Anyone have a good protocol for extracting 4,4'-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile from Letrozole drug?

Can anyone give the detailed procedure for extraction.

30 December 2020 513 1 View

I am Looking For Spam Dataset ?

I am Looking For Spam Dataset? Can I find a comprehensive Dataset with.csv or .arff extensions which compatible with Weka?

03 December 2020 5,254 3 View

No title

08 November 2020 7,455 5 View

The second wave of the virus is Covid 20 !?

The second wave of the virus is Covid Does the virus develop and become more lethal and infect the lower part, i.e. the stomach and intestine, with severe diarrhea, intestinal bleeding and ulcers...

02 October 2020 4,767 1 View

How to discuss an insignificant p-value?

I have a small sample size (29 patients) and divided them into two groups each of which has a different sample size. I have an ordinal scale (dependant variable ) which is a scoring system to...

13 September 2020 7,298 31 View

What made English to become the language no. 1 in the world?

Why English in particular? Why not French, German, Arabic, Spanish, Chinese, or any other language?

27 July 2020 7,754 90 View

What is the most reliable method for performing ELISA test on mouse brain?

Dear fellow researchers, may I ask you for your advice regarding performing ELISA test on mouse brain? which method gives a better yield snap freezing the tissue in liquid nitrogen, storing it...

26 July 2020 1,376 3 View

How to calculate Stress intensity factor in ABAQUS XFEM with allowing for crack growth?

Dear All, I want to model crack growth in a plate using ABAQUS XFEM method. Here is my question about it: How to calculate Stress intensity factor in XFEM when crack growth in ON? At this time,...

17 July 2020 1,341 1 View

Scientific relationship between stress intensity factor (SIF) and crack tip opening displacement (CTOD)?

Dear connections , What is the scientific relationship between stress intensity factor (SIF) and crack tip opening displacement (CTOD) with specimen double edge cracked. So really I need your...

13 June 2020 9,426 1 View

How to keep in memory the global ecological pause during the COVID-19?

Dear Researchers, I would like to raise a debate with you, regarding the impact of COVID-19 in the environment and climate change. We are a group of researchers that have launched a map, which...

08 June 2020 9,286 3 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Why Austenite grains in steel show much more twinning than ferrite grains?

It is oftentimes said to be a distinctive metallographic trait that differentiates a fully austenitic and a fully felly ferritic steel without etching that might distinguish between two. Why...

02 March 2021 728 2 View

What are anisotropic electrical and optical properties of a semiconductor due to?

In some materials, properties such as band gap, thermal conductivity differ along different crystallographic axes. What are the basics?

01 March 2021 1,923 3 View

How to simultaneously perform multiple biochemical assays?

I am a research scholar working on heavy metal stress on plants. I will be doing biochemical characterisation( protein, carbohydrate, proline, antioxidant enzymes and many more assays) at interval...

01 March 2021 6,999 3 View

1 nm thick MgO thin-film to be deposited on Si wafer using thermal evaporation. What will be the optimum deposition conditions?

Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.

28 February 2021 3,640 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Can thermal cycler machines be problematic during PCR?

Hi, my question is about the heating of thermal cycler machines and I hope some of you had experienced a similar thing previously. There are two thermal cycler machines in the lab(BioRad) and for...

26 February 2021 4,777 4 View

How to increase solubility of Poly acrylic acid in Dioxane solvent?

I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...

25 February 2021 2,225 5 View