How best can one separate n-hexane-soluble fraction of plant extract that binds strongly to silica gel columns and what are the possible compounds?

I wanted to elute n-hexane-soluble fraction of a plant extract in a silica gel column using different proportions of dichloromethane/n-hexane. The bands separated visibly initially but moved only...

18 January 2021 9,270 3 View

How do I plot the correlation coefficients (r) on a map based on a list of variables?

I am working to improve a manuscript and I have been advised to provide a map showing where the correlation is significant. Any information or links to learn about this would be quite helpful....

26 December 2020 1,162 5 View

Please l need suggestions from scientists on how to carry out snail vector control to reduce the incidence of schistosomiasis?

Can a snail vector be reared? If yes at what physiochemical conditions? Can a cercariae of schistosome be injected in an animal model? And which is the suitable model?

20 November 2019 1,748 2 View

How do I get access to reliable NDVI Images for computation of VCI and VHI of a given location?

Websites for free downloads; high spatial resolution of images

02 September 2018 1,296 2 View

What may be the cause of this strange J-V curves in perovskite solar cells?

I fabricated some solar cell devices and I discovered that about 30% of the devices gave strange J-V curves as attached here.

09 June 2018 9,315 7 View

What are the vital issues and literature to consult in writing a paper titled "Biogeography: the master voice of the Environment"?

To portray biogeography as having a better grasp of understanding and addressing environmental problems

03 April 2017 4,104 6 View

How can one induce poison on experimental mice?

am working on the antidotes used to cure poison case

19 February 2017 6,661 5 View

How can I set mobile node (MANET) to be in promiscuous mode in opnet modeller simulator?

26 May 2015 4,347 1 View

Can someone help me with a BLTK1 or K9 Murine Leydig Cell line?

01 May 2015 1,375 3 View

Immunostimulatory stimulatory complexes

pls i am working on isolation of saponin from a plant for use as ISCOMS i need an advise on the best and affordable model to use

28 August 2011 8,924 4 View

SDS page software for analysis?

I did sds page to determine the difference in protein expression between 3 types of vaccine , but i don't have scanner or densitometer available. . so i wonder if there is a software to analyze...

02 March 2021 6,270 3 View

Which of the Covid-19 Vaccines would elicit the best immunoprotection and why?

I want to know which of the available Covid-19 Vaccines would elicit the best immunological response and why

02 March 2021 1,388 3 View

Is the sinovac vaccine safe and effective for people over the age of 60 ?

Dear respective researchers, I was asked by my institution to be vaccinated this week using the sinovac vaccine. However, from some of the information I got, this vaccine is not recommended for...

01 March 2021 7,781 6 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

Is there any published or unpublished statistics on dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, US, UK or any other country?

Are there any published or unpublished statistics or papers on the dropout rate (Dose1 to Dose-2) for Covid-19 vaccination in India, USA, UK, or any other country where vaccination has started at...

28 February 2021 4,237 1 View

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 View

If a given country passes mandatory 'vaccine passport rule' to go outdoors, otherwise stay at home, can it help to vaccinate all against COVID-19?

Wether vaccine passport declared not to go out of home without it may help taking COVID-19 vaccine. Can't it break individual's right to protect the community? Your comments on perspectives...

27 February 2021 5,549 23 View

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

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View

In what ways do fellow reaerchers think that mRNA vaccination may be under CRISPR systems technology application ?

There are many ways for mRNA to intervene with genome expression. This question is raised for experts in CRISPR systems. Any RNA does not stand alone within acell. There are many ways to become...

18 February 2021 9,109 5 View