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  • 1
    Electronic Resource
    Electronic Resource
    On the problem of fitting many-body potentials. I. The minimal maximum error scheme and the paradigm of metal systems (1999)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 8899-8911 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Issues involved in fitting a semiempirical potential, such as the choice of a goodness criterion, selection of fitting quantities (properties), ascription of the degree of importance to the individual members of a fitting set, etc., all of which affect the outcome of a fitting procedure, are addressed and analyzed. The minimal maximum error fitting scheme is implemented to obtain the values of the parameters of the Gupta-type potential for nickel. The subtleties of this potential, one of which is that only four of its five parameters are independent, and their implications are pointed out and discussed. The resulting values of the parameters for nickel are analyzed and compared with those obtained in earlier studies. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.478809
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  • 2
    Electronic Resource
    Electronic Resource
    Structural and dynamical properties of Cu–Au bimetallic clusters (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 1056-1066 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The effect of alloying on the structural and thermal properties of Cun−xAux (n=13,14) clusters is investigated by constant energy Molecular Dynamics simulations. The interactions between the atoms in the clusters are mimicked by a many-body (Gupta-like) potential based on the second moment approximation to the tight-binding model. The minimum energy structures and the lowest-lying isomers of the pure and mixed clusters are obtained by thermal quenching. We find icosahedral-like ground state structures for the 13- and 14-atom clusters and for all the concentrations, the only exception being Au14 which has C6v symmetry. Mixed structures are preferred over the segregated ones. The lowest-lying isomers of the binary clusters are the permutational ones, i.e., isomers having the same underlying geometry as the ground state structure and different relative arrangement of the unlike atoms in the atomic positions of the geometry. However, presence of these low lying permutational isomers does not affect the gross features of the melting-like transition. The 13- and 14-atom (icosahedral-like) binary clusters melt in one and two stages, respectively, as the corresponding pure Cu clusters. In constrast the melting-like transition of Au14 exhibits a single stage. The melting temperature is studied as a function of cluster concentration and size. The main conclusion is that mixed Cu–Au clusters likely behave as pure Cu clusters, both from the structural and the dynamical points of view, for all concentrations. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.470831
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  • 3
    Electronic Resource
    Electronic Resource
    Hemophilia A or von Willebrand disease? (1994)
    Springer
    Annals of hematology 69 (1994), S. 317-319 
    Details
    ISSN: 1432-0584
    Keywords: Hemophilia A ; FVIII ; vWF Von Willebrand's disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Seven members of the same family were studied on several occasions due to a history of hemorrhages. The propositus, a 12-year-old boy, his sister, one brother, and their father all had a low plasma factor VIII (FVIII) level. Von Willebrand factor (vWF) activity, vWF multimeric analysis, and vWF factor domain for binding to FVIII were normal in all seven subjects. The sister had a normal 46XX karyotype. The study of two intragenic restriction fragment length polymorphisms (RFLPs) and two closely linked, highly polymorphic extragenic markers showed a phenotypic expression of mild hemophilia A, which suggests that the sister of the propositus is homozygous or compound heterozygous at the hemophilia A locus. She would have inherited two hemophilic genes: one from her carrier mother and the other from her father, a mild hemophiliac.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01696562
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  • 4
    Electronic Resource
    Electronic Resource
    Invasive pulmonary aspergillosis with pneumopericardium and pneumothorax (1992)
    Springer
    Pediatric radiology 22 (1992), S. 601-602 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of an invasive pulmonary aspergillosis with pneumopericardium and pneumothorax in an immunocompromised child of 5 years is reported. He was treated with thoracic drainage, amphotericin B and itraconazole. The course was satisfactory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02015364
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  • 5
    Electronic Resource
    Electronic Resource
    Prospective study ofStreptococcus milleri bacteremia (1996)
    Springer
    European journal of clinical microbiology & infectious diseases 15 (1996), S. 194-200 
    Details
    ISSN: 1435-4373
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a prospective study of bacteremia caused by organisms of theStreptococcus milleri group a total of 32 adult patients were observed over a seven-year period. These patients accounted for 1.6% of all patients diagnosed as having significant bacteremia and 17% of all cases of streptococcal (nonpneumococcal) bacteremia diagnosed during the study period. Only five patients had polymicrobic bacteremia. In 31 cases, a presumed origin of infection was identified, generally oral or gastrointestinal disease. There were only six cases of nosocomial acquisition. The most common presenting symptom was prolonged fever. The following forms of presentation were documented: bacteremia with local suppurative infection (56%), bacteremia without local suppurative infection (25%), and endocarditis (19%). An associated focus of infection was found in the abdominal cavity in 20 cases (62%). The mortality rate was 12.5%. All isolates were susceptible to penicillin. Caution is necessary in interpreting a blood culture positive forStreptococcus milleri group organisms, since, unlike other viridans streptococci, they are rarely contaminants. For this reason patients with suppurative processes and/or digestive tract disease must be carefully investigated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01591353
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  • 6
    Electronic Resource
    Electronic Resource
    Annual cycle of expression of connective tissue polypeptide markers in the mantle of the musselMytilus galloprovincialis (1996)
    Springer
    Marine biology 126 (1996), S. 77-89 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract We suggest that gonad development in the mantle tissue of the bivalve molluscMytilus galloprovincialis Lmk. is an example of epithelial/mesenchymal interactions (i.e. soma/germline interactions) and morphogenesis in the adult state. According to this concept, the aim of the present study was to use biochemical and immunochemical methods for identifying and characterizing the mantle cell polypeptide markers whose expression is seasonally and morphogenetically regulated. We showed for the first time thatM. galloprovincialis mantle, of both males and females, contains polypeptides (with an apparent mol. wt of 45 to 53 kDa) specific for connective tissue (“mantle connective tissue polypeptides”; MCTPs). Electrophoretic, immunoblotting and immunofluorescent experiments demonstrated that MCTPs are primarily localized in the adipogranular (ADG) cells, and their expression in the mantle is seasonally regulated. There is a positive correlation between MCTP expression and connective tissue volume in the mantle. MCTPs are overexpressed during the rest period, when the mantle consists of connective tissue mainly, whereas mature gonads contain only trace amounts of MCTPs. Moreover, there is a temporal correlation between the onset and decrease of MCTP expression and the appearance and disappearance of the ADG cells in the mantle. MCTP localization in the mantle tissue should not be associated with the ADG cells only, because positive immunofluorescence was also detected in follicle membranes (but not in germ cells) and superficial mantle epithelium. Using immunoblotting and immunofluorescence, MCTPs were found in the connective tissue of the mantle, posterior adductor muscle and visceral mass, but not gills, foot or hepatopancreas. Possible mechanisms by which MCTPs could participate in the annual processes of mantle gonad/connective tissue development and involution are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571379
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  • 7
    Electronic Resource
    Electronic Resource
    Use of the intraosseous route in resuscitation in a neonate (1994)
    Springer
    Intensive care medicine 20 (1994), S. 529-529 
    Details
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01711910
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  • 8
    Electronic Resource
    Electronic Resource
    Use of agricultural wastes for xanthan production by Xanthomonas campestris (1998)
    Springer
    Journal of industrial microbiology and biotechnology 21 (1998), S. 242-246 
    Details
    ISSN: 1476-5535
    Keywords: Keywords: xanthan; agricultural wastes; Xanthomonas campestris
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Four different acid-hydrolyzed wastes, from melon, watermelon, cucumber and tomato were compared for xanthan production. Growth of Xanthomonas campestris, xanthan biosynthesis, kinetics and chemical composition were investigated. Both growth and xanthan production were dependent on the acid hydrolysate concentrations and available nitrogen. Melon acid hydrolyzed waste was the best substrate for xanthan production. Exopolysaccharide obtained throughout this study was compared to commercial xanthan, showing a very similar chemical composition. Acid hydrolyzed wastes are proposed as a new carbon source for xanthan production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/sj.jim.2900582
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  • 9
    Electronic Resource
    Electronic Resource
    Leigh syndrome due to pyruvate dehydrogenase E1α deficiency (point mutation R263G) in a Spanish boy (1996)
    Springer
    Journal of inherited metabolic disease 19 (1996), S. 795-796 
    Details
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01799177
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  • 10
    Electronic Resource
    Electronic Resource
    Prevalence of pyocin types of P. Aeruoinosa in a university hospital during 1987–1986 (1987)
    Springer
    European journal of epidemiology 3 (1987), S. 431-435 
    Details
    ISSN: 1573-7284
    Keywords: Pseudomonas aeruginosa ; Pyocin typing ; Pyocin types
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Strains of Pseudomonas aeruginosa isolated from patients in the University of Granada (Spain) from 1981 to 1986 were Pyocin-typed in order to determine which types were the most common. The proportions of typable and non typable strains were similar to those obtained by other authors. A high percentage of typable strains were unclassifiable (UC) according to Govan's method. The most frequent types of typable strains were 580 (55 of Govan), 270 (UC), 280 (UC), 570 (UC) 670 (73 of Govan), 113 (10 of Govan), 470 (86 of Govan) and 180 (58 of Govan). These types were responsible for the appearance of several nosocomial outbreaks during the years of this study. Types 580, 113 and 280 remained constant for these six years; for this reason, they can be considered endemic of our hospital.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00145657
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