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The Effect of Group Participatory Learning Process on Knowledge, Attitude and Practice for Lead Contamination Prevention on Electrical Equipments and Electronic Devices Repairmen and Work Environment in the Area of Nakhonratchasima Province, Thailand
Weerapol Wongpraphan,Adisak Singseewo,Tawatchai Thanee,Chantana Padungtod
The Social Sciences , 2013, DOI: 10.3923/sscience.2010.202.207
Abstract: This research has a purpose to educate the effect of group participatory learning process on knowledge, attitude and practice for lead contamination prevention on electrical equipments and electronic devices repairmen and work environment in the area of Nakhonratchasima Province, Thailand. There were 39 volunteers as the example group in this research by the researcher producing a training plan and questionnaire relating to general information, knowledge, attitude and practice also finding a qualitative instrument in order to gather information before the training such as interview and soil powder collection at work places and sent them to laboratory to be investigated and analyzed. Furthermore, the training operation was done by the group of participatory learning process with operative occupational health with 3 steps as following; step1: Health Education, step 2: Job Safety Analysis and step 3: Evaluation of Participation. Four months operation were used in repeatedly gathering information after finished the process of informative analysis by Percentage (%), Mean (), Standard Deviation (SD) and Statistic Comparison which used t-test and F-test (One-way ANOVA). The result found that after had training programme, most of repairmen have more general and each aspects of knowledge, attitude and practice on lead contamination prevention than before taking the programme statistically significant rate of (p<0.05) and importantly, the contaminated lead level in soil powder after the training programme was less than before taking the programme statistically significant rate of (p<0.05). Effectively, the process of group participatory learning was applied in operative process of sanitary profession which making more knowledge, attitude and practice in repairmen s lead contamination prevention as well as the related government sectors should considerably put this form of training into workers health improvement action relating to lead contamination safety and must be friendly to the environment.
Tertiary Prevention of Hypertension Through Empowerment Health Behavior of Ambulatory Patients at Selected Primary Care Units of Nakhonratchasima Province, Thailand
Bundit Wannaprapan,Wirat Pansila,Chalermpol Tansakul,Frank-Peter Shelp
Pakistan Journal of Social Sciences , 2012, DOI: 10.3923/pjssci.2012.63.68
Abstract: Incidence of hypertension has remained relatively high in Nakhonratchasima province and still being top priority chronic disease of provincial health problems. The quasi-experimental research pre-test, post-test two groups design was conducted for this research. Tertiary prevention of hypertension through empowerment health behavior was objective for improve knowledge about and understand, health belief, practice of life-style modification and decrease blood pressure. The empowerment process intervention was applied in hypertensive patients of experimental group those were selected by purposive sampling and matching technique with the control group those were 40 subjects in each group. Data was collected from the experimental group at pre-test, post-test immediately after the end of the 4 days intervention program, after 6 months at follow up and in the control group at pre-test and post-test after 6 months later. The data were analyzed by using a statistical package, descriptive statistics, paired t-test and in dependent t-test. The results indicated that the mean scores of knowledge about and understand, health belief and practice of life-style modification at immediately the 4 days intervention and post-test 6 months were significantly higher than those at pre-test and control group (p<0.001). The mean scores of systolic and diastolic blood pressure in experimental group at immediately the 4 days intervention and post-test 6 months were significantly lower than those at pre-test and control group (p<0.001). For conclusion, the 4 days empowerment process intervention that improve health behavior for control blood pressure. Thus, the hypertensive patients should be followed up continuously and must receive proper health behavior program for sustainable.
Analysis of Bacterial Contamination in Anesthetic Equipments in Operation Room of Vali-E-Asr Hospital of Fasa; Efficiency of Disinfection Methods
Abbas Abdollahi,saeid khademi
Journal of Fasa University of Medical Sciences , 2011,
Abstract: Background & Objectives: Anesthetic equipments could be one of the factors transmitting infection in a surgical operation. We could be prevent infection transmission to a great extend, by providing efficient methods of disinfection of anesthetic equipments. The purpose of the present research is to analyze the bacterial contamination in anesthetic equipment in operation rooms of Vali-e-Asr hospital in Fasa city, Fars province, and evaluate the efficiency of the applied disinfection methods. Materials & Methods: In this cross-sectional & analytical study, sampling from anesthetic equipment was done by sterile swap and culture on nutrient media, irregularly and randomly, before and after using and washing tools. Used anesthetic equipment in such operation rooms have been washed with Betadine 7.5% by experts and technicians of anesthetic section and were prepared for the next operation. Results: Total contamination was 2.3% in 210 samples taken. 5 culture items indicated the existence of bacterial contamination, among which 2 contamination cases were observed in nasal airway (coagulase negative Staphylococcus, non pathogen Neisseria), 2 contamination cases in red rubber endotracheal tube (nonpathogen Neisseria and Klebsiella pneumonia) and 1 contamination case in oxygen mask (Escherichia coli). Conclusion: The very low level of contamination (20-85% contamination in anesthetic equipments) in our research is probably due to application of a appropriate disinfection method used by educated personnel in operation rooms. This could have a significant role in decreasing the infection rate in one hand and decreasing expenses and time on the other hand.
Approximation Algorithms for Movement Repairmen  [PDF]
MohammadTaghi Hajiaghayi,Rohit Khandekar,M. Reza Khani,Guy Kortsarz
Computer Science , 2013,
Abstract: In the {\em Movement Repairmen (MR)} problem we are given a metric space $(V, d)$ along with a set $R$ of $k$ repairmen $r_1, r_2, ..., r_k$ with their start depots $s_1, s_2, ..., s_k \in V$ and speeds $v_1, v_2, ..., v_k \geq 0$ respectively and a set $C$ of $m$ clients $c_1, c_2, ..., c_m$ having start locations $s'_1, s'_2, ..., s'_m \in V$ and speeds $v'_1, v'_2, ..., v'_m \geq 0$ respectively. If $t$ is the earliest time a client $c_j$ is collocated with any repairman (say, $r_i$) at a node $u$, we say that the client is served by $r_i$ at $u$ and that its latency is $t$. The objective in the (\smr{}) problem is to plan the movements for all repairmen and clients to minimize the sum (average) of the clients latencies. The motivation for this problem comes, for example, from Amazon Locker Delivery \cite{amazon} and USPS gopost \cite{gopost}. We give the first $O(\log n)$-approximation algorithm for the \smr{} problem.
The frequency rate of Toxocara species contamination in soil samples from public yards in a urban area "Payathai", Bangkok, Thailand
Wiwanitkit, Viroj;Waenlor, Weerachit;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2004, DOI: 10.1590/S0036-46652004000200011
Abstract: toxocara species are most common roundworms of canidae and felidae. human toxocariasis develops by ingesting of embryonated eggs in contaminated soil. there is no previous report of toxocara contamination in the soil samples from the public areas in bangkok. for this reason our study have been carried out to examine the frequency of toxocara eggs in public yards in bangkok, thailand. a total of 175 sand and clay samples were collected and examined for parasite eggs. according to this study, toxocara eggs were detected from 10 (5.71%) of 175 soil samples. the high rate of contamination in this study implies the importance of the control of this possible zoonotic disease: control of abandon of dogs and cats, is still necessary.
The frequency rate of Toxocara species contamination in soil samples from public yards in a urban area "Payathai", Bangkok, Thailand  [cached]
Wiwanitkit Viroj,Waenlor Weerachit
Revista do Instituto de Medicina Tropical de S?o Paulo , 2004,
Abstract: Toxocara species are most common roundworms of Canidae and Felidae. Human toxocariasis develops by ingesting of embryonated eggs in contaminated soil. There is no previous report of Toxocara contamination in the soil samples from the public areas in Bangkok. For this reason our study have been carried out to examine the frequency of Toxocara eggs in public yards in Bangkok, Thailand. A total of 175 sand and clay samples were collected and examined for parasite eggs. According to this study, Toxocara eggs were detected from 10 (5.71%) of 175 soil samples. The high rate of contamination in this study implies the importance of the control of this possible zoonotic disease: control of abandon of dogs and cats, is still necessary.
Heavy Metals Contamination in Sediments along the Eastern Coast of the Gulf of Thailand  [PDF]
Waewtaa Thongra-ar
EnvironmentAsia , 2008,
Abstract: Levels of Hg, Cd, Pb, Zn, Cu, Ni, Fe and Mn in surface sediments were investigated in 52 stations along the Eastern Coast of the Gulf of Thailand. The sediment samples were collected in March 2004. Concentrations of the heavy metals ranged from 0.005 - 0.121 microgram g-1 for Hg, <0.006 - 0.19 microgram g-1 for Cd, 1.69 - 66.3 microgram g-1 for Pb, 7.48 - 131 ±g g-1 for Zn, 14.4 - 103 microgram g-1 for Cu, <0.64 - 79.9 microgram g-1 for Ni, 1.17 - 92.8 milligram g-1 for Fe and 0.03 - 1.71 mg g-1 for Mn. Only Pb and Cu in the sediments exceeded the effects range low of the proposed marine and coastal sediment quality guidelines for Thailand. The calculated geoaccumulation index (Igeo) showed that the sediments were moderately polluted with Pb in some locations, particularly at Map Ta Phut Industrial Estate, and were slightly polluted with Cu, Zn and Mn at some sampling stations. All metals (except Cu) were associated with each other in the sediments. Organic matter, clay and silt were the major sediment components responsible for most metals sorbed in the study area.
Atrazine Contamination and Potential Health Effects on Freshwater Mussel Uniandra contradens Living in Agricultural Catchment at Nan Province, Thailand  [PDF]
Tongchai Thitiphuree,Jirarach Kitana,Pakorn Varanusupakul,Noppadon Kitana
EnvironmentAsia , 2013,
Abstract: Seasonal cultivation in northern part of Thailand leads to widely uses of agrochemicals especially atrazine herbicide. To examine whether an intensive use of atrazine could lead to contamination in aquatic environment, sediment and water were collected from an agricultural catchment in Nan Province during 2010-2011 and subjected to analysis for atrazine by GC-MS. The results showed that detectable levels of atrazine were found in water (0.16 μg/ml) and sediment (0.23 μg/g) of the catchment. To monitor potential effects of atrazine on aquatic animals, a freshwater mussel Uniandra contradens was used as a sentinel species for bioaccumulation and potential health effects. Mussels collected from the catchment during 2010-2011 were subjected to analysis for atrazine residue in tissue and condition factor based on body weight and shell length. The results showed that detectable levels of atrazine were found in mussel tissue with the highest level (8.40 2.06 ng/g) in late wet season when runoff from heavy rain was evidenced. Condition factor, an indicative of overall health, showed a significant negative correlation with atrazine residue in the tissue. This information could be used as part of the monitoring program for herbicide contamination and potential health effects in agricultural environment.
Machine Repair Problem with K-Type Warm Spares, Multiple Vacations for Repairmen and Reneging
Supriya Maheshwari,,Pankaj Sharma,M. Jain
International Journal of Engineering and Technology , 2010,
Abstract: In this paper, a multi-repairmen machine repair problem comprising of M operating units together with k type of warm spares has been investigated. The failed units are immediately attended by repairmen if available. When there are no failed units in the queue for repair, the repairmen leave for a vacation of random length. When the vacation period is terminated, the repairmen return and check for any failed unit in the queue. If the queue is non-empty, the repairmen start repairing of failed units until the queue becomes empty, andagain they leave for another vacation. The repair rate of the repairmen depends upon the workload. The caretaker of the failed machines may renege on finding all repairmen busy. The steady state queue size distribution and other important performance measures have been derived using matrix recursive approach. Furthermore, a numerical example provides a profound understanding of the sensitivity of parameters with respect to various performance measures.
Biomonitoring of Mercury Contamination at Petroleum Production Platforms in the Gulf of Thailand using Transplanted Green Mussel, Perna viridis  [PDF]
Chatree Ritthong,Narongsak Puanglarp
EnvironmentAsia , 2011,
Abstract: Assessment of mercury contamination was conducted using transplanted green mussels (Perna viridis). Mussels were first exposed to HgCl2 at 0.5, 1.0, 2.5, and 5.0 nmol/L for 8 weeks at laboratory conditions. The result showed that Hg level in the water decreased rapidly, while Hg in mussels increased coincidentally with the applied doses. After 8 weeks the Hg, levels in tissue were a thousand-fold higher than that in the water. Mussels were then transplanted to 3 petroleum production platforms for field study. The result revealed that survival and growth rates of transplanted mussels at all 3 stations were in close to each other but significantly lower than that from the reference site. Hg concentrations in the tissues of transplanted mussels ranged from less than 0.010 to 0.173 μg/g, and Hg concentrations in mussel tissues from all stations were significantly increased within 2 months, while Hg levels in mussel tissues from reference site were not changed. Hg levels of transplanted mussels increased with increasing depths of the water. The transplanted mussels showed no signs of any physical anomalies, indicating that transplanted mussels could be maintained for up to 3 months in an un-natural habitat, such as petroleum production platforms, where food is much less abundant.
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