How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

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The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...

18 February 2021 9,538 1 View

R/Python package for time-intensity or progressive profiling in sensory evaluation?

Hi I've been looking for a stat package for my sensory evaluation data (progressive profiled which is a multi-timepoint version of descriptive analysis). Is there any available one to...

08 February 2021 9,170 3 View

How could I get the P-value from the mean, SEM, and n of different groups in the t-test?

How could I get the P-value from the mean, SEM, and n of different groups in the t-test without the original data? For detail, I would like to know the P-value between BMP-2: 50ng/ml group and the...

06 February 2021 6,539 4 View

Why are my western blot bands so distorted?

Hi guys I'm out of ideas here please help! I've never had consistent problem like this doing westerns before and I can't figure it out. The condition used: - First 4 lanes have 50ug protein in...

04 February 2021 2,297 3 View

How can I make sure the simulation results of the water droplet impacting on the wall using the FLUENT agree with the experimental results?

Dear researchers, I am modeling the process of the water droplet impacting on the wall with a constant contact angle. The specific calculation parameters are as follows: The droplet diameter is...

24 January 2021 1,020 5 View

Mysterious line across SDS gel?

Does anyone have the similar issue? A line across the denature SDS gel shows up after staining with Coomassie blue and there are many lines in every lane if you take a closer look. This gel had 15...

07 January 2021 5,610 4 View

How can I calculate packing density of particles by fomulas or softwares?

I have all data of particles, such as size distribution, or numbers. Is there any way that I can calculate the packing density of these particles? Assume that all particles are circular.

05 January 2021 4,272 2 View

After cellulose is regenerated in water, a cellulose hydrogel is formed. I want to know if there is crystallinity inside the the hydrogel?

After cellulose is dissolved and regenerated in water, a regenerated cellulose hydrogel is formed. I want to know if there is crystallinity inside the hydrogel, or it will not crystallize until it...

04 January 2021 7,466 4 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

Help needed: How to map AA, AG, and GG genotypes on to polymorphism information?

Dear Colleagues, I am new to genes and genotyping and I need help. I am trying to figure our how AA, AG, and GG genotypes map on to A1 for DRD2/ANKK1 Taq1A polymorphism(rs1800497) and Val or MET...

02 February 2021 3,861 3 View

Do head direction cells necessarily encode in an allocentric reference frame?

According to the vertebrate literature, I got the impression that head-direction cells are always anchored to an allocentric reference frame. This can easily be tested with freely moving animals....

27 January 2021 3,821 3 View

BrdU staining issue?

Hi everyone. I bumped into the difficulty that I couldn't get any signals from my brain section in the DG region of hippocampus. However, I have standardized the BrdU protocol in my brain...

13 January 2021 9,449 0 View

What are some factors that would result in a small fEPSP?

Hi everyone, I'm consistently having small fEPSP's of approximately -0.01 mv. I've been moving the position of my electrodes and increasing the stimulation intensity but the response doesn't...

03 December 2020 7,125 7 View

What is an appropriate tip diameter size for a stimulating electrode?

I'm setting up an electrophysiology rig examining LTP in the CA1 region of the hippocampus. What is an appropriate tip diameter size for a stimulating electrode to generate fEPSP? Also, I'm...

01 December 2020 5,139 2 View

How to check spread of AAV2 virus that doesn't express fluorophores?

Hi, I am injecting AAV2-Retro virus (AAV2-retro-EF1a-DIO-FLPo-WPRE-hGHpA from Addgene) that carries cre-dependent flp recombinase, in the mouse dorsal hippocampus and I need to verify that the...

08 November 2020 9,559 3 View

Which anesthesia system should I buy to perform stereotaxic surgeries in mice?

I am trying to start a protocol involving bilateral cannula implantation in specific brain regions in mice (mPFC, hippocampus). For that, I need to buy an anesthesia system. I found many...

06 November 2020 3,613 3 View

Anyone familiar with antioxidant studies on rats' brain homogenate?

I am looking for a skilled personnel in Kuwait University that is familiar with antioxidant studies using ELISA kit or other techniques on rat's brain homogenate, particularly the hippocampal and...

04 November 2020 5,481 1 View

What is the best method for miRNA expression analysis in Rat hippocampus?

Hello to all. I am performing a thesis on Cognitive disorder modeling in rats and the effect of Pharmacological Treatment on the disease and the expression of certain miRNAs. I am seeking...

14 October 2020 6,690 1 View