bluuebunny/crossref_metadata_2025 huggingface dataset:
Rational drug therapy of chronic heart failure: the role of mineralocorticoid receptor antagonists: review
Authors: Safronova Natalia V. , Zhirov Igor V. , Tereshchenko Sergey N.
Published: April 2022

Mineralocorticoid receptor antagonists (MRAs) are part of basic medical therapy for heart failure. The clinical efficacy of MRAs has been proven by randomized clinical trials. To review comparative efficacy and tolerability data between the two main MRAs, spironolactone and eplerenone, in patients with systolic heart failure.
Topical issues concerning modern lipid-lowering therapy
Authors: Susekov Andrey V.
Published: April 2022

Hypercholesterolemia (high levels of atherogenic lipoproteins) is the main modifiable cardiovascular risk factor in most of the populations, including the Russian population. 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase inhibitors (statins) have been used in clinical practice for more than 40 years and have a substantial evidence-based proof of efficacy and safety. Unfortunately, the most of the patients with high cardiovascular risk, including the Russian Federation, still receive initial statin doses and only in 10% of the cases we can reach the recommended target level of low-density lipoprotein cholesterol. This article deals with the current principles of statin therapy according to the latest guidelines and shows updated information concerning the optimization of statin therapy in the elderly and in patients with chronic kidney disease. This article, as well, shows the safety of applying HMG-CoA reductase inhibitors (impact on muscles, liver and cognitive impairments). In addition, the review presents the algorithms for the combination therapy of statins and ezetimibe.
Tricalbin proteins regulate plasma membrane phospholipid homeostasis
Authors: Thomas Ffion B , Omnus Deike J , Bader Jakob M , Chung Gary HC , Kono Nozomu , Stefan Christopher J
Published: April 2022

The evolutionarily conserved extended synaptotagmin (E-Syt) proteins are calcium-activated lipid transfer proteins that function at contacts between the ER and plasma membrane (ER-PM contacts). However, roles of the E-Syt family members in PM lipid organisation remain incomplete. Among the E-Syt family, the yeast tricalbin (Tcb) proteins are essential for PM integrity upon heat stress, but it is not known how they contribute to PM maintenance. Using quantitative lipidomics and microscopy, we find that the Tcb proteins regulate phosphatidylserine homeostasis at the PM. Moreover, upon heat-induced membrane stress, Tcb3 co-localises with the PM protein Sfk1 that is implicated in PM phospholipid asymmetry and integrity. The Tcb proteins also control the PM targeting of the known phosphatidylserine effector Pkc1 upon heat-induced stress. Phosphatidylserine has evolutionarily conserved roles in PM organisation, integrity, and repair. We propose that phospholipid regulation is an ancient essential function of E-Syt family members required for PM integrity.
The Comparison of WLS and DWLS Estimation Methods in SEM to Construct Health Behavior Model
Authors: Yanuar Ferra , Uttaqi Fadilla Nisa , Zetra Aidinil , Rahmi Izzati , Devianto Dodi
Published: April 2022

It is unknown how reliable various point estimates, standard errors, and standard several test statistics are for standardized SEM parameters when categorical data used or misspecified models are present. This paper discusses the comparison between WLS and DWLS for examining hypothesized relations among ordinal variables. In SEM, the polychoric correlation is employed either in WLS or DWLS. This study constructs the Health behavior model as an endogenous latent variable in which exogenous latent variables are Perceived susceptibility and Health motivation. All indicators are in categorical types. Thus, data are not multivariate normal, or the model could be misspecified. This study compares the values of standard deviation and coefficient determination to determine a better model. The criteria for the goodness of fit for the overall model are based on RMSEA, CFI, and TLI values. This present study found that the WLS estimator method resulted in better values than DWLS’s.
The Enhancement Solubility and Stability of Erythromycin Formatted in Solid Lipid Nanoparticles by Utilizing PVA as Stabilizer
Authors: Mardiyanto Mardiyanto , Untari Budi , Annuria Najma Fithri , Mara Ady , Aprianto Andre Agung , Ningsih Gustina Emilia
Published: April 2022

Infectious diseases have changed the world order today where the infection is the main cause of illness and death in the world. Erythromycin is a macrolide antibiotic that can generally inhibit the growth of Staphylococcus aureus and resistant strains. The free molecule of erythromycin in the part of the body does not reach Staphylococcus aureus because it is degraded by the first-pass effect. Nanoparticles can minimize damage to active substances due to first-pass effects because the particles have been protected by biopolymers leading to the minimizing damage of active substances. Formulation of nanoparticles loading erythromycin was used with the following variations in the amount of erythromycin 25 to 100 mg. Erythromycin was formulated by the coated polymer to changes the physics of the erythromycin into a particle. Preparation of erythromycin into nanoparticles was utilized stearic acid polymer, PEG-400, and polyvinyl alcohol using hot homogenization and ultrasonication method. Results showed that the optimum formula was the second formula (F2) with a percentage of encapsulation efficiency of 80.89773±0.11364. The results of the characterization of submicron particle formation such as morphology, diameter (particle size) and distribution (PDI) of F2 were spherical 518.6 nm; 0.096 PDI; and a zeta potential value of -12 mV respectively. The particles loading erythromycin were successfully increasing the stability of erythromycin for up to 5 cycles in terms of the heating-cooling-cycles test and also the solubility in SIF.
Preparation and Application of Nickel Electroplating on Copper (Ni/EC) Electrode for Glucose Detection
Authors: Hakim Muh. Supwatul , Pangestu Haryoko , Riyanto Riyanto
Published: April 2022

An electrode of the nickel electroplating on copper (Ni/EC) has been prepared for a simple and low cost glucose sensor in human urine detection. The electrode was prepared by using pure copper (99.9%) with electroplating method in NiSO4 solution. The electrochemical oxidation of Ni/EC electrode was investigated bys using cyclic voltammetry method. Material Ni/EC identification of morphology used Scanning Electron Magnetic (SEM) and Energy Dispersive X-Ray (EDX). The electrochemical reaction of glucose was analyzed by the cyclic voltammetry method in some electrolyte solutions. Calibration curved was constructed and a linear response for glucose concentration at range 0-0.004 M with R2 = 0.992, LOD and LOQ was determined 4.85x10−4 M, 1.6x10−3 respectively. The proposed electrode might open up a new possibility for the determination of glucose concentration in human urine. Its advantages are simple to prepare, low cost analyzing, and excellent results.
Facility Location Problem of Dynamic Optimal Location of Hospital Emergency Department in Palembang
Authors: Sitepu Robinson , Puspita Fitri Maya , Lestari Ide , Indrawati Indrawati , Yuliza Evi , Octarina Sisca
Published: April 2022

The Emergency Department (ED) is one part of a hospital that provides initial treatment for patients who suffer from illness and injury, which can threaten their survival. The importance of integrated care in the ED is one of the keys to successfully treating patients at an advanced level. This becomes complex because the ED works in a team consisting of various multi-disciplinary sciences and limited human resources, facilities, and infrastructure. In the City of Palembang, 23 hospitals have emergency room facilities from 18 Sub-Districts, by using the TOPSIS (Technique for Others Reference by Similarity to Ideal Solution) method to vary the distance (radius) the optimal location of the emergency department is obtained according to the number of hospitals that have emergency room facilities, namely Ilir Timur I District, Ilir Barat I District, Sukarami District, and Plaju District. Based on the formulation of the p-median model and the completion of the TOPSIS method, the order of Districts that have optimal locations from 18 Sub-Districts that have emergency department facilities in the City of Palembang is obtained.
Note on the signed occurrences of propositional variables
Authors: Randriamahazaka Thomas
Published: April 2022

This note concerns the positive and negative occurrences of propositional variables. Just like the theory of infectious truth-values provides an algebraic understanding of the position according to which identity of subject-matter between two formulas can approximated syntactically by the identity of propositional variables occurring in these formulas, we develop an algebraic understanding of the similar position which considers signed occurrence (i.e., positive or negative) instead of mere occurrence. We apply our framework to classical logic, yielding this first (to our knowledge) semantic characterisation of the logic called SCL by Hornischer (2020). Moreover, we settle two conjectures by Humberstone (2014) which use signed occurrences to study the equational logic of the power algebra of the two-valued Boolean algebra.
A Note on R-Mingle and the Danger of Safety
Authors: Tedder Andrew
Published: April 2022

Dunn has recently argued that the logic R-Mingle (or RM) is a good, and good enough, choice for many purposes in relevant and paraconsistent logic. This includes an argument that the validity of Safety principle, according to which one may infer an arbitrary instance of the law of excluded middle from an arbitrary contradiction, in RM is not a problem because it doesn’t allow one to infer anything new from a contradiction. In this paper, I argue that while Dunn’s claim holds for the logic, there is a good reason to think that it’s not the case for (prime) theories closed under the logic, and that this should give relevantists, and some paraconsistentists, pause when considering whether RM is adequate for their purposes.
ANALYSIS OF SOCIAL COMPETENCE OF CHILDREN AND ADOLESCENTS WITH MENTAL DISORDERS
Authors: O.P. Shmakova
Published: April 2022

Abstract. Relevance: the need to analyze the social incompetence of patients is closely related to the issues of habilitation and rehabilitation. Social incompetence, as a rule, is associated with underdevelopment or loss of skills necessary for life. Early detection of insufficiency of skills allows timely start to develop and implement individual socio-rehabilitation programs. Aim: to analyze the features of social functioning and to identify the underdevelopment of basic life skills in adolescents and adolescents who have suffered from various mental illnesses since childhood. Materials and methods. 1750 patients with various mental disorders were examined using the methodology developed in the Department for the Study of Problems of Adolescent Psychiatry FSBSI «The Mental Health Research Centre» - «Registration card of social skills and abilities of adolescents suffering from chronic mental disorders». The material of the study was patients of childhood and adolescence who applied on an outpatient basis to neuropsychiatric dispensaries in Moscow. Results: the methodology allowed us to comparatively assess the structure of skills deficit. Among the most maladjusted were patients with severe mental retardation. Patients with schizophrenia showed a significant variation in the level of social adaptation, individual preferences in the implementation of skills, they noted a dissociation between the presence and implementation of skills, a dissociation between educational skills and self-service and everyday skills. The severity of social failure depended on the severity of mental pathology, on its nosology, the well-being and adequacy of the social environment, and the type of upbringing in the family. Conclusions: the technique proved to be useful in structuring work with adolescents. It can be used both in diagnosing life skills deficiencies and in planning social rehabilitation events.
MODERN APPROACHES TO TEACHING SCHOOLCHILDREN IN A PANDEMIC
Authors: E.А. Gavrilova
Published: April 2022

Annotation: The review analyzes the results of studies that justify the introduction of blended learning in the school system. For more than a decade, modern universities have been gradually introducing additional technologies into their educational programs, including the use of distance learning. Schools until 2019 provided traditional face-to-face education, but the ongoing COVID-19 pandemic has made adjustments, which has spurred the active adoption of distance learning. Despite the uncertainty about how long this pandemic will persist and the possibility of a new pandemic in the future, it is necessary to rethink current approaches in educational practice, as well as re-evaluate distance learning as an alternative to the traditional approach in education.
Performance and stability of femtosecond laser-irradiated Fe2O3 materials as photocatalysts for methylene blue dye discoloration
Authors: Souza Josiane Carneiro , Martins Tiago Almeida , De Oliveira Regiane Cristina , Sambrano Julio Ricardo , Mendon�a Cleber Renato , De Boni Leonardo , Leite Edson Roberto , Longo Elson
Published: April 2022

The disposal of substances pollutant, such as methylene blue dye (MB), into wastewater, arouses the interest of technologies to remove these pollutants. The discoloration of MB by photocatalysis and using femtosecond laser-irradiated Fe2O3 materials as photocatalysts proved to be a promising way to treat this pollutant. Here, Fe2O3 obtained by the conventional hydrothermal process and heat-treatment, subsequently femtosecond laser-irradiated treatment. Materials obtained with a mixture of irradiated ?-Fe2O3 and ?-Fe2O3 phases revealed lower crystallinity than irradiated ?-Fe2O3 samples. The irradiation treatment and the increase in crystallinity were crucial to improve the performance of ?-Fe2O3 irradiated sample in the discoloration of MB, which reached 90% in 75�min of dye solution exposure under UV irradiation. The irradiation treatment proved to allow greater exposure of the particle surfaces, which coalesced and presented a greater distribution of medium size, indicating a more heterogeneous morphology in the irradiated samples. As a result, there was an increase in active sites due to the density of defects generated, which facilitated the dye degradation process.
Influence of Zr-metal-organic framework coupling on the morphology and photoelectrochemical properties of SnO2
Authors: Da Trindade Let�cia Guerreiro , Zanchet Let�cia , Da Silva Bianca Lins Zambon , Longo Elson , Mazzo Tatiana Martelli
Published: April 2022

In this work, we investigated the effect of the coupling of the Zr-metal-organic framework (MOF) and SnO2 and its potential for application as photoelectrode in solar cells. Coupling was performed by mechanical mixture followed by heat treatment. The effect of adding two amounts of Zr-MOF (25 and 50 wt%) on morphology and photoelectrochemical properties was investigated. The results of the J-V curves show that the coupling of 25 wt% Zr-MOF with SnO2 improved the charge transfer characteristics under light irradiated in 1.6 times compared to the pure SnO2.
Influence of Cu-doped TiO2 on its structural and photocatalytic properties
Authors: Teodoro Vin��cius , Longo Elson , Zaghete Maria Aparecida , Perazolli Leinig Antonio
Published: April 2022

Due to the potential of heterogeneous photocatalysis for wastewater treatment, the researches concerning the improvement materials modifications for its photocatalytic activity have been widely increased. One of the most employed methods is the metal doping into semiconductors. Herewith, we demonstrated the influence of Cu doping into TiO2 in its photocatalytic properties. The powder samples with 0.0 to 0.7% mol were obtained by the Pechini method and characterized by XRD, micro-Raman spectroscopy, FE-SEM, and photoluminescence spectroscopy. The Cu insertion into TiO2 structure induced the stabilization of anatase phase, increasing its content in the samples in relation to the bare TiO2. The PL results indicated that a decrease in the PL emission intensity and a shift of the emission band to the blue region. The photocatalytic activity for rhodamine B degradation under UV light irradiation indicated that the Cu-doping into TiO2 led to an enhancement of the photocatalytic activity compared to the bare one.
Comparative study of benznidazole encapsulation in boron nitride and carbon nanotubes: A quantum chemistry study
Authors: Santos Jeziel Rodrigues dos , Oliveira Osmair Vital de , Viegas Rafael Giordano , Santos Jos� Divino dos , Longo Elson
Published: April 2022

Quantum chemistry methods were used to study boron nitride and carbon nanotubes as possible carriers of antichagasic benznidazole to improve their water solubility and bioavailability. Structurally, no significant changes were observed in both nanotubes throughout the encapsulation process. For the BNZ@BNNT complex, it was possible to notice short interactions, at 0.215 nm, between the hydrogen atoms of the BNZ and the nitrogen atoms of the BNNT. The binding energy reveals that both nanotubes are capable of encapsulating BNZ in an aqueous medium, with values of �71.79 and �62.68 kcal/mol for the BNZ@BNNT and BNZ@CNT complexes. The enthalpy of solvation indicates that the complexes are soluble in water with values of �32.35 and �28.76 kcal mol�1 for the BNZ@BNNT and BNZ@CNT complexes. Regarding chemical stability, Eg and ? show that BNZ@BNNT has greater stability (Eg/? of 3.35/1.68 eV) than BNZ@CNT (0.16/0.08 eV). Overall, our results demonstrate that BNNT is a better candidate to be used as a carrier of BNZ than CNT due to its greater structural and chemical stability.
Surfactant effects in the morphology and the photocatalytic activity of the BaMoO4 crystals
Authors: Bellucci Gustavo Venancio , Gouveia Amanda Fernandes , Ribeiro Lara Kelly , Assis Marcelo , Rosa Ieda L�cia Viana , Longo Elson , Andr�s Juan , San-Miguel Miguel Angel
Published: April 2022

This paper discloses the effect of the surfactant sodium dodecyl sulfate (SDS) in the morphology and the photocatalytic activity of BaMoO4 crystals. Experimental techniques were applied to study the order-disorder degree of the samples. First-principles calculations were performed at density functional theory level with the B3LYP hybrid functional. The morphologies were investigated by field emission scanning electron microscopy, and the theoretical crystal shapes were obtained through the Wulff construction. The photocatalytic activity efficiency of the BaMoO4 crystals was tested against the Rhodamine B (RhB) dye. In this paper, BaMoO4 synthesized with SDS by the coprecipitation method presented a monophasic crystal with a disordered structure. In addition, the presence of this surfactant generated pores on the surfaces of the material, and those pores were responsible for the appearance of the adsorptive ability enhancing the adsorption process of the RhB dye in the dark, in absence of ultraviolet light.
Luminescence and structural properties of Ca1-xZrO3:Eux: An experimental and theoretical approach
Authors: Assis Marcelo , Oliveira Marisa Carvalho de , Gouveia Amanda Fernandes , Ribeiro Lara Kelly , Rosa Ieda Lucia Viana , Ribeiro Renan Augusto Pontes , Andr�s Juan , Longo Elson
Published: April 2022

The influence of Eu3+ cations in the host matrix of CaZrO3 was investigated by analyzing its luminescence and structural properties. The Ca1-xZrO3:Eux crystals (x = 0.01, 0.02, 0.04, and 0.08 mol%) were obtained by a simple sol-gel method followed by a soft thermal treatment without any surfactant. The structural characterization was performed at short-, medium- and long-distance to verify the effect of the dopant in the host matrix. To endorse the experimental results, first-principles calculations were performed by using the CRYSTAL program associated with the density functional theory. The luminescence profile of the sample was investigated by analyzing the excitation and emission spectrum monitoring the emission at 614 nm and excited at 394 nm, noting that the sample Eu-doped with 0.08 mol% has greater emission intensity. The color variations of the characteristic emissions of Ca1-xZrO3:Eux crystals were evaluated according to the Commission Internationale de L'�clairage, observing a red shift for all Eu-doped samples. A general luminescence scheme was proposed combining the density of state and the band structure calculations.
Hybrid Controller based on Null Space and Consensus Algorithms for Mobile Robot Formation
Authors: Andaluz Gabriela M. , Leica Paulo , Herrera Marco , Morales Luis , Camacho Oscar
Published: April 2022

This work presents a novel hybrid control approach based on null space and consensus algorithms to solve the scalability problems of mobile robot formation and improve leader control through multiple control objectives. In previous works, the training of robots based on the null space requires a rigid training structure based on a geometric shape, which increases the number of agents in the formation. The scheme of the control algorithm, which does not make formation scalability possible, must be changed; therefore, seeking the scalability of training based on null space is a challenge that could be solved with the inclusion of consensus algorithms, which allow the control structure to be maintained despite increasing or decreasing the number of robot followers. Another advantage of this proposal is that the formation of the followers does not depend on any geometric figure compared to previous works based on the null space; this new proposal does not present singularities as if the structure is based on geometric shape, the latter one is crucial since the formation of agents can take forms that cannot be achieved with a geometric structure, such as collinear locations, that can occur in many environments. The proposed hybrid control approach presents three tasks: i) leader position task, ii) leader shape task, and iii) follower formation task. The proposed algorithm is validated through simulations, performing tests that use the kinematic model of non-holonomic mobile robots. In addition, linear algebra and Lyapunov theory are used to analyze the stability of the method. Doi: 10.28991/ESJ-2022-06-03-01 Full Text: PDF
Managerial Recommendations Improving the Competitive Capability of Firms Based on Total Quality Management during Covid-19 Pandemic
Authors: Son Ha Van , Trai Nguyen Van , Tam Phan Thanh
Published: April 2022

In 2021, the COVID-19 epidemic affected many aspects of the provinces' socio-economic fields, especially deeply affecting businesses at enterprises. The task of ensuring social security continues with the management agencies, who need appropriate solutions and support policies to encourage and help enterprises return to production and trade after the quarantine society quickly. The basis for management theory has contributed to improving the competitive capability based on improving Total Quality Management (TQM), such as the "just in time" system. TQM aims to enhance the quality of products and satisfy customers to the best extent possible. The distinguishing feature of TQM from previous quality management methods is that it provides a comprehensive system for managing and improving all aspects related to quality and involves the participation of the public, every department, and every individual to achieve the set quality goals. The article's novelty identifies factors influencing total quality management and competitive capability of firms in Vietnam with one percent significance. Methods: The authors surveyed 650 managers at many enterprises in Vietnam. And the authors used a convenient sampling method. SPSS tools processed 589 samples to measure Cronbach's alpha, exploratory factor analysis (EFA), confirmation factor analysis (CFA), and test structural equation modeling (SEM). The authors proposed several recommendations to enhance the total quality management and competitive capability of firms. Doi: 10.28991/ESJ-2022-06-03-010 Full Text: PDF
The Role of Economic Policy Uncertainty in Predicting Stock Return Volatility in the Banking Industry: A Big Data Analysis
Authors: Antonopoulou Hera , Mamalougou Vicky , Theodorakopoulos Leonidas
Published: April 2022

The research aims to study the effects of economic policy uncertainty on the return volatility of stocks with data from the largest banking institutions in Greece. Volatility is constructed using intraday data, whereas the research period extends over a period of about thirteen years, more specifically from January 5, 2001, to June 30, 2014. This period includes various phases of the market, such as stock market crashes along with stock market booms (e.g. the financial crisis of 2007 and 2008 in the United States and the European sovereign debt crisis). The estimated regressions were used to indicate the direct effects of economic policy uncertainty on the return volatility of the stocks of the four large Greek banks. The volatility index is constructed based on intraday data, whereas four different estimators of volatility were used. There is a statistically significant "direct" effect of economic policy uncertainty on the volatility of stock returns of the largest Greek banks, which are (a) Alpha Bank, (b) Eurobank, (c) National Bank of Greece, and (d) Piraeus Bank. Such findings are highly important for specific groups of people, such as investors, policymakers, and regulators. This study is the first research that seeks to identify the effect of economic policy uncertainty on the stock return volatility of the Greek banking system, constructed from intraday data. Doi: 10.28991/ESJ-2022-06-03-011 Full Text: PDF
Effectiveness of Students' Motivation Factors in the Competency-Based Approach: A Case Study of Universities in Russia and Indonesia
Authors: . Nuphanudin , Komariah Aan , Shvetsova Tatiana , Gardanova Zhanna , Podzorova Marina , Kurniady Dedy Achmad , Gladysheva Marina , Dudnik Olesya , Taduran Richard Jonathan O. , Kosov Mikhail
Published: April 2022

The study aimed to explore the influence of motivation factors on the development of professional competencies using Russian and Indonesian institutions of higher education as case studies. In pursuit of this objective, quantitative survey methodology was incorporated, and surveys were conducted during November and April of the 2018/2019 to 2021/2022 school years. The questionnaire was developed with a 10-point rating scale, aimed at addressing the development of students' professional competencies and the factors that motivate learning and competency development. Using the questionnaire, the level of professional competency development of students in Russian and Indonesian universities has been empirically analysed. The results of the study supported the spiral nature of students' professional competencies development, showing that the development of professional competencies follows a progressive and non-linear nature of component development. These results confirm that the process of professional competency development is structurally divided into separate, relatively independent stages reflecting sequential and gradual progression. The positive character of the influence of the balanced development level of intrinsic and extrinsic motivation factors on the formation of students' professional competencies has been established. The results of the research may prove useful for educational institutions and public administration bodies for the development of effective mechanisms for students' motivation within the framework of competency-based approach implementation in higher education. Doi: 10.28991/ESJ-2022-06-03-012 Full Text: PDF
An Empirical Study of Principals' Leadership Styles with Faculty Commitment
Authors: Nguyen Thanh Hai , Van Quang Nguyen , Tuyet Mai Nguyen Thị
Published: April 2022

Objectives: The objectives of this study were to explore the leadership styles of political school principals and the influence of leadership styles on faculty committees, as well as the influence of leadership styles on faculty-directed demographic variables. Methods/Analysis: This study uses a quantitative method to identify the leadership styles that exist in principals of political schools. The collected data is analyzed and processed in the Statistical Package for Social Sciences (SPSS) version 26.0. The available test of Avolio and Bass to explore leadership styles, the test developed by Meyer and Allen is used to measure faculty commitment. Findings: Transformative leadership styles, transactional leadership styles, and laissez-faire leadership styles all have statistically significant positive correlations with faculty commitment. Novelty/Improvement: The laissez-faire leadership style had the strongest influence on faculty commitment, followed by the transformational leadership style. The least influential leadership style was the transactional leadership style. When lecturers have confidence and initiative, being able to make their own decisions and implement them, they will be more creative to achieve leadership performance. The research results are only shown within the provincial political schools of Vietnam. Future studies may select a broader sample of subjects in many educational institutions of a different kind. Doi: 10.28991/ESJ-2022-06-03-013 Full Text: PDF
Understanding Consumers' Purchase Intention and Gift-Giving in Live Streaming Commerce: Findings from SEM and fsQCA
Authors: Chen Wen-Kuo , Chen Chien-Wen , Silalahi Andri Dayarana K.
Published: April 2022

Live streaming commerce has experienced tremendous growth over the past few years. Although research has increasingly investigated the phenomenon of live streaming as e-commerce, it is arguably essential to determine why consumers make purchases through live streaming and send paid gifts to streamers. This study aims to understand users' social commerce purchase intentions and gift-giving according to the uses and gratification perspective, and engagement, and extends the literature by identifying five uses and gratifications for social media live streaming and how the viewers' engagement affects purchase intentions and gift-giving. We tested the hypothesis among 525 Indonesians who watch live streaming through Structural Equation Modeling (SEM) and fuzzy set Qualitative Comparative Analysis (fsQCA). The results of SEM confirm the importance of pass-times and habits to consumer engagement in live streaming. In this sequence, the role of engagement (emotional, social presence, and immersion) was confirmed to significantly influence purchase intention and gift-giving intention. The results of fsQCA provide theoretical insight and practical suggestions for increasing our understanding of the complex interconnectivity among uses, gratification factors, engagement in social commerce purchase intentions, and gift-giving intentions. Finally, this study also highlighted the configurational conditions for understanding consumer behaviors in live streaming commerce. Doi: 10.28991/ESJ-2022-06-03-03 Full Text: PDF
Gerontoloji ve edebiyat: Genel bir bakış
Authors: ÖĞÜTCÜ Murat
Published: April 2022

Gerontoloji, yani yaşlılık bilimi gerek ülkemizde gerekse yurtdışında öncelikli olarak tıbbın bir alt alanı olarak irdelenmiş; bireyin ve toplumun zihinsel, bedensel, sosyal ve kültürel olarak yaşlanması konusu son yıllarda sosyoloji, coğrafya, spor bilimleri ve çevre bilimleri gibi bazı sosyal bilimlerde ve fen bilimlerinde alt çalışma alanları olarak gündeme gelmiştir. Gerontoloji ile insanın zihninin ve bedeninin yaşlanması, bunun birey ve toplum üzerindeki etkilerinin incelenmesi tıp, sağlık bilimleri ve sosyoloji alanında yeni bakış açıları ve çözüm önerileri sunulmuşsa da yaşlılığın kuramsal çerçeveleri içerisinde şiir, tiyatro ve düzyazı eserleri incelenmemiştir. Bu eksikliği gidermeyi ve edebiyat çalışmalarına yeni bir soluk getirmeyi amaçlayan bu çalışmada Alman sosyal gerontologların ve İngiltere ile Amerika Birleşik Devletleri’nde bu alanda yayınlanan çalışmaların üzerinde durularak bunların edebi metinleri inceleme konusunda hangi metotlar çerçevesinde kullanılabileceği irdelenip Tarancı’nın “Yaş Otuz Beş,” Shakespeare’in Kral Lear ve Hesse’nin Siddhartha eserleriyle örneklendirilecektir. Bu örneklendirmelerin çerçevesi ise genel ve ilgili türlerin özel metot önerileri ile çizilecektir. Genel metotlarda incelenecek eserdeki yaş grupları ve bu grupların birbiriyle ilişkileri, eserlerin yazıldığı ve sonrasında alımlandığı dönemlere göre yapılması gerekliliği vurgulanacaktır. Eserin türü özelinde metot önerilerde ise şiirde kalıp ve kafiye unsurlarıyla biçim ve kullanılan dil, konu, bakış açısı gibi unsurları barındıran içerik konularında eski ve yeninin ele alınışının incelenmesinin gerekliliği vurgulanacaktır. Tiyatroda ise tiyatro eserinin hem metne hem de gösteriye dayalı unsurları göz önünde bulundurulması gerekliliğinin altı çizilecektir. Gerontolojik bir düzyazı okumasında ise karakter, bakış açısı, yer ve zaman, olay örgüsü ve çatışma ekseninde nelere dikkat edilmesi gerekebileceği vurgulanacaktır.
Hayat Mecmuası’nda edebiyat öğretimi üzerine yapılan tartışmaların değerlendirilmesi
Authors: IŞIK Yasemin
Published: April 2022

2 Aralık 1926- 5 Mayıs 1930 tarihleri arasında 146 sayılık bir koleksiyon meydana getirerek, yeni devletin sesi olarak yayımlanan Hayat Mecmuası’nın yazarları, Türk İnkılâbı ile gelen değerlerin sanat yardımıyla halka benimsetilebileceği, haz ve neşenin, estetik değerlerin, Atatürk ilke ve inkılâplarının “edebiyat öğretimi” ile gençlere kazandırılabileceğini savunan, eğitimcileri ve edebiyatçıları okullardaki edebiyat öğretiminin yenileştirilmesinde sorumlu tutan, ‘ortaöğretim kurumlarındaki edebiyat öğretiminin önemi ve niteliği’ni işleyen birçok makale yayımlamışlardır. Ali Canip (Yöntem), Köprülüzade Mehmet Fuat, Mehmet Emin (Erişirgil), Hasan Âli (Yücel), Mehmet Saffet, M. Nermi, Mehmet Ali Tevfik Beyler, Öğretmen Hıfzı Tevfik Bey gibi derginin önemli isimleri, Batının edebiyat öğretimindeki yaklaşım ve uygulamalarını (Amerikalı uzmanlardan, Salomon Renak, Fransız Edebiyat Tarihi Profesörü Gustav Lanson, Alfred Kruze, Paul Kruze gibi isimlerden) örnek göstererek bizdeki edebiyat anlayışını ve öğretimini, yayınları karşılaştırmalı olarak sorgulamışlar; Cumhuriyet öncesi dönem edebiyat anlayışı ve dili (özellikle Divan Edebiyatı) ile Cumhuriyet sonrası bunların nasıl değişmesi gerektiğine dair karşılaştırmalar yaparak hazırlanacak yeni programlar, kitaplar, broşürler üzerine birbirleriyle tartışmışlardır. Yeni program çerçevesinde Batı edebiyatlarına yer verilmesinin ‘kozmopolitlik’e sebep olup olmayacağı tartışmaları da dönemin Batılılaşma algısını anlamamız açısından önem arz etmektedir. Bu çalışmada edebiyat anlayışı ve öğretimine ilişkin tüm bu tartışmalar analiz edilecektir.
Fighting here or in Heaven? Sherman Alexie’s The Lone Ranger and Tonto Fistfight in Heaven
Authors: BARRETO MARTİNS Gizem
Published: April 2022

Confined within the borders of reservations Native identity suffers not only from the traumatic experiences of poverty, unemployment, broken families, alcoholism and oppression but also from systematic racist practices and stereotyping, which reduce the American Indian identity to noble savages, bloodthirsty warriors, prophetic shamans, or drunken outcasts. In resistance to Anglo-American attempts to erase Native identity many American Indian writers such as N. Scott Momaday, Leslie Marmon Silko, Louise Erdrich, James Welch, and Gerald Vizenor tried to preserve Native American tribal culture and history, and remedy the traumatized Native identity. This paper focuses on how Sherman Alexie in The Lone Ranger and Tonto Fistfight in Heaven, standing apart from other Native American writers, portrays the Spokane Indian reservation life with a critical and cynical viewpoint on contemporary Native American’s problems such as poverty, unemployment, hunger, drug addiction, alcoholism, and violence. The paper also discusses the insight Alexie brings to the Native identity problem through his critical reading of both the Native history/tradition and the white culture, and his critique of both the ‘positive’ and the negative stereotyping of the American Indian. The study is based on the premise that Sherman Alexie creates, borrowing from Homi Bhabha’s terms, an ‘interstitial space’ in his answer to the question: how will the Native identity be constructed, based on the American Indian tribal culture, or the dominant Anglo culture, or is there an alternative way?
Efecto de tres tipos de riego en la erosión del suelo en cultivo de caña de azúcar (Sacharum spp) cantón Milagro provincia del Guayas
Authors: Naranjo Murillo Irene Eloiza , Fajardo Espinoza Paola Gabriela , Cantos Sánchez Edwin Alberto , Navarrete Cornejo Alexandra Aracely
Published: April 2022

La demanda de agua en Ecuador, así como en el resto del mundo se concentra en el sector agrícola. La zona de caña de azúcar (Sacharum sp) en Carrizal se riega por aspersión, surco e inundación acompañada de quema de la planta en la etapa de corte provocando perdida de la capa orgánica, para ello se realizó el diagnóstico en las áreas de posible erosión del suelo causada por el riego, así como determinar en el laboratorio las propiedades físicas como humedad, densidad aparente, macroporosidad, infiltración y químicas; materia orgánica y pH del suelo, además de establecer con la aplicación de fórmula la erosibilidad del suelo. La investigación fue exploratorio, descriptiva y diagnóstica, los métodos de análisis y síntesis, deductivo e inductivo, las variables determinación de los parámetros físicos del suelo mediante, la Sustentabilidad de la finca zona riego por inundación, aspersión y surco el rango fue de bajo a medio. En cuanto a las propiedades físicas riego por aspersión: la textura del suelo contiene 76% de arena, 16% de limo y 8% de arcilla, riego por surco: la textura de este suelo contiene 48% de arena, 20% de limo y 32% de arcilla, riego por inundación: la textura de este suelo contiene 44% de arena, 18% de limo y 38% de arcilla en la porosidad el suelo franco arenoso retiene 35 cc, el suelo franco arcilloso retiene 150 cc y el suelo franco arcillo arenoso retiene 65cc, aplicando la fórmula de erosibilidad los suelos no están erosionados.
Conocimientos y actitudes sobre la realización del Papanicolaou en la edad fértil
Authors: Santander-Vera Érika Patricia , Mesa-Cano Isabel Cristina , Ramírez-Coronel Andrés Alexis , Peralta-Cárdenas María Fernanda
Published: April 2022

El tamizaje del Papanicolaou ha sido desde décadas atrás la citología de primera elección en cuanto a la detección de cáncer de cuello uterino. Es importante que la mujer tenga conocimientos y actitudes adecuadas que le permita ser responsable con su salud y ayude a la prevención de esta patología que cada año cobra la vida de muchas mujeres a nivel mundial. Objetivo: Determinar los conocimientos y las actitudes que poseen las mujeres en edad fértil sobre la realización del Papanicolaou en la parroquia Guarainag. Metodología: estudio no experimental, descriptivo, prospectivo, de corte transversal y enfoque cuantitativo, la muestra fue constituida por 67 mujeres en edad fértil mayores de 18 años, el instrumento fue una encuesta previamente validada que media conocimientos y actitudes sobre el Papanicolaou, se tomó en cuenta variables sociodemográficas, el análisis descriptivo se realizó mediante frecuencia y porcentajes y medidas de tendencia central. Resultados: la edad fue de 19 a 45 años, predomino la instrucción primaria y secundaria con un mismo porcentaje 40,30%, casadas fueron el 44,78%, en relación al conocimiento; el 85,1% sabe en qué consiste este examen, el 51% respondió correctamente que sirve para detectar cáncer de cuello uterino, el 83,6% afirmaron que este examen debe ser real i zado una vez por año; actitudes, el 33% estuvo en desacuerdo que el Papanicolaou sea doloroso, el 61,2% refirió estar totalmente de acuerdo en recomendar a otras mujeres hacerse el examen, el 74,6% dijo que es importante hacerse el test, el 28,4% aseguro estar totalmente de acuerdo que el examen debe ser realizado por profesionales mujeres, al 79,1% les gustaría recibir más información. Conclusiones: se evidenció que ensu mayoría tienen conocimientos sobre el examen del Papanicolaou, mostraron actitudes favorables que se infieren de cada respuesta
Evaluación del rendimiento de los filtros FIR diseñados con O-splines para estimar frecuencias moduladas con polinomios o con senoidales atenuadas exponencialmente
Authors: Maliza Cruz Wellington Isaac
Published: April 2022

Las señales de oscilación de potencia se analizan con la discreta Transformada de Taylor-Fourier (DTFT). Lo cual se realiza modulando las respuestas de impulso de sus diferenciadores de paso bajo, determinados por una familia de O-splines. Esta ejecución reduce su complejidad computacional ya que en la práctica solo se emplea un pequeño subconjunto de filtros. Los parámetros estimados aportan más información dinámica que los métodos tradicionales. Su precisión de estimación se evalúa mediante el nuevo error fasorial total propuesto. Para ilustrar su aplicación y su precisión progresiva, esta técnica se aplica para observar las estimaciones de sincrofasores de voltajes y para apartar los modos electromecánicos de una oscilación en un sistema de potencia real.
Características demográficas y clínicas de los pacientes con hipertensión arterial y diabetes mellitus: revisión sistemática
Authors: Padilla-Palma Mirian Mirela , Mesa-Cano Isabel Cristina , Peña-Cordero Susana Janeth , Ramírez-Coronel Andrés Alexis
Published: April 2022

La Hipertensión arterial y la diabetes mellitus son dos enfermedades crónicas y degenerativas que afectan de forma muy silenciosa a las personas que las padecen. Resultan ser enfermedades muy comunes en pacientes con edad avanzada, en quienes presentan sobrepeso y obesidad, consumo de cigarrillo, alcohol y sedentarismo. Producto de lo planteado, el objetivo general de la investigación fue determinar a través de una revisión sistemática las características demográficas y clínicas de los pacientes con hipertensión arterial y diabetes mellitus. En la metodología de investigación desarrollada, este estudio se fundamentó en una revisión sistemática, siendo la investigación documental muy elemental en este proceso de investigación. Entre los resultados encontrados a través de 14 estudios profundamente analizados y seleccionados, se encontró que la hipertensión arterial y la diabetes mellitus son dos enfermedades muy comunes en la población y sus efectos o complicaciones son muy lamentables al punto de ser consideradas factores de riesgo que pueden generar discapacidad e incluso generar la muerte de quienes las padecen. En conclusión, es muy necesario la intervención de los profesionales de salud para abordar a estas dos enfermedades desde la prevención y para lograrlo, desde la enfermería sus profesionales pueden ejercer un rol educador.
Infecciones del sitio quirúrgico: revisión sistemática
Authors: Bonete Larrea Rosa Valeria , Mesa-Cano Isabel Cristina , Ramírez-Coronel Andrés Alexis , Serrano Paredes Karina de Lourdes
Published: April 2022

Las Infecciones del Sitio Quirúrgico (ISQ) son un problema frecuente, grave y costoso al que deben enfrentarse las profesionales de la salud. La prevención es la medida más eficaz para su reducción. Es importante que el personal de salud posea conocimientos de esta problemática, con el fin de que, si llega a presentar este incidente, se pueda realizar un abordaje oportuno, evitando complicaciones y la estancia prolongada del paciente. El objetivo planteado para la investigación fue revisar en la evidencia científica sobre infecciones del sitio quirúrgico. Para obtener una información relevante con base científica, se llevó a cabo una revisión sistemática de artículos originales a través de las siguientes herramientas o buscadores como: Redalyc, Scielo, Dialnet, Science Direct, Elsevier, Lilacs, Pubmed, utilizando palabras claves relacionadas con los objetivos deseados, según los términos Mesh y DeCs: “infecciones”, “herida quirúrgica”, “infección nosocomial”, “profilaxis antibiótica”, “asepsia”, con una antigüedad máxima de 10 años y sin limitación de idiomas. Se concluye que los profesionales involucrados en el cuidado del paciente necesitan conocer y aplicar las recomendaciones actuales, especialmente aquellas relacionadas con la higiene adecuada de las manos y la profilaxis antibiótica.
Ansiedad y la somatización en adolescentes durante la pandemia del covid-19
Authors: Espinosa Gallardo Evelyn Mireya , Almeida Márquez Lucía
Published: April 2022

El presente artículo permite conocer la relación entre la ansiedad y la somatización en adolescentes durante el contexto de la pandemia de la Covid-19. El diseño fue no experimental, con un enfoque cuantitativo-descriptivo correlacional. La muestra estuvo constituida por 204 adolescentes: 61,8% mujeres y 38,2% hombres entre 12 y 17 años de edad, bajo un muestreo por bola de nieve. Los instrumentos fueron: el Inventario de Ansiedad Estado-Rasgo (STAI) y el Listado de Síntomas Breve (LSB-50).  Los resultados sociodemográficos mostraron que el 55,4% de la muestra, presentan miedo al Covid-19. En el análisis descriptivo de niveles de ansiedad existe un predominio del Nivel Moderado para la ansiedad, además en la variable de somatización se encontró que el 21,1% presenta riesgo psicosomático y psicológico, un 3,9 % requieren atención clínica y el 75,0% no presenta sintomatología. En el análisis de correlación se obtuvo un factor significativo moderado positivo entre la ansiedad estado y los síntomas psicosomáticos y psicológicos (LSB-50) de rho=,649 p<,001 R2=,421. Resultados similares para ansiedad rasgo con la variable de somatización rho=,715 p<,001 R2=,511.
Situación de funcionamiento hidráulico y socio-económico del Sistema de Riego y Drenaje “Manuel de J. Calle” con miras a la identificación de factores críticos que deberán ser mejorados
Authors: Pesantez Maridueña Katherine Michael , Navarrete Cornejo Alexandra Aracely , Silva Coello Yanire Ibeth , Flores Cadena Cristian Andrés
Published: April 2022

La falta de eficiencia del Sistema de Riego de la Junta de Riego y Drenaje “Manuel de J. Calle” también ha incidido en las condiciones socio-económicas de los usuarios. El objetivo fue determinar la situación de funcionamiento hidráulico y socio-económico del Sistema de Riego y Drenaje “Manuel de J. Calle” con miras a la identificación de factores críticos. El estudio se realizó entre diciembre y marzo en el cantón La Troncal, provincia del Cañar. Se detalló los componentes de la infraestructura hidráulica del sistema de riego y se adaptó un método de valoración para calificar la red de canales. También se calculó la eficiencia de conducción en el canal principal del sistema de riego en donde se tomó caudales en 5 tramos del mismo. Actualmente la mayor cantidad de usuarios se encuentran satisfechos y bien socio-económicamente, la infraestructura del canal principal está en buen estado en su mayoría, pero hay tramos en los que existe gran cantidad de maleza y tierra acumulada, sin embargo, la eficiencia de conducción del canal principal es de 97.45% es decir que está en buen estado.