scholarly journals Indoor PM1, PM2.5, PM10 and Outdoor PM2.5 Concentrations in Primary Schools in Sari, Iran

2013 ◽  
Vol 64 (3) ◽  
pp. 371-377 ◽  
Author(s):  
Mahmoud Mohammadyan ◽  
Bijan Shabankhani

Abstract This study was carried out to determine the distribution of particles in classrooms in primary schools located in the centre of the city of Sari, Iran and identify the relationship between indoor classroom particle levels and outdoor PM2.5 concentrations. Outdoor PM2.5 and indoor PM1, PM2.5, and PM10 were monitored using a real-time Micro Dust Pro monitor and a GRIMM monitor, respectively. Both monitors were calibrated by gravimetric method using filters. The Kolmogorov-Smirnov test showed that all indoor and outdoor data fitted normal distribution. Mean indoor PM1, PM2.5, PM10 and outdoor PM2.5 concentrations for all of the classrooms were 17.6 μg m-3, 46.6 μg m-3, 400.9 μg m-3, and 36.9 μg m-3, respectively. The highest levels of indoor and outdoor PM2.5 concentrations were measured at the Shahed Boys School (69.1 μg m-3 and 115.8 μg m-3, respectively). The Kazemi school had the lowest levels of indoor and outdoor PM2.5 (29.1 μg m-3 and 15.5 μg m-3, respectively). In schools located near both main and small roads, the association between indoor fine particle (PM2.5 and PM1) and outdoor PM2.5 levels was stronger than that between indoor PM10 and outdoor PM2.5 levels. Mean indoor PM2.5 and PM10 and outdoor PM2.5 were higher than the standards for PM2.5 and PM10, and there was a good correlation between indoor and outdoor fine particle concentrations.

2021 ◽  
pp. 231971452110650
Author(s):  
Hitesh Sood ◽  
Rajendra Prasad Sharma

Digitalization has posed severe challenges to traditional businesses. Traditional firms are still not sure of the benefits of digitally engaging their customers. In contrast, the new-age firms have successfully leveraged digital media. This article examines the relationship between digital adoption by customers and customer lifetime value (CLV). This study analysed the mobile recharges by 13 million rural and urban prepaid telecom customers over 60 million transactions from January 2019 to June 2019 in the Indian telecom industry. The computed predictive CLV has been computed and compared across various customer segments (digitally engaged, partially digitally engaged and digitally unengaged customers). The studied data were statistically validated using the Kruskal–Wallis test. The data proved to be non-normally distributed as per the Kolmogorov–Smirnov test. The results supported that digital adoption helps increase customer engagement, loyalty and CLV. The study presents several managerial implications, such as digitally engaged customers being a surrogate for high value and more profitable customers. Also, digitally engaged customers are relatively more loyal, contributing higher CLV than digitally unengaged customers.


2021 ◽  
Vol 3 (2) ◽  
pp. 45-48
Author(s):  
Mohammad Saeed Kiani ◽  
◽  
Keivan Shabani Moghaddam ◽  

The purpose of this study was to investigate the relationship between age and athletes' attitude to doping. A 40- question researcher-made questionnaire was used to collect the data. The face and content validity of the questionnaire was confirmed by a survey of professors related to the research subject and its reliability was reported to be 0.79 using Cronbach's alpha. The statistical population of the study consisted of all athletes in Kermanshah province that to the large number of samples, cluster random sampling method was used. Finally, 700 questionnaires were returned, out of which 431 were used. Data were analyzed using SPSS software. Descriptive statistics (mean, standard deviation, percentage, tables, graphs, etc.) for analysis of data as well as inferential statistics (one-sample t-test, independent t-test and analysis of variance) and Kolmogorov-Smirnov test was used to determine the normality of the data distribution. The results showed that there is a difference between the new generation of athletes and the older generation in terms of doping. Therefore, the athlete should consult with experienced people (those who use these substances) and a physician, and be aware of the side effects of these supplements by attending training and science classes. Avoid using them whenever possible.


Author(s):  
Yura Yuka Sato dos Santos ◽  
Lucas Antônio Monezi ◽  
Milton Shoiti Misuta ◽  
Luciano Allegretti Mercadante

Basketball performance analysis using technical indicators dissociated from the moment they occurred in the game seems to no longer respond to emerging issues of the game as it does not identify the periods when a team’s offensive efficiency has increased or decreased. The aim was to characterize and compare the technical indicators in the positive and negative periods and in the whole game of winning and losing teams in men’s professional basketball. Fourteen games of professional men’s teams of the “Novo Basquete Brasil” Championship in the regular 2011/2012 season were filmed and analyzed. The Kolmogorov-Smirnov test was used to verify data normality. The independent T test was used for variables with normal distribution and the Mann-Whitney test for variables that did not present normal distribution, in order to compare teams’ performance. Analysis in the whole game showed that winning teams had significantly higher averages in successful 3-point field goals but in the positive periods, they showed higher averages for successful free throws, successful layups, defensive rebounds and defensive fouls, and in negative periods, losing teams made more defensive and offensive fouls. The teams’ performance in the whole game may not elucidate the determinant indicators for building the difference in the scoreboard. It is suggested that coaches should identify the periods of best and worst teams’ performance in the game and the indicators involved, preparing teams to overcome the negative periods and obtain more positive periods in the game. 


2013 ◽  
Vol 4 (1) ◽  
pp. 541-550
Author(s):  
Sunaryo Sunaryo

The primary objective of this research is to learn the effecting inflation, interest rate of Indonesian bank certificate, changes of exchange rate, and changes of outstanding money amounts variables with changes of the return Jakarta composite index. Secondary data were collected from Jakarta composite Index, annual Indonesian bank report, Jakarta daily newspaper, and preceding research by using judgment sampling until it got normal distribution data with Kolmogorov-Smirnov test. The results of this research described that inflation, Interest Rate of Indonesian Bank Certificate, and changes of outstanding money variables have not significant effect to the changes of return Jakarta composite index; and changes of exchange rate have significant effect to the changes return of Jakarta composite index. Inflation, interest rate of Indonesian bank certificate, changes of exchange rate, and changes of outstanding money amounts variables have simultaneous significant effect to thechanges return of Jakarta composite index. Topic of this research may continue using other countries or added more than 75.20 % of independence variables.


Biosfer ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 14-19
Author(s):  
Debora Evania Purba ◽  
Supriyatin Supriyatin ◽  
Diana Vivanti Sigit

Interpersonal teacher behaviour is behaviors that specifically relate to how teachers interact with their students on a personal. The purpose of this study was to determine the relationship between students’ perceptions of interpersonal teacher behaviour with students’ biology outcomes. The research was conducted in January-June 2015 at the 13 Jakarta Senior High School. The method used was descriptive correlational method. The data of students’ perceptions of interpersonal teacher behaviour is colected with the Questionnaire on Teacher Interaction (QTI). Sampling was done by using Simple Random Sampling. The sample consisted of 85 students. The data tested by normality test using the Kolmogorov-Smirnov test (α = 0.05) and test homogeneity using Bartlett’s test at α = 0.05. The result showed that the data was normally distributed and homogen. The regression model is Ŷ = -85.53 + 0.96X. The correlation coefficient obtained was 0.76, which means there is a positive relationship between Students’ Perceptions of Interpersonal Teacher Behaviour with Students’ Biology Outcomes. In brief, teachers interpersonal has to be improved for getting great students learning outcome.


Author(s):  
Sri Suranta ◽  

This research was conducted with the aim of: (1) to determine whether firm characteristics and corporate governance affect tax avoidance in mining companies in Indonesia, and (2) to determine whether corporate governance moderates the relationship between firm characteristics and tax avoidance. The research sample is all mining companieslisted on the IDX forthe period 2015 to 2018, totally 156 observations. From 156 observations, 84 observations can be analyzed. This research data is secondary data in the form of mining company Annual Reports obtained from the official website of the IDX, namely www.idx.co.id and the official websites of the respective companies. Data analysis to test data normality used the Kolmogorov Smirnov test. Hypothesis testing uses moderated regression analysis (MRA) with SPSS. The result of the analysis shows that firm characteristics consisting of leverage and ROE have an effect on tax avoidance, while company size has no effect on tax avoidance. Another result is that CG as measured by the proportion of independent commissioners does not moderate the relationship between firm characteristics and tax avoidance.


2012 ◽  
Vol 36 (3) ◽  
pp. 1015-1022 ◽  
Author(s):  
Álvaro José Back ◽  
José Luiz Rocha Oliveira ◽  
Alan Henn

The purpose of this study was to adjust equations that establish relationships between rainfall events with different duration and data from weather stations in the state of Santa Catarina, Brazil. In this study, the relationships between different duration heavy rainfalls from 13 weather stations of Santa Catarina were analyzed. From series of maximum annual rainfalls, and using the Gumbel-Chow distribution, the maximum rainfall for durations between 5 min and 24 h were estimated considering return periods from 2 to 100 years. The data fit to the Gumbel-Chow model was verified by the Kolmogorov-Smirnov test at 5 % significance. The coefficients of Bell's equation were adjusted to estimate the relationship between rainfall duration t (min) and the return period T (y) in relation to the maximum rainfall with a duration of 1 hour and a 10 year return period. Likewise, the coefficients of Bell's equation were adjusted based on the maximum rainfall with a duration of 1 day and a 10 year return period. The results showed that these relationships are viable to estimate short-duration rainfall events at locations where there are no rainfall records.


2015 ◽  
Vol 120 ◽  
pp. 417-426 ◽  
Author(s):  
C. Reche ◽  
I. Rivas ◽  
M. Pandolfi ◽  
M. Viana ◽  
L. Bouso ◽  
...  

2017 ◽  
Vol 1 (3) ◽  
pp. 144
Author(s):  
Awaluddin Awaluddin ◽  
Yuldeni Yuldeni

<p><em>Hypertension is one of the problems are quite dominant in the world, both of develope countries and developing countries. Blood pressure naturally tends to increase with age. This study aimed to determine the relationship of knowledge and prayer toward blood pressure in hypertensive elderly at Balai Pelayanan Sosial Tresna Werdha (BPSTW) Khusnul Khotimah Pekanbaru. The type of this research is quantitative with cross sectional approach. Total of the sample of this study were 40 hypertensive elderly and sampling techniques were using total sampling. Measuring instruments used are questionnaires and tensimeter. Data were analyzed with Kolmogorov smirnov test. The results that there were  relationship between knowledge with p value= 0,029 and prayer with p value= 0,004 toward blood pressure on the hypertension elderly at Balai Pelayanan Sosial Tresna Werdha (BPSTW) Khusnul Khotimah Pekanbaru. Based on these results, hypertension in the elderly is expected to Balai Pelayanan Sosial Tresna Werdha (BPSTW) Khusnul Khotimah Pekanbaru to be able to seek more information about hypertension and more devount on prayers</em>.</p>


2019 ◽  
Vol 3 (2) ◽  
pp. 80-87
Author(s):  
Nurazisah ◽  
A.Nurlaela Amin ◽  
Muriyati

Based on the preliminary survey researchers the number of obesity increased from March and April to May and June 2018. From the results of research conducted by researchers, more eating patterns are less good than good diet and more who do less physical activity than moderate and heavy physical activity. This study aims to determine the relationship between diet and physical activity with the incidence of obesity in housewives in the Taccorong Village, Gantarang District. This study uses an analytical design with a cross-sectional approach. Sampling was done by purposive sampling technique. The population in this study were 1011 people. The sample in this study were 47 respondents. Data analysis using the Chi-square test on diet and using the Kolmogorov Smirnov test on physical activity. The results of the analysis of diet with obesity using the chi-square test obtained the value (p = 0.000) indicating that there was a significant relationship between diet and the incidence of obesity in housewives in Taccorong Village. Whereas physical activity analysis with obesity using Kolmogorov Smirnov test obtained values ​​(p = 0.022) showed that there was a relationship of physical activity with the incidence of obesity in housewives in the Taccorong Village. The conclusion of this study is that there is a relationship between diet and physical activity with the incidence of obesity in housewives in the Taccorong Village, Gantarang Subdistrict, Bulukumba District. It is recommended for housewives to behave in a healthy life by maintaining a good diet and regulating physical activity well in order to avoid various degenerative diseases due to complications from obesity. For Bontonyeleng health centers to be able to form cadres to detect total obesity. For the next researcher who uses food recall 24 hours if using repeated time.


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