Preliminary analysis of fuel tank impact

Following the accident involving the Air France Concorde in 2000 the effects of fluid structure interactions resulting from the impact of a fluid filled tank has become a cause for concern. The work reported here relates to the design of a series of experiments loosely based upon the Concorde incident which aimed to assess whether the probable failure mode in the Concorde accident could occur in land based vessels. Preliminary numerical analyses were undertaken for two of the nine cases that were investigated experimentally in which an empty tank was impacted by a projectile with a velocity of 14m/s and 21.9m/s Initial numerical results for the acceleration at two points on the tank surface and the deformation at the impact zone showed good agreement with test data. Future work is discussed including further numerical modelling incorporating fluid structure interactions for the analysis of the cases when the tank is partially full or completely full

Review of \u3cem\u3eSocial Work Practice: A Critical Thinkers Guide.\u3c/em\u3e New York: Oxford University Press, 1997. Eileen Gambrill. Reviewed by Bruce Thyer, University of Georgia.

Book review of Eileen Gambrill, Social Work Practice: A Critical Thinker\u27s Guide. New York: Oxford University Press, 1957. $ 59.95 hardcover

Notes From "How to Get Published in Health Sciences and Human Services Journals"

The University Archives has determined that this item is of continuing value to OSU's history.Thyer, Bruce A., Ph.D., L.C.S.W., School of Social Work, The University of Georgia - "Notes From 'How to Get Published in Health Sciences and Human Services Journals'"The Ohio State University College of Social Wor

Project Prevention: Concept, Operation, Results and Controversies About Paying Drug Abusers to Obtain Long-Term Birth Control

This Article describes the origins and current operation of Project Prevention, a privately-funded program that provides a payment of $300 to substance abusers who obtain long-term birth control. This practice is intended as a means to prevent the conception of babies to mothers who are prone to expose their developing child to toxic levels of alcohol or other drugs during pregnancy, likely to be unable to care for their child once born, and at risk for having their child removed from their custody by the state and placed in foster care or an adoptive home. Children born to such mothers are at a high risk for developmental disadvantages and incur a high cost to society, which all too often has to provide medical or custodial care for them. Substance-abusing men who enroll in Project Prevention and obtain a verified vasectomy receive a similar payment. Thus far, Project Prevention has enrolled over 5,000 clients and paid out over$1 million in incentives. Some critics of Project Prevention have raised objections to this program; this Article describes and responds to a number of these objections. The Article concludes that this circumscribed program is highly effective and ethical, and provides a needed preventive service. In this manner, it emulates much larger-scale initiatives funded by the federal government, which have paid for the costs of long-term birth control, including sterilization, for indigent people. The federal government has long-provided financial inducements through foreign aid programs for the poor of other countries to obtain long-term birth control, also including sterilization. Therefore, any criticisms of Project Prevention must also be extended to existing, analogous federally funded programs

Students' misconceptions in Dynamics: An interventionist approach using a computer simulation.

NEWLOGO (NEWtonian LOGO) is a special-purpose, LOGO-like programming language for simulating motion with and without inertia, gravitation and friction. Its effect on student performance and understanding has been assessed by using a dynamics test that we developed, together with interviews and observation of NEWLOGO use. The notion of ‘misconceptions’ in the area of dynamics is discussed, and related to the literature

Community-Based Self-Help Groups for the Treatment of Agoraphobia

The design and conduct of community-based self-help groups for the treatment of agoraphobia are discussed. Such groups incorporate procedures encouraging members to engage in prolonged therapeutic exposure to anxiety-evoking situations. Exposure therapy and its variants have been empirically established as the treatment of choice for agoraphobia, and self-help groups lend themselves extremely well to community mental health outreach and service efforts

Climate-informed stochastic hydrological modeling: Incorporating decadal-scale variability using paleo data

A hierarchical framework for incorporating modes of climate variability into stochastic simulations of hydrological data is developed, termed the climate-informed multi-time scale stochastic (CIMSS) framework. A case study on two catchments in eastern Australia illustrates this framework. To develop an identifiable model characterizing long-term variability for the first level of the hierarchy, paleoclimate proxies, and instrumental indices describing the Interdecadal Pacific Oscillation (IPO) and the Pacific Decadal Oscillation (PDO) are analyzed. A new paleo IPO-PDO time series dating back 440 yr is produced, combining seven IPO-PDO paleo sources using an objective smoothing procedure to fit low-pass filters to individual records. The paleo data analysis indicates that wet/dry IPO-PDO states have a broad range of run lengths, with 90% between 3 and 33 yr and a mean of 15 yr. The Markov chain model, previously used to simulate oscillating wet/dry climate states, is found to underestimate the probability of wet/dry periods >5 yr, and is rejected in favor of a gamma distribution for simulating the run lengths of the wet/dry IPO-PDO states. For the second level of the hierarchy, a seasonal rainfall model is conditioned on the simulated IPO-PDO state. The model is able to replicate observed statistics such as seasonal and multiyear accumulated rainfall distributions and interannual autocorrelations. Mean seasonal rainfall in the IPO-PDO dry states is found to be 15%-28% lower than the wet state at the case study sites. In comparison, an annual lag-one autoregressive model is unable to adequately capture the observed rainfall distribution within separate IPO-PDO states. Copyright © 2011 by the American Geophysical Union.Benjamin J. Henley, Mark A. Thyer, George Kuczera and Stewart W. Frank

Is hyperbaric oxygen therapy an effective treatment for autism? A review

Objectives: We review outcome studies regarding the effectiveness of hyperbaric oxygen therapy (HBOT) for Autism Spectrum Disorders (ASD). Method: Studies were identified through electronic bibliographic databases and manual searches of article reference lists. Results: A total of 8 studies met eligibility criteria, consisting of three randomized controlled trials (RCTs), one quasi-experimental study involving a comparison group, two pre-experimental one-group pretest–posttest studies, and two single-system designs. Studies reviewed did not offer credible evidence to suggest that HBOT is an effective treatment for autism. Conclusion: It is premature to call HBOT an effective treatment for Autism and ASD. Individuals clinically treated with HBOT outside the context of a RCT should have the effects of the therapy evaluated using rigorous single-subject designs