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Nakhon Si Thammarat, Thailand

Founded in 1992, Walailak University is a public university located in Tha Sala District, Nakhon Si Thammarat Province, Thailand. Although state funded, Walailak University is given a high level of autonomy, unusual among Thai public universities.The university was named after Her Royal Highness Princess Chulabhorn Walailak. Wikipedia.

Palipoch S.,Walailak University
African journal of traditional, complementary, and alternative medicines : AJTCAM / African Networks on Ethnomedicines | Year: 2013

Acute kidney injury (AKI) is the common clinical syndrome which is associated with increased morbidity and mortality. The severity extends from less to more advanced spectrums which link to biological, physical and chemical agents. Oxidative stress (OS)-related AKI has demonstrated the increasing of reactive oxygen species (ROS) and reactive nitrogen species (RNS) and the decreasing of endogenous antioxidants. Medicinal plants-derived antioxidants can be ameliorated oxidative stress-related AKI through reduction of lipid peroxidation (LPO) and enhancement of activities and levels of endogenous antioxidants. Therefore, medicinal plants are good sources of exogenous antioxidants which might be considered the important remedies to ameliorate pathological alterations in oxidative stress-related AKI. Source

Channuie P.,Walailak University
International Journal of Modern Physics D | Year: 2014

In light of BICEP2, we re-examine single field inflationary models in which the inflation is a composite state stemming from various four-dimensional strongly coupled theories. We study in the Einstein frame a set of cosmological parameters, the primordial spectral index ns and tensor-to-scalar ratio r, predicted by such models. We confront the predicted results with the joint Planck data, and with the recent BICEP2 data. We constrain the number of e-foldings for composite models of inflation in order to obtain a successful inflation. We find that the minimal composite inflationary model is fully consistent with the Planck data. However it is in tension with the recent BICEP2 data. The observables predicted by the glueball inflationary model can be consistent with both Planck and BICEP2 contours if a suitable number of e-foldings are chosen. Surprisingly, the super Yang-Mills inflationary prediction is significantly consistent with the Planck and BICEP2 observations. © 2014 World Scientific Publishing Company. Source

Lertcanawanichakul M.,Walailak University
International Journal of Pharma and Bio Sciences | Year: 2015

Emergence of drug resistance among Staphylococcus aureus to currently used antibiotics has made the search for novel bioactive compounds from natural and unexplored habitats a necessity. In this study, isolation, characterization and antimicrobial activity of an actinomycete strain isolated from air at Scientific and Technological Equipments Building, Walailak University, located in Southern Thailand. Eight strains were done and identified as Streptomyces spp. using 16S rDNA sequence analysis. Streptomyces lydicus A2 exhibited antibacterial activity against Gram positive bacteria, Gram negative bacteria. Partial characterization of the active substance (resistance to heat) showed that it would be of non-protein nature. The production of the active substance showed that the production occurs between the 4th and 7th day of fermentation. This will open the way to further investigations to demonstrate their potential importance in combating pathogenic bacteria, methicillin resistant S. aureus. Source

Various extreme events recorded over the world have been recognized as scientific-based evidence from possible climate change and variability. The incidence of increasing forest fires and intensive agricultural field burning in Chiangmai and Northern Thailand due to favor conditions may also due to a likely increase of droughts caused by the changing climate. Smog from biomass burning, particularly particulate matter (PM) seriously affects health and the environment. Lack and sparse of ground monitors may cause unreliability for warning information. Satellite remote sensing is now a promising technology for air quality prediction at ground level. This study was to investigate the statistical model for predicting PM concentration using satellite data. Aerosol optical depth (AOD) data were gathered from MODIS-Terra platform while hourly PM2.5 and PM10 data were collected from the Pollution Control Department. The relationship between AOD and hourly PM over Chiangmai was addressed by Model I-Simple linear regression and Model II-Multiple linear regression with ground-based meteorological data correction. The data used for the statistical analyses were from smog period in 2012 (January-April). Results revealed that AOD and hourly PM in Model I were positively correlated with the coefficient of determination (R2) of 0.22 and 0.21, respectively for PM2.5 and PM10. The relationship between AOD and hourly PM was improved significantly when correcting with relative humidity and temperature data. The model II gave R2 of 0.77 and 0.71, respectively for PM2 5 and PM10. To investigate the validity of model, the regression equation obtained from Model II was then applied with smog data over Chiangmai in March 2007. The model performed reasonably with R2 of 0.74. The model applications would provide supplementary data to other areas with similar conditions and without air quality monitoring stations, and reduce false warning the level of air pollution associated with smog from intensive biomass burning. However, further investigation in different locations should be conducted to confirm the applicability of the model. Source

Chimsung N.,Walailak University
Songklanakarin Journal of Science and Technology | Year: 2014

Maturation diets for shrimp ideally comprise excellent digestible protein, essential fatty acids, and cholesterol and chemo-attractant properties which are found in natural food sources in the shrimp habitat. Fresh feeds typically including polychaete worms, mollusks and crustaceans have been extensively used for shrimp broodstock. However, their nutritional value can vary with species, season of harvest and life stage. Alternatively, compound diets have been formulated based on the nutritional profile of fresh feeds have being produced in a semi-moist diet and dried pellets. But, substitution of fresh feeds by compound diets is scarce due to lack of information on the quantitative dietary requirements of shrimp broodstock. For most Penaeus monodon hatcheries, good reproductive performance was obtained when shrimp broodstock were fed a mixture of fresh feeds and compound feeds. Source

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