bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Scaffolding Approach to Enhance Senior High School Student’s Statistical Literacy Ability
Authors: Murod R R , Priatna N , Martadiputra B A P 
Published: June 2019

AbstractThis research aimed to analyze the enhancement of senior high school student’s statistical literacy ability (SLA) through teaching with scaffolding and direct approach. This research used a quasi-experimental design with pre-test post-test control group. This research held in two classes from XI MIIA classes in a state high school in Bandung. In this study there are two groups: experimental and control group. The experimental group consists of 33 students who learn mathematics by scaffolding approach, while the control group consists of 34 students, learning mathematics by direct approach. The main result obtain are: (1) the enhancement of student’s SLA who learn mathematics using scaffolding approach higher than student who learn mathematics using direct approach viewed from the whole students and all student’s ability level based on statistical prior knowledge, (2) there is no significant interaction effect between teaching approaches and ability level based on statistical prior knowledge in enhancing student’s SLA. (3) the enhancement’s quality of student’s SLA who learn mathematics using scaffolding approach are in the medium category while student who learn mathematics using direct approach are in the low category viewed from the whole students and all student’s ability level based on statistical prior knowledge.
Science Learning for Students with Visually Impaired: A Literature Review
Authors: Ediyanto  , Kawai N 
Published: June 2019

AbstractScience learning should be accessible for all learners including students with visually impaired (VI). Students with VI apparently have the same cognitive abilities range and can master higher-order science concept as well. The purpose of this study is to explain that students with VI can learn science well if there is the right learning support tool by in-depth literature review. This in-depth literature review uses the following steps: selection of the articles, analysis the studies and categorization of the articles. A total of seventeen journal articles from the year of 2009-2018 written in English on the topic of science learning for students with VI that divided based on how do the students with VI learn and teaching and learning science to students with VI. This literature was collected via the ERIC database and the Google Scholar website. Based on this literature reviews, students with VI can learn science well if there is a proper support tool for them to learn. If the teachers are able to apply the right learning model and are supported with good facilities such as orientation and movement, tactile and kinesthetic learning, auditory learning and accommodations, and assistive technology, it is possible that students with VI will be able to learn about science very well.
Growth Pattern The Second Generation of Marine Fish Larvae Mangrove Red Snapper Lutjanus argentimaculatus (Forsskål, 1775)
Authors: Melianawati R , Gunawan  , Slamet B 
Published: June 2019

Abstract
Mangrove red snapper Lutjanus argentimaculatus is a high economically value of snapper. Growth is important biological parameters during larvae stage. The growth of the second generation (F-2) of cultivated L. argentimaculatus is important to be evaluated as part of cultivation success. This study was conducted to determine the growth pattern of L. argentimaculatus F-2 during larval to juveniles stage. Larval rearing was done in hatchery. Larvae were fed zooplankton rotifers Brachionus rotundiformis and Artemia, also micro pelet as the artificial feed. Microscopic measurement on larval samples were performed periodically every 5 days from 5 to 40 days old larvae, by using 10 larval samples each time. The biological parameters of larvae were total length, standard length, dorsal spine length, ventral spine length, anal spine length and body weight. The results of this study indicated that the growth of mangrove red snapper larvae took place for 35-40 days to metamorphosis become juveniles. The growth pattern on all parameters was exponential. The larval total length has a positive correlation to its body weight with correlation value of 0.99. Larvae had certain characteric growth during metamorphosis stage. Mangrove red snapper L. argentimaculatus F-2 had a similar growth pattern with those of larvae F-1.
Tannin Identification of 4 Species Pterydophyta from Baluran National Park
Authors: Sri Sulasmi Eko , Saptasari Murni , Mawaddah Kuni , Ama Zulfia Firda 
Published: June 2019

Abstract
Tannins are one polyphenol antioxidants which have higher molecular weight and having two ring aromatic group containing -OH. Antioxidant polyphenols in plants are potentially beneficial to human health as antibacterial, astringent, antidiarrheal, and antioxidant. The aim of this study was to identify tannins from 4 Pterydophyta species from Baluran National Park. This type of research is qualitative. The research sample consisted of rhizom and frond extracts of Pseudocyclosorus ochthodes, Dyopteris hirtipes, Phymatodes sp., and Pteris vittata. The extraction process was carried out using maceration method using 96% methanol and phytochemical screening was tested followed by TLC test. The results showed all samples were positive tannins and their Rf range were 0.62-0.86.
Embryogenesis Callus Induction of Carica pubescens Using Divine Smoke Particulates Containing Amino Acids
Authors: Shinta  , Effendi S R N , Rofiqoh I 
Published: June 2019

Abstract

Carica pubescens is one of plants that can live in the highlands which has a potential as medicinal plant to treat many diseases. The plant propagation is still done conventionally. Embryogenic callus culture is the alternative. The success of callus culture depends on the role of auxin growth regulator (2,4-D) and Amino Acids. The aim of this study is to determine the effet of amino acids through Divine smoke particulation to the induction of embryogenesis callus carica pubescens. This research is an experimental study with Complete Randomized Design (CRD) method. It has 7 treatments consist of control and the Amino Acids (Threonine, Tryptophan, Serine, Histidine, Asparagine, and Methionine). The result of this study showed a significant effect of amino acids through Divine smoke particulation to the induction of embryogenesis callus Carica pubescens which is grown on ½ MS media + 3 mg/L of 2,4-D. Tryptophan is the fastest treatment to induce callus which is grown 24 days after planting (DAP). Serine influences to the percentage of callus area in explants is 98,8% and the fresh weight of callus 0,6733 gr. The observation of morphology and anatomy embryonic callus color is yellowish white, friable texture and has a large cell nucleus
Exercise Training Induced ERK1/2 Expression in Bone
Authors: Mahmudati N , Nurdiana H 
Published: June 2019

Abstract
Osteoporosis is bone metabolic disorder that can decrease quality of life. It is the reason why that this study on the factors on bone metabolism urgently conducted. The research was conducted to describe the role of exercise training on bone metabolism on rat ovariectomized by using cell and molecular approach. This research was purely experiment research that was carried out to prove that exercise training can increase extra cellular signal regulated kinase (ERK1/2) and it correlation with calcium. Design of the research “The Randomized Posttest only. Control Group Design”. The unit of experimental was female Sprague Dawly Rat, 2,5 months and divided in three group A) Ovariectomized (O); B) O + exercise training (ET)and C) Ovariectomized calcium supplement (CS). Exercise training as independent variable and ERK1/2 expression was dependent variable. ERK1/2 was measured by using ELISA, while and calcium level measured by using SSA. The data was analysis by using ANOVA. The result of this research showed that ERK1/2 expression of the exercise training were higher (1,861) than the control group (1,031) α 0.005 and calcium level were not different in all group. It can be concluded that exercise training can decrease ERK1/2 expression but no change on level of calcium.
The Effect of Differentiation of Hydrolysis Time towards Ethanol Levels Produced Through Ulva Lactuca Fermentation
Authors: Micelyn Amelia Ngamput Hendrika , Herrani Retno 
Published: June 2019

Abstract
Indonesia as one of the largest maritime territories in the world has potential of marine products which can be used as the alternative source of bioethanol substrates, known as macroalgae. Ulva lactuca can be used as the substrates because it contains 16.42% hemicellulose and 19.58% cellulose. The acid hydrolysis stage is required to damage the cellulose structure and break down the hemicellulose to simple materials that can be converted by microbes. The purpose of this study was to determine the effect of acid hydrolysis time on ethanol levels produced from Ulva lactuca and to determine which of the treatments can produce the highest level of ethanol. This research was an experimental research with four kinds of treatment time of acid hydrolysis: 15, 30, 45, and 60 minutes. The fermentation was done with the help of microbes isolated from bread yeast and tape yeast. The sample products were distilled and tested for the ethanol content. The data obtained were then analysed using one-way ANOVA test. The results showed that the acid hydrolysis time have a significant effect on the ethanol levels produced from Ulva lactuca. The highest ethanol level was resulted from 60 minutes hydrolysis time, which was 13.17%.
The Use of Teak Leaves (Tectonagrandis) as Alternative Plantation Media for White Oyster Mushroom (Pleurotusostreatus)
Authors: Margi Wahyuni Ignasia , Ratna Susilawati Puspita 
Published: June 2019

AbstractWhite oyster mushroom (Pleurotusostreatus) is one offavorite food in Indonesia because it contains high protein. The farmer uses sawdust as plantation media to supply white oyster mushroom nutrition because it contains lignin and cellulose. Teak leaves potentially use as plantation media because it contains lignin and cellulose. The aim of this research was to know the ability of teak leaves as an alternative plantation media. This research used 5 treatments of sawdust and teak leaves ratio K = 88% : 0%, P1 = 38% : 50%, P2 = 28% : 60%, P3 = 18% : 70%, P4 = 8% : 80%. The same ingredients in each baglog were 2% chalk, 10% bran and 60% water. Parameters used in this research were the growth rate of mycelium, the number of fruit body, fresh weight, dry weight, and water content. Data were analyzed statically. The result showed the P4 treatment with 80% of teak leaves in planted media can give an optimal growth rate of mycelium. The added of teak leaves also showed the insignificant result for the tested parameters if compared with the sawdust. It means that teak leaves can be used as alternative plantation media for white oyster mushroom.
Instructional techniques’ teacher’s questions in the presenting stage of project-based learning to improve students’ concept map scores
Authors: Wahyu Kumala Dewi Akta , Widoretno Sri , Dwiastuti Sri , Sajidan  , Muzzazinah  
Published: June 2019

AbstractThe study aims to improve students’ concept maps scores through the implementation of instructional techniques’ teacher’s questions in the presenting stage of project-based learning (PjBL). The research is Classroom Action Research with 3 cycles, procedures of the research are: lesson plan, implementation of action activities, observation, reflection and construct of expert concept map. The participants were 35 students of class X high school. Percentage of students’ concept map scores calculated based on Novak and Gowin. Validation test use triangulation method, includes: verification of concept map scores suitability and documentation based on concept map expert and interview. Data analysis with qualitative descriptive by reducing, presenting data and drawing conclusions based on complete concept map data. The results showed that the teacher’s questions as instructional techniques’ in the presenting stage of project-based learning commonly improve scores of students’ concept map, but each component of the concept map has a variation percentage.
The Problem-Solving Skills of Senior High School Students on Biology in Temanggung
Authors: Lestari A B , Djukri  
Published: June 2019

Abstract
The study aimed to determine the level of Senior High school students’ problem-solving skills and to identify students’ problem-solving skills based on gender. This study was a descriptive study by using survey method. The population of this study was all of the eleventh-grade students from mathematics and natural science class in SMA N 1 Temanggung, SMA N 3 Temanggung, and SMA N 1 Pringsurat, with 191 students as the sample. The sampling technique was cluster sampling. Data collection was conducted by providing a question in the form of problem-solving essays. The score category level to analyze student’s problem-solving skills level and inferential statistics with independent sample t-test to analyze problem-solving skills based on gender. The result of the study showed that (1) the problem-solving skills level of Senior High school students in Temanggung mostly in the moderate category, (2) there is a significant difference of problem-solving skills in students based on gender. Female students have higher problem-solving skills than male students.
The Relationship between Logical-Thinking Ability and Science Achievement of Middle School Students
Authors: Riyanti Henni , Suciati  , Karyanto Puguh 
Published: June 2019

Abstract
The students’ science achievement is one of the educational problems that need to be considered. Factors that can influence students’ science achievement are important to investigate in order to design science learning that is appropriate to students’ characteristics in order to support the improvement of students’ science achievement. Therefore, this study aims to identify the relationship between logical-thinking ability and students’ science achievement. Sampling is done by using a random sampling technique. The sample used in this study were 33 middle school students grade VIII. The research data was collected using tests and observations, which were then analyzed using quantitative descriptive techniques with SPSS 21. The results obtained Pearson correlation values is 0.266 and significance value is 0.135 (Sig.> 0.05), which means that there is an insignificant relationship between logical-thinking ability and students’ science achievement.
The use of Brain Based Learning Model in classroom
Authors: Sari Rahmatin Lia , Suyanto Slamet 
Published: June 2019

Abstract
This study examined the effects of the brain based learning model to the student’s achievement on biology class. Its held on the second grade students of SMP Negeri 7 Mataram. Using the pre-test and post-test group design, two class were divided into two groups. The brain based learning model were apply to the experimental class and other group was instructed conventionally. Each group were compete to acquire the increase of the learning’s achievement (cognitive domain). The evidence of this study based on t-test score (tcount > ttable : 3,29 > 1,99), showed the different between the two groups. It can be concluded that the brain based learning model can significantly affect the student’s achievement on learning biology for the second grade students of SMP Negeri 7 Mataram.
Instructional Technique Question Application in Stage of Deciding in Project Based Learning to Increase Score Concept Map
Authors: Hardiana Nina , Widoretno Sri , Dwiastuti Sri , Sajidan  , Nurmiyati  
Published: June 2019

Abstract
The study aimed to improve the concept map score through the application of instructional techniques questions in stage of deciding the study group way of collecting data and data analysis in project based learning. The research subjects consisted of 34 high school students. The study is a Class Action Research with three cycles, including: planning to develop lesson plan and its completeness, implementation of actions, observations, and reflections. Data collection is done by observation, assessment to calculate the concept map score, interviews, and documentation. Data validation uses triangulation techniques: verification of suitability of concept map scores and documentation based on expert concept maps and interviews. Data analiyzed used qualitative descriptive conducted by data reduction, data presentation and conclusion drawing based on complete data concept map. The results of the study showed that the instructional technique of the questions in the deciding the study group the way of collecting data and data analysis stage on project based learning increased the students’ concept map score of students.
Development of instruments to improve student’pedagogical knowledge based mentoring
Authors: Nopriyeni  , Kun Prasetyo Zuhdan , Djukri  , Endri Yanto Bagus 
Published: June 2019

Abstract
This researchhad the purpose of developing measurement instruments for mastering pedagogical knowledge based on mentoring. The research method using the stages of instrument development refers to test development procedures according to Oriondo&Dallo-Antonio: (1) test design, (2) test trials, (3) determination of validity, and (4) determination of reliability.The sample used was 120 students in the even semester of 2017/2018 academic year in the university of sanatha dharma and University of ahmad dahlan, of biology education study program.Polytomous data were analyzed using Partial Credit Model using the QUEST program. The results showed that as many as 11 items of PK instruments were proven fit with the PCM model using the lowest boundary range criteria of INFIT MNSQ of 0.77 and the highest limit of 1.30, instrument reliability of 0.9 based on the estimation according to the test was high. Item difficulty index starts from 2.35 to 0.93 which means all items are in good category.The results of data analysis on validation can be concluded that the instrument product was suitable to be used as a measurement of pedagogical knowledge ability of mentoring-based must be prioritized in learning for students of biological education.
Development of An Observation Sheet Instrument to Measure Biology Teachers’ Ability of Pedagogical Content Knowledge (PCK) Application
Authors: Hapsari Noviana , Paidi  
Published: June 2019

Abstract
This research aims for making observation sheet instrument which is valid and reliable that is used to measure the ability in applying Pedagogical Content Knowledge (PCK) of biology teachers in learning process. This research categorized Design and Development Research (D & DR) by using 6 development steps according to Peffers, et al and Ellis & Levy. Steps in developing PCK observation instrument are: (1) Identify the problem; 2) Describe the objectives; 3) Design and develop the product; 4) product testing; 5) Evaluate the results of testing; and 6) Communicate the testing results. PCK observation instrument was tested on 11 biology teachers on July-August 2018, involving four raters. Face validity of the instrument involved two experts judgement. Empirical validity acquired by calculating Biserial Correlation value. Instrument reliability determined by calculating Intraclass Correlation Coefficient (ICC) value. Empirical Validity based on Biserial Correlation value shows that 18 items categorized as valid with R count > 0.602, while 10 items are not valid with R count < 0.602. Reliability of PCK observation instrument shows 0.951 for the ICC value which means the instrument has a high stability based on the agreement between raters (reliable).
Non-Curricular Strategies in the Implementation of Education for Sustainable Development in Three Prominent Green Schools in Indonesia
Authors: Karyanto Puguh 
Published: June 2019

Abstract
Non-curricular strategies have been qualitatively studied towards three leading green schools in Indonesia. These strategies have made those the three green schools reach an amazing success story in achieving national green school award from the government of Indonesia. This study follows a qualitative research paradigm. Content analysis was used to interpret the main pattern of the data resulted from the performed in depth interview upon three school principals. Evidences also collected to confirm the result of interview. According to the analysis, three patterns of strategies can be easily identified. Those the three strategies were related to character building. These non-curricular strategies were habituating Javanese culture to enhance positive ethical attitude, reinforcing student’s Islamic spiritual value to raise the respects towards nature and, strengthening student’s environmental literacy trough engaging student in research and project-based activities.
Developing Instrument to Evaluate the Technological Content Knowledge (TCK) Application of Biology’s Teacher
Authors: Pradana S P , Paidi  
Published: June 2019

Abstract
Technological Content Knowledge (TCK) is an integration of technology in a learning that based on the material that is being taught. The aim of this research is to develop observation instrument for measuring how the application of TCK of biology in Senior High School during the class. The type of this research is Design and Development Research (D&DR) that based on the development model of Peffers with the steps: 1) problem identification, 2) describe the objectives, 3) design and develop the artifact, 4) test the artifact, 5) evaluate testing result, 6) communicate the testing result. Instrument validity involved judgment from expert while empirical validity was analyzed by using biserial correlation. Instrument reliability uses inter-rater reliability and analyzed by using interclass correlation coefficient (ICC). Result of empirical validity shows that from 12 TCK evaluation items, two of them are not valid. While for the reliability, instruments that have been made are reliable with the ICC as much as 0.921.
A Survey of High School Students’ Scientific Literacy Skills in Different Gender
Authors: Rosyadah Mukti Windy , Dahlia Yuliskurniawati Irma , Ika Noviyanti Nurul , Mahanal Susriyati , Zubaidah Siti 
Published: June 2019

Abstract
Scientific literacy skills are one of the skills required by the students nowadays, especially in biology. Students should master these skills in order to be able to apply scientific knowledge to solve problems related to science. The aim of this study was to investigate male and female senior high school students’ scientific literacy skills. The current study employed a survey method. The samples of the study consisted of the eleventh graders from three public senior high schools (SMAN) in Malang: SMAN 8 Malang, SMAN 7 Malang, and SMAN 1 Malang. The research data were analysed using an independent-samples t-test. The analysis result showed that there was a significant difference between male and female students’ scientific literacy skills. Female students tend to perform better in scientific literacy skills than male students (p = 0.002). Around 2.33% of the male students were on level 0, 23.26% on level 1, 51.16% on level 2, and 23.26% on level 3. On the other hand, 4.05 % of the female students were found on level 1, 56.76 % on level 2, and 39.19% on level 3. This condition suggests that an innovative learning to empower students’ scientific literacy skills needs to be introduced to biology learning.