Loei, Thailand

Loei Rajabhat University

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Loei, Thailand
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Padee P.,Mahasarakham University | Nualkaew S.,Mahasarakham University | Talubmook C.,Mahasarakham University | Sakuljaitrong S.,Loei Rajabhat University
Journal of Ethnopharmacology | Year: 2010

Ethnopharmacological relevance: Pseuderanthemum palatiferum (Nees) Radlk (Acanthaceae) was first found in Northern Vietnam and expanded throughout the country including the Mekong Delta region. The leaves of this plant are recommended in folk medicine of Vietnam and Thailand for promoting and treating various diseases including hypertension, diarrhea, arthritis, hemorrhoids, stomachache, tumors, colitis, bleeding, wounds, constipation, flu, colon cancer, nephritis, and diabetes. Aim of the study: The hypoglycemic effect of an 80% ethanolic leaf extract from the leaves of Pseuderanthemum palatiferum (PPE) was investigated in normal and streptozotocin (STZ)-induced diabetic rats. Materials and methods: The PPE was administered daily and orally to the rats at the doses of 250, 500, and 1000 mg/kg body weight (b.w.) for 14 days. The levels of fasting plasma glucose (FPG), serum insulin, and biochemical data such as blood urea nitrogen (BUN), triglycerides (TG), total cholesterol (TC), high-density lipoprotein (HDL), low-density lipoprotein (LDL), and alkaline phosphatase (ALP) were evaluated. The hypoglycemic effect of PPE was compared to that of the known anti-diabetic drug glibenclamide (0.25 mg/kg b.w.). Results: FPG and serum insulin in normal rats were not significantly different from the control and test groups in all dosages. The treated diabetic rats which had received PPE and glibenclamide showed significantly (p< 0.05) decreased FPG and increased serum insulin levels at the end of the experiment. The hypoglycemic effect of PPE at the dose of 250 mg/kg b.w. was significantly (p< 0.05) more effective than that of glibenclamide. The serum insulin in PPE fed diabetic rats at the dose of 250 mg/kg b.w. was not different from those which had received glibenclamide, and this dose was significantly (p< 0.05) more effective than PPE at the doses of 500 and 1000 mg/kg b.w. while PPE increased HDL and decreased TC, TG, LDL, BUN and ALP in the diabetic rats. Conclusions: PPE has a beneficial effect in hyperglycemic rats and may prevent the complication of diabetes. © 2010 Elsevier Ireland Ltd.


Pong-Inwong C.,Loei Rajabhat University | Kaewmak K.,Loei Rajabhat University
2016 2nd IEEE International Conference on Computer and Communications, ICCC 2016 - Proceedings | Year: 2017

Teaching evaluation system is widely used to assess and investigate the education quality. Presently, sentiment analysis contributes for student sentiment polarity detection in teaching evaluation which collects the feedback messages. Text mining techniques are broadly extended to classify the effective improvement of the sentiment polarity analysis. Furthermore, the feedback messages from opened-end questions which stored in teaching evaluation system are selected for the classification. In addition, various methods used for classification in the experiment are Naïve Bayes, ID3, J48 Decision tree. In this paper, reducing the feature in data preprocessing stage and teaching sentiment analysis using voting ensemble method of machine learning are proposed and compared with existing typical machine learning for sentiment analysis. The experimental results show that the voting ensemble learning integrate with Chi-Square feature selection exhibits higher than typical classifiers. © 2016 IEEE.


Jugdaohsingh R.,MRC Human Nutrition Research | Jugdaohsingh R.,King's College London | Sripanyakorn S.,King's College London | Sripanyakorn S.,Loei Rajabhat University | Powell J.J.,MRC Human Nutrition Research
British Journal of Nutrition | Year: 2013

Host factors influencing the absorption and excretion of Si are poorly understood, although previous murine and human studies have suggested that age, sex and oestrogen status may affect Si metabolism and thus function. Here, serum and urine samples were collected from twenty-six healthy adults at baseline and over a 6Â h period following ingestion of 17·4Â mg Si (orthosilicic acid) and analysed by inductively coupled plasma optical emission spectrometry. Fasting baseline serum and urinary Si concentrations were marginally higher in older adults (51-66 years old) compared with young adults (20-47 years old); however, there was no difference in the absorption of Si into serum (overall profile, rate of Si appearance, peak concentration and time to peak) between the different adult groups. The rate of elimination of Si from serum did not significantly differ with age or sex, although serum concentration at 6Â h was higher in older adults and significantly correlated with age (r 0·5; P=Â 0·01). There were, however, no significant differences in the excretion of Si into urine (a proxy for overall uptake) between the groups, averaging approximately 45Â %. Oestradiol levels did not correlate with any of the above measures of Si. Thus, overall, host age and sex did not appear to markedly influence Si absorption or excretion in human adults and no correlations were found with serum oestradiol status. The marginally higher baseline and 6Â h post-dose Si levels in older adults may reflect modestly impaired renal function and/or the loss of Si from connective tissues with ageing. Copyright © The Authors 2013.


Chockchaisawasdee S.,Loei Rajabhat University | Poosaran N.,Chiang Mai University
Journal of the Science of Food and Agriculture | Year: 2013

Background: Banana is one of the important crops native to tropical Southeast Asia. Since overproduction frequently leads to excessive waste of produce, alternative uses are continuously sought in order to utilise fruits at all stages of maturity. The aim of this study was to investigate the production of isomaltooligosaccharides (IMOs) from banana flour. Results: Banana slurries liquefied by Termamyl SC and saccharified by either Fungamyl 800 L or barley β-amylase were used for IMO synthesis by Transglucosidase L. After 12 h of transglucosylation, maximum IMO yields of 76.67 ± 2.71 and 70.74 ± 4.09 g L-1 respectively were achieved.Although the yieldswere comparable, the IMOprofiles obtained through the use of the two saccharification enzymes were different. Glucose andmaltose were removed by 10 g L-1 bakers' yeast fermentation for 12 h. Regarding total sugars, the final IMO mixture was composed of 53% isomaltotriose, 21% isomaltotetraose and 26% maltooligoheptaose and larger oligomers. Conclusion: Banana flour could be used as a potential rawmaterial for IMO synthesis. © 2012 Society of Chemical Industry.


Kakchapati S.,Prince of Songkla University | Ardkaew J.,Loei Rajabhat University
Journal of Research in Health Sciences | Year: 2011

Background: Malaria is a major cause of morbidity and mortality in Nepal. The magnitude of malaria across the country is alarming and varies with location. Therefore, the present study aimed to model malaria incidence rates during 1998 to 2009 in Nepal. Methods: Data for the study were obtained from Health Management Information System (HMIS), Ministry of Public Health. A negative binomial model was used to fit malaria incidence rates as a function of year and location and provided a good fit, as indicated by residual plots. Results: In total, 83,345 cases of malaria were reported from 1998 to 2009. The mean incidence rate was 0.30 per 1000 population. The models show trends and spatial variations in disease incidence. There was decreasing trend in the incidence rates of malaria (1998-2004), followed by a more moderate upward trend until 2008, when the rate decreases again. Zero malaria incidences occurred in six districts including Humla, Jajarkot, Manang, Kathmandu, Bhakthapur and Solukhumbu districts for over twelve years. Higher incidence occurred in Kanchanpur, Kailali, Bardiya, Kavre, and Jhapa districts for the study period. Conclusion: Malaria is still a public health problem in Nepal. This study showed a steady decreasing trend in malaria incidence but the numbers of cases are still very high. Higher rates were observed in Terai Region and border areas. These findings highlight the need for more systematic and effective malaria control measures on malaria burden areas of Nepal.


Pimpabute N.,Khon Kaen University | Burinprakhon T.,Khon Kaen University | Somkhunthot W.,Loei Rajabhat University
Optica Applicata | Year: 2011

Gallium phosphide (GaP) thin film was prepared by an asymmetric bipolar pulsed-dc magnetron sputtering technique onto glass substrate at room temperature in an Ar atmosphere. A compacted GaP powder was used as a target. The X-ray diffraction patterns show that the film is amorphous. The transmittance of the film was measured in the incident photon wavelength range of 300-2000 nm. The film's refractive index, thickness and absorption coefficient as a function of wavelength were determined by using Swanepoel's method. The deduced absorption data indicate that the optical transition in the film is dominated by the indirect type. The corresponding energy of 1.51 eV was obtained for the 563±16 nm thin film.


Sukprasert S.,Loei Rajabhat University
International Journal of Interdisciplinary Environmental Studies | Year: 2015

Community capital plays a large role in herb conservation. Our objectives were to study the conditions of herbal plant diversity in the Na-o municipality of Loei, Thailand, to investigate community capital characteristics and herbal utilization, to explore directions for conserving herbal plant diversity by applying community capitals, and to evaluate directions for conservation. A participatory action research method was applied with qualitative multitechniques of observation, focus group discussions, interviews, and workshops. The target group was seventy-two key informants. Data were analyzed by content analysis. The results found that community contexts were suitable for natural herbs and plants. Herbs were categorized as perennial, annual, water, climbing plants, and kitchen vegetables in home gardens. Community capital included: a natural resource capital of soils, mountains, forests, and reservoirs; a social capital of unity and mutual help; a cultural capital of local religious traditions; an intellectual and local wisdom capital of resource management and ancestral indigenous knowledge. The community exemplified herbal values and various utilizations. Directions for conservation included the determination of utilization, rehabilitation, and development. They were: increased planting, more learning resources, and knowledge dissemination. Evaluation of the directions indicated that the community was satisfied with the herb values leaflet and exchange of vegetation. All aspects of herbal use were worth conserving. © 2015 Common Ground, Saowapa Sukprasert, All Rights Reserved.


Pruksa S.,Loei Rajabhat University | Siripinyanond A.,Mahidol University | Powell J.J.,MRC Human Nutrition Research | Jugdaohsingh R.,MRC Human Nutrition Research
Nutrition and Metabolism | Year: 2014

Background: Accumulating evidence suggests a role for silicon in optimal connective tissue health. Further proof of its importance/essentiality may be provided by studies involving imposed depletion followed by 29Si challenge to estimate metabolic balance. Prior to conducting these expensive studies, we first established the variance of estimating normal Si excretion versus intake using a single oral dose of typical dietary Si, orthosilicic acid. Methods. Healthy volunteers were recruited from Loei Rajabhat University, separated into two matched groups (three males and three females/group) and maintained on a standardized diet for the three study days. One group ingested 500 ml water containing orthosilicic acid (28.9 mg Si) and the other group received 500 ml water alone, all on a fasted stomach. Blood samples and total urine and faeces were collected over the 48 h post-dose period and 24 h before-hand (baseline) and analysed for silicon by inductively coupled plasma optical emission spectrometry. Results: Serum Si analysis confirmed the ready absorption of silicon from the orthosilicic acid solution. Mean total urinary and faecal Si excretions over the 24 h post-dose period accounted for 57 ± 9.5% and 39 ± 9.4% of the ingested dose, respectively. Thus in total 96.3 ± 5.8% of the ingested dose was recovered in faecal plus urinary excretions over the 24 h post-dose period. Conclusions: We report that in healthy subjects (presumably in Si balance), the ingestion of a soluble dose of dietary Si results in the same quantity (within analytical error) being excreted within 24 h. It is currently not known if this all originated from the dose solution or if there was some exchange with the body Si pool but, given the low variance in these silicon balance data, isotopic studies are now merited. © 2014 Pruksa et al.; licensee BioMed Central Ltd.


Ardkaew J.,Loei Rajabhat University | Tongkumchum P.,Prince of Songkla University
Asia-Pacific Journal of Public Health | Year: 2011

This study aims to identify the incidence patterns of the most common infectious diseases, including acute diarrhea, pyrexia of unknown origin, hemorrhagic conjunctivitis, and pneumonia, in the 7 provinces of northeastern Thailand, based on individual hospital case records of infectious disease routinely reported from 1999 to 2004. Log-linear regression analysis with age-group, season, and district as factors was used, with data from all 4 diseases as outcomes combined into 1 model. Results confirmed that the highest incidence of each infectious disease occurred in children aged less than 5 years of age, with particularly high rates for diarrhea. In addition, the burden of pyrexia of unknown origin was found to be lower in districts bordering Laos, and the incidence rates were higher from April to June in 1999-2001 and 2004 and from July to September in 2002-2003. Higher incidence rates also occurred in most rural districts of Loei and Udon Thani provinces. © 2011 Asia-Pacific Academic Consortium for Public Health.


Pothi N.,Loei Rajabhat University
Advanced Materials Research | Year: 2014

This paper presents a design of a one-degree-of-freedom haptic interface system with an aim to investigate control of the system. The system comprised master devices, a system interacting with a user, and slave devices, a system interacting with environments. Both sets of devices were coupled with a gripper, which was designed in a shape of a cantilever beam, to measure force, and a DC motor was employed to drive precision ball screws, which were attached to the gripper, so as to create linear motion. In addition, an encoder was installed so as to investigate motion of the gripper, and the analysis results were employed for a design of a controller, based on the P, PI, PD, and PID type. The aim of this is to provide an operator with tactile sensing through control of the master devices while the slave devices were in contact with an object. The simulation results showed that the stiffness of an object affects stability of the system with a designed controller, causing, limitation of operation, that is, the system was stable when stiffness of the object was less than 43.3 kN/m, and the operator obtained a good response of positions and resistance while contacting with an object as though the operator has direct interaction with such an object. © (2014) Trans Tech Publications, Switzerland.

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