The Environmental Impact of Immigration: An Analysis of the Effects of Immigrant Concentration on Air Pollution Levels

Despite growing interest in the impact of immigration on U.S. society, research has rarely examined the effects of immigration flows on the natural environment. The current study addresses this gap in research using data on 183 Metropolitan Statistical Areas drawn from the Environmental Protection Agency, the U.S. Census Bureau, and the National Oceanic and Atmospheric Administration to empirically assess the relationships between contemporary immigration and seven measures of air pollution. In doing so, we seek to (1) broaden knowledge about the social consequences of immigration to include its potential effects on the environment, (2) address competing theoretical perspectives about immigration-environment relationships (i.e., population pressure/social disorganization versus ecological footprint/community resource perspectives), and (3) extend knowledge about the predictors and sources of environmental harm within local communities. In contrast to popular opinion and population pressure positions, our research indicates that immigration does not contribute to local air pollution levels across any of the seven pollution measures examined.     

中国地区能效分布函数与标杆研究

基于1999-2008年中国能源经济统计数据,研究验证了中国地区能效分布的正态性以及地理因素和经济发展因素对地区能效的显著影响,对中国各省区进行分类,计算得到中国地区能效分布函数以及中国地区能效标杆,并以北京为案例进行了初步的能效诊断.     

An Approach to Constructing Nested Space-Filling Designs for Multi-Fidelity Computer Experiments

Multi-fidelity computer experiments are widely used in many engineering and scientific fields. Nested space-filling designs (NSFDs) are suitable for conducting such experiments. Two classes of NSFDs are currently available. One class is based on special orthogonal arrays of strength two and the other consists of nested Latin hypercube designs. Both of them assume all factors are continuous. We propose an approach to constructing new NSFDs based on powerful (t, s)-sequences. The method is simple, easy to implement, and quite general. For continuous factors, this approach produces NSFDs with better space-filling properties than existing ones. Unlike the previous methods, this method can also construct NSFDs for categorical and mixed factors. Some illustrative examples are given. Other applications of the constructed designs are briefly discussed.     

闻一多的《庄子》研究

从闻一多的学术经历来看 ,《庄子》实为其研究的重要内容。他不但在论文中、在教学活动中对《庄子》的文学性、哲学性给予独到而深刻的评价 ,而且从校释的角度对《庄子》中许多篇章进行了深入分析。因为对《庄子》的重视及热爱 ,他的文学创作也受到《庄子》较大影响。在特定的文化背景下 ,他对庄子的态度也有复杂的一面。闻一多的《庄子》研究具有丰富内涵 ,值得我们认真品味和探索。     

Global value chains for medical gloves during the COVID-19 pandemic: Confronting forced labour through public procurement and crisis

This paper evaluates ways in which labour issues in global value chains for medical gloves have been affected by, and addressed through, the COVID-19 pandemic. It focuses on production in Malaysia and supply to the United Kingdom's National Health Service and draws on a large-scale survey with workers and interviews with UK government officials, suppliers and buyers. Adopting a Global Value Chain (GVC) framework, the paper shows how forced labour endemic in the sector was exacerbated during the pandemic in the context of increased demand for gloves. Attempts at remediation are shown to operate through both a reconfigured value chain in which power shifted dramatically to the manufacturers and a context where public procurement became higher in profile than ever before. It is argued that the purchasing power of governments must be leveraged in ways that more meaningfully address labour issues, and that this must be part of value chain resilience.     

Global networks of money and information at the crossroads: Correspondent banking and SWIFT

This article explores how transaction information is a fundamental element enabling and fostering global flows of money. Financial systems, constructed around account-based money, require infrastructure, which is separated into two parts: messaging and settlement, performed via trusted agents. This separation has allowed the geographical expansion of banking, and to this day constitutes a key architecture of increasingly global networks of money. Focusing on the correspondent banking system and the Society for Worldwide Interbank Financial Telecommunication, this article demonstrates the workings of this infrastructure in cross-border payments and in enacting economic sanctions. This sociotechnical infrastructure is a crucial yet overlooked area of global banking, which makes global economic and financial activity possible in the first place. Importantly, by analysing the organizational architecture of the global payments system and including the actors and agencies within it, we elucidate the (changing) relationships between data/information, geographies and power, contributing to the formation of a literature that conceptualizes financial infrastructure.     

The United Nations Convention on the Rights of the Child: Its Relevance for Adolescents

The United Nations Convention on the Rights of the Child (CRC, United Nations General Assembly, 1989) is a transformative document which has already improved the lives of millions of young people worldwide. Ratified into law by the majority of the countries of the world, it is the first human rights treaty focusing specifically on the rights of individuals under 18 years of age. The rights described in the treaty, however, are often seen as more important for younger children than for adolescents. This policy statement reviews the germane research on the period of adolescence and affirms that the protections and entitlements in the CRC are as important for adolescents as for younger children. Recommendations for policy and research are included.     

Genetic variants in ATP6 and ND3 mitochondrial genes are not associated with aggressive prostate cancer in Mexican–Mestizo men with overweight or obesity

Mitochondrial defects have been related to obesity and prostate cancer. We investigated if Mexican–Mestizo men presenting this type of cancer, exhibited somatic mutations of ATP6 and/or ND3.Body mass index (BMI) was determined; the degree of prostate cancer aggressiveness was demarcated by the Gleason score. DNA from tumor tissue and from blood leukocytes was amplified by the polymerase chain reaction and ATP6 and ND3 were sequenced. We included 77 men: 20 had normal BMI, 38 were overweight and 19 had obesity; ages ranged from 52 to 83. After sequencing ATP6 and ND3, from DNA obtained from leukocytes and tumor tissue, we did not find any somatic mutations. All changes observed, in both genes, were polymorphisms. In ATP6 we identified, in six patients, two non-synonymous nucleotide changes and in ND3 we observed that twelve patients presented non-synonymous polymorphisms. To our knowledge, this constitutes the first report where the complete sequences of the ATP6 and ND3 have been analyzed in Mexican–Mestizo men with prostate cancer and diverse BMI. Our results differ with those reported in Caucasian populations, possibly due to ethnic differences.     

Mental illness, supported education, employment and recovery: Ben's story

Supported education programs aim to facilitate the successful return to higher education for people living with mental illness who may have experienced educational interruptions due to their illness. This article shares the story of Ben who lives with mental illness and his experience of participating in an Australian supported education course. The two authors draw on a qualitative life history approach as they reflected on Ben's experiences of mental illness, educational disruption and returning to education and employment. The losses associated with educational disruption and the positive and empowering experience of becoming a student again are described as positively impacting recovery. Ben's story is shared in anticipation that other people living with mental illness, their family and carers, or workers supporting those people, may draw from his determination and success, in their own journeys of recovery.