How long do vaccines protect us against COVID 19?

Or will we have to get vaccinated every year, as in the case of influenza?

27 February 2021 1,048 5 View

Can you trust vaccines that were made in a year, will help fight Sars-Cov2?

That vaccines have been produced in such a short time, makes me doubt if they will help fight this pandemic and if they will not do us more harm.

06 January 2021 3,469 19 View

What do you think about social exclusion?

The social exclusion is a problem very important for society, we should all help those most need

12 March 2020 1,152 3 View

What books on anticancer potential of polysaccharides obtained from fungi recommend me to read?

I am investigating the medicinal potential of the polysaccharides present in edible fungi native to my country and that can help prevent or treat some types of cancer.

16 February 2020 7,775 3 View

Quickly pellet floating fatty cells in culture plate?

Hi, I have fatty floating cells in culture medium and I need to simply/quickly pellet them without degrading cells nor removing themfrom the plate. Any idea ? thanks

21 March 2018 4,569 3 View

Hi, could anyone give me some advice to clean the glassware from the excess of polymer urea-formaldehyde ? Thanks

The cleaning of the glassware after the synthesis of PUF particles is very difficult and almost impossible to remove completely the polymer attached to the walls, neither with acids, neither NaOH...

14 May 2017 5,577 3 View

Which site-directed mutagenesis kit is the best for more than 130 pb deletions?

Please, I need some advice. How to make a deletion in the middle of the gene?.

11 February 2017 3,785 4 View

Who could donate Pseudomonas putida KT2440 and a derivative of it expressing T7 RNA Polymerase?

I would like to transform them with the same gene but in two different configurations. One with the gene of interest under Ptrc promoter and the other under Pt7 promoter.

12 January 2017 2,962 2 View

Alpha-MSH staining in PVN. Cell bodies stained?

10 January 2017 6,627 3 View

No title

Hi, Some weeks ago I sent some paraffin blocks and sections (mouse tissues from a very important experiment) to another lab and just today I was informed that the person who received the package...

03 January 2017 6,247 6 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

How to access MSCI KLD Stats and Sustainalytics?

Hello all, I'm currently working on my undergraduate thesis and I'm having difficulties trying to access KLD Stats and Sustainalytics because my campus Airlangga University and apparently other...

02 March 2021 8,525 1 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

How to define tie constraint between rigid body and another part in dynamic explicit model of Abaqus?

Hi dear researchers I connected a rigid body into the part of my structure by tie constraint and then I added displacement to rigid body, in static general step every thing is fine and these two...

28 February 2021 3,442 2 View