bluuebunny/crossref_metadata_2025 huggingface dataset:
TINDAK TUTUR DALAM TRADISI PERNIKAHAN MASYARAKAT MADURA PADA ERA MILLENIAL: KAJIAN SOSIOPRAGMATIK
Authors: Kusumawati Hesty , Innayah Innayah
Published: February 2021

Humans are social creatures who have the nature to live together, side by side, and they need one to each other to achieve physically and mentally peace in order to share the joys and sorrows of living life, therefore they create a marriage. Marriage is a sacred event that binds man and woman, involving two families, both man and woman. In the use of language it is believed that the meaning is very closely related to the form. However, each language has its own characteristics and uniquenessess. Likewise, the Madurese language has special characteristics and uniquenessess. One of the uniqueness is manifested in the form of Madurese marriage tradition. The tradition of Madurese marriages has several stages, the first stage is namely engagement (abhâkalan), the second stage is marriage, and the last namely is post-marriage. In this study, researcher used a qualitative descriptive approach with the method of listening. This study aims to see how the speech acts that appears in the speech of the Madurese in the Madurese marriage tradition in the millennial era.
NILAI-NILAI BUDAYA DALAM CERITA RAKYAT ASAL-USUL PAYANDERKET KAB KARO
Authors: Sembiring Lija Melisa Br
Published: February 2021

This study aims to determine the cultural values contained in the folklore of the origin of the Karo district Payanderket.  Cultural values are contained in the contents of the Payanderket story and supporting theories.  This research uses descriptive analysis method.  Some steps taken to obtain and analyze this research are conducting interviews with sources, classifying sources obtained from the folklore of the origins of Payanderket and then applied in writing, then reviewed to determine the cultural value contained therein, to conclude the results of research  .  The data obtained is referred from various library sources and then grouped based on certain criteria.  The results showed that there were five cultural values namely, kinship values, religious values, legal values, conflict values, and compassion values.  Each value has a very deep meaning showing the authenticity of the folklore of the origin of the Karo Regency Payanderket.  By understanding and understanding the contents of the folklore of the origins of the Karo district Payanderket, it will be easier to obtain wisdom and learning the value of life from the folklore of the origin of the Payanderket Karo district.
MEMBACA PUISI DENGAN METODE MEMBACA ESTETIK PADA SISWA SMK N 1 SLAWI
Authors: Sari Vita Ika , Triana Leli , Nirmala Afsun Aulia , Anwar Syamsul
Published: February 2021

This dedication shows that the lack of stability of the concept and aesthetic reading process is one of the obstacles that inhibits the fostering of the appreciation of the literature of students of SMK N 1 Slawi. The purpose of this dedication is 1) Identifying the ability to read literary texts, especially reading poetry in students of SMK N 1 Slawi. 2) Describe the application of aesthetic reading in literary learning, especially reading poetry at SMK N 1 Slawi. The method used in this service is a qualitative instrumental approach. Where this dedication will produce new methods in reading aesthetics. The sample in this service is class XI student of SMK N 1 Slawi. Data collection techniques used were observation, interviews, observations on all parties involved in the implementation of this service. The results of this dedication of 10% of students are able to read poetry well and by 90% of students have not been able to read poetry well in the first meeting. There was an increase in the ability to read poetry after being given aesthetic reading stimulus by the team, that is 70% of students were skilled in reading poetry and 30% of students had difficulty in determining gestures and appreciation.
GAYA BAHASA PERULANGAN DALAM NOVEL ORANG-ORANG BIASA KARYA ANDREA HIRATA DAN IMPLIKASINYA TERHADAP PEMBELAJARAN BAHASA INDONESIA DI SMA
Authors: Nabilah Veni Zakiatun , Mulyono Tri , Anwar Syamsul
Published: February 2021

Penelitian ini bertujuan untuk mendeskripsikan gaya bahasa perulangan dalam novel Orang-Orang Biasa karya Andrea Hirata dan mengetahui implikasi pembelajaran di SMA. Penelitian ini berbentuk deskripsi kualitatif. Metode yang digunakan adalah metode deskripsi kualitatif. Sumber data adalah novel Orang-Orang Biasa. Teknik penyediaan data menggunakan teknik pustaka, teknik baca, dan teknik catat. Data yang diperoleh akan diklasifikasikan, dideskripsikan, dan disajikan menggunakan metode informal. Berdasarkan hasil penelitian dapat disimpulkan bahwa dalam novel OOB menggunakan beberapa gaya bahasa perulangan. Gaya bahasa perulangan tersebut ada sembilan, yaitu aliterasi, asonansi, antanaklasis, epizeukis, anafora, epistrofa, mesodilopsis, epanalepsis, dan anadilopsis. Gaya bahasa perulangan yang paling dominan dalam novel tersebut adalah anafora. Gaya bahasa perulangan yang digunakan Andrea pada novel OOB bertujuan untuk menambah nilai keindahan dalam novel tersebut dengan cara menekankan kata atau frase yang dianggap penting diulang. Hasil penelitian ini dapat diimplikasikan pada pembelajaran bahasa Indonesia di SMA kelas XII semester 1 dengan materi sastra dan pokok bahasan gaya bahasa khususnya gaya bahasa perulangan.
RAGAM PERTANYAAN DAN TEKNIK BERTANYA PENGAJAR BIPA DALAM INTERAKSI PEMBELAJARAN DI KELAS
Authors: Zamahsari Gamal Kusuma , Putikadyanto Agus Purnomo Ahmad , Ansori Redhitya Wempi
Published: February 2021

Penelitian ini bertujuan mendeskripsikan ragam pertanyaan dan teknik bertanya pengajar BIPA dalam pembelajaran di kelas. Pendekatan dan desain penelitian ini adalah kualitatif. Hasil penelitian menunjukkan bahwa pengajar BIPA cenderung menuturkan ragam pertanyaan yang berupa pertanyaan referensial, pertanyaan pancingan, pertanyaan klarifikasi, pertanyaan konfirmasi, dan pertanyaan pemahaman. Aspek-aspek teknik bertanya yang baik dalam pembelajaran yaitu menjaga pemelajar tetap fokus pada proses tanya jawab, menyusun pertanyaan dengan sangat baik, menyediakan waktu tunggu, memberikan umpan balik yang positif, dan memeriksa jawaban untuk diperbaiki telah dilakukan oleh pengajar.
Cybersecurity Guide
Authors: ALECU Iulian , CIUCHI Costel , CÎMPEANU Toma , COMAN Iulian , GĂBUDEANU Larisa , MIHAI Ioan-Cosmin , MOGHIOR Cosmina , MUNTEANU Nelu , PETRICĂ Gabriel , STOICA Ionuț , ZETU Cătălin
Published: February 2021

Cybersecurity Guide
Teaching public administrators and leaders to handle complexity
Authors: Raisio Harri , Puustinen Alisa , Vartiainen Pirkko , Lindell Juha , Ollila Seija
Published: February 2021

Understanding and working under complexity has become ‘the new normal’ in public administration. Hence complexity must also be integrated into teaching and training of public administrators, not only in higher education but also in in-service training and educating wider society. This can be done by combining the ongoing research agenda into courses and teaching methods. This article describes the integration of complexity thinking and teaching in one university, both by giving examples on the courses and methods applied, student feedback received and by anticipating future developments. Finally, practical advice for teachers of complexity is given.
Superconnected, Complex and Ultrafast: Governance of Hyperfunctionality in Financial Markets
Authors: Galaz Victor , Pierre Jon
Published: February 2021

Increased trading with financial instruments, new actors and novel technologies are changing the nature of financial markets making trade faster, more information dense and more globalized than ever. These changes in financial markets are not incremental and linear, but transformative with the emergence of a new “machine-ecology” with intricate system behavior and new forms of systemic financial risks. We argue that the nature of these changes pose fundamentally new challenges to governance as they require policy-makers to respond to system properties characterized by not only complex causality, but also extreme connectivity (i.e. global), ultra-speed (i.e. micro-seconds) and “hyperfunctionality”. Governance can fail at the system level if a subsystem performs its function to such an extreme; this could jeopardize the efficiency of the system as a whole. We elaborate in what ways governance scholars can approach these issues, and explore the types of strategies policy-makers around the world use to address these new financial risks. We conclude by pointing out what we perceive as critical research fronts in this domain.
Communication and Sensemaking in the Dutch Railway System: Explaining coordination failure between teams using a mixed methods approach
Authors: Schipper Danny , Gerrits Lasse
Published: February 2021

Early in 2014, the Dutch railway system spiralled out of control after traffic management was confronted with the decision to take four double switches and two rail tracks out of service. A lack of coordination between the responsible teams resulted in the decision to stop all traffic in one of the busiest parts of the network during the rush hour.  In this study we aim to understand why the teams in the Dutch railway system were not able to adopt a coordinated approach to reschedule rail services. To answer this question, we used a mixed-method approach by combining dynamic network analysis (DNA) with sensemaking. Our analyses show that a diverging framing of the situation accumulated over time, leading to inconsistent actions, incorrect assumptions and a lack of effective communication. Informal and indirect communication spurred uncertainty and promoted negative emotions, which eventually resulted in a conflict between the actors. We discuss the difficulties of managing ambiguous events in multi-team systems.
Building Resilience in Trans-boundary Social-Ecological Systems: Adaptive Governance in the Lake Champlain Richelieu River Basin
Authors: Spett Emma J
Published: February 2021

Addressing the management of water bodies that cross political, cultural, and ecological boundaries entails working with a level of complexity that requires creative, adaptive management strategies that build resilience throughout the system and allow for increased capacity in the face of disturbance. To characterize the extent to which such complexity can be managed, this paper explores the application of the social-ecological systems framework, proposed by Brian Walker and David Salt, for assessing and managing resilience. Elements of this framework will be utilized with respect to the Lake Champlain Richelieu River Basin, which is a freshwater basin that exists between the United States and Canada, in Vermont, New York, and Quebec. The paper will end with considerations regarding how adaptive management and adaptive governance can be employed as tools to build resilience in this region.
Problems of Latin American Democracy as Interpreted by Researchers
Authors: D’yakova L.
Published: February 2021

The article deals with problems of the modern Latin American democracy in the context of various research methods, factors of stability and proneness to conflict, as well as new challenges for democracy set by the developing modern society. The author analyzes the leading experts' opinions in the field – mainly Spanish and Latin American researchers involved in modern social and political problems. Much attention is given to: political development issues in the region; transformation of the political parties' and civil society's role in response to consolidation of Latin American democracies; the youth activity as a new political phenomena; the increase of social protests, and the phenomenon of exaggerated social expectations. The important role of the social policy in stabilization of the political situation in the region, as well as in a successful democratic consolidation process is noted. Almost all countries of the region used the period of economic prosperity and growth (2003–2013) to develop and implement a targeted social policy aimed at the social sphere development, employment growth, and the improvement of education and public health systems. But the majority of successful social projects were devoted mainly to solving the most daunting and morbid problem of the Latin American society – poverty, which has been significantly lowered. Thus, the state targeted social policy played a significant role in shaping a positive attitude towards democracy. However, even over a ten-year period of economic growth, a state was unable to solve all problems accumulated. These challenges have been left unattended. It poses a serious threat to political stability. It is noted that the assessment of the democratic development prospects in the leading countries is closely related to social pessimism, which has been spreading among different classes of the Latin American society in recent years, and is associated not only with the worsening economic situation, but also with the growing disappointment in possibilities of democracy itself. Ineffective public administration, bureaucratization of state agencies and corruption cause irritation and discontent among the population. At the same time, along with criticism and emphasis on the subject of “disappointment” in politics, the commanding view among researchers is that the liberal democracy must be defended despite all its drawbacks and weaknesses, as the challenges for democracy set by the modern developing society, however serious they may be, are merely the tests of its prospects and possibilities, and not the evidence of its inconsistency.
United Nations Peace Operations: Reconsidering the Principles, Reforming the Practice
Authors: Nikitin A.
Published: February 2021

The article describes and debates main points and recommendations of the Report-2015 of the Independent High Level Group on the UN Peace Operations. The author analyses doctrinal innovations and practical guidelines suggested by the Group and debates consequences of the recommended “politicizing” of the UN operations (assuring the leading role for the UN in any political peace process supported by UN peacekeepers, and avoiding operations where the UN role is limited to passive disengagement of conflict sides). Necessity for and limits of reconsidering traditional principles of peacekeeping, such as impartiality, consent of conflict parties, and use of force for self-defence are questioned. Trends in UN operations are compared with trends in operations related to conflicts in the Post-Soviet space (South Ossetia/Georgia, Abkhazia/Georgia, Tajikistan, Transnistria/Moldova, etc.). The author advocates timeliness for an extended interpretation of the “defence of the mandate” formula instead of the classical “self-defence of the contingent”. It is suggested to practically erase the dividing line between operations of the “peacekeeping” type under the UN DPKO, and “political missions” under the UN Political Department. The arsenal of the UN instruments for conflict resolution must be widened from non-intrusive observation missions, conflict prevention and mediation, through support of ceasefire agreements and implementation of peace accords, down to coercive peace enforcement, offensive elements, and UN Charter Chapter VII-based collective operations against aggressive regimes and states. Poorly defined functions and insufficiently clarified use of force limits for the SC-mandated “UN Intervention Brigade” in Democratic Republic of Congo lead to unnecessary involvement of the UN into coercive actions. The experience of the UN “infrastructural hubs” establishing, like the one in Entebbe (Uganda) used for supplying eight African UN operations, is described. New technology for peacekeeping, like the use of unpiloted flying drones, opens new opportunities, but creates legal and practical problems. A distinction of functions between “blue helmets” (specially trained multinational UN contingents) and “green helmets” (regular national armies used by states in foreign conflicts) is recommended, including avoidance of counter-terrorism tasks and strong coercive tasks for the UN peacekeepers. Parallel and interfaced “partnerships” between the limited UN operations and more forceful national/coalition operations in the same areas are suggested instead.
Nordic Countries in Transatlantic Partnership: a Severe Challenge
Authors: Voronov K.
Published: February 2021

In the Euro-Atlantic relations system (USA, NATO, EU), small Nordic countries are forced, in a conformist way, to adapt themselves to unsteady parameters of global and regional conditions. Irrespective of the Ukrainian crisis duration, they will drift together with their EU partners to a greater autonomy from the USA, not interrupting tight links with their transatlantic supervisor. It seems that the geopolitical pressure on Russia, the creation of threat to its North-West by the growing military potential is not seen very clearly. A deep transformation of relations between the USA, Europe and Russia indirectly affected the Nordic Europe. The mobilization of elites and inhabitants on the basis of defensive discourse is taking place in the Northern subregion. NATO and EU are trying to react accordingly, but still do not justify the expectations of Nordic Europeans. The new strategy accomplishing to deter Moscow’s “revisionist behavior”, but at the same time, to secure Russia's involvement in international affairs for a long-term perspective is, from viewpoint of the Nordic community, one of the priority tasks of transatlantic partners for a more balanced, stable, complex world order. The transatlantic policy of Nordic countries is changeable in a very short range of variants. In this subregion, one may see the interaction/competition between two segments of the Euro-Atlantic security: NATO (art. 5 of the Washington Treaty) and EU (Lisbon Treaty – an additional option) as an independent “power center”. The activation, especially the institutionalization of the subregional Northern defense cooperation (the report made by T. Stoltenberg on February 9, 2009; NORDEFCO; the initiative of the Ministers of Defense on April 9, 2015) may become a new strategic macro factor under conditions of the complicated interaction/ competition between two segments (NATO and EU) for the Euro-Atlantic security in the future Europe.
Russia and East Asia Challenges
Authors: Fedorovskii A.
Published: February 2021

The article deals with the prospects for Russia’s “pivot to the East” taking into account main chances as well as risks in the context of growing challenges in East Asia. The author stresses that national and regional misbalances in East Asia are the results of the dynamic development of East Asian countries during the last 15 years. “Middle class trap” is at the agenda as the main common problem in China and ASEAN member countries. The analysis focuses also on such issues as broad scaled corruption and state-controlled legal system, quality of political, social institutions and social lifts, role of nationalism and culture. Regional misbalances in infrastructure and R&D as well as the crisis of regional institutions are characterized as new challenges to integration trends in East Asia and Asia-Pacific area in general. According to the author’s view, there are three different types of policies to meet the domestic challenges and to overcome “middle class trap”: Japanese, South Korean and Chinese. Prime Minister Ikeda’s “income-doubling plan” accompanied by public activity is described as an effective reform-oriented policy. South Korea’s transition from dictatorship to democratic society and more flexible economy is another type of positive reform policy. According to China’s modern domestic strategy, a lot of attention is paid to administrative measures against corruption, modification of social policy, reforms of banks, etc. At the same time, public activities and legal system, in spite of some improvements, are still under rigid administrative control. Meanwhile, the role of law will be crucial factor of successful development of East Asian countries at the stage of “middle class economy”. To a large scale, the prospects for regional integration depend on growing creative role of China (for example, investments into regional infrastructure and establishment of special bank, initiations of the Asia-Pacific Free Trade Area). At the same time, China will continue cooperation and dialogue with other countries, first of all with the USA. ASEAN members increase their activity to improve sub-regional cooperation and relations with United States and Japan in order to couterbalance China’s influence in East Asia. Finally, the author describes Russia’s policy towards East Asia and the Pacific, including brief history, main trends and key priorities at the current stage. “Free Vladivostok port” and some other initiatives to realize more flexible economic strategy towards East Asia and Pacific will give opportunity for Russia to promote its integration into the Pacific Area. Transition of Russia’s export structure from resources and energy to innovation goods and services is at the agenda.
Spheres of Innovative Breakthrough in Israel
Authors: Mar'yasis D.
Published: February 2021

Since Israel gained its independence in 1948, it underwent major developments from a relatively undeveloped society to one of the main global high-tech hubs. In the 1990s, when the major technological breakthrough in Israel occurred, the state did not pick up any particular industry as a main goal for assistance. State assistance was given to all high-tech projects that met the criteria of scientific and commercial sustainability. In the 21st century the situation did not change seriously, but it became obvious that an equal development support for all high-tech industries is a backbreaking task. That is why, while not neglecting all other high-tech industries, the state picked up three fields of expertise that are able to become world-leading and remain on top for a long run. These fields are: life sciences, clean technologies, cyber security. As a result of the research, it can be concluded that these three technological breakthrough fields are natural for Israel. The state just strengthened the trend. It was not an artificial move. The three fields have been actively developing lately. But of course there are problems, and some of them are quite serious, comprising a low level of newly created technologies usage within Israel itself, and the lack of funding, especially in biotechnologies and in some segments of clean technologies. During the last ten years Israeli officials have assumed a number of measures to stimulate the three breakthrough industries development. Their common and a very important feature is that they are designed to be taken together with private entities. It refers to the basic concept of the state implying that only private companies and financial bodies should play a major role in shaping up and evolving of all innovation-based industries. And the state’s role is to stimulate the market and to support market mechanisms when needed, as well as to develop instruments for overcoming different market failures in case they occur. This paper shows that in spite of all the problems, Israel succeeded in creating of a solid background for implementing a long-run global leadership strategy for the three selected technological breakthrough industries.
New World Economic Development Trends and Latin America
Authors: Klochkovsky L.
Published: February 2021

There are substantial changes in the evolution of world economy and world economic relations. The growth rates of international trade have diminished two-fold, the prices for oil and other commodities have fallen, and the competition on world markets has sharpened greatly. These new trends complicate fundamentally external conditions for the economic development of peripheral regions, especially Latin America. Latin American countries have reached a phase of considerable economic deceleration. Under these circumstances, there is an urgent need for reconsideration of key conclusions made by some Russian experts on the possibilities of the future economic and social growth of Latin America. The author examines the most discussed aspects of the Latin American modern economic situation – the deepening technological gap and slow rates of technological progress, the limited role of internal economic motive forces, the conservation of foreign economic dependence. The future of Latin America’s economic development is uncertain in many respects and will depend greatly on foreign economic conditions. The new world balance opened important additional possibilities for Latin America on world markets. China has converted into the second largest economic partner of the region. But there is a number of complicated problems in their relations that need an urgent regulation. At the same time, the strategic task for Latin America consists in finding of effective ways for further broadening of economic relations with the United States in terms of equality and mutual benefit.
Economic Integration: Lessons for the Post-Soviet Space
Authors: Golovnin M. , Zakharov A. , Ushkalova D.
Published: February 2021

Authors examine economic effects of regional integration in the emerging markets, impact of globalization on economic integration and existing models of economic integration in different regions of the world in order to distinguish key characteristics of efficient model of integration at the post-Soviet space. In particular, authors distinguish the significance of various static and dynamic effects of economic integration for emerging markets and make a conclusion on the rising importance of dynamic effects. It is proved that positive economic effects of integration could be more evident for the emerging markets than for the developed ones. On the basis of a detailed analysis of specific features of economic integration projects in different regions of the world, a conclusion is drawn on key importance for emerging markets of such formats of economic integration that directly contribute to economic development (infrastructure development projects, creation of growth poles, formation of scientific and technological potential, etc.). In the context of globalization the strengthening of cooperation in investment sphere, the implementation of integration projects on financial markets, the creation of common defensive mechanisms against external shocks are of particular significance for economic integration processes. Basing on the undertaken analysis, the main principles of efficient model of integration in the Eurasian Economic Union are outlined and the key terms of realization of this model are defined. First of all, an efficient model of integration in the Eurasian Economic Union should be formed in contest of interaction between this union, at the one hand, and European and Asian integration centers, at the other hand. Then, integration mechanisms should extend beyond traditional schemes of integration and include different types of agreements (on preferential investment, financial integration and cooperation), sectoral cooperation projects, common policies, etc. Formation of single humanitarian, scientific and innovation environment should become the key element of the integration model of the Eurasian Economic Union. Acknowledgements. The article has been supported by a grant of the Russian Fund for Humanities.Project No. 13-33-11120.
Demographic Burst, Population Ageing and Labor-saving Technologies: Interaction in the 21st Century
Authors: Akimov A.
Published: February 2021

The ageing of population in the coming decades is becoming a constraint on economic growth in developed economies and countries of Eastern Asia, but labor-saving technologies including robotics and artificial intelligence may remove this limitation. At the same time, population growth in South Asia and Africa will face lower demand for cheap and low-qualified labor. Pairs of scenarios (success and failure) are proposed for principal regions and countries. For the West, a positive scenario is “the West closes”, which foresees high level of the industrial application of robots and no labor immigration. A negative one – “The West dissolves”, which means high immigration, but no jobs for immigrants, and immigrants’ straddle for domination in social life. The “robo China” foresees high level of robotics in China, high productivity and governmental planning of labor market. The “two Chinas” contemplates an urban high-tech China and a rural China which is not integrated into technological modernization. Central government hardly keeps social situation stable in this case. For India, the “partial participation in robotized economy” is a positive choice making India an element of the new global economy. India develops in the same vein as the West and China. “Out of the new economy” leaves India in the group of developing nations. For Africa, a positive scenario is “rental economy”. Human potential of Africa is not in demand as labor-saving technologies dominate in the global economy, but natural resources attract foreign investors. They pay rent, and it is distributed by governments among inhabitants. “Population growth burden” is a negative variant that foresees high unemployment and lack of financial resources. International assistance is the only way out in this case. Russia is buying labor-saving technologies abroad. The structure of Russian economy now enables to remove limitations resulting from the population ageing, but technological import makes Russia highly vulnerable.
Обратные задачи анализа межотраслевых балансов
Authors: Рассоха Анастасия Владимировна , Rassokha Anastasiya Vladimirovna , Шананин Александр Алексеевич , Shananin Aleksandr Alekseevich
Published: February 2021

Предлагается модификация подхода к анализу межотраслевого баланса. Вместо предположения В.В. Леонтьева о постоянстве норм затрат производственных факторов используется более реалистичное в современных условиях предположение о постоянстве пропорций межотраслевых денежных потоков. Предложен алгоритм решения обратной задачи, которая позволяет идентифицировать модель нелинейного межотраслевого баланса с функцией полезности и производственными функциями Кобба-Дугласа по данным симметричной таблицы затраты-выпуск. На основе использования преобразования Янга и двойственности по Фенхелю разработана технология анализа межотраслевых связей с помощью этой модели. Технология опробована на данных экономической статистики России.
Basic values of Russian and foreign students (comparative aspect)
Authors: Nesterova Tatiana Vyacheslavovna , Persiyanova Svetlana Georgievna , Karadzhev Bagaudin Ibragimovich
Published: February 2021

The article deals with the comparison of the basic values of modern students (Russian and foreign). The authors examine and compare basic values held by modern students (Russian and foreign). The study is based on the typology of basic values of Russians (research project "Tomskaya initsiativa", 2001) and the list of values from the S. Schwartz Value Survey. The respondents are asked to choose 10 key values out of 40 basic values and assess them using the S. Schwartz scale. The surveys performed by the authors at the Pushkin State Russian Language Institute and Moscow Automobile and Road Construction State Technical University are used as the materials for the study.
MÉTODOS NUMÉRICOS RUNGE-KUTTA Y ADAMS BASHFORTH-MOULTON EN MATHEMATICA
Authors:   Universidad Rovira i Virgili, Segarra Jaime
Published: February 2021

n este estudio, el objetivo principal es realizar el análisis de los métodos numéricos Runge-Kutta y Adams Bashforth-Moulton. Para cumplir con el objetivo se utilizó el sistema de ecuaciones diferenciales del modelo Lotka-Volterra y se usó el software matemático Wolfram Mathematica. En los resultados se realiza la comparación de los métodos RK4, AB4 y AM4 con el comando NDSolve utilizando el modelo Lotka-Volterra. Los resultados obtenidos en los diagramas de fase y la tabla de puntos de la iteración indicaron que el método RK4 tiene mayor precisión que los métodos AB4 y AM4.
PROPUESTA PARA LA ESTANDARIZACIÓN DE PROCESOS EN EL ÁREA DE CALIDAD, SEGURIDAD DEL PACIENTE Y SARLAFT (CASO ENTIDAD ONCOLÓGICA COLOMBIANA)
Authors:   Universidad Libre, Salcedo Steeven , Roa Wilmer , Fuentes Ever A.
Published: February 2021

La falta de procesos estandarizados, puede convertirse en un serio problema dentro de las organizaciones, ya que podría atraer consecuencias como: la existencia de no conformidades en los productos y/o servicios, la insatisfacción del cliente, sobrecarga de trabajo, entre otros. El área de Calidad, Seguridad del paciente y SARLAFT de la entidad Oncológica colombiana, objeto de este trabajo, se ha visto afectada por esta problemática, debido a esto y buscando una solución a la misma se desarrolló este proyecto. En la entidad oncológica, se pretende abarcar el problema de la no estandarización, comenzando con un diagnóstico de entrada para comprender el estado de los procesos de la institución, seguido de una adecuada documentación y toma de tiempos de los procedimientos, para finalizar con la generación de indicadores de control y la medición de los costos de no calidad del sistema. Luego de haber aplicado la estandarización, se obtuvo el tiempo idóneo para cada uno de las actividades realizadas por el área; además, se aplicó la metodología PEF (Modelo de Prevención, Evaluación y Fallos), para el análisis de los costos de Calidad y No Calidad en la institución. Con los resultados obtenidos de esta investigación, se logró hacer una propuesta a la entidad Oncológica colombiana, en la cual se hizo la identificación de los procesos que no generan valor agregado a las actividades del área y también de aquellos que presentan un riesgo elevado para el funcionamiento de la institución.
EL ARTE DE CONSTRUIR MODELOS MATEMÁTICOS DE INVENTARIOS DETERMINÍSTICOS MULTIETAPAS EN MANUFACTURA
Authors:   Corporación Universitaria Republicana, Pineda Perez Cesar Augusto , Orjuela Salazar Yudy Alexandra , Diaz Plazas Angela Lorena , Acero Rivera Dayana Astrid
Published: February 2021

Este artículo presenta el procedimiento de elaboración en la construcción de modelos matemáticos de dos etapas en manufactura. Se describe la forma de elaborar los gráficos, sus relaciones y el desarrollo matemático para determinar las variables del modelo.
Heavy-mineral provenance signatures during the infill and uplift of a foreland basin: An example from the Jaca basin (southern Pyrenees, Spain)
Authors: Coll Xavier , Gómez-Gras David , Roigé Marta , Teixell Antonio , Boya Salva , Mestres Narcís
Published: February 2021

In the Jaca foreland basin (southern Pyrenees), two main sediment routing systems merge from the late Eocene to the early Miocene, providing an excellent example of interaction of different source areas with distinct petrographic signatures. An axially drained fluvial system, with its source area located in the eastern Central Pyrenees, is progressively replaced by a transverse-drained system that leads to the recycling of the older turbiditic foredeep. Aiming to provide new insights into the source-area evolution of the Jaca foreland basin, we provide new data on heavy-mineral suites, from the turbiditic underfilled stage to the youngest alluvial-fan systems of the Jaca basin, and integrate the heavy-mineral signatures with available sandstone petrography. Our results show a dominance of the ultrastable Ap-Zrn-Tur-Rt assemblage through the entire basin evolution. However, a late alluvial sedimentation stage brings an increase in other more unstable heavy minerals, pointing to specific source areas belonging to the Axial and the North Pyrenean Zone and providing new insights into the response of the heavy-mineral suites to sediment recycling. Furthermore, we assess the degree of diagenetic overprint vs. provenance signals and infer that the loss of unstable heavy minerals due intrastratal dissolution is negligible at least in the Peña Oroel and San Juan de la Peña sections. Finally, we provide new evidence to the idea that during the late Eocene the water divide of the transverse drainage system was located in the North Pyrenean Zone, and areas constituted by the Paleozoic basement were exposed in the west-Central Pyrenees at that time. Our findings provide new insights into the heavy-mineral response in recycled foreland basins adjacent to fold-and-thrust belts.
Quantitative 4D Seismic Assisted History Matching Using Ensemble-Based Methods on the Vilje Field
Authors: Wojnar Konrad , Saetrom Jon , Munck Tore Felix , Stunell Martha , Sviland-Østre Stig , Hettervik Knut Olav , Kristoffersen Idar , Andorsen Kent
Published: February 2021

The aim of the study was to create an ensemble of equiprobable models that could be used for improving the reservoir management of the Vilje field. Qualitative and quantitative workflows were developed to systematically and efficiently screen, analyze and history match an ensemble of reservoir simulation models to production and 4D seismic data. The goal of developing the workflows is to increase the utilization of data from 4D seismic surveys for reservoir characterization. The qualitative and quantitative workflows are presented, describing their benefits and challenges.

The data conditioning produced a set of history matched reservoir models which could be used in the field development decision making process. The proposed workflows allowed for identification of outlying prior and posterior models based on key features where observed data was not covered by the synthetic 4D seismic realizations. As a result, suggestions for a more robust parameterization of the ensemble were made to improve data coverage. The existing history matching workflow efficiently integrated with the quantitative 4D seismic history matching workflow allowing for the conditioning of the reservoir models to production and 4D data. Thus, the predictability of the models was improved.

This paper proposes a systematic and efficient workflow using ensemble-based methods to simultaneously screen, analyze and history match production and 4D seismic data. The proposed workflow improves the usability of 4D seismic data for reservoir characterization, and in turn, for the reservoir management and the decision-making processes.
Quantifying Global and Random Uncertainties in High Resolution Global Geomagnetic Field Models Used for Directional Drilling
Authors: Beggan C. D. , Macmillan S. , Brown W. J. , Grindrod S. J.
Published: February 2021

Total field strength, declination, and dip angle of the Earth's magnetic field, in conjunction with gravity, are used by magnetic-survey tools to determine a wellbore's location. Magnetic field values may be obtained from global models that, depending on the model, have a wide range of spatial resolution at the Earth's surface from large scale (3000 km) to small scale (28 km). The magnetic field varies continuously in both time and space, so no model can fully capture the complexity of all sources; hence, there are uncertainties associated with the values provided. The SPE Wellbore Positioning Technical Section/Industry Steering Committee on Wellbore Surveying Accuracy (ISCWSA) published their original measurement-while-drilling (MWD) error model in 2000. Such models and uncertainties define positional error ellipsoids along the wellbore, which assist the driller in achieving their geological target, in addition to aiding collision avoidance. With the recent update to Revision 5 of the ISCWSA error model, we have reassessed the uncertainties associated with our latest high-resolution global magnetic field model.

We describe the derivation of location-specific global and random uncertainties for use with predicted geomagnetic values from high-resolution models within magnetic MWD survey-tool-error models. We propose a sophisticated approach to provide realistic values at different locations around the globe; for example, we determine separate errors for regions where the models have high spatial resolution from aeromagnetic data compared to regions where only satellite data are available.

The combined uncertainties are freely available via a web service with which the user can also see how they vary with time. The use of the revised uncertainty values in the MWD-error model, in most cases, reduces the positional error ellipsoids and allows better use of the increased accuracy from recent improvements in geomagnetic modeling. This is demonstrated using the new uncertainty values in the MWD-error model for three standard ISCWSA well profiles. A fourth theoretical well offshore Brazil where the vertical magnetic field is weak shows that with drillstring interference correction relying on the more uncertain magnetic dip, the positional error ellipsoids can increase. This is clearly of concern for attaining geological targets and collision avoidance.
A Cost Effective, Fit-for-Purpose Single Well Producer-Injector Completion Strategy for Improved Recovery of Oil: Case Study in Niger Delta
Authors: Dubey Pranav , Okpere Adrian , Sanni Gideon , Onyeukwu Ifeanyi
Published: February 2021

An optimized completion design that addresses gaps in the existing single well Producer-Injector (P-I) concept is presented in this paper. Field development scenarios based on the optimized P-I concept and conventional waterflood were implemented in full-field 3D simulation models.

Detailed review of the existing single P-I well concept revealed gaps in the completion design with regards to feasibility of data acquisition, ease of well intervention and well safety/control. The existing design utilizes a Single-String-Single (SSS) design with through-tubing water injection and oil production through annulus, whilst the optimized design is a Two-String-Dual (TSD) incorporating the flexibility of independent injection/production, zonal isolation for interventions & data acquisition and additional safety completion jewelries.

A fit-for-purpose reservoir candidate was selected by assessing it's suitability to waterflooding. The reservoir belongs to the paralic sequence of the Agbada Formation of the Niger Delta basin – a sequence of interbedded sandstones and shales. The reservoir is an elongated anticline bounded by W-E oriented faults and exhibiting channelized shoreface sediments. Porosity and permeability ranges are 17-31% and 200mD-2200mD respectively. Shale baffles strongly reduces the influence of the aquifer hence the simulation model is an oil reservoir with weak aquifer completed by the P-I well producing oil and injecting into the aquifer in tandem. Performance of the single P-I well strategy was benchmarked against conventional waterflood patterns to effectively capture the recovery efficiency and production forecast for each scenario.

Results from the five-parameter experimental design based on the P-I strategy, indicate Ultimate Oil Recovery is most impacted by horizontal permeability; injection rate, flow barrier transmissibility and vertical permeability with the least influence. Dynamic 3D water saturation maps show the waterflood front propagating principally in the horizontal direction from the injector, providing important reservoir boundary pressure support and minimizing the chance for injected water short-circuiting at the sandface.

Ultimate Oil Recovery of 5spot/line drive patterns and the P-I strategy were similar, 54% and 52% respectively. Well completion costs and forecasts were fed into simple economics spreadsheet to test which technique provides the most value. Open book economics results showed the P-I concept provides better value (NPV 23.0 and VIR 0.67) than 5 spot and line drive patterns (NPV-17 and VIR-0.14).
Water Influx Predictions in Reservoirs with Aquifer Drive Using the Two-Phase Reservoir Integral Type Pseudo-Pressure with Applicability in Gas Hydrate Reservoirs
Authors: Kome Melvin , Amro Mohd
Published: February 2021

The application of the Kirchhoff transformation has proven to be a very effective tool in simplifying and solving complex diffusivity equations in reservoirs. Since its introduction by [1] in addressing the non-linear behavior of compressible fluids, it has seen many modifications and implementations in multiphase systems, from the Perrine type pseudo-pressure to the reservoir integral type pseudo-pressure also called the Mass balance Model (MBM) for pseudo-pressure as discussed by [2]. Its applicability in addressing water influx from aquifers to oil and gas reservoirs has as of now not been addressed. Moreover, the models developed so far to address water influx such as the works of [3], [4], [5], have many limitations, such as imposing constant pressure at the reservoir–aquifer interface, single phase model used, no analytical approach of predicting excessive water cuts.

In this paper, the MBM pseudo-pressure is used to address water influx in reservoirs with two-phase flow (Gas/Water or Oil/Water). The model response is derived by developing diffusivity equations for the composite reservoir system to address the communication between the hydrocarbon reservoir and the aquifer. The non-homogenous nature of the diffusivity equation of each phase makes the derivation of the solutions to the equations cumbersome. Nonetheless, the reservoir integral type pseudo-pressure being a very powerful, can be incorporated in the diffusivity equations of the phases and solutions to the models can rigorously be derived. Defining the boundary conditions for each phase is very crucial as the hydrocarbons in the hydrocarbon reservoir depict a no-flow boundary at the aquifer interface, whereas the water phase and the total system response of the hydrocarbon reservoir depict mass conservation at the hydrocarbon reservoir-aquifer interface.

Using this approach, the solutions to the phases in the hydrocarbon and aquifer are readily obtained and its applicability in gas hydrate reservoirs highlighted. The effects of the water influx from the aquifer are clearly seen with increasing water cut at the sandface. The effects of different outer boundary conditions in the aquifer are investigated.

The novel approach introduced in this work will help tremendously to improve the characterization of the reservoir with multiphase flow, mostly especially for reservoirs with aquifer drive.
The Greater Etom Area (GEA): A New Phase of Exploration in the South Lokichar Basin, Turkana County, Northern Kenya
Authors: Christopherson Kevin
Published: February 2021

East Africa is an integral part of the Tullow business. Tullow has been active for over ten years in the onshore rift basins of East Africa, which began with the opening of the Uganda Lake Albert Rift Basin in 2006 following the drilling of Mputa-1. We developed multiple sub-surface evaluation tools and an understanding on how rift success factors can combine during the drilling of the Lake Albert Basin that we then applied to the Tertiary rifts of Kenya. Extensive Full Tensor Gradiometry (FTG), seismic and drilling has taken place over the last five years in Kenya. This has established the South Lokichar basin as a significant oil basin with significant remaining exploration upside.

Up until 2015 exploration drilling in the South Lokichar utilized 2D seismic data. The acquisition of 3D seismic in the north and west of the basin has allowed an improved definition of the structural framework and highlighted additional exploration potential. The Etom-2 well spud in November 2015 highlights the value of this 3D seismic in complex structural settings. Etom-1 was planned and drilled on 2D seismic and encountered 10 m of oil pay. Subsequent re-mapping based upon the 3D seismic revealed that the Etom structure was more complicated than originally interpreted and that Etom-1 had drilled into a collapse graben and not tested the structural crest of the field. Etom-2 targeted the up-thrown northern fault block which was not penetrated by the Etom-1 well and encountered 102 m of oil pay. The northern part of the South Lokichar basin is structurally complex and the 3D seismic provided the required detail to highlight that Etom-1 hadn't properly tested the Etom structure. Further mapping of the 3D seismic in the area around Etom-2 has identified multiple follow-up prospects that could be part of a new play domain in the northern part of the South Lokichar Basin. These targets are the focus for Exploration drilling that is due to commence in Q4 2016.