The pioneer astronauts who took America into space tell their personal stories about the challenges they faced -- their fears, joys, friendships, and successes.

Chosen from hundreds of crackerjack pilots for their fitness, intelligence, and courage, the original Mercury Seven astronauts risked their lives to cross the space frontier. In "We Seven, " they take readers behind the scenes to show them their training, technology, and teamwork, and to share personal stories, including the lighter moments of their mission. They bring readers inside the Mercury program -- even into the space capsules themselves. "We Seven" straps you in with the astronauts and rockets you along for the ride.

Share Alan Shepard's exhilaration as he breaks through the earth's atmosphere. Endure moments of panic with Gus Grissom when his hatch blows, stranding him in the open sea. Race with John Glenn as he makes split-second life-or-death maneuvers during reentry, and feel his relief when he emerges safe but drenched with sweat.

Despite such heroism, Project Mercury was more than the story of individual missions. It defined the manned space flight program to come, from Gemini through Apollo. In "We Seven, " America's original astronauts tell us firsthand -- as only they can -- about the space program they pioneered, and share with us the hopes and dreams of the U.S. at the dawn of a new era.

Presenting innovative modelling approaches to the analysis of fiscal policy and government debt, this book moves beyond previous models that have relied upon the assumption that various age-specific rates and policy variables remain unchanged when it comes to generating government expenditures and tax revenues. As a result of population ageing, current policy settings in many countries are projected to lead to unsustainable levels of public debt; Tax Policy and Uncertainty explores models that allow for feedbacks and uncertainty to combat this. Applicable to any country, the models in the book explore the optimal timing and extent of tax changes in the face of anticipated high future debt. Chapters produce stochastic debt projections, including probability distribution of debt ratios at each point in time. It also offers important analysis of fiscal policy trade-offs as well as providing advice on when and by how much tax rates should be increased. Economics scholars focusing on fiscal policy will appreciate the improved models in this book that allow both for uncertainty and feedback effects arising from responses to increased debt. It will also be helpful to economic policy advisors and economists in government departments.

The Glencoe Biology Student Edition is print book. It is written in a student friendly narrative that will equip students to * Meet science standards Performance Expectations (PE's).* Integrate Science and Engineering Practices into your science classroom* Supply the Disciplinary Core Ideas (DCI's)* Correlate your lessons to NGSS* Encounter STEM projects

The Arctic Charr is a fish of wild places. It is the fish that is capable of thriving in the harsh conditions found in the fresh waters of the far north where no other fish can. Its toughness in these extreme environments, its stunning beautiful colours (more usually associated with tropical fish) and the speed with which it is known to adapt to new environments, ensure that "charismatic" is used in any description of this species. Although widespread and often abundant, surprisingly little is known about Arctic Charr in 21st century Scotland. In this volume, two ecologists with a life-long passion for this species, distil what is known, and just as importantly what is not, about Scottich Arctic Charr.