My blogs on the Biophysical Society blog page

As a social media contributor, I have written a few blogs on the Biophysical Society blog page. Click here to read them, if you are interested.

Biomolecular NMR Lectures by Prof. Prestegard

Awesome set of lectures on Biomolecular NMR course (along with video of the lectures) is available at this link.

PhD and Project positions in Diabetes Research

Students interested in research related to diabetes in Indian population may like to look through this website:

http://shilpysharma.wordpress.com/

Have fun!

 

HomeBrew installation on Mac behind proxy

I was having issues while installing homebrew on Mac 10.8.4 (version does not matter for the problem I was facing, but still writing the version for completeness). After typing in the installation command in the terminal:

ruby -e “$(curl -fsSL https://raw.github.com/mxcl/homebrew/go)”

I was getting the following error message:

curl: (6) Could not resolve host: raw.github.com; nodename nor servname provided, or not known

Googling this did not give any appropriate answer. After lots of messing around, I realized that HomeBrew installation does not work behind proxy and one has to avoid that using the following command in terminal:

export ALL_PROXY=$http_proxy:port

After this is done, installation worked smoothly. FYI.

NMR videos on YouTube

An interesting playlist of videos compiled by Journal of Magnetic Resonance where authors talk about their landmark articles published in JMR.

YouTube Link is here.

Saving Projects in Sparky

I found a bug in Sparky (NMR analysis software) – am not sure if its a known bug or not! If you have multiple spectra open and you save entire work as a project, and then if you close and re-open the project, Sparky will not let you visualize those spectra which were minimized before closing the project. And if you try to open those spectra using ‘fo’ command, it will say the spectrum is already loaded! Basically, if you minimize any spectrum in a project and close it, you will loose it forever and you will have to start over!

TCU error in Bruker!!

Sigh…..I played with so many parameters to get away with the following error. I was trying to install a pulse sequence on a Bruker Spectrometer with XwinNMR (old Bruker software) which was originally written on TopSpin (latest Bruker software) when this error started popping up every time I tried to optimize receiver gain.

tcu error:
Error in ‘hsqcrexetf3gpsi3d.t22.d’:
line 92 (pc=50, ld=2300):
– FCU2 (rp=16, wp=1690, stat=0X8040):
ignored AQNEXT, busy FIFO is stopped

Finally I talked to one of the Bruker personnel and found out the following solution for the error. Always make a point that you add a line “4u” just after you define a shaped pulse. For example, I had the following line on topspin.

;*********************
(p11:sp1 ph2:r):f1
;*********************

So, I had to add 4u after this line to make it work.

;*********************
(p11:sp1 ph2:r):f1
4u
;*********************

Hope this helps.

Academic Spam!!

Hi Folks,

Today, I received the following email on my current academic email ID:

Dear Dr. Jeetender Chugh,

I am writing on behalf of an international publishing house, LAP Lambert Academic Publishing.

In the course of a research on the Tata Institute of Fundamental Research, I came across a reference to your thesis on “NMR in Proteomics: Investigations on Large Protein Assemblies and Method Developments”.
We are an international publisher whose aim is to make academic research available to a wider audience.
LAP would be especially interested in publishing your dissertation in the form of a printed book.

Your reply including an e-mail address to which I can send an e-mail with further information in an attachment
will be greatly appreciated.

I am looking forward to hearing from you.
Kind regards,
Tatiana Costandachi
Acquisition Editor

LAP LAMBERT Academic Publishing AG & Co. KG
Saarbrücken
Dudweiler Landstraße 99, 66123 Saarbrücken Germany

Fon +49 681 3720-310
Fax +49 681 3720-3109

t.costandachi(at)lappublishing.com / www.lappublishing.com

Handelsregister Amtsgericht Saarbrücken HRA 10752
Partner with unlimited liability:
VDM Verwaltung Aktiengesellschaft

Board of Directors: Dr. Wolfgang Müller (CEO), Christoph Schulligen, Esther von Krosigk

Supervisory Board: Prof. Dr. Johannes G. Bischoff (Chairman), RA Thomas Bischoff, RA André Gottschalk

A pretty impressive letter, and a very sophisticated spammer. They managed to dig out my Institute name and my thesis title correctly and then emailed me on my current academic email address, hmmm. I immediately checked on google, and found several blogs mentioning the receipt of similar letters. Cool thing is, if you search their website, you will find one (which can be made by spending a couple of hundred dollars easily). So, if you respond to the email, you will be asked to send your “Bank Account Details” for the so-called annual royalty deposits. Interestingly, they mention this on their FAQ page that it is OK to send them the account details as it is a very common process in Germany. I also believe that its more than just sending your account details, as they mention that you can just open a brand new account specially for this purpose and then send those details, which sounds quite safe. Is it possible that they can play with your thesis/paper (once they have all doc files)? I am confused.

Fluorescence: A source of noise in NMR?

The other day I was reading a book “Experimental Pulse NMR: A Nuts and Bolt Approach” by Eiichi Fukushima and Stephen B W Roeder and I was encountered with a sentence which says,”Fluorescent lights generate noise which can be picked up in the spectrometer.” (para 1, page 13). I wonder if they are talking about NMR spectrometer (as they don’t mention it explicitly in the sentence). I have never come across this statement anywhere and I liked it. I wonder what kind of frequency is emitted by fluorescence lamps other than visible spectrum which adds to noise in the spectrometer. May be thats the reason why NMR and fluorescence spectroscopists don’t get along with each other so nicely….:).
By the way the book mentioned above is really nice and I liked going through it.

CSIR Nehru Science Post Doctoral Research Fellowship!!!

Guys, there is a decent scheme CSIR has come up with, only for the fresh PhDs though. Looks like Govt of India is trying to stop the “Brain-Drain”. Its a decent post-doctoral fellowship of Rs 35,000 pm plus HRA and an annual contingency of Rs 300,000, wow!!! At least “big people” in India are now realizing that its also “money” why people are not pursuing basic sciences in India. I am pretty sure that this would attract young scientists to remain in the country and “uplift” the level of Science. I do have a copy of the circular from CSIR with me which can be downloaded by clicking here. Also, I do not have any other information regarding, last dates, how to apply, application format etc., for all these inquiries, please contact CSIR directly.