Is there any standard/minimum/maximum number for the initial interviews? Any References?

Hello, I am going to follow the snowball or chain referral sampling technique as the sampling frames and information on the target populations are unavailable in my qualitative research focus. I...

12 October 2020 2,785 6 View

Can anyone suggest the works of literature which advocates using a Qualitative approach in exploratory social science research?

Hello I am planning to conduct exploratory research in the tourism area and now I am trying to develop a research method framework. Will it be appropriate if I follow the qualitative research...

05 October 2020 2,705 5 View

ANSYS FLUENT is only launching in parallel. Can somebody please help?

My fluent is not launching in series at all, even when I uncheck the parallel option and i also have no option for using series. Please help!!! Many thanks!

04 September 2020 4,199 4 View

I am trying to simulate an electric arc formed because of current flowing through air between 2 conductors in ANSYS Fluent. Can i use MHD module?

If i use the MHD module, i will have to provide the values of external magnetic field, but isn't the magnetic field established as a consequence of the current flowing through the air? How am i...

15 August 2020 200 1 View

Removal of dead cells before harvesting for Proteomics?

Dear all, I am culturing some suspension cell lines. I am planning to perform proteomics (LC-MS/MS) experiments on them. Unlike adherent cells (viable cells are adhering to the substrate and...

03 March 2020 2,329 3 View

Enrichment of AHA-tagged proteins: Should I use DBCO- or Alkyne-based methods?

Dear colleagues, I would like to seek your kind advice on click chemistry enrichment of azidohomoalanine (AGA)-tagged proteins. From literature, I learned that there are 2 main avenues, either...

18 February 2020 8,725 2 View

Is there an alternate for UV Ozone treatment in order to pursue ETL surface modification?

I wish to deposit a perovskite layer over ETL (SnO2) in order to fabricate the n-i-p planar device and could notice the role of UVO treatment prior to deposition. I was wondering if there any...

28 January 2020 3,310 2 View

Why do you need to preheat antigen retrieval buffer?

I'm troubleshooting immunofluorescence staining for some antibodies. Some work fine with my protocol [H2AX, Ki67, 3-nitrotyrosine], some stained once and never again [8oxoG], and some won't stain...

21 April 2019 5,510 3 View

What is the ideal activation time for stain-free gels?

From Bio-Rad's user guide (see below) it is not clear to me what is the best activation time to use. It states that 1 min gives optimal results for WB followed by immunodetection, but that 5 mins...

25 March 2019 1,508 4 View

Who knows a good surgical monitoring system for mice?

I am looking for a good surgical monitoring system for mice, mainly ECG recording. For different suppliers it is mostly the same Scintica Rodent Surgical Monitor+ system. Does anyone know a...

02 March 2019 5,069 1 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

How to Eliminate cosine error and abbe error in LASER measurement system(for example Rhenishaw XL80)?

I like to do project in laser measurement system. My objective is to eliminate or reduce the cosine error, abbe error in Laser measurement system. I have Rhenishaw XL80 system. Please tell the...

28 February 2021 4,890 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

Could the "incoming radiation (net radiation)" values be negative?

Could the "incoming solar radiation" values be negative? What is the difference between "global solar radiation" and "incoming solar radiation"? Which one might be measured negative values?

21 February 2021 7,726 9 View

Can I follow Researchers from Teaching and testing areas?

I want Researchers from Educational Measurement and Evaluation, relating to teaching, learning , academic performance and test validation

18 February 2021 4,757 13 View

How to determine measurement uncertainty of a mass balance?

Hi everyone, I work at a factory plant where they use a mass balance. The problem is that there is an huge difference between the input and output of one element. There are several people working...

10 February 2021 5,764 3 View

Translating two biomarkers to the same scale??

Hello researchers, I was wondering if anyone had experience in the following: I would like to translate two separate continuous biomarkers (A and B), that are mechanistically linked to each...

25 January 2021 2,107 3 View

Similarity between these two waveform? Similarity in terms of Shape?

Hi, These are the outputs generated by a system. Green-colored (nr) is desired output, while the system generates Red-colored (nf). I also have a dataset in CSV file. For this waveform, What...

21 January 2021 929 2 View

Is there any way to know if there is a lower threshold of the RMSE of a model?

I am trying to lower the RMSE of my model as much as I can and I am wondering if there is a way to estimate the lowest it can get based on general characteristics of the model. (e.g. the amount of...

19 January 2021 5,931 3 View

[Measurement invariance] - Do you test it on the full SEM model, on each construct separately, or both?

Hi everyone, I would like to know whether both cultural groups interpreted my questionnaire in a similar way. To do so, I conducted a measurement invariance analysis on the whole model of latent...

14 January 2021 1,845 3 View