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Item Metadata only A study of choice reaction time in shift workers within a three-shift system(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Wanchai Larnthongkum; Chusak Vejbaesya; Chalermchai Chaikittiporn; Karnda ChaipackdeePublication Metadata only A study of melatonin levels and stress in female shift workers(2006-09-01) Thitiworn Choosong; Sara Arporn; Chalermchai Chaikittiporn; Prince of Songkla University; Mahidol UniversityThe aim of this study was to determine the relationship between saliva melatonin and stress levels in Thai female shift workers. Five older (38.4 ± 1.82) and five younger (21.4 ± 0.55) female workers voluntarily participated in this study. All... participants worked both morning and night shifts at a glass manufacturing factory. Saliva was collected every three hours at the workplace and at the subjects' houses to examine melatonin profiles. The Mann-Whitney U test and the Wilcoxon signed ranks testPublication Metadata only Degree of midline shift from CT scan predicted outcome in patients with head injuries(2010-01-01) Pipat Chiewvit; Siri On Tritakarn; Sarun Nanta-aree; Suthisak Suthipongchai; Mahidol UniversityObjective: To evaluate the relationship between the degree of midline shift by Computed Tomography (CT) finding and Glasglow Coma Score (GCS) as a predictive of clinical outcome in patients after head injury. Method and Method: The present study... and underwent CT brain for evaluation of intracranial hemorrhage and midline shift. The final clinical outcome was also divided into two groups; good outcome for the patients who recovered well with moderate disability and the poor outcome for the patients whoPublication Metadata only Fatigue assessment among onshore oil rig shift workers in Thailand(2021-05-01) Petcharatana Bhuanantanondh; Pokkate Bandidcharoenlert; Wattana Jalayondeja; Chutima Jalayondeja; Keerin Mekhora; Mahidol UniversityThis study aimed to assess fatigue among onshore oil rig shift workers in a petroleum company working in swing shifts. The work schedule consisted of 12 h of night shifts for one week followed by 12 h of day shifts for one week. Fatigue was assessed... using both subjective and objective measurements which were visual analogue fatigue scale (VAFS) and simple reaction time (SRT) test, respectively. A total of 38 male onshore oil rig shift workers participated in this study. Fatigue assessmentItem Metadata only A study of stress levels and cortisol changes in female shift workers(Mahidol University. Mahidol University Library and Knowledge Center, 2004) Amorn Upakaew; Sara ArphornPublication Metadata only Cross-shift change of acute kidney injury biomarkers in sugarcane farmers and cutters(2020-01-01) Ritthirong Pundee; Pornpimol Kongtip; Noppanun Nankongnab; Sirirat Anutrakulchai; Mark Gregory Robson; Susan Woskie; University of Massachusetts Lowell; School of Environmental and Biological Sciences; Khon Kaen University; Mahidol University; Center of Excellence on Environmental Health and Toxicology© 2020 Taylor & Francis Group, LLC. Sugarcane farmers and cutters have been reported to be at high risk of acute kidney injury. This cross-sectional study aimed to assess acute kidney injury biomarkers, and cross-shift change among 150 sugarcane... cutters and 98 sugarcane farmers in Thailand. Physical health examination, environmental measurements, and measured urinary neutrophil gelatinase-associated lipocalin (NGAL) were assessed. Cross-shift change of urine creatinine (uCr), albumin creatininePublication Metadata only A hyper-heuristic with two guidance indicators for bi-objective mixed-shift vehicle routing problem with time windows(2018-12-01) Binhui Chen; Rong Qu; Ruibin Bai; Wasakorn Laesanklang; University of Nottingham Ningbo China; South Carolina Commission on Higher Education; University of Nottingham; Mahidol University© 2018, The Author(s). In this paper, a Mixed-Shift Vehicle Routing Problem is proposed based on a real-life container transportation problem. In a long planning horizon of multiple shifts, transport tasks are completed satisfying the time... constraints. Due to the different travel distances and time of tasks, there are two types of shifts (long shift and short shift) in this problem. The unit driver cost for long shifts is higher than that of short shifts. A mathematical model of this Mixed-ShiftPublication Metadata only Effects of conformational change and segmental aggregation on photoemission of illuminophores in conjugated polymer MEH-PPV: Blue shift versus red shift(2008-02-01) Rakchart Traiphol; Nipaphat Charoenthai; Naresuan University; Mahidol Universityis responsible for red-shift peaks in absorption and emission spectra detected at ∼550 nm and ∼580 nm, respectively. The chain collapse, on the other hand, causes a blue shift of the spectra. Furthermore, the measurements of emission spectra by using excitationItem Metadata only Strategic income shifting in uncertain times: Insights from economic policy uncertainty(2026-02-01) Chatjuthamard P.; Chintrakarn P.; Jiraporn P.; Chatjuthamard P.; Mahidol UniversityWe explore the impact of economic policy uncertainty (EPU) on outbound income shifting by U.S. firms, offering valuable insights into how firms adapt their tax strategies under uncertain economic conditions. Using a unique dataset from De Simone et... al. (2019) originally derived from confidential IRS records, we find a significant positive effect of EPU on outbound income shifting. Firms respond to uncertainty by more actively reallocating profits across jurisdictions to mitigate riskPublication Metadata only Continuous dengue type 1 virus genotype shifts followed by co-circulation, clade shifts and subsequent disappearance in Surabaya, Indonesia, 2008-2013(2014-09-09) Tomohiro Kotaki; Atsushi Yamanaka; Kris Cahyo Mulyatno; Siti Churrotin; Amaliah Labiqah; Teguh Hari Sucipto; Soegeng Soegijanto; Masanori Kameoka; Eiji Konishi; Universitas Airlangga; Kobe University School of Medicine; Mahidol University; Osaka University, the second biggest city of Indonesia, we previously reported a shift of the predominantly circulating serotype from DENV-2 to DENV-1 in November 2008, followed by a genotype shift of DENV-1 from genotype IV (GIV) to genotype I (GI) in September 2009, based... during 2008-2013 in more detail. From January 2011 through December 2011, only GIV strains were isolated, indicating that a genotype shift again took place from GI to GIV. In January 2012, GI and GIV strains started co-circulating, which continued until