bluuebunny/crossref_metadata_2025 huggingface dataset:
Floating Point versus Fixed point Tradeoffs in FPGA Implementations of QR Decomposition Algorithm
Authors: Amin-Nejad Siavash , Basharkhah Katayoon , Asgari Gashteroodkhani Tayyebeh
Published: October 2019

A wide variety of digital communication systems are encountered with high computational tasks. QR decomposition is one of such algorithms that can be implemented on FPGAs as a solution to large complex matrix inversion problems. A flexible vector processing architecture for the fixed and floating point implementations of the QR decomposition is presented. The design is implemented on the StratixIV device with 230K logic elements and verified with the SignalTap II built-in logic analyzer. Throughputs of 2.4M and 2.11M decompositions per second with maximum clock frequency of 340 MHz and 360 MHz are achieved for 4×4 matrices with the fixed and floating point designs respectively. The FPGA resource utilizations of the two data type implementations are also compared for different matrix sizes for the StratixIV and Arria10 devices.
Structural Performance of Externally Strengthened Rectangular Reinforced Concrete Beams by Glued Steel Plate
Authors: John A. T. , Nwankwo E. , Orumu Solomon Teminusi , Osuji S. O.
Published: October 2019

This paper examines both flexural and shear behaviour of eight full-scale (2700×160×100-mm) reinforced concrete rectangular beams subjected to one-third point load. Two types of beams were investigated; Type-E and Type-C. Type-E are reinforced concrete rectangular beams strengthened externally by 1.5mm thick structural steel plate glued to the tensile face with epoxy as adhesive while type-C are reinforced concrete rectangular beams without structural steel plate glued to the tensile face. An average concrete strength of 30N/mm2 at 28 days was used. Required internal reinforcement according to BS 8110-1:1997 was provided for the concrete rectangular beams. Before the beams were externally strengthened, the beam surface to be plated was gritted to take off the cement membrane and to open up the aggregates. Epoxy adhesive was applied as a paste to both the plate and concrete surfaces: the two surfaces were then put together and held in place under pressure of 3.84kN/m2 until the glue was cured.  The beams were subjected to flexural testing after 28 days, using loading frame. Each of the rectangular beams support at both ends were subjected to one-third point load, deflection readings were recorded using a dial gauge at every 1.82kN increment. At ultimate load, the beams failed by a crack initiated at the bottom fiber of the beams. From the test results, an average flexural and shear strengths of Type-C beams are; 21.91N/mm2 and 1.05N/mm2 respectively, while type-E beams are; 28.91N/mm2 and 1.39N/mm2 respectively. The results of the investigation showed that flexural and shear strengths of reinforced concrete rectangular beam increased when strengthened externally by bonded steel plate. A straightforward analytical procedure was developed to validate the experiment results of type-E and type-C beams, using rectangular stress block for concrete. Experimental average failure load for beams Type-C and Type-E are 22.44kN and 29.60kN respectively while theoretical failure load for Type-C and Type-E beams are 20.86kNand 31.2kN respectively. Generally, there were acceptably fair correlations between analytical and experimental failure loads of Type-C and Type-E beams.
Impact of Machine Parameters on Knit Fabric GSM and Shrinkage
Authors: Hoque Mohammad Mohsin Ul , Rassel Md. Anisuzzaman
Published: October 2019

Knitted fabrics have a tendency to undergo some dimensional changes and GSM variation due to different knitting parameters. The investigation was carried out to relate the effect of different yarn counts, stitch lengths, machine gauge on fabric thickness variation and shrinkage behavior of the fabric. In this study the experimental results showed that fabric GSM varies as machine gauge changes by using same yarn count. On the contrary, when machine gauge and yarn count was fixed, the changes of fabric GSM was very negligible. For finer yarn count with different machine gauge GSM variation is more compared to coarser yarn count. But with same machine gauge GSM was very closer for both of finer and coarser yarn count. Fabric shrinkage both in lengthwise and widthwise is more fore finer yarn count than coarser yarn count. This study supports that, selection yarn count and calculation of stitch length was not only the way to meet buyer requirements regarding fabric thickness and shrinkage properties. The results found from this work will guide the determination to pick up right machine gauge, management of correct yarn diameter along with meticulous stitch length estimation.
Hardware co-simulation of 1024-point FFT and it's Implementation, in Simulink, Xilinx Vivado IDE on Zynq-7000 FPGA
Authors: Shashidhara K. S. , Srinivasaiah H. C.
Published: October 2019

In this paper a 1024-point FFT Algorithm is implemented on Zynq-7000 FPGA device. The design implementation uses Hardware co-simulation in Simulink and Xilinx Vivado environments with Zynq-7000 FPGA target evaluation board using JTAG setup.  The power parameter for the configured FFT IP core for 1024 point and the signal source DDS block are estimated. The DDS with both sine and cosine signal outputs enabled, consume a power of 0.277 W, whereas, the 1024 point FFT core consume a power of 0.044 W. Further when 2 DDSs were instanced to generate orthogonal sine and cosine sources for OFDM signals of same frequency 1MHz each, a total of 0.277W power is consumed. When a single DDS core is configured for both sine or cosine signal only configuration by instancing a 1024-point FFT core the total power consumed is 0.268W and 0.267W, respectively, a 1mW higher to cosine case. Further, when 1024 point FFT core power alone is calculated it is found to be 0.044W (or 44mW). When a single DDS is instanced for OFDM signal generation by opting both the sine cosine signals, it consumed a total power of 0.233 W saving a power of 0.044W or 44mW by sine or cosine data re-use from the LUT ROM of DDS. Thus saving a power of 44mW by using data re-use through LUT’s of DDS. This is a significant power saving. In this, hardware co-simulation process, Xilinx system generator tool (Sysgen) is used. This implementation is coded using Verilog HDL, verified on Xilinx Vivado platform on the  Zynq-7000 FPGA device. Note that Zynq-7000 is supporting hardware co-simulation, hence the 1024-point FFT  has been implemented on this device. The simulation results are captured on Xilinx signal viewer for a proper conclusion.
Heat Gain Study of a Residential Building in Hot-Dry Climatic Zone on Basis of Three Cooling Load Methods
Authors: Sharma Antima , Sengar Namrata
Published: October 2019

The paper presents the study on theoretical heat gain for a residential building located in hot-dry climatic zone of India. The location is city Kota (25.100 N, 75.830 E). To determine heat gain, three different methods have been used. The aim of the paper is to study the heat gains and also to compare the three different methods. First method is CLTD/GLF method which is taken from ASHRAE 1997, second method is CLF/SCL/CLTD method which also taken from ASHRAE 1997 and third method is RLF method which is taken from ASHRAE 2013. After that comparative study has been done of all three methods. For the study a typical middle income group residential house has been considered. The model house is taken of size 12 m x 15 m with three windows of size 1 m x 1m each and one door of size 1 m x1.5 m. The walls are brick wall and roof is taken of RCC. From the analysis it is found that CLTD/GLF method predicts heat gain towards lower side whereas CLTD/SCL/CLF method values are higher and RLF values lies in between being more close to CLTD/SCL/CLF method. An important point to notice on comparison of results is that all methods predict around 50% heat gain through roof for this building structure. Another major contribution to heat gain (around 30%) is through walls. The window to wall ratio for the building is 1.9% and therefore the effect of heat gain through windows is only around 8%. Other factors contribute only a minor percentage to the overall heat gain. Thus, from the results it can be concluded that in order to reduce the heat gain and cooling load, major attention must be paid on roof and wall heat gain along with the other factors. Suitable passive measures can be identified on the basis of heat gain study.
Implementation of 1024-point FFT Soft-Core to Characterize Power and Resource Parameters in Artix-7, Kintex-7, Virtex-7, and Zynq-7000 FPGAs
Authors: Shashidhara K. S. , Srinivasaiah H. C.
Published: October 2019

This Paper presents implementation of 1024-point Fast Fourier Transform (FFT).  The MatLab simulink environment  approach is used to implement the complex 1024-point FFT. The FFT is implemented on different FPGAs such as the following four: Artix-7, Kintex-7, Virtex-7, and Zynq-7000. The comparative study on power and resource consumption has been carried out as design parameters of prime concern. The results show that Artix-7 FPGA  consumes less power of 3.402W when compared with its contemporary devices, mentioned above. The resource consumption remains same across all the devices. The resource estimation on each FPGA is carried on and its results are presented for 1024-point FFT function implementation. This Comprehensive analysis provides a deep insight with respect to power and resources. The synthesis and implementation results such as RTL Schematic, I/O Planning, and Floor Planning are generated and analyzed for all the above devices.
East Sea - Natural Resources in Vietnam
Authors: Duong Le Hung , Dong Thi Minh Hao
Published: October 2019

In Vietnam, status is mentioned a lot in recent economic and management documents. The scientific basis of the position resources for socio-economic development is still a new issue in our country, and it is not accessible in the world. However, this is a significant direction that the right awareness will create a new perspective on the rational use of resources, spatial organization, and planning of rational and sustainable socio-economic development. Vietnam is particularly crucial in Southeast Asia thanks to a territory stretching over three thousand kilometers on the western edge of the South China Sea and a territorial sea area of over one million square kilometers, three times the area of the territory. The Vietnam Sea is located in a tropical monsoon region, with world-class rivers that the basin covers six countries. The Vietnam Sea plays an essential role in the environment, the ecology of the East Sea and the region, an exclusive transitional zone between the Indian Ocean and the Pacific Ocean in terms of biological and maritime geography. The development of an industrialized and modernized economy must inevitably be linked to the maritime potential of the ocean. This article presents the initial findings on the coastal and coastal status of Vietnam.
Urban Transport in Vietnam:
Authors: Nguyen Thi Hoa , Phan Thi Thuy Hoa
Published: October 2019

Environmental pollution has become a problem not only for one nation, one region but also for the common concern of all humanity. The process of socio-economic development of the countries in the world has led to tremendous impacts on the environment, causing the human environment to change and become increasingly degraded. important. These are climate change - global warming, depletion of the ozone layer and acid rain ... especially air pollution caused by transportation. In Vietnam, environmental pollution in big cities is becoming a pressing problem. The problem of overcrowding of transport in big cities, which has been very difficult, now adds a serious situation of pollution that is increasing to worrying levels. What a challenging problem that is posing on the shoulders of managers. The paper presents the realities of environmental pollution, especially air pollution from vehicle emissions. Besides, also initially offering solutions to reduce pollution caused by urban transport in Vietnam.
A Vision for Vietnam in the Revolution 4.0:
Authors: Vu Minh Thi , Dong Thi Minh Hao
Published: October 2019

The fourth industrial revolution, also known as the digital revolution, has taken place since the beginning of the 21st century. The characteristic of this industrial revolution is the increasing popularity of artificial intelligence and automated machines. chemistry, bringing a combination of virtual systems and reality. This revolution has a strong impact on many fields and many aspects of social life, in which a special human resource of high quality is indispensable; but human resources are the direct object of education – training. Education and training play an important role as a key factor and a driving force for the development of the economy. Not only in Vietnam but also in most other countries in the world, governments consider education as a top national policy. So why is education and training so important to the country's development strategy? The quality of Vietnamese education is really alarming in all aspects. If we don't recognize the true nature of the problem, if we just want to have great achievements, want our students to be rewarded and forget about the problem, the future of education will have a lot of defective products. The future of education is the future of the country, the future of every family. Therefore, each person in different positions but with the sincerity of education to join hands will hope for the change. The content of this article will revolve around the inadequacies of Vietnamese education about the status quo, about the reasons why Vietnamese education has not kept up with international friends, thereby proposing solutions for difficulties. the current challenges of the Vietnamese education industry, and the need for innovative reforms to fulfill the mission of the education sector. Good coordination between the three environments including family, school and society will be the key to solving the problem of improving the quality of education in Vietnam. That is the objective of this paper, as the solution improves the connection and interaction efficiency of the three environments mentioned above.
Popular Coastal Environment Issues and Orientation for Solutions in Vietnam
Authors: Quy Nguyen Van , Dong Thi Minh Hao
Published: October 2019

The process of interaction and exchange of material between continents and oceans in coastal areas (DVB) creates a dynamic balance on environment, ecology and natural resource structure. Due to anthropogenic impacts and climate change, this balance is disrupted and leads to many negative consequences. The coastal area of ​​Vietnam is located in the monsoon tropical region where large rivers with basins in six countries enter and the outer sea has ecological and environmental relations with the waters of many countries in the region. This is a very sensitive area and ecosystems, especially coral reefs, mangroves, seagrass beds, etc. very vulnerable to environmental impacts. Along with economic development and population growth, humanitarian activities have a major impact on the coastal environment. People, environment and coastal ecosystems are also affected by abnormal climatic and hydrological changes that have recently increased. Not to mention the risk of natural disasters, including volcanoes, earthquakes and tsunamis, has not been fully assessed. Environmental stresses and coastal catastrophes are generated not only locally but also from continents and oceans. Therefore, the strategy for coastal environmental protection needs to be viewed from the macro-relations of the continental-ocean interaction in the coastal region.
Data-Driven Intelligent Tutoring Systems for STEM+C Learning and Teaching
Authors: Bui Hieu Trong
Published: October 2019

It is wide known that one of the most effective ways to learn is through problem solving. In recent years, it is widely known that problem solving is a central subject and fundamental ability in the teaching and learning. Besides, problem solving is integrated in the STEM+C (Science, Technology, Engineering, and Math plus Computing, Coding or Computer Science) fields. Intelligent tutoring systems (ITSs) have been shown to be effective in supporting students' domain-level learning through guided problem solving practice. Intelligent tutoring systems provide personalized feedback (in the form of hints) to students and improve learning at effect sizes approaching that of human tutors. However, creating an ITS to adapt to individual students requires the involvement of experts to provide knowledge about both the academic domain and novice student behavior in that domain’s curriculum. Creating an ITS requires time, resources, and multidisciplinary skills. Because of the large possible range of problem solving behavior for any individual topic, the amount of expert involvement required to create an effective, adaptable tutoring system can be high, especially in open-ended problem solving domains. Data-driven ITSs have shown much promise in increasing effectiveness by analyzing past data in order to quickly generate hints to individual students. However, the fundamental long term goal was to develop “better, faster, and cheaper” ITSs. In this work, the main goal of this paper is to: 1) present ITSs used in the STEM+C education; and 2) introduce data-driven ITSs for STEM+C education.
Spatial Analysis of Risk Factors of Potable Water and The Efficiency of HIV/AIDS in Ekiti State, Nigeria
Authors: Owoola Folorunso , Adebayo Wole W. , Olowe Kayode O.
Published: October 2019

Human immunodeficiency virus (HIV) and Acquired immunodeficiency syndrome (AIDS) have been a major problem around the world, and various control have been put in place to tame this potentially life-threatening virus. The research aims to expose the relationship between HIV/AIDS and potable water. However, it is generally believed that the virus cannot be contacted through water, but the interface between HIV/AIDS may likely be influenced through scarcity of water. The data for this research was collected through administration of questionnaire to people leaving with HIV/AIDS (PLWHA) at major health institutions in the three senatorial districts in Ekiti state. The data collected were analyzed using statistical tools and the results show that 44.5% of the respondents believed that water availability can reduce the spread of HIV/AIDS infection around the study area. 84.5% of the respondents had an increased need of water after HIV infections. While 92.7% of the respondents agreed HIV positive people have increased need for better hygiene and sanitation. The study discovers that water, sanitation, hygiene and population are agents determining the spread of HIV/AIDS in the environment. Thus, planning and proper spread of infrastructure that support supply of potable water will reduce and control the virus.
Tamsulosin And Dementia In Old Age: Is There Any Relationship?
Authors: Lapenda do Monte Rebecca Renata , Vidal Costa Karina de Andrade , Nunes Junior Arnaldo Santiago , Meneses Rêgo Amália Cinthia , Filho Irami Araujo
Published: October 2019

Tamsulosin is used to treat Benign Prostatic Hyperplasia (BPH), prescribed annually to about 12.6 million patients worldwide. It is an alpha-adrenergic antagonist that reduces the tone of the prostate smooth muscle involved in the pathophysiology of BPH. By acting on alpha 1A receptors, predominant in the prostate, tamsulosin also acts on receptors present in the brain. This study consisted of a literature review aimed at disseminating scientific knowledge about the relationship between the use of tamsulosin and the onset of dementia. Pubmed, Scopus, Scielo, Embase, and Web of Science studies involving dementia in patients using tamsulosin in the last five years were selected. The review showed a risk correlation and a higher incidence of dementia in treated patients. The risk ratio, when compared to other medicines, approached 1.20. In conclusion, it was identified the need for clinical trials with higher sampling power to increase relational significance due to the high prevalence of BPH and the extensive use of tamsulosin in elderly patients with the disease.
Knowledge, Attitude and Practice of Saudi Parents Towards Their Children's Oral Health: An Online Questionnaire Survey
Authors: Mustafa Malaz Mohamed Elrafie , Albeshri Ebtehaj Saleh , Althobati Mashael Khaled
Published: October 2019

Children's oral health is of paramount importance as it governs the oral health status of the upcoming generation. Their oral hygiene is a vital part of general childcare. This under-appraised issue is often neglected by young parents, which can result in poor children's oral health. Aim: To assess standard knowledge, attitude and behavior of Saudi parents pertaining to the oral health of their young children. Materials and Methods: a prospective cross-sectional online survey was conducted in Saudi Arabia in 2017. The questionnaire included a total of 16 questions which were divided into two parts; the first part asked about parents' general information such as the name, age, gender, educational level, occupation and total family income. The second part included questions related to knowledge, attitude and practices toward children on selected oral health issues. Results: 1038 Saudi parents responded to the online questionnaire (70% Females and 30% male). Majority Saudi parents recognized many preventive dental aspects like importance of early acquisition of tooth brushing, avoidance of caries-related diet and nocturnal on demand breast feeding. Seventy three percent were convinced that it is better to take their children to a specialized pediatric dentist rather than a general dental practitioner. However, it was revealed that there was limited knowledge and awareness of Saudi parents about the significance of the routine dental checkups, ideal timing of first dental visit and importance of topical fluoride. Hypothetical myths and social beliefs associated with dental treatment like endodontic treatment were common; creating barriers to early preventive and curative dental care of young Saudi children. Conclusion: Parents were found to have inadequate knowledge in regard to oral health of their young children. The present research points to a need for enhanced dental education of parents, particularly in planning for their children's first visit and effect of prolonged on-demand at night breast feeding on development of early childhood caries. Community based oral health programs are required in order to raise parents' awareness regarding their children's oral health.
Rancang Bangun Rangkaian Komunikasi Serial USB Untuk Praktikum Algoritama Dan Pemrograman
Authors: Ismail Taofik , Saparudin Ade Dedin , Kurniawan Asep Hendra
Published: October 2019

Praktikum Algoritma dan pemrograman merupakan salah satu praktikum di laboratorium teknik elekro unpad yang di selenggarakan pada semester 1. Penggunaan perangkat praktikum yang mudah dan praktis akan sangat membantu mahasiswa/praktikan untuk memahami konsep serta materi praktikum dengan baik. Proposal penelitian ini bertujuan untuk mendesain dan membangun suatu perangkat keras komunikasi serial berbasis mikrokontroller, sebagai sarana untuk mempermudah melihat keluaran dari percobaan praktikum algoritma dan pemrograman di teknik elektro unpad. Dengan perangkat tersebut praktikan bisa membuktikan benar atau salahnya data yang dikirim atau di terima komputer melalui komunikasi serial. Metode pengujian yang digunakan pada alat ini menggunakan dua fungsi yaitu sebagai penerima data serial dari komputer dan pengirim data serial dari alat ke komputer. Dari hasil pengujian, perangkat keras komunikasi serial menghasilkan data yang tepat sesuai dengan data yang di inputkan praktikan dari komputer dan sebaliknya data yang dikirim dari perangkat harus sesuai dengan yang di tampilkan pada komputer praktikan. Hasil dari penelitian ini , perangkat keras yang dibangun bisa digunakan pada praktikum ( khususnya praktikum algoritma dan pemrograman) dan berfungsi sesuai dengan kebutuhan praktikum baik berfungsi sebagai pengirim data komunikasi serial atau sebagai penerima data serial.
Defender el privilegio en Burgos: discurso, protesta y negociación en torno a las usurpaciones nobiliarias a fines de la Edad Media
Authors: Montero Málaga Alicia Inés
Published: October 2019

La conflictividad urbana en la Castilla bajomedieval ofrece abundantes ejemplos del uso de referentes políticos comunitarios por parte de los poderes concejiles a la hora de defender posiciones de privilegio, en un escenario complejo definido por las interrelaciones sostenidas con otros agentes políticos presentes en el marco urbano (monarquía, nobleza, iglesia). En este sentido, el contencioso por el intento de venta de unas tierras colindantes con el alfoz de Burgos llevado a cabo en 1510 por la institución capitular al condestable de Castilla, considerado como una amenaza a los privilegios urbanos por una parte del regimiento, hizo aflorar en el escenario de negociación abierto para resolver el conflicto –en el que intervinieron el cabildo, el noble, el regimiento y el representante regio– la diversidad de intereses de la élite local en función de los vínculos clientelares que sostenía.
Elites regimentales y pecheros: prácticas coactivas y resistencias en el concejo de Ávila
Authors: Somoza Tamara
Published: October 2019

Las elites regimentales de Ávila llevan a cabo una serie de prácticas coactivas sobre los pecheros que afectan de manera significativa sus condiciones de reproducción: usurpan sus tierras y términos comunales, imponen prendas y tributos, obstaculizan su accionar político dentro del concejo, entre otras. El presente artículo se propone arribar a una caracterización de estas prácticas; a la vez que identificar sus efectos y las distintas resistencias que elabora la comunidad de campesinos.
Renk Kodları ile Direnç Okumanın Öğretiminde Simülasyon Kullanımının Öğrenme Üzerindeki Etkisi ve Öğrencilerin Görüşleri
Authors: HARMAN Gonca , YENİKALAYCI Nisa
Published: October 2019

Bu araştırmada renk kodları ile direnç okumanın öğretiminde simülasyon kullanımının öğrenme üzerindeki etkisi ve öğrencilerin görüşleri incelenmiştir. Araştırmaya Fen Bilgisi Eğitimi Anabilim Dalı birinci sınıfta öğrenim gören 60 öğrenci katılmıştır. Araştırmada tek örneklem son test yarı deneysel desen kullanılmıştır. 10 sorudan oluşan bilgi testi ve 2 sorudan oluşan görüşme formu kullanılarak veriler toplanmıştır. Toplanan veriler içerik analizi yöntemi ile çözümlenmiştir. Araştırma sonucunda renk kodları ile direnç okumanın öğretiminde simülasyon kullanımının öğrenme üzerinde etkili olduğu saptanmıştır. Fen bilgisi öğrencilerinin simülasyon kullanımına yönelik görüşlerinin genel olarak olumlu olduğu belirlenmiştir. Öğrencilerin simülasyon kullanımının avantajlarına yönelik görüşlerinin akılda kalıcılık, pratik yapma, görsel, eğlenceli, kolay ve anlamlı öğrenme, hızlı öğrenme, zamandan tasarruf sağlama, pratik kullanım, direnç okumada kolaylık sağlama kodlarında yoğunlaştığı; öğrencilerin simülasyon kullanımının dezavantajlarına yönelik görüşlerinin ise kafa karıştırması, gerçeğini görme isteği, ezber gerektirmesi, uğraştırıcı olması ve uzun zaman alması kodlarında yoğunlaştığı belirlenmiştir.
Developing Instrument Assessment of Student’s Process Skills in Physics Learning Based on Local Wisdom
Authors: . Allivna , . Mundilarto
Published: October 2019

The aim of this research is to produce instrument of student process
skill assessment on project
learning based on local wisdom gasing bamboo. The process skill
assessment instrument is an
observation sheet. The method used in this study refers to Mardapi
development. The research step
is to arrange instrument specification, write manuscript, study
instrument, instrument test,
instrument analysis and instrument revision. The instrument is validated
by 10 validators for
analysis through Aiken V and uses eduG-6e to calculate its reliability.
The conclusion in this research is generated instrument of assessment
process with its validity range between 0,73 until 1.00 and its
reliability value equal to 1.00.
The Efficiency of Virtual Museum in Development of Grade Eight Students’ Achievements and Attitudes towards Archaeology in Oman
Authors: Ambusaidi Nada Ali , Al-rabaani Ahmed Hamad
Published: October 2019

This study investigates the effectiveness of using virtual museum in teaching social studies for the development of eighth grade students’ achievement and attitudes towards archaeology. A quasi-experimental study was conducted with a sample of 60 females, comprising one experimental and one control group (each consisting of 30 students). The experimental group was taught by virtual museum, while the control group was taught by the traditional method. The data was collected by administering an achievement test with thirty questions and a 43-item attitudinal scale. The validity of these instruments was checked by a panel of judges and reliability was examined using Cronbach’s alpha: (.712) for the test and (.891) for the scale. The results showed significant differences (α=0.05) between the means of the groups in favor of experimental groups in achievement test and attitudes towards archaeology and towards using museum in teaching. The study thus indicates that the use of virtual museums is beneficial in providing a supportive and encouraging learning environment
Experimentation of STAD and Jigsaw Learning Models on Learning Achievements in terms of Learning Motivation
Authors: Berlyana Mela Dewi Putri , Purwaningsih Yunastiti
Published: October 2019

The purpose of this study was to compare the value of the pretest and posttest in the experimentation of the STAD and Jigsaw learning models on learning achievement in terms of learning motivation. This research is a quantitative research with an experimental method. The population of this study was all X grade students of IPS of SMA Negeri 3 Boyolali in the Academic Year of 2017/2018with a total of 108 students, the study sample was determined by a cluster sampling technique of 2 classes with a total sample of 72 students. The learning model in the experimental class used the STAD method and the control class used the Jigsaw method. Data collection techniques in this study were the method of documentation, tests, and questionnaires. The research hypothesis test used two-way analysis of variance with a 2x2 factorial design and a significant level of 5%. The analysis prerequisite test that is carried out is the normality test and homogeneity test using SPSS 23. From the results of the analysis it can be concluded that (1) differences in the effect of economic learning achievement between students who learn using STAD and Jigsaw cooperative learning models; (2) differences in the effect oflearning motivation of students using STAD and Jigsaw cooperative models on economic learning achievement; (3) whether there is an influence of the interaction between the learning model and the learning motivation of students on economic learning achievement.
Development of Vector Representation Test Instrument for Senior High School Students in Realizing Learning Outcomes
Authors: Nursuhud Puji İman , . Warsono , . Supahar , Darma Rio Sandhika
Published: October 2019

The study was conducted to developthe vector representation ability test items for seniorhigh school students and obtain Item Curve Characteristics (ICC). Grid test instruments are arranged based on competencies and vector representation indicators which are then used to compile items. The test instrument consists of five question items related to vector representation which includes drawing vectors, determining the magnitude and direction of vectors and performing vector operations. The validated instrument was piloted in 296 students from three schools in Batang Regency, Central Java. Politomus data were analyzed using the QUEST program for classical analysis and PARSCALE 4 for modern analysis theory based on Partial Credit Model (PCM). The results of the data analysis of the trial itemsindicate that of the five item questions, only 4 questions were fit with PCM. The reliability of the test instrument is 0.72, the level of difficulty of the items is in the range of 0.79 to 1.35. The information function and Standard Error Measurement (SEM) show that test items are developed reliably to measure the vector abilities of students with the average category in -1,6< θ<+3,2 logit scale with SEM ± 0,5.
AnalysisofBased Test InstrumentsLocal Wisdomof Terbang Papatto Measure Mathematical Representation Capabilities in Learning Physics
Authors: Oktavia Danis Alif , Setyadi Ahdika , . Warsono , . Supahar
Published: October 2019

This study aims to analyze the mathematical representation ability test instruments based on local wisdomof terbang papatto high school students. The research method used by compiling the instrument grid based on aspects of the ability of mathematical representation based on local wisdomof terbang papat, which is then used to compile indicators and items. The test instrument consists of four indicators of the ability of mathematical representation, each of which has five items and has been validated by expert judgment, physics teacher and peer reviewer. The validated instrument was tested on 338 students from two high schools in Kudus Regency. Data obtained in the form of polytomus data, then analyzed using Partial Credit Model (PCM). The results obtained showed that all test instruments of mathematical representation ability were proven to be fit with PCM, reliability of test instruments was declared reliable based on PCM results, total information function was between -2.00 to +1.8, difficulty indexes were more than -2.0 and less than 2.0 (-2.0 ≤b≤ + 2.0) which means all items are in good category. Thus the ability test instrument based on terbang papat local wisdom can be used to measure the ability of students' mathematical representation according to the partial credit model based on the five categories of polytomus data
Development of Portfolio-Based Modules with Enrichment Model to Improve Creative Thinking in Middle Schoo
Authors: Asri Sangkin Mundi , Joebagio Hermanu , . Djono
Published: October 2019

One of the objectives of learning Mathematics in Indonesia is for students to get various provisions when facing challenges in the global era. Therefore, the ability to understand is emphasized in the development of thinking processes. Teaching materials are obviously needed to bridge the material so that it is conveyed to students correctly according to the learning objectives. One of the appropriate and necessary teaching materials in Mathematics learning is an Enrichment based portfolio module. The objectives of this research were to find out the condition of learning Mathematics in the Surakarta State Middle School nowadays. The second objective wasto know the development of portfolio learning modules with the Enrichment model to improve creative thinking. The third objective was to determine the effectiveness of the portfolio learning module with the Enrichment model that can improve creative thinking. The type of research used in this research was development research. The instruments used in this research were material expert and media assessment sheets on teaching materials, student response questionnaires and learning outcomes tests. After the teaching material was made, it was then validated by the expert team. Validation was carried out by two material experts and design experts. After the medium was validated and revised, then a user trial was then carried out, namely the trial of small groupsand large groups. Based on the results of these trials, the teaching materials were revised again if weaknesses were found again. Next was the implementation stage of teaching materials for 8th grade students in one of the Surakarta City Middle Schools
Evaluation of Amoma,Giya,AlayonSa Kalampusan(Foster, Guide, Work Together Towards Success)Program at School Level Using ABCD Model
Authors: Castellano Decie Marie M.
Published: October 2019

The purpose of this study was to evaluate the Amoma, Giya, Alayon sa Kalampusan (AGAK)Program, a child nurture, drop out reduction program initiative of Department of Education-Division of Bohol, Philippines,at Haguilanan High School using the ABCD Evaluation Model of Ochave. This study specifically investigatedthe effectiveness of the program’s implementation by looking in to the four components indicated in the evaluation model: A -the students; B -the programs and operations; C -the effects and D -the social impact; and determined the intents and actualities of each component to identify the gaps between these two. Interviews were conducted to the eight junior high school teachers of the school, to know the processes in the implementation of the program as well as the issues and challenges experienced while carrying out the said program. Although the AGAK Program is a promising drop out reduction program, its implementation in the school experienced issues in the identification of the beneficiaries of the program, the assistance given to the beneficiaries and the program’s monitoring. Thus recommendations were made to enhance the implementation at the school level.
MODELING AS THE WAY OF ACQUIRING KNOWLEDGE
Authors: Dudzik Piotr , Terczynska Ewa , Tytkowski Krzysztof
Published: October 2019

Changes taking currently place in upbringing and teaching, force teachers to constantly search for newer methods of transmitting knowledge to their students. Young people beginning their studies are brought up in different ways of gaining recognition skills than they were a few years ago. Children play with blocks, building various structures and learning the shapes and features of single blocks, but they must be able to imagine the overall effects in their work. During our geometry classes, we refer to wooden models of solids like pyramids and prisms, so that building models from blocks becomes more natural and less hard. With this in mind, we came up with an idea to prepare a number of models that students could cut from a single piece of paper and then fold it to confront a 2D illustration with the corresponding 3D model. In this paper, assumptions according to the model that we made, as well as solutions and some examples, are presented.
EXAMPLES OF GENETIC ALGORITHMS USAGE IN GEOMETRY AND ALGORITHMIC DESIGN
Authors: Nessel Michał , Filipowski Szymon
Published: October 2019

In this paper, the authors test genetic algorithms as geometric and design issues’ solvers to explain and explore the possibilities of this computing technique in design and research. The tests and explanations are based on three classical geometry problems of the Ancient Greece and on a pattern distribution algorithm, created by the authors and inspired by the definition of Lebesgue covering dimension. The basic tools for research are: Rhinoceros, the Grasshopper plug-in and the Galapagos tool. The tests prove that, as a result based on computing techniques, genetic algorithms can be used to find solutions without the implementation of analytic methods. This advantage of evolutionary computing can be very useful in case of complex issues, where implementation of analytic methods reveals itself difficult or even impossible.
A REVIEW OF AUGMENTED REALITY FOR ARCHITECTURE AND CULTURAL HERITAGE VISUALIZATION
Authors: Đurić Isidora , Obradović Ratko , Ralević Nebojša
Published: October 2019

This paper presents an overview of the use of Augmented Reality in the area of architecture and cultural heritage visualization. The subject of this research are objects that have significant cultural and historical values which, for different reasons, cannot be perceived in their real environment. Using two case-studies, the processes of 3D reconstruction, optimization and AR presentation of the reality models are described in detail. The 3D models are created by using photogrammetry and the AR visualization is performed by using an existing platform for the AR presentation. The aim of the paper is to emphasize the importance of incorporating photogrammetry and augmented reality for the visualization of different types of object features.
ORIGAMI TESSELATIONS
Authors: Crespo Osório Filipa , Paio Alexandra , Oliveira Sancho
Published: October 2019

Rigid Origami folding surfaces have very interesting qualities for Architecture and Engineering given their geometric, structural and elastic qualities. The ability to turn a flat element, isotropic, without any structural capacity, into a self-supporting element strictly through folds in the material opens the door to a multitude of uses. Besides that, the intrinsic geometry of the crease pattern may allow the surface to assume doubly curved forms while the flat element, before the folding, could never do it without the deformation of the material [01][02].
The main goal of this Ph.D. research is to reach a workflow that allows for the design and implementation of kinetically reconfigurable Origami Surfaces. In this paper, we will address mainly the parameterization of certain folded geometries, illustrating our method, simulating the folding of regular crease patterns through geometric operations on the smallest set of faces (local) that can be reproduced to simulate the whole group (global).
THOUGHT MODELLING IN DESCRIPTIVE GEOMETRY
Authors: Rodrigues Constantino
Published: October 2019

This paper investigates, analyses, reflects upon, and draws conclusions on the regulation of thought/ discourse in science and in descriptive geometry. After stating the synonymy of thought and discourse, as advanced by Júlio Fragata, this study identifies Michel Foucault’s Procedures for Controlling and Delimiting Discourse, Louis Althusser’s Ideology, and Bento Caraça’s vision of science, and their effects on the former. We also observe the divergences in knowledge and truth, ratified by Karl Popper.
Based on Foucault ́s categories, we aim to, first, question the discourses on the genesis of both Analytical and Descriptive Geometry, where the ontological, the logical, and/or the discipline truths don’t always conform and, secondly, question the actions on discourse/thought, which are related with Foucault’s categories and subcategories and direct them towards Geometry.
We conclude by affirming the existence of the aforementioned procedures, of interferences in the ontological truth, while recognizing the need for surveillance.
SKETCHBOOK
Authors: Mendes Tavares Luísa , Spada Tavares Danielle
Published: October 2019

Há uma demanda crescente de profissionais de design para trabalhar com software de representação virtual. A alta tecnologia e a popularização das ferramentas digitais contribuíram para que os alunos cada vez mais conhecessem e aproveitassem essas técnicas. No entanto, esses software são apenas um instrumento para implementar os projetos desenvolvidos pelos alunos e exigem muitas habilidades, incluindo manuais, para serem utilizados de forma integral. O artigo discute a instrumentalização de um recém-chegado ao ensino superior em design, a partir do estudo de caso de práticas didáticas utilizadas na disciplina Laboratório de Criação da Universidade Veiga de Almeida, no Rio de Janeiro, Brasil.
O laboratório se concentra no desenvolvimento do potencial criativo dos alunos. Para isso, é incentivada a utilização do caderno de rascunhos, reunindo as ideias e imagens daquele que o constrói, fundando um repertório e prática para o futuro designer.
New Ways of Teaching at the new campus
Authors: Singh Madhavi
Published: October 2019

This perspective article shares the experience of my teaching role as a clinical faculty in the newly designed regional campus curriculum of the inaugural class at the University Park.

I have no Conflict of Interest to share.
Da “representação das sobras” à “reantropofagia”
Authors: Goldstein Ilana Seltzer
Published: October 2019

Tanto a Antropologia como a História da Arte alargaram seus repertórios conceituais e sua abrangência geográfico-temporal, aumentando suas interfaces. A partir deste diálogo interdisciplinar, o presente artigo trata de obras e projetos que floresceram a partir de 2015, nos quais questões, visualidades e criadores indígenas adentraram o sistema das artes no Brasil. Com base em pesquisa de campo e análise de catálogos, são apresentadas as exposições A queda do céu (2015), Da Pedra Da Terra Daqui (2015), Adornos do Brasil indígena. Resistências contemporâneas (2017), Reantropofagia (2019) e Vaievem (2019), entre outras; artistas indígenas como Denilson Baniwa, Jaider Esbell, Daiara Tukano, Ibã Huni Kuin e Gustavo Caboco. Conclui-se que a arte constitui uma nova arena na luta dos povos indígenas por visibilidade, tanto em termos políticos como estéticos. Por outro lado, constata-se grande distância entre os dois universos: estabelecer conexões e traduções permanece um grande desafio.
PENGARUH KETERSEDIAAN INFORMASI PUBLIK DAN MONITORING CONTROL TERHADAP HUBUNGANANTARA SELF EFFICACY DAN ESCALATION OF COMMITMENT
Authors: Maulita Maulita
Published: October 2019

Penelitian ini bertujuan untuk menguji pengaruh ketersediaan informasi publik dan monitoring control terhadap hubungan antara self efficacy dan escalation of commitment. Individu yang memiliki self efficacy tinggi dihipotesiskan akan memiliki kecenderungan untuk melakukan eskalasi komitmen dibandingkan Individu yang memiliki self efficacy rendah. Individu yang memiliki self efficacy tinggi eskalasi komitmennya akan mampu dikurangi dengan ketersediaan informasi publik dan monitoring control. Untuk menguji hal tersebut dilakukan eksperimen 2x2x2 between subject dengan melibatkan 80 mahasiswa Pascasarjana Magister Manajemen Universitas Gadjah Mada. Hasil penelitian menunjukkan bahwa individu yang memiliki self efficacy tinggi ternyata mempunyai kecenderungan untuk melakukan eskalasi komitmen. Adapun Monitoring control ternyata mampu mengurangi eskalasi komiten pada individu yang memiliki self efficacy tinggi, namun ketersediaan informasi publik ternyata tidak mampu mengurangi eskalasi komitmen pada individu yang memiliki self efficacy tinggi.
TINGKAT PERMINTAAN SUKUK RITEL: ANALISIS FAKTOR INTERNAL DAN EKSTERNAL
Authors: Muhammad Rifqi , Permana Eka Natha , Nugraheni Peni
Published: October 2019

Sukuk is one of the investment instruments that attract Muslim investors who want to invest in accordance with sharia principles. The demand for sukuk is relatively high every time a sukuk is issued. The study aims to examine the factors influencing the demand of retail sukuk issued by government. Independent variables consist of sukuk price, BI rate, inflation rate and rate of return of Mudharaba investment accounts.  Retail sukuk SR-005 is choosen as dependent variable because of the highest average investment per investor during ten years of retail sukuk issuance. The data is taken from February 2013 to February 2016 and analysed using panel data regression. The results indicate that BI rate has negative influence on the demand of retail sukuk SR-005 while sukuk price, inflation rate and rate of return of mudharaba investment accounts do not influence the demand of retail sukuk SR-005. This study is expected to contribute to the scientific development of Islamic finance, especially the study of sukuk.