Level 1 pre-post multilevel regression: Panel data or ANOVA approach?

Dear colleagues, I am currently teaching myself in multilevel analysis using educational data. I found few to zero literature on basic analysis methods. In my context we frequently use level-1...

17 February 2021 9,378 5 View

Reliable and Valid Instrument for Causes of Medical Errors?

Is there any questionnaire/survey that measures the causes of medical errors? Example: physician negligence vs. systemic issues. Looking for a reliable and validated instrument. Thank you!

15 February 2021 2,874 4 View

Should the AUC in a concentration-time graph of a subcutaneous implant be roughly the same for poeple?

I have 2 concentration time curves of a subcut drug implant. the first group has a peak around the 50 day mark where as the second group does not. Both groups received the same implant by the same...

10 February 2021 2,305 3 View

Software for flow cytometry-like gating of data sets?

I am currently trying to do image based cytometry from fluorescence microscopy images. From the images I extract data such as cell size and a number of fluorescence intensities. Is there any...

09 February 2021 6,278 1 View

Can A. thaliana splice algae genes?

24 January 2021 329 2 View

Does long term preservation (10years) of Collembola in 99% Ethanol affect recovery rate of extraction by flotation?

Hello! I am currently developing an automated counting approach using Fiji to count Collembola from pitfall trapped samples that have been stored in Ethanol (99%) since 2010. I use flotation (tap...

13 January 2021 659 2 View

Co-stain Lectin PNA FITC conjugate with an uncojugated primary antibody?

Hello, I am planning to stain retinal tissue sections for IHC and want to co-stain cones and rods. For this we plan on using a Lectin PNA From Arachis hypogaea (peanut), FITC Conjugate for cones...

12 January 2021 583 1 View

How to use Abaqus USDFLD subroutine to vary stiffness?

Hi I have a problem where I am trying to vary the stiffness spatially across a structured interface. The whole idea is to vary the stiffness vertically, with a bulk stiffness of 8GPa decreasing...

06 January 2021 262 3 View

I really need help with cov-2 pseudotyped lentivirus production. Support?

Hi, i'm desesperate. i'm trying to produce lentivirus usinf BEI resources kit NR-52948. 24 hours after transfection i detect a massive GFP expression in my 293T cells. After 72 hours i filtered...

30 December 2020 9,889 6 View

How can i estimate the total phenolic content from a plant extract?

Suggestions and recommendations are welcome. A protocol used and experience would also be helpful.

25 December 2020 9,807 4 View

Diabetic patients and religiosity?

How to convince a poorly educated diabetic patient, of high religiosity, who believes that complications will definitely occur with the will of the God however he does

29 December 2020 2,304 4 View

Domestic ancient Egyptian gods and goddesses?

Who are the gods that ancient Egyptians thought of as closer to them and could have a personal connection with them?

25 December 2020 5,505 1 View

Is there any spiritual master today who can give inner experience of Light and sound?

I have been searching for a real Master for about 30 years and till now I have met a number of so called fake masters who misguide you in the divine name of Light and Sound, but no one could give...

04 May 2020 3,939 3 View

Why OCP is differnet when test the same BFC with fruits and animals?

I developed a BFC (GOD anode and BOD cathode), tested it with apple and mouse's blood, the OCP with apple was 0.62V, but the OCP with mouse's blood was only 0.5V, I thought the OCP should be same...

25 March 2020 2,866 1 View

AFM roughness investigatin of non-uniform samples?

Dear colleagues! I need your help. We are now learning a new methodology for us - AFM. So far only the study of morphology and roughness of samples. I see the problem of correctly determining the...

06 February 2020 3,370 3 View

Can anyone help me find an Instrument to measure rogers five attributes of innovation?

I am currently researching voluntary reporting and its determinants through the (DIO) theory of innovation diffusion. I need a measurement tool other than interviews such as questionnaires if...

02 December 2019 6,128 4 View

If I use modification index to improve model's godness of fit within a structural equation model, what should I do and be cautious?

If the latent construct is derived from a survey, can I correlate error terms by checking the questions to see whether the two questions are related to the same topic? If they are, I correalte...

17 September 2019 6,731 1 View

If I use modification index to improve model's godness of fit within a structural equation model, what should I do and be cautious?

If the latent construct is derived from a survey, can I correlate error terms by checking the questions to see whether the two questions are related to the same topic? If they are, I correalte...

08 September 2019 8,686 1 View

What is Righteousness? and how it differ from Justice?

Righteousness and Justice are common buzzwords often used interchangeably that we use in the present data-driven world and without knowing what exactly it mean. The current world has Courts of...

07 August 2019 721 14 View

Could anybody help to teach me how can I calculate the number of photon which a compund solution has absorbed from a visible light source?

I'm using a solution of graphene oxide quantum dots (GOD) to absorb the energy from a visible light source. The bandgap of GOD is 2.3 eV, the light source intensity is 40W/cm2. So how can I know...

19 June 2019 5,092 3 View