Perubahan Dimensi Hasil Cetakan Bahan Cetak Alginat Setelah Direndam Dalam Larutan Ekstrak Buah Mengkudu 10% (Morinda citrifollia L.)

    OpenAIRE

    Sulaiman, Dedi

    2014-01-01

    Imbibisi merupakan salah satu sifat dari alginat yang mempunyai pengaruh terhadap keakurasian hasil cetakan. Namun American Dental Association tetap menganjurkan untuk mendesinfeksi hasil cetakan. Buah mengkudu dapat digunakan sebagai bahan penghambat pertumbuhan bakteri. Tujuan penelitian adalah untuk mengetahui perubahan dimensi hasil cetakan alginat pada tinggi dan diameter alas die stone setelah direndam dalam larutan ekstrak buah mengkudu 10% selama 10, 15, 20 dan 25 menit. Sampel berupa...

  2. Kinerja Mesin Diesel Memakai Bahan Bakar Biodiesel Biji Karet dan Analisa Emisi Gas Buang

    Directory of Open Access Journals (Sweden)

    I Wayan Susila

    2010-01-01

    reactor (BCR tekanan atmosfir telah dilaporkan. Spesifikasi B-100 tersebut dipergunakan sebagai bahan bakar dalam penelitian ini yaitu: densitas 882 g/ml; viskositas kinematik 5,19 cSt; calculated cetane index (CCI 47,5; titik tuang –6oC; flash point 200 oC; residu karbon mikro dalam sampel asli 0,126% massa dan dalam 10% ampas distilasi 2,87% massa; sedimen 0,01% volume; temperatur distilasi 347oC; kandungan sulfur 0,72 ppm; angka asam 0,01 mgKOH/g; serta nilai kalor rendah 9184,43 kkal/kg. Biodiesel dicampur dengan solar (B-0 pada tingkat perbandingan tertentu sehingga diperoleh B-5, B-10, B-15, dan B-20 (B-5 adalah campuran antara biodiesel 5% serta solar 95%, dst dipergunakan sebagai bahan bakar pada mesin diesel stasioner. Kinerja mesin diesel dan emisi gas buang dibandingkan dengan mesin yang memakai solar (B-0. Mesin dioperasikan pada putaran konstan 1350, 1750, 2150, 2550, dan 2950 rpm. Hasil penelitian menunjukkan bahwa bahan bakar B-10 menghasilkan kinerja mesin terbaik pada putaran 2550 rpm. Pada putaran ini diperoleh daya maksimum sebesar 36,95 PS, konsumsi bahan bakar spesifik terendah sebesar 0,256 kg/(PS.jam, efisiensi termal 58,44%, kandungan CO terkecil sebesar 0,4%, dan opasitas gas buang 58,6% HSU memenuhi Peraturan Menteri Negara Lingkungan Hidup Nomor 5 tahun 2006, dan tidak perlu memodifikasi mesin. Jika dibandingkan dengan solar murni (B-0, B-10 lebih baik dari pada B-0 karena pada kondisi optimum menghasilkan kenaikan daya sebesar 1,8%, konsumsi bahan bakar spesifik sama 0,256 kg/(PS.jam, efesiensi termal naik 2,4%, kadar CO gas buang turun 80%, serta CO2 turun 55%. Kata kunci: Biodiesel, RSO, non-katalis, mesin diesel.

  3. PEMBUATAN MMC BERBASIS TEKNOLOGI METALURGI SERBUK DENGAN BAHAN BAKU ALUMINIUM DARI LIMBAH KALENG MINUMAN DAN ADITIF ABU SEKAM PADI

    Directory of Open Access Journals (Sweden)

    M. Akrom

    2012-01-01

    Full Text Available Komposit matriks logam (aluminium yang berasal dari limbah kaleng minuman dengan penguat partikel silikon karbida danpenguat tambahan abu sekam padi telah berhasil difabrikasi dengan metode teknologi metalurgi serbuk. Tujuan dari penelitian iniadalah merekayasa material baru yang murah akan tetapi memiliki mutu dan daya saing yang sangat baik. Penelitian ini terdiri daribeberapa tahap yakni, pembuatan bahan baku, pencampuran, pencetakan sampel, sintering dan pengujian. Dari hasil pengujianfisik diperoleh bahwa komposit matrik logam dengan penambahan abu sekam padi memiliki kerapatan lebih rendah dibandingkandengan komposit Al/SiC tanpa sekam padi, sedangkan sifat kekerasan dan kekuatannya jauh lebih besar dibandingkan Al/SiCtanpa penambahan abu sekam padi. Dari analisis XRD ditemukan bahwa terjadi penyebaran unsur utama Al, Si, senyawa SiC,serta timbul senyawa stabil MgAl O , Al O yang bersifat konstruktif yang dapat memberikan sifat mekanis yang baik bagi komposit,dan senyawa destruktif Al C yang bersifat korosif. Analisis SEM menunjukkan ukuran butiran partikel yang cenderung lebar danmemanjang, ikatan antar partikel penyusun bahan yang terbentuk cukup baik, sehingga memberikan sifat mekanis bahan yangbaik.Tidak tampaknya pori-pori bahan menunjukkan pula bahwa ikatan partikel antar bahan cukup baik. Metal (aluminium matrix composite originated from beverage can waste with carbide silicon particle reinforcement and additionalreinforcement of paddy chaff ash has been fabricated successfully by employing powder metallurgy technology method. Thepurpose of the research is to create a cheap new material, qualified and having high competitive value. This research wasconducted through several stages, those were making raw material, mixing, sample moulding, sintering, and testing. The result ofphysical test shows that metal matrix composite added by paddy chaff ash has lower density, stronger and bigger power comparedto Al/SiC composite without

  4. SEU/SEL Resistant Ultra-Low Power Asynchronous Processor Design for Low-Temperature Applications Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This Phase I SBIR proposal seeks funding to develop a radiation-hardened circuit architecture to achieve SEU and SEL immunity by using delay-insensitive...

  5. Multi-processing control system for the SEL 840MP (MPCS/1) users guide. Volume 2: Operations guide

    Science.gov (United States)

    1972-01-01

    The generation and operational use of the SEL 840MP multiprocessing control system (MPCS) are considered. System initialization, job task table generation, the MPCS command language, display library generation, and system error summary are reviewed.

  6. Expression of SEL1L and Smad4 Protein in Esophageal Cancer and its Significance%SEL1L蛋白、Smad4蛋白在食管癌中的表达及其意义

    Institute of Scientific and Technical Information of China (English)

    詹鹤琴; 张洪福; 曹立宇

    2007-01-01

    目的 观察SEL1L蛋白、Smad4蛋白在食管癌组织中的表达及其意义.方法 应用免疫组化S-P法检测90例食管鳞状细胞癌(esophageal squamous cell cancer,ESCC)、35例正常食管黏膜(normal esophageal mucosa,NEM)及20例食管不典型增生(esophageal dysplasia,ED)中SEL1L蛋白、Smad4蛋白的表达.结果 SEL1L蛋白在ESCC、ED的表达阳性率较NEM高(P<0.01);Smad4蛋白在ESCC的表达阳性率较NEM和ED低(P<0.01);ESCC中SEL1L蛋白和Smad4蛋白的表达呈明显负相关.结论 SEL1L蛋白过表达和Smad4蛋白低表达可能在食管癌发生发展中具有协同作用;联合检测食管癌中SEL1L蛋白和Smad4蛋白的表达,对于评估食管癌的发生、发展具有重要意义.

  7. ORELA data acquisition system hardware. Vol. 5. SEL 810B/PDP-4/PDP-9 intercomputer link

    International Nuclear Information System (INIS)

    A report is given describing the IOT assignments and programming for the PDP-4 and PDP-9, the ground isolation wiring, the connector pin assignments, a simplified theory of operation for the SEL 810B link interface, a detailed theory of operation for the link interfaces at the PDP-4 and the PDP-9, and the use of the PDP-4 and PDP-9 link interfaces as an input to the SEL 810B Four-Channel Priority Multiplexer

  8. RESPON IMMUN SEL INTERLEUKIN -4 (IL-4 PADA IKAN KERAPU TIKUS (Cromileptes altivelis YANG DIPAPAR PROTEIN IMUNOGENIK VIBRIO HARVEYI

    Directory of Open Access Journals (Sweden)

    Uun Yanuhar

    2011-10-01

    Full Text Available Tujuan penelitian ini adalah untuk melihat ekspresi molekul sel interleukin-4 (IL-4 pada ikan kerapu tikus (Cromileptes altivelis yang dipapar oleh protein imunogenik Vibrio harveyi sebagai salah satu reson immune seluler. Metode yang digunakan dalam penelitian ini adalah metode eksperimen yaitu mengadakan percobaan untuk melihat suatu hasil. Prosedur penelitian meliputi isolasi protein imunogenik Vibrio harveyi, elektroforesis SDS-PAGe protein Vibrio harveyi, separasi protein dan pemotongan pita protein, elektroelusi dan dialisa, uji klinis protein imunogenik Vibrio harveyi, dan selanjutnya pemeriksaan imunositokimia untuk melihat ekspresi sel imun (sel IL-4 dengan menggunakan pelabelan secondary antibodi anti IL-4 conjugate biotin . Hasil penelitian menunjukkan bahwa pita protein imunogenik Vibrio harveyi yang ditemukan bersifat imunogenik adalah berat molekul 51,16 kDa, dan hasil uji invivo secara injeksi intraperitoneal pada ikan kerapu tikus (Cromileptes altivelis uji dengan dosis 31,6 ug protein/150 g berat ikan kerapu. Ikan kerapu uji in vivo dari hasil perlakuan yang telah dipapar dengan protein imunogenik V. harveyi 51,16 kDa menunjukkan bahwa respon imun seluler dari sel immune IL-4 yang dideteksi dengan metode imunositokimia dengan menggunakan pelabelan secondary antibody anti IL-4 conjugate biotin pada sel secara invivo ditunjukkan oleh warna coklat keemi V. harveyi 51,kDa sebagai Kesimpulan penelitian ini adalah bahwa ikan kerapu yang dipapar protein imunogenik berat molekul 51,16 kDa secara in vivo mampu membangkitkan respon immune seluler yakni terbentuknya respon sel IL-4, pada ikan sel immune IL-4 berperan sebagai pertahanan sistem immune seluler terhadap serangan infeksi pathogen. Kata Kunci: Cromileptes altivelis, Immunosikimia, Sel interleukin-4 (IL-4 , Vibrio harveyi 

  9. PENGOLAHAN BIJI MAHONI (Swietenia Macrophylla King SEBAGAI BAHAN BAKU ALTERNATIF BIODIESEL

    Directory of Open Access Journals (Sweden)

    Astrilia Damayanti

    2013-05-01

    Full Text Available Peningkatan kebutuhan minyak bumi yang terus menerus akan mengakibatkan kelangkaan bahan bakar minyak. Sumber energi alternatif yang ramah lingkungan, salah satunya adalah biodiesel. Bahan baku potensial untuk memproduksi biodiesel yang tidak bersaing dengan bahan baku pangan contohnya adalah biji mahoni (swietenia macrophylla king. Tahapan yang diperlukan dalam percobaan biodiesel adalah proses pengambilan minyak biji mahoni dengan proses penyangraian, degumming, dan proses transesterifikasi. Alat yang diperlukan dalam pembuatan biodiesel yaitu: labu alas bulat dilengkapi kondensor, gelas ukur, pengaduk magnetik, alat-alat gelas lab, dan lain sebagainya. Proses pengambilan minyak dilakukan dengan penyangraian yang hasilnya di degumming dengan asam fosfat 5% b/b pada suhu 80ºC selama 15 menit. Degumming bertujuan untuk menghilangkan getah, lendir, protein, resin dan gum. Proses kedua yaitu transesterifikasi dengan metanol 1:6 (minyak dan mtanol dengan KOH 0,1 N pada suhu 60ºC selama 1 jam. Setelah diperoleh metil ester, dilakukan proses pencucian atau penetralan metil ester pada suhu pemanasan 104ºC untuk menghilangkan kadar airnya. Dari hasil percobaan diperoleh rendemen minyak sebesar 86,92%, uji densitas 874,08 kg/m³, viskositas 3,07 mm2/s, dan bilangan asam 0,5601 mg KOH/g. Metil ester yang dihasilkan telah sesuai dengan SNI-04-7182-2006. An increased demand of the fossil fuel would lead to scarcity of the fossil fuel in the future. An alternative of environmentally friendly energy sources is biodiesel. It is accounted that the resources for producing biodiesel should not compete with food raw materials, such as mahogany grain, (swietenia macrophylla king. The necessary steps in the experiment of producing biodiesel are process of taking the mahogany seed-oil by using roasting method, degumming, and transesterification process. The required equipments for producing biodiesel were round-bottom flask equipped with condenser

  10. SINTESIS LAPIS TIPIS BERBASIS NANOPARTIKEL TITANIA TERMODIFIKASI SILIKA SECARA SOL-GEL SEBAGAI BAHAN ANTIFOGGING

    Directory of Open Access Journals (Sweden)

    L.V. Rissa

    2012-09-01

    Full Text Available Telah dilakukan penelitian tentang sintesis lapis tipis berbasis nanopartikel titania termodifikasi silika (TiO2-SiO2 secara sol-gel sebagai bahan antifogging untuk (i mengetahui pengaruh temperatur kalsinasi terhadap energi band-gap, struktur dan ukuran kristal, serta porositas titania-silika, (ii mengetahui pengaruh komposisi sol terhadap karakteristik lapis tipis titania-silika yang meliputi hidrofilitas dan sifat transparan, serta (iii mengetahui kinerja antifogging lapis tipis titania-silika pada substrat kaca. Sintesis dilakukan melalui  metode sol-gel. Teknik pelapisan pada kaca menggunakan teknik celup, kemudian diaplikasikan sebagai bahan anti-kabut. Hasil sintesis TiO2-SiO2 dikarakterisasi dengan XRD untuk mengetahui struktur dan ukuran kristal, SEM-EDX untuk mengetahui morfologi dan komposisi padatan, serta DR-UV untuk mengetahui band-gap TiO2-SiO2. Hasil karakterisasi menunjukkan bahwa TiO2-SiO2 dengan 15% b/b silika  pada temperatur kalsinasi 500°C memiliki ukuran partikel dan band gap optimum  yaitu masing-masing sebesar 11,15 nm dan  3,20 eV. Hasil ini bersesuaian dengan hasil pengukuran sudut kontak minimum yaitu sebesar sebesar 14,49°. Hasil uji kinerja antifogging menunjukkan bahwa lapis tipis TiO2-SiO2 memiliki kemampuan untuk digunakan sebagai bahan anti-kabut. The research on synthesis of thin layer Based on TiO2 nanoparticle modified silica by sol gel as antifogging materials has been conducted to (i determine the effect of calcination temperature on the gap energy, structure and size of crystal, and porous titania-silica, (ii determine the effect of sol composition on thin layer titania-silica covering hydrophilic and transparent character, and (iii determine the performance of antifogging thin layer titania-silica on glass substrate. The synthesis is done by using sol-gel method. Dye technique was used to coat the glass, and then applied as antifogging materials. The result of synthesis of TiO2-SiO2

  11. Mutations in genes involved in nonsense mediated decay ameliorate the phenotype of sel-12 mutants with amber stop mutations in Caenorhabditis elegans

    Directory of Open Access Journals (Sweden)

    Aubert Sylvie

    2009-03-01

    Full Text Available Abstract Background Presenilin proteins are part of a complex of proteins that can cleave many type I transmembrane proteins, including Notch Receptors and the Amyloid Precursor Protein, in the middle of the transmembrane domain. Dominant mutations in the human presenilin genes PS1 and PS2 lead to Familial Alzheimer's disease. Mutations in the Caenorhabditis elegans sel-12 presenilin gene cause a highly penetrant egg-laying defect due to reduction of signalling through the lin-12/Notch receptor. Mutations in six spr genes (for suppressor of presenilin are known to strongly suppress sel-12. Mutations in most strong spr genes suppress sel-12 by de-repressing the transcription of the largely functionally equivalent hop-1 presenilin gene. However, how mutations in the spr-2 gene suppress sel-12 is unknown. Results We show that spr-2 mutations increase the levels of sel-12 transcripts with Premature translation Termination Codons (PTCs in embryos and L1 larvae. mRNA transcripts from sel-12 alleles with PTCs undergo degradation by a process known as Nonsense Mediated Decay (NMD. However, spr-2 mutations do not appear to affect NMD. Mutations in the smg genes, which are required for NMD, can restore sel-12(PTC transcript levels and ameliorate the phenotype of sel-12 mutants with amber PTCs. However, the phenotypic suppression of sel-12 by smg genes is nowhere near as strong as the effect of previously characterized spr mutations including spr-2. Consistent with this, we have identified only two mutations in smg genes among the more than 100 spr mutations recovered in genetic screens. Conclusion spr-2 mutations do not suppress sel-12 by affecting NMD of sel-12(PTC transcripts and appear to have a novel mechanism of suppression. The fact that mutations in smg genes can ameliorate the phenotype of sel-12 alleles with amber PTCs suggests that some read-through of sel-12(amber alleles occurs in smg backgrounds.

  12. Viabilitat de l'ús del biodièsel a Catalunya

    OpenAIRE

    Benach Duart, Anna

    2005-01-01

    El present projecte pretén donar una visió global del món del biodièsel a la Península Ibèrica i,en particular, a Catalunya. Amb aquest fi, s’estructura en quatre eixos de treball, que són: Estudi dels cultius amb finalitat energètica susceptibles de ser emprats a la Península Ibèrica. Els més adequats són el gira-sol i el card Cynara Cardunculus. El rendiment mitjà per hectàrea de cultiu és d’uns 375 i 289 litres de biodièsel respectivament. Reacció de transesterificació per ...

  13. Crystallization and preliminary X-ray crystallographic analysis of Aquifex aeolicus SelA, a bacterial selenocysteine synthase

    International Nuclear Information System (INIS)

    The bacterial selenocysteine synthase SelA from Aquifex aeolicus was crystallized and the diffraction resolution was improved by lysine-residue methylation, truncation of N-terminal region (ΔN), and Lys-to-Ala point mutations. Phases were determined by using a selenomethionine-substituted crystal of the ΔN mutant. Selenocysteine (Sec), the 21st amino acid, is synthesized on its specific tRNA (tRNASec) via a multi-step process. In bacteria, tRNASec is ligated first with serine by seryl-tRNA synthetase, which is followed by Ser-to-Sec conversion by Sec synthase (SelA). To elucidate its structure and catalytic mechanism, Aquifex aeolicus SelA was crystallized. Although wild-type SelA crystals diffracted X-rays poorly (to up to 8 Å resolution), the resolution was improved by introducing a quadruple point mutation targeting the loop regions and by methylating the lysine residues, which yielded 3.9 Å resolution diffraction data from a full-length SelA crystal. Truncation of the N-terminal region (ΔN) also improved the resolution. A 3.3 Å resolution data set for phase determination was obtained from a crystal of selenomethionine-substituted Lys-methylated SelA-ΔN

  14. PEMBELAJARAN BERBASIS PROYEK UNTUK MENGEMBANGKAN ALAT PERAGA IPA DENGAN MEMANFAATKAN BAHAN BEKAS PAKAI

    Directory of Open Access Journals (Sweden)

    A. Widiyatmoko

    2012-04-01

    Full Text Available Tujuan penelitian ini adalah untuk mengembangkan dan memproduksi alat peraga IPA melalui pembelajaran berbasis proyek dengan memanfaatkan bahan bekas pakai. Temuan dosen menunjukkan bahwa mahasiswa ketika diberikan penugasan memproduksi/memodifikasi alat peraga IPA mengalami kesulitan. Sebagian besar mahasiswa mengumpulkan desain produk penugasan bukan hasil karya sendiri atau kelompok, melainkan hasil penelusuran internet. Dari penilaian hasil penugasan, kurang dari 25% mahasiswa yang mendapatkan nilai ≥ 75. Penelitian ini dilakukan di Prodi Pendidikan IPA FMIPA Unnes dengan sasaran mahasiswa semester V rombel 3 yang berjumlah 30 orang. Hasil penelitian menunjukkan bahwa dengan menggunakan pembelajaran proyek mahasiswa telah mampu mengembangkan dan menghasilkan alat peraga IPA dengan baik, dibuktikan dari penilaian laporan yang berisikan rancangan desain produk dengan rentang skor yang diperoleh antara 82 sampai dengan 92 dan dari penilaian produk yang telah dibuat mahasiswa lebih dari 85% telah mendapatkan kategori baik. Simpulan dari penelitian ini adalah penerapan pembelajaran berbasis proyek dapat mengembangkan alat peraga IPA dengan memanfaatkan bahan bekas pakai.This research is aimed to develop and produce science props through project based learning by using used goods. The lecturer found that the students had some difficulties to produce or modify the props. They submitted the props design that they downloaded from the internet. From the assignment score data, it is identified that less than 25% of student that got score ≥ 75. This research was conducted in Science Education Study Program Mathematics and Natural Science Semarang State University. The object of research was 30 students of fifth semester students. The research result shows that by using project based learning the students are able to develop and produce science props better than previous learning activity. It is proven by assessment report that consists of

  15. POROSITAS DAN PERMEABILITAS KOMPOSIT BERPORI DENGAN BAHAN DASAR LIMBAH KACA (CULT

    Directory of Open Access Journals (Sweden)

    MI Savitri

    2014-11-01

    Full Text Available Komposit berpori dengan bahan dasar limbah kaca dan Polyethylen Glycol  (PEG telah dihasilkan dengan metode pencampuran sederhana. Pori pada komposit terbentuk akibat PEG yang menguap ketika dipanaskan pada temperature 700oC selama 2,5 jam. Variasi pori dihasilkan dengan mengatur komposisi PEG yaitu 2%, 3%, 4%, 5%, 6%, 7%, 8%, dan 9%. Komposit berpori memiliki nilai porositas yang bertambah dengan kenaikan komposisi PEG. Komposit berpori memiliki porositas pada rentang 1% hingga 5% dan nilai permeabilitas komposit berpori yaitu (0.3-25x10-15 m2. Potensi komposit berpori sebagai filter air diujicobakan dengan mengalirkan limbah air sungai. Hasil pengujian diperoleh air dengan sifat fisis air bening dan tidak berbau, sehingga komposit berpori dari limbah kaca dapat menyaring air limbah.  {0>Komposit berpori dengan bahan dasar limbah kaca dan Polyethylen Glicol (PEG telah dihasilkan dengan metode pencampuran sederhana.<}0{>Porous composites from waste glass and Polyethylene Glycol (PEG have been synthesized by a simple mixing method.<0} {0>Pori pada komposit terbentuk akibat PEG yang menguap ketika dipanaskan pada temperature 700oC selama 2,5 jam.Variasi pori dihasilkan dengan mengatur komposisi PEG yaitu 2%, 3%, 4%, 5%, 6%, 7%, 8%, dan 9%.Komposit berpori memiliki nilai porositas yang bertambah dengan kenaikan komposisi PEG.<}0{>The pores of the composite were formed due to the evaporation of PEG when heated at temperature of 700oC for 2.5 hours. The pore variation may be obtained by adjusting the PEG composition, i.e. 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, and 9%. The porous composites have higher porosity because of the PEG composition.<0} {0>Komposit berpori memiliki porositas pada rentang 1% hingga 5% dan nilai permeabilitas komposit berpori yaitu (0.3-25x10-15m2.Potensi komposit berpori sebagai filter air diujicobakan dengan mengalirkan limbah air sungai.<}0{>Mesoporous composites have porosity ranging from 1% to 5% and the permeability has value

  16. SelSta - A Biologically Inspired Approach for Self-Stabilizing Humanoid Robot Walking

    OpenAIRE

    Jakimovski, Bojan; Kotke, Michael; Hörenz, Martin; Maehle, Erik

    2010-01-01

    International audience In this paper we elaborate a study on self-stabilizing humanoid robot that achieves run-time self-stabilization and energy optimized walking gait pattern parameters on different kinds of flat surfaces. The algorithmic approach named SelSta uses biologically inspired notions that introduce robustness into the self-stabilizing functionality of the humanoid robot. The approach has been practically tested on our S2-HuRo humanoid robot and the results from the tests demon...

  17. El biodiésel dentro de la biorrefinería. Nuevas estrategias

    OpenAIRE

    Botella, L; Bimbela, F.; Ábrego, J.; Gonzalo, A.; Sánchez, J. L.

    2014-01-01

    [EN] Biodiésel is, together with bioethanol, the biofuel that has reached a higher level of development and replacement of fossil fuels. Biodiesel is industrially produced from vegetable oils contained in oilseeds and plants by means of direct transesterification of triglycerides, using methanol and NaOH or KOH as catalysts. Although implementing the biodiesel production process within a biorefinery is feasible, some issues still need to be solved. EU regulations su...

  18. PENERAPAN MODEL PEMBELAJARAN BERBASIS MASALAH UNTUK PENINGKATAN HASIL BELAJAR SISWA PADA POKOK BAHASAN ELASTISITAS BAHAN

    Directory of Open Access Journals (Sweden)

    L. A. Kharida

    2012-01-01

    Full Text Available Penelitian ini bertujuan untuk memperoleh informasi peningkatan aktivitas belajar dan hasil belajar siswa melalui penerapan modelpembelajaran berbasis masalah di SMA Islam Sultan Agung 1 Semarang pada materi Elastisitas Bahan. Penelitian tindakan kelasini dilaksanakan dalam dua siklus. Teknik pengumpulan data hasil belajar kognitif dengan memberi tes tiap akhir siklus. Teknikobservasi untuk mendapatkan data aktivitas siswa dan aktivitas guru. Hasil penelitian menunjukkan bahwa penerapan modelpembelajaran berbasis masalah dapat meningkatkan aktivitas belajar dan hasil belajar siswa. Peningkatan rata-rata hasil belajarkognitif sebesar 0.26 atau 26%. Peningkatan rata-rata aktivitas belajar siswa sebesar 0.33 atau 33%. The study is aimed at acquiring information on improvement of student learning activities and outcome through the application ofproblem-based learning model in Sultan Agung Islamic High School Semarang on the elasticity subject. This class action study wasdone in two cycles. Data collection of cognitive learning outcomes was done by giving a test at the end of each cycle. Observationtechnique was done to collect data of students' and teachers' activities. Results show that problem-based learning method canincrease the learning activity and student learning outcomes. A cognitive learning outcome on average was increased at 0.26 or26%. Average student learning activity was increased at 0.33 or 33%.Keywords: Problem-based learning model; learning outcomes; material elasticity

  19. Crystallization and preliminary X-ray analysis of the mRNA-binding domain of elongation factor SelB in complex with RNA

    International Nuclear Information System (INIS)

    The mRNA-binding domain of M. thermoacetica selenocysteine-specific elongation factor SelB (residues 512–634, SelB-M) was overproduced in E. coli and its cognate mRNA ligand, 23 nucleotides of the SECIS RNA hairpin, was chemically prepared. The purified SelB-M–SECIS RNA complex has been crystallized in space group P21212 and diffracted to 2.3 Å

  20. Crystallization and preliminary X-ray crystallographic analysis of Aquifex aeolicus SelA, a bacterial selenocysteine synthase.

    Science.gov (United States)

    Itoh, Yuzuru; Sekine, Shun-ichi; Yokoyama, Shigeyuki

    2012-09-01

    Selenocysteine (Sec), the 21st amino acid, is synthesized on its specific tRNA (tRNA(Sec)) via a multi-step process. In bacteria, tRNA(Sec) is ligated first with serine by seryl-tRNA synthetase, which is followed by Ser-to-Sec conversion by Sec synthase (SelA). To elucidate its structure and catalytic mechanism, Aquifex aeolicus SelA was crystallized. Although wild-type SelA crystals diffracted X-rays poorly (to up to 8 Å resolution), the resolution was improved by introducing a quadruple point mutation targeting the loop regions and by methylating the lysine residues, which yielded 3.9 Å resolution diffraction data from a full-length SelA crystal. Truncation of the N-terminal region (ΔN) also improved the resolution. A 3.3 Å resolution data set for phase determination was obtained from a crystal of selenomethionine-substituted Lys-methylated SelA-ΔN. PMID:22949212

  1. Perancangan Sistem Kerja Proses Sortasi Bahan Olah Karet (Bokar) Di Pabrik Crumb Rubber Pt. Rubber Hock Lie Rantau Prapat – Sumatera Utara

    OpenAIRE

    Arisman

    2008-01-01

    Perancangan sistem kerja dapat dilakukan untuk kegiatan yang baru atau kegiatan yang sudah ada, dengan tujuan memperbaiki sistem kerjanya. Perbaikan sistem kerja dilakukan melalui analisa faktor – faktor sistem kerja yang meliputi faktor manusia, material atau bahan, mesin dan fasilitas kerja serta lingkungan tempat kerja. 037025001

  2. PENGEMBANGAN PASAR LELANG FORWARD KOMODITAS BAHAN OLAH KARET (BOKAR DI PROVINSI SUMATERA SELATAN

    Directory of Open Access Journals (Sweden)

    Heri Rahman

    2015-11-01

    Full Text Available Permintaan karet dunia terus meningkat sejalan dengan peningkatan kebutuhan industri karet global untuk negara-negara seperti Amerika Serikat, Jepang, Eropa, dan China. Potensi dan peluang dapat meningkatkan ekspor karet alam Indonesia, untuk meningkatkan pendapatan petani yang memproduksi bahan Karet (bokar, secara tidak langsung. Namun, kurangnya harga referensi dari karet rakyat di tingkat nasional, membuat para petani selalu dirugikan, karena harga cenderung ditentukan oleh pedagang dan produsen, dan membuat lemah posisi tawar petani, sehingga pengembangan lelang pasar ke depan menjadi potensi dan peluang untuk penjualan bokar yang dapat menguntungkan petani. Hasil penelitian menunjukkan bahwa pasar lelang forward dari bokar memiliki potensi dan peluang sebagai tempat yang baik untuk transaksi yang lebih menguntungkan untuk para petani. Melalui pasar lelang forward, petani diminta untuk bersedia dan mampu berkelompok, untuk menghasilkan kualitas bokar yang baik, sehingga nilai penjualan bokar ini lebih tinggi, karena dijual oleh kelompok dengan cara lelang. Abstract World rubber demand increased continuously in line with the increase in global rubber industry needs forthe countries like US, Japan, Europe, and China. The potential and opportunity should boost Indonesia's natural rubber exports, provide to increase the income of farmers that producing Material Rubber (bokar, indirectly. However, the lack of reference prices of rubber smallholder at the national level, made of the farmers always disadvantaged, because the prices tend to be determined by the traders and manufacturers, and made weak thebargaining position of farmers, so the development of forward auction market into the potential and opportunities for bokar’ssales that can benefit the farmers. The results showed that the forward auction market of bokar has the potential and opportunities as a good place for transaction that more profitable for farmers.Through the forward

  3. Examining Cultural Tourism Attractions for Foreign Visitors: The Case of Camel Wrestling in Selçuk (Ephesus)

    OpenAIRE

    Vedat Çalışkan

    2010-01-01

    This study focuses on the Camel Wrestling Festival in Selçuk, which has gained importance with its tourist appeal among traditional camel wrestling organizations in Western Anatolia. The study aimed to investigate those aspects of the Festival, which were found to be attractive for foreign visitors, and to evaluate the impacts of tourism on this traditional event. The study data were obtained from the surveys that were completed by 56 foreign visitors at the Camel Wrestling Festival in Selçuk...

  4. Molten salts in nuclear reactors; Les sels fondus dans les reacteurs nucleaires

    Energy Technology Data Exchange (ETDEWEB)

    Dirian, J.; Saint-James [Commissariat a l' Energie Atomique, Saclay (France).Centre d' Etudes Nucleaires

    1959-07-01

    Collection of references dealing with the physicochemical studies of fused salts, in particular the alkali and alkali earth halides. Numerous binary, ternary and quaternary systems of these halides with those of uranium and thorium are examined, and the physical properties, density, viscosity, vapour pressure etc... going from the halides to the mixtures are also considered. References relating to the corrosion of materials by these salts are included and the treatment of the salts with a view to recuperation after irradiation in a nuclear reactor is discussed. (author) [French] Bibliographie regroupant l'etude physico-chimique des sels fondus, en particulier des halogenures alcalins et alcalino-terreux. On etudie de nombreux systemes binaires, ternaires et quaternaires de ces halogenures avec des halogenures d'uranium, et de thorium. On etudie egalement les proprietes physiques des halogenures ou des melanges d'halogenures (densite, viscosite, tension de vapeur, etc...). On donne egalement des references quant a la corrosion des materiaux par ces sels, et le traitement de ceux-ci en vue de recuperation, apres irradiation dans un reacteur nucleaire. (auteur)

  5. Dimer-dimer interaction of the bacterial selenocysteine synthase SelA promotes functional active-site formation and catalytic specificity.

    Science.gov (United States)

    Itoh, Yuzuru; Bröcker, Markus J; Sekine, Shun-ichi; Söll, Dieter; Yokoyama, Shigeyuki

    2014-04-17

    The 21st amino acid, selenocysteine (Sec), is incorporated translationally into proteins and is synthesized on its specific tRNA (tRNA(Sec)). In Bacteria, the selenocysteine synthase SelA converts Ser-tRNA(Sec), formed by seryl-tRNA synthetase, to Sec-tRNA(Sec). SelA, a member of the fold-type-I pyridoxal 5'-phosphate-dependent enzyme superfamily, has an exceptional homodecameric quaternary structure with a molecular mass of about 500kDa. Our previously determined crystal structures of Aquifex aeolicus SelA complexed with tRNA(Sec) revealed that the ring-shaped decamer is composed of pentamerized SelA dimers, with two SelA dimers arranged to collaboratively interact with one Ser-tRNA(Sec). The SelA catalytic site is close to the dimer-dimer interface, but the significance of the dimer pentamerization in the catalytic site formation remained elusive. In the present study, we examined the quaternary interactions and demonstrated their importance for SelA activity by systematic mutagenesis. Furthermore, we determined the crystal structures of "depentamerized" SelA variants with mutations at the dimer-dimer interface that prevent pentamerization. These dimeric SelA variants formed a distorted and inactivated catalytic site and confirmed that the pentamer interactions are essential for productive catalytic site formation. Intriguingly, the conformation of the non-functional active site of dimeric SelA shares structural features with other fold-type-I pyridoxal 5'-phosphate-dependent enzymes with native dimer or tetramer (dimer-of-dimers) quaternary structures. PMID:24456689

  6. EKSTRAKSI TANNIN SEBAGAI BAHAN PEWARNA ALAMI DARI TANAMAN PUTRIMALU (MIMOSA PUDICA MENGGUNAKAN PELARUT ORGANIK

    Directory of Open Access Journals (Sweden)

    Tjukup Marnoto

    2012-05-01

    Full Text Available EXTRACTION OF TANNINS AS NATURAL DYES FROM PUTRIMALU (MIMOSA PUDICA PLANT USING VARIOUS ORGANIC SOLVENTS. Public awareness on using natural dyes has encouraged the extraction of tannins from putrimalu. Extraction was performed continuously using a Soxhlet apparatus. The parameter studied was the influence of solvent polarity on the amount of tannin and mass transfer coefficient. Tannin was extracted from ten grams of dried putrimalu plants using polar solvents (ethanol, acetone and methanol and a non-polar solvent (n-hexane. Extraction is considered complete when the concentration of tannins in the liquid is no longer changing with time. Liquid samples were withdrawn every 20 minutes interval for tannin analyses using Thin Layer Chromatography (TLC. The results showed that the maximum concentration of tannins in the extract (g/mL when extraction were performed using n-hexane was 0.0031, acetone (0.016, methanol (0.0274 and ethanol (0.044. From extract yield and mass transfer coefficient point of views, it can be concluded that the best solvent is ethanol. The relationship between tannin concentration in the ethanol 96% solvent and the time was expressed in term of mathematical equations             CAL=1.046(1-e-0.0213t with error was 3.6%. Where CAL is the concentration of tannins in the solvent (g/ml and t is the extraction time (minutes.  Kesadaran masyarakat untuk kembali menggunakan bahan pewarna alami mendorong dilakukannya ekstraksi tannin dari putrimalu. Ekstraksi dilakukan secara kontinyu menggunakan alat Soxhlet. Parameter yang dipelajari adalah pengaruh polaritas pelarut terhadap ekstrak tannin dan koefisien transfer massa. Tannin diekstrak dari sepuluh gram tanaman putrimalu kering menggunakan pelarut polar (etanol, aseton dan metanol dan pelarut non-polar n-heksana. Ekstraksi dianggap selesai jika konsentrasi tannin di dalam pelarut sudah tidak berubah. Tannin di dalam contoh cairan yang diambil setiap selang waktu 20

  7. Crystallization and preliminary X-ray crystallographic analysis of Aquifex aeolicus SelA, a bacterial selenocysteine synthase

    OpenAIRE

    Itoh, Yuzuru; Sekine, Shun-ichi; Yokoyama, Shigeyuki

    2012-01-01

    The bacterial selenocysteine synthase SelA from Aquifex aeolicus was crystallized and the diffraction resolution was improved by lysine-residue methylation, truncation of N-terminal region (ΔN), and Lys-to-Ala point mutations. Phases were determined by using a selenomethionine-substituted crystal of the ΔN mutant.

  8. An integrated approach to universal prevention: Independent and combined effects of PBIS and SEL on youths' mental health.

    Science.gov (United States)

    Cook, Clayton R; Frye, Megan; Slemrod, Tal; Lyon, Aaron R; Renshaw, Tyler L; Zhang, Yanchen

    2015-06-01

    Mental health among children and adolescents is a growing national concern and schools have taken center stage in efforts to prevent problems and promote wellness. Although research and policymakers support the integration of mental health services into the schools, there is limited agreement on the ways to package or combine existing supports to achieve prevention-oriented goals. Positive Behavioral Interventions and Supports (PBIS) and Social Emotional Learning (SEL) are 2 of the most widely adopted, evidence-based approaches that have been advocated to address student mental health. These universal prevention approaches, however, stem from different theoretical camps and are often advocated and implemented apart from one another. The purpose of this study was to examine the independent and combined effects of PBIS and SEL on student mental health outcomes. A quasi-randomized control design at the classroom level was used to make comparisons across 4 conditions: business-as-usual (BAU), PBIS alone, SEL alone, and COMBO condition with regard to their acceptability to teachers, integrity of program delivery, and student outcomes. As predicted, the COMBO condition produced significantly greater improvements in overall mental health and reductions in externalizing behaviors when compared to all other conditions. The results also indicated that the PBIS- and SEL-only conditions were both able to produce significant improvements in overall mental health functioning as compared with the BAU control. The implications of an integrated approach for school-based universal prevention and directions for future research are discussed. PMID:25602629

  9. Multi-processing control system for the SEL 840MP (MPCS/1) users guide. Volume 1: Programming guide

    Science.gov (United States)

    1972-01-01

    A programmer's manual is presented for the SEL 840MP multiprocessing control system MPCS. The topics discussed include task control; defining displays; MPCS calls for task control functions; MPCS calls and system interfaces for display functions; MPCS calls for input/output functions and services, file management, and utility services; and MPCS assembly language call sequence summary.

  10. Examining Cultural Tourism Attractions for Foreign Visitors: The Case of Camel Wrestling in Selçuk (Ephesus

    Directory of Open Access Journals (Sweden)

    Vedat Çalışkan

    2010-01-01

    Full Text Available This study focuses on the Camel Wrestling Festival in Selçuk, which has gained importance with its tourist appeal among traditional camel wrestling organizations in Western Anatolia. The study aimed to investigate those aspects of the Festival, which were found to be attractive for foreign visitors, and to evaluate the impacts of tourism on this traditional event. The study data were obtained from the surveys that were completed by 56 foreign visitors at the Camel Wrestling Festival in Selçuk on January 18, 2009. Findings of the study demonstrate that this traditional event attracts foreign visitors from various countries worldwide, for they are curious about this event and desire to have a cultural-authentic experience. The Camel Wrestling Festival in Selçuk is a cultural heritage, which has not been commercialized or lost its authentic significance yet, although it is vulnerable to the impact of international tourism. Nevertheless, handing this value down to the future by conserving it with its cultural surroundings is possible through a sustainable tourism policy. The Camel Wrestling Festival in Selçuk is in the process of becoming a touristic product, and the proposals in the study contribute to the development of a policy for the festival concerned.

  11. PROSES PRODUKSI BIOETANOL DARI LIMBAH CAIR GULA DALAM KAITANNYA DENGAN POTENSI SEBAGAI BAHAN BAKAR DALAM PERSPEKTIF LIFE CYCLE INVENTORY ASSESSMENT

    Directory of Open Access Journals (Sweden)

    Agusta Samodra Putra

    2013-11-01

    Full Text Available Life cycle inventory assessment merupakan salah satu tahapan di dalam Life Cycle Assessment (LCA yang bisa digunakan untuk menggambarkan interaksi materi dan energi di dalam suatu proses produksi bioetanol. Studi kasus dilakukan di pabrik gula kawasan Subang dan pabrik bioetanol di kawasan Palimanan yang merupakan pabrik gula dan bioetanol terbesar di Jawa Barat. Inventory yang dilakukan adalah pada bagian perkebunan tebu, pabrikasi tebu menjadi gula, transportasi dari pabrik gula menuju ke pabrik bioetanol, dan pabrikasi etanol. Luas lahan kebun tebu yang dimiliki oleh pabrik gula di Subang adalah seluas 5000 hektar. Dari bahan baku tebu 3000 ton/hari dihasilkan molase sebanyak 60 ton/hari, sisanya menjadi gula dan ampas tebu. Pada inventory kali ini selain dari sisi proses juga dilakukan inventory pada sisi transportasi.

  12. EFEK PEMBERIAN SPILANTHES ACMELLA DAN LATIHAN FISIK TERHADAP JUMLAH SEL OSTEOBLAS FEMUR MENCIT YANG DIINDUKSI DEKSAMETASON

    Directory of Open Access Journals (Sweden)

    Hening Laswati

    2015-05-01

    Full Text Available AbstrakTelah dilakukan penelitian untuk mengetahui uji aktivitas anti-osteoporosis secara in vivo dari tanaman Spilanthes acmella terhadap sel osteoblas tulang trabekula proksimal femur mencit jantan model osteoporosis induksi deksametason. Penelitian ini dilakukan dengan rancangan penelitian posttest only control group, 60 ekor mencit jantan sehat (usia >5 bulan dikelompokkan secara random menjadi 10 kelompok yaitu kelompok sehat tanpa induksi deksametason dan kelompok osteoporosis induksi deksametason. Kontrol positif mendapat suspensi alendronat dan kelompok latihan fiik menggunakantreadmill mencit berjalan 10m/menit bertahap selama 5 -12 menit, 3 kali dalam satu minggu, kelompok kombinasi ekstrak etanol 70% dan latihan fiik serta kelompok uji fraksi butanol, heksan, etil asetat dan air. Penelitian ini dilakukan selama 4 minggu. Osteoporosis akibat pemakaian glukokortikoid menjadi penyebab osteoporosis sekunder yang meningkatkan risiko fraktur. Telah banyak bukti klinik tentang peran fioestrogen dalam pengobatan osteoporosis pada pascamenopause. Spilanthes acmella, atau yang dikenal masyarakat dengan sebutan Legetan, termasuk famili Asteracea merupakan satu tanaman obat di Indonesia yang mempunyai kandungan senyawa polifenol dan flvonoid. Dari hasil penelitian sebelumnya diketahui bahwa baik fraksi butanol dan air dari tanaman tersebut mampu meningkatkan aktivitas enzim alkalin fosfatase yang merupakan marker pembentukan tulang. Hasil menunjukkan bahwa ekstrak etanol 70% Spilanthes acmella dikombinasikan dengan latihan fiik meningkatkan jumlah sel osteoblas secara bermakna bila dibandingkan dengan hanya ekstrak etanol atau latihan fiik. Ini membuktikan bahwa ekstrak etanol 70% Spilanthes acmella mempunyai efek additive terhadap efek latihan pembebanan aksial pada kondisi osteoporosis. Fraksi heksana, etil asetat dan air juga meningkatkan secara bermakna jumlah sel osteoblas. Fraksi non polar merupakan fraksi yang lebih potensial untuk

  13. Experimental research of SEU and SEL in high density SRAMs with sub-micron feature sizes

    International Nuclear Information System (INIS)

    The aggressive downscaling of CMOS technology has resulted in that radiation induced single event upset (SEU) reliability is getting worse and worse. Using the HI-13 tandem accelerator in China Institute of Atomic Energy, heavy ion SEU and single event latch-up (SEL) sensitivities for a variety of non-hardened high density static random access memories (SRAMs) with sub-micron feature sizes were reported. The results were compared with previously measured sensitivities for similar devices with larger features. The problems associated with SEU become more sever as device dimensions decrease. Multiple-bit upsets (MBU) for the HM62V16100LT15 in 0.13 μm CMOS technology caused by a single ion were analyzed. The frequency and the distribution of MBU were given. MBU makes challenge for EDAC adopted by the system of satellites. (authors)

  14. PENYERAPAN FORMALIN OLEH BEBERAPA JENIS BAHAN MAKANAN SERTA PENGHILANGANNYA MELALUI PERENDAMAN DALAM AIR PANAS (THE ADSORPTION OF FORMALDEHYDE BY SOME FOODSTUFFS AND ITS ELIMINATION BY SOAKING THEM IN HOT WATER

    Directory of Open Access Journals (Sweden)

    Suryana Purawisastra

    2013-07-01

    Full Text Available ABSTRAK Latar belakang: Penggunaan formalin sebagai bahan pengawet makanan dilarang oleh Pemerintah, karena bahan ini bersifat toksik (racun. Namun, hasil survei mengindikasikan bahwa beberapa jenis bahan makanan di pasar tradisional masih mengandung formalin. Formalin bisa digunakan sebagai bahan pengawet makanan, karena formalin dapat mengikat protein membentuk ikatan methylene (-NCHOH. Protein pada ikatan methylene ini tahan terhadap kerusakan, baik yang disebabkan oleh aktivitas mikroorganisme maupun oksidasi, sehingga makanan tersebut terhindar dari kerusakan dan menjadi awet. Artikel ini menyajikan hasil pengujian penyerapan formalin oleh beberapa jenis bahan makanan yang mengandung protein, serta pengaruh proses perendaman dalam air panas terhadap kandungan formalinnya. Metodologi: Sampel bahan makanan direndam dalam larutan formalin 1 persen. Sementara pengaruh proses perendaman dalam air panas terhadap kandungan formalin dilakukan dengan merendam bahan makanan berformalin di dalam air panas. Selama waktu periodik perendaman, bahan makanan dianalisis kadar air, formalin dan proteinnya. Hasil: Penyerapan formalin tertinggi oleh bahan makanan terjadi pada tahu, kemudian daging ayam, dan yang terendah adalah mi basah pasar. Akan tetapi, ada perbedaan tingkat penyerapan formalin antar-tahu, serta antara daging dada dan paha ayam. Kadar formalin dalam bahan makanan bisa dikurangi melalui perendaman dalam air panas. Besar pengurangan tergantung dari tingginya kandungan formalin. Sebagai contoh, kadar formalin tahu adalah 0.7 mg per g, dan menjadi 0 pada perendaman dalam air panas selama 2 jam. Kesimpulan: Penyerapan formalin oleh bahan makanan, kadarnya berbeda tergantung dari reaktivitas protein untuk bereaksi dengan formalin. Perendaman bahan makanan berformalin dalam air panas dapat mengurangi kandungannya. Rekomendasi: Perendaman bahan makanan, dengan merendam dalam air panas di rumah tangga, merupakan salah satu usaha ibu-ibu rumah tangga

  15. ANALISIS SIFAT LISTRIK DAN JENIS CACAT KRISTAL PADA BAHAN DIELEKTRIK Ba0,95Sr0,05TiO3 DENGAN DOPING Y2O3

    Directory of Open Access Journals (Sweden)

    Erna Hastuti

    2012-03-01

    Full Text Available BaTiO3     adalah   prototipe   bahan   feroelektrik  yang   resistif   dan   mempunyai permitivitas tinggi. Bahan ini banyak dipelajari karena mempunyai aplikasi yang luas dalam  elektronika,     diantaranya:  kapasitor,  sensor  panas,  pembatas  arus  listrik  dsb. Barium  Titanat  mempunyai  struktur  perovskite  yang  polimorf  terhadap  suhu,  yaitu kubik  untuk  suhu  lebih  dari  130  °C,  tetragonal  pada  suhu  0  °C  sampai  130  °C, orthorhombik untuk suhu -90 °C sampai 0 °C dan rhombohedral untuk suhu kurang dari -90 °C. Diketahui bahwa bahan ini mempunyai dipol spontan dibawah  suhu Curie Tc 130 oC. Penyebabnya adalah struktur kristalinnya perovskite tetragonal dimana ion titan didalam  oktahedron oksigen  bergeser  sedikit  kearah  sumbu  c,  sementara  oksigen bergeser berlawanan dengan titan. Pemberian bahan doping Sr2+ pada kristal perovskite barium titanat akan mempengaruhi sifat fisis yang ditimbulkan olehnya. Dengan cara ini akan dapat mengubah suhu Curie, permitivitas, resistansi dan lainnya.

  16. PROTOTIPE PEMESANAN BAHAN PUSTAKA MELALUI WEB MENGGUNAKAN ACTIVE SERVER PAGE (ASP

    Directory of Open Access Journals (Sweden)

    Djoni Haryadi Setiabudi

    2002-01-01

    . Salah satunya adalah Active Server Pages (ASP yang digabungkan sistem database untuk meyimpan data. Komponen penunjang lainnya adalah interface antara aplikasi dengan database yaitu ActiveX Data Objects (ADO. ASP memiliki keunggulan dalam metode scriptingnya dan mudah dalam berhubungan dengan database. Prototipe yang dibuat ini terdiri dari dua bagian utama yaitu bagian untuk administrator dan bagian untuk user. Prototipe yang dibuat ini ini mampu menghasilkan fasilitas pengeditan data, pencarian data, dan melihat informasi pesanan secara online. Untuk pencarian dan pemesanan artikel maka user dapat langsung melakukan proses download. Karena sistem E-commerce di Indonesia baru saja berkembang maka perlu diperhatikan juga mengenai metode pembayaran dimana tidak setiap orang mempunyai kartu kredit. Maka dalam prototipe ini terdapat juga suatu form untuk user yang tidak mempunyai kartu kredit. Begitu user telah melakukan pembayaran maka user bersangkutan bisa melakukan transaksi secara online. Disini dipakai juga keunggulan ASP yaitu "session" dimana data - data dalam proses yang terjadi tidak akan hilang selama user masih berada dalam session tersebut. Ini digunakan dalam proses user area dan admin area dimana user dan admin dapat melakukan berbagai macam proses. Kata kunci: e-commerce, bahan pustaka, world wide web, Active Server Page, ActiveX Data Objects.

  17. BAHAN AKTIF DALAM KOMBINASI OBAT FLU DAN BATUK-PILEK, DAN PEMILIHAN OBAT FLU YANG RASIONAL

    Directory of Open Access Journals (Sweden)

    Retno Gitawati

    2014-05-01

    Full Text Available AbstrakFlu, salesma atau batuk pilek adalah infeksi saluran pernapasan akut (ISPA akibat virus, merupakan self-limiting disease dan hanya memerlukan pengobatan simtomatik. Obat-obat yang digunakan adalah obat bebas, umumnya dalam bentuk kombinasi tetap, dengan komposisi zat aktif bervariasi. Tulisan ini bertujuan mengkaji bahan aktif dalam preparat flu kombinasi tetap dan pemilihan obat flu yang rasional. Kajian dilakukan secara cross-sectional dengan sumber data berasal dari 56 referensi berupa buku, panduan, jurnal/artikel on-line maupun publikasi tercetak, menggunakan kata kunci ”common cold, cough, over-the-counter drugs, non-prescription, self-medication, analgetics, sympathomimetics, antihistamines, decongestant, antibiotics, immunomodulators, food supplement, flu, dan batuk-pilek”.Diperoleh sejumlah 191 preparat kombinasi tetap berbentuk tablet dan sirup yang diindikasikan untuk mengurangi gejala flu (common-cold, dengan komposisi zat aktif utama antihistamin dan dekongestan. Komponen tambahan lainnya adalah analgesik, antitusif, ekspektoran, stimulan. Kekuatan (strength dosis tiap komponen masih sesuai dengan dosis yang direkomendasi, namun tercatat masih ada preparat dengan dosis dekongestan (fenilpropanolamin yang lebih tinggi dari yang direkomendasi. Tidak ada preparat tunggal yang mampu mengatasi semua gejala flu sekaligus, sehingga preparat flu kombinasi menjadi pilihan utama. Dalam menggunakan preparat flu kombinasi perlu memilihproduk yang tepat dan rasional sesuai dengan gejala spesifik, karena kemungkinan tidak semua zat aktif dalam komposisi produk obat flu diperlukan oleh penderita.Kata kunci: flu, batuk-pilek, komposisi obat flu, simtomatik.AbstractFlu or common-cold is an acute upper respiratory tract infection mainly caused by virus, and a self-limiting disease which is requires only symptomatic treatments to alleviate the symptoms. Common-cold medication is usually an OTC drug and a fixed-dose combination of various

  18. SEL1L Affects Human Pancreatic Cancer Cell Cycle and Invasiveness through Modulation of PTEN and Genes Related to Cell-Matrix Interactions

    Directory of Open Access Journals (Sweden)

    Monica Cattaneo

    2005-11-01

    Full Text Available Previously, it was reported that SEL1L is able to decrease the aggressive behavior of human pancreatic tumor cells both in vitro and in vivo. To gain insights into the involvement of SEL1L in tumor invasion, we performed gene expression analysis on the pancreatic cancer cell line Suit-2 subjected to two complementary strategies: upregulation and downregulation of SEL1L expression by stable transfection of the entire cDNA under an inducible promoter and by RNA-mediated interference. SuperArray and real-time analysis revealed that SEL1L modulates the expression of the matrix metalloproteinase inhibitors TIMP1 (P < .04–.03 and TIMP2 (P < .03–.05, and the PTEN gene (P < .03―.05. Gene expression modulations correlate with the decrease in invasive ability (P < .05 and in accumulation of SEL1L-expressing cells in G1. Taken together, our data indicate that SEL1L alters the expression of mediators involved in the remodeling of the extracellular matrix by creating a microenvironment that is unfavorable to invasive growth and by affecting cell cycle progression through promotion of G1 accumulation.

  19. Reciclar transformant l’oli : elaboració de sabó i biodièsel

    OpenAIRE

    Tàrrega Nogués, Cristina; Jové Albareda, Dolors

    2008-01-01

    Des de el curs 2005-2006 els alumnes de tercer d’ESO de l’IES J. Lladonosa de Lleida participen en l’activitat d’elaboració de sabó natural en pastilles. El curs següent vam afegir el sabó moll i durant el curs 2007-2008 la fabricació de biodièsel. En aquest article s’explica com.

  20. An Integrated Approach to Universal Prevention: Independent and Combined Effects of PBIS and SEL on Youths’ Mental Health

    OpenAIRE

    Cook, Clayton R.; Frye, Megan; Slemrod, Tal; Lyon, Aaron R.; Renshaw, Tyler L.; Zhang, Yanchen

    2015-01-01

    Mental health among children and adolescents is a growing national concern and schools have taken center stage in efforts to prevent problems and promote wellness. Although research and policymakers support the integration of mental health services into the schools, there is limited agreement on the ways to package or combine existing supports to achieve prevention-oriented goals. Positive Behavioral Interventions and Supports (PBIS) and Social Emotional Learning (SEL) are two of the most wid...

  1. PENGARUH ORIENTASI OBJEK PADA PROSES 3D PRINTING BAHAN POLYMER PLA DAN ABS TERHADAP KEKUATAN TARIK DAN KETELITIAN DIMENSI PRODUK

    Directory of Open Access Journals (Sweden)

    Sobron Lubis

    2016-02-01

    Full Text Available Penelitian ini dilaksanakan untuk mengetahui pengaruh posisi objek dalam pembuatan protipe cepat (rapid prototyping dengan menggunakan 3D printing untuk bahan polymer PLA dan ABS terhadap kekuatan tarik maupun ketelitian dimensi yang dihasilkan. Untuk  mencapai objektif penelitian ini dilakukan percobaan dengan membuat prototype spesimen ujitarik berdasarkan ASTM dengan menggunakan 3D printer. Produk yang dihasilkan dilakukan pengukuran dimensi untuk melihat akurasi peroduk melalui perubahan dua posisi variasi orientasi objek yakni secara vertikal dan horizontal. Setelah proses pengukuran dimensi, dilakukan pengujian tarik spesimen dengan menggunakan alat uji tarik. Dari eksperimen yang dilakukan diketahui bahwa posisi orientasi dan besar layer pada proses printing memberi efek terhadap kualitas permukaan, efisiensi waktu dan kekuatan dari benda. Produk material PLA dengan orientasi posisi objek horizontal memiliki kualitas dimensi yang paling baik. Jumlah kesalahan akurasi material ini tidak melebihi 1 mm pada setiap layer. Material ABS dengan posisi orientasi objek  vertikal dan tebal layer sebesar 0,10 mm menghasilkan kekuatan tegangan tarik yang terkecil sebesar 8,62 MPa dan material PLA dengan orientasi posisi objek horizontal dengan dan tebal layer sebesar 0,40 mm menghasilkan kekuatan tegangan tarik terbesar 35,57 MPa

  2. AKUMULASI LISTRIK STATIS PADA GELAS PLASTIK PRODUKSI MESIN INJECTION MOLDING: PENGARUH KELEMBABAN UDARA, TEMPERATUR, DAN BAHAN ADITIF

    Directory of Open Access Journals (Sweden)

    Ratnawati Ratnawati

    2014-12-01

    Full Text Available Akumulasi listrik statis pada gelas polipropilena hasil produksi mesin injection molding dapat menyebabkan gelas memiliki gaya elektrostatik dan tidak dapat turun secara gravitasi. Masalah ini menghambat aplikasi gelas pada mesin pengisian air minum dalam kemasan (AMDK. Penelitian ini bertujuan untuk mengetahui pengaruh kelembaban udara, temperatur, dan penambahan bahan aditif TiO2 terhadap potensial listrik permukaan gelas polipropilena. Hasil penelitian menunjukkan bahwa potensial listrik permukaan dipengaruhi oleh kelembaban udara ruang produksi, temperatur, dan penambahan TiO2. Potensial listrik permukaan semakin kecil dengan naiknya kelembaban udara. Setelah kelembaban mencapai 68% potensial listrik permukaan cenderung konstan. Ditinjau dari beda potensial (DV antara permukaan dua gelas, kelembaban optimum adalah 67-68%, yang ditandai dengan beda potensial yang paling rendah. Beda potensial ≤ 5,2 kV menyebabkan gelas cepat turun, beda potensial 5,2 kV < DV ≤ 6,7 kV menyebabkan gelas turun dengan lambat, dan DV ≥ 6,7 kV menyebabkan gelas sangat lambat turun atau menempel. Potensial listrik turun dengan naiknya temperatur. Potensial listrik statis permukaan hanya sedikit turun akibat penambahan 0,75% berat TiO2. Hasil penelitian ini juga menunjukkan bahwa penggunaan gelas dengan potensial listrik permukaan rendah dapat menaikkan kecepatan mesin pengisian AMDK menjadi 220-250 rpm dan 140-160 rpm, masing-masing untuk mesin pengisian gelas 180 ml dan 225 ml.

  3. Model-based neural networks to predict emissions in a diesel engine operating with biodiesel blends of castor; Modelo basado en redes neuronales para predecir las emisiones en un motor diésel que opera con mezclas de biodiésel de higuerilla

    Directory of Open Access Journals (Sweden)

    Fabio Narváez

    2012-12-01

    Full Text Available Some identification methods of nonlinear systems using artificialneural networks are explained. Also, a model based on Neural Networks“Supervised Feed Forward” is presented, developed to identifyand predict the behavior of volumetric emissions from combustion of astationary diésel engine based on two input variables: the engine load and the mixture of castor biodiésel. The neural network training and model validation was performed by using the NNModel.

  4. ANALISIS KANDUNGAN FENOL, NITROGEN DAN BAHAN ORGANIK TOTAL PADA BERBAGAI KEDALAMAN TANAH DI BAWAH TEGAKAN Pinus merkusii Jungh & De Vr. DI KECAMATAN TINGGI MONCONG SULAWESI SELATAN

    OpenAIRE

    Elis Tambaru; sri suhadyah

    2008-01-01

    Penelitian ini bertujuan untuk mengetahui kandungan fenol dengan N total tanah dan bahan organic total tanah pada berbagai kedalaman tanah di bawah tegakan pinus. Penelitian ini menggunakan analisis regresi linier terdiri dari pohon (P) yaitu Po = tanpa pohon dan P1 = ada pohon, serta kedalaman tanah (K) yaitu K1=0-5 cm; K2= 0-35 cm dan K3= 60-65 cm. Hasil penelitian ini menunjukkan bahwa pada tanah di bawah tegakan pohon pinus dengan kedalaman tanah 0-5 cm kandungan fenol tertinggi 0,1013 pp...

  5. Analiza poplav z uporabo satelitskih posnetkov - primer hudourniške poplave v Selški dolini leta 2007

    OpenAIRE

    Lamovec, Peter; Mikoš, Matjaž

    2015-01-01

    V Geodetskem vestniku št. 54/2010-4 je bil predstavljen postopek strojnega učenja za določitev poplavljenih območij ob poplavah v Železnikih leta 2007 na podlagi satelitskih posnetkov SPOT. V tokratnem prispevku je analizirana uporabnost teh poplavljenih površin, prepoznanih na podlagi satelitskih posnetkov, za nadaljnjo hidravlično analizo. Na šestih izbranih merilnih mestih v strugi Selške Sore so bile določene hitrosti in pretoki reke. Raziskava je pokazala, da n...

  6. "Sa, haavapuu, kesköösel valendad..." : [luuletused] / Paul Celan ; saksa k. tlk. [ja saatesõna]: Ain Kaalep

    Index Scriptorium Estoniae

    Celan, Paul, pseud., 1920-1970

    2001-01-01

    Autorist lk. 49-50. Sisu: "Sa, haavapuu, kesköösel valendad..." ; Mälestus Prantsusmaast ; Aastad sinust minuni ; Surmafuuga ; Aja silm ; Kõnevõre ; Silm, lahtine ; Zürich, "Toonekure" kohvik : Nelly Sachsile ; Psalm ; "Niitpäikesed..." ; "Maovankris, mööda..." ; "Maastik urnidega..." ; Prahas ; "Kõmin: see on..." ; "Üks hambajälg eikuskilpool..." ; "Kahinais, otsekui meie alguses..." ; Teine ; "Teie oma..." ; "See, mis meid..." ; "Lõika palvekäsi..." ; "Ma kuulen, et kirves lõi õitsema..." ; "Leht, mille puu küljest..."

  7. Adaptación de un motor diésel para su funcionamiento con gas natural

    OpenAIRE

    Díez Bravo, Diego

    2016-01-01

    En este Trabajo de Fin de Máster se estudia la posibilidad de convertir un motor diésel de una furgoneta en un motor dual, el cual trabaja de manera simultánea con gas natural y gasóleo. Se comienza con un repaso a la historia de este tipo de motores y su estado actual. Tras esto, se realiza una descripción de los componentes de un motor de este tipo, así como del funcionamiento del motor. Debido a las diferencias con otros tipos de motores, se incide con mayor profundidad en l...

  8. Katsaus nuoren taitoluistelijan tuki- ja liikuntaelimistön ongelmiin selän ja lantion alueella

    OpenAIRE

    Talus, Annukka; Siimos, Martina

    2010-01-01

    Opinnäytetyön tavoitteena oli selvittää nuoren taitoluistelijan tuki- ja liikuntaelimistön tyypillisiä ongelmia selän ja lantion alueella. Tarkoituksena oli tehdä tilannekatsaus taitoluistelun aiheuttamista ongelmista ja vammoista nuorelle luistelijalle. Tutkimusta varten muodostettiin koeryhmä, joka koostui neljästä 11-vuotiaasta Kooveen taitoluistelijasta. Heidät valittiin koeryhmään iän ja taitojen sekä harjoitteluintensiteetin perusteella, sillä vuosittain heille kertyy 500–600 harjoi...

  9. PRODUCCIÓN DE BIODIÉSEL A PARTIR DE MICROALGAS Y UNA CIANOBACTERIA CULTIVADAS EN DIFERENTES CALIDADES DE AGUA

    OpenAIRE

    Manuel Sacristán-de Alva; Víctor M. Luna-Pabello; Erasmo Cadena-Martínez; Alejandro F. Alva-Martinez

    2014-01-01

    La producción de biodiésel, a partir de microorganismos fotosintéticos, es un tema de creciente investigación. No obstante, las implicaciones de la remoción de nutrientes y capacidad de acumulación de lípidos se desconocen cuando los microorganismos se cultivan en aguas residuales muni - cipales respecto de su cultivo en un medio enriquecido. En el presente estudio se evaluó el potencial de dos especies de microalgas, Chlorella vulgaris y Scenedesmus acutus , y de una cianobacteria, Arthr...

  10. De la conception à l'exploitation des cuves industrielles d'électrolyse en sels fondus

    OpenAIRE

    Bertaud, Y.; BOUVET, S; Lamaze, A.; Baluais, G.; Ronga-Lefebvre, I.

    1994-01-01

    L'électrolyse en sels fondus est un procédé industriel largement développé. C'est la technique utilisée pour produire l'aluminium, le fluor, le sodium, et certains métaux réfractaires multivalents. Pour optimiser cette production, il faut concevoir intelligemment le procédé (laboratoire, pilote, extrapolation) et maîtriser les conditions d'exploitation (analyse et suppression des dysfonctionnements). Le laboratoire de recherche central qui marie les différentes "cultures" électrochimiques des...

  11. Estudio de las emisiones de motores diésel de automoción en condiciones de funcionamiento transitorias al usar biodiesel

    OpenAIRE

    Cárdenas Almena, María Dolores

    2016-01-01

    La tecnología diésel presenta una clara ventaja frente a su competidor directo en el sector de turismos, el vehículo con motor de encendido provocado: su mayor eficiencia. Hasta la fecha, éste ha sido el pilar sobre el que los fabricantes de vehículos europeos sostienen su apuesta por la tecnología diésel como clave para cumplir los objetivos de CO2 a 2020. Este hecho, unido a una ventaja fiscal del gasóleo frente a la gasolina ha posicionado al vehículo diésel en un lugar de equidad, si no d...

  12. Estado nutricional e ingestão de selênio em crianças com fenilcetonúria em Minas Gerais, Brasil

    OpenAIRE

    Michelle R. A. Alves; Ana L. P. Starling; Viviane C. Kanufre; Rosângelis D.L. Soares; Rocksane C. Norton; Aguiar, Marcos J. B.; José N. Januario

    2012-01-01

    OBJETIVO: Avaliar a ingestão alimentar e o estado nutricional em selênio em pacientes com fenilcetonúria. MÉTODOS: Foram avaliados prospectivamente 54 crianças com fenilcetonúria, entre 4 e 10 anos de idade. O estudo foi realizado antes e após o uso de mistura de aminoácidos complementada com selênio. A segunda fase do estudo foi realizada com, no mínimo, 90 dias de utilização da mistura complementada. O estado nutricional em selênio foi avaliado por meio da análise de parâmetros bioquímicos:...

  13. Production and characterization of biodiesel from chicken fat; Producción y caracterización de biodiésel a partir de aceite de pollo

    Directory of Open Access Journals (Sweden)

    Manuel Antonio Montenegro Mier

    2012-12-01

    Full Text Available At present, the world has been working on substituting fossil fuels by alternative fuels, among other reasons, due to the depletion of non-renewable natural resources and the emissions that they produce, generating large environmental implications. This article is part of the research advancement between 2009 and 2012 related to the “Production and characterization of biodiésel from chickenfat”. Tests for viscosity, density, distillation curve calculation of ketene index,were performed in order to determine the feasibility for the use of biodiésel as afuel in internal combustion ignition by compression engines MCI-EC. The studyshowed that the biodiésel obtained meets existing technical standards for liquidbiofuels at the international level and could, therefore, be successfully used ininternal combustion engines.

  14. Kinetics of the interaction of translation factor SelB from Escherichia coli with guanosine nucleotides and selenocysteine insertion sequence RNA.

    Science.gov (United States)

    Thanbichler, M; Bock, A; Goody, R S

    2000-07-01

    The kinetics of the interaction of GTP and GDP with SelB, the specific translation factor for the incorporation of selenocysteine into proteins, have been investigated using the stopped-flow method. Useful signals were obtained using intrinsic (i.e. tryptophan) fluorescence, the fluorescence of methylanthraniloyl derivatives of nucleotides, or fluorescence resonance energy transfer from tryptophan to the methylanthraniloyl group. The affinities of SelB for GTP (K(d) = 0.74 micrometer) and GDP (K(d) = 13.4 micrometer) were considerably lower than those of other translation factors. Of functional significance is the fact that the rate constant for GDP release from its complex with SelB (15 s(-)(1)) is many orders of magnitude larger than for elongation factor Tu, explaining why a GDP/GTP exchange factor is not required for the action of SelB. In contrast, the rate of release of GTP is 2 orders of magnitude slower and not significantly faster than for elongation factor Tu. Using a fluorescently labeled 17-nucleotide RNA minihelix that represents a binding site for the protein and that is part of the fdhF selenocysteine insertion sequence element positioned immediately downstream of the UGA triplet coding for selenocysteine incorporation, the kinetics of the interaction were studied. The high affinity of the interaction (K(d) approximately 1 nm) appeared to be increased even further when selenocysteyl-tRNA(Sec) was bound to SelB, but to be independent of the presence or nature of the guanosine nucleotide at the active site. These results suggest that the affinity of SelB for its RNA binding site is maximized when charged tRNA is bound and decreases to allow dissociation and reading of codons downstream of the selenocysteine codon after selenocysteine peptide bond formation. PMID:10781605

  15. UJI AKTIVITAS IMUNOMODULATOR KASUMBA TURATE (Carthamus tinctorius LINN) SEBAGAI UPAYA PEMBUATAN SEDIAAN TERSTANDAR MENUJU PROTOTIPE SKALA INDUSTRI KECIL

    OpenAIRE

    Usmar; Syukur, Rahmawati; Tayeb, Rosany; Abdullah, Nurlaila

    2008-01-01

    Kekebalan tubuh adalah resistensi terhadap penyakit terutama penyakit infeksi. Gabungan sel, molekul dan jaringan yang berperan dalam resistensi terhadap infeksi disebut sistem imun dan reaksi yang dikoordinasi sel-sel dan molekul-molekul terhadap mikroba dan bahan lainnya disebut respon imun. Sistem imun diperlukan tubuh untuk mempertahankan keutuhannya terhadap bahaya yang dapat ditimbulkan berbagai bahan dalam lingkungan hidupnya. Aktifitas system imun dapat menurun karena berbagai factor...

  16. PENGARUH JENIS ANODA PADA PROSES PEMULIHAN LOGAM NIKEL DARI TIRUAN AIR LIMBAH ELECTROPLATING MENGGUNAKAN SEL ELEKTRODEPOSISI

    Directory of Open Access Journals (Sweden)

    Djaenudin Dhaenudin

    2013-11-01

    Full Text Available EFFECT OF ANODES TYPES ON NICKEL RECOVERY FROM SYNTHETIC ELECTROPLATING WASTE ELECTRODEPOSITION CELLS. A study concerning the recovery of nickel from electroplating wastewater artificial solution. The study was conducted with a batch system using electrodeposition cell consisting of two spaces separated by water hyacinth leaf, copper cathode plate, H2SO4 solution anolyte, catholyte solution of NiSO4 plus NaCl supporting electrolyte and anode varied. Electrodeposition performed at the direct current of 5V power for 4 hours each run. The research objective was to obtain the best anode in nickel electrodeposition process of electroplating waste artificial solution. Graphite, stainless steel type AISI 316 and the lead were used as a variation of the anode. Concentration of nickel in the catholyte at baseline 2200 mg/L. The results showed that the anode was a graphite anode with best value decreased by 72.44% nickel concentration, deposition of nickel on the cathode of 0.188 grams and specific energy values ​​of 6.1625 kWh/kg.nickel.   Telah dilakukan penelitian tentang pemulihan logam nikel dari larutan tiruan air limbah electroplating. Penelitian dilakukan dengan sistem batch menggunakan sel elektrodeposisi yang terdiri dari dua ruang yang dipisahkan dengan daun eceng gondok, katoda pelat tembaga, anolit larutan H2SO4, katolit larutan NiSO4 ditambah elektrolit pendukung larutan NaCl dan anoda divariasikan. Elektrodeposisi dilakukan pada listrik searah sebesar 5V selama 4 jam setiap tempuhan. Tujuan penelitian adalah memperoleh anoda terbaik pada proses elektrodeposisi nikel dari larutan tiruan limbah electroplating. Grafit, Stainless Steel  tipe AISI 316 dan timbal digunakan sebagai variasi jenis anoda. Konsentrasi nikel dalam katolit pada awal penelitian 2200 mg/L. Hasil penelitian menunjukkan bahwa anoda grafit merupakan anoda yang paling baik dengan nilai penurunan konsentrasi nikel sebesar 72,44%, deposisi nikel di katoda sebesar 0

  17. Sorção de selênio em solos do bioma cerrado

    Directory of Open Access Journals (Sweden)

    Lívia Botelho de Abreu

    2011-12-01

    Full Text Available O estudo da distribuição de Se em solos é de extremo interesse devido à estreita faixa entre níveis de deficiência e toxidez. A espécie química de Se com maior potencial toxicológico é o ânion selenato, em razão de sua alta mobilidade em solos, sendo assim de grande importância a compreensão de seu comportamento em solos tropicais. Foi realizado um experimento de adsorção, utilizando-se 2 g de solo em 20 mL de solução, contendo dez diferentes concentrações de Se na forma de Na2SeO4, com tempo de agitação de 24 h, em solução eletrolítica de NaNO3 0,03 mol L-1. Para estudar o efeito do tempo na adsorção, realizou-se um experimento nas mesmas condições das do ensaio de adsorção, porém foi utilizada somente a concentração de 1 mg L-1 Se, variando o tempo de agitação de 15 min a 72 h. A isoterma de adsorção de Freundlich foi a de melhor ajuste aos dados experimentais. Para o estudo cinético, o melhor modelo foi o de pseudossegunda ordem, e o tempo necessário para a adsorção do Se atingir o equilíbrio foi de aproximadamente 4 h. De modo geral, os valores obtidos para Kd foram baixos; assim, conclui-se que o Se tende a ficar mais em solução do que retido nas partículas do solo. Portanto, os solos mais intemperizados, gibbsíticos e goethíticos e com maior conteúdo de argila foram os que tiveram maior afinidade pelo selênio. Nos solos com textura média ou arenosa, esse elemento tende a ser menos retido, razão pela qual pode ser absorvido pelas plantas ou ser facilmente lixiviado, podendo causar malefícios ao ecossistema.

  18. Nuevos procesos para la obtención de biodiésel a partir de catalizadores ácidos y básicos

    OpenAIRE

    Alba Rubio, Ana Carolina

    2011-01-01

    En esta Tesis Doctoral se estudian diferentes catalizadores que pueden emplearse para la producción de biodiésel, un combustible renovable procedente de la biomasa, que puede sustituir al diésel de origen fósil empleado actualmente en los motores de combustión interna. El óxido de calcio ha mostrado ser uno de los catalizadores sólidos básicos más prometedores para la sustitución del actual proceso catalítico homogéneo que emplea la industria. El uso de este catalizador, sin embargo, pos...

  19. Evaluación de estrategias de producción de biodiésel en Chile en base a criterios ambientales

    OpenAIRE

    Iriarte García, Alfredo

    2010-01-01

    El objetivo principal de la tesis es evaluar, mediante el Análisis de Ciclo de Vida (ACV), los impactos ambientales y la demanda de energía y agua de la futura producción de biodiésel en Chile y de sus cultivos energéticos asociados, colza y girasol, bajo diferentes opciones de producción a escala nacional, en el corto plazo. Los objetivos adicionales son determinar las etapas críticas en el ciclo de vida del biodiésel, de colza y de girasol y evaluar ambientalmente opciones de mejora en la p...

  20. TOPLUMSAL (ÖZ)YAŞAMÖYKÜSEL BİR ROMAN ÖRNEĞİ: BABAM

    OpenAIRE

    SAYIN, MEHMET

    2015-01-01

    Babam özgün adıyla La Place çağdaş Fransız kadın yazar ve edebiyat öğretmeni Annie Ernaux’nun 1984 yılında, Fransa’da Renaudot edebiyat ödülünü aldığı, özyaşam öyküsel, yaşam öyküsel ve toplumbilimsel (auto socio-biografique) roman türüne ait genel özelliklere sahip örnek bir Fransız romanıdır.Yapıtta Annie Ernaux olduğu anlaşılan anlatıcı-kadın kahraman (narratrice-héroïne) tarafından sunulan anlatının egemen öznesi ben (je) ile romanın konusunu oluşturan anlatıcı-kadın kahramanın babasını s...

  1. Bilişsel psikolojinin bir konusu olarak müzik algısı

    OpenAIRE

    Aslan, Aslı

    2007-01-01

    Müzik insanda zihinsel bir aktivite gerektirdiği için psikolojik araştırmaların bir konusu olarak uzun ve ayrıcalıklı bir tarihe sahiptir. Karmaşık bir insan aktivitesi olarak müzik algısı doğal olarak özellikle bilişsel psikoloji için bir ilgi alanı olmuştur. Bilişsel çalışmalar gösteriyor ki bir dinleyicide oluşan belli bir müzik parçasından edindiği deneyim duyusal mekanizmalar tarafından kaydedilen sesler tarafından yürütülür ve aynı zamanda o sesler tarafından da sınırlandırılır fakat ay...

  2. Evaluasi karakteristik abu sekam padi dengan kitosan molekul tinggi nanopartikel sebagai bahan dentinogenesis (Characteristic evaluation of rice husk ash with chitosan high molecule nanoparticle as dentinogenesis material

    Directory of Open Access Journals (Sweden)

    Pretty Farida Sinta Silalahi

    2014-06-01

    Full Text Available Background: Mineral trioxide aggregate (MTA and resin modified glass ionomer cement (RMGIC are the material used for indirect and direct pulp capping due to biocompatibility, but these materials have many shortcomings. Mineral trioxide aggregate contains a little amount of arsenic and has long setting time, while HEMA containing RMGIC are cytotoxic. Rice husk ash nanoparticles (RHAn is a potential source of silica. High molecular chitosan nanoparticles (HMCn can stimulate the formation of reparative dentin. Combination of these two materials is biocompatible and have good sealing ability. Purpose: This study was aimed to study RHAn + HMCn used as biomaterials for prevention of pulpodentinal complex by examined at the microstructure of dentin surfaces applied with RHAn + HMCn. Methods: Twenty-four mandibular premolar teeth extracted for orthodontic purposes, were made cavity class I preparation with 3 mm depth above the cemento-enamel junction (CEJ. Then each tooth was cut in bucco-lingual direction and each part was cut using a cervical disc bur. Samples were divided into 3 groups, group I the teeth were applied with MTA; group II the teeth were applied RMGIC; group III the teeth were apllied with RHAn + HMCn. Characterization was done by using Scanning Electron Microscopy (SEM on the interface between test material and dentin adjacent to the pulp to see surface microstructure. Results: Material microstructure of RHAn + HMCn applied to the dentine showed tags like structure which was more significant than MTA. RHAn + HMCn showed to have better sealing ability than MTA. Porosity of ASPn + HMCn was less than MTA and RMGIC. Conclusion: The study suggested that the combined RHAn + HMCn biomaterials could be used as an active biomaterial that can maintain the integrity of pulp dentinal complex.Latar belakang: Mineral trioksida agregat (MTA dan semen ionomer kaca modifikasi resin (SIKMR adalah bahan yang digunakan untuk pulp capping langsung dan tidak

  3. ANTIBODI MONOKLONAL STREPTOKOKUS MUTANS 1(c 67 kDa DALAM PASTA GIGI BAHAN DASAR UNTUK MENGHAMBAT PERTUMBUHAN STREPTOKOKUS MUTANS

    Directory of Open Access Journals (Sweden)

    Rini Devijanti R.

    2015-08-01

    Full Text Available Prevention of dental caries is still continuing, because the prevalency caries is high. There was many methods to prevent dental caries etc. dental education, oral hygiene, special method on tooth brushing, water fluoridation, fissure sealant and later on the passive immunization with monoclonal antibodies. The purpose of this study was to investigate about monoclonal antibodies IgA, IgG1 and IgG3 against Streptococcus mutans 1(c in basic paste for inhibiting the growth Streptococcus mutans. The monoclonal antibodies were IgA Ab, IgG1 Ab and IgG3 Ab. Formula basic paste from PT “X” contained Aqua, Sorbitol, Nipagin, Dicalcium Phosphat, Titanium Dioxid, Sodium Carboxyl Methyl Sel. Sodium Lauryl Sulfate and Sacarin. Basic paste was mixed with monoclonal antibodies IgA, IgG1 and IgG3 in room temperature (27oC then to investigate zone of inhibition from these tooth paste with Wistreich and Lechman methods. The data obtained in this study was analyzed with one way Anova and LSD. The result showed that there was a significant differences between basic paste with or without monoclonal antibodies. From the data analyzed in this study it can be concluded that monoclonal antibodies against S. mutans 1( c could be formulation with basic paste.

  4. Formulasi Dan Evaluasi Kestabilan Fisik Krim Ekstrak Rumput Laut Euchema Spinosum

    OpenAIRE

    Pakki, Ermina; Syukur, Rahmawati; Fatmawaty, Aisyah

    2007-01-01

    Rumput laur Euchema spinosum merupakan salah satu jenis dari alga merah (Rbodopbyta) mengandung senyawa phycobiliprotan yang tersusun atas beberapa gugus kromofor diantaranya phycoerythrin, phycocyanin, aflophycocyanin, dan phycourobilin. Adanya kandungan rumput ini Eucheuma spinosum berpotensi uniuk dikembangkan menjadi bahan sebagai tabir surya.

  5. ADSORPSI Pb2+ DALAM LIMBAH CAIR ARTIFISIAL MENGGUNAKAN SISTEM ADSORPSI KOLOM DENGAN BAHAN ISIAN ABU LAYANG BATUBARA SERBUK DAN GRANULAR

    Directory of Open Access Journals (Sweden)

    Widi Astuti

    2015-07-01

    Full Text Available Batubara  merupakan  salah  satu  sumber energi  alternatif  yang murah. Oleh karena itu,  penggunaan  batubara  di  Indonesia meningkat pesat  setiap  tahunnya. Penggunaan batubara  ini  menghasilkan  limbah  yang  dapat mencemari lingkungan baik limbah gas  seperti   CO2, NOX,  CO,  SO2,  hidrokarbon  maupun  limbah  padat  yang berupa abu  layang dan  abu  dasar. Abu  layang  mengandung SiO2, Al2O3,  dan sisa karbon yang tidak terbakar sehingga potensial digunakan sebagai adsorben. Pada penelitian ini, kemampuan adsorpsi abu layang ditingkatkan melalui aktivasi termal dan diuji untuk menjerap ion Pb2+ dalam limbah cair artifisial. Adsorpsi dilakukan pada sistem kolom yang berlangsung kontinyu menggunakan bahan isian abu layang teraktivasi, dalam bentuk serbuk dan granular, pada laju alir influen yang bervariasi. Hasilnya, laju alir mempengaruhi nilai kapasitas (qo, konstanta thomas (KtH dan waktu breakthrough.Kata Kunci : Pb2+ , adsorpsi, abu layang, breakthrough Coal is one of the inexpensive alternative energy. Therefore, the usage of coal in indonesia has been increased every year. It produces waste that can pollute the environment including gases waste such as CO2, NOX, CO, SO2, hydrocarbons and solid waste including fly ash and bottom ash. Coal fly ash is composed of  SiO2, Al2O3 and unburned carbon that enables it to act as a potential adsorbent. In this research, the adsorption capasity has increased by thermal activation and used to adsorp Pb2+ ion in wastewater.  The adsorption was carried out in packed column contains powder and granular activated fly ash. In the system, flow rate was varied.  The results show that flow rate influences adsorption capacity, Thomas constant and breakthrough time.Keywords: Pb2+, adsorption, coal fly ash, breakthrough

  6. Intoxicação por selênio em suínos no Sul do Brasil

    Directory of Open Access Journals (Sweden)

    Danilo C. Gomes

    2014-12-01

    Full Text Available São descritos dois surtos de intoxicação por selênio em suínos na região Sul do Brasil. Foram acometidos leitões em fase de creche, entre 27 e 22 dias, com mortalidade variando de 16% a 15,3% (Surto 1 e 2 respectivamente. Os suínos apresentaram poliomielomalacia simétrica focal e lesões de casco, que inicialmente eram caracterizadas por uma linha avermelhada na borda coronária que evoluía nos suínos sobreviventes para desprendimento do casco. Os sinais clínicos iniciaram após seis dias (Surto 1 e 30 horas (Surto 2 da introdução da ração com alto teor de selênio. O surgimento dos sinais foi abrupto, caracterizado por andar cambaleante, com evolução para paralisia dos membros pélvicos e posteriormente tetraparesia. Macroscopicamente observaram-se focos circulares amarelados com áreas deprimidas mais escuras, restritas ao corno ventral da substância cinzenta em intumescências cervical e lombar. Microscopicamente essas áreas corresponderam à malacia da substância cinzenta, caracterizada por microcavitações, perda neuronal, cromatólise, neuronofagia, infiltrado de células Gitter, microgliose, astrócitos de Alzheimer tipo II e proliferação de células endoteliais evidenciadas na imunohistoquímica (IHQ para fator de von Willebrand. Ainda, no segundo surto, dois animais apresentaram vacuolização difusa do citoplasma de neurônios e em um suíno foram observados astrócitos gemistocíticos. Na IHQ para GFAP ficou evidenciada uma astrocitose e astrogliose. Além dessas alterações medulares, em dois suínos observou-se, polioencefalomalácia simétrica no tronco encefálico. Em amostras de ração, detectou-se 3,38ppm (Surto 1 e 154ppm (Surto 2 de Se/kg e em amostras de fígado foram encontradas dosagens superiores a 3,34ppm (variando de 3,34 até 10ppm. No Surto 2, após 44 dias da retirada da ração, foi realizada eutanásia de seis suínos para monitoramento de níveis hepáticos de selênio (dois su

  7. Software Transition Project Retrospectives and the Application of SEL Effort Estimation Model and Boehm's COCOMO to Complex Software Transition Projects

    Science.gov (United States)

    McNeill, Justin

    1995-01-01

    The Multimission Image Processing Subsystem (MIPS) at the Jet Propulsion Laboratory (JPL) has managed transitions of application software sets from one operating system and hardware platform to multiple operating systems and hardware platforms. As a part of these transitions, cost estimates were generated from the personal experience of in-house developers and managers to calculate the total effort required for such projects. Productivity measures have been collected for two such transitions, one very large and the other relatively small in terms of source lines of code. These estimates used a cost estimation model similar to the Software Engineering Laboratory (SEL) Effort Estimation Model. Experience in transitioning software within JPL MIPS have uncovered a high incidence of interface complexity. Interfaces, both internal and external to individual software applications, have contributed to software transition project complexity, and thus to scheduling difficulties and larger than anticipated design work on software to be ported.

  8. Intoxicação por selênio em suínos no Sul do Brasil

    OpenAIRE

    Danilo C. Gomes; Suyene O. Souza; Gregory D. Juffo; Saulo P. Pavarini; David Driemeier

    2014-01-01

    São descritos dois surtos de intoxicação por selênio em suínos na região Sul do Brasil. Foram acometidos leitões em fase de creche, entre 27 e 22 dias, com mortalidade variando de 16% a 15,3% (Surto 1 e 2 respectivamente). Os suínos apresentaram poliomielomalacia simétrica focal e lesões de casco, que inicialmente eram caracterizadas por uma linha avermelhada na borda coronária que evoluía nos suínos sobreviventes para desprendimento do casco. Os sinais clínicos iniciaram após seis dias (Surt...

  9. Síntesis de biodiésel y caracterización de bebidas alcohólicas mediante técnicas de elevada resolución

    OpenAIRE

    Sáez Montaner, Vicente

    2015-01-01

    En esta Tesis Doctoral se describe el desarrollo de procedimientos de síntesis de biodiésel y caracterización de bebidas alcohólicas mediante técnicas analíticas de elevada resolución. La puesta a punto de los procedimientos de síntesis de biodiésel y sus estudios de caracterización se realizó en respuesta a la demanda de producción de biocombustibles basados en materias primas renovables y de bajo impacto ambiental que puedan reemplazar de manera efectiva al diésel convencional obtenido a pa...

  10. Selenium Supplementation in Fish: A Combined Chemical and Biomolecular Study to Understand Sel-Plex Assimilation and Impact on Selenoproteome Expression in Rainbow Trout (Oncorhynchus mykiss.

    Directory of Open Access Journals (Sweden)

    Davide Pacitti

    Full Text Available Selenium (Se is an essential oligonutrient, as a component of several Se-containing proteins (selenoproteins, which exert important biological functions within an organism. In livestock, Se-enriched products have been proposed as dietary supplements to be included into functional feeds for animal preventive health care. To this end, it is important to understand the optimal range of concentrations for supplementation and how long it takes to be assimilated into the organism.In this study, rainbow trout (Oncorhynchus mykiss were fed a control diet containing 0.9 g Kg-1 Se or the same diet supplemented with a Se-Yeast product (Sel-Plex to achieve Se concentrations ranging from 1.5-8.9 g Kg-1 for a period of ten weeks. Fish were sampled every two weeks for analysis. The kinetics of Se bioaccumulation and the effects on fish selenoprotein expression was determined in different tissues combining chemical and bimolecular techniques.The Sel-Plex enriched diets did not have any effect on survival and growth performance. The highest Se levels were found in liver and kidney followed by muscle and blood cells. Analysis of the Se concentration factor showed that liver is able to initially regulate the amount of Se accumulated. However, with higher dietary Se level (4.8 and 8.9 g Kg-1 and longer times of exposure (10 weeks, regulation is ineffective and the Se tissue concentration increases. The expression of the selected trout selenoprotein transcripts showed an inverse correlation with Sel-Plex augmentation in most cases. In liver, kidney and blood cells the highest up-regulation of the trout selenoprotein genes was seen mostly in the group fed the diet enriched with the lowest concentration of Sel-Plex (0.5 g Kg-1 for 10 weeks.Sel-Plex may represent an excellent Se supplement to deliver a high level of Se without provoking harm to the fish and to guarantee the maximal absorption of the element. According to our results, a dietary supplementation of Sel

  11. MODIFIKASI TEPUNG UMBI TALAS BOGOR (COLOCASIA ESCULENTUM (L SCHOTT DENGAN TEKNIK OKSIDASI SEBAGAI BAHAN PANGAN PENGGANTI TEPUNG TERIGU

    Directory of Open Access Journals (Sweden)

    Dessy Ariyanti

    2014-05-01

    Full Text Available Tanaman talas bogor (Colocasia esculentum (L Schott sangat mudah dibudidayakan di daerah tropik dan sub-tropik, termasuk Indonesia. Umbi talas bogor kaya akan karbohidrat, sehingga dapat digunakan sebagai sumber energi yang potensial bagi manusia melalui berbagai proses modifikasi. Tujuan dari penelitian ini adalah memperbaiki kualitas tepung umbi talas bogor dengan mengkaji pengaruh konsentrasi suspensi, katalis, oksidator, dan temperatur dari proses modifikasi dengan cara oksidasi menggunakan larutan hidrogen peroksida (H2O2. Variabel yang dikaji adalah suspensi tepung dengan air (40, 30, 20, dan 10%, waktu reaksi (30, 60, 90, dan 120 menit, konsentrasi katalis (0; 0,1%; 0,2%, konsentrasi oksidator (1%, 2% dan 3% dan temperatur (30; 40; 50oC. Hasil penelitian menunjukkan bahwa penggunaan konsentrasi suspensi 40% , konsentrasi katalis 0,1%, konsentrasi H2O2 2% dan temperatur 30oC pada waktu oksidasi 30 menit memberikan hasil yang paling optimum ditinjau dari daya kembang (swelling power dengan nilai 7g/g dan kelarutannya dalam air yaitu 4% dengan mempertimbangkan aspek teknis dan ekonomis dari proses. Hasil penelitian ini menunjukkan bahwa penggunaan H2O2 sebagai oksidator cukup efektif dalam meningkatkan nilai daya kembang tepung talas bogor yang sebelumnya hanya 4,3 g/g menjadi 7 g/g, dimana nilai tersebut telah masuk dalam rasio daya kembang tepung terigu yaitu 6,8-7,9 g/g. Namun oksidator H2O2 tidak cukup efektif dalam meningkatkan nilai kelarutan tepung dalam air yang sebelumnya hanya 2% menjadi 4%, dimana nilai tersebut masih dibawah rasio kelarutan tepung terigu yaitu 6,3-7,3%. Selain itu uji organoleptik pada kue kering berbahan baku tepung umbi talas bogor teroksidasi menunjukkan kelemahan berupa rasa yang agak pahit dan tekstur yang terlalu rapuh dibandingkan dengan kue kering yang menggunakan bahan baku tepung terigu.Bogor taro (Colocasia esculentum (L Schott is one of the local resources which can be used as raw material for flour

  12. [Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Letgallen. Stadt, Land und Konfession 1500-1721. 2. und 3. Teil] / Anti Selart

    Index Scriptorium Estoniae

    Selart, Anti, 1973-

    2012-01-01

    Arvustus: Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Letgallen. Stadt, Land und Konfession 1500-1721. Hrsg. von Matthias Asche, Werner Buchholz, Anton Schindling. 2. und 3. Teil.

  13. [Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen. Stadt, Land und Konfession 1500-1721. Teil 1.] / Jürgen Beyer

    Index Scriptorium Estoniae

    Beyer, Jürgen, 1965-

    2010-01-01

    Arvustus: Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen. Stadt, Land und Konfession 1500-1721. Teil 1. (Münster : Aschendorff, 2009)

  14. Matthias Asche, Werner Buchholz, Anton Schindling (Hrsg.): Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen. Stadt, Land und Konfession 1500-1721. Tl. 2, Münste

    Index Scriptorium Estoniae

    Wittram, Heinrich, 1931-

    2011-01-01

    Arvustus: Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen : Stadt, Land und Konfession 1500-1721. Teil 2. Münster, 2010

  15. Seláquios do Acervo do Museu de Ciências da Terra / DNPM-RJ

    Directory of Open Access Journals (Sweden)

    Alex Alves Souto

    2005-01-01

    Full Text Available Os seláquios depositados na Coleção de Peixes Fósseis do MCTer correspondem a uma amostragem da ocorrência do grupo no Brasil. São 86 registros, sendo 9 deles holótipos, no acervo, 32,5% dos exemplares são representantes do Devoniano e Permiano, 46,5% do Cretáceo e 21% do Cenozóico, que correspondem a 19 gêneros e 36 espécies. Devido a configuração cartilaginosa do seu esqueleto, o registro fóssil restringe-se a partes mineralizadas como dentes, escamas, espinhos de nadadeiras e cefálicos. Eventualmente, ocorre a preservação de um esqueleto completo incluindo partes moles como o Tribodus limae Brito & Ferreira, 1989. Do Paleozóico, destacam-se os espinhos de Xenacanthiformes e pertencem ao acervo os holótipos de Xenacanthus tocantinsensis Santos & Salgado, 1970; Xenacanthus albuquerquei (Santos, 1946 e Xenacanthus santaritensis Ragonha, 1986. Da ordem Ctenacanthiformes há os holótipos de Ctenacanthus gondwanus Santos, 1947 e Ctenacanthus maranhensis Santos, 1946; há um representante ainda, dos Eugeneodontiformes, síntipos de Anisopleurodontis pricei Santos 1994. Entre os seláquios cretáceos estão os Lamniformes, com os exemplares de Cretolamna serrata, (Agassiz, 1843 e Scapanorhynchus rapax (Quaas, 1902. Os Hibodontiformes constituem o grupo mais representativo do mesozóico, são espinhos de nadadeiras, espinhos cefálicos e alguns dentes de Hybodus sp. O holótipo de Hybodus florencei (Moraes Rego, 1960 da Formação Corumbataí, bem como o parátipo de Tribodus limae Brito & Ferreira 1989; da Formação Santana, bacia do Araripe, fazem parte do acervo do MCTer. Dos seláquios cenozóicos estão os representantes da Formação Pirabas, Mioceno do Estado do Pará, dos quais constam dois holótipos, Carcharhinus ackermanii, Santos & Travassos 1960 e Galeocerdo paulinoi Santos & Travassos, 1960; e um dente de Carcharocles megalodon (Agassiz,1835, o maior tubarão carnívoro já existente e alguns peixes fósseis que

  16. Altération par les sels des pierres de construction: Influence des propriétés capillaires et des conditions d'évaporation

    OpenAIRE

    Angeli, Matthieu; Bigas, Jean-Philippe; Menendez, Beatriz; Hébert, Ronan; David, Christian

    2006-01-01

    9 pages, compte rendu de conférence National audience L'importance de l'imbibition capillaire et des processus d'évaporation dans l'altération des pierres de construction sous l'action de la cristallisation des sels solubles est estimée par différents modes opératoires adaptés de la norme européenne EN 12370. Les différents tests consistent à modifier les conditions de l'apport en sel (sulfate de sodium) dans le réseau poreux des pierres ainsi que les possibilités d'évaporation, et de s...

  17. Producció enzimàtica de biodièsel a partir d’olis de rebuig : una nova alternativa

    OpenAIRE

    Bonet, Kírian

    2016-01-01

    El biodièsel és una alternativa als combustibles fòssils que a més compta amb avantatges mediambientals com són la reducció de certes emissions contaminants. Ara bé, el fet que provingui majoritàriament d’olis aptes per al consum humà comporta un dilema ètic sobre la idoneïtat de destinar terrenys cultivables per produir biodièsel en comptes d’aliment. Aquest treball presenta una alternativa viable: l’oli d’orujo, un subproducte de l’extracció de l’oli d’oliva convencional molt abundant a l’E...

  18. Estudio de la reactividad en diversas atmósferas y caracterización de diferentes tipos de hollines representativos de motor diésel

    OpenAIRE

    Arnal Forcada, Cristina; Bilbao Duñabeitia, Rafael; Millera Peralta, Ángela

    2014-01-01

    1. Introducción El número de vehículos con motor diésel se ha incrementado en gran medida a lo largo de las últimas décadas. Los gases de escape de los motores diésel contienen materia particulada y óxidos de nitrógeno (NOx) como principales contaminantes. Las regulaciones de emisiones de estos contaminantes son cada vez más restrictivas y las nuevas tecnologías han de adaptarse a la legislación vigente (Jung y cols., 2008). La materia particulada consiste en partículas de hollín o soot, de m...

  19. Efeito da suplementação de cobre e selênio na dieta de novilhos Brangus sobre o desempenho e fermentação ruminal

    Directory of Open Access Journals (Sweden)

    G.R. Del Claro

    2013-02-01

    Full Text Available Vinte e oito bovinos Brangus foram usados para determinar o efeito da suplementação de cobre e selênio no desempenho e na fermentação ruminal. Os animais foram divididos em: 1 C(Controle - sem a suplementação de cobre e selênio; 2 Se - 2mg Se/kg de matéria seca na forma de selenito de sódio; 3 Cu - 40mg Cu/kg de matéria seca na forma de sulfato de cobre; 4 Se/Cu - 2mg Se/kg de matéria seca na forma de selenito de sódio e 40mg Cu/kg de matéria seca na forma de sulfato de cobre. As pesagens dos animais foram feitas em intervalos de 28 dias, após jejum completo de 18 horas. Foram colhidas amostras de líquido ruminal para análises de ácidos graxos voláteis e pH. O ganho de peso diário aumentou com a suplementação de Se (P0,05. Os animais submetidos à suplementação com Cu apresentaram menor pH ruminal quando comparado com a suplementação Se/Cu (P0,05 entre os tratamentos. Apesar do pouco efeito na fermentação ruminal, as suplementações de selênio, cobre e selênio/cobre proporcionaram uma melhor eficiência alimentar.

  20. SEMI SINTESIS SENYAWA 2,4,6-TRINITROFENILHIDRAZON KALANON DAN UJI AKTIVITAS TERHADAP SEL LEUKIMIA L1210

    Directory of Open Access Journals (Sweden)

    Mochammad Chasani

    2011-11-01

    Full Text Available Kalanon adalah senyawa antikanker yang diisolasi dari Calophyllum biflorum Hends dan Ws. Aktivitas kalanon terhadap sel leukemia L1210 masih rendah yakni dengan niali IC50 = 59,4 ug/mL. Suatu senyawa dikatakan aktif sebagai antikanker jjika memiliki nilai IC50 di bawah 10 ug/mL. Penelitian ini ditujukan untuk mensintesis senyawa turunan kalanon dan diharapkan diperoleh senyawa baru yang mempunyai aktivitas lebih tinggi dibandingkan senyawa asal kalanon. Senyawa turunan kalanon diperoleh melalui reaksi antara kalanon dengan 2,4,6-trinitrofenilhidrazin. Reaksi dilakukan pada suhu 78 oC selama delapan jam. Analisis pendahuluan senyawa hasil sintesis dilakukan dengan metode kromatografi lapis tipis (KLT menggunakan eluen n-heksana dan etil asetat (2:1, v/v. Pemurnian senyawa hasil sintesis menggunakan teknik rekristalisasi dengan pelarut n-heksana dan diklorometan (3:1, v/v. Senyawa hasil sintesis diperoleh dengan Rf = 0,6609 dan rendemen 5,125 % ( b/b serta berupa kristal berwarna coklat. Identifikasi senyawa hasil sintesis dilakukan dengan spektrometer massa dan spektrofotometer IR. Hasil identifikasi menunjukkan bahwa senyawa hasil sintesis yang diharapkan telah terbentuk. Data spektrometer massa diperoleh ion molekul M+ = 647 dengan lepasnya molekul H2. Fragmen-fragmen yang terbentuk adalah pada m/e = 504, m/e = 479, m/e = 451, m/e = 429, m/e = 405, m/e = 377, m/e = 341, m/e = 316, m/e = 281, m/e = 253, m/e = 233, m/e = 207, m/e = 177, m/e = 156, m/e = 135, m/e = 96, m/e = 73, dan m/e = 41. Hasil spektrofotometer IR menunjukkan pita serapan pada 1654.8 cm-1 yang merupakan daerah regang ikatan rangkap C=N, pita serapan pada 3000 cm-1 – 3400 cm-1 adalah pita getaran OH fenol dan pita pada 1380 cm-1 menunjukkan rentangan simetri gugus nitro (NO2. Hasil uji sitotoksik terhadap sel leukemia L1210 menghasilkan nilai IC50 sebesr 47.69 μg/ml.

  1. Effects of Dietary Selenium Supplementation on Seminiferous Tubules and SelW, GPx4, LHCGR, and ACE Expression in Chicken Testis.

    Science.gov (United States)

    Khalid, Ahmed; Khudhair, Nagam; He, Huang; Peng, Zheng; Yaguang, Tian; Guixue, Zhang

    2016-09-01

    We investigated the effects of dietary selenium (Se) supplementation on the development of chicken testis and the expression of selenoprotein W (SelW), glutathione peroxidase4 (GPx4), luteinizing hormone/choriogonadotropin receptor (LHCGR), and angiotensin converting enzyme (ACE). Sixty roosters were assigned randomly into the control group fed with a basic diet (containing 0.3 mg Se/kg) and the experimental group fed with a diet (containing 0.6 mg Se/kg). The testes were collected individually at age of 6, 9, and 12 weeks. Se was supplemented in chicken feed for 15 days before sampling. The results indicated that dietary Se affected the number of cells in the seminiferous tubules and viability of Sertoli cells in vitro culture. SelW and GPx4 expression in the testes increased significantly in the experimental group compared to that in the control group. LHCGR expression in the testes increased significantly in the experimental group after 12 weeks compared to that in the control group. In contrast, ACE expression was inhibited in the experimental group compared to that in the control group. These results suggest that dietary supplementation with Se improved development of the seminiferous tubules at the cellular level and that SelW, GPx4, LHCGR, and ACE are involved. PMID:26899318

  2. Kekerasan mikro enamel gigi permanen muda setelah aplikasi bahan pemutih gigi dan pasta remineralisasi (Enamel micro hardness of young permanent tooth after bleaching and remineralization paste application

    Directory of Open Access Journals (Sweden)

    Budianto Liwang

    2014-12-01

    : Penelitian ini bertujuan untuk meneliti kekerasan mikro permukaan email gigi permanen muda, dan efek aplikasi pasta remineralisasi setelah pemutihan gigi. Metode: Empat belas gigi permanen muda ditempatkan dalam blok resin dengan jendela pada enamel permukaan bukal dan dilakukan pengukuran kekerasan permukaan enamel sampel awal dengan menggunakan alat Microvickers Hardness Tester. Kemudian dilakukan aplikasi bahan bleaching hidrogen peroxide 30% sebanyak 3 kali masing-masing selama 15 menit. Setelah aplikasi bahan bleaching, kekerasan permukaan enamel sampel diukur kembali. Sampel dibagi 2 kelompok; kelompok pertama diaplikasi pasta remineralisasi Hidroksi apatit + NaF 1450ppm, dan kelompok kedua diaplikasi pasta CPP-ACP + NaF 900ppm. Masing-masing pasta tersebut diaplikasikan selama 30 menit 7 hari berturut-turut. Setelah aplikasi pasta remineralisasi, sampel diukur kembali kekerasan permukaan enamelnya. Hasil: Kekerasan mikro permukaan enamel menurun setelah aplikasi pemutih gigi, dari 333.09 ± 10.49 VHN ke 299,15 ± 5.70 VHN. Kekerasan mikro setelah aplikasi Hidroxy apatit + NaF "> 1450ppm adalah 316,61 ± 5.87 VHN dan setelah aplikasi CPP-ACP + NaF 900ppm adalah 319,94 ± 3,25 VHN, namun kekerasan mikro setelah aplikasi pasta remineralisasi masih lebih rendah dari kekerasan mikro awal. Simpulan: Bahan pemutih gigi menurunkan kekerasan mikro permukaan enamel gigi permanen muda secara signifikan. Aplikasi pasta remineralisasi dapat meningkatkan kembali kekerasan mikro permukaan enamel gigi permanen muda.

  3. MODEL INTEGRASI ATRIBUT ASESMEN FORMATIF (IAAF DALAM PEMBELAJARAN BIOLOGI SEL UNTUK MENGEMBANGKAN KEMAMPUAN PENALARAN DAN BERPIKIR ANALITIK MAHASISWA CALON GURU

    Directory of Open Access Journals (Sweden)

    S. Saptono

    2013-04-01

    Full Text Available Dalam studi ini dikembangkan model integrasi atribut asesmen formatif (IAAF dalam pembelajaran Biologi Sel untuk mengembangkan kemampuan penalaran dan berpikir analitik mahasiswa calon guru Biologi. Atribut asesmen formatif yang diintegrasikan adalah collaboration, self-assessment, peer-assessment, dan feedback & learning progression. Model yang dikembangkan mencakup pembelajaran interaktif, pembuatan bagan konsep, dan reviu artikel jurnal internasional. Dimensi yang diukur dalam studi ini adalah perkembangan kemampuan mahasiswa membuat bagan konsep, kemampuan mahasiswa melakukan reviu artikel, dan kemampuan penalaran dan berpikir analitik mahasiswa. Hasil studi mengindikasikan bahwa Model IAAF dapat mengembangkan kemampuan penalaran dan berpikir analitik mahasiswa. In this study developed a model of integration of formative assessment attributes (IAAF in Cell Biology learning to develop reasoning skills and analytical thinking Biology student teachers. Attributes of formative assessment that  integrated is collaboration, self-assessment, peer-assessment, and feedback & learning progression. The model developed includes interactive learning, graphing concepts, and review articles of international journal. Dimensions measured in this study is the development of students’ ability to make a chart of concept, the ability of student conduct review of articles, and the ability to reason and think analytically students. The study results indicate that the IAAF model can develop reasoning skills and analytic thinking students.

  4. Coherent radio emission from cosmic ray air showers computed by Monte-Carlo simulation with SElFAS

    International Nuclear Information System (INIS)

    We present here the first results of SElFAS (Simulation of Electric Field emitted by Air Shower), a new Monte-Carlo simulation of the radio emission by cosmic ray extensive air shower. The simulation is based on the complete geometrical description of secondary electrons and positrons created in air showers generated by protons above 10 PeV. The energy, position and angular distributions of secondary particles are extracted from CORSIKA simulations . The electric field is then computed for each secondary particle during its travel in the atmosphere using the well-known equation of a moving charge which undergoes an acceleration. The total signal emitted by the air shower is per consequent the superposition of all particles contributions and it is computable for any ground position. We present the results obtained for the east-west and north-south polarizations of the total electric field. These polarizations are usually measured by radio detectors such as CODALEMA, LOPES, RAuger and AERA (Auger Engineering Radio Array). The characteristics and the comprehension of the radio emission of cosmic ray extensive air shower are crucial for the development of large radio detectors array.

  5. Diffusion, electrical mobility and ionic interactions in molten Salts; Diffusion, mobilite electrique et interactions ioniques dans les sels fondus

    Energy Technology Data Exchange (ETDEWEB)

    Lantelme, F. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1965-05-01

    The diffusion and the electrical migration of ions in the molten alkali nitrates LiNO{sub 3}, NaNO{sub 3} and KNO{sub 3} and in their mixtures have been examined using stable or radio-active isotope indicators. This experimental works shows that there are large differences in the diffusion coefficients and the electric mobilities when they are compared using the Nernst-Einstein formula. An interpretive model has been put forward which shows the role played by poly-ionic displacements: in a salt AC the particles moving are not only the free ions A{sup -} and C{sup +} but also the groups [A{sub n}C{sub m}]{sup (m-n)+}... These results confirm the importance of electrostatic attraction and of the polarizability of the ions. This mechanisms, furthermore, explains the inversions of electrical mobilities often observed in liquid ionic media. (author) [French] La diffusion et la migration electrique des ions dans les nitrates alcalins fondus LiNO{sub 3}, NaNO{sub 3} et KNO{sub 3} et dans leurs melanges ont ete examinees a l'aide d'indicateurs isotopiques stables et radioactifs. Cette etude experimentale fait apparaitre des ecarts importants entre les coefficients de diffusion et les mobilites electriques compares au moyen de la formule de Nernst-Einstein. Un modele d'interpretation a pu etre propose mettant en evidence l'existence de deplacements polyioniques: dans un sel AC les particules en mouvement sont non seulement les ions libres A{sup -} et C{sup +} mais aussi des groupes [A{sub n}C{sub m}]{sup (}m{sup -n)+}. Ces resultats precisent l'importance des attractions electro-statiques et de la polarisabilite des ions. D'autre part, ce mecanisme permet de rendre compte des renversements des mobilites electriques souvent observes en milieu ionique liquide.

  6. RESEARCH CONCERNING THE INFLUENCE OF SOME PROBIOTICS (Bio-Mos AND ORGANIC MINERALS (Sel-Plex ON PRODUCTION PERFORMANCES IN BROILER CHICKENS

    Directory of Open Access Journals (Sweden)

    M. BENŢEA

    2013-12-01

    Full Text Available The research was performed on 135 broiler chickens, COBB 500 hybrid divided in 3 groups with 45 chickens/group during 42 days. The group 2 (E received 0.02% organic selenium (Sel-Plex in combined forage. The group 3 (E received the prebiotic Bio-Mos in following proportions: 0.2% (phase I; 0.1% (phase II and 0.05% (phase III. The chickens from all 3 experimental groups were weighted in the beginning of the experiment, weekly during the experiment, and in the end of the experiment. The following parameters were recorded: the evolution of the body weight, average daily gain, average daily consumption, specific consumption, commercial yield and meat share in different carcass qualities. The use of the organic selenium (Sel-Plex in group 2 (E and pre-biotic (Bio- Mos in group 3 determined the increase of the body weight at delivery (42 days of age by 7.14% in group L2 (E and 7.26% in group L3 (E. The average daily gain increased by 7.25% and 7.38%. The specific consumption decreased by 4.24% in both experimental groups, compared to group L1-(M. The increase of the commercial yield by 1.48% in group L2 (E compared to control and high quality meat share (Ist quality + IInd quality in the same group by 1.39% compared to group 1 (M. The results confirm the favorable influence of the organic selenium (Sel-Plex and pre-biotic (Bio-Mos on main production and consumption indices and main slaughter indices in broiler chickens.

  7. Modification de la bentonite par un sel de diphosphonim – Applications à l’adsorption des colorants textiles (rouge, bleu et jaune Bemacide).

    OpenAIRE

    MEHDI, fatima

    2014-01-01

    L’objectif de notre étude est d’améliorer les propriétés de sorption de la bentonite vis-à-vis les colorants qui sont classés parmi les produits les plus toxiques et comparaison entre bentonite sodique et modifiée. La première partie du travail concerne la préparation et la caractérisation des bentonites modifiées avec un sel de diphosphonium(p-HpHBM). Les bentonites modifiées sont obtenues par échange cationique entre les cations inorganiques qui se trouvent dans les feuillets de...

  8. Alternativa de purificación de biodiésel obtenido por transesterificación de aceite de palma con metanol supercrítico

    OpenAIRE

    Garay Mayorga, Edgar Asdraldo

    2014-01-01

    En estudios recientes sobre la producción de biodiésel obtenido por transesterificación de aceite de palma con metanol, se han diseñado reactores que trabajan a condiciones supercríticas en ausencia de un catalizador, con resultados de conversiones superiores al 96%. Sin embargo, a la salida del reactor también hay glicerol (coproducto) y metanol (reactivo en exceso). Este proceso se lleva a cabo a condiciones de alta presión y alta temperatura, lo que se traduce en un proceso costoso de alto...

  9. Biodiésel de ésteres etílicos de ácidos grasos : correlación composición-propiedades

    OpenAIRE

    Alonso Castro, Elena

    2014-01-01

    Debido a la situación energética actual, el aumento de la demanda de petróleo y precio, así como su carácter no renovable, hace necesaria la búsqueda de alternativas viables para su uso como combustible. Una de ellas es el biodiésel, ya que tiene características similares y puede ser usado como sustituto de los combustibles convencionales, sin necesidad de grandes modificaciones en el motor. Hasta ahora los estudios se habían centrado en los esteres metílicos de ácidos grasos (FAMEs) por razo...

  10. A SEL1L mutation links a canine progressive early-onset cerebellar ataxia to the endoplasmic reticulum-associated protein degradation (ERAD machinery.

    Directory of Open Access Journals (Sweden)

    Kaisa Kyöstilä

    Full Text Available Inherited ataxias are characterized by degeneration of the cerebellar structures, which results in progressive motor incoordination. Hereditary ataxias occur in many species, including humans and dogs. Several mutations have been found in humans, but the genetic background has remained elusive in dogs. The Finnish Hound suffers from an early-onset progressive cerebellar ataxia. We have performed clinical, pathological, and genetic studies to describe the disease phenotype and to identify its genetic cause. Neurological examinations on ten affected dogs revealed rapidly progressing generalized cerebellar ataxia, tremors, and failure to thrive. Clinical signs were present by the age of 3 months, and cerebellar shrinkage was detectable through MRI. Pathological and histological examinations indicated cerebellum-restricted neurodegeneration. Marked loss of Purkinje cells was detected in the cerebellar cortex with secondary changes in other cortical layers. A genome-wide association study in a cohort of 31 dogs mapped the ataxia gene to a 1.5 Mb locus on canine chromosome 8 (p(raw = 1.1x10(-7, p(genome = 7.5x10(-4. Sequencing of a functional candidate gene, sel-1 suppressor of lin-12-like (SEL1L, revealed a homozygous missense mutation, c.1972T>C; p.Ser658Pro, in a highly conserved protein domain. The mutation segregated fully in the recessive pedigree, and a 10% carrier frequency was indicated in a population cohort. SEL1L is a component of the endoplasmic reticulum (ER-associated protein degradation (ERAD machinery and has not been previously associated to inherited ataxias. Dysfunctional protein degradation is known to cause ER stress, and we found a significant increase in expression of nine ER stress responsive genes in the cerebellar cortex of affected dogs, supporting the pathogenicity of the mutation. Our study describes the first early-onset neurodegenerative ataxia mutation in dogs, establishes an ERAD-mediated neurodegenerative

  11. "Öösel keeran end mitu korda küljelt küljele..."¡ : [luuletused] / Sanna Karlström ; soome keelest tõlkinud Elo Viiding

    Index Scriptorium Estoniae

    Karlström, Sanna

    2007-01-01

    Sisu: "Öösel keeran end mitu korda küljelt küljele..." ; "Kord taevas käis maa peal..." ; "Ühel päeval oskan muretseda nii nagu peab..." ; "Linn su selja taga muutub..." ; "Kogu öö paber krõbiseb..." ; "Metsaveerel..." ; "Me magame vastamisi, mina ja härra A...." ; "Arhitektuuri suurimaid saavutusi kujutavatelt..." ; "Omal ajal räägiti palju sellest, et monumenti peaks..." ; "Öösel on sinu aken sissepoole..." ; "Kustuta tuled ja putuka vari..."

  12. KAJIAN ENERGI SURYA UNTUK PEMBANGKIT TENAGA LISTRIK

    OpenAIRE

    I Gusti Ngurah Nitya Santhiarsa; I Gusti Bagus Wijaya Kusuma

    2009-01-01

    Solar cell is an energy conversion that changed solar energy into electrical energy. The energy produced by solar cell is the most energy which safe to the environment, but the area covered of its installation will be very wide. Beside that, solar cell most depends on the intensity of sun radiation, for where its continuity is questionable and become another problem. In order to make solar energy as an electrical power generator, the weakness of the problem should be eliminated. This paper wi...

  13. Modelado de la combustión en motores Diésel: revisión del estado del arte

    Directory of Open Access Journals (Sweden)

    Gabriel Fernando García Sánchez

    2013-06-01

    Full Text Available El estudio del proceso de combustión en motores Diésel ha sido, durante años, un tema de gran interés debido principalmente a la creciente necesidad de mejorar el rendimiento de los motores, reducir el consumo de combustible y reducir la emisión de contaminantes. Los estudios experimentales presentan la desventaja de requerir grandes recursos económicos y tiempo en su realización, razón por la cual se utilizan modelos computacionales que permiten estudiar el proceso de combustión de una forma más económica y práctica. En este artículo se presenta una revisión de varios de los modelos de combustión en motores Diésel más relevantes, desarrollados a nivel nacional e internacional, con el fin de dar al lector una visión de la evolución y el estado actual de este tipo de modelos.

  14. [Matthias Asche, Werner Buchholz, Anton Schindling. Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen; Stadt, Land und Konfession 1500-1721. T. 1-3] / Axel von C

    Index Scriptorium Estoniae

    Campenhausen, Axel von

    2015-01-01

    Arvustus: Asche, Matthias, Bucholz, Werner, Achindling, Anton. (Hrsg.) Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen; Stadt, Land und Konfession 1500-1721. T. 1-3. Münster: Aschendorff Verlag 2009, 2010, 2011

  15. [Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen : Stadt, Land und Konfession 1500-1721. Teil 4. Hrsg. von Matthias Asche, Werner Buchholtz und Anton Schindlin

    Index Scriptorium Estoniae

    Maasing, Madis, 1984-

    2013-01-01

    Arvustus: Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung : Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen : Stadt, Land und Konfession 1500-1721. Teil 4. (Katholisches Leben und Kirchenreform im Zeitalter der Glaubensspaltung, 72). Hrsg. von Matthias Asche, Werner Buchholtz und Anton Schindling. Verlag Aschendorff. Münster 2012

  16. [Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen. Stadt, Land und Konfession 1500-1721. Teil I] / Heinrich Wittram

    Index Scriptorium Estoniae

    Wittram, Heinrich, 1931-

    2011-01-01

    Arvustus : Die baltischen Lande im Zeitalter der Reformation und Konfessionalisierung. Livland, Estland, Ösel, Ingermanland, Kurland und Lettgallen. Stadt, Land und Konfession 1500-1721. Teil I. Münster : Aschendorff, 2009. (Katholisches Leben und Kirchenreform im Zeitalter der Glaubensspaltung, 69)

  17. Gestión de energía en sistemas híbridos Red-FV-Diésel en el proyecto MED-Solar

    OpenAIRE

    Velasco Quesada, Guillermo; Casellas Beneyto, Francisco; Guinjoan Gispert, Francisco; Piqué López, Robert; Martínez García, Herminio; A. Pineau; Graillot, A.

    2014-01-01

    El presente trabajo aborda el diseño de la estructura de un sistema de gestión de energía eléctrica aplicable a sistemas eléctricos híbridos formados por la red eléctrica y sistemas de generación fotovoltaica, generación diésel y almacenamiento. La implementación de estos sistemas híbridos y sus sistemas de gestión será, dentro del marco del Proyecto MED-Solar, en tres países del área del Máshrek (Líbano, Palestina y Jordania), con el fin de demostrar que este tipo de instalaciones puede redu...

  18. Déstructuration orale de pains enrichis en fibres et à teneur réduite en sel et impact sur l'index glycémique

    OpenAIRE

    Billy, Ludivine; SAULNIER, Luc

    2014-01-01

    Deux méthodes de mesure ont été développées pour évaluer la fragmentation et la viscosité du pain en cours de mastication. Appliquées à un panel d’individus et de pains enrichis en fibres et à teneur réduite en sel, elles permettent de déterminer l’état de déstructuration du bol, et après mesure de son hydratation, sa modélisation grâce à un coefficient de plastification de l’amidon. La fragmentation favorise l’absorption progressive de la salive par les particules, permettant ainsi leur aggl...

  19. Valorización de biomasa mediante catálisis heterogénea: producción de biodiésel y furfural

    OpenAIRE

    Rubio Caballero, Juan Miguel

    2014-01-01

    La ‘Biorrefinería’ es un conjunto de procesos dirigidos hacia la transformación de la biomasa en combustibles, energía y productos químicos, siendo las plataformas oleoquímica y de azúcares (C6 y C5) las de mayor interés industrial. La plataforma oleoquímica se basa principalmente en la transformación de triglicéridos en biodiésel, utilizándose industrialmente la reacción de transesterificación homogénea básica. Sin embargo, las dificultades exhibidas fomentan el desarrollo de nuevos catal...

  20. Eliminación de carbonilla generada por motores diésel mediante combustión catalizada por óxidos mixtos basados en cerio

    OpenAIRE

    Guillén Hurtado, Noelia

    2013-01-01

    La presente Tesis Doctoral está dedicada a la síntesis, la caracterización y el estudio de la actividad catalítica en la combustión de carbonilla generada por motores diésel de óxidos CeO₂-ZrO₂, y CeO₂-PrO₂. Con este estudio se ha conseguido alcanzar una mayor comprensión del papel catalítico de estos materiales en la combustión de carbonilla, logrando revelar la diferente implicación de los dos mecanismos de reacción mediante los que los óxidos basados en cerio pueden catalizar esta combust...

  1. ALAN DIŞI OKUL DENEYİMİ II UYGULAMASININ KURUMSAL, YÖNTEMSEL VE GÜDÜSEL SONUÇLARI

    OpenAIRE

    ANŞIN, Arş. Gör. Selma

    2002-01-01

    ALAN DIŞI OKUL DENEYİMİ II UYGULAMASININ KURUMSAL, YÖNTEMSEL VE GÜDÜSEL SONUÇLARI *Uzm.Arş. Gör. Selma ANŞIN Ülkemizde, 1997-1998 öğretim yılından itibaren YÖK, Milli Eğitim Bakanlığı ve Dünya Bankası işbirliği çerçevesinde, Eğitim Fakültelerinin yeniden yapılandırılmasıyla ilgili standart bir program geliştirilmiştir.[1] Bu programın temel dayanağı; öğretmenlerin Milli Eğitim amaçlarını gerçekleştirmede önemli rollere sahip olması, öğrenme ve...

  2. Procédé d'ancrage induit par des sels de diazonium : mécanisme, application(s)

    OpenAIRE

    Mesnage, Alice

    2011-01-01

    Au cours de ce travail, trois procédés de fonctionnalisation de surface à partir de sels de diazonium ont été étudiés, à savoir : un procédé spontané, un procédé activé chimiquement et le procédé appelé Graftfast (activation chimique en présence de monomères vinyliques). Ces procédés, dits de chimie verte, fonctionnent à température ambiante, pression atmosphérique, en milieu aqueux et sans apport extérieur d'énergie. Ils conduisent à la formation de films organiques (notamment de polymères ...

  3. Preparation and characterization of semiconductor thin film cells of n-CdSe and CdSel-x Tex. Application in solar cells of liquid union

    International Nuclear Information System (INIS)

    The development of the new energy sources, constitutes one of the most active and changing investigation areas of nowday. Within this frame, the conservation of photovoltaic solar energy, has taken a particular importance, as these systems become directly the photovoltaic solar energy, which incises on a semiconductor, in electric energy. In spite of this advantage, the use of photovoltaic systems is limited, being the main reason for this, the still high cost of the devices. One of the objectives of this Memory is to contribute to the reduction of these photovoltaic devices by using available methods for the preparation of photosensitive material, and for the union formation. The chosen preparation method is the electrochemical one and the electric field is made up in the interphase semiconductor/electrolyte, dipping the semiconductor in a convenient electrolyte. Summarizing, it can be said that the Memory's objetive presented is to discover the experiences realized in the electrochemical preparation of the n-CdSel-x Tex and its characterization by chemical analysis, X-rays difraction, electronic microscope of swept, optical techniques and photoelectrochemical methods. From the data obtained with these techniques, a study of the physical parameters evolution which determine the photovoltaic properties of the semiconductor, is made, as: the concentration of minoritary carriers, ND, and the diffusion length of these carriers, LP. Finally, taking into account the results obtained by the characterization of n-CdSe and CdSel-x Tex, is made from the construction of the photoelectrochemical cell, using two kinds of electrolyte: sulfide- polysulfide ands ferro-ferricyanide. (Author)

  4. Influencia de los parámetros de ajuste de un sistema “dual-fuel” sobre la operación y el desempeño de un motor diésel usado para generación en un campo petrolero

    OpenAIRE

    Pérez Súa, Sergio

    2015-01-01

    Se describe el sistema dual-fuel para motores diésel, operando los motores de combustión interna, donde se sustituyó parte del combustible con gas natural u otro combustible gaseoso. El sistema permite un ahorro económico significativo por la diferencia de precio entre el diésel y el gas natural, la disponibilidad de gas en sitio y la disminución en la emisión de gases contaminantes de la atmósfera debido a las bondades que presenta el gas natural frente al diésel. Se presentan los resultados...

  5. Selenium in bovine plasma, soil and forage measured by neutron activation analysis Medição dos níveis de selênio no plasma bovino, solo e forragem por meio de análises de ativação neutrônica

    Directory of Open Access Journals (Sweden)

    S. Gil

    2004-04-01

    Full Text Available A deficiência de selênio já foi identificada pela medição da atividade da enzima glutationa de peroxidase no sangue de animais (vacas criados em certas regiões do Pampa Úmido, mais especificamente na cidade de Nueve de Julio (Buenos Aires - Argentina. Em trabalho anterior, a análise de ativação neutrônica confirmou esses baixos níveis de selênio em uma determinada fazenda de cria para gado de corte. Neste trabalho, foram analisados os níveis de selênio no solo, na forragem e no plasma dos animais do mesmo estabelecimento. A população analisada (n=60 apresentou níveis de selênio abaixo do normal (30,1 ± 4,6µg/ml. De maneira semelhante, a concentração de selênio da forragem consumida - matéria seca igual a 30% - proveniente de uma área de baixada do piquete, assim como o feno de palha de trigo (MS=91% utilizado como suplemento, foi muito baixa (<0,05µg/gMS. A concentração de selênio no solo foi maior (entre 3,4 e 3,9µg/g MS do que o intervalo normal (entre 0,02 e 2,50 µg/g MS em todas as frações analisadas. Desse modo, confirma-se que a deficiência de selênio nos animais analisados é atribuída por uma determinação direta do mineral, ou seja, os resultados indicam que pode existir relação entre a baixa concentração de selênio na forragem e no suplemento, e sua deficiência nos animais.

  6. Nouveaux développements dans la chimie des sels de diazonium en catalyse organométallique : catalyse hétérogène en milieux aqueux

    OpenAIRE

    Le Callonnec, Francois

    2014-01-01

    Les sels de diazoniums sont des électrophiles particulièrement réactifs et versatiles. Leur réputation de composés instables a malheureusement limité leur utilisation en synthèse organique. Au cours de ce projet de thèse, de nouvelles méthodologies plus sûres pour la mise en oeuvre de sels de diazoniums pour des couplages organométalliques ont été découvertes. Ces recherches impliquent des couplages carbone-carbone catalysés au Palladium ainsi que des réactions de C-H arylation à l'aide d'une...

  7. Comportement mécanique des cavités dans le sel. Etat actuel de nos connaissances Mechanical Behaviour of Salt Cavities. Present State of Our Knowledge

    Directory of Open Access Journals (Sweden)

    Boucly P.

    2006-11-01

    Full Text Available L'utilisation depuis dix ans des premières cavités salines créées sur le site de Tersanne s'est accompagnée d'une réduction de leur volume relativement importante. Cette observation a conduit le Gaz de France à développer d'importantes études sur le comportement rhéologique du sel dans lequel sont creusées les cavités. Ces études, effectuées en collaboration avec des laboratoires universitaires, ont consisté en de nombreux essais en laboratoire (essais de longue durée à la température des terrains visant à déterminer les lois de comportement du matériau. Parallèlement, des modèles de calcul de divers degrés de complexité ont été élaborés afin de prendre en compte ces lois dans l'estimation de la stabilité et de la tenue à long terme de la cavité. Ces études ont abouti récemment à la mise au point d'un premier modèle de comportement du sel qui rend compte de l'ensemble des observations effectuées à ce jour sur les cavités. Grâce à ce modèle, il est maintenant possible d'étudier quelle influence a sur leur volume un type d'utilisation donné des cavités. The exploitation over the last ten years of the first salt cavities created in the Tersanne area has resulted in a relatively large decrease in their volume. This observation led Gaz de France to do extensive research on the rheological behavior of the salt into which cavities are leached. This research, performed in cooperation with university laboratories, consisted of numerous laboratory tests (long-duration tests at formation temperatures to determine the behavior laws of the material. At the same time, models for computing different degrees of complexity were developed to take these laws into account in evaluating the stability and long-term resistance of the cavity. This research has recently resulted in the development of an initial salt-behavior model involving all the observations made concerning these cavities to date. This model can now be

  8. PEMANFAATAN BAHAN ORGANIK SEBAGAI BAHAN PEMBAWA INOKULAN FUNGI MIKORIZA ARBUSKULA

    Directory of Open Access Journals (Sweden)

    ANNE NURBAITY

    2014-04-01

    Full Text Available Arbuscular Mycorrhizal Fungi (AMF is known as one type of biofertilizer. The carrier for this biofertilizer is usually made from inorganic material such as zeolite. Currently, it is important to find the alternative materials that can be used as biofertilizers’ carrier due to the need of lower cost and easily available, such organic matter. Rice straw and husk are some of the organic matter sources that can be used as a carrier of AMF. A glass house experiment was conducted to determine the effectiveness of different type of organic matter as a carrier of AMF’s inoculum. The experiment was arranged in factorial randomized block design with two factors, i.e. type of organic matter (zeolite as a control, straw, burnt-rice’s husk and combination of straw and rice husk 50/50 v/v and type of different hosts of AMF’s (Jatropha sp. and Sorghum sp.. The results showed that application of burnt-rice’s husk was better carrier of AMF inoculum instead of straw or combination of straw and burnt-rice’s husk. The quality of AMF inoculum with burnt-rice’s husk as a carrier was as good as the control inoculum that used zeolite, in terms of the number of spores, the percentage of root colonization, root length colonized and root fresh weight. In summary, burnt-rice’s husk has a good potential carrier of AMF biofertilizer.

  9. Limbah Bahan-Bahan Prosesing Di Laboratorium Radiologi Medan

    OpenAIRE

    Yollanda Susanti

    2008-01-01

    Laboratorium radiologi dental merupakan salah satu fasilitas kesehatan yang dapat menghasilkan sesuatu hal yang berbahaya dimana selama ini tidak pernah mendapat perhatian, seperti : fixer, leadfoil, x-ray film yang telah dipakai atau rusak, cleaner dan developer, maupun limbah yang tidak berbahaya yakni larntan developer bekas atau terlarnt air, dimana kandungan hydroquinone-nya yang bersifat toksik sudah tidak ada lagi. Limbah-limbah yang dihasilkan laboratorium radiologi dental perlu d...

  10. PEMANFAATAN BAHAN ORGANIK SEBAGAI BAHAN PEMBAWA INOKULAN FUNGI MIKORIZA ARBUSKULA

    OpenAIRE

    ANNE NURBAITY; DIYAN HERDIYANTORO; OVIYANTI MULYANI

    2014-01-01

    Arbuscular Mycorrhizal Fungi (AMF) is known as one type of biofertilizer. The carrier for this biofertilizer is usually made from inorganic material such as zeolite. Currently, it is important to find the alternative materials that can be used as biofertilizers’ carrier due to the need of lower cost and easily available, such organic matter. Rice straw and husk are some of the organic matter sources that can be used as a carrier of AMF. A glass house experiment was conducted to determine the ...

  11. Detecting flooded areas with machine learning techniques: case study of the Selška Sora river flash flood in September 2007

    Science.gov (United States)

    Lamovec, Peter; Veljanovski, Tatjana; Mikoš, Matjaž; Oštir, Krištof

    2013-01-01

    Floods seem to appear with increased frequency from one year to another. They create great damage to property and in some cases even result in lost lives. However, a quick and effective response by rescue services can greatly reduce the consequences. Machine learning techniques can reduce the time necessary for flood mapping. We test various machine learning methods to find the one with the highest classification accuracy. We also present the most important points for quick and effective machine learning procedures on remote sensing data. First, the data must be prepared correctly. We use satellite images, digital terrain models (DTMs), and the river network. The data in its primary form (e.g., bands of multispectral satellite images or DTMs) is insufficient. We also need certain derived attributes, such as the vegetation index or the slope derived from the DTM. Second, we must select suitable training samples and a suitable machine learning method. This approach to determining floods is presented in a case study of flash floods in the Selška Sora river valley. Machine learning techniques have proven successful in quickly determining flooded areas. The best results are produced by the J48 decision tree algorithm. The success of the ensemble machine learning methods is comparable to the J48 algorithm, while the JRip classification is not as good.

  12. Metabolism and internal decontamination of a radioactive zirconium-niobium salt; Metabolisme et decontamination interne chez le rat, d'un sel de zirconium-niobium radioactif

    Energy Technology Data Exchange (ETDEWEB)

    Gavend, M.; Rinaldi, J.; Rinaldi, R. [Commissariat a l' Energie Atomique, Grenoble (France). Centre d' Etudes Nucleaires

    1969-07-01

    A study in the rat of the metabolism of a salt of {sup 95}Zr-{sup 95}Nb injected by the intravenous route has allowed us to display the following points: - the fast decrease of the blood concentration of radioisotopes, - the durable accumulation of radioisotopes in the bone, - the strong urinary elimination during the first hours. A study of the possibilities of internal decontamination of {sup 95}Zr-{sup 95}Nb was also carried out. Among all the tested chemicals, only zirconium citrate seems effective. (authors) [French] Une etude chez le rat du metabolisme d'un sel de {sup 95}Zr-{sup 95}Nb administre par voie veineuse a permis de mettre en evidence les points suivants: - une diminution rapide de la concentration sanguine en radioelements, - une accumulation durable des radioelements dans les os, - une forte excretion urinaire durant les premieres heures. Une etude des possibilites de decontamination interne du {sup 95}Zr-{sup 95}Nb a egalement ete poursuivie. De tous les composes chimiques qui ont ete testes, seul le citrate de zirconium semble etre efficace. (auteur)

  13. Metacognitive Structures Occuring in Mathematical Modelling Within A Technology Enhanced Environment [Teknoloji Destekli Ortamda Matematiksel Modellemede Ortaya Çıkan Üst Bilişsel Yapılar

    Directory of Open Access Journals (Sweden)

    Çağlar Naci Hıdıroğlu

    2015-08-01

    Full Text Available The aim of this study is to explain metacognitive structures occurring in mathematical modelling within a technology aided environment. How metacognitive structures in modelling process are shaped within the dimensions of planning, monitoring, evaluation and prediction was examined. The study which is a case study, was conducted with a collaborative group of three freshman students who are studying in Secondary Mathematics teacher education programme. Data was collected from video recordings which were taken while collaborative group was solving the modelling problem, written answers of students on solution, GeoGebra solution files and observation notes which were taken by the researchers during problem solving process. During data analysis process, categories were formed by applying thematic coding and metacognitive structures were specified. As a result of data analysis, metacognitive structures in modelling process for planning, monitoring, evaluation and prediction steps are grouped under eighteen categories. Metacognitive activities organised cognitive activities in technology aided modelling process and support other metacognitive activities. It is believed that this study will bring a different and detailed view into metacognitive activities in mathematical modelling process. [Çalışmanın amacı, teknoloji destekli matematiksel modelleme sürecinde ortaya çıkan üst bilişsel yapıları açıklamaktır. Üst bilişsel yapıların modelleme sürecinde nasıl şekillendiği planlama, izleme, değerlendirme ve tahmin boyutlarında ele alınarak incelenmiştir. Durum çalışması niteliğindeki çalışma, ortaöğretim matematik öğretmenliğinde öğrenim gören üç birinci sınıf öğrencisinin oluşturduğu bir çalışma grubuyla yürütülmüştür. Veriler, çalışma grubunun modelleme problemini çözerken alınan video kayıtlarından, problemin çözümü ile ilgili yazılı yanıtlarından, GeoGebra çözüm dosyalar

  14. SEU and SEL response of the Westinghouse 64K E2PROM, analog devices AD7876 12-bit ADC, and the Intel 82527 Serial Communications Controller

    International Nuclear Information System (INIS)

    The Westinghouse SA3823 64K E2PROM radiation-hardened SONOS non-volatile memory exhibited a single-event-upset (SEU) threshold in the read mode of 60 MeV-cm2/mg and 40 MeV-cm2/mg for data latch errors. The minimum threshold for address latch errors was 35 MeV-cm2/mg. Hard errors were observed with Kr at Vp = 8.5 V and with Xe at Programming voltages (Vp) as low as 7.5 V. NO hard errors were observed with Cu at any angle up to Vp = II V. The system specification of no hard errors for Ar ions or lighter was exceeded. No single-event latchup (SEL) was observed in these devices for the conditions examined. The Analog Devices AD7876 12bit analog-to-digital converter (ADC) had an upset threshold of 2 MeV-cm2/mg for all values of input voltage (Vin), while the worst-case saturation cross section of ∼2 x 10-3 cm2 as measured with Vin = 4.49 V. No latchup was observed. The Intel 82C527 serial communications controller exhibited a minimum threshold for upset of 2 MeV-cm4/mLi, and a saturation cross section of about 5 x 10-4cm2. For latchup the minimum threshold was measured at 17 MeV-cm2/mg, and cross section saturated at about 3 x 10-4 cm2. Error rates for the expected applications are presented

  15. Eosinophilic pneumonitis induced by aerosol-administered diesel oil and pyrethrum to mice Neumonía eosinofílica inducida por aerosol de aceite diésel y piretroide en ratones

    Directory of Open Access Journals (Sweden)

    Maria Lúcia B. Garcia

    2009-06-01

    Full Text Available OBJECTIVE: To confirm the episode of eosinophilic pneumonitis that occurred in March 2001 in Manaus, Amazon, northern Brazil, as secondary to home aerosolization with 2% cypermethrin diluted in diesel compared with the more conventional 1% cypermethrin and soybean solution used in prophylaxis of dengue. METHODS: Four groups of Swiss mice were kept in polycarbonate cages aerosolized with one of the following solutions: diesel, diesel and cypermethrin, soy oil and cypermethrin, and saline. Three and 6 days after exposure, resistance and compliance of the respiratory system and white cell kinetics in peripheral blood and lung tissue were analyzed. RESULTS: The group exposed to diesel and cypermethrin showed higher respiratory system resistance (p OBJETIVO: Confirmar el episodio de neumonía eosinofílica ocurrido en marzo de 2001 en Manaus, Amazonas, en el norte de Brasil, secundario al uso de aerosol de cipermetrina diluida al 2% en aceite diésel en las viviendas en comparación con la profilaxis más convencional contra el dengue, basada en cipermetrina al 1% con aceite de soya. MÉTODOS: Se mantuvieron cuatro grupos de ratones suizos en jaulas de policarbonato y se aplicó aerosol con una de las siguientes soluciones: aceite diésel, aceite diésel y cipermetrina, aceite de soya y cipermetrina, y solución salina. Se analizaron la resistencia y el funcionamiento del sistema respiratorio y la cinética de leucocitos en sangre periférica y tejido pulmonar a los tres y seis días después de la exposición. RESULTADOS: El grupo expuesto a aceite diésel y cipermetrina mostró mayor resistencia del sistema respiratorio (P < 0,001, peor funcionamiento (P = 0,03 y más eosinófilos en sangre (P = 0,03 y tejido pulmonar (P = 0,005 que los otros grupos. Se observó un aumento de neutrófilos en sangre en todos los grupos experimentales al tercer día después de la exposición (P < 0,001. CONCLUSIONES: El aceite diésel con cipermetrina indujo una

  16. Perfil proteico e metabolismo oxidativo de cordeiros experimentalmente infectados pelo Haemonchus contortus e suplementados com selênio e vitamina E Protein Profile and oxidative metabolism of lambs experimentally infected with Haemonchus contortus and supplemented with selenium and vitamin E

    OpenAIRE

    Paula Rocha Sampaio Junchem Nicolodi; Emmanuel Veiga de Camargo; Diego Zeni; Ricardo Xavier da Rocha; Fernanda Cavallini Cyrillo; Fernando Nogueira Souza; Alice Maria Melville Della Libera; Carlos Bondan; Marta Lizandra do Rêgo Leal

    2010-01-01

    Para avaliar a influência da suplementação com selênio e vitamina E sobre o perfil proteico e metabolismo oxidativo de cordeiros infectados experimentalmente pelo Haemonchus contortus, trinta cordeiros fêmeas foram distribuídos em quatro grupos: G1 (n=10): animais infectados; G2 (n=10): infectados e suplementados; G3 (n=5): controle; e G4 (n=5): não infectados e suplementados. Os grupos 1 e 2 receberam 500 larvas de H. contortus (L3), via oral, por um período de 20 dias, com intervalo de dois...

  17. Performance, broiler carcass and meat quality characteristics, supplemented with organic seleniumDesempenho, características de carcaça e qualidade de carne de frangos de corte suplementados com selênio orgânico

    Directory of Open Access Journals (Sweden)

    Aniele Pissinati

    2012-02-01

    Full Text Available This research was aimed at assessing parameters such like productive and meat quality characteristics of broilers fed on diets with different levels of organic selenium (0; 0,2; 0,4 e 0;6 mg Se/kg of feed. Three hundred male one-day old chickens have been submitted to a completely randomized design, with five repetitions of 15 birds per experimental parcel. Characteristics such like performance, yield grade, cuts, and meat quality have been assessed. The results revealed that the supplementation with selenium did not affect productive characteristics of the broilers. However, it produced a linear reduction on the abdominal fat of the carcasses assessed. Regarding meat quality, the supplementation with organic selenium linearly increased the pH levels at the breast. Besides, it linearly reduced the loss of water by pressure and the shear force, which in turn improved the final quality of the meat.O trabalho teve como objetivo avaliar as características produtivas, de rendimento e qualidade de carne de frangos de corte alimentados com dietas suplementadas com diferentes níveis de selênio orgânico (0; 0,2; 0,4 e 0,6 mg Se/kg de ração. Foram utilizados 300 pintainhos de corte machos, da linhagem Cobb, com um dia de idade. Foi adotado um delineamento inteiramente ao acaso, com quatro tratamentos (níveis de selênio orgânico, com cinco repetições de 15 aves por parcela experimental. Foram avaliados o desempenho, rendimento de carcaça e cortes e a qualidade de carne de frangos de corte. Os resultados de desempenho mostram que a suplementação de selênio não alterou os dados produtivos, porém, reduziu linearmente a gordura abdominal da carcaça. Quanto à qualidade de carne, a suplementação de selênio orgânico aumentou linearmente o pH da carne do peito e reduziu a perda de água por pressão e a força de cisalhamento, melhorando assim a qualidade da carne das aves.

  18. The Comparison of Leadership Behaviors (Initiation of Structure Dimension of College of Physical Education and Sport at Selçuk University Students According to Their Sexes

    Directory of Open Access Journals (Sweden)

    A. Naci ARIKAN

    2005-12-01

    Full Text Available The main purpose of this study is to identify whether Physical Education display meaningful difference according to their sexes while performing Initiation of Structure Dimension in leadership behaviour that these students will have a great role information of our new generations, in our daily life and education system in the future.The data have been obtained through a thirty questions questionnaire. The questionnaire of determining leadership behaviour of “Initiation of Structure and Showing Consideration” however the first 15 questions which from the Initiation of Structure have been assesed.The study has been carried out on the data that have been obtained from 235 students, 69 of whom grils, 166 of whom boys at Selçuk University College of Physical Education and Sport in 2001-2002. The data has been evaluated by calculating frequency , percentage, and means.At the end of the analysises done, cocerning each matter that includes leadership behaviour in its own, it has been found that there is a meaningful difference in favour of the girls in the first question, in favour of the boys in the sixth question and that there is no meaningful difference in the 13th question.In the light of the data collected, it is possible to say that female and male students have (Initiation of Structure leadership behaviour as a result of no meaningful difference in many questions. Without making any sexual discrimination (Students of Physical Education can be said to accept and show the leadership behaviour in(Initiation of Structure Dimension generally as the same behaviour code.In conclusion, (Students of Physical Education who/which is a candidate for the job of teacher of the future must be a leader in society in which they live, their circles and can show leadership behaviour. These students must build a good harmony, team soul and communication network with their teachers, friends and circles. Theymust also create in the frame of love

  19. BAZI TANELİ ÜRÜNLERİN İÇSEL SÜRTÜNME AÇISI VE BASINÇ ORANLARI ÜZERİNE TANE NEM İÇERİĞİNİN ETKİSİ

    OpenAIRE

    ÖZTÜRK, Turgut; KİBAR, Hakan; ESEN, Bilge

    2012-01-01

    Taneli ürünleri depolama sistemlerinin projelendirilmesinde içsel sürtünme açısı () ve basınç oranı (k) depo kesit geometrisindeki basınç dağılımı üzerinde oldukça önemlidir. Bu çalışmada içsel sürtünme açısı ve basınç oranı tane nem kapsamının bir fonksiyonu olarak seçilmiş bazı taneli ürünler (fındık, mısır, arpa ve soya) için araştırılmıştır. Çalışmada basınç oranının belirlenmesinde üç farklı yöntem kullanılmıştır. Araştırma sonucunda tane nem içeriğindeki artışa bağlı olarak seçilmiş ür...

  20. Concentrações de selênio na dieta e nas unhas de pré-escolares de um centro de educação infantil de São Paulo-SP
    Selenium in diet and nails of preschool from the nursery in São Paulo, Brazil

    Directory of Open Access Journals (Sweden)

    C. R. SILVA

    2011-04-01

    Full Text Available

    O estudo objetivou determinar a concentração de selênio nas unhas e na dieta consumida por 66 pré-escolares matriculados em um Centro de Educação Infantil do Município de São Paulo. Para a obtenção do consumo alimentar foi utilizado o método de registro alimentar, com a aplicação da pesagem direta dos alimentos. Os teores de selênio na dieta e nas unhas foram determinados por espectrometria de absorção atômica em forno de grafi te. A ingestão média de selênio das crianças de 2 a 3 anos foi de 18,7μg/dia e das de 4 a 6 anos de 29,5μg/dia. Os teores de selênio nas unhas das crianças de 2 a 3 anos foi 0,50μg/g e nas de 4 a 6 anos 0,48μg/g. Os resultados sugerem que os pré-escolares recebem na instituição uma alimentação adequada com relação ao selênio.

  1. Simulació, disseny i estudi de la viabilitat d’una planta de producció de biodièsel a partir d’oli vegetal segons el mètode Lurgi

    OpenAIRE

    Salguero Sende, Carlos Daniel; Vila Domingo, Marta

    2012-01-01

    El projecte següent té com a pretensió bàsica l’estudi del procés Lurgi dedicat a la producció de biodièsel; un mètode bastament aplicat i amb resultats molt prometedors sobre tant la seva eficiència com rendibilitat. És per aquest motiu que es pretén analitzar-lo en profunditat per descobrir-ne els seus avantatges i aprofitar l’oportunitat per dissenyar una planta que n’empra els seus coneixements. En el projecte es diferencien dues parts bàsiques: en primer lloc, es duu a ter...

  2. CLIC- LHC Temelindeki Serbest Elektron Lazer (SEL-Çarpıstırıcısında 40Ar Çekirdeğinin Düşük Enerjili Seviyelerinin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Aynur TATAR

    2009-04-01

    Full Text Available Nükleer Rezonans Floresans (NRF çekirdekte yapısal bozulmalar olusturmadan incelenme imkanı saglayan bir metottur. Bu çalısmalarda kullanılacak ısınımın yüksek kaliteli bir ısınım olması çalısma sonuçları açısından çok önemlidir. Serbest Elektron Lazer (SEL demeti Nükleer Rezonans Floresans (NRF deneyleri için ideal bir kaynaktır. Bu kaynak tek renkli, ayarlanabilir enerjili ve büyük oranda düzeyde kutuplanabilir bir ısınımdır. Large Hadron Collider (LHCdan alınan büyük enerjili çekirdek demetleri ile Serbest Elektron Lazer (SEL demeti uygun bir noktada çarpıstırılacak ve olusan büyük miktardaki olay sayısı çekirdeklerin uyarılma seviyelerini incelemek imkanı saglayacaktır. Argon (40Ar çekirdegi LHC'nin ikinci fazında kullanılacak bir çekirdek olup bu çalısmanın benzerleri ikinci fazda kullanılacak diger çekirdekler ve uygun tüm çekirdekler için de yapılabilir. Bu çalısmada Argon (40Ar çekirdeginin (g, g¢ deneylerinde gözlenmis enerji seviyeleri seçilerek incelenmistir.

  3. Evaluación de rutas alternativas de aprovechamiento de la glicerina obtenida en la producción de biodiésel: una revisión

    Directory of Open Access Journals (Sweden)

    Jorge Augusto Hernández Mora

    2015-01-01

    Full Text Available Producto del creciente mercado del biodiésel, se genera un incremento en la oferta de glicerina sin refinar, obtenida como subproducto del proceso, lo que ha motivado el estudio de su utilización. En este trabajo se aplicó un método cualitativo por puntos, considerando tres factores para clasificar las opciones de aprovechamiento de glicerina: (i análisis DOFA (Debilidades, Oportunidades, Fortalezas, Amenazas, (ii análisis de costos y (iii evaluación del impacto ambiental. A cada factor se asignó una ponderación cuyo resultado permite concluir sobre la viabilidad de cada alternativa estudiada para una planta de producción de biodiésel de 20.000 l/día, que genera aproximadamente 2000 kg/día de glicerina cruda. Como resultado se obtiene un orden jerárquico de factibilidad de implementación de las alternativas en el que el uso de la glicerina cruda en la producción de fertilizantes constituye la mejor opción, ya que mejora la fertilidad del suelo con la incorporación de subproductos y residuos agroindustriales, y es una de las opciones de menor costo de implementación. El método de evaluación aplicado resulta apropiado para una estimación inicial de los diferentes usos de la glicerina cruda, aunque posteriormente requiere un análisis más detallado de la mejor opción.

  4. Sustitución de combustible diésel por gas licuado de petróleo en un tostador de café de la Torrefactora del Este en Cuba

    Directory of Open Access Journals (Sweden)

    Jehannara Calle Domínguez

    2010-12-01

    Full Text Available El tema del uso racional de la energía y el cuidado del medio ambiente se ha convertido en una preocupación para dirigentes y técnicos relacionados con la investigación y los servicios, por el encarecimiento de los portadores energéticos y el impacto medioambiental. Actualmente en Cuba, el tostado de café se realiza utilizando diésel como portador energético, sin embargo, es conocido que a nivel mundial se utilizan preferentemente combustibles gaseosos, tales como, el gas natural y gas licuado de petróleo. En este trabajo se estudiaron algunos aspectos de factibilidad técnica-económica de sustitución del combustible diésel por gas licuado de petróleo en la Torrefactora del Este del Grupo Empresarial Cubacafé. Se realizó un balance de energía. Se calculó el volumen del tanque de almacenamiento requerido. Se obtuvo que la cantidad de gas licuado de petróleo necesaria sería de 1240 L diarios con un gasto de 496 dólares. En relación al aspecto ambiental, fue favorable, ya que se dejarían de emitir 383,8 kg de CO2 y 7,9 kg de SO2 por día; garantizándose una reducción en la cantidad de emisiones a la atmósfera.

  5. Sustitución de combustible diésel por gas licuado de petróleo en un tostador de café de la Torrefactora del Este en Cuba

    Directory of Open Access Journals (Sweden)

    Jehannara Calle Domínguez

    2010-01-01

    Full Text Available El tema del uso racional de la energía y el cuidado del medio ambiente se ha convertido en una preocupación para dirigentes y técnicos relacionados con la investigación y los servicios, por el encarecimiento de los portadores energéticos y el impacto medioambiental. Actualmente en Cuba, el tostado de café se realiza utilizando diésel como portador energético, sin embargo, es conocido que a nivel mundial se utilizan preferentemente combustibles gaseosos, tales como, el gas natural y gas licuado de petróleo. En este trabajo se estudiaron algunos aspectos de factibilidad técnica-económica de sustitución del combustible diésel por gas licuado de petróleo en la Torrefactora del Este del Grupo Empresarial Cubacafé. Se realizó un balance de energía. Se calculó el volumen del tanque de almacenamiento requerido. Se obtuvo que la cantidad de gas licuado de petróleo necesaria sería de 1240 L diarios con un gasto de 496 dólares. En relación al aspecto ambiental, fue favorable, ya que se dejarían de emitir 383,8 kg de CO2 y 7,9 kg de SO2 por día; garantizándose una reducción en la cantidad de emisiones a la atmósfera.

  6. Pemantauan Parameter Panel Surya Berbasis Arduino secara Real Time

    Directory of Open Access Journals (Sweden)

    Muhammad Rizal Fachri

    2015-09-01

    Full Text Available Monitoring the output parameters of a solar module is required for assessing its performance under real operating conditions. This paper presents a new technique for monitoring the output parameters i.e. current and voltage of a solar module directly under real operating conditions. In this new monitoring technique, the output parameters of a solar module can be directly processed in real time condition and their results are displayed in a graph. The monitoring system is developed using microprocessor Arduino Atmega 328P and equipped with calibrated current and voltage sensors, a data acquisition system which is integrated directly into an Excel spreadsheet using the PLX-DAQ application program and a memory card for backup. The monitoring system is connected to a computer using a RS232 serial port. The collected data is saved directly into a spreadsheet and plotted in real time. This technique provides an easy access to the collected data for further analysis.

  7. Analisis Eksergi Penyimpanan Panas untuk Sistem Pengering Berenergi Surya

    Directory of Open Access Journals (Sweden)

    Armansyah H. Tambunan

    2006-12-01

    Full Text Available This paper is devoted to discuss the exergy analysis on the utilization of heat storage for a solar drying system. The heat was stroad in the from of sensible heat using pebble bed as the medium. For the analysis , an exergy balance model was developed from the system’s heat balance. The results show that the minimum value of exergy destruction ratio was obtained within two hours after the process was started. The minimum ratio expresses the most effective operation of the stroge system. Upon performing the simulation study, it was found that the number of transfer unit (NTU influen the change in exergy destruction ratio, with anoptimal value could be in the range of 0,5 to 0,8. Within the NTU range, the ratio of exergy destruction was found to be 0,85. It means that only 15% of the exergy gained from the solar collector can be transferred to the heat stroge medium. The other part of the exergy could be transferred to the drying room or destructed during the process. In order to obtain a more comprehensive understanding on the exergy flow of the system, there necessary an exergy analysis on the drying system.

  8. Analisis Eksergi Penyimpanan Panas untuk Sistem Pengering Berenergi Surya

    OpenAIRE

    Armansyah H. Tambunan; Kamaruddin Abdullah; Binsar Nababan

    2006-01-01

    This paper is devoted to discuss the exergy analysis on the utilization of heat storage for a solar drying system. The heat was stroad in the from of sensible heat using pebble bed as the medium. For the analysis , an exergy balance model was developed from the system’s heat balance. The results show that the minimum value of exergy destruction ratio was obtained within two hours after the process was started. The minimum ratio expresses the most effective operation of the stroge system. ...

  9. İntihar olasılığı ve aile işlevselliği arasındaki ilişkide bilişsel esneklik ve belirsizliğe tahammülsüzlük değişkenlerinin aracı rolü

    OpenAIRE

    ÖZTÜRK, Özlem

    2013-01-01

    Bu çalışmada intihar olasılığı ile aile işlevselliği arasındaki ilişkide belirsizliğe tahammülsüzlük ve bilişsel esnekliğin rolü incelenmiştir. Örneklemini 18-25 yaş arası 623 üniversite öğrencisinin oluşturduğu çalışmada, katılımcıların intihar olasılıklarını değerlendirmek amacıyla İntihar Olasılığı Ölçeği (İOÖ), aile işlevselliğini değerlendirmek amacıyla Aile Değerlendirme Ölçeği (ADÖ), bilişsel esnekliklerini değerlendirme amacıyla bilişsel esneklik envanteri (BEE) ve belirsizli...

  10. Öğretmen Güdüsel Desteği Ölçeği Geliştirme Ve Uyarlama Çalışması

    OpenAIRE

    Güvenç, Hülya

    2015-01-01

    Bu çalışmanın amacı öğrencilerin öğretmenlerinin güdüsel desteğine ilişkin algılarını belirlemek amacıyla kullanılabilecek bir ölçme aracı geliştirmektir. Bu amaçla biri ölçek geliştirme biri uyarlama olmak üzere iki ayrı çalışma gerçekleştirilmiştir. Çalışmalara toplam 418 lise öğrencisi ve 215 ortaokul öğrencisi katılmıştır. Analizler sırasında açımlayıcı ve doğrulayıcı faktör analizine başvurulmuş, madde ayırt edicilikleri hesaplanmış, Cronbach Alpha güvenirlik sayısı hesaplanmıştır. Çalış...

  11. Evaluación de las técnicas de atenuación natural, bioventing, bioaumentación y bioaumentación- bioventing, para la biodegradación de diésel en un suelo arenoso, en experimentos en columna

    Directory of Open Access Journals (Sweden)

    Angélica María Muskus Morales

    2013-08-01

    Full Text Available El presente estudio fue desarrollado dentro del convenio de cooperación institucional realizado entre laUniversidad Pontifi cia Bolivariana, Seccional Bucaramanga y el Instituto Colombiano de Petróleos – ICP, con el fi nde dar solución a una problemática que se presenta en las zonas de manejo de hidrocarburos, donde se evidenciansuelos arenosos contaminados con diésel hasta concentraciones del 6% y a una profundidad máxima de 80 cm.Para el desarrollo metodológico se contaminó un suelo artifi cialmente con diésel para evaluar las técnicas deBioventing, Atenuación Natural, Bioaumentación y Bioventing-Bioaumentación, utilizando montajes en columnas.Se defi nieron los parámetros de diseño y seguimiento como dimensiones de las columnas, caudal de entrada,concentración de diésel, oxígeno disuelto y crecimiento bacteriano; para la bioaumentación se inoculó el suelocon un consorcio bacteriano producido por el ICP. Se realizaron los montajes experimentales por triplicado y secontroló el proceso durante cuatro meses. Los resultados obtenidos mostraron que en la técnica de Bioventingse obtuvieron porcentajes de remoción de diésel hasta del 97%. Con la técnica de Bioventing-Bioaumentación sealcanzaron porcentajes de remoción hasta del 75% y con las técnicas de Atenuación Natural y Bioaumentación,los porcentajes de remoción no superaron el 48%. El estudio mostró que el consorcio bacteriano utilizado yevaluado mediante las técnicas de Bioaumentación y Bioventing-Bioaumentación, no potencializó la efi cienciade los procesos de biorremediación del suelo arenoso contaminado con diésel.

  12. İçsel Markalaşma Uygulamalarıyla Markanın Örgüt İçerisinde Tutundurulması: ARKAS Holding Örnek Olayı* ( Promoting Brand Within Organization Via Internal Branding: ARKAS Holding Case Study

    Directory of Open Access Journals (Sweden)

    Aysun KAHRAMAN

    2015-12-01

    Full Text Available İçsel markalaşma; çalışanların, çalıştıkları işletmenin marka vaadini, marka değerini anlaması ve benimsemesi sonucunda, dış müşterilerin de markayı daha kolay benimseyeceğini savunmaktadır. Bu çalışmanın amacı, ülkemiz literatüründe yeterince ele alınmamış olan içsel markalaşma olgusunu teorik temeller ve uygulama aşamaları açısından açıklığa kavuşturmaktır. Çalışmada ilk olarak markalaşmanın önemine ve markalaşma sürecinde çalışanların rollerine değinilmiştir. Daha sonra içsel markalaşma kavramı, içsel markalaşma uygulamalarında kullanılan teknikler ve araçlar teorik olarak incelenmiştir. Çalışmanın uygulama bölümü için bir hizmet işletmesi olan Arkas Holding’in iki yöneticisiyle, Arkas Holding’deki içsel markalaşma uygulamalarıyla ilgili olarak derinlemesine görüşmeler yapılmıştır. Yapılan görüşmeler sonrasında elde edilen bulgular değerlendirildikten sonra Arkas Holding’de içsel markalaşmanın önemi, içsel markalaşma uygulamalarının nasıl gerçekleştiği, bu süreçte dikkat edilmesi gereken unsurlar ve karşılaşılan zorluklar ortaya konulmuştur. Internal branding supports the idea that external customers will internalize the brand more easily if employees understand and adopt the brand promise and brand values of the company which they work for. The aim of this study is to clarify internal branding phenomenon, which which has not been discussed enough in the Turkish literature, in terms of literature and application areas. Firstly the study has discussed the importance of branding process and the role of employees in this process. Then, the concept of internal branding, the technics and the tools whics are used for application of internal branding is examined theoretically. In the application part in-depth interviews were conducted with two managers of Arkas Holding about internal branding activities in Arkas Holding. After

  13. Penggunaan Karbamid Peroksida Sebagai Bahan Pemutih Gigi

    Directory of Open Access Journals (Sweden)

    Endang Suprastiwi

    2015-10-01

    Full Text Available Carbamide peroxide as a whitening agent for teeth is very popular because the use of this agent is easy and inexpensive. There are two kinds of concentrations, i.e. 10%-15% and 35%. The methods are home bleaching and in office bleaching. For home bleaching, the duration of whitening application is 2-6 weeks, each day for 8 hours, whilst for in office bleaching, two hour application will be required. Whitening efficacy might be increased up to 2-5 levels and the color may sustain for 1-3 years, and this treatment could be reapplied. There is an effect on pulp system, but the effect is reversible, i.e. sensitivity which could be treated with fluoridation or application of potassium nitrate. The side effects on gingiva include inflammation which is caused by the buffer and is only temporary. Bleaching is safe to be use and the result will be satisfying if proper procedure is followed.

  14. POTENSI NIRA KELAPA SEBAGAI BAHAN BAKU BIOETANOL

    OpenAIRE

    I Made Anom Sutrisna Wijaya; I Gusti Ketut Arya Arthawan; Anis Novita Sari

    2012-01-01

    The objective of this reseach was to determine the frequency of destilation in production of bioethanol produced from coconut sap, as well as to determine the quality of bioethanol. Three steps were conducted in production of bioethanol : the first step was fermentation of coconut sap in room temperature for two days, the second step was destilation of fermented coconut sap (tuak) at 780C to make the alcohol content ?94%, and the last step was determination of the quality of bioethanol. The r...

  15. Pemanfaatan Kulit Nanas Sebagai Bahan Pembuatan Bioetanol

    OpenAIRE

    Yusra, Istianah

    2012-01-01

    Bioetanol is an alternative technology in surpassing the diminishing of unrenewable fuel. This research was done in June until July 2011 in Agricultural Engineering Laboratory, College of Agriculture, USU, Medan using factorial completely randomized design with two factors, i. e yeast concentration (4%, 6% and 8%) and time of fermentation (2 days, 3 days and 4 days). Parameters measured were alcohol concentration after fermentation, alcohol concentration after distillation, ethanol concentrat...

  16. Electromigration in molten salts and application to isotopic separation of alkaline and alkaline-earth elements; Electromigration en sels fondus et application a la separation des isotopes des elements alcalins et alcalino-terreux

    Energy Technology Data Exchange (ETDEWEB)

    Menes, F. [Commissariat a l' Energie Atomique, Saclay (France). Centre d' Etudes Nucleaires

    1969-07-01

    'enrichissement de l'ordre de 10 sur l'isotope 48 du calcium et de l'ordre de 1,5 sur les isotopes rares du baryum et du strontium. Pour le magnesium, la mise en oeuvre de la methode est un peu plus compliquee par suite de l'entrainement du a la tension de vapeur relativement elevee du sel, obligeant a realiser une chaine d'electrolytes, MgBr{sub 2} - CeBr{sub 3}. On a etudie les problemes que pose la mise en oeuvre de la methode a plus grande echelle. Ce sont essentiellement l'inhibition du fonctionnement reversible de la cathode par la presence de traces d'eau, limitant l'intensite admissible; l'evacuation de la chaleur produite par effet Joule, faute de quoi les gradients thermiques diminuent l'efficacite de la separation; et la corrosion des materiaux par les sels fondus a haute temperature. On a mis en fonctionnement plusieurs cellules pouvant traiter quelques kilogrammes de substance; aucune n'a eu la longevite necessaire pour assurer un enrichissement satisfaisant. La methode est donc actuellement limitee aux productions de l'ordre de quelques grammes. (auteur)

  17. SOME ASPECTS OF COGNITIVE- LINGUISTIC INTERPRETATION OF TURKIC LANGUAGE CONCEPT TÜRK DİLİ KAVRAMININ BİLİŞSEL-LENGÜİSTİK AÇIKLANMASI ÜZERİNE

    Directory of Open Access Journals (Sweden)

    Kamal ABDULLA

    2012-06-01

    Full Text Available In the given article cognitive-linguistic interpretation of Turkic language concept was done according to the Turkic world and culture context and to the Turkic language-conversation borrowings used in the Russian language. From this point of view according to the “TurkicSlavistic” notion, Turkic-Russian language relationships were looked through and some language-conversation borrowings from Turkic into Russian were analysed. According to the text and proverb examples from “Taury Kassandra” by Chingiz Aytmatov. Some textual-linguistic and parameological borrowings used in Russian are appreciated as conceptual-linguistic. Türk dili kavramının bilişsel-lengüistik açıklanması, Türk dünyası ve uygarlığı bağlamına ve Rusça’da kullanılan Türkçe dil-konuşma alıntılarına göre yapılmıştır. Bu bakımdan makalede “Türkslavistik” anlayışına göre Türkçe-Rusça ilişkileri bütün olarak ele alınmış ve Türkçeden Rusçaya geçen dil-konuşma alıntıları tahlil edilmiştir. Şöyle ki; C. Aytmatov’un “Tavrı Kassandra” eserinden alınan metin ve atasözü örneklerine göre Rusçada kullanılan metindilbilimsel ve atasözübilimsel nitelikteki bazı alıntılar kavramsal-lengüistik olarak değerlendirilmiştir.

  18. Evaluación de las técnicas de atenuación natural, bioventing, bioaumentación y bioaumentación- bioventing, para la biodegradación de diésel en un suelo arenoso, en experimentos en columna

    OpenAIRE

    Angélica María Muskus Morales; Claudia Santoyo Muñoz; Luijesmarth Silvia Plata Quintero

    2013-01-01

    El presente estudio fue desarrollado dentro del convenio de cooperación institucional realizado entre laUniversidad Pontifi cia Bolivariana, Seccional Bucaramanga y el Instituto Colombiano de Petróleos – ICP, con el fi nde dar solución a una problemática que se presenta en las zonas de manejo de hidrocarburos, donde se evidenciansuelos arenosos contaminados con diésel hasta concentraciones del 6% y a una profundidad máxima de 80 cm.Para el desarrollo metodológico se contaminó un suelo artifi ...

  19. Efeito da suplementação de cobre e selênio na dieta de novilhos Brangus sobre o desempenho e fermentação ruminal The effects of copper and selenium supplementation in the diet of Brangus steers on performance and rumen fermentation

    Directory of Open Access Journals (Sweden)

    G.R. Del Claro

    2013-02-01

    Full Text Available Vinte e oito bovinos Brangus foram usados para determinar o efeito da suplementação de cobre e selênio no desempenho e na fermentação ruminal. Os animais foram divididos em: 1 C(Controle - sem a suplementação de cobre e selênio; 2 Se - 2mg Se/kg de matéria seca na forma de selenito de sódio; 3 Cu - 40mg Cu/kg de matéria seca na forma de sulfato de cobre; 4 Se/Cu - 2mg Se/kg de matéria seca na forma de selenito de sódio e 40mg Cu/kg de matéria seca na forma de sulfato de cobre. As pesagens dos animais foram feitas em intervalos de 28 dias, após jejum completo de 18 horas. Foram colhidas amostras de líquido ruminal para análises de ácidos graxos voláteis e pH. O ganho de peso diário aumentou com a suplementação de Se (P0,05. Os animais submetidos à suplementação com Cu apresentaram menor pH ruminal quando comparado com a suplementação Se/Cu (P0,05 entre os tratamentos. Apesar do pouco efeito na fermentação ruminal, as suplementações de selênio, cobre e selênio/cobre proporcionaram uma melhor eficiência alimentar.Twenty-eight Brangus cattle were used to determine the effect of copper and selenium supplementation on performance and rumen fermentation. The animals were divided in: 1 (Control - without supplementation of copper and selenium; 2 Se - 2mg Se/kg of dry matter as sodium selenite; 3 Cu - 40mg Cu/kg of dry matter as copper sulphate; 4 Se/Cu - 2mg Se/kg of dry matter as sodium selenite and 40mg Cu/kg of dry matter as copper sulphate. Animal weighing was performed in 28 day intervals, after 18 hours of fasting. Samples of rumen liquid were collected for analysis of volatile fatty acid and pH. The daily weight gain increased with selenium supplementation (P0.05. The animals that received copper supplementation had lower pH rumen compared with selenium/copper supplementation (P0.05 among treatments. Despite the little effect on rumen fermentation, the supplementations of selenium, copper and selenium

  20. Níveis de vitamina E e de selênio para pós-larvas de Macrobrachium amazonicum - DOI: 10.4025/actascianimsci.v26i1.1965 Dietary level of vitamin E and selenium on diets for post larvae of Macrobrachium amazonicum - DOI: 10.4025/actascianimsci.v26i1.1965

    Directory of Open Access Journals (Sweden)

    Alexandra da Silva Pereira

    2004-04-01

    Full Text Available Esta pesquisa teve por objetivo determinar os melhores níveis dietários de vitamina E e de selênio para pós-larvas do camarão amazônico, Macrobrachium amazonicum (Crustacea. Nesse sentido, pós-larvas com peso médio de 280mg e comprimento médio de 20,60mm foram mantidas em 28 aquários de 12L dotados de sistema de recirculação de água e de controle automático de temperatura, submetidas à esquema fatorial 3x2, em um delineamento inteiramente casualizado, com 1 tratamento adicional, totalizando 4 repetições por tratamento. As pós-larvas foram alimentadas com rações purificadas à base de albumina e de gelatina, contendo 3 níveis de vitamina E (100mg/kg, 200mg/kg e 400,00mg/kg, 2 níveis de selênio (0,50mg/kg e 1mg/kg e 1 tratamento adicional (sem suplementação de selênio e de vitamina E. Após 30 dias, avaliou-se o ganho de peso, a conversão alimentar aparente, a taxa de sobrevivência e a concentração de selênio no filé. Observou-se que: 200mg de vitamina E/kg e 0,50mg de selênio/kg proporcionam melhores respostas de ganho de peso e de conversão alimentar aparente; 100mg de vitamina E/kg e 0,50mg de selênio/kg proporcionam melhor taxa de sobrevivência e, 200mg de vitamina E/kg e 1mg de selênio/kg proporcionam maior concentração de selênio no filé. Com base nesses resultados, recomenda-se 200mg de vitamina E/kg e 0,50mg de selênio/kg de ração, na alimentação de pós-larvas de camarão amazônico, de modo a proporcionar melhores resultados quanto ao desempenho produtivo.The objective of this study was to determine the best dietary level of vitamin E and selenium on diets for Amazon prawn, Macrobrachium amazonicum (Crustacea. Thus, post-larvae of 280mg average weight and 20.60mm average length were kept in 28 aquaria (12.00L supplied with water. They were maintained in automatic control of temperature, in a completely randomized factorial experiment 3x2 design, plus an additional treatment, with four

  1. Darüşşifas Where Music Threapy was Practiced During Anatolian Seljuks and Ottomans / Selçuklu ve Osmanlı Darüşşifalarında Müzikle Tedavi

    Directory of Open Access Journals (Sweden)

    Gülşen Erdal

    2013-03-01

    etki günümüzde açıkça bilinmektedir. Bilinen en eski tedavi yöntemlerinden biri olan Müzikle tedavinin geçmişi binlerce yıl öncesine dayanır. Türklerin, müzikle tedavide İbn Sina, Razî, Farabî, Hasan Şuurî ve Gevrekzade Hasan Efendi gibi bilim adamlarının yaptıkları araştırmaların yer aldığı kitaplardan faydalanarak, Selçuklu ve Osmanlılar döneminde, akıl hastalıklarının tedavisine uygun akustikle inşa edilen hastaneler-darüşşifalarda kullanmaları, ilk ciddi müzikle tedavi uygulamaları olarak değerlendirilir. Darüşşifa, Türk ve İslam dünyasında pratiğe ve gözleme dayalı sağlık hizmetleri veren hastaları tedavi eden sağlık ve eğitim kurumlarına verilen isimlerden birisidir. Darüşşifalar Tıp mesleğinin uygulanmasına yönelik özel mimari anlayış içeren yapıları ile de ayrıcalıklı bir yere sahiptir. Türkler Anadolu’ya yerleşmeleri ile birlikte çeşitli imar faaliyetlerine başlamışlardır. Yapılan bu faaliyetler içerisinde kervansaraylar, medreseler ve camilerle birlikte darüşşifalar da bulunmaktadır. Selçuklu ve Osmanlı darüşşifalarında tıbbi konular araştırmalara ve bilimsel esaslara bağlı kalınarak işleniyor, aynı zamanda tıp medreselerinde cerrah yetiştiriliyordu. Yapılan eğitimler dışında tatbiki uygulamaların da yaptırıldığı bilinmektedir. Darrüşşifalar, Anadolu Selçuklu ve Osmanlı medreseleri plan şemasına uygun olarak tasarlanmıştır. Genelde derslerin verildiği ana eyvan ve farklı ihtiyaçlar için düzenlenmiş avlu etrafında yer alan odalardan oluşmaktaydı. Türk sanat tarihi içerisinde sıklıkla karşılaştığımız tıp siteleri aynı zamanda günümüz tıp fakültesi mantığı ile örtüşmektedir. Buralarda tedavi edici sağlık hizmetleri sunulmaktaydı. Müzikle tedavi yapılan darüşşifalardan günümüze ulaşan ve önem teşkil edenler bu çalışmada sanat tarihi ve müziğin iyileştirici gücünün yüzyıllar

  2. Bilişsel duygu düzenleme stratejilerinin ebeveyn kontrolü ile akran ilişkileri ve akran baskısı arasındaki ilişkide aracılık rolünün incelenmesi

    OpenAIRE

    DAŞCI, Esma

    2015-01-01

    Bu araştırmada bilişsel duygu düzenleme stratejilerinin ebeveyn kontrolü ile akran ilişkileri ve akran baskısı arasındaki ilişkideki aracılık rolünün incelenmesi amaçlanmıştır. İlişkisel tarama modeli niteliğindeki araştırmanın çalışma grubunu Ankara ili Çankaya, Mamak ve Yenimahalle ilçelerinde bulunan Milli Eğitim Bakanlığına bağlı 6 farklı lisede öğrenim gören 576 öğrenci oluşturmuştur. Araştırma grubuna “Leuven Algılanan Ana Babalık Ölçeği/Ergen Sürümü”,  “Bilişsel Duygu...

  3. 4. Sınıf Öğrencilerinin Üstbilişsel Okuma Stratejilerini Kullanma Durumları ve Bu Stratejilerle Okuduğunu Anlama Arasındaki İlişki 4th Grade Students' Using Metacognitive Reading Strategies Conditions and between the Relationship Reading Comprehension and Using These Strategies

    Directory of Open Access Journals (Sweden)

    Mustafa BAŞARAN

    2013-09-01

    Full Text Available Aim of this study is to determine that 4th grade students' usingmetacognitive reading strategies conditions and the relationshipbetween reading comprehension rates and using these strategies ratesin this grade. The Research method of this study is relational scan thatis a descriptive method. The universe of the study is 4th grade students,who attend state elementary schools in the center of Kütahya provincein 2012-2013 academic season. The sample of study is 89 4th gradestudents, who were selected from this universe. The study consists offour parts. In the first chapter, Metacognition and metacognitive readingstrategies are discussed. The method of study is explained in the secondchapter. The findings and the comments are available in the thirdsection. In the last chapter, there are the results of the study and thediscussing of results. According to the results of study, 4th gradestudents’ use often before reading, during reading and after readingmetacognitive reading strategies but students use fewer strategies forremembering. The gender of students has no significant effect on usingmetacognitive reading strategies However, the branch has significanteffect on the rate of use metacognitive reading strategies. According tothe results of the research there is not a significant relationshipbetween using metacognitive reading strategies rates andunderstanding. Bu araştırmada 4. sınıf öğrencilerinin üstbilişsel okuma stratejilerini kullanma durumlarının ve bu sınıf seviyesindeki öğrencilerin üstbilişsel okuma stratejilerini kullanma oranı ile okuduğunu anlamaları arasındaki ilişkinin tespiti amaçlanmıştır. Araştırmanın yöntemi, betimsel yöntemlerden, ilişkisel taramadır. Araştırmanın çalışma evreni 2012-2013 eğitim öğretim yılında Kütahya il merkezindeki ilkokullarda öğrenimine devam eden 4. sınıf öğrencileridir. Araştırmanın örneklemini ise bu evrenden rastgele seçilen bir devlet okulunun

  4. PENGUJIAN KANDUNGAN ESDD DAN SIFAT HIDROFOBIK BAHAN ISOLASI RESIN EPOKSI DENGAN BAHAN PENGISI SEKAM PADI

    OpenAIRE

    Syafriyudin

    2010-01-01

    Isolator has an important role for set on distribution network and etc such to prevent a short circuit problems, because main of isolator function is for separate two apparatus with low or high tension. Test in this research is for hydrofobic and ESDD test. The fill materials are sillicone rubber and hull of rice with amount 10% to 40% of test materials weight, the materials in use is blend of DGEBA (Diglycidil Eter of Bisphenol A) as main matter and MPDA (Methaphenylene Diamine) for stringen...

  5. Kecernaan Bahan Kering dan Bahan Organik Eceng Gondok Fermentasi pada Domba Lokal Jantan Lepas Sapih

    OpenAIRE

    Manik, Depristiana

    2015-01-01

    This study aims to analyze the digestibility of dry matter and organic matter fermented water hyacinth with local microorganisms ( MOL ) and Trichoderma on local sheep male weaning. The research was conducted in August to November 2013 using 20 local sheep male weaning. The design used in this study was a completely randomized design with 5 ways and 4 replications . Treatment consists of P0: Concentrate+100% grass, P1: Concentrate+(40% grass+60% water hyacinth fermentation MOL), P2: Concentr...

  6. Karakterisasi Dan Pembuatan Batu Bata Dengan Bahan Dasar Tanah Liat Serta Penambahan Blotong Sebagai Bahan Pengisi

    OpenAIRE

    Khairani, Eva

    2011-01-01

    Telah dilakukan pembuatan batu bata lempung dengan campuran berupa blotong yang dicetak dengan cara pemadatan, pengeringan dan dibakar pada temperatur 300 – 400oC. Setelah umur pengeringan 7 hari, dilakukan pengujian karakteristik sifat mekanik dan fisis benda uji seperti; Kuat tekan, porositas, daya serap air dan susut kering. Batu bata dibuat dengan variasi campuran 0%, 5%, 10%, 20%, 30% blotong terhadap tanah lempung dan dibandingkan hasilnya terhadap batu bata yang diproduksi oleh pabrik ...

  7. Kecernaan Bahan Kering dan Bahan Organik dan Degradabilitas Serat pada Pakan yang Disuplementasi Tanin dan Saponin

    OpenAIRE

    Idha Muthiah Dwi Wahyuni; Anis Muktiani; Marry Christiyanto

    2014-01-01

    (Dry matter and organic matter digestibility and fiber degradability in feed by tannin and saponin supplementation) ABSTRACT. The study was conducted to assess the effect of the addition of tannins, saponin and their combinations on the feed, as defaunation agent in the dry matter and organic matter digestibility and ADF, NDF degradability. The study used an experimental method with a completely randomized design. The treatments were T0 : feed without supplementation; T1: feed supplementat...

  8. Avaliação dos níveis de hiper-homocisteinemia, vitamina E, selênio, cobre, ceruloplasmina e ferritina em pacientes com diagnóstico de acidente vascular cerebral isquêmico Assesment of homocysteine, vitamin E, selenium, copper, ceruloplasmin and ferritin levels in patients with ischemic stroke diagnosis

    Directory of Open Access Journals (Sweden)

    Lillian Harboe-Gonçalves

    2007-02-01

    Full Text Available OBJETIVO: Avaliar níveis sangüíneos de hiper-homocisteinemia, vitamina E, selênio, cobre, ceruloplasmina e ferritina em pacientes com diagnóstico de acidente vascular cerebral isquêmico (AVCI. CASUÍSTICA, MATERIAIS E MÉTODOS: Estudo transversal analítico de 104 pacientes diagnosticados com AVCI e 98 controles. Dosagem de homocisteína e vitamina E feita por cromatografia líquida de alta performance. O selênio foi dosado por tecnologia de espectrometria de massa por plasma indutivamente acoplado; o cobre o foi por colorimetria; a ceruloplasmina, por nefelometria; e a ferritina, por imunoensaio enzimático conjugado à fluorescência (Elfa. Análise estatística feita com testes t de Student e análise de variância. RESULTADOS: Encontrada hiper-homocisteinemia em 43% dos pacientes e 13% dos controles. Os valores obtidos nas dosagens de vitamina E, cobre, ceruloplasmina e ferritina foram significativamente maiores no grupo paciente do que no grupo controle. Quanto ao selênio, a diferença entre os dois grupos não foi significativa. DISCUSSÃO: Níveis de hiper-homocisteinemia foram maiores que os encontrados na literatura, podendo ser conseqüência da genética ou dos hábitos alimentares da população. Os resultados encontrados para vitamina E, selênio, cobre, ceruloplasmina e ferritina coincidem com os de alguns trabalhos publicados, mas o modelo deste estudo não avalia se os níveis de vitamina E e selênio foram alterados pelo AVCI ou por mudanças nos hábitos dos pacientes. A ferritina e a ceruloplasmina podem ser marcadores de AVCI, e não fator causal da sua patogênese. CONCLUSÃO: A hiper-homocisteinemia é mais prevalente nos pacientes diagnosticados com AVCI. Os níveis de vitamina E, cobre, ceruloplasmina e ferritina mais elevados encontrados nos pacientes não podem ser atribuídos à ocorrência de AVCI.OBJECTIVE: To assess blood levels of hyperhomocysteinaemia, vitamin E, selenium, copper, ceruloplasmin and

  9. Peran Sel Punca Di Bidang Kedokteran Gigi

    OpenAIRE

    Sofan, Luki Tantri

    2010-01-01

    Pengetahuan bidang Kedokteran Gigi merupakan salah satu ilmu pengetahuan yang mengalami kemajuan pesat dalam perkembangannya. Salah satu bentuk kemajuan ini dapat dilihat dari telah terlibatnya ilmu biologi molekuler dalam pengembangan teknik perawatan dental baik untuk regenerasi ataupun rekonstruksi jaringan rongga mulut. Teknik perawatan kelainan jaringan rongga mulut akibat trauma atau pembedahan kanker merupakan salah satu perawatan yang membutuhkan biaya cukup tinggi sehingga perlu ...

  10. Aitajaid sel teekonnal pole / Madli Pesti

    Index Scriptorium Estoniae

    Pesti, Madli, 1980-

    2005-01-01

    11. märtsil esietendus teatris NO98 ja Sine Loco (A. Türnpu projekt) koostöös lavastus "Inimese teekond", mille lähtematerjaliks on J. Bunyani religioosne teos "Palveränduri tee". Lavastaja ja kokkupanija A. Türnpu

  11. PENINGKATAN KAPASITAS SEL PADA SISTEM SELULER GSM

    Directory of Open Access Journals (Sweden)

    Alfin Hikmaturokhman

    2012-08-01

    Full Text Available Increasing  cell  capacity  in  GSM  applied  by  several  methods  such  as  Fixed  Channel Allocation (FCA, Channel Sharing, Channel Borrowing and Cell Splitting to solve the massive increasing  of  celluler  users  amount  in  whole  world.  It  necessary  to  calculate  the  number  of subscriber within each cell in certain busy hour based on available channel capacity in order to serve  the  traffic  capacity  in  a  cell.  In  this  work,  we  present  calculations  to  compare  cell capacity  without  increasing  cell  capacity  method  and  cell  capacity  using  increasing  capacity methods.  As  a  programming  tool   we  used  Borland  Delphi  7.  In  addition,  this  simulation software  added  with  comprehensive  explanations,  Erlang  B  Table,  and  graphics  to  make  it easier and more efficient in analyze.

  12. Suplementação dietética com Selênio uplementação e Vitamina E nos parâmetros seminais de caprinos induzidos à insulação escrotal = Effect of diet supplementation with Selenium and Vitamin E on the seminal parameters of goats induced to scrotal insulation

    Directory of Open Access Journals (Sweden)

    Guadalupe de Carvalho Xavier

    2008-01-01

    Full Text Available Avaliou-se o efeito da suplementação alimentar com Selênio e Vitamina E sobre os parâmetros seminais de caprinos submetidos à insulação escrotal (IE. Utilizaramse 12 animais distribuídos, aleatoriamente, em grupos-controle (G1 e Selênio e Vitamina E (G2. Dois meses após o início da suplementação alimentar nos animais do G2, realizou-seIE durante 18 dias. Após este período (IE, a suplementação foi mantida por mais 42 dias (fase pós-insulação escrotal, PIE. Para análise seminal, foram efetuadas seis colheitas de sêmen (antes, durante e após a IE. Não foi observado efeito da suplementação com Selênio e Vitamina E nas características quanti-qualitativas do sêmen. Com exceção do volume seminal, foi observada diferença significativa (p This study evaluated the effect of Selenium and Vitamin E supplementation on the semen parameters of goats induced to scrotal insulation (SI. Twelve animals were used, distributed randomly in twogroups (G1 = Control; G2 = Selenium and Vitamin E. Two months after the start of diet supplementation on G2 animals, it was realized SI was induced during 18 days. After this period (SI, supplementation was maintained during 42 days, corresponding to the postinsulationphase (PSI. For semen analysis, six semen collections were performed (before, during and after SI. There was no effect of Selenium and Vitamin E supplementation on the quanti-qualitative characteristics of the semen. With the exception of semen volume, a significant effect (p < 0.05 was observed between collection days for both groups (G1 and G2, with reduction in motility, vigor, sperm concentration, acrosome and DNA integrity. After 42 days of SI, normal values were observed for motility and sperm vigor, acrosomeand DNA integrity in one animal per group. It can be concluded that the high temperature of the testes of goats subjected to SI alters semen parameters; Selenium and Vitamin E supplementation on goats, in a concentration of

  13. Optimum dose of 2-hydroxyethyl methacrylate based bonding material on pulp cells toxicity

    Directory of Open Access Journals (Sweden)

    Widya Saraswati

    2010-06-01

    Full Text Available Background: 2-hydroxyethyl methacrylate (HEMA, one type of resins commonly used as bonding base material, is commonly used due to its advantageous chemical characteristics. Several preliminary studies indicated that resin is a material capable to induce damage in dentin-pulp complex. It is necessary to perform further investigation related with its biological safety for hard and soft tissues in oral cavity. Purpose: The author performed an in vitro test to find optimum dose of HEMA resin monomer that may induce toxicity in pulp fibroblast cells. Method: The method of this study was experimental laboratory with post test control group design. Primary cell culture was made from dental pulp fibroblast cells, and was given with HEMA resin bonding material in various concentrations (5 µg/ml–2560 µg/ml, and then subjected to toxicity test (MTT assay. Result: HEMA optimum concentration was 320 µg/ml to induce cytotoxicity in pulp fibroblast cells. Conclusion: The used of HEMA - base bonding material with the concentration of 200 µg/ml may induced pulp fibroblas cell toxicity.Latar belakang: Keberhasilan suatu bahan bonding secara klinis tergantung pada kandungan fisik, kimia dan keamanan secara biologis. HEMA (2-hydroxyethyl methacrylate adalah bahan resin yang paling banyak digunakan karena memiliki sifat fisik-kimia yang baik. Beberapa penelitian pendahuluan menyebutkan bahwa resin merupakan bahan yang mampu menyebabkan gangguan pada kompleks dentin pulpa sehingga perlu dilakukan penelitian lebih lanjut menyangkut segi keamanan secara biologis bagi jaringan keras dan jaringan lunak di rongga mulut. Tujuan: Penelitian ini akan menguji secara in vitro (pada kultur sel fibroblas pulpa gigi untuk mengetahui dosis optimal monomer resin HEMA yang dapat menyebabkan toksisitas pada sel fibroblas pulpa. Metode: Metode penelitian ini adalah eksperimental laboratoris dengan rancangan penelitian post test control group design. Kultur sel primer dibuat dari

  14. Mise en évidence d'une séquence de précipitation des sels dans les sols sulfatés acides d'une vallée aménagée de Basse-Casamance (Sénégal)

    OpenAIRE

    Montoroi, Jean-Pierre

    1995-01-01

    Au cours de la sécheresse actuelle en Afrique de l'Ouest, de nombreuses efflorescences salines se sont formées à la surface des sols sulfatés acides de Basse-Casamance, notamment dans les vallées aménagées par un barrage anti-sel. Leur caractérisation minéralogique montre qu'elles sont constituées par une grande variété de sulfates d'aluminium et de fer. Les différentes paragenèses minérales s'ordonnent dans le paysage selon une séquence de précipitation. (Résumé d'auteur)

  15. Implementasi Mikrokontroler Atmega 8535 pada Panel Surya Statis dan Panel Surya Dinamis Berdasarkan Waktu Menggunakan Real Time Clock (RTC) DS1307

    OpenAIRE

    Syahrial, Muhammad

    2015-01-01

    The increase in human population are demanding the renewal of natural resources to meet various needs. For example, the needs of electrical energy that greatly influences the development and technology of a some region. Electrical energy is one of the vital part that should be always exist. For that is needed a new electric energy source that can be replace the source of electrical energy before. This research aims to make a simulation tools of solar power plant or called solar cells. This si...

  16. Avaliação da qualidade protéica de dois formulados em pó, à base de soja enriquecidos com zinco, selênio e magnésio para utilização em nutrição enteral Evaluation of protein quality from two powder formulas, soybean based, enriched with zinc, selenium and magnesium to be used in enteral nutrition

    OpenAIRE

    Josefina Bressan Resende Monteiro; Neuza Maria Brunoro Costa; Elizabete Adriana Esteves; Kélia Henriques Milagres

    2004-01-01

    A partir de extrato solúvel de soja e extrato solúvel de soja desengordurado, foram desenvolvidos dois formulados em pó, os quais foram denominados: FPSA-formulado com extrato solúvel de soja (PSA) e FPS60-formulado com extrato solúvel de soja desengordurado (PS60). Além do PSA e PS60, outros produtos foram utilizados na elaboração dos formulados: clara de ovo desidratada, maltodextrina, óleo de soja, óleo de canola, gordura-de-coco, "mix" de vitaminas e minerais e estabilizante. Zinco, selên...

  17. PENGARUH INFUS BUAH PARE (Momordica charantia L TERHADAP KELENJAR PROSTAT TIKUS PUTIH

    Directory of Open Access Journals (Sweden)

    M. Wien Winarno

    2012-10-01

    Full Text Available Buah pare (Momordica charantia L.. selain dikenal sebagai sayuran juga digunakan sebagai obat tradisional. Beberapa hasil penelitian menyimpulkan bahwa perasan buah pare dapat menurunkan kadar glukosa darah. Sebagai kontrasepsi pria, buah pare terbukti menyebabkan abnormalitas struktur morfologi sperma dan menurunkan kadar testosteron darah. Ekstrak buah pare secara invitro menghambat pertumbuhan sel-sel kanker prostat. Buah pare mengandung momordisin, momordin, asam resinal dan sterol. Berdasarkan efeknya yaitu dapat menurunkan hormon testosteron, dan secara invitro menghambat sel-sel kanker prostat dan adanya kandungan sterol, maka dilakukan penelitian Pengaruh infus buah pare (M. charantia L. terhadap kelenjar prostat tikus putih. Penelitian menggunakan hewan coba tikus putih, galur Wistar dengan bobot badan 180-200 gram. Rancangan penelitian yang digunakan "Rancangan Acak Lengkap". Bahan yang diteliti berupa infus buah pare dengan dosis pemberian 625 mg, 1250 mg, 2500 mg dan 5000 mg/kg bb. Sebagai pembanding digunakan akuades. Bahan diberikan secara oral, satu kali sehari selama 30 hari. Hari ke-31 hewan dibunuh, diambil kelenjar prostatnya untuk dibuat preparat histopatologi. Pengamatan meliputi berat dan ketebalan sel epitel kelenjar prostat. Hasilnya, pemberian infus buah pare pada semua dasis dibandingkan dengan akuades (kontrol berpengaruh sangat nyata (P<0,01 terhadap berat kelenjar prostat. Sementara infus buah pare dosis 2500 mg/kg bb. berpengaruh sangat nyata (P<0,01 terhadap tebal set epitel kelenjar prostat. Dengan demikian dapat disimpulkan bahwa infus buah pare dapat menurunkan berat kelenjar prostat normal dan menipiskan sel epitel dari kelenjar prostat.   Kata kunci : pare, Momordica charantia L., kelenjar prostat

  18. Perancangan Dan Pengujian Distilasi Air Laut Tipe Atap Menggunakan Energi Surya

    OpenAIRE

    Silitonga, Putra Candika

    2010-01-01

    Energi tidak dapat diciptakan danjuga tidak dapt dimusnahkan. Tetapi dapat digunakan dengan sebaik-baiknya. Untuk mengubah energi kalor menjadi energi air, digunakan penukar kalor dengan berbagai macam bentuk dan fungsinya. Pengujian ini mencoba memanfaatkan energi yang diterima bumi untuk menyuling air laut menjadi air bersih yang dapat digunakan oleh masyarakat umum khususnya dibidang kesehatan. Pada pengujian digunakan bak fiber dengan ukuran panjang 1 meter, lebar 1 meter tinggi 1 m...

  19. Rancang Bangun Mesin Pendingin Tenaga Surya Dengan Luas Kolektor 0,25 M2

    OpenAIRE

    fauzi, Andika Restu

    2015-01-01

    Engine cooling solar power is being developed throughout the developing world. in the manufacture of this machine uses the cost is not too large and the materials used does not pollute the environment so safe to use in everyday life. The advantage of using this adsorption cooling machine is due to the adsorption cooling is operated by using the heat of the sun as an energy source. With the use of these energy sources can be produced evaporator temperature is below 8 ° C at the heating tempera...

  20. Pengujian Kemampuan Adsorpsi Dari Adsorben Karbon Aktif Untuk Mesin Pendingin Tenaga Surya

    OpenAIRE

    Sormin, Bonardo

    2015-01-01

    Lately adsorption refrigeration cycle more and more scrutinized by experts as well as eco-friendly and economical use of renewable energy is solar energy. In order for the process of adsorption and desorption adsorption refrigerating machine can run well to note that the ideal number of comparisons between the adsorbent with a refrigerant used. Here to find a comparison the absorbent activated carbon using or not using a bolt. The data can be searched using the adsorption capacity testers. Ad...

  1. Pengujian Kemampuan Adsorpsi Dari Adsorben Alumina Akttif Untuk Mesin Pendingin Tenaga Surya

    OpenAIRE

    Manik, Abdi Zentra Aorna

    2015-01-01

    Lately adsorption refrigeration cycle more and more scrutinized by experts as well as eco-friendly and economical use of renewable energy is solar energy. In order for the process of adsorption and desorption adsorption refrigerating machine can run well to note that the ideal number of comparisons between the adsorbent with a refrigerant used. Here to find a comparison the absorbent activated alumina using or not using a bolt. The data can be searched using the adsorption capacity testers. A...

  2. Safety of Aminophylline for Asthma Therapy in Delta Surya Hospital at Sidoarjo

    Directory of Open Access Journals (Sweden)

    Amelia Lorensia

    2012-12-01

    Full Text Available Aminophylline is common used for treating asthma in Indonesia and has narrow therapeutic index. Despite of its affordable price, data on the safety of using aminophylline is still poorly documented. The aims of this study is to analyze the safety of using aminophylline based on Adverse Drug Reaction (ADR in hospitalized patients. This study used retrospective design by collecting 2-years-data of hospitalized patients. Using purposive sampling methods, samples were collected from patients who received aminophylline for asthma therapy. ADR event were recorded and evaluated based on some literatures. It was evaluated by Naranjo Scale, a common tool to identify the probability of ADR related drug. From 41 patients who used aminophylline for their exacerbation in asthma treatment, there was one suspected incident of ADR events related to hypertension with tachycardia. In general, aminophylline would improve symptoms in hospitalized patients with asthma. This study demonstrates that aminophylline is safe although there was only one suspected incident of ADR which could be recorded during these observations. However, for further research it still requires observation from laboratory tests and communication with patients and other healthcare workers.

  3. PENGARUH TEBAL PLAT DAN JARAK ANTAR PIPA TERHADAP PERFORMANSI KOLEKTOR SURYA PLAT DATAR

    OpenAIRE

    Yoe Kiem San; Philip Kristanto

    2001-01-01

    Flat plate solar collector is an equipment to used for water heater. This collector absorb the radiant energy from the sun and convert it to heat in the tubes collector. Parameters which influence the performance this collector are thickness of the plate absorber and distance between the tubes which called collector fin efficiency. From the research it is found that more and more the thickness of the plate absorber and more and more the small distance between of the tubes collector, more and ...

  4. PERBANDINGAN KONFIGURASI PIPA PARALEL DAN SERPENTINE TERHADAP UNJUK KERJA KOLEKTOR SURYA PLAT DATAR

    OpenAIRE

    Rahardjo Tirtoatmodjo; Ekadewi Anggraini Handoyo

    2000-01-01

    The pipes used to circulate water in a solar collector usually has 'parallel' configuration. The water would absorb more solar energy if it flows slower in the pipes. It could be accomplished by using 'serpentine' configuration. A research on a 'parallel' collector and a 'serpentine' collector was carried on the same time, which were 7 days for one cover glass and the next 7 days for two cover glasses. From the research, it is found that if the water stored in a reservoir tank is to be used i...

  5. PENGEMBANGAN SISTEM INFORMASI AKUNTANSI PT. SURYA WARFA KHARISMA STUDI KASUS: PENJULAN, PIUTANG, DAN PENERIMAAN KAS

    Directory of Open Access Journals (Sweden)

    Suparto Darudiato

    2011-05-01

    Full Text Available To increase sales, the management and sales department requires accurate, relevant and up-to-date information to support its function. Currently the amount of outstanding accounts receivables becomes one of the obstacles. So, credit limits criteria are applied as one of the effort to emphasise the outstanding receivables. Surely it will have an impact on increasing the effectiveness and efficiency of operations and ultimately will enhance the competitiveness. This research was done in three stages, data collection, analyzing the system requirements of current system to synergy with companys target, and the results of needs analysis are developed into a new accounting information system with object-oriented approach and UML diagrams.

  6. DISAIN TEKNOLOGI SURYA SEBAGAI "FORM-GIVER" PADA ARSITEKTUR Implementasi Bangunan Perumahan di Indonesia

    OpenAIRE

    Jimmy Priatman

    2001-01-01

    As a country lies within the equatorial belt, Indonesia receives abundant incoming solar radiation (insolation) throughout the year. Although the climate has high humidity due to its existence as archipelagowith high vapour content of the atmosphere, the radiation reaching the building (direct or diffuse but strong) enables its widespread use for cooling and heating of the building (in some places) as well as domestic water heating. The potency is not only as a energy source, but also as an o...

  7. RANCANG BANGUN KONVERSI ENERGI SURYA MENJADI ENERGI LISTRIK DENGAN MODEL ELEVATED SOLAR TOWER

    Directory of Open Access Journals (Sweden)

    Zainul Hasan, Erika Rani

    2012-05-01

    31.600Lux, 43 300 Lux, and 56,000 Lux. Dari hasil penelitian tersebut menunjukkan bahwa efisiensi panas pada kolektor tidak konstan. Efisiensi kolektor tertinggi mencapai 83,92% sedangkan terendah mencapai 22,55% dengan rata-rata sebesar 57%. Dan efisiensi sistem dari alat konversi tersebut tertinggi mencapai 0,01% sedangkan terendah mencapai 0,0022% dengan rata-rata efisiensi sebesar 0,0053%. Adapun daya listrik yang dihasilkan mencapai 72,469 Kata Kunci : Konversi Energi, Elevated Solar Tower, Efisiensi Kolektor

  8. Uji Lama Pengeringan dan Tebal Tumpukan Pada Pengeringan Kentang Dengan Alat Pengering Surya Tipe Rak

    OpenAIRE

    Marpaung, Hendra Samuel

    2015-01-01

    HENDRA SAMUEL MARPAUNG: The Effect of Drying Time and Heap Thickness on Drying of Sweet Potatoes Using Tray Type Solar Dryer, supervised by AINUN ROHANAH and RISWANTI SIGALINGGING. Drying of sweet potatoes in tray tipe solar dryer to make sweet potato flour can be a solution of food problem in Indonesia as the productivity of sweet potatoes is very high and can be made into various of type carbohydrate source of food to substitute rice and grist, and also can reduce fuel consumption. The r...

  9. PRA PERANCANGAN WATERBUS DENGAN PENGGERAK MOTOR LISTRIK BERTENAGA SURYA DI BANJIR KANAL BARAT JAKARTA

    Directory of Open Access Journals (Sweden)

    Untung Budiarto

    2012-07-01

    Full Text Available The problems of traffic jams and the issues of energy problems in Jakarta have been generated an innovation and an alternative solution in public transportation development which can reducing these problems that using the renewable energy Referring to the condition and these problems, the concept must be done within pre-design of waterbus which equipped with a solar panel system engine. The using of solar system as an energy resource on the pre design of the ship must be suitable on the water condition, the selection of the solar panel, 3 dimensional with sail routes and analysis calculation when the ship sailing The research is aimed to produce main dimensional of the ship which LOA = 12,00 m, LWL = 11,47 m, Bm = 4,34 m. This ship is using two outboard electrical motors which producing 2 KW of power, 15,954 watt of battery and 52,12 m2 of solar panel with monocrystaline type with 5,520 watt of power which defined from speed of the ship at 5,25 knot with 0,4 KN resistance

  10. Rancang Bangun Kotak Pendingin Yang Menggunakan Elemen Pendingin Termoelektrik Dengan Sumber Energi Surya

    OpenAIRE

    Simon, Wilsen

    2015-01-01

    In the refrigeration and air-conditioning system, thermoelectric cooling or heating technology have recently been recognized technology. Thermoelectric is a primary alternative source in energy needs. Cooling box is a cooling device that uses thermoelectric cooling system. The purpose of this tcooling box design is to design the efficient thermoelectric cooling box used by beverage merchant compare with ice cube cooling box, and other components along with the durability of cooling box. Desig...

  11. Rancang Bangun Alat Pengaduk Sabun Cair Bahan Baku Minyak Jelantah

    OpenAIRE

    Al Hakim, Muhammad Imam

    2015-01-01

    The process in making liquid soap from used cooking oil is an interesting thing to know. This research was held to design, construct, test, and analyze economic value of liquid soap stirrer made from used cooking oil. The parameter observed were water content, free fatty acid (FFA), alcohol insoluble part, effective capacity, yield, and economic analysis. Based on this research, it was summerized that effective capacity of this equipment was 20,2 l/hr. Yield percentage was 97,8%. Basic cos...

  12. UJI SITOTOKSISITAS BAHAN CYANOACRYLATE VENEER DENGAN MTT ASSAY

    Directory of Open Access Journals (Sweden)

    Elly Munadziroh

    2015-09-01

    Full Text Available The use of acrylic resin restoration basen on methyl methacrylate material in the dentistry, has already been replaced by composite because of certain poor characteristics. Recently, the restoration materials of methyl methacrylate have been re-developed, and made commercially available with cyanoacrylates added. The objective of this study was to investigate the cytotoxic effects of cyanoacrylate veneer materials by 3-(3,4-dimethylthyazol-2yl-2,5-diphenyl retrazolium biomide (MTT assay methods. Cyanoacrylate veneer specimens were immersed in eppendorf microtubes with cell culture media for 1, 12, 24 or 48 hour. Culture media were immersed and used to investigate the cytotoxic effect to BHK 21 cell lines by MTT assay method. The density of optic formazan was live indicate a cell. All data were statistically analyzed by one-way ANOVA and HSD Tukey. The results show that the cytotoxic effects between the five immersion were similar but higher than control cell. In conclusion Immersion in cyanoacrylate veneer has a cytotoxic effect to BHK 21 cell lines. The lowest percentage of cells a live after immersion was 86,95%.

  13. PENINGKATAN PRODUKSI DAN KECERNAAN BAHAN KERING ALFALFA DENGAN PEMUPUKAN FOSFAT

    Directory of Open Access Journals (Sweden)

    - Sunarni

    2014-06-01

    Full Text Available Alfalfa (Medicago    sativa    L. as one of legume forage crops for ruminant livestock is very sensitive to the phosphorus deficiency. Phosphorus fertilizers have been used widely to overcome those problem. However, the high cost of superphosphate (SP is now focusing attention on cheaper rock phosphate (RP fertilizer. A field experiment was conducted on a latosolic soil (low pH, and low available Bray II extractable P. The objective of the research is to evaluate the effect of phosphorus fertilizer from difference sources on dry matter production, and in    vitro dry matter digestibility of alfalfa. Completely randomized block design with 7 treatments in 3 replicates was used in this field experiment. The treatments were T0 (control, T1 (SP, 100 kg P2O5/ha, T2 (SP, 200 kg P2O5/ha, T3 (SP, 300 kg P2O5/ha, T4 (RP, 100 kg P2O5/ha, T5 (RP, 200 kg P2O5/ha, T6 (RP, 300 kg P2O5/ha. Size of each plot was 2 m x 2 m, and fertilized with P fertilizer (SP, RP according to the assigned treatment. All plot received basal fertilizer of urea (50 kg N/ha, KCl (100 kg K2O/ha and poultry manure (2 ton/ha. Medicago    sativa was defoliated on 12 weeks after planting and analyzed for dry matter (DM production and in    vitro DM digestibility. Result showed that DM production significantly influenced by the treatments. Superphosphate fertilization resulted DM production significantly higher compared to control and RP, except on RP 300 kg P2O5/ha was non-significant difference. In    vitro dry matter digestibility (IVDMD of alfalfa was not affected by the treatment. There was non-significant difference in IVDMD between the treatments. Therefore, RP (300 kg P2O5/ha could replace SP to increased DM production and not affected for IVDMD of Medicago    sativa in acid latosolic soil.

  14. POTENSI LICHEN SEBAGAI SUMBER BAHAN OBAT: SUATU KAJIAN PUSTAKA

    Directory of Open Access Journals (Sweden)

    ERIS SEPTIANA

    2011-06-01

    Full Text Available Lichen is a plant with many benefits. Its abundant existence in an area may indicate that air pollution levels are still low. Besides as indicator of air quality, lichen is also used as traditional medicine. Until present time, application of lichens for arthritis, constipation, chemotherapy, external wound, microbial infection, worm and infestation are still done in some countries. It is due to active chemical compounds contain in lichen that has activities as antibacterial, antifungal, antiviral, antitumor, anticancer, antioxidant, anti-inflammatory, antiprotozoa, analgesic and antipyretic, and anthelmintic. With its potential and efforts to provide sustainable materials, lichen has good prospect to be developed become modern medicine.

  15. Pembuatan Bioetanol dengan Bahan Baku Kimpul (Xanthosoma sagittifolium)

    OpenAIRE

    Karo-Karo, Joi Saputera

    2011-01-01

    Bioetanol is an alternative technology in surpassing the diminishing of unrenewable fuel. This research was done in March untill May 2011 in Agricultural Engineering Laboratory, College of Agriculture, USU, Medan using factorial completely randomized design with two factors, i. l yeast concentration (3%, 5% and 7%) and time of fermentation (2 days, 3 days and 4 days). Parameters measured were alcohol concentration after fermentation, alcohol concentration after destilation, etanol concentrati...

  16. MENDESAIN BAHAN AJAR BAHASA INDONESIA UNTUK TUJUAN AKADEMIS

    OpenAIRE

    Widjono Hs.

    2008-01-01

    Article on how to design Indonesian language course material for academic purposes discusses some aspects necessary to be understood in designing the materials used by students at university level. Understanding of language essence, academic competence, appropriate course materials, and effective learning process covering the three stages of accountability model according to Moore, and the seven textuality criteria according to Rankema, is ablsolutely needed to be able to desig...

  17. Kualitas Kompos dari Berbagai Kombinasi Bahan Baku Limbah Organik

    Directory of Open Access Journals (Sweden)

    TATI BUDI KUSMIYARTI

    2015-09-01

    Full Text Available The Quality of Compost on Various Combinations of Organic Waste Raw Materials Evaluation of compost stability prior to its use is essential for the recycling of organic waste in agricultural soils. During composting, most of the biodegradable organic compound are broken down and a portion of the remaining organic material is converted into humic-like substances, with production of a chemically stabilized composted material. This experiment aimed to monitor the changes in physicochemical characteristics during composting of three kinds compost heap and to define parameters suitable for evaluating the stability of compost. The experiment were conducted from Mei to October 2011 and consisted of three treatments with six replicates for each treatment. Compost pile temperature,the pH, that reflected the initiation and stabilization of the compost, were measured during the composting process. The carbon organic material content, carbon and nitrogen content, the carbon to nitrogen ratio, organoleptic characteristics, and K2O, P2O5, Mg, Ca content were measured to evaluate the quality of the physicochemical properties of the compost. Compost toxicity level had evaluated using Germination Index. The result showed that the quality of compost from all treatments that were evaluated in this experiment meet the standard quality of SNI 2004.

  18. Perkembangan Proses Pembuatan Biodiesel sebagai Bahan Bakar Nabati (BBN

    Directory of Open Access Journals (Sweden)

    Joelianingsih

    2006-12-01

    Full Text Available As energy dernands increase and fossil fuel reservas are limited, research is directed towards alternative renewable fluls. A potential diesel fuel substitusi is biodiesel, obtained from fatty acids methyl esters (FAME and produced by the transesterfication reaction of triglyceride or free fatty acid (FFA of vegetable oils with short-chain alcohol, mainly methanol. Most of the currently of alcohol. Although the removal of the excess alcohol can be easily achieved by distillation, however the removal of catlyst and the by-product formed from its reaction with the reactants is complicated while several methode for glycerol purification have been reported. The disadvantages resulting from the use of a catalyst and itsremoval from theproducts can beeliminated if a non-catalytic reaction of the vegetable oils with alcohol can be realized and a simpler and cheaper process can be developed.indonesia has the opportunity to expand oil palm and other plantations such as jatropha curcas (jarak pagarin order to provide sufficient amount of crude oil for development of biodiesel industry.

  19. Perkembangan Proses Pembuatan Biodiesel sebagai Bahan Bakar Nabati (BBN)

    OpenAIRE

    Joelianingsih; Armansyah H. Tambunan; Hirosi NABETANI; Yasuyuki Sagara; Kamaruddin Abdullah

    2006-01-01

    As energy dernands increase and fossil fuel reservas are limited, research is directed towards alternative renewable fluls. A potential diesel fuel substitusi is biodiesel, obtained from fatty acids methyl esters (FAME) and produced by the transesterfication reaction of triglyceride or free fatty acid (FFA) of vegetable oils with short-chain alcohol, mainly methanol. Most of the currently of alcohol. Although the removal of the excess alcohol can be easily achieved by distillation, however th...

  20. Pemanfaatan Polistirena Bekas Sebagai Bahan Aditif Dalam Pembuatan Aspal Polimer

    OpenAIRE

    Harmawan, Tisna

    2011-01-01

    The use of polystyrene used as additives in the manufacture of asphalt polymer has been carried out. Polymer Asphalt was became 9 kinds of formula by variation of polystyrene to asphalt were 40:60; 35:65; 30:70; 25:75; 20:80; 15:85; 10:90; 5:95 and 0:100 (w/w) in 100 gram, addition soft sand 300 gram, DCP 1 phr, DVB 1 phr. The mechanical properties of polymer asphalt such as compressive strength and water absorption. The result showed that the optimum compound was polystyrene and asphalt with...

  1. EFEKTIVITAS NIRA AREN SEBAGAI BAHAN PENGEMBANG ADONAN ROTI

    OpenAIRE

    Mody Lempang; Albert D. Mangopang

    2013-01-01

    Fermentation is a natural process that happen in fresh-sweet sap of aren trees (Arenga pinnata Merr.), because many kinds of microorganism stay and life in this substance e.g. bakteria (Acetobacter acetic) and yeast (Saccharomyces tuac). Species of yeast from genus of Saccharomyses, e.g. Saccharomyses serivisae is wellknown as microorganism that can ferment sugar (glucose) into alchohol and CO2. This natural process as well happen in aren sap, so that this substance potencially using as a swo...

  2. EFEKTIVITAS NIRA AREN SEBAGAI BAHAN PENGEMBANG ADONAN ROTI

    Directory of Open Access Journals (Sweden)

    Mody Lempang

    2013-12-01

    Full Text Available Fermentation is a natural process that happen in fresh-sweet sap of aren trees (Arenga pinnata Merr., because many kinds of microorganism stay and life in this substance e.g. bakteria (Acetobacter acetic and yeast (Saccharomyces tuac. Species of yeast from genus of Saccharomyses, e.g. Saccharomyses serivisae is wellknown as microorganism that can ferment sugar (glucose into alchohol and CO2. This natural process as well happen in aren sap, so that this substance potencially using as a swollen agent of bread or cake dough. This research objective is to recognize the effectiveness of aren sap as a swollen agent of bread dough. Fermentation duration of bread dough was one hour by using swollen agent of fresh, 10 hours old and 20 hours old of aren sap. Daily yield of sap tapped from aren trees in Maros district, South Sulawesi province was 7 litre (4-5 litre collected in the morning and 2-3 litre colected in the afternoon. Aren sap containt some of nutritions e.g. carbohydrate, protein, fat, vitamin C and mineral. Sweet taste of aren sap caused by it’s charbohydrate content of 11.18%. The effectiveness of aren sap as a swollen agent of bread dough is lower than instant (commercial yeast. The older of aren sap the lower of it’s effectiveness as a swollen agent of dough and kuality of bread yield.    Keywords : Sap, Arenga pinnata, swollen agent, bread dough

  3. BIOBRIKET ENCENG GONDOK (EICHHORNIA CRASSIPES SEBAGAI BAHAN BAKAR ENERGI TERBARUKAN

    Directory of Open Access Journals (Sweden)

    Eko Ariyanto

    2014-05-01

    Full Text Available Menipisnya cadangan energi fosil sebagai akibat dari meningkatnya pertumbuhan penduduk dan sektor industri. Biomassa dapat dianggap sebagai pilihan terbaik untuk energy alternatif terbarukan. Tujuan dari penelitian ini adalah untuk mengamati kemungkinan eceng gondok (Eichhornia crassipes untuk diolah menjadi bio-briket. Penelitian briket dilakukan dengan menggunakan tepung tapioka dan lem kayu sebagai perekat. Dengan persentase perekat adalah 4%, 6%, 8%, 10%, dan 12%. Bio-briket yang dihasilkan diamati kadar air evalueted, kadar abu dan nilai kalor. Dari hasil penelitian menunjukkan bahwa nilai kadar air dan kadar abu meningkat dengan meningkatnya presentasi perekat pada bio-briket. Namun, nilai kalor mencapai titik maksimum 10% dan 8% untuk masing-masing penambahan tapioka strach dan lem kayu perekat.

  4. SISTEM INFORMASI AKUNTANSI PEMBELIAN BAHAN BAKU UNTUK PROYEK

    Directory of Open Access Journals (Sweden)

    Lianawati Christian

    2012-05-01

    improving application design that features document numbering, document filing, and reports. The new designed accounting information system of raw material purchases of the construction company can generate a report needed timely, completely and accurately, so that it can be used by the management in decision-making process.

  5. Pengembangan Bahan Ajar Pengajaran Mikro Matematika Kelas SBI

    Directory of Open Access Journals (Sweden)

    Imam Sujadi

    2010-06-01

    Full Text Available This research aims at producing printed teaching materials for micro teaching program which can be used as one of learning resources for students of international standard school  in  Math Department. The main activity in this research is developing teaching material which is designed to support the achievement of teaching curricular i.e the students are capable of teaching math in international program. This covers two stages- exploration and developing draft model. In the first stage, the researchers performed related literatures reviews and collected varied information related to the problems faced by the students/ teachers in conducting teaching activities in international program. Based on the data gathered, the draft model was developed. Results of the research show that the English competence of the students in math department needs to be enhanced. Courses related to micro teaching program for international school should be rigorously planned, syllabus and its implementation in teaching learning process needs to be revised. In the micro teaching program for international standard school, students have to practice activities dealing with planning classroom management, using media, and developing lesson plan in English. The provision of teaching and learning resources for micro teaching program of  international standard school in math department is far from sufficient level and needs improvement. Teaching materials developed cover how to start the lessons, structure the lesson, use learning aids/media, use textbooks, respond to students’ performance, and administer the exams. Developing varieties of teaching materials and their periodical revision are badly needed. Key words : English competence, micro teaching, teaching materials.

  6. ANALISA KEANDALAN SISTEM BAHAN BAKAR MOTOR INDUK PADA KM. LEUSER

    Directory of Open Access Journals (Sweden)

    Eko Sasmito Hadi

    2012-04-01

    Full Text Available Fuel oil system is one of the vital main engine supporting systems of MV. Leuser because this system is directly influence the main engine performance. The failure of fuel system should be the main engine shut down. The bigger affect was the ship could not be operated so the financial lost would be occurred. The aim of the research is an analysis the fuel system by approximation on reliability based. An analysis of the system was using qualitative and quantitative approximation. Qualitative analysis could be achieved by the Failure Mode and Effect Analysis (FMEA and the Fault Tree Analysis (FTA. The quantitative analysis could be achieved by the Monte Carlo simulation. The resulted of the research, severity components such as filter, separator, transfer pump and booster pump was obtained by the severity classification and failure probability. The simulation would be achieved the value availability at 0.97 and the value of MTTFF (Mean Time to First Failure is 2423.8363 hours. The simulation used some scenarios, the system availability would be more decrease if there were more stand by components occur the failure in the one of the components at 0,893.

  7. Pengaruh Molases Pada Amoniasi Jerami Padi Menggunakan Urea Terhadap Kecernaan Bahan Kering dan Bahan Organik In Vitro

    OpenAIRE

    Muhamad Bata

    2008-01-01

    The effect of molasses on ammoniated straw by using urea on dry and organic matter digestibility as in vitro ABSTRACT. Aimed of this research was to find out the optimal level of molasses addition to improve quality, dry matter and organic matter digestibility of rice straw ammonization process. Materials used were rumen fluid of fistula cattle, grind of rice straw, water, urea and molasses. Research designed used Completely Randomized Design (CRD). As treatments were R0: rice straw 1000 ...

  8. Pemanfaatan Pelepah Daun Kelapa Sawit Amoniasi Terhadap Kecernaan Bahan Kering Dan Bahan Organik Pada Sapi Brahman Cross

    OpenAIRE

    Sipayung, Sumual

    2012-01-01

    The goal of experiment is to observe the level utilization of ammoniated oil palm frond on dry matter and organic digestibility weaning Brahman Cross. The research conducted in Serba Jadi Farm Group in Serba Jadi Street, Street 1, Marelan Raya, Medan City. Feed and digestibility analysis conducted Animal Nutrien of Feed Science Laboratory, Department of Animal Husbandry, Faculty of Agriculture, University of Sumatera Utara, Jl. Prof. A. Sofyan No. 3. Medan. The experiment lasted from July 2...

  9. The effect of systematic education on learners’ epistemological beliefs, learning approaches, metacognitive awareness and academic achievement Dizgeli eğitim modelinin öğrenenlerin epistemolojik inanç, öğrenme yaklaşımları, üstbilişsel farkındalık ve akademik başarılarına etkisi

    Directory of Open Access Journals (Sweden)

    Şule Fırat Durdukoca

    2016-07-01

    Full Text Available This study aims to analyze the effect of systematic education on epistemological beliefs, educational approaches, metacognitive awareness and academic achievement of learners. The non-equivalent group pretest-posttest model, which is one of the quasi-experimental designs, was used in this study. The research sample included 102 prospective teachers enrolled in the Adiyaman University Faculty of Education, Primary School Classroom Teaching Program during the 2012-2013 academic year. The programs, prepared on the basis of systematic and traditional educational models, functioned as the experimental variables. The experiment was carried out with the experimental group (n=51 and the control group (n=51 in the 14-week (three course hours a week "Teaching Principles and Methods" course. Research data was collected using the Epistemological Belief Scale developed by Schommer and translated into Turkish by Deryakulu and Buyukozturk (2002, who also examined its validity and reliability, Teaching Approaches Scale developed by the researcher, the Metacognitive Awareness Scale and the Academic Achievement Test.  The data collected for the study were analyzed using dependent and independent groups t-tests and Cohen's d value calculations. The research found that prospective teachers in the experimental group for which the systematic educational model was implemented did not believe that "learning depends on ability" and that "there exists only one truth" as strongly as those in the control group for which the traditional educational model was implemented. Moreover, prospective teachers in the experimental group had higher levels of "deep learning approach" as well as higher levels of metacognitive awareness and academic achievement.   Özet Bu araştırmada dizgeli eğitim modelinin öğrenenlerin epistemolojik inanç, öğrenme yaklaşımları, üstbilişsel farkındalık ve akademik başarılarına etkisini incelemek amaçlanmıştır. Ara

  10. Bakü İçeri Şeher’de Selçuklular Döneminden Kalma İki Mescit: Sınıg Gala (Muhammed (1078 Ve Aşur (1169 Mescitleri (Two Masjid Around Baku İçeri Şeher Remaining From Seljuks: Sinig Gala (Muhammed (1078 And Ashur (1169 Masjids

    Directory of Open Access Journals (Sweden)

    Ramazan UYKUR

    2012-12-01

    small scaled buildings,they don't raise anything new, they are both important in order toclosely trail the architectural line of the period. Bakü’de bugün İçeri Şeher adıyla anılan eski Bakü yerleşiminde küçük ölçeklerde inşa edilmiş çok sayıda mescit bulunmaktadır. Bu makalede Selçuklular’ın Anadolu dışında Azerbaycan Bakü’de bıraktığı maddi kültür izlerinden en erken tarihli iki örnek ele alınmıştır. Çalışmada Türk dünyasında az bilinen bu iki eserin tarih, bani, plân, mimari ve bezeme gibi yönleriyle ayrıntılı biçimde ele alınması amaç edinilmiştir. Bu sebeple Bakü ve çevresindeki yapılarda: gerekli ölçümler, teknik çizimler ve fotoğraflama işlemleri yapılmıştır. Bunun ardından Bakü Berpa Arşivi’nde, Ahundov Kütüphanesi’nde ve Türkiye kütüphanelerinde kaynak araştırmaları ile çalışma tamamlanmıştır1. Türkler Anadolu’yu iskân edinmeleri ile başlattıkları süreçte elde ettikleri siyasi/askeri başarılarının yanında; belleklerinde getirdikleri estetik hissi, mimari anlayışı ve sanat biçimlerini de yeni yurtlarında uygulamışlardır. Bu hareketlilik boyunca geçtikleri güzergahlarda meydana getirdikleri kentlerde bıraktıkları izlerden, Anadolu öncesindeki kültürel mirasın örneklerini bulmak mümkündür.Her iki yapının da Selçuklular’dan günümüze ulaşabilmiş en erken tarihli iki eser olması Türk mimarisindeki gelişimin izlenmesi bakımından önemlidir. Selçuklular’ın Bakü’ye gelmesinden sonra inşa edilen ilk yapı olan Sınıg Gala Mescidi statik problemleri olan, sert kaba görüntülü ve yapıdan bağımsız büyük minaresiyle dikkat çekmektedir. Aşur Mescidi ise, çift katlı cephe düzenlemesi ve harimi bölen bezemeli destek kemeriyle az daha gelişmiş mimari arayışın bir ürünüdür. Ancak her iki kübik yapıda göze çarpan kusur; ağır, basık/karanlık başarısız bir mekan uygulamasıdır. Sonuç olarak, k

  11. Explaining destination choices based upon recreational opportunities through ıntrinsic and extrinsic travel motivationsRekreasyonel olanaklara dayalı yapılan destinasyon tercihlerinin içsel ve dışsal seyahat motivasyonlarıyla açıklanması

    Directory of Open Access Journals (Sweden)

    Ali Selman Özdemir

    2016-07-01

    ı, rekreasyonel olanaklara dayalı yapılan destinasyon tercihlerinin motivasyonel ve demografik faktörler yoluyla açıklanmasıdır. Örneklem grubunu Ankara ilinde farklı üniversitelerde öğrenim gören 700 öğrenci oluşturmaktadır. Araştırmada veri toplama aracı olarak araştırmacı tarafından geliştirilen ve geçerlik güvenirliği yapılan “Destinasyon Tercihinde Rekreasyonel Aktiviteler Ölçeği” (DTRAÖ, “İçsel Seyahat Motivasyonları Ölçeği” (İSMÖ ve “Dışsal Seyahat Motivasyonları Ölçeği” (DSMÖ kullanılmıştır. Verilerin analizinde “Hiyerarşik Çoklu Doğrusal Regresyon Analizi” ve “Çok Değişkenli ANOVA” analizleri kullanılmıştır. Araştırma sonuçları, destinasyon tercihi yaparken rekreasyonel aktivitelere önem verilmesinin içsel ve dışsal seyahat motivasyonları yoluyla açıklanabildiğini göstermektedir. Destinasyon tercihinde rekreasyonel aktivitelere verilen önemin açıklanmasında içsel seyahat motivasyonlarının baskın etken olduğu görülmüştür. Anlamlılık düzeyine göre sırasıyla “hareket”, “görgü-keşif”, “ziyaret” ve “uzaklaşma” motivasyonları yüksek olan öğrenciler destinasyon tercihinde rekreasyonel aktivitelere daha fazla önem vermektedir. Dışsal seyahat motivasyonları bu anlamda ikincil önem arz etmektedir. Buna göre “kültürel zenginlik”, “doğal zenginlik” ve “popülarite” motivasyonları anlamlı düzeyde önemlidir. Araştırmada elde edilen diğer sonuçlar; kadın öğrencilerin erkek öğrencilere, devlet üniversitesi öğrencilerinin vakıf üniversitesi öğrencilerine göre destinasyon tercihinde rekreasyonel aktivitelere daha fazla önem verdiği görülmüştür.

  12. Biyoloji Öğretmen Adaylarının “Bakteri” Konusundaki Bilişsel Yapılarının Ve Alternatif Kavramlarının Belirlenmesi Determining Biology Student Teachers’ Cognitive Structure And Alternative Concepts On The Concept Of “Bacteria”

    Directory of Open Access Journals (Sweden)

    Hakan KURT

    2013-09-01

    ; Mills, Shaw, Van Horne, Zhang ve Boughman, 2008. Bu yaklaşıma göre önceki deneyimlerle yapılan ilişkilendirmeler nedeniyle zihindeki mevcut bilişsel yapılar bireylerin yeni olayları algılamalarını ve yeni oluşturacakları bilişsel yapıları etkilemektedir. Zayıf bir bilişsel yapının, yeni bilgilerin zihinde yapılandırılma sürecini olumsuz etkilemesi ve böylece yeni bilginin anlamlı olarak yapılanamamasını olumsuz etkilemesi söz konusu olabilmektedir (Tsai ve Huang 2002; Vosniadou, Ioannides, Dimitrakopoulou ve Papademetriou, 2001.Bu kapsamda araştırmacılar öğrencilerin sadece sahip oldukları bilgileri değil; öğrencilerin sahip oldukları farklı bilgi ve kavramlar arasındaki ilişkilerini ve bilişsel yapılarını ölçen tekniklere yönelmişlerdir (Vance, Miller ve Hand, 1995. Bahar (2003, bu stratejiler, kelime ilişkilendirme, yapılandırılmış grid, dallanmış ağaç, kavram haritaları, kavramsal değişim metinleri, analoji, tahmin-gözlem-açıklama şeklinde sıralanabilir. Öğrencilerin bilişsel yapısını inceleyen bu tekniklerden en genel ve en eski olanı, aynı zamanda bu araştırmada da kullanılmış olan teknik kelime ilişkilendirme tekniğidir (Bahar, Johnstone ve Sutcliffe, 1999; Hovardas ve Korfiatis, 2006; Özatlı ve Bahar, 2010; White ve Gunstone, 2000. Bu çalışmanın amacı biyoloji öğretmen adaylarının “bakteri” kavramı konusundaki bilişsel yapılarını incelemektir. Konuyla ilgili literatür taramasında bağımsız kelime ilişkilendirme testi ve çizme-yazma tekniğinin birlikte kullanılarak biyoloji öğretmen adaylarının bakteriyle ilgili kavramsal yapılarını araştıran herhangi bir çalışmaya rastlanmamıştır. Bu çalışmada nitel araştırma yöntemi kullanılmıştır (Yıldırım ve Şimşek, 2006. Veriler toplam 44 öğretmen adayının katılımıyla toplanmıştır. Verilerin toplanmasında bağımsız kelime ilişkilendirmetesti ve çizme-yazma tekni

  13. The influence of sport education model on middle school students during extracurricular football studies on cognitive- psychomotor and game performance levels1 İlköğretim II. kademe ders dışı futbol çalışmasında uygulanan spor eğitimi modelinin öğrencilerin bilişsel, psikomotor ve oyun performansı erişi düzeylerine etkisi

    Directory of Open Access Journals (Sweden)

    İbrahim Doydu

    2013-04-01

    Full Text Available AbstractThe purpose of this study was to find out the influence of Sport Education Model (SEM on cognitive, psychomotor and game performance levels of students during 16 week extrarurricular football education. Both experimental and control group consist of 24 male students with a total of 48. To measure cognitive learning level of students success test, to measure psychomotor learning level Mor-Christian Football General Test and to measure game performance Game Performance Assessment Scale were used. As a result of this study, there was no significant difference between control and experimental group on the basis of SEM in cognitive learning levels (p>0,05. In psychomotor area, there is significant difference between two group on shoting and passing skills (p<0,001. Also there was a significant difference in achievements between skill performance, support and game performance components which were the components of game performance (p<0,05 but there was no significant difference in decision-making compenent(p>0,05. ÖzetBu çalışmanın amacı, spor eğitimi modelinin (SEM 16 haftalık ders dışı futbol eğitim (egzersiz çalışmalarına katılan öğrencilerin bilişsel, psikomotor ve oyun performansı alanlardaki gelişimine etkililiğini incelemektir. Çalışma, deney grubunda 24 (SEM kontrol grubunda 24 (Geleneksel Öğretim Modeli olmak üzere toplam 48 erkek öğrenciden oluşmaktadır. Bilişsel alandaki öğrenmeleri ölçmek için futbola ait başarı testi, psikomotor becerilerini ölçmek için Mor-Christian Futbol Genel Yetenek Testi ve oyun performansı erişilerini belirlemek için Oyun Performansı Değerlendirme Ölçeği kullanılmıştır. Bilişsel alan erişi düzeyleri karşılaştırıldığında deney grubu lehine istatistiksel olarak anlamlı bir fark bulunmamıştır (p>0,05. Psikomotor alanı oluşturan top sürme becerisi dışındaki şut ve pas becerisi erişi düzeyleri arasında deney grubu lehine

  14. Essencialidade nutricional do selénio no homem

    OpenAIRE

    Pavão, Maria Leonor

    2006-01-01

    Sumário da lição de síntese apresentada no âmbito das Provas públicas requeridas para a obtenção do título de agregado no grupo de disciplinas de Bioquímica, 19 de Janeiro de 2007. "ENQUADRAMENTO DA AULA E JUSTIFICAÇÃO DA TEMÁTICA SELECCIONADA. A aula de síntese agora proposta tem por destinatários os alunos da disciplina de Bioquímica III, integrada no 6º semestre do curso de licenciatura em Biologia (ramo de Biotecnologia) da Universidade dos Açores. Trata-se de uma cadeira de carácter o...

  15. Apoptosis Sel Fibroblas Jaringan Pulpa Akibat Paparan Radiasi Ionisasi

    Directory of Open Access Journals (Sweden)

    Supriyadi Supriyadi

    2015-10-01

    Full Text Available In vivo apoptosis of fibroblast pulp cells by ionizing radiation from radiotherapy of the head and neck area has not yet been demonstrated. The study aimed to show in vivo the effect of a single dose of ionizing radiation on apoptosis of fibroblast pulp cells. The sample group consisted of 24 health male Wistar rats that were 3-4 months old and 150-200 g in weight. The rats were divided into 4 groups of 6 rats that were subjected to Cobalt 60 radiation to the head at the levels of 0, 100, 200 or 400 rad. The rats were sacrificed 24 hours after radiation exposure, and the lower incisivus were taken for histopathological processing. Apoptosis was detected by using the TUNEL Assay method. The apoptotc fibroblast pulp cells were counted under light microscope by multiple observers using the blind test approach. The fraction of apoptotic cells was counted as mean of labial and palatal sides of the teeth below odontogenic and free-cell zone. The data were statistically analyzed using one-way anova. The results showed the percentage of apoptotic of fibroblast pulp cells was 6.4, 23.7, 34.5 and 17.8% after , 100, 200, and 400 rad doses, respectively. There were significant differences in the apoptotic percentages between the four groups (p<0.05. In conclusion, the highest fraction of apoptotic fibroblast pulp cells was found after a single 200 rad dose, and this fraction decreased after a single dose of 400 rad.

  16. Evaluasi Apoptosis Sel Odontoblas Akibat Paparan Radiasi Ionisasi

    Directory of Open Access Journals (Sweden)

    Supriyadi Supriyadi

    2013-07-01

    Full Text Available Ionizing radiation that is commonly used in the treatment of head and neck cancer can result in multiple effects, such as cell death (apoptotic or necrotic and malignant transformation. The purpose of this study was to show in vivo the effect of ionizing radiation on odontoblasts. The experimental laboratory study applied the post-test control group design. The test sample consisted of 24 healthy male Wistar rats, 3–4 month of age and 150– 200g in weight. The rats were divided into 4 groups of 6 rats each, subjected to irradiation doses of 0 rad, 100 rad, 200 rad and 400 rad. The cobalt 60 irradiation source was applied to the head of each rat. All animals were sacrificed 24 hours after radiation exposure, and the lower insicivus were taken for histopathological specimen processing. The apoptotic status was evaluated by using the TUNEL Assay method. The apoptotic odontoblasts were counted under light microscope. The fraction of apoptotic cells were taken as the mean count from two sides (labial and palatal of the teeth. The data were statistically analyzed using one-way Anova and Least Significant Different Test ( = 0.05. The results showed that the fraction of apoptotic odontoblasts was 5.15% for 0 rad, 12.72% for 100 rad, 24.32% for 200 rad and 15.22% for 400 rad irradiation. There was a significant difference in the apoptotic percentage of odontoblasts among the four groups (p < 0.05. In conclusion, the highest fraction of apoptotic odontoblasts was found after a single 200 rad dose.DOI: 10.14693/jdi.v15i1.87

  17. Evaluasi Apoptosis Sel Odontoblas Akibat Paparan Radiasi Ionisasi

    OpenAIRE

    Supriyadi Supriyadi

    2013-01-01

    Ionizing radiation that is commonly used in the treatment of head and neck cancer can result in multiple effects, such as cell death (apoptotic or necrotic) and malignant transformation. The purpose of this study was to show in vivo the effect of ionizing radiation on odontoblasts. The experimental laboratory study applied the post-test control group design. The test sample consisted of 24 healthy male Wistar rats, 3–4 month of age and 150– 200g in weight. The rats were divided into 4 groups ...

  18. Analisis Pengaruh Penempatan Femtocell Terhadap Sel Makro Jaringan UMTS

    Directory of Open Access Journals (Sweden)

    Kezia Tamustanty Efendi

    2015-10-01

    Full Text Available Due to the enormous increase of cellular telecommunication systems, mobile data also needs faster access. The Femtocell is the right answer to fulfill the cellular telecommunication system requirements nowadays. The Femtocell is used to cover the areas with a low signal from the Macrocell and also the areas that need a bigger data rate. When using the Femtocell it can produces sometimes interference signals to the Macrocell in uplink as well as in downlink communication because not all of the users can be connected to the Femtocell in a Closed Subscriber Group Femtocell system. This thesis analyses and calculates how the Closed Subscriber Group Femtocell affects the Macrocell in both ways - in uplink to the Macrocell and also in downlink to the Macrocell User Equipment for the maximum power of the Femtocell with 21 dBm. Power Interferences are observed and compared with the real power received in the same coverage area. The current study was calculated with the help of the application ‘Matlab’. The result from the analysis of the Closed Subscriber Group Femtocell is that the Macrocell is affected in both ways - uplink and also downlink. The parameter for uplink interferences is shown by the Noise Rise. The coverage result for accepted Noise Rise point (6dB for minimum threshold for the communication happens is 39 meters. The parameter for downlink interferences is shown by Ec/N0, the coverage result for accepted Ec/N0 point (?18dB for the minimum threshold for the communication happens is 267meters.

  19. Kaheksas ehtenäitus sel hooajal / Kai Lobjakas

    Index Scriptorium Estoniae

    Lobjakas, Kai, 1975-

    1999-01-01

    18. VI-8. VIII Tarbekunstimuuseumis rahvusvaheline ehtekunstinäitus "Meele Avaldus/Mind Seduction". Osalema on kutsutud 30 noort ehtekunstnikku seitsmest Euroopa riigist. Kuraator ja kujundaja Ketli Tiitsar. Eestit esindavad rühmituse F.F.F.F. liikmed, Mari ja Adolfas Shaulys

  20. Implementasi Augmented Reality untuk Pembelajaran Sel Hewan pada Platform Android

    OpenAIRE

    Sultanti, Novri

    2015-01-01

    The most popular learning media are the books or two dimensional. They can be replace with Augmented Reality technology so that users will not easily get bored. A few literature show that the using Augmented Reality in educational realm such as CAI (Computer Aided Instruction) concept is quite efective. The construction of the ARACellS application helps the user to receive a better visualization in the form of three dimension compared to a two-dimensional image that can only be seen on one si...

  1. EFEK APLIKASI PADA HIDROKSIAPATIT TERHADAP PERLEKATAN SEL OSTEOBLAS

    Directory of Open Access Journals (Sweden)

    Siti Sunarintyas

    2011-12-01

    Full Text Available Hydroxyapatite (HA is often used as a human bone graft. Modification of HA surface is developed to increase osseointegration process which is influenced by cells attachment surrounded the tissue. Sericin has polar side groups which accelerate cells attachment. The aim of this research was to determine the effect of sericin application over HA surface on the attachment of osteoblast cells. The research used HA synthesized from gypsum (Kulon Progo, Yogyakarta. Sericin was extracted from silkworm cocoons of Bombyx mori. Sericin of 0.01, 0.05, 0.1% were applied over HA discs surface (10 mm in diameter, 3 mm thick. The discs were inserted into osteoblast cells culture of MC3T3E1 for attachment test. The data were analyzed by ANOVA and LSD. The result showed that the amount of osteoblast cells attached to HA (7.60±0.42 was significantly difference (p<0.05 with HA + sericin 0.01% (10.30±0.52, HA + sericin 0.5% (10.63±0.70, HA + sericin 0.1% (10.67±0.87. Variation of sericin concentrations applied over HA did not influence any significant difference on the amount of cells attachment (p>0.05. In conclusion, sericin application over HA surface increased the amount of osteoblast cells attachment. Concentrations of sericin application over HA (0.01, 0.05, 0.1% did not influence osteoblast cells attachment.

  2. EFEK APLIKASI PADA HIDROKSIAPATIT TERHADAP PERLEKATAN SEL OSTEOBLAS

    OpenAIRE

    Siti Sunarintyas

    2011-01-01

    Hydroxyapatite (HA) is often used as a human bone graft. Modification of HA surface is developed to increase osseointegration process which is influenced by cells attachment surrounded the tissue. Sericin has polar side groups which accelerate cells attachment. The aim of this research was to determine the effect of sericin application over HA surface on the attachment of osteoblast cells. The research used HA synthesized from gypsum (Kulon Progo, Yogyakarta). Sericin was extracted from silkw...

  3. RESISTENSI INSULIN TERKAIT OBESITAS: MEKANISME ENDOKRIN DAN INTRINSIK SEL

    Directory of Open Access Journals (Sweden)

    Mira Dewi

    2012-03-01

    Full Text Available 800x600 Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} The number of obese individuals worldwide has reached 2.1 billion and this will lead to explosion of obesity-related morbidity and mortality. Obese individuals will develop re­sistance to celluler action of insulin. The obesity related insulin resistance is the major risk factor of cardiovascular diseases and Type 2 Diabetes Mellitus, the disease which number has reached epidemic proportion. The association between obesity and insulin resistance seem to be cause and effect relation because studies on human and animal has indicated that the increase or decrease of body weight correlates with insulin sensitivity.  Among of many mechanisms proposed, the most often proposed mechanisms are endocrine and cell in­trinsik mechanism. The increase of fatty acid plasma concentration, dysregulation of adi­pokines and ectopic fat storage are proposed to be the endocrin mechanism that lead to obesity related insulin resistance while oxidative stress and mitochondria dysfunction are the cell intrinsic mechanisms that play role to the disease. Understanding the molecular mechanisms of obesity related insulin resistance will provide valuable information to search for interventions that help to prevent or treat Type 2 Diabetes Mellitus and cardiovascular diseases and its related pathologies. Keywords: Obesity, insulin resistance, fatty acid, adipokines, oxidative stress, mitochondria

  4. Thermodynamic Properties of 1:1 Salt Aqueous Solutions with the Electrolattice Equation of State Propriétés thermophysiques des solutions aqueuses de sels 1:1 avec l’équation d’état de réseau pour électrolytes

    Directory of Open Access Journals (Sweden)

    Zuber A.

    2013-05-01

    moyenne pour des solutions aqueuses simples contenant du LiC1, LiBr, LiI, NaC1, NaBr, NaI, KC1, KBr, KI, CsCl, CsBr, CsI, ou du RbC1. Deux méthodes pour obtenir les paramètres du modèle sont présentées et mises en contraste : une méthode spécifique pour le sel en question et une autre basée sur les ions. Par conséquent, l’objectif de ce travail est de calculer les propriétés thermophysiques qui sont largement utilisées pour la conception, l���exploitation et l’optimisation de nombreux procédés industriels, parmi eux le dessalement de l’eau.

  5. An Analysis of Mathematics and Geometry Questions in OSS, YGS and LYS According to the Revised Bloom Taxonomy Between 2006-2012 Years [2006-2012 Yılları Arasında Yapılan ÖSS, YGS ve LYS Matematik ve Geometri Sorularının Bloom Taksonomisinin Bilişsel Süreç Boyutuna Göre İncelenmesi

    Directory of Open Access Journals (Sweden)

    Taliha Keleş

    2016-12-01

    Full Text Available This study aims to classify the Mathematics and Geometry questions which had been asked university entrance examinations carried out between 2006 and 2012 in OSS/MAT1, OSS/MAT2, YGS/MAT, LYS/MAT and LYS/GEO according to the revised Bloom taxonomy in the dimensions of cognitive process. In the study, document analysis method was used. The data gathered for the purpose of the research was analyzed according to the frequency and percentage of the SPSS 20.0 software package. The study findings revealed that, the Mathematics and Geometry questions asked in the university exams are mostly at the level of apply and analyze of the cognitive process dimension in the revised Bloom Taxonomy. It has been determined that there is no remember of the cognitive process. The comparative statistical analyses showed that there wasn’t a significant difference between the years according to the dimensions of cognitive process of Mathematics and Geometry questions asked in the university entrance exams. To reveal the reflection of the curriculum changes made in 2013 on the exam questions, similar studies can be conducted in the future and the results can compared. [Bu çalışmanın amacı, 2006-2012 yılları arasında yapılan ÖSS/MAT1, ÖSS/MAT2, YGS/MAT, LYS/MAT ve LYS/GEO üniversiteye giriş sınavlarındaki sayısal bölümde yer alan matematik ve geometri sorularını Yeniden Yapılandırılan Bloom Taksonomisine göre bilişsel süreç boyutlarında sınıflandırmaktır. Araştırmanın amacı doğrultusunda çalışmada doküman analizi yöntemi kullanılmıştır. Toplanan veriler, SPSS 20.0 paket programı kullanılarak frekans ve yüzde değerlerine göre analiz edilmiştir. Araştırmada elde edilen verilere göre; Bloom Taksonomisinin bilişsel süreç boyutunda matematik ve geometri üniversite sınav soruların yarısından fazlasının uygulama basamağında ardından ikinci ağırlıklı olarak analiz basamağında yer alırken hat

  6. PenentuanKadar Abu (Ash Content) Pada Karet Remah Mutu SIR 20 Di PT. Pantja Surya Perdagangan

    OpenAIRE

    Singarimbun, Ratni Pratiwi

    2016-01-01

    Ash content testing had been done on the quality of crumb rubber sir 20 which aims to determine the high and low ash content for the crumb rubber on the quality sir 20. This determination process is carried out at a temperature of 550o C ± 20o C with a time of 2 hours. Ash content calculation results obtained for the crumb rubber from the first day until the tenth day in accordance with the Standart Indonesian Rubber (SIR) 20 namely 0,63%, 0,50%, 0,61%, 0,62%, 0,60%, 0,58%, 0,59%, 0,61%, 0,67...

  7. SIMULASI SISTEM KONTROL OPERASI ON GRID SERTA ISLANDING PEMBANGKIT LISTRIK TENAGA SURYA DI JURUSAN TEKNIK ELEKTRO UNIVERSITAS UDAYANA

    OpenAIRE

    Pande K. B. Sutawan; I Nyoman Satya Kumara; W. G. Ariastina

    2015-01-01

    An on-grid solar power plant will distribute electric power to the grid in normal conditions. But when the supply of grid outages (islanding), on-grid solar power plant also can’t operate because the loss of the reference signal that is used as a reference for the inverter in the synchronization process. So there is potential loss of power when solar power plant can be used as a substitute source of electrical energy while PLN can’t serve consumers. In this research developed a simulation mod...

  8. KARAKTERISTIK PENGERINGAN CHIPS MANGGA MENGGUNAKAN KOLEKTOR SURYA KACA GANDA [Characteristics of Mango Chips Drying Using a Double Plated Solar Collector

    Directory of Open Access Journals (Sweden)

    Safrani

    2012-12-01

    Full Text Available The objectives of this research were to study the characteristics of mango chips drying using a double plated solar collector. The materials used were sliced mangoes with the thickness of 3, 6, and 8 mm. The equipments used for this research were double plated solar collector, thermocouple, digital balance, thermometer, vacuum oven, and desiccators. The research parameters included the rate of heat energy absorbed by the double plated solar collector, the heat energy losses, the efficiency of the double plated solar collector and the moisture content of the chips. The results of this study suggested that the use of double plated solar collector could increase the temperature and the amount of heat energy, thus speed up the drying process of the mango chips. The energy needed to evaporate the moisture content in mango decreased in proportion to the increase in drying time. The difference in mango chips’ thickness resulted in different decrease rate in water content until it reached a constant state. The efficiency of the double plated solar collector was 77.82%.

  9. Analisa Komponen Kolektor pada Mesin Pendingin Siklus Adsoprsi Tenaga Surya dengan Variasi Sudut 0o dan 30o

    OpenAIRE

    Nainggolan, Budiman I.

    2016-01-01

    The sun is one of the largest source of energy in the earth's surface. The sun produces solar energy, one of the utilization of solar energy as a source of power for adsorption cycle refrigeration machine. Adsorption cycle refrigeration machine requires a low cost and also safe for the environment. One that affects the performance of equipment is adsorber/generator/collector. Collector type used is a type of flat plate collector. Collector on a refrigeration machine equipped with insulation p...

  10. SIMULASI SISTEM KONTROL OPERASI ON GRID SERTA ISLANDING PEMBANGKIT LISTRIK TENAGA SURYA DI JURUSAN TEKNIK ELEKTRO UNIVERSITAS UDAYANA

    Directory of Open Access Journals (Sweden)

    Pande K. B. Sutawan

    2015-12-01

    Full Text Available An on-grid solar power plant will distribute electric power to the grid in normal conditions. But when the supply of grid outages (islanding, on-grid solar power plant also can’t operate because the loss of the reference signal that is used as a reference for the inverter in the synchronization process. So there is potential loss of power when solar power plant can be used as a substitute source of electrical energy while PLN can’t serve consumers. In this research developed a simulation model that refers to the off grid solar power plant 500 Wp in the Department of Electrical Engineering, University of Udayana and can operate on-grid and off grid when islanding in matlab simulink. In this model made operation scenario where solar power plant operates on grid at the beginning of the simulation and after that operate off-grid (not connected to the grid and supply the local load. The simulation results show the model off grid solar power plant has been able to generate a voltage of 220 V and a frequency of 50 Hz in accordance with the solar power plant at the research site. The simulation results also show model of on grid solar power plant has been able to synchronize to the low voltage grid of PLN not loaded and loaded. On/off grid solar power plant model can operate on-grid or off-grid that corresponds to the operation scenario and produce the same output. Thus solar power plant can supply.

  11. Kajian Experimental Kolektor Surya Prismatik Dengan Variasi Jarak Kaca Terhadap Plat Absorber Menggunakan Sistem Tertutup Untuk Pemanas Air

    OpenAIRE

    Silaban, Supandi

    2013-01-01

    Solar collector is the essential item of equipment which transforms solar radiation energy to some other useful energy form, for example as the water heater. One of the shape solar collector, is prismatic which have ability to receive solar radiation intensity into the fourth areas of colector, so that using solar energy as water heater can more effective. Solar collector can absorb solar radiation intensity and convert it to useful calor for heating the liquid salt inside the pipes of the co...

  12. Pengaruh Penambahan Asam Laktat Terhadap Nilai SPF Sediaan Tabir Surya Kombinasi Oksibenson Dan oktilmetoksin Oksi Sinamat Dalam Basis Vanishing Cream

    OpenAIRE

    Zulfah, Siti

    2010-01-01

    Have test influence of addition of lactic acid to sunscreen efektifity with combination of oksibenson and oktil metoksisinamat in bases of vanishing cream. Cream consist of 4 formula that is Formula I as formula without addition of lactic acid, Formula II as formula with addition of lactic acid 4 %, Formula III as formula with addition of lactic acid 6 %, and Formula IV as formula with addition of lactic acid 8 %. The result of perception physical quality of each formula by organoleptis gi...

  13. Feeding different levels of vitamin E and selenium has no effect on serum immunoglobulin Y (IgY production by layers vaccinated against Escherichia coli and avian encephalomyelitis virus Alimentação com diferentes níveis de vitamina E e selênio não influencia a produção de imunoglobulina Y (IgY no soro de poedeiras leves vacinadas contra Escherichia coli e encefalomielite aviária

    Directory of Open Access Journals (Sweden)

    Giselle Kindlein

    2007-10-01

    Full Text Available The effects of vitamin E and selenium (Se supplementation on the immunity of hens vaccinated against a mixture of six swine-pathogenic Escherichia coli (EC and avian encephalomyelitis virus (AEV were studied. Antibody production (AbP was evaluated in ninety 49 to 57-week-old H&N Nick Chick hens fed diets containing 14IU Vitamin E kg-1 (basal diet, 27, 59, 111, or 111IU vitamin E kg-1 + 0.56ppm Se supplementation. At 51 wks of age, half of the hens were vaccinated against EC, and all birds were vaccinated against AEV. At 53-weeks of age, the birds received a second dose of EC vaccine. Blood samples were collected weekly and serum was analyzed by ELISA for anti-EC IgY and was expressed as optical density (OD. Vaccinated hens had higher serum OD than the non-vaccinated hens (P£0.05. Vaccinated hens fed 27 and 59IU of vitamin E/kg had a higher (POs efeitos da suplementação de vitamina E e Selênio (Se na imunidade de galinhas vacinadas contra uma mistura de 6 sorotipos patogênicos de Escherichia coli (EC e o vírus da encefalomielite aviária (VEA foram estudados. A produção de anticorpos foi avaliada em galinhas H&N Nick Chick durante a 49a e 57a semanas de vida. As aves foram alimentadas com dietas contendo 14UI de Vitamina E kg-1 (dieta basal, 27, 59, 111 e 111UI de Vitamina E kg-1 + 0,56ppm Se suplementar. Às 51 semanas de idade, metade das galinhas foi vacinada contra EC, e todas as aves foram vacinadas contra VEA. Às 53 semanas, as aves receberam a segunda vacina contra EC. Amostras de sangue foram coletadas semanalmente e o soro foi analisado por ELISA para anti-EC IgY e expresso como densidade óptica (DO. Galinhas vacinadas tiveram maior DO do que as não-vacinadas (P<0,05. Aves vacinadas que receberam 27 e 59 UI de vitamina E/kg tiveram maior DO do soro (P<0,05 do que as alimentadas com 111 UI + Se. Os antígenos utilizados mostraram não ser modelos satisfatórios para estudar a influência de micronutrientes na resposta imune de

  14. Avaliação da qualidade protéica de dois formulados em pó, à base de soja enriquecidos com zinco, selênio e magnésio para utilização em nutrição enteral Evaluation of protein quality from two powder formulas, soybean based, enriched with zinc, selenium and magnesium to be used in enteral nutrition

    Directory of Open Access Journals (Sweden)

    Josefina Bressan Resende Monteiro

    2004-03-01

    Full Text Available A partir de extrato solúvel de soja e extrato solúvel de soja desengordurado, foram desenvolvidos dois formulados em pó, os quais foram denominados: FPSA-formulado com extrato solúvel de soja (PSA e FPS60-formulado com extrato solúvel de soja desengordurado (PS60. Além do PSA e PS60, outros produtos foram utilizados na elaboração dos formulados: clara de ovo desidratada, maltodextrina, óleo de soja, óleo de canola, gordura-de-coco, "mix" de vitaminas e minerais e estabilizante. Zinco, selênio e magnésio foram adicionados para atender a 200% das recomendações diárias sugeridas pela RDA. A avaliação da qualidade protéica foi conduzida por meio de ensaio biológico com animais experimentais, no qual foram analisados NPR, NPU e digestibilidade. Não houve diferença significativa entre o FPSA e FPS60, quanto ao NPR e NPU (p > 0,05, e o mesmo ocorreu em comparação com a caseína. Quanto à digestibilidade, os formulados apresentaram resultados semelhantes, porém inferiores aos da caseína. Os formulados mostraram bom valor biológico, pois apresentaram índices de qualidade protéica próximos aos da caseína.It was developed two powder formulas, soybean based, zinc, selenium and magnesium enriched, from soy milk and fat-free soy milk. They were named FPSA -soybean milk formula and FPS60 - fat -free soybean milk formula. Besides soybean, the two formulas were added dehydrated yolk egg, maltodextrin, soybean oil, canola oil, coconut oil, vitamin and mineral mix and stabilizer. Zinc, Selenium and Magnesium were added to attend 200% of RDA. Protein quality was carried out by experimental design with male Wistar rats, and it was analyzed NPR, NPU and digestibility. There was no significant difference (p > 0,05 between FPSA and FPSA60 and between the two formulas and casein, related to NPR and NPU. Both formulas showed similar results on digestibility, but lower than casein. It was concluded that the formulas tested had good biologic

  15. Uji Mutu Bahan Baku Riboflavin Sebagai Bahan Baku Vitamin B Kompleks Yang Diproduksi Oleh Pt. Kimia Farma (Persero) Tbk. Plant Medan

    OpenAIRE

    Armiya, Yulita

    2015-01-01

    Background: Quality is all of characteristics a product or service that support ability a product or the service forward to satisfied need that evident or the real need, so that quality is certained the consument, neither producer nor supplier. Supervision quality basic substance riboflavin it needs to do it because if there are not fullfill condition can lose out the consument. However, inspection quality basic substance riboflavin have to do before in process can be ready. Objective: The...

  16. Kecernaan Bahan Kering dan Bahan Organik Ransum yang Mengandung Pelepah Daun Kelapa Sawit dengan Perlakuan Fisik, Kimia, Biologis dan Kombinasinya Pada Domba

    OpenAIRE

    Surbakti, Thomas Jekin Vindonta

    2015-01-01

    The research was conducted at Livestock Biology Laboratory at Department of Animal Husbandry, Agriculture Faculty,University Sumatra Utara. Started from june to augtust 2013 by using completely randomize designs, with four treatment and four replication. Sixteen growing local sheep with initial body weight 10 ± 1,16 kg were used in this experiment. The experiment were: P0 (concentrate + oil palm frond be treated a physical); P1 (concentrate + oil palm frond be treated a biological); P2 (conce...

  17. IMPLEMENTASI DISTRIBUSI REQUIREMENT PLANNING DAN SAVING MATRIX UNTUK MEMINIMASI TOTAL BIAYA DISTRIBUSI DI INDUSTRI BAHAN KIMIA

    Directory of Open Access Journals (Sweden)

    Johan Oscar Ong

    2013-12-01

    Full Text Available Planning and scheduling of the distribution of goods in PT. Senatama Laboranusa are not well coordinated, so the demand for each product is out of control, which results in deficiency or excess of inventories in both of the factories and each warehouse. This problem will affect the distribution cost incurred by the company. In this study, the distribution data process is done by using Distribution Requirement Planning method and route distribution processing by using Saving Matrix, in which both of these methods can group the delivery schedule and flow of distribution route regularly. PO Release, which contains time, order amount of each area, and lot size EOQ (Economic Order Quantity method used; will be generated from the calculation of DRP. From the calculation of Saving Matrix, route order sequence is applied by using Nearest Neighbor method. After the implementation of Distribution Requirement Planning, the cost reduction resulted is 29.75% and the difference in distance after the application of Saving Matrix is 983.3 Km. With a good distribution activity planning and scheduling, the success rate in meeting the customer demand would be more optimal, while sales performance increases in fulfilling orders in a timely manner and  appropriate amount, hence the distribution costs can be kept as minimum as possible.

  18. Kajian Performansi Mesin Diesel Stasioner Satu Silinder Dengan Sistem Dua Bahan Bakar (Dual Fuel System)

    OpenAIRE

    Sinambela, Gunung A E

    2015-01-01

    The increasing human population on earth and the depletion of oil resources into a few thousandths of a lot of things that encourage us to do research and development on renewable energy sources , one of which has a great potential is the use of biogas is used as fuel for internal combustion engine with dual fuel system. This study aims to analyze the performance of the diesel engine R 175 AN using dual fuel systems diesel and biogas in which biogas flow entering the combustion chamber will b...

  19. Prinsip Penulisan Bahan Ajar Bahasa Mandarin yang Efektif untuk Jurusan Komunikasi Pemasaran Universitas Bina Nusantara

    OpenAIRE

    Kelly Rosalin; Agustian

    2014-01-01

    Article discussed the writing principles that must be considered in compiling Chinese language teaching material specifically used for Marketing Communication students regarding the interest and target of Marketing Communication of Bina Nusantara University. The methodologies used are descriptive quantitative for distributing questionnaires and qualitative approach through observation and interview. Research found the appropriate and effective Chinese language teaching material would enhance ...

  20. Prinsip Penulisan Bahan Ajar Bahasa Mandarin yang Efektif untuk Jurusan Komunikasi Pemasaran Universitas Bina Nusantara

    Directory of Open Access Journals (Sweden)

    Kelly Rosalin

    2014-10-01

    Full Text Available Article discussed the writing principles that must be considered in compiling Chinese language teaching material specifically used for Marketing Communication students regarding the interest and target of Marketing Communication of Bina Nusantara University. The methodologies used are descriptive quantitative for distributing questionnaires and qualitative approach through observation and interview. Research found the appropriate and effective Chinese language teaching material would enhance the standard of Chinese language learning. At present, Chinese language teaching material used by Marketing Communication students has not been able to fulfill their requirements. In addition, the target learners of the teaching material are universal.

  1. PENGARUH PENAMBAHAN SILIKON TERHADAP SUDUT KONTAK HIDROPOBIK DAN KARAKTERISTIK ARUS BOCOR PERMUKAAN BAHAN RESIN EPOKSI

    OpenAIRE

    Abdul Syakur; Ika Novia A; Sarjiya Sarjiya; Hamzah Berahim

    2012-01-01

    Currently, polymer materials such as epoxy resin have been used as an insulator in the distribution andtransmission line. Some advantages of using this epoxy resin material having the dielectric properties are betterthan porcelain and glass insulators. On the other side, epoxy resins are also disadvantage the surface ishygroscopic. For the repair was done by adding the surface properties of silicone rubber materialThis paper describes the effect of adding silicone rubber against contact angle...

  2. PENGEMBANGAN MINUMAN FORMULA IBU HAMIL DAN MENETEKI BERBASIS BAHAN LOKAL NON SUSU

    Directory of Open Access Journals (Sweden)

    Almasyhuri Almasyhuri

    2012-11-01

    Full Text Available The Development of Non-Milk Based Formulated Drinks For Pregnant and Breastfeeding Women.Background: The pregnant and breastfeeding women need a greater nutrition intake compared to normal women. At second and third trimester of pregnancy, and during breastfeeding, a woman should have additional nutrient for approximately 300 Kcal energy and 17 grams protein per day. Recently, various formula drinks for pregnant and breastfeeding women are available in the market, however most of these formulas are expensive.Objectives: To develop non-milk based formula drinks for pregnant and breastfeeding women which contained adequate amount of additional macro and micro nutrients had good sensory quality and had long self life.Methods: Initially, 13 kinds of drinks were formulated. The drinks contained aproximately 300 Kcal energy and 17grams protein. They were analyzed for nutrient contain, microbiology and sensory quality in order to vote the best 5 formulas at the laboratory scale. The formulated drinks were packaged and sealed in 150 mL plastic cups. To know the self life of the drinks, storage was carry out in the room, incubator and refrigerator temperature during 12 months.Results: From sensory test, it was concluded that the best five drinks were kweni formula, chocholate formula, ginger formula, guava-orange formula and red bean formula. One cup of 150 ml formulated drink, had 140-150 Kcal energy and 8 grams protein. Therefore, to fulfill additional requirements for pregnant and breastfeeding women, the drinks should be consumed 2 cups a day.Conclusions: The formula drink developed could provide additional energy, protein, vitamin and mineral needed by pregnant and breast feeding women. There was no side effect reported by the panelist because of consuming the formula.Keywords: formulated drinks, pregnant women, breastfeeding women, acceptance.

  3. Pembuatan Arang Aktif Dengan Bahan Baku Limbah Teh Sebagai Peningkat Kualitas Fisik Air

    OpenAIRE

    Zurenahusla, Dita Anastasia Sarah

    2016-01-01

    The research was aimed to know water’s physical quality after activated carbon applicated which has been roasted carbonized and activated with H-3PO4and to know the percentation of moisture content, ash content and vollatile matter of activated carbon which appropriate with quality standard of activated carbon. The research was done in Agricultural Engineering Laboratory Agriculture Faculty University of North Sumatera from February till April 2016. The method of the research was experimen...

  4. Pemanfaatan Bahan Bio-anorganik untuk Memproduksi Biomassa Hijauan Pakan dan Inokulan Fungi Mikoriza Arbuskula

    Directory of Open Access Journals (Sweden)

    A. D. Nusantara

    2010-12-01

    Full Text Available Inoculant production of arbuscular mycorrhizal fungi (AMF has a vital role in sustaining of higher forage legume production. Currently, it is important to find the alternative materials that can be used as sources of phosphorus due to the need of lower cost, environmentaly friendly, and easily available. Bone meal and rock phosphate are some of the bio-inorganic sources that can be used as a phosphorus source for producing biomass of forage legume and AMF’s inoculant production. A glasshouse experiment was conducted to determine the effectiveness of different type of bio-inorganic materials as a fertilizer to increase forage legume biomass and for specific AMF’s inoculant production. The experiment was arranged in a factorial randomized block design with two factors, i.e. type of AMF’s species (Glomus etunicatum NPI-126 and Acaulospora tuberculata INDO-2 and type of bio-inorganic materials (artifical fertilizer solution as a control, SP36, rock phosphate, and bone meal. Results showed that G. etunicatum gave better result in terms of host gowth, root colonization and spore production compare to A. tuberculata. Bone meal was better a phosphorus source for AMF’s inoculant production instead of artifical fertilizer or other bio-anorganic sources. In conclusion, milled bone meal has a good phosphorus source for AMF’s (G. etunicatum inoculant production

  5. Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

    Directory of Open Access Journals (Sweden)

    AGUSTINA TANGKETASIK

    2014-01-01

    Full Text Available Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage andapplication anorganic fertilizer to suppose decrease soil organic matter. How low organic matter contentof paddy soil and uppland soil not yet were taken.Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil samplewas 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency wastaken 4 - 5 soil samples with random sampling. Soil sample was analyzed at Laboratorium TanahFakultas Pertanian Universitas Udayana. Organic matter content was analyzed with Walkley danBlack method and soil texture was analyzed with Pipet method. Organic matter content of paddy soilwere correlated with soil texture (sand, silt and clay, and of uppland soil were correlated with soiltexture (sand, silt and clay.Result of this experiment showed that, soil organic matter of paddy soil was higer than uppland soil.Soil organic matter of paddy soil with criteria very high 4.17 %, high 27.08 %, moderate 47.92 %,low 18.75 % and very low 2.08 %. Soil organic matter of uppland soil with criteria : high 6.25 %,moderate 35.42 %, low 39,58 % and very low 18.75 %. Fine texture was dominant of paddy soil, butcoarse texture was dominant at uppland soil. Correlation between soil organic matter to soil texture ofuppland soil was better than correlation between soil organic matter with soil texture at paddy soil.Correlation soil organic matter with texture (sand at uppland soil r = -0.5142* and correlation withclay r = 0.5007*. Correlation at paddy soil between sand and soil organic matter r = -0.1241 andbetween clay and organic matter of soils r = 0.2150.

  6. Pemanfaatan Bahan Bio-anorganik untuk Memproduksi Biomassa Hijauan Pakan dan Inokulan Fungi Mikoriza Arbuskula

    OpenAIRE

    A. D. Nusantara; C. Kusmana; I. Mansur; L. K. Darusman; Soedarmadi

    2010-01-01

    Inoculant production of arbuscular mycorrhizal fungi (AMF) has a vital role in sustaining of higher forage legume production. Currently, it is important to find the alternative materials that can be used as sources of phosphorus due to the need of lower cost, environmentaly friendly, and easily available. Bone meal and rock phosphate are some of the bio-inorganic sources that can be used as a phosphorus source for producing biomass of forage legume and AMF’s inoculant production. A glasshouse...

  7. PENGARUH NILAI OKTAN BAHAN BAKAR DAN PUTARAN MESIN PADA KENDARAAN BERMOTOR TERHADAP KARAKTERISTIK EMISI GAS BUANG

    Directory of Open Access Journals (Sweden)

    I P Sastra Negara

    2012-11-01

    Full Text Available The air pollution that is occurring currently is main by caused by the use of motor vehicle that consequently it lead to the increasing fuel consumptions as the main source enrgy for transportation equipment. The fuel that is used in the vehicle comes in several types. In the market its differences show by the octane numbers that can contribute different effect to the environment due to their combustion processes. The road conditions through which the vehicles move are the major factors that can trigger the growth of pollution to the surrounding. It is predicted that about 70% of the air pollutions is caused by the motor vehicle emissions.This research was fully conducted in the laboratorium. Three types of fuel with different octane numbers were used in this research. Premium with octane number 88, Pertamax with octane number 92, and Biopertamax with octane number 91. The engine speeds were also varied from 500 rpm, 1000 rpm, 1500 rpm, 2000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, to 4000 rpm. For every type of fuel, the engine was run five times for every engine speed in order to obtain the exhausted gas characteristics from the vehicles to the environment.The result of the research shows that at engine speed of 2500 rpm the CO emission for each type of fuel : Premium with octane number 88 is 0,415%, Pertamax with octane number 92 is 0,556%, and Biopertamax with octane number 91 is 0,273%. The octane number also effects the CO2, HC, and NOx emissions in small quantities. Statistical analysis shows both the engine speed and the octane number contribute significant effects on the exhaust emissions, the CO and HC emissions provided negative effects, while the CO2 and NOx emissions get positive effects. In comparisan to with the vehicle speed on the road from secondary data to represent the engine speed in the laboratorium, and assuming that the traffic density is identical to a factor that determining engine speed, it can be concluded that the air pollution by CO emission due to the characteristics of the road has negative influence.The octane number of the fuel and the engine speed gives a significant effect. The traffic density and the road conditions can trigger the level of the concentration of CO gas as pollutants to the surrounding air.

  8. PENGARUH NILAI OKTAN BAHAN BAKAR DAN PUTARAN MESIN PADA KENDARAAN BERMOTOR TERHADAP KARAKTERISTIK EMISI GAS BUANG

    OpenAIRE

    I P Sastra Negara; I W. BUDIARSA SUYASA; I.W. Suarna

    2012-01-01

    The air pollution that is occurring currently is main by caused by the use of motor vehicle that consequently it lead to the increasing fuel consumptions as the main source enrgy for transportation equipment. The fuel that is used in the vehicle comes in several types. In the market its differences show by the octane numbers that can contribute different effect to the environment due to their combustion processes. The road conditions through which the vehicles move are the major factors that ...

  9. PENGEMBANGAN MINUMAN FORMULA IBU HAMIL DAN MENETEKI BERBASIS BAHAN LOKAL NON SUSU

    OpenAIRE

    Almasyhuri Almasyhuri; Nelis Imanningsih*; Suryana Purawisastra; Erwin Affandi; Nunung Nurjanah

    2012-01-01

    The Development of Non-Milk Based Formulated Drinks For Pregnant and Breastfeeding Women.Background: The pregnant and breastfeeding women need a greater nutrition intake compared to normal women. At second and third trimester of pregnancy, and during breastfeeding, a woman should have additional nutrient for approximately 300 Kcal energy and 17 grams protein per day. Recently, various formula drinks for pregnant and breastfeeding women are available in the market, however most of these formul...

  10. Pemanfaatan Kaolin Sebagai Bahan Baku Pembuatan Aluminimum Sulfat Dengan Metode Adsorps

    OpenAIRE

    Jalaluddin; Toni Jamaluddin

    2009-01-01

    Kaolin adalah salah satu jenis tanah lempung yang tersusun dari mineral-mineral. Kaolin dapat digunakan pada industri kertas, yang dapat mengisi pulp. Reaksi antara kaolin dengan larutan asam sulfat akan menghasilkan larutan aluminium sulfat. Koalinit yang baik untuk pembuatan aluminium sulfat adalah koalinit yang telah diaktivasi terlebih dahulu. Waktu dan temperature pengontakan sangat mempengaruhi daya adsorbsinya. Hal ini dapat kita lihat pada temperature aktifasi 5000 C, ukur...

  11. Pemanfaatan Jerami Padi (Oryza sativa L.) sebagai Bahan Baku Pembuatan Karboksimetil Selulosa

    OpenAIRE

    Hasibuan, Irma Fitri

    2016-01-01

    Background: Paddy straw (Oryza sativa L.) is agricultural waste which can be used as the source of cellulose since it contains 36 % of cellulose. Carboxymeythyl cellulose is a linear polymear cellulose ether and anionic compoud. Objective: To make carboxymethyl cellulose (CMC) from paddy straw and to compare the CMC characteristic of paddy straw with commercial CMC. Method: Carboxymethyl cellulose of paddy straw (KSJP) was made by processing delignifacation in order to obtain a-cellulos...

  12. PENGARUH PENAMBAHAN SILIKON TERHADAP SUDUT KONTAK HIDROPOBIK DAN KARAKTERISTIK ARUS BOCOR PERMUKAAN BAHAN RESIN EPOKSI

    Directory of Open Access Journals (Sweden)

    Abdul Syakur

    2012-02-01

    Full Text Available Currently, polymer materials such as epoxy resin have been used as an insulator in the distribution andtransmission line. Some advantages of using this epoxy resin material having the dielectric properties are betterthan porcelain and glass insulators. On the other side, epoxy resins are also disadvantage the surface ishygroscopic. For the repair was done by adding the surface properties of silicone rubber materialThis paper describes the effect of adding silicone rubber against contact angle of hidrophobicity and surfaceleakage current characteristics of epoxy resin materials ( Di-Glycidyl Ether of Bisphenol A (DGEBA andMethaphenilene Diamine (MPDA. The study was conducted in the laboratory using the electrode method IEC587:1984 with NH4Cl contaminants. The voltage applied to the epoxy resin sample at 3.5 kV and 50 HzfrequencyThe experimental results showed that the addition of silicon rubber in epoxy resin makes the surface materialcontact angle increases. The higher percentage of silicone rubber, the greater the contact angle and the longertime required for the occurrence of surface discharge.

  13. Studi Komposisi Mineral Tepung Batu Bukit Kamang Sebagai Bahan Baku Pakan Sumber Mineral

    Directory of Open Access Journals (Sweden)

    Khalil

    2007-04-01

    Full Text Available The study was conducted to determine mineral content of limestone originated from natural deposit of Bukit Kamang for feedstuff. Six samples were prepared and chemically analyzed. The first was limestone in meal form as a product of local milling industry. Another five samples were deposit components with different color of blackish, dark blue, blue, light blue and white. There was 21 kinds of mineral determined which were divided into 3 groups: macros (Ca, P, Mg, Na, K, Cl and S, trace minerals (Mn, Zn, Fe, Cu, Se, Co and Mo and toxic elements (As, F, Hg, Cd, Pb, Ni and Cr. The results showed that Bukit Kamang’s limestone contained considerable high essential minerals of Ca, Se, Fe and Mn. The limestone consisted of 38%-40% Ca, 388 ppm Se, 295 ppm Fe and 205 ppm Mn. There were two toxic elements detected: Pb and Cd, but their concentration was found relatively low: 28 and 7 ppm, respectively.

  14. Penggunaan Limbah Kopi Sebagai Bahan Penyusun Ransum Itik Peking dalam Bentuk Wafer Ransum Komplit

    Directory of Open Access Journals (Sweden)

    Muhammad Daud

    2013-04-01

    Full Text Available Effect of coffee waste as component of compiler ration peking duck in the form of wafer complete ration ABSTRACT. Coffee waste is a by-product of coffee processing that potential to be used as feed stuff for peking duck. The weakness of this coffee waste, among others, is perishable, voluminous (bulky and the availability was fluctuated so the processing technology is needed to make this vegetable waste to be durable, easy to stored and to be given to livestock. To solve this problem vegetable waste could be formed as wafer. This research was conducted to study effectiveness of coffee waste as component of compiler ration peking duck in the form of wafer complete ration This experiment was run in completely randomized design which consist of 4 feed treatment and 3 replications.  Ration used was consisted of  P0 = wafer complete ration 0% coffee waste (control, P1 = wafer complete ration 2,5% coffee waste, P2 = wafer complete ration 5% coffee waste, and P3 = Wafer complete ration 7,5% coffee waste. The Variables observed were: physical characteristic (aroma, color, and wafer density and palatability of wafer complete ration. Data collected was analyzed with ANOVA and Duncan Range Test would be used if the result was significantly different. The result showed that the density of wafer complete ration coffee waste was significantly (P< 0.05 differences between of treatment. Mean density wafer complete ration equal to: P0= 0,52±0,03, P1 =0,67±0,04, P2 =0,72±0,03, and P3 = 0,76±0.05 g/cm3. Wafer complete ration coffee waste palatability was significantly (P< 0.05 differences between of treatment. It is concluded that of wafer complete ration composition 5 and 7,5% coffee waste was significantly wafer palatability and gave a highest wafer density. The ration P0 was the most palatable compare to other treatments for the experimental peking duck.

  15. Pengaruh Penambahan NaCl Terhadap Perubahan Viskositas Bahan Pencuci Tangan Cair (Hand Soap)

    OpenAIRE

    Rangkuti, Sulwan Efendi

    2010-01-01

    Research on the effect of adding 20% NaCl solution as the value of thickeners on the viscosity of liquid hand washing materials (hand soap) have been performed. Liquid hand washing materials (hand soap) is made by adding NaCl variation of 20% as much as 100 mL, 140 mL, 180 mL, 220 mL, 260 mL, 300 mL, 340 mL, 380 mL, 420 mL to 1000 mL samples, which were homogenized with stirring speed 2000 rpm at room temperature (30oC). Sample density values determined using piknometer while using viskosimet...

  16. Pengaruh Berbagai Bahan Litter Terhadap Konsentrasi Ammonia Udara Ambient kandang dan Performan Ayam Broiler

    OpenAIRE

    Sulaiman Ibrahim; Allaily Allaily

    2012-01-01

    The effect of different litter materials on ammonia concentration of the air ambient stall and broiler performance ABSTRACT. The study was conducted to observe the effect of ammonia concentration of broiler chicken coop air to the treatment various types of litter. High ammonia concentrations would interfere with performance of broiler chickens and become a problem for the environment. A good litter quality is expected to address the problem of ammonia that occur in the broiler chicken co...

  17. Pengaruh Berbagai Bahan Litter Terhadap Konsentrasi Ammonia Udara Ambient kandang dan Performan Ayam Broiler

    Directory of Open Access Journals (Sweden)

    Sulaiman Ibrahim

    2012-04-01

    Full Text Available The effect of different litter materials on ammonia concentration of the air ambient stall and broiler performance ABSTRACT. The study was conducted to observe the effect of ammonia concentration of broiler chicken coop air to the treatment various types of litter. High ammonia concentrations would interfere with performance of broiler chickens and become a problem for the environment. A good litter quality is expected to address the problem of ammonia that occur in the broiler chicken coop. This study uses a completely randomized, with 5 litter treatments. T0 without treatment repose only black plastic as litter, litter composition T1 100% bran, 50% T2 litter composition husks and Charcoal Shell 50%, T3 50% 50% husk litter composition and zeolite 50%, T4 25% husks litter composition, 25% charcoal, 25% zeolite and 25% of the land. Each treatment was repeated 3 times, each test consisted of eight chickens. Parameters observed in the form of ammonia concentration of air cages at week four, weekly feed intake, weight gain per week, the final weight, feed conversion, and mortality. The results indicate different types of litter treatment was very real influence of ammonia concentration of air enclosure. T4 treatment with a 1:1 blend of each component of the litter that is used successfully absorb such a large aerial ammonia, which indicates the ammonia content of the air is the smallest compared with other treatment 4. While the treatment without litter showed a very large aerial ammonia compared with the treatment. Feed consumption results also showed that the treatment that produces a small value causes ammonia to be markedly higher consumption. Values for weight gain, final weight, feed conversion, and mortality are not significantly affected by various types of litter treatment.

  18. PRODUK BAHAN ALAM DARI 5 APOTEK DI DKI JAKARTA : SUATU TINJAUAN EKSPLORATIF

    OpenAIRE

    Nani Sukasediati; B. Dzulkarnain; Vincent H.S. Gan

    2012-01-01

    The study to explore the marketed natural products had been carried out at the beginning of 1997. There were 24 natural products that were sold at 5 retail pharmacies at 5 areas in Jakarta had been analyzed. The descriptive analysis was carried out mostly based on the informations of its package inserts and labels. The qualitative's analysis of the informations had been focused on the written claim indications, the empirical efficacy as well as its safety, longterm side effects in particular....

  19. PENENTUAN ANGKA OKTANA BAHAN BAKAR KOMERSIAL DENGAN MENGGUNAKAN MODEL KINETIKA OKSIDASI DAN PEMBAKARAN HIDROKARBON MULTIKOMPONEN

    OpenAIRE

    Yuswan Muharam; Chandra Hadiwijaya; Jacquin Suryadi

    2012-01-01

    One of the characteristics of gasoline fuel is anti-knock property represented by its octanenumber. The determination of octane numbers in Indonesia is by using cooperative fuel researchengines. The usage of cooperative fuel research engines in Indonesia has constraints, i.e. the limitednumber of the units and the old age. This study aims to obtain the octane numbers of commercialfuels by using kinetic models. The kinetics models of the oxidation and combustion of primaryreference fuel and mu...

  20. Uji Berbagai Jenis Bahan Plastik Pada Alat Pengolahan Limbah Plastik Berbahan Bakar Tempurung Kelapa

    OpenAIRE

    Utama, Didy Hikmah

    2015-01-01

    DIDY HIKMAH UTAMA : Testing of Various Types of Plastic Materials in Plastic Waste Processing Device using Coconut Shell Fuel, supervised by SAIPUL BAHRI DAULAY and AINUN ROHANAH. The decrease of fossil resources and increase population are very contradictive to energy consume for human life and social economy activity. So, alternative energy is needed which environment friendly by the use of plastic waste as fuel. This research as aimed to compare fuel from plastic (Polyeth...

  1. EVALUASI SISTEM INFORMASI AKUNTANSI PEMBELIAN DAN PERSEDIAAN BAHAN BAKU PADA PT SUMBER BAHAGIA METALINDO

    OpenAIRE

    Siti Elda Hiererra; Efrizon; Yun Yun; Eka Yuliany

    2012-01-01

    The research objective was to evaluate, learn and analyze whether the companies business processes in accounting information systems of purchases and inventory of raw materials implemented in the company run as expected; to find out whether the accounting information system of purchasing and inventory of raw materials is well integrated, and to provide recommendations and suggestions to improve the weaknesses in the system for the companies assets can be well cared for. Several methodologi...

  2. EVALUASI SISTEM INFORMASI AKUNTANSI PEMBELIAN DAN PERSEDIAAN BAHAN BAKU PADA PT SUMBER BAHAGIA METALINDO

    Directory of Open Access Journals (Sweden)

    Siti Elda Hiererra

    2012-05-01

    the companies assets can be well cared for. Several methodologies are implemented in this research, which are literature study, field study, such as: interviews, observation, checklists, and documentation review followed by data analysis. Audit is implemented using audit around the computer. The results obtained are in the form of data analysis presented as problem findings, the impacts and recommendations for remedial action. It can be concluded from the results of this study that PT. Sumber Bahagia Metalindo owns sufficient information system control, but still there are some weaknesses to be improved in order to improve control process to the better objective.

  3. UJI BIOKOMPATIBILITAS KOMPOSIT POLIVINIL ALKOHOLHIDROKSIAPATIT DENGAN PENGUAT CATGUT SEBAGAI BAHAN PENYAMBUNG PATAH TULANG

    Directory of Open Access Journals (Sweden)

    M. Taha Ma’ruf, Widowati Siswomihardjo, Marsetyawan HNE Alva Edy Tontowi

    2013-12-01

    Full Text Available Bone fracture fixation devices have been using rigid metallic materials such as titanium, titanium-alloy or cobalt chrome. Besides having some advantages, the titanium fixation devices also have disadvantages, such as too high strength and stiffness. This continuously stimulates the bone, causing bone atrophy under the plate, further disrupting the growth of bones, especially in children. Other deficiencies of this metal material is its sensitivity to temperature changes and the spread of metal ions in several organs. Some of these shortcomings led to the need for a secondary operation. Bone fracture fixation devices, such as the poly-l-lactic acid (PLLA, can be absorbed by the body and show some other advantages. However, it also has some drawbacks due to the high crystalline products during the degradation process. Lactic acid monomer released after degradation causes cellular response at the implant site, which facilitates the release of chemical mediators, such as prostaglandine by fibroblasts and macrophages as a cause of bone resorption. Therefore, this study aimed to develop the use of other polymeric materials that have good biocompatibility,appropriate mechanical strength, and can be absorbed by the body, such as Polyvinyl Alcohol (PVA. Previous research suggests that the PVA-HA composite with catgut reinforcement has sufficient and stable mechanical strength to be used as bone fracture fixation material. The purpose of this study is to know whether the PVA-HA composite with catgut reinforcement has good biocompatibility without toxicity and hypersensitivity effects in experimental animals. Biocompatibility testing includes local cytotoxicity and type IV contact hypersensitivity test. This type of research is experimental in vivo laboratory using wistar rats (Rattus norvegicus. Testing is done through two phases, in which induction or sensitization phase is done by rubbing PVA-HA composite with catgut reinforced ointment powder on the ears that lasts up to 10 days. After being rested for 3 days, this is followed by a second phase contact (elicitation on day 14 and observed in the period of 24, 48, and 72 hours. Observations were made macroscopically and ear thickness was measured with a micrometer. Local toxicity testing is done by implantation of PVA-HA composite with catgut reinforcement on the back catgut of wistar rats. After a certain time period, the implant material is opened,examined, and observed histologically under a light microscope. The results showed no discoloration or induration on the animal ears in all treatment and control groups, both for the sensitization and the elicitation phase. One way ANOVA statistical test showed that there were no significant differences in the results of measurements of the thickness of the wistar rats ears from all treatment groups before and after treatment on measures 24, 48 and 72 hours (ρ >0.05. Microscopic examination showed no infiltration of acute inflammatory cells such as neutrophils, basophils or eusinofil, and chronic inflammatory cell infiltration such as macrophages, lymphocytes and plasma cells. It can be concluded that the PVA-HA composite with catgut reinforcement is a material that does not cause toxicity and hypersensitivity in experimental animals, thus potentially can be used as bone fractures fixation material. 

  4. Pengaruh Perlakuan Alkali terhadap Sifat Tarik Bahan Komposit Serat Rami-Polyester

    OpenAIRE

    Kuncoro Diharjo

    2006-01-01

    The Natural Composite (NACO) is material that has a good potential to be developed in Indonesia. The mechanical bonding of the composite reinforced natural fiber can be increased by using chemical treatment of fiber or by using the addition of coupling agent. The chemical treatment, for example alkali treatment, is often used because it is more economic. The objective of this research is to investigate the effect of alkali treatment to the tensile properties of unidirectional continuous ramie...

  5. Perkembangan Semen Tulang Sebagai Bahan Fiksasi pada Perawatan Bedah Tulang di Bidang Kedokteran Gigi

    Directory of Open Access Journals (Sweden)

    Bambang Irawan

    2015-09-01

    Full Text Available The first bone cement developed by Charnley in the 1960s using polymethyl methacrylate (PMMA remains the most widely used material for fixation of orthopaedic joint replacement. In the field of dentistry, polycarboxylate and glass ionomer cements first came to prominence as dental cements in the late 1960s and early 1970s. Although biocompatible, the zinc component results in the formation of fibrous collagen capsule around the zinc polycarboxylate cement in vivo, which compromises the strength of the intermediate region between the bone and cement. Glass ionomer cements were anticipated to have potential in orthopaedic applications. The discovery of a well integrated intermediate layer between bone and many bioactive ceramic phases from the calcium-phosphate systems, such as hydroxyapatite (HA, resulted in the development of new cements incorporating such phases. Investigations into bioglass and apatite/wollastonite glass-ceramics prompted the development of off-the-shelf bone graft substitute materials. Synthetic hydroxyapatite is commercially available and serves primarily as a scaffold in order to facilitate the bone regeneration process. Many investigations have ranged from the development of castable bioactive materials to modified bioactive composites. This article attempts to give a broad overview of the different types of cements.

  6. Model Persediaan Bahan Baku Multi Item dengan Mempertimbangkan Masa Kadaluwarsa, Unit Diskon dan Permintaanyang Tidak Konstan

    Directory of Open Access Journals (Sweden)

    Stanley Surya Jaya

    2012-01-01

    Full Text Available Many research focus on inventory problem, since inventory has significant effect to financial of a company. This research tries to develop multi items inventory models by considering expire date and unit discount with stochastic demand. Stochatic demand result in possibility of lost sales and backorder, so lost sales and backorder will be considered in the models. The models are solved using simulation and Genetic Algorithm due to complexity of the models. A numerical example and sensitivity analysis are conducted to verify the models. The sensitivity analysis shows that inventory cost and backorder cost have significant effect to ordering time.

  7. Kinerja Mesin Diesel Memakai Bahan Bakar Biodiesel Biji Karet dan Analisa Emisi Gas Buang

    OpenAIRE

    I Wayan Susila

    2010-01-01

    The research about development of biodiesel (B-100) production process from RSO which is produced in the non-catalyst superheated methanol in a bubble column reactor (BCR) atmospheric pressure has been reported. The fuel which is used in this research has the following specifications: density 882 g/ml; kinematic viscosity 5.19 cSt; calculated cetane index (CCI), 47.5; pour point -6oC, flash point 200oC; micro carbon residue in the original sample 0.126% of mass and the 10% distillation residu...

  8. Pengaruh Perlakuan Alkali terhadap Sifat Tarik Bahan Komposit Serat Rami-Polyester

    Directory of Open Access Journals (Sweden)

    Kuncoro Diharjo

    2006-01-01

    Full Text Available The Natural Composite (NACO is material that has a good potential to be developed in Indonesia. The mechanical bonding of the composite reinforced natural fiber can be increased by using chemical treatment of fiber or by using the addition of coupling agent. The chemical treatment, for example alkali treatment, is often used because it is more economic. The objective of this research is to investigate the effect of alkali treatment to the tensile properties of unidirectional continuous ramie fiber reinforced polyester composite. Visual inspections were performed to asses the mechanism of fracture. The ramie fiber was immersed in the alkali solution (5% NaOH for 0, 2, 4, and 6 hours. And then, it was washed using fresh water and dried naturally. The matrix used in this research is unsaturated polyester resin 157 BQTN with MEKPO hardener 1% (v/v. The composites were made by using press mold method for Vf " 35%. All specimens were post cured at 62 0C for 4 hours. The tensile test specimens were produced according to ASTM D-638. The tensile test was carried out on a tensile testing machine and the elongation was measured using an extensometer. The fracture surface was investigated to identify the mechanism of fracture. The result shows that the tensile strength and strain of the composites have the optimum values for 2 hours treated fiber, i.e. 190.27MPa, and 0.44% respectively. The longer time of the alkali treatment of fiber increases its modulus. The composite prepared by 6 hours treated fiber has the lowest strength. The fracture surfaces of the composites prepared by 0, 2, and 4 hours alkali treated type are classified as splitting in multiple area. In contrast, the fracture of the composite prepared by 6 hours treated fiber has sigle fracture type. The fracture surface of the composite reinforced untreated fiber shows fiber pull out. Abstract in Bahasa Indonesia : Komposit alam (NACO adalah material yang memiliki potensi yang baik untuk dikembangkan di Indonesia. Mechanical bonding komposit yang diperkuat serat alam dapat ditingkatkan dengan perlakuan kimia serat atau mengunakan coupling agent. Perlakuan kimia, seperti perlakuan alkali, sering digunakan karena lebih ekonomis. Tujuan penelitian ini adalah menyelidiki pengaruh perlakuan alkali terhadap sifat tarik komposit berpenguat serat rami kontinyu dengan matrik poliester. Pengamatan visual dilakukan untuk menyelidiki mekanisme perpatahan. Serat rami direndam di dalam larutan alkali (5% NaOH selama 0, 2, 4, dan 6 jam. Selanjutnya, serat tersebut dicuci menggunakan air bersih dan dikeringkan secara alami. Matrik yang digunakan dalam penelitian ini adalah resin unsaturated polyester 157 BQTN dengan hardener MEKPO 1% (v/v. Komposit dibuat dengan metode cetak tekan pada Vf " 35%. Semua spesimen dilakukan post cure pada suhu 62 0C selama 4 jam. Spesimen uji tarik dibuat mengacu pada standar ASTM D-638. Pengujian tarik dilakukan dengan mesin uji tarik dan perpanjangan diukur dengan menggunakan extensometer. Penampang patahan diselidiki untuk mengidentifikasi mekanisme perpatahannya. Hasil penelitian menunjukkan bahwa kekuatan dan regangan tarik komposit memiliki harga optimum untuk perlakuan serat 2 jam, yaitu 190.27 Mpa dan 0.44%. Komposit yang diperkuat serat yang dikenai perlakuan 6 jam memiliki kekuatan terendah. Penampang patahan komposit yang diperkuat serat perlakuan 0, 2, dan 4 jam diklasifikasikan sebagai jenis patah slitting in multiple area. Sebaliknya, penampang patahan komposit yang diperkuat serat perlakuan 6 jam memiliki jenis patah tunggal. Penampang patahan komposit yang diperkuat serat tanpa perlakuan menunjukkan adanya fiber pull out. Kata kunci: Perlakuan alkali, serat rami, unsaturated polyester, sifat tarik.

  9. Perkembangan Semen Tulang Sebagai Bahan Fiksasi pada Perawatan Bedah Tulang di Bidang Kedokteran Gigi

    OpenAIRE

    Bambang Irawan

    2015-01-01

    The first bone cement developed by Charnley in the 1960s using polymethyl methacrylate (PMMA) remains the most widely used material for fixation of orthopaedic joint replacement. In the field of dentistry, polycarboxylate and glass ionomer cements first came to prominence as dental cements in the late 1960s and early 1970s. Although biocompatible, the zinc component results in the formation of fibrous collagen capsule around the zinc polycarboxylate cement in vivo, which compromises the stren...

  10. Kualitas Papan Semen dari Limbah Industri Pensil dengan Berbagai Komposisi Bahan Baku dan Konsentrasi Katalis

    OpenAIRE

    Salmah, Fatmala

    2015-01-01

    This research concerning on the use of pencil shavings waste as a raw material in the manufacture of cement board. The purpose of this research was to evaluate the quality of the cement board to the physical properties and mechanical properties of the board with different ratio of raw materials:cement and various concentrations of CaCl2 as a catalyst. The board was made of pencil shavingswith various ratio of raw materials (cement : shave ) were : 75:25; 80:20; 85:15 and a catalyst concentrat...

  11. PENGUJIAN NETRALISASI SIFAT REAKTIF BUMBU DALAM GARAM BERYODIUM DENGAN BAHAN TAMBAHAN MAKANAN

    Directory of Open Access Journals (Sweden)

    Suryana Purawisastra

    2012-11-01

    Full Text Available THE NEUTRALIZE EXAMINATION OF THE SPICES REACTIVITY IN THE IODIZED SALT BY THE ADDITIVE OF THE FOOD ADDITIVES.Background: The potassiumiodate of the iodized salt in the mixture with some spices is bind in the form of the compounds, which are not available for the determination of the iodine by the chemical method. This is due to the reactivity of susbtances contained inspices, such as capsaicin in the chilli, and piperine in the paprika, which are responsible for the spiciness of the spices. Although ithasn't been studied, the configuration of the potassiumiodate in the spices is probably also not available for the human consumption. Where as the supplementation of iodized salt to recover the iodine deficiency is effective. The food additives mostly are the chemical substances, which have properties to keep or increase the quality of food.Objectives: The study was performed to investigate the effect of food additives to the reactivity of spices to the potassiumiodate of iodized salt.Material and Methods: The food additive was added to the iodized salt, and then mixed with the spice. Dissolved by the water incertain volume, filtered, and then determined the potassiumiodate content of the filtrate by the Yodometric method. The potassiumiodate content of the filtrate was compared with the potassiumiodate content of the salt. The result of percent comparisonis the recovery of potassiumiodate when mixed with food additive and spice. The recovery of potassiumiodate was done for the different potassiumiodate content of iodized salt. The study was using CaCO3, KH2P04, MgS04, Na2C03, NaHP04, K-citrate, benzoat acid, dan Na-benzoat as food additives, and the red chilli, hot chilli, pepper and coriander.Results: The reactivity of the pepper and coriander to the potassiumiodate of the iodized salt could be netralized by the addition of CaCO3, KH2P04, MgS04, Na2CO3, NaHP04, K-citrate, benzoic acid, dan Na-benzoic. But for the red chilli and hot chilli were not allof them, these were for CaC03 K-citrate, and benzoic acid. It was shown by the value of recovery of potassiumiodate contents of the iodized salt. The netralization properties of food addives were increased by the increasing of the potassiumiodate content of the iodized salt.Conclusions: The addition of some food additives into the iodized salt is able to prevent the iodate content of the salt from there activity of subtances in the spice. The addition of food additives also can pick up moisture of salt resulting preventation of the salt particles clumping together and so keep the product free flowing.Keywords: potassiumiodate, spices, iodized salt

  12. Karakterisasi Tepung Kasava Yang Dimodifikasi Dengan Bakteri Selulolitik Sebagai Bahan Baku Produk Mie Dan Biskuit

    OpenAIRE

    Sembiring, Simon Petrus

    2011-01-01

    The research was conducted to dertermine the characterization of modified starch cassava with cellulolytic bacteria as the raw materials of noodles and biscuits products. The study was conducted using single-factor randomized block design that is the number of cellulolytic bacteria (J) with 5 degree (J1:0 ml, J2:10 ml, J3:20 ml, J4:30 ml, J5:40 ml) and for the ratio of wheat with flour cassava flour(100:0, 90:10, 80:20, 70:30, 60:40). Product was parameters for the flour were the chemical pro...

  13. Kadar Bahan Organik Tanah pada Tanah Sawah dan Tegalan di Bali serta Hubungannya dengan Tekstur Tanah

    OpenAIRE

    AGUSTINA TANGKETASIK; NI MADE WIKARNITI; NI NENGAH SONIARI; I WAYAN NARKA

    2014-01-01

    Recently, the soil organic matter was exposed decrease rapidly. The intensive soil tillage andapplication anorganic fertilizer to suppose decrease soil organic matter. How low organic matter contentof paddy soil and uppland soil not yet were taken.Soil sample of paddy soil and upland soil were taken from regency in Bali. Number of soil samplewas 96 consisted of 48 soil samples from paddy soil and 48 from uppland soil. For each regency wastaken 4 - 5 soil samples with random sampling. Soil sam...

  14. Pembuatan Dan Karakterisasi Keramik Konstruksi Dengan Memanfaatkan Limbah Padat Pulp Dengan Bahan Baku Kaolin Surabaya

    OpenAIRE

    Simanjuntak, Rikardo

    2011-01-01

    Has been studied with the aim of pulp utilization of solid waste in the form of grit, dreg, and biosludge in the manufacture of ceramic construction with a variety of kaolin addition of 50 grams, 60 grams, 70 grams, 80 grams, 90 grams, and 100 grams. Sintering temperature at 900 0C and a ceramic sample is formed by die pressing at a pressure of 5000 kgf. From the experiments, the compressive strength results are: 38.96 MPa - 140.87 MPa. Hardness testing results are: 15.48 Mpa - 30.20 MPa MPa....

  15. Stabilitas Aspal Poros Menggunakan Pecahan Limbah Beton Pengganti Batu Pecah Dengan Bahan Pengikat Liquid Asbuton

    OpenAIRE

    Ikhwanul Muin, Muhammad

    2015-01-01

    Seiring dengan laju pertumbuhan penduduk, maka peranan sebuah jalan sangat penting sebagai prasarana perhubungan darat untuk kesinambungan distribusi barang dan jasa, serta sebagai faktor penunjang laju pertumbuhan ekonomi. Agar transportasi berjalan lancar, diperlukan sarana dan prasarana transportasi yang memadai. Kondisi fisik dari jalan seperti tingkat kekesatan aspal, genangan-genangan air di permukaan jalan, tingkat kebisingan jalan adalah hal penting dari segi keamanan dan kenyamanan p...

  16. Pemanfaatan Limbah Padat Pulp Grits Dan Dregs Dengan Penambahan Kaolin Sebagai Bahan Pembuatan Keramik Konstruksi

    OpenAIRE

    Fani Besprina Harefa

    2009-01-01

    Telah dilakukan penelitian dengan tujuan pemanfaatan limbah padat pulp grits dan dregs dalam pembuatan keramik konstruksi dengan variasi penambahan kaolin 0 %, 5%, 10%, 20%, 25%, 30%, 40% dan 50% (berat). Temperatur sintering pada 11000C dan sampel keramik dibentuk dengan cara dry pressing pada tekanan 5000kgf. Dari hasil pengujian diperoleh hasil kuat tekan yaitu: 23,90MPa – 96,28MPa. Hasil pengujian porositas yaitu: 37,40% - 44,80% dan hasil pengujian susut bakar yaitu: 1,55% - 23,56%. Hal ...

  17. Pembuatan Dan Karaktersisasi Keramik Konstruksi Dengan Memanfaatkan Limbah Padat Pulp Dengan Bahan Baku Bentonit.

    OpenAIRE

    Nadapdap, Rianto

    2011-01-01

    Preparation and Characterization of Ceramic construction with a variety of filler in the form of solid waste pulp dreg, grit, and the addition of raw materials biosludge Bentonite 50 grams, 60 grams, 70 grams, 80 grams, 90 grams and 100 grams. Performed at sintering temperature at 900 o C and ceramic sample is formed by dry pressing at a pressure of 5000 kgf. From the experiments, the results of compressive strength is: 34.448 MPa - 88.269 MPa. Hardness Test results are: 19.37 to 42.776 MPa. ...

  18. Kajian Performansi Mesin Genset Diesel Satu Silinder Dengan Bahan Bakar Campuran Solar Dan Serbuk Kulit Padi

    OpenAIRE

    Situmorang, Riky Stepanus

    2016-01-01

    Society 's dependence on fuel is very high . Besides, the scarcity of fuel and its prices also worsen the situation. Utilization of biomass as an alternative energy fuel mix is the right thing to save the use of fuel . Therefore , the authors conducted a test using a mixture of diesel fuel and biomass bran powder on Dong Fa generator set models R 175 A. The purpose of this study is to compare the performance of a diesel engine using diesel fuel and a mixture of bran powder so it will look it...

  19. Pengembangan Bahan Pembelajaran Pendidikan Moral dengan Metode Diskusi Dilema Moral pada Siswa SMU/SMK

    Directory of Open Access Journals (Sweden)

    Sihkabuden Sihkabuden

    2016-02-01

    Full Text Available The purposes of this study were to develop instructional materials on moral education including the teachers guide, and to develop tests fa-cilitating the implementation of moral dilemma discussion method to SMU/ SMK students; and to investigate the effectiveness of the method through experimental research design. The research results showed that the method had an effect on the process of moral instruction, especially in moral reasoning related to the moral judgement. It is suggested that moral education at SMU/SMK be conducted through moral dilemma discussion method.

  20. Pengaruh Media Tanam dan Panjang Slip Bahan Tanaman Terhadap Pembibitan Tanaman Vetiver (Vetiveria zizanoides (L.) Nash)

    OpenAIRE

    Naibaho, Gamelia Magdalena

    2015-01-01

    Vetiver have multiple uses for ecological dan phytoremediation needs, however the seedling planted still not received the attention, especially in plant media and length of tiller slip. Plant media that can be used to optimized root is mixing topsoil with high aeration media like sand, cocopeat, and sawdust. The objectives of this experiment were to determine the effect of plant media and the length of tiller slip on the growth of nursery vetiver (Vetiveria zizanoides (L.) Nash). This resear...

  1. Daya Antibakteri Bahan Tumpat Amalgam dan Resin Komposit Berfluor Terhadap Bakteri Streptococcus Mutans Serotipe KPSK2

    Directory of Open Access Journals (Sweden)

    Dewa Ayu Nyoman Putri Artiningsih

    2015-09-01

    Full Text Available This research was carried out to study the difference in the antibacterial capacity of two kinds of filling materials, namely amalgam and composite resin, on S. mutans KPSK2 bacteria with different times of treatment. In total, 48 amalgam and composite resin samples each were prepared and then divided into four groups of treatment. Of each group, 6 samples were used to count the number of bacterial colonies and 6 samples to count the right obstacle zone. The results show that the best antibacterial capacity of composite resin occurred within one week, while for amalgam the best performance appears within one day. The antibacterial capacity of fluorine containing composites is stronger than that of amalgam for a time of 1 to 2 weeks.

  2. Kajian Penanganan Bahan dan Metode Pengeringan terhadap Mutu Biji dan Minyak Jarak Pagar (Jatropha curcas L.

    Directory of Open Access Journals (Sweden)

    Verra Mellyana

    2012-10-01

    Full Text Available Energy is consumed in many sectors such as industry, transportation, and household. Most of the source of energy nowadays are obtained from fosil, which is predicted available for less than 10-15 upcoming years, and should be replaced by renewable energy. One of potential renewable energy to considered is Jatropha, a plant with seeds containing oil that can be processed into biodiesel. As a part of plant, fruit of Jatropha should be treated properly after harvest to maintain its oil in the seeds, so that good physical and chemical properties of the oil extracted from the seed can be obtained. This research is aim to develop method of handling of the harvested Jatropha fruits, including its drying, to maintain quality of the seeds and oil resulted from extraction. Different combinations of preparation (fresh, seed and steamed seed and drying (temperature of 50, 60, 70 oC and natural sun drying, have been investigated. The results showed that the best treatment was seed drying at 70 oC with the drying time of 4.83 hour, oil rate of 40.06%, and oil yield of 28.59%. Quality of the seeds which fulfilled Standard National Indonesia (SNI 01-1677-1989 were broken seed (0.57%, cracked seed (0.20 %, foreign object (0%, moisture content (6.08%. However, the highest oil extraction (40.06% was not satisfy SNI 01-1677-1989. This case, quality of castor oil which qualified SNI 01-1904-1990 were oil moisture content (0.23% and acid value (0.33 mg KOH/g, but refractive index (1.6209, iod number (54.31 and saponification number (67.30 were unqualified.

  3. Kajian Penanganan Bahan dan Metode Pengeringan terhadap Mutu Biji dan Minyak Jarak Pagar (Jatropha curcas L.)

    OpenAIRE

    Verra Mellyana; Usman Ahmad; Sri Widowati

    2012-01-01

    Energy is consumed in many sectors such as industry, transportation, and household. Most of the source of energy nowadays are obtained from fosil, which is predicted available for less than 10-15 upcoming years, and should be replaced by renewable energy. One of potential renewable energy to considered is Jatropha, a plant with seeds containing oil that can be processed into biodiesel. As a part of plant, fruit of Jatropha should be treated properly after harvest to maintain its oil in the se...

  4. Pengaruh Hidrogel Teripang Sebagai Bahan Medikamen Saluran Akar Terhadap Bakteri Enterococcus Faecalis (In Vitro)

    OpenAIRE

    Tarigan, Gita

    2016-01-01

    Hydrogel sea cucumber (Stichopus variegatus) is known to contain a variety of active ingredients which are very useful for human beings. Antibacterial activity of the hydrogel sea cucumber has become a source of new drugs can be developed because the potential is big with a high level of diversity and uniqueness of the new compounds were found in particular natural sea organisms. The purpose of this study is to determine the antibacterial activity of hydrogels cucumbers as medikamen the root ...

  5. Efek Antibakteri Sea Cucumber (Stichopus Variegatus) Terhadap Bakteri Enterococcus Faecalis Sebagai Bahan Medikamen Saluran Akar

    OpenAIRE

    Tarigan, Gita

    2013-01-01

    Endodontic treatment goal is to eliminate microorganisms and their by products from root canal so that the teeth can be maintained as long as possible in the mouth. Bacteria that normally survive in the root canal is of anaerobic bacteria group. One of this bacteria is Enterococcus faecalis which is most commonly found in failed root canal treatment case. Calcium hydroxide is mostly used medicament for interappointment root canal dressing during endodontic therapy. Sea Cucumber is one of the ...

  6. EVALUASI PENGENDALIAN INTERN TERHADAP SISTEM AKUNTANSI PEMBELIAN DAN PERSEDIAAN BAHAN BAKU PADA PT FUYINDO MULTI PERDANA

    Directory of Open Access Journals (Sweden)

    Vini Mariani

    2010-05-01

    run well and the management can give a decision based on the reports of evaluation results, it can be suggested that companies should do in the internal control system purchase accounting and inventory of raw materials

  7. Metode Irigasi Tetes dan Perlakuan Komposisi Bahan Organik dalam Budidaya Stroberi

    Directory of Open Access Journals (Sweden)

    Afik Hardanto

    2009-04-01

    Full Text Available Strawberry is a commercial fruit. It’s Growth and quality is influenced by soil condition, climate, and its self. Irrigation influences soil characteristic, such as: physical, chemical, and microbiological than influence an environment of its growth. this research used drip irrigation method with debit variation and organic matter composition. RCBD was used in this research. Variation of irrigation debit and organic matter composition are the independent variables, whereas dependent variables are C-Organic, N-available, characteristic of soil, and quality of strawberry fruit. Variation of debit irrigation did not significant influence to C-Organic, whereas organic matter composition had significant influence to C-Organic in 63th, 84th, and 105th day of planting. The highest C-Organic content on D3P3 treatment that is 17.92% and the lowest on D2P2 treatment that is 5.19%. Debit of irrigation influence to N-available content in 105th day of planting. The highest N-available content in D3P1 treatment that is 0.88 ppm, whereas the lowest N-available content in D2P3 treatment that is 0.67 ppm. Result of analysis, debit irrigation had significant influence and could increase fruit weight and reduction sugar-content. Organic matter composition had significant influence to increase fruit weight, vitamin C, total of soluble-solid, and reduction sugar-content. Combination of irrigation debit and organic matter composition had significant influence to fruit weight. In the treatment, debit of irrigation that make good influence to fruit quality is 300 ml/day/polybag and 1:2 ratio of organic matter composition.

  8. Pemanfaatan Serat Lidah Mertua (Agave Angustifolia Haw) dan Kulit Pisang Sebagai Bahan Baku Pembuatan Kertas

    OpenAIRE

    Zulniati

    2015-01-01

    Research on the use of Agave Angustifolia Haw Fiber and Banana Peels as Raw Material for Making Paper has been done. Pulping process was conducted with chemical alkali methods aiming to obtain an alternative raw material for paper and determine the influence of variations in the composition of a mixture of Agave Angustifolia Haw pulp and banana peels. Variations of the mixture, namely: (0 : 100)%; (20 : 80)%; (40 : 60)%; (60 : 40)%; (80 : 20)%; (100 : 0)%. Physical properties and mechanical t...

  9. Bahan pemutih gigi dengan sertifikat ADA/ISO (Tooth bleaching material with ADA/ISO certificate

    Directory of Open Access Journals (Sweden)

    Asti Meizarini

    2005-06-01

    Full Text Available Bleaching of teeth for cosmetic reasons is a popular aspect of cosmetic dentistry because patients realize the aesthetical benefits of these products. The dentist as a clinician's practitioner must be knowledgeable of the products and their application techniques. Bleaching materials which are safe and effective are the ADA accepted or manufactured by those which have already haved ISO certificate. Dentist must have enough knowledge about in-office bleaching prescribed for home-use bleaching including their contra indication and side effects, to advise the patients and provide effective bleaching services.

  10. PENGEMBANGAN BAHAN AJAR PENGETAHUAN LINGKUNGAN BERBASIS WEB UNTUK MENINGKATKAN MOTIVASI MAHASISWA IKIP BUDI UTOMO MALANG

    OpenAIRE

    irmawati, farizha; Oktaviana, Ika; Rahayu, Lia

    2016-01-01

     ABSTRACTThe development of rapid information technology makes learners freed in obtaining teaching materials. One of them is a web-based teaching materials. The purpose of the research is to produce a web-based teaching materials on the subjects of Environmental Sciences to enhance student motivation Budi Utomo Malang Teachers' Training College. Development of teaching materials based website using ADDIE models. Development research was conducted from April to December 2015. Based on the res...

  11. Kajian Pemanfaatan Biji Kopi (Arabika) Sebagai Bahan Baku Pembuatan Metil Ester

    OpenAIRE

    Simbolon, Bella

    2015-01-01

    This research aims to exploit the coffee seed oil as raw material for metyl ester by esterification process, then followed by transesterification process and studied the influence of variations in the weight ratio of solvent: ground coffee beans in the coffee bean oil extraction process. The methodologies of this research are conducted on the process of preparation of raw materials,extraction, and testing phase. Extraction is done with a variety of types of solvent n-hexane (C6H14) and toluen...

  12. Pemanfaatan Karet Ban Bekas (Ground Rubber) Dan Polistirena Bekas Sebagai Bahan Aditif Dalam Pembuatan Aspal Polimer

    OpenAIRE

    Ritonga, Ahmad Hafizullah

    2011-01-01

    The aims of this research is to utilise ground rubber, post consumer polystyrene as additives in modified asphalt polymers. Asphalt polymer was prepared by mixing ground rubber, post cunsumer polystyrene, sand aggregate, DCP, DVB, and processing in a extruder which temperature were fixed at 170 oC. The result of characterization showed that the most optimum variation of the asphalt mix ground rubber and post consumer polystyrene (5:35), which for mechanical testing, compressive strength of 2,...

  13. Penggunaan Minyak Nabati Sebagai Bahan Bakar Alternatif Pada Motor Diesel Sistim Injeksi Langsung

    OpenAIRE

    Ricky Winaya; Philip Kristanto

    2002-01-01

    Vegetable oil as an example product of agricultural engineering, has potential to be developed to renewable energy called bio-diesel. This paper describes comparison study performance from a direct injection system diesel-engine fueled with composition 20%, 30% and 40% bio-diesel, with diesel engine fueled diesel oil (solar). The test results have shown that the engine fueled with 20%, 30%, and 40% bio-diesel produce slightly lower torque and power than the same engine fueled with solar. The ...

  14. Pembuatan Nanokomposit Poliuretan Berbasis Minyak Kelapa Sawit Dengan Nanopartikel Montmorillonit Organik Sebagai Bahan Cat

    OpenAIRE

    Zaimahwati

    2016-01-01

    This research reports the manufacture of palm oil-based polyurethane nanocomposite with organic montmorillonite nanoparticle as paint coating. This research consists of five stages namely the manufacture of polyol, organic montmorillonite nanoparticle, properties and application of polyurethane nanocomposite as paint coating. Polyols are formed by reacting epoxides with palm oil-based oleic acid hydroxyl. Organic montmorillonite nanoparticle was made through intercalation process of montmoril...

  15. Pengunaan Surfaktan Polivinil Alkohol Sebagai Bahan Aditif Dalam Pembuatan Aspal Emulsi

    OpenAIRE

    Ramadani, Tri Sahputra

    2015-01-01

    It has been done the research about asphalt emulsion by using Surfactant Polyvinyl alcohol (PVA). Asphalt emultion can be made by mixing asphalt ratio variation, heated first at 1200C with water variation heated at temperature 550C, and then the Surfactant Polyvinyl alcohol variation added slowly and stirred with agiator for 5 minutes at maximum comparison of asphalt, water and Surfactant ratio (75:15:10). The use of Surfactant Polyvinyl alcohol as additives in asphalt emulsion mixture can ...

  16. Penggunaan Surfaktan Polivinil Alkohol (Pva) Sebagai Bahan Aditif Dalam Pembuatan Aspal Emulsi

    OpenAIRE

    Ramadani, Tri Sahputra

    2015-01-01

    It has been done the research about asphalt emulsion by using Surfactant Polyvinyl alcohol (PVA). Asphalt emultion can be made by mixing asphalt ratio variation, heated first at 1200C with water variation heated at temperature 550C, and then the Surfactant Polyvinyl alcohol variation added slowly and stirred with agiator for 5 minutes at maximum comparison of asphalt, water and Surfactant ratio (75:15:10). The use of Surfactant Polyvinyl alcohol as additives in asphalt emulsion mixture can ...

  17. Evaluasi Kinerja Tarik Traktor Tangan dengan Bahan Bakar Minyak Kelapa Murni

    Directory of Open Access Journals (Sweden)

    Desrial

    2010-04-01

    Full Text Available Past research shown that coconut oil can be used directly in Diesel engine by adding a heating element in the fuel delivery system. This study aims to evaluate the performance of a hand tractor pull using pure coconut oil fuel. The Diesel engine of the tractor was equipped with a fuel heater installed on the mufler. Traction performance parameters tested were wheel slippage, drawbar pull, forward speed and drawbar power on the path of concrete and soil. Besides, the tractor was also tested on plowing using a moldboard plow. The test results on the concrete track showed that the maximum drawbar pull was 1.21 kN generated at a speed of 0.92 m/s, with a maximum drawbar power of 1.21 kW at the wheel slip of 10.87%. While the drawbar pull on the soil track was 1.37 kN at a speed of 0.79 m/s, with a maximum value of 0.71 kW drawbar power when wheels slip 22.25%. The results of tillage test showed that field efficiency was 84.66%, which was not much different from the test result using Diesel fuel.

  18. Motivasi Belajar Mahasiswa terhadap Efektifitas Bahan Ajar Berbasis E-Learning untuk KPB 1 di STAINBatunsangkar

    Directory of Open Access Journals (Sweden)

    Isra Nurmai Yenti

    2014-03-01

    Full Text Available This article discusses university students’ learning motivation on the effectiveness of E-Learning Based material in the KPB 1 classes.  The research was conducted to see the effectiveness of E- learning material that had been developed in KPB 1 to deal with students’ learning motivation.  In this pre-experimental study, all third semester students of Mathematic Tadris registered in academic year of 2012-2013 served as sample.  Questionnaire on learning motivation was used to collect the data which was later analyzed through simple statistic. The research shows that students’ learning motivation was not successfully improved after the implementation of E-Learning material.  It suggests then that such material has not been effective in the KPB 1 learning.Copyright © 2014 by Al-Ta'lim All right reservedDOI: 10.15548/jt.v21i1.69

  19. Upaya Optimalisasi Penghematan Subsidi Bahan Bakar Minyak (BBM Agar Tepat Sasaran

    Directory of Open Access Journals (Sweden)

    Janita Sembiring Meliala

    2014-07-01

    Full Text Available Subsidized fuel consumption continues to increase from year to year also put pressure on the state budget so that it becomes increasingly severe. This is caused by the government's energy policy tends to be adaptive and short-term oriented (myopic, so the government pays little attention to aspects of long-term autonomy of the Indonesian economy. Subsidy in the 2011 budget amounted to 33.42% of the total expenditure budget, 86% subsidy is used for energy subsidies and 64.6% the largest share of subsidies. The biggest users of fuel subsidy, is land transportation, with the classification of private vehicles, so it can be said that the subsidy is not received by the appropriate require. Related to this, the challenges that must be faced is the obligation to make a breakthrough in order to encourage domestic savings in fuel consumption and diversification in the use of non-fuel energy sources. There are three policy options as an effort to optimize the fuel subsidy savings. First, restrictions on the use of the fuel subsidy program, unfortunately the prospects of success of this policy is not good considering unprepared infrastructure and the emerging moral hazard. Second, the increase in fuel prices, the authors recommend the price increase to Rp 2000, - taking into account the effects of inflation, and financial savings, for the welfare of the people. Third, the use of CNG and new products from the fuel, this policy option can be run in the long run because it requires a longer preparation in building infrastructure.

  20. Penelusuran Protein Bioaktif dalam Makro Alga Sebagai Bahan Antibakteri dan Antijamur

    OpenAIRE

    Ahyar, Ahmad

    2007-01-01

    A research on anti-microbial bioactivity of protein fraction isolated from several species of macro algae of baranglompo island in South Sulawesi by using polar solvent buffer of 0.1 M Tris-HCl with pH 8.3 containing 2 M NaCl 0.01 M CaCl2, 1% ??-mercaptoethanol, 0.5 % Triton X-100 has been conducted. The concentration of protein was determined by the lowry method and the bioactivity tes was investigated by a gel diffusion method. Results showed that the concentration of protein in the crude e...

  1. Pemesinan Laju Tinggi dan Pemesinan Kering Menggunakan Pahat Karbida pada Bahan Aluminium 6061

    Directory of Open Access Journals (Sweden)

    Bobby Umroh

    2013-01-01

    Full Text Available Research of high speed machining and dry machining use for the best cutting conditions on the roughness aluminum 6061 material surface using a carbide tool. Collection machining test data is performed 4 times trial with 3 main variable is the rate of cutting (V, Ingestion rate (f and depth of cut (a at three levels of scale. The best surface roughness conditions is determined by the rate of the cemetery, where the rate of feeding is recommended at f = 0.12 mm/rev or < 0:17 mm/rev. Effect of cutting force is inversely proportional to the value of rate of cuts. At the greater of the cutting force so the surface roughness also getting smaller. Depth of cut and rate cuts also affects on the surface roughness but not in any condition determined. At the lowest state with V = 1000 m/min f = 0:12 mm/rev and a = 1 mm, surface defects (surface defect. Possibly, this is caused by the vibration of the tool due to lack of dynamic balance in the cutting process.

  2. PENYUSUNAN DOKUMEN POTENSI BAHAN TAMBANG DI LUAR WILAYAH SUNGAI KABUPATEN PEKALONGAN

    Directory of Open Access Journals (Sweden)

    Najib Najib

    2012-02-01

    Full Text Available Besides in River area, Pekalongan Regency estimated has mineral potential in some areas outside of that area.Yet local government doesn’t have data about the potency of that mineral. In consequence, it is needed toconducts mapping of mineral potency outside of river circumstance that the result will be used by localgovernment either guide taking policy in exploitation or regulation to that activity. This research used somesteps i.e. measurement and mapping phase, analysis and data processing (hypothetic reserve calculation andlaboratory mineral tests such as AAS, petrography and shear strength and data compilation. The potency ofminerals and rocks is disseminated in 14 districts in Pekalongan Regency. Types of those mine materials areAndesite, Diorite, Limestone, Tras, Clay, Ochre, Gold and iron sand. Mining systems possibly conducted are PitType System, Eunuch Hill System and Cave System.

  3. PEMANFAATAN SEDIMEN PERAIRAN TERCEMAR SEBAGAI BAHAN LUMPUR AKTIF DALAM PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU

    Directory of Open Access Journals (Sweden)

    Ni Luh Gede Sudaryati

    2012-11-01

    Full Text Available Tofu industries are food industries which use a lot of water, both for operational system and as a basic material for production.Tofu industries produce liquid sewage which contains high organic subtances. Liquid sewage of tofu industries is one of the sources ofcontaminants, so that it is needed to have an appropriate waste processing. In order to overcome liquid sewage problem, a wasteprocessing is to reduce and eliminate dangerous materials and pathogenic microorganisms. Biological treatment is the commonest way inhandling the liquid waste from food industries. One of the biological processing that can reduce the contaminants content in liquidindustrial sewage is activated sludge. This activated sludge can also metabolize and break up the contaminants in the sewage and thisprocessing uses sludge.This research was carried out in order to know the growth rate of microbe biomass in activated sludge from 3 types of sludgetaken from the ditches of the tofu industries, the sludge taken from Pesanggaran Slaughterhouse and the sludge taken from Badung Riverwhich were composed into 4 compositions and then were seeded, than tested to get 4 sludge composition in order to reduce COD in tofuindustrial sewage. The parameters used were physical and chemical views. This research was done by measuring the changes in VSSvalue of the four sludge compositions which were seeded and the COD of the four tested sludge compositions.This research used factorial Randomized Completed sampling that consisting of 2 factors and three repetitions, that is the firstfactor was composition sludge and the second one ws incubation period and then were analyzed by using descriptive comprative analysisand uni –variant analysis.The result of this research shown that the best sludge composition used as activated sludge was the sludge composition takenfrom the ditches of tofu industries was 50 %, the sludge taken from Pesanggaran Slaughterhouse was 25% and the sludge taken fromBadung River was 25 % with had VSS of micobe biomass growth of 2265 mg/L and was able to reduce COD of tofu industrial liquidsewage up to 46.645 mg/L.

  4. Pengujian Mikroorganisme Selulolitik dan Bahan Organik dalam Upaya Konservasi Lahan Tembakau Deli

    OpenAIRE

    Siregar, Diapari

    2010-01-01

    Deli tobacco as sigar wrapper represents export commodity of Indonesia in Europe which can not be competed by other tobaccos. This tobacco can only well grow in Deli Area between River Wampu in Langkat and River Ular in Deli Serdang District of North Sumatra. Unfortunately nowadays this land has been suffered by degradation which influence to the decrease of deli tobacco production. These facts were caused by some factors among others due to the shortening of bero period, unsuitability of la...

  5. KARAKTERISTIK BEBERAPA JENIS HASIL HUTAN DI HUTAN PENDIDIKAN, UNIVERSITAS HASANUDDIN. BEROTENSI SEBAGAI BAHAN BAKU PAPAN PARTIKEL

    OpenAIRE

    Yunianti, Andi Detti; Suhasman; Saad, Sahriyanti

    2013-01-01

    Beberapa jenis hasil hutan yang potensial dari Hutan Pendidikan Unhas yaitu empat jenis kayu cepat tumbuh dan tiga jenis bamboo. Keempat jenis adalah Jabon ( Antochepalus cadamba ) , lento - lento ( Arthrophyllum dive rsifolium ) dan pulai ( Alstonia spp) serta tiga jenis bambu yaitu bambu tallang ( Schizostacyum barcahycladum ), bambu parring ( Gigantochloa ater ) dan bambu gading ( Bambusa vulgaris ) menjadi obyek peneliti...

  6. Karakteristik Beberapa Jenis Hasil Hutan di Hutan Pendidikan, Universitas Hasanuddin. Berotensi Sebagai Bahan Baku Papan Partikel

    OpenAIRE

    Yunianti, Andi Detty

    2013-01-01

    Beberapa jenis hasil hutan yang potensial dari Hutan Pendidikan Unhas yaitu empat jenis kayu cepat tumbuh dan tiga jenis bamboo. Keempat jenis adalah Jabon (Antochepalus cadamba), lento-lento (Arthrophyllum diversifolium) dan pulai (Alstonia spp) serta tiga jenis bambu yaitu bambu tallang (Schizostacyum barcahycladum), bambu parring (Gigantochloa ater) dan bambu gading (Bambusa vulgaris) menjadi obyek penelitian ini. Semua jenis akan dikembangkan sebagai papan partikel. Semua jenis diuji dan...

  7. Pemanfaatan Serat Bambu Sebagai Campuran Gipsum Untuk Pembuatan Profil Plafon Dengan Bahan Pengikat Lateks Akrilik

    OpenAIRE

    Paino

    2011-01-01

    Has conducted research and testing of gypsum to the profile by adding bamboo fiber rope Giaganto chlocapus) and acrylic latex binder. From the testing that has been conducted found that physical properties of materials (density) decreased in line with the addition of fiber. The maximum density of 2.07 gr/cm3 occur on the composition of gypsum: fibers: acrylic latex: 395:05: 100. Water uptake increased in line with the addition of bamboo fiber which maximum absorption occurs at 40.51% on the c...

  8. PENGEMBANGAN BAHAN AJAR FISIKA MATEMATIKA BERBASIS SELF REGULATED LEARNING SEBAGAI UPAYA PENINGKATAN KEMAMPUAN BELAJAR MANDIRI

    OpenAIRE

    Ellianawati -; S. Wahyuni

    2012-01-01

    Penelitian ini bertujuan untuk meningkatkan motivasi belajar Fisika Matematika dengan memberi keleluasaan kepada mahasiswa dalam memilih tipe belajar yang diminati agar dapat memacu mahasiswa mampu belajar secara mandiri. Model Self Regulated Learning (SRL) dipilih karena dinilai memuat uraian tugas dan kewajiban dosen dan mahasiswa untuk mencapai tujuan ini. Sampel penelitian ini adalah mahasiswa semester genap 2010/2011 yang mengambil mata kuliah Fisika Matematika 1. Berdasarkan hasil penel...

  9. Pemeriksaan Operasional Atas Sistem Pembelian Bahan Baku Untuk meningkatkan Efisiensi Dan Efektifitas Pada PT. PDM Indonesia

    OpenAIRE

    Safiera, Siti

    2011-01-01

    The objectives of the research is to know the effectiveness of operational audit for the raw material purchasing system. It is important in improving effectiveness and efficiency at companies. The object of this research is PT. PDM Indonesia, especially purchasing department. Data collection methods used were descriptive qualitative. The research is based on theoretical research that supports the operational audit for the raw material purchasing system performed by internal auditors in imp...

  10. Pengaruh Kitosan Sebagai Bahan Penyalut Pada Pupuk Npk Untuk Memperlambat Larut Dalam Air

    OpenAIRE

    Sinaga, Aulia Rahman

    2012-01-01

    NPK compound fertilizers given by plants Not all could be absorbed, while others are being degradated or leached by ground water so they will cause inefficient fertilizing and environmental pollution. Because of that problem, slow release fertilizer was needed. Slow-release NPK fertilizer nutrition was released gradually and continuously so that it could reduce nutrition losses by leaching. Chitosan is a biodegradable polymer compound and have abilty for coating. Therefore, on this research c...

  11. MODEL PERAMALAN KONSUMSI BAHAN BAKAR JENIS PREMIUM DI INDONESIA DENGAN REGRESI LINIER BERGANDA

    Directory of Open Access Journals (Sweden)

    Farizal

    2014-12-01

    Full Text Available Energy consumption forecasting, especially premium, is an integral part of energy management. Premium is a type of energy that receives government subsidy. Unfortunately, premium forecastings being performed have considerable high error resulting difficulties on reaching planned subsidy target and exploding the amount. In this study forecasting was conducted using multilinear regression (MLR method with ten candidate predictor variables. The result shows that only four variables which are inflation, selling price disparity between pertamanx and premium, economic growth rate, and the number of car, dictate premium consumption. Analsys on the MLR model indicates that the model has a considerable low error with the mean absolute percentage error (MAPE of 5.18%. The model has been used to predict 2013 primium consumption with 1.05% of error. The model predicted that 2013 premium consumption was 29.56 million kiloliter, while the reality was 29.26 million kiloliter.

  12. Prestasi Pahat Karbida Berlapis pada Operasi Frais Bebas Cemar Bahan Paduan Titanium

    OpenAIRE

    Armansyah GINTING

    2010-01-01

    From a serial of machining trials that carried out in this study, it was obtained that carbide tool (WC+Co) coated with (TiC/TiAlN/TiN) by PVD method could be used to dry mill titanium alloy Ti-6Al-2Sn-4Zr-2Mo-0.08Si (Ti- 6242S) up to cutting speed (V) of 150 m/min, feeding (f) of 0.15 mm/tooth, axial depth-of-cut (aa) of 2 mm, and radial depth-of-cut (ar) of 8.8 mm. This cutting condition, in particular cutting speed, is 2.5 times higher than the common cutting speed used for cutting titaniu...

  13. Penggunaan Sari Buah Rasberi (Rubus rosaefolius Smith) sebagai Bahan Pelembab dalam Sediaan Krim

    OpenAIRE

    Putri, Winda Karnelia

    2014-01-01

    Raspberries is fruit that rich in fiber and vitamins such as vitamin A, C, E and K. Vitamin A has shown to be effective in preventing, retarding, and restoring changes associated with the aging process, such as dry, scaly skin, photodamage, and the formation of wrinkles. The purpose of this study was to determine whether the raspberry juice can be formulated into a cream preparation with o/w emulsion type and to observed the capability of...

  14. Modifikasi dan Uji Kinerja Kompos Spiral dengan Bahan Bakar Minyak Jarak Pagar

    Directory of Open Access Journals (Sweden)

    Gatot S.A Fatah

    2013-01-01

    Full Text Available Energy crisis in Indonesia is still a problem that has not been fully resolved. Kerosene as the primary fuel for cooking, the price is very expensive (at Rp 8000.-/liter. Until now, the pressure cooker kerosene is still used by cake makers, bread, and noodle. By modifying the part of the cup rubbing alcohol and add a protective piping hot, the stove can be used with pressurized fuel Jatropha oil. Tobacco industry, ceramic and asphalt still use the stove. The purpose of this study is to obtain a prototype pressure cooker spiral type, fueled with jatropha oil by modifying the part of the reservoir cup rubbing alcohol, pipe and nozzle heat shield oil expenses. Modified pressure cooker and test performance using Jatropha oil is obtained as follows: the fuel consumption of 935 ml / hour; pre-heating 17 minutes; time required to boil 2 liters of water was 5 minutes; noise level of 83.3 dB and the reddish color of blue flame.

  15. Kajian Terhadap Faktor – Faktor Yang Mempengaruhi Subsidi Bahan Bakar Minyak (BBM) Indonesia

    OpenAIRE

    Putu Ari Mulyani; I Wayan Sudirman; Ni Nyoman Yuliarmi

    2015-01-01

    This study aims to find out and to analyze the factors that affecting the fuel subsidy (BBM) which written in the state budget. The data has been used in this study as follows secondary data obtained from the records and reports from various agencies such as statistic bureau (BPS), Ministry of Finance, Indonesia bank, the US. Energy Information Administration (EIA), the Ministry of Energy and Mineral Resources, Directorate General of oil and Gas, previous journals and the results of studies. ...

  16. Surat Elektronik sebagai Media Komunikasi Data pada Sistem Pemantauan Bahan Bakar pada Sistem Catu Daya BTS

    Directory of Open Access Journals (Sweden)

    Falconi Falconi

    2015-03-01

    Full Text Available Base Transceiver Station (BTS merupakan seperangkat radio komunikasi tetap yang digunakan dalam jaringan selular. Untuk mempertahankan kinerja perangkat BTS agar tetap dapat bekerja walaupun suplai catu daya dari PLN terhenti, pada beberapa lokasi BTS ditempatkan pembangkit listrik tenaga solar. Sehingga pada saat PLN mati, maka kebutuhan listrik BTS akan disuplai oleh pembangkit listrik tersebut. Karena lokasi BTS menyebar, diperlukan petugas yang banyak atau waktu yang lama untuk dapat melakukan pengecekan kondisi solar secara keseluruhan. Sehingga sewaktu-waktu pembangkit listrik tidak dapat bekerja saat  dibutuhkan  dikarenakan  solar  habis.  Sistem  pemantau kondisi solar pada sistem catu daya Base Transceiver Station (BTS merupakan sebuah sistem pemantau yang berfungsi melakukan pencatatan ketinggian level solar pada tangki secara periodik dan terus menerus. Ketinggian level solar dikonversi kedalam status normal, minor, mayor dan kritis. Status inilah yang akan disimpan ke dalam basis data yang ada pada computer server. Dengan adanya sistem pemantau ini, maka untuk mengetahui kondisi solar pada tangki sebuah stasiun BTS, seorang petugas pemeliharaana dapat melakukannya tanpa perlu lagi mendatangi lokasi BTS, tetapi cukup memantaunya dari aplikasi pada komputer klien. Sistem yang dibangun terdiri dari sensor ultrasonik PING yang bertugas mendeteksi level solar dan mengumpankan hasilnya ke mikrokontroler ATMEGA8535. Mikrokontroler bertugas untuk mengkonversi sinyal analog yang dihasilkan sensor kedalam bentuk sinyal digital untuk kemudian dikirim ke komputer server melalui komunikasi serial. Aplikasi yang ada pada komputer server akan menerima data tersebut dan menyimpannya pada basis data. Data-data tersebut sewaktu-waktu akan dipanggil kembali apabila ada permintaan dari komputer klien untuk kemudian di kirim melaui surat elektronik. Dari hasil pengujian yang dilakukan pada tangki solar yang dimiliki oleh PT. Berca Hardayaperkasa, diperoleh hasil bahwa keseluruhan sistem dapat berfungsi dengan baik sesuai rancangan.

  17. Surat Elektronik sebagai Media Komunikasi Data pada Sistem Pemantauan Bahan Bakar pada Sistem Catu Daya BTS

    OpenAIRE

    Falconi Falconi

    2015-01-01

    Base Transceiver Station (BTS) merupakan seperangkat radio komunikasi tetap yang digunakan dalam jaringan selular. Untuk mempertahankan kinerja perangkat BTS agar tetap dapat bekerja walaupun suplai catu daya dari PLN terhenti, pada beberapa lokasi BTS ditempatkan pembangkit listrik tenaga solar. Sehingga pada saat PLN mati, maka kebutuhan listrik BTS akan disuplai oleh pembangkit listrik tersebut. Karena lokasi BTS menyebar, diperlukan petugas yang banyak atau waktu yang lama untuk dapat mel...

  18. Pengujian Kinerja Campuran (AC-WC) Subtitusi Buton Granular Aspal Sebagai Bahan Pengikat Dengan Metode Marshall

    OpenAIRE

    Mantong, Mentari C.P.

    2014-01-01

    Along with improvement and development keeping of road infrastructure in Indonesia, it is important to be more far comprehends and does testing to exploiting of nature material. Development of the existing firm layer material technology is very fast, to create technological innovation motivated to efficient cost, optimize of material exploiting, expansion of natural material, and environmental friendliness like BGA (Buton Granular Asphalt) as a binder along with asphalt at mixture AC-WC. Expl...

  19. PENGEMBANGAN BAHAN AJAR FISIKA MATEMATIKA BERBASIS SELF REGULATED LEARNING SEBAGAI UPAYA PENINGKATAN KEMAMPUAN BELAJAR MANDIRI

    Directory of Open Access Journals (Sweden)

    Ellianawati -

    2012-05-01

    Full Text Available Penelitian ini bertujuan untuk meningkatkan motivasi belajar Fisika Matematika dengan memberi keleluasaan kepada mahasiswa dalam memilih tipe belajar yang diminati agar dapat memacu mahasiswa mampu belajar secara mandiri. Model Self Regulated Learning (SRL dipilih karena dinilai memuat uraian tugas dan kewajiban dosen dan mahasiswa untuk mencapai tujuan ini. Sampel penelitian ini adalah mahasiswa semester genap 2010/2011 yang mengambil mata kuliah Fisika Matematika 1. Berdasarkan hasil penelitian yang menggunakan metode penelitian research and development ini menunjukkan adanya peningkatan pemahaman dan capaian prestasi belajar yang cukup signifikan. Peningkatan persepsi diri mahasiswa tentang pemahaman materi Fisika Matematika 1 serta capaian rata-rata yang masuk dalam kategori B menggambarkan keefektifan metode ini. Masih ada beberapa mahasiswa yang perlu mendapatkan perhatian dengan perbaikan yang berkelanjutan baik dari segi konten, sajian, maupun proses pembelajaran.The research aimed to increase the students’ motivation in learning Mathematical Physics by choosing their own type of study in order to challenge them to study autonomy. Self Regulated Learning (SRL model is chosen since the model provides the role for teacher and learner to reach the learning goal. This research has been done to the students who taken Mathematical Physics 1 in even semester of academic year of 2010/2011. Based on the result using research and development methodology, it can be concluded that there is a quite significant gain of students’ understanding of Mathematical Physics 1 concepts. The increase of students’ self perception of material understanding of Mathematical Physics 1 and the average of achievement categorized as B shows the effectiveness of the method.  There are some students who still need to be concerned by continuing their improvement in learning content as well as the learning process.

  20. Kombinasi Minyak Jagung (Oleum Maydis) Dan Minyak Jarak (Oleum Ricini) Sebagai Bahan Dasar Lipstik

    OpenAIRE

    Suriawati

    2015-01-01

    Seed Corn oil (Oleum maydis) was oil that obtained by extracting the corn seed. Corn oil was rich of colories, which was about 250 calories/100 grams, was a stable oil (resistant to rancidity) because of α-tocopherols are dissolved in oil, other than that corn oil contains essential fatty acids (Omega 3 and Omega 6), and vitamin E. Castor oil was a fatty oil that obtained from cold-pressed pleed seed of Ricinus communis L. Having a very high viscosity, it can delay the insoluble pigment m...

  1. PERPADUAN ANTARA PROPELLER DAN DAUN KEMUDI GUNA MENGOPTIMALKAN PROLPULSI DAN MANUVER KAPAL SERTA EFFISIENSI BAHAN BAKAR

    Directory of Open Access Journals (Sweden)

    Mohd Ridwan

    2012-03-01

    Full Text Available Operational of ship influences the running cost. A old ship, day by day cash cost are higher with ageing machinery requiring constant maintenance, a rusty hull requiring regular steel replacement and high fuel oil consumption. Fuel cost are 30-45 % all of running cost. with integrated between propeller and rudder to optimum ship propulsion and manoeuvering to reduce 4-9% vessel’s fuel oil consumption and energy efficiency

  2. Identifikasi Bahan Kimia Obat Sildenafil Sitrat Dalam Jamu Kuat Secara KLT-Spektrofotometri

    OpenAIRE

    Aritonang, Jessi Octavia

    2015-01-01

    Nowadays there are several manufacturers of herbal medicine known that adding synthetic chemicals in their medicinal products. This is probably due to lack of knowledge of the dangers of consuming manufacturers of chemicals is not well controlled drug dosage and how to use them or even merely to increase sales because consumers like the products of traditional medicine that reacts quickly to the body. As with powerful herbs are often added there to Sildenafil citrate Medicinal Chemicals. dent...

  3. Evaluasi Pengaruh Penggunaan Bahan Pengganti Telur (Egg Replacer) Pada Pembuatan Cake

    OpenAIRE

    Dewi, Nova Sarifah

    2015-01-01

    Nowdays many people are allergic to egg either the white or the egg yolk, that is why the research way conducted. The research was aimed to evaluate the functional characteristics and sensory quality of cakes made of soy protein isolate, whey protein isolate, corn starch, guar gum, xanthan gum and whole egg powder. The research had been performed using a non factorial completely randomized design with 7 levels and 3 repetition. The egg replacer composition were E1 = whey protein isolate (18,...

  4. Penggunaan Pati Jagung Gelatinasi Sebagai Bahan Pengikat Pada Formulasi Tablet Allopurinol

    OpenAIRE

    Arisandi, Deri

    2015-01-01

    Background: One source of starch is corn. Starch which has been experiencing gelatinized can form a paste or granules that have been swelled. In hot conditions the paste still has the ability to flow is flexible and not rigid. Based on the researchers a study using corn starch gelatinized as binder in wet granulation and as model drug is allopurinol. Objective: This research was aim to find out the gelatinized corn starch as binder and determine the best concentration on allopurinol table...

  5. PENGEMBANGAN BAHAN AJAR KETERAMPILAN BERBICARA BAHASA JEPANG BERORIENTASI BUDAYA MATA KULIAH KAIWA TINGKAT MENENGAH

    Directory of Open Access Journals (Sweden)

    Sri Wahyu Widiati

    2015-10-01

    DEVELOPING A CULTURE-ORIENTED JAPANESE LANGUAGE LEARNING MATERIALS FOR SPEAKING SKILL OF INTERMEDIATE KAIWA LESSON Abstract This study aims to: (1 develop appropriate learning materials for intermediate Japanese Language speaking skill by adapting Japanese and Indonesian culture themes, which integrate four language skills focusing on the speaking skill; (2 reveal the properness level of the learning materials. This is a research and development study. The steps of conducting the study were (1 collecting the data on needs analysis, (2 planning, (3 developing the product, (4 validating (expert judgment, preliminary field testing, main field testing and revising, (5 writing the final draft of the learning materials. The learning materials consist of five units accompanied with a VCD. The result of the expert judgment shows that the material is in the average score of 4.76 which is in the very good category. The result of the expert judgment on the media is in the average score of 4.31 which is in the very good category. The conclusion of this study is that the learning materials are appropriate to be implemented in the learning activities. Keywords: culture-oriented learning materials, speaking skills, kaiwa, intermediate Japanese language

  6. PEMANFAATAN LIMBAH PLASTIK SEBAGAI ALTERNATIF BAHAN PELAPIS (UPHOLSTERY) PADA PRODUK INTERIOR

    OpenAIRE

    Yunida Sofiana

    2010-01-01

    Environment pollution which is caused by garbage, especially plastic products, is one undeniable thing nowadays. Environment pollution by non-degradable materials could be decreased in 3Rs that are recycling, reusing, reducing. Recycle method is one of creative methods; the plastic waste could be recycled into matting materials that substitute natural material (pandanus) and also to be alternative upholstery in interior products. Plastic waste treatment process until disposable is easier than...

  7. PEMANFAATAN LIMBAH PLASTIK SEBAGAI ALTERNATIF BAHAN PELAPIS (UPHOLSTERY PADA PRODUK INTERIOR

    Directory of Open Access Journals (Sweden)

    Yunida Sofiana

    2010-09-01

    Full Text Available Environment pollution which is caused by garbage, especially plastic products, is one undeniable thing nowadays. Environment pollution by non-degradable materials could be decreased in 3Rs that are recycling, reusing, reducing. Recycle method is one of creative methods; the plastic waste could be recycled into matting materials that substitute natural material (pandanus and also to be alternative upholstery in interior products. Plastic waste treatment process until disposable is easier than natural material which has to go through several stages like drying and staining. What could be gained from pandanus could also be gained from plastic waste, so there are many things probable products could be designed. The product image is assumed to be modern, one trend nowadays.

  8. Modifikasi Permukaan Serbuk Pulp Tandan Kosong Sawit Dengan Anhidrida Asetat Sebagai Bahan Pengisi Polipropelina

    OpenAIRE

    Vivi Purwandari

    2008-01-01

    Empty fruit bunches of oil palm is a waste of oil palm industries that contain high celluloid fibers as raw material for pulp production. On the other hand, cellulose fibers have been used as fillers to improve mechanical properties of polypropylene matrix. However, there is polarity difference between the cellulose fillers and the polymer matrix so a compatibilizer is needed to decrease the polarity of cellulose filler. This can be done by chemical modification of the filler surface such as ...

  9. Pemanfaatan Tandan Kosong Kelapa Sawit Dengan Perekat Polipropilena Hasil Daur Ulang Sebagai Bahan Papan Partikel

    OpenAIRE

    Pangaribuan, Sahat Hamonangan

    2011-01-01

    The research on utilization of empty fruit bunches palm oil with recycled polypropylene binder as particle board material has been conducted. The structure of this empty fruit bunches palm oil’s fiber is organizet in random order. The fiber of empty fruit bunches palm oil is a disposal from the palm oil manufacture where as recycled polypropylene plastic is a waste obtained from household excess that is mostly in the form of mineral bottled water in which very potential to be used as composi...

  10. Pemanfaatan Biji Buah Nyamplung (Callophylum Inophylum Sebagai Bahan Baku Pembuatan Biodisel

    Directory of Open Access Journals (Sweden)

    Bayu Biru Chandra

    2013-03-01

    Full Text Available Indonesia merupakan negara kepulauan dengan garis pantai terpanjang keempat di dunia. Sepanjang sekitar 95000 Km merupakan habitat penting bagi vegetasi mangrove dan biota nya. Sebuah survei tahun 2007 menunjukkan bahwa 20% dari garis pantai rusak, dan tanah aktif terancam oleh erosi. Reboisasi penanaman vegetasi pantai dilakukan oleh pemerintah daerah. Salah satunya adalah Calophyllum Inophyllum. Potensi penggunaan benih C.Inophyllum tidak jelas sampai sekarang. Oleh karena itu, komposisi dan analisia C. Inophyllum dan minyak akan diselidiki. Dari hasil, ditemukan bahwa biji buah C. inophyllum mengandung lemak kasar (63,1%, serat kasar (16,64%, abu (3,22%, protein (3,42%, kelembaban (4,15%, dan ekstrak nitrogen bebas (13.62%. Itu juga memiliki nilai kalori 6092 kal / g. Its lipid asam lemak bebas yang terkandung (8,23%, monogliserida (3,93%, digliserida (3,37%, trigliserida (81.06% dan bioactive (3,4%.

  11. TEPUNG PUPA-MULBERRY (PURY SEBAGAI BAHAN PANGAN ALTERNATIF KAYA GIZI

    Directory of Open Access Journals (Sweden)

    Trina Astuti

    2012-03-01

    Full Text Available 800x600 Normal 0 false false false IN X-NONE X-NONE MicrosoftInternetExplorer4 st1\\:*{behavior:url(#ieooui } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";} Silkworm pupae is immature stage of moth.  It is inner part of the silkworm cocoon shell which usually disposed from yarn silk production, and now has become a valuable ingredient of human food in many countries, however it is not common yet in Indonesia. The purpose of study is to develop a weaning food as nutritious basic formula of complementary food from pupae waste. A silkworm pupae was a major constituents used as materials. There are sixth  steps to get PURY properly: select a fresh, fine and clean pupae, steamed well about 10 seconds, grinded and sifted it  to get liquid, added 10% maize powder, dried in oven at 60ºC for 6 hours, and refine on blender. A fine powder, so called “PURY”, has a well balanced amount of moisture, protein, fat included PUFA, carbohydrate, amino acids, vitamins and minerals. Through a simple processing, the dry product of fine PURY powder can be obtained and used as a basic formula of complementary food and snacks and has made great contribution to reduce pupae waste. Research is continued to scale up producing PURY based product for more food-technological uses in order to reduce prevalence of malnutrition in Indonesia. Keywords: silkworm, pupae waste, PURY, complementary food, malnutrition

  12. UJI BIOKOMPATIBILITAS KOMPOSIT POLIVINIL ALKOHOLHIDROKSIAPATIT DENGAN PENGUAT CATGUT SEBAGAI BAHAN PENYAMBUNG PATAH TULANG

    OpenAIRE

    M. Taha Ma’ruf, Widowati Siswomihardjo, Marsetyawan HNE Alva Edy Tontowi

    2013-01-01

    Bone fracture fixation devices have been using rigid metallic materials such as titanium, titanium-alloy or cobalt chrome. Besides having some advantages, the titanium fixation devices also have disadvantages, such as too high strength and stiffness. This continuously stimulates the bone, causing bone atrophy under the plate, further disrupting the growth of bones, especially in children. Other deficiencies of this metal material is its sensitivity to temperature changes and the spread of met...

  13. Evaluación de mezclas biodiésel-diésel en la generación de energía eléctrica

    Directory of Open Access Journals (Sweden)

    Andrés Rojas-González

    2011-10-01

    Full Text Available This article shows the effect of three different biodiesel blended with diesel on the operation of an electric power plant by simulating power consumption in a small house. Three different loads were tested in the plant in order to evaluate specific fuel consumption (SFC, and gaseous emissions (CO, CO2, O2 and others gases. It used castor oil biodiesel (CO, as well as frying oil (UFO and palm oil (P, mixed up with diesel in a ratio of 1:4 (B20, in binary and tertiary blends of biodiesel. It was found that the SFC of the motor is directly proportional to the load it receives, while the internal combustion engine is independent from the load imposed on the power plant. Nevertheless, it depends on the kind of fuel used. The mix of fuels that was able to minimize the SFC and the gaseous mixture was D80/ P10/UFO10.

  14. "El sector de la economía laboral en Costa Rica (S.E.L." (The labour economy sector in Costa Rica (S.E.L.

    Directory of Open Access Journals (Sweden)

    Francisco Morales Hernández

    2012-01-01

    Full Text Available : The author analyses the evolution of cooperatives in Costa Rica during the last 60 years. Their evolution, impact on the country’s economy, how their democratic way of operating is mirrored in Costa Rican society, etc. are subjects examined in this article.

  15. DISTRIBUSI ALIRAN DALAM REAKTOR BERKANAL MIKRO

    Directory of Open Access Journals (Sweden)

    Y. W. Budhi

    2012-01-01

    Full Text Available Reaktor mikro telah menempatkan diri pada posisi yang diminati dalam pengembangan teknologi reaktor modern yang memiliki karakteristik pokok dalam hal percepatan laju perpindahan massa dan panas yang berlipat ganda. Dengan dimensi yang berskala mikron, distribusi aliran dari pipa induk menuju masing-masing kanal merupakan salah satu persoalan penting untuk menjamin keseragaman aliran di setiap kanal. Makalah ini mengkaji distribusi aliran dalam lima model reaktor dan mempelajari karakteristik pemanasan awal dari keadaan dingin (cold start. Fokus ditujukan dalam shift converter yang mengkonversikan CO menjadi CO2 agar tidak meracuni katalis dalam sel bahan bakar. Selanjutnya pada model reaktor dengan distribusi terbaik, karakteristik cold start up ditelaah lebih mendalam melalui teknik reaksi kimia tak tunak. Hasil studi menunjukkan bahwa start up pada shift converter dapat dilakukan dalam waktu yang sangat singkat yang menunjukkan bahwa secara praktis unit reaktor mikro ini dapat diterapkan.

  16. Pengaruh Penambahan Ekstrak Etanol Beras Ketan Hitam (Oryza sativa.var. glutinosa (Lour) Korn) terhadap Nilai SPF Krim Tabir Surya Kombinasi Avobenzone dan Oktil Metoksisinamat secara In Vitro

    OpenAIRE

    Darmawati, Dewi

    2016-01-01

    Background: The sun has a very important role for the sustainability of life, but the sun can has an impact that is not good on the skin, especially if the number of excessive presentation, such as skin color becomes darker, erythema, sunburn, to skin cancer. To protect the skin from the adverse effects, one of them with the use of sunscreen cream. Black sticky rice (Oryza sativa Linn.var. glutinosa (Lour) Korn) has a pigment called anthocyanin which is a group of flavonoids that act as antio...

  17. Uji Performansi Mesin Pendingin Siklus Adsorpsi Bertenaga Surya dengan Luas Kolektor 1 m2 Kemiringan 30o Menggunakan Karbon Aktif -Metanol Sebagai Pasangan Adsorben-Adsorbat

    OpenAIRE

    Harefa, Piter

    2016-01-01

    Indonesia is blessed with abundant solar energy in whole year. According to white book energy of Indonesia, the average irradiance which incidents in Indonesia about 4.8 kWh/m2/day. That solar energy using as a main energy source at adsorption cycle refrigeration machine to produce cooling effect. In this research, the main components of machine consists of collector/absorber, condenser and evaporator. The collector/absorber has a surface area of 1 m2 and set-up with an inclination of 30o. Co...

  18. Perencanaan Sistem Jaringan Mikro (Microgrid) Dengan Supply dari Pembangkit Listrik Tenaga Surya (PLTS) dan Generator Set di Jurusan Teknik Elektro Universitas Udayana

    OpenAIRE

    I. P. Krisna Darma Putra; I. A. Dwi Giriantari; I W. Arta Wijaya

    2015-01-01

    Network design Micro Electrical Engineering  Department of the University of Udayana aims to harness solar power contained in the Department of Electrical Engineering are still stand alone system, namely, its use is still limited area of internet corner, has not been used as one of the suppliers of electrical power for the building - a building in the Department of Electrical Engineering. Based on simulation results show PLTS only able to serve load in an on-grid of 0.66% of t...

  19. Perencanaan Sistem Jaringan Mikro (Microgrid Dengan Supply dari Pembangkit Listrik Tenaga Surya (PLTS dan Generator Set di Jurusan Teknik Elektro Universitas Udayana

    Directory of Open Access Journals (Sweden)

    I. P. Krisna Darma Putra

    2015-12-01

    Full Text Available Network design Micro Electrical Engineering  Department of the University of Udayana aims to harness solar power contained in the Department of Electrical Engineering are still stand alone system, namely, its use is still limited area of internet corner, has not been used as one of the suppliers of electrical power for the building - a building in the Department of Electrical Engineering. Based on simulation results show PLTS only able to serve load in an on-grid of 0.66% of the total production of electrical energy generated while the condition of the off-grid solar power can only serve load building DJs and building DH (load lighting and socket at 3:21% and generator sets were installed in the Department of Electrical Engineering serve at 96.79%. Solar power capacity to be installed to meet the entire load of the building in the Department of Electrical Engineering is equal to the number of 211.814 Watt PV Module is needed as much as 26.267 pieces. This amount is influenced by the size of the capacity and efficiency of PV Module installed at this time.

  20. Perencanaan Sistem Penerangan Jalan Umum Dan Taman Di Areal Kampus Usu Dengan Menggunakan Teknologi Tenaga Surya (Aplikasi Pendopo Dan Lapangan Parkir)

    OpenAIRE

    Sihombing, Donny T B

    2015-01-01

    Sistem penerangan jalan umum adalah pelayanan yang menerangi jalan umum dimana penerangan ini lampu hanya dinyalakan pada malam hari, penerangan jalan umum menggunakan lampu merkuri dan memakan daya yang besar dalam menerangi jalanan selama malam hari hingga waktu menjelang pagi, sehingga tidak efisien dalam penggunaan daya. Pemanfaatan energi matahari merupakan satu diantara sumber energi yang dapat dimanfaatkan untuk penerangan jalan di perkotaan maupun pedesaan. Lampu penerangan jalan ...

  1. PERENCANAAN SISTEM JARINGAN MIKRO (MICROGRID DENGAN SUPPLY DARI PEMBANGKIT LISTRIK TENAGA SURYA (PLTS DAN GENERATOR SET DI JURUSAN TEKNIK ELEKTRO UNIVERSITAS UDAYANA

    Directory of Open Access Journals (Sweden)

    I. P. Krisna Darma Putra

    2016-02-01

    Full Text Available Network design Micro Electrical Engineering Department of the University of Udayana aims to harness solar power contained in the Department of Electrical Engineering are still stand alone system, namely, its use is still limited area of internet corner, has not been used as one of the suppliers of electrical power for the building - a building in the Department of Electrical Engineering. Based on simulation results show PLTS only able to serve load in an on-grid of 0.66% of the total production of electrical energy generated while the condition of the off-grid solar power can only serve load building DJs and building DH (load lighting and socket at 3:21% and generator sets were installed in the Department of Electrical Engineering serve at 96.79%. Solar power capacity to be installed to meet the entire load of the building in the Department of Electrical Engineering is equal to the number of 211.814 Watt PV Module is needed as much as 26.267 pieces. This amount is influenced by the size of the capacity and efficiency of PV Module installed at this time.

  2. Pengaruh Konsentrasi Ekstrak Etanol Bunga Brokoli (Brassica oleracea L.) Terhadap Nilai Sun Protection Factor Krim Tabir Surya Kombinasi Avobenzone dan Oktil Metoksisinamat Secara in Vitro

    OpenAIRE

    Rahmatulliza, Nova

    2016-01-01

    Background: Sunscreen is a cosmetic preparation, that is used on the surface of skin that works by absorbing, scattering or reflecting UV light. Broccoli flowers contain flavonoids which can absorb UV rays and have a high antioxidant activity. Purpose: To determine the formulation of ethanol extract of broccoli flowers, physical stability, the effect of ethanol extract concentration of broccoli flowers (Brassica oleracea L.) on sun protection factor (SPF) value of avobenzone and octyl methoxy...

  3. Sõrve metsakorraldus Saaremaal = Die Forsteinrichtung Sworbes (Sõrve) in Ösel (Saaremaa) / Toivo Meikar ; EPMÜ metsandusteaduskond

    Index Scriptorium Estoniae

    Meikar, Toivo, 1947-

    1998-01-01

    Lisatud: Protokoll Sõrve riigimetsades rakendatud metsakorralduse ja metsakasutuses kehtestavate määruste kohta (koostatud aastal 1796), lk. 25-35 ; Protocoll über die in den publ[iken]Sworbeschen Wäldern getroffene Forst-Einrichtungen und die zur Forst-Nutzung festzusetzende Anordnungen (geführt im Jahre 1796)

  4. Täna öösel me ei maga / Andrus Villem

    Index Scriptorium Estoniae

    Villem, Andrus

    2004-01-01

    Ilmunud ka: Nädaline, 4. märts 2004, lk. 4; Meie Maa, 4. märts 2004, lk. 2; Sakala, 5. märts 2004, lk. 2; Elva Postipoiss, 6. märts 2004, lk. 4; Koit, 6. märts 2004, lk. 6; Vooremaa, 6. märts 2004, lk. 2; Harjumaa, 9. märts 2004, lk. 2; Valgamaalane, 13. märts 2004, lk. 2; Pärnu Postimees, 19. märts 2004, lk. 11. Arutlus poliitikuks olemise üle. Carmen Kassi poliitikasse pürgimisse

  5. PENGARUH JENIS ANODA PADA PROSES PEMULIHAN LOGAM NIKEL DARI TIRUAN AIR LIMBAH ELECTROPLATING MENGGUNAKAN SEL ELEKTRODEPOSISI

    OpenAIRE

    Djaenudin Dhaenudin; Mindriany Syafila; Edwan Kardena; Isdiriayani Nurdin

    2013-01-01

    EFFECT OF ANODES TYPES ON NICKEL RECOVERY FROM SYNTHETIC ELECTROPLATING WASTE ELECTRODEPOSITION CELLS. A study concerning the recovery of nickel from electroplating wastewater artificial solution. The study was conducted with a batch system using electrodeposition cell consisting of two spaces separated by water hyacinth leaf, copper cathode plate, H2SO4 solution anolyte, catholyte solution of NiSO4 plus NaCl supporting electrolyte and anode varied. Electrodeposition performed at the direct c...

  6. Loomad räägivad sel korral eesti keeles / Jaanus Noormets

    Index Scriptorium Estoniae

    Noormets, Jaanus

    2008-01-01

    Arvutiga animeeritud USA koguperefilmist "Madagaskar 2" (Madagascar: Escape 2 Africa), mis jõuab Eesti kinodesse erinevalt filmisarja esimesest osast eesti keelde dubleerituna (loomtegelastele on oma hääle laenanud Karol Kuntsel, Andero Ermel, Evelin Pang, Mait Malmsten, Raivo E. Tamm, Andrus Vaarik jt)

  7. Hubungan antara pH Susu dengan Jumlah Sel Somatik Sebagai Parameter Mastitis Subklinik

    Directory of Open Access Journals (Sweden)

    M. Sudarwanto

    2008-08-01

    Full Text Available The aim of this research was to measure the relationship of the pH value to the somatic cell count as a parameter of sub clinical mastitis detection. Two hundreds quarter milk samples were used in this research and the test (the pH value, IPB-1 mastitis test and Breed method was done in parallel way. The results showed that 152 samples from 200 samples (76% tested with Breed method came from the herds which suffered from sub-clinical mastitis and with IPB-1 test showed that 145 (72.5% of the samples had positive reaction. Using pH meter, it showed that 44 samples (22 % had pH > 6.75, presumed suffered from sub-clinical mastitis and 2 samples (1% showed pH < 6.30 (6.25 and 6.28. At the same time, these two samples showed a negative reaction with IPB-1 test and had somatic cell count of 360,000/ml and 280,000/ml, each. It also showed that there was a close relationship between pH value and IPB-1 test. The conclusion of this research was that the measurement of pH value was not a sensitive method for detecting sub-clinical mastitis.

  8. Tootjad prognoosivad sel aastal suvetoodetele 30% müügikasvu / Eda-Liis Kann

    Index Scriptorium Estoniae

    Kann, Eda-Liis, 1979-

    2004-01-01

    Rakvere Lihatööstuse, AS-i Wõro Kommerts, Valga Lihatööstuse ning AS-i Tallegg müügiprognoosid. Kommenteerib Kristel Kindsigo. Lisa: Suurimat kasvu ootab Filee LT. Vt. samas: Kanaliha tarbimine on kahekordistunud

  9. BİR YÖNETİM YAKLAŞIMI OLARAK İÇSEL PAZARLAMA

    OpenAIRE

    İNAL, Doç. Dr. M. Emin; TOKSARI, Arş. Gör. Murat

    2008-01-01

    Günümüzde işletmeler, yoğun rekabet ortamında faaliyetlerini sürdürmektedir. İşletmelerin faaliyetlerini rekabet avantajı yaratacak biçimde sürdürebilmelerin de, işletme çalışanlarının çabalan, en önemli unsurlardan birisidir. Bu anlayış doğrultusunda, işletmeler dış müşterilerinin yanı sıra kendi çalışanlarını da müşteri -iç müşteri- olarak kabul etmeye başlamışlardır. Dış müşterilerin istek ve gereksinimlerinin karşılanabilmesinin yolu, iç müşterilerin istek ve gereksinimlerinin tatmininden...

  10. Kas sel aastal ikka näeb Valget Daami / Anneli Ammas

    Index Scriptorium Estoniae

    Ammas, Anneli, 1962-

    2001-01-01

    Kaarel Kilveti, Paul Kilgase ja Juhan Saare stsenaarium "Legend Haapsalu Valgest Daamist", lavastaja Kaarel Kilvet. Esietendus 3. aug. Haapsalu piiskopilinnuses, esitab Harrastusteater Randlane, kaastegevad ka professionaalsed näitlejad

  11. Peran p53 Sebagai Jalur Kritis pada Mekanisme Kontrol Siklus Sel Sebagai Pencegah Terjadinya Kanker Mulut

    Directory of Open Access Journals (Sweden)

    Herlia Nur Istindiah

    2015-09-01

    Full Text Available In cell cycle control, p53 acts as an emergency brake, where its important checkpoint function is to maintain the genome integrity by preventing the formation and proliferation of mutant cells. P53 activity is increased by DNA damage occurs caused by agents (such as radioation, UV light or drugs or oncogenes. Mdm2 protein can inhibit the p53 activation, but oncogenes can inhibit Mdm2 or activate p53. If DNA damage occurs, then p53 prevents the cells from replicating their DNA by arresting the cell cycle, so that the cells can repair the damage. Alternatively, p53 instructs the cells to undergo apoptosis by inducing bax gene expression, so that irregular cell growth, and cancer can be avoided. Cancer, including oral cancer, oftenthuolved cells with altered p53. Exogenous factors, such as tobacco and alcohol, presumably plays a role in triggering p53 mutations. Several techniques, such as immunohistochemistry and PCR can be used to investigation their etiology and development of oral cancer. The results hopefully be applied clinically in early detection, prevention and prediction of cancer. This paper discusses the role on p53 in preventing the occurrence and proliferation of mutated cells that lead to cancer, including oral cancer.

  12. EGRİSEL KİRiŞLERDE GERİLME ANALİZ

    Directory of Open Access Journals (Sweden)

    FARUK ASLAN

    2002-06-01

    Full Text Available Bu çalışmada farklı profilde, aynı kesit alanına sahip, aynı yük ve sınır şartları içerisindeki eğrisel kirişlerde analitik ve bilgisayar destekli nümerik analiz yöntemiyle gerilme analizi yapılarak sonuçları değerlendirecektir. Yapılacak gerilme analizi için aynı malzeme özellikleri ve mühendislik sabitleri kulla nılacaktır.

  13. EGRİSEL KİRiŞLERDE GERİLME ANALİZ

    OpenAIRE

    ASLAN, FARUK; ÖZSERT, İBRAHİM

    2002-01-01

    Bu çalışmada farklı profilde, aynı kesit alanına sahip, aynı yük ve sınır şartları içerisindeki eğrisel kirişlerde analitik ve bilgisayar destekli nümerik analiz yöntemiyle gerilme analizi yapılarak sonuçları değerlendirecektir. Yapılacak gerilme analizi için aynı malzeme özellikleri ve mühendislik sabitleri kulla nılacaktır.

  14. UJI AKTIVITAS ANTIKANKER EKSTRAK ETANOL DAUN Rhizopora mucronata TERHADAP SEL MYELOMA

    OpenAIRE

    Hartiwi Diastuti; Warsinah; Purwati

    2008-01-01

    The mangrove plant have been long used the people for traditional medicine to cure various diseases, one of them to cancer therapy. Investigation the anticancer potent of R. mucronata has not been carried yet. This research was aimed to toxicity test of R. mucronta leaves extracts againts Artemia salina Leach, then cytotoxicity test of R. mucronata leave extracts againts Myeloma cancer cells. The extraction of R. mucronata leaves was peformed by maseration with ethanol. The ethanol extracts w...

  15. AKTIVITAS ANTIKANKER EKSTRAK ETANOL DAUN Rhizopora mucronata TERHADAP LARVA UDANG Artemia salina Leach DAN SEL RAJI

    OpenAIRE

    Hartiwi Diastuti; Warsinah; Purwati

    2009-01-01

    The mangrove plant have been long used the people for traditional medicine to cure various diseases, one of them to cancer therapy. Investigation the anticancer potent of R. mucronata has not been carried yet. This research was aimed to toxicity test of R. mucronta leaf extracts againts Artemia salina Leach, then cytotoxicity test of R. mucronata leave extracts againts Raji cancer cells. The extraction of R. mucronata leaf was peformed by maseration with ethanol. The ethanol extracts was part...

  16. UJI AKTIVITAS ANTIKANKER EKSTRAK ETANOL DAUN Rhizopora mucronata TERHADAP SEL MYELOMA

    Directory of Open Access Journals (Sweden)

    Hartiwi Diastuti

    2008-11-01

    Full Text Available The mangrove plant have been long used the people for traditional medicine to cure various diseases, one of them to cancer therapy. Investigation the anticancer potent of R. mucronata has not been carried yet. This research was aimed to toxicity test of R. mucronta leaves extracts againts Artemia salina Leach, then cytotoxicity test of R. mucronata leave extracts againts Myeloma cancer cells. The extraction of R. mucronata leaves was peformed by maseration with ethanol. The ethanol extracts was partitioned with chloroform, ethylacetate and methanol. The ethanol extracts of R. mucronata leaves respectively was examined their toxicity againts A. salina Leach larv. The toxic exctracts was examined their citotoxicity againts Myeloma cells. The ethanol extract of R. mucronata leaves has toxic character because has LC50 < 1000 mg/mL. Citotoxicity test againts Myeloma cells showed that the chloroform fraction of ethanol extract of R. mucronata leaves have a high activity against Myeloma cell, LC50 value equal to 28,72 mg/mL. Phytochemical study showed that the active fractions contained terpenoid and alkaloid.

  17. Perubahan Sel Imun Pulpitis Akibat Biomodulasi Laser GaA1As

    Directory of Open Access Journals (Sweden)

    Nugrohowati Nugrohowati

    2015-08-01

    Full Text Available The objective of this study was to disclose the effect of GaA1As laser biomodulation on pulpitis immune response. The use of laser is still disputable, because of the biomodulation effect of laser remains unclear, particularly on immune response of pulpitis. Laser is  astressor because it produces stress wave that may cause stress on pulp. Modulation of immune system occurred in each variable of immune system component was considred to be GAS (General Adaptation Syndrome. The applied design of this research was experimental clinical trial that involved laser application on those reversible pulpitis and irreversible pulpitis. Each group consist of 10 samples. To identify biomodulation effect of 2 minutes, 5 minutes laser exposure in reversible and irreversible pulpitis, manova test was done. The different result of biomodulation effect on the control group was only indicated by the exposure of GaAIAs laser for 5 minute in reversible pulpitis on decreasing macrophage, T helper, T cytotoxic, IgM and increasing IgG.

  18. EVALUATION QUANTITATIVE DU SEL DES PRODUITS DE PANIFICATION POUR SA REDUCTION DANS LES PRODUITS ALIMENTAIRES

    OpenAIRE

    Alexandru Stoica; Mihaela F. Maria; Ana M. Hossu

    2010-01-01

    Salt is a vital nutrient necessary for proper functioning of the body, but a large amount of salt is a risk factor in increasing blood pressure, the main cause of cardiovascular disease.The aim of this paper is to determine the percentage of salt in some bakery products in order to reduce the salt intake and to prevent the diseases caused by excessive consumption of salt. For bakery products, determination of sodium chloride was carried out according to Romanian Standard SR 91:2007. Argentome...

  19. Pengaruh Level Subtitusi Protein Sel Tunggal (Cj Prosin) Pada Pakan Komersial Terhadap Performan Ayam Broiler

    OpenAIRE

    Samadi Samadi; Mira Delima; Zuraida Hanum; Muhammad Akmal

    2012-01-01

    The effect of level substitution of single cell protein (CJ Prosin) by commercial feed on broiler performance ABSTRACT. A research to find out the effect of the substitution level of single cell protein in commercial feed on Broiler’s performance was conducted from June to December 2011. The purpose of this experiment is to find out alternative protein sources for animal feedstuff that can be used as protein substitution in animal feed on body weight, feed consumption and feed conversion ...

  20. Uurimus : valimisaktiivsus võib sel aastal tulla mõnevõrra suurem / Urmet Kook

    Index Scriptorium Estoniae

    Kook, Urmet, 1976-

    2007-01-01

    Eesti Päevalehe tellitud ja Turu-uuringute AS-i läbiviidud omnibuss-uuringu kohaselt lubas valima minna 71% küsitletutest. Uuringujuhi Tõnis Ormissoni sõnul on varasemate uuringute ja valimiskäitumise võrdlus näidanud, et neist, kes kavatsevad valima minna, jätab kümmekond protsenti mingil põhjusel minemata

  1. EFEK PEMBERIAN ANTIOKSIDAN TOKOFEROL ALFA TERHADAP MEMBRAN SEL DARAH MERAH TALASEMIA

    Directory of Open Access Journals (Sweden)

    Ferry P Gultom

    2015-09-01

    Full Text Available Talasemia is blood disorder which is characterized by anemia due to inherited haemoglobine disorder. The anemia is caused by a decreased flexibility of the erythrocyte results in decreased capability of required deformability to be able to across through capillary blood vessels. Free radicals with one or more unpaired electron on potential in destroying all the molecule exist in the body of living things like protein, carbohydrate and fat. Tocoferol or vitamin E is an antioxidant essential in eliminating free radicals in the cell membrane by inhibiting the peroxidation process of the cell membrane lipid. The objective of this study is to investigate the severity of the erythrocyte destruction either those with or without oxidative load from the environment. The results of this study showed that the level of malondialdehid in the control of erythrocyte was 1.85 ± 1.37 nmol in talasemia and 1.02 ± 0.64 nmol in normal (p<0.05. The addition of 2mM t-BHP resulted in increased malondialdehid level up to 19.59 ± 6.82 nmol in talasemia and 11.42 ± 3.49 nmol in normal erythrocytes (P<0.05. Oxidated erythrocyte with vitamin E supplement beforehand showed lower level of malondialdehid composed to those without vitamin E supplement (p<0.05. Conclusion: Additional vitamin E (tocoferol leads to decreased level of malondialdehid both in the normal and thalasemia erythrocytes.

  2. Moesõber, sel nädalal riisu koor Eesti rõivakunstilt! / Tanel Veenre

    Index Scriptorium Estoniae

    Veenre, Tanel, 1977-

    2009-01-01

    3. Tallinna moenädala üritustest. Tallinn Fashion Week'i korraldab Eesti Moedisaini Liit. Näitus "Uus Eesti moejoonistus" Arhitektuuri- ja Disainigaleriis. Filippo Caroti ja Oksana Tanditi moefotonäitus Tallinnas Galeriis M. Meesteehete väljapanek ja Anu Hindi moefotonäitus "Aeg maha 3" Iida galeriis. "Eesti moepiibel 2010" esitlus. Rahvusvaheline seminar Veerenni 24. Ülevaade eesti moekunstnike loomingu esitlustest

  3. Jumlah Sel Piramidal CA3 Hipokampus Tikus Putih Jantan pada Berbagai Model Stres Kerja Kronik

    Directory of Open Access Journals (Sweden)

    Fitranto Arjadi

    2014-12-01

    Full Text Available Prolonged and chronic exposure to stress leads to the loss of neurons at the CA3 (cornu ammonis hippocampus region and spatial memory deficits. The aim of this study was to study the number of CA3 pyramidal cells in albino rats that were exposed to chronic stress of works model consisting of paradoxical sleep deprivation (PSD, immobilization, and foot shock stresses. The method applied was the post-test only method with control group experimental design using completed randomized design (CRD on 24 3–4 month old male Wistar rats. The rats were divided into 4 groups: group I (control, group II (PSD stress, group III (immobilization stress, and group IV (footshock stress. The CA3 pyramidal cell hippocampus was stained with toluidine-blue. The number of CA3 pyramidal cell of hippocampus was counted using Image raster v2.1 software at 400x magnification in 10 duplicates for each sample. The study was conducted in six months (April–September 2012 at the Animal Laboratory, Faculty of Medical and Health Sciences, Jenderal Soedirman University. Analysis for the differences in the number of CA3 pyramidal cells was conducted using analysis of variance (ANOVA with Post-Hoc LSD. The results of the ANOVA showed a p value=0.037, meaning that there was significant difference in at least two groups of treatment. Further statistical test using Post-Hoc LSD showed a significant difference between the control group (12.9±2.47 and the chronic immobillization group (9,00±1,53 (p<0.05. In conclusion, the chronic immobillization stress group has the lowest average number of hippocampus CA3 pyramidal cells compared to other groups.

  4. Jumlah Sel Piramidal CA3 Hipokampus Tikus Putih Jantan pada Berbagai Model Stres Kerja Kronik

    OpenAIRE

    Fitranto Arjadi; Sri Kadarsih Soejono; Lientje Setyawati Maurits; Mulyoto Pangestu

    2014-01-01

    Prolonged and chronic exposure to stress leads to the loss of neurons at the CA3 (cornu ammonis) hippocampus region and spatial memory deficits. The aim of this study was to study the number of CA3 pyramidal cells in albino rats that were exposed to chronic stress of works model consisting of paradoxical sleep deprivation (PSD), immobilization, and foot shock stresses. The method applied was the post-test only method with control group experimental design using completed randomized design (CR...

  5. PENGARUH MEMBRAN AMNION TERHADAP JUMLAH SEL FIBROBLAS PADA PROSES PENYEMBUHAN LUKA (Kajian Histologis pada Gingiva Kelinci

    Directory of Open Access Journals (Sweden)

    Margareta Rinastiti

    2015-08-01

    Full Text Available Proliferation phase is the second of the three phases in wound healing. IN this phase, fibroblast is a pivotal component. The migration and proliferation of fibroblast are influenced by FGF, TGF-β and FGF. Amniotic membrane (AM which consists of  several growth factors that play an important role in wound healing can be used as transplantation materials. This study investigated the influence of AM on the number of fibroblast cells in the process of wound healing on rabbit’s gingiva. Thirty six rabbits were divided into 2 groups, one is the control group (C and the other is the treatment group (T. Each of the groups were divided into 6 groups, composed of 3 rabbits based on the date of termination, i.e. 1st, 3rd. 5th. 7th, 10th, and 14th day after wounded. Five layers of AM were applicated on T group wounding and C group wounding were let open. Histological evaluation was done to calculate the number of fibroblast cells. Data analysis was done by using MANOVA. The results showed there was a significant difference (p<0.05 in the number of fibroblast cells between T and C groups among the groups of termination dates. The one having the highest number of fibroblast cell was in T 10 group. It can be concluded that AM enhanced the number of fibroblast cells in the process of wound healing on rabbit’s gingival.

  6. PENGARUH MEMBRAN AMNION TERHADAP JUMLAH SEL FIBROBLAS PADA PROSES PENYEMBUHAN LUKA (Kajian Histologis pada Gingiva Kelinci)

    OpenAIRE

    Margareta Rinastiti

    2015-01-01

    Proliferation phase is the second of the three phases in wound healing. IN this phase, fibroblast is a pivotal component. The migration and proliferation of fibroblast are influenced by FGF, TGF-β and FGF. Amniotic membrane (AM) which consists of  several growth factors that play an important role in wound healing can be used as transplantation materials. This study investigated the influence of AM on the number of fibroblast cells in the process of wound healing on rabbit’s gingiva. Thirty s...

  7. Uudised : "Vox septem saeculi". XI "Jazzkaar", esimene sel sajandil / Mattisen Tiina

    Index Scriptorium Estoniae

    Mattisen Tiina

    2000-01-01

    T. Kaljuste tutvustas 1. märtsil toimunud pressikonverentsil EFK uut kontserdisarja "Vox septem saeculi". 1. märtsil toimunud pressikonverentsil tutvustas A. Erm 23.-30. apr. toimuva XI "Jazzkaare" programmi

  8. Seks Vaalas ehk Täna öösel me ei maga / Maarin Ektermann

    Index Scriptorium Estoniae

    Ektermann, Maarin

    2006-01-01

    Noorte kunstnike näitus "Sex" Vaal-galeriis 2.-20. V. Kuraator Andres Lõo. Loetletud 23 osalejat. Arutelud: 3. V "Kunstnik vs kuraator", inspireerituna Jaan Toomiku maalist "Oodates kuraatorit", kõnelesid Karolin Tampere, Rael Artel, Andres Lõo jt.; 19. V "Kes tellib kunsti?", inspireerituna Kumust, Ku-Ku'st ja kunstist, kõnelesid Raoul Kurvitz, Anders Härm jt.

  9. USDA's Systematic Entomology Laboratory (SEL): Global leadership and innovation in insect systematics

    Science.gov (United States)

    A longstanding agreement between the USDA and the Smithsonian Institution created the National Insect Collection, one of the premiere entomological resources on the planet. Since its inception, USDA scientists associated with the National Insect Collection have been at the forefront of documenting i...

  10. PEMANFAATAN Spirulina platensis SEBAGAI SUPLEMEN PROTEIN SEL TUNGGAL (PST MENCIT (Mus musculus

    Directory of Open Access Journals (Sweden)

    Haryo Kuntoro Adi

    2007-06-01

    Full Text Available The using of Spirulina platensis as Supplement of Single-Celled Protein (SCP to Mice. High protein in Spirulina platensis can be used as a source of Single-Celled Protein. By using mice (Mus musculus as a animal laboratory, the objective of this research is to know the influence of Biomass S. platensis to the increase of body weight of mice. The name of species is Mus musculus, strain is Swiss derivate. Utilized mice were male, 30-50 weighing gram, and 5-7 weeks of age. Treatment group was given by palette and given by biomass of S. Platensis, while control also fed palette but did not give biomass of S. platensis. Yielded biomass was used as food mixed with palette with composition of dry biomass S. platensis with palette was 0%, 10%, 20%, 30%, 40%, and 50%. Data analysis was conducted by using t-tes and analysis of variance. The results showed that by giving of dry biomass of S. platensis affected to the increasement of body weight from the first day until twelfth day of observation, and decrease on the thirteenth and fourteenth day. Pursuant to result of statistic, there is a significant difference (p < 0,05 between before giving and after giving of dry biomass S. platensis during 17 day. By giving dry biomass of S. platensis to mice (Mus musculus at first and second week, it was found the difference of average mice body weight among six concentrations of biomass but did not at the third week. It means that not all concentration of biomass have same effect to the increase of mice body weight as a Single-Celled Protein.

  11. Pengaruh Level Subtitusi Protein Sel Tunggal (Cj Prosin Pada Pakan Komersial Terhadap Performan Ayam Broiler

    Directory of Open Access Journals (Sweden)

    Samadi Samadi

    2012-04-01

    Full Text Available The effect of level substitution of single cell protein (CJ Prosin by commercial feed on broiler performance ABSTRACT. A research to find out the effect of the substitution level of single cell protein in commercial feed on Broiler’s performance was conducted from June to December 2011. The purpose of this experiment is to find out alternative protein sources for animal feedstuff that can be used as protein substitution in animal feed on body weight, feed consumption and feed conversion efficiency. The experiment is considered as preliminary experiment to observe the response of single cell protein on broiler performance. This research was carried out at experimental farm, Animal Husbandry Department, Syiah Kuala University. Totally, 250 DOC of Cobb breed with the average body weight 36,78±2,32 gr. used in this experiment. Completely Randomized Design was applied in this experiment with 5 treatments; P0 (commercial feed, P1(commercial feed substituted with 6% SCP, P2 (commercial feed substituted with 12% SCP dan P3 (commercial feed substituted with 18%CSP. Each treatment consist of 5 replications with total of 20 treatment’s units. Feed was formulated with isoprotein and isoenergy based on NRC requirement ( 23% protein ; 3200 kcal ME/kg at the age of 1-2 week and 20 % protein ; 3200 kcal ME/kg at the age of 4-7 week. Data was analyzed by using SPSS program SPSS (Window 2008. Differences between treatment were stated by Duncan’s multiple range test. The results of the experiment showed that commercial feed substituted with the level of SCP was not significantly difference (P>0.05 on body weight gain, feed consumption, and feed conversion ratio. On the other hand, administration of SCP as substituted feed commercial on the level of 12 % and 16 % influenced significantly (P<0.05 on body weight gain and feed conversion ratio, but not on feed consumption at the level of 12% SCP. As a conclusion, the use of SCP as animal feed sources in commercial feed only could be tolerated at the level of 6%.

  12. Kultuuripealinn kutsub sel nädalal tundmatuid katuseid käima / Heidi Kukk

    Index Scriptorium Estoniae

    Kukk, Heidi

    2010-01-01

    Tallinn 2011 ootussarja "52 üllatust ja ideed" raames 12. ja 13. augustil toimuvast projektist "Katustele", mille eestvedajateks on Eesti Kunstiakadeemia üliõpilased Helen Melesk ja Hello Upan. Järgmisena on kavas tantsu- ja laululine performance Anneli Leinbergi juhendamisel ja Tallinna merepiiri kasutule olekule pühendatud kunstiprojekt "Bassein"

  13. Deficiência de selénio em pequenos ruminantes

    OpenAIRE

    Veloso, Glória Maria Silveira

    2016-01-01

    Dissertação de Mestrado Integrado em Medicina Veterinária Os minerais intervêm em muitas das vias metabólicas do organismo animal, tendo funções importantes na performance reprodutiva, na manutenção do crescimento, no metabolismo energético, na função imune, entre outras funções fisiológicas. Os minerais são importantes não só para a manutenção da vida do animal, mas também para o aumento da produtividade. No entanto, nem sempre os alimentos possuem quantidades ideais e suficientes de mine...

  14. Biorremediación acelerada de suelos contaminados con hidrocarburos tipo diésel

    OpenAIRE

    Moliterni Merlo, Elena

    2016-01-01

    La biorremediación es una tecnología biológica para la descontaminación de suelos basada en la conversión o metabolización de los contaminantes por microorganismos; es decir, requiere una cepa o consorcio microbiano eficiente que degrade la mayor cantidad de contaminante hasta un nivel mínimo. Los procesos de biorremediación de suelos contaminados con hidrocarburos (HC) pueden desarrollarse mediante un gran abanico de estrategias. Este hecho permite acoplarse a distintos episodios de contamin...

  15. As proteínas núcleares nos seláceos

    Directory of Open Access Journals (Sweden)

    Humberto T. Cardoso

    1947-12-01

    Full Text Available São estudadas as reações químicas e fisico-químocas de uma proteina extraida do esperma de peixes dos gêneros Carcharias, Raf. e Galeocerdo, Ranz. Parece tratar-se de histonas, tendo em vista os resultados obtidos.

  16. Tartu maantee läheb sel kevadel kindlasti remonti / Uwe Gnadenteich

    Index Scriptorium Estoniae

    Gnadenteich, Uwe

    2005-01-01

    Tartu maantee rekonstrueerimise esimesest etapist. Tallinna abilinnapead Vladimir Maslov ja Peep Aaviksoo teelaiendusele ette jäävate kinnisvaraobjektide ostmise hetkeseisust, selleks ettenähtud summast

  17. Hubungan antara pH Susu dengan Jumlah Sel Somatik Sebagai Parameter Mastitis Subklinik

    OpenAIRE

    M. Sudarwanto; Sudarnika, E.

    2008-01-01

    The aim of this research was to measure the relationship of the pH value to the somatic cell count as a parameter of sub clinical mastitis detection. Two hundreds quarter milk samples were used in this research and the test (the pH value, IPB-1 mastitis test and Breed method) was done in parallel way. The results showed that 152 samples from 200 samples (76%) tested with Breed method came from the herds which suffered from sub-clinical mastitis and with IPB-1 test showed that 145 (72.5%) of...

  18. Pengaruh Media Tumbuh terhadap Kadar Protein Saccharomyces cerevisiae dalam Pembuatan Protein Sel Tunggal

    Directory of Open Access Journals (Sweden)

    RATNA SETYANINGSIH

    2004-11-01

    Full Text Available The aim of this research was to examine the influence of difference growth media, i. e. tofu liquid waste, tofu solid waste, and coconut water in various composition and Yeast Extract Peptone Dextrose (YEPD, to protein contents of Saccharomyces cerevisiae in Single Cell Protein (SCP production. The framework of this research was that tofu liquid waste, tofu solid waste, and coconut water were containing a lot of carbons, nitrogens, minerals, and vitamin that could be used as growth medium of S. cerevisiae to produce SCP, which was commonly used. The medium from tofu liquid waste and the coconut water were made by ratio 2:1, 1:1, 1:2 and added with tofu solid waste 1.5 g and 2.5 g. Then, the measurement of pH medium, the amount of cell, cell dried weight, and the protein content in S. cerevisiae was done. The measurement of protein content was done by Lowry method. The result of the research showed that growth media influenced protein content of S. cerevisiae. Protein content of S. cerevisiae cultured in tofu liquid waste- coconut water was lower then in YEPD medium. The protein content of S. cerevisiae cultured in tofu liquid waste and coconut water ratio 1:2, added with 2.5 g tofu solid waste was higher then in other medium composition.

  19. Uji Diagnostik Dermatoskopi Pada Pasien Karsinoma Sel Basal di RSUP. H. Adam Malik Medan

    OpenAIRE

    Rinanda, Fenni

    2015-01-01

    Background: Basal-cell carcinoma is a malignant neoplasm appeared from a non-keratinizing cell which comes from epidermic basal layer. Hispatological test to diagnose basal-cell carcinoma may give rise to uncomfortability and fear. Dermatoscopy test, on the other hand, constitutes a non-invasive, easy, and prompt test which may minimize risks that potentially occurs when conducting a biopsy. Objective: To find out dermatoscopy diagnostic test values in diagnosing basal-cell carcinoma. ...

  20. Fenomen nimega Laibach - sel korral Bachi fuugasid ette kandmas / Helen Sildna

    Index Scriptorium Estoniae

    Sildna, Helen

    2009-01-01

    17. veebruaril Tallinnas Rock Cafes esinevast Sloveenia ansamblist, kes esineb J.S. Bachi fuugadel põhineva eksperimentaalteosega "LaibachKunstDerFuge"; kommenteerinud Tõnu Kaalep, Anders Melts, Mart Kalvet

  1. Tartu visuaalse kultuuri festivalil näeb sel nädalal maailmafilme

    Index Scriptorium Estoniae

    2005-01-01

    02.-08. maini toimub Tartus Eesti Rahva Muuseumi näitusemajas teist korda rahvusvaheline visuaalse kunsti festival, seekord nime all "Maailmafilm". Festivali avafilmiks on Philip Coxi "Me oleme indiaanlased" Argentiina guarani indiaanlastest

  2. Sorção de selênio em solos do bioma cerrado

    OpenAIRE

    Lívia Botelho de Abreu; Geila Santos Carvalho; Nilton Curi; Luiz Roberto Guimarães Guilherme; João José Granate de Sá e Melo Marques

    2011-01-01

    O estudo da distribuição de Se em solos é de extremo interesse devido à estreita faixa entre níveis de deficiência e toxidez. A espécie química de Se com maior potencial toxicológico é o ânion selenato, em razão de sua alta mobilidade em solos, sendo assim de grande importância a compreensão de seu comportamento em solos tropicais. Foi realizado um experimento de adsorção, utilizando-se 2 g de solo em 20 mL de solução, contendo dez diferentes concentrações de Se na forma de Na2SeO4, com tempo...

  3. Adsorção de selênio em latossolos Selenium adsorption in oxisols

    Directory of Open Access Journals (Sweden)

    Ernesto Rinaldi Mouta

    2008-06-01

    Full Text Available A retenção de Se pelos colóides do solo constitui importante processo para a manutenção da sanidade ambiental. A informação sobre a adsorção de Se em solos altamente intemperizados é restrita e existem poucos padrões quantitativos disponíveis para a definição de estratégias de remediação de áreas contaminadas. Quantidades crescentes de Se (5, 10, 25, 50, 100 e 250 mg L-1, na forma de Na2SeO3, foram adicionadas a amostras de dez Latossolos brasileiros [três Latossolos Vermelho-Amarelos (LVA-1, LVA-2 e LVA-3, dois Latossolos Vermelhos (LV-1 e LV-2, um Latossolo Vermelho eutroférrico (LVef, um Latossolo Vermelho acriférrico (LVwf, dois Latossolos Amarelos (LA-1 e LA-2 e um Latossolo Amarelo acriférrico (LAwf]. Isotermas de adsorção foram construídas e foi verificado o ajuste dos resultados experimentais aos modelos de Langmuir e de Freundlich. A equação de Langmuir ajustou melhor os resultados de adsorção de Se do que a isoterma de Freundlich. Todas as isotermas apresentaram o formato tipo-L (exponencial, com exceção daquelas obtidas para o LVA-1 e para o LVA-2, que apresentaram comportamento tipo-C (linear. Valores de adsorção máxima (Ads máx, estimada pelo modelo de Langmuir, variaram de 135 (LVA-3 a 2.245 mg kg-1 (LA-1, enquanto os coeficientes de afinidade (K L estiveram entre 0,002 (LVA-2 e 0,326 (LVA-3. A constante de afinidade estimada pelo modelo de Freundlich (Kf variou de 13,7 (LVA-2 a 180,1 (LAwf. A adsorção máxima de Se foi mais elevada no LVef e nos Latossolos ácricos (LAwf e LVwf, enquanto os maiores valores de Kf foram encontrados no LV-2, LVef, LVA-3 e LVwf. Não houve correlação entre os atributos dos solos e as constantes de Langmuir. Valores de Kf correlacionaram-se com os teores de argila (r = 0,42* e com a capacidade de troca de ânions (r = 0,64*.Selenium (Se retention by soil colloids is an important process to maintain the environmental quality. Little information is available on Se adsorption in highly weathered tropical soils, and there are few numerical parameters that can be used as references to aid on adoption management strategies in contaminated areas. Increasing amounts of Se (5, 10, 25, 50, 100 and 250 mg L-1, added as Na2SeO3, were equilibrated with samples of ten Brazilian Oxisols [three Typic Hapludoxes (TH-1, TH-2 and TH-3, two Rhodic Eutrudoxes (RE-1 and RE-2, two Xanthic Hapludoxes (XH-1 and XH-2, one Rhodic Hapludox (RH, one Rhodic Acrudox (RA and one Anionic Acrudox (AA]. Adsorption isotherms were obtained and the experimental results fitted to Langmuir and Freundlich models. The Langmuir equation fitted better to the experimental data than the Freundlich model. All isotherms had an L-type (exponential shape, except for TH-1 and TH-2, which had a C-type (linear shape. Selenium Ads max varied between 135 mg kg-1 (TH-3 and 2.245 mg kg-1 (XH-1 and the affinity constant (K L varied from 0.002 (TH-2 to 0.326 L kg-1 (TH-3. Affinity constant (Kf values between 13.7 (TH-2 and 180.1 L kg-1 (AA were obtained from the Freundlich model. A high Se retention potential was observed on RH and on acric Oxisols (AA and RA, while qualitative parameters indicated RE-2, RH, TH-3 and RA as Oxisols with high Se affinity. No correlations were observed between soil attributes and Langmuir parameters. The Freundlich coefficient (Kf correlated with clay content (r = 0.42* and with anion exchange capacity (AEC (r = 0.64*.

  4. Pengaruh Pemberian Azolla Dan Urea Terhadap Pertumbuhan Dan Produksi Padi Sawah (Oryza sativa L.) Pada Inceptisol Di Cengkeh Turi Binjai

    OpenAIRE

    Nasution, Fatimah Azzah Rawani

    2012-01-01

    Penelitian bertujuan untuk mengetahui pemberian azolla dan urea terhadap pertumbuhan dan proruksi padi ( Oryza sativa L. ) pada Inceptisol kelurahan Cengkeh Turi Binjai. Padi merupakan bahan makanan utama, bahan makanan ini untuk memenuhi makanan pokok sebagian besar penduduk Indonesia, sehingga diperlukan peningkatan produksi bahan makanan dalam jumlah yang sesuai dengan peningkatan bahan makanan. Dengan peningkatan produksi yang tinggi harus diimbangi dengan penggunaan pupuk. 95030...

  5. Identifikasi Potensi Produksi Biogas dari Limbah Cair Tahu dengan Reaktor Upflow Anaerobic Sludge Blanket (UASB)

    OpenAIRE

    WAGIMAN

    2007-01-01

    Limbah cair tahu mengandung bahan organik sehingga dapat digunakansebagai bahan baku produksi biogas. Sebagai produk samping sistempengolahan limbah secara anaerobik, biogas masih belum banyak dikajinilai tambahnya. Penelitian ini bertujuan untuk mengevaluasi potensilimbah cair tahu sebagai bahan baku produksi biogas dengan menggunkanreaktor Upflow Anaerobic Sludge Blanket (UASB). Dari aspek teknik dilihat laju produksi biogas dan laju degadasi bahan organik (COD), sedangkan dari sisi ekonomi...

  6. PENGARUH PENAMBAHAN KARET SILIKON TERHADAP SUDUT KONTAK HIDROPOBIK DAN KARAKTERISTIK ARUS BOCOR PERMUKAAN PADA BAHAN RESIN EPOKSI

    OpenAIRE

    Abdul Syakur; Ika Novia; Sarjiya Sarjiya; Tumiran Tumiran; Hamzah Berahim

    2010-01-01

    Currently, polymer materials such as epoxy resin have been used as an insulator in the distribution andtransmission line. Some advantages of using this epoxy resin material having the dielectric properties are better thanporcelain and glass insulators. On the other side, epoxy resins are also disadvantage the surface is hygroscopic. Forthe repair was done by adding the surface properties of silicone rubber materialThis paper describes the effect of adding silicone rubber against contact angle...

  7. PENGARUH PENAMBAHAN KARET SILIKON TERHADAP SUDUT KONTAK HIDROPOBIK DAN KARAKTERISTIK ARUS BOCOR PERMUKAAN PADA BAHAN RESIN EPOKSI

    Directory of Open Access Journals (Sweden)

    Abdul Syakur

    2010-12-01

    Full Text Available Currently, polymer materials such as epoxy resin have been used as an insulator in the distribution andtransmission line. Some advantages of using this epoxy resin material having the dielectric properties are better thanporcelain and glass insulators. On the other side, epoxy resins are also disadvantage the surface is hygroscopic. Forthe repair was done by adding the surface properties of silicone rubber materialThis paper describes the effect of adding silicone rubber against contact angle of hidrophobicity and surfaceleakage current characteristics of epoxy resin materials ( Di-Glycidyl Ether of Bisphenol A (DGEBA andMethaphenylene-Diamine (MPDA. The study was conducted in the laboratory using the electrode method IEC587:1984 with NH4Cl contaminants. The voltage applied to the epoxy resin sample at 3.5 kV and 50 Hz frequencyThe experimental results showed that the addition of silicon rubber in epoxy resin makes the surface materialcontact angle increases. The higher percentage of silicone rubber, the greater the contact angle and the longer timerequired for the occurrence of surface discharge.

  8. Respon inflamasi pulpa gigi tikus Sprague Dawley setelah aplikasi bahan etsa ethylene diamine tetraacetic acid 19% dan asam fosfat 37%

    OpenAIRE

    Nadie Fatimatuzzahro; Tetiana Haniastuti; Juni Handajani

    2013-01-01

    Background: Etching agents such as ethylene diamine tetraacetic acid (EDTA) and phosphoric acid which are widely used in adhesive restoration system, are aimed to increase retention of restorative materials; however, these agents may induce inflammation of dental pulp. The major function of the inflammatory response is to remove invading pathogens or damaged tissue/ cells and therefore, initiate repair. Neutrophils and macrophages are motile phagocytes that constitute the body's first line of...

  9. PENEGAKAN HUKUM TERHADAP PELAKU KEGIATAN PERTAMBANGAN BAHAN GALIAN GOLONGAN C DI KAWASAN TAMAN NASIONAL GUNUNG MERAPI KABUPATEN MAGELANG

    OpenAIRE

    Panjaitan, Ricky Pangeran Adi Putra

    2014-01-01

    development in terms of development and the nature of the country's foreign exchange non-oil sector should be managed, developed and used in the best well. The potential of these natural resources is expected to provide prosperity and well-being of the people through a sustainable use of natural resources in a sustainable manner which refers to conservation efforts as the cornerstone of the process of achieving a balance between the protection, preservation, and utilization of ...

  10. Analisa Keasaman dan Total Bakteri Asam Laktat Yogurt Akibat Bahan Baku dan Persentase Lactobacillus casei yang Berbeda

    Directory of Open Access Journals (Sweden)

    Yusdar Zakaria

    2013-10-01

    Full Text Available Analyze of acidity and amount of lactic acid bacteria of yogurt made from different milk types and lactobacillus casei percentage ABSTRACT. The objective of this experiment is to determine the effect of milk types and percentages of Lactobacillus casei as a starter to the amount of Lactic Acid Bacteria in yogurt and its pH value and Lactic Acid value.  Factorial Completely Randomized Design with two factors and three replications was applied.  The A factor was the milk types that were a1 = Powder Milk, a2 = Fresh Milk and a3 = UHT milk.  The B factor was the percentages of Lactobacillus casei  (b1 = 5% and b2 = 10%.  Parameters observed were the level of lactic acid, the pH value of yogurt and the amount of lactic acid bacteria.  The result showed  significantly difference (P<0.01 from the use of milk types and Lactobacillus casei percentages on the lactic acid level, and there are no interaction between factors.  There was also significant different (P<0.01 showed from pH value and an interaction between both factors was presented.  In addition there was significant difference (P<0.05 showed by the amount of lactic acid bacteria, and an interaction between both factors was also existed.  The research concluded that the higher the percentage of starter, the higher the level of lactic acid and the amount of lactic acid bacteria of yogurt that made from all milk types.  On the contrary, the higher the percentage of starter, the lower the pH value of yogurt.

  11. Kandungan Mikrob Daging Kelelawar yang Diolah sebagai Bahan Pangan Tradisional MICROBIAL CONTENT IN THE PROCESSED MEAT BATS AS TRADITIONAL FOOD

    OpenAIRE

    Tiltje Andretha Ransaleleh; Rarah Ratih Adjie Maheswari; Purwantiningsih Sugita; Wasmen Manalu

    2013-01-01

    This study was designed to assess the microbial characteristics of bats meat which were cooked askari and rica-rica, and were stored up to 14 days.The study was divided into two stages, the first stage usedthree types of bat meat that were cooked as rica-rica and kari 14 days after being stored in the refrigerator.The second stage used meat of a species of bat that was cooked as rica-rica and kari a few hours afterslaughtering. The result of the meat analysis at the 1st showd that thetotal co...

  12. Kandungan Mikrob Daging Kelelawar yang Diolah sebagai Bahan Pangan Tradisional MICROBIAL CONTENT IN THE PROCESSED MEAT BATS AS TRADITIONAL FOOD

    Directory of Open Access Journals (Sweden)

    Tiltje Andretha Ransaleleh

    2013-11-01

    Full Text Available This study was designed to assess the microbial characteristics of bats meat which were cooked askari and rica-rica, and were stored up to 14 days.The study was divided into two stages, the first stage usedthree types of bat meat that were cooked as rica-rica and kari 14 days after being stored in the refrigerator.The second stage used meat of a species of bat that was cooked as rica-rica and kari a few hours afterslaughtering. The result of the meat analysis at the 1st showd that thetotal count of microbials i.e;Staphylococcus aureus, Escherichia coli, coliform, and Salmonella sp from three species of bats that werecooked rica-rica  and  kari  were above the maximum limit of microbial contaminant occording to BSN(2009. The analysed made on the rica-rica showed that bat meat rica-rica stored up to 14 days containedtotal microbial count of 3,1 x 104 - 6,0 x 104Cfu/mL, Staphylococcus aureus 7,7 x 101- 7,6 x 103 Cfu / mL,Escherichia coli and Salmonella sp was negative. The total microbial count  of bat meat kari was  6,8 x 105-9,7 x 105Cfu/mL,  Staphylococcus aureus  was 4,3 x 101-1 x 104 Cfu /mL.  Escherichia  coli <3 / mL, andSalmonella sp was negative. Based on the result abtained, it was concluded that the bat meat rica-ricaand kari which were cooked in a few hours after cutting and stored until 14 days were suitable for humanconsumption.

  13. Pengaruh Pemberian Bahan Organik, Urea, Pengaturan Umur Bibit dan Penggunaan Sistem Tanam Terhadap Produktivitas Tanaman Padi (Oryza sattva L)

    OpenAIRE

    Silitonga, Dumen

    2013-01-01

    Influence of giving of organic matter, urea, arrangement of age seed and usage of planting system to productivity paddy crop {Oryza Sativd). This Research aim to know influence of applied organic matter, urea, arrangement of seed age and usage of row planting system to paddy productivity, with assumption or hypothesizing that there is difference between giving of organic matter, application of N pursuant to Schema Colour Leaf, arrangement of seed age and usage of row planting system legowo...

  14. Pembuatan Bahan Bakar Biodisel dari Minyak Jarak; Pengaruh Suhu dan Konsentrasi KOH pada Reaksi Transesterifikasi Berbasis Katalis Basa

    Directory of Open Access Journals (Sweden)

    RAGIL SARYOSO

    2006-05-01

    Full Text Available Making biodiesel from jatropha oil have been made through transesteri-fication reaction. This study aims to determine the optimum catalyst temperature and KOH concentration on the transesterification reaction of castor oil to produce a product with maximum unsaturated fatty acid content; as well as to study the properties of jatropha oil ester based diesel fuel specifications. Transesterification was performed by reaction of jatropha oil and methanol in ratio of 1: 2 for 2 hours according to variations in temperature and KOH concentration. Temperature variations performed at room temperature, 55°C, and 65°C. KOH variations performed at concentration of 0.2 g, 0.3 g, 0.4 g, 0.5 g, 0.6 g, 0.7 g, 0.8 g and 0.9 g. The research indicated that jatropha oil saponification number was 180.455. Analysis by Gas Chromatography Mass Spectroscopy (GC-MS were obtained oleic methyl ester (Rt 15.45 min and SI 88, linoleic acid methyl ester (Rt 13.250 min and SI 89, 11-octadecanoic methyl ester (Rt 13.333 min and 94 SI and risinoleic methyl ester (Rt 11.383 min and SI 91 as dominant unsaturated fatty acid ester in jatropha oil. Transesterification reaction of jatropha oil in methanol have maximum unsaturated fatty acid content at temperature of 65oC and optimum catalyst concentration of KOH at 0.178 M (0.4 g. Analysis using the American Society for Testing Materials (ASTM method generated pour point value was 8oF, kinematic viscosity was 16.324 cSt, water content was 0.015 %vol, conradson carbon residue was 0.204 %wt. The properties are very closely to diesel oil specifications that can be used as biodiesel.

  15. OPTIMASI BIOKRAFT JAMUR Phanerochaete chrysosporium TERHADAP KOMPONEN KIMIA CAMPURAN BATANG DAN LIMBAH CABANG MANGIUM SEBAGAI BAHAN BAKU PULP

    Directory of Open Access Journals (Sweden)

    Devi Silsia

    2010-11-01

    Full Text Available Optimation biokraft of fungi P. Chrysosporium through elongated incubation time on mixed stem and branch waste mangium is a solution to solve the environmental pollution problem, low quality of pulp and limited raw material. Effect of P. Chrysosporium 10 % concentration and 45 days incubation time on pre research could not decrease lignin optimally and exstractive degradation had not occured yet. The aims of the study were to observe the effect of incubation time extension, and to determine the best incubation time of P. Chrysosporium applied at 10 % concentration based on the chemical component percentage, 45, 60 and 75 days on mixed stem and branch as raw material for pulp. Results showed that increasing incubation time decreased extractive and lignin content and increased holocelulosa and alpha celulosa content. Mixed stem and branch with 10% amount and 75 day incubation time of P. Chrysosporium gave the best results for raw material of pulp.

  16. Mesin Pemindah Bahan Analisa Gaya-Gaya Dan Pengaruh Sudut Terhadap Lengan Truk Crane Dengan Panjang Dan Kapasitas Maksimum.

    OpenAIRE

    Akbar, Muhammad

    2011-01-01

    Truck crane hanya mengangkat beban-beban dalam jumlah besar dan dalam jarak yang sangat terbatas. Artinya penggunaan truck crane sebagai alat pengangkat dan pemindahan beban pada umumnya digunakan di tempat-tempat atau di areal-areal yang membutuhkan dimensi cukup luas, dikarenakan dimensi dari truck crane itu sendiri cukup besar karena itu penggunaan truck crane sangat terbatas.

  17. Evaluasi Pemberian Bahan Allograft dan Alloplast pada Penderita Periodontitis Agresif Menyeluruh dengan Genotipe Positif Alel 2 (+3954 Interleukin-1 Beta

    Directory of Open Access Journals (Sweden)

    Andrena Andrena

    2013-06-01

    Full Text Available Generalized aggressive periodontitis is a disease or a disorder of periodontium that occurs in people below 30 years old. These patients usually have several immune response disorders, such as defects in chemotaxis, phagocytic of neturophils and monocytes, and genetic defect. Clinically, there are generalized losses of tissue attachment with extensive, rapid and progressive alveolar bone resorption. In order to repair bone destruction, treatment that produce bone regeneration is needed, i.e. full thickness flap with bone grafting. In these cases, allograft and alloplast bone grafts were used. Allograft is derived from subjects within the same species but different individuals, whereas alloplast is foreign body embedded into the tissue (e.g. hydroxylapatite. In this report, pocket depth, papillae bleeding index (PBI, and clinical attachment were evaluated. Six month after surgery and bone grafting, there were + 4 mm decrease of pocket depths, bleeding on probing index and 3-4 mm increase of clinical attachment. Unstimulated wholes saliva were also collected for DNA isolation. The IL-1beta(+3954 genotypes were performed by Polymerase chain reaction, digested with TagI restriction enzyme and separated by gel electrophoresis. Results showed both patients bearing allele 2 homozygous of IL-1B+3954 genotype. This genotype has been identified as the one of immunogenetic factor that could affect the severity of periodontal disease. Successful treatment depends on the adequacy of oral hygiene. Patients were advised to maintain optimal oral hygiene and to do periodic check every 2-3 months.DOI: 10.14693/jdi.v15i2.70

  18. ANALISIS TREN PENELITIAN PANGAN FUNGSIONAL: KATEGORI BAHAN SERAT PANGAN [Functional Food Research Trend Analysis: Dietary Fiber Category

    Directory of Open Access Journals (Sweden)

    Diah Anggraeni Jatraningrum

    2012-06-01

    Full Text Available Functional food, such as probiotic, prebiotic, dietary fiber, vitamin, flavonoid etc, is one of the convergent products between foods and pharmaceutical industry. Dietary fiber, as a part of functional food, is showing a rapid increment in publications and patents. This review will try to give more information about the current advancement in dietary fiber research in Indonesia versus global research trend and also to compare patentability of research in dietary fiber. There are five technology in dietary fiber that will be highlighted; formulation-process-fortification, extraction-isolation-purification, fermentation, metabolic and biotechnology. Research evaluation between dietary fiber research data in the Indonesian Institute of Science (LIPI and global publications and patents show that dietary fiber have chance to be developed become new product with a convergent category in functional food. Dietary fiber with probiotic or prebiotic for is as an example.

  19. JENIS - JENIS TUMBUHAN YANG DIGUNAKAN SEBAGAI BAHAN PERAWATAN KECANTIKAN DI PURI DAMAI DESA SINGAKERTA, KECAMATAN UBUD, KABUPATEN GIANYAR

    Directory of Open Access Journals (Sweden)

    Anak Agung Istri Ratih Gayatri

    2015-05-01

    Full Text Available Indonesia has many variaties of plant which give a benefit for house, clath, meals,medicine even for beauty treatment. A beauty treatment made from chemical agent causing anegative effect, so searching for an alternative agent for beauty treatment without giving anegative side effect was needed. The goal of has research is to know find species of plants,methods of process also how to process the plants become a herbal beauty treatment agent atPuri Damai which located in Singakerta village, district of ubud, Gianyar region. They takedirect observation, description and identification methods. According to the result of theresearch were found 25 species, 19 suku of plants 3 euphorbiaceae, 2 asteraceae, 2araliaceae, 2 zingiberaceae, pandanaceae, asphodelaceae, poaceae, fabaceae, anonaceae,magnoliaceae, arecaceae, laminaceae, malvaceae, cactaceae, oleaceae, apocynaceae,agavaceae, melastomataceae, rutaceae. Hair vertilizer oil mostly was made from the leaf ofthe plant takes around 56% and for massage oil take the flowers around 53 %. The methodswas taken to produce hair vertilizer oil and ingredients was fried in 1 liter frying oil between6 – 8 hours long in little fire. Direction of use for hair vertilizer oil is rubbing the oil on thecalp and hair before is after washing the hair. The use of massage oil the oli to the body andgive a massage.Keywords : Etnobotany, Beauty treatment, Observation.

  20. JENIS - JENIS TUMBUHAN YANG DIGUNAKAN SEBAGAI BAHAN PERAWATAN KECANTIKAN DI PURI DAMAI DESA SINGAKERTA, KECAMATAN UBUD, KABUPATEN GIANYAR

    OpenAIRE

    Anak Agung Istri Ratih Gayatri; Eniek Kriswiyanti; I Gusti Ayu Sugi Wahyuni

    2015-01-01

    Indonesia has many variaties of plant which give a benefit for house, clath, meals,medicine even for beauty treatment. A beauty treatment made from chemical agent causing anegative effect, so searching for an alternative agent for beauty treatment without giving anegative side effect was needed. The goal of has research is to know find species of plants,methods of process also how to process the plants become a herbal beauty treatment agent atPuri Damai which located in Singakerta village, di...