ICRP annual dose limit for occupational worker averaged over a period of 5 years is 20mSv. Is it according to the ALARA principle?

Working in an FDG production lab for around 20 years. Does the annual ICRP dose limit of 20mSv/Year avegraged over 5 years (and in a single year upto 50mSv) is following the ALARA principle. Does...

07 December 2020 404 5 View

Vaccine for Coronavirus?

I thought the last couple of days and think that if we know the source of coronavirus then it will help in one or another way. Suppose / for example, if the virus came from snake or mouse then...

11 February 2020 4,893 17 View

How one could extract 100% (or near to 100%) DNA and RNA from a known bacterial biomass and quantify?

Here 100% extraction means a total DNA and RNA extraction from known bacterial biomass. This will not for the quality check but more on the quantification. If there is any published method...

28 January 2020 2,302 2 View

I am trying to do retroviral transduction using platE cells but its not giving good efficiency.Can somebody suggest ways to increase efficiency ?

I use Fugene-3ul/well, pclEco- 0.8ng and polybrene 2ul/ml from 5mg/ml stock. I usually spinfect T cells that I have activated a day before with anti-CD28 and anti-CD3. I use MigR2 plasmid with my...

08 December 2019 3,649 3 View

Is it possible that the peak current of an electrochemical process increases at pH 5, decreases at pH 6 and increases at pH7 further?

In one of our electrochemical experiments, we observed that the peak current suddenly decreased at pH 6 and then again increased at pH 7. Does this relates to the stability of the complex at pH 5...

21 November 2019 7,548 2 View

What is sampling error ?

By using Yamane's formula the required sample size was 250; now can I select 300 samples for performing a logistic regression ?

19 September 2019 6,202 8 View

How 4-fluoroindole and 5- fluoroindole differ energetically?

I have measured fluoresence spectra of 4-fluoroindole and 5-fluoroindole in alcoholic medium at room temperature. The fluorescence intensity of 4-fluoroindole is reduced ~100 times than that of...

06 February 2018 3,247 5 View

How do I avoid polishing twins in pure Mg poly-crystalline specimen? Does anyone have experiences regarding Mg polishing and any suggestions/tricks?

ebsd and ecci qualified polishing

02 May 2017 3,603 1 View

Selectivity coefficient and relative selectivity coefficient of a voltammetric electrode

Please suggest how to calculate the selectivity coefficient and relative selectivity coefficient of an electrode, whose response have been voltammetric method.

01 January 1970 3,347 2 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Do anyone here can help us in the field of molecular docking?

We have synthesized various metal complexes with different environment around the metals. Now to see the application of synthesized complexes we need this study also. we are also interested in...

01 March 2021 1,899 2 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

Why initial concentration of Pb not the same as calculated one when testing using AAS?

I am currently doing research on the adsorption of heavy metal using magnetic reduce graphene oxide. I use AAS to determine the concentration of the heavy metal. I prepare the Pb solution with...

26 February 2021 9,580 4 View

What software programs can directly simulate Additive Manufacturing Directed Energy Deposition (DED)?

I understand there are a lot of software programs that can simulate DED by going through specific modeling, simulation, and commands. For me, that was time consuming and results were not accurate....

24 February 2021 4,428 3 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Can a semi-conductor material have different absorption coefficient?

Does the absorption coefficient of the semiconductor changes with the change in the structure of the semiconductor? If you have a thin film and nanowire of the same semiconductor, will the...

23 February 2021 9,799 4 View