How can I make a center of mass vs time graph?

I have a trajectory file of about 1000 frames which I have calculated a center of mass for each frame. I would like to use the first frame as a reference and see how much the center of mass...

04 February 2021 5,774 1 View

Does anyone know papers that use large databases of abundance of different groups of species?

03 October 2020 2,506 4 View

There seems to be a double me?

You keep recommending that I invite a Ruben C. Gur to join. That person is me. Do I have two accounts or is something messed up in your database? Is someone else getting credit for my research or...

06 September 2020 2,374 5 View

How do I avoid from getting fatal error message when running Amber?

Welcome to antechamber 17.3: molecular input file processor. acdoctor mode is on: check and diagnosis problems in the input file. -- Check Format for pdb File -- Status: pass -- Check Unusual...

17 August 2020 7,046 3 View

Do you think that COVID-19 will make small countries in Eurasia to pivot to China?

It seems that Asia is doing better in countering COVID-19 than "traditional" great powers. Do you think this will make small countries in Eurasia to pivot to China?

11 May 2020 2,847 10 View

What is the effect of Coronavirus on the world order?

What do you think, how Coronavirus will reshape the transforming world order?

24 March 2020 742 24 View

What is the most effective way for you to run online classes?

Because of the Caronavirus I am running my classes online. In this regard I am wondering if you have that kind of experience and what is the most acceptable app/method for you. Thank you in advance

13 March 2020 9,580 49 View

Why does my PCR not show whether my mice are homozygous or heterozygous for a floxed gene?

So, I am trying to determine whether my mice are homozygous or heterozygous for a floxed gene. I ordered the primers specified by the company which developed the mice and they amplify a 301 bp...

10 March 2020 9,740 4 View

When you recommend to cut the heart in a murine models of heart failure?

Good evening everybody, I am working on a model of acute heart failure and I am planning to analyse heat shock proteins (western blot) in the right and the left ventricle. The mouse heart is very...

03 June 2019 7,528 5 View

Can anyone help me in forming a questionnaire ?

The research topic for which i need a little help in forming research questionnaire is "Career Challenges and Issues Faced by Women Engineers and their Favorable/Desirable Attributes in relation...

21 April 2019 2,210 4 View

Good sites to recruit survey participants on a grad school student budget?

Any good recommendations for participant recruitment for online surveys on a grad school student budget?

02 March 2021 4,293 4 View

Are ZnS nanoparticles moisture sensitive?

Hello Everyone, I tried to form ZnS nanoparticles using the hot injection method and was able to form the same (confirmed by XRD). When I centrifuged, after the reaction I got a kind of white...

17 February 2021 1,709 3 View

Best protocol for immunogold using araldite resin ?

Hello, We perfom Tokuyasu method (ultrathin cryo sectionning) very often to make immunogold experiments. This time, we need to make a PLT technique with K4M or LR white resin. Our results were...

14 February 2021 4,959 1 View

Does anyone have a stack of images of action potentials or abnormal brain scans?

I need a stack of black and white .jpeg/.tiff/.jpg/.png images across time of either action potentials, neurons firing, or brain scans (comparing disease and normal brain, disease progression,...

09 February 2021 2,648 3 View

Seeds harvest from white clover by selfing?

I tried to get seeds from white clover by self-fertilization but I could not get the seeds. As you know the white clover is generally fertilized by crossing. I wanna get the seeds by...

04 February 2021 9,152 4 View

After transformation of Dh5alpha competent cells I found a cloudy white ppt before plating. Can anyone explain this?

After transformation of Dh5alpha cells by heat shock I grew them at 37 in 200microlitre Terrific Broth (because I had it at hand) and then before plating I found cloudy white ppt in the cell...

03 February 2021 7,867 3 View

Alternatives to .45 um filter to isolate MS2 from lysed E. coli?

Hello, I am looking for alternatives or cheaper materials to isolate out MS2 from E. coli following lysis via chloroform. Some literature I have reviewed uses a .45 um nanopore filter following...

02 February 2021 807 3 View

Has someone used TTC agar overlay method and can help me?

I have tried to use TTC agar overlay method for a few times to identify respiratory-deficient yeast which were affected by EthBr. The problem is that cells which should have stayed white also have...

22 January 2021 585 10 View

Testing of Antennas?

So, I came across, where antennas are being tested in a building ( a plant), where all sorts of big equipment are around and of course the ceiling. lot of multipath which can affect the...

21 January 2021 9,437 3 View

I am trying the synthesis of graphene oxide by using modified hummer's method and the color of my product was white silver so is it graphene oxide?

i have tried modified hummer's method for the synthesis of graphene oxide by adding Graphite powder and NaNO3 in H2SO4 . In this mix KMnO4 was added and diluted with water . this mix was heated...

13 January 2021 9,423 4 View