bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGARUH MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP PEMAHAMAN KONSEP MATEMATIKA
Authors: Surur Miftahus , Oktavia Sofi Tri 
Published: February 2019

Abstract: This study aims to determine the difference in understanding of students' concepts in mathematics subjects using discovery learning models and direct teaching models in class X of Khamas Asembagus Vocational School 2017/2018 academic year. This research is a type of quasi experiment research (quasi experiment). The population in this study was class X of the Khamas Asembagus Vocational School which consisted of 3 classes with 80 students. The sample in this study is class X TKJ 1 as many as 24 students as the experimental class and class X MM as many as 31 students as the control class. Data collection in this study was conducted using a test and then analyzed by t-test. The results of the analysis show that tcount> ttable or 3.198> 1.6741, it can be concluded that there is a significant difference in the level of understanding of students' concepts in mathematics between those using the discovery learning model and the direct teaching model. Keywords: Discovery Learning, Learning Outcomes, mathematical concepts Abstrak: Penelitian ini bertujuan untuk mengetahui perbedaan tingat pemahaman konsep siswa pada mata pelajaran matematika yang menggunakan model discovery learning dan model pengajaran langsung pada siswa kelas X SMK Khamas Asembagus tahun pelajaran 2017/2018. Penelitian ini merupakan jenis penelitian quasi experiment (kuasi eksperimen). Populasi dalam penelitian ini yaitu kelas X SMK Khamas Asembagus yang terdiri dari 3 kelas dengan jumlah 80 siswa. Sampel dalam penelitian ini yaitu kelas X TKJ 1 sebanyak 24 siswa sebagai kelas eksperimen dan kelas X MM sebanyak 31 siswa sebagai kelas kontrol. Pengumpulan data dalam penelitian ini dilakukan dengan menggunakan test dan selanjutnya dianalisis dengan uji t-test. Hasil analisis menunjukkan bahwa thitung > ttabel atau 3,198 > 1,6741, dapat disimpulkan bahwa terdapat perbedaan yang signifikan tingkat pemahaman konsep siswa pada mata pelajaran matematika antara yang menggunakan model pembelajaran discovery learning dan model pengajaran langsung. Kata kunci: discovery learning, hasil belajar, konsep matematika
Reassembling Musicality
Authors: Barrett G Douglas 
Published: February 2019

Reassembly, curated by G Douglas Barrett and Petros Touloudi
Tinos, Greece
5 July 2017 to 31 October 2017
The free movement of bodies and objects once considered critical for the
smooth functioning of contemporary art has appeared, especially since 2017,
increasingly uncertain in this era marked by new forms of nationalism, xenophobia,
and economic isolationism. Indeed, many artists working in this
environment have found it difficult or impossible to cross once unquestionably
open borders, or to ship works to and from exhibitions held across a requisitely
international stage. As an attempt to respond to this crisis, I, along
with Petros Touloudis, curated Reassembly, an exhibition held in the summer
of 2017 on the island of Tinos, Greece. The exhibition came out of an annual
residency program organized by Touloudis’s Tinos Quarry Platform and was
held at the Cultural Foundation of Tinos. Overall, we wanted to ask if there is
a critical role for music can play in the field contemporary art, especially as its
plagued by new forms of border policing and geopolitical conflict.
Great Start and the Albanian College of Surgeons.
Authors: Latifi Rifat 
Published: February 2019

The organizing and publishing a journal takes enormous efforts from scientific community, takes trust by all of us, and hard work. In a view of new industry of open access journals, this becomes even harder. Surgical journals, most frequently are publishers and are supported by membership organization such as ASTES. The importance of this conference, that has been changed now to The Congress of Trauma and Emergency Surgery, above all is not only the scientific merits, but the fact that has initiated a multidisciplinary meeting of all clinical and pre-hospital services services and providers who care for trauma and injured patients and those who are are in need for an emergency surgery. In ad-dition, the AJTES , as it continue to build an co-alition of partners, will elevate not only scientific consciousness, but will spearhead the building of the organization of the scientific and political mi-lieu and become an important voice and adviser the government in leading and influencing the training, education and wellbeing of new gen-eration of surgeons, anesthesiologist, intensivist, emergency medicine providers, and overall sub-stantially effect strategic developments of health-care system.
Gender Related Differences in Reported Respiratory Symptoms.
Authors: Habazaj Altin , Tafa Holta , Bardhi Donika , Hafizi Hasan 
Published: February 2019

Background: Physiological research on dyspnea has provided some information on how sex differences in lung and airway size can influence the experience of dyspnea during exercise; however, there is still a knowledge gap with regard to sex-related differences in other respiratory symptoms, including cough and sputum production.
Objective: The objective of this analysis was to assess sex related differences in reported objective symptoms using data from the population-based Burden of Obstructive Lung Disease (BOLD) study in Albania.
Method: Males and females with impaired lung function may experience the same symptoms but per-ceive and/or report them differently. In this analysis were included 997 responders who had completed the core questionnaire, which included data on respiratory symptoms using the following questions: “Do you usually cough when you don’t have a cold?” and “Do you usually bring up phlegm from your chest, or do you usually have phlegm in your chest that is difficult to bring up when you don’t have a cold. Chronic was defined as three months or more per year. Data used were drawn from the final report for Albania provided by BOLD team.
Results: Overall, male gender was associated with increased odds for reported chronic cough at any group age [Total: 14.7 (2.3) vs. 6.6 (0.9)]. This difference is very much reduced in the group age 70+ years old [25.8 (8.2) vs. 21.3 (6.8)]. In the contrary when we used the estimated population preva-lence of chronic cough by pack-years and gender, female gender was associated with increased odds for reported chronic cough especially in the 10+ pack-years groups [50.4 (11.0) vs. 12.2 (8.3) in 10-20 pack-years and 29.0 (5.5) vs. 26.0 (3.3) 20+ pack-years] indicating a increased smoking susceptibility of female gender. In contrast, female gender was associated with decreased odds for reported phlegm. Even for the same pack-years of smoking, female gender is associated with decreased odds for report-ed chronic phlegm [0 vs. 7.1 (8.6) in 10-20 pack-years group; 0 vs. 15.4 (3.0) in 20+ pack-years group].
Conclusions: Physicians need to recognize that although a female may not report chronic sputum or phlegm production and a male may not report chronic cough, a diagnosis of Chronic Obstructive Pulmonary Disease should still be considered as symptoms often are the first step to a diagnosis of under-lying airway disease.
Synthesis of silver nano-particles using micro-emulsion technique
Authors: Nguyen Hoa Phuoc Trung , Pham Tuyen Thuy Bich , Lam Vinh Quang , Le Hieu Van 
Published: February 2019

Silver nanoparticles were synthesized by mixing two micro-emulsion systems – one with precursor (AgNO3) and one with reducing agent (NaBH4). Dioctyl sodium sulfonsuccinate – AOT was used as surfactant. We studied parameters as ω – molar ratio of water to surfactant, hydrocarbon (oil) types. The molar ratio of water to surfactant was changed from 2.5 to 5; 7.5 and 10. The used oil types were cyclohexane, iso-octane, and dodecane. XRD, UV-Vis and TEM images were used to elucidate the structure and size of the products. The results showed that, synthesized silver nanoparticles sizes were between 5 – 7 nm, with homogeneously spherical shapes. The silver colloids were used in antibacterial applications. The antibacterial efficiency was very high, above 99% at ~ 4 μg/ml concentration of silver nanoparticles.
TA'WIL AL-QURAN DAN USUL FIQH DALAM PERSPEKTIF ULAMA TAFSIR
Authors: Anwar H. Saeful 
Published: February 2019

Al-Qur’an diturunkan untuk difahami, diamalkan dan didakwahkan. Sebagian ayatnya cukup terang, tetapi sebagian lagi masih memerlukan penjelasan, baik dengan tafsir,yakni penjelasan makna lapaz dari nash al-Quran, hadist atau ra’yu sesuai arti lahir (yang rajih), maupun dengan ta'wil, yakni memalingkan lafaz kepada makna katanya (marjuh) karena alasan tertentu. Dari sudut bentuknya, ta'wil identik dengan tafsir kecuali dalam beberapa hal, sedang pembahasan paling mendasar antara keduanya adalah bahwa tapsir pada dasarnya kembali kepada riwayat dan makna pertama, sedang ta'wil kembali kepada dirayah dan makna kedua.Sikap ulama terhadap ta'wil secara umum terlihat dari pandangan mereka tentang otoritas dan kaidah-kaidah tafsir secama umum, tafsir bi al-ra’yi kajian khusus tentang kaidah-kaidah kehahasaan dan kajian khusus tentang ta'wil ayat-ayat mutasyabihat. Para ulama yang mempunyai akidah yang sahih, ilmu yang dalam, akhlak yang mulia dan mengamalkan ilmunya, pada umumnya mengakui dan memberlakukan ta'wil pada tempat yang semestinya sesuai prinsip-prinsip dan ruh al-Quran dan al-Sunnah serta kaidah-kaidah kebahasaan, tidak menolak sama sekali dan tidak membahasnya tanpa batas. Tetapi ulama salaf pada umumnya lebih sedikit memakai ta'wil ketimbang ulama khalaf Ada dua bahaya besar yang dapat mengaburkan ajaran al-Qur’an dan al-Sunnah, yaitu riwayat maudlui dan doif serta sehagian israiliyat yang berkaitan dengan tafsir bi al-ma'tsur dan ta’wil fasid yang berkaitan dengan tafsir bi al-ra’yi. Baik pada zaman dahulu maupun pada zaman kontemporer, ta'wil fasid banyak bermunculan karena berbagai faktor.Kata Kunci: Ta’wil, Tafsir, Ushul Fiqh, Ulama Tafsir
SISTEM PEMBELAJARAN DI PERGURUAN TINGGI
Authors: Hidayat Sholeh 
Published: February 2019

Pembelajaran merupakan kegiatan inti dari keseluruhan proses pendidikan di Perguruan Tinggi. Salah satu indikator mutu pendidikan di Perguruan Tinggi dapat dilihat dari hasil belajar mahasiswa dan kualitas hasil belajar akan dipengaruhi oleh kualitas proses pembelajarannya. Dosen merupakan faktor determinan dalatn menentukan tinggi rendahnya kualitas proses pembelajaran. Kualitas proses_pembelajaran dapat dilihat dari bagaimana dosen dalam menggunakan sistem penyajian bahan, peranan dosen dalam mengelola kegia n pembelajaran, .tingkat partisipasi dan jenis kegiatan belajar yang dihayati mahasiswa se iklim proses pembelajaran.Ada dua pola pembelajaran di Perguruan Tinggi yaitu pola pembelajaran yang berpusat pada lembaga atau dosen, yaitu seorang dosen mengajar mahasiswa dengan bahan ajar yang sudah given sebagaimana yang telah dituangkan dalam Silabus dan Pola Pembelajaran yang di desain dengan pendekatan sistem yaitu dosen mengajar dan mahasiswa. belajar, bertolak dari kebutuhan belajar mahasiswa yang diawali dengan needs assesment. Strategi pembelajaran di Perguruan Tinggi keaktifan berpusat pada mahasiswa dan kemandirian.Kata Kunci: Sistem Pembelajaran, Perguruan Tinggi, Pola Pembelajaran
VISI PENDIDIKAN ISLAM DALAM SISTEM PENDIDIKAN NASIONAL
Authors: Fathurrahman Pupuh 
Published: February 2019

Salah satu persoalan pendidikan di Indonesia adalah ketidakjelasan visi pendidikan. Apalagi yang berkenaan dengan visi pendidikan Islam. Ketidakjelasan ini pada akhirnya mengakibatkan sistem pendidikan di Indonesia tidak tertata secara baik, sehingga upaya mencerdaskan kehidupan bangsa menjadi stagnan, jalan di tempat. Sehingga mutu pendidikan di Indonesia tertinggal dari negara-negarayang pada mulanya berada beberapa tingkat di bawah Indonesia.Dalam upaya memberikan visi pendidikan alternatif, tulisan ini berusaha mendiskripsik an tentang visi pendidikan yang ideal yang sebaiknya ditempuh oleh para pengambil kebijakan, mengingat mayoritas penduduk nigari ini beragama Islam.Kesempatan untuk memasukkan visi pendidikan Islam dalam sistem pendidikan Islam itu terbuka, ketika gelombang era reformasi di buka pada masa pemerintahan B.J. Habibie. Arus reformasi yang membuka wacana baru tentang visi pendidikan, yang memberikan jawaban terhadap persoalan dewasa ini yang penuh dengan tantangan. Sehingga sistem pendidikan di Indonesia bisa keluar dari jalan buntu dan dapat tertata secara baik, sesuai dengan amanat dan aspirasi masyarakat Indonesia.
Kata Kunci: Pendidikan Islam, Sistem Pendidikan Nasional
LITERATUR FIKIH
Authors: Mubarok Jaih 
Published: February 2019

Sejarah pelestarian dan perkembangan pengetahuan dan keilmuan manusia dilakukan dengan dua cara yaitu dihafal dan ditulis. Hafalan melahirkan tradisi lisan seperti pada cerita rakyat, sedangkan tulisan melahirkan pula tradisi cetak dan penerbitan.
Proses penulisan dan pelestarian sebuah karya sangat penting disebabkan dua hal, yaitu: pertama, banyaknya orang yang masih berpegang pada tradisi lisan; dan kedua, tradisi tulis dapat dilahirkan tanpa hubungan secara fisik antara guru dan muridnya.
Kata Kunci: fiqih, hukum Islam, sejarah, literatur
Implementasi Alat Prediksi Curah Hujan Menggunakan Metode Embedded System di Kelurahan Wonokoyo Kecamatan Kedungkandang Kota Malang
Authors: Wahyuni Ida , Adipraja Philip Faster Eka , Dewi Sri Anggraini Kusuma 
Published: February 2019

Kelurahan Wonokoyo adalah salah satu kelurahan di Kota Malang yang kaya akan potensi pertanian. Banyak komoditi pertanian tebu dan palawija yang dihasilkan kelurahan Wonokoyo khususnya di RW 5 yang dihimpun oleh Kelompok Tani Ainul Hayat. Namun karena kondisi iklim yang tidak menentu membuat curah hujan menjadi sulit diprediksi. Padalah jumlah curah hujan sangat menentukan awal masa tanam dan masa pemupukan. Selama ini para petani hanya mengandalkan pengalaman dalam menentukan awal masa tanam dan masa pemupukan, namun karena curah hujan tidak menentu sering terjadi kesalahan dalam memperkirakan curah hujan. Kesalahan dalam memprediksi curah hujan mengakibatkan hasil panen dan kulitas pemupukan menjadi tidak optimal. Alat prediksi curah hujan sangat dibutuhkan untuk memperkirakan rata-rata curah hujan yang akan turun selama sepuluh hari kedepan. Dengan mengetahui perkiraan curah hujan, petani akan mempunyai pedoman dalam menentukan apakah sepuluh hari kedepan baik digunakan untuk awal masa tanam atau masa pemupukan. Alat prediksi curah hujan dibuat dengan sensor pencatat data cuaca dan software embedded system untuk memprediksi curah hujan. Metode yang akan digunakan yaitu hybrid FIS-GA yang pernah digunakan sebagai metode prediksi curah hujan. Hasil luaran yang ditampilkan oleh alat prediksi curah hujan adalah rata-rata curah hujan yang akan terjadi sepuluh hari kedepan.
Analysis of Conditions and Mechanisms for Generation of Explosive Mixtures at an Early Stage of Chornobyl Accident
Authors: Azarov S. , Sydorenko V. , Ievlanov V. , Havryliuk M. 
Published: February 2019

The paper presents the scenario developed for an early stage of the accident progression to assess impact of highly explosive hydrogen on RBMK-1000 design. It was found out that the ratio between the speed of local generation of gaseous hydrogen and the speed of hydrogen spreading in the vapor-gas medium of the core is the determining factor for the occurrence of conditions of explosive vapor-air mixture in the core.
Obtained data can be used in further studies to model the formation of explosive mixtures in the environment, the amount of air and water vapor in the analysis of explosive vapor-air mixture. Practical calculations make it possible to assess fracture energy and predict the impact on structures.
Vulnerability Analysis of Pipelines and Equipment of the Existing NPP Power Units with VVER-1000 under Vibrations Caused by the Aircraft Crash
Authors: Shamis L. , Matchenko T. , Veriuzhska T. 
Published: February 2019

Low-frequency dynamic loads from earthquakes were taken into account in the design of the equipment and pipelines of the existing nuclear power plants. Therefore, in the case of an aircraft crash impact on a nuclear reactor containment, exciting intense high-frequency vibrations of the building, the reliability of the nuclear power plant cannot be guaranteed without the failure risk assessment of objects that are involved in the safe shutdown.
The paper suggests a method of the failure risk assessment using the concept of the ultimate resistance of pipelines and equipment of nuclear power plants to vibrations typical for the “aircraft crash” emergency design situation. The ultimate resistance is defined by the value of the load impulse, the application of which results in the probability of failure of the considered pipeline or equipment of 0.01 taking into account that it performs functions to provide 0.50 safety.
Perspective technology of recycling of radioactive contaminated metal based on its melting
Authors: Balakin V. , Mashinistov V. , Koveria A. 
Published: February 2019

Melting of the radioactively contaminated metal converts it as a source of ionizing radiation from a surface distribution of radionuclides into the source with their volume distribution. From the surface of the melted metal gamma radiation of a part of radionuclides is emitted, which are in its scope. Alpha and beta radiation are absorbed completely in the metal.
To obtain a radiation-safe metal it is necessary that the amount of gamma-emitting radionuclides, which are loaded into the furnace together with the charge, did not exceed the established allowable level.
The radiation safety criterion of the melted metal is the maximum value of the gamma radiation power from its surface, the established limit of the individual annual effective radiation dose is not exceeded.
There is a need for experimental verification of theoretical results was obtained. The use of this technology will allow the return to industrial production of large amounts of accumulated radioactively contaminated metal and creates conditions for the prevention of environmental violations.
Experimental Research of Valve Tightness at Different Closure Forces
Authors: Koroliov A. V. , Pavlyshyn P. Y. , Bandurko I. V. 
Published: February 2019

Power valves are installed on almost all the pipelines of nuclear power plants performing the functions of regulation and shutting off the flow, so its failure often leads to emergencies. A particularly large number of failures is observed in motor-operated valves. Incorrect setting of the limiting clutch leads either to incomplete closure of the valve or to rod failure. Therefore, the valves are equipment of a nuclear power plant, which often falls into repair shops. Failures leading to an increase of valve leakage are especially dangerous for nuclear power plants. In this case, leakage of high-pressure valves leads to erosion of the sealing surfaces, which only increases the leakage. Thus, it is very important to determine the optimum rotational value when the valve is closed. The lack of conditions for closure force in the standards for valve leakage complicates the issue.
A bench that allows working in the air with a pressure up to 3.5 MPa was developed on valve rod to study dependence of valve leakage on the rotational moment. Four independent parameters were measured: air pressure in front of the valve under study, closure force of the valve, volume of air loss through the valve and leakage time. A standard stop valve with a nominal diameter of 15 mm and a nominal pressure of 64 atm was used for the study.
The determined dependence of the leakage on torque value allows recommending a gentler mode of valve closure without significantly reducing its tightness. As a result of experimental data processing, a criterial equation is obtained linking a leakage rate, pressure drop on the valve and a rotational moment value. The received criterial equation will allow defining the compromise between valve closure force and permissible leak level according to regulatory requirements. The analysis of the “leakage/rotational moment” diagram showed the possibility to reveal the damaged valves. This possibility may be used during the incoming inspection of the valves supplied to NPP, which should significantly improve the reliability of their operation.
The Issue Of Linear No-Threshold Hypothesis
Authors: Nosovskyi A. V. 
Published: February 2019

Some issues concerning the effect of ionizing radiation on the human body and methodological approaches to the development of radiation safety standards are considered. It is shown that the use of the linear no-threshold hypothesis (LNT hypothesis) in up-to-date radiation safety standards is inconsistent with experimental and epidemiological dose-response data, introduces essential excessive conservatism in the safety assessment process and causes additional problems concerning nuclear power engineering development.
Due to the absence of convincing proofs for the existence of the dose threshold* nowadays, it is assumed that any ionizing radiation can lead to a certain risk of developing harmful effects and, therefore, the linear non-threshold dependence between the dose and the probability of the harmful effect is recommended. However, everyone understands that the use of the LNT hypothesis significantly overestimates the real danger. At the same time, the LNT hypothesis aggravates the existing high public fear of nuclear power, and the nuclear power industry pays extraordinary expenses to comply with radiation protection standards based on the LNT hypothesis. In order to comply with rules and regulations based on the LNT hypothesis, the nuclear energy industry invests financial resources in the creation of additional safety barriers for nuclear facilities, as well as new security and control systems. One of the reasons for increasing the cost for construction of a nuclear power plant is the increased design cost caused by enhanced safety requirements that are based on the LNT hypothesis.
The traditional engineering approach to ensure the safety of nuclear facilities is based on the increase in the number of protective systems and devices that reduce the probability of severe accidents and reduce the radiation hazard of their consequences. Implementation of this approach in practice leads to a complication and a rise in the price of a nuclear facility. Obviously, it is possible to substantially enhance the safety level of nuclear facilities by creating new and new safety barriers around them, but sooner or later the nuclear energy production will become uncompetitive compared to the generation of other kinds of energy.
It is concluded that up-to-date knowledge gives all the necessary grounds for eliminating the use of the linear no-threshold hypothesis and for revising the existing radiation safety standards of Ukraine for some isolated technological operations related to radiation hazardous activities. Such technological operations include activities related to the mitigation of radiation accident consequences, retrieval of nuclear materials and other activities related to the Shelter’s transformation into an environmentally safe system.