bluuebunny/crossref_metadata_2025 huggingface dataset:
SIGNS OF DISEASES OF THE GASTROINTESTINAL TRACT IN THE ORAL CAVITY OF CHILDREN
Authors: Maksymenko A.I.
Published: June 2021

The question of combined lesions of the oral cavity and internal organs occupy a prominent place among the problems of dentistry nowadays. They allow to reflect the genesis of many diseases that manifest themselves in the oral cavity.

Aim of the study was to analyze information on the relationship of diseases of oral cavity and various diseases of gastrointestinal tract.

Anatomical and physiological proximity, common innervation and humoral regulation leads to the involvement of organs of oral cavity in the pathological process. Catarrhal gingivitis, stomatitis are often caused by deficiency of vitamins of group B. Above-mentioned deficiency is caused, according to many scientists, by the diseases of gastrointestinal tract. And such diseases of the oral cavity as chronic recurrent stomatitis, lichen planus, chronic recurrent herpetic stomatitis, chronic periodontitis depends on the pathology of the digestive tract.

Conclusions. Thus, anatomical and physiological characteristics of children, who suffers from chronic gastrointestinal diseases, make us study the clinical manifestations of dental diseases in these patients.

Prospects for further research. Further study of the dental status of children with diseases of the gastrointestinal tract is very valuable.
Afgan Göçmen Profili Üzerine Bir Araştırma: Trabzon Örneği
Authors: ÖZGÜN Cengiz
Published: June 2021

Çatışmalar, şiddet ve göçlerle dolu 40 yılı geride bırakan Afganistan, dünyada Suriye’den sonra en fazla sığınmacı veren ikinci ülkedir. BMMYK verilerine göre 2019 yılı itibariyle yaklaşık 2,6 milyon kişi ülke içinde yaşadığı yeri değiştirmek durumunda kalmışken, 2,7 milyon kişi de ülkesini terk etmeye zorlanmıştır. Avrupa’ya göç rotası üzerinde bulunan Türkiye de Afgan göçmenlerin ilgi odağı olmaya devam etmektedir.
Afgan göçmenler bağlamında göç alan bir konumda olan Trabzon, son yıllarda giderek artan bir Afgan nüfusa ev sahipliği yapmaktadır. Trabzon İl Göç İdaresi’ne resmi olarak kayıtlı Afganların sayısı yaklaşık 4000’dir. Ancak kayıt dışı Afganlarla birlikte bu sayının daha fazla olduğu tahmin edilmektedir.
Bu çalışma aracılığıyla, Trabzon’da bulunan Afgan göçmenlerin demografik profilinin elde edilmesi; göçmenlerin yolculukları sırası ve sonrasındaki travmatik hikayelerinin öğrenilmesi; göçmenlerin istihdam durumlarının tespit edilmesi; Afgan göçmenlerin Trabzon'da yerli nüfus ile sosyal içerilme ve dışlanmaya yönelik algılarının tespiti; eğitim durumlarının ve Türkçe bilgilerinin tespiti; sağlık durumlarının belirlenmesi; çocuklarının eğitim sorunlarının tespit edilmesi ve geleceğe ilişkin düşüncelerinin öğrenilmesi planlanmıştır.
CREATIVITY OF THE KRASNOYARSK DOCUMENTARY FILMMAKER I. ZAITSEVA AS A PHENOMENON OF REGIONAL AND NATIONAL CULTURE
Authors:   Siberian Federal University, Kostrykina N.V.
Published: June 2021

The article describes the work of Irina Borisovna Zaitseva, a world-famous Krasnoyarsk documentary film director, a member of the Board of the Union of Cinematographers and the Association of Documentary Films of the Russian Federation, whose film productions have not yet been the subject of film studies. Her films have won numerous prizes at prestigious All-Russian and international film festivals ("Russia", "Golden Knight", "Living Water", "Flahertiana", "Stalker", "Saratov Suffering", "Mediawave", "Documenta Madrid", "Docupolis", etc.). A number of documentary films reflect the history of not only the Krasnoyarsk Territory, but also Russia. Some films have a parable discourse and carry a moral and philosophical context. The director repeatedly addresses the topic of "fathers and children". I. Zaitseva makes high demands on the profession of a film director, relying in her work on the director's code of honor, so as not to harm the heroes of her documentaries. As a result of the analysis of the film "Martyrs and Confessors" and a brief review of other films directed by I. Zaitseva, a wide range of artistic techniques was identified: subjective video camera, vertical and parallel editing, historical reconstruction, "story within a story", changing focalizations and temporality, allegory, and others. All the author's means of the film language work for a strong drama, which distinguishes the films of the documentarian. In her work, there is a hybrid-a combination of factuality and artistry, which does not mean devaluing the principle of documentality. The Krasnoyarsk documentary filmmaker was one of the first in Russia to make a film about the tragic fate of the clergy who died at the hands of representatives of the Soviet government in the period 1918–1938. I. Zaitseva's filmography is a phenomenon of regional and national culture.
SOVIET SERVICE AT THE EARLY 1960S — EARLY 1990S: HISTORIOGRAPHY OF THE ISSUE
Authors:   Siberian Federal University, Kretsu O.G.
Published: June 2021

Nowdays historical science is increasingly referring to problems that have not previously come to the attention of authors. At the same time, researchers in their works try to rely on interdisciplinary methodological practices that have come to us relatively recently (micro- and macrohistorical analyzes, mathematical research methods, the study of the history of everyday life, mentality, etc.). Among the issues that are currently receiving the attention of representatives of the humanitarian fields of knowledge, we can single out the topic of service and of a person who was in these realities. Therefore, in the article have been made analyze of the historiography of the topic of Soviet service in the period from the early 1960s to the early 1990s. We have studied the works of both domestic and foreign authors. They paid special attention to such aspects as the culture of serving the population in the realities of the transition to a "consumer" society, the role of the individual and the collective in these conditions, the emergence of new forms of service, the economy of the service sector, the formation of a mental differnces between the service sector and the household service, etc. etc. Much more often, authors began to address the local aspect of the topic. In addition to the above, it can be concluded that the researchers paid special attention to areas such as utilities, restaurants and hotels, but the least covered was the issue of hairdressing. This conclusion can serve as a basis for the development of new topics in the regional context of Krasnoyarsk and Krasnoyarsk Region.
REFRACTIONS OF THE IMPERIAL COMPLEX IN THE IDENTITY OF THE IMPERIAL PEOPLE (“CEMENT PEOPLE” WHO SETTLING THE "TAKEN REGION" OR THE “RUSSIAN-SPEAKING POPULATION” WITH INTERETHNIC MARRIAGES)
Authors:   Sociological Institute, Federal Center of Theoretical and Applied Sociology, Russian Academy of Sciences, St. Petersburg, Lourié S.V.
Published: June 2021

The article examines the phenomenon of the imperial people, which has some special qualities that allow it to integrate peoples and territories. Many researchers of the empire recognize the importance of the imperial people factor, but it is quite difficult to indicate its specific characteristics. It is concluded that the Russians, having moved to the outskirts of the empire, to some extent changed their behavior patterns and became what is sometimes called “other Russians”. They differ from the Russians from the indigenous territories and have the qualities of a “cement people” that holds together parts of the empire. The Russians identity turned out to be duplex. They are predominantly occupied with themselves in their autochthonous territories as one of the peoples of the Earth and can perceive themselves as an ethnic whole. But they absorb the contradictions between peoples on the outskirts of the empire and create a kind of new — imperial — integrity. Then they have not have only a special Russian national identity, but rather a messianic one, coupled with an imperial function. Russians as an imperial people understand themselves (and others too) as bricks of a single empire. We aim to cover this topic in this article we rely on data from sources about the Russian peasant colonization of the late 19th — early 20th centuries. We also use the statistics of interethnic marriages in the USSR, which were an important factor in the homogenization of the peoples of the Soviet empire.
DOCUMENTARY EVIDENCE OF HISTORY OF ECONOMIC RELATIONSHIPS BETWEEN THE WHITE SEA MONASTERIES AND PEASANT COMMUNITIES AT THE TURN OF THE 19TH/20TH CENTURY
Authors:   Northern Arctic Federal University, Kenozero National Park (Arkhangelsk, Russia), Kharitonova Y.E.
Published: June 2021

The article examines the history of economic relationships between Orthodox monasteries on the White Sea coast and peasant communities at the turn of the 19th/20th century. The White Sea monasteries are combined into a single group by researchers due to their geographic location and development of particular historical trends and activities as a result. The study is based on documents from regional archives related to records management, economic and administrative activities, as well as oral historical sources. The attempt is made to explore characteristics of the White Sea monasteries’ economic impact on the Pomor settlements historically linked to them. The research methodology is based on the historical and anthropological concept. Its problematic field highlights the process of interaction between the White Sea monasteries and peasant communities over the period in question, facilitating the identification of positive mutual influence and problems arising in the course of bilateral activities. Critical and comparative analysis of sources as well as source studies synthesis are applied as methods to analyze documents in a comprehensive way. The research novelty is attributable to previous insufficient information about economic interaction between the White Sea monasteries and Pomor communities over the period in question. Joint economic activities of the monasteries and peasant communities were useful for local population and contributed to resolution to certain social and economic matters. The Pomors developed trades, demanded by the needs of monasteries’ economic activity, such as carrier services, pearling, spinning, seasonal work. Joint activities led to the emerging of effective arrangements, qualified personnel, that served as a social stabilizer and united economic efforts of the Church as represented by the White Sea monasteries and the state as represented by peasant communities.
SCIENTIFIC MODELING OF THE TRANSFORMATION OF VALUES OF THE POPULATION IN THE REGIONS OF THE SIBERIAN FEDERAL DISTRICT (1990S — EARLY 2020)
Authors:   Siberian Federal University, Khrebtov M.Y. , Filko A.I. ,   Siberian Federal University
Published: June 2021

The article presents the main results of the analysis, interpretation and discussion of the conducted field research, the data for which were obtained after an online survey of residents of the regions of the Siberian Federal District. The respondents of this sociological survey were residents of the regions of the Siberian Federal District in the amount of 504 people. The article is based on a survey, which is associated with the value issues of residents of Siberian regions. The survey touched upon the main tendencies and spheres of value formation in Russian society, which are typical for the population of this district as a whole. With the help of these data, the values of the population of the regions of the Siberian Federal District were analyzed according to the parameters of the place of residence, gender and age. The results of this questionnaire and an ap-peal to the research of values that scientists carried out in previous years, made it possible to model the processes of axiological dynamics of the population of the Siberian Federal District in the post-Soviet period. Also, the basis of this modeling is the effectiveness of numerous analog projects, both Russian and foreign. For this, the research works of scientists of the 1990s, 2000s, 2010s were considered. Based on the above, value changes are determined and the dynamics of values for the population of the Siberian Federal District is highlighted.
THE BIRTH AND FORMATION OF A PERSONNEL POLICY TOWARDS MANAGERS IN THE USSR IN THE 1920S
Authors:   Siberian Federal University, Elteko Y.V.
Published: June 2021

During the formation of the new mechanism of power and management, the selection and registration of personnel was one of the most important problems of the young state. After all, the possession of the power in the state by the party depended on who held managerial positions. Therefore, in the 1920s. in the USSR, the task of personnel policy was to create a new professional layer of managers ready to replace old specialists. Thus, the article examined the emerging mechanisms of the Soviet personnel policy in relation to managers: accounting and distribution of personnel, party education as a method of training managers, the requirements for responsible workers. The materials for the article were archival sources of the State Archives of the Krasnoyarsk Territory, including: legal acts, instructions, statistics. As a result of the study, it was possible to trace how the nomenclature management system was formed, which served the entire Soviet period. This system provided party control over all areas of the state. At the same time, the educational and business characteristics of the appointed managers did not play a major role in their selection, especially at the initial stage of the formation of the state. The decisive qualities of the new layer of the party-administrative elite when they were appointed to the office were ideological reliability and unquestioning obedience to party decisions.
MOSCOW — HARBIN: THE LIFE ODYSSEY OF THE WHITE EMIGRANT NIKOLAI GALKIN (1895–1940)
Authors:   Novosibirsk State University, Bodrova L.A. , Petin D.I. ,   Omsk State Technical University
Published: June 2021

This publication is an analytical review of the ambiguous and complex fate of Nikolai Gavriilovich Galkin, the son of a hereditary nobleman who became a career army officer who took an active part in the First World War and the Civil War, who consistently served in the Russian (imperial) army, and then anti-Bolshevik armed formations in the Russian Far East. The second half of the life of the captain N. G. Galkin was associated with living in China, where the hero of the publication emigrated for political and personal reasons. The aim of our research is to represent, in the context of military anthropology, the forms of adaptation of the «little man» to the conditions of social cataclysms. The methodological concept of the study, based on its genre characteristics, is based on the combined use of the anthropological approach, the theory of social mobility and the biographical method. The basis for the preparation of the article was a complex of previously unpublished sources from the funds of the State Archive of the Russian Federation, the Russian State Historical Archive, the Russian State Military Historical Archive, the Russian State Historical Archive of the Far East, the State Archive of the Republic of Tatarstan, the State Archive of the Khabarovsk Territory, the archive of the Federal Security Service of Russia in the Novosibirsk Region. Some of these sources were previously in secret storage. Photos and oral history (family information about the hero of the article) have an auxiliary role in the study. In conclusion, the authors emphasize that a conservative upbringing and worldview would not have allowed N.G. Galkin, who had persistent anti-Bolshevik convictions, to find himself in the conditions of Soviet society, and therefore, being in exile was for him the only way out in the conditions of the end of the Civil War and defeat anti- Soviet forces. The work is addressed to a wide range of readers, including specialists in the history of the Russian (imperial) army, the First World War and the Civil War, the White movement, the Harbin emigration, mass political repressions in the USSR in the post-war period.
Basic components of glutathion system in rat erythrocytes under conditions of toxic damage on the background of an alimental protein lack
Authors: Kopylchuk Halyna , Nykolaichuk Ivanna
Published: June 2021

The article is devoted to the study of the main components of the glutathione system under conditions of toxic damage against the background of nutritional protein deficiency: the content of reduced and oxidized glutathione with the determination of the GSH/GSSG ratio, the activity of glutathione-dependent enzymes – glutathione peroxidase, glutathione transferase, glutathione reductase, and glucose-6-phosphate dehydrogenase. The concentration of reduced glutathione in the erythrocyte hemolysate was studied using Elman's reagent after deproteinization of the samples. Glutathione transferase activity was determined by the rate of formation of glutathione S conjugates by reacting reduced glutathione with a substrate of 1-chloro-2.4-dinitrobenzene. Glutathione peroxidase activity was evaluated by the formation of oxidized glutathione. The activity of glutathione reductase in erythrocytes was determined by the method, is based on measuring the oxidation rate of NADPH+H+, which is recorded by decreasing absorption at a wavelength of 340 nm. A decrease in the ratio of GSH/GSSG in rat erythrocytes under conditions of toxic damage against a nutritional deficiency of protein is indicated by a functional shift in the thiol-disulfide balance towards increased use of the reduced form of glutathione for antioxidant protection. It was established that toxic damage is a key factor in reducing the level of glutathione transferase against the background of an increase in glutathione peroxidase activity in rat erythrocytes, the activation of which probably prevents the progression of LPO processes. At the same time, under conditions of toxic damage, against the background of alimentary protein deficiency, a decrease in glutathione reductase and glucose-6-phosphate dehydrogenase activity is observed, which leads to blocking of the first stage of glucose-6-phosphate metabolism in the pentose phosphate cycle, resulting in a decrease in the amount of NADPH and, accordingly reduced glutathione.
ANALISIS PARTISIPASI WARGA MISKIN DALAM PERUMUSAN PERENCANAAN PEMBANGUNAN NAGARI DI NAGARI TANJUANG ALAM DAN NAGARI SUMANIK KABUPATEN TANAH DATAR TAHUN 2018
Authors: Ashadi Ari , Afrizal Afrizal , Khairati Rusda
Published: June 2021

Penelitian ini dilatar belakangi amanat Undang-Undang Nomor 25 tahun 2004 tentang Sistem Perencanaan Pembangunan Nasional (SPPN) dan Undang-Undang Nomor 6 Tahun 2014 tentang Desa yang mengamanatkan perlunya partisipasi masyarakat dalam perencanaan pembangunan termasuk partisipasi warga miskin. Penelitian bertujuan untuk mendeskripsikan ruang lingkup dan kedalaman partisipasi orang miskin dalam pembangunan nagari serta menganalisis proses penyelenggaraan perencanaan pembangunan nagari dalam pelibatan multistakeholder di Nagari Tanjuang Alam dan Nagari Sumanik Kabupaten Tanah Datar. Penelitian menggunakan metode penelitian kualitatif, dimana data primer yang bersumber dari responden menjadi data pokok untuk menjawab permasalahan yang dipertanyakan pada penelitian ini. Pengumpulan data dilakukan melalui wawancara mendalam terhadap informan kunci serta warga miskin di Nagari Tanjuang Alam dan Nagari Sumanik. Hasil penelitian menunjukkan bahwa ruang lingkup partisipasi masyarakat miskin dan proses penyelenggaraan perencanaan pembangunan nagari dalam pelibatan multistakeholder dalam perumusan perencanaan pembangunan nagari baik di Nagari Tanjuang Alam maupun di Nagari Sumanik telah sesuai dengan Permendagri 114 tahun 2014 tentang Pedoman Pembangunan Desa. Untuk kedalaman partisipasi orang miskin dari 9 (Sembilan) indikator terdapat 2 (dua) perbedaan antara nagari Tanjuang Alam dan Nagari Sumanik yaitu dilihat dari sisi cara keterlibatan warga miskin dan tingkat efektifitas partisipasi.

Kata Kunci: partisipasi, perencanaan, kemiskinan
Implementasi Algoritma Complement dan Multinomial Naïve Bayes Classifier Pada Klasifikasi Kategori Berita Media Online
Authors: Randhika Muhammad Naufal , Young Julio Christian , Suryadibrata Alethea , Mandala Hadian
Published: June 2021

Perkembangan teknologi dan penyebaran informasi di internet terus mengalami peningkatan. Salah satu bentuk informasi yang jumlahnya terus bertambah adalah berita. Media cetak dan elektronik yang kini telah dikemas dalam bentuk digital atau sering dikenal dengan portal berita online atau media online. PT Merah Putih Media merupakan media berita online. Berita yang disampaikan terdiri dari tiga kategori mulai dari berita tentang Indonesia, Hiburan dan Gaya Hidup, serta Olahraga. Namun, pembagian artikel berita ke dalam kategori dilakukan secara manual oleh kepala redaksi jurnalis. Text Mining adalah salah satu teknik yang dapat digunakan untuk melakukan klasifikasi sebuah dokumen. Pada penelitian ini dilakukan klasifikasi kategori otomatis dengan algoritma Multinomial Naïve Bayes, Complement Naïve Bayes, dan gabungan kedua model. Model yang memiliki performa terbaik dinilai dari metrik F1-Score dengan jumlah pembagian data latih dan data uji sebanyak 80:20, diperoleh keberhasilan performa sebesar 90,13% F1-Score.
Changes in social capital of rice farmers: An antropological study for buginese farmers
Authors: Pawalluri Thamrin , Salman Darmawan , Fahmid Imam Mujahidin , Marmin Hidayat , Amir Arfenti , Enre Amruddin Ambo
Published: June 2021

Local institutions that encourage self-organization to achieve shared-goals is a characteristic of social capital. In Bugis society, there is a social capital in farming communities called tudang sipulung, meaning “sitting together for deciding various matters related to farming”. However, tudang sipulung has been transformed. This study aims to determine causes, processes, and consequences of social change in tudang sipulung tradition. The data from this case study were collected by using in-depth interviews, observations, and document review. The results show that the cause of change was an abandonment of traditional rituals in farming because farmers consider that such rituals delay activities and require more cost, so to reduce the effectiveness and efficiency. In addition, there is also a shift in the position of actors, where the schedule of the planting which was previously determined by indigenous knowledge possessed by traditional leaders, changed to the role of climatologists and officers from the government. The process of social change takes long and slow along with the social dynamics of the rice farming community which makes tudang sipulung tradition as a place to work together to achieve shared-goal for farmers. Nevertheless, the process of social change has consequences for the elimination of kindness to each other and lack of trust among farmers.
Crack growth simulation in heterogeneous material by S-FEM and comparison with experiments
Authors: Masanori Kikuchi  , Yoshitaka Wada  , Yulong Li
Published: June 2021

Fully automatic fatigue crack growth simulation system is developed using S-version FEM (SFEM). This system is extended to fracture in heterogeneous material. In the heterogeneous material, crack tip stress field becomes mixed mode condition, and crack growth path is affected by inhomogeneous materials and mixed mode conditions. Stress Intensity Factors (SIF) in mixed mode condition are evaluated using Virtual Crack Closure Method (VCCM). Criteria for crack growth amount and crack growth path are used based on these SIFs, and growing crack configurations are obtained. Three crack growth problems are simulated. One is crack growth in bi-materila made of CFRP plate and Aluminum alloy. Initial crack is located in CFRP plate, and grows toward Aluminum alloy. Crack growing direction changes and results are compared with experimental one. Second problem is crack growth in bimaterial made of PMMA and Aluminum alloy. Initial crack is located in PMMA plate and parallel to phase boundary. By cahnging loading conditions, several cases are simulated and compared with experimental ones. In the experiment, crack grows into pahse boundary and grow along it. This case is simulated precisely, and the effect of pahse boundary is discussed. Last case is Stress Corrosion Cracking (SCC) at Hot-Leg Safe-End of Pressurized Water Rreactor. This location is made of many kinds of steels by welding. In some steel, SCC does not occur and in other steel, SCC is accelerated. As a result, small surface crack grows in complicated manner.
Improvement of adhesion performance of mortar-repair interface with inducing crack path into repair
Authors: A. Satoh  , K. Yamada  , M. Satoh
Published: June 2021

The most important performance for repair materials is adhesion to the substrate. The authors experimentally find out that high modulus fine aggregates in repair material enhance strength of it as well as the strength of the interface repaired with it, compared to the ordinary repair without fine aggregates. This paper elaborates the mechanisms for that with fractographic observation and FEM analysis based on the results of experiment. Also the authors discuss the ways for enhancing the strength and ductility of the repaired mortar.
Growth behavior of fatigue cracks in ultrafine grained Cu smooth specimens with a small hole
Authors: Masahiro Goto  , Kakeru Morita  , Junichi Kitamura  , Takaei Yamamoto  , Masataka Baba  , Seung-zeon Han  , Sangshik Kim
Published: June 2021

In order to study the growth mechanism of fatigue cracks in ultrafine grained copper, stresscontrolled fatigue tests of round-bar specimens with a small blind hole as a crack starter were conducted. The hole was drilled on the surface where an intersection between the shear plane of the final ECAP processing and the specimen surface makes an angle of 45° or 90° with respect to the loading axis. At a low stress ( ? a = 90 MPa), the direction of crack paths was nearly perpendicular to the loading direction regardless of the location of the hole. Profile of crack face was examined, showing the aspect ratio (b/a) of b/a = 0.82. At a high stress ( ? a = 240 MPa), although the growth directions inclined 45° and 90° to the loading-axis were observed depending on the location of the drilling hole, crack faces in these cracks were extended along one set of maximum shear stress planes, corresponding to the final ECAP shear plane. The value of aspect ratios was b/a = 0.38 and 1.10 for the cracks with 45° and 90° inclined path directions, respectively. The role of deformation mode at the crack tip areas on crack growth behavior were discussed in terms of the mixed-mode stress intensity factor. The crack path formation at high stress amplitudes was affected by the in-plane shear-mode deformation at the crack tip.
Combined lock-in thermography and heat flow measurements for analysing heat dissipation during fatigue crack propagation
Authors: J. Baer  , A. Vshivkov  , O. Plekhov
Published: June 2021

During fatigue crack propagation experiments with constant force as well as constant stress intensity lock in thermography and heat flow measurements with a new developed peltier sensor have been performed. With lock in thermography space resolved measurements are possible and the evaluation allows to distinguish between elastic and dissipated energies. The specimens have to be coated with black paint to enhance the emissivity. The thickness of the coating influences the results and therefore quantitative measurements are problematic. The heat flow measurements are easy to perform and provide quantitative results but only integral in an area given by the used peltier element. To get comparable results the values measured with thermography were summarized in an area equivalent to that of the peltier element. The experiments with constant force show a good agreement between the thermography and the heat flow measurements. In case of the experiments with a constant stress intensity some differences become visible. Whereas the thermography measurements show a linear decrease of the signal with rising crack length, the heat flow measurements show a clearly nonlinear dependency. Obviously the measured energies in thermography and peltier based heat flow measurement are not comparable.
Meso-mechanics simulation analysis of microwave-assisted mineral liberation
Authors: Qin Like  , Dai Jun  , Yuan Liqun
Published: June 2021

Microwave-assisted crushing and grinding can improve efficiency and reduce energy consumption. This paper takes rock grains with galena and calcite as the research object to establish a two-dimensional computational model through the finite difference software FLAC2D. It analyzes the process and law of mineral boundary failure under microwave irradiation, and assesses the effects of four factors, namely, microwave irradiation time, power density, mineral crystal size, and mineral content, on mineral boundary failure. Results indicate an optimal microwave irradiation period for the rapid failure of mineral boundary. Moreover, irradiation time and energy consumption can be reduced by increasing the microwave power density. However, irradiation time and energy consumption are basically unchanged when the microwave power density is above a certain threshold. Mineral content slightly affects the microwave irradiation time, whereas mineral crystal size significantly affects the microwave irradiation time. In addition, a larger-sized mineral crystal requires less irradiation time and energy consumption to reach the same failure rate. However, irradiation time and energy consumption slightly change when the crystal size is larger than a certain value.
Study of drilling muds on the anti-erosion property of a fluidic amplifier in directional drilling
Authors: Jiang-fu He  , Peng-yu Zhang  , Qi-lei Yin  , Kun Yin  , Hou-ping Liu
Published: June 2021

Due to some drawbacks of conventional drilling methods and drilling tools, the application of hydraulic hammers with a fluidic amplifier have been extensively popularized since its emergence in recent years. However, the performance life of a fluidic amplifier is still unsatisfactory in oil and gas wells drilling, especially the heavy wear or erosion of the fluidic amplifier leads to the reduction of service life time of hydraulic hammers, which is derived from the incision of drilling muds with high speed and pressure. In order to investigate the influence of drilling muds, such as particle size, solid content and jet velocity, on the antierosion property of a fluidic amplifier, several groups of drilling muds with different performance parameters have been utilized to numerical simulation on basis of Computational Fluid Dynamics (CFD). Simulation results have shown that the jet nozzle of fluidic amplifiers is primarily abraded, afterwards are the lateral plates and the wedge of the fluidic amplifier, which shows extraordinary agreement with the actual cases of fluidic amplifier in drilling process. It can be concluded that particle size, solid content and jet velocity have a great influence on the anti-erosion property of a fluidic amplifier, and the erosion rate linearly varies with the particle size of drilling muds, nevertheless exponentially varies with solid content and jet velocity of drilling muds. As to improve the service life time of a fluidic amplifier, the mud purification system or low solid clay-free mud system is suggested in the operation of directional well drilling.
S-N curve modeling method of Aluminum alloy welded joints based on the fatigue characteristics domain
Authors: Li Zou  , Xinhua Yang  , Jianrong Tan  , Yibo Sun
Published: June 2021

The scatter degree of the fatigue samples is reduced when the nodal force based structural method is used for steel welded joints, while it is still high for aluminum alloy welded joints. Statistical method and rough set theory is used to fatigue analysis so that fatigue characteristic domains are determined and S-N curves are fitted. Experiment results show that fatigue life of the aluminum alloy welded joints is under the influence of some key factors and the fatigue data with the same characteristics distribute in a relatively independent area. Accordingly, a novel S-N curve modeling method of aluminum alloy welded joints based on the fatigue characteristics domain is proposed. In the proposed method, the nodal force based structural stress method is used for stress calculation and neighborhood rough set theory is used for character extraction to obtain the key factors. Then fatigue characteristics domains are divided and S-N curves are fitted on each fatigue characteristics domain instead of on the whole domain so that a set of S-N curves are obtained. Statistical results show that selection of the S-N curve for the aluminum alloy welded joints according to different fatigue characteristic domain is more accurate.
Fatigue crack growth in 2017A-T4 alloy subjected to proportional bending with torsion
Authors: D. Rozumek  , S. Faszynka
Published: June 2021

The paper presents the results of tests on the fatigue crack growth for a constant moment amplitude under combined bending with torsion in the aluminium alloy AW-2017A-T4. The tests were performed under different values of the load ratio R. Plane specimens with stress concentrators in form of the external one-sided sharp notch were tested. A non-uniform fatigue cracks growth on both lateral surfaces of specimens was observed during experimental tests. Fatigue cracks were developing in the specimens in two stages; quarter-elliptic edge cracks were observed at the beginning, then evolving into through cracks.
Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model
Authors: P. J. Huffman  , J. Ferreira  , J.A.F.O. Correia  , A.M.P. De Jesus  , G. Lesiuk  , F. Berto  , A. Fernandez-Canteli  , G. Glinka
Published: June 2021

Fatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there has been efforts towards the use of the local stress-strain and similitude concepts to formulate fatigue crack growth rates. A new model has been developed which derives stress-life, strain-life and fatigue crack growth rates from strain energy density concepts. This new model has the advantage to predict an intrinsic stress ratio effect of the form ?ar=(?amp)?·(?max )(1-?), which is dependent on the cyclic stress-strain behaviour of the material. This new fatigue crack propagation model was proposed by Huffman based on Walkerlike strain-life relation. This model is applied to FCG data available for the P355NL1 pressure vessel steel. A comparison of the experimental results and the Huffman crack propagation model is made.
„Da ist mein Weg zu Ende.“ Elterliche Perspektiven auf schulische Platzierungen im Kontext von Inklusion und lokalem Bildungsraum
Authors: Hackbarth Anja , Stošić Patricia , Thönnes Lea
Published: June 2021

Der Beitrag stellt Auszüge empirischer Erkenntnisse eines Forschungsprojekts vor, das ausgehend von der Bedeutung lokaler Schulangebotsstrukturen im Kontext von Bildungsbeteiligung und ‚Inklusion‘ u. a. akteursspezifische Perspektivierungen bearbeitet. In Rekurs auf eine raumtheoretische Heuristik im Anschluss an Löw (2001) und auf die dokumentarische Methode (Nohl 2017) werden im Text zwei Interpretationen von Interviews mit Elternteilen eines Kindes mit zugeschriebenem sonderpädagogischen Förderbedarf vorgestellt. Diskutiert werden rekonstruktiv zugänglich gemachte elterliche Erfahrungsperspektiven auf Prozesse schulischer Platzierung, die als elterliche Bearbeitungsmodi einer Suche nach dem ‚richtigen Ort‘ im Kontext von Inklusion und lokalem Bildungsraum konzeptualisiert werden.
Enhancing the Students’ Learning Motivation by Using Instructional Media for Thailand’s Municipal School
Authors: Al Mardhiyyah Salma , Latief Mohammad Adnan , Masduqi Harits
Published: June 2021

In today’s era, the idea of conducting student exchanges and teaching practices overseas continues to grow. In this way, the cooperating countries can share their recent innovations in the field of education. The existence of a language barrier, however, may hinder learning and teaching in the classroom. Language barrier refers to the lack of a common language that prevents people from speaking to or understanding each other. It should be overcome as the information shared between teachers and students might be misinterpreted. This research was carried out as the researcher believed that the existing language barrier could be helped by increasing students’ motivation in the classroom. The aim of this study was to integrate the use of instructional media to enhance the students’ learning motivation of primary school in Thailand’s municipal school. This research used Classroom Action Research (CAR) design. The data was collected through the use of worksheets, still pictures, video recordings, interview guides, and field notes. The research results fulfilled the three criteria of success, namely classroom atmosphere, students’ learning motivation, and the strategy’s practicality. The researchers found that the use of instructional media could enhance students’ learning motivation and overcome the language barriers in the classroom.
Methods of accelerated restoration of productivity of degraded forage lands in the zone of unstable humidification of the Central Ciscaucasia
Authors: Grebennikov Vadim , Shipilov Ivan , Khonina Olesya
Published: June 2021

Abstract. The purpose of the research is to study is to establish the effectiveness of different methods of grassing old-aged degraded haylands with the participation of species of cereals and legumes recommended for agrophytocenoses of the zone of unstable moisture. The methodological basis of the approach to restoring the productivity of degraded haylands on saline leached chernozems was the improvement of their phytocenotic structure, based on the coenotic usefulness of the dominant species of legumes and grasses. Results. Highly plastic species of legumes and grasses have been identified, which allow forming productive haymaking on the site of degraded old-growth grass stand for 10 years of its use. The legume-cereal agrophytocenosis formed on the cenotic basis contributed to the production of energy-saturated feed (0.74–0.76 feed units per 1 kg of dry matter with a content of 14.6–15.8 % crude protein). The conducted studies of methods for improving the grass stand did not reveal a significant advantage of the amelioration over the simplificated improvement (accelerated grassing). With accelerated grassing with the use of disking with sowing of perennial grasses in the treated turf, the productivity of the grass stand was slightly lower compared to the amelioration, but due to the reduction of technological costs, this method is more economically justified compared to the traditional method of tillage. Scientific novelty. For the first time in the conditions of the zone of unstable humidification of the Central Ciscaucasia in a comparative aspect, two methods of improving degenerated low – productive the grass amelioration and simplificated improvement (accelerated grassing) against the background of the use of nitrogen-phosphorus fertilizers with the participation of dominant species of cereals and legumes of perennial grasses recommended for their introduction into the plant communities of this zone were studied.
Phonological Knowledge in 5-year-old Bilingual Turkish Qashqai-Persian Children and Fars Monolingual Children
Authors:   Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran., Ghorbani Ali
Published: June 2021

Background & Objectives: Phonological awareness is a part of metalinguistic knowledge that is significantly associated with a wide range of language skills and processes, including literacy, and reading and writing skills. The purpose of the present study was to investigate the phonological awareness skills in bilingual five years old Qashqai- Persian children with monolingual Persian speaking children. Methods: 15 bilingual and 15 monolingual children (10 girls and 5 boys) were selected from kindergartens in Firouzabad, Fars, in February and early March 2020 and evaluated by Auditory Test of Phonological Awareness Skills (ASHA-5) for 5-6 years old Persian speaking children. Results: The results implied that the mean total score (P=0.733), as well as the mean score of each component of phonological awareness skills, including syllable awareness (P=0.328), rhyme awareness (P=0.625), and phonemic awareness (P=0.946) in monolingual 5-year-old children, were higher than the Qashqai-Persian bilingual group, but the differences were not significant (P≥0.05). Conclusion: The findings of the present study demonstrated that phonological awareness skills in the Persian language are higher in monolingual children than in Qashqai-Persian bilingual children, but the differences were not significant. Therefore, paying more attention and increasing knowledge about this aspect of language in bilingual children can be more effective in planning for education, evaluation, and treatment of phonological disorders in this group of children, especially in pre-school ages.
Translation, Validity, and Reliability of the Persian Version of Aphasia Rapid Test for Acute Stroke
Authors:   Department of Speech Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran., Mousavi Seyyedeh Zohreh , Jafari Reyhaneh ,   Department of Communication Science and Disorders, Wayne State University, Detroit, USA., Maroufizadeh Saman ,   Department of Nursing, School of Nursing and Midwifery, Guilan University of Medical Sciences, Guilan, Iran., Shahramnia Mohammad Moez ,   Department of Speech Therapy, Rehabilitation Research Centre, Iran University of Medical Sciences, Tehran, Iran., Pourmohammadi Mahsa ,   Department of Speech Therapy, Rehabilitation Research Centre, Iran University of Medical Sciences, Tehran, Iran., Jalilehvand Nahid ,   Department of Communication Science and Disorders, Wayne State University, Detroit, USA.
Published: June 2021

Background & Objectives: Aphasia is an acquired language disorder that affects daily communication and quality of life. Early diagnosis and the treatment of aphasia are important. In this regard, one of the screening tests is the Aphasia Rapid Test (ART). This study aimed to investigate the validity and reliability of this test and extend the use of ART in the acute phase for patients with aphasia. Methods: The original version of ART was translated to Persian and 100 acute stroke patients were evaluated by ART. Besides, all the patients were assessed again after eight days by two independent raters to evaluate inter-rater reliability. Also, 70 patients were chosen to examine ART’s predictive ability; they were assessed using the Persian version of Western Aphasia Battery, after three months. Results: On day eight of the study, the Mean±SD ART was 11.26±2.03 for rater 1 and 11.44±2.04 for rater 2. Inter-rater reliability was good with the concordance correlation coefficient of 0.959 (95% CI: 0.939-0.972). Also, the Bland-Altman plot showed good agreement between raters without any significant trend/bias. Conclusion: The ART is a test that includes features, such as reproducibility, predictability, and inter-rater reliability. This test is short and can be used in the acute phase of aphasia in patients with stroke.
A Study on Constructivist Teaching Approach in Mathematics Class Room
Authors: Mohsina Banu Syeda Khaja , Mohd Mahmood Siddiqui
Published: June 2021

Constructivism is an epistemology, or a theory of Knowledge construction, a philosophy of learning, used to explain how people know what they know. Its promoters include Piaget, Vygotsky and later-day philosopher Glasersfeld. The constructivist philosophy has been adopted in teaching of mathematics by many enthusiastic teachers in many countries. Constructivist approach learning is an interaction between the learner and learning environment. During this interaction, prior knowledge is used as the basis to interpret and construct new understanding. In other words, learning occurs if a student can construct his/her knowledge and apply or generalize its meaning to new situations, the constructivist approach opens new opportunities for learners as well as challenges for the teachers trying to implement it. In a learner centred situation, the constructivist teacher becomes one of many resources a student may learn from, and not the primary source of information, the teacher act as a facilitator, co-learner, democratic leader and a diagnostician. Researches have established that constructivist teaching approach in mathematics have been much more successful than the traditional methods. In the present paper the author has identified some of the most important reasons for lack of success of constructivist strategy, especially in developing countries.
Kampanye sebagai Komunikasi Politik: Esensi dan Strategi dalam Pemilu
Authors:   Pascasarjana Ilmu Politik - Universitas Diponegor, Fatimah Siti
Published: June 2021

In a state with democratic system, political campaign tremendously becomes essential for introducing a candidate to the society. Political campaign is understood as an organised attempt trying to influence the decision making process in a particular group. Aiming at winning an election, every candidate has to consider some adequate strategies and plans. The strategies and plans are important because they determine the winning of the candidate in the election process. This paper examines the concept of campaign as a part of political communications. By explaining the concept of messages and strategies, this paper concludes that the success of a political campaign requires the planning and formation of a sufficient team to maximize the strategies.
KOBİ’lerin Endüstri 4.0 Hazırlık Süreci: Bir Meta-Sentez Çalışması
Authors: ÇALIŞ DUMAN Meral
Published: June 2021

Endüstri 4.0 veya Dördüncü Sanayi Devrimi bugün adını sıklıkla duyduğumuz, etki alanı oldukça kapsamlı, bir teknolojik devrimdir. Kelime olarak, bilgi ve iletişim teknolojilerin üretim alanında kullanılması anlamına gelmektedir. Endüstri 4.0, fiziksel sistemlerin, sanal ortama taşınarak, fiziksel dünya ile siber dünyanın entegrasyonun sağlanmasıdır. Endüstri 4.0, sosyal, ekonomik, kültürel ve teknolojik alanlarda önemli etkileri olmakla birlikte, tanımından da anlaşılacağı üzere, en büyük etkiyi sanayi ve üretim alanında yaratmıştır. Bu nedenle, üretim odaklı işletmelerin Endüstri 4.0 konseptine geçiş süreçleri öncelik taşımaktadır. Büyük ölçekli işletmelere nazaran KOBİ’lerin Endüstri 4.0’a geçişi, sermaye, nitelikli personel ve bilgi eksikliklerinden dolayı daha zordur. Ülkemiz işletmelerinin %1’i büyük ölçekli işletmelerden oluşmaktadır. Bunun yanı sıra, işletmelerin %99’unun KOBİ olduğu düşünüldüğünde, KOBİ’lerin Endüstri 4.0’a geçmeleri ve bunun için gerekli tedbirlerin alınması önem taşımaktadır. Türkiye ekonomisinin bel kemiğini oluşturan KOBİ’lerin Endüstri 4.0’a geçişi kritik düzeydedir. Bu konuda hem uygulamada hem de akademik konularda boşluk bulunmaktadır. Bu araştırmada, bu boşluğu doldurmak amacıyla Endüstri 4.0 ve KOBİ’ler konusunda ilgili literatür incelenmiş ve bir meta-sentez çalışma yapılmıştır. KOBİ’ler için yol haritaları ve Endüstri 4.0 geçiş modelleri üzerine incelemeler ortaya konmuştur. Bu bağlamda Endüstri 4.0’ geçiş sürecinde KOBİ’lerin planlamaları ve süreçten elde edecekleri faydalar karşılaştırmalı olarak ele alınmıştır.