1,461 research outputs found

    The Impact of Age and Duration of Cochlear Implant in a Congenital Deaf Population: An ERP Study

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    Objective: It is well known that patients with Cochlear Implant (CI) have a large inter-individual variability in linguistic and auditory performances. This can be related to individual auditory processing abilities and integrity of auditory system from auditory nerve to cerebral cortex. P300 can be used for the evaluation of central auditory functions in people with hearing loss and CI. No studies considered the P300 in the population of prelingually deafened adults that underwent CI in old age. The aim of this study is to assess Event Related Potential (ERP) in patients with congenital profound hearing loss with early or late implantation and evaluate these results respect to an age-matched normal hearing group. Methods: ERPs (N100, N200 and P300) and auditory benefit testing (pure tone average and speech audiometric test) and auditory perception testing (Categories of Auditory Performance\u2014CAP) were evaluated in all subjects with their device. Results: All mean latencies (N100, N200 and P300) were found greater in patients group compared to control group. When analyzing all measures in patient group, we did not find any significant differences according to age of implant while significant difference (p > 0.05) in N100 amplitude (p = 0.045) and P300 latency (p = 0.035) were found according to time of CI use. A linear correlation between N200 and P300 latency in control and patients groups was found. Conclusion: In summary, ERPs analysis in the evaluation of CI showed a great importance of long use of the device in addiction to an early time of implant

    Users' support as a social resource in educational services: Construct validity and measurement invariance of the User-Initiated Support Scale (UISS)

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    Social support is an important resource for reducing the risks of stress and burnout at work. It seems to be particularly helpful for educational and social professionals. The constant and intense relationships with users that characterize this kind of service can be very demanding, increasing stress and leading to burnout. While significant attention has been paid to supervisors and colleagues in the literature, users have rarely been considered as possible sources of social support. The only exception is the Zimmermann et al.’ (2011) research, focused on customer support as a resource for workers’ well-being. This paper proposes the validation of the customer-initiated support scale developed by Zimmermann et al. (2011), translated into Italian and focused on educational services users (children’s parents), to measure the user support perceived by workers: the User-Initiated Support Scale (UISS). In Study 1 (105 teachers), which specifically involved educators and kindergarten teachers, the items and scale properties were preliminarily examined using descriptive analyses and exploratory factor analysis (EFA). In Study 2 (304 teachers), the construct and criterion validity and scale dimensionality were analyzed using confirmatory factor analysis (CFA). In Study 3 (304 teachers from Study 2 and 296 educators), measurement invariance was tested. The EFA results from Study 1 showed a one-factor solution (explained variance, 67.2%). The scale showed good internal coherence (alpha = .88). The CFA in Study 2 validated the one-factor solution (CFI = .987; SRMR = .054). Bivariate correlations confirmed construct validity; the UISS was positively associated (convergent) with user gratitude, and not associated (divergent) with disproportionate customer expectations. Regarding the criterion validity test, the UISS was strongly correlated with burnout and job satisfaction. The analysis of measurement invariance performed on the Study 3 data confirmed the equality of the parameters of the covariance structure model between the two samples of kindergarten teachers and educators. This research study offers a useful version of a tool for measuring a crucial, but often ignored, protective resource for all professionals working directly with people (patients, students, and service users) that can represent important sources of well-being, directly or indirectly lessening the negative impacts of job demands

    Nutritional Quality of Meat Analogues: Results From the Food Labelling of Italian Products (FLIP) Project

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    Nowadays, the interest in meat substitutes is increasing, and consumers perceive their nutritional quality better than that of the animal products they intend to resemble. Therefore, this work aimed to investigate the overall nutritional quality of these new products. Regulated information [Regulation (EU) 1169/2011], the presence/absence of nutrition or health claim and organic declarations, the gluten-free indication, and the number of ingredients were collected from the food labels of 269 commercial meat analogues currently sold on the Italian market. Nutritional information of reference animal meat products was used to compare the nutrition profile. As an indicator of the nutritional quality, the Nutri-Score of meat analogues and counterparts was also determined. Plant-based steaks showed significantly higher protein, lower energy, fats and salt contents, and better Nutri-Scores than the other analogues. All the meat analogues showed a higher fibre content than meat products, while plant-based burgers and meatballs had lower protein contents than meat counterparts. Ready-sliced meat analogues showed a lower salt content than cured meats. Overall, all these plant-based products showed a longer list of ingredients than animal meat products. Results from this survey highlighted that plant-based steaks, cutlets, and cured meats have some favourable nutritional aspects compared to animal-based products. However, they cannot be considered a "tout-court" alternative to meat products from a nutritional point of view

    Extracorporeal Blood Purification with the Oxiris Membrane in Septic Shock

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    Septic shock with AKI is associated with a high mortality. We evaluated whether continuous renal replacement therapy (CRRT) using a membrane (oXiris) with adsorbing properties could improve cardio-renal response and modulate endotoxin and cytokine levels. 105 patients requiring CRRT for septic shock-AKI received CRRT with an oXiris filter. The main cardio-renal parameters, SOFA total score, SOFA organ score, endotoxin and cytokine levels were measured at baseline (T0) and 72 h after the start of CRRT (T1). Norepinephrine infusion rate, blood lactate levels, and thromboelastographic parameters were monitored. At T1, the renal function improved (p < 0.01) urinary output increased ( p < 0,.01 ) with the cardiac response and the decrease of norepinephrine infusion. SOFA total decreased to 8.4 ± 3 from 12 ± 2 (p < 0.001). Endotoxin decreased also at T 1 ( p < 0.01) with a reduction of Il 6 and procalcitonin. Lactate level ranged from 3.37 ± 3.2mto 1.67 ± 1.8 mmol/l (p < 0.01). CRRT with the oxiris filter improves the cardio renal response response in septic patients with AKI. This is associated with a modulation of endo-toxemia, of cytokines and the stability of the coagulation parameters

    Prevalence of metabolic syndrome and non-alcoholic fatty liver disease in a cohort of italian patients with spinal-bulbar muscular atrophy

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    Spinal-bulbar muscular atrophy (SBMA), is an X-linked motor neuron disease caused by a CAG-repeat expansion in the first exon of the androgen receptor gene (AR) on chromosome X. In SBMA, non-neural clinical phenotype includes disorders of glucose and lipid metabolism. We investigated the prevalence of metabolic syndrome (MS), insulin resistance (IR) and non alcoholic fatty liver disease (NAFLD) in a group of SBMA patients. Forty-seven consecutive patients genetically diagnosed with SBMA underwent biochemical analyses. In 24 patients abdominal sonography examination was performed. Twenty-three (49%) patients had fasting glucose above reference values and 31 (66%) patients had a homeostatic model assessment (HOMA-IR) 65 2.6. High levels of total cholesterol were found in 24 (51%) patients, of LDL-cholesterol in 18 (38%) and of triglycerides in 18 (38%). HDL-cholesterol was decreased in 36 (77%) patients. Twenty-four (55%) subjects had 3 or more criteria of MS. A positive correlation (r = 0.52; p < 0.01) was observed between HOMA-IR and AR-CAG repeat length. AST and ALT were above the reference values respectively in 29 (62%) and 18 (38%) patients. At ultrasound examination increased liver echogenicity was found in 22 patients (92 %). In one patient liver cirrhosis was diagnosed. Liver/kidney ratio of grey-scale intensity, a semi-quantitative parameter of severity of steatosis, strongly correlated with BMI (r = 0.68; p < 0.005). Our study shows a high prevalence of IR, MS and NAFLD in SBMA patients, conditions that increase the cardiovascular risk and can lead to serious liver damage, warranting pharmacological and non-pharmacological treatment

    Meat and Milk Production on Irrigated Birdsfoot Trefoil Pastures in the Mountain West USA

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    Irrigated birdsfoot trefoil (BFT; Lotus corniculatus L.) is a productive, persistent perennial legume in the Mountain West region of the United States of America (USA) (MacAdam and Griggs 2006). It does not cause bloat, even when grazed in pure stands, because it contains a relatively small amount (2-4% of dry matter (DM)) of condensed tannins (Mueller-Harvey 2006; Waghorn 2008). Birdsfoot trefoil tannins bind excess plant proteins at rumen pH (~ pH 6.2) sufficiently to prevent bloat and then release these proteins into the abomasum at gastric pH (~ pH 2.5). This allows plant proteins to be digested to amino acids that can be absorbed in the small intestines (Waghorn et al. 1987). Short-term increases in productivity have been demonstrated in beef cattle (Wen et al. 2002) and dairy cows (Woodward et al. 1999) grazing BFT, but few studies have looked at longer-term effects on commercial farms. This study investigated the rate of season-long average daily liveweight gain and meat quality of cattle (MacAdam et al. 2011) and the intake and milk production of dairy cattle grazing pure stands of BFT on commercial farms during the summer grazing period of 2012

    Post-genomica e post-veritĂ : un dialogo interdisciplinare

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    Questo articolo è il frutto di un dialogo interdisciplinare a tre: Roberta, antropologa, Carlo, filosofo, e Sara, classicista. Ci siamo incontrati collaborando, da prospettive diverse, a un progetto con un gruppo di scienziati nelle scienze naturali e biologiche. La nostra riflessione si sviluppa intorno alle se guenti domande: Che cosa significa essere esperti di qualcosa? Qual è la funzione sociale degli esperti e delle loro istituzioni? Quali metodi e prospettive abbiamo per studiare l’expertise
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