What is the best antimicrobial agent among metal oxides?

I am looking for an antimicrobial metal oxide agent for a polymeric implant and I am wondering which one is the best?

21 January 2021 7,068 5 View

Detection of insect eggs in stored and processed products?

Currently, in order to identify insect eggs in stored or processed products (such as contaminated flour or wafer samples), staining was performed based on the method mentioned in the below...

15 January 2021 6,362 5 View

Why pathlines keep changing their patterns?

Hello, I am using ansys fluent to simulate a steady state phenomenon, even though the residual curves are absolutely flatten, pathlines keep changing their patterns over more iteration. I was...

12 November 2020 2,231 3 View

How to simulate fracture in the axle housing ?

Hey there, I want to simulate & analyze the fracture and fatigue (crack growth) in the rear axle housing of heavy tracks (Volvo company) in Abaqus. My question is which method is suitable for...

12 November 2020 3,377 3 View

Do you think Corona-virus (COVID-19) will lead to a new age of environmental behaviors?

It seem individual's attitude to environment are changing rather than last year due to corona virus issues and challenges. What do you think?

27 August 2020 6,394 17 View

How can I request a transimtted force between two nodes when I use tie constraint in ABAQUS?

Dear all, I have used a tie constraint in ABAQUS to attach two surfaces. the meshes of both surfaces are compatible so in front of every node of surface-1 is a node of surface-2. thus the force...

24 May 2020 9,890 3 View

To what extent, the number of people infected by Corona-virus (COVID-19) in a country can determine the level of disaster resiliency in that country?

I want to know if coronaviruses are considered as fixed variable entered in every country, can level of resiliency of that country be determined by the number of infected and dead people?...

22 March 2020 1,120 14 View

Can Corona-virus disease (COVID-19) be an opportunity to increase people sensitivity to the global crises such as climate change?

These days, people are discussing about pro-environmental and protective notions in their life all over the world. It seems this level of consideration should be navigated to a sustainable path....

19 March 2020 1,190 59 View

Why people perceive Corona-virus disease (COVID-19) more different than other global crisis such as climate change?

It is important for me that in what ways understanding of crisis leads to do some actions.

09 March 2020 7,731 38 View

Does it matter to melt a glass composition from room temperature?

In the case of making a glass, do we get different results in terms of structure, properties and etc. if we: 1- heat the mixed raw materials from room temperature to the desired temperature ,...

22 February 2020 2,867 3 View

How vaccines of covid 19 work?

Millions ask how vaccines of covid 19 be successful and safe, its here to explain generally how vaccine of pfizer work ,mRNA vaccines teach our cells how to make a protein that will trigger an...

28 February 2021 2,723 4 View

Where to find data on trees in tropical agroforestry?

Hi, I'm looking for data (mainly related to management: growth rate, canopy size, soil and climate preferences, etc.) about tropical trees used in tropical agroforestry. Have you ever heard about...

28 February 2021 7,356 8 View

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

Your thoughts on the spherical densiometer to estimate relative species canopy cover?

Hi biologists and biogeomorphologists, I want to characterize vegetation plots on a transect that follows a successionnal gradient from a river bed to a mature forest. Ecologically, I am...

26 February 2021 5,720 2 View

Stress/strain tensors decomposition ???

25 February 2021 6,760 1 View

Best plasmid could be used as a standard curve for AAV titration?

I have been trying to have a good AAV titration for my production and I have tried different plasmids to set up as a standard curve but each one behaves differently. i am trying to use ITR for...

23 February 2021 5,167 3 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

How to assure whether a regression tree overfit or not by seeing bias-variance value of the model?

Lets consider a regression tree in which variance is 1.1065*e-10 and bias is 2.962e-13. Also the model RMSE on training set is 1.5e-5 and on training set is 1.2950e-5. Is the model is overfit or...

22 February 2021 7,755 2 View

How to control the variants vof covid 19 in second and third waves?

A the world find means to control covid 19 by vaccination ,new variants came to spread and make the world in fear and danger, to understand the conduct of these variants, es constantly change...

21 February 2021 3,080 6 View

Surprisingly low antibody titers against SASRS-COV-2 RBD in hamsters compared to mice?

21 February 2021 6,958 2 View