bluuebunny/crossref_metadata_2025 huggingface dataset:
KONTEKS BUDAYA MOTIF BINATANG PADA SENI CADAS PRASEJARAH MISOOL, RAJA AMPAT, PAPUA BARAT
Authors: Pasaribu Yosua Adrian , Rahim Muhamad Oksy , Latief Feri
Published: June 2020

Abstract. Cultural Context of Animals Motif in Misool Prehistoric Rock Art, Raja Ampat, Papua Barat. The Misool Islands Region in Raja Ampat, West Papua has a variety of prehistoric rock art finding consisting of hand stencil motifs, animals, dots, anthropomorphic, stone adzes, boomerang stencils, unidentified stencils, and non-figurative. Animal motifs include dolphins, marine fishes, birds, and lizards are depicted in 22 of 40 sites in rock art body. The study of the cultural context of rock art motifs in the Misool area is interesting to do because of the diversity of animal motifs. Other motifs such as hand stencils, dots, anthropomorphic, stone adzes, and boomerang stencils which may have another cultural meaning require a separate discussion. This study uses quantitative methods with 87 animal paintings data which consist of 10 motifs in 22 sites in East Misool and South Misool Region, Raja Ampat, West Papua. The result study places the depiction of animal motifs in prehistoric rock art in Misool in the secular cultural context or daily life.
 
Abstrak. Kawasan Kepulauan Misool di Raja Ampat, Papua Barat, memiliki berbagai macam temuan seni cadas prasejarah yang terdiri atas motif cap tangan, binatang, bulatan, antropomorfis, beliung persegi, stensil bumerang, stensil tidak teridentifikasi, dan nonfiguratif. Seni cadas motif binatang, antara lain lumba-lumba, ikan-ikan laut, burung, dan kadal digambarkan pada 22 dari total 40 situs seni cadas di kawasan tersebut. Kajian terhadap konteks budaya seni cadas motif binatang di Kawasan Misool menarik untuk dilakukan karena beragamnya motif binatang tersebut. Motif lain, seperti motif gambar tangan, bulatan, antropomorfis, beliung persegi, dan stensil bumerang, yang mungkin memiliki makna berbeda dalam konteks budaya memerlukan kajian tersendiri. Kajian ini menggunakan metode kuantitatif terhadap data berupa 87 gambar binatang yang terdiri atas 10 motif pada 22 situs di Kawasan Misool Timur dan Misool Selatan, Raja Ampat, Papua Barat. Hasil kajian menempatkan penggambaran motif binatang di kawasan seni cadas prasejarah Misool pada konteks budaya sekuler atau kehidupan sehari-hari.
Pneumonectomy in the treatment of tuberculosis relapse in a previously resected lung
Authors: Giller D. B. , Glotov A. A. , Kesaev O. Sh. , Glotov E. M. , Imagogev Ya. G. , Koroev V. V. , Shcherbakova G. V. , Khvalin E. I.
Published: June 2020

THE OBJECTIVE of our study was to increase the efficiency of treatment of tuberculosis postoperative reactivations in a previously operated lung, by clarifying the medical indications, improving surgical techniques and tactics when removing a previously resected lung.

METHODS AND MATERIALS. We analyzed the results of treatment of 220 patients who, in the 2004–2017 timeframe in our institution, had pneumonectomies (76 cases) and pleuropneumonectomies (144 cases) for tuberculosis relapse in a previously operated lung. For more objective planning of surgical treatment and evaluation of its results, we identified three degrees of treatment radicalism: radical, conditionally radical, and palliative.

RESULTS. 32 patients, who had carried a radical surgery, were diagnosed as having a complete clinical effect at the time of discharge (absence of destruction cavities in a single lung, bacterial excretion and illiquid complications) in 100 % of cases; in the group of patients operated conditionally radical, there were diagnosed 161 out of 168 (95.8 %) and in the group of patients operated palliative, there were distinguished only 3 cases out of 20 (15.0 %).

CONCLUSION. The implementation of the completion pneumonectomy and pleurapneumonectomy is accompanied by high technical complexity and more frequent development of intraoperative and postoperative complications. At the same time, the high efficiency of treatment of tuberculosis relapses in a previously operated lung can be achieved using the recommended tactics and techniques of surgical treatment when performing radical and conditionally radical interventions.
Treatment and prevention of the recurrence of liver echinococcosis
Authors: Mejidov R. T. , Sultanova R. S.
Published: June 2020

The OBJECTIVE was to make the comparative assessment of surgical methods for the treatment and prevention of the recurrence of echinococcal liver disease, as well as to study negative and positive aspects of closed echinococcectomy in relation to recurrent efficacy.

METHODS AND MATERIAL. 1072 cases (1358 cysts) of echinococcal liver disease were subjected to a retrospective analysis. The clinic performed radical (closed) echinococcectomy using high-tech resection devices on 258 patients, including ultrasound dissectors and destructors-aspirators for 105 patients (main group), other resection devices (LigaSure, an argon plasma scalpel) for patients (control group).

RESULTS. Inpatient treatment of patients in the main group amounted to (9.4±2.1) days, in the control group – (11.6±1.7). Postoperative complications in the main group were observed at 4.6 % of patients, in the control group – 11.0 %. Relapse of the liver echinococcosis in the control group occurred in 2.3 % of cases, there were no relapses in the main group. The quality of life of patients in the main group was (73.5±1.8) points, in the control group – (72, 8±1.7) points. There were no lethal outcomes in both groups of patients.

CONCLUSION. The most effective in the treatment and prevention of recurrence of echinococcal liver disease are closed methods of echinococcectomy: a cyst pericystectomy, liver resection. When we use ultrasound resection techniques for closed (radical) surgical interventions, intra- and postoperative complications are reduced and the immediate and long-term results of patients with liver echinococcosis are improved.
Combined laparoscopic intervention for compression syndrome of the celiac trunk and hiatal hernia
Authors: Khamid Z. M. , Vasilevskii D. I. , Korol’kov A. Yu. , Balandov S. G.
Published: June 2020

The OBJECTIVE was to present the results of surgical treatment of the patient with the combined pathology: celiac trunk compression syndrome and hiatal hernia. In the 63-year-old patient with chronic abdominal pain and dysphagia, a type III esophageal hiatus hernia and a celiac trunk compression syndrome were detected during the examination. The simultaneous operation was performed: laparoscopic decompression of the celiac trunk and laparoscopic removal of the hiatal hernia with fundoplication according to R. Nissen.
Aspect of laparoscopic treatment of patients with adhesive small bowel obstruction (review of literature)
Authors: Shkerdina M. I. , Antonyan S. G. , Zharikov Yu. O.
Published: June 2020

Nowadays, adhesive small bowel obstruction (ASBO) is a disease characterized by the stable increase in the number of patients, a significant level of postoperative complications, and a high risk of disability and death. The objective of the article was the research and analysis of relevant data of video laparoscopic treatment of patients with ASBO and possible postoperative complications. A small percentage of complications in clinical centers with a large flow of patients of this profile and rapid postoperative recovery of patients promote the active introduction of laparoscopic adhesiolysis in practical medicine. The analysis of foreign and domestic literature showed that the faithful adherence of indications for application of the technique for resolving intestinal obstruction and restoring passage through the gastrointestinal tract allows to achieve better results and avoid iatrogenic and infectious complications. Thus, laparoscopic treatment can and should be the operation of choice only in a carefully selected group of patients (the first manifestation of ASBO, the absence of pronounced ischemic changes in the intestinal wall and (or) the predicted presence of a small number of peritoneal adhesions), in all other cases, the use of laparotomy is indicated. Currently, there is a clear trend towards an increasing recognition and use of laparoscopy in surgical practice. It is becoming the preferred choice in clinical centers with extensive experience in the treatment of patients with ASBO due to an insignificant percentage of complications and a rapid postoperative recovery.
İktisadi Bilgi Sınırlı Rasyonelliği İyileştirmekte Avantaj Yaratır Mı?
Authors: KAMBER Sibel Can , SÜSLÜ Bora
Published: June 2020

Davranışsal iktisat, geleneksel iktisadın tam bilgi ile idealize edilmiş rasyonellik varsayımının yerine sınırlı rasyonelliği koyarak, iktisadi kararların ardındaki psikolojik yasaları bulmaya çalışmaktadır. Bu çalışmanın amacı, karar birimlerinin sahip oldukları iktisadi bilginin rasyonel kararlar için avantaj sağlayıp sağlamadığını ortaya çıkarmaktır. Bu doğrultuda hipotezimiz, iktisadi bilgi sahibi olmanın sınırlı rasyonaliteyi düzeltemeyeceğidir. Çalışmada nicel yöntem kapsamında anket çalışması gerçekleştirilmiş; bilişsel eğilim ve kısa yollar literatüründen rasyonellik varsayımına doğrudan karşıt olduğu düşünülen on sezgisel konu sınanmıştır. Araştırmanın evreni, Muğla Sıtkı Koçman Üniversitesi’nde öğrenim gören İİBF ve Eğitim Fakültesi öğrencilerinden oluşmaktadır. Yapılan çalışmada karar birimlerinin sınırlı rasyonel olduğu ve iktisadi bilginin tercihleri rasyonelleştirmediği sonuçlarına ulaşılmıştır.
Preparation and Characterization of Polymer Blends/ Kaolinite Nanoclay
Authors: Hussein Seenaa I.
Published: June 2020

In this research, we prepared a polymer blend of polyvinylalcohol (PVA)/carrageenan/kaolinite by means of the solution cast approach. The composition of the blend was PVA in 1 gm by weight with 0.2 gm carrageenan as a plasticizer. The ratio of nanoclay varied between 1 and 5 wt%. Different properties were investigated in this study such as water vapor permeability, hardness, tear strength, color stability, thermal stability, and antibacterial activity. Water vapor permeability was decreased with increasing the ratio of nanoclay, while the values of hardness, tear strength, color stability, and thermal stability were increased. Also, the antibacterial activity examination with two types of bacteria, e.g. Gram positive (Staphylococcus aureus) and Gram negative (Klebsiella pneumonia), showed inhibition zone diameter which was increased with increasing nanoclay ratio. Moreover, it was found that nanoclay has the ability to kill both Gram positive and negative kinds of bacteria. It was found that the preparation of such films is suitable for food packaging.
Green Synthesis of Reduced Graphene Oxide Using Ascorbic Acid
Authors: Hessain Hayder A , Hassan J. J.
Published: June 2020

A green and low-cost method was used to prepare graphene oxide (GO) and reduced graphene oxide (rGO) by chemical exfoliation of graphite powder by modified Hummers method, followed by reduction using ascorbic acid. X-ray diffractometry (XRD) and field emission scanning electron microscopy (FE-SEM) were used to analyze the structure and morphology of the synthesized materials. Fourier transform infrared spectroscopy (FTIR) and ultraviolet-visible spectroscopy were used to identify the formation of the GO and rGO
Peran Kelompok Tani dan Persepsi Petani Terhadap Penerapan Budidaya Padi Organik di Kabupaten Jember
Authors: Hadi Syamsul , Prayuginingsih Henik , Akhmadi Arief Noor
Published: June 2020

Petani di Kabupaten Jember selama ini masih memiliki kesadaran yang lemah untuk bergeser dari pertanian non organik menuju  pertanian organik. Mereka masih terlena dengan sistem penerapan teknologi pertanian yang serba cepat dan mudah. Padahal telah disosialisasikan oleh para penyuluh bahwa produktivitas lahan dengan sistem organik semakin tinggi, biaya produksi cenderung lebih rendah dan harga output lebih bersaing di pasar. Keberadaan kelompok tani juga tidak banyak memberikan pengaruh yang berarti terhadap tingkat partisipasi anggotanya. Oleh karena itu, tujuan penelitian ini adalah 1) menganalisis peran kelompok tani dalam mendorong partisipasi anggotanya terhadap penerapan budidaya padi organik, dan 2) Menganalisis pengaruh persepsi petani tentang jaminan harga produk padi organik terhadap tingkat pertisipasi petani. Digunakan metode penelitian deskriptif kuantitatif dan kualitatif melalui teknik survei.  Digunakan analisis deskriptif  dan skoring melalui pendekatan skala Likert dan regresi linier sederhana. Hasil penelitian mengungkapkan bahwa peran kelompok tani cukup berhasil dalam mendorong anggotanya untuk menerapkan sistem pertanian organik dengan argumentasi sebagai berikut: 1) Kurangnya pengetahuan dan peran kelompok tani dalam memberi informasi terkait organic farming (44%), 2) Rendahnya tingkat kesadaran petani,  kurang sabar dan tidak mau ruwet (12%), 3) Minimnya informasi terkait sistem pertanian organik dari PPL setempat (24%) , dan 4) Jaminan pasar produk organik belum meyakintan para petani (20%). Adapun faktor persepsi petani terhadap jaminan harga produk berpengaruh nyata terhadap tingkat partisipasi petani dalam penerapan budidaya padi organik.
The Role of Agricultural Extension Worker and Babinsa TNI According to the Farmer's Perspective on The Implementation of Rice UPSUS Program in Gorontalo
Authors: Sumarno Jaka , Hipi Awaludin , Handayani Ari Widya , Rouf Ari Abdul
Published: June 2020

This study aims to analyze the role of Babinsa-TNI and field extension worker (PPL) assistance to the implementation of UPSUS programs and the success of UPSUS targets (increased production). The study was conducted at the UPSUS rice production center in Gorontalo Province, i.e; Bone Bolango District, Gorontalo Regency and North Gorontalo Regency. Sampling was done by simple random sampling method involving 162 respondent farmers during 2017. The measuring method to the role of Babinsa-TNI and field extension worker wasdone by Work Achievement Value Standard. The influence of Babinsa-TNI and field extension workerwas analyzed using the production analysis method usingproduction function of Cobb-Douglas stochastic frontier analysis. The results showed that the average Babinsa-TNI and field extension workerhad good performance in terms of high scoring value indicator. The Babinsa-TNI assistance in implementing the UPSUS program has a significant effect on increasing production and technical efficiency of rice production. The assistance of agricultural extension worker also has a positive effect on increasing production and technical efficiency of rice production.
Image steganography based on DNA sequence translation properties
Authors: Abdullah Abdullah , Ali Sardar , Mstafa Ramadhan , Haji Vaman
Published: June 2020

Digital communication has become a vital part of daily life nowadays, many applications are using internet-based communication and here the importance of security rose to have a secure communication between two parties to prevent authorized access to sensitive data. These requirements led to a number of research in information security that has been done in the past two decades. Cryptography and steganography are the two main methods that are being used for information security. Cryptography refers to techniques that encrypt a message to be sent to a destination using different methods to be done. On the other hand, steganography is the science of hiding information from others using another cover message or media such as image, audio, video, and DNA sequence. This paper proposed a new method to hide information in an image using the least significant bit (LSB) based on Deoxyribonucleic Acid (DNA) sequence. To accomplish this, the proposed scheme used properties of DNA sequence when codons that consist of three nucleotides are translated to proteins. The LSB of two pixels from the image are taken to represent a codon and then translate them to protein. The secret message bits are injected into codons before the translation process which slightly distorts the image and makes the image less suspicious and hard to detect the hidden message. The experimental results indicate the effeteness of the proposed method.
Review of the Methods for Strengthening and Retrofitting Cultural Heritage Structures
Authors: Wafaei Baneh Bira , Wafaei Baneh Koosha
Published: June 2020

Referring to the fact that the history of each country is the identity of its people and the preservation of originality and culture is also considered as a social value, the maintenance of valuable historical monuments, which indicates the path to the growth of human civilization, is of particular importance. Each country is trying to prevent the destruction of its historic buildings and cultural heritage by applying various methods of reparation and retrofitting. Iran, as a country with an ancient civilization, is a heritage of many valuable historical monuments. Traditional construction materials included masonry materials such as clay and mud, stone, wood and brick, and due to the weakness in physical structure and their low shear capacity and tensile strength, these materials do not have strength for example against strong forces from earthquakes and are suffered heavy damages. Unfortunately, in our country, fundamental work has not been performed on historical sites and complexes so far, and practically, the measures have been taken without any improvement in the structural performance of the buildings. Using special technical and specialized methods, the seismic behavior of such buildings could be enhanced against the seismic forces caused by the earthquake, and minimize the damage on the historical buildings to the least possible extent by strengthening historical monuments. In this paper, by separating the components, we examine a number of strengthening methods belonging to each of them.
The Darbendi Bazian Abandoned Alluvial Fan. An Indication for the Lateral Growth of Qara Dagh Anticline, SW Sulaimani, Kurdistan Region, NE Iraq.
Authors: Hossain Abdullah lanja , k Sissakian Varoujan
Published: June 2020

Qara Dagh anticline is one of the main anticlines in the Iraqi Kurdistan Region with NW – SE trend. It is a double plunging anticline almost symmetrical and consists of six minor anticlines some of them exhibit en-echelon plunges. The anticline shows many indications of lateral growth which indicate Neotectonic activities. Among those indications is the Darbendi Bazian abandoned alluvial fan. In this study, the details of the fan are presented and discussed as interpreted from satellite images. The interpreted data is checked in the field and it is found that the alluvial fan is a large fan showing typical symmetrical fan. It is a single stage fan covered by fine materials. The thickness of the fan ranges from (2.5 – 6) m, whereas its length and width are 4.18 km and 1.35 km, respectively. The fan was originated from Tinal stream which was draining the area behind the apex towards south and south west and nowadays flows in an opposite direction. The alluvial fan’s geometry, constituents, genesis and mode of deposition are given and discussed.
A Game Theoretic Model of Iranian Labor Market
Authors: Brumand Younes , Salary Masoomeh
Published: June 2020

In this paper, we analyze the interactions among workers, employers, and the government in the Iranian labor market using game theory. For this purpose, different games among the factors affecting the labor market are analyzed in both static and dynamic situations. In each case, intervention and non-intervention of the government are also examined. Thus, four different types of games are studied, including a static game between worker and employer, without government intervention; a static game among workers, employers, and the government; a dynamic game between worker and employer, without government intervention; and a dynamic game among workers, employers, and the government. In the first three games, Nash equilibrium implies low productivity of worker, low employer’s profits, and high unemployment rate in which players want to maintain the status quo. However, in the dynamic game among workers, employers, and the government, the sub-game perfect equilibrium of the game can provide some conditions in which the labor market gets away from the low productivity situation
Public awareness, involvement, and practices in electronic waste management in Addis Ababa, Ethiopia
Authors: Kitila Abenezer , Woldemikael Solomon
Published: June 2020

Following the upsurge of technological developments escorted with scale economies, the electronic industry has decidedly growing and brought one of the major environmental problem known as electronic waste or e-waste. In particular, this study investigates the public awareness about e-waste and the level of engagement in e-waste management practices. The survey covers household heads, general service department workers and higher governmental officials of Addis Ababa. The findings discovered that households’ level of awareness about e-waste and its management was much lower than the general service department personnel and higher governmental officials. Evidently, the ordinal regression outputs has revealed statistically significant results between the sub-cities as well as the educational institutions and governmental sector offices. It also appears that respondent’s educational qualifications and monthly incomes had unequivocally affects the awareness and engagement level. E-waste is considered and treated like other types of municipal solid wastes. It is ostensible that there were newly purchased electronic equipment but which are not yet serviceable due to the absence of manuals, their sizes and designs and lack of knowhow. Therefore, in view of these veracities, the study discernibly highlighted the implications of the existing status and suggests certain recommendations to raise public awareness on e-waste.
The Judicial Review of Law-Making Process in Iraq under the Constitution of Republic of Iraq-2005
Authors: Qadir Adnan
Published: June 2020

The law-making process as a whole vested in the legislative power in the presidential form of government, however in the parliamentary form of government, the executive power participates in the law-making through introducing bills along with legislative initiatives. The Constitution in Iraq grants an original authority to legislate federal laws to the Council of Representatives, however the executive power namely the President and the Council of Ministries participates in the process through introducing government bills to the Council of Representatives. Although the Constitution clearly identifies two methods through which bills shall be presented to the Council of Representatives, there have been disagreements over the constitutionality of laws legislated based legislative initiatives not government bills. The Federal Supreme Court has decided differently on different occasions by depriving the legislative power of its right to initiate in some cases or by putting restrictions in some other cases. This research analyzes the line drawn between the Council of Representatives and the executive power in the process of law-making at its first stage and then examines the Federal Supreme Court’s understanding in the light of the text of the Constitution.
Influence of Teacher-Student Relationships on Students’ Loneliness in Coeducational and Single-Gender Public Secondary Schools in Kenya: a case of Murang’a County
Authors: Peter Baru , Kariuki Zachariah , Ndegwa Lucy , Njoka Johannes
Published: June 2020

The objective of this study was to establish the influence of teacher-student relationship on loneliness among secondary school students. The study was carried out in sub county public schools in Murang’a County, central region of Kenya. A cross sectional survey design was used. Stratified random sampling was used to get a sample of 592 participants from eight sub counties in Murang’a County. Loneliness was measured using Perth aloneness loneliness scale (PALs) while teacher-student relationship (TSR) was measured using ten statements with graded responses in a five point Likert scale developed for this study. The PAL and TSR scales together with personal data questions formed sections of self administered questionnaire. Administration of the questionnaire was done during normal school days by research assistants. The data was coded and analyzed using statistic program for social sciences (SPSS) version 20. Findings were that TSR was inversely and highly significantly related to loneliness. Regression analysis revealed that TSR predicts 16.2% of loneliness among students. The results are discussed in relation to implications in teacher training curriculum and loneliness counseling in schools.
Evaluasi dan Pengembangan Angkutan Penyeberangan di Dermaga Ngunut Kabupaten Tulungagung
Authors: Priyambodo Priyambodo
Published: June 2020

Abstrak Angkutan penyeberangan di Dermaga Ngunut Kabupaten Tulungagung sangat dibutuhkan oleh masyarakat sekitarnya karena dapat membantu mobilitas mereka sehari-hari. Tujuan dari penelitian ini adalah untuk mengevaluasi dan mengembangkan angkutan penyeberangan di Dermaga Ngunut. Dengan menggunakan analisis deskriptif kualitatif dan analisis SWOT, penelitian ini menunjukkan bahwa angkutan penyeberangan di Dermaga Ngunut berada pada posisi kuat (strong) dan menengah (medium). Angkutan penyeberangan di daerah tersebut memiliki peluang yang tinggi serta kekuatan yang cukup (medium) untuk ditumbuhkan dan dikembangkan walaupun  memiliki kelemahan. Salah satu kelemahannya ialah Pemerintah Kabupaten Tulungagung memiliki keterbatasan wewenang dalam pembinaan dan pengelolaan angkutan penyeberangan. Dengan demikian, strategi yang dapat diterapkan adalah mengubah kelemahan menjadi kekuatan dengan cara memberikan kewenangan yang lebih besar kepada Pemerintah Kabupaten Tulungagung untuk mengelola angkutan penyeberangan di daerahnya. Aspek sarana yang perlu diperhatikan ialah pembuatan perahu yang belum mengikutsertakan pendamping atau teknisi dari industri galangan kapal. Adapun, aspek prasarana yang perlu diperhatikan ialah pembangunan dermaga yang belum sepenuhnya mengikuti proses dan prosedur dari instansi yang berwenang. Kata kunci: Angkutan penyeberangan, sarana prasarana, kelaikan berlayar, SWOT, strategi AbstractEvaluation and Development of Ferry Services at Ngunut Dock, Tulungagung Regency: Communities around Ngunut Dock, Tulungagung Regency, require ferry services to help their daily mobility. This research was designed to evaluate and develop ferry services at this dock by qualitative descriptive analysis and SWOT analysis. The results showed that the ferry services observed were in the strong and medium cells and had a great or excellent opportunity and a decent strength (medium) to grow and develop mainly because the community needed these services. This research, however, identified a weakness, i.e., the government of Tulungagung Regency had little to no authority to build and manage the ferry services. For these reasons, the strategy adopted must factor in improvements that change the weakness into a strength by giving the local government greater authority in the management. Future facility and infrastructure development must consider the fact that the ferry boat was made without technical assistance from the ship or boat industry and that the dock construction did not entirely follow the processes and procedures recommended by relevant authorities.  Keywords: Ferry services, infrastructure, seaworthiness, SWOT, strategy
A New Mathematical Formulation for Estimating Flow Capacity and Phase Mobility in Oil-Water Segregated Flow Systems
Authors: Nooruddin Hasan , Rahman N. M.
Published: June 2020

A new analytical procedure is introduced for the interpretation of pressure-transient data in oil producers with pronounced water production. The new mathematical model is applicable to flow conditions where segregated flow dominates the displacement process in the reservoir. Here, formation flow capacity and individual magnitudes of oil- and water-phase mobility are also determined, allowing accurate reservoir characterization under such complex flow conditions.

Segregated flow is very common in natural porous rocks and is characterized by a sharp interface between oil and water. Hence, our new mathematical model mimics the dynamics of this flow mechanism by taking into consideration the individual contributions of oil and water from each reservoir zone. This novel mathematical model is utilized to extract formation flow capacity and mobility for both phases. An average fluid saturation can also be determined with a reasonable accuracy.

The reservoir system in hand is represented by a two-layer model with no crossflow between the different zones in the reservoir. Because of gravity effects, oil is produced from the top layer while water is produced from the bottom one. Each reservoir layer has its own distinct static and dynamic properties, such as porosity, permeability, thickness, and petrophysical properties. A case study based on synthetic reservoir data is presented to demonstrate the application of the mathematical model in characterizing formation rocks. It is observed that conventional well-testing methods could produce inaccurate results when applied to reservoir systems influenced by segregated flow. Using the new model, a correction factor is derived to estimate absolute permeability values from the conventional well-testing analysis, producing a one-to-one transformation between dispersed and segregated flow.

The conventional way of interpreting pressure-transient data for two-phase flow displacements under segregated conditions is based on an equivalent single-phase flow model that might produce inaccurate results and invalid estimates of flow capacity and phase mobility. Our new approach, therefore, is more representative for the system under consideration and captures the flow mechanism more robustly.
Art and Environmental Sustainability. Forming Environmental Identity by Means of Choreography
Authors: Belyakova Irina G. , Mileshko Anastasia L.
Published: June 2020

In connection with the environmental problems that have become more acute at the global level, it has been recognized the need for society to take the path of sustainable development, the main principles of which are focused on a decent standard of living for each member of society, reducing the anthropogenic burden on nature and preserving the environment, including for future generations, as well as the integrated solution of environmental, social and economic issues at the global and local levels. In the process of implementing this concept, a fundamental role of culture was revealed, and a specific role of environmental culture as well, which would ensure a harmonious development of the society and the environment. In particular, it is necessary to transform the worldview, re-evaluate the values and shift the emphasis in consumption from material benefits to spiritual ones.

This research is relevant because of the need to promote the principles of sustainable development in all areas of society that determine the current level of culture and civilization. This work is aimed at analyzing the potential of dance art as a source of indirect influence on the environmental consciousness and thought, reasonable attitude to nature during the environmental culture formation.

Environmental culture is expressed in people’s perception of themselves as a part of nature. One of the elements of environmental culture is environmental consciousness. Having the ability to influence the emotional sphere of a person, art, in particular dance, is a useful tool for effectively perceiving environmental information and motivating environmental activities. Due to its polyfunctionality, art can aid to form the environmental identity at the level of the following components: cognitive (informational, gnostical, educational function), emotional (compensatory, suggestive one), instrumental (social-transforming function).

Based on the analysis of scientific literature and some musical and choreographic works from the standpoint of the ecocentric paradigm, the article suggests that choreography in environmentally oriented performances can serve as one of the effective means of evoking empathy at the deep kinesthetic level, environmental empathy. Choreography can play the role of an emotional component in the process of forming environmental identity, which will in general contribute to the environmental consciousness formation at the individual level.
Writers’ Artistic Biographies That Received the “Big Book” Award (The Genre Typology and Works’ Specificity)
Authors: Babicheva Maya E.
Published: June 2020

The article reviews writer’s biographies as a kind of literary biography genre. There are revealed the thematic and artistic features characteristic to this subgenre of literature. The author systematizes the subgenre’s specific features and shows a wide range of their possible implementation at the present stage. The material for the study was selected among the works that won the national award “Big Book”. In less than fifteen years of the award’s existence, writers’ biographies have taken first place twice (D.L. Bykov’s book about B.L. Pasternak and P.V. Basinsky’s book about L.N. Tolstoy) and second place four times (A.N. Varlamov’s book about A.N. Tolstoy, L.I. Saraskina’s book about A.I. Solzhenitsyn, S.A. Shargunov’s book about V.P. Kataev, and the joint work by A.A. Kabakov and E.A. Popov about V.I. Aksyonov). All these works are analyzed sequentially (in order of receiving the award) in the article. On the one hand, this allows us to identify the features of each of them, on the other hand — to find common typological features that are characteristic of the subgenre in question. A distinctive feature of the book by D.L. Bykov is the deepest “sensitive immersion” of one poet (the author) in the creative work and world perception of another (his character). A.N. Varlamov is characterized by comparison of several sources in order to reveal complete truthfulness. P.V. Basinsky has a specific angle in which the writer’s biography is shown (he puts forward the “family idea”, the most important for Tolstoy himself). L.I. Saraskina focuses on the personality of A.I. Solzhenitsyn, considering his biography as the main artistic work of this author. A.A. Kabakov and E.A. Popov build the text of V.I. Aksyonov’s biography in the form of a lively, casual conversation, while the objectivity of the written is confirmed by a variety of documents submitted in the appendix. S.A. Shargunov traces the reflection of V.P. Kataev’s unusual life, full of real adventures, in the writer’s works.

Nevertheless, all these works have common features. Each of them create a Russian writer’s living and full-blooded image, both tightly included in the historical and cultural context of the corresponding era, and shown in the indissoluble unity of the writer’s personal destiny and creative heritage (which is carefully analyzed). All books are written based on carefully studied biographical materials and documents, including archival ones. The works’ large volume allows including these materials directly in their text.
COMMUNICATIVE COMPETENCES FORMATION IN THE TRAINING MANAGERS PROCESS
Authors: Gromova O. N.
Published: June 2020

The methods of forming students’ communicative competences as an important component of the Manager’s professional activity have been considered. The purpose of the article is to present the results of the study of the components of the Manager’s competencies and ways of their formation. Communicative competences and methods of their formation have been emphasized. The features of the preparation and holding of the meetings have been shown. The peculiarity of writing business letters to prevent the development of conflict situations has been revealed. The papers on the preparation of duty regulations, as well as negotiations and negotiations with the use of technical means to improve their effectiveness have been highlighted. The Department of Management Theory at the State University of Management has been working for a number of years to develop communication skills based on the use of active learning methods in the form of business games in all major forms of communication.
QUALITY OF ECONOMIC SPACE: MEASUREMENT PROBLEMS AT THE MESO-LEVEL
Authors: Urunov A. A. , Levina L. F. , Ostapenko V. A.
Published: June 2020

The research of theoretical and methodological issues of assessing the quality of the economic space of Russian regions has been conducted. The concepts of economic space and its quality, institutional environment of economic space have been substantiated. In order to determine the integral indicator of the standard of living and the quality of the economic space, the method of a systematic approach has been applied, which allowed the authors to justify and identify the system-forming indicators of the quality of the ec onomic space and the features of the relationship between them. The developed method of assessing the quality of economic space at the meso-level allows you to form a rating of investment attractiveness of the subjects of the Federation and determine the integral indicator of the quality of life of the population of the regions. The results of the study can be used in the development of investment rating and typology of Russian regions, implementation of social policy and state regulation of spatial development.
MANUFACTURING INDUSTRY FUNCTIONING EFFICIENCY ESTIMATION IN THE REGIONS OF THE RUSSIAN FEDERATION
Authors: Kamaletdinov A. Sh. , Ksenofontov A. A.
Published: June 2020

Manufacturing industry functioning efficiency on the territory of the Russian Federation has been analysed. Statistical data offered by the Federal Tax Service and the Federal State Statistics Service of Russia have been used for research. The object of the study is 85 subjects of the Russian Federation, the subject of the study is the type of economic activity “Manufacturing”, which operates on their territories. The methodological basis of the research were the general scientific methods of cognition. As special methods of cognition, statistical methods were chosen. The index method as a private scientific method has been used. An indicator of the effectiveness of the economic activity “Manufacturing” has been developed. The structure of tax revenues and employed population by type of economic activity in 2017 has been studied. A distribution of subjects by type of economic activity “Manufacturing” has been created.
Sebum: a window into dysregulation of lipid metabolism in Parkinson’s disease
Authors: Sinclair Eleanor , Trivedi Drupad , Sarkar Depanjan , Walton-Doyle Caitlin , Milne Joy , Kunath Tilo , Rijs Anouk , Debie Rob , Goodacre Royston , Silverdale Monty , Barran Perdita
Published: June 2020

A metabolomics profiling approach was conducted to identify diagnostic biomarkers of PD from sebum, a non-invasively available biofluid. In this study, we used liquid chromatography-mass spectrometry (LC-MS) to analyse 274 samples from participants (80 drug naïve PD, 138 medicated PD and 56 well matched control subjects) and detected metabolites that could predict PD phenotype. Partial least squares-discriminant analysis (PLS-DA) models based on this sebum metabolome had correct classification rates of 70.4% and 69.7% to distinguish between drug naïve PD and medicated PD from control, respectively. Variable importance in projection (VIP) scores indicate compounds with significance belonged to sphingolipid, triacylglycerol and fatty acid/ester lipid classes. Pathway enrichment analysis showed alterations in lipid metabolism and mitochondrial dysfunction viz. the carnitine shuttle, sphingolipid metabolism and arachidonic acid metabolism. This study unveiled novel diagnostic sebum-based biomarkers for PD, and provides insight towards our current understanding of the pathogenesis of PD.
Boehmite Nanofiber–Polymethylsilsesquioxane Composite Aerogels: Synthesis, Analysis, and Thermal Conductivity Control via Compression Processing
Authors: Hayase Gen
Published: June 2020

Boehmite nanomaterials have been researched for use in applications such as separation media, fillers for resins, and catalyst support. This study investigates the relationship between structural density and mechanical and thermal performance of boehmite nanofiber-polymethylsilsesquioxane composite aerogels. Tri-functional organosilicon alkoxide, methyltrimethoxysilane (MTMS), was added to a boehmite nanofibers aqueous dispersion, the colloidal nanofibers were coated and bonded with polymethylsilsesquioxane (PMSQ), to produce transparent to translucent wet gel monoliths. Low bulk density composite aerogel panels were prepared by CO2 supercritical drying of the wet gel monoliths before their mechanical properties and thermal conductivity were investigated. As the amount of the MTMS in the starting composition increased, the fibrillar monolith skeleton coated with PMSQ thickened. Correspondingly, the Young's modulus of the monoliths increased, and the thermal conductivity decreased. When the amount of MTMS added was small, it was possible to deform the translucent panels by uniaxial compression. After 30 % uniaxial compression of the panel, the thermal conductivity was suppressed by 19 %. The thermal conductivity response to compressive deformation of fibrous aerogels, after fabrication, may inform future insulation material development.
Rational Design of Donor Acceptor Based Semiconducting Copolymers with High Dielectric Constant
Authors: Mohapatra Aiswarya Abhisek , Dong Yifan , Boregowda Puttaraju , Mohanty Ashutosh , Sadhanala Aditya , Narayan Awadhesh , McNeill Chris , Durrant James R , Patil Satish , Jiao Xuechen , Chakkingal Parambil Priyakumari
Published: June 2020

An efficient photogeneration of free charge carriers has long been recognized as the paramount challenge in organic photovoltaic (OPV) devices. The low dielectric constant organic semiconductors fall short to reduce strong Coulombic interaction of tightly bound exciton and hence lead to a loss mechanism in OPVs due to charge-carrier recombination. To circumvent this problem, we adopt a strategy to enhance the dielectric constant of organic semiconductors by incorporating tetraethyleneglycol (TEG) side-chains. We report synthesis of three new semiconducting copolymers by combining thiophene substituted diketopyrrolopyrrole (TDPP) monomer with three other monomeric units with varying electron donating strength: benzodithiophene (BBT-3TEG-TDPP), TDPP (TDPP-3TEG-TDPP) and naphthalene diimide (PNDITEG-TDPP). BBT-3TEG-TDPP and PNDITEG-TDPP showed highest dielectric constants (~ 5) at 1MHz frequency suggesting efficient contribution of dipolar polarization from TEG side-chains. To understand the electronic contribution of the polymer backbone and the polarity of TEG side-chains, and the resulting enhancement of the dielectric constant, we further performed first-principles density functional theory calculations. Single-component organic solar cells (OSC) fabricated utilizing these polymers resulted in poor performance which is attributed to the absence of free charge generation. Furthermore, transient absorption spectroscopy studies show low exciton diffusion length as observed in donor-acceptor type conjugated polymers. Our results suggest that, the strategy of enhancing dielectric constant with polar side-chains is not sufficient to reduce Coulombic interaction between hole and electron in OSCs.
An Integrative in Silico Drug Repurposing Approach for Identification of Potential Inhibitors of SARS-CoV-2 Main Protease
Authors: Djokovic Nemanja , Ruzic Dusan , Djikic Teodora , Cvijic Sandra , Ignjatovic Jelisaveta , Ibric Svetlana , Baralic Katarina , Djordjevic Aleksandra Buha , Curcic Marijana , Djukic-Cosic Danijela , Nikolic Katarina
Published: June 2020

Aims: An infectious disease (COVID-19) caused by the coronavirus SARS-CoV-2 emerged in Wuhan, China in December 2019. Currently, SARS-CoV-2 infected more than 9 million people and caused more than 450 000 deaths. Considering the urgent need for novel therapeutics, drug repurposing approach might offer rapid solutions comparing to de novo drug design. In this study, we investigated an integrative in silico drug repurposing approach as a valuable tool for rapid selection of potential candidates against SARS-CoV-2 Main Protease (Mpro).

Main methods: To screen FDA-approved drugs, we designed an integrative in silico drug repurposing approach implementing structure-based molecular modelling techniques, physiologically-based pharmacokinetic (PBPK) modelling of drugs disposition and data-mining analysis of drug-gene-COVID-19 association.

Key findings: Through the presented approach, 43 candidates with potential inhibitory effect on Mpro were selected and further evaluated according to the predictions of tissue disposition, drug-gene-COVID-19 associations and potential pleiotropic effects. We singled out 9 FDA approved drugs as the most promising for their profiling in COVID-19 drug discovery campaigns. Our results were in agreement with current experimental findings, which validate the applied integrative approach and may support clinical decisions for a novel epidemic wave of COVID-19.

Significance: To the best of our knowledge, this is the first integrative in silico repurposing study for COVID-19 with a clear advantage in linking structure-based molecular modeling of Mpro inhibitors with predictions of tissue disposition, drug-gene-COVID-19 associations and prediction of pleiotropic effects of selected candidates.
A High Capacity and High-Rate Anode Material for Lithium-Ion Batteries Based on Bimetallic CoNi-MOFs
Authors: Sun Shaorui , Lv Ziran , Chai Yanxiao , Li Shuyuan , Tian Yexing , Zhuang Chunqiang , Zheng Lirong , Yu Jun
Published: June 2020

Metal-organic frameworks (MOFs) with a high porosity and high specific surface area are widely used as anode materials in Li-ions batteries. Herein, we synthesized bimetallic CoNi-MOFs with a general solvothermal method, and the obtained CoNi-MOFs show alamellar bulk structure. The CoNi-MOFs exhibit a remarkable electrochemical performance, with a high reversible capacity up to 1120 mAhg-1 after 200 cycles performed at a current density of 500 mA g-1 and an excellent rate performance, which is ascribed to the variable-valence metal ions and redox-active ligands. We employed a suite of measurements, including X-ray photoelectron spectroscopy (XPS), X-ray adsorption fine structure (XAFS) measurements, and scanning electron microscopy (SEM).The SEM images show that the morphology of the electrode changes as the electrode is charged and discharged during cycling.We found that the transition metals Co and Ni are in high valence states during charging. However, the XAS and XPS results suggest that Ni2+ and Co2+ are induced to Ni0 and Co0during discharging. This evidence is conducive to exploring the intrinsic mechanism of Li insertion/extraction and understanding the electrochemical behaviors. We optimized the material design and performed a more in-depth study of the mechanism used to make the MOF materials better to meet the high power/energy density requirement of lithium-ion batteries (LIBs).