Symplectic Heegaard splittings and linked abelian groups

Autor: Dennis Lee Johnson, Joan S. Birman, Andrew Putman

Publikováno v: Groups of Diffeomorphisms: In honor of Shigeyuki Morita on the occasion of his 60th birthday, R. Penner, D. Kotschick, T. Tsuboi, N. Kawazumi, T. Kitano and Y. Mitsumatsu, eds. (Tokyo: Mathematical Society of Japan, 2008)

Let $f$ be the gluing map of a Heegaard splitting of a 3-manifold $W$. The goal of this paper is to determine the information about $W$ contained in the image of $f$ under the symplectic representation of the mapping class group. We prove three main

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7abefd29c8cc0fc3f53906a99ff52c2
https://doi.org/10.2969/aspm/05210135

Inversion of the direction of stereoinduction in the coupling of chiral gamma,delta-unsaturated Fischer carbene complexes with o-ethynylbenzaldehyde

Autor: Binay K. Ghorai, and Dennis Lee Johnson, James W. Herndon, Suneetha Menon

Publikováno v: Organic letters. 4(13)

[reaction: see text] A variety of gamma,delta-unsaturated carbene complexes that feature a stereogenic center at the beta-carbon couple with 2-ethynylbenzaldehyde to afford hydrophenanthrene derivatives with a high degree of stereoinduction. The dire

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2905f624cc0f1c8320bb98146ae36b70
https://pubmed.ncbi.nlm.nih.gov/12074647

Synthesis of iron carbonyl trimethylsilanes: preparations and interconversions of cis-(CO)4Fe[Si(CH3)3]2, M+[(CO)4FeSi(CH3)3]-, and trans- [Fe(CO)4Si(CH3)3]2

Autor: Patrick W. Donovan, Andrew J. Blakeney, Dennis Lee Johnson, John A. Gladysz

Publikováno v: Inorganic Chemistry. 20:4415-4419

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62597b7a4e1fe727154eb1b37855428f
https://doi.org/10.1021/ic50226a076

Measurement of adenosine triphosphate and 2,3-diphosphoglycerate in stored blood with 31P nuclear magnetic resonance spectroscopy

Autor: Dennis Lee Johnson, William C. Klingensmith, Bruce L. Hawkins, Edward R.B. McCabe, Daniel R. Ambruso, Alan R. Fritzberg

Publikováno v: Biochemical Medicine and Metabolic Biology. 35:376-383

Conditions for blood storage are chosen to assure adequate levels of adenosine triphosphate (ATP) and 2,3-diphosphoglycerate (2,3-DPG). Because of the invasive nature of the techniques, biochemical assays are not routinely used to measure levels of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16eb923dff1d951f75105db1a1cfc9f1
https://doi.org/10.1016/0885-4505(86)90096-4

Synthesis of metal carbonyl monoanions by trialkylborohydride cleavage of metal carbonyl dimers: a convenient one-flask preparation of metal alkyls, metal acyls, and mixed-metal compounds

Autor: Dennis Lee Johnson, J. C. Selover, G. M. Williams, David W. Parker, John A. Gladysz, Wilson Tam

Publikováno v: Inorganic Chemistry. 18:553-558

Commercially available trialkylborohydrides Li(C2H5),BH, Li(sec-C4H9),BH, and K(sec-C4H9),BH effect the nearquantitative, homogeneous, room-temperature synthesis of transition-metal monoanions [Co(CO),]-, [(C,H,)Mo(CO),]-, [Mn(CO),]-, and [ (C,HS)Fe(

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c5d292144a7fbced65443978cb6cbab7
https://doi.org/10.1021/ic50193a006