Academic literature on the topic 'Ion action'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ion action.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Ion action"

1

Jan, Lily Yeh. "Ion Channels—Molecules in Action." Cell 89, no. 6 (June 1997): 829–30. http://dx.doi.org/10.1016/s0092-8674(00)80267-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Fuchs, I., K. Philippar, and R. Hedrich. "Ion Channels Meet Auxin Action." Plant Biology 8, no. 3 (May 2006): 353–59. http://dx.doi.org/10.1055/s-2006-924121.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Liu, Mei Jie, Guo Ri Dong, and Ji Bin Wang. "The Effect of Heavy Metal Ion on Microorganism in Activated Sludge." Advanced Materials Research 926-930 (May 2014): 4377–80. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.4377.

Full text
Abstract:
Aiming at the effect of heavy metal ion on activated sludge microorganism, this paper has concluded predecessor literatures, and analyzed mechanism of action of metal ion to activated sludge microorganism and the effect to microbial growth kinetics. And it has concluded heavy metal ion effluent COD value, SV, SVI and effect of microbial community structure about activated sludge system. And then it has summarized heavy metal ion joint action on activated sludge microorganism, and some effect like pH element to heavy metal toxic actions.
APA, Harvard, Vancouver, ISO, and other styles
4

Brown, Arthur M. "Ion Channels in Action Potential Generation." Hospital Practice 27, no. 10 (October 15, 1992): 125–32. http://dx.doi.org/10.1080/21548331.1992.11705513.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kiefer, Jürgen, Mathias Brend'amour, and Uwe Stoll. "Heavy ion action on biological systems." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 107, no. 1-4 (February 1996): 292–98. http://dx.doi.org/10.1016/0168-583x(95)01035-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Green, Felicia, and Anna Simmonds. "Imaging metabolism in action." Physics World 34, no. 9 (December 1, 2021): 33–36. http://dx.doi.org/10.1088/2058-7058/34/09/30.

Full text
Abstract:
From improving the sensitivity of ion sources to boosting image resolution, Felicia Green and Anna Simmonds unveil the ambitious biological mass spectrometry programme at the Rosalind Franklin Institute to image molecular interactions in tissues.
APA, Harvard, Vancouver, ISO, and other styles
7

Meves, Hans. "The Action of Prostaglandins on Ion Channels." Current Neuropharmacology 4, no. 1 (January 1, 2006): 41–57. http://dx.doi.org/10.2174/157015906775203048.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Mikheev, S. Yu, I. I. Shkarban, Y. A. Ryzhov, S. A. Khartov, M. M. Gorshkov, and R. P. Markov. "Solid nanomembrane manufacture using ion-plasma action." Russian Aeronautics (Iz VUZ) 55, no. 1 (January 2012): 108–12. http://dx.doi.org/10.3103/s1068799812010175.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

LLOYD, MICHAEL. "Divine and Human Action in Euripides’ Ion." Antike und Abendland 32, no. 1 (December 31, 1986): 33–45. http://dx.doi.org/10.1515/9783110241440.33.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Ford, M. "Molecular action of insecticides on ion channels." Endeavour 20, no. 2 (January 1996): 92. http://dx.doi.org/10.1016/0160-9327(96)88426-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Dissertations / Theses on the topic "Ion action"

1

Khan, Tanwir Rahman. "Action of philanthotoxin on ion channels of arthropod muscle." Thesis, University of Nottingham, 1994. http://eprints.nottingham.ac.uk/11229/.

Full text
Abstract:
Calcium ions play an important role in many signalling pathways involved in normal cell metabolism. Pertrebations of normal Ca++ signalling may also play a pivotal role in the initiation of cell death. In these studies I have examined the influx of 45Ca++ into the extensor tibiae muscle of the locust (Schistocerca gregaria ). 45Ca++ entry could be stimulated by the addition of glutamate receptor-agonists or by activation of voltage activated calcium channels. L-glutamate, L-quisqualate and NMDA stimulated the influx of 45Ca++ while L-aspartate had only a small effect. DL-ibotenate, kainate, AMPA and glycine had no effect on 45Ca++ uptake (all agonists were tested at concentrations up to (100μM). Glycine (1μM) enhanced the 45Ca++ entry induced by NMDA and L-glutamate. Only the glycine potentiation of L-glu-stimulated responses was abolished in the presence of Mg++ (2mM) or AP5 (10μM) whereas the NMDA-stimulated response was completely abolished by these agents. These finding suggests that in the presence of glycine, L-glutamate may activate NMDA receptors and that in the absence of glycine L-glu-stimulated 45Ca++ entry occurs via activation of the qGluR. Depolarisation of the extensor tibiae muscles (50mM KCl) stimulated 45Ca++ influx by activation of voltage-sensitive calcium channels. Philanthotoxin-343 (0.1μM) had no effect on depolarisation activated calcium entry, however, nifedipine (1μM) an L-type calcium channel antagonist inhibited this Ca++ influx. Nifedipine did not inhibit L-glu-stimulated Ca++ entry suggesting that in these muscles L-type Ca++ channels are not involved in the Ca++ influx pathway following G1uR activation. Philanthotoxin-433 (PhTX-433) and many of its synthetic analogues are potent inhibitors of locust GluR. In the future these analogues may prove as useful potential neuroprotective agents or as novel pesticides. Over 100 analogues of PhTX-433 have been synthesized with changes made in the four regions of the structure, the thermospermine moiety, the tyrosyl moiety, the butyryl moiety and the terminal amino moiety. The effects of different concentrations (10-4M to 10-14M) of synthetic analogues of PhTX-433 (PhTX-343, PhTX-343-Arg, PhTX-4) were investigated in the 45Ca++ influx assay using locust extensor tibiae muscle. PhTX-343-Arg was more potent (IC50= - 7x10-9) than PhTX- 343 (IC50= - 10-8M) or PhTX-4 in blocking 45Ca H uptake. These findings were further supported by electrophysiological studies. The interaction of these synthetic analogues of philanthotoxin with GluR of locust muscle were further investigated by examining the effect of these compounds on evoked excitatory post synaptic potentials. In recent years control of ticks have been very important issue because of the social and economical damage they cause. Neuromuscular transmission is a main target site for the chemical control of many pests. Philanthotoxin and its analogues block the glutamate receptors which are involved in arthropod neuromuscular transmission and thus may prove useful as novel pesticides. The action of synthetic analogues of philanthotoxin (C7PhTX-343, DNP12-, PhTX-343 and PhTX-343) were examined on evoked excitatory postsynaptic potential in tick coxal muscle. These compounds all antagonized the evoked EPSP. C7PhTX-343 and DNP12-PhTX-343 exhibited same potency (IC50 = 10-8M) and both were more potent than PhTX-343 (IC50 ='2X10-5M). In recent years Xenopus oocyte has taken over a new role as a test tube for the study of the biogenesis, functional architecture and modulation of plasma membrane protein. Attempts were made to express mRNA from embryonic tissue of tick and locust leg muscle in to Xenopus oocyte for pharmacological studies. Xenopus oocytes failed to translate RNA faithfully and efficiently from these sources. Rat brain RNA injected oocytes used as control, expressed routinely.
APA, Harvard, Vancouver, ISO, and other styles
2

Nilsson, Johanna. "Molecular mechanisms of local anaesthetic action on voltage-gated ion channels /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7349-748-7/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zhang, Yanjun. "New insights of aldosterone action : a scanning ion conductance microscopy study." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.421900.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Minard, Aisling M. "Understanding the mode of action of TRPC1/4/5 ion channel modulators." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22481/.

Full text
Abstract:
Calcium ions are critical for cellular signalling and impact almost all aspects of cellular life. TRPC channels are non-selective cation channels permeable to both Na+ and Ca2+. TRPC channels are ubiquitously expressed in mammalian tissue and are linked to a wide range of pathological and physiological mechanisms. TRPC proteins can form both homo-and hetero-tetrameric channels. The natural composition and heteromerization of TRPC channels is poorly understood. However, they have been reported to be particularly promiscuous in the formation of heteromers. Over recent years numerous modulators of TRPC1/4/5 channels have been published; among them (-)-Engelrin A and Pico145 have emerged as particularly potent and specific activators and inhibitors of TRPC1/4/5 channels, respectively. However there still lacks evidence around the mode of action of these modulators and the ability to differentiate between TRPC1, TRPC4 and TRPC5 homomers and heteromers. This thesis explores approaches to unravel the mechanism of action of TRPC1/4/5 modulators. Firstly, recently published TRPC1/4/5 modulators, along with the pathology and advancements in structural information are reviewed in Chapter 1. Secondly, current approaches towards chemical labelling of target proteins is explored in Section 1.6 of Chapter 1. A range of cellular and biochemical techniques have been used in this thesis to unravel the mechanism of action of ion channel modulators and these have been briefly explained in Chapter 2. Chapter 3 details the development of novel TRPC5 modulators and investigation of the mechanism of action through calcium recording, electrophysiology and cyclic voltammetry experiments. Findings from these experiments suggest that the synthetic flavonol-based TRPC5 modulators act directly on the channel. The work in Chapter 4 details the use of photoaffinity probes based on the TRPC1/4/5 channel inhibitor, Pico145, to indicate a direct interaction with TRPC5. The work in this chapter identified that a known TRPC5 channel activator can distinguish between the closely related TRPC4 and TRPC5 proteins (~70% sequence identity). Structure activity relationships were explored on a series of TRPC5 inhibitors in Chapter 5. Overall this thesis demonstrates how multiple approaches can be used to unravel the mechanism of action of ion channel modulators in a synergistic manner.
APA, Harvard, Vancouver, ISO, and other styles
5

Muto, Yukiyo. "The synthesis and mode of action of NPPB and related compounds." Thesis, University of Canterbury. Biological Sciences, 2006. http://hdl.handle.net/10092/1522.

Full text
Abstract:
5-nitro-2-(3-phenylpropylamino)-benzoic acid (NPPB) was normally recognised as a Cl- channel inhibitor, but its specificity is in question, since an inhibitory effect against K⁺ channels has been reported. To identify the significance of the molecules structural components, NPPB and related compounds, such as 2-(3-phenylpropylamino) benzoic acid (PPAB), 5- nitro-2-heptylamino benzoic acid (HANB) and 2-nitro-5-heptylamino benzoic acid (HANB-2) were synthesised by reductive amination using various aldehydes and amines. Using internodal cells of the giant green Characean algae, Nitella hookeri, the effects of NPPB and related compounds on cytoplasmic streaming and turgor regulation were determined. Previous experiments stated that cytoplasmic streaming was sensitive to NPPB, PPAB and HANB with IC₅₀ values of 24µmol/L, 455µmol/L, and 6.4mmol/L, respectively. In this report, the IC₅₀ values of purchased NPPB and niflumic acid were found to be 88.65µmol/L and 121.82µmol/L, respectively. Although the IC₅₀ value of purchased NPPB showed a slight difference from that of synthesised NPPB, the results of the cytoplasmic streaming experiment indicated the possibility of this analysis to be a simple assay system for analysing the effects of structural modification to ion channel inhibitors on their biological activity. Moreover, NPPB and PPAB seem to stimulate regulation of turgor pressure under hyperosmotic shock, which can be explained by a blockage of K⁺ efflux during osmotic stress leading to faster recovery of turgor regulation. Additionally, the results of cytosolic free Ca²⁺ analysis using aequorin technology also suggested that the possibility of this analysis to be used as a more direct measure of the inhibitory effect, while the cytoplasmic streaming analysis is a more indirect method. The preliminary results from this research suggest the significance of the simple assay systems for analysing the effects of structural modification ion channel inhibitors, which can be used for future study regarding ion channel structures.
APA, Harvard, Vancouver, ISO, and other styles
6

Alhewairini, Saleh Sulaiman. "Action and toxicity of pesticides on Caenorhabditis elegans and voltage-gated ion channels." Thesis, University of Nottingham, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.662202.

Full text
Abstract:
The extensive applications of insecticides in agriculture and public health require appropriate methods to monitor their ecological and toxicological effects on target and non-target organisms. C.elegans was used as a model organism in this project as it has been successfully used to assess the toxicity of environmental pollutants including those in contaminated soil. C.elegans was used here to test various concentrations of insecticides/nematicides on wild-type and mutant worms. Direct observation and counting of pharyngeal muscle contraction was carried out and showed that incubation with anthelmintic or insecticide produced a concentration dependent inhibition of pharyngeal pumping in control animals. Results obtained showed that the CCA-l T-type calcium chatmelmay be such a target for pyrethroids and DDT. Worms lacking functional CCA-l (strain JD21) were less sensitive to both DDT and deltamethrin compared with wild-type N2 worms as pharyngeal pumping was reduced by DDT in N2 and JD21 st rains with ICso values of 909.2ppm and 9942ppm respectively and by deltamethrin with ICso values of 877.5ppm and 50527ppm respectively after a 1 h treatment. JD21 won11S were also more motile compared with N2 worms. EAT-2, an acetylcholine receptor subunit, may be affected by levamisole which is an acetylcholine receptor agonist, as DA465 worms lacking EAT -2 were less sensitive to levamiso le compared with N2 especially at lower concentrations.
APA, Harvard, Vancouver, ISO, and other styles
7

Campbell, G. "Is intravenous magnesium effective in cardiac arrhythmias?" Interim : Interdisciplinary Journal, Vol 7, Issue 2: Central University of Technology Free State Bloemfontein, 2008. http://hdl.handle.net/11462/385.

Full text
Abstract:
Published Article
Magnesium is the second most abundant intracellular cation with many control and regulatory functions. It regulates energy production and utilization and modulates activity of membrane ionic channels. Magnesium has direct control effects on cardiac myocyte ion channels making it useful in certain arrhythmias. Calcium is responsible for pacemaker excitation and for excitation-contraction coupling in myocytes but increased intracellular calcium produces early and late afterdepolarisations initiating arrhythmias. Magnesium regulates calcium channel activity preventing raised intracellular levels. Potassium channel activity is enhanced by magnesium hyperpolarizing the cell reducing arrhythmia generation. Magnesium is effective against long QT Torsade de Pointes. In rapid atrial fibrillation magnesium produces rate control slowing AV nodal conduction. Magnesium prevents digitalis toxicity due to associated hypomagnesemia.
APA, Harvard, Vancouver, ISO, and other styles
8

Mulaudzi, Takalani. "An investigation of the zinc binding characteristics of the RING finger domain from the human RBBP6 protein using heteronuclear NMR spectroscopy." Thesis, University of the Western Cape, 2007. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9063_1260173635.

Full text
Abstract:

 

Retinoblastoma binding protein 6 (RBBP6) is a 250 kDa human splicing-associated protein that is also known to interact with tumour suppressor proteins p53 and pRb and to mediate ubiquitination of p53 via its interaction with Hdm2. RBBP6 is highly up regulated in oesophageal cancer, and has been shown to be a promising target for immunotherapy against the disease. RBBP6 is also known to play a role in mRNA splicing, cell cycle control and apoptosis.

APA, Harvard, Vancouver, ISO, and other styles
9

Motloung, Setumo Victor. "Intense pulsed neutron generation based on the principle of Plasma Immersion Ion Implantation (PI3) technique." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_9599_1182748458.

Full text
Abstract:

The development of a deuterium-deuterium/ tritium-deuterium (D-D/ D-T) pulsed neutron generator based on the principle of the Plasma Immersion Ion Implantation (PI3) technique is presented, in terms of investigating development of a compact system to generate an ultra short burst of mono-energetic neutrons (of order 1010 per second) during a short period of time (<
20&mu
s) at repetition rates up to 1 kHz. The system will facilitate neutron detection techniques, such as neutron back-scattering, neutron radiography and time-of-flight activation analysis.


Aspects addressed in developing the system includes (a) characterizing the neutron spectra generated as a function of the target configuration/ design to ensure a sustained intense neutron flux for long periods of time, (b) the system was also characterised as a function of power supply operating conditions such as voltage, current, gas pressure and plasma density.

APA, Harvard, Vancouver, ISO, and other styles
10

Nkosi, Mlungisi Moses. "Preparation and physico-chemical properties of nickel nanostructured materials deposited in etched ion-track membrane." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6214_1182749152.

Full text
Abstract:

The development of finely dispersed powders and superfine-grained materials intended for application in various areas of science and engineering is one of the challenges facing modern nanotechnology. Thus, specific fundamental and applied research was required in order to consolidate advancement made in preparing nano- and submicron crystalline composite materials.


Useful templates for electrochemical deposition of nanowires include porous alumina films formed by anodic oxidation of aluminium, nuclear track-etched porous membranes, nanochannel array-glass and mesoporous channel hosts. The properties of the nanowires are directly related to the properties of the nanoporous templates such as, the relative pore orientations in the assembly, the pore size distribution, and the surface roughness of the pores. The template synthesis method, based on the use of porous polymeric and inorganic matrixes, is now actively used for synthesis of such composite materials. The method allows the chemical and/or electrochemical synthesis of nano- and microstructured tubes and wires consisting of conducting polymers, metals and semiconductors.


In this study various technological challenges relating to template synthesis and development of nickel nano- and microstructures on adequately strong and durable substrates were investigated. The two methods used were the electrochemical and chemical deposition. &ldquo
Hard nickel&rdquo
bath solution was used for optimal nickel deposition. This optimization included investigating variables such as the template structure, type of electrolyte and form of electrolytic deposition. Scanning Electron Microscopy was used to investigate the structures of template matrixes and the resultant materials. The cyclic voltammetry method was applied for the analysis of electrochemical properties and hydrogen evaluation reaction of nano- and microstructured nickel based electrodes. The activity of composite nano- and microstructured materials in various configurations resulting from pore filling of template matrices by nickel was explored. Studies of the physical structure and chemical properties of the nanostructured materials included investigating the necessary parameters of template matrices. The optimum conditions of synthesis, which allowed development of materials with the highest catalytic activity, were determined. 
The effect of the template structure on microcrystallinity of the catalyst particles was established using the XRD method. Different new types of non-commercial asymmetric ion track membranes has been tested for nanostructure preparation. The catalytic activity of the new developed nanomaterials is higher as compared to materials using commercial templates. The procedures to modify the newly developed nickel catalyst with Pt, Pd and Pt-Pd alloy have been developed. The Pt and Pt-Pd alloy containing catalyst showed the best performance in water electrolysis. In this work, the promising role for specific application of the new materials in hydrogen economy has been demonstrated.

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Ion action"

1

R, Stanfield Peter, ed. Ion channels: Molecules in action. Cambridge: Cambridge University Press, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Clark, J. Marshall, ed. Molecular Action of Insecticides on Ion Channels. Washington, DC: American Chemical Society, 1995. http://dx.doi.org/10.1021/bk-1995-0591.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Electrogenic ion pumps. Sunderland, Mass., U.S.A: Sinauer Associates, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

France, Collège de, ed. L'énergie: Stockage électrochimique et développement durable. Paris: Fayard, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ernst, Wasmuth, and Grapenthin Elke 1953-, eds. Ha Schult: Art is action : actions are experienced pictures. Tübingen: Wasmuth, 2001.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

D, Stein Wilfred, ed. The ion pumps: Structure, function, and regulation : proceedings of the First Shoresh Workshop on Ion Pumps, held at Shoresh, Israel, August 30th through September 2, 1987. New York: A.R. Liss, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Afanasʹev, Igor B. Superoxide ion: Chemistry and biological implications. Boca Raton: CRC Press, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

P, Green Robert, ed. Affirmative action. Santa Barbara, Calif: Greenwood Press, 2009.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Gardner, John. Ian Fleming's James Bond back in action: Three complete novels. New York: Avenel Books, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kowalski, Kathiann M. Affirmative action. New York: Marshall Cavendish Benchmark, 2006.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Ion action"

1

Narahashi, Toshio. "The Role of Ion Channels in Insecticide Action." In Insecticide Action, 55–84. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-1324-3_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Reuter, H. "Regulation of Ion Channels." In Molecular Mechanisms of Hormone Action, 126–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75022-9_15.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Bers, Donald M. "Cardiac Action Potential and Ion Channels." In Excitation-Contraction Coupling and Cardiac Contractile Force, 63–100. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0658-3_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Zlotkin, Eli. "Insecticides Affecting Voltage-Gated Ion Channels." In Biochemical Sites of Insecticide Action and Resistance, 43–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-642-59549-3_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Capasso, Francesco, and Timothy S. Gaginella. "Role of Ion Transport in Laxative Action." In Laxatives, 11–18. Milano: Springer Milan, 1997. http://dx.doi.org/10.1007/978-88-470-2227-0_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Pottosin, Igor. "Polyamine Action on Plant Ion Channels and Pumps." In Polyamines, 229–41. Tokyo: Springer Japan, 2014. http://dx.doi.org/10.1007/978-4-431-55212-3_19.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

de Bakker, Jacques M. T., and Harold V. M. van Rijen. "Cardiac Action Potentials, Ion Channels, and Gap Junctions." In Cardiac Electrophysiology Methods and Models, 53–72. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-6658-2_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Breuker, Kathrin. "Characterization of Ribonucleic Acids and Their Modifications by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry." In Physical Chemistry in Action, 185–202. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54842-0_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Adeniran, Ismail. "Introduction to Ion Channels and the Cardiac Action Potential." In Modelling the Short QT Syndrome Gene Mutations, 1–31. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07200-5_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Harris, R. A., M. P. Mascia, and I. A. Lobo. "Sites of anaesthetic action on ligand-gated ion channels." In Anaesthesia, Pain, Intensive Care and Emergency Medicine — A.P.I.C.E., 857–62. Milano: Springer Milan, 2003. http://dx.doi.org/10.1007/978-88-470-2215-7_17.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Ion action"

1

ESCHNER, JÜRGEN, PAVEL BUSHEV, ALEX WILSON, FERDINAND SCHMIDT-KALER, CHRISTOPH BECHER, CHRISTOPH RAAB, and RAINER BLATT. "VACUUM-FIELD MECHANICAL ACTION ON A SINGLE ION." In Proceedings of the XVI International Conference. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812703002_0042.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Komuro, Rie, and Ilangko Balasingham. "Effects of ion channel currents on induced action potentials." In 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER). IEEE, 2013. http://dx.doi.org/10.1109/ner.2013.6696006.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

John, R. "Failure Isolation of Mobile Ions Using Secondary Ion Mass Spectroscopy." In ISTFA 1997. ASM International, 1997. http://dx.doi.org/10.31399/asm.cp.istfa1997p0273.

Full text
Abstract:
Abstract Secondary Ion Mass Spectroscopy (SIMS) can be applied to all elements, and it facilitates the quantitative analysis of solid surfaces, including monolayers. The method is widely used in studies of adsorption, oxidation, corrosion, catalysis, diffusion and in characterization of thin films and coatings. [1] This technique can very well be applied in semiconductor failure analysis for not only detecting the source of failure, but also isolating the failure to a particular location, which is very important for corrective action procedures. SIMS analysis was performed on a CMOS VLSI sample with suspected mobile ionic problem, and it proved to be very effective in providing details of the specific mobile ionic elements involved, source of contamination, and resident location of the mobile ions.
APA, Harvard, Vancouver, ISO, and other styles
4

Sundaresan, Vishnu-Baba. "Frequency Dependent Ion Rejection Properties of Active Nanoporous Membranes." In ASME 2013 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/smasis2013-3202.

Full text
Abstract:
Selective rejection of dissolved salts in water is achieved by large pressure gradient driven flows through tortuous structures and cylindrical nanopores. The flow rate through the membrane is dependent on the area of the membrane and pressure gradient that can be sustained by the membrane. The electrical power required for generating large pressure gradients increases the operational cost for desalination units and limits application of contemporary technologies in a wide variety of applications. Due to this limitation, small scale operation of these desalination systems is not economical and portable. Further, recently proposed desalination systems using carbon nanotubes and nanofluidic diodes have limited lifetime due to clogging and fouling from contaminants in feed water. In order to develop a desalination system that is not limited by cost, scale of operation and application, an active nanopore membrane that uses multiphysics interactions in a surface-functionalized hyperboloidal nanopore is developed. An active nanopore is a shape-changing hyperboloidal pore that is formed in a rugged electroactive composite membrane and utilizes coupled electrostatic, hydrodynamic and mechanical interactions due to reversible mechanical oscillations between the charged pore walls and dissolved ions in water for desalination. This novel approach takes advantage of the shape of the pore to create a pumping action in the hyperboloidal channel to selectively transport water molecules. In order to demonstrate the applicability of this novel concept for water desalination, the paper will use a theoretical model to model the ion rejection properties and flow rate of purified water through an active nanoporous membrane. This article examines the effect of the geometry of the nanopore and frequency of operation to reject dissolved ions in water through a multiphysics model. It is estimated that the neck diameter of the active nanopores is the most dominant geometrical feature for achieving ion rejection, and the flux linearly increases with the frequency of operation (between 2–50Hz). The threshold neck diameter of the nanopore required for achieving rejection from multiphysics simulation is observed to be 100nm. The flux through the membrane decreases significantly with decreasing diameter and becomes negligible at 10nm effective neck diameter.
APA, Harvard, Vancouver, ISO, and other styles
5

Martin, Christopher R., Joseph Kinney, Andrew Matzik, and Jessica Molina. "Electrical Signatures for Chemical Action at the Work Surface in an Oxyfuel Flame." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6354.

Full text
Abstract:
An oxyfuel cutting torch was biased with a positive DC voltage relative to steel and copper work pieces, and ion currents were seen to flow due to ions generated chemically in the flame and at the work surface. A repeatable 150% rise in these currents occurs over steel at a surface temperature around 1050°C. Equally strong intermittent spikes appear over clean and corroded steel samples alike. They are are easily removed by a median value filter, and are believed to be due to small reacting particulates. Tests in which salt was deliberately deposited on the steel surface produces a signal similar in shape, but exaggerated in magnitude to those currents supposed to be from other surface impurities.
APA, Harvard, Vancouver, ISO, and other styles
6

Dvurechenskii, Anatoly V., J. V. Smagina, V. A. Zinovyev, V. A. Armbrister, S. A. Teys, and A. K. Gutakovskii. "Surface morphology transitions induced by ion beam action during Ge/Si MBE." In SPIE Proceedings, edited by Kamil A. Valiev and Alexander A. Orlikovsky. SPIE, 2004. http://dx.doi.org/10.1117/12.558329.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Kourogi, Masakatsu, Tomoya Ishikawa, and Takeshi Kurata. "A method of pedestrian dead reckoning using action recognition." In 2010 IEEE/ION Position, Location and Navigation Symposium - PLANS 2010. IEEE, 2010. http://dx.doi.org/10.1109/plans.2010.5507239.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Thorwirth, Sven, Stephan Schlemmer, Oskar Asvany, and Charles Markus. "HIGH-RESOLUTION DOUBLE RESONANCE ACTION SPECTROSCOPY IN ION TRAPS: VIBRATIONAL AND ROTATIONAL FINGERPRINTS OF CH2NH2+." In 2020 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.ti05.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Taccone, Martín, Gerard Meijer, Gert von Helden, Katja Ober, and Daniel Thomas. "CHARACTERIZING HYDROGEN-BONDED SYSTEMS BY COLD-ION INFRARED ACTION SPECTROSCOPY: THE FORMIC ACID TRIMER CASE." In 2021 International Symposium on Molecular Spectroscopy. Urbana, Illinois: University of Illinois at Urbana-Champaign, 2021. http://dx.doi.org/10.15278/isms.2021.rk05.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Simmons, D. J., M. Krukowski, L. X. Bi, and E. Mainous. "Positively and Negatively-Charged Ion Exchange Resins: Disparate Effects on Hard Tissue Repair." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0310.

Full text
Abstract:
Abstract Bioelectrical investigations have long shown that surfaces of bone formation and resorption are negatively and positively charged respectively. We also know that in a number of experimental situations [1], implants of negatively-charged ion exchange resin (NCR= Sephadex, CM)are osteotropic, and that implants of positively-charged resin (PCR= Sephadex DEAE) strongly inhibit bone formation [2]. While the cellular mechanism of action for NCR is thought to involve the local production of transforming growth factor beta [3], the mechanics of PCR action is an unknown. Our laboratory has shown that PCR stunts the in vitro growth of medullary osteoprogenitor cells, normal and transformed osteoblasts, and a number of tumor cell lines [4], PCR was also able to strongly inhibit hamster pancreatic cell engraftment and the growth of established pancreatic cell tumors.
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Ion action"

1

McKinnon, Mark, Sean DeCrane, and Steve Kerber. Four Firefighters Injured in Lithium-Ion Battery Energy Storage System Explosion -- Arizona. UL Firefighter Safety Research Institute, July 2020. http://dx.doi.org/10.54206/102376/tehs4612.

Full text
Abstract:
On April 19, 2019, one male career Fire Captain, one male career Fire Engineer, and two male career Firefighters received serious injuries as a result of cascading thermal runaway within a 2.16 MWh lithium-ion battery energy storage system (ESS) that led to a deflagration event. The smoke detector in the ESS signaled an alarm condition at approximately 16:55 hours and discharged a total flooding clean agent suppressant (Novec 1230). The injured firefighters were members of a hazardous materials (HAZMAT) team that arrived on the scene at approximately 18:28 hours. The HAZMAT team noted low-lying white clouds of a gas/vapor mixture issuing from the structure and nearby components and drifting through the desert. The team defined a hot zone and made several entries into the hot zone to conduct 360-degree size-ups around the ESS using multi-gas meters, colorimetric tubes, and thermal imaging cameras (TICs). The team detected dangerously elevated levels of hydrogen cyanide (HCN) and carbon monoxide (CO) during each entry. The team continued to monitor the ESS and noted the white gas/vapor mixture stopped flowing out of the container at approximately 19:50 hours. The HAZMAT leadership developed an incident action plan with input from a group of senior fire officers and information about the ESS provided by representatives from the companies that owned, designed, and maintained the ESS. The HAZMAT team made a final entry into the hot zone and found that HCN and CO concentrations in the vicinity of the ESS were below an acceptable threshold. In following with the incident action plan, the team opened the door to the ESS at approximately 20:01 hours. A deflagration event was observed by the firefighters outside the hot zone at approximately 20:04 hours. All HAZMAT team members received serious injuries in the deflagration and were quickly transported to nearby hospitals. Note: The lithium-ion battery ESS involved in this incident was commissioned prior to release of a first draft of the current consensus standard on ESS installations, NFPA 855 [1]; the design of the ESS complied with the pertinent codes and standards active at the time of its commissioning.
APA, Harvard, Vancouver, ISO, and other styles
2

Scotchmer, Suzanne. Affirmative Action in Hierarchies. Cambridge, MA: National Bureau of Economic Research, March 2005. http://dx.doi.org/10.3386/w11213.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Athanson, John W., James A. Taylor, William F. Diehl, Jr Summers, MacNevin Harry G., and Ken. Civic Action in SOUTHCOM. Fort Belvoir, VA: Defense Technical Information Center, May 1985. http://dx.doi.org/10.21236/ada163540.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Addis, Louise. The Virtual Library in Action. Office of Scientific and Technical Information (OSTI), July 1999. http://dx.doi.org/10.2172/10106.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Malott, David E. Military Civic Action in Colombia. Fort Belvoir, VA: Defense Technical Information Center, August 1985. http://dx.doi.org/10.21236/ada158207.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Köstner, Nicole, and Toste Tanhua. Action Progress Report #1. EuroSea, December 2020. http://dx.doi.org/10.3289/eurosea_d9.1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Rob, Ubaidur, and Donna Nager. Support for research, dissemination, utilization, and policy in Bangladesh. Population Council, 1995. http://dx.doi.org/10.31899/rh1995.1030.

Full text
Abstract:
Through the initiative of the Family Planning Fortnight: Meeting the Future Challenges, held in December 1993, the Government of Bangladesh made a policy statement about the critical importance of dealing with the nation's population problem. The Fortnight provided the strategic framework for developing actions to strengthen the National Family Planning Program that would meet the country's population challenges. To initiate rapid action, the Family Planning Fortnight Steering Committee, under the chairmanship of the Secretary, Ministry of Health and Family Welfare, formed a working group to prepare a report that would capitalize on all earlier efforts and lay out a plan of action. The working group identified a number of priority areas requiring immediate action to regain the momentum of the National Family Planning Program, and to ensure success in meeting the government's demographic, social, and economic goals. The working group recognized that there are a number of long-term, strategic policy issues that also require quick attention. As noted in this report, efforts to increase the dissemination and utilization of research results for policy formulation have been productive in Bangladesh from the perspective of the government, NG0s, and donors.
APA, Harvard, Vancouver, ISO, and other styles
8

Chen, Cuicui, and Richard Zeckhauser. Collective Action in an Asymmetric World. Cambridge, MA: National Bureau of Economic Research, May 2016. http://dx.doi.org/10.3386/w22240.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

COMBAT STUDIES INST PRESS FORT LEAVENWORTH KS. Wanat: Combat Action in Afghanistan, 2008. Fort Belvoir, VA: Defense Technical Information Center, January 2010. http://dx.doi.org/10.21236/ada532597.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Lambert, Peter J. NATO In Africa: Ready for Action? Fort Belvoir, VA: Defense Technical Information Center, April 2007. http://dx.doi.org/10.21236/ada476715.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography