Hi to all researchers I have few questions about COVID-19.?

Arif Ulah @Arif-Ulah

05 May 2020 0 8K Report

Is temperature is effective for control COVID-19?

After how much cluster the COVID virus died ?

Is blood type effective for protection from Virus?

Is structure of virus change time to time?

More Arif Ulah's questions See All

How Can I Resolve a Persistent Unwanted NMR Peak at 1.25 ppm?

Hello everyone, I am facing a consistent issue in my NMR spectra with an unwanted peak appearing at 1.25 ppm. This peak seems to vary with the amount of sample: it becomes more pronounced with...

15 July 2024 9,065 4 View

Can anyopne help me with Ac magnetic propoerty measurement (Fe Core Loss) using BH analyser ?

I am working on magnetic materials. I need to measure the iron core losss for my samples. can anyone help me with Ac magnetic propoerty measurement (Fe Core Loss) using BH analyser if possible? i...

26 June 2024 7,176 0 View

Precipitation of bisphenol based polymer ?

can any suggest a suitable solvent or mixture of solvent for the precipitation of Bisphenol -A based polymer.I tried many solvent and combination of solvent but I couldn't precipitate it

07 May 2024 2,766 6 View

Precipitation of polymer from DMSO?

can any one suggest a solvent for the precipitation of polymer (polycondensation of Bisphenol A and dimethylamino benzaldehyde) from DMSO? I tried water,cold water,alcohol,diethyl ether,ethyl...

25 March 2024 5,605 0 View

How to quantify active or folded protein left after exposure to DMSO?

I am working on an enzyme and checking its stability in different solvents. One of the solvents is DMSO. I am interested in checking how much active or correctly folded protein is still in the...

24 March 2024 1,843 6 View

Precipitation of copolymerised vinyl pyridine and vinyl imidazole in DMSO?

Can any one suggest a solvent for the precipitation of polymer (copolymerised vinyl pyridine and vinyl imidazole) from DMSO.

17 March 2024 780 5 View

What descriptive statistics are relevant for my project?

I am doing a project - comaprison of ethnic minority and majority mental health in terms of their past experiences of racism, discrimination and bullying. Im unsure what descriptives I need and...

04 March 2024 3,320 1 View

Https://doi.org/10.1016/j.ijhydene.2023.09.082 kindly provide this research paper?

Alkali-resistant poly (vinyl benzyl chloride) based anion ex... (Alkali-resistant poly (vinyl benzyl chloride) based anion ex...

27 February 2024 533 0 View

Precipitation of polymer?

can anyone suggest a suitable solvent for precipitating the polymer which is prepared by quartenising a basic polymeric(copolymerised vinyl pyridine and vinyl carbazole) backbone with benzyl chloride

27 February 2024 7,128 4 View

Polymeric membrane casting issue?

I have tried several time for casting a membrane polymer in NMP solvent over hot air oven and hot plate for making membrane thin film but every time I failed to make it,it form a sticky gel like...

25 February 2024 1,476 4 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

E-commerce businesses, COVID-19 and Entrepreneurial Strategies (innovation, proactiveness and risk-taking)?

Hello: I am looking for articles that address e-commerce businesses and COVID-19 survivors, as well as Entrepreneurial strategies that reflect e-commerce businesses. Blessings Evelyn Dempsey

05 August 2024 5,332 3 View

How can I find access to heavy metal reference doses from the EPA and WHO websites?

Reference dose and Maximum acceptable concentrations HMs

03 August 2024 8,230 4 View

Seeking latest research on social protection in northeast Nigeria, Yobe state. How does it compare with other states?

What has been the social protection outreach like in Yobe state. Which areas are challenging for the government departments and what capacity building would be most effective? Comparison of the...

21 July 2024 9,887 1 View

Why not we are following sars COVID 19 guidance?

If the case of Irak is of December 2020 then i think I can suggest pl follow all the infection cause and death, already in our researchgate.

19 July 2024 3,356 2 View

Can I detect the FLAG sequence of my AAV vector by qPCR?

I am treating human cells with an AAV vector encoding for my gene of interest tagged by FLAG. I want to quantify the mRNA expression of my gene of interest via qPCR to discriminate the endogenous...

14 July 2024 8,482 3 View

Is the protecting group boc of the amino group stable at 37°C?

I have a small molecule reagent with a boc-protected amino group. Now the reaction needs to be reacted at 37°C for 30 h. Is this protection group stable?

12 July 2024 3,745 2 View

Intracerebroventricular (ICV) AAV inj.?

I'd like to know if anyone has got experience in intracerebroventricular (ICV) AAV inj. I am looking for a concomitant spread of the AAV including but not limited to the motor cortex and the...

12 July 2024 781 0 View

How to improve my plaque assay for influenza virus?

I used MDCK cells for my plaque assay for influenza virus and seeded 950,000cells/well in 6-well two days before infection. The virus was diluted in FBS-free MEM with 0.5ug/ml TPCK-trypsin. Here...

11 July 2024 5,669 5 View

Does anyone know how to improve calcium-imaging fluorescence with GRIN lenses?

Hey everyone, I've been working with GRIN lenses (Inscopix) for almost 1 year and still had no luck seeing strong fluorescence on them. When I look at them, I can see good blood flow and,...

08 July 2024 5,178 2 View