Purpose: The article aims to identify the factors that influence levels of debt in Polish local governments. Specifically, we look at structure units' revenue and expenditure try determine which characteristics have a significant impact on levels. Design/Methodology/Approach: We divide our analysis into three types municipalities, urban, rural, urban-rural municipalities. find each this type mu...

A multi-dimensional scanning lidar has been developed for tracking and monitoring aerosol plumes in urban settings. The reliability of the system has been demonstrated and plans for additional units are in place to create a unique scanning lidar network. The paper discusses the current capabilities of the instrument and research underway to extract more information, such as quantitative aerosol...

Problems of adolescent drug misuse are increasingly common. A retrospective study was undertaken to compare the data from adolescents who attended the accident and emergency department of an urban children's hospital in 1981 and 1985. Epidemiological characteristics of both groups are detailed. The results are discussed and the feasibility of units specialising in the management of adolescents ...

The concept of "gentrification" is becoming an important and widespread phenomenon in most of the world's cities, both developed and developing. Consequently, many people have forcibly left their places or have lived at a higher cost. Therefore this phenomenon has become one of the most controversial issues of urban studies in recent years and can be analyzed as an influential and underlying fa...

An urban environment is a dynamic system which is constantly changing in terms of space and time. There are two dimensions in any urban environment – the physical dimension and the functional dimension. All of the structures of an urban environment interact and people are the intermediaries in this process. The spatial structure of cities has been studied from various perspectives by architects...

In spatial epidemiologic and public health research it is common to use spatially aggregated units such as centroids of postal/zip codes, census tracts, dissemination areas, blocks or block groups as proxies for sample unit locations. Few studies, however, address the potential problems associated with using these units as address proxies. The purpose of this study is to quantify the magnitude ...

As described in the text, the data used in this paper stems from household surveys from 10 countries around the world, which were selected because they included questions on payments to local public good provision. Since each of the surveys is somewhat di¤erent in terms of sampling and questionnaire design, this section brie‡y describes each of these surveys one by one, including details on the...

The integration of distributed renewable energy sources in urban power systems requires locally tailored approaches. This paper studies the impact of storage penetration and its coordination in three representative urban areas in Amsterdam: a residential, a business and a mixed area. Results show considerable benefits of storage and its coordination in all three areas, assuming a high (50%) pen...

This paper presents a novel method to partition urban space with respect to its mobility network rather than abstract administrative boundaries or simple grids. The main goal of our method is to support mobility infrastructure planning and optimization in an urban environment. To this end, our tessellation, which is based on constrained Voronoi tessellation, generates cells that are compact and...