Anyone knows why the NMR integration value becomes negative?

More Fariba Fahmideh Mahdizadeh's questions See All

Knowledge graph of cold chain?

Dear Friends I hope you are well. "I'm interested in the concept of a 'Knowledge Graph of the Cold Chain.' If you have any files or information on this topic, could you please share it with me?...

05 March 2024 2,305 2 View

Does passive movement produce EMG?

Can passive movement of a joint, for example plantar/dorsiflexion of ankle joint, elicit EMG activity in tibialis anterior and gastrocnemius muscles?

09 June 2023 8,007 4 View

How to measure the concentration of free calcium in the cytoplasm of rat beta cells?

Hi How to measure the concentration of free calcium in the cytoplasm of rat beta cells? Thanks

15 April 2023 3,122 7 View

Why chitosan glutaraldehyde hydrogel does not swell?

Why chitosan glutaraldehyde hydrogel does not swell and absorb water after being placed in the refrigerator?

11 March 2023 1,607 3 View

Amaxa Nucleofector vs Neon thermofisher electroporator systems?

Does anyone have experience with using Amaxa nuclefactor or Neon for electroporating CRISPR plasmids or any other vectors in primery cells?

28 February 2023 6,834 2 View

Has anyone done cDNA transfection on human primary T cells successfully using NEON pipette (ThermoScientific System)??

I was wondering how this system compares to the BioRad electric pulse system for delivery of plasmid components? what is the optimized buffer or what is your advice to imorove KD efficiency?

20 February 2023 3,767 0 View

Monte Carlo vs Molecular dynamics?

Hi, Imagine that you are going to sample a protein conformation (consists of N atoms) using Monte Carlo and Molecular Dynamics simulations, independently. For the MD simulation, the phase space...

06 December 2022 318 6 View

How can we maintain our peace, freshness and good mood in a life full of work and activities?

Hello. Good Night Recently in class, students were asked a question that is important to me, and I heard some interesting answers. My question is, how can a woman perform many duties and...

05 December 2022 6,891 8 View

What is the mystry of rose?

Sohrab Sepehri one of Persian poets says at the end of one of his tender and mystical poems called "water`s footsteps" : It is not our business to fathom the mystery of rose🌹 Perhaps our...

26 November 2022 6,979 90 View

FES diagram for Metadynamics simulation with 3 CVs?

Hi all, What is the best way to draw a FES diagram for a metadynamics simulation with 3 CVs? I know that it is still possible to draw 2D FES diagram with two CVs and project the Free energy...

11 December 2021 908 4 View

What is the prepared reference material that can be used in inductively coupled plasma optical emission spectrometry (ICP-OES) to measure REE and U ?

What is the prepared reference material that can be used in the ICPE-9820 Shimadzu Japan instrument, which employs inductively coupled plasma optical emission spectrometry (ICP-OES) to measure...

06 August 2024 1,896 1 View

Could dyes amplify the spectrum of light to a specific wavelength?

I am interested to know the behavior of dyes toward light. Specifically, Blue dyes re-emit the spectrum, especially from the green zone (known as principal in LED lamps, and blue dyes are known...

05 August 2024 3,289 1 View

Why do paired electrons atoms produce no magnetic field lines?

If you think of electrons with spin as bar magnets, you know bar magnets of opposite polarity as long as they're not occupying the same spatial location don't cancel out each other's magnetic...

03 August 2024 3,927 2 View

Melt curve problem in qPCR?

Do these peaks in the curve indicate primer dimer or non-specific products?

01 August 2024 7,465 0 View

How to correctly use the UTE and ZTE pulse sequences in Bruker's ParaVision software?

I am using a Bruker 600M solid-state NMR spectrometer with a Micro 2.5 microimaging system. The test sample is a tube of 1M LiCl aqueous solution, and the nucleus detected is 1H. I am trying to...

01 August 2024 9,226 1 View

Mossbauer spectroscopy Co0.6Mn0.4Fe2O4 MNPs?

Following curve related to Co0.6Mn0.4Fe2O4 Magnetic nanoparticles with extra phase a-Fe2O3. I will appreciate to help me to interpretation this spectroscopy, especially the blue line.

31 July 2024 9,138 2 View

Is artifacts in XPS possible to build high deviation in binding energy larger than 5 eV??

Hello. Thanks for your consideration to see my question. Recently, I conducted XPS anaylsis of g-CN that is prepared from thermal polycondensation of DCDA, so-called conventional bulk-g-CN,...

30 July 2024 9,824 2 View

Tips for teaching Orton Gillingham+ to students with autism?

I am beginning to use OG+ in my district and noticed during training there are a lot of materials and routines, which may be overwhelming for my students, especially those on the autism spectrum....

30 July 2024 5,695 0 View

How to improve peaks separation in HPLC?

Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...

30 July 2024 435 3 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View