Heterocycles are ubiquitously present in nature and occupy a unique place in organic chemistry as they are part of the DNA and haemoglobin that make life possible. The Chemistry of Heterocycles covers an introduction to the topic, followed by a chapter on the nomenclature of all classes of isolated, fused and polycyclic heterocycles. The third chapter delineates the highly strained three membered N,O and S containing aromatic and non-aromatic heterocycles with one and more than one similar and dissimilar heteroatom. The four-membered heterocycles are abundantly present in various natural and synthetic products of pharmacological importance. This chapter describes the natural abundance, synthesis, chemical reactivity, structural features and their medicinal importance. This class of compounds are present as sub-structures in penicillin and cytotoxic Taxol. Lastly, a chapter on the natural abundance, synthesis, chemical reactivity and pharmacological importance of 5-membered heterocycles with N,O,S heteroatom is covered. The chemistry of heterocycles with mixed heteroatom such as, N-S, N-O, N-S etc. is also described. Gives in-depth, clear information about various systems of nomenclature along with widely acceptable IUPAC system for naming various classes of heterocycles Provides complete information about natural occurrences, synthesis, chemical reactivity, pharmacological importance of heterocycles and their application in material science Highly relevant for graduate students and researchers, providing updated information about various isolated and fused N,O and,S containing heterocycles
I have always felt that Indira Gandhi is the exceptional and foremost example of the dynastic politics of independent India. She is a perfect example of dynastic rule, on one hand, she is called the 'Iron Lady', on the other hand, people pay tribute to her dictatorship for imposing emergency in the country. Where on one hand Indira Gandhi carved her name in golden letters in Indian history by dividing Pakistan into two, on the contrary, she has also endured the slogans like Sanjay ki mummy, badi nikammi for blindly loving her son like Gandhari loved Duryodhana. Nonetheless, we cannot forget that it was Indira Gandhi who gave wings to India's strength and courage by conducting the Nuclear Test; however, she was also the Prime Minister for whom the High Court issued orders to be removed from her office. In fact, Indira Gandhi is merely a symbol of dynasty politics. The point here is to remind the young people that they cannot strive for ideal politics by idolising those who have flourished through family inheritance of post or position. In today's scenario, there are numerous political parties that operate under a single family's control. Although I hold great admiration for Indira Gandhi, however, her darker side is perhaps more prominent. Hence, I believe that young aspirants who are interested in politics can learn valuable lessons from this book on what not to do!
Random Walks In Solitude Glimpses of Religion and Spirituality through the Eyes of Modern Science The ‘Random Walks in Solitude: Glimpses of Religion and Spirituality through the Eyes of Modern Science’ is a collection of articles published by the author since 2006 AD. The topics include some of the most complex and enigmatic subjects as ‘Concept of Prana’, ‘Universal Consciousness’, ‘Scientific basis of Samudra Manthan the Proverbial Churning of Cosmic Ocean’, ‘Lord Dattatreya’, ‘Ardha-Nari-Nateshwara’ and ‘Science behind ‘Yogic Samadhi’. While doing so, the author does not claim that his interpretations on some of these enigmatic concepts are exactly true, but in the absence of any serious attempt done so far, they feel refreshing and he has attempted to re-validate religion and spirituality on scientific logic and reasons. Otherwise, we as a community were just holding them dear to our hearts for thousands of years as fanciful stories. These concepts were conceived and described by our ancient ‘Rishis’ in native terminologies and language and since then, have remained a part of our psyche in our life. Today, as professional scientists, we need to re-look to these concepts afresh from modern scientific perspective, identify and correlate them with current scientifically analogous terminologies, without losing their original perceptive meaning, they conveyed to our minds. In this respect, the logical scientific interpretations of the concepts of ‘Soul’, ‘Rebirth’, ‘Work’ and the ‘Law of Karma’, published earlier by the author, have received considerable attention and appreciation. In the same spirit, the author hopes that the readers would find this book also equally interesting, innovative, refreshing and scientifically logical to realize the continued relevance of the ‘Sanatan Vedic Philosophy’ even in the twenty first century.
Winner of the Jnanpith and Sahitya Akademi Awards. The story of Yayati is perhaps one of the most intriguing and fascinating episodes of Mahabharata. Yayati was a great scholar and one of the noblest rulers of olden times. He followed the shastras and was devoted to the welfare of his subjects. Even the King of Gods, Indra, held him in high esteem. Married to seductively beautiful Devyani, in love with her maid Sharmishtha, and father of five sons from two women, yet Yayati unabashedly declares, 'My lust for pleasure is unsatisfied...'. His quest for the carnal continued, sparing not even his youngest son, and exchanging his old age for his son's youth...
Isolated Pyranones: Multifaceted Building Blocks for Molecular Diversity covers the latest findings on synthesis and chemical reactivity of highly functionalized pyran-2-ones and pyran-4-ones, their reduced analogs and compounds derived from them through chemical reactions, and their applications in drug discovery and material sciences. It covers the mechanisms of the reaction and step by step formation of final products. Numerous pyranones from natural and synthetic origins, as well as their derived products, have shown diverse pharmacological activities and some are in clinical use. The applications of these compounds are not limited to drug development and imaging agents, and they are also used in material science as organic semiconductors, liquid crystals, organic light emitting diodes (OLEDs), organic catalysts, solid state lasers, photovoltaic and photoconductive devices. The book is ideal for organic, bioorganic, physical, material and natural product chemists working to generate diverse molecular entities through ring transformation reactions of pyranones, and those working in material science to generate new chemical entities. Includes various synthetic methodologies for generating molecular diversity Covers the applications of functionalized pyranones as substrates for generating new molecular entities such as arenes, heteroarenes, oligoarenes, spiroarenes, and condensed-oligoarenes through base-induced ring transformation, substitution-cyclization and cycloaddition reactions Discusses numerous compounds derived from pyranones that are useful as organic semiconductors, liquid crystals, organic catalysts, organic light emitting diodes (OLEDs), solid state lasers, photovoltaic and photoconductive devices
Progress in Drug Research is a prestigious book series which provides extensive expert-written reviews on a wide spectrum of highly topical areas in current pharmaceutical and pharmacological research. It serves as an important source of information for researchers concerned with drug research and all those who need to keep abreast of the many recent developments in the quest for new and better medicines.
This book deals with the basics of Research Methodology (RM) for Business Research and statistical analysis for dealing with data using two software: R (a free statistical analysis environment) and MS-Excel. Apart from the basic concepts of Research Methodology, the book contains an additional chapter on improving academic writing. It contains important details on plagiarism, citation and referencing in MS-Word, and improving project/dissertation writing using free online software. Print edition not for sale in South Asia (India, Sri Lanka, Nepal, Bangladesh, Pakistan or Bhutan)
This SpringerBrief reveals the latest techniques in computer vision and machine learning on robots that are designed as accurate and efficient military snipers. Militaries around the world are investigating this technology to simplify the time, cost and safety measures necessary for training human snipers. These robots are developed by combining crucial aspects of computer science research areas including image processing, robotic kinematics and learning algorithms. The authors explain how a new humanoid robot, the iCub, uses high-speed cameras and computer vision algorithms to track the object that has been classified as a target. The robot adjusts its arm and the gun muzzle for maximum accuracy, due to a neural model that includes the parameters of its joint angles, the velocity of the bullet and the approximate distance of the target. A thorough literature review provides helpful context for the experiments. Of practical interest to military forces around the world, this brief is designed for professionals and researchers working in military robotics. It will also be useful for advanced level computer science students focused on computer vision, AI and machine learning issues.
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.