Late biological effects of heavy charged particles: Cataracts, vascular injury and life shortening in mice

Risks associated with extended habitation in a space environment, particularly hazards to space workers that might result from exposure to high energy heavy ion particles (HZE), were studied. Biological effects of HZE were investigated in mice to assess their potential adverse health hazards. The potential effects of HZE particles on the crystalline lens of the eye and the carcinogenic effects and blood vessel (vascular) damage from radiation were evaluated by a risk assessment. Animal experiments to evaluate dose response relationships for tumor induction/promotion and for vascular injury were introduced. Cataract productions and preliminary results on cacinogenic and vascular effects are presented for perspective

Tingkat percaya diri dan keterampilan micro teaching

The purpose of this study was to see the level of student confidence in micro teaching learning for students of Physical Education Health and Recreation, Univeritas Islam Riau. This type of research is a quantitative descriptive study. The population in this study were all students of Physical Education for Health and Recreation Semester VI of the 2019/2020 Academic Year who had completed the micro teaching course which received 211 people. The research sampling technique used total sampling. The research was conducted by applying a questionnaire to students. Based on the results of the research analysis, the findings obtained were 34.59% of self-competence results in the "sufficient" category and 35.07% of micro teaching skills in the "sufficient" category. This proves that Health and Recreation Physical Education students must be able to hone their ability to practice speaking skills so that they can become more competent prospective teachers in their fields

Settlement of Land Pawn Disputes Through Courts in West Sumatra

 The legal act of pawning is a two-party legal act, which involves the pawnbroker and the pawner. Manggadai is a land transaction. But the right to land remains with the land owner. The pawn recipient has the right to work on the pawned land and collect income from the pawned land. The problem is how the causes of land mortgage disputes in West Sumatra, how the process of resolving land mortgage disputes through the court in West Sumatra, and how the legal considerations of judges in deciding land disputes in West Sumatra. The method used in this study is the normative juridical method. The normative juridical method is carried out using a case approach. Based on the problems mentioned above, the results of the study are obtained. First, there are 5 (five) factors that cause land mortgage disputes in West Sumatra, namely not paying ransom for land pawns. One of the parties committed an illegal act, namely in the case of land acquisition without a legal basis. Default to the pawnshop agreement either in terms of not giving something, giving something but not on time, not doing something, doing something that is prohibited. Instead of a pawn without the agreement of the land owner, the pawn is only done by the pawn recipient and the pawn recipient. A bad intention from one of the parties. Second, in the settlement of land mortgage disputes, it should be resolved through mediation through both litigation and non-litigation. Third, the panel of judges in ruling a land pawning dispute must also consider the applicable customary law and the pawn merchant agreement itself. Law Number 56 Prp of 1960 must be changed or replaced, especially Article 7 concerning land pawning. Amendment or replacement of Law Number 56 Prp of 1960 must be by law, not by statutory regulations under the law. So the President or the House of Representatives must take the initiative to submit a bill for amendment or a bill to replace Law Number 56 Prp of 1960. Because Article 7 of Law Number 56 Prp of 1960 is clearly contrary to the Minangkabau Customary norm governing pawning agricultural land. And if no action is taken against the prevailing legal norms, according to the author, more land pawn cases will emerge in court. As well as in the drafting of the aforementioned Bill, it must involve all indigenous peoples throughout Indonesia, especially the Minangkabau indigenous people through representatives of traditional leaders as well as agrarian and customary law experts

Kontribusi Kekuatan Otot Lengan Terhadap Hasil Servis Bawah Bolavoli di SMP Negeri 2 Rambah Samo Kabupaten Rokan Hulu

Penelitian ini berpangkal dari beberapa permasalahan yang ditemukan peneliti di lapangan, yang telah dilakukan di SMP Negeri 2 Rambah Samo Kabupaten Rokan Hulu pada saat melakukan servis bawah, sikap awal berdiri sudah terlihat kesalahan yang menonjol, kaki yang dirapatkan sehingga tidak leluasa untuk bergerak dalam melakukan servis bawah. Sikap badan yang tidak merunduk saat melakukan servis bawah sehingga siswa terlihat kaku. Terkadang bola dilambung terlalu tinggi pada saat melakukan servis bawah, sehingga perkenaan kontak tangan dengan bola kurang tepat. Pandangan ke arah bola tidak diseimbangkan dengan ayunan lengan tangan terhadap bola. sehingga bola tidak dapat diarahkan sesuai dengan yang diharapkan. Pada sikap perkenaan, masih terdapat kesalahan yaitu, siswa belum bisa secara maksimal menyesuaikan ketepatan tangan saat menyentuh bola. Kemudian pada sikap akhir dalam servis bawah, ada siswa tidak kembali pada posisi awal setelah melakukan servis bawah. Tujuan penelitian ini adalah untuk mengetahui kontribusi kekuatan otot lengan terhadap kemampuan servis bawah bolavoli siswa SMP Negeri 2 Rambah Samo Kabupaten Rokan Hulu. Jenis penelitian ini merupakan korelasi. Semua populasi diambil sebagai sampel, teknik ini disebut dengan total sampling. Jadi populasi dan sampel di penelitian ini adalah siswa kelas VIII SMP Negeri 2 Rambah Samo Kabupaten Rokan Hulu sebanyak 40 orang. Pengumpulan data ini dilakukan dengan test push-up dan tes servis bawah bolavoli. Berdasarkan hasil pengolahan data diperoleh rhitungsebesar 84.03 sedangkan rtabel pada taraf signifikan 5% adalah 0.304, dari data tersebut, maka uraian tersebut dapat ditarik asumsinya bahwa rhitung≥ rtabelatau 84.03 ≥ 0.304. Dengan demikian dapat disimpulkan bahwa terdapat kontribusi 7.06% dan terdapat signifikan antara kekuatan otot lengan terhadap hasil servis bawah bolavoli siswa SMP Negeri 2 Rambah Samo Kabupaten Rokan Hulu

ANALISIS MUZARA’AH TERHADAP SISTEM BAGI HASIL PERTANIAN DI PEKON PENGGAWA V ILIR KECAMATAN WAY KRUI KABUPATEN PESISIR BARAT PERSPEKTIF EKONOMI ISLAM

ABSTRAK Salah satu sistem pengelolaan pertanian yang digunakan oleh penduduk di Pekon Penggawa V Ilir adalah sistem bagi hasil (Muzara’ah). Bagi petani yang tidak memiliki tanah pertanian mereka bekerja mengelola tanah petani lainnya yang mempunyai lahan, adapun segala bentuk biaya dalam hal pengelolaan lahan di tanggung oleh pemilik lahan. Selain itu, kebiasaan masyarakat Pekon Penggawa V Ilir dalam melakukan sistem kerjasama bagi hasil perkebunan tidak menetapkan batas waktu, tidak menuliskan akad perjanjian, tidak ada saksi dalam pelaksanaannya. Ketentuan dalam fiqih muamalah bahwa setiap melakukan perjanjian harus menetapkan batas waktunya dan hendaknya dituliskan untuk menghindari perselisihan diantara kedua belah pihak. Namun hal ini tidak terlepas dari pengetahuan dan pemahaman masyarakat Pekon Penggawa V Ilir. Adapun rumusan masalah dalam penelitian ini yaitu,bagaimana pelaksanaan sistem bagi hasil pertanian di Pekon Pengawa V Ilir Kecamatan Way Krui Kabupaten Pesisir Barat menurut sistem Muzara’ah ? Bagaimana pembagian hasil pertanian di Pekon Pengawa V Ilir Kecamatan Way Krui Kabupaten Pesisir Barat menurut pandangan Ekonomi Islam ? Bagaimana penerapan pola bagi hasil pemilik dan penggarap dalam meningkatkan kesejahteraan masyarakat Pekon Penggawa V Ilir ?. Tujuan penelitian ini Untuk mengetahui sistem muzara’ah terhadap pelaksanaan sistem bagi hasil pertanian di Pekon Pengawa V Ilir Kecamatan Way Krui Kabupaten Pesisir Barat.Untuk mengetahui pandangan Ekonomi Islam terhadap pembagian hasil pertanian di Pekon Pengawa V Ilir Kecamatan Way Krui Kabupaten Pesisir Barat,Untuk mengetahui penerapan pola bagi hasil pemilik dan penggarap dalam meningkatkan kesejahteraan masyarakat Pekon Penggawa V Ilir. Jenis penelitian ini mengunakan penelitian lapangan (field research) dan sifat penelitian ini deskriptif kualitatif. Sumber data yang digunaka adalah jenis data primer dan sekunder. Populasi dalam penelitian ini sebanyak 125 orang dan sampel dalam penelitian ini berjumlah 25 orang. Teknik pengumpulan data meliputi, observasi, wawancara, dan dokumentasi. Teknik pengolahan data yaitu editing, coding,dan sistematis data, kemudian data dianalisis dengan reduksi data, penyajian data, penarikan kesimpulan. Pengujian keabsahan data menggunakan teknik triangulasi yang mengutamakan evektifitas proses dan hasil yang diinginkan. Hasil dari penelitian ini menunjukkan bahwa pelaksanaan kerjasama bagi hasil di pekon Pengawa V Ilir Kecamatan Way Krui Kabupaten Pesisir Barat belum sesuai dengan sistem Muzara’ah. Namun meskipun pelaksanaan akad kerjasama bagi hasil pertanian padi di Pekon Penggawa V Ilir belum sesuai dengan konsep dan yang ada dalam fiqih islam, akan tetapi pelaksanaan tersebut merupakan adat atau kebiasaan masyarakat setempat yang dilakukan secara turun temurun sehingga dari adat atau kebiasaan masyarakat tersebut akan terus berkembang dan dapat menjadi sebuah ketentuan hukum yang sifatnya tidak tertulis. Pembagian hasil panen yang dilakukan di pekon penggawa V Ilir tidak bertentangan dengan ekonomi Islam, hal ini dapat ditelusuri dari sistem kerjasama bagi hasil yang berlaku di pekon penggawa V Ilir yaitu, 1) sewa, 2) bagi dua, 3) tolong – menolong, 4) bagi tiga, walaupun sewa tidak termasuk dalam katagori bagi hasil, tetapi beleh dilakukan karena sifatnya hanya pemindahan pengelolaan bukan pemindahan hak memilik. Oleh karena itu kebiasaan semacam ini sah – sah saja untuk tetap dijalankan atau dipertahankan, akan tetapi diperlukan sebuah pengetahuan untuk mengetahui pola bagi hasil pertanian menurut ekonomi islam agar sistem atau pola bagi hasil pertanian padi yang mereka terapkan itu sesuai dengan konsep bagi hasil pertanian dalam ekonomi Islam. Hasil dari kerjasama bagi hasil yang dilakukan oleh masyarakat di Pekon Penggawa V Ilir telah memberikan banyak manfaat bagi kesejahteraan masyarakat antara para pelaku usaha dapat memenuhi kebutuhan hidup seharihari, pendidikan dan juga bisa memenuhi kebutuhan akan tempat tinggal, namun belum sepenuhnya mengarah pada kesejahteraan masyarakat secara menyeluruh. Kata Kunci: muzara’ah, sistem bagi hasil, pertania

Child Character Education Through Health and Sports Physical Education

The purpose of this study was to determine the results of the formation of children's character through play activities in physical education, sports and health. The type used in this research is descriptive quantitative. Data collection was used by distributing research questionnaires. The population and sample in this study were Class VIII SMP Negeri 2 Rambah Samo, Rokan Hulu Regency, which consisted of 60 students. The instrument to be used in this research is a questionnaire. Based on the research data obtained in this study it can be concluded that Character Education Through Physical Education Sports Health is in the "Moderate" category with a percentage of 61.66%

PENGEMBANGAN MODEL BELAJAR GERAK DASAR BERBASIS PERMAINAN TRADISIONAL UNTUK ANAK SEKOLAH DASAR

The purpose of this research development is to produce a basic motion model based on traditional games for elementary school students. The targets in this research development are elementary school students in Siak Hulu District, Kampar Regency, Riau Province. The research method used is research development with the Barg and Gall model. The data collection technique used is the result of expert validation and effectiveness testing through experiments with statistical data analysis paired t-test. The results of research development of basic movement models based on traditional games for elementary school students show that (1) Basic movement models based on traditional games for elementary school students effective enough elementary school students' basic skills movement. (2) The results of the validation test by movement development experts showed that 35 item models were feasible to be applied in learning basic movements for elementary school students, and basic movement models traditional game-based were effective for improving elementary school students' basic movements. Tujuan penelitian dan pengembangan ini adalah menghasilkan pengembangan model belajar gerak dasar berbasis permainan tradisional untuk anak sekolah dasar. Sasaran dalam penelitian pengembangan ini adalah anak sekolah dasar di Kecamatan Siak Hulu Kabupaten Kampar Provinsi Riau. Metode penelitian yang digunakan adalah penelitian pengembangan dengan model Barg and Gall. Teknik pengumpulan data yang digunakan adalah hasil validasi pakar dan uji efektivitas melalui eksperimen dengan analisis data statistik paired t-test. Hasil penelitian pengembangan model belajar gerak dasar berbasis permainan tradisional untuk anak sekolah dasar menunjukkan bahwa (1) Pengembangan model belajar gerak dasar berbasis permainan tradisional untuk anak sekolah dasar cukup efektif meningkatkan kemampuan gerak dasar anak sekolah dasar. (2) hasil uji validasi oleh ahli perkembangan gerak menunjukan bahwa 35 item model layak untuk diterapkan dalam belajar gerak dasar untuk anak sekolah dasar dan pengembangan model belajar gerak dasar berbasis permainan tradisional efektif untuk meningkatkan gerak dasar anak sekolah dasar. Kata kunci: Model Belajar, Gerak Dasar, Permainan Tradisiona

Pengaruh Kepuasan Kerja Dan Organizational Citizenship Behavior Terhadap Stres Kerja Dan Retensi Karyawan Di PT Multi Auto Intrawahana Pekanbaru

The research was conducted at PT. Multi Auto Intrawahana Pekanbaru. The purpose of this study was to determine the effect of job satisfaction and Organizational Citizenship Behavior (OCB) against work stress and its impact on the retention of employees at PT. Multi Auto Intrawahana Pekanbaru. Total population in this study were 53 employees and a sample is taken from the entire population of 53 employees. The determination of the sample using census method or technique of total sampling is a sampling technique that is done by taking the entire population. The results of the study of job satisfaction significant positive effect on employee retention, Organizational Citizenship Behavior (OCB) has no effect on employee retention, job stress significant negative effect on employee retention, job satisfaction significant negative effect on job stress of employees and Organizational Citizenship Behavior (OCB) negative effect significantly to the stress of employees of PT Multi Auto Intrawahana Pekanbaru. Advice can be given that the leaders should provide equitable opportunities for all employees in career development, to employees in order to always maintain good communication and continue to think positively with each other and the company should be able to pass training on cooperation and responsibility to cultivate an attitude and awareness of responsibility and cooperation on the employee

Blockchain Regulations and Decentralized Applications: Panel Report from AMCIS 2018

Blockchain represents one of the 21st century’s most impactful inventions. In addition to creating cryptocurrencies such as Bitcoin, this technology enables smart contract functionality and supports decentralized, secure, and private transactions. By design, blockchains enable decentralized functionality for many of today’s business applications and transform traditional centralized information systems. In this paper, we summarize four research areas that will appeal to IS scholars that a panel at AMCIS 2018 discussed: 1) cryptocurrency regulation, 2) Etherisc (a smart contract-based application), 3) decentralized blockchain applications in healthcare, and 4) Bitcoin as a blockchain application and issues with decentralization. To account for the European Union’s General Data Protection Regulation’s requirements to provide people with the right to be forgotten and modify personal data, we modified Pedersen et al.’s (2019) framework to accommodate off-chain data storage requirements. We deployed Pedersen et al.’s (2019) modified framework to evaluate whether one can use blockchains for three different applications. We summarize several research questions and present a research agenda that emerged from the issues highlighted during the panel discussion

Learning Model And Motor Ability Towards Football Playing Skills In Sports High School Students

This study aims to determine: (1) the difference in the influence between the tactical learning model and the direct learning model on football playing skills in Riau provincial sports SMAN students, (2) the interaction between the learning model and motor ability on football playing skills in Riau provincial sports sman students (3) Differences in the influence of direct learning models on football playing skills on high ability motorcycles, (4) Differences in the influence of direct learning models on football playing skills on low motor ability. This type of research is an experiment using a factorial design of 2 x 2. The population in this study was 76 students who were active in the sport of football. The sample in this study was 20 people using a purposive random sampling technique followed by ordinal pairing to divide the group. The instruments in this study were football skills tests, (1) passing and stopping, (2) dribbling, (3) shooting, (4) heading, barrowmotor ability tests, (1) standing broad jump, (2) softball throws, (3) wall passes, (4) medicine ball puts, (5) 60 yards running using ANAVA two Away data analysis techniques. The results showed that: (1) there was a significant difference in influence between the tactical learning model and the direct learning model on improving football playing skills, (2) There was an interaction between the learning model and motor ability on football playing skills in students of sports high schools, (3) Tactical learning models and direct learning models in the group of high ability motor students on playing skills Football has the same result. (4) The tactical learning model provides more significant results than the direct learning model of football playing skills in students with low motor ability