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Three 18-Electron Tantalum(I) Compounds, TaCl(CO)(2)(dppe)(2), [TaCl(CO)(2)(dppe)(2)](2x), and TaCl(CO)(4)(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism.

Inorganic chemistry

Koeslag MA, Hunter BK, MacNeil JH, Roszak AW, Baird MC.
PMID: 11666870
Inorg Chem. 1996 Nov 20;35(24):6937-6943. doi: 10.1021/ic960456a.

Reductive carbonylation of TaCl(5) in the presence of 1,2-bis(diphenylphosphino)ethane (dppe) under the appropriate conditions results in the formation of TaCl(CO)(2)(dppe)(2) (1), as the major product, and the possibly cyclic oligomer [TaCl(CO)(2)(dppe)(2)](2)(x)() (2, 2x >/= 4) as a minor product....

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Koeslag MA, Hunter BK, MacNeil JH, et al. Three 18-Electron Tantalum(I) Compounds, TaCl(CO)(2)(dppe)(2), [TaCl(CO)(2)(dppe)(2)](2x), and TaCl(CO)(4)(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism. Inorg Chem. 1996;35(24):6937-6943doi: 10.1021/ic960456a.
Koeslag, M. A., Hunter, B. K., MacNeil, J. H., Roszak, A. W., & Baird, M. C. (1996). Three 18-Electron Tantalum(I) Compounds, TaCl(CO)(2)(dppe)(2), [TaCl(CO)(2)(dppe)(2)](2x), and TaCl(CO)(4)(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism. Inorganic chemistry, 35(24), 6937-6943. https://doi.org/10.1021/ic960456a
Koeslag, Mary Ann D., et al. "Three 18-Electron Tantalum(I) Compounds, TaCl(CO)(2)(dppe)(2), [TaCl(CO)(2)(dppe)(2)](2x), and TaCl(CO)(4)(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism." Inorganic chemistry vol. 35,24 (1996): 6937-6943. doi: https://doi.org/10.1021/ic960456a
Koeslag MA, Hunter BK, MacNeil JH, Roszak AW, Baird MC. Three 18-Electron Tantalum(I) Compounds, TaCl(CO)(2)(dppe)(2), [TaCl(CO)(2)(dppe)(2)](2x), and TaCl(CO)(4)(dppe) (dppe = 1,2-Bis(diphenylphosphino)ethane), Which Exhibit Low Levels of Paramagnetism. Inorg Chem. 1996 Nov 20;35(24):6937-6943. doi: 10.1021/ic960456a. PMID: 11666870.
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The incorrect response in multiple-choice examinations.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

Koeslag JH, Melzer CW.
PMID: 7280918
S Afr Med J. 1981 Oct 10;60(15):591-2.

There are three causes for incorrect responses in multiple-choice question (MCQ) and true-false (T-F) tests: (i) guessing as a result of total ignorance; (ii) guessing as a result of partial knowledge; and (iii) so-called 'anti-knowledge', which we define as...

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Koeslag JH, Melzer CW. The incorrect response in multiple-choice examinations. S Afr Med J. 1981;60(15):591-2
Koeslag, J. H., & Melzer, C. W. (1981). The incorrect response in multiple-choice examinations. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 60(15), 591-2.
Koeslag, J H, and Melzer, C W. "The incorrect response in multiple-choice examinations." South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde vol. 60,15 (1981): 591-2.
Koeslag JH, Melzer CW. The incorrect response in multiple-choice examinations. S Afr Med J. 1981 Oct 10;60(15):591-2. PMID: 7280918.
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A computer simulation of free-range exercise in the laboratory.

Journal of applied physiology (Bethesda, Md. : 1985)

Terblanche E, Wessels JA, Stewart RI, Koeslag JH.
PMID: 10517768
J Appl Physiol (1985). 1999 Oct;87(4):1386-91. doi: 10.1152/jappl.1999.87.4.1386.

We present a technique for simulating dynamic field (free-range) exercise, using a novel computer-controlled cycle ergometer. This modified cycle ergometer takes into account the effect of friction and aerodynamic drag forces on a 70-kg cyclist in a racing position....

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Terblanche E, Wessels JA, Stewart RI, et al. A computer simulation of free-range exercise in the laboratory. J Appl Physiol (1985). 1999;87(4):1386-91doi: 10.1152/jappl.1999.87.4.1386.
Terblanche, E., Wessels, J. A., Stewart, R. I., & Koeslag, J. H. (1999). A computer simulation of free-range exercise in the laboratory. Journal of applied physiology (Bethesda, Md. : 1985), 87(4), 1386-91. https://doi.org/10.1152/jappl.1999.87.4.1386
Terblanche, E, et al. "A computer simulation of free-range exercise in the laboratory." Journal of applied physiology (Bethesda, Md. : 1985) vol. 87,4 (1999): 1386-91. doi: https://doi.org/10.1152/jappl.1999.87.4.1386
Terblanche E, Wessels JA, Stewart RI, Koeslag JH. A computer simulation of free-range exercise in the laboratory. J Appl Physiol (1985). 1999 Oct;87(4):1386-91. doi: 10.1152/jappl.1999.87.4.1386. PMID: 10517768.
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Letter: Misconceptions and miscarriages in multiple-choice questions.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

Melzer CW, Schach SR, Koeslag JH.
PMID: 959922
S Afr Med J. 1976 Jul 10;50(29):1123.

No abstract available.

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Melzer CW, Schach SR, Koeslag JH. Letter: Misconceptions and miscarriages in multiple-choice questions. S Afr Med J. 1976;50(29):1123
Melzer, C. W., Schach, S. R., & Koeslag, J. H. (1976). Letter: Misconceptions and miscarriages in multiple-choice questions. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 50(29), 1123.
Melzer, C W, et al. "Letter: Misconceptions and miscarriages in multiple-choice questions." South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde vol. 50,29 (1976): 1123.
Melzer CW, Schach SR, Koeslag JH. Letter: Misconceptions and miscarriages in multiple-choice questions. S Afr Med J. 1976 Jul 10;50(29):1123. PMID: 959922.
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Penalties in multiple-choice and true-false questions.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

Koeslag JH, Melzer CW, Schach SR.
PMID: 6849146
S Afr Med J. 1983 Jan 01;63(1):20-2.

In multiple-choice and true-false (T-F) questions a student expresses his ignorance by leaving questions unanswered, guessing randomly, answering according to some predetermined formula, or, in T-F tests, by marking all those which are unknown as 'true' or all as...

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Koeslag JH, Melzer CW, Schach SR. Penalties in multiple-choice and true-false questions. S Afr Med J. 1983;63(1):20-2
Koeslag, J. H., Melzer, C. W., & Schach, S. R. (1983). Penalties in multiple-choice and true-false questions. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 63(1), 20-2.
Koeslag, J H, et al. "Penalties in multiple-choice and true-false questions." South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde vol. 63,1 (1983): 20-2.
Koeslag JH, Melzer CW, Schach SR. Penalties in multiple-choice and true-false questions. S Afr Med J. 1983 Jan 01;63(1):20-2. PMID: 6849146.
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Multiple-choice and true-false questions--a test of ignorance?.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

Koeslag JH.
PMID: 7079869
S Afr Med J. 1982 May 08;61(19):687.

No abstract available.

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Koeslag JH. Multiple-choice and true-false questions--a test of ignorance?. S Afr Med J. 1982;61(19):687
Koeslag, J. H. (1982). Multiple-choice and true-false questions--a test of ignorance?. South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde, 61(19), 687.
Koeslag, J H. "Multiple-choice and true-false questions--a test of ignorance?." South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde vol. 61,19 (1982): 687.
Koeslag JH. Multiple-choice and true-false questions--a test of ignorance?. S Afr Med J. 1982 May 08;61(19):687. PMID: 7079869.
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MUTATIONS DO NOT ACCUMULATE IN ASEXUAL ISOLATES CAPABLE OF GROWTH AND EXTINCTION-MULLER'S RATCHET RE-EXAMINED.

Evolution; international journal of organic evolution

Melzer AL, Koeslag JH.
PMID: 28568836
Evolution. 1991 May;45(3):649-655. doi: 10.1111/j.1558-5646.1991.tb04335.x.

The rarity of exclusively asexual species is often attributed to Muller's Ratchet. This supposes that because asexual populations cannot recreate individuals with fewer mutations than the currently least-loaded line, mutations will accumulate in such isolates. However, because the computer...

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Melzer AL, Koeslag JH. MUTATIONS DO NOT ACCUMULATE IN ASEXUAL ISOLATES CAPABLE OF GROWTH AND EXTINCTION-MULLER'S RATCHET RE-EXAMINED. Evolution. 1991;45(3):649-655doi: 10.1111/j.1558-5646.1991.tb04335.x.
Melzer, A. L., & Koeslag, J. H. (1991). MUTATIONS DO NOT ACCUMULATE IN ASEXUAL ISOLATES CAPABLE OF GROWTH AND EXTINCTION-MULLER'S RATCHET RE-EXAMINED. Evolution; international journal of organic evolution, 45(3), 649-655. https://doi.org/10.1111/j.1558-5646.1991.tb04335.x
Melzer, A L, and Koeslag, J H. "MUTATIONS DO NOT ACCUMULATE IN ASEXUAL ISOLATES CAPABLE OF GROWTH AND EXTINCTION-MULLER'S RATCHET RE-EXAMINED." Evolution; international journal of organic evolution vol. 45,3 (1991): 649-655. doi: https://doi.org/10.1111/j.1558-5646.1991.tb04335.x
Melzer AL, Koeslag JH. MUTATIONS DO NOT ACCUMULATE IN ASEXUAL ISOLATES CAPABLE OF GROWTH AND EXTINCTION-MULLER'S RATCHET RE-EXAMINED. Evolution. 1991 May;45(3):649-655. doi: 10.1111/j.1558-5646.1991.tb04335.x. PMID: 28568836.
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