How to plot predictions from a cox model with interactions, in R?

29 October 2020 2,605 1 View

Are there methodologies for evaluating the impact of innovation?

Are there methodologies for evaluating the impact of innovation? The impacts on innovation are usually associated with the innovative process or the application of innovation itself and is...

27 November 2019 6,089 4 View

What is the difference in the levels of participation of communities between inclusive innovation and social innovation?

What is the difference or similarities in the levels of participation and appropiation of communities between inclusive innovation and social innovation?

19 September 2018 1,478 5 View

How theoretically explains the symbiosis between Chlorella and other microorgnaimos?

What book would you recommend to understand symbiosis, its importance and relevance in biotechnology

16 February 2016 4,919 3 View

In a mixed model, what is the effect of including a correlation or a "weights" structure on the different variances components (random and residual)?

Dear all, One can use a mixed-model framework to estimate repeatability (R) of a trait, for example a behavioral trait. Repeatability is calculated based on the two variance components obtained...

03 June 2015 4,110 2 View

Can anyone suggest a software to extract behavioral variables from a video?

07 July 2014 651 20 View

Can anybody explain photon drag?

When a photon goes through a material that is moving perpendicular to the photon very fast, when the photon exits the material it will be displaced horizontally by a certain distance. Where does...

20 January 2014 5,551 4 View

Response surface applied in crystal parameters optimization

Someone of you had used response surface analysis to optimize parameters in material design (specialy in crystal structures)? What articles do you recommend?

20 March 2012 2,100 1 View

Response Surface Methodology applied in crystal parameters optimization

Have you successfully used response surface analysis to optimize parameters in material design (especially in crystal structures)? What articles or methods do you recommend?

20 March 2012 6,096 1 View

Impedance coupling design on Linux

We need to simulate and design and impedance coupling type exponential taper. I know CST Studio but this a commercial liscensing software. Does anyone know of a related software in open source or...

18 March 2012 210 1 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

No title

03 March 2021 5,360 2 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

Issues with Permeabilization during Flow Cytometry?

Hello Everyone. Currently I am working to characterize macrophages in the myocardium after ischemia-reperfusion injury in rats. Due to the low total cell number isolated from rat hearts I can...

01 March 2021 3,867 3 View

Good morning research fellows, Has anyone worked with senna alata plant extract on any kind of fish?

Literatures on the piscicidal effect of sennaa alata is scanty. if you have any related litrature either in the bark, leaves or roots used as treatment to any aquatic organism please kindly help...

28 February 2021 9,138 2 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

Unknown debris sheets observed in cell culture flasks?

Hi, We culture neural progenitor cells in T175 culture flasks coated with PLO-Laminin. We have successfully grown these cells with our protocol for months. Recently, we observed large sheets...

25 February 2021 3,443 4 View

Experimental Design: How deal with pseudreplicates with immunological and clinical-chemical paramaeters?

Hello everybody, I am investigating the influence of a toxinon various clinical-chemical and haematological parameters in fish. I have three treatments (control, low dose, high dose) in my...

24 February 2021 1,243 1 View

Hi i want to ask that in order to find out LC 50 (96 hours) of particular toxin for fish. Should we keep the animals with food or without food?

if we expose the fish after acclimatization to particular toxin in order to find out LC 50 (96 hours).Should we keep the fish off feed or with feed for that duration. Some literature show that...

24 February 2021 357 2 View