Preclamptic Pregnency

This is a condition that can lead to suicides & death in one in ten pregnency. The primary sign of the disorder are high blood pressure, protein in the urine & swelling known in the past as Pregnency induced hypertension. Babies born to preclamptic women face a significantly highe risk of dying or developing life long disabilities than healthy mother babies.

In a normal pregnency the maternal blood vessels to the area of the uterus where the pancake like placenta attaches to the urine wall undergo stunning transformation. To supply the uterus & placenta with a sufficient flow of blood, these blood vessels called spiral arteries increase four fold in diameter. There is an equally diametric increase in the mother’s total blood volume which can expand by as much as 50% during the course of pregnency.

It was recognised in the 1960’s that in preclamptic women the blood vesells to the uterus generally donot undergo the same transformation. The spiral arteries load much like they do when the women is not pregnent. A clear indication that placenta is not getting adequate supply of blood. Speral arteries in precalmptic women remain small is having lot of theories. Lot of researchers are giving lot of data but still it is remaining as a mystery.

The Electric Scooter – Vectrix

More & more people around the world are switching to alternate technology to protect the environment. The birth of electric scooter Vectrix in UK is revolutionizing the auto industry. The price tag may be high at 7000 pounds & may come down after several years. The vectrix sccoter has a horse power of 300 cc (29 bhp), the torque of 900 cc bike, the kilowatt rating of 750 cc (21kw). The vectrix has a regenerative throttle with the grip upwards & downwards. Twist upwards at a steady rate & the bike reverses, twist upwards as you are riding along and it acts as a progressive brake as well as sends a charge back to the battery like the ” energy capture braking technology”. Coming to the formula one next season, throttle’s fly by wire technology commonly used in cars. Currently in yamaha’s R1 & R6 and APRILLA’S shiver. The battery pack nickel metal hydride lies across the bottom of the chasis. The brushless DC radial air gap motor produces max torque of 65 nm (peak) and 22 nm continuos. It is the beginning of wonderful eletric scooter era.

Understanding of AIDS Disease & Development of Vaccine for it

Although scientists are trying to understand the HIV virus from past 27 years. They are still unable to understand about HIV and its infections. Scientists know very little about HIV. They commonly know that HIV destroys Human body immune system. The HIV – 1 intially damages macrophagus, a type of immune cells it bonds through a molecule known as GP120, a (viral surface glycoprotein) to the protein molecule [CD4] on the macrophagus surface. Later it enters T-cells, another type of immune cells. This leads to the collapse of human immune system of body which is called the AIDS (acquired immune deficiency syndrome).
The happened immune system leaves the body defenseless and suscptible for the attack by all the other diseasrs causing micorbes & cancer.

All the above said theories are research carried out by scientists are just a belief. We need to understand the HIV more as what we have understood is very less. There is a need of further research to understand HIV, until we understand HIV, the possibility of finding a vaccine is a distant dream.