Displaying publications 81 - 100 of 144 in total

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  1. Jeyaratnam J, Lun KC, Phoon WO
    Bull World Health Organ, 1987;65(4):521-7.
    PMID: 3500805
    The study investigated the extent of acute pesticide poisoning in selected agricultural communities in Indonesia, Malaysia, Sri Lanka and Thailand, as well as the contributing factors, because it is believed that this type of poisoning is a major problem in developing countries, but not in the industrialized countries, despite their extensive use of pesticides. The study confirmed the existence of this problem, which was found to be due to inadequate knowledge of the safe practices in the use of pesticides among users and to the lack of suitable protective clothing for use by agricultural workers in hot and humid climates.
    Matched MeSH terms: Sri Lanka
  2. Soc Mark Forum, 1984;1(4):1,5.
    PMID: 12266328
    Matched MeSH terms: Sri Lanka
  3. Konradsen F, van der Hoek W, Amerasinghe FP, Mutero C, Boelee E
    Acta Trop, 2004 Jan;89(2):99-108.
    PMID: 14732233
    Traditionally, engineering and environment-based interventions have contributed to the prevention of malaria in Asia. However, with the introduction of DDT and other potent insecticides, chemical control became the dominating strategy. The renewed interest in environmental-management-based approaches for the control of malaria vectors follows the rapid development of resistance by mosquitoes to the widely used insecticides, the increasing cost of developing new chemicals, logistical constraints involved in the implementation of residual-spraying programs and the environmental concerns linked to the use of persistent organic pollutants. To guide future research and operational agendas focusing on environmental-control interventions, it is necessary to learn from the successes and failures from the time before the introduction of insecticides. The objective of this paper is to describe the experiences gained in Asia with early vector control interventions focusing on cases from the former Indian Punjab, Malaysia and Sri Lanka. The paper deals primarily with the agricultural engineering and land and water management vector control interventions implemented in the period 1900-1950. The selected cases are discussed in the wider context of environment-based approaches for the control of malaria vectors, including current relevance. Clearly, some of the interventions piloted and implemented early in the last century still have relevance today but generally in a very site-specific manner and in combination with other preventive and curative activities. Some of the approaches followed earlier on to support implementation would not be acceptable or feasible today, from a social or environmental point of view.
    Matched MeSH terms: Sri Lanka
  4. Muir CS, Nectoux J
    Isr. J. Med. Sci., 1971 Dec;7(12):1373-9.
    PMID: 5144585
    Matched MeSH terms: Sri Lanka
  5. Shaper AG
    Pathol Microbiol (Basel), 1970;35(1):26-35.
    PMID: 5472024
    Matched MeSH terms: Sri Lanka
  6. Chave J, Condit R, Muller-Landau HC, Thomas SC, Ashton PS, Bunyavejchewin S, et al.
    PLoS Biol, 2008 Mar 04;6(3):e45.
    PMID: 18318600 DOI: 10.1371/journal.pbio.0060045
    In Amazonian tropical forests, recent studies have reported increases in aboveground biomass and in primary productivity, as well as shifts in plant species composition favouring fast-growing species over slow-growing ones. This pervasive alteration of mature tropical forests was attributed to global environmental change, such as an increase in atmospheric CO2 concentration, nutrient deposition, temperature, drought frequency, and/or irradiance. We used standardized, repeated measurements of over 2 million trees in ten large (16-52 ha each) forest plots on three continents to evaluate the generality of these findings across tropical forests. Aboveground biomass increased at seven of our ten plots, significantly so at four plots, and showed a large decrease at a single plot. Carbon accumulation pooled across sites was significant (+0.24 MgC ha(-1) y(-1), 95% confidence intervals [0.07, 0.39] MgC ha(-1) y(-1)), but lower than reported previously for Amazonia. At three sites for which we had data for multiple census intervals, we found no concerted increase in biomass gain, in conflict with the increased productivity hypothesis. Over all ten plots, the fastest-growing quartile of species gained biomass (+0.33 [0.09, 0.55] % y(-1)) compared with the tree community as a whole (+0.15 % y(-1)); however, this significant trend was due to a single plot. Biomass of slow-growing species increased significantly when calculated over all plots (+0.21 [0.02, 0.37] % y(-1)), and in half of our plots when calculated individually. Our results do not support the hypothesis that fast-growing species are consistently increasing in dominance in tropical tree communities. Instead, they suggest that our plots may be simultaneously recovering from past disturbances and affected by changes in resource availability. More long-term studies are necessary to clarify the contribution of global change to the functioning of tropical forests.
    Matched MeSH terms: Sri Lanka
  7. Wilder-Smith A, Tissera H, AbuBakar S, Kittayapong P, Logan J, Neumayr A, et al.
    Glob Health Action, 2018;11(1):1549930.
    PMID: 30560735 DOI: 10.1080/16549716.2018.1549930
    BACKGROUND: Dengue fever persists as a major global disease burden, and may increase as a consequence of climate change. Along with other measures, research actions to improve diagnosis, surveillance, prevention, and predictive models are highly relevant. The European Commission funded the DengueTools consortium to lead a major initiative in these areas, and this review synthesises the outputs and findings of this work conducted from 2011 to 2016. Research areas: DengueTools organised its work into three research areas, namely [1] Early warning and surveillance systems; [2] Strategies to prevent dengue in children; and [3] Predictive models for the global spread of dengue. Research area 1 focused on case-studies undertaken in Sri Lanka, including developing laboratory-based sentinel surveillance, evaluating economic impact, identifying drivers of transmission intensity, evaluating outbreak prediction capacity and developing diagnostic capacity. Research area 2 addressed preventing dengue transmission in school children, with case-studies undertaken in Thailand. Insecticide-treated school uniforms represented an intriguing potential approach, with some encouraging results, but which were overshadowed by a lack of persistence of insecticide on the uniforms with repeated washing. Research area 3 evaluated potential global spread of dengue, particularly into dengue-naïve areas such as Europe. The role of international travel, changing boundaries of vectors, developing models of vectorial capacity under different climate change scenarios and strategies for vector control in outbreaks was all evaluated.

    CONCLUDING REMARKS: DengueTools was able to make significant advances in methods for understanding and controlling dengue transmission in a range of settings. These will have implications for public health agendas to counteract dengue, including vaccination programmes.

    OUTLOOK: Towards the end of the DengueTools project, Zika virus emerged as an unexpected epidemic in the central and southern America. Given the similarities between the dengue and Zika viruses, with vectors in common, some of the DengueTools thinking translated readily into the Zika situation.

    Matched MeSH terms: Sri Lanka
  8. Sun Q, Wang K, Yoshimura A, Doi K
    Theor Appl Genet, 2002 Jun;104(8):1335-1345.
    PMID: 12582589
    The genetic differentiation of nuclear, mitochondrial (mt) and chloroplast (cp) genomes was investigated by Southern and PCR analysis using 75 varieties of cultivated rice ( Oryza sativa L.) and 118 strains of common wild rice (CWR, Oryza rufipogon Griff.) from ten countries of Asia. The distinguishing differences between the Indica and Japonica cultivars were detected both in the nuclear genome and the cytoplasmic genome, confirming that the Indica-Japonica differentiation is of major importance for the three different classes of genome in cultivated rice. This differentiation was also detected in common wild rice with some differences among the genome compartments and the various regions. For nuclear DNA variation, both Indica-like and Japonica-like types were observed in the Chinese CWR, with the latter more-frequent than the former. No Japonica-like type was found in South Asia, and only two strains of the Japonica-like type were detected in Southeast Asia, thus the Indica-like type is the major type among South and Southeast Asian CWR. For mtDNA, only a few strains of the Japonica-like type were detected in CWR. For cpDNA, the Japonica type was predominant among the CWR strains from China, Bangladesh and Burma, while the Indica type was predominant among the CWR strains from Thailand, Malaysia, Cambodia and Sri Lanka, and both types were found in similar frequencies among the Indian CWR. Altogether, however, the degree of Indica-Japonica differentiation in common wild rice was much-less important than that in cultivated rice. Cluster analyses for nuclear and mitochondrial DNA variation revealed that some CWR strains showed large genetic distances from cultivated rice and formed clusters distinct from cultivated rice. Coincidence in the genetic differentiation between the three different classes of genome was much higher in cultivated rice than in CWR. Among the 75 cultivars, about 3/4 entries were "homoeotype" showing congruent results for nuclear, mt and cpDNA regarding the Indica-Japonica differentiation. In CWR, the proportions of homoeotypes were 5.7%, 15% and 48.8% in China, South Asia and Southeast Asia, respectively. Based on the average genetic distance among all the strains of CWR and cultivated rice for nuclear and mitochondrial genomes, the variability of the nuclear genome was found to be higher than that of the mitochondrial genome. The global pattern based on all genomes shows much-more diversification in CWR than that in cultivated rice.
    Matched MeSH terms: Sri Lanka
  9. Soemantri D, Karunathilake I, Yang JH, Chang SC, Lin CH, Nadarajah VD, et al.
    Korean J Med Educ, 2020 Sep;32(3):243-256.
    PMID: 32723988 DOI: 10.3946/kjme.2020.169
    Selecting the right applicants is an important part of medical student admission. While one universally accepted selection criterion is academic capacity, there are other criteria such as communication skills and local criteria (e.g., socio-cultural values) that are no less important. This article reviews the policies and methods of selection to medical schools in seven countries with varying socio-economic conditions and healthcare systems. Senior academics involved in medical education in Indonesia, Japan, Malaysia, the Philippines, Singapore, Sri Lanka, and Taiwan completed a pre-agreed pro-forma per each country to describe the country's admission policies and methods. The details were then compared and contrasted. This review identifies tension between many of the policies and methods used in medical school admissions, such as between the need to assess non-cognitive abilities and widen access, and between the need for more medical professionals and the requirement to set high entry standards. Finding the right balance requires careful consideration of all variables, including the country's human resource needs; socio-economic status; graduates' expected competencies; and the school's vision, mission, and availability of resources.
    Matched MeSH terms: Sri Lanka
  10. Chokhani R, Muttalif AR, Gunasekera K, Mukhopadhyay A, Gaur V, Gogtay J
    Pulm Ther, 2021 Jun;7(1):251-265.
    PMID: 33855650 DOI: 10.1007/s41030-021-00153-w
    INTRODUCTION: There is much recent data from Nepal, Sri Lanka and Malaysia that can help us understand the practice patterns of physicians regarding the diagnosis and management of chronic obstructive pulmonary disease (COPD) in these countries. We conducted this survey to understand the practice patterns of physicians related to the diagnosis and management of COPD in these three countries.

    METHODS: This questionnaire-based, observational, multicentre, cross-sectional survey was carried out with 438 randomly selected physicians consulting COPD patients.

    RESULTS: In the survey, 73.29% of the physicians consulted at least five COPD patients daily (all patients > 40 years of age). 31.14% of the COPD patients visiting their doctors were women. Among physicians, 95.12% reported that at least 70% of their patients were smokers. 34.18% of the physicians did not routinely use spirometry to diagnose COPD. Most physicians preferred a short-acting β2-agonist (SABA) (28.19%) in the Global Initiative for Chronic Obstructive Lung Disease (GOLD) Group-A and long-acting muscarinic receptor antagonist plus long-acting β2-agonist/inhaled corticosteroids (LAMA + LABA/ICS) in both the GOLD Group-C (39.86%) and Group-D (72.89%) patients. A significant number (40.67%) of physicians preferred LABA/LAMA for their GOLD Group-B patients. A pressurised metered dose inhaler (pMDI) with or without spacer was the most preferred device. Only 23.67% of the physicians believed that at least 70% of their patients had good adherence (> 80%) to therapy. Up to 54.42% of the physicians prescribed inhalation therapy to every COPD patient. Also, 39.95% of the physicians evaluated their patients' inhalation technique on every visit. Up to 52.67% of the physicians advised home nebulisation to > 10% of patients, with nebulised SABA/short-acting muscarinic receptor antagonist (SAMA) being the most preferred management choice. Most physicians offered smoking cessation advice (94.16%) and/or vaccinations (74.30%) as non-pharmacological management, whereas pulmonary rehabilitation was offered by a smaller number of physicians. Cost of therapy and poor technique were the most common reasons for non-adherence to COPD management therapy.

    CONCLUSION: Awareness of spirometry can be increased to improve the diagnosis of COPD. Though physicians are following the GOLD strategy recommendations for the pharmacological and non-pharmacological management of COPD, awareness of spirometry could be increased to improve proper diagnosis. Regular device demonstration during each visit can improve the inhalation technique and can possibly increase adherence to treatment.

    Matched MeSH terms: Sri Lanka
  11. Tan CH, Tan NH, Sim SM, Fung SY, Gnanathasan CA
    Toxicon, 2015 Jan;93:164-70.
    PMID: 25451538 DOI: 10.1016/j.toxicon.2014.11.231
    The hump-nosed pit viper, Hypanle hypnale, contributes to snakebite mortality and morbidity in Sri Lanka. Studies showed that the venom is hemotoxic and nephrotoxic, with some biochemical and antigenic properties similar to the venom of Calloselasma rhodostoma (Malayan pit viper). To further characterize the complexity composition of the venom, we investigated the proteome of a pooled venom sample from >10 Sri Lankan H. hypnale with reverse-phase high performance liquid chromatography (rp-HPLC), sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and peptide sequencing (tandem mass-spectrometry and/or N-terminal sequencing). The findings ascertained that two phospholipase A2 subtypes (E6-PLA2, W6-PLA2) dominate the toxin composition by 40.1%, followed by snake venom metalloproteases (36.9%), l-amino acid oxidase (11.9%), C-type lectins (5.5%), serine proteases (3.3%) and others (2.3%). The presence of the major toxins correlates with the venom's major pathogenic effects, indicating these to be the principal target toxins for antivenom neutralization. This study supports the previous finding of PLA2 dominance in the venom but diverges from the view that H. hypnale venom has low expression of large enzymatic toxins. The knowledge of the composition and abundance of toxins is essential to elucidate the pathophysiology of H. hypnale envenomation and to optimize antivenom formulation in the future.
    Matched MeSH terms: Sri Lanka
  12. Adlina, S., Soe, Soe Aye, Narimah, A.H.H., Nuraliza, A.S.
    MyJurnal
    On December 26, 2004, an earthquake triggered a devastating tsunami that caused death and destruction in twelve countries including India, Indonesia, Malaysia, Maldives, Seychelles, Somalia, Sri Lanka and Thailand. One of the authors was a volunteer with FELDA WAJA AMAN MALAYSIA medical relief team that served the Aceh victims from 16th February to 24th February 2005 (8 weeks post tsunami). A study to determine the pattern of health ailments was conducted among children aged 18 years and below based at Seuneubok Camp, 30 km from Banda Aceh. All respondents were from Pulau Aceh and the total number of children seen and examined was 60. About 18% had lost their fathers, 10 % had lost their mothers and 27% had lost one or more of their siblings. 77% suffered some form of health ailments. The common health ailments were diarrhea (61%), respiratory complaints (59%) and fever (20%). About 38 % of preschoolers had loss of appetite and 28% had sleep disturbances. About 35% of the elementary school children suffered from sleep disturbances, 29% of the young adolescents suffered from headaches and 24% had sleep disturbances. Nearly a quarter (24%) of all the children felt fearful and anxious about the disaster. Nevertheless, 56% of the respondents wanted to return back to Pulau Aceh, although 14 % did not want to go back. Interestingly, 73% of the children voiced their gratitude to God for having been saved from death.
    Matched MeSH terms: Sri Lanka
  13. Perkin GW
    Adv Fertil Control, 1969 Sep;4(3):37-42.
    PMID: 12146214
    Matched MeSH terms: Sri Lanka
  14. PMID: 12260380
    PIP: At the Inter-Governmental Coordinating Committee Workshop on an Integrated Approach towards Family Planning and Health Programs held at Kuala Lumpur from March 23 to 25, 1977, the feasibility of integrating family planning with nutrition and parasite control through the proper planning of motivational considerations, resource allocation and coordination was studied in detail. Discussion focused on the experience of participating countries in generating community participation in total health programs. Malaysia reported that in the expansion of the national program into the rural areas functional integration has been the approach. In Indonesia nutrition has been an important objective of maternal and child health services. A total integrated development approach has been the objective in the Philippines where family planning information-education-communication has been integrated with nutrition programs and a pilot project on integration of family planning and parasite control has been conducted. Thailand reported on the introduction of an integrated family planning and parasite control program, while Sri Lanka reported on an integrated approach that included family planning with maternity and child health services. A recommendation of the meeting was that experimental pilot projects be established which include nutrition and parasite control elements within the framework of family planning services.
    Matched MeSH terms: Sri Lanka
  15. Attanayake K, Munasinghe S, Goonewardene M, Widanapathirana P, Sandeepani I, Sanjeewa L
    Ceylon Med J, 2018 Mar 31;63(1):17-23.
    PMID: 29756422
    Aims: To estimate the gestational age and birth weight centiles of babies delivered normally, without any obstetric intervention, in women with uncomplicated singleton pregnancies establishing spontaneous onset of labour.

    Method: Consecutive women with uncomplicated singleton pregnancies, attending the Academic Obstetrics and Gynecology Unit of the Teaching Hospital Mahamodara Galle, Sri Lanka, with confirmed dates and establishing spontaneous onset of labor and delivering vaginally between gestational age of 34 - 41 weeks, without any obstetric intervention , during the period September 2013 to February 2014 were studied. The gestational age at spontaneous onset of labor and vaginal delivery and the birth weights of the babies were recorded.

    Results: There were 3294 consecutive deliveries during this period, and of them 1602 (48.6%) met the inclusion criteria. Median gestational age at delivery was 275 days (range 238-291 days, IQR 269 to 280 days) and the median birth weight was 3000 g (range1700g - 4350g; IQR 2750-3250g). The 10th, 50th and 90th birth weight centiles of the babies delivered at a gestational age of 275 days were approximately 2570g, 3050g and 3550g respectively.

    Conclusions: The median gestational age among women with uncomplicated singleton pregnancies who established spontaneous onset of labor and delivered vaginally, without any obstetric intervention, was approximately five days shorter than the traditionally accepted 280 days. At a gestational age of 275 days, the mean birth weight was approximately 3038g and the 50th centile of the birth weight of the babies delivered was approximately 3050g.

    Matched MeSH terms: Sri Lanka
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