Find Research Outputs

1985
5 Citations (Scopus)

Obstetric outcome of meconium stained liquor in labour.

Arulkumaran, S., Yeoh, S. C., Gibb, D. M., Ingemarsson, I. & Ratnam, S. S., Dec 1985, In : Singapore Medical Journal. 26, 7, p. 523-526 4 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

On the electromagnetic detection of the thickness of a coal or lignite seam with slate backing

Sahalos, J. N. & Kyriacou, G., 1985, In : Journal of the Franklin Institute. 320, 2, p. 83-101 19 p.

Research output: Contribution to journalArticle

Slate
Lignite
Earth (planet)
Coal
Magnetic fields
1 Citation (Scopus)

On the Gain Maximization of a Dual Frequency and Direction Array Consisting of Wire Antennas

Zimourtopoulos, P. & Sahalos, J. N., 1985, In : IEEE Transactions on Antennas and Propagation. 33, 8, p. 874-880 7 p.

Research output: Contribution to journalArticle

antennas
wire
Wire
Antennas
directional antennas
37 Citations (Scopus)

On The Narrow--Band Microwave Filter Design Using a Dielectric Rod

Sahalos, J. N. & Vafiadis, E., 1985, In : IEEE Transactions on Microwave Theory and Techniques. 33, 11, p. 1165-1171 7 p.

Research output: Contribution to journalArticle

microwave filters
Microwave filters
narrowband
rods
Notch filters
1 Citation (Scopus)

On the treatment of wire antennas near an elliptic cylinder

Siakavara, K., Papadimitraki-Chlichlia, H. & Sahalos, J. N., Sep 1985, In : Archiv für Elektrotechnik. 68, 5, p. 313-322 10 p.

Research output: Contribution to journalArticle

Method of moments
Antenna
Wire
Antennas
Hybrid Method
2 Citations (Scopus)

Perinatal Outcome of Induced Labour

Arulkumaran, S., Gibb, D. M. F., Heng, S. H. & Ratnam, S. S., 1985, In : Asia‐Oceania Journal of Obstetrics and Gynaecology. 11, 1, p. 33-37 5 p.

Research output: Contribution to journalArticle

Induced Labor
Cesarean Section
Artificial Membranes
Rupture
Prolonged Pregnancy
54 Citations (Scopus)

Randomised controlled trial of adenine arabinoside 5′-monophosphate (ARA-AMP) in chronic hepatitis B virus infection

Weller, I. V. D., Lok, A. S. F., Mindel, A., Karayiannis, P., Galpin, S., Monjardino, J., Sherlock, S. & Thomas, H. C., 1985, In : Gut. 26, 7, p. 745-751 7 p.

Research output: Contribution to journalArticle

Vidarabine Phosphate
Chronic Hepatitis B
Virus Diseases
Adenosine Monophosphate
Hepatitis B virus
29 Citations (Scopus)

Single injection of terbutaline in term labor. I. Effect on fetal pH in cases with prolonged bradycardia

Ingemarsson, I., Arulkumaran, S. & Ratnam, S. S., 15 Dec 1985, In : American Journal of Obstetrics and Gynecology. 153, 8, p. 859-865 7 p.

Research output: Contribution to journalArticle

Terbutaline
Fetal Heart Rate
Bradycardia
Injections
Cesarean Section
23 Citations (Scopus)

Single injection of terbutaline in term labor. II. Effect on uterine activity

Ingemarsson, I., Arulkumaran, S. & Ratnam, S. S., 15 Dec 1985, In : American Journal of Obstetrics and Gynecology. 153, 8, p. 865-869 5 p.

Research output: Contribution to journalArticle

Terbutaline
Fetal Distress
Injections
Transducers
Intravenous Injections
26 Citations (Scopus)

Studies of HBV replication during acute hepatitis followed by recovery and acute hepatitis progressing to chronic disease

Lok, A. S. F., Karayiannis, P., Jowett, T. P., Fowler, M. J. F., Farci, P., Monjardino, J. & Thomas, H. C., 1985, In : Journal of Hepatology. 1, 6, p. 671-679 9 p.

Research output: Contribution to journalArticle

Virus Replication
Hepatitis B virus
Hepatitis
Chronic Disease
Virus Diseases
4 Citations (Scopus)

The discontinuity problem of a cylindrical dielectric post in a waveguide and its application on the dielectric constant measurements of liquids

Gotsis, N., Vafiadis, E. E. & Sahalos, J. N., Jul 1985, In : Archiv für Elektrotechnik. 68, 4, p. 249-257 9 p.

Research output: Contribution to journalArticle

Dielectric Constant
Waveguide
Dielectric properties of liquids
Discontinuity
Waveguides
18 Citations (Scopus)

Total uterine activity in induced labour—an index of cervical and pelvic tissue resistance

ARULKUMARAN, S., GIBB, D. M. F., RATNAM, S. S., LUN, K. C. & HENG, S. H., 1985, In : BJOG: An International Journal of Obstetrics & Gynaecology. 92, 7, p. 693-697 5 p.

Research output: Contribution to journalArticle

Induced Labor
Oxytocin
Parity
Infusion Pumps
Umbilical Veins
13 Citations (Scopus)

Transient blindness associated with pregnancy‐induced hypertension. Case reports

ARULKUMARAN, S., GIBB, D. M. F., RAUFF, M., KEK, L. P. & RATNAM, S. S., 1985, In : BJOG: An International Journal of Obstetrics & Gynaecology. 92, 8, p. 847-849 3 p.

Research output: Contribution to journalArticle

1984
10 Citations (Scopus)

Abnormal T-Lymphocyte Subsets in Hemophilia: Relation to HLA Proteins in Plasma Products

Lee, C. A., Kernoff, P. B. A., Karayiannis, P., Waters, J. & Thomas, H. C., 19 Apr 1984, In : New England Journal of Medicine. 310, 16, p. 1058 1 p.

Research output: Contribution to journalLetter

Leukocyte Transfusion
CD4-CD8 Ratio
Factor IX
Hemophilia A
T-Lymphocyte Subsets
20 Citations (Scopus)

Aetiology of acute sporadic hepatitis in adults in kenya

Greenfield, C., Karayiannis, P., Wankya, B. M., Shah, M. V., Tukei, P., Galpin, S., Jowett, T. P. & Thomas, H. C., 1984, In : Journal of Medical Virology. 14, 4, p. 357-362 6 p.

Research output: Contribution to journalArticle

Kenya
Hepatitis B virus
Hepatitis
Hepatitis A virus
Virus Diseases
41 Citations (Scopus)

Characteristics of uterine activity in nulliparous labour

GIBB, D. M. F., ARULKUMARAN, S., LUN, K. C. & RATNAM, S. S., 1984, In : BJOG: An International Journal of Obstetrics & Gynaecology. 91, 3, p. 220-227 8 p.

Research output: Contribution to journalArticle

Pressure Transducers
First Labor Stage
105 Citations (Scopus)

Contribution of low level HBV replication to continuing inflammatory activity in patients with anti-HBe positive chronic hepatitis B virus infection

Lok, A. S. F., Hadziyannis, S. J., Weller, I. V. D., Karvountzis, M. G., Monjardino, J., Karayiannis, P., Montano, L. & Thomas, H. C., 1984, In : Gut. 25, 11, p. 1283-1287 5 p.

Research output: Contribution to journalArticle

Chronic Hepatitis B
Virus Diseases
Hepatitis B virus
Hepatitis B Core Antigens
Liver Diseases
1 Citation (Scopus)

DOES COITUS EMBARRASS THE FETUS?

Viegas, O. A. C. & Arulkumaran, S., 5 May 1984, In : The Lancet. 323, 8384, p. 1015 1 p.

Research output: Contribution to journalLetter

27 Citations (Scopus)

Echocardiographic diagnosis of unruptured sinus of valsalva aneurysm

Lewis, B. S. & Agathangelou, N. E., 1984, In : American Heart Journal. 107, 5 PART 1, p. 1025-1027 3 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Fields at the Tip of an Elliptic Cone

Vafiadis, E. & Sahalos, J. N., 1984, In : Proceedings of the IEEE. 72, 8, p. 1089-1091 3 p.

Research output: Contribution to journalArticle

Cones
Electric fields
Magnetic fields

Immunologic mechanisms of cell lysis in Hepatitis B virus infection.

Pignatelli, M., Thomas, H. C., Goodall, A. H., Waters, J., Karayiannis, P. & Brown, D., 1984, Viral Hepatitis and liver disease. Vyas, GN., Dienstag, JL. & Hoofnagle, JH. (eds.). New York: Grune & Stratton, p. 167 177 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

18 Citations (Scopus)

Nile stimulation in late pregnancy causing uterine hyperstimulation and profound fetal bradycardia

VIEGAS, O. A. C., ARULKUMARAN, S., GIBB, D. M. F. & RATNAM, S. S., 1984, In : BJOG: An International Journal of Obstetrics & Gynaecology. 91, 4, p. 364-366 3 p.

Research output: Contribution to journalArticle

Oxytocin
Bradycardia
Fetus
Pregnancy

Nipple stimulation in late pregnancy causing uterine hyperstimulation and profound fetal bradycardia

Viegas, O. A. C., Arulkumaran, S., Gibb, D. M. F. & Ratnam, S. S., 1984, In : Obstetrical and Gynecological Survey. 39, 11, p. 685-686 2 p.

Research output: Contribution to journalArticle

Nipples
Oxytocin
Bradycardia
Pregnancy
Fetus

Recommendations for a maximum surgical blood ordering schedule in obstetrics and gynaecology.

Arulkumaran, S., Ong, Y. W., Ratnam, S. S., Tham, S. Y. & Lun, K. C., Apr 1984, In : Singapore Medical Journal. 25, 2, p. 80-83 4 p.

Research output: Contribution to journalArticle

36 Citations (Scopus)

Solubilization in high yield of opioid receptors retaining high-affinity delta, mu and kappa binding sites

Demoliou-Mason, C. D. & Barnard, E. A., 21 May 1984, In : FEBS Letters. 170, 2, p. 378-382 5 p.

Research output: Contribution to journalArticle

Digitonin
Opioid Receptors
Binding Sites
Membranes
Opiate Alkaloids
7 Citations (Scopus)

Spleen size in chronic renal failure

Platts, M. M., Anastassiades, E., Sheriff, S., Smith, S. & Bartolo, D. C., 1984, In : British Medical Journal. 289, 6456, p. 1415-1418 4 p.

Research output: Contribution to journalArticle

Chronic Kidney Failure
Renal Dialysis
Spleen
Ethylene Oxide
Iron Overload
39 Citations (Scopus)

The effect of parity on uterine activity in labour

ARULKUMARAN, S., GIBB, D. M. F., LUN, K. C., HENG, S. H. & RATNAM, S. S., 1984, In : BJOG: An International Journal of Obstetrics & Gynaecology. 91, 9, p. 843-848 6 p.

Research output: Contribution to journalArticle

Parity
Dilatation
Pressure Transducers
Singapore
Uterus

The irritable bowel and ectopic pregnancy: a connection?

Haslam, D. A., Sep 1984, In : Practitioner. 228, 1395, 1 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

The removal of hepatitis B virus from factor VIII concentrates by fractionation on ethylene maleic anhydride polyelectrolyte

Galpin, S. A., Karayiannis, P., Middleton, S. M. & Thomas, H. C., 1984, In : Journal of Medical Virology. 14, 3, p. 229-233 5 p.

Research output: Contribution to journalArticle

Factor VIII
Hepatitis B virus
Virus Diseases
Hepatitis B Surface Antigens
Virion
79 Citations (Scopus)

Thrice weekly lymphoblastoid interferon is effective in inhibiting hepatitis B virus replication

Lok, A. S. F., Weller, I. V. D., Karayiannis, P., Brown, D., Fowler, M. J. F., Monjardino, J., Thomas, H. C. & Sherlock, S., 1984, In : Liver. 4, 1, p. 45-49 5 p.

Research output: Contribution to journalArticle

Virus Replication
Hepatitis B virus
Interferon-alpha
Intramuscular Injections
Chronic Hepatitis B
1983
322 Citations (Scopus)

AVERAGES OF FORECASTS: SOME EMPIRICAL RESULTS.

Makridakis, S. & Winkler, R. L., 1 Jan 1983, In : Management Science. 29, 7, p. 987-996 10 p.

Research output: Contribution to journalArticle

Empirical results
Forecasting method
Forecasting accuracy
Combining forecasts
Data generating process
13 Citations (Scopus)

Diffraction by a perfectly conducting elliptic cone

Vafiadis, E. & Sahalos, J. N., Mar 1983, In : Archiv für Elektrotechnik. 66, 2, p. 117-124 8 p.

Research output: Contribution to journalArticle

Cones
Diffraction
Cone
Eigenvalues and Eigenfunctions
Green's function
18 Citations (Scopus)

Experimental infection of tamarins with human non‐a, non‐b hepatitis virus

Karayiannis, P., Bamber, M., Thomas, H. C., Scheuer, P. J., Cohn, D. & Hurn, B. A. L., 1983, In : Journal of Medical Virology. 11, 3, p. 251-256 6 p.

Research output: Contribution to journalArticle

Hepatitis Viruses
Hepatitis
Factor VIII
Infection
Alanine Transaminase
11 Citations (Scopus)

Failure to detect nucleic acid homology between some non‐A, Non‐B viruses and hepatitis B virus DNA

Fowler, M. J. F., Monjardino, J., Weller, I. V., Bamber, M., Karayiannis, P., Zuckerman, A. J. & Thomas, H. C., 1983, In : Journal of Medical Virology. 12, 3, p. 205-213 9 p.

Research output: Contribution to journalArticle

Viral DNA
Hepatitis B
Hepatitis B virus
Nucleic Acids
Primates
17 Citations (Scopus)

Fatal brain oedema due to accidental water intoxication

Anastassiades, E., Wilson, R., Stewart, J. S. W. & Perkin, G. D., 1983, In : British Medical Journal. 287, 6400, p. 1181-1182 2 p.

Research output: Contribution to journalArticle

Water Intoxication
Brain Edema
Coma
Headache
Psychiatry

Frequency Determination for Maximizing Array Gain of Parallel Wire Antennae

Sahalos, J. & Kyprianidis, J., 1983, In : Journal of the Franklin Institute. 316, 5, p. 361-372 12 p.

Research output: Contribution to journalArticle

Antenna
Wire
Antennas
Perturbation Method
Eigenvalue

From the editors

Makridakis, S., Armstrong, J. S., Carbone, R. & Fildes, R., 1 Jan 1983, In : Journal of Forecasting. 2, 2, p. i-i

Research output: Contribution to journalEditorial

From the editors

Makridakis, S., Armstrong, J. S., Carbone, R. & Fildes, R., 1 Jan 1983, In : Journal of Forecasting. 2, 3, p. i-i

Research output: Contribution to journalEditorial

From the editors

Makridakis, S., Armstrong, J. S., Carbone, R. & Fildes, R., 1 Jan 1983, In : Journal of Forecasting. 2, 1, p. i-i

Research output: Contribution to journalEditorial

10 Citations (Scopus)

Hypertrophic cardiomyopathy in South African Blacks

Lewis, B. S., Agathangelou, N. E., Flax, H., Taams, M. A. & Barlow, J. B., 1983, In : South African Medical Journal. 63, 8, p. 266-269 4 p.

Research output: Contribution to journalArticle

Hypertrophic Cardiomyopathy
Southern Africa
Population Groups
Population
Therapeutics

Improving the care of asthmatic patients in general practice.

Hilton, S. & Sibbald, B., 3 Sep 1983, In : British Medical Journal (Clinical research ed.). 287, 6393, p. 686 1 p.

Research output: Contribution to journalLetter

4 Citations (Scopus)

INPUT IMPEDANCE OF A MONOPOLE ANTENNA ON A FINITE POLYGONAL GROUND PLANE.

Zimourtopoulos, P. E., Sahalos, J. N. & Thiele, G. A., Jun 1983, In : IEE Proceedings H: Microwaves Optics and Antennas. 130, 4, p. 276-280 5 p.

Research output: Contribution to journalArticle

Monopole antennas
Antenna grounds
Diffraction
6 Citations (Scopus)

Investigation into Nonperiodic Lamé Functions and Application to Electromagnetic Problems

Vafiadis, E. & Sahalos, J. N., 1983, In : Journal of the Franklin Institute. 315, 3, p. 195-210 16 p.

Research output: Contribution to journalArticle

Eigenvalues and Eigenfunctions
Neumann Problem
Eigenvalues and eigenfunctions
Dirichlet Problem
Cones

Left atrial myxoma in a Black man. A case report describing the neurological and electrocardiographic manifestations

Essop, A. R., Feldman, C., Lewis, B. S. & Agathangelou, N. E., 1983, In : South African Medical Journal. 64, 27, p. 1070-1073 4 p.

Research output: Contribution to journalArticle

Myxoma
Neurologic Manifestations
Echocardiography
55 Citations (Scopus)

Molecular properties of opioid receptors

Barnard, E. A. & Demoliou-Mason, C., 1983, In : British Medical Bulletin. 39, 1, p. 37-45 9 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Mutual Coupling and Radiation Patterns of Two Slots Asymmetrically Located on a Square Plate

Commatas, C. G. & Sahalos, J. N., 1983, In : IEEE Transactions on Antennas and Propagation. 31, 3, p. 531-535 5 p.

Research output: Contribution to journalArticle

Slot antennas
Directional patterns (antenna)
slots
Degradation
slot antennas
6 Citations (Scopus)

PERIODIC LAME FUNCTIONS AND APPLICATIONS TO THE DIFFRACTION BY A PLANE ANGULAR SECTOR.

Sahalos, J. N. & Thiele, G. A., 1983, In : Canadian journal of physics. 61, 12, p. 1583-1591 9 p.

Research output: Contribution to journalArticle

Lame functions
periodic functions
eigenvectors
eigenvalues
sectors
6 Citations (Scopus)

Prevalence of a non‐A, non‐B‐associated antigen/antibody system detected by radioimmunoassay in acute and chronic liver disease

Luo, KX. X., Karayiannis, P., Burns, D. M., Bamber, M., Kernoff, P. & Thomas, H., 1983, In : Journal of Medical Virology. 12, 4, p. 253-265 13 p.

Research output: Contribution to journalArticle

Radioimmunoassay
Liver Diseases
Chronic Disease
Antigens
Hepatitis
2 Citations (Scopus)

Real-Time 2-dimensional echocardiographic imaging of rightsided cardiac vegetations in ventricular septal defect

Agathangelou, N. E., Dos Santos, L. A. & Lewis, B. S., 1983, In : The American Journal of Cardiology. 52, 3, p. 420-421 2 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Real-time 2-dimensional echocardiographic visualization of thrombus on a Björk-Shiley mitral valve prosthesis. Emergency cesarean section and mitral valve replacement in late pregnancy

Lewis, B. S., Agathangelou, N. E., Dos Santos, L. A. & Antunes, M. J., 1 Mar 1983, In : The American Journal of Cardiology. 51, 5, p. 908-909 2 p.

Research output: Contribution to journalArticle