Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
See detailFunctions of Binary Variables and Nonlinear 0-1 Optimization
Crama, Yves ULg

Conference (2010, April 29)

Detailed reference viewed: 21 (6 ULg)
Full Text
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.

Detailed reference viewed: 6 (1 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 25 (1 ULg)
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 ▲]

Detailed reference viewed: 152 (45 ULg)
Full Text
Peer Reviewed
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 ▲]

Detailed reference viewed: 115 (15 ULg)
Full Text
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 ▲]

Detailed reference viewed: 60 (15 ULg)
See detailFundamental and practical approaches to increase biocontrol efficacy
Jijakli, Haissam ULg; Ongena, M.; Höfte, M. et al

Book - IOBC/WPRS publisher (2007)

Detailed reference viewed: 26 (7 ULg)
See detailFundamental Astronomy -- H. Karttunen, P. Kröger, H. Oja, M. Poutanen et K. J. Donner
Manfroid, Jean ULg

in Ciel et Terre (1989), 105

Not Available

Detailed reference viewed: 22 (0 ULg)
See detailFundamental definitions of ship and its stability
Marchal, Jean ULg

Learning material (1996)

Detailed reference viewed: 15 (4 ULg)
Full Text
Peer Reviewed
See detailThe fundamental I.D.'s and their associated problems
Denis, Brigitte ULg; Leclercq, Dieudonné ULg

in Lowyck, Jan (Ed.) Modelling I.D. Research, Proceedings of the first workshop of the special interest group on instructional design of EARLI, Leuven, June 17-19 (1994)

Detailed reference viewed: 24 (4 ULg)
Full Text
Peer Reviewed
See detailFundamental Limitations of High Contrast Imaging Set by Small Sample Statistics
Mawet, D.; Milli, J.; Wahhaj, Z. et al

in Astrophysical Journal (2014), 792

In this paper, we review the impact of small sample statistics on detection thresholds and corresponding confidence levels (CLs) in high-contrast imaging at small angles. When looking close to the star ... [more ▼]

In this paper, we review the impact of small sample statistics on detection thresholds and corresponding confidence levels (CLs) in high-contrast imaging at small angles. When looking close to the star, the number of resolution elements decreases rapidly toward small angles. This reduction of the number of degrees of freedom dramatically affects CLs and false alarm probabilities. Naively using the same ideal hypothesis and methods as for larger separations, which are well understood and commonly assume Gaussian noise, can yield up to one order of magnitude error in contrast estimations at fixed CL. The statistical penalty exponentially increases toward very small inner working angles. Even at 5-10 resolution elements from the star, false alarm probabilities can be significantly higher than expected. Here we present a rigorous statistical analysis that ensures robustness of the CL, but also imposes a substantial limitation on corresponding achievable detection limits (thus contrast) at small angles. This unavoidable fundamental statistical effect has a significant impact on current coronagraphic and future high-contrast imagers. Finally, the paper concludes with practical recommendations to account for small number statistics when computing the sensitivity to companions at small angles and when exploiting the results of direct imaging planet surveys. [less ▲]

Detailed reference viewed: 22 (3 ULg)
Peer Reviewed
See detailFundamental property and functional aptitude relationships in emulsion and foam applications of amphiphilic compounds
Razafindralambo, Hary ULg

Conference (2013, April 11)

Amphiphilic compounds are issued of a combination of two opposite entities, covalently assemblied within a single structure. By the diversity of the origin, class, number of monomer and substitute, size ... [more ▼]

Amphiphilic compounds are issued of a combination of two opposite entities, covalently assemblied within a single structure. By the diversity of the origin, class, number of monomer and substitute, size, linker or spacer, stereochemistry of the molecular entities, their chemical structure may be very different but also close each other. However, they may fulfill the same role in reducing surface and interfacial free energy in dynamic or static ways, ensuring especially the formation of dispersed systems like emulsion and foam. If the relationships between the structural variable and fundamental properties are strictly chemical residue dependent, those between fundamental and functional aptitudes are not necessarily. In this case, general and universal rules may exist, whatever the kind of amphiphilic compounds. In order to achieve a rational design for any expected functionality, we attempt to find out some predictive and conception rules from a lot of screening data of fundamental and functional properties. In this communication, some correlations between fundamental data related to surface and interfacial properties, measured by molecule adsorption or spreading under dynamic or static mode, in compression or dilation of adsorbed or spread film, and emulsifying and foaming performances of various bio-based surfactants will be presented. [less ▲]

Detailed reference viewed: 28 (10 ULg)
Full Text
Peer Reviewed
See detailA fundamental study of the inception of motion of coarse sediments
Duma, Diana ULg; Erpicum, Sébastien ULg; Archambeau, Pierre ULg et al

in Proceedings of 2013 IAHR World Congress (2013, September)

This research aims to provide new knowledge about the inception of motion in rivers with coarse sediments and, possibly, macro-roughness flow regime, for which, so far, civil and environmental engineers ... [more ▼]

This research aims to provide new knowledge about the inception of motion in rivers with coarse sediments and, possibly, macro-roughness flow regime, for which, so far, civil and environmental engineers face much uncertainty in the determination of threshold hydraulic conditions for sediment transport. The threshold conditions have to be clearly defined, at the theoretical level, and well identified, in experimental tests. Therefore, a specific program of laboratory experiments has been designed. It relies on two complementary laboratory flumes of, respectively, 6m and 20m in length (discharge up to 100 l/s, slope between 0 and 4%). Three different thresholds have been defined to distinguish between the following four states: no motion, vibration of stone, local motion, and large scale motion. Based on experimental tests conducted so far in the smaller flume, velocity profile and turbulence intensity measured in quasi-uniform and non-uniform flow conditions have been correlated with the inception of motion. Flow velocity was measured using UVP transducers. In this paper, the results of a first phase of the study are presented, with the aim of validating the experimental setup, procedure and instrumentation. They focus particularly on the feasibility of collecting the relevant flow variables (shear velocity, turbulence) from a limited number of pointwise velocity measurements. [less ▲]

Detailed reference viewed: 61 (11 ULg)
Peer Reviewed
See detailFundamentals and biotechnological aspects of cold-adapted enzymes
Gerday, Charles ULg; Collins, Tony; D'Amico, Salvino et al

Conference (2006)

Detailed reference viewed: 5 (0 ULg)
Full Text
See detailFundamentals of Cold-Adapted Enzymes
Collins, T.; Roulling, Frédéric ULg; Piette, Florence ULg et al

in Margesin, R.; Schinner, F.; Gerday, Charles (Eds.) et al Psychrophiles: from Biodiversity to Biotechnology (2008)

Detailed reference viewed: 36 (14 ULg)
See detailFundamentals of Cold-Adapted Enzymes
D'Amico, Salvino ULg

Scientific conference (2007)

Detailed reference viewed: 6 (0 ULg)
Full Text
See detailFundamentals of finite elements
Debongnie, Jean-François ULg

Book published by Les Editions de l'Université de Liège (2003)

This book presents the text of an introductory course on finite element methods. As written by a member of the Aerospace Laboratory of the University of Liège, it reflects the general philosophy of this ... [more ▼]

This book presents the text of an introductory course on finite element methods. As written by a member of the Aerospace Laboratory of the University of Liège, it reflects the general philosophy of this pioneering research team. [less ▲]

Detailed reference viewed: 146 (27 ULg)
Full Text
Peer Reviewed
See detailFundamentals of transformed skeletal muscle used for cardiac assistance. An overview
Radermacker, M. A.; Chachques, J. C.; Sluse, Francis ULg et al

in Research in Surgery (1995), 7

Detailed reference viewed: 15 (6 ULg)