8,139 research outputs found
Overlay journals, repositories and the evolution of scholarly communication
This paper examines the part overlay journals can play in developing new roles for repositories in the
scholarly communication process. This requires that we answer some outstanding questions about
the overlay journal model:
¡ How are overlay journals distinct from other overlay services and other journals?
¡ What business models are applicable?
¡ What opportunities do overlay journals offer to repositories?
And, perhaps most importantly:
¡ What value can an overlay journal bring to the process of scholarly communication?
As a result of the answer to the first of these questions, this paper gives a definition of an overlay
journal as an entity that performs all the activities of a scholarly journal and relies on structural links
with one or more archives or repositories to perform its activities. It finds that the overlay journals
that already exist use a variety of business models, which means that repositories can engage with
overlay journals in many different ways. Research and practice show that overlay journals offer new
possibilities for publishers, repositories, authors and readers alike, and as such have a great deal to
offer to scholarly communication
'Taking it to heart': girls and the meanings of violence
No abstract available
Researching girls and violence: facing the dilemmas of fieldwork
This paper explores key methodological and analytical issues encountered in an exploratory study of teenage girls' views and experiences of violence, carried out in Scotland. Researching the ways in which girls conceptualize, experience and use violence raises a number of dilemmas due in part to the sensitive nature of the research topic, and the age and gender of those taking part. Drawing on feminist debates about objectivity, the role of the researcher, power relationships in the production of knowledge, and representation, this article highlights the difficulties of adapting such principles to the day-to-day practicalities of conducting empirical research on girls and violence. It shows how the research itself has been enhanced by having to engage with and work through this complexity
The vertical capacity of grillage foundations
Grillage foundations may provide an economical alternative to offshore âmudmat' foundations for seabed infrastructure, owing to their improved hydrodynamic characteristics, which are important during installation. Grillage foundations consist of a mesh of vertical grilles that penetrate the seabed during loading. Offshore loadings on these types of foundation are likely to consist of vertical (mostly dead weight) loading and horizontal âin-service' loads. However, to date there is no accepted method of design, as foundation capacity may differ significantly from that of conventional solid shallow foundations. This paper presents an analytical method designed to calculate the variation of vertical bearing capacity with grille penetration in sand. The results show that grillages are able to achieve the same capacity as solid foundations of the same breadth, but this requires significant penetration of the grillage. Consequently, design choices are likely to depend on the amount of settlement the structure can tolerate. Simplified analytical equations have been presented to allow calculation of the loadâsettlement response, and to calculate how much settlement is required to mobilise the flat-plate capacity of a solid mudmat of the same overall breadth. The methodology has been validated by comparing results with those from model tests. </jats:p
Metaphorical language in relation to baptism in the Pauline literature
SIGLEAvailable from British Library Document Supply Centre- DSC:D44308/83 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
Leprosy and childhood
A CAJM article on leprosy and childhood in 1950's Africa.Disabilities in young people stir the emotions easily. There is an immediate response to children who cannot see or who have been crippled by accident or disease. Expressions such as âstricken,â âhandicapped for lifeâ and âunable to join in the games of other childrenâ are a measure of the sympathy that is awakened âa feeling, however, that does not necessarily follow them as easily as they get older, when the consequences of their limitations may be greater. It is, therefore, not difficult to regard disease in children as essentially different from that in adults. Certain conditions one expects to see predominantly in children just as others appear only in the more elderly. When considering those diseases that are common to all ages we ought to be certain that our emotional regard for the child is not causing us to put into separate houses what really belong to the same room
Production of light pseudoscalars in external electromagnetic fields by the Schwinger mechanism
We generalize the Schwinger mechanism and calculate the probability of the
decay of intense electromagnetic fields to pseudoscalar particles. We also
point out that our estimate for axion emission in a previous paper was
incorrect.Comment: 25 pages including 9 figures. Version that matches published versio
Habitat Modeling of Alien Plant Species at Varying Levels of Occupancy
Distribution models of invasive plants are very useful tools for conservation
management. There are challenges in modeling expanding populations, especially in a
dynamic environment, and when data are limited. In this paper, predictive habitat models
were assessed for three invasive plant species, at differing levels of occurrence, using two
different habitat modeling techniques: logistic regression and maximum entropy. The
influence of disturbance, spatial and temporal heterogeneity, and other landscape
characteristics is assessed by creating regional level models based on occurrence records from the USDA Forest Serviceâs Forest Inventory and Analysis database. Logistic
regression and maximum entropy models were assessed independently. Ensemble models
were developed to combine the predictions of the two analysis approaches to obtain a more
robust prediction estimate. All species had strong models with Area Under the receiver
operator Curve (AUC) of >0.75. The species with the highest occurrence, Ligustrum spp.,
had the greatest agreement between the models (93%). Lolium arundinaceum had the most disagreement between models at 33% and the lowest AUC values. Overall, the strength of
integrative modeling in assessing and understanding habitat modeling was demonstrated
Symmetries, Horizons, and Black Hole Entropy
Black holes behave as thermodynamic systems, and a central task of any
quantum theory of gravity is to explain these thermal properties. A statistical
mechanical description of black hole entropy once seemed remote, but today we
suffer an embarrassment of riches: despite counting very different states, many
inequivalent approaches to quantum gravity obtain identical results. Such
``universality'' may reflect an underlying two-dimensional conformal symmetry
near the horizon, which can be powerful enough to control the thermal
characteristics independent of other details of the theory. This picture
suggests an elegant description of the relevant degrees of freedom as
Goldstone-boson-like excitations arising from symmetry breaking by the
conformal anomaly.Comment: 6 pages; first prize essay, 2007 Gravity Research Foundation essay
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