Nonuniform Thickness and Weighted Distance

Nonuniform tubular neighborhoods of curves in Euclidean n-space are studied by using weighted distance functions and generalizing the normal exponential map. Different notions of injectivity radii are introduced to investigate singular but injective exponential maps. A generalization of the thickness formula is obtained for nonuniform thickness. All singularities within almost injectivity radius are classified by the Horizontal Collapsing Property. Examples are provided to show the distinction between the different types of injectivity radii, as well as showing that the standard differentiable injectivity radius fails to be upper semicontinuous on a singular set of weight functions

Urban Competition in a regional development Project with a sustainable perspective

During the development mentality Regional Development has been a vital subject in planing. Besides Regional Disparities have been and raiseing on together with the Regional development programs and projects. in this study, It will be compared three cities whose populations is among 500 000 and 1 Milion inhabitants with their population movements, economic development, Structural urban changes and social facilities in a sustainable perspective. Southeastern Anatolia Project in which the cities are located is the biggest regional development project ever carried out in Turkey, And Gaziantep by far the biggest city in the project has a leading role not only in industry but also in commercial facilities. Besides all the cities are taking migrations and so the problems like infrastructure and lack of housing etc. After analyzing the projects development and cities evolutions it will be compared cities capabilities and its effects not only to each other but also to their hinterland. Conclusion will focus on the effects of regional Developments and its Comprehensiveness.

Gentrification as a Blanket Concept: A Tale of Resisting and Contesting Neoliberal Urbanization Programmes

This study focuses on the hegemonic ascendancy of neoliberalism encountering contestations and social unrest in Istanbul (Turkey).Through the case of Sulukule (Istanbul), our aim is to illustrate how gentrification as a neoliberal instrument utilized by a conservative/Islamist local government intervene the urban space not only for economic purposes but also culturally. This study analyzes this process, which went through in Sulukule, a former low-income neighborhood, mainly inhabited by a Gypsy community, sustaining livelihoods through a historically created entertainment culture, which was not welcomed by the conservative political cadres. This study turns the attention to the dynamics generated at the interstices of economy, politics and society, and delivers a tale of resistance and contestation to the uneasy marriage between conservative Islamism and neoliberalism. The concept of gentrification/re-generation is very much employed and referred to the diffusion of neoliberal urban policies in the context of neighborhoods as it is also put forth in this study. The case of Sulukule is a representative case in the Turkish context, especially when the urban and metropolitan transformation of Istanbul is taken into account. The way neighborhoods transform and serve the interests of the market and the capital is similar to the historical functioning of capitalism. Thus, the globalization of gentrification arguments made in the literature should not surprise us given that it is a neoliberal strategy to extract value whenever and wherever possible, in the form of gentrification aiming to revalorize usually decayed spaces or slum areas. In general, what we gather from the literature on gentrification is seen as a quick solution, or in Slater's terms as a savior for cities, its content has been depoliticized, and proposed as a key strategy to approach complex urban problems. They are complex because they are creating both winners and losers, and the irony is that nobody is really keeping track of what is happening to communities who are dislocated because of disruptions through investment in their area. While gentrifiers are shown as the primary actor of this process, the “gentrified†(both the community and the physical space) constitute the other half.

Filling position incentives in matching markets

One of the main problems in the hospital-doctor matching is the maldistribution of doctor assignments across hospitals. Namely, many hospitals in rural areas are matched with far fewer doctors than what they need. The so called "Rural Hospital Theorem" (Roth (1984)) reveals that it is unavoidable under stable assignments. On the other hand, the counterpart of the problem in the school choice context|low enrollments at schools| has important consequences for schools as well. In the current study, we approach the problem from a different point of view and investigate whether hospitals can increase their filled positions by misreporting their preferences under well-known Boston, Top Trading Cycles, and stable rules. It turns out that while it is impossible under Boston and stable mechanisms, Top Trading Cycles rule is manipulable in that sense

On the "group non-bossiness" property

We extend the concept of non-bossiness to groups of agents and say that a mechanism is group non-bossy if no group of agents can change the assignment of someone else while theirs being unaffected by misreporting their preferences. First, we show that they are not equivalent properties. We, then, prove that group strategy-proofness is sufficient for group non-bossiness. While this result implies that the top trading cycles mechanism is group non-bossy, it also provides a characterization of the market structures in which the deferred acceptance algorithm is group non-bossy

The future of the Turkish electricity industry

This report reviews the requirements being imposed on Turkey by the World Bank and the European Commission for the reform of its electricity industr