text:
Go to the main menu
Skip to content
Go to bottom
search word
Journal Browse
About Journal
> Journal Vol & Issue
Bulletin of the Korean Chemical Society
Journal Basic Information
pISSN :
eISSN :
Journal DOI :
Frequency :
Korean Chemical Society
Editor in Chief :
Byeong Moon Kim
Volume & Issues
Volume 35, Issue 12 - Dec 2014
Volume 35, Issue 11 - Nov 2014
Volume 35, Issue 10 - Oct 2014
Volume 35, Issue 9 - Sep 2014
Volume 35, Issue 8 - Aug 2014
Volume 35, Issue 7 - Jul 2014
Volume 35, Issue 6 - Jun 2014
Volume 35, Issue 5 - May 2014
Volume 35, Issue 4 - Apr 2014
Volume 35, Issue 3 - Mar 2014
Volume 35, Issue 2 - Feb 2014
Volume 35, Issue 1 - Jan 2014
Selecting the target year
Nanocomposites Based on Polytetrafluoroethylene and Ultrahigh Molecular Weight Polyethylene: A Brief Review
Kirillina, Iu.V. ; Nikiforov, L.A. ; Okhlopkova, A.A. ; Sleptsova, S.A. ; Yoon, Cheonho ; Cho, Jin-Ho ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3411~3420
DOI : 10.5012/bkcs.2014.35.12.3411
Deficiencies in wear and frost resistance as well as mechanical strength constitute the main causes of equipment failure under the harsh climatic conditions of the Earth's polar regions. To improve the properties of the materials used in this equipment, nanoparticle composites have been prepared from clays such as kaolinite, hectorite, and montmorillonite in combination with polytetrafluoroethylene (PTFE) or ultrahigh molecular weight polyethylene (UHMWPE). A number of techniques have been proposed to disperse silicate particles in PTFE or UHMWPE polymer matrices, and several successful processes have even been widely applied. Polymer nanocomposites that exhibit enhanced mechanical and thermal properties are promising materials for replacing metals and glass in the equipment intended for Arctic use. In this article, we will review PTFE- and UHMWPE-based layered silicate nanocomposites.
Synthesis of Silicon Nanocrystal by Magnesium Directed Reduction of the Silica Nanoparticle Formed in Micro-Emulsion of Reverse Micelle
Le, Thu-Huong ; Jeong, Hyun-Dam ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3421~3422
DOI : 10.5012/bkcs.2014.35.12.3421
Mechanistic Studies on Alcoholysis of α-Keto esters
Song, Song-Ei ; Lim, Bum Hee ; Han, Kwan Woo ; Park, Tae Jun ; Park, Bong Ser ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3423~3424
DOI : 10.5012/bkcs.2014.35.12.3423
Fabrication of Free-floating Nanohybrid Microparticles with ZnO Nanowire Surfaces
Song, Suk-Heung ; Park, Wook ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3425~3426
DOI : 10.5012/bkcs.2014.35.12.3425
Improvement in Plume Dispersion Formulas for Stack Emissions Using Ground-based Imaging-DOAS Data
Lee, Hanlim ; Ryu, Jaeyong ; Jeong, Ukkyo ; Noh, Youngmin ; Shin, Sung Kyun ; Hong, Hyunkee ; Kwon, Soonchul ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3427~3432
DOI : 10.5012/bkcs.2014.35.12.3427
This study introduces a new method of combining Imaging Differential Optical Absorption Spectroscopy (Imaging-DOAS) data and plume dispersion formulas for power plant emissions to determine the three-dimensional structure of a dispersing pollution plume and the spatial distributions of trace gas volume mixing ratios (VMRs) under conditions of negligible water droplet and aerosol effects on radiative transfer within the plume. This novel remote-sensing method, applied to a power plant stack plume, was used to calculate the two-dimensional distributions of sulfur dioxide (
) and nitrogen dioxide (
) VMRs in stack emissions for the first time. High
VMRs were observed only near the emission source, whereas high
VMRs were observed at locations several hundreds of meters away from the initial emission. The results of this study demonstrate the capability of this new method as a tool for estimating plume dimensions and trace gas VMRs in power plant emissions.
Synthesis of Piperidones from Benzyl Azides and Acetone
Han, Junghoon ; Rhee, Young Ho ; Park, Jaiwook ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3433~3436
DOI : 10.5012/bkcs.2014.35.12.3433
A new method for the synthesis of 2,2-dimethyl-6-substituted 4-piperidone was developed; two equivalents of acetone were annulated with N-unsubstituted imines in-situ generated from benzyl azides using a ruthenium catalyst in the presence of
A Carbazole Based Bimodal "Turn-On" Fluorescent Probe for Biothiols (Cysteine/Homocysteine) and Fluoride: Sensing, Imaging and its Applications
Kaur, Matinder ; Yoon, Byungkwon ; Kumar, Rajesh ; Cho, Min Ju ; Kim, Hak Joong ; Kim, Jong Seung ; Choi, Dong Hoon ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3437~3442
DOI : 10.5012/bkcs.2014.35.12.3437
A well-known carbazole-based precursor (probe 1) was used for the detection of cysteine/homocysteine and fluoride. Probe 1 shows a "turn-on" response to cysteine/homocysteine and fluoride via enhancement in emission intensity at 442 nm and 462 nm respectively, in solutions and living cells. Furthermore, probe 1 behaves as a fluorescent molecular switch between cysteine/homocysteine and fluoride as the chemical inputs, which have been used for the development of a combinatorial logic circuit and a molecular keypad lock.
Solution of Klein Gordon Equation for Some Diatomic Molecules with New Generalized Morse-like Potential Using SUSYQM
Isonguyo, Cecilia N. ; Okon, Ituen B. ; Ikot, Akpan N. ; Hassanabadi, Hassan ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3443~3446
DOI : 10.5012/bkcs.2014.35.12.3443
We present the solution of Klein Gordon equation with new generalized Morse-like potential using SUSYQM formalism. We obtained approximately the energy eigenvalues and the corresponding wave function in a closed form for any arbitrary l state. We computed the numerical results for some selected diatomic molecules.
A New Flavonol Glycoside from the Leaves of Boscia senegalensis
Morgan, Abubaker M.A. ; Kim, Jang Hoon ; Kim, Sang Kyum ; Lim, Chi-Hwan ; Kim, Young Ho ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3447~3452
DOI : 10.5012/bkcs.2014.35.12.3447
Detailed chemical investigation of Boscia senegalensis (Per) Lam. ex Poir. led to the isolation of one new flavonol glycoside, rhamnocitrin-3-O-
-(6"-O-E-feruloyl)-glucopyranoside named bosenegaloside A (1), with seven known compounds, rhamnocitrin-3-O-
-(6"-O-E-p-coumaroyl)-glucopyranoside (2), rhamnocitrin-3-O-
-glucopyranoside (3), 3,4,5-trimethoxyphenol-
-glucopyrinoside (4), lasianthionoside A (5), 3,7-dimethyl-1-octene-3,6,7-triol-6-O-
-glucopyranoside (6), syringin (7), and austroside B (8). The chemical structures of these compounds were elucidated from spectroscopic data and by comparison of these data with previously published results. The inhibitory activity of the isolated compounds on soluble epoxide hydrolase (sEH) was assessed. Compounds 1-3 potently inhibited sEH activity with
values of
, and
, respectively.
Facile Synthesis of Natural Moracin Compounds using Pd(OAc)
as a Sonogashira Coupling Reagent
Lee, Jae Jun ; Yun, So-Ra ; Jun, Jong-Gab ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3453~3458
DOI : 10.5012/bkcs.2014.35.12.3453
An efficient and practical synthesis of natural moracins, which have diverse range of biological properties including anticancer, antioxidant, and antibacterial activities, has been achieved using
as a Sonogashira coupling reagent which solved the unreactive problems in case of higher electron density of haloaryl compounds in the reaction. Lowering electron density of halophenol with acetylation and changing Sonogashira coupling reagent from
smoothly produce the benzofuran structures in the syntheses of moracins M, N and S. The electron deficient halobenzaldehyde, however, easily forms the benzofuran using original Sonogashira conditions, and utilized for the first synthesis of moracin Y.
Anion-Dependent Exocyclic Mercury(II) Coordination Polymers of Bis-dithiamacrocycle
Siewe, Arlette Deukam ; Kim, Seulgi ; Choi, Kyu Seong ; Lee, Shim Sung ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3459~3464
DOI : 10.5012/bkcs.2014.35.12.3459
Synthesis and structural characterization of mercury(II) halides and perchlorate complexes (1-4) of bis-
-macrocycle (L) are reported. L reacts with mercury(II) chloride and bromide to yield an isostructural 2D coordination polymers with type
(1: X = Cl and 2: X = Br). In 1, each Hg atom which lies outside the cavity is six-coordinate with a distorted octahedral geometry, being bound to four adjacent ligands via monodentate Hg-S bonds and two remaining sites are occupied by two terminal chlorido ligands to form a fishnet-like 2D structure. When reacting with mercury(II) iodide, L afforded a 1D coordination polymer
(3) in which each exocyclic Hg atom is four-coordinate, being bound to two sulfur donors from different ligands doubly bridging the ligand molecules in a head-to-tail mode. The coordination sphere in 3 is completed by two iodo terminal ligands, adopting a distorted tetrahedral geometry. On reacting with mercury(II) perchlorate, L forms solvent-coordinated 1D coordination polymer
(4) instead of the anion-coordination. In 4, the Hg atom is five-coordinate, being bound to two sulfur donors from two different ligands doubly bridging the ligand molecules in a side-by-side mode to form a ribbon-like 1D structure. The three remaining coordination sites in 4 are completed by three DMF molecules in a monodentate manner. Consequently, the different structures and connectivity patterns for the observed exocyclic coordination polymers depending on the anions used are influenced not only by the coordination ability of the anions but also by anion sizes.
Porous Silica Particles As Chromatographic Separation Media: A Review
Cheong, Won Jo ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3465~3474
DOI : 10.5012/bkcs.2014.35.12.3465
Porous silica particles are the most prevailing raw material for stationary phases of liquid chromatography. During a long period of time, various methodologies for production of porous silica particles have been proposed, such as crashing and sieving of xerogel, traditional dry or wet process preparation of conventional spherical particles, preparation of hierarchical mesoporous particles by template-mediated pore formation, repeated formation of a thin layer of porous silica upon nonporous silica core (core-shell particles), and formation of specific silica monolith followed by grinding and calcination. Recent developments and applications of useful porous silica particles will be covered in this review. Discussion on sub-
silica particles including nonporous silica particles, carbon or metal oxide clad silica particles, and molecularly imprinted silica particles, will also be included. Next, the individual preparation methods and their feasibilities will be collectively and critically compared and evaluated, being followed by conclusive remarks and future perspectives.
Systematic Analysis for the Effects of Atmospheric Pollutants in Cathode Feed on the Performance of Proton Exchange Membrane Fuel Cells
Yoon, Young-Gon ; Choi, Insoo ; Lee, Chang-Ha ; Han, Jonghee ; Kim, Hyoung-Juhn ; Cho, EunAe ; Yoo, Sung Jong ; Nam, Suk Woo ; Lim, Tae-Hoon ; Yoon, Jong Jin ; Park, Sehkyu ; Jang, Jong Hyun ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3475~3481
DOI : 10.5012/bkcs.2014.35.12.3475
This paper describes how primary contaminants in ambient air affect the performance of the cathode in fuel cell electric vehicle applications. The effect of four atmospheric pollutants (
, and CO) on cathode performance was investigated by air impurity injection and recovery test under load. Electrochemical analysis via polarization and electrochemical impedance spectroscopy was performed for various concentrations of contaminants during the impurity test in order to determine the origins of performance decay. The variation in cell voltage derived empirically in this study and data reported in the literature were normalized and juxtaposed to elucidate the relationship between impurity concentration and performance. Mechanisms of cathode degradation by air impurities were discussed in light of the findings.
Errors in Isotope Dilution Caused by Matrix-induced Mass Bias Effect in Quadrupole Inductively Coupled Plasma-Mass Spectrometry
Pak, Yong-Nam ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3482~3488
DOI : 10.5012/bkcs.2014.35.12.3482
Matrix-induced mass bias and its effect on the accuracy of isotope ratio measurements have been examined for a quadrupole-based inductively coupled plasma-mass spectrometer (Q ICP-MS). Matrix-induced mass bias effect was directly proportional to % mass difference, and its magnitude varied for element and nebulizer flow rate. For a given element and conditions in a day, the effect was consistent. The isotope ratio of Cd106/Cd114 under
U matrix deviated from the natural value significantly by 3.5%. When Cd 111 and Cd114 were used for the quantification of Cd with isotope dilution (ID) method, the average of differences between the calculated and measured concentrations was -0.034% for samples without matrix (
for the period of 6 months). However, the error was as large as 1.5% for samples with
U. The error in ID caused by matrix could be larger when larger mass difference isotopes are used.
Synthesis of Dithiolopyrrolone Derivatives and Their Leukocyte-Increasing Activities
Li, Chungang ; Sun, Yiping ; Wang, Guoping ; Tan, Xiangduan ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3489~3494
DOI : 10.5012/bkcs.2014.35.12.3489
In search of new antileukopenia agents, twenty dithiolopyrrolone derivatives were synthesized and evaluated for their leukocyte-increasing activities in normal mice. Among the synthesized compounds 4-23, compounds 5 and 6 showed significant leukocyte-increasing activity ( p < 0.01), and compounds 4, 9 and 16 had a moderate effect ( p < 0.05). Compound 5 also displayed stronger leukocyte-increasing activity than that of the positive recombinant human granulocyte colony stimulating factor (rhG-CSF). Above all, compound 5 would be a potential antileukopenia agent which deserved further research.
Crystal Structure and Tautomerism Study of the Mono-protonated Metformin Salt
Wei, Xiaodan ; Fan, Yuhua ; Bi, Caifeng ; Yan, Xingchen ; Zhang, Xia ; Li, Xin ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3495~3501
DOI : 10.5012/bkcs.2014.35.12.3495
A novel crystal, the mono-protonated metformin acetate (1), was obtained and characterized by elemental analysis, IR spectroscopy and X-ray crystallography. It was found that one of the imino group in the metformin cation was protonated along with the proton transfer from the secondary amino group to the other imino group. Its crystal structure was then compared with the previously reported diprotonated metformin oxalate (2). The difference between them is that the mono-protonated metformin cations can be linked by hydrogen bonding to form dimers while the diprotonated metformin cations cannot. Both of them are stabilized by intermolecular hydrogen bonds to assemble a 3-D supermolecular structure. The four potential tautomer of the mono-protonated metformin cation (tautomers 1a, 1b, 1c and 1d) were optimized and their single point energies were calculated by Density Functional Theory (DFT) B3LYP method based on the Polarized Continuum Model (PCM) in water, which shows that the most likely existed tautomer in human cells is the same in the crystal structure. Based on the optimized structure, their Wiberg bond orders, Natural Population Analysis (NPA) atomic charges, molecular electrostatic potential (MEP) maps were calculated to analyze their electronic structures, which were then compared with the corresponding values of the diprotonated metformin cation (cation 2) and the neutral metformin (compound 3). Finally, the possible tautomeric mechanism of the mono-protonated metformin cation was discussed based on the observed phenomena.
Synthesis and Potent Anti-leukemic Activity of Novel 5'-Norcarbocyclic C-nucleoside Phosphonic Acids
Kim, Seyeon ; Kim, Eunae ; Oh, Chang-Hyun ; Yoo, Kyung Ho ; Hong, Joon Hee ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3502~3508
DOI : 10.5012/bkcs.2014.35.12.3502
The first synthetic route to 5'-norcarbocyclic C-nucleoside [7-oxa-7,9-dideazadenosine (furo[3,2-d]pyrimidine) and 9-deazaadenosine (pyrrolo[3,2-d]pyrimidine)] phosphonic acids from commercially available 1,3-dihydroxy cyclopentane was described. The key C-C bond formation from sugar to base precursor was performed using Knoevenagel-type condensation from a ketone derivative. Synthesized C-nucleoside phosphonic acids were tested for anti-HIV activity as well as anti-leukemic activity. Compound 26 showed significant anti-leukemic activity.
Composition Effect of the Outer Layer on the Vesicle Fusion Catalyzed by Phospholipase D
Park, Jin-Won ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3509~3513
DOI : 10.5012/bkcs.2014.35.12.3509
Phospholipase D (PLD) catalyzed the generation of phosphatidic acid (PA) from phosphatidylcholine (PC) at the outer layer of the vesicles prepared through layer by layer via a double emulsion technique. The generation induced a curvature change in the vesicles, which eventually led them to fuse each other. The ratio of two-fatty-acid-tail ethanolamine (PE) to one-fatty-acid-tail ethanolamine (PE) was found to acquire the condition where the mixed-phospholipid vesicles were stable identically with pure two-fatty-acid-tail PC. The effect of the outer-layer mixture on the PLD-induced vesicle fusion was investigated using the fluorescence intensity change. 8-Aminonaph-thalene-1,3,6-trisulfonic acid disodium salt (ANTS) and p-Xylene-bis(N-pyridinium bromide) (DPX) were encapsulated in the vesicles, respectively, for the quantification of the fusion. The fluorescence scale was calibrated with the fluorescence of a 1/1 mixture of ANTS and DPX vesicles in NaCl buffer taken as 100% fluorescence (0% fusion) and the vesicles containing both ANTS and DPX as 0% fluorescence (100% fusion), considering the leakage into the medium studied directly in a separate experiment using vesicles containing both ANTS and DPX. The fusion data for each composition were acquired with the subtraction of the leakage from the quenching. From the monitoring, the vesicle fusion caused by the PLD reaction seems dominantly to occur rather than the vesicle lysis, because the composition effect on the fusion was observed identically with that on the change in the vesicle structure. Furthermore, the diameter measurements also support the fusion dominancy.
DFT Calculated Structures and IR Spectra of the Conformers of para-Bromocalix[4]aryl Derivatives
Ahn, Sangdoo ; Lee, Dong-Kuk ; Choe, Jong-In ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3514~3520
DOI : 10.5012/bkcs.2014.35.12.3514
Molecular structures of the various conformers of para-bromocalix[4]aryl derivatives 1-4 were optimized using the DFT B3LYP calculation method. The total electronic and Gibbs free energies and normal vibrational frequencies of the different structures (CONE, partial cone (PACO), 1,2-Alternate(1,2-A) and 1,3-Alternate(1,3-A)) were calculated from the four kinds of para-bromocalix[4]aryl derivatives. The B3LYP/6-31G(d,p) calculations suggested the following: 1(PACO) is the most stable among four conformers of 1; 2(CONE) is the most stable among five conformers of 2; 3(PACO) is the most stable among four conformers of 3; 4(1,3-A) is the most stable among four conformers of 4. All the most stable structures optimized by the B3LYP calculation method were in accordance with the experimental crystal structures of 1-4. The calculated IR spectra of the various conformers (CONE, PACO, 1,2-A and 1,3-A) of 1-4 were compared.
Synthesis of Magnetic Sonophotocatalyst and its Enhanced Biodegradability of Organophosphate Pesticide
Lirong, Meng ; Jianjun, Shi ; Ming, Zhao ; Jie, He ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3521~3526
DOI : 10.5012/bkcs.2014.35.12.3521
A magnetic sonophotocatalyst
is synthesized for the enhanced biodegradability of organophosphate pesticide. The as-prepared catalysts were characterized using different techniques, such as X-ray diffraction (XRD) and transmission electron microscopy (TEM). The radial sonophotocatalytic activity of
nanocomposite was investigated, in which commercial dichlorvos (DDVP) was chosen as an object. The degradation efficiency was evaluated in terms of chemical oxygen demand (COD) and enhancement of biodegradability. The effect of different factors, such as reaction time, pH, the added amount of catalyst on
removal efficiency were investigated. The average
removal efficiency reached 63.13% after 240 min in 12 L sonophotocatalytic reactor (catalyst
, pH 7.3). The synergistic effect occurs in the combined sonolysis and photocatalysis which is proved by the significant improvement in
removal efficiency compared with that of solo photocatalysis. Under this experimental condition, the
ratio rose from 0.131 to 0.411, showing a remarkable improvement in biodegradability. These results showed that sonophotocatalysis may be applied as pre-treatment of pesticide wastewater, and then for biological treatment. The synthesized magnetic nanocomposite had good photocatalytic performance and stability, as when it was used for the fifth time, the
removal efficiency was still about 62.38%.
Molecular Dynamics Simulation Study of Transport Properties of Diatomic Gases
Lee, Song Hi ; Kim, Jahun ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3527~3531
DOI : 10.5012/bkcs.2014.35.12.3527
In this paper, we report thermodynamic and transport properties (diffusion coefficient, viscosity, and thermal conductivity) of diatomic gases (
, and
) at 273.15 K and 1.00 atm by performing molecular dynamics simulations using Lennard-Jones intermolecular potential and modified Green-Kubo formulas. The results of self-diffusion coefficients of diatomic gases obtained from velocity auto-correlation functions by Green-Kubo relation are in good agreement with those obtained from mean square displacements by Einstein relation. While the results for viscosities of diatomic gases obtained from stress auto-correlation functions underestimate the experimental results, those for thermal conductivities obtained from heat flux auto-correlation functions overestimate the experimental data except
Temperature and Electric Field Effect on Proton Transfer in Adenine-thymine
Zhang, Guiqing ; Xie, Shijie ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3532~3534
DOI : 10.5012/bkcs.2014.35.12.3532
In theoretical simulations of proton transfer in DNA, environmental factors nearly have not been considered. In our calculations, using QM/MM method on the basis of CP2K, proton transfer on adenine-thymine base pair is studied in water, at wide scope temperature, and under the external electric field. Our results indicate that the external electric field induces the proton transfer at room temperature, and its intensity and temperature have some effect on hole localization and proton transfer.
SBA-15 Supported Fe, Ni, Fe-Ni Bimetallic Catalysts for Wet Oxidation of Bisphenol-A
Mayani, Suranjana V. ; Mayani, Vishal J. ; Kim, Sang Wook ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3535~3541
DOI : 10.5012/bkcs.2014.35.12.3535
Bisphenol A is considered as pollutant, because it is toxic and hazardous to living organisms even at very low concentrations. Biological oxidation used for removing this organic from waste water is not suitable and consequently application of catalytic wet oxidation has been considered as one of the best options for treating bisphenol A. We have developed Fe/SBA-15, Ni/SBA-15 and Fe-Ni/SBA-15 as heterogeneous catalysts using the advanced impregnation method for oxidation of bisphenol A in water. The catalysts were characterized with physico-chemical characterization methods such as, powder X-ray diffraction (PXRD), FT-IR measurements, N2 adsorption-desorption isotherm, thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis. This work illustrates activity of the catalysts for heterogeneous catalytic degradation reaction revealed with excellent conversion and recyclability. The degradation products identified were not persistent pollutants. GC-MS analysis identified the products: 2,4-hexadienedioic acid, 2,4-pentadienic acid and isopropanol or acetic acid. The leachability study indicated that the catalysts release very little metals to water. Therefore, the possibility of water contamination through metal leaching was almost negligible.
End-to-end Structural Restriction of α-Synuclein and Its Influence on Amyloid Fibril Formation
Hong, Chul-Suk ; Park, Jae Hyung ; Choe, Young-Jun ; Paik, Seung R. ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3542~3546
DOI : 10.5012/bkcs.2014.35.12.3542
Relationship between molecular freedom of amyloidogenic protein and its self-assembly into amyloid fibrils has been evaluated with
-synuclein, an intrinsically unfolded protein related to Parkinson's disease, by restricting its structural plasticity through an end-to-end disulfide bond formation between two newly introduced cysteine residues on the N- and C-termini. Although the resulting circular form of
-synuclein exhibited an impaired fibrillation propensity, the restriction did not completely block the protein's interactive core since co-incubation with wild-type
-synuclein dramatically facilitated the fibrillation by producing distinctive forms of amyloid fibrils. The suppressed fibrillation propensity was instantly restored as the structural restriction was unleashed with
-mercaptoethanol. Conformational flexibility of the accreting amyloidogenic protein to pre-existing seeds has been demonstrated to be critical for fibrillar extension process by exerting structural adjustment to a complementary structure for the assembly.
Nanosecond Gated Raman Spectroscopy for Standoff Detection of Hazardous Materials
Chung, Jin Hyuk ; Cho, Soo Gyeong ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3547~3552
DOI : 10.5012/bkcs.2014.35.12.3547
Laser Raman spectroscopy is one of the most powerful technologies for standoff detection of hazardous materials including explosives. Supported by recent development of laser and sensitive ICCD camera, the technology can identify trace amount of unknown substances in a distance. Using this concept, we built a standoff detection system, in which nanosecond pulse laser and nanosecond gating ICCD technique were delicately devised to avoid the large background noise which suppressed weak Raman signals from the target sample. In standoff detection of explosives which have large kill radius, one of the most important technical issues is the detection distance from the target. Hence, we focused to increase the detection distance up to 54 m by careful optimization of optics and laser settings. The Raman spectra of hazardous materials observed at the distance of 54 m were fully identifiable. We succeeded to detect and identify eleven hazardous materials of liquid or solid particles, which were either explosives or chemical substances used frequently in chemical plants. We also performed experiments to establish the limit of detection (LOD) of HMX at 10 m, which was estimated to be 6 mg.
Synthesis and Electrochemical Performance of Reduced Graphene Oxide/AlPO
-coated LiMn
for Lithium-ion Batteries
Hur, Jaehyun ; Kim, Il Tae ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3553~3558
DOI : 10.5012/bkcs.2014.35.12.3553
The reduced graphene oxide(rGO)/aluminum phosphate(
(LMNO) cathode material has been developed by hydroxide precursor method for LMNO and by a facile solution based process for the coating with GO/
on the surface of LMNO, followed by annealing process. The amount of
has been varied from 0.5 wt % to 1.0 wt %, while the amount of rGO is maintained at 1.0 wt %. The samples have been characterized by X-ray diffraction, scanning electron microscopy, and high-resolution transmission electron microscopy. The rGO/
-coated LMNO electrodes exhibit better cyclic performance compared to that of pristine LMNO electrode. Specifically, rGO(1%)/
(0.5%)- and rGO(1%)/
(1%)-coated electrodes deliver a discharge capacity of, respectively,
at C/6 rate, with a capacity retention of, respectively, 96% and 98% at 100 cycles. Furthermore, the surface-modified LMNO electrodes demonstrate higher-rate capability. The rGO(1%)/
(0.5%)-coated LMNO electrode shows the highest rate performance demonstrating a capacity retention of 91% at 10 C rate. The enhanced electrochemical performance can be attributed to (1) the suppression of the direct contact of electrode surface with the electrolyte, resulting in side reactions with the electrolyte due to the high cut-off voltage, and (2) smaller surface resistance and charge transfer resistance, which is confirmed by total polarization resistance and electrochemical impedance spectroscopy.
Study on Anharmonic Effect of the Unimolecular Reaction of CH
Zhong, Jingjun ; Li, Qian ; Luo, Ji ; Xia, Wenwen ; Yao, Li ; Lin, S.H. ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3559~3566
DOI : 10.5012/bkcs.2014.35.12.3559
Study on the unimolecular reaction for
is carried out. The structures, energy barriers and zero point energy of the three channels in the title unimolecular reactions are computed with the MP2/6-311++G(3df, 3pd) method. RRKM theory is used to calculate the rate constants of canonical case at temperature range of 500-5000 K and microcanonical system at total energy of 19.05-71.68 kcal/mol. The results indicate that the anharmonic effect and isotope effect are very small for the three channels, and the anharmonic rate constants, around
, are close to the experimental prediction reasonably.
The Study of Adsorption Structures of 3-Methyl-5-Pyrazolone on the Ge(100) Surface
Lee, Myungjin ; Lee, Hangil ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3567~3570
DOI : 10.5012/bkcs.2014.35.12.3567
The most stable adsorption structures and energies of four tautomers of 3-methyl-5-pyrazolone (keto-1, enol-1, keto-2, and enol-2) on Ge(100) surfaces were investigated using density functional theory (DFT) calculations. The enol-1, keto-2, and enol-2 tautomers, but not the keto-1 tautomer, were found to exhibit stable adsorption structures on the Ge(100)-
surface. Of these three adsorption structures, that of enol-2 is the most stable.
Synthesis and Biological Evaluation of Tetrapeptide Ketones as Reversible 20S Proteasome Inhibitors
Latif, Muhammad ; Jung, Myoung Eun ; Lee, Kwangho ; Choi, Gildon ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3571~3575
DOI : 10.5012/bkcs.2014.35.12.3571
Proteasome, a multicatalytic protease complex, has been validated as a promising therapeutic target in oncology. Carfilzomib (Kyprolis
), a tetrapeptide epoxyketone, irreversibly inhibits the chymotrypsin-like (CT-L) activity of the proteasome and has been recently approved for multiple myeloma treatment by FDA. A chemistry effort was initiated to discover the compounds that are reversibly inhibit the proteasome by replacing the epoxyketone moiety of carfilzomib with a variety of ketones as reversible and covalent warheads at the C-terminus. The newly synthesized compounds exhibited significant inhibitory activity against CT-L activity of the human 20S proteasome. When the compounds were tested for cancer cell viability, 14-8 was found to be most potent in inhibiting Molt-4 acute lymphoblastic leukemia cell line with a
. Cytotoxic effects of 14-8 were further evaluated by cell cycle analysis and Western blotting, demonstrating activation of apoptotic pathways.
Electrochemical Behavior of Pt-Ru Catalysts on Zeolite-templated Carbon Supports for Direct Methanol Fuel Cells
Lim, Tae-Jin ; Lee, Seul-Yi ; Yoo, Yoon-Jong ; Park, Soo-Jin ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3576~3582
DOI : 10.5012/bkcs.2014.35.12.3576
Zeolite-templated carbons (ZTCs), which have high specific surface area, were prepared by a conventional templating method using microporous zeolite-Y for catalyst supports in direct methanol fuel cells. The ZTCs were synthesized at different temperatures to investigate the characteristics of the surface produced and their electrochemical properties. Thereafter, Pt-Ru was deposited at different carbonization temperatures by a chemical reduction method. The crystalline and structural features were investigated using X-ray diffraction and scanning electron microscopy. The textural properties of the ZTCs were investigated by analyzing
/77 K adsorption isotherms using the Brunauer-Emmett-Teller equation, while the micro- and meso-pore size distributions were analyzed using the Barrett-Joyner-Halenda and Harvarth-Kawazoe methods, respectively. The surface morphology was characterized using transmission electron microscopy and inductively coupled plasma-mass spectrometry. The electrochemical properties of the Pt-Ru/ZTCs catalysts were also analyzed by cyclic voltammetry measurements. From the results, the ZTCs carbonized at
show the highest specific surface areas. In addition, ZTC900-PR led to uniform dispersion of Pt-Ru on the ZTCs, which enhanced the electro-catalytic activity of the Pt-Ru catalysts. The particle size of ZTC900-PR catalyst is about 3.4 nm, also peak current density from the CV plot is
. Therefore, electro-catalytic activity of the ZTC900-PR catalyst is higher than those of ZTC1000-PR catalyst.
Fabrication of Mesoporous Hollow TiO
Microcapsules for Application as a DNA Separator
Jeon, Sang Gweon ; Yang, Jin Young ; Park, Keun Woo ; Kim, Geon-Joong ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3583~3589
DOI : 10.5012/bkcs.2014.35.12.3583
This study evaluated a simple and useful route to the synthesis of mesoporous
microcapsules with a hollow macro-core structure. A hydrophilic precursor sol containing the surfactants in the hydrophobic solvents was deposited on PMMA polymer surfaces modified by non-thermal plasma to produce mesoporous shells after calcination. The surface of the PMMA polymer spheres was coated with
and CTAB to control the interfacial properties and promote the subsequent deposition of inorganic sols. These hollow type mesoporous
microcapsules could be applied as an efficient substrate for the immobilization of DNA oligonucleotides.
Heteroleptic Phosphorescent Iridium(III) Compound with Blue Emission for Potential Application to Organic Light-Emitting Diodes
Oh, Sihyun ; Jung, Narae ; Lee, Jongwon ; Kim, Jinho ; Park, Ki-Min ; Kang, Youngjin ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3590~3594
DOI : 10.5012/bkcs.2014.35.12.3590
Blue phosphorescent
, where dfpypy = 2',6'-difluoro-2,3'-bipyridine and mppy = 5-methyl-2-phenylpyridine, has been synthesized by newly developed effective method and its solid state structure and photoluminescent properties are investigated. The glass-transition and decomposition temperature of the compound appear at
, respectively. In a crystal packing structure, there are two kinds of intermolecular interactions such as hydrogen bonding (
) and edge-to-face
interaction. This compound emits bright blue phosphorescence with
and quantum efficiencies of 0.23 and 0.32 in fluid and the solid state. The emission band of the compound is red-shifted by 40 nm relative to homoleptic congener,
. The ancillary ligand in
has been found to significantly destabilize HOMO energy, compared to
, without significantly changing LUMO energy.
Investigation of Gold and Silver Nanoparticles as Acid-base pH Indicators and Their Transition pH Ranges
Jung, Byoung Gue ; Jo, Jihee ; Yu, Jin Won ; Lim, Jong Kuk ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3595~3600
DOI : 10.5012/bkcs.2014.35.12.3595
Monitoring of pH, especially under highly alkaline conditions, is necessary in various processes in the industrial, biotechnological, agricultural, and environmental fields. However, few pH indicators that can function at highly alkaline levels are available, and most of which are organic-based pH indicators. Several years ago, it was reported that gold nanoparticles prepared using trisodium citrate dihydrate were rapidly aggregated at pH values higher than ~12.7. A shift of surface plasmon resonance for such aggregated gold nanoparticles can be applied to pH indicators, allowing for the substitution of traditional organic-based pH indicators. The most important characteristic of pH indicators is the transition pH range. Herein, gold and silver nanoparticles are prepared using different reducing agents, and their transition pH ranges are examined. The results showed that all nanoparticles prepared in this study exhibit similar transition pH ranges spanning 11.9-13.0, regardless of the nanoparticle material, reducing agents, and concentration.
RGB Light Emissions from ZnSe Based Nanocrystals: ZnSe, ZnSe:Cu, and ZnSe:Mn
Song, Byungkwan ; Heo, Jeongho ; Hwang, Cheong-Soo ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3601~3608
DOI : 10.5012/bkcs.2014.35.12.3601
RGB light emitting ZnSe based nanocrystals: ZnSe (blue), ZnSe:Cu (green) and ZnSe:Mn (red) were synthesized by capping the surface of the nanocrystals with oleic acid. The obtained nanocrystal powders were characterized by using XRD, HR-TEM, ICP-AES, FT-IR, and FT-Raman spectroscopies. The optical properties were also measured by UV/Vis and photoluminescence (PL) spectroscopies. The PL spectra showed broad emission peaks at 471 nm (ZnSe), 530 nm (ZnSe:Cu) and 665 nm (ZnSe:Mn), with relative PL efficiencies in the range of 0.7% to 5.1% compared to a reference organic dye standard. The measured average particle sizes from the HR-TEM images for those three nanocrystals were 4.5 nm on average, which were also supported well by the Debye-Scherrer calculations. The elemental compositions of the ZnSe based nanocrystals were determined by ICP-AES analyses. Finally, the drawn CIE diagram showed the color coordinates of (0.15, 0.16) for ZnSe, (0.22, 0.57) for ZnSe:Cu, and (0.62, 0.35) for ZnSe:Mn respectively, which were fairly well matched to that of the RGB color standards.
Microwave Assisted Synthesis of 1,3,4-Oxadiazole/Thiohydantoin Hybrid Derivatives via Dehydrative Cycliztion of Semicarbazide
Yang, Seung-Ju ; Lee, Jae-Min ; Lee, Gee-Hyung ; Kim, NaYeon ; Kim, Yong-Sang ; Gong, Young-Dae ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3609~3617
DOI : 10.5012/bkcs.2014.35.12.3609
A series of compounds containing both 1,3,4-oxadiazole and thiohydantoin were synthesized as a promising scaffold for application in medicinal chemistry. The key step of the synthesis is a microwave-assisted cyclization of semicarbazides possessing a thiohydantoin moiety at one of the acyl termini using
as a dehydrating reagent. A wide range of semicarbazides were prepared through the substitution of hydrazides with an N-acylated thiohydantoin derived from the cyclization of the corresponding isothiocyanate with an amino acid and subsequent N-acylation of the resultant thiohydrantion. Consequently, the 58 number of 1,3,4-oxadiazole derivatives having a thiohydantoin substituent were prepared in good overall yields.
Expeditious Synthesis of Natural Benzofuran, Eupomatenoid-6 by Umpolung of α-Aminophosphonates
Damodar, Kongara ; Jun, Jong-Gab ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3618~3622
DOI : 10.5012/bkcs.2014.35.12.3618
Simple and practical synthesis of natural benzofuran derivative eupomatenoid-6 via Horner-Emmons type condensation as the key step is described. The umpolung property of aldehyde derivative,
-aminophosphonate was efficiently employed in this reaction.
-Aminophosphonate of anisaldehyde subjected to Horner-Emmons type condensation with 5-bromo-2-methoxybenzaldehyde to yield the deoxybenzoin, which was further methylated and then underwent tandem demethylation-cyclodehydration to afford the benzofuran scaffold in excellent yield. Finally Suzuki coupling with propenyl boronic acid afforded eupomatenoid-6 with an overall yield of 56.8%.
Synthesis and Biological Evaluation of Novel IM3829 (4-(2-Cyclohexylethoxy)aniline) Derivatives as Potent Radiosensitizers
Ahn, Jiyeon ; Nam, Ky-Youb ; Lee, Sae-Lo-Oom ; Ryu, Hwani ; Choi, Hyun Kyung ; Song, Jie-Young ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3623~3626
DOI : 10.5012/bkcs.2014.35.12.3623
Nuclear factor-erythroid 2-related factor 2 (Nrf2) regulates the expression of over 200 genes of antioxidant and phase II drug-metabolizing enzymes, and is highly expressed in non-small cell lung cancer (NSCLC). Nine derivatives of 4-(2-cyclohexylethoxy)aniline were designed. Our previous study demonstrated that IM3829 increases radiosensitivity of several lung cancer cells in vitro and in vivo. Here, biological effects of IM3829 derivatives (2a-2i) were evaluated. Compound 2g derivative effectively inhibits mRNA and protein expression of Nrf2 and HO-1. In addition, we observed over two fold enhancement in IR-induced cell death, from
, in H1299 cancer cell-line. Among the nine derivatives, compound 2g derivative exhibited the highest enhancement of radiosensitizing effect via inhibition of Nrf2 activity.
Effective α-Helix Stabilization via Hexenyl Propionate Cross-Link
Yoo, Jiyeon ; Kim, Young-Woo ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3627~3631
DOI : 10.5012/bkcs.2014.35.12.3627
In this study we examined two ester-containing cross-links, hex-2-enyl acetate and hex-2-enyl propionate, as new cross-linking systems for helix stabilization of short peptides. We demonstrated that these hexenyl ester cross-links can be readily installed via a ruthenium-mediated ring-closing metathesis reaction of L-aspartic acid 4-allyl ester or L-glutamic acid 5-allyl ester at position i and (S)-2-(4'-pentenyl)alanine at position i+4 using second generation Hoveyda-Grubbs catalyst at
. Between these two cross-links, we found that the hex-2-enyl propionate significantly stabilizes the
-helical conformations of short model peptides. The helix-stabilizing effects of the hex-2-enyl propionate tether appear to be as powerful as Verdine's i,i+4 all-hydrocarbon stapling system, which is one of the most widely used and the most potent helix-stabilizing cross-linking systems. Furthermore, the hex-2-enyl propionate bridge is reasonably robust against non-enzymatic hydrolytic cleavage at a physiological pH. While extended studies for probing its chemical scopes and biological applications are needed, we believe that this new helix-stabilizing system could serve as a useful chemical tool for understanding protein folding and designing conformationally-constrained peptide drugs.
De Novo Design and Their Antimicrobial Activity of Stapled Amphipathic Helices of Heptapeptides
Dinh, Thuy T.T. ; Kim, Do-Hee ; Lee, Bong-Jin ; Kim, Young-Woo ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3632~3636
DOI : 10.5012/bkcs.2014.35.12.3632
In this study we designed and synthesized several heptapeptides that are enforced to form an amphipathic helix using all-hydrocarbon stapling system and evaluated their antimicrobial and hemolytic activities. The antimicrobial activity showed clear structure-activity relationships, confirming the importance of helicity and amphipathicity. Some stapled heptapeptides displayed a moderate antimicrobial activity along with a low hemolytic activity. To our best knowledge, although not highly potent, these stapled peptides represent the shortest helical amphipathic antimicrobial peptides reported to date. The preliminary data obtained in this work would serve as a good starting point for further developing short analogs of amphipathic helical antimicrobial peptides.
Prediction of the Toxicity of Dimethylformamide, Methyl Ethyl Ketone, and Toluene Mixtures by QSAR Modeling
Kim, Ki-Woong ; Won, Yong Lim ; Hong, Mun Ki ; Jo, Jihoon ; Lee, Sung Kwang ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3637~3641
DOI : 10.5012/bkcs.2014.35.12.3637
In this study, we analyzed the toxicity of mixtures of dimethylformamide (DMF) and methyl ethyl ketone (MEK) or DMF and toluene (TOL) and predicted their toxicity using quantitative structure-activity relationships (QSAR). A QSAR model for single substances and mixtures was analyzed using multiple linear regression (MLR) by taking into account the statistical parameters between the observed and predicted
. After preprocessing, the best subsets of descriptors in the learning methods were determined using a 5-fold cross-validation method. Significant differences in physico-chemical properties such as boiling point (BP), specific gravity (SG), Reid vapor pressure (rVP), flash point (FP), low explosion limit (LEL), and octanol/water partition coefficient (Pow) were observed between the single substances and the mixtures. The
of the mixture of DMF and TOL was significantly lower than that of DMF. The mixture toxicity was directly related to the mixing ratio of TOL and MEK (MLR
equation =
), as well as to SG, VP, and LEL (MLR equation
). These results show that QSAR-based models can be used to quantitatively predict the toxicity of mixtures used in manufacturing industries.
A Ligand Exchange-based Fluorogenic Assay for Cartap Using Cu
-calcein Blue Complex
Shin, Yoon Ji ; Eom, Min Sik ; Kang, Seungyoon ; Han, Min Su ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3642~3644
DOI : 10.5012/bkcs.2014.35.12.3642
Synthesis of 8-Triazolochrysin Analogs Through Click Reaction
Luo, Jun ; Park, Haeil ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3645~3646
DOI : 10.5012/bkcs.2014.35.12.3645
Synthesis and Biological Evaluation of Kojic acid Derivatives as Tyrosinase Inhibitors
Choi, Yeong Jin ; Rho, Ho Sik ; Baek, Heung Soo ; Hong, Yong Deog ; Joo, Yung Hyup ; Shin, Song Seok ; Kim, Ji Man ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3647~3650
DOI : 10.5012/bkcs.2014.35.12.3647
Spiro-β-lactams Synthesized from Imines Derived from 8-Azabicyclo[3.2.1]octan-3-ones
Song, Ju-Hyun ; Kwon, Yeon-Geun ; Lee, Hyun-Ok ; Jung, Dai-Il ; Hahn, Jung-Tai ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3651~3654
DOI : 10.5012/bkcs.2014.35.12.3651
NMR Exchange Study of Z-DNA Duplexes Induced by the Zα Domain of Human ADAR1 Containing Mutation on the β-Hairpin
Lee, Ae-Ree ; Jeong, Minjee ; Yoo, Jin-Hyun ; Choi, Yong-Geun ; Kim, Hee-Eun ; Lee, Joon-Hwa ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3655~3657
DOI : 10.5012/bkcs.2014.35.12.3655
Crystal Structure and Physical Properties of Silver(I) Coordination Polymer with Helical Looped-Chain Topology
Ju, Huiyeong ; Lee, Eunji ; Moon, Suk-Hee ; Lee, Shim Sung ; Park, Ki-Min ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3658~3660
DOI : 10.5012/bkcs.2014.35.12.3658
Inhibition of IL-6-induced STAT3 Activation by Pimaradienoic Acid from Aralia continentalis
Oh, Tae-Seok ; Bae, Eun Young ; Kim, Mi Hwa ; Oh, Hyun-Mee ; Lee, Seung Woong ; Kim, Chang-Ho ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3661~3664
DOI : 10.5012/bkcs.2014.35.12.3661
A New Amaryllidaceae Alkaloid from the Bulbs of Lycoris radiata
Lee, Ji Young ; Cha, Mi-Ran ; Lee, Ji Eun ; Kim, Jinhee ; Cho, Heeyeong ; Park, Woo Kyu ; Choi, Sang Un ; Ryu, Shi Yong ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3665~3667
DOI : 10.5012/bkcs.2014.35.12.3665
Coumarin-Based Organogel Formed at Different Solvent Compositions and Their Luminescent Properties
Jung, Jin Hwan ; Lee, Seon-Ae ; Lee, Ji Ha ; Choi, Heekyoung ; Park, Jaehyeon ; Kwon, Ki-Young ; Choi, Myong Yong ; Jung, Jong Hwa ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3668~3670
DOI : 10.5012/bkcs.2014.35.12.3668
Arginine- or Lysine-catalyzed Michael Addition of Nitromethane to α,β-Unsaturated Ketones in Aqueous Media
Park, Seongsoon ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3671~3674
DOI : 10.5012/bkcs.2014.35.12.3671
Regioselective Click Chemistry for Construction of Arylpiperazinyl 1,2,3-Triazole Derivative Libraries as Dopamine D
Receptor Ligands
Kwak, Ju Myung ; Moon, Ji Su ; Seo, Sangei ; Choi, Jea I ; Sampath, Vasu ; Lee, Hee-Yoon ; Koh, Hun Yeong ;
Bulletin of the Korean Chemical Society, volume 35, issue 12, 2014, Pages 3675~3678
DOI : 10.5012/bkcs.2014.35.12.3675
Related Links
OAK Central
Contact Us


text:
Thursday, June 12, 2008
Firehouse subs
Izzie taking a cat nap.
Mom came over this morning and hung out withe the girls and I. There seems to be a look but don't touch rule going on lately. Both girls are going through major separation anxiety. They will only let John or I hold them without immediately crying. One thing that does seem to work is if the other person holds them face out where they can't see who is holding them. I wish we had a third person to video tape us. Mom and I were sitting on the floor each with a girl in front of us. We were playing patty-cake with the girls. It was SO cute. Maddie was giggling so hard!
We went to a new sub place called Firehouse subs near Firewheel Mall. I thought it was a pretty decent sub sandwich. Similar to Quizno's in that you order a sandwich off the menu and the make it for you. Not like Subway, where it is more "cafeteria" style and you tell them exactly what you want. It's in the same shopping center as Half Price Books, so I walked the girls over and mom drove. (It was easier to walk ALL the way across the parking lot than to load the girls up and unload again!) But mom drove so we wouldn't have to walk ALL the way back!
Now the girls are down for a much needed nap since going out to lunch delayed by a couple of hours.
No comments:
Subscribe to: Post Comments (Atom)

subset: commoncrawl


text:
Special Price
These classic double d'orsay ballet flats are given a modern twist with an interesting design element. The pattern on the upper creates a unique silhouette. Made in genuine leather.
Final sale - no returns or exchanges accepted.
Sample content
We deliver products within 2-4 weeks from the day the order is placed. Domestic shipping is free and International shipping is available for $20.00.
For more details, please refer to our Shipping Information page.
Your satisfaction is our priority. If something is not right, please let us know how we can help you. If you wish to return the item, you can refer to our Exchange & Returns policy.


text:
Hollywood produces its on-screen heroes to take crucial steps to achieve their goals, and often against all odds. These same principles can be applied to anything you are seeking to accomplish or improve in your own story or life. Recognizing and following these proven and tested, cinematic stages of the hero's transformation will help you exponentially upgrade your process, mindset, awareness, and ultimately fine-tune your purpose.
"Produce Yourself" compares the journey in all of us with that of our favorite heroes from movies and television. From developing better habits to improving finances; from starting a business to learning real estate strategies; from improving relationships to co-worker dynamics; from making days more effectual and distraction-free to harnessing the power of mindset; from improving health and diet to accessing the power of play; this book helps find and multiply your Why - why you are on your current journey and how to optimize it.
If you're an entrepreneur, self-employed, or simply want a better, more successful and happy life, this book is for you. It's for anyone who wants to understand the journey of a hero and apply the same formula to their own life.
Using scholar Joseph Campbell and writer Christopher Vogler's iconic stages of the Hero's Journey, Terence Michael exposes his own Hollywood career to share lessons and principles you can apply to your own process and approach.
What is your story? Are you the hero? Or just a supporting character? You are the producer of YOU. This book helps you find the tools to change, upgrade, or completely rewrite your story. You can PRODUCE YOURSELF just like a Hollywood producer produces a hero, just by following the proven and time-tested steps.
Read Chapter 1 on Medium
Terence Michael has collaborated with many actors, musicians, athletes, comedians, and brands in his films and TV shows, including:
Actors: Scarlett Johansson, Ben Stiller, Sarah Jessica Parker, Vera Farmiga, Jeffrey Tambor, Tea Leoni, Tom Sizemore, Katherine Heigl, Peter Dinklage, Giovanni Ribisi, Cuba Gooding, Jr., Patrick Dempsey, Jaime Pressly, Mia Kirshner, Michael McKean, Britt Robertson, Oliver Hudson, Emmanuelle Chriqui, Jonathan Tucker, Nora Dunn, Skeet Ulrich, Cheryl Ladd, Alan King, Elizabeth Reaser, Megan Mullaly, Jennifer Morrison, Erin Bartlett, Jesse Bradford, Adam Goldberg, David Krumholtz, James Tupper, Jill Clayburgh, Eric Szmanda, Eric Mabius, Eric Schaeffer, and the lates Alan King, Jill Clayburgh, John Heard
Comedians: Adam Carolla, Tom Green, Chris Hardwick, Flula Borg, Ken Marino, Alonzo Bodden
Athletes: Football's Vince Papale, basketball's Rick Barry, motocross' James Stewart, Ryan Dungey, Todd Potter, and the Metal Mulisha team, skateboarding's Tony Hawk, Buckey Lasek, Jason Ellis and snowboarding's Shawn White, triathlete's Wendy Ingraham and Chris Legh
Musicians: Jill Sobule, Blink 182, Foxy Brown, Usher, Vanessa Carlton
Hosts/Authors: Amanda De Cadenet, Karla Cavalli
Brands: RedBull, Degree, Monster, Playboy, Jabbawockeez, The Golden Nugget, Joe's Crab Shack, Oakley, and the Duck Dynasty family.
Paper/Audio/Ebook at these places (click logos)


text:
I thought for sure I would get lost on the subway my first time. Luckily, I managed to catch all the right trains and made my way to Chelsea.
Now, I'm refueling in a coffee shop and thinking of checking out a couple art galleries before making my way to Central Park.
40.741099 -74.005179


text:
This was my second week heading up to the JBL to check it out. I was just coming to take pictures of Moneygang and support The Game, but it ends up he brought a surprise player – Chris Brown. The lighting in that gym is really bad – but I did my best to get some good pictures to share with you all.
Please be respectful with these photos – If you re-post them, please leave my watermark on them.
Click on the photo above to see all the pictures from the game!


text:
Fantech FRD Inline Rectangular Low Profile Duct Fans
The compact housing design of the FRD Series allows for installation directly within rectangular ductwork (ranging from 12"x 6" ducts to 24"x 14" ducts), without the need for large elbows or transitional sections. FRD Series fans are simple to install. Simply mount the fan at any angle in any point in the ductwork. The motor is mounted on a hinged door.
- Hinged door for service access
- Terminal box with prewired electrical strip
- 100% speed controllable
- Airstream temperatures of up to 140° F
- Three-year warranty
- UL Listed and AMCA Certified
*** $1 shipping on Fantech orders over $79. Not valid for Canada, HI & AK (reduced ship rates available). We price match! ***
Related Products
Fantech FSD Series Inline Square Duct Fans
Galvanized sheet metal housing. Direct drive external rotor motorized impeller assembly. Square duct-mate type flanged connection collars.
Fantech FKD Series Inline Centrifugal Fans
Galvanized sheet metal housing. Direct drive external rotor motorized impeller assembly. Mixed flow (diagonal) wheel. Installs in any orientation.
why buy from us?
We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.
Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.


text:
Shehu Sani takes El-Rufai to the cleaners over his suspension from APC
Following his indefinite suspension from the All Progressives Congress, APC, by the Kaduna State chapter of the party, Senator Shehu Sani has come hard on the Governor of Kaduna State, Malam Nasir El-Rufai, who he accused of masterminding his ousting from the party. Sani, who is currently representing the people of Kaduna Central Senatorial District […]
Shehu Sani takes El-Rufai to the cleaners over his suspension from APC
Do you have something awesome to share with the world? Click here to share
Do you ever have any question about anything you wish to ask and get answer? Click here to ask
Follow us on twitter @NigeriaTodayNG
This post was syndicated from Daily Post Nigeria. Click here to read the full text on the original website.
Be the First to Comment!


text:
Animal Feed Antioxidants Market Analysis and Segment Forecasts to 2022
The global animal feed antioxidants market is expected to reach USD 256.9 Million by 2022, according to a new report by Grand View Research, Inc. Increasing importance of animal protein over plant-based counterparts is expected to play a crucial role in driving market growth.
The government of China announced the "Guideline for Beef Industry Development Towards 2020" in September 2013, aimed at increasing domestic beef production capacity from 6.3 million tons in 2013 to 7.86 million tons by 2020. This move is expected to open new avenues for animal feed antioxidants market over the next seven years.
Natural antioxidants reported revenue of over USD 80 million in 2014. Rising importance of tocopherols as a source of vitamin E in countries of European Union, particularly Germany and UK, amid regulatory support for its inclusion in feed industry will have a significant impact on natural product forms in the near future.
Europe animal feed antioxidants market, by livestock, 2012-2022, (Tons)
View summary of "Animal Feed Antioxidants Market Analysis Report" @ http://www.grandviewresearch.com/industry-analysis/animal-feed-antioxidants-market
Further key findings from the report suggest:
- Global animal feed antioxidants demand was 58,202.9 tons in 2014 and is expected to grow at a CAGR of 3.7% from 2015 to 2022
- Demand for animal feed antioxidants was highest in poultry accounting for over 30% of the global volume share in 2014. Antioxidants are added to poultry feed to enhance the vitamin content and reduce the number of free radicals. Rising consumption of poultry products is expected to drive antioxidants market.
- Butylated Hydroxyanisole (BHA) was the majorly used synthetic antioxidant, accounting for over 13 kilo tons in 2014. It is used as a supplement in poultry on account of its property as a free radical scavenging agent.
Animal feed antioxidants demand in aquaculture exceeded four kilo tons in 2014. Addition of antioxidants to feed helps in oxidizing fat in fish, which conserves vitamins and some nutritional content within the meat.
- Kemin Industries utilizes PARAdigmOX technology in formulation of its antioxidant product, Blue liquid, for aquaculture applications. The technology is based on ternary solvent system, which provides protection against oxidation in oil and interfaces of fish body.
- In July 2011, the government of Saudi Arabia announced a revised imported feed subsidy list comprising 31 feed ingredients including corn, soybean meal, and sorghum. Aforementioned subsidy allocation towards procurement of feed ingredients in Saudi Arabia is expected to open new opportunities for manufacturers to invest in the region.
- Global animal feed antioxidants industry was dominated by BASF, DSM, ADM, and Novozymes in 2014. These four companies accounted for over one-fourth of global volume of production in 2014. These market players have also integrated their business from raw material supply to manufacturing as well as distribution of antioxidants.
Request for free sample of "Animal Feed Antioxidants Market Analysis Report" @ http://www.grandviewresearch.com/industry-analysis/animal-feed-antioxidants-market/request
About Grand View Research
Grand View Research, Inc. is a U.S. based market research and consulting company, registered in the State of California and headquartered in San Francisco. The company provides syndicated research reports, customized research reports, and consulting services. To help clients make informed business decisions, the company offers market intelligence studies ensuring relevant and fact-based research across a range of industries including technology, chemicals, materials, healthcare and energy.


text:
And the debate continues to rage.
The best reason to gradually reduce fossil fuel consumption is to stave off a sudden collapse of the world' economy.
The second best reason is to leverage economic power away from unstable dictatorships who support radical Islamists and totalitarian rule.
The least viable reason: Pretending that mankind can control the climate by managing fossil fuel use. That's a fool's errand.
"FATIH BIROL, the chief economist of the International Energy Agency (IEA), believes that if no big new discoveries are made, "the output of conventional oil will peak in 2020 if oil demand grows on a business-as-usual basis." Coming from the band of geologists and former oil-industry hands who believe that the world is facing an imminent shortage of oil, this would be unremarkable. But coming from the IEA, the source of closely watched annual predictions about world energy markets, it is a new and striking claim.
Despite repeated downward revisions in recent years in its forecasts of global oil supply in 2030, the IEA has not until now committed itself to a firm prediction for when oil supplies might cease to grow. Its latest energy outlook, released last month, says only that conventional oil (as opposed to hard-to-extract sources like Canada's tar sands) is "projected to reach a plateau sometime before" 2030."


text:
Mike Grella, a former Duke University player, has been offered a contract to play with Leeds United in England. After a successful two week trial, sources revealed to Soccer By Ives that the 22 year old is close to finalizing the details.
Toronto FC used a 34th overall pick on Grella recently in the SuperDraft even though he had made clear indications he wanted to play in Europe.


text:
Watch Sony TV Live Streaming
Sony Entertainment Television or SET, is a Hindi-language based general entertainment television channel in India. It was launched in October 1995 and is owned by Multi Screen Media Pvt. Ltd. (MSM, formerly SET India Private Limited), a subsidiary of Sony Pictures Entertainment. Sony has gained a lot of popularity from shows like C.I.D. and Kaun Banega Crorepati.
More Information Regarding Sony TV Click Here


text:
Conference Scholarship
The Ruth Harris Professional Development Award has been made possible by a grant from the Ruth and Louis Harris Family Foundation.
Purpose: The purpose of the Award is to facilitate the continuing professional development of Academy members as Orton-Gillingham practitioners. It does this by making it possible for qualified members to attend Academy conferences. The Award is to assist the qualifying Academy member in defraying costs associated with travel, accommodations, and conference fees.
Award Criteria: To be considered for the professional development award, an Academy member must be nominated by a Fellow in a one page letter of support recommending the nominee.
A nominee is required to submit The Ruth Harris Professional Development Award Form (print from the link below), together with a one page resume and a short statement as to why you should be considered for the award.
Recipients of awards will be notified by mail, and will be reimbursed upon submission of vouchered expenses. The amount of the award may vary, from year to year. Travel Awards will be available for the Academy Conference in Charlotte, North Carolina, April 13 and 14, 2018. Applications must be into the Academy office no later than March 9, 2018. Notification will be emailed to the applicants by March 16, 2018.
Donations to this fund are welcomed. Contributions should be made out to the AOGPE, with a note specifying the Ruth Harris Professional Development Fund.
Click Here to Download the Harris Application Charlotte 2018


text:
The Long March: A Reform Agenda for Latin America and the Caribbean in the Next Decade (Latin America and Caribbean Studies) (Spanish Edition)
There is now a general awareness among policymakers that additional reforms need to be undertaken if Latin American and Caribbean (LAC) economies are to grow at more than 6 percent a year the growth rate required to reduce the number of people living in poverty in the region. This report offers a proposal for the discussion of such reforms. Chapter one identifies items in the reform agenda required to consolidate macroeconomic stability in the region, a necessary condition for sustaining high rates of growth. Chapters two and three addresses the additional structural reforms needed to accelerate growth in the medium and long term. Chapter four focuses on policies that may broaden the reach of economic growth in order to confront the challenge of poverty reduction in the LAC region.
Please visit Help Page for Questions
regarding ISBN / ISBN-10 / ISBN10, ISBN-13 / ISBN13, EAN / EAN-13, and Amazon
Home | ISBN Directory | Affiliate
Program | Contact
Copyright © 2003-2014 AllDiscountBooks.net All rights reserved.


text:
Hi, SharePoint 2010 and I have created a number of site columns of type Yes/No (check box). I have created a number of content types and used these column types but when I try to change the column setting within the content type to "Required, Optional
or Hidden" I am unable as the settings are greyed out and I am unable to change them.
Even in the Parent content type I am unable to change this particular type of column value so it isn't an inheritence setting as it's the parent content type. Am I doing something wrong?
Note - I am recreating a list from a SharePoint 2007 site and I am able to change the setting here, have i configured this incorrectly or was this something that could be done in SP 2007 but not SP 2010.
Thanks fo any help.
View Complete Post
Am reading an XML from web service and storing in a dataset.
then in write to a DataTable as follows
DataTable dtResult1 = dsSearch.Tables["RESULTSET"];
DataTable dtHIT = dsSearch.Tables["HIT"];
DataTable dtField = dsSearch.Tables["FIELD"];
The issue is in the DataTable dtField i can only see 3 columns FieldID,Name,HIT_ID
The corresponding values in the dataTable looks like this for the corresponding fileds
I am unable to get the Field Name values 1,8799f4646b6ed9acde142581a84f75a6 ,234B5F5F-F247-4EB6-9E39-A7B64C7FE1BD,Yes...etc
What would be the cause for this...Any Help
Below is the structure of the XML-
<FIELD NAME="rank">1</FIELD>
<FIELD NAME="internalid">8799f4646b6ed9acde142581a84f75a6 </FIELD>
<FIELD NAME="contentid">234B5F5F-F247-4EB6-9E39-A7B64C7FE1BD</FIELD>
<FIELD NAME="contentids" />
<FIELD NAME="collection&
Our search is not working. The crawl log indicates following error: "Access is denied. Check that the Default Content Access Account has access to this content, or add a crawl rule to crawl this content. (The item was deleted because it was either not found or the crawler was denied access to it.)".
If I check the event viewer, it indicates following error: "Login failed for user 'NT AUTHORITY\NETWORK SERVICE'. [CLIENT: <local machine>]"
My default content access account is another one than this NT AUTHORITY\NETWORK SERVICE account. The content access account password is correct. Apparently this content access account is translated to the NETWORK SERVICE account upon a crawl. And this network service account doesn't has the appropriate rights on database level. How can I fix this?
In my webapp, I have a DropDownList_OnSelectedIndexChanged that assigns values for a number of <asp:textbox'es depending on which entry is selected...
public void ModifyProjectIDBox_SelectedIndexChanged(object sender, EventArgs e)
int tempJobID = Get_Selected_Report();
dbCommandString = "SELECT Name, Address, State, Awarded, StartDate, EndDate, HomeLocal FROM dbo.ProjectInfo WHERE ProjID = " + tempJobID;
dbComm.CommandText = dbCommandString;
dbReader = dbComm.ExecuteReader();
ModifyProjectNameBox.Text = dbReader[0].ToString();
ModifyProjectAddrBox.Text = dbReader[1].ToString();
ModifyProjectStateBox.Text = dbReader[2].ToString();
I am working with SharePoint Server 2010 Beta 2, Visual Studio 2010 Ultimate RC and SharePoint Designer 2010 Beta.I built a custom Content Type based on the Item type with a few custom site columns. I also have built a custom Sequential Workflow using Visual Studio 2010. This is a relatively simple workflow that creates a task, waits for the task to complete, sets the workflow to complete. I am able to deploy this workflow to the site collection through VS 2010. The problem I have is that when I try to associate my custom Content Type with my custom workflow, that workflow is not listed in the workflow templates to select. There are only the OOTB SharePoint workflows to choose. However, if I create a list and associate a workflow to that list, my custom workflow is listed in the workflow template list. This makes sense since at the start of building a custom workflow in VS2010, one of the first questions is whether the workflow is a Site or a List workflow and I selected List. I did a little research and found some who wrote that Reusable Workflows may be attached to Content Types. In VS2010, there is no option to build a Reusable Workflow. That is only possible in SharePoint Designer. However, it is possible to import a SPD workflow into VS, so I tried that. Imported the WSP into VS201
I have created an Approval Workflow for a Document Library and assigned it as the Default Content Approval Workflow (in the UI:ÃÂ Start this workflow to approve publishing a major version of an item).If, through the SharePoint web interface, I "Check-In" and selectÃÂ a Major Version (e.g. 1.0) or I "Publish a Major Version", this workflow is initiated as one would expect.However, if through Microsoft Office 2007 (e.g. Word) I Check-In the document as a Major Version (e.g. 1.0) it does NOT initiate the workflow. It DOES set the Document Status to Pending but does NOT initiate the Approval workflow. It then becomes necessary to "Cancel [the] Approval" in the GUI and re-Publish it in order for the workflow to be initiated. This is crazy! Microsoft have achieved fantastic results with their Office integration, why hasn't the initiation of the Default Content Approval Workflow been included?Can anybody replicate this? What is the correct channel for reporting this to Microsoft? Has anybody else discovered this and found a solution?I can't believe SharePoint has been used as a Document Management System and nobody else has discovered this flaw?
SharePoint farm is as below. 1 SQL, 1 WFE, 1 Application server. SQL 2005 and SharePoint 2007 with SP1.
SharePoint portal is working fine from 1 year, suddenly from today morning in the WFE eventvwr we are getting 27745, 3355 and 5586 event id errors. Site also giving error saying "unable to connect the content database". This is repeating for 10
to 15 min.
when ever these errors occur in eventvwr sharepoint will not work.
Please suggest on this issue.
waiting for MS replies..
I have a workflow automation to copy a document from 1 site to the other . It works fine using the SPFile object. My concern
is the doc that is being copied from is a content type called Content1. Now how do I copy the content type values accross to the new area after the arrow sign ?
// Source Site
SPSite SourceSiteSP = new SPSite(SourceSite);
SPWeb web = SourceSiteSP.OpenWeb();
SPWeb SourceWeb = SourceSiteSP.OpenWeb();
SourceWeb.AllowUnsafeUpdates = true;
SPList lib1 = (SPDocumentLibrary)SourceWeb.Lists[subSite];
lib1.ContentTypesEnabled = true;
// Destination Site
SPSite DestinationSiteSP = new SPSite(DestinationSite);
SharePoint 2010 provides some new features on Calander views (of the OOTB calendar list). You can select a portion of the day and click "new event" directly in the calendar. This will take the selected startdate/time and enddate/time and prefill this in
the newform. When you enable Group Planning on the calendar it will also take the user (of the selected calendar) and prefill it in the newform as well. Very nice.
I have created multiple content types on the OOTB calendar and would like the give the user a intinuitive UI of selecting the correct content type. The idea is as follows. The user selects a portion of the day, and click "new event" directly from the
calendar. The user is taken to a custom page where he can select the desired content type and is then taken to the new form of the selected content type.
Now I'd like to take the values selected by the user (eventdate, enddate and user) and use them to create links to the newforms of the different content types. In Moss 2007 the selected values (startdate and starttime) were passed with the Querystring, which
prefilled the newform. But in SharePoint 2010 these values are passed in some other way (javascript?)
How can i get these values (eventdate, enddate and user) and create multiple links with these values, which will pass them to a newform of the
I am unable to edit document in SharePoint, and hit error
with a message "The document could not be opened for editing. A Windows SharePoint Services compatible application could not be found to edit the document".
When I
try to check out a document it hits error
with the message "object reference not set to an instance of an object".
Do you have any idea on these issues? As in the development server, I am
able to check out and edit documents.
I have a document library with two content types (1. Document and 2. custom). When i try to change the content type from document to custom it is not allowing me to change.
Actions-->Edit in datasheet -->Selected content type column--> clicked dropdown--> changing to custom (Once i click to custom after that it is automatically changing back to document)
I have a problem with Audience Targeting Property in Content Editor Web Part.
When i am adding the content editor web part using web browser it is not showing the Audience Targeting Property of Content Editor Web Part.
I tried also with SharePoint 2010 Designer by adding <IsIncludedFilter>;;;;SuperAdmins</IsIncludedFilter> to Content Editor Web Part but still it is not working.
The mail functionality here is Inserted Content Editor Web part should be accessible to "SuperAdmins" Group. But it is not working.
Please help me
When I execute, "l["Category"].ToString();"
and the field is a lookup field it returns, "Microsoft.SharePoint.Client.FieldLookupValue[]", on the other hand when I execute "l["Description"].ToString();"
which is a normal string field I get the string(multiline) value back, any idea what could be going on here? I have tried, static/internal/displayname all with the same result(lol moment,
Hall of Fame Twitter Terms of Service Privacy Policy Contact Us Archives Tell A Friend


text:
Anyone who has a Splice Site Mutation.
Members: 3
Latest Activity: Aug 21, 2012
This group does not have any discussions yet.
Welcome to my group. My son has a splice site mutation. I met a family at the conference in Baltimore that has a splice site mutation. I created this group for not only me/my son but for anyone else who has a splice site mutation to have a place to talk to oneanother. Hope this group is helpful. I don't proclaim to have answers I just want a group where we could all come together & talk about things that are on our mind. God Bless, Suzanne
© 2018 Created by PPMD. Powered by
Badges | Report an Issue | Privacy Policy | Terms of Service


text:
Call Us: 1-800-899-4766
Visit the Career Section for Current Openings
Everyone knows the world is evolving from physical to digital documents, but which document should you convert to yield the greatest benefits from a document lifecycle point of view? And what is the most cost-effective and efficient route? Get a Free Quote »
Document Conversion has a reputation for being expensive and difficult to cost-justify. The numbers just don't work when you convert documents to digital purely to avoid storage costs when you will view only 1% of the documents that are converted. Yet, the conversion from paper to digital is critical in business today to remain efficient and competitive.
Document Conversion Services from Iron Mountain can help you understand and realize a new digital imaging program that will streamline your organization's ability to store, access and manage documents, while cutting cost and stress. You can implement a new digital imaging program or redesign your current one. Cost control is achieved by scanning only certain documents as needed.
By implementing Document Conversion, you gain the advantages of improved chain of custody, a single vendor relationship and a more cost-effective records management program.


text: [PornstarsLikeItBig] Nicole Aniston (XXX-Men: Shagging the Shapeshifter (XXX Parody) / 05.28.2016) The sexy Mystique (Nicole Aniston) does battle with brave X-Men Wolverine (Charles Dera) and Cyclops (Xander Corvus) before taking a double dose of mutant cock in this XXX Parody. Related posts: No related posts. Post navigation ← Previous Next → Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website


text:
Hey all,
I've been going through the job search process of late, I am new to UX and come from a BPI/Marketing background and love the research / conceptual side of UX, but have little experience in the UI / Dev world. I've been pretty disheartened to find most jobs in this arena are more UI (or Dev) than they are UX and recruiters seem to pass me along for these positions even though my CV (resume) doesnt mention UI / Dev.
I guess most recruiters see UX and think of it as a continuation of UI/dev (many companies are also failing to make a distinction between those roles) - it got me thinking about how broad the term UX is and how to adequately explain what type of UXer you are / want to be.
I created www.myuxresume.com - its a free tool that lets you self-score yourself across 14 different UX skillsets. I would love to get your on the concept, and please… I would love to hear from you if you have experienced this as a problem yourself.
We were just talking about myuxresume.com in our weekly catch up meeting yesterday. It looks like a really interesting tool.
Your dilemma is an interesting one. We've had a couple of discussions around lines of communication with UX recruiters lately. There seems to be a real disconnect. Check out the careers forum for those convos.
Oh, and welcome! Great to have you here.
Nice work, John. We created something similar last year, which we called the UX Sundial.


text:
She wants him in dirty ways that she has no problem articulating. She...
Sandra is amateur exhibitionist girl. I asked her if she want to shake her naked sporty body for some money. And she even sucked my hard cock.
Missy does who she wants, when she wants, wherever she wants. Its...
Katie wants money or cock, and she gets cock
She Wants Big Cock and She Wants It Now
She gets payed and she sucks a fat erect cock
she has a fuck and she rides the fat cock
She needed a fat cock in her ass and she got the biggest one
She can beg for pain or she can beg for humiliation it is a decision she does not want to make and in the end she will get both anyway
Kamila is hungry, but she doesn`t want food, this teen wants a hard...
she posted til she get what she want
RealBlackExposed She Needs Money So She Works a BBC for It
RealBlackExposed - She Needs Money So She Works a BBC for It
Assparade returns with a sexy Puerto Rican booty. Mercedes Carrera is new to BangBros and damn! She has a juicy fat ass. Fat in a great way. She put o
Naughty hottie seems to want money after she gets fucked
Tuta knows what she wants, its Terrence and she wants him right now....
She Needs A Lift To Back Home And She Doesn't Have Enough Money
porngoldeu presents Elaina was taking a stroll through her garden when she came upon her boyfriends big long cock Of course she couldnt say no
Daddys girl wants it black and she gets what she wants
She wants a fuck so she gets one
blonde bitch has a fat one she just wants to fuck
she has a hot sex toy she wants to use
Eden Adams is a whore! She wants the fuck! Not the money!
Kelly Leigh is a no-nonsense woman, so when she drops the drinks she...
TrafficHolder.com - Buy and Sell Adult Traffic|Trafficshop.com - Let your business grow|Contact Us|Webmaster
All content, including images, text, graphics, video and audio content contained in the website is protected under the laws of copyright, owned or under license to company or its designees,and represents proprietary and valuable intellectual property.
Contact Webmaster 18 U.S.C. 2257 Record-Keeping Requirements Compliance Statement
Powered by Stream Rotator


text:
A tentative deal has been reached that could end the nine-week strike at Canadian Hearing Society.
Tentative settlement could end 9-week Hearing Society strike
A tentative deal has been reached that could end the nine-week strike at the Canadian Hearing Society.
Canadian Union of Public Employees Local 2073 says no details of the deal will be released until the 227 workers have a chance to review it and vote. That ratification vote is scheduled for Friday. If both sides approve the deal, the workers — including 11 in Windsor — could be back on the job by Monday.
The deal was reached after a third-party mediator, John Stout, worked with the two sides for more than four days. Local president Stacey Connor credited the workers' resolve, holding "rock-solid" on the picket lines for nine weeks.
"Because these workers were so tough, we were finally able to move this employer into compromise mode, with Mr. Stout's help," he said. "It should not have taken nine weeks, but here we are."
The strike affected more than 36,000 people who rely on the society for myriad services, including counselling and audiology services.


text:
I am still trying to catch up so I am just posting some of my favorite pictures from January. Georgia's personality really started to shine in month 4. She is such a sweet baby!!
Happy New Year!
January 3, 2013- 4 Months Old!!!!
Visiting daddy at work-thanks for the cute hat JoAnn!
Ready for church
First time in the Bumbo...and not quite sure what to think.
Learning to push up for the first time!
Spending time with Grandpa Bill (One of her CA Grandparents)
January was a great month. Georgia was still not sleeping all the way through the night but would usually only get up once to feed. She is a happy baby most of the time!!


text:
My brain feels fried. I feel it longing to go numb and I fear numb more than I fear pain. I feel like I am on overdrive, stuck in four wheel mode, working it too hard, and it is getting tougher to decipher things clearly lately. I force myself to write in the hopes of dislodging it and sorting a few things out. To lay the words on paper, or in cyberspace, to get them out of my head. To leave them here to come back to if ever need be, even for no other reason than a way to remind myself of the fingerprints of God throughout this journey of Trent's death. To free my brain and lay my burdens down at the foot of the cross. The weight lessens with every word that is released.
I miss the first days after Trent died. I miss the absolute reassurance of God's promises. The freshness of them and the great hope in them. Somewhere along the line in the past near three months the cares of this world have snuck in. My flesh and my desires have overruled. My longings have become greater than the word of God. My heart has deceived me yet again. "Set me free from my prison, Lord, that I may praise your name" I cry as the psalmist cries. Let the praise be again from my lips, from my heart, from my whole being.
But I replace praise with wishing. Wishing Trent would just come down those steps again this morning. Wishing it really was his voice that I heard while I was digging in the freezer in the garage. Wishing he could see the barn work that we dreamed about. Wishing I could care that the garden is almost planted. Wishing that he could be the one trapping that pesky gopher in the yard instead of waiting for Rob to do it. Wishing I could feel him in my arms again. Wishing I would hold my other children tighter rather than being a zombie mother. Wishing I wouldn't fight with my husband when I really just want to cry with him and have him hold me while I do. Wishing I could be brave enough to just let the tears flow when they need to flow. Wishing I would draw near to God again and really trust His sovereignty and be content to patiently wait.
Out of the depths I cry to you, O Lord; O Lord, hear my voice. Let your ears be attentive to my cry for mercy. I wait for the Lord, my soul waits, and in His word I put my hope. My soul waits for the Lord more than watchmen wait for the morning. O Terri, put your hope in the Lord, for with the Lord is unfailing love and with him is full redemption. God did redeem Trent from all of his sins and has only done what pleases Him and answered all my prayers for my son's salvation in doing it.
(My rendition of Psalm 130 this morning.)
Monday, May 16, 2011
I Wish, I Wish, I Wish
2 comments:
- cmarie said...
I hear you so loud and clear with my heart dear blog friend. I wish I could give you a hug and help you out with a few things today!
- May 16, 2011 at 9:00 AM
- Brenda said...
My heart feels you, Terri. I feel like I've stood in the place of searching you were in when you wrote these words.... the circumstances were different ... but I felt the foggy headed search for what I knew was the truth, but couldn't quite find. When the fog cleared the sweet assurance of God's love and promises was even more precious and enveloping than before. Keep holding on and keep pushing toward God's truths. I pray that the Lord wraps Himself around you today!
- May 16, 2011 at 4:32 PM
Subscribe to: Post Comments (Atom)


text:
I enjoyed Professor Olson's engaging lecture on National Defense and Global Security. It was interesting to see how people voted about various scenarios that lurk in the shadows of national defense. Making decisions that involve people's lives is a grave challenge that will weigh upon anyone's heart. Believing in your decision for the sake of protecting one's fellow citizens is something none of us have ever faced. Professor Olson has made those calls and I have immense respect for his service as well as the many others to whom we can't place a face or a name. However, on many issues of national defense I would most likely disagree with Professor Olson's opinion and that of the majority. My disagreement stems from many convictions some personal, some spiritual and some economical.
From one perspective, I view the issue of national defense through a lens of economical pragmatism that I is similar to the President Clinton's era. War and national defense are expensive. How expensive? It's not easy to nail down the exact figure but from various sources** the 2012 budget for national defense can be estimated between 800 million - 1 TRILLION dollars without adding in the budget for "covert black-budget operations".
1 TRILLION dollars.
Now I want you to think about this. You are married with two kids. Your family earns the median US household income of $50,000 usd. Your family is burdened with choice. You can either contribute $12,000 dollars per year to pay for the national defense budget or contribute that money to free university education for every child in the country.
War costs people. The average citizen must contribute $3,000 plus interest on the money borrowed to support the national defense budget. However, most young adults are graduating college with historic debt because they can't afford the phenomenal costs of college. How many people do you know have borrowed money to further their education? There are siginifcant opportunity costs to think about when one talks about National Security. While this issue of War and Defense is an impassioned argument, I ask you to not lose your logic in the heat of the moment. Please leave comment in the bottom.
I don't believe it is right for Americans to go outside our borders and fight an extrajudicial war. It is true Al-Qaeda on the tragic day of 9/11 killed innocent Americans. That act cannot be forgiven. But how can we justify the acts we commit as a country, when we invade other countries for the sake of revenge? When we commit drone strikes abroad and shrug off the collateral damage of killing innocent people, do we forget those acts reflect upon ALL of us. We live in a democracy and it up to us to participate. I can never spiritually condone the killing of an innocent person for the sake of revenge. That to me is playing God and that is not something with which I wish to wash my hands. It is easy to forget that terrorists are the minority and the only weapon they have is fear. I am not afraid. I will never be afraid. And I'm willing to defend my country right here at home.
The Military Imbalance: How The U.S. Outspends The World
Our Insanely Big $1 Trillion National Security Budget
Military Budget of the U.S.
Sunday, March 24, 2013
Wednesday, March 13, 2013
Strategic Issues Facing the Midddle East
Links to good reads?
post it in the comments
World Food Supply PT. II-
In addition to the World Food Security lecture, I wanted to include additional resources I've found helpful for understanding agriculture across the globe.
Silicon Valley tech company brings robotics to farming
In addition to the World Food Security lecture, I wanted to include additional resources I've found helpful for understanding agriculture across the globe.
-short video by the University of Minnesota's Institute on the Environment illustrates the challenges the globe faces in food security
-Indian farmers are breaking records in rice yields without the help of conventional ag technologies
-how Belo Horizonte, Brazil came together as a city and a community to implement market reforms that allowed them to end hunger
-a 9 minute documentary filmed for the French Bon appétit exhibition is aimed at educating children about how to feed the world
-Over 130 countries consider insects an integral part of their diet.
Subscribe to: Posts (Atom)


text:
Business slow to support Barrett
A relatively small number of southeastern Wisconsin business executives are contributing to Milwaukee Mayor Tom Barrett's gubernatorial campaign, which faces a huge financial disadvantage against incumbent Scott Walker.
Some Barrett backers suggest Barrett may need to emulate successful, but financially overmatched, Wisconsin candidates of the past like former Gov. Lee Dreyfus, a Republican, and former U.S. Sen. William Proxmire, a Democrat.
"Money is still the most important factor in today's political campaigns — unless lightning strikes," said Milwaukee public relations executive Evan Zeppos, who contributed $3,000 to Barrett.
Zeppos suggested Barrett take a few pages from Dreyfus strategy of touring the state on a bus with a band while wearing a red vest to get elected in 1978.
"He needs to find a way to make money the issue and less important — create an aura," Zeppos said.
Gary Ahrens, a litigation attorney at Milwaukee law firm Michael Best & Friedrich LLP, made the comparison to Proxmire, who never raised money and relied on shaking thousands of voters' hands every election and served from 1957 through 1988.
But those candidates ran in a different era dwarfed by the fundraising efforts of today's statewide candidates.
The Walker campaign reported this week it raised more than $13 million in the three-month period ended in April. The campaign has raised more than $25 million since Jan. 1, 2011.
The Barrett campaign said it raised $750,000 in the first 25 days of his gubernatorial campaign. He already had nearly $500,000 in his campaign fund from his mayoral re-election campaign.
Of course, Barrett must first win the Democratic primary May 8 to earn the right to challenge Walker in the June 5 recall election.
Barrett has led his main Democratic opponent, former Dane County Executive Kathleen Falk, in polls and was in a dead heat with Walker in a Marquette University Law School poll released this week.
Falk, who said last week she raised $1 million, also has the backing of a political action committee that is supported by labor unions including the Wisconsin Education Association.
Barrett spokesman Phil Walzak said his candidate is competing with Walker, despite the governor's heavy media spending.
"Walker already spent $10 million-plus and the voters are already not buying what he's selling," Walzak said.
Barrett will continue to gain financial support due to an "enormous groundswell" from Wisconsin voters, Walzak said.
Barrett had spent $635,368 advertising on Wisconsin media as of last week, according to his latest campaign finance report.
A Walker spokeswoman did not return a call seeking comment.
Part of Barrett's support in the business community came from executives who supported his re-election for mayor last month.
For example, several executives with Wisconsin Energy Corp., including chief executive officer Gale Klappa, contributed $1,000 to Barrett's Mayor's Club at a fundraiser with Chicago Mayor Rahm Emanuel. Barrett, as allowed by Wisconsin campaign law, transferred money from his mayoral account to his gubernatorial fund.
"Those (contributions) were made in response to a request for contributions to the Tom Barrett for Mayor Campaign and the Mayor's Club roundtable with Rahm Emanuel," said Wisconsin Energy spokesman Brian Manthey.
Klappa and Wisconsin Energy senior executives Frederick Kuester and Allen Leverett gave money to Barrett's mayoral campaign but also contributed $5,000 each to the Friends of Scott Walker.
On the other hand, Patrick O'Brien, president of the Milwaukee 7 regional economic development organization, said he contributed to Barrett's Mayor's Club but has no problem with the money going to Barrett's gubernatorial bid.
"I didn't think about it one way or the other," O'Brien said. "I just contributed because I know him and like him and think he does a good job."
Despite Barrett's ability to raise some money in the business community thus far, it's not even in the same galaxy as Walker's business support.
Barrett listed 10 donors of $10,000 in his most recent finance report. Walker lists 63 and topped that with 18 donations of $25,000 and six of $100,000 or more.
Walker was able to exceed the $10,000 limit for contributions due to a quirk in state law that allowed unlimited donations while he was fighting the recall effort.
Barrett, like many Democrats, relies heavily on contributions from attorneys. They range from those at larger, business-oriented firms such as Michael, Best & Friedrich LLP and Godfrey & Kahn SC to personal-injury lawyers at Habush Habush & Rottier SC and Gruber Law Offices LLC.
Many business attorneys support Walker, as do many manufacturing and financial executives.
Walker's largest southeastern Wisconsin business supporters as of late April were: Generac Power Systems founder Robert Kern, $100,000; Fiduciary Management Inc. executive chairman Ted Kellner, $95,000; Burke Properties' John Burke, $25,000; and InPro Corp. executive Stephen Ziegler, $20,000.


text:
When retiring rugby star Ash Trenton considered his next career move, coaching troubled teens at his ex-girlfriend's California camp wasn't on the list. But when Camila Morales reappears after eighteen years, begging for his help, he can't say no to his first and only love. Camila was just sixteen when ... more >
Dear Kristen Callihan, The Hook Up was one of my favourite reads of 2014 and ever since, I've been looking forward to the next book in the series. At the end of The Hook Up, Gray Grayson (yes, that's his real name – his mother read The Pelican Brief by ... more >
Dear Ms. O'Neill, I've been reading a lot of science fiction and fantasy lately, and the overall tone of the genre over the last few years has become steadily darker. And that's great for those who like that. I even like it from time to time. But I really like ... more >
Dear Sarina Bowen, It's no secret that I've been a squeeing fangirl since I first devoured your earlier Ivy Years books last year. You were my "author find" of 2014. So, of course, I begged shamelessly (heh, see what I did there?) on Twitter for an early copy of your ... more >
For nearly 300 years, the mysterious journal of Jacobite exile Mary Dundas has lain unread-its secrets safe from prying eyes. Now, amateur codebreaker Sara Thomas has been hired by a once-famous historian to crack the journal's cipher. But when she arrives in Paris, Sara finds herself besieged by complications from ... more >
Dear Michael Nava: I'm a huge fan of the Henry Rios mysteries, and when I saw that the same author had an upcoming historical novel set in early 20thC Mexico, I knew I wanted to read it. Despite my eagerness, though, I started and set aside the book at least ... more >
- « Previous Page
- 1
- …
- 14
- 15
- 16
- 17
- 18
- …
- 67
- Next Page »