共查询到20条相似文献,搜索用时 31 毫秒
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Pl Nyíri 《The Australian journal of anthropology》2006,17(1):32-46
Public education remains the nation‐state's foremost instrument of forging citizens. But the emergence of ‘international education’, a system explicitly based on the ideology of globality and outside the purview of national curricula, provides a way to circumvent the citizen‐making machine. This article, based on fieldwork among Chinese secondary school students in Hungary, considers the interaction between ‘international education’ and transnational migrants in a nation‐state whose public education, as the state itself, has little interest in the ‘integration’ of non‐natives. 相似文献
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Guy Attewell 《Culture, medicine and psychiatry》2014,38(3):369-386
This is a study of the emergence of new institutional arenas for ayurveda and yunani medicine, collectivized at the time as ‘indigenous medicine,’ in a semi-autonomous State (Mysore) in late colonial India. The study argues that the characteristic dimensions of this process were compromise and misalignment between ideals of governance and modes of pedagogy and practice. Running counter to a narrative that the Princely States such as Mysore were instrumental for the ‘preservation’ of ayurveda, this study analyzes the process of negotiation and struggle between a variety of actors engaged with shaping the direction of institutionalized ‘indigenous medicine’. In examining the entanglements over the priorities of the state administration and the conflicting desires and ideals of protagonists, the study problematizes the idea of studying the encounter between the ‘state’ and ‘indigenous medicine,’ in order rather to highlight their co-production and the tensions which were generated in the process. While institution-making for ayurveda and yunani in Mysore State assumed distinctive translocal forms, themes of divergence that were unresolved during the time of this study, over the role of the state, the politics of validation, appropriate curricula and pedagogy, and their relation to practice and employment, continue to inform the trajectories of state-directed health provision through ‘indigenous medicine’ on larger scales [India, health-care, ayurveda, yunani, education]. 相似文献
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E. Duvall 《Cytopathology》2008,19(3):167-171
Objective: To determine how the ‘borderline’ category was used by cytopathologists in the UK when reporting cervical smears. Methods: A questionnaire was sent by email to members of the British Society for Clinical Cytology. Results: There is wide variation in the use of the ‘borderline’ category in the UK but the majority of respondents (77.6%) used it when reporting smears that were either on the borderline between negative and low grade squamous dyskaryosis (‘borderline ?low grade’), or on the borderline between negative and high grade squamous dyskaryosis (‘borderline ?high grade’), or on the borderline between negative and glandular dyskaryosis ‘borderline ?glandular dyskaryosis’). A significant minority (15.7%), however, did not use ‘borderline’ when reporting smears that showed an abnormality that was possibly high grade squamous dyskaryosis. A majority (79.1%) of respondents thought that it would be useful to have separate reporting categories for ‘borderline ?low grade’ and ‘borderline ?high grade’. Conclusions: There is diversity in the use of the category ‘borderline’ in the UK. The proposed revised BSCC terminology with separate categories for borderline ?low grade, borderline ?high grades and borderline ? glandular dyskaryosis reflects the opinion of the majority of respondents to the questionnaire. 相似文献
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Correction methods currently used in ‘binding’ experiments have been compared and a new approach is proposed. These methods have been applied to data on the ‘binding’ of GABA to a ‘synaptosomal-mitochondrial’ fraction of rat cerebral cortex under various conditions. Results indicated that values for ‘corrected binding’ can differ greatly, depending upon the method employed. Calculations based on data obtained when using a high concentration of unlabelled GABA to displace ‘specific’ binding of [3H]GABA (‘cold ligand method’) under-estimated the binding, because this method neglects the existence of a biochemically-inert space which exists within the pellet even at 0°C and which traps labelled ligand. The other correction method, in which an inert labelled substance (e.g. sucrose) is used to measure the portion of the pellet occupied by trapped supernatant fluid (‘sucrose space method’), is more accurate, but does not take into account the amount of ligand that may be non-specifically bound to the particulate portion of the pellet. The error with this method is small for ‘high-affinity’ ligand-receptor systems, but may be quite large for lower affinity systems. A method which takes into consideration both the inert space of the pellet and ligand that is non-specifically bound to the pellet (‘fully corrected method’) is proposed. The three correction methods have been applied to a study of the kinetic parameters of GABA binding to a ‘synaptosomal-mitochondrial’ fraction of rat cerebral cortex in the presence and absence of the GABA inhibitor, bicuculline-methiodide. In some cases, the results showed qualitative as well as large quantitative differences, depending on the correction method employed. 相似文献
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Hans Steinmüller 《The Australian journal of anthropology》2011,22(2):220-235
Starting with Arthur Smith’s metaphor of the ‘peephole method’, this article explores the issues of ruralism and awkwardness which underlie much ethnographic fieldwork in rural China. In the first part, the continuing influence of ruralism—the idea that the Chinese countryside represents the ‘real’ China—is discussed. This idea is based on a radical conceptual separation of the countryside and the city, which denies modern everydayness to the countryside. If we accept that the modern everyday is now present in rural China and that ordinary people are aware of ruralism and its opposites (urbanism and modernity), we need to find research methods suitable to address the entanglement and the social uses of ruralist and modernist representations in everyday life. In the second part of the article, I argue that the ‘reflective peephole method’ could be such a method. Starting from the awkwardness I felt in my own fieldwork in south‐western Hubei Province, I argue that the dilemmas of the ‘peephole method’ might be a good starting point for reflecting on the intensified ambiguity of moral discourse and action in contemporary rural China. 相似文献
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Inheritance of resistance to lettuce root aphid in the lettuce cultivars 'Avoncrisp' and 'Lakeland" 总被引:1,自引:0,他引:1
The inheritance of resistance in two lettuce cultivars to lettuce root aphid, Pemphigus bursarius, was studied in a series of laboratory and field experiments at Wellesbourne between 1989 and 1992. A source of total resistance in the cv. ‘Avoncrisp’ which is linked to the downy mildew resistance gene Dm6, was shown to be governed by a single dominant gene. There were no maternal effects evident in the inheritance of this resistance. The basis of the high level of resistance which exists in the cv. ‘Lakeland’ (formerly known as ‘Jubilee’) was also shown to be controlled by the same dominant gene. The linkage between Dm6 and root aphid resistance was broken in ‘Lakeland’ as this cultivar does not possess the Dm6 gene. The linkage was presumably broken when the original cross between the parents of cv. ‘Lakeland’, ‘Calmar’ and ‘Avoncrisp’ was made. Under laboratory conditions small numbers of aphids commence development on cv. ‘Lakeland’ but colonies fail to develop and under field conditions the resistance provides adequate Protectión against the pest. The resistance in both ‘Avoncrisp’ and ‘Lakeland’ was effective against a population of lettuce root aphid collected from an endive crop in southern France as well as being effective against the Wellesbourne population of this aphid. 相似文献
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《Cell biology international reports》1981,5(7):667-673
A ‘fine’ freeze-fracture pattern is described with rows of ‘particles’ separated by about 55 Å in comparison to about 110 Å measured between rows on the usual ‘coarse’ pattern. The latter one is regarded to be a result of an incomplete separation of the lipid leaflets and it is suggested that the ‘coarse pattern particles’ contain some lipid molecules trapped between the trimers. 相似文献
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Vasanti Deshpande Mala Rao Sulbha Keskar Chittra Mishra 《Enzyme and microbial technology》1984,6(8):371-374
The endo-1,4-β-d-glucanase [cellulase, 1,4-(1,3:1,4)-β-d-glucan 4-glucanohydrolase, EC 3.2.1.4] activity of two-day old culture filtrates of Penicillium janthinellum has been enhanced four-fold by incubating with a 10-day old culture filtrate of Penicillium funiculosum grown on the same medium. An inactive protein isolated by fractionation of two-day old culture filtrate of P. janthinellum using preparative isoelectric focusing, showed 30- to 50-fold enhancement of endo-1,4-β-d-glucanase activity. This fraction has been designated the ‘procellulase’ in the present paper. The purity of the procellulase was confirmed by analytical isoelectric focusing and sodium dodecyl sulphate-polyacrylamide gel electrophoresis. It had a molecular weight of 68 000 and an isoelectric point of pH 3.7. 相似文献
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P.M. Dey 《Phytochemistry》1985,25(1):51-53
High levels of ‘alkaline’ invertase activity occur in dormant mung bean seeds. During germination this activity decreases rapidly and is replaced by high ‘acid’ invertase activity. Cycloheximide prevented the formation of the latter activity and also inhibited germination. It is suggested that de novo synthesis of ‘acid’ invertase occurs during germination. Both enzymes bind to concanavalin A and, hence, are presumed to be glycoproteins. Affinity-purified enzyme samples show similar ratios of ‘acid’ and ‘alkaline’ invertase activities to the crude preparations indicating that specific enzyme inhibitors or activators are probably not involved in controlling the activities in vivo. 相似文献
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The aim of this work was to establish the optimum acoustic characterisation approach and insonation transmit beam parameters for subharmonic signal generation with ‘native’ and ‘altered’ populations of a commonly-used microbubble contrast agent. Dynamic contrast-enhanced (DCE) ultrasound is a non-invasive method of imaging the microvasculature, typically implemented using harmonic imaging. Subharmonic imaging, in which echoes at half the fundamental frequency are detected, detects signals which are generated by the ultrasound contrast agents (UCAs) but not by tissue. However, optimal transmission parameters and furthermore, the optimum acoustic characterisation method have not been established. The subharmonic response of ‘native’ and ‘altered’ UCA, altered through decantation, was investigated at transmit centre frequencies 1.8–5 MHz and pulse lengths 1–8 cycles. The ‘altered’ UCA had reduced polydispersity (1–4 µm: 82% bubble volume), compared to ‘native’ (4–10 µm: 57% bubble volume). A custom-built narrow-band acoustic characterisation system was found to be more appropriate for acoustic characterisation compared to the commonly used broadband pulse-echo approach. Both UCA generated the highest subharmonic signal at pulse length of 3-cycles. The maximum ‘native’ subharmonic signal was generated at a transmit centre frequency of 1.9 MHz, corresponding to a subharmonic at 0.95 MHz. This optimal frequency increased in the ‘altered’ population to 2.3–2.5 MHz, bringing the subharmonic above 1 MHz and hence into a range amenable to clinical abdominal imaging transducers. The use of subharmonic signal detection coupled with a modified UCA size distribution has potential to significantly improve the quantification sensitivity and accuracy of DCE ultrasound imaging. 相似文献
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Tonic immobility was induced in adult laying hens using different methods and substrates, factors which have shown great variety of response in previous work. The fact that topic immobility was induced in every situation confirms the robust nature of this phenomenon. Placing hens on their backs and restraining them in a U-shaped wooden cradle covered with cloth was the most reliable and consistent method. Not only was the duration of response greatest when this method was used, but less handling, with its possible stressful effects, was required to induce it. There were no significant differences in the latency to the first head movement or in the duration of immobility between adolescent ‘T’ (Rhode Island Red × Light Sussex) and ‘S’ (White Leghorn) lines but both these characteristics were considerably shorter in the ‘J’ line birds (Brown Leghorn). There were no significant sex differences in the duration of tonic immobility but male ‘T’ and ‘S’ line birds showed greater latencies to the first head movement and fewer subsequent alert head movements than females. These results are discussed in terms of sex and strain differences in fearfulness.The varied nomenclature used to describe the immobility reaction is discussed and an alternative term “righting time” is proposed. It is further suggested that the immobility response consists of an inhibitory and an alert stage. 相似文献
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Correlation between the different therapeutic properties of Chinese medicinal herbs and delayed luminescence
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Jingxiang Pang Jialei Fu Meina Yang Xiaolei Zhao Eduard van Wijk Mei Wang Hua Fan Jinxiang Han 《Luminescence》2016,31(2):323-327
In the practice and principle of Chinese medicine, herbal materials are classified according to their therapeutic properties. ‘Cold’ and ‘heat’ are the most important classes of Chinese medicinal herbs according to the theory of traditional Chinese medicine (TCM). In this work, delayed luminescence (DL) was measured for different samples of Chinese medicinal herbs using a sensitive photon multiplier detection system. A comparison of DL parameters, including mean intensity and statistic entropy, was undertaken to discriminate between the ‘cold’ and ‘heat’ properties of Chinese medicinal herbs. The results suggest that there are significant differences in mean intensity and statistic entropy and using this method combined with statistical analysis may provide novel parameters for the characterization of Chinese medicinal herbs in relation to their energetic properties. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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解决茶树缺乏高效、稳定的遗传转化体系问题,建立了一种基于根癌农杆菌介导的茶树原位转化转基因方法,为茶树基因功能研究和种质创新奠定坚实的基础。以茶树品种‘铁观音’、‘白叶1号’和‘龙井43’的实生幼苗为受体材料,进行去顶芽和腋芽处理。利用根癌农杆菌菌液侵染实生苗伤口,通过抗性筛选获得再生芽,经分子生物学鉴定后,采用短穗扦插法获得茶树转基因植株。结果表明,再生芽中GUS(β-glucuronidase)和HYG(hygromycin)标记基因经多次PCR检测均为阳性,经测序验证PCR产物序列与标记基因序列一致。‘铁观音’、‘白叶1号’和‘龙井43’的转化率分别为8.14%、2.99%和2.53%。建立了不依赖茶树组织培养的原位转化转基因体系,具有操作简便、转化率高、成本低、试验周期短的特点。 相似文献
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Clara Cristina Jost Mafra 《Ethnos》2013,78(4):448-468
Taking into account the composition of Pentecostalism – a mixture of, on one side, a Protestant tradition that allows the constitution of the ‘sincere person’, and, on the other side, the enchanted aspects of personhood – what happens when this message is disseminated in a context with a long Catholic tradition by ‘translators’ socialized in the Catholic culture; in other words, by people with a particular interpretation of the Protestant tradition? In this article, the author explores this question and shows how the Catholic framing impacts the arrangements for accommodating the semiotic ideologies of ‘sincerity’ and ‘saintliness’ within Pentecostal religiosity, resulting in singular manifestations of the collective project and of the regional Christian Person. 相似文献