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Effects of Learning Environmental Education Using the 5Es-Learning Cycle Approach with the Metacognitive Moves and the Teacher’s Handbook Approach on Learning Achievement, Integrated Science Process Skills and Critical Thinking of High School (Grade 9) Students
Sombat Appamaraka,Paitool Suksringarm,Adisak Singseewo
Pakistan Journal of Social Sciences , 2012,
Abstract: This study aimed to study the effects of the 5Es-learning cycle using the metacognitive moves and the teacher’s handbook instruction on learning achievement, integrated science process skills and critical thinking of 82 high school (Grade 9) students from 2 classes, were selected by the use of the cluster random sampling technique. These students were randomly assigned to an experimental group who learned using the 5Es-learning cycle using metacognitive moves and a control group who learned using the teacher’s handbook instruction, 41 students each. Research instruments included, 6 plans of learning organization by using the 5Es-learning cycle with 3 metacognitive moves: intelligibility, plausibility and wide-applicability; 6 plans of learning organization using the teacher’s handbook, each plan for 3 h of learning in each week; the learning achievement test with 40 items; the integrated science process skills test with 5 subscales and 30 items and the critical thinking test with 5 subscales and 54 items. The data were analyzed by a percentage, a mean, a standard deviation and for testing hypotheses the t-test and the F-test (Two-way MANCOVA) were employed. The major findings revealed as following: The students as a whole, the male students and the female students in the experimental group showed gains in learning achievement, integrated science process skills in general and in 4-5 subscales and critical thinking in general and in 4-5 subscales from before learning (p<0.05). The students with different gender did not statistically indicate those mentioned learning outcomes differently (p>0.05). The experimental group indicated more learning achievement, integrated science process skills in general and critical thinking in general and in 3 subscales: interpretation, deduction and evaluation of arguments, than did the counterparts (p<0.05) and the statistical interactions of gender with learning model on these 3 learning outcomes were not found to be significant (p>0.05).
Application of Inflow Model for Weir Irrigation System without Upstream Dam  [PDF]
Sombat Chuenchooklin, Udomporn Pangnakorn
World Journal of Engineering and Technology (WJET) , 2016, DOI: 10.4236/wjet.2016.43B001

This research was conducted in the upstream watershed of the Mae Yom Irrigation Project, which was located in the Upper Yom River Basin in Phrae Province, Thailand. The most common troublesome in this area is flood and drought and leads to poor water management by difficult river flow forecasting to an existing large weir without upstream dam. The Soil And Water Assessment Tool (SWAT) model was applied for the simulation of the hydrological system and predicting the daily river flow to the upstream weir during flood season in 2006 and 2011 as for simulating and comparing with observed data. The results were fitted to the observed data with Nash and Sutcliffe efficiency (NSE) of ?0.65, and root mean square error (RSME) of 228.0 whereas the mean inflow discharge during wet season in both years was 173.3 cubic meters per second, respectively.

The Causal Factors Influencing Teacher’s Anxiety on Transferring the Schools under the Jurisdiction of the Office of the Basic Education Commission in the Northeastern Region to the Local Government Authority
Sombat Tayraukham
Pakistan Journal of Social Sciences , 2012,
Abstract: This research aims to study the causal factors influencing teachers anxiety on transferring the schools to the local government authorities. Three thousond and five hundred school teachers under the office of education commission region in 19 provinces of the Northeastern region, Thailand was sampled by multi- stage random sampling techniques. The model consisted of four external latent variables: self-confidence, social participatory, attitudes towards local government authority and Internal working relationship. The internal latent variable was the anxiety on transferring the schools to the local government authority. The instruments used for collecting data were: a test on self-confidence, a test on social participatory, a test on attitude towards local government authority and a test on the anxiety on transferring the schools to the local government authority. The data were analyzed by descriptive statistics and validity test of the causal relationship model, a test on internal working relationship. Results indicated that the model fit the empirical data. Goodness of fit measures included chi-square (χ2) value = 300.89 at degree of freedom = 263, probability = 0.053, Goodness of Fit Index (GFI) = 0.99, Adjusted Goodness of Fit Index = 0.98, Standardized Root Mean Square Residual (SRMR) = 0.01 and Root Mean Square Error of Approximation (RMSEA) = 0.00. The variables in the model were found to account for 72% of the dependent variable s cvariance. All variables were statistically significant, having a direct effect on transfer the schools to the local government organization.
Academic Ethics in Research Methodology
Sombat Tayraukham
The Social Sciences , 2013,
Abstract: This research aimed to investigate academic ethics in research methodology of Mahasarakham University’s Graduate Students, to compare between academic ethics in research methodology of Masters students and that of doctoral students and to construct predictive equations of factors that were related to behavioral academic ethics in research methodology. The samples of the study were 66 doctoral students and 434 Master students, who were enrolled in the faculty of Education, Mahasarakham University. The research instrument included: a 30-items scale on the academic ethics in research methodology with discriminating powers ranging from 0.19-0.63 and a reliability of 0.8645. The collected data were analyzed by percentage, mean and standard deviation t-test. Pearson Product-Moment Correlation Coefficient and Multiple Regression Analysis were employed for hypothesis testing. The results of the study showed: that all students who involved as the sample of the study had average scores of 26.35 (SD = 3.00) on academic ethics knowledge and 26.41 (SD = 3.06) on academic ethics behavior, while their attitude score toward academic ethics was at a high level, that there was no difference among masters students and doctoral student in terms of academic ethics knowledge score, academic ethics attitude score and academic ethics behavior score and that academic ethics knowledge and attitude toward academic ethics could predict academic ethics behavior. The multiple correlation coefficient (R) was 0.908 with predicting powers at 82.40%. The equations in the raw-scores form and standard-score form could be written as: the predictive equations in the raw-score form: Y’ = 1.072 + 0.877 know + 0.560 Att and the predictive equations in the standard-score form: Zy’ = 0.860Zknow + 0.081ZAtt.
Comparative Study Using the 2-Hydrological Models with the Global Weather in a Small Watershed, a Case Study in the Upper Tha Chin River Basin, Thailand  [PDF]
Sombat Chuenchooklin, Udomporn Pangnakorn, Puripus Soonthornnonda
World Journal of Engineering and Technology (WJET) , 2019, DOI: 10.4236/wjet.2019.72B003
The hydrological study in the upstream of the Huai Khot Wang Man diversion canal in Huai Khun Kaew watershed of the Upper Tha Chin River Basin in Uthai Thani Province, Thailand was studied. The soil and water assessment tool (SWAT) and the integrated flood analysis systems (IFAS) applied to the analysis of flow at the outlet. The global weather data provided automatically by the models including land use covers and soil types. The climate forecast system reanalysis (CFSR) and the near real-time precipitation (GSMaP_NRT) used in SWAT and IFAS, respectively. The model sensitivity with Nash and Sutcliffe efficiency (NSE), correlation (R2), and root mean square error (RSME) were applied. The monthly calibrated results from SWAT fitted to the observed data in 2007-2010 with 0.77, 0.88, and 9.08 m3/s, and verified in 2011 with 0.25, 0.61, and 14.30 m3/s, respectively. The daily results from IFAS during a flood period in 2011 fitted to the observed data with 0.21, 0.39, and 34.32 m3/s. Both models showed applicable for efficient gate operation of the diversion canal from this watershed to the Nong Mamong District in Chai Nat Province.
The Relationships Between Factors of Quality of Life and Learning Motivation of University Students
Methee Klomduang,Sombat Tayraukham
The Social Sciences , 2013,
Abstract: The purposes of this study were to examine the relationships between factors of quality of life of University students and their learning motivation, to find out predictive variables of the students’ learning motivation, to analyze factors of the students’ quality of life as well as to regroup these variables and then to construct predictive equations of learning motivation of the students. The sample used in this study consisted of 1,300 Rajabhat Mahasarakham University students, obtained using the stratified random sampling technique. Data were collected using questionnaires on the quality of life with discriminating powers ranging 2.55-8.59 and reliabilities ranging 0.91-0.94 and a scale on learning motivation with discriminating powers ranging 2.56-7.02 and a reliability of 0.95. The collected data were analyzed using an exploratory factor analysis and stepwise multiple regression analysis. The results of the study were as follows: the variables, which could predict learning motivation of University students at the 0.01 level of significance included quality of life in terms of relationship with other people (D), quality of life in learning (A), quality of life in the services received from the university (E) and quality of life in terms of society with multiple correlation coefficient (R) of 0.708, an adjusted predictive coefficient (R2adj) of 0.497 and a Standard Error (SEest) of 0.318. For the results of factors analysis of the quality of life and regrouping the variables, seven factors were obtained and the factors were named in this order: social welfare (X1), the learner development process (X2), convenience and safety of the residence (X3), promoting commitment with other people (X4), the university’s utilities and materials to support learning (X5), the university’s health welfare and guidance services (X6) and creating learners’ human relationship (X7). The variables after factor analysis, which could predict University students’ learning motivation at the 0.01 level of significance included: factors in terms of creating learner’s human relationship (X7), social welfare (X1), promoting commitment with other people (X4), learner development process (X2) and the university’s utilities and materials to support learning (X5) with a multiple correlation coefficient of 0.707, an adjusted predictive coefficient (R2adj) of 0.496, a predicting power at 49.6%, a standard error of 7.9723 and constance of the predictive equations in the raw-score form of 13.270. The predictive equations could be constructed in a raw score form an a standardized score form as: the predictive equation in the raw-score form Y’ = 13.270 + 0.680X7 + 0.183X1 + 0.375X4 + 0.218X2 + 0.259X5, the predictive equation in a standardized score form Zy’ = 0.311Zx7 + 0.133Zx1 + 0.164Zx4 + 0.164Zx2 + 0.131Zx5.
生态学杂志 , 1995,
Abstract: ?
Stroke-Analysis Program for Searching Infarct/Penumbra Area from CT-Scan Images via Digital Image Processing Technique
Somchart Chokchaitam,Santichai Fueanggan,Sombat Muengtaweepongsa
Lecture Notes in Engineering and Computer Science , 2011,
Optimization of extracellular mannanase production from Penicillium oxalicum KUB-SN2-1 and application for hydrolysis property
Sudathip Titapoka Chantorn,Katesarin Buengsrisawat,Apinya Pokaseam,Tasanee Sombat
Songklanakarin Journal of Science and Technology , 2013,
Abstract: Effects of media composition, and physical properties on the production of crude mannanase by Penicillium oxalicumKUB-SN2-1 were investigated. P.oxalicum KUB-SN2-1 was propagated in a shaking incubator at 30°C with rotation speed of200 rpm of 7 days. The specific activity obtained during growth on robusta coffee residues (RCR) of 16.21 U/mg protein wasmuch higher than other carbon sources tested. For nitrogen sources, yeast extract (0.11 U/mg protein) and ammonium nitrate(0.09 U/mg protein) showed maximum specific activity. Hence, guar gum was the best inducer for producing mannanase (14U/mg protein). For evaluating the optimal concentration, the result showed that 1% guar gum, 0.5% yeast extract, 0.25%ammonium nitrate, and 0.25% RCR were the suitable sources of inducer, organic nitrogen, inorganic nitrogen, and carbon,respectively. Modified medium with initial culture pH of 5.0 at 30°C was optimum for mannanase production (53.77 U/ml for3 day). Reducing sugars were analyzed by dinitrosalicylic acid methods. The highest reducing sugar of 7517.82 g/mlwas obtained from copra meal hydrolysate after 30 h.
NAFLD fibrosis score: A prognostic predictor for mortality and liver complications among NAFLD patients
Sombat Treeprasertsuk,Einar Bj?rnsson,Felicity Enders,Sompongse Suwanwalaikorn
World Journal of Gastroenterology , 2013, DOI: 10.3748/wjg.v19.i8.1219
Abstract: AIM: To study whether the severity of liver fibrosis estimated by the nonalcoholic fatty liver disease (NAFLD) fibrosis score can predict all-cause mortality, cardiac complications, and/or liver complications of patients with NAFLD over long-term follow-up. METHODS: A cohort of well-characterized patients with NAFLD diagnosed during the period of 1980-2000 was identified through the Rochester Epidemiology Project. The NAFLD fibrosis score (NFS) was used to separate NAFLD patients with and without advanced liver fibrosis. We used the NFS score to classify the probability of fibrosis as < -1.5 for low probability, > -1.5 to < 0.67 for intermediate probability, and > 0.67 for high probability. Primary endpoints included all-cause death and cardiovascular- and/or liver-related mortality. From the 479 patients with NAFLD assessed, 302 patients (63%) greater than 18 years old were included. All patients were followed, and medical charts were reviewed until August 31, 2009 or the date when the first primary endpoint occurred. By using a standardized case record form, we recorded a detailed history and physical examination and the use of statins and metformin during the follow-up period. RESULTS: A total of 302/479 (63%) NAFLD patients (mean age: 47 ± 13 year) were included with a follow-up period of 12.0 ± 3.9 year. A low probability of advanced fibrosis (NFS < -1.5 at baseline) was found in 181 patients (60%), while an intermediate or high probability of advanced fibrosis (NSF > -1.5) was found in 121 patients (40%). At the end of the follow-up period, 55 patients (18%) developed primary endpoints. A total of 39 patients (13%) died during the follow-up. The leading causes of death were non-hepatic malignancy (n = 13/39; 33.3%), coronary heart disease (CHD) (n = 8/39; 20.5%), and liver-related mortality (n = 5/39; 12.8%). Thirty patients had new-onset CHD, whereas 8 of 30 patients (27%) died from CHD-related causes during the follow-up. In a multivariate analysis, a higher NFS at baseline and the presence of new-onset CHD were significantly predictive of death (OR = 2.6 and 9.2, respectively; P < 0.0001). Our study showed a significant, graded relationship between the NFS, as classified into 3 subgroups (low, intermediate and high probability of liver fibrosis), and the occurrence of primary endpoints. The use of metformin or simvastatin for at least 3 mo during the follow-up was associated with fewer deaths in patients with NAFLD (OR = 0.2 and 0.03, respectively; P < 0.05). Additionally, the rate of annual NFS change in patients with an intermediate or high p
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