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scutari

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Posts posted by scutari


  1. I live i n albania and i hear lot of strange and weird and really scaring murders done all over the country.I think that death penalty would help us have a lower percentage of murders and daily criminel which have no mercy.The point is that albania is trying to get in EU and so european community does not apply death penalty,which is not good to me.Usa which is a country who applies this penalty is having more succes in fighting the crime


  2. Well regarding to me it would be more easy for u on focusing about concret things that can help us link with the existence of world and life i.e You all know that if earth was a 1 mm away from sun as it is now,earth would be frozenand if earth would nearer to the sun as it is now, it would be fire all over the world.So what is this strange coincidence that erath is at perfect distance from sun..????????


  3. You know if u get prepared well and study hard before an exam you will get high results.I think that life after death or other life has to do with this.So if u are behaving well this life u get better in the other,if not u can imagine by yourself.Important is that most of religions all over the world believe in the life after death and so knowing that most of peoplebelieve in religions...maybe living its not ending here in this planet..........


  4. Nuclear Weapon Radiation Effects
    Blast and thermal effects occur to some extent in all types of explosions, whether conventional or nuclear. The release of ionizing radiation, however, is a phenomenon unique to nuclear explosions and is an additional casualty producing mechanism superimposed on blast and thermal effects. This radiation is basically of two kinds, electromagnetic and particulate, and is emitted not only at the time of detonation (initial radiation) but also for long periods of time afterward (residual radiation). Initial or prompt nuclear radiation is that ionizing radiation emitted within the first minute after detonation and results almost entirely from the nuclear processes occurring at detonation. Residual radiation is defined as that radiation which is emitted later than 1 minute after detonation and arises principally from the decay of radioisotopes produced during the explosion.

    About 5% of the energy released in a nuclear air burst is transmitted in the form of initial neutron and gamma radiation. The neutrons result almost exclusively from the energy producing fission and fusion reactions, while the initial gamma radiation includes that arising from these reactions as well as that resulting from the decay of short-lived fission products. The intensity of initial nuclear radiation decreases rapidly with distance from the point of burst due to the spread of radiation over a larger area as it travels away from the explosion, and to absorption, scattering, and capture by the atmosphere. The character of the radiation received at a given location also varies with distance from the explosion. Near the point of the explosion, the neutron intensity is greater than the gamma intensity, but with increasing distance the neutron-gamma ratio decreases. Ultimately, the neutron component of initial radiation becomes negligible in comparison with the gamma component. The range for significant levels of initial radiation does not increase markedly with weapon yield and, as a result, the initial radiation becomes less of a hazard with increasing yield. With larger weapons, above 50 Kt, blast and thermal effects are so much greater in importance that prompt radiation effects can be ignored.

    Blast and thermal injuries in many cases will far outnumber radiation injuries. However, radiation effects are considerably more complex and varied than are blast or thermal effects. A wide range of biological changes may follow the irradiation of an animal, ranging from rapid death following high doses of penetrating whole-body radiation to an essentially normal life for a variable period of time until the development of delayed radiation effects, in a portion of the exposed population, following low dose exposures. When comparing the effects of radiation, that dose which is lethal to 50% of a given population is a very useful parameter. The term is usually defined for a specific time, being limited, generally, to studies of acute lethality. The common time periods used are 30 days or less for most small laboratory animals and to 60 days for large animals and humans. On occasion, when a specific type of death is being studied, the time period used will be shorter. The specified period of time is indicated by a second number in the subscript; LD50/30 and LD50/5 indicate 50% mortalitywithin 30 days and 5 days, respectively. The LD50 is a median,

    Many military systems (and, increasingly, civilian systems such as communications and weather satellites) must be capable of operating in environments containing sources of both natural and man-made radiation. In this context “radiation” refers to particle-like effects caused by neutrons, photons, and charged particles. When energetic radiation passes through matter, many complex processes occur including Compton scattering, photoelectric excitation, Auger electron emission, and pair production caused by photons; ionization caused by charged particles; and various nuclear processes caused by neutrons. Neutron-induced reactions can stimulate the release of charged particles and photons.

    As the level of integration of modern electronics increases, and as the size of individual devices on chips shrinks, electronic systems become increasingly vulnerable to any unwanted charge deposition or atomic displacement within the silicon base of the semiconductors. Effects which are generally short-lived are classed as transient radiation effects in electronics (TREE). EMP generated within the system by the passage of radiation through cases, circuit boards, components, and devices is called systems-generated EMP or SGEMP.

    The quantification of both phenomena is critical to the design of optical and electronic packages which can survive these effects. Ideally, such subsystems should be produced without significant increases in either cost or weight. Because the radiation which causes TREE and SGEMP is relatively strongly absorbed in the atmosphere, both phenomena are of primary importance to space systems exposed to high-altitude, high-yield nuclear detonations.

    Survivability analysis of semiconductor electronics requires quantitative understanding of at least the following:

    * Ionization effects (both total dose and dose rate) which produce enhanced photocurrents in the transient state and can also cause permanent trapping of free charge in metal oxide semiconductor (MOS) devices.
    * Displacement effects (displacement of lattice atoms leading to changes in the bandgap energy levels) and thermomechanical shock induced by the rapid deposition of energy from the nuclear detonation.

    These effects depend not merely on total dose but also on dose rate. Naturally occurring effects include total dose from electrons and protons trapped in the Van Allen belts and single-event upset (SEU) or even single-event burnout. SEU results when enough ionization charge is deposited by a high-energy particle (natural or man-produced) in a device to change the state of the circuit—for example, flipping a bit from zero to one. The effect on a power transistor can be so severe that the device burns out permanently.

    Large x- and gamma-ray dose rates can cause transient upset and permanent failure. These dose rates are delivered over a 10–100 ns time period. Delayed gammas in a 1–10 microsecond period at the same dose rate can cause latchup and burnout of devices. Latchup is the initiation of a high-current, low-voltage path within the integrated circuit and causes the circuit to malfunction or burnout by joule heating.

    Neutron fluences of greater than 10 10 n/cm 2 can cause permanent damage. A nuclear weapon will typically deliver this dose in a period from 0.1 to 10 ms. Total ionization greater than 5,000 rads in silicon delivered over seconds to minutes will degrade semiconductors for long periods. As device sizes decrease, the threshold for damage may go down.
    Residual Radiation
    The residual radiation hazard from a nuclear explosion is in the form of radioactive fallout and neutron-induced activity.

    These are intermediate weight isotopes which are formed when a heavy uranium or plutonium nucleus is split in a fission reaction. There are over 300 different fission products that may result from a fission reaction. Many of these are radioactive with widely differing half-lives. Some are very short, i.e., fractions of a second, while a few are long enough that the materials can be a hazard for months or years. Their principal mode of decay is by the emission of beta and gamma radiation. Approximately 60 grams of fission products are formed per kiloton of yield. The estimated activity of this quantity of fission products 1 minute after detonation is equal to that of 1.1 x 1021 Bq (30 million kilograms of radium) in equilibrium with its decay products.

    Nuclear weapons are relatively inefficient in their use of fissionable material, and much of the uranium and plutonium is dispersed by the explosion without undergoing fission. Such unfissioned nuclear material decays by the emission of alpha particles and is of relatively minor importance.

    If atomic nuclei capture neutrons when exposed to a flux of neutron radiation, they will, as a rule, become radioactive (neutron-induced activity) and then decay by emission of beta and gamma radiation over an extended period of time. Neutrons emitted as part of the initial nuclear radiation will cause activation of the weapon residues. In addition, atoms of environmental material, such as soil, air, and water, may be activated, depending on their composition and distance from the burst. For example, a small area around ground zero may become hazardous as a result of exposure of the minerals in the soil to initial neutron radiation. This is due principally to neutron capture by sodium (Na), manganese, aluminum, and silicon in the soil. This is a negligible hazard because of the limited area involved.

    After an air burst the fission products, unfissioned nuclear material, and weapon residues which have been vaporized by the heat of the fireball will condense into a fine suspension of very small particles 0.01 to 20 micrometers in diameter. These particles may be quickly drawn up into the stratosphere, particularly so if the explosive yield exceeds 10 Kt. They will then be dispersed by atmospheric winds and will gradually settle to the earth's surface after weeks, months, and even years as worldwide fallout. The radiobiological hazard of worldwide fallout is essentially a long-term one due to the potential accumulation of long-lived radioisotopes, such as strontium-90 and cesium-137, in the body as a result of ingestion of foods which had incorporated these radioactive materials. This hazard is much less serious than those which are associated with local fallout and, therefore, is not discussed at length in this publication. Local fallout is of much greater immediate operational concern.

    In a land or water surface burst, large amounts of earth or water will be vaporized by the heat of the fireball and drawn up into the radioactive cloud. This material will become radioactive when it condenses with fission products and other radiocontaminants or has become neutron-activated. There will be large amounts of particles of less than 0.1 micrometer to several millimeters in diameter generated in a surface burst in addition to the very fine particles which contribute to worldwide fallout. The larger particles will not rise into the stratosphere and consequently will settle to earth within about 24 hours as local fallout. Severe local fallout contamination can extend far beyond the blast and thermal effects, particularly in the case of high yield surface detonations. Whenever individuals remain in a radiologically contaminated area, such contamination will lead to an immediate external radiation exposure as well as a possible later internal hazard due to inhalation and ingestion of radiocontaminants. In severe cases of fallout contamination, lethal doses of external radiation may be incurred if protective or evasive measures are not undertaken. In cases of water surface (and shallow underwater) bursts, the particles tend to be rather lighter and smaller and so produce less local fallout but will extend over a greater area. The particles contain mostly sea salts with some water; these can have a cloud seeding affect causing local rainout and areas of high local fallout. For subsurface bursts, there is an additional phenomenon present called "base surge." The base surge is a cloud that rolls outward from the bottom of the column produced by a subsurface explosion. For underwater bursts the visible surge is, in effect, a cloud of liquid (water) droplets with the property of flowing almost as if it were a homogeneous fluid. After the water evaporates, an invisible base surge of small radioactive particles may persist. For subsurface land bursts, the surge is made up of small solid particles, but it still behaves like a fluid. A soil earth medium favors base surge formation in an underground burst.

    Meteorological conditions will greatly influence fallout, particularly local fallout. Atmospheric winds are able to distribute fallout over large areas. For example, as a result of a surface burst of a 15 Mt thermonuclear device at Bikini Atoll on March 1, 1954, a roughly cigar-shaped area of the Pacific extending over 500 km downwind and varying in width to a maximum of 100 km was severely contaminated. Snow and rain, especially if they come from considerable heights, will accelerate local fallout. Under special meteorological conditions, such as a local rain shower that originates above the radioactive cloud, limited areas of heavy contamination may be formed.



    i posted this coz you all know how real and threatning the war of nuclear arms is.!!

    Notice from rvalkass:

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  5. Up to 90% of adult Americans consume caffeine every day. Most commonly, the caffeine is in coffee, tea, soft drinks, and chocolate. This adds up to about 280 mg of caffeine per day, or the equivalent of about two cups of coffee. People who consume caffeine on a regular basis report that they experience a variety of unpleasant symptoms when this popular stimulant is withdrawn, similar to the symptoms felt with the withdrawal of other addictive substances.
    Doctors at Johns Hopkins University have confirmed that true caffeine addiction can occur even when small amounts (corresponding to about one cup of coffee per day) of caffeine are consumed. In a review of 170 years of caffeine research, the Hopkins team examined 57 separate studies and found that the features of caffeine withdrawal can vary from mild mood changes to systemic, flu-like symptoms. The major types of caffeine withdrawal reactions were identified as:

    headache, fatigue or drowsiness
    depressed, irritable mood
    difficulty concentrating
    flu-like symptoms of nausea and/or vomiting
    muscle pain or stiffness
    The withdrawal symptoms typically began 12 to 24 hours after the last dose of caffeine, became most severe after one to two days, and lasted for two to nine days.

    If you want to cut down on caffeine, experts advise doing so slowly. Decrease your consumption gradually over a period of days (or weeks, if you're a heavy consumer) to avoid being plagued by withdrawal symptoms.


    Notice from rvalkass:

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  6. here below you have some information about dehidration??

    What is dehydration?
    Dehydration can be defined as "the excessive loss of water from the body." Diseases of the gastrointestinal tract can lead to dehydration in various ways. Often, dehydration becomes the major problem in an otherwise self-limited illness. Fluid loss may even be severe enough to become life-threatening.

    The following information is designed to provide some understanding and guidance in order to avoid the effects of dehydration. Treatment, however, should be individualized, and your physician should be contacted before using any of the measures outlined here.

    Our bodies require a certain amount of fluid intake on a daily basis to function; the minimum is about equal to four 8 ounce glasses (one liter or one quart). Requirements vary with activity and age, but most active persons need two to three times this basic amount. Basic fluid intake serves to replace the fluids which are required to perform our normal bodily functions. If we take in less or lose more fluid than is needed, the end result is dehydration.


    What causes dehydration?

    Excessive loss of fluid through the intestinal tract can happen when the intestine is "inflamed" or damaged, or when bacteria or viruses cause the lining of the intestine to produce more fluid than can be absorbed.

    Abnormal connections that are between parts of the intestinal tract (fistula) may also lead to fluid depletion. A decrease in oral liquid intake may be due to nausea or loss of appetite; this may be worsened by an inability to keep things down (vomiting). Medications also can cause an increased fluid loss. Prior bowel resection or ileostomy can make a person more susceptible to dehydration.


    What are symptoms and signs of dehydration?

    A reliable clue to indicate dehydration is a rapid drop in weight. This loss may equal several pounds in a few days (or at times hours). A rapid drop of over 10% (fifteen pounds in a person weighing 150 pounds) is considered severe. Symptoms may be difficult to distinguish from those of the original illness, but in general, the following signs are suggestive of dehydration; increasing thirst, dry mouth, weakness or lightheadedness (particularly if worsening on standing), darkening of the urine, or a decrease in urination. Severe dehydration can lead to changes in the body's chemistry, kidney failure, and can even become life-threatening.


    Notice from rvalkass:

    Copied from http://www.medicinenet.com/dehydration/article.htm
    You need QUOTE tags around any material which isn't your own.


  7. there are some special sites like meals2earn.net that gives you 500euro to sign up and very high prizes to click..i think this sites are spam or junk or they are wanting to get our attention..i dont think anyone in the world can give u 500 euro and not one person but to thousands..how can one believe this thing..well it must be some one monitoring this thing out...well i truly beleive and can get as rewarded that to get money online is pretyy cough


  8. I had a friend of mine.His name is gerald.He was pretty fat and had dificulties in playing sports,enterteinment,sex.All he knew about life was eating.We all eat dude,but his eating was a really satisfying implementation.So one day after not meeting him for months i saw him.............oh my god he was as thin as me..he had been over 130 kg and now he was 90 kg for a height of 1.85cm..i didnt belive my eyes..what have u done i asked? he did not tell me..but later i heard that he had been using some hormones and drug medications..i think that is no good that one person losses 35kg in 3 months..its not helthy..u can make twice a day a long run and eat vegeterian..i guarantee for a couple of weeks u can be really cool..have a nice day..from scutari

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