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SENIOR HIGH SCHOOL STUDENTSâ€™ RESPONSES TO GUIDED INQUIRY LEARNING MODEL BAITY, NUR; JATMIKO, BUDI
Inovasi Pendidikan Fisika Vol 7, No 2 (2018)
Publisher : Inovasi Pendidikan Fisika

Show Abstract | Download Original | Original Source | Check in Google Scholar

The development of technology and education in the 21st century is also increasing the competition in the world. Learning model that can support the competition in the 21st century one of them is guided inquiry. Therefore, this study aims to describe the responses of senior high school students to guided inquiry learning model. This research is a pre-experimental study with one group pre-test - post-test design. Research subjects used in this study are 90 students divided into three classes, namely experiment 1, experiment 2, and experiment 3. Learning devices used are syllabus, lesson plan, handout, worksheet. The research instrument used is the questionnaire of the students response questionnaire. The collected data were analyzed using responsive questionnaire analysis. The result of this research shows that in the experimental class 1 students get responses of 76.25% with good category, and in the experimental class 2 & 3 get the students response of 81.08% with very good category. The results of the students responses prove that the guided inquiry learning model is effective when applied to physics learning.

PENGARUH KONSENTRASI PEKTIN KULIT PISANG TERHADAP KINERJA MEMBRAN SILIKA YANG DIAPLIKASIKAN PADA AIR PAYAU Muthia Elma; Mahmud Mahmud; Lilis Suryani; Akhbar Akhbar; Fitri Ria Mustalifah; Erdina L.A Rampun; Dhiyaur Rahmah; Nur Baity
Jukung (Jurnal Teknik Lingkungan) Vol 5, No 2 (2019): September 2019
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Banjarmasin berada di ketinggian rata-rata 0,16 m dibawah permukaan laut. Sumber air bersih seperti sungai dan sumur yang jika musim kemarau atau saat air laut pasang dapat menjadi asin karena intrusi air laut. Sehingga, dalam penggunaannya perlu mendapat perlakuan khusus untuk menghilangkan kadar garam yang terkandung dalam air seperti teknologi membran. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan pektin kulit pisang dengan konsentrasi berbeda terhadap kinerja membran silika-pektin pada proses desalinasi air payau. Membran yang digunakan berasal dari Tetraethyl orthosilicate (TEOS) dengan pektin dari limbah kulit pisang sebagai template. Penyisipan pektin dari limbah kulit pisang dilakukan untuk meningkatkan hidrostabilitas dan memperkuat struktur silika pada membran. Kinerja membran diuji melalui proses pervaporasi pada suhu ruang (25oC). Pervaporasi dilakukan dengan mengumpulkan permeat kedalam cold trap yang fasenya diubah menjadi uap pada saat pemisahan dan dikondensasi kembali dengan bantuan nitrogen cair. Pervaporasi air payau artifisial (NaCl 0,3%) sebagai umpan diuji menggunakan membran silika dengan konsentrasi pektin 1% dan 2,5% kalsinasi 300 oC. Hasil dari penelitian ini, fluks air yang didapat rata-rata 4,53 kg.m2.h-1 (1%) dan 7,14 kg.m2.h-1 (2,5%) dengan rejeksi garam yang diperoleh >90%. Dapat disimpulkan bahwa semakin tinggi konsentrasi pektin yang digunakan akan menghasilkan fluks yang lebih tinggi. Kata kunci: desalinasi, membran silika pektin, pektin kulit pisang, pervaporasi. Banjarmasin has an average height of 0.16 m below sea level. Clean water sources such as river and well during hot season or high tides become salty due to sea water intrusion. Therefore, it needs special treatment to remove the levels of salt contained in water using membrane technology. The purpose of this research is to understand the effect of the addition of pectin from banana peel with different concentrations on the performance of the silica-pectin membrane in the brackish water desalination process. Membrane was prepared from Tetraethyl orthosilicate (TEOS) with pectin from banana peel waste as a template. Pectin addition from banana peel waste is done to increase hydrostability and strengthen silica structure in the membrane. Membrane performance was tested through pervaporation at room temperature (25oC). Pervaporation is carried out by collecting permeats into cold trap whose phases are converted to gas during separation and re-condensed using liquid nitrogen. Artifisial brakish water pervaporation (NaCl 0.3%) applied as feed was treated by using silica membranes with pectin concentrations of 1% and 2.5% at calcination temperatures of 300oC. The results of this study, observed average water flux obtained was 4.53 kg.m2.h-1 (1%) and 7.14 kg.m2.h-1 (2.5%) with salt rejection obtained > 90 %. Keywords:banana peel pectin, desalination, pectin silica membrane, pervaporation

APLIKASI MEMBRAN SILIKA-PEKTIN UNTUK DESALINASI AIR PAYAU Muthia Elma; Mahmud Mahmud; Akhbar Akhbar; Lilis Suryani; Fitri Ria Mustalifah; Aulia Rahma; Dhiyaur Rahmah; Nur Baity
Jukung (Jurnal Teknik Lingkungan) Vol 6, No 1 (2020): MARET 2020
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Di Indonesia khususnya Kalimantan Selatan, sumber air yang digunakan kebanyakan adalah air sungai. Namun saat kemarau seperti bulan juli-agustus, air sungai banyak yang telah tekontaminasi air laut yang menyebabkan air menjadi asin akibat intrusi air laut. Salah satu teknologi yang dapat digunakan untuk memisahkan garam terlarut yang ada adalah dengan menggunakan teknologi membran dengan proses desalinasi. Membran yang digunakan adalah membran silika. Namun silika memiliki hidrostabilitas yang rendah sehingga perlu disisipkan dengan karbon yang terbuat dari pektin limbah kulit pisang agar memperkuat struktur pori maupun hidrostabilitas membran itu sendiri agar menambah kekuatan membran untuk menyaring kandungan garam yang ada pada air rawa asin. Tujuan dari penelitian ini adalah mengetahui kinerja dari membran silika-pektin pisang dengan proses sintesis membran 4 layer (Konsentrasi pektin 0,1% dengan suhu kalsinasi 300 oC dan 400 oC dengan teknik RTP (Rapid Thermal Processing) menggunakan metode pervaporasi (PV) serta air laut artifisial sebagai air umpan (NaCl 0,3 wt%) dengan suhu ruang (25 0 C). Diperoleh hasil penelitian konsentrasi pektin 0,1 % dengan suhu kalsinasi 300 oC dan 400 oC adalah berturut-turut 5,45 dan 13,70 Kgm-2h-1. Sementara itu, nilai rejeksi kedua membran ini berturut-turut 91,94 % dan 92,08. Jadi, kinerja kedua membran silika pektin tersebut yang paling baik adalah pada suhu kalsinasi 400oC untuk deslinasi air asin. Kata kunci : Air asin, desalinasi, membran silika-pektin, pervaporasi. In Indonesia, especially South Kalimantan, the source of water used is mostly river water. But during the dry season like July-August, many river water has contaminated sea water which causes the water to become salty due to sea water intrusion. One technology that can be used to separate existing dissolved salts is to use membrane technology with the desalination process. The membrane used is the silica membrane. However, silica has low hydrostability so it needs to be inserted with carbon made from pectin from banana peel waste in order to strengthen the pore structure and membrane hydrostability itself in order to increase the strength of the membrane to filter out the salt content in salt marsh water. The purpose of this study was to determine the performance of the banana silica-pectin membrane with a 4 layer membrane synthesis process (pectin concentration of 0.1% with calcination temperature of 300 oC and 400 oC with RTP (Rapid Thermal Processing) technique using pervaporation (PV) method and water artificial sea as feed water (NaCl 0.3 wt%) with room temperature (25 oC) .The results of the study were 0.1% pectin concentration with calcination temperature of 300 oC and 400 oC were respectively 5.45 and 13.70 Kgm-2h-1. Meanwhile, the rejection values of the two membranes were 91.94% and 92.08, respectively, so the best performance of the two pectin silica membranes was at calcination temperature of 400oC for saltwater deslination. Keywords: Desalination, pervaporation, salt water, silica-pectin membrane.

EVALUASI KINERJA MEMBRAN SILIKA PEKTIN UNTUK DESALINASI AIR PAYAU TERHADAP SUHU KALSINASI MEMBRAN Muthia Elma; Mahmud Mahmud; Fitri Ria Mustalifah; Akhbar Akhbar; Lilis Suryani; Amalia Enggar Pratiwi; Dhiyaur Rahmah; Nur Baity
Jukung (Jurnal Teknik Lingkungan) Vol 7, No 1 (2021): MARET 2021
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v7i1.10816

Krisis air bersih khususnya di Kalimantan Selatan pada musim kemarau sering terjadi karena adanya intrusi air laut yang mengakibatkan air menjadi payau. Konsentrasi garam tinggi yang tidak sesuai baku mutu air bersih mengharuskan perlu adanya pengolahan. Oleh karena itu, proses desalinasi melalui pervaporasi menjadi pilihan untuk memisahkan kadar garam yang terlarut dalam air. Proses desalinasi dilakukan menggunakan membran silika yang dimodifikasi dengan menambahkan karbon dari pektin pisang untuk memperkuat struktur pori dan meningkatkan hidrostabilitas membran. Penelitian ini bertujuan untuk mengetahui kinerja membran silika-pektin pisang dengan metode pervaporasi (PV) menggunakan umpan air payau (NaCl 0,3 wt%) pada suhu ruang (~25°C). Bahan utama pada pembuatan membran ini adalah tetraethyl orthosilicate (TEOS). Membran silika-pektin pisang dengan konsentrasi 1% dikalsinasi pada suhu 300°C dan suhu 400°C melalui teknik RTP (Rapid Thermal Processing). Nilai fluks membran pada suhu kalsinasi 300°C sebesar 4,5 kg.m-2.jam-1 dengan nilai rejeksi garamnya sebesar 99,64 %. Sedangkan pada membran dengan suhu kalsinasi 400°C menghasilkan nilai fluks sebesar 13,2 kg.m-2.jam-1 dengan nilai rejeksi garam sebesar 99,78%. Kinerja kedua membran menunjukkan hasil yang sangat baik pada suhu kalsinasi 400°C dikarenakan adanya pengaruh penyisipan karbon dalam matriks silika sehingga pori yang terbentuk lebih kuat. Kata kunci: air payau, desalinasi air payau, membran silika-pektin, pektin pisang, pervaporasi. South Kalimantan during the dry season has been clean water scarcity, due to the sea water intrusion which formed brackish water. High salt concentration in brackish water is does not meet with clean water quality standards that necessary to processing before used. Therefore, the desalination process via pervaporation has chosen to separate the dissolved salt ions in water. The desalination process was carried out using a modified silica membrane by carbon templated from banana pectin to strengthen the pore structure and increase membrane hydro-stability. This work aims to determine the performance of banana silica-pectin membrane by pervaporation (PV) method, using brackish water (NaCl 0,3 wt%) at room temperature (~25°C). The main ingredient to make this membrane is tetraethyl orthosilicate (TEOS). Banana silica-pectin membrane with a concentration of 1% was calcined at 300 ° C and 400°C via RTP (Rapid Thermal Processing) technique. The water flux of membrane calcined at 300°C is 4,5 kg.m-2.h-1 with the salt rejection of 99,64%. Whereas the membrane in calcined temperature of 400°C produced a water flux of 13,2 kg.m-2.h-1 with a salt rejection of 99,78%. An excellent performance of both membranes showed at calcination temperature of 400°C due to the influence of carbon template in the silica matrices that makes the pores more robust. Keywords: banana pectin, brackish water, brackish water desalination, pervaporation, silica-pectin membrane.

Pengaruh Daya Tarik Iklan, Kompetensi Tenaga Penjual, Persepsi Kualitas Layanan E-Banking Terhadap Minat Penggunaan Jasa Layanan E-Banking Bank BNI (Studi Kasus Pada Bni Kantor Layanan Unila) Baity, Nur
Jurnal Riset Akuntansi dan Manajemen Malahayati (JRAMM) Vol 8, No 1 (2019): Volume 8 Nomor 1
Publisher : Universitas Malahayati

The purpose of this study was to determine the effect of attractiveness of advertisements, thecompetence of salespeople and perceived of e-banking service quality on interest use in Bank BNI ebanking.This research is a qualitative study with a survey technique involving 95 Savings Pluscustomers at the University Service Office. Data collection uses a questionare, which is then analysedusing multiple linier regression analysis. The result of the study: (1) The attractiveness ofadvertisements, the competence of salespeople, and e-banking service quality influence the interest usein Bank BNI e-banking services, amounting to 47,5%, each independent variable contribute 19,51%,14,61% and 13,38%.; (2) Partially the attractiveness of advertising has a positive effect about 16,5%,and the quality of Bank BNI e-banking services is 20,8%.Investment in technology not only providesefficient benefits and effectiveness but also is the added value that the company has to compete toobtain customers. This can be seen from the partial increase of three factors, namely theattractiveness pf advertisements, the competence of salespeople, and the quality of e-banking servicesthat can increase customer interest in using e-banking services.Keywords: e-banking services, attractiveness of advertising, competency of salespeople.

IMPROVING SCIENCE LITERACY COMPETENCE OF GRADE VII STUDENTS THROUGH THE IMPLEMENTATION OF PROJECT-BASED LEARNING Aisyah Rohmatin, Siti; Andari, Tri; Baity, Nur
Jurnal PTK dan Pendidikan Vol. 9 No. 2 (2023): Juli - Desember
Publisher : Fakultas Tarbiyah dan Keguruan Universitas Islam Negeri Antasari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18592/ptk.v9i2.9354

The aim of this research is to find out the increase in the ability of students in scientific literacy after the Project Based Learning model is applied in their learning. This type of research is classroom action research. The research subjects consisted of 32 students in class VII E of SMPN 1 Bojonegoro for the 2022/2023 academic year. The data collection techniques used tests and observations. AKM-based formative tests and observation sheets are used for the data collection instruments. Processing the value of students' abilities in scientific literacy is calculated using the calculation of the percentage between the correct score and the maximum total score. The test results obtained are grouped into 5 categories; Very Good, Good, Adequate, Poor, and Very Poor. The results of the study show that the scientific literacy skills of students' competence on indicators of explaining a phenomenon scientifically, conducting evaluations and compiling scientific investigations, and interpreting scientific evidence have increased with an average score in pre-cycle learning of 67.58 which is in the adequate caegory and in cycle II follow-up increased to 83.58 which was in the Good category. The conclusion from this study is that the implementation of Project Based Learning is proven to be able to improve the scientific literacy skills of students in class VII E of SMP Negeri 1 Bojonegoro for the 2022/2023 academic year. Keywords: Science Learning, Project Based Learning, Competency Science Literacy Ability

Improving Project-Based Skills and Science Learning Outcomes of Learners through Project-Based Learning Model in Class VII-D SMP Negeri 1 Bojonegoro Wijayanti, Cicik; Andari, Tri; Baity, Nur
Science Education and Application Journal Vol 5 No 2 (2023): Science Education and Application Journal
Publisher : Program Studi Pendidikan IPA, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/seaj.v5i2.810

This research was designed in accordance with Classroom Action Research (CAR). The purpose of this study was to improve the project-based skills and science learning outcomes of students through the Project-Based Learning (PjBL) model in class VII-D SMP Negeri 1 Bojonegoro in the 2022/2023 academic year, with a total of 32 students. This research was conducted in two cycles, each cycle consisting of four stages, namely planning, implementation, observation, and reflection. In this study, data collection was carried out using observation techniques and giving tests at the end of the implementation. The focus of observation in this class action research is project-based skills and student learning outcomes.The research instruments used to determine the level of success of learners are project-based skills observation instruments and cognitive or knowledge learning outcomes instruments. The indicators of success in this study are if 80% of students classically have project-based skills at least with the predicate B in each aspect of project-based skills assessment and if 80% of students classically get science learning outcomes above the Criteria for Achievement of Learning Objectives (CALO) which is 70. The results showed that there was an increase in the project-based skills of students classically, from cycle I of 2.43 or 60.75% with the predicate C to 3.4 or 86% with the predicate B in cycle II. There was also an increase in the completeness of students' learning outcomes classically, from cycle I of 78.10%, to 93.75% in cycle II. The conclusion of this study is that the application of the PjBL model can classically improve the project-based skills and science learning outcomes of students in class VII-D SMP Negeri 1 Bojonegoro in the 2022/2023 academic year.

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