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Empirical tests in the 1990s found little evidence of poor countries catching up with rich - unconditional convergence - since the 1960s, and divergence over longer periods. This stylized fact spurred several developments in growth theory, including AK models, poverty trap models, and the concept of convergence conditional on determinants of steady ...
Yang You, Jack Willis, Michael Kremer
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Peptide hydrogel with self-healing and redox-responsive properties
We have rationally designed a peptide that assembles into a redox-responsive, antimicrobial metallohydrogel. The resulting self-healing material can be rapidly reduced by ascorbate under physiological conditions and demonstrates a remarkable 160-fold ...
Areetha D’Souza +8 more
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Synergistic nanoarchitecture of mesoporous carbon and carbon nanotubes for lithium–oxygen batteries
A rechargeable lithium–oxygen battery (LOB) operates via the electrochemical formation and decomposition of solid-state Li2O2 on the cathode. The rational design of the cathode nanoarchitectures is thus required to realize high-energy-density and long ...
Yeongsu Kim +4 more
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A key economic issue is whether poor countries or regions tend to grow faster than rich ones: are there automatic forces that lead to convergence over time in the levels of per capita income and product? The authors use the neoclassical growth model as a framework to study convergence across the forty-eight contiguous U.S. states.
Barro, Robert, Sala-i-Martin, Xavier
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Memristors, owing to their uncomplicated structure and resemblance to biological synapses, are predicted to see increased usage in the domain of artificial intelligence.
Muhammad Ismail +4 more
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Heterogeneous convergence [PDF]
We use US county-level data to estimate convergence rates for 22 individual states. We find significant heterogeneity. E.g., the California estimate is 19.9% and the New York estimate is 3.3%. Convergence rates are essentially uncorrelated with income levels.
Young, Andrew +2 more
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On the Convergence of Stochastic Process Convergence Proofs [PDF]
Convergence of a stochastic process is an intrinsic property quite relevant for its successful practical for example for the function optimization problem. Lyapunov functions are widely used as tools to prove convergence of optimization procedures. However, identifying a Lyapunov function for a specific stochastic process is a difficult and creative ...
Borja Sánchez-López, Jesus Cerquides
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This paper surveys various ideas of convergence and their connections with topology, completion, and to a lesser extend, uniformity. In addition, --- it sketches the origins of abstract axiomatic treatments of convergence (as their extensive bibliography shows, these began to appear before topology became the paradigm for convergence), --- it mentions ...
Bentley, H.L. +2 more
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In this study, we performed metal (Ag, Ni, Cu, or Pd) electroplating of core–shell metallic Ag nanowire (AgNW) networks intended for use as the anode electrode in organic light-emitting diodes (OLEDs) to modify the work function (WF) and conductivity of ...
Hyungseok Kang +7 more
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Protein nanoparticles directed cancer imaging and therapy
Cancer has been a serious threat to human health. Among drug delivery carriers, protein nanoparticles are unique because of their mild and environmentally friendly preparation methods. They also inherit desired characteristics from natural proteins, such
Yao Miao +4 more
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