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The Cu(II)-doped TiO2 and Cu(II)-doped TiO2 /Bi2O3 compound have been synthesized using the sol gel method with titanium tetraisopropoxide (TTIP) as the TiO2 precursor and Cu(NO3)2.3H2O as the Cu(II) dopant was carried out at various concentration of 0.075%; 0.250% and 1.000%, as well as Bi(NO3)3.5H2O as a Bi2O3 precursor. Based on characterization using the DRSUV-Vis spectrophotometric method with data analysis using a tauch plot, it is known that the band gap energy of Cu(II)-doped TiO2 is 2.89 eV; 2.72 eV; 2.54 eV. The addition of Bi2O3 to Cu(II)-doped TiO2 (1%) causes a decrease in the band gap from 2.54 to 2.18 eV which is equivalent to a wavelength of 567 nm. IR spectrophotometry spectra analysis shows a shift in Ti-O absorption towards smaller wave numbers. Characterization by the XRD method shows that 1% Cu(II)-doped TiO2 /Bi2O3 has an anatase phase with a crystallite size of 24 nm. Photocatalysis activity test on the degradation of rhodamine B solution at a concentration of 10 ppm, under visible light illumination for 180 minutes was able to degrade up to 85.85%.

A thin layer of TiO2 doped with Cobalt (II) immobilized on the surface of a titanium foil (Co(II)-TiO2/Ti) has been synthesized from a titanium foil (Ti) as a TiO2 precursor as well as a thin layer matrix and CoCl2.6H2O as a source of Co(II) on variations of 0.5%, 1% and 2%. Synthesis was carried out by anodizing method using ethylene glycol electrolyte solution with the addition of NH4F and followed by calcination treatment at 450ºC for 3 hours. The obtained Co(II)-TiO2 /Ti thin films were characterized using Fourier-transform infrared (FT-IR) spectroscopy, Diffuse Reflectance UV-Vis (DRSUV-Vis) and X-ray diffraction (XRD) methods. Doping Co(II) variations of 0.5%, 1.0% dan 2.0% in the TiO2 structure causes a shift in the vibrational absorption peak of Ti-O (460.99 cm-1) towards a smaller wave number of 459.06 cm-1 respectively ; 453.27 cm-1 and 451.34 cm-1. This is supported by the results of the DRUV-Vis analysis using the tauc plot method, which shows a decrease in the band gap energy of TiO2 (3.24 eV) to 2.57 eV, 2.47 eV and 2.28 eV. Based on XRD analysis, it is known that the Co(II)-TiO2/Ti photocatalyst has anatase phase with a crystal size of 15-17 nm. The photocatalytic activity of Co(II)-TiO2/Ti under visible light illumination was evaluated for inhibition of Escherichia coli bacterial growth. Co(II)-TiO2/Ti photocatalyst at 2.0% Co(II) concentration had the best inhibition (43.2%) compared to 0.5% and 1.0% Co(II) concentrations, respectively 18% inhibition and 27%.

Nanopartikel yang dihasilkan melalui metode Green biosintesis berpotensi untuk diterapkan pada dunis medis dan farmasi. Penelitian ini menggunakan senyawa metabolit yang dihasilkan isolat Bacillus spp untuk mereduksi zink sulfat menjadi nanopartikel zink oksida. Berdasarkan hasil pengukuran spetrofotometri UV-Vis panjang gelombang optimum koloid nanopartikel yang dihasilkan dari proses Green biosintesis isolate BES 6A dengan penambahan zink sulfat sebanyak 0,2 g/ml yaitu pada 366 nm. Adapun gugus fungsi Zn-O berdasarkan pengukuran FTIR terbaca pada panjang puncak gelombang 438 dan 530 cm-1. Bentuk kristal yang dihasilkan yaitu heksagonal dengan puncak 2Ɵ yang terdeteksi yaitu 31,82°; 34,33°; 36,49°; 47,56°; 57,16°; 63,20°; 66,76°; dan 68,99° yang menandakan kehadiran nanopartikel zink oksida berdasarkan referensi ICDD 00-001-1136. Ukuran nanopartikel yang dihasilkan yaitu 30 – 47 nm.

Rapid urban development and increasing human activities in the city can affect the decline in the Vegetation Index in Ambon City. The research aims to analyze the vegetation index using sentinel-2 satellite image data with the Normalized Difference Vegetation Index (NDVI) method based on Google Earth Engine (GEE) in Ambon City in 2023. This research uses Sentinel-2 Satellite Image data which is analyzed using Google Earth Engine with the Normalized Difference Vegetation Index (NDVI) method. The results showed that the vegetation index value in Ambon City in 2023 was the lowest value of -0.672381 and the highest value of 0.949297. The vegetation index value is then divided into four classes, namely No Vegetation which has an area of 4,448.99 ha or 13.67%, Low Vegetation areas have an area of 1,611.06 ha or 4.95%, Moderate Vegetation areas have an area of 2,895.12 ha or 8.89% and High Vegetation areas have an area of 23,597.35 ha or 72.49%. Analysis of the vegetation index in Ambon City is very important to maintain environmental balance and a healthy and sustainable environment.

Bencana banjir terjadi hampir setiap tahun di Kota Ambon dan mengingat besarnya dampak dan jumlah korban yang dapat ditimbulkan maka pemetaan daerah rawan banjir merupakan dasar untuk memberikan informasi tentang strategi mitigasi risiko banjir. Penelitian ini bertujuan untuk menganalisis kawasan rawan banjir dan juga memprediksi kawasan permukiman yang berada di kawasan rawan banjir di Kota Ambon. Penelitian ini menggunakan metode Multicriteria Evaluation (MCE) bagi pengambil keputusan dalam menentukan bobot dan metode yang sesuai serta menggunakan Weighted Linear Combination (WLC) dalam menganalisis daerah rawan banjir. Hasil penelitian menunjukkan bahwa Kecamatan Teluk Ambon memiliki wilayah terluas pada setiap kelas kerawanan banjir di Kota Ambon dibandingkan dengan kecamatan lainnya, hal ini dikarenakan kecamatan tersebut merupakan yang terbesar di Kota Ambon. Sedangkan luas lahan pemukiman yang tersebar pada kawasan kelas kerawanan tinggi memiliki persentase luas paling besar yaitu 2.222,06 ha. Sebaran permukiman pada kelas kerawanan sedang seluas 2.214,67 ha yang tersebar di lima kecamatan di Kota Ambon. Sedangkan kawasan terbangun yang berada pada tingkat kerawanan sedang adalah 0,39 ha. Salah satu bentuk antisipasi dan mitigasi bencana banjir adalah dengan memperkirakan seberapa luas lahan terbangun pada kawasan rawan banjir untuk meminimalkan kerugian, baik korban jiwa maupun kerusakan fisik

Red Mud is a term used for residues or waste materials from bauxite refining. One of the main compositions of red mud is Fe2O3. This study aims to obtain the optimum extraction of Fe2O3 conditions or hematite by using APDC ligands and knowing the characteristics of Fe2O3 generated. In this study, Fe2O3 extraction begins to determine the optimum pH and ligand concentration. The results of determining the optimum conditions showed pH 1 and ligand concentration of 0.5 M. Fe2O3 characteristics can be resolve through the characterization of Fourier Transformed Infra Red (FTIR), X-ray Diffraction (XRD) and X-ray Fluorescence (XRF). The results of FTIR characterization showed the stretching vibration of Fe-O Fe2O3 phase (570.50 cm-1 and 470.20 cm-1), XRD diffractogram showed the resulting crystal shape is rhombohedralsize is 27,08 nm, while the XRF characterization results showed the mass percent Fe2O3 before extraction is 42.48% and the mass percent Fe2O3 after extraction is 72.443%.

Legundi (Vitex trifolia L.) is a plant that contains essential oils. Legundi leaf essential oil has the potential as a more environmentally friendly rice lice repellent. The process of extracting essential oils from Legundi leaves uses the steam-water distillation method. The yield obtained from distillation is 0.10% with a bright yellow color, has a distinctive smell of Legundi oil with a specific gravity of 0.9065 gram/cm3. GC-MS search results showed that Legundi leaf essential oil contains 5 main components, namely 2-β-Pinene (16.18 %), trans-caryophyllene (13.75 %), β-Ocimene (11.16 %), Cyclohexanol (10.03%), and Eucalyptol (5.45%). Testing of repellent activity was carried out on rice lice with variations in volatile oil concentrations of 1%, 5%, 10%, and 20%. The results of the repellent test showed that the highest percentage occurred at a concentration of 20% (P4), which was 56.7%, with an application time of 120 hours (L5). Based on this, it can be said that the greater the concentration of the essential oil used, the higher the percentage of rejection of the population, this also indicates that Legundi leaf essential oil has lice repellent activity (Sitophilus oryzae).

Thin film of TiO2 modified Ni2+ cationic (Ni doped-TiO2) thin films were synthesized from titanium tetraisopropoxide (TTIP) and Ni(NO3)2.6H2O using the combined sol-gel and dip coating method followed by calcination at 500oC for an hour. This study aims to determine the concentration of Ni2+ and the optimum number of layers for application as self-cleaning. Frontier transform infrared (FTIR) spectrophotometric analysis observed a shift in the vibration absorption peak of Ti-O towards a smaller wave number as an indication that the Ni2+ cationic have incorporated in the TiO2matrix in forming Ni-TiO2. Based on the of x-ray diffraction (XRD) it is known that Ni-TiO2 has anatase crystalline phase with a crystallite size of 149.20 nm. Diffuse reflectance ultraviolet-visible (DRSUV-Vis) spectrophotometry showed a decrease in the bandgap energy (3.2 eV to 2.22 eV). Surface morphological by scanning electron microscopy (SEM) method showed that the addition of polyethylene glycol (PEG) resulted in a more homogeneous distribution of particles than thin films without PEG. The self-cleaning activity of Ni-TiO2 was tested for surface hydrophilic properties by measuring the contact angle of water and oil droplets under visible light illumination.

Pembudidaya ikan pada umumnya mengalami kesulitan dalam menyediakan pakan buatan (pellet) yang berkualitas karena kurangnya pengetahuan dan keterampilan dalam teknologi pengolahan dan pembuatan pakan alternatif. Disamping itu biaya yang dikeluarkan untuk pengadaan pakan relatif besar mencapai 70 – 80 % dari total biaya produksi. Namun penyediaan pakan sering menjadi kendala karena selain harganya yang semakin hari semakin mahal, juga kualitas pakan yang tersedia tidak selalu sesuai dengan kebutuhan nutrisi yang dibutuhkan oleh ikan. Pemberian pakan berkualitas pada ikan nila yang dibudidayakan secara intensif sangat berpengaruh terhadap pertumbuhan dan produktivitas yang dihasilkan. Semakin tinggi kualitas pakan maka produksi yang dihasilkan juga akan semakin meningkat. Salah satu teknologi yang dapat diterapkan untuk mengatasi hal tersebut adalah pembuatan pakan formulated diet alternatif dengan menggunakan bahan baku lokal. Metode yang digunakan dalam kegiatan ini adalah transfer ilmu pengetahuan yang disajikan dalam kegiatan sosialisasi berupa: 1) pengenalan jenis-jenis bahan pakan ikan alternatif yang bersumber dari daerah tersebut, (2) Penyusunan formulasi pakan buatan ikan nila, (3) pelatihan teknologi pembuatan pakan buatan (pellet) serta, 4) pemantauan dan pendampingan. Sosialisasi dilakukan dalam bentuk ceramah dan dilanjutkan dengan sesi tanya jawab. Hasil kegiatan peternak mengenal jenis-jenis pakan lokal yang dapat digunakan sebagai pakan ikan, mengetahui formula pakan dan teknologi pembuatan pakan buatan alternatif. Pengetahuan dan keterampilan yang telah dimiliki pembudidaya ikan diharapkan dapat mengatasi kesulitan pembudidaya ikan dalam menyediakan pakan sehingga produksi dan usaha budidaya ikan meningkat.

Titanium dioxide-reduced graphene oxide (TiO2-rGO) was synthesized by hydrothermal method using TiO2 powder and rGO precursor from graphite rod by modified Marcano Method. The obtained TiO2-rGO photocatalyst was characterized by X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR), and Diffuse reflectance UV (DRUV). Based on XRD diffractogram, it is known that TiO2 has an anatase crystal phase. In the FTIR spectrum, it was observed that there was an absorption peak at the wavenumber of 1630 cm-1 from the vibration (C=C) as an indication that the C atom was incorporated into the TiO2 structure. The incorporation of C atoms into the TiO2 structure to form TiO2-rGO causes the bandgap energy to decrease from 3.29 eV to 3.20 eV. The photocatalytic activity was tested against decolorization of methylene blue solution for 180 minutes under visible light illumination from a 50 watt LED lamp. Every 10 minutes, absorbance was measured using a UV-Vis spectrophotometer at a wavelength of 664 nm. TiO2-rGO photocatalyst has better photocatalytic activity with %D of 96.39% under UV light and 84.32% under visible light illumination, while TiO2 is only able to degrade 93.87% and 36.55%, respectively.

Perum Perumnas which was formed by the Central Government in providing housing for low-income groups of people, made a design with a uniform minimum standard, which in the end the house in a certain period of time will experience changes made by residents. Both the house and the perumnas environment will continue to experience changes every year, this is due to the increasing number of population and the alternation of residents in the perumnas. To find out what changes have occurred in Perumnas Helvetia, data processing and analysis is carried out descriptively and using cross tabulation (crosstab). The results of data processing and analysis show that the building area is the change most often carried out by the occupants of the house. For the area of land / land there is no change. The type of house also affects changes in building area, which means that where the building area changes, the type of house will also change. As for other perumnas environments, roads are the changes that have changed the most in perumnas, ranging from width to pavement.change in the residential enviroment, national housing

In this work, undoped and Fe-doped TiO2 immobilized on kaolinite surface was successfully synthesized by sol-gel method with various Fe concentrations (0.05, 0.125, and 0.25 wt%). The effects of Fe doping into TiO2 lattice were thoroughly investigated by a diffuse reflectance UV-visible (DRS) spectroscopy, Fourier Transform Infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). The optical band gap of undoped and Fe-doped TiO2/kaolinite is red shifted with respect to the incorporation of Fe3+ into the structure of TiO2 resulted band gap. The FTIR spectra shows a shift of peak at the wave number at 586 cm−1 and 774 cm−1 which is attribute of the Fe−O vibration as an indication of the formation of Fe-TiO2 bonds. Incorporation of Fe3+ cation into the TiO2 lattice replacing the Ti4+ ions, which induced a perturbation in anatase crystal structure, causes the change in the distance spacing of the crystal lattices dhkl(101) of 8.9632 to 7.9413. The enhanced photocatalytic performance was observed for Fe-doped TiO2/kaolinite compared with TiO2/kaolinite with respect to Escherichia coli growth inhibition in solution media under visible light irradiation. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Changes in land use/land cover (LULC) in watersheds of Ambon City are influenced by human activities, mostly driven by socio-economic factors. Changes in land use/land cover (LULC) in the watershed in the center of Ambon City have the potential to trigger land-use change which will have an impact on land degradation, water pollution, flooding, and erosion which will increase in the future. Therefore, the utilization and efficiency of land cover in the watershed area must be increased based on rational land cover planning. The objectives of this study were to analyze land cover changes in watersheds in Ambon City in 2012, 2017, and 2022 and predict land cover in 2031. This study used Cellular Automata Markov Chan (CA-MC) and six factors driving the development of settlements. The results showed that from 2012, 2017, and 2022, the land cover for settlements and open land in the watershed in Ambon City continued to increase, while the land cover for non-agricultural areas and agricultural areas decreased in the area. In 2031, residential land has an area of 1,863.34 ha; this is because the residential land cover will continue to increase along with population growth and high demand for land in watersheds.

Fotokatalis TiO2 terdoping Fe3+ telah disintesis menggunakan titanium tetraisopropoksida (TTIP) sebagai prekursor serta dopan Fe3+ dari Fe(NO3)3 dengan metode sol-gel. Fotokatalis TiO2 didoping menggunakan Fe3+ bertujuan untuk memperlebar serapan dari sinar Ultra Violet (UV) hingga sinar tampak pada berbagai variasi persentase Fe3+ 0,05%; 0,125%; 0,25% (b/v). karakterisasi fotokatalis dilakukan dengan metode spektrofotometri UV-Vis/DRS, FT-IR, XRD dan diuji aktivitasnya terhadap degradasi rhodamin B. Hasil pengukuran UV-Vis/DRS dari setiap variasi memberikan energi celah pita (Eg) masing-masing sebesar 1,33 eV, 2,11 eV, 2,53 eV. Spektra Infra merah (FT-IR) menunjukkan serapan Fe-O yang merupakan interaksi antara TiO2 dengan dopan Fe3+ dalam struktur TiO2. Hasil pengukuran x-ray difraction (XRD) Fe-TiO2 memberikan difragtogram pada 2θ 25,4773°, 37,9223°, 48,0159° mengindikasikan bahwa Fe3+ telah tersubsitusi kedalam struktur TiO2. Dopan Fe3+ yang telah tersubsitusi juga dapat dibuktikan dari penurunan ukuran rata-rata kristalit dan jarak antar kisi. Hasil Uji Aktivitas konsentrasi dopan Fe3+ 0,125% memiliki aktivitas tertinggi yaitu sebesar 25,605%. Hasil penelitian tersebut menunjukkan bahwa Fe-TiO2 memiliki potensi dalam mendegradasi rhodamin B menggunakan sinar tampak.

Secara umum kinerja karyawan memiliki beberapa faktor pendukung agar mendapatkan hasil maksimal. Pengaruh dari lingkungan kerja dan budaya kerja Islam dalam Perusahaan di lembaga keuangan asuransi jiwa menggunakan prinsip Islam dalam menjalankan kegiatan bisnis dan operasionalnya berpengaruh pada kinerja pegawai/karyawan. Tentunya dengan adanya hasil penelitian sesuai dengan judul diatas sudah seharusnya usaha faktor lingkungan kerja maupun budaya kerja islam dapat ditingkatkan sehingga kinerja karyawan menjadi lebih baik lagi. Hasil penelitian ini bertujuan untuk mendapatkan penjelasan dan mendeskripsikan apakah variable X1 yaitu lingkungan kerja serta variable X2 yaitu budaya kerja Islam terdapat pengaruh bagi kinerja karyawan. Selanjutnya, penulis menggunakan metode kuantitatif dengan mendeskripsikan hasil penelitian dengan responden merupakan karyawan Perusahaan yang telah mengisi dan melengkapi dokumen kuesioner penelitian yang telah ditetapkan sebelumnya sebagai instrumen penelitian. Peneliti juga menggunakan aplikasi software SPSS sebagai alat bantu perhitungan statitstik dari data yang telah dikumpulkan untuk mendukung dan mengolah data penelitian. Peneliti melakukan penelitian yang telah dijalankan bahwa hasil pengujian hipotesis antara variable lingkungan kerja sebagai X1, variable budaya kerja Islam sebagai X2 serta Variabel kinerja karyawan sebagai Y. Penelitian dilakukan untuk menunjukan apakah lingkungan kerja sebagai variable X1 berpengaruh terhadap variable Y yaitu kinerja karyawan, budaya kerja Islam sebagai variable X2 terhadap kinerja karyawan sebagai variabel Y serta Variabel X1 dan X2 masing-masing yaitu lingkungan kerja serta budaya kerja Islam berpengaruh pada variabel Y yang ditentukan sebagai kinerja karyawan secara bersamaan. Dalam penelitian ini disimpulkan (1) variabel X1 yang ditentukan sebagia lingkungan kerja mempunyai pengaruh positif signifikan kepada varibel Y (2) variable X2 yaitu budaya kerja Islam mempunyai pengaruh positif signifikan kepada variable Y, terakhir (3) variabel X1 sebagai lingkungan kerja serta budaya kerja Islam sebagai variable X2 secara bersamaan memiliki pengaruh yang positif signifikan kepada variabel Y.

Research on the antibacterial potency of fresh extract from leaves of Jamaican cherry (Muntingia calabura L.) in inhibiting the growth of Shigella dysenteriae had been conducted in the Microbiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University. The study aimed to determine the potential of fresh extract from Jamaican cherry leaves in inhibiting the growth of S. dysenteriae and to determine its Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) against S. dysenteriae. The results showed that the fresh extract of Jamaican cherry leaves was potent as an antimicrobial agent against pathogenic bacteria S. dysenteriae. It was shown through 12 - 14 mm diameter of inhibition zone which was classified as strong inhibition. The MIC was measured at 3.125% while MBC was undetermined. According to these findings, it can be concluded that the fresh extract from Jamaican cherry leaves was potent to inhibit the growth of S.dysentriae at 3.125% concentration, yet unable to kill it.

IPTEKS berbasis dosen dan masyarakat (IbDM) bertujuan untuk mengaplikasikan atau mendiseminasikan teknologi pakan buatan alternatif untuk pengembangan budidaya ikan gurame intensif dalam upaya meningkatkan produktivitas perikanan dan meningkatkan pengetahuan serta keterampilan petani ikan (masyarakat) di Kelurahan Limau Manis, Kecamatan Pauh, Kota Padang dalam bidang usaha budidaya ikan di Sumatra Barat. Di samping itu, juga diharapkan petani ikan di Sumatra Barat dapat melakukan pemeliharaan dengan teknik yang baik dan ramah lingkungan. Dengan demikian kegiatan IbDM ini juga diharapkan mampu menekan biaya operasional dalam budidaya ikan gurami intensif dan pada akhirnya dapat meningkatkan pendapatan para petani/ masyarakat Kelurahan Limau Manis melalui pengembangan usaha budidaya ikan yang berkelanjutan. Untuk mencapai hasil diseminasi teknologi yang optimal maka sasaran utama IbDM di Kecamatan Pauh ini adalah kelompok tani ikan dan para pembina/pemuka masyarakat Kelurahan Limau Manis yang diharapkan mampu memberikan motivasi kepada petani untuk mensosialisasikan metode pembuatan pakan formula alternatif untuk pengembangan budidaya ikan gurame secara intensif dan ramah lingkungan. Metode yang digunakan dalam kegiatan ini adalah (1) Penyuluhan (ceramah), dengan materi utama: (a) pengenalan berbagai jenis bahan baku (raw material) yang dapat digunakan untuk makanan ikan gurame, (b) memberikan pengetahuan tentang penyusunan formulasi pakan buatan dengan metode kuadrat, (c) memberikan pengetahuan tentang proses pembuatan makanan buatan (d) menambah pengetahuan masyarakat tentang cara menyimpan pelet yang baik agar lebih tahan lama dan (e) pemberian materi tentang pengujian mutu pakan, baik secara fisika, kimia dan biologis; dan (2) Peragaan pembuatan pakan buatan alternatif untuk budidaya ikan gurame. Dari hasil kegiatan IbDM ini didapatkan bahwa pengetahuan dan keterampilan kelompok tani Kelurahan Limau Manis Kecamatan Pauh, Padang sebelum dilaksanakan kegiatan IbDM ini masih sangat rendah. Namun demikian motivasi atau keinginan masyarakat kelompok tani mitra IbDM untuk melakukan usaha budidaya atau pemeliharaan ikan sangat besar. Hal ini terlihat dari keinginan masyarakat kelompok tani mitra IbDM untuk menguasai teknologi pembuatan pakan alternatif ikan gurame dari hasil limbah daun dan batang talas yang diproses menjadi tepung relatif cukup tinggi. Lebih jauh dari hasil kegiatan IbDM pada masyarakat ini dapat menambah pengetahuan dan keterampilan masyarakat dalam mencari pakan alternatif untuk pakan ikan gurame sehingga kegiatan budidaya dapat berjalan dengan baik di daerah mitra IbDM. Agar kegiatan budidaya berjalan dengan baik di daerah mitra IbDM perlu dilakukan kegiatan IbDM secara berkelanjutan tentang teknik pembuatan pelet ikan alternatif dan teknik pemeliharaan ikan yang efisien dan efektif. Di samping itu perlu dukungan dana atau pemberian kredit oleh pihak yang berwenang kepada masyarakat atau petani ikan untuk modal pengembangan usahanya.

Fabrication with graphite-modified GO/PPy composites have been studied from used batteries using the Hummers method. This research was performance in four steps: graphite powder preparation, GO synthesis, GO/PPy composite synthesis, and supercapacitor cell manufacturing. The results of the study were characterized using X-Ray Diffraction (XRD) to see the character of the diffraction patterns formed by carbon batteries used before and after calcination and Fourier Transform Infra-Red (FTIR) to identify compound functional groups and conduct initial tests in the form of voltage, capacitance and life cycle by measuring charge and discharge times. The graphite preparation stage is carried out by the calcination method at 900°C to produce graphite with an angle of 2θ which is 26° with reflection from (d002). FTIR data showed that GO/PPy composites showed a successful combination of characteristics similar to pure polypyrrole and GO which included a broad absorption band located at 3500-2300 cm-1 which was estimated to be stretching the amine from polypyrrole and O-H group in the GO layer and the emergence of peaks new in the absorption band with a wave number 909 cm-1 is the CN vibration of the polymerized pyrrole. Meanwhile, based on the LCR meter measurement results in the best supercapacitor cells in the sampel GO/PPy ratio (3:10) with voltage value of 74.1 mV; a capacitance value of 15.14 µF and the best charge and discharge times.

Kegiatan IPTEKS berbasis dosen & masyarakat (IbDM) ini dilakukan dengan tujuan untuk diseminasi teknologi budidaya ikan Nila Nirwana secara intensif dalam upaya meningkatkan produktivitas perikanan di Kelurahan Limau Manis, Kecamatan Pauh, Kota Padang dan meningkatkan pengetahuan serta keterampilan petani ikan (masyarakat) Kelurahan Koto Tangah dalam bidang usaha pemeliharaan ikan Nila Nirwana di Sumatera Barat, sehingga diharapkan mereka dapat melakukan pemeliharaan dengan cara/teknik yang baik dan ramah lingkungan. Selain itu kegiatan IbDM ini juga diharapakan mampu mengurangi biaya operasional dalam pemeliharaan ikan Nila Nirwana dan pada akhirnya dapat meningkatkan pendapatan para petani (masyarakat) Kelurahan Limau Manis melalui pengembangan usaha budidaya ikan yang berkelanjutan. Untuk mencapai hasil diseminasi teknologi yang optimal maka sasaran utama IbDM di Kecamatan Pauh ini adalah kelompok tani ikan dan para pembina/pemuka masyarakat Kelurahan Limau Manis yang diharapkan mampu memberikan motivasi kepada petani untuk mensosialisasikan metoda pembuatan pakan formula alternatif untuk pengembangan budidaya ikan Nila Nirwana secara intensif dan ramah lingkungan. Metoda yang digunakan dalam kegiatan ini adalah (1) Penyuluhan (ceramah), dengan materi utama : (a) memberikan pengetahuan tentang berbagai macam bahan baku yang dapat dimanfaatkan untuk makanan ikan, (b) memberikan pengetahuan tentang penyusunan formula/komposisi makanan buatan, (c) memberikan pengetahuan tentang proses pembuatan makanan buatan (d) menambah pengetahuan masyarakat tentang cara menyimpan pelet yang baik agar lebih tahan lama dan (e) pemberian materi tentang pengujian mutu pakan, baik secara fisika, kimia dan biologis; dan (2) Peragaan pembuatan pakan pelet alternatif untuk budidaya ikan Nila Nirwana secara intensif. Dari hasil kegiatan IbDM ini didapatkan bahwa pengetahuan dan keterampilan kelompok tani Kelurahan Limau Manis Kec. Pauh, Padang sebelum dilaksanakan kegiatan IbDM ini masih sangat rendah. Namun demikian motivasi atau keinginan masyarakat kelompok tani mitra IbDM untuk melakukan usaha budidaya atau pemeliharaan ikan sangat besar. Hal ini terlihat dari keinginan masyarakat kelompok tani mitra IbDM untuk menguasai teknologi pembuatan pakan ikan dari hasil limbah daun dan batang talas yang diproses menjadi tepung relatif cukup tinggi. Lebih jauh dari hasil kegiatan IbDM pada masyarakat ini dapat menambah pengetahuan dan keterampilan masyarakat dalam mencari pakan alternatif untuk pakan ikan sehingga kegiatan budidaya dapat berjalan dengan baik di daerah mitra IbDM. Agar kegiatan budidaya berjalan dengan baik di daerah mitra IbDM perlu dilakukan kegiatan IbDM secara berkelanjutan tentang teknik pembuatan pelet ikan alternatif dan teknik pemeliharaan ikan yang efisien dan efektif. Disamping itu perlu dukungan dana atau pemberian kredit oleh pihak yang berwenang kepada masyarakat atau petani ikan untuk modal pengembangan usahanya.

ABSTRACT Standard Operating Procedures (SOPs) of the Company on the work process the publishing group life insurance policies differ from one another. In essence, the service is done to maximize the Company's resources in place to provide maximum service to the policyholder. The process of publishing sharia group life insurance policy in this case includes the process at some Division or Section Unit of the Company. To be able to give good results and the determination of the application process flow of work must be agreed in advance by the Division or Section Unit linked by also considering processing time at the Division or Section Unit. To run the policy issuance process, then there is a relationship application of working procedures with the application system used in the issuance of life insurance policies. The application system used must be in accordance with the procedures for issuing the policy. In practice, the Company adjusted the integrated application system to follow the procedures for issuance of policy set by the company. This is certainly to reduce errors, say human error and improve the effectiveness and efficiency of the Company's operations. In determining the working procedures associated with other Unit Parts suggested Companies can pay attention to every working procedures in each section related unit, as this will be tied to the Company's accumulated time required to issue a group life insurance policy.

Isolate local Bacillus licheniformis KA-08 known extracellular thermostable keratinase producers. Scale up of thermostable keratinase production can be with cells immobilized. The objective of the research is to thermostable keratinase production of B. licheniformis KA-08 cells immobilization. Thermostable keratinase activities were determined with modification of Brandelli and Riffel method. Protein concentration of enzyme determined with Lowry method. Immobilization of cells by Ca-alginate matrix with Adinarayana method, alginate concentration and amount of alginate bead effects with Beshay method. The result extracellular thermostable keratinase of B. licheniformis KA-08 cells immobilized was maximum produced at 12 times incubation with activity as 9.25 U/mg. Three percent alginate has optimum activity. Three hundred alginate beads has optimum activity. Cells immobilized ofB. licheniformis KA-08 has scale up of thermostable keratinase activity at 2 times than free cells. Thermostable keratinase produced by cell immobilized was nine cycles.

Seed quality is very critical in agricultural production, especially to gain high yield and reduce disease problems in the field. New diseases or pathogens is potentially entering a country through seed movement by import activity. This study aimed to detect and identify seed-borne fungi from Brassicaceae seeds imported from the United States and Malaysia. Seeds were incubated on 5 sheets of wet blotting paper at a temperature of 27–30 °C for 14 days following surface sterilization. Each fungus that grows on the seed was isolated on potato dextrose agar and malt extract agar for further morphological identification. The three fungi most commonly found either on the seed with or without surface-sterilization were Aspergillus flavus, Curvularia lunata and A. niger. All of the fungi were a potential pathogen in the family Brassicaceae seeds and seedlings. Important pathogen in Brassicaceae crops, i.e. Phoma lingam was also found in small amounts and only on white pak choy seeds.

ABSTRAK Protease alkaline and keratinase are a group of protease enzym which have important value in detergen industry and skin tannery. Brevibacillus agri A-03 is thermophilic bacteria isolate that comes from Ambayan Sumatera Barat hot spring and has the ability to produce protease and keratinase. The purpose of this research is to get protease alkaline and thermostable keratinase from Brevibacilus agri-A03. thermostable enzym is produced from enzym production enzym that contains kasein and keratin at various medium pH, inoculum incubation temperature and medium type. Enzym activity is measured by modified Walker methode, protein content is measured by Lowry methode. Protease alkaline is produced at exponential phase, maximum at 18th hours of incubation and keratinase is produced at stationer phase, maximum at 22nd hours. Both enzym is produced optimically at medium pH condition 9.0; incubation temperature 55°C, inoculum 5% by using modified Johnvesly and Naik medium with each protease and keratinase specific activity 1.927 and 1.047 U/mg Keywords: Protease alkaline, Keratinase, Thermofilic, Brevibacillus agri A-03