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At present, very little research has been devoted to investigating the ability of laser scanning technology to accurately measure height from surveillance video. The goal of this study was to test the accuracy of one particular laser scanner to estimate suspect height from video footage. The known heights of 10 individuals were measured using an anthropometer. The individuals were then recorded on video walking along a predetermined path in a simulated crime scene environment both with and without headwear. The difference between the known heights and the estimated heights obtained from the laser scanner software were compared using a one-way t-test. The height estimates obtained from the software were not significantly different from the known heights whether individuals were wearing headwear (p = 0.186) or not (p = 0.707). Thus, laser scanning is one technique that could potentially be used by investigators to determine suspect height from video footage. 相似文献
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Eugene B. McGregor Jr. 《Journal of policy analysis and management》2011,30(4):947-956
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In this study, we attempt to even out some of the imbalance in suicide research caused by the fact that most such research has been conducted in the Western part of the world with the corresponding common disregard of the potential problems in generalizing findings to different cultural settings. Our point of departure was to look at suicidal behavior as communication and our main purpose was to investigate whether Qvortrup's semiotic four-factor model, which has been empirically supported in the West, would be applicable in an African context, exemplified by Uganda. Interviews of patients admitted to hospital following an act of nonfatal suicidal behavior were conducted in Uganda and Norway and the data were compared. The results showed that the four-factor structure found in the West was not applicable in the Ugandan context, but that two by two of these factors were collapsed into a two-factor model in Uganda: One factor regarding the external dialog and one factor regarding the internal dialog. Some differences and some similarities were found between Norway and Uganda when suicidal behavior was considered as a communicative act. The results are discussed in terms of the differences in the psychological characteristics of the suicidal persons in the two countries, as well as the different cultural settings of the study. 相似文献
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Louise Dixon Catherine Hamilton-Giachritsis Kevin Browne Eugene Ostapuik 《Journal of family violence》2007,22(8):675-689
This study considers the characteristics associated with mothers and fathers who maltreat their child and each other in comparison
to parents who only maltreat their child. One hundred and sixty-two parents who had allegations of child maltreatment made
against them were considered. The sample consisted of 43 fathers (Paternal Family—PF) and 23 mothers (Maternal Family—MF)
who perpetrated both partner and child maltreatment, together with 23 fathers (Paternal Child—PC) and 26 mothers (Maternal Child—MC) who perpetrated child maltreatment only. In addition, 2 fathers (Paternal Victim—PV) and 23 mothers (Maternal Victim—MV) were victims of intimate partner maltreatment and perpetrators of child maltreatment and 7 fathers (Paternal Non-abusive Carer—PNC) and 15 mothers (Maternal Non-abusive Carer—MNC) did not maltreat the child but lived with an individual who did. Within their family unit, 40.7% of parents perpetrated both intimate partner and child maltreatment. However, fathers were
significantly more likely to maltreat both their partner and child than mothers and mothers were significantly more likely
to be victims of intimate partner violence than fathers. PF fathers conducted the highest amount of physical and/or sexual
child maltreatment while MC and MV mothers perpetrated the highest amount of child neglect. Few significant differences between
mothers were found. PF fathers had significantly more factors associated with development of a criminogenic lifestyle than
PC fathers. Marked sex differences were demonstrated with PF fathers demonstrating significantly more antisocial characteristics,
less mental health problems and fewer feelings of isolation than MF mothers. MC mothers had significantly more childhood abuse,
mental health problems, parenting risk factors and were significantly more likely to be biologically related to the child
than PC fathers. This study suggests that violent families should be assessed and treated in a holistic manner, considering
the effects of partner violence upon all family members, rather than exclusively intervening with the violent man.
Requests for reprints should be sent to Louise Dixon, Center for Forensic and Family Psychology, School of Psychology, University
of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom. 相似文献
140.
What kind of international relations research gets published in the field's most recognized journals? Who are its authors? This study investigates the subject matter, methodology, and origin of recent research published in top international relations journals, building on earlier work that has investigated the contents of journals. This study investigates the contents of three international relations journals— International Studies Quarterly , International Organization , and World Politics — which have been consistently ranked as the top three journals in international relations. Data are for the ten most recent completed volume years, 1995–2004. This study finds that international relations scholarship in these three journals focuses on a relatively narrow range of subjects and is produced by a rather homogeneous group of scholars. 相似文献