bluuebunny/crossref_metadata_2025 huggingface dataset:
Co-management of protected areas: a property rights point of view
Authors: Truc Phuong Van Ngoc
Published: March 2019

Co-management is an increasinglyused tool in natural resource management around the world, in situations where the protection of natural resources has to ensure the livelihoods of local people who have traditionally relied upon these resources. It is a mechanism of sharing power in decision-making and sharing the benefits of natural resources between stakeholders (usually governments and local communities). In Vietnam, several governmental pilot projects on comanagement of PAs were launched over the past decade, with the purpose of eventually scaling up as a national policy. Nationwide, co-management initiatives have been implemented for protected areas (PAs). Therefore, a full assessment of the PAs co-management paradigm is needed. This paper aims to increase the understaing of the ''state-of-the-art" of the management that exist within PAs and to direct attention to the issues associated with property rights in conservation. It assesses the comanagement of PAs in terms of concepts, practices and implications that relate to indigenous peoples and community land and resource rights. The paper begins with a theoretical discussion about comanagement of PAs and property rights. Next, it analyzes a wide range of biodiversity-rich countries that have different time schedules for applying comanagement in PAs. The analysis also focusses on various types of PAs such as forests, game reserves, pastureland reserves, marine PAs, etc. It then encompasses experienced cases of community based forest management in Vietnam that may be applicable to co-managed PAs. This paper reveals that co-management could be an effective tool for PAs management as long as the property rights of local communities and their members are defined clearly and satisfactorily. Among them, land ownership/land-use rights have the most influence on the nature of the co-management agreements. The co-management of PAs officially acknowledges the rights of locals who live in and around forests, to enter, use and manage PAs. These management rights of communities are collective rights rather than individual rights, while ultimately management rights belong to governments. Governments retain the rights to control forest resources; to make decisions about forest products with high value; and to approve policies related to the PA management plan, exploitation license, development of forest management guidelines. In conclusion, governments usually do not empower local communities regarding their exclusion and alienation rights.
农机常见传动件使用维护需注意事项
Authors: 周 维耀
Published: March 2019

农业机械设备是一种专业的生产工具,不仅技术含量较高,组成结构也较为复杂。而传动件是农机机械中必不可少的关键零部件,其会随着使用时间的增加而出现不同程度的磨损,进而影响机械性能。对此,必须对传动件进行合理的维修与养护,延长设备使用寿命。
影响同心县农业发展的气象灾害及农业保险气象服务探讨
Authors: 杨 彦忠 , 叶 风琴
Published: March 2019

随着经济发展规模的增长,气象因素导致的经济损失也在上升,保险业如何与气象服务“联姻”,求取互补共进,相得益彰,共谋发展,是一个值得探讨的问题。长期以来,同心县气象局为本县农业保险提供了大量有效的气象服务,切实发挥了气象监测预警在农业保险防灾减损方面的作用,提高了农业保险系统应对重大、突发气象灾害的应对能力。本文分析了同心县的气象灾害和农业保险特点,气象部门利用技术资源优势,在农业保险合理模式的架构下,为农业保险提供优质服务,可促进农业保险的良性发展,为同心县的农业安全建立一张“安全网”。
林业病虫害防治技术与方法
Authors: 梁 永靖
Published: March 2019

近年来,随着我国经济水平的不断发展进步,林业产业已经在经济总体水平中占据了较大的比重。然而林业产业的发展却受到许多外界因素的影响,林业病虫害问题就是影响林业产业发展的一个关键性因素。随着我国人工种植树林面积的逐渐增加,林业病虫害对于林业的危害也越来越严重,林业病虫害的防治是一项综合性的长期工作,但我国的林业病虫害防治工作始终处于被动的救灾状态。本文主要是对林业病虫害防治技术与方法进行了分析,探讨了林业病虫害出现的原因,提出了防治病虫害的具体措施。
Bridging the Gap Between Access and Persistence in Higher Education in the Caribbean
Authors: Stewart Saran , Paterson Nicola , Ferguson Shenhaye
Published: March 2019

Currently, Caribbean higher education institutions benefit from relatively high retention rates among students, however they have seen a rise in low on-time, graduation rates. Given this context, this study applies Tinto’s theoretical framework (1975) for understanding and identifying the causes of low student retention and graduation rates at a regional university in Jamaica. Within a United States context, this institution would be considered a predominantly minority-serving institution such as historically black colleges and universities (HBCU) given its large population of Black students. Analysing data from the university’s Student Experience Survey, the results indicate that, academic performance and financial issues were leading factors to non-returning students and low graduation rates. The findings reflect that full-time status is the strongest predictor of GPA and on-time graduation. To bridge the gap between access and persistence, we suggest strategies to improve issues of inequities and academic engagement at both the individual and institutional level.
The Experiences of Lesbian, Gay, Bisexual, and Queer International Students
Authors: Nguyen Hoa , Grafsky Erika , Lambert-Shute Jennifer
Published: March 2019

There is a significant research gap in understanding the experiences of lesbian, gay, bisexual, and queer (LGBQ) international students. The purpose of this systematic review is to explore what we currently know about LGBQ international students, by synthesizing peer-reviewed and gray literature that focused on this intersection of sexual and cultural diversity. A total of 10 records met the inclusion criteria and were examined. Out of these 10 records, 6 were empirical studies. Findings from this analysis highlighted the salience of: (a) identity formation and migration, (b) the double barrier of being an international student and LGBQ, and (c) multi- layered discrimination and heteronormativity. We then provide suggestions for future research and implications for mental health professionals, educators, and university administrators.
Prelacteal feeds: Prevalence and associated factors as seen at a University Teaching Hospital, Southeast Nigeria
Authors: Onyearugha Chukwuemeka Ngozi , Okoronkwo Nneka Chioma
Published: March 2019

Background: Administration of prelacteal feeds (PLFs) is a common practice among mothers which has no scientific basis. It israther fraught with disadvantages, particularly to the newborn. It constitutes a major impediment to the commencement of exclusivebreastfeeding which is the foundation for proper infant nutrition. Aim: The objective of this study was to determine the prevalence,types, and reasons for administration of PLF. Materials and Methods: A cross-sectional descriptive study was conducted inthe Well Baby Clinic of a Abia State University Teaching Hospital, Aba, Nigeria. Data on the sociodemographic characteristics,utilization of health services, mode of delivery, and administration of PLF were obtained from mothers. Results: A total of 444mothers were enrolled over the study period, of which 43.2% administered PLF. Cesarean section delivery and women aged29–39 years were significantly associated with PLF administration. Glucose water constituted the predominant PLF administered.Health workers were the most influential factor in the administration of PLF. Delayed lactation constituted the major reason forthe administration of PLF. Conclusion: Sustained education of the populace and the training and retraining of health workers,particularly obstetric staff, could help to curb PLF administration.
RANCANG BANGUN SISTEM PENELITIAN DAN PENGABDIAN MASYARAKAT UNIVERSITAS BANGKA BELITUNG BERBASIS WEB SERVER
Authors: Putra Ghiri Basuki
Published: March 2019

Tridharma Perguruan Tinggi adalah Pengajaran, Penelitian dan Pengabdian Masyarakat yang wajib dilaksanakan oleh setiap dosen. Sumber dana untuk Penelitian dan Pengabdian Masyarakat bagi dosen perguruan tinggi ada bermacam macam, mulai dari tingkat Perguruan Tinggi maupun dari Kementerian Riset dan Pendidikan Tinggi. Di Universitas Bangka Belitung (UBB), proses pengajuan proposal penelitian dan pengabdian bagi dosen masih dilakukan secara manual dan belum ada sistem online untuk mendukung dan mempermudah dalam proses pengajuan proposal dan penilaian proposal. Sedangkan untuk tingkat nasional sudah menggunakan sistem yang bernama Sistem Informasi Penelitian dan Pengabdian kepada Masyarakat atau disingkat simlitabmas yang bisa digunakan oleh semua dosen di Indonesia dalam mengajukan proposal penelitian dan pengabdian masyarakat untuk mendapatkan dana. Dalam rancang bangun sistem penelitian dan pengabdian ini, dibangun sistem seperti simlitabmas dari Risetdikti untuk memudahkan dosen dalam mengajukan proposal penelitian tingkat Universitas secara online serta dapat dilakukan penilaian proposal secara online oleh para aksesor tingkat universitas juga secara online. Dalam penelitian ini, dirancang sebuah Sistem Penelitian dan Pengabdian Dosen Berbasis Webserver secara online. Sistem ini dibuat dengan sistem terintegrasi berbasis web menggunakan PHP dan database MySQL. Sehingga tanpa mencetak proposal dan menghemat biaya cetak dan kertas, dosen dapat melakukan pengajuan proposal penelitian dan pengabdian masyarakat.
PENGHITUNG SETPOINT DOWN COUNTER OTOMATIS PADA LAMPU LALU LINTAS DENGAN MENGGUNAKAN PANEL LED DOT MATRIX
Authors: Aji Galih Mustiko , Purwiyanto Purwiyanto
Published: March 2019

Down counter pada lampu lalu lintas memberikan informasi kepada pengendara tentang lama waktu nyala atau mati lampu, sehingga pengendara tidak lengah yang dapat menyebabkan kemacetan dan kecelakaan. Instalasi down counter membutuhkan nilai setpoint yang berasal dari kontroler lampu lalu lintas atau diset secara manual oleh teknisi. Desain downcounter yang mampu berdiri sendiri memungkinkan penggunaan kabel yang lebih sedikit dan kemudahan pada saat perubahan waktu dan perawatan lampu lalu lintas. Dalam penelitian ini sebuah downcounter yang mampu menghitung sendiri nilai setpoint dirancang dengan menggunakan penampil panel led dot matrix berukuran 32x32 pixel. Down counter mampu menampilkan angka sebanyak 2 digit dari 99 sampai dengan 00.
ANALISA PENGENDALI HYBRID SLIDING MODE CONTROL DAN PID UNTUK MENGENDALIKAN CONCENTRATION PADA ISOTHERMAL CONTINUOUS STIRRED TANK REACTOR (CSTR)
Authors: Faizal Ahmad , Mursyitah Dian , Imaredah Ewi , Ikhsyan Muhammad
Published: March 2019

Sistem di industri sering terjadi kesalahan dalam mencapai kinerja atau performansi yang diinginkan. Salah satunya pada sistem isothermal CSTR dimana sistem ini belum mampu bekerja sesuai set point yang diinginkan 1 g.mol/litter, untuk mencapai set point maka digunakan pengendali Sliding Mode Control yang di  Hybrid dengan PID yang di identifikasi dengan metode FOPDT untuk menurunkan nilai error steady state. Dari pengendali tersebut didapat hasil  hasil dimana Sliding Mode Control Hybrid PID belum mampu mencapai nilai set point 1 g.mol/litter dengan t = 3.0446 detik.
Perancangan Pengendalian Hover Quadcopter Menggunakan Pengendali Hybrid Fuzzy Dan Proportional Integral Derivative (PID)
Authors: Faizal Ahmad , Ismaredah Ewi , Ridho Imam Fadjar
Published: March 2019

Sistem hover quadcopter memiliki kelebihan untuk dapat terbang melayang bebas dan dengan mudah karena memiliki bentuk yang kecil dan ringan sehingga mudah. Namun karena memiliki massa yang ringin quadcopter juga memiliki kelemahan tersendiri yaitu mudah terkena gangguan seperti terpaan angin. Ini tentu saja menjadi masalah tersendiri pada quadcopter untuk pengaplikasiannya. Untuk mensimulasikan quadcopter digunakan software MATLAB R2013a. Dengan metode pengendali yaitu hybrid fuzzy-PID, pengendali logika fuzzy adalah kendali cerdas yang dapat berinteraksi dengan kondisi yang terjadi dengan memasukan rules. Hasil dianalisa pengendali hybrid fuzz-PID menunjukan respon yang bagus dan cepat dibandingkan dengan pengendali logika fuzzy saja. Pada pengendali fuzzy menunjukan berhasil mencapai setpoint 0.1 rad, namun dengan respon time yang lebih lama yaitu pengendali fuzzy  pada posisi sudut roll dengan respon 3.2088 detik, posisi sudut pitch yaitu 3.2562 detik dan pada posisi sudut yaw yaitu 3.3045 detik. Sedangkan pada hasil respon pengendali hybrid fuzzy-PID saat posisi sudut roll yaitu 0.02896 detik, posisi sudut pitch yaitu 2.3138 detik dan pada posisi sudut yaw yaitu 0.2611 detik. Namun saat diberi gangguan, pengendali fuzzy menunjukan respon yang lebih baik dibandingkan pengendali hybrid fuzzy-PID. Pengendali fuzzy saat diberi gangguan didetik 10 dan 11 berhasil mengatasi gangguang tanpa terjadi penyimpangan. Sedangkan saat menggunakan pengendali hybrid fuzzy-PID terjadi penyimpangan yang cukup lama kembali ke setpoint awal yaitu lebih kurang selama 30 detik
MENINGKATKAN HASIL BELAJAR BIOLOGI PADA MATERI KONSEP KROMOSON DAN GEN DNA DENGAN MENGGUNAKAN METODE PEMBELAJARAN KOOPERATIF TIPE MAKE A MATCH PADA SISWA KELAS XII SMA NEGERI 9 PEKANBARU
Authors: Suryanti Irna
Published: March 2019

This research is motivated by the lack of learning outcomes biology class XII at SMA Negeri 9 Pekanbaru. This study aims to improve the learning outcomes of biology in studying material concept chromosomes and DNA genes class XII at SMA Negeri 9 Pekanbaru use of cooperative learning method types make a match. The subjects were all class XII students of SMA Negeri 9 Pekanbaru totaling 30 people, in the academic year 2016-2017. Form of research is classroom action research. The research instrument consists of instruments and instrument performance data collection activity observation sheet form teacher and student activity. Based on the observation of the first symptoms of student learning outcomes gained an average of 52.3 medium category with classical completeness 30%. Then based on achievement test results in the first cycle which indicates that the level of student learning outcomes achieved an average of 61.7 medium category with classical completeness 53%. While on the second cycle increased achieve the learning outcomes of students gained an average of 73 including both categories with classical completeness 90%. This success is due to implement cooperative learning make a match, student activities to become more active, which means students tend to be positive in the learning process given by the teacher. Under these conditions, the enrollment rate will increase and in turn can improve student learning outcomes.
PENERAPAN STRATEGI PEMBELAJARAN GO TO YUOR POST UNTUK MENINGKATKAN HASIL BELAJAR IPS SISWA KELAS VI SDN 024 TARAI BANGUN KECAMATAN TAMBANG KABUPATEN KAMPAR
Authors: Yendri Delfi
Published: March 2019

This research is motivated by the poor results of Study Social Sciences (IPS) Student Class VI SDN 024 Tarai Bangun Kecamatan Tambang. This study aims to determine the resulting increase studying social sciences (IPS) student class VI SDN 024 Tarai Bangun Kecamatan Tambang through the application of learning strategies go to yuor post, which carried out for 1 month. The subjects were VI SDN 024 Tarai Bangun Kecamatan Tambang by the number of students as many as 38 people. Form of research is classroom action research. The research instrument consists of instruments and instrument performance data collection activity observation sheet form teacher and student activity. Based on the research, the conclusion to this study is based on the analysis and discussion in chapter IV can be concluded that the application of learning strategies go to yuor post can improve learning outcomes in the subject of social sciences grade VI SDN 024 Tarai Bangun Kecamatan Tambang. Evidenced by the increase in learning outcomes before action to the first cycle, to cycle II. Before the act of student learning outcomes classified as unresolved with an average of 59%, an increase in the first cycle by an average of 69%. While the results of student learning in the second cycle must be increased by an average of 75% with the category completed.
MENINGKATKAN MOTIVASI BELAJAR MATEMATIKA MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) SISWA KELAS VI SD NEGERI 002 TELUK NILAP KUBU BABUSSALAM
Authors: Asih Joeni
Published: March 2019

This research is motivated by the low motivation of student learning in the lesson of Math class VI SD Negeri002 Teluk Nilap Kubu Babussalam. This study aims to improve students' learning motivation in the lesson ofClass VI SD Negeri 002 Teluk Nilap Kubu Babussalam by applying cooperative learning model of teams gamestournament (TGT) type. The subjects of this study are all students of class VI SD Negeri 002 Teluk Nilap KubuBabussalam which amounted to 29 people. The form of research is classroom action research. The instrument ofthis research consisted of performance instrument and data collection instrument in the form of observationsheet of teacher activity and student activity. Based on the results of analysis and discussion can be concludedthat through cooperative learning model type TGT can improve students' learning motivation Math class SDNegeri 002 Teluk Nilap Kubu Babussalam students. Based on the results of the study note that the student'slearning motivation before the action in a classical reach the average percentage of 36.2% is at the interval 0-40%. The first cycle of the first meeting indicates that the students 'level of learning motivation classically onlyreaches the average 51.4% percentage in the 40% -55% interval is quite high and in the second meeting thestudents' learning motivation is classically reaching the percentage average of 56, 9%, are at a 40-55% intervalquite high. While in the first cycle of the first encounter increased with the acquisition of the average valueclassically 71% are at intervals of 56% -75% are high and at the second meeting is klasikal get the averagevalue of 83.4% percentage, is at interval 76- 100% with very high category.
PENERAPAN STRATEGI PEMBELAJARAN LIGHTENING THE LEARNING CLIMATE UNTUK MENINGKATKAN MOTIVASI BELAJAR PENDIDIKAN KEWARGANEGARAAN (PKN) SISWA KELAS V SDN 06 LUBUK DALAM KABUPATEN SIAK
Authors: Untung Untung
Published: March 2019

This research is motivated by the lack of motivation to learn citizenship education (Civics) student class V SDN06 Lubuk Dalam Kabupaten Siak. This study aims to find out the increase learning motivation citizenshipeducation (Civics) student class V SDN 06 Lubuk Dalam Kabupaten Siak through the lightening learningstrategies learning climate, held for 1 month. The subjects were class V SDN 06 Lubuk Dalam Kabupaten Siakthe number of students as many as 25 people. Form of research is classroom action research. The researchinstrument consists of instruments and instrument performance data collection activity observation sheet formteacher and student activity. Based on the research, the conclusion to this study is the use of learning strategieslightening the learning climate can improve students' motivation to learn civics class V SDN 06 Lubuk DalamKabupaten Siak. The above statement is supported by the results of the application of learning strategieslightening the learning climate motivation to learn civics. Where the first meeting of the first cycle is stillconsidered low by a total score of 104. The second meeting of the first cycle increased by a total score of 119, atthe first meeting of the second cycle also increases with total score of 149, student motivation was reached on atotal score of 166 or higher category. Motivation to learn civics class V students of SDN 06 Lubuk DalamKabupaten Siak reached on a total score of 166 or higher categories, and when viewed from the percentage ofstudents who demonstrate high motivation to learn there was 78.8%. So the research is successful, because theperformance indicators are being achieved.
UPAYA PENINGKATAN HASIL BELAJAR MATEMATIKA MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE SKRIP SISWA KELAS II SDN 016 BULUH KASAP DUMAI TIMUR
Authors: Robiati Robiati
Published: March 2019

The background of this research is the learning process is still centered on the teacher, the lesson using thelecture method, so that the students are less motivated in the learning process, the students are less enthusiasticand not actively inquiring in the delivery of learning materials. This study aims to improve teacher skills andstudent activities so as to improve student learning outcomes of grade II SDN 016 Buluh Kasap Dumai Timurusing cooperative learning model Scripts. This research is a classroom action research conducted in May 2012,the subject of this research is the second grader of SDN 016 Buluh Kasap Dumai Timur with amount of 33.Measuring tool used in this research is teacher activity, student activity, learning result, and mastery learning.The result showed that: (a) on the basic score of students who reached KKM 14 students (42.42%), UH I was 24students (72,72) and UH II was 29 students (87,87%) ; and (b) the result of learning mathematics of studentshave an increase on base score equal to 54,60 with low category, at UH I equal to 68,20 with medium category,and at UH II equal to 77,20 with high category. Based on the results of this study, it can be concluded thatcooperative learning model type of script can improve the learning outcomes of students of grade II SDN 016Buluh Kasap Dumai.
PENERAPAN METODE PEMBERIAN TUGAS UNTUK MENINGKATKAN KEMAMPUAN GURU DALAM MEMBUAT MEDIA PEMBELAJARAN SD NEGERI 010 PULAU TERAP KABUPATEN KAMPAR
Authors: Syamsurizal Syamsurizal
Published: March 2019

This research is a study of school action against the lack of ability of teachers in making learning media, for itapplied the method of giving tasks with the aim to improve the ability of teachers in making learning media. Thisresearch was conducted in SD Negeri 10 Pulau Terap, this research was conducted two cycles with stages:planning, implementation, observation, and reflection. The result of research stated that the ability of teachersin making learning media has increased. This is seen in the first cycle of 65% with good category and in thesecond cycle increased to 89% with very good category. Based on these data it can be concluded that theapplication of the method of assignment can improve the ability of teachers in making learning media.
PENERAPAN STRATEGI THE FIRING LINE UNTUK MENINGKATKAN HASIL BELAJAR PENDIDIKAN AGAMA ISLAM (PAI) PADA MATERI SIFAT JAIZ BAGI ALLAH SWT SISWA KELAS IV SDN 005 KOTO PERAMBAHAN KECAMATAN KAMPA KABUPATEN KAMPAR
Authors: Zulparis Zulparis
Published: March 2019

This research is a classroom action research. The formulation of the problem in this research is whether theapplication of the firing line strategy can improve the learning outcomes of Islamic religious education materialnatural of jaiz for Allah SWT grade IV students SDN 005 Koto Perambahan Kecamatan Kampa KabupatenKampar? This research aims to increase learning outcomes Islamic religious education grade IV SDN 005 KotoPerambahan Kecamatan Kampa Kabupaten Kampar through the strategy of the firing line. The research wasconducted two cycles. The data outlined are prior to action, in cycle I and cycle II. Each cycle is done in twomeetings. As for the stages in each cycle, that is 1) action planning/ preparation, 2) action implementation, 3)observation, and 4) reflection. Based on the research result of the application of the firing line strategy on PAIsubjects, it is known that there is an increase in learning outcome test from before action, cycle I to cycle II.Before the students learning outcomes were medium by percentage with an average of 56.8%, there is anincrease in learning outcomes from cycle I to cycle II. In the cycle I, students learning outcomes were 72.2% inthe medium category. In the cycle II, students learning outcomes were 85,2% in the good category. From theabove data it is known that the results of student learning on the subjects of Islamic religious education on thematerial nature of jaiz for Allah SWT can be increased through the application of the strategy of the firing line.
PENINGKATAN KETERAMPILAN MENDENGARKAN CERITA ANAK MELALUI MEDIA AUDIO VISUAL PADA SISWA KELAS I SDN 006 BENCAH KELUBI KABUPATEN KAMPAR
Authors: Mudawarnis Mudawarnis
Published: March 2019

This research is motivated by the low listening skill of class I SDN 006 Bencah Kelubi Kampar. The purpose ofthis research is to improve the listening skill of children's story of grade 1 SDN 006 Bencah Kelubi Kamparthrough the use of audio visual media. This research was conducted at SDN 006 Bencah Kelubi KamparDistrict, The subject of research is the first grade students with the number of students as many as 28 people.The form of research is classroom action research. The research instrument is a test of story listening skills. Theresults of the average score of students' reading skill increased from 66.8 to 72.3 and increased to 73.8 thenincreased to 77.1, and increased again to 83.6. Based on the research results, it can be concluded that the use ofaudio visual media can improve students' listening skills.
KEMAMPUAN MENGHITUNG BESAR ARUS DAN BESAR TEGANGAN PADA RANGKAIAN LISTRIK ARUS SEARAH SISWA KELAS X JURUSAN ELEKTRONIKA INDUSTRI SMK NEGERI 2 PEKANBARU
Authors: Yusanti Ronny
Published: March 2019

This study aims to determine and explain the level of ability to answer the problems according to the procedureof solving the problem of class X students Elementary Electronics Elementary SMK Negeri 2 Pekanbaru evensemester of the academic year 2017/2018. The research method is descriptive research. The research was doneby using problem solving test for four questions. Data source 30 students. The results showed that the level ofability of students of class X Basic Electronics Elementary SMK Negeri 2 Pekanbaru in answering the problemsolving problem is in the range 70.00 - 84.99. Thus, the problem solving skills of students of class X BasicElectronics Elementary SMK Negeri 2 Pekanbaru categorized good.
PENERAPAN MODEL PEMBELAJARAN BERDASARKAN MASALAH UNTUK MENINGKATKAN HASIL BELAJAR PKN SISWA KELAS VI SD NEGERI 008 SUMBER JAYA KECAMATAN SINGINGI HILIR
Authors: Muhasim Muhasim
Published: March 2019

This research is motivated because the learning outcomes of student Civics education are still very low. Thisstudy aims to improve the learning outcomes of the sixth graders Civics Education SD Negeri 008 Sumber Jaya,Kecamatan Singingi Hilir, Kabupaten Kuantan Singingi. This study uses classroom action research consisting oftwo cycles. Each cycle consists of 4 stages. From the results of the data analysis, the teacher activity in the firstcycle of the meeting got a percentage of 60% and at the second meeting increased to 70%. Cycle II meetingthree, the value of the teacher's presentation was 80% and increased at the fourth meeting to 90%. Studentactivity in the first cycle, got a percentage of 55% and became 65% at the meeting of two cycles I. Cycle IImeeting three, student activity was 80% and became 85% at the fourth meeting. Student learning outcomes areseen from the baseline score, the percentage of completeness is 46.42%, increased after a cycle I daily review of64.28%, in the second cycle daily test student learning outcomes again increased to 85.71% with completecriteria. With the results above, it can be concluded that the application of problem-based learning models canincrease the learning outcomes of Civics Education of SD Negeri 008 Sumber Jaya, Kecamatan Singingi Hilir,Kabupaten Kuantan Singingi.
PENERAPAN STRATEGI MATHEMATICAL INVESTIGATION UNTUK MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA KELAS VI SD NEGERI 024 TARAI BANGUN KECAMATAN TAMBANG KABUPATEN KAMPAR
Authors: Yenti Evi
Published: March 2019

This research was motivated by the low learning outcomes of MTK class VI students of SDN 024 Tarai Bangun KecamatanTambang Kabupaten Kampar. This study aims to improve student learning outcomes in mathematics learning throughmathematical investigation strategies in the sixth grade students of SDN 024 Tarai Bangun Kecamatan Tambang KabupatenKampar. The subjects of this study were all sixth grade students of SDN 024 Tarai Bangun Kecamatan Tambang KabupatenKampar, totaling 18 people, in 2017. The form of this research was classroom action research. This research instrumentconsists of performance instruments and data collection instruments in the form of observation sheets of teacher activitiesand student activities. Based on the results of the research and discussion, it can be concluded that the MathematicalInvestigation learning strategy can improve the mathematics learning outcomes of the sixth grade students of SDN 024 TaraiBangun Kecamatan Tambang Kabupaten Kampar in 2017. On the basic score, the results of learning were 7 people whoachieved KKM or 38, 89% with an average learning outcome of 63. In the first cycle of mathematics learning outcomesobtained by students is the number of students who achieve mastery in learning is 72.22%. The average student learningoutcomes classically in cycle I is 71 or 13 people who achieve KKM and categorized as incomplete. Whereas in the secondcycle there were 17 people who reached the KKM with a completeness percentage of 94.44%. The implementation of theaction in the second cycle is more smooth when compared to the implementation of the actions in the first cycle. It can beseen that there was an increase from the basic score to the first cycle as many as 6 people while from the first cycle to thesecond cycle there were 4 people who achieved the KKM completeness
PENERAPAN MODEL PEMBELAJARAN DUA TINGGAL DUA TAMU UNTUK MENINGKATKAN MOTIVASI BELAJAR PADA PEMBELAJARAN TEMATIK SISWA KELAS II SDN 31 BATU BULEK KECAMATAN LINTAU BUO UTARA KABUPATEN TANAH DATAR
Authors: Junaida Junaida
Published: March 2019

This research is motivated by the low learning motivation of grade II students of SDN 31 Batu Bulek. This study aims toimprove students' learning motivation in thematic learning with the theme of caring for animals and plants through learningtwo live two guests in class II SDN 31 Batu Bulek. The subjects of this study were all students of grade II SDN 31 Batu Bulek,amounting to 13 people in 2018. The form of research was classroom action research. This research instrument consists ofinstruments of performance and data collection instruments in the form of observation sheets of student activities and teacheractivities. Based on the results of the research and discussion, the application of the two learning models only two guests canincrease the learning motivation of class II SDN 31 Batu Bulek. For more details, it can be seen in the following description:The activity of teachers in the first cycle got a score of 19 in the perfect category while in the second cycle got a score of 23in the very perfect category Student activity in the first cycle got a score of 37 in the low category while in cycle II got a scoreof 56 with high category. Learning motivation of students in the first cycle got a score of 37 in the low category while in thesecond cycle got a score of 63 in the high category. In the first cycle it has not been said to be successful while in the secondcycle the research has succeeded with a success indicator of 80.8% exceeding the performance indicators that have been set.So that the research hypothesis that reads "With the application of the two learning models, only two guests can improvelearning motivation at thematic learning theme of caring for animals and plants class II SDN 31 Batu Bulekcan be accepted.
Secure Image Steganography Algorithm Based on DCT with OTP Encryption
Authors: Setiadi De Rosal Ignatius Moses , Rachmawanto Eko Hari , Sari Christy Atika
Published: March 2019

Rapid development of Internet makes transactions message even easier and faster. The main problem in the transactions message is security, especially if the message is private and secret. To secure these messages is usually done with steganography or cryptography. Steganography is a way to hide messages into other digital content such as images, video or audio so it does not seem nondescript from the outside. While cryptography is a technique to encrypt messages so that messages can not be read directly. In this paper have proposed combination of steganography using discrete cosine transform (DCT) and cryptography using the one-time pad or vernam cipher implemented on a digital image. The measurement method used to determine the quality of stego image is the peak signal to noise ratio (PSNR) and ormalize cross Correlation (NCC) to measure the quality of the extraction of the decrypted message. Of steganography and encryption methods proposed obtained satisfactory results with PSNR and NCC high and resistant to JPEG compression and median filter. Keywords—Image Steganography, Discrete Cosine Transform (DCT), One Time Pad, Vernam, Chiper, Image Cryptography
Perancangan Alat Pelacak Lokasi Dalam Mengantisipasi Penculikan Anak
Authors: Sembiring Zulfikar , Muliono Rizki
Published: March 2019

Kasus penculikan anak selalu meningkat dari tahun ke tahun berdasarkan sumber dari Komisi Perlindungan Anak Indonesia (KPAI). Kasus ini juga pernah menjadi isu nasional di beberapa media masa. Banyak sekali faktor penyebab kasus ini bisa terjadi. Selain itu beberapa cara pencegahan telah disarankan dan digunakan dalam mengantisipasi terjadinya tindakan penculikan anak. Namun dari beberapa cara pencegahan yang telah disarankan masih terkendala oleh jarak dan waktu. Salah satunya bagaimana orang tua dapat memantau posisi lokasi anak pada satu waktu tertentu. Hal ini pasti sangat sulit dilakukan kalau tanpa menggunakan teknologi. Oleh karena itu penulis tertarik melakukan penelitian untuk menghasilkan satu rancangan alat pelacak lokasi Â anakÂ  yang dapat mengantisipasi penculikan anak. Alat pelacak lokasi ini dirancang dengan menggunakan beberapa komponen yaitu arduino, GPS dan GPRS modul, SIM card, smartphone android dan aplikasi google maps yang dirancang sedemikian rupa menjadi alat pelacak Â yang dapat memberikan informasi lokasi. Informasi lokasi ini dapat dilihat oleh orang tua Â melalui perangkat smartphone android dengan aplikasi google maps. Sehingga orang tua dapat memantau kapan saja lokasi anak mereka dengan mudah sehingga dapat menghemat waktu, jarak dan biaya. Ada beberapa tahapan yang digunakan untuk menghasilkan alat pelacak lokasi ini dapat bekerja dengan baik yaitu persiapan perangkat keras dan lunak yang dibutuhkan, perancangan rangkaian perangkat keras, pembuatan kode program sesuai rancangan rangkaian dan pengujian perangkat keras dan lunak. Hasil akhir dari penelitian alat pelacak lokasi ini yaitu menghasilkan informasi lokasi yang akurat, aplikasi yang sangat mudah digunakan serta komponen perangkat keras dan perangkat lunak dapat berjalan dengan baik.
Map Calculation of the Shapley-Shubik Voting Powers: An Example of the European Economic Community
Authors: Ali Rushdi Ali Muhammad , Ba-Rukab Omar Mohammed
Published: March 2019

The paper utilizes the Karnaugh map in a pedagogical calculation of the Shapley-Shubik index of voting power, which is perhaps the most prominent such index for managerial, political, and engineering voting systems. The Karnaugh map has features that allow it to readily implement this calculation, namely: (a) it can conveniently represent pseudo-switching functions of the form g= B_2^n →R, (b) it can immediately detect the number of orderings in going from one of its configurations (cells) to another, and (c) it visually identifies a pair of configurations that is critical w. r. t. a certain voter, which are a primitive winning coalition of which this voter is a member and a corresponding primitive losing coalition that results when this voter defects. The paper offers a detailed description of these three features and of the associated calculations using the celebrated system of the European Economic Community as a running example.
An Overview of Various Importance Measures of Reliability System
Authors: Amrutkar Kalpesh P. , Kamalja Kirtee K.
Published: March 2019

One of the purposes of system reliability analysis is to identify the weaknesses or the critical components in a system and to quantify the impact of component’s failures. Various importance measures are being introduced by many researchers since 1969. These component importance measures provide a numerical rank to determine which components are more important to system reliability improvement or more critical to system failure. In this paper, we overview various components importance measures and briefly discuss them with examples. We also discuss some other extended importance measures and review the developments in study of various importance measures with respect to some of the popular reliability systems.
A Comparison of Start-Up Demonstration Test Procedures Based on a Combinatorial Approach
Authors: Gera Amos E.
Published: March 2019

A comparative study is presented of various start-up demonstration procedures based on a combinatorial approach. The expected number of required tests and the probability of accepting the tested unit are derived using a set of auxiliary functions. A constrained optimization problem is solved for minimizing the number of required tests subject to some confidence level requirements. The variables for this optimization include the total number of successes, failures, and the maximal lengths of runs of successes and failures. Various extensions to scan statistic-based and weighted tests are included and also to the testing of several units in parallel. The alternative Markov Chain embedding approach might involve in some cases the inversion of very large matrices. This disadvantage does not exist here.
Multi Objective Simulated Annealing Approach for Facility Layout Design
Authors: Turgay Safiye
Published: March 2019

Facility layout design problem considers the departments’ physcial layout design with area requirements in some restrictions such as material handling costs, remoteness and distance requests. Briefly, facility layout problem related to optimization of the layout costs and working conditions. This paper proposes a new multi objective simulated annealing algorithm for solving of the unequal area in layout design. Using of the different objective weights are generated with entropy approach and used in the alternative layout design. Multi objective function takes into the objective function and constraints. The suggested heuristic algorithm used the multi-objective parameters for initialization. Then prefered the entropy approach determines the weight of the objective functions. After the suggested improved simulated annealing approach applied to whole developed model. A multi-objective simulated annealing algorithm is implemented to increase the diversity and reduce the chance of getting layout conditions in local optima.
Image Denoising Based on Wavelet Transform using Visu Thresholding Technique
Authors: Koranga Pushpa , Singh Garima , Verma Dikendra , Chaube Shshank , Kumar Anuj , Pant Sangeeta
Published: March 2019

The image often contains noises due to several factors such as a problem in devices or due to an environmental problem etc. Noise is mainly undesired information, which degrades the quality of the picture. Therefore, image denoising method is adopted to remove the noises from the degraded image which in turn improve the quality of the image. In this paper, image denoising has been done by wavelet transform using Visu thresholding techniques for different wavelet families. PSNR (Peak signal to noise ratio) and RMSE (Root Mean Square Error) value is also calculated for different wavelet families.
Theoretical Study of Heat Transfer on Peristaltic Transport of Non-Newtonian Fluid Flowing in a Channel: Rabinowitsch Fluid Model
Authors: Singh U. P. , Medhavi Amit , Gupta R. S. , Bhatt Siddharth Shankar
Published: March 2019

The present investigation is concerned with the problem of heat transfer and peristaltic flow of non-Newtonian fluid using Rabinowitsch fluid model through a channel under long wavelength and low Reynolds number approximation. Expressions for velocity, pressure gradient, pressure rise, friction force and temperature have been obtained. The effect of different parameters on velocity, pressure gradient, pressure rise, streamlines, friction force and temperature have been discussed through graphs.
Experimental Assessment of an Electrofilter and a Tandem Positive-Negative Corona Charger for the Measurement of Charged Nanoparticles formed in Selective Catalytic Reduction Systems
Authors: Schwelberger Matthias , Mamakos Athanasios , Fierz Martin , Giechaskiel Barouch
Published: March 2019

Onboard measurement of non-volatile particle number (PN) emissions with portable emissions measurement systems (PEMS) was introduced for the type-approval of passenger cars in Europe since 2017 and is foreseen for heavy-duty (HD) vehicles in 2021. First studies on the performance of PN-PEMS with HD engine exhaust revealed larger differences between established PN-PEMS techniques than what was observed for passenger cars. Particles forming in selective catalytic reduction (SCR) systems for NOx of late technology HD engines have recently been identified as a potential reason for the observed differences. The formed particles have a size distribution peaking below the regulatory limit of 23 nm and most importantly acquire high (more than one) positive charges at the elevated exhaust temperatures. Precise measurement of such highly charged nanosized particles with PN-PEMS instrumentation utilizing diffusion charger (DC) based counters requires proper conditioning of these charges. Two approaches were investigated in this study: (a) an electrofilter (EF) to completely remove charged particles below the regulated size and (b) a tandem negative-positive corona (TC) charger to directly condition pre-charged particles. The two technical solutions were tested alongside the unmodified DC-based PN-PEMS, a PN-PEMS utilizing a condensation particle counter (CPC) and a reference stationary PN system using exhaust of two SCR-equipped HD engines. The results confirmed that the particles forming in such SCR systems are responsible for the observed inconsistencies and that both technical solutions efficiently address the interferences of these pre-charged nanoparticles.
Novel Curcumin Inspired Bis-Chalcone Promotes Endoplasmic Reticulum Stress and Glioblastoma Neurosphere Cell Death
Authors: Sansalone Lorenzo , Veliz Eduardo A. , Myrthil Nadia G. , Stathias Vasileios , Walters Winston , Torrens Ingrid I. , Schürer Stephan C. , Vanni Steven , Leblanc Roger M. , Graham Regina M.
Published: March 2019

Glioblastoma (GBM) has a dismal prognosis and successful elimination of GBM stem cells (GSCs) is a high-priority as these cells are responsible for tumor regrowth following therapy and ultimately patient relapse. Natural products and their derivatives continue to be a source for the development of effective anticancer drugs and have been shown to effectively target pathways necessary for cancer stem cell self-renewal and proliferation. We generated a series of curcumin inspired bis-chalcones and examined their effect in multiple patient-derived GSC lines. Of the 19 compounds synthesized, four analogs robustly induced GSC death in six separate GSC lines, with a half maximal inhibitory concentration (IC50) ranging from 2.7–5.8 μM and significantly reduced GSC neurosphere formation at sub-cytotoxic levels. Structural analysis indicated that the presence of a methoxy group at position 3 of the lateral phenylic appendages was important for activity. Pathway and drug connectivity analysis of gene expression changes in response to treatment with the most active bis-chalcone 4j (the 3,4,5 trimethoxy substituted analog) suggested that the mechanism of action was the induction of endoplasmic reticulum (ER) stress and unfolded protein response (UPR) mediated cell death. This was confirmed by Western blot analysis in which 4j induced robust increases in CHOP, p-jun and caspase 12. The UPR is believed to play a significant role in GBM pathogenesis and resistance to therapy and as such represents a promising therapeutic target.
Tubulin βII and βIII Isoforms as the Regulators of VDAC Channel Permeability in Health and Disease
Authors: Puurand Marju , Tepp Kersti , Timohhina Natalja , Aid Jekaterina , Shevchuk Igor , Chekulayev Vladimir , Kaambre Tuuli
Published: March 2019

In recent decades, there have been several models describing the relationships between the cytoskeleton and the bioenergetic function of the cell. The main player in these models is the voltage-dependent anion channel (VDAC), located in the mitochondrial outer membrane. Most metabolites including respiratory substrates, ADP, and Pi enter mitochondria only through VDAC. At the same time, high-energy phosphates are channeled out and directed to cellular energy transfer networks. Regulation of these energy fluxes is controlled by β-tubulin, bound to VDAC. It is also thought that β-tubulin‒VDAC interaction modulates cellular energy metabolism in cancer, e.g., switching from oxidative phosphorylation to glycolysis. In this review we focus on the described roles of unpolymerized αβ-tubulin heterodimers in regulating VDAC permeability for adenine nucleotides and cellular bioenergetics. We introduce the Mitochondrial Interactosome model and the function of the βII-tubulin subunit in this model in muscle cells and brain synaptosomes, and also consider the role of βIII-tubulin in cancer cells.
On Crystal Mosaicity in Single Crystal Ni-Based Superalloys
Authors: Hallensleben Philipp , Scholz Felicitas , Thome Pascal , Schaar Helge , Steinbach Ingo , Eggeler Gunther , Frenzel Jan
Published: March 2019

In the present work, we investigate the evolution of mosaicity during seeded Bridgman processing of technical Ni-based single crystal superalloys (SXs). For this purpose, we combine solidification experiments performed at different withdrawal rates between 45 and 720 mm/h with advanced optical microscopy and quantitative image analysis. The results obtained in the present work suggest that crystal mosaicity represents an inherent feature of SXs, which is related to elementary stochastic processes which govern dendritic solidification. In SXs, mosaicity is related to two factors: inherited mosaicity of the seed crystal and dendrite deformation. Individual SXs have unique mosaicity fingerprints. Most crystals differ in this respect, even when they were produced using identical processing conditions. Small differences in the orientation spread of the seed crystals and small stochastic orientation deviations continuously accumulate during dendritic solidification. Direct evidence for dendrite bending in a seeded Bridgman growth process is provided. It was observed that continuous or sudden bending affects the growth directions of dendrites. We provide evidence which shows that some dendrites continuously bend by 1.7° over a solidification distance of 25 mm.
Preparation of Few-Layer Graphene by Pulsed Discharge in Graphite Micro-Flake Suspension
Authors: Gao Xin , Yokota Naoaki , Oda Hayato , Tanaka Shigeru , Hokamoto Kazuyuki , Chen Pengwan , Xu Meng
Published: March 2019

Few-layer graphene nanosheets were produced by pulsed discharge in graphite micro-flake suspension at room temperature. In this study, the discharging current and voltage data were recorded for the analysis of the pulsed discharge processes. The as-prepared samples were recovered and characterized by various techniques, such as TEM, SEM, Raman, XRD, XPS, FT-IR, etc. The presence of few-layer graphene (3–9 L) in micrometer scale was confirmed. In addition, it is investigated that the size of recovered graphene nanosheets are influenced by the initial size of utilized graphite micro-flake powder. Based on the process of pulsed discharge and our experimental results, the formation mechanism of few-layer graphene was discussed. The influence of charging voltage on as-prepared samples is also investigated.