How we can dissolve theophylline derivatives for the MTT test?

I have a question about your letter, Fluorescent phosphoinositide 3-kinase inhibitors suitable for monitoring of intracellular distribution. Can you tell me how we can dissolve theophylline for...

26 January 2021 9,094 1 View

Can anybody suggest me a cheap material for surface modification of hydrophilic Titania nanoparticles?

I'm looking for a cheap material to modify Titania nanoparticles in order to use them in polymer and increase its contact angle.

13 December 2020 504 5 View

Importance of the tunnel effect on the solar cells performance?

Does the tunnel effect play a major role in the performance of solar cells? Especially when the device is heavily doped so the depletion layer can be thin enough for tunneling. Are there any...

10 December 2020 5,518 10 View

How can I find a questionnaire for Corporate identity?

My thesis is about the relation between corporate social responsibility and corporate identity. And I can not find any questionnaire about it. Can you help me?

24 July 2020 3,507 3 View

How to deal with a skewed Likert scale data with Ceiling/Flooring effects in a before-after design?

I have data of 30 subjects from a before-after design study. We used likert scale to investigate effects of changes in mood on some dependent variables. We hypothesized that the intervention would...

22 February 2020 6,496 5 View

What are the quantities per microliter of the different components needed for a reaction (1isolate of S. aureus ) to run a multiplex PCR ?

Dear colleagues, I need help. I want to run a multiplex PCR to look for enterotoxin-encoding genes in coagulase-positive StaphyloccIoccu . I have all the reagents needed to prepare the MIx PCR...

13 February 2020 7,036 2 View

Hello,I would like to know how to remove carotenoid from extracted solution containing chlorophyll?

I'm looking for a way to remove carotenoids from a solution containing chlorophylls and carotenoids, except chromatography method. thank you.

11 February 2020 1,043 2 View

Which international universities hold the Digital Transformation DBA course?

Hi dears, I want to learn more about Digital Transformation and its impact on Business model, strategy, marketing, agility and ... .I want to apply for online course at universities; is there any...

24 December 2019 3,817 11 View

I performed P-AKT western blot experiment. Even in 0 MOI, I got band. Is there any suggestion?

In any other phosphorylated proteins, in 0 MOI, I did not get band, but I got band in P-TAK.

22 July 2019 1,890 5 View

Removing a column which entirely has Zero value?

Hi! I have a very big excel sheet (6000 (row)*16000(column)), in which in some of them the entire columns have zero value. Does anybody knows how to remove those columns (just not manually)?

18 February 2019 8,960 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 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

How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

Is it possible to have two luminescence bands of the same peak position but with different intensities in single spectrum??

Hi! If it is possible to have two luminescence bands of the same peak position in a spectrum, what is the reason behind formation of two separate bands instead of one? This phenomenon is related...

26 February 2021 4,963 5 View

How can I find a Raman spectrum wavenumber corresponding to what compound?

I have several Raman spectra with very distinct peaks at certain wavenumbers, such as 277, 359, 466, 583, 623, 686, and 795cm-1. How can I identify them to what compound(s)? The RRUFF and others...

24 February 2021 363 3 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 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

How to find natural frequency of a bridge from vehicle induced vibrations?

i have frequencies of bridge that are effected by mass of vehicle. the problem is when any vehicle pass the bridge it would add the its mass to the bridge mass ultimately mass of the bridge will...

22 February 2021 10,004 3 View

What are difference between laser diodes, simple light emitting diodes and power light emitting diodes when operated in the visible spectrum ?

I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...

22 February 2021 4,240 4 View