bluuebunny/crossref_metadata_2025 huggingface dataset:
Rare Complications of COVID-19 Pneumonia: Pneumomediastinum and Atrial Fibrillation
Authors: TUNÇ Şeyma , YILDIZ GÜLHAN Pınar , BORAN Mertay
Published: October 2021

Objective: Coronavirus disease 2019(COVID-19) is considered as systemic disease involving many vital organs in addition to the lungs, including the heart, liver, and kidneys. Pneumomediastinum associated with COVID-19 pneumonia is a rare condition usually seen in patients with underlying lung pathology, infections, or mechanical intubation. We presented a case of late diagnosis of pneumomediastinum and atrial fibrillation in COVID-19 patient undergoing Noninvasive mechanical ventilation (NIMV).

Case: A 66-year-old male patient with a history of COVID-19 pneumonia and 19 days hospital follow up and a NIMV treatment was admitted to our emergency department with palpitations and dyspnea. Thoracic CT and electrocardiography revealed, scattered ground glass areas, pneumomediastinum and high-velocity atrial fibrillation, respectively.

Conclusion: We recommend regular checks with imaging methods and ECG during follow-up in patients with COVID-19. Clinicians should remember that ventilator-related lung damage may be seen in COVID-19 patients undergoing NIMV.
Amino Acids and Minerals in a Tropical Nut, Hyphaene coriacea (The Turkana Doum Palm)
Authors:   Egerton University, Lokuruka Michael
Published: October 2021

The Turkana doum palm is an important indigenous plant from an economic standpoint in the Turkana District of Kenya. The various parts of the tree are used for a variety of social, cultural and domestic uses with the nut being an important indigenous wild fruit. However, despite the central place it occupies in the diets of those living along the banks of the major rivers, its nutritional profile is lacking in literature. This study was therefore conducted to document its nutritive composition. In this regard, the protein content of ngapocho and lookot, and the nonessential and essential amino acids in ngapocho were determined. Al so, six minerals were determined in the mesocarp products (apinet and ngapocho) of the nut of the Turkana doum palm, Hyphaene coriacea . The results showed that ngapocho and lookot contained 1.8 and 4.7% protein, respectively. The mesocarp of the nut contains substantial amounts of both the nonessential and essential amino acids and has a chemical score of 66. Threonine is the limiting amino acid. Unlike most plant foods, the nut is an excellent source of the sulphur amino acids methio nine and cystine; it is a good source of isoleucine, leucine, histidine, phenylalanine and tyrosine, and a fair source of tryptophan, lysine, valine and threonine. Ngapocho/lookot contained 17.0/17.4 mg Ca, 4.8/4.2 mg Mg, 0.2/0.2 mg K, 0.5/0.1 mg Na, 13.9/29.8 mg Fe, and 3.4/4.3 mg Zn/100 g. The nut of the Turkana doum palm is quantitatively an excellent dietary source of iron, a good source of zinc, but is a poor source of calcium, magnesium, potassium and sodium. The addition of bovine blood to apinet to make lookot raises the protein, iron and zinc content by more than 160, 100 and 25%, respectively, thus enhancing the nutritional quality of the lookot. Knowledge of the nutrient composition of indigenous food plants such as the Turkana doum palm is important for the purpose of educating the public on the nutritional value of indigenous food plants available in their immediate environments and for conservation efforts.
Processing Properties of Grains from some Maize Varieties Introduced On-farm in the Sudano Sahelian Zone of Cameroon
Authors:   Institute of Agricultural Research for Development, Cameroon, Anselme Kameni , C Kouebou , A.K. Aboubakar
Published: October 2021

Maize grains from twenty three cultivars developed by research and produced at farm level were evaluated for chemical composition and their ability to produce flour and grit after removal of panicle in wet and dry processes. Sixteen cultivars used for this evaluation were developed by the breeding program of the Institute of Agricultural Research for Development (IRAD) of Cameroon. The remaining seven originated from CIMMYT, West and Central Africa Maize Network (Wecaman), Ghana and Congo. Flour and grit were produced in wet and dry processes with samples of 10 kg of grains from each cultivars using available machinery at village level. Wet process of the grains included the removal of the panicle, soaking for 3 hours, drying on the mat for 2 hours, milling, drying of the flour and sieving through different mesh sizes (400 to 800 microns). For the dry milling, whole or pealed grains were simply processed in a hammer mill and the flour fractions separated as with wet milling. Results indicated some variation in the proximate composition with nine cultivars exhibiting protein contents above 8%. High protein cultivars were in order hybrids 88094X87036, 87036XExp124, Acid soil pool yellow, 88094XM131XExp124, 87084XM131XExp124, Drought pool yellow, Drought pool white, Kassaï SR, Tuxpeno sequia and BSR 81. PCA analyses revealed that protein and fat contents as factors accounted for over 80% of intra cultivar variability related to chemical composition. Four major similarity groups of cultivars emerged as striga tolerant with high starch contents, the soft endosperm cultivars, the high fat and high protein cultivars. Flour and grit yields were cultivar and treatment dependant. Wet milling produced higher flour yields while grit yields were higher when dry milling of pealed grains was done for all cultivars. Cultivars that demonstrated good ability for grit production were ATP SR-Y, Acid soil pool yellow, Drought pool yellow and the hybrids. All cultivars exhibited their ability and suitability for different end uses and this should be taken into account when embarking on large scale maize production.
Provision of Vitamin A Through Utilization of Local Food Materials in Rural Parts of Western Kenya
Authors:   Rural Outreach Program, Shiundu Kennedy , Oyie S , Kumbe M , Oniang'o R
Published: October 2021

High prevalence and the negative consequences of the deficiencies resulting from inadequate intake of iron, iodine and vitamin A have resulted in focused global efforts to alleviate them. Vitamin A deficiency which has serious consequences can be prevented by consumption of vitamin A rich foods. This study was undertaken to determine the viability of locally available foods in providing vitamin A to the impoverished populations in rural areas of Kenya. A cross-sectional survey was carried out in Butere-Mumias District of Western Province, Kenya from December 2003 to February 2004. The study compared the potential contribution of local foods to the provision of vitamin A, to the diets of children aged 12-71 months in the two divisions of Butere and Khwisero, as based on the Helen Keller International (HKI) method. Vitamin A rich foods consumed in the two study areas are dark green leafy vegetables, kales, papaya margarine, orange/yellow fleshed sweet potatoes, eggs and ripe mangoes. Butere and Khwisero divisions where the study was conducted are adjacent to each other. Butere division had an ongoing nutrition intervention project to promote African leafy vegetables, while Khwisero division did not. Of the 16 clusters surveyed, consumption of vitamin A was insufficient in the six of the eight communities in Butere, and three of the eight communities, in Khwisero. The frequency of consumption of vitamin A-rich foods in the study area fell below the threshold values of the HKI Method. Consumption of these foods was not regular as planting was done on an ad hoc basis especially in Khwisero division in areas which were not reached by the on-going campaign in the Butere division. Vitamin A deficiency was most likely a public health problem in the two divisions. This study recommends increased activities in the area to control vitamin A deficiency, prophylactic vitamin A supplementation and efforts to increase vitamin A consumption.
Toplumcu Gerçekçi Edebiyat Odağında Gazap Üzümleri’nde Toplumsal Cinsiyet Rolleri ve Kadın Gerçekliği
Authors: ŞEKER Aziz , ÖZCAN Emre
Published: October 2021

Toplumsal cinsiyet gerçekliği, edebiyat sosyolojisinin yoğunluk alanlarından biridir. Özellikle 19. yüzyıl sonlarında yükselen toplumcu gerçekçi edebiyatın, kadınların toplumsal yapı içinde maruz kaldıkları baskıcı mekanizmalara ve bu mekanizmalar karşısındaki mücadelelerine odaklanması mihenk taşıdır. Toplumcu gerçekçi eserlerde kadınların konumu, kapitalist üretim ilişkilerinin dayandığı sınıfsal eşitsizlikler dahilindedir. Bu tablo, 21. yüzyılda feminist edebiyat yazımının kendi bağımsız literatürünü oluşturma sürecine kadar devam etmektedir. Steinbeck’in Gazap Üzümleri romanı, bulunduğu çağın toplumcu gerçekçi edebiyat eserleri arasında geniş bir yankı uyandırmıştır. Roman, feodal üretim tarzının çözülmesiyle birlikte Oklahoma’da tarımsal üretimle geçinen bir ailenin iş arayışı için başladığı göç yolculuğunu konu edinmektedir. Yolculuğun dikkat çeken noktalarından biri Anne Joad karakteriyle eser boyunca öne çıkan toplumsal cinsiyet rollerine ilişkin anlamlandırmalardır. Bu anlamlandırmalar Anne Joad merkezinde ortaya konulurken, eserdeki diğer kadın karakterlerin toplumsal cinsiyet rolleri etrafında kazandığı kimliklerse talidir. Bu çalışma, Gazap Üzümleri romanını toplumsal cinsiyet rollerinin inşası üzerinden değerlendirmeye çalışarak, eserdeki kadın gerçekliğini Anne Joad karakteri üzerinden tartışmaya açmaktadır.
İnsanın Zaman Deneyiminin Fizyolojik ve Psikolojik Temelleri
Authors: SARAÇOĞLU Ece
Published: October 2021

İnsanın zaman deneyimi zamanın matematiksel, biyolojik, psikolojik, tarihsel ve kültürel tarzlardaki farklı görünümlerinde veya yanlarında açığa çıkmaktadır. Bu makale, felsefe tarihinin önemli bir araştırma alanı olan zaman felsefesi ışığında, insanın zaman deneyiminin yalnızca fizyolojik ve psikolojik temellerini irdelemeyi amaçlamaktadır. Zaman felsefesi hem zamanın varlığı ve neliği sorununu hem de zamanın tür olarak insanla olan ilişkisini konu edinen çok yönlü bir çerçeve çizer. Bu düşüncelerden hareketle bu çalışmada iki ana soru üzerinden yol alınır. İlk soru, diğer canlı var olanlar gibi bir bedene sahip olan insanın, zaman tecrübesinin nasıl bir fizyolojik temel taşıdığıdır. İkinci soru ise, her bir kişide farklı bilişsel süreçlerde ortaya çıkan insanın zaman deneyiminin, psikolojik temellerinin neler olduğu meselesidir.
Inclusion of university students in social projects on civil and patriotic education of children and youth
Authors: Garashkina Natalia V. , Druzhinina Anastasia A.
Published: October 2021

An urgent pedagogical problem is considered – the problem of including university students in social projects for the civil and patriotic education of children and youth. An analysis of concepts, interdisciplinary approaches (political science, sociological, psychological, pedagogical), legal documents (strategies, concepts, programs), best practices of organizing educational work in higher education in the civil and patriotic direction is presented. The groups of technologies of civil and patriotic education of student youth are determined: traditional, mixed, innovative. We high-light the leading technology of civil and patriotic education of student youth – inclusion in social projects. Cases and results of a qualitative assessment of students’ activities as implementers of their own projects of civil and patriotic education are shown. Testing of students’ achievements, expert assessment by employers showed the effectiveness of the project activities of students, taking into account their interests, the relationship with their future profession, the effectiveness of using the upbringing and educational potential of social partnership in the practice of civil and pa-triotic education, as well as the possibilities of intensification and prospects for the development of the process of civil and patriotic education students in the context of the application of innovative technologies and formats.
Project as an effective technology for teaching students of creative specialties
Authors: Grigorieva Elena I. , Maksimova Lyudmila N.
Published: October 2021

We discuss the process of using project technologies to develop professional competencies of students studying in creative specialties. The specificity of the organization of the educational process using project technologies is revealed, which allows organizing the activities of students with a focus on obtaining a specific creative product, attracting alternative resources, maintaining partnerships with various organizations and structures. The features of the project-oriented approach in the interaction of traditional and innovative principles in the creative self-realization of students are highlighted. The effectiveness of the process under consideration is based on the ability to build classes with students, taking into account their acquisition of certain skills and abil-ities, among which the most significant are: thought-activity, presentation, communication, search, information. Project technologies at the present stage of student learning are considered as one of the personality-oriented technologies that integrate a problematic approach, group methods, reflexive, presentational, research, search and other methods. It is noted that project activity allows solving the problem of youth readiness for active actions in a social environment, realizing the acquired knowledge and skills. Therefore, the development of project competence is one of the most important guidelines in the system of training students of creative specialties.
Social and demographic image of Jewish revolutionaries (based on materials from the All-Union Society of Political Prisoners and Exiled Settlers)
Authors: Yakimov Kuzma A.
Published: October 2021

The work is devoted to the study of the generalized sociographic image of the cohort of Jewish revolutionaries. The participation of Jews in the revolution is seen as an integral part of the all-Russian revolutionary process. In the course of the study, the role and place of Jews in the Rus-sian revolutionary movement in the late 19th – early 20th centuries was clarified and concretized. Thanks to the analysis of a personalized electronic database on Jewish revolutionaries, created on the basis of materials from the All-Union Society of Political Prisoners and Exiled Settlers, the structure of social origin, level of education and type of activity of the left wing of politically ac-tive Jewry has been analyzed. The features of the political socialization of Jews, constrained by restrictive articles of Jewish legislation, are shown. We come to the conclusion that such a signifi-cant percentage of Jews in the revolutionary movement is explained both by the long-term devel-opment of the revolutionary liberation movement in the Pale of Settlement, and by the existence of numerous restrictions for representatives of the Jewish nationality.
Sustainable Oil Adsorption from Produced Water using Cane Papyrus as Natural Biosorbent
Authors: Alatabe Mohammed Jaafar Ali
Published: October 2021

High quantities of wastewater produced from producing natural gas and oil from the aquifer, which called produced water. The produced water was comprised of dissolved solids, suspended solids, emulsified oil, and organic and inorganic compounds. That should be treated it's before disposal because it causes harm to the environment. This study takes the produced water from the southern Iraqi oilfield drilling company to adsorption by the Cane papyrus as natural and low-cost adsorbent. The analysis completed by using Fourier transforms infrared spectroscopy, EDX spectra and Scanning Electron Microscopic (SEM) for Cane papyrus. Investigating the effect of many parameters such as adsorbent dosage, temperature, solution pH, mixer speed and contact time. The Langmuir, Freundlich, Temkin and Harkins-Henderson isotherm models were tested, the results were 0.998,0.966, 0.931 and 0.966 respectively. The Langmuir model was more suitable described the adsorption process than the other models. The kinetics results were, 0.984 for Pseudo-first-order, 0.938 for Pseudo-second order is, 0.979 for Intra particle diffusion study and 0.912 for the Elovich model, the Pseudo-first-order kinetic equation best described the kinetics of the reaction. The thermodynamics study effect temperature changes on the thermodynamic parameters such as standard free energy change (∆G°), standard enthalpy change (∆H°) and standard entropy change (∆S°). The experimental data obtained demonstrated that Cane papyrus is a suitable adsorbent for removing oil from produced water.
Clinical Experience with Anti-IgE Monoclonal Antibody (Omalizumab) In Paediatric Severe Allergic Asthma – A Romanian Perspective
Authors: Camelia Berghea Elena , Balgradean Mihaela , Pavelescu Carmen , Cirstoveanu Catalin , Toma Claudia , Ionescu Marcela Daniela , Bumbacea Roxana Silvia
Published: October 2021

Background: Asthma is the most common chronic disease affecting children and altering their quality of life. The severity of asthma is often modulated by immunoglobulin E (IgE)-mediated allergen sensitization and is associated with comorbid allergic dis-eases. Omalizumab is a humanized monoclonal antibody anti-IgE, the first biological therapy approved to treat patients aged ≥6 years with severe allergic asthma. The primary objective of our study was to investigate the efficacy and safety of Omali-zumab in Romanian paediatric patients with severe allergic asthma. Methods: In this observational real-life study, 12 children aged 6 to 18 years, (mean age 12.4 years ) with severe allergic asthma received Omalizumab as an add-on treatment. The levels of asthma control, exacerbations, lung function and adverse events were evaluated at baseline and after the first year of treatment. Results: We noticed general improvements in total asthma symptom scores and the rate of exacerbation of severe asthma. Omalizumab increased the initial variables of lung function, and no serious adverse reactions were reported. FEV1 improved statistically significant after one year of treatment with Omalizumab, [ΔFEV1 (% pred.) =18.3, and similarly, ΔMEF50 (%) = 25.8]. The mean severe exacerbation rates due to asthma decreased from 4.1 (2.8 SD) to 1.15 (0.78 SD) during the treatment year (p<0.0001) with Omalizumab. Conclusions: Treatment with Omalizumab can be an effective and safe therapeutic option for Romanian children with severe allergic asthma, providing clinically relevant in-formation on asthma control and exacerbation rate in children and adolescents. The results highlighted the effect of Omalizumab in young patients, starting from the first year of treatment.
Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
Authors: Lee Myeongseong , Koziel Jacek A. , Macedo Núbia , Li Peiyang , Chen Baitong , Jenks William S. , Zimmerman Jeffrey , Paris R. Vincent
Published: October 2021

This study evaluated the use of filtration and UV-A photocatalysis for the reduction of particulate matter (PM) and airborne bacterial pathogens in swine barns. Two MERV filters (8 and 15) were used to mitigate PM concentrations measured at the PM 1, PM 2.5, respirable PM, and PM 10 ranges. Filtration was also used to generate different levels of airborne pathogens to be treated by UV-A. Results show that MERV 8 and 15 filters effectively reduced PM concentrations (96-98%) in air exhausted from a swine barn (p ranged from < 0.01 to 0.04). UV-A photocatalysis did not mitigate PM concentrations. UV-A photocatalysis treatment reduced measured colony-forming units (CFUs) by 15-95%. The CFU percent reduction was higher when airborne PM concentration was low. The numeric results suggested a real mitigation effect despite p-values that did not meet the usual statistical cut-off of <0.05 for significance due to the large variability of the CFU control samples. Normalization of measured airborne pathogen concentrations by smaller PM size range concentrations led to emerging significant treatment differences for CFUs. A significant decrease (~60% reduction; p < 0.03) in the concentration of viable airborne bacteria was shown for all PM below the 10-micron range.
Alleviation of Nematode-Mediated Apple Replant Disease by Pre-Cultivation of Tagetes
Authors: Kanfra Xorla , Obawolu Taye , Wrede Andreas , Strolka Bernhard , Winkelmann Traud , Hardeweg Bernd , Heuer Holger
Published: October 2021

Apple replant disease (ARD) is a severe problem in orchards and tree nurseries caused by yet unknown soil biota that accumulate over replanting cycles. This study tested the contribution of nematodes to ARD, and cultivation of Tagetes as a control option. In a pot experiment, Tagetes patula or Tagetes tenuifolia were grown in ARD soil, incorporated or removed. Nematodes extracted from untreated ARD soil and washed on 20 µm-sieves induced ARD symptoms when inoculated to apple saplings growing in a sterile substrate. In contrast, nematodes from Tagetes treated ARD soil did not reduce root growth compared to uninoculated plants, irrespective of Tagetes species and incorporation. In plots of five apple tree nurseries or orchards, either Tagetes or grass was grown on ARD soil. Nematodes extracted from the grass plots and inoculated to apple saplings significantly reduced plant growth compared to nematodes from Tagetes plots for all five farms. Apple rootstocks showed overall a significantly higher increase in shoot base diameter when grown on Tagetes-treated plots compared to grass plots, while this effect differed among farms. Plant-parasitic nematodes were too low in abundance to explain plant damage. In conclusion, the free-living nematodes involved in ARD can be controlled by Tagetes.
Saudi Arabia Energy Transition in the Context of Scholarly Publications
Authors: Chigarev Boris
Published: October 2021

The article is devoted to a bibliometric analysis of scientific publications reflecting trends in scientific publications related to the energy transition of leading universities in Saudi Arabia. The universities were selected based on the presence of joint publications with the Saudi Arabian Oil Company, they are: King Fahd University of Petroleum and Minerals, King Abdullah University of Science and Technology, and King Saud University. The importance of studying the experience of Saudi Arabia for Russia in the context of the energy transition was highlighted. The analysis was based on Scopus platform data related to Subject Areas: Physical Sciences. Scientists from Saudi Arabian universities are increasingly publishing with co-authors from China, India, Egypt, Pakistan, and Malaysia, while maintaining high interaction with co-authors from the United States, South Korea, and the United Kingdom. Authors from the Russian Federation publish poorly with co-authors from Saudi Arabia. The trends in the topics of scientific publications were investigated, and their connection with the renewable energy topic was shown. The VOSviewer software was used to determine the main research areas using the cluster analysis method based on the co-occurrence of key terms. The analysis was done for both Author's keywords and Index keywords of the Scopus system. Graphical representation of the final choice of terms to describe research trends was proposed. TRANSLATE with x English ArabicHebrewPolish BulgarianHindiPortuguese CatalanHmong DawRomanian Chinese SimplifiedHungarianRussian Chinese TraditionalIndonesianSlovak CzechItalianSlovenian DanishJapaneseSpanish DutchKlingonSwedish EnglishKoreanThai EstonianLatvianTurkish FinnishLithuanianUkrainian FrenchMalayUrdu GermanMalteseVietnamese GreekNorwegianWelsh Haitian CreolePersian TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster Portal Back
With or Without You: Co-chaperones Mediate Health and Disease by Modifying Chaperone Function and Protein Triage
Authors: Altinok Selin , Sanchez-Hodge Rebekah , Stewart Mariah , Smith Kaitlan , Schisler Jonathan C.
Published: October 2021

Heat shock proteins (HSPs) are a family of molecular chaperones that regulate essential protein refolding and triage decisions to maintaining protein homeostasis. Numerous co-chaperone proteins directly interact and modify the function of HSPs, and these interactions impact the outcome of protein triage, impacting everything from structural proteins to cell signaling mediators. The chaperone/co-chaperone machinery protects against various stressors to ensuring cellular function in the face of stress. However, coding mutations, expression changes, and post-translational modifications of the chaperone/co-chaperone machinery can alter the cellular stress response. Importantly, these dysfunctions appear to contribute to numerous human diseases. Therapeutic targeting of chaperones is an attractive but challenging approach due to the vast functions of HSPs, likely contributing to the off-target effects of these therapies. Current efforts focus on targeting co-chaperones to develop precise treatments for numerous diseases caused by defects in protein quality control. This review focuses on the recent developments regarding selected HSP70/HSP90 co-chaperones, focusing on cardioprotection, neuroprotection, and cancer. We also discuss therapeutic approaches that highlight both the utility and challenges of targeting co-chaperones.
The Antineoplastic Role of STAT5 Inhibition in BCRABL1-Positive Cells Exposed to Pimozide Alone and in Combination with Dasatinib and Ponatinib
Authors: Santoro Marco , Mancuso Salvatrice , Tolomeo Manlio , Pipitone Rosaria Maria , Grimaudo Stefania , Siragusa Sergio
Published: October 2021

Background: Though tyrosine kinase inhibitors managed to reach outstanding responses in the treatment of Chronic Myeloid Leukemia, resistance is still a challenging point, occurring in approximately 10–20% of the cases, due to several mechanisms. STAT5 expression has been strictly linked to resistance and disease progression and may thus represent a significant target to overcome resistance to TKI in CML. The aim of the study is to explore the in vitro antineoplastic role of the STAT5 inhibitor Pimozide in association with 2nd and 3rd generation inhibitors on chronic myeloid leukemia cells. Methods: The cytotoxic effect was evaluated by the Trypan blue dye exclusion test. K562 cell lines were exposed to pimozide alone and in association with ponatinib and dasatinib at different concentrations to explore the drugs association effect and the in vitro cytotoxic concentrations. Conclusions: Pimozide showed a synergic effect when associated with ponatinib and dasatinib in survival inhibition of K562 cell lines. This results are of note and pave the way for a possible in vivo associations.
The impact of technological and institutional transformation of the global financial market on education
Authors: Sukiasyan Asatur Albertovich , Ershov Vitaly Fedorovich , Poletaev Vadim Eduardovich , Menshikov Maksim Sergeevich , Yusupov Rakhimyan Galimyanovich
Published: October 2021

The article is devoted to forming new educational directions conditioned by the technological and institutional transformation of the global financial market in the 21st century. The modern digital economy puts forward new requirements for the competencies and professional ethics of specialists working in the investment sphere. The authors have identified the key factors determining the tasks of modernizing the training of financial analysts, bankers, and lawyers specializing in investment law. The problem concerns issues of digitalizing and globalizing investment flows, forming investment ecosystems, and expanding the participation of large financial businesses in educational projects. The authors conclude that global technological and socio-economic transformations stimulate the entire financial world, including Russia, to revise their business models, and the spheres of financial and specialized legal education – to actively modernize according to market requirements.
Weaknesses of Fidusia Execution After Rules of the Constituonal Court Number 18/PUU-XVII/2019
Authors: Suyanti Suyanti , Purwaningsih Sri Budi
Published: October 2021

The public's need for funding is currently increasing, which is used as additional capital, then people borrow funds from financing institutions on the condition that there is a guarantee to ensure legal certainty and if the debtor has broken his promise later, the object that is guaranteed can be executed, one form of guarantee institution, namely: fiduciary guarantee. The problem examined in this research is whether the decision of the constitutional court number 18 / PUU-XVII / 2019 weakens the implementation of the fiduciary guarantee execution and what is the weakness in the implementation of the fiduciary guarantee execution. The methodology used in this research is juridical and sociological based on field data and statutory regulations which are equipped with theory and literacy then followed by field data to answer the problems studied with a statute approach and analyzed deductively. The results of the research on the execution of the fiduciary object cannot be carried out by the creditor if there is no agreement from the debtor and if it is not interpreted about the existence of a default and the debtor is not willing to give voluntarily and the execution of the execution is not easy for the creditor to do.
The Influence of Word Of Mouth, Competitive Advantage And Brand Image Against The Decision to Use on Transportation Corporate
Authors: Sari Meida Ratna , Astuti Mudji
Published: October 2021

The purpose of this study was to determine and analyze the effect of word of mouth, competitive advantage and brand image on the decision to use expeditionary services at PT. Lintas Samudra Jaya Expres. This research uses a quantitative approach. The population in this study are customers who are bound by a contract with PT. Lintas Samudra Jawa Express, while the probability sampling technique using the Slovin formula obtained a sample of 93 respondents. The data analysis technique was performed using multiple linear regression, and hypothesis testing was carried out by partial test, simultaneous test and multiple determination coefficient test with the help of SPSS version 25. The results show that: 1) word of mouth affects the decision to use shipping services, 2) competitive advantage affects the decision to use shipping services, 3) brand image affects the decision to use shipping services, and 4) word of mouth, competitive advantage and brand image affects the decision to use courier services at PT. Lintas Samudra Jaya Espress.
The Effect of Price, Relationship Marketing and Word Of Mouth Towards Purchasing Decision
Authors: Afghoni Abbas Moh , Astuti Mudji
Published: October 2021

This research intended to understand the effect of price, relationship marketing and word of mouth towards purchasing decision on CV. Wonokoyo Gasindo in Beji Pasuruan. This research includes quantitative research with hypothesis test. Sampling in this study was carried out by probability sampling method with the type of simple random sampling with a total of 100 respondents of CV. Wonokoyo Gasindo consumers. Analysis tool used multiple linear regression analysis, classic assumption test, t-test, F test, multiple correlation coefficient and multiple coefficient of determination (R2) by using the SPSS 25.0. version application program. Primary data obtained trough questionnaire whose meassurement uses likert scale. Finally, the data declared valid and reliable. The research results establish that price has an effect to purchasing decision. Relationship marketing has an effect to purchasing decision. Word of mouth has an effect to purchasing decision. Price, relationship marketing and word of mouth have a simultaneously effect to purchasing decision on CV. Wonokoyo Gasindo in Beji Pasuruan.
The Effect of Advertising, Perception and Consumer Knowledge on Purchasing Products
Authors: Annas Wahyu , Hariasih Misti
Published: October 2021

This study aims to determine the Effect of advertising, perceptions and consumer knowledge on product purchases at PT. Javas Tripta Mandala. The analytical tool used is tabulating the questionnaire, collecting data in the form of validity and reliability tests. The hypothesis in this study is the Effect of advertising, perceptions and knowledge of consumers on product purchases to test this hypothesis used multiple linear regression analysis tools.The results of the research instrument obtained based on the validity test showed that all questions in the questionnaire were declared valid. To test the reliability of all variables, the Cronbach’s Alpha value is obtained> 0.6, so it is declared reliable. Hypothesis testing based on the F test, t test and Adjusted R2 shows that there is a significant effect of advertising, perceptions and consumer knowledge on product purchases.
The Effect of Teamwork, Internal Work Environment and Financial Compensation on Employee Performance at Sold Out Distro
Authors: Wijayanti Nadia Rahma Ayu , Andriani Dewi
Published: October 2021

This study aims to determine the effect of Teamwork, Internal Work Environment and Financial Compensation on Employee Performance at Sold Out Distro in Tulangan Sidoarjo. The method used in this research is a quantitative approach method. Sampling in this study was carried out by non probability sampling method  with saturated sample technique with the number of respondents as many as 95 respondents who become employees at Sold Out Distro in Tulangan Sidoarjo. Data collection techniques using a questionnaire. The data analysis technique used in this study uses multiple linear regression using the SPSS statistics version 25 program. The results of this study prove that Teamwork partially affect Employee Performance, Internal Work Environment partially affect Employee Performance and Financial Compensation partially affect Employee Performance.
Selection of EOR Technology in Ultra-Low-Permeability Reservoirs of the Achimov Deposits of the Priobsky Field
Authors: Gimazov Azat Albertovich , Balionis Anzhelika Igorevna , Sergeev Evgeniy Ivanovich , Khudiev Elmir Rovshanovich , Uchuev Ruslan Pavlovich
Published: October 2021

To create a technology for selection the optimal RPM method the simulation on a sector hydrodynamic model of the field has performed. Different injection modes (continuous injection, alternating, cyclic), injection agents and completions of injection wells were tried during the modeling. The key factors, which influence the choice of the RPM method, were determined. Pilot industrial works include short-term nitrogen injection, long-term APG injection, and production from pilot wells in various modes. Well research include pressure testing, well testing after gas injection, recording of inflow profiles, laboratory studies of the Priobskoye field's own core. Evaluation of the potential of gas enhanced oil recovery methods shows their significantly higher efficiency compared to stationary waterflooding. The suggested approach can minimize the risks in the transition to previously untested development methods and methods of enhanced oil recovery in ultra-low-permeability reservoirs of the Achimov deposits. The analysis and the results of partially conducted pilot projects (at the moment) have showed a high potential for gas injection in certain areas of the field.
Flood Control Method in Fields with Hard-To-Recover Reserves
Authors: Syundyukov Alexander Viktorovich , Khabibullin Galiaskar Ismagilovich , Trofimchuk Alexander Stanislavovich , Shaikhatdarov Denis Radikovich , Sagitov Damir Kambirovich
Published: October 2021

This paper presents a method for predicting the development of Auto-HF (crack) in injection wells of the reservoir pressure maintenance system during the development of low-permeable reservoirs, in order to ensure the optimal front of oil displacement by water by regulating the bottom-hole pressure of injection wells based on the derived dependence of the half-length of the Auto-HF (crack).
Induced Thermal Shocking by BiMTheCh Technology as a New Approach for Enhanced Oil Recovery from Tight Reservoirs with Heavy Oil
Authors: Rezaei Koochi Mojtaba , Mehrabi-Kalajahi Seyedsaeed , Varfolomeev Mikhail Alekseevich , Savelev Vladislav Vladimirovich , Ziganshin Eduard Rishadovich , Kadyrov Rail Ilgizarovich , Shamanov Insaf Nakipovich , Galeev Ranel Ilnurovich
Published: October 2021

This work is devoted to investigate the ability of thermal shocking to create fractures in rock samples and thermal cracking of heavy crude oil structure. In order to study the thermobaric characterizations of catalytic and thermal decomposition reaction of binary mixture (BM), a series of experiments was designed in high-temperature and high-pressure reactor (HTHP) and the time to reach the maximum temperature and pressure were monitored. Before and after the experiments, core samples were scanned by 4D tomography. In addition, SARA analysis was done to study the effect of thermal shocking on heavy oil composition. The results showed that using BiMTheCh, the temperature in the reaction zone was increased up to 273 °C during very short time (2 seconds) after activation of the reaction. Either, the pressure was increased up to 129 atm. As results showed, the simultaneous sudden increase in temperature and pressure creates a thermal shock which reduces breakdown pressure from 235 to 12 atm. Computed scanning tomography results confirmed formation of new fractures on the surface of core samples. Results of the SARA analysis also confirmed that the molecular structure of heavy oil due to the binary mixture's reaction was changed. Sharp increase in pressure and temperature induced transformation of heavy components of crude oil such as asphaltenes into lighter components such as saturates. Generally, the binary mixture technology can be used as a new high-efficient and eco-friendly technology for enhanced heavy oil recovery from tight heavy oil reservoirs.
The Development Method of Low-Permeability and Ultra-Low-Permeability Reservoirs by Waterflooding
Authors: Gimazov Azat Albertovich , Bazyrov Ildar Shamilevich
Published: October 2021

The article describes a method for developing low-permeability reservoirs using horizontal wells with multi-stage hydraulic fracturing. The effectiveness of the new method lies in protecting the horizontal part of the production well by drilling it through a non-reservoir plastic reservoir adjacent directly to the target reservoir. The paper considers various implementations of the technology and estimates the increase in oil recovery factor for each of them based on the results of hydrodynamic modeling. The risks associated with the implementation of the technology are considered. Methods for their reduction are proposed.
Industrial Application of Nickel Tallate Catalyst During Cyclic Steam Stimulation in Boca De Jaruco Reservoir
Authors: Vakhin Alexey V. , Mukhamatdinov Irek I. , Aliev Firdavs A. , Feoktistov Dmitriy F. , Sitnov Sergey A. , Gafurov Marat R. , Minkhanov Ilgiz F. , Varfolomeev Mikhail A. , Nurgaliev Danis K. , Simakov Iaroslav O. , Latypov Azat A. , Petrashov Oleg V. , Solovev Aleksey V. , Sansiev Georgi V.
Published: October 2021

A nickel-based catalyst precursor has been synthesized for in-situ upgrading of heavy crude oil that is capable of increasing the efficiency of steam stimulation techniques. The precursor activation occurs due to the decomposition of nickel tallate under hydrothermal conditions. The aim of this study is to analyze the efficiency of in-situ catalytic upgrading of heavy oil from laboratory scale experiments to the field-scale implementation in Boca de Jaruco reservoir. The proposed catalytic composition for in-reservoir chemical transformation of heavy oil and natural bitumen is composed of oil-soluble nickel compound and organic hydrogen donor solvent. The nickel-based catalytic composition in laboratory-scale hydrothermal conditions at 300°С and 90 bars demonstrated a high performance; the content of asphaltenes was reduced from 22% to 7 wt.%. The viscosity of crude oil was also reduced by three times.

The technology for industrial-scale production of catalyst precursor was designed and the first pilot batch with a mass of 12 ton was achieved. A «Cyclic steam stimulation» technology was modified in order to deliver the catalytic composition to the pay zones of Boca de Jaruco reservoir (Cuba). The active forms of catalyst precursors are nanodispersed mixed oxides and sulfides of nickel.

The pilot test of catalyst injection was carried out in bituminous carbonate formation M, in Boca de Jaruco reservoir (Cuba). The application of catalytic composition provided increase in cumulative oil production and incremental oil recovery in contrast to the previous cycle (without catalyst) is 170% up to date (the effect is in progress). After injection of catalysts, more than 200 samples from production well were analyzed in laboratory. Based on the physical and chemical properties of investigated samples and considering the excellent oil recovery coefficient it is decided to expand the industrial application of catalysts in the given reservoir. The project is scheduled on the fourth quarter of 2021.
Design Researches in Making In-Situ Thermal Foam System as a New Enhanced Heavy Oil Recovery Method
Authors: Kozhin Vladimir Nikolaevich , Mikhailov Andrey Valerevich , Pchela Konstantin Vasilievich , Kireev Ivan Ivanovich , Demin Sergey Valerevich , Roschin Pavel Valerevich , Nikitin Aleksandr Valerevich
Published: October 2021

The paper presents the results of lab and filtration studies aimed at improving the procedure of thermal/gas/chemical effect (TGCE) with the generation of thermogenic system in reservoir conditions, proposed as an alternative to the methods of increasing oil recovery, such as water-gas effect procedure and foam injection process. The objects of research were thermal/gas generating compositions at the basis of sodium salts of sulfamic and nitric acids. Moreover, the influence of the ionic composition of the aqueous solution and temperature on the surface properties of the attracted solutions of surfactants (surfactants) was also evaluated.

Filtration tests have shown that the use of a thermal/gas generating composition leads to additional displacement of high-viscous oil. The introduction of surfactants in the thermal/gas generating composition promotes foaming in the porous medium of the reservoir model and prevents gas breakthrough that leads to an increase in the oil displacement factor up to 24 %.
Determination of Adsorption-Retention Constants and Inaccessible Pore Volume for High-Molecular Polymers
Authors: Fedorov Konstantin Mikhailovich , Pospelova Tatyana Anatolyevna , Kobyashev Aleksandr Vyacheslavovich , Gilmanov Aleksandr Yanovich , Kovalchuk Tatyana Nikolaevna , Shevelev Aleksand Pavlovich
Published: October 2021

The application of chemical enhanced oil recovery methods is based mainly on data from experiments. Determining the adsorption constants without destroying the sample remains a relevant problem. It is necessary for accurate data. The determination of filtration parameters of high-molecular polymers in a porous medium using special model is considered in this paper. The aim of the investigation is the solution of inverse problem of polymer transport with adsorption. The key data for this are the characteristic times of the polymer front propagation, water and rock densities, porosity, and initial polymer concentration. The solutions of the direct problem and the inverse problem from the characteristic form of equations are obtained. The algorithm of interpretation of adsorption-retention parameters and inaccessible pore volume form non-destructive experimental studies is developed. Comparison of the calculated values of the inaccessible pore volume with the results of laboratory studies leads to an error within 10%. The practical application of the algorithm was carried out using the data obtained in previously conducted experiments.
Design of Laboratory Studies to Develop the Chemical Formulation for Surfactant-Polymer Flooding
Authors: Gospodarev Dmitry , Lymar Igor , Rakutko Aleksandra , Antuseva Anastasia , Tkachev Dmitry
Published: October 2021

Nowadays, chemical EOR methods are becoming more and more relevant, among which the alkali-surfactant-polymer flooding is of particular interest. The efficiency of this technology largely depends on the correct choice of the components of chemical formulation, which should be based on a set of laboratory experiments carried out in a given sequence.

This paper presents a methodological approach to laboratory studies in order to develop an optimal surfactant-polymer formulation, taking into account the geological and physical characteristics of the target field and the properties of reservoir fluids.

The experimental part of the research work was carried out in several stages, involving the analysis of the physicochemical characteristics of reservoir oil, the screening studies of surfactant and polymer samples, as well as a series of coreflood tests with a selected chemical formulation on the terrigenous reservoir models.

During screening studies, the solubility and compatibility of the chemical components, the phase behavior of surfactant solutions with oil at different salinity values and water-oil ratios, static adsorption of chemicals on the rock and their thermal stability at reservoir temperature were investigated. Optimization of the chemical formulation was based on the results of IFT measurements of the surfactant solutions and rheological studies of the polymer solutions.

At the stage of coreflood tests, physical simulation of the surfactant-polymer flooding was carried out on reservoir models using natural core material in order to optimize the composition and slug size of the developed chemical formulation. The obtained results of the displacement experiment were matched by numerical 1D simulation.

Based on the results of the studies performed, an effective surfactant-polymer formulation has been designed, which provides the ultra-low IFT (2.8·10−4 mN/m) values and the ability to form stable middle-phase microemulsions when interacting with oil. The findings of thermal stability and static adsorption experiments confirmed a feasibility of selected chemicals for practical application. Within the framework of the study, the key technical parameters of proposed formulation were determined, which are required for up-scaled simulation study of the chemical flooding process at pilot site.
Construction of a Multipurpose Exploration Well in the Jurassic Deposits Subsequent Transfer to Production Enabled by Metal Expandable Barrier Installed Behind the Casing
Authors: Lebedev Ivan Valentinovich , Gabdullin Aydar Razinovich , Korepin Oleg Vasilievich , Dubitskit Sergey Stanislavivich , Novikiv Sergey Vladimirovich , Feklenkov Sergey Victorovich
Published: October 2021

The resource base of the north of the West Siberian oil and gas province is the basis of Russia's energy strategy. Among the northern territories of the province, the Nadym-Purskaya, Pur-Tazovskaya and Yamal oil and gas regions (OGRs) are the leaders in terms of estimated gas reserves (Figure 1). However, the largest deposits of the first two OGRs are in the stage of falling production. Therefore, the main prospects should be associated with the Yamal OGR, which has not yet been put into active operation. It is logical that along with the development of traditional methods of extraction of "dry" natural gas, the government of the Russian Federation has approved a plan for the production of liquefied natural gas based on the fields of the Yamal Peninsula, which is currently being actively implemented by PJSC "NOVATEK". (https://www.novatek.rU/m/business/exploration/)