6,079 research outputs found

    Dynamic Testing Versus Static Load Tests: Five Case Histories

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    Five case histories, where the ultimate bearing capacity of the piles was evaluated by both dynamic measurements and static load tests in Southern Ontario, Canada, are presented. The ultimate bearing capacity of the piles obtained by both methods are compared and found that the ultimate bearing capacities evaluated by dynamic measurements are within 1 to 15 percent of the static load test results analysed by the Offset Limit Load Criterion. In four of the six piles evaluated, the dynamic analysis results are within 10 percent of the static load test results. The correlations have shown that dynamic analysis of pile capacity by dynamic measurements is an excellent alternative to static load test

    Frequent use of paracetamol and risk of allergic disease among women in an Ethiopian population

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    Introduction The hypothesis that paracetamol might increase the risk of asthma and other allergic diseases have gained support from a range of independent studies. However, in studies based in developed countries, the possibility that paracetamol and asthma are associated through aspirin avoidance is difficult to exclude. Objectives To explore this hypothesis among women in a developing country, where we have previously reported aspirin avoidance to be rare. Methods In 2005/6 a population based cohort of 1065 pregnant women was established in Butajira, Ethiopia and baseline demographic data collected. At 3 years post birth, an interview-based questionnaire administered to 945 (94%) of these women collected data on asthma, eczema, and hay fever in the past 12 month, frequency of paracetamol use and potential confounders. Allergen skin tests to Dermatophagoides pteronyssinus and cockroach were also performed. The independent effects of paracetamol use on allergic outcomes were determined using multiple logistic regression analysis. Findings The prevalence of asthma, eczema and hay fever was 1.7%, 0.9% and 3.8% respectively; of any one of these conditions 5.5%, and of allergen sensitization 7.8%. Paracetamol use in the past month was reported by 29%, and associations of borderline significance were seen for eczema (adjusted OR (95% CI) = 8.51 (1.68 to 43.19) for 1–3 tablets and 2.19 (0.36 to 13.38) for ≥4 tablets, compared to no tablets in the past month; overall p = 0.055) and for ‘any allergic condition’ (adjusted OR (95% CI) = 2.73 (1.22 to 6.11) for 1–3 tablets and 1.35 (0.67 to 2.70) for ≥4 tablets compared to 0 in the past month; overall p = 0.071). Conclusions This study provides further cross-sectional evidence that paracetamol use increases the risk of allergic disease

    Zoosporulation of a new Perkinsus species isolated from the gills of the softshell clam Mya arenaria

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    A gill-associated Perkinsus sp. isolated from the softshell clam (Myo arenaria) is described as a new species, P. chesapeaki sp. nov. Examination of the parasite in seawater cultures revealed life cycle stages and zoosporulation processes similar to those described for other species of the genus Perkinsus. Prezoosporangia developed thickened cell walls upon contraction of the cytoplasm and development of a distinctive clear area between the cell wall and the protoplast. Successive bipartition of the protoplast led to the formation of hundred\u27s of zoospores within mature sporangia. Zoospores were released into seawater through one or more discharge tubes, Ultrastructural studies revealed an oblong zoospore possessing two flagella that arose from a concave side located in the upper third of the zoospore body. The anterior flagellum possessed a unilateral array of hair-like structures. A large anterior vacuole and basolateral nucleus dominated the cytoplasm of the zoospore body. The presence of a rudimentary apical complex including an open-sided conoid, rhoptries, micronemes, and subpellicular microtubules were also discerned. Differences in zoospore morphology, and sequence analyses of two genes previously reported, support the designation of the gill-associated Perkinsus from the softshell clam as a new species

    Colonial culinary appropriation: Objectives, factors, and implications

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    The present thesis evaluated the relationship between culinary appropriation and colonialism. The research aimed to examine the historical context of colonial culinary appropriation by reviewing pertinent literature. The purpose of this study was to investigate the phenomenon’s objectives in relation to culinary nationalism, define its factors, and demonstrate its implications. A single case study of Palestinian cuisine was conducted by employing semistructured interviews with 17 participants. The research opted for an interpretive approach followed by thematic analysis. The findings revealed a strong relationship between culinary appropriation and colonialism, as colonial culinary appropriation is a subset of cultural appropriation with a unique set of characteristics and facets. According to the findings of this study, the primary goal of colonial culinary appropriation is to increase the colonizer's sense of culinary nationalism while diminishing that of the colonized. In addition, the results revealed that -narration, commodification, and marketing- serve as the concept's actors, with normalization as its primary implication. It was concluded that food can serve as both a mechanism for the colonizer and a medium for the colonized.A presente tese avaliou a relação entre apropriação culinária e colonialismo. A pesquisa teve como objetivo examinar o contexto histórico da apropriação culinária colonial por meio da revisão da literatura pertinente. O objetivo deste estudo foi investigar os objetivos do fenômeno em relação ao nacionalismo culinário, definir seus fatores e demonstrar suas implicações. Um estudo de caso único da culinária palestina foi realizado por meio de entrevistas semiestruturadas com 17 participantes. A pesquisa optou por uma abordagem interpretativa seguida de análise temática. Os resultados revelaram uma forte relação entre apropriação culinária e colonialismo, pois a apropriação culinária colonial é um subconjunto de apropriação cultural com um conjunto único de características e facetas. De acordo com os resultados deste estudo, o objetivo principal da apropriação culinária colonial é aumentar o sentimento de nacionalismo culinário do colonizador e diminuir o do colonizado. Além disso, os resultados revelaram que -narração, mercantilização e marketing- servem como fatores do conceito, tendo como principal implicação a normalização. Concluiu-se que o alimento pode servir tanto como mecanismo para o colonizador quanto como meio para o colonizado

    Factors Affecting Hemodialysis Patients' Satisfaction with Their Dialysis Therapy

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    Aim. To assess the degree of satisfaction among hemodialysis patients and the factors influencing this satisfaction. Methods. Patients were recruited from 3 Saudi dialysis centers. Demographic data was collected. Using 1 to 10 Likert scale, the patients were asked to rate the overall satisfaction with, and the overall impact of, their dialysis therapy on their lives and to rate the effect of the dialysis therapy on 15 qualities of life domains. Results. 322 patients were recruited (72.6% of the total eligible patients). The mean age was 51.7 years (±15.4); 58% have been on dialysis for >3 years. The mean Charlson Comorbidity Index was 3.2 (±2), and Kt/V was 1.3 (±0.44). The mean satisfaction score was (7.41 ± 2.75) and the mean score of the impact of the dialysis on the patients' lives was 5.32 ± 2.55. Male patients reported worse effect of dialysis on family life, social life, energy, and appetite. Longer period since the commencement of dialysis was associated with adverse effect on finances and energy. Lower level of education was associated with worse dialysis effect on stress, overall health, sexual life, hobbies, and exercise ability. Conclusion. The level of satisfaction is affected by gender, duration on dialysis, educational level, and standard of care given

    Epidemiological Pattern and Management of Pediatric Asthma Review of Ain Shams Pediatric Hospital Chest Clinic Data Cairo, Egypt 1995-2004

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    Background: Pediatric asthma is the leading cause of chronic illness in childhood and has an impact on child's quality of life. Objective: To describe the epidemiological and clinical data of asthmatic children followed up in the Pediatric Chest Clinic Ain Shams University during a 10 year period. Methods: Files of asthmatic children attending the Clinic in the period from1995 to 2004 were selected. Relevant data were extracted and analyzed. Results: Out of 1006 recorded cases, a total of 691 (68.7%) were asthmatic. The proportion of asthmatics among all chest patients attending the clinic was lowest in 2002 being 51.6% and highest in 1995, being 78.3%. Male to female ratio was1.6:1, mean age was 5.27 yrs (SD ±3.65), mean age of onset of disease was 1.84 yrs (SD ± 2.78). Persistent asthma was significantly more prevalent in males p < 0.01. Severe asthma; using the American Thoracic Society Classification, was found in 151 (41.1%) of cases. From 2002, using GINA Guidelines Classification, severe persistent asthma accounted for 13.5%. Episodic attacks were reported by 270 (39%) of patients, nocturnal attacks by 302 of patients (43.7%) and exercise induced asthma in 97 (14%) of patients. Exacerbations occurred in 300 (43.4%) patients after respiratory infections, in 275 (39.8%) on exposure to smoke, in 139 (20%) with special food, in 91 (13.2%) following allergen exposure and 51 (7.4%) on exposure to inhaler sprays. Half of the patients were treated by combination of drugs (49.2%), corticosteroid inhalers in 32.1%, and ß agonists (short acting) in 31.4%. Conclusion & recommendations: Asthma constitutes a main problem in the Pediatric Chest Clinic. Respiratory infection and environmental factors are major exacerbating factors. Better documentation of patient's data and complete record in the files is needed.Keywords: pediatric asthma, epidemiology, pattern, chest clinic, hospital filesEgypt J Pediatr Allergy Immunol 2008; 6(2): 51-5
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