scholarly journals Do height and weight play an important role in block and attack efficiency in high-level men's volleyball?

2017 ◽  
Vol 26 (1) ◽  
pp. 64 ◽  
Author(s):  
Raini Stamm ◽  
Meelis Stamm ◽  
Aleksander Jairus ◽  
Reino Toop ◽  
Reeda Tuula ◽  
...  

The research objective was to study the relationships of players’ efficiency in attack and block with their anthropometric characteristics. Data on men’s weight and height and their proficiency in the game were used. The subjects were the members of the Estonian, Italian, French and Croatian national volleyball teams who participated in Pool B of the European Championship. Data are given on men’s height, weight, age, total number of spikes, attack errors, attacks won, efficiency of attack, total number of blocks, block errors, blocks won, and efficiency of block. In addition, the number of points won by men and their positions in the game are given. Minimums, maximums, standard deviations and means were calculated. To find correlations, Pearson’s correlation analysis (p<0.05) was used. In our study, taller and heavier players proved to be more efficient at attack. Comparison of positions showed that middle blockers were taller and performed more blocks, setters were shorter and performed the least of attacks, and outside attackers and opposite attackers were of medium height and carried the greatest load of attack. As a conclusion, it was found that, in professional volleyball, height correlated with the efficiency of attack (r= 0.534; p<0.05), and weight also correlated with the efficiency of attack (r= 0.518; p<0.05). There was no correlation between the anthropometric characteristics and block in volleyball at the professional level in our study. In volleyball, the greatest load at attack is carried by outside attackers and opposite attackers, while middle blockers have the greatest load at block. Setters perform the smallest number of attacks.

2021 ◽  
Vol 7 (1) ◽  
pp. 205521732199485
Author(s):  
Tehila Eilam-Stock ◽  
Michael T Shaw ◽  
Kathleen Sherman ◽  
Lauren B Krupp ◽  
Leigh E Charvet

Background The Symbol Digit Modalities Test (SDMT) is the gold standard for cognitive screening in multiple sclerosis (MS). Objective Due to the recent COVID-19 pandemic and the increased need for virtual clinical visits, we examined the reliability of remote administration of the SDMT vs. standard in-person administration to individuals with MS. Methods Pearson’s correlation analysis was performed between SDMT scores on the in-person and remote administrations. Results For n = 132 participants, remote and in-person SDMT scores were strongly correlated (r = .80, p = .000). Conclusion Remote administration of the SDMT is a reliable cognitive screening approach in MS.


2019 ◽  
Vol 12 (2) ◽  
pp. 1797-1804
Author(s):  
Raza Hussain Lashari ◽  
Abdul Khaliq Alvi

The basic objective of the empirical study is to identify the influence of organizational socialization (OS) and organizational climate (OC) on knowledge management (KM) among the banking sector of Pakistan. The above said sector is selected as population of the current research. By using the simple random sampling technique, different branches of public banks and private banks are selected as a sample. 270 questionnaires were circulated to top level managers and middle level managers. 240 questionnaires were filled by employees and used for analysis. The overall response rate was 89%. Different statistical techniques i.e. Pearson’s correlation analysis, multiple regression analysis and reliability analysis are applied on collected data. The results of Pearson’s correlation analysis shows that there is positive relationship between organizational climate (OC), organizational socialization (OS), knowledge management (KM), its dimensions i.e. knowledge sharing (KS) and knowledge application (KA). Moreover, regression analysis’s results explain that organizational socialization is strong predictor of knowledge management as compare to organizational climate. From the management point of view, the results give clear clue to Pakistan’s banking sector must understand the importance of organizational socialization, organizational climate for the purpose of knowledge management. In future researches, data may be collected to other sectors like telecom industry, textile industry and education sector etc. for more generalizing the results. Moreover, researches some other variables like social interaction, perceived organizational support, and perceived supervisor support may also be conducted.     


2021 ◽  
Vol 12 ◽  
Author(s):  
Cuizhen Zhu ◽  
Mingming Zheng ◽  
Usman Ali ◽  
Qingrong Xia ◽  
Zhongxian Wang ◽  
...  

Increasing evidence indicates an interaction between dysbiosis of the microbiota and the pathogenesis of schizophrenia. However, limited information is available on the specific microbial communities associated with symptoms of schizophrenia. Therefore, this study aimed to investigate gut microbiota dysbiosis and its relationship with psychopathologies in schizophrenia. We recruited 126 participants and divided them into three groups according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, criteria—acute group (patients with acute schizophrenia), remission group (patients with schizophrenia in remission), and control group (healthy controls). Psychotic symptoms were evaluated using the Positive and Negative Syndrome Scale. Microbiota compositions, diversity and community structure were evaluated using 16S rRNA sequencing. Pearson's correlation analysis was used to evaluate the association between bacterial taxa and psychotic symptoms. The beta-diversity of microbiota composition in the acute group was distinct from that in the remission and control groups (PC1 = 21.11% vs. PC2 = 12.86%, P = 0.021). Furthermore, Pearson's correlation analysis revealed that abundance of Haemophilus was positively correlated with negative psychiatric symptoms (r = 0.303, P = 0.021), while abundance of Coprococcus was negatively correlated with negative psychiatric symptoms (r = −0.285, P = 0.025). Moreover, abundance of Haemophilus was positively correlated with cognition (r = 0.428, P = 0.009), excitement (r = 0.266, P = 0.037), and depression (r = 0.295, P = 0.020). The study findings suggest that alterations in certain gut microbiota may interfere with psychological symptoms in schizophrenia. Our results provide evidence that may help in the development of therapeutic strategies using microbial-based targets. The data that support the findings of this study have been deposited in the NCBI (https://submit.ncbi.nlm.nih.gov/) with accession number SUB9453991.


2019 ◽  
Vol 4 (7) ◽  
pp. 168-175
Author(s):  
NUGZAR PAICHADZE ◽  
NATALIA KHARADZE ◽  
NINO PARESASHVILI ◽  
DEA PIRTSKHALAISHVILI

Business career enables human resources to increase qualification opportunities and become recognizable at the same time. In the course of the research, we got interested what kind of attitude towards career issues was in different age groups. What the manner was by which the career of different generation respondents was managed, what the respondents’ attitude is to the career, how they perceive the career management policies implemented by the executives of the organization. The research was conducted in the «Human Potential Management» laboratory at Ivane Javakhishvili Tbilisi State University. 560 respondents participated in the survey. The questionnaire included 32 questions and 125 options for an answer. SPSS statistical software package was used for statistical processing and data analysis. As a result of the research we have developed the hypotheses: Hypothesis 1: Age Q3 affects how people are accepted at work Q5. We used Pearson’s Correlation Analysis to determine the strength of the connection between the variables of this hypothesis. We got the correlation coefficient 0.415. By means of the correlation, it was shown that between these variables there is a moderate positive attitude. To test the reliability of hypothesis we used Chi-square test that indicates that the statistical significance level P (Sig.) does not exceed 0.001. Accordingly, the first hypothesis is reliable. According to both indicators, hypothesis 1: Age Q3 affects how people are accepted at work Q5 has been confirmed. Hypothesis 2: Age Q3 affects working experience Q4. We used Pearson’s Correlation Analysis to determine the strength of the connection between the variables of this hypothesis. We got the correlation coefficient 0.122. By means of the correlation, it was shown that between these variables there is a weak positive attitude. To test the reliability of hypothesis we used Chi-square test that indicates that the statistical significance level P (Sig.) does not exceed 0.001. Accordingly, the first hypothesis is reliable. Consequently, the hypothesis 4 Age Q3 affects whether you were promoted in a career over the last 5 years has been confirmed Hypothesis 5: Age Q3 affects whether a person is searching for a job in a parallel mode Q34. We used Pearson’s Correlation Analysis to determine the strength of the connection between the variables of this hypothesis. We got the correlation coefficient 0.131. By means of the correlation, it was shown that between these variables there is a weak positive attitude. To test the reliability of hypothesis we used Chi-square test that indicates that the statistical significance level P (Sig.) equal to 0.082. Which means that hypothesis 5 is not reliable. Consequently, the hypothesis 5 Q3 Age affects whether a person is searching for a job in a parallel mode Q34 has not been confirmed. Some recommendations were worked out based on the research


Breast Care ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. 123-127 ◽  
Author(s):  
Lale Duman ◽  
Naciye S. Gezer ◽  
Pınar Balcı ◽  
Canan Altay ◽  
Işıl Başara ◽  
...  

Background: This study was performed to compare the mammographic, sonographic, and magnetic resonance imaging (MRI) characteristics of phyllodes tumors and fibroadenomas, which may resemble each other. Methods: Preoperative mammograms, B-mode and Doppler sonograms, and dynamic breast MRIs of 72 patients with pathologically proven fibroadenomas and 70 patients with pathologically proven phyllodes tumor were evaluated in this retrospective study. Statistical significance was evaluated using chi-square and Fisher's exact tests. Correlations in lesion size among radiological methods were examined by Pearson's correlation analysis. Results: The features that differed on mammogram were size, shape, and margin of the mass. Sonograms showed significant differences in size, shape, margin, echo pattern, and vascularization of the mass. Pearson's correlation analysis showed strong agreement among radiological methods in terms of assessment of size. Tumor size ≥ 3 cm, irregular shape, microlobulated margins, complex internal echo pattern, and hypervascularity were significant findings of phyllodes tumors. Internal cystic areas on MRI were frequently associated with phyllodes tumors. Conclusion: Mammographic, sonographic, and MRI findings of fibroadenomas and phyllodes tumors could help radiologists to ascertain imaging-histological concordance and guide clinicians in their decision making regarding adequate follow-up or the necessity of biopsy.


2017 ◽  
Vol 41 (S1) ◽  
pp. S690-S690 ◽  
Author(s):  
C. Kim ◽  
C. Seockhoon ◽  
L. Suyeon ◽  
Y. Soyoun ◽  
P. Boram

ObjectiveEspecially medical students set high academic standard, and try hard to achieve because they are requested to studying medicine perfectly. Multidimensional perfectionism scale (MPS) is used to measure perfectionism in medical student. The purpose of the present study was to investigate the relationships between stress and various factors including perfectionism.MethodsWe enrolled 159 medical students from University of Ulsan college of Medicine. We used the Medical Stress scale (MSS), the Multidimensional Perfectionism Scale(MPS), the patient health questionnaire-9(PHQ-9), the academic motivation scale (AMS), the insomnia severity scale(ISS), and The revised neo personality inventory.ResultTo analyze data, we used Pearson's correlation and logistic regression analysis. In the first step- Pearson's correlation analysis, a motivation, PHQ-9, ISI, perfectionism and neuroticism traits of NEO-PI significantly correlated with stress level (P < 0.001). In the second step, logistic regression analysis indicated that students who feel high level of academic stress (MSS score ≥ 28) are also related to a motivation, insomnia, perfectionism and neuroticism traits of NEO-PI (R2 = 0.389, P < 0.05).ConclusionStudent who tend to be perfect feel more academic stress. The high level of stress related to insomnia and a motivation in medical student. Moreover, personality trait also can influences their psychological stress level.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2016 ◽  
Vol 2 (1) ◽  
pp. 32-40
Author(s):  
Very Julianto ◽  
Pipih Muhopila

The research aimed to understand the relation between fasting and the anger regulation. Subject’s researchs were 100 students of UIN Sunan Gunung Djati Bandung taken by random sampling. Subjects consist of 43 man and 57 woman. This research used quantitative method. Data was collected by questionare, and method of analysis was Pearson’s correlation test. The result has shown there is relation between fasting and the anger regulation with scale of correlation was 54%. Subject that often fasting, carbohydrate input was lower so that the subject had high level of anger regulation.


2021 ◽  
Vol 7 (2) ◽  
pp. 39-47
Author(s):  
Victoria Kuo

  This paper tracks phonological change in the (ING) morpheme in two YouTube personalities over time. Both participants relocated to a different dialect region than their hometowns over the course of their careers, motivating the hypothesis of this paper: geographic relocation is a catalyst for adult accent change. With a longitudinal study method, I selected audio clips from different periods in each YouTuber’s life and collected formant measurements of the targeted words. Based on a Pearson’s correlation analysis and hypothesis testing models, the participants showed statistically significant progression in their speech over time. Additionally, the speakers exhibited audible shifts most likely as an effect of aging. It is inconclusive whether this study’s observations are influenced by the difference in dialect or societal pressures of the relocated locations without further research in the other variables of each regional dialect. 


2021 ◽  
Vol 11 (11) ◽  
pp. 100-107
Author(s):  
V. Kechedzhyiev

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.


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