7,509 research outputs found
Prison as Seen by Convict Criminologists
Most criminologists tend to base their view of prison on ideological assumptions gathered from secondary sources, with at best limited entry to the prison world. They nearly always get it wrong, as they systematically exclude the perspectives and real life experiences of their human subjects. These academic researchers have contributed to poor public policy that promotes the violent repression of prisoners in the USA and other countries. In response, Convict Criminologists are exâconvicts working as criminology and criminal justice professors, along with ânonâconâ associates, that insist that as a means for societies to develop humane, effective, and cost efficient prisons, we must develop ways to incorporate the voice of prisoners in our theorizing about, policy recommendations for, and management of the prison
U.S. and U.K. Interest Rates 1890 - 1934: New Evidence on Structural Breaks
This paper presents econometric evidence on whether the founding of the Federal Reserve in 1914 caused a structural change from level-stationarity to difference-stationarity in U.S. and U.K. short-term nominal interest rates. We develop new econometric tests that allow for parameter transitions to test for a break of this kind and undertake a grid search analysis of dates and speeds for the change. We find that U.S. nominal interest rates most likely evolved rapidly to difference-stationarity in June 1917. For the U.K. we fail to reject the null that U.K. interest rate series follow a difference stationary process over the entire period 1890-1934. Our analysis differs from previous research on this topic in that we take care to explore statistical uncertainty around parameter estimates, and incorporate higher order dynamics into our econometric analysis.
Prison Research from the Inside: The Role of Convict Autoethnography
A perspective that has often been absent in criminal justice research is that of former prisoners. This article discusses the establishment, in 1997, of âconvict criminology,â a group of scholars producing research informed by their experiences of crime and the criminal justice process; that is, either those who have served time themselves or who have operated alongside prisoners as professionals in custodial settings. It is argued that such scholars face similar dilemmas to others in terms of emotionalism, but suggests that their emotions are of a different nature. While an âinsiderâ perspective cannot lay claim to scientific âobjectivity,â the article argues that the existence of emotion does not invalidate an âinsiderâ criminologistâs views. Rather, the passion engendered by the experience of incarceration can add color, context, and contour to data collection, findings, and analysis and may therefore be regarded as an essential thread in the tapestry of criminological inquiry
New approaches for estimating risk from exposure to diethylstilbestrol.
A subgroup from a National Institute of Environmental Health Sciences, workshop concerned with characterizing the effects of endocrine disruptors on human health at environmental exposure levels considered the question, If diethylstilbestrol (DES) were introduced into the market for human use today and likely to result in low-dose exposure of the human fetus, what would be required to assess risk? On the basis of an analysis of the quality of data on human DES exposure, the critical times and doses for inducing genital tract malformations and cancer must be determined. This would be facilitated through analysis of the ontogeny of estrogen receptor expression in the developing human genital tract. Models of low-dose estrogenic effects will have to be developed for human and rodent genital tract development. Mouse models offer many advantages over other potential animal models because of the wealth of the earlier literature, the availability of sensitive end points, the availability of mutant lines, and the possibility of generating genetically engineered model systems. Through multidisciplinary approaches, it should be possible to elucidate the cellular and molecular mechanisms of endocrine disruption elicited by estrogens during development and facilitate an assessment of risk to humans
Comparison of bacterioneuston and bacterioplankton dynamics during a phytoplankton bloom in a fjord mesocosm
The bacterioneuston is the community of Bacteria present in surface microlayers, the
thin surface film that forms the interface between aquatic environments and the
atmosphere. In this study we compared bacterial cell abundance and bacterial
community structure of the bacterioneuston and the bacterioplankton (from the
subsurface water column) during a phytoplankton bloom mesocosm experiment.
Bacterial cell abundance, determined by flow cytometry, followed a typical
bacterioplankton response to a phytoplankton bloom, with Synechococcus and high
nucleic acid (HNA) bacterial cell numbers initially falling, probably due to selective
protist grazing. Subsequently HNA and low nucleic acid (LNA) bacterial cells
increased in abundance but Synechococcus did not. There was no significant
difference between bacterioneuston and bacterioplankton cell abundances during the
experiment. Conversely, distinct and consistent differences between the
bacterioneuston and the bacterioplankton community structure were observed. This
was monitored simultaneously by Bacteria 16S rRNA gene terminal restriction
fragment length polymorphism (T-RFLP) and denaturing gradient gel electrophoresis
(DGGE). The conserved patterns of community structure observed in all of the
mesocosms indicate that the bacterioneuston is distinctive and non-random
Trends in Competition and Profitability in the Banking Industry: A Basic Framework
This paper brings to the forefront the assumptions that we make when focusing on a particular type of explanation for bank profitability. We evaluate a broad field of research by introducing a general framework for a profit maximizing bank and demonstrate how different types of models can be fitted into this framework. Next, we present an overview of the current major trends in European banking and relate them to each modelâs assumptions, thereby shedding light on the relevance, timeliness and shelf life of the different models. This way, we arrive at a set of recommendations for a future research agenda. We advocate a more prominent role for output prices, and suggest a modification of the intermediation approach. We also suggest ways to more clearly distinguish between market power and efficiency, and explain why we need time-dependent models. Finally, we propose the application of existing models to different size classes and sub-markets. Throughout we emphasize the benefits from applying several, complementary models to overcome the identification problems that we observe in individual models.
Global gaps in trait data for terrestrial vertebrates
AIM: Trait data are increasingly being used in studies investigating the impacts of global changes on the structure and functioning of ecological communities. Despite a growing number of trait data collations for terrestrial vertebrates, there is to date no global assessment of the gaps and biases the data present. Here, we assess whether terrestrial vertebrate trait data are taxonomically, spatially and phylogenetically biased. LOCATION: Global. TIME PERIOD: Present. MAJOR TAXA STUDIED: Terrestrial vertebrates. METHODS: We compile seven ecological traits and quantify coverage as the proportion of species for which an estimate is available. For a species, we define completeness as the proportion of nonâmissing values across traits. We assess whether coverage and completeness differ across classes and examine phylogenetic biases in trait data. To investigate spatial biases, we test whether widerâranging species have more complete trait data than narrowâranging species. Additionally, we test whether speciesârich regions, which are of most concern for conservation, are less well sampled than speciesâpoor regions. RESULTS: Mammals and birds are well sampled even in speciesârich regions. For reptiles and amphibians (herptiles), only body size presents a high coverage (>80%), in addition to habitatârelated variables (amphibians). Herptiles are poorly sampled for other traits. The shortfalls are particularly acute in some speciesârich regions and for certain clades. Across all classes, geographically rarer species have less complete trait information. MAIN CONCLUSIONS: Trait information is less available on average in some of the most diverse areas and in geographically rarer species, both of which crucial for biodiversity conservation. Gaps in trait data might impede our ability to conduct largeâscale analyses, whereas biases can impact the validity of extrapolations. A shortâterm solution to the problem is to estimate missing trait data using imputation techniques, whereas a longerâterm and more robust filling of existing gaps requires continued dataâcollection efforts
The database of the PREDICTS (Projecting Responses of Ecological Diversity In Changing Terrestrial Systems) project (2017)
The PREDICTS project-Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)-has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used this evidence base to develop global and regional statistical models of how local biodiversity responds to these measures. We describe and make freely available this 2016 release of the database, containing more than 3.2 million records sampled at over 26,000 locations and representing over 47,000 species. We outline how the database can help in answering a range of questions in ecology and conservation biology. To our knowledge, this is the largest and most geographically and taxonomically representative database of spatial comparisons of biodiversity that has been collated to date; it will be useful to researchers and international efforts wishing to model and understand the global status of biodiversity
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