Search results for "CIDI"
showing 10 items of 778 documents
Using natural analogues to investigate the effects of climate change and ocean acidification on Northern ecosystems
2018
AbstractNorthern oceans are in a state of rapid transition. Still, our knowledge of the likely effects of climate change and ocean acidification on key species in the food web, functionally important habitats and the structure of Arctic and sub-Arctic ecosystems is limited and based mainly on short-term laboratory studies on single species. This review discusses how tropical and temperate natural analogues of carbonate chemistry drivers, such as CO2 vents, have been used to further our knowledge of the sensitivity of biological systems to predicted climate change, and thus assess the capacity of different species to show long-term acclimation and adaptation to elevated levels of pCO2. Natur…
Acetylcholinesterase activity in juvenileCiona intestinalis(Ascidiacea, Urochordata) after exposure to tributyltin
2012
The acetylcholinesterase (AChE) activity has been studied in 4-day post-fertilization juveniles of Ciona intestinalis exposed to tributyltin (TBT) at 10-5 M using the histochemical method of Karnovsky and Roots. Relative to vertebrate tissues and organs, the development of adult form of ascidians is interesting, because the analysis of many nuclear genes indicated that the ascidians are the closest living relatives of the vertebrates. Therefore, toxicity research using different approaches could provide data for comparative studies with vertebrates. AChE is over-expressed under chemical stress and in some diseases of vertebrates. Therefore, AChE is considered a biomarker of environmental co…
Analisi chimiche di campioni di pasta biofortificata
2019
La pasta è l’alimento di origine italiana più conosciuto nel mondo e uti- lizzato ampiamente, essendo una buona fonte di carboidrati a basso indice glicemico. La produzione della pasta “biofortificata” rappresenta una strategia semplice per aumentare l’apporto nella dieta di fibre, proteine, etc. Lo studio proposto vede l’analisi chimica di campioni di pasta biofortificata, ottenuta ag- giungendo alla semola di grano dura il 40% di lenticchie di due diverse origini. In particolare per la preparazione della pasta biofortificata, è stato utilizzato un campione di lenticchie che abbiamo definito “commerciale” (cv Easton, ori- gine Canada), insieme ad un campione di lenticchie prodotte a Ragusa…
Il Breviario di Simone Beccadelli della Cattedrale di Palermo (1453). Stagione 2: de Lignamine e Riggio
2022
All’arcivescovo Beccadelli è riferito un Breviarium miniato a più mani variamente riconosciute. L’intervento ricostruisce, identificando due stemmi post confezione non appartenenti al committente (1. goffrato sul taglio concavo, 2. c. VIv), altrettanti inediti passaggi di mano del ms. (XV-XVII sec.) An illuminated Breviarium by several hands variously recognized is referred to Archbishop Beccadelli. The work reconstructs, by identifying two post-package coats of arms not belonging to the patron (1. embossed on the concave cut, 2. c. VIv), as many unpublished hand transitions of the ms. (15th-17th cent.)
The ascidian prophenoloxidase activating system
2009
Phenoloxidases/tyrosinases initiate melanin synthesis in almost all organisms, and are involved in different biological activities such as the colour change of human hair and the browning or blackening of fruit skin etc. In many invertebrates, defence reactions are linked to phenoloxidase activity and/or melanization. Contacts with foreign molecules are able to trigger the prophenoloxidase (proPO) system that requires serine protease cleavage for activating the zymogen to phenoloxidase (PO). It is generally accepted that the proPO system is fully expressed in arthropods, and, recently, progress in the regulation of crustacean and insect proPO activation steps have been achieved. After cells…
Major ions and trace elements composition of rainwater around the two industrial areas of Milazzo and Priolo Gargallo (Sicily - Italy)
2023
This database shows the concentration of major ions and trace elements in rainwater from two polluted industrial areas of Sicily, Milazzo and Priolo Gargallo, collected from June 2018 to July 2019, through a network of 11 bulk collectors to sample bulk atmospheric deposition, for a total of 131 samples collected. Different sources, both natural and anthropogenic, for both major ions and trace elements have been recognised. This study also highlighted some critical issues with common methods of sampling and analysing atmospheric deposition. The analysis and comparison of two different aliquots, filtered and unfiltered rainwater, has shown that the filtration method removes from the sample a …
Il sistema di attivazione della profenolossidasi nell'ascidia Clona intestinalis (L.) durante il processo infiammatorio.
2011
Burvja māceklis: apzinātās sapņošanas māksla. Sapņošana kā dzīves atkārtošana modernā pasaulē
2021
Šī pētījuma mērķis ir interpretēt un analizēt specifisku tiešsaistes izglītošanos, kuras nolūks ir privāta dalībnieku apmācība par apzinātību miega laikā. Pētījums koncentrējas uz izpratni pat to, ko apzinātība nozīmē aizrautīgiem sapņotājiem, kāda ir šīs pieredzes loma ikdienas dzīvē, un kā atšifrējams virzītājspēks, kas nosaka priekšrokas došanu un apņemšanos šādi sapņot. Es cenšos pētīt apzināto sapņošanu, apvienojot naratīvas izpausmes, retorikas, radošu metaforu un cilvēka kapitāla un iztēles pārpilnības perspektīvas. Saskaņā ar noteikto četrdaļīgo shēmu, es grupēju centrālās tēmas, kas rodas no pastāvošās spriedzes tajā, kas tiek uzskatīts par apzinātību. Šīs tēmas ir: sapņotāju tiekš…
Degradazione di pesticidi organofosforici in matrici ambientali
2008
Matrici quali acqua, suolo ed aria sono costantemente soggette a forti pressioni antropiche. I pesticidi pur avendo apportato grandi benefici alle attività agricole influiscono negativamente sugli equilibri degli ecosistemi. Circa 85-90% dei principi attivi applicati in agricoltura non raggiunge gli organismi a cui sono destinati, ma viene disperso nell’ambiente. In tale contesto l’individuazione di microrganismi deputati alla loro degradazione diventa un importante mezzo per la salvaguardia ambientale e della salute umana. Lo scopo del presente lavoro è stato quello di isolare batteri del suolo capaci di degradare composti organofosforici, i quali rivestono una notevole importanza nelle pr…