References of "1998"      in Complete repository Arts & humanities   Archaeology   Art & art history   Classical & oriental studies   History   Languages & linguistics   Literature   Performing arts   Philosophy & ethics   Religion & theology   Multidisciplinary, general & others Business & economic sciences   Accounting & auditing   Production, distribution & supply chain management   Finance   General management & organizational theory   Human resources management   Management information systems   Marketing   Strategy & innovation   Quantitative methods in economics & management   General economics & history of economic thought   International economics   Macroeconomics & monetary economics   Microeconomics   Economic systems & public economics   Social economics   Special economic topics (health, labor, transportation…)   Multidisciplinary, general & others Engineering, computing & technology   Aerospace & aeronautics engineering   Architecture   Chemical engineering   Civil engineering   Computer science   Electrical & electronics engineering   Energy   Geological, petroleum & mining engineering   Materials science & engineering   Mechanical engineering   Multidisciplinary, general & others Human health sciences   Alternative medicine   Anesthesia & intensive care   Cardiovascular & respiratory systems   Dentistry & oral medicine   Dermatology   Endocrinology, metabolism & nutrition   Forensic medicine   Gastroenterology & hepatology   General & internal medicine   Geriatrics   Hematology   Immunology & infectious disease   Laboratory medicine & medical technology   Neurology   Oncology   Ophthalmology   Orthopedics, rehabilitation & sports medicine   Otolaryngology   Pediatrics   Pharmacy, pharmacology & toxicology   Psychiatry   Public health, health care sciences & services   Radiology, nuclear medicine & imaging   Reproductive medicine (gynecology, andrology, obstetrics)   Rheumatology   Surgery   Urology & nephrology   Multidisciplinary, general & others Law, criminology & political science   Civil law   Criminal law & procedure   Criminology   Economic & commercial law   European & international law   Judicial law   Metalaw, Roman law, history of law & comparative law   Political science, public administration & international relations   Public law   Social law   Tax law   Multidisciplinary, general & others Life sciences   Agriculture & agronomy   Anatomy (cytology, histology, embryology...) & physiology   Animal production & animal husbandry   Aquatic sciences & oceanology   Biochemistry, biophysics & molecular biology   Biotechnology   Entomology & pest control   Environmental sciences & ecology   Food science   Genetics & genetic processes   Microbiology   Phytobiology (plant sciences, forestry, mycology...)   Veterinary medicine & animal health   Zoology   Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences   Chemistry   Earth sciences & physical geography   Mathematics   Physics   Space science, astronomy & astrophysics   Multidisciplinary, general & others Social & behavioral sciences, psychology   Animal psychology, ethology & psychobiology   Anthropology   Communication & mass media   Education & instruction   Human geography & demography   Library & information sciences   Neurosciences & behavior   Regional & inter-regional studies   Social work & social policy   Sociology & social sciences   Social, industrial & organizational psychology   Theoretical & cognitive psychology   Treatment & clinical psychology   Multidisciplinary, general & others     Showing results 121 to 140 of 2401     2 3 4 5 6 7 8 9 10 11 12     Positive parity pentaquarks in a Goldstone boson exchange modelStancu, Floarea in Physical Review. D : Particles and Fields (1998), D58We study the stability of the pentaquarks $uudd\overline{Q}$, $uuds\overline{Q}$ and $udss\overline{Q}$ ($Q = c$ or $b$) of positive parity in a constituent quark model based on Goldstone boson exchange ... [more ▼]We study the stability of the pentaquarks $uudd\overline{Q}$, $uuds\overline{Q}$ and $udss\overline{Q}$ ($Q = c$ or $b$) of positive parity in a constituent quark model based on Goldstone boson exchange interaction between quarks. The pentaquark parity is the antiquark parity times that of a quark excited to a p-shell. We show that the Goldstone boson exchange interaction favors these pentaquarks much more than the negative parity ones of the same flavour content but all quarks in the ground state. We find that the nonstrange pentaquarks are stable against strong decays. [less ▲]Detailed reference viewed: 9 (4 ULg) Les nouveaux marqueurs de l'infarctus du myocardeChapelle, Jean-Paul Conference (1998, October 10)Detailed reference viewed: 6 (0 ULg) X-ray analysis of the NMC-A beta-lactamase at 1.64-A resolution, a class A carbapenemase with broad substrate specificitySwaren, Peter; Maveyraud, Laurent; Raquet, Xavier et alin Journal of Biological Chemistry (1998), 273(41), 26714-26721Detailed reference viewed: 14 (0 ULg) Acromegalie : OnderzoekenBeckers, Albert ; Stevenaert, Achille in Medical News (1998), 51Detailed reference viewed: 8 (0 ULg) Acromégalie : Examens complémentairesBeckers, Albert ; Stevenaert, Achille in Medical News (1998), 51Detailed reference viewed: 15 (0 ULg) Canonical variabes of aquatic bryophyte combinations for predicting water trophic level.Vanderpoorten, Alain ; Palm, Rodolphe in Hydrobiologia (1998), 386Detailed reference viewed: 4 (0 ULg) 4-Methoxypyridine N-Oxide: a new regulator for the controlled free radical polymerization of methyl methacrylateDetrembleur, Christophe ; Lecomte, Philippe ; Caille, Jean-Raphaël et alin Macromolecules (1998), 31(20), 7115-7117Detailed reference viewed: 42 (11 ULg) Acromégalie : Diagnostic différentielBeckers, Albert ; Stevenaert, Achille in Medical News (1998), 50Detailed reference viewed: 11 (0 ULg) Acromegalie : Differentiaal-diagnoseBeckers, Albert ; Stevenaert, Achille in Medical News (1998), 50Detailed reference viewed: 15 (0 ULg) Electrochemical synthesis of polypyrrole nanowiresJérôme, Christine ; Jérôme, Robert in Angewandte Chemie (International ed. in English) (1998), 37(18), 2488-2490Through a hole in a poly(ethyl acrylate) (PEA) layer that is electrochemically grafted to the surface of a vitreous carbon electrode-that is the route that must be taken by a growing polypyrrole nanowire ... [more ▼]Through a hole in a poly(ethyl acrylate) (PEA) layer that is electrochemically grafted to the surface of a vitreous carbon electrode-that is the route that must be taken by a growing polypyrrole nanowire in the electropolymerization of pyrrole. Chain growth is controlled by diffusion of the monomer through the DMF-swollen PEA layer, which acts as a template for the formation of nanowires (shown in the picture) with diameters of 400-1000 nm and lengths of up to 300 m. [less ▲]Detailed reference viewed: 26 (1 ULg) Molecular Cloning of a Mutated Hoxb7 Cdna Encoding a Truncated Transactivating Homeodomain-Containing ProteinChariot, Alain ; Senterre-Lesenfants, Sylviane; Sobel, Mark E et alin Journal of Cellular Biochemistry (1998), 71(1), 46-54Homeodomain-containing proteins regulate, as transcription factors, the coordinated expression of genes involved in development, differentiation, and malignant transformation. We report here the molecular ... [more ▼]Homeodomain-containing proteins regulate, as transcription factors, the coordinated expression of genes involved in development, differentiation, and malignant transformation. We report here the molecular cloning of a mutated HOXB7 transcript encoding a truncated homeodomain-containing protein in MCF7 cells. This is a new example of mutation affecting the coding region of a HOX gene. In addition, we detected two HOXB7 transcripts in several breast cell lines and demonstrated that both normal and mutated alleles were expressed at the RNA level in MCF7 cells as well as in a variety of breast tissues and lymphocytes, suggesting that a truncated HOXB7 protein might be expressed in vivo. Using transient co-transfection experiments, we demonstrated that both HOXB7 proteins can activate transcription from a consensus HOX binding sequence in breast cancer cells. Our results provide evidence that HOXB7 protein has transcription factor activity in vivo and that the two last amino acids do not contribute to this property. [less ▲]Detailed reference viewed: 18 (5 ULg) Cyclical Spectral and Photometric Variations of the Apparently Single Wolf-Rayet Star WR 134Morel, Thierry ; Marchenko, S. V.; Eenens, P. R. J. et alin Astrophysics & Space Science (1998), 260Evidence is presented for the existence of a 2.3 day periodicity in the line-profile changes of the apparently singleWolf-Rayet star WR 134. This cyclical variability may be induced either by the presence ... [more ▼]Evidence is presented for the existence of a 2.3 day periodicity in the line-profile changes of the apparently singleWolf-Rayet star WR 134. This cyclical variability may be induced either by the presence of an orbiting collapsed companion, or by the rotational modulation of a largely inhomogeneous outflow. [less ▲]Detailed reference viewed: 6 (4 ULg) Quasar polarization (Hutsemekers+ 1998)Hutsemekers, Damien ; Lamy, H.; Remy, MarcTextual, factual or bibliographical database (1998)Table 2 contains optical (V) polarimetric measurements for 42 optically selected QSOs including 29 broad absorption line QSOs. Table 3 contains a series of spectral indices characterizing the broad ... [more ▼]Table 2 contains optical (V) polarimetric measurements for 42 optically selected QSOs including 29 broad absorption line QSOs. Table 3 contains a series of spectral indices characterizing the broad absorption line QSOs. (2 data files). [less ▲]Detailed reference viewed: 12 (0 ULg) The burden of illness of hypopituitary adults with growth hormone deficiency.Hakkaart-van Roijen, L.; Beckers, Albert ; Stevenaert, Achille et alin PharmacoEconomics (1998), 14(4), 395-403Objective: The negative metabolic and psychosocial consequences of growth hormone deficiency (GHD) in adults are now well established. In the present study, an attempt was made to quantify the burden of ... [more ▼]Objective: The negative metabolic and psychosocial consequences of growth hormone deficiency (GHD) in adults are now well established. In the present study, an attempt was made to quantify the burden of illness, in terms of lost productivity and increased medical consumption, associated with hypopituitarism and untreated GHD. Design and Setting: The study population consisted of 129 Belgian adults with untreated GHD associated with hypopituitarism after pituitary surgery. The Short-Form 36 Health Survey (SF-36) was used to assess health status, and the Health and Labour Questionnaire was used to measure production losses and labour performance. Data on medical consumption were also collected. Main Outcome Measures and Results: Hypopituitary patients reported a lower health status than that of the general population in all but two dimensions of the SF-36 (pain and physical functioning). Nearly 11% of the patients reported being incapacitated for paid employment due to health problems, compared with 4.8% of the general Belgian population. Patients in paid employment reported a mean of 19.8 days of sickness leave per year, which is twice that in the general population. The annual number of visits to general practitioners and specialists was also higher in the patients (9.6 and 6.5 visits, respectively, for the patients compared with corresponding figures of 2.1 and 1.5 for the general Belgian population). The average annual number of days spent in hospital was 3.5 for the patients compared with 2.3 in the general population. The annual healthcare costs and costs due to production losses calculated for hypopituitary patients who had received pituitary surgery amounted to 135 024 Belgian francs (BeF) or $US4340 (1995 values). This compares with the mean annual cost per person for the Belgian population as a whole of BeF68 569 or$US2204. Conclusions: Hypopituitary patients with untreated GHD therefore have a higher cost to society in terms of lost production and medical consumption than the average Belgian population. [less ▲]Detailed reference viewed: 18 (0 ULg) La troponine, nouveau marqueur de l'infarctus du myocardeChapelle, Jean-Paul in Revue Médicale de Liège (1998), 53(10), 619-24The troponin (Tn) complex consists of three protein subunits referred to as TnT, TnI and TnC. Myocardium contains TnI and TnT isoforms which are not present in skeletal muscles and which can be separated ... [more ▼]The troponin (Tn) complex consists of three protein subunits referred to as TnT, TnI and TnC. Myocardium contains TnI and TnT isoforms which are not present in skeletal muscles and which can be separated from the muscular isoforms by immunological techniques. Using commercially available immunoassays, clinical laboratories are able to determine cardiac TnT and TnI (cTnT and cTnI) as quickly and reliably as classical cardiac markers. After acute myocardial infarction, cTnT and cTnI concentrations start to increase in serum in a rather similar way than CK-MB, but return to normal after longer periods of time (approximately one week). Because of their excellent cardiac specificity, Tn subunits appear ideally suited for the differential diagnosis of myocardial and muscular damage, for example in non cardiac surgery patients, in patients with muscular trauma or with chronic muscular diseases, or after intensive physical exercise. cTnT and cTnI may also be used for detecting evidence of minor myocardial damage, and therefore may find new applications in the management of patients with unstable angina. [less ▲]Detailed reference viewed: 66 (2 ULg) Foam-like evolution in polycrystalline systems following successive 'melt and growth' cyclesVandewalle, Nicolas ; Delisse, B.; Ausloos, Marcel et alin Philosophical Magazine B-Physics of condensed matter statistical mechanics electronic optical and magnetic properties (1998), 78(4), 397-408A stochastic model of multigrain growth which allows for successive melting-growth cycles is investigated on a square lattice. Two fundamental constraints are introduced: (i) the melted mass amplitude and ... [more ▼]A stochastic model of multigrain growth which allows for successive melting-growth cycles is investigated on a square lattice. Two fundamental constraints are introduced: (i) the melted mass amplitude and (ii) the number of cycles guide the process. The evolution of the microstructure is found to be quite similar to foam systems, i.e. topological rearrangements are observed together with the increase of the-mean grain area. A drastic crossover between two types of growth regimes is found as a function of the amplitude of the melting-growth cycles. This allows one to envisage the existence of optimal conditions for polycrystal processing. [less ▲]Detailed reference viewed: 11 (0 ULg) Pichia anomala strain K against post-hervest diseasesJijakli, Haissam Scientific conference (1998, October)Detailed reference viewed: 6 (0 ULg) Participation et intérêt politiques de lycéens français, belges et québécois au début des années quatre-vingt-dix : Une analyse plurielle fondée sur la dynamique de construction des univers de référenceFournier, Bernard Doctoral thesis (1998)Although certain recent theoretical developments insist more on the plurality of social and individual realities, the answers to empirical questions such as Are the young involved? or Are they interested ... [more ▼]Although certain recent theoretical developments insist more on the plurality of social and individual realities, the answers to empirical questions such as Are the young involved? or Are they interested in politics? still too often fit in a univocal logic of comprehension where concepts used are thought to be homogeneous, as if they were “subsumptions”. This is why it is coherent to explain phenomena from a linear point of view which supposes a precise vision of the processes of construction of individual worlds of reference. Jean Piaget’s perspective of socialization reminds us that the individual is not a passive being in the dynamics of appropriation of the world, but that he assimilates the social context, accommodates it to what he already understands and, thus, transforms it. Consequently, this opens the way to a form of conceptual relativism, with a plural logic of comprehension where each reality, each concept cannot be defined without being replaced in the context of the singular worlds of reference. Thus, the theoretical consideration of the plural possibilities must also emerge from our interpretations. This research challenge is raised in this thesis by studying a series of proﬁles of dimensions, where each dimension can be replaced in a context which materializes a certain organization of realities. The complexity thus introduced into the analysis is synthesized by multivariate statistical methods (analysis of multiple correspondences and hierarchical ascending classiﬁcation) which respect the initial organization of proﬁles. On the basis of data from an original inquiry among French, Belgian and Québécois high-school students, series of “clusters” of similar individuals are presented to describe, in a plural way, their participation and their political interests at the beginning of the nineties. [less ▲]Detailed reference viewed: 75 (1 ULg) Optimization techniques for parameter identification of material constitutive laws in large deformation processesKLEINERMANN, J. P.; Ponthot, Jean-Philippe ; Hogge, Michel in Journées Samtech (1998, October)Detailed reference viewed: 24 (1 ULg) Procédures particulières de droit judiciaire privé : scellés - inventaire - divorce par consentement mutuelMoreau, Pierre in chronique du 10 octobre 1998 (1998)Detailed reference viewed: 21 (3 ULg)