ARAVINDHAN

In human being, sexual reproduction is achieved by the fusion of two cells, a sperm which is a male gamete and an egg which is a female gamete. If a sperm is fertilized by an egg, it will results in a combination of generic material called DNA from each parent and an unique individual is created. Thus sexual reproduction results in an infinite variety of offsprings.
For women, ovulation occurs every month between consecutive periods. Ovulation is the process in which the ovum sheds from the ovary. Usually in the women body, the enlargement of ovarian follicle occurs and it reaches the surface of the ovary. As a result, the rupture of theca and graafian follicle occurs. Hence the shedding of ovum from ovary occurs. Now the ovum started moving towards the fallopian tube. This phase is called Luetal phase. It is achieved by Leutenizing harmone. Hence the name. It usually occurs at every second week after menstruation. When intercourse is done in this period, out of billions of sperms entered in to the vagina, only one sperm unites with the egg and this is called fertilization. As a consequence fertilization membrane is formed and it surrounds the egg. Hence polygamy, which is the union of many sperms with egg is avoided. Finally a single diploid cell called zygote is produced. After fertilization billions and billions of cells are produced from egg. The cell started moving and when the uterus is reached, the outer cells develop in to a placenta and the inner cells starts developing in to baby.

Some people are suffering from a serious fat problem. Obesity and the deposition of fats inside the body are the most common problem for most of the individuals. Usually certain of fats are always present inside the human body naturally. The amount of fatty acids present in the food is also responsible for the deposition of fat inside the body.
But if the amount of fat inside the body increases it will results in adverse effects. Liposuction is a technique by which the unwanted and excessive fats are removed by means of surgery. When this process was developed it was not that much successful. But due to the constant research of many doctors, a new and wonderful technique called tumescent liposuction was explored. The one of the important advantage of this process is the reduced blood loss. Usually any direct surgery has profound and uncontrolled blood loss. Here blood loss is controlled. The word Tumescent means swelling. As the name indicates this process is achieved by swelling technique. At first the fat tissues which are to be removed is made to swell. The swelling is achieved by injecting lidocaine and epinephrine in the fat tissues which are to be removed through a narrow passage. Before doing this local anesthesia is given to the patient. Here general anesthesia is not used. This is because from the experiments it is revealed that, the usage of direct anesthesia will results in adverse effects. When swelling is achieved in the fat tissues, obviously it becomes definite and hence the fat tissues are easily removed.

Of course death is common for all living organisms, it makes us perplexed when occurs unexpectedly. No one knows when the death will come. But if the death comes for an infant, definitely we will be dumbfounded. Sudden infant death syndrome simply called as SIDS is one such a kind. As the name indicates it immediately causes the death in an infant without any symptoms of diseases or any other abnormalities. It usually occurs in a newly born infant or a child whose age is less than twelve months.
Many researches are going on this SIDS, but in vain. Even the medical examination of the child which died because of SIDS, does not reveal any reasons for death. SIDS occurs suddenly and it was found that, SIDS is not the one that existing from the birth or it is not due to the minimal carriage period, which is the time period between conception and birth. Recent studies revealed that infants are more prone to SIDS if their parents are drug addict or if they are born to a teenage mother. After the child birth, if they are not taken care properly, like if they are exposed to smoke, if their weight is not checked SIDS may occur. One of the important causes for SIDS is sleeping positions. The infant used to sleep by back is less prone to SIDS than the one sleeps by stomach. Lack of nutrition is also the cause for infant’s death. However SIDS occurs without any symptoms if the above said causes are avoided the chance of death may be reduced. Some special type beds are available now a days to provide good and healthy sleep for an infants, though the exact preventive method of sudden infant death syndrome was not yet found.