Magnetic stimulation of polysaccharide accumulation in cultures of Streptococcus mutans

1983 ◽  
Vol 29 (4) ◽  
pp. 464-467 ◽  
Author(s):  
Vincent W. Adamkiewicz ◽  
Denis R. Pilon
Keyword(s):  
Magnetic Field ◽  
Streptococcus Mutans ◽  
Magnetic Stimulation ◽  
Bacterial Polysaccharide ◽  
Preferential Accumulation ◽  
Oral Bacterium ◽  
Microscope Slides ◽  
The Magnetic Field ◽  
Stimulation Of

Microscope slides, dipped 24 h into cultures of oral bacterium Streptococcus mutans, accumulated up to 66% more bacterial polysaccharide on the side of the slides facing north. Reversal of the magnetic field by 180° caused similar reversal of the preferential accumulation. The process of preferential accumulation becomes saturated at 1.7 gauss [Formula: see text].

Remote and real time control of an FVIO–enzyme hybrid nanocatalyst using magnetic stimulation

Nanoscale ◽  
2019 ◽  
Vol 11 (39) ◽  
pp. 18081-18089 ◽  
Author(s):  
Ran Xiong ◽  
Wenting Zhang ◽  
Yifan Zhang ◽  
Ye Zhang ◽  
Yimin Chen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Real Time ◽  
Magnetic Stimulation ◽  
Local Heating ◽  
Alternating Magnetic Field ◽  
Field Stimulation ◽  
Hybrid Catalyst ◽  
Real Time Control ◽  
Time Control ◽  
Stimulation Of

Rapid and effective local heating was achieved by alternating magnetic field stimulation of the ferrimagnetic vortex-domain nanoring (FVIO) structure, enabling real-time and specific modulation of the nanosized FVIO–enzyme hybrid catalyst.

Review on Electromagnetic Stimulation of Alive Tissues

2016 ◽  
Vol 0 (0) ◽  
Author(s):  
Oana Drosu ◽  
Marilena Stanculescu
Keyword(s):  
Magnetic Field ◽  
Chemical Transport ◽  
Biological Tissues ◽  
The Body ◽  
Excitable Cells ◽  
Electromagnetic Stimulation ◽  
Excitable Tissue ◽  
First Case ◽  
The Magnetic Field ◽  
Stimulation Of

AbstractThe electric, magnetic or electromagnetic phenomena that occur in the biological tissues include: the behavior of excitable tissue (the sources), the electric currents and potentials in the volume conductor, the magnetic field at and beyond the body, the response of excitable cells to electric and magnetic field stimulation (through changes in their electrical activity, changes of chemical transport through cell membrane); the intrinsic electric and magnetic properties of the tissue. This paper presents an overview of fundamental phenomena occurring in the application of stimuli with a future purpose of focusing on several models of external electromagnetic stimulation. The target is to create models of the electroconductive anatomy of some alive tissues will be proposed, in order to investigate the fields and the currents generated by the on-set of an electric field (in the first case) or a time-variant magnetic field (in the second case) or the superposition of the two types of stimuli.

MR-based measurements and simulations of the magnetic field created by a realistic transcranial magnetic stimulation (TMS) coil and stimulator

2016 ◽  
Vol 29 (11) ◽  
pp. 1590-1600 ◽  
Author(s):  
Stefano Mandija ◽  
Petar I. Petrov ◽  
Sebastian F.W. Neggers ◽  
Peter R. Luijten ◽  
Cornelis A.T. van den Berg
Keyword(s):  
Magnetic Field ◽  
Transcranial Magnetic Stimulation ◽  
Magnetic Stimulation ◽  
The Magnetic Field

Improvement of Technology of Electrical and Magnetic Stimulation of Seeds and Crop Plants

2020 ◽  
pp. 365-396 ◽  
Author(s):  
Igor Viktorovich Yudaev ◽  
Sergey Mashkov ◽  
Sergey Vasilyev ◽  
Vladimir Syrkin ◽  
Sergey Shevchenko ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Plant Growth ◽  
Magnetic Stimulation ◽  
Growth Period ◽  
Crop Plants ◽  
Cultivated Plants ◽  
Maximum Efficiency ◽  
Vegetable Crops ◽  
High Yields ◽  
Stimulation Of

Use of a variety of electrotechnics is a technologically-efficient and environmentally-friendly technique that increases the productivity of cultivated plants. Stimulation of green plants and vegetable crops in electric field with the intensity of 5-50 kV/m made it clear that the maximum efficiency is observed in the growth period – an increase of up to 30%, compared to the control. Plants have been subjected to stimulation for 3 hours twice a day (in the morning and in the evening). Analysis of studies on the pre-seeding seed stimulation showed that the exposure to pulsed magnetic field improves the dynamics of germination and plant growth at the early stages of development by an average of 10-20%, and more uniform germination helps to ensure high yields.

Observing the galactic magnetic field

1967 ◽  
Vol 31 ◽  
pp. 375-380
Author(s):  
H. C. van de Hulst
Keyword(s):  
Magnetic Field ◽  
Fair Agreement ◽  
Solar Neighbourhood ◽  
Galactic Magnetic Field ◽  
The Magnetic Field

Various methods of observing the galactic magnetic field are reviewed, and their results summarized. There is fair agreement about the direction of the magnetic field in the solar neighbourhood:l= 50° to 80°; the strength of the field in the disk is of the order of 10-5gauss.

Evolution of Large-Scale Coronal Structures

1994 ◽  
Vol 144 ◽  
pp. 29-33
Author(s):  
P. Ambrož
Keyword(s):  
Magnetic Field ◽  
Field Line ◽  
Large Scale ◽  
Coronal Magnetic Field ◽  
Source Surface ◽  
Solar Cycles ◽  
Characteristic Relationship ◽  
The Magnetic Field ◽  
Coronal Structures

AbstractThe large-scale coronal structures observed during the sporadically visible solar eclipses were compared with the numerically extrapolated field-line structures of coronal magnetic field. A characteristic relationship between the observed structures of coronal plasma and the magnetic field line configurations was determined. The long-term evolution of large scale coronal structures inferred from photospheric magnetic observations in the course of 11- and 22-year solar cycles is described.Some known parameters, such as the source surface radius, or coronal rotation rate are discussed and actually interpreted. A relation between the large-scale photospheric magnetic field evolution and the coronal structure rearrangement is demonstrated.

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