cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2010.1900
title: Filipino health workers in metropolitan Bangkok

description: This thesis looks at Filipino health workers who have migrated to Bangkok. Most migration literature focuses on unskilled labor, but due to ASEAN's goal of opening the Southeast Asian region to skilled labor, it is pertinent that skilled labor be examined. Health workers have been targeted by ASEAN for the free flow of services, and agreements concerning these workers have already been signed. Filipinos represent a highly mobile group, and the Philippines is the preeminent country in the world for exporting health workers. This study also evaluates ASEAN agreements and their effect on Filipino health workers, motivations for Filipinos to move to Bangkok, and the working conditions of Filipino health workers. This is a qualitative case study using interviews of key informants living in Bangkok. Data concerning the number and types of Filipino migrants has also been compiled from major private international hospitals in Bangkok. Results indicate that there is only a small community of Filipino health workers in Bangkok due to local rules and regulations and the non-implementation of ASEAN MRAs. Filipinos come for a variety of reasons. Greater work related opportunities and the lower cost of living are significant factors as are the influence of Filipino networks and the opportunity for new experiences. Working conditions are at a respectable albeit imperfect level, and most Filipino health workers are generally satisfied with their work environment. This study could be useful for Thai and Filipino government officials, ASEAN officials, private industry, and academics studying migration
DOI: 10.14457/cu.the.2010.1901
title: Optimization of spray-drying process for perparation of inhalable rifampicin-loaded popy (d,l-lactide-co-glycolide) powder

description: In this study, a 2⁴ full factorial design with center points was performed to investigate the influence of the following independent spray drying process parameters: inlet drying temperature (℃), aspirator control (%), pump setting (%) and nozzle gas flow setting (mm) on the properties of poly(d,l-lactide-co-glycolide) (PLGA) microparticles loaded with rifampicin. The rifampicin-PLGA micropaticles were obtained from spraying the mixed solution in a mini spray dryer. The process yield, mass median diameter, entrapment efficiency and dissolution at first 20 min were evaluated. First, the nozzle gas flow setting was found to be a main effect on the studied responses followed by inlet drying temperature, aspirator control, and pump setting. Full factorial design with center points revealed all process parameters did not effect on entrapment efficiency and dissolution at 20 min. This study aims to optimize the operating conditions to maximize process yield of inhalable rifampicin-PLGA microparticles. The optimal operation conditions thus were evaluated by response surface methodology. Central composite face centered (CCF) design showed quadratic model were adequate. A statistical optimization of the spray drying process parameters gave recommended conditions by using inlet drying temperature 55 ℃, aspirator control 100%, pump setting 10% and nozzle gas flow setting 33 mm. This experiment would to generate a process yield of 33.4517 % by weigh of microparticles with a mass median diameter of 3.1997 µm. Finally, the data form design experiment was used in defining the process design space. The design space has been evaluated considering the significant process parameters and the relative influence of each variable on the desired characteristics of PLGA microparticles loaded rifampicin: process yield not less than 30% and mass median diameter between 3 and 5 µm. It is shown that spray drying method can produce rifampicin-PLGA microparticles that high productivity and compliance of inhalable powder specifications
DOI: 10.14457/cu.the.2010.1902
title: Integrated and collaborative ecological and socio-economic modelling for sustainable razor clam management at Don Hoi Lord Ramsar Site, Thailand

description: Don Hoi Lord wetland located near Mae Klong river mouth in the area of Samut Songkhram province, upper the Gulf of Thailand. The wetland was registered as the 1099th Ramsar site. Razor clam (Solen regularis) is an important species in the sandbars which are a part of this wetland. Fisherman has harvested razor clam for generating income more than 2 generations. Due to the previous studies, razor clam population has decreased since 1981. The objective of this study aims to explore possible sustainable management policies for Don Hoi Lord by using Companion Modelling approach (ComMod). The approach mainly consists of Agent-based simulation model (ABM) and participatory simulation workshop with stakeholders involvement. To achieve the aim of the study, there are 3 parts including: 1) ecological study of razor clam population and its environmental factors especially sediment and particulate organic carbon (POC) between June 2008 – May 2009; 2) socio-economic study to understand fisherman harvesting behavior and razor clam market mechanism; and 3) ABM development from field study finding and test the agreeable management scenarios with stakeholders. Moreover, the ABM was used in participatory simulation workshop to validate the ABM and to exchange and discuss on razor clam sustainable management. The results from ecological study showed that razor clam population density was in crisis due to the decreasing of mean density to 0.51±0.30 clam/m2 as the lowest record among previous scientific studies. In addition, razor clam density had negative correlation with %organic matter in soil sediment and particulate sediment in water column (p &lt; 0.05) but it was not correlated with POC. Razor clam market mechanism driven by a trader who buys all razor clam from a fisherman and processed razor clam as clam meat before distributing to market. A buying price is set independently by traders based on their razor clam stock and a current market demand. Regarding fisherman, there were 2 factors affected fisherman’s decision to harvest razor clam, which are the density of razor clam and the price of razor clam. Due to the low razor clam density, fishermen would change to harvest on other species instead of razor clam but razor clam is still their preference. The ABM development was done by added i-stage distribution model and re-calibrated until the simulation model represented system behavior. Then, the management scenarios were tested by the ABM and found that reserved zoning in cooperation with individual quota system was the best scenario for sustaining razor clam population. Next, spatial interface of the ABM was upgraded based on socio-economic finding and the upgraded ABM was used in participatory simulation workshop with stakeholders. The workshop can be a forum for discussion among stakeholders by using ABM as mediator and sharing their representations for collective agreement to achieve sustainable management.
DOI: 10.14457/cu.the.2010.1903
title: Mining top-k regular-frequent itemsets from transactional database

description: Association rule based on support-confident framework is an important task in data mining community. However, the occurrence frequency of a pattern may not be sufficient criterion for mining meaningful patterns. The occurrence behavior can be revealed as an important key in several applications. A pattern is a regular pattern if it regularly occurs in a user-given period (regularity threshold). To mine regular itemsets, a support threshold is used to filter some regular itemsets. However, in practice, it is often difficult for users to provide an appropriate support threshold. Indeed, a too small support threshold could yield a number of regular-frequent itemsets impractically large while a too large threshold could yield very few or no regular-frequent itemsets. Therefore, the use of a support threshold tends to produce a large number of regular-frequent itemsets and it could be better to ask for the number of desired results. Currently, from the deep survey, there is no existing approach permitting users to specify the number of regular-frequent itemsets to be mined. Therefore, a new approach allowing the users to control the number of results (i.e. k regular itemsets with the highest supports) is presented. There are several techniques proposed in this dissertation to mine this kind of itemsets: (i) a single-scan approach, (ii) a best-first search strategy used to prune the search space, (iii) the partitioning and estimation techniques assisting in reducing unnecessary computational costs, and (iv) a new concise representation helping to save runtime and memory. From the performance study, the proposed approaches are efficient and scalable in terms of time and memory for small and large values of desired results on sparse and dense datasets.
DOI: 10.14457/cu.the.2010.1904
title: Petroleum fiscal regime analysis : the case of Myanmar offshore exploration and production

description: The study of efficiency of the current Myanmar fiscal regime is in order to provide some recommendation to the Government. Four cases field development and production of Myanmar offshore concessionary blocks were studied by using the Monte Carlo simulation methodology. The base case economic model is identified the level of government take and Internal rate of return and Effective Royalty Rate (ERR) Further more improve fiscal system, Rate of Return Contract system is introduced to the government. As the results and analysis of case studies, in order to have win-win situations between government and contractor, the efficient Myanmar fiscal regime should be considered as improved fiscal system or rate of return contract.
DOI: 10.5281/zenodo.3437795
title: The genome of C. bovis

description: The following files are key data files used in the manuscript:<br> <br> <strong>caenorhabditis_35species_1167orthos.supermatrix.fa</strong>: supermatrix consisting of the concatenated alignments of 1,167 single-copy orthologues which was used to infer the species tree. <strong>caenorhabditis_35species_1167orthos.treefile</strong>: <em>Caenorhabditis </em>species tree in newick format from IQ-TREE <strong>CBOVI.caenorhabditis_bovis_LS_v1.annotations.gff3</strong>: GFF3 (annotation) file for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.cds.fna</strong>: predicted coding sequences (CDS) for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.proteins.faa</strong>: predicted protein/amino acid sequences for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.scaffolds.fna</strong>: genome fasta for the <em>C. bovis </em>reference genome (Note: contains contigs, file named scaffold.fna to match filenames of other <em>Caenorhabditis</em> species) <strong>Orthogroups.txt</strong>: orthology clustering file of protein sequences from <em>C. bovis, </em>32 other <em>Caenorhabditis </em>species and two <em>Diploscapter </em>outgroup taxa from OrthoFinder The following files are tables that were included in the supplementary information in a previous version of the manuscript: <strong>TableS3_gene_families.tsv</strong>: table with a line for each orthogroup showing counts in <em>C. bovis, </em>averages in other species, and functional annotation generated using Pfam. <strong>TableS6_software_params.xlsx</strong>: versions of software used and relevant parameters. <strong>TableS7_phylogenomics_accessions.xlsx</strong>: accessions for all data using in orthology clustering and phylogenomic analyses.
DOI: 10.5281/zenodo.3437796
title: The genome of C. bovis

description: Data files associated with <em>C. bovis </em>genome publication. Below is a description of each file: <br> <br> <strong>caenorhabditis_35species_1167orthos.supermatrix.fa</strong>: supermatrix consisting of the concatenated alignments of 1,167 single-copy orthologues which was used to infer the species tree. <strong>caenorhabditis_35species_1167orthos.treefile</strong>: <em>Caenorhabditis </em>species tree in newick format from IQ-TREE <strong>CBOVI.caenorhabditis_bovis_LS_v1.annotations.gff3</strong>: GFF3 (annotation) file for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.cds.fna</strong>: predicted coding sequences (CDS) for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.proteins.faa</strong>: predicted protein/amino acid sequences for the <em>C. bovis </em>reference genome from BRAKER <strong>CBOVI.caenorhabditis_bovis_LS_v1.scaffolds.fna</strong>: genome fasta for the <em>C. bovis </em>reference genome (Note: contains contigs, file named scaffold.fna to match filenames of other <em>Caenorhabditis</em> species) <strong>Orthogroups.txt</strong>: orthology clustering file of protein sequences from <em>C. bovis, </em>32 other <em>Caenorhabditis </em>species and two <em>Diploscapter </em>outgroup taxa from OrthoFinder
DOI: 10.14457/cu.the.2010.1905
title: Antiviral innate immune response in periodontal tissue : part I detection of antiviral proteins

description: Periodontitis is a common chronic bacterial inflammatory disease in oral cavity. It affects tooth supporting structure-periodontium and may cause tooth loss. Several recent studies have documented a role of viruses in the development and progression of periodontitis but little that we know about the host immune response to viruses. In this study, we explored the innate antiviral proteins (secretory leukocyte protease inhibitor (SLPI), protein kinase R (PKR), oligoadenylate synthetase (OAS), and myxovirus resistance A (MxA)) in periodontal tissues, comparing between periodontitis and healthy (n=5 in each group). By real-time reverse transcription-polymerase chain reaction, we found expression of SLPI, PKR, OAS, and MxA in periodontitis as well as in healthy tissues and there were no significant differences between the two groups. MxA protein involves in antiviral activity against both RNA and DNA virus, we then focused on the protein expression of MxA in gingival epithelium and compare its expressions between periodontitis (n=7) and healthy (n=9). By immunostaining, healthy tissues showed a higher score of MxA in epithelial layer than those in periodontitis. Of particular interest, we could obtain one complete biopsy of the oral, sulcular and junctional epithelium from healthy tissue. Very strong MxA expression was observed in gingival sulcus area, the strategic location in close proximity to dental plaque biofilms. The significance of this finding needs to be explored. Since MxA is known to be induced by type I interferon, we further examined the presence of this cytokine in periodontal tissues by real-time reverse transcription-polymerase chain reaction. Interestingly, negligible expression of type I interferon was detected, indicating that other mediators or molecules may involve in MxA induction in healthy tissues. In conclusion, this study is the first to report detection of mRNA expression of variety of antiviral proteins (SLPI, PKR, OAS, and MxA) in both periodontitis and healthy tissues. Expression of these proteins in healthy periodontal tissues, especially MxA in gingival sulcus, suggesting effective antiviral innate immunity in the oral cavity. Future research is required for better understanding of the mechanisms and signaling pathway of these antiviral proteins in healthy and periodontitis.
DOI: 10.14457/cu.the.2010.1906
title: Protein profiles in Chlorella spp., Desmodesmus spp., and Scenedesmus spp., grown at temperature range 28°C - 40°C and analysis of DNA fingerprints and β-carotene contents

description: Green microalgae including Chlorella spp., Desmodesmus spp. and Scenedesmus spp. are primary producers in the aquatic ecological systems. Deleterious effects on the primary producers undoubtedly lead to harmful effects on the consumers including human along the food chains. In addition, these microalgae have been found to be microorganisms for the production of useful products at laboratory scale which, with further research, could potentially be scaled-up to pilot and industrial scales. With the imminent global warming and its effects on primary producers including green microalgae and with the industrial importance of selecting fast-growing and heat-tolerant green microalgae for industries, this research was initiated with the aims of selecting fast-growing and heat-tolerant strains from 5 strains each of Chlorella spp., Desmodesmus spp. and Scenedesmus spp. The second aim of the research is to gather preliminary results on mechanisms of heat-tolerance in terms of existing β-carotene contents at 25°C and SDS-PAGE protein profiles when 5.5 x 10[superscript 6] CFU/ml of each strain were grown at 28°C-32°C in a temperature-controlled greenhouse and at 28°C-32°C for 16 h alternated with growth at 40°C for 8 h in a temperature - controlled water bath placed in the greenhouse throughout the experiments. Results of RAPD-PCR fingerprints of the 15 green microalgal strains showed they were different strains. Growth at 25°C showed unicellular green microalgae Chlorella spp. grew more rapidly than multicellular microalgae Desmodesmus spp. and Scenedesmus spp. Growth at 28°C-32°C and at 28°C-32°C for 16 h alternated with 40°C for 8 h showed Chlorella spp. strains PK37 and SS1 were heat-tolerant while Desmodesmus spp. strains NJ40 and SS5 were mesophilic. No correlation was obtained between heat tolerance or mesophilicity properties and contents of β-carotene and polypeptides which had similar molecular weights to those of heat-shock proteins.
DOI: 10.14457/cu.the.2010.1907
title: Modification of styrene grafted natural rubber by tetraethoxysilane

description: Styrene graft natural rubber (ST-g-NR) was prepared via an emulsion polymerization with redox system of cumene hydroperoxide (CHPO)/ tetraethylene pentamine (TEPA) as initiators. In situ silica filling of ST-g-NR was carried out by using sol-gel reaction of tetraethoxysilane (TEOS) with solid rubber and latex solution method. The effects of reaction condition were studied. For solid rubber method, the effects of catalyst concentration, reaction temperature and reaction time on the in situ silica content were investigated. The in situ silica content increased with the increase of catalyst concentration and reaction time, while the reaction temperature was not affected. The maximum in situ silica content about 50 phr was obtained. For latex solution method, TEOS content, reaction temperature, addition time of TEOS and reaction time were investigated. The in situ silica content increased with the increase of TEOS content and reaction time, while the reaction temperature was not affected. The maximum in situ silica content about 24 phr was achieved when TEOS added after graft copolymerization finished. Moreover, the effects of the conventional silica and in situ silica on the mechanical properties of GNR vulcanizate were also investigated and compared. The mechanical properties of in situ silica filled GNR vulcanizate were higher than those of commercial silica filled GNR vulcanizate. The TEM micrographs indicated that the in situ silica particles were well dispersed in the rubber matrix while the commercial silica particles were agglomerated in the rubber matrix.
DOI: 10.14457/cu.the.2010.1908
title: Development of calcium oxide based catalysts for ethyl ester production

description: To study the development of calcium oxide based catalysts for transesterification of soybean oil with ethanol. The weak basic compounds (NH4OH) and the strong basic compounds (NaOH, KOH and Ca(OH)2) were used to load on CaO. All catalysts were characterized by XRD, BET, TEM, CO2-TPD and TGA to examine the characteristics and properties which could affect transesterification reaction. The results showed that Ca(OH)2 and NH4OH loaded CaO based catalysts, calcined Ca(OH)2 and CaO from limestone had potential to be used as heterogeneous catalysts for transesterification reaction. The CaO loaded with 3.7 wt% of Ca(OH)2 was found to exhibit the highest catalytic activity among all catalysts investigated. The maximum ethyl esters content achieved was 96.3 wt% after 10 hours of the reaction. The optimum conditions were 9:1 molar ratio of ethanol to oil and 13.8 (wt% by oil) of catalyst operated at 70℃ for 10 hours. The results also showed that the catalytic activity of catalysts depended upon the crystal structure and the agglomeration of catalysts. Reusability of the catalyst was investigated and it was found that the conversion of biodiesel maintained the same level after recycling of at least 3 times.
DOI: 10.14457/cu.the.2010.1909
title: Earnings attributes and corporate disclosure and transparency : empirical evidence from Thailand

description: To examine the association between the degree of corporate disclosure and transparency and earnings attributes of losted firms in The Stock Exchange of Thailand. The sample of this study consists of Thai listed firm in SET100 index during year 2005-2008. The disclosure and transparency level is measured using Standard and Poor's transparency and disclosure scoring methodology (S&P:T&D). Earnings attributes are defined in terms of both accounting-based and market-based earnings attributes. The results show that accruals quality and smootness are negatively associated with total scores of disclosure and transparency. This indicates that investor confidence in financial statements. In addition, the study provides signicficant results of total scores indicating that the total scores may be driven by different levels of disclosures in ownership structure and investor rights and in board and management structure and process. On the other hand, the financial information disclosure is not associated with earnings attributes because the negative association between transparency and disclosure scores and earnings attributes of this study is consistent with the substitute relationship indicating that firms with poor earnings attributes usually issure more expansive disclosure.
DOI: 10.14457/cu.the.2010.1910
title: Perineal hernia repair using a tunica vaginalis autograt in dogs

description: Perineal herniorrhaphy using an autologous tunica vaginalis was performed in 19 intact male dogs presented at the Small Animal Hospital, Faculty of Veterinary Science, Chulalongkorn University. Fourteen dogs had unilateral perineal hernia (PH) and 5 dogs had bilateral PH. There were 22 hernias receiving tunica vaginalis autografting. Before PH repair, all dogs were castrated and the tunica vaginalis was harvested. The tunica vaginalis autografting alone was used for repairing 17 hernias that the hernial ring did not extend to ventral of the anus. For 5 hernias with a very large hernial ring or that extended to ventral of the anus, combination of the autografting and transposition of the internal obturator muscle (TIOM) was performed. The postoperative follow-up of 8.51 (±3.61) months found the success rates of 88.23% (15 hernias) of the hernias receiving the autografting alone and 100% (5 hernias) of those receiving the autografting combined with TIOM. At 3 months after surgery, 18 dogs had normal defecation while 1 dog had mild defecation difficulty. Reherniations occurred in 2 dogs and were repaired by resuturing. The grafts together with the adjacent tissues were biopsied for histopathological examination. The grafts were viable and no sign of graft rejection was observed. Postoperative complications were wound infection (3 dogs), wound dehiscence (2 dogs), and temporary sciatic nerve paresis (2 dogs). In conclusion, tunica vaginalis autografting is suitable for repairing the hernia with large hernial ring or thin pelvic diaphragm muscles that is not a candidate of the standard herniorrhaphy or transposition of the internal obturator muscle. Use of this technique in combination with transposition of the internal obturator muscle provides a better result of perineal herniorrhaphy.