The relationship between price volatility, maturity and volume of trade of the Malaysian bond market

Kajian ini cuba membuat eksplorasi ke atas kesan tempoh matang dan volum dagangan ke atas kemeruapan pasaran bon Malaysia. Bon MGS, Cagamas clan Korporat yang aktif didagangkan merupakan data yang digunakan di dalam kajian ini. Perhubungan di antara pembolehubah-pembolehubah ini seterusnya dicerap dengan menggunakan analisa regresi. Tempoh kajian ini dibahagikan kepada tiga tempoh iaitu tempoh krisis (Mac 1996-Jun I997), tempoh semasa krisis sebelum pegging (Julai 1997-Ogos 1998) dan tempoh krisis selepas pegging (September 1998-Mac 1999). Adalah didapati bahawa tidak wujud perhubungan di antara kemeruapan harga dan tempoh matang bagi bon MGS dan Cagamas tetapi bagi bon Korporat, perhubungan di antara pemboleh ubah tersebut adalah positif dalam semua tempoh masa. Keputusan kajian juga menunjukkan bagi bon Korporat apabila volum dagangan dimasukkan ke dalam persamaan regresi, perhubungan di antara tempoh matang dan kemeruapan harganya menjadi tidak signifikan kecuali bagi tempoh semasa krisis sebelum pegging

Hubungan kelikatan minyak enjin terhadap usia guna serta suhu

Kelikatan minyak enjin bergred tunggal mengalami perubahan apabila berlakunya perubahan pada suhu dan tekanan. Namun begitu, secara realiti kelikatan minyak enjin juga mengalami perubahan terhadap usia guna. Oleh itu, kajian ini memperkenalkan satu hubungan kelikatan minyak enjin terhadap perubahan suhu serta usia guna. Hubungan ini berasaskan kepada persamaan matematik empirik yang melibatkan teori pelincir Newtonan dan bukan Newtonan. Hubungan yang baru ini dikenali sebagai model kelikatan matematik (ηmath). Dalam model ini, kelikatan minyak enjin dipengaruh oleh dua faktor iaitu faktor suhu (ks) dan faktor masa (km). Nilai kedua-dua faktor ini bergantung kepada formula bahan tambah minyak enjin tersebut. Analisis reologi meter likat telah digunakan untuk mendapatkan nilai kedua-dua faktor ini. Hasil kajian menunjukkan kelikatan minyak enjin mengalami penurunan apabila usia guna meningkat. Ini dibuktikan melalui model kelikatan matematik (ηmath) dan juga analisis reologi meter likat

Optimization Of Polyhydroxyalkanoate (PHA) Production By Burkholderia Cepacia BPT1213 Using Waste Glycerol As The Sole Carbon Source

Polyhydroxyalkanoate (PHA) is touted as an environmental friendly alternative to recalcitrant petrochemical derived plastics. Due to high production cost issue, waste glycerol produced from biodiesel industry has potential as cheaper carbon source for PHA synthesis by microorganisms. The objectives of this study were to optimize and scale up the production of PHA by a local isolate, Burkholderia cepacia BPT1213, from the shake flask system to a 2.5 L bioreactor system. Throughout this study, the strain was grown in minimal salt medium (MSM) supplemented with 2% (v/v) of waste glycerol (86.70% purity), a by-product of the production biodiesel from palm oil as the sole carbon source

Prediction on optimistic and motivation factor to relapse among former drug abuse

Purpose: The objective of this study is to identify predictors (optimistic and motivation) that correspond to relapse among former drug abuse in Malaysia. Methodology: This study involves 50 former drug abuse who completed their questionnaire treatment and rehabilitation period and utilises three instruments, the Relapse Motivation Questionnaire (RMQ), Optimism used Life Orientation Test (LOT) and relaps was using the Inventory of Drug-Taking Situations (IDTS). This study uses descriptive statistical method or frequency to see the percentage for the demographic factor, while the inferential statistical method such as the Pearson correlation and multiple linear regression were used to test the research question. Main findings: Results showed that there is not any correlation between relapse towards drug addiction and optimism is (r=-0.261, p-value=.067) while there is significant correlation between relapse towards drug addiction and motivational (r= -.387**, p-value=.006) as well as motivational and optimism (r= .536**, p-value=.000). This relationship between motivational and relapse is negative between motivational and relapse while positive between motivational and optimism, which indicates that as the motivational increase the chances of relapse towards drug addiction decrease while on the other hand if motivational increase then optimism increase. Multiple regression analysis indicated that a both the variables statistically not significant and didn’t predict F (3, 46) = 57.208, p-value < .005, R2 = .789. So, without optimism, motivational behavior and strong cooperation among human beings it would be complicated to help former addicts to restart their lives as common human beings this country

An anomalous pattern of superficial branch of radial nerve - a Cadaveric case report

In the present case study, there is an anomalous pattern of superficial branch of radial nerve (SBRN) that can be recognized as an anatomical variant of the left upper limb of a 60 years old donated embalmed male cadaver in the Department of Human Anatomy, Universiti Putra Malaysia, in which the superficial branch of radial nerve supplies the extensor carpi radialis longus and extensor carpi radialis brevis muscle. The superficial branch of radial nerve gave off branch to supply the proximal fusion part of extensor carpi radialis longus and extensor carpi radialis brevis muscles immediately after bifurcation of the radial nerve into the superficial branch of radial nerve and deep branch of radial nerve. This variation is very important to the surgeon as the presence of the variant will make them more careful in dealing with nerve entrapment surgery, reconstructive surgery and in the pain management services, the variation giving indications for treatment

On the relationship between inflation rate and inflation uncertainty: an application of the GARCH family models

The main objective of this paper is to explore the varying volatility dynamic of inflation rate in Malaysia for the period from January 1980 to December 2004. The GARCH, GARCH-Mean, EGARCH and EGARCH-Mean models are used to capture the stochastic variation and asymmetries in the economic instruments. Results show that the EGARCH model gives better estimates of sub-periods volatility. Further analysis using Granger causality test show that there is sufficient empirical evidence that higher inflation rate level will result in higher future inflation uncertainty and higher level of inflation uncertainty will lead to lower future inflation rate

Sejarah pelaksanaan hak pewarisan pusaka di zaman Jahiliyyah dan zaman pasca Islam: Kajian perbandingan

This article discusses about the difference between the inheritance rights of heirs during the period of Jahiliah and after Islam.The study aims to comprehensively understand and to systematically and objectively strengthen the development of information about the historical perspective of the implementation of inheritance rights of heirs during the period of Jahiliah (before Islam) and post-Islamic era. The study employs qualitative method by exploring the old-time phenomena that happened during the period of Jahiliah and after Islam in the implementation of inheritance rights. The research outcome shows that implementation of inheritance rights during the post-Islamic era brings more justice than during the period of Jahiliah which are more discriminative in nature especially from the espect of marriage relationship. The situations happened during these two eras indicate the wide gap between them where the determination of inheritance rights during the post-Islamic era is more just and complete where as during the period of Jahiliah such determination was based on limited human thinking and desire which has led to injustise especially towards women and children

Organization support for cloud computing implementation success in education system: scale development and validity in Delphi

Cloud computing (CC) support for learning systems has been viewed as one of the most discussed issues that promise to modernize computing by providing visualized resources as a service over the internet. To be stable in cloud computing acquisition requires an education institution to address many of the same concerns they face in implementing an Information System (IS) service. Currently, there is still lack of CC implementation standard and organizational support that impacted VLE system performance. Previous research has reported that the influence of the CC implementation decision depends on the impact of various factors studied. Nonetheless, organizational support is the least factor mentioned especially studies from Malaysia. Thus, the main purpose of this study is to develop a validated scale of organizational support in implementation decision activities towards CC implementation success. In this paper, the Delphi process adopted to measure consensus among nominal group technique (also known as the expert panel). Key methodological issues in using the methods are discussed, along with the distinct contribution of consensus methods as aids to decision making in education service development. The study has adapted stages of proses flow of scale development and validation of measurement items according to legitimate measures in the Delphi technique. The measurement scales formed are based on literature review and field studies conducted to increase the reliability and validity values. Organizational support constructs were divided into top management support, firm size, awareness, Technology Readiness and cost effectiveness. A total of 5 items have been successfully set up for further validatio

In vitro antiatherothrombotic effects of extracts from Berberis vulgaris L., Teucrium polium L., and Orthosiphon stamineus benth

Coronary artery disease is the leading cause of mortality and morbidity worldwide. The pathogenesis is mainly due to atherosclerosis, plaque rupture, and platelet thrombus formation. The main risk factors for coronary artery disease include obesity, hypercholesterolemia, smoking, diabetes, and high blood pressure. As a part of disease management, treatment options using anticoagulant and antiplatelet drugs can be applied with addition to lipid-lowering medication. However, medicinal plants comprising antiatherothrombotic effects can be used as options to combat the disease rather than drug therapies with lesser adverse effects. Therefore, the haematological effect of Berberis vulgaris L., Teucrium polium L., and Orthosiphon stamineus Benth extracts was studied using in vitro model to prevent and to treat coronary atherothrombotic disease. The aqueous, methanol, and polysaccharide extracts of B. vulgaris, T. polium, and O. stamineus, respectively, were studied for their anticoagulant and antiplatelet effect on human whole blood. Extracts were subjected to the prothrombin time (PT) and activated partial thromboplastin time (APTT) test for anticoagulant activity. The antiplatelet activity was investigated using an electrical impedance method. B. vulgaris aqueous extract (BVAE), B. vulgaris polysaccharide extract (BVPE), T. polium aqueous extract (TPAE), and T. polium polysaccharide extract (TPPE) significantly prolonged the coagulation time in a concentration-dependent manner (p<0.05). The administration of BVAE demonstrated the most effective antiplatelet activity against platelet aggregation caused by arachidonic acid (AA) and collagen. These antiplatelet activities may correspond to the presence of higher total phenolic compound, which thus inhibit the platelet aggregation activity. In conclusion, these findings provide strong evidence on the antiatherothrombotic effect of BVAE and TPAE

Modelling and investigation on bouncing mechanism of a sphere robot

Spherical rolling mechanisms (SRMs) exhibit a number of advantages with respect to wheeled and legged mechanisms. In fact if the SRM is combined with the power of bouncing mechanism, it will produce an exciting phenomena that can be contributed to applications such as security surveillance, search and rescue. There is not much research done in both fields, especially in the bouncing mechanism. In fact to the best of authors’ knowledge no of research has been done on integrating both mechanism to produce a spherical system that is capable of rolling and bouncing, which can produce a very significant mobile robot. Therefore, this research deals with the modeling and development of a bouncing spherical robot using computational intelligent technique, i.e. Particle Swarm Optimization technique (PSO). A 3D virtual prototype of a spherical robot was developed in Visual Nastran as a platform for input and out data acquisition. Different simulations environment have been created, such as the free fall bouncing, shooting up and projectile type of environment to investigate the bouncing profile affected by different forces. The data obtained were then used for system identification using PSO technique with mean square error (MSE) of 0.0004%. The transfer function representing the bouncing mechanism of the sphere robot was then obtained. Next, the prototype of the sphere robot with bouncing capability was developed. Open loop tests have been conducted and the results show that the hardware developed can produce the bouncing mechanism at its promising capability. Future works need to be conducted to re-visit the hardware, particularly on the body of the sphere robot such that maximum bouncing can be achieved