Story of Upamanyu
Sunday, July 21, 2024
ON THE OCCASION OF GURU POURNIMA
Saturday, July 20, 2024
ARTICLE
Palm Oil In India And Its Health Effects
Oil palm is a crop that flourishes in the same regions as some of the world's most precious rainforests and appears in many food and household products.
Palm oil has emerged as the main global source of vegetable oil, forming nearly 33 per cent of the world's production mix. Palm oil is in nearly everything – it's in close to 50% of the packaged products we find in supermarkets, everything from pizza, doughnuts and chocolate, to deodorant, shampoo, toothpaste and lipstick. It's also used in animal feed and as a biofuel in many parts of the world
Indian Palm Oil Market
According to WWF, India is the world's largest importer of palm oil, driving 23 per cent of total global demand from plantations in Indonesia and Malaysia. Palm oil is the most consumed edible oil by volume in India, with a share of ~40%, followed distantly by soybean and mustard oils. Palm oil market size in India was valued at USD 5.16 billion in 2015. Increasing demand for edible oils owing to the burgeoning population and improving economic conditions is anticipated to remain the key growth driving factor over the forecast period. Edible oil emerged as the dominant application segment in India. Palm products are widely being utilized as cooking medium in India as there is limited availability of oilseeds, and it's cheaper pricing.
Biochemical Composition of Palm oil
The palm oil mainly contains palmitic acid, which is a saturated fatty acid. Other fatty acids are myristic, stearic, linoleic acid. Palm oil also contains vitamins, antioxidants and other phytonutrients.
Is palm oil bad for you?
Palm oil has a high saturated fat content, which can be harmful to cardiovascular health. However, one study (Odia et al., 2015) found that, when consumed as part of a balanced diet, “Palm oil does not have incremental risk for cardiovascular disease.”
What are saturated fats?
From a chemical standpoint, saturated fats are simply fat molecules that have no double bonds between carbon molecules because they are saturated with hydrogen molecules. Saturated fats are typically solid at room temperature.
How do saturated fats affect health?
Replacing foods that are high in saturated fat with healthier options can lower blood cholesterol levels and improve lipid profile environment effect. To produce palm oil, the fruit is collected from the trees, which can live an average of 28 to 30 years. To keep up with the incredibly high demand for the cheaply produced oil, acres of rainforest are being cut down - leading to a loss of animal habitat for endangered species.
Friday, July 19, 2024
A FORM OF ENERGY
Sound energy
Sound energy is a form of energy, which is produced when matter vibrates. More technically speaking, sound is produced when the kinetic energy that causes the vibration of an object or substance is transferred through matter in a wave-like formation. Typically, the energy in sound is far less than that in other forms of energy.
When a sound wave travels through air or water, the wave passes through the air or water molecules, pushing some molecules close together while parting the others, thereby causing them to vibrate. Eventually, as the wave travels, even the air inside your ears starts vibrating—that’s when you begin to perceive sound. Thus there are two different aspects to sound—the physical process that uses kinetic energy to produce sound energy and the secondary or physiological process that happens inside our ears and brains, which converts the sound energy into noise or voices. The first person to discover that sound needs a medium to travel through was English scientist Robert Boyle. He set an alarm clock ringing inside a large glass jar and while the clock was still ringing, he slowly sucked out all the air with a pump. As the air gradually disappeared, the sound died, proving that sound needs a medium to travel through.
HOW IS SOUND INTERPRETED? How a person interprets the sound depends on how close the person is to the source of sound. The further away the person is, the less the sound vibrations and thus the intensity of sound is much lower. Physiologically, the entire process of hearing a sound takes place in the ear. There are approximately 15,000 hair cells in the human inner ear, which are divided into two types—inner hair cells and outer hair cells. The inner hair cells are responsible for detecting sound and sending information about it to the brain, whilst the outer hair cells act as ‘amplifiers’, meaning that the ear can pick up even the quietest of sounds and can pick one sound out from others. Inner hair cells are lined up in a long row along the inner ear (which is essentially a tube filled with fluid) and each hair cell detects sounds of a different frequency. Hair cells nearest to the middle ear detect highpitched sounds, and then, as they get further and further away from the middle ear, they gradually detect lower and lower pitched sounds.
Humans can hear frequencies between 20 hertz and 20,000 hertz, which decreases as they age. Dogs can hear vibrations higher than 20,000 hertz but not below 40 hertz, which is why humans cannot hear dog whistles. Sometimes, loud noise can cause pain to people. This is called the pain threshold. This threshold is different from person to person. For example, teens can handle higher sound pressure than elderly people. People who work in factories tend to have a higher threshold because they get used to loud noise.
HOW SOUND IS USED: Sound is used for numerous things apart from communicating information.
● An experiment has proved that plants grow faster if you play classical music or talk to them every day. However, in 1962, Indian researcher Dr T C Singh deduced that rock music does not increase the growth levels of a plant, which showed that plants also had their own likes and dislikes.
● Researcher Robert Monroe discovered the effect of sound on human consciousness. Different kinds of music, beats and waves can affect the human mood.
● Doctors use ultrasound to create digital images of the body’s organs.
● Researchers at Princess Grace Hospital in London have been working on a system that could destroy cancer cells with sound.
● Peter Davey, a 92-year-old saxophone player in New Zealand, has invented a device that boils water using sonic waves.
● Bats and dolphins use high frequency sounds to see their surroundings. They create a mental picture of the area they are in by listening to how sound waves bounce off the environment. These days, many blind people are learning to do as dolphins and bats, by clicking their tongues and listening for the reverberations to understand their surroundings.
● Yoshiki Hashimoto, of Tokyo’s Kaijo Corporation, has developed a machine that lifts objects and moves them by acoustic levitation using supersonic waves. It is said that this could be used for weaponisation too.
QUICK FACTS
● Sound produces a relatively low level of energy when compared to other forms of energy.
● Because sound produces such a low level of energy, it is not used to create electricity.
● If the vibrational waves of a medium change, the sound it produces will also change.
● Sound is measured in decibels and pascals instead of the traditional unit of energy measurement, the joule.
● The intensity of sound energy is usually measured using the perception of a normal hearing person.
● The measurement of sound energy is related to its pressure and intensity.
● We are able to hear different sounds because as the sound (vibrations) enters our ear, the ear also vibrates.
● Dogs’ ears are more sensitive than human ears, which allow them to hear sounds that humans cannot hear.
● There is no sound in space because there is no medium for sound to travel through.
● Sound travels through a solid much faster than through air.
● Sound travels faster through a liquid such as water than it travels through air.
● The study of sound waves is called acoustics.
● Flies cannot hear at all.
● When whales communicate with each other underwater, their sound can travel up to 800kms into the ocean.
● The speed of sound in dry air at 20 degree Celsius is 1234kms/hr.
Thursday, July 18, 2024
A PRECIOUS RESOURCE
Wednesday, July 17, 2024
STONY FRUIT
Apricot
The apricot (Prunus armeniaca) is a member of the rose family (Rosaceae) that also includes the plum, peach and cherry. It is a stone fruit that develops from self-pollinating white flowers. A native of north eastern China, where it was discovered growing wild on the mountain slopes, the fruit was introduced to Persia and Armenia by Chinese silk traders. It then had a long history of cultivation in Armenia, which gave it the name Prunus armeniaca orArmenian plum. Alexander the Great is believed to have taken the apricot to southern Europe and introduced it to Greece in the 4th century B.C. From here, it went on to Rome. The Romans then popularised the fruit all over their empire. By the mid-16th century, the apricot had gained respectability and could be found in the gardens of noblemen throughout Europe. European settlers carried it to other parts of the world, and by the 18th century, apricots were growing in orchards in the USA, South Africa, New Zealand and Australia.
Today, the world’s leading apricot producers are Turkey, Iran, Italy and France. In India, the fruit is grown commercially in the hills of Himachal Pradesh, Jammu and Kashmir, Uttar Pradesh and to a limited extent in the hills of the north-east.
The apricot tree is small to medium-sized, ranging in height from 10 to 25 feet, with a spreading canopy. It starts bearing fruit at the age of 5years, attains full maturity at 7 to 10 years, and continues to yield fruit for about 30 to 35 years. The leaves are oval with pointed tips and finely serrated margins, dark green on top and yellowish green beneath. Flowers are white to light pink in colour, and grow singly or in pairs. The fruit has a soft and downy skin, ranging in colour from pale yellow to red, and may be round or oval.
A highly nutritious fruit, the apricot is rich in vitamin A, vitamin C, potassium, iron, calcium, and dietary fibre. It is an excellent source of beta-carotene, an antioxidant that plays a key role in fighting disease. An additional benefit is that it is low in fat, calories and sodium.
The apricot is an extremely versatile fruit that may be eaten fresh as it is or cooked, dried, canned or frozen, and served in numerous ways in sweet or savoury dishes. It is processed into jams, jellies, beverages, sauces and candybars and used in numerous desserts such as cakes, pies, tarts, ice-cream, smoothies, sorbets and milkshakes. In Turkey, the flesh is dried and made into thin sheets, which are melted down later for use in cooking. In the Middle East, apricots are used to add sweetness to spicy dishes like pilaffs. In South Africa, the fruit is salted, sun-dried and then pressed in sugar to make an unusual preserve called meebos. In India, khubani ka meetha, a rich dessert made of dried apricots and cream, is a popular delicacy in Hyderabadi cuisine, commonly served at weddings. Apricot seeds or kernels are used as a low-cost substitute for almonds in confectionery. They are used likewise in amaretto, an Italian liqueur, and biscotti, a type of biscuit popular in Italy.
Apricot oil, which has a softening effect on the skin, is used in cosmetics and medicines. The leaves are used to make dye. Apricot wood is handsome and durable, and is used to make agricultural implements.
Tuesday, July 16, 2024
COURSES AND CAREER IN BUSINESS AND TRADE
Monday, July 15, 2024
SEVENTH MONTH OF THE YEAR
He conquered Gaul (what is now part of Italy, France, Belgium, and the Netherlands), changed the structure of the Roman government into a dictatorship, was assassinated in legendary fashion. Caesar is responsible for the year having 365 days, and for the existence of a leap year every four years.
July comes between June and August. The halfway point of the year is either on July 2 or in the night of July 1-2.
July always begins on the same day of the week as April, and additionally, January in leap years. July does not end on the same day of the week as any other month in common years, but ends on the same day of the week as January in leap years.
It is the seasonal equivalent of January in the other hemisphere. In the North, it is summer and in the South it is winter.
In the Northern Hemisphere, July is often the warmest month of the year, and major sporting events and music festivals are held around this time. In the Southern Hemisphere, it is a winter month, with the coldest-recorded temperature having been measured in Antarctica in this month.
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