A dynamic model of regional population growth and decline

"This paper presents a two-sector dynamic model of regional population change. The model contains a migration equation, an earnings equation, and an amenity equation for each region. In the context of this model, migration is seen as a disequilibrium process through which the regional populations move towards equilibrium positions. Migration occurs when one region is perceived to be superior to the other on the basis of its earnings and amenity levels. Equilibrium is achieved when population movements between the regions eliminate any differences in their relative attractiveness. A comparative-static analysis of the model is presented to analyze the effects of policy changes and exogenous shocks on the distribution of population among the regions." The geographical focus is on the United States.     

A Postcolonial Critique of Community Energy: Searching for Community as Solidarity in India and Scotland

Community renewable energy (CRE) represents a growing empirical and academic turn towards community‐based sustainability and climate change interventions. This paper brings together postcolonial theory and CRE for the first time to outline fundamental tensions in the conceptualisation and application of the idea of community. The understanding of community within the CRE discourse is largely: (1) location‐based; and/or (2) a community of choice that is consciously opted into. Driven by postcolonial theory, this paper counterpoises both as a form of community as contract against an idea of community as solidarity. Its central thesis is that actually existing community, contrary to how the bulk of CRE literature commonly understands it, is a combination of bonds of solidarity and emergent purposes. The paper conceptualises community as fluid bonds of solidarity that align and realign differently around different purposes.     

Investigating self-reported food allergy prevalence in Waterloo Region,Canada

While food allergy prevalence has been studied at the national level, we know little of food allergy prevalence or perceptions of prevalence/management at the local level. This paper uses Waterloo Region as a case study to 1) document self-reported individual and household food allergy and sensitivity prevalence at the local level; 2) investigate perceptions of food allergy prevalence; and 3) explore perceived confidence in anaphylaxis management. Survey data were collected from January to March 2019. Respondents (n = 500) self-reported individual and household food allergy and sensitivity, estimated the percentage of Canadians with food allergy, and were queried about their knowledge of food allergy management. Prevalence estimates were weighted to the structure of the 2016 Canadian Census, and univariate and bivariate analysis were conducted. Prevalence of self-reported food allergy was 12.1% (95%CI, 8.8%-15.3%), and prevalence of self-reported food sensitivity was 26.3% (95%CI, 21.9%-30.7%). When asked to estimate the percentage of Canadians with food allergy, the mean perceived percentage was 35.1% (SD = 22.96). Self-reported prevalence of food allergy appears higher in Waterloo Region, and the estimated percentage of Canadians with food allergy is inflated. Understanding prevalence and perceptions at the local level is important for targeted allocation of public health resources to ensure safe spaces for individuals with food allergy.     

Auguries of Hegemony: The Sex Omens of Mesopotamia

Ancient Mesopotamian scholars examined problematic aspects of male erotic desire within the discourse of divination. They documented an array of sexual acts, reading each as an omen, a sign signifying an aspect of the future. Guinan shows that the omens are informed by a coherent perspective and, in general, are concerned with the impact of erotic desire on notions of male identity and expectations of gender hierarchy. The omens oppose masculine hegemony and male/female eroticism in such a way that the denial of one is the assertion of the other. In these omens, masculine power and agency are both expressed and preserved by the disavowal of erotic interactions with women.     

故宫藏乾隆朝漆纱隔心工艺探究

故宫乾隆花园符望阁一层明间南向宝座的栏杆罩镶嵌着一组精美绝伦貌如金纱窗的漆纱隔心。类似的隔扇装修不仅在故宫,甚至全国范围内也是独一无二的。符望阁保护修复过程中,发现漆纱隔心存在损毁严重、工艺失传、复制难度大等问题。为对该组漆纱进行研究,运用剖面显微分析、扫描电镜与能谱仪分析、显微红外光谱及多种色谱-质谱联用等实验室科技手段,明确了漆纱由内而外"织物纱芯-双面贴纸样-双面上漆贴金-双面纸样上施绘"四层基本结构关系,以及单侧14个亚层所用的无机、有机材料,为漆纱的保护和复制提供了科学依据。