Sunday, October 26, 2014
Malachite is believed to be a strong protector of children. It is said to protect the wearer from accidents and protects travelers. Malachite has been used to aid success in business and protect against undesirable business associations. It is a stone of balance in relationships.
Malachite is always green, usually in banded tones varying from very dark green to a mellow green. Most malachite comes from Zaire, Chile and Australia.
Ancient Egyptians, Greeks and Romans used malachite for jewelry and ground it to use as eye shadow. It is used in amulets to protect against the evil eye. In the Middle Ages it was used to protect children from witches and other dangers.
Malachite is a stone that should not be used for physical healing. Malachite has been called the "mirror of the soul". It is variable in its condition. It reaches the inner feelings of the person and reflects what is there, negative or positive. It is so beautiful that one would like to wear it in jewelry, but caution must be used when wearing Malachite. It will always reflect how you feel, if you feel negative don't wear Malachite. It reminds us that we have a dual nature and it is up to each person to know and rule his own person. To help get rid of nightmares, keep a piece of Malachite in your bedroom.
Use with copper to increase the power of malachite.
Posted by Dune at 2:37 AM
Wednesday, October 8, 2014
Posted by Dune at 6:04 AM
Sunday, October 5, 2014
Saturday, October 4, 2014
The theta rhythm is an oscillatory pattern in electroencephalography(EEG) signals recorded either from inside the brain or from electrodes glued to the scalp. Two types of theta rhythm have been described. The "hippocampal theta rhythm" is a strong oscillation that can be observed in the hippocampus and other brain structures in numerous species of mammals including rodents, rabbits, dogs, cats, bats, and marsupials. "Cortical theta rhythms" are low-frequency components of scalp EEG, usually recorded from humans.
In rats, the most frequently studied species, theta rhythmicity is easily observed in the hippocampus, but can also be detected in numerous other cortical and subcortical brain structures. Hippocampal theta, with a frequency range of 6–10 Hz, appears when a rat is engaged in active motor behavior such as walking or exploratory sniffing, and also during REM sleep. Theta waves with a lower frequency range, usually around 6–7 Hz, are sometimes observed when a rat is motionless but alert. When a rat is eating, grooming, or sleeping, the hippocampal EEG usually shows a non-rhythmic pattern known as Large irregular activity or LIA. The hippocampal theta rhythm depends critically on projections from the medial septal area, which in turn receives input from the hypothalamus and several brainstem areas. Hippocampal theta rhythms in other species differ in some respects from those in rats. In cats and rabbits, the frequency range is lower (around 4–6 Hz), and theta is less strongly associated with movement than in rats. In bats, theta appears in short bursts associated with echolocation. In humans and other primates, hippocampal theta is difficult to observe at all.
The function of the hippocampal theta rhythm is not clearly understood. Green and Arduini, in the first major study of this phenomenon, noted that hippocampal theta usually occurs together with desynchronized EEG in the neocortex, and proposed that it is related to arousal. Vanderwolf and his colleagues, noting the strong relationship between theta and motor behavior, have argued that it is related to sensorimotor processing. Another school, led by John O'Keefe, have suggested that theta is part of the mechanism animals use to keep track of their location within the environment. The most popular theories, however, link the theta rhythm to mechanisms of learning and memory.(Hasselmo, 2005)
Cortical theta rhythms observed in human scalp EEG are a different phenomenon, with no clear relationship to the hippocampus. In human EEG studies, the term theta refers to frequency components in the 4–7 Hz range, regardless of their source. Cortical theta is observed frequently in young children. In older children and adults, it tends to appear during meditative, drowsy, or sleeping states, but not during the deepest stages of sleep. Several types of brain pathology can give rise to abnormally strong or persistent cortical theta waves.
Posted by Dune at 1:10 AM