Replacement of semi-natural cover with artificial substrates in urban parks causes a decline of house sparrows Passer domesticus in Mediterranean towns

Urban Ecosystems - Many European towns and cities have undergone reurbanisation processes in recent decades. However, their effects on urban biodiversity have been poorly studied. Currently...     

Kidnap risks and migration: evidence from Colombia

Using a unique data set from the major Colombian cities collected between 2000–2003 and with information on more than 12,000 households, this paper studies the relationship between the kidnap risk a household faces with its migration decisions. We find evidence that exposure to such risk induces households to react sending some of their members to an international destination but not necessarily to a domestic one. Estimates are robust to the inclusion of several household characteristics usual in the migration literature, other crime risks, reported feelings of insecurity of the household, and an alternative measure of kidnap risk.     

On the Transgressiveness of Ambiguity: Richard Bruce Nugent and the Flow of Sexuality and Race

The study focuses on the slender corpus of literary work by Harlem Renaissance poet, author and visual artist Richard Bruce Nugent (1906–1987), arguably America’s foremost Black aesthete. As an individualist in the footsteps of post-Hegelian and pre-Nietzschean philosopher Max Stirner (1806–1856), Nugent sought to re-think sexuality and race beyond fixed schemes of categorial distribution. To this end, Nugent deployed a strategy of sexual and racial ambiguity that aimed at situating the uniquely sexed and raced individual within the continuities of ever-diversifying Nature. Nugent’s deconstructive approach of sexuality and race proves to be convergent with (but not genealogically dependent on) the universalization of sexual intermediariness and racial miscegenation postulated by German-Jewish sexologist Magnus Hirschfeld during the first third of the twentieth century. Nugent’s non-identitarian conception of sex acts anticipated by more than a decade comparable insights propounded by Alfred Kinsey.     

A nonparametric test of symmetry based on the overlapping coefficient

In this paper, we introduce a new nonparametric test of symmetry based on the empirical overlap coefficient using kernel density estimation. Our investigation reveals that the new test is more powerful than the runs test of symmetry proposed by McWilliams [31]. Intensive simulation is conducted to examine the power of the proposed test. Data from a level I Trauma center are used to illustrate the procedures developed in this paper.     

Data and Model Management in a Generalized MCDM-DSS*

Drawing upon the choice models developed in the multiple criteria decision making (MCDM) area, this paper proposes an architecture for designing an intelligent decision support system (DSS) that is intended to aid in making choices among multiple alternatives along multiple dimensions. It argues that effective support can be provided to the decision maker when the knowledge-based DSS is capable of dynamically selecting choice models appropriate to the domain and context of a particular problem being specified by the decision maker, and of properly applying them to the problem solution. Development of a prototype intended to partially represent application of the architecture is described. The paper concludes with suggestions for research extensions.     

Incorporating Neighborhood Choice in a Model of Neighborhood Effects on Income

Studies of neighborhood effects often attempt to identify causal effects of neighborhood characteristics on individual outcomes, such as income, education, employment, and health. However, selection looms large in this line of research, and it has been argued that estimates of neighborhood effects are biased because people nonrandomly select into neighborhoods based on their preferences, income, and the availability of alternative housing. We propose a two-step framework to disentangle selection processes in the relationship between neighborhood deprivation and earnings. We model neighborhood selection using a conditional logit model, from which we derive correction terms. Driven by the recognition that most households prefer certain types of neighborhoods rather than specific areas, we employ a principle components analysis to reduce these terms into eight correction components. We use these to adjust parameter estimates from a model of subsequent neighborhood effects on individual income for the unequal probability that a household chooses to live in a particular type of neighborhood. We apply this technique to administrative data from the Netherlands. After we adjust for the differential sorting of households into certain types of neighborhoods, the effect of neighborhood income on individual income diminishes but remains significant. These results further emphasize that researchers need to be attuned to the role of selection bias when assessing the role of neighborhood effects on individual outcomes. Perhaps more importantly, the persistent effect of neighborhood deprivation on subsequent earnings suggests that neighborhood effects reflect more than the shared characteristics of neighborhood residents: place of residence partially determines economic well-being.     

“She invited other people to that space”: audience habitus,place, and social justice in Beyoncé’s Lemonade

We argue that place offers an effective framework for connecting popular culture with social justice narratives by exploring audience interpretations of Lemonade in 2016’s tumultuous racial climate. Working from interviews with 35 of Lemonade’s listeners/viewers regarding their understanding of the album, we argue that audience members used Lemonade to plot spaces of racial pride, community, and equality. Supporting previous audience studies’ findings, Beyoncé’s audiences engaged actively with the text and explored the complex symbolism through interpretive communities, but the audiences we spoke with also transcended these spaces. Using Lemonade as a tool to understand and reimagine historical social movements, audiences deployed the album to cultivate an anti-racist habitus in attempts to make their worlds more just.     

Supervisors in ergonomic change of meat cutting work

Being a supervisor is an important and lonely occupation. The aim of this study was to identify barriers and opportunities in working conditions for supervisors, being facilitators and implementers of change for meat cutters. Nine supervisors of meat cutters in one large company were interviewed. The semi-structured interviews covered their roles as supervisors, performance of the change process and their own working conditions. Notes were taken and structured in themes. Similarities, differences, plus and minus were identified. There was a nuanced view on the change processes and their effects. The change processes and the decisions were anchored in a democratic process with groups of employees and the union. All were clear on what demands the company had on them. They were secure in a functioning network of peers and their immediate superior. On their own education, most were as a whole satisfied, but in need of more training and talked of lifelong learning. They considered their work demanding and lonely, with a need both to be manager and leader. A shared leadership could mean doing a better job. There is a need for education and training as a manager and leader as well as the opportunity to discuss with peers.     

Behavioral and Electrophysiological Indices of Memory in Typically Developing and Hypoxic‐Ischemic Injured Infants

Behavioral and electrophysiological indices of memory were examined in 12‐month‐old typically developing control infants (CON) and infants with history of perinatal hypoxic‐ischemic injury (HII) across 2 days. Using a visual paired comparison (VPC) procedure, novelty preference was tested immediately after a familiarization period and then after delays of 2 min and 24 h. Both groups showed a significant novelty preference only for the no‐delay condition. On day two, event‐related potentials (ERPs) were recorded while infants viewed the VPC familiar face, a more recently familiarized face, and a novel face, and mean amplitude for components thought to reflect memory (positive slow wave, PSW) and attention (negative central, Nc) were computed. In temporal regions, HII showed a diminished Nc and enhanced PSW to the recently familiarized face, while CON showed a similar trend for the PSW only. Overall, infants showed the largest PSW over left scalp regions. Finally, a positive correlation between VPC novelty preference after 24 h and PSW was found in CON, and preliminary results suggest that this association differs as a function of group. Therefore, in comparison with CON, HII showed both similarities and differences on individual tasks of memory as well as potentially disparate relations between the behavioral and neural mechanisms underlying memory performance.