FG News


13 Feb 17

Researchers have constructed and demonstrated a small voltaic cell which is sustained by stomach acids. This ingestible cell can generate sufficient power to run small drug delivery devices or small sensors which can dwell in the gastrointestinal tract for a long time.

This offers a longer-lasting, lower-costing and safer alternative to the currently used traditional batteries. The study has been published in the journal Nature Biomedical Engineering.

They derived inspiration for designing this from a lemon battery, a simple type of voltaic cell. This consists of a two electrodes stuck in a lemon. The small electric current between the electrodes is carried by lemon’s citric acid content. 

To reproduce this method, they attached copper and zinc electrodes to the surface of an ingestible sensor. The zinc emits ions into the stomach acid to power the voltaic circuit. This produced enough current to power a 900-megahertz transmitter and a commercial temperature sensor.

"A big challenge in implantable medical devices involves managing energy generation, conversion, storage, and utilization. This work allows us to envision new medical devices where the body itself contributes to energy generation enabling a fully self-sustaining system," says Chandrakasan, another co-author.

Content: https://www.sciencedaily.com/releases/2017/02/170206111916.htm 

Image: http://www.ordertakingphilippines.com/blog/medicines-to-go/

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Origin and Growth of Women’s Football in India

14 Dec 17

Women’s football in India is growing more and more popular day by day. In India, women’s football team was administered by Women's Football Federation of India (WFFI) from 1975 until the early 1990s. Later, it was absorbed into the All India Football Federation (AIFF). This team represents India in women's international football competitions. The women’s football has not had the kind of start as the men’s game has. It has also not seen that kind of expansion in the country as its male counterpart. This may be attributed to the impassive attitude of the AIFF and its inability to raise sufficient funds. The game has its early pioneers in the state of West Bengal. In the India women's football championship, women’s national competition is played on a state vs. state basis.

For the junior teams, there are other national championships such as Junior Girls National Championship (for under 19s) and Under-17 Girls National Championship. In June 2009, the women’s game saw its lowest point, when FIFA delisted the side from world rankings for being inactive for more than 18 months. The aim of the AIFF for women's football from 2014 to 2017 was to improve the ranking of the Indian senior team, start a professional women's league by 2015, and to qualify for U19 as well as U16 versions of the AFC championships. Some of the internationally recognised faces in women’s football are Chitra Gangadharan, Jaanki Kotecha, Sujata Kar, Alpana Sil etc.

By: Bhavna Sharma

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Human Dispersal Out of Africa- The Revised Story

14 Dec 17

There are numerous theories of human evolution and dispersal. One such model is the “Out of Africa Model”. According, to it about 60,000 years ago, the modern humans evolved in Africa and then dispersed in Asia and reached Australia in a single wave. However, this model seems to be reversed by a recent research conducted by Max Planck Institute for the Science of Human History and the University of Hawai'i at Manoa.

This research establishes that prior to 60,000 years ago, humans left Africa multiple times. They interbred with other hominins such as Neanderthals and Denisovans, in many locations across Eurasia. This research was conducted by making use of fossil identification techniques and technological advances in DNA analysis. The research also found that all present-day non-African populations evolved from a single ancestral population in Africa approximately 60,000 years ago. This shows that around 120,000 years ago, there were multiple, smaller movements of humans out of Africa. It is estimated that the present day non-Africans have 1-4% Neanderthal heritage, while another group has estimated that modern Melanesians have an average of 5% Denisovan heritage. This establishes that modern humans had numerous interactions. This also confirms that the spread of material culture is more complex than estimated. The new research has put forward many questions that need answers. The authors wish to conduct new researches in many areas of Asia where none has been done till date. These researches prove useful in filling the gaps in evolutionary records.

By: Anuja Arora

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A Not Out Cricket for Kids in Australia- An Initiative to Make Sports More Interesting

13 Dec 17

The Australian Cricket has given many relaxations to the rule book for young players in an initiative to use the fun of backyard cricket as the motivating factor of its junior program. Various steps have been taken in this regard. Giving a try to make the game little easier the junior teams are made smaller and pitches are made shorter.

Most of the cricket specialists think that backyard cricket rules are the better way to teach children the technique of game. The changes have been done under the guidance of Dr. Renshaw, father of Australian batsman Matthew Renshaw. He says that there should not be limitation of time or overs to play. The kids should play till they want to play in their natural way. The more they will play the better player they will become in future. Cricket Australia has taken the initiative to make the game more enjoyable so that kids do batting, bowling and fielding for longer periods. Under this new format of junior cricket, Games are made shorter, by cutting from 30 to 20 overs, in a 40-metre boundary of ground. Now it is made sure that everyone is given a fair chance to bat, bowl, field, and wicket-keeping every week. These all changes are commendable but the most interesting part is that, in this new format nobody will be declared out. Children will be made familiar with the rules and real techniques of cricket with their growing age.

By: Anita Aishvarya

Content: www.abc.net.au

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Digital Devices- A Bane to Children’s Sleep Quality and Quantity

13 Dec 17

Smartphones have become a part and parcel of our life. Even children can not be away of digital devices as they play various video games in that. A latest study has proved that kids who are prone to watch TV or play video games before going to bed got an average of 30 minutes less sleep than those who did not.  At the same time the children who used their phone or computer before sleeping were reported to get averaged an hour lesser of sleep than others. The new research has found that the digital devices if used before bed contribute to quality of sleep and nutrition problems in kids.

They feel more fatigue in the morning time. Watching much TV, playing games on smartphones, or using computers all lead to higher body mass indexes (BMI). There are several ill effects of using different technologies and digital devices just before going to bed. After analyzing the results now it is recommended from the American Academy of Pediatrics (AAP) that there must be fixed screen time for children. It has been recommended by them that parents should be careful while checking technology use. They should follow some rules like: guiding the children to put away their all digital devices during meal times and keeping phones away of bedrooms during sleeping time. They must not be made addicted to technological equipment at any cost that have all the worse effects on eyes, heath and mind as well.

By: Anita Aishvarya

Content: www.sciencedaily.com

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The Glorious Journey of Nirupama Sanjeev

12 Dec 17

Nirupama Sanjeev is a well known Indian name in the history of tennis. Nirupama, who was born on 8 December 1976 in the Southern Indian town of Coimbatore, is a retired Indian professional tennis player. She was the first woman tennis player from India. She began to play tennis at a tender of 5 and derived inspiration from her brother. Her father, K.S. Vaidyanathan, acted as her first coach at the start of her career.

At the age of 13, she won her first National title in under 14 age group. In 1991, at the age of 14, she won the National Women's title. Nirupama also won the National Women's title in 1992–1996. She stepped into professional tennis at the age of 18. Nirupama was then coached by David O Meara. In 1998, she became the first Indian woman in the modern era to feature and win a round at a main draw Grand Slam, in the Australian Open. At the 1998 Bangkok Asian Games, she also backed a bronze medal in mixed doubles. She took retirement from the wonderful game of tennis in later 2000’s. In 2010, she made her comeback as a 33 year old and played for India in the Commonwealth Games 2010 and in Asian games in Guangzhou. Post retirement, she has been a part of the expert commentary team for ESPN-STAR sports. In the Bay Area, California, she also runs a tennis coaching camp.

By: Anuja Arora

Content: en.wikipedia.org

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