Colored Contact Lenses
In this, the second edition of her popular book "Don't Forget Your Sunglasses: A Parent's Survival Guide to Kindergarten", Dr. Benyo tackles more of the questions and issues that concern parents, practically doubling the length of the first edition. From How to Set Limits to How to Answer 'Why?', Dr. Benyo offers clear, concise suggestions of value to parents whose youngsters will be starting or are enrolled in kindergarten (recommended for ages 3-6). The author also provides ideas on how to dress, attending school parties, taking a vacation during school, packing a lunch, contacting the teacher or principal, and so much more. Her views of kindergarten as an elementary teacher, school principal, and professor of students studying to become teachers, as well as her experiences as a parent of five children, give her a unique perspective of the needs of children and their parents.
Disordered magnetic systems enjoy non-trivial properties which are different and richer than those observed in their pure, non-disordered counterparts. These properties dramatically affect the thermodynamic behaviour and require specific theoretical treatment. This book deals with the theory of magnetic systems in the presence of frozen disorder, in particular paradigmatic and well-known spin models such as the Random Field Ising Model and the Ising Spin Glass. This is a unified presentation using a field theory language which covers mean field theory, dynamics and perturbation expansion within the same theoretical framework. Particular emphasis is given to the connections between different approaches such as statics vs. dynamics, microscopic vs. phenomenological models. The book introduces some useful and little-known techniques in statistical mechanics and field theory. This book will be of great interest to graduate students and researchers in statistical physics and basic field theory.
This work presents a comprehensive source of information on germanate glasses. It describes in detail the structures, properties, and glass forming abilities of various germanate systems, then shows how to create new and established varieties of glasses with precision and accuracy. "Germanate Glasses" begins with a review of glass state physics and chemistry, then moves into detailed chapters describing germanium dioxide; GeO2 glasses; binary, ternary, and multicomponent glasses; fluoride-containing germanate glasses; and pseudo-ternary fluoro-germanate systems. These chapters present up-to-date research on each glass type, including x-ray and neutron studies, optical properties, spectroscopic data, and more. Numerous references are included at the end of each chapter. For researchers, designers and fabricators of germanate glass, this book: shows how composition and structure relate to glass forming ability, and sets out to cut design time and eliminate unnecessary experiments by knowing ahead of time what will and will not work.
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