This book presents a large number of organic reactions performed under green conditions, which were earlier performed using anhydrous conditions and various volatile organic solvents. The conditions used involve green solvents like water, super critical carbon dioxide, ionic liquids, polymer-supported reagents, polyethylene glycol and perfluorous liquids. A number of reactions have been conducted in solid state without using any solvent. Most of the reactions have been conducted under microwave irradiations and sonication. In large number of reactions, catalysts like phase transfer catalysts, crown ethers and biocatalysts have been used. Providing the protocols that every laboratory should adopt, this book elaborates the principles of green chemistry and discusses the planning and preparations required to convert to green laboratory techniques. It includes applications relevant to practicing researchers, students and environmental chemists. This book is useful for students (graduate and postgraduate), researchers and industry professionals in the area of chemical engineering, chemistry and allied fields.
Energy is important for the survival of life forms on earth. While energy exists in different forms, fossil fuels, one of the forms of energy source, have played an important role in the history of human development. The widespread use of fossil fuels has severely affected the environment. Climate change and global warming, the outcome of the extensive use of fossil fuels, have forced us to reimagine a fossil fuel-free earth. To save the planet earth, scientists are urging humans to make efforts to contain the rising global temperature below 2°C by reducing emissions from fossil fuel. Energy and Environment discusses various forms of energy. It examines environmental impacts of energy generation and how non-renewable sources of energy contributes significantly to environmental pollution. In the book the role of renewable energy sources in mitigating global problem of environmental pollution is also discussed at length. It also elaborates on storage of energy, an important subject, in the context of rising energy demands of the present world.
This book has been divided in 37 chapters under three parts; Inorganic Chemistry, Organic Chemistry and Physical Chemistry for convenient understanding. It also includes solved model test papers of the previous three years of AIIMS · CBSE · PMT · CPMT(UP) to enable students to develop the skills of problem solving and time management, essential for any entrance examination. In addition to providing answers to all the questions, detailed explanatory notes to selected difficult questions have also been provided to justify the answer. A separate section of Assertions and Reasons is also given at the end of each chapter * Exhaustive Question Bank * Explanatory Notes and Hints * Assertions & Reasons * Includes Pre-solved papers of five years * Models Test Papers of AIIMS, CBSE(PMT), CPMT
The second edition of Environmental Studies discusses the various types of natural resources and the problems faced in conserving them and the effective management of resources for sustainable lifestyles. Based on the latest UGC syllabus, the book focuses on the concepts, structure and function of an ecosystem, threats to biodiversity and conservation of biodiversity, causes, effects and control measures of pollution, hazardous effects of human population on environment and management of environment quality and the several types of pollution.
The environment is defined, perceived, and valued diversely by different countries, cultures, and communities. A healthy environment ensures human security, which means everyone has the access to food and water, employment and livelihood stability, resilience to climate change and extreme weather events, and also social and political stability. As the demand for food, fodder, fuel, and raw material grows, it increases the pressure on the environment and the competition for natural resources. Both human and natural activities have caused the physical, chemical, and biological degradation of the environment. The Environment covers the basic components of environment, ecology, biomes, and biodiversity. The book gives an analytical understanding of the topics. While the book covers major international topics, it has a strong focus on India too. The book will help candidates appearing for competitive examinations such as civil services. It is also extremely useful for readers interested in environment science, environment chemistry, and related subjects.
Unlike traditional biographies of combat leaders, which focus primarily on military operations or regimental histories, in this book Major General V.K. Singh concentrates on personal accounts, anecdotes and reminiscences in order to highlight these leaders’ personalities, and to draw out the human face behind the military facade. Through the stories of these twelve military leaders, the book also throws new light on several historical events and the role of political leaders during India’s fight for independence and the partitioning of the subcontinent. He gives an overview of India’s military history after independence, including major operations, and describes many hitherto unknown or little-known incidents concerning smaller operations like Nathu La in 1967 and Goa in 1962. Written records tend to glorify the actions of battalions as well as individuals, Singh says, magnifying achievements while suppressing the mistakes and glossing over failures. Leadership in the Indian Army provides a truer picture of the strength of character and convictions of each of these leaders. A must-read for anyone interested in India’s military history.
Working Capital Management: An Overview 2. A Valuation Framework 3. Working Capital Policies 4. Cash Management Systems: Collection Systems 5. Cash Management Systems: Cash Concentration Systems 6. Cash Management Systems: Disbursement Systems 7. Forecasting Cash Flows 8. Corporate Liquidity And Financial Flexibility 9. Cash Management Optimisation Models 10. Receivables Management: Trade Credit 11. Receivables Management: Credit Granting Decisions 12. Monitoring Accounts Receivables 13. Payables Management And Instruments Of Short-Term Financing 14. Inventory Management 15. Programming Working Capital Management 16. Integrating Working Capital And Capital Investment Processes 17. Monetary System 18. Money Market In India 19. Banking System In India 20. Working Capital Control And Banking Policy ..... 27. Managing Short-Term International Financial Transactions Appendices Index
This book deals with the role of the Corps of Signals of the Indian Army during the Sino-Indian War of 1962. Based on their personal experiences, excellent accounts have been written by two Signals officers, Major General KK Tewari and Brigadier Lakshman Singh. However these cover mainly the operations in the Kameng Frontier Division of NEFA. The operations in the Walong Sector and Ladakh do not form part of their narratives. The official history of the Corps of Signals also does not cover these operations. This book aims to fill this gap and acquaint the public and the present generation of signallers with the achievements of their forebears, who had worked under trying circumstances to provide communications in 1962, many of them sacrificing their lives.
The Hon’ble Prime Minister Shri Narendra Modi’s criticism of a section of the civil servants in the parliament early this year triggered the author to write this narrative on public servants. The author vividly and forcefully tells the readers about the way India’s civil services and other public servants perform their duties based on his personal experiences while holding various senior posts in the public administration under the Government of India, State Government, autonomous institutions, academics and in public sector undertakings. He had been a brilliant, dynamic professional and an institutional builder throughout his career and is eminently suitable to analyze the fault lines in our civil administration. While lauding the stellar role of civil servants in many spheres of the governance, he incisively exposes some of the hidden facts about how some of the civil servants and others, while holding top positions in the government, grossly misuse their positions, and how such facts remain hidden in the four walls of high offices. He implores the leaders of all political parties, media and citizens to root for bringing reforms not only in civil services but also in all the three wings of government, i.e. executive, legislature and the judiciary so that people get an administration that is fair, honest, transparent, accountable, efficient and not dilatory. A must-read for those concerned with efficient governance and the academics and students of public administration.
This book is unique in that it brings together published viscosity data, experimental methods, theoretical, correlation and predictive procedures in a single volume. The readers will get a better understanding of why various methods are used for measuring viscosity of different types of liquids and why an experimental method is dependent on fluid characteristics, such as Newtonian or non-Newtonian fluids.
Part-I: Foundations Of Finance Part-Ii: Valuation Part-Iii: Capital Budgeting Decisions Part -Iv: Long-Term Financing And Required Rate Of Return Part-V: The Management Of Working Capital Part-Vi: Selected Topics In Contemporary Finance Appendices Index
This book, written explicitly for graduate and postgraduate students of chemistry, provides an extensive coverage of various organic reaction and rearrangements with emphasis on there application in synthesis. A summary of oxidation and reduction of organic compounds is given in tabular form (correlation tables) for the convenience of students. The most commonly encountered reaction intermediates are dealt with. Applications of organic reagents illustrated with examples and problems at the end of each chapter will enable students to evaluate their understanding of the topic.
Energy is important for the survival of life forms on earth. While energy exists in different forms, fossil fuels, one of the forms of energy source, have played an important role in the history of human development. The widespread use of fossil fuels has severely affected the environment. Climate change and global warming, the outcome of the extensive use of fossil fuels, have forced us to reimagine a fossil fuel-free earth. To save the planet earth, scientists are urging humans to make efforts to contain the rising global temperature below 2°C by reducing emissions from fossil fuel. Energy and Environment discusses various forms of energy. It examines environmental impacts of energy generation and how non-renewable sources of energy contributes significantly to environmental pollution. In the book the role of renewable energy sources in mitigating global problem of environmental pollution is also discussed at length. It also elaborates on storage of energy, an important subject, in the context of rising energy demands of the present world.
Organic chemistry has played a vital role in the development of diverse molecules which are used in medicines, agrochemicals and polymers. Most ofthe chemicals are produced on an industrial scale. The industrial houses adopt a synthesis for a particular molecule which should be cost-effective. No attention is paid to avoid the release of harmful chemicals in the atmosphere, land and sea. During the past decade special emphasis has been made towards green synthesis which circumvents the above problems. Prof. V. K. Ahluwalia and Dr. M. Kidwai have made a sincere effort in this direction. This book discusses the basic principles of green chemistry incorporating the use of green reagents, green catalysts, phase transfer catalysis, green synthesis using microwaves, ultrasound and biocatalysis in detail. Special emphasis is given to liquid phase reactions and organic synthesis in the solid phase. I must congratulate both the authors for their pioneering efforts to write this book. Careful selection of various topics in the book will serve the rightful purpose for the chemistry community and the industrial houses at all levels. PROF. JAVED IQBAL, PhD, FNA Distinguished Research Scientist & Head Discovery Research Dr. Reddy's Laboratories Ltd.
Biomolecules, also known as molecules of life, are essential for sustaining life processes. This book presents a study of these crucial biological substances to explore their function, structure, biological role, and synthesis. It also expands upon the various types of biomolecules and discusses their individual characteristics. The subject matter of this book also covers: Mucopolysaccharides Tertiary Structure of Proteins Caffeine Mechanism of Enzyme Action Biosythesis of Haemoglobin Print edition not for sale in South Asia (India, Sri Lanka, Nepal, Bangladesh, Pakistan or Bhutan)
This book is designed to serve as a textbook for core as well as elective courses offered to undergraduate and advanced undergraduate students enrolled in chemistry. This textbook comprehensively deals various topics of organic chemistry such as amino acids, peptides, proteins and enzymes. The text is divided into four chapters: a chapter each dedicated to amino acids, peptides, proteins and enzymes, respectively. The important reactions have been explained with the help of the mechanisms involved. It gives a detailed account of the solution phase and solid phase synthesis of peptides as well as discussing the structure and function of some biologically important peptides. It also covers the classification, nomenclature and mode of action of enzymes, and a detailed account of the structure and function of different co-enzymes. The book also includes pedagogical features like end-of-chapter exercises to aid in self learning. Given the scope, this textbook will be useful for graduate and advanced graduate students pursuing the course of chemistry, especially organic chemistry.
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