How can I reduce the number of experiments in screening before optimization?

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How to calculate passive current density in the case of pseudo passivity?

When the alloy is passivated, it is easy to find the passive current density. My question is, in a pseudo passive polarization curve (where the passive current density is not constant, but...

15 February 2024 7,661 0 View

Decreasing pH after autoclave?

Did anybody actually check the pH before and after autoclave? My different medias are starting to be acidic after autoclave and I can't find an explanation for this observation?

29 July 2023 9,251 8 View

We want to produce Teflon grease in silicone oil. What is the way to disperse Teflon powder in silicone oil?

This problem has arisen due to the incompatibility of Teflon powder and silicone oil.

24 July 2023 9,375 1 View

Buckling Analysis of Honeycomb in ABAQUS: How to Preventing Unrealistic Eigenvalues and Eigenvectors?

Hello all, I am seeking assistance from individuals with experience in Abaqus for a problem I'm encountering. I am currently working on the development of a buckling analysis for a honeycomb unit...

06 July 2023 453 1 View

Does anyone know any database which contains a list of B2B firms which use ai-powered pricing optimization tools?

I'm looking for a database which contains the information regarding the name of B2B firms which use AI-based pricing optimization tools. If this database also include any contact information or...

08 June 2023 4,777 1 View

How to use "remr" stata module in dose-response meta-analysis?

I am currently writing a dose-response meta-analysis paper. Because most of my studies did not report data to compute covariances, I decided to use Robust error...

05 May 2023 4,698 0 View

Agent-Based Modeling?

Hello everyone, Can anyone guide me in preparing the pdf version of the ebook titled "Introduction to Agent-Based Modeling: with applications to social, ecological, and social-ecological...

22 April 2023 3,034 0 View

Does anybody know any article on how to design filler task in the survey?

I want to design a filler task for my study as a dummy task so that the respondents in my survey won't understand the intention of the researcher. Does anybody know any article on how to design...

16 December 2022 9,013 0 View

What could be the source of sudden but persistent low frequency fluctuations on EEG signals?

Hello, Recently, during the EEG signal recording, a low-frequency fluctuation with a very high amplitude, as shown in the attached video, is added to the EEG signals. It suddenly appears during...

27 May 2022 7,123 9 View

How to run PCA in RStudio with appropriate codes?

In order to analyze the principal components (PCA) in the RStudio software environment, I installed various packages, including "ggplot2" , "factoextra" as well as "ggfortify". However, the...

23 January 2022 1,854 5 View

Can you connect an HPLC to a Mass Spec only at a certain time point?

Can anyone explain this method? Especially the last statement where it says only at 1.5 to 2.5mins was the MS/MS connected to the UPLC. How is that possible, is it a feature in this specific...

11 August 2024 8,141 3 View

GC-MS retention index prediticon?

Hello experts, Does anyone know any free software about retention index prediction ?

08 August 2024 7,403 2 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Where to find a gene list for CRISPRa/i library screening of regulatory factors that affect pathogenic Th17 differentiation in PBMC?

I want to perform a CRISPRa/i library screening for candidate regulatory factors that affect pathogenic Th17 differentiation in PBMC. But I am wondering how to define the size of gene library, so...

31 July 2024 2,150 0 View

Hello dear researchers. I would like to know what is a normalized mass in an EDX analysis?

EDX analisys

31 July 2024 5,947 2 View

Gas chromatography RT detection?

I am working on algal extract to which gas chromatography (Not GC-MS) spectrum I want to discover. My question is can we identify specific compounds using retention time if I compared the RT with...

29 July 2024 8,034 4 View

MAGeCK Plotting Error: Logarithmic Axis Must Have Positive Limits?

I have been running a MAGeCK test command on the terminal for a CRISPR screen to rank sgRNAs and genes based on the read count tables. However, I get only the plot of the top-ranked genes...

28 July 2024 9,811 1 View

Screening of EPS producer LAB?

if you have MRS broth already prepared, what is the manner you will follow for preparing hyper-sweet medium for screening of EPS producer LAB? what the concentration of saccharose or glucose you...

26 July 2024 6,606 0 View

Could international experts in media and journalism, AI, communications and international communication share this conference link?

"Integration of Mass Media and Communication into the System of International Relations: Place, Role, Actuality and Prospects: Modern Media Issues 2024" Website: https://immcir.alnoor.edu.iq/

23 July 2024 3,139 6 View

Why methanol and sulphuric acid used in the analysis of polyhydroxyalkanoates (PHA) by GC-MS?

Why methanol and sulphuric acid, used in the analysis of polyhydroxyalkanoates (PHA) methyl esters by GC-MS? Additionally, why do we typically use non-polar solvents in GC-MS?

22 July 2024 1,210 2 View