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LGBT protest against Russian anti-gay laws - London 03.09.2013
Several hundred gay, lesbian, bisexual and transgendered people protested outside Downing Street to loudly protest against recently-introduced anti-gay laws in Russia, which have been accompanied by a vicious campaign by the Russian Orthodox Church and extremist nationalist groups in the country. Many gay people have been violently attacked in the streets by police and extremists, and there have been several murders of gay people since the new law - signed by President Putin on June 30th 2013 - which bans any "propaganda of nontraditional sexual relations to minors", and has been used as a blunt instrument to ban any gay pride events or protests.
Huge international concern has been raised by this new wave of violence meted out by the Russian state against gay people, and has led to calls for a boycott by commercial sponsors of the 2013 Winter Olympics in Sochi.
Online campaign organisation has an online petition running this week asking Coca Cola to be the first major Sochi Games sponsor to withdraw over this issue.
Amongst the protesters were many Russian LGBT people, as well as trade union support and a strong show of support from human rights campaigner Peter Tatchell. The protest was organised by campaign group All Out using the Twitter hashtag #Russia4Love.
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Based on research by Localytics, 22% of downloaded mobile phone application developer are just used once and 62% of application users are totally gone after 30 days. It’s important to possess a goal which goes past the mere quantity of downloads and maintains users by supplying continual value. When the application is downloaded, metrics like application engagement, usage, and lifelong value end up being the focus. Application prototyping will validate the merchandise with regards to the right market fit and consumer experience. This reduces costs before proceeding with further development.
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Patent US6506148 - Nervous system manipulation by electromagnetic fields from monitors
Publication number US6506148 B2
Publication type Grant
Application number US 09/872,528
Publication date Jan 14, 2003
Filing date Jun 1, 2001
Priority date Jun 1, 2001
Fee status Paid
Also published as US20020188164
Inventors Hendricus G. Loos
Original Assignee Hendricus G. Loos
Export Citation BiBTeX, EndNote, RefMan
Patent Citations (16), Non-Patent Citations (5), Referenced by (3), Classifications (6), Legal Events (3)
External Links: USPTO, USPTO Assignment, Espacenet
Nervous system manipulation by electromagnetic fields from monitors
US 6506148 B2
Abstract
Physiological effects have been observed in a human subject in response to stimulation of the skin with weak electromagnetic fields that are pulsed with certain frequencies near ½ Hz or 2.4 Hz, such as to excite a sensory resonance. Many computer monitors and TV tubes, when displaying pulsed images, emit pulsed electromagnetic fields of sufficient amplitudes to cause such excitation. It is therefore possible to manipulate the nervous system of a subject by pulsing images displayed on a nearby computer monitor or TV set. For the latter, the image pulsing may be imbedded in the program material, or it may be overlaid by modulating a video stream, either as an RF signal or as a video signal. The image displayed on a computer monitor may be pulsed effectively by a simple computer program. For certain monitors, pulsed electromagnetic fields capable of exciting sensory resonances in nearby subjects may be generated even as the displayed images are pulsed with subliminal intensity.
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Claims(14)
I claim:
1. A method for manipulating the nervous system of a subject located near a monitor, the monitor emitting an electromagnetic field when displaying an image by virtue of the physical display process, the subject having a sensory resonance frequency, the method comprising:
creating a video signal for displaying an image on the monitor, the image having an intensity;
modulating the video signal for pulsing the image intensity with a frequency in the range 0.1 Hz to 15 Hz; and
setting the pulse frequency to the resonance frequency.
2. A computer program for manipulating the nervous system of a subject located near a monitor, the monitor emitting an electromagnetic field when displaying an image by virtue of the physical display process, the subject having cutaneous nerves that fire spontaneously and have spiking patterns, the computer program comprising:
a display routine for displaying an image on the monitor, the image having an intensity;
a pulse routine for pulsing the image intensity with a frequency in the range 0.1 Hz to 15 Hz; and
a frequency routine that can be internally controlled by the subject, for setting the frequency;
whereby the emitted electromagnetic field is pulsed, the cutaneous nerves are exposed to the pulsed electromagnetic field, and the spiking patterns of the nerves acquire a frequency modulation.
3. The computer program of claim 2, wherein the pulsing has an amplitude and the program further comprises an amplitude routine for control of the amplitude by the subject.
4. The computer program of claim 2, wherein the pulse routine comprises:
a timing procedure for timing the pulsing; and
an extrapolation procedure for improving the accuracy of the timing procedure.
5. The computer program of claim 2, further comprising a variability routine for introducing variability in the pulsing.
6. Hardware means for manipulating the nervous system of a subject located near a monitor, the monitor being responsive to a video stream and emitting an electromagnetic field when displaying an image by virtue of the physical display process, the image having an intensity, the subject having cutaneous nerves that fire spontaneously and have spiking patterns, the hardware means comprising:
pulse generator for generating voltage pulses;
means, responsive to the voltage pulses, for modulating the video stream to pulse the image intensity;
whereby the emitted electromagnetic field is pulsed, the cutaneous nerves are exposed to the pulsed electromagnetic field, and the spiking patterns of the nerves acquire a frequency modulation.
7. The hardware means of claim 6, wherein the video stream is a composite video signal that has a pseudo-dc level, and the means for modulating the video stream comprise means for pulsing the pseudo-dc level.
8. The hardware means of claim 6, wherein the video stream is a television broadcast signal, and the means for modulating the video stream comprise means for frequency wobbling of the television broadcast signal.
9. The hardware means of claim 6, wherein the monitor has a brightness adjustment terminal, and the means for modulating the video stream comprise a connection from the pulse generator to the brightness adjustment terminal.
10. A source of video stream for manipulating the nervous system of a subject located near a monitor, the monitor emitting an electromagnetic field when displaying an image by virtue of the physical display process, the subject having cutaneous nerves that fire spontaneously and have spiking patterns, the source of video stream comprising:
means for defining an image on the monitor, the image having an intensity; and
means for subliminally pulsing the image intensity with a frequency in the range 0.1 Hz to 15 Hz;
whereby the emitted electromagnetic field is pulsed, the cutaneous nerves are exposed to the pulsed electromagnetic field, and the spiking patterns of the nerves acquire a frequency modulation.
11. The source of video stream of claim 10 wherein the source is a recording medium that has recorded data, and the means for subliminally pulsing the image intensity comprise an attribute of the recorded data.
12. The source of video stream of claim 10 wherein the source is a computer program, and the means for subliminally pulsing the image intensity comprise a pulse routine.
13. The source of video stream of claim 10 wherein the source is a recording of a physical scene, and the means for subliminally pulsing the image intensity comprise:
pulse generator for generating voltage pulses;
light source for illuminating the scene, the light source having a power level; and
modulation means, responsive to the voltage pulses, for pulsing the power level.
14. The source of video stream of claim 10, wherein the source is a DVD, the video stream comprises a luminance signal and a chrominance signal, and the means for subliminal pulsing of the image intensity comprise means for pulsing the luminance signal.
Description
BACKGROUND OF THE INVENTION
The invention relates to the stimulation of the human nervous system by an electromagnetic field applied externally to the body. A neurological effect of external electric fields has been mentioned by Wiener (1958), in a discussion of the bunching of brain waves through nonlinear interactions. The electric field was arranged to provide “a direct electrical driving of the brain”. Wiener describes the field as set up by a 10 Hz alternating voltage of 400 V applied in a room between ceiling and ground. Brennan (1992) describes in U.S. Pat. No. 5,169,380 an apparatus for alleviating disruptions in circadian rythms of a mammal, in which an alternating electric field is applied across the head of the subject by two electrodes placed a short distance from the skin.
A device involving a field electrode as well as a contact electrode is the “Graham Potentializer” mentioned by Hutchison (1991). This relaxation device uses motion, light and sound as well as an alternating electric field applied mainly to the head. The contact electrode is a metal bar in Ohmic contact with the bare feet of the subject, and the field electrode is a hemispherical metal headpiece placed several inches from the subject's head.
In these three electric stimulation methods the external electric field is applied predominantly to the head, so that electric currents are induced in the brain in the physical manner governed by electrodynamics. Such currents can be largely avoided by applying the field not to the head, but rather to skin areas away from the head. Certain cutaneous receptors may then be stimulated and they would provide a signal input into the brain along the natural pathways of afferent nerves. It has been found that, indeed, physiological effects can be induced in this manner by very weak electric fields, if they are pulsed with a frequency near ½ Hz. The observed effects include ptosis of the eyelids, relaxation, drowziness, the feeling of pressure at a centered spot on the lower edge of the brow, seeing moving patterns of dark purple and greenish yellow with the eyes closed, a tonic smile, a tense feeling in the stomach, sudden loose stool, and sexual excitement, depending on the precise frequency used, and the skin area to which the field is applied. The sharp frequency dependence suggests involvement of a resonance mechanism.
It has been found that the resonance can be excited not only by externally applied pulsed electric fields, as discussed in U.S. Pat. Nos. 5,782,874, 5,899,922, 6,081,744, and 6,167,304, but also by pulsed magnetic fields, as described in U.S. Pat. Nos. 5,935,054 and 6,238,333, by weak heat pulses applied to the skin, as discussed in U.S. Pat. Nos. 5,800,481 and 6,091,994, and by subliminal acoustic pulses, as described in U.S. Pat. No. 6,017,302. Since the resonance is excited through sensory pathways, it is called a sensory resonance. In addition to the resonance near ½ Hz, a sensory resonance has been found near 2.4 Hz. The latter is characterized by the slowing of certain cortical processes, as discussed in the '481, '922, '302, '744, '944, and '304 patents.
The excitation of sensory resonances through weak heat pulses applied to the skin provides a clue about what is going on neurologically. Cutaneous temperature-sensing receptors are known to fire spontaneously. These nerves spike somewhat randomly around an average rate that depends on skin temperature. Weak heat pulses delivered to the skin in periodic fashion will therefore cause a slight frequency modulation (fm) in the spike patterns generated by the nerves. Since stimulation through other sensory modalities results in similar physiological effects, it is believed that frequency modulation of spontaneous afferent neural spiking patterns occurs there as well.
It is instructive to apply this notion to the stimulation by weak electric field pulses administered to the skin. The externally generated fields induce electric current pulses in the underlying tissue, but the current density is much too small for firing an otherwise quiescent nerve. However, in experiments with adapting stretch receptors of the crayfish, Terzuolo and Bullock (1956) have observed that very small electric fields can suffice for modulating the firing of already active nerves. Such a modulation may occur in the electric field stimulation under discussion.
Further understanding may be gained by considering the electric charges that accumulate on the skin as a result of the induced tissue currents. Ignoring thermodynamics, one would expect the accumulated polarization charges to be confined strictly to the outer surface of the skin. But charge density is caused by a slight excess in positive or negative ions, and thermal motion distributes the ions through a thin layer. This implies that the externally applied electric field actually penetrates a short distance into the tissue, instead of stopping abruptly at the outer skin surface. In this manner a considerable fraction of the applied field may be brought to bear on some cutaneous nerve endings, so that a slight modulation of the type noted by Terzuolo and Bullock may indeed occur.
The mentioned physiological effects are observed only when the strength of the electric field on the skin lies in a certain range, called the effective intensity window. There also is a bulk effect, in that weaker fields suffice when the field is applied to a larger skin area. These effects are discussed in detail in the '922 patent.
Since the spontaneous spiking of the nerves is rather random and the frequency modulation induced by the pulsed field is very shallow, the signal to noise ratio (S/N) for the fm signal contained in the spike trains along the afferent nerves is so small as to make recovery of the fm signal from a single nerve fiber impossibile. But application of the field over a large skin area causes simultaneous stimulation of many cutaneous nerves, and the fm modulation is then coherent from nerve to nerve. Therefore, if the afferent signals are somehow summed in the brain, the fm modulations add while the spikes from different nerves mix and interlace. In this manner the S/N can be increased by appropriate neural processing. The matter is discussed in detail in the '874 patent. Another increase in sensitivity is due to involving a resonance mechanism, wherein considerable neural circuit oscillations can result from weak excitations.
An easily detectable physiological effect of an excited ½ Hz sensory resonance is ptosis of the eyelids. As discussed in the '922 patent, the ptosis test involves first closing the eyes about half way. Holding this eyelid position, the eyes are rolled upward, while giving up voluntary control of the eyelids. The eyelid position is then determined by the state of the autonomic nervous system. Furthermore, the pressure excerted on the eyeballs by the partially closed eyelids increases parasympathetic activity. The eyelid position thereby becomes somewhat labile, as manifested by a slight flutter. The labile state is sensitive to very small shifts in autonomic state. The ptosis influences the extent to which the pupil is hooded by the eyelid, and thus how much light is admitted to the eye. Hence, the depth of the ptosis is seen by the subject, and can be graded on a scale from 0 to 10.
In the initial stages of the excitation of the ½ Hz sensory resonance, a downward drift is detected in the ptosis frequency, defined as the stimulation frequency for which maximum ptosis is obtained. This drift is believed to be caused by changes in the chemical milieu of the resonating neural circuits. It is thought that the resonance causes perturbations of chemical concentrations somewhere in the brain, and that these perturbations spread by diffusion to nearby resonating circuits. This effect, called “chemical detuning”, can be so strong that ptosis is lost altogether when the stimulation frequency is kept constant in the initial stages of the excitation. Since the stimulation then falls somewhat out of tune, the resonance decreases in amplitude and chemical detuning eventually diminishes. This causes the ptosis frequency to shift back up, so that the stimulation is more in tune and the ptosis can develop again. As a result, for fixed stimulation frequencies in a certain range, the ptosis slowly cycles with a frequency of several minutes. The matter is discussed in the '302 patent.
The stimulation frequencies at which specific physiological effects occur depend somewhat on the autonomic nervous system state, and probably on the endocrine state as well.
Weak magnetic fields that are pulsed with a sensory resonance frequency can induce the same physiological effects as pulsed electric fields. Unlike the latter however, the magnetic fields penetrate biological tissue with nearly undiminished strength. Eddy currents in the tissue drive electric charges to the skin, where the charge distributions are subject to thermal smearing in much the same way as in electric field stimulation, so that the same physiological effects develop. Details are discussed in the '054 patent.
SUMMARY
Computer monotors and TV monitors can be made to emit weak low-frequency electromagnetic fields merely by pulsing the intensity of displayed images. Experiments have shown that the ½ Hz sensory resonance can be excited in this manner in a subject near the monitor. The 2.4 Hz sensory resonance can also be excited in this fashion. Hence, a TV monitor or computer monitor can be used to manipulate the nervous system of nearby people.
The implementations of the invention are adapted to the source of video stream that drives the monitor, be it a computer program, a TV broadcast, a video tape or a digital video disc (DVD).
For a computer monitor, the image pulses can be produced by a suitable computer program. The pulse frequency may be controlled through keyboard input, so that the subject can tune to an individual sensory resonance frequency. The pulse amplitude can be controlled as well in this manner. A program written in Visual Basic(R) is particularly suitable for use on computers that run the Windows 95(R) or Windows 98(R) operating system. The structure of such a program is described. Production of periodic pulses requires an accurate timing procedure. Such a procedure is constructed from the GetTimeCount function available in the Application Program Interface (API) of the Windows operating system, together with an extrapolation procedure that improves the timing accuracy.
Pulse variability can be introduced through software, for the purpose of thwarting habituation of the nervous system to the field stimulation, or when the precise resonance frequency is not known. The variability may be a pseudo-random variation within a narrow interval, or it can take the form of a frequency or amplitude sweep in time. The pulse variability may be under control of the subject.
The program that causes a monitor to display a pulsing image may be run on a remote computer that is connected to the user computer by a link; the latter may partly belong to a network, which may be the Internet.
For a TV monitor, the image pulsing may be inherent in the video stream as it flows from the video source, or else the stream may be modulated such as to overlay the pulsing. In the first case, a live TV broadcast can be arranged to have the feature imbedded simply by slightly pulsing the illumination of the scene that is being broadcast. This method can of course also be used in making movies and recording video tapes and DVDs.
Video tapes can be edited such as to overlay the pulsing by means of modulating hardware. A simple modulator is discussed wherein the luminance signal of composite video is pulsed without affecting the chroma signal. The same effect may be introduced at the consumer end, by modulating the video stream that is produced by the video source. A DVD can be edited through software, by introducing pulse-like variations in the digital RGB signals. Image intensity pulses can be overlaid onto the analog component video output of a DVD player by modulating the luminance signal component. Before entering the TV set, a television signal can be modulated such as to cause pulsing of the image intensity by means of a variable delay line that is connected to a pulse generator.
Certain monitors can emit electromagnetic field pulses that excite a sensory resonance in a nearby subject, through image pulses that are so weak as to be subliminal. This is unfortunate since it opens a way for mischievous application of the invention, whereby people are exposed unknowingly to manipulation of their nervous systems for someone else's purposes. Such application would be unethical and is of course not advocated. It is mentioned here in order to alert the public to the possibility of covert abuse that may occur while being online, or while watching TV, a video, or a DVD.
DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates the electromagnetic field that emanates from a monitor when the video signal is modulated such as to cause pulses in image intensity, and a nearby subject who is exposed to the field.
FIG. 2 shows a circuit for modulation of a composite video signal for the purpose of pulsing the image intensity.
FIG. 3 shows the circuit for a simple pulse generator.
FIG. 4 illustrates how a pulsed electromagnetic field can be generated with a computer monitor.
FIG. 5 shows a pulsed electromagnetic field that is generated by a television set through modulation of the RF signal input to the TV.
FIG. 6 outlines the structure of a computer program for producing a pulsed image.
FIG. 7 shows an extrapolation procedure introduced for improving timing accuracy of the program of FIG. 6.
FIG. 8 illustrates the action of the extrapolation procedure of FIG. 7.
FIG. 9 shows a subject exposed to a pulsed electromagnetic field emanating from a monitor which is responsive to a program running on a remote computer via a link that involves the Internet.
FIG. 10 shows the block diagram of a circuit for frequency wobbling of a TV signal for the purpose of pulsing the intensity of the image displayed on a TV monitor.
FIG. 11 depicts schematically a recording medium in the form of a video tape with recorded data, and the attribute of the signal that causes the intensity of the displayed image to be pulsed.
FIG. 12 illustrates how image pulsing can be embedded in a video signal by pulsing the illumination of the scene that is being recorded.
FIG. 13 shows a routine that introduces pulse variability into the computer program of FIG. 6.
FIG. 14 shows schematically how a CRT emits an electromagnetic field when the displayed image is pulsed.
FIG. 15 shows how the intensity of the image displayed on a monitor can be pulsed through the brightness control terminal of the monitor.
FIG. 16 illustrates the action of the polarization disc that serves as a model for grounded conductors in the back of a CRT screen.
FIG. 17 shows the circuit for overlaying image intensity pulses on a DVD output.
FIG. 18 shows measured data for pulsed electric fields emitted by two different CRT type monitors, and a comparison with theory.
DETAILED DESCRIPTION
Computer monitors and TV monitors emit electromagnetic fields. Part of the emission occurs at the low frequencies at which displayed images are changing. For instance, a rythmic pulsing of the intensity of an image causes electromagnetic field emission at the pulse frequency, with a strength proportional to the pulse amplitude. The field is briefly referred to as “screen emission”. In discussing this effect, any part or all what is displayed on the monitor screen is called an image. A monitor of the cathode ray tube (CRT) type has three electron beams, one for each of the basic colors red, green, and blue. The intensity of an image is here defined as
I=∫j dA, (1)
where the integral extends over the image, and
j=jr+jg+jb, (2)
jr, jg, and jb being the electric current densities in the red, green, and blue electron beams at the surface area dA of the image on the screen. The current densities are to be taken in the distributed electron beam model, where the discreteness of pixels and the raster motion of the beams are ignored, and the back of the monitor screen is thought to be irradiated by diffuse electron beams. The beam current densities are then functions of the coordinates x and y over the screen. The model is appropriate since we are interested in the electromagnetic field emision caused by image pulsing with the very low frequencies of sensory resonances, whereas the emissions with the much higher horizontal and vertical sweep frequencies are of no concern. For a CRT the intensity of an image is expressed in millamperes.
For a liquid crystal display (LCD), the current densities in the definition of image intensity are to be replaced by driving voltages, multiplied by the aperture ratio of the device. For an LCD, image intensities are thus expressed in volts.
It will be shown that for a CRT or LCD screen emissions are caused by fluctuations in image intensity. In composite video however, intensity as defined above is not a primary signal feature, but luminance Y is. For any pixel one has
Y=0.299R+0.587G+0.114B, (3)
where R, G, and B are the intensities of the pixel respectively in red, green and blue, normalized such as to range from 0 to 1. The definition (3) was provided by the Commission Internationale de l'Eclairage (CIE), in order to account for brightness differences at different colors, as perceived by the human visual system. In composite video the hue of the pixel is determined by the chroma signal or chrominance, which has the components R-Y and B-Y It follows that pulsing pixel luminance while keeping the hue fixed is equivalent to pulsing the pixel intensity, up to an amplitude factor. This fact will be relied upon when modulating a video stream such as to overlay image intensity pulses.
It turns out that the screen emission has a multipole expansion wherein both monopole and dipole contributions are proportional to the rate of change of the intensity I of (1). The higher order multipole contributions are proportional to the rate of change of moments of the current density j over the image, but since these contributions fall off rapidly with distance, they are not of practical importance in the present context. Pulsing the intensity of an image may involve different pulse amplitudes, frequencies, or phases for different parts of the image. Any or all of these features may be under subject control.
The question arises whether the screen emission can be strong enough to excite sensory resonances in people located at normal viewing distances from the monitor. This turns out to be the case, as shown by sensory resonance experiments and independently by measuring the strength of the emitted electric field pulses and comparing the results with the effective intensity window as explored in earlier work.
One-half Hertz sensory resonance experiments have been conducted with the subject positioned at least at normal viewing distance from a 15″ computer monitor that was driven by a computer program written in Visual Basic(R), version 6.0 (VB6). The program produces a pulsed image with uniform luminance and hue over the full screen, except for a few small control buttons and text boxes. In VB6, screen pixel colors are determined by integers R, G, and B, that range from 0 to 255, and set the contributions to the pixel color made by the basic colors red, green, and blue. For a CRT-type monitor, the pixel intensities for the primary colors may depend on the RGB values in a nonlinear manner that will be discussed. In the VB6 program the RGB values are modulated by small pulses ΔR, ΔG, ΔB, with a frequency that can be chosen by the subject or is swept in a predetermined manner. In the sensory resonance experiments mentioned above, the ratios ΔR/R, ΔG/G, and ΔB/B were always smaller than 0.02, so that the image pulses are quite weak. For certain frequencies near ½ Hz, the subject experienced physiological effects that are known to accompany the excitation of the ½ Hz sensory resonance as mentioned in the Background Section. Moreover, the measured field pulse amplitudes fall within the effective intensity window for the ½ Hz resonance, as explored in earlier experiments and discussed in the '874, '744, '922, and '304 patents. Other experiments have shown that the 2.4 Hz sensory resonance can be exited as well by screen emissions from monitors that display pulsed images.
These results confirm that, indeed, the nervous system of a subject can be manipulated through electromagnetic field pulses emitted by a nearby CRT or LCD monitor which displays images with pulsed intensity.
The various implementations of the invention are adapted to the different sources of video stream, such as video tape, DVD, a computer program, or a TV broadcast through free space or cable. In all of these implementations, the subject is exposed to the pulsed electromagnetic field that is generated by the monitor as the result of image intensity pulsing. Certain cutaneous nerves of the subject exhibit spontaneous spiking in patterns which, although rather random, contain sensory information at least in the form of average frequency. Some of these nerves have receptors that respond to the field stimulation by changing their average spiking frequency, so that the spiking patterns of these nerves acquire a frequency modulation, which is conveyed to the brain. The modulation can be particularly effective if it has a frequency at or near a sensory resonance frequency. Such frequencies are expected to lie in the range from 0.1 to 15 Hz.
An embodiment of the invention adapted to a VCR is shown in FIG. 1, where a subject 4 is exposed to a pulsed electric field 3 and a pulsed magnetic field 39 that are emitted by a monitor 2, labeled “MON”, as the result of pulsing the intensity of the displayed image. The image is here generated by a video casette recorder 1, labeled “VCR”, and the pulsing of the image intensity is obtained by modulating the composite video signal from the VCR output. This is done by a video modulator 5, labeled “VM”, which responds to the signal from the pulse generator 6, labeled “GEN”. The frequency and amplitude of the image pulses can be adjusted with the frequency control 7 and amplitude control 8. Frequency and amplitude adjustments can be made by the subject.
The circuit of the video modulator 5 of FIG. 1 is shown in FIG. 2, where the video amplifiers 11 and 12 process the composite video signal that enters at the input terminal 13. The level of the video signal is modulated slowly by injecting a small bias current at the inverting input 17 of the first amplifier 11. This current is caused by voltage pulses supplied at the modulation input 16, and can be adjusted through the potentiometer 15. Since the noninverting input of the amplifier is grounded, the inverting input 17 is kept essentially at ground potential, so that the bias current is is not influenced by the video signal. The inversion of the signal by the first amplifier 11 is undone by the second amplifier 12. The gains of the amplifiers are chosen such as to give a unity overall gain. A slowly varying current injected at the inverting input 17 causes a slow shift in the “pseudo-dc” level of the composite video signal, here defined as the short-term average of the signal. Since the pseudo-dc level of the chroma signal section determines the luminance, the latter is modulated by the injected current pulses. The chroma signal is not affected by the slow modulation of the pseudodc level, since that signal is determined by the amplitude and phase with respect to the color carrier which is locked to the color burst. The effect on the sync pulses and color bursts is of no consequence either if the injected current pulses are very small, as they are in practice. The modulated composite video signal, available at the output 14 in FIG. 2, will thus exhibit a modulated luminance, whereas the chroma signal is unchanged. In the light of the foregoing discussion about luminance and intensity, it follows that the modulator of FIG. 2 causes a pulsing of the image intensity I. It remains to give an example how the pulse signal at the modulation input 16 may be obtained. FIG. 3 shows a pulse generator that is suitable for this purpose, wherein the RC timer 21 (Intersil ICM7555) is hooked up for astable operation and produces a square wave voltage with a frequency that is determined by capacitor 22 and potentiometer 23. The timer 21 is powered by a battery 26, controlled by the switch 27. The square wave voltage at output 25 drives the LED 24, which may be used for monitoring of the pulse frequency, and also serves as power indicator. The pulse output may be rounded in ways that are well known in the art. In the setup of FIG. 1, the output of VCR 1 is connected to the video input 13 of FIG. 2, and the video output 14 is connected to the monitor 2 of FIG. 1.
In the preferred embodiment of the invention, the image intensity pulsing is caused by a computer program. As shown in FIG. 4, monitor 2, labeled “MON”, is connected to computer 31 labeled “COMPUTER”, which runs a program that produces an image on the monitor and causes the image intensity to be pulsed. The subject 4 can provide input to the computer through the keyboard 32 that is connected to the computer by the connection 33. This input may involve adjustments of the frequency or the amplitude or the variability of the image intensity pulses. In particular, the pulse frequency can be set to a sensory resonance frequency of the subject for the purpose of exciting the resonance.
The structure of a computer program for pulsing image intensity is shown in FIG. 6. The program may be written in Visual Basic(R) version 6.0 (VB6), which involves the graphics interface familiar from the Windows(R) operating system. The images appear as forms equipped with user controls such as command buttons and scroll bars, together with data displays such as text boxes. A compiled VB6 program is an executable file. When activated, the program declares variables and functions to be called from a dynamic link library (DLL) that is attached to the operating system; an initial form load is performed as well. The latter comprises setting the screen color as specified by integers R, G, and B in the range 0 to 255, as mentioned above. In FIG. 6, the initial setting of the screen color is labeled as 50. Another action of the form load routine is the computation 51 of the sine function at eight equally spaced points, I=0 to 7, around the unit circle. These values are needed when modulating the RGB numbers. Unfortunately, the sine function is distorted by the rounding to integer RGB values that occurs in the VB6 program. The image is chosen to fill as much of the screen area as possible, and it has spatially uniform luminance and hue.
The form appearing on the monitor displays a command button for starting and stopping the image pulsing, together with scroll bars 52 and 53 respectively for adjustment of the pulse frequency F and the pulse amplitude A. These pulses could be initiated by a system timer which is activated upon the elapse of a preset time interval. However, timers in VB6 are too inaccurate for the purpose of providing the eight RGB adjustment points in each pulse cycle. An improvement can be obtained by using the GetTickCount function that is available in the Application Program Interface (API) of Windows 95(R) and Windows 98(R). The GetTickCount function returns the system time that has elapsed since starting Windows, expressed in milliseconds. User activation of the start button 54 provides a tick count TN through request 55 and sets the timer interval to TT miliseconds, in step 56. TT was previously calculated in the frequency routine that is activated by changing the frequency, denoted as step 52.
Since VB6 is an event-driven program, the flow chart for the program falls into disjoint pieces. Upon setting the timer interval to TT in step 56, the timer runs in the background while the program may execute subroutines such as adjustment of pulse frequency or amplitude. Upon elapse of the timer interval TT, the timer subroutine 57 starts execution with request 58 for a tick count, and in 59 an upgrade is computed of the time TN for the next point at which the RGB values are to be adjusted. In step 59 the timer is turned off, to be reactivated later in step 67. Step 59 also resets the parameter CR which plays a role in the extrapolation procedure 61 and the condition 60. For ease of understanding at this point, it is best to pretend that the action of 61 is simply to get a tick count, and to consider the loop controled by condition 60 while keeping CR equal to zero. The loop would terminate when the tick count M reaches or exceeds the time TN for the next phase point, at which time the program should adjust the image intensity through steps 63-65. For now step 62 is to be ignored also, since it has to do with the actual extrapolation procedure 61. The increments to the screen colors R1, G1, and B1 at the new phase point are computed according to the sine function, applied with the amplitude A that was set by the user in step 53. The number I that labels the phase point is incremented by unity in step 65, but if this results in I=8 the value is reset to zero in 66. Finally, the timer is reactivated in step 67, initiating a new ⅛-cycle step in the periodic progression of RGB adjustments.
A program written in this way would exhibit a large jitter in the times at which the RGB values are changed. This is due to the lumpiness in the tick counts returned by the GetTickCount function. The lumpiness may be studied separately by running a simple loop with C=GetTickCount, followed by writing the result C to a file. Inspection shows that C has jumped every 14 or 15 milliseconds, between long stretches of constant values. Since for a ½ Hz image intensity modulation the ⅛-cycle phase points are 250 ms apart, the lumpiness of 14 or 15 ms in the tick count would cause considerable inaccuracy. The full extrapolation procedure 61 is introduced in order to diminish the jitter to acceptable levels. The procedure works by refining the heavy-line staircase function shown in FIG. 8, using the slope RR of a recent staircase step to accurately determine the loop count 89 at which the loop controled by 60 needs to be exited. Details of the extrapolation procedure are shown in FIG. 7 and illustrated in FIG. 8. The procedure starts at 70 with both flags off, and CR=0, because of the assignment in 59 or 62 in FIG. 6. A tick count M is obtained at 71, and the remaining time MR to the next phase point is computed in 72. Conditions 77 and 73 are not satisfied and therefore passed vertically in the flow chart, so that only the delay block 74 and the assignments 75 are executed. Condition 60 of FIG. 6 is checked and found to be satisfied, so that the extrapolation procedure is reentered. The process is repeated until the condition 73 is met when the remaining time MR jumps down through the 15 ms level, shown in FIG. 8 as the transition 83. The condition 73 then directs the logic flow to the assignments 76, in which the number DM labeled by 83 is computed, and FLG1 is set. The computation of DM is required for finding the slope RR of the straight-line element 85. One also needs the “Final LM” 86, which is the number of loops traversed from step 83 to the next downward step 84, here shown to cross the MR=0 axis. The final LM is determined after repeatedly incrementing LM through the side loop entered from the FLG1=1 condition 77, which is now satisfied since FLG1 was set in step 76. At the transition 84 the condition 78 is met, so that the assignments 79 are executed. This includes computation of the slope RR of the line element 85, setting FLG2, and resetting FLG1. From here on, the extrapolation procedure increments CR in steps of RR while skipping tick counts until condition 60 of FIG. 6 is violated, the loop is exited, and the RGB values are adjusted.
A delay block 74 is used in order to stretch the time required for traversing the extrapolation procedure. The block can be any computation intensive subroutine such as repeated calculations of tangent and arc tangent functions.
As shown in step 56 of FIG. 6, the timer interval TT is set to 4/10 of the time TA from one RGB adjustment point to the next. Since the timer runs in the background, this arrangement provides an opportunity for execution of other processes such as user adjustment of frequency or amplitude of the pulses.
The adjustment of the frequency and other pulse parameters of the image intensity modulation can be made internally, i.e., within the running program. Such internal control is to be distinguished from the external control provided, for instance, in screen savers. In the latter, the frequency of animation can be modified by the user, but only after having exited the screen saver program. Specifically, in Windows 95(R) or Windows 98(R), to change the animation frequency requires stopping the screen saver execution by moving the mouse, whereafter the frequency may be adjusted through the control panel. The requirement that the control be internal sets the present program apart from so-called banners as well.
The program may be run on a remote computer that is linked to the user computer, as illustrated in FIG. 9. Although the monitor 2, labeled “MON”, is connected to the computer 31′, labeled “COMPUTER”, the program that pulses the images on the monitor 2 runs on the remoter computer 90, labeled “REMOTE COMPUTER”, which is connected to computer 31′ through a link 91 which may in part belong to a network. The network may comprise the Internet 92.
The monitor of a television set emits an electromagnetic field in much the same way as a computer monitor. Hence, a TV may be used to produce screen emissions for the purpose of nervous system manipulation. FIG. 5 shows such an arrangement, where the pulsing of the image intensity is achieved by inducing a small slowly pulsing shift in the frequency of the RF signal that enters from the antenna. This process is here called “frequency wobbling” of the RF signal. In FM TV, a slight slow frequency wobble of the RF signal produces a pseudo-dc signal level fluctuation in the composite video signal, which in turn causes a slight intensity fluctuation of the image displayed on the monitor in the same manner as discussed above for the modulator of FIG. 2. The frequency wobbling is induced by the wobbler 44 of FIG. 5 labeled “RFM”, which is placed in the antenna line 43. The wobbler is driven by the pulse generator 6, labeled “GEN”. The subject can adjust the frequency and the amplitude of the wobble through the tuning control 7 and the amplitude control 41. FIG. 10 shows a block diagram of the frequency wobbler circuit that employs a variable delay line 94, labelled “VDL”. The delay is determined by the signal from pulse generator 6, labelled “GEN”. The frequency of the pulses can be adjusted with the tuning control 7. The amplitude of the pulses is determined by the unit 98, labelled “MD”, and can be adjusted with the amplitude control 41. Optionally, the input to the delay line may be routed through a preprocessor 93, labelled “PRP”, which may comprise a selective RF amplifier and down converter; a complimentary up conversion should then be performed on the delay line output by a postprocessor 95, labelled “POP”. The output 97 is to be connected to the antenna terminal of the TV set.
The action of the variable delay line 94 may be understood as follows. Let periodic pulses with period L be presented at the input. For a fixed delay the pulses would emerge at the output with the same period L. Actually, the time delay T is varied slowly, so that it increases approximately by LdT/dt between the emergence of consecutive pulses at the device output. The pulse period is thus increased approximately by
ΔL=LdT/dt. (4)
In terms of the frequency ∫, Eq. (4) implies approximately
Δ∫/∫=−dT/dt. (5)
For sinusoidal delay T(t) with amplitude b and frequency g, one has
Δ∫/∫=−2πgb cos (2πgt), (6)
which shows the frequency wobbling. The approximation is good for gb<<1, which is satisfied in practice. The relative frequency shift amplitude 2πgb that is required for effective image intensity pulses is very small compared to unity. For a pulse frequency g of the order of 1 Hz, the delay may have to be of the order of a millisecond. To accomodate such long delay values, the delay line may have to be implemented as a digital device. To do so is well within the present art. In that case it is natural to also choose digital implementations for the pulse generator 6 and the pulse amplitude controller 98, either as hardware or as software.
Pulse variability may be introduced for alleviating the need for precise tuning to a resonance frequency. This may be important when sensory resonance frequencies are not precisely known, because of the variation among individuals, or in order to cope with the frequency drift that results from chemical detuning that is discussed in the '874 patent. A field with suitably chosen pulse variability can then be more effective than a fixed frequency field that is out of tune. One may also control tremors and seizures, by interfering with the pathological oscillatory activity of neural circuits that occurs in these disorders. Electromagnetic fields with a pulse variability that results in a narrow spectrum of frequencies around the frequency of the pathological oscillatory activity may then evoke nerve signals that cause phase shifts which diminish or quench the oscillatory activity.
Pulse variability can be introduced as hardware in the manner described in the '304 patent. The variability may also be introduced in the computer program of FIG. 6, by setting FLG3 in step 68, and choosing the amplitude B of the frequency fluctuation. In the variability routine 46, shown in some detail in FIG. 13, FLG3 is detected in step 47, whereupon in steps 48 and 49 the pulse frequency F is modified pseudo randomly by a term proportional to B, every 4th cycle. Optionally, the amplitude of the image intensity pulsing may be modified as well, in similar fashion. Alternatively, the frequency and amplitude may be swept through an adjustable ramp, or according to any suitable schedule, in a manner known to those skilled in the art. The pulse variability may be applied to subliminal image intensity pulses.
When an image is displayed by a TV monitor in response to a TV broadcast, intensity pulses of the image may simply be imbedded in the program material. If the source of video signal is a recording medium, the means for pulsing the image intensity may comprise an attribute of recorded data. The pulsing may be subliminal. For the case of a video signal from a VCR, the pertinent data attribute is illustrated in FIG. 11, which shows a video signal record on part of a video tape 28. Depicted schematically are segments of the video signal in intervals belonging to lines in three image frames at different places along the tape. In each segment, the chroma signal 9 is shown, with its short-term average level 29 represented as a dashed line. The short-term average signal level, also called the pseudo-dc level, represents the luminance of the image pixels. Over each segment, the level is here constant because the image is for simplicity chosen as having a uniform luminance over the screen. However, the level is seen to vary from frame to frame, illustrating a luminance that pulses slowly over time. This is shown in the lower portion of the drawing, wherein the IRE level of the short-term chroma signal average is plotted versus time. The graph further shows a gradual decrease of pulse amplitude in time, illustrating that luminance pulse amplitude variations may also be an attribute of the recorded data on the video tape. As discussed, pulsing the luminance for fixed chrominance results in pulsing of the image intensity.
Data stream attributes that represent image intensity pulses on video tape or in TV signals may be created when producing a video rendition or making a moving picture of a scene, simply by pulsing the illumination of the scene. This is illustrated in FIG. 12, which shows a scene 19 that is recorded with a video camera 18, labelled “VR”. The scene is illuminated with a lamp 20, labelled “LAMP”, energized by an electric current through a cable 36. The current is modulated in pulsing fashion by a modulator 30, labeled “MOD”, which is driven by a pulse generator 6, labelled “GENERATOR”, that produces voltage pulses 35. Again, pulsing the luminance but not the chrominance amounts to pulsing the image intensity.
The brightness of monitors can usually be adjusted by a control, which may be addressable through a brightness adjustment terminal. If the control is of the analog type, the displayed image intensity may be pulsed as shown in FIG. 15, simply by a pulse generator 6, labeled “GEN”, that is connected to the brigthness adjustment terminal 88 of the monitor 2, labeled “MON”. Equivalent action can be provided for digital brightness controls, in ways that are well known in the art.
The analog component video signal from a DVD player may be modulated such as to overlay image intensity pulses in the manner illustrated in FIG. 17. Shown are a DVD player 102, labeled “DVD”, with analog component video output comprised of the luminance Y and chrominance C. The overlay is accomplished simply by shifting the luminance with a voltage pulse from generator 6, labeled “GENERATOR”. The generator output is applied to modulator 106, labeled “SHIFTER”. Since the luminance Y is pulsed without changing the chrominance C, the image intensity is pulsed. The frequency and amplitude of the image intensity pulses can be adjusted respectively with the tuner 7 and amplitude control 107. The modulator 105 has the same structure as the modulator of FIG. 2, and the pulse amplitude control 107 operates the potentiometer 15 of FIG. 2. The same procedure can be followed for editing a DVD such as to overlay image intensity pulses, by processing the modulated luminance signal through an analog-to-digital converter, and recording the resulting digital stream onto a DVD, after appropriate compression. Alternatively, the digital luminance data can be edited by electronic reading of the signal, decompression, altering the digital data by software, and recording the resulting digital signal after proper compression, all in a manner that is well known in the art.
The mechanism whereby a CRT-type monitor emits a pulsed electromagnetic field when pulsing the intensity of an image is illustrated in FIG. 14. The image is produced by an electron beam 10 which impinges upon the backside 88 of the screen, where the collisions excite phosphors that subsequently emit light. In the process, the electron beam deposits electrons 18 on the screen, and these electrons contribute to an electric field 3 labelled “E”. The electrons flow along the conductive backside 88 of the screen to the terminal 99 which is hooked up to the high-voltage supply 40, labelled “HV”. The circuit is completed by the ground connection of the supply, the video amplifier 87, labeled “VA”, and its connection to the cathodes of the CRT. The electron beams of the three electron guns are collectively shown as 10, and together the beams carry a current J. The electric current J flowing through the described circuit induces a magnetic field 39, labeled “B”. Actually, there are a multitude of circuits along which the electron beam current is returned to the CRT cathodes, since on a macroscopic scale the conductive back surface 88 of the screen provides a continuum of paths from the beam impact point to the high-voltage terminal 99. The magnetic fields induced by the currents along these paths partially cancel each other, and the resulting field depends on the location of the pixel that is addressed. Since the beams sweep over the screen through a raster of horizontal lines, the spectrum of the induced magnetic field contains strong peaks at the horizontal and vertical frequencies. However, the interest here is not in fields at those frequencies, but rather in emissions that result from an image pulsing with the very low frequencies appropriate to sensory resonances. For this purpose a diffuse electron current model suffices, in which the pixel discreteness and the raster motion of the electron beams are ignored, so that the beam current becomes diffuse and fills the cone subtended by the displayed image. The resulting low-frequency magnetic field depends on the temporal changes in the intensity distribution over the displayed image. Order-of-magnitude estimates show that the low-frequency magnetic field, although quite small, may be sufficient for the excitation of sensory resonances in subjects located at a normal viewing distance from the monitor.
The monitor also emits a low-frequency electric field at the image pulsing frequency. This field is due in part to the electrons 18 that are deposited on the screen by the electron beams 10. In the diffuse electron beam model, screen conditions are considered functions of the time t and of the Cartesian coordinates x and y over a flat CRT screen.
The screen electrons 18 that are dumped onto the back of the screen by the sum j(x,y,t) of the diffuse current distributions in the red, green, and blue electron beams cause a potential distribution V(x,y,t) which is influenced by the surface conductivity σ on the back of the screen and by capacitances. In the simple model where the screen has a capacitance distribution c(x,y) to ground and mutual capacitances between parts of the screen at different potentials are neglected, a potential distribution V(x,y,t) over the screen implies a surface charge density distribution
q=Vc(x,y), (7)
and gives rise to a current density vector along the screen,
j s=−σgrads V, (8)
where grads is the gradient along the screen surface. Conservation of electric charge implies
j=c{dot over (V)}−div s (σgrad s V), (9)
where the dot over the voltage denotes the time derivative, and divs is the divergence in the screen surface. The partial differential equation (9) requires a boundary condition for the solution V(x,y,t) to be unique. Such a condition is provided by setting the potential at the rim of the screen equal to the fixed anode voltage. This is a good approximation, since the resistance Rr between the screen rim and the anode terminal is chosen small in CRT design, in order to keep the voltage loss JRr to a minimum, and also to limit low-frequency emissions.
Something useful can be learned from special cases with simple solutions. As such, consider a circular CRT screen of radius R with uniform conductivity, showered in the back by a diffuse electron beam with a spatially uniform beam current density that is a constant plus a sinusoidal part with frequency ∫. Since the problem is linear, the voltage V due to the sinusoidal part of the beam current can be considered separately, with the boundary condition that V vanish at the rim of the circular screen. Eq. (9) then simplifies to
V″+V″/r−i2π∫cn V=−Jη/A, r≦R, (10)
where r is a radial coordinate along the screen with its derivative denoted by a prime, η=1/σ is the screen resistivity, A the screen area, J the sinusoidal part of the total beam current, and i=(−1), the imaginary unit. Our interest is in very low pulse frequencies ∫ that are suitable for excitation of sensory resonances. For those frequencies and for practical ranges for c and η, the dimensionless number 2π∫cAη is very much smaller than unity, so that it can be neglected in Eq. (10). The boundary value problem then has the simple solution V ( r ) = J η 4 π ( 1 - ( r / R ) 2 ) . ( 11 )
Figure US06506148-20030114-M00001
In deriving (11) we neglected the mutual capacitance between parts of the screen that are at different potentials. The resulting error in (10) is negligible for the same reason that the i2π∫cAη term in (10) can be neglected.
The potential distribution V(r) of (11) along the screen is of course accompanied by electric charges. The field lines emanating from these charges run mainly to conductors behind the screen that belong to the CRT structure and that are either grounded or connected to circuitry with a low impedance path to ground. In either case the mentioned conductors must be considered grounded in the analysis of charges and fields that result from the pulsed component J of the total electron beam current. The described electric field lines end up in electric charges that may be called polarization charges since they are the result of the polarization of the conductors and circuitry by the screen emission. To estimate the pulsed electric field, a model is chosen where the mentioned conductors are represented together as a grounded perfectly conductive disc of radius R, positioned a short distance δ behind the screen, as depicted in FIG. 16. Since the grounded conductive disc carries polarization charges, it is called the polarization disc. FIG. 16 shows the circular CRT screen 88 and the polarization disc 101, briefly called “plates”. For small distances δ, the capacitance density between the plates of opposite polarity is nearly equal to ε/δ, where ε is the permittivity of free space. The charge distributions on the screen and polarization disc are respectively εV(r)/δ+q0 and −εV(r)/δ+q0, where the εV(r)/δ terms denote opposing charge densities at the end of the dense field lines that run between the two plates. That the part q0 is needed as well will become clear in the sequel.
The charge distributions εV(r)/δ+q0 and −εV(r)/δ+q0 on the two plates have a dipole moment with the density D ( r ) = εV ( r ) = J ηε 4 π ( 1 - ( r / R ) 2 ) , ( 12 )
Figure US06506148-20030114-M00002
directed perpendicular to the screen. Note that the plate separation δ has dropped out. This means that the precise location of the polarization charges is not critical in the present model, and further that δ may be taken as small as desired. Taking δ to zero, one thus arrives at the mathematical model of pulsed dipoles distributed over the circular CRT screen. The field due to the charge distribution q0 will be calculated later.
The electric field induced by the distributed dipoles (12) can be calculated easily for points on the centerline of the screen, with the result E ( z ) = V ( 0 ) R { 2 ρ / R - R / ρ - 2 z / R } , ( 13 )
Figure US06506148-20030114-M00003
where V(0) is the pulse voltage (11) at the screen center, ρ the distance to the rim of the screen, and z the distance to the center of the screen. Note that V(0) pulses harmonically with frequency ∫, because in (11) the sinusoidal part J of the beam current varies in this manner.
The electric field (13) due to the dipole distribution causes a potential distribution V(r)/2 over the screen and a potential distribution of −V(r)/2 over the polarization disc, where V(r) is nonuniform as given by (11). But since the polarization disc is a perfect conductor it cannot support voltage gradients, and therefore cannot have the potential distribution −V(r)/2. Instead, the polarization disc is at ground potential. This is where the charge distribution q0(r) comes in; it must be such as to induce a potential distribution V(r)/2 over the polarization disc. Since the distance between polarization disc and screen vanishes in the mathematical model, the potential distribution V(r)/2 is induced over the screen as well. The total potential over the monitor screen thus becomes V(r) of (11), while the total potential distribution over the polarization disc becomes uniformly zero. Both these potential distributions are as physically required. The electric charges q0 are moved into position by polarization and are partly drawn from the earth through the ground connection of the CRT.
In our model the charge distribution q0 is located at the same place as the dipole distribution, viz., on the plane z=0 within the circle with radius R. At points on the center line of the screen, the electric field due to the monopole distribution q0 is calculated in the following manner. As discussed, the monopoles must be such that they cause a potential φ0 that is equal to V(r)/2 over the disc with radius R centered in the plane z=0. Although the charge distribution q0(r) is uniquely defined by this condition, it cannot be calculated easily in a straightforward manner. The difficulty is circumvented by using an intermediate result derived from Excercise 2 on page 191 of Kellogg (1953), where the charge distribution over a thin disc with uniform potential is given. By using this result one readily finds the potential φ*(z) on the axis of this disc as φ * ( z ) = 2 π V * β ( R 1 ) , ( 14 )
Figure US06506148-20030114-M00004
where β(R1) is the angle subtended by the disc radius R1, as viewed from the point z on the disc axis, and V* is the disc potential. The result is used here in an attempt to construct the potential φ0(z) for a disc with the nonuniform potential V(r)/2, by the ansatz of writing the field as due to a linear combination of abstract discs with various radii R1 and potentials, all centered in the plane z=0. In the ansatz the potential on the symmetry axis is written φ 0 ( z ) = α β ( R ) + b ∫ 0 R β ( R 1 ) W , ( 15 )
Figure US06506148-20030114-M00005
where W is chosen as the function 1−R1 2/R2, and the constants a and b are to be determined such that the potential over the plane z=0 is V(r)/2 for radii r ranging from 0 to R, with V(r) given by (11). Carrying out the integration in (15) gives
φ0(z)=αβ(R)−b{(1+z 2 /R 2)β(R)−|z|/R}. (16)
In order to find the potential over the disc r<R in the plane z=0, the function φ0(z) is expanded in powers of z/R for 0<z<R, whereafter the powers zn are replaced by rnPn(cosθ), where the Pn are Legendre polynomials, and (r,θ) are symmetric spherical coordinates centered at the screen center. This procedure amounts to a continuation of the potential from the z-axis into the half ball r0, in such a manner that the Laplace equation is satisfied. The method is discussed by Morse and Feshbach (1953). The “Laplace continuation” allows calculation of the potential φ0 along the surface of the disc r0, the parts (13) and (19) contribute about equally to the electric field over a practical range of distances z. When going behind the monitor where z is negative the monopole field flips sign so that the two parts nearly cancel each other, and the resulting field is very small. Therefore, in the back of the CRT, errors due to imperfections in the theory are relatively large. Moreover our model, which pretends that the polarization charges are all located on the polarization disc, fails to account for the electric field flux that escapes from the outer regions of the back of the screen to the earth or whatever conductors happen to be present in the vincinity of the CRT. This flaw has relatively more serious consequences in the back than in front of the monitor.
Screen emissions in front of a CRT can be cut dramatically by using a grounded conductive transparent shield that is placed over the screen or applied as a coating. Along the lines of our model, the shield amounts to a polarization disc in front of the screen, so that the latter is now sandwiched between to grounded discs. The screen has the pulsed potential distribution V(r) of (11), but no electric flux can escape. The model may be modified by choosing the polarization disc in the back somewhat smaller than the screen disc, by a fraction that serves as a free parameter. The fraction may then be determined from a fit to measured fields, by minimizing the relative standard deviation between experiment and theory.
In each of the electron beams of a CRT, the beam current is a nonlinear function of the driving voltage, i.e., the voltage between cathode and control grid. Since this function is needed in the normalization procedure, it was measured for the 15″ computer monitor that has been used in the ½ Hz sensory resonance experiments and the electric field measurements. Although the beam current density j can be determined, it is easier to measure the luminance, by reading a light meter that is brought right up to the monitor screen. With the RGB values in the VB6 program taken as the same integer K, the luminance of a uniform image is proportional to the image intensity I. The luminance of a uniform image was measured for various values of K. The results were fitted with
I=c 1 K γ, (20)
where c1 is a constant. The best fit, with 6.18% relative standard deviation, was obtained for γ=2.32.
Screen emissions also occur for liquid crystal displays (LCD). The pulsed electric fields may have considerable amplitude for LCDs that have their driving electrodes on opposite sides of the liquid crystal cell, for passive matrix as well as for active matrix design, such as thin film technology (TFT). For arrangements with in-plane switching (IPS) however, the driving electrodes are positioned in a single plane, so that the screen emission is very small. For arrangements other than IPS, the electric field is closely approximated by the frin
The aerial application of yellow straw continues to mitigate soil and ash runoff from the mountainous terrain leading to Seaman Reservoir, drinking water resource for the City of Greeley, on Friday, July 20, 2012, near Fort Collins, Colo. Red areas are burnt trees with pine needles that will fall tho the ground and form a mulch. Green areas are the remaining healthy trees that provide shade and protection to promote the growth of ground cover plants and shrub. Because of steep terrain, helicopters must be used to quickly deliver 1,800 tons of straw to Forest Service lands, and private and other lands that receive a seed mix and straw to promote ground cover plant growth on ash-covered lands. In total, 1,800 tons of straw will be applied during the 14-day operation. One quarter of the cost was paid by the City of Greeley and the U.S. Department of Agriculture funded the remainder. The Hewlett Gulch Fire was started by a camper’s alcohol stove, on May 14, at the saddle of a picturesque mountain ridge along the Hewlett Gulch Trail of Poudre Canyon, in the Roosevelt National Forest, 60 miles north of Denver. At it’s peak, more than 400 firefighters were battling fires being pushed by 50 mph winds that helped blacken over 12-square-miles of dry ground cover, brush and trees. Many of the trees were already dead and tinder dry from beetle-kill. The water in the reservoir remains clean and clear, while downstream water flow has gone from famous Colorado clear water to nearly black flows of water heavily laden with ash, silt, and burnt debris that recent thunderstorms have already washed down from the mountainsides. USDA Photo by Lance Cheung.
This graphic shows how green hydrogen is made and its applications. On left are three types of renewable energy — hydroelectric, solar and wind — used in the electrolysis process. On right are three applications: chemical industry, transportation and aerospace. In center, we see the process of separating the water molecule into hydrogen and oxygen.
Green hydrogen is produced using energy from renewable sources — such as hydroelectric, solar or wind power. Through a process known as electrolysis, this clean electricity separates water into its two constituent elements: oxygen and hydrogen. The hydrogen is then stored and transported. It can be used directly in industrial processes; be combined with other elements to create synthetic fuels; or be mixed with oxygen to generate electricity again, as is the case with hydrogen fuel-cell cars.
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The rise of green hydrogen in Latin America
In anticipation of future demand, several projects are underway in the region to produce this clean energy source
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América Latina abre la puerta al hidrógeno verde
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Hydrogen Production and Its Applications to Mobility, Annual Review of Chemical and Biomolecular Engineering
The transportation sector is a major contributor to carbon dioxide emissions. Although there are major challenges, green hydrogen is an attractive alternative to achieve a complete transformation.
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...Or how to spend £8.5M of other people's money.
Its finished! woot! all submitted to the council and thank god that is all over now. Just have to build the thing now.
According to the definition of the app by different authors with references as they were able to figure out the definition of the app in a different perspective.
Definition of App.
The app is a short word for an Application.
It's simply a software designed to work with mobile phones which are generated in computers for smartphones, Android, iPhone, iOS, desktop.
And as well as others wearable smart wristwatch that works with the app as we reckoned with the smart wristwatches of Pebble when is connected to Bluetooth with the app.
Who then is app creator?
As we briefly tell a short story about the app creator who initiated an AppSheet into Creative Arts Solution Foundation.
Since 2018, just to mention someone significant who has successfully come up with an application from AppSheet created by app creator for Creative Arts Solution Foundation on the 3rd - 14th of November 2018 by Olusola David, Ayibiowu (App creator)
This app is specially created by the app creator, Olusola David, Ayibiowu since 3rd & 14th of Nov 2018.
App Name:
Creative Arts Solution Foundation
Target Audience: Everyone, company, organization, foundation, NGOs, stakeholders, social media, visual arts, social platform, politics, donors, marketers, advertisers, Arts Exhibition, businesses as well as sales order online app.
Benefits: Everyone can edit, add, delete, create your own advertisement on this app within 5 Minutes or 45 Minutes.
Access to all features of the AppSheet in order to create an app for business and personal use, association, organization, and for positive influence in our society by creating awareness on particular ongoing programs, political events, products, online marketing to generate a lead. It also serves as a medium for effective and positive traffic sources to blogger, social media, website. And other people in their professional field or task
* Warning:
This app is not for someone who is involved in a fraudulent act or activities.
Anyone found who are involved in fraud is not welcome on this app platform
* Termination of account with immediate effect and without notice if found involved in fraudulence on this particular platform
Add Users.
We add users to this platform by whitelist as you send your email to creativeartssolutionfoundation@gmail.com
Guidelines
Creative Arts Solution Foun... is Ready
Congratulations, 'Creative Arts Solution Foun...' is created and ready to be configured. Install it on your device, continue customizing it in the editor & share it with your team!
Install Creative Arts Solution Foun...
Customize Creative Arts Solution Foun...
How to use the app
Step 1.
* Download Appsheet on your mobile through Google play store for (Android or iOS).
To install the app, open this link on your mobile device: bit.ly/2DEPWca
Use this install link on AppSheet to Run the app in your browser: bit.ly/2zT7Pzs
Sign in to AppSheet with any of this account below:
* Google (Gmail)
* Office365
* Dropbox
* Smartsheet
* Box
* Salesforce
Log out: You can log out when you are done.
Step 2
Click on the top button (left) to view the menu button: Document, Link website, Order Salesperson, Assistant, Feedback
Use the Bottom button for Share, Customer by the organization, organization chart, person, sync, as you click any of this button to view.
Step 3
Edit any of the already empty existing pages with sample photos by removing it and replace by uploading your photo and the organization as you edit and change the name to your name on our app platform and add your logo or photo. Etc.
* Email: Press the email icon to send an email by sharing with email or Gmail based on your mobile setting.
* Phone call: make a phone call with the app phone icon by clicking on it to call.
* Massager (Facebook massager) You can use the app to link Facebook massager. Message-Text and Video chat for free.
* Send SMS (short message service):
Send SMS with Hangout, messages using this app message icon
* Feedback: Use the feedback button to send us your opinion on app or others information
* App gallery: use the app gallery to view more of our existing app like Volunteer form- Creative Arts Solution Foundation.
Step 4
Share: click on the share icon button at the bottom of the customer as you place (upload) order photo of your work to be displayed.
Share the icon button on social media, platform like WhatsApp, Facebook, Twitter, Instagram, LinkedIn, YouTube Etc.
Please note the following as you may want to create a New App as you click on the top menu button (left) to locate the New App and create a new one for yourself of necessary as you want it.
Use free prototype/standard when to deploy your app.
Summary
Upgrade is available based on your app creator structure to determine what plan (Premium like Pro on a monthly fees charge or per annual payment fee to be paid per user or the app owner as they charge or debit your credit card based on the app setting when approved as it passes through test when you run it.
Visit our blog : creativeartssolutionfoundation.blogspot.com/2018/11/app-c...
For more information
On 19 September, 1893, the goal of women’s suffrage was realised and the Bill allowing women to vote in general elections became law. The first opportunity for women to cast their votes came only 10 weeks later on 28 November.
Six weeks later on 27 October Hoani Taipua, a Māori male parliamentarian, forwarded a letter to the Native Minister on behalf of 52 women of Ōtaki. They were eager to vote in the November elections, but their names had not been placed on the electoral roll. Instead the 52 women submitted their names by letter and request that a “roll or form should be printed in the Maori Language and then forwarded to us”.
Among the list of names, near the bottom of the second page, is a Ruiha Mere. Mary Bevan of Ōtaki, a.k.a. Mere Ruiha Hakaraia signed sheet 304 of the 1893 Women’s Suffrage Petition, and it is possible she also signed this letter using her Māori name.
A transcript of the English translation is below:
This is an appeal from us the women of the Native people residing in the West Coast of the Middle Island.
Having heard that your Parliament has passed a law whereby women can vote for the election of a member for the Parliament of the colony we therefore apply to you that is to say to the government to furnish us with rolls in order that we may sign such roll or polls and so qualify ourselves to vote for a member to represent us in the New Zealand Parliament. That roll or form should be printed in the Maori Language and then forwarded to us. This should be done as soon as possible during the coming month of November because that the time for holding the election of a Maori member is close at hand.
That is all we have to say.
Hoani Taipua M.H.R.
List of womens names:
Te Ara Takana and 51 other women
From: Hoani Taipua, MHR, Te Awahuri Date: 27 October 1893 Subject: Application from certain Maori women to have their names placed on electoral roll.
Archives reference: ACGO 8333 box 651/[17] 1893/3974
collections.archives.govt.nz/web/arena/search#/?q=R24758497
For more information use our “ask an archivist” link on our website: www.archives.govt.nz
Material from Archives New Zealand Te Rua Mahara o te Kāwanatanga
Employment Application Process
Front row L to R: High School medalists—Silver-Codie Loftus, Boone Career Center & Technical Center (W.Va.); Gold-Braeden Santos, Greater New Bedford RVTHS (Mass.); and Bronze-Courtney Knihtila, Wilson Central High School (Tenn.); and, national technical committee member Yuette Weaver. Back row L to R: National technical committee member Diane Swenson; College/postsecondary medalists—Silver-Kimberly R NeSmith (Ga.); Gold-Dawn Fenton, Sheridan Technical College (Fla.); and Bronze-Connie Davis, Tennessee College of Applied Tech-Chattanooga, (Tenn.); and National Technical Committee Member Sherry Anderson.
gpsonphone.com/mobile-applications/cell-phone-security-tr... How many applications in your smartphone and is that night for your cell phone security ?
Rafael Mariano Grossi, IAEA Director General, welcomes delegates and participants as he delivers his opening remarks at the virtual meeting of the Standing Advisory Group on Nuclear Applications (SAGNA) held at the Agency headquarters in Vienna, Austria. 11 February 2021. Joining the DG in this meeting are Najat Mokhtar, IAEA Deputy Director General and Head of the Department of Nuclear Sciences and Applications, Jean-Pierre Cayol, Departmental Programme Coordinator, Department of Nuclear Sciences and Applications, Toshio Kaneko, Special Assistant to the Director General for Nuclear Energy, Nuclear Applications and Technical Cooperation and Sayed Ashraf, Senior Scientific Adviser to the DG.
Photo Credit: Dean Calma / IAEA
Disregard email drafts, notes applications and daily agenda administrators: Taskade does all that and the sky is the limit from there
All that I have to keep my life running is put away on the web. Some place. I can't discover it.
I'm discussing all the record numbers, meeting notes, daily agendas, contact data and section drafts I have to see each day. Additionally the plans I need to cook, wines I have to attempt, and YouTube recordings I should watch. A portion of that stuff lives in my email inbox, and some in Google Docs. At that point there are my Pinterest sheets, incidental bookmarks and the Evernote account I can never compose lucidly.
In principle, the web makes it simpler than any time in recent memory to keep all that I need a couple of taps away. Actually, the web has a method of dividing our lives. It resembles I composed everything in a journal and afterward become inebriated, tore out each page and shrouded them in better places around my home.
Taskade makes an extraordinary device for easy plans for the day, and you can utilize photographs, emoticons and stock workmanship to tidy them up.
Photograph: David Pierce/The Wall Street Journal
In the course of recent weeks, an application called Taskade has helped me transform mayhem into request. Taskade joins huge numbers of the best highlights of Google Docs, Excel and Dropbox, alongside heaps of assignment the executives and hierarchical instruments. Taskade Labs Chief Executive Ivan Zhao depicts the item as "the up and coming age of Microsoft Office," which is a little hyperbolic and a ton aspiring. However, it is the best life-association device I've attempted.
Taskade consolidates the highlights of a note-taking application, an assignment the executives application and a spreadsheet device the way that Steve Jobs joined an iPod, a cellphone and an internet browser into the iPhone: All these devices cooperate to make something more than its parts.
I should make reference to that Taskade is genuinely costly: It has a restricted complementary plan, and expenses $8 every month for hefty use. All things considered, it may pay for itself in the applications it replaces, and I've discovered it effectively worth the expense.
I presently have a page with all my carrier and lodging faithfulness numbers in a bulleted list, over a photograph of my dental protection card and an installed map with bearings to my dental specialist's office. I made information bases with all the films, books, TV shows, and YouTube recordings I have to get to—every cell opens to a rich archive with my notes and considerations. Taskade has all the meetings, research material and frameworks for my segments. I'm getting hitched soon and am gazing intently at my marital daily agenda consistently.
One of Taskade's most up to date includes is an information base apparatus, which you can see as a table, a schedule and that's only the tip of the iceberg.
Photograph: David Pierce/The Wall Street Journal
I used to require five separate applications to keep so much stuff straight. Presently it's all in Taskade, a couple of snaps or a basic pursuit away.
Square by Block
It may be simpler to consider Taskade a super-straightforward web designer than a profitability application.
At the point when you open another page in the application, you're truly making a clear matrix onto which you can put and organize pretty much anything. The application's fundamental component is the square, which could be a passage of text, a bulleted list, a table, a picture, a code piece, a YouTube video, a PDF and that's only the tip of the iceberg. You embed blocks with a tap or console alternate way, and afterward reorder and sort out these however much you might want. You can without much of a stretch change the idea of a square, as well. For example, you can choose a lot of text and transform it into a daily agenda.
Taskade's essential component is the square, which takes numerous structures: text, joins, pictures, bookmarks and that's only the tip of the iceberg.
Photograph: David Pierce/The Wall Street Journal
Taskade resembles chess: simple to learn, hard to ace. The application itself looks genuinely natural, with a sidebar on the left and your open page on the right. It has a couple of stylish comforts, similar to the alternative to add a spread photograph to the head of any page.
At the point when you first open the application, however, it doesn't do what's necessary to assist you with understanding all that it can do. Even following quite a while of utilizing Taskade every day, I'm just currently making sense of the most proficient approaches to get things done while attempting to abstain from settling on awful design choices. Do I truly require a full-page photograph inside my daily agenda? My recommendation: Make weighty utilization of Taskade's layouts, since they help you spread out pages and show what the application's prepared to do.
There are local Taskade applications for Windows, Mac and iOS. Mr. Zhao says an Android application ought to be accessible inside weeks. The web application works wonderfully on work area and portable, as well, and it's precisely the same experience regardless of which stage you're utilizing.
Taskade is exceptionally reliant on web network. It works disconnected uniquely with pages you've opened as of late while associated—which implies everything you can do is cross your fingers each time you open Taskade on a plane. On the upside, you can implant tweets and YouTube recordings, even whole website pages, inside a Taskade report.
Photograph: David Pierce/The Wall Street Journal
In spite of the fact that I use Taskade to keep steady over my own work and life (and you ought to as well), Taskade is intended for business groups. It offers communitarian altering, inline remarks and valuable devices for overseeing consents and allocating undertakings. In the event that you utilize Slack, you can get cautions each time somebody remarks on or changes a Taskade archive. Is anything but a substitute for Slack or Salesforce, however it can supplant a significant number of the apparatuses endless organizations use to store and offer data.
All in one resource
Matt Galligan, organizer of the Picks and Shovels Co., a digital money administrations startup, offered a valuable representation for Taskade. He says utilizing the application is much the same as shopping on Amazon. Previously, "stores specific," he stated, "and they worked admirably." Then Amazon went along and accumulated everything. It perhaps wasn't the best store for any single thing, yet the one-stop comfort made it brilliant.
That is simply it: Taskade isn't as ground-breaking a spreadsheet device as Excel, and it doesn't have a portion of the errand the board highlights I need—when an undertaking is expected, I might want an alarm, for example. (Taskade says that is coming.) Yet the application has helped me shave the spots I hold stuff down to only two. I can't prevent email from coming in; I can put everything else in Taskade.
Photograph: David Pierce/The Wall Street Journal
There's parcels left for the Taskade group to do, obviously. Notwithstanding task updates, it's additionally taking a shot at schedule sync, PowerPoint-style introduction includes, a web trimmer, better disconnected help and that Android application. It's additionally wanting to help administrations, for example, Zapier and If This Then That (IFTTT), which help move information between applications. In any case, it as of now accomplishes more than any of its rivals.
For quite a long time, I've bobbed around different note-taking applications and efficiency devices, never entirely upbeat. Evernote makes it simple to catch data, yet I never preferred the interface. Google Docs and Keep don't offer enough highlights. Trello, Asana and other task the board programming don't work for note taking.
Taskade wires the best of each—and others—into an uncommon renaissance application, capable in endless techniques for creation and association. I can't put a cost on the true serenity that originates from an unfragmented life. Pause, yes I can: It's eight bucks every month.
Crude Paste Data
Disregard email drafts, notes applications and daily agenda supervisors: Taskade does all that and that's only the tip of the iceberg
All that I have to keep my life running is put away on the web. Some place. I can't discover it.
I'm discussing all the record numbers, meeting notes, plans for the day, contact data and segment drafts I have to see each day. Besides the plans I need to cook, wines I have to attempt, and YouTube recordings I should watch. A portion of that stuff lives in my email inbox, and some in Google Docs. At that point there are my Pinterest sheets, random bookmarks and the Evernote account I can never arrange soundly.
In principle, the web makes it simpler than any time in recent memory to keep all that I need a couple of taps away. In actuality, the web has a method of dividing our lives. It resembles I composed everything in a scratch pad and afterward become inebriated, tore out each page and shrouded them in better places around my home.
Taskade makes an incredible device for easy plans for the day, and you can utilize photographs, emoticons and stock workmanship to tidy them up.
Photograph: David Pierce/The Wall Street Journal
In the course of recent weeks, an application called Taskade has helped me transform mayhem into request. Taskade consolidates a significant number of the best highlights of Google Docs, Excel and Dropbox, alongside loads of undertaking the executives and authoritative instruments. Taskade Labs Chief Executive Ivan Zhao depicts the item as "the up and coming age of Microsoft Office," which is a little hyperbolic and a ton aggressive. Be that as it may, it is the best life-association apparatus I've attempted.
Taskade joins the highlights of a note-taking application, an assignment the executives application and a spreadsheet instrument the way that Steve Jobs consolidated an iPod, a cellphone and an internet browser into the iPhone: All these apparatuses cooperate to make something more than its parts.
I should make reference to that Taskade is genuinely costly: It has a restricted complementary plan, and expenses $8 every month for substantial use. In any case, it may pay for itself in the applications it replaces, and I've discovered it effectively worth the expense.
I presently have a page with all my carrier and inn faithfulness numbers in a bulleted list, over a photograph of my dental protection card and an implanted guide with bearings to my dental specialist's office. I made information bases with all the films, books, TV shows, and YouTube recordings I have to get to—every cell opens to a rich archive with my notes and considerations. Taskade has all the meetings, research material and diagrams for my segments. I'm getting hitched soon and am gazing intently at my marital plan for the day consistently.
One of Taskade's freshest highlights is an information base apparatus, which you can see as a table, a schedule and that's only the tip of the iceberg.
Photograph: David Pierce/The Wall Street Journal
I used to require five separate applications to keep so much stuff straight. Presently it's all in Taskad
Upgrading of Kandy's General's cancer treatment facilities began in 1998 with $260,00 in project assistance from IAEA's Technical Co-operation Programme. (Kandy General Hospital, Sri Lanka, May 2003)
Photo Credit: Petr Pavlicek/IAEA
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Doncaster Gate Hospital to be Demolished / Application made by Rotherham Council
Doncaster Gate Hospital Rotherham was originally known as the Rotherham Hospital and Dispensary from 1872 to 1948,
it later became the Doncaster Gate Hospital.[1] There had been a dispensary in Rotherham since 1806.
This was initially situated on Wellgate before a new dispensary was built on College Street in 1828.
Forty five years later this institution along with its finances was incorporated into the new hospital at Doncaster Gate.
Opened to patients in 1872 it was the first purpose built hospital in the town. At the cost of just over £9,000
it was only able to be erected and maintained as a result of subscriptions donated by every section of the community
encompassing ladies living on Moorgate to the workers in the surrounding factories
Some Plaques read
"1931 This tablet is to commemorate the generous
gift of £5700 from the miners welfare fund
towards the buildings & furnishings of this
out-patients department which forms part of
ROTHERHAMS WAR MEMORIAL"
--
This Building was Erected as a
Memorial to the men of Rotherham
who fell in the Great War 1914-18.
inc my uncle killed 22nd June 1916
Check-Out Best Android Movies Applications
These days, it becomes easily possible for people to watch their favorite movies in a bus, train or anywhere where they are feeling bore.
bdaily.co.uk/technology/24-05-2013/check-out-best-android...
I don't like to leave them behind..
My friends, my familly and all the other people of Hostville.
But Blackhaven is in some serious trouble, when I say this, you probably think of super criminals and gangleaders, but thats not the only problem..
Blackhaven is full of the worst type of scum, the people that dare to call themself heroes, the people that don't care about human lifes.
The people that think there doing good.
They are only making it worse...
Name: John (last name unknown) AKA - Punchline
Attack: 16
Defence: 15
Agility: 16
Intelligence: 17
Charisma: 16
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Okay guys, this is my B4B application, I will make a backstory on him, but not right now.
While building this, I realized it looked alot like Peppersalts Wolverine build, so I made some slight changes.
Stephanie Ichien (right), the research and scholars coordinator at Oregon Sea Grant, offers help during an information session for undergraduate and graduate students who were interested in applying for scholarships and internships that Oregon Sea Grant funds or administers. The event took place at the Centro Cultural César Chávez at Oregon State University. (photo by Tiffany Woods)