What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Has anyone succeeded in capturing uranium atoms in a fullerene structure?

Additional questions are: What are the encapsulating atoms? How difficult was the process and what rates were achieved? What factors most seriously affect the economics?

20 February 2021 3,134 5 View

How to phrase semi-structured interview questions using IPA without biasing superordinate themes?

Hello, I am preparing a semi-structured interview schedule for an interpretative phenomenological analysis study on marginalized individuals' career experiences as impacted by COVID-19. The aim...

19 February 2021 9,099 2 View

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19 January 2021 6,848 4 View

Why do my fibroblasts under hypoxia conditions proliferate slower than the same fibroblasts under normoxic conditions?

I am using healthy control lung fibroblasts in a 96 hour experiment with two drugs (nintedanib and Pirfenidone) and vehicle controls for both. I have both hypoxia (approx 1% O2) and normoxia...

12 January 2021 6,260 1 View

How much does radiative heat transfer effect thermal conductivity of materials and how to compare calculations to experirment?

I am calculating the phonon contribution to thermal conductivity for 4 perovskites (BaZrO3, BaSnO3, BaHfO3, and KTaO3) with relatively wide bandgap. When I compare my results for BaZrO3 to the...

27 December 2020 3,232 3 View

Proper method for assessing model invariance following Confirmatory Factor Analysis (CFA) and preceding 2x2 between-subject analysis?

I have produced a good-fitting, reliable baseline model according to CFA. The model contains several factors each loaded by several categorical (ordinal) items. I ultimately intend to analyze the...

15 December 2020 1,668 4 View

How to Reinstall Operating System for a TA Instruments 2910 DSC?

Hard drive crashed on an old windows 2000 that was used to control a TA Instruments 2910 DSC. Installed new hard drive and I am trying to figure out where I can find the software/operating system...

17 November 2020 2,467 3 View

Communities based websites do they serve a purpose?

I'm asking and posing this question as it forms a part of my final project year. I building an ASP.net community-based website coupled with an Oracle database and I'm looking for feedback,...

17 November 2020 7,852 1 View

How can I solve Error: "The coupling service failed to start" during simulation ANSYS 2Way FSI?

Hello, I am dealing with error during lounching 2 Way FSI in ANSYS Workbench. Setup of the Fluent is ok (stand alone I am receiving expected results) and FEM uses Transient Structural. Once I run...

11 November 2020 3,816 4 View

Which cell line should we use to perform biological dosimetry experiments?

We are preparing some experiments based on irradiating cells under different conditions in order to evaluate the effects in terms of DNA damage, genetic expression, etc. As our project is...

01 March 2021 3,355 3 View

Why the inverse square factor is needed for SSD correction, for calibration of in vivo dosimeters as given in IAEA human health reports No. 8?

What is the logic or significance for using the inverse square factor for calibration of in vivo dosimeters (placed on surface) to the dose measured by ion chamber at dmax?

09 August 2020 279 5 View

Does non-animal-derived antibodies work fine?

03 August 2020 9,126 4 View

Where would I find information on levels of demand/need for infrastructure investment in Asia during the 1960s?

I am currently researching the ADB in its first five years of operation 1967-1972. I am interested in evaluating the Bank's impact upon its own goals of development and channeling finance for the...

10 February 2020 7,803 3 View

How gray-sievert radiation dosage equivalency are determined and standardized?

All organs are not equally damaged by same amount of radiation dosage. But, on which basis equivalency is measured? (i..e 1 gray in this organ equals 10 sievert) Is it arbitrarily qualitative or...

20 November 2019 7,736 6 View

How gray-sievert radiation dosage equivalency are determined and standardized?

All organs are not equally damaged by same amount of radiation dosage. But, on which basis equivalency is measured? (i..e 1 gray in this organ equals 10 sievert) Is it arbitrarily qualitative or...

10 November 2019 2,339 6 View

How to Prepare/Test of Lead-Free Sodium Sulphide Solution?

I am working as Scientist at Pharmacopoeia Commission for Indian Medicine, I need preparation/testing method of Lead Free- Sodium Sulphide Solution (10%) with suitable reference of any book/Journal.

31 December 2018 4,992 0 View

Why Plagiarism Less than 19% is allowed? Is there any logic of 19%?

Higher Education Commission allows Plagiarism Less than 19% in Masters and PhD dissertations, Is there any logic of 19%?

16 December 2018 7,810 30 View

Why Plagiarism Less than 19% is allowed? Is there any logic of 19%?

Higher Education Commission allows Plagiarism Less than 19% in Masters and PhD dissertations, Is there any logic of 19%?

11 December 2018 8,505 30 View

How to interpret color difference formula CIE DE2000?

11 December 2018 625 5 View