24,200 Result(s)

Article

Pharmacology of Ch‘ang Shan (Dichroa febrifuga), a Chinese Antimalarial Herb

FOR centuries in China the roots (Chang Shan) and the leaves (Shuu Chi) of Dichroa febrifuga, Lour, have been used against malarial fevers. In our first report¹ in 1943, it was recorded that a crude extract of th...

C. S. JANG, F. Y. Fu, K. C. HUANG, C. Y. WANG in Nature (1948)

Article

Glycogen Production from Glucose with Desoxycorticosterone and 11-Dehydro- 17-hydroxycorticosterone

IT is often said that the different corticosteroids have qualitatively different activities. Desoxycorticosterone is believed to act only on electrolyte metabolism, while 11-dehydro-17-hydroxycorticosterone (c...

F. C. WANG in Nature (1950)

Article

Acidic Proteins of Cellular Nuclei

AN alkali-soluble protein fraction, obtained from calf thymus nuclei, was reported by Mayer and Gulick¹. Upon addition of acid to the alkaline solution, precipitation of this fraction occurred at about pH 6. Sted...

TUNG-YUE WANG, WILLIAM R. KIRKHAM, R. DUNCAN DALLAM, DENNIS T. MAYER… in Nature (1950)

Article

Chinese Astronomical Clockwork

DR. JOSEPH NEEDHAM, WANG LING, DR. DEREK J. PRICE in Nature (1956)

Article

Effect of Metal Ions on the Development of Wheat Stem Rust

DURING a study of the effect of benzimidazole, dimethylbenzimidazole, glucose and metal ions on the development of rust in detached leaves, certain metal ions have been noted to be extremely effective in the p...

D. WANG, P. K. ISAAC, E. R. WAYGOOD in Nature (1958)

Article

An Ion-Exchange Resin Method for the Fractionation of Alcoholic Plant Extracts

DURING a study of the effect of benzimidazole on the carbon-14 labelled amino-acid metabolism in detached wheat leaves, it was found desirable to fractionate an alcoholic extract (less the chloroform-soluble s...

DALTON WANG in Nature (1960)

Article

Phenylketonuria in Infant Monkeys

WE had previously established¹ that the characteristic aberrations found in human phenylketonuria, namely, high plasma phenylalanine, phenylketones in the urine, and characteristic odour were observed in adolesce...

HARRY A. WAISMAN, HWA L. WANG, GAIL PALMER, HARRY F. HARLOW in Nature (1960)

Article

Ring Chromosomes in Human Beings

RING chromosomes have been found in some species, the most intensively studied being maize¹ and Drosophila². They have also been induced by irradiating human cells in vitro³ and are known to occur in human tumour...

HSI-CHANG WANG, JOHN MELNYK, LYLE T. MCDONALD, IRENE A. UCHIDA, DAVID H. CARR… in Nature (1962)

Chapter and Conference Paper

Cryopum** in the Near Free-Molecule Flow Region

Fluid mechanics can be analytically separated into the three flow regions—continuum, transition and free-molecular--by use of the Knudsen number Kn (the ratio of the mean free path to a characteristic body dim...

E. S. J. Wang, J. A. Collins Jr., J. D. Haygood in Advances in Cryogenic Engineering (1963)

Article

Absorption Spectra of Silver Vapour

THE line spectrum of silver vapour in absorption was first examined by R. G. Loyarte and A. T. Williams¹. In their work the metal was vaporized in an electric oven of King's type at temperatures between 1,200° an...

CHOONG SHIN-PIAW, WANG LOONG-SENG in Nature (1964)

Article

Infra-nuclear Distribution of Transaminases

IT has previously been shown¹ that isolated calf thymus nuclei prepared by the sucrose-CaCl₂ procedure₂ contain a free amino-acid pool. Of the free amino-acids, glutamic acid represents about 40 per cent. The pre...

KUANG MEI WANG, TUNG-YUE WANG in Nature (1964)

Chapter and Conference Paper

Multishielding—An Advanced Superinsulation Technique

This paper describes a new technique for greatly reducing the evaporation from multiple-layer-insulated dewars, especially those containing helium or hydrogen. This is done by using the refrigeration of the es...

J. A. Paivanas, O. P. Roberts, D. I-J. Wang in Advances in Cryogenic Engineering (1965)

Article

Polyamide Layer Chromatography of DNP Amino-acids

METHODS for the identification of DNP amino-acids by paper or thin-layer chromatography were used to determine the N-terminal group in polypeptide structures. Recent developments in silica-gel thin-layer chromato...

KUNG-TSUNG WANG, JOYCE MEI-KUO HUANG in Nature (1965)

Article

Polyamide Layer Chromatography of Oestrogens

THE oestrogens were investigated by Struck¹ and Lisboa et al.² by thin-layer chromatography using silica-gel. The solvent systems for the silica-gel thin-layer were well-established ones which have been used for ...

YIH CHIH TUNG, KUNG-TSUNG WANG in Nature (1965)

Article

Polyamide Layer Chromatography of Lactones

POLYAMIDE is a specific chromatographic adsorbent for several kinds of organic compounds, as has been shown by Carelli et al.¹ (phenols and fatty acids by powder column), Davidek² (antioxidants by powder thin lay...

KUNG-TSUNG WANG, IRIS S. Y. WANG in Nature (1966)

Article

Photochemistry of 5-Bromouracils : Isolation of 5,5′-Diuracils

HIROSHI ISHIHARA, PROF. SHIH YI WANG in Nature (1966)

Article

Effect of Deoxyribonucleic Acid and Histone on the Nuclear Ribosomal Incorporation System

IT is generally recognized that the role of DNA in protein synthesis is to provide a template for the transcription of messenger RNA which in turn translates the genetic code into amino-acid sequences. Holland...

TUNG YUE WANG in Nature (1966)

Article

Polyamide Layer Chromatography of Indoles

POLYAMIDE was found to adsorb various types of compounds by hydrogen bonding. Carelli et al. were the first to report that polyamide powder is an excellent adsorbent for column chromatography of phenols and lower...

KUNG-TSUNG WANG, YIH-CHIH TUNG, HER-HWEY LAI in Nature (1967)