In environments without transfers, such as refugee resettlement, school choice, organ transplants, course allocation, and voting, we show that Random Priority is the unique mechanism that is obviously strategy-proof, Pareto efficient, and symmetric; hence providing an explanation for the popularity of this mechanism. We also construct the full class of obviously strategy-proof mechanisms, and e...

Synaptic strengthening induced by brain-derived neurotrophic factor (BDNF) is associated with learning and is coupled to transcriptional activation. However, identification of the spectrum of genes associated with BDNF-induced synaptic plasticity and the correlation of expression with learning paradigms in vivo has not yet been studied. Transcriptional analysis of BDNF-induced synaptic strength...

Background: Regular physical activity increases physical fi tness and lowers ventilation during mild and moderate exercise thereby reducing the likelihood of provoking exercise-induced asthma. Regular exercise may also reduce the perception of breathlessness through a number of mechanisms including strengthening respiratory muscles. Subjectively, many asthmatics report that they are symptomatic...

Dispersion-strengthened-cast aluminum (DSC-Al), consisting of a coarse-grained aluminum matrix containing two populations of particles (30 vol.% of 300 nm Al2O3 incoherent dispersoids and 0.2–0.3 vol.% of 6–60 nm coherent Al3Sc precipitates), was studied. At ambient and elevated temperatures, both populations of particles contribute to strengthening. At 300 C, creep threshold stresses are consi...

Previous studies investigating domain-initial prosodic strengthening have shown that consonants undergo cumulative strengthening at the beginning of prosodic domains. However, evidence for articulatory strengthening of domain-initial vowels is sparse [1], [2]. At least two possible hypotheses exist why vowels fail to show domain-initial strengthening: a) Domain-initial strengthening only target...

To provide insight into the relationships between precipitation phenomena, grain size and mechanical behavior in a complex precipitation-strengthened alloy system, Al 7075 alloy, a commonly used aluminum alloy, was selected as a model system in the present study. Ultrafine-grained (UFG) bulk materials were fabricated through cryomilling, degassing, hot isostatic pressing and extrusion, followed...

Introduction The National Rural Health Mission (NRHM) was launched in 2005. One of the key components of the NRHM is the identification and training of Accredited Social Health Activists (ASHA) for each village in the country. They have undergone several rounds of training and received additional training like 10-day training on child survival in Uttar Pradesh state. Despite these training prog...