Search results for "LAB"

Temperature effects explain continental scale distribution of cyanobacterial toxins

2018

Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their potency. Most studies examine the relationship between individual toxin variants and environmental factors, such as nutrients, temperature and light. In summer 2015, we collected samples across Europe to investigate the effect of nutrient and temperature gradients on the variability of toxin production at a continental scale. Direct and indirect…

The Design Towards a Collaborative Subscription Service : The Case of The Finnish Newspaper Industry

2020

The newspaper industry is challenged with its business models. To stabilize revenues, publishers opted for digital subscriptions for generating additional revenue streams. However, digital subscriptions showcase limited success. News aggregator platforms may promise publishers a pool of paying readers. But platform fees and the loss of customer relationships enact barriers among publishers to join. This study proposes a software prototype based on design science research to address the aforementioned shortcomings by deriving design principles for a collaborative subscription service. Building on the strategic alliance, digital platform and business model literature, this research aims to id…

Coordination of complex operations over organisational boundaries

2010

Finns as mobile maritime labor in coastal ports of the United Kingdom, 1850–1930

2018

La migración femenina, el trabajo doméstico asalariado y la violación de los derechos humanos

2015

The feminization of migrations, especially in the Mediterranean countries of Europe, is associated with new forms of exploitation of migrant labor. This article aims to analyze from this point of view the market of domestic and care work of migrant women in the homes of Italian families, placing it in relation to the deficiencies of national social policies. The analysis of this phenomenon in the Italian context - developed with the support of a series of interviews with migrant workers - reveals about these women and their families of origin the violation of certain fundamental human rights : primarily the right to the family unity, bound by the rules of family reunification, by the cohabi…

LINGUAGGIO E MULTIMODALITA'. GESTUALITA' E ORALITA' NELLE LINGUE VOCALI E NELLE LINGUE DEI SEGNI

2009

Il libro esplora la multimodalità nel linguaggio attraverso un’analisi comparata delle forme e delle funzioni del gesto nelle lingue vocali e nelle lingue dei segni. Le lingue sono multimodali perché utilizzano diversi tipi di indici gestuali nell’espressione linguistica veicolando dimensioni del significato che spesso sono assenti nel parlato o nel flusso segnico. Attraverso questo confronto si rileva quanto le lingue vocali siano anche gestuali e le stesse lingue dei segni si servano di un’oralità fatta di suoni e rumori non linguistici. Utilizzando gli studi sui neuroni specchio e sulle interconnessioni neurologiche tra gesti e linguaggio si mostra come il gesto sia parte della comunicaz…

Il linguaggio degli uccelli: Aristotele e lo specifico fonetico del linguaggio umano

1996

A partire da Pagliaro e Belardi, padri fondatori degli studi italiani di fonetica greca, prevale la convinzione che lo specifico del linguaggio umano non si trovi su base fonetica. Spcifico del linguaggio sarebbe 'non la fonicità nè l'articolazione ma la funzione simbolica. Attraverso l'analisi minuziosa delle opere di Aristotele, il contributo si propone di sfatare questo mito. L'analisi è condotta sul linguaggio degli uccelli, in confronto al linguaggio fonetico umano. Il risultato è che, per quanto gli uccelli siano capaci come gli uomini di produrre voce articolata (dialektos) è questo è importanti a livello di continuità fra le specie e come smentita dell'antropocentrismo, il linguaggi…

Mécanisme d’absorption intestinale des acides gras à longue chaîne : rôle émergent du CD36

2012

International audience; Excessive lipid intake, associated with a qualitative imbalance, favors the development of obesity and associated diseases. Among the organs involved in lipid homeostasis, the small intestine remains the most poorly known although it is responsible for the lipid bioavailability and largely contributes to the regulation of postprandial hypertriglyceridemia. The mechanism of long chain fatty acid (LCFA) intestinal absorption is not totally elucidated. The synthesis of recent literature indicates that the intestine is able to adapt its absorption capacity to the fat content of the diet. This adaptation takes place through a fat-coordinated induction of LBP and apolipopr…

Valencians als Jocs Florals de Barcelona (1862-1893)

2012

Durant els anys 1862 i 1893 la presència i participació d’escriptors valencians en els certàmens coneguts amb el nom de Jocs Florals de Barcelona va ser notable. I també molt significativa, ja que sovint es produí a conseqüència de la invitació que els feien els germans catalans a ser membres del consistori de mantenidors. Una invitació que cal interpretar en termes de reconeixement, esperó i ajut, i que els valencians acceptaren de bon grat i reiteradament. Cosa que permeté que, literàriament parlant, pel consistori de mantenidors dels Jocs Florals de Barcelona passara el bo i millor, literàriament parlant, del segle XIX valencià. El present estudi repassa, detalla i valora quina fou aquel…

Biogenic Fenton process - A possible mechanism for the mineralization of organic carbon in fresh waters.

2020

To explore the mechanisms that mineralize poorly bioavailable natural organic carbon (OC), we measured the mineralization of OC in two lake waters over long-term experiments (up to 623 days) at different pH and iron (Fe) levels. Both the microbial and photochemical mineralization of OC was higher at pH acidified to 4 than at the ambient pH 5 or an elevated pH 6. During 244 days, microbes mineralized up to 60% of OC in the 10-mu m filtrates of lake water and more than 27% in the 1-mu m filtrates indicating that large-sized microbes/grazers enhance the mineralization of OC. A reactivity continuum model indicated that the acidification stimulated the microbial mineralization of OC especially i…