Výsledky vyhledávání - "Eric K. W. Tam"

Accuracy and sensitivity of four-dimensional dose calculation to systematic motion variability in stereotatic body radiotherapy (SBRT) for lung cancer

Autor: Anthony S. M. Tong, Dora L.W. Kwong, Mark K. H. Chan, Sherry C.Y. Ng, Eric K. W. Tam

Publikováno v: Journal of Applied Clinical Medical Physics

The dynamic movement of radiation beam in real‐time tumor tracking may cause overdosing to critical organs surrounding the target. The primary objective of this study was to verify the accuracy of the 4D planning module incorporated in CyberKnife t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4051473ffa21cb4572587a6bf5e8325a
https://doi.org/10.1120/jacmp.v13i6.3992

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Enantiospecific Syntheses of (+)-Crotepoxide, (+)-Boesenoxide, (+)-β-Senepoxide, (+)-Pipoxide Acetate, (−)-iso-Crotepoxide, (−)-Senepoxide, and (−)-Tingtanoxide from (−)-Quinic Acid1

Autor: Tony K. M. Shing, Eric K. W. Tam

Publikováno v: The Journal of Organic Chemistry. 63:1547-1554

A convenient strategy that is ideally suited for the construction of all the naturally occurring cyclohexane diepoxides and cyclohexene epoxides is described. The key intermediate 12, a 1,3-cyclohexadiene, has been prepared from (−)-quinic acid in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5964e767d5eafcfcffc7bcd9a5cb8b57
https://doi.org/10.1021/jo970907o

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Experimental evaluations of the accuracy of 3D and 4D planning in robotic tracking stereotactic body radiotherapy for lung cancers

Autor: Mark K H, Chan, Dora L W, Kwong, Sherry C Y, Ng, Anthony S M, Tong, Eric K W, Tam

Publikováno v: Medical physics. 40(4)

Due to the complexity of 4D target tracking radiotherapy, the accuracy of this treatment strategy should be experimentally validated against established standard 3D technique. This work compared the accuracy of 3D and 4D dose calculations in respirat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::6009f369ce7c48a7350f0ad7b9021cd6
https://pubmed.ncbi.nlm.nih.gov/23556882

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First enantiospecific syntheses of crotepoxide and iso-crotepoxide from (−)-quinic acid

Autor: Tony K. M. Shing, Eric K. W. Tam

Publikováno v: Tetrahedron: Asymmetry. 7:353-356

The optically active crotepoxide 1 and iso -crotepoxide 2 have been constructed from quinic acid involving a singlet oxygen photooxygentation as the key step.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3798c99e1c074ca250f8e04437806b1
https://doi.org/10.1016/0957-4166(96)00004-3

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ChemInform Abstract: First Enantiospecific Syntheses of Crotepoxide and iso-Crotepoxide from (-)-Quinic Acid

Autor: Tony K. M. Shing, Eric K. W. Tam

Publikováno v: ChemInform. 27

The optically active crotepoxide 1 and iso -crotepoxide 2 have been constructed from quinic acid involving a singlet oxygen photooxygentation as the key step.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a94ec4bcd3e6c0f47cf9be1ad9a530c
https://doi.org/10.1002/chin.199627224

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ChemInform Abstract: Solvent Effect on Ruthenium Catalyzed Dihydroxylation

Autor: Eric K. W. Tam, Tony K. M. Shing

Publikováno v: ChemInform. 30

The effect of different solvents on flash dihydroxylation is compared and for the first time, the replacement of ethyl acetate with acetone was shown to give a successful, catalytic cis-dihydroxylation of the alkene moiety in cholesteryl acetate and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fb8e0073e914045ff3d55c8fc5f9e327
https://doi.org/10.1002/chin.199925060

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Experimental evaluations of the accuracy of 3D and 4D planning in robotic tracking stereotactic body radiotherapy for lung cancers

Autor: Sherry C.Y. Ng, Mark K.H. Chan, Anthony S. M. Tong, Eric K. W. Tam, Dora L.W. Kwong

Publikováno v: Medical Physics. 40:041712

Purpose: Due to the complexity of 4D target tracking radiotherapy, the accuracy of this treatment strategy should be experimentally validated against established standard 3D technique. This work compared the accuracy of 3D and 4D dose calculations in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::010f47d7c3dd0713b0aaffd4735178b9
https://doi.org/10.1118/1.4794505

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