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  • 1
    Electronic Resource
    Electronic Resource
    Superconducting films grown in situ by the activated reactive evaporation process (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 55 (1989), S. 504-506 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The low-pressure activated reactive evaporation process was used successfully to grow superconducting thin films that were uniform in thickness, free of cracks, voids, spits, and other source-related defects, and with mirror-like surface smoothness. These are important considerations for the practical use of these materials in thin-film form. No post-deposition annealing was carried out. Tc (0) for films on yttria-stabilized zirconia (YSZ) substrates is close to 80 K, and the (001) preferred orientation was observed with higher deposition temperatures in the range 550–650 °C. Films on silicon and sapphire substrates were adversely affected by interdiffusion, showing a Tc (0) of 56 and 72 K, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101571
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  • 2
    Electronic Resource
    Electronic Resource
    Effectiveness of macrogol and talcum base formulations of a new insect repellent N, N-diethyl phenyl acetamide (1988)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of cosmetic science 10 (1988), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effectiveness of macrogol and talcum base formulations of a new multi-insect repellent N, N-diethyl phenyl acetamide (DEPA) was studied against Aedes aegypti mosquitoes in the laboratory. The efficacy was compared with widely used repellent in India, viz. Dimethylphthalate. Twenty-five per cent DEPA incorporated macrogol ointment and talcum base formulation offered more than 8 h and 6 h protection, as compared to DMP for 3 h and 1 h 30 min, respectively. The ointment was found to be stable as more than 99% DEPA was recovered by gas liquid chromatography after 6 months of storage at room temperature. The repellent formulations have not shown any gross adverse effect to the skin of albino rabbits.〈section xml:id="abs1-2"〉〈title type="main"〉RésuméL'efficacité d'un nouvel agent repousseur d'insectes (le N, N-diethyl phenyl acetamide) dans des formulations à base de macrogol et du talcL'efficacité des bases formulées à partir de macrogol et de talc pour un nouvel insecticide, N, N-diethyl pnenyl acetamide (DEPA) a étéétudiée contre les moustiques Aedes aegypti en laboratoire. Cette efficacité a été comparée avec un insecticide couramment utilisé en Inde, le Dimethyl phthalate. 25% de DEPA incorporéà une base formulée à partir de pommade de macrogol et de talc a permis une protection respectivement de plus 5 h et de plus de8 h comparativement au DMP pour lequel la protection était respectivement de 3 h et 1 h 30. La pommade s'est avérée stable car plus de 99% de DEPA ont été identifiés par GLC après 6 mois de stockage à température ambiante. Les formulations d'insecticides n'ont révélé aucun effet adverse sur la peau des lapins albinos.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.1988.tb00581.x
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  • 3
    Electronic Resource
    Electronic Resource
    A unique introgression from Moricandia arvensis confers male fertility upon two different cytoplasmic male-sterile lines of Brassica juncea (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 124 (2005), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: A Brassica juncea line carrying an introgression from Moricandia arvensis restored male fertility to two cytoplasmic male-sterile (CMS) B. juncea lines carrying either M. arvensis or Diplotaxis catholica cytoplasm. Genetics of fertility restoration was studied in the F1, F2, F3 and backcross generations of the cross between CMS and fertility-restorer lines. No male-sterile plants were found in F1-F3 generations of the cross between CMS [M. arvensis] B. juncea and the restorer. However, a 1: 1 segregation for male sterility and fertility was observed when the F1 was pollinated with non-restorer pollen from a euplasmic line. These results clearly show that restoration is mono-genic and gametophytic. In CMS lines carrying D. catholica cytoplasm, the restorer conferred male fertility to the F1 and showed 3: 1 and 1: 1 segregations for male fertility and sterility in F2 and BC1 generations, respectively, indicating a monogenic, sporophytic mode of fertility restoration. The results were also supported by pollen stainability in the F1 which was about 65% in M. arvensis-based CMS and 〉90% in D. catholica-based CMS. The above results are discussed in the light of previous molecular studies which showed association between CMS and atpA in both systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.2005.01054.x
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  • 4
    Electronic Resource
    Electronic Resource
    Studies of plasma spray coatings on a Fe-base superalloy, their structure and high temperature oxidation behaviour (2005)
    Bradford : Emerald
    Anti-corrosion 52 (2005), S. 84-95 
    Details
    ISSN: 0003-5599
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Purpose - Plasma spray coating technologies are capable of depositing a wide range of compositions without significantly heating the substrate. The objective is to characterise plasma sprayed metallic coatings on a Fe-based superalloy. Design/methodology/approach - NiCrAlY, Ni-20Cr, Ni3Al and Stellite-6 metallic coatings were deposited on a Fe-based superalloy (32Ni-21Cr-0.3Al-0.3Ti-1.5Mn-1.0Si-0.1C-Bal Fe) by the shrouded plasma spray process. The coatings were characterised in relation to coating thickness, porosity, microhardness and microstructure. The high temperature oxidation behaviour of the coatings was investigated in brief. The techniques used in the present investigation include metallography, XRD and SEM/EDAX. Findings - All the coatings exhibited a lamellar structure with distinctive boundaries along with the presence of some porosity and oxide inclusions. The microhardness of the coatings was observed to vary with the distance from the coating-substrate interface. The St-6 coating had the maximum microhardness, whereas the lowest hardness was exhibited by the Ni3Al coating. The phases revealed by XRD of the coatings confirmed the formation of solid solutions, whereas EDAX analysis of the as-sprayed coatings confirmed the presence of basic elements of the coating powders. So far as high temperature oxidation behaviour is concerned, all of the coatings followed the parabolic rate law and resulted in the formation of protective oxide scales on the substrate superalloy. Originality/value - The plasma spray process provides the possibility of developing coatings of Ni3Al as well as commercial available NiCrAlY, Ni-20Cr and St-6 powders on Fe-based superalloy Superfer 800H
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/00035590510584799
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  • 5
    Electronic Resource
    Electronic Resource
    UV-resistant, water repellent and rodent repellent nylon tapes for aircraft arrester system (2005)
    Bingley : Emerald
    Pigment & resin technology 34 (2005), S. 270-274 
    Details
    ISSN: 0369-9420
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Purpose - To develop a water repellent (WR), rodent repellent (RR) and UV resistant (UVR) formulation for woven nylon tapes to be used in aircraft arrester system. Design/methodology/approach - UVR, WR and RR formulation for woven nylon tapes were prepared using silicone oil as WR, oleoresin (OR) (red chilly extract) and denatonium benzoate (DB) as RRs, carbon black for UV resistance and butyral resin as binder. Findings - Incorporation of silicon oil improved the water repellency of the processed nylon tapes. DB and OR in the formulation protected the tapes from rats. The former showed excellent protection for nylon tapes in the experimental conditions. More than 150 days of protection has been achieved in comparison to 27 days using OR. The presence of carbon black along with silicon oil and DB in the formulation enabled the nylon tapes UVR-WR-RR in a single processing step. The presence of RRs and WRs within the same formulation did not affect each other's performance. Research limitations/implications - OR and DB were used as RR materials and silicone oil as WR material. In addition, some other RR and WR materials could have been evaluated. Practical implications - The formulation imparts UV resistance, water and rodent repellency to the nylon tapes after processing. Originality/value - This type of formulation is novel for processing of nylon tapes to be used in aircraft arrester systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/03699420510620283
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  • 6
    Electronic Resource
    Electronic Resource
    History of yield improvements in the production of asperlicin byAspergillus alliaceus (1989)
    Springer
    Journal of industrial microbiology and biotechnology 4 (1989), S. 97-104 
    Details
    ISSN: 1476-5535
    Keywords: Fermentation development ; Cholecystokinin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary The natural product asperlicin is the first nonpeptide antagonist of cholecystokinin isolated from a microbial source. At discovery, production of asperlicin by the original soil isolate ofAspergillus alliaceus was between 15 and 30 mg/l. Selection of natural variants ofA. alliaceus, use of Plackett & Burman and Simplex experimental designs; formulation of synthetic media; amino acid supplementation of production media; analysis of complex nitrogen sources for their amino acid content; evaluation of promising media in fermentors; substitution of glycerol for glucose as a carbon source and rational mutant selection all contributed to titer increases to 〉900 mg/l.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01569793
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  • 7
    Electronic Resource
    Electronic Resource
    Some magnetofluid cosmological models of plane symmetry (1985)
    Springer
    Astrophysics and space science 111 (1985), S. 383-388 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Considering the cylindrically-symmetric metric of Marder, some plane-symmetric magnetofluid cosmological models have been derived. Various physical and geometrical properties of the models have been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00649977
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  • 8
    Electronic Resource
    Electronic Resource
    Aldicarb suppresses macrophage but not natural killer (NK) cell-mediated cytotoxicity of tumor cells (1989)
    Springer
    Bulletin of environmental contamination and toxicology 43 (1989), S. 676-682 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01701987
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  • 9
    Electronic Resource
    Electronic Resource
    Tumor-induced alteration in macrophage accessory cell activity on autoreactive T cells (1989)
    Springer
    Cancer immunology immunotherapy 30 (1989), S. 170-176 
    Details
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Using a tumor-model system, differences in the accessory cell capabilities on autoreactive T cells of splenic macrophages from normal and tumor-bearing hosts (TBH) were assessed in the syngeneic mixed lymphocyte reaction. Tumor development caused a drop in autoreactivity. At 0 and 7 days of tumor growth, no drop in reactivity occurred when TBH macrophages were used as accessory cells and L3T4+ autoreactive T cells from normal mice were used as responder cells. However, by day 14, there was a 32% drop in reactivity, and by day 21 only 22% of the T cell reactivity remained when TBH macrophages were used as accessory cells. Alterations in macrophage Ia antigen during tumor growth were first investigated as the potential cause of reduced autoreactivity. Before tumor growth (day 0) 59% of the splenic macrophages were found to be Ia+. Day-7 TBH macrophages showed no difference in Ia antigen expression when compared to day 0 macrophages. However, by day 14, TBH macrophages showed a 9% decrease, and by day 21 they showed a 36% decrease in the number which were Ia+. Concomitant with the decrease in the number of Ia+ cells was a decrease in the density of Ia antigen expression on day-14 and -21 TBH macrophages. In day-14 and -21 TBH macrophages, two populations were seen that were Ia+. The first had a 10%–20% decrease in Ia antigen expression per cell while the second population had a 〉50% drop in Ia antigen expression per cell. By titrating and mixing TBH macrophages with normal host macrophages, we assessed whether they could actively mediate suppression of autoreactive T cells. A titratable suppressive phenomenon was demonstrated using day-21 TBH macrophages. In contrast, day-7 and -14 TBH macrophages titrated with normal host macrophages had no effect on the syngeneic mixed lymphocyte reactivity. Lastly, we investigated whether the macrophage-mediated suppression was caused by increased prostaglandin secretion. Addition of indomethacin to cultures increased autoreactive T cell reactivity stimulated by normal or TBH macrophages (59% and 99% increase, respectively). Although indomethacin reduced suppression mediated by TBH macrophages, autoreactivity did not return to levels induced by untreated or indomethacin-treated cells from a normal host. Taken together, the data suggested that tumor growth modulates the function of macrophage accessory cells with autoreactive T cells in at least two ways: by decreasing Ia antigen expression and by increasing suppressor activity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01669426
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  • 10
    Electronic Resource
    Electronic Resource
    Differential effects of BCNU on T cell, macrophage, natural killer and lymphokine-activated killer cell activities in mice bearing a syngeneic tumor (1988)
    Springer
    Cancer immunology immunotherapy 27 (1988), S. 38-46 
    Details
    ISSN: 1432-0851
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Chloroethylnitrosoureas have been used widely to treat human and experimental animal tumors. We have earlier observed that 〉90% of the mice transplanted with syngeneic tumors survive following treatment with nitrosoureas such as 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) and furthermore, they resist subsequent challenge with the same tumor. The present investigation was initiated to determine the mechanism by which BCNU brings about this effect. Treatment of tumor cell targets in vivo or in vitro with BCNU, increased their susceptibility to macrophage (MØ)-mediated cytotoxicity as measured in a direct cytotoxicity assay or in an antibody-dependent cell-mediated cytotoxicity (ADCC) assay. In contrast, the antitumor cytotoxicity caused by cytotoxic T lymphocytes (CTL), natural killer (NK) cells, or lymphokine-activated killer (LAK) cells, was not altered following BCNU treatment of tumor targets. Studies were also conducted to investigate the direct effect of BCNU in vivo on various cytotoxic effector cells. For this purpose, MØ, NK, LAK, and CTL activities from BCNU-treated-tumor-bearing mice were screened for cytotoxicity against untreated tumor targets in vitro. It was observed that tumor-specific CTL and LAK cell activity increased in BCNU-treated tumor-bearing mice when compared to untreated controls while the cytotoxic potential of NK cells and MØs was not altered. The present study suggests that antitumor drugs such as BCNU are not only tumoricidal but also selectively act in a variety of ways at both the effector and target cell level, leading to overall enhanced antitumor immunity and high rate of cures from the syngeneic tumor challenge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00205756
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