From the late 1950s to 1976, the U.S. human spaceflight program advanced as it did largely due to the extraordinary efforts of Austrian immigrant George M. Low. Described as the "ultimate engineer" during his career at NASA, Low was a visionary architect and leader from the agency's inception in 1958 to his retirement in 1976. As chief of manned spaceflight at NASA, Low was instrumental in the Mercury, Gemini, and Apollo programs. At the end of his NASA career, Low was one of the leading figures in the development of the Space Shuttle in the early 1970s, and he was instrumental in NASA's transition into a post-Apollo world. Chronicling Low's escape from Nazi-occupied Austria to his helping land a man on the moon, The Ultimate Engineer sheds new light on one of the most fascinating and complex personalities of the golden age of U.S. human space travel.

"Beginning early in Mary Tudor's turbulent reign, [this book] explores the lives of a pair of sisters as dangerously close to the throne as their sister Lady Jane Grey, who died on the executioner's block at the age of 16, after being queen for nine days"--

“A welcome tribute to the persistence, precision and humanity of Washington Roebling and a love-song for the mighty New York bridge he built.” - The Wall Street Journal Chief Engineer is the first full biography of a crucial figure in the American story--Washington Roebling, builder of the Brooklyn Bridge. One of America's most iconic and recognizable structures, the Brooklyn Bridge is as much a part of New York as the Statue of Liberty or the Empire State Building. Yet its distinguished builder is too often forgotten--and his life is of interest far beyond his chosen field. It is the story of immigrants, the frontier, the Civil War, the making of the modern world, and a man whose life modeled courage in the face of extreme adversity. Chief Engineer is enriched by Roebling's own eloquent voice, unveiled in his recently discovered memoir, previously thought lost to history. The memoir reveals that his father, John-a renowned engineer who came to America after humble beginnings in Germany-was a tyrannical presence in Roebling's life. It also documents Roebling's time as a young man in the Union Army, where he built bridges to carry soldiers across rivers and fought in pivotal battles from Antietam to Gettysburg. He then married the remarkable Emily Warren Roebling, who played a crucial role in the construction of the Brooklyn Bridge, Roebling's grandest achievement-but by no means the only one. Elegantly written with a compelling narrative sweep, Chief Engineer introduces Washington Roebling and his era to a new generation of readers.

This issue of Heart Failure Clinics--edited by Dr. Eduardo Bossone--will cover The Right Heart Pulmonary Circulation Unit. Topics include Pathophysiology, Increased Systemic versus Increased Pulmonary Pressures, Pulmonary Arterial Hypertension, Right Heart Pulmonary Circulation Unit in Connective Tissue Disease, Right Heart Pulmonary Circulation Unit in Congenital Heart Diseases, Pulmonary Hypertension and Heart Failure, Right Heart Pulmonary Circulation Unit in Cardiomyopathies and Storage Diseases, Pulmonary Hypertension, Right Heart Pulmonary Circulation Unit at High Altitude, Chronic Thromboembolic Pulmonary Hypertension, Combining Invasive and Non-Invasive Evaluation for the Diagnosis of Pulmonary Hypertension, Imaging the Right Heart Pulmonary Circulation Unit: The Role of Ultrasound, Imaging the Right Heart Pulmonary Circulation Unit: The Role of CT and MRI, Biomarkers in Pulmonary Hypertension, Pulmonary Hypertension Related to Diffuse Parenchymal Lung Disease, Chronic Right Heart Failure, Exercise Training and Rehabilitation in Pulmonary Hypertension, and Right Heart Circulation Unit and Left Heart Valvular Diseases.

Educators and technology experts share their thoughts on classroom technology and how equity, the digital divide, and other issues need to be addressed to ensure students and teachers are realizing the full potential of different technologies.