Performance analysis of a common-rail Diesel engine fuelled with different blends of waste cooking oil and gasoil

An experimental campaign was performed to study the behavior of a common-rail Diesel engine in automotive configuration when it is fuelled with blends of Diesel fuel (DF) and waste cooking oil (WCO). In particular the tested fuels are: B20 blend, composed of 20% WCO and 80% DF; B50, composed of 50% WCO and 50% DF; WCO 100% and 100% DF. In order to fuel the engine with fuel having a similar viscosity, this quantity, together with density, has been meas-ured at temperature ranging from rom to about 80 °C. According to these measurements, before fuelling the engine B20 was heated up to 35 °C and B50 to 75 °C. An in-house software was developed to acquire the data elaborated by the electronic control unit. Results show the trend in torque and global efficiency at different gas pedal position (gpp) and different engine speed. The experiments show that larger discrepancies are measured at smaller gpp values, while at larger ones dif-ferences become smaller. A similar trend is noticed for engine global efficiency

Accampamenti di cacciatori preistorici a Isernia La Pineta

Il giacimento paleolitico di Isernia La Pinet

Trends in Coffee and Tea Consumption during the COVID-19 Pandemic

Over the last two years, many countries have enforced confinement to limit both the spread of COVID-19 and the demand for medical care. Confinement has resulted in a disruption of work routines, boredom, depression, and changes in eating habits, among them consumption of coffee and tea. Following six databases, we examined articles tracking consumption of these beverages. Out of 472 articles, including 23 beverage entries, 13 matched our criteria. While no clear trend in coffee consumption during the coronavirus pandemic emerged (7 of 13 studies indicated an increase, accounting for 53.8%), tea consumption clearly increased (70% versus 30%). Considering the global health emergency continuum, more research is needed to better understand the paths underlying food choices and the ways those changes may influence health outcomes, including those related to COVID-19 disease

Human adipose stem cell differentiation is highly affected by cancer cells both in vitro and in vivo: implication for autologous fat grafting

Recent studies showed that mesenchymal stem cells derived from adipose tissue can promote tumour progression, raising some concerns regarding their use in regenerative medicine. In this context, we co-cultured either SAOS2 osteosarcoma or MCF7 breast cancer cells with human adipose stem cells (hASCs), in order to evaluate potential effects of cancer cells on hASCs differentiation, in vitro and in vivo. In this study we observed that both SAOS2 and MCF7 cell lines induced an increase in hASCs proliferation, compared to hASCs alone, but, surprisingly, neither changes in the expression of CD90, CD29, CD324 and vimentin, nor variations in the Twist and Slug mRNAs were detectable. Noteworthy, SAOS2 and MCF7 cells induced in hASCs an upregulation of CD34 expression and Stemness genes, including OCT3/4, Nanog, Sox2 and leptin, and a decrease in angiogenic factors, including CD31, PDGFα, PDGFRα, PDGFRβ and VEGF. SMAD and pSMAD2/3 increased only in hASCs alone. After 21 days of co-culture, hASCs differentiated both in adipocytes and endothelial cells. Moreover, co-injection of MCF7 cells with hASCs led to the formation of a highly vascularized tumour. Taken together our findings suggest that mesenchymal stem cells, under tumour cell induction, do not differentiate in vitro or facilitate the angiogenesis of the tumour in vivo, thus opening interesting new scenarios in the relationship between cancer and stem cells. These findings may also lead to greater caution, when managing autologous fat grafts in cancer patients

Decoding the historical tale: COVID-19 impact on haematological malignancy patients-EPICOVIDEHA insights from 2020 to 2022

The COVID-19 pandemic heightened risks for individuals with hematological malignancies due to compromised immune systems, leading to more severe outcomes and increased mortality. While interventions like vaccines, targeted antivirals, and monoclonal antibodies have been effective for the general population, their benefits for these patients may not be as pronounced.Peer reviewe

Come divulgare l’archeologia. L’esempio dei laboratori di preistoria dell’Associazione Culturale ArcheoIdea

Presentazione delle attività di valorizzazione e divulgazione del patrimonio archeologico preistorico nel territorio molisano sviluppate dall'Asociazione ArcheoIdea di Iserni

Come divulgare l’archeologia. L’esempio dei laboratori di preistoria dell’Associazione Culturale ArcheoIdea

Presentazione delle attività di valorizzazione e divulgazione del patrimonio archeologico preistorico nel territorio molisano sviluppate dall'Asociazione ArcheoIdea di Iserni

Assessment of noise exposure in primary school environment

Nowadays elementary school teachers and preschool often complain about the noise pollution into the classrooms, which could be an occupational risk for them. In this cross-selection study are evaluated the acoustic climate of classrooms through the measurement of noise levels and reverberation time. These surveys were conducted in 24 classrooms belonging to three elementary schools or to a preschool one. By noise levels measurements it was evident a noise pollution problem, which depended on the structural requirements of the classrooms or on the type of activity carried out. We have obtained a minimum value of Leq dB (A) 61.9 and the maximum of Leq dB (A) 103.4, with an overall median of 75 dB (A). The study findings indicated that 15.9% of elementary school teachers and 31.25% in preschool ones are exposed to Leq dB(A) values (exceeding the action level established by Legislative Decree, 81/08) ​ that could cause vocal or auditory disorders

Isernia La Pineta: storie di cacciatori

none6Articolo divulgativo sulle ricerche interdisciplinari condotte nel sito pleistocenico di Isernia La Pineta.noneARZARELLO M; DI NUCCI A; LEMBO G; MINELLI A; THUN HOHENSTEIN U.; PERETTO CArzarello, Marta; DI NUCCI, Annarosa; Lembo, Giuseppe; Minelli, A; THUN HOHENSTEIN, Ursula; Peretto, Carl