Fetta Mehouel

9 Questions 31 Answers 0 Followers

Questions related from Fetta Mehouel

What is the PCR technique used in Virology for the detection of viral nucleic acids for RNA and DNA viruses?

Dear virologists; What is the PCR technique used in virology to detect viral nucleic acids? The steps involved. I'd also like to know, since some viruses have a single strand of DNA and RNA, how...

29 February 2024 1,756 10 View

How to prepare samples for virus research and observation under the electron microscope?

Dear researchers Please, I would like to know how to prepare the samples for the research and observation of viruses under the electron microscope? What is the best electron microscope to...

06 February 2024 4,895 2 View

What's the most common nematode found in water? and what's the method of investigation in vitro?

Dear parasitologyst researchers, In order to research the helminth eggs in treated water. We looking the most species found and the method used in the laboratory to identify them. Thanks

27 December 2023 8,024 2 View

Please, any authentic conferences related to food security in United States of America?

Dear ResearchGate community, I'm looking for a conferences or link for finding conferences on food security/ food chemistry/ food toxicology in United States more precisely in New York and...

05 September 2023 1,260 2 View

S'il vous plait; comment calculer la fréquence cardiaque sur un ECG?

Je cherche une technique fiable pour calculer la fréquence cardiaque sur le tracé d’électrocardiogramme ?

06 May 2023 2,206 4 View

Please, do I need a second dose of Johnson vaccine?

For the Covid Johnson vaccine, is one dose sufficient for a person already vaccinated (3 months after the vaccine) or is a second dose necessary for better protection? Thanks in advance

24 December 2022 1,702 10 View

Please, what are the permissible limits of the As in milk and in the meat of cattle, sheep and poultry ?

I need the new data of Food Standards Australia New Zealand (FSANZ)/ Joint FAO/WHO Expert Committee on Food Additives (JECFA) or other regulations.Thanks.

09 August 2022 8,161 11 View

What are the latest WHO permissible limits of As, Cd, Pb, Hg and MeHg in seafood species ?

Please I need the WHO permissible limits of As, Cd, Pb, Hg and MeHg in fish. WHO permissible limits of Cd, Pb and Hg in soft parts / muscle of Mussel. WHo permissible limits of Cd and Pb in shrimp.

30 August 2021 5,100 4 View

The difference between the toxicological reference value and the oral reference dose during chemical risk assessment ?

the difference between the toxicological reference value and the oral reference dose during chemical risk assessment

03 February 2020 5,414 4 View