Jump to content

  • Log in with Facebook Log in with Twitter Log In with Google      Sign In   
  • Create Account

Curtis

Member Since 30 Jan 2009
Offline Last Active Today, 09:11 AM
-----

Topics I've Started

volunteers positive to tumor marker, but no clinical sign of health problem!

09 May 2013 - 10:50 PM

I saw some strange results yesterday and I don't know how to explain them. 25 out of 40 participants in a study are positive to PSA and 12 others are positive to CA19-9 tumor markers. According to the doctors, all of the participants are in good health, but they live in a high level natural radiation area (HLNRA). Google it if you don't know what it means.

My question is, could this be an experiment error? Is it possible to see a healthy person with positive tumor marker?

Will inactive virus particles make rabbit produce antibody?

08 May 2013 - 06:37 PM

I want to get polyclonal antibody against my avian virus by injecting a rabbit, but I'm not sure if my virus particles are active since they have been in -80C for over a year now. To find out if the particles are alive we usually run plaque assay on Vero cells, but that will take time, at least 2 weeks, and I want to inject now.

The question is, Is it necessary to inject rabbit with active particle? Or inactive particle would also produce antibody against it? To me it kinda sounds like vaccinating with dead particle, and yet the body produces antibody against it.

Method of calculating p value for Pearson's correlation coefficient

28 April 2013 - 09:35 PM

I'm not very professional in calculating Pearson's correlation coefficient (r), and I see people use the following formula to calculate the p value for r:

p=r/Sqrt(r^2)/(N—2)

where N is the number of variants.

why don't they just use student's t test? I usually use Excel and chose TTEST function for this matter. It's so easy.

benefits and privileges for postdocs

04 March 2013 - 07:43 AM

I am not happy at my university at all. The job in here has no benefit or privilege, specially if you are a foreigner. There is no medical insurance for my wife, or any dependent. Other universities, specially private ones, pay much more, but my boss is the deputy secretary general of the ministry of science and I'm scared of leaving this job for another. If I leave now she can literally hunt me down :D. Besides, I need her recommendation letter for my next job.

Last year before my contract extension I applied for other jobs, even for my former university in UK, but they all turned me down. Our work is stuck at this moment and we are asking a German company to synthesize the genome for us. The job is not really productive. I am a second year postdoc with 7-8 papers only. This year they didn't raise my salary because I didn't reach 10 papers milestone. The salary is also not much, and wife is always angry why I can't earn more :). The finance department also forgot to pay me 2 times for one month, and they didn't even apologize.

Last year when I came here they told me once a year I can go back home and claim the plane ticket. But now they say I can claim only one plane ticket at the end of my contract,... wife or children not included. I keep asking myself what I am doing here. This is really slavery. Next week I am going back to my home country to search for jobs (I might not have access to the internet to moderate the forum).

Can you please share your experiences with me? I want to know the benefits that you as a postdoc get in your countries.

Endnote's search engine sucks

01 March 2013 - 08:44 AM

Every time I search a long article title the Pubmed engine in Endnote can't find it. I always have to shorten the article title to get a match. Do you guys have this problem too? Especially if the title goes to the second line it's impossible to find a match. How to solve this problem? am I doing anything wrong?

Home - About - Terms of Service - Privacy - Contact Us

©1999-2012 Protocol Online, All rights reserved.