Search results for "heavy [dark matter]"

Influence of waste water in marine ecosystem: preliminary data on benthic foraminifera assemblages and metal concentration in marine sediments

2007

Preliminary data on correlations between aberrant benthic foraminifera and metal concentrations in sediments from Palermo and Termini gulfs (Sicily)

2005

My eden, my hell: Biblical allusions in the lyrics of Sonata Arctica

2010

  Metallimusiikkia on suuresta suosiostaan huolimatta tutkittu melko vähän tieteellisesti. Koska populaarimusiikki, johon metalli Suomessa kuuluu, on olennainen arjen osa etenkin nuorilla, sen tutkiminen voi antaa uusia näkökulmia niin musiikin, kirjallisuuden kuin kulttuurinkin tutkimukseen. Sanoitusten tieteellinen tarkastelu on myös tarpeen vahvistamaan tai kumoamaan ennakkokäsityksiä, joita vahvoja mielipiteitä herättävä metallimusiikki aiheuttaa. Uskonnollisten asenteiden kartoittaminen sekulaarisessa metallimusiikissa mahdollistaa sen, että stereotyyppiset oletukset metallin ja kristillisyyden välisistä suhteista voidaan arvioida uudelleen tutkimustiedon valossa. Tutkimuksessani metal…

Bibliometric analysis of European publications between 2001 and 2016 on concentrations of selected elements in mushrooms.

2020

This article presents a bibliometric study of 200 European publications released between 2001 and 2016, about the contamination of mushrooms by selected elements. The analysis includes figures on the type of analyte, its concentration, the species of fungi, and its country of origin. In the literature review, 492 species of mushrooms (wild-growing and cultured) found in 26 European countries and their concentration of 74 associated elements were analysed. The papers, which dealt mainly with the heavy metal (Cd, Cu, Fe, Pb, and Zn) concentrations of mushrooms, primarily came from Turkey, Poland, Spain, and the Czech Republic. More than 50% of the publications provided data about edible mushr…

Prediction models based on soil properties for evaluating the uptake of eight heavy metals by tomato plant (Lycopersicon esculentum Mill.) grown in a…

2021

The aim of this study is to design de novo prediction models in order to gauge the likely uptake of eight heavy metals (Al, Cr, Cu, Fe, Mn, Ni, Pb and Zn) by Lycopersicon esculentum, the tomato plant. Uptake was assessed within the plant’s root, stem, leaf and fruit tissues, respectively. The plant was cultivated in soil amended by different application rates of sewage sludge, i.e. 0, 10, 20, 30 and 40 g/kg. The roots exhibited markedly elevated heavy metal concentrations compared to the above-ground plant components, with the exception of the quantity of Ni in the leaves. Apart from Al, Fe and Mn, a bioconcentration factor >1 was identified for all heavy metals. Excluding Ni in the leaves,…

BIOMONITORIG ACTIVITIES OF “COMPRENSORIO DI PACE DEL MELA”.ANALYSES OF AIR QUALITY DATA

2007

The “Assessorato Territorio e Ambiente” of the Regional Sicilian Government and the “Ingegneria e Tecnologie Agro Forestali” (ITAF) Department, Palermo University, have been involved in a study (D.R.S. N° 473) concerning the occurrence of environmental pollution by heavy metals in the "Comprensorio territoriale di Pace del Mela". The involved local administrations (“comuni”) in the area of interest are: Condrò, Gualtieri Sicaminò, Milazzo, Pace del Mela, S.Filippo del Mela, Santa Lucia del Mela, San Pier Niceto. Naturalistic aspects and landscape relevance of the “Pace del Mela” area is supported by the existence of three Natural Reserves, twelve Sites of Community Interest (S.I.C.) and a Z…

Long-term impact of 19 years' farmyard manure or sewage sludge application on the structure, diversity and density of the protocatechuate-degrading b…

2012

International audience; Impact of long-term biosolids application on soil-living micro-organisms key players of ecosystemic services is scarcely reported. Here, the impact of the 19 year-long application of farmyard manure (FM) and sewage sludge (SS) organic fertilisation regimes on the protocatechuate-degrading bacterial (pca) community was estimated by comparison to a mineral fertilisation regime (U). The structure, diversity and density of the pca community were determined using pcaH, a gene encoding the protocatechuate 3,4-dioxygenase. Ten years after the last application, the structure of the pca community in soils amended with 55100 (100 t/ha/2 years) and to a lesser extent with FM (1…

Biomethylation of Heavy Metals in Soil and Terrestrial Invertebrates

2009

Heavy metals play a prominent role in the lives of all organisms. They can be essential, as in the cases of iron, manganese, nickel and copper, which are needed to obtain proper enzyme conformation and reactivity. Some heavy metals are toxic to organisms, such as mercury or cadmium. Often, these metals are rarely accessible in their inorganic form. After biological transformation into organometallic compounds, they exhibit increased toxicity and penetration into animal tissue is facilitated. The alkylation mechanisms of metals (especially mercury) performed by aquatic microorganisms have been well documented. The organometallic food chain from fish to humans has also been investigated. Howe…

Increased adhesion and activation of polymorphonuclear neutrophil granulocytes to endothelial cells under heavy metal exposure in vitro.

1994

Heavy metals have been implicated in the mechanisms of endothelial damage. Influences of heavy metal ions on diverse cell types have been studied using a variety of in vitro and in vivo methods. Polymorphonuclear neutrophil granulocytes (PMNs) have physiological and pathological functions, including the modulation of adhesion to and destruction of endothelial cells (ECs). PMNs were studied during interaction with human umbilical vein ECs under exposure to zinc, nickel and cobalt using an in vitro model. We studied adhesion processes with the help of a computer-controlled image-analyzing system and examined the activation of PMNs by quantification of leukotriene B4 (LTB4) release. The biphas…

Magnetic susceptibility and heavy metal content in dust from the lime plant and the cement plant in Opole Voivodeship

2012

Magnetic Susceptibility and Heavy Metal Content in Dust From the Lime Plant and the Cement Plant in Opole Voivodeship Until now, dust arising from lime manufacture has been considered harmless to the environment so it has been investigated marginally from the standpoint of environmental protection, especially when it came to magnetic properties and heavy metal content. The aim of the research was filling the gap in this area. The research comprised measurements of magnetic susceptibility, the content of heavy metals, reaction (pH) and specific conductivity of lime dust and also raw material and fuel used for lime production. The samples were taken from one of the lime plants located in Opol…