Suchergebnisse

"Twenty years ago, seemingly everything for sale at American retailers had a "Made In China" sticker on it. Now, things have changed. Every year, forty thousand Chinese factories are shuttering their doors as businesses seek cheaper labor elsewhere. Clothes manufacturing is moving to Bangladesh and Vietnam, for example, and shoes to Ethiopia. The exodus is well underway. Even as American commentators fret over "rising China," the real threat lies in a virtually unknown story: that of a nation struggling amid a profound economic transition away from manufacturing. The culprit? Profound inequality and the lack of investment in the people of the most populous place on earth. Health and education are the grave challenges for the country's future-and the world. Far from the prospect of global takeover, a China newly adrift has the potential to be our most unpredictable security challenge in the next decades. This book, a warning from Scott Rozelle and Natalie Hell, cuts through the false alarmism while laying out an ambitious plan to correct course before it's too late."

As the glittering skyline in Shanghai seemingly attests, China has quickly transformed itself from a place of stark poverty into a modern, urban, technologically savvy economic powerhouse. But as Scott Rozelle and Natalie Hell show in Invisible China, the truth is much more complicated and might be a serious cause for concern. China's growth has relied heavily on unskilled labor. Most of the workers who have fueled the country's rise come from rural villages and have never been to high school. While this national growth strategy has been effective for three decades, the unskilled wage rate is finally rising, inducing companies inside China to automate at an unprecedented rate and triggering an exodus of companies seeking cheaper labor in other countries. Ten years ago, almost every product for sale in an American Walmart was made in China. Today, that is no longer the case. With the changing demand for labor, China seems to have no good back-up plan. For all of its investment in physical infrastructure, for decades China failed to invest enough in its people. Recent progress may come too late. Drawing on extensive surveys on the ground in China, Rozelle and Hell reveal that while China may be the second-largest economy in the world, its labor force has one of the lowest levels of education of any comparable country. Over half of China's population--as well as a vast majority of its children--are from rural areas. Their low levels of basic education may leave many unable to find work in the formal workplace as China's economy changes and manufacturing jobs move elsewhere. In Invisible China, Rozelle and Hell speak not only to an urgent humanitarian concern but also a potential economic crisis that could upend economies and foreign relations around the globe. If too many are left structurally unemployable, the implications both inside and outside of China could be serious. Understanding the situation in China today is essential if we are to avoid a potential crisis of international proportions. This book is an urgent and timely call to action that should be read by economists, policymakers, the business community, and general readers alike.

We present an analysis of the first observation of the iconic high-mass X-ray binary 4U 1700−37 with the Chandra High-Energy Transmission Gratings (HETGs) during an X-ray eclipse. The goal of the observation was to study the structure/physical conditions in the clumpy stellar wind through high-resolution spectroscopy. We find the following: (a) Emission-line brightness from K-shell transitions, corresponding to near-neutral species, directly correlates with continuum illumination. However, these lines do not greatly diminish during eclipse. This is readily explained if fluorescence K α emission comes from the bulk of the wind. (b) The highly ionized Fe xxv and Fe xxvi Ly α diminish during eclipse. Thus, they must be produced in the vicinity of the compact object where log ξ > 3. (c) To describe the emission-line spectrum, the sum of two self-consistent photoionization models with low ionization (log ξ ∼ −1) and high ionization (log ξ ∼ 2.4) is required. From their emission measures, the clump-to-interclump density ratio can be estimated to be nc/ni ∼ 300. To fit the complex He-like Si xiii profile, the plasma requires a broadening with vbulk ∼ 840 km s−1. Reproducing the observed r ≈ f line fluxes requires the addition of a third collisionally ionized plasma. (d) Emission-line widths appear unresolved at the HETG resolution with the exception of silicon. There is no clear radial segregation between (quasi-)neutral and ionized species, consistent with cold wind clumps interspersed in a hot rarefied interclump medium. ; This research has been funded under the project ESP2017-85691-P. The research leading to these results has received funding from the European Union's Horizon 2020 Programme under the Activities for the High-Energy Astrophysiscs Domain (AHEAD) project (grant agreement no. 654215). Victoria Grinberg (VG) was supported through the Margarete von Wrangell fellowship by the ESF and the Ministry of Science, Research and the Arts of Baden-Württemberg. Work at LLNL was performed under the auspices of the U.S. Department of Energy under contract no. DE-AC52-07NA27344 and supported through National Aeronautics and Space Administration (NASA) grants to Lawrence Livermore National Laboratory (LLNL). Lida M. Oskinova acknowledges Deutsches Zentrum für Luft und Raumfahrt (DLR) grant FKZ 50 OR 1508 and partial support by the Russian Government Program of Competitive Growth of Kazan Federal University.