Using photo-elicitation to explore social representations of community multimedia centers in Mozambique.

Ten Mozambican Community Multimedia Centers (CMCs) were investigated by analyzing Social Representations of users and staff members. Photo-elicitation, an underexplored methodological approach in the domain of Information and Communication Technologies for Development (ICT4D), was employed to conduct the study, and a three-step qualitative content analysis was performed on both visual and textual data. Results tend to confirm and build upon outcomes from the existing literature on Public Access Venues (PAVs). Local communities value these centers because they bring social recognition to people working or learning there. The venues are associated with a symbolism that extends from the social recognition of the individual to the development and social inclusion of the whole community, which, because of the presence of the venue, does not feel left behind. In this vein, the study also shows that the importance of CMCs is often not related to the newest technology available, but to the technology that reaches the most of the community. The study also highlights neglected dimensions of CMCs, such as the importance of the exterior appearance of the venue, and the perception of a switch in their nature from static centers funded by third parties towards more entrepreneurial-driven ones. The presented research also contributes to the ICT4D field by proposing a promising research protocol, which is able to elicit representations otherwise difficult to obtain

Motivations of non-use of telecentres: a qualitative study from Mozambique

On the cutting-edge scene for several years, and recently overtaken by the diffusion of more personal and pervasive technologies, telecentres have attracted and are still luring the interests of Governments in developing regions. To individuate improvement strategies and give food for thoughts to researchers and practitioners in the area, this study presents an in-depth qualitative analysis of the reasons why local people in Mozambique do not access the telecentre component of their local Community Multimedia Centers (CMCs). Based on 229 semi-structured interviews, the analysis allows to depict four main clusters of reasons for non-use, to finally suggest how they can be overcome

Effect of the wooden vats on traditional cheese characteristics

Wooden vats have been used for centuries to collect and transform milk by farmers and cheesemakers all over the world. Nowadays, the tree species mostly used to this purpose are Douglas fir and chestnut. The use of wooden vats is mandatory for the production of all PDO Sicilian cheeses, such as Ragusano, Pecorino Siciliano, Piacentinu Ennese and Vastedda della valle del Belìce. In the last years, the wooden vats have been deeply explored for the microbiological characteristics and they are covered by biofilms mainly represented by lactic acid bacteria (LAB) entrapped in a polysaccharide matrix. These microbial associations do not include pathogenic species. Up to date, there are no studies performed on the effect of wooden vats made with different tree species on the characteristics of the final cheeses. Thus, this aspect represents the main aim of the present study. Eight wooden vats (20-L volume) were made with eight tree species (Calabrian Chestnut, Sicilian Chestnut, Cedar, Cherry, Ash, Wot, Pine and Poplar) and subjected to 15-d whey treatment for the activation of the LAB biofilms on the internal surfaces. All 8 wooden vats were then used to produce PDO Vastedda della valle del Belìce cheese, according to the EU Regulation. Each cheese making (carried out in duplicate at 7-d interval) was obtained from 14 l of raw ewes’ milk. The cheeses were packaged under vacuum and, after 14 days of refrigerated storage, analysed for their physical (pH, aw, CIELab parameters) and chemical composition (DM, fat, protein, N soluble, ash, salt) according to official methods. Moreover, peroxides, TBARs and polyphenols were also determined. Vastedda cheeses were subject to a sensory evaluation following the ISO indications. Several ANOVA models were employed to statistical analyses. The results of the characterization of the cheeses revealed that the wooden vats did not influence their chemical composition, while Lightness (L*) and hue angle were significantly modified by the tree species (table 1). In particular, the cheeses produced in vats made with Calabrian and Sicilian chestnut were characterized by a lower yellow intensity than the other tree species. Poplar vat produced Vastedda cheeses with significant lower peroxidase oxidation (1.68 mq/kg) and TBARs (0.0042 mg MDA/100 g of fat), probably due to the effect of natural antioxidant transferred from the wood to the milk. No particular differences among cheeses were appreciated by the panellists

Incentivizing sustainable mobility through an impact innovation methodology

The transport sector plays a crucial role in the social and economic development of our society. Nevertheless, it is responsible for one quarter of the global CO2 emission worldwide. Although sustainable mobility could drastically reduce transport-related emissions, its adoption is still underdeveloped. In this paper, an impact innovation methodology has been used to generate a solution that could boost sustainable mobility development by creating an efficient offline tracking method that combines transactions and GPS data. The results suggest that incentive-based solutions could increase the adoption of sustainable mobility. This study generates the basis for the development of a sophisticated algorithms, able to track mobility and to incentivize people’s sustainable habits

In vitro virucidal efficacy of a dry steam disinfection system against Human Coronavirus, Human Influenza Virus, and Echovirus

This in vitro study was aimed to assess the efficacy of dry steam in inactivating Human Coronavirus OC43 (HCoV-OC43) as surrogate of SARS-CoV-2, Human Influenza Virus A/H1N1/ WSN/33 and Echovirus 7 on stainless steel, polypropylene, and cotton. The virus models were chosen on the basis of their transmission route and environmental resistance. Tests were carried out under a laminar flow cabinet, where two panels of each material were contaminated with a viral suspension. The inocula were left to dry and then the virus on untreated panel (control) was collected by swabbing in order to determine the initial titer. The other panel was treated using a professional vacuum cleaner equipped with a dry steam generator. Dry steam is generated in a boiler where tap water is heated up to 155 °C at 5.5 bar pressure and then during the passage along the flexible hose the temperature decreases to a value between 100 C and 110 C at the output. The dry steam was applied for four sec with a window wiper on metal and plastic panels or a brush covered by a microfiber cap on cotton, simulating the steam application during routine cleaning. After the treatment, infectious virus possibly remained on the surface was collected following the same swabbing procedure applied for controls. HCoV-OC43 and Echovirus 7 were titrated by end-point method on HCT-8 line cells and Vero cells, respectively, while Human Influenza Virus was quantified by plaque reduction assay on MDCK cells. Dry steam resulted effective against the three viruses on all tested materials, achieving a mean Log10 reduction factor >=4 in viral titer of treated samples compared with controls according to UNI EN 14476:2019. Thus, dry steam may be proposed as an ease to use, effective, fast, and nontoxic alternative to chemicals for surface disinfection without damaging materials. Therefore, this device could be employed not only in healthcare facilities but also in occupational, domestic, and community settings, with advantages for environment and human health

Narrative Based Medicine as a tool for needs assessment of patients undergoing hematopoietic stem cell transplantation

Background and aim: In the last years we have seen an ever increasing number of patients with haematologic disorders who need hematopoietic stem cell transplantation (HSCT). The whole sector of HSCT results, infact to be in a continous scientific and technological clinical progress, offering a very advanced care. Despite this, some aspects are underconsidered, some of which could be fundamental to determine the success of the care pathway, such as the experience of the illness by the patient. Using a Narrative Based Medicine approach we wanted to investigate clinical, psychosocial and organizational aspects of the patient\u2019s journey whilst undergoing HSCT. Method: Various narrative interviews were conducted using non-structured approach. Results were analysed by thematic contents. Results: Psycological dimension is the most compromised: above all emerged sentiments of oppression linked to the isolation period in the Low Bacterial Load (LBL) room. To note are also the different dynamics with which the patients perceive the organisation and hospital structures, and how much these factors can influence their care experience. Conclusions: Results suggest the need in clinical practice of an integration between qualitative and clinical approach, so as to permit the psychosocial and relational necessities to emerge, often unexpressed by patients undergoing HSCT

Temperature and Size Dependence of the Optical Properties of Tetrapod-Shaped Colloidal Nanocrystals Exhibiting Type-II Transitions

We have investigated the optical properties of colloidal seed-grown CdSe (seed)/CdTe (arms) nanotetrapods both experimentally and computationally. The tetrapods exhibit a type-II transition arising from electrons localized in the CdSe seed region and holes delocalized in the CdTe arms, along with a residual type-I recombination in long-arm tetrapods. Experiments and theory helped to identify the origin of both types of transitions and their size dependence. In particular, time-resolved experiments performed at 10 K evidenced a size-dependent, long living type-II radiative emission arising from the peculiar electron–hole wave function localization. Temperature-dependent photoluminescence (PL) studies indicate that, at high temperature (>150 K), the main process limiting the PL quantum efficiency of the type-I PL is thermal escape of the charge carriers through efficient exciton-optical phonon coupling. The type-II PL instead is limited both by thermal escape and by the promotion of electrons from the condu..

A Low-Dose CT-Based Radiomic Model to Improve Characterization and Screening Recall Intervals of Indeterminate Prevalent Pulmonary Nodules.

Lung cancer (LC) is currently one of the main causes of cancer-related deaths worldwide. Low-dose computed tomography (LDCT) of the chest has been proven effective in secondary prevention (i.e., early detection) of LC by several trials. In this work, we investigated the potential impact of radiomics on indeterminate prevalent pulmonary nodule (PN) characterization and risk stratification in subjects undergoing LDCT-based LC screening. As a proof-of-concept for radiomic analyses, the first aim of our study was to assess whether indeterminate PNs could be automatically classified by an LDCT radiomic classifier as solid or sub-solid (first-level classification), and in particular for sub-solid lesions, as non-solid versus part-solid (second-level classification). The second aim of the study was to assess whether an LCDT radiomic classifier could automatically predict PN risk of malignancy, and thus optimize LDCT recall timing in screening programs. Model performance was evaluated using the area under the receiver operating characteristic curve (AUC), accuracy, positive predictive value, negative predictive value, sensitivity, and specificity. The experimental results showed that an LDCT radiomic machine learning classifier can achieve excellent performance for characterization of screen-detected PNs (mean AUC of 0.89 ± 0.02 and 0.80 ± 0.18 on the blinded test dataset for the first-level and second-level classifiers, respectively), providing quantitative information to support clinical management. Our study showed that a radiomic classifier could be used to optimize LDCT recall for indeterminate PNs. According to the performance of such a classifier on the blinded test dataset, within the first 6 months, 46% of the malignant PNs and 38% of the benign ones were identified, improving early detection of LC by doubling the current detection rate of malignant nodules from 23% to 46% at a low cost of false positives. In conclusion, we showed the high potential of LDCT-based radiomics for improving the characterization and optimizing screening recall intervals of indeterminate PNs

Restrição da doação de sangue por homens que fazem sexo com homens e o estigma social: uma revisão de literatura / Restriction of blood donation by men who have sex with men and social stigma: a literature review

Em 1965 foi criada a Comissão Nacional de Hemoterapia pelo Sistema Único de Saúde (SUS), cujo objetivo era regulamentar os serviços hemo­terápicos nos hemocentros do Brasil. Segundo a portaria nº 158/2016 do Ministério da Saúde, consideram-se inaptos por um período de doze meses para doação de sangue homens que tiveram relações sexuais com outros homens. Atualmente, o Supremo Tribunal Federal (STF) julgou a Ação Direta de Inconstitucionalidade (ADI) nº 5543/DF sobre a portaria em questão. O julgamento foi favorável à inconstitucionalidade. Objetivo: Verificar na literatura nacional e internacional as evidências científicas que justifiquem a proibição de doação de sangue por homens que fazem sexo com homens (HSH) por um período de doze meses após exposição sexual. Justificativa: Inserir os HSH na política nacional de doação de sangue pode contribuir para o aumento dos estoques no país, pois a voluntariedade é essencial no processo. Metodologia: levantamento bibliográfico no MEDLINE e LILACS com os termos “homens que fazem sexo com homens AND doação de sangue” e “homossexual masculino AND doação de sangue”. Conclusão: Os potenciais doadores de sangue precisam serem avaliados segundo seu risco individual e não de grupo. É preconceituosa a proibição por doze meses de homens que fizeram sexo com homens doarem sangue.