Mahidol UniversityNakhonpathom

Engineering, Thailand

Mahidol UniversityNakhonpathom

Engineering, Thailand
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Hong S.A.,Mahidol UniversityNakhonpathom | Mongkolchati A.,Mahidol UniversityNakhonpathom | Chompikul J.,Mahidol UniversityNakhonpathom | Mo-Suwan L.,Prince of Songkla University | Choprapawon C.,Thailand Research Association for Child and Family Development
Journal of the Medical Association of Thailand | Year: 2016

Objective: Identify the difference of the nutritional status of Thai children from birth to 24 months of age using the national and international growth charts. Material and Method: The analytic sample was of 4,224 children from the Prospective Cohort Study of Thai Children (PCTC). Age-specific prevalence of malnutrition was estimated using the NCHS, WHO, and Thai growth charts. Results: Rapid growth faltering was found in both genders during the first two years, regardless of the reference, but the Thai charts reflected better Thai children. When using the Thai and NCHS charts, a steep fluctuation was observed in infancy, although the prevalence of wasting, underweight, and overweight between the references became narrower at 24 months. Meanwhile, the WHO standards identified a higher number of stunted children and showed a linear increasing trend of overweight with age, compared to the Thai reference. Conclusion: Although the Thai growth charts better reflect the Thai children, in consideration of a double burden of stunting and overweight in Thailand, the WHO standards can be used to identify Thai children at risk of stunting and overweight in the first two years of life. © 2016, Medical Association of Thailand. All rights reserved.

Jiamruangjarus P.,Mahidol UniversityNakhonpathom | Naenna T.,Mahidol UniversityNakhonpathom
Cogent Engineering | Year: 2016

Material handling equipment (MHE) is important for every industry because it has an effect on the productivity of manufacturing. Conveyor systems are presently one popular type of MHE. This paper presents an integration of the analytic network process (ANP) with the benefits, opportunities, costs and risk (BOCR) model in order to select the best conveyor system. The proposed model established a network with four merits, six strategies criteria, and twenty six sub-criteria with four alternatives (present, roller conveyor, chain conveyor, and monorail). The ANP is to determine the relative weights of an evaluative criteria and decision alternatives. Therefore, the final ranking of the alternatives are calculated by synthesizing the score of each alternative under BOCR. The results showed that the best alternative under all five methods is the chain conveyor. These research results can be easily applied, adapted and used to improve performance of selecting the conveyer system in small and medium enterprises through large industries. © 2016 The Author(s).

Kumjim S.,Mahidol UniversityNakhonpathom | Jirapongsananuruk O.,Mahidol University | Piboonpocanun S.,Mahidol UniversityNakhonpathom
Asian Pacific Journal of Allergy and Immunology | Year: 2016

Background: Seawater and freshwater shrimp are some of the most common causes of food allergy among children in Thailand. Tropomyosin has been reported as a major allergen for shrimp allergic populations around the world. Despite a high number of shrimp-allergic Thai children, however, it is unknown whether shrimp tropomyosin is a major cause of allergic reactions. Objectives: To clone and characterize tropomyosin of giant freshwater shrimp Macrobrachium rosenbergii (Mr) and determine whether this tropomyosin is a major cross-reactive allergen for Thai children with shrimp allergy. Methods: Recombinant shrimp Mr tropomyosin (Mac r1.0101) was expressed in yeast Pichia pastoris. Secondary structure composition of purified recombinant Mac r1.0101 was determined by Circular Dichroism. IgE reactivity was examined by immunoblot, direct binding ELISA and inhibition of IgE ELISA using serum from shrimp-allergic children. Results and Conclusion: The amino acid sequence of Mac r1.0101 showed 2 polymorphic amino acids (F44 and S45) indicating a variant of tropomyosin. Purified recombinant Mac r1.0101 obtained a nature-like α-helix structure which can be bound by serum-specific IgE. The binding affinity of serum-specific IgE to Mac r1.0101 based on the IC50 value was ~1.8 ng/ml. Ten of 13 shrimp-allergic Thai children had serum-specific IgE against Mac r1.0101, but at different levels. Results of the inhibition of specific IgE using Mac r1.0101 showed that 7 of the tested serum samples also had specific IgE against other shrimp allergens in addition to IgE against Mac r1.0101. Tropomyosin therefore appears to be a major cross-reactive allergen for Thai children who are allergic to both seawater and giant freshwater shrimp. © 2016, Allergy and Immunology Society of Thailand. All rights reserved.

Sarajit O.,Mahidol UniversityNakhonpathom | Nakhapakorn K.,Mahidol UniversityNakhonpathom | Jirakajohnkool S.,Thammasat UniversityPathumthani | Tienwong K.,Silapakorn UniversityNakhonpathom | Pansuwan A.,Silapakorn UniversityNakhonpathom
EnvironmentAsia | Year: 2015

The aims of this study were to apply the Geo-information technology for coastal vulnerability assessment of Phetchaburi coast, which depended on seasonal changed (by influence of Southwest monsoon and Northeast monsoon). The assessment uses a coastal vulnerability index (CVI), consists of a physical environment vulnerability index (PVI) and the socio-economic vulnerability index (SVI) with 9 variables; coastal slope, mean tidal ranges, average wave height, rates of coastal erosion, population density, land use, built-up, transportation and coastal protection measures. The results showed, the different during monsoon had an indecisive difference effect on mean tidal ranges, average wave height, and changes in the coastline. However, the monsoon had effected to sand sediment of the beach. That increased in the Southwest monsoon and decreased in the Northeast monsoon. The level of vulnerability of the coastal area was shown by a map of CVI, with high coastal vulnerability areas having a size of 4.6 square kilometers (10.89% of the coastal surveillance area), mainly in Pak-Thale, Bang-Keaw and Chao-Samran. The moderate and the low coastal vulnerability areas have size of 31.29 square kilometers and 6.97 square kilometers, respectively. The variables that influence the vulnerability are land use, slope, erosion rate and population density. © 2015 Thai Society of Higher Eduation Institutes on Environment

Dilokwanich S.,Mahidol UniversityNakhonPathom | Kaewsawang S.,Mahidol UniversityNakhonPathom | Savatdipap S.,Mahidol UniversityNakhonPathom | Iochawna J.,Mahidol UniversityNakhonPathom | Limganjanawat S.,Mahidol UniversityNakhonPathom
EnvironmentAsia | Year: 2015

During the past few decades, Thai women have learned how to extent their roles from a care taker of children and a household to natural resources and environmental protection and management in local and inter-regional communities. Due to the application of National Economic and Social Development Plans, rapid resource exploitation has brought in natural resource and environmental degradation all over the country threatening communal security. For this reason, there have been a number of emerging environmental leaders who want to correct directions of national development, especially Thai woman environmental leaders who are taking a successful role of environmental guardian in their communities. This research attempts to explore why they took leadership role in environment, how they work so successful as an environmental guardian, and what their next move is. During early 2013 till mid-2014, there are 28 Thai woman leaders who received the award of Thai Environmental Conservation Mother from the Faculty of Environment and Resource Studies, Mahidol University between 2004 and 2012. They were in-depth interviewed and collected data were preceded by content analysis. Their lessons learnt show that most leaders saved their communities’ environment and natural resources from the intervention of new development activities. Most of them had their parents as a good role model in environmental management who provide knowledge of morals and environmental ethics as a good basic of leadership while some shared their husband’s responsibility in the same matter. Significantly, teamwork is their working style with the assistance of public participation to hold teamwork and collaboration of the community. Almost all leaders had systematic working with talents of patience, gentleness and sensitivity. The working network also broadens their new information and knowledge between practitioners. In the same time, more than half of the leaders can prepare their successors from the younger generation who can continue environmental conservation of the community, while the rest cannot do it. This situation pushes some leaders find alternative succession process. © 2015, Thai Society of Higher Eduation Institutes on Environment. All rights reserved.

Sangthong C.,Mahidol UniversityNakhonpathom | Duangboobpha S.,Mahidol UniversityNakhonpathom | Prapagdee B.,Mahidol UniversityNakhonpathom
EnvironmentAsia | Year: 2015

A cadmium resistant rhizobacterium, Pseudomonas sp. PM2, was isolated from plant roots. It is highly resistant to cadmium toxicity. The minimum inhibitory concentrations of cadmium for Pseudomunas sp. PM2 is 2100 mg/L. Peeudomonas sp. PM2 produced high levels of sidenophore and rhamnolipid biosurfuctant in 74.88 μM of deferoxamine meiylate equivalents and 329.54 mg/L, respectively. It was able to remove cadmium ion in an aqueous solution by 69.84% at the initial cadmium ion concentration of 25 mg/L. Pseudomonas sp. PM2 significantln increased eadmium bioavailability in contaminated soil by increasing DTPA-extractable cadmium concentration or a biosvailable form of cadmium. The increase in cadmium bioavailability in soil helps to promote cadmium uptake by plants for cadmium phytoextraction. In addition, Pseudamonas sp. PM2 had no positive oe negative effects on seed germination and root elongation of Glycine max L. under the absence and presence of cadmium. Our findings suggest that Pseudomonas sp. PM2 could be useful in the further development of biological treatment of cadmium in contaminated water and soil. © 2015 Thai Society of Higher Eduation Institutes on Environment

Wongpaibool D.,Mahidol UniversityNakhonPathom | Rawang W.,Mahidol UniversityNakhonPathom | Supapongpichate R.,Mahidol UniversityNakhonPathom | Pichayapibool P.,Mahidol UniversityNakhonPathom
International Journal of Environmental and Science Education | Year: 2016

The purpose of this research was: 1.To investigate social context, environment, way of life and community culture. 2.To gather the views and opinions regarding environmental conservation and restoration. 3.To synthesize a process of environmental education communication based on community cultural activity area. 4.To evaluate the efficacy of the environmental education communication processes. This research uses Participatory Action Research (PAR) along with a Civil Society Forum. The results revealed that the environmental situation in the community was most likely changed from rural to urban and has environmental problems, there was the process of community cultural area (CCA) but with lack of local people participation. The local people needed to restore and conserve their environmental situation and way of life; of Thai - Mon culture for the next generation. The overall environmental education learning level and process of environmental education communication levels were located at moderate levels of 3.37 average with 0.64 standard deviation and at 3.20 average with 0.56 standard deviation respectively. Therefore, the element of the process of environmental education communication was as follows: Sender: the committee, the performers and organizers of Amphaeng Community cultural activity area. Message: community identity, community story, community problem, the needs of local people. Chanel: community cultural area activities. Receiver: local people. Impact: restoration and conservation of their environment, way of life, community biodiversity, and a better quantity of life. The evaluation of the efficacy of the environmental education communication processes were located at a high level of 4.60 in 6 projects established by local people. © 2016 Wongpaibool et al.

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