Does Covid-19 vaccine give to pregnant and breast feeding women?

I need to know the safety of Covid-19 vaccine in pregnant and breast feeding women

17 February 2021 504 9 View

How can we calculate the concentration of nanoparticles in a solution ?

1- Absorption of 1 cc of a nm solution of 20 gold particles at 530 nm equals one. Calculate the extinction coefficient of these nanoparticles (consider the light path length of 1 cm). If we were...

30 November 2020 9,274 1 View

How can i collect many blood sample from the rat for pharmacokinetic study without killing the rat??

how can i collect many blood sample from the rat for pharmacokinetic study without killing the rat??

28 October 2020 2,675 8 View

What's the effects of the wet season and dry season on biological soil crusts specially algae (Cyanobacteria and green algae)?

I work the research about stabilization of soil by Biological soil crust especially algae (Cyanobacteria and green algae) Could anyone please help me about this topic soil stabilization using...

17 December 2019 8,682 3 View

No title

04 November 2019 7,867 3 View

Is there researches about "Bearingless Brushless DC motor" that explain the magnetic forces needed for the suspension?

I need researches about "Bearingless Brushless DC motor" about the magnetic forces and the displacement of the rotor that will be measured by hall sensors,,,I am trying to build a matlab...

14 January 2019 1,062 2 View

simulate a brushless dc motor open loop with ?

HI I am trying to simulate an open loop brushless dc motor ,but although Ive followed the exact equations, the results are unacceptable please Ive attached the matlab simulation if any one have...

03 January 2019 6,419 1 View

What are the best mobile phases to identify phenolic acids in ethanolic plant extract ?

Im searching about mobile phases , using thin layer chromatography, for identification of flavonoids and phenolic acids for my research. thank you

30 November 2018 8,197 3 View

Is there a difference in performance and in results when run CFD software on a laptop with Nvidia Quadro graphic card as compared to Nvidia Geforce?

I am inquiring about the best laptop features to run CFD software efficiently so that I get the minimum time of run and the best visual results. Any valuable recommendations are welcomed!

15 August 2018 8,802 5 View

What are the biological factors that affect on erosion in soil ?

There are many microflora in soil such as bacteria, algae and fungi that affect soil properties Are the bacteria present in the soil affecting soil erosion and physical and chemical properties...

12 February 2018 1,294 9 View

How to analyze a particular region of my simulation box in GROMACS?

Hi, I am using GROMACS 5.1.4 to simulate water in contact with a surface. I am only interested to calculate some properties of water near the surface. Let's say at a distance of x nm from the...

03 March 2021 9,989 2 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Benefits of the 24 welled plate?

We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...

28 February 2021 1,149 1 View

Bought HUVEC from Invitrgen.need to revive it.expected it is cryofreezed in DMSO.Do I need to remove the DMSO for plating the cell for the 1st time?

After I cryofreeze the cell do I need to remove the DMSO for culturing the cell for next passages .

28 February 2021 7,738 3 View

For gelatin coating for culturing HUVEC.Should the gelatin be made in sterile water or PBS? Do I need to autoclave the gelatin soln after making it ?

I want to use 0.1% gelatin. Should that be made in PBS or sterile water? Should I autoclave the gelatin soln after making it in water/PBS?

28 February 2021 274 2 View

Can bacterial suspension be pipetted directly onto petri dish and agar poured onto it?

Hi, recently I encountered a protocol for plating which was not the usual method I have been practicing (pour LB agar onto plate, allow it to solidify, pipette bacterial suspension onto plate,...

28 February 2021 7,292 3 View

The reason that the culture of white fungi Contamination with green mold(Trichoderma), the culture autoclave at121 for 15 min. What is it?

Is the period to autoclave not enough? The inoculation in a hood and flame and UV and alcohol.

27 February 2021 9,356 3 View

Why do my MCFs not form monolayer?

Hello, I am looking for some expertise on culturing MCF7s. I purchased them from ATCC and I have been following all media and culture conditions. Media is EMEM with 10% FBS and 10ug/mL of...

27 February 2021 3,904 2 View