Steyn, Pieter L.: search on Z-Library

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1

Workplace spirituality and the ethical behaviour of project managers

Van der Walt, Freda, Steyn, Pieter

Journal:

SA Journal of Industrial Psychology

Year:

2019

File:

PDF, 689 KB

2019

2

Urban heat island in Bloemfontein during winter

Snyman, Pieter, Steyn, A. Stephen

Journal:

Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie

Year:

2013

File:

PDF, 883 KB

2013

3

The Need for a Chief Portfolio Officer in Organizations

Journal:

Journal of Project, Program & Portfolio Management

Year:

2011

Language:

english

File:

PDF, 601 KB

english, 2011

4

Bufadienolides of plant and animal origin

S. Steyn, Pieter, R. van Heerden, Fanie

Journal:

Natural Product Reports

Year:

1998

Language:

english

File:

PDF, 321 KB

english, 1998

5

Level of physical activity and CHD risk factors in black South African men

SPARLING, PHILLIP B., NOAKES, TIMOTHY D., STEYN, KRISELA, JORDAAN, ESME, JOOSTE, PIETER L., BOURNE, LESLEY T., BADENHORST, CHARL

Journal:

Medicine & Science in Sports & Exercise

Year:

1994

File:

PDF, 640 KB

1994

6

A reinvestigation of the structure of monochaetin, a metabolite of Monochaetia compta

Steyn, Pieter S., Vleggaar, Robert

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1986

Language:

english

File:

PDF, 223 KB

english, 1986

7

Carbon—carbon coupling constants derived from biosynthetic studies

R. Marthinus Horak, Pieter S. Steyn, Robert Vleggaar

Journal:

Magnetic Resonance in Chemistry

Year:

1985

Language:

english

File:

PDF, 2.05 MB

english, 1985

8

Synthesis, complete 1H and 13C NMR assignment and crystal structure of novel epoxide derivatives of cytochalasin B

Pieter S. Steyn, Jaco C. Breytenbach, Jeanne H. Botha, Manuel A. Fernandes, Philippus L. Wessels

Journal:

Magnetic Resonance in Chemistry

Year:

2008

Language:

english

File:

PDF, 194 KB

english, 2008

9

The chemistry and 13C NMR assignments of oxaline, a novel alkaloid from penicillium oxalicum

Dietmar W. Nagel, Klaus G.R. Pachler, Pieter S. Steyn, Robert Vleggaar, Philippus L. Wessels

Journal:

Year:

1976

Language:

english

File:

PDF, 793 KB

english, 1976

10

Pigments from fusarium moniliforme sheldon : Structure and 13C nuclear magnetic resonance assignments of an azaanthraquinone and three naphthoquinones

Pieter S. Steyn, Philippus L. Wessels, Walter F.O. Marasas

Journal:

Year:

1979

Language:

english

File:

PDF, 397 KB

english, 1979

11

Biosynthesis of cyclopiazonic acids in Penicillium cyclopium: The isolation of dimethylallylpyrophosphate: Cyclo-acetoacetyltryptophanyl dimethylallyltransferase

Robert M. McGrath, Pieter S. Steyn, Nicolaas P. Ferreira, Dianne C. Neethling

Journal:

Bioorganic Chemistry

Year:

1976

Language:

english

File:

PDF, 685 KB

english, 1976

12

High-performance liquid chromatography and thin-layer chromatography of penitrems A–F, tremorgenic mycotoxins from Penicillium crustosum

Catherine M. Maes, Pieter S. Steyn, Fanie R. Van Heerden

Journal:

Journal of Chromatography A

Year:

1982

Language:

english

File:

PDF, 334 KB

english, 1982

13

Alkaloids from Aspergillus caespitosus

Pieter S. Steyn, Robert Vleggaar, Christiaan J. Rabie

Journal:

Year:

1981

Language:

english

File:

PDF, 176 KB

english, 1981

14

12,13-Dihydro-12-hydroxyaustamide, a new dioxopiperazine from Aspergillus ustus

Pieter S. Steyn, Robert Vleggaar

Journal:

Year:

1976

Language:

english

File:

PDF, 279 KB

english, 1976

15

Structure elucidation and absolute configuration of phomopsin a, a hexapeptide mycotoxin produced by phomopsis leptostromiformis

Claude C.J. Culvenor, John A. Edgar, Maureen F. Mackay, Charles P. Gorst-Allman, Walter F.O. Marasas, Pieter S. Steyn, Robert Vleggaar, Philippus L. Wessels

Journal:

Year:

1989

Language:

english

File:

PDF, 1.31 MB

english, 1989

16

Conformational analysis of the cyclic peptide rhizonin a in solution and crystalline state

Maria Potgieter, Pieter S. Steyn, Fanie R. van Heerden, Petrus H. van Rooyen, Phillipus L. Wessels

Journal:

Year:

1989

Language:

english

File:

PDF, 900 KB

english, 1989

17

Biosynthesis of PR toxin by Penicillium roqueforti, Part 2 evidence for an hydride shift from 2H N.M.R. spectroscopy

Charles P. Gorst-Allman, Pieter S. Steyn

Journal:

Tetrahedron Letters

Year:

1982

Language:

english

File:

PDF, 154 KB

english, 1982

18

Tautomerism in tetramic acids: 13C nmr determination of the structures and ratios of the tautomers in 3-acetyl-5-isopropylpyrrolidine-2,4-dione

Pieter S. Steyn, Philippus L. Wessels

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 215 KB

english, 1978

19

Selective toxicity of ochratoxin A in primary cultures from different brain regions

Abdelhak Belmadani, Pieter S. Steyn, Gerard Tramu, Anne-Marie Betbeder, Isabelle Baudrimont, Edmond E. Creppy

Journal:

Archives of Toxicology

Year:

1999

Language:

english

File:

PDF, 207 KB

english, 1999

20

Prevention by vitamin E of DNA fragmentation and apoptosis induced by fumonisin B1 in C6 glioma cells

Théophile A. Mobio, Isabelle Baudrimont, Ambaliou Sanni, Thomas W. Shier, Dominique Saboureau, Sébastien D. Dano, Yoshio Ueno, Pieter S. Steyn, Edmond E. Creppy

Journal:

Archives of Toxicology

Year:

2000

Language:

english

File:

PDF, 702 KB

english, 2000

21

Toxicokinetics of ochratoxin A in vervet monkeys (Cercopithecus aethiops)

Maria A. Stander, Thalma W. Nieuwoudt, Pieter S. Steyn, Gordon S. Shephard, Edmond E. Creppy, Vikash Sewram

Journal:

Archives of Toxicology

Year:

2001

Language:

english

File:

PDF, 151 KB

english, 2001

22

Screening methods for the detection of thirteen common mycotoxins

Charles P. Gorst-Allman, Pieter S. Steyn

Journal:

Journal of Chromatography A

Year:

1979

Language:

english

File:

PDF, 525 KB

english, 1979

23

Separation of the mycotoxins α- and β-cyclopiazonic acids using DEAE-cellulose

Charles P. Gorst-Allman, Pieter S. Steyn

Journal:

Journal of Chromatography A

Year:

1983

Language:

english

File:

PDF, 115 KB

english, 1983

24

Trichothecene mycotoxins from Fusarium sulphureum

Pieter S. Steyn, Robert Vleggaar, Christiaan J. Rabie, Nicolaas P.J. Kriek, Jack S. Harington

Journal:

Year:

1978

Language:

english

File:

PDF, 300 KB

english, 1978

25

Characterization of magnesium and calcium tenuazonate from Phoma sorghina

Pieter S. Steyn, Christiaan J. Rabie

Journal:

Year:

1976

Language:

english

File:

PDF, 311 KB

english, 1976

26

Quantum-chemical studies of aflatoxin B1, sterigmatocystin and versicolorin A, and a comparison with their mutagenic activity

Ruth Pachter, Pieter S. Steyn

Journal:

Mutation Research Letters

Year:

1985

Language:

english

File:

PDF, 289 KB

english, 1985

27

Change in knowledge in a coronary heart disease risk factor intervention study in three communities

Marietjie L. Langenhoven, Jacques E. Rossouw, Pieter L. Jooste, Derek O. Chalton, Anne S.P. Swanepoel, Lesley J. Rossouw, Peet C.J. Jordaan, Mariana Steyn

Journal:

Social Science & Medicine

Year:

1991

Language:

english

File:

PDF, 577 KB

english, 1991

28

Isolation and Identification of Sulphite- and Iron Reducing, Hydrogenase Positive Facultative Anaerobes from Cooling Water Systems

Elise S. McLeod, Zorina Dawood, Raynard MacDonald, Marinda C. Oosthuizen, Joerg Graf, Pieter L. Steyn, Volker S. Brözel

Journal:

Systematic and Applied Microbiology

Year:

1998

Language:

english

File:

PDF, 1.08 MB

english, 1998

29

Changes in the glycoprotein composition of plasma membrane during the differentiation of friend erythroleukemia cells

Gieljan J.C.G.M. Bosman, Pieter Boer, Elizabeth P. Steyn-Parvé

Journal:

Biochimica et Biophysica Acta (BBA) - Biomembranes

Year:

1982

Language:

english

File:

PDF, 496 KB

english, 1982

30

Biosynthesis of acid phosphatase of baker's yeast. Factors influencing its production by protoplasts and characterization of the secreted enzyme

Herman J.M Van Rijn, Pieter Boer, Elizabeth P Steyn-Parvé

Journal:

Biochimica et Biophysica Acta (BBA) - Enzymology

Year:

1972

Language:

english

File:

PDF, 595 KB

english, 1972

31

Biosynthesis of acid phosphatase of baker's yeast: Characterization of a protoplast-bound fraction containing precursors of the exo-enzyme

Pieter Boer, Herman J.M. Van Rijn, Arnold Reinking, Elizabeth P. Steyn-Parvé

Journal:

Biochimica et Biophysica Acta (BBA) - Enzymology

Year:

1975

Language:

english

File:

PDF, 744 KB

english, 1975

32

The inhibitory effect of some lectins on the differentiation of Friend erythroleukemia cells

Gieljan J.C.G.M. Bosman, Pieter Boer, Elizabeth P. Steyn-Parvé

Journal:

Biochemical and Biophysical Research Communications

Year:

1983

Language:

english

File:

PDF, 295 KB

english, 1983

33

Urinary excretion of the mycotoxin, sterigmatocystin by vervet monkeys

Pieter G. Thiel, Martin Steyn

Journal:

Biochemical Pharmacology

Year:

1973

Language:

english

File:

PDF, 528 KB

english, 1973

34

Biliary excretion of sterigmatocystin by vervet monkeys

Martin Steyn, Pieter G. Thiel

Journal:

Biochemical Pharmacology

Year:

1976

Language:

english

File:

PDF, 221 KB

english, 1976

35

The effect of bacitracin on the formation of polyprenol derivatives in yeast membrane vesicles

Frans Reuvers, Pieter Boer, Elizabeth P. Steyn-Parvé

Journal:

Biochemical and Biophysical Research Communications

Year:

1978

Language:

english

File:

PDF, 304 KB

english, 1978

36

Mycotoxins, general view, chemistry and structure

Pieter S. Steyn

Journal:

Toxicology Letters

Year:

1995

Language:

english

File:

PDF, 887 KB

english, 1995

37

In vitro inhibition of yeast valyl-tRNA synthetase by the valine homologue of ochratoxin A

Edmond E. Creppy, Maryvonne Mayer, Daniel Kern, Monique Schlegel, Pieter S. Steyn, Robert Vleggaar, Guy Dirheimer

Journal:

Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis

Year:

1981

Language:

english

File:

PDF, 275 KB

english, 1981

38

Inhibitors of protein glycosylation inhibit the differentiation of Friend erythroleukemia cells

Gieljan J.C.G.M. Bosman, Pieter Boer, Elizabeth P. Steyn-Parvé

Journal:

Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression

Year:

1982

Language:

english

File:

PDF, 377 KB

english, 1982

39

Nitrogen isotope fractionation in soils and microbial reactions

Delwiche, Constant C., Steyn, Pieter L.

Journal:

Environmental Science & Technology

Year:

1970

Language:

english

File:

PDF, 786 KB

english, 1970

40

Moniliformin, a mycotoxin from Fusarium fusarioides

Rabie, Christiaan J., Lubben, Annelie, Louw, Abraham I., Rathbone, Elner B., Steyn, Pieter S., Vleggaar, Robert

Journal:

Journal of Agricultural and Food Chemistry

Year:

1978

Language:

english

File:

PDF, 628 KB

english, 1978

41

Screening of Commercial Hydrolases for the Degradation of Ochratoxin A

Stander, Maria A., Bornscheuer, Uwe T., Henke, Erik, Steyn, Pieter S.

Journal:

Journal of Agricultural and Food Chemistry

Year:

2000

Language:

english

File:

PDF, 189 KB

english, 2000

42

The Biosynthesis of Mycotoxins || The Biosynthesis of Aflatoxin and Its Congeners

STEYN, PIETER S.

Year:

1980

Language:

english

File:

PDF, 2.27 MB

english, 1980

43

Structure and carbon-13 nuclear magnetic resonance assignments of versiconal acetate, versiconol acetate, and versiconol, metabolites from cultures of Aspergillus parasiticus treated with dichlorvos

Steyn, Pieter S., Vleggaar, Robert, Wessels, Philippus L., Cole, Richard J., Scott, De Buys

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1979

Language:

english

File:

PDF, 1.09 MB

english, 1979

44

Crystal structures and conformational analysis of ochratoxin A and B: probing the chemical structure causing toxicity

Bredenkamp, Martin W., Dillen, Jan L. M., van Rooyen, Petrus H., Steyn, Pieter S.

Journal:

Journal of the Chemical Society Perkin Transactions 2

Year:

1989

Language:

english

File:

PDF, 581 KB

english, 1989

45

Roquefortine, an intermediate in the biosynthesis of oxaline in cultures of Penicillium oxalicum

Steyn, Pieter S., Vleggaar, Robert

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1983

Language:

english

File:

PDF, 222 KB

english, 1983

46

A lowered salt intake does not compromise iodine status in Cape Town, South Africa, where salt iodization is mandatory

Charlton, Karen E., Jooste, Pieter L., Steyn, Krisela, Levitt, Naomi S., Ghosh, Abhijeet

Journal:

Year:

2013

Language:

english

File:

PDF, 143 KB

english, 2013

47

Bufadienolide glycosides of the Crassulaceae. Structure and stereochemistry of orbicusides A?C, novel toxic metabolites of Cotyledon orbiculata

Steyn, Pieter S., van Heerden, Fanie R., Vleggaar, Robert, Anderson, Lourens A. P.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1986

Language:

english

File:

PDF, 439 KB

english, 1986

48

Lung Cancer, Tobacco, and Environmental Factors in the African Population of the Northern Province, South Africa

Olga Mzileni, Freddy Sitas, Krisela Steyn, Henri Carrara and Pieter Bekker

Journal:

Tobacco Control

Year:

1999

Language:

english

File:

PDF, 947 KB

english, 1999

49

Cyclopiamines A and B, novel oxindole metabolites of Penicillium cyclopium westling

Bond, Roy F., Boeyens, Jan C. A., Holzapfel, Cedric W., Steyn, Pieter S.

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1979

Language:

english

File:

PDF, 1.44 MB

english, 1979

50

Influence of Halogen Salts on the Production of the Ochratoxins by Aspergillus o chraceus Wilh.

Stander, Maria A., Steyn, Pieter S., Lübben, Annelie, Miljkovic, Ana, Mantle, Peter G., Marais, Gert J.

Journal:

Journal of Agricultural and Food Chemistry

Year:

2000

Language:

english

File:

PDF, 156 KB

english, 2000