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2014

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Corporate Responsibility, Marketing, And Reputation: A Stakeholder Approach For Sustainable Car Fleet Management, Roland Vogt Jan 2014

Corporate Responsibility, Marketing, And Reputation: A Stakeholder Approach For Sustainable Car Fleet Management, Roland Vogt

Plymouth Business School Theses

Corporate responsibility is increasingly involved in corporate reputation, and so, in the economic success of a company. Car fleet operating companies are exposed to criticism and, as a direct result of this many corporate protagonists responsible for the operation of car fleets are developing measures to decrease CO2 emissions and fuel consumption. A second trend is the increasing usage of image-generating marketing actions in the worldwide ‘information society’. For various reasons, these image campaigns do not always lead to the expected improvements in corporate reputation. The crucial question is, how do these marketing actions, in the name of corporate social …


Building Capacity For The Scholarship Of Teaching And Learning (Sotl) Using International Collaborative Writing Groups, Elizabeth Marquis, Mick Healey, Michelle Vine Jan 2014

Building Capacity For The Scholarship Of Teaching And Learning (Sotl) Using International Collaborative Writing Groups, Elizabeth Marquis, Mick Healey, Michelle Vine

International Journal for the Scholarship of Teaching & Learning

Objective: To understand participants’ perceptions of the impact of an innovative International Collaborative Writing Group (ICWG) initiative on their individual and collective SoTL capacity.

Methods: A mixed method research design included participant surveys (phases 1 and 3), and focus groups and interviews (phase 2). Data from all three phases of research have been triangulated in order to facilitate an in-depth understanding of participants' experiences.

Findings: Findings reveal four key themes: mentoring and leadership, the creation of community, diversity of perspectives, and experiential learning and professional skill development.

Discussion and Implications: Through the opportunities presented in relation …


Reproductive Phase Determination In Male Meagre (Argyrosomus Regius, Sciaenidae): Testis Development And Histologic Corroboration Of A Gross Anatomical Scale, Nuno Prista, Leonel Gordo, Jose L. Costa, Maria J. Costa, Cynthia M. Jones Jan 2014

Reproductive Phase Determination In Male Meagre (Argyrosomus Regius, Sciaenidae): Testis Development And Histologic Corroboration Of A Gross Anatomical Scale, Nuno Prista, Leonel Gordo, Jose L. Costa, Maria J. Costa, Cynthia M. Jones

OES Faculty Publications

Reproductive stage determination of male gonads has received sparse attention in fish biology literature with few studies detailing the building of gross anatomical-and histologic scales. The meagre (Argyrosomus regius) is one of the world's largest sciaenids and supports a significant regional fishery in European and North African waters whose reproductive patterns are yet to be fully investigated. In the present study, we derive a macroscopic grading system for meagre testis using semi-quantitative graphs that feature the testis variability along the species size range and time of the year. We then describe the histological stages and reproductive phases of …


The Impact Of Changing Surface Ocean Conditions On The Dissolution Of Aerosol Iron, Matthew P. Fishwick, Peter N. Sedwick, Maeve C. Lohan, Paul J. Worsfold, Kristen N. Buck, Thomas M. Church, Simon J. Ussher Jan 2014

The Impact Of Changing Surface Ocean Conditions On The Dissolution Of Aerosol Iron, Matthew P. Fishwick, Peter N. Sedwick, Maeve C. Lohan, Paul J. Worsfold, Kristen N. Buck, Thomas M. Church, Simon J. Ussher

OES Faculty Publications

The proportion of aerosol iron (Fe) that dissolves in seawater varies greatly and is dependent on aerosol composition and the physicochemical conditions of seawater, which may change depending on location or be altered by global environmental change. Aerosol and surface seawater samples were collected in the Sargasso Sea and used to investigate the impact of these changing conditions on aerosol Fe dissolution in seawater. Our data show that seawater temperature, pH, and oxygen concentration, within the range of current and projected future values, had no significant effect on the dissolution of aerosol Fe. However, the source and composition of aerosols …


Economic Synthesis Of Quinaldinium Fluorochromate(Vi), (Qnfc), And Solvent-Free Periodic Acid Oxidation Of Alcohols Catalyzed By Qnfc, Melek Özdemi̇r, Hati̇ce Beyti̇ye Özgün Jan 2014

Economic Synthesis Of Quinaldinium Fluorochromate(Vi), (Qnfc), And Solvent-Free Periodic Acid Oxidation Of Alcohols Catalyzed By Qnfc, Melek Özdemi̇r, Hati̇ce Beyti̇ye Özgün

Turkish Journal of Chemistry

A 1:1:1 stoichiometric reaction between CrO_3, aqueous HF, and quinaldine affords orange crystalline quinaldinium fluorochromate(VI) (QnFC) (C_{10}H_9NH[CrO_3F]) in 99.4% isolated yield. A highly efficient, simple, chemoselective, and environmentally benign procedure for QnFC (3 mol%) catalyzed oxidation of primary and secondary alcohols to aldehydes and ketones using 1.1 equiv of H_5IO_6 under solvent-free conditions is described.


On The Peculiar Reactivity Of A C,N-Annelated Isoindole Core, Iaroslav Baglai, Valerie Maraval, Zoia Vsevolodivna Voitenko, Carine Duhayon, Yulian Mihailovich Volovenko, Remi Chauvin Jan 2014

On The Peculiar Reactivity Of A C,N-Annelated Isoindole Core, Iaroslav Baglai, Valerie Maraval, Zoia Vsevolodivna Voitenko, Carine Duhayon, Yulian Mihailovich Volovenko, Remi Chauvin

Turkish Journal of Chemistry

C-, N-, and/or O-methylation products were generated from 11H-isoindolo[2,1-a]quinazoline-5-one upon treatment with NaH followed by iodomethane under air, and possible recrystallization from methanol. Two products were fully characterized by NMR and X-ray diffraction analysis. In accordance with the HSAB principle, this soft methylating agent (MeI) leads mainly to the C,C-dimethylated product 11,11-dimethyl-11H-isoindolo[2,1-a]quinazoline-5-one, which was previously not observed, beside the N-methylated product, in a procedure using methyl tosylate as a hard methylating agent of the same substrate in the initial absence of a base. A mechanism is finally proposed for the formation of methyl 2-(3-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)benzoate as an oxidation side product.


Nh-Acidities And Hammett Correlation Of 3-Para Substituted Phenyl-1,2,4-Oxadiazol-5(4h)-Ones And 1,2 \Lambda^43,5-Oxathiadiazole 2-Oxides In Nonaqueous Media, Nedi̇me Dürüst, Yaşar Dürüst, Emi̇ne Özge Gözlükaya Jan 2014

Nh-Acidities And Hammett Correlation Of 3-Para Substituted Phenyl-1,2,4-Oxadiazol-5(4h)-Ones And 1,2 \Lambda^43,5-Oxathiadiazole 2-Oxides In Nonaqueous Media, Nedi̇me Dürüst, Yaşar Dürüst, Emi̇ne Özge Gözlükaya

Turkish Journal of Chemistry

NH acidities of some 3-(p-substitutedphenyl)-1,2,4-oxadiazol-5(4H)-ones and 4-(p-substitutedphenyl)-1,2 \lambda^43,5-oxathiadiazole 2-oxides were determined in methanol by means of potentiometric titration with sodium methoxide. pK_a values of the title compounds calculated from the potentiometric data were interpreted on the basis of structural effects caused by para-substituted groups on the phenyl ring by plotting pK_a values versus Hammett \sigma_p^+ constants, which gave excellent linear correlations.


Experimental Investigation Of Drag Reduction Effects Of Polymer Additives On Turbulent Pipe Flow Using Ultrasound Doppler Velocimetry, Şeri̇fe Zeybek Vural, Göknur Bayram, Yusuf Uludağ Jan 2014

Experimental Investigation Of Drag Reduction Effects Of Polymer Additives On Turbulent Pipe Flow Using Ultrasound Doppler Velocimetry, Şeri̇fe Zeybek Vural, Göknur Bayram, Yusuf Uludağ

Turkish Journal of Chemistry

Drag reduction in fully developed turbulent pipe flow with 4 concentrations (200 to 500 wppm or mg/kg) of low molecular weight sodium carboxymethylcellulose (CMC) in aqueous solutions was investigated experimentally. Drag reduction was determined by pressure drop measurements. Maximum drag reduction achieved was 22% using 500 wppm CMC solution. To observe the impact of the presence of CMC on the flow, ultrasound Doppler velocimetry (UDV) was employed to monitor the instantaneous velocity distributions. Experimental measurements were used to calculate Fanning friction factor and radial distributions of the axial time-averaged velocity, velocity fluctuation (turbulent intensity), and eddy viscosity. Two impacts of …


Synthesis, Spectral, And Thermoanalytical Studies On The New Heterobimetallic [Mg(Ii)-Ti(Iv)]-\Mu-Oxoisopropoxide And Its \Beta-Diketonates, Rajesh Kumar Jan 2014

Synthesis, Spectral, And Thermoanalytical Studies On The New Heterobimetallic [Mg(Ii)-Ti(Iv)]-\Mu-Oxoisopropoxide And Its \Beta-Diketonates, Rajesh Kumar

Turkish Journal of Chemistry

The new heterobimetallic [Mg(II)-Ti(IV)]-\mu-oxoisopropoxide was synthesized on treatment of magnesium acetate with titanium(IV) isopropoxide in refluxing decalin in 1:2 molar ratio and characterized by liberated isopropanol, elemental, spectral (IR, ^1H and ^{13}C NMR, and mass), thermal analysis, and molecular weight data. The reactions of [Mg(II)-Ti(IV)]-\mu-oxoisopropoxide compound with \beta-diketones in different molar ratios (1:1--1:4) yielded mono to tetra derivatives [{MgO_2Ti_2(OPr^i)_{6-n}L_n}] (where n is 1--4 and L = acetylacetonate/benzoylacetonate anion)] of the \mu-oxo complex and were characterized by elemental, liberated isopropanol, and spectral analysis (IR and ^1H and ^{13}C NMR). These studies revealed interesting facets in support of plausible structures of the …


Platinum Or Nickel Nanoparticles Decorated On Silica Spheres By Microwave Irradiation Technique, Ayşe Bayrakçeken Jan 2014

Platinum Or Nickel Nanoparticles Decorated On Silica Spheres By Microwave Irradiation Technique, Ayşe Bayrakçeken

Turkish Journal of Chemistry

Supported catalysts are of great interest because of their wide range of application possibilities. In this study, firstly silica spheres were synthesized and then platinum and nickel nanoparticles were incorporated on this silica by microwave irradiation, which is an efficient technique for catalyst preparation. Synthesized silica spheres and catalysts were characterized by BET, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and transmission electron microscopy techniques. Pt or Ni nanoparticles well dispersed over silica support were obtained using microwave irradiation.


Spectrophotometric Determination Of Molybdenum Using Surfactant-Mediated Liquid--Liquid Extraction, Rameshwar Dass, Jitander Kumar Kapoor, Sunita Gambhir Jan 2014

Spectrophotometric Determination Of Molybdenum Using Surfactant-Mediated Liquid--Liquid Extraction, Rameshwar Dass, Jitander Kumar Kapoor, Sunita Gambhir

Turkish Journal of Chemistry

A new spectrophotometric method has been developed for determination of molybdenum using surfactant-mediated liquid--liquid extraction. Molybdenum(V) obtained by ascorbic acid reduction in 2.5 M H_2SO_4 reacted spontaneously with thiocyanate and cetyl trimethyl ammonium bromide (CTAB), forming an intense orange yellow complex that was extracted quantitatively into 1,2-dichloroethane and absorbed at 460 nm. The absorbance of the extract was found to be stable for more than 24 h. Beer's law was obeyed over the concentration range 0.1--4.2 \mu g Mo mL^{-1} of the extract. The linear range for an accurate determination was found to be 1.2--2.6 \mu g Mo mL^{-1}. The …


Aryl Butenoic Acid Derivatives As A New Class Of Histone Deacetylase Inhibitors: Synthesis, In Vitro Evaluation, And Molecular Docking Studies, Peruze Ayhan Eşi̇yok, Özlem Seven, Gülüzar Eymur, Gamze Bora Tatar, Di̇dem Dayangaç Erden, Kemal Yelekçi̇, Hayat Yurter, Ayhan Sitki Demi̇r Jan 2014

Aryl Butenoic Acid Derivatives As A New Class Of Histone Deacetylase Inhibitors: Synthesis, In Vitro Evaluation, And Molecular Docking Studies, Peruze Ayhan Eşi̇yok, Özlem Seven, Gülüzar Eymur, Gamze Bora Tatar, Di̇dem Dayangaç Erden, Kemal Yelekçi̇, Hayat Yurter, Ayhan Sitki Demi̇r

Turkish Journal of Chemistry

New aryl butenoic acid derivatives have been synthesized by combining hydroxy- or methoxy-substituted phenyl rings as the capping group, with a double bond in the short linker as well as metal binding groups, enoic ester, and salts bearing either methyl or morpholine. These compounds have been shown to possess promising histone deacetylase inhibition activities via in vitro fluorometric assay and molecular docking studies.


Pw_{12}-Aptes@Mcf: Effective Nanosized Mesoporous Composites For The Oxidation Of Benzyl Alcohols, Razieh Fazaeli, Hamid Aliyan, Somaieh Parishani Foroushani, Zahra Mohagheghian Jan 2014

Pw_{12}-Aptes@Mcf: Effective Nanosized Mesoporous Composites For The Oxidation Of Benzyl Alcohols, Razieh Fazaeli, Hamid Aliyan, Somaieh Parishani Foroushani, Zahra Mohagheghian

Turkish Journal of Chemistry

The surface of mesocellular silica foam (MCF) was modified by grafting 3-aminopropyl-triethoxysilane (APTES) to have a positive charge, and thus to provide sites for the immobilization of H_3PW_{12}O_{40} (PW_{12}). This modified nanosized mesoporous silica (PW_{12}-APTES@MCF) was characterized by FTIR, XRD, BET, and TEM. XRD and adsorption--desorption analysis shows that the mesostructure of silica remains intact after various modifications, while the spectral technique shows the successful grafting of the neat PW_{12} inside the porous silica support. The oxidation of alcohols occurs effectively and selectively with H_2O_2 as the oxidant. PW_{12}-APTES@MCF was used as the catalyst. The catalyst can be reused several …


Preparation And Characterization Of Nonmetal Promoter Modified Cuznal Catalysts For Higher Alcohol From Synthesis Gas Through Complete Liquid Phase Method, Shirui Yu, Xiaodong Wang, Wei Huang Jan 2014

Preparation And Characterization Of Nonmetal Promoter Modified Cuznal Catalysts For Higher Alcohol From Synthesis Gas Through Complete Liquid Phase Method, Shirui Yu, Xiaodong Wang, Wei Huang

Turkish Journal of Chemistry

A complete liquid phase technology and a function regulator were applied to prepare CuZnAl catalysts for higher alcohol synthesis. Characterizations showed that the introduction of the function regulator can change the reduction ability of copper oxides and the surface basicity of catalysts. Activity tests indicated that the selectivity of higher alcohol is high when considerable medium-strong basicity and the synergistic effects of copper ion and metal copper exist on the catalytic surface. The optimized modified CuZnAl catalyst without any metal additives provides a CO conversion of 28.9%, C_{2+}OH selectivity of up to 42.8%, and hydrocarbon selectivity of 2.5%, with a …


Spectroscopic Investigation And Oxidation Of The Anticholinergic Drug Atropine Sulfate Monohydrate By Hexacyanoferrate(Iii) In Aqueous Alkaline Media: A Mechanistic Approach, Manjunath Meti, Sharanappa Nandibewoor, Shivamurti Chimatadar Jan 2014

Spectroscopic Investigation And Oxidation Of The Anticholinergic Drug Atropine Sulfate Monohydrate By Hexacyanoferrate(Iii) In Aqueous Alkaline Media: A Mechanistic Approach, Manjunath Meti, Sharanappa Nandibewoor, Shivamurti Chimatadar

Turkish Journal of Chemistry

The oxidation of the anticholinergic drug atropine sulfate monohydrate by hexacyanoferrate(III) in aqueous alkaline media was investigated spectrophotometrically by monitoring the decrease in absorbance of hexacyanoferrate(III) (HCF(III)). Oxidation products were identified. The oxidation mechanism was proposed from kinetic studies. The reaction constants involved in the different steps of the mechanism were calculated. The effects of added products, ionic strength, and dielectric constant of the reaction were investigated. The polymerization test revealed that oxidation occurred with intervention of free radicals. The activation parameters were evaluated.


Selective Oxidation Of Sulfides And Hydrocarbons With H_2o_2 Over Manganese Catalyst Supported On Nanoparticles, Massomeh Ghorbanloo, Roghayeh Tarasi, Jun Tao, Hidenori Yahiro Jan 2014

Selective Oxidation Of Sulfides And Hydrocarbons With H_2o_2 Over Manganese Catalyst Supported On Nanoparticles, Massomeh Ghorbanloo, Roghayeh Tarasi, Jun Tao, Hidenori Yahiro

Turkish Journal of Chemistry

A new magnetically separable catalyst consisting of binuclear Mn(II) complex [Mn_2(HL)_2(H_2O)_4], HL = 2-[(2-hydroxy-benzylidene)-amino]-3-(4-hydroxyphenyl)-propionic acid, supported on (3-chloropropyl)-trimethoxysilane (CPTMS) functionalized silica-coated magnetic nanoparticles (MNPs) was prepared. The synthesized catalyst was characterized by several physico-chemical and spectroscopic methods. This immobilized complex was found to be an efficient heterogeneous catalyst for the oxidation of different sulfides and hydrocarbons using hydrogen peroxide (H_2O_2) as an oxidant. The catalyst is readily recovered by simple magnetic decantation and can be recycled several times with no considerable loss of catalytic activity.


Partial Purification And Biochemical Characterization Of An Extremely Thermo- And Ph-Stable Esterase With Great Substrate Affinity, Esra Özbek, Yakup Kolcuoğlu, Leyla Konak, Ahmet Çolak, Fulya Öz Jan 2014

Partial Purification And Biochemical Characterization Of An Extremely Thermo- And Ph-Stable Esterase With Great Substrate Affinity, Esra Özbek, Yakup Kolcuoğlu, Leyla Konak, Ahmet Çolak, Fulya Öz

Turkish Journal of Chemistry

An esterase from a thermophilic bacterium, Geobacillus sp. DF20, was partially purified. Final purification factor was found to be 64.5-fold using Q-Sepharose ion exchange column chromatography. Native polyacrylamide gel electrophoresis indicated the presence of a single active esterase. The substrate specificity of this esterase was high for p-nitrophenyl butyrate (pNPB) substrate. The optimum pH and temperature for the enzyme activity were 7.0 and 50 ^°C, respectively. The pH and heat stability profiles show that this enzyme is more stable under neutral conditions at 50 ^°C. K_m and V_{max} values for this esterase acting on pNPB were 0.12 mM and 54.6 …


Aqueous Dabco, An Efficient Medium For Rapid Organocatalyzed Knoevenagel Condensation And The Gewald Reaction, Mohammad Saeed Abaee, Somayeh Cheraghi Jan 2014

Aqueous Dabco, An Efficient Medium For Rapid Organocatalyzed Knoevenagel Condensation And The Gewald Reaction, Mohammad Saeed Abaee, Somayeh Cheraghi

Turkish Journal of Chemistry

In the presence of water and 1,4-diazabicyclo[2.2.2]octane, several aldehydes and cyclic ketones underwent efficient Knoevenagel condensation with malononitrile and ethyl cyanoacetate to produce the respective \alpha.\beta-unsaturated systems within fairly short time periods. As a result, high yields of conjugated products were easily obtained. Products could be engaged in a Gewald reaction, either stepwise or in situ, to produce efficiently their respective 2-aminothiophenes within 4--7 h.


Thermal Conversion Of Glycerol To Value-Added Chemicals: Pyridine Derivatives By One-Pot Microwave-Assisted Synthesis, Duygu Bayramoğlu, Gökay Gürel, Ali̇ Sinağ, Mustafa Güllü Jan 2014

Thermal Conversion Of Glycerol To Value-Added Chemicals: Pyridine Derivatives By One-Pot Microwave-Assisted Synthesis, Duygu Bayramoğlu, Gökay Gürel, Ali̇ Sinağ, Mustafa Güllü

Turkish Journal of Chemistry

One-pot syntheses of the value-added heterocyclic compounds 3-methylpyridine and pyridine using a renewable chemical, glycerol, were achieved in acidic medium by thermal conversion reactions. Condensation/cyclization reactions of the thermal degradation products of glycerol were investigated in situ using different ammonia and acidic moiety producing inorganic ammonium salts under pyrolysis or microwave heating conditions. The reaction parameters were studied in detail and satisfying product yields up to 72 % were obtained under optimized conditions. Structural identification of all compounds was accomplished by spectroscopic methods.


Effects Of Functional Groups Of Triple Bonds Containing Molecules On Nickel Electroplating, Esma Sezer, Belkiz Ustamehmetoğlu, Ramazan Katirci Jan 2014

Effects Of Functional Groups Of Triple Bonds Containing Molecules On Nickel Electroplating, Esma Sezer, Belkiz Ustamehmetoğlu, Ramazan Katirci

Turkish Journal of Chemistry

The effects of propargyl alcohol (PA), propynol ethoxylate (PME), propargyl sulfonate (PS), and diethylaminopropyne (DEP) compounds as additives in a Watts bath on coating brightness, thickness, and efficiency were investigated and compared using electrochemical methods such as linear and square wave voltammetry (SWV), chronoamperometry, chronopotentiometry, electrochemical impedance (EIS), and X-ray fluorescence (XRF) spectroscopy. The charge transfer resistance values obtained in the presence of PA and PME were similar and higher than the other values obtained; this result suggests that PA and PME have better adsorption. The optic and XRF measurements revealed that for the PS molecule the plating is the …


Binding Of Flavanone With \Beta-Cd/Ctdna: A Spectroscopic Investigation, Chandrasekaran Sowrirajan, Sameena Yousuf, Muthu Vijayan Enoch Israel Vijayaraj Jan 2014

Binding Of Flavanone With \Beta-Cd/Ctdna: A Spectroscopic Investigation, Chandrasekaran Sowrirajan, Sameena Yousuf, Muthu Vijayan Enoch Israel Vijayaraj

Turkish Journal of Chemistry

The inclusion complexation of flavanone with \beta-cyclodextrin was studied by ultraviolet absorption, steady state fluorescence, time-resolved fluorescence, and 2D ROESY nuclear magnetic resonance spectroscopic techniques. A 1:1 stoichiometric ratio was determined for the inclusion of flavanone with \beta-cyclodextrin. The Stern--Volmer constant for the accessible fraction of the binding of flavanone with \beta-cyclodextrin, and the binding constant for the flavanone--\beta-cyclodextrin complex are reported. The flavanone--\beta-cyclodextrin inclusion complex was characterized by 2D ROESY NMR spectroscopy. The binding of flavanone with ctDNA and the effect of \beta-cyclodextrin on the binding of flavanone to ctDNA were studied by absorption and fluorescence techniques. Binding constants …


N-Heterocyclic Carbene (Nhc) Palladium(Ii) Complexes Bearing Chiral Oxazoline Ligands And Their Catalytic Activities In Allylic Alkylation Reactions, Serpi̇l Deni̇zalti, Hayati̇ Türkmen, Beki̇r Çeti̇nkaya Jan 2014

N-Heterocyclic Carbene (Nhc) Palladium(Ii) Complexes Bearing Chiral Oxazoline Ligands And Their Catalytic Activities In Allylic Alkylation Reactions, Serpi̇l Deni̇zalti, Hayati̇ Türkmen, Beki̇r Çeti̇nkaya

Turkish Journal of Chemistry

NHC--Pd(II) complexes bearing a chiral oxazoline ligand (IIIa--f) were synthesized by cleavage of dimeric palladium complexes with the oxazoline ligand. They were fully characterized by ^1H and ^{13}C NMR and elemental analyses. The catalytic activity of the complexes (IIIa--f) in allylic alkylation reactions was evaluated. The complex IIIa was found to be the most active catalyst. Very low ee values indicate that the oxazoline is dissociated from the active catalytic species.


Synthesis, Anticandidal Activity, And Cytotoxicity Of Some Thiazole Derivatives With Dithiocarbamate Side Chains, Leyla Yurttaş, Yusuf Özkay, Fati̇h Demi̇rci̇, Gamze Göger, Şafak Ulusoylar Yildirim, Usama Abu Mohsen, Ömer Öztürk, Zafer Asim Kaplancikli Jan 2014

Synthesis, Anticandidal Activity, And Cytotoxicity Of Some Thiazole Derivatives With Dithiocarbamate Side Chains, Leyla Yurttaş, Yusuf Özkay, Fati̇h Demi̇rci̇, Gamze Göger, Şafak Ulusoylar Yildirim, Usama Abu Mohsen, Ömer Öztürk, Zafer Asim Kaplancikli

Turkish Journal of Chemistry

Some thiazole derivatives bearing dithiocarbamic acid esters were synthesized in order to investigate their anticandidal activity and cytotoxicity. The structures of the obtained final compounds (6a--j) were confirmed by spectral data (IR, ^1H NMR, ^{13}C NMR, and MS) and elemental analysis. The anticandidal activity of the compounds was determined (6a--j) using the microbroth dilution method and their cytotoxicity was evaluated according to the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay against normal cells. Contrary to expectations, weak antifungal activity was observed with IC_{50} values ranging between 30 and 403 \mu g/mL.


Td-Dft Calculations And Mcd Spectroscopy Of Porphyrin And Phthalocyanine Analogues: Rational Design Of Photosensitizers For Pdt And Nir Region Sensor Applications, John Mack, Martijn Wildervanck, Tebello Nyokong Jan 2014

Td-Dft Calculations And Mcd Spectroscopy Of Porphyrin And Phthalocyanine Analogues: Rational Design Of Photosensitizers For Pdt And Nir Region Sensor Applications, John Mack, Martijn Wildervanck, Tebello Nyokong

Turkish Journal of Chemistry

Geometry optimizations and TD-DFT calculations have been carried out on series of fused-ring-expanded phthalonitriles, phthalocyanines, and aza-dipyrromethene boron difluoride (aza-BODIPY) dyes and trends in their optical and redox properties have been analyzed. The potential utility of fused-ring-expanded phthalocyanine and aza-BODIPY analogues for photodynamic therapy and near infrared region sensor applications is assessed on this basis. Recent attempts to prepare fused-ring-expanded aza-BODIPY analogues with benzene, pyrazine, and naphthalene rings have demonstrated that the properties of aza-BODIPYs vary markedly when different fused ring systems are added to the \beta-carbons of the pyrrole rings. A comparison of the TD-DFT calculations demonstrates that, as …


Electrochemistry Of Fe(Iv) And Mn(Iv) Corroles Containing Meso-Dichlorophenyl Substituents And The Use Of These Compounds As Catalysts For The Electroreduction Of Dioxygen In Acid Media, Lina Ye, Zhongping Ou, Deying Meng, Mingzhu Yuan, Yuanyuan Fang, Karl M. Kadish Jan 2014

Electrochemistry Of Fe(Iv) And Mn(Iv) Corroles Containing Meso-Dichlorophenyl Substituents And The Use Of These Compounds As Catalysts For The Electroreduction Of Dioxygen In Acid Media, Lina Ye, Zhongping Ou, Deying Meng, Mingzhu Yuan, Yuanyuan Fang, Karl M. Kadish

Turkish Journal of Chemistry

Two meso-dichlorophenyl substituted metallocorroles were synthesized and characterized as to their electrochemical and spectroelectrochemical properties in dichloromethane, benzonitrile, and pyridine containing 0.1 M tetra-n-butylammonium perchlorate (TBAP) as supporting electrolyte. The examined compounds are represented as (Cl_2Ph)_3CorFe^{IV}Cl and (Cl_2Ph)_3CorMn^{IV}Cl where (Cl_2Ph)_3Cor is the trianion of 5,10,15-tri(2,4-dichlorophenyl)corrole. Each metallocorrole was examined as to its catalytic activity for the electoreduction of dioxygen when coated on an edge-plane pyrolytic graphite electrode in 1.0 M HClO_4. Cyclic voltammetry combined with linear sweep voltammetry at a rotating disk electrode (RDE) and a rotating ring disk electrode (RRDE) was utilized to evaluate the catalytic activity for the …


Ascension, Megan Hopkins, Jeremy Wilburn, Sandra Bennett Jan 2014

Ascension, Megan Hopkins, Jeremy Wilburn, Sandra Bennett

Research & Economic Development

editor: Mary Beth Spence director: Megan Hopkins designer:

Megan Hopkins, Sherry Woods photographer: Jeremy Wilburn


The Second-Generation Z (Redshift) And Early Universe Spectrometer. I. First-Light Observation Of A Highly Lensed Local Ulirg Analog At High-Z, Carl Ferkinhoff, Drew Brisbin, Stephen Parshley, Thomas Nikola, Gordon J. Stacey, Justin Schoenwald, James L. Higdon, Sarah J.U. Higdon, Aprajit Verma, Dominik Riechers, Steven Hailey-Dunsheath, Karl M. Menten, Rolf Güsten, Axel Weiß, Kent Irwin, Hsiao M. Cho, Michael Niemack, Mark Halpern, Mandana Amiri, Matthew Hasselfield, D.V. Wiebe, Peter A.R. Ade, Carol E. Tucker Jan 2014

The Second-Generation Z (Redshift) And Early Universe Spectrometer. I. First-Light Observation Of A Highly Lensed Local Ulirg Analog At High-Z, Carl Ferkinhoff, Drew Brisbin, Stephen Parshley, Thomas Nikola, Gordon J. Stacey, Justin Schoenwald, James L. Higdon, Sarah J.U. Higdon, Aprajit Verma, Dominik Riechers, Steven Hailey-Dunsheath, Karl M. Menten, Rolf Güsten, Axel Weiß, Kent Irwin, Hsiao M. Cho, Michael Niemack, Mark Halpern, Mandana Amiri, Matthew Hasselfield, D.V. Wiebe, Peter A.R. Ade, Carol E. Tucker

Physics & Astronomy: Faculty Publications

We recently commissioned our new spectrometer, the second-generation z(Redshift) and Early Universe Spectrometer (ZEUS-2) on the Atacama Pathfinder Experiment telescope. ZEUS-2 is a submillimeter grating spectrometer optimized for detecting the faint and broad lines from distant galaxies that are redshifted into the telluric windows from 200 to 850 μm. It uses a focal plane array of transition-edge sensed bolometers, the first use of these arrays for astrophysical spectroscopy. ZEUS-2 promises to be an important tool for studying galaxies in the years to come because of its synergy with Atacama Large Millimeter Array and its capabilities in the short submillimeter …


The Fear Of The Lord Is The Beginning Of Librarianship, Garrett Trott Jan 2014

The Fear Of The Lord Is The Beginning Of Librarianship, Garrett Trott

The Christian Librarian

Terminology plays a critical role in understanding any discipline. The terms data, information, knowledge and wisdom are key terms when working with library and information science, thus how they are defined underpin a librarian’s philosophy, which is manifested in service. This article will look at these four key terms through a rigorous Christian intellectual framework, suggesting that the fear of the Lord provides a foundation upon which library services should be based. After providing this framework, this article will provide some examples of how the fear of the Lord can be applied in library services.


Manage Research Workflows With Open Science Framework And Digital Commons, Data Management Services, Zach S. Henderson Library Jan 2014

Manage Research Workflows With Open Science Framework And Digital Commons, Data Management Services, Zach S. Henderson Library

University Libraries: Instructional Resources (Archived)

Presentation slides on using Open Science Framework and Digital Commons for research data.


Selective Synthesis Of Cyclododec-2-En-1-Yl Ethers Via Palladium-Catalyzed Allylic Substitution Reaction: A Kinetic Study, Asen Kolev, Magdalena Mitkova, Stefan Kotov, Encho Balbolov Jan 2014

Selective Synthesis Of Cyclododec-2-En-1-Yl Ethers Via Palladium-Catalyzed Allylic Substitution Reaction: A Kinetic Study, Asen Kolev, Magdalena Mitkova, Stefan Kotov, Encho Balbolov

Turkish Journal of Chemistry

The palladium-catalyzed reaction between isomeric cyclododec-2-en-1-yl acetates and primary aliphatic alcohols was found to result in high yields of the reaction products obtained. The selectivity with respect to cyclododec-2-en-1-yl ethers formed as reaction products ranged from 73% to 93%. The kinetics of the reaction of acetoxycyclododec-2-enes with alcohols was studied within the temperature range of 328--358 K. A kinetic equation best fitting the experimental data was provided.