24 research outputs found

    Large expert-curated database for benchmarking document similarity detection in biomedical literature search

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    Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

    Nature Immersion in an Extreme Environment: Hiroshima Survivors’ Personal Emergence Following Their Atomic Bomb Experience

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    Introduction: Nature immersion is defined as multidimensional connecting with earthy materials to generate personal emergence. Personal emergence is an embodied healing force observable via synchronization of bodily rhythms. Research has revealed positive effects of green space for healing. However, little is known about healing of survivors in the space impacted with radioactive nuclear energies. Purpose: To use the theory of nature immersion to guide exploration of the concepts of connecting with earthy materials, personal emergence and space-time expansion in a sample of people who had experienced the catastrophic nature upheaval of the Hiroshima bombings on 6 August 1945. Method: A descriptive exploratory design with directed content analysis was used with existing qualitative data consisting of 29 Hiroshima atomic-bombing survivors’ description of their experience. Results: Self-healing empirically manifested through 23 survivors’ connection with earthy materials. There was synchrony between recuperating natural space and healing of survivors. Conclusions: Synchrony, as a dimension of human connection with nature, transcended the disharmony of bombing upheaval. Although further exploration is necessary, these findings serve as evidence about the essence of healing as related to nature for those in extreme environments

    Behavioral Therapies Trials

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    Community-based participatory research to prevent substance abuse and HIV/AIDS in African-American adolescents

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    Adolescence is a time for exploration and risk-taking; in today’s urban environment, with the twin threats of substance abuse and HIV/AIDS, the stakes are particularly high. This paper describes a community-based participatory research project to design, implement, and evaluate a faith-based substance abuse and HIV/AIDS prevention program for African-American adolescents. A coalition of university-based investigators and African-American church member stakeholders collaborated on all aspects of Project BRIDGE, the 3-year intervention to reduce substance abuse and HIV/AIDS in African-American adolescents. Our results support the use of community-based participatory research to create desirable change in this setting. Adolescents who participated in Project BRIDGE reported significantly less marijuana and other drug use and more fear of AIDS than a comparison group. Project BRIDGE has been designated an official ministry of the church and the program has been extended to others in the larger metropolitan community. The church now has a welltrained volunteer staff. University faculty developed skills in negotiating with community-based settings. The coalition remains strong with plans for continued collaborative activities
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