Monday, April 27, 2020

Masters of Sex


I have heard many crazy stories about scientific research and discoveries from fellow researchers during my PhD days in IISc and I am so surprised that I did not hear about the research work by Masters and Johnson. Their research journey was made as a television series called "Masters of Sex" loosely based on Thomas Maier's biography "Masters of Sex", and aired between 2013 and 2016. Now it is available in Amazon prime.
Their research is about wiring up the humans and record their response during various sexual acts. Crazy huh!! The year was 1957 and US was still a conservative society. 
This television series speaks beyond their research journey and explores how their own life was affected/influenced because of their research work. It subtly touches upon feminism, homosexuality, civil rights and Vietnam war. The television series was well made and can keep you at the edge of the seat many times. The actors did an amazing job. Sets and cinematography was excellent. It was very well glued with the content. The television series was fictionalised at few parts to protect the identity of living persons. 
For sure, the research work itself is an interesting thing to me. You can find how the initial curiosity of Dr. Masters on "what woman finds pleasure during various sexual acts!!!" led Masters & Johnson to treat sexual dysfunction couples in their later career. Then you can notice the two sides of the coin though it is not explicitly mentioned. On one side, Dr. Masters' obsession on his research work and his attempts to win his love over Mrs. Johnson. On other side, Mrs. Johnson's passion to pursue some kind of research work despite of her lack of qualification and her struggles not to jeopardize her professional life due to her personal life. 
This is purely my opinion. I too believe that Mrs. Johnson never loved Dr. Masters though they two got married and lived for 20 years. Dr. Masters and Mrs. Johnson were like work-couples. 
It is worth watching!!!! Now time to read the book 
Here is a snippet of true story: https://www.youtube.com/watch?v=U8BlIJVagJ0
I advise you to read the true facts after watching the television series otherwise you may lose the thrill.
        

Wednesday, March 25, 2020

Preventive measures for Coronavirus


What we should do now as an individual?
  • Maintain social distancing
  • Have healthy diet to maintain your immune system
  • Stop your maids, cooks and servants but not their pay
What more we or our government can do?
  • Create awareness about “Social distancing” through celebrities like actors/sportsperson and play it repeatedly in all television channels.
o   Below is some nice content on “Social distancing” but with unpopular faces which can be made with popular faces like actors/Sportsperson and play it repeatedly in all television channels.
  • Government can set up hotlines with the help of few Television channels and disaster management experts to provide solutions for the problems that people face on day to bay basis while maintaining social distancing. Film industry people or sportsperson participating in such shows along-with the experts also helps people to watch such shows.
o   When we try to maintain social distancing, many do not know how to deal the situation which led to panic situation. For example, when the government locked down the borders, there was a huge rush for the people to reach their hometowns. People gathered in the bus stands and supermarket shops. The whole idea of social distancing fails here. At the same time, many Paying-Guests are getting closed. One solution I can think of is: May be the government should allow limited buses and trains to operate with half of its capacity so that passengers can maintain some distance from each other. The passengers should also be instructed to be in self-quarantine or the complete family to be under home-quarantine after reaching their hometown. Ask your neighbours/அண்ணாச்சி-கடை to help you with grocery to be delivered at your door step. Etc.....
  • We may require many isolation rooms and not necessarily require medical facilities. Isolation rooms should give a sense of comfort to people so that people do not panic on hearing the word “isolation rooms”. We might need isolation rooms in the future as well, as soon as the borders are opened across countries. It is better to be prepared.
o   Hotels and Paying-Guests can offer sophisticated isolation rooms (provided with proper toilets cum bathroom, hygienic food and internet connection) at a nominal cost.
o   Simple isolation rooms can be quickly built in big grounds, auditoriums and marriage halls.
What Researchers/Technologists/Engineers are doing and how you can contribute?
Few interesting inventions that I came across:
  • Suits for persons: 
                                             
  • Mechanical Ventilator designs:
                                        

                                              

  • In-helmet PAPR for delivery personnel: (You can find bunch of them in internet. I have provided one of the links below)
                 

Check out LinkedIn for more inventions. Allow your imagination to solve our problems. However, none of these things will not be available tomorrow. So still “Social distancing” is important till any of these inventions comes to market or cure to disease is found.
Beware of scams
Few scammers are looking for opportunities. So beware of those as well. Please check the authenticity of the news,data or person visiting you. Please ask for ID card if any government officials visit your doorstep.

Tuesday, March 24, 2020

"Coronavirus" and the concept of "Social distancing"



I was surprised that few of my friends have misunderstood the way "how Coronavirus spread" and the concept of "Social distancing". So I thought of posting this.
Information about Coronavirus and the concept of "Social distancing"
The following link https://www.youtube.com/watch?v=BtN-goy9VOY explains in a very precise and concise way (<10 mins) about the Coronavirus, how it spreads and how social distancing would help us to fight this outbreak. Don't be worried if you don't understand the first 4 minutes of the video because it can be too technical for few people but hang on till the end of this video.
The below websites are good to know the statistics by country-wise:
It is not just the doctors and bioscience researchers are studying about this virus and trying to develop the medicines to cure the disease. Quite a few Engineers and Technologists have also put their heads into it. One interesting invention that I read: 
Allow your imagination to solve our problems. However none of these things will not be available tomorrow.
India’s position
As far as India concern, I feel the government is doing a great job. But that won't be suffice. We as individuals also should act responsibly for at least next one month. Indians who don't have foreign travel history are also equally responsible to spread the virus at this point. It would be great to maintain social distancing even among your family members within your home. People who are returning to their home towns from cities should confine in a room of your house for at least 14 days to avoid spreading it to your parents or family members whose immunity is compromised or be under home quarantine as a family.
India being the highest population density and do not have proper health care facilities might see more number of deaths if we allow to increase the number of cases. Our government is taking all possible preventive measures to reduce the rate of spread. In fact, I feel India has indeed reduced the rate of spread compared to other countries by imposing curfew and locking down the state borders but India have already reported 10 deaths out of 519 reported cases which is a big percentage, I feel. So, it is important for each of us to act responsibly and smartly without panicking.
My story
I came from Spain on 13th March and then took the following steps:
  • Since I reached my home from airport, I have not stepped out of my home.
  • I work from my home.
  • I have asked my maid not to come but have not stopped her pay (…. very important).
  • I buy my groceries through big basket. For the past couple of days, big basket also starts cancelling my orders due to high demand. I informed my Apartment association members about my status and they immediately asked a vegetable vendor to deliver the list of vegetables and fruits I have asked for. The vegetable vendor placed the vegetables/fruits carton at my doorstep and maintained a distance of more than 6 feet before calling me outside. I am happy that he requested me to pay by Google-Pay when I offered for cash.


The airport authorities have checked my temperature, got my contact details and then allowed me to enter the country. Maybe they should have directly sent us to some quarantine centers, I felt. However, yesterday the government officials knocked my door and stamped on my hand and requested me not to leave my home before 28th March. Now they are tracking/monitoring each and every person who have come from abroad in the past two weeks.
The worst part in my story is that I took taxi from airport to home - my only point of contact. Now you can think of how many people might have come in contact with this taxi driver though I have confined myself in my room. Now you can think of how this can spread and that is why I reiterate that "Persons who don't have foreign travel history are also equally responsible to spread the virus at this point". So, maintain "Social distancing" for at least next few days to avoid spreading it to your parents or family members whose immunity is compromised. We need strength to recover our economy after this is over. The good part in my story is that I did not show any symptoms so far and I have 5 more days to complete my incubation period.
Thanks to the digital world!!!!
Nevertheless, I will stay indoors as long as I could. Thanks to the digital world which allowed me to work from home, enjoy unlimited entertainment, could buy essential things and talk to my friends & family members – all by online. Of course this is not the case for everyone. But whoever is possible to isolate themselves in this way should do so till we see zero number of cases for a week. Each and every person is responsible here because we are talking about exponential increase. So please act responsibly, especially young people. Educate your-self, your friends, relatives, neighbours and servants about Coronavirus and "Social distancing".

It would be great if someone translates the above video to their local language and circulate it, after getting proper rights from the video makers. Educate your-self, your friends, relatives, neighbours and servants.
Stay safe.

Wednesday, April 10, 2019

Hypersonic Research works Published in High Impact Factor Journal is Erroneous


This post should concern the Hypersonic researchers. It is about reporting a ridiculous research work published in a reputed journal which also declined to publish my “Comments” that reports the errors/mistakes of the published article. Firstly, I informed about the errors/mistakes of the published article to a retired Professor who is ex-Head of that Laboratory, then informed the first author of the article and finally reported to The Editor of the journal. Since all went in vain and my intention is to let other researchers know about the errors in the published article so that they can use the data with utmost caution and spare their time, I decided to publish it in an archive (http://viXra.org/abs/1903.0557) and provide its background here.
Paper title: Comments on “Aerothermodynamic Effects of Controlled Heat Release Within the Hypersonic Shock Layer Around a Large Angle Blunt Cone” [phys. Fluids 30, 106103 (2018)]
Paper title: Comments on “Aerodynamic Drag Reduction by Heat Addition Into the Shock Layer for a Large Angle Blunt Cone in Hypersonic Flow” [physics of Fluids 20, 081703 (2008)]
Please forward this to the concerned researchers which would save their precious time and effort. PS: I spend more than two years of my PhD convincing my Professor that the data given to me by my senior is wrong. This is one of the primary reason why I am very much concerned about this.
An article titled “Aerothermodynamic effects of controlled heat release within the hypersonic shock layer around a large angle blunt cone” was published in a Physics of Fluids journal in October 2018 (https://doi.org/10.1063/1.5046191). The Physics of Fluids journal is one of the highly reputed journal in the world of Fluid dynamics with an impact factor of ~2.3. This article was a featured article of that month.
This article is about investigating a flow physics of a spacecraft if its surface is coated with chromium using four different measurement techniques (heat flux using thin film sensors, temperature using pyrometry technique, shock stand-off distance using flow visualization technique) and also matched the experimental results with computational simulation (CFD) results. I found all the four measurement techniques were improperly used and the data was manipulated to achieve the desired results. On top of these, the test conditions itself were wrongly calculated which is used as an input to perform computational simulation. I discussed it with few experts. We found the scientific errors are substantial and so stupid. The errors are very obvious to any Experimental Hypersonic/Supersonic expert. One of the expert described it as “The article contains substantial claims with mere evidences from a vague research methodology with questionable outcomes”.
I contacted the first author of the paper and his answers were not convincing. So I decided to list out the major errors and send it to the Physics of Fluids journal to be published as “Comments”. The Editor immediately rejected it saying the first paragraph was mean-spirited. I immediately send an apologising letter and requested for resubmission. I rephrased the words and resubmitted my “Comments”. It was rejected again after the peer-review process. The first reviewer have strongly recommended my “Comments” for publication. Please find the detailed reviewers comments towards the end of the post. The second reviewer seems to have mistaken the manuscript type as “Full length paper” instead of “Comments” and refused it to publish it as a standalone paper as there is no new science involved. The second reviewer’s comments goes as follows:
“This article seeks to question the data presented in an earlier paper and, in itself, adds nothing new to the science involved. It seems to me that the objections should be taken up directly with the authors of the original paper, rather than being published as a standalone paper. If the author wishes to publish on this matter then I would recommend that they complete a set of experiments of their own, at similar conditions, and highlight any differences.”
As a policy of Physics of Fluids, "Comments are to address scientific issues in a very concise and substantive manner with no harsh criticism" (https://aip.scitation.org/phf/info/policies). It is basically to notify the errors in the article to other researchers so that the other researchers can use the data with utmost caution. In this case no new science material or additional experimental data are required as suggested by the second reviewer. Many such comments have been published in the past. So I immediately wrote an email to the Associate Editor clarifying that my manuscript type is "Comment/Response" and not "Full length paper" for which I received a reply from The Editor that they are not at liberty to publish material that has not satisfied the reviewers.
I didn’t expect such vague statements as a reason for rejection from a highly reputed journal. I believe that people in academic research can get a feel of this situation. Whatever!!! Open access journal and social networking sites gives life to such issues.  
In fact the same research group have published an article in 2008 in Physics of Fluids titled “Aerodynamic drag reduction by heat addition into the shock layer for a large angle blunt cone in hypersonic flow“ (https://doi.org/10.1063/1.2944982). Another research group performed numerical simulations on this work and found a large discrepancy (>50%) with the experimental results. The results are published in (https://doi.org/10.1177/0954410013490849) International Journal of Heat and Mass transfer in 2014. I found the reason for such a discrepancy is due to improper data analysis of the experimental signals and I notice similar kind of lethargic research work with the present one as well. The same is also reported in an open access journal (http://viXra.org/abs/1903.0555).
Please find the details of my “Comments” for both the papers in the following links:
Paper title: Comments on “Aerothermodynamic Effects of Controlled Heat Release Within the Hypersonic Shock Layer Around a Large Angle Blunt Cone” [phys. Fluids 30, 106103 (2018)]
Paper title: Comments on “Aerodynamic Drag Reduction by Heat Addition Into the Shock Layer for a Large Angle Blunt Cone in Hypersonic Flow” [physics of Fluids 20, 081703 (2008)]
Please cascade the information to the concerned researchers which would save their precious time and effort.
Referee Comments:
Referee #1 (Comments to Both Author and Editor):
I have read the comments and the associated article by Deep and Jagadeesh. I agree with the present author that the purported effects on the flow field due to the chromium coating are based on very tenuous experimental data and a weak theoretical analysis (Ref. 14 from the original article). I encourage the publication of the comment by Anbuselvan because it raises fair questions about the validity of the prior work. I cannot comment on all of the specific issues that Anbuselvan raises, but they appear to be valid concerns and should be brought to light.
Regarding the previous paper, I have the following issues:
1. the test time is extremely short and during the so-called steady test time, there are very large variations in pitot pressure and heat flux. These variations are of the same scale as the differences supposedly measured.
2. The authors say that they ran at least 5 cases, but there is nothing presented to show the resulting variation. Why not?
3. The estimates of the free-stream conditions have unrealistically small error bars, as do all other reported experimental data. How can the heat flux be measured to 2.3% accuracy, when there are order 30% variations in heat flux during the test time. This is ludicrous at best.
4. Why not just do some runs with N2 as the test gas on the chromium coated model; that would at least provide some verification that an inert gas would not produce the same effect -- though given the variations discussed above, I am not sure these effects can be discriminated.
5. Reference [14] is qualitatively valid at best. It provides no support to the experimental data shown in the subject paper.
Referee #2 (Comments to Both Author and Editor):
This article seeks to question the data presented in an earlier paper and, in itself, adds nothing new to the science involved. It seems to me that the objections should be taken up directly with the authors of the original paper, rather than being published as a standalone paper. If the author wishes to publish on this matter then I would recommend that they complete a set of experiments of their own, at similar conditions, and highlight any differences.


Saturday, November 20, 2010

My First Audition

Chocolate to our Lovely Senior

Back ground

Teja Conscious: I am Teja. I and Nikhil are close friends studying 3rd year Mechanical Engineering. We are happy that in few weeks time we will became “the seniors” of our college but at the same time we are sad that we will be missing the angels of our senior’s batch.

Scene 1: Class room during morning tea break

Nikhil is sitting on a chair of joint-school-desk-and-chair and Teja is sitting on the desk of the same joint-school-desk-and-chair, both facing towards the audience.

Nikhil: (Sadly looking at the floor) Dude, today is the last day. She will leave the campus.

Teja: (Turning towards Nikhil in a confused state) Whom are you speaking about?

Nikhil: (Looking at Teja) Swetha.

(Shot is frozen) Teja Conscious: Swetha is our senior who is about to complete her degree in IT. Many of my mates look at her, including me. My friend likes her a lot but he never tried to speak to her. Not only to her but to any of the girls because he is scared that he would be embarrassed by them.

Teja: oh, that pretty roomly figure (Nikhil scowls at Teja), oops sorry, it’s just a slip of the tongue; that pretty homely figure.

Nikhil: (in a loud voice) If your tongue slips, apply fevicol and stick it. (After a pause & in a soft voice) Should do something. (Hastily) Atleast should give a chocolate to her.

Teja: Then give!

Nikhil: Hey dude help me man. You already have experience on it by giving a PERK chocolate to your girlfriend; that too during our first year itself.

Teja: Man, she is not my girlfriend. I just tried to speak with her and it is because of you guys, I started hitting on her and became mad about her. And last week she told that she has a boyfriend already.

Nikhil: Hey, are these things new to you or what. But still you have guts, buddy.

Teja: (Jumps from the desk and stands on the floor) Alright. (Facing Nikhil) I will help you. Buy one PERK chocolate now and keep it with you. I will look after the rest.

Scene 2: Canteen during lunch

Both Nikhil & Teja are sitting in the canteen facing each other, and Nikhil is looking at the canteen’s entrance for her arrival.

Teja: Has she come?

Nikhil: No da. Hey dude, many people are in canteen. What shall we do if it becomes an embarrassing moment?

Teja: If you are concerned about that, then we can’t speak to any girl. C’mon man you should lose your dignity and respect after you joined mechanical. Oh shit!, there goes the bell, let’s get back to the class; let’s try in the evening; let’s see how your luck works?

Scene 3: Around 6 PM; Nikhil just entered the canteen and Teja was following him

Nikhil: (excitedly) Dude there she is and no one is in the canteen except she and her friends.

Teja: (Softly) Ok ok. Control your excitement. That’s true but some of her friends are guys, so let’s sit near the counter and wait for the opportunity.

She gets up from her chair and comes to the counter. She buys cool drinks and is returning to her chair.

Teja: This is the time. Get up fast buddy. Hello Akka ........

She turns back.

Teja: I am Teja. He is my friend Nikhil. We know you. Today is your last day right? So thought of giving you a chocolate, just consider it as our compliment.

Swetha: (Smilingly) Oh thank u. Which department are you guys from?

Teja: Mechanical

She shows an awkward face.

Teja: Which company you got placed?

Swetha: Infosys

Nikhil: Your posting, akka?

Swetha: Pune

Teja: ok akka, best wishes. We will catch up sometime. (Nikhil frowns at Teja for ending the conversation so soon)

She shakes hands. Then Nikhil & Teja exits the canteen.

Nikhil: (Hugs Teja in overjoy) Hey dude thanks man, you rocked. You made her to shake hands with me!!!! I will not wash my hands for a week atleast.

Teja: Even I didn’t expect that. Ok Ok when is the treat?

Nikhil: Soon buddy.

Scene 4: The next day during lunch in the canteen

Teja is working in the lab and his phone rings.

Teja: hey tell me buddy.

Nikhil: Hey where are you. Come fast. Swetha is in canteen

Teja: Ok I am coming now.

Scene 5: Teja just entered into the canteen

Teja sees Nikhil standing far away from Swetha. Teja approaches Swetha who is sitting along-with her friends.

Swetha: (On seeing Teja) Oh oh. Now what? (Teja: akka.... )- next you guys keep coming and will start to take advantage. (She takes the chocolate from her bag) Take the chocolate and leave me.

Teja: (Hastily) Oops. akka, you keep the chocolate yourselves (Then Teja walked hastily towards Nikhil).

Nikhil sees the Teja conversation with Swetha and starts approaching them. Teja signals him not to come. But he didn’t listen and signs that he also wants to join in the conversation. So Teja drags him to the other corner of the canteen where few of their friends having lunch.

Nikhil: (With anger) Stupid, why are you so selfish?

Teja: (With anger) You asshole, you want to be embarrassed.

Nikhil: (in a slow voice) What happened?

Teja: She said we are annoying her. But that didn’t bother me much. She.... she...... she is still having that chocolate in her bag. (After a pause) May be I should have got that chocolate from her.

PS: I would like to express my gratitude to my friend’s sister who grammatically corrected the script.

Masters of Sex

I have heard many crazy stories about scientific research and discoveries from fellow researchers during my PhD days in IISc and I am so ...