scholarly journals Factor Analysis Approach to Classify COVID-19 Datasets in Several Regions

2021 ◽  
Author(s):  
Mohammad Reza Mahmoudi ◽  
Dumitru Baleanu ◽  
Shahab S. Band ◽  
Amir Mosavi
Keyword(s):  
Factor Analysis ◽  
Analysis Approach ◽  
Pearson’S Correlation ◽  
Pearson's Correlation ◽  
The Relationship

The aim of this research is to investigate the relationship between the counts of cases with Covid-19 and the deaths due to it in seven countries that are severely affected by the pandemic. First, the Pearson’s correlation is used to determine the relationships among these countries. Then, the factor analysis is applied to categorize these countries based on their relationships.

scholarly journals Factor Analysis Approach to Classify COVID-19 Datasets in Several Regions

2021 ◽  
Author(s):  
Amir Mosavi ◽  
Mohammad Reza Mahmoudi ◽  
Dumitru Baleanu ◽  
Shahab S Band
Keyword(s):  
Factor Analysis ◽  
Analysis Approach ◽  
Pearson’S Correlation ◽  
Pearson's Correlation ◽  
The Relationship

The aim of this research is to investigate the relationship between the counts of cases with Covid-19 and the deaths due to it in seven countries that are severely affected by the pandemic. First, the Pearson’s correlation is used to determine the relationships among these countries. Then, the factor analysis is applied to categorize these countries based on their relationships.

Relationship amongst ResearchGate altmetric indicators and Scopus bibliometric indicators

2015 ◽  
Vol 116 (9/10) ◽  
pp. 564-577 ◽  
Author(s):  
RISHABH SHRIVASTAVA ◽  
Preeti Mahajan
Keyword(s):  
Sample Size ◽  
Correlation Coefficients ◽  
Strong Positive Correlation ◽  
Bibliometric Indicators ◽  
Pearson’S Correlation ◽  
Content Type ◽  
Positive Correlation ◽  
Pearson's Correlation ◽  
Different Characteristics ◽  
The Relationship

Purpose – The purpose of this paper is twofold. First, the study aims to investigate the relationship between the altmetric indicators from ResearchGate (RG) and the bibliometric indicators from the Scopus database. Second, the study seeks to examine the relationship amongst the RG altmetric indicators themselves. RG is a rich source of altmetric indicators such as Citations, RGScore, Impact Points, Profile Views, Publication Views, etc. Design/methodology/approach – For establishing whether RG metrics showed the same results as the established sources of metrics, Pearson’s correlation coefficients were calculated between the metrics provided by RG and the metrics obtained from Scopus. Pearson’s correlation coefficients were also calculated for the metrics provided by RG. The data were collected by visiting the profile pages of all the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Findings – The study showed that most of the RG metrics showed strong positive correlation with the Scopus metrics, except for RGScore (RG) and Citations (Scopus), which showed moderate positive correlation. It was also found that the RG metrics showed moderate to strong positive correlation amongst each other. Research limitations/implications – The limitation of this study is that more and more scientists and researchers may join RG in the future, therefore the data may change. The study focuses on the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Perhaps further studies can be conducted by increasing the sample size and by taking a different sample size having different characteristics. Originality/value – Being an emerging field, not much has been conducted in the area of altmetrics. Very few studies have been conducted on the reach of academic social networks like RG and their validity as sources of altmetric indicators like RGScore, Impact Points, etc. The findings offer insights to the question whether RG can be used as an alternative to traditional sources of bibliometric indicators, especially with reference to a rapidly developing country such as India.

scholarly journals The role of financial awareness for viable and sustainable small-medium enterprises in Kwa-Zulu Natal, Durban

2021 ◽  
Author(s):  
◽  
Thabiso Sthembiso Msomi
Keyword(s):  
Regression Analysis ◽  
Regression Model ◽  
Financial Accounting ◽  
Access To Finance ◽  
Pearson’S Correlation ◽  
Absolute Value ◽  
Pearson's Correlation ◽  
R Value ◽  
Financial Awareness ◽  
The Relationship

The objective of this study is to examine financial awareness for viable and sustainable smallmedium-enterprises in Kwa-Zulu Natal, Durban. In this study, the researcher examined factors for SME sustainability and viability as they influence organisational survival. The specific objectives are outlined as follows: to examine the influence of financial awareness on SME viability and sustainability; to establish the relationship between financial accounting skills and sustainable SMEs; to establish the relationship between financial awareness and financial accounting skills; and to determine the Influences of budgeting and financial awareness on SME sustainability. The quantitative research method was adopted for this study and the purposive sampling technique was chosen to select the participants for this study. The study collected primary data from respondents who are owners of SMEs in the retail, construction, manufacturing sectors, etc. Data was analysed using SPSS. A total of 310 research questionnaires was administered and 304 research questionnaires were returned for analysis (giving a 98% response rate). A regression analysis and Pearson’s correlation analysis were conducted to address the specific objectives of the study. The study identified access to market, access to finance and financial accounting skills as the independent variables, while SME sustainability was the dependent variable of the regression model. The findings suggest that access to finance has the largest absolute value (0.425), which indicates that access to finance uniquely accounts for the larger proportion of the variance in the regression model. The outcome of Pearson’s correlation shows moderate correlation (r value is 0.531) between financial accounting skills and sustainable SMEs. Moreover, there was a weak correlation (r value is 0.457) between financial awareness and financial accounting skills. The outcome of the regression analysis suggests that budgeting has the largest absolute value (0.372), which indicates that budgeting uniquely accounts for the largest proportion of the variance in the regression analysis. The Exploratory Factor Analysis revealed nine factors that are significant to ensure sustainability and viability. The implication of the outcome is that access to finance and budgeting accounts for SME sustainability. Based on the findings from this research, it is recommended that SMEs owners should pay much attention to access to finance and budgeting in running their businesses. Again, employee performance reviews contribute to enhancing the financial accounting skills and knowledge of staff of SMEs as well. They should seek expert or professional advice before taking a loan and they should avoid loan sharks as the interest charged by loan sharks are very high which may lead to potential debt trap. It is suggested that Government agencies should help SMEs to market their products and keep their businesses viable.

scholarly journals The relationship between psychological health and spiritual wellbeing in Iranian stoma patients

2019 ◽  
Vol 17 (Sup5) ◽  
pp. S18-S22
Author(s):  
Hossein Rafiei ◽  
Kazem Hosseinzadeh ◽  
Mohammad Javad Hoseinabadi-Farahani ◽  
Ladan Naseh ◽  
Ali Razaghpoor ◽  
...  
Keyword(s):  
Psychological Health ◽  
Sampling Method ◽  
Psychological Problems ◽  
Spiritual Wellbeing ◽  
Pearson’S Correlation ◽  
Holistic Nursing ◽  
Correlation Test ◽  
Pearson's Correlation ◽  
Convenience Sampling ◽  
The Relationship

Aim: The aim of this study was to investigate the relationship between psychological problems and spiritual wellbeing in Iranian stoma patients. Methods: This descriptive-analytic study was conducted on 70 stoma patients who were enrolled through a convenience sampling method. Depression, anxiety and stress among patients were analysed using Depression, Anxiety and Stress Scale (DASS-21) questionnaire and their spiritual wellbeing was analysed using the Spiritual Wellbeing Scale (SWS). Pearson's correlation test was used to determine the relationship between depression, stress and anxiety with the total spiritual wellbeing and its dimensions. Results: The results of Pearson's correlation test showed that there was an inverse and significant correlation between stress (RR -0.728; P<0.001), anxiety (RR -0.721; P<0.001) and depression (RR -0.740; P<0.001) with the total score for spiritual wellbeing. Conclusion: These results demonstrated that there is a relationship between psychological problems and spiritual wellbeing in ostomates. That is, patients with higher spiritual wellbeing reported lower levels of psychological problems. The results of the present study can be used for holistic nursing care in these patients.

scholarly journals PATOBULINTO KETURIŲ FAKTORIŲ STRESO ĮVEIKOS KLAUSIMYNO PSICHOMETRINIAI RODIKLIAI

Psichologija ◽  
2010 ◽  
Vol 41 ◽  
pp. 96-110 ◽  
Author(s):  
Gintautas Valickas ◽  
Paulina Želvienė ◽  
Žygimantas Grakauskas
Keyword(s):  
Social Support ◽  
Factor Analysis ◽  
Problem Solving ◽  
Coping Strategy ◽  
Time Interval ◽  
Stress Coping ◽  
Coping With Stress ◽  
Pearson’S Correlation ◽  
The Third ◽  
Pearson's Correlation

Siekiant įvertinti keturių faktorių streso įveikos klausimyno psichometrinius rodiklius, buvo atlikti trys tyrimai, kuriuose iš viso dalyvavo 831 tiriamasis. Klausimynas buvo tobulinamas atsižvelgiant į anksčiau gautus patikimumo ir validumo rezultatus (Grakauskas ir Valickas, 2006). Jo patikimumas buvo tikrinamas taikant vidinio suderinamumo metodą, pakartotinį matavimą ir apskaičiuojant teiginių homogeniškumo rodiklius, o konstrukto validumas – taikant tiriančiąją ir patvirtinančiąją faktorinę analizę, taip pat dviejų klausimynų skalių įverčių koreliacinę analizę. Gauti šie skalių vidinio suderinamumo (Cronbacho alpha) rodikliai: socialinė parama (α = 0,864), problemų sprendimas (α = 0,760), emocinė iškrova(α = 0,692), vengimas (α = 0,661). Nustatytos tokios pirmos ir pakartotinės apklausos skalių įverčių vidurkių tarpusavio koreliacijos (taikytas Pearsono koreliacijos koeficientas): socialinės paramos – 0,802, problemų sprendimo – 0,791, emocinės iškrovos – 0,68, vengimo – 0,63. Išskirti keturi faktoriai yra stabilūs, paaiškina 48,504 proc. duomenų dispersijos, o visų faktoriams priskirtų teiginių apkrovos viršija 0,4 ribą (svyruoja nuo 0,415 iki 0,832). Patvirtinančiosios faktorinės analizės rezultatai rodo patenkinamą pasirinkto keturių faktorių modelio tinkamumą: χ² = 287,58, df =74; RMSEA = 0,077; GFI = 0,93; CFI = 0,87; NFI = 0,84. Keturių faktorių streso įveikos klausimyno ir įveikos strategijų klausimyno (COPE) skalės, kurių prasmė panaši, statistiškai reikšmingai koreliuoja tarpusavyje (Pearsono koreliacijos koeficientai svyruoja nuo 0,360 iki 0,809).Pagrindiniai žodžiai: streso įveika, keturių faktorių streso įveikos klausimyno patikimumas ir validumas.Psychometric characteristics of the improved four-factor coping with stress questionnaire Gintautas Valickas, Paulina Želvienė, Žygimantas Grakauskas SummaryThe article presents the process of improving the Lithuanian coping with stress questionnaire (Grakauskas ir Valickas, 2006). To assess the reliability and construct validity of the four-factor questionnaire, three studies with the participation of 831 respondents were conducted. The respondents were students of Vilnius University (average age 21.04 years) and of Vilnius gymnasiums (average age 16.42 years). In the first study, the questionnaire was submitted to 417, in the second study to 103 and in the third study to 311 respondents. In the first and second studies, statements of the questionnaire were improved, and the four-factor structure of the questionnaire was assessed. In the third study we assessed some psychometrical characteristics of the questionnaire. The following indexes of scales’ internal reliability (Cronbach’s alpha) were found: social support (α = 0.864), problem solving (α = 0.760), emotional venting (α = 0.692), avoidance (α = 0.661). The test–retest score reliability (Pearson’s correlation coefficients) varied from 0.630 (avoidance scale) to 0.802 (social support scale) (test–retest time interval was two weeks). It has been established that four factors of the questionnaire explained 48.504 per cent of data dispersion. The exploratory factor analysis also indicated a satisfactory suitability of scale items (factor loadings varied from 0.415 to 0.832). Confirmatory factor analysis data indicate a satisfactory suitability of the model of four factors (χ² = 287.58, df =74; RMSEA = 0.077; GFI = 0.93; CFI = 0.87; NFI = 0.84). A correlation between the four-factor coping with stress questionnaire and the COPE questionnaire was also assessed. The Pearson’s correlation indexes between similar scales of the two questionnaires varied from 0,360 to 0,809.Differences were also found between age and gender. University students used the problem solving and social support stress coping strategy more often than gymnasium students, while women used the social support, avoidance and emotional venting stress coping strategy more often than men.Key words: coping with stress, reliability and validity of the four-factor coping with stress questionnaire.

scholarly journals The relationship between quality of life in sarcopenia and skeletal muscle index in patients with advanced lung cancer

2021 ◽  
Vol 11 (11) ◽  
pp. 100-107
Author(s):  
V. Kechedzhyiev
Keyword(s):  
Quality Of Life ◽  
Lung Cancer ◽  
Skeletal Muscle ◽  
Correlation Analysis ◽  
Advanced Lung Cancer ◽  
Pearson’S Correlation ◽  
Skeletal Muscle Index ◽  
Pearson's Correlation ◽  
The Relationship

Introduction. Today the relevance of sarcopenia is increasing in various types of malignant neoplasms.This syndrome is most common in patients with advanced forms of cancer and can adversely affect survival, treatment outcomes, and functional status. The prevalence of sarcopenia in patients with lung cancer is higher than in other types of malignant tumors. To understand the relationship between sarcopenia and quality of life is especially important for patients with advanced cancer. Aim. To assess the relationship between skeletal muscle index (SMI) and quality of life in sarcopenia in patients with advanced lung cancer. Materials and methods. A prospective analysis was carried out of 28 patients with advanced lung cancer who have applied to the “ONCOLIFE” Medical Center since the beginning of 2021. All patients had sarcopenia on CT scan. Skeletal muscle cross-sectional area analyzed using software ImageJ (National Institutes of Health, Bethesda, MD, USA). To determine the quality of life in sarcopenia a questionnaire SarQoL was used. Pearson's correlation analysis was used to assess the correlation between quality of life and SMI. Results. Pearson's correlation analysis showed a statistically significant positive correlation between quality of life and SMI (r = 0,451, р = 0,016, N=28). Body mass index (BMI) positively correlated with quality of life (r = 0,398, р = 0,036, N=28), and age negatively correlated with SMI (r = -0,391, р = 0,040, N=28). There was no statistically significant correlation between indicators such as BMI and SMI, as well as age and quality of life. Conclusions. Quality of life in sarcopenia statistically significantly correlates with SMI in patients with metastatic lung cancer. Early diagnosis of sarcopenia is essential for timely prescription of treatment aimed at maintaining and better muscle mass, which can improve cancer patients quality of life.

scholarly journals Comparison of quantity and quality of muscle as clinical prognostic markers in patients undergoing carotid endarterectomy

2020 ◽  
Vol 93 (1111) ◽  
pp. 20200136
Author(s):  
Mohammed Abdul Waduud ◽  
Awais Ul-Hassan ◽  
Talha Naveed ◽  
Pratik Adusumilli ◽  
Thomas Alexander Slater ◽  
...  
Keyword(s):  
Carotid Endarterectomy ◽  
Cox Regression ◽  
Clinical Care ◽  
Muscle Quality ◽  
Regression Analyses ◽  
Muscle Area ◽  
Pearson’S Correlation ◽  
All Cause Mortality ◽  
Pearson's Correlation ◽  
The Relationship

Objective: The measurement of muscle area is routinely utilised in determining sarcopaenia in clinical research. However, this simple measure fails to factor in age-related morphometric changes in muscle quality such as myosteatosis. The aims of this study were to: firstly investigate the relationship between the masseter area (quantity) and density (quality), and secondly compare the prognostic clinical relevance of each parameter. Methods: Cross-sectional CT head scans were reviewed for patients undergoing carotid endarterectomy. The masseter was manually delineated and the total masseter area (TMA) and the total masseter density (TMD) calculated. Measurements of the TMA were standardised against the cranial circumference. Observer variability in measurements were assessed using Bland–Altman plots. The relationship between TMA and TMD were evaluated using Pearson’s correlation and linear regression analyses. The prognostic value of TMA and TMD were assessed using receiver operator curves and cox-regression analyses. Results: In total, 149 patients who had undergone routine CT scans prior to a carotid endarterectomy were included in this study. No significant observer variations were observed in measuring the TMA, TMD and cranium circumference. There was a significant positive correlation between standardised TMA and TMD (Pearson’s correlation 0.426, p < 0.001, adjusted R-squared 17.6%). The area under the curve for standardised TMA in predicting all-cause mortality at 30 days, 1 year and 4 years were higher when compared to TMD. Standardised TMA was only predictive of post-operative overall all-cause mortality (adjusted hazard ratio 0.38, 95% confidence interval 0.15–0.97, p = 0.043). Conclusion: We demonstrate a strong relationship between muscle size and density. However, the utilisation of muscle area is likely to be limited in routine clinical care. Advances in knowledge: Our study supports the utilisation of muscle area in clinical sarcopaenia research. We did not observe any additional prognostic advantage in quantifying muscle density.

scholarly journals Assessing Efficiency of Public Poverty Policies in UE-28 with Linguistic Variables and Fuzzy Correlation Measures

Mathematics ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 128
Author(s):  
Jorge de Andrés-Sánchez ◽  
Angel Belzunegui-Eraso ◽  
Francesc Valls-Fonayet
Keyword(s):  
Social Protection ◽  
Fuzzy Numbers ◽  
Efficiency Index ◽  
Social Expenditure ◽  
Pearson’S Correlation ◽  
Productivity Measure ◽  
Fuzzy Correlation ◽  
European System ◽  
Pearson's Correlation ◽  
The Relationship

The present study analyzes the efficiency of social expenditure by EU-28 countries within the period 2014–2018 to reduce poverty. The data are provided by programs European Union Statistics on Income and Living Conditions (EU-SILC) and European System of Integrated Social Protection Statistics (ESSPROS) of Eurostat. We first calculate the Debreu–Farrell (DF) productivity measure similarly to our previous work, published in 2020, for each EU-28 country and rank these poverty policies (PPPs) on the basis of that efficiency index. We also quantify the intensity of the relationship between efficiency and the proportion that each item of social expending suppose within the overall. When evaluating public policies within a given number of years, we have available a longitudinal set of crisp observations (usually annual) for each embedded variable and country. The observed value of variables for any country for the whole period 2014–2018 is quantified as fuzzy numbers (FNs) that are built up by aggregating crisp annual observations on those variables within that period. To rank the efficiency of PPPs, we use the concept of the expected value of an FN. To assess the relation between DF index and the relative effort done in each type of social expense, we interpret Pearson’s correlation as a linguistic variable and also use Pearson’s correlation index between FNs proposed by D.H. Hong in 2006.

scholarly journals Four Weeks of Muscular Endurance Resistance Training Does Not Alter Fatigue Index

2018 ◽  
Vol 6 (3) ◽  
pp. 32
Author(s):  
John W. Farrell III ◽  
Daniel J. Blackwood ◽  
Rebecca D. Larson
Keyword(s):  
Resistance Training ◽  
Significant Relationship ◽  
Muscular Endurance ◽  
Fatigue Index ◽  
Significant Group ◽  
Pearson’S Correlation ◽  
Leg Extension ◽  
Pearson's Correlation ◽  
Blood Lactate Accumulation ◽  
The Relationship

Background of Study: The implementation of a muscular endurance resistance training (MERT) program has been shown to be beneficial in augmenting the onset of blood lactate accumulation (OBLA). However, the effects of MERT on local muscular endurance has not been investigated. Objectives: The purposes of the current study were to investigate the effects of 4 weeks of MERT on local muscular endurance, and the relationship between OBLA and fatigue index (FI). Methods: Endurance trained males were randomly designated to either the experimental (EX) or control (CON) group: 9 EX and 8 CON. All participants continued current aerobic training. Baseline measures included OBLA, 1 repetition maximum (1RM) for: leg press (LP), leg curl (LC), and leg extension (LE). FI of the quadriceps was assessed via a dynamometer and the Thorstesson protocol. In addition, the EX group performed supervised MERT training for four weeks. A two way ANOVA was used to assess group and time differences in performance measures. The relationship between OBLA and FI was assessed using Pearson’s Correlation. Results: No significant group differences were observed in all baseline measurements (p>0.05). There were no significant group or time differences for OBLA and FI (p>0.05). Pearson’s correlation revealed no significant relationship (p>0.05, r=<0.01) existed between FI and OBLA. Conclusions: It was observed that four weeks of MERT provided an insufficient stimulus to improve OBLA and FI, and no significant relationship existed between OBLA and FI. Athletes using MERT should include additional mesocycles for favorable adaptations to local muscular endurance and OBLA.

scholarly journals Phonological consciousness and lecturing of third grade students of primary basic education. [La conciencia fonológica y la lectoescritura de estudiantes de tercer grado de educación básica primaria]

2018 ◽  
Vol 11 (1) ◽  
pp. 165-174
Author(s):  
Marivel Montes Rotela ◽  
Ivon Patricia Quessep Tapias ◽  
Lizbeth María Redondo Martínez ◽  
Karina Sofía Lastre Meza
Keyword(s):  
Data Processing ◽  
Phonological Awareness ◽  
Basic Education ◽  
Writing Process ◽  
Third Grade ◽  
Pearson’S Correlation ◽  
Third Grade Students ◽  
Kolmogorov Smirnov ◽  
Pearson's Correlation ◽  
The Relationship

AbstractThis investigative study wanted to determinate the relationship between the phonological awareness and the reading – writing process in 3th grade students from an EBP school in Sincelejo. The used instruments were the Prueba de Procesamiento Fonológico to seize the phonological awareness and the PROLEC and PROESC batteries, to measure the reading – writing process. The chosen sample were 55 students (ages 8 – 10) who were the result of previous assessments on hearing, visual and cognitive competences. The data processing was processed through an analysis using the IBM statistical package SPSS 23.0.0.0 (2015), based on the tests made by Kolmogorov–Smirnov and on Pearson’s correlation. The results show a highly relevant relationship between the phonological awareness and the output in reading – writing process.Keywords: Phonological Awareness, Writing, Reading. ResumenEl presente estudio buscó determinar la relación existente entre la conciencia fonológica y la lectoescritura de los estudiantes de tercer grado de E.B.P. Los instrumentos utilizados fueron la Prueba de Procesamiento Fonológico para medir la variable conciencia Fonológica y las baterías de PROLEC y PROESC para medir lectoescritura. La muestra consistió en 55 alumnos (8 a 10 años), que resultaron de previas valoraciones auditiva, visual y cognitiva. El procesamiento de los datos se realizó a través de un análisis utilizando el paquete Estadístico IBM SPSS 23.0.0.0 (2015), tomándose como nivel de significancia las pruebas de Kolgomorov-Smirnov, y de correlación de Pearson. Los resultados evidencian una relación altamente significativa entre la conciencia fonológica y el rendimiento en lectura y escritura.Palabras clave:  Conciencia Fonológica, Escritura, Lectura.ResumoO presente estudo buscou determinar a relação entre consciência fonológica e alfabetização de estudantes de terceiro grau da E.B.P. Os instrumentos utilizados foram o Teste de Processamento Fonológico para medir a variável consciência fonológica e as baterias PROLEC e PROESC para medir leitura e escrita. A amostra foi composta por 55 estudantes (8 a 10 anos), resultado de avaliações prévias auditivas, visuais e cognitivas. Os dados foram processados através de uma análise utilizando o pacote IBM SPSS Statistics package 23.0.0.0 (2015), tomando como nível de significância os testes de correlação de Kolgomorov-Smirnov e Pearson. Os resultados mostram uma relação altamente significativa entre consciência fonológica e desempenho em leitura e escritaPalavras-chave: Consciência Fonológica, Escrita, Leitura.

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