T-test and Mann-Whitney U test on groups with different sample sizes and variances?

Hello I have 2 groups with different sample sizes of (experts: 5 to 8) and (Users: 28 to 35) answering 21 questions on a 7 points Likert scale about the importance of some dimensions for...

31 January 2021 3,885 7 View

What are the types of optimization problems that can't be tackled by meta-heuristic and heuristic algorithms?

Any decision-making problem when precisely formulated within the framework of mathematics is posed as an optimization problem. There are so many ways, in fact, I think infinitely many ways one can...

06 September 2020 9,415 14 View

Is it possible to reduce tensile strength and increase compressive strength by adding any admixture to concrete?

Hello, I want to know is it possible that the compressive strength of concrete increase by reducing tensile strength? if yes, how we can explanation and justification this issue?

30 April 2020 4,489 7 View

What are the plans for exams and assessments of universities during corona virus pandemy?

What alternative ways universities use for academic assesment of students?

29 April 2020 3,091 1 View

Is there a specific way to discretize a continuous model to any arbitrary multi DOF system and extract the mode shape matrix in abaqus?

27 April 2020 239 3 View

What is best sampling method for cross sectional studies?

I want to research on liver disease patients behaviours and habits in shiraz city. How can I calculate sample size accurately? Thanks

23 March 2020 9,974 5 View

Anyone in kolkata working of LNCaP prostate cells?

I am working with prostate cancer cells, i want to know who is presently working with PCa cell lines in viro and in vivo in kolkata.any leeds will of great help.

07 March 2020 7,831 1 View

How can I find the IDT point of the following TGA curve which is related to a clay soil?

The attached file shows the TGA curve of a clay soil. Can anyone help me how to recognize the initial decomposition temperature (IDT) from this curve?

06 February 2020 6,944 3 View

How to isolate dorsal root ganglia in rat at lumber region?

For pathological investigation of sensory and motor nerves in lumber region of rat how to isolate and preserve

04 November 2019 8,974 1 View

What's the procedure for validation test of a new design of product (Say Heat Exchanger)?

after 3D design of all components of the Heat Exchanger geometry we do assembly and finalization of the geometry, in CFD analysis we change the boundary conditions and it refers us to the...

27 October 2019 9,095 3 View

What are the values needed for gabor filter's parameter for cifar10 data?

Hi, I implemented a code to gabor filter cifar10 data but the images after being filtered and stacked are not clear like the original images. I think the problem is in the way I am using the...

03 March 2021 6,317 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

Which reagent is best among 'Dimethylglyoxime" and "Dithiothreitol" for spectroscopic determination of Nickel ?

What I think is Dithiothreitol. As it is water-soluble and does not form a precipitate. But, the thing is it contains sulphur which is quite hazardous to aquatic animals.

01 March 2021 8,374 4 View

Which period is considered as study period in research?

Is that starting from proposal development to result writeup or just from data collection to result writeup and reporting (publishing)?

28 February 2021 910 2 View

Which one carries more value? A research paper in a Scopus Indexed conference proceedings or the same paper in a Journal without Scopus indexing?

I am looking for the suggestion among which one to pick from the above two categories for a research work.

27 February 2021 10,025 1 View

Which indexation is better Scopus or Web of Science?

Both are very repetitive indexing agencies.

26 February 2021 9,455 4 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Data Analysis K-S and S-W tests?

Hello, I have conducted analysis where the K-W and S-W have come out as p

25 February 2021 9,648 3 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

24 February 2021 1,356 8 View