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Volume 4 Issue 5

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Title : Digital Filter Enhancement of Electrocardiographic Signal Using Parzen Window

Authors : V. O. Mmeremikwu

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Abstract :

The heart may be described as the engine room of all mammals. It is responsible for pumping of blood to every part of the body. Digested food nutrient, oxygen and blood are transported to all parts of the body through the a network of veins in a process known as the circulatory system. This transportation is initiated by the heart pumping blood into the system. Therefore the heart is a very important organ of the body and should be cared for. Medically, the wellness of the heart can be determined by the electrical potential it produces. This electrical potential is called electrocardiogram (ECG). ECG may be affected by unwanted signals that may be recorded in the process of recording the signal. One of those unwanted signals is the power line interference (PLI). This paper proposes and demonstrates the removal 0.1mV 50Hz PLI from a contaminated single cycle ECG signal using a Parzen windowed Finite Impulse Response (FIR) filter.


Title : “The Relationship between High Performance Work Practices and Employee Attitudes” A Study on Small Business Private Sector in Colombo District

Authors : Mrs. MRF. Aqeela, Ramakrishnan Vivek

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Abstract :

In order to improve our understanding of mediating variables. This paper examines the relationship between high-performance work practices (HPWP) practices and employee attitudes. Using a randomly selected, national population sample, clear evidence was found for a positive relationship between HPWS practices and the attitudinal variables of job satisfaction and organizational commitment, implying that HPWP can provide win win outcomes for employees and employers. However, the study also tests – from an employee perspective – the ‘complementarities thesis’ and finds Positive interaction effects among HPWS practices. This strengthens the argument that there are likely to be limits to the positive outcomes of HPWSs for employees. Evidence of sequencing in the employee attitudinal responses to HPWSs was also found, with job satisfaction as the key mediating variable.

Regression analysis showed that there is a positive significant relationship between High performance work practices and job satisfaction, and also there is a positive significant relationship between High performance work practices and organizational commitment.