Definition: –
Encephalitis is defined as inflammation of the brain. This definition means encephalitis is different from meningitis, which is defined as inflammation of the layers of tissue.
Causes: –
Encephalitis is most often caused by a viral infection. Many types of viruses may cause it. Exposure to viruses can occur through:
• Breathing in respiratory droplets from an infected person
• Contaminated food or drink
• Mosquito, tick, and other insect bites
• Skin contact
Routine vaccination has greatly reduced encephalitis due to some viruses, including:
• Measles
• Mumps
• Polio
• Rabies
• Rubella
• Varicella (chickenpox)

Symptoms: –
Some people may have symptoms of a cold or stomach infection before encephalitis symptoms begin.
When this infection is not very severe, the symptoms may be similar to those of other illnesses:
• Fever that is not very high
• Mild headache
• Low energy and a poor appetite
Other symptoms include:
• Clumsiness, unsteady gait
• Confusion, disorientation
• Drowsiness
• Irritability or poor temper control
• Light sensitivity
• Stiff neck and back (sometimes)
• Vomiting
Investigations: –
• Brain MRI
• CT scan of the head
• Culture of cerebrospinal fluid (CSF), blood, or urine (however, this test is rarely useful)
• Electroencephalogram (EEG)
• Lumbar puncture and CSF examination
• Tests that detect antibodies to a virus (serology tests)
• Test that detects tiny amounts of virus DNA (polymerase chain reaction — PCR)
Treatment: –
The goals of treatment are to provide supportive care to help the body fight the infection, and to relieve symptoms.
Medications
• Antiviral medicines, if a virus caused the infection
• Antibiotics, if bacteria is the cause
• Anticonvulsive medicines to prevent seizures
• Steroids to reduce brain swelling
• Sedatives for touchiness or restlessness
Prevention: –
Children and adults should avoid contact with anyone who has encephalitis.
scheming mosquitoes may reduce the chance of some infections that can lead to encephalitis.
• Apply an insect repellant contain the chemical, DEET when you go outside (but do not use DEET products on infants younger than 2 months).
• take away any sources of standing water (such as old tires, cans, gutters, and wading pools).
• Wear long-sleeved shirts and pants when outside, particularly at dusk.

It is first coined by J.Fourier in 1827 is also called atmospheric effect, global warming or carbon dioxide problem. All the IR Radiations do not go to the space. In fact a portion of the radiation re-emitted from earth is not immediately radiated into space rather; it is absorbed by gases such as carbon dioxide that contributes to global warming.
The Green House Effect is a measure of the effect to which this absorption retains heat at the earth surface .Green house means that a building made of glass with heat and humidity regulated by plant.
A Green House is that body which allows the short wavelength incoming solar radiation to come in, but does not allow the long Wavelength outgoing terrestrial Infra Red radiation to escape.
Green House Effect is progressive, warming, up of the Earth’s surface due to blanketing effect of manmade Carbon Di Oxide in the atmosphere.
Green House Effect is the phenomenon due to which the Earth retains heat. Green House Effect means the excessive presence of Carbon Di Oxide, Methane, Nitrous Oxide, Chloro Floro Carbon etc. Blocked in the IR radiation from the Earth surface to the atmosphere leading to an increase in temperature which in turn would make life difficult on earth.
Key Word: – Solar and Infra Red radiations, high and normal Carbon Di Oxide content at atmosphere, short and long Waves, light and heat energy, plants, earths, sun.
Control Measures of Green House Effect:-
Reducing the consumption of fossil fuels.
Depending more on none -conventional renewable source of energy such as solar wind nuclear and biogases energies.
Disposing Green House Carbons as they are formed elsewhere then in the atmosphere .