bluuebunny/crossref_metadata_2025_split huggingface dataset:
Naïve Bayesian classifier algorithm and neural network time series for identification of lecturer publications in realizing internationalization of Universitas Negeri Semarang
Authors: Walid  , Alamsyah  
Published: November 2019

Abstract
The Naïve Bayes Classifier is a classification method rooted in the Bayes theorem. The main characteristic of the Naïve Bayes Classifier is the very strong (naïf) assumption of the independence of each condition/event. If X is the vector that enters the feature and Y is the class label, Naïve Bayes is written with P (X | Y). This notation means that the probability of a class Y label is obtained after the X features are observed. This notation is also called the posterior probability for Y, while P (Y) is called the prior probability Y. One of the important factors included in the UNNES internationalization assessment is the results of lecturer publications both at the national and international levels. The artificial neural network as one of the information processing systems designed by imitating the workings of the human brain in completing a problem by doing the learning process through changes in synaptic weight can be used to analyze the productivity of the performance of UNNES lecturers and staff in realizing the year of reputation proclaimed in 2017 Research related to this theme has been carried out in 2017 and shows that the factors of knowledge and behavior of lecturers and education staff have the most influence on the achievement of the year of reputation at FMIPA UNNES in 2017.
Effect of resin composition with Alumina (Al2O3) and Silica (SiO2) on the X-Ray radiation absorbent dose at Lung-Phantom production
Authors: Susilo  , Masturi  , Hardyanto W , Mosik  , Handayani L , Santoso S , Setiawan R 
Published: November 2019

Abstract
The ability of X-ray energy in the world of health is very useful to diagnose human organ, particularly the lung. The human lung is a very complex organ so the examination takes certain techniques to minimize the effects of radiation exposure. A lung phantom made from resin composition with alumina (Al2O3) and silica (SiO2) was developed to eliminate negative effect of radiation. The purpose of this research is to find the closest value of density (D) and coefficient of attenuation (μ) from the composition to be used as another alternative lung phantom. The lung phantom was made by different thickness of each composition of stepwedge. The method used was comparing between the density (D) and attenuation coefficient (μ) of the sample and the lungs as a reference. The results were analysed using MATLAB 2015a Application with ROI grayscale reading. It was concluded that the composition of optimum lung phantom produced which is closed to reference value is 50% resin-Al2O3 content with density (D) of 0.16, and 50% Resin - SiO2 composition with density (D) of 0.18.
Development of biology teaching management textbooks based on competency and conservation to maximize Pedagogical and Content Knowledge (PCK) the prospective teachers
Authors: Sukaesih S , Ridlo S , Saptono S 
Published: November 2019

Abstract
The objectives of this research are: (1) to examine the feasibility of competences and conservation-based textbook of Biology teaching management, (2) to test the effectiveness of the developed textbooks in the small and large-scale test. This study is an Educational Research and Development (R & D) following the stages of potential and problems analysis, data collection, product design, product validation, trial usage, product revision, and mass production. The results of the feasibility assessment of the product by the expert, the textbook have content the very feasible criteria (77,88), and media experts gave very feasible criteria (83,35). In the small-scale test, the students responded that the book had met the criteria of excellent legibility, on 14 indicators of product legibility with an average legibility value of 90,07. The textbook legibility is excellent since the sentence is understandable and communicative, has illustration adequacy, easy to use, relevant to the competences achievement, as well as there is the integration of conservation character values and TPACK description. The large-scale test showed that the application of the developed textbook was effective in maximizing the ability of prospective teachers’ PCK. It is found that competences and conservation-based Biology Teaching Management textbook are very feasible and powerful to maximize the PCK of prospective biology teachers.
Mathematical writing ability based on Stacie Lefler’s theory
Authors: Parastuti R H , Usodo B , Subanti S 
Published: November 2019

Abstract
Mathematical writing is one communication tool that always used by students especially when they trying to solve a problem. It becomes one of the student’s necessities to make it easier to find the right answer. It also trains students to solve problems coherently, completely, and clearly. Mathematical writing ability is important for students in Junior High School because it to know how they write the mathematical sentences in problem-solving. Teachers also need it to know how far their students can convey an answer through mathematical writing. The students’ mathematical writing ability will be measured on a particular dimension. The research method used is qualitative with the students of Junior High School as subjects. Based on the data analysis is found that on the dimension of accuracy, students are able to write answers and respond to the questions minim accuracy. On the terminology, students not use mathematical terms. In mathematical explanations, students’ explanations are minim and not thorough. It because that their written explanation is too short and minim sentences.
Graph theory as a tool to track the growth of student’s mathematical creativity
Authors: Suyitno A , Suyitno H , Rochmad  , Dwijanto  
Published: November 2019

AbstractThe essence of studying mathematics is the growth of mathematical creativity. The candidate of mathematics teachers need to know how to cultivate the mathematical creativity to students at school. The problem: How to cultivate students’ mathematical creativity through Graph Theory learning as the subject of lecturing? The goal, using Graph Theory as a tool to track the growth of mathematical creativity of students. The research method with qualitative approach which data analysis include: data reduction, data presentation, data interpretation, and conclusion/verification. The results of this research: (1) Graph theory can be used as a tool to cultivate the students’ mathematical creativity, by applying it to the open ended problems. (2) Based on the solution of the open ended problems, interviews, and triangulation, the students’ mathematical creativity can be grown. (3) The growth of students’ mathematical creativity has the Good categorical tendency. Suggestions: (1) The students need to be motivated about the importance of mathematical creativity. (2) The growth of mathematical creativity should be tracked also through other the subjects lecturing.
Location of Sinabung volcano magma chamber on 2013 using simulated annealing inversion scheme
Authors: Kumalasari R , Srigutomo W , Djamal M , Meilano I , Evita M , Gunawan H 
Published: November 2019

Abstract
Volcano has been monitoring using GPS after his eruption on August 2010. We Applied Simulated Annealing Inversion Scheme to GPS data on 2013, first we applied Simulated Annealing to velocity data on 23 January 2013 then we applied Simulated Annealing Inversion Scheme to data on 31 December 2013. From our analysis we got the depth of the pressure source modeling results indicate some possibilities that Sinabung has a deep magma chamber about 14km and also shallow magma chamber about 1km from the surface.
The influence of right and left brain intelligence on mathematics learning achievement
Authors: Lusiana R , Suprapto E , Andari T , Susanti V D 
Published: November 2019

Abstract
This research aims to determine the effects of right and left brain intelligence on mathematics learning achievement. This research used a quantitative approach with ex post facto research type involving learning achievement as the dependent variable and right brain acumen and left brain intelligence as an independent variable. The subjects in this research are seventh-grade students in junior high school in Madiun. The data collection instrument used is the mathematics achievement test and the right and left brain intelligence questionnaire. Data analysis in this research uses simple linear regression. The results of the research showed that there was an influence between the intelligence of the right and left brains on students’ mathematics learning achievement. The influence of right brain intelligence is 28%, and left brain intelligence is 46.7%.
Organophospate exposure time impact on acetylcholin-esterase activity
Authors: Dewi I G A K S P , Suarsa I W 
Published: November 2019

Abstract
This study aimed to determine exposure time needed by organophosphate pesticides (OPs) to decrease acetilcholinesterase (AChE) activity in wistar rats. Twenty-five male were divided into 5 groups. The control group without OPs exposure (K0), the group exposed to OPs for 1 week (K1), and groups (K2), (K3) and (K4) exposed to OPs for 2,3, and 4 weeks respectively. The blood sample was taken every week and the AChE activity of blood sample was measured using a spectrophotometer. The results showed that AChE activity decreased with the longer OPs exposure time. Exposed treatment for 3 weeks (K3) 162.80 ± 4.56 U/L showed a significant difference (p <0.05) on control (K0) 499.20±6.99 U/L. The results showed that the AChE activity of (K3) significanly decreased 162,80±4,56 U/L compared to control (K0) 499.20 ± 6.99 U/L. In conclusion Exposure OPs pesticide 3 weeks can reduce AChE activity.
ICT literacy of high school mathematics teacher: online learning competence with heutagogical approach
Authors: Purnomo J , Jailani  
Published: November 2019

Abstract
The purpose of this study is to determine the level of literacy of high school mathematics teachers. This research is a descriptive research that describes the literacy of high school mathematics teachers based on the analysis of questionnaires that are filled by teachers who come to the Center for Development and Empowerment of Mathematics Teachers and Education Personnel (CDEMTEP/PPPPTK Matematika) and teachers who access PPPPTK Matematika’s web, followed by high school mathematics teachers from various provinces in Indonesia. The research was conducted from May 5 to June 29, 2018. The results showed: (1) ability to use basic computer 55.07% good, and 44.93% moderate; (2) ability to create and use ICT-based learning media 7.97% good, 82.61% moderate, and 9.42% less; (3) ability to use Internet 39.13% good, and 60.87% moderate; and (4) the ability to use social media, the data obtained shows that five respondents did not answer. One respondent answered that they did not have social media. Most of the respondents have more than one social media. 52% of respondents who answered stated using WhatsApp. Ninety-three points two percent of respondents stated using Facebook. 52.27% of respondents use more than one social media.
Analysis of junior high school students’ errors in solving HOTS geometry problems based on Newman’s error analysis
Authors: Priliawati E , Slamet I , Sujadi I 
Published: November 2019

AbstractGeometry is the most important material to be learned in school. But the fact that there are still many students often makes errors in resolving the problems of geometry. This research focuses on analysis students’ errors in solving Geometry problems among junior high school students in every higher order thinking skills level. This research used a qualitative descriptive method aimed to identify the students’ errors based on Newman’s error analysis. The errors are associated with planes and related problems. Data collection was done based on students’ work through test and interview. The errors were analyzed according to Newman’s Error Analysis Model consisting of reading, comprehension, transformation, process skills, and encoding. The result revealed that the students having errors according to Newman’s error analysis in every higher order thinking skills level, they are analyzing, evaluating, and creating.
The ability of mathematical literacy on learning treffinger realistic assistance schoology
Authors: Maulana D F , Wardono  , Marwoto P , Mariani S 
Published: November 2019

Abstract
This research aims to determine the quality of learning through Treffinger realistic model assistance schoology and to know the improvement of students’ mathematical literacy skills on Treffinger realistic learning model assistance schoology. This research was a quantitative research with pretest-posttest control group design. The population of this research was the students of class VII of SMP Negeri 6 Semarang academic year 2017/2018. The sample was class VII C as the experimental class and class VII D as the control class. The technique for collecting data used observation and test methods. The results showed that the quality of learning model of Treffinger realistic assistance schoology has good category; the improvement of students’ mathematical literacy skills through Treffinger realistic learning model assistance schoology is higher than the improvement of literacy ability of students using PBL.
Biomass burning; ultrafine particles, concentration, and organ effect
Authors: Wardoyo A Y P 
Published: November 2019

Abstract
Biomass burning has been known as a PM0.1 emission source that may have an impact on health. In this research, we investigate biomass burning ultrafine particles, PM0.1 in terms of the concentration and the exposure impact on mice organ. We used two biomass burning such as pine wood and grain straw burning. The smoke was exposed to the mice for 100 seconds, and the effect on the organ was observed including lung, kidney, liver, and erythrocytes. The effects on the organ damage were related to the PM0.1 dose concentration. The particle dose concentration was calculated by summing the total concentration of an ultrafine particle in the smoke. The PM0.1 concentration emitted by the pine wood burning was 1.4 × 106 particles/cm3 meanwhile, the concentration of the grain straw burning was 2.7 × 106 particles/cm3. We observed the exposure effects on the mice organ with the results as follows: every biomass burning produced PM0.1 with a certain concentration. The effects of biomass burning PM0.1 emission on organ depended on a kind of biomass and the particle dose concentration. Lung was the organ having the most effect on the biomass burning particle exposures among the other organ.
Features of the cultivation technology of carrot hybrids in dry steppes of the Lower Volga region on drip irrigation
Authors: Bolkunov A I , Postnova M V , Sroslova G A 
Published: November 2019

Abstract
The paper studies the technology of the hybrid carrot cultivation with drip irrigation in a zone of the Lower Volga Region dry steppes. Carrots prefer medium-sized soil having the medium soil horizon and the pH of 6.0-7.5. However, it is cultivated in the majority of soil types. The crop yield depends on the quality the soil is cultivated with. Carrot taproots prefer the soil density of 1.0-1/3 g/cm3, so it is necessary to provide optimal water and air conditions of the soil. Sowing is done with pneumatic, electronic and mechanical seed drills. Pneumatic seed drills equipped with the metal pressure wheel, the tyne coulter, the small wheel for post-sowing pressing, the rubber wheel for soil smoothing and the distribution disk rotating in a direction opposite to seed drill wheels show the best seeding precision. The carrot cultivation performed under the conditions of the Lower Volga Region is possible only by means of irrigation. Carrot can be watered by corrugation, spray and drip irrigation methods.
Phytotoxic assessment of sewage treatment methods in disposal sites
Authors: Pisarenko P V , Samoylik M S , Korchagin O P 
Published: November 2019

Abstract
The paper presents the assessment of the impact of disposal sites on biota through definition of phytotoxic influence of polluted soil and landfill leachate on seedlings, growth and root system of plants Triticum aestivum. It is found that soil collected around a disposal site of municipal solid waste, the seedlings of plants are 16% lower in comparison with standard (clean soil), the length of a land part is 22% lower, the average length of roots is 44% less. The green weight of top and the weight of a root system of plants in the soil from a disposal site is 52% and 43% less respectively. This influence is characterized as above the average toxicity level. It is defined that with the introduction of Sviteco-PBG prebiotic (10% dilution) to the polluted soil the seedlings of plants are 5.2% better in comparison with the polluted soil without the prebiotic, the length of a land part – by 11.6%, the average length of roots – by 40.2% respectively; the green weight of top and the weight of a root system of plants is 14% and 16.5% higher in comparison with the polluted soil without the prebiotic. Thus, the use of prebiotics allows improving the quality of soil and reducing its phytotoxicity. In particular, if the influence on a root system of the polluted soil is characterized as toxic above the average, then after the application of prebiotics – as the average toxicity by root weight and absent (weak) toxicity by root length. It is found that when Sviteco-PBG (10% dilution) and Ca(OH)2 are added to sewage waters of a MSW dump at pH 10, their maximum purification from heavy metals is reached, the phytotoxic effect is estimated as weak toxicity. The phytotoxic effect of the polluted filtrate without purification – above the average toxicity. Thus, prebiotics allow improving the efficiency of soil cleanup from heavy metals, giving an opportunity in the long term to return contaminated land to their economic circulation. Ca(OH)2 and Sviteco-PBG (10% dilution) at pH 10 allows improving the quality of technogenically polluted soil, reducing toxic impact on biota and increasing the efficiency of sewage treatment in waste disposal sites.
Accumulation of heavy metals in melliferous plants in the territory of Nagaybaksky district of Chelyabinsk region
Authors: Yakovleva S N , Fatkullin R R 
Published: November 2019

Abstract
Due to rapid development of industry and transportation, mining intensity, and active use of chemicals in agriculture there is a sharp rise in the level of heavy metal pollution of natural environment, which mainly affects soil and plants. Excessive accumulation can lead to the destruction of the natural complex integrity. The pollution of heavy metal environment is one of the most pressing environmental problems. It has become particularly relevant in recent years since it closely intersects with another global problem – getting ecologically pure foodstuff. The studies concern the heavy metal content of the six species of inflorescence melliferous plants summer temporary generation grown in the territories around apiaries of Nagaybaksky district.
Cultivation of corn hybrids on the expected nutritional background in the Volga region of the Republic of Tatarstan
Authors: Mikhailova M U , Talanov P I 
Published: November 2019

Abstract
This article describes the specific conditions of nutrition of adaptive hybrid corn with ears to obtain high planned yields in the phase of milk-wax ripeness of grain on the gray forest soil of the Volga region of the Republic of Tatarstan in 2013-2015. As a result of the research it was found that the maximum increase in the area of the leaf surface was formed against the background of application of the calculated doses of fertilizers on 70 t/ha with sowing of corn hybrid Flint 200 (30.71 thousand tons). m2/ha), greater accumulation of plant biomass on the same background was observed on crops using the Newton hybrid (33.0 t/ha). The maximum yield formation (to 65.3 t/ha) was observed when making NPK 70 t/ha and the sowing of hybrid Newton, yield of green mass of corn on the background without fertilizers depending on sown hybrids amounted to 34.3-38.4 t/ha. In addition to this embodiment, it is noted the best nutritional value food and the best profitability 39.2 per cent, against 24.8 per on the background without fertilizers.
Impact of ethno-cultural component on the development of agricultural land use of Russian Germans living in the Altai Territory
Authors: Korneeva A V , Kosacheva T A 
Published: November 2019

Abstract
The scientific interest in the problems of ethnicity and the ethnic culture is reasoned by the process of globalization and the development of intercultural communications. The studies of ethnic groups and cultures are extremely relevant in connection with the formation of ethnic groups at different levels of development, of intra-ethnic cultural differences, including territorial ones, as well as inter-ethnic cultural similarities. The transformation of ethnic culture occurs under the influence of various factors, including geographic location, landscape, and neighborhood with other ethnic groups, mutual compliance. Global political and economic changes influence the ethno-cultural differentiation. The article analyzes the current sociocultural situation in rural areas with compact residence of the Russian Germans in the Altai Territory, discusses the factors influencing the development of the ethno-cultural component.
Analysis of the condition of forest shelterbelts of the agro-climatic zone in Stavropol territory using the example of “luch” enterprise of Blagodarnensky region
Authors: Kasmynina M , Odintsov S , Loshakov A , Gorbachev S 
Published: November 2019

Abstract
The development of sustainable management by forest shelterbelts is one of the initial factors in the agricultural and forest sector. A long, productive, economically interesting interrelation of anthropogenesis and forest ecosystems entails a stable management of forest shelterbelts. In order to preserve forest resources and forest areas, a solid foundation is needed to exploit the needs of the future of humanity. The development of indicators of sustainable development of forest ecosystem use is rapidly moving all over the world. Forest shelterbelts have such undeniable features affecting the environmental factor as a unique forest floor, unique herbaceous plants, specific animal world, a rare microclimate, the direction of the soil-forming process, etc. The main economic role of forest plantations is certainly protective. Forest plantations have a positive impact on the state of agricultural land due to the ratio of various forms of land use, as well as the introduction of washed and semi-washed plots into economic circulation. Sometimes, forest belts also get into the risk zone; this can be due to both natural conditions and human exposure.