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Articles 1 - 13 of 13

Full-Text Articles in Physical Sciences and Mathematics

Controlling The Inhibition Of The Sarcoplasmic Ca2+-Atpase By Tuning Phospholamban Structural Dynamics, Kim Ha, Nathaniel J. Traaseth, Raffaello Verardi, Jamillah Zamoon, Alessandro Cembran, Christine B. Karim, Gianluigi Veglia Dec 2007

Controlling The Inhibition Of The Sarcoplasmic Ca2+-Atpase By Tuning Phospholamban Structural Dynamics, Kim Ha, Nathaniel J. Traaseth, Raffaello Verardi, Jamillah Zamoon, Alessandro Cembran, Christine B. Karim, Gianluigi Veglia

Kim N. Ha, Ph.D.

No abstract provided.


Functional Mechanisms Of Motor Skill Acquisition, Ashvin Shah, Andrew G. Barto Jul 2007

Functional Mechanisms Of Motor Skill Acquisition, Ashvin Shah, Andrew G. Barto

Andrew G. Barto

No abstract provided.


High-Loading Nanosized Micelles Of Copoly(Styrene-Maleic Acid)-Zinc Protoporphyrin For Targeted Delivery Of A Potent Heme Oxygenase Inhibitor., Arun Iyer Mar 2007

High-Loading Nanosized Micelles Of Copoly(Styrene-Maleic Acid)-Zinc Protoporphyrin For Targeted Delivery Of A Potent Heme Oxygenase Inhibitor., Arun Iyer

Arun Iyer

Amphiphilic styrene-maleic acid (SMA) copolymer efficiently formed micelles with a potent heme oxygenase inhibitor-zinc protoporphyrin (ZnPP). The micelles were constructed by subtle pH adjustments to form non-covalent interaction between the hydrophobic ZnPP and amphiphilic SMA. The micelles (SMA-ZnPP) thus formed were nanoparticles with narrow size distribution in water (mean diameter 176.5nm), having tunable loading (from 15% to 60% w/w of ZnPP) with remarkable aqueous solubility. SMA-ZnPP had an average molecular size of 144kDa as determined by size-exclusion chromatography (SEC), this size is a marked increase from the molecular weight of free ZnPP (626.03Da), suggesting the formation of micellar structure. The …


Tuning Nonlinear Optical Properties, T. Christopher Corkery, Marie P. Cifuentes, Marek Samok, Mark G. Humphrey Jan 2007

Tuning Nonlinear Optical Properties, T. Christopher Corkery, Marie P. Cifuentes, Marek Samok, Mark G. Humphrey

Chris Corkery

No abstract provided.


Thermochemistry Of 2- And 3-Acetylthiophenes: Calorimetric And Computational Study., María Victoria Roux, Manuel Temprado, And Pilar Jiménez, Rafael Notario, James S. Chickos, Ana Filipa L. O. M. Santos And, Manuel A. V. Ribeiro Da Silva Jan 2007

Thermochemistry Of 2- And 3-Acetylthiophenes: Calorimetric And Computational Study., María Victoria Roux, Manuel Temprado, And Pilar Jiménez, Rafael Notario, James S. Chickos, Ana Filipa L. O. M. Santos And, Manuel A. V. Ribeiro Da Silva

James Chickos

No abstract provided.


Calorimetric And Computational Study Of Indanones, M. Agostinha R. Matos, Margarida S. Miranda, Manuel J. S. Monte, Luis M. N. B. F. Santos, Victor M. F. Morais, James S. Chickos, Patamaporn Umnahanant, Joel F. Liebman Jan 2007

Calorimetric And Computational Study Of Indanones, M. Agostinha R. Matos, Margarida S. Miranda, Manuel J. S. Monte, Luis M. N. B. F. Santos, Victor M. F. Morais, James S. Chickos, Patamaporn Umnahanant, Joel F. Liebman

James Chickos

No abstract provided.


Experimental And Computational Thermochemical Study Of 2-And 3-Thiopheneacetic Acid Methyl Esters, Manuel Temprado, Rafael Notario, James S. Chickos, Ana Filipa, L. O. M. Santos, Manuel A. V. Ribeiro Da Silva Jan 2007

Experimental And Computational Thermochemical Study Of 2-And 3-Thiopheneacetic Acid Methyl Esters, Manuel Temprado, Rafael Notario, James S. Chickos, Ana Filipa, L. O. M. Santos, Manuel A. V. Ribeiro Da Silva

James Chickos

No abstract provided.


Iron(Iii) P-Toluenesulfonate Catalyzed Synthesis Of Homoallyl Ethers From Acetals And Aldehydes, Ram S. Mohan, Matthew J. Spafford, Erin D. Anderson, Joshua R. Lacey, Ann C. Palma Dec 2006

Iron(Iii) P-Toluenesulfonate Catalyzed Synthesis Of Homoallyl Ethers From Acetals And Aldehydes, Ram S. Mohan, Matthew J. Spafford, Erin D. Anderson, Joshua R. Lacey, Ann C. Palma

Ram S. Mohan

Iron(III) p-toluenesulfonate, Fe(OTs)3.6H20, is an inexpensive, versatile and commercially available catalyst for the allylation of acetals using allyltrimethylsilane to yield homoallyl ethers in moderate to good yields. The one-pot conversion of aldehydes to homoallyl ethers using alkoxysilanes has also been accomplished using Fe(OTs)3.6H20 as a catalyst. The use of mild reaction conditions and a relatively non-corrosive catalyst make this method an attractive option for the synthesis of a range of homoallyl ethers.


Reactivity Of Ionic Liquids, Ram S. Mohan, Shahana Chowdhury, Janet L. Scott Dec 2006

Reactivity Of Ionic Liquids, Ram S. Mohan, Shahana Chowdhury, Janet L. Scott

Ram S. Mohan

Ionic liquids are becoming widely used in synthetic organic chemistry and yet relatively little attention has been paid to the intrinsic reactivity of these low temperature molten salts. Clues to the non-innocent nature of many ionic liquids are contained in the reports of altered reactivity of dissolved substrates, unexpected catalytic activity and unforeseen by-product formation. In this review, we focus on the reactivity of ionic liquids, as opposed to reactivity in ionic liquids (although discussion of the latter is often included where it aids understanding of the former).


An Empirical Study Of The Sources Affecting E-Business Value Creation In Jordanian Banking Services Sector, Philadelphia University Dec 2006

An Empirical Study Of The Sources Affecting E-Business Value Creation In Jordanian Banking Services Sector, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Determination Of Labetalol Hydrochloride In Drug Formulations By Spectrophotometry, Habibur Rahman Dr. Dec 2006

Determination Of Labetalol Hydrochloride In Drug Formulations By Spectrophotometry, Habibur Rahman Dr.

Habibur Rahman

No abstract provided.


Synthesis, Physico-Chemical And Spectroscopic Investigations Of Sodium Dihydrobis(1,2,3-Benzotriazolyl)Borate Ligand And Its Transition Metal Complexes, Mohammad Mansoob Khan Dr, M. M. Rahman, Y. B. Hahn Dec 2006

Synthesis, Physico-Chemical And Spectroscopic Investigations Of Sodium Dihydrobis(1,2,3-Benzotriazolyl)Borate Ligand And Its Transition Metal Complexes, Mohammad Mansoob Khan Dr, M. M. Rahman, Y. B. Hahn

Dr. Mohammad Mansoob Khan

The title ligand, sodium dihydrobis(1,2,3-benzotriazolyl) borate, Na[H2B(BTz)2],was synthesized by refluxing 1 mole of sodium borohydride with 2 moles of 1,2,3- benzotriazole in toluene. The ligand shows ample reactivity towards Cr(III), Mn(II), Fe(III), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) and Hg(II) metal ions and forms stable complexes. The ligand and its metal complexes were characterized by physico-hemical and spectroscopic techniques. All the complexes of divalent metal ions are tetrahedral except for Cu(II), which has been proposed to have a square-planar geometry. The complexes of Cr(III) and Fe(III) appear to have an octahedralge ometry. The magnitude of molar conductance of 10−3 M …


The Translation Of Some Metaphorical Expressions In Shakespeare's Hamlet, Philadelphia University Dec 2006

The Translation Of Some Metaphorical Expressions In Shakespeare's Hamlet, Philadelphia University

Philadelphia University, Jordan

No abstract provided.