KKU Research Journal (Graduate Studies)

Editorial Note

2026-06-28T15:31:35+07:00

วารสารวิจัย มข. (ฉบับบัณฑิตศึกษา) ปีที่ 26 ฉบับที่ 1 ประจำเดือนมกราคม–มีนาคม พ.ศ. 2569 มีความยินดีนำเสนอผลงานวิจัยจากนักวิจัย คณาจารย์ นักศึกษา และบุคลากรทางวิชาการ ซึ่งผ่านกระบวนการพิจารณาจากผู้ทรงคุณวุฒิ เพื่อเผยแพร่องค์ความรู้ที่มีคุณภาพและสามารถนำไปใช้ประโยชน์ทั้งในด้านวิชาการ การวิจัย และการพัฒนาสังคม จำนวนทั้งสิ้น 12 บทความ

บทความวิจัยในฉบับนี้สะท้อนถึงความหลากหลายขององค์ความรู้ ครอบคลุมทั้งด้านการพัฒนาอย่างยั่งยืนผ่านการบริหารโครงการเพื่อลดการปล่อยก๊าซคาร์บอนไดออกไซด์ การศึกษาด้านวิทยาศาสตร์สุขภาพและผลิตภัณฑ์ธรรมชาติ อาทิ เห็ดทางการแพทย์ ตำรับยาสมุนไพร และน้ำมันกัญชา ตลอดจนงานวิจัยด้านสาธารณสุขที่ศึกษาปัจจัยด้านการบริหาร ภาวะผู้นำ จิตวิทยาเชิงบวก การทำงานเป็นทีม และการพัฒนาองค์กร ซึ่งล้วนมีบทบาทสำคัญต่อการยกระดับคุณภาพการให้บริการสุขภาพ นอกจากนี้ ยังมีการศึกษาปัจจัยที่เกี่ยวข้องกับการเกิดโรคในประชากรกลุ่มเสี่ยง และการพัฒนาศักยภาพอาสาสมัครสาธารณสุขผ่านการประยุกต์ใช้เทคโนโลยีเพื่อส่งเสริมการดูแลสุขภาพของประชาชนในชุมชน

กองบรรณาธิการหวังเป็นอย่างยิ่งว่า ผลงานวิจัยที่เผยแพร่ในวารสารฉบับนี้จะเป็นประโยชน์ต่อคณาจารย์ นักวิจัย นักศึกษา บุคลากรทั้งภาครัฐและภาคเอกชน ตลอดจนผู้สนใจทั่วไป ในการนำองค์ความรู้ไปประยุกต์ใช้ ต่อยอดงานวิจัย และพัฒนาการปฏิบัติงานให้เกิดประโยชน์ต่อสังคมและประเทศชาติต่อไป

กองบรรณาธิการขอขอบคุณผู้เขียนบทความ ผู้ทรงคุณวุฒิประเมินบทความ และผู้เกี่ยวข้องทุกฝ่ายที่ร่วมสนับสนุนการดำเนินงานของวารสาร จนทำให้วารสารวิจัย มข. (ฉบับบัณฑิตศึกษา) ยังคงเป็นเวทีเผยแพร่ผลงานวิจัยที่มีคุณภาพและได้รับความเชื่อถือในแวดวงวิชาการอย่างต่อเนื่อง

วารสารฯ ยินดีต้อนรับผลงานวิจัย และบทความวิชาการจากทุกท่าน เพื่อร่วมเป็นส่วนหนึ่งของการขับเคลื่อนองค์ความรู้ในสาขาวิทยาศาสตร์และเทคโนโลยี ให้เติบโตอย่างมั่นคงและยั่งยืน ผู้สนใจสามารถศึกษารายละเอียดเพิ่มเติม และส่งบทความเพื่อพิจารณาตีพิมพ์ได้ทางระบบออนไลน์ของวารสาร ที่เว็บไซต์ https://journal.gs.kku.ac.th/gs และ https://www.tci-thaijo.org/ index.php/gskku/user/register

An Investigation of Project Management Factors for Carbon Dioxide Reduction in Railway Infrastructure Projects

2026-01-22T14:50:06+07:00

The rapid expansion of railway infrastructure construction projects in Thailand plays a crucial role in supporting sustainable national development. However, the construction phase is recognized as a major contributor to carbon dioxide (CO₂) emissions. This study aims to investigate and analyze project management factors that contribute to CO₂ emission reduction in railway infrastructure construction projects in Thailand. A quantitative research approach was employed. Based on an extensive literature review, 27 project management variables were identified and incorporated into a five-point Likert scale questionnaire. Data were collected from 407 practitioners involved in railway infrastructure construction projects and analyzed using descriptive statistics and Exploratory Factor Analysis (EFA). The results reveal that the extracted factors explain a total variance of 70.538% and can be classified into four principal components: (1) Project Planning and Management Approaches, (2) Site and Resource Management, (3) Personnel and Stakeholder Readiness, and (4) Standards and Operational Control. The findings indicate that strategic planning, managerial support, stakeholder cooperation, and systematic operational control play a significant role in reducing CO₂ emissions during the construction phase. This study provides practical and policy-relevant insights for enhancing project management practices in railway infrastructure construction, thereby supporting sustainable carbon emission reduction and long-term infrastructure sustainability in Thailand.

Evaluation of Antioxidant Activity and Polyphenol Content in Aqueous and Ethanolic Crude Extracts of the Medicinal Mushroom Species Sanghuangporus sp.

2025-10-09T09:51:08+07:00

This study aimed to evaluate the antioxidant activity and polyphenolic content of crude extracts from Sanghuangporus spp., using two different solvents: 95% ethanol and hot water (95°C for 1 hour). Antioxidant activities were assessed using ABTS, DPPH, and FRAP assays. The polyphenolic compounds analyzed included total phenolics, total flavonoids, and tannins. The results showed that the ethanol extract exhibited the highest antioxidant activity (IC₅₀: 0.139 ± 0.000 and 0.035 ± 0.000 mg/mL; FRAP: 1,416.207 ± 1.360 (mg FeSO4/g extract)) and the highest levels of polyphenols, with total phenolics at 12,026.650 ± 10.274 (mg GAE/g extract), total flavonoids at 716.421 ± 4.714 (mg QE/g extract), and tannins at 694.842 ± 5.748 (mg Tannic acid/g extract). These findings suggest that ethanol-extracted Sanghuangporus spp. are a promising natural source of antioxidants with potential for development into health-related products.

Factors Associated with Hepatobiliary Disease among Farmers in Northeastern Thailand

2025-06-02T09:44:54+07:00

A case-control study was conducted to investigate the role of pesticide exposure in the development of hepatobiliary diseases among farmers in northeastern Thailand during the period 2016–2021. Participants were categorized based on ultrasound findings into two groups: cases (n=262), who were diagnosed with hepatobiliary disease, and controls (n=271), who were not diagnosed with such conditions. Secondary data were obtained from the Cholangiocarcinoma Screening and Care Program (CASCAP) and farmers health surveillance records from the Occupational Disease Surveillance Project, which covered the same region. Descriptive statistics were used to describe the prevalence, and inferential statistics, including the Chi-square test, were used to analyze associations at a significance level of 0.05. The results revealed a spatial distribution of abnormal serum cholinesterase levels and hepatobiliary diseases, with Kalasin province showing the highest prevalence (18.57% and 19.14%, respectively). Significant differences were observed between the case and control groups among farmers who were under fifty years of age, Opisthorchis viverrini infection, treatment history for O. viverrini, agricultural practices, patterns of pesticide use, and serum cholinesterase levels. These findings suggest for further investigation of risk factors and its association with pesticide exposure for health surveillance among pesticide-using farmers and for formulating suitable area-specific preventive strategies against pesticide-related risks.

Administrative Factors and Key Success Factors Affecting the Risk Management in the Practice of Thai Traditional Medicine Personnel at Community Hospitals in Health Region 7

2025-04-18T22:48:44+07:00

This cross-sectional descriptive research aimed to study the administrative factors and key success factors affecting risk management in the practice of Thai traditional medicine personnel in community hospitals in Health Region 7. The study included 133 Thai traditional medicine personnel from a total population of 168. Research instruments consisted of questionnaires and in-depth interviews with 12 participants. Statistical analyses included descriptive statistics and inferential statistics, specifically Pearson's correlation coefficient and stepwise multiple linear regression analysis, with statistical significance set at 0.05. The results revealed that the overall levels of administrative factors, key success factors, and risk management practice were high, with mean scores of 4.02 (S.D.=0.50), 4.15 (S.D.=0.50), and 4.09 (S.D.=0.47), respectively. The study found that three variables; key success factors in creating understanding and encouraging cooperation, administrative factors related to time management, and success factors in connecting facilities within the same network - collectively predicted and affected risk management in the practice of Thai traditional medicine personnel in community hospitals in Health Region 7 at 51.0% (R²= 0.510, P-value<0.001).

Administrative factors and Organizational climate affecting the Organizational commitment of Public Health Personnel at Sub-District Health Promoting Hospitals in Buriram Province

2025-05-31T22:56:44+07:00

This cross-sectional descriptive research aimed to study Administrative Factors and Organizational Climate Affecting the Organizational Commitment of Public Health Personnel at Sub-District Health Promoting Hospitals in Buriram Province, Thailand. A set of 146 health personnel at sub-district health promoting hospitals were randomly selected by stratified random sampling technique from 1,055 populations. The quantitative data was collected using questionnaires and used In-Depth interview guidelines to collect qualitative data from 12 key informant. Statistical analyses included descriptive statistics and inferential statistics, specifically Pearson's correlation coefficient and stepwise multiple linear regression analysis, with statistical significance set at 0.05. The results showed that the overall level of administrative factors, organizational climate, and the organizational commitment were at a high level with averages of 4.04 (S.D.=0.51), 4.08 (S.D.=0.48), and 4.21 (S.D.=0.43), respectively. Four variables composed of organizational climate; responsibility, standard setting, identity, and support were affected and could jointly predicted the organizational commitment of public health personnel at sub-district health promoting hospitals in Buriram province at 71.3% (R²=0.713, p-value<0.001)

Positive Psychological Factors and Leadership Skills Affecting Consumer Protection Operations Among Responsible Personnel in Subdistrict Health Promoting Hospitals in Udon Thani Province

2026-03-18T13:11:26+07:00

This cross-sectional research study aimed to examine positive psychological factors and leadership skills affecting health consumer protection operations among consumer protection officers in Sub-district Health Promoting Hospitals, Udon Thani Province. The sample consisted of 126 consumer protection officers, selected from a total population of 206 individuals using simple random sampling. Quantitative data were collected using a researcher-developed questionnaire comprising five sections: personal characteristics, positive psychological factors, leadership skills, consumer protection operations, and problems, obstacles, and recommendations. The questionnaire's content validity was verified by a panel of experts. Data collection was conducted from October 17 to November 17, 2025, supplemented by in-depth interviews to support the quantitative findings. Descriptive and inferential statistics were applied, with a statistical significance level set at 0.05. The results revealed that the overall levels of positive psychological factors, leadership skills, and consumer protection operations were at a high level (x̄ =4.13, S.D.=0.43), (x̄ =4.16, S.D.=0.44), and (x̄ =3.87, S.D.=0.54), respectively. Furthermore, positive psychological factors and leadership skills collectively predicted consumer protection operations, accounting for 33.0% of the variance (R²= 0.330, p<.001). The hope dimension of positive psychological factors was a statistically significant predictor of consumer protection operations (B=0.402, 95% CI [0.210, 0.593], p<.001), as was the ethical leadership dimension of leadership skills (B=0.317, 95% CI [0.146, 0.488], p<.001). In conclusion, positive psychological factors and leadership skills were significant predictors of consumer protection performance among consumer protection officers in Sub-district Health Promoting Hospitals, Udon Thani Province.

Success Factors in Organizational Development and Teamwork Affecting Diabetes Remission Care by Registered Nurses In Sub-District Health Promoting Hospitals, Nakhon Ratchasima Province

2026-03-18T13:05:02+07:00

This study utilized a cross-sectional descriptive design.The objective was to investigate the success factors of organization development and teamwork affecting the provision of diabetes remission care by registered nurses in Sub-district Health Promoting Hospitals (SHPHs), Nakhon Ratchasima Province. The sample studied consisted of 143 registered nurses working in SHPHs within Nakhon Ratchasima Province. The research instruments included a questionnaire for quantitative data and in-depth interview guidelines for qualitative data collection from 12 key informants. Data collection was conducted between November 8, 2025, and November 28, 2025. Data were analyzed using Descriptive Statistics, Inferential Statistics, and Stepwise Multiple Regression with a significance level set at 0.05. The results revealed that, overall, success factors in organization development had a moderate correlation, while teamwork had a high correlation with the diabetes remission care provided by registered nurses in SHPHs, Nakhon Ratchasima Province, at a statistically significant level (r = 0.701, P-value < 0.001 and r = 0.723, P-value < 0.001, respectively). Three independent variables—namely, teamwork regarding appropriate membership and coordination, teamwork regarding systematic work processes, and organization development regarding appropriate goal adjustment—could jointly predict 56.7% of the variance in diabetes remission care (R² = 0.567, P-value < 0.001). Promote teamwork by designing collaborative tasks and activities with systematic workflows and well-defined goals.

Teamwork Skills and Learning Organization Affecting the Implementation of Primary Care Service Standard by Director of Sub-District Health Promoting Hospitals in Nakhonratchasima Province

2026-01-28T16:22:22+07:00

This study employed a descriptive cross-sectional research design with the objective of examining teamwork skills and learning organization affecting the implementation of primary care unit service standard by director of sub-district health promoting hospitals in Nakhon Ratchasima Province. The study population consisted of 348 directors of Subdistrict Health Promoting Hospitals in Nakhon Ratchasima Province. Stratified random sampling was employed to select a sample size of 128 participants. A total of 123 questionnaires were returned, yielding a response rate of 96.09%. Therefore, 123 participants were included in the analysis for this study.The research instruments included a structured questionnaire. Content validity was assessed by three experts, with all items achieving an item–objective congruence (IOC) index greater than 0.50. The reliability of the questionnaire was high, with a Cronbach’s alpha coefficient of 0.98 and in-depth interview guidelines for qualitative data collection from 13 key informants. Data were analyzed using descriptive and inferential statistics were employed using Pearson’s correlation coefficient to examine the relationships between teamwork skills and learning organization, and the performance based on primary care service standards of directors of Subdistrict Health Promoting Hospitals in Nakhon Ratchasima Province. In addition, Stepwise Multiple Linear Regression analysis was conducted to determine the effects of teamwork skills and learning organization on the performance according to the primary care service standards of these directors. with the level of significance set at 0.05.The results revealed that the overall levels of teamwork skills, learning organization characteristics, and performance according to the Primary Care Unit Standards among SHPH directors in Nakhon Ratchasima Province were at a high level with averages of 4.09 (S.D.= 0.42), 4.02 (S.D.= 0.41) and 4.17 (S.D.= 0.41), respectively. Five variables composed of three dimensions of teamwork skills; shared responsibility skills, problem-solving skills, and interpersonal relationship skills and two dimensions of learning organization; systems thinking and shared vision were effected and to jointly predict the performance of Primary Care Unit Standards. These factors accounted for 73.1% of the variance in performance (R² = 0.731, p-value< 0.001). This study identified several key challenges among directors of Subdistrict Health Promoting Hospitals, including limitations in systems thinking (71.43%), shared vision communication (68.25%), and teamwork in terms of shared responsibility (65.08%). These issues adversely affected data utilization, goal setting, and problem-solving effectiveness (61.90%), as well as interpersonal relationships (60.32%). To address these challenges, it is recommended to enhance systems thinking skills, promote participatory leadership, strengthen team-based working mechanisms, encourage evidence-based data utilization, and foster a supportive learning organization environment. Findings from the in-depth interviews indicate that digital communication systems should be strengthened, along with the promotion of experiential learning approaches. In addition, a non-blaming team culture and the use of systematic analytical tools should be fostered. These strategies are essential to enhance the effectiveness of primary care service delivery in accordance with established standards and to ensure alignment with local contextual conditions.

Comparative Evaluation of Anti-Inflammatory Activities and Accelerated Stability of Tri-Phon-That Remedies Containing Cymbopogon nardus (L.) Rendle versus Cymbopogon citratus (DC.) Stapf

2026-02-02T15:57:05+07:00

Tri-Phon-That is a traditional herbal remedy composed of three plants: Cymbopogon nardus (L.) Rendle, Zingiber montanum (J.Koenig) A.Dietr., and Zingiber zerumbet (L.) Roscoe ex Sm. It reduces fever and relieves pain. Some individuals contend that C. nardus may adversely affect their skin. The aim of this study was to evaluate the possibility of replacing C. nardus with Cymbopogon citratus (DC.) Stapf in the Tri-phon-that formulation. We investigated and compared the anti-inflammatory activity, chemical composition, and stability of the modified formulation with the original one. The findings demonstrated that the Tri-phon-that formulation with C. citratus exhibited anti-inflammatory properties comparable to the original recipe, as indicated by its similar effects on nitric oxide and interleukin-6 production. Chemical studies revealed that both formulations contained zerumbone, compound D, and DMPBD. Accelerated stability testing, conversely, revealed a significant decrease in the levels of DMPBD and zerumbone after day 30. At this stage, the anti-inflammatory activity of both extracts started to decrease. Our findings indicated that C. nardus can be substituted with C. citratus. Both extracts exhibited instability under accelerated conditions. They should be maintained at low temperatures for preservation purposes.

Chemical and Biological Stability of Thai Traditional Pain Relief Remedy named “Yaa-Thaa-Phra-Sen” Under Forced Degradation and Accelerated Storage Conditions

2026-01-30T22:19:48+07:00

Yaa-Thaa-Phra-Sen (YTPS) is a traditional Thai remedy composed of 13 herbs, with Drypetes roxburghii Wall. as the main ingredient. It has long been used in Thai traditional medicine (TTM) to alleviate pain and inflammation in osteoarthritis. This study aimed to evaluate the stability of YTPS extract under forced degradation and accelerated storage conditions. Forced degradation was performed under thermal, moisture, acid, alkaline, and oxidative conditions. The extract was also stored under accelerated conditions (40 ± 2ºC, 75 ± 5% RH) for 6 months. Stability was assessed by measuring ellagic acid content using high-performance liquid chromatography (HPLC), anti-inflammatory activity via nitric oxide (NO) inhibition, and antioxidant activity via DPPH assay. The results showed that acid hydrolysis and oxidation significantly reduced ellagic acid content, as well as anti-inflammatory and antioxidant activities. In contrast, alkaline hydrolysis increased ellagic acid content. Under accelerated storage conditions, ellagic acid and antioxidant activity remained stable, whereas anti-inflammatory activity declined. The conclusion is crucial to avoid acidic conditions during preparation to preserve the efficacy of the YTPS extract, and the inclusion of an antioxidant agent is recommended to prevent degradation. Both hot and cold preparation methods were found to be effective. Based on accelerated stability data, the extract is estimated to have a tentative shelf life of one year.

Clinical Effectiveness and Safety of Metta-Osot Cannabis Oil in Patients with Insomnia: A Quasi-Experimental Study

2026-03-18T13:08:27+07:00

This study aimed to evaluate the effectiveness and safety of Metta-osot cannabis oil in treating Insomnia. A total of 68 patients receiving care at the Thai Traditional and Alternative Medicine Center were enrolled in this quasi-experimental study using a pretest-posttest design without a control group. All participants received Metta-osot cannabis oil at a dosage of one drop once daily before bedtime for four consecutive weeks. Insomnia symtoms were assessed using the Insomnia Severity Index (ISI), and sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI). Safety outcomes were assessed through laboratory investigations, including liver and kidney function tests, complete blood counts, cortisol levels, and monitoring of adverse events. The results demonstrated that the mean ISI and PSQI scores of participants decreased continuously throughout the 4-week follow-up period. Compared with baseline (week 0) values at weeks 2 and 4 (p < 0.05), statistically significant improvements were observed. Comparisons of mean liver and renal function parameters before and after treatment revealed no significant differences. Complete blood count values remained within normal ranges. Although cortisol levels showed a slight increase after treatment, they remained within normal limits. A total of 23 adverse events were reported among 20 patients (29.41%), with dizziness being the most frequently reported event. Other adverse events included palpitations, unsteady gait, dry throat and mouth, and anxiety. These events were primarily associated with initial side effect of cannabis oil use. After continued administration at the same dosage for approximately one week, the adverse symtoms decreased. This study supports the effectiveness of Metta-osot cannabis oil in the treatment of insomnia and suggest that it can be safely applied in clinical practice.

The Effectiveness of Knowledge and Technology Skills Development of Health Volunteers for Community Health Care: A Case Study of Village Health Volunteers in Don Chang Subdistrict, Mueang District, Khon Kaen

2025-05-31T22:53:28+07:00

This research aimed to study the effectiveness of developing knowledge and skills in technology use among public health volunteers for community health care: A case study of village health volunteers in Don Chang Subdistrict, Mueang Khon Kaen District. The study employed a quasi-experimental design with two groups, using pre- and post-intervention measurements. Participants were divided into an experimental group and a control group. The findings revealed that, regarding knowledge of technology application, the experimental group scored significantly higher than the control group post-intervention p-value < 0.001. In terms of attitudes toward technology application, the experimental group also showed significantly higher scores than the control group post-intervention p-value < 0.001. Additionally, the application of technology in practice was significantly higher in the experimental group compared to the control group post-intervention p-value < 0.001. These results suggest that the development program effectively enhanced the knowledge, attitudes, and practical application of technology among public health volunteers.