8 research outputs found

    Dynamic Response of Mrr2 Bridge at Ampang

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    The goal of the bridge engineer is to design economical structures which are safe, durable and serviceable. Determination of the dynamic response of bridges has been the topic of numerous studies in recent years. Much of attention had been focused on maximum dynamic displacements and moments and on the distribution loads to the floor system which are the information necessary to design for adequate strength. Although humans are subjected to the vibrations of many structures, there is seldom any direct provision in design codes to ensure user comfort and usually impose restrictions upon girder depth-span ratios and upon static deflection-span ratios in the hope that these limits will provide satisfactory dynamic response. Another important concern, the comfort of those crossing the bridges, has received relatively little attention. Transportation agencies do receive occasional comments and complaints from bridge maintenance works, pedestrians and passenger in halted vehicles concerning the vibration of bridges. So, this study is conducted in order to identify the parameters that most affect the vibration of the bridge and to check the response of the MRR2 bridge that had experience a dynamic response whether it is safe or not

    Implementation of entrepreneurial skills among FPTV catering students

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    The Ministry of Entrepreneur Development launches the National Entrepreneurship Policy in the middle of the second quarter of 2019. The policy is a government effort to accelerate the country's economic growth and focus on the growth of the national entrepreneurship sector by 2020. According to the Minister of Entrepreneur Development, this policy is not only a guide to the Ministry of Entrepreneur Development but it covering all other ministries involved in entrepreneurial activities which at the same time can create over a million jobs in the next five years (Basaruddin, 2019). This policy shows that the government is committed to empowering entrepreneurship especially involving youths

    Solution for nonlinear Duffing oscillator using variable order variable stepsize block method

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    Real life phenomena found in various fields such as engineering, physics, biology and communication theory can be modeled as nonlinear higher order ordinary differential equations, particularly the Duffing oscillator. Analytical solutions for these differential equations can be time consuming whereas, conventional numerical solutions may lack accuracy. This research propose a block multistep method integrated with a variable order step size (VOS) algorithm for solving these Duffing oscillators directly. The proposed VOS Block method provides an alternative numerical solution by reducing computational cost (time) but without loss of accuracy. Numerical simulations are compared with known exact solutions for proof of accuracy and against current numerical methods for proof of efficiency (steps taken)

    Sexual dysfunction in patients with polycystic ovary syndrome in Malaysia

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    Background: Polycystic ovary syndrome (PCOS) is a combination of chronic anovulation, obesity, and hyperandrogenism and can affect sexual function in women of reproductive age. It is also associated with endometrial cancer. Our aim was to evaluate the frequency and predisposing factors of sexual dysfunction in PCOS patients. Materials and methods: In this cross-sectional study, 16 married women with a definite diagnosis of PCOS were recruited. Sexual function was assessed in the domains of desire, arousal, lubrication, orgasm, satisfaction and pain using the female sexual function index (FSFI) questionnaire. Patients were also assessed for mental health using the depression, anxiety and stress (DASS-21) questionnaire. Presence of hirsutism was assessed using the Ferriman-Gallwey (FG) scoring system. Demographic data were obtained from patients during in-person interview. Results: Sexual dysfunction was present in 62.5% of patients with the domains of arousal and lubrication particularly affected (93.8% and 87.5%, respectively). Patients with symptoms of depression and anxiety were significantly more likely to suffer sexual dysfunction than those without these symptoms (p=0.04 and p=0.03 respectively). Patients with stress symptoms reported higher orgasm dysfunction than those without (p=0.02). No significant difference in any of the FSFI score domains was observed between patients with and without hirsutism. Conclusions: PCOS patients markedly suffer from sexual dysfunction and therefore it seems appropriate to be screened for intervention. Poor mental health conditions that may be the result of infertility or other complications of PCOS should also be considered as curable causes of sexual dysfunction in these patients

    Prevalence of Polycystic Ovary Syndrome among Malaysian Female University Staff

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    Background & aim: Polycystic ovary syndrome (PCOS) is a metabolic disease with diverse etiologies. The prevalence of PCOS varies among different ethnicities and across various geographical and social settings. Scarce data exist on the prevalence of PCOS in Asia, especially in Malaysia. Regarding this, the present study was conducted to assess the prevalence of PCOS and its subtypes among the Malaysian University staff. Methods: This cross-sectional study was performed on females of reproductive age working at University Putra Malaysia, Selangor, Malaysia. The study population was selected through simple random sampling technique. The women with thyroid abnormalities or adrenal hyperplasia were excluded from the study. The participants were screened based on anthropometric measurements, medical history, blood pressure, and pelvic examination, as well as the presence of hirsutism, acne, and alopecia. The participants were also assessed for total and free testosterone levels and subjected to ultrasonography. The PCOS diagnosis was based on Rotterdam criteria. The data were analyzed using Mann-Whitney U test, t-test, Chi-square test, and logistic regression at the significance level of 0.05. Results: A total of 675 females with the mean age of 26.01±7.14 years participated in this study. The prevalence rate of PCOS was obtained as 12.6%. All PCOS subjects were detected with hyperandrogenism and polycystic ovary, while anovulation was present in only one participant (1.2%). Odds of PCOS diagnosis was significantly related to increased body mass index (OR=1.14, 95% CI: 1.05-1.25), higher waist circumference (OR=1.06, 95% CI: 1.01-1.11), hirsutism (OR=20.83, 95% CI: 5.35- 81.13), and amenorrhea (OR=0.18, 95% CI: 0.04-0.69). Conclusion: This study revealed a high prevalence of PCOS and a specific phenotype of PCOS among the Malaysian employees

    Temperature Control System For Fertigation Application

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    The aim of this project proposal is to solve an industrial problem raised by GM Peladang Sdn Bhd by providing an automated temperature controlled system equipped with automated water stirrer system for fertigation tank. GM Peladang produced vegetables and fruits using fertigation and Nutrien Film techniques. This company wish to increase their production by providing lower temperature fertilizer water to their plants. The chosen method used to solve this problem is to deliver fertilizer solution at temperature range between 20°C and 25°C is by chilled water system. The whole system will be automated inclusive with displayable measured parameters on the control panel to achieve the optimum fertilizer solution temperature for irrigation process. The lead time taken to finish this project is within six (6) months with total cost required as low as RM 27,300

    A Review on the Assessment of the Efficacy of Common Treatments in Polycystic Ovarian Syndrome on Prevention of Diabetes Mellitus

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    Objective: Polycystic ovarian syndrome (PCOS) is a common condition amongst women of reproductive age that can result in increased mortality and morbidity in women due to increased risk of diabetes mellitus and cardiovascular diseases. The aim of this systematic review was to assess the effectiveness of common treatments of PCOS on the predictors of diabetes in non-diabetic PCOS women. Materials and methods: An extensive search was performed on the publications in three medical databases including pubmed, scopus and google scholar from 1995 till 2017. The articles were screened based on their quality and included in this systematic review. A total of 25 articles including cohort, randomised controlled trial, review and meta-analysis were included in the review. Results: This systematic review revealed that the effect of lifestyle modification might be low in PCOS subjects due to high drop-out rate while the benefits of this intervention including weight and fat reduction may not be achieved by medical interventions. Metformin treatment may result in improvements in insulin sensitivity while its weight reduction effect is still not documented in PCOS subjects. Thiazolidendiones might be tolerated by the PCOS subjects and may result in similar effects as metformin but this effect should be documented by further studies. Conclusion: Combination of lifestyle modification with metformin or thiazolidinedions might improve the outcome of the prevention strategies. On the other hand this study revealed a different response to treatments in non-obese compared with obese PCOS subjects
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