Personal and Scientific Reminiscences

Tributes to Ahmed Zewail

Author: Majed Chergui

Publisher: Wspc (Europe)

ISBN: 9781786344359

Category: Science

Page: 284

View: 9254

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"This book compiles a wonderful tribute to the late Ahmed H Zewail (1946-2016), considered the 'father of femtochemistry' and a long-standing icon in the field of physical chemistry. Articles here are written by group of outstanding scientists from around the world who worked or have been affiliated with the Nobel prizewinning professor. Each article describes the authors own unique experience and relationship with Zewail, and includes details of scientific breakthroughs, discoveries, and the stories behind them. Personal and Scientific Reminiscences collects accounts from the most important individual in the physical and chemical sciences to give us a unique insight into the world and work of one of the great scientists of our time."--

Reminiscences of Ahmed H. Zewail

Photons, Electrons, and what Else? : a Portrait from Close Range : Remembrances of His Group Members and Family

Author: Ahmed H. Zewail

Publisher: N.A

ISBN: 9789813231535

Category: Chemical bonds

Page: N.A

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Turning Points in Solid-State, Materials and Surface Science

A Book in Celebration of the Life and Work of Sir John Meurig Thomas

Author: Kenneth D M Harris,Peter P Edwards

Publisher: Royal Society of Chemistry

ISBN: 1847558186

Category: Technology & Engineering

Page: 946

View: 2228

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The scientific exploration of solid materials represents one of the most important, fascinating and rewarding areas of scientific endeavour in the present day, not only from the viewpoint of advancing fundamental understanding but also from the industrial perspective, given the immense diversity of applications of solid materials across the full range of commercial sectors. Turning Points in Solid-State, Materials and Surface Science provides a state-of-the-art survey of some of the most important recent developments across the spectrum of solid-state, materials and surface sciences, while at the same time reflecting on key turning points in the evolution of this scientific discipline and projecting into the directions for future research progress. The book serves as a timely tribute to the life and work of Professor Sir John Meurig Thomas FRS, who has made monumental contributions to this field of science throughout his distinguished 50-year career in research, during which he has initiated, developed and exploited many important branches of this field. Indeed, the depth and breadth of his contributions towards the evolution and advancement of this scientific discipline, and his critical role in elevating this field to the important position that it now occupies within modern science, are demonstrated recurrently throughout the chapters of this book. Individual chapters are contributed by internationally leading experts in their respective fields, and the topics covered include solid-state chemistry of inorganic and organic materials, heterogeneous catalysis, surface science and materials science, with one section of the book focusing on modern developments in electron microscopy and its contributions to chemistry and materials science. The book serves as a modern and up-to-date monograph in these fields, and provides a valuable resource to researchers in academia and industry who require a comprehensive source of information on this important and rapidly developing subject.

Advanced Classical Electrodynamics

Green Functions, Regularizations, Multipole Decompositions

Author: Ulrich D Jentschura

Publisher: World Scientific Publishing Company

ISBN: 9813222875

Category:

Page: 372

View: 7585

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This textbook introduces advanced classical electrodynamics using modern mathematical techniques, with an emphasis on physical concepts. Connections to field theory and general relativity are highlighted while the book still serves as the basis for a one- or two-semester course on electrodynamics within the graduate curriculum. Request Inspection Copy

Physical Chemistry of Solids

Basic Principles of Symmetry and Stability of Crystalline Solids

Author: H. F. Franzen,Hugo Friedrich Franzen,Cheuk-Yiu Ng

Publisher: World Scientific

ISBN: 9789810211547

Category: Science

Page: 280

View: 9014

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This book is about the underlying principles of symmetry, thermodynamics and electronic structure that pertain to crystalline solids. After years of teaching graduate students in the areas covered, the author has a good idea of what major notions of group theory and thermodynamics are useful to students of solid state chemistry, and of what fundamental concepts are necessary for a clear understanding. Thus the book deals with lattice symmetry, space groups, reciprocal space, Landau theory, X-ray diffraction, heterogeneous equilibria and simple band theory, in a rigorous and thorough treatment.

Voyage Through Time

Walks of Life to the Nobel Prize

Author: Ahmed Zewail

Publisher: American University in Cairo Press

ISBN: 1617972460

Category: Biography & Autobiography

Page: 344

View: 3367

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From a beginning in an Egyptian Delta town and the port of Alexandria to the scenic vistas of sunny southern California, Ahmed Zewail takes us on a voyage through time his own life and the split-second world of the femtosecond. In this engaging expos? of his life and work until his receipt of the Nobel Prize in 1999, Zewail explores in non-technical language the landscape of molecules glimpsed on the scale of one quadrillionth of a second: the femtosecond, 0. 000 000 000 000 001 second. Zewail enriches the journey into the strange territory of femtochemistry with insightful analogies and illustrations to aid both the general reader and the scientifically inclined. He likewise draws lessons from his life story so far, and he meditates on the impact the revolution in science has had on our modern world in both developed and developing countries. He suggests a concrete course of action for the world of the have-nots, and ends the book with hope for Egypt in developing the nation's greatest natural resource its youth to build a more promising future, and for America to develop a new vision domestically and internationally.

The Standard Model and Beyond

Author: J D Vergados

Publisher: World Scientific Publishing Company

ISBN: 9813228571

Category: Science

Page: 452

View: 8062

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This book contains a systematic and pedagogical exposition of recent developments in particle physics and cosmology. It starts with two introductory chapters on group theory and the Dirac theory. Then it proceeds with the formulation of the Standard Model (SM) of Particle Physics, particle content and symmetries, fully exploiting the material of the first two chapters. It discusses the concept of gauge symmetries and emphasizes their role in particle physics. It then analyses the Higgs mechanism and the spontaneous symmetry breaking (SSB). It explains how the particles (gauge bosons and fermions) after the SSB acquire a mass and get admixed. The various forms of the charged currents are discussed in detail as well as how the parameters of the SM, which cannot be determined by the theory, are fixed by experiment, including the recent LHC data and the Higgs discovery. Quantum chromodynamics is discussed and various low energy approximations to it are presented. The Feynman diagrams are introduced and applied, at the level of first year graduate students. Examples are the evaluation of the decay widths of the gauge bosons and some cross sections for interesting processes such as Rutherford scattering, electron-proton scattering (elementary proton or described by a form factor, and inelastic scattering) and Compton scattering. After that the classic topics like the role of C, P, CP symmetries and the experimental methods needed to verify their conservation or violation are discussed in some detail. Topics beyond the standard model, like supersymmetry for pedestrians and grand unification, are discussed. To this end neutrino oscillations, dark matter and baryon asymmetry are also briefly discussed at the first year graduate level. Finally, the book contains an exhibition of recent developments in cosmology, especially from the elementary particle point of view. Contents: Mathematical Prerequisite A: Elements of Group TheoryMathematical Prerequisite B: The Dirac TheoryThe Standard Model: Particle Content and SymmetryThe Higgs MechanismFermion Masses and CurrentsThe SM SU(3) Group; Quantum ChromodynamicsRates and Cross Sections in Electroweak TheorySupersymmetry for PedestriansGrand Unification; The SU(5) ExampleA Brief Introduction to CosmologyAspects of Neutrino Physics; Neutrino OscillationsDiscrete Symmetries: C, P, T and All ThatAppendix: Some Elementary Aspects of Particle Physics Readership: Advanced undergraduates and beginning graduates studying particle or astroparticle physics.

Femtochemistry

Ultrafast Dynamics of the Chemical Bond

Author: Ahmed H. Zewail

Publisher: World Scientific

ISBN: 9789810217365

Category: Science

Page: 915

View: 5496

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These two volumes on Femtochemistry present a timely contribution to a field central to the understanding of the dynamics of the chemical bond. This century has witnessed great strides in time and space resolutions, down to the atomic scale, providing chemists, biologists and physicists with unprecedented opportunities for seeing microscopic structures and dynamics. Femtochemistry is concerned with the time resolution of the most elementary motions of atoms during chemical change -- bond breaking and bond making -- on the femtosecond (10-15 second) time scale. This atomic scale of time resolution has now reached the ultimate for the chemical bond and as Lord George Porter puts it, chemists are near the end of the race against time. These two volumes cover the general concepts, techniques and applications of femtochemistry.Professor Ahmed Zewail, who has made the pioneering contributions in this field, has from over 250 publications selected the articles for this anthology. These volumes begin with a commentary and a historical chronology of the milestones. He then presents a broad perspective of the current state of knowledge in femtochemistry by researchers around the world and discusses possible new directions. In the words of a colleague, "it is a must on the reading-list for all of my students ... all readers will find this to be an informative and valuable overview."The introductory articles in Volume I provide reviews for both the non-experts as well as for experts in the field. This is followed by papers on the basic concepts. For applications, elementary reactions are studied first and then complex reactions. Volume I is complete with studies of solvation dynamics, non-reactive systems, ultrafast electron diffraction and the control of chemical reactions.Volume II continues with reaction rates, the concept of elementary intramolecular vibrational-energy redistribution (IVR) and the phenomena of rotational coherence which has become a powerful tool for the determination of molecular structure via time resolution. The second volume ends with an extensive list of references, according to topics, based on work by Professor Zewail and his group at Caltech.These collected works by Professor Zewail will certainly be indispensable to both experts and beginners in the field. The author is known for his clarity and for his creative and systematic contributions. These volumes will be of interest and should prove useful to chemists, biologists and physicists. As noted by Professor J Manz (Berlin) and Professor A W Castleman, Jr. (Penn State): femtochemistry is yielding exciting new discoveries from analysis to control of chemical reactions, with applications in many domains of chemistry and related fields, e.g., physical, organic and inorganic chemistry, surface science, molecular biology, ... etc.

How the Universe Works

Introduction to Modern Cosmology

Author: Serge Parnovsky,Aleksei Parnowski

Publisher: World Scientific Publishing Company

ISBN: 9789813234949

Category: Science

Page: 188

View: 9831

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This book is about the history and the current state of the art in the exciting field of cosmology -- the science about the Universe as a whole, which is guaranteed to attract the attention of a wide range of readers. It mostly aims to explain the main ideas of modern cosmology: the expanding Universe, its creation in a Big Bang, its evolution, characteristics, and structure, as well as issues -- dark matter and dark energy, black holes and other exotic objects etc. It also answers most frequently asked questions about cosmology. How the Universe Works stands between a popular science book and a textbook, acting as a sort of a bridge across the great chasm separating popular science from true science. It can be also used as an introductory textbook for undergraduate students. It is also suitable for the non-experts in cosmology who wish to have an overview of the current state of the field. It is different from most popular science books because it avoids cutting corners in explanations and contains justification for various assumptions or estimations made in cosmology. It does not hide problems faced by modern cosmology as well as issues the community has no consensus about. It also does not try to pass hypotheses for established theories, which is not uncommon in scholarly articles.

Cosmic Anger

Abdus Salam - The First Muslim Nobel Scientist

Author: Gordon Fraser

Publisher: OUP Oxford

ISBN: 0191578665

Category: Science

Page: 336

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This book presents a biography of Abdus Salam, the first Muslim to win a Nobel Prize for Science (Physics 1979), who was nevertheless excommunicated and branded as a heretic in his own country. His achievements are often overlooked, even besmirched. Realizing that the whole world had to be his stage, he pioneered the International Centre for Theoretical Physics in Trieste, a vital focus of Third World science which remains as his monument. A staunch Muslim, he was ashamed of the decline of science in the heritage of Islam, and struggled doggedly to restore it to its former glory. Undermined by his excommunication, these valiant efforts were doomed.

Physical Biology

From Atoms to Medicine

Author: Ahmed H. Zewail

Publisher: World Scientific

ISBN: 1848162006

Category: Science

Page: 567

View: 1430

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Addresses significant problems in physical biology and adjacent disciplines. This volume provides a perspective on the methods and concepts at the heart of chemical and biological behavior, covering the topics of visualization; theory and computation for complexity; and macromolecular function, protein folding, and protein misfolding

4D Visualization of Matter

Recent Collected Works of Ahmed H Zewail, Nobel Laureate

Author: Ahmed H Zewail

Publisher: World Scientific Publishing Company

ISBN: 1783265043

Category: Science

Page: 428

View: 5804

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Ever since the beginning of mankind's efforts to pursue scientific inquiry into the laws of nature, visualization of the very distant and the very small has been paramount. The examples are numerous. A century ago, the atom appeared mysterious, a “raisin or plum pie of no structure,” until it was visualized on the appropriate length and time scales. Similarly, with telescopic observations, a central dogma of the cosmos was changed and complexity yielded to simplicity of the heliocentric structure and motion in our solar system. For matter, in over a century of developments, major advances have been made to explore the inner microscopic structures and dynamics. These advances have benefited many fields of endeavor, but visualization was incomplete; it was limited either to the 3D spatial structure or to the 1D temporal evolution. However, in systems with myriads of atoms, 4D spatiotemporal visualization is essential for dissecting their complexity. The biological world is rich with examples, and many molecular diseases cannot be fully understood without such direct visualization, as, for example, in the case of Alzheimer's and Parkinson's. The same is true for phenomena in materials science, chemistry, and nanoscience. This anthology is an account of the collected works that have emerged over the past decade from Caltech. Through recent publications, the volume provides overviews of the principles, the electron-based techniques, and the applications made. Thanks to advances in imaging principles and technology, it is now possible with 4D electron microscopy to reach ten orders of magnitude improvement in time resolution while simultaneously conserving the atomic spatial resolution in visualization. This is certainly a long way from Robert Hooke's microscopy, which was recorded in his 1665 masterpiece Micrographia.

4D Electron Microscopy

Imaging in Space and Time

Author: Ahmed H. Zewail,John Meurig Thomas

Publisher: World Scientific

ISBN: 1848164009

Category: Science

Page: 341

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Structural phase transitions, mechanical deformations, and the embryonic stages of melting and crystallization are examples of phenomena that can now be imaged in unprecedented structural detail with high spatial resolution, and ten orders of magnitude as fast as hitherto. No monograph in existence attempts to cover the revolutionary dimensions that EM in its various modes of operation nowadays makes possible. The authors of this book chart these developments, and also compare the merits of coherent electron waves with those of synchrotron radiation. They judge it prudent to recall some important basic procedural and theoretical aspects of imaging and diffraction so that the reader may better comprehend the significance of the new vistas and applications now afoot. This book is not a vade mecum - numerous other texts are available for the practitioner for that purpose.

Concepts and Methods in Modern Theoretical Chemistry

Electronic Structure and Reactivity

Author: Swapan Kumar Ghosh,Pratim Kumar Chattaraj

Publisher: CRC Press

ISBN: 1466505311

Category: Science

Page: 498

View: 3615

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Concepts and Methods in Modern Theoretical Chemistry: Electronic Structure and Reactivity, the first book in a two-volume set, focuses on the structure and reactivity of systems and phenomena. A new addition to the series Atoms, Molecules, and Clusters, this book offers chapters written by experts in their fields. It enables readers to learn how concepts from ab initio quantum chemistry and density functional theory (DFT) can be used to describe, understand, and predict electronic structure and chemical reactivity. This book covers a wide range of subjects, including discussions on the following topics: DFT, particularly the functional and conceptual aspects Excited states, molecular electrostatic potentials, and intermolecular interactions General theoretical aspects and application to molecules Clusters and solids, electronic stress, and electron affinity difference The information theory and the virial theorem New periodic tables The role of the ionization potential Although most of the chapters are written at a level that is accessible to a senior graduate student, experienced researchers will also find interesting new insights in these experts’ perspectives. This comprehensive book provides an invaluable resource toward understanding the whole gamut of atoms, molecules, and clusters.

Understanding Muhammad

Author: Ali Sina

Publisher: Felibri.com

ISBN: 0980994802

Category: Political Science

Page: 316

View: 2445

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Focusing on the "why" rather than the "what," this resource unravels the mystique of Muhammad, one of the most enigmatic and influential men in history.

Surface Engineered Surgical Tools and Medical Devices

Author: Mark J. Jackson,Waqar Ahmed

Publisher: Springer Science & Business Media

ISBN: 0387270264

Category: Medical

Page: 581

View: 8154

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Medical devices and surgical tools that contain micro and nanoscale features allow surgeons to perform clinical procedures with greater precision and safety while monitoring physiological and biomechanical parameters more accurately. While surgeons have started to master the use of nanostructured surgical tools in the operating room, this book addresses for the first time the impact and interaction of nanomaterials and nanostructured coatings in a comprehensive manner. Surface Engineered Surgical Tools and Medical Devices presents the latest information and techniques in the emerging field of surface engineered biomedical devices and surgical tools, and analyzes the interaction between nanotechnology, nanomaterials, and tools for surgical applications. Chapters of the book describe developments in coatings for heart valves, stents, hip and knee joints, cardiovascular devices, orthodontic applications, and regenerative materials such as bone substitutes. Chapters are also dedicated to the performance of surgical tools and dental tools and describe how nanostructured surfaces can be created for the purposes of improving cell adhesion between medical devices and the human body.

Molecular Reaction Dynamics

Author: Raphael D. Levine

Publisher: Cambridge University Press

ISBN: 9781139442879

Category: Technology & Engineering

Page: N.A

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Molecular reaction dynamics is the study of chemical and physical transformations of matter at the molecular level. The understanding of how chemical reactions occur and how to control them is fundamental to chemists and interdisciplinary areas such as materials and nanoscience, rational drug design, environmental and astrochemistry. This book provides a thorough foundation to this area. The first half is introductory, detailing experimental techniques for initiating and probing reaction dynamics and the essential insights that have been gained. The second part explores key areas including photoselective chemistry, stereochemistry, chemical reactions in real time and chemical reaction dynamics in solutions and interfaces. Typical of the new challenges are molecular machines, enzyme action and molecular control. With problem sets included, this book is suitable for advanced undergraduate and graduate students, as well as being supplementary to chemical kinetics, physical chemistry, biophysics and materials science courses, and as a primer for practising scientists.

André-Marie Ampère

Enlightenment and Electrodynamics

Author: James R. Hofmann

Publisher: Cambridge University Press

ISBN: 9780521562201

Category: Biography & Autobiography

Page: 406

View: 4145

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In this authoritative biography, James Hofmann examines the extraordinary life of André-Marie Ampère, who made original, significant contributions to mathematics and chemistry and is renowned for his new branch of physics - electrodynamics. A member of the Académie des Sciences, and professor at the École Polytechnique, his accomplishments are remarkable in view of his tragic personal life. One of the elite of early nineteenth-century Parisian science, yet having no formal education, he embraced the scientific optimism of the Enlightenment, and the Catholic faith. This combination of intellectual expectation and emotional spirituality made Ampère's genius both destructive and extraordinarily creative. This, the only biography available in the English language, illuminates the scientific contributions of an individual and his epoch, and provides a fascinating insight into the workings of the scientific mind.