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Sample records for bahan sel surya

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

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    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

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

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    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 %.

  4. STUDI PENGARUH PENGGUNAAN POLY(3-HEXYLTHIOPHENE P3HT DAN GRAFIT TERHADAP KINERJA SEL SURYA

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    - Nurussaniah

    2013-05-01

    Full Text Available Sel surya organic merupakan suatu divais fotovoltaik yang mampu mengubah cahaya matahari menjadi energi listrik. Sel surya organik adalah sebuah alternatif untuk menggantikan sel surya silikon karena dapat diproduksi dengan teknik yang mudah dan biaya yang murah. Struktur pada penelitian ini adalah TiO2/P3HT/elektrolit/FTO dan TiO2/P3HT/elektrolit/FTO+Grafit. Karakterisasi I-V menunjukkan bahwa penambahan konsentrasi P3HT dapat meningkatkan kinerja sel surya. Penggunaan grafit pensil sebagai elektroda lawan menghasilkan performa DSSC yang lebih baik dibandingkan dengan yang tidak menggunakan grafit pensil. Grafit pensil yang dideposisikan pada kaca konduktif sebagai elektroda lawan mampu menjadi katalis untuk mempercepat reaksi redoks dengan elektrolit. Performa sel surya terbaik dari penelitian ini diperoleh pada sel dengan struktur TiO2/P3HT/elektrolit/FTO+Grafit dengan konsentrasi P3HT 1% dan menggunakan grafit sebagai elektroda lawan, efisiensi yang dihasilkan adalah 2,9×10-3%.

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

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    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

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

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    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

  7. 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

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    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

  8. Pengaruh Penambahan Grafit terhadap Sifat Tarik, Stabilitas Termal dan Konduktivitas Listrik Komposit Vinil Ester/Grafit sebagai Pelat Bipolar Membran Penukar Proton Sel Bahan Bakar (PEMFC

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    Galang Wisnu Wardana

    2014-03-01

    Full Text Available Sel bahan bakar merupakan sel elektrokimia yang mampu mengkonversi bahan bakar menjadi energi listrik. Lebih dari 80% dari volume, 70% dari total berat dan 60%  biaya dalam  fuel cell berupa pelat bipolar. Penelitian ini bertujuan untuk mengetahui pengaruh grafit terhadap sifat, stabilitas termal  dan konduktivitas listrik komposit vinil ester/grafit. Matriks yang digunakan adalah epoxy vinil ester (EVE dan novolac vinil ester (NVE. Filler yang digunakan adalah grafit dengan kadar grafit 20 dan 40%.  Bahan campuran dimatangkan dalam furnace pada temperatur  50, 100,  150, 200, 250oC selama dua jam. Pengujian yang dilakukan yaitu FT-IR, tarik, SEM, TGA dan konduktivitas listrik. Hasil pengujian menunjukkan penambahan grafit  dapat menurunkan Modulus Young, sifat tarik dan elongasi. Kekuatan tarik  tertinggi EVE adalah 16.6 MPa sedangkan NVE 10.7 MPa, sedangkan 40% 3.0 MPa untuk EVE dan 2.95 MPa untuk NVE. Stabilitas thermal meningkat dengan penambahan grafit, data 40% grafit menunjukkan  berat sisa pada 800⁰ C senilai 47% untuk EVE maupun NVE. Penambahan grafit juga dapat menaikkan konduktivitas listrik. Data tertinggi diperoleh pada komposisi 40% grafit  yaitu 1,1 S.Cm-1 untuk EVE dan 0.93 untuk NVE.

  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

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    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. PERSPEKTIF ARSITEKTUR SURYA DI INDONESIA

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    Jimmy Priatman

    2000-01-01

    Full Text Available 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 sumberdaya alternatif yang prospektif karena energi surya merupakan sumber energi yang dapat diperbarui dan tidak menimbulkan polusi. Potensi energi surya di Indonesia yang berada dijalur khatulistiwa memungkinkan penggunaan secara langsung dalam bangunan untuk memenuhi kebutuhan manusia. Implementasi teknik pemanfaatan energi surya kedalam bangunan secara integratif menimbulkan tantangan spesifik dalam perancangan arsitektur dan merupakan embrio pewujudan suatu tatanan arsitektur baru yang dikenal sebagai "arsitektur surya" Keywords: arsitektur surya, energi surya

  12. 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 ...

  13. 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...

  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

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    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. Surya Namaskar (Sun Salutation: A Path to Good Health

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    Amit Vaibhav

    2016-07-01

    Full Text Available Surya Namaskar (Sun Salutation is an ancient and sacred yogic technique of India for expressing gratitude to the Sun. Surya Namaskar is a set of 12 Asanas (postures, It is done preferably in the morning while facing the rising sun. There are numerous health benefits of Surya Namaskar for different system of the body specially musculoskeletal, cardiovascular, gastrointestinal, nervous system, respiratory and endocrinal. The heart, liver, intestine, stomach, chest, throat, legs and backbone are main benefited organs. By practicing Surya Namaskar each and every cell of body get revitalize and regenerated, therefore it is highly recommended by all yoga experts for healthy routine life. The regular practice of Surya Namaskar improves blood circulation throughout the body, maintains health and makes the body disease-free. Regular practice of Surya Namaskar gives strength, flexibility and vitality to the body. Sun Salutation asanas help to burn extra body fat on belly, buttocks and back by modulating endocrinal system. It also helps to regulate menstrual cycles among women and also facilitate an easy childbirth. Apart from these benefits of Surya Namaskar also help to keep the mind stress free, calm and illuminated. Thus, a regular practice of Surya Namaskar is highly recommended to keep the body and mind healthy. Though the Surya Namaskar steps are very scientific and practical science ancient time but still it needs advance modern scientific justification to spread it globally, keeping this thing into the mind the present review has been framed to revalidate sacred steps of Surya Namaskar on the basis of available evidence based studies.

  17. 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...

  18. STANDARDIZATION OF SURYA SHEKHARA RAS: A KUPI PAKWA RASAYANA

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    Neha Arya

    2013-10-01

    Full Text Available Demand and acceptance of rasa aushadhis would not increase until unless these mineral and metallic preparations, particularly those which contain heavy metals like Surya Shekhara Ras are standardized. Surya Shekhara Ras is a typical herbo-mineral Kupipakwa rasayana indicated for fever especially in viral fevers. The present work highlights the procedures and techniques adopted for the physico-chemical analysis and characterization of three different samples of Surya Shekhara Ras obtained by well defined process in Rasa Shastra text. Pharmaceutically prepared Surya Shekhara Rasa was subjected for physico-chemical analysis, X-ray diffraction (X-RD, Inductive Coupled Plasma with Optical Emission Spectrometry (I.C.P.O.E.S., Scanning Electron Microscopy (SEM, Energy Dispersive X-ray Analysis (EDAX and Fourier Transform Infrared Spectrometry (FT-IR with a view to standardize the drug through modern techniques. Values of Physico-chemical studies of all three samples were almost in the same range. HgS compound form was detected in X-RD study of 3 samples with Hexagonal crystal structure. I.C.P.O.E.S showed presence of 94 % Hg. FT-IR analysis reveals the presence of similar organic functional groups in three samples of Surya Shekhara Ras. As final results and quantity of elements in all three samples of Surya Shekhara Ras were in same range, it reveals the uniformity in quality of prepared medicine and purity of drug. Thus suggests that the adopted method of preparation can be taken as standard.

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

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    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

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

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    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.

  1. 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...

  2. 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...

  3. Pengaruh Budaya Organisasi, Kepemimpinan, dan Motivasi Kerja terhadap Kepuasan Kerja Karyawan CV Surya Raya

    Directory of Open Access Journals (Sweden)

    Laksmi Sito Dwi Irvianti

    2012-05-01

    Full Text Available This research was conducted on CV Surya Raya which is engaged in car shipping. The aim of this study is to determine the influence of organization culture, leadership, and working motivation partially to employees’ satisfaction in CV Surya Raya. The data was collected by conducting interviews with the company and distributing questionnaires to 67 employees as respondents and then analyzed using linear regression analysis method. From the research results, leadership variable does not have a significant impact on employees' job satisfaction in CV Surya Raya. Whereas, the motivation variable has greater influence on job satisfaction of CV Surya Raya employees compared to the organization's culture.

  4. 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%.

  5. 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....

  6. 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...

  7. 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 ...

  8. 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),...

  9. Recent SEL experiments and studies

    Science.gov (United States)

    Pajerski, Rose; Smith, Donald

    1993-01-01

    The studies discussed in this paper are all examples of activities that are performed as part of the Software Engineering Laboratory's (SEL's) process improvement model. Using this model, the SEL starts by understanding the product and process, then assesses the impact of new technologies, and finally packages what was learned. The preliminary examination of maintenance effort, error, and change profiles to establish a maintenance baseline exemplifies understanding-phase activities. The ongoing testing study that is examining the effects of various testing approaches on process and product measures is an example of typical assessing efforts. Finally, the derivation of cost and schedule estimation models from locally driven factors such as reuse level, application type, and language is an example of experience packaging. In the SEL, no study is ever really completed. Studies will be repeated and iterated upon in the future as part of the ongoing software improvement process.

  10. 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.  

  11. 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...

  12. 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.

  13. BERBAGAI ALTERNATIF BAHAN BAKU LOKAL UNTUK PAKAN IKAN

    Directory of Open Access Journals (Sweden)

    Sukarman Sukarman

    2011-06-01

    Full Text Available Sebagian besar bahan baku pakan ikan merupakan barang impor, sehingga harga pakan yang dihasilkan menjadi mahal. Perlu dicari alternatif bahan baku lokal yang bisa dipakai untuk pakan ikan dan udang. Tujuan makalah ini adalah membahas beberapa bahan baku alternatif lokal, nilai nutrisi dan rekomendasi penggunaannya dalam pakan ikan dan udang. Hasil studi literatur menunjukkan bahwa limbah industri mie instan, tepung daun singkong, homini, limbah roti, tepung rebon, dan MBM bisa dimanfaatkan sebagai bahan pakan alternatif untuk ikan dan udang. Bahan lainnya juga memungkinkan dimanfaatkan sebagai bahan baku pakan ikan asal diketahui aspek-aspek nutrisi baik proksimat, asam amino, vitamin, mineral, kecernaan dan anti nutrisinya, serta telah dilakukan uji coba pada ikan.

  14. 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...

  15. 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...

  16. Material Kedokteran Gigi Yang Mempunyai Bahan Dasar Polimer

    OpenAIRE

    Ismail, Amir Faizal

    2011-01-01

    Banyak material di kedokteran gigi yang mempunyai bahan basis polimer. Bahan-bahan ini dapat dibagi kepada empat bagian yaitu (1) elastomer (2) polimer komposit (3) akrilik dan (4) agar dan alginat. Polimer terbentuk dari hasil gabungan beberapa unit molekul mer (tunggal). Terdapat tiga faktor utama yang mempengaruhi susunan suatu rantai polimer yaitu berat molekul, cross-linking dan jumlah copolymer. Polimer terhasil dari suatu proses yang dinamakan proses polimerisasi. Proses polimerisa...

  17. PERSIAPAN DAN PENYUSUNAN BAHAN BAKU LOKAL UNTUK FORMULASI PAKAN IKAN

    Directory of Open Access Journals (Sweden)

    Kamaruddin Kamaruddin

    2008-12-01

    Full Text Available Usaha budidaya ikan dalam keramba jaring apung masih mengandalkan pasok pakan alami berupa ikan rucah yang dapat mencapai 60%--70% dari total biaya produksi. Karena itu perlu pengadaan pakan buatan yang memenuhi persyaratan kebutuhan nutrisi bagi pembesaran ikan, baik makro maupun mikro nutrien diperlukan sebagai informasi dasar dalam upaya pengembangan pakan buatan. Terdapat banyak bahan baku lokal yang sangat potensial dijadikan bahan baku pakan, seperti: ikan rucah, rebon, kepala udang (limbah cold storage, tepung darah (limbah pemotongan hewan, dan tepung DOC (limbah penetasan ayam. Dari beberapa bahan baku tersebut telah dianalisis kandungan nutrisinya dan telah dilakukan uji kecernaan masing-masing bahan menunjukkan bahwa bahan tersebut dapat mensubstitusi bahan baku impor tepung ikan sebagai sumber protein hewani. Selain bahan hewani, juga telah dilakukan analisis kandungan nutrisi bahan nabati lokal, seperti pemanfaatan bungkil kelapa sawit, bungkil kopra, dan dedak halus. Untuk menghasilkan pakan yang berkualitas, maka semua bahan harus dalam bentuk tepung yang halus, serta mempunyai keseimbangan antara protein, lemak, dan energi serta suplemen vitamin dan mineral.

  18. Penentuan Properties Bahan Bakar Batubara Cair untuk Bahan Bakar Marine Diesel Engine.

    Directory of Open Access Journals (Sweden)

    Nanang Juhantoro

    2012-09-01

    Full Text Available Coal water mixture (CWM adalah bahan bakar campuran antara batubara dan air dengan peambahan zat aditif yang dapat membentuk suspensi cairan homogen dan stabil selama penyimpanan, pengangkutan, dan pembakaran. Tahap pertama pembuatan bahan bakar batubara cair adalah dengan teknologi Upgrading Brown Coal (UBC. Pada proses upgrading ini digunakan larutan kerosen dan aspal sebagai media upgradingnya, sedangkan rasio antara larutan kerosen-aspal dengan batubara adalah 1,25. Kemudian dilanjutkan dengan pembuatan slurry bahan bakar batubara cair dengan teknologi Coal Water Mixtures (CWM. Pada proses CWM ini diameter batubara maximum 38 um. Komposisi antara batubara dengan air adalah 40% : 60%. Untuk menstabilkan CWM digunakan  bahan aditif berupa CarboMextyl Cellulose (CMC dan sebagai dipersant digunakan Alkyl Benzene Sulfonic  (ABS.  Perbandingan masing-masing aditif pada  komposisi campuran adalah 0.01% CMC dan 0.07% ABS. Dalam penelitian ini dilakukan variasi temperatur pemanasan untuk mengetahui hasil fisik maupun karakteristik bahan bakar batubara cair. Dari hasil fisik dan karakteristik diperoleh keadaan batubara cair memiliki kemiripan dengan Heavy Fuel Oil (HFO pada temperatur pemanasan 15 0C dan 50 0C.

  19. ANALISIS PERPUTARAN RADIASI SURYA TERHADAP KINERJA SEL FOTOLISTRIK SEBAGAI ENERGI RAMAH LINGKUNGAN DI NUSA PENIDA KABUPATEN KLUNGKUNG PROVINSI BALI

    Directory of Open Access Journals (Sweden)

    I N. Suastaka

    2015-08-01

    Full Text Available Photoelectric cells is an equipment made of semiconductor material of Silicone (Si14 functioned to catchand converse sun light to become electric energy directly. Through photoelectric phenomenon, that sun lightas particles with frequency/wavelength of certain light can release electrons in a material. This electrons’movement can produce electric current. The aim of this research was to find out the performance of aphotoelectric cells collector in conversing sun light to become electric energy due to the rotation of solarradiation in Nusa Penida.The research was conducted at PLTS electric home solar system Nusa Penida for 5 days the measurementto the parameter of Current (Isc and Voltage (Vsc. Each measurement had duration of lighting for 8 hourseach from 09.00 until 16.00 Central Indonesian Time, with time interval of 30 minutes. Measurement anddata analysis produced in the research on Saturday, June 29th 2013 obtained: the amount of solar radiationarrived at earth’s outer atmosphere was 1321.90 W/m2, and passed along to earth’s surface at 621.29 W/m2,and received by photoelectric cells collector as heat power at 113.63 Watt, and efficiency produced was 25.3%,and electric power produced was 28.74 Watt, and can be equalized with fossil energy of 0.0237 liter ofgasoline, or equivalent to 106.65 rupiah. It meant that, photoelectric cells collector with area of 50 x 110cm2in a day can protect earth from global warming of 28.74 Watt, in using of fossil energy at 0.0237 liter ofgasoline.The efficient performance of photoelectric cells was still considered small. In order to achieve big capacityof electric power required a lot of collector modules and large area, so that with the growing of semiconductortechnology, it is expected that whenever possible it can reduce electron binding energy on material, andoptimize solar lighting system to photoelectric cells collector modules, so that the efficient performance ofphotoelectric cells can be expected to be above 90%.

  20. 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.

  1. 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

  2. PICUNG (PANGIUM EDULE SEBAGAI BAHAN PENGAWET IKAN

    Directory of Open Access Journals (Sweden)

    Hermana Hermana

    2012-11-01

    Full Text Available (Pangium edule sebagai bahan pengawet ikan (Pitjung (Pangium edule as a preservative for fish. Pitjung (Pangium edule contains an antiseptic substance. It can be used as a preservative for fish in combination with salt. The self-life of fish will be increased if, in addition to 3% salt, certain amounts of pitjung are added. Sensory evaluation indicated that a combination of 6% pitjung with 3% salt could keep the fresh characteristics of fish for 6 days, therefore is useful to preserve fish during transport. Cara mengawet ikan seperti dilakukan orang di Labuan Jawa Barat, menggunakan picung (Pangium edule dan garam. Dengan cara ini garam yang digunakan lebih sedikit daripada yang diperlukan untuk mengasin. Picung terdapat di seluruh Indonesia, memungkinkan penggunaan cara ini di daerah-daerah penangkapan ikan yang kekurangan es atau garam. Penelitian ini bertujuan menilai kegunaan cara tersebut sehubungan dengan kesukaan konsumen.

  3. 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.

  4. 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 ...

  5. 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 ...

  6. 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.

  7. 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...

  8. 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.

  9. 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.

  10. 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 ...

  11. 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...

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

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

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    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

  14. PENGGUNAAN ENZIM CAIRAN RUMEN SEBAGAI ALTERNATIF UNTUK MENDUKUNG PEMANFAATAN BAHAN BAKU PAKAN IKAN LOKAL

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    Wahyu Pamungkas

    2012-06-01

    Full Text Available Pemanfaatan bahan baku pakan alternatif telah banyak dilakukan yaitu dengan menggunakan bahan baku pakan lokal yang mudah didapat dan biasanya berupa limbah yang belum termanfaatkan secara optimal. Namun, upaya pemanfaatan bahan baku pakan lokal tersebut masih mengalami kendala salah satunya adalah tingginya kandungan serat kasar yaitu lebih dari 7%. Kandungan serat kasar yang tinggi menyebabkan bahan baku lokal tersebut perlu diolah lagi agar dapat digunakan sebagai bahan baku pakan ikan. Salah satu alternatif teknologi yang dapat digunakan adalah pemanfaatan cairan rumen untuk menurunkan kandungan serat kasar bahan pakan. Cairan rumen merupakan salah satu sumber bahan alternatif yang murah dan dapat dimanfaatkan dengan mudah sebagai sumber enzim hidrolase. Pengolahan bahan baku pakan lokal hasil limbah agro industri dan limbah peternakan menggunakan enzim cairan rumen akan dapat memberikan dampak peningkatan nilai nutrisi bahan pakan lokal sehingga dapat digunakan menjadi sumber pakan alternatif yang berkualitas.

  15. 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.

  16. PENGARUH PENGUKUSAN TERHADAP KANDUNGAN ASAM SIANIDA DALAM BEBERAPA BAHAN MAKANAN

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    Uken S. Soetrisno

    2012-11-01

    Full Text Available Telah dilakukan pengamatan pengaruh pengukusan terhadap kandungan asam sianida dari enam jenis bahan makanan yaitu keluwak, picung, terung ungu kecil, rebung, umbi singkong dan daun singkong. Analisis asam sianida digunakan metoda Volhard berdasarkan prinsip argentometri. Kandungan air dianalisis dengan metoda pengeringan dalam oven 105 derajat celcius. Sebelum pengukusan kandungan asam sianida tertinggi terdapat pada daun singkong yaitu 149,4 ppm, kemudiian keluwak sebesar 135,7 ppm. Umbi singkong dan rebung memiliki kadar asam sianida yang sama, yaitu 119,8 dan 119,9 ppm. Kandungan sianida terendah sebelum pengukusan dijumpai pada terung ungu, yaitu 27,4 ppm. Setelah pengukusan penurunan asam sianida tertinggi terdapat dalam bahan makanan yang mengandung sianida terendah yaitu terung ungu. Penurunan terendah terjadi pada keluwak yang mengandung sianida cukup tinggi. Kandungan air setelah pengukusan meningkat, peningkatan tertinggi pada terung ungu, dan terendah pada rebung.

  17. PENGARUH PENGUKUSAN TERHADAP KANDUNGAN ASAM SIANIDA DALAM BEBERAPA BAHAN MAKANAN

    OpenAIRE

    Uken S. Soetrisno; Suryana Purawisastra

    2012-01-01

    Telah dilakukan pengamatan pengaruh pengukusan terhadap kandungan asam sianida dari enam jenis bahan makanan yaitu keluwak, picung, terung ungu kecil, rebung, umbi singkong dan daun singkong. Analisis asam sianida digunakan metoda Volhard berdasarkan prinsip argentometri. Kandungan air dianalisis dengan metoda pengeringan dalam oven 105 derajat celcius. Sebelum pengukusan kandungan asam sianida tertinggi terdapat pada daun singkong yaitu 149,4 ppm, kemudiian keluwak sebesar 135,7 ppm. Umbi si...

  18. 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...

  19. 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...

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

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    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.

  1. [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

  2. 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...

  3. EFEK PEMBERIAN KOMBINASI BUAH SIRIH (Piper betle L FRUIT, DAUN MIYANA (Plectranthus scutellarioides (L. R. BR. LEAF, MADU DAN KUNING TELUR TERHADAP PENINGKATAN AKTIVITAS DAN KAPASITAS FAGOSITOSIS SEL MAKROFAG

    Directory of Open Access Journals (Sweden)

    Yun Astuti Nugroho

    2012-11-01

    Full Text Available Latar belakang, kombinasi buah sirih (Piper betle L, daun miyana (Plectranthus scutellarioides (L. R. BR, madu dan kuning telur dimanfaatkan oleh masyarakat Sulawesi Utara untuk mengobati malaria.  Diharapkan kombinasi buah sirih (Piper betle L, daun miyana (Plectranthus scutellarioides (L. R. BR, madu dan kuning telur juga memiliki potensi untuk merangsang respon imun. Penelitian ini dilakukan untuk mengetahui pengaruh pemberian kombinasi buah sirih (Piper betle L, daun miyana (Plectranthus scutellarioides (L. R. BR, madu dan kuning telur terhadap aktivitas dan kapasitas sel makrofag. Metode, tiga puluh ekor mencit Swiss dibagi ke dalam 5 grup. Grup I mendapatkan air suling, grup II mendapatkan 0,55 mg/20g BB Stimuno. Sementara kelompok perlakuan: grup III sampai V masing-masing mendapatkan  0,07 mL; 0,21 mL; 0,6 mL/20 g BB. Bahan uji diberikan secara oral pada hari pertama sampai dengan ketujuh. Pada hari kedelapan, kepada masing-masing mencit disuntik secara intraperitoneal bakteri Staphylococcus aureus (SA. Aktivitas dan kapasitas sel  makrofag dihitung dari sediaan apus cairan peritoneum dengan menghitung persentase fagosit yang melakukan fagositosis dari 100 fagosit. Kapasitas fagositosis ditetapkan berdasarkan jumlah SA yang difagositosis oleh 50 fagosit aktif. Hasil, aktivitas dan kapasitas sel makrofag meningkat seiring dengan peningkatan dosis kombinasi buah sirih (Piper betle L, daun miyana (Plectranthus scutellarioides (L. R. BR, madu dan kuning telur dibandingkan dengan kontrol negatif. Kata  kunci: Buah sirih, Piper betle L, Makrofag, Fagositosis 

  4. Analisa Performa Kolektor Surya Tipe Parabolic Trough Sebagai Pengganti Sumber Pemanas Pada Generator Sistem Pendingin Difusi Absorpsi

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    Ardika Oki Pratama Suwito

    2013-12-01

    Full Text Available Kolektor surya merupakan sebuah alat yang dirancang untuk mengumpulkan panas dengan menyerap sinar matahari. Penelitian dilakukan pada kolektor surya tipe parabolic trough yang diintregasikan dengan sistem pendingin difusi absorbsi atau Diffusi Absorbtion Refrigeration (DAR.Eksperimen dilakukan dengan mendesain ulang kolektor surya tipe parabolic trough yang sudah ada di jurusan Teknik Mesin ITS dengan menggantikan ukuran pipa absorber, diameter parabola dan fluida menggunakan oli diharapkan diperoleh unjuk kerja yang berbeda. Pengambilan data dilakukan dengan memvariasikan debit oli yang mengalir dalam pipa absorber, yaitu debit 4, 5, dan 6 liter/jam dan penelitian dilakukan selama 1 bulan. Hasil yang didapat dari dilakukannya penelitian ini adalah dengan debit 4 liter/jam didapat temperatur oli out tertinggi sebesar 106.1 oC dengan intensitas matahari yang tercatat sebesar 980.39 W/m2 pada saat jam 12.00 wib. Untuk effisiensi tertinggi yang dihasilkan tercatat saat debit 5 liter/jam sebesar 36.97 % saat intensitas matahari sebesar 1019.61 W/m2 dengan Q yang diterima 147.272 watt dan Q yang digunakan 54.448 watt.

  5. 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

  6. RANCANG SISTEM INFORMASI PERSEDIAAN BAHAN BAKU TERKOMPUTERISASI PT. KPL

    Directory of Open Access Journals (Sweden)

    Oviliani Yenty Yuliana

    2001-01-01

    Full Text Available This study was done at PT. KPL which produces plastic goods. In order to compete with other plastic goods manufacturers during the economic crisis, PT. KPL must be able to minimize production costs. One of the ways is to reduce raw materials cost. The results were obtained with production demand forecasting, using the Holt-Winter method; the Moving Average with Index Seasonal method; the Single Exponential Smoothing Method; the Double Exponential Smoothing method; and the Multiplicative Winter method. Based on economic order quantity, the minimum total inventory cost was obtained. Economic order quantity was entered into Material Requirement Planning (MRP. Relevant, accurate, and timely information is needed for planning and controlling raw material inventory. For that purpuse, a computerized conceptual information system for raw material inventory was designed. Abstract in Bahasa Indonesia : Studi Kasus dilakukan pada PT. KPL yang bergerak dibidang pembuatan barang-barang plastik. Agar PT. KPL dapat bersaing dengan perusahaan sejenis dimasa krisis ekonomi. PT. KPL harus mampu menekan biaya produksi seminimal mungkin. Salah satu cara dengan menekan biaya persediaan bahan baku. Dari hasil penelitian diperoleh ramalan kebutuhan produk, yang diolah menggunakan metode: Holt Winter, Moving Average With Index Seasonal, Single Exponential Smoothing, Double Exponential Smoothing, Multiplicative Winter. Berdasarkan Economic Order Quantity dihasilkan total biaya persediaan yang minimum. Jumlah pemesanan yang ekonomis dimasukkan kedalam Material Requirement Planning (MRP. Informasi yang cepat, tepat, dan akurat diperlukan dalam merencanakan dan mengendalikan persediaan bahan baku. Untuk itu dirancang sistem informasi tersediaan bahan baku terkomputerisasi secara konsep. Kata kunci: ramalan kebutuhan produk, EOQ, MRP, sistem informasi

  7. 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

  8. 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

  9. Association of SelS mRNA expression in omental adipose tissue with Homa-IR and serum amyloid A in patients with type 2 diabetes mellitus

    Institute of Scientific and Technical Information of China (English)

    DU Jian-ling; SUN Chang-kai; L(U) Bo; MEN Li-li; YAO Jun-jie; AN Li-jia; SONG Gui-rong

    2008-01-01

    Background Tanis was repoded as a putative receptor for serum amyloid A(SAA)involving glucose regulated protein in insulin regulated resistance.It was found to be dysregulated in diabetic rats(Psammomys obesus,Israeli sand rat)and its homologue for humans is SelS/AD-015.The present study analyzed mRNA expression of SelS in omental adipose tissue biopsies from patients with type 2 diabetes mellitus (T2DM),and age-and weight-matched nondiabetic patients,the relationship of SelS mRNA with Homa-IR and serum SAA level.Methods Human omental adipose tissues from ten cases of type 2 diabetic patients and twelve cases of nondiabetic individuals were analyzed for the expression level of SelS mRNA by semiquantitative polymerase chain reaction(PCR),Homa-IR estimated by standard formula and SM level by enzyme-linked immunosorbent assay(ELISA).Results SelS mRNA expression.Homa-IR and serum SAA were higher in T2DM sufferers than in nondiabeUc control group.SelS mRNA level was positively correlated with Homa-IR and SAA level in each group.Conclusions SelS protein may be involved in insulin resistarice;in Chinese with T2DM by acting as the SAA receptor,thus playing an important role in the development of T2DM and atherosclerosis.

  10. 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 ...

  11. Systematic survey on the prevalence of genes coding for staphylococcal enterotoxins SElM, SElO, and SElN

    NARCIS (Netherlands)

    Becker, Karsten; Friedrich, Alexander W; Peters, Georg; von Eiff, Christof

    2004-01-01

    Staphylococcus aureus remains a leading cause of food-poisoning with substantial impact on public health. Using a multiplex polymerase chain reaction-DNA enzyme immunoassay (PCR-DEIA), we studied the presence of genes encoding staphylococcal enterotoxin-like (SEl) superantigens sem, sen, and seo, as

  12. 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.

  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. 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

  15. 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

  16. 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

  17. 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 ...

  18. "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

  19. 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

  20. 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.

  1. 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

  2. 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.

  3. 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

  4. APLIKASI MODEL HOUSE OF RISK (HOR UNTUK MITIGASI RISIKO PADA SUPPLY CHAIN BAHAN BAKU KULIT

    Directory of Open Access Journals (Sweden)

    Bayu Rizki Kristanto

    2014-12-01

    Full Text Available Dalam aktivitas supply chain selalu berpotensi untuk timbul risiko, oleh sebab itu manajemen risiko sangat diperlukan untuk penanganan risiko. Pada perusahaan yang memproduksi sepatu kulit seperti PT. Karyamitra Budisentosa, dalam aktivitas supply chain bahan baku kulit memiliki peluang untuk timbul risiko. Oleh sebab itu perlu dilakukan analisa risiko dan rancangan aksi mitigasi, untuk memitigasi risiko atau gangguan yang berpeluang timbul pada supply chain bahan baku kulit tersebut. Penelitian ini dilakukan dengan menggunakan model house of risk yang terdiri dari 2 fase. Fase pertama yaitu pengidentifikasian risiko dan agen risiko, yang kemudian dilakukan pengukuran tingkat severity dan occurance serta perhitungan nilai aggregate risk priority (ARP. Fase kedua yaitu penanganan risiko. Setelah dilakukan penelitian diperoleh hasil bahwa terdapat 27 kejadian risiko dan 52 agen risiko. Terdapat 6 aksi mitigasi yang dapat digunakan, dengan harapan mampu memitigasi risiko pada supply chain bahan baku kulit.

  5. 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

  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. 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.

  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. 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'.

  10. 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

  11. PENGEMBANGAN MODEL PERSEDIAAN DENGAN MEMPERTIMBANGKAN WAKTU KADALUARSA BAHAN DAN FAKTOR INCREMENTAL DISCOUNT

    Directory of Open Access Journals (Sweden)

    Hari Prasetyo

    2005-12-01

    Full Text Available Penelitian ini bertujuan untuk menghasilkan model persediaan yang mempertimbangkan waktu kadaluarsa bahan dan faktor incremental discount untuk mendapatkan biaya total (total cost persediaan yang minimum. Model persediaan Economic Order Quantity (EOQ Single Item digunakan sebagai dasar pengembangan model. Algoritma pencarian solusi model dibuat untuk mendapatkan solusi dari model. Selain itu pada bagian akhir diberikan studi kasus implementasi model di PT. XYZ.

  12. 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

  13. PENGEMBANGAN PROGRAM VRML (VIRTUAL REALITY MODELLING LANGUAGE UNTUK E-LEARNING BERBASIS WEB TERINTEGRASI DALAM PHP-MySQL MATA KULIAH ILMU PENGETAHUAN BUMI DAN ANTARIKSA POKOK BAHASAN SISTEM TATA SURYA

    Directory of Open Access Journals (Sweden)

    Azwar Anas

    2012-01-01

    Full Text Available Pemahaman tentang fenomena sistem tata surya  membutuhkan daya imaginasi yang cukup. Hal ini merupakan salah satu kesulitan dalam memahami materi tentang sistem tata surya, sehingga diperlukan adanya visualisasi untuk membantu mengatasi kesulitan tersebut. Salah satu visualisasi adalah dengan menggunakan program visualisasi 3D. Pembuatan program diawali dengan identifikasi masalah dan persiapan perangkat lunak. Dalam hal ini program yang digunakan adalah VRML(Virtual Reality Modelling Language. Pelaksanaan pembuatan program dimulai dengan memodelkan gejala-gejala fisis yang terkait dengan fenomena sistem tata surya. Bahasa pemrograman VRML hanya mampu melakukan perhitungan dasar yang sangat sederhana. Untuk perhitungan data yang kompleks digunakan bantuan Microsoft Office Excel. Data yang dihasilkan dari perhitungan menggunakan Microsoft Office Excel kemudian dimasukkan ke dalam list program VRML. Hasil penelitian berupa pemodelan sistem tata surya yang diintergrasikan dalam e-learning berbasis web. Untuk menampilkan hasil program ini digunakan browser Cortona VRML player. Tampilan 3D yang dihasilkan menarik dan interaktif. User dapat mengamati model 3D dari berbagai sudut pengamatan dengan menggunakan toolbar yang tersedia pada browser. Kata kunci : VRML, visualisasi 3D, sistem tata surya

  14. 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...

  15. SelMa - Self-guided Learning in Teaching Mathematics

    Directory of Open Access Journals (Sweden)

    Wolfgang WEBER

    2004-04-01

    Full Text Available In the project ``Self-guided Learning in Teaching Mathematics - SEC II'' (SelMa, five authoring schools are working out scenarios, media and materials for phases of self-guided learning, which will be tested systematically by 10 trial schools with regard to their everyday suitability. In this paper three approaches to such learning arrangements (independent learning centre, jigsaw classroom and learning at stations are being outlined and relevant experiences are being made available. Learning diaries prove to be useful for the learners' reflection of their learning process. The development as well as the management of such learning arrangements does place new demands on the teachers.

  16. Maksilektomi Inferior pada Karsinoma Sel Skuamosa Palatum Durum

    Directory of Open Access Journals (Sweden)

    Sukri Rahman

    2016-01-01

    Full Text Available Abstrak          Karsinoma Palatum Durum adalah keganasan daerah kepala dan leher yang jarang terjadi dimana setengah diantaranya merupakan Karsinoma Sel Skuamosa. Pada fase awal keganasan ini dapat bersifat asimptomatis namun dapat juga menimbulkan gejala berupa ulkus yang terasa nyeri pada perkembangan penyakitnya. Operasi maksilektomi inferior merupakan salah satu pilihan tindakan yang dapat dilakukan dalam tatalaksana kasus ini, diikuti oleh pemberian radioterapi. Kasus ini dibuat untuk memahami penatalaksanaan karsinoma palatum durum. Dilaporkan kasus seorang laki-laki 45 tahun dengan diagnosis Karsinoma Sel Skuamosa Palatum Durum (Well to Moderately Differentiated Keratinized stadium IVa (T4aN0M0 dilakukan operasi maksilektomi inferior, namun tidak diikuti dengan radioterapi karena pasien menolak. Maksilektomi inferior merupakan pilihan pembedahan pada tumor yang terbatas pada palatum, lantai sinus maksila dan kavum nasi. Prognosis karsinoma sel skuamosa palatum durum cukup baik dan angka harapan hidup lima tahun akan bertambah bila dilakukan operasi diikuti dengan pemberian radioterapi. Kata kunci: Karsinoma sel skuamosa, maksilektomi inferior, radioterapi AbstractCarcinoma of the hard palate is a rare head and neck cancer in which half of it was Squamous Cell Carcinoma. In the initial phase of this malignancy may be asymptomatic, but can also cause symptoms such as painful ulcers in the development of the disease. Inferior maxillectomy is one of the choice of operation that can be performed, followed by radiotherapy to understand the management of carcinoma of the hard palate. Reported one case of a man 45 years old with diagnosis Squamous Cell Carcinoma of hard palate (Well to Moderately Differentiated Keratinized stage IVa (T4aN0M0 treated by inferior maxillectomy surgery, but not followed by radiotherapy because the patient refused. Inferior Maksilektomi is a surgical option in tumor that limited to the palate, floor of the

  17. 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

  18. 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.

  19. 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

  20. 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...

  1. 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...

  2. 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...

  3. 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

  4. An ancient family of SelB elongation factor-like proteins with a broad but disjunct distribution across archaea

    Directory of Open Access Journals (Sweden)

    Hauryliuk Vasili

    2011-01-01

    Full Text Available Abstract Background SelB is the dedicated elongation factor for delivery of selenocysteinyl-tRNA to the ribosome. In archaea, only a subset of methanogens utilizes selenocysteine and encodes archaeal SelB (aSelB. A SelB-like (aSelBL homolog has previously been identified in an archaeon that does not encode selenosysteine, and has been proposed to be a pyrrolysyl-tRNA-specific elongation factor (EF-Pyl. However, elongation factor EF-Tu is capable of binding archaeal Pyl-tRNA in bacteria, suggesting the archaeal ortholog EF1A may also be capable of delivering Pyl-tRNA to the ribosome without the need of a specialized factor. Results We have phylogenetically characterized the aSelB and aSelBL families in archaea. We find the distribution of aSelBL to be wider than both selenocysteine and pyrrolysine usage. The aSelBLs also lack the carboxy terminal domain usually involved in recognition of the selenocysteine insertion sequence in the target mRNA. While most aSelBL-encoding archaea are methanogenic Euryarchaea, we also find aSelBL representatives in Sulfolobales and Thermoproteales of Crenarchaea, and in the recently identified phylum Thaumarchaea, suggesting that aSelBL evolution has involved horizontal gene transfer and/or parallel loss. Severe disruption of the GTPase domain suggests that some family members may employ a hitherto unknown mechanism of nucleotide hydrolysis, or have lost their GTPase ability altogether. However, patterns of sequence conservation indicate that aSelBL is still capable of binding the ribosome and aminoacyl-tRNA. Conclusions Although it is closely related to SelB, aSelBL appears unlikely to either bind selenocysteinyl-tRNA or function as a classical GTP hydrolyzing elongation factor. We propose that following duplication of aSelB, the resultant aSelBL was recruited for binding another aminoacyl-tRNA. In bacteria, aminoacylation with selenocysteine is essential for efficient thermodynamic coupling of SelB binding to t

  5. 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....

  6. 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

  7. 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

  8. Judokas Indrek Pertelson rajab veel sel aastal kaks spordikeskust / Merike Teder

    Index Scriptorium Estoniae

    Teder, Merike

    2005-01-01

    Tippspordiga lõpparve teinud judoka Indrek Pertelson avab veel sel aastal Tallinnas kaks perespordikeskust, kus peale idamaiste võitlusviiside harrastamise saab ka tervist kontrollida ja jõudu taastada

  9. Uudised : Tormisega Amsterdamis. AS Ösel toetab Voices of Europe'i kontserti / Ingrid Peek

    Index Scriptorium Estoniae

    Peek, Ingrid

    2000-01-01

    15. aug. dirigeeris E. Klas Amsterdami Concertgebouws V. Tormise "Avamängu nr. 2". AS Ösel toetab 100 000 krooniga 1. sept. toimuvat kontserti, kus tuleb ettekandele A. Pärdi uudisteos "which was the son of"

  10. KARAKTERISTIK FISIKOKIMIA PATI SAGU HASIL PENGERINGAN SECARA FLUIDISASI MENGGUNAKAN ALAT PENGERING CROSS FLOW FLUIDIZED BED BERTENAGA SURYA DAN BIOMASSA

    Directory of Open Access Journals (Sweden)

    Abadi Jading

    2012-04-01

    Full Text Available PHYSICOCHEMICAL CHARACTERISTICS OF SAGO STARCH OBTAINED FROM FLUIDIZED BED DRYING USING SOLAR AND BIOMASS POWERED CROSS FLOW FLUIDIZED BED DRYER. The research aim is to study the comparative quality of sago starch drying results using cross flow fluidized bed dryer powered by solar and biomass in conventional drying, particularly the chemical composition and physicochemical characteristics. This research was conducted through a drying phase of wet sago starch using a cross flow fluidized bed dryer, and drying in conventional as well as dried sago starch quality testing results are drying. The results of this study indicate that dry sago starch which has been drained by means of cross flow fluidized bed dryer has a chemical composition that does not vary much with starch which is dried by conventional drying, so that the dried sago starch produced by the dryer is very good. On the other hand the use of dryers is the more correct because the physicochemical properties of sago starch using a low drying temperature and drying time is short. Tujuan penelitian ini adalah mempelajari perbandingan kualitas pati sagu hasil pengeringan menggunakan alat pengering cross flow fluidized bed bertenaga surya dan biomassa dengan pengeringan secara konvensional, khususnya komposisi kimia dan karakteristik fisikokimia. Penelitian ini dilakukan melalui beberapa tahapan yaitu pengeringan pati sagu basah menggunakan alat pengering cross flow fluidized bed, pengeringan secara konvensional serta pengujian kualitas pati sagu kering hasil pengeringan. Hasil dari penelitian ini menunjukkan bahwa pati sagu kering yang telah dikeringkan dengan alat pengering cross flow fluidized bed memiliki komposisi kimia yang tidak berbeda jauh dengan pati yang dikeringkan dengan cara pengeringan secara konvensional, sehingga pati sagu kering yang dihasilkan oleh alat pengering tersebut sangat baik. Di sisi lain penggunaan alat pengering ini semakin memperbaiki sifat fisikokimia pati

  11. Analisis Kinerja Supplier Bahan Baku Menggunakan Integrasi Supply Chain Operations Refrence dan Analytic Hierarchy Process PT. Asia Raya Foundry

    OpenAIRE

    Jati, Wahyu Listyo

    2015-01-01

    Persaingan bisnis yang semakin cepat menuntut PT. Asia Raya Foundry sebagai salah satu perusahaan yang bergerak dibidang manufaktur pengecoran logam untuk produksi spare part mesin pabrik perkebunan dan alat berat harus memperhatikan keinginan konsumen terhadap produk. Berdasarkan penelitian yang dilakukan terdapat keluhan dari pabrik terhadap pasokan bahan baku langsung yang diperoleh dari supplier sehingga menyebabkan adanya keterlambatan dalam penyelesaian produk. Gangguan yang disebabkan ...

  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. 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.

  14. Pengaruh macam limbah organik dan pengenceran terhadap produksi biogas dari bahan biomassa limbah peternakan ayam

    Directory of Open Access Journals (Sweden)

    SUNARTO

    2012-05-01

    Full Text Available Pamungkas GS, Sutarno, Mahajoeno E. 2012. Pengaruh macam limbah organik dan pengenceran terhadap produksi biogas dari bahan biomassa limbah peternakan ayam. Bioteknologi 9: 18-25. Kelangkaan bahan bakar merupakan masalah penting saat ini, sehingga diperlukan berbagai alternative sumbernya. Dengan sistem biodigester anaerob, limbah peternakan ayam dengan penambahan limbah organik lain dapat menghasilkan biogas, sebagai sumber energi terbarukan (renewable energy. Tujuan penelitian ini adalah (i menguji produksi biogas dari pencerna anaerob limbah peternakan ayam dengan perlakuan pengenceran, dan penambahan berbagai substrat sampah organik skala laboratorium, (ii mengetahui produksi biogas dari pencerna anaerob sistem curah limbah peternakan ayam dengan frekuensi agitasi berbeda pada skala semi pilot. Penelitian dilakukan dua tahap yaitu penelitian skala laboratorium dan skala semi pilot. Rancangan percobaan menggunakan pola Rancangan Acak Lengkap (RAL yang terdiri dari 2 faktor yaitu, rasio pengenceran, dan penambahan substrat. Hasil dari produksi biogas terbaik direkomendasikan pada penelitian skala semi pilot sistem curah. Perlakuan dalam tahapan semi pilot dengan interval waktu pengadukan, yaitu 4 jam/hari dan 8 jam/hari. Produksi biogas tertinggi diperoleh dari penyampuran kotoran ayam dengan eceng gondok pengenceran 1:1 sebesar 0,60 L dalam 6 minggu dan efisiensi perombakan COD, TSS, VS adalah 63,80%; 14,79%; 75,14%. Pada sekala semi pilot sistem curah dengan frekuensi pengadukan 8 jam/hari, diperoleh hasil biogas tertinggi sebesar 624,99 L dalam 6 minggu.

  15. 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

  16. KEANEKARAGAMAN KARAKTER TANAMAN KELAPA (Cocos nucifera L. YANG DIGUNAKAN SEBAGAI BAHAN UPACARA PADUDUSAN AGUNG

    Directory of Open Access Journals (Sweden)

    Eniek Kriswiyanti

    2014-03-01

    Full Text Available The study was aimed to identify the characteristic variations of the coconuts (Cocos nucifera L. trees that are used as materials for the Padudusan Agung ceremony in Bali. Exploration, interview, and observation of character variations of coconuts have been conducted from coconut plantation area from each regency in Bali. The characteritations was identified based on measurements and observations of parts of plant according to “Discriptors for Coconuts”. The result shows that there was a narrow variation on the stem and leaf characters (2.81-11.83%, while high variations found on the fruit numbers in a bunche for the generative characters (42.8%. Padudusan Agung ceremony uses eleven types (cultivars of coconuts. Those are: gadang, gading, bulan, and surya with green, yellow, white, red epicarpium colours respectively. Young fruit of Udang coconuts have red mesocarpium, sudamala has double spathas, bingin has root grown on stem, be julit has plicated primordium leaves, bojog has hush likes the color of monkey hairs, ancak has branched stem, and rangda has petiole twisted on the top of the stem.

  17. 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.

  18. 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...

  19. SEL2 servicing: increased science return via on-orbit propellant replenishment

    Science.gov (United States)

    Reed, Benjamin B.; DeWeese, Keith; Kienlen, Michael; Aranyos, Thomas; Pellegrino, Joseph; Bacon, Charles; Qureshi, Atif

    2016-07-01

    Spacecraft designers are driving observatories to the distant Sun-Earth Lagrange Point 2 (SEL2) to meet ever-increasing science requirements. The mass fraction dedicated to propellant for these observatories to reach and operate at SEL2 will be allocated with the upmost care, as it comes at the expense of optics and instrument masses. As such, these observatories could benefit from on-orbit refueling, allowing greater dry-to-wet mass ratio at launch and/or longer mission life. NASA is developing technologies, capabilities and integrated mission designs for multiple servicing applications in low Earth orbit (LEO), geosynchronous Earth orbit (GEO) and cisluner locations. Restore-L, a mission officially in formulation, will launch a free-flying robotic servicer to refuel a government-owned satellite in LEO by mid 2020. This paper will detail the results of a point design mission study to extend Restore-L servicing technologies from LEO to SEL2. This SEL2 mission would launch an autonomous, robotic servicer spacecraft equipped to extend the life of two space assets through refueling. Two space platforms were chosen to 1) drive the requirements for achieving SEL2 orbit and rendezvous with a spacecraft, and 2) to drive the requirements to translate within SEL2 to conduct a follow-on servicing mission. Two fuels, xenon and hydrazine, were selected to assess a multiple delivery system. This paper will address key mission drivers, such as servicer autonomy (necessitated due to communications latency at L2). Also discussed will be the value of adding cooperative servicing elements to the client observatories to reduce mission risk.

  20. 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

  1. 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.

  2. 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...

  3. SEL as a Component of a Literature Class to Improve Relationships, Behavior, Motivation, and Content Knowledge

    Science.gov (United States)

    Shechtman, Zipora; Abu Yaman, Mary

    2012-01-01

    The study assesses the effect of social and emotional learning (SEL) integrated in a literature class, named here "affective teaching," as compared to conventional teaching. Dependent variables include relationships, behavior, motivation to learn, and content knowledge. Participants were 36 teacher trainees in one college in Israel and 1,137 fifth…

  4. 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

  5. Software Engineering Laboratory (SEL). Data base organization and user's guide, revision 1

    Science.gov (United States)

    Lo, P. S.; Wyckoff, D.; Page, J.; Mcgarry, F. E.

    1983-01-01

    The structure of the Software Engineering Laboratory (SEL) data base is described. It defines each data base file in detail and provides information about how to access and use the data for programmers and other users. Several data base reporting programs are described also.

  6. 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

  7. 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.

  8. 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

  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. Pengembangan Bahan Ajar Modul Elektrokimia untuk Siswa SMA Kelas XII IPA dengan Pendekatan Pembelajaran Inkuiri Terbimbing

    Directory of Open Access Journals (Sweden)

    Lilik Fatmawati

    2014-06-01

    Full Text Available Tujuan penelitian ini adalah mengetahui kelayakan, dan keefektifan modul elektrokimia un-tuk siswa SMA kelas XII hasil pengembangan. Modul Elektrokimia hasil pengembangan terdiri dari dua kegiatan belajar, yaitu untuk materi sel Volta dan untuk materi sel elektrolisis. Hasil penilaian oleh dua dosen kimia Universitas Negeri Malang dan dua guru kimia kelas XII sebagai ahli isi/materi pem-belajaran untuk kelayakan isi adalah 92,9%, untuk kelayakan dan kelengkapan penyajian adalah 91,1%, dan untuk kelayakan kebahasaan adalah 92,3%, yang tergolong kriteria sangat layak. Secara keseluruhan rata-rata nilai kelayakan tersebut adalah 92,1. Efektifitas modul hasil pengembangan di-tunjukkan oleh persepsi dan hasil belajar siswa. Persepsi siswa diperoleh dari penilaian siswa terhadap modul hasil pengembangan. Pada ujicoba lapangan terbatas diperoleh nilai rata-rata untuk seluruh aspek adalah 81,8 dari nilai maksimum 100. Perolehan rata-rata nilai hasil belajar siswa untuk aspek kognitif adalah 83,3, untuk aspek afektif adalah  82,3, dan untuk aspek psikomotorik adalah 83,8 dari nilai maksimum 100. Hasil keseluruhan penelitian menunjukkan bahwa Modul Elektrokimia untuk sis-wa SMA Kelas XII IPA hasil pengembangan sangat layak dan sangat efektif digunakan dalam proses pembelajaran.Kata kunci: inkuiri terbimbing, modul elektrokimia, model 4-D

  12. 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

  13. 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

  14. 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...

  15. 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.

  16. 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

  17. Thermodynamics of the GTP-GDP-operated conformational switch of selenocysteine-specific translation factor SelB.

    Science.gov (United States)

    Paleskava, Alena; Konevega, Andrey L; Rodnina, Marina V

    2012-08-10

    SelB is a specialized translation factor that binds GTP and GDP and delivers selenocysteyl-tRNA (Sec-tRNA(Sec)) to the ribosome. By analogy to elongation factor Tu (EF-Tu), SelB is expected to control the delivery and release of Sec-tRNA(Sec) to the ribosome by the structural switch between GTP- and GDP-bound conformations. However, crystal structures of SelB suggested a similar domain arrangement in the apo form and GDP- and GTP-bound forms of the factor, raising the question of how SelB can fulfill its delivery function. Here, we studied the thermodynamics of guanine nucleotide binding to SelB by isothermal titration calorimetry in the temperature range between 10 and 25 °C using GTP, GDP, and two nonhydrolyzable GTP analogs, guanosine 5'-O-(γ-thio)triphosphate (GTPγS) and guanosine 5'-(β,γ-imido)-triphosphate (GDPNP). The binding of SelB to either guanine nucleotide is characterized by a large heat capacity change (-621, -467, -235, and -275 cal × mol(-1) × K(-1), with GTP, GTPγS, GDPNP, and GDP, respectively), associated with compensatory changes in binding entropy and enthalpy. Changes in heat capacity indicate a large decrease of the solvent-accessible surface area in SelB, amounting to 43 or 32 amino acids buried upon binding of GTP or GTPγS, respectively, and 15-19 amino acids upon binding GDP or GDPNP. The similarity of the GTP and GDP forms in the crystal structures can be attributed to the use of GDPNP, which appears to induce a structure of SelB that is more similar to the GDP than to the GTP-bound form.

  18. 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.

  19. 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

  20. 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...

  1. 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

  2. Expressions of SEL 1L and C-erbB-2 in Gastric Cancer Tissues and Its Clinical Signiifcance

    Institute of Scientific and Technical Information of China (English)

    Xu Guanghui; Li Yu; Li Yan

    2014-01-01

    Objective: To investigate the expressions and clinical signiifcance of human sel-1-like (SEL 1L) gene and oncogene c-erbB-2 in gastric cancer tissue. Methods:SEL 1L and c-erbB-2 expressions in gastric cancer tissues of 96 patients with gastric cancer were detected by immunohistochemical method. Results: The positive expression rate of SEL 1L gene in gastric cancer tissue was 84.4% (81/96), and its expression was significantly associated with the differentiated degree of gastric cancer tissue (P=0.001), but had no association with the age, gender, tumor size, infiltration depth, lymphatic metastasis and TNM staging (P>0.05). The positive expression rate of c-erbB-2 was 70.8% (68/96), and its expression was related to the differentiated degree of gastric cancer tissue, inifltration depth, lymphatic metastasis and TNM staging (P=0.002,P0.05). SEL 1L and c-erbB-2 expressions had a signiifcantly positive correlation (r=0.568,P<0.01). Conclusion: Both SEL 1L and c-erbB-2 are highly expressed in gastric cancer tissues and their joint detection can be considered as a biomarker for identifying the high-risk patients with gastric cancer.

  3. BRIDGE TO TERABITHIA DAN ISLAND OF THE BLUE DOLPHIN SEBAGAI BAHAN AJAR BERMUATAN PENDIDIKAN KARAKTER

    Directory of Open Access Journals (Sweden)

    Abdu Rajab

    2015-05-01

    Full Text Available Tujuan penelitian ini adalah untuk menggambarkan: (1 Nilai-nilai pendidikan karakter yang termuat dalam novel Bridge to Terabithia dan Island of the Blue Dolphin (2 Sejauh mana novel-novel tersebut dapat dijadikan bahan ajar Bahasa Inggris bermuatan pendidikan karakter. Jenis penelitian ini adalah penelitian deskriptif kualitatif dengan menggunakan metode analisis isi. Penelitian kualitatif mengungkapkan gejala secara menyeluruh, dan sesuai dengan konteks permasalahannya dipecahkan melalui pengumpulan data dari latar alami dengan memanfaatkan diri peneliti sebagai instrumen kunci (Djukri dkk, 2010, p.18. Hasil penelitian menunjukkan bahwa: (1 Novel Bridge to Terabithia dan Island of the Blue Dolphin memberikan penggambaran contoh nilai-nilai pendidikan karakter dengan frekuensi dan variasi yang tinggi juga dengan kualitas penggambaran yang kuat dan realistis, (2 Kedua novel memiliki bahasa yang imajinatif dan kisah yang inspiratif, (3 Kedua novel relevan dengan tujuan pembelajaran Bahasa Inggris. ____________________________________________________________________________________________________________________ BRIDGE TO TERABITHIA AND ISLAND OF THE BLUE DOLPHIN AS INSTRUCTIONAL MATERIAL EMBODYING CHARACTER EDUCATION Abstract This study aims at describing: (1 Character education values embodied in the novel Bridge to Terabithia and Island of the Blue Dolphin, (2 The extent to which those novels can be utilized as English instructional material embodying character education.  This study is a descriptive qualitative research, which employs content analysis method. Qualitative research describes the entire indications based on the context of the matter which is solved through collecting data of natural context employing the researcher as key instruments (Djukri dkk, 2010, p.18.The results of the study show that: (1 Bridge to Terabithia and Island of the Blue Dolphin give examples of high frequency and high variation as well as strong and realistic

  4. 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

  5. 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

  6. KADAR ZAT GIZI MAKANAN JAJAN DI DESA CIJENGKOL: SUATU PERBANDINGAN ANTARA ANALISA KIMIA DAN PERHITUNGAN DAFTAR KOMPOSISI BAHAN MAKANAN

    Directory of Open Access Journals (Sweden)

    Krisdinamurtirin Krisdinamurtirin

    2012-11-01

    Full Text Available Kadar zat gizi beberapa makanan jajan dari desa Cijengkol Jawa Barat telah dibandingkan hasil analisa kimianya dengan hasil perhitungan dengan Daftar Kompisisi Bahan Makanan. Makanan jajan yang diteliti yaitu yang di desa tersebut dikenal namanya sebagai gegentur, puruy, noga wijen, kremes, goreng pisang sale, tape goreng, boder, gemblong.Kedua cara menghasilkan kadar zat gizi yang umumnya berbeda, yang secara statistik tidak berarti, kecuali untuk protein dan kalsium. Hal ini menunjukkan bahwa untuk lemak, hidrat arang, fosfor dan besi, hitungan dengan Daftar Komposisi Bahan Makanan tidak mempunyai penyimpanan yang besar, kecuali untuk protein dan kalsium. Untuk protein, hidrat arang, lemak dan fosfor, hasil hitungan lebih besar daripada analisa kimia. Sedangkan untuk kalsium dan besi, hitungan lebih kecil daripada analisa kimia.Penelitian lebih lanjut mengenai kadar zat gizi secara analisa kimia dibanding dengan perhitungan Daftar Komposisi perlu dilakukan baik terhadap makanan jajan maupun hidangan tunggal dan hidangan sehari-hari dari beberapa daerah sampel lainnya. Dari penelitian seperti ini akan didapatkan angka penyimpanan untuk mengadakan koreksi pada perhitungan penelitian makanan (dietary survey.

  7. 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

  8. AKTIVITAS ANTIPROLIFERASI ISOLAT 4 EKSTRAK PETROLEUM ETER DAUN Phaleria macrocarpa (Scheff. Boerl. PADA SEL KANKER SERVIKS MANUSIA (HeLa

    Directory of Open Access Journals (Sweden)

    Dwi Utami

    2011-11-01

    Full Text Available Kanker serviks merupakan penyebab kematian kedua wanita di Indonesia setelah kanker payudara. Mahkota dewa Phaleria macrocarpa (Scheff. Boerl telah dikenal oleh masyarakat dan digunakan secara tradisional untuk pengobatan kanker. Ekstrak petroleum eter daun mahkota dewa menunjukkan aktivitas antiproliferasi pada sel kanker serviks manusia (HeLa dengan IC50 9 µg/ml (Kintoko dan Hawariah, 2007. Tujuan penelitian ini untuk mengetahui aktivitas antiproliferasi isolat 4 ekstrak petroleum eter terhadap sel kanker serviks manusia (HeLa. Serbuk daun mahkota dewa disokletasi dengan petroleum eter, kemudian difraksi dengan etil asetat hingga diperoleh fraksi etil asetat. Fraksi etil asetat dilakukan kromatografi preparatif dengan fase gerak heksana : etil asetat (9:1. Aktivitas antiproliferasi terhadap sel HeLa ditetapkan harga LC50dan doubling time melalui uji sitotoksik dan pengamatan kinetika proliferasi dengan metode MTT. Hasil isolasi dengan kromatografi preparatif diperoleh lima isolat masing-masing dengan harga Rf : 0,05 ; 0,10 ; 0,20 ; 0,60 ; dan 0,90. Harga LC50 dari isolat 4 adalah sebesar 82,091 µg/ml. Isolat 4 menunjukkan penghambatan pertumbuhan sel HeLa dengan memperpanjang doubling time (16,495 jam dibanding kontrol sel (10,170 jam.

  9. 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

  10. 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...

  11. 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)

  12. 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

  13. 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.

  14. 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.

  15. 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

  16. 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.

  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. 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.

  19. 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

  20. 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)

  1. 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

  2. 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...

  3. TPRpred: a tool for prediction of TPR-, PPR- and SEL1-like repeats from protein sequences

    Directory of Open Access Journals (Sweden)

    Söding Johannes

    2007-01-01

    Full Text Available Abstract Background Solenoid repeat proteins of the Tetratrico Peptide Repeat (TPR family are involved as scaffolds in a broad range of protein-protein interactions. Several resources are available for the prediction of TPRs, however, they often fail to detect divergent repeat units. Results We have developed TPRpred, a profile-based method which uses a P-value-dependent score offset to include divergent repeat units and which exploits the tendency of repeats to occur in tandem. TPRpred detects not only TPR-like repeats, but also the related Pentatrico Peptide Repeats (PPRs and SEL1-like repeats. The corresponding profiles were generated through iterative searches, by varying the threshold parameters for inclusion of repeat units into the profiles, and the best profiles were selected based on their performance on proteins of known structure. We benchmarked the performance of TPRpred in detecting TPR-containing proteins and in delineating the individual repeats therein, against currently available resources. Conclusion TPRpred performs significantly better in detecting divergent repeats in TPR-containing proteins, and finds more individual repeats than the existing methods. The web server is available at http://tprpred.tuebingen.mpg.de, and the C++ and Perl sources of TPRpred along with the profiles can be downloaded from ftp://ftp.tuebingen.mpg.de/ebio/protevo/TPRpred/.

  4. 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.

  5. 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

  6. 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...

  7. 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.

  8. "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..."

  9. 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...

  10. 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...

  11. 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...

  12. 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...

  13. 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:...

  14. 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.

  15. 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

  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. 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

  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. 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...

  1. 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.

  2. 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...

  3. 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

  4. 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...

  5. 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

  6. 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.

  7. 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

  8. 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

  9. 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

  10. [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)

  11. [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.

  12. 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

  13. 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...

  14. 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...

  15. Analisis Pengaruh Susunan Komposit Laminat Graphene-TiO2 sebagai Lapisan Semikonduktor Terhadap Unjuk Kerja Dye Sensitized Solar Cell (DSSC

    Directory of Open Access Journals (Sweden)

    Wahyu Tirta Nugraha

    2015-03-01

    Full Text Available Penelitian mengenai sel surya mengalami peningkatan yang signifikan beberapa tahun terakhir. Khususnya penelitian tentang sel surya lanjutan, Dye Sensitized Solar Cell (DSSC.Karena fabrikasinya yang mudah dan murah dibandingkan dengan sel surya konvensional. Penelitian ini akan dilakukan untuk menghasilkan prototype DSSC. DSSC tersebut difabrikasi menggunakan susunan komposit laminat Graphene – TiO2 yang berbeda dengan metode Spincoating sebagai lapisan semikonduktor dan dye organik dari ekstrak Bunga Geranium. Lapisan semikonduktor dikarakterisasi menggunakan X –Ray Diffraction (XRD dan Scanning Electron Microscope (SEM untuk mengetahui terbentuknya lapisan Graphene-TiO2. Absorbansi larutan dye diuji menggunakan UV-Vis Spektrofotometer. Dan pengujian unjuk kerja kelistrikan diukur menggunakan I-V Keithley Instrumen.Hasil terbaik didapatkan pada susunan komposit laminat TiO2/Graphene/TiO2 (TGT dengan nilai daya maksimum sebesar 0.259 Wm-2 , nilai efisiensi sebesar 0.0241 % dan Fill Factor sebesar 0.42.

  16. 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.

  17. 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.

  18. 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

  19. 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.

  20. EFECTO DEL AGREGADO DE DIÉSEL-OIL SOBRE ALGUNOS PARÁMETROS MICROBIOLÓGICOS DEL SUELO CON Y SIN PRESENCIA DE PLANTAS

    Directory of Open Access Journals (Sweden)

    María Cristina Petenello

    2014-09-01

    Full Text Available La actividad industrial, el transporte de combustibles y las fugas de tanques y cañerías provocan frecuentemente derrames de hidrocarburos durante la manipulación y el uso de los mismos, que contaminan el suelo con el riesgo de alcanzar las capas freáticas. Dentro de los métodos de remediación de suelos contaminados, la fitorremediación es una de las técnicas de remoción de contaminantes para recuperar la salud del suelo que combina la acción de las plantas con los microorganismos asociados a ellas. En el presente trabajo se utilizó el proceso de remediación menos costoso, no se emplearon fertilizantes, ni se incorporaron bacterias seleccionadas por su capacidad remediadora, sino que se aprovechó la propia actividad de los microorganismos (atenuación natural. Ciertas propiedades biológicas del suelo pueden emplearse para monitorear la marcha de un proceso fitorremediador. En el experimento se emplearon dos concentraciones de diésel-oil en suelo (1 y 2%, con la presencia de plantas de Spartina argentinensis y Melilotus alba, se evaluaron la respiración, la biomasa microbiana y el cociente respiratorio en dos momentos. Hacia el final del experimento, la producción de CO2 se vio incrementada por la presencia de diésel-oil. La biomasa microbiana aumentó con la menor concentración de diésel-oil pero la mayor concentración provocó probablemente un efecto tóxico sobre los microorganismos, en consecuencia, el mayor estrés causado por la concentración de contaminante (2% de diésel-oil quedó demostrado con el qCO2. La importancia de los parámetros evaluados radica en que permiten conocer la respuesta de las comunidades microbianas del suelo ante la presencia del diésel-oil.

  1. Pengaruh Variasi Perbandingan Udara-Bahan Bakar Terhadap Kualitas Api Pada Gasifikasi Reaktor Downdraft Dengan Suplai Biomass Serabut Kelapa Secara Kontinyu

    Directory of Open Access Journals (Sweden)

    Sholehul Hadi

    2013-12-01

    Full Text Available Salah satu bentuk energy alternatif adalah gasifikasi biomassa. Biomas yang digunakan adalah serabut kelapa muda karena jumlahnya melipah dan belum maksimal dimanfaatkan oleh masyarakat. Gasifikasi dari serabut kelapa dijadikan syn gas untuk bahan bakar terbarukan dan dapat diperbaharui. Dengan peralatan reactor gasifikasi dapat dihasilkan (Air Fuel Ratio terbaik untuk sistem pemasukan serabut kelapa kontinyu 0,5 kg/10 menit , melalui putaran dimmer pada sentrifugal blower diberikan 4 variabel yaitu 5, 7, 9, 10. Dan memvariasikan ukuran serabut kelapa 10-50 mm dan 50-100 mm. Hasil menunjukan untuk: zona pengeringan pada temperatur (T1 sampai 100ºC, zona pirolisispada temperatur (T2 sampai 350ºC, zona oksidasi parsialpada temperatur (T3 sampai 600ºC, zona reduksipada temperatur (T4 sampai 450ºC, indikator temperatur synthetic-gas pada temperatur (T5 sampai 120ºC dan Kandungan energi terbaik ditinjau dari LHV  syn-gas dihasilkan pada variasi AFR 1,06 untuk ukuran serabut kelapa 50-100 mm dengan efisiensireaktorgasifikasi sebesar 69,87 %. Pada variasi AFR tersebut dihasilkan komposisi flammable gas sebagai berikut : CO= 20,8%, H2 = 5,34%, dan CH4 = 4,5%.Untuk variasi ini prosentase kandungan syn-gas dan laju alir massa syn-gas selama proses memiliki komposisi yang tepat sehingga visualisasi nyala api yang dihasilkan terdapat warna biru dengan suhu 3530C.

  2. 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.

  3. 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...

  4. 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

  5. "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..."

  6. Efek ekstrak buah delima (Punica Granatum L terhadap ekspresi wild p53 pada sel ganas rongga mulut mencit strain swiss webster

    Directory of Open Access Journals (Sweden)

    Sri Hernawati

    2013-09-01

    Full Text Available Background: Squamous cell carcinoma is the most common cancer in the oral cavity. DNA tests showed that almost 90% of cases revealed wild p53 gene mutations. Wild p53 gene mutations cause p53 inactivation so the cell cycle does not stop in G1 phase but continues to S phase and G2 and M, it makes the mutated DNA remains multiplied and apoptosis does not occur. One candidate of the cancer treatment alternatives is pomegranate extract (Punica granatum L – PGL. Purpose: The purpose of study was to examine the effect of PGL on wild p53 expression in oral cavity malignant cell of swiss webster strain mice. Methods: Thirty- two swiss webster strain mice (Balb/c 5 months old were randomly divided into four groups. Two control groups (K0: no benzopirene exposed and untreated; K1: benzopirene exposed and untreated; and 2 treatment groups (P1: benzopirene exposed and given EA; P2: benzopirene exposed and given PGL extract. The expression of wild p53 was determined by immunohistochemical techniques. Results: The results showed that administration of PGL could increase the expression of wild p53 in malignant epithelial cells in the oral mucosa of mice, and the expression was higher than EA. Conclusion: This study suggested that the PGL extract could express wild p53 in the oral cavity malignant cells of swiss Webster strains mice.Latar belakang: Karsinoma sel skuamosa merupakan kanker yang sering terjadi pada rongga mulut. Pemeriksaan DNA menunjukkan hampir 90% kasus dijumpai adanya mutasi gen wild p53. Mutasi gen wild p53 menyebabkan inaktivasi wild p53 sehingga siklus sel tidak berhenti pada fase G1 tetapi berlanjut ke fase S dan G2 dan M, sehingga DNA yang mengalami mutasi tetap dilipatgandakan dan apoptosis tidak terjadi. Salah satu kandidat obat kanker adalah ekstrak buah delima (Punica Granatum L - PGL. Tujuan: Penelitian ini bertujuan untuk meneliti efek ekstrak PGL terhadap ekspresi wild p53 pada sel ganas rongga mulut mencit strain swiss webster

  7. 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...

  8. [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

  9. [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

  10. [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)

  11. La teneur en iode du sel de cuisine consommé à Lubumbashi et le statut iode des personnes vulnérables: cas de femmes enceintes de milieux défavorisés

    Science.gov (United States)

    Banza, Bienvenue Ilunga; Lumbu, Jean Baptiste Simbi; Donnen, Philippe; Twite, Eugène Kabange; Kwete, Daniel Mikobi; Kazadi, Costa Mwadianvita; Ozoza, Jean Okolonken; Habimana, Laurence; Kalenga, Prosper Muenze Kayamba; Robert, Annie

    2016-01-01

    Introduction La consommation du sel faiblement iodé peut engendrer des troubles divers liés à la carence iodée Ce travail a pour objectif d’évaluer la teneur en iode du sel consommé à Lubumbashi et de déterminer le statut iodé des femmes enceintes, cible privilégiée de la carence iodée. Méthodes Une étude transversale descriptive a été consacrée à une analyse iodométrique d'iode dans 739 échantillons de sel collectés dans les ménages et marchés de Lubumbashi en 2014. Précédemment, l'iode urinaire a été déterminé par la technique de minéralisation au persulfate d'ammonium chez 225 femmes enceintes reçues en consultation du 15 mars 2009 au 25 avril 2011. Résultats Notre enquête a révélé 47,5% des échantillons de sels de cuisine adéquatement iodés (15 à 40 ppm), 36,9% d’échantillons faiblement iodés, 7,4% d’échantillons trop riches en iode et 8,1% des échantillons non iodés. La disponibilité en iode du sel de cuisine analysé était globalement de 54,9%, se trouvant nettement en dessous des normes OMS (90%). En mesurant l'iode urinaire chez la femme enceinte, la carence iodée (iode urinaire risques majeurs des troubles dus à la carence en iode. PMID:27279956

  12. 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...

  13. 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)

  14. Sifat fisik hidroksiapatit sintesis kalsit sebagai bahan pengisi pada sealer saluran akar resin epoxy (Physical properties of calcite synthesized hydroxyapatite as the filler of epoxy-resin-based root canal sealer

    Directory of Open Access Journals (Sweden)

    Ema Mulyawati

    2013-12-01

    : Penambahan bahan pengisi pada sealer berbahan dasar resin akan meningkatkan sifat fisik polimer. Karena sifat biologis bagus, hidroksiapatit (HA sintetis digunakan sebagai bahan pengisi material kedokteran gigi seperti resin komposit. Hidroksiapatit sintesis kalsit merupakan HA yang hasilkan dari mineral kalsit berasal dari berbagai daerah pertambangan di Indonesia. Tujuan: Penelitian ini bertujuan untuk meneliti pengaruh berbagai konsentrasi HA sintesis kalsit sebagai bahan pengisi sealer berbahan dasar resin epoksi terhadap sifat fisiknya yaitu sudut kontak, ketebalan film dan kekerasan mikronya. Metode: Kristal HA sintesis kalsit yang berukuran 7,721-88,710 nm dengan rasio Ca/P 1,6886 diperoleh dari sintesis di Laboratorium Keramik, Teknik Mesin, Universitas Gadjah Mada menggunakan wet method dengan microwave hidrotermal. Serbuk resin epoksi dipersiapkan dengan menambahkan kristal HA sintesis kalsit dalam lima konsentrasi yang berbeda yaitu HA-10%, HA-20%, HA-30%, HA-40% dan HA-50% (dalam berat. Masing-masing serbuk diaduk dengan pasta resin epoksi dengan perbandingan 3:1 menggunakan spatula di atas glassplate hingga homogen, selanjutnya dilakukan pengukuran sudut kontak dan ketebalan film. Pengukuran kekerasan mikro dilakukan setelah sealer disimpan dalam inkubator 37 oC selama 24 jam sehingga mencapai polimerisasi sempurna. Hasil: Semua kelompok menunjukkan bahwa sudut kontak <90o dan menunjukkan tidak ada perbedaan yang signifikan (p=0,510. Semua kelompok menunjukkan bahwa ketebalan filmnya sesuai dengan ISO 6876 (<50 um dan menunjukkan tidak ada perbedaan yang signifikan (p=0,858. Pada kelompok HA-10%, 20% dan 30% kekerasan mikronya meningkat, sedangkan pada HA-50% menurun dan HA-40% kekerasannya sama dengan kelompok kontrol (HA-0%. Simpulan: Penambahan hingga 50% HA sintesis kalsit sebagai bahan pengisi sealer resin epoksi tidak mempengaruhi sudut kontak dan ketebalan film. Kekerasan sealer dapat ditingkatkan dengan menambahkan HA sintesis kalsit maksimum hingga 30%.

  15. 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.

  16. 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...

  17. Pengembangan Bahan Ajar Bahasa Arab

    Directory of Open Access Journals (Sweden)

    Khairy Abusyairi

    2013-06-01

    Full Text Available Up to day, the materials of Arabic teaching that are developed and used widely in Indonesia in general are the teaching materials used in the madrassah in the Middle East. If the teaching material is the result of the development of amounts not so much. While the demands for innovation and the development of Arabic language teaching materials, today continues to roll, in line with the dynamics of the development of science and technology. Besides that , the demand for Arabic teaching materials that use Indonesian as the language develops in most introductory students, especially those with a general educational background. Thus, one needs to have a competence of teachers in performing their duties is developing instructional materials. Development of teaching materials a teacher is important for learning more effective, efficient, and does not deviate from the competency achieved. Arabic teaching materials can be developed through the following steps : a analysis, b design, c the writing and preparation of the material, d evaluation, e revision.

  18. EVALUASI BIOLOGIK BAHAN KEDOKTERAN GIGI

    Directory of Open Access Journals (Sweden)

    Fazwishni Siregar

    2015-08-01

    Full Text Available Dental material should be evaluated biologically to mnimixe the biological risk. The purpose of biologic evaluation is to assess the safety level of a material intend to be used, in animals. According to ISO Technical Report no. 7504, biologic evaluation is composed of initial, secondary, and usage tests. The onjective of initial tests is to determine the acute toxicity, hemolysis, mutagenesis, and cytotoxicity properties of the material. While the secondary tests are purposed to develop knowledge of tissues reactions, sensitivity, and irritation properties of the material. At usage tests the material should be tested with procedure duplicate as much as possible the procedure to be used in patients. In practice, the tests are chosen depend on the intention use of the material and knowledge of the toxicity of the material.

  19. Kajian Morfologi Anatomi dan Agronomi antara Kedelai Sehat dengan Kedelai Terserang Cowpea Mild Mottle Virus serta Pemanfaatannya sebagai Bahan Ajar Sekolah Menengah Kejuruan

    Directory of Open Access Journals (Sweden)

    As’ad Syamsul Arifin

    2014-06-01

    Full Text Available Salah satu penyebab rendahnya produktivitas kedelai di Indonesia adalah serangan virus belang samar kacang tunggak Cowpea mild mottle virus (CPMMV. Penelitian ini adalah penelitian survei yang bertujuan untuk menggambarkan dan mengumpulkan informasi tentang kajian morfologi, anatomi dan agronomi terhadap infeksi CPMMV antara varietas yang terinfeksi dengan yang tidak terinfeksi. Data dianalisi secara deskriptif dan secara Inferensial ANAVA dengan menggunakan pro-gram SPSS for Windows versi 16. Hasil penelitian menunjukkan: Varietas Gumitir sehat, Anjosmoro sehat, Mahameru sehat , MLGG 0021, dan MLGG 0268 memiliki ukuran lebih besar dalam hal panjang daun, lebar daun, panjang petiol daun, nisbah daun (L/W, dan nisbah daun (L/PL dibandingkan va-rietas yang sakit. Varietas Argopuro sakit memiliki ukuran lebih besar dalam hal panjang daun, lebar daun, panjang petiol daun, dan nisbah daun (L/W, Nisbah daun (L/PL dibandingkan varietas yang sehat. Tidak terdapat perbedaan warna hipokotil, perbedaan bentuk daun, warna daun, warna bulu batang, permukaan daun antara kedelai sehat dan sakit pada keenam varietas. Terdapat perbedaan warna biji, warna polong masak, antara kedelai sehat dan sakit pada keenam varietas. Warna bunga pada kelima varietas kedelai sehat dan sakit berwarna ungu, kecuali pada varietas Gumitir berwarna putih. Terdapat perbedaan bentuk daun pada varietas Argopuro, Anjosmoro, Mahameru sehat dan sakit. Tidak terdapat perbedaan bentuk daun antara sehat dan sakit pada varietas Gumitir, MLGG 0021 dan MLGG 0268. Ada pengaruh varietas, kondisi, interaksi varietas dan kondisi terhadap ukuran sel daun. Ada pengaruh varietas terhadap jumlah stomata, kondisi serta interaksi varietas dan kondisi tidak berpengaruh secara nyata terhadap jumlah stomata. Tidak terdapat pengaruh varietas, interaksi varietas dan kondisi terhadap jumlah epidermis. Ada pengaruh kondisi terhadap jumlah epidermis. Jumlah trikoma varietas kedelai sehat lebih banyak daripada

  20. 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.

  1. 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

  2. Tuğrul Beg b. Mikâil Dönemi (1040 - 1063 Selçuklu Vezîrleri

    Directory of Open Access Journals (Sweden)

    Özgür TOKAN

    2016-03-01

    Full Text Available Vezâret müessesesi, çok eski zamanlardan itibaren muhtelif devletlerin bürokratik teşkilâtlarında yer almıştır. Abbâsîler döneminde İslâm dünyası içerisine de giren bu müessese, çok ufak farklılıklarla bu devlet içerisindeki bürokratik teşkilâtı devam ettiren Samânîler gibi emirliklerde ve Samânîler içerisinden çı karak kurulmuş olan Gazneliler Devleti’nde de varlığını devam ettirmiştir. 1035 yılında, toplu halde Ceyhun nehrini aşarak Horasan bölgesine gelen ve 1040 yılına kadar verdikleri mücadelelerle Gazneliler’e karşı başarı sağlayıp bağımsız bir devlet halini a lan Selçuklular da, söz konusu müesseseyi ismi geçen siyasî unsurlardan esinlenerek kendi devlet teşkilâtları içerisine sokmuş ve devam ettirmişlerdir. Büyük Selçuklu Devleti’nin ilk sultanı Tuğrul b. Mikâil’in hükümdarlık döneminden (1040 - 1063 itibaren S elçuklu devlet teşkilâtı içerisinde yer alan söz konusu müessesenin başkanlığına, vezir unvanıyla toplamda altı devlet adamı tayin edilmiştir. Bunlar; Ebu’l - Kasm Sâlâr Bujkân, Ebu’l - Feth Râzî, Ali b. Abdullah Cüveynî, Nizamü’l - Mülk Ebû Ahmed (Muhammed Deh istanî, Reîsü’r - Rüesâ Ebû Abdullah el - Hüseyin (Hasan b. Ali b. Mikâil ve Amîdü’l - Mülk Kündürî’dir.

  3. 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...

  4. 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.

  5. Ortaokul Öğrencilerinde İnsani Değerlerin Özyeterlik Algılarını ve Bilişsel Strateji Kullanımını Yordama Gücü

    Directory of Open Access Journals (Sweden)

    Tuncay ORAL

    2015-12-01

    Full Text Available Bu araştırmada, ortaokul öğrencilerinde insani değerlerin özyeterlik algılarını ve bilişsel strateji kullanımını yordama gücü incelenmiştir. Bu araştırmadaki veriler 2012-2013 eğitim öğretim yılında Denizli il merkezinde bulunan resmi kurumlarda öğrenim gören 192 kız (%60,4 ve 126 erkek (%39,6 olmak üzere toplam 318 ortaokul 5, 6, 7 ve 8. sınıf öğrencilerinden elde edilmiştir. Araştırmada Dilmaç (1999 tarafından geliştirilen Ahlaki Olgunluk Ölçeği ve Pintrich ve De Groot (1990 tarafından geliştirilen ve Üredi (2005 tarafından Türkçeye uyarlanan Özyeterlik Algısı Ölçeği ve Bilişsel Strateji Kullanımı Ölçeği kullanılmıştır. Veriler SPSS 16.0 paket programı kullanılarak analiz edilmiş ve verilerin analizinde .01 anlamlılık düzeyi kabul edilmiştir. İnsani değerlerin, öğrencilerin özyeterlik algılarını ve bilişsel strateji kullanım düzeylerini yordama gücünü belirlemek amacıyla yapılan basit doğrusal regresyon analizi sonuçlarına göre, insani değerlerin özyeterlik algılarını ve bilişsel strateji kullanımını anlamlı düzeyde yordadığı gözlenmiştir.

  6. 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

  7. 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...

  8. 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.

  9. 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.

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

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    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.

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

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    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.

  12. 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.

  13. 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.

  14. Analisis Eksergi Penyimpanan Panas untuk Sistem Pengering Berenergi Surya

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    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.

  15. 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. ...

  16. Dietary supplementation of chelated selenium and broiler chicken meat qualitySuplementação de selênio quelatado na ração e qualidade da carne de frango

    Directory of Open Access Journals (Sweden)

    Massami Shimokomaki

    2012-02-01

    Full Text Available The glutathione peroxidase (GSH-Px is selenium-containing enzyme, which catalyses the reduction of hydrogen peroxides and lipid hydroperoxides preventing the oxidative damages in animal tissues. The selenium (Se deficiency increases the need for vitamin E. The aim of this study was to investigate the effect of dietary supplementation of chelated Se on the poultry meat quality. Fourteen Cobb chicks with 1 day of age were divided into two groups: C-Control group (without supplementation and S-Supplemented group (with 0.03mg of chelated Se.kg-1 of feed. Birds at 42 days of age were slaughtered and boneless skinless chicken thighs were collected and stored at –18ºC for 30 days. Thighs were analyzed for the cooking loss, lipid oxidation by Thiobarbituric-Acid-Reactive Substances (TBARS and GSH-Px activity by coupled assay procedure recording the NADPH (nicotinamide adenine dinucleotide phosphate reduced oxidation. Samples of Supplemented group presented 33.8% less water after cooking (p ? 0.05 and were 23.6% (p ? 0.10 less oxidized when compared with samples of group Control. The GSH-Px activity of thighs did not differ significantly (p> 0.05 between groups Supplemented and Control. The supplementation with 0.03mg of Se in the kg of feed improved the meat quality by reducing the lipid oxidation and cooking loss, however did not increase the GSH-Px activity.O selênio (Se é componente da enzima glutationa peroxidase (GSH-Px que catalisa a redução de peróxido de hidrogênio e peróxido lipídico, prevenindo danos oxidativos nos tecidos animais. A deficiência de Se aumenta a necessidade de vitamina E pelos animais. O objetivo deste trabalho foi avaliar o efeito da suplementação de selênio quelatado sobre a qualidade da carne de frango. Os 14 pintinhos de corte da linhagem Cobb de 1 dia de idade foram divididos em 2 grupos: C-Controle (sem suplementação e S-Suplementado com 0,03mg Se quelatado. kg-1 de ração. Os frangos com 42 dias de

  17. Penggunaan Karbamid Peroksida Sebagai Bahan Pemutih Gigi

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    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.

  18. PENGUJIAN BERAS AKING SEBAGAI BAHAN MAKANAN

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    Bambang N.

    2012-11-01

    Full Text Available The Study On The Used Rice as Staple Food.Background: Due to the high price of rice, some people used the used rice known as "beras aking" as staple food replacing the rice. The rice was cooked similar to the cooking of original rice. In its preparation to become aking, the cooked rice firstly is dried under the sun until the rice becoming dry. Consequently, the appearance of the rice is brownness color and sometime already grown by the mold. However, the people are preferred to choose the aking than other alternate food such as cassava. Therefore we performed to study the nutrition and acceptability of the used rice through the chemical analysis, microbial observation and sensory evaluation of the cooked of used rice.Objectives: The objective of this study is to asses the uses rice as staple food.Methods: Five samples of the used rice were obtained from district of Cirebon, Sumedang, Cileles, Indramayu and Bandung. The method of study is descriptive method to examine the characteristic of used rice by comparing with the ordinary rice.Results: As the consequent in preparation of the used rice, its content of moisture, pH, density and whiteness were low than those of ordinary rice. In addition, the content of reducing sugar was a bit higher than these of original rice. However, the protein content of used rice showed the various result, two samples of them had protein content less than the usual rice's while the rest three samples had protetn content higher than the ordinary rice's. The content of ash and total count of microbial in the used rice was seemly not different from the usual rice's However, the growth of microbial during preparation of the used rice was observed. Therefore, the examination of toxic substance should be done. The color, texture and aroma of the used rice were assessed lower than those of the ordinary rice in descriptive analysts. The steamed used rice had brownish white color, very soft texture and enough annoying acid aroma. Conclusion: The quality of used rice could be increased both nutritionally and its acceptance. Mixing the used rice with other ingredient and the more controlled drying process and good raw material would increase the quality of the used rice. In addition, the examination of toxic substance produced the micro organism should be done, since the micro organism growth during the preparation of used rice.Keywords: the used rice, beras aking.

  19. KANDUNGAN KOLESTEROL DALAM BERBAGAI BAHAN MAKANAN HEWANI

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    Muhamad Saidin

    2012-09-01

    Full Text Available The risk of consuming large quantities of food containing cholesterol has been widely known by the community. However, information concerning cholesterol content in a variety of foods originating from animal tissue is not very well known. By knowing the cholesterol content of food products, people could restrict or prevent their consumption of high cholesterol food and select foods with a low cholesterol content. The cholesterol content of various foods originating from animal tissues, such as beef, mutton, broiler and domestic chicken meat, entrails (liver, heart, kidney and intestines, skin, tail part and eggs and fish (salt water and fresh water had been investigated. Cholesterol content was analysed using David Sleighton's method, which was a modification from Abell et. al. The study revealed that the cholesterol content of every 100 g wet weight meat of domestic chiken was similar to that of broiler chicken, 116 mg and 110 mg respectively. Cholesterol content of broiler chiken entrails was higher than that of domestic chicken. The highest cholesterol content of broiler chicken entrails was liver (529 mg/100 g and the lowest was heart (171 mg/100 g, while for domestic chicken, the highest was kidney (336 mg/100 g and the lowest was heart (164 mg/100 g. Egg yolk cholesterol content of domestic chicken was 922 mg/100 g nearly two folds of broiler chicken's egg which was 485 mg/100 g. The highest content of cholesterol among salt water animals was shrimp (179 mg/100 g and the lowest was pomfret (97 mg/100 g, while for fresh water fishes the highest was catfish (94 mg/100 g and the lowest was mujair (52 mg/100 g.

  20. 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...

  1. 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...

  2. 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.

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

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    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

  4. 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)

  5. 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.

  6. 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

  7. 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

  8. 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

  9. 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

  10. Effect of selenium-vitamin E injection in selenium-deficient dairy goats and kids on the Mexican plateau Efeito do selênio e da vitamina E sobre a produtividade de cabras e cabritos no México

    Directory of Open Access Journals (Sweden)

    J.E. Ramírez-Bribiesca

    2005-02-01

    Full Text Available Three experiments were carried out to determine the optimum selenium-vitamin E injection level to maintain acceptable blood selenium (Se status of does and kids, as well as to determine the relation of that status to mortality rates in kids. In experiment 1, 238 goats were assigned to one of three groups during the mating period: A1-control, A2- 0.06mgSe+0.8IU vitE/kgBW and A3-0.125mgSe+1.7IU vitE/kgBW. No differences (P>.05 for fertility and prolificacy were observed among the groups. Blood Se concentration did not differ among Se-vit E groups and control group before injection, and both groups showed Se deficient condition. There was a trend (PForam conduzidos três experimentos para determinar a quantidade ótima da injeção de selênio-vitamina E (Se-vit E para manter o nível aceitável do status de selênio no sangue de cabras e cabritos e determinar essa relação com o status sobre a taxa de mortalidade de cabritos. No primeiro experimento, 238 cabras foram usados em um dos três grupos durante o período do acasalamento: A1- controle, A2- 0,06mgSe+0,8UI vit E/kg de peso-vivo e A3- 0,125mgSe+1,7UI vitE/kg de peso-vivo. Não houve diferenças (P>0,05 entre os grupos para fertilidade e prolificidade. A concentração de Se no sangue não foi diferente entre os grupos que receberam Se-vit E e o controle antes da injeção e ambos os grupos mostravam deficiência de Se. Sessenta dias pós-tratamento houve tendência (P<0,05; 32% de aumentar o nível de Se no sangue e não houve diferença entre os grupos A2 e controle. Houve diferença significativa (P<0,05; 103% entre os grupos A1 e A2 e o grupo A3. No segundo experimento, 48 cabras foram divididas em quatro grupos: B1- controle, B2- 0,125mgSe+1,7UI vitE/kg de peso-vivo, B3- 0,25mgSe+3,4UI vitE/kg de peso-vivo e B4- 0,31mgSe+4,2UI vitE/kg de peso-vivo. O grupo B4 alcançou a concentração mais alta no terceiro mês depois da injeção (0,11ppm e diminuiu depois de 100 dias, quando o valor

  11. 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 ...

  12. 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

  13. 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.

  14. 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

  15. 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

  16. Genel Bilişsel Yetenek Ölçümlerinde Süre ve Performans İlişkisinde A Tipi Kişiliğin Rolü(The Role of Type A Personality on the Relationship between Time and Performance in Measurement of General Cognitive Ability

    Directory of Open Access Journals (Sweden)

    Murat GÜLER

    2016-04-01

    Full Text Available Organizasyonların personel seçiminde kullanılan bilişsel yetenek ölçümlerinin, objektif ve yansız olarak yapılması, ihtiyaç duyulan uygun nitelikteki insan kaynağının temin edilmesi için önemli bir husustur. Ancak, bilişsel yetenek testlerinin kişilik özelliklerinden etkilendiğine dair bazı bulgular öne sürülmektedir. Mevcut araştırmada, genel bilişsel yetenek (GBY ölçümlerinde süre ve performans ilişkisinde A Tipi kişiliğin rolü 271 üniversite öğrencisinden elde edilen verilerle incelenmiştir. Veriler, A Tipi Kişilik Ölçeği ve Raven Standart Progresif Matrisler Testi ile toplanmıştır. Genel örneklemde ve A Tiplerinde GBY test performansı ve süresi ile A Tipi kişilik arasında anlamlı bir ilişki gözlenmezken, B Tiplerinde test süresinin ve yaşın GBY test performansının yordayıcısı olduğuna ilişkin bulgulara ulaşılmıştır. Objectively and impartially application of cognitive ability measurements that used in personnel selection of organizations, is a vital issue for providing needed appropriate human resources. But, some findings have been suggested that personality traits influence the measurement of cognitive abilities. In the current study the relationship between general cognitive ability (GCA and Type A personality (TAP was investigated with the data collected from 271 university students. The assessment instruments used were: Type-A Behavior Scale and Raven Standard Progressive Matrices Test. The findings revealed that, while there was no relationship between GCA, testing time and TAP in the general sample and Type A group, testing time and age were predictors of the GCA test performance in the Type B group

  17. 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)

  18. 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

  19. MENDESAIN BAHAN AJAR BAHASA INDONESIA UNTUK TUJUAN AKADEMIS

    Directory of Open Access Journals (Sweden)

    Widjono Hs.

    2008-05-01

    Full Text Available 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 design good course materials. Article also includes a model structure of learning academic paragraph writing and academic essay.

  20. PEMBUATAN PEPTON SECARA ENZIMATIS MENGGUNAKAN BAHAN BAKU JEROAN IKAN TONGKOL

    Directory of Open Access Journals (Sweden)

    Tati - Nurhayati

    2014-06-01

    Full Text Available AbstrakJeroan ikan tongkol memiliki kandungan protein yang hampir sama dengan daging ikan sehingga memilikipotensi yang besar untuk dijadikan pepton. Penelitian ini bertujuan memproduksi pepton dari jeroan ikantongkol menggunakan enzim papain dan mengujinya untuk pertumbuhan bakteri. Konsentrasi enzim optimalyang digunakan untuk hidrolisis protein jeroan ikan tongkol adalah 0,26% dengan waktu hidrolisis selama3 jam. Pepton jeroan ikan tongkol memiliki kadar air 7,66%; kadar abu 2,34%; kadar protein 50,18%; dankadar lemak 0,47%. Kadar asam amino tertinggi dan terendah masing-masing adalah asam glutamat (6,38%dan sistein (0,68%. Pepton jeroan ikan tongkol memiliki kelarutan 98,20%; total nitrogen 8,03%; α-aminonitrogen bebas 1,12%; rasio asam amino bebas terhadap total nitrogen 13,93%; kadar garam 0,79%; rendemen3,92-5,54% dan pH 6,02. Pepton jeroan ikan tongkol dapat digunakan sebagai salah satu penyusun media luriabroth (LB untuk pertumbuhan bakteri Escherichia coli dan Staphylococcus aureus. Kecepatan pertumbuhanspesifi k maksimum E. coli pada media yang menggunakan pepton jeroan tongkol lebih tinggi dibandingkandengan pepton komersial, sedangkan kecepatan pertumbuhan spesifi k maksimum S. aureus lebih rendah padamedia pertumbuhan LB yang mengandung pepton jeroan tongkol.Kata kunci: hidrolisis, jeroan ikan, papain, pepton

  1. 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.

  2. 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.

  3. 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.

  4. 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...

  5. 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...

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

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    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. POTENSI LICHEN SEBAGAI SUMBER BAHAN OBAT: SUATU KAJIAN PUSTAKA

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    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.

  8. EFEKTIVITAS NIRA AREN SEBAGAI BAHAN PENGEMBANG ADONAN ROTI

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    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

  9. 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...

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

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    - 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.

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

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    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.

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

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    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

  13. 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...

  14. 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 ...

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

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    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.

  16. Desain Sistem Kendali untuk Pengering Gabah dengan Kolektor Surya dan Penyimpan Panas

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    Fakhrul Irfan Khalil

    2016-04-01

    Full Text Available The main problem in the solar drying is the fluctuation of solar radiation that causes drying process takes place un-continuously. The purpose of this research was to design a control system in a grain dryer model using solar collectors and water as a heat storage so that the drying process model, heat storage and its utilization can take place effectively and efficiently. The control method used the ON-OFF control system based on microcontroller ATmega 16. The control system algorithm was based on comparison among air equilibrium moisture content (Me of environment, Me in the drying chamber and the potential air Me. The results showed that the control system worked well on grain dryers system using solar collectors and water as the medium of heat storage.The average ambient air temperature of 35.6oC, RH of 51.3%, plenum of 35.4oC and the total radiation of 1.66 kWh/m2, the system could dried 5 kg of grains at the top level from initial moisture content of 42.5% d.b to 18.3% d.b and at the bottom level of 42.2% d.b to 16.1% d.b during 10 hours. The water temperature rise although still used, from 32.1oC to the maximum reached 44.2oC and the remaining of 38.8oC.

  17. 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...

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

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    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.

  19. 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...

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

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    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

  1. 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

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    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

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

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    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.

  3. 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

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    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

  4. 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”

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    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

  5. Biocompatibility and osteoconductivity of injectable bone xenograft, hydroxyapatite and hydroxyapatite-chitosan on osteoblast culture

    Directory of Open Access Journals (Sweden)

    Bachtiar EW

    2010-12-01

    Full Text Available Background: Bone graft in the form of injectable paste gives several advantages over the powder form as it could be placed in the defect area that has limited accessibility. Purpose: The purpose of this study was to assess biocompatibility and osteoconductivity of an injectable bone xenograft (IBX, injectable hydroxyapatite (IHA and injectable hydroxyapatite-chitosan (IHA-C on osteoblastic cell line (MG-63. Methods: Three concentrations (0.25%, 0.5% and 1.0% of IBX, IHA and IHA-C were supplemented with DMEM culture medium. The viability cells were measured by MTT assay 4 hour after incubation. ALP activity was measured at day 1, 3, 5 and 7. Calcium deposition was tested at day 3 and day 7 by means of Von Kossa staining. Results: MTT assay showed that the viability cells of all the test groups were above 100% compared to the control group. The cell viability of the 0.25% IHA paste was significantly higher (115.02% ± 4.37%, p < 0.05 compared with IBX paste and IHA-C in all concentrations tested. The highest level of ALP secretion of all test groups was found on the fifth day of exposure. The highest level of ALP in the IBX paste group was 0.25% concentration while the highest level of ALP in the IHA-C and IHA paste group was 1% and 0.25%, respectively. In addition, the highest calcium deposition was shown on IHA 1% at day 7 (p > 0.05. Conclusion: It was suggested that adequate biocompatibility and osteoconductivity was evident for all injectable pastes tested.Latar belakang: Bahan tandur tulang dalam bentuk pasta injeksi memiliki kelebihan dibandingkan bila bahan tersebut berupa bubuk, karena lebih mudah diaplikasikan pada daerah yang sulit dijangkau. Tujuan: Penelitian ini bertujuan untuk mengamati sifat biokompatibilitas dan osteokonduktifitas biomaterial tandur tulang dalam bentuk injectable bone xenograft (IBX, injectable hydroxyapatite (IHA dan injectable hydroxyapatite-chitosan (IHA-C pada galur sel osteoblas (MG-63. Metode: Bahan tandur

  6. 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

  7. The Cognitive Behavioral Physical Activity Questionnaire: A study of validity and reliabilityBilişsel Davranışçı Fiziksel Aktivite Ölçeği: Geçerlik ve güvenirlik çalışması

    Directory of Open Access Journals (Sweden)

    Ersin Eskiler

    2016-05-01

    ncelikle gençlerin düzenli egzersiz katılımına yönelik tutum ve davranışlarını belirlemek ve anlamak hayati bir öneme sahiptir. Açıklamalar ışığında, bu araştırma; Bilişsel Davranışçı Fiziksel Aktivite Ölçeğini (Cognitive Behavioral Physical Activity Questionnaire; CBPAQ Türkçe’ ye ve Türk popülasyonuna uyarlanmak amacıyla gerçekleştirilmiştir. Araştırmaya Bursa ilinde öğrenim gören 13-17 yaş aralığında 590 (297 erkek ve 293 kadın kişi katılmış ve örnek kütle kolayda örnekleme yöntemi ile belirlenmiştir. Verilerin analizinde, betimsel analizler, temel bileşenler faktör analizi (AFA ve doğrulayıcı faktör analizi (DFA kullanılmıştır. Bulgular ışığında ölçeğin orijinal formunda yer alan 15 ifade ve 5 boyutlu yapının istatistiksel olarak doğrulandığı belirlenmiştir. Nihai olarak, Bilişsel Davranışçı Fiziksel Aktivite Ölçeği’nin ilgili örneklem grubu için geçerli ve güvenilir bir ölçüm aracı olarak kullanılabileceği sonucuna ulaşılmıştır.

  8. 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...

  9. Apoptosis Sel Fibroblas Jaringan Pulpa Akibat Paparan Radiasi Ionisasi

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    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.

  10. Karla katedraal tahetakse veel sel aastal maha lammutada / Urmas Seaver

    Index Scriptorium Estoniae

    Seaver, Urmas, 1973-

    2006-01-01

    1985. aastal Tallinnas valminud Poliitharidusmaja (arhitekt Raine Karp), hilisem Sakala Keskus, lammutatakse ja asemele ehitatakse olulisemalt suurem hoone, kuhu on kavandatud kinosaal, ürituste saal, galeriid, kauplused, stuudiod, söögikohad jms

  11. 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...

  12. EFEK APLIKASI PADA HIDROKSIAPATIT TERHADAP PERLEKATAN SEL OSTEOBLAS

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    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.

  13. 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...

  14. 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

  15. Ekstrak Biji Klabet Menurunkan Jumlah Sel Spermatozoa pada Kelinci

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    I Gusti Nyoman Sri Wiryawan

    2009-06-01

    Full Text Available Fenugreek seed (Trigonella foenum-graecum contains saponin diosgenin, wich has an antifertility effect on spermatozoa so it can be used as an oral contraceptive drug. This study was aimedto investigate the effect of fenugreek seed extract to spermatogenic process of rabbit, especially onviability spermatozoa. “Completely randomized control group post-test only design” was used inthis study. The animals were divided into four groups; one control group and three treatmentgroups with six replicates (P0 = control group; P1 = group were given 10 % fenugreek seed extract,1 cc/day; P2 = group were given 20 % fenugreek seed extract, 1 cc/day; P3 = group were given 30 %fenugreek seed extract, 1 cc/day. The extract was given orally once a day in 50 days. After treatment,testicles were sectioned and stained with Hematoxylin Eosin; for qualitative and quantitativemicroscopic analysis. The result of this study showed that the number of spermatozoa were decreasedsignificantly (p<0,05 after receiving 10% fenugreek seed extract 1 cc per day. In conclusion,fenugreek seed extract could reduce the number of spermatozoa.

  16. Ekstrak Biji Klabet Menurunkan Jumlah Sel Spermatozoa pada Kelinci

    OpenAIRE

    I Gusti Nyoman Sri Wiryawan; Ida Ayu Ika Wahyuniari

    2009-01-01

    Fenugreek seed (Trigonella foenum-graecum) contains saponin diosgenin, wich has an antifertility effect on spermatozoa so it can be used as an oral contraceptive drug. This study was aimedto investigate the effect of fenugreek seed extract to spermatogenic process of rabbit, especially onviability spermatozoa. “Completely randomized control group post-test only design” was used inthis study. The animals were divided into four groups; one control group and three treatmentgroups with six replic...

  17. 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

  18. 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

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    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.

  19. 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

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    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

  20. 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...

  1. 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.

  2. 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...

  3. 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...

  4. 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%.

  5. 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...

  6. 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...

  7. 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...

  8. 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

  9. 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

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    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

  10. 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...

  11. 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 ...

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

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    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.

  13. 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...

  14. 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...

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

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    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

  16. 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...

  17. PERENCANAAN PENGEMBANGAN KAWASAN JAGUNG SEBAGAI BAHAN BAKU INDUSTRI PAKAN DI KABUPATEN CIAMIS

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    Mustika Gusnia Sari

    2015-07-01

    Full Text Available Poultry development sector in Ciamis has effected an increasing in maize production as a raw material for feed. In period 2008-2012, the production of maize in Ciamis Region is 45.883 tons, meanwhile, the demand is 17.000 tons, consequently  the Ciamis District supposed to be able to fulfill the demand; however, but currently the feed industry in Ciamis are still importing the maize. Cluster development might be one of solution for this problem. The aims of this research are: (1 Analyzing land availability for maize development in Ciamis District, (2 Analyzing maize cluster type can  be developed in Ciamis District, 3 Analyzing strategies in development of maize cluster. The results showed that land availability for maize development in Ciamis Regency is 28.176 ha. There are three maize cluster types that can be developed in Ciamis as follows: pertumbuhan cluster (15.671 ha, pengembangan cluster (12.217 ha and pemantapan cluster (288 ha. Considering the region development strategy, the priority in pertumbuhan cluster type is an optimization of  natural resources (land factor, in development type is human resources development with focused to the education and training of field staff, and in the pemantapan type is an institution empowerment with focused on the partnerships. Keywords: maize, cluster, development

  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

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    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. 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...

  2. PENGEMBANGAN BAHAN AJAR KETERAMPILAN BERBICARA BAHASA JEPANG BERORIENTASI BUDAYA MATA KULIAH KAIWA TINGKAT MENENGAH

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    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

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

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    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.

  4. 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 ...

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

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    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.

  6. 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...

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

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    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.

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

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    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.

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

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    Janita S. Meliala

    2014-05-01

    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.

  10. Pemanfaatan Biji Buah Nyamplung (Callophylum Inophylum Sebagai Bahan Baku Pembuatan Biodisel

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

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    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.

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

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    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.

  13. PENGARUH PERENCANAAN PEMBELIAN BAHAN BAKU DENGAN MODEL EOQ UNTUK MULTIITEM DENGAN ALL UNIT DISCOUNT

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    Much. Djunaidi

    2005-12-01

    Full Text Available Perusahaan kebanyakan, pada kenyataannya didapati memesan secara simultan pada satu supplier dari pada memesan per item. Salah satu dari perusahaan tersebut adalah PT. Sari Warna Asli IV Karanganyar. Pemesanan yang terdiri dari beberapa item sekaligus dikenal dengan joint replenishment order. Pada dasarnya sistem ini mempunyai prinsip bahwa biaya marginal dari menambah suatu pesanan item kedalam pesanan item-item lain yang sudah ada lebih murah daripada mengirim dalam lot yang lebih kecil beberapa kali. Dalam kasus persediaan di perusahaan ini supplier memberikan discount berdasar pada jumlah atau nilai item yang dibeli. Model dasar EOQ tidak membahas adanya permintaan multi-item dan adanya potongan harga yang diberikan oleh supplier. Jadi pada penelitian ini akan dikembangkan model persediaan dengan mempertimbangkan permintaan multi-item dengan unit discount. Sehingga didapatkan total biaya persediaan yang minimal. Untuk mendapatkan model matematis EOQ multi-item dengan all unit discount didapat dengan cara menurunkan ongkos total terhadap periode antar pemesanan (t dan menyamakannya dengan nol untuk mendapatkan jarak pemesanan optimal (t*dan ukuran pemesanan optimal yang menyebabkan ongkos total menjadi minimum. Pada penerapan model di PT. Sari Warna Asli IV, diperoleh hasil bahwa periode pesan dilakukan setiap 0,0146 (4 hari dengan kuantitas pesan optimal Q1*(Cotton 100% = 315.864 yard/pesan, Q2*(Polyester 100% = 298.864  yard/pesan dan Q3*(Tetron= 290.976 yard/pesan. Maka akan diperoleh biaya total persediaan yang minimum sebesar Rp. 174.457.515.100.

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

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    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.

  15. MODEL PERAMALAN KONSUMSI BAHAN BAKAR JENIS PREMIUM DI INDONESIA DENGAN REGRESI LINIER BERGANDA

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    Farizal 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.

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

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    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

  17. Determinasi Energi Metabolis dan Kandungan Nutrisi Hasil Samping Pasar Sebagai Potensi Bahan Pakan Lokal Ternak Unggas

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    Sugiyono Sugiyono

    2015-04-01

    Full Text Available (Determination of metabolic energy and nutrient market by product for local poultry feed ingredients ABSTRACT. This study aims to examine the metabolic energy (ME  and proximate analysis of the coconut husk, garlic skin, heart of young jackfruit, in order to see its potential as a local feed ingredients for poultry, especially chicken. The study was conducted in 3 stages include feed preparation stage, treatment stage and retrieval of data. Stage of treatment involves measurement of metabolic energy to "force feeding" the appropriate method of Sibbald (1976. The results of the proximate analysis and gross energy (GE  are  water content ranged from 6.28 to 13.60%, from 5.09 to 12.34% crude protein, crude fat from 0.57 to 48.72%, crude fiber 31.33 to 51.66 %, from 2.38 to 8.39% ash, extract materials without nitrogen from 3.19 to 27.11% and GE  3387.21 to 6491.17 (kcal/kg. The results of ME research is mathematical and biological ME each feed ingredient is coconut husk 4492.84 kcal/kg; 4025.59 kcal /kg, the heart of young jackfruit 1533.44 kcal/kg ; 1625.39 kcal/kg , garlic skins 1388.76 kcal/kg; 1327.65 kcal/kg, leather bean sprouts in 1392.48 kcal/kg; 1089 .33 kcal/kg . Conclusion The study is based on the results of the proximate analysis, the content of GE and EM biological byproduct feedstuffs markets that have potential for use in poultry rations are coconut husk being able to supply the highest energy.

  18. 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...

  19. Pengelolaan Limbah Padat Sabut Kelapa Sawit Sebagai Bahan Untuk Mengelola Limbah Cair

    OpenAIRE

    Alfius Manusawai, Herman

    2015-01-01

    ABSTRAK Kelapa sawit merupakan tanaman dengan nilai ekonomis yang cukup tinggi karena merupakan salah satu tanaman penghasil minyak nabati. Produksi minyak kelapa sawit Indonesia saat ini mencapai 6,5 juta ton pertahun dan diperkirakan pada tahun 2012 akan meningkat menjadi 15 juta ton pertahun, kerena terjadinya pengembangan lahan. Pemakaian sabut kelapa sawit dapat digunakan sebagai mediator pertumbuhan mikrobiologi, dimana mikrobiologi yang sangat berperan aktif dalam penurunan kadar BO...

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

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    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.

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

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    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.

  2. 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,...

  3. 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...

  4. 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 ...

  5. 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 ...

  6. 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...

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

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    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.

  8. 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...

  9. PENGEMBANGAN BAHAN AJAR FISIKA MATEMATIKA BERBASIS SELF REGULATED LEARNING SEBAGAI UPAYA PENINGKATAN KEMAMPUAN BELAJAR MANDIRI

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    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.

  10. 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...

  11. KONTRIBUSI GOLONGAN BAHAN MAKANAN TERHADAP KONSUMSI ENERGI DAN PROTEIN RUMAHTANGGA DIINDONESIA

    OpenAIRE

    Sri Prihatini; Abas Basuni Jahari

    2012-01-01

    Background: Some of the nutrition problems in Indonesia often as consequence of daily food consumption has not balanced, there is contribution more from cerealia than animal especially in poor families. Objectives: The aimed of this analysis is to studies the contribution of food group to household energy and protein consumption in Indonesia. Methods: Food consumption data of 173471 households sample of Health Research Data Base 2007 were calculated by Nutrisoft program developed by Research ...

  12. KONTRIBUSI GOLONGAN BAHAN MAKANAN TERHADAP KONSUMSI ENERGI DAN PROTEIN RUMAHTANGGA DIINDONESIA

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    Sri Prihatini

    2012-11-01

    Full Text Available Background: Some of the nutrition problems in Indonesia often as consequence of daily food consumption has not balanced, there is contribution more from cerealia than animal especially in poor families. Objectives: The aimed of this analysis is to studies the contribution of food group to household energy and protein consumption in Indonesia. Methods: Food consumption data of 173471 households sample of Health Research Data Base 2007 were calculated by Nutrisoft program developed by Research and Development Centre of Food and Nutrition. Food-stuff is categories to 8 group of food-stuff that is: Grains, Corms, Animal, Oil/Fat, Beans, Sugar, Fruit/fatty seeds and fruits and vegetables. Each group of food-stuff is calculated for the contribution to household consumption of energy and protein. Data were analyzed by descriptively. Results: At national level, the grains contributed of highest energy (67.2% from household energy consumption, except in Papua, where contribution of grain equal to contribution of corms that is each 40%. The grains also gives highest contribution that is 44.7% from household protein consumption. In urban, the contribution of grain is 63.2% from household energy consumption while in rural is 68.6 %. In Urban, contribution of grain is 40% of household protein consumption, while in rural is 46.0%. Conclusions: The grains  has the highest contribution for household energy and protein consumption. The protein from animal is only 38.7% and beans is 4.25%. Keywords: food-stuff, household energy protein consumption, contribution.

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

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    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. 

  14. 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...

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

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    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.

  16. PEMANFAATAN LIMBAH PLASTIK SEBAGAI ALTERNATIF BAHAN PELAPIS (UPHOLSTERY PADA PRODUK INTERIOR

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    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.

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

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    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.

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

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    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.

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

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    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.

  20. 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...

  1. 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...

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

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    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.

  3. Prediksi Kualitias Biodiesel Berdasarkan Komposisi Asam Lemak Bahan Mentah (Minyak-lemak

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    Joelianingsih

    2008-04-01

    Full Text Available The characteristics of biodiesel are similar to diesel fuels, and therefore biodiesel becomes a strong candidate to replace the diesel fuels if the need areses. Biodiesel standard- so called SNI 04-7182-2006 has been approved by the Indonesian National Standardization Agency (BSN. The basic fuel properties for biodiesel are influenced by the fatty acid composition of the feedstock such as the sensity, viscosity, cetane number, heating value and cloud point. Therefore, the value of these properties can be predicted from the fatty acids composition of the feedstock using the blending equations. This work uses pure component data for methyl palmitate, methyl stearate, methyl oleate, and methyl oleate to develop and test blending equations for the prediction of the basic fuel properties. The results from the blending equations are compared with literature values for biodiesel for a number of triglyceride sources such as palm and jatropha oils. Typical average errors are less than 10% for the density, cetane number and healting value. The blending equation for the viscosity and cloud point are suitable only for a speciefed biodiesel.

  4. 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...

  5. Modifikasi dan Uji Kinerja Kompos Spiral dengan Bahan Bakar Minyak Jarak Pagar

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    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.

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

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    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.

  7. Surat Elektronik sebagai Media Komunikasi Data pada Sistem Pemantauan Bahan Bakar pada Sistem Catu Daya BTS

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    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.

  8. 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...

  9. 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...

  10. PENGGUNAAN BAHAN AJAR TEMATIK PEMBAGIAN UNTUK MENINGKATKAN HASIL BELAJAR DI KELAS IIA MI AHLIYAH II PALEMBANG

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    Luvi Antari

    2015-12-01

    Full Text Available This study aims to look at improving student learning outcomes in the materials division using a thematic approach based teaching materials. This research is a classroom action research (Claassroom Action Research with a research subject graders IIA MI Ahliyah 2 Palembang, the second semester of 2014/2015 the number of students 28 people, consisting of 14 male students and 14 female students. This study was conducted by two cycles following the model of a Class Action Research & McTaggart Kemmis models which consists of four stages: planning, implementation, observation, and reflection. The process of collecting data by using observation and tests. Based on this research, the data obtained in the first cycle who scored ≥ 70 there were 17 students with learning completeness percentage amounted to 60.71% of students had reached the indicators of success and the second cycle there are 23 students who reached a value ≥ 70 on the percentage of students learning completeness by 82 , 14% had reached an indicator of success. With the student response rate reached 76.56% in the first cycle and the second cycle reaches 81.25%. It can be concluded that learning by using a thematic approach based teaching materials division performed in this research was effective, because it can improve student learning outcomes in the distribution of matter in class IIA MI Ahliyah II PalembangKeywords: a thematic approach, materials division

  11. 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...

  12. 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...

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

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    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

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

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    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.

  15. 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...

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

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    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.

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

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    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.

  18. 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...

  19. 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...

  20. PERPADUAN ANTARA PROPELLER DAN DAUN KEMUDI GUNA MENGOPTIMALKAN PROLPULSI DAN MANUVER KAPAL SERTA EFFISIENSI BAHAN BAKAR

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    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

  1. 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...

  2. "El sector de la economía laboral en Costa Rica (S.E.L." (The labour economy sector in Costa Rica (S.E.L.

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    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.

  3. Enhanced Cancer Cell (HeLa Killing Efficacy of Mixed Αlpha and Gamma Iron Oxide Superparamagnetic Nanoparticles under Combined AC (Alternating Current Magnetic-Field and Photoexcitation

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    Md. Shariful Islam, Yoshihumi Kusumoto, Md. Abdulla Al-Mamun and Yuji Horie

    2011-12-01

    Full Text Available We synthesized mixed α and γ-Fe2O3 nanoparticles and investigated their toxic effects against HeLa cells under induced AC (alternating current magnetic-fields and photoexcited conditions at room temperature. The findings revealed that the cell-killing percentage was increased with increasing dose for all types of treatments. Finally, 99% cancer cells were destructed at 1.2 mL dose when exposed to combined AC magnetic-field and photoexcited conditions (T3 whereas 89 and 83 % of HeLa cells were killed under only AC magnetic-field induced (T1 or only photoexcited (T2 condition at the same dose.ABSTRAK: Campuran α dan zarah γ-Fe2O3 bersaiz nano disintesiskan dan kesan toksidnya terhadap sel HeLa dikaji dibawah aruhan medan magnet arus ulang-alik (alternating current (AC dan keadaan photoexcited (proses ransangan atom atau molekul suatu bahan dengan penyerapan tenaga sinaran pada suhu bilik. Penemuan mendedahkan bahawa peratusan sel yang musnah bertambah dengan pertambahan dos untuk semua jenis rawatan. Akhirnya, 99% sel kanser dimusnahkan pada kadar dos 1.2mL setelah didedahkan terhadap kombinasi medan magnet AC dan keadaan photoexcited (T3 dimana 89% dan 83% sel HeLa dimusnahkan dengan hanya di bawah aruhan medan magnet AC (T1 atau hanya pada keadaan photoexcited (T2 pada kadar dos yang sama.KEY WORDS : Cancer, Hyperthermia, Iron oxide nanoparticles, Heat dissipation,    Cytotoxicity, HeLa cell.

  4. PEMANFAATAN Spirulina platensis SEBAGAI SUPLEMEN PROTEIN SEL TUNGGAL (PST MENCIT (Mus musculus

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    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.

  5. 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"

  6. 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.

  7. 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.

  8. 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...

  9. 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)

  10. 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 ...

  11. 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.

  12. 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.

  13. 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...

  14. 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.

  15. 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

  16. 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

  17. Booklists for the Teaching of Mathematics in Schools: Selections from the Recommended Books (Ref: SEL).

    Science.gov (United States)

    Mathematical Association, Leicester (England).

    Presented is a listing of general books on mathematics which are highly recommended by the Mathematical Association of the United Kingdom. The following information on each book is provided: author; title; publisher; cost to the nearest pound; categories of use; and a code that indicates if the book is out of print, reprinted, and/or highly…

  18. 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

  19. 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...

  20. 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

  1. 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...

  2. 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

  3. 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

  4. 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)

  5. 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. ...

  6. Analisis Cost Volume Profit sebagai Alat Bantu Manajemen dalam Rangka Perencanaan Laba dengan Penerapan Teori Kendala pada PT Skylite Surya Internusa

    Directory of Open Access Journals (Sweden)

    Holly Deviarti

    2011-05-01

    Full Text Available PT Skylite Solar Internusa is an industrial company that produces the houses lights and panel box. The purpose of this study is to help companies classify costs according to the behavior of costs, determine the calculation of the break event point of multiproduct, profit planning, and to overcome the constraints that occured in the company. The authors obtained data directly to the company's research and interviews with relevant parties, such as the production and the accounting department. The increase in profit in the fiscal year period 2009 due to demand for homes increased light and panel box. It can be concluded that the application of Cost-Volume-Profit analysis by using the break event point multiproduct can help management to determine how much sales volume may decline from the volume of sales is budgeted by the company and the company can make profit plan in 2010.

  7. 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...

  8. 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.

  9. 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 ...

  10. 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.

  11. 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...

  12. Penelusuran Daya Maksimum Pada Panel Photovoltaic Menggunakan Kontrol Logika Fuzzy Di Kota Surabaya

    Directory of Open Access Journals (Sweden)

    Kurnia Ma'rifatin Pebriningtyas

    2013-03-01

    Full Text Available Kebutuhan energi semakin lama semakin meningkat dan sumber energi utama yang digunakan saat ini mempunyai keterbatasan untuk memperbaruinya. Photovoltaic adalah komponen semikonduktor yang berfungsi mengkonversi energi matahari menjadi energi listrik. Cahaya matahari yang termasuk sumber energi primer tersedia sepanjang tahun di semua tempat di permukaan bumi. Tingkat penyinaran yang berbeda-beda menyebabkan daya keluaran dari photovoltaic bervariasi. Karakteristik V-I sel surya adalah nonlinier, berubah terhadap intensitas dan temperatur permukaan photovoltaic. Secara umum, terdapat titik yang unik pada kurva V-I atau kurva P-V, yang dinamakan Maximum Power Point (MPP. Titik MPP tersebut tidak diketahui namun dapat dicari dengan algoritma penjejak atau algoritma MPPT. Pada tugas akhir ini dilakukan perancangan penelusuran daya maksimum menggunakan kontrol logika fuzzy. Sistem penelusuran daya maksimum yang menggunakan modul BPSX-60 dapat menghasilkan daya 59,4W pada keadaan standard condition (intensitas 1000W/m2 dan temperatur 250C. Sistem penelusuran daya maksimum pada panel photovoltaic mampu menelusuri daya maksimum dengan kondisi lingkungan (intensitas cahaya matahari dan temperatur pada permukaan panel photovoltaic yang berubah-ubah.

  13. 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.

  14. 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

  15. UJI EFEKTIVITAS THEMEPHOS TERHADAP LARVA AEDES AEGYPTI PADA BERBAGAI SUMBER AIR DAN JENIS BAHAN TEMPAT PENAMPUNGAN AIR

    Directory of Open Access Journals (Sweden)

    Jarohman Raharjo

    2012-11-01

    Full Text Available Larvaside usage (themephos/abate in eradication vector program is often conducted because assumed safe, easy, and cheap. Temephos mechanism is removing mobile ingredient inch by inch and sticking to pore-wall pore half in from water relocation place. Various watch fulness has been done to test effectiveness larvasida in various treatment condition Research was conducted in February-September 2006 in Loka Litbang P2B2 Banjarnegara. This research was an elementary research with observational design. Result of observation showed that themephos/abate was still effective to kill larva aedes aegypti with death percentage 95-100% in each container and water source.

  16. Pembuatan dan Analisa Sifat Mekanik Komposit dengan Penguat Abu Terbang (fly ash) Cangkang Sawit Untuk Bahan Kampas Rem Sepeda Motor

    OpenAIRE

    Simanjorang, Berto P.

    2015-01-01

    Motorcycle brake pads is one of the important elements on a motorcycle , which greatly affects the brake system on a motorcycle braking . Motorcycle brake function to stop / reduce vehicle speed . Particles from asbestos material , when inhaled by humans can not be degraded by the body and settles in the lungs can interfere with health . Composite materials into alternative materials of waste oil palm shell is ash ( fly ash ) . Manufacture of composite material brake lining is composed of gra...

  17. Analisis Pengendalian Persediaan Bahan Baku dalam Meminimumkan Biaya Persediaan dengan Metode EOQ (Studi Kasus: PT. Sinar Sosro Medan)

    OpenAIRE

    Saragih, Jhon Herdin

    2016-01-01

    The analysis of raw materials inventory control is an important thing in the company’s production activity. Obstacles which are usually faced in inventory control is to determine how much quantity orders of materials that should be done by company in order to make the production activity run smoothly and to minimize the inventory costing. In the present paper, to analyze the data, the forcasting of raw materials needs was completed firstly from January 2013 until December 2013. From the deco...

  18. 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...

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

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    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.

  20. ANALISIS TREN PENELITIAN PANGAN FUNGSIONAL: KATEGORI BAHAN SERAT PANGAN [Functional Food Research Trend Analysis: Dietary Fiber Category

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    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.

  1. Pemanfaatan limbah kulit singkong termodifikasi alkanolamida sebagai bahan pengisi dalam produk lateks karet alam: Pengaruh waktu vulkanisasi

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    Hamidah Harahap

    2015-06-01

    Full Text Available The purpose of this research was to study the effect of drying time on the mechanical properties of natural rubber latex filled with cassava peel waste modified alkanolamide. Cassava peel is a waste, containing cellulose which is potential as fillers in natural rubber latex products. Cassava peel waste was dried and milled until the size of 100 mesh. Alkanolamide is one type of non-ionic surfactant which is synthesized from RBDPS (Refined Bleached Deodorized Palm Stearin and diethanolamine. Alkanolamide has polar group which can modified cassava peel waste and make strong chemical bonding with natural rubber latex. The production of natural rubber latex products was started from pre-vulcanization at 70°C until the system was cured and the chloroform number has reached number 3. Natural rubber latex was formed into films by coagulant dipping and drying method at 120°C for 10 minutes and 20 minutes. Results show that longer drying time will improve the crosslink density and tensile strength of natural rubber latex products until the addition of 15 phr cassava peel waste powder

  2. 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...

  3. 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 ...

  4. Pemodelan Lokasi-Alokasi Terminal Bahan Baku untuk Meminimasi Total Biaya Rantai Pasok pada Industri Produk Jadi Rotan

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    Yuniaristanto .

    2010-01-01

    Full Text Available In Surakarta and its surroundings (Solo Raya, there exists more than 400 Small-Medium Enterprises (SMEs that produce finished products of rattan. Due to the high procurement cost as total operational cost of raw rattan distribution network from the sources, e.g. Borneo and Celebes to the rattan industries, the competitiveness of their products is lower than products from other countries. Therefore, to overcome the problem, those costs should be reduced for example by aggregating the demand of rattan industries. This police needs to be supported by the warehouse for storing and distributing raw rattan. Hence, this research aims to develop a facility location-allocation model so that total supply chain costs, including raw rattan procurement costs as well as facilities opening and closing costs can be minimized. The location-allocation model will be presented in a mixed integer non-linear programming model and solved using MS-Excel Solver. The results are number and location of the warehouse along with the raw rattan allocation in the warehouse to ensure raw rattan supply for rattan industries.

  5. Produk Fermentasi Rumen dan Produksi Protein Mikroba Sapi Lokal yang Diberi Pakan Jerami Amoniasi dan Beberapa Bahan Pakan Sumber Energi

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    Novita Hindratiningrum

    2011-10-01

    Full Text Available Products of rumen fermentation and protein microbial of dairy cattle feed with rice bran ammonization and some feedstuffs as an energy sources ABSTRACT. This study aims to examine the energy sources of feed ingredients that can increase the production of Volatile Fatty Acids (VFA, N-NH3, microbial protein synthesis, total gas production and metabolic energy. The material used is as a source of rumen fluid inoculum from Frisian Holstein cows (FH females, amoniasi rice straw, salt, mineral mix brand "Ultra Minerals' production Eka Farma Semarang, onggok wet and dry, corn, and rice bran. Observed variable is the concentration of (VFA, N-NH3, rumen microbial protein synthesis, and total gas production. Based on the analysis of diversity seen any significant effect (P0.05 on microbial protein synthesis. Conclusion of research is the provision of energy sources with rice bran treatment, onggok wet and dry corn flour can be used as fermentable carbohydrates on feed hay amoniasi in vitro.

  6. Pengaruh Keanekaragaman Mesofauna dan Makrofauna Tanah terhadap Dekomposisi Bahan Organik Tanaman di Bawah Tegakan Sengon (Paraserianthes falcataria

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    WIRYANTO

    2007-05-01

    Full Text Available The purposes of the research were to know the influences of crop organic matters to diversity of soil mesofauna and macrofauna under paraserianthes’ stand (Paraserianthes falcataria, rate of organic matters decomposition, as well as the relationship between the rate of organic matters decomposition and diversity of soil mesofauna and macrofauna. The framework of thinking of this research was the crop organic matters which were given to the soil would influence the soil mesofauna and macrofauna diversities. The presence of soil fauna would help the decomposition process of organic matters which fertilize the soil. This research was established under paraseanthes’ stand, with 7 treatments of crop organic matters, i.e. cardamom, pineapple, cocoyam, cardamom- pineapple, cardamom-cocoyam, pineapple-cocoyam, cardamom-pineapple- cocoyam, and the treatment without crop organic matters (control. The sampling of mesofauna data used soil extraction “Barlesse-Tulgreen” method, meanwhile the macrofauna data were obtained from “Hand- Sorting” method and “Fill-Trapp” method. The sampling of decomposition rate data used Pudjiharta’s method (1995. The data which have been obtained were analyzed by using Analysis of Variance (ANAVA and continued with DMRT test. The Correlation test was done to find out the relationship between the rate of decomposition of crop organic matters and the soil mesofauna and macrofauna diversities. It can be concluded that the applying of crop organic matters influenced the soil mesofauna and macrofauna diversities. The highest coefficient value index of soil mesofauna diversity was 1.36 by using cardamom-cocoyam organic matters. The highest coefficient value index of the soil macrofauna diversity was1.11 by using pineapple organic matters. The highest coefficient value indexof macrofauna diversity on the surface of the soil was 1.27 by using pineapple organic matters. The crop organic matters of cardamom-cocoyam has the highest coefficient value decomposition rate, was 0.45. The crop organic matters of pineapple has the lowest coefficient value decomposition rate, was 0.15. The relation between the decomposition rate of crop organic matters and the soil mesofauna diversity index, the macrofauna in the soil, and macrofauna on the surface of the soil show the negative correlation, with the correlation coefficient value, were -0.01; -0.30;-0.001.

  7. Pembuatan Bahan Bakar Biodisel dari Minyak Jarak; Pengaruh Suhu dan Konsentrasi KOH pada Reaksi Transesterifikasi Berbasis Katalis Basa

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    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.

  8. Modifikasi Dan Karakterisasi Karet Alam Siklis (Resiprena 35) Dengan Anhidrida Maleat Sebagai Substituen Bahan Pengikat Cat Sintetis

    OpenAIRE

    Siregar, Muhammad Said

    2015-01-01

    Modification and characterization of cyclized natural rubber with maleic anhydride has been carried out to enhance its compatiblelity as substituent for synthetic paint binder. Cyclized natural rubber was modified by grafting of maleic anhydride in the melt phase in the internal mixer in the presence of comonomers styrene and benzoyl peroxide. Effect of rotor speed and reaction time were also studied by performing experiment with rotor speeds of 70, 80 and 90 rpm with reaction time: 6, 8 and...

  9. PENGERTING SUHU RENDAH UNTUK MENJAGA MUTU BAHAN PERTANIAN [Low Temperature Drying to Maintain the Quality of Agricultural Products

    OpenAIRE

    R Sarwono

    2005-01-01

    Drying equipment is an important unit operation in industrial processes. Reducing moisture content in order to prolog the storage time is very commonly used. There are many agricultural product which are very heat sensitive. To maintain the essential ingredient in those product, drying process should be applied at low temperature drying process gave lower drying rate, is time consuming and in general costly. Increasing drying rate by reducing the absolute humidity is this recommended. There a...

  10. JENIS - JENIS TUMBUHAN YANG DIGUNAKAN SEBAGAI BAHAN PERAWATAN KECANTIKAN DI PURI DAMAI DESA SINGAKERTA, KECAMATAN UBUD, KABUPATEN GIANYAR

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    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.

  11. 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...

  12. 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...

  13. Uji Aktivitas Antibakteri Ekstrak Air Bunga Kecombrang terhadap Bakteri E. coli dan S. aureus sebagai Bahan Pangan Fungsional

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    Adeng Hudaya

    2016-03-01

    Full Text Available The testing has been conducted research on the antibacterial activity of aqueous extracts of flowers kecombrang against E. coli and S. Aureus. This study was aims to provided scientific evidence of excellence kecombrang plants as functional food ingredients. Antibacterial activity assays performed using dispersive method. From the results of antibacterial testing kecombrang flower water extract against E. coli concentration of 20% = 0 mm, 40% = 0 mm, 60% = 4.8 mm, 80% = 5.2 mm, 100% = 7.3 mm and the test bacteria S. aureus concentration of 20% = 8.67 mm, 40% = 9.11 mm, 60% = 12:33 mm, 80% = 12:44 mm, 100% = 13.89 mm.

  14. 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...

  15. OPTIMASI BIOKRAFT JAMUR Phanerochaete chrysosporium TERHADAP KOMPONEN KIMIA CAMPURAN BATANG DAN LIMBAH CABANG MANGIUM SEBAGAI BAHAN BAKU PULP

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    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. Penggunaan Poliester Amida Pada Bioplastik Protein Kedelai Dari Limbah Padat Industri Tahu dengan Gliserol sebagai Bahan Pemlastis

    OpenAIRE

    Novayanty, Rena

    2015-01-01

    The objective of the research was to find out the characteristics bio-plastic film of soy protein – glycerol and bio-plastic film of soy protein– glycerol - polyester amide, and optimum comparison of soy protein – glycerol and polyester amide which are used in bio-plastic film from solid waste of tofu industry. The research includes the process of extraction of soy protein from tofu waste, the formation of bio-plastic film by using solution casting method with the variation of glycerol and ...

  17. Pemberian Tepung Daun Salam (Syzygium polyanthum (Wight Walp. dalam Ransum Sebagai Bahan Antibakteri Escherichia coli terhadap Organ Dalam Ayam Broiler

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    W. Hermana

    2008-04-01

    Full Text Available The objective of the present experiment was to evaluate the utilization of bay leaf (Syzygium polyanthum (Wight Walp. in the diets as antibacterial agent and its effect on the weight viscera organ of broilers. The experiment was arranged in a completely randomized design with six treatments and three replications. One hundred and eighty birds of five week-old broiler were used in the present experiment, and thirty six birds were decapitated to measure the weight of viscera. On day four, experimental animals were divided into six group of treatments and were provided standard diet. The treatments were as follows, Escherichia coli (E.coli-uninfected broiler without bay leaf (R0/positive control goup, E. coli-infected broiler without bay leaf (R1/negative control group, R1 + 1% bay leaf (R2, R1 + 2% bay leaf (R3, R1 + 3% bay leaf (R4, and R1 + 0.02% tetracycline (R5. The results showed that weight percentage of liver, spleen, heart, pancrease, bile and intestine were not affected by the addition of 1, 2 and 3% bay leaf (R2,R3 and R4 as compared to those of R0, R1 and R5. However, gizzard percentage of broiler given 3% bay leaf (R4 increased (P<0.01 to the value same as that of R0 (2.31 vs 2.71%. The highly significant (P<0.01 increased in weight percentage of kidney was also found due to the treatments, and the increase was significant (P<0.05 when R5 compared to R2 and R4. The addition of 2% (R3 and 3% (R4 bay leaf and 0.02% tetracycline (R5, as compared to R0, R1 and R2, could depress the number of E. coli in the excreta. In conclusion, the addition of bay leaf up to 3% was able to minimize the number of E. coli in excreta without negatively affecting weight of viscera of broiler chickens.

  18. Pemberian Tepung Daun Salam (Syzygium polyanthum (Wight) Walp.) dalam Ransum Sebagai Bahan Antibakteri Escherichia coli terhadap Organ Dalam Ayam Broiler

    OpenAIRE

    W. Hermana; D. I. Puspitasari; K.G Wiryawan; S. Suharti

    2008-01-01

    The objective of the present experiment was to evaluate the utilization of bay leaf (Syzygium polyanthum (Wight) Walp.) in the diets as antibacterial agent and its effect on the weight viscera organ of broilers. The experiment was arranged in a completely randomized design with six treatments and three replications. One hundred and eighty birds of five week-old broiler were used in the present experiment, and thirty six birds were decapitated to measure the weight of viscera. On day four, ex...

  19. Produk Fermentasi Rumen dan Produksi Protein Mikroba Sapi Lokal yang Diberi Pakan Jerami Amoniasi dan Beberapa Bahan Pakan Sumber Energi

    OpenAIRE

    Novita Hindratiningrum; Muhamad Bata; Setya Agus Santosa

    2011-01-01

    Products of rumen fermentation and protein microbial of dairy cattle feed with rice bran ammonization and some feedstuffs as an energy sources ABSTRACT. This study aims to examine the energy sources of feed ingredients that can increase the production of Volatile Fatty Acids (VFA), N-NH3, microbial protein synthesis, total gas production and metabolic energy. The material used is as a source of rumen fluid inoculum from Frisian Holstein cows (FH) females, amoniasi rice straw, salt, minera...

  20. Penyimpanan Buah Terung Dibelanda Dengan Kemasan Aktif Menggunakan Bahan Penyerap Oksigen,Karbondioksida,Uap Air Dan Etilen

    OpenAIRE

    Naibaho, Joncer

    2013-01-01

    The effect of modified atmosphere packaging on the physico-chemical composition such as weight loss, moisture content, vitamin C, total soluble solids (TSS), titratable acidity (TA), fruit hardness, color score and sensory characteristics such as color, flavor and texture of tamarillo was investigated at 10⁰C during 1, 2, 3 and 4 weeks of storage. The type of modified atmosphere packaging consisted of active modified atmosphere packaging with the combination of scavenger type such as oxygen s...

  1. ANALISIS TREN PENELITIAN PANGAN FUNGSIONAL: KATEGORI BAHAN SERAT PANGAN [Functional Food Research Trend Analysis: Dietary Fiber Category

    OpenAIRE

    Diah Anggraeni Jatraningrum

    2012-01-01

    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 technolo...

  2. DERMATITIS KONTAK PADA PEKERJA YANG TERPAJAN DENGAN BAHAN KIMIA DI PERUSAHAAN INDUSTRI OTOMOTIF KAWASAN INDUSTRI CIBITUNG JAWA BARAT

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    L. Meily Kurniawidjaja

    2008-12-01

    Full Text Available Factors Related to Occupational Contact Dermatitis on Workers Exposed to Chemicals used at Industrial Automotive Company. Occupational contact dermatitis is one of skin disease in industrial settings which may reduce worker productivities. The occupational contact dermatitis occurs when workers are come into contact with chemicals at part of the worker’s body. This chemical contact could lead to an occupational contact dermatitis. The objective of this research is to investigate factors related to the occupational contact dermatitis at the worker who come into contact with chemicals used in industrial automotive company in Indonesia, Cibitung Jawa Barat. The study design is a descriptive research. The research subjects were selected using a stratified random sampling, and the total subjects were 54 person. The data were collected based on physical examination by a medical doctor, and the research questionnaire. Result from this study indicated that 74% (40 workers experience dermatitis contact: acute dermatitis contact 26% (14 workers, sub acute 39% (21 workers, and chronic 9% (5 workers. Furthermore, data analysis using a multivariate statistical analysis indicated that there are three major factors related to the occurence of contact dermatitis: duration of contact, frequency of contact and the use of personal protective equipment (PPE particularly gloves. In conclusion, incidence rate of occupational dermatitis contact at industrial setting is 65%/100 worker, and prevalence rate of occupational dermatitis contact at industrial setting is 74%/100 worker. In order to minimize the occupational contact dermatitis it is recommended to raise the workers awareness, the correct type of gloves used specifically to the type of chemicals, as well as improving the workers knowledge.

  3. HASIL ANALISIS VITAMIN A DAN β-KAROTEN BAHAN MAKANAN SUMBER VITAMIN A DAN KAROTEN DENGAN METODE HPLC

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    Yuniar Rosmalina

    2012-11-01

    Full Text Available Telah dilakukan analisis vitamin A DAN β-Karoten terhadap beberapa jenis pangan dengan menggunakan metode HPLC. Analisis dilakukan terhadap 9 jenis serealia dan umbi-umbian, 3 jenis kacang-kacangan, 40 jenis sayuran, 11 jenis daging dan hasilnya, 7 jenis telur dan hasilnya, 8 jenis ikan, 12 jenis buah-buahaan, dan 7 jenis kelompok lain-lain. Hasilnya menunjukkan sumber β-Karoten yang tinggi pada kelompok serealia dan umbi-umbian adalah umbi jalar, pada kelompok sayuran adalah daun katuk, daun pepaya, daun singkong, daun melinjo, daun talas dan daun sintrong, pada kelompok telur adalah telur bebek, pada kelompok buah-buahan adalah mangga golek dan mangga gedong. Sedangkan kelompok kacang-kacangan dan kelompok daging kandungan β-Karotennya rendah. Hati ayam, hati bebek, dan hati kambing merupakan sumber vitamin A yang tinggi, sedangkan pada kelompok ikan didapati ikan lele mempunyai kandungan vitamin A yang lebih tinggi dibandingkan jenis ikan lainnya.

  4. HASIL ANALISIS VITAMIN A DAN β-KAROTEN BAHAN MAKANAN SUMBER VITAMIN A DAN KAROTEN DENGAN METODE HPLC

    OpenAIRE

    Yuniar Rosmalina; Dewi Permaesih

    2012-01-01

    Telah dilakukan analisis vitamin A DAN β-Karoten terhadap beberapa jenis pangan dengan menggunakan metode HPLC. Analisis dilakukan terhadap 9 jenis serealia dan umbi-umbian, 3 jenis kacang-kacangan, 40 jenis sayuran, 11 jenis daging dan hasilnya, 7 jenis telur dan hasilnya, 8 jenis ikan, 12 jenis buah-buahaan, dan 7 jenis kelompok lain-lain. Hasilnya menunjukkan sumber β-Karoten yang tinggi pada kelompok serealia dan umbi-umbian adalah umbi jalar, pada kelompok sayuran adalah daun katuk, daun...

  5. OPTIMALISASI PERTUMBUHAN DAN PRODUKSI TANAMAN SAWI HIJAU Brassica juncea L. SECARA HIDROPONIK DENGAN PEMBERIAN BERBAGAI BAHAN ORGANIK CAIR

    OpenAIRE

    Wahid, Tenri Sa'na

    2013-01-01

    The research about optimization the growth and production of green mustard plant Brassica juncea L. hydroponic by administering various liquid organic materials took place at the Agricultural Biotechnology Division of Center for Research and Development, Research and Development Society Center (LPPM) building 4th and 5th floors, University of Hasanuddin, Makassar, runs from January to March 2013. This research was aimed to select the best sources of hormones from various organic materials to ...

  6. Pemanfaatan Limbah Kulit Jeruk Keprok (Citrus Reticulata Blanco syn) Sebagai Bahan Penguat Nanokertas Selulosa Bakteri Dari Air Kelapa

    OpenAIRE

    Ichwani, Reisya

    2014-01-01

    Bacterial cellulose (BC) nanofibres combined with cellulose of orange peels organic waste (OP) have been used for the providing nanopaper. BC pellicle that has been crushed by home blender and combined with cellulose of orange peels in various concentration. The content of cellulose in bacterial cellulose pellicle is 4,53 % in nanosized and the cellulose content in the orange peels is 5,63 % in microsized. After preparing in sheet, the characterization has been done including m...

  7. Ketangguhan Retak Dinamik Bahan Komposit GFRP Untuk Helmet Industri Disebabkan Beban Impak Menggunakan MSC/NASTRAN For Windows

    OpenAIRE

    Jusnita

    2010-01-01

    This research is to study computer simulation of glass fiber reinforced plastic (GFRP) plate specimen, by finite element method. Its goal is to know the stress intensity factor and compared them with the critical intensity factor (fracture toughanes/obtained using experimental method. The simulation utilized MSC MSN/NASTRAN for Window software and FEMAP sub program with impact load model. To simplify the simulation process, specimens were drawn in half because of its symmetric. Small meshes...

  8. 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...

  9. Analisa Performansi Pada Mobil Toyota Fortuner Mesin Diesel Tipe 2KD-FTV VN Turbo Intercooler

    OpenAIRE

    Ginting, Andi Setiawan

    2016-01-01

    Direct Four Stroke Turbo Commonrail Injection yang dikenal dengan D4D merupakan kemajuan teknologi pada industri otomotif khususnya dalam hal penyempurnaan performansi mesin. D4D adalah teknologi pengaturan laju tekanan bahan bakar dari sisi kuantitas dan waktu penyemprotan bahan bakar secara elektronik. Kelebihan yang dimiliki oleh mesin D4D adalah dengan penggunaan sistem commonrail dimana bahan bakar solar akan dihisap oleh pompa bahan bakar melalui saringan bahan bakar agar dapat menghasi...

  10. Analisa Performansi Pada Mobil Toyota Kijang Innova Mesin Diesel Tipe 2KD-FTV

    OpenAIRE

    Hutapea, Chandra M.

    2012-01-01

    Direct Four Stroke Turbo Commonrail Injection yang dikenal dengan D4D merupakan kemajuan teknologi pada industri otomotif khususnya dalam hal penyempurnaan performansi mesin. D4D adalah teknologi pengaturan laju tekanan bahan bakar dari sisi kuantitas dan waktu penyemprotan bahan bakar secara elektronik. Kelebihan yang dimiliki oleh mesin D4D adalah dengan penggunaan sistem commonrail dimana bahan bakar solar akan dihisap oleh pompa bahan bakar melalui saringan bahan bakar agar dapat men...

  11. Induksi Ekstrak Pegagan Secara in vitro terhadap Proliferasi dan Diferensiasi Sel-Sel Otak Besar Anak Tikus (IN VITRO INDUCTION OF CENTELLA ASIATICA (PEGAGAN EXTRACT ON THE PROLIFERATION AND DIFFERENTIATION OF NEWBORN RAT CORTEX CEREBRI CELLS

    Directory of Open Access Journals (Sweden)

    Ita Djuwita

    2013-09-01

    Full Text Available The aim of the study was to analyze the potency of Centella asiatica extract to induce proliferation andneurogenesis process of newborn rats cortex cerebri.   Research has been conducted on in vitro culture ofthree days old rat (Sprague Dawley cerebrum cells in DMEM (Dulbecco’s Modiûed Eagle’s Mediumcontaining 10% NEAA (Non Essential Amino Acid, 1 mM NaHCO3, 10% NBCS (Newborn Calf Serumand 50 µg/mL gentamycin (mDMEM, with and without Centella asiatica (CA leaf extracts. The experimentwas set in five groups of treatment consisted of positive control (mDMEM+30 µg/mL asiaticoside (AC,negative control (mDMEM, and mDMEM with three concentration of CA extract i.e. 100 ppm, 200 ppmand 400 ppm. Culture was done in 5% CO2 incubator at 37oC for six days. The parameters observed werecells proliferation based on Population Doubling Time (PDT, neuron and glia composition, and the lengthof axon and dendrite. Cells concentration were counted using Newbauer hemocytometer.  Neuron and gliacells were determined based on morphology after Hematoxylin-Eosin staining, and the length of axon anddendrite were measured using eyepiece micrometer. Data were analyzed using ANOVA and Duncan test.The results showed that Centella asiatica extract at concentration 100 ppm could induce neurogenesisand increased the axon length growth.  However, at concentration 200 and 400 ppm, CA extract  inhibitedthe neuronal cells proliferation and the axonal growth (P<0,05. In conclusion, induction of Centella asiaticaextracts at concentration of 100 ppm on the cortex cell cerebrum cells culture increase the axon lengthgrowth and tends to induce neurogenesis; however at higher concentration CA extract was neurotoxic.

  12. TOPLUMDA KİŞİSEL MARKA OLMAK: TÜRKİYE’NİN KİŞİSEL MARKALARI / BECOMING PERSONAL BRAND IN SOCIETY: PERSONAL BRANDS OF TURKEY

    Directory of Open Access Journals (Sweden)

    Fikret YAMAN

    2012-12-01

    Full Text Available Günümüzde sadece ürünler, işletmeler değil aynı zamanda kişiler de marka olmaktadırlar. Kişisel markalar; toplum tarafından benimsenmiş, örnek alınan kişilerdir. Toplumdaki bireyler, kişisel marka olarak gördükleri kişiler gibi davranmaya çalışmaktadırlar. Kişisel markalar; toplumun kanaat önderleri, fikir liderleri olarak karşımıza çıkmaktadırlar. Çalışmada Türk halkının siyasetten spora, sinemadan iş dünyasına kadar kimleri kişisel marka olarak gördükleri ve kişisel marka kavramının bölgelere göre gösterdiği farklılıklar ortaya konmaya çalışılmıştır. Abstract Today, not only the products and firms but also individuals become mark. Personal brands are those adopted by the society and also taken as sample. Individuals in the community are trying to act similar such the people see them as a personal brand. Personal brands acoordingly appear as opinion leaders of the community In this study, it is aimed at explaining to whom Turkish people adopt as a personal brand from politics to sport, from movie to business world and also clarifiying how the concept of personal brand differantiate in regional areas.

  13. SENYAWA BIOAKTIF RIMPANG JAHE (Zingiber officinale Roscue MENINGKATKAN RESPON SITOLITIK SEL NK TERHADAP SEL KANKER DARAH K-562 IN VITRO [Ginger Root Bioactive Compounds Increased Cytolitic Response of Natural Killer (NK Cells Against Leucemic Cell Line K-562 In Vitro

    Directory of Open Access Journals (Sweden)

    Fransiska Rungkat Zakaria 2

    2006-08-01

    Full Text Available Natural killer (NK cell, a kind of lymphocyte cells, plays an important role in attacking infectious, immature, and cancer cell. Its function could be modulated by food bioactive compounds. This experiment was conducted to investigate the effects of ginger root bioactive compounds such as oleoresin, gingerol, and shogaol on cytolitic response of NK cell in vitro. Lymphocyte cells were isolated by centrifugation on ficoll-hypaque density (1,77 ?0,001 g/ml method. Leukemic cells line K-562 as target cells(TC labelled by [3H]-timidin, together with lymphocyte as effector cell (EC were cultured in two ratio levels of EC : TC equal to 1:50 and 1:100, and two culture conditions, for 4 hours, respectively. Paraquate dichloride (1,1-dimethyl-4,4-bipyridilium dichloride 3 mM was used to induce stress oxidative circumstance. Cytolytic capacity of NK cells was determined by percentage of TC lysed by NK cells, in normal and oxidative stress conditions. Statistical analysis showed that the effects of ginger bioactive compounds on cytolytic response of NK cell depended on the culture conditions, as shown by cultures in the presence of oleoresin, and gingerol, but not shogaol. In the lymphocyte culture without stress oxidative, oleoresin, gingerol and shogaol compounds increased significantly cytolytic response of NK cells cultured at a ratio of TC : EC equal to 1:50, with the highest increament of 65 % at oleoresin concentration of 50 ?g/ml. However, in culture at a ratio of TC : EC equals to 1:100, only oleoresin at a concentration of 50 ?g/ml increased significantly cytolytic response of NK cells with the highest increament of 8 %. Shogaol did not affect significantly NK cells cytolytic response. Under stress oxidative conditions, shogaol increased significantly cytolytic response of NK cells cultured at a ratio of TC:EC equal to 1:50, but the highest increament of 56 % , was by oleoresin at concentration of 50 ?g/ml. Meanwhile, oleoresin and gingerol did not increased significantly cytolytic response of NK cells. At a culture- ratio of TC: EC equal to 1:100, gingerol increased significantly cytolytic response of NK cells of 21 % at a concentration of 50 ?g/ml. However, oleoresin did not increased significantly cytolytic response of NK cells. In contrast, shogaol decreased significantly cytolytic response of NK cell with the highest decreament of 16 % at 200 ?g/ml. These findings verified that ginger root bioactive compounds increased cytolityc response of NK cells in destroying cancer cells, at certain conditions and concentrations, especially at low concentrations.

  14. Ö?RETMENIN YÇSEL VE DI?SAL GÜDÜLENMESININ Ö?RENCI KATILIMINA ETKISI: Ö?RETMENIN YÇSEL VE DI?SAL GÜDÜLENMESININ Ö?RENCI KATILIMINA ETKISI:

    OpenAIRE

    Demir, Kamile

    2011-01-01

    Ara?tyrmanyn amacy öz-belirleme kuramy do?rultusunda ö?retmenin i?e güdülenme düzeylerinin ö?renci katylymyna etkisini ortaya koymaktyr. Ara?tyrmanyn çaly?ma grubu Edirne ilindeki 29 ilkö?retim okulunda görev yapan 289 ö?retmenden olu?maktadyr. Veri toplama aracynda Ö?retmen Güdülenme ve Ö?renci Katylym Ölçekleri olmak üzere iki ölçek yer almaktadyr. Ara?tyrmada yapysal e?itlik modellemesi teknikleri kullanylarak, geli?tirilen model LISREL 8.3 programy ile test edilmi?tir. Tahmin prosedüründe...

  15. "en este aff ösel" in Visby : Ösel and Estland in the Gotlandic account books of Ivar Axelsson Tott 1585-87 and Sören Norby 1524-25 / Jan-Christian Schlüter

    Index Scriptorium Estoniae

    Schlüter, Jan-Christian, 1979-

    2008-01-01

    Ojamaa ja Saaremaa kontaktidest on vähe teada perioodist Saksa ordu ja Rootsi kuningate valitsemisaja vahel. Ivar Axelsson Totti ja Sören Nörby arveraamatutes mainitud kohanimede seas on Eestiga seotud nimedel küllalt suur osakaal. Ka esineb kaptenite palgaarvetel Eestist pärit isikute nimesid

  16. Selenoprotein S expression in reactive astrocytes following brain injury.

    Science.gov (United States)

    Fradejas, Noelia; Serrano-Pérez, Maria Del Carmen; Tranque, Pedro; Calvo, Soledad

    2011-06-01

    Selenoprotein S (SelS) is an endoplasmic reticulum (ER)-resident protein involved in the unfolded protein response. Besides reducing ER-stress, SelS attenuates inflammation by decreasing pro-inflammatory cytokines. We have recently shown that SelS is responsive to ischemia in cultured astrocytes. To check the possible association of SelS with astrocyte activation, here we investigate the expression of SelS in two models of brain injury: kainic acid (KA) induced excitotoxicity and cortical mechanical lesion. The regulation of SelS and its functional consequences for neuroinflammation, ER-stress, and cell survival were further analyzed using cultured astrocytes from mouse and human. According to our immunofluorescence analysis, SelS expression is prominent in neurons and hardly detectable in astrocytes from control mice. However, brain injury intensely upregulates SelS, specifically in reactive astrocytes. SelS induction by KA was evident at 12 h and faded out after reaching maximum levels at 3-4 days. Analysis of mRNA and protein expression in cultured astrocytes showed SelS upregulation by inflammatory stimuli as well as ER-stress inducers. In turn, siRNA-mediated SelS silencing combined with adenoviral overexpression assays demonstrated that SelS reduces ER-stress markers CHOP and spliced XBP-1, as well as inflammatory cytokines IL-1β and IL-6 in stimulated astrocytes. SelS overexpression increased astrocyte resistance to ER-stress and inflammatory stimuli. Conversely, SelS suppression compromised astrocyte viability. In summary, our results reveal the upregulation of SelS expression in reactive astrocytes, as well as a new protective role for SelS against inflammation and ER-stress that can be relevant to astrocyte function in the context of inflammatory neuropathologies. PMID:21456042

  17. KOMBINASI ULTRAFILTRASI DAN DISSOLVED AIR FLOTATION UNTUK PEMEKATAN MIKROALGA

    Directory of Open Access Journals (Sweden)

    I Nyoman Widiasa

    2014-05-01

    Full Text Available Abstrak Mikroalga merupakan mikroorganisme fotosintetik prokariotik atau eukariotik yang dapat tumbuh dengan cepat. Pemanfaatan mikroalga tidak hanya berorientasi sebagai pakan alami untuk akuakultur, tetapi terus berkembang untuk bahan baku produksi pakan ternak, pigmen warna, bahan farmasi (β-carotene, antibiotik, asam lemak omega-3, bahan kosmetik, pupuk organik, dan biofuel (biodiesel, bioetanol, biogas, dan biohidrogen. Studi ini bertujuan untuk menginvestigasi kombinasi ultrafiltrasi (UF – dissolved air flotation (DAF untuk pemekatan mikroalga skala laboratorium. Hasil penelitian menunjukkan bahwa penurunan fluks membran UF secara tajam sebagai akibat dari deposisi sel mikroalga terjadi pada 20 menit pertama proses filtrasi. Backwash pada interval 20 menit selama 10 detik dengan tekanan 1 bar memberikan pengendalian fouling yang efektif dalam nilai kestabilan fluks yang layak. Membran UF yang digunakan dapat memberikan selektivitas pemisahan biomassa mikroalga ~ 100%. Kualitas permeat sangat stabil, yaitu kekeruhan < 0,5 NTU, kandungan organik < 10 mg/L, dan warna < 10 PCU. Lebih lanjut, pemekatan retentat membran dengan DAF pada tekanan saturasi 6 bar dapat menghasilkan pasta mikroalga dengan konsentrasi 20 g/L. Koagulan PAC perlu ditambahkan kedalam umpan DAF dengan dosis 1,3–1,6 mg PAC/mg padatan tersuspensi.   Kata Kunci: ultrafiltrasi; dissolved air flotation; pemanenan mikroalga; pemekatan mikroalga   Abstract COMBINATION OF Ultrafiltration and Dissolved Air Flotation for Microalgae CONCENTRATION. Microalgae is a prokaryotic photosynthetic microorganism or eukaryotic microorganism  that proliferate rapidly. Cultivation of the microalgae is not only oriented  as natural food for aquacultures, but also developed  for animal food, color pigment, pharmaceutical raw material (β-carotene, antibiotic, fatty acid omega-3, cosmetic raw material, organic fertilizer, and biofuels (biodiesel, bioethanol, biogas, and biohydrogen. This

  18. OPTIMASI CRANKING AMPERE AKI DI P.T. "X"

    Directory of Open Access Journals (Sweden)

    Didik Wahjudi

    2001-01-01

    Full Text Available Accumulator products of P.T. "X" that have accumulator of 221 CA can not fulfil Japanese, Europe and U.S. standards that require minimum cranking ampere of 275 CA. By using fishbone diagram suspected affecting factors to accumulator cranking ampere are obtained. Company chooses factors that are allowed to be experimented. There are 4 chosen factors. Each factors has 3 levels that are charging time interval (30 minutes, 60 minutes, 90 minutes, cell plate thickness (1.2 mm, 1.4 mm, 1,6 mm, material purity percentage (96%, 97%, 98%, and charging current (160 A, 170 A, 180 A. From the data, the experiment combination is done by using orthogonal array that is one of the Taguchi's method steps. From the analysis the best combination is obtained that is charging time interval of 60 minutes, cell plate thickness of 1.4 mm, material purity percentage of 98%, and charging current of 180 A. This combination can increase cranking ampere to 278 CA. Verification test proves that cranking ampere of 278 CA can be attained. Abstract in Bahasa Indonesia : Produk aki di P.T. "X" memiliki cranking ampere 221 CA sehingga tidak bisa memenuhi permintaan pasar Jepang, Eropa dan Amerika yang mempersyaratkan cranking ampere minimal 275 CA. Dengan menggunakan diagram tulang ikan didapat faktor-faktor yang diduga berpengaruh terhadap cranking ampere aki. Perusahaan memilih faktor-faktor yang bisa dieksperimentasikan. Faktor-faktor yang dipilih berjumlah 4 faktor dan masing-masing faktor memiliki 3 level, yaitu: interval waktu charging (30 menit, 60 menit, 90 menit, tebal plat sel (1,2 mm, 1,4 mm, 1,6 mm, persentase kemurnian bahan (96%, 97%, 98%, dan besar kuat arus charging (160 A, 170 A, 180 A. Dari data tersebut, dilakukan kombinasi percobaan dengan menggunakan matriks ortogonal yang merupakan salah satu langkah dari metode Taguchi. Dari hasil analisa didapatkan hasil kombinasi terbaik ialah interval waktu charging 60 menit, tebal plat sel 1,4 mm, persentase kemurnian

  19. Apolo y los Seléucidas o la construcción de una identidad dinástica

    OpenAIRE

    Aldea Celada, José Manuel

    2013-01-01

    The relation between the god Apollo and Seleucid rulers has been studied in recent history on several occassions. However, we considerate necessary to further analize the sources behind those which we can use to reconstruct this aspect together with fundamental with the new dynasty identity. In doing so involves an analysis of the literary, numismatic and epigraphic sources in relation to ?rst Seleucid kings (from Seleucus I until Antiochus IV), with intention of ?nding the strategies employe...

  20. Kuidas toetate sel õppeaastal oma valla koolilapsi? / Külle Viks, Helen Metsma, Aivar Surva...[jt.

    Index Scriptorium Estoniae

    2009-01-01

    Küsimusele vastavad: Türi vallavalitsuse haridusspetsialist Külle Viks, Sõmerpalu valla lastekaitse ja sotsiaaltoetuste spetsialist Helen Metsma, Mäetaguse vallavanem Aivar Surva, Rapla abivallavanem Imbi Kalberg, Kärdla linna haridusnõunik Juta Alev, Albu vallavalitsuse sotsiaalnõunik Claire Miljukova, Võru linnavalitsuse haridusspetsialist Kristi Aavakivi

  1. Efek Penambahan Kitosan Molekul Tinggi Nanopartikel Pada Abu Sekam Padi Nanopartikel Terhadap Viabilitas Sel Pulpa (In Vitro).

    OpenAIRE

    Silalahi, Pretty Farida Sinta

    2016-01-01

    Maintenance of a healthy pulp tissue is important for the function and vitality of teeth. Direct and indirect pulp capping materials which is often used to maintain the pulp tissue are calcium hydroxide, Mineral Trioxide Aggregate (MTA), and RMGIC (Resin Modified Glass Ionomer Cement). However, these materials have disadvantages, such as arsenic relase in MTA and HEMA from RMGIC. Previous research indicates High Molecular Chitosan Nanoparticles (HMCn) could stimulate cell proliferation becaus...

  2. Kogu Eestimaa internetiseerimise kava jääb sel aastal veel lõpetamata / Margus Konnula

    Index Scriptorium Estoniae

    Konnula, Margus, 1974-

    2007-01-01

    Interneti leviala ei ole veel jõudnud Vormsi saarele ega Mahtra külla, projekti Külatee 3 raames otsitakse nn. leviaukudele veel lahendusi. Internetiportaali www.WiFi.ee toimetaja Veljo Haameri väitel on Eestis tuhandeid probleemseid kohti ning Eesti ei ole kindlasti maailma juhtriik inimeste "digitaalses kaasamises". Kaart: Kõue interneti leviala

  3. Antioksidan Ekstrak Air Biji Kopi Robusta Lampung dalam Menghambat Degenerasi Sel Hati Tikus Model Hepatitis yang Diinduksi CCL4

    Directory of Open Access Journals (Sweden)

    Asep Sukohar

    2012-09-01

    Full Text Available Liver plays an important role in maintaining homeostasis and is critical for physiological functions of other organs. Morphological changes of the liver will have an impact on changes in liver function and may appear as clinical manifestations. Hepatitis is a serious disorder that causes inflammation of the liver cells and is caused by viruses, chemicals and toxins. Reactions that occur in the form of oxidative stress, free radicals dominant condition of antioxidants. Traditionally coffee is used as an everyday beverage and known as antioxidants because it contains flavonoids (chlorogenic acid. This study aim was to determine the hepatoprotective/antioxidant effect of coffee growing in Pesawaran Lampung, on the description of hepatocyte cell damage in Wistar rats hepatitis model induced with carbon tetrachloride (CCl4. Laboratory experimental research has been conducted in Pharmacology >Department, Faculty Medicine Padjadjaran University Bandung and pathology examinations was performed at the Hospital Abdoel Moeloek Lampung in December 2008–July 2009, using 15 male Wistar rats divided in three groups, the negative control group, positive control as a model of hepatitis, and hepatitis model that received the water extract of robusta coffee beans 25 mg/kgBW/days for 7 days and then received CCl4 induction. The results were analyzed by analysis of variance and independent t test. Administration of water extract of robusta coffee beans can prevented damage to the liver cell degeneration picture from 58.4±7.09 to 34.4±5.85, these results differed significantly (p≤0.05 compared with positive and negative control. In conclusion, water extract of robusta coffee beans has the potential to prevent interference with the effects of liver function as antioxidants in the ra model of hepatitis which has been inducted with CCL4.

  4. Docetaxel Hidrat Menghambat Proliferasi dan Metastasis Sel Kanker Oral SP-C1 melalui Induksi Protein Maspin

    Directory of Open Access Journals (Sweden)

    Supriatno Supriatno

    2013-07-01

    Full Text Available Human oral tongue cancer (SP-C1 is thought to be a high grade malignancy. Despite advances in surgery, radiotherapy, chemotherapy and combination therapy, prognosis and survival of patients with human tongue cancer have not significantly improved over the past several decades. Treatment options for recurrent or refractory tongue cancer are limited. Therefore, as a strategy for refractory cancer, anti-mitotic chemotherapy and its mechanisms are of considerable interest, including those using docetaxel hydrate for inducing maspin protein. In the current study, the mechanisms responsible for growth suppression and metastasis of SP-C1 by docetaxel hydrate through induction of maspin regulation were investigated. To evaluate in vitro cell proliferation and cell metastasis, MTT and out-growth assays were performed, respectively. Furthermore, the expression of maspin mediated by docetaxel hydrate was analysed by Western blotting. The results showed that treatment with 50 g/ml docetaxel hydrate significantly suppressed SP-C1 cell growth from day 1. Strong inhibition of metastasis of SP-C1 cells was also shown by treatment with 50 g/ml of docetaxel hydrate. Moreover, a significant induction of maspin regulation was detected in cells treated with 10 and 50 g/ml of docetaxel hydrate. However, the same protein level was demonstrated in -tubulin expression. These findings suggest that docetaxel hydrate may have potential for powerful anti-mitotic chemotherapy through induction of maspin regulation.DOI: 10.14693/jdi.v15i1.77

  5. Senyawa Brusein-A dari Buah Makasar (Brucea javanica (L. Merr. sebagai Antiproliferasi terhadap Sel Kanker Payudara T47D

    Directory of Open Access Journals (Sweden)

    Subeki

    2015-03-01

    Full Text Available Breast cancer is currenly the number one cancer of all cancers attacking women, especially those who live in developing countries including Indonesia. Therefore, the pursuit of drugs for breast cancer is still needed. The aim of this study was to determine the anti proliferative activity of brucein-A against breast cancer T47D cells in vitro. Bruceine-A was isolated from “buah makasar” (Brucea javanica (L. Merr and the structure of the isolated compound was elucidated by spectral data. The activities of anticancer were evaluated from the antiproliferative effects on T47D breast cancer cell line . The antiproliferative effects were examined in cultured cells stained with sulforhodamin B. Each well contained 30,000 cells, which was treated with bruceine-A in 10 concentration variations of 0.04 µg/mL, 0.08 µg/mL, 0.16 µg/mL, 0.31 µg/mL, 0.63 µg/mL, 1.25 µg/mL, 2.5 µg/mL, 5 µg/mL, 10 µg/mL, and 20 µg/mL for 72 hours. The experiment was replicated twice and the inhibitory percentage of cells was then calculated. The results showed that the IC50 value of bruceine-A on T47D cells as anantiproliferative effect was0.54 µg/mL with cisplatin 0.43 µg/mL as the positive control. In conclusion, bruceine-A has an antiproliferative activity on T47D breast cancer cell line.

  6. Traitement du foisonnement filamenteux dû à Microthrix parvicella par ajout de sels métalliques

    OpenAIRE

    Durban, N.; Juzan, L.; Krier, J.; Héduit, A.; Gillot, S.

    2012-01-01

    / Les dysfonctionnements biologiques dus au développement de bactéries filamenteuses posent de nombreux problèmes d’exploitation aux stations d'épuration du type boues activées. Le filament le plus souvent mis en cause dans ce type de dysfonctionnement en France est Microthrix parvicella. La solution curative la plus utilisée actuellement est la chloration, traitement efficace mais non spécifique, qui impacte également la biologie des boues activées. Une solution émergente consiste à ut...

  7. Estudio de la movilidad que presenta el diésel en un suelo contaminado empleando surfactantes

    OpenAIRE

    Ávila Salazar, J. Trinidad

    2016-01-01

    La contaminación de suelos con hidrocarburos de petróleo en México es un problema que se ha vuelto muy común en nuestros días, debido principalmente a derrames, así como a las actividades propias de la industria petrolera. Algunos suelos contaminados, principalmente en el sureste de México, contienen concentraciones de hidrocarburos hasta de 450,000 mg/kg. Por dichas razones, una de las preocupaciones de las autoridades ambientales es el desarrollo de tecnologías eficientes y económicamente f...

  8. PENGARUH KEAHLIAN, INDEPENDENSI, DAN ETIKA TERHADAP KUALITAS AUDIT (Studi pada Auditor Pemerintah di BPKP Perwakilan Provinsi Sul-Sel)

    OpenAIRE

    DEWI RIHARNA NAJIB, AYU

    2013-01-01

    Penelitian ini bertujuan untuk menganalisis pengaruh keahlian (kompetensi), independensi, dan etika terhadap kualitas audit pada auditor pemerintah di BPKP Perwakilan Provinsi Sulawesi Selatan. Data penelitian ini diperoleh dari kuesioner (primer) pada auditor pemerintah (auditor eksternal) yang disebar kepada 50 responden. Jenis penelitian ini adalah penelitian kausalitas. Uji hipotesis dengan menggunakan regresi sederhana menunjukkan bahwa keahlian berpengaruh signifikan terhadap variabel k...

  9. Water Seri raskused partnerite kanda. Tõehetk sel nädalal / Alyona Stadnik ; kommenteerinud Tõnis Kurrik, Enno Heringson

    Index Scriptorium Estoniae

    Stadnik, Alyona

    2011-01-01

    Sindi Vesi muutis kuu pärast riigihanke väljakuulutamist linna vee- ja kanalisatsioonitorustike hanke tingimust, täitmistagatise garantii tuleb esitada 28 päeva jooksul pärast lepingule allakirjutamist. Töid alustanud Water Ser Lääne-Eesti pole siiani garantiid esitanud. Vt. ka: Stadnik, Alyona. Water Ser esitas Sindi projektile garantiipaberi. Äripäev 26. mai, lk. 9

  10. USA ja Iraak püüavad jõuda sel aastal vägede lepinguni / Kaivo Kopli

    Index Scriptorium Estoniae

    Kopli, Kaivo

    2008-01-01

    USA ja Iraak püüavad enne 31. juulit sõlmida lepingu, mis käsitleb USA vägede viibimist Iraagis. Washington Posti andmeil on valitsused loobunud laiahaardelise ja pikaajalise vägede lepingu sõlmimisest, keskendudes nn. sillakavale, mis oleks üleminekuleping ja peaks võimaldama USA sõjaliste operatsioonide jätkamist pärast ÜRO mandaadi lõppu. Lisa: USA taandub roheliset tsoonist?

  11. Etude de la réduction électrochimique d'oxydes d'actinides en milieu sels fondus

    OpenAIRE

    Claux, Benoît

    2011-01-01

    Reactive metals are currently produced from their oxide by multiple steps reduction techniques. A one step route from the oxide to the metal has been suggested for metallic titanium production by electrolysis in high temperature molten chloride salts. In the so-called FFC process, titanium oxide is electrochemically reduced at the cathode, generating O2- ions, which are converted on a graphite anode into carbon oxide or dioxide. After this process, the spent salt can in principle be reused fo...

  12. İLİŞKİSEL PAZARLAMA ANLAYIŞINDA MÜŞTERİ SADAKATİ OLGUSUNUN İNCELENMESİ

    OpenAIRE

    YURDAKUL, MÜBERRA

    2015-01-01

    Increased competition in today’s business environment has forced companies to establish long-term relationships with custumers in marketing literature, this relationship is conceptralised as “Relationship Marketing” which is situated on strong foundations of offering high service quality. The basic principle of relationship marketing is to create customer’s loyalty. İn this study, the comporents customer’s loyalty, its models and programsa re presented

  13. Hubungan Pertambahan Usia Dengan Fungsi Sel Β (Insulin, Proinsulin, Rasio Proinsulin-Insulin Dan Homa-B)

    OpenAIRE

    Lubis, Dian Anindita

    2015-01-01

    Ageing is associated with a decline of many human physiological functions. The reduction in carbohydrate metabolism in the elderly is one of the hallmarks of aging process, and substantial evidence shows that increasing age is associated with decreased glucose tolerance and type 2 diabetes. This finding could reflect beta cell failure in ageing. The aim of this present study was to assess the correlation of ageing with beta cell function (proinsulin, insulin, proinsulin-to-insulin ratio a...

  14. Euroopa Komisjoni otsus Kesko ja ICA ühisfirma osas tuleb sel kuul / Andres Kärssin

    Index Scriptorium Estoniae

    Kärssin, Andres, 1971-

    2004-01-01

    Kesko ja ICA teatasid 2003. aasta detsembris, et plaanivad luua ühisfirma ettevõtte seniste üksuste põhjal Eestis, Lätis ja Leedus tegutsemiseks Baltimaade toidukaupade turul. Ettevõtete ühinemisplaani suhtes peaks novembrikuu jooksul otsuse tegema Euroopa Komisjoni Konkurentsi Peadirektoraat

  15. Uji Fungsional dan Karakteristik Sel Punca Hematopoetik Hasil Isolasi dari Darah Tali Pusat Manusia Menggunakan Metode Modifikasi Unpad- Aster

    Directory of Open Access Journals (Sweden)

    Tono Djuwantono

    2011-12-01

    Full Text Available The conventional method of mononuclear cells (MNCs isolation from human umbilical cord blood (UCB yielded high erythrocyte contamination level. Therefore, the aim of this study was to assess the differences of cell viability and erythrocyte contamination on the population of UCB MNCs in our modified isolation method. This study was also aimed to test the function and characteristic of human MNCs derived from UCB as the basis for the development of UCB banking in Indonesia. The study was conducted in Department of Obstetry and Ginecology >RS Dr. Hasan Sadikin Bandung in period of January–October 2010. The modified isolation method (namely Unpad Aster’s modification yielded 5.1x106 MNC cell/mL has lower erythrocyte contamination level than conventional method. The morphology of MNCs cultured in unrestricted somatic stem cells (USSCs medium looked like adhered cells (attached at the surface of culture flask, spindle-shaped cells with positive luster of ifferentiation-90 (CD-90 (leukocyte antigen and cluster of differentiation-105 (CD-105 and could differentiate into neuronal cells and adipocytes. While the morphology of cord blood-derived multipotent progenitor cells (CB-MPCs looked like fibroblast cells with positive cluster of differentiation-45 (CD-45 (antigen hematopoietic and could differentiate into neuronal cells. In conclusions, the Unpad-Aster’s modified isolation method gives lower level of erythrocyte contamination compared with conventional method. Mononuclear cells derived from UCB could differentiate into neuronal cells and adipocytes.

  16. Uji Fungsional dan Karakteristik Sel Punca Hematopoetik Hasil Isolasi dari Darah Tali Pusat Manusia Menggunakan Metode Modifikasi Unpad- Aster

    OpenAIRE

    Tono Djuwantono; Firman F. Wirakusumah; Leri Septiani; Ike Kristina; Devi Natalia; Danny Halim; Ahmad Faried

    2011-01-01

    The conventional method of mononuclear cells (MNCs) isolation from human umbilical cord blood (UCB) yielded high erythrocyte contamination level. Therefore, the aim of this study was to assess the differences of cell viability and erythrocyte contamination on the population of UCB MNCs in our modified isolation method. This study was also aimed to test the function and characteristic of human MNCs derived from UCB as the basis for the development of UCB banking in Indonesia. The study was con...

  17. The inhibition of malignant epithelial cells in mucosal injury in the oral cavity of strains by pomegranate fruit extract (Punica granatum linn through Bcl-2 expression

    Directory of Open Access Journals (Sweden)

    Sri Hernawati

    2013-03-01

    of EA in the malignant epithelial cells of the oral mucosa of those mice. Conclusion: It may be concluded that the provision of the PGL can kill malignant cells in the oral cavity of mice by increasing apoptosis through decreasing Bcl-2 expression that was higher than the provision of EA.latar belakang: Karsinoma sel skuamosa rongga mulut adalah istilah yang digunakan menyebut neoplasma ganas berasal dari epitel. Neoplasma ganas adalah sel yang telah berubah struktur dan fungsi, sehingga mengalami peningkatan jumlah secara abnormal,invasif dan metastasis. Terjadinya karsinoma salah satu disebabkan oleh karena hambatan apoptosis terhadap sel ganas. Bcl-2 adalah protoonkogen keluarga Bcl yang berperan menghambat proses apoptosis sel dan bekerja menekan protein Bax (pro apoptosis. Berbagai upaya penatalaksanaan penyakit kanker masih banyak menemui kendala,sehingga peneliti menggali tanaman obat yaitu buah delima. Buah delima sebagai tanaman obat, mudah didapat dan harganya murah. Ellagic acid (EA senyawa tunggal bahan aktif dari ekstrak buah delima yang memiliki aktivitas sebagai anti kanker secara in-vitro tetapi EA aktivitas dan konsentrasinya dalam plasma rendah, kelarutan dalam air rendah, metabolisme (EA tidak larut dalam intestinal. Fakta ini mendorong peneliti untuk membandingkan dengan whole ekstrak delima (PGL yang terdiri dari beberapa senyawa bahan aktif, tidak hanya ellagic acid, memungkinkan beberapa senyawa bahan aktif pada PGL bisa bekerja sinergis, sehingga efeknya lebih poten. tujuan: Tujuan penelitian ini membandingkan antara EA, dengan whole ekstrak buah delima (PGL dalam menurunkan ekspresi Bcl-2. Metode: Metode penelitian yang digunakan adalah eksperimental laboratories, 32 ekor mencit (Balb/c, jantan, umur 5 bulan dibagi secara random menjadi 4 kelompok, 2 kelompok kontrol (K0: tidak dipapar benzopirene dan tidak diberi perlakuan, K1: dipapar benzopirene dan tidak diberi perlakuan, 2 kelompok perlakuan (P1: dipapar benzopirene dan diberi EA, P2

  18. Pengujian Pemanas Air Tenaga Surya Sistem Pipa Panas Menggunakan Fluida Kerja Refrigeran R-718 pada Tekanan Vakum 45 cmHg, 40 cmHg, dan 35 cmHg dengan Variasi Sudut Kolektor 200 dan 300

    OpenAIRE

    Sembiring, Immanuel Richart P.

    2015-01-01

    Solar energy is one of renewable energy resource potential. By using an instrument called the Solar Water Heater, water heating can be carried out continuously without spending huge costs. At this equipment, solar energy is collected and then transferred to the water, usually in natural circulation mode. The main drawback of solar water heater is the process of heat transfer is low. Using refrigerant as a secondary fluid to transfer heat is the best solution. The purpose of thi...

  19. Pengujian Pemanas Air Tenaga Surya Sistem Pipa Panas Menggunakan Fluida Kerja Refrigeran R-718 pada Tekanan Vakum 45 cmHg, 40 cmHg dan 35 cmHg dengan Variasi Kemiringan Kolektor 400 dan 500.

    OpenAIRE

    Pardede, Ardiko

    2015-01-01

    This research is part of a large research on solar energy utilization as renewable energy for heating water. The background of this research is the great needs that will use hot water especially in hotel, hospitals and restaurant. An instrument water heater solar tested wearing hot pipe system, where water heating system with the principle of lasting termosifon. A solar water heater this size 1,16 m x 0,80 m x 0,21 m divided into 3 of the collector with a measure of 1 m x 0,2 m...

  20. Evaluation of Somatic Embryogenesis Ability in Robusta Coffee (Coffea canephora Pierre

    Directory of Open Access Journals (Sweden)

    Priyono Priyono

    2010-08-01

    Full Text Available Embriogenesis somatik diharapkan sebagai metode perbanyakan tanaman yang sangat efektif pada kopi. Evaluasi dua jenis proses embriogenesis somatik, yaitu proses langsung dan tidak langsung akan bermanfaat untuk menggambarkan kemampuan proliferasi sel. Penelitian untuk mengevaluasi embriogenesis somatik kopi Robusta (Coffea canephora yang mempunyai tingkat keragaman genetik tinggi telah dilakukan di Nestlé R&D Centre Tours, Perancis. Bahan tanam menggunakan kopi Robusta koleksi Nestle Perancis dan tiga klon koleksi Pusat Penelitian Kopi dan Kakao Indonesia (Puslitkoka. Tiga aspek, yaitu proses embriogenesis, keragaman embriogenesis dan kemantapan embriogenesis dievaluasi dalam penelitian ini. Hasil penelitian menunjukkan bahwa baik embriogenesis somatik langsung maupun tidak langsung dapat diamati. Penelitian ini menunjukkan bahwa kedua proses embriogenesis somatik tersebut merupakan dua mekanisme yang berbeda. Dalam penelitian ini ditunjukkan bahwa kemampuan embriognesis somatik tergantung pada genotipe, baik antar maupun di dalam kelompok genetik kopi Robusta, yaitu Congolese,Guinean dan Conillon. Lebih lanjut diketahui bahwa kedua proses embriogenesis somatik tersebut stabil terhadap indukan sebagai sumber eksplan. Kemampuan embriogenesis somatik tidak langsung ketiga klon Puslitkoka (BP409, BP961 dan Q121 sangat beragam, sehingga memberikan harapan adanya pola segregasi yang baik berdasarkan kemampuan embriogenesis somatik tidak langsung pada populasi yang dibuat dari silangan klon tersebut.Key words: Coffea canephora, somatic embryogenesis, variability, stability, genotype.

  1. EVALUASI PENGGUNAAN METILEN BIRU SEBAGAI MEDIATOR ELEKTRON PADA MICROBIAL FUEL CELL DENGAN BIOKATALIS ACETOBACTER ACETI

    Directory of Open Access Journals (Sweden)

    Dani Permana

    2013-05-01

    Full Text Available Microbial fuel cell (MFC merupakan salah satu teknologi sel bahan bakar alternatif yang dapat diperbarui. MFC memanfaatkan proses oksidasi senyawa kimia oleh biokatalis untuk menghasilkan energi listrik daya rendah. Tujuan dari penelitian ini adalah mengetahui kinerja MFC dengan dan tanpa mediator elektron metilen biru (MB menggunakan biokatalis Acetobacter aceti dan substrat glukosa agar diperoleh energi listrik. Metode yang dilakukan adalah peremajaan kultur A. aceti, persiapan inokulum, persiapan reaktor MFC, persiapan media MFC dengan substrat glukosa 2% dengan dan tanpa mediator MB, pencuplikan secara periodik, penentuan kurva pertumbuhan, arus, potensial, kerapatan daya, energi, kadar glukosa dan tingkat keasaman (pH. Hasil penelitian menunjukkan bahwa MFC dengan mediator menghasilkan kuat arus sebesar 0,040 mA, potensial 878 mV, kerapatan daya 0,395 mW/cm2, energi maksimum 3,685 kJ, pemanfaatan glukosa 93,02% dan pH akhir 3,33, sedangkan MFC tanpa mediator menghasilkan kuat arus 0,035 mA, potensial 773 mV, kerapatan daya 0,290 mW/cm2, energi maksimum 2,434 kJ, pemanfaatan glukosa 90,16% dan pH akhir 3,24. Perolehan kerapatan daya pada kedua jenis MFC masih tergolong kecil dan tidak berbeda secara signifikan. Berdasarkan hasil penelitian dapat disimpulkan bahwa penggunaan mediator MB hanya berpengaruh terhadap perolehan potensial pada MFC dengan kondisi perlakuan yang diterapkan dalam penelitian ini.

  2. PhaC Synthases and PHA Depolymerases: The Enzymes that Produce and Degrade Plastic

    Directory of Open Access Journals (Sweden)

    Amro A. Amara

    2011-12-01

    Full Text Available PHAs are a group of intracellular biodegradable polymer produced by (most bacteria under unbalanced growth conditions. A series of enzymes are involved in different PHAs synthesis, however PhaC synthases are responsible for the polymerization step. PHAs are accumulated in bacterial cells from soluble to insoluble form as storage materials inside the inclusion bodies during unbalanced nutrition or to save organisms from reduces equivalents. PHAs are converted again to soluble components by another pathways and enzymes for the degradation process. PHAs depolymerases are the responsible enzymes. This review is designed to give the non-specialists a condense background about PHAs especially for researcher and students in medicinal and pharmaceutical filled. ABSTRAK: PHAs (polyhydroxyalkanoate merupakan sekumpulan polimer terbiodegradasikan intrasel yang dihasilkan oleh (kebanyakan bakteria di bawah keadaan tumbesaran tak seimbang. Satu rangkaian enzim terlibat dalam sistesis PHAs yang berbeza, namun sintesis PhaC bertanggungjawab dalam peringkat pempolimeran. PHAs dikumpulkan dalam sel bakteria dari bentuk larut dan tak larut sebagai bahan simpan di dalam jasad terangkum semasa nutrisi tak seimbang atau untuk menyelamatkan organisma daripada pengurangan tak keseimbangan. PHAs ditukarkan sekali lagi kepada komponen larut dengan cara lain dan enzim lain untuk proses degradasi. PHAs depoly-merases (enzim yang memangkin penguraian makro molekul kepada molekul yang lebih mudah merupakan enzim yang bertanggunjawab. Kajian semula ini direka untuk memberi mereka yang bukan pakar, satu ringkasan tentang PHAs terutamanya penyelidik dan penuntut dalam bidang peubatan dan farmaseutikal.

  3. Pra Rancangan Pabrik Pembuatan Compressed Natural Gas (CNG) Dari Biogas Hasil Fermentasi Thermofilik Limbah Cair Kelapa Sawit Dengan Kapasitas 45 Ton Tbs /Jam

    OpenAIRE

    Siregar, Refina Sari

    2011-01-01

    Gas alam terkompresi (Compressed natural gas, CNG) adalah alternatif bahan bakar selain bensin atau solar. Di Indonesia, CNG dikenal sebagai bahan bakar gas (BBG). Bahan bakar ini dianggap lebih bersih bila dibandingkan dengan dua bahan bakar minyak karena emisi gas buangnya yang ramah lingkungan. CNG dibuat dengan melakukan kompresi metana (CH4). Komposisi CNG yang terdiri dari metana (CH4) ini dapat diperoleh dari biogas. Biogas dapat dibuat dari limbah organik, salah satunya limbah cair ke...

  4. Pra Rancangan Pabrik Pembuatan Compressed Natural Gas (CNG) Dari Biogas Hasil Fermentasi Thermofilik Limbah Cair Kelapa Sawit Dengan Kapasitas 60 Ton TBS /Jam

    OpenAIRE

    Senafati

    2011-01-01

    Gas alam terkompresi (Compressed natural gas, CNG) adalah alternatif bahan bakar selain bensin atau solar. Di Indonesia, CNG dikenal sebagai bahan bakar gas (BBG). Bahan bakar ini dianggap lebih bersih bila dibandingkan dengan dua bahan bakar minyak karena emisi gas buangnya yang ramah lingkungan. CNG dibuat dengan melakukan kompresi metana (CH4). Komposisi CNG yang terdiri dari metana (CH4) ini dapat diperoleh dari biogas. Biogas dapat dibuat dari limbah organik, salah satunya limbah cair ke...

  5. High Discharge Rate Electrodeposited Zinc Electrode for Use in Alkaline Microbattery

    Directory of Open Access Journals (Sweden)

    A. L. Nor Hairin

    2012-01-01

    Full Text Available High discharge rate zinc electrode is prepared from electrodeposition process. The electrolytic bath consists of zinc chloride as the metal source and ammonium chloride as the supporting electrolyte. The concentration of the supporting electrolyte is varied from zero until 4 M, while the concentration of zinc chloride is fixed at 2 M. The aim is to produce a porous zinc coating with an enhanced and intimate interfacial area per unit volume. These characteristics shall contribute towards reduced ohmic losses, improved active material utilization, and subsequently producing high rate capacity electrochemical cell. Nitrogen physisorption at 77 K is used to measure the BET surface area and pore volume density of the zinc electrodeposits. The electrodeposited zinc electrodes are then fabricated into alkaline zinc-air microbattery measuring 1 cm2 area x ca. 305 µm thick. The use of inorganic MCM-41 membrane separator enables the fabrication of a compact cell design. The quality of the electrodeposited zinc electrodes is gauged directly from the electrochemical performance of zinc-air cell. Zinc electrodeposits prepared from electrolytic bath of 2 M NH4Cl produces the highest discharge capacity.ABSTRAK: Elektrod zink dengan kadar discas tinggi telah dihasilkan dengan proses saduran elektrokimia. Takungan elektrolit terdiri daripada zink klorida sebagai sumber logam dan ammonium klorida sebagai elektrolit sokongan. Kepekatan elektrolit sokongan diubah daripada sifar hingga 4 M, sementara kepekatan zink klorida ditetapkan pada 2 M. Ini bertujuan untuk mendapatkan saduran zink yang poros dengan luas permukaan per unit isipadu dan sentuhan antaramuka yang dipertingkatkan. Ciri-ciri ini akan menyumbang terhadap pengurangan kehilangan disebabkan kerintangan, pertambahan dalam gunapakai bahan aktif dan akhirnya menghasilkan sel elektrokimia berprestasi tinggi. Physisorpsi nitrogen pada 77 K telah digunakan untuk mengukur luas permukaan BET dan isipadu liang

  6. POTENSI Chromolaena odorata dan Tithonia diversifolia SEBAGAI SUMBER NUTRISI BAGI TANAMAN BERDASARKAN KECEPATAN DEKOMPOSISINYA (Studi Kasus di Desa Sobokerto Boyolali Jawa Tengah)

    OpenAIRE

    - Pardono

    2011-01-01

    Penggunaan pupuk anorganik dalam sistem peningkatan produksi tanaman menimbulkan masalah antara lain menipisnya bahan baku pembuatan pupuk. Upaya mencari alternatif bahan baku yang bersifat terbarukan mendesak dilakukan antara lain penggunaan pupuk organik. Bahan alami berupa tumbuhan seperti Chromolaena odorata dan Tithonia diversifolia sudah mulai dilakukan peneliti namun informasinya masih terbatas. Pengayaan informasi terhadap tumbuhan tersebut diperlukan agar diperoleh ketuntasan sehingg...

  7. Analisis Mitigasi Risiko pada Supply Chain Pembuatan Sterilizier

    OpenAIRE

    Silalahi, Ezrilona

    2016-01-01

    Penanganan risiko supply chain dalam meminimalisasi waktu dan kinerja dapat dilakukan dengan pendekatan komprehensif untuk menangani semua kejadian yang menimbulkan kerugian atau disebut dengan manajemen risiko. PT. Pancakarsa Bangun Reksa merupakan perusahaan produsen sterilizer yang mengalami berbagai risiko dalam kegiatan supply chain, seperti keterlambatan tibanya bahan baku, salah tafsir pemesanan bahan baku, perjanjian terhadap supplier yang otoriter, kondisi atau jumlah bahan baku yang...

  8. PROFIL HISTOLOGIS SERABUT KOLAGEN PADA KULIT KAMBING BLIGON YANG DIRENDAM DALAM LARUTAN ASAM DAN BASA LEMAH PADA KONSENTRASI BERBEDA

    OpenAIRE

    Said, Muhammad Irfan; Triatmojo, Suharjono; Erwanto, Yuny; Fudholi, Achmad

    2013-01-01

    Larutan asam dan basa kuat sebagai bahan perendam bahan baku kulit telah banyak diterapkan dalam industri pembuatan gelatin komersial. Perendaman bahan baku kulit dalam larutan asam dan basa dimanfaatkan sebagai perlakuan awal (pretreatment) dalam meningkatkan kuantitas maupun memperbaiki kualitas produk gelatin. Kulit ternak tersusun sebagian besar atas serabut kolagen (Sarkar, 1995). Proses hidrolisis serabut kolagen secara parsial selanjutnya akan menghasilkan produk gelatin (Kolodziej...

  9. Pengaruh Peningkatan Jumlah Abu Kulit Buah Kelapa Sebagai Katalis Dalam Pembuatan Metil Ester Dengan Bahan Baku Minyak Sawit Mentah (Crude Palm Oil)

    OpenAIRE

    Sihotang, Allen Rianto

    2014-01-01

    Methyl esters are generally synthesized through transesterification with mild alcohol to using conventional alkaline catalysts are NaOH, KOH, and others. So by using coconut husk ash as a catalyst can be an alternative to conventional catalysts are very expensive. In the manufacture of methyl ester in this study is using two-stage reaction such as, esterification reaction with a strong acid catalyst (H2SO4) to reduce free fatty acids and transesterification with methanol which variated the am...

  10. Analisis persediaan bahan baku sayur Olahan pada pt. Alam agro abadi Menggunakan model economic order Quantity (eoq) dengan tingkat Produksi terbatas

    OpenAIRE

    Tarigan, Eva Kristina

    2015-01-01

    Inventories are materials stored by a company to meet demand of customers. Problems commonly encountered in inventory control is to determine how many order quantity of raw materials should be done so the production company run smoothly so that the company can improve the efficiency of production. The purpose of this study was to determine the optimal order quantity, to determine the maximum inventory level, and minimum total inventory cost of each raw material processed vegeta...

  11. PENINGKATAN KANDUNGAN MINYAK ATSIRI TEMULAWAK SEBAGAI BAHAN BAKU OBAT Pengujian Peningkatan Kandungan Minyak Atsiri Temulawak pada Berbagai Ekotipe dan Kondisi Intensitas Cahaya Matahari yang Berbeda

    Directory of Open Access Journals (Sweden)

    Kasiran Kasiran

    2012-11-01

    Full Text Available Background: One of the important substance in the Javanese turmeric was essential oil (atsiri. The essential oil of Javanese turmeric was very useful for human health and medical industries. Efforts to increase the content of essential oil in Javanese turmeric tuber will give and increase usage of Javanese turmeric for medical industries. Objective: The research is to test the level of essential oil of Javanese turmeric in the several ecotypes which cultivate in the different condition of sunshine intensity. Methods: The analysis of essential oil was held by using 10 g of Javanese turmeric sample powder through destilation method. Results: The research show that the different of ecotype of Javanese turmeric will give significant effects on the essential oli content in the tubers. Whereas, the interaction between sunshine intensity and ecotype including interaction of both factors did not have significant effects. The highes essential oil content was in the ecotype from Sleman (T9 that was 6.46% and ecotype Manna (T3 that was 6.37%. Whereas, the lowest essential oil content was in the ecotype from Bawang Village, Kulon Progo (T13, that was 2.96%. Therefore, the ecotype selection of Javanese turmeric wich will be cultivated was important in order to get high essential oil content. Key words: Essential oli, javanese turmeric, ecotype, sunshine intensity

  12. Kajian Bentuk Pengolahan dan Analisis Finansial Buah Api api (Avicennia officinalis L.) Sebagai Bahan Makanan dan Minuman di Kabupaten Deli Serdang

    OpenAIRE

    Sianturi, Gustinaria

    2013-01-01

    Penelitian ini bertujuan untuk mengidentifikasi bentuk pengolahan, tingkat kelayakan nilai finansial, dan strategi pengembangan usaha pengolahan buah api-api (Avicennia officinalis L.) di Dusun Paluh Merbau, Desa Tanjung Rejo, Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang. Metode analisis yang digunakan adalah analisis deskriptif, analisis finansial, dan analisis strategi pengembangan usaha dengan menggunakan analisis SWOT. Hasil penelitian menunjukkan bahwa produk olahan buah api-...

  13. KAJIAN TERHADAP PROSPEK PENGEMBANGAN BAHAN BIOAKTIF BUAH MAHKOTA DEWA (P. Macrocarpa SEBAGAI KANDIDAT NEW CHEMICAL ENTITY (NCE UNTUK PENGOBATAN KANKER (SITOSTATIKA

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    Vivi Lisdawati

    2012-11-01

    Full Text Available Abstract. In the last few years there are tendency for cancer study to develop in discovery of new chemical entity (NCE for new drugs. The needed of NCE based on reality that cancer therapy reaches a resistant level very fast. By developing NCE, multiply cancer drugs can be used at one therapy and be implemented as a solution to inhibit a resistant level and very useful in recovery time. Natural products are the most important sources of NCE and could be used from plants, animals or minerals. Most of the natural products used in Indonesia are recognized from plants. Plants secondary metabolites show promise for cancer chemoprevention, which has been defined as the use of non cytotoxic nutrient or pharmacological agents to enhance intrinsic physiological mechanism that protect the organism against mutant clones of malignant cells. The study of plants secondary metabolites is nowadays moved from improvement of the empiric activity to meet the relationship between the structures of chemical compounds to its pharmacology activities. Development of study on plants in Indonesia is also pointed on discovery of NCE for new drugs of cancer and the cellular cytotoxic mechanism of the biological activity. Extracts from the fruit of P. macrocarpa is one of the sources for NCE of cancer drug in Indonesia. Some isolates already isolated from the extracts, i.e. lignan compound Ci9H2o06: 5-[4(4-Methoxy-phenyl-tetrahydrofurof3,4-cJfuran-l-yl]-benzene-1,2,3-triol and benzophenon compound: 4', 6-dihiroksi-4-metoksibenzofenon-2-0-glukoside. Using chemotaxonomy Dahlgren and Conqruist system approached indicate that these compounds have anti proliferation and pro apoptotic as their cytotoxic activities. The pharmacology activities from the fruit extracts also have been studied. For cytotoxic activities, the fruit extracts showed ICSo values from 5 to 7.71. jug/ml for leukemia LI 210 cell line; and IC50 values 196.74 jug/ml for HeLa cell line. The extracts also showed antioxidant activity with IC50 values 103.75 g/ml (most active level. Antihistamine activity showed 6.25; 12.5; 25; 50 and 100 %b/v doses could decrease the histamine control significantly (p <0.05. The review article is needed to support a development and improvement of the fruit extracts of P. macrocarpa to be considered as the most important sources of NCE for new cancer drug.   Key words: P. macrocarpa, new chemical entity, cytotoxic

  14. Studi Eksperimental Dan Analisa Respon Mekanik Helmet Sepeda Dari Bahan Komposit Busa Polimer Diperkuat Serat Tkks Akibat Beban Impak Jatuh Bebas

    OpenAIRE

    Sukardi

    2016-01-01

    This research is for identified the stress, strain and energy impact than can be absorbed by the polymeric foam bike helm. The free-fall impact test is tested by using multifunction free-fall tester. The Helm is placed in the test rig which height can be adjusted. To identify the impact time that occur in the test, tester is using 8 inductive proximity sensors. Helm will fall and crash the anvil. The force exerted will be measured by the load cell that under the anvil. The analog signal data ...

  15. PEMANFAATAN BAHAN TUMBUHAN SEBAGAI BIOKATALISATOR DALAM PRODUKSI MINYAK SAWIT KAYA ASAM LEMAK OMEGA-3 [Using of Plant Biocatalisator for Omega-3 PUFA -Rich Palm Oil Production

    Directory of Open Access Journals (Sweden)

    Jenny Elisabeth1

    2002-08-01

    Full Text Available Incorporaton of omega-3 polyunsaturated fatty acids (n-3 PUFA into red palm oil was investigated by using acidolysis process. Rice bran and Carica papaya latex (CPL were used as biocatalyst. Acidolysis between red palm oil and n-3 PUFA concentrate in free fatty acid form was conducted without solvent, with weight ratio of n-3 PUFA concentrate to palm oil being 1:1. The n-3 PUFA concentrate was prepared from tuna oil by crystallization method. The study has demonstrated that rice bran lipase showed higher activity to incorporate n-3 PUFA into red palm oil than CPL. The extent of EPA (eicosapentaenoic acid, C20:5 and DHA (docosahexaeboic acid, C22:6 incorporation were 3.4% and 12.7% with the rice bran lipase, and 1.7% and 3.2% with the CPL. Furthermore, rice bran from several varities of paddy (Mamberamo, IR-64, Merah Munte , and Cirata produced equal incorporation of EPA and DHA into red palm oil. Rice bran from germinated seed of paddy did not increase the n-3 PUFA incorporation into red palm oil. It means that rice bran in its natural form could be used and act as immobilized lipase. It is easier to remove the rice bran from reaction mixture and reuse the bran for 14 times without decreasing its enzyme activity

  16. Respons Pertumbuhan Dan Produksi Tanaman Jagung (Zea Mays. L) Terhadap Aplikasi Pupuk Organik Dari Limbah Pertanian Yang Diperkaya Dengan Bahan Peningkat Kualitas Kompos

    OpenAIRE

    Siregar, M. Rizky

    2010-01-01

    M. Rizky Siregar: growth and production of corn (Zea Mays. L) on the organic fertilizer application from agricultural waste enriched with compost quality enhancing substances, guided by HAPSOH and YAYA HASANAH. The objective of the research was to study the growth and production of corn (Zea Mays L.) on the organic fertilizer application from agricultural waste enriched with compost quality enhancing substances. The research was carried out at Research Field of Agricultural Faculty (± 25 m...

  17. Aktivitas Antioksidan Komponen Minyak Atsiri Bahan Segar Dan Ekstrak Etanol Dari Ampas Rimpang Jahe Gajah Serta Aplikasi Terhadap Daging Ikan Nila

    OpenAIRE

    Tantono, Edy

    2013-01-01

    Had been isolated and determination constituent of fresh ginger essential oil by Stahl distillation and GC-MS analysis. The dominant constituents of essential oil such as geranial (13,97%), 1,8-cineole (12,6%), neral (10,94%), camphene (8,63%), zingiberene (6,17%). Furthermore the ethanol extract of dried elephant ginger residue was extracted with the soxhletation method and phytochemical screening showed the flavonoid compound. After that, essential oil and extracts were determined antioxida...

  18. Desain Struktur dan Pembuatan Parking Bumper Dari Bahan Polymeric Foam Diperkuat Serat Tandan Kosong Kelapa Sawit (TKKS) Terhadap Beban Impak dan Tekan

    OpenAIRE

    Ali, Syurkarni

    2012-01-01

    The palm oil industry development is rapidly increasing. One of palm oil industry waste is oil palm empty fruit bunch (OPEFB). OPEFB waste can be processed in to fibers. OPEFB fibers are potential to be made as engineering materials. The aims of the research were to obtain the parking bumper design which was able to obtain the static and dynamic load impact, to obtain the effective parking bumper product manufacturing, to find the best material composition for parking bumper, and to examine t...

  19. REDISTILAT ASAP CAIR CANGKANG KELAPA SAWIT SEBAGAI BAHAN PENGAWET BAKSO SAPI [Redistilled Liquid Smoke of Oil-Palm Shells as a Preservative for Beef Meatballs

    OpenAIRE

    Suminar Setiati Achmadi; Harsi Dewantari Kusumaningrum1,2)*; Ihsan Anggara

    2015-01-01

    Liquid smoke has been used to extend the shelf life of food. However, its composition varies considerably depending on the type of raw materials used and preparation precedure. Liquid smoke derived from palm oil shell is potential due to the abundance of its byproduct sources in the palm oil industry. This study thus aims to prepare the best fraction of liquid smoke that can extend the shelf life of beef meatballs at room temperature. The raw liquid smoke was redistilled at 80, 90, and 100°C ...

  20. PENGARUH KHLORHEKSIDIN DIGLUKONAT 2% DAN GLISERIN SEBAGAI BAHAN PENCAMPUR KALSIUM HIDROKSIDA TERHADAP SISA KALSIUM HIDROKSIDA PADA SEPERTIGA APIKAL DINDING SALURAN AKAR GIGI

    Directory of Open Access Journals (Sweden)

    Emmawati Prawitasari, Diatri Nari Ratih, dan Widowati Siswomihardjo

    2013-12-01

    Full Text Available The most widely used intracanal medicament is calcium hydroxide (Ca(OH2. However, the residue ofCa(OH2 in the root canal must be removed prior to obturation. The residue of Ca(OH2 in the root canalwalls would result in apical leakage. This is due to the unstable dimension of Ca(OH2, reduced flowand working time of the sealers, and decreased adhesion of sealers and gutta percha to root canal walls.This study aimed to determine the effect of Ca(OH2 vehicles and agitation irrigation techniques on theresidue of Ca(OH2 in the apical third of the root canal walls.Twelve extracted mandibular first premolars were used in this study. The crowns of the teethwere removed at the apical part of cemento enamel junction with a length of 14 mm from the apical.The canals were prepared with a Step Back technique to obtain Master Apical File ( MAF # 40. Thespecimens were randomly devided into groups I, the pastes of Ca(OH2+chlorhexidine digluconate 2%.In groups II, the pastes of Ca (OH2+ glycerin were applied. Each specimen of the study was sectionedin the sagittal direction, then was photographed under a stereo microscope at 120x magnification. Thepercentages of Ca(OH2 residue were calculated using UTHSCSA image tool 3 software. Data wereanalyzed using T-test at 95% level of significance.The results revealed that the group of Ca(OH2+ chlorhexidine digluconate 2% paste showed thelowest number of residual Ca(OH2.The conclusion of this study was that the vehicles affected the totalresidue of Ca(OH2.