What should be boundary condition on wave function in a continuous potential?

If the potential is a continuous function of x ,say V,(x)= - A ( exp(2|x|/a) -1) ,what should be boundary condition on wave function ? Further ,will it be correct to argue ,wave function and...

11 December 2020 6,617 4 View

How to calculate antibody titre in serum of vaccinated animal using Direct ELISA?

How to calculate antibody titre in serum of vaccinated animal using Direct ELISA? The OD values obtained at different dilution how to determine the cut off OD against which the antibody titre...

31 January 2020 909 4 View

DNA precipitation without ethanol?

Is there a way of precipitating DNA from water without using ethanol? for example, mixing DNA with glycogen and ammonium acetate and then spinning it long enough so the bound glycogen+dna would...

22 August 2019 5,501 6 View

What is the meaning of writting a comment on a published paper ?

When one writes a comment on a published paper , what is actually the intention of the commenting author ? To point out the mistakes or present complete solution . It is seen that very often...

25 February 2019 6,029 4 View

Multiple peaks of the same compound in LC-MS Analysis?

Dear All, I was analysing some MAAs (mycosporine amino acid like substance) samples. HPLC shows a single peak with RT 4 wavelength 333nm. so I thought it is a pure compounds. To know the mass of...

21 August 2018 9,698 3 View

Silicon atom types in Charmm36 ff?

Hi, I want to simulate a ligand containing Silicon atoms ( present in the aromatic form as well). I wanted to ask if anybody could let me know the presence of silicon atom types in Charmm36...

14 June 2018 4,648 3 View

Can I use PVP instead of Sodium acrylate for the synthesis of graphene oxide magnetite nanocomposites?

It says that sodium acrylate is used as a stabilizer and to improve solubility of the precursors. And without its presence the particles aggregate. Can I use PVP instead??

12 June 2017 7,979 3 View

How the score is optimized in multiple sequence alignment?

Can anybody guide how a perfect alignment is obtained or constructed which can be compared with balibase alignment with baliscore? If we consider total conserved column score then it is possible...

05 December 2016 6,817 1 View

Can you help in MATLAB for H=p^2 - x^4 +2ix on eigenvalues ?

Can you help me in eigenvalues calculation using MATLAB for H=p^2 - x^4+2ix ?

29 June 2016 5,501 2 View

Having two soil type (A, B) and extracting with either solvent C or solvent D. C-D value (recovery) is my interest. How to compare A, B on this?

07 June 2015 7,697 8 View

Covid 19 Pandemic ' impact on digital transformation?

Covid 19 Pandemic and digital transformation

22 February 2021 3,351 5 View

How to correctly choose the number of solution intervals when preforming harmonic analysis in ANSYS?

Good day, I design the rail-wheel geometry and the harmonic frequency ranges between 20-10kHz with 500Hz solution intervals and the results makes sense. Most of the time on the related literatures...

19 February 2021 3,190 3 View

What are the best cations for preparing competent cells, Ca2+ or Mg2+?

I have been reading various articles and most state that treatment with CaCl2 produces higher efficiency of transformation than MgCl2. Can anyone explain why Ca2+ is better than Mg2+ at...

16 February 2021 8,519 5 View

Is the logarithmic transformation a necessary step in time series analysis ?

Hello, I'm checking if the log-tranformation of time series data is a necessary step; We all know the aim of such transformation, but in every study (in time series analysis) we found the authors...

15 February 2021 5,655 14 View

How much amount of DNA (ligation mix) should I use for transformation?

Hi Fellow Scientists! I am trying to clone my 300 bp insert into a 6 kb vector. I run a few different ligation reactions using (1:3 vector: insert molar ratios) 10, 20,30, and 40 ng/ul vector...

15 February 2021 9,563 6 View

How to produce huge amount of protoplasts from Fusarium graminearum?

Hi, all I am using some protocol for protoplast production from Fusarium graminearum (Fg), but I need them in a huge amount. Sometimes the protocol worked well but most of the time failed....

14 February 2021 2,286 4 View

How to measure 50uL of cells?

Hello, I am planning to do a transformation, and on the protocol it says "Scrape a 50 ml volume of yeast from the YPAD plate using a sterile inoculating loop or sterile toothpick". But I can...

14 February 2021 6,247 3 View

Mixed ANOVA with some normal and some non-normal data?

I am looking to run a 2x5 Mixed ANOVA to examine Sensory Processing Sensitivity in Highly Sensitive People (HSP) and Non_HSP. My Between-Subjects factor is HSP and Non-HSP. All participants tested...

11 February 2021 1,445 6 View

What could be the cause to have an E.coli DH10B transformed with pUC18 to grow in MKL + ampicillin but is not LAC+?

Hello everyone, I did a transformation of E. coli DH10B using pUC18 plasmid. The bacterias did grow on MKL medium with ampicillin but the colonies showed a white/pink colour and the medium was...

08 February 2021 9,720 3 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