18 April 2015 1 3K Report

I try many times to do it

More Murtada Alsiddig's questions See All
Solubility of magnesium oleate?

Does anyone know of an appropriate solvent to dissolve magnesium oleate? I have tried searching the literature and I am seeing that the salt is insoluble in many solvents. I have tried water,...

14 October 2022 2,884 1 View

Who is your legendary soccer player ever?

Soccer is a game played by two teams of eleven players with a round ball that may not be touched with the hands or arms during play except by the goalkeepers. The object of the game is to score...

02 January 2021 2,890 90 View

What is the one thing that you have learned, mostly, the most in your entire life?

If they are more than one thing you may mention them, please. That could help others to learn from your experience. Let us learn from each other.

29 December 2020 1,012 93 View

Which style is more popular; MLA, Chicago, or APA Style in writing an excellent paper? Why?

Writing a good paper or article considered to be a great effort in order to reach incredible results. Hence, which style do you think is more popular and better to be used? Is it MLA Style,...

26 December 2020 339 20 View

What are the main and most important steps on writing a book review?

Academic writing should be well designed. How can we be professional? What are the main tips though?

26 December 2020 1,162 7 View

How to remove sodium cyanoborohydride from a solution involving a conjugate that has a TEMPO moiety?

I am working on a reductive amination conjugation reaction between a tag I've synthesized and a glycan (I am using lactose to test out the protocol). Total molecular weight of the conjugate is 689...

17 December 2020 8,430 3 View

How to remove sodium cyanoborohydride from a solution involving a conjugate that has a TEMPO moiety?

I am working on a reductive amination conjugation reaction between a tag I've synthesized and a glycan (I am using lactose to test out the protocol). Total molecular weight of the conjugate is 689...

16 December 2020 4,409 0 View

How can I remove sodium cyanoborohydride from glycan solution?

I have coupled a reagent to lactose, followed by a reductive amination reaction with sodium cyanoborohydride in a ~100 uL solution. I want to remove the NaBH3CN from solution. What is (are) the...

01 June 2020 3,859 6 View

How can the continuous fermented of gas production can be determined?

To evaluate the quality of feed

24 November 2014 8,095 6 View

Forming an Ellipsis; HOW?

Ellipses:- What is an ellipsis? An ellipsis is a series of three consecutive periods known as ellipsis points ( . . . ) used to indicate where words have been omitted from quoted text, or...

01 January 1970 5,822 9 View

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Why after performing site directed mutagenesis ,I don't see any colony after transformation?

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Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

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Does anyone have issues using Prepman Ultra reagent for MicroSeq ID bacterial, fungal and yeast sample preparation?

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I'm optimizing a tetra-ARMS PCR protocol with amplicon sizes: 165bp, 123bp and 93bp. Why, in the gel, only 165bp is visible while I'm expecting all 3?

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PCR showing no bands - Master mix and primers didn't mix?

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