Search results for "Tonne"

Methane oxidation at a surface-sealed boreal landfill.

2009

Abstract Methane oxidation was studied at a closed boreal landfill (area 3.9 ha, amount of deposited waste 200,000 tonnes) equipped with a passive gas collection and distribution system and a methane oxidative top soil cover integrated in a European Union landfill directive-compliant, multilayer final cover. Gas wells and distribution pipes with valves were installed to direct landfill gas through the water impermeable layer into the top soil cover. Mean methane emissions at the 25 measuring points at four measurement times (October 2005–June 2006) were 0.86–6.2 m 3  ha −1  h −1 . Conservative estimates indicated that at least 25% of the methane flux entering the soil cover at the measuring…

EPIDEMIOLOGY OF BOUTONNEUSE FEVER IN WESTERN SICILY

1986

The distribution and prevalence of spotted fever group rickettsial infection in the ixodid dog tick Rhipicephalus sanguineus were found to occur at a rate of 19.7% with variation related to geographic and sociooccupational factors. A higher rate of infection was demonstrated in ticks removed from dogs associated with documented cases of boutonneuse fever. The results fit into available clinical and seroepidemiologic data on Rickettsia conorii infection in western Sicily.

Initial indicator analysis of bioethylen production pathways

2018

Abstract Circular economy and bioeconomy factors has driven the economy sectors towards sustainable choices. Chemical industry, as stated by the Joint Research Centre of the European Commission, has a potential to reduce 36 % of the greenhouse gas (GHG) emissions by 2050 [1] mainly linked with introduction of emerging energy technologies. Ethylene, chlorine, ammonia and hydrogen are important chemicals for such reduction as they are the most worldwide produced chemicals (16 % of the total production in 2050 for ethylene, 11 % for chlorine and 6 % for ammonia). Meanwhile planned GHG reduction potential for these chemicals, through introduction of compression and separation technologies, is e…

Interleukin-12 in Human Boutonneuse Fever Caused by Rickettsia conorii

2000

Interleukin (IL)-12 contributes to the resistance against a number of intracellular pathogens. We examined the potential biological role of IL-12 by studying peripheral blood mononuclear cells (PBMC), its production and its effect on cytokine synthesis in 20 Sicilian patients with boutonneuse fever (BF) caused by Rickettsia conorii. Data indicate that PBMC from acute BF patients were able to produce IL-12 in response to in vitro stimulation with rickettsial antigen (Ag): this production was higher than that detected in healed patients. Monocytes were the main source of IL-12 by PBMC from BF patients. IL-12 secretion by in vitro Ag-stimulated PBMC from BF patients was potentiated by recombin…

Subclinical Infections with Boutonneuse Fever in Western Sicily

1985

Mediterranean spotted fever: clinical and laboratory characteristics of 415 Sicilian children

2006

Abstract Background Mediterranean spotted fever (MSF) is an acute febrile, zoonotic disease caused by Rickettsia conorii and transmitted to humans by the brown dogtick Rhipicephalus sanguineus. Nearly four hundred cases are reported every year (mainly from June to September) on the Italian island of Sicily. The aim of the study was to analyze the clinical and laboratory characteristics of patients with MSF and the efficacy of the drugs administered. Methods Our study was carried out on 415 children with MSF, during the period January 1997 – December 2004, at the "G. Di Cristina" Children's hospital in Palermo, Sicily, Italy. On admission patients' clinical history, physical and laboratory e…

Detection of natural killer T cells in mice infected with Rickettsia conorii.

2013

Little information is available regarding the role of natural killer T (NKT) cells during the early stage of Rickettsia conorii infection. Herein, C3H/HeN mice were infected with the Malish 7 strain of R. conorii. Splenocytes from these mice were analysed in the early stage of the infection by flow cytometry and compared with uninfected controls. Our results showed an increase in NKT cells in infected mice. Additionally, NKT interleukin (IL)-17(+) cells increased three days after infection, together with a concurrent decrease in the relative amount of NKT interferon (IFN)-γ(+) cells. We also confirmed a higher amount of NK IFN-γ(+) cells in infected mice. Taken together, our data showed tha…