Sanskrit is a standardized dialect of Old Indo-Aryan. Its linguistic ancestry can be traced back to Proto-Indo-European. The Indo-Aryan migration theory proposes that the Indo-Aryans migrated from the Central Asian steppes into South Asia during the early 2nd millennium BC, which brought the Indo-Aryan languages. The main script used to write Sanskrit is Devanāgarī, but it can be written in the scripts of various other Indian languages and is sometimes written by the Latin alphabet.
William Jones, working as a judge in India in the 18th century, studied Sanskrit and recognized its similarities to Latin and Greek.
Sanskrit literature includes poetry and drama. There are also scientific, technical, philosophical and religious texts. Sanskrit continues to be widely used as a ceremonial language in Hindu religious rituals and Buddhist practice in the form of hymns and chants.
The language has a very complex grammar, with eight grammatical cases, the grammatical genders, and three grammatical numbers. The language is considered highly scientific as each word in a sentence can describe the number, gender, and action of the subject.
Dementia
Dementia is a group of diseases with symptoms, which affect the way people think and interact with each other. It can often be linked to a disease or damage done to the brain. Very often, short-time memory, mind, speech and motor skills are affected. Certain forms of dementia cause a change in the personality of the sufferer. A person suffering from dementia will lose certain skills and knowledge they already had. This is the main difference to other conditions affecting the mind. People who suffer from learning problems, or lower intelligence will never acquire certain skills, people suffering from dementia will lose skills they have acquired. Dementia is more common in older people, but younger people can be affected as well. Certain forms of dementia can be treated, to some extent. The most common form of dementia is Alzheimer's disease, which accounts for between 50 and 60 percent of all cases. Other types include vascular dementia and lewy body dementia.
Famous people who suffered from dementia include Augusto Pinochet, the Chilean leader, and also Rosa Parks, the civil rights activist.
People who see the following worsen may suffer from dementia:
Behavioral changes may include:
Some types dementia are reversible. This means the damage can be undone. Other types are irreversible. This means that they cannot be undone. Irreversible dementia is usually caused by an incurable disease, such as Alzheimer's disease.
Reversible causes of dementia also include diffuse axonal injury after injuries to the head or the brain, known medically as Traumatic brain injury.
Creutzfeldt-Jakob disease causes a dementia that gets worse quickly, over weeks or months, and is caused by prions. ,other forms like encephalopathy or delirium may develop relatively slowly, over a number of years.
The two leading causes of dementia are Alzheimer's disease and Multi-infarct disease. Glioma related tumors are another kmown cause. Alcohol dementia, is sometimes associated with Wernicke-Korsakoff syndrome, and is caused by long-term or uncontrolled, heavy alcohol abuse.
Possible metabolic causes are such as liver failure or kidney failure; and chronic subdural hematoma. Possible other causes may include brain infection by illnesses like meningitis leading in cases to viral encephalitis drug toxicity (e.g. anticonvulsant drugs). A recent report by Science Daily says that researchers at the University of Bergen, in Norway have discovered a connection between Oral health and Alzheimers disease.
Elasticity (physics)
Something that is elastic can be stretched or deformed (changed) and returned to its original form, like a rubber band. It tries to come back to its first shape. The "stress" is the force applied; the "strain" is how much the shape is changed, and the elastic modulus is the ratio between those numbers.
This idea was first suggested by Robert Hooke in 1675.
Harmonica
A harmonica is small musical instrument that is played with the mouth by blowing into holes in its side. Harmonicas are cheap and easy to play. Harmonicas produce their musical sounds from the vibrations of reeds in the harmonica's metal case. Harmonicas are used in blues music, folk music, rock and roll music, and pop music. A special type of harmonica, the chromatic harmonica, is used in jazz and classical music. Harmonicas are made in several different keys: G, A♭, A, B♭, B, C, D♭, D, E♭, E, F, and F♯. Each key can play a different range of notes.
Harmonicas are played by blowing or sucking air into one side. On this side, there are many holes. Each hole has a different note. Different notes are played when you blow or suck air.
Another type of harmonica is the chromatic harmonica. More songs can be played on it than a regular harmonica, because chromatic harmonicas can play more different notes. Chromatic harmonicas have a button which moves a sliding bar. By pressing the button, the player can play a larger range of notes.
The harmonica is called many different names, such as: mouth organ, mouth harp, Hobo Harp, French harp, Reckless Tram, harpoon, tin sandwich, blues harp, Mississippi saxophone, or simply harp.
Straits of Florida
The Straits of Florida (or Florida Straits) is a strait between the Florida Keys and Cuba.
Electron microscope
An electron microscope is a scientific instrument which uses a beam of electrons to examine objects on a very fine scale. In an optical microscope, the wavelength of light limits the maximum magnification that is possible. As electrons have a smaller wavelength, they can achieve a higher magnification, and can see very small objects - typically around 1,000 times smaller than those seen in an optical microscope. The outline of objects, as revealed by the flow of electrons, is changed into a picture using visible light for people to see. Electron microscopes were invented in Germany in the 1930s.
A beam of electrons is sent towards the specimen - some electrons are reflected, while some pass through. Those that pass through are detected and used to form an image of the specimen at a magnification of about 500,000 times. This microscope is more powerful than a light microscope.
Similar to a Transmission Electron Microscope, but the reflected electrons are detected. By measuring the reflected electrons, some information about the surface of the specimen can be gathered.
A narrow beam of electrons is moved across the specimen and a picture is built up piece by piece by detecting how the electrons are reflected or absorbed as it moves.
It combines the high magnification of TEM with the better surface detail of SEM. It can be used to perform complex analysis on the specimen, which cannot be done using TEM alone.
Insomnia
Insomnia is when people cannot sleep. A person with this problem is called an "insomniac". Insomnia can mean a problem with getting to sleep or a problem with staying asleep. Insomnia is a symptom and not a disease or illness.
There are at least three different types of insomnia:
There are many causes of insomnia. Some of them are:
There are drugs available that can help treat the different kinds of insomnia. In some cases, there are also certain herbs that can help. A third way that seems to help is a type of therapy that aims at changing the behaviour of those affected.
Airbus A320 family