Friday, March 26, 2021

WHO says Covid infected Lady Can Do Breastfeeding to Baby! Why?


 It is devastating to see so many individuals to get infected by Sars-CoV-2. Covid-19 has upside down the the lives of many individual and it is so tough to predict how will covid-19 effect a new born baby or the baby in womb.
 
There is is not enough research available which can conclude that Sars-CoV-2 can be transmitted in the womb to the fetus via amniotic fluid or blood or by breast feeding.

There are many women who has given birth to babies after suspected and cured by Sars-CoV-2. 

So does this mean that the virus is present breast milk or amniotic fluid? 

It may happen that pregnant lady infected with with covid-19 may have health issues, premature birth of baby or death of fetus in womb itself.

Breastfeeding is the the cornerstone of any infant and baby for the survival and as a source of nutrients.In general doctor suggest  breast feeding exclusively for at least first six months. This can be later added up with external complementary nutritional foods and supplements. 

But because of covid-19 and pandemic, the concern for babies and the mother both are raised like whether the mother with covid-19 can transmit the virus to the infant via breastfeeding?

Now this decision is recommended on the basis of of complete considerations of not only the risk of transmission of the virus but also the nutritional rate morbidity and mortality associated with breastfeeding. 

According to WHO guidelines and recommendations the mother with suspected or confirmed case of covid-19 infected via Sars-CoV-2 should do breastfeeding. 

WHO recommends mother and baby should remain together while in quarantine throughout the day and night, and practice skin to skin contact including Kangaroo mother care especially immediately after birth. This should be practice independent of whether the mother or baby have suspected or confirmed for covid-19.


To prove this statement WHO has undergone a systematic review of evidence in which the procedures of Cochrane handbook for systemic review of interventions was carried, using the latest research done on 15th may 2020, identify the studies including mother suspected with or confirmed with Sars-CoV-2.

According to the records of WHO the research was conducted on Cochrane Library, EMBASE (OVID), PubMed (MEDLINE), Web of Science Core Collection (Clarivate Analytics) and the WHO Global Database.

The total number of 12,198 records were retrieved, out of which 153 records evidenced the pre or post pregnancy cases in which the mother had covid-19 which included full text review.

A total of 46 mother-infant who had suspected case of Sars-CoV-2 infection,  had breast milk samples tested for COVID-19 out of which 13 infants were tested positive for Sars-CoV-2. Breast milk samples from 43 mothers were negative for the COVID-19 virus while samples, however from 3 mothers tested positive for viral particles by RT- PCR.  Among the 3 infants whose mother's breast milk tested positive for virual RNA particles, not live virus, one infant tested positive for COVID-19 but infant feeding practices were not reported. The two other infants tested negative for COVID-19; one was breastfed, and the other newborn was fed expressed breast milk after viral RNA particles were no longer detected. 

In the single child with COVID-19, was unclear that from which route or source the baby was infected, through breast milk or droplet from a close contact with the infected mother.

A preprint article shows secretory immunoglobulin A (sIgA) immune response against the Sars-CoV-2 was found in 12 of 15 breast milk samples from mothers with COVID-19. The implications of this finding on the effect, duration and protection against COVID-19 for the child was not addressed.

 Note:  The above analytical data has been collected from official WHO website, any information provided here do not claim for any proof or any practical orientation.


Saturday, October 31, 2020

Are You Stressed Out? Then convert it To Electricity! Use Your stress Wisely.

 
We work so hard for our dreams and sometimes we just fails hundreds of times and gets frustrated and stressed out and start finding new ways. Imagine what if we had a super power and we could convert this stress into something else which will help us.

Now do not imagine, because we can actually do that!
WE CAN CONVERT OUR STRESS INTO ELECTRICITY! Amazing right. Lets go deep.

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The scientists has develop a new organic material that can turn stress into electricity. The team from Empa, the Swiss Federal Laboratories for Materials Science and Technology, created- thin new substance. It's a rubbery material that generates electricity dependant upon movement of person. This flexible, organic, thin rubber material, properties that aren’t usually associated with power plants or sensors. But a new material developed by Empa researchers is exactly like that a thin, organic, flexible flim that can generate electricity when stretched and compressed. This rubber film could be incorporated into control buttons, clothing, robots or even people, and monitor activities, record touches or generate electricity when stressed to power implanted devices such as pacemakers, just as an example. 

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Physics behind its Working:

Here, the Piezoelectric Effect is employed. Piezoelectricity is the electric charge that accumulates in certain solid materials in response to applied mechanical stress. The word piezoelectricity means electricity resulting from pressure and latent heat. This concept might sound unfamiliar to many, but millions of people have seen the effect in practice. 


 

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This effect is used in sound pick-ups on analogue record players, for instance: the needle is guided through the grooves in the record in such a way for generation of mechanical vibrations. In a piezoelectric crystal, these vibrations are converted into electrical impulses, which can be amplified and transformed into sound waves.

For a long period of time, the piezoelectric effect was only known for crystals. As these are heavy and solid, the effect could only be used in certain limited applications. However, Empa researcher Dorina Opris and her colleagues have now succeeded in giving elastomers piezoelectric properties. Nevertheless, the new material is not easy to produce. 

Preparation of the material:

The rubber is a composite material made of polar nanoparticles and an elastomer (silicone in the prototype). First of all, Yee Song Ko, a PhD student at Empa, has to shape those two materials before connecting them which yields a thin, elastic film, where the polar moieties of the nanoparticles are still randomly oriented.

In order to create a piezoelectric material, Song Ko has to introduce an internal polarization using a strong electrical field. To achieve this, the film is heated until the glass transition temperature of the nanoparticles has been exceeded and they change from a solid, glassy state into a rubbery, viscous one. Under these conditions, the polar moieties are oriented by the electrical field. The orientation achieved is eventually frozen by cooling the material to room temperature.

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While the plastic-looking substance doesn't seem anything we've seen before with the effect, many other researchers praise it for pushing the limits of previous understanding of the piezoelectric effect. The biggest downside to this material? As with most other novel materials, it can be incredibly difficult to reproduce and upscale at a reasonable cost. 

Future of Stress:

Ultimately, researchers hope that the material could be useful in every facet of life from robotics to clothing to medical technologies that people use to survive like a pacemaker. The material would allow pacemakers to power themselves without the need for invasive procedures to change the batteries. 

This material could probably be used to obtain energy from the human body, we could implant it near the heart to generate electricity from the heartbeat, for instance. 

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One of the most exciting uses of this technology could be in the advancement of soft robotics and allowing robots to "feel" their surroundings. The material would be able to send impulses to the device for it to be "understood" by a robotic system. 

However, it's not just the film that could be used to teach robots to feel pain. Researchers from Leibniz University of Hannover in Germany developed an artificial nervous system that programmed a robot with the "insights from human pain research."

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