1,244 research outputs found

    Die integrasie van humoristiese tekste by taalonderwys om studente se emosionele geletterdheid te ontwikkel: ’n gevallestudie

    Get PDF
    The integration of humorous texts in language education to develop students’ emotional literacy: a case study The integration of humorous material in language teaching can be instrumental in the development of emotional literacy, thereby fostering an aesthetic sensitivity in student teachers (as learners) in different social contexts. Texts containing humour can play a significant role in the development of learners’ understanding and appreciation of a language, as well as the cultural heritage it embodies. Furthermore, it offers learners the opportunity to become creatively and imaginatively involved with oral, visual and written texts. The article illustrates how the application of humorous material in the teaching of Afrikaans is not only rooted in responsive education, but complies with the objectives of the South African teaching policy documents. By concentrating on a literature review of research studies, the authors point out the correlation between humour and various factors that influence learners’ and students’ affective behaviour in the context of the language classroom. Particular reference is made to research results indicating that the use of humour induces a more positive attitude, while also motivating students (as learners) to participate constructively in language activities. Attention is also paid to the relationship between different personality types (based on cognitive style) and anxiety. Moreover, the established link between humour and anxiety justifies the inclusion of humorous texts to reduce language-related anxiety. Ultimately the research serves to support the authors’ argument in favour of incorporating humorous material in the teaching of Afrikaans, while several (practical) teaching strategies are suggested. The authors hope to enhance the educational value by pursuing a holistic approach to language teaching

    Mortality related to caesarean section in rural Matebeleland North Province, Zimbabwe

    Get PDF
    A CAJM article on Cesarean birth related death in rural Zimbabwe.Maternal mortality ratio in low income countries is 100-500 times higher than in rich countries; compare the extremes: Zimbabwe with 1100 maternal deaths/100 000 live births and Sweden with 2/100 000.' Mortality rates related to caesarean section (CS) are in the same range, 0.5-2% (1:2001:50) in poor income countries and 0.01-0.02% (1:10 000-1:5 000)2 in the richer parts of the world. Mortality is greater in women who have more than one CS compared to those with a first CS, because of increasing age and therefore hi gher prevalence of general medical conditions, as well higher incidence of complications such as ruptured uterus (risk 0.2-1.5% after low transverse incision) and placenta praevia or accreta (risks 1.1-3.0 and 5-10 times greater than in an unscarred uterus).2 Compared to vaginal birth maternal mortality related to CS was shown to be 17 times higher in a medical audit in Midlands province in Zimbabwe

    Soil biological quality of grassland fertilized with adjusted cattle manure slurries in comparison with organic and inorganic fertilizers

    Get PDF
    We studied the effect of five fertilizers (including two adjusted manure slurries) and an untreated control on soil biota and explored the effect on the ecosystem services they provided. Our results suggest that the available N (NO3- and NH4+) in the soil plays a central role in the effect of fertilizers on nematodes and microorganisms. Microorganisms are affected directly through nutrient availability and indirectly through grass root mass. Nematodes are affected indirectly through microbial biomass and grass root mass. A lower amount of available N in the treatment with inorganic fertilizer was linked to a higher root mass and a higher abundance and proportion of herbivorous nematodes. A higher amount of available N in the organic fertilizer treatments resulted in a twofold higher bacterial activity (measured as bacterial growth rate, viz. thymidine incorporation), a higher proportion of bacterivorous nematodes, a 30% higher potential N mineralization (aerobic incubation), and 25–50% more potentially mineralizable N (anaerobic incubation). Compared to inorganic fertilizer, organic fertilization increased the C total, the N total, the activity of decomposers, and the supply of nutrients via the soil food web. Within the group of organic fertilizers, there was no significant difference in C total, abundances of soil biota, and the potential N mineralization rate. There were no indications that farmyard manure or the adjusted manure slurries provided the ecosystem service “supply of nutrients” better than normal manure slurry. Normal manure slurry provided the highest bacterial activity and the highest amount of mineralizable N and it was the only fertilizer resulting in a positive trend in grass yield over the years 2000–2005. The number of earthworm burrows was higher in the treatments with organic fertilizers compared to the one with the inorganic fertilizer, which suggests that organic fertilizers stimulate the ecosystem service of water regulation more than inorganic fertilizer. The trend towards higher epigeic earthworm numbers with application of farmyard manure and one of the adjusted manure slurries, combined with the negative relation between epigeic earthworms and bulk density and a significantly lower penetration resistance in the same fertilizer types, is preliminary evidence that these two organic fertilizer types contribute more to the service of soil structure maintenance than inorganic fertilize

    Effective Crack-Propagation Resistance Under Monotonic And Cyclic Loading

    Get PDF
    Crack propagation under monotonic and cyclic loading was investigated in alumina-epoxy composite specimens, produced via a multi-step infiltration technique. Under monotonic loading, an increase in effective fracture toughness was observed, which was attributed to the development of a bridging zone behind the crack-tip. A similar increase in crack propagation resistance was observed under cyclic loading, though this was more difficult to quantify. This was achieved approximately using an adjustment based on the Paris-law relation. This adjustment approach is described in this paper, and is also applied to fatigue results for graded composite specimens, in which the increase in crack-growth resistance with crack-extension is accompanied by a spatial variation in intrinsic and extrinsic crack-growth resistance

    Against the rule of man: the Confucian and Western traditions of good administration

    Get PDF
    This article investigates the Confucian and Western traditions specifically with regard to the relation between morality, law and good administration. It is argued that the common opposition between the rule of man and the rule of law as reflecting the basic difference between the two traditions is inadequate. Confucianism can be better characterized positively as the rule of morality. It should also be noticed that ?the rule of law? is increasingly being introduced into the Chinese administration. Similarly, even though the Western tradition can be summarized in terms of the rule of law, it is acknowledged that ?the rule of man? cannot be avoided, and that morality is important. Both traditions oppose the rule of man, in as far as it refers to someone acting out his selfish preferences. It is concluded that good administration requires officials with both good morality and respect for the law; whether this is a kind of convergence is a matter of debate.FGW – Publications without University Leiden contrac

    A systematic correlation between two-dimensional flow topology and the abstract statistics of turbulence

    Full text link
    Velocity differences in the direct enstrophy cascade of two-dimensional turbulence are correlated with the underlying flow topology. The statistics of the transverse and longitudinal velocity differences are found to be governed by different structures. The wings of the transverse distribution are dominated by strong vortex centers, whereas, the tails of the longitudinal differences are dominated by saddles. Viewed in the framework of earlier theoretical work this result suggests that the transfer of enstrophy to smaller scales is accomplished in regions of the flow dominated by saddles.Comment: 4 pages, 4 figure

    Random close packing of granular matter

    Full text link
    We propose an interpretation of the random close packing of granular materials as a phase transition, and discuss the possibility of experimental verification.Comment: 6 page

    Immunohistochemical categorisation of ductal carcinoma in situ of the breast

    Get PDF
    The aim of this study is to analyse whether immunohistochemistry (IHC) applying a broad set of markers could be used to categorise ductal carcinoma in situ (DCIS) of the breast in distinct subgroups corresponding to the recently defined molecular categories of invasive carcinoma. Immunohistochemistry of pure DCIS cases constructed in tissue arrays was performed with 16 markers (oestrogen receptor (ER), progesterone receptor (PR), androgen receptor (AR), Bcl-2, p53, Her2, insulin-like growth factor receptor, E-cadherin, epithelial membrane antigen (EMA), CA125, keratins 5/6, 14, 19, epidermal growth factor receptor, S100, and CD31). Results in 163 cases were analysed by unsupervised hierarchical clustering. Histological classification was performed by review of whole tissue sections and identified 36 well-, 55 intermediately, and 72 poorly differentiated DCISs. Unsupervised hierarchical cluster analysis categorised DCIS into two major groups that could be further subdivided into subgroups based on the expression of six markers (ER, PR, AR, Bcl-2, p53, and Her2). In the major predominantly ER/Bcl-2-positive (luminal) group, three subgroups (AR-positive (n=33), AR-negative (n=40), and mixed (n=34)) could be identified and included 34 well-differentiated DCISs. Within the major predominantly ER/Bcl-2-negative (nonluminal) group, a Her2-positive subgroup (n=34) was characterised by 31 poorly differentiated lesions. Eight triple-negative lesions, including one positive for keratin 5/6 and two positive for p53, were encountered. Intermediately differentiated DCIS shared a comparable IHC staining pattern with well-differentiated DCIS that was distinct from poorly differentiated DCIS (P<0.001). Ductal carcinoma in situ could be categorised by IHC into two major groups and five subgroups using six markers. Morphologically, intermediately differentiated DCIS seems to have more biological similarities with well-differentiated lesions as compared to poorly differentiated lesions

    Implications of the new MRI-based rectum definition according to the sigmoid take-off:multicentre cohort study

    Get PDF
    Background: The introduction of the sigmoid take-off definition might lead to a shift from rectal cancers to sigmoid cancers. The aim of this retrospective cohort study was to determine the clinical impact of the new definition. Methods: In this multicentre retrospective cohort study, patients were included if they underwent an elective, curative total mesorectal excision for non-metastasized rectal cancer between January 2015 and December 2017, were registered in the Dutch Colorectal Audit as having a rectal cancer according to the previous definition, and if MRI was available. All selected rectal cancer cases were reassessed using the sigmoid take-off definition. The primary outcome was the number of patients reassessed with a sigmoid cancer. Secondary outcomes included differences between the newly defined rectal and sigmoid cancer patients in treatment, perioperative results, and 3-year oncological outcomes (overall and disease-free survivals, and local and systemic recurrences). Results: Out of 1742 eligible patients, 1302 rectal cancer patients were included. Of these, 170 (13.1 per cent) were reclassified as having sigmoid cancer. Among these, 93 patients (54.7 per cent) would have been offered another adjuvant or neoadjuvant treatment according to the Dutch guideline. Patients with a sigmoid tumour after reassessment had a lower 30-day postoperative complication rate (33.5 versus 48.3 per cent, P &lt; 0.001), lower reintervention rate (8.8 versus 17.4 per cent, P &lt; 0.007), and a shorter length of stay (a median of 5 days (i.q.r. 4-7) versus a median of 6 days (i.q.r. 5-9), P &lt; 0.001). Three-year oncological outcomes were comparable. Conclusion: Using the anatomical landmark of the sigmoid take-off, 13.1 per cent of the previously classified patients with rectal cancer had sigmoid cancer, and 54.7 per cent of these patients would have been treated differently with regard to neoadjuvant therapy or adjuvant therapy.</p
    • …
    corecore