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PERUBAHAN KIMIA, MIKROBIOLOGIS DAN KARAKTERISTIK GEN HDC PENGKODE HISTIDIN DEKARBOKSILASE PADA IKAN TONGKOL ABU-ABU Thunnus tonggol SELAMA PENYIMPANAN SUHU DINGIN
Mala Nurilmala;
Asadatun Abdullah;
Vicentius Marco Matutina;
Nurjanah;
Roza Yusfiandayani;
M. Fedi A. Sondita;
Hanifah Husein Hizbullah
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 2 (2019): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University
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DOI: 10.29244/jitkt.v11i2.23007
Histamin merupakan senyawa amin biologis yang dapat terbentuk dari histidin bebas dalam daging ikan pada fase post rigor. Laju pertumbuhan histamin dapat diperlambat dengan cara menjaga mutu ikan menggunakan suhu dingin. Tujuan dari penelitian ini adalah menentukan lama waktu penyimpanan, perubahan kimia dan mikrobiologis ikan tongkol Thunnus tonggol serta waktu terdeteksinya gen hdc selama penyimpanan suhu 8±3°C. Rancangan penelitian yang digunakan adalah rancangan acak lengkap (RAL) dengan parameter perbedaan waktu penyimpanan ikan (1,2,3,4,5,6,7 hari) dan perbandingan es 1:1. Hasil penelitian menunjukkan ikan tongkol abu-abu mengalami kemunduran mutu selama 7 hari penyimpanan. Nilai organoleptik dan pH mengalami penurunan selama penyimpanan dan pada hari ketujuh ikan berada pada fase rigormortis. Nilai TVB dan TPC meningkat selama penyimpanan dan pada penyimpanan hari keenam sudah melewati batas aman untuk dikonsumsi. Kadar histamin pada hari ketujuh yaitu 1,96 ppm. DNA berhasil di-isolasi dan terdeteksi gen hdc, namun hasil amplifikasi belum efektif, sehingga diperlukan optimalisasi metode PCR. Profil protein yang terbentuk selama penyimpanan berdasarkan hasil SDS-PAGE mulai terpisah karena adanya aktivitas enzim katepsin.
PENGARUH PENGUNGKAPAN CORPORATE SOCIAL RESPONSIBILITY (CSR) TERHADAP COST OF CAPITAL (COC) DENGAN KEPEMILIKAN INSTITUSIONAL SEBAGAI VARIEBEL PEMODERASI
Gusti Ayu Putu Wulan Rahmasari
Jurnal Ilmiah Akuntansi dan Humanika Vol. 2 No. 2: EDISI JUNI 2013
Publisher : Universitas Pendidikan Ganesha
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DOI: 10.23887/jinah.v2i2.1670
ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh pengungkapan corporate social responsibility (CSR) terhadap cost of capital (COC), serta kepemilikan institusional sebagai variabel yang memoderasi pengaruh pengungkapan CSR terhadap COC. Penelitian ini menggunakan teknik purposive sampling dan didapatkan 125 sampel penelitian. Penelitian ini menggunakan MRA (Moderated Regression Analysis) untuk analisis data. Hasil penelitian ini mengindikasikan adanya pengaruh antara pengungkapan CSR terhadap COC. Hal ini menunjukkan bahwa semakin luas pengungkapan CSR maka akan menurunkan COC. Hasil dari analisis MRA menyatakan bahwa Kepemilikan Institusional tidak memoderasi pengaruh CSR terhadap COC. Oleh karena itu, kepemilikan institusional tidak terbukti mampu memperkuat pengungkapan CSR perusahaan untuk memberikan informasi terhadap investor dan secara langsung dapat menurunkan COC. Kata kunci : pengungkapan CSR, COC, Kepemilikan Institusional ABSTRACT This study aims to determine the effect of disclosure of corporate social responsibility (CSR) towards the cost of capital (COC), as well as the institutional ownership variables that moderate the influence of CSR disclosure to the COC. This study used a purposive sampling technique and obtained 125 samples of the study. This study using MRA (Moderated Regression Analysis) for data analysis. The results of this study indicate an influence of CSR disclosure of COC. This suggests that the more extensive disclosure of CSR it will reduce the COC. The results of the analysis of Institutional Ownership MRA states that did not moderate the effect of CSR on COC. Therefore, institutional ownership is proven to strengthen the company's CSR disclosure to provide information to investors and can directly reduce the COC. Keywords: CSR disclosure, COC, Institutional Ownership
PENGARUH PENGUNGKAPAN CORPORATE SOCIAL RESPONSIBILITY (CSR) TERHADAP COST OF CAPITAL (COC) DENGAN KEPEMILIKAN INSTITUSIONAL SEBAGAI VARIEBEL PEMODERASI
Gusti Ayu Putu Wulan Rahmasari
Jurnal Ilmiah Akuntansi dan Humanika Vol. 2 No. 2: EDISI JUNI 2013
Publisher : Universitas Pendidikan Ganesha
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DOI: 10.23887/jinah.v2i2.1671
ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh pengungkapan corporate social responsibility (CSR) terhadap cost of capital (COC), serta kepemilikan institusional sebagai variabel yang memoderasi pengaruh pengungkapan CSR terhadap COC. Penelitian ini menggunakan teknik purposive sampling dan didapatkan 125 sampel penelitian. Penelitian ini menggunakan MRA (Moderated Regression Analysis) untuk analisis data. Hasil penelitian ini mengindikasikan adanya pengaruh antara pengungkapan CSR terhadap COC. Hal ini menunjukkan bahwa semakin luas pengungkapan CSR maka akan menurunkan COC. Hasil dari analisis MRA menyatakan bahwa Kepemilikan Institusional tidak memoderasi pengaruh CSR terhadap COC. Oleh karena itu, kepemilikan institusional tidak terbukti mampu memperkuat pengungkapan CSR perusahaan untuk memberikan informasi terhadap investor dan secara langsung dapat menurunkan COC. Kata kunci : pengungkapan CSR, COC, Kepemilikan Institusional ABSTRACT This study aims to determine the effect of disclosure of corporate social responsibility (CSR) towards the cost of capital (COC), as well as the institutional ownership variables that moderate the influence of CSR disclosure to the COC. This study used a purposive sampling technique and obtained 125 samples of the study. This study using MRA (Moderated Regression Analysis) for data analysis. The results of this study indicate an influence of CSR disclosure of COC. This suggests that the more extensive disclosure of CSR it will reduce the COC. The results of the analysis of Institutional Ownership MRA states that did not moderate the effect of CSR on COC. Therefore, institutional ownership is proven to strengthen the company's CSR disclosure to provide information to investors and can directly reduce the COC. Keywords: CSR disclosure, COC, Institutional Ownership
STUDI PENURUNAN KANDUNGAN TOTAL COLIFORM DENGAN MENGGUNAKAN KOMBINASI VERTICAL FLOW ROUGHING FILTER (VRF) DAN HORIZONTAL FLOW ROUGHING FILTER (HRF) PADA AIR BUANGAN DOMESTIK ARTIFISIAL
Irma Suryanti;
Ganjar Samudro;
Sri Sumiyati
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro
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ABSTRACTThis research is aims to reduce the content of total coliform bacteria in domestic wastewater using a combination of vertical flow roughing filter (VRF) and horizontal flow roughing filter (HRF) for each variation of flow rate, the type and the size of filter media. Domestic wastewater influent is used as an artificial wastewater containing total coliform bacteria sample 2400 MPN/100 ml. The results of the best drop reaches 0 MPN/100 ml sample contained in VRF combination with medium-sized fine charcoal filter (10 mm,6mm and 3mm) on the flow rate 0.0926 liters/hour.Variations in discharge and the size of filter media for total coliform bacteria indicates a decrease inversely proportional relationship, where the smaller size of the discharge and the filter media decreased total coliform bacteria. As for the type of filter media, charcoal filter media types work better than gravel to reduce the content of total coliform bacteria.
PRO DAN KONTRA SERTIFIKASI PERNIKAHAN
Intan Nurrachmi;
Neng Dewi Himayasari
Tahkim (Jurnal Peradaban dan Hukum Islam) Vol 3, No 1 (2020)
Publisher : Prodi Hukum Keluarga Islam (Ahwal Asy-Syakhsiyyah) Fakultas Syariah Unisba
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DOI: 10.29313/tahkim.v3i1.5618
ABSTRACTPre-marriage counseling programs or so-called bride-to-be courses can be organized by the Ministry of Religion, the Office of Religious Affairs or Agencies and Institutions that have been established by the Ministry of Religion. This guidance aims to provide knowledge about Islamic sharia in domestic life in order to reach families who are confident in mawaddah warahmah. This research is motivated by the Decree of the Director General of Islamic Community Guidance Number. 373 of 2017 concerning Technical Guidance for Marriage Guidance for Prospective Brides. In these rules only contain material / technical / managerial without any binding legal substance so that the phenomenon is now the pros and cons of the imposition of pre-marital certificate obligations in the requirements of marriage registration. This research is qualitative research with descriptive normative analysis studies. The approach used in this research is library research and field research, from this research that is as a journal so that it can be a source of reference about the pros and cons polemics of the validity of pre-marital certificates both for writing thesis, theses, papers, and journals as well as enriching teaching materials study at Ahwal Syakhsiyyah study program for students. In addition, the results of this study are expected to be used as a reference and benchmark for law enforcement and the community in assessing policy Keywords : Marriage, Prenuptial Certificate, Islamic Sharia
THE EFFECT OF COLLABORATIVE WRITING ON THE ABILITY OF THE FIRST YEAR STUDENTS OF SMP KARTIKA 1-5 PEKANBARU IN WRITING DESCRIPTIVE TEXTS
Eka Ernawati;
Eliwarti Eliwarti;
Afrianto Daud
Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan VOL 6 : EDISI 2 JULI - DESEMBER 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Keguruan dan Ilmu Pendidikan
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Abstract: The objective of this research was to find out whether there is a significant effect of collaborative writing on the students’ ability of SMP Kartika 1-5 Pekanbaru in writing descriptive texts. The design of this research was pre-experimental research with one group pre-test post-test design. A single group was selected to be a sample by using cluster random sampling. There were 28 students as the sample. The instrument was writing tests used both in pre-test and post-test. Then, the data were analyzed by using t-test formula. After the data were analyzed, it was found that t-test score was 9.785 while t-table score in significance level 5% df= 27 was 2.051. Since t-test was higher than t-table, it can be concluded that alternative hypothesis was accepted. It means that “there is a significant effect of collaborative writing on the students’ ability of SMP Kartika 1-5 Pekanbaru in witing descriptive texts”. Based on the research findings, it is suggested that collaborative writing can help the students improve their writing ability especially in writing descriptive texts.Key Words: Effect, Collaborative Writing, Writing Ability, Descriptive Text
CONDUCTING TEACHING ACTIVITIES IN JUNIOR HIGH SCHOOL BY NOT PROVIDING AN OFFICIAL DOCUMENT OF LESSON PLAN
putu ngurah rusmawan
EDUCAFL : Journal of Education of English as Foreign Language Vol 1, No 1 (2018): EDUCAFL
Publisher : Fakultas Ilmu Budaya, Universitas Brawijaya
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DOI: 10.21776/ub.Educafl.2018.001.01.05
ABSTRACT The systematic lesson plans are guiding the teachers to provide the effective teaching process. It is like a direction of what the teacher should do during conducting teaching activity. The lesson plan can convey teachers’ performance in their classes in a good way. Unfortunately, many teachers still do not have enough capability to design systematic lesson plan because the teachers get difficulties in interpreting basic competences; therefore, they make a lesson plan incorrectly. The preliminary study conducted in one private junior high school, in fact, the teacher carried out the teaching activities in that school without providing official document of lesson plan. For this reason, this study aims to discuss how the teaching activities carried out by the teacher without official document of lesson plan at junior high school in Porong to achieve the basic competence. This study was conducted in the classroom of VII-1 in a natural setting, therefore, the appropriate design was qualitative research design. The subject of the study was the English teacher. To collect data, the researcher used observation. The data gained from the observation were described and analyzed to answer the research questions. The results of the study showed that the teaching activities were carried out by the teacher without providing official document of lesson plan were poor. The expectation of the basic competence of writing descriptive text had been failed to be reached. The teacher’s opening, main, and closing activities were poorly organized there were so many weakness could be found. Keyword: Teaching Activities, Lesson Plan, junior high school
TEKANAN UAP (VAPOR PRESSURE) UNTUK CAMPURAN 2-BUTANOL + DIETHYL CARBONATE DAN TERT-BUTANOL + DIETHYL CARBONATE
Gede Wibawa;
Annas Wiguno;
Rizky Tetriyanda;
Kuswandi Kuswandi
JURNAL INTEGRASI PROSES VOLUME 7 NOMOR 2 DESEMBER 2018
Publisher : JURNAL INTEGRASI PROSES
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DOI: 10.36055/jip.v7i2.4488
Penggunaan Methyl tert-butyl ether (MTBE) sebagai octane booster dalam campuran gasoline telah menyebabkan masalah lingkungan seperti pencemaran pada tanah dan merupakan zat yang dapat memicu kanker. Akhir-akhir ini, alcohol sebagai octane booster mendapat perhatian lebih karena dapat diproduksi secara besar-besaran dengan bahan baku biomasa. Disamping itu, senyawa alkyl carbonate seperti diethyl carbonate (DEC) bisa dijadikan alternative untuk menggantikan MTBE sebagai octane booster untuk campuran gasoline karena nilai octane yang tinggi dan sebagai bahan kimia yang ramah lingkungan. Untuk itu, campuran alcohols dan DEC diharapkan dapat digunakan sebagai octane booster yang lebih baik dari MTBE. Salah satu parameter penting dalam blending gasoline adalah tekanan uap (vapor pressure) karena parameter tersebut berkaitan dengan emisi. Sehingga penelitian ini bertujuan untuk mengukur isothermal vapor pressure dari campuran 2-butanol + diethyl carbonate dan tert-butanol + diethyl carbonate pada range suhu 303.15-323.15 K secara akurat dengan peralatan ebulliometer sederhana yang kita kembangkan. Data eksperiment dikorelasikan dengan model Wilson, NRTL dan UNIQUAC . Eksperimen diawali dengan mengukur tekanan uap masing-masing komponen murni dan membandingkan hasilnya dengan data literatur dimana diperoleh Average Absolute Deviation (AAD) dibawah 0.8%. Selanjutnya pengukuran vapor pressure untuk campuran biner dilakukan pada range konsentrasi antara 0-1. Hasil eksperimen menunjukkan bahwa semua campuran menyimpang positif terhadap Hukum Raoult. Data eksperimen untuk campuran tert-butanol (1) + DEC (2) dikorelasikan dengan model Wilson, UNIQUAC dan NRTL memberikan AAD 1.3% dan untuk campuran 2-butanol (1) + DEC (2) memberikan AAD maksimum 1.5% untuk semua model yang dipelajari.
EFEK PROTEIN SEMPURNA DAN TIDAK SEMPURNA TERHADAP BERAT BADAN DAN ALBUMIN TIKUS
hermawati Hermawati;
Abdul Salam;
Sabaria Manti Battung
Jurnal Gizi Masyarakat Indonesia (The Journal of Indonesian Community Nutrition) Vol. 8 No. 1 (2019): Jurnal Gizi Masyarakat Indonesia Volume.8 No. 1 2019
Publisher : Departement of Nutrition, Faculty of Public Health, Hasanuddin University, Makassar
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DOI: 10.30597/jgmi.v8i1.7373
Introduction: Protein is the trigger for the occurrence of obesity and changes in albumin levelsin weight gain. Obesity is one of the most serious public health challenges in the 21st century. Objektive:This study aimed to determine the effects of high-protein complete and uncomplete diet to weight gainand albumin levels in wistar rats. Methods: The samples used 15 wistas rats which were dividedrandomly into 3 groups, each consisting of 5 tails weighing 150-200 g and in healthy condition.Standard AD 2 feed was given to the control group, intervention feed given to complete protein andsoybean intervention feed protein group was uncomplete. The study was conducted for 6 weeks, 2 weeksof adaptation and 4 weeks of intervention. The research method used a true experiment with arandomized control group pretest-posttest desigen. The data collected consisted of weighing the bodyand measuring the rat albumin level which was carried out 2 times before the intervention day 0 andafter the intervention of the 28th day. Data analysis used One Way ANOVA statistical test followed byPost Hoc Tukey and Paired Sample Test was accepted if p <0.05. Results: The results of measurementsof weight gain obtained before the intervention were not significant with p = 0.790 and measurementsafter intervention obtained significant results with a value of p = 0.014, as well as examination ofinsignificant albumin levels before intervention with p = 0.251 and significant on examination after theintervention with a value of p = 0.003. Conclusion: It It can be concluded as an intervention afterweight gain and albumin levels.
CHARACERISTICS OF SEA HORSE Hippocampus comes FROM NORTH WATERS OF BINTAN ISLAND, RIAU ISLANDS
Evi Maya Sari;
Mala Nurilmala;
Asadatun Abdullah
COJ (Coastal and Ocean Journal) Vol. 2 No. 1 (2018): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB
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DOI: 10.29244/COJ.2.1.23-28
Sea horse Hippocampus spp. is a group of unique marine biota and its distribution is spread all over the world. This study aims to determine the characteristics of seahorse Hippocampus comes from North Bintan waters by looking at the yield and degree of hydrolysis (DH) of the protein hydrolyzate sample. This samples obtained from the catch of fishermen in the North Waters of Bintan Island. The analysis is the measurement of the yield and the degree of hydrolysis. The results obtained from the study that the horse of sea H. comes from the North waters of Bintan shows that the highest yield in the sea horse body is bone that is equal to 43.69%. This proves that the seahorse is one of the ingredients that can be utilized as a further processed dry feed such as in the manufacture of flour and dried products (such as ginseng). As for the degree of hydrolysis generated from the substrate of H. comes a sea horse protein derived from meat and bone have a high value compared to the substrate of sea horse bone meal. Key words: sea horse, yield, degree of hydrolysis, North Waters of Bintan Island