To clarify the characteristics and localization of isolated calculation disturbances due to left parietal lesions.Case series.Tertiary care hospital.Three referred patients with stroke in region. Sixteen volunteers for age education constituted control group.Neuropsychological tests, including a battery tests acalculia Wechsler Adult Intelligence Scale, magnetic resonance imaging were performed.Three made errors process where number steps carried out simultaneously. The showed no aphasic...

ABSTRACT This paper elucidates which agglomeration patterns exist in two‐dimensional economic space and how such appear stably. Hexagonal lattices, that with without a boundary, are advanced, respectively, as practical theoretical spatial platforms of activities. Agglomeration on these lattices include hexagons central place theory, but also encompass megalopolis racetrack‐shaped decentralization. As the transport cost decreases, stable undergoes formation smallest hexagon transition to...

Abstract The mechanism of self‐organization agglomerations in a long narrow economy new economic geography model is elucidated by theoretical comparative study with racetrack economy. Computational bifurcation theory used to systematically obtain the equilibria these economies. A chain spatially repeated core–periphery patterns à la Christaller and Lösch emerges when agglomeration forces are large. Peripheral zones enlarged recurrently engender an shadow en route atomic mono‐center....

ABSTRACT Harris and Wilson (1978)'s retail location model is a pioneering work that utilizes the combination of “fast” “slow” dynamics to describe space economy. This paper elucidates model's previously unknown comparative static (bifurcation) properties in many‐location setting beyond two. We show spatial structure's evolutionary path line with decreasing transport costs exhibits remarkable property, namely, “spatial period‐doubling cascade.” Furthermore, we reveal strong linkages between...

This paper examines the effects of hypercongestion mitigation by perimeter control and introduction autonomous vehicles on spatial structures cities. By incorporating a bathtub model, we develop land use model where occurs in downtown area interacts with use. We show that decreases commuting cost short run results less dense urban structure long run. Furthermore, reveal impact depends presence hypercongestion. The may increase cause decrease suburban population; however, it make cities...

In the event of a disaster, it is very important to quickly evacuate evacuation sites in order minimize number victims disaster. Municipal governments, etc. only present their citizens with information about locations and anticipated damages disasters such as tsunami earthquakes. Thus, people at various places will not be sure routes that they should take individually. Accordingly, there need for system determining guiding accordance status traffic network, sites, victims. Various...

Self-organization of spatial patterns is investigated for a scalar field system locations on hexagonal lattice. Group-theoretic bifurcation analysis conducted to exhaustively try and find possible bifurcating patterns. All these are proved be asymptotically unstable general economic models in new geography. Microeconomic interactions among the expressed by economy model all demonstrated numerical analysis.

A hexagonal lattice is a promising and plausible spatial platform for economic agglomeration in models. This paper aims at the elucidation of mechanisms replicator dynamics on this lattice. Attention paid to existence invariant solutions that retain their patterns when bifurcation parameter changes. Such special feature dynamics, which widely used economics. theoretical procedure find proposed possible are advanced classified. Among plethora theoretically patterns, those actually become...

Self-organization of hexagonal distributions cities various sizes in Southern Germany is envisaged central place theory. Yet scientific verification this theory has been lacking over the years. To scientifically support theory, we propose a group-theoretic double Fourier spectrum analysis procedure that can detect self-organizing patterns bifurcating from uniform state. This reinforced by optimization choice an domain and spatial eigen-decomposition to capture agglomeration effects. Strong...

In Japan, flood disasters caused by record-breaking heavy rainfall frequently cause significant damages. It is also great concern that may increase and occur more due to global warming. July 2013, a event record-flooding of the Kakehashi River in Ishikawa Prefecture. this study, pseudo warming (PGW) experiments were implemented for 1998 2013 around basin. Based on results PGW simulations, with different return periods generated. Runoff analyses inundation simulations carried out forcings...