How can I order salmonella typhimurium standard strains for ames test?

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How to completely dissolve soy lecithin?

Hello, I'm looking to dissolve soy lecithin in order to create a liposome. I've tried using various solvents like pure ethanol, methanol, and a mixture of ethanol and methanol but they didn't...

02 August 2024 6,980 4 View

When using NVivo software for data analysis, is it necessary for the researcher to also manually analyze the data?

it's my first time using NVivo software.

01 August 2024 9,304 5 View

How to convert a potential collected with reference to Saturated calomel electrode to Reversible Hydrogen Electrode?

I have collect a LSV data by taking SCE as the reference electrode. But I want to convert this one to Potential with respect to Reversible Hydrogen Electrode. Please suggest me the required...

13 July 2024 7,841 2 View

Regarding solubility of Dorsomorphin in DMSO ?

I'm using Dorsomorphin (C24H25N5O) as one component in dual SMAD inhibition of pluripotent stem cells to differentiate into neurons alongwith SB431542. Now as to solubilizing 10mg SB in DMSO for...

11 July 2024 4,832 0 View

Is it a source for moisture factor in different plants?

Is it a source for moisture factor in different plants? I need to find moisture factor (oven dry weight / wet weight) in plants in different studies.

10 June 2024 842 0 View

How can I clean autoclave (PTFE) from sulfur contamination ? in all aspect of color, smell and existence of Nano particle of sulfur??

the autoclave has been smelly and seem likely yellow after my synthesis and this changes may effected on other synthesis, so I want to clean PTFE from all sulfur contamination that remain on...

31 May 2024 2,985 0 View

What are the new and required subjects for a doctoral thesis on cyber threat intelligence?

29 May 2024 6,410 1 View

What's the optimal temperature for freezing a lipopeptide solution before lyophilization?

I have a lipopeptide solution that I intend to lyophilize in a few days. Should I put it in the -20 freezer or -80? Which temperature is best for maintaining its properties?

20 May 2024 3,893 0 View

Challenges in Identifying Crack Initiation and Interpreting Results in Abaqus Direct Cyclic Fatigue Simulation?

Dear researchers, I'm currently conducting a direct cyclic fatigue simulation in Abaqus, but I'm encountering difficulties in analyzing the results. Despite the simulation running, I'm struggling...

04 May 2024 6,957 2 View

Cloudy background of polyacrylamide gel after de staining, a confusing problem?

Hello. My polyacrylamide gel becomes cloudy after de staining with a solution consist of (50% miliQ water + 40% methanol + 10% acetic acid) and the background of my gel does not become completely...

02 May 2024 895 2 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 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

Why do exism movements become permanent dictatorship threats within liberal democracy thinking under majority rule-independent rule of law system?

Exism movements after gaining power within liberal democracies under majority rule and independent rule of law system become permanent dictatorship threats, but why this is the case is not clear...

04 August 2024 8,125 3 View

Which test should be used to study association among demographic profile and awarness level?

i have to study the awareness and adoption level of cloud computing in a district of India. i also want to use association among demographic variables like gender, age, education, income etc and...

02 August 2024 2,420 3 View

Posthoc test lettering in JAMOVI?

Does anyone know of a module for the JAMOVI software that is capable of generating mean separations using the classic letters based on post hoc results (e.g., Tukey test)? If, as I believe, such...

31 July 2024 3,333 4 View

How to do Mann-Whitney U test with Bonferroni corrected p-values?

Dear All, My lab primarily works on insect wing patterns. In one of the projects, my student and I have defined 19 abnormality characters on the forewing and 6 abnormality characters on the...

31 July 2024 6,464 5 View

Can the limit of quantification (LOQ) of an analytical method fall outside its linear dynamic range, or must it always be within it?

Can an analytical method's limit of quantification (LOQ) be outside its linear dynamic range, or is it always required to be within it? Please provide a thorough explanation supported by verified...

29 July 2024 7,198 9 View

Where to start the Analytical model for Dry sliding wear of metal surface ?

I am doing research on wear mechanism of the additive manufactured metal parts under dry condition. Please share the reference to start the analytical modelling of the wear prediction.

29 July 2024 6,115 0 View

Bonferroni correction. I have independent t-test, paired t-test and ancova conducted. Which test would require Bonferroni adjustment?

I have two groups that I test on three different tasks. I have 4 independent t-test, 6 paired t-test and 2 ANCOVA. My concern for which t-test should I conduct bonferroni correction. At the moment...

28 July 2024 7,827 6 View

Can I use Likert scale with Paired Sample T-test?

Hey researchers! I am currently doing a research about to what extent in which A has accelerated the inclusiveness of the payment system in my country. Down below are a few examples of the...

26 July 2024 5,654 3 View