bluuebunny/crossref_metadata_2025 huggingface dataset:
Pendampingan Product Mix Sebagai Strategi Menghasilkan Benih Ciplukan Pada Usahatani Sawi Caisim Sistem Seri Di Kecamatan Lingsar
Authors: Tajidan Tajidan , Sahidu Arifuddin , Karyadi Lalu Wiresapta , Suparmin Suparmin
Published: March 2021

Penerapan sistem tanam monokultur pada budidaya tanaman sawi memiliki risiko  produksi, resiko harga dan resiko penghasilan. Resiko tersebut dapat diatasi dengan penerapan teknologi tanaman seri dan penerapan strategi produk campuran melalui diversifikasi tanaman dan sumber penghasilan. Tujuan yang hendak dicapai adalah menambah pengetahuan kelompok sasaran akan kandungan dan khasiat buah ciplukan bagi pemeliharaan kesehatan tubuh; menambah mengetahui petani tentang nilai ekonomi komoditas buah ciplukan; dan meningkatkan pengetahuan dan keterampilan petani tentang teknologi budidaya tanaman seri sebagai strategi menghasilkan buah dan benih ciplukan sebagai sumber penghasilan baru (product mix). Agar tujuan tersebut dapat tercapai maka dilaksanakan pengabdian kepada masyarakat dengan menggunakan metode pendidikan orang dewasa (andragogy) yaitu melakukan pendampingan kepada anggota kelompok tani yang mengusahakan tanaman sawi caisim. Sebagai entry point pendampingan adalah mengintroduksikan teknologi budidaya tanaman sawi caisim sistem seri, dan penanaman tanaman ciplukan dengan teknik polibag dan/atau sebagai tanaman penyangga tanaman sawi caisim sebagai upaya  menghindari risiko produksi, resiko harga, dan resiko penghasilan.  Hasil yang dicapai dari kegiatan pengabdian kepada masyarakat adalah: pengetahuan petani peserta pengabdian kepada masyarakat telah meningkat dari 61,9%  menjadi 83,33% tentang pupuk dan teknik pemupukan tanaman sawi; dari 21 orang peserta yang hadir dalam kegiatan pengabdian kepada masyarakat diantaranya 30,16% telah mengetahui manfaat ekonomi dan teknologi budidaya sistem tanam seri sawi caisim; buah dan benih ciplukan dapat diperoleh dari hasil budidaya menggunakan polibag atau tanam langsung di tanah dengan memanfaatkan lahan pekarangan yang terbuka dan memperoleh penyinaran matahari langsung, atau melalui diversifikasi tanaman sawi caisim dengan tanaman ciplukan
Wisata Kuliner Sate Ikan Tanjung
Authors: Ardana Putra I Nyoman Nugraha , Hardi Sudi , Kartin Yosyana , Zulfahni Yulia , Saadiah Hayatus , Raheni Raheni , Ihsan Hairil , Syahraini Nurul , Eriana Eriana , Milayati Milayati , Yuma Yuma
Published: March 2021

Desa Tanjung terletak di Kecamatan Tanjung Kabupaten Lombok Utara Propinsi Nusa Tenggara Barat. Tanjung memiliki Potensi wisata kuliner yang sangat terkenal, salah satunya yaitu sate tanjung. Sate Ikan Tanjung ini sudah sangat melekat di dalam ingatan masyarakat tanjung maupun diluar tanjung. Wisata tidak hanya berbicara mengenai keindahan alam, namun juga  termasuk juga kuliner. Ketika berkunjung kesuatu daerah, hal yang tidak boleh terlewati yaitu mencicipi kuliner khas daerah tersebut. Perlu pemahaman bagi wisatawan untuk mengetahui makanan khas daerah Tanjung, prosespembuatannya dan tentu juga akan berdampak meningkatkan pendapatan bagi usaha dagang Sate Ikan Tanjung
Penerapan Teknologi Sel Surya Pada Penerangan Jalan Umum Di Dusun Gitaq Demung Desa Genggelang Kecamatan Gangga Kabupaten Lombok Utara
Authors: Rachman A. Sjamsjiar , Iqbal Muhamad Syamsu , Misbahuddi Misbahuddi , Syafaruddin Syafaruddin , Wiriasto Giri Wahyu
Published: March 2021

Gempa darat berkekuatan 6.5 Mw yang melanda Lombok Timur NTB tanggal 19 Agustus 2018. Peristiwa tersebut adalah gempa bumi ketiga yang menerjang Lombok setelah Gempa bumi Lombok Juli 2018 dan Gempa bumi Lombok 5 Agustus 2018. Lombok Utara adalah daerah yang paling terdampak gempa karena berdekatan dengan pusat gempa 7 Mw. Sejumlah wilayah yang potensial dan infrasruktur Penerangan Jalan Umum (PJU) Kabupaten Lombok Utara rusak parah, khususnya di Dusun Gitaq Demung, Desa Genggelang, Kecamatan Gangga. Karena persoalan keterbatasan penerangan jalan umum, maka dalam kegiatan pengabdian masyarakat ini, tim membantu merevitalisasi PJU di daerah sekitar Dusun Gitaq Demung, serta kaitannya dengan tersedianya sumber energi listrik bagi warga. Sebagai tahapan lanjutan dalam mengatasi berbagai hambatan infrastruktur vital lainnya, dan menyiapkan infrastruktur pendukung, maka tim memberikan bantuan dalam bentuk kegiatan pelatihan perancangan dan pemasangan PJU dengan memanfaatkan sel surya sebagai cadangan energi secara terbatas.
Isıl İşlemin Bazı Geniş Yapraklı Ağaç Türlerinde Eğilme Direnci Üzerine Etkilerinin Taguchi Metodu Kullanılarak İncelenmesi
Authors: BERAM Abdullah
Published: March 2021

Taguchi metodu, hedef değere ulaşmak için yapılacak olan deney sayısını azaltarak, ürün ve süreçte oluşabilecek değişkenliği en aza indirgemeye çalışan bir deney tasarımı yöntemi olup, uygulamalarda zaman ve maliyet kazancı sağlamaktadır. Bu çalışmada, ülkemizde yayılışı bulunan doğu kayını (Fagus orientalis L.), sapsız meşe (Quercus petraea L.) ve adi dişbudak (Fraxinus excelsior L.) türlerine 160, 180 ve 200 °C sıcaklıklarda, 2, 4 ve 6 saat süreyle ısıl işlem uygulanmıştır. Isıl işlem sonrasında, örneklere eğilme direnci testleri yapılmış, ısıl işlem sırasındaki sıcaklık ve süre farklılıklarının ağaç malzemenin eğilme direnci üzerine etkileri Taguchi yöntemi kullanılarak incelenmiştir. Taguchi metodunun uygulamasında, amaca uygun faktör ve seviyeler belirlenerek, L9 (33) ortogonal dizisi deney planı olarak seçilmiştir. Deneysel bulgulara S/N oranına göre hesap tablosu uygulanmış, varyans analizi ve Taguchi yöntemleri kullanılarak analiz edilmiştir. Sonuçlara göre, istatistiksel analizler sonrasında elde edilen en iyi değerin meşe türünde 160 °C’de 2 saatlik uygulama ile sağlanacağı tahmin edilmiştir. Yapılan doğrulama deney sonucu, analiz sonucu ile tutarlılık göstermiştir.
Aprendizaje Basado en Proyectos (ABP): experimentación en laboratorio, una metodología de enseñanza de las Ciencias Naturales
Authors: Causil Vargas Luis Alfonso , Rodríguez De la Barrera Adrián Enrique
Published: March 2021

El presente artículo muestra los resultados de una investigación realizada en el año 2019, en la Escuela Normal Superior Santa Teresita, del municipio de Lorica, departamento de Córdoba, tuvo como objetivo estudiar los efectos del uso de la estrategia de aprendizaje basado en proyectos (ABP) mediante la experimentación en el laboratorio, como una metodología de enseñanza de las Ciencias Naturales. El estudio fue observacional y analítico de cohorte. El estudio se realizó con 65 estudiantes divididos en dos grupos, uno experimental, al cual se le aplicó la metodología de aprendizaje basado en proyectos a través de una técnica basada en la experimentación y uso de laboratorio como estrategia de aprendizaje y otro grupo como control, usando una estrategia convencional. Se aplicó el coeficiente Alpha de Cronbach de 0.88 donde se analizaron tres variables: competencia cognitiva, competencia interpersonal y competencia intrapersonal. Los resultados muestran que alumnos pertenecientes al grupo experimental, obtuvieron mayor porcentaje por nivel en las tres competencias, con respecto al grupo control. En conclusión, el método de Aprendizaje Basado en Proyectos, resulta ser una herramienta útil para aumentar la capacidad de análisis, riqueza conceptual, conocimiento alfabético y resolución de problemas de experimentos y prácticas de laboratorio, en el área de las ciencias naturales.
Reassessing second language reading comprehension: Insights from the psycholinguistics notion of sentence processing
Authors: Zudianto Hardian , Ashadi Ashadi
Published: March 2021

Theories and practices in second language reading pedagogy often overlook the sentence processing description from the psycholinguistics perspective. Second language reading comprehension is easily associated with vocabulary learning or discourse strategy. Yet, such activities can lead to an unnatural way of reading such as translating vocabularies or pointing out information as required. Meanwhile the authentic way of reading should encourage a natural stream of ideas to be interpreted from sentence to sentence. As suggested by the sentence processing notion from the psycholinguistics point of view, syntax appears to be the key to effective and authentic reading as opposed to the general belief of semantic or discourse information being the primary concern. This article argues that understanding the architecture of sentence processing, with syntactic parsing at the core of the underlying mechanism, can offer insights into the second language reading pedagogy. The concepts of syntactic parsing, reanalysis, and sentence processing models are described to give the idea of how sentence processing works. Additionally, a critical review on the differences between L1 and L2 sentence processing is presented considering the recent debate on individual differences as significant indicators of nativelike L2 sentence processing. Lastly, implications for the L2 reading pedagogy and potential implementation in instructional setting are discussed.
The influence of systemic racism on quarter-life crisis in The Autobiography of Malcolm X (as told to Alex Haley)
Authors: Nugroho Bhakti Satrio , Aryani Dwi Septi
Published: March 2021

This paper aims to analyze the influence of systemic racism on quarter-life crisis, experienced by Malcolm X, as seen in The Autobiography of Malcolm X (As Told to Alex Haley). Its emphasis is to find the relation between racial segregation in American society and its influence on quarter-life crisis, which is a psychological crisis of uncertainty, self-insecurity and identity confusion, occurs during emerging adulthood. Therefore, by applying a qualitative method, this research is under Post-Nationalist American Studies and psychosocial approach as an integrated paradigm which accommodates the inter-disciplinary aspects of �self and society�. The analysis showed that racial segregation, in the field of education and job occupation, is a form of systemic racism which influences Malcolm X�s mental wellness as an emerging adult African-American. He experiences Robinson�s phases of quarter-life crisis which are locked in, separation/time-out, exploration and rebuilding. In fact, racial segregation in this narrative works as �a function of blocked opportunities� which disallows young African-Americans to develop their own competencies and to achieve their �American Dream�. However, in the development of his quarter-life crisis, Malcolm X managed to rebuild his new long-term commitment contributing to the reconstruction of his adult identity as an African-American Muslim activist.
Gender stereotypes in Nancy Meyers� �The Intern� (2015): A study of film audience response
Authors: Trisnawati Ririn Kurnia , Adiarti Dian , Agustina Mia Fitria
Published: March 2021

Previous film studies focusing on gender stereotypes have been sufficiently conducted, yet what remains understudied is the study of film audience about dynamic gender stereotypes shown in one film. Conducting film audience study with the issue of dynamic gender stereotype allows discussions about audience�s perceptions, awareness and underlying knowledge of gender stereotypes. This study attempts to unravel responses collected from thirteen audience of Nancy Meyer�s �The Intern� (2015) and formulates two research objectives i.e. first, to discuss how the audience of �The Intern� perceive the dynamics of gender stereotype depicted in the film and, second, to examine the underlying insights of their perceptions. The incorporated theories are film audience study, serving also as methodological approach,�and the discourse of gender stereotype and its changing perspectives. The finding and discussion show that the audience of �The Intern� perceive the inclusion of gender stereotypes and its dynamic change in the film, and their perceptions are followed by several reasons and insights: the story-line of �The Intern� and the audience�s prior knowledge about gender stereotypes. Awareness and sensibility of gender stereotypes are also revealed after watching �The Intern�. Lastly, discussion about the intersection of the audience�s prior knowledge with the exposure about gender stereotype from various resources is also carried out.
Back to Java: The discourse of Lombok art in Salman Faris�s Kenari Mentaram
Authors: Satrya HD Dharma , Nursaly Baiq Rismarini
Published: March 2021

This article is triggered by the emergence of ethnicity aspects in Indonesian literature. The importance of ethnicity in Indonesian literature is because Indonesian literature is assumed to be plural, not singular. That is, the reality of Indonesia in Indonesian literature is not limited to one ethnicity, but various ethnicities. In the perspective of modern Indonesian literature, Indonesian novels are synonymous with Malay, Jakarta, Java and several other cities that have contributed to the development of Indonesian literature. In the perspective of ethnic Indonesian literature, Indonesian novels are identical with ethnicities whose existence is ignored in modern Indonesian literature. In this context, ethnic Indonesian literature is important to explore. This article explores the interesting representation of Lombok in Ethnic Indonesian literature. Lombok serves an ethnic that needs to be analyzed in Indonesian literature, because Lombok is assumed to be part of Java (Marrison, 1999; Meij 2011) and Lombok is hegemonyed in Java (Satrya, 2018). The problem is whether Indonesian literature still represents Lombok as shown by Marrison, Meij, and Satrya in the study of philology and literature. The Indonesian novel of Lombok delineating the issue of Java in interpreting Lombok is the novel Kenari Mentaram (2013) by Salman Faris. This article applies Stuart Hall�s representation theory and model. Based on that theory, the novel Kenari Mentaram is assumed to be a production of meaning regarding Lombok. The analytical method uses the semiotic analysis method and the Stuart Hall discourse model. Lombok is interpreted in the novel Kenari Mentaram in the context of internationalization. In this context, Lombok's art is the only commodity that can be sold. The art of Lombok represented is the art of Lombok which is capable of competing internationally by taking a model from Java. Thus, the internationalization of Lombok can only be done by taking the Javanese Model. In the� internationalization context, the discourse of Lombok art discussed is the multicultural art of Lombok. The Kenari Mentaram novel delineates as part of the discourse of the nationalization of Lombok in the context of Indonesian literature and the internationalization of Lombok in the context of tourism.
Sundanese�s children naming tradition: A descriptive case study of language maintenance and shift in Bandung
Authors: Suherman Rudi
Published: March 2021

A name given to someone may represent his ethnic background. Therefore, it is likely used by most people in recognizing where someone comes from. This study is aimed at examining the possible correlation between children�s name given by their Sundanese parents with their ethnic background in maintaining the Sundanese language in local region in Bandung, the Capital city of West java. 17 Sundanese family are involved in this descriptive case study. Both parents, representing by 17 fathers and 17 mothers, originally come from different region in west java province and have resided in Bandung for more than a decade. The data, embracing the characteristic of survey, are gained from a set of questionnaires and semi -structured interview consisting of questions related to family�s background, the name given, as well as the reason that drives them giving the names. This study has revealed the current trend on naming tradition in Bandung in which there is a shift from Sundanese, to other language particularly Arabic. This may be happened because most of the participants in this study are Muslims. Hence, Arabic as the language of Islam predominantly influence the naming tradition in Sundanese family.
Technology-enhanced formative assessment in higher education: A voice from Indonesian EFL teachers
Authors: Luthfiyyah Roghibatul , Aisyah Aisyah , Sulistyo Gunadi Harry
Published: March 2021

The integration of information communication and technology in language teaching has been intensely examined in literature works. However, the study which explicitly investigates the advancement of technology for language assessment in higher education level is still underexplored, particularly in a formative assessment area. To fill that gap, the present study aims at investigating the perceptions of EFL teachers towards technology-enhanced formative assessment and how they implement it in the classroom. This study employs a qualitative case study approach. Of three participants from different universities were voluntarily participated in a semi-structured interview. The interview seeks to investigate the perceptions of teachers towards technology-enhanced assessment, the roles of technology in formative assessment, and the impact of technology on language learning. The findings reveal that EFL teachers view formative assessment as well as technology in a positive perception. They admit that technology is a practical tool that has multiple roles and it is deemed as useful and meaningful platform for assessing students. Finally, technology-enhanced formative assessment gives an impact on students� performance, particularly on language accuracy. The further implications are discussed in this paper.�
The effectiveness of MALL and flipped classroom in teaching writing to the eleventh graders of SMA in Banyumas
Authors: Krisbiantoro Benny , Pujiani Tri
Published: March 2021

MALL has become an invaluable means in teaching writing for learners in and out of the classroom. Although there were many researches on MALL to enhance writing competence, analytical exposition text writing was never carried out. This study was aimed to investigate whether: (1) MALL was more effective than Flipped classroom to teach writing for the eleventh graders of SMA (senior high school); (2) the high creative students possessed better writing skills than the low creative ones; and (3) an interaction effect occurred between the methods of teaching and creativity to teach writing for the eleventh graders of SMA in Banyumas. The employed method was an experimental research with factorial design. The population of the research was the eleventh graders of SMA in Banyumas. Four schools were purposively taken. There were two samples in this research; experimental class comprising 72 students from SMAN 01 Banyumas and SMAN 01 Baturraden and control class containing 72 students from SMAN 03 Purwokerto and SMAN 01 Sokaraja. The occupied instruments in this research were verbal creativity and writing test. The data analyses were in the matter of frequency distribution, normality, homogeneity, ANOVA and TUKEY. The results of the study revealed that: (1) MALL is more effective than Flipped classroom in teaching writing for the eleventh graders of SMA; (2) the high creative students possessed better writing competence than the low creative students; and (3) an interaction effect happened between the methods of teaching and creativity in regards to writing teaching.
On commercialization of waste rock dumpsand the role of drilling and blasting operations in this process
Authors: Zharikov S.N.
Published: March 2021

On the territory of the Russian Federation, exactly as in the rest of the world, huge amounts of mining waste have been accumulated. Most of them in open-pit mining are dumps of rock mass that occupy huge territories and have a significant negative impact on the earth's ecology. Most of the dumps are non-toxic and can be used for economic purposes where sand and stone are needed-in construction. However, the volumes are too large and only a small part can be used for the production of building materials. Another thing is if you need a large amount of rock for the construction of a long roadbed. There are other requirements for raw materials and the possibility of releasing large areas occupied by dumps. This direction has significant potential, because on the one hand, cheap construction raw materials, and on the other – a reduction in fees for the use of land (especially relevant for large mining and processing plants). The development of dumps as man-made deposits has its own risks and associated problems. However, it leads to the development of new technological solutions, which in turn opens up certain prospects for subsoil users. Currently, this direction is in its infancy, but the scale of the problem of storing dumps is already obvious. Therefore, despite the doubts, recycling of dumps is inevitable. It is also clear that this processing should be in huge volumes. And such volumes of use in the Russian Federation can only be achieved when building roads.
Comprehensive Assessment of Working Conditions and Occupational Disease Rates at Mining and Metallurgical Enterprises
Authors: Chebotarev A.G. , Sementsova D.D.
Published: March 2021

The paper presents the results of hygienic assessment of the working environment and work process factors at surface and underground ore mining operations, ferrous metallurgy plants and aluminum production facilities. It has been established that workers are affected by a complex of production factors (dust, toxic substances, noise, vibration, unfavorable micro climate, etc.), the level of which often exceeds the hygienic standards. The workplace conditions of the primary jobs at these enterprises in 60-80% of cases are classified as hazardous, i.e. Class 3 of various hazard degrees. The incidence of occupational diseases remains high, especially in underground mining and at aluminum production plants. The specific features of mining and metallurgical operations and the severity of unfavorable production factors determine the structure of occupational morbidity. Occupational respiratory diseases are most common among workers in the ferrous metallurgy industry and account for 70.3% in total. Vibration-induced pathologies are most frequently diagnosed among excavator, bulldozer and dump truck operators, and account for 52.9% of all the diagnosed occupational diseases. Hearing organ pathology in the form of neurosensory loss of hearing among workers of mining and metallurgical enterprises ranges from 10.2% (aluminum smelters) to 22.7% (ferrous metallurgy plants) in the occupational morbidity structure. Chronic intoxication with fluorine compounds at aluminum smelters was diagnosed in 68.1% of cases. The results obtained confirm the pressing need to improve the working conditions, introduce preventive measures based on the primary prevention principles, and reduce the risk factors of health problems among the workers.
Base Metals: 2021 Perspectives
Authors: Kondratiev V.B.
Published: March 2021

Metal experts have seen a big swing in prices and expectations in last nine months .More than 90% of the incremental demand of metals in 2020 came from a single country i.e. China. On the one hand, China stepped up local consumption of metals into infrastructure spending. However, it is highly likely that Chinese intensity of demand for commodities will face a slump. Further, Chinese export growth could cool in 2021 as manufacturers in developed markets recover post vaccination. Can the demand of metals from the rest of the world offset slow Key words: ing Chinese intensity in 2021?
Issues and Prospects for the Development of Uzhuralzoloto Group of Companies in Conditions of Global Challenges
Authors: Strukov K.I. , Rylnikova M.V.
Published: March 2021

The 2020 Pandemic has become a global economic, social and environmental challenge for all countries, including those engaged in mining and that are not expected to stop their mining and mineral processing activities for technical and economic reasons. The mining sector will be particularly important in the near future for the economy of the developed countries as the foundation to recover from the crisis. Mining companies in Russia have demonstrated their resilience to this global-scale shock. Mining companies had to adapt quickly to the new conditions to ensure sustainability during this period. Strategic management of risks associated with the pandemic as well as adequate and timely decisions made by the management of the Uzhuralzoloto Group of Companies ensured sustainable operation of all the mining facilities. The company met the challenges of the global pandemic with a sufficient stock of strength, a commitment to effectively ensure sustainable operation, to maintain the required level of safety and to provide the necessary support to the local administration and communities in the region.
Prospects for Increasing Mineral Resource Base of Non-Ferrous Metals Industry
Authors: Titova A.V. , Golik V.I.
Published: March 2021

The importance of research into enhancing the metal mining technologies is justified by the declining availability of mineral resources due to non-compliance of the conventional mining methods with the market conditions. The traditional ore processing technologies are accompanied by accumulation of processing tailings. Zero-waste recycling of primary processing waste, which is often used without extracting metals to match the sanitary standards, is not evolving. The acute environmental issues are primarily exacerbated by a lack of levers for centralized accounting and management of the accumulated waste. The aim of the study is to develop new technologies that are optimized in terms of complete utilization of the off-grade raw materials i.e. wastes from primary ore processing. The effectiveness of leaching technologies is proved with a complex method that involves experiments and calculations comparing the performance of processing options using the Box-Behnken design of metal extraction and interpreting the results in the form of logarithmic or polynomial interpolation. Quantitative values were obtained and cross-plots of metal extraction dependence on the contributing factors were made, which allow characterizing the leaching processes of polymetals and ferruginous quartzites in the disintegrator. It has been proved that mechanochemical treatment provides higher metal yield (up to 45%) than traditional waste processing technologies while securing a safety level that meets the sanitary requirements. It has also been determined that disintegrator activation during the metal leaching process increases the strength of concrete mixtures based on re-treated tailings, both as aggregates and as a binder. A conclusion is made that activation of the leaching processes in a disintegrator ensures the extraction of 50 to 80% of metals that are not available for extraction from mill tailing with conventional technologies. Development of man-made deposits using innovative technologies based on metal leaching is a real step towards expanding the mineral resource base of the metallurgical industry and improving the environmental situation in the mining regions. In contrast to technologies of a similar scope and purpose, the proposed technology makes it possible to process ores in a zero-waste manner without creating new tailings.
Impact of Raw Material Quality on Performance of Mixing and Charging Machines in Drilling and Blasting Operations
Authors: Morozova T.S.
Published: March 2021

A study into the failure causes of mixing and charging equipment confirms that the main impact on the probability of accidents is the use of raw materials that do not meet the specifications and have unstable properties. The raw materials used for explosives preparation in mechanized charging of boreholes include such components as ammonium nitrate, emulsion phase, diesel fuel, emulsifier and others. The paper describes the application of various formulations with these components in specific types of mixing and charging machines manufactured by AZOTTECH LLC. The main properties that affect the quality of raw materials are summarised, and the incoming inspection of explosive components is described as part of the acceptance procedure at temporary storage sites at a hazardous production facility. The paper describes common types of equipment failures and maintenance procedures when using substandard raw materials. The conclusion highlights the key practices to improve the equipment uptime as well as recommendations for incoming inspection and the use of high-quality explosive components.
Iron ore market report 2019–2020
Authors: Ericsson M. , Löf A. , Löf O.
Published: March 2021

Preliminary figures of global iron ore and steel production in 2020 show a slight decline. The article reviews iron ore production by global companies (Vale, Rio Tinto, BHP, FMG, Anglo American, etc.) in 2019 and 2020, as well as production figures by the leading steel producing countries (China, India, Japan, Russia, USA, South Korea) in 2020. Iron ore imports and exports are also analyzed. It is noted that the global iron ore exports had increased by around 43% over the previous decade, however, they went down by 1.7% in 2019, and this decline in exports continued in 2020. Australia is the largest iron ore exporter with a market share of 55%; this share increased by one percentage point in 2020 compared to the previous year. Green-field projects by global producing companies are presented in Brazil, Australia and other countries. A conclusion is made that despite a 3.5% decline in the global economy forecast by the International Monetary Fund in 2020, it is possible to acknowledge that the iron ore market is well balanced. However, if steel demand and steel production volumes increase unexpectedly and some of the planned new mines are not commissioned, the surplus can quite promptly turn into a deficit. In the long term, the plans to produce steel without using fossil fuels, without coke and therefore without CO2 emissions, could revolutionize the iron ore market and increase the demand for products with a high iron content. Источник: https://mining-media.ru/en/articles/original-paper/16396-iron-ore-market-report-2019-2020
Design Web-Based Registration And Data Management Of Student Thesis Information System
Authors: Thamrin Rosiyati MH , Andriani Rian
Published: March 2021

The thesis data management process at STIMIK Sepuluh Nopember Jayapura currently still uses Microsoft Excel, so the processing takes a lot of time, another obstacle that arises is the title submission process, where students have to come to campus to submit titles then announcements still use the announcement board so that students who want to get the information must go to the STIMIK Sepuluh Nopember campus. The purpose of making the system is to solve the above problems and at the same time make it easier for students in the process of submitting titles. The design of this system uses the waterfall method, while the data collection method uses several methods such as observation, interviews and literature study. For web development using the PHP programming language. The final result of this design is a web that can be used by students to submit titles, see a list of thesis titles that have been taken and so on. While the output from the web that is made is a list of student thesis titles STIMIK Sepuluh Nopember Jayapura and announcements such as approval of titles submitted, supervisors, examiners and payment issues.

 
DÜŞÜK TENÖRLÜ MANYETİT CEVHERİNİN MANYETİK AYIRMA VE YERÇEKİMİ İLE ZENGİNLEŞTİRİLMESİ: TANE BOYU ETKİSİ
Authors: Sis Hikmet , Karaağaç Tekin , Birinci Mustafa , Kıyak Tufan
Published: March 2021

This study compares the efficiency of different methods in beneficiation of iron ore from Doğanşehir (Malatya) region. It is a low grade ore with 27.43 % Fe content that requires concentration to meet the specifications of blast furnace feed. The ore mainly contains magnetite, ferro-actinolite and magnesioferrite. The collected samples were classified into different size fractions after size reduction and then subjected to different gravimetric and magnetic separation methods for concentration. The results showed that particle sizes affected the concentrations to a large extend, but wet magnetic separation yielded comparably better results than gravimetric methods. A concentrate assaying 65.66 % Fe and 0.38 % K2O+Na2O was obtained with 78.11 % recovery by wet magnetic separation. It was concluded that concentrates meeting blast furnace specifications could be obtained from this low grade iron ore. It was also concluded that the proposed separation flow sheet can be applied to similar low grade iron ores in the region.
REKABET STRATEJİLERİNİN ÖRGÜTSEL PERFORMANSA ETKİSİ, GİRİŞİMCİLİĞİN ARACILIK ROLÜ
Authors: ARIKAN Özgür Uğur , ÇALIŞKAN Abdullah
Published: March 2021

Örgütsel performans, hızla değişen pazarda ve artan rekabet koşullarında önemli bir kavram olarak nitelendirilmektedir. Faaliyetlerinin çıktılarını hedeflerine uygun düzeyde tutabilen organizasyonlar değişken ve rekabetçi çevrede ayakta kalabilmektedir. Rekabet edebilmek ve rekabeti sürdürülebilir kılmak için seçilen jenerik stratejilerin, örgütsel performansı artırdığı değerlendirilmektedir. Hızla değişen çevresel koşulları hızla kavrayabilen girişimci bireylerin, örgütsel performansa katkı yaptığı değerlendirilmektedir. Bu bağlamda rekabet stratejilerinin örgütsel performansa etkisi ve girişimciliğin bu etkideki aracılık rolü araştırılmıştır. Mersin Tarsus Organize Sanayi Bölgesi’nde yer alan 163 işletmeden toplam 511 çalışandan veri toplanmıştır. Veriler SPSS ve AMOS paket istatistik programları ile analiz edilmiştir. Yapılan hiyerarşik regresyon analizi sonucunda rekabet stratejilerinin örgütsel performans üzerinde olumlu anlamlı etkilerinin olduğu ve bu etkide girişimci davranışın da aracılık etkisinin olduğu bulgusuna ulaşılmıştır.
TESTING THE RELATIONSHIPS BETWEEN ENERGY PRICES AND THE BORSA ISTANBUL INDICES
Authors: TEMEL Faruk , ERYİĞİT Mehmet
Published: March 2021

Oil and natural gas which are the most used energy sources are consumed as raw materials in many fields. The development of technology and population increase makes these energy sources important for financial markets and the overall economy. Turkey, energy importing and developing country, may be influenced intensely by changes in energy prices. In this study, long-term and short-term relationships between energy prices and Borsa Istanbul indices using daily data between 01.01.2007-31.10.2017 were examined by Johansen cointegration, vector autoregression (VAR), Granger causality tests, and impulse-response functions. The long-term relationship between energy prices and Borsa Istanbul indices was not found. On the other hand, it was concluded that energy prices had positive impacts on Borsa Istanbul indices in the short-term. Furthermore, oil prices Granger cause natural gas prices, Food Beverage, and Chemical Petrol Plastic indices.
THE IMPACT OF TOURISM ON THE ECONOMIC GROWTH IN THE MEDITERRANEAN COUNTRIES: EVIDENCES FROM HIDDEN PANEL COINTEGRATION TEST
Authors: BELKE Murat , BOLAT Süleyman , HATEMİ-J Abdulnasser
Published: March 2021

The effect of tourism on economic growth is capturing the attention of researchers and policy makers worldwide. Many countries, both developed and developing ones, are systematically putting forward crucial strategies in order to promote their tourism industry with the main goal of achieving enhanced economic growth. Our main objective is to test for the potential asymmetric interaction between economic growth and tourism for a panel consisting of fourteen Mediterranean countries that covers the sample period 1995-2017 using hidden panel cointegration and asymmetric panel causality tests as developed by Hatemi-J (2020a; 2020b). Our empirical investigations indicate that there are indeed asymmetric impacts within our panel system. The impact of an increase in tourism on economic growth is stronger in the absolute terms compared to the impact of a corresponding decrease in tourism on growth.
OLASI DEPREM DURUMUNDA MAHALLE ÖLÇEĞİNDE BURDUR KENTİ ACİL TOPLANMA ALANLARININ YETERLİLİĞİNİN SAPTANMASI
Authors: AŞIKKUTLU Hüseyin Samet , AŞIK Yasin , YÜCEDAĞ Cengiz , KAYA Latif Gürkan
Published: March 2021

Farklı şekillerde ve zamansız ortaya çıkan afetler, can ve mal kaybına sebep olmaktadır. Sık sık afetlere maruz kalan Türkiye’de en fazla can ve mal kaybına neden olan afet, depremdir. Afet durumunda insanların güvende kalabileceği ve hızla ulaşabileceği en önemli alanlar acil toplanma alanlarıdır. Bu alanların varlığı ve yeterliliği çok önemlidir. Burdur ilinin bulunduğu coğrafi konum itibariyle deprem riski yüksektir. Bu araştırmada Burdur kent merkezinde yer alan acil toplanma alanları alan büyüklüğü, etkili hizmet alanı ve kişi başına düşen toplam alan vb. mekansal standartlara göre incelenmiştir. Araştırma Burdur kent merkezinde yer alan acil toplanma alanlarının planlama esasları gözetilmeden belirlendiğini ortaya çıkarmıştır. Kent ölçeğinde acil toplanma alanları her ne kadar yeterli gözükse de mahalle ölçeğinde yetersiz kalmaktadır. Burdur kent merkezinde meydana gelebilecek olası bir depremin etkileri yıkıcı olacaktır. Mevcut acil toplanma alanlarının risk değerlendirmesi veya yeni acil toplanma alanlarının belirlenmesinde kapasite, erişim ve mekansal dağılım dikkate alınmalıdır.
YOLSUZLUK VE MUHASEBE KALİTESİ İLİŞKİSİ
Authors: ÇETENAK Emin Hüseyin , KÖSE Eda , BEKCİ İsmail
Published: March 2021

Bu araştırmanın amacı, yolsuzluk ve muhasebe kalitesi arasındaki ilişkiyi incelemek ve söz konusu ilişkiyi verilerine ulaşılabilen 11 farklı ülke için test etmektedir. Araştırmada, 2009-2019 yılları arasında Türkiye ve 10 farklı ülkenin yolsuzluk endeksleri ile bu ülkelerde faaliyet gösteren 3816 işletmenin isteğe bağlı tahakkukları incelenmiş araştırma sonucunda yolsuzluğun muhasebe kalitesini etkilediği sonucuna ulaşılmıştır. Çalışmada isteğe bağlı tahakkukların hesaplanmasında Düzeltilmiş Jones Modelinden faydalanışmış yolsuzluk endeksi ise Dünya Bankası veri tabanından alınmıştır.
Strategic Orientation and Performance of Small and Medium Enterprises (SMEs) in Sabah, Malaysia
Authors:   Universiti Teknologi Mara, Sabah Branch, MALAYSIA, Yumboris Yusak , Albert Gisip Imelda ,   Universiti Teknologi Mara, Sabah Branch, MALAYSIA, Ambad Nabila Azwa ,   Universiti Teknologi Mara, Sabah Branch, MALAYSIA
Published: March 2021

This paper seeks to examine the effects of strategic orientation (SO) to Small and Medium Enterprises (SMEs) performance in Sabah, Malaysia context. Specifically, the effects of two components of SO namely Market Orientation (MO) and Entrepreneurial Orientation (EO) towards SMEs performance in in Sabah, Malaysia context are discussed. In addition, Technology Orientation (TO) as moderator to the relationship between the two SO components and SMEs performance will also be deliberated. This paper is mainly based on secondary sources of information, through references and review of articles in selected journals pertaining to strategic orientation and SMEs performance.This paper highlights past studies on the relationship between the two main components of SO and its effects to SMEs performance. The reviews also address the related gaps from previous studies.The work of the researcher is genuine reference to published literatures and seeks to contribute to the development of knowledge by adapting and testing the moderating effect of technology orientation in the relationship between SO and SMEs performance.
Pertussis vaccines and the role of Bordetella pertussis lipooligosaccharide in the immune response to pertussis infection and vaccination
Authors: Alekseeva I. A. , Perelygina O. V. , Kolyshkina E. D.
Published: March 2021

Some scientific publications contain data suggesting the “return” or “resurgence” of pertussis. Prevention and elimination of pertussis can only be achieved by extensive immunisation of susceptible populations with a highly effective vaccine. The aim of the study was to characterise available whole-cell and acellular pertussis vaccines and to assess the feasibility of improving their quality, for instance, to demonstrate the role of lipooligosaccharide (LOS)—Bordetella pertussis cell wall antigen—in the induction of adaptive immunity. The paper summarises pathogenesis of pertussis, development of post-infection and post-vaccination immunity, and potential ways of improving pertussis vaccines. Improvement of quality of available vaccines can be achieved by reducing reactogenicity of whole-cell pertussis vaccines and enhancing immunogenic activity of acellular pertussis vaccines. One way to reduce reactogenicity of a whole-cell vaccine is to reduce the number of pertussis cells in the vaccine dose, provided that this does not affect the immunogenic activity of the product. Another possible way of reducing reactogenicity is to select vaccine strains based on the LOS endotoxin content. Improvement of acellular vaccine quality involves addressing many issues, such as identification and isolation of new protective antigens. Literature review demonstrated that LOS is a key antigen, because it is involved in the body’s immune response and ensures Th1 and Th17 cell responses to pertussis, which is crucial for protection from B. pertussis bacteria. Considering the evolutionary stability of the LOS structure, this antigen (i.e. its non-toxic oligosaccharide part) can be considered as a candidate for acellular pertussis vaccine.
Current incidence of certain clostridial infections: gas gangrene and tetanus
Authors: Komarovskaya E. I. , Perelygina O. V.
Published: March 2021

Clostridial myonecrosis or gas gangrene (myonecrosis) and tetanus are relatively rare nowadays, but they are still considered serious conditions associated with poor prognosis and high mortality. Life-threatening infections caused by Clostridium species have been known and studied for centuries, as they differed from other infections in terms of typical clinical manifestations, challenges of therapy and prevention. The aim of the study was to analyse the global incidence of gas gangrene and tetanus and challenges of prevention and treatment of these diseases. The review of up-to-date scientific literature demonstrated that gas gangrene continues to be a problem due to its rapid progression and challenging treatment. There are two main forms of the disease—traumatic and spontaneous. Traumatic gas gangrene is usually caused by C. perfringens, C. septicum, C. novyi (oedematiens), or C. histolyticum. Its incidence increases dramatically during wars, natural disasters, and other calamities. The literature review demonstrated that over the past 40 years there has been a rise in the frequency of spontaneous gas gangrene caused by C. septicum in people with compromised immune systems, in injecting drug users, and in women during various gynecological procedures and during normal delivery. Despite the effectiveness of the tetanus immunisation programme, the infection remains widespread in countries with insufficient vaccination coverage. The risk of tetanus in developed countries is high among elderly unvaccinated or partially vaccinated people, among injecting drug users, and vaccine refusers. The paper describes some clinical cases of gas gangrene and tetanus which demonstrate problems associated with challenging diagnosis and treatment, low awareness among primary healthcare personnel about mechanisms of anaerobic infection development, and anti-vaccination movement.
Study of biological properties of Leptospira interrogans serovar Canicola strains as candidate components of human leptospirosis concentrated inactivated vaccine
Authors: Trotsenko A. A. , Kovrizhko M. V. , Yagovkin E. A. , Vanzha V. S. , Reshetov А. A.
Published: March 2021

Leptospirosis is a widespread zoonosis in Russia. The human leptospirosis vaccine produced by Rostov Research Institute of Microbiology and Parasitology has been used since 1998 to minimise risks associated with deterioration of epidemiological situation. Lately, there has been an increase in the incidence of leptospirosis caused by Leptospira interrogans serovar Canicola which is not included in the human vaccine. The aim of the study was to analyse biological properties of Leptospira interrogans serovar Canicola strains to substantiate their inclusion into human leptospirosis liquid concentrated inactivated vaccine. Materials and methods: two L. interrogans serovar Canicola strains: Udalov 480 and Sobaka 2000 were used in the study. Virulent properties of the strains were evaluated by infecting Syrian hamsters, the data on specific activity of the experimental vaccine were compared to specific activity of the leptospirosis liquid concentrated inactivated vaccine used for disease prevention. The experimental vaccine was tested for Specific safety and Abnormal toxicity according to FS.3.3.1.0014.15 Leptospirosis liquid concentrated inactivated vaccine. Results: the comparison of Udalov 480 and Sobaka 2000 strains of L. interrogans serovar Canicola revealed higher virulence of Udalov 480. The tests performed for the experimental vaccine batches demonstrated that the inclusion of Udalov 480 strain did not affect the above-mentioned properties of the vaccine. Conclusions: the study demonstrated the possibility of using L. interrogans serovar Canicola strain Udalov 480 as a component of the currently produced vaccine, and confirmed the safety and efficacy of the new vaccine.
Синтез и антидепрессивная активность 4-алкил-5-бром-2,4-дигидро-2-(тиетан-3-ил)-1,2,4-триазол-3-онов
Authors: Халиуллин Феркат Адельзянович , Никитина Ирина Леонидовна , Клен Елена Эдмундовна , Мифтахова Альбина Флюровна , Макарова Надежда Николаевна , Габидуллин Ришат Анварович , Гильманова Айгуль Гумеровна
Published: March 2021

Реакциями 5-бром-2,4-дигидро-2-(тиетан-3-ил)-1,2,4-триазол-3-она (I) с алкилгалогенидами и диметилсульфатом синтезированы 4-алкил-5-бром-2,4-дигидро-2-(тиетан-3-ил)-1,2,4-триазол-3-оны (IIa-g), структура которых подтверждена данными ИК-, а также 1H и 13C ЯМР-спектров. Антидепрессивная активность синтезированных соединений исследована в тестах подвешивания за хвост и принудительного плавания на неинбредных мышах-самцах. При однократном внутрибрюшинном введении соединения I, IIa,c,f,g оказывали антидепрессивное действие в скрининговых тестах и не вызывали седативного и/или психостимулирующего эффекта в тесте «Открытое поле». Сопоставимый с флуоксетином антидепрессивный эффект выявлен у соединения I, которое характеризовалось низкой токсичностью (IV класс токсичности) и превосходило флуоксетин по терапевтическому индексу и выраженности антидепрессивного эффекта при курсовом введении. Расчет физико-химических свойств и токсических рисков показал, что все синтезированные соединения удовлетворяют «Правилу пяти» Липинского. Расчетный показатель «drug score» и отсутствие прогнозируемых токсических рисков у наиболее активного соединения I позволяют сделать вывод о перспективности создания на его основе новой фармацевтической субстанции c антидепрессивной активностью.
Синтез, противоопухолевые и антибактериальные свойства производных 3-бензил-спиро[бензо[h]-хиназолин-5,1’-циклогептан]-4(6H)-она
Authors: Маркосян Ашот Ишханович , Айвазян Ани Сережаевна , Габриелян Сирануш Амбарцумовна , Мамян Сурик Сергеевич , Арсенян Флора Гайковна , Сафарян Асмик Генриковна , Аракелян Анаит Сааковна
Published: March 2021

Взаимодействием этил 4’-амино-1’H-спиро[циклогептан-1,2’-нафталин]-3’-карбоксилата с бензилизотиоцианатом с последующей циклизацией промежуточно образовавшейся тиомочевины разработан метод синтеза 3-бензил-2-тиоксо-2,3-дигидро-1H-спиро[бензо[h]хиназолин-5,1’-циклогептан]-4(6H)-она. Последний в присутствии щелочи алкилирован в 2-алкилтиозамещённые 3-бензил-3H-спиро[бензо[h]хиназолин-5,1’-циклогептан]-4(6H)-оны. Изучены противоопухолевые (в отношении асцитной карциномы Эрлиха и саркомы 180) и антибактериальные свойства синтезированных соединений. В качестве тест-объектов использованы грамположительные (St. aureus 200p и 1) и грамотрицательные микроорганизмы (Sh. flexneri 6858 и E. coli 0-55).