The increase in wage inequality since 1980 in the United States has been more pronounced in larger cities, even after accounting for di¤erences in the composition of the workforce across locations. Using Census of Population and Census of Manufacturers data aggregated to the local labor market level, this paper examines the importance of changes in the factor bias of agglomeration economies, ca...

This paper demonstrates the optical trapping of micron-sized gold nanoparticle aggregates GNAs with a TEM00 mode laser at 532 nm and reports the observation of an unusual light-induced agglomeration phenomenon that occurs besides the trapping of the GNAs. The observed agglomerate has a 60–100 m donut-shaped metal microstructure with the rate of formation dependent on the laser power used. Citra...

Entropy Agglomeration (EA) is a hierarchical clustering algorithm introduced in 2013. Here, we generalize it to define Generalized Entropy Agglomeration (GEA) that can work with multiset blocks and blocks with rational occurrence numbers. We also introduce a numerical categorization procedure to apply GEA to numerical datasets. The software REBUS 2.0 is published with these capabilities: http:/...

A rapid and facile signal enhancement method for detecting alpha-fetoprotein (AFP) was developed using the magnetic agglomeration of ferromagnetic nanoparticles and microcantilever sensors. The resonance frequency and deflection of the cantilevers were found to be more than 10-fold greater than that before physical agglomeration of the free nanoparticles around the magnetized nanoparticles.

This paper analyzes the impact of fiscal equalization on asymmetric tax competition when positive agglomeration externalities are present. It shows that equalization of standardized tax revenue improves the spatial allocation of capital provided that agglomeration externalities are sufficiently strong. JEL Classification: R12, H71, H73.

This paper develops a model of economic growth and activity locating endogenously on a 3dimensional featureless global geography. The same economic forces influence simultaneously growth, convergence, and spatial agglomeration and clustering. Economic activity is not concentrated on discrete isolated points but instead a dynamically-fluctuating, smooth spatial distribution. Spatial inequality i...

This thesis examines several distinct aspects of agglomeration externalities within an urban economy. In particular, the work focuses on location decisions of agents who face trade-offs between advantages in dense locations versus cheaper land prices available in suburban and exurban regions of the city. Two general equilibrium models of location are presented which study different aspects of l...

Particle aggregation and film agglomeration have been among the main technical hurdles for solid-state thin film development and have been observed in many semiconductor and catalytic systems. In heterogeneous catalysis, particle aggregation leads to reduction of effective surface area and degradation of catalytic performance. On semiconductor surfaces, film agglomeration may give rise to elect...

Agglomeration of nanoparticles in biological fluids is a pervasive phenomenon that leads to difficulty in the interpretation of results from in vitro exposure, primarily due to differing particokinetics of agglomerates to nanoparticles. Therefore, well-defined small agglomerates were designed that possessed different particokinetic profiles, and their cellular uptake was compared to a computati...