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\"In February of 2013, Richard Stengel, the former editor-in-chief of Time, joined the Obama administration as Under Secretary of State for Public Diplomacy and Public Affairs. Within days, two shocking events made world-wide headlines: ISIS executed American journalist James Foley on a graphic video seen by tens of millions, and Vladimir Putin's \"little green men\"-Russian special forces-invaded Crimea, amid a blizzard of Russian denials and false flags. What these events had in common besides their violent law-lessness is that they were the opening salvos in a new era of global information war, where countries and non-state actors use social media and disinformation to create their own narratives and undermine anyone who opposes them. Stengel was thrust onto the front lines of this battle as he was tasked with responding to the relentless weaponizing of information and grievance by ISIS, Russia, China, and others. He saw the scale of what he was up against and found himself hopelessly outgunned. Then, in 2016, the wars Stengel was fighting abroad came home during the presidential election, as \"fake news\" became a rallying cry and the Russians used the techniques they learned in Ukraine to influence the election here. Rarely has an accomplished journalist been not only a close observer but also a principal participant in the debates and decisions of American foreign policy. Stengel takes you behind the scenes in the ritualized world of diplomacy, from the daily 8:30 morning huddle with a restless John Kerry to a midnight sit-down in Saudi Arabia with the prince of darkness Mohammed bin Salman. The result is a rich account of a losing battle against trolls and bots-who are every bit as insidious as their names imply.\"-- Provided by publisher.

Aims The BioBone consortium aims to validate circulating CD8 + TEMRA cells as a prognostic biomarker for predicting impaired fracture healing outcomes in a prospective, blinded, multicenter clinical study. The primary performance parameters are the pre-operative identification of at least 30% of patients who ultimately experience impaired healing at the first clinical endpoint, with a specificity greater than 90% to minimize the false-positive rate. Methods BioBone is a prospective, blinded, multicenter biomarker validation study designed to assess the prognostic value of circulating CD8 + TEMRA cells in fracture healing. A total of 640 patients aged 18 to 80 years with fractures of the humeral diaphysis, radial and/or ulnar diaphysis, femoral neck, trochanteric femur, femoral diaphysis, distal femur, proximal tibia, tibial diaphysis and distal tibia will be enrolled. The study is powered to validate the target assay performance and accounting for 6–7 potential confounders at an expected incidence of 10% impaired healing. Biomarker levels will be measured pre- and post-operatively using flow cytometry (FC) and patients will be monitored for one year. The primary endpoint is fracture healing status at 17–19 weeks (normal healing or delayed healing), while the secondary endpoint evaluates healing at nine months (delayed healing or pseudarthrosis). Fracture consolidation will be assessed through radiographs or computed tomography (CT) scans in conjunction with clinical assessments such as range of motion and weight-bearing capacity. Key outcome measures include radiographic analysis (RUST/RUSH scores), functional and patient-reported outcomes (e.g. weight bearing ability, range of motion, and the SF-36 questionnaire), as well as socioeconomic parameters (e.g. work capacity, rehabilitation needs, mobility). The predictive performance (sensitivity, specificity, NPV, PPV) of the biomarker will be determined in a prospective, double-blinded analysis, where CD8 + TEMRA blood levels are measured prior to surgical treatment and healing status at clinical endpoints is assessed by independent observers. Additional immunological examination and in vitro analysis of blood and fracture hematoma samples will further investigate the mechanism of action of CD8 + TEMRA cells in impaired human bone regeneration. Conclusion The BioBone study will validate the suitability of CD8 + TEMRA cells as a prognostic marker for impaired fracture healing and their integration into routine clinical practice. The results could have a global impact by incorporating immune-based prognostic tools into clinical workflows, paving the way for precision medicine approaches in trauma care. The BioBone study is funded by the German Federal Ministry of Education and Research (BMBF).

Now more than ever, we long for heroes and have too few. Nelson Mandela, who died in 2013 at the age of ninety-five, is the closest thing the world has had to a secular saint. He liberated a country from a system of violent prejudice and united oppressor and oppressed in a way that had never been done before. In these pages, Stengel recounts the moments when Mandela was tested and shares the wisdom he learned: why courage is more than the absence of fear; why we should keep our rivals close; why the answer is not always either/or but often \"both\" and more. Like The last lecture and Tuesdays with Morrie, this uplifting book offers us an opportunity to reflect on what really matters. It captures the spirit of this extraordinary man - warrior, martyr, husband, statesman, and moral leader - and spurs us to look within ourselves, reconsider the things we take for granted, and contemplate the legacy we'll leave behind.

Gain hands-on understanding of powerful new mixed-mode scattering parameter techniques and their applications in microwave circuit design, straight from the inventors of the techniques themselves. This groundbreaking resource uses the original research and application work in the field to describe mixed-mode S-parameter principles. Supported with over 150 illustrations, the book thoroughly explains practical techniques that help you more effectively analyze differential and multi-port systems; measure and describe multi-port circuit performance; and conduct differential circuit analyses for isolation, crosstalk, stability, noise reduction, and balance. Moreover, the book enables you to achieve greater signal integrity, offering you cutting-edge design guidance on couplers, transformers, baluns, circulators, splitters, filters, and other components. You learn powerful techniques that help you transform a haystack of single-ended microwave data into cogent differential design-oriented results, eliminate errors inherent with single-ended measurements, and speed circuit modeling and design while greatly expanding their regions of stable operation. Balanced circuit design issues such as mode specific matching, CMRR, and mode conversion are also addressed in depth.