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Sharifah Mastura Syed Mohd Daud MS Chong Chin Heo PhD Mohd Yusmiaidil Putera Mohd Yusof PhD Lay See Khoo PhD Mansharan Kaur Chainchel Singh PhD Mohd Shah Mahmood MSC Muhammad Dzulfiqri Bin Muhammad Nasir MBA Hapizah Nawawi PhD 《Journal of forensic sciences》2024,69(2):542-553
Manual ground searches and cadaver dogs are traditional methods for locating remains, but they can be time- and resource-intensive, resulting in the decomposition of bodies and delay in victim identification. Therefore, thermal imaging has been proposed as a potentially useful tool for detecting remains based on their temperature. This study investigated the potential of a novel search technique of thermal drones to detect surface remains through the detection of maggot mass temperatures. Two trials were carried out at Selangor, Malaysia, each utilizing 12 healthy male Oryctolagus cuniculus European white rabbits and DJI Matrice 300 RTK drone China, equipped with a thermal camera; Zenmuse H20T to record the thermal imaging footage of the carcasses at various heights (15, 30, 60–100 m) for 14 days for each trial. Our results demonstrated that the larval masses and corresponding heat emissions were at their largest during the active decay stage; therefore, all the carcasses were observable in thermal images on day 5 and remained until day 7. Statistical analyses showed that (1) no statistically significant differences in thermal images between clothed and unclothed subjects (p > 0.05); (2) 15 m above ground level was proven to be the optimal height, as it showed the greatest contrast between the carcass heat signature and the background (p < 0.005). Our data suggested the potential window of detection of thermal signatures was detectable up to 7 days post-deposition. This could be an important guideline for the search and recovery teams for operational implementation in this tropical region. 相似文献
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Sharifah Mumtazah Syed Ahmad Ph.D. Loo Yim Ling B.Sc. Rina Md Anwar MIT Masyura Ahmad Faudzi M.Sc. Asma Shakil M.Tech. 《Journal of forensic sciences》2013,58(3):724-731
This article presents an analysis of handwritten signature dynamics belonging to two authentication groups, namely genuine and forged signature samples. Genuine signatures are initially classified based on their relative size, graphical complexity, and legibility as perceived by human examiners. A pool of dynamic features is then extracted for each signature sample in the two groups. A two‐way analysis of variance (ANOVA) is carried out to investigate the effects and the relationship between the perceived classifications and the authentication groups. Homogeneity of variance was ensured through Bartlett's test prior to ANOVA testing. The results demonstrated that among all the investigated dynamic features, pen pressure is the most distinctive which is significantly different for the two authentication groups as well as for the different perceived classifications. In addition, all the relationships investigated, namely authenticity group versus size, graphical complexity, and legibility, were found to be positive for pen pressure. 相似文献
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Franklyn Lisk Annamarie Bindenagel Šehović Sharifah Sekalala 《Contemporary Politics》2015,21(1):25-39
Since it was first advanced in the 1994 Human development report of the United Nations Development Programme [United Nations Development Project. (1994). Human development report. New York: UN], the concept of ‘human security’ has evolved as a holistic development-oriented acuity [Nef, J. (1999). Human security and mutual vulnerability: The global political economy of development and underdevelopment (2nd ed.). Ottawa: International Development Research Centre]. The human security concept reinforces the right to health, drawing on both the role of states and the global community's commitment to human rights. Yet, health and human security, long the purview of state power and responsibility, increasingly include alliances of state and non-state actors. This paper proceeds in three parts. The first looks at health and human security linkages, charting the trajectory of the health and human security relationship. The second deals with policy and operational implications. It explores the health–human security link, paying particular attention to the allocation of responsibility and accountability, including through private–public partnerships and rising powers such as China. The third provides a theoretical and technical analysis of the status of health and human security since 1994, taking into account its evolution vis-à-vis human rights’ development and development more broadly, also asking whether it represents but a wrinkle in time or a new sustainable development paradigm. 相似文献
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Gayoye Martha Hunter Mateenah Manji Ambreena Matinda Miriam Sekalala Sharifah Chaudhary Rachna Lammasniemi Laura Munoth Shreya Prabhat Devyani Sen Jhuma Black Gillian Cowan Sharon Kennedy Chloë Munro Vanessa E. 《Feminist Legal Studies》2021,29(2):263-265
Feminist Legal Studies - In the original publication of the article, errors in the production stages resulted in Vanessa Munro being listed as sole author. 相似文献
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Sharifah Mumtazah Syed Ahmad Ph.D. Ling Yim Loo M.Sc. Wan Azizun Wan Adnan Ph.D. Rina Md. Anwar M.Sc. 《Journal of forensic sciences》2017,62(2):374-381
This study presents a wavelet analysis of resultant velocity features belonging to genuine and forged groups of signature sample. Signatures of individuals were initially classified based on visual human perceptions of their relative sizes, complexities, and legibilities of the genuine counterparts. Then, the resultant velocity was extracted and modeled through wavelet analysis from each sample. The wavelet signal was decomposed into several layers based on maximum overlap discrete wavelet transform (MODWT). Next, the zero crossing rate features were calculated from all the high wavelet sub‐bands. A total of seven hypotheses were then tested using a two‐way ANOVA testing methodology. Of these, four hypotheses were conducted to test for significance differences between distributions. In addition, three hypotheses were run to provide test for interaction between two factors of signature authentication versus perceived classification. The results demonstrated that both feature distributions belonging to genuine and forged groups of samples cannot be distinguished by themselves. Instead, they were significantly different under the influence of two other inherent factors, namely perceived size and legibility. Such new findings are useful information particularly in providing bases for forensic justifications in establishing the authenticity of handwritten signature specimens. 相似文献
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