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排序方式: 共有198条查询结果,搜索用时 15 毫秒
161.
Consuming honey can result in adverse effects owing to poisoning by bacterial (botulism) or plant toxins. We have devised a method to extract polymerase chain reaction (PCR) amplifiable DNA of up to c. 400 bp in length based on dialysis of a 15-mL honey sample for 18 h against deionized water followed by sequential extraction using phenol, phenol/chloroform/isoamyl alcohol, chloroform/isoamyl alcohol, and ether. Sequence analysis of PCR products obtained using "universal" plant, fungal, and bacterial primers targeted to the ribosomal RNA genes has allowed us to identify six different orders of plants (Apiales, Fabales, Asterales, Solanales, Brassicales, and Sapindales), two orders of fungi (Entylomatales and Saccharomycetales), and six orders of bacteria (Sphingomonadales, Burkholderiales, Pseudomonadales, Enterobacteriales, Actinomycetales, and Bifidobacteriales) in a single honey specimen. 相似文献
162.
Cattaneo C Cantatore A Ciaffi R Gibelli D Cigada A De Angelis D Sala R 《Journal of forensic sciences》2012,57(1):182-187
Identification from video surveillance systems is frequently requested in forensic practice. The "3D-2D" comparison has proven to be reliable in assessing identification but still requires standardization; this study concerns the validation of the 3D-2D profile comparison. The 3D models of the faces of five individuals were compared with photographs from the same subjects as well as from another 45 individuals. The difference in area and distance between maxima (glabella, tip of nose, fore point of upper and lower lips, pogonion) and minima points (selion, subnasale, stomion, suprapogonion) were measured. The highest difference in area between the 3D model and the 2D image was between 43 and 133 mm(2) in the five matches, always greater than 157 mm(2) in mismatches; the mean distance between the points was greater than 1.96 mm in mismatches, <1.9 mm in five matches (p < 0.05). These results indicate that this difference in areas may point toward a manner of distinguishing "correct" from "incorrect" matches. 相似文献
163.
Balbino MA de Menezes MM Eleotério IC Saczk AA Okumura LL Tristão HM de Oliveira MF 《Forensic science international》2012,219(1-3):29-32
Teeth are recently drawing attention for their potential as biological modeling investigation samples due to their ability to be collected and their slow substance metabolism. There is no active metabolism of elements after the completion of dentin. Dentin is surrounded by enamel and cementum, and is not affected by the oral environment. Therefore, the amount of trace elements in dentin may change with age, and this is considered to be a reliable biological load index. The objectives in this study are to demonstrate concentrations of elements in the dentin of healthy Japanese subjects by sex and age, and to reveal the relationship between element levels and age. 121 healthy teeth samples were extracted due to periodontal disease or orthodontic treatment. Each tooth was sliced from the crown to the root apex into 0.5-1mm thickness, then enamel, cementum, and the pulp were removed; the dentins were used as samples. The concentration of 10 trace elements (B, Mn, Co, Cu, Zn, Rb, Sr, Mo, Cd, and Pb) in the dentin was measured using inductively coupled plasma mass spectrometer (ICP-MS). The differences Co and Pb in the dentin between men and women were significant (p<0.01). Significant positive correlation was observed between B, Co, Cu, Zn, Sr and Pb concentrations in the dentin and age (p<0.001). The results of the present study suggest that human dentin is an appropriate substance for relativity with sex and age at further future research. 相似文献
164.
Barrot C Simili C Sánchez C Brandt-Casadevall C González-Martín A Xifró A Ortega M Huguet E Corbella J Gené M 《Journal of forensic sciences》2007,52(2):504-506
Population: Amerindian populations: Huastecos (n=97), Otomies de la Sierra (n=41), Otomies del Valle (n=40), and Tepehuas (n=13). 相似文献
165.
Child sexual abuse: an Italian perspective 总被引:1,自引:0,他引:1
Cattaneo C Ruspa M Motta T Gentilomo A Scagnelli C 《The American journal of forensic medicine and pathology》2007,28(2):163-167
The problem of child sexual abuse is a growing reality in Italy. The experience of over 200 children seen by the SVS (Soccorso Violenza Sessuale) Centre in Milan (the first Italian large-scale study) may give more information on the European situation. This study is a retrospective study based on information contained in the files of children beneath the age of 14 seen at the SVS Centre between May 1996 and May 2003, who arrived with a suspicion of child sexual abuse. Over 80% of all cases fell within the normal-aspecific category according to Adams' 2001 classification. This first Italian survey, though not based on substantiated cases but only on cases of suspected sexual abuse, supplies a perspective on a large northern European city such as Milan. Data seem similar to those published in other non-European studies, particularly as regards clinical signs observed. Thus, the results of this study, with all their limitations, start to give a perspective on the frequency and type of child population reaching this Italian center, what the scenarios are, what signs the children present and how infrequent it is to find clinical anogenital signs concerning for sexual abuse. 相似文献
166.
Chinese analysts view the US military not only as a model for emulation but also as a serious threat given its strengths in high tech weapons and equipment, power projection, and unparalleled ability to conduct information-intensive joint combat operations. Yet they also see many of the capabilities the US military relies upon to execute these operations – most notably forward bases, space capabilities, and computer networks and information technology systems – as potentially vulnerable to disruption. Accordingly, China has developed capabilities designed to deter or counter US military intervention in areas close to China. This poses two interrelated challenges for the United States: maintaining its military advantage in an era of rapid technological change and preserving deterrence against growing Chinese ambitions in Asia. 相似文献
167.
Cristina Flesher Fominaya 《South European society & politics》2015,20(4):465-485
European anti-austerity movements are challenging fundamental assumptions about the role of the market and the state. In Spain, the twin claims of the movements are a demand for ‘real democracy’ and an end to austerity measures resulting from the global financial crisis. I argue that these demands are intertwined. Using critical discourse analysis, I explore the Platform of Those Affected by Mortgages' controversial escrache campaign to show how social movements actively resisting austerity measures transcend the specific issues around which they mobilise to contest hegemonic definitions of crisis and of democracy, laying the groundwork for the reconfiguration of Spain's political landscape. 相似文献
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170.
Cristina Lafont 《Ratio juris》2004,17(1):27-51
Abstract. In this paper I analyze the tension between realism and antirealism at the basis of Kantian constructivism. This tension generates a conflictive account of the source of the validity of social norms. On the one hand, the claim to moral objectivity characteristic of Kantian moral theories makes the validity of norms depend on realist assumptions concerning the existence of shared fundamental interests among all rational human beings. I illustrate this claim through a comparison of the approaches of Rawls, Habermas and Scanlon. On the other hand, however, objections to moral realism motivate many Kantian constructivists to endorse the antirealist claim that reasonable agreement is the source of the validity of social norms. After analyzing the difficulties in the latter strategy, I try to show how a balance between the realist and antirealist elements of Kantian constructivism can be reached by drawing a sharper distinction between the justice and the legitimacy of social norms. 相似文献