Can one predict ventilatory/lactate threshold throughout the 6MWT?

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Statistical test for weight data: 2 different groups overtime? 2-way repeated measure ANOVA?

Hello, I have weights over 5 weeks for 2 different groups (the animals in group A are different from animals in group B). I have thought to use a 2-way repeated measure ANOVA to see if there...

08 July 2024 1,163 3 View

CRAFT 21 Recogntion?

Is there a CRAFT 21 recognition trial?

14 March 2024 8,065 1 View

Potassium Permanganate titration- more hydrogen peroxide detected than what is actually present in solution?

I have been performing titrations of a known concentration of hydrogen peroxide using 0.01N potassium permanganate and consistently requiring more potassium permanganate than what is estimated to...

07 February 2024 446 3 View

Eye-tracking experiment using touch-screen/monitor with young children?

Has anyone used (or attempted to use) a touch-monitor or a touch-screen-laptop for the recording of behavioral responses in an eye-tracking experiment with young children? This would be ideal...

24 January 2024 6,584 4 View

Is Raman spectroscopy available for carbide/carbonitride detection in the ferrite steels?

My goal is to determine the volume fraction of M23C6 carbide and/or MX carbonitride in the ferritic/martensitic steels. Could I use Raman spectroscopy for this goal? If yes, are there the positive...

21 January 2024 9,585 2 View

How can I compare categorical datasets with many factors in R (e.g., polymer types at different locations)?

I want to know if the type of litter found between sites is significantly different. I have 7 stations with polymer IDs for litter from each station. Can I compare two categorical variables...

19 September 2023 6,208 3 View

What impact does the use of artificial intelligence have on the accuracy and speed of laboratory testing in clinical settings?

Medical laboratory technologists are likely to be faced with the challenges brought on by Artificial Intelligence (AI) as laboratory medicine continues to undergo digitization and automation. The...

02 September 2023 6,162 3 View

How many data extracts required for a qualitative dissertation?

I'm currently writing my qualitative doctoral dissertation and I'm not quite sure how many extracts do I need to analyse? Are 30-40 extracts enough for a dissertation?

04 July 2023 3,127 4 View

Tips to improve transfection efficiency?

Hello, recently I’ve transfected some HEK-293T cells with Thermofisher’s Lipofectamine 3000 reagent, but I’ve only gotten a transfection efficiency of about 20-30% using 7.5 uL of lipofectamine. I...

23 June 2023 4,965 1 View

Hello! Is there a chance glucosamine and galactosamine could be separated with C18 column via HPLC?

Hello! I‘m a student and the topic of my research is developing a method for quantitive analysis of glucosamine and chondroitin (in tablets after dissolution) via HPLC-DAD. We‘ve been using...

11 May 2023 2,354 2 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

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

What precautions should be taken while handling S. aureus enterotoxin Type B in the lab?

I would like to understand potential safety concerns while handling SEB in the lab. Especially while working in animal house facility. Would like to know precautions for handling. Sigma MSDS...

07 August 2024 6,034 3 View

Separation of organic acids-HPLC?

Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.

07 August 2024 8,782 3 View

Hello Everyone ! I'm looking for a good journal to publish my manuscript with low publication cost?

I am Looking for a Science Journal with good impact factor and low publication cost to publish a review paper. Your suggestions would be appreciated.

06 August 2024 6,796 3 View

Why activated CAR-Jurkat cell could not kill targets?

Previously when I co-coluture anti-CD19(FMC63) CAR-Jurkat with Raji with E:T=5:1, Jurkat can eliminate Raji in 24h. However, when I test another CAR construct, although I can dectect totally CD69...

06 August 2024 641 2 View

How to understand this crystallographic phenomenon of low temperature crystals in zeolite?

During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...

06 August 2024 726 3 View

How can we use mobile apps for improving students' academic performance?

Mobile apps can be a powerful tool for enhancing academic performance, how can we use mobile apps for improving academic performance

04 August 2024 9,492 0 View

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal?

Any idea about 'International Research Journal of commerce , arts and science? Is it a UGC listed journal? Kindly advice

04 August 2024 7,367 3 View

Are authors sowing for scientific Journals to be reaping the benefits? We are charged for publication but we offer free peer review services, why?

As authors and academic writers, we usually prepare our manuscript using our own resources. We submit these manuscripts to scientific Journals for peer review and publication sometimes at a fee....

03 August 2024 7,304 2 View