Examines various chemical reactions, from the explosion of gunpowder to physiological actions of medicines.

"Presents several science projects and science project ideas about chemistry"--Provided by publisher.

"Examines the history of theories about the basic building block of the physical universe."--Source other than the Library of Congress.

Describes how scientists investigate the physical phenomenon of light.

Examines different forms of energy and their uses in powering various human activities.

Traces the history of modern astronomy and examines some of its important concepts.

Rapid technical developments with lasers and other energy devices have continued over recent years, both in the different types of devices available and in what can be used for cosmetic and other treatments, including scar and tattoo removal, hair removal, cellulite, and lipolysis. In the second edition of Lasers and Energy Devices for the Skin, th

Evidence-based thinking in clinical medicine has impacted greatly on the physician's approach to clinical care. Evidence-Based Dermatology introduces and encourages the concept of evidence-based patient care in dermatology. Incorporating a text that is much more than merely the summary of trial data, the authors worked to explore disease mechanisms and treatments in greater depth and detail in order to provide more insight for the reader. In addition to promoting the understanding of the evidence-based philosophy, the authors have focused on some of the fundamentals in dermatology that need to be approached differently. Issues such as the interpretation of clinical research, disease-oriented evidence versus patient-care evidence, and the use of placebo are examined.

This book describes the three gasotransmitters nitric oxide (NO), hydrogen sulphide (H2S) and carbon monoxide (CO) and their function as intracellular signalling molecules in plants. Common properties are shared by NO, H2S and CO: they are beneficial at low concentrations but hazardous in higher amounts; they are small molecules of gas; they can freely cross cell membranes; their effects do not rely on receptors; they are generated enzymatically and their production is regulated; their functions can be mimicked by exogenous application; and their cellular effects may or may not be mediated by second messengers, but have specific cellular and molecular targets. In plants, many aspects of the biology of gasotransmitters remain completely unknown and generate intriguing questions, which will be discussed in this book.