13,447 research outputs found

    Quality control of microelectronic wire bonds

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    Report evaluates ultrasonic bonding of small-diameter aluminum wire joined to ceramic substrates metalized with thin-film and thick-film gold. Quick testing technique for nondestructive location of poor wire bonds is also presented

    NEET in Essex: A Review of the Evidence

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    This report reviews the published research evidence on the factors and processes that lead some young people into becoming ?Not in Employment, Education or Training? (NEET), and the policy interventions that are deemed to prevent this. It also includes a previously conducted Latent Class Analysis (LCA) of the 2009 Essex NEET cohort, which is analysed alongside the more general published evidence. The literature reviewed was generated from wide rage of bibliographic search engines, academics, policy makers and practitioners working in this field The review will contribute towards the development of more effective policy interventions, and provide an initial foundation for the development of a possible multi-method research project. A primary research project will be able to provide more robust inferences on the causes and processes of becoming NEET and on the interventions designed to prevent this. This will enable Essex County Council to better target and implement effective policy interventions, ultimately reducing the social and economic costs of youth unemployment in Essex

    Double Injustice, Double Trauma: The effects of acquittal of offenders upon the families of victims of homicide

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    Based on in-depth interviews with members Justice After Acquittal - a self-help and campaign group formed by the families of victims of homicide where offenders are seen to have been unjustly acquitted - this study describes and analyses the issues, problems and injustices that the families? experienced at each stage of the criminal justice process, from initial police investigations though to the trial and beyond. The families craved information about what had happened to the victim and what would subsequently happen in response, and they understandably became preoccupied with the details of the police investigation and court case. In order to help them comprehend the homicide and adapt to their trauma, families developed narratives in an attempt to understand the events and individuals surrounding the case. They drew their knowledge from what they knew about the deceased and their lives, the details they had gleaned about the events surrounding the homicide itself, and often also what they knew about the moral character of the suspected offenders. Acquittal, however, smashed those narratives. Families? outlooks were once again shaken, exacerbating their trauma. This forced them to examine and re-examine the police?s initial investigation, the trial, and the main participants that had acquitted, or aided the acquittal of the defendants, and it lead them to lose all faith in the criminal justice system

    Splenic artery aneurysms occurring in liver transplant recipients

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    Comment on “Origin of Friction Anisotropy on a Quasicrystal Surface”

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    A Comment on the Letter by Aleksander E. Filippov, Andrea Vanossi, and Michael Urbakh, Phys. Rev. Lett. 104 074302 (2010). The authors of the Letter offer a Reply

    Space Applications of Automation, Robotics and Machine Intelligence Systems (ARAMIS), phase 2. Volume 2: Telepresence project applications

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    The field of telepresence is defined and overviews of those capabilities that are now available, and those that will be required to support a NASA telepresence effort are provided. Investigation of NASA' plans and goals with regard to telepresence, extensive literature search for materials relating to relevant technologies, a description of these technologies and their state of the art, and projections for advances in these technologies over the next decade are included

    Space applications of Automation, Robotics And Machine Intelligence Systems (ARAMIS). Volume 3, phase 2: Executive summary

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    The field of telepresence is defined, and overviews of those capabilities that are now available, and those that will be required to support a NASA telepresence effort are provided. Investigation of NASA's plans and goals with regard to telepresence, extensive literature search for materials relating to relevant technologies, a description of these technologies and their state of the art, and projections for advances in these technologies are included. Several space projects are examined in detail to determine what capabilities are required of a telepresence system in order to accomplish various tasks, such as servicing and assembly. The key operational and technological areas are identified, conclusions and recommendations are made for further research, and an example developmental program leading to an operational telepresence servicer is presented

    Cyclosporine augments hepatic regenerative response in rats

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    A number of mechanisms participate in the hepatic injury that occurs during and following liver transplantation. A normal allograft regenerative response is probably essential for a successful transplant outcome. In this study, the effect of cyclosporine, a potent immunosuppressant used routinely after liver transplantation, on the regenerative response of the liver after partial hepatectomy was investigated. Male Wistar rats were pretreated for one week with either cyclosporine or the olive oil vehicle and were subjected to either a two-thirds partial hepatectomy or a sham operation. Animals were sacrificed at various times postoperatively and the remnant livers were weighed to determine the liver weight to body weight ratio, two biochemical measures of a regenerative response (cytosolic ornithine decarboxylase activity and thymidine kinase activity), and the hepatic content of estrogen and androgen receptors, as the content of these receptors has been shown to modulate, at least in part, the subsequent hepatic regenerative response. The preoperative hepatic cytosol content of ornithine decarboxylase, thymidine kinase, and estrogen receptor was significantly greater (P<0.05) in rats pretreated with cyclosporine than in those treated with the vehicle alone. A significant increase in ornithine decarboxylase and thymidine kinase activities occurred after partial hepatectomy in both the cyclosporine-pretreated and vehicle-pretreated animals. The absolute levels for each parameter were also greater in the cyclosporine-treated animals than in the vehicle-treated controls at 24 hr after partial hepatectomy (P<0.05). The pattern of change in the hepatic cytosolic content of estrogen and androgen receptors in both groups of animals was comparable with those described previously for regenerating liver. These data suggest that cyclosporine may predispose the liver to respond to either a regenerative signal or perceived need and thereby fortuitously enhance liver graft performance after successful surgical implantation. © 1989 Plenum Publishing Corporation
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