Is it okay to divide data into three age groups and prepare separate (same structure) PLSPM based (SEM MODELS)?

The whole data was collected on Likert scale. I am using Prof. Gaston's plspm package in R for SEM modeling. I think different age groups must have differences. But, I can't test differences of...

01 December 2020 3,728 8 View

How to fix the warning message of "Warning message: Setting row names on a tibble is deprecated" in R?

I am using "PLSPM" package in R. I received a warning message of "Setting row names on a tibble is deprecated". I am not an expert in programming. I want to know what are the effects of this...

24 November 2020 9,984 5 View

How to remove water from plant extract??

Hello everyone, I hope these words find you well. I used 80% methanol (solvent) for seaweed's extraction. I have performed rotary evaporator extraction in order to evaporate methanol but there is...

16 October 2020 5,598 8 View

How can we check the real content of calcium in the protein samples?

03 August 2020 4,309 3 View

Sample size calculation based on hospital population?

hi, if we are doing a single centered study, can we estimate/calculate sample size based on patients in that hospital? e.g i want to conduct a research on stroke patients. so my population will...

22 June 2020 5,217 5 View

Capability of MCNP6 in Muon tracking?

Is MCNP6 able to simulate galactic cosmic ray specifically Muons ? if yes does it have any energy or cross section restrictions?

16 June 2020 9,049 3 View

How empathic concerns influence one's behavior through Theory of Planned behavior?

I am looking for some research articles, bulletin, research papers as a reference to support the idea that Empathic concern (one's feeling of empathy) influence the helping behavior via Attitude,...

24 April 2020 6,011 6 View

Can we Use wild rats in Ultraviolet A related experimentation?????

Hi all, can we use wild rats in experimentation for UVA exposed photoaged rat skin model. and later to use some biomedical materials to examine the anti-photoaging potential of that biomedical...

09 March 2020 8,619 3 View

Can anyone provide or suggest some reliable articles on second order SEM modelling using SmartPLS.?

Hi everyone. I need some article to understand the second-order SEM modelling using PLS. If anyone can suggest or can share I shall be highly grateful.

03 March 2020 8,605 6 View

Help me construct a research topic on : open drug market and rising spate of drug abuse?

i need assistance on to construct a better research topic on the role of drug market on rising spate of drug abuse.

28 February 2020 8,251 3 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

How to read a flow cytometry graph detailing cell cycle?

Hello everyone, When determining cells in different stages of the cell cycle, cells are stain for Brdu and Propidium Iodide. I understand how PI can be used to discriminate between G1 and S/G2...

18 February 2021 3,920 3 View

How to report Fishers Exact test from SPSS in a report properly?

I am wondering how do I write the data I have collected from my fishers exact test into words so that it backs up my work? the exact sig.(2-sided) was 0.033, meaning it is significant because its...

17 February 2021 3,441 7 View

Aspen Plus Error: Unknown or undefined bead number?

Hello, in my Aspen Plus Simulation (see attachment) there are two heat exchangers. One HEX1 (oil+gas) ist fed by hot gas which ist coming out of a burner. The other HEX2 (gas+gas) shall work as a...

14 February 2021 8,096 2 View

GST assay in microplate?

I'd like to know if anyone can provide me with a protocol for traditional GST enzymatic assay (with GSH and CDNB as substrates) in a 96 well microplate, for cell line and/or C.elegans...

11 February 2021 1,328 3 View

Does anyone have a stack of images of action potentials or abnormal brain scans?

I need a stack of black and white .jpeg/.tiff/.jpg/.png images across time of either action potentials, neurons firing, or brain scans (comparing disease and normal brain, disease progression,...

09 February 2021 2,648 3 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

The reason of PMMA channels cracking?

07 February 2021 3,663 2 View

How to test the equality of two proportions with multiple samplings?

02 February 2021 9,574 5 View

Western blot transfer problem - what could cause it?

Hi everyone, We are doing western blot with yeast protein extracts. We are applying a wet transfer method using Tris-Gly as a transfer buffer (with 10% methanol) and running it with constant...

25 January 2021 4,228 6 View