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Artykuły w czasopismach na temat "541.2/4"
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Sansur, Charles A., Nicholas M. Caffes, David M. Ibrahimi, Nathan L. Pratt, Evan M. Lewis, Ashley A. Murgatroyd i Bryan W. Cunningham. "Biomechanical fixation properties of cortical versus transpedicular screws in the osteoporotic lumbar spine: an in vitro human cadaveric model". Journal of Neurosurgery: Spine 25, nr 4 (październik 2016): 467–76. http://dx.doi.org/10.3171/2016.2.spine151046.
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OBJECTIVE Optimal strategies for fixation in the osteoporotic lumbar spine remain a clinical issue. Classic transpedicular fixation in the osteoporotic spine is frequently plagued with construct instability, often due to inadequate cortical screw–bone purchase. A cortical bone trajectory maximizes bony purchase and has been reported to provide increased screw pullout strength. The aim of the current investigation was to evaluate the biomechanical efficacy of cortical spinal fixation as a surgical alternative to transpedicular fixation in the osteoporotic lumbar spine under physiological loading. METHODS Eight fresh-frozen human spinopelvic specimens with low mean bone mineral densities (T score less than or equal to –2.5) underwent initial destabilization, consisting of laminectomy and bilateral facetectomies (L2–3 and L4–5), followed by pedicle or cortical reconstructions randomized between levels. The surgical constructs then underwent fatigue testing followed by tensile load to failure pullout testing to quantify screw pullout force. RESULTS When stratifying the pullout data with fixation technique and operative vertebral level, cortical screw fixation exhibited a marked increase in mean load at failure in the lower vertebral segments (p = 0.188, 625.6 ± 233.4 N vs 450.7 ± 204.3 N at L-4 and p = 0.219, 640.9 ± 207.4 N vs 519.3 ± 132.1 N at L-5) while transpedicular screw fixation demonstrated higher failure loads in the superior vertebral elements (p = 0.024, 783.0 ± 516.1 N vs 338.4 ± 168.2 N at L-2 and p = 0.220, 723.0 ± 492.9 N vs 469.8 ± 252.0 N at L-3). Although smaller in diameter and length, cortical fixation resulted in failures that were not significantly different from larger pedicle screws (p > 0.05, 449.4 ± 265.3 N and 541.2 ± 135.1 N vs 616.0 ± 384.5 N and 484.0 ± 137.1 N, respectively). CONCLUSIONS Cortical screw fixation exhibits a marked increase in mean load at failure in the lower vertebral segments and may offer a viable alternative to traditional pedicle screw fixation, particularly for stabilization of lower lumbar vertebral elements with definitive osteoporosis.
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Yan, Wei-Hong, i Wan-Yao Chen. "Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)nickel(II), C20H14N6NiS4". Zeitschrift für Kristallographie - New Crystal Structures 237, nr 2 (31.01.2022): 235–36. http://dx.doi.org/10.1515/ncrs-2021-0433.
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Abstract C20H14N6NiS4, triclinic, P 1 ‾ $P\overline{1}$ (no. 2), a = 8.519(3) Å, b = 8.5956(16) Å, c = 8.6531(17) Å, α = 116.404(3)°, β = 94.574(4)°, γ = 103.031(4)°, V = 541.0(2) Å3, Z = 1, R gt (F) = 0.0445, wR ref(F 2) = 0.1147, T = 296.15 K.
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Silva, Evandro Manoel da, Reginaldo Gomes Nobre, Leandro De Pádua Souza, Francisco Wesley Alves Pinheiro, Geovani Soares de Lima, Hans Raj Gheyi i Luana Lucas de Sá Almeida. "Physiology of ‘Paluma’ guava under irrigation with saline water and nitrogen fertilization". Semina: Ciências Agrárias 38, nr 2 (2.05.2017): 623. http://dx.doi.org/10.5433/1679-0359.2017v38n2p623.
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The use of saline water in irrigation causes osmotic and toxic effects and nutritional imbalance in plants, leading to morphophysiological modifications in the leaves and compromising the production of photosynthetic pigments, which negatively reflects in the growth and development of the crops. Hence, this study aimed to evaluate the effect of irrigation water salinity on the content of photosynthetic pigments and leaf morphophysiology of guava seedlings cv. ‘Paluma’ under nitrogen (N) fertilization. A randomized block design was used, testing five levels of irrigation water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7, and 3.5 dS m-1) and four N doses (541.1, 773.0, 1,004.9, and 1,236.8 mg of N dm-3 of soil) in a 5 x 4 factorial scheme with three replicates and five plants per plot. The contents of photosynthetic pigments in the leaves of the guava seedlings cv. ‘Paluma’ were inhibited by the increase in irrigation water salinity at 190 days after emergence, and the salt stress was lessened with the N dose of 1,004.9 mg dm-3 up to an ECw level of 1.2 dS m-1. Leaf morphophysiology of guava seedlings was not compromised by irrigation water salinity up to 1.5 dS m-1, and the highest values were obtained in plants fertilized with 541.1 mg of N dm-3.
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Lu, Liping, i Xiyan Zhang. "Optimization of the low temperature combustion synthesis of Er3+ doped lead–natrium–yttrium–fluoride phosphor". Functional Materials Letters 07, nr 01 (luty 2014): 1450004. http://dx.doi.org/10.1142/s1793604714500040.
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The low-temperature combustion synthesis (LCS) method is the most popular method for the synthesis of ultrafine oxides and compound oxides. A kind of Er - Y - Pb - Na quaternary fluoride sensitive to 1.55 μm was synthesized by the LCS method and the synthesis conditions were optimized with orthogonal experiments. Intense upconversion emissions at 522 nm, 541.4 nm and 654.7 nm corresponding to the 2 H 11/2, 4 S 3/2 and 4 F 9/2 transitions to the 4 I 15/2 ground state were observed when excited by CW laser radiation at 1.55 μm. The effect of the carbamide amount on the phase formation and the luminescence intensity was analyzed. The product is of uniform particle size of ca. 40 nm, which is very outstanding for its reutilization in the infrared detection field.
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Fan, Xiao-Man, Jia-Ying Huang, Xiao-Min Ling, Wei Wei, Wen-Bin Su i Ye-Wang Zhang. "A Highly Active Chondroitin Sulfate Lyase ABC for Enzymatic Depolymerization of Chondroitin Sulfate". Polymers 14, nr 9 (27.04.2022): 1770. http://dx.doi.org/10.3390/polym14091770.
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Enzymatic preparation of low-molecular-weight chondroitin sulfate (LMWCS) has received increasing attention. In this work, a chondroitin sulfate lyase ABC (Chon-ABC) was successfully cloned, expressed, and characterized. The Km and Vmax of the Chon-ABC were 0.54 mM and 541.3 U mg−1, respectively. The maximal activity was assayed as 500.4 U mg−1 at 37 °C in pH 8.0 phosphate buffer saline. The half-lives of the Chon-ABC were 133 d and 127 min at 4 °C and 37 °C, respectively. Enzymatic preparation of LMWCS was performed at room temperature for 30 min. The changes between the substrate and product were analyzed with mass spectrometry (MS), high-performance liquid chromatography (HPLC), gel permeation chromatography (GPC), and nuclear magnetic resonance (NMR). Overall, the Chon-ABC from Bacteroides thetaiotaomicron is competitive in large-scale enzymatic preparation of LMWCS for its high activity, stability, and substrate specificity.
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Emmerling, Franziska, i Caroline Röhr. "Die neuen Oxoarsenate(III) AAsO2 (A = Na, K, Rb) und Cs3As5O9. Darstellung, Kristallstrukturen und Raman-Spektren / The New Oxoarsenates(III) AAsO2 (A = Na, K, Rb) and Cs3As5O9. Synthesis, Crystal Structures and Raman Spectra". Zeitschrift für Naturforschung B 58, nr 7 (1.07.2003): 620–26. http://dx.doi.org/10.1515/znb-2003-0704.
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The new alkaline metal arsenates(III) were synthesized at a temperature of 500 °C via reaction of stoichiometric mixtures of the elemental alkali metals A and As2O3. In the crystal structures of the four title compounds, which have been determined by single crystal x-ray diffraction, the As(III) atoms are in ψ-tetrahedral coordination by oxygen exclusively. In NaAsO2 (orthorhombic, space group Pbcm, a = 1429.6(9), b = 677.3(3), c = 509.1(2) pm, Z = 8) and the compounds AAsO2 (A = K/Rb, orthorhombic, space group Pbcm, a = 715.1(2)/729.7(5), b =748.0(1)/775.2(5), c = 539.20(17)/541.1(3) pm, Z = 4) the AsO3 ψ-tetrahedra are condensed to form zig-zag chains [AsOO2/2]−. In the Cs phase Cs3As5O9 with a lower alkaline metal content (trigonal, space group P31m, a = 845.5(3), c = 602.6(2) pm, Z = 1) the two crystallographically independent ψ-tetrahedra AsO3/2 and AsOO2/2 are connected in a 2:3 ratio to give polar sheets [As5O9]3−.
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Boalch, Gerald T. "MARY PARKE (1908–1989)". Phycologia 29, nr 4 (grudzień 1990): 541–42. http://dx.doi.org/10.2216/i0031-8884-29-4-541.1.
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Martinez, Maria, Monica Ausejo, J. Luis Miguel, M. Luisa Gonzalez, Gloria Balaguer, Pilar Catalan i Rafael Selgas. "Comparative Study between Intact PTH and Fragments of PTH in Patients on Hemodialysis and CAPD". Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis 11, nr 2 (kwiecień 1991): 137–40. http://dx.doi.org/10.1177/089686089101100207.
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Twenty-nine patients on hemodialysis (HO) and 29 patients on continuous ambulatory peritoneal dialysis (CAPO) were studied. Serum calcium and phosphorous levels were similar in the 2 groups. Serum parathyroid hormone (PTH) levels were determined by 4 different methods. Mid-molecule PTH levels were higher in HO (1099.5±876.8 pmol/L) than in CAPO patients (541.0±138.8 pmol/L), p<0.001, while intact PTH levels were similar. The ratio MM-PTHllntact PTH was higher in HO (55.2±29.0) than in CAPO patients (39.0±20.0), where p<0.01. In patients with similar C-PTH, those on CAPO had higher levels of intact PTH (46.0±27.0 pmollL) than those in HO (29.3±29.0 pmoIIL), p<0.01. The ratio C-PTHlintact PTH was higher in HO (104.9±39.6) than in CAPO patients (59.3±32.3), p<0.001. The Peritoneal Saturation Index (PSI) of MMPTH was 23.4±12%, and it showed a hyperbolic correlation in respect to MM-PTH serum levels. We concluded that CAPO can modify the plasma C-PTH and MM-PTH serum levels by peritoneallosses of these fragments.
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Zheng, Hao. "Analysis of Aroma Components of Enzymatic Hydrolysis Products of Oak Lignin from Different Producing Areas". International Journal of Natural Resources and Environmental Studies 2, nr 2 (25.04.2024): 12–23. http://dx.doi.org/10.62051/ijnres.v2n2.02.
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The morphology and structure of lignin in French oak, American oak and Chinese Mongolian oak were observed and compared by scanning electron microscopy (SEM). The results showed that the surface of lignin after enzymatic hydrolysis was more irregular and the contact area was obviously increased. GC-MS detected 3 kinds of lignin, 4 kinds of components and 30 kinds of volatile substances. The lignin content of French oak was the highest (8911.5 ± 512.2 μg/L, 29 kinds), followed by that of American oak (8071.7 ±541.9 μg/L, 26 kinds), and that of Mongolian oak was the least (7903.3 ± 492.5 μg/L, 26 kinds). The results of aroma characteristics analysis, principal component analysis and heat map analysis showed that the aroma components of the three kinds of oak lignin were significantly different. French oak lignin could provide more volatile phenols, with obvious smoky, woody and sweet flavor. Mongolian oak lignin carries more phenolic and ester compounds, providing a relatively soft floral, fruity flavor. American oak lignin has a relatively average aroma substance content, which can bring strong and complex complex aroma characteristics.
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Souza, Leandro de P., Reginaldo G. Nobre, Evandro M. da Silva, Geovani S. de Lima, Francisco W. A. Pinheiro i Luana L. de S. Almeida. "Formation of ‘Crioula’ guava rootstock under saline water irrigation and nitrogen doses". Revista Brasileira de Engenharia Agrícola e Ambiental 20, nr 8 (sierpień 2016): 739–45. http://dx.doi.org/10.1590/1807-1929/agriambi.v20n8p739-745.
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ABSTRACT The objective of this research was to evaluate the growth and formation of fresh and dry weight of ‘Crioula’ guava rootstock irrigated with waters of different saline levels and nitrogen (N) doses, in an experiment conducted in plastic tubes under greenhouse conditions. The experimental design was randomized blocks, in a 5 x 4 factorial scheme with four replicates, and the treatments consisted of five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the cultivation of guava seedlings, cv. ‘Paluma’). The dose referring to 100% corresponds to 773 mg of N dm-3. The highest growth of ‘Crioula’ guava rootstock was obtained with ECw of 0.3 dS m-1 and fertilization of 541.1 mg N dm-3 of soil; increasing N doses did not reduce the deleterious effect of the salt stress on the growth and phytomass formation of ‘Crioula’ guava rootstock; irrigation with water of up to 1.75 dS m-1, in the production of guava rootstocks, promotes acceptable reduction of 10% in growth and quality of the seedlings.
Rozprawy doktorskie na temat "541.2/4"
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Clarke, Philip. "A study of cryptate complexes and pendant arm ligand complexes /". Title page, contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phc5988.pdf.
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Padfield, J. "An experimental and theoretical study of the solvatochromism of 4-pyridiniophanolate dyes". Thesis, Swansea University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638391.
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The observed solvatochromism of the betaine 4-(2,4,6-triphenyl-1-pyridinio)phenolate has been assessed both experimentally and theoretically using semi-empirical molecular orbital methods over a larger range of solvent polarity than previously reported. Broad absorption bands are observed in the absorption spectra, suggesting that a number of conformers exist in solution. The large thermochromic shift of the dye in acetone and tetrahydrofuran on cooling from room temperature to ca. - 78°C has been studied, and attributed to a combination of an increase insolvent dielectric constant along with a change in conformer distribution. Calculations were performed at the AM1 and PM3 levels, with the COSMO routine used to model the effect of solvent, and assessed with respect to their ability to reproduce experimental data. The PM3/COSMO method was found to be most applicable to the system being studied, and further conformational studies were carried out. Many conformers very close in energy were found, supporting the idea that many conformers exist in solution. The calculated spectroscopic shifts using a multi-electron configuration interaction treatment show similar trends to those found experimentally in aprotic solvents. In protic solvents, the large negatively solvatochromic shift observed can be divided into two parts, a dielectric component and a hydrogen bonding component. Stable hydrogen bonded structures are predicted to be formed between water, methanol, chloroform and acetonitrile and the exocyclic oxygen of the dye. The overall shifts observed in these solvents show a good correlation with those calculated for the postulated solvates using a version of the CNDO/S method. In addition, the novel betaine 4-(2,4,6-trimethyl-pyridiniophenolate has been synthesised, and the observed solvatochromism has been assessed experimentally and theoretically using semi-empirical molecular orbital methods. The structure and solvatochromism of the betaines 4-(1-pyridinio)phenolate and 10H-pyrido[1,2-a]indolium-2-olate have also been investigated theoretically using semi-empirical molecular orbital methods.
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Ren, Jinlei. "Elaboration et caractérisation de monocristaux de borate pour la conversion de fréquence laser dans le domaine UV". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066060/document.
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Le fluoroborate de calcium Ca5(BO3)3F (CBF) et l'aluminoborate d'yttrium YAl3(BO3)4 (YAB) ont été étudiés pour respectivement la génération de 3ème et 4ème harmonique de laser proche infrarouge tel que YAG :Nd émettant à 1064 nm. Dans l'optique d'améliorer la qualité cristalline du CBF, nous avons étudié les paramètres de sa synthèse par réaction à l'état solide et ceux de sa cristallogénèse par la méthode Czochralski. Les acceptances thermiques pour la génération de 2nde harmonique à 1064 nm en type I et II ont également été déterminés. Et un cristal de CBF a permis de générer une énergie de 131,4 µJ à 355 nm par génération de 3ème harmonique, soit un rendement de conversion de 6,1%. Concernant le YAB, le flux à base de LaB3O6 a été étudié pour sa croissance cristalline par la méthode TSSG : des cristaux de tailles centimétriques sans fracture, ni inclusion ont été obtenus. Les défauts structuraux des cristaux (stries de croissance, macles etc.) ont été analysés. Par ailleurs, des investigations sur la réduction carbothermique ont été menées pour limiter la pollution en fer des cristaux. Une énergie laser de 163 µJ a été obtenue par doublage de fréquence de 532 nm à 266 nm, soit un rendement de conversion de 14,7%Calcium fluoroborate Ca5(BO3)3F (CBF) and yttrium aluminum borate YAl3(BO3)4 were studied respectively for 3rd and 4th harmonic generation of near infrared laser as Nd:YAG laser emitting at 1064 nm. In order to improve the crystalline quality of CBF, solid state reaction parameters and crystal growth conditions by using Czochralski furnace were investigated. Thermal acceptances for second harmonic generation at 1064 nm for type I and II were determined. 131,4 µJ energy at 355 nm was obtained by 3rd harmonic generation, corresponding to a conversion efficiency of 6,1%. When it came to YAB, LaB3O6 based flux was investigated for its crystal growth by TSSG method: centimeter size, inclusion and crack free crystals were obtained. Structural defects of crystals (striations, twins etc.) were analyzed. Furthermore, carbothermal reduction investigation was carried out to limit iron pollution in crystals. Eventually 163 µJ at 266 nm were obtained by frequency doubling from 532 nm to 266 nm, corresponding to a conversion efficiency of 14,7%
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Ren, Jinlei. "Elaboration et caractérisation de monocristaux de borate pour la conversion de fréquence laser dans le domaine UV". Electronic Thesis or Diss., Paris 6, 2017. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2017PA066060.pdf.
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Le fluoroborate de calcium Ca5(BO3)3F (CBF) et l'aluminoborate d'yttrium YAl3(BO3)4 (YAB) ont été étudiés pour respectivement la génération de 3ème et 4ème harmonique de laser proche infrarouge tel que YAG :Nd émettant à 1064 nm. Dans l'optique d'améliorer la qualité cristalline du CBF, nous avons étudié les paramètres de sa synthèse par réaction à l'état solide et ceux de sa cristallogénèse par la méthode Czochralski. Les acceptances thermiques pour la génération de 2nde harmonique à 1064 nm en type I et II ont également été déterminés. Et un cristal de CBF a permis de générer une énergie de 131,4 µJ à 355 nm par génération de 3ème harmonique, soit un rendement de conversion de 6,1%. Concernant le YAB, le flux à base de LaB3O6 a été étudié pour sa croissance cristalline par la méthode TSSG : des cristaux de tailles centimétriques sans fracture, ni inclusion ont été obtenus. Les défauts structuraux des cristaux (stries de croissance, macles etc.) ont été analysés. Par ailleurs, des investigations sur la réduction carbothermique ont été menées pour limiter la pollution en fer des cristaux. Une énergie laser de 163 µJ a été obtenue par doublage de fréquence de 532 nm à 266 nm, soit un rendement de conversion de 14,7%Calcium fluoroborate Ca5(BO3)3F (CBF) and yttrium aluminum borate YAl3(BO3)4 were studied respectively for 3rd and 4th harmonic generation of near infrared laser as Nd:YAG laser emitting at 1064 nm. In order to improve the crystalline quality of CBF, solid state reaction parameters and crystal growth conditions by using Czochralski furnace were investigated. Thermal acceptances for second harmonic generation at 1064 nm for type I and II were determined. 131,4 µJ energy at 355 nm was obtained by 3rd harmonic generation, corresponding to a conversion efficiency of 6,1%. When it came to YAB, LaB3O6 based flux was investigated for its crystal growth by TSSG method: centimeter size, inclusion and crack free crystals were obtained. Structural defects of crystals (striations, twins etc.) were analyzed. Furthermore, carbothermal reduction investigation was carried out to limit iron pollution in crystals. Eventually 163 µJ at 266 nm were obtained by frequency doubling from 532 nm to 266 nm, corresponding to a conversion efficiency of 14,7%
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Jewula, Pawel. "Synthèse et étude de ligands hydroxamates cycliques dérivés des sidérophores naturels pour la complexation sélective des actinides". Thesis, Dijon, 2013. http://www.theses.fr/2013DIJOS038.
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Pas de résumé en françaisThe goal of this research was the synthesis and spectroscopic, structural andphysical-chemical characterization of cyclic 6- and 7-membered hydroxamicacids, a tetrahydroxamic calix[4]arene-based tetrapodal receptor, and their metalcomplexes with trivalent and tetravalent metal cations. They were characterizedby several techniques such as 1H and 13C NMR, IR, and mass spectroscopies,single crystal X-ray analysis, and potentiometry. Cyclic hydroxamic acids arefound in a few mix siderophores but their coordination properties were stillunknown. The structural features of metal complexes formed with Fe(III),Ga(III), Ce(IV), Zr(IV), Hf(IV), U(IV) and U(VI) have been investigated both inthe solid state and in solution. The synthesis and complexation studies of anoriginal calix[4]arene-based tetrapodal receptor is described. Reactionparameters for all key steps in the synthetic route have been optimized. Thesingle X-ray crystal analysis of benzyl-protected receptor was obtained.Complexation studies with zirconium(IV) and hafnium(IV) evidenced theformation of two metal two ligand complexes rather than 1:1 species, whichwere shown to interact in solution with a third alkali cation
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Ternova, Dariia. "Malonamide, phosphine oxide and calix[4]arene functionalized ionic liquids : synthesis and extraction of actinides and lanthanides". Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAE041/document.
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Le retraitement des déchets radioactifs est un problème crucial de nos jours. Ce travail est dédié au développement de nouveaux systèmes d'extraction des radionucléides sur la base de solvants "verts", les liquides ioniques (LI). Dans ce but, des LI ont été fonctionnalisés avec des motifs variés : oxyde de phosphine, carbamoyl oxyde de phosphine et fragments malonamides. De même, les plateformes calix[4]arènes ont été utilisées pour la synthèse de LI fonctionnalisés (LIF) et de leurs précurseurs. Des LIF de deux types (cationiques et anioniques) ont été obtenus.Les LIF synthétisés ont été testés pour l'extraction liquide/liquide de radionucléides. Il a été montré que l'extraction est bien due aux motifs extractants. Toutefois, la charge de l'ion modifié influence l'extraction.Différentes expériences d'extraction et une modélisation mathématique ont été effectuées pour déterminer les mécanismes d'extraction. Ces études ont montré que chacun des systèmes d'extraction est caractérisé par un ensemble d'équilibres d'extraction différent, basés essentiellement sur l'échange cationiqueRadioactive waste treatment is a crucial problem nowedays. This work was dedicated to the development of the new extracting systems for radionuclides on the basis of "green" solvents Ionic Liquids {Ils). For this purpose Ils were functionalized with various extracting patterns: phosphine oxide, carbamoyl phosphine oxide groups and malonamide fragment. Also the calix[4]arene platforms were used for the synthesis of functionalized ionic liquids (Fils) and their precursors. The Fils of both types cationic and anionic have been obtained. The synthesized Fils were tested for the liquid-liquid extraction of radionuclides. lt was found that extraction well occurs due to the extracting patterns, however a charge of a modified ion influences extraction.The various extracting experiments and mathematical modelling have been performed to determine the mechanisms of extraction. These studies showed that each extracting system is characterized by a different set of extracting equilibria, based mostly on cationic exchange
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Clarke, Philip. "A study of cryptate complexes and pendant arm ligand complexes / by Philip Clarke". Thesis, 1992. http://hdl.handle.net/2440/19813.
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Typescript (Photocopy)Includes bibliographies
x, 157, A.xxxi : ill ; 30 cm.
Summary: Studies the complexation of various monovalent metal ions by the diaza-crown ether C21 and the cryptands, C211 and C22C5 to form cryptates in various solvents, and investigates the kinetics for the interaction of the pendant arm ligand 1,4,8,11-tetrakis (2-hydroxyethyl)-1,4,8,11-tetraazacyclotetradecane (THEC) with the divalent metal ions Cd2+, Hg2+ and Pb2
Thesis (Ph.D.)--University of Adelaide, Dept. of Physical and Inorganic Chemistry, 1993
Książki na temat "541.2/4"
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Atomic Structure and Periodicity. Royal Society of Chemistry, The, 2013.
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