101 research outputs found

    Psychological contributions to cold case investigations: A systematic review

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    This article presents a systematic review of the available literature on ‘what works’ in cold case investigations, with a specific focus on psychological evidence-based research. Long-term unsolved and cold cases present their own unique set of challenges, such as lack of hard evidence, recall accuracy, and witness credibility. Therefore, this review provides a collated base of research regarding preventative methods and investigative tools and techniques developed to highlight gaps in the literature and inform best practice in cold case investigations. The review features victim and crime characteristics that may contribute to a case becoming cold and displays contributing factors to cold case clearance. Although promising, at present, psychological research in this field is insufficient to inform evidence-based guidance. Future research should aim to explore the wider psychological and criminal justice-based literature (e.g., memory retrieval and cognitive bias) to investigate what could be applicable to cold case investigations

    Rock Varnish on Hualalai and Mauna Kea Volcanoes, Hawai'i

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    Tropical rock varnishes found on Hualalai and Mauna Kea Volcanoes, Hawai'i, vary systematically with time and environment. Radiocarbon dating of encapsulated organic matter, (K+ + Ca2+)/Ti4+ ratios, and Zn, Cu, and Ni trace element concentrations in rock varnish are consistent with lava flowages established by K-Ar and 14C dating, where samples are collected from arid microsites well away from the soil surface. However, inaccurate ages are obtained from rock varnish in subsurface locations and from sites with abundant lichens, cyanobacteria, and fungi that chemically erode varnish. In contrast with continental deserts, Hawaiian varnishes commonly interfinger with and are less common than rock coatings of amorphous silica. Laboratory experiments on Hawaiian rock varnishes indicate that K and Ca are preferentially leached relative to Ti over time and at higher temperatures. The location of in situ leaching has been identified in Hawaiian varnishes as porous textures without abundant detrital grains

    Conducting Sustainable Energy Projects in Secondary Science Classrooms

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    NOTES ON RARE USA PLANTS FROM ARIZONA I. INCLUDING A TALINUM PORTULACACEAE NEW TO THE USA

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    Volume: 60Start Page: 237End Page: 24

    A new Setaria (Gramineae: Paniceae) from Argentina

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    Volume: 10Start Page: 415End Page: 41
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