Cold model testing of an innovative dual bubbling fluidized bed steam gasifier

Biomass gasification by a dual fluidized bed reactor is a very promising process to produce a hydrogen rich syngas from biomass wastes. In this process, the bed material circulation must be enough to transport heat from the combustor to the steam gasifier, and at the same time siphons/loop-seals must be properly designed to avoid gas leakage between the two reactor chambers (such as N2 from the combustor to the gasifier). A cold model of an innovative pilot scale dual bubbling fluidized bed gasifier (100 kWth as biomass input) has been realized. The Hybrid Lagrangian Particle Tracking (HLPT) technique and tracer gas analysis, both applied to the cold model, have been used to evaluate the flow rate of bed material circulation and the gas leakage between the steam gasification and the combustion chambers. The results have shown that the bed material circulation is 2–3 times the minimum required to assure allothermal gasification, while gas leakage is negligible for every operating condition evaluated experimentally

La resilienza nel circuito penale minorile in tempi di pandemia: un’esperienza di studio e formazione basata sul modello sferico della coscienza su un gruppo di educatori

This paper presents the results of a study investigating both predictors of resilience on a group of educators of the juvenile justice system and effects of group training on this construct. Results showed that (a) self-efficacy in managing positive and negative emotions and positive attitude are predictors of resilience and (b) the comparison of pre-post values revealed an impact of training affecting the balance between self-efficacy in managing positive and negative emotions and positive attitude. Ultimately, this study seems to indicate the need to promote targeted training experiences on emotion management for supporting the educators in the juvenile justice system

Envisioning the future for families running away from war: Challenges and resources of Ukrainian parents in Italy

Since February 2022, 7.8 million people have left Ukraine. In total, 80% are women and children. The present quali-quantitative study is the first in Italy to (i) describe the adaptation challenges and the resources of refugee parents and, indirectly, of their children and (ii) investigate the impact of neuropsychopedagogical training on their wellbeing. The sample includes N = 15 Ukrainian parents (80% mothers, mean age = 34 years) who arrived in Italy in March and April 2022. The parents participated in neuropsychopedagogical training within the program Envisioning the Future (EF): the 10 Keys to Resilience. Before the training, participants completed an ad hoc checklist to detect adjustment difficulties. After the training, they responded to a three-item post-training questionnaire on the course and to a semi-structured interview deepening adaptation problems, personal resources, and the neuropsychopedagogical training effects. Participants report that since they departed from Ukraine, they have experienced sleep, mood, and concentration problems, and specific fears, which they also observed in their children. They report self-efficacy, self-esteem, social support, spirituality, and common humanity as their principal resources. As effects of the training, they report an increased sense of security, quality of sleep, and more frequent positive thoughts. The interviews also reveal a 3-fold positive effect of the training (e.g., behavioral, emotional-relational, and cognitive-narrative)

Tracking the progressive spread of the SARS-CoV-2 Omicron variant in Italy, December 2021 to January 2022

The SARS-CoV-2 variant of concern Omicron was first detected in Italy in November 2021.AimTo comprehensively describe Omicron spread in Italy in the 2 subsequent months and its impact on the overall SARS-CoV-2 circulation at population level.MethodsWe analyse data from four genomic surveys conducted across the country between December 2021 and January 2022. Combining genomic sequencing results with epidemiological records collated by the National Integrated Surveillance System, the Omicron reproductive number and exponential growth rate are estimated, as well as SARS-CoV-2 transmissibility.ResultsOmicron became dominant in Italy less than 1 month after its first detection, representing on 3 January 76.9-80.2% of notified SARS-CoV-2 infections, with a doubling time of 2.7-3.3 days. As of 17 January 2022, Delta variant represented < 6% of cases. During the Omicron expansion in December 2021, the estimated mean net reproduction numbers respectively rose from 1.15 to a maximum of 1.83 for symptomatic cases and from 1.14 to 1.36 for hospitalised cases, while remaining relatively stable, between 0.93 and 1.21, for cases needing intensive care. Despite a reduction in relative proportion, Delta infections increased in absolute terms throughout December contributing to an increase in hospitalisations. A significant reproduction numbers' decline was found after mid-January, with average estimates dropping below 1 between 10 and 16 January 2022.ConclusionEstimates suggest a marked growth advantage of Omicron compared with Delta variant, but lower disease severity at population level possibly due to residual immunity against severe outcomes acquired from vaccination and prior infection

Predicting Functional Recovery and Quality of Life in Older Patients Undergoing Colorectal Cancer Surgery: Real-World Data From the International GOSAFE Study

PURPOSE The GOSAFE study evaluates risk factors for failing to achieve good quality of life (QoL) and functional recovery (FR) in older patients undergoing surgery for colon and rectal cancer.METHODS Patients age 70 years and older undergoing major elective colorectal surgery were prospectively enrolled. Frailty assessment was performed and outcomes, including QoL (EQ-5D-3L) recorded (3/6 months postoperatively). Postoperative FR was defined as a combination of Activity of Daily Living >= 5 + Timed Up & Go test <20 seconds + MiniCog >2.RESULTS Prospective complete data were available for 625/646 consecutive patients (96.9%; 435 colon and 190 rectal cancer), 52.6% men, and median age was 79.0 years (IQR, 74.6-82.9 years). Surgery was minimally invasive in 73% of patients (321/435 colon; 135/190 rectum). At 3-6 months, 68.9%-70.3% patients experienced equal/better QoL (72.8%-72.9% colon, 60.1%-63.9% rectal cancer). At logistic regression analysis, preoperative Flemish Triage Risk Screening Tool >= 2 (3-month odds ratio [OR], 1.68; 95% CI, 1.04 to 2.73; P = .034, 6-month OR, 1.71; 95% CI, 1.06 to 2.75; P = .027) and postoperative complications (3-month OR, 2.03; 95% CI, 1.20 to 3.42; P = .008, 6-month OR, 2.56; 95% CI, 1.15 to 5.68; P = .02) are associated with decreased QoL after colectomy. Eastern Collaborative Oncology Group performance status (ECOG PS) >= 2 is a strong predictor of postoperative QoL decline in the rectal cancer subgroup (OR, 3.81; 95% CI, 1.45 to 9.92; P = .006). FR was reported by 254/323 (78.6%) patients with colon and 94/133 (70.6%) with rectal cancer. Charlson Age Comorbidity Index >= 7 (OR, 2.59; 95% CI, 1.26 to 5.32; P = .009), ECOG >= 2 (OR, 3.12; 95% CI, 1.36 to 7.20; P = .007 colon; OR, 4.61; 95% CI, 1.45 to 14.63; P = .009 rectal surgery), severe complications (OR, 17.33; 95% CI, 7.30 to 40.8; P < .001), fTRST >= 2 (OR, 2.71; 95% CI, 1.40 to 5.25; P = .003), and palliative surgery (OR, 4.11; 95% CI, 1.29 to 13.07; P = .017) are risk factors for not achieving FR.CONCLUSION The majority of older patients experience good QoL and stay independent after colorectal cancer surgery. Predictors for failing to achieve these essential outcomes are now defined to guide patients' and families' preoperative counseling

Quality of life in older adults after major cancer surgery: the GOSAFE international study

Abstract Background Accurate quality of life (QoL) data and functional results after cancer surgery are lacking for older patients. The international, multicenter Geriatric Oncology Surgical Assessment and Functional rEcovery after Surgery (GOSAFE) Study compares QoL before and after surgery and identifies predictors of decline in QoL. Methods GOSAFE prospectively collected data before and after major elective cancer surgery on older adults (≥70 years). Frailty assessment was performed and postoperative outcomes recorded (30, 90, and 180 days postoperatively) together with QoL data by means of the three-level version of the EuroQol five-dimensional questionnaire (EQ-5D-3L), including 2 components: an index (range = 0-1) generated by 5 domains (mobility, self-care, ability to perform the usual activities, pain or discomfort, anxiety or depression) and a visual analog scale. Results Data from 26 centers were collected (February 2017-March 2019). Complete data were available for 942/1005 consecutive patients (94.0%): 492 male (52.2%), median age 78 years (range = 70-95 years), and primary tumor was colorectal in 67.8%. A total 61.2% of all surgeries were via a minimally invasive approach. The 30-, 90-, and 180-day mortality was 3.7%, 6.3%, and 9%, respectively. At 30 and 180 days, postoperative morbidity was 39.2% and 52.4%, respectively, and Clavien-Dindo III-IV complications were 13.5% and 18.7%, respectively. The mean EQ-5D-3L index was similar before vs 3 months but improved at 6 months (0.79 vs 0.82; P < .001). Domains showing improvement were pain and anxiety or depression. A Flemish Triage Risk Screening Tool score greater than or equal to 2 (odds ratio [OR] = 1.58, 95% confidence interval [CI] = 1.13 to 2.21, P = .007), palliative surgery (OR = 2.14, 95% CI = 1.01 to 4.52, P = .046), postoperative complications (OR = 1.95, 95% CI = 1.19 to 3.18, P = .007) correlated with worsening QoL. Conclusions GOSAFE shows that older adults’ preoperative QoL is preserved 3 months after cancer surgery, independent of their age. Frailty screening tools, patient-reported outcomes, and goals-of-care discussions can guide decisions to pursue surgery and direct patients’ expectations