A search for the body of a victim of terrorist abduction and murder was made in a graveyard on the periphery of a major conurbation in Northern Ireland. The area is politically sensitive and the case of high profile. This required non-invasive, completely non-destructive and rapid assessment of the scene. A MALA RAMAC ground-penetrating radar system was used to achieve these objectives. Unprocessed and processed 400 MHz data show the presence of a collapse feature above and around a known 1970s burial with no similar collapse above the suspect location. In the saturated, clay-rich sediments of the site, 200 MHz data offered no advantage over 400 MHz data. Unprocessed 100 MHz data shows a series of multiples in the known burial with no similar features in the suspect location. Processed 100 MHz lines defined the shape of the collapse around the known burial to 2 m depth, together with the geometry of the platform (1 m depth) the gravedigger used in the 1970s to construct the site. In addition, processed 100 MHz data showed both the dielectric contrast in and internal reflection geometry of the soil imported above the known grave. Thus the sequence, geometry, difference in infill and infill direction of the grave was reconstructed 30 years after burial. The suspect site showed no evidence of shallow or deep inhumation. Subsequently, the missing person's body was found some distance from this site, vindicating the results and interpretation from ground-penetrating radar. The acquisition, processing, collapse feature and sequence stratigraphic interpretation of the known burial and empty (suspect) burial site may be useful proxies for other, similar investigations. GPR was used to evaluate this site within 3 h of the survey commencing, using unprocessed data. An additional day of processing established that the suspect body did not reside here, which was counter to police and community intelligence. 相似文献
Absolute measurements of soil density using a weight gauge attached to the standard probe of Owsley [D.W. Owsley, Techniques for locating burials, with emphasis on the probe. J. Forensic Sci. 40 (5) (1995) 735-740] provide digital data for operator-independent verification and possible later manipulation. The weight gauge measures insertion pressure that depends on soil density, variations in which may define areas of disturbance. Iterative reconnaissance surveys allow selection of appropriate probe length and weight gauge type in order to obtain maximum sensitivity. In a test case, a probe was used to locate a 50 cm-wide, 3-year-old fibre optic cable trench in urban circumstances where geophysics would have proven challenging. Subjective surveys using the standard 1m probe located the trench; summary digital output from the weight gauge (contoured on site in 1 h) allowed the original form of the trench to be ascertained. This is a preliminary note: the technique requires testing by parallel measurement, comparison to other (especially geophysical) techniques and in a court of law. 相似文献
The recent formation of a United Kingdom and Irish working group, the Body Fluids Forum (BFF), highlighted the need to investigate different working practices prior to any inter-laboratory comparison work and identification of best practice. Various dilutions of semen were seeded onto swabs and cloth samples for each BFF member laboratory to test using their standard techniques. The results showed that the detection of acid phosphatase on swabs is best achieved using direct testing rather than on an extract from the swab. Extraction methods for spermatozoa require a balance to be achieved between using a sufficient volume of water to ensure optimal release and minimal volume to ensure a concentrated extract. PSA tests were investigated and found to be more sensitive than Choline. DNA profiles were obtained from samples in which no spermatozoa had been detected during microscopic examination. 相似文献
Can public inquiries learn lessons in ways which can reduce the likelihood of future failure? Political science research has consistently stated that the answer to this question should be an emphatic no and defined the public inquiry as an ineffectual lesson-learning mechanism. This article, however, contends that this conventional wisdom needs to be revisited. Drawing upon policy learning research for its theory, and 100 interviews across four international cases for its evidence, this article returns to the question above and finds that inquiries regularly produce ‘instrumental’ and ‘cognitive organisational’ forms of learning, which propel substantive reform agendas. By contrasting these outcomes against the types of learning that inquiries struggle to produce, the article delivers a nuanced evaluation that indicates that we need to reconsider what we think we know about these important institutions.
Antonio Gramsci adopted a developmentalist position after becoming a marxist. He thus departed from earlier Italian positions in foreseeing a society in which peasants — understood as a structure of petty property and its dependants ‐ would eventually though not immediately be peasants no more after the introduction of modern methods of cultivation. After the success of fascism in 1922 he began to reconsider his assumption that the peasantry were destined to disappear in a new mode of production, which would replace the backward dual economy of Italy. If the peasantry were not always in secular decline before the onward march of capitalism, but could, as in Italy, increase in numbers and political strength even under capitalism, then this called for a reassessment of their social and political role in a marxism which was not simply developmental in the old sense. In the 1930s in particular, Gramsci therefore started to develop strategies for change which assumed that: (1) the peasantry would remain in the foreseeable future as a significant political force; (2) their ethos and values would therefore have to be incorporated in any marxist theory of transition and socialism, and (3) developmentalism or modernisation would have to be re‐examined as a core part of marxist strategy. 相似文献
Abstract: Recently a small sampled cadaver study (n = 4) suggested that the human eyeballs are placed closer to the orbital roof and lateral orbital wall as first reported in the anatomical literature many years previously. This contrasts with central positioning of the eyeball within the orbit as advocated by the facial approximation literature. Given the limits of such small samples, this study re-examined globe position in nine new cadavers to help clarify which relationship is accurate. The results essentially confirm prior empirical findings except that the mean lateral divergences from the orbit center were found to be larger—the eyeball was found to be “displaced” 1.4 mm superiorly and 2.4 mm laterally. Medians calculated across all 13 cadavers from this study and the above-mentioned recent report refine these measurements to 1.4 and 2.3 mm respectively. Globe projection values were identical to those observed for living individuals (c. 16 mm). 相似文献