Reliability of trawl surveys on cod in Norwegian fjords

Abstract Lunde, T. M., Godø, O. R., and Rosland, R. 2008. Reliability of trawl surveys on cod in Norwegian fjords. – ICES Journal of Marine Science, 65: 937–945. According to ICES, the International Council for the Exploration of the Sea, populations of coastal cod (CC) in Norway north of 62°N have been declining since 1994. The estimates are based on analytical assessment in which the most recent estimates are tuned with survey information. We evaluate the quality of bottom-trawl surveys conducted in four North Norwegian fjords during autumn of the years 1995–2004. Surveys tended to be carried out later in autumn in the more recent years than in the earlier years. Consequently, there was a significant decrease in sun's altitude from 1995 to 2004 at the time the surveys were carried out. Further inconsistency among years dominated when comparing catch per unit effort (cpue) by year class and age over time. Often, the observed cpue at age a + 1 in year y + 1 was greater than in year y at age a. Spearman’s rank correlation of cpue vs. year also demonstrated inconsistencies in the data. The problems related to separating CC and northeast Arctic cod are discussed.

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Motivation Mechanism for Stimulating the Labor Potential

Research in World Economy ◽

10.5430/rwe.v11n4p53 ◽

2020 ◽

Vol 11 (4) ◽

pp. 53

Author(s):

Iryna Koshkalda ◽

Oleksandr Kniaz ◽

Alona Ryasnyanska ◽

Viktoriya Velieva

Keyword(s):

Work Experience ◽

Rank Correlation ◽

Employee Motivation ◽

Pairwise Comparisons ◽

Motivation Mechanism ◽

Quality Of Work ◽

Spearman’S Rank Correlation ◽

Determining Factor ◽

Labor Potential

The issue of motivating the labor personnel to work effectively has been studied. The views of the world scientific community on employee motivation have been analyzed. Motivation has been proved as a determining factor in ensuring the efficient and coordinated work of employees. The hypothesis has been put forward concerning the influence of such aspects of the labor activity as advanced training, a level of responsibility, work experience, promptness, quality of work, and labor intensity on the labor potential motivation. The degree of influence of these aspects of work is determined based on the method of pairwise comparisons. The reliability of the calculations was proved by determining the consistency of experts’ opinions based on Spearman's rank correlation methodology.

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Validation of the French version of the Wisconsin Quality of Life (WISQOL) questionnaire for patients with urolithiasis

Canadian Urological Association Journal ◽

10.5489/cuaj.6552 ◽

2020 ◽

Vol 15 (4) ◽

Author(s):

Naeem Bhojani ◽

Ghizlane Moussaoui ◽

David-Dan Nguyen ◽

Mei Juan Trudel ◽

Garo-Shant Topouzian ◽

...

Keyword(s):

Quality Of Life ◽

Internal Consistency ◽

Tertiary Care ◽

Rank Correlation ◽

French Version ◽

Spearman’S Rank Correlation ◽

Significant Difference ◽

Back Translation ◽

One Way Anova

Introduction: The Wisconsin Stone Quality of Life (WISQOL) questionnaire has been recently developed to objectively assess QOL in patients with urolithiasis. However, French version of the questionnaire was lacking. Therefore, the aim of the present study was to develop and validate the French version of this tool. Methods: The French version of the WISQOL (F-WISQOL) was developed in a multi-step process involving primary translation, back-translation and pilot testing amongst a group of patients (n=12). Urolithiasis patients from two tertiary care institutions were recruited into this study and completed 3 questionnaires: Perceived Stress Scale-10, medical history form and either the WISQOL or F-WISQOL. Internal consistency was assessed using Cronbach’s α and inter-domain associations were evaluated using Spearman’s rank correlation (r). One-way ANOVA was used to compare scores from the two groups (WISQOL and F-WISQOL). Results: A total of 210 patients were enrolled in this study; 68 in the WISQOL group and 148 in the F-WISQOL group. Internal consistency was high for all domains in both groups (F-WISQOL: 0.924-0.970; WISQOL: 0.888-0.965). No statistically significant difference was found between the two groups’ scores. Inter-domain association, measured by Spearman correlation, was moderate to very strong between all of the domains in the F-WISQOL. Values ranged from r=0.676-0.915, with acceptable correlation between D1, D2 and D3, but weaker correlation between D4 (vitality) and the 3 other domains r=0.676-0.729. Conclusions: In the present study, the French version of the WISQOL questionnaire (F-WISQOL) was validated at two academic institutions.

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Indirect and direct standardization for evaluating transplant centers

Journal of Hospital Administration ◽

10.5430/jha.v8n1p9 ◽

2018 ◽

Vol 8 (1) ◽

pp. 9

Author(s):

Kevin He

Keyword(s):

Patient Outcomes ◽

Rank Correlation ◽

Care Patient ◽

Multivariate Logistic Regression Model ◽

Medical Providers ◽

Ongoing Debate ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

Direct Standardization

To assess the quality of health care, patient outcomes associated with medical providers are routinely monitored in order to identify poor (or excellent) provider performance. To avoid confounding by risk factors, both indirect and direct standardization have been used for comparing outcome rates or prevalence for different providers. There has been an ongoing debate as to which standardization method is more appropriate. To compare the performance of indirect and direct standardization for the purpose of ranking transplant centers, we analyzed post-transplant mortality using the national kidney transplant data. Included in our analysis were 116,601 patients (from 230 transplant centers) who underwent kidney transplantation between January 2006 and December 2012. Multivariate logistic regression model was used to model the 30-day mortality, which were estimates of failures (grant failure or death) in the 30 days after the transplant surgery. Concordance indexes, kappa coefficients and Spearman’s rank correlation coefficient were computed. The estimated values from these statistics for the indirect standardized method were similar to the direct standardization. The results suggest that both indirect and direct standardized methods provide similar ability to distinguish center effects.

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Activity Recommendation Model Using Rank Correlation for Chronic Stress Management

Applied Sciences ◽

10.3390/app9204284 ◽

2019 ◽

Vol 9 (20) ◽

pp. 4284 ◽

Cited By ~ 5

Author(s):

Ji-Soo Kang ◽

Dong-Hoon Shin ◽

Ji-Won Baek ◽

Kyungyong Chung

Keyword(s):

Stress Management ◽

Correlation Coefficient ◽

Chronic Stress ◽

Rank Correlation ◽

Korean People ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

Proposed Model ◽

Basic Rank

Korean people are exposed to stress due to the constant competitive structure caused by rapid industrialization. As a result, there is a need for ways that can effectively manage stress and help improve quality of life. Therefore, this study proposes an activity recommendation model using rank correlation for chronic stress management. Using Spearman’s rank correlation coefficient, the proposed model finds the correlations between users’ Positive Activity for Stress Management (PASM), Negative Activity for Stress Management (NASM), and Perceived Stress Scale (PSS). Spearman’s rank correlation coefficient improves the accuracy of recommendations by putting a basic rank value in a missing value to solve the sparsity problem and cold-start problem. For the performance evaluation of the proposed model, F-measure is applied using the average precision and recall after five times of recommendations for 20 users. As a result, the proposed method has better performance than other models, since it recommends activities with the use of the correlation between PASM and NASM. The proposed activity recommendation model for stress management makes it possible to manage user’s stress effectively by lowering the user’s PSS using correlation.

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The quality of the sperm of red breeds bulls of OAO Barnaulskoe breeding enterprise and its resistance to cryopreservation

Bulletin of NSAU (Novosibirsk State Agrarian University) ◽

10.31677/2072-6724-2021-58-1-92-100 ◽

2021 ◽

pp. 92-100

Author(s):

A. I. Zheltikov ◽

T. V. Konovalova ◽

O. I. Sebezhko ◽

V. V. Ilyin ◽

P. N. Palchikov ◽

...

Keyword(s):

Heavy Metals ◽

Correlation Coefficient ◽

Rank Correlation ◽

Preliminary Assessment ◽

Breeding Programs ◽

Research Results ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

Selection Of

The characteristic of bulls-producers of red breeds of OAO Barnaulskoe breeding enterprise on the quality of sperm and its resistance to cryopreservation are presented. The breeding enterprise has examined samples of water, soil, feed for the content of heavy metals. In the studied samples, no excess of the LOC was found. The research results were processed on a PC using population statistics methods. Angler bulls produced the largest amount of ejaculates unsuitable for cryopreservation. It is 20.6%. According to this indicator, they surpassed the producers of red Danish and red steppe breeds by 4.1-7.8%. The animals of the latter breed showed the smallest amount (1.7%) of ejaculates rejected after defrost. In Angler bulls, this indicator was 5.95%, in red Danish bulls it was 2.95%, which is 3.52 and 1.75 times higher than in red steppe breeders (P <0.01-0.001). Significant differences were established between individual bulls of the red steppe breed in the number of ejaculates rejected before cryopreservation (2.84-22.29%) and after defrost (0-7.09%). The differences between breeds in the frequency of rejected ejaculates before freezing and after cryopreservation indicate a certain role of heredity in the resistance of animals for these indicators. Spearman’s rank correlation coefficient between these traits was 0.312. It indicates the possibility of preliminary assessment and selection of bulls according to the first indicator. But the final assessment of the bull-producers can be made by the frequency of rejected ejaculates after thawing. We propose to consider the issue of additional accounting in breeding programs for the resistance of the seed of bulls-producers to cryopreservation.

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The impact of the quality of life perception on the self-esteem of physically active adults

Acta Scientiarum Health Sciences ◽

10.4025/actascihealthsci.v39i1.31967 ◽

2017 ◽

Vol 39 (1) ◽

pp. 51

Author(s):

Daniel Vicentini de Oliveira ◽

José Roberto Andrade do Nascimento Júnior ◽

Renan Codonhato ◽

Thayna Da Silva Zamboni ◽

Adriele Tarini dos Santos ◽

...

Keyword(s):

Quality Of Life ◽

Rank Correlation ◽

Self Esteem ◽

The Self ◽

Physically Active ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient ◽

The Impact ◽

Active Adults

This study aimed at investigating the impact of the quality of life perception on the self-esteem of physically active adults. A total of 63 male and female swimming practitioners (38.13 ± 11.72) were evaluated. A socio-demographic questionnaire, WHOQOL-Bref Scale, and the Rosenberg Self-Esteem Scale were used as tools. For data analysis the descriptive statistics, Kolmogorov-Smirnov Test, Mann-Whitney U Test, Spearman’s Rank Correlation Coefficient, and the Univariate Multiple Regression were used. No significant differences were found either for the quality of life or the self-esteem between sexes; there was a significant positive correlation (p < 0.05) among the physical (r = 0.37), psychological (r = 0.36) and environmental (r = 0.30) domains with self-esteem. The regression model explained 20% of the self-esteem variability, with moderate and significant pathways of the physical (β = 0.23) and psychological (β = 0.23) domains, whereas the environmental domain did not show a significant predictive relation (p = 0.988) with self-esteem. It is concluded that a higher quality of life perception may result in a higher self-esteem for physically active adults.

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The Correlation between Hearing Loss and the Quality of Life of Workers Exposed to the Noise in the Textile Industry

Jurnal Kesehatan Masyarakat ◽

10.15294/kemas.v15i1.18124 ◽

2019 ◽

Vol 15 (1) ◽

pp. 81-88

Author(s):

Sumardiyono Sumardiyono ◽

Reni Wijayanti ◽

Hartono Hartono ◽

Ari Probandari

Keyword(s):

Quality Of Life ◽

Hearing Loss ◽

Textile Industry ◽

Bodily Pain ◽

Rank Correlation ◽

Cross Sectional Survey ◽

Cross Sectional ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient

Noise is a stressor for hearing loss among workers. Unfortunately, hearing loss also affect worker’s quality of life. This study aimed to investigate the correlation between hearing loss and quality of life among workers in textile industry. The study design was a cross-sectional survey. The study population were 200 workers exposed to the noisy textile industry. The data were analyzed using Spearman's rank correlation coefficient. The findings showed a significant relationship between hearing loss and the quality of life of the workers (rs=-0.698; p=0.000). The dimensions of quality of life associated with hearing loss were the Physical Functioning (rs=-0.493; p=0.000), Role-Physical (rs=-0.501; p=0.000), Bodily Pain (rs=-0.516; p=0.000), General Health (rs=-0.497; p=0.000), Vitality (rs=-0.527; p=0.000), Social Functioning (rs=-0.521; p=0.000), Role-Emotional (rs=-0.521; p=0.000), and Mental Health (rs=-0.517; p=0.000). This study concludes that hearing loss decreases the quality of life among workers exposed to the noise of the textile industry.

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Using interpolation and correlation to evaluate the quality of cement composites exposed to a thermally aggressive environment

Vestnik MGSU ◽

10.22227/1997-0935.2021.11.1473-1482 ◽

2021 ◽

pp. 1473-1482

Author(s):

Irina N. Maksimova ◽

Irina V. Erofeeva ◽

Victor V. Afonin ◽

Denis V. Emelyanov

Keyword(s):

Quality Evaluation ◽

Rank Correlation ◽

Operating Conditions ◽

Atmospheric Environment ◽

Coefficient Of Determination ◽

Cement Composites ◽

Spearman’S Rank Correlation ◽

Negative Temperatures ◽

Cyclic Changes

Introduction. The article addresses the quality evaluation of cement composites after their exposure to the atmospheric environment that features a rapid change in positive and negative temperatures. The article has a numerical assessment of the quality of cement composites. The quality assessment method encompasses the Spearman’s rank correlation, the coefficient of determination, and the adjustment ratio. Materials and methods. Testable cement composites are the compositions numbered from one to eight. They differ in the concentration of various additives, including superplasticizers and aggregates. Testable compositions were exposed to cyclic changes in positive and negative temperatures, and four of their properties were checked in the points of control on Day 0, Day 15, and Day 45. Linear interpolation was used to expand the data array. Changes in the properties of composites were compared with the benchmark values; the Spearman’s rank correlation and the coefficient of determination were calculated. Moreover, arrays of interpolated values were reduced to relative units to calculate the adjustment ratios. Entry values were employed to develop the evaluation metrics and assess the quality of cement composites. Results. The proposed numerical metrics is used to rank the testable samples and identify the best compositions. Library functions and transformations, available in the MATLAB system, are applied to each action, which can be implemented in nearly any software programming language. Conclusions. The proposed method of heuristic quality evaluation of cement composites may be applied to the cases when testable samples are exposed to versatile adverse and aggressive operating conditions.

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ПРОЦЕСНЕ УПРАВЛІННЯ ЕФЕКТИВНІСТЮ СТРАТЕГІЇ ВИЩОГО НАВЧАЛЬНОГО ЗАКЛАДУ

RADIOELECTRONIC AND COMPUTER SYSTEMS ◽

10.32620/reks.2018.1.07 ◽

2018 ◽

pp. 54-62

Author(s):

Ірина Миколаївна Кадикова ◽

Світлана Олександрівна Ларіна ◽

Ігор Володимирович Чумаченко

Keyword(s):

Higher Education ◽

Time Lag ◽

Rank Correlation ◽

Strategic Plan ◽

Process Approach ◽

Successful Implementation ◽

Growth Trend ◽

Spearman’S Rank Correlation ◽

Spearman’S Rank Correlation Coefficient

The requirements to the quality of higher education in Ukraine and in the world are rising. This means that the quality of strategic management of HEIs is a guarantee of successful implementation of the state reform of higher education in Ukraine. In this conditions, there is no doubt that the adjustment of the universities’ strategies is inevitable if they are going to adapt to new challenges. The article is devoted to the evaluation from the process approach of the management of effectiveness of the university's strategy as a project-oriented organization. the matrix "competitive position / growth trend" for the universities of the Kharkiv region in 2017 was constructed. A comparative assessment of the activities of universities of the Kharkiv region in 2017 has been carried out for three components: quality of scientific and pedagogical potential; quality of training; international recognition. The paper investigates the hypothesis of a connection between the position in the official rating of universities and the quality of its strategic plan. The data of the Consolidated rating of Ukrainian universities and the rating of CEDOS for 2015-1017 are used. Correlation connection with time lag between these indicators is proved. The rank correlation increases with the increase of the time lag (in this paper the range of the time lag {0; 1; 2} was investigated, due to the availability of empirical data). The research evaluated the degree of correlation of the observed phenomena (the content of the strategic plan and the university’s position in the rating) by Spearman’s rank correlation coefficient. The colligation of the studied factors was assessed applying the Chaddock’s scale. The results of the correlation analysis of the relationship between the group of indicators "The main management processes of the university" and the group of calculated indicators in the structure of the indicator "Content of the strategic plan" confirmed the correctness of the using the rating methodology by the CEDOS Center. The authors conclude that the management of an organization such as a university is advantageously carried out from the standpoint of the process approach

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Relationship of frequency and severity of perimenopausal symptoms on the quality of sexual life of postmenopausal women living in urban and rural areas

HIGHER SCHOOL’S PULSE ◽

10.5604/01.3001.0014.6555 ◽

2021 ◽

Vol 14 (SUPPLEMENT 1) ◽

pp. 1-7

Author(s):

Grażyna Stadnicka

Keyword(s):

Rural Women ◽

Rural Areas ◽

Rank Correlation ◽

Urban Women ◽

Sexual Life ◽

Average Score ◽

Spearman’S Rank Correlation ◽

Significant Difference ◽

Perimenopausal Symptoms

Background: The changes that occur in a woman’s body during the perimenopausal period may influence feelings of attractiveness and perception of status in an intimate relationship, which may play a role in overall sexual satisfaction. Aim of the study: The present study aimed to analyze the influence of selected perimenopausal symptoms on the perception of satisfaction with sexual life in urban and rural women. Material and methods: This study included 224 women from urban areas and 106 women from rural areas who were using general practice services. Inclusion criteria were women who had not menstruated for 2–5 years. The measures used were the Menopause Rating Scale (MRS) and the Sexual Quality of Life-Female questionnaire (SQoL-F). Spearman’s rank correlation coefficient was used to assess the relationship between the severity of perimenopausal symptoms and satisfaction with sexual life. Results: A greater proportion of urban women reported symptoms in the perimenopausal period than rural women. Statistically significant correlations were observed for irritability (P = 0.03) and sexual problems (P = 0.01). However, rural women reported a greater degree of symptom severity. There was a statistically significant difference in severity of somatic and psychological symptoms between urban and rural women. In urban women, the average score for general satisfaction with their sexual life was 62 ± 19.96, whereas the average score for rural women was slightly less, 59 ± 23.56. A statistically significant inverse relationship was observed between the severity of perimenopausal symptoms and quality of sexual life, with values of Spearman’s rank correlation coefficients ranging from −0.490 to −0.064. Conclusions: Urban or rural residence had a slight influence on the frequency and severity of perimenopausal symptoms, and severity of symptoms had a significant influence on women’s satisfaction with their sexual life.

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