Results 241 to 250 of about 210,494 (295)

STRUCTURED GROUPS AND LINK-HOMOTOPY

Journal of Knot Theory and Its Ramifications, 1993
We study link-homotopy classes of links in the three sphere using reduced groups endowed with peripheral structures derived from meridian-longitude pairs. Two types of peripheral structures are considered — Milnor’s original version (called “pre-peripheral structures” in Levine’s terminology) and Levine’s refinement (called simply “peripheral ...
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Synthesis, Structures, and Properties of 1,2,4,5-Benzenetetrathiolate Linked Group 10 Metal Complexes

Inorganic Chemistry, 2009
Dimetallic compounds [(P-P)M(S(2)C(6)H(2)S(2))M(P-P)] (M = Ni, Pd; P-P = chelating bis(phosphine), 3a-3f) are prepared from O=CS(2)C(6)H(2)S(2)C=O or (n)Bu(2)SnS(2)C(6)H(2)S(2)Sn(n)Bu(2), which are protected forms of 1,2,4,5-benzenetetrathiolate. Selective monodeprotections of O=CS(2)C(6)H(2)S(2)C=O or (n)Bu(2)SnS(2)C(6)H(2)S(2)Sn(n)Bu(2) lead to [(P-P)
Kuppuswamy, Arumugam, Mohamed C, Shaw, P, Chandrasekaran, Dino, Villagrán, Thomas G, Gray, Joel T, Mague, James P, Donahue   +6 more
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Synthesis and structural studies of branched 2-linked trisaccharides related to blood group determinants

Carbohydrate Research, 1996
A series of trisaccharide glycosides, Fuc-(1 reversible 2)-beta-Gal-(1 reversible 3)-beta-X-OMe (X = GlcNAc, Glc, 2-deoxy-Glc) related to the blood group determinant Le(d) have been synthesised both as their alpha- and beta-Fuc anomers together with the component disaccharide starting compounds.
J O, Duus, N, Nifant'ev, A S, Shashkov, E A, Khatuntseva, K, Bock   +4 more
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New Porphyrins Bearing Pyridyl Peripheral Groups Linked by Secondary or Tertiary Sulfonamide Groups: Synthesis and Structural Characterization

Inorganic Chemistry, 2009
New pyridyl meso-tetraarylporphyrins (TArP, Ar = -C(6)H(4)-) of the general formula, T(R(1)R(2)NSO(2)Ar)P (R(1) = N-py-n-CH(2) (n = 2 or 4) and R(2) = CH(3)), have been synthesized by the versatile approach of utilizing meso-tetra(4-chlorosulfonylphenyl)porphyrin.
Janet, Manono, Patricia A, Marzilli, Frank R, Fronczek, Luigi G, Marzilli   +3 more
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Linking structure, process, and outcome to improve group home services for foster youth in California

Evaluation and Program Planning, 2007
The California Youth Connection obtained funding from two foundations to evaluate the performance of group homes serving foster youth in Alameda County, California, in order to inform state policy-making. The evaluation team initially included 14 foster youth that personally experienced group home living.
Rex S, Green, Peter T, Ellis
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Optical properties and electronic structure of terminal group-perturbed ethynyl-linked dendrimers

Synthetic Metals, 2011
Abstract Three ethynyl-linked dendrimers with terminal carbazole, namely the electronic donor–acceptor compounds 1–3 , the symmetric compound 9-(3-(2-(1-(2-(3-(9Hcarbazol-9-yl)-9-p-tolyl-9H-carbazol-6-yl)ethynyl)pyren-6-yl)ethynyl)-9-p-tolyl-9H-carbazol-6-yl)-9H-carbazole ( 1 ), the unsymmetric compounds 6-pyren-1-ylethynyl-9- p -tolyl-9 H -[3,9 ...
Peng Zhang, Wenting Xue, Pei Liu, Lihua Gan   +3 more
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Synthesis and structure–activity relationship of histone deacetylase (HDAC) inhibitors with triazole-linked cap group

Bioorganic & Medicinal Chemistry, 2008
Histone deacetylase (HDAC) inhibition is a recent, clinically validated therapeutic strategy for cancer treatment. Small molecule HDAC inhibitors identified so far fall in to three distinct structural motifs: the zinc-binding group (ZBG), a hydrophobic linker, and a recognition cap group.
Po C, Chen, Vishal, Patil, William, Guerrant, Patience, Green, Adegboyega K, Oyelere   +4 more
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Cyclen-based double-tailed lipids for DNA delivery: Synthesis and the effect of linking group structures

Bioorganic & Medicinal Chemistry, 2015
The gene transfection efficiency (TE) of cationic lipids is largely influenced by the lipid structure. Six novel 1, 4, 7, 10-tetraazacyclododecane (cyclen)-based cationic lipids L1-L6, which contain double oleyl as hydrophobic tails, were designed and synthesized. The difference between these lipids is their diverse backbone.
Yi-Mei, Zhang, De-Chun, Chang, Ji, Zhang, Yan-Hong, Liu, Xiao-Qi, Yu   +4 more
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‘To Link or not to Link?’ The Problem of the Multinational Enterprise Group Business Structure

2009
AbstractAlthough enterprise groups are usually comprised of a bundle of separate legal entities, the traditional company law concepts of separate personality and limited liability might not match the economic reality of how groups operate. The question is therefore whether in dealing with group issues entity separateness should be kept for all purposes
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Synthesis, structure, and reactivity of Group 4 metallacycles incorporating a Me2C-linked cyclopentadienyl-carboranyl ligand

Dalton Transactions, 2008
Group 4 metallacycles [eta5:sigma-Me2C(C5H4)(C2B10H10)]Ti[eta2-N(Me)CH2CH2N(Me)] (1a), [eta5:sigma-Me2C(C5H4)(C2B10H10)]Zr[eta2-N(Me)CH2CH2N(Me)](HNMe2) (1b) and [eta5:sigma-Me2C(C5H4)(C2B10H10)]M[eta2-N(Me)CH2CH2CH2N(Me)] (M = Ti (2a), Zr (2b), Hf (2c)) were synthesized by reaction of [eta5:sigma-Me2C(C5H4)(C2B10H10)]M(NMe2)(2) (M = Ti, Zr, Hf) with ...
Mei-Mei, Sit, Hoi-Shan, Chan, Zuowei, Xie   +2 more
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