"帝"的甲骨字形

文章分析"帝"与"(礻帝)"的甲骨字形的发展与其异体字。经分析,甲骨文"帝"(■)字有三个部分:(1)"■"可以理解为木匠用来画方形的一种工具(巨),它与四方有关;(2)"木"指位于地心的通天树;(3)上部的一条或两条横线表示"上",即天的意思。甲骨文"(礻帝)"字的异体常表现在(1)部分。商代(礻帝)的祭祀也和后来文献的祭祀不一样。     

A Heuristic Risk Assessment Technique for Birdstrike Management at Airports

Collisions between birds and aircraft (birdstrikes) have caused the loss of at least 88 aircraft and 243 lives in world civil aviation. Conservative estimates suggest that more routine damage and delays following birdstrikes cost the industry and its insurers US$1.2-1.5 billion per year. The majority of strikes happen close to airports and most countries have regulations that require airport managers to control the birdstrike risk on their property. Birdstrike prevention has, however, lagged behind other aspects of flight safety in the development and implementation of risk assessment protocols, possibly because of the inherent difficulty in quantifying the variability in the populations and behavior of the various bird species involved. This article presents a technique that uses both national and airport-specific data to evaluate risk by creating a simple probability-times-severity matrix. It uses the frequency of strikes reported for different bird species at a given airport over the preceding five years as a measure of strike probability, and the proportion of strikes with each species that result in damage to aircraft, in the national birdstrike database, as a measure of likely severity. Action thresholds for risk levels for particular bird species are then defined, above which the airport should take action to reduce the risk further. The assessment is designed for airports where the reporting and collation of birdstrike events is reasonably consistent over time and where a bird hazard management program of some sort is already in place. This risk assessment is designed to measure risk to the airport as a business rather than risk to the traveling passenger individually. It therefore takes no account of aircraft movement rate in the calculations and is aimed at minimizing the number of damaging incidents rather than concentrating on catastrophic events. Once set up at an airport, the technique is simple to implement for nonexperts, and it allows managers to focus bird control resources on the species causing the greatest risk, hence maximizing the return on investment. This protocol is now being successfully used at major airports in the United Kingdom and elsewhere in the world.     

Refugee life,refugee space: Ankara as a bottom-up alternative

During research conducted in the summer of 2020, I observed the advanced marginality of the refugees in Ankara, Turkey. While some authors have examined this precarity, and some others have examined how refugees have begun to live in a spatially distinct section of certain cities, the combination of these two phenomena demands further investigation. If the underpinning truly is spatial as claimed by Lefebvre (The production of space. Oxford and Cambridge: Blackwell, 1991), then the precarious subject and the precarious space co-produce each other. What this paper intends to do is to combine space and precarity using the observations of Wacquant (Urban poverty and the underclass: a reader. Oxford and Cambridge: Blackwell, 1996, Urban Studies, 2016, 53, 1077) in his various analyses on the ghetto in France and the United States. In Wacquant's work, we can begin to see a spatial conception of precarity, and we can further extend this to the point that as space is a production and its subjects are also a co-constitution of that space. Nevertheless, Sampson (Ethnic & Racial Studies, 2014, 37, 1732) points out a certain state centrism in Wacquant's analysis. Building upon this, as well as the work of Roy (International Journal of Urban and Regional Research, 2011, 35, 223 and Territories of poverty: rethinking north and south. Athens: University of Georgia Press, 2015), we can offer the refugee neighbourhood in Ankara as an example of “bottom-up” agency, alternative to Wacquant's original state-centric analysis. In the course of this paper, this possibility of a “bottom-up” refugee solidarity and related refugee space will be analysed.