Methodological confusions regarding deductive and inductive reasoning, hypothesis and theory test?

Hi Colleagues- What do you think about the following methodological issues: 1. Is it methodologically wrong to formulate quantitative research questionnaire based on inductive reasoning? 2. Is it...

21 February 2021 4,634 6 View

Are there alternatives to the Devarda alloy when estimating nitrogen?

Are there alternatives to the Devarda alloy when estimating nitrogen? devarda alloy is reducing the nitrate to ammonium

15 February 2021 8,838 3 View

Up to what extent website personalization can help in creating urge to buy impulsively?

Up to what extent website personalization can help in creating urge to buy impulsively? The digital transformation is making most of the organizations to go online and start doing business through...

09 February 2021 4,430 6 View

Observation instrument for classroom activity in consecutive interpreting?

Hello everybody My research involves an intervention where an instructor delivers a training course to students. My role as a researcher is to write down observations. Do you have any idea about...

03 February 2021 6,853 3 View

Can anyone help to convert ODK XLS into XML?

We want to conduct a verbal autopsy using WHO adult VA updated tools in ODK. The current version of WHO adult verbal autopsy tools is v1.5.3. I have successfully converted VA ODK-XLS v1.4 into XML...

03 February 2021 844 2 View

What is the best way to encode categorical variables in datasets with many features and avoid increasing dimensionality of the dataset?

I am working with a large dataset that has many categorical variables with many classes in each variable. I want to encode the categorical variables without increasing the dimensionality of the...

31 January 2021 6,986 3 View

May I know how to determine the acceptable intakes for new types of nitrosamine discovered in drug?

Currently only common nitrosaminse like NDMA and NDEA have mentioned the acceptable daily intake. Based on EMA guidance, should refer to ICH M7 chapter 7.5 guideline. I have read but could not...

20 January 2021 522 1 View

What is the best way to define and decide sample size in the case of cross cultural studies?

What is the best way to define and decide sample size in the case of cross cultural studies? I want to decide the number of respondent in two countries which I am considering for my study. One of...

09 December 2020 1,661 11 View

Which MATLAB/PYTHON solver is efficient to solve nondifferentiable nonlinear subproblem?

02 December 2020 2,381 3 View

Dissolution study on nano co-crystals ?

Hi, SO I prepared nano co-crystals and I have done a dissolution study on them, the thing is I'm getting 130% of my co crystals at the end of dissolution which doesn't make sense !! I have...

26 November 2020 8,816 4 View

Is there any test to determine the cardiovascular risk of patients with obesity? from the perspective of obesity?

We found tests to determine cardiovascular risk taking into account lipid profile, blood pressure, age, history of diabetes, other laboratories. But when weight is involved, there is a paradox. I...

02 March 2021 6,036 1 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View