scholarly journals Performance Trends in Master Butterfly Swimmers Competing in the FINA World Championships

2017 ◽  
Vol 57 (1) ◽  
pp. 199-211 ◽  
Author(s):  
Beat Knechtle ◽  
Pantelis T. Nikolaidis ◽  
Thomas Rosemann ◽  
Christoph A. Rüst
Keyword(s):  
Sex Differences ◽  
Regression Analysis ◽  
Sex Difference ◽  
Significant Interaction ◽  
Linear Regression Analysis ◽  
Mixed Effects ◽  
Regression Analyses ◽  
Performance Trends ◽  
Improved Performance ◽  
Distance Interaction

AbstractPerformance trends in elite butterfly swimmers are well known, but less information is available regarding master butterfly swimmers. We investigated trends in participation, performance and sex differences in 9,606 female and 13,250 male butterfly race times classified into five-year master groups, from 25-29 to 90-94 years, competing in the FINA World Masters Championships between 1986 and 2014. Trends in participation were analyzed using linear regression analysis. Trends in performance changes were investigated using mixed-effects regression analyses with sex, distance and a calendar year as fixed variables. We also considered interaction effects between sex and distance. Participation increased in master swimmers older than ~30-40 years. The men-to-women ratio remained unchanged across calendar years and master groups, but was lower in 200 m compared to 50 m and 100 m. Men were faster than women from 25-29 to 85-89 years (p < 0.05), although not for 90-94 years. Sex and distance showed a significant interaction in all master groups from 25-29 to 90-94 years for 200m (p < 0.05). For 50 m and 100 m, a significant sex × distance interaction was observed from 25-29 to 75-79 years (p < 0.05), but not in the older groups. In 50 m, women reduced the sex difference in master groups 30-34 to 60-64 years (p < 0.05). In 100 m, women decreased the gap to men in master groups 35-39 to 55-59 years (p < 0.05). In 200 m, the sex difference was reduced in master groups 30-34 to 40-44 years (p < 0.05). In summary, women and men improved performance at all distances, women were not slower compared to men in the master group 90-94 years; moreover, women reduced the gap to men between ~30 and ~60 years, although not in younger or older master groups.

scholarly journals Tower Running—Participation, Performance Trends, and Sex Difference

2020 ◽  
Vol 17 (6) ◽  
pp. 1902 ◽  
Author(s):  
Daniel Stark ◽  
Stefania Di Gangi ◽  
Caio Victor Sousa ◽  
Pantelis Nikolaidis ◽  
Beat Knechtle
Keyword(s):  
Sex Differences ◽  
Statistical Model ◽  
Sex Difference ◽  
Random Effects ◽  
Age Groups ◽  
Repeated Measurements ◽  
Stair Climbing ◽  
Age Group ◽  
Performance Trends ◽  
The Difference

Though there are exhaustive data about participation, performance trends, and sex differences in performance in different running disciplines and races, no study has analyzed these trends in stair climbing and tower running. The aim of the present study was therefore to investigate these trends in tower running. The data, consisting of 28,203 observations from 24,007 climbers between 2014 and 2019, were analyzed. The effects of sex and age, together with the tower characteristics (i.e., stairs and floors), were examined through a multivariable statistical model with random effects on intercept, at climber’s level, accounting for repeated measurements. Men were faster than women in each age group (p < 0.001 for ages ≤69 years, p = 0.003 for ages > 69 years), and the difference in performance stayed around 0.20 km/h, with a minimum of 0.17 at the oldest age. However, women were able to outperform men in specific situations: (i) in smaller buildings (<600 stairs), for ages between 30 and 59 years and >69 years; (ii) in higher buildings (>2200 stairs), for age groups <20 years and 60–69 years; and (iii) in buildings with 1600–2200 stairs, for ages >69 years. In summary, men were faster than women in this specific running discipline; however, women were able to outperform men in very specific situations (i.e., specific age groups and specific numbers of stairs).

The alternative negative constructions in spoken and written Korean: Logistic regression analysis

2019 ◽  
Vol 15 (2) ◽  
pp. 419-442
Author(s):  
Beom-mo Kang
Keyword(s):  
Logistic Regression ◽  
Regression Analysis ◽  
Logistic Regression Analysis ◽  
Mixed Effects ◽  
Written Language ◽  
Regression Analyses ◽  
Relevant Factor ◽  
Factors Influencing ◽  
Frequency Of Use ◽  
Relevant Factors

AbstractAdopting quantitative corpus-based methods, this paper focuses on the alternative negative constructions in Korean, [anV] and [Vanhda]. Logistic regression analyses for a mixed-effects model were carried out on data drawn from the Sejong Korean Corpus. Certain features of the verb or adjective in negative constructions significantly affect the use of the two negative constructions. A relevant factor is register/medium (spoken or written), among other significant interactions of factors. Furthermore, the fact that frequency is consistent with other relevant factors, together with certain diachronic facts of Korean, supports the claim that frequency of use plays an important role in linguistic changes. Another finding is that, notwithstanding noticeable differences between spoken and written language, the factors influencing the use of the two negative constructions in Korean are largely similar in the spoken and written registers.

scholarly journals Employee performance in Bappeda Palembang as perceived through interpersonal communication and work environment

2021 ◽  
Vol 7 (1) ◽  
pp. 147
Author(s):  
Yasir Arafat ◽  
Tri Darmawati ◽  
Harridlil Mukminin
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Work Environment ◽  
Interpersonal Communication ◽  
Employee Performance ◽  
Linear Regression Analysis ◽  
Regression Analyses ◽  
Simple Linear Regression ◽  
Simple Linear Regression Analysis

The purpose of this study was to determine the effect of interpersonal communication and the work environment on employee performance in Bappeda Palembang. The sample was 40 employees in Bappeda  Palembang. The survey for this study is based on 40 workers as respondents. Data were gathered and organized into a list of questions. The spss for Windows version 22 was used to analyze the outcomes using simple linear regression analysis, multiple linear regression analyses, t-tests, and f-tests. The interpersonal communication has a partially negative and insignificant effect on employee performance, work environment has a positive and significant effect on employee performance. Furthermore, obtained interpersonal communication as well as the workplace environment have a significant impact on employee performance.

scholarly journals Pengaruh Pengawasan Dan Sanksi PerpajakanTerhadap Kesadaran Wajib Pajak Pasca Program Tax Amnesty

2020 ◽  
Vol 1 (1) ◽  
pp. 41-55
Author(s):  
Mustadir Mustadir ◽  
Basri Modding ◽  
Mursalim Mursalim
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Multiple Linear Regression ◽  
Research Methods ◽  
Descriptive Analysis ◽  
Linear Regression Analysis ◽  
Total Sample ◽  
Regression Analyses ◽  
The West ◽  
Tax Amnesty

Penelitian ini dilakukan dengan tujuan: (1) Untuk mengetahui dan menganalisis pengaruh Pengawasan terhadap Kesadaran Wajib Pajak Pasca Tax Amnesty pada Kantor Pelayanan Pajak Pratama Makassar Barat. (2) Untuk menganalisis pengaruh Sanksi Perpajakan terhadap Kesadaran Wajib Pajak Pasca Tax Amnesty pada Kantor Pelayanan Pajak Pratama Makassar Barat. Metode penelitian yang digunakan dalam penelitian ini adalah Analisis deskriptif dan analisis Regresi Linier Berganda dengan jumlah sampel sebanyak 50 responden. Berdasarkan hasil analisis regresi linier berganda, maka Hasil penelitian menunjukkan bahwa (1). Pengawasan Berpengaruh positif dan signifikan terhadap Kesadaran wajib pajak Pasca Tax Amnesty Pada Kantor KPP Pratama Makassar Barat. (2). Sanksi Perpajakan Berpengaruh positif dan signifikan terhadap Kesadaran wajib pajak Pasca Tax Amnesty Pada KPP Pratama Makassar Barat. This research is conducted with the purpose of: (1) to know and analyze the effect of supervision on the taxpayer awareness post Tax Amnesty at the West Makassar Primary Tax Service office. (2) To analyse the influence of taxation sanctions on post-taxpayer awareness of tax Amnesty at the West Makassar Primary Tax Service office. The research methods used in this study are descriptive analysis and double linear regression analysis with a total sample of 50 respondents. Based on the results of multiple linear regression analyses, the results showed that (1). Supervision of positive and significant impact on the taxpayer awareness post Tax Amnesty at KPP Pratama's West Makassar office. (2). Taxation sanctions positive and significant impact on the taxpayer awareness post Tax Amnesty at KPP Pratama Makassar West.

scholarly journals Maternal pre-pregnancy weight and twins’ temperament

2019 ◽  
Vol 10 (5) ◽  
pp. 522-528
Author(s):  
Elena C. Tore ◽  
Evangelia E. Antoniou ◽  
Keith Reed ◽  
Taunton R. Southwood ◽  
Luc Smits ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Regression Analysis ◽  
Linear Regression Analysis ◽  
Behavioral Development ◽  
Mixed Effects ◽  
Activity Level ◽  
Infant Behavior ◽  
Number Of Factors ◽  
Pregnancy Weight ◽  
The Relationship

AbstractMaternal pre-pregnancy weight has been related with young singletons’ cognitive and behavioral development, but it is not clear if it has an effect on temperament. We used a twin cohort to evaluate the association between maternal pre-pregnancy body mass index (BMI) and infants’ temperament. The mothers of 834 twins answered questions regarding their pre-pregnancy BMI and their 0- to 18-month-old children’s temperament using the Revised Infant Behavior Questionnaire. Three temperamental dimensions were examined: activity level, distress to limitation and duration of orienting. The relationship between maternal pre-pregnancy BMI and each temperamental component was investigated by means of multilevel mixed-effects linear regression analysis. We found no clear evidence of an association of maternal pre-pregnancy BMI with twins’ temperament. The development of temperament is influenced by a large number of factors, probably different from those influencing children’s emotional and behavioral development.

The Relationship of Compliance with Coping Strategies and Self-Esteem

2003 ◽  
Vol 19 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Gisli H. Gudjonsson ◽  
Jon Fridrik Sigurdsson
Keyword(s):  
Sex Differences ◽  
Coping Strategies ◽  
Multiple Regression ◽  
Sex Difference ◽  
Test Scores ◽  
Self Esteem ◽  
Stressful Situation ◽  
Men And Women ◽  
Relationship Of ◽  
The Relationship

Summary: The Gudjonsson Compliance Scale (GCS), the COPE Scale, and the Rosenberg Self-Esteem Scale were administered to 212 men and 212 women. Multiple regression of the test scores showed that low self-esteem and denial coping were the best predictors of compliance in both men and women. Significant sex differences emerged on all three scales, with women having lower self-esteem than men, being more compliant, and using different coping strategies when confronted with a stressful situation. The sex difference in compliance was mediated by differences in self-esteem between men and women.

Sex Differences in Time Production Revisited

2012 ◽  
Vol 33 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Joseph Glicksohn ◽  
Yamit Hadad
Keyword(s):  
Sex Differences ◽  
Individual Differences ◽  
Sex Difference ◽  
Absolute Error ◽  
Internal Clock ◽  
Target Duration ◽  
Log P ◽  
Men And Women ◽  
Time Production ◽  
T Score

Individual differences in time production should indicate differences in the rate of functioning of an internal clock, assuming the existence of such a clock. And sex differences in time production should reflect a difference in the rate of functioning of that clock between men and women. One way of approaching the data is to compute individual regressions of produced duration (P) on target duration (T), after log transformation, and to derive estimates for the intercept and the slope. One could investigate a sex difference by comparing these estimates for men and women; one could also contrast them by looking at mean log(P). Using such indices, we found a sex difference in time production, female participants having a relatively faster internal clock, making shorter time productions, and having a smaller exponent. The question is whether a sex difference in time production would be found using other methods for analyzing the data: (1) the P/T ratio; (2) an absolute discrepancy (|P-T|) score; and (3) an absolute error (|P-T|/T) score. For the P/T ratio, female participants have a lower mean ratio in comparison to the male participants. In contrast, the |P-T| and |P-T|/T indices seem to be seriously compromised by wide individual differences.

Prevalence and Predictors of Fruit Intake Among Community College Women in the Extended Opportunity Program and Services

2003 ◽  
Vol 1 (1) ◽  
pp. 91-102 ◽  
Author(s):  
Steve E. Shive ◽  
Michelle R. Neyman
Keyword(s):  
Community College ◽  
Weight Loss ◽  
Regression Analysis ◽  
College Women ◽  
Linear Regression Analysis ◽  
Good Health ◽  
Fruit Intake ◽  
Attitudes And Behaviors ◽  
Eating Fruit ◽  
Opportunity Program

This study examined fruit intake among 276 female Extended Opportunity Program and Services (EOPS) community college students. Knowledge, attitudes, and behaviors associated with fruit intake were determined. The attitudes which are potential predictors of daily fruit intake were also examined. Analysis showed that 33% ate fewer than the minimum recommended two daily servings of fruit. Students reported that fruit gave them energy, taste and cost were not barriers to consumption and that it would not be difficult to increase daily fruit consumption. A linear regression analysis revealed that beliefs that eating fruit leads to good health, having a habit of eating fruit, feeling energy, and weight loss accounted for 30% of the variance in fruit intake.

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