Using Capabilities to Project Growth, 2010-30

We forecast average annual GDP growth for 147 countries for 2010-30. We use a cross-country regression model where the long-run fundamentals are determined by countries' accumulated capabilities and the capacity to undergo structural transformation

Outcomes from elective colorectal cancer surgery during the SARS-CoV-2 pandemic

This study aimed to describe the change in surgical practice and the impact of SARS-CoV-2 on mortality after surgical resection of colorectal cancer during the initial phases of the SARS-CoV-2 pandemic

Democracy Does Not Cause Growth:The Importance of Endogeneity Arguments

This article challenges recent findings that democracy has sizable effects on economic growth. As extensive political science research indicates that economic turmoil is responsible for causing or facilitating many democratic transitions, the paper focuses on this endogeneity concern. Using a worldwide survey of 165 country-specific democracy experts conducted for this study, the paper separates democratic transitions into those occurring for reasons related to economic turmoil, here called endogenous, and those grounded in reasons more exogenous to economic growth. The behavior of economic growth following these more exogenous democratizations strongly indicates that democracy does not cause growth. Consequently, the common positive association between democracy and economic growth is driven by endogenous democratization episodes (i.e., due to faulty identification)

Non-vacuum twisting type N metrics

SIGLEAvailable from TIB Hannover: RR 1596(483) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekKomitet Badan Naukowych (KBN). Warsaw (Poland)DEGerman

On the evolution of ejecta fragments in compact supernova remnants

We examine the evolution of inhomogeneities (fragments) of supernova ejecta in compact supernova remnants by means of hydrodynamical modeling and simplified analytical calculations. Under the influence of intense post-shock cooling the fragments become strongly compressed as they traverse the hot shocked region between the reverse and outer shocks of the remnant. We find that the most likely outcome of the interaction of fragments with the reverse shock and the hot shocked region is their disruption resulting in generation of secondary fragments. Secondary fragments arriving at the thin and dense outer shell of the remnant give rise to brief X-ray flashes. Under suitable conditions the primary fragments may traverse the hot shocked region without being completely destroyed, to eventually reach the outer shell as dense, strongly flattened structures. Collisions of such fragments with the shell are likely to give rise to powerful X-ray flares. (orig.)Available from TIB Hannover: RR 4697(897) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman