bluuebunny/crossref_metadata_2025 huggingface dataset:
Unexpected intracellular biodegradation and recrystallization of gold nanoparticles
Authors: Balfourier Alice , Luciani Nathalie , Wang Guillaume , Lelong Gerald , Ersen Ovidiu , Khelfa Abdelali , Alloyeau Damien , Gazeau Florence , Carn Florent
Published: December 2019

Gold nanoparticles are used in an expanding spectrum of biomedical applications. However, little is known about their long-term fate in the organism as it is generally admitted that the inertness of gold nanoparticles prevents their biodegradation. In this work, the biotransformations of gold nanoparticles captured by primary fibroblasts were monitored during up to 6 mo. The combination of electron microscopy imaging and transcriptomics study reveals an unexpected 2-step process of biotransformation. First, there is the degradation of gold nanoparticles, with faster disappearance of the smallest size. This degradation is mediated by NADPH oxidase that produces highly oxidizing reactive oxygen species in the lysosome combined with a cell-protective expression of the nuclear factor, erythroid 2. Second, a gold recrystallization process generates biomineralized nanostructures consisting of 2.5-nm crystalline particles self-assembled into nanoleaves. Metallothioneins are strongly suspected to participate in buildings blocks biomineralization that self-assembles in a process that could be affected by a chelating agent. These degradation products are similar to aurosomes structures revealed 50 y ago in vivo after gold salt therapy. Overall, we bring to light steps in the lifecycle of gold nanoparticles in which cellular pathways are partially shared with ionic gold, revealing a common gold metabolism.
Tone-induced split in stop category mapping by Korean learners of Mandarin Chinese
Authors: Lee-Kim Sang-Im
Published: December 2019

The present study reports a novel case where a simple one-to-one category mapping may develop into a systematic one-to-two mapping over the course of second language acquisition. We examined the split in category mapping of the Mandarin unaspirated stops conditioned by tone by Korean-speaking learners of Mandarin Chinese (e.g. Mandarin /ta35/ to Korean lenis [ta] vs. Mandarin /ta55/ to Korean fortis [t’a]). Korean L2 learners and naïve listeners participated in identification tasks in whichf0contours of Mandarin words containing unaspirated stops with short-lag VOTs were digitally manipulated. In word-initial position, learners showed a near-categorical perception from lenis to fortis asf0increased, while most stimuli were identified as fortis by naïve listeners. The effect off0was much smaller in word-medial position, but the group difference remained the same, confirming the two groups’ differential use of phonetic cues for stop identification. Taken together, a substantial reorganization of perceptual cues, namely the promotion off0concurrent with significant underweighting of VOT cues, seems to have taken place during L2 acquisition. The findings were discussed with reference to PAM-L2 whereby the knowledge of the L2 phonological system along with particular phonetic properties of the L2 sounds may have driven a perceptual regrouping of the L2 stop categories.
The influence of a high aluminium addition on the strength and impact behaviour of hot-rolled Nb containing steels
Authors: Mintz Barrie , Qaban Abdullah , Bendke Pritej , Naher Sumsun
Published: December 2019

An addition of 0.3 wt-% Al has been made to a Nb containing 0.1 wt-% C, 1.4 wt-% Mn steel in an attempt to improve its impact behaviour on hot rolling to 15 mm thick plate; the intention being to replace some of the specifications that currently can only be achieved by the more expensive methods of control rolling or normalising. Previous work had shown that a 0.2 wt-% Al addition to a hot-rolled plain C–Mn steel resulted in the impact transition temperature decreasing by 40°C with no significant change in strength making such a proposition possible. Unfortunately, the coarse austenite grain size of the hot-rolled Nb containing steel resulted on transformation in colonies of lower transformation products and Widmanstätten ferrite forming in the ferrite/pearlite microstructure resulting in poor impact behaviour. Reducing the cooling rate by working with thicker plate, 30 mm, led to little change in the mechanical behaviour on hot rolling. In contrast, on control rolling, the finer-grained steels which were virtually free of these lower transformation products showed a small benefit from the high Al addition even when Nb was present, particularly for the slower cooling rate, the 27J impact transition temperature decreasing by ∼20°C together with a small increase in yield strength. Further work is suggested to decrease the hardenability so that the original aim might be achieved.
Inhibitory effect of isomaltodextrin on tyrosine metabolite production in rat gut microbiota
Authors: Takagaki Ryodai , Yoshizane Chiyo , Ishida Yuki , Sakurai Takeo , Taniguchi Yoshifumi , Watanabe Hikaru , Mitsuzumi Hitoshi , Ushio Shimpei , Morita Hidetoshi
Published: December 2019

We examined the effect of isomaltodextrin (IMD), a soluble dietary fiber, on production of putrefactive products by intestinal bacteria using a tyrosine load test to measure phenol production in IMD-treated rats. We observed a significant increase in phenol and p-cresol concentrations in rats administered with only tyrosine, but not for rats co-administered tyrosine and IMD. To elucidate the mechanism of this effect, we analyzed the intestinal microbiota in each group and found that although IMD had no direct effect on the proportion of bacteria known to produce phenols, it did alter the balance of intestinal microbiota. The results suggested that changes in the intestinal microbiota composition reduced the metabolic capacity for tyrosine and in turn suppressed production of phenol or p-cresol, putrefactive products in the intestine.
Cross‐sectional associations between the diversity of sport activities and the type of low back pain in adulthood
Authors: Kaartinen Sara , Aaltonen Sari , Korhonen Tellervo , Rottensteiner Mirva , Kujala Urho M. , Kaprio Jaakko
Published: December 2019

Leisure‐time physical activity has a complex relationship with low back pain (LBP). Thus, we aimed to investigate whether the diversity of sport activities is associated with the type of LBP. In the FinnTwin16 study, 4246 (55% females) Finnish twins at mean age 34.1 years replied to a health behaviour survey in 2010–2012. Based on the participation in different sport activities, we created two measures of diversity: quantity (i.e. the number of sport activities: 1, 2, 3, 4 and ≥5) and quality (i.e. the type of sport activity: endurance, strength, body care, etc.). Based on the frequency, duration and type of LBP, we created three groups: no history of LBP lasting more than one day, radiating LBP and non‐radiating LBP. The associations between the quantity and quality of sport activities and the type of LBP were investigated with logistic regression analyses. Participation in ≥5 sport activities associated with less radiating and non‐radiating LBP in analyses pooled across sex (odds ratio 0.46, 95% CI 0.30–0.69 and 0.66, 0.44–0.99, respectively). However, the associations attenuated after adjusting for several confounders. Participation in endurance sports was associated with less radiating (0.58, 0.43–0.76) and non‐radiating (0.60, 0.44–0.81) LBP, whereas strength sports and body care only with less radiating LBP (0.76, 0.58–1.00 and 0.26, 0.09–0.74, respectively) adjusted for all sport types. On a sport‐specific level, running and cycling were associated with less radiating and non‐radiating LBP. In adulthood, the diversity of sport activities, particularly participation in endurance sports, may be associated with less radiating and non‐radiating LBP.
Numerical and Experimental Study of Thermal Response of an Electrified Nickel Wire
Authors: Lubis N. F. , Widartiningsih P. M. , Viridi S.
Published: December 2019

An electrified nickel wire can produce heat. The heat is transferred to the environment around the wire radiation. However, the temperature produced by the wire will differ depending on the number of voltages supplied by the power source. Here, we do an experiment to measure the temperature of stand-up wire at each voltage of 4.5 V, 6.0 V, 7.5 V, 9.0 V, and 12 V. As a comparison, numerical measurements are done by JavaScript program. We show that the highest temperature of the wire approaches 314 K at 12 V. To equalize the temperature in both methods, the numerical scale factor of time and current in numerical measurements are changed according to the voltage. As a result, temperatures produced in both methods have minimal gap difference with error percentage below 0.5%. In conclusion, the experiment results were used to determine the scaling parameters to approach the ideal thermal response curve in actual values.
Development of The Android-Based Interactive Physics Mobile Learning Media (IPMLM) to Improve Higher Order Thinking Skills (HOTS) of Senior High School Students
Authors: Elvi Dasilva Beatrix , Suparno
Published: December 2019

This study aims to find out: 1) generating useful android aplication IPMLM in termodynamic material on physics, 2) examining the impact of IPMLM toward students’ higher order thinking skill (HOTS). In order to find out the answer, the researcher used research and development method in 4-D model (defining, designing, developing and disseminating). The IPMLM application was assessed by media experts and physics expert. The limited test stage was conducted in SMAN 1 Kota Kupang with 32 students of 11th grade science program. Subjects were chosen by purposive sampling technique. The extensive test stage was conducted in SMAN 2 Kota Kupang, SMAN 3 Kota Kupang and SMAN 5 Kota Kupang with 210 students of 11th grade science program. Subjects were chosen by purposive sampling technique. The research design of extensive test was pretest-posttest control group design. Data collection was done by questionnaire and test. Instrument test to measure students’ HOTS instrument was reasoning multiple choice questions. The result shows that 1) the IPMLM application was eligible to be used in physics learning about thermodynamics, 2) using IPMLM in physics learning increased effectively the capability on HOTS aspect.
Synthesis of the Cognitive Aspects’ Science Literacy and Higher Order Thinking Skills (HOTS) in Chapter Momentum and Impulse
Authors: Putranta Himawan , Supahar
Published: December 2019

This paper is based on the background of the problem in the form of low order thinking skills and science literacy in students. The science literacy that students have has an important role in developing higher-order thinking skills (HOTS) in solving problems in everyday life. The method used in this research is descriptive qualitative research method with literature studies in the form of primary sources (books) and secondary sources (scientific articles). The results of this study obtained a synthesis of cognitive aspects of science literacy and HOTS in momentum and impulses used as a guide in developing overall learning devices combined with physical problems that occur in real life experienced by students in a realistic manner. In addition, the synthesis of the cognitive aspects of science literacy is in the form of several important aspects, such as scientific knowledge and scientific competence. The main aspects in HOTS are discussed in the form of analysis, evaluate, and create. These aspects must be actualized by students in their lives in the present and in the future that are useful for mutual benefit.
Developing physics test instrument in the context of ocean literacy
Authors: Haryadi Santoso Purwoko , Mutmainna
Published: December 2019

Ocean literacy is an understanding that should be integrated into physics learning for the coastal area. Ocean issues will help students understanding physics concepts. Indonesian government through Kemendikbud and Kemenko Maritim have been developing ocean-relate learning. To support government effort improving ocean literate-education system, it needs a sustainable process. Author choose to develop physics test instrument as one step which addresses the ocean literacy to the Indonesian curriculum. This article presents task analysis of kinematics and dynamics concepts to the 7 essential principles and 24 fundamental concepts of ocean literacy. The results will be described with the matrices relating those. It will be a framework aligning 2013 curriculum to the principles of ocean literacy. Some developed item tests with ocean issues will be described in the end of section.
Developing of Bloomian HOTS Physics Test: Content and Construct Validation of The PhysTeBloHOTS
Authors: Istiyono Edi , Sunu Brams Dwandaru Wipsar , Muthmainah
Published: December 2019

Higher order thinking skills (HOTS) of the students in physics learning need to be assessed. There are several kinds of HOTS, one of which is Bloomian HOTS. The Bloomian HOTS Physics test for Senior High School Students called PhysTeBloHOTS has been developed to assess students’ HOTS. The purpose of this study is to prove validation of the PhysTeBloHOTS. There were two steps of validation: proving the content validity and construct validity. The content validity analysis was conducted using Aiken’s V and the analysis of construct validation was conducted using exploratory factor analysis (EFA). The PhysTeBloHOTS consisted of four test sets: A, B, C, and D. The each of test set consists of 40 items with 8 anchor items. For the test trial, PhysTeBloHOTS were administrated to 301 Senior High School Students in Yogyakarta. The result of the study shows that PhysTeBloHOTS is valid according to the content and construct validity. The PhysTeBloHOTS items are valid according to the expert judgments with Aiken’s V index ranged from 0.83 to 0.97, respectively. The result of EFA and CFA show that PhysTeBloHOTS consist of three aspects: analysis, evaluate, and create.
Analysis of Students’ Critical Thinking Skills at Junior High School in Science Learning
Authors: Febri A. , Sajidan  , Sarwanto
Published: December 2019

Critical thinking skills is one of students’ skills needed to face globalization in 21st century challenge. Critical thinking skills are active processes to thinking deeply due to topic or materials through meaningful way. The indicators of critical thinking skills are thinking about certain topic in depth, asking questions, and finding relevant information. This study aimed to analyze students’ critical thinking skills at junior high school in science learning. Instruments used in this study were created according to Facione indicators of critical thinking skills namely to interpret, to analyze, to evaluate, to infer, to explain, and to do self-control. Subjects in this study were 256 students of seventh grade at junior high school in Karanganyar. Purposive sampling were used as sampling technique. Results showed that two indicators have gained good category namely to analyze that was 62% and to evaluate that was 70%; while four other indicators have gained sufficient category namely to interpret that was 35%, to infer that was 49%, to explain that was 40%, and to do self-control that was 46%. The conclusion of this study was there were two indicators of students’ critical thinking skills gained good category and four indicators of students’ critical thinking skills gained sufficient category. Thus proper follow-up of this study is needed to explore ways to improve the achievements of each indicators in students’ critical thinking skills.
Analysis of Students’ Misconception Based on the Use of Learning Objectives in Classification of Materials and Their Properties
Authors: Cahyanto M. A. S. , Ashadi  , Saputro S.
Published: December 2019

The objectives of this study are to: (1) know the percentage of students’ misconception on materials and their properties in terms of the use of learning objectives at junior high school, (2) know the flaws of learning objectives that lead to students’ misconception and (3) be the supportive material from learning objectives. This study was carried out using descriptive-quantitative research method. The technique of collecting data was done by interview. The conclusions of this study were: (1) percentage of student’ level of understanding of classification of material and their properties was 38.43% for distinguishing elements, compounds, and mixtures indicator; 52.31% for distinguishing homogeneous and heterogeneous mixtures indicator and 48.71% for distinguishing physical or chemical changes indicator, (2) the components in the book were not complete because there was no indicator of competency achievement and (3) there is a conceptual error in writing hydrogen elements as a semilogical element, some confusing sentences lead to different interpretations and less depth in material presentation of learning objectives lead to students’ misconception as students’ concepts different from experts from material and language content.
Identification and antioxidant activity of phenolic compound from leaves of Scurrula parasitica L
Authors: Atun Sri , Nur Innayati Asri , Herlambang HW , Handayani Sri
Published: December 2019

Scurrula parasitica L is one of the Loranthus plant species which is an herbal plant recorded in ancient documents and widely used as traditional medicine. The purpose of this study was to identify phenolic compounds and to test the antioxidant activity of compounds from Scurrula parasitica L. leaf extract. The research method was carried out by extracting dried powder of S. parasitica leaves with ethanol. Ethanol extract was partitioned using n-hexane, chloroform, and ethyl acetate solvents respectively. The ethyl acetate fraction obtained is then concentrated to form deposits. The precipitate obtained was separated and washed using n-hexane and a mixture of ethyl acetate: acetone (1: 1) in sequence. The precipitate obtained is then purified by recrystallization with ethanol as solvent. The crystals obtained were tested for their purity by thin layer chromatography (TLC) and identified using UV-Vis, IR and NMR spectrophotometers. The method for testing antioxidant activity using 2, 2- diphenyl-1-picrylhydrazyl (DPPH). The results of spectroscopic identification showed that the isolation compound obtained was quercitrin (quercetin-3-O-rhamnoside). Quercitrin shows high antioxidant activity with IC50 5.00 μg / mL. Thus, S. parasitica plant is very potential as a source of natural antioxidants
Extraction of α-cellulose from Eleocharis dulcis Holocellulose using NaOH and KOH
Authors: Sunardi  , Istikowati W T , Sari D I
Published: December 2019

Cellulose is the greatest abundant and renewable biopolymer resources in world, it has been widely used in many industrial applications because of its favorable characteristics. Various cellulose resources, especially those obtained from local resources and agriculture waste, are being exploited to reduce the impact of environmental damage. This study presents an environmental friendly methods to produce cellulose from local plant, Eleocharis dulcis. E. dulcis is an aquatics plant belonging to the Cyperaceae family, mainly abundant in swampy area in South Kalimantan, Indonesia. In this study, α-cellulose were isolated from E. dulcis as a new renewable industrial resources. The sample was dewaxed using ethanol-toluene, then the free extractive sample was bleached using NaClO2 to produce holocellulose. The influence of type of alkali (NaOH and KOH) and concentration (15%; 17.5% and 20%) on the properties of α-cellulose was investigated. The Total Crystallinity Index (CrI), Lateral Order Index (LOI), Hydrogen Bond Intensity (HBI) and whiteness of α-cellulose were analysis using FTIR and CIELab color system, respectively.
The effect of problem-based learning model toward students’ conceptual understanding and verbal communication skills in reaction rate learning
Authors: Satrio Nangku Marsianus , Rohaeti Eli
Published: December 2019

This quasi-experimental study aims to determine the effect of applying Problem Based Learning (PBL) model toward students’ conceptual understanding and verbal skills in learning reaction rate materials. It is designed using posttest only control group design subjecting the students of SMAN 1 Poco Ranaka. The PBL model was applied to the experimental class while 5E Learning Cycle model was treated for the control class. The data was collected using the observation sheet of verbal communication skills, posttest of students’ conceptual understanding, and the questionnaire of students’ response to the application PBL model. The data of observation and posttest, analyzed using MANOVA, revealed the significant effect of applying PBL model toward students’ conceptual understanding and verbal communication skills with P = 0.000 < 0.05 of significance level. The percentage of contribution given by PBL model to the improvement of students’ conceptual understanding and verbal communication skills was also analyzed. The percentage of contribution of PBL model to the improvement of students’ conceptual understanding and verbal communication skills was, respectively, 22.26% and 33.17%, both with P = 0.000 < 0.05 of significance level. This shows the positive effect of applying PBL model on the two variables, though still in low and medium category of contribution. The result of questionnaire analysis using quantitative descriptive, students give positive response to the application of PBL model. Thus, it is concluded that the application of PBL model effects positively to the student’s conceptual understanding as well as verbal communication skills.
Exploration of pre-service chemistry teacher’s ability in constructing context-based content representation on electrochemistry topic
Authors: Wiyarsi A , Sutrisno H , Rohaeti E
Published: December 2019

The study aims to explore the pre-service chemistry teacher ability in constructing context-based Content Representation on Electrochemistry topic (Cb-CoRe-E). Due to the exploration of pre-service chemistry teacher ability in constructing Cb-CoRe-E, this research adopted a descriptive study with quantitative approach. A total of 20 pre-service chemistry teacher enrolled on Curriculum course were the subject of this research. The data of pre-service chemistry teacher ability in constructing Cb-CoRe-E were collected according to the document which consist a questions on pedagogical aspect. As many as 9 indicators were used as a references to be explored the pre-service chemistry teacher ability in constructing Cb-CoRe-E. The data of pre-service chemistry teacher ability were analysed according to descriptive quantitative technique by classifying the mean score obtained into five categories from very good to bad. The result of this study showed that the pre-service chemistry teacher ability in constructing Cb-CoRe-E was good. It can be concluded that pre-service chemistry teacher were ready to conducted a good chemistry learning. The pre-service chemistry teacher in the future is expected applying CoRe in every learning to promote students’chemistry meaningful learning.
The Effect of a Macromedia Flash-based Guided Inquiry on Students’ Critical Thinking Skill and Self-Regulated Learning
Authors: Jainal Srireski , Supiah Yosephine Louise Isana
Published: December 2019

This study aims to determine the effect of a macromedia flash-based guided inquiry model on students’ critical thinking skill and self-regulated learning. This study was a quasi-experiment, with a post-test only group design. The subjects were 96 eleventh-graders of divided into two groups. Fifty students in the experimental group used macromedia flash-based guided inquiry model and 46 students in the control group used direct instruction model. Data collection techniques were a test of critical thinking skill consisting seven essay questions to see students’ critical thinking skill and a questionnaire of self-regulated learning consisting 33 statements to see students’ self-regulated learning. The data were analyzed using MANOVA. The results showed that students taught with macromedia flash-based guided inquiry model have a statistically difference on their critical thinking skill and self-regulated learning at significance level 0.05 while students taught with direct instruction model showed critical thinking at lower level. In conclusion, a macromedia flash-based guided inquiry model can improve students’ critical thinking skill and students’ self-regulated learning.
Effects of use 3D visualization virtual reality to increase scientific attitudes and cognitive learning achievement
Authors: Bakar Ika Setiawati A , Sugiyarto K H , Ikhsan J
Published: December 2019

This study was conducted to analyze the effect of the use of 3D visualization media with virtual reality on the achievement of cognitive learning and scientific attitudes of students on chemical equilibrium topic. This study was a quasi-experimental with only posttest design with the subject of research in class XI of State High School of Ternate consisting of 31 students for the experimental class and 27 students for the control class. Collecting cognitive learning achievement data with test and scientific attitudes using questionnaires. The statistical analysis used was MANOVA to measure differences in cognitive learning achievement and scientific attitudes of experimental and control class students. The results showed a significant difference in cognitive learning achievement and scientific attitudes between classes using virtual 3D visualization media and discovery learning models with classes that only use discovery learning models. The implementation of practicum using 3D visualization media with virtual reality can provide opportunities to students to learn about the implementation of the practicum that they design by themselves.
Developing Chamilo-Based E-Learning in Environmental Change Material to Enhance Students’ Scientific Literacy Skills
Authors: Astriawati F. , Djukri
Published: December 2019

The main goal of learning science today is the realization of learners who are literate in science. Unfortunately, Indonesian scientific literacy skill is still low based on the assessment of OECD for three evaluation periods. Therefore this study aims to produce an electronic-based learning system in learning science using LMS Chamilo which is intended to enhance students’ scientific literacy skills. This study is research and development (R & D) using the ADDIE model. Research findings indicated that (1) the Chamilo-based e-learning was feasible to implement in biology teaching based on experts judgment with a total score of 3.83 (very good) from environmental material expert and 3.22 (good) from learning media expert; (2) the Chamilo-based e-learning was accepted very well by users with a total score of 3.78 (very good) from biology teachers and 3.36 (very good) from students; (3) the Chamilo-based e-learning was effective in enhancing students’ scientific literacy skills with n gain score of 0.74 (high criteria). Based on the results, it can be concluded that Chamilo-based e-learning is recommended to implement and to use in the biology learning process.
Estimation of type I censored exponential distribution parameters using objective bayesian and bootstrap methods (case study of chronic kidney failure patients)
Authors: Wiranto A , Kurniawan A , Fitria D A , Suliyanto  , Chamidah N
Published: December 2019

Bayesian point estimation is an estimation method based on prior selection and loss function. In Objective Bayesian estimation are chosen prior to Jeffrey and used intrinsic discrepancy loss functions based on the Kullback-Leibler divergence equation which will have a minimum effect of data on the posterior distribution. The objective Bayesian point estimator provides estimates of population parameters based solely on the assumed population distribution and data. The goal of this paper is to estimate parameters from the exponential distribution on type II censored data using the objective Bayesian and bootstrap methods. The bootstrap method is used to resampling and built a confidence intervals for parameters whhich will be estimated. The methods were applied on the life-time data of 63 patients of chronic renal failure and the initial diagnosis was non-diabetic disease with bootstrap methods using 10, 100, and 1000 times used in this study. So that the bigger bootstrap samples rendered the estimated value θ̂ will be better and the result confidence interval ranges narrower.
Locally stability analysis of the Phytoplankton-Nitrogen- Phosphate-Sediment dynamical system: A study case at Karimunjawa aquaculture system, Central Java
Authors: Triyana E , Widowati  , Putro S P
Published: December 2019

Disturbance of water environment due to organic enrichment by fish activities may result in the reduction of water quality and sediments. The relative importance of N and P limitation and released from organic sediment is still an open question. The aim of this paper is to analyze the locally asymptotic stable from a dynamical system model in the equilibrium of water ecosystem. Mathematical models are resultant of interaction among four main variables. i.e.nitrogen and phosphate concentration, phytoplankton abundance, and sediment in the water ecosystem at Menjangan Besar, Karimunjawa islands. The four variables are non-linear system differential equation that will form the dynamical system mathematical model. Local stability was determined by using Taylor series and Jacobian matrix. The system will be locally asymptotically stable if eigenvalues are negative. Numerical simulation was used to analyze the dynamic behavior of the system. From numerical simulation results base, it is concluded that equilibrium points. Because all eigenvalues of the Jacobian matrix ware negative, the dynamic system model was locally asymptotically stable.
Modeling of hypertension risk factors using local linear of additive nonparametric logistic regression
Authors: Ana E , Chamidah N , Andriani P , Lestari B
Published: December 2019

Hypertension has become a serious health problem in Indonesia because of its prevalence, however, the causative factors could not be ascertained for about ninety percent of the patients. Various studies have found several risk factors causing hypertension to be obesity, family history, stress levels, heart rate, and an unhealthy lifestyle. In this case, the variables are considered influential on hypertension through a regression curve without a specific pattern. Also, we need to describe the functional relationships between several predictor variables with binary or dichotomous response variables and need to describe locally effect of predictor variables to the response variable. Therefore, in this study, to model the case of hypertension by age, body mass index, heart rate, stress levels we use the additive nonparametric logistic regression approach based on local linear estimators. The results of the study showed that hypertension was most prevalent among respondents over 65 years of age with BMI between 25-30 kg/m2 (obesity) and normal heart rate (60-100) bpm and most of them were found to be experiencing mild stress conditions. The model obtained a classification accuracy of 95 percent (in-sample) and 89.47 percent (out-sample) with a cut off probability value of 0.4.
Modeling Poverty Percentages in the Papua Islands using Fourier Series in Nonparametric Regression Multivariable
Authors: Mariati N P A M , Budiantara I N , Ratnasari V
Published: December 2019

Nonparametric regression has high flexibility in estimating the regression curve. Estimation techniques that are quite popular in nonparametric regression are Fourier Series estimators. Fourier series are trigonometric polynomials that have flexibility, so they can adapt effectively to the local nature of data. This Fourier series estimator is generally used if the data investigated by the pattern is unknown and there is a tendency for repetitive patterns to follow the trend line. The purpose of this study is to examine Fourier Series estimates and apply to cases of poverty in the Papua Islands. The Papua Islands which consist of 2 Provinces namely Papua Province and West Papua Province. Papua Province ranked first and West Papua Province ranked second in poverty in Indonesia. Based on nonparametric regression multivariable modeling using Fourier series, this model is good. This can be seen from the value obtained by Generalized Cross Validation (GCV) = 80, 76, Mean Square Error (MSE) is 18, 31 and R2=78, 16%.
Valuation risk adjusted deposit insurance on heston model
Authors: Hariati N , Yunus M , Putri E R M
Published: December 2019

Deposit insurance is a tool to stabilize the banking system. In managing deposit insurance in Indonesia, deposit insurance agency applies the flat rate premiun system which is the same premium imposition system for each bank without taking into account the different risk levels of each bank. The implementation of the flat rate, it can still cause moral hazard which can trigger the monetary crisis. To anticipate this problem, it is necessary to design a risk adjusted premium. One of method that can be used in determining deposit insurance premium is Fourier transform. In this study, we analyzed analytical solutions to determine risk adjusted deposit insurance premiums on Heston Model by using Fourier transforms. Based on the simulation results, it was found that the amount of volatility caused the value of deposit insurance premiums getting bigger, the smaller value of interest rates so the greater value of deposit insurance premiums. The high value of deposit insurance premiums is also influenced by the value of debt obligations and dividends value.
Creation of digital risk doubles using motion capture and photogrammetry for computer-generated imagery content
Authors: Silva-Bolivar G J , Reyes Muñoz C A , Londoño-Marín S , Castro-Maldonado J J
Published: December 2019

In Colombia, the audiovisual industry has grown exponentially thanks to the policies on the orange economy, which seeks to impact the level of development in the artistic, cultural, and information and communication technologies sectors. In order to realize as a power in this sector worldwide, Colombia advances rapidly in the strengthening of the industry, venturing into the implementation of new technologies in special effects and post-production processes. In the flow of current film production, digital doubles, digital clones of the actor that allow dubbing for risky scenes, characters with particular aesthetics or actors that cannot be present in the set. The film industry has adopted in order to reduce the risks in the times of work of the actors, the reduction of the risks in the scenes of action and the decrease of the costs in the make-up and the utility. This article shows the process of developing a digital double in computer-generated imagery techniques, and how to achieve that digital realism that allows to pass, unnoticed dubbing, in order to socialize the industry knowledge and explore this type of innovations in their processes, following a sequential methodology from its conception to its conception.
Gold nanoparticles size distribution by pulsed laser varying the wavelength
Authors: Arévalo A C , Quintero J H , Rincón S A , Rodriguez J , Ospina R
Published: December 2019

In this work the influence of the wavelength variation of a pulsed laser on the size distribution of gold nanoparticles, synthesized by laser ablation in liquid medium, was determined, since this technique is the most used due to its simplicity as it is not developed under strict conditions of temperature, pressure, agitation, etc. Three different wavelengths were used: (i) 532 nm, (ii) 355 nm and (iii) 266 nm, due to equipment restrictions. The distributions and sizes of nanoparticles were studied by dynamic light scattering, scanning electron microscopy and atomic force microscopy. In addition, it is shown that the spectra of the gold region determine the chemical state of the nanoparticle. The results showed that the smallest particle size was obtained with the wavelength of 266 nm with a size of 9.6 nm, while for the other wavelengths; sizes of 55.4 nm and 77.3 nm were obtained respectively. Thus, smallest average diameter of gold nanoparticles was obtained with smallest wavelength.
Design and Realization of A Low Cost Clinometer based on ADXL345 Sensor, Ultrasonic Sensor, and Android based Smartphone
Authors: Najmurrokhman A , Kusnandar  , Komarudin U , Annas A M , Rahim R
Published: December 2019

Manually height measurement using a measuring instrument with a limited scale range can hamper the performance of building construction activities. To deal with this problem, a device is needed to be able to measure the height of the building more quickly, has a larger measuring limit, and is easy to use on the measurement of the inner building that is on a flat plane. This paper describes a prototype of clinometer using ADXL345 accelerometer sensors connected to Android-based smartphones. Other components that build this system are HC-SR04 ultrasonic sensor, HC-05 bluetooth module, and Arduino Uno microcontroller. The proposed system is able to connect with Android-based smartphones through the connection of the HC-05 bluetooth module, retrieving distance data through ultrasonic sensor readings and elevation angle data via the ADXL345 sensor, sending or receiving data from an Android smartphone to Arduino and vice versa, calculating the approximate height, and display it on the Android based smartphone. Experimental results show that applications installed in Android-based smartphone can display the results of approximate height. The proposed instrument can quickly calculate the approximate height of a building with an error percentage of 2.5 %. The maximum distance from the proposed instrument to the building is 1.75 m.
Electromyography (EMG) signal classification for wrist movement using naïve bayes classifier
Authors: Putra D S , Ihsan M A , Kuraesin A D , Mustakim  , Achmad Daengs G. S , Iswara I B A I
Published: December 2019

Electromyography (EMG) signal is an myoelectric signal in the muscle layer. It occurs caused by contraction and relaxation muscle activity. This article provide numerical study of the classifying the electromyography signal for wrist movement combined with open and grasping finger flexor. The EMG signal has recorded using a device called electromyography. It has acquired by attaching an surface electrode in the skin then the electrode was capturing the raw signal. The volunteer involved were six where each volunteer has ten datasets the EMG signal. The surface electrode are sticked in the lower arm muscle. The EMG raw signal was processed using zero-mean normalization. The feature extraction method is root mean square (rms), mean absolute value (mav), variance (var), and standard deviation (std). This EMG signal has been classified by naïve bayes classifier. Training and testing data was using 5-cross validation. The result indicates that the classification accuracy for classifying the EMG signal for wrist movement combined open finger flexor (OFF) and grasping finger flexor (GFF) is 70% and 75% respectively. Therefore, the EMG signal can be applied for identificating of muscle disorder, prostheses hand and biometric system.
An Integrated Multi Criteria Decision Making Method For Fashion Selection
Authors: Hadi Nasyuha Asyahri , Zulham  , Jang Cik Idi , Amin Muhammad , Candra Setia Sigit , Siregar Dodi
Published: December 2019

ZOOM Fashion is a business engaged in the sale of clothing, which is currently undergoing development and is in great demand in the community. In these companie, performance improvements are needed, so companies must be more careful in buying clothes to be resold in order to find out which clothes are of high quality. TOPSIS uses the principle that the chosen alternative must have the closest distance from the positive ideal solution and the longest distance from the negative ideal solution from a geometric point of view by using the distance between two points to determine the relative proximity of an alternative. this method is very well used for the completion of fashion selection. this research is expected to help in determining quality clothing in accordance with the fashion needed at this time, so that the existence of this system makes it easy to find out the needs of the community in the field of clothing.
Model of Higher Education Quality Improvement in Indonesia: Relationship between HRM and Information Technology Literacy
Authors: Susanti Santi , Natalia Van Harling Vina , Kurniawan Muh. Ardian , Rusdin  , Asdi  , Halim Perdana Kusuma Putra Aditya
Published: December 2019

The purpose of this study was to produce a model for improving lecturer performance by revitalizing the components of competence, motivation, and information technology literacy. The object of this study took a sample of 160 lecturers from various private universities in the city of Makassar whose scientific fields concentrated on informatics and computer management. The use of mediation models is done using AMOS. Results of this study also state that the high competence of lecturers has not been able to contribute significantly to the improvement of information technology literacy. Low motivation does not contribute to improving information technology literacy. Competence and motivation, as well as information technology literacy, proved to be able to help significantly in improving the performance of lecturers. Besides that, information technology literacy is not able to show its role in explaining the influence of competence and motivation on the performance of lecturers. The novelty of this research is the addition of information technology literacy components as a model to improve lecturers’ performance in Higher Education.
Simulation of Robot Arm for Diabetes Mellitus Patients
Authors: Subekti  , Budi Setiawan Aan , Hammid Abdul
Published: December 2019

Diabetes is caused by metabolic disorders. The treatment is to control blood sugar levels which can be done with non-pharmacological therapy, namely reflexology. The intensity of therapy continuously carried out will speed up the healing process of diabetes. On this basis, we simulated a robotic arm for reflexology treatment for diabetics. The robotic arm system used was five degree of freedom, which used 5 servo motors in the design. The simulation results show that σmaterial ≥ σstructure, so it can be concluded that the material used is rigid and strong to withstand the loads acting on the robot arm structure. While the magnitude of M1 servo motor torque is 2502 Nmm, M2 is 7492 Nmm, M3 is 7492 Nmm, M4 is 6934 Nmm and M5 is 4351 Nmm. In designing the robot arm, 1,2,3,4 servo motors used 8000 Nmm of torque, and 5 servo motors used 4500 Nmm of torque, so the servo motor used was safe to hold the torque on the robot arm.
A Path Analysis: Study of Correlation Between Noise Intensity and Quality of Life of Workers In Textile Industry
Authors: Sumardiyono  , Probandari Ari , Hartono  , Wijayanti Reni
Published: December 2019

Noise intensity is a dangerous stressor in the working environment of the textile industry that can have an impact on the decrease in hearing loss of workers. The decrease in hearing loss will disrupt the workers’ activities in their daily work. Textile industry workers exposed to noise while working every day will potentially be affected by a decrease in hearing loss. Activities that are constantly exposed to noise intensity can also result in a decrease in the quality of workers’ life. This research was conducted to prove the correlation between noise intensity and quality of life through hearing loss using path analysis. Path analysis can explain the correlation between variables indirectly. The research method was used namely analytic survey with the cross-sectional design. The population of the study was workers in 5 textile industries in Central Java Province, Indonesia. The number of subjects was determined based on purposive sampling, each industry was 40 people thus, and the total number was 200 people. The correlation was included independent variables namely noise intensity, work period and age; the mediator variable was a loss of hearing loss, and the dependent variable was quality of life. Path analysis was used as the statistical analysis with Stata 13 software at a significance level of 5%. The research results showed that there was a direct correlation between hearing loss and decreased the quality of life of workers (p = 0.026). The decrease in the quality of workers’ life was also influenced indirectly by noise intensity (p = 0.000) and age (0.012). The working period did not affect the decrease in quality of life (p = 0.210). Increased noise intensity can reduce hearing loss that decreases the quality of life.
The Work Posture Assessment Towards Musculoskeletal Disorders in Coloring Activities of Indonesian Hand Drawn Batik
Authors: Siswiyanti  , Rusnoto  , Luthfianto Saufik , Nurjanah  , Zainudin Arif
Published: December 2019

This study aims to determine how big the level of musculoskeletal complaints is, the fatigue and increase productivity of batik maker after body posture changes in coloring (dyeing) hand drawn batik cloth uses a machine in standing body posture. This study used Nordic Body Map musculoskeletal measurements and subjective fatigue, the research method used the experimental design of the same subject, namely the design that is variable observation carried out several times, the control subject also applied as the experimental subject. The results of processing data on 20 batik makers were concluded that the percentage of pain in the coloring activity (manual dyeing) by squatting and stooping body posture with a mean was about 65.18 ± 6.45%. The percentage of pain in the machine dyeing activity for standing posture was 50.73 ± 71.73%. The average difference between the level of musculoskeletal complaints on batik staining with squatting/stooping body posture compared to the staining of the standing body posture was 16.80 or a decrease of 19.34%. The results of subjective fatigue questionnaire obtained a decrease in fatigue of manual dyeing activity with dipping machines, namely an activity attenuation decrease from 90% to 62%, attenuation of motivation from 88% to 58%, physical attenuation from 78% to 64%. The average difference between the degree of fatigue in batik staining and stooping body posture compared to the staining of the body posture is 25, 25 or there is a decrease in fatigue of 26.69%. The work posture improvement of standing position on batik dyeing machine that is designed using 3 roll (cylinders) which has a driving power of 0.190 HP, with the working concept of a sheet of fabric wrapped around a cylinder with a 72.5 rpm rotation, frame material made of elbow iron painted and cylinders made of data a the PVC pipe to avoid corrosion could actually increase work productivity by 0, 0190 or 29.19%.
Compressive Strength Analysis On Geopolymer Paving By Using Waste Substitution Of Carbide Waste And Fly Ash
Authors: Qomaruddin Mochammad , Ay Lie Han , Hidayat Arif , Sudarno  , Kustirini Anik
Published: December 2019

The method to make paving sample in this research was done by mixing fly ash, carbide waste, sand, and alkali activator in the form of sodium silicate (Na2SiO3), 8M and 12M sodium hydroxide (NaOH) with ratio 1 : 2 as the binder, then it was pressed by using hydraulic press machine. The paving was made in the size of 20 cm x 10 cm x 6 cm with mix composition of 70% fine aggregate, 30% binder and activator from paving weight. The percentage of binder and activator was 65% and 35%, respectively. The curing was done by using wet burlap sack for about 28 days. After that, the compressive strength test was done. From the result of the compressive strength test of geopolymer paving sample can be concluded that the mixed test of carbide waste and fly ash (10 %: 90%) produced 34,6 MPa, and 39,8 MPa for its compressive strength.