Correlation Coefficient
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2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rishabh Shrivastava ◽  
Preeti Mahajan

Purpose The first purpose of the present study is to investigate the coverage of journal articles in Physics in various sources of altmetrics. Secondly, the study investigates the relationship between altmetrics and citations. Finally, the study also investigates whether the relationship between citations and altmetrics was stronger or weaker for those articles that had been mentioned at least once in the sources of altmetrics. Design/methodology/approach The journal articles in Physics having at least one author from an Indian Institution and published during 2014–2018 in sources of altmetrics have been investigated. Altmetric.com was used for collecting altmetrics data. Spearman’s rank correlation coefficient (ρ) has been used as the data found to be skewed. Findings The highest coverage was found on Twitter (22.68%), followed by Facebook (3.62%) and blogs (2.18%). The coverage in the rest of the sources was less than 1%. The average Twitter mentions for journal articles tweeted at least once was found to be 4 (3.99) and for Facebook mentions, it was found to be 1.48. Correlations between Twitter mentions–citations and Facebook mentions–citation were found to be statistically significant but low to weak positive. Research limitations/implications The study concludes that due to the low coverage of journal articles, altmetrics should be used cautiously for research evaluation keeping in mind the disciplinary differences. The study also suggests that altmetrics can function as complementary to citation-based metrics. Originality/value The study is one of the first large scale altmetrics studies dealing with research in Physics. Also, Indian research has not been attended to in the altmetrics literature and the present study shall fill that void.


Author(s):  
H. Bougrine ◽  
A. Mebarkia ◽  
S. Bechkri

Background: In the present study, we have set a goal, to study the genetic variability and phylogenetic affinities of 26 spontaneous Vicia sativa L. accessions collected in Algeria, as part of the recovery and enhancement of the local genetic heritage and its integration into the breeding and varietal creation programs. Methods: Morphological traits, performance parameters and phenological stages of each accession were tracked during an experimental test in pots under greenhouse conditions from December 29, 2019 to June 1, 2020. An eco-geographical characterization of samples was also carried out through geographical coordinates. On the other side and for the first time in Algeria, soil analyses of each site were undertaken. Result: The phylogenetic study of accessions confirm the taxonomic complexity of the group V. sativa L. According to the principal component analyses and kruskal-Wallis test, the most segregating variables with the highest values and the largest K variance ratios are most of the attributes associated with the flower, pod and seed. The association of the two dissimilarity matrix carried out by a Mantel test between the morphological and eco-geographic parameters showed a significant effect with a p value = 0.004 at the threshold of alpha=0.05 and a correlation coefficient r (AB) = 0.156.


Author(s):  
Frederick Mun ◽  
Ahnryul Choi

Abstract Background Foot pressure distribution can be used as a quantitative parameter for evaluating anatomical deformity of the foot and for diagnosing and treating pathological gait, falling, and pressure sores in diabetes. The objective of this study was to propose a deep learning model that could predict pressure distribution of the whole foot based on information obtained from a small number of pressure sensors in an insole. Methods Twenty young and twenty older adults walked a straight pathway at a preferred speed with a Pedar-X system in anti-skid socks. A long short-term memory (LSTM) model was used to predict foot pressure distribution. Pressure values of nine major sensors and the remaining 90 sensors in a Pedar-X system were used as input and output for the model, respectively. The performance of the proposed LSTM structure was compared with that of a traditionally used adaptive neuro-fuzzy interference system (ANFIS). A low-cost insole system consisting of a small number of pressure sensors was fabricated. A gait experiment was additionally performed with five young and five older adults, excluding subjects who were used to construct models. The Pedar-X system placed parallelly on top of the insole prototype developed in this study was in anti-skid socks. Sensor values from a low-cost insole prototype were used as input of the LSTM model. The accuracy of the model was evaluated by applying a leave-one-out cross-validation. Results Correlation coefficient and relative root mean square error (RMSE) of the LSTM model were 0.98 (0.92 ~ 0.99) and 7.9 ± 2.3%, respectively, higher than those of the ANFIS model. Additionally, the usefulness of the proposed LSTM model for fabricating a low-cost insole prototype with a small number of sensors was confirmed, showing a correlation coefficient of 0.63 to 0.97 and a relative RMSE of 12.7 ± 7.4%. Conclusions This model can be used as an algorithm to develop a low-cost portable smart insole system to monitor age-related physiological and anatomical alterations in foot. This model has the potential to evaluate clinical rehabilitation status of patients with pathological gait, falling, and various foot pathologies when more data of patients with various diseases are accumulated for training.


2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Yasemin Al Shanableh ◽  
Yehia Y. Hussein ◽  
Abdul Haseeb Saidwali ◽  
Maryam Al-Mohannadi ◽  
Budoor Aljalham ◽  
...  

Abstract Aim The aim of this study is to investigate the prevalence of asymptomatic hyperuricemia in Qatar and to examine its association with changes in markers of dyslipidemia, prediabetes and subclinical inflammation. Methods A cross-sectional study of young adult participants aged 18 - 40 years old devoid of comorbidities collected between 2012 and 2017. Exposure was defined as uric acid level, and outcomes were defined as levels of different blood markers. De-identified data were collected from Qatar Biobank. T-tests, correlation tests and multiple linear regression were all used to investigate the effects of hyperuricemia on blood markers. Statistical analyses were conducted using STATA 16. Results The prevalence of asymptomatic hyperuricemia is 21.2% among young adults in Qatar. Differences between hyperuricemic and normouricemic groups were observed using multiple linear regression analysis and found to be statistically and clinically significant after adjusting for age, gender, BMI, smoking and exercise. Significant associations were found between uric acid level and HDL-c p = 0.019 (correlation coefficient -0.07 (95% CI [-0.14, -0.01]); c-peptide p = 0.018 (correlation coefficient 0.38 (95% CI [0.06, 0.69]) and monocyte to HDL ratio (MHR) p = 0.026 (correlation coefficient 0.47 (95% CI [0.06, 0.89]). Conclusions Asymptomatic hyperuricemia is prevalent among young adults and associated with markers of prediabetes, dyslipidemia, and subclinical inflammation.


2022 ◽  
Vol 6 (2) ◽  
pp. 41
Author(s):  
Mamluatul Maghfiroh ◽  
Rachma Indrarini

The development of the Indonesian cosmetic industry is relatively rapid because cosmetic products have become primary needs in Indonesia which the population is predominantly Muslim. This development caused competitive competition between cosmetics brands in Indonesia. Because of this competition, Wardah cosmetics is considering the halal label in its products and the quality of the products to increase consumer purchasing decisions. This research uses quantitative, associative methods to investigate the relationship between halal brands and product quality with the purchasing decision of Wardah cosmetics, especially in Surabaya. The number of samples used is 100 Muslim respondents who used Wardah cosmetics products in Surabaya. The data analysis technique used is multiple correlation coefficient analysis using SPSS version 25. The study results showed that halal labeling and product quality simultaneously had a significant and robust relationship with the purchasing decision of Wardah cosmetic products. While partially, the halal labels and product quality had a moderate and meaningful relationship with the purchase decision of Wardah cosmetics products.


Author(s):  
Patrick Altmann ◽  
Dominik Ivkic ◽  
Markus Ponleitner ◽  
Fritz Leutmezer ◽  
Ulrike Willinger ◽  
...  

Telehealth is a growing domain with particular relevance for remote patient monitoring. With respect to the biopsychosocial model of health, it is important to evaluate perception and satisfaction with new methods in telehealth as part of an integrative approach. The Telemedicine Perception Questionnaire (TMPQ) is a 17-item questionnaire measuring patients’ perception of and satisfaction with telecare. We translated this survey into German and determined its validity and reliability in 32 adolescents and adults. Furthermore, we derived a short version of the TMPQ, named Patient and Physician Satisfaction with Monitoring (PPSM), which is a 5-item questionnaire that can be administered to both patients and physicians. Validity and reliability were tested in 32 patients and 32 physicians. Crohnbach’s α for the translated TMPQ was 0.76, and the German version yielded high validity (intraclass correlation coefficient (ICC) 0.995). We tested the PPSM in both patients and physicians and found acceptable values for Crohnbach’s α (0.72 and 0.78) with excellent validity (ICC 0.965). We therefore concluded from this small study that both German versions of the TMPQ and PPSM can be used to investigate the acceptance of telehealth applications.


PLoS ONE ◽  
2022 ◽  
Vol 17 (1) ◽  
pp. e0262486
Author(s):  
Supatcharin Kemarat ◽  
Apiluk Theanthong ◽  
Wichai Yeemin ◽  
Sutima Suwankan

The purposes of this study were to investigate differences in personality and competitive anxiety depending on types of sports and gender, and to determine the influence of personality on competitive anxiety. Participants included 237 athletes (134 men and 103 women) who participated in the Thailand University Games, 2020. They were classified as individual (n = 114) and team (n = 123) athletes. Personality characteristics and competitive anxiety were assessed by using NEO five-factor inventory and sport competitive anxiety test. Differences between individual and team athletes and between gender were tested by using independent t-test. Relationships between personality and competitive anxiety were analyzed by using Pearson product-moment correlation coefficient. Moreover, multiple regression analysis was used to measure the contributions of personality on competitive anxiety. The results showed that competitive anxiety was significant difference between individual and team athletes (p = 0.03, d = 0.28). However, there was no difference in personality between groups. When compared between gender, there were significant differences in competitive anxiety (p < 0.001, d = 0.52) and the agreeableness (p = 0.04, d = -0.26) component of personality between female and male athletes. From the correlation analyzes, four characteristics of personality showed significant associations with competitive anxiety including neuroticism (r = -0.472, ρ < 0.001), extraversion (r = 0.184, ρ = 0.005), agreeableness (r = 0.147, ρ = 0.024), and conscientiousness (r = 0.202, ρ = 0.002). Among five personality factors, the neuroticism had minimally negative effect on competitive anxiety (β = -0.52) with percentage of prediction of 22%. These can be concluded that types of sport and gender are the important factors affecting personality and competitive anxiety. The athletes with certain personality traits were more susceptible to competitive anxiety. Importantly, the neuroticism could serve as a prediction of the competitive anxiety in all collegiate athletes.


2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Thijs Beckers ◽  
Bauke Koekkoek ◽  
Giel Hutschemaekers ◽  
Bridey Rudd ◽  
Bea Tiemens

Abstract Background Measuring progress in treatment is essential for systematic evaluation by service users and their care providers. In low-intensity community mental healthcare, a questionnaire to measure progress in treatment should be aimed at personal recovery and should require little effort to complete. Methods The Individual Recovery Outcome Counter (I.ROC) was translated from English into Dutch, and psychometric evaluations were performed. Data were collected on personal recovery (Recovery Assessment Scale), quality of life (Manchester Short Assessment of Quality of Life), and symptoms of mental illness and social functioning (Outcome Questionnaire, OQ-45) for assessing the validity of the I.ROC. Test–retest reliability was evaluated by calculating the Intraclass Correlation Coefficient and internal consistency was evaluated by calculating Cronbach’s alpha. Exploratory factor analysis was performed to determine construct validity. To assess convergent validity, the I.ROC was compared to relevant questionnaires by calculating Pearson correlation coefficients. To evaluate discriminant validity, I.ROC scores of certain subgroups were compared using either a t-test or analysis of variance. Results There were 764 participants in this study who mostly completed more than one I.ROC (total n = 2,863). The I.ROC aimed to measure the concept of personal recovery as a whole, which was confirmed by a factor analysis. The test–retest reliability was satisfactory (Intraclass Correlation Coefficient is 0.856), as were the internal consistency (Cronbachs Alpha is 0.921) and the convergent validity. Sensitivity to change was small, but comparable to that of the OQ-45. Conclusions The Dutch version of the I.ROC appears to have satisfactory psychometric properties to warrant its use in daily practice. Discriminant validity and sensitivity to change need further research.


2022 ◽  
Author(s):  
Iyobosa Timothy Asowata ◽  
A.L. Adisa

Abstract Trace elements (TE) concentrations of subsoil and the underlying parent rocks of Labunwa – Odele area were determined in other to ascertain the enrichment level, distribution and sources of these TEs in the subsoil in the study area. Twenty-one (21) subsoil (at depth of 30 -100 cm) and thirteen (13) rock samples were collected, pulverised and digested using aqua regia for soil samples and near total digestion of HClO4, HF, HCl and HNO3of different proportions for the rocks. The samples were analysed using Inductively Coupled Plasma- Mass Spectrometry, (ICP-MS). The mean TE concentrations in ppm for subsoil showed Cu (40.0), Pb, (24.2), Zn (56.3), As (0.9) and U (2.7) among other elements as against the mean concentrations of granite gneiss (GGN) with Cu (22.9), Pb (61.4), Zn (64.6), As (1.0), U (2.6) and Pegmatite, (PGM) Cu(128.4), Pb(17.0), Zn(108.8), As (1.1), U (1.3) among other TEs. The relatively low concentrations of the TEs in the subsoil compared to the underlying parent rocks suggests that TEs in the subsoil may have been influenced by geogenic factors, such as weathering of the underlying rocks. TEs source apportionments in the subsoil using Bivariant plots, correlation coefficient, Bi-polar and dendogram analyses showed that these TEs are essentially from the underlying GGN and PGM in the area. Pollution status indices, I-geo, Contamination factor and PLI showed that the study area is practically unpolluted. This suggests that locations with relatively higher concentrations of some TEs are probably due to mineralisation and since most of the subsoil TEs are significantly lower in concentrations compared to the underlying bedrock, the area is safe for agricultural activities.


2022 ◽  
Vol 2022 ◽  
pp. 1-6
Author(s):  
Santosh R. Patil ◽  
G. Maragathavalli ◽  
D. N. S. V. Ramesh ◽  
Giridhar S. Naidu ◽  
Mohammad Khursheed Alam ◽  
...  

Objective. To test the inter- and intraexaminer reliability of a recently developed instrument for measuring the maximum bite force (MBF). Material and Methods. Sixty patients who were clinically confirmed as having Oral Submucous Fibrosis (OSMF) and 60 healthy controls were included in this study. For each subject, age, gender, weight, height, and body mass index (BMI) were recorded. The maximum bite force was recorded in alternate order with a bite force sensor (D1) and an occlusal force meter (D2). Bite force was measured in the first molar region. Pearson’s correlation coefficient and kappa statistic were applied to assess the reliability between D1 and D2 in the assessment of maximum bite force. The independent t -test was performed to find the statistical significance between the two study groups. The paired t -test was applied to find out the difference between the right and left disease in groups of two devices separately. The one-way analysis of covariance (ANOVA) was performed to find the significant difference between grades of OSMF. Results. The results of the kappa values were 0.8531 ± 0.0724 and 0.7336 ± 0.0737 for interdevice reliability in OSMF patients in right and left sides. Similar findings were obtained in right and left sides of healthy individuals ( 0.7549 ± 0.0816 and 0.9440 ± 0.0806 ) and in the total sample ( 0.8132 ± 0.0544 and 0.8303 ± 0.0538 ). Pearson’s correlation coefficient between two devices revealed a high and significant positive correlation between D1 and D2 separately and in the whole sample. Conclusion. The observations of the present study suggest that the bite force sensor can be used as a reliable device for measuring bite force.


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