308 research outputs found

    Estimating preferences for controlling beach erosion in Sicily

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    This study applied discrete-choice experiments to estimate preferences for a program aimed at reducing the retreatment of the sandy beach at "Lido di Noto", a renowned Sicilian bathing resort close to Noto (Italy). Econometric analysis of data was based on Multinomial Logit (MNL), Latent Class (LC) and Mixed Logit (MXL) models. Findings shown that users appreciated the advancement of the current coastline through nourishment, and negatively perceived the construction of emerged sea barriers. MXL and LC models revealed that preferences were heterogeneous

    The effect of particulate matter on paper degradation

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    Background: In this work we explore the chemical effects of particulate matter on paper. We exposed paper made of pure cellulose to the environment in different locations in central London, outdoors (in sheltered conditions) and indoors, for a period of up to 6 months. We monitored particulate matter (PM) deposition by counting the particles deposited every month with a scanning electron microscope. We analysed elemental composition of the deposited particles using inductively coupled plasma mass spectrometry. After accelerated degradation of the exposed samples, we determined the degree of polymerisation using viscometry. Results: We observed higher deposition rates and higher metal concentration outdoors than indoors. Elemental analysis of the deposited particles revealed the presence of some transition metals (Fe, Cu, Cr) that can contribute to the degradation of cellulose fibres through the Fenton reaction. By comparing the degree of polymerisation of pro‑ tected, unprotected and unexposed samples we could determine the relative contribution of PM deposition on the increase of the degradation rate. We found that the surface concentration of iron correlates with the reduction in the degree of polymerisation of the exposed paper. Conclusions: The results suggest that the presence of Fenton metals in PM has a significant effect on the accelera‑ tion of the degradation of cellulose. However, we estimate that this will unlikely occur at the levels of area coverage by PM that are typically avoided in indoor heritage through preventive maintenance and cleaning

    A focus group study for the design of a web-based tool for improving problem-solving in older adults

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    The development of easily accessible and usable social and cognitive enhancement trainings is becoming a priority to reduce the impact of aging on quality of life. Since most activities of daily living (e.g., making a meal) require problem-solving skills, problem-solving interventions could be used to improve and/or maintain functional abilities in aging to prolong independence. To design an effective problem-solving training and increase older adults' adherence to the training, this study examined older adults' perceptions of their challenges in activities of daily living, their skills and difficulties in using information technology (IT), and their motivations and expectations for participating in a web-based problem-solving training activity. Four focus groups (two in Italy and two in the Netherlands) were conducted with older adults aged between 65 and 84 years, a total of 27 participants. The data were analyzed using the Atlas.ti 8 software for the thematic analysis. The analysis identified five thematic areas: interests and activities, difficulties and concerns, experiences and motivations for training, expertise and resources, suggestions for the design of the new training. The results were used to develop a first prototype of a Shared, Web-based, Intelligent Flexible Thinking Training (SWIFT), adapted to future user needs. The participation of older adults in this design phase was critical to understanding their needs, motivations, and expectations regarding the implementation and use of a cognitive enhancement training.</p

    Individual and neighborhood-level socioeconomic characteristics in relation to smoking prevalence among black and white adults in the Southeastern United States: a cross-sectional study

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    <p>Abstract</p> <p>Background</p> <p>Low individual-level socioeconomic status (SES) is associated with higher prevalence of cigarette smoking. Recent work has examined whether neighborhood-level SES may affect smoking behavior independently from individual-level measures. However, few comparisons of neighborhood-level effects on smoking by race and gender are available.</p> <p>Methods</p> <p>Cross-sectional data from adults age 40-79 enrolled in the Southern Community Cohort Study from 2002-2009 (19, 561 black males; 27, 412 black females; 6, 231 white males; 11, 756 white females) were used in Robust Poisson regression models to estimate prevalence ratios (PRs) and 95% confidence intervals (CI) for current smoking in relation to individual-level SES characteristics obtained via interview and neighborhood-level SES characteristics represented by demographic measures from US Census block groups matched to participant home addresses.</p> <p>Results</p> <p>Several neighborhood-level SES characteristics were modestly associated with increased smoking after adjustment for individual-level factors including lower percentage of adults with a college education and lower percentage of owner-occupied households among blacks but not whites; lower percentage of households with interest, dividends, or net rental income among white males; and lower percentage of employed adults among black females.</p> <p>Conclusions</p> <p>Lower neighborhood-level SES is associated with increased smoking suggesting that cessation programs may benefit from targeting higher-risk neighborhoods as well as individuals.</p

    ROLE OF SYMPTOMS DURATION AS PROGNOSTICATOR FOR SACRAL NEUROMODULATION IN REFRACTORY OVERACTIVE BLADDER

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    Hypothesis / aims of study Sacral neuromodulation (SNM) offers a well-tolerated treatment option for patients with overactive bladder syndrome (OAB) refractory to conservative treatment. The advantageous effect of SNM depends on the accurate identification of suitable candidates during pre-implant percutaneous nerve evaluation. In the Literature there are conflicting data regarding the role of age, duration of complaints and neurogenic bladder dysfunction in predicting the effect of SNM, and up to-date no specific urological pre-treatment factors have been associated with response to SNM. The aim of this multicentric study was to investigate data from 103 patients with refractoy OAB who underwent SNM implant in order to evaluate the role of symptoms duration as possible pre-treatment prognosticator. Study design, materials and methods From September 2001 to November 2010 a total of 103 patients attending four different urological centres with refractory OAB underwent a temporary SNM implant. Patient data (demographics, medical history,urologic investigations, and diagnosis) were collected. Temporary implant results were evaluated from a voiding diary and patient history. More than 50% improvement of voiding parameters was considered a successful SNM and those patients were selected for implantation. We test the duration of complaints as prognosticator for predicting SNM result. We performed the Pearson correlation analysis. For comparison between groups either Student's t test or Mann-Whitney test were used, as appropriate. Results Eighty patients (77%) underwent a definitive implant. At a mean follow-up of 25.2 \uf0b1 22.9 months we observed a significant decrease (p<0.001) in the mean number of incontinence episodes/die (1.3\ub1 1.9 versus 4.6\ub12.4), number of pads/die (1.2 \ub1 1.4 versus 3.7 \ub1 2.2), daily urinary frequency (8.7 \ub1 2.8 micturitions/die versus 12.7 \ub1 4.8). Stratifying patients according to the lower urinary tract dysfunction aetiology (idiopathic, neurogenic, iatrogenic), we did not find any significant correlation between symptoms duration (neither as continuous nor categorical variables) and the improvement rates of incontinence episodes (figures 1-2), and micturition frequency (figures 3-4), although we observed better results mainly in neurogenic patients with < 4- year history of urinary symptoms (figure 5). Interpretation of results Patients with urgency and urge urinary incontinence due to neurogenic lower urinary tract dysfunction for a relatively long period of time may have a lower chance of a positive test compared with patients with neurogenic dysfunction for a relatively short period. Concluding message Duration of complaints was not found to be significant predictive factor for the success of SNM. Disclosure

    SACRAL NEUROMODULATION FOR THE TREATMENT OF REFRACTORY LOWER URINARY TRACT DYSFUNCTION: RESULTS FROM A MULTICENTER STUDY

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    Hypothesis / aims of study Sacral neuromodulation (SNM) has been used as a safe, effective treatment option for patients with lower urinary tract dysfunction (LUTD). Several clinical studies demonstrated its positive effects on refractory urge incontinence, non-obstructive urinary retention, urgency frequency syndrome, as well as on other non urological disorders, such as faecal incontinence and chronic constipation. The aim of this research project was to evaluate the efficacy and safety of sacral neuromodulation on the management of LUTD refractory to the standardised first line treatment options. Study design, materials and methods We retrospectively collected and evaluated data from patients undergoing SNM between September 2001 and November 2010 in 4 Urological Centres of Northeast Italy. The patients were affected by Overactive Bladder Syndrome (OAB) and non-obstructive Urinary Retention (UR). All the patients were evaluated with voiding diaries, before and after implantation. Patients included in the present evaluation were followed in a network of 4 Italian urological centres which participate to the Italian Clinical Service project - a national urological database and medical care project aiming at describing and improving the use of implantable urological devices in the Italian clinical practice. To evaluate the patient reported outcome (PRO) of the impact of SNM on refractory OAB, we retrospective revised files from all implanted patients who completed pre and post-operatively the King\u2019s Health Questionnaire (KHQ). KHQ is a specific assessment instrument of the heath related quality of life (HRQoL) for patients with OAB, and incontinence symptoms. It consists of 21 items distributed in nine dimensions: general health (GH), incontinence impact (II), role limitations (RLs), personal limitations (PLs), social limitations (SLs), personal relationship (PR), emotions (Em), sleep/energy (Slp/En), and severity measures (SMs). The score of each dimension ranges from 0 (lower OAB symptoms impact; better HRQoL) to 100 (higher OAB symptoms impact; worse HRQoL). Continuous normally distributed variables were reported as the mean value \ub1 standard deviation (SD). Continuous non-normally distributed variables were presented as the median values and an interquartile range (IQR). The t-test, the Mann-Whitney and Wilcoxon tests were used to compare continuous variables, as appropriate. A two-sided p < 0.05 was considered statistically significant. Results Overall, 135 patients underwent implantation of SNM during the period under review. Eighty-three out of 135 (61.5%) patients complained of OAB, and 52 (38.5%) of UR. In patients treated for OAB, we documented a statistically significant reduction in the mean number of: incontinence episodes/die, pads/die, daily micturitions, nocturnal micturitions and global micturitions (see table I). In patients treated for UR, we observed a statistically significant reduction in the mean post voiding residual volume and in the number of self catheterization (see table II). Concerning the impact of SNM on HRQOL from patients complaining of refractory OAB, only nineteen patients (17 female and 2 male), from a single centre, filled-in the KHQ pre- and/or postoperatively The median patients\u2019 age was 70 years (range 65-74) with a median follow-up of 42 months (range 17.5-48). Median and range of quality of life KHQ of general health and personal relationship pre- and post-operatively were reported in table III. Table I. SNM clinical outcomes in patients with refractory OAB Variable N Baseline FU P-value Incontinence episode/die, mean\ub1SD 48 4.1\ub12.7 1.5\ub12.1 <0.001\ub0 Pads/die, mean\ub1SD 44 3.4\ub12.4 1.3\ub11.4 <0.001\ub0 Voided volume, mean\ub1SD 45 143.6\ub169.9 206.7\ub188.5 <0.001* Daily micturition, mean\ub1SD 48 10.4\ub14.2 7.4\ub12.5 <0.001\ub0 Nightly micturition, mean\ub1SD 48 2.6\ub11.8 0.8\ub10.9 <0.001\ub0 Global micturition, mean\ub1SD 48 13.0\ub15.3 8.1\ub12.7 <0.001\ub0 *T-Test; \ub0 Wilcoxon test Table II. SNM clinical outcomes in patients with non-obstructive urinary retention Variabile N Baseline FU P-value Post void reisdual urine, mean\ub1SD 30 321.4\ub1153.5 87.2\ub196.9 <0.001\ub0 Catheterism/die, mean\ub1SD 30 3.8\ub11.4 1.3\ub11.3 <0.001\ub0 Daily micturition, mean\ub1SD 29 4.7\ub13.8 5.4\ub12.0 0.159\ub0 Nightly micturition, mean\ub1SD 29 0.7\ub11.3 0.7\ub11.1 0.886\ub0 Global micturition, ,mean\ub1SD 29 5.4\ub14.6 6.1\ub12.5 0.328\ub0 *T-Test; \ub0 Wilcoxon test Table III. Median and range of HRQoL assessed pre- and postoperatively by King\u2019s Health Questionnaire* of general health and personal relationship of patients underwent SNM for refractory OAB. Dimension pre-SNM median (rance) post-SNM median (range) p-Value Wilcoxon matched pairs test GH 50 (37.5-50) 50 (25-62.5) 1 II 100 (100-100) 100 (50-100) 0.063 RLs 83.3 (50-100) 50 (33.3-100) 0.102 PLs 83.3 (66.7-100) 33.3 (16.7-83.3) 0.026 SLs 77.8 (50-94.4) 0 (0-50) 0.017 PR 0 (0-25) 0 (0-33.3) 0.785 Em 77.8 (22.2-88.9) 33.3 (11.1-44.4) 0.14 Slp/En 50 (33.3-75) 50 (16.7-66.7) 0.109 SMs 58.3 (33.3-79.2) 66.7 (25-75) 0.671 *The score ranges from 0 (lower OAB symptoms, better HRQoL) to 100 (higher OAB symptoms, worse HRQoL). In comparison of the preoperative setting, patients after the implant showed a better scores in many KHQ dimensions. In particular for personal limitations (p=0.026), and social limitations (p=0.017). The length of follow-up did not significantly impact on HRQoL scores. Interpretation of results SNM offers objective benefits for people with refractory OAB and for those with urinary retention without structural obstruction. Concerning the PRO, because OAB symptoms in general may have a serious impact on a person\u2019s daily activities and social life, the effect of treatment on disease-specific HRQoL also reflects its efficacy. In our series we observe a significant improvement of HRQoL for the following KHQ items: personal limitations and social limitations. We observe a better, although not significant, HRQoL also for the following items: Incontinence Impact, Role Limitations, and Emotions. We did not found any correlation between the follow-up length and HRQoL. We should take great caution in interpreting these results because all the measures of the impact of SNM on the HRQOL comes from a small number of patients\u2019 perspective. Concluding message This multicenter research project confirmed the midterm safety and effectiveness of sacral neuromodulation in the treatment of refractory overactive bladder syndrome and non-obstructive urinary retention, showing high cure rates and low complication rates

    Racial Disparities in the Treatment of Depression in Low-Income Persons With Diabetes

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    Individuals with diabetes are at higher risk for depression than the general population. Although depression can be treated with antidepressant medications, patients with diabetes and comorbid depression often go untreated. The goal of this study was to examine racial disparities in the treatment of depression with antidepressant medication in the southeastern U.S
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