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71.
In this pilot study, the authors tested whether photogrammetry can replace or supplement physical measurements made during autopsies and, based on such measurements, whether virtual computer models may be applicable in forensic reconstructions. Photogrammetric and physical measurements of markers denoting wounds on five volunteers were compared. Virtual models of the volunteers were made, and the precision of the markers' locations on the models was tested. Twelve of 13 mean differences between photogrammetric and physical measurements were below 1 cm, which indicates that the photogrammetric method has a high accuracy. The precision of the markers' location on the models was somewhat less, although the method is still promising and potentially superior to the current procedures used for reconstructions. The possibility to measure any distance on a body, even after the autopsy is concluded and the corpse is no longer available, is one of the biggest benefits of photogrammetry.  相似文献   
72.
Closed circuit television (CCTV) footage is often available from crime scenes and may be used to compare perpetrators with suspects. Usually, the footage comprises incomplete gait cycles at different velocities, making gait pattern identification from crimes difficult. This study investigated the concurrence of joint angles throughout a gait cycle at three different velocities (3.0, 4.5, 6.0 km/h). Six datasets at each velocity were collected from 16 men. A variability range VR throughout the gait cycle at each velocity for each joint angle for each person was calculated. The joint angles at each velocity were compared pairwise, and whenever this showed values within the VR of this velocity, the case was positive. By adding the positives throughout the gait cycle, phases with high and low concurrences were located; peak concurrence was observed at mid‐stance phase. Striving for the same velocity for the suspect and perpetrator is recommended.  相似文献   
73.
Several theories of legislative organisation have been proposed to explain committee selection in American legislatures, but do these theories travel outside the United States? This paper tests whether these theories apply to data from the Canadian House of Commons. It was found that the distributive and partisan models of legislative organisation explain committee composition in Canada. In many cases, committees in the House of Commons are made up of preference outliers. As predicted by partisan models, it was also found that the governing party stacks committees with its members, but this is conditional upon the strength of the governing party.  相似文献   
74.
This article focuses on the role of Lord Home, the British Foreign Secretary, in the conduct of Anglo–American relations between 1961 and 1963. It studies three controversial policy areas: the newly independent states of Laos and the Congo, along with the debate over the decolonization of British Guiana; the key Cold War issues of Berlin and Cuba; and a variety of nuclear weapons–related matters. It is argued that Home, in constantly striving to maintain the alliance, was more pro-American than Macmillan. He exercised an important restraining and calming influence on the Prime Minister, preventing him from pursuing potentially damaging initiatives. However, the relationship between the two men was strong. Home’s diplomacy usually complimented Macmillan’s interventions and they often worked together.  相似文献   
75.
Using unique, environmentally augmented household panel data reflecting households’ annual cash and subsistence income portfolios, we model change over time in the value of four assets – livestock, implements, savings, and jewellery. A seemingly unrelated regression model reveals that although environmental resources on average contribute 16 per cent of the total household income, the contribution to asset accumulation is limited. Hence, environmental income does not constitute a pathway out of poverty in Nepal under the current set of regulations and tenure regimes. Asset accumulation was instead associated (both negatively and positively) with agricultural income (particularly as subsistence income), wage and business income. Most environmental income was obtained as subsistence income indicating that the environmental resources that households have access to present little opportunity for cash generation. Securing access of the poor to environmental resources may increase its role in poverty alleviation.  相似文献   
76.
Laboratory procedures used in short tandem repeat (STR) analysis were subjected to various scenarios that assessed reliability and identified potential limitations. These validation studies were designed as recommended by the Technical Working Group on DNA Analysis Methods (TWGDAM) and the DNA Advisory Board (DAB) (17,18). Various DNA samples were amplified by the polymerase chain reaction (PCR) using AmpFlSTR PCR Amplification Kits (i.e., AmpFlSTR Green I, Profiler, Profiler Plus, and COfiler kits), detected with ABI Prism instrumentation, and analyzed using GeneScan and Genotyper software. Data acquired in these studies reinforced an existing body of knowledge and expertise regarding application and interpretation of STR typing in the forensic science community. Consistent STR genotypes were detected in various body tissues and fluids. Inter-laboratory comparisons produced concordant genotype results. Quantitative interpretational aids for DNA mixtures were characterized. Ability of the typing systems to type potentially compromised samples reliably was evaluated. Nonprobative case evidentiary DNA was successfully amplified, genotyped, and interpreted. Potential limitations or cautionary factors in the interpretation of minimal fluorescence intensity were demonstrated. Differential amplification between loci was observed when PCR was inhibited; preferential amplification typically was not. Single AmpFlSTR locus amplification did not offer consistent benefit over AmpFlSTR multiplexing, even in cases of DNA degradation or PCR inhibition. During rigorous evaluation, AmpFlSTR PCR Amplification Kits reproducibly yielded sensitive and locus-specific results, as required in routine forensic analyses.  相似文献   
77.
78.
This investigation examined the relationships between physical, psychological, and sexual abuse along with vulnerability appraisals, positive and negative social relations, and socioeconomic resources on battered women's depression symptomatology and physical functioning. Women were recruited following an incident of partner violence that resulted in a police-report or the filing of a protection order. Participants were surveyed using a standardized questionnaire. Bivariate correlations and multiple regressions were used to examine the relationships between predictors as well as the cumulative and unique contributions of each variable set in explaining depression and physical functioning. Findings indicate that vulnerability appraisals, social relations, and socioeconomic resources significantly explain women's depression and physical functioning over and above the unique effect of specific types of partner violence. Given that women's physical and mental health are important aspects of assisting women with safety planning and violence cessation strategies, implications for assessment and interventions for battered women are discussed.  相似文献   
79.
INDUSTRY-UNIVERSITY TECHNOLOGY TRANSFER IN MICROELECTRONICS   总被引:2,自引:0,他引:2  
Federal, state and local governments have encouraged university-industry cooperation in recent years through a number of different policies and programs. Industry has increasingly been looking to universities for new ideas, closer collaboration and more timely access to research results. Various levels of government have become increasingly involved in joint funding with industry in new university-industry research centers and institutes. State and local governments spend considerable effort to attract high-technology industry, using university-industry collaborative programs as one incentive. Yet despite the theoretical and policy importance of this topic, it has received little systematic research attention.
This contribution reports the results of a National Science Foundation-funded study investigating technology transfer in microelectronics between Arizona State University located in the Phoenix metropolitan area and surrounding microelectronics firms. The results describe state and local initiatives influencing such technology transfer, how the initial technology transfer contact comes about, how research goals, topics and activities are decided upon, and how resources and funding support is secured. In addition satisfaction from, benefits and costs of, as well as attitudes bout technology transfer are reported.  相似文献   
80.
The near inevitable transfer of explosive particulate matter through fingerprints makes it possible to detect concealed explosives through surface sampling. Repeatable and well-characterized fingerprint simulation facilitates quantitative comparison between particulate sampling methods for subsequent detection of trace explosive residues. This study employs a simple, but reproducible sampling system to determine the accuracy of a fingerprint simulation. The sampling system uses a gas jet to entrain particles from a substrate and the resulting airborne particles are then aspirated onto a Teflon filter. A calibrated Barringer IonScan 400 ion mobility spectrometer was used to determine the mass of explosive material collected on the filter. The IonScan 400 was calibrated with known masses of 2,4,6-trinitrotoluene (TNT). The resulting calibration curve is in good agreement with that obtained by Garofolo et al. (1994) for an earlier model of the instrument. The collection efficiency of the sampling system was measured for three particle sizes (8.0. 10.0, and 13.0 microm) using spherical polystyrene particles laced with known quantities of TNT. Collection efficiency ranged from less than 1% for the larger particles to 5% for the smaller particles. Particle entrainment from the surface was monitored with dark field imaging of the remaining particles. The sampling system was then applied to two C4 test samples--a fingerprint transfer and a dry Teflon transfer. Over 100 ng of RDX was collected from the dry transfer sample, while less than 1 ng was collected from the fingerprint transfer. Possible explanations for this large difference are presented based on the system calibration.  相似文献   
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