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Journal articles on the topic 'Ions ionisés'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Stankevič, Jolita, Aistė Audickaitė, Simona Šilovė, et al. "EFFECT OF IONISED (ELECTROLYSED) WATER ON THE RAT EMBRYO DEVELOPMENT." Journal of Environmental Engineering and Landscape Management 28, no. 1 (2020): 28–35. http://dx.doi.org/10.3846/jeelm.2020.11831.

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The aim of this study was to investigate the effects ionised water has on embryonic development using Wistar rat animal model. For that purpose, alkaline and acidic water was prepared with a domestic water ioniser. It was found that the concentrations of Cl–, SO42– ions increased in acidic water, while in alkaline water, Ca2+ concentration decreased and halogenated hydrocarbon concentrations exceeded permitted levels. The animals were given test alkaline and acidic water, as well as tap water as control. After three months, female rats were mated. On the 21st day of gestation, they were euthan

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2

Colburn, AW, Peter J. Derrick, and Richard D. Bowen. "Peter J Derrick and the Grand Scale ‘Magnificent Mass Machine’ mass spectrometer at Warwick." European Journal of Mass Spectrometry 23, no. 6 (2017): 319–26. http://dx.doi.org/10.1177/1469066717737643.

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The value of the Grand Scale ‘Magnificent Mass Machine’ mass spectrometer in investigating the reactivity of ions in the gas phase is illustrated by a brief analysis of previously unpublished work on metastable ionised n-pentyl methyl ether, which loses predominantly methanol and an ethyl radical, with very minor contributions for elimination of ethane and water. Expulsion of an ethyl radical is interpreted in terms of isomerisation to ionised 3-pentyl methyl ether, via distonic ions and, possibly, an ion-neutral complex comprising ionised ethylcyclopropane and methanol. This explanation is co

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3

Ratner, Mark A., and D. F. Shriver. "Polymer Ionics." MRS Bulletin 14, no. 9 (1989): 39–51. http://dx.doi.org/10.1557/s0883769400061728.

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The preparation, utilization, and understanding of high polymers represents one of the great triumphs of chemistry and materials science in the 20th century. Synthetic polymers have traditionally been used as structural materials and electrical insulators. Biopolymers often exhibit interesting electrical response phenomena. A recent article in the MRS BULLETIN, for example, discussed piezoelectric properties of both synthetic and biopolymer systems. The newer, synthetic electroactive polymeric materials, however, represent one of the most exciting current areas of polymer materials science.Man

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4

McClelland, A. F., C. W. P. Palmer, E. C. Finch, and J. D. Silver. "Laser resonance studies in highly ionised recoil ions." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 9, no. 4 (1985): 710–12. http://dx.doi.org/10.1016/0168-583x(85)90398-2.

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5

Saha, B., A. K. Das, and P. K. Mukherjee. "Radiative transitions in highly ionised silicon-like ions." European Physical Journal D 14, no. 1 (2001): 33–37. http://dx.doi.org/10.1007/s100530170231.

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6

Jumadilov, T. K., B. Totkhuskyzy, L. K. Yskak, and J. V. Gražulevicius. "EXTRACTION OF YTTRIUM IONS BY INTERPOLYMER SYSTEMS BASED ON INDUSTRIAL IONITES." Chemical Journal of Kazakhstan 73, no. 1 (2021): 134–41. http://dx.doi.org/10.51580/2021-1/2710-1185.14.

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The extraction of yttrium ions by interpolymer systems based on industrial ionites: KU 2-8 cationite and AB-17 anionite was studied. The dependences of the yttrium content in the aqueous medium after sorption by the interpolymer system were studied KU 2-8:AB17-8 depending on the time, the degree of binding of the polymer chain (with respect to yttrium ions) by the initial ionites and interpolymer systems KU 2-8: AB-17-8. The maximum content of yttrium ions in the aqueous medium after sorption is observed at ratios of 3:3 and 4: 2 and the duration of remote interaction is 88 hours. At the same

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7

Das, Soumitra, Pramod Sharma, Purav M. Badani, and Rajesh K. Vatsa. "Ionisation of methyl iodide clusters using nanosecond laser pulses: detection of multiply charged positive ions, negative ions and energetic electrons." RSC Advances 5, no. 12 (2015): 8887–94. http://dx.doi.org/10.1039/c4ra14556a.

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Methyl iodide clusters have been ionised using laser pulses of intensity ∼10<sup>9</sup> W cm<sup>−2</sup> at 266, 355, 532 and 1064 nm and the ions produced in the laser–cluster interaction were analysed with a time-of-flight mass spectrometer.

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8

Kononova, O. N., N. G. Goryaeva, and Yu S. Kononov. "The sorption of thiocyanate ions on complex-forming ionites." Russian Journal of Physical Chemistry A 85, no. 6 (2011): 1041–46. http://dx.doi.org/10.1134/s0036024411060197.

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9

Peter, S., and M. S. Selvakumar. "Synthesis and Characterization of Phthalic Acid Complexes with Biologically Active Metal Ions." Mapana - Journal of Sciences 1, no. 2 (2003): 7–11. http://dx.doi.org/10.12723/mjs.2.2.

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Animal and plants contain carboxylic acids, which are involved in their metabolic reactions. It is also well known that metal ions are involved in their metabolic reactions. So far the complexation of carboxylate ions with metal ions has been extensively studied. Since neutral or acidic medium is existing in most of the biological reactions in animals and plants it is interesting to study the complexation of organic carboxylic acids in neutral medium with biologically active metal ions such as manganese, cobalt, nickel, copper and zinc. Complexes of phthalic acid were prepared in neutral mediu

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10

Selvakumar, M. S., and S. R. Bheeter. "Synthesis and Characterization of Benzoic Acid Complexes with Biologically Active Metal Ions." Mapana - Journal of Sciences 4, no. 1 (2005): 85–89. http://dx.doi.org/10.12723/mjs.6.15.

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Animal and plants contain carboxylic acids, which are involved in their metabolic reactions. It is also well known that metal ions are involved in their metabolic reactions. So far the complexation of carboxylate ions with metal ions has been extensively studied. Since neutral or acidic medium is existing in most of the biological reactions in animals and plants it is interested to study the complexation of organic carboxylic acids in neutral medium with biologically active metal ions such as manganese, cobalt, nickel, copper and zinc. Complexes of benzoic acid were prepared in neutral medium

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11

Vaeck, Nathalie, and Jørgen E. Hansen. "Auger decay of slow highly-ionised ions neutralised at surfaces." Surface Science 269-270 (May 1992): 596–600. http://dx.doi.org/10.1016/0039-6028(92)91316-4.

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12

Heinäsmäki, Sami. "IONIS: Approximate atomic photoionization intensities." Computer Physics Communications 183, no. 2 (2012): 431–37. http://dx.doi.org/10.1016/j.cpc.2011.09.011.

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13

Verma, Updesh, and A. K. Sharma. "Laser focusing and multiple ionization of Ar in a hydrogen plasma channel created by a pre-pulse." Laser and Particle Beams 29, no. 2 (2011): 219–25. http://dx.doi.org/10.1017/s0263034611000188.

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AbstractA model for plasma channel formation by a laser pre-pulse in a low Z gas (Hydrogen) embedded with high Z atoms (Ar) is developed. The laser of intensity I ≅ 1014 W/cm2 ionizes hydrogen atoms fully whereas Ar atoms are ionized only singly. After the first pulse is gone, plasma expands on the time scale of a nanosecond to produce a hydrogen plasma channel with minimum density on the axis. A second intense short pulse laser of intensity I ≥ 1016 W/cm2 gets focused. It tunnel ionizes the remaining Ar. The Ar acquires Ar8+ charge state after loosing 8 ions and acquires Ne like configuration

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14

Wright, Andrew D., and Richard D. Bowen. "Investigation of the mechanism of alkyl radical elimination from ionised pentenyl methyl and hexenyl methyl ethers by analysis of the collision-induced dissociation mass spectra of C4H7O+ and C5H9O+ ions." Canadian Journal of Chemistry 71, no. 7 (1993): 1073–85. http://dx.doi.org/10.1139/v93-143.

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Collision-induced dissociation (CID) mass spectra are reported for C4H7O+ and C5H9O+ ions generated by loss of an alkyl radical from 11 isomers of C5H9OCH3+• and 8 isomers of C6H11OCH3+• produced by ionisation of alkenyl methyl ethers derived from stable alkenols. The oxonium product ions have acyclic structures (CH=CHCH=O+CH3 for C4H7O+; CH2=CH(CH3)C=O+CH3, CH3CH=CHCH=O+CH3, or CH2=(CH3)CCH=O+CH3 in the case of C5H9O+). Elimination of a methyl radical does not always occur by simple α-cleavage. Expulsion of an alkyl substituent attached to a carbon atom at either end of the C=C double bond al

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15

Maquestiau, A., R. Flammang, P. Meyrant, H. E. Audier, and A. Milliet. "Structures Des Ions [M-CH3]+ Provenant de la Fragmentation de la 2-Heptanone Ionisée." Bulletin des Sociétés Chimiques Belges 92, no. 9 (2010): 773–77. http://dx.doi.org/10.1002/bscb.19830920903.

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16

Karapanayiotis, Thanasis, та Richard D. Bowen. "Differentiation of Ionised Benzimidazole from its Isomeric α-Distonic Ion by Collision-Induced Dissociation and Neutralisation—Reionisation Mass Spectrometry". European Journal of Mass Spectrometry 11, № 4 (2005): 381–87. http://dx.doi.org/10.1255/ejms.775.

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Ionised benzimidazole and its isomeric α-distonic ion (or ionised ylid) have been examined by recording their metastable ion, collision-induced dissociation and neutralisation–reionisation mass spectra. These tautomers may be distinguished by careful consideration of key features of the collision-induced dissociation spectra, with or without prior neutralisation and reionisation. Formation of doubly-charged ions by charge stripping occurs preferentially when the α-distonic ion is subjected to collision. This α-distonic ion survives neutralisation and reionisation, thus establishing that the co

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17

Mason, Helen E. "Spectroscopic Diagnostics for Ions Observed in Solar and Cosmic Plasmas." International Astronomical Union Colloquium 115 (1990): 11–20. http://dx.doi.org/10.1017/s0252921100012057.

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AbstractThe X-ray wavelength region (1-200Å) is rich in spectral lines from highly ionised systems. Spectra from the solar atmosphere have been studied extensively with various instruments covering different wavelength regions. In this paper, we discuss the solar spectral line emission with particular reference to iron ions and helium like ions observed during solar flares. The atomic processes involved in the calculation of theoretical intensities for low density plasmas are outlined together with the diagnostic properties of the emission lines. Comparisons are made with available cosmic X-ra

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18

Ryan Cross. "Ionis will acquire former subsidiary Akcea." C&EN Global Enterprise 98, no. 34 (2020): 13. http://dx.doi.org/10.1021/cen-09834-buscon15.

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19

de Petris, Giulia, Antonella Cartoni, Marzio Rosi, Anna Troiani, Giancarlo Angelini, and Ornella Ursini. "Isotope Exchange in Ionised CO2/COMixtures: The Role of Asymmetrical C2O3+ Ions." Chemistry - A European Journal 10, no. 24 (2004): 6411–21. http://dx.doi.org/10.1002/chem.200400483.

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20

Moriya, Makoto, Hiro Kitaguchi, Eiji Nishibori, Hiroshi Sawa, Wataru Sakamoto, and Toshinobu Yogo. "Molecular Ionics in Supramolecular Assemblies with Channel Structures Containing Lithium Ions." Chemistry - A European Journal 18, no. 48 (2012): 15305–9. http://dx.doi.org/10.1002/chem.201202056.

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21

Karapanayiotis, Thanasis, Georgina Dimopoulos-Italiano, Richard D. Bowen та Johan K. Terlouw. "Reactions of ionised pyridazine, aminopyrazine and aminopyridine and their isomeric α-distonic ions". International Journal of Mass Spectrometry 236, № 1-3 (2004): 1–9. http://dx.doi.org/10.1016/j.ijms.2004.04.017.

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22

Cristofoli, Mignon, Chin-Ping Kung, Jonathan Hadgraft, Majella E. Lane, and Bruno C. Sil. "Ion Pairs for Transdermal and Dermal Drug Delivery: A Review." Pharmaceutics 13, no. 6 (2021): 909. http://dx.doi.org/10.3390/pharmaceutics13060909.

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Ion pairing is a strategy used to increase the permeation of topically applied ionised drugs. Formation occurs when the electrostatic energy of attraction between oppositely charged ions exceeds their mean thermal energy, making it possible for them to draw together and attain a critical distance. These ions then behave as a neutral species, allowing them to partition more readily into a lipid environment. Partition coefficient studies may be used to determine the potential of ions to pair and partition into an organic phase but cannot be relied upon to predict flux. Early researchers indicate

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23

Donnelly, IJ, and EK Rose. "Ion Densities in Low Temperature Nitrogen Plasmas." Australian Journal of Physics 43, no. 1 (1990): 45. http://dx.doi.org/10.1071/ph900045.

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A cross-section library for the electron ionisation of hydrogen and nitrogen molecules, atoms and ions has been assembled and used for the derivation of reaction rate coefficients assuming a Maxwellian distribution of electron energies. For fixed electron temperatures, the steady-state and time-dependent ionisation of nitrogen molecules have been calculated for conditions relevant to glow discharge plasmas in which the dominant recombination mechanism occurs via the plasma-wall interaction. The analysis shows that there is a threshold electron temperature below which there is no steady-state i

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24

Hegele, Robert A., and Sotirios Tsimikas. "Lipid-Lowering Agents." Circulation Research 124, no. 3 (2019): 386–404. http://dx.doi.org/10.1161/circresaha.118.313171.

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Several new or emerging drugs for dyslipidemia owe their existence, in part, to human genetic evidence, such as observations in families with rare genetic disorders or in Mendelian randomization studies. Much effort has been directed to agents that reduce LDL (low-density lipoprotein) cholesterol, triglyceride, and Lp[a] (lipoprotein[a]), with some sustained programs on agents to raise HDL (high-density lipoprotein) cholesterol. Lomitapide, mipomersen, AAV8.TBG.hLDLR, inclisiran, bempedoic acid, and gemcabene primarily target LDL cholesterol. Alipogene tiparvovec, pradigastat, and volanesorsen

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25

Franchoo, S. "Low-energy experiments at the S3 spectromet." Nuclear Science and Technology 9, no. 2 (2019): 31–36. http://dx.doi.org/10.53747/jnst.v9i2.50.

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With the advent of the Spiral-2 linear accelerator and the associated S3 spectrometer at the Ganil laboratory in France, new realms of intermediate-mass N=Z and very heavy nuclei will soon become available for research in nuclear structure. After their production and selection in the spectrometer, the ions of interest will be stopped in a buffer gas, neutralised, resonantly re-ionised, cooled and bunched. This will bring us in an adequate position to perform laser spectroscopy, mass measurements and decay spectroscopy of their ground and isomeric states. In this contribution we report on the o

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26

Wielińska, Justyna, Andrzej Nowacki, and Beata Liberek. "5-Fluorouracil—Complete Insight into Its Neutral and Ionised Forms." Molecules 24, no. 20 (2019): 3683. http://dx.doi.org/10.3390/molecules24203683.

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5-Fluorouracil (5FU), a common anti-cancer drug, occurs in four tautomeric forms and possesses two potential sites of both protonation and deprotonation. Tautomeric and resonance structures of the ionized forms of 5FU create the systems of connected equilibriums. Since there are contradictory reports on the ionized forms of 5FU in the literature, complex theoretical studies on neutral, protonated and deprotonated forms of 5FU, based on the broad spectrum of DFT methods, are presented. These indicate that the O4 oxygen is more willingly protonated than the O2 oxygen and the N1 nitrogen is more

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27

Hall, C. M. "<i>Letter to the Editor</i>An analogy to the Reynolds number for the neutral gas component of a weak plasma." Annales Geophysicae 19, no. 1 (2001): 131–34. http://dx.doi.org/10.5194/angeo-19-131-2001.

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Abstract. The Reynolds number Re is used as a metric to assess whether or not a flow may contain turbulence. In a weakly ionised gas with an external electric field imposed, ions exert a drag on the neutral particles. Thus, a component of the neutral motion is attributable to the ion-drag. An analogy to Re has been proposed in which the ion-drag-induced velocity contribution to the neutral motion is used. This analogy thus represents the destabilising effect of the electric field on the neutral dynamics. Here quantisation of this proposed metric is investigated.Key words. Meteorology and atmos

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28

Flörs, A., J. Spyromilio, K. Maguire, S. Taubenberger, W. E. Kerzendorf, and S. Dhawan. "Limits on stable iron in Type Ia supernovae from near-infrared spectroscopy." Astronomy & Astrophysics 620 (December 2018): A200. http://dx.doi.org/10.1051/0004-6361/201833512.

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We obtained optical and near infrared spectra of Type Ia supernovae (SNe Ia) at epochs ranging from 224 to 496 days after the explosion. The spectra show emission lines from forbidden transitions of singly ionised iron and cobalt atoms. We used non-local thermodynamic equilibrium (NLTE) modelling of the first and second ionisation stages of iron, nickel, and cobalt to fit the spectra using a sampling algorithm allowing us to probe a broad parameter space. We derive velocity shifts, line widths, and abundance ratios for iron and cobalt. The measured line widths and velocity shifts of the singly

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29

S., V. "To the characteristics of streptococcus scarlet fever. I. M. Velikanova and G. Ya. Ionis (J. Exp. Biol., 1926, No. 6)." Kazan medical journal 22, no. 7 (2021): 865. http://dx.doi.org/10.17816/kazmj79527.

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According to the observations of IM Velikanov and G. Ya. Ionis (J. Exp. Biol., 1926, No. 6) death from scarlet fever is not associated with the presence in the blood of the deceased necessarily homolytic streptococcus.

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30

Yergozhin, Yedil, B. Taussarova, R. Ashkeyeva, and L. Tugelbayeva. "Investigation of complexing ability of ionites with various groups to some heavy and transition metal ions." Chemical Bulletin of Kazakh National University, no. 1 (May 14, 2013): 84. http://dx.doi.org/10.15328/chemb_2013_184-89.

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31

Yusupaliev, R., B. Kh Yunusov, and M. M. Azimova. "The composition of natural waters of some source rivers of the republic of Uzbekistan, used in the thermal power engineering and the results of the experimental researches at preliminary and ion exchange treatment of water." E3S Web of Conferences 139 (2019): 01083. http://dx.doi.org/10.1051/e3sconf/201913901083.

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The article describes the possibility of use of the natural waters for generation of steam at thermal electric power stations. The chemical composition of some source rivers of the Republic of Uzbekistan is provided as well as its influence to the processing of water and contamination of the steam in the thermal energy engineering. The conditions of the preliminary chemical treatment of the natural water at TashTPP with the use of aluminum sulphate are described, as well as the experimental unit for production of the coagulant in the preliminary treatment and clarification of water; the experi

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32

McCaleb, Michael, Jason Lickliter, Andrew Dibble, et al. "Transmembrane Protease, Serine 6 (TMPRSS6) Antisense Oligonucleotide (IONIS-TMPRSS6-LRX) Reduces Plasma Iron Levels of Healthy Volunteers in a Phase 1 Clinical Study." Blood 132, Supplement 1 (2018): 3634. http://dx.doi.org/10.1182/blood-2018-99-115339.

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Abstract Iron overload is the major cause of morbidity and mortality in beta-thalassemia patients. The low levels of beta-globin and ineffective erythropoiesis in these patients result in the suppression of hepcidin. The inappropriately low levels of hepcidin trigger an increased absorption of dietary iron and increased iron release from storage, causing iron overload. Expression of hepcidin, which is predominately produced in the liver, is negatively regulated by the transmembrane protease, serine 6 (TMPRSS6). Mouse and human genetic data indicated that lowering TMPRSS6 expression could up-re

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33

Rahayu, Riana Suastari, Iryanti Eka Suprihatin, and Wiwik Susanah Rita. "IDENTIFIKASI PEWARNA MERAH K3 (CI 15585) DALAM PRODUK KOSMETIK SEDIAAN PERONA MATA SECARA LC- MS/MS." CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) 5, no. 1 (2017): 34. http://dx.doi.org/10.24843/ck.2017.v05.i01.p05.

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ABSTRAK : Identifikasi merah K3 dalam sediaan perona mata secara LC-MS/MS dilakukan untuk mengkonfirmasi keberadaannya yang sering kali ditemukan dalam konsentrasi kecil. Metode spektrofotometeri UV-VIS dan HPLC tidak cukup untuk mengkonfirmasi keberadaan merah K3 yang dinyatakan positif dengan metode KLT. Optimasi metode dilakukan pada kondisi spektrometer massa dan sistem kromatografi cair yang berlaku pada LC-MS/MS sebelum dilakukan proses identifikasi. Hasil optimasi menunjukkan identifikasi merah K3 dengan LC-MS/MS menggunakan teknik ionisasi elektrospray (ESI) dan sistem Multiple Reactio

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34

Antoniotti, Paola, Paola Facchini, and Felice Grandinetti. "FSO+ and FSO2+ ions from ionised sulfur oxyfluorides: a computational investigation on the structure, stability, and thermochemistry." Chemical Physics Letters 372, no. 3-4 (2003): 455–63. http://dx.doi.org/10.1016/s0009-2614(03)00442-1.

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35

Al-Tannak, Naser F., Sami Bawazeer, and David G. Watson. "Exploring the Effect of Buffer Strength on the Retention Time of Weak Acids, Neutral and Weak Bases in Hydrophilic Interaction Liquid Chromatography (HILIC) Mode." Current Analytical Chemistry 15, no. 1 (2018): 34–46. http://dx.doi.org/10.2174/1573411014666180806152818.

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Background: Hydrophilic Interaction Liquid Chromatography (HILIC) orthogonal to conventional reversed phase High-Performance Liquid Chromatography (HPLC) mode allowing separation of polar compounds. HILIC has been reported to be an alternative to normal phase liquid chromatography, yet the separation mechanism reported in HILIC is much more complicated than that in normal phase liquid chromatography. Objective: To investigate the effect of water layer thickness on silica gel and the amount of ammonium ions present within the buffer on retention mechanism in hydrophilic interaction chromatograp

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36

Ferrone, Jason D., Gourab Bhattacharjee, Alexey S. Revenko, et al. "IONIS-PKKRx a Novel Antisense Inhibitor of Prekallikrein and Bradykinin Production." Nucleic Acid Therapeutics 29, no. 2 (2019): 82–91. http://dx.doi.org/10.1089/nat.2018.0754.

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37

Garber, Ken. "Big win possible for Ionis/Biogen antisense drug in muscular atrophy." Nature Biotechnology 34, no. 10 (2016): 1002–3. http://dx.doi.org/10.1038/nbt1016-1002.

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38

Kuźma, B., K. Murawski, Z. E. Musielak, S. Poedts, and D. Wójcik. "Spatial variation in the periods of ion and neutral waves in a solar magnetic arcade." Astronomy & Astrophysics 652 (August 2021): A88. http://dx.doi.org/10.1051/0004-6361/202038003.

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Context. We present new insight into the propagation of ion magnetoacoustic and neutral acoustic waves in a magnetic arcade in the lower solar atmosphere. Aims. By means of numerical simulations, we (a) study two-fluid waves propagating in a magnetic arcade embedded in the partially ionised, lower solar atmosphere and (b) investigate the effect of the background magnetic field configuration on the observed wave-periods. Methods. We considered a 2D approximation of the gravitationally stratified and partially ionised lower solar atmosphere consisting of ion plus electron and neutral fluids that

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39

Teng, Yunfei, Pei Liu, Lin Fu, Xiang-Yu Kong, Lei Jiang, and Liping Wen. "Bioinspired nervous signal transmission system based on two-dimensional laminar nanofluidics: From electronics to ionics." Proceedings of the National Academy of Sciences 117, no. 29 (2020): 16743–48. http://dx.doi.org/10.1073/pnas.2005937117.

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Mammalian nervous systems, as natural ionic circuitries, stand out in environmental perception and sophisticated information transmission, relying on protein ionic channels and additional necessary structures. Prosperously emerged ionic regulated biomimetic nanochannels exhibit great potentialities in various application scenarios, especially signal transduction. Most reported direct current systems possess deficiencies in informational density and variability, which are superiorities of alternating current (AC) systems and necessities in bioinspired nervous signal transmission. Here, inspired

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40

MANIL, B., P. BODUCH, A. CASSIMI, et al. "COLLISION INDUCED FRAGMENTATION OF FULLERENE CLUSTERS (C60)n." International Journal of Modern Physics B 19, no. 15n17 (2005): 2345–52. http://dx.doi.org/10.1142/s0217979205030955.

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Clusters of C 60 fullerenes are (multi)-ionised in collisions with O 5+ projectiles at a collision energy of 100 keV. The dominant fragmentation channels are analysed by time-of-flight mass spectrometry for different cluster size distributions. Singly charged [Formula: see text], ions are found to be the dominant fragments, in 25% connected with the loss of one or more C 2-units. This result is explained by the large charge mobility in fullerene clusters. Doubly charged fragments, in form of [Formula: see text] and [Formula: see text], contribute to the observed spectrum with less than 5–10% o

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41

Marcovina, Santica M., Nicholas J. Viney, Steven G. Hughes, Shuting Xia, Joseph L. Witztum, and Sotirios Tsimikas. "Temporal variability in lipoprotein(a) levels in patients enrolled in the placebo arms of IONIS-APO(a)Rx and IONIS-APO(a)-LRx antisense oligonucleotide clinical trials." Journal of Clinical Lipidology 12, no. 1 (2018): 122–29. http://dx.doi.org/10.1016/j.jacl.2017.10.024.

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42

Kakutani, Koji, Yoshinori Matsuda, Teruo Nonomura, Yoshihiro Takikawa, Takeshi Takami, and Hideyoshi Toyoda. "A Simple Electrostatic Precipitator for Trapping Virus Particles Spread via Droplet Transmission." International Journal of Environmental Research and Public Health 18, no. 9 (2021): 4934. http://dx.doi.org/10.3390/ijerph18094934.

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The purpose of this study was to develop a simple electrostatic apparatus to precipitate virus particles spread via droplet transmission, which is especially significant in the context of the recent coronavirus disease 2019 (COVID-19) pandemic. The bacteriophage φ6 of Pseudomonas syringae was used as a model of the COVID-19 virus because of its similar structure and safety in experiments. The apparatus consisted of a spiked, perforated stainless plate (S-PSP) linked to a direct-current voltage generator to supply negative charge to the spike tips and a vessel with water (G-water) linked to a g

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Fernández-Menchero, Luis, Catherine Ramsbottom, and Connor Ballance. "Estimating the Level of Uncertainty in Electron-Impact Excitation and Photoionisation Rates of Low-Ionised Stages of Ni Ions." Galaxies 6, no. 3 (2018): 74. http://dx.doi.org/10.3390/galaxies6030074.

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Ni iv lines can be used as diagnostics for temperature and density for various astrophysical objects. In addition, ionization of Ni2+ is one of the causes of the opacity in the interstellar medium. We calculate the photoionization of Ni2+ and the electron-impact excitation of Ni3+. We use a fully-relativistic Dirac Atomic R-Matrix Code (DARC) method. We include a large set of configurations in the expansion of the wave functions of the target, up to the n=6 atomic shell. We show preliminary results for the photoionization cross-sections of Ni2+ and the electron-impact excitation collision stre

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Benson, Merrill D., Elizabeth J. Ackermann, and Brett P. Monia. "Treatment of transthyretin cardiomyopathy with a TTR-specific antisense oligonucleotide (IONIS-TTRRx)." Amyloid 24, sup1 (2017): 134–35. http://dx.doi.org/10.1080/13506129.2017.1280015.

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Wilcock, Robert J., and Steven C. Chapra. "Diel changes of inorganic chemistry in a macrophyte-dominated, softwater stream." Marine and Freshwater Research 56, no. 8 (2005): 1165. http://dx.doi.org/10.1071/mf05049.

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Diel fluctuations of conductivity and alkalinity were measured in a macrophyte-dominated stretch of the Piako River, a rural, lowland, softwater stream in New Zealand. Both quantities exhibited elevated levels at dawn and depressed levels in the early evening suggesting that the variations might be connected with the diel cycles of macrophyte photosynthesis and respiration. A chemical analysis was used to determine which ions induced the diel variations. For low-flow periods with minimal allochthonous inputs, the changes in conductivity were correlated with calcium, magnesium and the ionised c

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PEREGUDOV, Yuri Semenovich, Elena Mikhailovna GORBUNOVA, Behzod Aminovich OBIDOV, Ksenia Borisovna KIM, and Sabuhi Ilich oglu NIFTALIEV. "STUDY OF THE SORPTION OF AMMONIUM CATIONS ON A FIBROUS CARBOXYLIC SORBENT." Periódico Tchê Química 18, no. 38 (2021): 224–41. http://dx.doi.org/10.52571/ptq.v18.n38.2021.16_peregudov_pgs_224_241.pdf.

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Background: Wastewater from the mineral fertilizer production, agribusiness containing ammonium ions causes significant harm to fish farming; therefore, it must be purified before discharge. Ion-exchange sorption is a promising method for isolating ammonium cations. The object of the study was a chemisorption fiber VION KN-1, which has developed surface and high sorption rate. Purpose: To study the sorption kinetics of ammonium cations from aqueous solutions on VION KN-1; to train an ANN to predict the degree of recovery of ammonium ions from wastewater using Statistica Neural Networks Version

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Moriya, Makoto, Hiro Kitaguchi, Eiji Nishibori, Hiroshi Sawa, Wataru Sakamoto, and Toshinobu Yogo. "Inside Cover: Molecular Ionics in Supramolecular Assemblies with Channel Structures Containing Lithium Ions (Chem. Eur. J. 48/2012)." Chemistry - A European Journal 18, no. 48 (2012): 15210. http://dx.doi.org/10.1002/chem.201290205.

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Dunn, Bruce, Gregory C. Farrington та John O. Thomas. "Frontiers in β″-Alumina Research". MRS Bulletin 14, № 9 (1989): 22–30. http://dx.doi.org/10.1557/s0883769400061704.

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Beta and β″-alumina are remarkable solid electrolytes whose study has been a principal theme in the field of solid state ionics ever since Yao and Kummer first reported the exceptionally high conductivity of sodium β-alumina in 1967. The unusual properties of sodium β-alumina stimulated widespread interest in both the science and technology of high conductivity solid electrolytes. Since Yao and Kummer's seminal work, many solid electrolytes have been explored, but interest in the β and β″-aluminas has endured, principally because of their virtually unique ability to undergo ion exchange in whi

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Robinson, Sarah, Anne Routledge, and Jane Thomas-Oates. "Characterisation and proposed origin of mass spectrometric ions observed 30 Th above the ionised molecules of per-O-methylated carbohydrates." Rapid Communications in Mass Spectrometry 19, no. 24 (2005): 3681–88. http://dx.doi.org/10.1002/rcm.2246.

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Hale, Oliver J., and Helen J. Cooper. "In situ mass spectrometry analysis of intact proteins and protein complexes from biological substrates." Biochemical Society Transactions 48, no. 1 (2020): 317–26. http://dx.doi.org/10.1042/bst20190793.

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Advances in sample preparation, ion sources and mass spectrometer technology have enabled the detection and characterisation of intact proteins. The challenges associated include an appropriately soft ionisation event, efficient transmission and detection of the often delicate macromolecules. Ambient ion sources, in particular, offer a wealth of strategies for analysis of proteins from solution environments, and directly from biological substrates. The last two decades have seen rapid development in this area. Innovations include liquid extraction surface analysis, desorption electrospray ioni

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