Available for the first time in Achieve, the definitive reference text for biochemistry Lehninger Principles of Biochemistry, 8e helps students focus on the most important aspects of biochemistry- the principles! Dave Nelson, Michael Cox, and new co-author Aaron Hoskins identify the most important principles of biochemistry and direct student attention to these with icons and resources targeted to each principle. The 8th edition has been fully updated for focus, approachability, and up-to-date content. New and updated end-of-chapter questions -all available in the Achieve problem library with error-specific feedback and thorough solutions. These questions went through a rigorous development process to ensure they were robust, engaging and accurate. Lehninger Principles of Biochemistry, 8e continues to help students navigate the complex discipline of biochemistry with a clear and coherent presentation. Renowned authors David Nelson, Michael Cox, and new co-author Aaron Hoskins have focused this eighth edition around the fundamental principles to help students understand and navigate the most important aspects of biochemistry. Text features and digital resources in the new Achieve platform emphasize this focus on the principles, while coverage of recent discoveries and the most up-to-date research provide fascinating context for learning the dynamic discipline of biochemistry. Achieve supports educators and students throughout the full range of instruction, including assets suitable for pre-class preparation, in-class active learning, and post-class study and assessment. The pairing of a powerful new platform with outstanding biochemistry content provides an unrivaled learning experience.

They were little more than boys in the turbulent 1960s when Lee Roy Herron and his high school buddy, David Nelson, signed up for Marine Corps officer training. Decisions during college took the pair in different directions--Lee Roy to the infantry, language school, and the cauldron of Vietnam, David to law school, the JAG office, and eventually to Okinawa.
When Lt. Lee Roy Herron was killed on the front lines in February 1969, only two months into his tour of duty, Nelson mourned the tragic loss. Haunted for years afterward, he questioned his own choices, his relative safety, and his backstage role in the conflict while his friend paid the ultimate price.
A chance encounter with a retired officer in 1997 spurred Nelson to delve more deeply into Lee Roy's death. What really happened that day on the hillside above A Shau Valley on the Laotian border? A quest to understand his old friend's experience and sacrifice led Nelson to military archives, to the homes of friends and family back in West Texas, and even to battle sites in Vietnam. What he learned caused him to rethink the nature of fate, friendship, and heroism--and touches lives even today.
The final chapter in Nelson's journey to honor his fallen friend, David and Lee Roy will resonate with Vietnam veterans, their families, and survivors of any war who carry the memory with them.

The number one bestselling textbook for the introductory biochemistry course because it brings clarity and coherence to an often unwieldy discipline, offering a thoroughly updated survey of biochemistry's enduring principles, definitive discoveries, and groundbreaking new advances with each edition. This new Seventh Edition maintains the qualities that have distinguished the text since Albert Lehninger's original edition-clear writing, careful explanations of difficult concepts, helpful problem-solving support, and insightful communication of contemporary biochemistry's core ideas, new techniques, and pivotal discoveries. Again, David Nelson and Michael Cox introduce students to an extraordinary amount of exciting new findings without an overwhelming amount of extra discussion or detail. With this edition, W.H. Freeman and Sapling Learning have teamed up to provide the book's richest, most completely integrated text/media learning experience yet, through an extraordinary new online resource; SaplingPlus. See 'Instructor Resources' and 'Student Resources' for further information.