How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

What pH condition required to coat APTES on silica coated Fe3O4?

It's a hydrolysis reaction, which may produce by either acid or base-catalyzed reaction. so can anybody help me with this, which condition is suitable for this reaction?

26 February 2021 1,760 8 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

What condition required for coating of Fe3O4@SiO2 by using APTES?

I tried coating Fe3O4@ SiO2 by using APTES in 5% water-ethanol but it is not coated. Kindly suggest a solution for it. Thanks

24 February 2021 5,992 4 View

Special issue on PLS-SEM in Mathematics. Are you interested?

21 February 2021 5,601 3 View

How to improve the buffer capacity of sea water?

Hello everyone I would like to improve the buffer capacity of seawater (pH ~8) in order to dissolve as much CO2 as possible without dropping the pH below 7.5 (a range between 7 - 7.5 is...

17 February 2021 2,797 2 View

How can I prevent bubbles from forming under a coverslip?

My colleague and I are having some trouble mounting 70 micrometer mouse brain slices. When we initially position the coverslip over the mounted slices, there are no bubbles but when we come back...

10 February 2021 3,580 1 View

Failed Chromatograms on HPLC-ESI Orbitrap?

Hello fellow researchers, I recently have a problem with an HPLC coupled to an Orbitrap mass analyzer. I usually use some protein mix to make sure the equipment is ready to separate and read...

09 February 2021 3,595 8 View

What recipe of homemade lenti-virus concentrator do you use?

My lab is using a lenti-X concentrator. And we are looking for a homemade recipe. I have tried this recipe....

08 February 2021 5,965 1 View

What is a variabel to analyze empirically or attest a theory of Malthus (Economic Major)?

I have a project to evidence Thomas Robert Malthus theory about a principal of population (Malthusian Spectre/Malthusian Trap). I want to attest, his theory about a relationship of population and...

02 January 2021 8,146 3 View

No title

Entre mi alumnado me encuentro con un alumno con problemas cognitivos donde no es capaz de expresar emociones ni gestionarla y me gustaria encontrar articulos y recursos para poder tratar con el...

10 December 2020 8,292 6 View

What is the best way to conduct meta analysis ?

24 November 2020 1,318 8 View

What are different ways of assesing school leadership education through school leaders?

Hello all, Early next year I'm planning to evaluate a training for school principals. I will collect data from school principals with experience (what that entails is to be defined, but they...

13 November 2020 2,226 4 View

Choosing component for creating index ?

While creating a wealth index using the household asset (dichotomized ), Can we take the second principal component (comp 2) if it has more relative positive eigenvectors (For example: as shown in...

03 October 2020 1,917 2 View

How do one construct a single or Overall PCA "Index" and Interpreat it?

I am using Principal Component Analysis (PCA) to create an index required for my research. My question is how I should create a single index by using the retained principal components calculated...

31 August 2020 5,863 3 View

Is compressive stress equal to minimum principal stress in ABAQUS Software?

After having result in ODB file format for ABAQUS software, is it correct to take minimum principal stress as compressive pressure and Maximum principal stress as tensile stress. Because when we...

23 August 2020 4,255 1 View

How to estimate the sample size of a hypothetical clinical trial based on principal component scores?

I am wondering whether there is any relevant literature on how to best estimate the sample size of a hypothetical clinical trial with various treatment effects (10%, 20%, 30%) based on the scores...

12 March 2020 9,200 3 View

Do you know any Excel prepared for probabilistic sampling?

There is software that could be used to do the sampling, but maybe someone has developed any Excel sheet to do the process easily. I would like to do a multi-stage including principally clusters...

05 March 2020 6,627 3 View

How to calculate Cronbach alpha for principal components?

I am using principal components to identify the main dimensions in a 19 item motivation scale. How can I assess the reliability of each component in SPSS?

17 February 2020 2,412 4 View