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  • 1
    Electronic Resource
    Electronic Resource
    The influence of an external dc substrate bias on the density of states in hydrogenated amorphous silicon (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 4869-4873 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report a study of the dependence of the density of states in hydrogenated amorphous silicon produced under different dc substrate biases. A dependence of the density of states in materials deposited simultaneously onto indium-tin-oxide-coated glass and stainless steel has been found. The same is attributed to sheath plasma differences at the top surface of the growing film. The density of states was determined by the space-charge-limited current method. The universal scaling law is tested for samples having a similar density of states. Attempts were made to correlate the product of the hole mobility and the recombination time for samples deposited in conditions similar to those used in the space-charge-limited current experiments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.343200
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetism and superconductivity in La0.7Ca0.3MnO3/YBa2Cu3O7−δ superlattices (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 8026-8029 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report on the magnetic and superconducting properties of La0.7Ca0.3MnO3/YBa2Cu3O7 (LCMO/YBCO) superlattices. For a constant LCMO layer thickness of 6 unit cells (u.c.), resistance and susceptibility measurements show superconductivity for YBCO layer thickness in excess of 4 unit cells. The critical temperature increases with YBCO thickness, and a Tc of 58 K is found for a YBCO thickness of 10 unit cells. Magnetization measurements show a ferromagnetic transition at 100 K in a (LCMO6 u.c./YBCO5 u.c.)15 bilayer superlattice, and a depressed value of the saturation magnetization of 20 emu cm−3. These results are discussed in terms of interface disorder (analyzed by x-ray diffraction and transmission electron microscopy) and of the possible interaction between magnetism and superconductivity. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1370994
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  • 3
    Electronic Resource
    Electronic Resource
    Potential use of a Yersinia ruckeri O1 auxotrophic aroA mutant as a live attenuated vaccine (2005)
    Oxford, UK : Blackwell Science Ltd
    Journal of fish diseases 28 (2005), S. 0 
    Details
    ISSN: 1365-2761
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The aroA gene of Yersinia ruckeri, which encodes 5-enolpyruvylshikimate 3-phosphate synthase, was insertionally inactivated with a DNA fragment containing a kanamycin resistance determinant and reintroduced by allelic exchange into the chromosome of Y. ruckeri 21102 O1 by means of the suicide vector pIVET8. The Y. ruckeri aroA::Kanr mutant was highly attenuated when inoculated intraperitoneally into rainbow trout, with a 50% lethal dose of 〉5 × 107 CFU. The mutants were not recoverable from the internal organs 48 h post-inoculation or later. The vaccination of rainbow trout with the AroA mutant as a live vaccine conferred significant protection (relative percentage survival = 90%) against the pathogenic wild-type strain of Y. ruckeri.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2761.2005.00646.x
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  • 4
    Electronic Resource
    Electronic Resource
    Epidemiology of a Neotropical rust (Puccinia psidii): periodical analysis of the temporal progress in a perennial host (Syzygium jambos) (2001)
    Oxford, UK : Blackwell Science Ltd
    Plant pathology 50 (2001), S. 0 
    Details
    ISSN: 1365-3059
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The epidemiology of the Neotropical rust caused by Puccinia psidii in the Indian Myrtaceae Syzygium jambos (rose apple) was investigated in central Brazil. Disease severities recorded during a 12-month period were fitted by a Fourier curve with three cyclic components or harmonics. The first, second and third harmonics accounted for 49·6, 25·9, and 1·5% of total disease measured, respectively. A highly significant linear correlation was observed between the first harmonic and the accumulated number of days having at least 6 h wetness, or a minimum of 90% relative humidity, combined with temperatures that ranged from 18 to 20°C. No significant correlation was observed between the second and third harmonics and the weather variables evaluated. Rose apple trees showed a flush of growth with new susceptible host tissue during the evaluation period, with two major outbreaks of rust of variable intensity. Host growth was fitted by a Fourier curve with two significant harmonics. The first and second harmonics accounted for 37·5 and 22·1% of total host growth measured, respectively. A highly significant negative linear correlation was observed between the first harmonic and daily maximum and minimum temperatures, rainfall, and duration of the light period. Inoculum availability was not a limiting factor for disease progress since urediniospores were present during most of the period studied. A major peak in numbers of rust spores followed the main peak of disease severity. Thus, rust epidemics on rose apple in central Brazil were shown to depend on the duration of leaf wetness in the dark, and also on night-time temperatures during that same wetness period. This study is the first example of a periodical analysis of an epidemic in a perennial crop.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3059.2001.00646.x
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  • 5
    Electronic Resource
    Electronic Resource
    Once-daily, low-cost, highly effective 〈fr〉Helicobacter pylori〈/fr〉 treatment to family members of gastric cancer patients (2003)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 17 (2003), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background : Helicaobacter pylori eradication in family members of gastric cancer patients is now widely accepted, although problems related to costs and compliance persist.Aim : To compare the efficacy, tolerability and long-term re-infection rates of two once-daily regimens for the eradication of H. pylori in family members of gastric cancer patients.Methods : 106 first-degree family members of gastric cancer patients were recruited and submitted to the 13C-urea breath test (UBT) to detect H. pylori. If positive, they were randomly allocated to receive a combination of lanzoprazole 30 mg, clarithromycin OD (extended-release formulation) 500 mg and furazolidone 400 mg, once daily, in the morning, for 7 days (Group A) or the same regimen with only 200 mg furazolidone (Group B). Eradication was confirmed by urea breath test performed 6 weeks after treatment. 13C-urea breath test was repeated at 944 (784–1258) days after treatment in successfully treated participants to look for re-infection.Results : Twenty-five participants were H. pylori negative and two H. pylori-positive individuals refused to sign the informed consent and were excluded. Therefore, 79 participants were studied. Forty participants were allocated to Group A and 39 to Group B. All participants completed treatment. Adverse effects, mostly mild, were observed in 18% of Group A and 18% of Group B (N.S.). The intention-to-treat eradication rate was 87.5% in Group A and 61.5% in Group B (P = 0.006). The mean annual re-infection rate was 3%.Conclusions : The combination of lanzoprazole 30 mg, one tablet of clarithromycin OD (extended release formulation) 500 mg and furazolidone 400 mg, once daily for 7 days, constitutes an inexpensive, safe and effective alternative for anti-H. pylori therapy in family members of gastric cancer patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.2003.01393.x
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  • 6
    Electronic Resource
    Electronic Resource
    Megestrol acetate therapy for anorexia and weight loss in children with malignant solid tumours (1996)
    Oxford BSL : Blackwell Science
    Alimentary pharmacology & therapeutics 10 (1996), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background: Malnutrition is very frequent in childhood cancer. Its main cause is inadequate intake for energy demands owing to lack of appetite. Megestrol acetate is a synthetic progestin that has been used for reversing anorexia in adult cancer. Objectives: To assess megestrol acetate efficacy and side-effects in treating anorexia in childhood cancer. Methods: Thirty-five children with solid tumours were receiving antitumour therapy. Nutritional assessment was by anthropometry. Megestrol acetate efficacy was assessed by evaluating grade of appetite, energy intake and well-being. Side-effects were evaluated by means of clinical history, physical examination, lipid profile, coagulation tests and cortisol rhythm. Results: When compared to baseline all the anthropometric measurements increased (P〈0.05) from the first month of megestrol acetate therapy, as well as appetite and energy intake. No significant side-effects were found. Conclusion: Megestrol acetate therapy is a powerful appetite stimulant which led to weight gain, composed of both fat mass and fat-free mass. Megestrol acetate is well tolerated, with few and mild side-effects. If megestrol acetate therapy is started at the onset of anorexia, the use of more expensive, invasive and complicated techniques of nutritional support may be avoided.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2036.1996.25166000.x
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  • 7
    Electronic Resource
    Electronic Resource
    Larvae of Crystallodytes pauciradiatus(Perciformes: Creediidae) from Easter Island, South Pacific (2005)
    Oxford, UK; Malden, USA : Blackwell Publishing Ltd/Inc.
    Journal of fish biology 66 (2005), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Larvae of Crystallodytes pauciradiatus(Creediidae) are described from 47 individuals (2·9–21·3 mm). They are elongate, slender, lightly pigmented, have prominent preopercular spines and unique small spines on the lower jaw. Early stages are restricted to the nearshore water around Easter Island, South Pacific.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0022-1112.2005.00576.x
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  • 8
    Electronic Resource
    Electronic Resource
    Antigen distribution and antigen-presenting cells in skin biopsies of human chromoblastomycosis (2004)
    Oxford, UK : Munksgaard International Publishers
    Journal of cutaneous pathology 31 (2004), S. 0 
    Details
    ISSN: 1600-0560
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Chromoblastomycosis is a chronic, suppurative, granulomatous mycosis usually confined to skin and subcutaneous tissues. The host defense mechanisms in chromoblastomycosis have not been extensively investigated. The purpose of the present study was to determine the distribution and pathways of the fungal antigen(s) and the possible role of the different immunocompetent cells in antigen processing in skin lesions.Methods:  The distribution of Fonsecaea pedrosoi antigen(s) in human skin was studied in 18 biopsies from 14 patients with chromoblastomycosis. A purified polyclonal immune serum raised in rabbits against metabolic antigen(s) of F. pedrosoi was used to detect yeast antigen(s) by immunohistochemical procedures. Double immunolabeling was performed with yeast antigen(s) and Langerhans' cells [labeled with anti-S100 protein monoclonal antibody (MoAb)], yeast antigen(s) and factor XIIIa+ dermal dendrocytes (immunolabeled with anti-factor XIIIa polyclonal antibody), and yeast antigen(s) and macrophages (labeled with CD 68 monoclonal antibody).Results:  The F. pedrosoi antigen(s) accumulated in the skin macrophages and, in a few instances, in factor XIIIa+ dendrocytes and Langerhans' cells.Conclusions:  The data obtained suggest that chiefly macrophages, also Langerhans' cells and factor XIIIa+ dermal dendrocytes, function as antigen-presenting cells in chromoblastomycosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.0303-6987.2004.0131.x
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  • 9
    Electronic Resource
    Electronic Resource
    New once-daily, highly effective rescue triple therapy after multiple Helicobacter pylori treatment failures: a pilot study (2005)
    Oxford, UK : Blackwell Science Ltd
    Alimentary pharmacology & therapeutics 21 (2005), S. 0 
    Details
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Background:  Helicobacter pylori treatment failure is a growing problem in daily practice.Aim:  To determine the efficacy of the combination of rabeprazole, levofloxacin and furazolidone as a rescue therapy.Methods:  Duodenal ulcer patients previously submitted, without success, to at least two H. pylori treatment regimens were included. Gastroscopy (urease test, histological examination and culture) and 13C-urea breath test were performed. All patients received a combination of rabeprazole 20 mg, levofloxacin 500 mg and furazolidone 200 mg (two tablets) administered in a single dose in the morning for 10 days. Clinical examination and a new 13C-urea breath test were performed 90 days after therapy.Results:  Twelve patients (eight females and four males), mean age 43 (30–58) years were included. Two patients failed to complete the treatment because of nausea and vomiting. Ten patients completed the study and took all the medications as advised. Culture was obtained in six patients: 100 and 83% of the samples were sensitive to furazolidone and levofloxacin, respectively. Per-protocol and intention-to-treat eradication rates were 100 and 83% (P = 0.019).Conclusions:  the combination of rabeprazole, levofloxacin and furazolidone in a single daily dose for 10 days constitutes a highly-effective and low-cost alternative as a third-line therapy in patients infected with H. pylori.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2036.2005.02370.x
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  • 10
    Electronic Resource
    Electronic Resource
    Divergence of two forms of Triphoturus in the eastern Pacific based on mtDNA cytochrome b gene sequences and larval morphology (2004)
    Oxford, UK; Malden, USA : Blackwell Science Ltd
    Journal of fish biology 64 (2004), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Divergence between two eastern Pacific forms of Triphoturus, currently considered to belong to the same species was tested by DNA sequences of the cytochrome b gene (DNA obtained from larvae collected in northern Chile and from adults in the Southern California Bight) and examination of larval characters. The number of apparently fixed substitutions (12 among 31 variable sites, out of 1001 bases) was high and the pattern of mid-lateral trunk pigmentation in larvae also differed consistently between the two forms. The results support the separate species status for T. mexicanus(North America) and T. oculeus(Central-South America).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0022-1112.2004.00413.x
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