I am in need of salmonella typhimurium Histidine negative strain for Ames Test. Can anyone help me get it or help me locate a supplier?

More Khalid Masoodi's questions See All

What could be the possible reason that sintering of polycrystalline diamond fabricated with tape casting has suddenly started failing?

I make polycrystalline diamond with tape casting followed by HPHT sintering. When i sintered the samples up till May, the sintering was good. When i sintered the samples in June and July at the...

16 July 2024 3,212 5 View

pharmacogenomics and personalized medicine?

How is pharmacogenomics transforming personalized medicine, and what are the current challenges in its implementation?

05 July 2024 5,082 2 View

Anybody can assist me in Protein and magnetic beads seperation?

Hi, I hope you are doing well, I am working to remove DNA from protein sample by using silica hydroxode magnetic beads. I used different binding buffers but I din't get my protein band in initial...

02 July 2024 5,502 4 View

What may cause whitish discolor of polycrystalline diamond surface, and cracks near edge?

I am preparing polycrystalline diamond (PCD) with tape casting. The powder is 8~12 um. After drying of tapes, I place several tapes in Ta cup without warm-pressing. Next, debinding is carried...

23 June 2024 7,758 2 View

Need assistance in optimizing my protocol. Anyone can assist me about inducing hPSC or iPSC to MSC?

Dear Colleagues, I am currently working on a project that involves differentiating human embryonic stem cells (hESCs) or induced pluripotent stem cells (iPSCs) into mesenchymal stem cells (MSCs)....

19 May 2024 3,164 2 View

A Survey about Awareness and Trust In Self Driving Cars?

https://docs.google.com/forms/d/e/1FAIpQLSe4Ht6uSWs_IOArQZyHYtfYD7aEFJBxFnIgJ46yPQ_k7rbDjg/viewform?usp=sf_link

11 April 2024 3,417 0 View

How do mutations in microbial genomes lead to adaptations to different environments?

mutations play a critical role in driving the adaptation of microbial populations to diverse environments, allowing them to thrive in a wide range of ecological niches.

04 April 2024 8,855 3 View

What are the potential benefits and challenges of utilizing artificial intelligence and machine learning in drug discovery and development processes?

In my opinion, I could say: Benefits: Accelerated Drug Discovery Cost Reduction Optimized Clinical Trials Challenges: Dealing with big data Over-fitting and Generalization Human Expertise and...

01 April 2024 5,706 4 View

Proposing research ideas in the field of social psychology?

Hello to all possible researchers who have a developed research idea in the field of social psychology, specifically the behavior of individuals in groups

29 March 2024 3,809 6 View

Is it possibleto analyze a data set that has dependent variable time series and independent variables are cross sectional?

for example dependent variable is daily stock returns and independent variables are company characteristics such as firm size, leverage etc.

21 March 2024 362 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

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

Paired t-test or unpaired t-test for my quantitative data with SPSS?

I am conducting a qualitative-driven approach to mixed-method research. The role of my quantitative data is to corroborate the findings of the qualitative data. Qualitative data has been collected...

24 July 2024 9,799 3 View

Chi-square test for allele distribution?

Hello, when calculating the p value for the alleles in the table, how do we place the values in the chi-square test in the four-eyed table? Thank you very much for your attention.

17 July 2024 998 2 View

How to calculate Cohen's d from CI 95 and t value from a paired sample t test?

We have conducted a systematic review to investigate the effectiveness of a treatment for a psychological disorder. We aim to report effect sizes and p values of the reviewed studies but one study...

10 July 2024 7,186 4 View

What kind of t-test can I use if I have two variables measured using the same raw data?

I plan to perform a t-test between risk index and leakage values to know if there is a significant difference between leakage values of low, medium, and high risk pipes. However, the data I have...

10 July 2024 6,199 3 View

How to analyse response rates of a questionnaire?

I have developed a questionnaire. I want to try and analyse question drop-off. There is a clear negative correlation between question number and percentage of respondents who answered that...

07 July 2024 9,435 1 View