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Yi‐Hong Liao BS Jae‐Sang Hyun PhD Michael Feller MS Tyler Bell PhD Ian Bortins BS James Wolfe MS David Baldwin PhD Song Zhang PhD 《Journal of forensic sciences》2021,66(1):112-128
The forensic science community raised the need for improved evidence recognition, collection, and visualization analytical instrumentation for field and laboratory use. While the 3D optical techniques for imaging static objects have been extensively studied, there is still a major gap between current knowledge and collecting high‐quality footwear and tire impression evidence. Among optical means for 3D imaging, digital fringe projection (DFP) techniques reconstruct 3D shape from phase information, achieving camera‐pixel spatial resolution. This paper presents a high‐resolution 3D imaging technology using DFP techniques dedicated to footwear and tire impression capture. We developed fully automated software algorithms and a graphical user interface (GUI) that allow anyone without training to operate for high‐quality 3D data capture. We performed accuracy evaluations and comparisons comparing with the commercial high‐end 3D scanner and carried out qualitative tests for various impressions comparing with the current practices. Overall, our technology achieves similar levels of accuracy and resolution with a high‐end commercially available 3D scanner, while having the merits of being (1) more affordable; (2) much easier to operate; and (3) more robust. Compared with the current practice of casting, our technology demonstrates its superiority because it (1) is non‐destructive; (2) collects more evidence detail than casts, especially when an impression is fragile; (3) requires less time and money to collect each piece of evidence; and (4) results in a digital file that can easily be shared with other examiners. 相似文献
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ABSTRACTThe efforts undertaken to establish the contemporary European Union started many years earlier. The history of establishing a pan-European organization is interesting not only for historians and economists but also translators and linguists as it is the history of interlingual communication (negotiations and agreements). One such negotiation was allegedly ineffective due to the difference in understanding the French term engagement and its English equivalent employed by translators and interpreters, that is to say the English term commitment. The authors aim at presenting the political background of negotiations and the social semiotic analysis of the terms in question in order to provoke the reader to find the answer to the question whether the negotiation was broken due to interlingual miscommunication resulting from erroneously chosen equivalent or it was destined to failure from the very beginning due to socio-political and economic interests of negotiating parties. In order to achieve that goal, the authors have analysed notes exchanged between the governments of France and Great Britain in course of negotiation. The history of negotiation and the linguistic analysis are combined to illustrate the complexity of meaning construction and the semiotic implications of the contextual dependence of meanings of terms and their dynamic evolution in time and space. 相似文献
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Won S. Choi PhD Edward F. Ellerbeck MD Harsohena Kaur MD Niaman Nazir MBBS MPH Jasjit S. Ahluwalia MD MPH MS 《Journal of youth and adolescence》2006,35(6):969-975
Behaviors developed in adolescence influence health later in life. The purpose of this study was to investigate the frequency of health care provider's discussion of health behaviors with overweight and non-overweight adolescents and identify demographic and health behaviors related to exercise, hours of television viewing, and weight issues associated with these discussions. A Cross sectional survey of urban adolescents was conducted. Trained interviewers administered surveys over a three month period in 2001 at an urban academic pediatric and adolescent clinic. The 252 adolescents surveyed had a mean age of 15 with 49% categorized as being at risk for overweight/overweight and 51% as normal weight using the CDC percentiles for BMI. While 16% of the adolescents reported that their physician or nurse discussed the amount of television they watched, rates of discussion related to exercise (58%), and weight (54%) were much higher. In multivariate analyses, health care provider discussions with adolescents regarding exercise were more common for overweight (O.R.=2.42, 95% C.I. [1.28–4.57]) and at risk for overweight (O.R.=1.98, 95% C.I. [1.03–3.81]) adolescents, whereas physician discussion of television viewing was not associated with weight. Discussions of weight were more common for female (O.R.=2.18, 95% C.I. [1.21–3.95]), African-American (O.R.=2.53, 95% C.I. [1.40–4.57]), and overweight (O.R.=3.92, 95% C.I. [1.97–7.81]) adolescents. Even after adjusting for weight, race and gender strongly influenced the frequency of discussions about weight in physician offices. Although health care providers frequently address weight and exercise with adolescents, more discussions related to sedentary behaviors such as television viewing may be warranted to address adolescent obesity.Received PhD in Epidemiology from University of California, San Diego. Research interests include smoking prevention and cessation among adolescents and health promotion interventions.Received MD from University of Missouri-Kansas City and MPH from Johns Hopkins University. Research interests include health services research and research in support of measurable, systematic improvements in the quality of medical care.Received medical degree from Christian Medical College, Punjab, India and Master of Public Health from University of Kansas School of Medicine. Research interests include diet and physical activity behaviors, role of the environment in obesity and obesity prevention, especially among children and adolescents.Received MBBS from Allama Iqbal Medical College, Punjab University, Lahore, Pakistan and MPH from University of Kansas Medical Center. Research interests include smoking cessation, database design, implementation, data management and analysis, and use of information technology in health care settings.Director, Cancer Prevention, Control, and Population Sciences, Kansas Cancer Institute. Received MD/MPH from Tulane University and MS from Harvard School of Public Health. Research interests include disparities in healthcare; smoking cessation among underserved populations, specifically African Americans; diet, nutrition, obesity, and physical activity. 相似文献
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DR NA JIANG 《人权》2009,8(1):37-38
On February 28, 2008, the State Council Information Office published a white paper entitled China's Efforts and Achievements in Promoting the Rule of Law. This document is the first white paper published by the government on China's rule of law. It contains eight chapters and six appendices to review China's achievements on the road to practicing the rule of law in a compre- hensive way, and to expound the official Chinese policy and position on this is- sue. With some essential points inside, the publication of this white paper is of great significance, especially this year, to China's rule of law, human rights prog- ress, and its communication and dialogue with the international community. 相似文献
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