6,373 research outputs found
Researching trust in the police and trust in justice: a UK perspective
This paper describes the immediate and more distant origins of a programme of comparative research that is examining cross-national variations in public trust in justice and in the police. The programme is built around a module of the fifth European Social Survey, and evolved from a study funded by the European Commission. The paper describes the conceptual framework within which we are operating â developed in large measure from theories of procedural justice. It reviews some of the methodological issues raised by the use of sample surveys to research issues of public trust in the police, public perceptions of institutional legitimacy and compliance with the law. Finally it gives a flavour of some of the early findings emerging from the programme
Tackling Anti-Social Behaviour: A Critical Review
Over the past decade, anti-social behaviour (henceforth referred to as ASB) has
become a focus of much policy-making and debate within central and local
government and the police. Clear definitions of ASB are lacking, but the term is
usually understood to refer to relatively minor criminal activity and non-criminal
ânuisanceâ behaviour that affects the social and/or physical environment of public or
semi-public places. The term ASB is frequently used synonymously with âdisorderâ,
and is sometimes associated with the concept of âincivilitiesâ.
Policy-makers and strategists, at national and local levels alike, reiterate that
problems of ASB can have a massively detrimental effect on neighbourhoods as a
whole, and on the lives of individuals. Hence strenuous and wide-ranging efforts are
being made to support, develop and implement schemes for tackling ASB â involving
a variety of enforcement and preventive measures
Violent protest at local government level in South Africa: Revolutionary potential?
In this article, a broad overview of the main causes and theories of revolution
is presented. The objective is to obtain, by analysing recent events in South Africa pertaining to the ongoing protest actions over service delivery at local government level, some indication of revolutionary potential in South Africa. In this regard, there seem to be two basic views, namely on the one hand, that violent protest action at local level can lead to revolutionary activity, and on the other hand, that the protest can be contained but aspects of policy will have to be adapted. Scientia Militaria: South African Journal of Military Studies Vol. 36 (1) 2008: pp. 1-1
A two micron polarization survey toward dark clouds
A near infrared (2.2 micron) polarization survey of about 190 sources was conducted toward nearby dark clouds. The sample includes both background field stars and embedded young stellar objects. The aim is to determine the magnetic field structure in the densest regions of the dark clouds and study the role of magnetic fields in various phases of star formation processes, and to study the grain alignment efficiency in the dark cloud cores. From the polarization of background field stars and intrinsically unpolarized embedded sources, the magnetic field structure was determined in these clouds. From the intrinsic polarization of young stellar objects, the spatial distribution was determined of circumstellar dust around young stars. Combining the perpendicularity between the disks and magnetic fields with perpendicularity between the cloud elongation and magnetic fields, it is concluded that the magnetic fields might have dominated nearly all aspects of cloud dynamics, from the initial collapse of the clouds right through to the formation of disks/tori around young stars in these low to intermediate mass star forming clouds of the Taurus, Ophiuchus, and Perseus
Spatial memory is impaired by peripubertal GnRH agonist treatment and testosterone replacement in sheep
Chronic gonadotropin-releasing hormone agonist (GnRHa) is used therapeutically to block activity within the reproductive axis through down-regulation of GnRH receptors within the pituitary gland. GnRH receptors are also expressed in non-reproductive tissues, including areas of the brain such as the hippocampus and amygdala. The impact of long-term GnRHa-treatment on hippocampus-dependent cognitive functions, such as spatial orientation, learning and memory, is not well studied, particularly when treatment encompasses a critical window of development such as puberty. The current study used an ovine model to assess spatial maze performance and memory of rams that were untreated (Controls), had both GnRH and testosterone signaling blocked (GnRHa-treated), or specifically had GnRH signaling blocked (GnRHa-treated with testosterone replacement) during the peripubertal period (8, 27 and 41 weeks of age). The results demonstrate that emotional reactivity during spatial tasks was compromised by the blockade of gonadal steroid signaling, as seen by the restorative effects of testosterone replacement, while traverse times remained unchanged during assessment of spatial orientation and learning. The blockade of GnRH signaling alone was associated with impaired retention of long-term spatial memory and this effect was not restored with the replacement of testosterone signaling. These results indicate that GnRH signaling is involved in the retention and recollection of spatial information, potentially via alterations to spatial reference memory, and that therapeutic medical treatments using chronic GnRHa may have effects on this aspect of cognitive function
A Simple Analytical Model of Evaporation in the Presence of Roots
Root systems can influence the dynamics of evapotranspiration of water out of
a porous medium. The coupling of evapotranspiration remains a key aspect
affecting overall root behavior. Predicting the evapotranspiration curve in the
presence of roots helps keep track of the amount of water that remains in the
porous medium. Using a controlled visual set-up of a 2D model soil system
consisting of monodisperse glass beads, we first perform experiments on actual
roots grown in partially saturated systems under different relative humidity
conditions. We record parameters such as the total mass loss in the medium and
the resulting position of the receding fronts and use these experimental
results to develop a simple analytical model that predicts the position of the
evaporating front as a function of time as well as the total amount of water
that is lost from the medium due to the combined effects of evaporation and
transpiration. The model is based on fundamental principles of evaporation flux
and includes empirical assumptions on the quantity of stoma in the leaves and
the transition time between regime 1 and regime 2. The model also underscores
the importance of a much prolonged root life as long as the root is exposed to
a partially saturated zone composed of a mixture of air and water. Comparison
between the model and experimental results shows good prediction of the
position of the evaporating front as well as the total mass loss from
evapotranspiration in the presence of real root systems. These results provide
additional understanding of both complex evaporation phenomenon and its
influence on root mechanisms.Comment: 10 pages, 6 figure
A reduction in long-term spatial memory persists after discontinuation of peripubertal GnRH agonist treatment in sheep
Chronic gonadotropin-releasing hormone agonist (GnRHa) administration is used where suppression of hypothalamic-pituitary-gonadal axis activity is beneficial, such as steroid-dependent cancers, early onset gender dysphoria, central precocious puberty and as a reversible contraceptive in veterinary medicine. GnRH receptors, however, are expressed outside the reproductive axis, e.g. brain areas such as the hippocampus which is crucial for learning and memory processes. Previous work, using an ovine model, has demonstrated that long-term spatial memory is reduced in adult rams (45 weeks of age), following peripubertal blockade of GnRH signaling (GnRHa: goserelin acetate), and this was independent of the associated loss of gonadal steroid signaling. The current study investigated whether this effect is reversed after discontinuation of GnRHa-treatment. The results demonstrate that peripubertal GnRHa-treatment suppressed reproductive function in rams, which was restored after cessation of GnRHa-treatment at 44 weeks of age, as indicated by similar testes size (relative to body weight) in both GnRHa-Recovery and Control rams at 81 weeks of age. Rams in which GnRHa-treatment was discontinued (GnRHa-Recovery) had comparable spatial maze traverse times to Controls, during spatial orientation and learning assessments at 85 and 99 weeks of age. Former GnRHa-treatment altered how quickly the rams progressed beyond a specific point in the spatial maze at 83 and 99 weeks of age, and the direction of this effect depended on gonadal steroid exposure, i.e. GnRHa-Recovery rams progressed quicker during breeding season and slower during non-breeding season, compared to Controls. The long-term spatial memory performance of GnRHa-Recovery rams remained reduced (P < 0.05, 1.5-fold slower) after discontinuation of GnRHa, compared to Controls. This result suggests that the time at which puberty normally occurs may represent a critical period of hippocampal plasticity. Perturbing normal hippocampal formation in this peripubertal period may also have long lasting effects on other brain areas and aspects of cognitive function
Recommended from our members
Information and punitiveness: trial reconstruction in Ireland
Purpose of this paper: to report results from a rape trial reconstruction in Ireland
Design/methodology/approach: A studio audience of 100 members of the Irish public were selected to attend a TV programme by the Republic of Irelandâs national broadcasting organisation (RTĂ). This involved the examination of the sentencing of a rape case. The audienceâs sentencing preferences were measured at the outset, when they had been given only summary information about the case, and later, when full details had been disclosed.
Findings: Previous research examining changes in public attitudes to crime and punishment has shown that deliberation, including the provision of new information and discussion with others and experts, tends to decrease public punitiveness and increase public leniency towards sentencing. An experiment in Ireland, however, showed that providing information does not invariably and necessarily moderate punitive attitudes. This article presents the results, and offers some explanations for the anomalous outcome.
Research limitations: The pre/post design, in which the audience served as their own controls, is a weak one, and participants may have responded to what they took to be the agenda of the producers.
- Due to the quality of the sample, the results may not be generalizable to the broader Irish population.
Practical implications:
- Policy makers should recognise that the public is not uniformly punitive for all crimes. There is good research evidence to show that the apparent public appetite for tough punishment is illusory, and is a function of the way that polls measure public attitudes to punishment.
- However the âinformation hypothesisâ is too often stated in overly simple terms, that fuller and more accurate information about specific cases necessarily moderates public punitiveness.
- The experiment presented here serves as a counter-example, showing that a sample of the public failed to moderate their views when given fuller information about a rape case involving serious violence and a vulnerable victim.
- Sentencers and those responsible for sentencing policy would benefit from a fuller understanding of the sorts of cases which illicit strong punitive responses from the public, and the reasons for this response.
- However any such understanding should not simply translate into responsiveness to the publicâs punitive sentiments â where these exist.
What is original/value of paper: There have been limited research studies which reports factors which may increase punitiveness through the provision of information and deliberation
- âŠ