Refugee movements and aid responsiveness

This article analyses the impact of refugee migration movements on the long-term and short-term aid allocation decisions of bilateral donors. We distinguish between different types of forced migrants: internally displaced persons (IDPs) that stay in their country of origin, cross-border refugees that flee to neighboring countries, and asylum seekers in Western donor states. For the period 1992 to 2003, empirical evidence on 18 donor and 148 recipient countries suggests that short-term emergency aid is given to all types of refugee situations, but is predominantly directed towards the countries of origin. For the allocation of long-term development aid, donor states focus even more on the sending-countries of forced migrants; in general, they increase aid volumes only for the home countries of refugees, not for the hosting countries. This preference for the countries of origin is even stronger when these are sendingcountries of asylum seekers to the Western aid-giving states.Bilateral aid allocation, refugee movements

Civil Wars and International Trade.

This paper analyzes empirically the relationship between civil wars and international trade. We first show that trade destruction due to civil wars is very large and persistent and increases with the severity of the conflict. We then identify two effects that trade can have on the risk of civil conflicts: it may act as a deterrent if trade gains are put at risk during civil wars but it may also act as an insurance if international trade provides a substitute to internal trade during civil wars. We find support for the presence of these two mechanisms and conclude that trade openness may deter the most severe civil wars (those that destroy the largest amount of trade) but may increase the risk of lower scale conflicts.

Make Trade Not War?

This paper analyses theoretically and empirically the relationship between military conflicts and trade. We show that the conventional wisdom that trade promotes peace is only partially true even in a model where trade is economically beneficial, military conflicts reduce trade, and leaders are rational. When war can occur because of the presence of asymmetric information, the probability of escalation is lower for countries that trade more bilaterally because of the opportunity cost associated with the loss of trade gains. However, countries more open to global trade have a higher probability of war because multilateral trade openness decreases bilateral dependence to any given country and the cost of a bilateral conflict. We test our predictions on a large data set of military conflicts on the 1950-2000 period. Using different strategies to solve the endogeneity issues, including instrumental variables, we find robust evidence for the contrasting effects of bilateral and multilateral trade openness. For proximate countries, we find that trade has had a surprisingly large effect on their probability of military conflic

The Economic Incentives of Cultural Transmission: Spatial Evidence from Naming Patterns across France

This paper aims at studying how economic incentives influence cultural transmission. We do so in the context of naming decisions, a crucial expression of cultural identity. Our focus is on Arabic versus Non-Arabic names given by parents to their newborn babies in France over the 2003-2007 period. Our model of cultural transmission disentangles between three determinants: (i) vertical transmission of parental culture; (ii) horizontal influence from the neighborhood; (iii) economic penalty associated with names that sound culturally distinctive. Our identification is based on the sample of households being exogenously allocated across public housings dwellings. We find that economic incentives largely influence naming choices: In the absence of economic penalty, the annual number of babies born with an Arabic name would have been more than 50 percent larger. Our theory-based estimates allow us to perform a welfare analysis where we gauge the strength of cultural attachment in monetary units. We find that the vertical transmission of an Arabic name provides the same shift in parents' utility as a 3% rise in lifetime income of the child

The Geography of Conflicts and Regional Trade Agreements

In addition to standard trade gains, regional trade agreements (RTAs) can promote peaceful relations by increasing the opportunity cost of conflicts. Country pairs with large trade gains from RTAs and a high probability of conflict should be more likely to sign an RTA. Using data from 1950 to 2000, we show that this complementarity between economic and politics determines the geography of RTAs. We disentangle trade gains from political factors by a theory-driven empirical estimation and find that country pairs with higher frequency of past wars are more likely to sign RTAs, the more so the larger the trade gains

Visual sensory cortices causally contribute to auditory word recognition following sensorimotor-enriched vocabulary training

Funding This work was funded by German Research Foundation (grant KR 3735/3-1), a Max Planck Research Group to K.v.K., and an Erasmus Mundus Postdoctoral Fellowship to B.M.. B.M. is also supported by the European Research Council Consolidator grant SENSOCOM 647051 to K.v.K..Peer reviewedPublisher PD

How can we learn foreign language vocabulary more easily?

The authors would like to thank those who assisted in the translation of the articles in this Collection to make them more accessible to kids outside English-speaking countries, and for the Jacobs Foundation for providing the funds necessary to translate the articles. For this article, they would especially like to thank Nienke van Atteveldt and Sabine Peters for the Dutch translation. This work was funded by the German Research Foundation grant KR 3735/3-1, a Schulbezogene Forschung grant from the Saxony Zentrum für Lehrerbildung und Schulforschung (ZLS), and an Erasmus Mundus Postdoctoral Fellowship in Auditory Cognitive Neuroscience. BM also supported by the European Research Council Consolidator Grant SENSOCOM 647051 to KvK.Peer reviewedPublisher PD

Interaction of Water with Atomic Layer Deposited Titanium Dioxide on p‐Si Photocathode: Modeling of Photoelectrochemical Interfaces in Ultrahigh Vacuum with Cryo‐Photoelectron Spectroscopy

This study combines cryo‐photoelectron spectroscopy and electrochemical analysis techniques to investigate the p‐Si/SiO₂/TiO₂/H₂O system in the context of water‐splitting. Atomic layer deposition is used for the preparation of a TiO₂ thin film coating for a p‐Si/SiO₂ photocathode. First, an interface experiment is performed to study the contact properties of the interface between p‐Si/SiO₂ and TiO₂. For the p‐Si/TiO₂ heterojunction, a downward band bending of 0.3 eV is found for the p‐Si toward the interface. Second, a water adsorption experiment is conducted, which allows the investigation of the surface chemistry of the TiO₂ coating in contact to water. A direct correlation between the amount of surface hydroxide species, formed due to water dissociation, and Ti³⁺ defect state density is found. Furthermore, a surface water species can be identified in addition to the commonly found bulk molecular water. Together with the results from a Mott–Schottky analysis, a complete energy level alignment can be constructed

Towards 3D printed multifunctional immobilization for proton therapy: initial materials characterization

Purpose: 3D printing technology is investigated for the purpose of patient immobilization during proton therapy. It potentially enables a merge of patient immobilization, bolus range shifting, and other functions into one single patient-speci c structure. In this rst step, a set of 3D printed materials is characterized in detail, in terms of structural and radiological properties, elemental composition, directional dependence, and structural changes induced by radiation damage. These data will serve as inputs for the design of 3D printed immobilization structure prototypes. Methods: Using four di erent 3D printing techniques, in total eight materials were subjected to testing. Samples with a nominal dimension of 20×20×80 mm3 were 3D printed. The geometrical printing accuracy of each test sample was measured with a dial gage. To assess the mechanical response of the samples, standardized compression tests were performed to determine the Young’s modulus. To investigate the e ect of radiation on the mechanical response, the mechanical tests were performed both prior and after the administration of clinically relevant dose levels (70 Gy), multiplied with a safety factor of 1.4. Dual energy computed tomography (DECT) methods were used to calculate the relative electron density to water ρe, the e ective atomic number Ze , and the proton stopping power ratio (SPR) to water SPR. In order to validate the DECT based calculation of radiological properties, beam measurements were performed on the 3D printed samples as well. Photon irradiations were performed to measure the photon linear attenuation coe cients, while proton irradiations were performed to measure the proton range shift of the samples. The direc- tional dependence of these properties was investigated by performing the irradiations for di erent orientations of the samples. Results: The printed test objects showed reduced geometric printing accuracy for 2 materials (deviation > 0.25 mm). Compression tests yielded Young’s moduli ranging from 0.6 to 2940 MPa. No deterioration in the mechanical response was observed after exposure of the samples to 100 Gy in a therapeutic MV photon beam. The DECT-based characterization yielded Ze ranging from 5.91 to 10.43. The SPR and ρe both ranged from 0.6 to 1.22. The measured photon attenuation coe cients at clinical energies scaled linearly with ρe. Good agreement was seen between the DECT estimated SPR and the measured range shift, except for the higher Ze . As opposed to the photon attenuation, the proton range shifting appeared to be printing orientation dependent for certain materials. Conclusions: In this study, the rst step toward 3D printed, multifunctional immobilization was performed, by going through a candidate clinical work ow for the rst time: from the material printing to DECT characterization with a veri cation through beam measurements. Besides a proof of concept for beam modi cation, the mechanical response of printed materials was also investigated to assess their capabilities for positioning functionality. For the studied set of printing techniques and materials, a wide variety of mechanical and radiological properties can be selected from for the intended purpose. Moreover the elaborated hybrid DECT methods aid in performing in-house quality assurance of 3D printed components, as these methods enable the estimation of the radiological properties relevant for use in radiation therapy