Find Research Outputs

1990
12 Citations

Phosphorylation-related accumulation of the 125K nuclear matrix protein mitotin in human mitotic cells

Zhelev, N. Z., Todorov, I. T., Philipova, R. N. & Hadjiolov, A. A., 1 Jan 1990, In : Journal of Cell Science. 95, 1, p. 59-64 6 p.

Research output: Contribution to journalArticle

Nuclear Matrix-Associated Proteins
Phosphorylation
Mitosis
Interphase
Cycloheximide

The importance of magnesium ions in yeast biotechnology

Walker, G. M., Maynard, A. I. & Johns, C. G. W., 1990, Fermentation technologies: industrial applications. Yu, P-L. (ed.). 1 ed. London: Elsevier Applied Science, p. 233-240

Research output: Chapter in Book/Report/Conference proceedingChapter

The quality of sewage flows and sediment in Dundee

Ashley, R., Coghlan, B. P. & Jefferies, C., 1 Oct 1990, In : Water Science and Technology. 22, 10-11, p. 39-46 8 p.

Research output: Contribution to journalArticle

sewage
suspended sediment
sediment
mass balance
weather
1989

Biased model reduction by simplified Routh approximation method

Lucas, T. N. 12 Oct 1989 In : Electronics Letters. 25, 21, p. 1467-1468 2 p.

Research output: Contribution to journalComment/debate

19 Citations

Identification of proton type in concentrated sweet solutions by pulsed NMR analysis

Birch, G. G., Grigor, J. & Derbyshire, W., Aug 1989, In : Journal of Solution Chemistry. 18, 8, p. 795-801 7 p.

Research output: Contribution to journalArticle

Protons
Nuclear magnetic resonance
nuclear magnetic resonance
protons
proportion
4 Citations

Induction of a heat shock-type response in fission yeast following nitrogen starvation

Walker, G. M. & McWilliams, P. G., Nov 1989, In : Yeast. 5, 6, p. 477-486 10 p.

Research output: Contribution to journalArticle

Heat-Shock Response
Schizosaccharomyces
Starvation
Yeast
Nitrogen
5 Citations
Padé Approximation
Model Reduction
Preservation
Relationships
Approximation
24 Citations

Nucleotide sequence and replication characteristics of RepFIB, a basic replicon of IncF plasmids

Saul, D., Spiers, A. J., McAnulty, J., Gibbs, M. G., Bergquist, P. L. & Hill, D. F., May 1989, In : Journal of Bacteriology. 171, 5, p. 2697-2707 11 p.

Research output: Contribution to journalArticle

Replicon
Plasmids
Open Reading Frames
DNA Polymerase I
Sequence Deletion

Physical and sensory interactions of maltol with sucrose

Bingham, A. F., Grigor, J. M. & Birch, G. G., 1 Oct 1989, In : Chemical Senses. 14, 5, p. 685 1 p.

Research output: Contribution to journalMeeting Abstract

23 Citations

Vasopressin-stimulated Ca2+ influx in rat hepatocytes is inhibited in high-K+ medium

Savage, A. L., Biffen, M. & Martin, B. R., 15 Jun 1989, In : Biochemical Journal. 260, 3, p. 821-827 7 p.

Research output: Contribution to journalArticle

Vasopressins
Cell membranes
Rats
Hepatocytes
Cell Membrane
2 Citations

X chromosome restriction fragment length polymorphisms in five racial groups: rare variant detected with the RC8 (DXS9) probe in the Marathi population, India

Wadhwa, R., Papiha, S., Lester, D., Ray, V., Saha, N. & Bhattacharya, S., 1989, In : Human Heredity. 39, 6, p. 309-12 4 p.

Research output: Contribution to journalArticle

X Chromosome
Restriction Fragment Length Polymorphisms
India
Alleles
Population
1988
10 Citations

Changes in a nuclear matrix antigen during the cell cycle: interphase and mitotic cells

Todorov, I. T., Philipova, P. N., Zhelev, N. Z. & Hadjiolov, A. A., 1988, In : Biology of the Cell. 62, 2, p. 105-110 6 p.

Research output: Contribution to journalArticle

Nuclear Matrix
Nuclear Antigens
Interphase
Cell Cycle
Antigens
16 Citations

Differentiation reduction method as a multipoint Padé approximant

Lucas, T. N. 7 Jan 1988 In : Electronics Letters. 24, 1, p. 60-61 2 p.

Research output: Contribution to journalArticle

15 Citations

Evaluation of scalar products of repeated integrals by Routh algorithm

Lucas, T. N. 29 Sep 1988 In : Electronics Letters. 24, 20, p. 1290-1291 2 p.

Research output: Contribution to journalArticle

Isolation of U5 snRNP particles

Pironcheva, G., Zhelev, N. & Russev, G., Dec 1988, In : Cytobios. 56, 224, p. 39-44 6 p.

Research output: Contribution to journalArticle

U5 Small Nuclear Ribonucleoproteins
Small Nuclear Ribonucleoproteins
Ammonium Chloride
DEAE-Cellulose
Connective Tissue Diseases
10 Citations

Scaled impulse energy approximation for model reduction

Lucas, T. N., Aug 1988, In : IEEE Transactions on Automatic Control. 33, 8, p. 791-793 3 p.

Research output: Contribution to journalArticle

1987
8 Citations

Further discussion on impulse energy approximation

Lucas, T. N., Feb 1987, In : IEEE Transactions on Automatic Control. 32, 2, p. 189-190 2 p.

Research output: Contribution to journalArticle

HLA class III and non-HLA blood genetic markers in Chinese

Serjeantson, S. W., Spiers, A., Ranford, P. & Hawkins, B. R., 1987, Human leucocyte antigens in Chinese. Hawkins, B. R. (ed.). Hong Kong: Hong Kong University Press, p. 107-115 9 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

18 Citations

Monoclonal antibody against a nuclear matrix antigen in proliferating human cells

Philipova, R. N., Zhelev, N. Z., Todorov, I. T. & Hadjiolov, A. A., 1987, In : Biology of the Cell. 60, 1, p. 1-8 8 p.

Research output: Contribution to journalArticle

Nuclear Matrix
Nuclear Antigens
Nuclear Matrix-Associated Proteins
Monoclonal Antibodies
Lymphocytes
5 Citations

Monoclonal antibody to a nucleolar antigen of human B-lymphoblastoid cells

Todorov, I. T., Philipova, R. N., Zhelev, N. Z. & Hadjiolov, A. A., Mar 1987, In : Cell Biology International Reports. 11, 3, p. 181-187 7 p.

Research output: Contribution to journalArticle

Monoclonal Antibodies
Antigens
Dactinomycin
Lymphocytes
Antibodies

Stable reduced-order models for discrete-time systems

Lucas, T. N. Jan 1987 In : IEE Proceedings D: Control Theory and Applications. 134, 1, p. 51 1 p.

Research output: Contribution to journalLetter

Taylor series approach to functional approximation for inversion of Laplace transforms

Lucas, T. N. 26 Feb 1987 In : Electronics Letters. 23, 5, p. 230 1 p.

Research output: Contribution to journalComment/debate

1986
19 Citations

Continued-fraction expansion about two or more points: a flexible approach to linear system reduction

Lucas, T. N., Jan 1986, In : Journal of the Franklin Institute. 321, 1, p. 49-60 12 p.

Research output: Contribution to journalArticle

Continued Fraction Expansion
Linear systems
Linear Systems
Poles
Reduced Model
8 Citations

Linear system reduction by the modified factor division method

Lucas, T. N. Nov 1986 In : IEE Proceedings D: Control Theory and Applications. 133, 6, p. 293-296 4 p.

Research output: Contribution to journalArticle

Linear systems
Transfer functions
67 Citations

Magnesium and cell cycle control: an update

Walker, G. M., 1986, In : Magnesium. 5, 1, p. 9-23 15 p.

Research output: Contribution to journalArticle

Cell Cycle Checkpoints
Magnesium
Cell Cycle
Cell Division
Bacteria
1985
20 Citations

Linear system reduction by impulse energy approximation

Lucas, T. N., Aug 1985, In : IEEE Transactions on Automatic Control. 30, 8, p. 784-786 3 p.

Research output: Contribution to journalArticle

Impulse response
Linear systems

Model reduction by condensed continued-fraction method

Lucas, T. N. 1 Aug 1985 In : Electronics Letters. 21, 16, p. 680-681 2 p.

Research output: Contribution to journalArticle

Transfer functions
1984
9 Citations

Biased model reduction by factor division

Lucas, T. N. 5 Jul 1984 In : Electronics Letters. 20, 14, p. 582–583 2 p.

Research output: Contribution to journalArticle

Transfer functions
7 Citations

Linear system reduction by continued-fraction expansion about three points

Lucas, T. N., 5 Jan 1984, In : Electronics Letters. 20, 1, p. 50-51 2 p.

Research output: Contribution to journalArticle

Linear systems
12 Citations

Magnesium and the regulation of germ-tube formation in Candida albicans

Walker, G. M., Sullivan, P. A. & Shepherd, M. G., 1 Aug 1984, In : Journal of General Microbiology. 130, 8, p. 1941-1945 5 p.

Research output: Contribution to journalArticle

Candida albicans
Magnesium
Yeasts
Acetylglucosamine
Ionophores

System reduction by Cauer continued-fraction expansion about s = a and s = ∞ alternately

Lucas, T. N. 12 Apr 1984 In : Electronics Letters. 20, 8, p. 335-336 2 p.

Research output: Contribution to journalComment/debate

1983
14 Citations

Continued-fraction algorithm for biased model reduction

Lucas, T. N. 9 Jun 1983 In : Electronics Letters. 19, 12, p. 444-445 2 p.

Research output: Contribution to journalArticle

Linear systems
12 Citations

Efficient algorithm for reduction by continued-fraction expansion about s = 0 and s = a

Lucas, T. N., 10 Nov 1983, In : Electronics Letters. 19, 23, p. 991–993 3 p.

Research output: Contribution to journalArticle

46 Citations

Factor division: a useful algorithm in model reduction

Lucas, T. N., Nov 1983, In : IEE Proceedings D: Control Theory and Applications. 130, 6, p. 362-364 3 p.

Research output: Contribution to journalArticle

Linear systems
Poles
19 Citations

Frequency-domain reduction of linear systems using Schwarz approximation

Lucas, T. N. & Davidson, A. M. 1983 In : International Journal of Control. 37, 5, p. 1167-1178 12 p.

Research output: Contribution to journalArticle

Linear systems
Polynomials
17 Citations

Linear system reduction by continued-fraction expansion about s = 0 and s = a alternately

Lucas, T. N., 31 Mar 1983, In : Electronics Letters. 19, 7, p. 244-246 3 p.

Research output: Contribution to journalArticle

Transfer functions
Linear systems
1982
30 Citations

Cell cycle specificity of certain antimicrotubular drugs in Schizosaccharomyces pombe

Walker, G. M., 1 Jan 1982, In : Journal of General Microbiology. 128, 1, p. 61-71 11 p.

Research output: Contribution to journalArticle

Schizosaccharomyces
Thiabendazole
Cell Cycle
Pharmaceutical Preparations
Microtubules
7 Citations

Magnesium-induced mitochondrial polymorphism and changes in respiratory metabolism in the fission yeast, Schizosaccharomyces pombe

Walker, G. M., Birch-Andersen, A., Hamburger, K. & Kramhøft, B., Jul 1982, In : Carlsberg Research Communications. 47, 4, p. 205-214 10 p.

Research output: Contribution to journalArticle

Schizosaccharomyces
Polymorphism
Metabolism
Yeast
Magnesium
1980
7 Citations

Changes in calcium and magnesium levels during heat-shock synchronized cell division in Tetrahymena

Walker, G. M. & Zeuthen, E., Jun 1980, In : Experimental Cell Research. 127, 2, p. 487-490 4 p.

Research output: Contribution to journalArticle

Tetrahymena
Cell Division
Magnesium
Shock
Hot Temperature

Correlation of glutamine synthetase activity with cell magnesium concentration during cell division in yeast synchronized by induction

Walker, G. M., Thomson, J. C., Slaughter, C. & Duffus, J. H., 1 Oct 1980, In : Journal of General Microbiology. 120, 2, p. 535-537 3 p.

Research output: Contribution to journalArticle

Glutamate-Ammonia Ligase
Cell Division
Magnesium
Yeasts
Schizosaccharomyces
31 Citations

Magnesium ions and the control of the cell cycle in yeast

Walker, G. M. & Duffus, J. H., 1 Apr 1980, In : Journal of Cell Science. 42, 1, p. 329-356 28 p.

Research output: Contribution to journalArticle

Cell Cycle Checkpoints
Magnesium
Yeasts
Ions
Schizosaccharomyces

Perturbation of enzyme activity in cells of the fission yeast Schizosaccharomyces pombe subjected to continuous-flow centrifugation

Walker, G. M., Thomson, J. C., Slaughter, J. C. & Duffus, J. H., 1 Aug 1980, In : Journal of General Microbiology. 119, 2, p. 543-546 4 p.

Research output: Contribution to journalArticle

Schizosaccharomyces
Centrifugation
Glutamate-Ammonia Ligase
Enzymes
Cell Cycle
1979
6 Citations
Schizosaccharomyces pombe
chelating agents
cell division
antibiotics
cations
1978
3 Citations

Synchronization of cell division in the fission yeast Schizosaccharomyces pombe by ethylenediaminetetra-acetic acid

Ahluwalia, B., Duffus, J. H., Paterson, L. J. & Walker, G. M., 1 Jun 1978, In : Journal of General Microbiology. 106, 2, p. 261-264 4 p.

Research output: Contribution to journalArticle

Schizosaccharomyces
Edetic Acid
Acetic Acid
Cell Division
Nucleic Acids
1976
5 Citations

Linear system reduction using Schwarz canonical form

Davidson, A. M. & Lucas, T. N. 24 Jun 1976 In : Electronics Letters. 12, 13, p. 324 1 p.

Research output: Contribution to journalArticle

Linear systems
1974
33 Citations

Linear-system reduction by continued-fraction expansion about a general point

Davidson, A. M. & Lucas, T. N. 11 Jul 1974 In : Electronics Letters. 10, 14, p. 271-273 3 p.

Research output: Contribution to journalArticle

Linear systems
Communication systems