scholarly journals EVALUASI DATA CLIMATE HAZARDS GROUP INFRARED PRECIPITATION WITH STATION (CHIRPS) DENGAN DATA PEMBANDING AUTOMATIC WEATHER STATIONS (AWS) DALAM MENGESTIMASI CURAH HUJAN HARIAN DI PROVINSI PAPUA BARAT

2021 ◽  
Vol 10 (1) ◽  
pp. 64
Author(s):  
Budiyono Budiyono ◽  
Arif Faisol
Keyword(s):  
Pearson Correlation ◽  
Daily Rainfall ◽  
Absolute Error ◽  
Satellite Observation ◽  
Probability Of Detection ◽  
T Test ◽  
Data Recording ◽  
Significant Difference ◽  
West Papua ◽  
Weather Stations

This research aims to evaluate the CHIRPS data in estimating daily rainfall in West Papua compared with automatic weather stations (AWS) data recording. The data used in this research are daily CHIRPS data and AWS daily data recording 1996 to 2020 from AWS Rendani–Manokwari, AWS Jefman–Raja Ampat, AWS Torea–Fakfak, and AWS Kaimana–Kaimana. CHIRPS data were evaluated using the Point to Pixel method based on numerical and categorical parameters i.e., root mean square error (RMSE), mean error (ME), mean absolute error (MAE), Pearson correlation (r), probability of detection (POD), critical success index (CSI), and T-test. The research showed that CHIRPS had a significant difference to AWS data in estimating daily rainfall in West Papua based on a T-test. However CHIRPS has a moderate accuracy in estimating daily rainfall in West Papua with RMSE = 8.59 mm, ME=2.75 mm, and MAE = 5.15 mm and had a moderate positive correlation with AWS data with r= 0.43. Besides, CHIRPS has good accuracy in detecting rain events in West Papua indicated by a POD = 0.72 and CSI = 0.43. Therefore, CHIRPS data can be used as an alternative solution for providing rainfall data in West Papua.   Keywords:  satellite observation, rainfall predictor, point to pixel 

Effect of a-Week Summer Camp on the Hopelessness and Self-Esteem of the University Students Attending Sport Sciences Faculty

2018 ◽  
Vol 7 (4) ◽  
pp. 42-49 ◽  
Author(s):  
Korkmaz YİĞİTER ◽  
Hakan TOSUN
Keyword(s):  
University Students ◽  
Summer Camp ◽  
Pearson Correlation ◽  
Self Esteem ◽  
Female Students ◽  
T Test ◽  
Significance Level ◽  
Significant Difference ◽  
Post Test ◽  
The University

The aim of this study is to investigate the effects of participation in a 1-week summer camp on thehopelessness and self-esteem of the university students attending Sport Sciences Faculty. Participants were 36university students assigned to experiment group using a random procedure. Coopersmith Self-esteem and Beck Hopelessness Scales were completed at the beginning and end of the summer camp by designed the university. The obtained data were analysed in the SPSS 18.0 program and the significance level was taken as 0.05. The descriptive statistics, independent simple t test, paired simple t test and Pearson correlation were used for analyse the data in the study. According to the results of the research, no significant difference was observed in the comparison of the hopelessness and self-esteem levels between pre and post-test. In addition, there was a significant difference in the hopelessness level of male and female students but any significant difference was not observed in terms of self-esteem. There was a significant relationship between hopelessness and self-esteem pre and post-test. These result shows that a 1-week summer camp cannot change the hopelessness or self-esteem level. However, as the self-esteem rises, the rate of despair decreases whereas as the despair rises, the selfesteem decreases.

scholarly journals GENDER, RACES AND THEIR RELATIONSHIP WITH NEEDS MOTIVATION IN ACADEMIC PERFORMANCE

2021 ◽  
Vol 3 (9) ◽  
Author(s):  
Ting Tiang Hii ◽  
Shahlan Surat
Keyword(s):  
Academic Performance ◽  
Pearson Correlation ◽  
Sampling Technique ◽  
T Test ◽  
Survey Method ◽  
School Students ◽  
Test Analysis ◽  
Gender And Race ◽  
Significant Difference ◽  
Motivation Score

The study is aimed to identify the relationship between gender and race with needs motivation in academic performance for secondary school students. A survey method through questionnaire was used to collect motivation score and demographic of samples. A total of 400 form 3 students from five different secondary schools in Skudai, Johor were selected as respondents using a stratified random sampling technique. The David McClelland Motives questionnaire was used as a research instrument, in which it covers three main domains of motivation, namely needs of achievement, needs of affiliation, and needs of power. Inferential T-test and Pearson correlation were used to test the hypotheses. The T-test analysis stated that there was no significant difference between gender and race with motivation scores. Pearson correlation analysis showed that there was a weak significant positive relationship between motivation score and student's academic performance mean score. In a conclusion, need motivation has an influence on students’ academic performance. Teachers should assimilate a variety of teaching styles and encourage students from time to time to motivate them to strive for excellence.

scholarly journals The relationship between perceived health outcomes of recreation, exercise dependence, and life satisfaction: A study with fitness center members

2021 ◽  
Vol Supplement 1 (13) ◽  
pp. 43-50
Author(s):  
EMRAH SERDAR
Keyword(s):  
Life Satisfaction ◽  
Health Outcomes ◽  
Pearson Correlation ◽  
Perceived Health ◽  
T Test ◽  
Exercise Dependence ◽  
Fitness Center ◽  
Significant Difference ◽  
Main Effect ◽  
The Relationship

Background: This study aimed to investigate the relationship between perceived health outcomes of recreation, exercise dependence, and life satisfaction among fitness center members. Material and methods: The study sample consisted of 490 participants, 336 males, and 154 females, who were members of a private fitness center in Istanbul. The participants were selected using a purposeful sampling method. Data collection tools included the Perceived Health Outcomes of Recreation Scale, developed by Gomez et al. and adapted to Turkish by Yerlisu Lapa et al., the Exercise Dependence-21 Scale, developed by Hausenblans and Downs and adapted by Gürbüz and Aşçı and the Life Satisfaction Scale developed by Diener et al. and adapted by Yetim. The data were analyzed using independent t-test, MANOVA, and Pearson correlation analysis. Results: The independent t-test results showed a significant difference in LSS scores by gender. MANOVA analysis results revealed that the main effect of gender on the sub-dimensions of PHORS was not significant, but there was a difference in the PSYC sub-dimension. Besides, the main effect of gender on ED-21 and all sub-dimensions was significant. Conclusions: There was a positive and moderate relationship between LSS and PHORS; a negative and low-level correlation between LSS and ED-21, and between PHORS and ED-21.

Burden, Social Support, and Life Satisfaction Among Caregivers of Children With Intellectual Disability: The Case of Felege Abay and Shembt Primary Schools, Bahir Dar, Ethiopia

2019 ◽  
Vol 39 (3) ◽  
pp. 147-153 ◽  
Author(s):  
Fentanesh Gebeyehu ◽  
Amare Sahile ◽  
Meseret Ayalew
Keyword(s):  
Social Support ◽  
Life Satisfaction ◽  
Intellectual Disability ◽  
Primary Schools ◽  
Pearson Correlation ◽  
Sampling Technique ◽  
T Test ◽  
Sociodemographic Variables ◽  
Significant Difference ◽  
Children With Intellectual Disability

This study was conducted to examine the burden, social support, and life satisfaction among caregivers of children with intellectual disability. The level of burden, social support, and life satisfaction of caregivers; the relationship among burden level, social support, and life satisfaction; and burden level difference across sociodemographic characteristics of the participants were the objectives of this study. With inclusion criteria of availability, willingness, and pertinent priority of being parents, grandparents, and siblings of the child, 74 caregivers were selected using comprehensive sampling technique. Descriptive statistics, one sample t test, Pearson correlation coefficient, independent sample t test, and one-way analysis of variance, were used for data analysis. The findings revealed that caregivers are experiencing much level of burden with inadequate social support and have pitiable satisfaction in their life. Burden is negatively correlated with social support and life satisfaction, but social support is positively correlated with satisfaction in life. Some of the sociodemographic variables, such as sex and school, were showing significant differences in the experiences of burden level, while all other sociodemographic variables used in this study were not having significant difference. The result implied that caregivers are in need of social support so as to outweigh the level of burden and enhance their satisfaction in life.

scholarly journals Evaluasi Data TerraClimate Dalam Mengestimasi Suhu Udara Di Provinsi Papua Barat

2021 ◽  
Vol 14 (1) ◽  
pp. 15-25
Author(s):  
Baso Daeng ◽  
Arif Faisol
Keyword(s):  
Air Temperature ◽  
Research Unit ◽  
Mean Square ◽  
Data Recording ◽  
Climate Research ◽  
West Papua ◽  
Weather Stations ◽  
Papua Barat ◽  
Maximum Air Temperature ◽  
Minimum Air Temperature

Abstrak. Terra Climate merupakan seperangkat data iklim yang mengkombinasikan antara data WorldClim, Climate Research Unit (CRU), dan Japanese 55-year Reanalysis (JRA 55). TerraClimate menyediakan data iklim bulanan tahun 1958 – 2019  pada resolusi spasial ~4 km. Penelitian ini bertujuan untuk mengevaluasi data TerraClimate dalam mengestimasi suhu udara di Provinsi Papua Barat. Data yang digunakan pada penelitian ini adalah data TerraClimate dan data suhu udara perekaman tahun 1996 – 2019 yang diperoleh dari automatic weather stations (AWS) Rendani – Kabupaten Manokwari, AWS Jefman – Kabupaten Raja Ampat, AWS Torea – Kabupaten Fakfak, dan AWS Kaimana – Kabupaten Kaimana. Data TerraClimate dievaluasi dengan dibandingkan data AWS menggunakan metode point to pixel berdasarkan 5 (lima) parameter statistik, yaitu mean error (ME), root mean square error (RMSE), relative bias (RBIAS), percent bias (PBIAS), dan koefisien korelasi Pearson (r). Hasil penelitian menunjukkan bahwa data TerraClimate cenderung overestimated dalam mengestimasi suhu udara minimum bulanan dan cenderung underestimated dalam mengestimasi suhu udara maksimum bulanan di Provinsi Papua Barat. Namun TerraClimate memiliki akurasi yang sangat baik dalam mengestimasi suhu udara bulanan di Provinsi Papua Barat  dengan nilai ME= 0,87 oC, RMSE = 1,19 oC, RBIAS = 0,04, dan PBIAS = 3,71 dalam mengestimasi suhu udara minimum, dan ME = 0,54 oC, RMSE = 0,88 oC,  RBIAS = 0,02, dan PBIAS = 1,79 dalam mengestimasi suhu udara maksimum. Disamping itu TerraClimate memiliki korelasi yang sedang terhadap data AWS nilai r = 0,40 - 0,68. Sehingga TerraClimate dapat digunakan sebagai solusi alternatif untuk penyedia data suhu udara di Provinsi Papua Barat.An Evaluation of TerraClimate Data in Estimating Monthly Air Temperature in West PapuaAbstract. TerraClimate is a climate dataset that combines WorldClim data, Climate Research Unit (CRU) data, and Japanese 55-year Reanalysis (JRA 55) data at ~4 km spatial resolution. TerraClimate provides monthly climate data from 1958 to recent years. This research aims to evaluate the TerraClimate data in estimating monthly air temperature in West Papua compared with automatic weather stations (AWS) data recording. The data used in this research are TerraClimate data and AWS data recording from 1996 to 2019 obtained from AWS Rendani – Manokwari, AWS Jefman – Raja Ampat, AWS Torea – Fakfak, and AWS Kaimana – Kaimana. TerraClimate data were evaluated using the Point to Pixel method based on 5 (five) statistical parameters i.e., mean error (ME), root mean square error (RMSE), relative bias (RBIAS), percent bias (RBIAS), and Pearson correlation coefficient (r). The research showed that TerraClimate is overestimated in estimating monthly minimum air temperature and underestimated in estimating monthly maximum air temperature in West Papua. However, TerraClimate and has very good accuracy in estimating the monthly temperature in West Papua with ME = 0.87 oC, RMSE = 1.19 oC, RBIAS = 0.04, and PBIAS = 3.71 in estimating monthly minimum air temperature, and ME=0.54 oC, RMSE = 0.88 oC, RBIAS = 0.02, PBIAS = 1.79 in estimating monthly maximum air temperature. Besides, TerraClimate data has a moderate correlation with AWS data in estimating monthly air temperature with r= 0.40 - 0.68. Therefore, TerraClimate can be used as an alternative solution for providing air temperature data in West Papua. 

scholarly journals A comparison between high-resolution satellite precipitation estimates and gauge measured data: case study of Gorganrood basin, Iran

2018 ◽  
Vol 67 (3) ◽  
pp. 236-251 ◽  
Author(s):  
Donya Dezfooli ◽  
Banafsheh Abdollahi ◽  
Seyed-Mohammad Hosseini-Moghari ◽  
Kumars Ebrahimi
Keyword(s):  
Pearson Correlation ◽  
Absolute Error ◽  
Probability Of Detection ◽  
Critical Success ◽  
Precipitation Estimates ◽  
Seasonal Basis ◽  
Precipitation Gauge ◽  
Critical Success Index ◽  
Trmm 3B42

Abstract The aim of this paper is to evaluate the accuracy of the precipitation data gathered from satellites including PERSIANN, TRMM-3B42V7, TRMM-3B42RTV7, and CMORPH, over Gorganrood basin, Iran. The data collected from these satellites (2003–2007) were then compared with precipitation gauge observations at six stations, namely, Tamar, Ramiyan, Bahlakeh-Dashli, Sadegorgan, Fazel-Abad, and Ghaffar-Haji. To compare these two groups, mean absolute error (MAE), bias, root mean square error (RMSE), and Pearson correlation coefficient criteria were calculated on daily, monthly, and seasonal basis. Furthermore, probability of detection (POD), false alarm ratio (FAR), and critical success index (CSI) were calculated for these datasets. Results indicate that, on a monthly scale, the highest correlation between observed and satellite-gathered data calculated is 0.404 for TRMM-3B42 at Bahlakeh-Dashli station. At a seasonal scale, the highest correlation is calculated for winter data and using PERSIANN data, while for the other seasons, TRMM-3B42 data showed the best correlation with observed data. The high values of RMSE and MAE for winter data showed that the satellites provided poor estimations at this season. The best and the worst values of RMSE for studied satellites belonged to Sadegorgan and Ramiyan stations, respectively. Furthermore, the PERSIANN gains a better CSI and POD while TRMM-3B42V7 showed a better FAR.

scholarly journals Relationship between self-efficacy and life satisfaction according to exercise participation in obese female university students

2018 ◽  
Vol 15 (4) ◽  
Author(s):  
Turhan Toros ◽  
İnci Kesilmiş ◽  
İbrahim Başhan
Keyword(s):  
Life Satisfaction ◽  
University Students ◽  
Self Efficacy ◽  
Pearson Correlation ◽  
Female Students ◽  
T Test ◽  
Exercise Participation ◽  
Obese Female ◽  
Significant Difference ◽  
The Mean

The aim of this study was to examine the relationship between self-efficacy and life satisfaction according to exercise participation in obese female university students. The sample of the study consisted of over 18 age 145 obese (BMI≥30) that were regularly exercising for at least 4 days, 90 minutes in a week for 6 mounts and 136 obese sedentary (BMI≥30). The mean age was (20.69 ± 1.84) for obese female students who participated regular exercise and (20.19 ± 1.49) for obese female university students who was sedentary. “General Self-Efficacy Scale” that originally developed by Sherer et al. (1982) and adapted to Turkish by Yıldırım and İlhan (2010) and “Life Satisfaction Scale” that originally developed by Diener et al. (1985) and adapted to Turkish by Yetim (1991) were used for measurement. For statistical analysis, The Kolmogorov-Smirnov test was used to determine whether the scores were normally distributed. Descriptive statistics, independent sample t test and pearson correlation analysis were also applied. There was statistically significant difference for the mean life satisfaction (t = 7.68, p <.05) but there was no statistically significant difference for the mean self-efficacy (t = 1.17; p> .05) between two groups according to the t test results. There was a significant positive correlation between life satisfaction and total self-efficacy scores (r = .551**). As a result, there was significant difference in life satisfaction between two groups. Obese female students with high self-efficacy perceptions may be aware of their abilities and thus rely on their abilities. In this case, it can be concluded that they are happy and generally enjoy life.

scholarly journals PERBEDAAN INDEKS PLAK SEBELUM DAN SESUDAH PENGUNYAHAN BUAH APEL

e-GIGI ◽  
2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Preazy Agung C. Penda ◽  
Stefana H. M. Kaligis ◽  
Juliatri .
Keyword(s):  
Oral Hygiene ◽  
Sampling Method ◽  
T Test ◽  
Plaque Index ◽  
P Value ◽  
Significant Difference ◽  
West Papua ◽  
Before And After ◽  
Plaque Control ◽  
Papua Barat

Abstract: Teeth and mouth are important parts in human body. In order to perform its function properly, dental and oral hygiene need to be considered. Dental and oral hygiene can be observed from the formation of plaque. The effort to prevent plaque formation is called plaque control. Plaque control can be done naturally by masticating fibrous foods, inter alia apple. This study aimed to determine whether there were any difference in plaque index between before and after masticating an apple. Samples were collected by using total sampling method. There were 44 samples, obtained from 72 students of Senior High School Sorong, West Papua. The results showed that the average of plaque index before and after masticating an apple was 2.1 and 1.2. The paired sample t-test showed a P value of 0.000. Conclusion: There was a significant difference in plaque index before and after masticating an apple.Keywords: plaque index, masticating, appleAbstrak: Gigi dan mulut merupakan bagian penting dalam tubuh manusia.Agar dapat menjalankan fugsinya dengan baik, kesehatan gigi dan mulut perlu diperhatikan.Tingkat kebersihan gigi dan mulut dapat dilihat dari pembentukan plak.Upaya pencegahan timbulnya plak disebut dengan kontrol plak.Kontrol plak dapat dilakukan secara alamiah yaitu dengan mengunyah makanan berserat, salah satunya adalah buah apel. Penelitian ini bertujuan untuk mengetahui apakah terdapat perbedaan indeks plak sebelum dan sesudah pengunyahan buah apel. Metode yang digunakan dalam penelitian ini ialah metode Pra eksperimental dengan rancangan pretest and posttest one group only yang dilakukan pada siswa kelas XI SMA Negeri 1 Sorong Papua Barat. Metode pengambilan sampel yang digunakan ialah total sampling dengan jumlah responden 44 dari 72 siswa. Hasil penelitian menunjukkan rerata indeks plak sebelum pengunyahan buah apel ialah 2,1 dan rerata indeks plak sesudah pengunyahan buah apel ialah 1,2. Analisis data menggunakan uji paired t-test menunjukkan P = 0,000. Simpulan: Terdapat perbedaan yang signifikan antara indeks plak sebelum dengan sesudah pengunyahan buah apel.Kata kunci: indeks plak, pengunyahan, buah apel

scholarly journals An Investigation of the Attitudes of Health & Safety Personnel toward Safety in Construction Projects

2019 ◽  
Author(s):  
Ahmad Ghorbani ◽  
Ahmad Soltanzadeh
Keyword(s):  
Factor Analysis ◽  
Work Experience ◽  
Pearson Correlation ◽  
Correlation Coefficients ◽  
T Test ◽  
Test Results ◽  
Entire Study ◽  
Safety Attitudes ◽  
Significant Difference ◽  
Study Population

Background and objective: With the development of technology and its increased use, potential dangers in industrial environments has increased. The purpose of this study was to evaluate the attitudes of the Fajr Institute's Health & Safety Executive (HSE) personnel toward safety. Method: The study population consisted of HSE staff (n: 39). Data gathering tool in this descriptive-analytical study was a researcher-developed, 30-item questionnaire with acceptable validity (1.9) and reliability (0.87). Data were analyzed using the SPSS 19. Samples were selected by census sampling and the entire study population was studied. Statistical methods used were mean, variance, standard deviation, t-test, Pearson's correlation coefficient, and factor analysis. Result: The average age of the participants was 28.6 years, 56.5% of them were single and 43.5% married. The average work experience of the participants was 5.2 years. Bachelor's degree (54%) and Master's degree (23%) were the most and least frequent academic degrees, respectively. The Pearson correlation coefficients showed age and work experience were not correlated with safety attitudes. The t-test results showed there was a significant difference between the viewpoints of single and married workers and attitude variable (P<0.01).The t-test results also showed there was no significant difference between education level and attitude. Conclusion: According to the factor analysis results, items were classified into four categories: management factors, educational factors, communication factors, and regulatory factors.

scholarly journals Relationship Between the History of Injury and Functional Movement Screening Scores in Iran National Team Wrestlers

2020 ◽  
Vol 11 (1) ◽  
pp. 23-32
Author(s):  
Mohammad Rahimi ◽  
◽  
Reza Rajabi ◽  
Hooman Minoonejad ◽  
Mohammad Hosain Alizadeh ◽  
...  
Keyword(s):  
Roc Curve ◽  
Sports Injuries ◽  
Pearson Correlation ◽  
T Test ◽  
Functional Movement ◽  
National Team ◽  
Significant Difference ◽  
Movement Screening ◽  
History Of ◽  
The Relationship

Introduction: Wrestling is one of the most popular Olympic sports in Iran. Therefore, preseason screening and the prevention of sports injuries are very important. This study aimed to investigate the relationship between the history of injury and Functional Movement Screen (FMS) scores of the national team wrestlers and determine the cut-off point. Methods: The statistical sample included 136 national team wrestlers. The obtained data were analyzed using the Pearson correlation coefficient, t-test, ROC curve, and contingency table. Results: The results showed that FMS scores were higher in the wrestlers without previous injury compared to the injured ones. The t-test results demonstrated no significant difference between deep squat, straight and active leg raise, trunk stability push-up, and rotatory stability. According to the results, there is a poor negative, but statistically significant, the relationship between the number of previous injuries and FMS scores. Based on the ROC curve for FMS, the cut-off point of 16.5 was reported with the sensitivity and specificity values of 0.587 and 0.658, respectively. Conclusion: The results indicated that FMS can be used for fast and accurate control of injury probability in wrestling athletes. Therefore, besides the medical tests, FMS tests should be employed by wrestling coaches as a valid tool for injury prevention and the identification of athletes prone to injury.

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