bluuebunny/crossref_metadata_2025 huggingface dataset:
An Experimental Approach to Assessing the Roles of Magnesium, Calcium, and Carbonate Ratios in Marine Carbonates
Authors: Reymond Claire E. , Hohn Sönke
Published: March 2021

Marine biomineralization is a globally important biological and geochemical process. Understanding the mechanisms controlling the precipitation of calcium carbonate [CaCO3] within the calcifying fluid of marine organisms, such as corals, crustose coralline algae, and foraminifera, presents one of the most elusive, yet relevant areas of biomineralization research, due to the often-impenetrable ability to measure the process in situ. The precipitation of CaCO3 is assumed to be largely controlled by the saturation state [Ω] of the extracellular calcifying fluid. In this study, we mimicked the typical pH and Ω known for the calcifying fluid in corals, while varying the magnesium, calcium, and carbonate concentrations in six chemo-static growth experiments, thereby mimicking various dissolved inorganic carbon concentration mechanisms and ionic movement into the extracellular calcifying fluid. Reduced mineralization and varied CaCO3 morphologies highlight the inhibiting effect of magnesium regardless of pH and Ω and suggests the importance of strong magnesium removal or calcium concentration mechanisms. In respect to ocean acidification studies, this could allow an explanation for why specific marine calcifiers respond differently to lower saturation states.
Capsule Migration and Deformation in a Converging Micro-Capillary
Authors: Wang Yiyang , Dimitrakopoulos Panagiotis
Published: March 2021

The lateral migration of elastic capsules towards a microchannel centerline plays a major role in industrial and physiological processes. Via our computational investigation, we show that a constriction connecting two straight microchannels facilitates the lateral capsule migration considerably, which is relatively slow in straight channels. Our work reveals that the significant cross-streamline migration inside the constriction is dominated by the strong hydrodynamic forces due to the capsule size. However, in the downstream straight channel, the increased interfacial deformation at higher capillary numbers or a lower viscosity ratio and lower membrane hardness results in increased lateral cross-streamline migration. Thus, our work highlights the different migration mechanisms occurring over curved and straight streamlines.
Application of the HPLC Method in Parenteral Nutrition Assessment: Stability Studies of Ondansetron
Authors: Tomczak Szymon , Radwan Vera , Jelińska Anna , Stawny Maciej
Published: March 2021

Ondansetron (OND) is a serotonin type 3 receptor antagonist that exhibits antiemetic activity. From the clinical point of view, vomiting and nausea prevention is an important task. Anticancer treatment and recovery impact the patient’s overall state by affecting appetite, well-being, and physical activity, and consequently, nutrition quality. Depending on the patient’s indication and condition, parenteral nutrition is administered to meet full nutritional requirements. In addition, antiemetic drugs can be added to the parenteral nutrition (PN) admixture to treat chemo- or radio-therapy-induced nausea and vomiting. However, adding any medication to the PN admixture can result in the instability of the composition in the overall admixture. This study aimed to develop the HPLC method of determination of OND in Lipoflex special, one of the most popular, ready-to-use PN admixtures. The proposed HPLC method and the sample preparation procedure were suitable for analyzing OND in PN admixture stored under various conditions, such as exposure to sunlight and temperature. It was found that the decomposition of OND during the seven-day storage did not exceed 5% and did not depend on external factors. Based on the conducted research, it is recommended to add OND to Lipoflex special, and it is possible to store such an admixture for seven days.
AHR:IKAROS Interaction Promotes Platelet Biogenesis in Response to SR1
Authors: Mallo Lea , Do Sacramento Valentin , Gachet Christian , Chan Susan , Kastner Philippe , Lanza François , de la Salle Henri , Strassel Catherine
Published: March 2021

In vitro, the differentiation of megakaryocytes (MKs) is improved by aryl-hydrocarbon receptor (AHR) antagonists such as StemRegenin 1 (SR1), an effect physiologically recapitulated by the presence of stromal mesenchymal cells (MSC). This inhibition promotes the amplification of a CD34+CD41low population able to mature as MKs with a high capacity for platelet production. In this short report, we showed that the emergence of the thrombocytogenic precursors and the enhancement of platelet production triggered by SR1 involved IKAROS. The downregulation/inhibition of IKAROS (shRNA or lenalidomide) significantly reduced the emergence of SR1-induced thrombocytogenic population, suggesting a crosstalk between AHR and IKAROS. Interestingly, using a proximity ligation assay, we could demonstrate a physical interaction between AHR and IKAROS. This interaction was also observed in the megakaryocytic cells differentiated in the presence of MSCs. In conclusion, our study revealed a previously unknown AHR/ IKAROS -dependent pathway which prompted the expansion of the thrombocytogenic precursors. This AHR- IKAROS dependent checkpoint controlling MK maturation opens new perspectives to platelet production engineering.
Sustainability of Positive Psychological Status in the Workplace: The Influence of Organizational Psychological Ownership and Psychological Capital on Police Officers’ Behavior
Authors: Chen Yu-Shan , Lien Chun-Ming , Lo Wei-Yuan , Tsay Fuh-Shyong
Published: March 2021

Drawing on the theory of conservation of resources (COR), the purpose of this study is to examine the mechanisms through which employee organizational citizenship behavior and job performance are affected by positive psychological status at work. Structural equation modeling was applied to analyze the data collected from 543 police officers in Northern Taiwan. The empirical results reveal that organizational psychological ownership positively associated with psychological capital, and psychological capital positively associated with both job performance and organizational citizenship behavior. Additionally, this study demonstrates that the relationship between organizational psychological ownership and job performance and organizational citizenship behavior are both fully mediated by psychological capital. Organizational psychological ownership and psychological capital are both positive psychological strengths to assist employees facing stressful work circumstances. The importance of examining the relationship between the components of organizational psychological ownership, psychological capital, job performance, and organizational citizenship behavior is pointed out due to the importance of organizations promoting the development of psychological resources to promote sustainable positive behavior and results in the workplace.
Scope Out Multiband Gravitational-Wave Observations of GW190521-Like Binary Black Holes with Space Gravitational Wave Antenna B-DECIGO
Authors: Nakano Hiroyuki , Fujita Ryuichi , Isoyama Soichiro , Sago Norichika
Published: March 2021

The gravitational wave event, GW190521, is the most massive binary black hole merger observed by ground-based gravitational wave observatories LIGO/Virgo to date. While the observed gravitational wave signal is mainly in the merger and ringdown phases, the inspiral gravitational wave signal of the GW190521-like binary will be more visible to space-based detectors in the low-frequency band. In addition, the ringdown gravitational wave signal will be louder in the next generation (3G) of ground-based detectors in the high-frequency band, displaying the great potential of multiband gravitational wave observations. In this paper, we explore the scientific potential of multiband observations of GW190521-like binaries with a milli-Hz gravitational wave observatory: LISA; a deci-Hz observatory: B-DECIGO; and (next generation of) hecto-Hz observatories: aLIGO and ET. In the case of quasicircular evolution, the triple-band observations of LISA, B-DECIGO, and ET will provide parameter estimation errors of the masses and spin amplitudes of component black holes at the level of order of 1–10%. This would allow consistency tests of general relativity in the strong field at an unparalleled precision, particularly with the “B-DECIGO + ET” observation. In the case of eccentric evolution, the multiband signal-to-noise ratio found in “B-DECIGO + ET” observation would be larger than 100 for a five-year observation prior to coalescence, even with high final eccentricities.
Immunogenetic Predictors of Severe COVID-19
Authors: Malkova Anna , Kudlay Dmitriy , Kudryavtsev Igor , Starshinova Anna , Yablonskiy Piotr , Shoenfeld Yehuda
Published: March 2021

According to an analysis of published data, only 20% of patients with the new coronavirus infection develop severe life-threatening complications. Currently, there are no known biomarkers, the determination of which before the onset of the disease would allow assessing the likelihood of its severe course. The purpose of this literature review was to analyze possible genetic factors characterizing the immune response to the new coronavirus infection that could be associated with the expression of angiotension-converting enzyme 2 (ACE-2) and related proteins as predictors of severe Corona virus disease 2019 (COVID-19). We analyzed original articles published in Medline, PubMed and Scopus databases from December 2019 to November 2020. For searching articles, we used the following keywords: New coronavirus infection, Severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2), COVID-19, severe course, complications, thrombosis, cytokine storm, ACE-2, biomarkers. In total, 3714 publications were selected using the keywords, of which 8 were in congruence with all the criteria. The literature analysis of the association of immunogenic characteristics and the expression of ACE-2 and related proteins with the development of severe COVID-19 revealed following genetic factors: HLA-B*46:01 genotype, CXCR6 gene hypoexpression, CCR9 gene expression, TLR7, rs150892504 mutations in the ERAP2 gene, overexpression of wild-type ACE-2, TMPRSS2 and its different polymorphisms. Genes, associated with the severe course, are more common among men. According to the analysis data, it can be assumed that there are population differences. However, the diagnostic significance of the markers described must be confirmed with additional clinical studies.
Heightened Willingness toward Pneumococcal Vaccination in the Elderly Population in Shenzhen, China: A Cross-Sectional Study during the COVID-19 Pandemic
Authors: Zhang Minyi , Chen Hongbiao , Wu Fei , Li Qiushuang , Lin Qihui , Cao He , Zhou Xiaofeng , Gu Zihao , Chen Qing
Published: March 2021

Background: Elderly population is considered at high risk for pneumococcal diseases. The pneumococcal vaccine coverage presents extremely low among elderly people in China. However, the serious event of COVID-19 drives interest in the pneumococcal vaccine, prompting us investigating the willingness to accept the 23-valent pneumococcal polysaccharide vaccine (PPSV23) and influencing factors among people aged over 60 years during the COVID-19 pandemic. Methods: A cross-sectional study was employed using a self-administered questionnaire in Shenzhen City of China, elaborating the willingness toward PPSV23 in the elderly persons. Binomial logistic analyses were performed to estimate the influencing factors using odds ratios (ORs) and 95% confidence interval (CI). Results: Among 15,066 respondents, 91.5% presented a positive attitude toward PPSV23. Logistic analyses suggested the influencing factors included knowledge about pneumonia (adjusted OR [aOR] 1.391, 95%CI 1.214–1.593), perception of the seriousness of pneumonia (aOR 1.437, 95%CI 1.230–1.680) and preventing way for pneumonia (aOR 1.639, 95%CI 1.440–1.865), worried about getting pneumonia (aOR 2.751, 95%CI 2.444–3.096), understanding vaccine policy (aOR 1.774, 95%CI 1.514–2.079), and influenza vaccine (aOR 3.516 and 95%CI 2.261–5.468) and PPSV23 histories (aOR 3.199, 95%CI 1.492–6.860). Conclusions: The interest surge in pneumococcal vaccine coincided with the COVID-19 outbreak, foreshadowing higher demand for pneumococcal vaccine in the near future.
O impacto do ENOS na variabilidade temporal da precipitação pluviométrica na bacia hidrográfica do rio Piquiri-PR
Authors: Guimarães Correa Márcio Greyck , Galvani Emerson
Published: March 2021

Esta pesquisa foi desenvolvida considerando os impactos causados pelo El Niño - Oscilação Sul (ENOS) na variabilidade da precipitação. Apresenta uma proposta de uso de um modelo estatístico inferencial para a identificação da participação do fenômeno, por meio do Índice de Oscilação Sul (IOS), na variabilidade temporal da precipitação pluviométrica na bacia hidrográfica do rio Piquiri-PR. Para o desenvolvimento da pesquisa optou-se por analisar a ocorrência de ENOS por meio do IOS, com os dados disponibilizados pelo National Climate Centre da Austrália e dados mensais de precipitação pluviométrica do Instituto das Águas do Paraná para 41 postos pluviométricos com série histórica entre 1976 e 2010. Os resultados obtidos indicam que 31,4% dos meses da série histórica analisada tiveram IOS negativo ≤ -7, enquanto 21,1% obtiveram IOS positivo ≥ +7 e 47,5% dos meses foram considerados neutros com relação ao IOS. Aplicou-se o modelo estatístico GAMLSS (Modelos Aditivos Generalizados para Posição, Escala e Forma) para identificar a influência do ENOS na precipitação média mensal. Observou-se uma defasagem de até um mês entre o registro dos desvios de IOS e a precipitação registrada na bacia hidrográfica do rio Piquiri. Identificou-se ainda uma diminuição na precipitação média mensal quando se aumenta em média uma unidade de IOS ao modelo inferencial. Essa diminuição mostrou-se variável entre as três áreas de drenagem consideradas no estudo.
Pengaruh Fasilitas, Minat dan Motivasi Terhadap Pengembangan Kompetensi Mahasiswa di Masa Pandemic Virus Corona-19
Authors: Syardiansah Syardiansah , Safuridar Safuridar
Published: March 2021

Student competence is one of the final goals to be achieved by higher education. High competence will be able to provide great opportunities for students to win the competition in this day and age. In education a number of things are able to develop competencies including educational facilities, students' interests and motivation. This study aims to determine the effect of facilities, interests and motivation on student competencies during the Corana virus. When the corona virus took place, the distance lecture was implemented, where students and lecturers did not meet directly during the education process. Based on the results of the study it was found that partially the facility had a positive and significant effect on the development of student competencies with a tig value of 0,000 <0.05. Interest in pasial has a significant and positive effect on the development of student competencies with a t-sig value of 0.005 <0.05. And the motivational variable has a positive and significant effect on the development of student competencies with a tig value of 0.004 <0.05. Simultaneously variable facilities, interests and motivation have a positive and significant effect on the development of student competencies with a F sig value of 0,000 <0.05. The coefficient of determination of 0.452 means that the facilities, interests and motivation variables have 45.2% of the development of student competencies.
Pengaruh Model Pembelajaran Kooperatif Student Teams Achievement Division dengan Kemampuan Awal Matematis terhadap Pemahaman Konsep Matematis Siswa
Authors: Sumini Sumini
Published: March 2021

This study aims to determine the understanding of students' mathematical concepts taught using the Student Teams Achievement Division (STAD) with a problem-based learning (PBM) approach with a heuristic approach; the effect of STAD learning with the PBM approach on students' understanding of mathematical concepts in terms of high and low Initial Mathematical Ability (KAM); the effect of STAD learning with a heuristic approach on students' understanding of mathematical concepts in terms of high and low KAM; the effect of the interaction between STAD learning (with the PBM approach and the heuristic approach) and the initial mathematical ability (high KAM and low KAM) on students' understanding of mathematical concepts. This research was conducted at SDN 112233 Sidorejo, Labuhanbatu Selatan Regency from October to December 2019. A sample of 44 people was taken by random sampling. The instruments for collecting data were the students' mathematical concept understanding test and the KAM test. The data analysis used the one way annova test, simple regression test, and two way annova test. The results of the analysis show that the students' understanding of mathematical concepts taught using STAD with the PBM approach is higher than that of the STAD with a heuristic approach; There is a positive effect of STAD learning with the PBM approach on students' understanding of mathematical concepts in terms of high and low KAM; there is a positive effect of STAD learning with a heuristic approach on students' understanding of mathematical concepts in terms of high and low KAM; There is a significant interaction effect between STAD learning (with the PBM approach and with the heuristic approach) and the initial mathematical ability (high KAM and low KAM) on students' understanding of mathematical concepts.
Pengembangan Media Pembelajaran Berbasis Macromedia Flash 8 dalam Upaya Meningkatkan Efektifitas Belajar Ilmu Pengetahuan Sosial
Authors: Harahap Ongku Desix B.
Published: March 2021

The aims of this study were to produce and to find out the effectivity of using the Macromedia Flash Profesional 8-based learning media as well. The type of this study was a Research and Development model adopted from ADDIE. The steps of ADDIE model were including Analyze, Design, Develop, Implement, and Evaluate. The trial subjects consisted of material experts of social science, learning design experts, learning media experts, three students of individual trial, nine students of small group trial, and also thirty students of main field trial. The data about the quality of this product was collected by using questionairres. The data was collected and analyzed by qualitative descriptive analysis. The results of Macromedia Flash Profesional 8-based learning media on the subject material of local environmental maps showed that:  the validation of the entire material experts showed that the media was extremely good (96.47%); the validation of the entire design experts showed that the media was extremely good (91.81%); the validation of learning media was extremely good (90.00%); the validation of individual trial was extremely good (88.59%); the validation of small group trial was extremely good (91.75%); and the validation of main field trial was extremely good (95.76%). Based on the result of hypothetical test proved that there was a significant difference between students’ learning  taught by Macromedia Flash Profesional 8  conventional learning.
Peran Masyarakat dalam Pencapaian Target Sustainable Development Goals Desa Layak Air Bersih dan Sanitasi
Authors: Susanti Rina , Rifardi Rifardi , Kadarisman Yoskar
Published: March 2021

The article aims to analyze the forms of role of community in the efforts to support the attainment of Sustainable Development Goals Village of clean water and sanitation. The study used perspective review over community participation by Keith Davis to take an approach over the problem. The data were collected through documentation and filling in the questionnaires by 158 households of Talontam village. The data were analyzed by using quantitative descriptive approach. The result of the study showed that to attain the sixth of Sustainable Development Goals village community who did not have access to clean water and sanitation participated in the forms of labor, idea, goods, and money that were executed in a form of saving money to build shallow borehole, hand-washing facilities, standard enclosed septic tanks and sanitations; building rainwater tanks; purchasing water filter; relocating septic tank; reusing used containers for hand washing; and participating in health counseling. The community group made efforts to maintain the sustainability of access to clean water and sanitation in the forms of conserving water and infrastructure maintenance, also preserve river area.
Hubungan Antara Perkembangan Moral dengan Perilaku Prososial Pada Remaja di Perguruan Ki Hajar Dewantara Kotapinang
Authors: Istiana Istiana , Hasibuan Nur Wahyuni R.
Published: March 2021

The purpose of this study was to look at the relationship between moral development and prosocial behavior in adolescents. The dependent variable in this study was prosocial behavior and the independent variable Moral Development. The population in this study were all students of class X SMK Ki Hajar Dewanatara Kotapinang, amounting to 392 samples in this study as many as 70 students / I of Ki Hajar Dewantara college Kotapinang. The sampling technique used purposive sampling. Measuring instruments used are the Moral Development scale and Prosocial Behavior scale using a Likert scale. Data management in this study uses Pearson product moment correlation techniques. The results of the study showed a correlation of 0.825 with p <0.000, this means there is a significant positive correlation between moral development and prosocial behavior. This means that the better the moral development, the higher the prosocial behavior, on the contrary the worse the moral development is the prosocial behavior. The determinant coefficient of the correlation is R2 = 0.681, which means that moral development contributes effectively to prosocial behavior by 68%, while the remaining 31.9%. mood. The hypothetical mean in this study for the moral development variable was 65 and for the prosocial behavior variable was 65. The empirical mean for moral development was 86.86 and the prosocial behavior was 85.51.
Investigación de músicas tradicionales en tiempos del “Socialismo del siglo XXI” en Venezuela
Authors: Lengwinat Katrin
Published: March 2021

Venezuela ha vivido cambios radicales en los últimos 20 años, tanto cambios político ideológicos como de políticas culturales y educativas que han dejado profundas huellas en el quehacer (etno)musicológico. Se distinguen claramente dos etapas. La primera fue liderada desde 1999 por Hugo Chávez, cuyas orientaciones impactaron considerablemente en el interés por las culturas populares y la construcción de valores para un nuevo ideal liberador. Era una fase de abundancia y entusiasmo con muchas iniciativas, pero también de falta de tolerancia entre los adversarios. La segunda etapa ha comenzado en 2013 con la muerte de Chávez y pretende seguir esa orientación, pero el estrangulante embargo internacional y la atención de algunas pocas áreas prioritarias impide su realización. De ahí se caracteriza por precariedades enormes e intentos poco exitosos de hacer sobrevivir algunos logros. Sin embargo van surgiendo nuevas iniciativas y producciones que tratan de defender una mínima continuidad y actividad, donde se acepta la integración de contrincantes.
A Historical Perspective of Mangalavattiyam
Authors: Aravinthon Suganya
Published: March 2021

From the earliest days of the Tamil music tradition, music was considered to be a combination of vocal music, instrumental music and dance. Each of these musical genres is closely intertwined. Knowledge of one helps to know about the other. Instrumental music has been interpreted as accompaniment to solo music and dance and as a solo specialty. In Bharata's book 'Natyashasthram', musical instruments are generally divided into four categories as nerve (tata) hole (kasira) ¸ skin (avanatta) ¸ kana (kanja). In this context, it is a research paper on the history and use of the Nagaswaram and thavil instruments, which are referred to today as the Mangala Vaathyam, which the Tamils ​​have merged with their culture.  This article also examines in detail the ideological changes that have taken place over time in the use of these two musical instruments. At the same time, the use of these instruments in the sociological context is taken into account. Finally, this article is a historical study of the lineage of musicians who have mastered these instruments.
RESEARCH OF THERMOMECHANICAL PROPERTIES OF UHMWPE AND ITS COMPOSITE WITH QGP AFTER EXPLOSIVE COMPRESSION
Authors: Adamenko N. A. , Agafonova G. V. , An D. A. , Kazurov A. V. , Pirozhenko V. S.
Published: March 2021

To develop the technology of explosive pressing of ultrahigh molecular weight polyethylene (UHMWPE) and its powder composite mixtures with inorganic fillers, the thermomechanical properties of an unfilled polymer and a composite containing 3% coke graphite powder (KGP) after explosive pressing were studied. It was found that explosive pressing with a pressure of 0.25-1.3 gpa provides high heat resistance of UHMWPE and the studied composite (154-156 °C), and the filler restrains the thermal deformation expansion of the polymer, which is associated with increased intermolecular and adhesive interaction at the phase boundary. Thus, the method of explosive pressing can be recommended for industrial processing of UHMWPE and its composite mixture with 3 % KGP.
Reflective Inquiry Practices of Instructional Leaders in Public Schools in Manila, Philippines
Authors: Castaño Kathleen Marie N. , Litao Rodrigo A.
Published: March 2021

Objective - This study aims to explore the reflective inquiry practices of instructional leaders and examine if there is significant difference in the respondents’ reflective inquiry practices based on their personal profile.
Methodology/Technique – The survey-questionnaire underwent reliability testing and yielded a result of .936. Appropriate statistical tools such as frequency or mean and ANOVA were used to determine the reflective inquiry practices of the instructional leaders and the significant difference of reflective inquiry based on their personal profile.
Finding – The results indicate that the instructional leaders’ level of reflective inquiry practices is high, and it has no significant difference based on their personal profile. However, there exists a significant difference in the respondents’ level of reflective inquiry practices according to years of service and educational attainment.
Novelty – Much research has investigated reflective inquiry as a pedagogical practice of teachers, but very few have attempted to study reflective inquiry as a supervisory practice of instructional leaders. There have been no empirical studies that have made use of reflective inquiry in the professional practice of instructional leaders in the local context.
Type of Paper: Empirical
JEL Classification: I120, I121.

Keywords: Reflective Inquiry, Reflective Practice, Instructional Leaders.

Reference to this paper should be made as follows: Castaño, K.M.N; Litao, R.A. (2021). Reflective Inquiry Practices of Instructional Leaders in Public Schools in Manila, Philippines, GATR Global J. Bus. Soc. Sci. Review, 9(1): 10 – 22. https://doi.org/10.35609/gjbssr.2021.9.1(2)
Predictors of Emotional Intelligence among Preschool Children in Kuala Lumpur, Malaysia
Authors: Ern Tun Ju , Arshat Zarinah , Ismail Nellie
Published: March 2021

Objective - Emotional Intelligence (EI) among preschool children is an important area to be studied. Children who have deficits in EI tend to have problems in adjustment and their lives were insufficiently rewarded. Therefore, they would regulate their emotions in alienating ways or take drastic actions to escape from problems. This study aims to address the predictors of emotional intelligence among preschool children.
Methodology/Technique – The study was conducted in Kuala Lumpur Malaysia. Cross sectional questionnaire with Screen Time Questionnaire (STQ), Child Behavior Inventory of Playfulness (CBI), Adult Involvement in Media Scale (AIM) and Parents Rating Scales of Emotional Intelligence were prepared for 217 mothers with children aged 4 to 6 years in private preschools, Kuala Lumpur.
Finding – Pearson correlation analyses revealed that mother’s education (r = .16, p < .05), children’s playfulness (r = .42, p < .01) and parental monitoring (r = .35, p < .01) were significant positively associated with emotional intelligence but no significant relationship was found between screen time and emotional intelligence. However, in multiple linear regression analysis only indicated that playfulness (β= .29, p < 0.00) and parental monitoring (β= .27, p < 0.00) were significant predictors of children’s EI in this study.
Type of Paper: Empirical
JEL Classification: A21, J24, O15.

Keywords: Emotional Intelligence; Parental Monitoring; Playfulness; Preschool Children; Screen Time.

Reference to this paper should be made as follows: Ern, T.J; Arshat, Z; Ismail, N. (2021). Predictors of Emotional Intelligence among Preschool Children in Kuala Lumpur, Malaysia, GATR Global J. Bus. Soc. Sci. Review, 9(1): 23 – 32. https://doi.org/10.35609/gjbssr.2021.9.1(3)
The effects of loyalty, Satisfaction, and motivation on student’s performance: A study of higher education in South Africa
Authors: Chinomona Elizabeth , Bikissa-Macongue Marie Brinda
Published: March 2021

Objective - Worldwide, higher education is critical for the social economic development of the society. However African countries such as South Africa, fail to produce quality graduates capable of facing the challenges of the fourth industrial revolution. Considering the increasingly competitive and dynamic environment, African countries can no longer ignore the needs and factors required to enhance student performance. The aim of this research is to examine the influence of student motivation, satisfaction and loyalty on the student performance of higher education in South Africa.
Methodology/Technique – A quantitative approach was adopted in which a questionnaire was used to collect data from 400 students and 335 was usable yielding a valid response rate of 84%. The data was analyzed with the aid of 2 software programs namely, statistical package for social science (SPSS 25.0) and analysis of moment structures (AMOS 25.0). In addition, confirmatory factors analysis (CFA) and structural equation modelling (SEM) were used to test the relationship between constructs and development of the hypotheses.
Finding and Novelty – The current findings reveal that students who are motivated, satisfied and loyal to their institution are more likely to perform better than those who are not. The results also reveal that there is a significant relationship between student satisfaction and student performance. It was also shown that the higher the level of satisfaction, loyalty and motivation, the better the performance. Therefore, it is recommended that universities or institutions develop an environment that promote satisfaction, loyalty and motivation of their students.
Type of Paper: Empirical.
JEL Classification: 121, 128.

Keywords: Student Motivation; Student Satisfaction; Student Loyalty; Student Performance

Reference to this paper should be made as follows: Chinomona, E; Macongue, M.B.B. (2021). The effects of loyalty, Satisfaction, and motivation on student’s performance: A study of higher education in South Africa, GATR Global J. Bus. Soc. Sci. Review, 9(1): 41 – 49. https://doi.org/10.35609/gjbssr.2021.9.1(5)
Investigating University Characteristics on Personality Traits
Authors: Sripongpun Kullanun , Saksamrit Nattanan , Intarawong Watcharapong , Ayudhya Pattama Suriyakul Na
Published: March 2021

Objective - This study aims to extend the brand personality concept by applying this concept to the organization, i.e., the university.
Methodology/Technique – A questionnaire was designed based on Aaker (1997)’s 5 dimensions of brand personality scale to collect the data. 400 Thai undergraduate students of Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus participated in this study. Participants were first informed of the study description and instructed to think of a university as if it were a person and to rate on a five-point scale (1 = not at all descriptive, 5 = extremely descriptive). In the data analysis, descriptive statistics (mean and standard deviation) and exploratory factor analysis (EFA) were used.
Finding – The results from the exploratory factor analysis (EFA) with a varimax rotation showed 5 factors of university personality. Factor 1 represents competence dimension having 10 items (successful, leader, technical, corporate, cool, hardworking, secure, spirited, confident and reliable). Factor 2 represents sophistication dimension which had 4 items (glamorous, good looking, smooth and upper class). Factor 3 represents ruggedness dimension which had 5 items (western, tough, masculine, rugged and outdoorsy). Factor 4 represents sincerity dimension which had 2 items (honest and sincere). The last factor was excitement dimension which had only 1 item, imaginative. Furthermore, according to student perspective, the majority of university personality dimensions of Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus was ruggedness dimension.
Novelty – Research examining the dimensions of organization personality is still scant. To fill the gap, the current study was conducted to demonstrate how the brand personality concept was applicable when the organization was viewed as a brand. Therefore, it is a preliminary step toward such direction to extend and apply the brand personality concept to a new different area.
Type of Paper: Empirical.
JEL Classification: M10, M19.
Keywords: University Personality; University Characteristics; Personality Traits; Brand Personality Concept.
Reference to this paper should be made as follows: Sripongpun, K; Saksamrit, N; Intarawong, W; Ayudhya, P.S.N. (2021). Investigating University Characteristics on Personality Traits, GATR Global J. Bus. Soc. Sci. Review, 9(1): 58 – 64. https://doi.org/10.35609/gjbssr.2021.9.1(7)
Concepções de letramento para o ensino da língua portuguesa em tempos de uso de artefatos digitais
Authors: Vergna Márcia Aparecida
Published: March 2021

Este artigo objetiva apresentar um estudo teórico acerca das principais concepções de letramento que embasam o ensino da Língua Portuguesa na contemporaneidade. Para isso, desenvolvemos uma pesquisa bibliográfica. Na atualidade, há, majoritariamente, três concepções teóricas acerca do letramento: Novos Estudos do Letramento, Pedagogia dos Multiletramentos e Novos letramentos, cujos principais representantes são Brian Street, Magda Soares e Ângela Kleiman, para Novos Estudos do Letramento; Bill Cope, Mary Kalantzis e Roxane Rojo, para Multiletramentos; e Colin Lankshear e Michele Knobel, para Novos Letramentos. Depreende-se, do estudo, que toda visão de letramento está atrelada a uma concepção de linguagem e a uma concepção de sociedade, e que a escola é a principal agência desse letramento, tendendo a desenvolver suas práticas de leitura e escrita a partir de um determinado posicionamento ideológico, estabelecido por valores, relações de poder e perspectivas que refletem o modelo de letramento escolhido para orientar a elaboração do currículo a ser implementado e todo o trabalho em sala de aula.
What are the factors that influence the use of social networks as a means to serve pedagogy?
Authors: Gómez-García Melchor , Boumadan Moussa , Soto-Varela Roberto , Gutiérrez-García Ángeles
Published: March 2021

Social networks are a key element in young people's and teenagers' leisure time. But their influence goes beyond the field of entertainment further reaching educational and training environments. These tools can support and improve student learning, but it is clear that they can also be an inconvenience or a potential danger for the youth. The purpose of this research is to describe the profiles of teachers who use social networks as resources for their teaching, both inside and outside the classroom. It also seeks to know the characteristics that influence their incorporation as learning elements. For this reason, a secondary exploitation of the PISA 2018 database is carried out. It contains the data of 21,621 teachers of the secondary education level from the 19 regions of Spain. Multilevel analysis is used as a method of data analysis. The results point out differences in use according to the Autonomous Communities, showing the importance of the age of the teacher and the number of years of experience, both for their use in the classroom and to cover their training needs. Quality teaching requires a commitment to technological resources; therefore, decisive to know these elements in order to design teachers and educational institutions.
Desenvolvimento de um corretor ortográfico
Authors: Araujo Leonardo Carneiro de , Benevides Aline de Lima , Sansão João Pedro Hallack
Published: March 2021

Corretores ortográficos são ferramentas computacionais utilizadas cotidianamente na redação de textos e demensagens ou, de forma oculta, na busca por informação e mineração de dados. Diante de sua relevância,o presente trabalho apresenta o percurso histórico de desenvolvimento dos corretores ortográficos e ilustracomo, de forma simples, é possível criar um corretor ortográfico eficiente a partir da proposta de Norvig (2007). Salientam-se, também, algumas ferramentas e as estratégias empregadas na elaboração de corretores,como a remoção de afixos e a computação de n-gramas. Explicita-se, ainda, a implementação do corretorortográfico de Norvig (2007) e verifica-se seu desempenho na tarefa de correção automática em diferentesconjuntos de dados de erros ortográficos. Expõe-se, também, uma comparação na performance de um corretorortográfico que se vale da remoção de afixos em relação a um corretor que não adota semelhante estratégia.
L’unité d’une vie, d’un enseignement, d’une œuvre
Authors: Goldenstein Catherine
Published: March 2021

This essay offers a personal account of the author’s friendship and collaboration with Paul Ricœur in the last years of his life. Catherine Goldenstein, who, after Ricœur’s death, took care of his manuscripts and organized the archives of the Fonds Ricœur, reflects on her conversations with the philosopher. Their contents, recorded as she remembers them, illuminate Ricœur’s philosophical endeavors and his work as an academic instructor. Ricœur is also viewed through the testimony of letters addressed by him to the author, through his personal notes, and through the events of his academic career. These perspectives combine to offer a concise and challenging vision of a life devoted to reflection, whose ultimate boundary is a reality we do not know directly: that of eternity.
Exploratory Designing a Magnetic Induction Tomography Sensor Coil Circuit for Agarwood
Authors:   Faculty of Electrical and Electronics Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia., Ishak* Nurfarahin , Lee Chua King ,   Faculty of Electrical and Electronics Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia. Email: chua.uthm.edu.my, Muji Siti Zarina Mohd ,   Faculty of Electrical and Electronics Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia, Latip Abdul Azlin Bin Abdul ,   Smart Modular Technologies (M) Sdn. Bhd, Pulau Pinang, Malaysia,
Published: March 2021

Magnetic induction tomography (MIT) is an imaging modality focused on tracing the transmission of electrical conductivity within the body. This technique used to image electromagnetic properties of an object by using the eddy current effect. This paper explains the primary analog transceiver circuit of MIT. This is a surrogate design of the analog system in the electronic components for pattern recognition and conditioning. This MIT system operating with a single excitation signal frequency at 10MHz. The input voltage received by the receiver sensor would become the circuit input which contained information. The four stages process in the receiver circuit successfully captured the signal from the transmitter. These subsystems have their functions and can be put into effect in many ways. Therefore, the circuit was used to be reliable at agarwood samples. The approach transceiver circuit were successful and functional for MIT coil sensing. The input voltage feedback depending on the conductivity of the samples. As the dielectric properties of samples are high, the input voltage at the receiver also high. Therefore, 10MHz can use for agriculture while this range of frequency is usually used in biomedical applications. Series – parallel circuit gives a greater induction factor and therefore more induced voltage for the load of the receiver.
Explainable AI in Internet of Control System Distributed at Edge-Cloud Architecture
Authors:   Electrical and Computer Engineering Department, university of Wisconsin-Platteville, Platteville, Wisconsin, USA, Roopaei* Mehdi , Durian Hunter ,   Electrical and Computer Engineering Department, university of Wisconsin-Platteville, Platteville, Wisconsin, USA., Godiska Joey ,   Electrical and Computer Engineering Department, university of Wisconsin-Platteville, Platteville, Wisconsin, USA.
Published: March 2021

Many current control systems are restricted to highly controlled environments. In complicated dynamic and unstructured environments such as autonomous vehicles, control systems must be able to deal with more and more complex state situations. In complex systems with large number of states, it is often too slow to use optimal planners and developing heuristic tactics for high level goals can be challenging. AI control is an attractive alternative to traditional control architectures due to their capability to approximate optimal solutions in high dimensional state spaces without requiring a human-designed heuristic. Explainable AI control attempts to produce a human readable control command which is both interpretable and manipulable. This paper is an attempt to propose an architecture for explainable AI control in edge-cloud environment in which there are connected autonomous agents that need to be controlled. In this architecture the designed controller is distributed across the edge and cloud platform using explainable AI. This architecture could be introduced as Internet of Control Systems (IoCS), which could be applied as distributed tactics to control of connected autonomous agents. The IoCS attempts to unleash AI services using resources at the edge near the autonomous agents and make intelligent edge for dynamic, adaptive, and optimized AI control.
More on Diophantine Equations
Authors:   Lecturer, N.K. Bagrodias, Rohini, Sec 9, New Delhi-110085., Tahiliani Dr. Sanjay
Published: March 2021

In this paper, we will find the solutions of many Diophantine equations.Some are of the form 2(3 x )+ 5(7y ) +11=z2 for non negative x,y and z. we also investigate solutions ofthe Diophantine equation 2(x+3) +11(3y ) ─ 1= z2 for non negative x,y and z and finally, westudy the Diophantine equations (k!×k)n = (n!×n)k and ( 𝒌! 𝒌 ) 𝒏 = ( 𝒏! 𝒏 ) 𝒌 where k and n are positive integers. We show that the first one holds if and only if k=n and the second one holds if and only if k=n or (k,n) =(1,2),(2,1).We also investigate Diophantine equation u! + v! = uv and u! ─ v! = uv .
A Novel Integer Linear Programming Formulation for Job-Shop Scheduling Problems
Authors: Liu Anbang , Luh Peter , Yan Bing , Bragin Mikhail
Published: March 2021

ob-shop scheduling is an important but difficult problem arising in low-volume high-variety manufacturing. It is usually solved at the beginning of each shift with strict computational time requirements. For fast resolution of the problem, a promising direction is to formulate it in an Integer Linear Programming (ILP) form so as to take advantages of widely available ILP methods such as Branch-and-Cut (B&C). Nevertheless, computational requirements on ILP methods for existing ILP formulations are high. In this paper, a novel ILP formulation is presented. In the formulation, a set of binary indicator variables indicating whether an operation begins at a time slot on a machine group or not is selected as decision variables, and all constraints are innovatively formulated based on this set of variables. For fast resolution of large problems, our recent decomposition-and-coordination method “Surrogate Absolute-Value Lagrangian Relaxation” (SAVLR) is enhanced by using a 3-segment piecewise linear penalty function, which more accurately approximates a quadratic penalty function as compared to an absolute-value function. Testing results demonstrate that our new formulation drastically reduces the computational requirements of B&C as compared to our previous formulation. For large problems where B&C has difficulties, near-optimal solutions are efficiently obtained by using the enhanced SAVLR under the new formulation.
ANALISA FAKTOR YANG MEMPENGARUHI KEPUTUSAN DALAM MEMILIH SIMPANAN MUDHORABAH PADA KOPERASI BMT ISLAM ABDURRAB PEKANBARU
Authors: JANNAH MIFTAHUL , TRIANTO BUDI , CHANDRA ADE
Published: March 2021

Tujuan dari penelitian ini adalah untuk mengetahui faktor apa saja yang mempengaruhi anggota dalam memilih simpanan mudharabah pada BMT Islam Abdurrab Pekanbaru. Adapun yang menjadi sampel dalam penelitian ini adalah anggota BMT Islam Abdurrab yang memiliki tabungan mudhorabah. Data dikumpulkan dengan menggunakan kuisioner dengan menggunakan skala Likert 1 – 5 dan dianalisa dengan menggunakan analisa regresi berganda dan penggunakan program SPSS 26. Hasil penelitian ini menunjukkan bahwa factor yang mempengaruhi keputusan anggota dalam memilih simpanan mudhorabah pada BMT Islam Abdurrab adalah factor pengetahuan. Sementara factor social, factor budaya dan factor pribadi perpengaruh secara positif tetapi tidak signifikan. Hasil penelitian ini memberikan implikasi bahwasanya untuk meningkatkan jumlah anggota yang ingin menyimpan dalam bentuk simpanan mudhorabah, BMT Islam Abdurrab harus memberikan edukakasi kepada anggota dan calon anggota terkait produk tersebut
ANALISA IMPLEMENTASI BANK GARANSI PADA BANK MUAMALAT INDONESIA
Authors: Rahmayati Rahmayati , Sriyanti Erni
Published: March 2021

Tujuan penelitian ini adalah untuk melihat implementasi bank garansi yang dilakukan oleh Bank Muamalat Indonesia KC Balaikota Medan. Penelitian ini dilakukan dengan menggunakan metode kualitatif dengan menggunakan pendekatan studi empiris dimana data bersumber dari data primer diambil dengan melakukan wawancara mendalam dan dokumentasi. Hasil penelitian ini memperlihatkan bahwa pelaksanaan bank garansi telah mengikuti syarat dan ketentuan berupa jaminan dalam suatu proyek dimana sistem pembukaan jaminan bank melalui pekerjaan yang harus dilakukan oleh pihak-pihak yang terlibat dalam bank garansi yang terdiri dari kontraktor, pemberi kerja, dan bank telah melakukan cara yang secara teratur dihubungkan bersama untuk memperlancar arus informasi dalam bank garansi. Implementasi tersebut sudah sesuai dengan ketentuan yang dipersyaratkan dalam ekonomi Islam, namun terdapat kendala yang dihadapi dalam mengimplementasikan bank garansi ini adalah terkait dengan prosedur pembukaan bank garansi.
Analisis Online Consumer Review Terhadap Keputusan Pembelian pada E-Commerce Kecantikan
Authors: Regina Dwi Amelia  , Michael Michael , Mulyandi Rachman
Published: March 2021

Meningkatnya pengguna internet di Indonesia beriringan dengan kemajuan teknologi internet, kegiatan jual beli pun mengikuti perkembangan teknologi dengan memanfaatkan kehadiran internet. Oleh karena itu, Perubahan perilaku hidup masyarakat dalam hal berbelanja yang meninggalkan cara konvensional menjadi digital kian terasa adanya. Teknik pengumpulan data yang digunakan dalam penelitian ini yaitu metode literature review dengan menggunakan data sekunder yang berasal dari peneliti terdahulu, buku terkait, serta website organisasi/perusahaan tertentu. Objek penelitian dalam penelitian ini yaitu e-commerce kecantikan. Hasil penelitian menyimpulkan bahwa variabel online consumer review (X) memiliki pengaruh terhadap keputusan pembelian (Y).