Urban planning has played different roles ever since cities first came into existence – it has been used to build defensible cities, cities that are symbols of power and prestige, cities that are functional, and cities that are sustainable and equitable. Its role in the aftermath of conflict has also changed and evolved over the years, sometimes driven by design, sometimes by circumstance. Rece...

Abstract Using a prefectural level data, we shed the light on knowledge spillovers within three mega-economic zones (MEZs) in China by adopting spatial econometric methods. We first examine all regions, and then MEZs, finally from core cities. The results show that there are pronounced between cities China, which is stronger with high techno-proximity. Moreover, MEZs found to be but unequal. Sp...

BACKGROUND Globally, men who have sex with men and people who inject drugs remain disproportionately affected by HIV, but they have not been the focus of prevention and treatment interventions in many resource-limited settings. METHODS/DESIGN This cluster-randomized trial (conducted from June 2012 to June 2017), evaluates whether single-venue, integrated delivery of core HIV services to vulne...

The urban heat island (UHI) phenomenon is a harmful environmental problem in urban areas affecting both climatic and ecological processes. This paper aims to highlight and monitor the spatial distribution of Surface UHI (SUHI) in the Casablanca region, Morocco, using remote sensing data. To achieve this goal, a time series of Landsat TM/ETM+/OLI-TIRS images was acquired from 1984 to 2016 and an...

elineation of urban functional areas helps policymakers and planners understand the connections between core cities surrounding them, subsequently develop policies solutions that can serve local populations. This article develops a readily applicable econometric method for delineation considers aspects their surroundings. We perform analysis using data 78 Polish cities, grouping them by populat...

Nowadays, one of the characteristic orientations in social science studies focusing on cities is the ranking of cities, as well as the definition of the world’s leading cities (world cities, global cities) on the basis of various criteria. Central European countries are given just a minor role in these researches, particularly in comparison with German cities with their considerable economic pe...

Although there is a general consensus on which are the leading world cities, there is no agreedupon roster covering world cities below the highest level. This paper reports the construction of an inventory of world cities based upon their level of advanced producer services. Global service centres are identified and graded for accountancy, advertising, banking/finance and law. Aggregating these...

BACKGROUND Successful cross-national research requires methods that are both standardized across sites and adaptable to local conditions. We report on the development and implementation of the methodology underlying the survey component of the WHO Drug Injection Study Phase II--a multi-site study of risk behavior and HIV seroprevalence among Injecting Drug Users (IDUs). METHODS Standardized o...

To prevent the spread of COVID-19 in China, many cities were locked down after January 23, 2020. Based on panel data “2+26” from 10 to 15 March 2020, this paper took lockdown as a quasi-natural experiment and established multi-phase DID model investigate whether measures significantly reduced air pollution locked-down Beijing-Tianjin-Hebei (BTH) region. The core innovation is that we considered...