bluuebunny/crossref_metadata_2025_split huggingface dataset:
The effect of disking technique on proximal caries of primary upper incisors in tribal preschool children attending child development Centers of Mae Fah Luang district, and Doi Tung development project, Chiang Rai
Authors:   , Thanaboonyang Niwat 
Published: September 2023

Aim: To evaluate the effect of disking technique and resin modified glass ionomer cement (RMGI) restoration on proximal caries of primary upper incisors in tribal preschool children, aged 3-5 years, attending child development centers of Doi Tung Development Project, Chiang Rai. Methods: Twenty tribal preschool children were enrolled in this match-paired design study. Twenty-six proximal carious surfaces were randomized for RMGI restoration (control group), and 26 proximal carious surfaces were randomized for disking technique (experimental group). Fluoride varnish was applied in both groups after treatment. At 6-month interval, the treatment success was evaluated including retention of restoration, marginal integrity, no progression of caries and no periapical pathology. Fisher’s exact test was used for analysis. Statistical significance was set at p<0.05. Results: After 6 months, 22 (85.0%) RMGI restorations still survived, and 25 (96%) RMGI restorations revealed normal periapical area. In disking group, no caries progression was found among the 24 surfaces (92%), all of disking teeth (100%) revealed normal periapical area. There was no statistically significant difference in clinical and radiographic outcomes between these methods (p=1.000). Conclusion: In proximal caries management of primary upper incisors limited to dentin outer third and dentin middle third by RMGI restoration and disking technique, no statistically significant difference was found in clinical and radiographic outcomes at 6-month interval.
Preparation of alginate capsule using two coaxial glass-tube
Authors:   , Watchanung Panida 
Published: September 2023

TEMPO-Oxidized bacterial cellulose (TOBC) were obtained using TEMPO-mediated oxidation (TOBC) to produce carboxylate groups on bacterial cellulose surfaces. TOBC had lower crystallinity but better aqueous dispersion than bacterial cellulose. TOBC was used as a reinforcement agent for production alginate capsules. The alginate capsules for entrapping rice bran oil were made via a coaxial-glass tube. The factors that influenced on the shape and production efficiency of capsules were the gap between tube tip and the Ca2+ ions bath and the viscosity of shell solution. However, these factors had no effect on the size and shell thickness of capsules. Increasing of TOBC content enhanced the turbidity and compression strength of shell and gave smoother surface. The TOBC-alginate film was fabricated to easier characterization the shell property. More TOBC content can decrease the shrinkage of films, increase mechanical property and oxygen transmission rate, but had no effect on thermal and water vapor transmission rate. The carboxyl group of TOBC can participate crosslinking with Ca2+ and act as the structural construction of the alginate.
Simulation of water effect on biodiesel production using waste cooking oil via ester-transesterification in a reactive distillation column
Authors:   , Anantapinitwatna Ajala 
Published: September 2023

This research investigated the effect of water content in waste cooking oil (WCO) on the performance of a reactive distillation column for biodiesel production via ester-transesterification. A mixture of triolein and oleic acid was used as a WCO model compound. Amberlyst-15 was used to catalyze esterification while CaO was used for transesterification. From Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetic model taking into account water absorption for esterification of oleic acid (FFA), biodiesel yield was decreased with increasing of water content in WCO feedstocks. On the other hand, the initial rate of transesterification was increased with increase of amount of water in WCO feedstocks in the range of 0-5%wt. However, when biodiesel yield reached the maximum value of 30-40%, saponification as a side reaction became significant and the emulsion phase of feedstocks was present, resulting in significant decrease in biodiesel yield. Therefore, the water contaminated in feedstocks should be avoided because of the presence of saponification even when using heterogeneous CaO catalyst for biodiesel production. Interestingly, hybridized reactive distillation can handle the feedstocks with the presence of water in the range of 0-8%wt commonly found in most WCO sources. It was found that the water was vaporized to the top of the column and did not flow down to the transesterification section. The hybridized reactive distillation can produce 97% biodiesel yield with 96.5% biodiesel purity according to EN14214 standard with the use of total stages of 26, reflux ratio of 0.1 and reboiler duty of 50-128 kW for the WCO feed of 1 kmol/h
Prevalence and factors associated with safe sex behaviors among adolescent vocational students in Nakhon Ratchasima Province, Thailand
Authors:   , Chaumaroeng Maneebongkot 
Published: September 2023

Background: Premature sexual intercourse among adolescent can be linked to HIV and sexual transmitted diseases and unintended pregnancy. This study aimed to determine the prevalence and factors associated with safe sex behaviors among adolescent vocational students in Nakhn Ractchasima province, Thailand.

Methods: A cross-sectional analytical study(n=332) was conducted from August-October 2018 by using self-administered questionnaire. Bivariate (Chi-square test) and multivariate analysis ( logistic regression) were performed to identified the factors associated with safe sex behaviors among adolescent vocational students in Nakhon Ratchasima province, Thailand.

Results: finding revealed that the participants were male 57.8% and female 42.2%with an average age of 16.80 years (±1.7). Approximately 60.% of male and 50% of female had experience of sexual intercourse , with their first experience of sexual intercourse at the average age of 15 years old. Most respondents 63.1 % used a condom and 63.6% used contraception in their latest sexual intercourse. About 41.9% consumed alcohol and 15% was due to substance abused. Sexual intercourse among adolescents vocational students were significantly associated with knowledge of contraception (OR = 0.298, 95%CI= 0.47 -0.57), Positive attitude towards reproductive health (OR=0.165,95%CI= 3.32-6.71), with low risk behavior (OR = 0.45, 95%CI= 0.219-0.911), and high risk behaviors (OR = 0.24, 95%CI= 0.09-0.58). Contraceptive used in the latest sexual intercourse was significant association with cues to action (OR=0.43, 95%CI= 0.22-0.86)

Conclusion: The study highlights the situation of safe sex behaviors among adolescent vocational students in Nakhon Ratchasima. It is recommended that sex education should be improved within the curriculum and active campaigning in schools should be promoted.
Sexual risk behaviors and sexual harassment among female beer promoters in Chiang Mai Province, Thailand
Authors:   , Phaiyarom Mathudara 
Published: September 2023

Beer promoters can be found throughout the country and Chiang Mai after alcohol drinks advertising was illegal according to Alcohol Beverage Control Act. From their working conditions, they are faced with sexual harassment and encourage to drink with clients which probably leads to sexual risk behaviors. There are few evidence-based researches about their sexual risk behaviors and sexual harassment so it is hard to solve these situations. This study aimed to determine their demographic data, sexual activities, attitudes, working conditions, sexual risk behaviors, and sexual harassment female beer promoters in Chiang Mai. Moreover, it aimed to find the association between variables. Cross-sectional survey was conducted from May to July, 2018. Snowball sample of 184 Thai female beer promoters who were 18 years old or more were asked to complete administrative questionnaire which included demographic data, sexual activities, sexual orientation, attitudes, sexual behaviors, and sexual harassment during working as a beer promoter. Descriptive statistics and bivariate analysis were used to examine responses of participants and association between variables. The results showed that mean age of respondents was 22.73. 58.7% of them were also student and studying in bachelor degree. There were 62.5% of having sex experience with 25.2% of them did not use the condom. For sexual harassment, most of respondents had experiences in medium level especially verbal harassment. It associated with currently student status (p-value = 0.038), having sexual intercourse experience (p-value = 0.024), and type of job (p-value = 0.000). In conclusion, sexual risk behaviors were still found among female beer promoters and the occurrence of sexual harassment remained high. There were association between currently student status, having sexual intercourse experience, and type of job and sexual harassment. The findings highlighted that magnitude of sexual risk behaviors and sexual harassment should be revealed to the public. It is necessary to help people in the society consider about these issues. And campaigns for women empowerment regarding negotiation and life skills for beer promoters should be created. The further study should expand the survey to other area and mixed method is recommended to explain in-depth information.
Robotic health monitoring program for fall prevention in elderly : Quasi-experimental study
Authors:   , Maneeprom Natthawadee 
Published: September 2023

Purpose: To develop and investigate effectiveness of robotic fall prevention program on knowledge score of fall prevention, number of exercises, balance score, and incident of fall among elderly at risk of fall residing in senior housings, Bangkok Thailand.

Methods: This was a quasi-experimental study with repeated measured. Sixty-four elderly in two senior housings in Bangkok with Barthel Index (BI) scale ≥12, either had at least one fall experience in the past 12 months and/or had Time Up and Go (TUG) test ≥20 seconds were recruited and purposively assigned to the intervention group (a small robot installed fall prevention software, with personal coaching and handbook guideline, n=32) and control group (received only handbook guideline, n=32). Proximal outcomes were knowledge on fall prevention score and number of exercises. The distal outcomes were balance score (Time Up and Go, TUG; Berg Balance Scale, BBS) and Incident of fall. Both groups were evaluated at baseline, 3rd, and 6th month after intervention.

Results: In both groups, there were statistically significant improvement on knowledge mean score at 6th month. However, the intervention group showed a faster increased knowledge mean score than those in the control group at 3rd month (p<0.01). The intervention group showed a higher number of exercises than control group at 3rd and 6th month (p<0.05). In addition, the intervention group showed increment number of exercises over time. (p<0.05). Even though there were not a significantly difference on balance mean score both TUG and BBS between the two groups at baseline, 3rd, and 6th month, the intervention group showed significantly improvement on balance both TUG and BBS at 6th month post-intervention (p<0.01). During 6 month study period, it was one fall incident in the control group.

Conclusions: The robotic fall prevention program shows faster increment of knowledge on fall prevention than reading handbook. Moreover, it can promote exercises, and improve balance among elderly at risk of fall residing in senior housings.
Prevalence and associated factors of neonatal microcephaly in Thailand 2014-2018
Authors:   , Thammaros Tassana 
Published: September 2023

The concern of neonatal microcephaly became high after Zika outbreaks occurred worldwide. Thailand was one of the affected countries. The estimation of neonatal microcephaly prevalence was crucial for public health preparedness and response. The epidemiological characteristics of microcephaly specifically to Thailand were vital to developing clinical management and guideline. The objectives of this study were to estimate the prevalence, describe the epidemiological characteristic and identify associated factors of neonatal microcephaly in Thailand during 2014-2018. This study was a cross-sectional study using data from the health data center, ministry of public health Thailand, 69% of live birth in Thailand was included in this database. Neonatal microcephaly is a newborn who has head circumference (HC) less than the 3rd percentile of standard HC by gestational age (GA) and sex. Univariate and multivariate analyses were performed to identify associated factors by using chi-square and multiple logistic regression, respectively. During 2014-2018, we obtained 121,448 records of a newborn who can evaluate the head size. The prevalence of neonatal microcephaly was 14.5%. Multivariate analysis showed that small for gestational age (SGA) (Adjusted OR 5.34, 95% CI 3.24, 8.81, P-value <0.001), birth length less than the 10th percentile of standard (Adjusted OR 2.92, 95% CI 1.36, 6.29, P-value 0.01), elderly pregnancy (Adjusted OR 1.84, 95% CI 1.07, 3.18, P-value 0.03), and 1st gravida (Adjusted OR 2.01, 95% CI 1.37, 2.95, P-value <0.001) were significantly associated factors of neonatal microcephaly. The prevalence of neonatal microcephaly in Thailand was higher than expected. The international head circumference chart may not suitable for the Thai newborn. The associated factors were birth weight, length, maternal age, and gravida. The standard head circumference for the Thai newborn is needed. The other associated factors may study in the future.
Simulation And Evaluation Of Butadiene Production From Ethanol Via One-Step Reaction
Authors:   , Imsaard Jirawat 
Published: September 2023

1,3-butadiene is an important compound produced from the steam cracking process. Raising demand for alternatives to fossil fuels has led to an increase in bio-derived ethanol production, which can also be used as a feedstock for 1,3-butadiene synthesis. This research investigated the simulation of 1,3-butadiene production from ethanol using one-step process with 1.AI2O3/ZnO (60:40), 2.MgO-SiO2-Na2O (1:1)(0.1%) and 3.Hf2.5ZM1.6/SiO2 as heterogeneous catalysts. The process simulation was carried out using commercial Aspen plus 8.0 program and the heat utilization efficiency was evaluated by Aspen energy analyzer software. The process optimal condition sequences were identified by adjusting the separation distillation parameters which include the number of stages, feed location, distillate to feed ratio (D/F), reflux ratio and condenser pressure. To assess the process energy usage, the parameters examined are heat duty in separation column, total utility requirement, and energy saving. The results show that MgO-SiO2-Na2O (1:1)(0.1%) catalyst provides the highest production rate of 62,676 kg/hr. From heat integration, Hf2.5ZM1.6/SiO2 catalyst has the highest heat duty in separation column (17.14 MJ/kg.) and AI2O3/ZnO (60:40) catalyst has the lowest heat duty in separation column (0.5 MJ/kg.) Moreover. MgO-SiO2 -Na2O (1:1)(0.1%) has the lowest total utility requirement (5.72 MJ/kg.) Finally,Hf2.5ZM1.6/SiO2 process has the most energy saving after all total energy requirements have been assessed.
Effectiveness of Thai hermit exercise (ruesi datton) on mild cognitive impairment's patients
Authors:   , Kongart Chomlak 
Published: September 2023

Mild Cognitive Impairment (MCI) is a recurrent brain disorder in memory. It is caused by the degeneration of the brain cells that is different from an individual’s age and develop to dementia. One way to help restore memory is to exercise. Thai hermit exercise is a wisdom in Thai exercise, which improve memory decline for the condition. The study design is randomized control trial. This study aimed to investigate the effectiveness of Thai hermit exercise among patients with MCI. 84 participants were recruited and randomized into intervention (n=42) control(n=42). The intervention group practiced Thai hermit exercise for 10 weeks. Psychological effect on cognitive function was evaluated measuring cognitive function that determined by Verbal Fluency test, Trail Making test A-B and Digit Span. The control group received standard treatment. Both study groups were assessed by all tests at the baseline and at week6 week8 and week10 of study. At baseline there were no statistically significantly between two groups (p<0.05). After intervention there were statistically significant improvement of cognitive function (p<0.05). The result strongly suggested the capability of Thai hermit exercise to be an effective treatment for patients with MCI.
Systems biology approach for the establishment of veterinary bone tissue engineering: the proteomics of cBM-MSCs and cDPSCs osteogenic models
Authors:   , Nantavisai Sirirat 
Published: September 2023

The utilization of canine mesenchymal stem cells (cMSCs) with multipotent capabilities has been regarded for possible therapy of incorrigible bone disease. Although various sources of cMSCs show similar characteristics, they are different in osteogenic potential due to their original cellular sources. This study was designed to globally explore and analyze the in vitro differentiation potential and behavior of canine bone-marrow derived mesenchymal stem cells (cBM-MSCs) and canine dental pulp stem cells (cDPSCs) toward osteogenic lineage. An in vitro osteogenic differentiation potential of the cells was preliminarily compared in terms of alkaline phosphatase activity assay and Von Kossa staining. Global study of an in vitro osteogenic differentiation potential of the isolated cells was performed using proteomic-based analysis through mass spectrometry with dimethyl labelling method at day 7 and 14 post-induction, comparing with undifferentiated cells. The result presented that cBMSCs and cDPSCs contained osteogenic differentiation potential but had differences in their alkaline phosphatase activity level and mineralization. Proteomics profiling revealed that cBM-MSCs and cDPSCs showed the differences in their protein expression of signaling pathways, extracellular matrix organization, cell cycle, metabolism, transport of small molecules, and vesicle-mediated transport which have been shown to involve in bone regeneration mechanisms. Basing on database analysis and functional assay confirmation, there were four potential osteogenic-regulating pathways; Wnt signaling, Notch signaling, bone-morphogenetic protein (BM-related signaling and transforming growth factor (TGF-related signaling, which played the crucial regulating of cBM-MSCs and cDPSCs toward osteogenic lineage. The obtained results could be used as a comprehensive data and principal knowledge of the osteogenic differentiation potential of cBM-MSCs and cDPSCs in vitro and the trend of MSC-based tissue engineering for osteogenic regenerative therapy, concentrating on cMSCs application.

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PEDV monitoring using oral fluid, feces and surface swab samples after the PED outbreak
Authors:   , Jantrasakul Busayamas 
Published: September 2023

A total of 220 pooled samples from 3 collection times were conducted. Eighty pooled samples from the first collection at 1 month after PED outbreak (1MAO) included 10 pooled oral fluid samples, 30 pooled fecal samples and 40 pooled surface swab samples. Eighty-five pooled samples from the second collection at 2MAO included 10 pooled oral fluid samples, 30 pooled fecal samples and 45 pooled surface swab samples. Fifty-five pooled samples from the third collection at 8MAO included 5 pooled oral fluid samples, 15 pooled fecal samples and 35 pooled surface swab samples. All samples collected from the PED-affected swine farm in Chonburi province, Thailand between July 2017 to February 2018. The objective of this study was to evaluate the existence of PEDV residues in pigs and fomites in the affected swine farm after the PED outbreak and gut feedback protocol was implemented. Oral fluid, fecal and surface swab samples were collected to monitor the existence of the residue virus after the outbreak when practicing gut feedback protocol. The results showed that all pooled samples were positive to PEDV for 20 pooled samples (20/220, 9%). The samples at first collection (1MAO) were positive to PEDV (2/80, 2.5%) from a primiparous sow pen after 3 weeks farrowing and a multiparous sow pen after 3 weeks farrowing. The highest prevalence was found in the second sample collection (2MAO) and positive to PEDV (18/85, 21.17%) by 2 positive feces samples from multiparous gestated sows and multiparous sow after 1 week farrowing and 16 positive samples of surface swab samples from 1 positive sample from empty farrowed barn, 5 positive samples from primiparous sow pen after 1 week farrowing, 5 positive sample from multiparous sow pen after 1 week farrowing, 3 positive sample from primiparous sow pen after 3 week farrowing, 2 positive sample from multiparous sow pen after 3 week farrowing and no positive samples were found at the third sample collection (8 MAO). There have no any positive oral fluid samples from all samples. These findings demonstrated that fecal sample and surface swab sample could be used for PEDV detection after the outbreak up to 2 months when using gut feedback protocol. Viral eradication on the surface areas of the affected farm and PEDV monitoring from the fecal samples could be the effective tools for the prevention and control strategy.
Flood Damage Assessment: A Case Study in Bakan and Phnom Kravanh Districts, Pursat Province, Cambodia
Authors:   , Rorm Chhunleang 
Published: September 2023

Flood is still a major climate hazard in Pursat province, a potential province for agricultural development in Cambodia. The consequences of this water-related disaster are social problems such as poverty, food insecurity and health problems, which indirectly prolong the growth of the country’s economy. To propose a proper flood mitigation measure, flood damage assessment is considered as a fundamental step to implement so that the value of elements at risk is initially evaluated. The objectives of this research are to assess flood damage in agriculture and affected people in Bakan and Phnom Kravanh districts, Pursat province from 2000 to 2014, to develop flood damage probability curve in 2014 and to estimate potential flood damage in 2030 and 2050 associated with socio-economic development. The study is divided into three parts 1) flood damage assessment using satellite datasets in Google Earth Engine (GEE); 2) hydrological and economic analysis; and 3) flood mitigation plans. The study shows a better correlation between maximum monthly observed discharge and maximum monthly water extent from GEE (R2 = 0.59) in Bakan and Phnom Kravanh districts from 2000 to 2014. The annual average damage in all sectors in 2014 is estimated to be 1.66 million USD in which around 90% is in Agriculture and 10% is on the affected people meaning that the affected area is in the rural area. The annual average damage in all sectors in 2030 and 2050 in the second scenario is estimated to be 3.55 and 8.99 million USD respectively, while the proposed mitigation plan can reduce around 36% of the total damages in both years. This result can be used as the basic information to support the government policy in the future regarding the mitigation plans to reduce flood damages.