Is my GE Logiq 3 ultrasound just not recognizing its probes?

Anyone have experience with this type of ultrasound? I'm trying to figure out why this machine (donated without much information and old enough it's past warranty) isn't creating a live image....

04 May 2018 435 0 View

Issues with imaging Stain-free gels without using Biorad's imaging system?

I'm trying to do total protein quantification with Stain-free precast gels and after a lot of reading and many phone calls with Bio-rad, I am confident it's possible to read the gels and membranes...

02 March 2017 6,568 3 View

Does anyone have any Western blot protocols using the Bio-rad "stain free" precast gels?

I don't have the bio-rad imaging system so I am trying to use a UV illuminator to "activate" my gels after running them for Western blot analysis. Does anyone have any experience with this? I...

01 February 2017 3,570 2 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Would fecal samples stored at -20C for over a year impact metagenomic analysis?

Dear All, I have access to some rodent fecal samples that have been stored at -20C instead of -80C. Anyone have experience with the impact of stowage condition on comparative metagenomic analysis...

01 March 2021 2,512 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

How to compare 2 samples recruited with different sampling methods?

If I want to compare characteristics of 2 groups of patients, one group is recruited from a random sample of the general public while another group is from a sample with a fixed gender (male to...

26 February 2021 3,526 3 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Any recommendations for methods to analyze elephant space-use (using GPS) and correlating this with changes in NDVI?

For my Masters I am looking into elephant space-use and its effect on vegetation change. I have elephant GPS collar data and was going to use Google Earth Engine to obtain NDVI values. I would...

16 February 2021 7,097 3 View

How do you annotate figures to show significance?

30 January 2021 1,008 3 View

Question regarding investigation of the nature of bacteria: whether it can cause human diseases or not?

Hi all, Considering that one has the whole genome sequence (annotated) of a bacterium and wants to know if it has the potential to cause human diseases, what steps would you recommend...

26 January 2021 8,732 3 View

What makes yellow color appear in phosphorus sample after autoclave digestion?

I was using autoclave for digesting water samples for Total phosphorus measurement with ascorbic acid method. The autoclave was set to perform 2 hours digestion and around 121 Celsius degrees. I...

25 January 2021 206 3 View

Can the sample used for pilot testing be included in the final research sample? do you have any citation for that?

I need citation from the previous studies about to include the Pilot study sample size with the final sample size thank you

24 January 2021 4,670 5 View