bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS KADAR α-TOKOFEROL (VITAMIN E) DALAM DAUN KELOR (Moringa oleifera Lam) DARI DAERAH PESISIR DAN PEGUNUNGAN SERTA POTENSINYA SEBAGAI ANTIOKSIDAN
Authors: Mubarak Khalil , Natsir Hasnah , Wahab Abd. Wahid , Satrimafitrah Pasjan 
Published: April 2018

Alpha-tocopherol, a major vitamin E component, functions as an antioxidant that neutralizes free radicals in a living organism. Moringa oleifera Lam. leaves are rich source of carotenoids and -tocopherol. This research was aimed to determine the concentration of α-tocopherol and examine the activity of moringa leaves (Moringa oleifera L.) crude extracts as an antioxidant. Sample used in this research were juvenile and adult moringa leaves (Moringa oleifera L), which were taken from seashore of Barru regency and highland of Soppeng regency. Extraction of the leaves was carried out by reflux method using ethanol as a solvent, and then evaporated to produce concentrated ethanol extract. Analyzes were detected at wavelenght of 510.20 nm using UV-Vis Spectroscopy, the results indicated that concentration of α-tocopherol extracted from juvenile and adult moringa leaves from seashore area were 104.52 mg/100g and 11.419 mg/100g respectively, whilst the leaves from highland area gave a concentration of 134.4 mg/100g and 114.918 mg/100g. Next, we examined the antioxidant activity of each type of leaf using DPPH (1,1-diphenyl-2-picrylhydrazyl) methods at the wavelength of 515 nm. The IC50 results data showed that ethanol extract of juvenile and adult leaves from seashore area were 172.71 μg/mL and 258.92 μg/mL respectively, and categorized as weak antioxidant. Adversely, juvenile leaves from highland area gave a result of 97.79 μg/mL and categorized as strong antioxidant; while adult leaves from the same area gave a values of 143.14 μL/mL and categorized as medium antioxidant. Vitamin E and BHT were used as control and had higher values compared to all samples.Keywords: α-tocopherol, antioxidant, Moringa oleifera leaves, DPPH, UV-Vis Spectrophotometer.
POTENSI PRODUKSI BIOFUEL DARI BIOMASSA FITOPLANKTON LAUT SPESIES Chlorella vulgaris, Dunaliella salina DAN Spirulina sp., YANG DITUMBUHKAN DALAM NUTRIEN UNGGUL “MSSIP” TERINDUKSI ION LOGAM Fe, Co, DAN Ni
Authors: Kasim Syahruddin , Taba Paulina , Raya Indah , Ruslan Ruslan 
Published: April 2018

Research about composition of superior nutrients, growth parameters, and best method to maximize production of biomass sea phytoplankton, Chlorella vulgaris, Dunaliella salina, and Spirulina sp. has been performed. The nutrients was named as MSSIP which were consist of following compositions: urea fertilizer, Arschat-M nutrient, Fe:Co:Ni metal ions (6 : 3 : 9 : 6 : 3). Methods used were identification and analysis of sea phytoplankton. Determination of optimum growth condition, pure culture, and mass culture were using local raw materials-based engineered nutrients or MSSIP (M. Sjahrul-Syahruddin Kasim-Indah Raya-Paulina Taba). Determination of product density of sea phytoplankton biomass, analyses of carbohydrate content, and lipid biomass were done by using haemocytometer and microscope, Luff Schrol method, and soxhlet method (n-hexane as solvent), respectively. Morphology of phytoplankton was identified by using a digital camera microscope, SZ60/sZ60-61. Furthermore, to understand the effect of metal ions, Fe, Co, and Ni added into MSSIP nutrient, identification of nutrient before and after culturing process were done using XRF-Thermo-Fisher. The results showed that Chlorella vulgaris, Dunaliella salina, and Spirulina sp. were suitable as raw materials to produce biofuel. Those three phytoplankton contained 0,3095 g/L, 0,3782 g/L, and 0,3325 g/L biomass, 32,49%w/w, 31,58%w/w, and 29,81%w/w carbohydrates; and 25,95%w/w, 26,82%w/w and 24,53%w/w lipid, respectively. Best optimum condition of culture were salinity of 30-35%, temperature of 20-30 °C, pH of 8-9, initial density of 2.5 x 104 cell/mL, light exposure of 40 watt, and continuously aerated with CO2. Based on our study, sea phytoplankton, Chlorella vulgaris, Dunaliella salina, and Spirulina sp. have a high potency as source of bioethanol and biodiesel.Keywords: mass culture, superior nutrient MSSIP, sea phytoplankton biomass, Fe, Co, Ni metal ions
PENENTUAN WAKTU PARUH ENZIM AMILASE AMOBIL DARI KECAMBAH KACANG HIJAU (Phaseolus aureus) PADA PRODUKSI GLUKOSA DARI MALTODEKSTRIN
Authors: Turah Nur'ain , Bahri Syaiful , Nurakhirawati Nurakhirawati 
Published: April 2018

Telah dilakukan penelitian tentang penentuan waktu paruh enzim amobil dari kecambah kacang hijau (Phaseolus aureus) untuk produksi glukosa dari maltodekstrin. Penelitian ini bertujuan untuk mengetahui rasio kecambah kacang hijau : air terbaik untuk proses isolasi enzim amilase, dan konsentrasi terbaik alginat untuk proses amobilisasi serta menentukan waktu paruh enzim amobil dalam menghidrolisis maltodekstrin menjadi glukosa. Penelitian dirancang menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 2 faktor yaitu rasio kecambah kacang hijau : air terdiri atas 5 taraf (1:1, 2:1, 3:1, 4:1, dan 5:1 (b/v)) dan konsentrasi alginat terdiri dari 5 taraf (2%, 2,5%, 3%, 3,5%, dan 4%) yang masing-masing dilakukan secara duplo. Parameter yang diamati adalah kadar glukosa. Hasil penelitian menunjukkan rasio kecambah kacang hijau : air terbaik untuk produksi amilase kasar yang digunakan dalam produksi glukosa dari maltodekstrin adalah 3:1 (b/v) dengan kadar glukosa 3966,52 mg/L, konsentrasi alginat terbaik yang digunakan sebagai bahan pengamobil amilase kasar untuk produksi glukosa dari maltodekstrin adalah konsentrasi 3% dengan kadar glukosa 4686,54 mg/L, dan waktu paruh enzim amobil yang diperoleh adalah 444,34 menit.Kata Kunci : kecambah kacang hijau, alginat, amilase, maltodekstrin, glukosa.
STUDI KINETIKA DAN ISOTERM ADSORPSI TIMBAL(II) PADA KULIT JENGKOL (Pithecellobium jiringa) TERAKTIVASI
Authors: WARDANI GATUT ARI , WULANDARI WINDA TRISNA 
Published: April 2018

Penggunaan limbah kulit jengkol untuk mengadsorpsi ion timbal(II) telah berhasil dilakukan. Kulit jengkol yang digunakan merupakan limbah dari salah satu pasar tradisional di Kota Tasikmalaya. Kulit jengkol diaktivasi terlebih dahulu menggunakan asam nitrat sebelum digunakan sebagai adsorben. Waktu optimum yang dibutuhkan kulit jengkol untuk mengadsorpsi ion timbal(II) adalah 30 menit dengan persen ion teradsorpsi sebesar 60,6936%. Kinetika adsorpsi timbal(II) pada kulit jengkol mengikuti model kinetika pseudo dua Ho dengan nilai R2 sebesar 0,9954 dan nilai k sebesar 1,9843 menit-1. Isoterm adsorpsi dari timbal(II) pada kulit jengkol mengikuti model adsorpsi Freunlich dengan nilai R2 sebesar 0,9797 dan kapasitas adsorpsi sebanyak 0,5537 mg/gram.
Effects of 8-Week Thera-Band Training on Spike Speed, Jump Height and Speed of Upper Limb Performance of Young Female Volleyball Players
Authors: Agopyan Ani , Ozbar Nurper , Ozdemir Seda Nur 
Published: April 2018

ABSTRACT: Introduction and objectives: Elastic resistance has been commonly used in the therapeutic and fitness setting. However, the effects of a strength training program using elastic resistance exercises to the explosive power and spike speed, which are very important elements for successful volleyball practice, has not been clearly demonstrated. Therefore, the aim of this study was to establish the effects of 8-week Thera-Band training protocols on the development of spike speed, counter movement jump (CMJ) height, peak power and speed of upper limb performance of young female volleyball players. Methods: The participants consists of 20 competitive female volleyball players who regularly train at the same team and aged 15-17 years (age 16.2 ± 0.7 years). All the players were tested for spike speed, CMJ height, peak power and speed of upper limb performances before and after 8-week training program. The players were divided into Thera-Band Training Group (TTG; n=10) and Control Group (CG; n=10). Both groups continued technical and tactical volleyball training together 3 days (120 min.d.-1) a week. Additionally, TTG attended Thera-Band training program through 8-week, 2 days per week and 2 sessions (60 min.d.-1). Results: The findings of the study showed significant change in CMJ height, peak power and spike speed at the end of 8-week. TTG significantly (p ≤ .001) improved CMJ height, peak power and spike speed, whereas the CG showed significant changes only CMJ height and peak power (p ≤ .05) at the end of 8-week. The effect of resistance exercises was significantly higher as compared to the control group (p < .05). Results demonstrated that the TTG players showed greater improvements in CMJ height (d = 1.31, moderate effect size), and spiking speed (d = 2.93, large effect size) performance than CG. Conclusion: It can be concluded that supervised Thera-Band training contributed development of the performance of spike speed mostly and CMJ height and peak power of lower extremities in young female volleyball players. Due to its effectiveness on muscular performance, the Thera-Band training model can be recommended to the coaches and players in additional to the regular technical training.
MODEL STOKASTIK RANTAI MARKOV EMPAT STATUS PADA PENENTUAN NILAI HIDUP PELANGGAN
Authors: Permana Dony 
Published: April 2018

Customer Lifetime Value, familiar as CLV is valuability a customer in marketing system. High CLV has a meaning that the customer will bring in a big return for a firm. CLV is determined by some factors, as retention rate, acquisition rate, some costs, product price, and interest rates. Markov Chain is one of model that used to determine CLV. In Markov Chain, a customer is assumed some state. Transition inter states are assumed Markovian. Here, we make CLV model using Markov Chain with four states. There are four type of model that have four states. Each type have different transition chart and of course have different probability transition matrix. Here, we describe every type of CLV model using Markov Chain.
Improving Senior High School Students’ Reading Comprehension through Reading Strategies Derived from Genre Based Approach
Authors: Fitrawati Fitrawati 
Published: April 2018

Penelitian ini bertujuan untuk melihat penerapan strategi-stategi membaca berdasarkan Genre Based Approach guna menigkatkan pencapaian nilai membaca siswa. penulis melaksanakan penelitian tindakan kelas dengan menerapkan strategi membaca berdasarkan konsep Genre Based Approach yang terdiri dari empat langkah yaitu building context of the text, modeling the text, joint construct of the text, dan independent construction of the text. Strategi-strategi membaca berdasarkan genre based approach diterapkan melalui tiga fase membaca yaitu, pre-reading phase, whilst reading phase, dan post reading phase. Hasil penelitian menunjukkan bahwa penerapan strategi membaca bisa memperbaiki proses belajar dan mengajar membaca. Simpulan ini bisa dilihat dari hasil tes membaca siswa yang menunjukkan peningkatan dari 12, 5% di siklus 1 ke 70, 8% di siklus 2 dan terakhir di siklus 3 menjadi 83, 3%. Penulis juga melakukan pengamatan dengan menggunakan (contreng) checklist terhadap strategi pengajaran dan keaktifan siswa. Hasil pengamatan menunjukkan hampir semua siswa suka strategi pengajaran guru dan sebagian besar dari siswa sudah aktif. Hasil angket menunjukkan 90% dari siswa tertarik dengan cara pengajaran guru dan 88% dari siswa tersebut aktif dalam belajar. Data tersebut juga diperkuat oleh informasi dari wawancara yang direkam terhadap 15 siswa pada tiap siklusnya. Berdasarkan hasil wawancara diketahui bahwa sebagian besar siswa mengatakan mereka tertarik dengan cara guru mengajar dan termotivasi membaca teks berbahasa Inggris Key words: Students’ Reading Comprehension, Genre based approach, Reading Strategies Derived from Genre Based Approach
THE DEVELOPMENT OF CULTURAL AND CHARACTER EDUCATION THROUGH BAHASA INDONESIA SUBJECT
Authors: Emidar Emidar 
Published: April 2018

PENGEMBANGAN PENDIDIKAN BUDAYA DAN KARAKTER BANGSA MELALUI PEMBELAJARAN BAHASA INDONESIASince the implementation of Curriculum 2013, the discussion on the National Character and Culture Education Program, which was started from 2011, has been seen to be decline lately. However, a deeper look at the program’s fundamentals shows that it is indeed relevant with the newly curriculum since topics on national character and culture education are inherent parts of the subject of Indonesian Language, one of compulsory subjects taught at Indonesian schools. This article shows how phases in texts-based Indonesian Language teaching and learning, which comprises of teacher modeling, group composition tasks, and individual composition tasks, are effective steps in teaching national culture and national character to learners.Keywords: National culture and character, Texts-based Bahasa Indonesia Learning and TeachingAbstrakSejak pelaksanaan Kurikulum 2013, Karakter Nasional dan Program Pendidikan Kebudayaan, yang dimulai dari 2011, telah terlihat penurunan pembahasannya akhir-akhir ini. Namun, jika dilihat lebih dalam pada fundamental program menunjukkan bahwa memang relevan dengan kurikulum baru karena topik pada pendidikan karakter nasional dan pendidikan budaya merupakan bagian yang melekat dari pelajaran Bahasa Indonesia, salah satu mata pelajaran wajib yang diajarkan di sekolah-sekolah Indonesia. Artikel ini menunjukkan bagaimana tahapan-tahapan dalam pembelajaran dan pengajaran berbasis teks-teks Bahasa Indonesia, yang terdiri dari pemodelan guru, tugas komposisi kelompok, dan tugas komposisi individu, adalah langkah-langkah yang efektif dalam mengajar kebudayaan nasional dan karakter nasional untuk peserta didik.Keywords: karakter dan budaya nasional, Bahasa Indonesia berbasis teks, belajar dan mengajar
IMPROVING STUDENTS’ READING COMPREHENSION OF DESCRIPTIVE TEXTS THROUGH COGNITIVE STRATEGY AT GRADE VII-2 OF SMPN 1 INDRA PRAJA TEMBILAHAN
Authors: Etfita Fauzul 
Published: April 2018

PERBAIKAN KEMAMPUAN SISWA DALAM MEMBACA TEKS DESKRIPTIF MELALUI STRATEGI KOGNITIF DI KELAS VII-2 DI SMPN 1 INDRA PRAJA TEMBILAHANAbstractThis study aimed at determining whether cognitive strategy can improve students' skills in writing descriptive texts, as well as the factors that influence the improvement of writing skills. This research is a classroom action research conducted in two cycles. Each cycle consists of four sessions. Each consists of a plan, action, observation, and reflection. Participants in this study were all students of grade VII-2 SMPN1 Indra Praja Tembilahan amounting to 22 students. The data were collected through: (1) observation sheets; students, teachers, teaching step (2) field notes (3) interviews, and (4) the writing test. The study found that the use of cognitive strategy can improve students' skills in writing descriptive text. The findings of this study indicate that an increase in the average value of students above the minimum completeness criteria namely 75 for English subject. The factors that influence students' skills in writing the descriptive text are (a) reading material provided to students, (b) students’ motivation, and (c) teachers’ approach toward the student. It can be concluded that the application of cognitive strategy on teaching reading descriptive text can give positive results with increasing students' skills in reading the descriptive text. AbstrakPenelitian ini bertujuan untuk mengetahui apakah cognitive strategy dapat meningkatkan keterampilan siswa dalam menulis teks descriptive, serta factor-faktor apa saja yang mempengaruhi peningkatan keterampilan menulis tersebut. Penelitian ini adalah penelitian tindakan kelas yang dilaksanakan dalam dua siklus. Setiap siklus terdiri dari empat kali pertemuan. Masing-masing terdiri dari plan, action, observation, dan reflection. Partisipan pada penelitian ini adalah seluruh siswa kelas VII-2 SMPN 1 Indra Praja Tembilahan yang berjumlah 22 siswa. Data penelitian ini dikumpulkan melalui: (1) lembar observasi; siswa, guru, langkah mengajar (2) catatan lapangan (3) wawancara, dan (4) tes menulis. Penelitian ini menemukan bahwa penggunaan cognitive strategy dapat meningkatkan keterampilan siswa dalam menulis teks descriptive. Temuan penelitian ini menunjukkan bahwa terjadi peningkatan nilai rata-rata siswa diatas kriteria ketuntasan minimal mata pelajaran bahasa inggris yaitu 75. Adapun faktor-faktor yang mempengaruhi keterampilan siswa dalam menulis teks descriptive adalah (a) bahan bacaan yang diberikan kepada siswa, (b) motivasi siswa, dan (c) pendekatan guru terhadap siswa. Maka dapat disimpulkan bahwa penerapan cognitive strategy pada pengajaran membaca teks descriptive dapat memberikan hasil yang positif dengan meningkatnya keterampilan siswa dalam membaca teks descriptive.Keywords: Students’ reading Comprehension of Descriptive text, cognitive strategy
THE EFFECT COLLABORATIVE WRITING AND READING HABITS TOWARD THE STUDENTS’ WRITING OF RECOUNT TEXT AT THE GRADE EIGHT OF MTsN KAMANG
Authors: Wahyuni Irna 
Published: April 2018

EFEK PEMBIASAAN MENULIS DAN MEMBACA SECARA KOLABORATIF TERHADAP KEMAMPUAN MENULIS TEKS DIARI PADA KELAS DELAPAN MTsN KAMANG AbstractThis study was conducted to see the effect of collaborative writing strategy and the students’ reading habits on their ability in writing recount text. It was a 2x2 factorial semi-experimental research. The sources of the data were the students’ composition and questioners on student’s reading habits. It was found that (1) the students taught by using collaborative writing strategy performed better than those taught by using conventional writing strategies, 2) the students getting high score on their reading habits and taught by using collaborative writing strategy fared better than those taught by using conventional writing strategy, 3) the students getting low score on their reading habits and taught by using collaborative writing strategy did not perform better than those taught by using conventional writing strategy, and 4) there was no interaction between both collaborative writing strategy and conventional writing strategy and the student’s reading habits on the students’ writing ability.Keywords: Collaborative Writing, students’ Reading Habits,students’ writing, recount text. AbstrakPenelitian ini dilakukan untuk melihat pengaruh strategi penulisan kolaboratif dan kebiasaan membaca siswa terhadap kemampuan menulis teks recount (diari). Penelitian ini merupakan semi eksperimental 2x2. Sumber data adalah komposisi dari siswa dan kuesioner tentang kebiasaan membaca siswa. Ditemukan bahwa (1) siswa yang diajar dengan menggunakan strategi penulisan kolaboratif lebih baik daripada yang diajarkan dengan menggunakan strategi penulisan konvensional, 2) siswa mendapatkan nilai tinggi pada kebiasaan membaca mereka dan diajarkan dengan menggunakan strategi penulisan kolaboratif yang lebih baik daripada yang diajarkan menggunakan strategi penulisan konvensional, 3) siswa mendapatkan skor rendah pada kebiasaan membaca mereka dan diajarkan dengan menggunakan strategi penulisan kolaboratif tidak berkinerja lebih baik daripada yang diajarkan dengan menggunakan strategi penulisan konvensional, dan 4) tidak ada interaksi antara strategi penulisan kolaboratif dan konvensional dan kebiasaan membaca terhadap kemampuan menulis siswa.Kata Kunci: Collaborative Writing, students’ Reading Habits, students’ writing, recount text.
PENERAPAN MODEL PEMBELAJARAN PETA PIKIRAN UNTUK MENINGKATKAN KEMAMPUAN MENULIS CERPEN ANAK BERBASIS KARAKTER MAHASISWA PENDIDIKAN BAHASA DAN SASTRA INDONESIA UNIMED
Authors: . Mursini 
Published: April 2018

The research was motivated by the success of the Children's Literaturecourse. During this time students taking courses in children's literature lessinterested in writing children's stories, because they think children's literature isnot interesting. The use of a less appropriate learning model is very influential inteaching and learning smooth and therefore can not meet the Unimed passingstandards specified in Children's Literature Lecture Events Unit. Lecturers whoteach the exact learning model is expected to improve the ability of students to writea short story based on the character of the child. Many models can be applied in thelearning process, one of which is a model of learning Mind Map. Learning isproving an increase in the ability of students to write a short story based on thecharacter of the child's learning model implemented Mind Maps. Analysis of thedata used is descriptive analysis that describes the direction of change, improvementchanges, and understanding of concepts. The results of this study began beforeimplementing the learning cycle that initial test results with an average value of69.3. After the first cycle of the pretest is then performed by applying learningmodels with Mind Maps average value of 84.7. These results are considered to beless satisfactory then continue the cycle II conducted by applying the model oflearning Mind Map with the average value of 91.8 were categorized as verycompetent. Furthermore concluded that the model of learning Mind Map canenhance the ability to write short stories character based child student in theDepartment of Indonesian.
Pengembangan Program Pendidikan Anak Usia Dini (PAUD): Peran Pemberdayaan Kesejahteraan Keluarga Dalam Pos PAUD
Authors: Tedjawati J.M 
Published: April 2018

The purpose of this research is to find informataion and data about: 1) Post implementation of the Post Early Childhood Education (Pos PAUD) in the community environment that includes characteristics of students, teachers, and administrators, the process of activities, evaluation and coaching; 2) PKK role in post implementation of the Post ECE; and 3) Obstacles and problems faced in the implementation of ECE services and attempt what can be done to overcome them. The methodology used is qualitative research, with the scope of this research is the implementation of ECE programs and the role of PKK Limapuluh Koto district, Gorontalo district, and Gowa district. The result showed that: 1) Post implementation of the region have implemented ECE integrated with IHC (Posyandu) and BKB activities; 2) the PKK has been carrying out its duties in cooperation with IHC (Posyandu)/ PHC (Puskesmas) and BKB, according to the ECE directorate hopes to help early childhood development, and 3) Obstacles found from the implementation of ECE, among others: (a) Lack of cadres and low educational cadres held; (b) Lack of mastery of the science education of the cadres held; (c) Lack of funds for the purchase of APE; (d) Limitations of space for games; and (e) Evaluation in ECE (PAUD) Programs. To minimalis of the obstaclce has been done by: 1) moving class; 2) using symple educational facilities with reuseable material; and 3) giving opportunity to the ECE cader to continue studying or following ECE training programe.Â ABSTRAKTujuan penelitian ini dimaksudkan untuk memperoleh data dan informasi tentang: 1) penyelenggaraan Pos PAUD di lingkungan masyarakat; 2) peran PKK dalam penyelenggaraan Pos PAUD; dan 3) hambatan dan upaya yang dilakukan. Metodologi yang digunakan adalah penelitian kualitataif, dengan lingkup penelitian pelaksanaan program Pos PAUD dan peran PKK di Kabupaten Limapuluh Koto, Kabupaten Gorontalo, dan Kabupaten Gowa. Hasil penelitian menunjukkan bahwa: 1) Pelaksanaan Pos PAUD di tiga kabupaten sudah diselenggarakan berintegrasi dengan kegiatan Posyandu dan BKB; 2) PKK telah bekerjasama dengan Posyandu/Puskesmas dan BKB sesuai dengan harapan Direktorat PAUD dalam menumbuh kembangkan anak usia dini; dan 3) Hambatan yang ditemukan antara lain masih terbatasnya: (a) tenaga kader dan masih rendahnya pendidikan kader, (b) penguasaan ilmu pendidikan para kader, (c) dana untuk pembelian alat permainan (PAUD), (c) ruang untuk bermain, dan (d) evaluasi program PAUD. Upaya yang dilakukan antara lain dengan cara: 1) menggunakan tempat kegiatan secara bergiliran; 2) menggunakan alat bantu mengajar dengan bahan sederhana; dan 3) memberikan kesempatan pada kader PAUD untuk mengikuti pelatihan PAUD.