28 February 2009

Bottle feeding

Posted by Bajali

Although more than half of all North American women breast-feed for at least the first few weeks, many mothers elect to bottle-feed. They should be assured that commercial formulas provide all the essential nutrients and, when used according to the manufacturers' instructions, babies thrive on them. Choosing an iron-fortified formula is recommended. Babies under one year of age should not be given regular cow's milk because it is difficult for them to digest and may provoke an allergic reaction. The cow's milk in most infant formulas is modified to make it easier to digest. Despite this precaution, some babies may require a soy or rice formula.
Generally, bottle-fed babies consume more than breast-fed F': infants do; they may gain weight more rapidly, although the breast-fed babies will eventually catch up with them. On average, most babies double their birth weight in 4 to 5 months, and triple it by the time of their first birthday.
Bottle-feeding requires more work than nursing; bottles, nipples, and other equipment must be sterilized. Some formulas are premixed; others are concentrated or powdered, and must be mixed with sterile water. Formula mixed in advance should be refrigerated, but not longer than 24 hours; after that, it should be dis¬carded. Any formula that is left in the baby's bottle : after a feeding should be discarded; if not, there is a j possibility of its being contaminated by microorganisms entering through

26 February 2009

Antioxidants

Posted by Bajali

Recent research on antioxidant supplementation has yielded conflicting results. But there is no doubt about one thing—eating a diet high in antioxidant-rich foods is a smart choice. There are hundreds of studies linking antioxidant-rich fruits and vegetables to a lower risk of heart disease, cancer, and many other illnesses. But why is eating fruits and vegetables so healthy? Is it due to some specific compounds found in plant products or some special combination of nutrients? Or is it that people who eat lots of fruits and vegetables eat less meat, or that in general they consume fewer calories? In any case, the antioxidant theory merits investigation.
Just as a burning fire needs oxygen, every cell in our body needs a steady supply of oxygen to derive energy from digested food. But consuming oxygen comes with a price; it also generates free radicals, unstable molecules that can damage healthy cells. Free radicals are highly reactive because they contain an unpaired electron, and electrons prefer to pair up. So these free radicals search for a molecule from which they can steal an electron. The molecular victim then goes in search of an electron to satisfy its deficiency and sets off a chain reaction in the body that results in the creation of more free radicals. A molecule that has lost electrons in this manner is said to have been "oxidized."

20 February 2009

Food Additives

Posted by Bajali

For centuries, people have enhanced their foods with various flavorings, preservatives and dyes. But some ingredients on today's food labels can be downright scary.
Few foods reach today's supermarket' free of additives—substances
that do not occur naturally in a food but are added for various reasons. These include preservatives to prevent spoilage; emulsifiers to prevent water and fat from separating; thickeners; vitamins and minerals (either to replace nutrients lost in processing or to increase nutritional value); sweeteners (both natural and artificial), salt, flavorings to improve taste; and dyes to make everything from candies to soft drinks more visually appealing.
In all, North American food processors may use any of about 2,800 additives. Although many people question the safety of these additives, the fact is that their use is governed by stringent regulations. Authorities require extensive studies before an additive is allowed on the market. In spite of this, rare reactions to certain additives are possible. The appropriate use of additives, though, allows us to enjoy history's safest and most abundant assortment of foods.
The most common food additives are sugar, corn syrup, other sweeteners, and salt; they are used both to enhance flavor and to retard spoilage. Other additives offer their own unique health benefits; these include calcium, as well as ascorbic acid (vitamin C), vitamin E, and other antioxidants that prevent fats from turning rancid and may also offer some protection against cancer, heart disease, and other ailments.

16 February 2009

Chinese Restaurant Syndrome

Posted by Bajali

Used as a flavor enhancer, monosodium glutamate (MSG) is a common ingredient
in Asian cooking. It does not actually change the flavor of food, it acts on the tongue to heighten the perception of cer¬tain tastes and minimize others. It masks any unpleasant tastes and brings out agreeable flavors. MSG occurs naturally in dried seaweed; more commonly, it is made from wheat or corn gluten or the liquid waste of sugar-beet refining.
In susceptible people, MSG may trigger headaches or idiosyncratic reactions. These problems, however, are more infrequent than is generally believed. Some people avoid MSG because they fear experiencing "Chinese restaurant syndrome." So much so that restaurants have taken to posting signs declaring "No MSG added."
Numerous studies around the world have failed to prove the existence of this condition. Perhaps the victims of this syn¬drome are reacting to other components in Chinese food. Histamine, tyramine, and phenylethylamine can all cause flushing, palpitations, and headaches, and are found in black beans, shrimps, and soy sauce, which are all common in Chinese cuisine.

14 February 2009

Glow Skin

Posted by Bajali

The best way to keep your skin glowing is Ayurvedic way! The main part of the body which is responsible for giving a glow to your skin is mostly depleted by the creams and the modern lifestyle that we all choose. By nature, our skin has a natural glow which we ourselves spoil it. As we are exposed, some molecules get settled in our skin. These molecules are from the pollution and sun rays. These molecules tend to decrease the glow of our skin by breaking the glow producing portion of our skin. So, as we age, the accumulation of exposure (environmentally) tends to wrinkle our skin and causes cracks. There are two best ways to fight this. One is usage of water now and then. Splash cold water on your face once in a while so that you don’t give a chance for the harmful dirt to get settled in your skin. The other way is to use sun screen lotions that donot allow the harmful UV rays to kill your skin. Early ageing can be avoided by following these tips. Some ayurvedic leaves such as neem, sandalwood, manjishtha, giloy will help for getting a skin that glows.

10 February 2009

Strong legs

Posted by Bajali

Thy is an important part of our body, which makes us to move well and it bares the whole abdominal weight. One must have a strong and firm thy to bet a fit human being. Thy is composed of four muscles namely vastus intermedious, vastus lateralis, vastus medialis and sartorious. We must give proper exercise to these muscles in order to have a strong physic. All four muscles of our thy must be properly giver exercise to give fruitful result. Proper stretching of thy muscles makes it to function well. There are various stretching techniques followed by renowned physical trainers to keep sportsmen’s leg strong.
Leg, being the most important part for sportsmen, they are trained very well to keep it strong and flexible through various physical exercise and stretching. Not only for sportsmen but also for us, leg must be strong and should have capability to withstand more pressure. So we must also try to build strong legs through regular exercises and stretching techniques.

08 February 2009

Mutual Funds

Posted by Bajali

One of the best ways to earn a moderate return by taking safe risk is choosing to invest in a mutual fund. A mutual fund follows an instrument scheme, identifies investors widely, collects money and invests in stocks, bonds, etc. There is not much difference between investing stocks individually by ourselves and through a mutual fund. But the only difference is the professionalism that is involved with a mutual fund. A mutual fund has professionals working with it who analyze the company’s financial statements and invest accordingly. They tend to diversify the risk involved and thus earn huge profits through analysis. Most of us, with the information known to us, invest our excess money into various stocks and bonds according to the knowledge that we have. We lack in professionalism. Mutual funds do give a secure income and the risk involved is also less compared to the risk which we might me facing if invested directly. Thus it is more advisable to go through a recognized mutual fund for investment purposes.

05 February 2009

Gimbaled Navigation system

Posted by Bajali

Two-axis gimbals were in use in China (for carry-ing liquids with less sloshing) around the beginning of the Current Era. Gimbaled inertial navigation systems using feedback control technology were first developed around the middle of the twentieth century, when computers were too slowfor strapdown calculations and too heavy for in ight applications.Gimbalsare nested ringlike structures with orthogonal rotation bearings (also called gimbals) that allow isolation of the inside from rotations of the outside. Three sets of gimbal bearings are sufficient for complete rotational isolation in applications with limited attitude mobility (e.g., surface ships), but applications in fully maneuverable hosts require an additional gimbal bearing to avoid the condition, known as gimbal lock,in which the gimbal configuration no longer provides isolation from outside rotations about all three axes. Gyroscopes inside the gimbals can be used to detect any rotation of that frame due to torques from bearing friction or load imbalance, and torquing motors in the gimbal bearings can then be used to servo the rotation rates inside the gimbals to zero. For navigation with respect to the rotating earth, the gimbals can also be servoed to maintain the sensor axes fixed in locally level coordinates.