1,990 research outputs found
At The Same Time. Essays and Speeches
No full textIn 2006 Paolo Dilonardo was chosen by the Susan Sontag Literary Estate as one of the editors of Sontag’s posthumous work. The access to Sontag private archives allowed him and Anne Jump to reconstruct form and intentions of the collection of essays Sontag was outlining in the last years of her life. Through the study of her manuscripts, Dilonardo and Jump prepared the essays for publication, restoring the original version of the pieces that were cut or edited at the time of first publication in magazines, and incorporating the corrections and edits the author made after that first publication. The result of their work is Susan Sontag, At the Same Time. Essays and Speeches, edited by Paolo Dilonardo and Anne Jump. Foreword by David Rieff, published first in the United States then in the U.K. The collection of essays edited by Dilonardo and Jump was then translated into French, Spanish, German and Portuguese. The Italian edition, translated by Paolo Dilonardo, was published by Mondadori in 2008
Expert comment: Fighting for Change? Reconsidering anti-crime boxing schemes.
Get PDFAs more than 700 people sign a petition to save a police led anti-crime boxing fitness programme, Dr Deborah Jump calls for a reconsideration of such schemes
The Gerber-Shiu expected discounted penalty-reward function under an affine jump-diffusion model.
Get PDFWe provide a unified analytical treatment of first passage problems under an affine state-dependent jump-diffusion model (with drift and volatility depending linearly on the state). Our proposed model, that generalizes several previously studied cases, may be used for example for obtaining probabilities of ruin in the presence of interest rates under the rational investement strategies proposed by Berk & Green (2004)First passage problems; Risk process; Stochastic rates of interest; Ruin with interest; Affine jump-diffusion models; Penalty/reward functions at ruin;
The Criminology of Boxing, Violence and Desistance
No full textJump assesses conflicting evidence and presents in-depth case studies of fighters to ask whether boxing's values of discipline and respect can create a support network that helps young men refrain from reoffending
“Look who is laughing now”: physical capital, boxing, and the prevention of repeat victimisation
Get PDFThis paper’s aim is to further current thinking around young men’s perceptions and understanding of violence, and the use of boxing as a vehicle in the prevention of repeat victimization. The focus is on the use of bodily or physical capital, and the ways in which men draw upon this resource to ward off attacks to identity and psyches, especially those perceived as disrespectful. It will draw on data from The Criminology of Boxing, Violence and Desistance (Jump 2020), and present overarching ideas from Tyrone, a psychosocial case study highlighting the underpinning theory and its development. This paper disrupts common discourses that argue that boxing is a panacea for all violence, and thus presents more subjective nuanced accounts of men’s lives in the gym, and the streets. In using the term “physical capital”, I employ Wacquant’s (1995) theory, and suggest that boxers not only use their body as a “form of capital” (p. 65), but that the physical capital accrued through the corporeal praxis of boxing, is actually a way to disavow prior victimization, and invest in the prevention of repeated traumatic scenarios
The spread of a viscoelastic circular jet and hydraulic jump
No full textWe examine theoretically the spread of a jet impacting on a circular disk and the hydraulic jump of a viscoelastic fluid of the Oldroyd-B type. The depth-averaging approach is employed in the supercritical region. The subcritical flow is assumed to be inertialess of the lubrication type, and the downstream boundary condition is assumed to be a known parameter. The jump is treated as an abrupt shock, where the balance of mass and momentum is applied across it in the radial direction. The influence of viscoelasticity on the flow behavior is deduced by comparing against the well-established Newtonian limit. The analysis of the flow in the thin-film region reveals that the film thickness increases with viscoelasticity, aligning with the findings of previous studies on viscoelastic thin-film flows. Overall, all elastic stresses diminish downstream of the jump, implying that the contribution of viscoelasticity in the formation of the jump can be predominantly attributed to the rise of the elastic stresses upstream. It is found that viscoelasticity yields an increase in the jump height and a decrease in its radius, resulting in the jump occurring in closer proximity to the impingement point. A dimensionless group involving Deborah number and solute-to-polymer viscosity ratio successfully collapses the predicted jump radius onto a single curve, suggesting the configuration’s potential as a rheometer. At high Deborah numbers, the jump radius remains unchanged with varying downstream conditions. As gravity decreases, a small hump in the film manifests in the upstream region, and the jump radius becomes larger
Predicting growth rates of interfaces and internal layers in a turbulent boundary layer using a first order jump model
No full textExperimental research is presented on the characteristics of interfaces and internal layers that are present in a turbulent boundary layer (TBL). Both the turbulent non-turbulent interface (T/NT) and internal shear layers are detected in snapshots of the stereo-PIV data. It turns out that the internal layers exhibit similar characteristics compared to the T/NT interface. A theoretical approximation of the large scale boundary layer growth indicates that the correct boundary layer growth can be obtained by employing a modified first order jump model on the conditional statistics. Employing the same framework to the internal shear layers indicates that shear layers tend to move slower in close proximity to the wall, whereas they accelerate when moving away from the wall. Based on previous research it is believed that these internal layers separate large regions of approximately uniform momentum. Hence, boundary entrainment velocities may be interpreted as growth rates of large scale motions in a TBL
DS_10.1177_0363546518793393 – Supplemental material for Effects of an Intervention Program on Lower Extremity Biomechanics in Stop-Jump and Side-Cutting Tasks
No full textSupplemental material, DS_10.1177_0363546518793393 for Effects of an Intervention Program on Lower Extremity Biomechanics in Stop-Jump and Side-Cutting Tasks by Chen Yang, Wanxiang Yao, William E. Garrett, Deborah L. Givens, Jonathon Hacke, Hui Liu and Bing Yu in The American Journal of Sports Medicine</p
A reliable progressive fatigue damage model for life prediction of composite laminates incorporating an adaptive cyclic jump algorithm
No full textIn this paper, a reliable progressive fatigue damage model (PFDM) for predicting the fatigue life of composite laminates is proposed by combining the normalized fatigue life model, nonlinear residual degradation models and fatigue-improved Puck criterion. To balance the accuracy of life predictions and computational efficiency, an adaptive cyclic jump algorithm is developed and implemented within the PFDM. The sensitivity of life prediction to cyclic jump parameter has been greatly reduced by correlating the cyclic jump with the increment time and viscous coefficient. Therefore, the cyclic jump parameter can be arbitrarily selected within a relatively large range to obtain convergent results. When incorporating the adaptive cyclic jump algorithm, there is no need to define a standard for determining the material failure in numerical calculations, which effectively eliminates an artificially induced uncertainty in life predictions. Two sets of experiments are conducted to validate the proposed PFDM. The numerical predictions including static failure strength and fatigue life correlate reasonably well with the available experimental data.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Structural Integrity & Composite
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