Addresses the use of rigorous multicomponent mass transfer models for the simulation and design of process equipment. Deals with the basic equations of diffusion in multicomponent systems. Describes various models and estimations of rates of mass and energy transfer. Covers applications of multicomponent mass transfer models to process design. Includes appendices providing necessary mathematical background. Contains a large number of numerical examples worked out in detail.
Pulmonary hypertension is defined as a mean pulmonary artery pressure (mPAP) ≥25 mmHg, with Pulmonary Capillary Wedge Pressure ≤ 15 mmHg, measured by cardiac catheterization. The etiology of PH has a varied spectrum extending right from Drugs, toxins and portal hypertension to HIV, Collagen Vascular Diseases and Persistent Pulmonary Hypertension of Newborn, etc. The estimation of disease prevalence has been nearly impossible owing to the geographic distribution and economic diversity, along with significant regional variations in human development and healthcare infrastructure. A large number of patients with PH never reach the health centers capable of diagnosing the disease condition correctly. Advance pulmonary vascular disease as a result of uncorrected CHD is a major health challenge in the developing world. PH exists as a major component of many forms of cardiac and pulmonary disease. While breathlessness is the most common feature of PH, patients often also present with chest pain, syncope, fatigue, weakness and abdominal distension. The precordial signs include a right ventricular lift, accentuated pulmonary component of S2, a pansystolic murmur of Tricuspid regurgitation, a diastolic murmur of pulmonary regurgitation and a right ventricular S3. The standard diagnostic workup in developed countries includes a series of investigations to rule out the secondary causes. Additional tests are required to estimate the disease severity and plan the appropriate treatment. These include the cardiac catheterization, selective pulmonary angiography by direct injection of pulmonary arteries, high resolution CT scan, cardiac magnetic resonance, ABGs, nocturnal O2 saturation, etc. While most of the basic management is feasible in the Indian conditions, most of the newly introduced drugs are either not available or are available at costs that far exceed the paying capacity of an average citizen of a developing economy. An underdeveloped health insurance system adds further to the financial burden of the treatment. Measures like formulation of guidelines for diagnosis and treatment of PAH, educating clinicians and scientists and making medications affordable to poor patients might ensue a breakthrough in the overall management of pulmonary hypertension.
The book deals with agroecological aspects of nutrients essential to crop production. A new concept termed 'AGROSPHERE' has been introduced in the book. A brief description about agrosphere, its expanse, contrasting features and interactions with other ecospheres, global nutrient dynamics and food production trends within various agro ecosystems fo
This second edition brings paediatricians and trainees fully up to date with the latest developments in the rapidly changing field of paediatric cardiology. Beginning with clinical assessment and diagnostic tools such as chest X-Ray and ECG, the following chapters discuss different disorders and diseases encountered in children, from hypertension and arrhythmias, to rheumatic fever, myocardial disease and Kawasaki disease. The final section provides dosages for numerous drugs. The new edition has been fully updated and includes more than 200 images, illustrations and tables to enhance learning. Each chapter includes an extensive reference section or suggested reading for further information. Key points New edition presenting latest developments in paediatric cardiology Covers diagnostic tools, and numerous diseases and disorders Final section presents detailed drug dosage information Previous edition published in 2008
Rapid industrialization, Population Growth, Urbanisation, inspite of its positive effects on economic development of the world, has very seriously threatened the world's natural environmental balance, on account of which, we face an enormous environmental crisis. The problem of environmental conservation and development has in recent times engaged the attention of various organisations, agencies and face various types of problems in the form of disasters, such as affect the whole world. The forests through out the world are under tremendous pressure. Forest fires are a major degradation of under developing countries' forests. The field administration of the forests is the responsibility of the various governments. The Governments thus has the direct responsibility of the management of forest resources of the countries. Environment nowadays is considered as one of the serious issues in the society.
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