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Bien-Hoa Air Base, Republic of South Viet-Nam, fall of 1972.  Marine Air Group 12, composed of two Marine fixed-wing, jet attack aircraft squadrons are flying, the A-4 Skyhawk, a light, extremely fast and maneuverable attack dive bomber, in support of South Vietnamese ground troops around the Saigon tactical area of operations, and to the west towards Cambodia.  In addition, U.S. Marine helicopters augmenting the South Vietnamese Air Force, fly from the deck of the USS Tripoli, steaming off the coast.  Pilots must now deal with the sophisticated Russian supplied, hand-held SA-7 anti-aircraft weapon operated by experienced North Vietnamese gun crews who have been defending their homeland in the north.  The north vietnamese fighters have been fighting for seven long years and now clearly have the momentum as they push towards their ultimate objective, Saigon.

As the jet era blossomed in the late 1950s and early 1960s, the Air Force deployed F-100, F-101, F-104, F-105, and other secondgeneration jets. The transition of the Navy's F-4 Phantom into the US Air Force occurred just as the Vietnam War began, and the first US fighters deployed to bases in South Vietnam and Thailand were all jets, with one notable exception. As F-4 Phantoms, F-100 Super Sabres, and F-105 Thunderchiefs began flying USAF combat missions in Southeast Asia, they were joined by a venerable prop-driven attack fighter, the Douglas A-1 Skyraider. For just more than nine years, Air Force pilots operated that one propeller-driven fighter, transferred from the US Navy inventory. Here, Jayne discusses the story of that airplane--its pilots, units, and missions--documenting the last prop fighter to fly combat in the Air Force.

Purpose This study aims to evaluate the association between high sensitivity troponins (hsTn) and mitral annular plane systolic excursion (MAPSE) in patients undergoing cardiac magnetic resonance imaging (cMRI). Methods Patients undergoing cMRI were prospectively enrolled. Patients with right ventricular dysfunction (< 50%) were excluded. Blood samples for measurements of hsTn and amino-terminal pro-brain natriuretic peptide (NT-proBNP) were collected at the time of cMRI. Results 84 patients were included. Median left ventricular ejection fraction was 59% (IQR 51–64%). HsTn were correlated inversely with MAPSE within multivariable linear regression models (hsTnI: Beta − 0.19; T − 1.96; p  = 0.05; hsTnT: Beta − 0.26; T − 3.26; p  = 0.002). HsTn increased significantly according to decreasing stages of impaired MAPSE ( p  < 0.003). HsTn discriminated patients with impaired MAPSE < 11 mm (hsTnT: AUC = 0.67; p  = 0.008; hsTnI: AUC = 0.64; p  = 0.03) and < 8 mm (hsTnT: AUC = 0.79; p  = 0.0001; hsTnI: AUC = 0.75; p  = 0.001) and were still significantly associated in multivariable logistic regression models with impaired MAPSE < 11 mm (hsTnT: OR = 4.71; p  = 0.002; hsTnI: OR = 4.22; p  = 0.009). Conclusions This study demonstrates that hsTn are able to reflect MAPSE being assessed by cMRI.

Lyndon B. Johnson and the Politics of Arms Sales to Israel seeks to reconstruct and elucidate the processes behind the decisions made by the Johnson Administration during the years 1965-68 to sell Israel M-48 tanks, A-4 Skyhawk planes and F-4 Phantom planes. This examination is based on a distinction between three factions which competed for influence within Washington's high-policy elite: the traditionalists (whose major representative was Secretary of State Dean Rusk); the pragmatists (whose most outspoken representative was Robert Komer of the National Security Council); and the domestically oriented policymakers (the central decision-maker who quintessentially exemplifies this category being President Johnson). This book is a sequel to John F. Kennedy and the Politics of Arms to Israel, which examined the first arms deal between the US and Israel. 1. Introduction: Lyndon B. Johnson and the Politics of Arms Sales to Israel: In the Shadow of the Hawk 2. The Road to the M-48A Patton Tank 3. The Road to the A-4E Skyhawk Fighter-Bomber 4. Beyond the F-4 Phantom Fighter-Bomber: The Changing Dynamics of the Politics of Arms Sales to Israel

From Bitcoin to NFTs, crypto is making headlines. But what exactly is it, and how does it work? Experts go beyond the hype and skepticism to unravel the social and technological underpinnings of crypto--exploring how it came to be and why this new technology may change more than just money.

Architect and social critic Michael Sorkin develops his own vision of the future lower Manhattan through a series of chronologically organized essays illustrated with full-color images of his own plans. Mixing his inimitable brand of social criticism with more personal reflections, Starting From Zero offers a striving challenge to the Ground Zero redevelopment plan recently chosen by New York's establishment insiders.