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131.
132.
The ‘reflexive turn’ transcended disciplinary boundaries within the social sciences. Feminist scholars in particular have taken up its core concerns, establishing a wide-ranging literature on reflexivity in feminist theory and practice. In this paper, I contribute to this scholarship by deconstructing the ‘story’ of my own research as a white, genderqueer, masculine-presenting researcher in Ghana. This deconstruction is based on thirteen months of field research exploring LGBT activism in the capital city of Accra. Using a series of ethnographic vignettes, I examine questions of queer subjectivity, embodiment and self/Other dynamics in the research encounter. Specifically, I interrogate what a reflexive concern for power relations means when researchers share moments of commonality and difference with research participants, here in relation to axes of gender, sexuality, race and class. Finally, I explore the challenge of theorising resistance in light of feminist postcolonial critiques of the politics of representation. I conclude that it is only by locating these tensions and dissonances in the foreground of our inquiries that reflexivity becomes meaningful as a way of rendering knowledge production more accountable and transparent, of practising feminist solidarity, and of excavating our own queer research journeys. 相似文献
133.
Since the Moroccan invasion in 1975, official reports on visits to Sahrawi refugee camps by international aid agencies and faith-based groups consistently reflect an overwhelming impression of gender equality in Sahrawi society. As a result, the space of the Sahrawi refugee camps in Algeria and, by external association, Sahrawi society and Western Sahara as a nation-in-exile is constructed as ‘ideal’ (Fiddian-Qasmiyeh, 2010, p. 67). I suggest that the ‘feminist nationalism’ of the Sahrawi nation-in-exile is one that is employed strategically by internal representatives of the Popular Front for the Liberation of Saguia el-Hamra and Río de Oro (POLISARIO), the Sahrawi Arab Democratic Republic (SADR) and the National Union of Sahrawi Women (NUSW), and by external actors from international aid agencies and also the colonial Moroccan state. The international attention paid to the active role of certain women in Sahrawi refugee camps makes ‘Other’ Sahrawi invisible, such as children, young women, mothers, men, people of lower socio-economic statuses, (‘liberated’) slave classes and refugees who are not of Sahrawi background. According to Elena Fiddian-Qasmiyeh (ibid.), it also creates a discourse of ‘good’, ‘ideal’ refugees who are reluctant to complain, in contrast to ‘Other refugees’. This feminisation allows the international community not to take the Sahrawi call for independence seriously and reproduces the myth of Sahrawi refugees as naturally non-violent (read feminine) and therefore ‘ideal’. The myth of non-violence accompanied by claims of Sahrawi secularity is also used to distance Western Sahara from ‘African’, ‘Arab’ and ‘Islamic’, to reaffirm racialised and gendered discourses that associate Islam with terrorism and situate both in the Arab/Muslim East. These binaries make invisible the violence that Sahrawis experience as a result of the gendered constructions of both internal and external actors, and silence voices of dissent and frustration with the more than forty years of waiting to return home. 相似文献
134.
Document examiners sometimes eliminate writers on the basis of differences which are given too much weight. This article is an attempt to explain some conditions whereby differences in the writing of one individual are misinterpreted as significant differences, when they are actually caused by conditions which are unknown to the examiner. 相似文献
135.
Postmortem stability of DNA 总被引:11,自引:0,他引:11
High-molecular-weight DNA was recovered postmortem in sufficient quantities from various human organ tissues as well as from blood, although not all organs were equally well suitable. Good DNA stability was found in brain cortex, lymph nodes and psoas muscle over a period of three weeks postmortem. Spleen and kidney showed good DNA stability up to five days postmortem but after longer periods, rapid degradation was observed. Yields of DNA from blood were not consistent because of the non homogeneity of samples. Blood clots were rich with DNA. Generally, the amount of degraded DNA correlated directly with the duration of the postmortem period. However in some cases, DNA degradation was already prominent after a short period. However in some cases, DNA degradation was already prominent after a short period. Case histories showed that high environmental temperature at the site of death and/or infectious diseases prior to death were the main factors for rapid autolysis. Gradual disappearance to complete loss of the long fragments (15-23 kb) was observed in DNA fingerprinting using the minisatellite probe 33.15. No extra-bands were noted, thus excluding erroneous conclusions. However, evidentiary value of older samples was lower. 相似文献
136.
A method for the routine profiling of illicit heroin samples received in casework has been developed which depends on simple and straightforward sample pretreatment, followed by gas chromatography on a capillary column using flame-ionization detection. The factors affecting the choice of each aspect of the procedure are discussed, as are the statistical data for sampling and the chromatography. Components of illicit heroin derived from opium and other adulterants have been identified. The significance of data from samples examined in 1986 is discussed. 相似文献
137.
Headspace gas chromatography was used to determine the concentration of ethanol and methanol in blood samples from 519 individuals suspected of drinking and driving in Sweden where the legal alcohol limit is 0.50 mg/g in whole blood (11 mmol/l). The concentration of ethanol in blood ranged from 0.01 to 3.52 mg/g with a mean of 1.83 +/- 0.82 mg/g (+/- S.D.). The frequency distribution was symmetrical about the mean but deviated from normality. A plot of the same data on normal probability paper indicated that it might be composed of two subpopulations (bimodal). The concentration of methanol in the same blood specimens ranged from 1 to 23 mg/l with a mean of 7.3 +/- 3.6 mg/l (+/- S.D.) and this distribution was markedly skew (+). The concentration of ethanol (x) and methanol (y) were positively correlated (r = 0.47, P less than 0.001) and implies that 22% (r2) of the variance in blood-methanol can be attributed to its linear regression on blood-ethanol. The regression equation was y = 3.6 + 2.1 x and the standard error estimate was 0.32 mg/l. This large scatter precludes making reliable estimates of blood-methanol concentration from measurements of blood-ethanol concentration and the regression equation. But higher blood-methanol concentrations are definitely associated with higher blood-ethanol in this sample of Swedish drinking drivers. Frequent exposure to methanol and its toxic products of metabolism, formaldehyde and formic acid, might constitute an additional health risk associated with heavy drinking in predisposed individuals. The determination of methanol in blood of drinking drivers in addition to ethanol could indicate long-standing ethanol intoxication and therefore potential problem drinkers or alcoholics. 相似文献
138.
T Karlsmark H K Thomsen L Danielsen O Aalund O Nielsen K G Nielsen I K Genefke 《Forensic science international》1988,39(2):175-188
In order to establish pathological evidence in dermis for distinguishing between sequelae of electrical torture and those of other superficial injuries, the skin of eleven fully anaesthetized Danish Landrace pigs have been exposed to heat and electrical energy from either 50 Hz alternating current (a.c.) or direct current (d.c.) via 12 mm large contact knobs or via a pointed 0.5 mm large electrode (only 50 Hz a.c.). The lesions have been examined from 1 to 126 days after the injury. While heat lesions exposed to energy lower than 60 joule only gave minor changes, heat lesions exposed to more than 60 joule showed changes in both collagen fibres (basophilic or eosinophilic fibres without any birefringence or coarse cross-striation in polarized light, respectively) and dermal cells (granular cytoplasm). Areas exposed to 50 Hz a.c. via 0.5 mm. electrode showed basophilic collagen fibres and in a few biopsies on day 7 calcium salts on collagen fibres. Using 12 mm large electrodes the changes were minor, but basophilic and eosinophilic collagen fibres with no birefringence or with fine/coarse cross-striation respectively were seen. Even cells with 'vesicular nuclei' were seen on day 1 and 2 after the injury. The changes in the anode area showed resemblance to that of heat lesions (basophilic collagen fibres). Eosinophilic collagen fibres with fine densely spaced cross-striation in polarized light and 'vesicular nuclei' as well as collagen fibres with calcium salts were seen in the cathode lesions. It is concluded that the dermal changes in the cathode area are specific for electrical injury from day 1 to 14. However, earlier studies have demonstrated dermal changes specific for electrical injury at day 0 and the presence of calcified collagen fibres up to 2 months after injury. The dermal changes in anode lesions were non specific and could not be differentiated from those found in heat lesions. Alternating current lesions (50 Hz) were specific from day 1 to day 7, when the pointed electrode was used, but only in a few days when the energy was transferred via the 12-mm electrodes. 相似文献
139.
The polymorphism of the human vitamin D binding protein (Gc system) was investigated in a total of 149 sera from unrelated healthy Egyptians residing in Tanta City, Gharbiya Governorate, Nile Delta of Egypt, using isoelectric focusing (IEF) in thin-layer polyacrylamide gel followed by immunoblotting. The estimated gene frequencies were Gc1s = 0.540, Gc1f = 0.242 and Gc2 = 0.218. 相似文献
140.
A method has been developed for the rapid extraction of cocaine and benzoylecgonine from post-mortem blood and urine samples. Solid phase columns containing C8 packing material gave clean, emulsion free extracts from body fluids. The total time for each extraction was approx. 10 min and the system has the capacity for the simultaneous extraction of up to 10 samples. Urine can be extracted directly, blood samples were sonicated before extraction to allow for their easy passage through the columns. The method gave excellent recoveries of cocaine (98-100%) from spiked samples at concentrations of between 50 ng/ml and 10 micrograms/ml. Analysis of the extracts was by high performance liquid chromatography (HPLC). 相似文献