Managing Change in Global Organizations Research Paper

Managing Change in Global Organizations - Research Paper Example In recent years, a lot of debate has centered on how global business organizations should define, enter and operate in markets. The study on which this article by John Amis and Michael Silk is based examined the thought processes and processes of senior managers at Guinness. Their findings revealed that effective management of a global brand called for strategic marketing initiatives that would enable the brand to be in sync with local realities and brands while maintaining its global status. This paper by Michael Harvey and Milorad Novicevic explores the role of global teams in the strategic initiatives of global organizations. Strategic initiatives refer to those major decisions and actions reached and taken by a global organization with a view to achieving far-reaching results. An example of a strategic initiative is rebranding. This article by Gedeon Mudacumura examines empirical studies on the participative approach to management in public and private sectors. Given the phenomenon of globalization, the author identifies the concepts of interrelationships and complexity as major challenges to management. The concept of interrelationships implies that many changes that global organizations are highly intertwined such that they cannot be addressed in isolation. Consequently, management scholars must look an approach to change management that is more suitable for global organizations. This article by Leong Choon Chiang reports the findings of a study that examined the role of management and the concerns of employees when a hotel rebrands.

Block 6 (Week 11&12) Cardiovascular Physiology Exercise (Lab Exercise Lab Report

Block 6 (Week 11) Cardiovascular Physiology Exercise ( Exercise #6) - Lab Report Example The period of time between the effective refractory period and phase 4 is the ‘relative refractory period’. The refractory period of cardiac muscle is about 250 milliseconds—almost as long as the contraction of the heart. Summation does not occur in the heart muscle contraction. The refractory period of the heart muscles is longer than that in the skeletal muscles, therefore heart twitches do not overlap and hence increased (summed) ventricular contraction is not seen. Summation would result in more powerful contraction of the ventricle causing irregular high cardiac output. Heart might find it diffult to recvoer from this ‘double-twitch’, i.e. repolarization might take a long time. This irregular pumping of heart would cause dysrhythmia. Vagus nerves are the part of para-sympathetic nervous system and act by decreasing the heart rate by direct effect on the SA and AV nodes in the heart atrium. Parasympathetic stimulation by the vagal nerve endings in the atrium results in slowing down of the heart rate and can bring the cardiac output to almost zero. Vagus nerves are parasympathetic and supply to AV and SA nodes. Parasympathetic stimulation result in decrease in the heart rate and cardiac output. Since the vagal fibers are primarily distributed in the atria, they result in a decrease in the heart rate. Decrease in the heart rate along with slight decrease in ventricular contraction can decrease the cardiac output by 50%. The cardiac muscle has inherent autorhythmicity, i.e. they can generate the contraction activity automatically. However, the un-stimulated heart beats at a much slower rate and needs continuous sypathetic stimulation to maintain the nornal heart rate, i.e. 70 pulses a minute. Also, sympathetic stimulation increases the power of the ventricular contraction to as much as double the normal, thereby increasing the volume of blood pumped and increasing the ejection pressure. The vagal nerve endings