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  • 1
    Online Resource
    Online Resource
    Wiley ; 2007
    In:  Journal of Forensic Sciences Vol. 52, No. 2 ( 2007-03), p. 249-263
    In: Journal of Forensic Sciences, Wiley, Vol. 52, No. 2 ( 2007-03), p. 249-263
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2007
    detail.hit.zdb_id: 2026357-0
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  • 2
    In: Journal of Forensic Sciences, Wiley, Vol. 54, No. 1 ( 2009-01), p. 159-166
    Abstract: Abstract:  Detection of mass graves utilizing the hyperspectral information in airborne or satellite imagery is an untested application of remote sensing technology. We examined the in situ spectral reflectance of an experimental animal mass grave in a tropical moist forest environment and compared it to an identically constructed false grave which was refilled with soil, but contained no cattle carcasses over the course of a 16‐month period. The separability of the in situ reflectance spectra was examined with a combination of feature selection and five different nonparametric pattern classifiers. We also scaled up the analysis to examine the spectral signature of the same experimental mass grave from an air‐borne hyperspectral image collected 1 month following burial. Our results indicate that at both scales ( in situ and airborne), the experimental grave had a spectral signature that was distinct and therefore detectable from the false grave. In addition, we observed that vegetation regeneration was severely inhibited over the mass grave containing cattle carcasses for up to a period of 16 months. This experimental study has demonstrated the real utility of airborne hyperspectral imagery for the detection of a relatively small mass grave (5 m 2 ) within a specific climatic zone. Other climatic zones will require similar actualistic modeling studies, but it is clear that the applications of this technology provide the international community with both an early detection tool and a tool for ongoing monitoring.
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2009
    detail.hit.zdb_id: 2026357-0
    SSG: 2,1
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  • 3
    Online Resource
    Online Resource
    Wiley ; 2017
    In:  Journal of Forensic Sciences Vol. 62, No. 3 ( 2017-05), p. 655-667
    In: Journal of Forensic Sciences, Wiley, Vol. 62, No. 3 ( 2017-05), p. 655-667
    Abstract: Human geolocation is prefaced on the accuracy of the geographic precision of mapped isotopic values for drinking water. As most people live in cities, it becomes important to understand city water supplies and how the isotopic values uniquely reflect that city. This study investigated the isotopic distribution of δ 2 H and δ 18 O from sourced tap waters that were collected from across the Metro Vancouver ( MV ) area ( n  = 135). The results revealed that the isotopic values reflect their water sources with a range of 5.3‰ for δ 18 O tap and 29.3‰ for δ 2 H tap for MV . The results indicate that individual cities need higher resolution studies to determine their tap water isotopic ranges, and a good understanding of the water supply network itself for human geolocation work. With an extended high‐resolution understanding of each city, human tissue may be compared with more certainty for geolocation.
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2026357-0
    SSG: 2,1
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  • 4
    Online Resource
    Online Resource
    Wiley ; 2020
    In:  Journal of Forensic Sciences Vol. 65, No. 4 ( 2020-07), p. 1247-1259
    In: Journal of Forensic Sciences, Wiley, Vol. 65, No. 4 ( 2020-07), p. 1247-1259
    Abstract: Aging adult skeletal material is a crucial component of building the biological profile of unknown skeletal remains, but many macro‐ and microscopic methods have challenges regarding accuracy, precision, and replicability. This study developed a volumetric method to visualize and quantify histological remodeling events in three dimensions, using a two‐dimensional serialized approach that applied circular polarizing microscopy and geographic information systems protocols. This approach was designed as a tool to extend current histological aging methodologies. Three serial transverse sections were obtained from a human femoral midshaft. A total sample size of 6847 complete osteons from the three sections was identified; 1229 osteons connected between all sections. The volume of all connected osteons was interpolated using ArcGIS area calculations and truncated cone geometric functions. Each section was divided into octants, and two random samples of 100 and of 30 connected osteons from each octant were generated. Osteon volume was compared between the octants for each random sample using ANOVA. Results indicated that the medial aspect had relative uniformity in osteon volume, whereas the lateral aspect showed high variability. The anterolateral–lateral octant had significantly smaller osteon volume, whereas the posterior–posterolateral octant had significantly larger osteon volume. Results also indicated that a minimum of 100 osteons is statistically more robust and more representative of normal osteon distribution and volume; the use of 30 osteons is insufficient. This research has demonstrated that osteon volume can be interpolated using spatial geometry and GIS applications and may be a tool to incorporate into adult age‐at‐death estimation techniques.
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2026357-0
    SSG: 2,1
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  • 5
    Online Resource
    Online Resource
    Wiley ; 2023
    In:  Journal of Forensic Sciences Vol. 68, No. 2 ( 2023-03), p. 382-398
    In: Journal of Forensic Sciences, Wiley, Vol. 68, No. 2 ( 2023-03), p. 382-398
    Abstract: Stable carbon isotope analysis has proven utility for reconstructing dietary information in humans in past populations. The usefulness of stable carbon for forensic geolocation has been little investigated, largely because of the globalization of the human diet seemingly rendering it inconsequential. This study queried this assumption at a country‐wide level on a known sample group. Stable carbon isotope values were obtained from human enamel with known biographical and geographical information to determine whether stable carbon, when paired with stable oxygen isotope values, could differentiate Canadians from non‐Canadians. Samples originating outside of Canada were separated into three regions, and a linear discriminant analysis was used to generate discriminant functions that best separate the regions according to the stable carbon and oxygen isotope values. The results revealed two functions, where the first function explained 92.1% and the second 7.9% of the variance. Although some overlap in stable carbon and oxygen values was observed for individuals from both the United States and Canada, differences were observed between those from Canada and other geographical regions. This study demonstrated that pairing the dietary isotope carbon with the geolocator stable oxygen isotope, produced an interesting separation geographically, one that might well be helpful when attempting a geolocation query on unknown human remains.
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2026357-0
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  • 6
    In: Journal of Forensic Sciences, Wiley
    Abstract: Early recovery of human bodies from the water requires an understanding of how a body acts in the water. However, there is currently a lack of baseline data surrounding body movement in British Columbian (B.C.) waters. This study aims to assist Canadian response agencies with understanding and predicting body movement in outdoor waterbodies in B.C. One hundred and eighty‐six water‐related fatalities in B.C. waters, including lakes, rivers, and the coastal Pacific Ocean, were examined to determine the recovery times and displacement patterns of submerged decedents. Cases between 2010 and 2021 were extracted from the Police Records Information Management Environment (PRIME‐BC) for analysis. Most deaths were unintentional, followed by suicide and homicide, and most often occurred in rivers, followed by lakes and the ocean. Regardless of waterbody, the first day was the most successful recovery period, with decedents most often recovered close to the incident location. Nearly 16% of individuals in this study were not recovered. Recovery success was greatest in lakes, followed by rivers and the ocean. Body displacement was the least in lakes, while rivers resulted in the furthest and most variable displacement. Low recovery success in the ocean is likely due to decedents being quickly displaced out of the search area, never to be found. The results of this study suggest that knowledge of body movement in outdoor aquatic environments remains incomplete. Further empirical research based on known data is necessary to continue improving prediction of body movement and increase early recovery success.
    Type of Medium: Online Resource
    ISSN: 0022-1198 , 1556-4029
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2026357-0
    SSG: 2,1
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