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Differentiation between cucurbit yellow stunting disorder virus and beet pseudo-yellows virus by a reverse transcription-polymerase chain reaction assay
(1998-06)
Two whitefly-transmitted viruses elicit identical symptoms of interveinal chlorosis (yellowing) in greenhouse- and field-grown cucurbits in Mediterranean countries. The agents of these diseases are partially characterized ...
Changes in the zymogenic cell populations of the abomasa of sheep infected with Haemonchus contortus
(1998-06)
The effects of dietary urea supplementation and of a 10-week trickle infection regime, simulating chronic exposure to Haemonchus contortus, on the zymogenic population of the abomasa of Hampshire Down lambs was examined, ...
The nucleotide sequence of satellite tobacco necrosis virus strain C and helper-assisted replication of wild-type and mutant clones of the virus
(1998-06)
The complete nucleotide sequence of satellite tobacco necrosis virus strain C (STNV-C) was determined. The genome has a similar overall organization to two STNV isolates studied previously but differs significantly from ...
Effects of light leaf spot (Pyrenopeziza brassicae) on yield of winter oilseed rape (Brassica napus)
(1998-06)
The relationship between development of light leaf spot and yield loss in winter oilseed rape was analysed, initially using data from three experiments at sites near Aberdeen in Scotland in the seasons 1991/92, 1992/93 and ...
Experimental cross section of Sm-144(alpha, gamma)Gd-148 and implications for the p-process
(1998-05-20)
The cross section of the Sm-144(alpha, gamma) Gd-148 reaction has been measured at bombarding energies in the 10.5-13.4 MeV range using an activation method based on the off-line alpha-activity measurement of the Gd-148 ...
A sex-linked Ace gene, not linked to insensitive acetylcholinesterase-mediated insecticide resistance in Culex pipiens
(1998-05)
An acetylcholinesterase (AChE) gene, Ace.x, showing 93% identity of deduced amino acid sequence to Anopheles stephensi Ace has been cloned from a Culex pipiens strain homozygous for insensitive AChE (iAChE) mediated ...
The role of the general practitioner in the community care of people with HIV infection and AIDS : a comparative study of high- and low-prevalence areas in England
(1998-05)
Background. Policy for the care of people suffering from HIV and AIDS has changed over the past decade. Schemes for shared primary and secondary care have been met with varying success, and patients may be reluctant to ...
Pharmacodynamics and pharmacokinetics of tolfenamicacid in ruminating calves: Evaluation in models of acute inflammation
(1998-05)
Injections of mild irritants intradermally (carrageenan, zymosan and dextran) and intracaveally (carrageenan)in a tissue cage model of inflammation were used in studies of the pharmacodynamics and pharmacokinetics of ...
Retrieval of physical particle properties from lidar observations of extinction and backscatter at multiple wavelengths
(1998-04-20)
Tropospheric height profiles of five particle backscatter coefficients between 355 and 800 nm and particle extinction coefficients at 355 and 532 nm measured with a multiple-wavelength backscatter lidar and a dual-wavelength. ...