EFFECT OF WASHING ON DELTAMETHRIN CONCENTRATION AND BIO-EFFICACY OF INSECTICIDE-TREATED MOSQUITO NETS

The deltamethrin impregnated mosquito nets not only prevent but also control malaria, dengue fever and other vector-bone diseases. However, the deltamethrin concentration and bio-efficacy of mosquito nets can reduce due to washing. The purpose of this study is to investigate the effect of washing on deltamethrin concentration and bio-efficacy of military insecticide-treated mosquito nets. High Performance Liquid Chromatography method was used for the determination of deltamethrin in mosquito-nets. Then, the WHO recommended cone and excito-chamber methods were used to determine the bio-efficacy of mosquito nets. The deltamethrin concentrations in the mosquito-net were after no wash (4590±58.54 ppm), 1× wash (4020±47.39 ppm), 2× wash (3225±45.22 ppm), 3× wash (2771±107.5 ppm), 4× wash (2657±58.59 ppm), 5× wash (1835±47.55 ppm), 10× wash (957±34.85 ppm), 15× wash (197±22.54 ppm) and 20× wash (87±23.75 ppm). The mosquito knockdown effects were reduced by washing of net (no wash to 20× wash) after 60 minutes and 6 hours exposure range from 90-40% and 100-70%. The mosquito mortality rate was reduced by washing of net (no wash to 20× wash) after 24 hours exposure were reduced range from 100-80%. The mosquito repellent action was reduced by washing of net (no wash to 20× wash) after 10 minutes and 24 hours exposure, range from 90-30% and 100-60%. The effective bio-efficacy level was found in 5×wash (1835±47.55 ppm of deltamethrin).Therefore, mosquito net should be impregnated again after the 5× wash to obtain the best protection on the public from mosquito bite

Modelling and Forecasting Volatility of Equity Market Indices And Gold Using Univariate GARCH Models: Evidence from Singapore

This paper estimates and forecasts the conditional volatility of Singaporean equity indices namely STI, FSTS_SI, FSTM_SI, and gold quoted in Singaporean dollar (XAUSGD) by using GARCH (1,1), GJR-GARCH (1,1), and EGARCH (1,1) models. The period of the daily return data ranges from 2nd September 1999 to 31st July 2020 (5457 data points) for each equity index and from 4th January 2000 to 31st July 2020 (5369 data points) for XAUSGD. The objectives of this study are to check the presence of the leverage effect in the return series and to investigate which model performs the best for the purpose of estimating and forecasting the conditional volatility. Form the estimation results, it is found that the leverage effect is present in all the equity indices, except for XAUSGD. GJR-GARCH (1,1) performs the best in the conditional volatility estimation for the equity indices, while GARCH (1,1) performs the best for XAUSGD based on the SIC criterion. For best forecasting model selection based on the minimum RMSE value, GARCH (1,1) model provides the best forecast for the equity indices while EGARCH (1,1) performs the best for XAUSGD

Factors Associated With Age of Diagnosis Among Myanmar Children with Autism Spectrum Disorders

This study aimed to find out the average age of diagnosis, and factors associated with the age of diagnosis, among Myanmar children with Autism Spectrum Disorders. A cross-sectional descriptive study involving 84 children from two private special schools, namely New World and Light House. All children who were diagnosed as ASD, according to DSM-IV criteria, were involved in this study. Data was collected from the caregivers by face-to-face interviewing. Physical examinations and investigations were done as necessary. Results: A total of 84 children with ASD were included in this study. The mean age of diagnosis was 3.5 years old. The minimum age of diagnosis was 1 year old and the maximum was 6 years old. There were significant findings regarding factors associated with the age of diagnosis. A higher educational standard of the child’s father, and some autism specific signs such as lack of pointing out objects of interest, and poor response to name being called, were associated with an earlier age of diagnosis of autism spectrum disorders. The presence of persistent preoccupation with parts of objects, the presence of selective eating habits and comorbid conditions like epilepsy and global delay, had been found to delay the age of diagnosis of ASDs. This study revealed information regarding the age of diagnosis among Myanmar children with ASD, and factors associated with the age of diag-nosis. Although this study could not represent the whole population, due to its limitation in sampling size and study area, the findings will contribute to future research being done in different places, including urban, as well as rural areas, with larger populations, which would result in a later age of diagnosis. Identified discrepancies in the age of diagnosis based on certain socio-demographic and clinical variables highlight the need for coordinated strategies for early detection of autism spectrum disorders

Petrogenetic interpretation of granitoid rocks using multicationic parameters in the Sanggau Area, Kalimantan Island, Indonesia

Granitoid rock compositions from a range of tectonic environments are plotted on a multicationic diagram, based on major and trace element geochemistry and K-Ar dating. This shows that there is a different tectonic nature, rock affinity and suites. The basement granitoid rocks are ranging from diorite to granite composition. They appear to the products of crystallization differentiation of a calc-alkaline magma of island affinity and range to metaluminous granites, granodiorite and tonalite. The tectonic setting has two kinds which are subduction and post-subduction. The geochemical interpretation, origin and melting of mechanism and tectonic setting shows the types of granitoid are M and I-M type. The basement of granite and granodiorite are a segment of island arc that were happened the Sintang Intrusion as post subduction or syn-collision tectonic setting. Keywords: Petrogenetic, tectonic, affinity, Sintang Intrusion, Kalimanta

The Influence of Advertising to the Purchase Intention of Mobile Phone in Taiwan

Consumer purchase intention is one of the key factors affecting companies advertising strategy. Advertising is a pervasive influence in our daily lives. It is urged that, to enhance communication and persuasion, marketers should seek a cognitive, affective, brand attitude or behavioral response through the exposure of advertisement. This paper is to study how ways of advertising influence on the purchase intention of Taiwan University students. Each person couldhave different reasons and motifs (preference) in choosing brand of mobile phones. Therefore, it is interesting to explore the influence of advertising to the purchase intention of Taiwan university students. Three questions are asked; How Taiwan university students react to the advertising? What factors influence the purchase intention of Taiwan university students? And what are the students’ reactions to brand attitude

Prevalence and Risk Factors of Eye Problems among Older People in Central Tropical Region, Naypyitaw Union Territory, Myanmar

Purpose:Vision is essential one and it is proximately linked with their quality of life. In the meantime, older populations are increasing rapidly in the whole world and thus, age-related macular degeneration, glaucoma, cataract and diabetic retinopathy are becoming common. Hot and dusty environment, inadequate access to water and poor facial hygiene are risk factors for blindness. Design: Lewe Township was purposively selected due to its high prevalent on eye problems. This cross-sectional study was conducted and simple random sampling was applied to achieve desired sample size. The structured questionnaires were used to collect data including screening of eye problems from 414 older population. Frequency, percentage, mean, SD and other descriptive analysis were determined and chi-square test for associations was constructed. Findings: Cataract was the highest prevalence rate with 40.8% followed by refractive error (27.3%) and pterygium (12.8%) among older people population in research area. While knowledge level indicated good level (88.4%), good attitude level (21.3%) and good practice level (27.1%) were noticeably low among older people. In the meantime, there were significantly associations between age (p=0.003) and education level (p=0.001) with knowledge level of older people while age (p=0.001), education level (p=<0.001), occupation (p=0.038) showed statistically association with attitude level. Originality:The study noticed that higher prevalence of eye problems while relatively poor level of eye care seeking practice and unawareness on risk factors in targeted community. Knowledge and awareness for changing attitude about eye problems, eye care seeking behavior and preventive practices should be accomplished more

Prevalence of Depression and its Associated Factors Among Adults during Third Wave of COVID-19 Pandemic in Malaysia, 2021

Malaysia recently entered third-wave of COVID-19 pandemic starting from October 2020 to end of January 2021. Therefore, objective of our study was to identify the prevalence of depression and its associated factors among adults during third wave of COVID-19 pandemic in Malaysia. A total of 1468 Malaysian adults participated in this cross-sectional web-based survey. A standardized questionnaire was generated using the Google Form, and the link was shared through social media such as Facebook, Twitter, Instagram and WhatsApp. Patient Health Questionnaires (PHQ-9) was used to assess the levels of depression. Among 1468 participants, 320 (22 %) and 358 (24.6 %) indicated to have moderate to severe depression during third-wave of COVID-19 in Malaysia. Multiple predictors were identified that contributed to depression. These included female gender, family’s source income affected by the pandemic, do not perform exercise, victim of abuse and those with family and/or friends infected with COVID-19 virus. COVID-19 pandemic had caused the implementation of lockdown and physical distancing in Malaysia and nations across the globe. The pandemic had brought serious negative impacts on mental health of the adults especially depression especially during third wave of pandemic. The findings of our study suggested that new interventions or strategies are needed to be developed to address the severity of depression among Malaysian adults

Experimental and numerical analysis on the thermal performance of the aluminium absorber

The absorber is a vital part of a solar air collector and has a significant impact on the overall efficiency of a solar air heating unit. The objective of this research is to examine and compare the performance of two distinct aluminium absorbers with and without aluminium fins by using experimental and numerical (computational fluid dynamics – CFD) methods. The studies were conducted in Mandalay, Myanmar, which is located at latitude 21.98° N and longitude 96.1° E, during December 2022. A plate absorber solar air collector (PASAC) and finned absorber solar air collector (FASAC) with the same absorber area of 0.889 m2 are compared in terms of their thermal performance. At a mass flow rate of 0.0389 kg/s, the average thermal efficiency, as computed numerically, is 53.5 % for FASAC, and the experimental results show a thermal efficiency of 54.2 %. Similarly, for PASAC, the numerical computation yields an average thermal efficiency of 44.4 %, while the experimental results indicate a thermal efficiency of 47.3 %. The FASAC outperforms PASAC in terms of thermal performance. The improved thermal performance of the double-pass solar air collectors with aluminium-finned absorbers can be advantageous for employment as a drying process unit

Teleneurology based management of infantile spasms during COVID-19 pandemic: A consensus report by the south Asia allied west syndrome research group

With telehealth services rescuing patients with chronic neurological disorders during the COVID-19 pandemic, there is a need for simplified teleneurology protocols for neurological disorders in children. Infantile spasms is an epileptic encephalopathy where treatment lag is a significant predictor of outcome. It is one such condition where telemedicine can make a remarkable difference when in-person consultations are delayed or are not possible. However, the adverse effect profile of the first-line therapeutic options, the need for frequent follow-up, underdeveloped telemedicine services, lack of a rational protocol, poor awareness about infantile spasms, a lesser level of parental understanding, and scarcity of pediatric neurologists are the major hurdles in developing countries. This paper provides a teleneurology based approach for the management of infantile spasms in developing countries during the COVID-19 pandemic. The cornerstones of this approach include the fundamental principles of management of infantile spasms, decentralization of patient care to local health providers, efforts for improving sensitivity and specificity of diagnosis, early initiation of first-line therapeutic options, and constant motivation of parents and local health providers to be vigilant for therapeutic response, adverse effects of therapy, and infections

Factors associated with psychological distress among Myanmar residents during COVID-19 pandemic crises

Background: COVID-19 pandemic reached a public health emergency status of international concern. The impacts and events associated with this were associated with adverse psychological impacts among the general public globally. This study aimed to determine the prevalence of psychological distress and to identify predictors associated with psychological distress due to the COVID-19 pandemic among the population in Myanmar. Design and Methods: A cross-sectional survey was conducted from March to April 2020 among adults, 18 years old and above, who reside in Myanmar through a structured questionnaire distributed in social media platforms. Univariate and Bivariate analyses were used to estimate the prevalence of COVID-19 Peritraumatic Distress Index (CPDI) symptoms and to test the associations between CPDI and the exposure variables. Logistic Regression Analysis was done to identify significant predictors of distress. Results: There were 530 participants in this study.37.4% of them did not have psychological distress,55.6% experienced mild to moderate psychological distress, and 7% experienced severe psychological distress due to COVID-19 pandemic. Simple and Multiple Logistic Regression Analyses were performed to determine the factors associated with psychological distress due to COVID-19. Conclusions: It was shown that the self-employed group and age group older than 45 years old had more psychological distress than others. However, Buddhists and people from the capital city had less distress than other religions and districts. This study recommends the government to develop better strategies for self-employed groups, elders, and the poor for a support, relief, and resettlement of their ruined status