Calcium

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Calcium is the chemical element with the symbol Ca and atomic number 20. (Wikipedia.org)






Conferences related to Calcium

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2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Ferroelectric materials and applications


Oceans 2020 MTS/IEEE GULF COAST

To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.

  • OCEANS 2018 MTS/IEEE Charleston

    Ocean, coastal, and atmospheric science and technology advances and applications

  • OCEANS 2017 - Anchorage

    Papers on ocean technology, exhibits from ocean equipment and service suppliers, student posters and student poster competition, tutorials on ocean technology, workshops and town meetings on policy and governmental process.

  • OCEANS 2016

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 500 technical papers and 150 -200 exhibits.

  • OCEANS 2015

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2014

    The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2013

    Three days of 8-10 tracks of technical sessions (400-450 papers) and concurent exhibition (150-250 exhibitors)

  • OCEANS 2012

    Ocean related technology. Tutorials and three days of technical sessions and exhibits. 8-12 parallel technical tracks.

  • OCEANS 2011

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2010

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2009

  • OCEANS 2008

    The Marine Technology Society (MTS) and the Oceanic Engineering Society (OES) of the Institute of Electrical and Electronic Engineers (IEEE) cosponsor a joint conference and exposition on ocean science, engineering, education, and policy. Held annually in the fall, it has become a focal point for the ocean and marine community to meet, learn, and exhibit products and services. The conference includes technical sessions, workshops, student poster sessions, job fairs, tutorials and a large exhibit.

  • OCEANS 2007

  • OCEANS 2006

  • OCEANS 2005

  • OCEANS 2004

  • OCEANS 2003

  • OCEANS 2002

  • OCEANS 2001

  • OCEANS 2000

  • OCEANS '99

  • OCEANS '98

  • OCEANS '97

  • OCEANS '96


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Science, technology and applications spanning the millimeter-waves, terahertz and infrared spectral regions


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Periodicals related to Calcium

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Antennas and Wireless Propagation Letters, IEEE

IEEE Antennas and Wireless Propagation Letters (AWP Letters) will be devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Dielectrics and Electrical Insulation, IEEE Transactions on

Electrical insulation common to the design and construction of components and equipment for use in electric and electronic circuits and distribution systems at all frequencies.


Electron Devices, IEEE Transactions on

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


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Most published Xplore authors for Calcium

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Xplore Articles related to Calcium

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Discussion on “electrolytic corrosion in reinforced concrete.” Chicago, June 30, 1911. (see proceedings for May, 1911)

Proceedings of the American Institute of Electrical Engineers, 1911

None


Flow-Induced Shear Stress Alters The Three Dimensional Architecture And The Calcium Concentration Of The Endothelial Cell Nucleus

Proceedings of the 17th Southern Biomedical Engineering Conference, 1998

None


Survey Of EM Effects And Public Policy Implications

Electro International, 1991, 1991

Health effects from 60 Hz electric and magnetic fields have become a matter of public and industry concern in recent years. This article examines the scientific evidence briefly with a focus on the uncertainty, and discusses the public policy implications.


Cardiac Arrhythmogenesis and Temperature

2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006

Fast processes in cardiac electrophysiology are often studied at temperatures lower than physiological. Extrapolation of values is based on widely accepted Q10 (Arrhenius) model of temperature dependence (ratio of kinetic properties for a 10degC change in temperature). In this study, we set out to quantify the temperature dependence of essential parameters that define spatiotemporal behavior of cardiac excitation. Additionally, we ...


Live demonstration: In-vivo imaging of neural activity with dynamic vision sensors

2017 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2017

The demonstration shows the comparison of two novel Dynamic and Active Pixel Vision Sensors (DAVIS) in the context of a simulated neural imaging experiment. The first sensor, the SDAVIS, has, although a lower resolution (188×192) with respect to the previous generation of DAVIS sensors, 10X higher temporal contrast sensitivity. The second sensor, BSIDAVIS, combines a higher resolution (346×260) with a ...


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Educational Resources on Calcium

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IEEE.tv Videos

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IEEE-USA E-Books

  • Discussion on “electrolytic corrosion in reinforced concrete.” Chicago, June 30, 1911. (see proceedings for May, 1911)

    None

  • Flow-Induced Shear Stress Alters The Three Dimensional Architecture And The Calcium Concentration Of The Endothelial Cell Nucleus

    None

  • Survey Of EM Effects And Public Policy Implications

    Health effects from 60 Hz electric and magnetic fields have become a matter of public and industry concern in recent years. This article examines the scientific evidence briefly with a focus on the uncertainty, and discusses the public policy implications.

  • Cardiac Arrhythmogenesis and Temperature

    Fast processes in cardiac electrophysiology are often studied at temperatures lower than physiological. Extrapolation of values is based on widely accepted Q10 (Arrhenius) model of temperature dependence (ratio of kinetic properties for a 10degC change in temperature). In this study, we set out to quantify the temperature dependence of essential parameters that define spatiotemporal behavior of cardiac excitation. Additionally, we examined temperature's effects on restitution dynamics. We employed fast fluorescence imaging with voltage-and calcium-sensitive dyes in neonatal rat cardiomyocyte sheets. Conduction velocity (CV), calcium transient duration (CTD), action potential duration (APD) and wavelength (W=CV*duration) change as functions of temperature were quantified. Using 24degC as a reference point, we found a strong temperature-driven increase of CV (Q10=2.3) with smaller CTD and APD changes (Q10=1.33, 1.24, respectively). The spatial equivalents of voltage and calcium duration, wavelength, were slightly less sensitive to temperature with Q10=2.05 and 1.78, respectively, due to the opposing influences of decreasing duration with increased velocity. More importantly, we found that Q10 varies as a function of diastolic interval. Our results indicate the importance of examining temperature sensitivity across several frequencies. Armed with our results, experimentalists and modelers alike have a tool for reconciling different environmental conditions. In a broader sense, these data help better understand thermal influences on arrhythmia development or suppression such as during hibernation or cardiac surgery

  • Live demonstration: In-vivo imaging of neural activity with dynamic vision sensors

    The demonstration shows the comparison of two novel Dynamic and Active Pixel Vision Sensors (DAVIS) in the context of a simulated neural imaging experiment. The first sensor, the SDAVIS, has, although a lower resolution (188×192) with respect to the previous generation of DAVIS sensors, 10X higher temporal contrast sensitivity. The second sensor, BSIDAVIS, combines a higher resolution (346×260) with a higher light sensitivity (quantum efficiency) because of its Back Side Illumination (BSI) manufacturing.

  • Effect of sigma receptor ligand haloperidol on guinea pig isolated heart electrogram

    Cardiac sigma receptors are involved in fine modulation of contractility in mammalian myocardium. Their role in the changes of cardiac excitability is studied using various experimental models. In this study, the effect of sigma receptor ligand, psychotropic drug haloperidol, was examined in isolated guinea pig hearts perfused according to Langendorff. Electrogram and coronary flow changes were followed in control and during two administrations of haloperidol. Prolongation of QT interval was found in the first, but not in the second haloperidol application. It is concluded, that sigma ligand haloperidol affects repolarization phase of cardiac electrogram and this process may explain various rhythm disturbances reported in patients treated with haloperidol.

  • Automatic construction of 3D structural motifs for protein function prediction

    Structural genomics initiatives are on the verge of generating a vast number of protein structures. The biological roles for many of these proteins are still unknown, and high-throughput methods for determining their function are necessary. Understanding the function of these proteins will have profound impact in drug development and protein engineering. Current methods for protein function prediction on structures require manual creation of structural motifs. Thus only few structural motifs are available. The lack of structural motifs limits the use of these methods for function prediction at a structural-genomics scale. To overcome this limitation, we describe a method for automatically creating a library of three dimensional structural motifs. Automatically generating a library of structural motifs can be used for structural-genomic scale function prediction on protein structures.

  • Calcium ion current from an extracellular electrolyte toward a channel opening in an insulating membrane: quantitative model with rotational symmetry

    A mathematical model of three-dimensional (3-D) ion transport is formulated in an approximation assuming rotational symmetry. The model consists of three particle-conservation equations for sodium, calcium, and chlorine ions complemented with the Poisson equation. The numerical method of solution is based on the Gummel-Scharfetter semianalytical approach, the program is written in FORTRAN and the system of discrete equations is solved explicitly in the axial direction and by iterations in the radial direction. The present report deals with calcium flux toward a channel opening in an insulating impermeable membrane, assuming depolarization to zero potential. The initial homogeneous concentrations of sodium, calcium, and chlorine ions are 8.729/spl times/10/sup 19/, 6.02/spl times/10/sup 17/, and 8.849/spl times/10/sup 19/ (cm/sup -3/), respectively, corresponding to molar concentrations of 145-mM NaCl and 1-mM of CaCl/sub 2/; the calcium concentration in the circle representing the channel entry is set at 0.1 /spl mu/M, corresponding approximately to the concentration of free calcium ions in the cytoplasm. The calculations were carried out up to 3 /spl mu/s. The calcium flux caused a perturbation of quasi-neutrality and the formation of a space charge, which reached the maximum value (i.e., maximum in absolute value) of -0.2 Ccm/sup -3/ at the channel entry; the corresponding maximum of the axial component of the electric field was about 1 kV/cm. The maximum value of the calcium current was 0.362 pA, decreasing to 0.283 pA at 3 /spl mu/s. A review of several experimental studies of calcium currents yielded the average current values for higher and lower conductance channels (mainly L- and T-type) 0.76 and 0.42 pA, respectively. This implies that, at Ca/sup ++/ concentrations of 1 mM or lower the calcium ion current may be limited by the ion influx from an extracellular medium.

  • Characterisation of atherosclerotic plaque by spectral analysis of 30 MHz intravascular ultrasound radio frequency data

    Accurate coronary plaque characterisation by ultrasound would have a major impact on the management of cardiac patients. The aim of this study has been to develop radio-frequency analysis techniques for this purpose. Postmortem coronary arteries (n=5) were imaged with 30 MHz intravascular ultrasound (IVUS) and the raw signals digitised (f=250 MHz) at 11 sites. Spectral parameters were compiled from regions of interest (ROIs=45) within areas of loose fibrotic tissue (DFT), moderate fibrotic tissue (MFT), dense fibrotic tissue (DFT) and calcium (CA), located using scan-converted representations of the data. Power spectra were normalised with respect to a perfect reflector and power- and frequency-related parameters were measured within the bandwidth 17-42 MHz. Significant discrimination between LFT/DFT and LFT/CA was given by maximum power and spectral slope (dB/MHz). The clearest discrimination was provided by the 0 Hz intercept of the spectral slope: LFT/DFT (p<.001); LFT/CA (p<.0001); DFT/CA (p<.1). In order to evaluate the predictive power of these measurements, parametric images were constructed to show the distribution of the plaque types as determined by each parameter.

  • Chemiluminescence and photoluminescence spectroscopy of the barium monohalides

    None



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