Kemi

For courses in introductory, preparatory, and basic chemistry.

Basic Chemistry introduces students to the essential scientific and mathematical concepts of general chemistry. With accessible language and a moderate pace, the text is easy-to-follow for first-time chemistry students, as well as those hoping to renew their studies of the subject.

In the 5th Edition, Bill and Karen Timberlake carefully develop core ideas while relating them to the possibility of future careers. The book guides students through basic chemistry problem solving with engaging visuals and a focus on developing the math skills necessary to be successful in the course. End of chapter questions strategically promote integration of cumulative ideas, allowing students to develop a strong foundation for learning chemistry and encouraging them to continue their studies in the field. The main objective in writing this text is to make the study of chemistry an engaging and a positive experience for students by relating the structure and behaviour of matter to real life.

This new edition introduces more problem-solving strategies, more problem-solving guides, new features in the Sample Problems; Try It First before the Solution and Connect in the Analyse the Problem step of the solution, a new Engage feature, new conceptual and challenge problems, and new sets of combined problems.

For courses in General, Organic, and Biological Chemistry

Active learning, an increased focus on clinical examples, updates based on current teaching and research findings, and digital innovations designed to engage and personalise students’ experience make Fundamentals of General, Organic, and Biological Chemistry simply the best choice for students with a future in allied health. With the 8th Edition, the authors make learning chemistry a more active experience through features designed to get students doing chemistry. Every chapter features Hands on Chemistry sections that deepen students’ understanding of chemistry by having them perform elementary experiments with everyday household items. Group Problemsat the end of every chapter are designed for in-class use and motivate students toward higher level thinking, such as how concepts fit together and how to apply these concepts in a clinical application. All of the chapter openers, including many of the Chemistry in Action boxes and end-of-chapter problems, have been rewritten for a stronger clinical focus that provides more relevance to allied health majors.

När det gäller sömn och vakenhet måste vi överväga vad de är: om de är unika för själen eller kroppen, eller gemensamma för båda … dessutom av vilken orsak uppkommer de som egenskaper hos djur … – Aristoteles, Om sömn och sömnlöshet, 350 före vår tideräkning

I det antika Grekland var sömnen och drömmarnas värld centrala i myterna och filosofin. Vår förundran över sömnen lever kvar och har genom historien lett till otaliga experiment och teorier. Människan har gått från att använda sig av vad hon hittar i naturen till att i laboratorier forska fram det perfekta pillret för att antingen söva oss eller hålla oss vakna. Vad sägs om dårrepe eller vallmo till kvällen och en kopp kaffe eller kokablad för att piggna till? Gemensamt för alla dessa substanster är att de har påverkat vårt kemiska förhållande till natten.

I Nattens gudar leder Ulf Ellervik oss genom kulturhistorien och vetenskapen för att finna svar på sömnens och vakenhetens gåtor.

For courses in introductory, preparatory, and basic chemistry.

Basic Chemistry introduces students to the essential scientific and mathematical concepts of general chemistry. With accessible language and a moderate pace, the text is easy-to-follow for first-time chemistry students, as well as those hoping to renew their studies of the subject.

In the 5th Edition, Bill and Karen Timberlake carefully develop core ideas while relating them to the possibility of future careers. The book guides students through basic chemistry problem solving with engaging visuals and a focus on developing the math skills necessary to be successful in the course. End of chapter questions strategically promote integration of cumulative ideas, allowing students to develop a strong foundation for learning chemistry and encouraging them to continue their studies in the field. The main objective in writing this text is to make the study of chemistry an engaging and a positive experience for students by relating the structure and behaviour of matter to real life.

This new edition introduces more problem-solving strategies, more problem-solving guides, new features in the Sample Problems; Try It First before the Solution and Connect in the Analyse the Problem step of the solution, a new Engage feature, new conceptual and challenge problems, and new sets of combined problems.

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