Mahidol UniversityNakhon Pathom

Thailand

Mahidol UniversityNakhon Pathom

Thailand
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Kansuntisukmongkol K.,Mahidol UniversityNakhon Pathom
Kasetsart Journal of Social Sciences | Year: 2017

Major components within the philosophy of a sufficiency economy include moderation, prudence, and self-immunity together with knowledge and morality. These components were proposed to safeguard local communities from adverse changes and crises. Climatic crises due to global warming can impact upon local agricultural production and consumption systems. Yet, it is still questionable whether communities following the sufficiency economy philosophy can cope with climate change. The objective of this research was to study the coping and adaptive capacity to climate change of local agricultural communities following the sufficiency economy philosophy and to analyze the success factors of adaptation to climate change. The research found five adaptive strategies leading to a resilient livelihood: (1) self-evaluation, (2) diversity dependency, (3) storage and reserve, (4) cooperation, and (5) mobility over space and time. These strategies help to reduce exposure and sensitivity, while increasing adaptive capacity to climate change with the aims of sustainability and adaptation for survival, and protecting natural resource bases for food and settlement security. Moderation, prudence, and self-immunity are critical success factors of adaptation measures, whereas local ecological knowledge with morality is a core enabling factor for adapting to climate change. These factors can be applied in community-based climate change adaptation in the National Adaptation Plan. © 2016 Kasetsart University


Singhato A.,Burapha UniversityChonburi | Banjong O.,Mahidol UniversityNakhon Pathom | Charoonruk G.,Mahidol UniversityNakhon Pathom
Journal of Ethnic Foods | Year: 2017

Background Inadequate calcium intake is the most chronic problem commonly found in Thai population that affects the health status throughout their life. Food fortification has been proven to be effective in promoting sufficient nutrient consumption according to the recommended daily intake. Hence, offering fortified food which is familiar and acceptable to people based on their tradition, ethnic, and cultural norms will help them to easily accept as well as being satisfied with the developed fortified food recipe, leading to the improved household food security. Methods This report was a quasi-study aimed to develop effective and acceptable educational media modules (educational videos) on a calcium-fortified Thai snack, a brown rice crispy golden curl, Thong Pub. The effectiveness of the developed educational media modules were evaluated by 50 participants who completed the self-administered questionnaires with designated knowledge scores before and after learning from the media modules. Results Results indicated most participants significantly improved their knowledge on calcium-fortified Thong Pub practice. In addition, the developed educational media modules were deemed satisfactory and acceptable by participants. Conclusion In conclusion, the developed media animation modules are effective and acceptable for educating people on the cooking methods of calcium-fortified Thongpub. © 2017 Korea Food Research Institute


Bunyakul N.,Mahidol UniversityNakhon Pathom | Promptmas C.,Mahidol UniversityNakhon Pathom | Baeumner A.J.,Cornell University | Baeumner A.J.,University of Regensburg
Analytical and Bioanalytical Chemistry | Year: 2015

Sample preparation and processing steps are the most critical assay aspects that require our attention in the development of diagnostic devices for analytes present in complex matrices. In the best scenarios, diagnostic devices should use only simple sample processing. We have therefore investigated minimal preparation of stool samples and their effect on our sensitive microfluidic immunosensor for the detection of cholera toxin. This biosensor was previously developed and tested in buffer solutions only, using either fluorescence or electrochemical detection strategies. The microfluidic devices were made from polydimethylsiloxane using soft lithography and silicon templates. Cholera toxin subunit B (CTB)-specific antibodies immobilized onto superparamagnetic beads and ganglioside GM1-containing liposomes were used for CTB recognition in the detection system. Quantification of CTB was tested by spiking it in human stool samples. Here, optimal minimal sample processing steps, including filtration and centrifugation, were optimized using a microtiter plate assay owing to its high-throughput capabilities. Subsequently, it was transferred to the microfluidic systems, enhancing the diagnostic characteristic of the biosensor. It was found that the debris removal obtained through simple centrifugation resulted in an acceptable removal of matrix effects for the fluorescence format, reaching a limit of detection of only 9.0 ng/mL. However, the electron transfer in the electrochemical format was slightly negatively affected (limit of detection of 31.7 ng/mL). Subsequently, cross-reactivity using the heat-labile Escherichia coli toxin was investigated using the electrochemical microfluidic immunosensors and was determined to be negligible. With minimal sample preparation required, these microfluidic liposome-based systems have demonstrated excellent analytical performance in a complex matrix and will thus be applicable to other sample matrices. © 2014 Springer-Verlag Berlin Heidelberg.


Chansirinukor W.,Mahidol UniversityNakhon Pathom
Journal of the Medical Association of Thailand | Year: 2015

Objective: To conduct the cross-cultural adaptation of the Functional Rating Index (FRI) and to test the reliability and validity of the Thai version of FRI (Thai FRI). Material and Method: The cross-cultural adaptation process was used to develop the Thai FRI. The two groups of patients comprised low back pain (LBP) and neck pain (NP). Each patient was asked to complete the questionnaires twice: at the first and second visits. The patients with LBP completed the Thai FRI, Roland-Morris Disability, modified Oswestry Low Back Pain Disability and multi-level Roland-Morris Disability, while the patients with NP completed the Thai FRI and Thai Neck Disability Index. Each patient was also asked to rate a Global Perceived Effect Scale at the second visit. Reliability and crosssectional construct validity of the Thai FRI were evaluated. Minimal detectable change (MDC95%) was calculated. Results: The FRI was cross-culturally adapted to Thai and the adapted version was validated. In total, 161 patients with LBP and 84 patients with NP completed the questionnaires. Cronbach’s alpha for the Thai FRI equaled 0.86 for LBP and 0.83 for NP, ICC2,1 equaled 0.82 for LBP and 0.89 for NP, correlations between the Thai FRI and other questionnaires ranged from 0.68 to 0.78 for both groups. The MDC95% equaled 2.5 for LBP and 2.3 for NP. Conclusion: The Thai FRI was developed and validated. Its measurement properties demonstrated acceptable internal consistency, good test-retest reliability and moderate to high cross-sectional construct validity. © 2015, Medical Association of Thailand. All rights reserved.


Wongthanate J.,Mahidol UniversityNakhon Pathom | Chinnacotpong K.,Mahidol UniversityNakhon Pathom
Environmental Engineering Research | Year: 2015

Biohydrogen production from food waste via dark fermentation was conducted by using mixed culture under various environmental conditions (initial pH, initial F/M ratio, initial ferrous iron (Fe2+), and temperature condition) in batch reactor. The results revealed that the maximum hydrogen yield of 46.19 mL H2/g CODadd was achieved at the optimal conditions (initial pH 8.0, initial F/M ratio 4.0, initial iron concentration 100 mg FeSO4/L and thermophilic condition (55±1°C)). Furthermore, major volatile fatty acid (VFA) productions of butyrate (765.66 mg/L) and acetate (324.69 mg/L) were detected and COD removal efficiency was detected at 66.00%. Therefore, these optimal conditions could be recommended to operate a system. © 2015 Korean Society of Environmental Engineers.


Suvanjumrat C.,Mahidol UniversityNakhon Pathom | Rugsaj R.,Mahidol UniversityNakhon Pathom
Engineering Journal | Year: 2016

This research aimed to study corrosion behavior and evaluated lifetime of the metal sheet cladding and roofing when exposed to actual usage environment using electrochemical impedance spectroscopy (EIS) test method. The sample plates were galvanized steel grade 550 and thickness of 0.6 mm which was coated with 55% of Al-Zn and a polyvinylidene fluoride layer which were prepared for metal sheet cladding and roofing of Wang-Noi combined cycle power plant in Phra Nakhon Si Ayutthaya province of Thailand. The specimens were tested under wet-dry cyclic condition by immersing in the simulated acid rain solution for an hour, then the specimen was removed from the solution and allowed to dry in open air environment with exposing to sunlight for 7 hours a day. The wet-dry cyclic treatment was repeated 3 times a day which was considered as the severe usage condition therefore the 3 wet-dry cycles might lead to extreme corrosion due to raining about 3 times a day. The EIS was used to evaluate the corrosion rate of specimens after the wet-dry cyclic treatment. Analysis results were expressed in Bode and Nyquist plot and used to calculate for corrosion current by using Stern-Garry equation which was used to calculate corrosion rate by using Faraday’s law. The first order polynomial regression was appropriate to estimate corrosion rate beyond the real time usage of the metal sheet, and total mass loss over time was estimated by integrating the polynomial regression model to obtain the governing equation of the total mass loss of the cladding and roofing sheet in the usage environment. The evaluated mass loss over 20 years of usage under severe condition was estimated which had the maximum penetration of 1.04004 milli-inch and could be converted into penetrating thickness of 26.41 μm. © 2016, Chulalongkorn University 1. All right reserved.


Chantanachai T.,Mahidol UniversityNakhon Pathom | Pichaiyongwongdee S.,Mahidol UniversityNakhon Pathom | Jalayondeja C.,Mahidol UniversityNakhon Pathom
Journal of the Medical Association of Thailand | Year: 2014

Objective: To examine the timed up and go (TUG) and tandem walk test (TWT) as fall prediction assessments in Thai elderly. Material and Method: Elderly subjects aged between 60 and 86 years and living in Nakhonpathom and Samutsakhon provinces were classified as fallers and non-fallers by self-report in the past six months. The TUG and TWT were used to predict falls. The optimal cutoff score and validity indexes were determined by plotting the receiver operating characteristic (ROC) curve and crosstabs analysis. Results: One hundred and sixty-one elderly subjects were classified as fallers (7 males and 43 females) and non-fallers (24 males and 87 females). The area under the curve (AUC) of ROC were 0.62 (95% CI = 0.59, 0.76; p = 0.0001) for TUG and 0.605 (95% CI = 0.514, 0.696; p = 0.033) for TWT error score. The cutoff scores were 10.5 seconds for TUG (74% sensitivity and 57.7% specificity) and five scores for TWT error (62% sensitivity and 55% specificity). Conclusion: TUG and TWT error were useful tools to explain faller status in Thai community-dwelling for the elderly. TWT time was not sensitive enough to detect the elders who were at risk of falls. © 2014, Medical Association of Thailand. All rights reserved.


Lekskulchai R.,Mahidol UniversityNakhon Pathom | Kadli S.,Mahidol UniversityNakhon Pathom
Journal of the Medical Association of Thailand | Year: 2015

Objective: To investigate the concurrent validity of the Pediatric Clinical Test of Sensory Interaction for Balance (P-CTSIB), to quantify anterior-posterior sway and movement strategies using a motion analysis system as the gold standard. Material and Method: Protocol of the six conditions of P-CTSIB was used. For each condition, data were simultaneously collected from the standard measure and a motion analysis system and analyzed using Intraclass Correlation Coefficients and validity indexes. Results: Seventeen children with a mean age of 9.34 years (SD = 1.61) performed the test. For anterior-posterior sway data, highly significant agreements were found between the two measurement systems (ICC (2,1) = 0.945-0.986, p<0.05). Sensitivities of the standard measure to detect immature movement strategy varied from 62.96 to 75.71%, while specificities ranged between 68.12 and 97.22%. Positive and negative predictive values ranged from 46.43 to 94.74%. Conclusion: The standard protocol of P-CTSIB has strong concurrent validity to measure anterior-posterior sway and acceptable levels of validity indexes to detect immature movement strategy, in addition to being a portable and simple clinical tool for objective assessment of standing balance in children. © 2015, Medical Association of Thailand. All rights reserved.


Prasomsri J.,Mahidol UniversityNakhon Pathom | Jalayondeja C.,Mahidol UniversityNakhon Pathom | Bovonsunthonchai S.,Mahidol UniversityNakhon Pathom | Khemthong S.,Mahidol UniversityNakhon Pathom
Journal of the Medical Association of Thailand | Year: 2014

Objective: To compare muscle strength, balance, walking and stair climbing abilities among individuals after chronic stroke with or without mental health problems; to describe their physiological response after stress stimulation. Material and Method: Subjects who had their first stroke more than one year ago were classified for mental health problems according to the Depression Anxiety Stress Scale-21. Lower extremity muscle strength of the quadriceps and plantar flexors, was measured by dynamometer. Balance and walking performance was measured by the Berg Balance Scale (BBS), 10-m walk test and timing of stair climbing. Community participation and spiritual well-being were measured. The physiological response of stress stimulation was assessed by the long stress test protocol of the biofeedback device. Results: Forty-five subjects with chronic stroke aged 40-80 years were grouped by with (n = 25) and without mental health problems (n = 20). Significant differences were found in quadriceps muscle strength, BBS, walking and stair climbing speed, community participation and spiritual well-being between two groups. In the stress stimulus phase, the electromyography and heart rate variability demonstrated significant difference between those with and without stress. Conclusion: Individuals with chronic stroke with mental health problems demonstrated decreased quadriceps muscle strength, balance and locomotor performances. © 2014, Medical Association of Thailand. All rights reserved.


Jalayondeja W.,Mahidol UniversityNakhon Pathom | Kraingchieocharn S.,Taksin Hospital
Journal of the Medical Association of Thailand | Year: 2015

Objective: The purposes of this study were to 1) quantify trunk endurance times according to subjects’ age and sex; and 2) identify factors affecting the endurance times. Materials and Method: Endurance times of sedentary workers aged 20-49 years were determined by an extensor endurance, a flexor endurance, and right and left side bridge (trunk lateral flexor) tests. Each test was performed once in random order with a resting period of 10 minutes between tests. Results: Of 137 workers, Two-way analysis of variance indicated that age had no effect on these 4 isometric trunk endurance tests. Sex had an effect on the extensor endurance test, and right and left side bridge tests. Females had longer endurance times than males for the trunk extensor muscle, whereas males had longer endurance times than females for right and left lateral flexor trunk muscles. Low negative but significant Pearson’s correlations (r = -0.233 to -0.377, p = 0.047 to 0.001) were found between extensor endurance times vs. body weight and abdominal skinfold thickness in both sexes. Only in males, both right and left side bridge endurance times correlated with abdominal skinfold thickness (r = -0.296 and r = -0.382, respectively, p<0.05 both). Conclusion: Sex, weight and abdominal skinfold thickness factors should be considered when trunk muscle endurance is evaluated. © 2015, Medical Association of Thailand. All rights reserved.

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