Relevant bibliographies by topics / K-Ca

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'K-Ca'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "K-Ca"

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Novaković, Aleksandra, Simone C. van Lith, Flemming J. Frandsen, Peter A. Jensen, and Lilian B. Holgersen. "Release of Potassium from the Systems K−Ca−Si and K−Ca−P†." Energy & Fuels 23, no. 7 (July 16, 2009): 3423–28. http://dx.doi.org/10.1021/ef8010417.

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Cherniak, D. J., and E. B. Watson. "Ca diffusion in K-Feldspar." Lithos 348-349 (December 2019): 105200. http://dx.doi.org/10.1016/j.lithos.2019.105200.

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Schnetkamp, Paul P. M. "NaCa or NaCaK exchange in rod photoreceptors." Progress in Biophysics and Molecular Biology 54, no. 1 (January 1989): 1–29. http://dx.doi.org/10.1016/0079-6107(89)90007-2.

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Shih, C. Y., L. E. Nyquist, and H. Wiesmann. "KCa chronology of lunar granites." Geochimica et Cosmochimica Acta 57, no. 19 (October 1993): 4827–41. http://dx.doi.org/10.1016/0016-7037(93)90202-8.

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Pietarila, A., J. Hirzberger, V. Zakharov, and S. K. Solanki. "Bright fibrils in Ca II K." Astronomy & Astrophysics 502, no. 2 (April 8, 2009): 647–60. http://dx.doi.org/10.1051/0004-6361/200811155.

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Pelton, A. D. "The Ca−K (Calcium-Potassium) system." Bulletin of Alloy Phase Diagrams 6, no. 1 (February 1985): 34. http://dx.doi.org/10.1007/bf02871178.

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Zimmermann, Rolf, Erich Knop, Wilhelm Heinricrf, Inge Pehlke, and Gerhard Franz. "Disequilibrium in cation exchange experiments between Na-K-Ca amphiboles and aqueous Na-K-Ca chloride solutions: effects of fractional crystallization." European Journal of Mineralogy 9, no. 1 (December 30, 1996): 97–114. http://dx.doi.org/10.1127/ejm/9/1/0097.

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Abe, Hitoshi, Yasuhiro Niwa, Masaaki Kitano, Yasunori Inoue, Toshiharu Yokoyama, Michikazu Hara, and Hideo Hosono. "Oxidation Number Estimation of Ca in Ca-N Compounds from Ca K-edge XANES Spectra." Bulletin of the Chemical Society of Japan 90, no. 8 (August 15, 2017): 963–65. http://dx.doi.org/10.1246/bcsj.20170143.

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Kaji, D. M. "Nifedipine inhibits calcium-activated K transport in human erythrocytes." American Journal of Physiology-Cell Physiology 259, no. 2 (August 1, 1990): C332—C339. http://dx.doi.org/10.1152/ajpcell.1990.259.2.c332.

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The effect of nifedipine on K transport across human erythrocytes was investigated. Nifedipine had no effect on K influx mediated by the Na-K pump, Na-K-2Cl cotransport, or the passive residual K flux. However, it inhibited the K and water loss from ATP-depleted cells in the presence of external Ca (Cao). Similar inhibition of Ca-activated K [K(Ca)] efflux was observed in fresh cells exposed to Cao and A23187 or ionomycin. The inhibition was observed even when nifedipine was added after initiation of the K(Ca) efflux and was not readily reversed by washing cells with drug-free media. When K(Ca) efflux was plotted as a function of external free Ca, nifedipine reduced the maximum K(Ca) efflux but had no effect on the Ca concentration required for half-maximum K(Ca) efflux. The inhibition of K(Ca) efflux by nifedipine was not consequent to its effect on conductive Cl permeability, because valinomycin-induced K efflux in Cl media was enhanced rather than reduced by nifedipine and because the inhibition was also seen with SCN, a nonlimiting anion. Nifedipine inhibited the K(Ca) efflux with a dissociation constant (Kd) of 4 microM. The inhibitory capacity of nifedipine was reduced by increasing external K. Nifedipine reduced not only the basic conductance but also the zero-current K conductance with a Kd of 23 microM. Other Ca-channel blockers, such as verapamil and diltiazem, did not inhibit K(Ca) efflux, but other dihydropyridines, including BAY K 8644, a Ca-channel agonist, were effective in inhibiting K(Ca) efflux.(ABSTRACT TRUNCATED AT 250 WORDS)
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FREDEEN, A. H. "EFFECTS OF CALCIUM LOSS AND HIGH DIETARY CALCIUM AND POTASSIUM ON CALCIUM KINETICS AND MAGNESIUM BALANCE IN SHEEP FED LOW MAGNESIUM DIETS." Canadian Journal of Animal Science 70, no. 4 (December 1, 1990): 1109–17. http://dx.doi.org/10.4141/cjas90-134.

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Effects of low dietary Mg with low or high Ca and K and sudden Ca loss, on Ca kinetics and Mg balance in sheep were studied. Six sheep were randomly assigned to one of two dietary treatments to provide (g d−1) either low levels of Ca (3.9), K (8.4) and Mg (2.3) or high levels of Ca (6.4) and K (30.6), and low levels of Mg (2.1). Lactational Ca loss was simulated via continuous iv infusion of ethylene glycol-bis (β-amino ethyl ether) N, N, N1, N1-tetraacetic acid (EGTA). In a control period sheep were not infused. Kinetics of Ca absorption and metabolism were determined using a radio-dilution technique and the Simulation, Analysis and Modeling program. Diets containing high Ca and K and low Mg reduced apparent Mg absorption and Mg balance compared to diets containing low Ca, K, and Mg. Confronted with a simulated lactational Ca loss, bone Ca resorption failed to increase when diets contained high Ca and K levels, whereas Ca absorption failed to increase when diets contained low Ca and K levels. Calcium balance was negative, and size of the exchangeable Ca pool was smaller in EGTA-infused sheep fed a low Ca, K, and Mg diet compared to a high Ca, K and low Mg diet. Key words: Calcium, magnesium, potassium, metabolism, kinetics, sheep, SAAM
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Dissertations / Theses on the topic "K-Ca"

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Tharp, Darla L. "Role of the intermediate-conductance Ca²⁺-activated K⁺ channel (K[ca]3.1) in coronary smooth muscle cell phenotypic modulation." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5936.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2007.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. "December 2007" Includes bibliographical references.
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Tucker, Joseph Edward Lovell. "Molecular studies on the retinal rod Na/Ca§+K exchanger." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0025/NQ49544.pdf.

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Seagar, Michael. "Etude d'un canal K/Ca activité à l'aide d'une neurotoxine : l'apamine." Aix-Marseille 2, 1986. http://www.theses.fr/1986AIX22014.

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Utilisation des derives de l'apamine comme marqueurs biochimiques pour caracteriser cet ionophore membranaire des cellules nerveuses. L'apamine radioiodee se fixe sur un recepteur a haute affinite present dans les neurones, les cellules gliales et les preparations de membranes synaptiques
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Rajabipour, Ali. "Effects of Ca, K and water table depth on tomato mechanical properties." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39984.

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Two series of tests were performed in summer 1993 and repeated in summer 1994 to investigate effects of potassium, calcium and water table depth on mechanical properties of tomato fruit. In the first group of tests five mechanical properties stress, strain, ER (ratio of stress to strain at break), energy and toughness were calculated from the force-deformation curve obtained by compression of pericarp disks taken from tomato fruits (cv New Yorker) at the breaker stage. In the second group of tests force, deformation and energy were obtained from puncture tests on whole tomato fruit. The textural parameters were used to compare the effects of the potassium, calcium and water level depths on the mechanical properties of tomatoes. Results showed the effects of calcium and water table depths on the mechanical properties were significant. Tomato fruits exposed to increasing moisture stress levels by increasing water table depth exhibited increased firmness. Increased application of calcium also resulted in increased firmness. Application of different potassium levels had in general no significant effect on breaking stress, strain, ER, energy and toughness of tomato fruit pericarp.
A new method of measuring skin strength of tomatoes is described. The method, refered to as loop method, overcame the problems with the existing method using mechanical grips. Further, the loop method was applied to measure the effect of potassium and calcium on skin strength of tomato. Using the loop method, data were collected on relaxation of tomato skin (epidermis). A computer program was written to model th tensile stress relaxation behaviour of tomato skin. The program was employed to calculate linear and non-linear coefficients of a relaxation model. The fitted values were in a very good agreement with experimental data (R$ sp2>$0.99).
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Moncrieff, Kathleen Elizabeth. "Development of a New Ca II H and K Spectrophotometric Temperature Index." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1486.

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We are developing a new spectrophotometric temperature index based on the Ca II H and K lines. Because these lines are present even in very cool stars and because the Ca II H line is blended with the H-epsilon line in hot stars, this index should cover a very broad range of spectral types. Our data set consisted of 95 stars with spectral types ranging from O9 to M1. We examined five different indices based on the Ca II H + H-epsilon and K lines, as well as single-wavelength indices centered on each of the H-delta and H-gamma lines, which are in the same region of the spectrum. We compared our new index value with the H-beta index values for the stars in our data set that had published H-beta values. We found that the Ca II K-H index was the best temperature indicator with the widest range in magnitude of the indices we examined.
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Cecil, Mary Robinson. "Development and Application of Geochronometric Techniques to the Study of Sierra Nevada Uplift and the Dating of Authigenic Sediments." Diss., The University of Arizona, 2009. http://hdl.handle.net/10150/195423.

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This dissertation contains studies that use various geochronometric and thermochronometric techniques to better understand the post-magmatic evolution of Sierra Nevada, California. (U-Th)/He ages in apatite and zircon from Sierran batholithic rocks are used to constrain the Cenozoic exhumation of the northern part of the range. Zircon and apatite ages determined from the same samples revealed relatively rapid cooling and exhumation rates (0.2 - 0.8 km/My) from ~ 90 to 60 Ma, followed by tectonic quiescence and slow exhumation (0.02 - 0.04 km/My) from the late Paleocene to present. In addition to the thermochronology of basement lithologies, the detrital zircon geochronology of grains from preserved Eocene fluvial sediments in the central and northern Sierra Nevada was performed. U-Pb ages of detrital zircons from the deposits were found to have distributions closely matching age-area estimates of Mesozoic plutons in the Sierra Nevada, suggesting that Eocene river systems were draining local Sierran catchments and likely had steeper axial gradients than has been proposed. Provenance analysis of the Eocene sediments is used to provide constraints on the paleotopography of the Sierra Nevada and inferred range-wide Cenozoic uplift.In addition to the Sierra Nevada work, this dissertation also contains studies that focus on the development of the K-Ca system as a geochronometric technique suitable for dating the deposition of sedimentary sequences. We present a new method for measuring Ca isotopic ratios using a multi-collector ICP-MS equipped with a hexapole collision cell. Isobaric argon interferences are minimized via gas phase reactions in the collision cell. The reproducibility of Ca ratio measurements is found to be ~ 0.02 % (RSD), which is comparable to high precision TIMS techniques and an order of magnitude improvement over single collector ICP-MS techniques using a similar reaction cell method. K-Ca ages of glauconite and K-rich evaporites are determined in order to evaluate the usefulness of the K-Ca system as a sedimentary geochronometer. K-Ca ages in both glauconite and K-salts are found to be variable and significantly younger than documented depositional ages. Reported ages, however, are thought to be recording important basinal thermal histories and recrystallization events.
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Sousa, Renan Lima de [UNESP]. "Doses de Ca e K na produção de pimentão fertirrigado em ambiente protegido." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151566.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Com o objetivo de avaliar o desenvolvimento e produção do cultivar ‘Gaston’ submetido a doses de cálcio e potássio, utilizando extratores de solução do solo, instalou-se a presente pesquisa em vasos na estufa agrícola do Departamento de Solos e Recursos Ambientais da Universidade Estadual Paulista “Júlio de Mesquita Filho” - Campus de Botucatu. Com delineamento em blocos casualizados e quatro repetições, foi conduzido um experimento testando quatro doses de Ca (98 kg.ha-1, 196 kg ha-1, 294 kg ha-1 e 392,0 kg ha-1) e outro experimento com 4 doses de K2O (363 kg ha-1, 726 kg ha-1, 1088 kg ha-1 e 1451 kg ha-1) aplicados via fertirrigação por gotejamento. Foram avaliados: a extração semanal da solução do solo, altura da planta, concentração de nutrientes (folha, fruto e solo) e produção. Os extratores permitiram monitoramento eficiente e houve diferença significativa entre os tratamentos. O aumento da concentração de sais na solução do solo reduziu a altura das plantas, número de frutos e a produção. As doses, além da calagem, que proporcionaram maior produção de frutos foram: 98 kg ha-1 de Ca com 46,5 t ha-1 e 363 kg ha-1 de K2O com 39,2 t ha-1.
With the objective of evaluating the development and production of 'Gaston' cultivar submitted to calcium and potassium doses, use soil solution extractors, the present research in pots in the greenhouse of the Department of Soils and Environmental Resources of the State University Paulista "Júlio de Mesquita Filho" - Campus of Botucatu. A randomized complete block design with four replications was carried out by testing four Ca doses (98 kg ha-1 , 196 kg ha-1 , 294 kg ha-1 and 392.0 kg ha-1 ) and another experiment with 4 doses of K2O (363 kg ha-1 , 726 kg ha-1 , 1088 kg ha-1 and 1451 kg ha-1 ) applied via drip fertigation. Was evaluated: a weekly extraction of soil solution, plant height, nutrient concentration (leaf, fruit and soil) and production. The extractors allowed efficient monitoring and great difference between the treatments. Increasing the concentration of salts in the soil solution reduced plant height, number of fruits and yield. The doses, besides liming, that provide higher fruit yield: 98 kg ha- 1 of Ca with 46.5 t ha-1 and 363 kg ha-1 of K2O with 39.2 t ha-1 .
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Sousa, Renan Lima de 1991. "Doses de Ca e K na produção de pimentão fertirrigado em ambiente protegido /." Botucatu, 2017. http://hdl.handle.net/11449/151566.

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Orientador: Roberto Lyra Villas Bôas
Banca: Poliana Rocha D' Almeida Mota Suares
Banca: Caroline de Moura D Andréa Mateus
Resumo: Com o objetivo de avaliar o desenvolvimento e produção do cultivar 'Gaston' submetido a doses de cálcio e potássio, utilizando extratores de solução do solo, instalou-se a presente pesquisa em vasos na estufa agrícola do Departamento de Solos e Recursos Ambientais da Universidade Estadual Paulista "Júlio de Mesquita Filho" - Campus de Botucatu. Com delineamento em blocos casualizados e quatro repetições, foi conduzido um experimento testando quatro doses de Ca (98 kg.ha-1, 196 kg ha-1, 294 kg ha-1 e 392,0 kg ha-1) e outro experimento com 4 doses de K2O (363 kg ha-1, 726 kg ha-1, 1088 kg ha-1 e 1451 kg ha-1) aplicados via fertirrigação por gotejamento. Foram avaliados: a extração semanal da solução do solo, altura da planta, concentração de nutrientes (folha, fruto e solo) e produção. Os extratores permitiram monitoramento eficiente e houve diferença significativa entre os tratamentos. O aumento da concentração de sais na solução do solo reduziu a altura das plantas, número de frutos e a produção. As doses, além da calagem, que proporcionaram maior produção de frutos foram: 98 kg ha-1 de Ca com 46,5 t ha-1 e 363 kg ha-1 de K2O com 39,2 t ha-1.
Abstract: With the objective of evaluating the development and production of 'Gaston' cultivar submitted to calcium and potassium doses, use soil solution extractors, the present research in pots in the greenhouse of the Department of Soils and Environmental Resources of the State University Paulista "Júlio de Mesquita Filho" - Campus of Botucatu. A randomized complete block design with four replications was carried out by testing four Ca doses (98 kg ha-1, 196 kg ha-1, 294 kg ha-1 and 392.0 kg ha-1 ) and another experiment with 4 doses of K2O (363 kg ha-1, 726 kg ha-1, 1088 kg ha-1 and 1451 kg ha-1 ) applied via drip fertigation. Was evaluated: a weekly extraction of soil solution, plant height, nutrient concentration (leaf, fruit and soil) and production. The extractors allowed efficient monitoring and great difference between the treatments. Increasing the concentration of salts in the soil solution reduced plant height, number of fruits and yield. The doses, besides liming, that provide higher fruit yield: 98 kg ha- 1 of Ca with 46.5 t ha-1 and 363 kg ha-1 of K2O with 39.2 t ha-1 ...
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Nzanza, Bombiti. "Yield and quality of tomato as influenced by differential Ca, Mg and K nutrition." Diss., Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-05152008-144742.

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Yamada, Shinichiro. "Small conductance Ca[2+]-dependent K[+] channels are the target of spike-induced Ca[2+] release in a feedback regulation of pyramidal cell excitability." Kyoto University, 2004. http://hdl.handle.net/2433/147511.

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Books on the topic "K-Ca"

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Desborough, George A. Cu, Zn, and Pb exchange capacities of clinoptilolite-rich rocks in low Ca and low K acidic water. [Reston, Va.?]: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

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Kotowska, Janina. Wpływ wapnowania i nawożenia mineralnego na plon oraz zawartość Cu, Zn, Fe, Ca, K, N, P w roślinach uprawianych w zmianowaniu. Szczecin: Wydawn. Akademii Rolniczej w Szczecinie, 1992.

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John, Mark George St. Occurrence of Ca, Fe, K, Mg, N, Na, S, and P within rose-stem galls and ungalled wild roses: Implications for the nutrition hypothesis of gall evolution. Sudbury, Ont: Laurentian University, Department of Biology, 1998.

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Taylor, Ronald M. Comparative baseline concentration of Ca, Mg, Na, K, Cu, Zn, Fe, Mn, Ni and Cr in the freshwater crayfish, Cambarus robustus (Cambaridae, Decapoda, Crustacea) from an acidic metal contaminated lake and circumneutral uncontaminated stream. Sudbury, Ont: Laurentian University, 1994.

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California. Legislature. Assembly. Select Committee on School Safety. Proceedings of the Assembly Select Committee on School Safety: Topic, overview of community response to emergency preparedness and response in K-12 schools : Friday, December 11, 2001, 10:00 A.M. - 12:00 Noon, East Whittier School District, Whittier, CA. Sacramento, Calif.]: The Committee, 2001.

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Safety, California Legislature Assembly Select Committee on School. Proceedings of the Assembly Select Committee on School Safety: Topic, overview of community response to emergency preparedness and response in K-12 schools : Friday, January 25, 2002, 10:00 A.M.- 12:00 noon, Norwalk - La Miranda School District board room, Norwalk, CA. Sacramento, Calif.]: The Committee, 2002.

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California. Legislature. Assembly. Select Committee on School Safety. Proceedings of the Assembly Select Committee on School Safety: Topic, overview of community response to emergency preparedness and response in K-12 schools : Friday, January 11, 2001 [i.e. 2002], 10:00 A.M. - 12:00 P.M., South Whittier Community Resource Center, South Whittier, CA. Sacramento, Calif.]: The Committee, 2002.

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Stanford Symposium on Algebraic Topology: Applications and New Directions (2012 : Stanford, Calif.), ed. Algebraic topology: Applications and new directions : Stanford Symposium on Algebraic Topology: Applications and New Directions, July 23--27, 2012, Stanford University, Stanford, CA. Providence, Rhode Island: American Mathematical Society, 2014.

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Azar, Alborz. Rxb ca keid xar? k?h??n. Writer's Publishing House, 2020.

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Azar, Alborz. Rxb ca keid xar? k?h??n. Writer's Publishing House, 2020.

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Book chapters on the topic "K-Ca"

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Wendt, I. "Die K/Ar-Methode und K/Ca-Methode." In Radiometrische Methoden in der Geochronologie, 41–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-47637-2_5.

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Cioni, Roberto, and Luigi Marini. "The Activity-Based Theoretical K–Ca and Na–Ca Geoindicators." In Springer Geochemistry, 365–407. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54318-1_8.

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Beilby, Mary Jane. "The Role of Ca++ in Chara K+ State." In Molecular and Cellular Aspects of Calcium in Plant Development, 411–12. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-2177-4_84.

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Hermann, A., C. Erxleben, and D. Armstrong. "Small Conductance Ca Activated K Channels in Mollusks." In Calcium and Ion Channel Modulation, 119–31. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0975-8_10.

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Tatsuki, Tadashi, Seiji Adachi, Makoto Itoh, Toshiyuki Tamura, Xiao-Jing Wu, Chang-Qing Jin, Naoki Koshizuka, and Keiichi Tanabe. "High Pressure Synthesis of (Ca,K)2CuO2Cl2 Superconductor." In Advances in Superconductivity VIII, 355–58. Tokyo: Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-66871-8_77.

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Villars, P., K. Cenzual, J. Daams, R. Gladyshevskii, O. Shcherban, V. Dubenskyy, V. Kuprysyuk, and I. Savysyuk. "(Mg2.1Al0.6)(Fe,Ca,K)0.1Al0.6Si1.4O4.6(OH)4.4 9T." In Structure Types. Part 9: Space Groups (148) R-3 - (141) I41/amd, 499–500. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02702-4_348.

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Fernández-Figueroa, M. J., J. E. Armentia, E. de Castro, M. Cornide, and V. Reglero. "Ca II H and K spectroscopy of ER Vul." In The Sun and Cool Stars: activity, magnetism, dynamos, 483–85. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/3-540-53955-7_185.

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Hermann, A., and K. Hartung. "Pharmacological Aspects of Ca-Activated K Conductance in Molluscan Neurons." In Calcium Electrogenesis and Neuronal Functioning, 124–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-70744-5_12.

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Johannesson, Anders, William H. Marquette, and Harold Zirin. "A 10-Year Set of Ca II K-Line Filtergrams." In Solar Electromagnetic Radiation Study for Solar Cycle 22, 265–78. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5000-2_22.

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Lazo, Pranvera, Flora Qarri, Shaniko Allajbeu, Sonila Kane, Lirim Bekteshi, Marina Frontasyeva, and Trajce Stafilov. "Sea Spray Elements (Na, Cl, Mg, Ca, K, Br, I)." In SpringerBriefs in Environmental Science, 77–84. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62355-5_6.

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Conference papers on the topic "K-Ca"

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Bahadırlar, Yıldırım, and Mehmet Sezgin. "CA-CFAR detection against K-distributed clutter in GPR." In Defense and Security Symposium, edited by Russell S. Harmon, J. Thomas Broach, and John H. Holloway, Jr. SPIE, 2007. http://dx.doi.org/10.1117/12.719362.

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Poort, S. R., C. Krommenhoek-van Es, I. K. van der Linden, N. H. van Tilburg, and R. M. Bertina. "DEFECTS OF VITAMIN K-DEPENDENT FACTORS IN CA(11)-STABILI ZED STRUCTURE." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644320.

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Vitamin K-dependent (anti)coagulation factors (factor II, VII, IX, X protein C and S) undergo a conformational transition upon binding of Ca(II), which is a prerequisite for their normal function. Abnormalities in these properties occur during vitamin K deficiency or treatment with anti vitamin K drugs and in some genetic variants of coagulation factors. Immunological assays utilizing antibodies against the Ca(II)-stabilized structure are useful to detect such abnormalities.Starting from specific rabbit antisera antibody populations specific for the Ca(II)-dependent conformation of factor II, VII, IX, X and protein C and S were isolated using immuno-affinity procedures. Subsequently immunoradiometric assays specific for the Ca(II)-dependent (Ca(II)Ag) and Ca(II)-independent (NonCa(II)Ag) conformations of the different proteins were developed. These assays were used for the analysis of plasmas of patients stably treated with oral anticoagulants; Ca(II)Ag, NonCa(II)Ag and their ratio were measured as function of the intensity of the treatment (INR 2.4 to 4.8). The same parameters were measured in plasmas of patients with hereditary coagulation disorders. After treatment with oral anticoagulation with an antivitamin K drug reduced ratios of Ca(II)Ag/-NonCa(II)Ag were observed for factor II, VII, IX, protein C and protein S. However, the actual degree of reduction and its dependence on the intensity of treatment varied for the different vitamin K-dependent proteins. In general Ca(II)Ag levels correspond nicely with the procoagulant activity of the concerning proteins. These data provide indirect evidence for the existence of abnormal (non and/or subcarboxylated) forms of the vitamin K-dependent proteins during oral anticoagulant treatment.Genetic variants with a mutation in one of the sites involved in the formation of the Ca(II)-s tab i1ized structure could be detected for factor IX, factor VII and factor II. However, the extent of reduction of the ratio Ca(II)Ag/-NonCa(II)Ag differed considerably in those variants.
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Hamurcu, Aysin Cetin, and Altunkan Hizal. "CA-CFAR detection in spatially correlated K-distributed sea clutter." In 2009 IEEE 17th Signal Processing and Communications Applications Conference (SIU). IEEE, 2009. http://dx.doi.org/10.1109/siu.2009.5136527.

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Werner, Rolf. "Determination of the CA-K index by video-spectrometric measurements." In 10th International School on Quantum Electronics: Lasers--Physics and Applications, edited by Peter A. Atanasov and Dimitar V. Stoyanov. SPIE, 1999. http://dx.doi.org/10.1117/12.347643.

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Salem, A., G. A. Gamal, G. Jakob, and H. Adrian. "130-K Superconductivity in the Hg-Ba-Ca-Cu-O System." In LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP, 2006. http://dx.doi.org/10.1063/1.2354754.

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Sheng, Z. Z., Y. Xin, and J. M. Meason. "New T1-based superconductor T1PbSrRCuO without Ca with Tc above 100 K." In Superconductivity and its applications. AIP, 1991. http://dx.doi.org/10.1063/1.40248.

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Feng Gao, Xiang Gao, Yincheng Fu, Yongxin Zhang, Zhongyang Luo, Mingjiang Ni, and Kefa Cen. "Experimental study on combined deactivating effect of K and Ca on SCR catalysts." In 2011 International Conference on Electric Information and Control Engineering (ICEICE). IEEE, 2011. http://dx.doi.org/10.1109/iceice.2011.5777326.

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Costa, L. P., J. M. A. P. Santos, F. A. Oliveira, J. F. Medeiros, C. A. Paiva, and E. M. M. Aroucha. "QUALIDADE PÓS-COLHEITA DE FRUTOS DE BERINJELA FERTIRRIGADA COM DIFERENTES RELAÇÕES K/Ca." In IV Inovagri International Meeting. Fortaleza, Ceará, Brasil: INOVAGRI/ESALQ-USP/ABID/UFRB/INCT-EI/INCTSal/INSTITUTO FUTURE, 2017. http://dx.doi.org/10.7127/iv-inovagri-meeting-2017-res1520303.

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SANTOS, J. M. A. P., F. A. OLIVEIRA, J. F. MEDEIROS, A. J. O. TARGINO, L. R. S. RÉGIS, and D. D. A. SILVA. "ÁREA FOLIAR DA BERINJELA FERTIGADA SOB ESTRESSE SALINO E DIFERENTES RELAÇÕES K/Ca." In IV Inovagri International Meeting. Fortaleza, Ceará, Brasil: INOVAGRI/ESALQ-USP/ABID/UFRB/INCT-EI/INCTSal/INSTITUTO FUTURE, 2017. http://dx.doi.org/10.7127/iv-inovagri-meeting-2017-res0320292.

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Küçükönder, Adnan, and Medine Ergüven. "Determination of ratios of Auger electrons emission probabilities and K–L shell vacancy transfer probability for K and Ca compounds." In SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems. Author(s), 2018. http://dx.doi.org/10.1063/1.5078893.

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Reports on the topic "K-Ca"

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Janecky, D. R., R. W. Charles, G. K. Bayhurst, and T. M. Benjamin. Physicochemical basis of the Na-K-Ca geothermometer. Office of Scientific and Technical Information (OSTI), August 1986. http://dx.doi.org/10.2172/5188355.

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Myneni, S. C. B., and R. C. C. Perera. Ca and S K-edge XANES studies of calcite-acid mine water interactions. Office of Scientific and Technical Information (OSTI), April 1997. http://dx.doi.org/10.2172/603631.

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Ivanova, Miroslava, Lilko Dospatliev, and Penko Papazov. Application of ICP-OES Method of Determination of K, P, Mg, Na and Ca in Nine Wild Edible Mushrooms with a Chemometric Approach. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, February 2019. http://dx.doi.org/10.7546/crabs.2019.02.06.

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Schutt, Timothy, and Manoj Shukla. Predicting the impact of aqueous ions on fate and transport of munition compounds. Engineer Research and Development Center (U.S.), August 2021. http://dx.doi.org/10.21079/11681/41481.

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A model framework for natural water has been developed using computational chemistry techniques to elucidate the interactions between solvated munition compounds and eight common ions in naturally occurring water sources. The interaction energies, residence times, coordination statistics, and surface preferences of nine munition related compounds with each ion were evaluated. The propensity of these interactions to increase degradation of the munition compound was predicted using accelerated replica QM/MM simulations. The degradation prediction data qualitatively align with previous quantum mechanical studies. The results suggest that primary ions of interest for fate and transport modeling of munition compounds in natural waters may follow the relative importance of SO₄²⁻, Cl⁻ ≫ HCO₃⁻, Na⁺, Mg²⁺ > Ca²⁺, K⁺, and NH₄⁺.
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Anderson, Andrew, and Mark Yacucci. Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois: Appendices. Illinois Center for Transportation, June 2021. http://dx.doi.org/10.36501/0197-9191/21-007.

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This report presents detailed histograms of data from the Regulated Substances Library (RSL) developed by the Illinois Department of Transportation (IDOT). RSL data are provided for state and IDOT region, IDOT district, and county spatial subsets to examine the spatial variability and its relationship to thresholds defining natural background concentrations. The RSL is comprised of surficial soil chemistry data obtained from rights-of-way (ROW) subsurface soil sampling conducted for routine preliminary site investigations. A selection of 22 inorganic soil analytes are examined in this report: Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Hg, Ni, K, Se, Na, Tl, V, and Zn. RSL database summary statistics, mean, median, minimum, maximum, 5th percentile, and 95th percentile, are determined for Illinois counties and for recognized environmental concern, non-recognized environmental concern, and de minimis site contamination classifications.
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Anderson, Andrew, and Mark Yacucci. Inventory and Statistical Characterization of Inorganic Soil Constituents in Illinois. Illinois Center for Transportation, June 2021. http://dx.doi.org/10.36501/0197-9191/21-006.

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This report presents a statistical analysis of the Regulated Substances Library (RSL) developed by the Illinois Department of Transportation. The RSL is comprised of surficial soil chemistry data obtained from rights-of-way subsurface soil sampling conducted for routine preliminary site investigations. The 3.7-million-record RSL database is compared with four independent studies of inorganic soil constituents of naturally occurring soils in Illinois. A selection of 22 inorganic soil analytes are examined in this study: Al, Sb, As, Ba, Be, Cd, Ca, Cr, Co, Cu, Fe, Pb, Mg, Mn, Hg, Ni, K, Se, Na, Tl, V, and Zn. RSL database summary statistics, mean, median, minimum, maximum, 5th percentile, and 95th percentile, are determined for Illinois counties and for recognized environmental concern, non-recognized environmental concern, and de minimis site contamination classifications. The RSL database at a 95% confidence level is compared with current and proposed thresholds for defining naturally occurring soil concentrations for the selected analytes. The revised thresholds proposed by Cahill in 2017 are predominantly larger than the current standards found in the Tiered Approach to Corrective Action Objectives rules and are in better agreement with observed distributions of soil concentrations for both naturally occurring and RSL soils. A notable exception is antimony (Sb), for which Cahill proposed a reduced threshold similar in magnitude to the median for many Illinois Department of Transportation districts.
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