K. A. Shufran, D. W. Mornhinweg, C. A. Baker, D. R. Porter
Biotypes are infraspecific classifications based on biological rather than morphological characteristics. Cereal aphids are managed primarily by host plant resistance, and they often develop biotypes...
Plant Resistance Components of Two Greenbug (Homoptera: Aphididae) Resistant Wheats (2000)
Several biotypes of the greenbug, Schizaphis graminum (Rondani), attack winter wheat, Triticum aestivum L., on the Southern Plains every year. Two wheat germplasm sources of resistance (‘Largo’...
Graybosch, Robert A., Peterson, C. J., Porter, D. R., Chung, O. K.
The 1AL.1RS wheat-rye chromosomal translocation originally found in 'Amigo' wheat possesses resistance genes for stem rust, powdery mildew and greenbug biotypes B and C, but also has a negative...
PORTER, D. R., CAPELL, H. A., MCINNES, I., MUNRO, R., MADHOK, R., HUNTER, J. A., ...
The aim of the study was to see whether rheumatoid arthritis (RA) is becoming a milder disease. Information on the initial disease activity and patient function (modified Health Assessment...
The natural history of RA over a period of 6 months is not known, but this is of central importance to the design and interpretation of drug trials of possible DMARDs. We analysed the disease...
PORTER, D. R., MARSHALL, D. A. S., MADHOK, R., CAPELL, H., STURROCK, R. D.
Two cases of Pneumocystis carinii pneumonia in patients who developed lymphopenia secondary to immunosuppression with cytotoxic therapy but with a normal total white cell count, and neutrophil count...
The behaviour of carbon stripper foils under heavy ion bombardment (1977)
Whitmell, D.S., Armitage, B.H., Porter, D.R.
The lifetime of carbon stripper foils when bombarded whith 4.8 MeV A ++ ions in a hydrocarbon-free vacuum environment has been investigated. The lifetime of the foils is limited not by thickening but...
The behaviour of carbon stripper foils under heavy ion bombardment (1977)
Whitmell, D.S., Armitage, B.H., Porter, D.R.
The lifetime of carbon stripper foils when bombarded whith 4.8 MeV A ++ ions in a hydrocarbon-free vacuum environment has been investigated. The lifetime of the foils is limited not by thickening but...
The behaviour of carbon stripper foils under heavy ion bombardment (1977)
Whitmell, D.S., Armitage, B.H., Porter, D.R.
The lifetime of carbon stripper foils when bombarded whith 4.8 MeV A ++ ions in a hydrocarbon-free vacuum environment has been investigated. The lifetime of the foils is limited not by thickening but...
An Early Indicator of Resistance in Barley to Russian Wheat Aphid.
Belefant-Miller, H., Porter, D. R., Pierce, M. L., Mort, A. J.
During early stages of infestation by Russian wheat aphids (Diuraphis noxia [Mordvilko]; RWAs), barley (Hordeum vulgare L.) leaf cells collapsed and showed autofluorescence in the mesophyll and...
An Early Indicator of Resistance in Barley to Russian Wheat Aphid.
Belefant-Miller, H., Porter, D. R., Pierce, M. L., Mort, A. J.
During early stages of infestation by Russian wheat aphids (Diuraphis noxia [Mordvilko]; RWAs), barley (Hordeum vulgare L.) leaf cells collapsed and showed autofluorescence in the mesophyll and...
Second line (disease modifying) treatment in rheumatoid arthritis: which drug for which patient?
Capell, H A, Porter, D R, Madhok, R, Hunter, J A
OBJECTIVES--The objectives were to assess (a) the comparative merits of commonly used disease modifying drugs in the treatment of rheumatoid arthritis (RA) and (b) the influence of age, gender, and...
Outcome of second line therapy in rheumatoid arthritis.
Porter, D R, McInnes, I, Hunter, J, Capell, H A
OBJECTIVES--To study the functional outcome in patients with rheumatoid arthritis (RA) who tolerate second line drug therapy for five years. METHODS--We enrolled into prospective controlled trials,...