bluuebunny/crossref_metadata_2025 huggingface dataset:
Doença de Crohn: piora das manifestações clínicas por doenças psíquicas
Authors: Stachechem Simone Kempf , Mendonça Ariany Parreira de , Guedes Branca Lopes da Silva , Carneiro Caroline Kugeratski , Gazzoni Gabriela Aparecida Schiefler , Lima Layla Gabriela Alves de , Botelho Letícia Lourenço , Dupont Patricia , Carrijo Victoria Martins , Leite Nestor Augusto Avelino
Published: July 2021

Objetivo: Abordar as principais consequências do estresse na piora das manifestações clínicas da Doença de Crohn (DC), destacando a relevância do cuidado integral ao paciente. Revisão bibliográfica: A DC é crônica e idiopática, com capacidade de afetar qualquer segmento do trato gastrointestinal, caracterizada pelo espessamento globoso resultando em ulcerações e fístulas, podendo evoluir para um quadro mais grave com perfurações e até tumores intestinais. O diagnóstico envolve dados clínicos, achados endoscópicos e radiológicos. A incurabilidade da doença e de sua sintomatologia podem fazer com que os pacientes desenvolvam transtornos psiquiátricos devido ao futuro incerto, causando angústia e sofrimento, essas expectativas sobre a condição refletem diretamente na ansiedade, depressão e qualidade de vida dos portadores da DC. Não tratar os sintomas psíquicos associados à DC repercute em piora significativa do quadro clínico do paciente, afetando consideravelmente a sua qualidade de vida. Considerações finais: Reforça-se a importância da equipe multidisciplinar na abordagem e tratamento de pacientes portadores desta patologia, com o objetivo de garantir a assistência psicológica dos acometidos, melhorando, assim, o prognóstico e a qualidade de vida desses pacientes.
Fatores que levam a alta incidência da síndrome de Burnout nos profissionais da enfermagem
Authors: Vilaço Raimunda Liliane Beleza , Gonçalves Daiane , Silva Vanderson Ferreira da , Vetorazo Jabneela Vieira Pereira
Published: July 2021

Objetivo: Identificar os fatores que levam a alta incidência da síndrome de Burnout nos profissionais da enfermagem, bem como, entender mecanismos fisiológicos e a atenção à saúde no contexto do enfermeiro. Métodos: Desenvolveu-se revisão integrativa da literatura, qualitativa/qualitativa, efetivada entre os meses de Janeiro 2021 a Abril 2021, fazendo uso das bases de dados da Acervo+, Literatura Internacional em Ciências da Saúde (PUBMED), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), na Biblioteca Eletrônica Científica Online (SciELO) e Biblioteca Virtual em Saúde (BVS), sendo incluídos publicações que estavam disponibilizadas na íntegra, livre acesso, nos idiomas português, inglês e espanhol, no período entre 2015 a 2020. Resultados: Encontraram-se 114 artigos nas bases de dados, e após a aplicação dos critérios de exclusão, selecionados 21 artigos para subsidiar a revisão de literatura. Considerações Finais: Os fatores desencadeadores do Burnout evidenciados nesse estudo foram, entre outros, sobrecarga laboral, baixa remuneração, condições inadequadas de trabalho, ausência de Equipamentos de Proteção Individual, ambiente de trabalho conflituoso.
Interações medicamentosas relacionadas a associações de antimicrobianos em um hospital de média complexidade
Authors: Gaspar Felipe Andrade , Pereira Daniel Tarciso Martins , Silva Betânia Braga da , Rodrigues Hidelbrando Ferreira
Published: July 2021

Objetivo: Identificar potenciais interações medicamentosas, ocasionadas pelo uso concomitante de mais de um antimicrobiano, que possam comprometer a segurança de pacientes internados em um hospital de média complexidade. Métodos: Tratou-se de um estudo transversal, retrospectivo, realizado mediante análise de prescrições de antimicrobianos dispensados a pacientes internados em unidade hospitalar, cujos dados coletados foram analisados e interpretados por meio de estatística descritiva e teste qui-quadrado, após aprovação pelo CEP-UFAM (CAAE 01581318.2.0000.5020). Resultados: As variáveis demonstraram prevalência de internações na clínica médica, pacientes do gênero feminino, prescrições de beta-lactâmicos e interações medicamentosas associadas a prescrição combinada de antimicrobianos. Identificou-se, ainda que as interações medicamentosas ocorreram principalmente em razão de erros de prescrição e pela não adesão aos protocolos clínicos institucionais. Conclusão: Portanto, faz-se necessário consolidar as ações da Comissão de Controle de Infecção Hospitalar (CCIH), buscando-se reduzir o uso irracional de antimicrobianos, e consequentemente, ampliar os padrões de segurança para aos pacientes.
Entendimento e adesão dos jovens às medidas de restrição social na pandemia de COVID-19
Authors: Leite Thais Gontijo Goulart , Mafra Sofia Cunha , Araújo Rafael Fagundes dos Anjos , Silva Eduardo Mariano de Oliveira Melo e , Cardoso Ana Maria de Jesus
Published: July 2021

Objetivo: Identificar a compreensão e a adesão da população adulta jovem às medidas de isolamento, bem como a consciência de sua posição enquanto propagadora da doença e de formação de opinião. Métodos: Estudo observacional transversal com aplicação de questionários online via rede social no período de junho a julho de 2020. Resultados: 290 questionários de uma população majoritariamente jovem de 18 a 40 anos, feminina, com alta escolaridade e estratificados pela área de atuação - área da saúde ou não. Foi observada diferença significativa na comparação entre o número de dias em que os indivíduos saíram de casa com o gênero, área de atuação e adesão correta às medidas de isolamento. Houve uma diferença na adesão referida entre as faixas etárias (p = 0,021) e um percentual expressivo de indivíduos que se informam por meio de redes sociais 64,8%, não sendo encontrada diferença entre a área de atuação para a fonte de informação utilizada (p=0,055). Conclusão: Bom grau de compreensão é observado quanto à importância das medidas de isolamento social, porém a adesão é inconsistente entre as faixas etárias, o que pode refletir o novo padrão etário de acometimento da onda de infecções em 2021.
Nâng cao hiệu quả tản nhiệt và tuổi thọ của vi xử lý bằng phương pháp sử dụng kem tản nhiệt gia cường graphen
Authors: Thắng Bùi Hùng
Published: July 2021

Ngày nay, sử dụng kem tản nhiệt là phương pháp phổ biến giúp nâng cao hiệu quả trao đổi nhiệt tại lớp tiếp giáp giữa bề mặt nguồn nhiệt và bộ phận tản nhiệt. Độ dẫn nhiệt của lớp kem trở thành yếu tố then chốt quyết định hiệu suất tản nhiệt cho các linh kiện điện tử công suất lớn đặc biệt là vi xử lý máy tính (CPU). Graphen được biết đến là vật liệu sở hữu nhiều đặc tính ưu việt và khả năng dẫn nhiệt cao với độ dẫn điện của graphen đơn lớp lên đến 5200 W/mK (so với độ dẫn nhiệt của ống nano cacbon 2000 W/mK và Bạc 410 W/mK). Điều này đã cho thấy rằng graphen là một trong số những vật liệu tiềm năng nhất để gia cường cho kem tản nhiệt. Trong bài báo này, chúng tôi trình bày những kết quả thu được trong chế tạo kem tản nhiệt chứa thành phần graphen và thử nghiệm ứng dụng làm vật liệu giao diện nhiệt cho bộ xử lý Intel Core i5. Kết quả khảo sát hiệu quả tản nhiệt cho thấy với kem tản nhiệt chứa 1% graphen thì nhiệt độ hoạt động của vi xử lý giảm 4℃ tương ứng với tuổi thọ thiết bị tăng 40% so sánh với khi dùng kem silicon thông thường.
Clinical Legal Education and its Implication on Legal Education System in Pakistan: Challenges and Prospects
Authors: Zahoor Rashida , Akhtar Naureen , Habib Rao Imran
Published: July 2021

Purpose: To improve the standard of legal education, legal clinic is one of the modern techniques. Legal profession is a noble profession as it is considered to uphold the justice in a society. A law student may be taught in a such manner that he must be well equipped with professional skills.

Methodology: Previous studies have been discussed with the help of current data for thorough review of challenges in Pakistan. 

Findings: In Pakistan, legal education system needs many reforms in order to produce good lawyers. Without professional skills and practical knowledge; a law graduate is unable to utilize his degree in a proper manner. To attain such professional skills; legal clinics are good approach. Where students may be able to seek practical knowledge and also helping the deserving people. LL. B degree awarding institutions shall make it possible to provide clinical legal education. Law clinics must be installed in law faculties where the experts may be available to educate students.

Implications: In this paper, the importance of law clinic is discussed and certain issues are highlighted which are prevailing in current legal education system of Pakistan. Study can help out policy makers to identify challenges and to overcome these issues they can formulate different strategies.
Legal, Administrative and Judicial Framework in Pakistan to Combat Tax Evasion and Money Laundering: An Analytical Study
Authors: Khan Aamir , Akhtar Naureen
Published: July 2021

Purpose: The main objective of this research paper is to look at Pakistan's legal, administrative, and judicial framework in terms of countering money laundering and tax evasion. Money laundering and tax evasion are two financial crimes that have been linked, either directly or indirectly, to one other. Money laundering was formerly solely associated with the crimes of narcotics trafficking and terrorism financing. At present, it has been also associated with tax evasion.

Methodology: The framework regarding tax evasion and money laundering is varied. In Pakistan, two different mechanisms exist to combat both crimes. This article analytically studies the parliamentary statutes and ordinance, the working of investigating and prosecuting agencies and judicature structure concerning tax evasion and money laundering in Pakistan.

Findings: This article concludes that the problem of tax evasion and money launder are causing financial instability in Pakistan. There is an urgent need of revamping the current tax administration to detect tax evasion and frauds.

Implication: this article recommends potential reforms in the existing legal, administrative and judicial framework to control and curb both crimes more effectively.
Noncommunicable disease, clinical course and COVID-19 prognosis: results based on I-CORE Registry
Authors: Javanmard Shaghayegh , Mohammadifard Noushin , Nasirian Maryam , Vaseghi Golnaz , Heidari Kamal , Kelidari Behrouz , Changiz Tahereh , Sarrafzadegan Nizal
Published: July 2021

Background: There are no data on the association between clinical course and comorbidity in Iranian patients with COVID-19. Aims: To determine noncommunicable disease (NCD), clinical characteristics and prognosis of patients hospitalized with COVID-19 in Isfahan, Islamic Republic of Iran. Methods: This multicentric retrospective observational study was performed on all patients hospitalized with COVID-19 in Isfahan from 17 February to 6 April 2020. We recruited 5055 patients. Data on clinical course and comorbid NCDs such as hypertension, coronary heart disease (CHD), diabetes mellitus (DM), cancer, chronic kidney disease (CKD) and chronic respiratory disease (CRD) were collected. Statistical analyses were done by Mann–Whitney U, χ2 and logistic regression tests using Stata version 14. Results: DM and hypertension were the most prevalent comorbidities in patients with positive and negative reverse transcription polymerase chain reaction (RT-PCR). Odds ratio (95% confidence interval) of mortality-associated factors was significant for DM [1.35 (1.07–1.70)], CHD [1.58 (1.26–1.96)], CRD [2.18 (1.58–3.0)], and cancer [3.55 (2.42–5.21)]. These results remained significant for cancer after adjustment for age, sex and clinical factors. Among patients with positive RT-PCR, death was significantly associated with CRD and cancer, while this association disappeared after adjustment for all potential confounders. There was a significant association between NCDs and higher occurrence of low oxygen saturation, mechanical ventilation requirement and intensive care unit admission after adjustment for age and sex. Conclusion: The presence of NCDs alone did not increase mortality in patients with COVID-19, after adjustment for all potential confounders including clinical factors.
Fungsi Mediasi Kepercayaan pada Pengaruh Kepuasan terhadap Loyalitas Pelanggan
Authors: Yudi Wahyudi , Nurmiati Nurmiati , Farild Miftha , Bakhtiar Fauziah
Published: July 2021

The purpose of this study is to verify the mediating role of trust on the linkage of customer satisfaction toward customer loyalty. The data for this study were collected through a survey of 216 bank customers in Makassar, and the responses were analyzed to assess the linkage of customer satisfaction toward customer loyalty with trust as mediating variable. The research findings indicate that in the banking industry, customer satisfaction and trust positively effect on customer loyalty. In addition, trust has not mediation effect between customer satisfaction and loyalty. This means that to increase customer loyalty, the banking industry must provide good service to customers, and pay strong attention to customer satisfaction and trust as well. Finally, this study makes an important contribution to the existing literature by conducting empirical research on the linkage among customer satisfaction, trust and customer loyalty.
Capabilities of cardiac magnetic resonance imaging and magnetic resonance angiography of the great vessels in children with transposition of the great vessels
Authors: Malov A. A. , Kalinicheva Y. B. , Sadykova D. I. , Krasnoperova O. V. , Petrushenko D. Yu. , Melnikova Y. S.
Published: July 2021

Aim. To demonstrate the capabilities of magnetic resonance imaging (MRI) and magnetic resonance (MR) angiography in the complex examination of patients with various types of transposition of great arteries (TGA) at the pre- and postoperative stages.

Material and Methods. A total of 38 MRI studies of the heart and blood vessels were performed in 33 patients with various forms of transposition of great vessels.

Results. The main purpose of MRI was to identify postoperative complications after arterial switch operation for simple TGA. Cicatricial changes in the wall of the left ventricle were revealed in two patients, which was the basis for coronary angiography. Coronary angiography revealed no significant coronary artery stenosis requiring surgical intervention. The aortic root was dilated to an average of + 2.85 Z-score in six patients after arterial switch operation, which required further dynamic observation. Stenosis of the branches of the pulmonary artery due to the use of the Lecompte maneuver was revealed in one patient. Heart catheterization was performed according to the results of MRI. Invasive pressure measurement revealed neither significant stenosis nor indications for surgical treatment. MRI data were used as one of the criteria for anatomical correction readiness in group of patients with congenitally corrected transposition of the great vessels, along with data of echocardiography and heart catheterization.

Conclusion. MRI and MR angiography are the “gold standard” in the pre- and postoperative examination of patients with various forms of TGA . Using MR angiography, it is possible to carry out morphometry and clarify the spatial arrangement of vessels including that after correction of TGA. In most cases, MRI allows to correctly differentiate the morphology of the heart chambers and their relative position. It also allows to perform volumetry and to assess the parameters of local and global contractile function of the ventricles, which is essential for preoperative assessment and dynamic observation at all stages of correction.
Experience of rehabilitation in children with chronic pyelonephritis living in industrial city
Authors: Fatkina J. V. , Stepanenko N. P. , Berestneva O. G. , Lyzin I. A.
Published: July 2021

The consistently high frequency of pathology of urinary system in children dictates the need to find new methods for the treatment and prevention of pyelonephritis.

Goal. To study clinical and laboratory indicators of health status in children with chronic pyelonephritis living in the industrial city of Tomsk and evaluate the effectiveness of various rehabilitation treatment regimens.

Material and Methods. The kidney and urology examinations were performed in 58 children with a diagnosis of chronic pyelonephritis aged 7 to 12 years. Two treatment schemes including administration of mineral water and physiotherapy were used.

Results and Discussion. The following symptoms were detected before treatment: oxaluria in 22.41% of children, microhematuria in 17.24% of children, significant increase in serum and morning urine nitrate/nitrite levels, and microalbuminuria suggesting the instability of cell membranes and inflammatory process in renal tissue.

Conclusion. The administration of low-mineralized magnesium-sodium chloride-sulfate water in combination with physical therapy, manual massage, sapropel applications, interference therapy, and enteric oxygen therapy lead to normalization of clinical and laboratory health status indicators in the main group of patients.
Pendampingan Pemenuhan Asupan Nutrisi Saat Pandemi COVID-19 Pada Orang Dewasa Perkotaan
Authors: Megawati Ginna , Marhaeni Diah Herawati Dewi
Published: July 2021

Adults in urban areas were at high risk of infected by a virus caused by COVID-19. This community service aims were to educate the target group's so they can change for better attitudes towards balanced diet recommendations for pandemics time.  Using the service-learning method, virtual education has been carried out in the form of audio-visual videos was proven to be able to improve a positive attitude for following balanced diet recommendations.
Skill and Knowledge Improvement Training on Honey and Propolis Commercialization in Central Bangka Regency
Authors: Utama Gemilang Lara , Mahani Mahani , Djali Mohamad
Published: July 2021

The development of honey and propolis as commercial commodities from Central Bangka Regency meet an obstacle considering the technology and marketing target. In order to develop the potential of honey and propolis as commercial products from Central Bangka Regency, identification, technical training and monitoring has been done as the methodology. The results shows identification of Honey and Propolis productivities showed that estimated 19,785 kg / year honey, 3,957 kg / year propolis, with total Kelulut colonies of more than 3957 colonies will resulted. Meanwhile the quality aspect of Kelulut honey found diastase enzyme activity of 1.68 DN, with propolis quality shown polyphenol levels reaching 2587.95 mg / kg with the characteristics that preferred by consumers and industry. Training and monitoring could increase the skill and knowledge of farmer groups
“She Has a Vocabulary I Just Don’t Have”: Faculty Culture and Information Literacy Collaboration
Authors: Caffrey Gardner Carolyn , White-Farnham Jamie
Published: July 2021

The authors describe difficulties pertaining to discipline-specific discourse and identity among collaborators during the process of revising the information literacy component of a first-year writing program. Hardesty’s term “faculty culture” offers a frame through which to understand resistance and tension among otherwise engaged faculty and situates this experience within the uncomfortable history between faculty and librarians who may be perceived as “inauthentic” faculty. The authors suggest ways to improve communication between librarians and writing program faculty when collaborating on information literacy instruction.
Effect of group problem-solving skills training on the severity of aggression in patients with bipolar I disorder
Authors: Vaghee Saeed , Eshaghzadeh Maliheh , Vashani Hamidreza Behnam , Asgharipour Negar , Namaghi Seyed Mohammd Eshaghzadeh
Published: July 2021

Introduction:
Psychological interventions can help prevent patients’ problems by increasing insight.

Aim:
This study was aimed to determine the effect of problem-solving skills training on the severity of aggression in patients with bipolar I disorder.

Material and methods:
In this randomized controlled trial, we enrolled 60 patients with bipolar I disorder admitted to Ibn Sina Psychiatric Hospital in Mashhad during 2018. The patients were assigned to the two groups of intervention (n = 30) and control (n = 30). In addition to pharmacological therapy, the intervention group attended six 45-minute problem-solving group training sessions, while the control group received medication alone. The data collection instrument was the Buss and Perry aggression questionnaire (BPAQ), which was filled out before and a month after the intervention.

Results and discussion:
In the pre-intervention phase, there was no significant difference in the mean score of aggression between the problem-solving skills training and control groups (119 ± 5.6 vs. 120.5 ± 8.5; P = 0.222); while, the total score of aggression after the intervention was significantly different between two groups (86.9 ± 5.5 vs. 120.2 ± 5.8; P <0.001).

Conclusions:
Problem-solving skills training can reduce the severity of aggression in patients with bipolar disorder. It is recommended that these skills used in individual and family care for patients with bipolar I disorder.
Fotografía, ciudad y sillares: el centro de Monterrey en la lente de Fausto Tovar Martínez
Authors: Sánchez-Macedo Jaime
Published: July 2021

Para inaugurar esta sección de la revista Sillares se eligió comenzar por la reseña de un documento fotográfico doblemente pertinente. Por un lado, se trata de una toma con el aura particular que identifica las fotografías del centro de Monterrey, capital del estado de Nuevo León en México, antes de la edificación del megaproyecto de espacio público conocido popularmente como Macroplaza.
Numerical Solution of Radioactive Core Decay Activity Rate of Actinium Series Using Matrix Algebra Method
Authors: Pratiwi Anita Puji , Prihandono Trapsilo , Prastowo Sri Handono Budi
Published: July 2021

The Actinium 235 series is one of the radioactive series which is widely used as a raw material for reactors and nuclear activities. The existence of this series is found in several countries such as West USA, Canada, Australia, South Africa, Russia, and Zaire. The purpose of this study was to determine the activity value and the number of radioactive nucleus decay atoms on the actinium 235 rendered in a very long decay time of 4.3 x 109 years. The decay count in this study uses an algebraic matrix method to simplify the chain decay solution, which generally uses the concept of differential equations. The solution using this method can be computationally simulated using the Matlab program. This study indicates that the value of the decay activity experienced by each element in this series is the same, which is equal to 2,636 x 1011 Bq. This condition causes the actinium 235 series to experience secular equilibrium because the half-life of the parent nuclide is greater than the nuclide derivatives. The decay activity of the radioactive nucleus under the actinium 235 series is strongly influenced by the half-life of the nuclides, the decay constants, and the number of atoms after decay
The Effect of Using e-module Model Problem Based Learning (PBL) Based on Wetland Environment on Critical Thinking Skills and Environmental Care Attitudes
Authors: Aufa Mohamad Nor , Rusmansyah Rusmansyah , Hasbie Muhammad , Jaidie Akhmad , Yunita Amalia
Published: July 2021

This study aims to analyze the effect of using an E-module with a wetland environment-based PBL model on students' critical thinking skills and environmental care attitudes. This study was a quasi-experimental study with a non-equivalent posttest only control group design. The study population was 150 students, while the sample was selected by random sampling. The number of samples in this study was 64 students who were divided into two classes. The instrument used was a test, namely a question of critical thinking skills in the form of an essay and a non-test in the form of a questionnaire for environmental care attitudes. The collected data were analyzed by using Multivariate Analysis of Variance. The results showed that the significance of the three hypotheses was 0.000, which means less than 0.05 (0,000 <0.05). So, it can be concluded that there is a positive effect of using the E-module with the PBL model on critical thinking skills and environmental care attitudes. The novelty of this study integrates the wetland environment in the learning process using teaching materials in the form of E-modules in the learning process of the topic of acid-base solutions on critical thinking skills and environmental care attitudes of students
Two Indianists and a Commission. Carlo Formichi, Oreste Nazari and the Progress of Sanskrit Studies in Italy
Authors: Crisanti Alice
Published: July 2021

This paper aims to retrace a piece of the history of Indian studies in Italy between the 19th and 20th centuries. Specifically, it builds on the unpublished documents from the works of the October 1905 Examination Commission – consisting of Michele Kerbaker, Emilio Teza, Fausto Gherardo Fumi, Paolo Emilio Pavolini, and Ernesto Giacomo Parodi – tasked with assessing the scientific and academics titles of Carlo Formichi and Oreste Nazari, who had held temporary Sanskrit chairs in Pisa and Palermo since 1901, in view of promoting them to tenured positions. This is a valuable case-study to understand the dynamics of the development of Indian studies in post-unification Italy, as well as the reciprocal influences between scholars and the reception of contemporary publications in the Orientalistic field.
Negotiating ‘Asianness’ at the Tokyo International Film Festival
Local, Regional and International Dynamics Through Programming Practices and Film Markets
Authors: De Angelis Eugenio
Published: July 2021

In this paper I will trace a brief history of major Asian film festivals to understand how the notion of ‘Asianness’ evolved over time and how it is expressed nowadays through programming practices and film markets. Then I will focus on the case study of the Tokyo International Film Festival (TIFF) as a problematic site where cultural and economic dynamics converge. As an A-category festival, TIFF has to balance its international status with regional relevance, negotiating ‘Asianness’ in a complex relationship involving the local film industry, since questions on ‘Asian cinema’ are deeply linked to the national. Finally, I will draw some conclusions, discussing how TIFF relates to other major film festivals in Asia, where ‘Asianness’ has been used as a shared effort to distinguish themselves from the paradigm set by European film festivals. However, this is an ongoing process, TIFF struggles to use ‘Asianness’ as a unifying element and the specific interests of each festival obstruct the possibility to create a more systematic trans-Asian model.
VaSto: un’edizione digitale interdisciplinare
Authors: Brancato Dario , Corbellini Milena , Italia Paola , Pasqual Valentina , Priore Roberta
Published: July 2021

The paper focuses on a case of interdisciplinary digital edition, developed in collaborative mode, whose ecdotic and interpretative innovations are analyzed. The edition – produced as part of the VaSto project – is dedicated to Benedetto Varchi’s Storia fiorentina, which traces the events that took place in Florence between 1527 and 1538, commissioned by the Duke of Florence Cosimo I de’ Medici in 1546, left unfinished and published only in 1721 in a version censored by Cosimo’s circle. Due to the wealth of data on Florentine life at the time, it is considered a valuable source for scholars, historians and art historians, but the original version is still unpublished.
Improving the properties of plasma heat-resistant coatings by means of spraying materials that reacting with exothermic effects
Authors:   National University of Oil and Gas “Gubkin University”, Gusev V. M. , Elagina O. Yu. ,   National University of Oil and Gas “Gubkin University”, Buklakov A. G. ,   National University of Oil and Gas “Gubkin University”
Published: July 2021

The quality of heat-resistant coatings deposited by flame spraying is largely determined by the adhesion of the coating to the surface of the part. One of the ways to increase adhesion is to deposition intermediate layers of thermosetting powders between the base material and the coating. In this work, two versions of heat-protective coatings are investigated — a two-layer coating consisting of an Al – Ni sublayer (20 – 80 wt. %) and a main ZrO2 layer, and a single-layer coating sprayed from an aluminum-clad zirconium oxide powder (20 ZrO2 – 80 Al, wt. % ). The method of differential thermal analysis was used to determine the temperature ranges and values of the exothermic effects of oxidation and redox reactions during heating of Al – Ni and ZrO2 clad powders. A significant exothermic effect was found during oxidation of the aluminum cladding shell in the temperature range of 360 °C and a stronger thermal effect due to the redox reaction at a temperature of 920 °C. The microstructure and microhardness of the obtained coatings have been studied, and their thermal conductivity and adhesion have been assessed. The resistance of the coatings during thermal cycling tests has been determined. It has been established that thermal protective coatings made of aluminum-clad zirconium oxide powder have the best characteristics under thermal cycling conditions. A higher level of adhesion and thermal cyclic resistance of such coatings are due to an increase in the enthalpy of aluminum-clad ZrO2 powders due to exothermic reactions and the presence of a metal binder.
Radiolysis of transformer oil in presence of trichlorbenzen and nano-γ-Al2O3
Authors:   Institute of Radiation Problems of NAS Azerbaijan, Iskenderova Z. I.
Published: July 2021

In this work, a comparative study of the kinetics of changes in the pH indicator, the formation of H2O2 and CO2 depending on the absorbed dose at the radiolysis of TCB containing transformer oil in the presence and without nano-γ-Al2O3 under the action of γ radiation was carried out. During radiolysis of both systems (TСB + transformer oil and TСB + transformer oil + 0.1 g of nano-γ-Al2O3), the radiation-chemical yield of CO2 decreases with an increase in the initial concentration of TCB, although at the presence of nano-particles, the values of the radiation-chemical riels of CO2 become less. Unlike CO2, the radiation-chemical yields of H2O2 increase with an increase in the initial concentration of TCB, but their values are less in the presence of nano-γ-Al2O3. The results obtained are explained by the reactions of active particles, radiolysis of the main components of transformer oil, such as hydrogen atoms and hydrocarbon radicals with TCB and dissolved oxygen molecules. In addition, there is a transfer of electronic excitation energy from alkane and cycloalkane molecules to aromatic hydrocarbon molecules. The effect of nano-γ-Al2O3 on the radiolysis of the mixture is discussed on the basis of the reaction of electron and hole centers with the molecules of the components of the irradiated mixture.
Investigation of long-term aging of high-temperature Nb-matrix composite material reinforced by α-Al2O3 fibers
Authors:   All-Russian scientific research institute of aviation materials (VIAM), Shchetanov B. V. , Graschenkov D. V. ,   All-Russian scientific research institute of aviation materials (VIAM), Dvoretskov R. M. ,   All-Russian scientific research institute of aviation materials (VIAM), Bol’shakova A. N. ,   All-Russian scientific research institute of aviation materials (VIAM)
Published: July 2021

Solving the problems when developing high-temperature composite materials (HTCM) requires non-standard approaches, as for example, using the long-term high-heat treatment (HHT), which has a significant effect on mechanical properties of the HTCM at high temperatures. To obtain a niobium-based HTCM reinforced with α-Al2O3 single crystal fibers (“Nb – SCF α-Al2O3”) hot pressing technique was used in the research. The HHT effect at 1350 °C of the HTCM on its high-temperature (1300 °C) bending strength, hardness and density at 22 °C after 100 hours HHT with a step in 25 hours was investigated. The samples structure and elements distribution at the interfacial boundaries of HTCMs were studied. It was established that the elements interdiffusion width at the interphase boundary of the continuous composition “Nb – SCF α-Al2O3” doesn’t exceed 2 μm for the whole HHT term; in outside the interphase boundary, only niobium oxides and carbides were detected. It was found that the bending strength after 25 hours HHT slightly exceeded the strength of the initial sample (before HHT); with further high-temperature HHT, the strength increased by 1.7 – 2 times in comparison with the initial sample. The hardness (HV 0.5) after 25 hours HHT remained actually unchanged (70), and subsequently sharply increased and the average hardness in three aging stages (50, 75 and 100 hours) was 330. The density of HTCMs increased with HHT, and after 100 hours HHT increased in comparison with the original sample by 1.3 times.
Gradient structures of Ni – Zn ferrites for electromagnetic radiation protection devices
Authors:   Tomsk State University of Control Systems and Radioelectronics, Karanskij V. V. , Smirnov S. V. ,   Tomsk State University of Control Systems and Radioelectronics, Klimov A. S. ,   Tomsk State University of Control Systems and Radioelectronics, Savruk E. V. ,   Tomsk State University of Control Systems and Radioelectronics
Published: July 2021

Increasing the reliability requirements for electromagnetic compatibility of electronic equipment requires the creation of protective coatings that absorb electromagnetic radiation or the development of new radio-absorbing materials. In the frequency range up to 1 GHz, radio-absorbing materials based on Ni – Zn ferrites are of the greatest interest. The absorption of electromagnetic radiation by ferrites occurs due to resonant phenomena at the level of domains and atoms. Improving the performance of ferrites is possible by modifying their surface properties. In this paper, gradient structures for electromagnetic radiation protection products are obtained by treating the surface of Ni – Zn ferrite samples with a low-energy electron beam. To generate the electron beam, a unique development was used — a forevacuum plasma electronic source that allows forming and transporting a beam with a power density of up to 105 W/cm2 under conditions of high pressure and high gas release. As a result of processing, gradient structures were found on the surface of ferrites. A theoretical analysis and experimental study of the obtained structures “non – magnetic conductor – ferrite”, characterized by an increased attenuation coefficient and a reduced reflection coefficient of electromagnetic radiation in the frequency range from 0.5 to 2.5 GHz. The possibility of obtaining near-surface layers depleted in zinc with increased electrical conductivity and reduced magnetic permeability is shown.
Mg – Al layered double hydroxides in the dephosphotation of municipal effluents
Authors:   Institute of North Industrial Ecology Problems, Subdivision of the Federal Research Centre “Kola Science Centre of Russian Academy of Science”, Gorbacheva T. T. , Mayorov D. V. ,   Tananaev Institute of Chemistry, Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”, Fokina N. V. ,   Institute of North Industrial Ecology Problems, Subdivision of the Federal Research Centre “Kola Science Centre of Russian Academy of Science”
Published: July 2021

Experimental modeling of phosphates extraction from model solutions and sludge mixture of regional water treatment facilities is carried out. The sorbents used are Mg – Al layered double hydroxides obtained by method of solid-phase synthesis according to patented technology. The experimental data of the PO43– -ions sorption onto Mg – Al LDH most accurately describes by pseudo-first order kinetic model. The process of phosphate ions sorption onto hydroxide form Mg – Al LDH proceeds in a mixed diffusion mode, not only the outer surface of the material, but also the inner surface of the grains is involved in the sorption process. The sorption capacity of the hydroxide form is 49 mg P/g, which corresponds to the average level of phosphorus removal from wastewater achieved in world practice for synthesized analogues. The use of the oxide form obtained by materials calcination during 600 °С increases the efficiency of municipal effluents dephosphotation.
Fire retardant electrically conductive composite materials based on polyethylene
Authors:   Enikolopov Institute of Synthetic Polymeric Materials of RAS, Yevtushenko Y. M. , Goncharuk G. P. ,   Enikolopov Institute of Synthetic Polymeric Materials of RAS, Grigoriev Y. A. ,   Enikolopov Institute of Synthetic Polymeric Materials of RAS, Kuchkina I. O. ,   Enikolopov Institute of Synthetic Polymeric Materials of RAS, Shevchenko V. G. ,   Enikolopov Institute of Synthetic Polymeric Materials of RAS
Published: July 2021

The article presents the results of research on electrically conductive hard-to-burn composite materials based on polyethylene, graphite and some flame retardants. It is shown that optimal electrical conducting properties and the flammability rating (V0) in accordance with UL 94 test are achieved by modifying the graphite-containing composite material based on low-pressure polyethylene with ammonium polyphosphate and (or) aluminum hydroxide. It is shown that the percolation threshold of a composite material based on high-pressure polyethylene and graphite is observed at significantly higher values of the mass fraction of graphite. It is concluded that the reduction of the percolation threshold of polyethylene when filled with graphite is facilitated by an increase in the degree of crystallinity of the binder and the formation of structured continuous conducting clusters in the composite material is observed at lower values of the mass fraction of the filler. As a result, the thermal conductivity and heat resistance of the composite material are increased due to more efficient delocalization of the supplied heat. A number of electrically conductive hard-to-burn materials were obtained and characterized. These data allow us to directly adjust the values of the specific volume electrical resistance, physical and mechanical properties, heat resistance and, to a certain extent, resistance to flame.
Design and validation of a system of categories to assess the written discourse of L2 English learners
Authors: Corral-Robles Silvia , Sánchez-Martín Micaela , González-Gijón Gracia
Published: July 2021

This study is part of a broader research focused on written discourse analysis and its application in English language teaching. This paper aims to design and evaluate the validity of the content of an instrument (a system of categories) built to analyse the written discourse in L2 (English) of 112 Spanish students in Upper Secondary Education. This study was carried out from a qualitative approach using the technique of content analysis and the Delphi technique with five experts in the field. The results show that the category system has content validity as it meets the criteria to ensure the scientific rigour of qualitative methodology: credibility, transferability, dependence and confirmability. Moreover, there is a high score in terms of interrater reliability on the criteria contrasted with Kendall's W test (>.07), as well as on its application in the coding process which was confirmed with Cohen's Kappa test (.658). It can be concluded that this instrument is a valid tool to help ELF teachers and secondary school students in the teaching and learning process of the written discourse in English as a foreign language.
The Contribution of Education in the Family to Form Muslim Personality Qualified
Authors: Suradi Ahmad , Gustari Nopian , Nilawati Nilawati
Published: July 2021

This article describes about the contribution of education in the family to form muslim personality qualified. The family has an important role in determining the progress of a nation, so they theorize that the family is a very important unit in society. Therefore, all kinds of community depravity is the result of weak family institutions. For a child the family is the first and foremost place for growth and development. The main function of the family is as a vehicle to educate, nurture and socialize children, develop the ability of all its members in order to perform its functions in the community well, and, to provide satisfaction and a healthy environment in order to achieve prosperous family. The family is the earliest and most effective place to run the functions of the education and welfare. If the family fails to teach the truth, the spirit, the desire to be the best, and master the basic abilities. Because the failure of the family in shaping the character of the child will result in the growth of people with bad character or not character.
Penerapan Green Architecture dan Green Building Pada Al-Waha Resort Puncak Bogor
Authors: Palwaguna Dery Sulung , Wahyuningsih Hapsari
Published: July 2021

Beberapa periode terakhir perkembangan wisata sangat meningkat, sehingga kebutuhan amenitas pariwisata seperti resort pun meningkat. Sebuah tempat untuk relaksasi maupun rekreasi dengan konsep hunian sangat marak bermunculan di daerah pariwisata. Sehingga untuk memenuhi kebutuhan individu maupun lingkungan demi mendukung program pariwisata, disain arsitekur mulai mengarah kepada perancangan arsitektur berbasis green design yang diharapkan menjadi jawaban terhadap masalah lingkungan. Permasalahan lingkungan khususnya pemanasan global menjadi topik permasalahan yang mencuat akhir-akhir ini. Dalam dunia arsitektur muncul fenomena sick building syndrome yaitu permasalahan kesehatan dan ketidak nyamanan karena kualitas udara dan polusi udara dalam bangunan yang ditempati yang mempengaruhi produktivitas penghuni, adanya ventilasi udara yang buruk, dan pencahayaan alami kurang. Selain karna adanya pemanasan global, penciptaan atau inovasi energi yang terbarukan juga menjadi latar belakang timbulnya konsep green architecture. Sampai pada akhirnya timbul konsep Green Building. Gedung Hemat Energi atau dikenal dengan sebutan green building terus digalakkan pembangunannya sebagai salah satu langkah antisipasi terhadap perubahan iklim global. Indikasi arsitektur disebut sebagai 'green' jika dikaitkan dengan praktek arsitektur antara lain penggunaan renewable resources (sumber-sumber yang dapat diperbaharui, passiveactive solar photovoltaic (sel surya pembangkit listrik), teknik menggunakan tanaman untuk atap, taman tadah hujan, menggunakan kerikil yang dipadatkan untuk area perkerasan, dan sebagainya. Sehingga komsep design pada resort akan memberikan kebutuhan manusia secara individu, kesehan maupun kebutuhan ekosistem alam sekitar secara micro maupun macroKeywords: Green Architecture, Green Building, Resort
PERAN INDUSTRI HALAL DALAM UPAYA MEMBANGUN EKONOMI SYARIAH DI MASA PANDEMI COVID-19
Authors: Islami Adelia Nurul
Published: July 2021

Pandemi COVID-19 merupakan penyakit yang hampir menyebar dan melumpuhkan dunia tak terkecuali negara indonesia, pandemi ini bukan hanya membicarakan masalah kesehatan akan tetapi meliputi seluruh aspek yang melumpuhkan sektor perekonomian. Menteri keuangan, Sri Mulyani Indrawati mengatakan bahwa dampak terhadap ekonomi buruk mencapai minus 0,4 % . Adapun bentuk upaya yang diterapkan untuk mengurangi penyebaran rantai covid-19 yaitu dengan social distancing. Akan tetapi gerakan ini berdampak pada penurunan aktivitas ekonomi secara keseluruhan. Pada saat ini masyarakat Indonesia tentunya sangat menjaga kesehatan, salah satunya dengan mengonsumsi dan membeli yang higenis dan terjamin. Maka produk halal lah yang mengambil posisi atau peranan penting dalam pasar pada perekonomian new normal. Tujuan penulisan adalah ingin mengetahui bagaimana upaya industri halal dalam membangun ekonomi syariah di masa pandemic dengan menggunakan pendekatan kualitatif deskriptif.
q-Calculus and the Symmetrized Radioactive Decay Law
Authors: Eastmond Shawn
Published: July 2021

The radioactive decay law was first formulated by Ernest Rutherford and Frederick Soddy in 1902. As a well-known law, one of its primary applications is to determine the dates of ancient specimens. The process is known as radiocarbon dating and is subjected to the known properties of radioactive nuclei. In this paper, we implement quantum calculus to express the solution of the radioactive decay equation in symmetrized q-exponential form. Also, we explore a q-analog of the decay constant using Tsallis logarithmic function for various miscellaneous q-values. Furthermore, the factor-label method was applied to our analysis to show that the correct units remained intact under the application of quantum calculus. In conclusion, our work suggests that a variation of the q-parameter was akin to the production of a new isotope for all q in (0,1); the superadditive regime.
Khi đứa trẻ chơi cờ vua: Cảm xúc của trí tuệ nhân tạo
Authors: Ho Tung Manh , Long Tran Duc Hung
Published: July 2021

This article is an opinion paper about Elizabeth A. Wilson's "Affect and Artificial Intelligence".
PASAR MODAL SYARIAH DI INDONESIA
Authors: Lisna
Published: July 2021

Pertumbuhan pasar perbankan dan asuransi syariah telah mendorong kebutuhan pasar akan keperluan produk produk yang mampu mengatasi masalah lekuiditas industri keuangan syariah.kehadiran pasar modal berbasis intekrasi produk syariah di Indonesia di harapkan dapat membantu bank dan asuransi syariah mengoptimalkan penggunaan sumber dana yang tersedia sesuai dengan prinsip syariah sembari menjaga keseimbangan antara lekuiditas dan tingkat keuntungan selain itu,kehadiran produk syariah di pasar modal Indonesia juga memberi peluang berinvestasi bagi masyarakat yang menyakini bahwa produk investasi konvensional mengandung elemen-elemen yang di harapkan syariah.
Analisis Mekanisme Pasar Syariah (Pembagian Kepemilikan
Authors: Muh.Rafli
Published: July 2021

Kekayaan merupakan suatu hal yang sangat diinginkan manusia yang harus dipertanggungjawabkan kepada Allah SWT bukan dijadikan tujuan hidup. Pembagian kepemilikan terbagi menjadi 3 yaitu kepemilikan individu, publik (umum), dan negara. Hal ini dilakukan agar kesejahteraan baik individu, umum, dan negara bisa terjaga keseimbangannya.
Hukum Perbankan Syariah dan Pasar Modal Syariah yang Berperan sebagai Jantung Ekonomi
Authors: Ilman Afnan Nur
Published: July 2021

Bank syariah adalah lembaga keuangan dengan tujuan khusus, yaitu bahwa perjanjian atau kegiatan pembiayaan mereka harus mematuhi hukum Islam (Khusairi, 2015). Dalam penyaluran dana, bank syariah menggunakan beberapa akad, diantaranya: wadiah dan mudharabah. Di Indonesia, perbankan syariah telah meningkat pesat dalam beberapa tahun terakhir. Tentunya menjadi alternatif perbankan tradisional bagi masyarakat untuk melakukan aktivitas perbankan. Pasar modal tidak dapat dipisahkan dari kemajuan ekonomi suatu negara. Pasar modal digunakan untuk mengelola dana masyarakat dan untuk memperoleh kepemilikan saham perusahaan dengan menjualnya. Bentuk pasar modal syariah berfungsi sebagai media investasi bagi masyarakat muslim di pasar modal yang sejalan dengan prinsip- prinsip syariat. Ada beberapa standar yang harus diperhatikan untuk pembentukan pasar modal syariah yaitu membentuk harga secara wajar, adanya informasi yang sempurna, bebas dari riba, gharar, perjudian dan transaksi lainnya yang bertentangan terhadap aturan syariah.
PENGARUH GAYA HIDUP DAN LITERASI KEUANGAN TERHADAP PENGELOLAAN KEUANGAN MAHASISWA DI KOTA MAKASSAR
Authors: Sucihati Fuji
Published: July 2021

menganalisis dampak gaya hidup dan literasi keuangan pada manajemen keuangan. Metode yang digunakan pada penelitian ini adalah penelitian kuantitatif. Populasi penelitian ini adalah mahasiswa di Kota Makassar dengan teknik sampling aksidental menggunakan100 sampel. Teknik analisis menggunakan regresi berganda, uji-t, dan uji F. Hasil uji-t menunjukkan bahwa gaya hidup dan literasi keuangan berpengaruh secara parsial terhadap manajemen keuangan. Dan hasil uji F menunjukkan bahwa gaya hidup dan literasi keuangan secara simultan mempengaruhi manajemen keuangan.