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Most Cited Radiation Physics and Chemistry Articles
The most cited articles published since 2011, extracted from Scopus.
Carbon ion beam induced modifications of optical, structural and chemical properties in PADC and PET polymersVijay Kumar | R. G. Sonkawade | S. K. Chakarvarti | Paramjit Singh | A. S. Dhaliwal
Volume 81, Issue 6, June 2012, Pages 652-658
We report a study on the carbon ion beam induced modifications on optical, structural and chemical properties of polyallyl diglycol carbonate (PADC) commercially named as CR-39 and Polyethyleneterepthalate (PET) polymer films. These films were then irradiated by 55MeV C 5+ ion beam at various fluences ranging from 1×10 11 to 1×10 13 ions/cm 2. The pristine as well as irradiated samples were subjected to UV-Visible spectral study (UV-Vis), Photoluminescence (PL), X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. It has been found that ion irradiation may induce a sort of defects in the polymers due to chain scission and cross linking as observed from PL spectral study. It is revealed from UV-Vis spectra absorption edge shifted towards longer wavelength region after irradiation with increasing ion fluence. This shift clearly reflects decrease in optical band gap. The XRD study indicates the gradual decrease in intensity in case of PADC with increasing ion fluence. However, the intensity pattern increased in case of PET at fluence of 10 11 ion/cm 2 then decreased with further increase in fluence. Crystalline size of PADC was found to be decreasing gradually with increase of ion fluence. Whereas, the crystalline size of PET films found to increase with lower fluence and decreases with higher ion fluence. FTIR spectrum also shows the change in intensity of the typical bands after irradiation in the both the polymers. The results so obtained can be used successfully in heavy ions dosimetry using well reported techniques. © 2012 Elsevier Ltd.
Nanocrystalline materials for the dosimetry of heavy charged particles: A reviewNuman Salah
Volume 80, Issue 1, January 2011, Pages 1-10
Thermally stimulated luminescence or better known as thermoluminescence (TL) is a powerful technique extensively used for dosimetry of ionizing radiations. TL dosimeter (TLD) materials presently in use are inorganic crystalline materials. They are in the form of chips, single crystals or microcrystalline size powder. The most popular are LiF:Mg,Ti, LiF:Mg,Cu,P, CaSO4:Dy, CaF2:Dy and Al2O3:C. However, these TLD materials are not capable of precisely detecting heavy charged particles (HCP) irradiations in their present forms. The saturation effect is the major problem, which occurs at relatively low fluences (doses). Moreover, there is a significant variation in the TL glow curves structure with increase in doses, which is undesirable for the use in dosimetry. However, with the use of very tiny particles such as nanoscale TLD materials, this problem is overcome to a major extent. The TL results of the recently reported nanomaterials have revealed very imperative characteristics such as high sensitivity and saturation at very high doses. Recent studies on different luminescent nanomaterials showed that they have a potential application in dosimetry of heavy charged particles using TL technique, where the conventional microcrystalline phosphors saturate. This paper is a review on the prepared TLD nanomaterials, studied for their TL response to HCP. These are CaSO4:Dy, LiF:Mg,Cu,P, K2Ca2(SO4)3:Eu and Ba0.97Ca0.03SO4:Eu nanomaterials. The important results obtained in these nanomaterials and the possibility of using them as HCP dosimeters are discussed. © 2010 Elsevier Ltd.
Radiation synthesis and characterization of nanosilver/gelatin/carboxymethyl chitosan hydrogelYing Zhou | Yinghui Zhao | Lu Wang | Ling Xu | Maolin Zhai | Shicheng Wei
Volume 81, Issue 5, May 2012, Pages 553-560
A series of antibacterial hydrogels were fabricated from an aqueous solution of AgNO 3, gelatin and carboxymethyl chitosan (CM-chitosan) by radiation-induced reduction and crosslinking at ambient temperature. The nanosilver particles were in situ synthesized accompanying with the formation of gelatin/CM-chitosan hydrogel. Transmission Electron Microscope and UV-vis analysis have verified the formation and homogeneous distribution of nanosilver particles in the hydrogel matrix. The nanosilver/gelatin/CM-chitosan hydrogels possessed interconnected porous structure, had a compressive modulus of 44 to 56kPa, and could absorb 62 to 108 times of deionized water to its dry weight. Furthermore, the hydrogels were found to have sound antibacterial effect on Escherichia coli (E. coli), and their antibacterial ability could be significantly enhanced by the increasing of AgNO 3 content. The comprehensive results of this study suggest that nanosilver/gelatin/CM-chitosan hydrogels have potential as an antibacterial wound dressing. © 2012 Elsevier Ltd.
Effect of low doses γ-irradiation on oxidative stress and secondary metabolites production of rosemary (Rosmarinus officinalis L.) callus cultureHossam S. El-Beltagi | Osama K. Ahmed | Wael El-Desouky
Volume 80, Issue 9, September 2011, Pages 968-976
Effect of various γ-irradiation doses (0, 5, 10, 15 and 20G) on the enhancement of secondary metabolites production and antioxidant properties of rosemary callus culture was investigated. The obtained data showed a highly metabolic modification of chemical constituents and various antioxidant defense enzymes (APX, CAT, SOD and GR), which gradually increased in response to radiation doses, while reduced (GSH), ascorbic acid (AsA) contents, total soluble protein, total soluble amino acids, total soluble sugars and PAL activity positively correlated with the increased doses. On the other hands the high irradiation levels significantly increased the accumulation of various oxidative burst (MDA, H2O2 and O2-). Meanwhile, higher doses of gamma irradiation positively enhanced secondary products accumulation of total phenols and total flavonoids in rosemary callus culture. © 2011 Elsevier Ltd.
Gamma radiation induced synthesis of gold nanoparticles in aqueous polyvinyl pyrrolidone solution and its application for hydrogen peroxide estimationNilanjal Misra | Jayashree Biswal | Alka Gupta | J. K. Sainis | S. Sabharwal
Volume 81, Issue 2, February 2012, Pages 195-200
Gold nanoparticles (Au nps) have been synthesized in aqueous solution of polyvinyl pyrrolidone (PVP) by gamma radiolysis from HAuCl4.3H2O precursor and in presence of small concentrations of Ag+, 2-propanol and acetone. The effect of different experimental parameters, such as concentration of reactant, molecular weight of PVP on nanoparticle formation was studied. TEM image confirmed that spherical Au nps were formed when PVP of molecular weight 360,000Da was used as capping agent. H2O2 is a reactant in the enzyme catalyzed reaction of o-phenylene diamine (o-PDA). The reaction product has a weak absorption in the yellow region of the spectrum. When this product interacts with Au nps, it leads to enhancement of the absorption peak. The nanoparticles synthesized by radiation method were used for estimation of H2O2. The absorbance value of this peak at λmax was observed to change with H2O2 concentration, which was monitored for estimation of H2O2. The response is linear in the range of 2.5×10-6moldm-3 to 2×10-4moldm-3 and 1×10-7moldm-3 to 3×10-6moldm-3 H2O2 in two separate sets of experimental parameters with detection limit 1×10-7moldm-3. © 2011 Elsevier Ltd.
Assessment of natural and anthropogenic radioactivity levels in rocks and soils in the environments of Juban town in YemenA. I. Abd El-mageed | A. H. El-Kamel | A. Abbady | S. Harb | A. M M Youssef | I. I. Saleh
Volume 80, Issue 6, June 2011, Pages 710-715
The natural radioactivities of 40K, 226Ra, and 232Th and the fallout of 137Cs in rock and soil samples collected around Juban town in Yemen (south west of Asia) were measured. Concentrations of radionuclides in samples were determined by gamma-ray spectrometer using HPGe detector with specially designed shield. The average radioactivity concentrations of 226Ra, 232Th, and 40K were determined expressed in Bq/kg. The results show that these radionuclides were present in concentrations of (53.6±4, 127±6.7, and 1742.8±62Bq/kg), (55±4, 121±6.6, and 2341±78Bq/kg), (212.8±8.7, 109 ±5.5, and 32.4±4.7Bq/kg), and (32.1±3, 22.3±2.9 and 190.9±15Bq/kg) for granite, gneiss, siltstone, and sandstone rocks, respectively. For soil the corresponding values were 44.4±4.5, 58.2±5.1, and 822.7±31Bq/kg. Low deposits of 137Cs were noted in investigation area, where the activity concentrations ranged from 0.1±0.1 to 23.2±1.2Bq/kg. Also the radiological hazard of the natural radionuclides content, radium equivalent activity, total dose rates, external hazard index, and gamma activity concentration index of the (rocks/soils) samples in the area under consideration were calculated. The data were discussed and compared with those given in the literature. © 2011 Elsevier Ltd.
Synthesis and characterization of silver/poly(N-vinyl-2-pyrrolidone) hydrogel nanocomposite obtained by in situ radiolytic methodŽeljka Jovanović | Aleksandra Krklješ | Jasmina Stojkovska | Simonida Tomić | Bojana Obradović | Vesna Mišković-Stanković | Zorica Kacarevic-Popovic
Volume 80, Issue 11, November 2011, Pages 1208-1215
This work describes radiolytic synthesis of silver nanoparticles (Ag NPs) within the poly(N-vinyl-2-pyrrolidone) (PVP) hydrogel. The hydrogel matrix was obtained by gamma irradiation-induced crosslinking, while the in situ reduction of Ag+ ions was performed using strong reducing species formed under water radiolysis. Absorption spectrum of the Ag/PVP nanocomposite confirmed the formation of Ag NPs, showing the surface plasmon band maxima at 405nm. Ag/PVP nanocomposites were characterized by XRD and TEM analysis, accompanied with investigations of swelling and diffusion properties in the simulated body fluid at 37°C, and mechanical properties in bioreactor conditions. It was shown that Ag/PVP nanocomposite exhibited higher values of equilibrium swelling degree, Young's modulus, and molar mass between crosslinks, while lower values of the diffusion coefficient and effective crosslink density were obtained, as compared to the pure PVP. © 2011 Elsevier Ltd.
Thermoluminescence study of Cu, Ag and Mn doped lithium tetraborate single crystals and glassesMagdalyna Ignatovych | Mauro Fasoli | András Kelemen
Volume 81, Issue 9, September 2012, Pages 1528-1532
Spectrally resolved thermoluminescence (TL) of non-doped and Ag, Cu- and Mn-doped lithium-tetraborate (LTB) single crystals revealed that TL emission bands for differently doped samples proved to be at different wavelengths: 272, 370 and 608nm, respectively. These bands perfectly agree with the photoluminescence (PL) emission bands of Ag+, Cu+ and Mn2+ ions. It strongly points that these dopants are directly involved as recombination centers in the TL process.TL characteristics of non-doped and doped LTB single crystals and the corresponding glassy samples showed that their TL intensities and the structures of the glow curves were apparently different. © 2012 Elsevier Ltd.
Thermoluminescence and photoluminescence of ZrONuman Salah | Sami S. Habib | Zishan H. Khan | Fathi Djouider
2 nanoparticles
Volume 80, Issue 9, September 2011, Pages 923-928
This work describes the thermoluminescence (TL) and photoluminescence (PL) of zirconium oxide (ZrO2) nanoparticles synthesized using the propellant chemical combustion method. They were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD result shows a nanocrystalline material with a major tetragonal phase along with a small portion of monoclinic phase, while SEM images display particles of spherical shapes of diameters in the 25-35nm range. Samples from this powder were exposed to different doses of γ-rays from a 137Cs source in the range of 0.01Gy-1kGy. The induced TL glow curve has a single broad peak at around 600K. TL response curve of this peak shows sublinearity for all the recorded doses, while its fading over two months is negligible. The intensity and structure of the TL glow curve did not change after several cycles of exposures and readout. PL excitation and emission spectra were also recorded and are investigated. When the material was excited by different wavelengths, several emission bands are observed in the range of 300-500nm. The new nanocrystalline material shows excellent characterization such as good TL sensitivity, low fading and reusability making it a promising TL dosimeter. © 2011 Elsevier Ltd.
Radioactivity levels and radiological hazard indices at the Saudi coastline of the Gulf of AqabaH. A. Al-Trabulsy | A. E M Khater | F. I. Habbani
Volume 80, Issue 3, March 2011, Pages 343-348
The coast of the Gulf of Aqaba is subjected to several sources of pollution due to several activities occurring at the coastal area. The activities vary between industrial, tourist and other development aspects at the Jordanian coastline of the Gulf of Aqaba. Phosphate industry has been considered a major source polluting the marine environment. According to official reports, 4-7 million tons of raw phosphate is exported through the Gulf of Aqaba. During transportation and loading, a small proportion of this enters the waters of the Gulf. Phosphate dust has also been considered another source of nutrients loading to the Gulf. 19 sediment samples were collected along the Saudi Gulf coastline, from the Saudi-Jordan border down to the end of the Gulf at Tiran Strait. Measurements of the activity concentrations of 226Ra, 232Th, 40K and 137Cs in Bq/kg (in dry weight) of the collected samples were carried out using gamma-ray spectrometry based on a highly pure germanium coaxial detector (HPGe). The concentrations of 238U and 232Th were also determined using ICP-MS technique. The average specific activities for 226Ra, 232Th, 40K and 137Cs were found to be 11.4±1.5, 22.5±3.7, 641.1±61.3 and 3.5±0.7Bq/kg, respectively. The results show that the mean activity of 226Ra and 232Th is lower than the world average of 25Bq/kg for both of them, whereas the mean value for 40K is about double the world average of 370Bq/kg. The presence of 137Cs in the analyzed samples is low in most locations. The mean concentrations of 238U and 232Th in the study area are 1.2 and 5.4mg/kg, respectively, and the ratio 238U/232Th is 0.2, which is lower than the global ratio of 0.3. The ratio of 226Ra/228Ra was found to decrease southwards in the direction of Tiran Strait, away from the phosphate industry in Jordan. Mean values for radium equivalent, absorbed dose, annual effective dose, external and internal hazard index and representative level index were determined as: 92.9Bq/kg, 45.6nGy/h, 56.0γSv/y, 0.13, 0.28 and 0.73, respectively. © 2010 Elsevier Ltd.
Surface modification of poly(ethylene terephthalate) (PET) film by gamma-ray induced grafting of poly(acrylic acid) and its application in antibacterial hybrid filmXiang Ping | Mozhen Wang | Ge Xuewu
Volume 80, Issue 4, April 2011, Pages 567-572
Acrylic acid (AA) was facilely grafted onto poly(ethylene terephthalate) (PET) film through gamma-ray induced graft copolymerization. Silver nanoparticles produced by the chemical reduction of silver ions were then immobilized by carboxylic anions and embedded on the surface of PET-g-PAA film. It was found that the DG of PAA on PET film increases with the absorbed dose and would finally control the amount of loaded silver nanoparticles. The prepared PET-g-PAA/Ag hybrid films were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA). The bactericidal activity of the PET-g-PAA/Ag hybrid film was evaluated by the efficiency of killing Escherichia coli. The results showed that the PET-g-PAA/Ag hybrid film has a strong and stable antibacterial activity. © 2010.
Degradation mechanisms of cable insulation materials during radiation-thermal ageing in radiation environmentTadao Seguchi | Kiyotoshi Tamura | Takeshi Ohshima | Akihiko Shimada | Hisaaki Kudoh
Volume 80, Issue 2, February 2011, Pages 268-273
Radiation and thermal degradation of ethylene-propylene rubber (EPR) and crosslinked polyethylene (XLPE) as cable insulation materials were investigated by evaluating tensile properties, gel-fraction, and swelling ratio, as well as by the infrared (FTIR) analysis. The activation energy of thermal oxidative degradation changed over the range 100-120 °C for both EPR and XLPE. This may be attributed to the fact that the content of an antioxidant used as the stabilizer for polymers decreases by evaporation during thermal ageing at high temperatures. The analysis of antioxidant content and oxidative products in XLPE as a model sample showed that a small amount of antioxidant significantly reduced the extent of thermal oxidation, but was not effective for radiation induced oxidation. The changes in mechanical properties were well reflected by the degree of oxidation. A new model of polymer degradation mechanisms was proposed where the degradation does not take place by chain reaction via peroxy radical and hydro-peroxide. The role of the antioxidant in the polymer is the reduction of free radical formation in the initiation step in thermal oxidation, and it could not stop radical reactions for either radiation or thermal oxidation. © 2010 Elsevier Ltd.
Modification of mechanical and thermal property of chitosan-starch blend filmsMohammad O. Tuhin | Nazia Rahman | M. E. Haque | Ruhul A. Khan | N. C. Dafader | Rafiqul Islam | Mohammad Nurnabi | Wafa Tonny
Volume 81, Issue 10, October 2012, Pages 1659-1668
Chitosan-starch blend films (thickness 0.2. mm) of different composition were prepared by casting and their mechanical properties were studied. To improve the properties of chitosan-starch films, glycerol and mustard oil of different composition were used. Chitosan-starch films, incorporated with glycerol and mustard oil, were further modified with monomer 2-hydroxyethyl methacrylate (HEMA) using gamma radiation. The modified films showed improvement in both tensile strength and elongation at break than the pure chitosan-starch films. Water uptake of the films reduced significantly than the pure chitosan-starch film. Thermo gravimetric analysis (TGA) and dynamic mechanical analysis (DMA) showed that the modified films experience less thermal degradation than the pure films. Scanning electron microscopy (SEM) and FTIR were used to investigate the morphology and molecular interaction of the blend film, respectively. © 2012 Elsevier Ltd.
CdSe nanoparticles grown via radiolytic methods in aqueous solutionsShalini Singh | M. C. Rath | A. K. Singh | T. Mukherjee | O. D. Jayakumar | A. K. Tyagi | S. K. Sarkar
Volume 80, Issue 6, June 2011, Pages 736-741
Cadmium selenide, CdSe, nanoparticles have been synthesized in aqueous solution containing equimolar ammoniated CdSO4 and Na2SeSO3 as the starting materials without any capping agents, using gamma and electron beam irradiation under a reducing condition. The radiolytic processes occurring in water result in the formation of CdSe nanoparticles through the reactions mediated by hydrated electrons, eaq-. TEM measurements revealed that the CdSe nanoparticles were found to exist in agglomerates of dimension of about 100nm, consisting of primary nanoparticles of dimensions within 5nm. The as-grown nanoparticles were of cubic crystalline phase as supported by the XRD measurements. These bare CdSe nanoparticles exhibit room temperature ferromagnetic (RTFM) behavior. However, the RTFM behavior was found to be 30% higher in the case of CdSe nanoparticles prepared on electron beam irradiation as compared to those obtained by gamma irradiation, which was attributed to their relatively smaller size (2-3nm) and disordered structures as compared to those obtained in the later case (3-5nm). © 2011 Elsevier Ltd.
Cellulose functionalization via high-energy irradiation-initiated grafting of glycidyl methacrylate and cyclodextrin immobilizationGilles Desmet | Erzsébet Takács | László Wojnárovits | Judit Borsa
Volume 80, Issue 12, December 2011, Pages 1358-1362
Cotton-cellulose was functionalized using gamma-irradiation-induced grafting of glycidyl methacrylate (GMA) to obtain a hydrophobic cellulose derivative with epoxy groups suitable for further chemical modification. Two grafting techniques were applied. In pre-irradiation grafting (PIG) cellulose was irradiated in air and then immersed in a GMA monomer solution, whereas in simultaneous grafting (SG) cellulose was irradiated in an inert atmosphere in the presence of the monomer. PIG led to a more homogeneous fiber surface, while SG resulted in higher grafting yield but showed clear indications of some GMA-homopolymerization. Effects of the reaction parameters (grafting method, absorbed dose, monomer concentration, solvent composition) were evaluated by SEM, gravimetry (grafting yield) and FTIR spectroscopy. Water uptake of the cellulose decreased while adsorption of a pesticide molecule increased upon grafting. The adsorption was further enhanced by Β-cyclodextrin immobilization during SG. This method can be applied to produce adsorbents from cellulose based agricultural wastes. © 2011 Elsevier Ltd.
Kinetics and mechanisms studies on dimethyl phthalate degradation in aqueous solutions by pulse radiolysis and electron beam radiolysisMing Hong Wu | Ning Liu | Gang Xu | Jing Ma | Liang Tang | Liang Wang | Hai Ying Fu
Volume 80, Issue 3, March 2011, Pages 420-425
The kinetics and mechanisms of hydroxyl radical/hydrated electron reactions with dimethyl phthalate (DMP) were investigated using pulse radiolysis and electron beam radiolysis techniques. The bimolecular rate constants for the reaction of hydroxyl radical and hydrated electron with DMP were measured to be 3.4×109M-1s-1 and 1.6×1010M-1s-1 under pulse radiolysis experiments, respectively. The major products after radiation were elucidated by LC/MS/MS and ion chromatography analysis. It was found that DMP degradation had different mechanisms in oxidative and reductive conditions: hydroxyl radical attacked aromatic ring of DMP leading to the fracture of benzene ring, formed a series of byproducts which were completely mineralized while hydrated electron attacked the ester group of DMP, formed the product of phthalic acid in reductive conditions. © 2010 Elsevier Ltd.
Comparison of different chlorophenols degradation in aqueous solutions by gamma irradiation under reducing conditionsYunxia Peng | Shijun He | Jianlong Wang | Wenqi Gong
Volume 81, Issue 10, October 2012, Pages 1629-1633
The reductive degradation of chlorophenols (CPs), including 2-CP, 4-CP and 2,4-DCP by gamma irradiation was investigated and compared. The results showed that the most efficient degradation took place with 2,4-DCP, followed by 2-CP and then 4-CP. This confirmed that the number and position of chlorine atoms existing in the benzene ring have significant impact on dechlorination and decomposition of CPs. The G-values of decomposition of CPs, the formation of intermediate products and chloride ion, and the degradation rate (K CPs and KCl-1) were also determined. © 2012 Elsevier Ltd.
Synergistic degradation to prepare oligochitosan by γ-irradiation of chitosan solution in the presence of hydrogen peroxideNguyen Ngoc Duy | Dang Van Phu | Nguyen Tue Anh | Nguyen Quoc Hien
Volume 80, Issue 7, July 2011, Pages 848-853
Synergistic degradation of chitosan by γ-irradiation of chitosan solution (3%) in the presence of hydrogen peroxide (0.25%, 0.5% and 1%) was investigated. The efficiency of the degradation process was demonstrated by gel permeation chromatography (GPC) analysis of the average molecular weight of degraded chitosan (oligochitosan). Structures of resultant oligochitosan were characterized by Fourier-transform infrared spectra (FT-IR) and X-ray diffraction (XRD). Results showed that oligochitosan with Mw from 5000 to 10,000 could be efficiently prepared by γ-irradiation of chitosan solution containing a small amount of hydrogen peroxide at low dose less than 10kGy. There was almost no significant change in the main chain structure of oligochitosan; however, the obtained oligochitosans lost about 10% of amino groups and the formation of carboxyl groups could not be specified by FT-IR spectra. The morphology state of oligochitosan was essentially amorphous, which differs from that of original chitosan. The combined γ ray/H2O2 method is significantly efficient for scale-up manufacture of oligochitosan. © 2011 Elsevier Ltd.
The effects of high energy electron beam irradiation on the thermal and structural properties of low density polyethyleneKieran A. Murray | James E. Kennedy | Brian McEvoy | Olivier Vrain | Damien Ryan | Clement L. Higginbotham
Volume 81, Issue 8, August 2012, Pages 962-966
Radiation is currently being exploited to modify polyethylene in order to improve properties for various applications such as hip replacements. This paper thoroughly examines the effects of high energy electron beam irradiation (10MeV) on low density polyethylene (LDPE) material. ASTM (American Society for Testing and Materials) testing specimens were manufactured from LDPE and subjected to a broad range of doses ranging between 25 and 400kGy at room temperature in an air atmosphere. Extensive characterisation techniques such as modulated differential scanning calorimetry (MDSC) and the Fourier transform infrared spectroscopy (FTIR) were conducted on the non-irradiated and irradiated samples. While considering the semicrystalline nature of LDPE during the MDSC experiment, the melting temperature (T m) and the temperature crystallinity (T c) were calculated. This revealed that the T m and the T c decreased in temperature as the irradiation dose increased. The FTIR analysis was implemented to evaluate the presence of polar species such as carbonyl groups and trans-vinylene double bond groups. The IR spectra illustrated that the concentration of characteristic bands for trans-vinylene bonds increased with increasing radiation dose indicating the formation of carbonyl bond groups. Furthermore, the results demonstrated an occurrence of oxidative degradation due to the formation of carbonyl groups at 1718cm -1. © 2011 Elsevier Ltd.
Production of palladium nanoparticles supported on multiwalled carbon nanotubes by gamma irradiationJ. V. Rojas | C. H. Castano
Volume 81, Issue 1, January 2012, Pages 16-21
Palladium nanoparticles were produced and supported on multiwalled carbon nanotubes (MWCNT) by gamma irradiation. A solution with a specific ratio of 2:1 of water-isopropanol was prepared and mixed with palladium chloride and the surfactant sodium dodecyl sulfate (SDS). The gamma radiolysis of water ultimately produces Pd metallic particles that serve as nucleation seeds. Isopropanol is used as an ion scavenger to balance the reaction, and the coalescence of the metal nanoparticles was controlled by the addition of SDS as a stabilizer. The size and distribution of nanoparticles on the carbon nanotubes (CNT) were studied at different surfactant concentrations and radiation doses. SEM, STEM and XPS were used for morphological, chemical and structural characterization of the nanostructure. Nanoparticles obtained for doses between 10 and 40. kGy, ranged in size 5-30. nm. The smaller nanoparticles were obtained at the higher doses and vice versa. Histograms of particle size distributions at different doses are presented. © 2011 Elsevier Ltd.
Fe2+ enhancing sulfamethazine degradation in aqueous solution by gamma irradiationYuankun Liu | Jun Hu | Jianlong Wang
Volume 96, Issue , March 2014, Pages 81-87
The radiation-induced degradation of sulfamethazine (SMT) was carried out by gamma irradiation. SMT with initial concentration of 20mg/L was irradiated in the presence of 0, 0.1, 0.2, 0.4 and 0.6mM extra Fe2+. The results showed that ferrous ion (Fe2+) could enhance the degradation of SMT by gamma irradiation in aqueous solution. SMT could be almost completely removed at 1kGy without extra Fe2+, however, TOC removal efficiency was less than 10%. Several intermediate products, such as 4,6-dimethylpyrimidin-2-amine, 4-aminobenzenesulfonic acid, 4-nitrophenol 4-nitrobenzenesulfonic acid, 2-amino-6-methylpyrimidine-4-carboxylic acid, and 4-amino-N-carbamimidoyl-benzenesulfonamide and formic acid, acetic acid, and sulfate were identified. Possible pathway of SMT degradation in aqueous solution was tentatively proposed. © 2013 Elsevier Ltd.
Effect of swift heavy ion irradiation on structural, optical and electrical properties of spray deposited CdO thin filmsR. Kumaravel | K. Ramamurthi | Indra Sulania | K. Asokan | D. Kanjilal | D. K. Avasti | P. K. Kulria
Volume 80, Issue 3, March 2011, Pages 435-439
Thin films of cadmium oxide have been deposited on glass substrate using the spray pyrolysis technique. The prepared films are irradiated with 120MeV swift Ag9+ ions for fluence in the range of 1×1012-1×1013ionscm-2 and their structural properties are studied by glancing angle X-ray diffraction. The films exhibit cubic crystal structure. It is observed that the irradiated films are amorphized at higher fluence of 1×1013ionscm-2. Surface morphology studies by atomic force microscopy show that the pristine film has a surface roughness of 39.80nm and it decreases with increase in ion fluence. The optical transmittance spectra show a decrease in transmittance with increase in fluence and the band gap value also decreases due to irradiation. © 2010 Elsevier Ltd.
Radiation induced degradation of pharmaceutical residues in water: ChloramphenicolTamás Csay | Gergely Rácz | Erzsébet Takács | László Wojnárovits
Volume 81, Issue 9, September 2012, Pages 1489-1494
The γ-radiolytic degradation of chloramphenicol (CPL) was investigated in 0.1-1mmoldm-3 aqueous solutions at various radiation conditions. The destruction of CPL was monitored by UV-vis spectrophotometric method through the decrease in the intensity of the absorbance band at 276nm. LC-MS/MS was used to identify the degradation products. Results indicate that •OH can add onto the CPL aromatic ring or can abstract H-atom from the side chain. The reductive dechlorination of CPL was also studied based on the reaction of eaq- with CPL. In 0.1mmoldm-3 solution above 2.5kGy dose complete CPL degradation was achieved. In the presence of dissolved oxygen at relatively low dose, various oxidation products were observed. In the presence of tertiary butanol radical scavenger tertiary butanol group containing products were also detected. The toxicity increased as a function of dose to 1.0kGy. At doses higher than 1.0kGy the toxicity decreased continuously due to further degradation. It was also demonstrated that the O2-•/HO2• pair has low reactivity in CPL solution. © 2012 Elsevier Ltd.
Decomposition of persistent pharmaceuticals in wastewater by ionizing radiationAtsushi Kimura | Misako Osawa | Mitsumasa Taguchi
Volume 81, Issue 9, September 2012, Pages 1508-1512
Pharmaceuticals in wastewater were treated by the combined method of activated sludge and ionizing radiation in laboratory scale. Oseltamivir, aspirin, and ibuprofen at 5μmoldm -3 in wastewater were decomposed by the activated sludge at reaction time for 4h. Carbamazepine, ketoprofen, mefenamic acid, clofibric acid, and diclofenac were not biodegraded completely, but were eliminated by γ-ray irradiation at 2kGy. The rate constants of the reactions of these pharmaceuticals with hydroxyl radicals were estimated by the competition reaction method to be 4.0-10×10 9mol -1dm 3s -1. Decompositions of the pharmaceuticals in wastewater by ionizing radiation were simulated by use of the rate constants and the amount of total organic carbon as parameters. Simulation curves of concentrations of these pharmaceuticals as a function of dose described the experimental data, and the required dose for the elimination of them in wastewater by ionizing radiation can be estimated by this simulation. © 2011 Elsevier Ltd.
Theoretical study of the addition and abstraction reactions of hydroxyl radical with uracilK. P. Prasanthkumar | C. H. Suresh | C. T. Aravindakumar
Volume 81, Issue 3, March 2012, Pages 267-272
The addition as well as abstraction reactions of hydroxyl radical ( OH) with the nucleic acid base, uracil (U), in the gas phase has been explored at the B3LYP/6-31+G(d,p) level of density functional theory (DFT). The energy barrier of the OH addition to both the C5 and C6 positions of the uracil is less than 1kcal/mol while the hydrogen abstractions (H-abstractions) from either the N1 or the N3 positions are ~9.5kcal/mol. Further the energetics of these reactions are assessed by applying the effect of aqueous medium through the polarizable continuum model (PCM). Both the gas and the solution phase data established that the thermodynamic and kinetic factors are more favorable for the OH addition to either C5 or C6 positions of the uracil than the H-abstraction reactions. Moreover, calculations at the MPW1K/6-31+G(d,p), CCSD(T)/6-31+G(d,p)//B3LYP/6-31+G(d,p) and CCSD(T)/6-31+G(d,p)//MPW1K/6-31+G(d,p) levels of theoretical methods qualitatively supported the B3LYP/6-31+G(d,p) results. © 2011 Elsevier Ltd.


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The End

subset: commoncrawl


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Public Safety
The Federal Communications Commission on Aug. 8 adopted new rules requiring all wireless carriers and text message application providers that operate over cellular networks to support text-to-911 by the end of 2014.
As the name indicates, text-to-911 functionality enables individual seeking aid from first responders to send text messages to 911. The tool is potentially critical for users with speech and hearing impairments and those in emergencies where a voice call might be ill-advised, as in an active shooter situation.
The deadline reported in the FCC order is potentially misleading, however. The technology currently is deployed to just a handful of dispatch centers -- known as public safety answering points or PSAPs. All PSAPs in Maine and Vermont handle 911 texts; the remaining deployments are scattered across the country, with concentrations in Indiana, Texas, and 14 other states. All told, only about two percent of the population currently has access to text-to-911 services. Early efforts were backed by the four major U.S. wireless carriers, AT&T, Verizon, Sprint and T-Mobile, on a volunteer basis.
The new rules make compliance with text-to-911 protocols mandatory for all providers. Under the order, carriers have six months to deploy text-to-911 to PSAPs that request it.
But provider compliance alone won't make text-to-911 a reality -- that is up to states and local jurisdictions. Republican FCC Commissioner Ajit Pai made that point in his dissent, noting that, "in your moment of need, if you try texting 911 in over 98 percent of the country, you won't reach emergency personnel no matter what application you use."
Pai wants the FCC to hold off on issuing rules on interactive emergency services until the transition to an all Internet Protocol-based communications networks that supports next-generation 911 services. "SMS has inherent limitations that, for 911 purposes, render it inappropriate for use as anything other than an interim, stop-gap measure."
FCC Chairman Tom Wheeler dismissed those concerns. "Yes call 911 if you can, but if you can't, what are you going to do," Wheeler said in unscripted remarks that referenced the oral statements of the Republican commissioners. "I guess we could sit here and wait until everything is worked out.... But if one life is one too many, as we have heard today [from Commissioner Pai] what do we explain to that life, or to his or her relatives? That we'd figured we'd sit here and wait until the best of all possible worlds was possible? We're not doing that."
The rules cover carriers and embedded text applications, like Apple's iMessage, that work on mobile networks and are known as "over the top" services. They do not apply to message services in Twitter or Facebook or the popular Whatsapp tool recently acquired by Facebook, and even texts from a embedded app like iMessage would not be covered when sent from a device connected to wi-fi but not to cellular networks. Also, as several commissioners pointed out, the quality of the location information contained in SMS messages varies widely, and there is no guarantee that responders will be able to pinpoint the location of an emergency caller.
The FCC does have rules in place that require text messaging providers to send alert texts to users
who attempt to text 911 in areas where the service does not exist.
Bob Quinn, head of the federal regulatory group at AT&T, noted in a blog post that, "While smart lawyers at the agency will know which text providers fit the definition and which don't, I am not certain those distinctions will be obvious to the hundreds of millions of consumers downloading texting applications." Quinn is also concerned that 911 support requirements could impinge on the ability of carriers to move from SMS messaging to IP-based tools.
In addition to the rule on text-to-911 support, the FCC also voted up a notice of proposed rulemaking to collect comments on the future of text-to-911 and other enhanced emergency services, with an eye to delivering location information on users and roaming support.
About the Author
Adam Mazmanian is executive editor of FCW.
Before joining the editing team, Mazmanian was an FCW staff writer covering Congress, government-wide technology policy, health IT and the Department of Veterans Affairs. Prior to joining FCW, Mr. Mazmanian was technology correspondent for National Journal and served in a variety of editorial at B2B news service SmartBrief. Mazmanian started his career as an arts reporter and critic, and has contributed reviews and articles to the Washington Post, the Washington City Paper, Newsday, Architect magazine, and other publications. He was an editorial assistant and staff writer at the now-defunct New York Press and arts editor at the About.com online network in the 1990s, and was a weekly contributor of music and film reviews to the Washington Times from 2007 to 2014.
Click here for previous articles by Mazmanian. Connect with him on Twitter at @thisismaz.
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Nominations are now being accepted for the 2017 Federal 100 Awards.
Submit yours today!
Help us identify the outstanding women and men in federal IT.
Hack the Pentagon proved to Defense Department officials that outside hackers can be assets, not adversaries.
Government cybersecurity officials say the presidential policy directive codifies cyber incident response protocols but doesn't radically change what's been in practice in recent years.
The government's departing top acquisition official said she leaves behind a solid foundation on which to build more effective and efficient federal IT.
The National Background Investigations Bureau announced the appointment of its first director as the agency prepares to take over processing government background checks.
Sen. James Lankford (R-Okla.) said agencies are missing out on younger workers because of the government's rigidity, particularly its protracted hiring process.
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text:
SOX boosts IT salaries
A recent survey from Robert Half Technology says the demand for SOX auditors will help drive industry salaries up in 2006.
This Article Covers
Risk management
According to the report, the IT industry as a whole is predicted to see a 3.5% salary jump in 2006, a significant improvement over the 0.5% predicted last year. One reason that 2006 is expected to improve over 2005 is that companies are adding jobs at a faster rate than last year, said the firm's Lee, to "avoid losing top candidates to competing candidates."
Your exclusive guide to CIO trends
A collection of our most popular articles for IT leaders from the first few months of 2016, including: - Corporate giants recruit digitally-minded outsiders to drive transformation - Analytics platforms to drive strategy in 2016 - Next generation: The changing role of IT leaders.
By submitting your personal information, you agree that TechTarget and its partners may contact you regarding relevant content, products and special offers.
You also agree that your personal information may be transferred and processed in the United States, and that you have read and agree to the Terms of Use and the Privacy Policy.
- Lead applications developers, starting pay will range from $72,000 and $98,250, up 5.3% over last year.
- Security administrators, $67,500 to $94,750, up 5.2%.
- Business system analysts, $58,750 to $84,750, up 5.1%.
- Data analyst/report writers, $54,000 to $71,250, up 5%.
- Developers/programmer analysts, $55,250 and $86,750, up 4.6%.
- Project managers, $72,750 to $99,250, up 4.2%.
Enjoy the benefits of CW+ membership, learn more and join.
Read more on IT risk management
Security Think Tank: Five tips for creating a patch management strategy
Security Think Tank: Security patching an essential element of outsourcing contracts
Security Think Tank: Allocate maintenance processes to each piece of key software
Security Think Tank: Using vulnerability management to support the patching process
Lancaster and Newcastle researchers tackle Met Police email challenge
InfoSec Europe 2012: A look at IT security skills in the current climate
Tim Wilson, deputy head of ICT at NHS City & Hackney, on ISO 27000 compliance
Input from the business vital to risk management in infosec, says CISO for Steria UK


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American Legion Post 50 helps put old Old Glories to rest
Sun, 04/17/2011 - 6:46pm Michael Boylan
American Legion Post 50 dedicated a Flag Retirement Box by the Veteran's Memorial at Peachtree City City Hall on Thursday. The box is available for all citizens to deposit their old U.S. flags for proper retirement. From left are Jim Ryan, senior member of American Legion Post 50, Adjutant Ted Dirkschneider, Commander Arnie Geiger and 4th District Senior Vice President and Past Commander of American Legion Post 50 Jim O'Brien. Photo/Michael Boylan.


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motorcycle goggles over glasses delivered promptly at reasonable cost. The product worked well and I like the glasses. I used them whilst doing the cycling component of the UK Half Ironman - 56 mile cycle and I had no problems with fit or glare. Beautiful looking shades & sound Podgorica
Notice: Undefined index: 1737 in Z:\FCK_VM\htdocs\fanzhi\index.php on line 69
oakley wingspan hen the summer is here
very good value for money but more suitable for a young person as a bit blingey for me but great quality so gave to a teenager who was delighted
These glasses are cool. They arrived in time and grea.
kiteboarding kitesurfing N QUITE WELL FOR THE PRICE ORDERED ANOTHER PAIR FOR FUTURE USE. ALSO COMFORTABLE WHAT MORE COULD YOU WANT AND LIKE ANOTHER REVIEW SAID LOOK GOOD ON ALSO
These shades were a bargain! I've had only good comments from others about them - and they're really comfy and do the job well of reducing brightness and glare.
Eyelevel Matchman sunglasses are pair of good comfortable men sunglasses tha women ray ban fit perfectly, Great correspondence with the seller, who was very helpful, thanks Martin very happy.
For the price I paid for these I have absolutely no complaints. I will be taking these to the beach with me where I don't have to worry about being blinded as I sun bathe. In fact I don't have to worry a ray ban shooter tooth functions, as older android phones will not connect to the device. Also refrain from ordering the dark coloured lens because they are literally pitch black! Unless you are planing on visiting the Sahara dessert! Order the lighter shades of lens. I am not sure if it provides true UV protection, so that is something you may want to ask the manufacture via email. Other than that the design is pretty sturdy and flexible, but slightly bulky for normal sunglasses.
Bought these for when my partner and i go fishing, 3 in 1 must have bi.


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I made this cake for a 13th birthday girl. I don't use fondant, just a creamy frosting recipe, so it is a job to smooth out all the frosting to give it the "fondant look". she flipped for this cake.
CakeCentral.com is the world's largest cake community for cake decorating professionals and enthusiasts.
(if this is a private computer)
Yes please, register now!


text:
realmagick.com The shrine of knowledge.
- Pranksters condemned after staging fake glass bottle attack on woman at
- A group of pranksters have criticised for staging a "social experiment" where a woman appeared to be bottled during a domestic violence rally. Abuse survivors watched in horror as a man smashed what looked to be a glass bottle over the head of a woman ...
- COURT: Hen do sisters rescue man in Harrogate glass bottle attack
- Two heroic sisters came to the rescue of a man being attacked with a glass bottle. Following the Harrogate town centre incident have been commended by a Crown Court judge for their exceptional bravery. Sisters Louise Kemp, 24, and Joanne Fox, 27, were ...
- Why Coke Tastes Better in a Glass Bottle, According to Science
- But taste might actually have more to do with that glass bottle than previously thought.
- Why does Coca Cola taste better from a glass bottle than a can? Science has
- The recipe for Coca Cola is the same whether it's in a metal can or a glass bottle - so why does the latter taste so much better?
- Science has revealed why Coca Cola tastes better from a glass bottle than a
- This means the fizz will leak out of a plastic bottle of Coke faster than it would from a can or glass bottle. "While packaging and food companies work to prevent any interactions, they can occur," biochemist Sara Risch explained.
Glassbottle is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Glassbottle books and related discussion.
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Product Description
Trick Flow StreetBurner Intake Manifold Kit with Silver Upper for 1986-1995 5.0 Liter Mustangs.When it comes to making horsepower, one size doesn't fit all. That's why Trick Flow designed their StreetBurner intake manifold for 5.0L Fords. Each manifold is computer-engineered to deliver an excellent balance of airflow distribution and velocity to increase low-end torque and provide superior high-rpm horsepower. This Trick Flow StreetBurner manifold upper is made from A319 aluminum and features a high-quality silver powdercoated finish.
*1994-1995 5.0L Mustangs require an additional intake adapter elbow.
|Additional Features
|Plenum Finish:
|Silver Upper
|Plenum Opening:
|75 mm
|Runner Length:
|15" Long
|RPM Range:
|Idle-5,500 Rpm
|Port Size @ Head:
|Plenum Height:
|10.2" from flange
Product ReviewsWrite a review
Product Questions
Will this fit under a stock hood and shock tower brace on a 95 mustang?
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Katja Schulz set "Image of Coccinella septempunctata brucki" as an exemplar on "Coccinella septempunctata Linnaeus, 1758".
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To request an improvement, please leave a comment on the page. Thank you!


text:
Thu, 27 Oct, 2016, 8:48 AM EDT - Canadian Markets open in 42 mins.
MONTREAL — National Bank of Canada says it's planning to cut 600 employees — about half through a targeted retirement program — as it adapts to a technological shift in the banking industry. … More »
U.S. stock index futures pointed to a higher open on Thursday as traders eyed a host of big earnings and the release of several pieces of data. … More »
Aetna's third-quarter earnings rose nearly 8 per cent to top Wall Street forecasts, as growing government business and cost cutting countered higher costs from the health insurer's Affordable Care Act coverage. Aetna's enrolment in government … More »
Durable goods orders fell 0.1% in September, more than forecast, according to a preliminary... … More »
TORONTO (Reuters) - National Bank of Canada said on Thursday it expects to take a charge of C$175 million in the fourth quarter relating to a restructuring which will see 600 staff depart. The bank said the restructuring will result in C$120 million … More »
Qualcomm Inc agreed to buy NXP Semiconductors NV for about $38 billion in the biggest-ever semiconductor industry deal, expanding the reach of its chips from phones to cars. The deal will make Qualcomm, which provides chips to Android smartphone … More »
Troubles in Ford Motor Co.'s home market — including a massive recall and the difficult launch of new heavy-duty pickups — are hurting the company's bottom line. Ford said Thursday its net income plunged 56 per cent to $957 million in the third … More »
(Reuters) - Cenovus Energy Inc cut its 2016 exploration and production budget again, as the Canadian oil producer looks to tackle a steep fall in oil prices that has eroded cash flows. The company, which reported a much bigger-than-expected loss … More »
These are the stocks posting the largest moves before the bell. … More »
Twitter, seemingly unable to find a buyer and losing money, is cutting about 9 per cent of its employees worldwide. The social media site has failed to keep pace with rivals Facebook, Snapchat and Instagram and in recent months, rumours that it … More »
HONG KONG — Global stock markets were steady on Thursday as investors weighed a mixed batch of corporate earnings reports and economic data. … More »
ATLANTA (AP) _ United Parcel Service Inc. (UPS) on Thursday reported third-quarter net income of $1.27 billion. … More »
Here we go, here we go, here we go. Apple has taken its online store down ahead of its big event... … More »
The Swedish krona is diving. The currency is down by 0.7% at 8.9818 per dollar as of 7:41 a... … More »
By Andreas Cremer BERLIN (Reuters) - Profits at Volkswagen's core brand plunged more than a half in the three months through September, turning up the pressure on the German carmaker to strike a big cost-cutting deal with its powerful works … More »
(Reuters) - Stock futures pointed to a higher opening for Canada's main stock index on Thursday as oil prices rose on a further drop in U.S. crude inventories. December futures on the S&P TSX index were up 0.20 percent at 7:15 a.m. ET. Canada's … More »
RICHMOND, Va. (AP) _ Altria Group (MO) on Thursday reported third-quarter earnings of $1.09 billion. … More »
(Reuters) - Husky Energy Inc , Canada's No. 3 integrated oil company, reported a bigger-than-expected quarterly loss as weak crude oil prices continued to eat into profits. In a bid to soften the impact of weak oil prices, Husky is focusing on … More »
Smartphone chipmaker Qualcomm is buying NXP Semiconductors N.V. in a deal valued at approximately $38 billion. The combined company is expected to have annual revenues of more than $30 billion. Shares of Qualcomm Inc., which is based in San Diego, … More »
(Reuters) - Potash Corp of Saskatchewan , the world's biggest fertilizer company by capacity, reported better-than-expected quarterly sales as prices bounced back from the lows of the year and on record volumes. Sales volumes rose 16.3 percent to … More »
German carmaker Volkswagen will invest 150 million euros ($163.67 million) to build a logistics center near its assembly plant in Bratislava, Slovakia, the company said on Thursday. The logistics center will be opened in 2017 and an external … More »
Qualcomm has agreed to buy NXP Semiconductors for $47 billion in an all-cash deal. The deal... … More »
Husky Energy (TSX:HSE) says gains from asset sales propelled it to a $1.4-billion profit in the third quarter. The profit amounted to $1.37 per share, which contrasted with a year-earlier loss of $196 million or 20 cents per share. The biggest … More »
HARTFORD, Conn. (AP) _ Aetna Inc. (AET) on Thursday reported third-quarter profit of $603.9 million. … More »
(Reuters) - Canadian miner Teck Resources Ltd reported better-then-expected quarterly revenue on Thursday due to higher prices for steelmaking coal, and raised its production forecast for the year. Teck, the largest producer of steelmaking coal in … More »


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Compton - 3 Seat Pillow Back Sofa
Description - Dimensions - Features
A classic elegant style with a contemporary twist, the Compton fabric sofa collection will compliment any living room. Choose from either standard back or pillow back in a range of 3 sofa sizes, with matching chairs and stools available. This outstanding value for money range includes co-ordinating scatter cushions and a variety of fabrics to choose from.
This item is made to order
Width: 215cm
Depth: 100/103cm
Height: 78cm
All screens vary in colour reproduction and whilst every effort has been made to display the colour as accurately as possible it is for guidance only.
Item Number: 9000237099
Availability: This item is available to order
Lead Time: Made for you in Approx 8 weeks
Delivery Charges: Click here for details
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Did they downgrade themselves already? No? Why not?
............ so overdue.
you make NO sense - baseless stupid postings! (I thought there was a rule of children being restricted from this site).
How does RJF intend to con the GOV this time ?OOPS ... we're really a bank ???LMAO
Are they still open ?


text:
2016 Reser's Tournament of Champions
When: 11 a.m.-10 p.m. (approximately) Friday and 10 a.m.-6:45 p.m. (approximately) Saturday. The semifinals for both the varsity and junior varsity tournaments will start at 10 a.m. Saturday, with the finals beginning around 4:30 p.m.
Where: Liberty High School, 21945 NW Wagon Way, Hillsboro
Admission: $12/day for adults (two-day passes for $18), $3/day for children (two-day passes for $5). Concessions will be on site and open at 10 a.m. Friday and 7 a.m. Saturday for breakfast, lunch and dinner.
Class 6A: Canby, Century, David Douglas, Glencoe, McNary, Newberg, North Medford, Roseburg, Sprague, Sunset, West Linn
Class 5A: Crater, Dallas, Eagle Point, Hermiston, Hillsboro, Lebanon, Redmond, Sandy
Class 4A: Crook County (reigning champion), Marshfield, Scappoose, Sweet Home
Class 2A/1A: Culver
Wrestlers to watch at 2016 Reser's Tournament of Champions multimedia slideshow
Recap of last year's tournament
Wrestling Notebook: David Douglas, Hillsboro chase titles; McComas turns heads at Banks
For more information on the tournament, visit www.reserstoc.com


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The 109th Airlift Wing from Stratton Air National Guard Base rescued seven badly burned Korean sailors Friday. The incident began Wednesday when a South Korean fishing ship caught fire near Antarctica, where National Guard members were on duty. The local National Guard unit supports the National Science Foundation's Antarctic program by flying in supplies on LC-130 Hercules planes, which land on the glacier ice on skis. Those planes have been used to evacuate patients in ...
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The Story
Disillusioned with his life, a man escapes into the wilderness on a journey of self discovery & finds a mysterious place that offers a chance to go back and change his past.
Harmon, an every day man struggling with his identity and his place in life, picks up and decides he needs to step away from everything in an effort to gain some perspective.
Leaving behind his wife, Clara, and his son Will, the light of his life, he decides to take some time away and venture into the mountain clad wilderness surrounding their town; a place he and Clara had visited before Will was born.
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Determined, Harmon carries on despite all of this.
As he continues on, he has meets another someone. An older man named Bill, who offers him some guidance in the way of directions to the place Harmon is looking for – a cabin that he and Clara had shared years ago, as well as advice to stay clear of the shady couple Harmon had run into earlier.
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Bill finds Harmon in the water in just enough time to save his life, taking Harmon back to his own cabin in the forest.
As time goes on and Harmon heals, Bill becomes a friend, talking to Harmon about life outside of the wild and the issues troubling him.
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Just as he decides to go back home, a troubling truth is revealed, leaving Harmon questioning everything that he's come to learn about himself, Bill, the wilderness and the shady couple there.
Taking into account everything that he's learned while away, Harmon takes advantage of the opportunity he's given to go back and fix the mistakes of his past, answering the age old question: "If you were given a chance to go back and change something in your past, would you?


text:
Former Michigan State head coach Nick Saban has made it a point in recent years to head back to Michigan to recruit some of the top players in the state. Saban's biggest coup so far has been luring Mark Ingram from Fint and this recruiting season Saban is again recruiting one of Flint's best as Alabama officially offered Powers Catholic defensive lineman Danny O'Brien.
"I called Coach Saban, and he told me about the programs they have at the school and all of the information about Alabama," O'Brien told Tidesports.com. "Then he ended the conversation by saying I had a scholarship offer. "It's real exciting for me. I've been wanting this offer for a while."\
O'Brien is a 6-foot-3, 280-pound tackle who totaled 90 tackles and nine sacks last year.
O'Brien also has offers from Michigan and Michigan State.
"I love the SEC. You can't deny SEC football with (five) national championships in a row," O'Brien told Tidesports.com. "I definitely want to play on that big stage. I actually visited Tennessee when they played Alabama. The SEC atmosphere is hard to beat."


text:
Filter by Vehicle
You have selectedAdd New
2009 Cadillac DTS
4-Speed Automatic Transmission, 4T80E
-- Select Engine --
Engine Description RPO Code
The drop down menu includes engine codes with descriptions and engine sizes. Please use the following tutorial to locate the actual engine size of your vehicle; it could help you make the correct selection.
- 8 Cyl 4.6L SFI, DOHC (Northstar) L37
- 8 Cyl 4.6L SFI, DOHC (Northstar) LD8
-- Select Transmission --
Transmission Description RPO Code
- 4-Speed Automatic Transmission, 4T80E MH1
-- Select Model Code --
Model Code Description RPO Code
A GM Model Code can be found on both the Service Tag and Service Parts Identification Tag.
- Deville Funeral Coach 6KH69
- DTS 4 Door 6KD69
- DTS Limousine 6KJ69
- Front End Sheet Metal, Heater, Vehicle Maintenance
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- Brakes
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- Engine Assembly-Front Cover & Cooling
- Engine Assembly-Manifolds & Fuel Related Parts
- Engine Assembly-Oil Pump, Pan & Related Parts
- Engine To Transmission Mounting
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Interior Trim, Front Seat Trim, Seat Belts
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- Inflatable Restraint System/Roof Side
- Roof Headliner
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- Seat Assembly/Driver-Cushion
- Seat Assembly/Front-Center
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Parts found for 2009 Cadillac DTS > Front End Sheet Metal, Heater, Vehicle Maintenance > Hoses & Pipes/Heater
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CLAMP, Hose (Radiator,Heater,A/C)
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text:
View from Above
The Osa Peninsula's Cape Matapalo and part of Bosque's 650 acres jut into the sea where the Golfo Dulce meets the Pacific. This aerial shot of Bosque shows the resort's dining pavilion and some ocean-view cabinas. Wildlife-studded rain-forest trails lead to beaches and surfing and snorkeling sites.


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The Rise and Fall of American Technology
by Lynn G. Gref
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Very few bright ideas ever make it to the marketplace. Explaining the process by which new technologies are born and find their way into products, Dr. Gref makes ample use of historical examples that intrigue and inform the reader while illustrating the concepts presented.
He contrasts the commonly-held perception that the pace of technology is accelerating with the historical record. He highlights the people and the organizations which are responsible for Americas technological largesse. The book follows the money to uncover the underlying trends.
The beginning of a decline in technology development is detected using indirect indicators for clues. Impacts on the formation of companies, employment and productivity provide sobering reasons to enlighten others and demand a change in course. After considering the possibilities, the book proposes several constructive actions which avoid the proverbial tendency to throw more money at the problem.
The goal of the book is to provoke discussion and promote action where appropriate. Americans standard of living is at stake. Tech-savvy readers will want to understand this issue so as to influence others. Long-range thinkers will want to factor these considerations into their prognostications. The titans of the technology-based companies can develop new and improved strategies based on the findings of this book. And, our elected officials may want to act before a catastrophic disaster confronts the nation.
This book will strike a chord with everyone who is interested in Americas future economic health. Specific audience groups include scientists, engineers, entrepreneurs, employees in technology based companies, government and corporate policymakers deciding the future of research and development (R&D) programs, government workers involved in the execution of government R&D programs and those thinking about a career in R&D.
It is complementary to such works as Politics and Economics in America: The Way We Came to Be, by Richard E. Carmichael (Krieger Publishing Company, 1998), which explores political and economic history in order to explain the emergence of the United States world economic dominance. Carmichael's book makes recommendations on how government could assist Americas businesses in maintaining our economic leadership, but it does not address any aspects of technology development and associated issues. Closing the Innovation Gap by Judy Estrin (McGraw Hill, 2009), provides business leaders with concepts for leading their organizations so as to close the innovation gap with competitors. It focuses on the innovation environment within the organization, whereas Dr. Gref addresses the complete technology development cycle, its financing, Americas rise to global dominance, and the specter of a national decline.
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by Lynn G. Gref
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by on October 24, 2016
eBook Details
- Algora Publishing, December 2009
- Imprint:
Algora Publishing
- 9780875867557
- Language:
- English
- Download options:
- EPUB 2 (Adobe DRM)
You can read this item using any of the following Kobo apps and devices:


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Complete With 'Stompy' Denver Music, KBCO Studio C Release Ready To GoPeople line up to get their hands on the KBCO Studio C album and it usually sells out in hours.
KBCO Studio C, Volume 27The big KBCO Studio C Volume 27 album comes out Saturday, Dec. 5 at 8 a.m. at all Colorado Whole Foods Markets. The money benefits the Boulder County AIDS Project and Food Bank of the Rockies.
KBCO Celebrates Record Store Day With Studio C Vinyl ReleaseThe KBCO Studio C tradition is back, and this year the radio station is releasing a full length vinyl LP from the live performance studio.
Wife Of AEG Live's CEO Has Special Connection With 'Flight For Life'Flight For Life Colorado is the air ambulance of choice for Centura Health, The Children's Hospital, University of Colorado Hospital, numerous ski resorts, and for Chuck and Becky Morris.
CBS4, KBCO, 93.3 Team Up To Bring Relief To Wildfire VictimsMany people want to help the victims of Colorado's devastating wildfires. CBS4 teamed up with radio stations KBCO and Channel 93.3, along with AEG Live, for a concert fundraiser.


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Chocolate Bar
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Home > Indexes > Zebra > 30033
Image may not be actual.
UPC Code: 083717300335
Provantage Code: ZBRA26Y
Condition: Factory New
Printing > Printing Accessories > Media Guides
Adjustable Media Guide 105S/SE/160S/Z9X/XA
Sometimes referred to as lower media guides, Zebras edge guides work in conjunction with snap plates to ensure proper media alignment.
Shop with confidence! Provantage is an authorized Zebra dealer.


text:
Components of Internet Technology
The Internet allows users to exchange information instantly as well as receive up-to-the-minute updates on the latest news and other events in the world. A series of combined software and hardware protocols and communications come together to make possible the technology that allows immediate information exchange across the world.
How the Internet Connects
Most connections start with a modem, or modem and router, which connect through any combination of coaxial cable, Ethernet cables and phone lines. Each modem and computer connected to the Internet is assigned an an Internet protocol (IP) address. Data is transmitted over these lines, between two or more IP addresses, using a combination of protocols and programming languages, which display in the web browser as a web page, or allow you to download software, applications and other files from the Internet. Data transmitted over the Internet is assembled into packets which contain the data itself, as well as routing information including the source IP address and destination address, which are transmitted back and forth between one or more computers.
Protocols Used on the Internet
The Internet transmits information using a series of protocols, such as hypertext transfer protocol for web browser and web page information, file transfer protocol to transmit files such as documents, music files, video files, and audio files, and post office protocol and simple mail transfer protocol to send and receive email messages. The protocols determine how the data is formatted and routed over the Internet connection.
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Upsets open up a bracket, allowing players to make surprising runs or other seeded players to have an easier path to their ultimate goal.
During the French Open, I am going to take a look at how each of the upsets impacts the rest of the draw and why the seeded player went down. A tournament with a draw of 128 usually produces a few shockers along the day.
The first round had very few upsets, but one very big shocker.


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realmagick.com The shrine of knowledge.
A selection of articles related to expression.
Original articles from our library related to the Expression. See Table of Contents for further available material (downloadable resources) on Expression.
- Ritual - Expression of Will, Art and Creativity
- Most of our lives involve traditions, regular observances. These might relate to annual or seasonal holiday, it might just be meeting a friend every year at a particular time to go shopping, or have a beer and catch up. The main thing these informal...
Paganism & Wicca >> Ritual
- From Agape to Praxis: The Fourfold Nature of Love
- It is said that one can tell what a culture knows best by counting the number of words their language uses to describe a concept. Eskimos have many words for snow and the classical Greeks had many words for love. I have isolated four Greek words that I feel...
Body Mysteries >> Sexuality
- Aspects of Religion: A Wiccan Viewpoint
- Among early Pagans, religion was a fact taken for granted, "requiring no explanation." There was no need to define religion because religion was a part of each persons being. "We have not yet encountered in Egyptian and Babylonian literature a...
Religion & Philosophy >> Religions
- Bringing it Down to Earth: A Fractal Approach
- 'Clouds are not spheres, mountains are not cones, coastlines are not circles, and bark is not smooth, nor does lightning travel in a straight line.' B. Mandelbrot W e want to think about the future - it's our nature. Unlike other creatures, humans possess an...
Mystic Sciences >> Astrology
- Values in the Balance
- We in the Pagan community pride ourselves on our tolerance for difference. Differences in lifestyle, sexual preference, orientation and expression, race, orthodoxy, tradition, ritual structure, costumes, positions on nudity, personal interaction styles, etc....
Holidays >> Mabon
Expression is described in multiple online sources, as addition to our editors' articles, see section below for printable documents, Expression books and related discussion.
Suggested News Resources
- Kim Kardashian West & Encouraging Female Expression Instead of Repression
- Whether you're cool with Kim posting an old, somewhat-nude selfie of herself or not, is judging someone negatively for self-expression what we want to be "teaching" women? Kim Kardashian West responded to criticism with such sass that many, including ...
- Seether's Shaun Morgan Accepts Artistic Expression Award
- For his efforts, the vocalist has been honored with the Artistic Expression Award at the Awards of Excellence from the National Council for Behavioral Health.
- Tunable Form of CRISPR Is an Efficient Regulator of Stem Cell Expression
- "We developed clustered regularly interspaced short palindromic repeat interference (CRISPRi) to repress gene expression in human induced pluripotent stem cells (iPSCs)," the authors wrote. "CRISPRi, in which a doxycycline-inducible deactivated Cas9 is ...
- CRISPRi-Controlled Gene Expression
- A team of researchers at the Gladstone Institutes in San Francisco, California, has used a version of CRISPR gene editing known as CRISPR interference (CRISPRi) to reversibly and accurately suppress gene expression in induced pluripotent stem cells ...
- 'With more repression comes greater expression'
- More than 15 years ago, I was attacked for my film Dil Pe Mat Le Yaar!! for a so-called "objectionable" piece of dialogue. Some elements from the Shiv Sena vandalised my office, abused me, and asked me to delete the line from the film.
Great care has been taken to prepare the information on this page. Elements of the content come from factual and lexical knowledge databases, realmagick.com library and third-party sources. We appreciate your suggestions and comments on further improvements of the site.
Expression Topics
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