bluuebunny/crossref_metadata_2025 huggingface dataset:
Feeding Difficulties in Children with Cerebral Palsy: Prevalence and Risk Factor
Authors: Nur F T , Handryastuti S , Poesponegoro H D
Published: March 2019

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Impact of Centella Asiatica Extract on Memory and Adrenal Weight after Chronic Stress on Spraque Dawley rats
Authors: Wiyono N , Wasita B , . Muthmainah , Handayani S
Published: March 2019

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A Qualitative Study About Multidrug-Resistant Acinetobacter baumannii (MDRAB) in Healthcare-Associated Infection (HCAI) and Its Resistance Towards Carbapenem in Indonesia
Authors: Primaningtyas W , Putri A , Saptawati L , Sudarsono J , Cheng C , Rouzeus K , Muntean C
Published: March 2019

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Stimulation of the Gut Immune System in Neonatal Wistar Rats Using Tahneeq and or Breastmilk
Authors: . Susilorini , . Suradi , Indarto D , Wasita B
Published: March 2019

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Sodium Imbalance and Mortality Rate in Septic Patients
Authors: Otniel W , Dian A
Published: March 2019

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Exploiting Third Language Production Corpora for Pedagogical Purposes
Authors: Laily Zen E , Nurisnaini A
Published: March 2019

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Using Sensory Detail Chart in Collaborative Experiential Learning to Increase Quality of Students’ Descriptive Writing
Authors: Marpaung T , Hambandima E S N
Published: March 2019

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Choose a Corner Strategy and 21st Century Skills in Argumentative Writing
Authors: Putu Dian Sawitri N L
Published: March 2019

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Coping the Academic Stress: The Way the Students Dealing with Stress
Authors: Aina Q , Hermilia Wijayati P
Published: March 2019

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Incorporating Ethnopoetic in English As a Foreign Language (EFL) Classroom
Authors: . Khoiriyah
Published: March 2019

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Empowerment of Literary Works As a Medium of Learning BIPA
Authors: Karim Wirawan A
Published: March 2019

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Song Translation: A Strategy to Teach Translation for Young Learners
Authors: Apriyanti C
Published: March 2019

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Reading While Listening (RWL) in an Extensive Listening Course to Reduce Student Teachers’ Foreign Language Listening Anxiety (FLLA)
Authors: Ranto Rozak R , Saleh M , Linggar Bharati D A , Sutopo D
Published: March 2019

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Youtube As Innovation in Teaching Words Equivalent of Bahasa Indonesia
Authors: Wirahyuni K
Published: March 2019

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The Myth of Prayer Etiquette at Pebini Temple in Catur Kintamani: Structure, Meaning, and Social Function
Authors: Putu Yuni Krisnayanthi N L , Diana Erfiani N M , Chris Susanto P
Published: March 2019

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Teaching Material Development of Bahasa Indonesia Course as a Way to Develop the Lectures’ Professional Development
Authors: Ulfah A , . Jumaiyah
Published: March 2019

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Financial Literacy: An Empirical Study from Small–Medium Enterprises in Sidoarjo, East Java
Authors: Nugraha J , Suratman B , Sriwulandari S , Pahlevi T , Gita Miranti M
Published: March 2019

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Turnaround Strategy of Financially Distressed Company: Empirical Study of Manufacturing Company Listed on Indonesia Stock Exchange
Authors: Venusita L , Nur Wijayanti M
Published: March 2019

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Effectiveness of Project-based Learning Models to Improve Learning Outcomes and Learning Activities of Students in Innovative Learning
Authors: . Susanti , Susilowibowo J , Tantri Hardini H
Published: March 2019

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The Implementation of Corporate Governance Through Self-assessment in Increasing Liquidity of East Java Regional Development Bank
Authors: Wuryani E , Puspasari D , Puspasari D
Published: March 2019

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The Levers of Management Control System in Organizational Life Cycle
Authors: Elsye Hatane S , Gabrielle L , Febe Angelina S
Published: March 2019

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The Analysis of Auditor Opinion After Financial Crisis
Authors: . Devie , Ellen A , Angelina C , Fenella J
Published: March 2019

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The Effect of Perception of Justice Remuneration and Organizational Commitment Toward the Performance of Blu University in Inspectorate Region II
Authors: Prastiwi D
Published: March 2019

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Teachers’ Perception on Classroom Action Research
Authors: Wulandari D , Shandy Narmaditya B , Hadi Utomo S , Hilmi Prayi P
Published: March 2019

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The Implementation of Islamic Governance Disclosure: An Empirical Study of Indonesian Islamic Banking
Authors: Wahyudin A , . Fachrurrozie , Nurkhin A , Yoga Baswara S
Published: March 2019

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Impact of Field Experience on Pedagogical Competence of Economic Education Students
Authors: Mahmud M , Moonti U , Rahmat A
Published: March 2019

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Disruption Era, Do Students Have Its Competencies? The Case of Indonesia
Authors: Syariati D , . Kholilah , Wafaretta V , Mentari S
Published: March 2019

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SMEs Financial Report: Between Quality and Access to Bank Credit
Authors: Iswoyo A , Ermawati Y , Nugroho A
Published: March 2019

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Sustainability Indicators Sanitation Eco Village of Waste Bank: Case Study in Jakarta
Authors: Takidah E , Susanti S , Fauzi A
Published: March 2019

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Capital Buffer in Indonesia: Do Adjustment Cost and Business Cycle Matter?
Authors: Tasman A , Fitra H , Helmayunita N , Amelia Susanti F
Published: March 2019

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The Mapping of Corporate Social Responsibility (CSR) Implementation Model Activities in East Java
Authors: Murdiono A , Shabrina Prameka A , Hermawan A , Hariri AP A , Hadi Wira Prabowo S
Published: March 2019

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Improving Learning Quality Through NHT Cooperation Model in Indonesian Vocational Schools
Authors: Listiadi A , Sulistyowati R , Canda Sakti N
Published: March 2019

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Food Security for Communities Around the Forest in Alleviating Poverty
Authors: Mukhlis I
Published: March 2019

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Social Capital and Community Business Development
Authors: Topas Baruna Putra N , Wulandari D , Shandy Narmaditya B
Published: March 2019

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The Role of Business Simulator Games Implementation in Improving the Ability of Analysis and Business Decision Making Independently for Students (Literature Research)
Authors: Pratikto H , Wira Prabowo S H , Murdiono A , Basuki A
Published: March 2019

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Relationship Between the Selected Factors with Entrepreneurial Career Aspirations Among Students of Community Colleges in Malaysia
Authors: Seng Te T , Abdullah A , Rashid Mat A
Published: March 2019

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Design and Development of Student Admission System in the State University of Jakarta
Authors: Fissalma H , Ajie H
Published: March 2019

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Need Analysis to Develop Anti-Corruption Behavior of Early Childhood Through Parenting Education Model
Authors: Hasanah U , . Tarma
Published: March 2019

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The Influence of Combination of Castor Oil with Aquades on Increasing Moisture over a Dry Skin
Authors: Hidayah N , Supiani T
Published: March 2019

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The Effect of Learning Strategies on Mathematics Learning Outcomes at Bekasi State Vocational High School 7
Authors: Setyowati A , Syahrial Z , Nomida Musnir D
Published: March 2019

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Identification of Young Women’s Nutrition and Reproductive Knowledge in Making Video on Community-based Learning
Authors: Devi Artanti G , Febriana R , . Rusilanti
Published: March 2019

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Development of Web-based Information System for Universitas Negeri Jakarta
Authors: Wibowo Yunanto P , Nurhidayat D , Wicaksono R
Published: March 2019

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Color Blindness Test By Ishihara Method Based on Microcontroller System
Authors: Suparyadi D , Yusro M , Yuliatmojo P
Published: March 2019

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The Innovation of Purple Sweet Potato Noodle Processing (Test of Sensory Quality Analysis)
Authors: . Mahdiyah
Published: March 2019

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The Importance of ICT for Office Administration in Millennial Era
Authors: Zain N , Eryanto H , . Marsofiyati
Published: March 2019

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A Proposed Model of Metamaterial Complementary Split- Ring Resonator to Reduce Microstrip Array Antenna Dimension
Authors: Sandi E , Putri R , Diamah A
Published: March 2019

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Portion Improvement of Vehicle Entry Units Through The Improvement of Express Periodic Maintenance Service Methods in Cars Workshop
Authors: Kholil A , Amaningsih Jumhur A , Rahadi S
Published: March 2019

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Analysis Compressive Strength of Solid Waste Recycling Battery As a Partially Replacing Sand in Concrete
Authors: . Prihantono , . Anisah , Adi Sambowo K
Published: March 2019

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Analysis of Work Safety and Health Risk Management Qualitatives in Reducing Construction Project Cost Overruns
Authors: . Anisah , . Prihantono , Mulyono T
Published: March 2019

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Development of Android-Based Elin Game As Learning Media for Industrial Electronics
Authors: Sukardjo M , Oktaviani V
Published: March 2019

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Spinal malignant triton tumor in a patient with neurofibromatosis type 1
Authors: KULAKLI Sevgi , KULAKLI Fazıl , SARI İlker Fatih , TATLI Samet , İLHANLI İlker , ÇELİK Canan
Published: March 2019

No abstract available.
“The Typical Ghadar Outlook”: Udham Singh, Diaspora Radicalism, and Punjabi Anticolonialism in Britain (1938-1947)
Authors: Webb Silas
Published: March 2019

Punjabis in interwar Britain, who had migrated for economic opportunity but had been politicized during successive upheavals at home, admired Ghadar’s radical solidarities with nationalist and anticolonial movements. This article focuses on peripatetic Punjabi radicals, often working as pedlars and sailors, to enhance the current understanding of the vibrant relationship between the Ghadar Party and Punjabis in Britain. This article contextualizes Udham Singh’s martyrdom by examining the uses to which his name and image were put in radical publications. Furthermore, the Indian Workers’ Association, formed in the midst of the Second World War, was integral to articulating a Ghadarite anticolonialism in Britain, which was animated by the trial and memorialization of Udham Singh. Thus, this article argues that labor migration and the global transmission of Ghadar Party publications was integral to the Ghadar movement’s influence on the struggle against imperialism in Britain in the 1930s and 1940s.
The Conceptual World of the Ghadarites
Authors: D'Souza Radha
Published: March 2019

The Ghadar movement is framed by scholars variously as socialist or proto-communist, anarchist, secular or religious nationalist. These theoretical frames developed in the European historical contexts to oppose liberalism and modernism. Framing historical experiences of colonialism and resistance to it by using theories developed in radically different conditions of European capitalism and Enlightenment, disrupts history-writing and the historical consciousness of people in the Third World.  This paper examines the historical consciousness that guided Ghadar resistance to colonial rule. How are we to understand the distinction between system and ‘lifeworld’ that Jurgen Habermas makes in a context where the ‘system’ is capitalist /imperialist/ modernist and the ‘lifeworld’ is South Asian/ Indian Enlightenment/ colonial? What was the ‘lifeworld’ of the Ghadar leaders that informed their understanding of nationalism and state, secularism and religion, liberation and justice? Theories contribute to creating historical consciousness and identity by showing us a view of the world that we can identify with, by providing a sense of continuity with the past. Disruption of South Asia’s historical consciousness has had profound consequences for the people of the subcontinent. This paper locates the Ghadar movement in the structural transformations of South Asia after the end of the First War of Independence in 1857 known as the Great Ghadar. The paper takes common theoretical lenses used to analyse the Ghadar movement in academic scholarship: secular and ethno-religious nationalism, anarchism and socialism as its point of departure to sketch the theoretical and philosophical routes through which Ghadar leaders arrived at comparable values and political positions. It shows how they could be secular, religious, anarchist and socialist simultaneously. The Ghadar movement is important because it is the last major resistance movement that saw South Asia through South Asian lenses and attempted to address problems of colonialism and national independence in ways that was consistent with Indian historical consciousness and cultural and intellectual traditions.
Ghadar Special Issue
Authors: Rein Sandra
Published: March 2019

Frontmatter for the Special Issue
John Atkinson Grimshaw
Authors: Tejedor Estupiñan Ricardo Alonso
Published: March 2019

Fue el tercero de seis hijos del policía David Grimshaw y su esposa Mary Atkinson. Nació en la ciudad de Leeds, la cual fue en sus albores un sitio comercial especializado en lanas. Las líneas del ferrocarril llegaron a esta ciudad en 1848, por lo cual empezaría a modernizarse rápidamente, para pronto convertirse en una de las más importantes en la segunda etapa de la revolución industrial inglesa, siendo actualmente,  después de Londres y Manchester la tercera más grande en población, en donde su producto se destaca por los servicios de negocios, financieros y legales.

Muy poco se conoce de su vida personal, lo que ha dificultado hacer una semblanza  del artista. Se cree que fue autodidacta y, según las fechas de sus obras y dibujos, se estima que inició a pintar hacia 1850, en plena época victoriana.
PSIHOLOŠKO, TELESNO I SOCIJALNO BLAGOSTANJE STARIH OSOBA NAKON GUBITKA SUPRUŽNIKA
Authors: Krstić Joksimović Kristina , Lazić Milica , Gavrilov- Jerković Vesna , Jovanović Veljko , Rakočević Nikolija
Published: March 2019

Cilj ovog istraživanja je ispitivanje psihofizičkog i socijalnog blagostanja starih osoba nakon nedavnog gubitka supružnika. Istraživanje blagostanja starih ožalošćenih je sprovedeno poređenjem grupe tugujućih (64 ispitanika) i netugujućih starih osoba (104 ispitanika). Starost ispitanika obe grupe kretala se od 65 do 89 godina. Dobijeni rezultati potvrđuju postojanje značajnih razlika u nivou većine ispitivanih indikatora blagostanja. Razlike su uglavnom male do srednje veličine efekta. Stare osobe koje su u protekla dva do tri meseca izgubile supružnike ispoljavaju očekivano niže zadovoljstvo životom i niži doživljaj smisla života, kao i više vrednosti negativnog i niži stepen pozitivnog afekta u poređenju sa ispitanicima u bračnom odnosu. Dodatno, tugujuće osobe izveštavaju o većem doživljaju usamljenosti, uprkos snažnije percipiranoj dostupnosti instrumentalne podrške. Suprotno očekivanjima proisteklim iz nekih ranijih nalaza, razlike između tugujućih i netugujućih ispitanika nisu registrovane u pogledu stepena emocionalnog distresa i percipiranog zdravstvenog statusa. Takođe, ove dve grupe ispitanika se ne razlikuju po nivou rezilijentnosti i percipirane emocionalne podrške, dok se razlike pojavljuju u nivou funkcionalnog statusa. Tugujući ispitanici se pokazuju kao funkcionalno nezavisniji od netugujućih. Polne razlike u grupi tugujućih ispitanika utvrđene su samo u slučaju negativnog afekta, koji je u većoj meri zastupljen kod udovica. Uopšteno, dobijeni rezultati su u većem delu u skladu sa ranijim istraživanjima, ali delimično ukazuju i na izvesne specifičnosti koje moguće proističu iz nekih karakteristika tugovanja i starenja u našoj kulturi.
A resource approach towards examining territorial communities
Authors: Drozdova Julia A.
Published: March 2019

Within the context of conditions for the existence, activity and development prospects of a region’s territorial communities, a resource approach is something of particular significance. A region’s development depends on the participation of city dwellers and villagers, these being the main territorial communities, in processes such as modernization and the social development of territories. From the author’s perspective, the future of any given region is determined by social resources bearing a space-time nature, which include the quantitative and qualitative composition of the population (human resources), human and social capital, eventfulness, and social activism. The social resources of territorial communities are one of the important basic components for fulfilling the domestic demands of the population: life-supporting, existential; the demand for solidarity connections, national-ethnical, labor, leisure, educational and cultural relations; as well as self-fulfillment and self-actualization. This article’s author notes that the social resources of territorial communities provide external communication with other communities and territories, defining the competitive capacity and investment appeal of any given region, as well as the qualitative and quantitative composition of migration flow. What makes social resources, which can be defined as a product of people collaborating and cooperating, unique in comparison to material resources, according the author of this article, is down to such properties as the ability to capitalize and constantly reproduce, replenish as a result of the development of territorial communities, the advancement of forms of governance and self-management, shifts in people’s social qualities during the process of socialization, education, self-education and self-fulfillment on a certain territory. The sociological-managerial approach’s “new agenda” consists of proactive creation, development and advancement of social resources, while keeping them within a certain territory. A region’s social resources ensure its stable operation and advancement as a socio-economical and communicative system, existing within a certain space-time continuum. A multitude of differences in the existence of territorial communities, on the one hand, and the reduction of the uniqueness, individuality and manners of cultural consumption, social interests and relations under the influence of globalization on the other hand – this all indicates the emergence of a new scenario, new opportunities and limitations in terms of regional development. These social transformational processes are in need of sociological introspection in order to define the trajectory for the development of Russian regions, to examine collaboration between urban and rural social communities within the context of a single regional system, and to improve social management.
The issue of social inequality in terms of health: a comparative study of Russia within the European context
Authors: Rusinova Nina L. , Safronov Viacheslav V.
Published: March 2019

This article examines the issue of social inequality in terms of health, while citing the main results of an empirical study on the matter, which have been attained by means of analyzing data from the European social survey (ESS) for a few dozen countries, including Russia, together with statistical information on the state of their economy and welfare, utilizing a two-level linear and logistic modeling method. In different parts of Europe indexes of general wellbeing and the risk of developing depression differ quite drastically – in Russia, as is the case with most other relatively underdeveloped nations, the population’s health is markedly worse than in the most of the highly developed social democracies. These indexes significantly differ within the country as well – among people who occupy unequal positions within demographical and social structures. A natural discrepancy in health between elder and younger age groups is especially pronounced in underdeveloped countries, while in nations with a high level of prosperity and state social guarantees these age-related discrepancies are more or less evened out. Social capital and an individual’s mental strength play a crucial role in maintaining good health. Possessing psychosocial resources is beneficial to the health of those belonging to any given social stratum. However, in developed European countries this is mostly beneficial to the more vulnerable groups of lower social status. In developed European countries the health of said groups is negatively affected in no small part due to them experiencing relative deprivation, and the stress of social comparison to the prosperous majority. So this is not only due to a shortage of material resources or their limited access to high-quality medical services, as is the case in Russia and in underdeveloped European states. In well developed countries individual reserves and social bonds are especially important for the lower strata, in order for them to successfully overcome the negative impact of such strain on their health.
Monitoring of conductive hearing loss due to because of eustachian tube dysfunction preservative treated with the Otovent pneumotherapy method.
Authors: Nowak Małgorzata , Wolnowska Beata , Sekula Alicja
Published: March 2019

INTRODUCTION. A conductive hearing loss is a very common problem in childhood. It is possible to indicate many reasons for the problem, but most of the times it is caused by the infectious process, as well as the typical adenoid hypertrophy in children. Very often this disease is associated with obstruction of the eustachian tube.OBJECTIVE. In this study, the authors present the results of the hearing tests of patients who underwent the treatment of  the eustachian tube obstruction by pneumotherapy with otovent. The aim of the work was to monitor the effectiveness of this method of OME treatment.RESEARCH GROUP AND METHODOLOGY. The research group consisted of 54 children aged 4 to 15 years, including 23 girls and 31 boys. The control group consisted of 16 children. Pure tone audiometry and impedance audiometry were performed before and after the therapy, for all of the participants.RESULTS. Obtained results of the study showed improvement in hearing in children correctly using the Otovent set. Hearing improvement was recorded both in the results of pure tone audiometry and impedance audiometry.CONCLUSIONS. The obtained results showed the effectiveness of the pneumotherapy method. In the case of the research group, 81.4% of children achieved the auditory norm (44 people). In the case of the control group, after a fixed period of application of the Otovent set, this value was 0%. The intergroup comparative analysis clearly shows that the research group obtained significantly better results within all of the parameters assessed, than the control group.
Bicompartmental locked bucket-handle tears of menisci concealing the concomitant anterior cruciate ligament injury for 2 years - a case report.
Authors: Zabrzynski Jan , Szwedowski Dawid , Zabrzyńska Agnieszka , Łapaj Łukasz
Published: March 2019

Locked bucket-handle tears of both medial and lateral menisci, called in literature "Jack and Jill lesion", with simultaneous anterior cruciate ligament (ACL) injury is an extremely unusual phenomenon. It was reported only in a few cases in literature, which were unfortunately highly differentiated in the field of trauma mechanism, treatment options and postoperative care. Authors presented a clinical case of patient with a locked knee joint, by the torn both menisci, what masked the simultaneous ACL rupture and supremely imitated a stable joint. The locked knee is a clinical case demanding the urgent intervention to prevent further damages to the joint structures. Surprisingly, the patient after locking of the menisci and migration of their inner fragments to the intercondylar notch, started to feel the affected joint stabile and dismissed from the further treatment for next 2 years. Complex trauma needs a complex treatment, and a single-stage or multi-stage surgical approach is performed. Authors chose a two-steps surgical procedure with primary meniscal repair and secondary, early ACL reconstruction.
Acid steatocrit in the first 2 years of life: diagnostic accuracy and reference limits
Authors: Wieczorek-Filipiak Mirosława , Drzymała-Czyż Sławomira , Walkowiak Dariusz , Szydłowski Jarosław , Miśkiewicz-Chotnicka Anna , Szajstek Zuzanna , Moczko Jerzy , Walkowiak Jarosław
Published: March 2019

Introduction. The measurement of acid steatocrit (AS) is an established method to assess faecal fat balance. However, data regarding AS in healthy infants and toddlers are sparse. Aim. This study aimed to determine the range of normal values for AS in the first two years of life and evaluate the correlations with other faecal fat balance tests.Material and Methods. AS (%) was assessed by 72-hour stool collection in 160 children aged 1–24 months (8 groups of 20: aged 1–3, 4–6 months, etc.).Results. AS was higher in infants < 6 months than in those aged 7–12, 13–18 and 19–24 months (p < 0.05, p < 0.001 and p < 0.001, respectively). The correlations between AS and age and faecal fat concentration (FFC) were statistically significant, but moderate or weak (r = -0.48, p < 0.0001; r = 0.28, p < 0.001, respectively). A 90th/95th percentile nomogram of AS was created based on these results, with values ranging from 23.6/23.9% at 1 month to 12.1/12.9% at 24 months. Conclusions. Healthy infants have a significantly higher AS than older children. For this reason, we propose an upper limits nomogram, providing detailed reference values for infants and children in their first two years of life. However, it should be noted that AS does not reflect adequately FFE and FFC in this population.
Spirometry in selected clinical situations
Authors: Szczechowiak Piotr , Piorunek Tomasz
Published: March 2019

Spirometry is the most frequently performed functional test of the respiratory system. In pulmonological practice it is a basic tool used to diagnose ventilation disorders and to monitor treatment. The results obtained during the test are compared to predicted values, that is, assumed parameter values, computed on the basis of anthropometrical data such as: age, gender and height, with the use of complex equations.  The use of additional variables including, e.g. an ethnic group or a race as well as corrective factors, enables a more exact determination of their values. Spirometry can be conducted in a sitting or standing position; however, for the subject safety reasons it is usually performed in a sitting position. It allows to eliminate the risk of fall as a result of syncope or impaired balance. Spirometry in a standing position should be considered in measurably obese patients or in patients with a wide abdominal circumference caused by other reasons. Patients with normal body weight obtain equivalent or slightly higher spirometric values in a standing position. In the selected clinical situations some problems with the measurement of the actual hight of patients in a standard way (measurement without shoes, feet together, upright position, eyes straight ahead) and with correct calculation of predicted values occur. They are, among others, silhouette-disturbing disorders or diseases causing changes in body proportions, from the less often occurring, like Marfan syndrome or achondroplasia, to more frequent posture defects and mobility impairments. These diseases influence the change of the predictive functional parameter values which are used to compare with the obtained results. The aim of the study is to demonstrate the methods of height and predicted values determination on the basis of measurements of ranges between different body points with the use of simple and complex equations in a group of patients in whom the application of standard measurement methods is impossible.
Effect of Introgression of Pup1 Locus on Rice Seedling under Phosphorus Deficiency
Authors: Hidayatun Nurul , Prasetiyono Joko
Published: March 2019

The lack of soil-phosphorus (P) element will result in plant growth retardation. Plants could survive in P deficiency stress by increasing the ability of P uptake or by increasing the efficiency in the P utilization. The aims of this study were to understand genetic composition of rice genotypes possessing Pup1 locus and to know root and leaf growth responses at different P availability condition. The three rice genotypes (IR74, IR74-Pup1, and Kasalath) were analyzed for their genetic composition using SNP markers. The phenotypic experiment was arranged using a Completely Randomized Design with four replications and performed hydroponically in nutrient solution with different availability of P. The result showed that IR74-Pup1 had 84.4% similarities to its parent (IR74) with 13.6% of donor segments, where the Pup1 locus located. The influence of Pup1 locus
introgression on total length, surface area, diameter, and volume of the root varied at each growth stage. IR74 and IR74-Pup1 had root and leaf growth restriction on low P, but Pup1 locus introgression showed better growth performance, both in normal P and in low P conditions. The introgression of Pup1 locus increases plant ability to reduce the impact of growth inhibition
caused by P deficiency. 
An Integrated Carbon-Dioxide-Foam Enhanced-Oil-Recovery Pilot Program With Combined Carbon Capture, Utilization, and Storage in an Onshore Texas Heterogeneous Carbonate Field
Authors: Alcorn Z. P. , Fredriksen S. B. , Sharma M.. , Rognmo A. U. , Føyen T. L. , Fernø M. A. , Graue A..
Published: March 2019

A carbon–dioxide (CO2) –foam enhanced–oil–recovery (EOR) field pilot research program has been started to advance the technology of CO2 foam for mobility control in a heterogeneous carbonate reservoir. Increased oil recovery with associated anthropogenic–CO2 storage is a promising technology for mitigating global warming as part of carbon capture, utilization, and storage (CCUS). Previous field tests with CO2 foam report various results because of injectivity problems and the difficulty of attributing fluid displacement specifically to CO2 foam. Thus, a comprehensive integrated multiscale methodology is required for project design to better link laboratory– and field–scale displacement mechanisms. This study presents an integrated upscaling approach for designing a miscible CO2–foam field trial, including pilot–well–selection criteria and laboratory corefloods combined with reservoir–scale simulation to offer recommendations for the injection of alternating slugs of surfactant solution and CO2, or surfactant–alternating–gas (SAG) injection, while assessing CO2–storage potential.

Laboratory investigations include dynamic aging, foam–stability scans, CO2–foam EOR corefloods with associated CO2 storage, and unsteady–state CO2/water endpoint relative permeability measurements. Tertiary CO2–foam EOR corefloods at oil–wet conditions result in a total recovery factor of 80% of original oil in place (OOIP), with an incremental recovery of 30% of OOIP by CO2 foam after waterflooding. Stable CO2 foam, using aqueous surfactants with a gas fraction of 0.70, provided mobility–reduction factors (MRFs) up to 340 compared with pure–CO2 injection at reservoir conditions. Oil recovery, gas–mobility reduction, producing–gas/oil ratio (GOR), and CO2 utilization at field pilot scale were investigated with a validated numerical model. Simulation studies show the effectiveness of foam to reduce gas mobility, improve CO2 utilization, and decrease GOR.
Artificial Neural Network Modeling of Compaction-Dilation Data for Unconventional Oil Reservoirs
Authors: Fedutenko Eugene , Nghiem Long , Yang Chaodong , Chen Tong , Seifi Mojtaba
Published: March 2019

The incorporation of geomechanical effects into the flow simulation is crucial for accurate modeling of unconventional hydraulic fracture systems. Such an incorporation requires a proper construction of stress and pressure dependent permeability/porosity distribution for the whole reservoir domain. Usually this is accomplished by the generation of the correspondent multipliers for porosity and permeability under the assumption of exponential and power law correlations. This task can become complicated for sandstones that display non-linear and inelastic behavior such as hysteresis when subjected to cyclic loading, as it involves many parameters including different moduli for loading and unloading introduced as best fit for experimental values.

We propose a novel Machine Learning approach to this problem based on Multi-Layer Neural Network (MLNN) Modeling of hysteresis nonlinearity caused by Elastic, Dilation, and Compaction compressibility term. MLNN considers the experimentally obtained pressure dependency of permeability and/or porosity for Elastic, Dilation and Maximum Compaction as its training data. After the Network is trained it is used to predict the multiplier curve for any intermediate (i.e. low, middle, and high) compactions. This is accomplished by MLNN hysteresis function which considers the curve forecast as a pattern identification problem. Such an approach is often used for modeling of hysteresis in piezo-actuators and magnetic systems, however it has never been applied to geomechanical modeling before. This paper modifies the classical MLNN in the way that it exactly matches the training data, i.e. honors the boundary conditions for dilation-compaction hysteresis. A history match of a couple of field examples indicate that the proposed model provides a good match with production data.
Dynamic Modeling and Design Optimization of Cyclonic Autonomous Inflow Control Devices
Authors: Gurses Sule , Chochua Gocha , Rudic Aleksandar , Kumar Amrendra
Published: March 2019

Autonomous inflow control devices (AICDs) have recently been introduced in the petroleum industry to restrict the production of unwanted fluids, namely water and gas, much more effectively than conventional inflow control devices (ICDs). As with ICDs, AICDs are installed downhole along the completion string to first delay water/gas coning and then restrict their influx, without well intervention, if/when coning such occurs. Unlike ICDs, AICDs selectively choke back water and gas significantly more so than oil.

A novel cyclonic AICD was recently developed using computational fluid dynamics (CFD) driven design optimization. The cyclonic AICD's unique internal geometry increases the flow resistance to unwanted fluids based on how their viscosities and densities differ from oil, as initially predicted using CFD and subsequently validated by extensive, carefully controlled single- and two-phase flow tests. The resulting excellent match obtained between CFD and such laboratory tests yielded accurate mathematical models for predicting flow performance over a broad range of flow rates and oil, water and gas properties.

The flow performance models were then incorporated into a state-of-the-art dynamic reservoir simulator with multi-segmented wellbore capability to compare the production performance over time for the same well but completed with no ICDs, conventional ICDs, and cyclonic AICDs. A synthetic but realistic three- dimensional (3-D) reservoir model has used that allowed oil, gas and water production. Multiple sensitivity runs were initially performed to optimize the number of compartments using packers for annular isolation, and the number of ICDs per compartment. Once these parameters were optimized, only the ICD type was varied for performance comparison.

The results of this systematic, multi-step process, as presented herein, demonstrate that the cyclonic AICD adds significant value to the improvement of oil production by controlling unwanted fluids, such as water and gas, and by preserving the reservoir energy.
A Multiphysics Fully-Coupled Flow and Geomechanics Simulation System with Hydraulic-Fracturing Simulation Capability
Authors: Alpak Faruk O.
Published: March 2019

A modular multiphysics reservoir simulation system is developed that has the capability of simulating multiphase-multicomponent-thermal flow, poro-elasto-plastic geomechanics, and hydraulic-fracture evolution. The focus of the work is on the full-physics numerical hydraulic-fracture evolution simulation capability of the multiphysics simulation system. Fracture growth computations utilize a cohesive zone model as part of the computation of fracture propagation criterion. The cohesive zone concept is developed based on energy-release rates and cohesive stresses. They capture the strain-softening behavior of deforming porous material consistent with real-life observations of poro-plastic deformation. Thus, they can be reliably used within both poro-elastic and poro-plastic geomechanics applications unlike the conventional stress-intensity-factor-based fracture propagation criterion.

The partial differential equations that govern the Darcy-scale multiphase-multicomponent-thermal flow, poro-elasto-plastic geomechanics, hydraulic-fracture evolution, and laminar channel flow in the fracture are tightly coupled to each other to give rise to a numerical protocol solvable by the fully-implicit method. The ensuing nonlinear system of equations is solved by use of a novel adaptively damped Newton-Raphson method.

Example fully-coupled single-phase isothermal flow, geomechanics, and hydraulic-fracture growth simulations are analyzed to demonstrate the predictive power of the simulation system. Numerical model predictions of fracture length/radius and width are validated against analytical solutions for plane-strain and ellipsoid-shaped fractures, respectively. Results indicate that the simulator is capable of modeling hydraulic-fracture evolution accurately by use of the cohesive zone model as the propagation criterion. We also simulate and explore the sensitivities around a real-life hydraulic-fracture growth problem by fully accounting for the thermal, multiphase, and compositional flow effects.
Unconventional Reservoir Management Modeling Coupling Diffusive Zone/Phase Field Fracture Modeling and Fracture Probability Maps
Authors: Wheeler Mary F. , Srinivasan Sanjay , Lee Sanghyun , Singh Manik
Published: March 2019

Optimal design of hydraulic fractures is controlled by the distribution of natural fractures in the reservoir. Due to sparse information, there is uncertainty associated with the prediction of the natural fracture system. Our objective here is to: i) Quantify uncertainty associated with prediction of natural fractures using micro-seismic data and a Bayesian model selection approach, and ii) Use fracture probability maps to implement a finite element phase-field approach for modeling interactions of propagating fractures with natural fractures.

The proposed approach employs state-of-the-art numerical modeling of natural and hydraulic fractures using a diffusive adaptive finite element phase-field approach. The diffusive phase field is defined using the probability map describing the uncertainty in the spatial distribution of natural fractures. That probability map is computed using a model selection procedure that utilizes a suite of prior models for the natural fracture network and a fast proxy to quickly evaluate the forward seismic response corresponding to slip events along fractures. Employing indicator functions, diffusive fracture networks are generated utilizing an accurate computational adaptive mesh scheme based on a posteriori error estimators.

The coupled algorithm was validated with existing benchmark problems which include prototype computations with fracture propagation and reservoir flows in a highly heterogeneous reservoir with natural fractures. Implementation of a algorithm for computing fracture probability map based on synthetic micro-seismic data mimicking a Fort Worth basin data set reveals consistency between the interpreted fracture sets and those observed in the reference. Convergence of iterative solvers and numerical efficiencies of the methods were tested against different examples including field-scale problems. Results reveal that the interpretation of uncertainty pertaining to the presence of fractures and utilizing that uncertainty within the phase field approach to simulate the interactions between induced and natural fracture yields complex structures that include fracture branching, fracture hooking etc.

The novelty of this work lies in the efficient integration of the phase-field fracture propagation models to diffusive natural fracture networks with stochastic representation of uncertainty associated with the prediction of natural fractures in a reservoir. The presented method enables practicing engineers to design hydraulic fracturing treatment accounting for the uncertainty associated with the location and spatial variations in natural fractures. Together with efficient parallel implementation, our approach allows for cost-efficient approach to optimizing production processes in the field.
Non-Intrusive Reduced Order Modelling for Reconstruction of Saturation Distributions
Authors: Kostorz Wawrzyniec , Muggeridge Ann , Jackson Matthew , Moncorge Arthur
Published: March 2019

Two new Non-Intrusive Reduced Order Modelling approaches to estimate time varying, spatial distributions of variables from arbitrary unseen inputs are introduced. One is a generalization of an existing ‘dynamic’ approach which requires multiple surrogate evaluations to model the solutions at different time instances, the other is a ‘steady-state’ approach that evaluates all time instances simultaneously, reducing the local approximation error.

The ability of these approaches to estimate the water saturation distributions expected during a gas flood through a 2D, dipping reservoir is investigating for a range of unseen input parameters. The range of these parameters has been chosen so that a range of flow regimes will occur, from a gravity tongue to a viscous dominated Buckley-Leverett displacement. A number of practically relevant model error measures were employed as opposed to the standard L2 (Euclidean) norm. The influence of the number and the structure of training simulations for the model was also investigated, by employing two simple experimental design methods.

The results show that POD based NIROM approaches are prone to significant deviations from the true model. The main sources of error are due to the non-smooth variation of system responses in hyperspace and the transient nature of the flows as well as the underlying dimensionality reduction. Since the first two sources are properties of the physical system modelled it may be expected that similar problems are likely to arise independently of the interpolation method and the reduction process used.
Identifiability of Model Discrepancy Parameters in History Matching
Authors: Rammay Muzammil H. , Elsheikh Ahmed H. , Chen Yan
Published: March 2019

In this work, we investigate different approaches for history matching of imperfect reservoir models while accounting for model error. The first approach (base case scenario) relies on direct Bayesian inversion using iterative ensemble smoothing with annealing schedules without accounting for model error. In the second approach the residual, obtained after calibration, is used to iteratively update the covariance matrix of the total error, that is a combination of model error and data error. In the third approach, PCA-based error model is used to represent the model discrepancy during history matching. However, the prior for the PCA weights is quite subjective and is generally hard to define. Here the prior statistics of model error parameters are estimated using pairs of accurate and inaccurate models. The fourth approach, inspired from Köpke et al. (2017), relies on building an orthogonal basis for the error model misfit component, which is obtained from difference between PCA-based error model and corresponding actual realizations of prior error. The fifth approach is similar to third approach, however the additional covariance matrix of error model misfit is also computed from the prior model error statistics and added into the covariance matrix of the measurement error. The sixth approach, inspired from Oliver and Alfonzo (2018), is the combination of second and third approach, i.e. PCA-based error model is used along with the iterative update of the covariance matrix of the total error during history matching. Based on the results, we conclude that a good parameterization of the error model is needed in order to obtain good estimate of physical model parameters and to provide better predictions. In this study, the last three approaches (i.e. 4, 5, 6) outperform the others in terms of the quality of the estimated parameters and the prediction accuracy (reliability of the calibrated models).
Numerical and Experimental Analysis of Diffusion and Sorption Kinetics Effects in Marcellus Shale Gas Transport
Authors: Zhang Miao , Chakraborty Nirjhor , Karpyn Zuleima , Emami-Meybodi Hamid , Ayala Luis
Published: March 2019

Nano-scale pores and a dual storage mechanism shared between free and adsorbed gas make the transport behavior in shale gas reservoirs very different from conventional macropore reservoirs. This work explores a straightforward model for the gas transport behavior in shale nanopores, which couples sorption, diffusion, and sorbed-phase surface diffusion phenomena. The model combines two governing equations for free and sorbed gas phase transport processes in nanopores, respectively: a diffusion-based equation for free gas phase transport, and a surface-diffusion equation for the sorbed phase. Mass transfer between the two phases is quantified by kinetic models of sorption. The two governing equations are solved simultaneously using finite element methods (FEM). Model performance is successfully validated by closely matching density propagation profiles of a gas transport experiment obtained by quantitative X-ray computerized tomography (CT) imaging for a Marcellus shale sample. Transport-related parameters estimated from history matching are shown to be consistent with literature data.
An Open Source Numerical Framework for Dual-Continuum Geomechanical Simulation
Authors: Ashworth Mark , Doster Florian
Published: March 2019

Modelling multiscale-multiphysics geology at field scales is non-trivial due to computational resources and data availability. At such scales it is common to use implicit modelling approaches as they remain a practical method of understanding the first order processes of complex systems. In this work we introduce a numerical framework for the simulation of geomechanical dual-continuum materials. Our framework is written as part of the open source MATLAB Reservoir Simulation Toolbox (MRST). We discretise the flow and mechanics problems using the finite volume method (FVM) and virtual element method (VEM) respectively. The result is a framework that ensures local mass conservation with respect to flow and is robust with respect to gridding. Solution of the coupled linear system can be achieved with either fully coupled or fixed-stress split solution strategies. We demonstrate our framework on an analytical comparison case and on a 3D geological grid case. In the former we observe a good match between analytical and numerical results, for both fully coupled and fixed-stress split strategies. In the latter, the geological model is gridded using a corner point grid that contains degenerate cells as well as hanging nodes. For the geological case, we observe physically plausible and intuitive results given the boundary conditions of the problem. Our initial testing with the framework suggests that the FEM-VEM discretisation has potential for conducting practical geomechanical studies of multiscale systems.