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See detailFunctionalized plasmonic gold nanoparticles for optoacoustic cancer detection
Schol, Daureen ULg; Fleron, Maximilien ULg; Greisch, Jean-François et al

Poster (2008, September 12)

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See detailFunctionalized polypropylenes as efficient dispersing agents for carbon nanotubes in a polypropylene matrix; application to electromagnetic interference (EMI) absorber materials
Thomassin, Jean-Michel ULg; Huynen, Isabelle; Jérôme, Robert ULg et al

in Polymer (2010), 51

Carbon nanotubes (CNTs) have been dispersed within polypropylene with the purpose to prepare electromagnetic interference (EMI) absorbers. In order to limit the reflectivity of the electromagnetic waves ... [more ▼]

Carbon nanotubes (CNTs) have been dispersed within polypropylene with the purpose to prepare electromagnetic interference (EMI) absorbers. In order to limit the reflectivity of the electromagnetic waves at the interface of the materials while achieving good absorbing properties, the CNTs concentration must be kept low (<3 wt%) which means that a perfect dispersion must be ensured. Since CNTs do not disperse well within apolar polymer matrices such as polypropylene, two compatibilizers bearing aromatic moieties, i.e. pyrene and pyridine, able to develop π-π interactions with the CNTs have been synthesized starting from polypropylene grafted by maleic anhydride (PP-g-MA). A masterbatch is first prepared by dispersion of CNTs within the compatibilizers by melt-mixing and coprecipitation followed by further dispersion within the PP matrix. Rheological and electromagnetic characterizations of the nanocomposites have demonstrated the efficiency of these compatibilizers to promote the dispersion of CNTs in PP and the good EMI shielding effectiveness of the PP matrix at a low CNTs concentration (2 wt%). [less ▲]

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See detailFunctionally active macrophage-derived myeloperoxidase in the skin of drug-induced toxic epidermal necrolysis.
Paquet, Philippe ULg; De Groote, Donat; Pierard, Gérald ULg

in Dermatology : International Journal for Clinical & Investigative Dermatology (2010), 220(3), 201-7

BACKGROUND: Drug-induced toxic epidermal necrolysis (TEN) probably results from a complex and specific immune cell reaction involving lymphocytes and macrophages. OBJECTIVE: To assess the functional role ... [more ▼]

BACKGROUND: Drug-induced toxic epidermal necrolysis (TEN) probably results from a complex and specific immune cell reaction involving lymphocytes and macrophages. OBJECTIVE: To assess the functional role of macrophages in TEN. METHODS: Immunohistochemistry was performed on biopsies from early blisters developed in 9 TEN patients. The amount of extracellular myeloperoxidase (MPO) was measured by ELISA in TEN blister fluid and serum. Controls were blister fluids taken from 9 second-degree burns. In addition, 3-chlorotyrosine (a specific marker of MPO activity) was searched for using liquid mass chromatography both in TEN and burn blister fluids. RESULTS: Immunohistochemistry revealed numerous CD68+ macrophages in 8/9 TEN patients; 5-20% of these cells and rare CD15+ neutrophils exhibited MPO immunoreactivity, while keratinocytes were negative. The amount of MPO was significantly higher in TEN blister fluid than in TEN serum, suggesting macrophage production of MPO in the skin. In addition, MPO was significantly more abundant in TEN blister fluid than in burn blister fluid. 3-Chlorotyrosine was detected in 7/9 TEN blister fluids, but in only 2/9 burn blister fluids. DISCUSSION: MPO produced by macrophages was functionally active in most TEN patients, leading to the production of hypochlorous acid, a potent oxidative compound that alters keratinocytes. [less ▲]

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See detailFunctionele analyse van een piek uit Spiennes (Neolithicum)
Rots, Veerle ULg

Report (2007)

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See detailFunctionele en contrastieve aspecten van de woordvolgorde. Focusmarkering in het Frans en in het Nederlands
Rasier, Laurent ULg

in Fenoulhet, J. (Ed.) Neerlandistiek in contrast. Handelingen van het Zestiende Colloquium Neerlandicum (2007)

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See detailFunctioning of farm-grown timber value chains: Lessons from the smallholder-produced teak (Tectona grandis L.f.) poles value chain in Southern Benin
Aoudji, Augustin K.N.; Adégbidi, Anselme; Agbo, Valentin et al

in Forest Policy and Economics (2012), 15(February 2012), 98-107

The study examined the functioning of the smallholder-produced teak poles value chain in Southern Benin from an analytical perspective combining the governance structure, the institutional environment ... [more ▼]

The study examined the functioning of the smallholder-produced teak poles value chain in Southern Benin from an analytical perspective combining the governance structure, the institutional environment, and the distribution of consumer price among chain actors. The objective was to identify bottlenecks militating against improved functioning of the farm-grown timber value chains. A fieldwork was carried from August 2008 to September 2010, to identify the agents and the organisations involved in the value chain. Data were collected on the functions performed, the costs borne and the income received by each category of agent, the marketing channels within the value chain, the interactions among agents, the consumption of the product, and the role of the organisations connected to the value chain. This was done by combining semi-structured interviews, focus group meetings, and structured interviews. In addition, data were collected on the institutional environment from both primary and secondary sources. The following agents were involved in the value chain: nurserymen, planters, local intermediaries, brokers, traders, and consumers. The forest service was the main governmental organisation involved in the functioning of the value chain. The governance structure in the value chain was driven by a mixture of government and the market. Various weaknesses were found in the forest policy, the forest regulation and their implementation. Planters’ share of consumer price was lower than traders’ return. The relevant policy options to address these issues were discussed. [less ▲]

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See detailFunctioning Pituitary Adenomas
Beckers, Albert ULg; Daly, Adrian ULg

in Refetoff, Samuel; Weiss, Roy E (Eds.) Genetic diagnosis of endocrine disorders (2009)

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See detailFunctionlization and grafting of polylactide by click chemistry
Riva, Raphaël ULg; Croisier, Florence ULg; Jérôme, Christine ULg et al

Conference (2009, November 19)

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See detailFunctionlization of biodegradable aliphatic polyesters by mannose-residue for the design of surface-modified polymeric nanoparticles
Rieger, Jutta ULg; Stoffelbach, François; Stoilova, Olya et al

Conference (2005, June 01)

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See detail(Functionnal) analysis of hydrogen production in Chlamydomonas reinhardtii mitochondrial mutants
Lecler, Renaud ULg; Godaux, Damien ULg; Hamilton, Christopher ULg et al

Poster (2010, June 27)

Mitochondrial Chlamydomonas mutants for respiratory complexes present a decreased dark respiration and apparent yield of photosynthetic linear electron flow. They accumulate reducing power such as NAD(P)H ... [more ▼]

Mitochondrial Chlamydomonas mutants for respiratory complexes present a decreased dark respiration and apparent yield of photosynthetic linear electron flow. They accumulate reducing power such as NAD(P)H and show lower levels of ATP. Under restrictive conditions, like sulfur depletion and anoxia, Chlamydomonas is able to produce hydrogen towards the activation of a chloroplatic O2-sensitive Fe-hydrogenase which catalyses the reduction of electrons to H2. In this study we used an adapted Melis protocol to analyse hydrogen evolution of mitochondrial mutants. For this aim a simple-flask system was built with gaz collecting tubes. A parallel flask was used for GC analyses. [less ▲]

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See detailFunctions of Binary Variables and Nonlinear 0-1 Optimization
Crama, Yves ULg

Conference (2010, April 29)

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See detailFunctions of Subcellular Structures
Ghuysen, Jean-Marie ULg

in Bacq, Zenon Marcel (Ed.) Fundamentals of Biochemical Pharmacology (1970)

Studies of the structure and biosynthesis of bacterial walls are intimately associated with the mechanism of action of several antibacterial agents.

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See detailThe functions of weorðan and its loss in the past tense in Old and Middle English
Petré, Peter ULg

in English Language and Linguistics (2010), 14(3), 457-484

In this article, I relate the loss of weorðan in the past tense to the loss of an Old English grammatical subsystem that encouraged the expression of narrative by bounded sentence constructions. This type ... [more ▼]

In this article, I relate the loss of weorðan in the past tense to the loss of an Old English grammatical subsystem that encouraged the expression of narrative by bounded sentence constructions. This type of construction represents a situation as reaching its goal or endpoint, and serves to mark progress in a narrative (e.g. then he walked over to the other side). Instead of this system, from Middle English onwards a mixed system emerges with differently structured bounded sentence constructions as well as, increasingly, unbounded sentence constructions – which structure events as open-ended, usually by means of a progressive form (e.g. he was walking). I show how weorðan in Old English was strongly associated with the Old English system of bounded sentence constructions – an association with boundedness is not surprising given its meaning of ‘(sudden) transition into another state’. In the thirteenth century this rigid Old English system started to break down, as primarily evidenced by the disappearance of the time adverbial þa and the loss of verb-second. Wearð, being strongly associated with the old way of structuring narrative, decreased too and eventually disappeared. [less ▲]

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See detailFund Industry in Luxembourg
Sougné, Danielle ULg; Wijnandts, Jean-Charles ULg

Book published by Larcier (2013)

This book is to be placed in an unexploited niche in the fund industry literature: It has first to be distinguished from the main strand of the literature on mutual funds focusing on funds selection’s ... [more ▼]

This book is to be placed in an unexploited niche in the fund industry literature: It has first to be distinguished from the main strand of the literature on mutual funds focusing on funds selection’s methods and portfolio management strategies available to funds ‘managers’. This book aims at providing the readers with a comprehensive overview of the Luxembourg fund industry together with a better understanding of the mechanisms governing the interactions between its different actors. The goal is to enable the readers to better apprehend the functioning of industry as a whole from both a legal and practical perspective and to operate more efficiently within the industry. As a consequence, the book must be distinguished from practitioner–oriented compilations of legal texts and references. The contribution of renowned experts of fund industry in Luxembourg permitted to summarize the operating in Luxembourg. Consequently, this book aspires to become a reference on the topic. Students in Finance, Law and Management considering a career in the fund industry will benefit from this book by gaining a better understanding of fund industry as a whole, wich would improve their employability in this sector. [less ▲]

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See detailLa fundación vanguardista de la traducción
Willson, Patricia ULg

in Espacios de crítica y producción (1999), (25), 54-58

This article examines and contradicts some of the stereotypes in the field of criticism about the image of Borges as translator. From the collation of his translations of works by Faulkner, Joyce and ... [more ▼]

This article examines and contradicts some of the stereotypes in the field of criticism about the image of Borges as translator. From the collation of his translations of works by Faulkner, Joyce and Woolf, the relationship between these versions and his first essays and fictions is shown, especially the ones with a «criollista» tone. [less ▲]

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See detailFundamental and Applied Studies on Freeze-dried Vinegar Starter
Shafiei, Rasoul ULg

Doctoral thesis (2013)

Acetic acid bacteria (AAB) are used industrially to produce different kinds of bioproducts. AAB encounter very aggressive conditions during acetous fermentation (AF) including high acid and ethanol ... [more ▼]

Acetic acid bacteria (AAB) are used industrially to produce different kinds of bioproducts. AAB encounter very aggressive conditions during acetous fermentation (AF) including high acid and ethanol concentrations, low pH and also abrupt increases in temperature. In subtropics such as central and southern parts of Iran, fruits and also the by-products of the fruit processing industries are used to produce different kinds of foods. However, because of high temperature and deficiency in water resource, fermentation industries face many restrictions during spring and summer. One of the main problematic restrictions is the low productivity or the ceases of fermentation due to the use of non-thermotolerant microorganisms. In this case, initiation of a new fermentation run needs efficient starter. In previous studies in Walloon Center of Industrial Biology, Acetobacter senegalensis, a novel thermo-tolerant bacterium, was isolated and used to produce vinegar starter and acetic acid at high temperature. However, in those studies, the viability and vitality of the starter were not evaluated under stress conditions. In addition, since most kinds of industrial vinegars have low prices, the use of high-priced nutrients for the production of low quantity of starter is not commercially cost-effective. In the present study, with a deep look to the acetous fermentation requirements, we analyzed the fundamental and applied aspects of A. senegalenisis resistance to stress inducers. Proteomics-based techniques and flow cytometry methods in combination with different biomass production techniques were used to develop a fermentation process improving cell viability and vitality during freeze-drying process and revitalization procedure. In addition, the trend of cell senescence during storage of starter and its effect on some bio-molecules were studied. In the first part of the study, the quality of the produced biomass was improved in order to achieve an acetic acid tolerant biomass. Adaptive laboratory evolution technique (ALE) enabled cells to grow rapidly in higher concentration of acetic acid. The results of 2D-DiGE on the produced biomass revealed that structural and regulatory proteins were expressed differently under various conditions (Chapter II and III). Use of acetic acid in combination with glucose in a fed-batch fermentation mode could induce a physiological condition in A. senegalensis which was close to the physiological state of cells oxidizing ethanol. In addition, the presence of acetic acid in fermentation media could cause a cross-adaptation and improved the tolerance of cells to stressors (ethanol, low pH and acetic acid). Interestingly, by using this method for production of biomass, the rate of growth on ethanol improved significantly. In parallel to the first part of the study, we exhibited the influence of different stress on the produced biomass. Cell envelope integrity and respiration (dehydrogenase activity) were the two important targets for adverse effects of the stress. Assessment of the cell envelope integrity and respiration system of produced biomass by Multiparametric Flow Cytometry (MFC) method (Chapter II) demonstrated that the detrimental effects of ethanol and acetic acid depended on the carbon sources and fermentation conditions used for pre-adaptation. Respiration system and cell envelope integrity of cross-adapted iv cells were not compromised after exposure to different concentrations of ethanol and acetic acid. Thus, according to the obtained results, by using a mixture of acetic acid and glucose as carbon sources, it is possible to enhance not only the viability of cells but also induce tolerance to physicochemical stress during downstream process. Our investigation about the freeze-drying process provided a better understanding of lethal and sub-lethal damage to cells (Chapter IV). The results showed that drying process had the greatest effect on the viability and vitality of A. senegalensis especially by affecting on the cell envelope. In addition, entrance into viable but non-culturable state (VBNC) was initiated during the drying process and enhanced during storage period. Analysis of the stored cell proteome by 2D-DiGE and western blotting (Chapter V) revealed that high storage temperature could induce a kind of senescence in the cells by different modifications in cellular proteome such as insolubility, degradation and carbonylation of cellular proteins and shift of isoelectric point. Carbonylation of the proteins involved in transcriptional and translational process could cause cell death whereas VBNC formation at low storage temperature seemed to be due to other deteriorative reactions such as fatty acid peroxidation. At the end of this dissertation, the discussion (Chapter VI) provides a general overview of the results and compares our findings with earlier studies. Potential industrial applications are reviewed and suggestions for further research are made. [less ▲]

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