Naresuan University Journal
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Using Team- based learning (TBL) to promote integration of Public Health and Microbiology
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Chemical, mechanical and biological properties of contemporary composite surface sealers.
No full textLife cycle environmental sustainability of lignocellulosic ethanol produced in integrated thermo-chemical biorefineries
No full textThe phase behaviour of mixed saturated and unsaturated monoglycerides in water system
No full textLyotropic liquid crystalline phases are formed over a limited range of surfactant concentrations and temperatures as represented by regions on the phase diagram. Acknowledgement of the surfactant phase diagram is a major step in developing any industrial application. In this work; we have examined the phase behaviour of mixed saturated and unsaturated monoglycerides 1:1 (by weight) together with water. The main technique employed was X-ray diffraction, supplemented by optical microscopy and differential scanning calorimetry (DSC). The phase diagram which is a novel finding shows six phases for GMS/GMO mixture without water: α-gel (Lβ) phase, new α-gel (Lβ1) structure, β1 crystal phase, sub-α phase, β2-crystal, as well as an isotropic, L2, phase. In the presence of water five additional phases are formed, fluid lamellar phase, three bicontinous cubic phases, Ia3d, Pn3m and Im3m with increasing the water content, and on further heating all bicontinous cubic phase convert to a hexagonal phase. Our results show that the maximum swelling capacity of the mixture of monoglycerides in water is obtained at 50% (w/w) water content, and there are important differences in the phase behaviour between mixed saturated and unsaturated monoglycerides with and without water
Wood Formation in Trees Is Increased by Manipulating PXY-Regulated Cell Division
No full textThe woody tissue of trees is composed of xylem cells that arise from divisions of stem cells within the cambial meristem. The rate of xylem cell formation is dependent upon the rate of cell division within the cambium and is controlled by both genetic and environmental factors [1, 2]. In the annual plant Arabidopsis, signaling between a peptide ligand CLE41 and a receptor kinase PXY controls cambial cell divisions [3-5]; however, the pathway regulating secondary growth in trees has not been identified. Here, we show that an aspen receptor kinase PttPXY and its peptide ligand PttCLE41 are functional orthologs and act to control a multifunctional pathway that regulates both the rate of cambial cell division and woody tissue organization. Ectopic overexpression of PttPXY and PttCLE41 genes in hybrid aspen resulted in vascular tissue abnormalities and poor plant growth. In contrast, precise tissue-specific overexpression generated trees that exhibited a 2-fold increase in the rate of wood formation, were taller, and possessed larger leaves compared to the controls. Our results demonstrate that the PXY-CLE pathway has evolved to regulate secondary growth and manipulating this pathway can result in dramatically increased tree growth and productivity
How Mobile-Based Visuals Operate as Messages of Information for Different Cultures? Action case in the pilgrimage in Saudi Arabia
No full textCrowd control is a growing problem in the tourism industry that is flourishing in many western and eastern countries. The “pilgrimage” or “Hajj” to Makkah, in the Kingdom of Saudi Arabia (KSA), offers the biggest tourism revenues in the world. Regrettably, thousands of lives have been lost due to extreme cultural and language diversity that result in miscommunication, stampedes, and deaths. The aim of our research is to introduce a methodological approach applying Participatory Action Research (PAR) as a tool to help saving lives and produce Mobile-based Visual Signs (MVS) as artefacts to communicate messages of information for millions of pilgrims coming from thousands of different cultures. To prototype these MVS the “CorelDraw Suite X4” and the “Adobe Photoshop 0.7 ME” have been used interactively with groups of pilgrims, tour guides and officials. Using both of PAR and technology helped engaging pilgrims and locals during the design stage as well as in evaluating MVS as messages for communication in Hajj. In this paper, we show how these MVS reflect different cultural meanings, which we harmonized in a commonly accepted form. As crowd control is an international problem our research developed several techniques within PRA, used prototyping technologies and visual dialogue analysis, giving the opportunity for wider application in similar tourism and pilgrimage places suffering from similar problems
Patient safety initiatives in Central and Eastern Europe: A mixed methods approach by the LINNEAUS collaboration on patient safety in primary care.
No full textBACKGROUND: Despite patient safety being recognized as an important healthcare issue in the European Union, there has been variable implementation of patient safety initiatives in Central and Eastern Europe (CEE). OBJECTIVE: To assess the status of patient safety initiatives in countries in CEE; to describe a process of engagement in Poland, which can serve as a template for the implementation of patient safety initiatives in primary care. METHODS: A mixed methods design was used. We conducted a review of literature focusing on publications from CEE, an inventory of patient safety initiatives in CEE countries, interviews with key informants, international survey, review of national reporting systems, and pilot demonstrator project in Poland with implementation of patient safety toolkits assessment. RESULTS: There was no published patient safety research from Albania, Belarus, Greece, Latvia, Lithuania, Romania, or Russia. Nine papers were found from Bulgaria, Croatia, the Czech Republic, Poland, Serbia, and Slovenia. In most of the CEE countries, patient safety had been addressed at the policy level although the focus was mainly in hospital care. There was a dearth of activity in primary care. The use of patient improvement strategies was low. CONCLUSION: International cooperation as exemplified in the demonstrator project can help in the development and implementation of patient safety initiatives in primary care in changing the emphasis away from a blame culture to one where greater emphasis is placed on improvement and learning
