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Now showing items 34-53 of 244

Band propagation, scaling laws and phase transition in a precipitate system. i: Experimental study

Al-Ghoul M.; Ammar M.; Al-Kaysi R.O. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2012)

In the first part of this work, we present an experimental study of the precipitation-redissolution reaction-diffusion system of initially separated components in two distinct organic gels: agar and gelatin. The system is ...
Band, target, and onion patterns in Co(OH)2 Liesegang systems

Badr L.; Moussa Z.; Hariri A.; Sultan R. (COLLEGE PKONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA, 2011)

The study of morphology and shape development has gained considerable interest in certain sciences, notably biology and geology. Liesegang experiments producing Co(OH)2 stratification are performed here, in one, two, and ...
Bioactivity of origanum syriacum essential oil against candida albicans

Kassaify Z.; Gerges D.D.; Jaber L.S.; Hamadeh S.K.; Aoun Saliba N.; Talhouk S.N.; Barbour E.K. (, 2008)

The susceptibility of 14 human isolates of Candida albicans to commercially available vaginal douche materials and to the essential oil of Origanum syriacum was investigated in hamsters. The essential oil of O. syriacum ...
Bis(carbazolyl) derivatives of pyrene and tetrahydropyrene: Synthesis, structures, optical properties, electrochemistry, and electroluminescence

Kaafarani B.R.; El-Ballouli A.O.; Trattnig R.; Fonari A.; Sax S.; Wex B.; Risko C.; Khnayzer R.S.; Barlow S.; Patra D.; Timofeeva T.V.; List E.J.W.; Bredas J.-L.; Marder S.R. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2013)

Tetrahydropyrene and pyrene have been functionalized in their 2,7-positions with carbazole and 3,6-di-tert-butylcarbazole groups, and the properties of these new compounds are compared to analogous carbazole and 3,6-di-tert- ...
Calculation of dramatic differences in the activation energy of phenyl migratory insertion in the isomers of [Rh(PMe3)2Cl(CO)(Ph) H]: Important effects from both the ligand trans to Ph and the ligand trans to CO

Hasanayn F.; Abu-El-ez D. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2010)

Trans, trans-[RhL2(Ph)(CO)HCl] (2a) and trans, trans-[RhL 2(Ph)Cl(CO)H] (2b) are known to form as major products in the reaction between benzene and a photoexcited state of trans-[RhL 2(CO)Cl] (1; L = PMe3). In the presence ...
Calculations on the kinetics, thermodynamics, and selectivity of methyl radical addition to olefins coordinated to d8 and d0 transition-metal fragments: Two distinct and opposite anti-evans-polanyi effects with potential practical implications

Hasanayn F.; Gozem S. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2008)

DFT calculations predict that methyl radical addition to the propene and isobutene adducts of the [Rh(PCP)] and [(Cp)2Zr(OtBu)] + fragments affords different kinetic and thermodynamic products. The regioselectivity in the ...
Catalytic degradation of chlorothalonil in water using bimetallic iron-based systems.

Ghauch A.; Tuqan A. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2008)

Modified zero valent iron (MZVI) was used to study the transformation of a chlorothalonil (CLT) solution and the variation of the observed degradation rate of the reduction reactions. This was carried out when transition ...
Characterization of internal structure of hydrated agar and gelatin matrices by cryo-SEM

Rahbani J.; Behzad A.R.; Khashab N.M.; Al-Ghoul M. (HOBOKEN111 RIVER ST, HOBOKEN 07030-5774, NJ USA, 2013)

There has been a considerable interest in recent years in developing polymer gel matrices for many important applications such as 2DE for quantization and separation of a variety of proteins and drug delivery system to ...
Charge separation and photocurrent polarity-switching at CdS quantum dots assembly in polyelectrolyte interfaced with hole scavengers

El Harakeh M.; Alawieh L.; Saouma S.; Halaoui L.I. (CAMBRIDGETHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND, 2009)

Significant charge separation and potential-dependent photocurrent polarity switching are reported at multilayers of polyacrylate-capped CdS quantum dots (Q-CdS, 〈d〉 = 3.6 ±0.5 nm) assembled in poly(diallydimethylammonium ...
Chemical profile of the Dittrichia graveolens (Desf.) Greuter essential oil of Lebanese origin

Ghosn M.W.; Chemali C.B.; Zaknoun F.I.; Saliba N.A. (CAROL STREAM362 S SCHMALE RD, CAROL STREAM, IL 60188-2787 USA, 2006)

Essential oils isolated from the aerial parts of two different Lebanese wild populations of Dittrichia graveolens were analyzed by GC and GC-MS. It was shown that around 90percent of the total composition consisted of ...
Chemical Thermodynamics: Reversible and Irreversible Thermodynamics

Al-Ghoul, Mazen; Eu, Byung Chan (World Scientific Publishing, )

This book enables the reader to learn, in a single volume, equilibrium and nonequilibrium thermodynamics, as well as generalized forms of hydrodynamics for linear and nonlinear processes applied to various hydrodynamic ...
Chemical Thermodynamics: With Examples for Nonequilibrium Processes

Al-Ghoul, Mazen; Eu, Byung Chan (World Scientific, )
Claimed 2,1-benzisoxazoles are indazalones

Kurth M.J.; Olmstead M.M.; Haddadin M.J. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2005)

(Chemical Equation Presented) Claims, by two groups, to have prepared 2,1-benzisoxazole derivatives are corrected to show that the products are indazalones (5). In addition, a simple preparation of 3-oxysubstituted ...
Cobalt ferrite aerogels by epoxide sol-gel addition: Efficient catalysts for the hydrolysis of 4-nitrophenyl phosphate

Akl J.; Ghaddar T.; Ghanem A.; El-Rassy H. (AMSTERDAMPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2009)

Porous cobalt ferrite aerogel catalysts were obtained by 1,2-epoxide sol-gel process and investigated in the hydrolysis of 4-nitrophenyl phosphate. These materials were synthesized by reacting cobalt and iron salts with ...
Columnar mesomorphism of fluorescent board-shaped quinoxalinophenanthrophenazine derivatives with donor-acceptor structure

Chen S.; Raad F.S.; Ahmida M.; Kaafarani B.R.; Eichhorn S.H. (WASHINGTON1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2013)

Quinoxalino[2′,3′:9,10]phenanthro[4,5-abc]phenazine (QPP) dyes have been studied as electron acceptor materials, fluorophores, and building blocks for self-organizing organic semiconductors. Condensation of tetraketopyrene ...
Combining time-resolved fluorescence with synchronous fluorescence spectroscopy to study bovine serum albumin-curcumin complex during unfolding and refolding processes

Barakat C.; Patra D. (HOBOKEN111 RIVER ST, HOBOKEN 07030-5774, NJ USA, 2013)

We investigated the complex interaction between bovine serum albumin (BSA) and curcumin by combining time-resolved fluorescence and synchronous fluorescence spectroscopy. The interaction was significant and sensitive to ...
Commentary: Single-molecule fluorescence spectroscopy

Patra D. (BELLINGHAM1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA, 2012)

[No abstract available]
Comparative Antiproliferative activities of wood and seeds essential oils of Juniperus Oxycedrus L. against K562 human chronic myelogenous leukemia cells

Saab A.M.; Gali-Muhtasib H.; Maietti S.; Grandini A.; Rossi D.; Lampronti I.; Gallerani E.; Fabbri E.; Gambari R. (Taylor and Francis Inc.; PHILADELPHIA530 CHESTNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA, 2014)

The species Juniperus oxycedrus L. is a member of Cupressaceae family. The chemical composition and antiproliferative activity of wood and seeds essential oils of J. oxycedrus, grown wild in Lebanon, were evaluated in order ...
Concentration measurements and chemical composition of PM10-2.5 and PM2.5 at a coastal site in Beirut, Lebanon

Shaka' H.; Saliba N.A. (OXFORDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2004)

Emission measurements and chemical profiles of PM10-2.5 (coarse) and PM2.5 (fine) in Lebanon are reported for the months of February till May of 2003. A 4 month average of 76μgm -3 for PM10-2.5 and 40μgm -3 for PM2.5 ...
Conformational analysis of the electron-transfer kinetics across oligoproline peptides using N,N-dimethyl-1,4-benzenediamine donors and pyrene-1-sulfonyl acceptors

Issa J.B.; Salameh A.S.; Castner Jr. E.W.; Wishart J.F.; Isied S.S. (, 2007)

Photoinduced intramolecular charge separation across proline-bridged donor-acceptor complexes of the type Pyr-(Pro)n-DMPD (where Pyr = pyrene-1-sulfonyl and DMPD = N,N-dimethyl-1,4-phenylenediamine) was studied. The ...

Now showing items 34-53 of 244

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Browsing Department of Chemistry - Faculty Publications by Title

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