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QT interval is estimated from the beginning of Q wave to the end of T wave on ECG. This can be explained due to the shortening or lengthening of the ventricular repolarization. The study has performed to assess QT interval prolongation due to drugs and drug-drug interactions resulting QT interval prolongation. This study reveals some of the specific drugs causing QT interval prolongation. The study also reveals that QT interval prolongation occurs in almost all therapeutic classes of drugs (like tricyclic antidepressants, anti-emetics, prokinetic agents, antifungals, cardiovascular drugs etc) among which cardiac drugs were majorly causing the prolongation. This research work founded five major causes that lead to QT interval prolongation. The study also discusses about risk factors which are considered as a causative factor to prolong QT interval.
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This book focuses on the two bastions that make up the south gate of the Iberian oppidum of Cerro de las Cabezas (Valdepeñas, Ciudad Real). It comprises two defensive constructions whose internal space fulfilled a socioeconomic function related to the storage of cereal.
Spearheading the promotion of international technology transfer in the fields of mine planning, mining systems design, equipment selection and operation techniques, the International Symposium on Mine Planning and Equipment Selection is recognised by the mining society as a key annual event in highlighting developments within the field. Here in this volume, proceedings from the thirteenth annual symposium concentrate on the following major topics: * open pit and underground mine planning, modelling and design * geomechanics * mining and processing methods * design, monitoring and maintenance of mine equipment * simulation, optimalization and control of technological processes * management, mine economics and financial analysis * health, safety and environmental protection. Including 147 papers from leading experts and authorities, Mine Planning and Equipment Selection undoubtedly provides valuable information and insight for a range of engineers, scientists, researchers and consultants involved in the planning, design and operation of underground and surface mines.
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