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OPTIMASI AMOBILISASI XILANASE DARI TRICHODERMA VIRIDE DENGAN MATRIKS ZEOLIT Sari, Intan Permata; Sutrisno, Sutrisno; Prasetyawan, Sasangka
Jurnal Ilmu Kimia Universitas Brawijaya Vol 2, No 1 (2014)
Publisher : Jurusan Kimia, FMIPA Universitas Brawijaya

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Abstract

Amobilisasi xilanase dengan matriks zeolit dilakukan melalui metode adsorpsi fisik. Amobilisasi dilakukan untuk meningkatkan stabilitas enzim xilanase, karena xilanase bebas tidak stabil terhadap lingkungan. Tujuan dari penelitian ini yaitu menentukan waktu pengocokan dan konsentrasi xilanase optimum. Pada penelitian ini enzim xilanase diisolasi dari Trichoderma viride, enzim yang didapat kemudian dimurnikan dengan metode pengendapan menggunakan amonium sulfat dengan tingkat kejenuhan 40-80%. Untuk menentukan waktu pengocokkan optimum amobilisasi enzim dilakukan pada 0,1 g zeolit dalam temperatur kamar dan kecepatan pengocokkan 100 rpm dengan variasi waktu pengocokan (1, 2, 3, 4, dan 5) jam, sedangkan untuk menentukan konsentrasi enzim xilanase optimum dilakukan pada 0,1 g zeolit dalam temperatur kamar dan kecepatan pengocokkan 100 rpm dengan variasi konsentrasi xilanase(2,244; 2,618; 2,992; 3,366: 3,740) mg/mL. Hasil penelitian menunjukan waktu pengocokan optimum pada 3 jam dan konsentrasi xilanase optimum terjadi pada konsentrasi 3,366 mg/mL dengan aktivitas 25,74 unit.Kata kunci: Xilanase, Trichoderma viride, Amobilisasi, Zeolit
PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH TERHADAP KEMAMPUAN REPRESENTASI MATEMATIS DAN BELIEF SISWA Sari, Intan Permata; Noer, Sri Hastuti; Gunowibowo, Pentatito
Jurnal Pendidikan Matematika Unila Vol 2, No 7 (2014): JURNAL PENDIDIKAN MATEMATIKA UNIVERSITAS LAMPUNG
Publisher : Jurnal Pendidikan Matematika Unila

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Abstract

This quasi experimental research aimed to know the influence of problem based learning model towards student’s mathematical representation skill and belief. The population of this research was all students of grade 8thof SMPN 25 Bandar Lampung in academic year of 2013/2014 that was distributed into eight classes. By purposive sampling technique, it was chosen students of VIII H and VIII I class as samples. The research data were obtained by test of mathematical representation skill and belief scale. The result of data analysis showed that the problem based learning affects the student’s mathematical representation skill, but it couldn’t affects the student’s belief.Penelitian eksperimen semu ini bertujuan untuk mengetahui pengaruh model pembelajaran berbasis masalah terhadap kemampuan representasi matematis dan belief siswa. Populasi penelitian ini adalah seluruh siswa kelas VIII SMPN 25 Bandar Lampung tahun ajaran 2013/2014 yang terdistribusi dalam delapan kelas. Dengan teknik purposive sampling, terpilih siswa kelas VIII H dan VIII I sebagai sampel. Data penelitian diperoleh melalui tes kemampuan representasi matematis dan skala belief. Hasil analisis data menunjukkan bahwa pembelajaran berbasis masalah berpengaruh terhadap kemampuan representasi matematis siswa, namun tidak berpengaruh terhadap belief siswa.Kata kunci: belief, pembelajaran berbasis masalah, representasi matematis
Hukuman bagi Pelaku Pelecehan Seksual terhadap Sesama Jenis - 22 Sari, Intan Permata
LEGITIMASI: Jurnal Hukum Pidana dan Politik Islam Vol 6, No 1 (2017)
Publisher : Faculty Syariah and Law UIN Ar-Raniry Banda Aceh

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Abstract

Bentuk pelecehan seksual sesama jenis menurut hukum positif pada dasarnya adalah sama dengan pelecehan seksual terhadap lawan jenis, hanya saja pelecehan seksual sesama jenis pelaku dan korbannya dari sesama jenis.Unsur-unsur perbuatan pelecehan seksual sesama jenis adalah adanya suatu perbuatan yang berhubungan dengan seksual, wujud perbuatan berupa fisik dan non-fisik dan tidak ada kesukarelaan. Sedangkan yang membedakannya pelecehan seksual sesama jenis di dalamnya terkait pelaku berasal dari jenis kelamin yang sama.Namun menurut hukum Islam hukuman bagi pelecehan seksual sesama jenis sama halnya dengan hukuman homo seksuall karena kesukaan pelaku pada sesama jenis, hanya saja perbedaannya jika homo seksual dilakukan karena suka sama suka, sedangkan pelecehan terjadi di sebabkan paksaan oleh pihak lain. Pembuktian terhadap pelaku pelecehan seksual sesama jenis dilakukan sesuai dengan ketentuan Pasal 184 ayat (1) KUHAP bahwa pembuktian dilakukan dengan adanya keterangan saksi, keterangan ahli, surat, petunjuk dan keterangan terdakwa. Pembuktian tindak pidana pelecehan seksual sesama jenis juga memerlukan peranan dokter guna memberikan keterangan medis melalui visum etrepertum.Di dalam hukum Islam larangan berperilaku seks menyimpang seperti homoseksual maupun lesbian adalah ketentuan qath’i (tegas) dan muhkamat (jelas ketetapan hukumnya), sehingga ada tiga hukuman berat terhadap pelaku homoseksual: Pertama; Dibunuh. Kedua; Dibakar. Ketiga; Dilempar dengan batu setelah dijatuhkan dari tempat yang tinggi. Hal ini sesuai dengan mazhab Syafi’i karena banyak penduduk Indonesia yang mengikutinya.
FABRIKASI DAN KARAKTERISASI ELEKTRODA KARBON UNTUK SISTEM DESALINASI LARUTAN KCl DENGAN METODE FREEZING THAWING Sari, Intan Permata; Endarko, Endarko
BERKALA FISIKA 2015: Berkala Fisika Vol. 18 No. 1 Tahun 2015
Publisher : BERKALA FISIKA

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Abstract

Carbon electrode using an active carbon and poly(vinylalcohol) PVA binder  (a   water-soluble  polymer)  by   freezing thawing have successfully been synthesized and characterized. In this research, synthesis of carbon electrode was used freezing thawing method with 4 cycles.  For each one cycle is required 12 hours for freezing and 12 hours for thawing. Specific capacitance of carbon electrode has been observed and measured using cyclic voltammetry and resulted in a value of 9.1 F/g. Meanwhile, SEM image of the cross-section of electrode showed that the electrode has enough pores so that can be used as electrode in a capacitive deionization system. . Desalination experiments were carried out in single-pass mode. KCl solution with an initial conductivity of 180μs/cm is pumped to CDI cell with flow rate of 25 mL/min at voltage source of 2 V. The result showed that the percentage value of the salt-removal was achieved at 64.95%. Keywords: PVA, activated carbon, capacitive deionization, cyclic voltammetry, desalination
HARMONI DALAM KEBHINEKAAN (Kearifan Lokal Masyarakat Pulau Enggano Provinsi Bengkulu Dalam Mengatasi Konflik) Sari, Intan Permata
Jurnal Antropologi: Isu-Isu Sosial Budaya Vol 19, No 2 (2017): (December)
Publisher : Universitas Andalas

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Abstract

Ethnic and religious conflicts are still a hot conversation in early 2017. Discourses on non-Muslim Muslims as well as indigenous non-indigenous peoples are the main topics in various news in Indonesia. Peace that has been maintained, post-conflict that occurred in Sampit and Ambon, suddenly disturbed. People in Indonesia are again divided into religious groups (Muslim or non-Muslim) or ethnic groups (indigenous or non-indigenous). However, Indonesia has the hope to make peace in the differences and make it harmony in society. We can learn from Enggano society. The people of Enggano are the people who live in one of the outer islands in Indonesia. The island is located in the west of Sumatra Island. The Enggano people are able to live in diversity even though their lives are far from prosperous, poor access and facilities, and far from the governments attention. Almost no conflict occurred on this island. This is because Enggano local wisdom is so strong that it can bridge the differences.
ASSESSMENT OF COORDINATION BETWEEN UNITS IN HOSPITAL BY HIGH PERFORMANCE WORK PRACTICES Sari, Intan Permata; Wulandari, Ratna Dwi
Jurnal Administrasi Kesehatan Indonesia Vol 3, No 2 (2015)
Publisher : Universitas Airlangga

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ABSTRACTThe survey about coordination in hospital showed that the coordinaton between units have low score including the lack of communication and problem solving between units. The objectives of this study is to describe coordination in hospital considered by high performance practices that consist of 5 items : selection for cross-functional teamwork, rewards for cross-functional teamwork, cross-functional teamwork conflict resolution, cross-functional meetings, and cross-functional boundary spanner. This research is descriptive study using cross sectional design. Samples or respondents are 16, selected using purposive sampling according to the units which their function and job still related with the medical service in the hospital. The result showed that there are a specific criteria to select their employee. The most responden said that education level is the most important criteria for the selection. There is a reward for the best employee those are trophy and some money given to the best employee and the best group of the months. There is conflict resolution through the meeting with the supervisor and director to discuss their problems. There is functional meeting that is weekly report, and there is boundary spanner to coordinated with the other unit if they have problems. This study conclude that coordination in hospital can complete four items of performance work practice, but aspect cross-functional meetings still not working properly. Therefore, it needs to be repaired because this meeting is important to discuss about development of the medical service in this hospital.Keywords :Coordination, high performance work practices, medical service
Uji Bakteriologik Air Olahan Rain Water Harvesting System di SDN Pejagalan 01 dan 02, Jakarta Utara Sari, Intan Permata; Kurniawan, Sandy Vitria; Pudjilestari, Liling; Enty, Enty
Damianus Journal of Medicine Vol 14, No 1 (2015): Damianus Journal of Medicine
Publisher : Damianus Journal of Medicine

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Abstract

Latar Belakang: Tersedianya air bersih merupakan kebutuhan global bagi setiap manusia di dunia. Kekurangan air bersih membuat manusia terus mencari berbagai solusi untuk mengatasinya. Salah satu solusinya adalah dengan menggunakan metode Rain Water Harvesting System (RWHS) yang memanfaatkan dan mengolah air hujan untuk dapat dipakai kembali. Jakarta sebagai salah satu kota di Indonesia yang juga mengalami masalah air bersih mengaplikasikan RWHS di beberapa sekolah di wilayah Kecamatan Penjaringan, Jakarta Utara.Tujuan: Penelitian ini bertujuan untuk mengetahui kualitas bakteriologik air hujan hasil olahan RWHS.Metode: Penelitian ini dilakukan pada delapan titik bangunan RWHS di SDN Pejagalan 01 Pagi dan SDN Pejagalan 02 Petang. Pengambilan sampel dilakukan pada saat hari hujan di bulan Desember 2013. Sampel kemudian langsung diuji dengan menggunakan metode Angka Lempeng Total (ALT) dan Angka Paling Mungkin (APM).Hasil: Pengurangan total koliform terjadi pada titik bak penampung sementara, bak filtrasi, dan bak penampung. Pada tangki reservoir terjadi peningkatan total koliform.Kesimpulan: Masing-masing titik RWHS dapat terkontaminasi oleh faktor-faktor yang berbeda yang memengaruhi nilai total koliform. Hasil pengujian bakteri menunjukkan pengurangan jumlah total koliform pada titik setelah mengalami filtrasi dibandingkan dengan titik sebelum mengalami filtrasi yang menunjukkan peningkatan kualitas air hasil olahan RWHS. Meskipun demikian, hasil penelitian menunjukkan bahwa kualitas olahan air hujan ini belum memenuhi standar kualitas air bersih menurut Peraturan Menteri Kesehatan nomor: 416/MENKES/PER/IX/1990.
Pengaruh Kualitas Produk, Harga, Merek, dan Iklan Terhadap Keputusan Pembelian Konsumen Sari, Intan Permata; Nurdin, Nurdin; Pujiati, Pujiati
JEE (Jurnal Edukasi Ekobis) Vol 6, No 1 (2018): JEE (Jurnal Edukasi Ekobis)
Publisher : FKIP Unila

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Abstract

The aim of this study was to find out the effect of product quality, price, brand, advertising, and lifestyle to consumer purchasing decision oppo smartphone android products at oppo outlet Mall Boemi Kedaton Bandar Lampung. The method in this study was descriptive verification with ex post facto approach and survey. Sampling in this study as many as 75 people were determined by accidental sampling technique. Data analyzed multiple linear regression model. The results shows that there is an positive and significant influence of product quality, price, brand, advertising, and lifestyle to consumer purchasing decision oppo smartphone android products at oppo outlet Mall Boemi Kedaton Bandar Lampung.Penelitian ini bertujuan untuk mengetahui pengaruh kualitas produk, harga, merek, iklan, dan gaya hidup terhadap keputusan pembelian konsumen produk smartphone oppo android pada gerai oppo Mall Boemi Kedaton Bandar Lampung. Metode yang digunakan deskriptif verifikatif dengan pendekatan ex post facto dan survey.Sampel berjumlah 75 orang yang ditentukan dengan teknik accidental sampling. Analisis data menggunakan model regresi linier ganda. Hasil analisis data menunjukkan bahwa ada pengaruh yang positif dan signifikan kualitas produk, harga, merek, iklan, dan gaya hidup terhadap keputusan pembelian konsumen produk smartphone oppo android pada gerai oppo Mall Boemi Kedaton Bandar Lampung.Kata kunci: kualitas produk, harga, merek, iklan, keputusan pembelian
Pillarization of layer double hydroxides (Mg/Al) with keggin type K4[α-SiW12O40]•nH2O and its application as adsorbent of procion red dye Sari, Intan Permata; Said, Muhammad; Lesbani, Aldes
Science and Technology Indonesia Vol 2 No 3 (2017): July
Publisher : ARTS Publishing

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Abstract

Pillarization of layered double hydroxides with polyoxometalate K4[α-SiW12O40]•nH2O at various times i.e. 3, 6, 9, 12, 24, 36 and 48 hours has been done. The pillared product was characterized by FT-IR spectrophotometer and XRD. The optimum pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O was used as an adsorbent of procion red dye. The results of characterization using FT-IR spectrophotometer is not yet show the optimum pillarization process. The characterisation using XRD the successfully of pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O showing the existence of diffraction angle 8.5o with intensity 355. Furthermore, the pillared layered double hydroxides of polyoxometalate K4[α-SiW12O40]•nH2O with time variation of 12 hours was applied as an adsorbent of procion red dye. The results show the adsorption rate was 0.523 min-1, the highest of absorption capacity at 70oC was 10.8 mol/g, the highest energy of absorption 70 oC was 125 kJ/mol. The enthalpy (∆H) and entropy (∆S), decrease as the increasing concentration of procion red dye. Keywords: layered double hydroxides, polyoxometalate, pillaration, procion red, adsorption
Pembuatan Indeks Jurnal Ilmiah di Perpustakaan Institut Teknologi Padang Sari, Intan Permata; Rahmah, Elva
Ilmu Informasi Perpustakaan dan Kearsipan Vol 5, No 1 (2016): Seri B
Publisher : Program Studi Informasi, Perpustakaan, dan Kearsipan Jurusan Bahasa dan Sastra Indonesia

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Abstract

This paper discussed about creating indexes of scientific journals in the Library of the Institute of Technology Padang. This paper aims to describe how the manufacturing index ilmial journals in the Library Institute of Technology Padang. The method used is descriptive method with data collection through observation or direct observation to the Library Institute of Technology Padang, interviews, and literature. From the observation of interviews conducted at the Institute of Technology Library Padang, collected as many as 19 journals with the number of 413 articles. Based on the results of the discussion in the manufacturing index of scientific journals in the Library of the Institute of Technology of Padang, we can conclude several steps taken indexing scientific journals such as: 1) The initial observations of the document, which is observing the document to be indexed and collect the necessary data; 2) make a description, which was to determine the authors name, title of article, journal titles containing the article, volume (number), month and year of issue of the journal, and page number of the journal that published articles; and 3) typing index.Keyword: index; journal; Institute of Technology Padang