8,628 research outputs found

    Uso de planilhas eletrônicas para irrigação de videiras.

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    bitstream/item/139653/1/Conceicao-Jor.daFruta-v21-n272-p8-2013.pd

    Health-related quality of life in hereditary transthyretin amyloidosis polyneuropathy: a prospective, observational study

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    Background Hereditary Transthyretin Amyloidosis Polyneuropathy is a rare life-threatening neurologic disease that imposes considerable mortality and it is associated with progressive related disabilities. In this study, we aimed to assess the effect of the disease across health-related quality of life dimensions, in both carriers of the mutation and patients, to compare health-related quality of life with general population, as well as to explore health-related quality of life prognostic factors among patients, including disease progression and treatment. Methods This study was a multi-institutional, longitudinal, prospective, observational study of hereditary Transthyretin Amyloidosis Polyneuropathy Portuguese adult subjects (621 asymptomatic carriers and 733 symptomatic patients) enrolled in the Transthyretin Amyloidosis Outcomes Survey. Health-related quality of life was captured with the preference-based instrument EQ-5D-3 L. For general population the dataset included all subjects enrolled in a representative national study (n = 1500). Different econometric models were specified; multivariate probit, generalized linear model and generalized estimating equations model; including demographic and clinical covariates. Results Hereditary Transthyretin Amyloidosis Polyneuropathy patients have their health status severely impaired in all quality of life dimensions and more anxiety/depression problems were found among asymptomatic carriers. No differences on utility were found between carriers and general population (p = 0.209). Among patients, the utility value is estimated to be 0.51 (0.021), a decrement of 0.27 as compared with general population utility. Higher disease duration, advanced disease stage and not receiving treatment are associated with impaired health-related quality of life. No differences were found between genders (p = 0.910) or between late (≥50 years) and early-onset patients (p = 0.254). The utility estimate ranged from 0.63 (0.009) in stage I to 0.01 (0.005) in stage IV. Conclusions Hereditary Transthyretin Amyloidosis Polyneuropathy symptoms and progressive associated disabilities substantially decrease patient’s health-related quality of life. Clinical strategies focused on health-related quality of life preservation such as close follow-up of asymptomatic carriers, prompt diagnosis and adequate, early treatment would benefit patient’s long-term outcomes, slowing the progressive decline in health-related quality of life.info:eu-repo/semantics/publishedVersio

    Diagnóstico de assentamentos rurais em Mato Grosso do Sul.

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    Assentamento Novo Horizonte do Sul; Assentamento Nova Esperanca; Assentamento Indaia; Assentamento Sul Bonito; Assentamentos Padroeira do Brasil, Conceicao, Andalucia e Colonia Nova; Assentamentos Campo Verde, Patagonia e Paraiso.bitstream/item/69334/1/CPAO-DOC.-18-00.pd

    Physical activity affects brain integrity in HIV+ individuals

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    Prior research has suggested benefits of aerobic physical activity (PA) on cognition and brain volumes in HIV uninfected (HIV−) individuals, however, few studies have explored the relationships between PA and brain integrity (cognition and structural brain volumes) in HIV-infected (HIV +) individuals. Seventy HIV + individuals underwent neuropsychological testing, structural neuroimaging, laboratory tests, and completed a PA questionnaire, recalling participation in walking, running, and jogging activities over the last year. A PA engagement score of weekly metabolic equivalent (MET) hr of activity was calculated using a compendium of PAs. HIV + individuals were classified as physically active (any energy expended above resting expenditure, n = 22) or sedentary (n = 48). Comparisons of neuropsychological performance, grouped by executive and motor domains, and brain volumes were completed between groups. Physically active and sedentary HIV + individuals had similar demographic and laboratory values, but the active group had higher education (14.0 vs. 12.6 years, p = .034). Physically active HIV + individuals performed better on executive (p = .040, unadjusted; p = .043, adjusted) but not motor function (p = .17). In addition, among the physically active group the amount of physical activity (METs) positively correlated with executive (Pearson’s r = 0.45, p = 0.035) but not motor (r = 0.21; p = .35) performance. In adjusted analyses the physically active HIV + individuals had larger putamen volumes (p = .019). A positive relationship exists between PA and brain integrity in HIV + individuals. Results from the present study emphasize the importance to conduct longitudinal interventional investigation to determine if PA improves brain integrity in HIV + individuals

    Ethnobotany of raffia palm (Raphia hookeri), productivity assessment and characterization of raffia palm oil from the Niger Delta, Nigeria

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    Raffia palm (Raphia sp) occurs abundantly in the wild in the freshwater zone of the Niger Delta, Nigeria. This study was carried out to assess the use, biomass productivity and characterization of raffia palm oil. Ripe raffia palm fruits were sampled from the three core Niger Delta States (Bayelsa, Delta and Rivers). The oil was extracted using mechanical method and was characterized. Results show that the relative density of the oil was 0.8700 – 0.9039, free fatty acid (FFA) content of 1.13% (Delta), 6.92% (Bayelsa) and 9.74% (Rivers), acidity value of 2.26% in Delta state, 13.94% in Bayelsa state and 19.48% in Rivers state (P<0.05), iodine value of 26.79% was recorded in the raffia palm oil from Rivers state, 28.60% from Bayelsa and 31.10% from Delta state. The peroxide value of the raffia oil was 5.58 mg KOH/g (Rivers state), 7.22 mg/KOH/g (Delta state) and 7.68mg/KOH/g (Bayelsa state) (P<0.05). The saponification number was 25.16 mgKOH/g in the oil from Bayelsa, 32.72 mgKOH/g from Delta and 213.18 mgKOH/g for Rivers state (P<0.05). The parameters fairly fell within the Nigerian standard for vegetable oil. The wild palm has a biomass productivity of 933 trees/ha in Bayelsa and Delta states and 1066 trees/ha in Rivers, but the apparent differences was not statistically significant (P>0.05). Raffia palm is currently underutilized by indigenous people for building construction, production of brooms, basket, ropes and constriction of fish, crab and turtle traps. Edible insect larva is obtained from the palm. Palm wine and locally fermented gin are the major uses of raffia palm. We conclude that raffia palm can be utilized as second generation biofuel feed stock to mitigate food versus fuel conflicts

    A new method for the study of essential fatty acid requirements in fish larvae

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    This study describes a methodology with potential application in the estimation of essential fatty acid (EFA) requirements of fish larvae. Senegalese sole (Solea senegalensis) larvae were fed, from 16 days after hatching (DAH), on Artemia enriched with different oils, inducing graded dietary concentrations of DHA: (1) soyabean oil, containing no measurable amounts of DHA (NDHA); (2) fish oil, inducing a medium DHA level (MDHA, 3 g DHA/100 g fatty acids); and (3) a mixture of Easy DHA Selco and Microfeed, resulting in high DHA content (HDHA, 8 g/100 g). At 28 DAH a metabolic trial was conducted where larvae were tube fed [1-(14) C]DHA, in order to determine its absorption, retention in the gut and body tissues, as well as its oxidation. At 23 DAH the HDHA treatment induced a significantly higher larval growth, while at 32 DAH significant differences were only found between the NDHA and HDHA treatments. The absorption of tube-fed [1-(14) C]DHA was extremely high (94-95%) and independent of feeding regime. However, in larvae fed NDHA Artemia, a significantly higher amount of label was retained in the gut compartment and a concurrently lower retention was measured in the body. A significantly higher proportion of the absorbed DHA label was oxidized in larvae fed HDHA, compared to NDHA. Based on these results, we suggest that increasing dietary supply of DHA above the larval requirement level results in its increased oxidation for energy purposes and we propose potential applications of the tube feeding methodology using radiolabelled EFA in conjunction with dose-response studies.'Fundacao para a Ciencia e a Tecnologia', Portugal [SFRH/BD/4902/2001]; FEDER, European Commission [PROMAR/SP5.P117/03

    Evaluation of antibacterial activity of Pisidium guajava and Gongronema Latifolium

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    Pisidium guajava and Gongronema latifolium are local plants used traditionally in south-eastern Nigeria to treat ailments such as cough, loss of appetite, malaria and stomach disorders. In this study, aqueous and ethanolic leaf extracts of P. guajava and G. latifolium were screened for antibacterial activity against two clinically isolated organisms of the gastrointestinal tract, Escherichia coli and Staphylococcus aureus. Results obtained show that leaf extracts of both plants possess significant antibacterial activities against the two isolates. Ethanolic extracts showed more inhibitory effect compared to the aqueous extracts. Extracts of P. guajava exhibited higher inhibitory effect than that of G. latifolium. The diameter of zones of inhibition by the leaf extracts of P. guajava was 8 - 16 mm and 14 - 21 mm respectively for the aqueous and ethanolic extracts. The minimum inhibitory concentrations (MICs) were 5.0 and 0.625 mg ml-1 respectively for the aqueous and ethanolic extracts of P. guajava. For the extracts of G. latifolium, the diameter of zones of inhibition was between 6 and 10 mm while MICs were 10.0 and 2.5 mg ml-1 respectively for the aqueous and ethanolic extract

    Displaced but not replaced: the impact of e-learning on academic identities in higher education.

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    Challenges facing universities are leading many to implement institutional strategies to incorporate e-learning rather than leaving its adoption up to enthusiastic individuals. Although there is growing understanding about the impact of e-learning on the student experience, there is less understanding of academics’ perceptions of e-learning and its impact on their identities. This paper explores the changing nature of academic identities revealed through case study research into the implementation of e-learning at one UK university. By providing insight into the lived experiences of academics in a university in which technology is not only transforming access to knowledge but also influencing the balance of power between academic and student in knowledge production and use, it is suggested that academics may experience a jolt to their ‘trajectory of self’ when engaging with e-learning. The potential for e-learning to prompt loss of teacher presence and displacement as knowledge expert may appear to undermine the ontological security of their academic identity
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