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Four cases (one asymptomatic and three symptomatic) of solitary non-parasitic cysts of the liver are presented. The asymptomatic cysts was an incidental finding at laparotomy. The other three patients presented with abdominal distension, jaundice and malignant transformation respectively. Management of these patients has been discussed and the literature reviewed.  相似文献   
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There is a demand for feasible methodologies that can increase/maintain the levels of health-promoting phytochemicals in horticultural produce, due to strong evidence that these compounds can reduce risk of chronic diseases. Mango (Mangifera indica L.), ranks fifth among the most cultivated fruit crops in the world, is naturally rich in phytochemicals such as lupeol, mangiferin and phenolic acids (e.g. gallic acid, chlorogenic acid and vanillic acid). Yet, there is still much scope for up-regulating the levels of these compounds in mango fruit through manipulation of different preharvest and postharvest practices that affect their biosynthesis and degradation. The process of ripening, harvest maturity, physical and chemical elicitor treatments such as low temperature stress, methyl jasmonate (MeJA), salicylic acid (SA) and nitric oxide (NO) and the availability of enzyme cofactors (Mg2+, Mn2+ and Fe2+) required in terpenoid biosynthesis were identified as potential determinants of the concentration of health-promoting compounds in mango fruit. The effectiveness of these preharvest and postharvest approaches in regulating the levels of lupeol, mangiferin and phenolic acids in the pulp and peel of mango fruit will be discussed. In general spray application of 0.2% iron(II) sulphate (FeSO4) 30 days before harvest, harvest at sprung stage, storage of mature green fruit at 5 °C for 12 days prior to ripening, fumigation of mature green fruit with 10−5 mol L−1 and/or 10−4 mol L−1 MeJA for 24 h or 20 and/or 40 µL L−1 NO for 2 h upregulate the levels of lupeol, mangiferin and phenolic acids in pulp and peel of ripe mango fruit. © 2019 Society of Chemical Industry  相似文献   
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Dextropropoxyphene hydrochloride increases significantly oxygen uptake in whole rat brain homogenates at concentrations of 10(-4), 10(-5), 10(-6) M when using sucrose 0.25 M pH 7.4 as incubation medium. If substrate and cofactors are added to the sucrose, this drug decreases oxygen uptake at 10(-3) M concentration in brain and liver rat homogenates, and it also decreases significantly the P:O quotient of mitochondria in both organs by uncoupling the oxidative phosphorylation.  相似文献   
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The assessment of anger has received increased attention because of growing evidence that anger and hostility are related to heart disease. Research on anger assessment has also been stimulated by the development of psychometric measures for evaluating different facets of anger, such as the State-Trait Anger Expression Inventory (STAXI). In this study, factor analyses of the responses of a large sample of university students to the 44 STAXI items identified 7 factors. Of these, the first 6 factors closely corresponded with the 6 STAXI scales and subscales: State Anger (S-Anger); Trait Anger Temperament and Reaction; and Anger-In, Anger-Out, and Anger-Control. All 10 STAXI S-Anger items had salient loadings on the 1st factor for both sexes; the 7th factor also consisted primarily of S-Anger items. Factor analyses of responses to the 10 S-Anger items clearly confirmed two S-Anger factors for both sexes: Feeling Angry (e.g., "I am furious") and Feel Like Expressing Anger (e.g., "I feel like hitting someone").  相似文献   
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OBJECTIVE: The purpose of this prospective, observational study was to examine the relationship of clinical examination, plain radiograph (XR), triple-phase bone scan (TPBS), and magnetic resonance imaging (MRI) in the investigation of patients presenting with acute shin splints. METHODS: 23 subjects with exercise induced lower leg pain and diffuse tibial tenderness of less than 3 months' duration were recruited. Subjects were excluded if there was clinical evidence of compartment syndrome, muscle hernia, or stress fracture. Each subject underwent XR, TPBS, and MRI within 2 wk of physical examination. Four asymptomatic controls underwent TPBS and MRI. Clinical findings, XR, TPBS, and MRI findings were independently recorded using a consistent template and subsequently analyzed. A single consensus lesion was chosen that provided the greatest overlap and highest grade to allow comparison of clinical and imaging findings. Sensitivity and specificity were calculated from data relating to clinical findings and diagnostic imaging. RESULTS: Eighteen subjects had bilateral symptoms and five unilateral with a mean duration of symptom of 5.4 wk (+/- 3.5). Of 41 symptomatic lower legs, there were TPBS abnormalities in 36 and MRI findings in 34. Analysis of clinical findings to TPBS and MRI demonstrated a sensitivity and specificity of 84%, 33% and 79%, 33%, respectively. Assuming TPBS as the "gold-standard," MRI findings demonstrated a sensitivity of 95% and specificity of 67%. There was poor agreement between the grading of TPBS and MRI (k = 0.3). In the 5/46 asymptomatic limbs, 3/5 demonstrated uptake on bone scan and 4/5 signal change with MRI. Imaging abnormalities were similarly seen in the four control patients. CONCLUSIONS: MRI may be used rather than TPBS and radiographs for evaluating acute tibial pain in athletes where avoidance of radiation exposure is desirable. Similar sensitivity and specificity may be expected from both investigations; however, in the light of abnormal TPBS and MRI findings in control and asymptomatic limbs, we recommend further studies be performed to define the extent of nonpathological TPBS and MRI changes.  相似文献   
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Future cathode materials for lithium rechargeable batteries   总被引:16,自引:0,他引:16  
Lithium rechargeable batteries are now well established as power sources for portable equipment, such as portable telephones or computers. Future applications include electric vehicles. However before they can be used for this, or other price-sensitive applications, new cathode materials of much lower cost are needed. Possible cathode materials are reviewed.  相似文献   
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