Libri di Larsen

Unlike many existing books on toxicology that cover either toxicity of a particular substance or toxicity of chemicals on particular organ systems, Toxicological Risk Assessment of Chemicals: A Practical Guide lays out the principle activities of conducting a toxicological risk assessment, including international approaches and methods for the risk assessment of chemical substances. It illustrates each step in the process: hazard identification, a dose response assessment, and exposure assessment. The book also summarizes the basic concepts of interaction of chemicals in mixtures and discusses various approaches to testing such mixtures. Features: Addresses standards from all international regulatory agencies Presents the steps in risk assessment, including hazard identification, exposure assessment, and risk characterization Covers the assessment of multiple chemical exposures or chemical mixtures Contains data from both human and animal studies Explains the linearized multi-stage mathematical model widely used by the US EPA for characterizing

Recognizing patterns of disease can be the first step to successful management of the child with a neurological problem; this is emphasized by the authors throughout the book. Their concise, precise account reflects the remarkable recent advances in pediatric neurology and related disciplines, while stressing the fundamentals of clinical examination and history taking in reaching an accurate diagnosis. The book begins with a detailed discussion of neurological examination techniques and the basic formulation of differential diagnoses and management, using neuroradiology, electrophysiology, cerebrospinal fluids, genetic and metabolic testing. The second section of the book follows a problem-based approach, just as diseases present in the real world. It employs practical, symptom- and sign-based strategies for virtually all conditions encountered by the practitioner. The final section on neurological emergencies recognizes that such conditions present first to someone other than a pediatric neurologist. This new color handbook is illustrated throughout by a wealth of top-quality clinical photos and imaging, and is of interest to pediatric neurologists, general pediatricians, primary care physicians and emergency physicians, in training and practice.