bluuebunny/crossref_metadata_2025_split huggingface dataset:
STUDI EKSPERIMENTAL PERFORMANCE KAVITASI WATERJET PROPULSI
Authors: Rumaherang Wulfilla M. , Louhenapessy J. , Noya Mesak F. , Tupamahu Cendy S. 
Published: September 2021

Cavitation is a complex phenomenon of dynamic processes in hydraulic machines that can cause a decrease in energy performance, vibration and damage the blade surfaces. Analysis of cavitation symptoms in hydraulic machines is carried out through cavitation performance studies, namely the relations between energy parameters. Each hydraulic machine has a critical value on a different cavitation performance curve. Therefore, a study of the effect of cavitation changes is needed to determine the working zone of hydraulic machines without cavitation. In this study, cavitation performance analysis was carried out on a waterjet propulsor model with 5 impeller blades and 7 stator blades using experimental methods. The cavitation coefficient was varied at σ = 2.25 to 0.25 by setting and controlling the inlet pressure on the cavitation test rig. The critical point value will be observed at the point where the thrust coefficient decreased to 3.28%. The results showed that cavitation begins at σ = 1, the critical point is obtained at σ = 0.75. From these studies, we find that waterjet must be operated at conditions where is σ > 0.75.
Bibliometric Analysis of the 103 Most-Cited Articles about COVID-19 in the Intensive Care Field
Authors: ÖNER Özlem , HANCI Volkan 
Published: September 2021

Introduction.:The COVID-19 pandemic affects the whole world and many studies were published about intensive care. Our aim is to assess the characteristics of 103 publications with most citations among literature related to COVID-19 in the intensive care field.
Methods: This descriptive cross-sectional study used suitable key words like “COVID-19”, “COVID-2019”, “SARS-CoV-2” and “pandemic” in the “Institute for Scientific Information Web of Science” database to determine the top 103 publications with most citations. Comparison of groups used the Kruskal Wallis and Mann Whitney U tests.
Results: Analysis of intensive care literature about COVID-19 up to October 2020 determined 1413 publications. The most-cited study had 1004 citations, while 7 was the minimum citations within the top 103 studies. The mean total citation number for these publications was 49.58±117.63. The most-cited study was by Xu, Zhe et al. in the April 2020 issue of Lancet Respiratory Medicine entitled “Pathological findings of COVID-19 associated with acute respiratory distress syndrome”. When the areas of focus of the top studies are investigated, they were COVID-19 treatment (26.21%), experience and recommendations about COVID-19 (23.30%) and COVID-19 physiopathology (13.59%).
Conclusions: Our study is the first to analyze the top 103 studies with most citations related to COVID-19 in the intensive care literature. With the spread of the pandemic, academic articles continue to be published with great speed. Bibliographic studies provide critical information to assess the citation profile and determine the areas of focus. Future intensive care publications about COVID-19 will focus on diagnosis, treatment and physiopathology.
Pengaruh Subtitusi Konsentrat dengan Tepung Maggot terhadap Pertambahan Bobot Badan dan Konversi Pakan Ayam Broiler
Authors: Budianto Muhammad Luthfi , Al kurnia Dyanovita , Hertanto Arif Arya 
Published: September 2021

Tujuan penelitian ini ialah untuk melihat pengaruh subtitusi konsentrat dengan tepung maggot terhadap pertambahan bobot badan dan konversi pakan ayam broiler. Materi menggunakan DOC umur 3 hari sebanyak 36 ekor, pakan yang dipakai ialah konsentart dengan merek MALINDO 8202-R, tepung maggot, jagung, dan bekatul dengan Perlakuan P0 Kosentrat 30%, bekatul 10%, jagung 60%, maggot 0%, P1 Kosentrat 20%, bekatul 10%, jagung 60%, maggot 10%, P2 Kosentrat 10%, bekatul 10%, jagung 60%, maggot 20%, P3 Kosentrat 0%, bekatul 10%, jagung 60%, maggot 30%. Metode penelitian ialah RAL (Rancangan Acak Lengkap) menggunakan 4 perlakuan dan 3 kali ulangan. Pada tiap perlakuan digunakan 9 ekor ayam dan di setiap perlakuan digunakan 3 ulangan dan disetiap ulangan isi dengan 3 ekor ayam. Dari hasil penelitian diperoleh rataan dan standar deviasi pertambahan bobot badan harian ayam broiler. Analisis ragam memperlihatkan bahwa penambahan tepung maggot tidak berpengaruh nyata (P>0.05) terhadap pertambahan bobot badan. Pada penelitian yang telah dilakukan menggunakan perlakuan P0 (0%), P1 (10%), P2 (20%), P3 (30%) diperoleh hasil rerata pertambahan bobot badan ayam broiler dengan perlakuan 27.02 ± 0,30 (P0), 27.30± 0,31 (P1), 27.54 ± 0,11 (P2), 27.35 ± 0,36 (P3). Sedangkan hasil konversi pakan memperlihatkan hasil mengunakan komersil dengan penambahan tepung maggot dengan taraf pemberian P0 (0%), P1 (10%), P2 (20%), P3 (30%), yang nilai konversinya terendah ialah P1 (0,79±0,00) sedangkan nilai konversi tertinggi adalah P0 sebesar (0,83±0,02). Secara numeric antar perlakuan terdapat perbedaan dalam variable konversi pakan, hal ini terlihat pada nilai konversi pakan P1 (0,79±0,00), P2 (0,79 ± 0,02), P3 (0,80 ± 0,03), P0 (0,83 ± 0,02).
El arte del grabado en España
Authors: Faraldo Ramón 
Published: September 2021

Seguramente mi primer deber ante ustedes, que han cometido la temeridad de venir a escucharme es el de justificar mi presencia, ya que la presencia de la exposición se justifica por sí sola.
Mi presencia aquí se debe a dos razones. La primera es cosa mía, y, por ello, puede quedarse en buena voluntad: la de contribuir a explicarles, por qué esta rama de arte de España es como es y no de otra manera.
On the Issue of Determining Relative Rail Rolling Contact Fatigue Damageability
Authors: Kossov V. S. , Savin A. V. , Krasnov O. G. 
Published: September 2021

Adoption of heavy haul traffic on many railroads, comprising Russian railways, has highlighted the relevance of assessing the effect of increased axial loads on the contact fatigue life of rails.The article describes a set of theoretical studies carried out to create a scientifically substantiated method for predicting the contact fatigue life of rails depending on the values of axial loads. The stress-strain state of the contact area has been determined using the finite element model of wheel rolling on a rail. It has been found that the wheel-rail rolling contact area undergoes complex multiaxial loading with the simultaneous action of normal and shear strains. Based on the analysis of models describing multiaxial fatigue damage, the Brown–Miller model was chosen, which considers the simultaneous action of normal strains at the contact area and of maximum shear strains, which most fully describes the stress-strain state of the wheel-rail rolling contact area. To apply the Brown–Miller model, fatigue stress-strain curves for rail steel have been identified. Based on the analysis of methods for determining the parameters of stress-strain curves carried out by V. A. Troschenko, a modified Roessle– Fatemi hardness method has been applied. Based on the experimentally determined values of hardness on the rolling surface, the parameters of the curves of elastic and plastic fatigue have been revealed by calculation and experiment. To establish the damaging effect of the load from wheel rolling on a rail, the concept of relative damage per rolling cycle had been assumed which is the value inverse to the number of cycles preceding formation of a contact-fatigue crack at a given value of the axial load.Calculations of the relative damage rate of the rolling surface of rails caused by contact fatigue defects were carried out with the Fatigue software package considering mean values of the indicators of the degree of fatigue strength and plasticity of rail steel and the calculated stresses in the wheel-rail contact area, as well as the plasticity correction using Neuber method. The polynomial dependence of relative damageability of the rolling surface of rails is obtained. The established functional dependence of relative damageability of the rolling surface of rails on the values of vertical forces can be used as the basis for the developed methodology for predicting the contact fatigue life of rails.
High-Speed Passenger Railway Transportation: Priority for Long-Term Developmen
Authors: Zheleznov M. M. , Karasev O. I. , Trostyansky S. S. , Smirnov R. G. 
Published: September 2021

High-speed passenger railway transportation is one of the priorities of scientific and technological development for most of the leading world railway companies that have global plans for construction of new high-speed rail lines (HSR).General review refers to plans of selected countries regarding construction of high-speed railways and the priority technologies/solutions required for the efficient provision of high-speed passenger services, as well as to costs and advantages associated with HSR construction. Besides, comparison of promising technology and adopted technical solutions is followed by assessment of their readiness level, and by features of HS trains operated by leading companies. Most important technologies comprise intelligent systems of autonomous train operation, remote traffic control, digital simulation of interaction of rolling stock and infrastructure, automated decision support systems, geospatial infrastructure monitoring, and real-time remote condition monitoring of rolling stock and infrastructure.Conclusions drawn argue in favour of promising character of research in the field of breakthrough technology conducted by railways, possibilities for Russia to join the countries with most advanced high-speed rail passenger transportation.
Gold Buckle of the Steel Belt of Russia. To the 120th Anniversary of the Circum- Baikal Railway
Authors: Levin D. Yu. 
Published: September 2021

120 years ago, on June 22 (June 9 old style), 1901 the Committee on construction of the Trans-Siberian Railway approved final decision on the location of the route of Circum-Baikal Railway (CBR).This railway is a monument to the heroic construction of the Trans-Siberian Railway. At the beginning of 20th century, the whole world followed its construction: someone with a shudder, someone with curiosity. The main goal was defined by the urgent need to connect the Central part of Russia and the Far East. Hence, there was an insurmountable natural obstacle on the way: the largest lake in the world. Today the CBR is an architectural reserve, englobing a huge number of engineering structures. Many of them are still unique. Prospecting work on Lake Baikal lasted for 13 years. The lake is surrounded by mountains, 300 tributaries from different rivers flow into it. So laying a railway track was an extremely difficult task, Russian engineers have brilliantly coped with.
GERMINABILITY OF VARIETIES OF BEAN (Phaseoulos Vulgaris L.) AND OKRA (Abelmoschus Esculentus L. Moench) UNDER LOW TEMPERATURE STORAGE CONDITION
Authors: Ariyarathna Indira , Weerasena Sarath , Beneragama Chalinda K. 
Published: September 2021

Bean and okra are common vegetables cultivated in the most regions of Sri Lanka. The seeds of these crops are mainly stored in cold storage as bulk before releasing retail lots to sales outlets. Commercial growers and gardeners buy seeds in bulk or in packages at retail stores. Although certified seeds are frequently tested by the seed testing laboratories, they do not guarantee the maximum field emergence. Certified seed lots of two pole bean varieties, ‘Keppetipola Nil’ (KN) and ‘Bandarawela Green’ (BG) and two okra varities,’MI-5’ and ‘Haritha’ were stored in poly sack and polypropylene bags under controlled temperature (17±1 °C) and relative humidity (RH) (52-55%) over a two-year period. Bulk seeds of bean and okra varieties packed in polypropylene and poly sack bags depicted a high germination percentage throughout the storage period for two years. Seed quality parameters, seed germination, seed moisture, field emergence and vigour index significantly varied with the storage duration and declined in varieties. Significant differences in moisture, field emergence and vigour index were recognized as affected by the packing materials in all varieties except MI-5. Both Poly sack and polypropylene packing materials were found suitable to maintain viability at the minimum seed certification standards for two years of storage period. Poly sack was more appropriate than polypropylene to keep viability for more than 2 years of storage under low temperature and RH condition. These findings would help seed handlers including seed producers and seed sellers to store crop seeds between growing seasons in the tropical environment.
The INSTRUCTION OF SCIENCE IN RURAL JUNIOR HIGH SCHOOL
Authors: Hayu Wiworo Retnadi Rias , Permanasari Anna , Sumarna Omay , Hendayana Sumar 
Published: September 2021

The teacher is an essential component of learning. Learning that is often focused by the government is learning in urban schools. Even though rural schools also have the same right to consider. Longer distances and access to schools that are more difficult to reach causes a lack of attention in rural areas schools. Learning in rural areas also requires attention to improve the quality of teaching. Knowing learning activities in rural schools is very important because it will understand what learning needs to be improved. The purpose of the research is to find out how teaching science in rural schools. This research uses mixed methods with the Taxonomy Development Model research design. The phase of QUAL is carried out to identify important variables. The development of a taxonomy or classification system, the development of theories that are not yet stable, and supporting it is a test in the phase of QUAN to obtain more thorough study results. The findings of this study illustrate that learning begins with answering questions, so students are enthusiastic. The next learning activity showing films about the reproduction of students was very excited about learning. The obstacle found in learning is the lack of preparation in the learning that is done so that time is wasted to condition the video playback.
MANFAAT KONSEP SISTER CITY BAGI LAHAN BASAH DAN MENGHADAPI BENCANA BANJIR
Authors: Mahdyannoor M. Raihan 
Published: September 2021

Dapat diambil kesimpulan bahwa pengelolaan lingkungan lahan basah mengakomodir berbagai kepentingan kegiatan pembangunan, seperti pembangunan pertanian, kepentingan industri, dan daya dukung lingkungan. Lahan basah merupakan kawasan produktif dengan keanekaragaman hayati dan non hayati yang memiliki potensi yang beragam sehingga pemanfaatan dan pengelolaan lahan basah yang baik akan menjadi sistem penyangga kehidupan yang sangat potensial.
Story-telling Silk Route Collapsing the Walls of Differences: An Analysis on Chitra Banerjee Divakaruni’s One Amazing Thing
Authors: Talukdar Susmita 
Published: September 2021

The article examines power of narrative/storytelling in developing collective force that would serve as survival strategy for facing catastrophe. In Divakaruni’s One Amazing Thing the nine characters, who are trapped by a major earthquake in the basement of a high-rise building of Indian visa office in US, go on telling his/her stories of their past, ‘one amazing thing’ of their lives that they have never been able to share with anyone. Like a very ancient story telling form e.g. the Panchatantra, stories lead to more stories. One story makes the listeners to muse about how it applies to their lives, and that ultimately leads them coming up with their own stories, the choice of which is influenced by the previous story. In their manner of telling stories, the characters feel strangely bound to each other, though they are so different from each other. It is the incredible power of storytelling that collapses the wall of several tags of identity, and brings together the strangers, who are stuck in one room due to natural disaster. Ironically the story takes place in a visa office that confirms one’s identity in terms of his/her nationality, race, ethnicity and similar others. It is a natural disaster that brings people from different origin closer to each other and it is the healing power of narrative/storytelling that dissolves all differences revealing what it means to be human.
Intuitisme et art brut dans la poésie d'Hedi Bouraoui
Authors: Grossman Simone 
Published: September 2021

Les écrits poétiques de Hédi Bouraoui, poète canadien d’origine tunisienne, où sont insérés des images picturales d'art brut, participent de l'intuitisme, expression artistique qui « invite au dialogue, à la conversation permanente entre les différentes cultures, à l’échange, à la création d’un espace pluriartistique dans lequel tous les arts s’expriment sans frontières »(Éric Sivry, 2003). Notre propos examinera la convergence entre la poésie de Bouraoui, l'intuitisme et l'art brut, la conception de l'intuition de Bouraoui coïncidant avec la « pure et authentique impulsion créative » d'où s'origine l'art selon Jean Dubuffet.

The poetic writings of Hédi Bouraoui, a Canadian poet of Tunisian origin, where pictorial images of Raw Art are inserted, are part of intuitivism, an artistic expression that "invites dialogue, permanent conversation between different cultures, exchange, creation of a multi-artistic space in which all arts express themselves without borders" (Eric Sivry, 2003). Our article will examine the convergence between Bouraoui's poetry, intuitivism and Raw Art, Bouraoui's conception of intuition coinciding with the "pure and authentic creative impulse" from which art, according to Jean Dubuffet, originated.
Book Reviews
Authors: Bump Vena Natalie , Dawson Paige , De Pree Thomas , Hitchner Sarah , Holmes George , Kottai Sudarshan R , Murphy Daniel J , Paulson Susan , Ramenzoni Victoria C. , Smythe Kathleen 
Published: September 2021

Langston, Nancy. 2017. Sustaining Lake Superior: An Extraordinary Lake in a Changing World. New Haven, CT: Yale University Press. 292 pp. ISBN 978-0-300-21298-3.Moore, Margaret. 2019. Who Should Own Natural Resources? Cambridge, MA: Polity Press. 140 pp. ISBN 978-1-509-52916-2.Middleton Manning, Beth Rose. 2018. Upstream: Trust Lands and Power on the Feather River. Tucson: University of Arizona Press. 244 pp. ISBN 978-0-8165-3514-9.Van de Graaf, Thijs, and Benjamin K. Sovacool. 2020. Global Energy Politics. Cambridge: Polity Press. ISBN 978-1-5095-3048-9.Wapner, Paul. 2020. Is Wildness Over? Cambridge, MA: Polity Press. ISBN 978-1-5095-3212-4.DeSombre, Elizabeth R. 2020. What Is Environmental Politics? Cambridge: Polity Press. 202 pp. ISBN 978-1-5095-3413-5.Ptáčková, Jarmila. 2020. Exile from Grasslands: Tibetan Herders and Chinese Development Projects. Seattle: University of Washington Press. ISBN: 9 78-0-295-74819-1.Liegey, Vincent, and Anitra Nelson. 2020. Exploring Degrowth: A Critical Guide. London: Pluto Press. 224 pp. ISBN 978-0-7453-4201-6.Behringer, Wolfgang. 2019. Tambora and the Year without a Summer: How a Volcano Plunged the World into Crisis. Medford, MA: Polity Press. 334 pp. ISBN 978-1-509-52549-2.Duvall, Chris S. 2019. The African Roots of Marijuana. Durham, NC: Duke University Press. 351 pp. ISBN 978-1-4780-0394-6.
HEALTH EDUCATION TERHADAP PENGETAHUAN IBU HAMIL TENTANG TERAPI SITZ BATH DI WILAYAH KERJA PUSKESMAS BALONG KABUPATEN PONOROGO
Authors: Mustikawati Ambika Kurnia 
Published: September 2021

Haemorrhoids are common in pregnant women in the second or third trimester of pregnancy. Increased intra-pressure due to fetal growth and changes in the hormone progesterone causes the hemorrhoidal veins to become wide. Pregnancy hemorrhoids are temporary hemorrhoids which means they will disappear some time after delivery, but can cause a very uncomfortable feeling, itching around the anus and even bleeding during bowel movements. Therefore, self care is needed, one of them is the sitz bath method.
The design in this study is a pre-experiment with the One Group Pretest-Posttest design approach. The population in this study were all mothers with hemorrhoids who participated in the pregnant class at Balong Health Center for the period of 1-28 February 2020, a total of 37 people. The sampling method used accidental sampling of 31 people. Instrument with quesioner Statistical test using the Wilcoxon Signed-Rank Test through the SPSS program with α = 0.05.
The result of knowledge of mothers about Sitz Bath Therapy in the Work Area of ​​Puskesmas Balong, Ponorogo Regency, before health education was carried out, most of them were 16 respondents (51.6%) had sufficient knowledge and after health education was carried out most of them 18 respondents (58.1%) had good knowledge. There is an effect of health education on maternal knowledge about Sitz Bath Therapy in the working area of ​​ Health Center Balong, Ponorogo with a p value of 0.000 ≤ α 0.05.
The role of health workers as educators is better to carry out routine health education during the provision of care, especially regarding the method of sitz bath therapy so that targets can better understand and be able to overcome hemorrhoid problems that occur in pregnancy.
Strategy for Foreign Students’ Professional and Language Competence Development
Authors: Ionkina E. S. , Kharlamov O. S. 
Published: September 2021

The authors propose a model of pre-master foreign students’ training, based on the formation of professional and language competence of foreign pre-master students during their studies at pre-university courses, and also consider pedagogical technologies of its implementation. Entering the pre-university courses, pre-graduate students have some skills in self-directed scientific research, but they cannot write in a non-native language, read professional literature, create their own scientific text and formalize a statement and present it. The authors propose a specific learning strategy that helps pre-graduate students to acquire oral and written language skills, produce a full monological scientific statement in Russian, get the initial skills in academic writing.Pre-Master’s training of foreign students is characterized by an individual approach to future undergraduates. Developing the strategy aimed at the achievement of the professional and language competences by foreign pre-graduates, the authors implement various learning methods, such as a personality-oriented method, grammar-translation method, communicative method of teaching and a project method. The article sums up the initial monitoring results of the program implementation at pre-university courses of Volgograd State Technical University and formulates the proposals for its further development. Strategic planning of teaching Russian in this direction allows us to rely on the fact that a foreign scientist would be able to solve specific communicative tasks in a non-native language in an academic and professional environment.