16 May 2022 1 10K Report

Hi all, I want to ask if the DNA is in 2M NaCl solution. When I spin it through the silica membrane of the Qiagen DNA extraction column, does the membrane still have the ability to bind DNA?

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Problems about acousto-optic coupling in Comsol, how to check whether the moving mesh is correct?

I’m trying to reproduce the acousto-optic coupling simulation in the paper Frequency–angular resolving LiDAR using chip-scale acousto-optic beam steering. LNOI(lithium niobate on insulator) is...

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Why Do TDS and EC Increase with Larger Wastewater Volumes, While BOD and COD Decrease?

I have carried out MFC experiments on three different volumes, 50, 500 and 1000 mL of wastewater. Results after MFC treatment shows that TDS and EC are more in larger volumes of water i.e. TDS and...

09 August 2024 9,621 0 View

How to enrich pig excreta for increasing nutrient quality organically ?

Pig slurry is rich in major and minor nutrients. Is there any way to improve / Enrich its manure quality to be used in agriculture organically ? please share your knowledge.

09 August 2024 5,605 2 View

Request Python code?

Request Python code from this article : Gender equity of authorship in pulmonary medicine over the past decade. THANKS!

08 August 2024 6,242 2 View

How to solve the problem of unconscious teeth grinding during sleep at night?

One of my friends, every night after falling asleep, his mouth would make a creaking sound after chewing something. This teeth grinding condition would continue until he woke up, and he didn't...

08 August 2024 1,366 5 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

Unusual intensity drop in some sections of chromatograms in DDA?

Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...

07 August 2024 3,218 4 View

Leaf area of tomato ?

Hi How can this equation Ln(LA) = 1.038 + 0.89 ln(X) be applied to calculate the leaf area of ​​a tomato? Can you explain with an example and what is the substitution of Ln and ln?

06 August 2024 2,508 2 View

Why did the authors extrapolate a phenotype that they experimentally proved in one bacterial strain across the whole genus of the organism?

I aim to be as skeptical as possible regarding whether a pair of orthologous genes results in the same phenotype in their different but related bacterial organisms under similar environmental...

05 August 2024 6,787 4 View

How to preform densitometry on SDS-page bands?

I ran a SDS-page of a bacterial lysate and I want to quantify protein concentration in a specific band. I was thinking of using a standards ladder or make some standards are different...

05 August 2024 9,805 3 View

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Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

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Hi, I am a master's student who studies inflammation. I'm planning to extract RNA from the Vagal nerve or Dorsal Ganglion roots, but I got a question. It would be only a few 50ug per each nerve,...

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Help. How can I fix my T7 reaction problems?

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Qiagen circulating nucleic acid kit poor yield?

Hi, Attempted to extract cfDNA from a 4 mL plasma sample, with poor yield. Went through the manual in the section regarding poor yield, and feel that this does not apply. Some potential...

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Are DNA samples with 260/280 ratio greater than 2.1 good for sequencing?

I have DNA samples (extracted by using Qiagen kiit), the 260/280 ratio is consistence 2.1.. for most of the samples. Can I proceed for the whole genome sequencing with these values? NGS.

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How can I improve purity of DNA extracted from cyanobacteria using Dynabeads?

I am trying to extract DNA from the cyanobacteria Microcystis aeruginosa using the Dynabeads DNA DIRECT Universal kit for the purpose of on-site detection. Yield is acceptable at ~100-500 ng/uL,...

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Does Trizol LS yield more and better RNA than normal Trizol?

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How to pellet adipocyte spheroids?

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DNA purification from ATCC 25922 E.Coli strain with QIAGEN kits?

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