bluuebunny/crossref_metadata_2025 huggingface dataset:
Selección de campos para la implementación de solar EOR como proceso térmico de recobro mejorado en Colombia
Authors: Medina Casas Martha Patricia , Gutiérrez Ramírez Angélica María , Amorin Figueroa Maria Patricia , Escobar Macualo Freddy Humberto , Guerrero Martin Camilo Andrés
Published: June 2020

La tecnología Solar EOR actualmente desempeña un papel importante en la combinación de tecnologías EOR para procesos de recobro térmico con inyección continua de vapor; dado que, en lugar de quemar gas natural para producir vapor, Solar EORinvolucra el uso de la tecnología de concentración de energía solar (CSP) para producir vapor. El mecanismo de operación consiste en instalar espejos parabólicos protegidos por un invernadero, que reflejan y concentran la luz solar en los receptores que recogen energía solar y luego la convierten en calor. El calor se usa para producir vapor del agua; Solar EOR puede generar la misma calidad y temperatura de vapor como gas natural. En Colombia existen zonas de interés en donde se encuentran campos petrolíferos que cumplen los criterios de las propiedades petrofísicas de fluidos y del yacimiento, así como la irradiación normal directa (DNI) necesaria para la instalación de esta tecnología, por lo tanto, el uso de Solar EOR podría reducir la demanda que se requiere de gas natural para EOR, que puede redirigirse a otras actividades económicas tales como generación de energía, desalinización de agua y como materia prima y energía para procesos industriales. El presente trabajo busca seleccionar los campos candidatos para la aplicación de esta tecnología
Revisión general de la producción elevada de agua en la industria del petróleo
Authors: Ortega Ramirez Angie Tatiana , Marín Maldonado Diego Fernando , Ochoa Rodríguez Edgar Danilo
Published: June 2020

En el presente artículo se realiza una revisión detallada sobre las características y generalidades de la producción elevada de agua en las operaciones de la industria petrolera, relacionando volúmenes de producción con los problemas técnicos que pueden estar generando dichos excesos de fluido, métodos de identificación y diagnóstico de un alto corte de agua, metodologías utilizadas por la industria tanto mecánicas y químicas para mitigar los volúmenes excesivos del recurso hídrico; para finalmente abordar el tema de la disposición final y uso de las aguas de producción de la industria del petróleo, teniendo en cuenta cifras y porcentajes.
DELINEAMENTO DE ÁREAS COM POTENCIAL EROSIVO PARA A BACIA HIDROGRÁFICA DO RIO PARANAÍBA (PN1-IGAM)
Authors: Gomes Ivair , Vieira Elaine M. , Machado Marley L. , Simão Maria L. R. , Ferreira Arlon C.
Published: June 2020

A identificação do potencial erosivo de uma área antes que ele se manifeste é de grande importância para mitigar impactos ambientais negativos e evitar prejuízos econômicos ao uso do solo. Assim esse trabalho teve como objetivo identificar as áreas com maior potencial de sofrer processos erosivos na Bacia Hidrográfica PN1 (o Instituto Mineiro de Gestão de Águas dividiu a área da Bacia do Rio Paranaíba, em MG, em: PN1, PN2 e PN3). Por meio do emprego do Sensoriamento Remoto e de Sistemas de Informação Geográficas, foram feitas a identificação das áreas mais suscestíveis a um processo erosivo, bem como a manipulação das variáveis inerentes a esse processo, que atuam na bacia. Foram avaliados os tipos de solo, uso da terra, relevo e outros parâmetros necessários ao entendimento da dinâmica erosiva na bacia e calculada Equação Universal de Perdas de Solos (EUPS) para os diferentes cenários de uso do solo. Para obtenção dos resultados foram elaborados mapas de erodibilidade e erosividade que permitiram dar uma indicação das principais áreas de risco erosivo em cada cenário de uso. Os resultados apresentados para o potencial erosivo, foram abordados de forma qualitativa, com cenários onde se empregam e onde não se empregam práticas conservacionistas.

Palavras-Chave: Bacia Hidrográfica; Solo; SIG; Conservação do solo; Erosão.
Spontaneous creativity: An overview of theories crucial to musical idea generation
Authors: Copeland Natalia
Published: June 2020

The aim of this article is to present selected concepts related to idea generation in musical com-position. Different approaches towards creativity are discussed in order to delineate how they describe spontaneous creativity. The typological view of composers and theories of the creative process are discussed. Further advances in studies of creative cognition are scrutinized: research on unconscious and conscious processes in creation, followed by the development of the concept of innovative Involuntary Musical Imagery (InMI) in composers. Current research on internal auditory phenomena suggests that composers’ InMI can be potentially innovative and serve composers as a source of ready ideas to be used in their compositions. The current overview is informed by cognitive sciences and creative process studies, especially compositional studies.
Mental practice of musically gifted adolescents
Authors: Kaczmarek Stella
Published: June 2020

In the last decade, the growing interest in the subject of musicians’ mental practice has produced a significant increase in research on mental and instrumental practice. More than half of all the studies concerns professional musicians, and relatively little research is conducted on children or adolescents. The article will describe research on the mental practice of teenagers attending music schools in Poland and Germany. Questionnaire surveys answer the question of whether young people use mental practice, how they do it, and what the content of mental training while practicing an instrument is. The analysis suggests that gifted adolescents from both countries (1) do not use mental rehearsal very often and (2) use mental practice strategies in a similar way. What they differ in is the frequency of using mental practice as an integral part of their instrumental learning, using musical-analytical strategy, and the quality of mental practice. The study indicates the need to teach mental practice and its importance in increasing the effectiveness of instrumental practice.
Implant-Retained Nasal Prosthesis with Bar and Clip for a Patient with Total Rhinectomy: A Clinical Report
Authors: Balaghi Fatima , Hasanzade Mahya , Zarati Simindokht
Published: June 2020

The present clinical report describes the fabrication of an implant-retained prosthesis with bar and clip retention for a patient with total rhinectomy due to basal cell carcinoma (BCC). The nasal prosthesis was retained on the face by a reverse Y-shaped bar with horizontal and vertical extensions, resulting in favorable retention and function.
Rational Design of Hypoallergenic Vaccines: Blocking IgE-binding to Polcalcin Using Allergen-specific IgG Antibodies
Authors: Mohammadi Mohsen , Khamisipour Gholamreza , Soltanpour Faezeh , Omrani Fatemeh , Taheri Behrooz , Momenzadeh Niloofar , Fouladvand Moradali
Published: June 2020

Chenopodium album polcalcin (Che a 3) is characterized as a major cause of cross-reactivity inallergic patients to the Chenopodiaceae family. Therefore, the present study was conducted to develop a hypoallergenic Che a 3 derivatives as the candidate vaccine for type 1 allergy. Four derivatives were generated from Che a 3. The first was a mosaic peptide derivative computationally identified in Che a 3 which was coupled to keyhole limpet hemocyanin (KLH). The second one was a mutant Che a 3, and the other two derivatives included N- and C-terminal halves of Che a 3 that both coupled to KLH. The IgE-binding capacity of Che a 3 and its derivatives and also their ability to induce there combinant Che a 3 (rChe a 3)-specific IgG antibody, were determined using the enzyme-linked immune sorbent assay (ELISA). Moreover, the lymphopro liferative capacity of rChe a 3 or its derivatives and their pro-inflammatory cytokine response interleukin (IL)-5 and IL-13 were measured in the human peripheral blood mononuclear cells (PBMCs). Among all derivatives, the N-terminal half peptide and mosaic peptide exhibited the lowest IgE-binding capacity. In addition, in comparison to other antigens, KLH-coupled mosaic peptide induced the highest level of the recombinant Che a 3 (rChe a 3)-specific IgG antibody and ther Che a 3 specific-blocking IgG antibody in mice. Moreover, the mosaic peptide lacked lymphopro liferative capacity and down-regulated expression of pro-allergic IL-5 and IL-13 cytokines. Therefore, a peptide-carrier fusion vaccine, composed of the B-cell epitope coupled to the carrier, could be considered as one of the promising hypoallergenic vaccines to treat patients with allergy to low molecular weight allergens such as Che a 3.
A Rare Case with Quail Egg Allergy without Allergic Reactions to Oral Food Challenge with Hen’s Egg White
Authors: Ghobadi Dana Vahid , Bemanian Mohammad Hassan , Shokouhi Shoormasti Raheleh , Arshi Saba , Nabavi Mohammad
Published: June 2020

Hen’s egg, as one of the most common reasons for IgE-mediated food hypersensitivity, affects both children and adults. Taking precautionary measures is suggested for the consumption of other birds’ eggs for patients with allergy to hen’s egg. This paper describes a rare patient with quail egg allergy, which manifested no allergic reactions after oral food challenge with hen’s egg white
Delay in Diagnosis of Two Siblings with Severe Ocular Problems and Autoimmune Polyglandular Syndrome
Authors: Sharafian Samin , Tavakol Marzieh T , Gharagozlou Mohammad , Parvaneh Nima
Published: June 2020

Autosomal polyendocrinopathy syndrome type 1(APS1) is a scarce polyendocrinopathy with autosomal recessive inheritance results from defects in the human autoimmune regulatory (AIRE) gene. In addition to three major manifestations of APS1 including mucocutaneous candidiasis, hypoparathyroidism, and Addison’s disease, ophthalmic problems such as keratoconjunctivitis, dry eye, iridocyclitis, and cataract can be seen in these patients. In this article, we introduced two siblings presented with nail dystrophia, severe photophobia, and keratitis since early childhood which genetic examination revealed single nucleotide T>C translocation in their 2nd exon and heterozygous deletion mutation in their 12th exon.
Response Comment on “Association between Interleukin-32 and Interleukin-17A Single Nucleotide Polymorphisms and Serum Levels with Polycystic Ovary Syndrome”
Authors: Gharesi-Fard Behrouz , Hesampour Fatemeh
Published: June 2020

This article is a Letter to the Editor and does not include an Abstract.
Iran’s Response to COVID-19 Crisis: What We Have Done and What Needs to Be Done
Authors: Doshmangir Leila , Doshmangir Parinaz , Khodayari-Zarnaq Rahim , R.Kalankesh Leila
Published: June 2020

This article is a Letter to the Editor and does not include an Abstract.
A Qualitative Exploration on Major Challenges of Reproductive Health in Adolescents and Youth in Iran
Authors: Mehrolhassani Mohammad Hossein , Haghdoost Ali Akbar , Dehnavieh Reza , Esmaeili Maryam , Yazdi-Feyzabadi Vahid
Published: June 2020

Background: Reproductive health (RH) in adolescents and youth, as one of the critical components of population health policies, plays a pivotal role in preventing risky behaviors and achieving a healthy and productive generation for the future society. Thus, this study aimed to explore the challenges of RH in adolescents and youth in Iran.
Methods: Using a purposeful sampling method with maximum variation, semi-structured in-depth interviews were held with eighteen key informants in the field of RH. A Snowball sampling strategy was deployed to identify the participants. The multi-dimensional PRECEDE-PROCEED model of health promotion was used as a guiding framework for the topic guide. The transcribed interviews were coded and analyzed using thematic analysis.   
Results: Three main themes of decision-making system, lifestyle, as well as social and epidemiological issues, were emerged from the interviews. We also explored six themes, including the knowledge and expertise about RH, policy-making and management system, environmental factors, individual factors, family and social anomalies, and epidemiological status of RH. Furthermore, twenty-five sub-themes were extracted from the main themes, which represented the challenges. Lack of understanding of the issues and absence of a coherent intellectual system that provides a collaboration of different systems in policy-making were fundamental and dominant challenges of RH for adolescents and youth in Iran.
Conclusion: To meet these challenges, we require an integrated and coherent system of policy-making with a reliance on scanning individual, environmental, social, and epidemiological changes that influence RH.
Effects Of Home-Based Convergence Insufficiency Vision Therapy On Accommodation Among School Going Children
Authors: Wekesa Andrew , Wanzala Mazximila
Published: June 2020

Effects of home-based convergence insufficiency vision therapy on accommodation among school going children

Wekesa Andrew1, Wanzala Maximilla1

1Masinde Muliro University of Science and Technology Kakamega, Kenya.

 

Abstract

Background: Convergence and accommodation are always yoked together and any adjustment on the former affects the later. The most effective treatment for convergence insufficiency (CI) is vision therapy.

Aim/Purpose: To determine the effects of home-based vision therapy on accommodation in school-going with CI attending the Masinde Muliro University Academic Vision Center in Kenya.

Methods: A clinical experimental design involving 23 participants with the mean age of 14±2.4 years, were recruited into the study, however, only 18 were assessed after the therapy. The study took 9 weeks thus majority lost contact while others moved out of the town. Home-based vision therapy which is undertaken at home using a pencil or broke strings. During the therapy, accommodative values were monitored which were; negative relative accommodation, positive relative accommodation, dynamic accommodation, accommodative facility and near point of accommodation. Paired t-test used to compare mean values before and after the therapy.

Results: The mean value of negative relative accommodation (NRA) before (mention what the mean values were here) and after (mention what the mean values were here) home-based therapy was statistically significant (p=0.01). However, the mean values before and after home-based therapy for the near point of accommodation (NPA), dynamic (Lag), relativity (PRA) and facility (MAF) showed no difference (p> 0.05). The mean value of the NRA before and after office-based vision therapy was statistically significant (p=0.01).

Conclusion: The use of home-based vision therapy for the patients with CI had significant effects on accommodation changing from a lower limit to average after the therapy.

 

Keywords: Convergence insufficiency, Accommodation, Home-based vision therapy.
Comparison of Syphilis Rapid Diagnostic Test to Rapid Plasma Reagin, Treponema pallidum Haemagglutination Assay and Fluorescent Treponemal Antibody-Absorption for Syphilis and Yaws Diagnostics
Authors: Giantini Astuti , Wulandari Dewi , Suparmin Siskawati
Published: June 2020

BACKGROUND: Syphilis and yaws are the treponemal infections which have become serious public health problems, and both are serologically indistinguishable. Developed serological tests for syphilis may also be used to diagnose yaws. In remote area, test modality with minimal requirements were needed. This study investigated the diagnostic value of syphilis rapid diagnostic test (RDT) in diagnosing syphilis and yaws.METHODS: For syphilis diagnostic test, serum samples were obtained from patients of outpatient clinic in Dr. Cipto Mangunkusumo National Central General Hospital who were sent for rapid plasma reagin (RPR) and Treponema pallidum haemagglutination assay (TPHA) to clinical laboratory of the hospital. The serum samples were collected and stored at -80°C until the day of testing for syphilis RDT and fluorescent treponemal antibody-absorption (FTA-Abs). For yaws diagnostic test, serum samples were obtained as a part of surveillance study of yaws among children 1-15 years old in West Halmahera. Venous blood samples were used for syphilis RDT and the sera were separated and were sent to Dr. Cipto Mangunkusumo National Central General Hospital for RPR, TPHA, and FTA-Abs tests.RESULTS: For syphilis diagnostic test, among 156 samples, 39 samples were positive with syphilis RDT. The sensitivity of syphilis RDT was similar to RPR and TPHA (100.0%), the specificity was same as TPHA (77.5%), but lower than RPR (84.8%) when compared to FTA-Abs IgM. The sensitivity of syphilis RDT was 62.5% and the specificity was 96.0% when compare to FTA-Abs IgG. For yaws diagnostic test, among 176 samples, 13 samples were positive with syphilis RDT. By using FTA-Abs IgM as gold standard for diagnosing yaws, the RDT have similar sensitivity (50.0%) with RPR and TPHA and syphilis RDT have similar specificity to TPHA (93.1%). If compared to FTA-Abs IgG, the sensitivity of syphilis RDT was 40.0% and the specificity was 98.0%.CONCLUSION: Syphilis RDT gives similar results with TPHA in syphilis and yaws cases. It may be used as a first line screening test latent or untreated syphilis and yaws because of good sensitivity. For yaws diagnosis Syphilis RDT, RPR, and TPHA have low sensitivity, however all those tests have an excellent agreement.KEYWORDS: FTA-Abs, rapid diagnostic test, syphilis, yaws
Simvastatin Improves Renal Function and Glomerulosclerosis in Ischemic-reperfusion Injury
Authors: Cahyawati Putu Nita , Lestari Desak Putu Oki , Siskayani Ayu Savitri , Ariawan I Made Toya
Published: June 2020

BACKGROUND: Statin is an anti-cholesterol drug that is widely prescribed throughout the world. Statins are mainly used to treat and prevent cardiovascular disease. Several studies have found the pleiotropic effect of statin. However, related effect of statin in kidney failure is still unclear. Ischemic-reperfusion (I/R) injury is a major cause of acute kidney failure. This study aims to determine the effect of simvastatin on kidney function and glomerular conditions by periodic acid-schiff staining in I/R injury.METHODS: Eighteen male Swiss mice were grouped into sham operation group (GSO), I/R injury group (GIRI), and simvastatin group (GSIM). The GSO group was performed by sham operation and pretreatment of 1% carboxymethylcellulose (CMC) for 3 days. The GIRI group was performed by I/R procedure and pretreatment of 1% CMC for 3 days and the GSIM group was performed by I/R procedure and pretreatment of 10 mg/kg BW simvastatin for 3 days. Blood urea nitrogen (BUN) and creatinine serum were assessed to determine kidney function. Histopathological analysis of glomerulosclerosis was assessed by the extent of glomerular damage (sclerosis), capillary loops, and synechia. The data were analyzed by one-way ANOVA followed by post hoc Tukey’s test (p<0.05).RESULTS: The creatinine and BUN levels in the GIRI group were the highest (0.97±0.48) compared with the other groups. The glomerulosclerosis index in the GSO group was 0.75±0.56, the GIRI group was 3.55±0.61, and the GSIM group was 2.08±1.37. There was a significant difference in the glomerulosclerosis index between the GSO and GIRI groups, but there was no significant difference between the GIRI and GSIM groups. These differences include the formation of sclerosis in the glomerulus, capillary loop, and synechiae.CONCLUSION: Simvastatin improves kidney function and glomerulosclerosis in I/R injury.KEYWORDS: ischemic-reperfusion injury, simvastatin, glomerulosclerosis
Association of CCL7 Promoter Polymorphism with Responsiveness to Allergen in Cynomolgus Macaque Model of Asthma
Authors: Mariya Sela Septima , Dewi Fitriya Nur Annisa , Hayes Eric , Villiandra Villiandra , Pramastri Yasmina Arditi , Iskandriati Diah , Saepuloh Uus , Pamungkas Joko , Budiarsa I Nengah , Sajuthi Dondin
Published: June 2020

BACKGROUND: C-C motif Ligand 7 (CCL7) has been reported to be associated with asthma severity in humans. Cynomolgus macaques (Macaca fascicularis; Mf) are often used as animal model of asthma but little is known about Mf genetic profile such as polymorphism. Our aim was to identify CCL7 polymorphism in Mf as a potential surrogate marker for identification of allergen responsiveness in the Mf model of asthma.METHODS: Real-time PCR was performed on archive of bronchoalveolar fluid samples previously collected from Mf that were exposed to allergen. Expression of CCL7 mRNA was evaluated, and sequencing technique was used to identify polymorphism in this gene.RESULTS: The results showed that CCL7 expression did not differ between Mf, despite a trend of lower expression in Mf that exhibited high response to allergen. By direct DNA sequencing of CCL7, 10 sequence variants were identified; three in promoter region (-460 G/A, -459 A/G, -456 -/A ), two in exon 1 (9 A/G, 65 G/C), four in intron 1 (135 T/C, 254 T/C, 420 T/C, 453 A/G), and one in intron 2 (1205 T/A).CONCLUSION: There was an association between Mf sensitivity to allergen with CCL7 promoter polymorphism at (-456 -/A). These results suggest that CCL7 may be a potential genetic marker to identify Mf sensitivity to allergen, which could be a useful tool to efficiently select for Mf model of asthma.KEYWORDS: asthma, CCL7, allergy, Ascaris suum, nonhuman primate
Low Level of Vitamin D is Correlated with High C-Reactive Protein (CRP) and Disease Activity in Indonesian Juvenile Idiopathic Arthritis (JIA) Patients
Authors: Wulandari Desy , Barlianto Wisnu , Sari Tita Luthfia
Published: June 2020

BACKGROUND: Vitamin D plays essential role in the regulation of inflammation, such as in pathogenesis of Juvenile Idiopathic Arthritis (JIA). Vitamin D deficiency has been reported among JIA patients, but there were conflicting results regarding the correlation with disease activity. This study aimed to assess vitamin D serum level and its correlation with C-Reactive Protein (CRP) and disease activity in JIA patients.METHODS: Children who were diagnosed with JIA according to International League of Associations for Rheumatology (ILAR) criterias were enrolled as JIA group subjects, while age and sex-matched healthy children were enrolled as the control group subjects. Vitamin D and CRP serum level were measured. Disease activity of JIA patients was calculated by Juvenile Arthritis Disease ActivityScore-27 (JADAS-27).RESULTS: Vitamin D serum level was lower in the JIA group compared to the healthy control group (p=0.000). Among 26 JIA patients, 61.5% were deficient, 30.8% were insufficient, and 7.7% had normal vitamin D. No significant different in CRP level between vitamin D group (p=0.441), but there was significant different in JADAS-27 (p=0.001). The mean of CRP and JADAS-27 were found highest in vitamin D deficiency group. Vitamin D serum level was negatively correlate with CRP (p=0.021, r=-0.452) and JADAS-27 (p=0.001 r=-0.595).CONCLUSION: Low level of vitamin D in JIA patients was inversely related to higher CRP and disease activity,suggesting that vitamin D supplementation could be havepotential role in JIA treatment.KEYWORDS: vitamin D, CRP, disease activity,JADAS-27, JIA
Current Progress in Adipose Tissue Biology: Implications in Obesity and Its Comorbidities
Authors: Meiliana Anna , Dewi Nurrani Mustika , Wijaya Andi
Published: June 2020

BACKGROUND: Obesity has been decades become a highly interest study, accompanied by the realization that adipose tissue (AT) plays a major role in the regulation of metabolic function.CONTENT: In past few years, adipocytes classification, development, and differentiation has been significant changes. The white adipose tissue (WAT) can transform to a phenotype like brown adipose (BAT) type and function. Exercise and cold induction were the most common factor for fat browning; however batokines such as fibroblast growth factor (FGF)-21, interleukin (IL)-6, Slit homolog 2 protein (SLIT2)-C, and Meteorin-like protein (METRNL) perform a beneficial browning action by increasing peroxisome proliferator-activated receptor gamma coactivator (PGC)-1α protein levels, a key factor to stimulate mitochondrial biogenesis and uncoupling Protein 1 (UCP1) transcription, thus change the WAT phenotype into beige.SUMMARY: AT recently known as a complex organ, not only bearing a storage function but as well as the master regulator of energy balance and nutritional homeostasis; brown and beige fat express constitutively high levels of thermogenic genes and raise our expectation on new strategies for fighting obesity and metabolic disorders.KEYWORDS: obesity, white adipose tissue, brown adipose tissue, beige adipose tissue, inflammation, IR, metabolic disease
Análisis de la sentencia CS Rol 12169-2017 a la luz de la pérdida de la chance
Authors: Inostroza Adasme Sonia
Published: June 2020

El maremoto del año 2010 en Chile registró el mayor número de víctimas fatales asociado a este tipo de desastres en los últimos treinta años en Suramérica1. Por ello, los familiares de un número considerable de personas demandaron al Fisco de Chile. Este trabajo analiza la decisión del tribunal a quo2, de la cual no se pronun­cia el tribunal ad quem3, pero sí lo hace el tribunal de casación, que hacen alusión a la llamada “pérdida de la chance”.
Sustainability Reporting Practices in the Healthcare Products Sector – the Case of Europe and North America
Authors: Berniak-Woźny Justyna , Kwasek Artur
Published: June 2020

The Paper’s goals: For the last two decades, sustainability reporting has increasingly been gaining the attention of managers, and consequently, academicians, too. This is due to the growing interest of a wide range of stakeholders, such as governments, investors, and customers, in non-financial information disclosed by business and public organisations. However, designing and implementing a sustainability report that fits the needs of these different stakeholder groups is a challenge. The differences between the various sectors make this challenge even greater. The focus of this paper will be on the healthcare products sector. The aim of this paper is to investigate the scope and quality of sustainability reporting practices of companies operating in the European and North American healthcare products sector. Research methods: The study is based on the current literature on sustainability reporting and non-financial (NFI) reporting. The empirical part of the paper will be based on a qualitative descriptive research design. Content analysis will be conducted on sustainability reports issued in 2018 and 2019, by 11 European and 8 North American organisations in the healthcare products sector. The nature of the study will be descriptive and based solely on information from secondary data sources. Expected results of the research: This paper will contribute to the international health management literature and to the existing research of sustainability reporting. Based on the findings, the health sector’s sustainability reporting practices will be carefully identified. The authors will also compare the practices of North American and European organisations’, and subsequently, they will define the trends and best practices in this field.
О ЗАКОНЕ РАСПРЕДЕЛЕНИЯ МЕСТОРОЖДЕНИЙ УГЛЕВОДОРОДОВ ПО МАССЕ
Authors: Лившиц Валерий Рафаилович
Published: June 2020

Актуальность исследования обусловлена той, исключительно важной ролью, которую играет вероятностное распределение скоплений углеводородов по массе (усеченное распределение Парето) при количественном прогнозе нефтегазоносности в слабоизученных и зрелых нефтегазоносных бассейнах. Знание этого распределения позволяет осуществлять прогноз количества и суммарных ресурсов углеводородов в любых заданных интервалах крупности, прогноз величины запасов невыявленных скоплений и последовательности их открытий. Цель: для закона распределения залежей углеводородов по массе – усеченного распределения Парето, получить соответствующее вероятностное распределение для месторождений по массе углеводородов. Методы: аналитические методы теории вероятностей, метод статистических испытаний, статистическая обработка эмпирических данных. Объект: нефтегазоносные бассейны, запасы нефти и газа залежей, месторождений, количество залежей в месторождениях, законы распределения скоплений углеводородов по массе. Результаты. Показано, что степенное распределение вероятностей (классическое распределение Парето, усеченное распределение Парето) не может играть роль распределения скоплений углеводородов по массе одновременно и для залежей, и для месторождений. Применение метода статистических испытаний позволило получить условные вероятностные распределения месторождений углеводородов по массе при фиксированном числе залежей в них. На основе обработки эмпирических данных по четырем крупнейшим нефтегазоносным провинциям России (Волго-Уральской, Западно-Сибирской, Тимано-Печорской и Северо-Кавказской) были найдены оценки распределений месторождений углеводородов по количеству залежей в них. Исходя из закона распределения залежей углеводородов по их крупности – усеченного распределения Парето, найден закон распределения углеводородов по массе для месторождений. Показано, что полученное вероятностное распределение, не являясь, строго говоря, степенным, оказывается весьма близким к нему.
РАСЧЕТ PVT-СВОЙСТВ ДОБЫВАЕМОЙ ПРОДУКЦИИ ПО ДЛИНЕ ПОДЪЕМНИКА
Authors: Яхин Артур Рамилевич , Назифуллина Ляйсан Халяфовна , Газизова Эльвина Рустамовна
Published: June 2020

Актуальность. Все технологические процессы, происходящие в пласте, стволе скважины и в системе сбора и подготовки нефти, газа и газоконденсата, требуют знания физико-химических свойств добываемой скважинной продукции. С этими параметрами связаны запасы углеводородов, изменение состава пластовой смеси, темп вторжения воды в залежь, парциальное давление отдельных компонентов, конструкция скважин, гидравлические потери, подбор оптимального режима эксплуатации и т. д. Все технологические процессы добычи, сбора, подготовки и транспортировки сопровождаются непрерывным изменением давления и температуры, которые непосредственно влияют на свойства продукции, «PVT-свойства». Отсутствие представлений о физико-химических свойствах и фазовых превращениях, протекающих при изменении термобарических условий в многокомпонентных системах, приводят к принятию неверных технологических решений, возникновению осложнений в процессе эксплуатации скважин и, как следствие, снижению эффективности разработки месторождения. Поэтому так важно уметь прогнозировать изменение давления и температуры и рассчитывать PVT-свойства по пути движения флюидов. Целью данной работы является расчет и анализ изменения PVT-свойств добываемой продукции и температуры по длине скважины. Методы. Для расчета плотности и вязкости нефти, объемного коэффициента нефти, растворимости и коэффициента сверхсжимаемости применена методика М.Б. Стэндинга, разработанная в США в результате многочисленных исследований проб нефти и газа, для расчета кривой изменения температуры по глубине скважины был использован метод И.Н. Алвеса. Выводы. Растворимость газа линейно увеличивается с ростом давления, который также вызывает увеличение газосодержания и, соответственно, объемного коэффициента. В свою очередь, повышение газосодержания нефти приводит к плавному снижению плотности. С ростом температуры по стволу скважины происходит снижение вязкости нефти. Изменение термобарических условий обуславливает снижение коэффициента сверхсжимаемости по глубине скважины. Методика Алвеса не позволяет точно спрогнозировать изменение температуры по стволу скважины, что объясняется сложностью учета теплофизических свойств горных пород и флюидов.
МОДЕЛИРОВАНИЕ ДИНАМИКИ ТЕПЛОВОГО РЕЖИМА ТУПИКОВЫХ ГОРНЫХ ВЫРАБОТОК С ИСТОЧНИКОМ ВЫДЕЛЕНИЯ ТЕПЛОТЫ
Authors: Казаков Борис Петрович , Шалимов Андрей Владимирович
Published: June 2020

Актуальность исследования обусловлена необходимостью снижения температуры воздуха в тупиковых горных выработках при ведении работ, связанных с выделением большого количества теплоты. Разработка способов нормализации термодинамических параметров рудничного воздуха в забоях на основе построения прогнозных математических моделей изменения теплового режима является необходимым условием обеспечения безопасности труда в горнодобывающей промышленности. Цель: получение зависимостей для определения скорости повышения температуры воздуха в тупиковой выработке при известных величинах интенсивности выделения теплоты и скорости её отведения вентиляционной струёй. Объекты: тупиковые выработки и окружающий породный массив. Методы: решение задачи нестационарного теплообмена рудничного воздуха и породного массива в сопряжённой постановке с помощью преобразований Лапласа; оценка безопасности по газовому фактору интенсификации выноса теплоты из горной выработки путём увеличения подачи воздуха в забой за счёт частично-повторного использования воздуха. Результаты. Проведён анализ проблемы отвода теплоты, выделяющейся при работе оборудования в замкнутом пространстве горных выработок. Показано, что процессов поглощения теплоты породным массивом и её отведения за счёт проветривания может быть недостаточно для обеспечения нормативных значений температуры воздуха. Разработана математическая модель сопряжённого теплообмена воздуха и породного массива, позволяющая прогнозировать повышение температуры с течением времени в зависимости от длины выработки и суммарной интенсивности выделения теплоты в ней. Установлено, что теплообменные процессы продолжительностью в несколько часов могут моделироваться в приближении малых времён, что значительно упрощает расчётные зависимости. Произведён расчёт динамики теплового режима при характерном для шахтных условий наборе физических параметров задачи, результаты которого явились обоснованием сделанного приближения и подтвердили опасность быстрого увеличения температуры воздуха при недостаточной скорости выноса теплоты из выработки вентиляционной струёй. Доказано, что при необходимости дополнительного отведения теплоты можно применять источники тяги высокой производительности с частично-повторным использованием исходящего воздуха без риска увеличения содержания газов в тупиковых выработках.
ПРИМЕНЕНИЕ ТЕХНОЛОГИЙ ГЛУБОКОГО ОБУЧЕНИЯ ДЛЯ ИЗУЧЕНИЯ ШЛИФОВ НА ПРИМЕРЕ УСИНСКОГО МЕСТОРОЖДЕНИЯ НЕФТИ
Authors: Попов Никита Андреевич , Путилов Иван Сергеевич , Гуляева Анастасия Андреевна , Винокурова Екатерина Евгеньевна
Published: June 2020

Статья посвящена разработке методических приемов к применению технологий машинного обучения для решения задач по углубленному анализу геолого-физических параметров на основе результатов лабораторных исследований шлифов керна. Для достижения поставленной цели был разработан специализированный табличный формат описания шлифов керна карбонатных отложений. На основе разработанного формата сформирована база данных для последующего анализа и применения технологий глубокого и поверхностного обучения. В качестве объекта исследования выбрана пермокарбоновая залежь Усинского месторождения, расположенного в Республики Коми. Технология глубокого обучения была применена с целью получения математической модели прогноза ряда геологических параметров по фотографиям шлифов. В качестве основного примера был рассмотрен прогноз восьми классов по Данему, выделяемых по шлифам. Разработанный формат позволяет все текстовые описания геологических характеристик шлифа представить в табличном виде с дискретной кодировкой. Табличное представление даёт ряд преимуществ. Во-первых, это позволяет выполнять математико-статистический анализ описания шлифов; во-вторых, можно формировать базу для анализа, используя результаты работы разных авторов, включая фотографии шлифов; в-третьих, дает возможность сопоставлять и анализировать параметры, полученные по шлифам с другими результатами исследований кернов. На примере пермокарбоновой залежи Усинского месторождения по разработанному формату была сформирована уникальная база по данным более 1000 шлифов из 6 скважин. Дополнительно к описаниям шлифов в базу данных была загружена информация по результатам лабораторных исследований различных геолого-физических параметров, полученная на образцах керна из тех же интервалов, что и шлифы. На основании сформированной базы данных было получено соотношение газопроницаемости и пористости с категоризацией точек по классификации Данема на пермокарбоновой залежи Усинского месторождения. Сформированная база данных описаний шлифов связана и с фотографиями шлифов, что, в свою очередь, позволяет применять современные технологии компьютерного зрения, основанные на глубоком обучении, для анализа и прогноза параметров шлифов. В результате проведенных экспериментов была получена модель, которая позволяет по фотографии шлифа выделять геологические параметры. На сегодняшний день работы по пополнению базы и совершенствованию модели продолжаются, но полученная модель уже используется как инструмент, ускоряющий процесс анализа шлифов.
ТЕХНИЧЕСКИЕ РЕШЕНИЯ ПО ОЦЕНКЕ УРОВНЯ ЖИДКОСТИ В НЕФТЕДОБЫВАЮЩИХ И ВОДОЗАБОРНЫХ СКВАЖИНАХ
Authors: Денисламов Ильдар Зафирович , Гималтдинов Ильяс Кадирович , Якубов Равиль Наилевич , Денисламова Алия Ильдаровна
Published: June 2020

Актуальность исследования следует из необходимости оценки динамического уровня жидкости в нефтедобывающих и водозаборных скважинах с необходимой частотой. Измерения уровня жидкости в скважинах различного назначения необходимы для контроля разработки нефтяной залежи, оценки эффективности воздействия на продуктивный пласт и обеспечения безаварийной эксплуатации глубинного скважинного насоса. Информация об уровне жидкости востребована несколькими службами нефтегазодобывающего предприятия, а выполнение таких измерений может рассматриваться как одна из функций интеллектуальной скважины. Цель: поиск и обоснование альтернативных методов определения уровня жидкости в межтрубном пространстве нефтедобывающих и водозаборных скважин. Измерения должны проводиться с необходимой периодичностью без привлечения персонала предприятия в скважинную зону. Объектом исследования являются нефтедобывающие и водозаборные скважины, снабженные датчиками давления, генераторами и приемниками акустических волн и вторичными приборами по передаче скважиной информации на рабочие места персонала предприятия. Методы исследования основаны на общеизвестных законах физической гидродинамики и методах математической статистики. В результате исследования установлено, что звукометрический метод определения динамического уровня жидкости в межтрубном пространстве скважины имеет погрешность измерений в действующих нефтедобывающих скважинах из-за непостоянства состава попутного нефтяного газа по времени эксплуатации скважины и по глубине насосно-компрессорных труб на фиксированный момент времени. Предложены альтернативные методы измерений, основанные на генерации акустических волн в различных средах и измерении давления в межтрубном пространстве по датчикам на стационарной основе.
Fulfilment of personal potential by high school graduates in time of career choice
Authors: Romanova Evgenya S. , Bershedova Ludmila I. , Tolstikova Svetlana N. , Rychikhina Elina N. , Morozova Tatiana Yu
Published: June 2020

The paper presents results of the desktop analysis on the current status of the problem of the personal potential in terms of psychology. It provides the author's understanding of the term as the formation consistent and structured in its psychological aspect. This is the analysis of the characteristics that the career choice has and the difficulties that the graduates face in this process. We believe that substantial resources for the independent and responsible career choice are inherent in the personal potential. According to the research methods, the structure of the personal potential includes intra and interpsychological characteristics. Internal factors relate to the non-acceptance of the choice situation, the lack of skills that are necessary for subjective construction of its process. They also come from hesitation, lack of confidence, poor self-concept, internal conflicts, low community commitment, etc. In most cases, the powerful influence of relevant adults is an external obstacle. The data obtained justify a need in psychological and education counseling to develop the personal potential of graduates. In this regard, one of the main tasks is to provide graduates with competent and comprehensive support to overcome difficulties in the process of making the career choice and personal potential development.        

Keywords: personal potential, career choice, personâ€™s social resources, individual opportunities, commitment of graduates, self-control resources;
PEACE ADVOCACY AND THE BASIS OF BUILDING FOREIGN RELATIONS OF ISLAMIC STATES IN THE QURAN
Authors: Hamoda Mahmoodalnor
Published: June 2020

This study addressed the knowledge of the peace advocacy and building foreign relations of Islamic states in the Holy Quran. Whoever reads the book of Allah almighty may find it full of the vocabulary of peace advocacy, and relations between nations and people. The study included examples mentioned in the Holy Quran showing the need for peace and the foundations of building relations between nations and people. It addressed the meanings of peace advocacy and its importance.  It also showed that the peace advocacy and Islam call of prophets and messengers (peace be on them) and the way of the righteous and reformers. The origin in the relationship of Muslims to others is peace and the call to God, not war, and not fighting. Islam is a religion of mercy and happiness for humanity, and it is not spread by the sword, but by proof, argument, wisdom and good preaching. With this peace advocacy and peace that the Quran has guided us to, love and communication will replace hatred and result in intimacy between Muslim and non-Muslim communities. The results of the study showed that the importance of preachers need in this era and save life from evil and sedition. Thus, the society is safe from conflicts, peaceful and reformed.
Hospital Care Practices Associated With Exclusive Breastfeeding 3 and 6 Months After Discharge: A Multisite Study
Authors: Crenshaw Jeannette T. , Budin Wendy D.
Published: June 2020

Maternity care practices influence breastfeeding outcomes long after women leave the birth setting. We conducted this study to describe, from mothers' perspective, maternity care practices associated with breastfeeding at 3 and 6 months. Mothers who recalled having skin-to-skin care (SSC) and rooming-in for 23 or more hours/day were more likely to report exclusive breastfeeding when surveyed at 3 months. Perception of not enough milk and difficulty latching explained more than 85% of supplementing and weaning at 3 months. Women also reported that returning to work influenced their decision to supplement or wean. Our multisite study supports implementing low cost and evidence-based interventions such as immediate and uninterrupted SSC and rooming in to improve breastfeeding exclusivity. Findings highlight the ongoing need to bridge the gap between hospital discharge and community breastfeeding support, including workplace accommodations.
Editorial
Authors: Becerra Mayorga Witton
Published: June 2020

Regreso a la revista La Palabra como editor después de 5 años de estar fuera de la universidad. He de

confesar que muchas veces creí que para mí esa era una etapa superada y que no volvería a esta labor.

Sin embargo, las necesidades de la universidad y la revista me motivaron a aceptar nuevamente este

trabajo.

En el año 2011 cuando llegué a la revista propuse su reactivación y desde entonces la revista está

vigente, ha crecido y se ha hecho independiente. Los procesos de recepción de artículos, de evaluación

por pares y de publicación son autónomos y se ejecutan de manera eficiente. El trabajo hecho en los

primeros años, las indexaciones, los números editados que permitieron su indexación en diversas bases

de datos e índices, permitieron que la revista llegue a donde se encuentra hoy, a saber, su consolidación

como una revista internacional de literatura.
MALAYSIA AND MAHATHIR IN THE GLOBAL CHALLENGE
Authors: Sigit Sigit
Published: June 2020

The aim of this study is to analyze Mahathir’s policy through a historical approach to the political developments and challenges in Malaysia. In addition, the author uses secondary data in order to collect several resources related to the topic. The comeback of Mahathir Mohammad, the Father of Malaysian modernization, in the Malaysian 14th general election after leaving the political stage for more than a decade draws many global eyes. As the great critics of the corruption and downturn of Malaysian economic conditions, he decided to run in Malaysia once again. During his previous administration, his mega-project named Pembangunan Putra Jaya and his famous foreign policy “Look East Policy” became a part of his identity. The “Look East Policy” was developed in order to increase domestic economic growth and because Malaysia needed to learn and adopt cultural features from Japan and Korea, such as discipline and hard work. Through this policy, Malaysia began cooperating with East countries (Japan and Korea). In addition, Mahathir had been opposing Western values and deemed them incompatible with Asia. The West considers Mahathir to be an obstacle in uniting Western and Asian countries following the emergence of Asian values since the 1990s. Overall, this study suggests that Mahathir is only focused on his country’s national interest and sovereignty and maintaining Malaysia’s international standing.

Bahasa Indonesia Abstract: Tujuan paper ini adalah untuk menganalisis kebijakan Mahathir melalui perspektif sejarah terhadap perkembangan politik dan tantangan di Malaysia. Selain itu, Penulis menggunakan data sekunder untuk mengumpulkan berbagai literatur terkait dengan topik tersebut. Kembalinya Mahathir Muhammad, Bapak Modernisasi Malaysia, dalam Pemilihan Umum ke-14 setelah meninggalkan panggung politik lebih dari satu dekade telah menarik perhatian masyarakat global. Sebagai kritikus pada korupsi dan kemunduran ekonomi Malaysia, dia memutuskan untuk maju dalam pemilihan umum sekali lagi. Selama pemerintahan sebelumnya, Mahathir dengan proyek megah yaitu Pembangunan Putra Jaya dan kebijakan luar negerinya, terkenal dengan  “Look East Policy” menjadi bagian dari identitasnya.  Kebijakan “Look East Policy” dikembangkan untuk meningkatkan pertumbuhan ekonomi domestik dan karena Malaysia perlu belajar dan mengadopsi budaya dari Jepang dan Korea, seperti kedisiplinan dan kerja keras. Melalui Kebijakan tersebut, Malaysia telah melakukan kerjasama dengan negara Timur (Jepang dan Korea). Selain itu, Mahathir menolak penerapan nilai-nilai Barat dan menganggap bahwa nilai Barat tidak sesuai dengan Asia. Negara-negara Barat menganggap Mahathir sebagai penghalang persatuan negara Barat dengan negara Asia sejak berkembangnya paham “Asian Values” pada tahun 1990an. Secara Keseluruhan, paper ini berpendapat bahwa Mahathir hanya fokus kepada kepentingan dan kedaulatan negaranya dan menjaga eksistensi Malaysia di dunia internasional.

 
On M-unambiguity of Parikh matrices
Authors: Teh Wen Chean
Published: June 2020

The Parikh matrix mapping was introduced by Mateescu et al. in 2001 as a canonical generalization of the classical Parikh mapping. The injectivity problem of Parikh matrices, even for ternary case, has withstanded numerous attempts over a decade by various researchers, among whom is Serbanuta. Certain M-ambiguous words are crucial in Serbanuta's findings about the number of M-unambiguous prints. We will show that these words are in fact strongly M-ambiguous, thus suggesting a possible extension of Serbanuta’s work to the context of strong M-equivalence. In addition, initial results pertaining to a related conjecture by Serbanuta will be presented.
On locating-dominating number of comb product graphs
Authors: Pribadi Aswan Anggun , Saputro Suhadi Wido
Published: June 2020

We consider a set D ⊆ V(G) which dominate G and for every two distinct vertices x, y ∈ V(G) \ D, the open neighborhood of x and y in D are different. The minimum cardinality of D is called the locating-dominating number of G. In this paper, we determine an exact value of the locating- dominating number of comb product graphs of any two connected graphs of order at least two.