Regulator Diaphragm
Regulator Diaphragm Benefits and Dangers of Deep Breathing Optimal deep breathing increases our vitality and promotes relaxation. Unfortunately, when we try to take a so-called deep breath, most of...
Regulator Diaphragm
Benefits and Dangers of Deep BreathingOptimal deep breathing increases our vitality and promotes relaxation. Unfortunately, when we try to take a so-called deep breath, most of us do the exact opposite: we "take a breath" suck in our bellies and raise our shoulders. This is shallow breathing as measured by volume as it tries to access air from the high chest where there is to little to no lung volume When our breathing is full and deep, and mostly in the lower thorax, the belly, lower ribcage and lower back where most of the lung volume resides, should all expand in a full circle on inhalation, thus allowing the diaphragm to drop down deeper into the abdomen, front, side and back. Then it retracts on exhalation, allowing the massaging action of the diaphragm to move fully upward toward the heart. This is healthy deep breathing. Most so called deep abdominal breathing results in deep effortful breathing and is not always really breathing deeply. It can actually be harmful or exacerbate existing, undetected, unbalanced, dysfunctional breathing. Deep breathing when done incorrectly will cause accessory breathing muscles to engage. These muscles should not be anything but supportive. Like the shaft of an elevator should guide the elevator but not cause it to go up and down. The key to deep breathing is to begin to learn to sense unnecessary tension in our bodies and to learn how to release this tension. Work with deep breathing begins with and requires internal awareness. Without sufficient awareness and heightened sensitivity to what is happening inside our bodies, efforts to change breathing will have little to no effect, often creates more tension and stress and undermine our health and well-being. The way we use "breathing exercises" has reference to breathing patterns (holding, gasping, sighing), breathing rate, breathing depth (volume), locus of breathing (chest and diaphragm), breathing coordination, sequencing and balance (relationship of upper and lower aspects of the breathing wave), breathing resistance (nose and mouth), and collateral muscle activity for breathing regulation (muscles other than the diaphragm such as those in the rib cage as well as supporting posture). The downward and upward movements of the diaphragm, combined with the outward and inward movements of the belly, ribcage, and release of lower back musculature, allow for movement, "massage" , detoxifying nearby organs, and helps stimulate blood flow and peristalsis as well as pump the lymph more efficiently our lymphatic system. The lymphatic system has no pump other than muscular movements of human activity including the movements of the rib cage and diaphragm. Deep Breathing for Relaxation When our breathing is deep and easy involving the respiratory muscles of the chest and belly, lower ribcage, and lower back--our breathing naturally slows down but due to no vasoconstriction stays deeper where it needs to be even during severe challenges including survival. This slower, deeper lower breathing, combined with the rhythmical pumping of our diaphragm, abdomen, and belly, helps modulate our parasympathetic nervous system--our "relaxation response". Such breathing helps to harmonize our nervous system and reduce the amount of stress in our lives. It also supports states of what might be called "courage under fire". Breathing mechanics for relaxation, though a major marker for therapeutic process, is too often the exclusive focus of breathing training and learning. Ease is more important than relaxation as ease and flow facilitate relaxation but relaxation does not necessarily foster ease and flow. Though slower breathing is most often better than faster breathing many therapists and trainers who teach breathing can deregulate respiratory chemistry by inducing over breathing/unbalanced breathing with their "relaxation" instructions to trainees i.e. slowing down the breathing without balancing it and not ensuring it has become parasympathetically dominant. This often results in worsening respiratory faults (rib cage distortions), or hindering optimal breathing balance and coordination as well as confusing the client/ patient by inducing system-wide psycho-spiritual and psycho-physiological stresses. Overbreathing This way of breathing more but staying parasympathetically based may account for phenomena called the Law of Mass Action whereby the extra oxygen can be "packed" into the body tissues for later recovery and usage. This is not taken into account with most definitions of overbreathing. Overbreathing to me is more about chest breathing that causes or worsens vasoconstriction including excessive nerve enervation and muscle tensions. That said, Optimal Breathing School faculty member Dr. Peter Litchfield helps clarify facts to remember that may well apply to the correct applications of what is called overbreathing: * Myth: Good breathing means relaxation. * Myth: Learning good breathing requires relaxation. * Myth: Diaphragmatic breathing is synonymous with good breathing. * Myth: Good respiration is all about the mechanics of breathing. * Myth: Diaphragmatic, deep, slow breathing means better distribution of oxygen. * Myth: Under breathing/shallow breathing, with the result of oxygen deficit or loss of personal power is common. Good breathing translates into optimizing respiratory psychophysiology, and contrary to popular thinking, learning to breathe well does not simply mean deep, slow, diaphragmatic breathing in the context of learning how to relax. Adaptive breathing mostly means regulating blood chemistry, through proper ventilation of carbon dioxide, in accordance with metabolic and other physiologic requirements associated with all life activities and circumstances. Deregulated, unbalanced breathing chemistry, i.e., hypoScapnia (CO2 deficiency) as a result of over breathing means serious physiological crisis involving system-wide compromises that involve physical and mental consequences of all kinds. Evaluating, establishing, maintaining, and promoting good respiratory chemistry is extremely important in any professional practice involving breathing training. Monitoring good breathing chemistry establishes a system-wide context conducive to help optimize health and maximize performance. Breathing training is invariably included as an important component of relaxation training, but does not in of itself constitute optimal relaxation or optimal respiration. Optimal breathing implies ALL factors are in place in any moment in time. 1. Breathing chemistry including exchange from lungs to blood, blood to lungs and oxygen transport to all other cells of body. Each one influences the others. One may be more necessary at any given moment depending upon several circumstances such as stress and or the task at hand. Optimal breathing can present itself during times of stress and challenge even where relaxation is neither possible nor adaptive. Training for various tasks alters the ratios and needs for each of the 9 basic influences as it inputs a conditioning factor that changes mechanical and cellular needs in the moment. About the Author Michael White is a health educator, author, breathing development specialist, public speaker, vocalist, and CEO of Breathing.com and the Optimal Breathing School. He has studied breathing development since 1975 and helped thousands transform their lives through correct breathing and nutrition. Visit Breathing.com |
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Video Surveillance in Schools
The aims of surveillance system in a school
The crimes that take place in schools are usually petty crimes, like thefts of clothes or other personal belongings, extortions of small sums of money, bullying of younger students by the older ones. But the number of more serious offenses, including battering and the crimes connected with pushing drugs also becomes a growing problem. Many people understand that even best educative measures cannot solve the problem a complex action is needed. One of efficient methods of improving safety level in a school is CCTV surveillance system, obviously decreasing the number of excesses.
The recorded events may often be the only evidence as the witnesses usually don't want to "testify" against their schoolmates, due to fear of rejection, or in fair for their own safety. Aside from improvement of security, CCTV monitoring helps to protect the school infrastructure and equipment against vandalism, the plague of majority of contemporary schools.
Diagram of surveillance system in a school
The principles
Both education authorities and the firm designing and implementing the project should realize that this kind of extensive building/s with large number of rooms and many appurtenances, as well as financial limitations, will strongly condition the range and precision of the system. First of all - it should ensure general inspection, and only several important locations will be equipped with devices allowing for precise identification of persons.
What to monitor and how?
First of all, there should be observed all possible entries to the school area. The equipment employed in that locations should ensure unambiguous identification of entering persons. The cameras have to be put close to the entrances or be equipped with lenses having large focal length. It will guarantee that the recorded material will give detailed information on appearance of everyone who enters the school, including foreign persons.
Corridors and cloakrooms are the next places where cameras are indispensable. The cameras should be placed as high as possible - it guarantees wide area of observation (without blocking view of one person by another - it is often crowd of people there), and helps to protect the cameras against damaging.
Corridors are often long and narrow - the case requires a number of cameras. They should be arranged the way that each camera sees the next one (e.g. they are placed at two opposite ends of the corridor). It will enable recording of possible attempts of destroying the cameras.
The most arguable issue, whether cameras should be mounted or not, concerns washrooms and toilets. From headmaster's point of view those rooms are extremely exposed to vandalism and various excesses. They are often considered by students to be smoking rooms.
Taking it into consideration, most of schools mount CCTV monitoring in there. The monitoring provides viewing of the main part of the room, but the inside of the cubicles is excluded from observation. Such monitoring fulfills the task (it is even possible to uncover a smoker, due to soaring smoke) and does not invade privacy of persons. The level of surveillance should be consulted with parents (e.g. acting in parent-teacher association).
In those places there are used smaller dome cameras, e.g. M10744 and M10746 (IR). Similarly popular cameras are models with view angle adjustment - V-CAM 600 M10600
.
Dome cameras M10746 in vandal-proof housings are well prepared for work inside schools
V-CAM 600 M10600 with view angle adjustment
The last area that should also be monitored is surroundings of the school, i.e. playground, sports fields, swimming pool, parking lot, or other places frequented by young people.
Because of limited number of cameras and big monitored area, the role of monitoring is usually to give a general view of the area, without possibility of precise identification. To improve the basic level of usefulness, it is important to employ color system, increasing precision of recognition.
"Secret weapon "- dummy cameras
A vital element of every surveillance system, especially of this kind, is the psychological aspect. The mere thought of being watched makes the people behave correctly, in a cultural way. This fact should be used for "intensification" of visual existence of the system with a number of dummy cameras, mounted in less critical points. This popular method of discouraging potential offenders significantly lowers the cost of the whole installation, but is really effective when the dummies are realistic - the ideal solution requires visually identical items to those being operational.
Choice of cameras - B/W or color
As mentioned, color images ensure much better effects as regards identification of people.
On the other hand, B/W system is more sensitive, and simple to adapt for night observation.
Lower sensitivity of color cameras is usually not a problem for this kind of installations, where the space is illuminated during the night. The second demand, i.e. night observation, possible with B/W cameras due to their spectral-response characteristic and use of IR lamps enabling discreet viewing of dark areas, can also be easily realized with appropriate color cameras.
The suitable color cameras switch at dusk into B/W mode and gain sensitivity. So they may be used for monitoring with IR lighting, like the camera SN-486C, M11202. The cameras are ideal tools for surveillance of playgrounds, sports fields, parking lots etc.
Color day/night camera M11202 is an ideal device for outdoor applications.
Majority of offered cameras is equipped with electronic iris control, changing their sensitivity depending on current lighting conditions. The cameras are capable of working with moderately changing light, e.g. inside a building, with use of cheap lenses without regulated diaphragm. However, cameras operating outside a building should be equipped with lenses with Auto Iris function, allowing to obtain good quality images even in extremely changing lighting conditions, from sun expose to almost complete darkness.
Appearance and mounting of cameras
Due to character of monitored places (with young people having a lot of energy) the cameras may be exposed to accidental or intentional damages. To restrict direct access to a camera, it should be mounted as high as possible, with use of additional housing that will prevent anybody from manipulating the device. There should be employed solid brackets, insensitive to e.g. ball hit. The preferred kind (...)
[This is not complete article. For full version go to DIPOL WLAN, TV-SAT, CCTV web site.]
About the Author
Please go to WLAN, CCTV, TV-SAT DIPOL Library for more informations. Detailed articles, eshop, professional self-help books can be found there.


























































