New bounds for locally irregular chromatic index of bipartite and subcubic graphs

A graph is locally irregular if the neighbors of every vertex v have degrees distinct from the degree of v. A locally irregular edge-coloring of a graph G is an (improper) edge-coloring such that the graph induced on the edges of any color class is locally irregular. It is conjectured that three colors suffice for a locally irregular edge-coloring. In the paper, we develop a method using which we prove four colors are enough for a locally irregular edge-coloring of any subcubic graph admiting such a coloring. We believe that our method can be further extended to prove the tight bound of three colors for such graphs. Furthermore, using a combination of existing results, we present an improvement of the bounds for bipartite graphs and general graphs, setting the best upper bounds to 7 and 220, respectively.     

The EU‐Turkey‐'deal': Legal Challenges and Pitfalls

The EU‐Turkey “deal”, based on the Joint Action Plan (JAP) between the European Union (EU) and Turkey, raises fundamental questions on the range of European asylum law as well as on the scope of the safe third country concept, which has turned out to serve as a political master key to “solve” the problems of the so‐called “refugee crisis” in Europe. This article discusses the legal possibilities of the application of the concept as well as its limitations regarding the human rights orientation of European and international law, focusing on the evolvement and legal implementation of the “Merkel Plan”. The legal analysis also focusses on recent ideas to make new “deals” with third states such as Libya. It concludes with a critical but differentiated(?) acclaim of the controversial externalizing policy approach.     

Time‐Space Distanciation: An Interdisciplinary Account of How Culture Shapes the Implicit and Explicit Psychology of Time and Space

The growing body of research on temporal and spatial experience lacks a comprehensive theoretical approach. Drawing on Giddens’ framework, we present time‐space distanciation (TSD) as a construct for theorizing the relations between culture, time, and space. TSD in a culture may be understood as the extent to which (1) time and space are abstracted as separate dimensions and (2) activities are extended and organized across time and space. After providing a historical account of its development, we outline a multi‐level conceptualization of TSD supported by research on cultural differences in the experience of time and space. We impact this conceptualization by examining two ethnographic case studies. We conclude by highlighting future research directions. TSD is an integrative, interdisciplinary, multi level construct with the potential to guide the burgeoning social science of time and space.     

Recovery and detachment between shifts, and fatigue during a twelve-hour shift

The study investigated the role of recovery and detachment in the break period between two shifts for fatigue in the current shift. A time-based paper-and-pencil diary study was carried out observing sixty-four railway controllers over ten consecutive working shifts. The results demonstrated that fatigue in the current shift was not only affected by recovery and psychological detachment during break phases before a shift, but also by fatigue at shift onset and perceived workload during the shift.     

“Unnatural Fornication” Cases Under State-Socialism: A Hungarian–Slovenian Comparative Social-Historical Approach

This comparative social-historical study examines different versions of state-socialist body politics manifested in Hungary and Slovenia mainly during the 1950s by using archive material of “unnatural fornication” court cases. By analyzing the available Hungarian “természet elleni fajtalanság” and Slovenian “nenaravno ob?evanje” court cases, we can shed light on how the defendants were treated by the police and the judiciary. On the basis of these archive data that have never been examined before from these angles, we can construct an at least partial picture of the practices and consequences of state surveillance of same-sex-attracted men during state-socialism. The article explores the functioning of state-socialist social control mechanisms directed at nonnormative sexualities that had long-lasting consequences on the social representation of homosexuality in both countries.     

Large-scale commonness is the best predictor of bird species presence in European cities

Urban Ecosystems - Urban bird communities are homogenized across large spatial scales, suggesting that the urban environment acts as an environmental filter. We hypothesize that large scale...     

Evaluating systems change in a juvenile justice reform initiative

Evaluating comprehensive, interagency initiatives to reform human services systems presents substantial challenges to traditional research models. Outcomes are observed at the system level rather than the individual level, and the validity of study results may be challenged on a variety of dimensions, particularly small sample sizes and measurement error. We report the results of a cross-site evaluation of the first phase of Reclaiming Futures, a five-year effort to improve services and interventions for justice-involved youth in 10 communities across the United States. We present the evaluation findings and discuss implications for similar research endeavors. The methods used in this study may be useful for other system-level evaluation efforts. A social network analysis analyzes changes in the size, density, and cohesiveness of stakeholder networks. Bivariate models test for associations between Reclaiming Futures implementation and key stakeholder perceptions of effective system change. Multivariate models are used to explore selection effects on item response. In general, we find positive correlations between successful implementation of Reclaiming Futures and indicators of effective and efficient system change.     

Household Saving Behavior and the Influence of Family-Owned Business

This study focused on the lifecycle income objective of business-owning (farm and nonfarm) households. We hypothesized that the complex relationship between household and business management decisions had the potential to challenge predictions from standard household savings theory. Specifically, we tested for differences in saving behavior of these entrepreneurial households relative to the average US household. A limited dependent variable model was performed, keying in on the saving behavior and ability of household respondents in the Survey of Consumer Finances for 2007. The estimation results indicated that, along with standard demographic influences of savings models, households owning a farm or nonfarm business had a significantly higher likelihood of maintaining private saving in a given year. Our results highlight the necessity for future research on household saving behavior to account for the differing objectives and choice sets faced by households that own businesses when conducting analyses of household saving.     

关于大学英语口语教学的一些认知思考

信息产业对大学英语教育显然有所冲击，而信息交流是大学英语教育的核心。从应用语言学理论我们可得出如下结论“口语习得的决定因素是语感”，针对学生在习得过程中存在的习得视窗误区，英语口语教学宜采用独有的语感训练方法，列出量化参考值。