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  • 1
    Electronic Resource
    Electronic Resource
    Reduction of the C54–TiSi2 phase transformation temperature using refractory metal ion implantation (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 3729-3731 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report that the ion implantation of a small dose of Mo into a silicon substrate before the deposition of a thin film of Ti lowers the temperature required to form the commercially important low resistivity C54–TiSi2 phase by 100–150 °C. A lesser improvement is obtained with W implantation. In addition, a sharp reduction in the dependence of C54 formation on the geometrical size of the silicided structure is observed. The enhancement in C54 formation observed with the ion implantation of Mo is not explained by ion mixing of the Ti/Si interface or implant-induced damage. Rather, it is attributed to an enhanced nucleation of C54–TiSi2 out of the precursor high resistance C49–TiSi2 phase. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.115364
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  • 2
    Electronic Resource
    Electronic Resource
    Exact solutions of an algebraically extended Kaluza–Klein theory (1985)
    College Park, Md. : American Institute of Physics (AIP)
    Journal of Mathematical Physics 26 (1985), S. 2308-2316 
    Details
    ISSN: 1089-7658
    Source: AIP Digital Archive
    Topics: Mathematics , Physics
    Notes: The four-dimensional field equations in an algebraically extended Kaluza–Klein theory are solved in the static spherically symmetric case. Eight distinct classes of solutions are found, some of which are free of singularities in both the metric and the electromagnetic field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.526814
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  • 3
    Electronic Resource
    Electronic Resource
    The outcomes of pregnancy in women exposed to newly marketed drugs in general practice in England (1998)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 105 (1998), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Objective To determine the proportion and nature of congenital anomalies in babies born to women exposed to newly marketed drugs during the first trimester.Design Non-interventional observational cohort studies.Methods The women were identified in confidence by the Prescription Pricing Authority. The doctor was sent a questionnaire to determine clinical events, including pregnancy, occurring after the drug was dispensed. A supplementary questionnaire determined the outcome of each reported pregnancy.Setting General medical practice in England.Population Women exposed to newly marketed drugs in whom pregnancy was recorded.Main outcome measures Outcomes of pregnancies, the proportion and nature of congenital anomalies in the babies born.Results 2511 pregnancies were reported. In 831 of these pregnancies a newly marketed drug had been taken during the first trimester and in 74 during the secondkhird trimester. The outcome was ascertained for 780 (94%) of these 831 pregnancies: 547 (66%) births; 10 (1%) ectopic pregnancies; 94 (11%) spontaneous miscarriages; 5 (〈 1%) missed abortions; 120 (14%0) legal abortions; and 4 (C 1%) intrauterine deaths. 557 infants were born, of whom 14 (2.5%) had congenital anomalies.Conclusions The proportion of live infants with a congenital abnormality born to mothers exposed to newly marketed drugs in the first trimester was similar to the percentage of congenital anomalies estimated by the Ofice for National Statistics. These data add valuable information to the safety database of these drugs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1998.tb10234.x
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  • 4
    Electronic Resource
    Electronic Resource
    The ecology of brown trout Salmo trutta in English chalk streams (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 21 (1989), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. .1. Chalkstream trout are fast-growing, short-lived with a stable age structure that is a consequence of the lack of extremes in the abiotic environment, especially of water temperature and flow.2. Levels of secondary (invertebrate) production arc high and there is no evidence that interspecific or intraspecific competition for food resources limits growth.3. Dietary studies show a broad similarity between trout and other species, but indicate differences that reflect variations in the micro-habitat distributions between fish species.4. Trout numbers appear to be limited initially by the availability of gravel spawning areas, and then by areas suitable for newly-emerged fry. Reduction in stream discharge in the spring, either naturally or by man, can lower the number of 0+ trout that survive.5. Eels are not important predators on trout eggs or fry. but a reduction in pike numbers can lead to a decrease in the mean weight of pike. Small pike do not pose a serious threat to stocked yearling trout.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1989.tb01348.x
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  • 5
    Electronic Resource
    Electronic Resource
    Hydrofining of heavy gas oil on zeolite-alumina supported nickel-molybdenum catalyst (1988)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 27 (1988), S. 1788-1792 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00082a009
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  • 6
    Electronic Resource
    Electronic Resource
    Prescription-event and other forms of epidemiological monitoring of side-effects in the UK (1999)
    Oxford BSL : Blackwell Science Ltd
    Clinical & experimental allergy 29 (1999), S. 0 
    Details
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The post-marketing surveillance (PMS) of drugs is necessary because of the limited size of the clinical safety database at the time of marketing. The principal hypothesis-generating methods of PMS are spontaneous reporting (e.g. the yellow card) and Prescription Event Monitoring. These methods are discussed in this chapter and certain basic pharmacoepidemiological issues that are relevant are briefly reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2222.1999.0290s3217.x
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  • 7
    Electronic Resource
    Electronic Resource
    Contact dermatitis from Hioxyl cream (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Contact dermatitis 15 (1986), S. 0 
    Details
    ISSN: 1600-0536
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0536.1986.tb01347.x
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  • 8
    Electronic Resource
    Electronic Resource
    Environmentally-induced fluctuations in year-class strength and their implications for management (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 27 (1985), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Data for river populations of common freshwater species including dace, chub, roach, gudgeon and pike are examined to assess the magnitude of natural density-independent fluctuations in the strength of year-classes. Both in the cyprinid populations and in those of some salmonids, only occasional years give rise to large cohorts of adult fish. Correlations with temperature indicate that for the cyprinid populations these are often years when temperatures are high. In the River Frome, Dorset there is a significant relationship between the growth of O-group dace and subsequent year-class strength. Faster-growing larvae may be better able to avoid predation. Both the habitat and feeding requirements of these young fish are different from those of the adults. A practical approach to improving recruitment in a population of a given species would be to first characterize, and then increase, the availability of suitable habitats and food organisms for the larval stages.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1985.tb03243.x
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  • 9
    Electronic Resource
    Electronic Resource
    On the accuracy of age-determination using scales from rudd, Scardinius erythrophthalmus (L.), of known age (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 26 (1985), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Six scientists from five European countries each examined 29 sets of scales from rudd of known age. The material contained 174 scales from both fast and slow growing fish and, with the exception of one participant, the scientists missed the first annulus when it was formed close to the scale centre. Sixty-eight scales were misread in this way, but only 12 were incorrectly aged because of confusion between true and false annuli. Comparisons of back-calculated lengths with observed lengths at each age were used to identify which false annuli had been incorrectly identified as true annuli, and vice-versa. The results confirmed the necessity of having information from other sources, e.g. seasonal length-frequency distributions of 0-group fish, to support the subjective interpretation of the scales.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1985.tb04302.x
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  • 10
    Electronic Resource
    Electronic Resource
    A pike management strategy for a trout fishery (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 27 (1985), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The efficiency of pike removal from a chalkstream trout fishery, by an angling society using electrofishing, was estimated over five successive autumns using mark-recapture methods. It averaged c. 50% for pike aged 1+ years or more. Numbers of 3+ and older pike decreased from 3.7 ha-1 (1980) to 1.4 ha-1 (1984), but there was no corresponding reduction in recruitment success. Both pike immigration and an inverse relationship between natural and fishing mortality could have reduced the effect of the pike culls. The mean weight of 0+ pike increased from 19.4 g to 48.2 g over the 5 years, but there was no change in the growth rates of older pike. Only the larger pike were able to eat the larger trout stocked, and the reduction in numbers of 3 + and older pike appears to have reduced the predation pressure on the trout population. Angling effort increased more than three-fold over the 5 years studied and rod-catches more than doubled, but catch-per-unit-effort was extremely variable between years. The increased rod catch occurred despite the decrease in numbers of large (〉 33 cm) trout stocked in the spring and early summer. Compared with pre-cull years, the angling society saved about ş850 (present day prices) by stocking fewer trout.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1985.tb03244.x
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