bluuebunny/crossref_metadata_2025 huggingface dataset:
Online X-Ray Fluorescence Monitoring of Coarse Ore for Silver at the Process Conveyors at Kazakhmys Corporation LLC
Authors: NIGMATULIN Aydar , ABDRAKHMANOVA Zaure , KAN Andrey , EFIMENKO Sergey , MAKAROV Dmitry
Published: January 2021

This paper examines the process and methodological aspects of implementing online X-ray fluorescence monitoring of ore in terms ofits silver, cadmium, zinc, lead, molybdenum, and iron grade at the process conveyors at Balkhash and Karagaily Concentrators andthe main conveyor of the Nurkazgan underground mine operated by Kazakhmys Corporation LLC. The research was complicated bythe need to: a) ensure reliable measurement of silver and cadmium in the range of 1+ ppm, molybdenum in the range of 10+ ppm, aswell as copper, zinc, lead, and iron in the ore size class –300 mm; b) implement monitoring of the grade of these elements (except molybdenum) at Balkhash Concentrator in the waste slag of Balkhash Copper Smelter, characterized by a very complex elemental matrix.A modification of the ore monitoring station RLP-21T (by Aspap Geo LLC, Alma-Ata) was developed, implemented, and thoroughlytested for online monitoring of low-grade silver ore flows. Energy dispersive X-ray fluorescence method was adopted for ore assays.Instrument spectra were measured every second. Silver, cadmium, and molybdenum grade was calculated based on 40 measurements,copper, zinc, lead, and iron grade – based on 20 measurements.
Badanie wpływu odczynników powierzchniowych na poprawę właściwości osadu pod kątem głębinowego górnictwa pierwiastków rzadkich
Authors: SASAOKA Takashi , HAMANAKA Akihiro , FUNATSU Takahiro , SHIMADA Hideki , TAKAHASHI Keisuke
Published: January 2021

Złoża metali rzadkich są bardzo ważne a ich istotność wzrasta w ostatnich latach. Zatem, dno morskie, które zawiera duże ilości tegotypu pierwiastków posiada potencjał do zaspokojenia potrzeb w tym zakresie. Jako jedną z efektywnych metod górniczych w tymaspekcie należy traktować ssanie. Osad denny z dna morskiego, który zawiera pierwiastki ziem rzadkich wykazuje bardzo dużą zawartość wody. Ruch osadu podczas ssania jest uzależniony w dużym stopniu od zawartości wody (WC) oraz krytycznego limitu cieczy(WL) materiału. Zatem, ważnym jest aby zmodyfikować limit cieczy poprzez dodatek odczynnika chemicznego w celu kontrolowaniazachowania się osadu. Wybrano osiem różnych odczynników powierzchniowych, które mogą być podzielona na trzy typy. Są to odczynniki typu dyspergującego, typu retencji wody oraz typu zagęszczającego. Przeprowadzono test limitu cieczy i pomiaru lepkościosadu wymieszanego z odczynnikami. Stwierdzono, że polimer absorbujący wodę oraz hydroksyetyloceluloza zwiększają limit cieczyoraz lepkość. Z kolei, sól amoniowo-alkilowa oraz blenda alkiloarylosulfonianowa zmniejszają te wielkości. Możliwa jest kontrolazachowania się osadu poprzez dodatek odpowiednich odczynników powierzchniowych.
Pengaruh Covid-19 terhadap Pergerakan Indeks Harga Saham Gabungan (IHSG)
Authors: Nour Halisa Novia , Annisa Selvi
Published: January 2021

Kasus covid-19 muncul pertama kali di Wuhan Cina pada akhir tahun 2019 dan menyebar ke seluruh dunia termasuk Indonesia. Wabah ini menyebabkan kekhawatiran baik di kalangan masyarakat, pemerintah, maupun dunia usaha. Respon masyarakat dan pemerintah dalam melakukan upaya-upaya pencegahan yaitu social distancing dan pemberlakuan Pembatasan Sosial Berskala Besar (PSBB) di berbagai daerah di Indonesia menimbulkan roda perputaran ekonomi melambat. Penyebaran wabah covid-19 yang sangat cepat di Indonesia memberikan pengaruh yang besar pada sektor ekonomi khususnya pasar keuangan di Indonesia. Ketidakpastian pasar keuangan yang tinggi tercermin dari volatilitas Indeks Harga Saham Gabungan (IHSG). Penelitian ini bertujuan menganalisis pengaruh covid-19 terhadap pergerakan Indeks Harga Saham Gabungan (IHSG). Pengumpulan data sekunder penelitian diperoleh dari data harian perkembangan jumlah kasus covid-19 dan IHSG periode Maret – Mei 2020. Metode analisis data yang digunakan adalah analisis regresi linier sederhana dan uji hipotesis menggunakan Uji F. Hasil penelitian menunjukkan bahwa jumlah kasus covid-19 di Indonesia pada hari sebelumnya berpengaruh secara signifikan terhadap fluktuasi IHSG hari ini.

Kata Kunci: covid-19, IHSG, saham
Traffict Density Affects Stomatal Character of Tanjung Plant (Mimusops elengi, L.) in Mataram City
Authors: Purnama Sari Baiq Wiwik , Sedijani Prapti , Mertha I Gde
Published: January 2021

Increase in traffic density increases air pollution. Air pollution affects plant life physiologically, for the long run it could be morfologically, one of whichs is the stomatal characters. This research aimed to determine the influence of traffic density difference to the stomatal characteristic of Tanjung leaves (Mimusops elengi L.) in Mataram City. Sampling was carried out on 4 designated locations including the Unram Library (control) that has no traffic density, Jl. Dr. Sudjono (Low traffic), Jl. Ahmad Yani and Jl. Majapahit (high traffic). The method used was Post ex Facto, Purposive sampling. The measured parameters included the number of stomata, the number of open and closed stomata, the stomatal index, the stomatal size and the aperture size of the stomata. The research data was analyzed in a qualitative description and in a quantitative description using analysis of Varian (ANOVA). The results showed that the traffic density reduces the number of stamata as well as their size, the number of opended and increased the number of closed stomata, increases stomatal index due to stomatal damage and reduces stomatal aperture in Mataram city. It is concluded that traffic density affects stomatal haracter tanjung plant. Thrence, this finding reveals that stomatal character of tnajnjung plant can be used as air pollution bioindicator.
Ferns Vegetation in the Lemor Botanical Garden, Suela District, East Lombok Regency
Authors: Febiana Tarita Sita , Raksun Ahmad , Mertha I Gde
Published: January 2021

Lemor Botanical Garden is located in Suela Village, East Lombok Regency, West Nusa Tenggara. Various plant exist in the Lemor Botanical Garden. One of them is ferns. Research on the identification of ferns in the Lemor Botanical Garden was carried out from July to September 2020. The purpose of this research was to determine the spesies of ferns in the Lemor Botanical Garden area. This research is a descriptive research. The data was collected by using the sruise method. The results showed that in The Lemor Botanical Garden there were 12 families and 29 spesies of ferns. The spesies of ferns found were: Tectaria angulata, Tectaria melanocaula, Tectaria palmate, Tectaria SP, Pteridrys syrmatica, Nephrolepis cordifolia, Nephrolepis falcate, Stenochlaena palustris, Drynaria quercifolia, Lemmaphyllum carnosum, Adiantum tenerum, Pteris vittata, Pteris ensiformis, Pteris biaurita, Pteris asperula, Cheilanthes tenuifolia, Antrophyum sessilifolium, Elaphoglossum norsii, Diplazium esculentum, Pityrogramma calomelanos, Macrothelypteris torresiana, Spaerostephanos polycarpus, Mesophlebion sp., Pneumatopteris truncate, Amphineuron immersum, Pneumatopteris sp., Microlepia speluncae, dan Asplenium subnormale.
The Risk Factors of Motorcycle Riders Traffic Accidents in Semarang City 2017
Authors: Ibrahim Mochammad Malik , Adi Mateus Sakundarno , Suhartono Suhartono
Published: January 2021

The incidence rate of motorcycle accidents in Semarang city increased every year in the period 2014–2016. The research related to the risk factor of traffic accident incidents on motorcycle riders in Semarang city is still scarce. This study aims to analyze the risk factors of traffic accidents on motorcycle riders in Semarang city. The type of research is an analytic observational study with a case-control design. The number of samples was 50 cases and 50 controls. The case is a motorcycle rider who had a traffic accident in Semarang city from July to November 2017. Control is a motorcycle rider who did not have a traffic accident. Data was analyzed bivariate and multivariate using logistic regression test backward LR method. Factors proven to be a risk factor for traffic accidents on motorcyclists are less alert (p=0.005, OR=4.255, and 95% CI=1.540–11.759), non-distance habits (p=0.001, OR=5.209, and 95% CI=1.997–13.584), and hasty behavior (p=0.029, OR=2.950, and 95% CI=1.116–7.800). Conclusions, alertness, not keeping distance, and impulsive behavior are risk factors for traffic accident incidents on Semarang city motorcyclists. FAKTOR RISIKO KECELAKAAN LALU LINTAS PENGENDARA SEPEDA MOTOR DI KOTA SEMARANG TAHUN 2017Angka insidensi kecelakaan sepeda motor di Kota Semarang meningkat setiap tahun dalam kurun waktu 2014–2016. Penelitian terkait faktor risiko kejadian kecelakaan lalu lintas pada pengendara sepeda motor di Kota Semarang masih sangat jarang dilakukan. Penelitian ini bertujuan menganalisis faktor risiko kejadian kecelakaan lalu lintas pada pengendara sepeda motor di Kota Semarang. Jenis penelitian adalah studi observasional analitik dengan desain case control. Jumlah sampel 50 kasus dan 50 kontrol. Kasus adalah pengendara sepeda motor yang mengalami kecelakaan lalu lintas di Kota Semarang terhitung dari Juli hingga November 2017. Kontrol adalah pengendara sepeda motor yang tidak mengalami kecelakaan lalu lintas. Data dianalisis secara bivariat dan multivariat menggunakan uji logistic regression metode backward LR. Faktor yang terbukti sebagai faktor risiko kejadian kecelakaan lalu lintas pada pengendara sepeda motor adalah kurang waspada (p=0,005, OR=4,255, dan IK 95%=1,540–11,759), kebiasaan tidak menjaga jarak (p=0,001, OR=5,209, dan IK 95% =1,997–13,584), dan perilaku terburu-buru (p=0,029, OR=2,950, dan IK 95%=1,116–7,800). Simpulan, kurang waspada, kebiasaan tidak menjaga jarak, dan perilaku terburu-buru merupakan faktor risiko kejadian kecelakaan lalu lintas pada pengendara sepeda motor di Kota Semarang.
PENERAPAN MCA PADA PERBANDINGAN LAMA BELAJAR MAHASISWA TINGKAT III POLITEKNIK STATISTIKA Journal of Theoretical Statistics and Its Applications STIS SEBELUM DAN SAAT PANDEMI COVID-19
Authors: Pratama Firza Refo Adi , Fitrial Nadhifan Humam , Lestari Novia Putri , Andhasah Siti , Yuhan Risni Julaeni
Published: January 2021

Pandemi Covid-19 yang terjadi saat ini memaksa kampus Politeknik STATISTIKA Journal of Theoretical Statistics and Its Applications STIS untuk melakukan Pembelajaran Jarak Jauh. Dalam sistem tersebut dosen sebagai pihak pemberi material stimulus dan pendorong, sedangkan peserta belajar sebagai pihak penerima informasi yang berperan untuk mempraktekan stimulus dan respon yang diberikan. Hal ini menyebabkan mahasiswa harus melakukan effort yang lebih besar untuk mendapatkan tingkat pemahaman yang maksimal. Penelitian ini berupa studi kasus dengan populasi seluruh mahasiswa tingkat III Politeknik STATISTIKA Journal of Theoretical Statistics and Its Applications STIS tahun akademik 2019/2020. Adapun tujuan dalam penelitian ini yaitu untuk menganalisis perbedaan lama waktu belajar mahasiswa dan faktor-faktor apa saja yang memengaruhinya pada sebelum dan saat terjadinya pandemi Covid-19. Metode analisis yang digunakan yaitu dengan MCA (Multiple Classification Analysis). Adapun variabel yang diduga berpengaruh terhadap lamanya waktu belajar yaitu jenis kelamin, peminatan, daerah tempat tinggal, indeks prestasi, dan jabatan dalam kegiatan PKL (Praktik Kerja Lapangan). Hasil penelitian menunjukkan bahwa terjadi penurunan waktu belajar mahasiswa pada saat kondisi pandemik Covid-19 dibandingkan saat kondisi normal. Hal ini dibuktikan dengan penurunan nilai grand mean waktu belajar mahasiswa. Selanjutnya diperoleh bahwa sebelum adanya Covid-19, hanya variabel jabatan di PKL yang menunjukkan hasil yang signifikan dalam mempengaruhi lama waktu belajar mahasiswa. Sedangkan pada saat kondisi pandemi Covid-19, tidak hanya jabatan di PKL, melainkan juga peminatan yang diambil mahasiswa berpengaruh signifikan terhadap lama waktu belajarnya.
The Role of Communication in Organizational Conflict Management at PT. Sinar Makmur Nusa Tenggara
Authors: Listyono Yovita Marsha
Published: January 2021

The sales team of PT. Sinar Makmur Timur, Nusa Tenggara area was formed in May 2019 and has been by the company standards in October 2019. In January 2020, the first conflict arose with the absence of the Sales Division during the morning briefing. Then the other conflicts have sprung up between the Sales Division and Area Sales Manager. This research focuses on the role of communication in organizational conflict management, especially the conflict between the Area Sales Manager and the Sales Division at PT. Sinar Makmur Timur Nusa Tenggara area. The approach to this research is a qualitative approach with a case study method. The results insulted that (1) the conflict is caused by the Sales Division which didn’t implement the Standard Operating Procedure (SOP). (2) The conflict resolution uses the team management style from R. Blake & Mouton, the collaborative style from Thomas & Kilmann conflict management, and the integrative negotiation. (3) Communication plays a role in conflict management at PT. Sinar Makmur Timur Nusa Tenggara as the conflict itself as well as a means of conflict resolution. (4) The organizational communication approach in PT. The Sinar Makmur Timur Nusa Tenggara area is a classic approach.
The Agenda Setting of Corona: Analysis of the Corona Dissemination Impact on the Community
Authors: Abdullah Muhammad Qadaruddin , Hayat Nahrul , Rahman Abd.
Published: January 2021

This study is based on news dissemination about the Corona Virus Disease 2019, COVID-19, as a global pandemic. The massive amount of coronavirus news dissemination provokes the audiences to behave inappropriately. This study uses the theory of agenda-setting, which elaborates on the process of forming opinion in national television media. After that, the theory of media exposure is used to analyze the impact of exposure to the COVID-19 dissemination on social media. The research method used is a combination of qualitative and quantitative methods, namely, survey and interview in social media that is on the WhatsApp group of students and lecturers in the Province of South Sulawesi. The results of this study; First, the process of forming an opinion by the public media has not done proportionally, the information dissemination of the coronavirus had covered the dissemination of other important cases, such as the legal and corruption issues. Second, the effect of the COVID-19 news dissemination on social media not only had an impact on people's health but also a multi-effect toward the economic, religious, and psychological condition. The multi-dimensional impacts are responsible for setting the exposure of COVID-19 news dissemination as the single issue that makes the diversion of opinion and other issues occurred, such as legal and corruption cases which are no longer being a public talk.
MANAGEMENT OF INTEGRATED MADRASAH DINIYAH CURRICULUM DEVELOPMENT AT SD KHAZANAH ILMU SIDOARJO
Authors: Rojii Mohamad , Istikomah Istikomah , Mahfud Choirul , Saifulloh Moh. , Zuhair Muhammad
Published: January 2021

Madrasah Diniyah emerged as a place for religious education for people who wanted a portion of their children's religious education. If this Diniyah Madrasah can be run according to its function and managed with good management, then the Diniyah Madrasah can be one solution to the problems of Religious Education in Indonesia. This study aims to reveal how the management of Madrasah Diniyah curriculum development is integrated into primary education institutions. This research includes qualitative research; data collection is done by collecting documents, conducting interviews, and observing at the research site. This study's data were analyzed using analytical techniques, including reduction, presentation of data, and concluding. The results of this study stated that the management of the integrated Madrasah Diniyah curriculum at SD Khazanah Sciences was carried out with a process including planning, organizing, implementing, monitoring, and evaluating the founders as initiators of curriculum development ideas at the institution. After that, a curriculum development team was formed with specific tasks according to their respective responsibilities to start the curriculum development process based on philosophical, psychological, sociological, and juridical foundations.Keywords: Management Curriculum Development, Integrated Madrasah Diniyah, Basic Education Institutions. Abstrak Madrasah Diniyah muncul sebagai wadah pendidikan Agama bagi masyarakat yang menginginkan porsi pendidikan Agama yang lebih banyak bagi anak-anak mereka. Jika Madrasah Diniyah ini dapat dijalankan sesuai dengan fungsinya dan dikelola dengan manajemen yang baik, maka Madrasah Diniyah dapat menjadi salah satu solusi bagi permasalahan Pendidikan Agama di Indonesia. Penelitian ini bertujuan untuk mengungkap bagaimana bentuk manajemen pengembangan kurikulum Madrasah Diniyah yang terintegrasi pada lembaga pendidikan dasar. Penelitian ini termasuk jenis penelitian kualitatif, pengumpulan data dilakukan dengan cara mengumpulkan dokumen-dokumen, melakukan wawancara, dan juga melakukan observasi di tempat penelitian. Adapun data pada penelitian ini dianalisis dengan menggunakan teknik analisis yang meliputi reduksi, penyajian data, dan penarikan kesimpulan. Hasil penelitian ini menyatakan bahwa manajemen pengembangan kurikulum Madrasah Diniyah terintegrasi di SD Khazanah Ilmu dilaksanakan dengan proses meliputi perencanaan, pengorganisasian, pelaksanaan, pengawasan, dan evaluasi para pendiri sebagai inisiator ide pengembangan kurikulum di lembaga tersebut. Setelah itu, dibentuklah tim pengembang kurikulum dengan tugas-tugas khusus sesuai tanggung jawab masing-masing untuk memulai proses pengembangan kurikulum dengan berlandaskan pada landasan filosofis, psikologis, sosiologis, dan yuridis.Kata Kunci: Manajemen Pengembangan Kurikulum, Madrasah Diniyah Terintegrasi, Lembaga Pendidikan Dasar.
DEVELOPMENT OF INTEGRATED CHARACTER EDUCATION MODELS IN PAI LEARNING AT UNIVERSITY
Authors: Siregar Hapni Laila , Ramli Ramli
Published: January 2021

Abstrak Penelitian ini bertujuan untuk mengembangkan model pendidikan karakter terintegrasi dalam pembelajaran PAI di Perguruan Tinggi. Karakter-karakter yang diintegrasikan dalam pembelajaran PAI dalam penelitian ini mengacu kepada karakter-karakter yang dibutuhkan di abad ke-21. Seorang mahasiswa yang berkarakter akan mampu berperan serta secara positif baik sebagai pribadi, sebagai anggota keluarga, anggota masyarakat, warga negara, maupun warga dunia. Penelitian ini menggunakan pendekatan kualitatif dan kuantitatif dengan metode penelitian R&D dari Borg & Gall. Teknik pengumpulan datanya menggunakan observasi, wawancara, angket dan skala sikap. Teknik analisis data kualitatif merujuk pada tiga langkah dari Miles & Huberman. Sementara teknik analisis data kuantitatif menggunakan uji Wilcoxon. Penelitian dilakukan di beberapa jurusan di Universitas Negeri Medan pada semester genab Tahun Akademik 2018-2019. Penelitian ini menghasilkan temuan bahwa model pendidikan karakter terintegrasi dalam pembelajaran PAI dalam penelitian ini efektif mengembangkan karakter mahasiswa terutama karakter kreatif, kerja keras dan mandiri, serta efektif mengembangkan keterampilan berkreativitas Islami dan berdakwah virtual.  Kata Kunci: Pengembangan Model; Pendidikan Karakter; Pembelajaran PAI. Abstract This study aims to develop an integrated character education model in Islamic Education learning in tertiary institutions. The characters integrated in Islamic Education learning in this study refer to the characters needed in the 21st century. A student with character will be able to participate positively both as individuals, as family members, members of society, citizens, and citizens of the world. This study used a qualitative and quantitative approach with the R&D research method from Borg & Gall. Data collection techniques using observation, interviews, questionnaires and attitude scales. Qualitative data analysis techniques refer to the three steps of Miles & Huberman. Meanwhile, the quantitative data analysis technique used the Wilcoxon test. Research was conducted in several departments at Medan State University in the even semester of the 2018-2019 Academic Year. This study resulted in the finding that the integrated character education model in Islamic Islamic education in this study was effective in developing student character, especially creative character, hard work and independence, and was effective in developing Islamic creativity and virtual da'wah skills. Keywords: Model Development; Character building; PAI learning.
Parents’ perception of the school nurse’s role
Authors: Diane Gillooly , Ganga Mahat , Patricia Paradiso
Published: January 2021

Background: School nurses possess an essential role in treating and helping children maintain health. However, the full scope of their role has not been identified by parents. Therefore, the purpose of this study was to explore parents’ perceptions of the role of the school nurse. Methods: Descriptive statistics were used to analyze the data. One hundred eighty parents participated in the study. The perception of the roles of school nurses was assessed by a 16-item questionnaire, which was adapted from a study by Kirchofer, et al. 2007. Results: The four most important school nurses’ roles perceived by the parents were providing first aid and emergency care to children, communicating with parents and health care providers in the presence of a problem, providing medical treatment, and preventing and controlling diseases. Conclusion: School nurses have many important roles, and while parents identified some essential roles, they did not recognize other vital roles as being very important. Increasing awareness of school nurses’ multifaceted roles among parents is essential so that they can utilize nurses’ expertise in maintaining their student’s health as well as tap into a key resource in the coordination of care for their child.
Pengukuran Efektifitas Pembelajaran Kewirausahaan Dalam Meningkatkan Minat dan Tindakan Berwirausaha Mahasiswa
Authors: Rahman Agussalim , Amir Muhammad
Published: January 2021

The aims of this study was to determine the effectiveness of entrepreneurship learning in increasing the entrepreneurial interest and actions of students who have taken entrepreneurship courses. Research respondents were 94 students of STIE Tri Dharma Nusantara class AKC-1 and AKC-2 who took Entrepreneurship courses in V semesters (shortterm) 2020 .The research approach is a combination of a quantitative approach and a qualitative approach. In this study, researchers used numerical or numeric data in which respondents' answers were made in the form of a Likert scale. Measurement of the effectiveness of research variables was carried out using descriptive statistical analysis techniques by comparing the actual score against the ideal score against each research indicator. The results of the analysis of the total score of the indicator of the interest in entrepreneurship indicator reached 81.29% so that entrepreneurship learning was very effective in arousing interest in entrepreneurship among students.The indicator for entrepreneurial action which is measured by the presence of entrepreneurial activities of students only reaches a score of 10.28%, which means that entrepreneurial learning is not effective in making students take entrepreneurial actions.
Efektivitas Penggunaan Modul Belajar Mata Pelajaran Ekonomi Berbasis Mind Mapping Untuk Meningkatkan Kemampuan Berpikir Kritis Siswa Kelas X SMA Negeri 3 Tangerang
Authors: Hidayati Syafaatul , Sholeh Badrus
Published: January 2021

The purpose of this study in detail to determine the effectiveness of using mind mapping-based economic learning modules in improving students' critical thinking skills. The research method was used by researchers in this research was the quasi research method (Quasi Experiment Research). The test subjects were students of class X IPS at SMA Negeri 3 Tangerang. Data on critical thinking skills were obtained from giving test questions in the form of descriptions. Analysis of critical thinking skills consists of 2 steps, namely the prerequisite test and hypothesis testing. Based on the test results, it showed that the data was normally distributed, with the Shapiro-Wilk pretest sig value 0.069> 0.05 and the posttest sig value 0,082 > 0.05. Moreover, a hypothesis test was carried out to determine differences in critical thinking skills before and after being taught by using a mind mapping based learning module with the Paired Sample T Test statistical technique. The sig value is > 0.05 (5%), which means that H0 is accepted, and if the sig value is <0.05 (5%), it means that H0 is rejected. Thus the mind mapping-based economic learning module can improve students' critical thinking skills
Pengembangan Buku Ajar Perkoperasian Indonesia Dalam Perkuliahan Mahasiswa Prodi Pendidikan Ekonomi
Authors: Sefaverdiana Putri Vina , Fandyansari Melisa Wahyu
Published: January 2021

Indonesian Cooperative textbooks are development research aimed at developing quality textbooks and can effectively improve understanding of existing cooperatives in Indonesia. Textbooks as a support in Cooperative lectures, in order to improve student learning in class so that students have understanding and skills in cooperating. The purpose of this textbook is to make it easier for students to learn and understand as a provision for students to develop cooperatives in their respective areas of residence. The method in this research is a research and development research using a model from Dick and Carrey. The test results obtained from the first material expert were 84.5%, the second material expert obtained 76.4%. 3%. After the expert test was carried out a small-scale test where the result was 82.6% and the large-scale test obtained a result of 86.3%. From the results of the percentage, it states that the textbook is in the good category and is feasible to apply
Pengembangan Media Pembelajaran Ekonomi Berbasis Komputer Model Drills untuk Siswa Kelas X SMA Islam Bina Insan
Authors: Mawarzani Sapka , Haeri Refreandi
Published: January 2021

Media is anything that can be used to transmit messages from sender to receiver so that it can stimulate thoughts, feelings, attention, and student interests in such a way that the learning process occurs, media in education is used to improve the quality of learning, one of which is based learning media. computer. It is the duty and responsibility of the teacher in utilizing learning media that is in accordance with the needs and interests of student learning, and one of the media that is in accordance with student learning interests, namely computer-based learning media drills model. The objectives of this research and development are: 1) to produce a Drills model of computer-based economic learning media which will be used for the following years in class X students of Bina Insan Islamic Senior High School 2) to determine the feasibility of computer-based economic learning media developed according to the assessment of media experts and experts material, 3) knowing the responses of expert validators and students to the Drills model of computer-based economics teaching materials that have been developed, and 4) knowing the effectiveness of the developed drills model of computer-based economic learning media. This type of research is development research with the Borg and Gall model which has been modified into eight development steps. Development steps include: 1) potentials and problems, 2) data collection, 3) product design, 4) design validation, 5) design revision, 6) product testing, 7) product revision, and 8) final product. Data collection was carried out by means of questionnaires and tests. The target output of this research is publication in accredited national journals, another output can be a computer-based learning media product model of drills. The results showed that, 1). There is a product in the form of a computer-based economic learning media with the Drills model for Bina Insan Islamic Senior High School. 2). This Drills model of computer-based economic learning media is feasible to use, it can be seen from the validation results of economic material experts of 89.09% (feasible), for media experts it is 92.30% (feasible). 3). The teacher and student responses showed a positive response seen from the results of field trials, namely the results of the teacher's questionnaire response of 100% and student responses of 89.6%. 4). For the results of student learning activities of 3.7, thus the Driils Model of computer-based economic learning media is effectively used
Peran Badan Usaha Milik Desa (Bumdes) Dalam Pemberdayaan Ekonomi Masyarakat Di Desa Mas-Mas Kecamatan Batukliang Utara Kabupaten Lombok Tengah
Authors: Majdi Muhammad Zainul , Susilawati Susilawati , Muhammad Farhana , Nurhastusti Nurhastuti
Published: January 2021

This study aims to know the role of Village-Owned Enterprises (BUMDES) in society economic empowerment at Mas-mas Village, Batukliang Utara District, and Central Lombok Regency. This study was descriptive qualitative approach. The study was conducted from June to July at Mas-Mas Village, Batukliang Utara, and Central Lombok. The data collection techniques used interview, documentation, and observation with study subjects, namely the Head of Village, BUMDES management and some society of Mas-mas. The researcher used techniques of source triangulation. Data analysis in this study uses an interactive analysis model that is analysis using data reduction, data presentation, and verification and conclusions. The results of this study indicated that the role of BUMDES Lintang Mas had not been maximized in society economic empowerment at society of Mas-mas Village; it can be seen from the types of businesses run by BUMDES. In addition, the level of society participation was still low.
Pengaruh Kehidupan Sosial Dan Ekonomi Keluarga Terhadap Pernikahan Dini Pada Tahun 2020
Authors: Utomo Danang Prio , Ali Muhamad , Aprianti Rini
Published: January 2021

West Nusa Tenggara (NTB) is recorded as a province with a fairly high rate of young marriage (merariq kodek), especially in East Lombok then North Lombok. Many factors cause underage marriages, including factors due to love, economic factors, matchmaking factors, dropping out of school, and pregnancy outside of marriage. The purpose of this study was to examine the influence of family social and economic life on early marriage. The method used is a quantitative method with a descriptive approach, in general there are 33 samples (respondents) but after using the sample calculation technique with the Slovin formula, 30 respondents can be drawn, the respondents consist of various backgrounds of married age, different occupations. All data were processed by multiple regression analysis by looking at the validity test, reliability, classical assumption test (data normality test, multicollinearity test, and heteroscedasticity test) and hypothesis testing using the F test and t test. The results of this study indicate that there is an influence of family social and economic life on early marriage. This is indicated by the simultaneous test results of F count of Early Marriage at (45.191) with a probability level (0.000) which means that together the Social and Economic Life of the Family has a share in influencing Early Marriage in the hamlets of Penyenggir, Manggong and Batu Gapit. 3) From the significant test it is also proven that each independent variable also has a significant effect on the dependent variable. Social life variable (X1) has a significant influence on early marriage in the villages of Penyenggir, Manggong and Batu Gapit. This is indicated by t count (4.537) with p value (sig) 0.000 smaller than 0.05, meaning that social life has a role in influencing early marriage in the village of West Sikur. The family economic variable (X2) also has a significant effect on early marriage in the village of West Sikur. This is indicated by t count (3.735) with a p value (sig) of 0.001, which is below 0.05, which means that the family economy has a role in influencing early marriage in the hamlets of Penyenggir, Manggong and Batu Gapit.
Pemodelan Anomali Gravitasi Menggunakan Grablox untuk Identifikasi Injeksi Fluida pada Reservoir
Authors:   Prodi Pendidikan Fisika, FMIPA, Universitas Mataram, Zuhdi Muhammad , Ardhuha Jannatin ,   Prodi Pendidikan Fisika, FMIPA, Universitas Mataram, Kosim Kosim ,   Prodi Pendidikan Fisika, FMIPA, Universitas Mataram, Wahyudi Wahyudi ,   Prodi Pendidikan Fisika, FMIPA, Universitas Mataram, Ayub Syahrial ,   Prodi Pendidikan Fisika, FMIPA, Universitas Mataram
Published: January 2021

The 4D microgravity method is a development of the gravity method with the time as the fourth dimension. This research was conducted to find a better way of interpreting the 4D gravity anomaly due to fluid injection around the reservoir. Researchers used GRABLOX for the interpretation of 4D anomalies around the reservoir. The results of the inversion of field data using GRABLOX provide the value of the injection fluid infiltration volume, which shows the distribution of the injection fluid movement on the reservoir. Another physical parameter that can be generated from GRABLOX with a modified value is the reduction in oil and gas saturation due to fluid injection. The inversion results using GRABLOX in the field data indicate a change in reservoir rock density up to 0.28 gr/cc associated with a reduction in gas and oil saturation. The reduction in gas saturation due to the injection fluid has the smallest value of 0% and the largest is up to 66%. The reduction in oil saturation only contributes to a density change of 20% of the reduction in gas saturation. The results of the GRABLOX trial on synthetic data and field data show that both can provide an identification of the movement of the injection fluid in the reservoir, as well as provide other physical parameters, ie. the reduction in oil saturation due to fluid injection.
Investigating the diversity of endophytic fungi colonizing leaves of three species of mangroves in Corentyne, Berbice, Guyana
Authors: Vashti D. Sital  , Phillip N.B. Da Silva  , Ferial Pestano
Published: January 2021

Endophytic fungi are those that colonize the living tissues of plants without causing any disease symptoms. As colonisers of different parts and species of plants, they offer protection to the plant against herbivore and insect pest damages while also producing secondary metabolites which can be used in biotechnological processes. The aim of this study was to investigate the diversity of endophytic fungi colonizing the leaves of the Avicenna germinans (Black mangrove), Rhizophora mangle (red mangrove) and Laguncularia racemosa (white mangrove), from Palmyra, Bush Lot Beach and Wellington Park Beach, Corentyne, Berbice, Guyana South America. A total of 303 isolates were obtained from this study. These isolates were classified into 18 species and 9 genera. The 18 species obtained are Aspergillus calidoustus, A. flavus, A. fumigatus, A. luchuensis, A. nidulans, A. niger, A. terreus. Aspergillus spp., Alternaria spp., Candida krusei, Cladosporium spp., Curvurlaria spp., Fusarium spp., Penicillium spp., Penicillium chrysogenum, Penicillium citrinum, Pythopthora spp., and Rhizopus spp. Based on the Shannon Weiner Diversity Index (H’) calculation, Avicenna germinans was found to have the greatest species diversity followed by Rhizophora mangle and then Laguncularia racemosa. Aspergillus was found to be the most dominant genus of all isolates with A. niger and A. flavus being the most common species among all three species of mangroves.
In vitro investigation of the antisickling properties of aqueous fruits extracts of Citrus paradisi, Musa acuminata and Malus domestica
Authors: Augustine O. Odibo  , Ifunanya R.  Akaniro  , Emmanuel M. Ubah
Published: January 2021

Sickle cell disease (SCD) is a genetic blood disorder that affects the shape and transportation of red blood cells (RBCs) in blood vessels, leading to various clinical complications. Many drugs that are available for treating the disease are insufficiently effective, toxic, or too expensive. Therefore, there is a pressing need for safe, effective, and inexpensive therapeutic agents from indigenous plants used in ethnomedicine. In the current study, the potentials of aqueous extracts of Citrus paradisi, Musa acuminata, Malusdomestica fruit in sickle cell disease management were investigated in vitro using P-hydroxybenzoic acid and normal saline as positive and negative control respectively. The method employed the inhibition of sodium metabisulphite induced sickling of HbSS red blood cells, collected from confirmed sickle cell patients. Results obtained showed that; 50 mg/ml aqueous extract of Musa acuminata showed the lowest sickling inhibition (80.3%) at 60 minutes while 1 mg/ml gave the highest inhibition of 97.3% at 90 minutes. For Citrus paradisi, lowest (83.3%) and highest (98%) sickling inhibitions were obtained with 25 mg/ml and 50 mg/ml fruit extracts at 30 minutes and 60 minutes respectively. Malus domestica had the highest antisickling activities of 99% and 99.33% respectively at 30 and 60 minutes. In all, the sickling inhibition was least with Musa acuminata but highest with Malus domestica. Also, highest inhibitions were observed at 60 minutes (optimum time) and 10 mg/ml (optimum concentration). This study has demonstrated that; Malus domestica, Citrus paradisi and Musa acuminata possess antisickling potentials useful in the management or therapy of sickle cell diseases.
Inhibition of untranslated region, subgenomic RNA, and TMPRSS2 for SARS cov-2.
Authors: Karkour Ali
Published: January 2021

The SARS CoV-2 genome contains untranslated region (UTR) which regulates RNA replication and transcription, and subgenomic RNA (sgRNA) which encodes the 4 structural proteins where the virus cannot proliferate without them. The SARS CoV-2 host cell contains TMPRSS2 protease enzyme which activates the virus to enter the cell. The chemical compounds Peptide Conjugated Phosphorodiamidate morpholino Oligomer (PPMO) and Benzylesulfonyl-d-arginine-proline-4-amidinobenzylamide (BAPA) have prevented the TMPRSS2 expression in influenza host cell. PPMO also has inhibited the UTR of influenza genome and the sgRNA of porcine reproductive and respiratory syndrome virus (PRRSV), so PPMO and BAPA could inhibit the UTR and sgRNA of SARS CoV-2, and prevent the expression of TMPRSS2 in SARS CoV-2 host cell, that prevents virus replication. This may open the way for the development of anti SARS CoV-2 therapy.
Smoking, ulcerated coronary plaques, and smoker’s paradox: A new hypothesis
Authors: Richard James Frink
Published: January 2021

Smoking accelerates the onset of acute coronary disease. Smoker’s paradox is the term applied to the observations that the short-term prognosis following an acute myocardial infarction is better in the smoker than in the nonsmoker. Efforts to explain these surprising observations have not been successful. The approach used in this study was to compare the pathologic findings in the coronary arteries following a complete histologic examination of the major branches of the epicardial coronary tree in smokers and nonsmokers. I found many ulcerated plaques in both smokers and nonsmokers, often without associated luminal stenosis or luminal thrombosis. These ulcerated plaques were discovered only on histologic examination and were consistently associated with dense foci of adventitial inflammatory cells. Based on these findings, the following hypothesis is proposed: Smoking injures the coronary artery endothelium, causing erosions, ulcerations, and a chronic inflammatory response in the arterial adventitia. These ulcerated plaques persist as chronically active, open ulcerations, constantly exposed to flowing blood, leading to increasing luminal stenosis as long as smoking continues. These ulcerated plaques eventually form the substrate for occlusive thrombosis and acute coronary events and are components of active, progressive, inflammatory, atherosclerotic disease. Premature acute coronary disease in the young smoker is due to accelerated plaque ulceration, luminal stenosis, and occlusive thrombosis. Smoker’s paradox can be explained by rapid resolution and healing of these potentially unstable ulcerated plaques when the patient is required to stop smoking during hospitalization for the acute myocardial infarction event.
Advanced spinal movements (ASM) as manipulative treatment in back pain and promotion of spinal column
Authors: Manjunatha NS
Published: January 2021

The human back is composed of a complex structure of muscles, ligaments, tendons, disks, and bones, which work together to support the body and enable us to move around. The segments of the spine are cushioned with cartilage-like pads called disks. Problems with any of these components can lead to back pain. In some cases of back pain, its cause remains unclear. Low back problems affect the spines flexibility, stability, and strength, which can cause pain, discomfort and stiffness. Approximately 80% of individuals will experience an episode of lower back pain at some time during their life. Lower back pain is the fifth leading reason for patients visiting a doctor and the leading cause of work related disability. However, the underlying cause is usually not serious and may not even be identified by the doctor. Lower back pain is most common in patients between the ages of 20 and 40 years, but can be more severe and disabling in elderly patients. The ASM technique was implemented in private clinic with aims to increases the strength, stability & flexibility of spine & prevent the different kinds of back problems. As the pain was relieved almost and the patients will be encouraged to practice the ASM technique regularly, even after the pain has gone, to prevent back pain/problems recurrence and promotion of spinal column.
Hard tissue inducibility of a novel synthetic peptide in rat pulp
Authors: Nozomi Matsuo  , Norimasa Tsuji  , Kazuya Tominaga  , Hiroshi Maeda
Published: January 2021

Enamel matrix derivative (EMD) is a periodontal tissue regeneration material that induced hard tissue formation. This study was performed to examine the reaction of dental pulp tissue directly capped with a synthetic peptide prepared based on EMD research, and to investigate its potential as a pulp capping material. The experiments were performed in the maxillary left and right first molars of five 6-week-old male Sprague–Dawley rats. The exposed pulp was capped with synthetic peptide in the peptide group, but left uncapped in the control group. Two weeks later, the maxillary bone was isolated and photographed by microfocus computed tomography (CT). The opaque area and volume of the coronal pulp cavity were measured on CT images, and the area-to-volume ratio was calculated. After decalcification, tissue samples were prepared, stained with hematoxylin and eosin (H&E), and examined histopathologically. CT images for both groups showed an opaque area in the coronal pulp cavity, and the fraction of images showing opacity was significantly higher in the peptide group (P < 0.01). A large amount of hard tissue was formed in the coronal pulp cavity in the peptide group, around which aggregation of cells with eosinophilic substances in polytopes was observed. Only slight hard tissue formation was observed in the control group. As it showed eosinophilicity on H&E staining, the synthetic peptide was suggested to be involved in hard tissue formation. Synthetic peptides can potentially be used as pulp capping materials.
Disparity in bone mineral density of males and females with age
Authors: Nusrat Aziz
Published: January 2021

Decline in bone mass with aging leads to osteoporosis and fragility fractures. It has profound effect on the morbidity and health quality of the elderly, creating financial burden on the society. Usually, age related loss in bone mass goes undiagnosed until a fragility fracture occurs. It was observed that the bone mineral density (BMD) was found to be lesser in females compared to males in all age groups. There were significant BMD differences between males and females from age 41 yrs and above, BMD declined with age in both males and females. The maximum decline was observed in age group of 41 yrs -50 yrs compared to the control group of 20 yrs-30 yrs. The decrease in BMD was highly noticeable in females, with osteoporosis from age group 51 yrs-60 yrs. It coincides with peri-menopausal and early after menopause period. In males osteoporosis was not observed until the age of 80yrs, though osteopenia have been observed from 41 yrs onwards. There is a paramount need of awareness about detrimental effects of aging on BMD in order to bring about necessary lifestyle changes and follow therapeutic measures. This enables us to attain higher peak bone mass and maintain higher bone densities.
The fuzzy goal programming approach to production planning of intermediate gear spare parts: a case study
Authors: Ishak Aulia , Nababan Poltak
Published: January 2021

Production planning has an important role in the company's business processes. A company engaged in the manufacture of intermediate gear parts has a problem in optimizing its production system. The production planning system that occurs is still based on predictions from decision-makers. This study aims to optimize the production planning system to maximize the 15T intermediate gear spare parts' production capacity and the 30T intermediate gear spare parts. Optimization of production planning uses the fuzzy goal programming method to optimize objectives based on existing constraints such as working hours, profit tolerance values, and demand tolerance values. The results showed that the use of fuzzy goal programming was able to increase the production level by 2.765, with an increase in profit of 2.57%. Fuzzy goal programming implementation provides an optimal solution in increasing profits in accordance with company goals based on the constraints that occur.
Preservation of Spermatozoa Sumba Ongole Bulls Using Citrate Yolk Diluent with the Addition of Palmyra Palm Juice
Authors: Ina Anita Tamu , Kaka Alexander
Published: January 2021

The purpose of this study was to determine the quality of the ability of spermatozoa cells to maintain the use of a yolk citrate (YC) diluent with the addition of palmyra palm juice during preservation. The material used for this research was 2 Sumba Ongole bulls as a source of semen. Semen was collected by using an artificial vagina that is processed twice a week. The obtained semen was macroscopically analyzed, including volume, colour, consistency, pH and smell. Meanwhile, microscopic evaluation includes mass movement, motility, concentration, viability and abnormalities. The semen showed >75% motile sperm divided into four treatments and dilute each with YC (P0), 95% YC+5% palmyra palm juice (PPJ) (P1), 90% YC+10% PPJ (P2), 85% YC+15% PPJÂ  and each was stored at 3-50C. The results of statistical analysis showed that P0, P1 treatments were significantly different (P<0.05) between P2, P3 from day 0 to day 4 of storage. The addition of palmyra palm did not affect the motility of spermatozoa, but had a positive effect on the viability of spermatozoa with the addition of 5% palm sap during storage for 4 days at a temperature of 3-5 0C.