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

How the plato's curriculum theory satisfy the modern education pedagogy????

If yes or no justify

02 October 2020 3,395 3 View

Does Aristotle have a term and a theory for what the Scholastics have named "ens rationis" as opposed to "ens reale"?

Scholastics have called "entia rationis" those objects, which do not and cannot exist in reality but only within the mind, such as chimaeras, privations (like blindness), negations...

19 July 2020 4,667 22 View

Isn't it time to reduce the working week? Working all, less and better. I can't find recent and relevant research on the topic. Can you help?

Dear Colleagues, many challenges ahead of us. The pandemic crisis and its repercussions on employment, the coming climate and ecological apocalypse, the aging population (especially in some...

14 July 2020 9,573 2 View

How is the a priori knowledge of identity (of indiscernibles i.e. a=b) and self-identity (a=a) possible?

We, humans, couldn't have abstracted the identity of indiscernibles and self-identity from our sense perception; the existence of space precludes the possibility of two objects (a,b) being...

06 July 2019 884 13 View

Can I combine two my profiles - Vladimir Ivanov - Saint Petersburg State University and Vladimir A. Ivanov - Saint Petersburg State University?

Please help me to combine my profiles Vladimir Ivanov - Saint Petersburg State University and Vladimir A. Ivanov - Saint Petersburg State University

05 June 2019 7,545 3 View

Why do we classify insects?

At first Aristotle tried to name and classify organisms based on structural similarities, and described ~520 species of animals. He believed that a name should reflect hidden reality or essence,...

04 May 2019 6,330 4 View

Are true teachers NOT Saint?

I think true teachers are Saints. What you think about them?

01 February 2019 2,455 6 View

What is courage?

Plato does not conclude in the Treatise on Courage (laches) and does not express the final concept of courage. Do you have the conclusion of the concept of courage in this book?

11 December 2018 9,335 1 View

Plato's "Constitutie Politeia" : what to do if your country's banks and media are taken over by wicked looters?

In "Constitutie Politeia", Plato explains -through Socrates- how a state should take form, by the respect of every citizen's rights and duties. Thrasymachus on his side declares that the best is...

10 November 2018 418 15 View

Is the motion capability a special feature of the object?

I have a question in the subject of kinematics in physics. Aristotle introduces physics as a science that discusses the motion of objects. Is this definition complete?

09 October 2018 6,555 0 View