In Today’s News:
- Gravitational waves
1. Gravitational waves
Gravitational waves produced by the collision of a neutron star and a black hole have been detected by scientists for the first time.
Prelims GS – Science & Technology
Gravitational waves:(2019 Prelims Question)
- Gravitational waves are ‘ripples’ in space-time caused by some of the most violent and energetic processes in the Universe.
- Gravitational waves travel at the speed of light (186,000 miles per second).
- These waves squeeze and stretch anything in their path as they pass by.
- The most powerful gravitational waves are created when objects move at very high speeds. Some examples of events that could cause a gravitational wave are:
- when a star explodes asymmetrically (called a supernova)
- when two big stars orbit each other
- when two black holes orbit each other and merge
- In 2015, scientists detected gravitational waves for the very first time.
- A very sensitive instrument called LIGO (Laser Interferometer Gravitational-Wave Observatory) was used to detect.
- These first gravitational waves happened when two black holes crashed into one another. The collision happened 1.3 billion years ago.
Following a 70-year effort, China has been awarded a malaria-free certification from WHO.
Click here to know more on the WHO website.
Prelims GS – Science & Technology
- Malaria is caused by Plasmodium parasites.
- The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called “malaria vectors.”
- There are 5 parasite species that cause malaria in humans, and 2 of these species – P. falciparum and P. vivax – pose the greatest threat.
- The best available treatment, particularly for P. falciparum malaria, is artemisinin-based combination therapy (ACT).
- Antimalarial medicines can also be used to prevent malaria.
- For travelers, malaria can be prevented through chemoprophylaxis, which suppresses the blood stage of malaria infections, thereby preventing malaria disease.
- Since 2012, WHO has recommended seasonal malaria chemoprevention as an additional malaria prevention strategy for areas of the Sahel sub-region of Africa.
- The strategy involves the administration of monthly courses of amodiaquine plus sulfadoxine-pyrimethamine to all children under 5 years of age during the high transmission season.
Click here to view the Courtesy: WHO website.
Union Health Ministry’s National Telemedicine Service – eSanjeevani has crossed another milestone by completing 7 million (70 lakh) consultations.
Click here to view the official PIB release.
Prelims GS – Governance
- National Teleconsultation Service of the Ministry of Health and Family Welfare is the first of its kind online service offered by a country government to its citizens.
- National Teleconsultation Service aims to provide healthcare services to patients in their homes.
- eSanjeevaniOPD is based on eSanjeevani – Government of India’s flagship telemedicine technology developed by the Centre for Development of Advanced Computing (Mohali).
- eSanjeevaniOPD is a patient-to-doctor telemedicine platform and provisions health services to the public in the confines of their homes.
- eSanjeevani telemedicine system is being deployed nationally for the Ministry of Health & Family Welfare at 155,000 Health and Wellness Centres under the Ayushman Bharat Scheme of the Government of India.
Click here to view the official website of e-Sanjeevani.
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