Iraqi universities outside the classification of institutions of higher education in the worldوwhat are the reasons? What are the solutions?

More Taiba Falih Al-mayyahi's questions See All

Hi, as researcher, how to identify some types of plants in the simplest way, we shared your opinion in order to benefit everyone. thank you.?

For example do you distinguish them if they are Monocotyledons or Diocotyledons. What about plants families

08 September 2019 2,835 3 View

Would methanol be used instead of ethanol to get a better extract and why?

I know that the methanol boiling point is lower than ethanol and the degree of volatilization as well. Are there any other reasons for this if you want to use GC-MS analysis greetings to you all

10 November 2017 6,822 5 View

What do you know about an insect syrphid flies?

Do you have information about their spread, breeding habitat and plant type? Especially in Iraq. Greetings to you all

10 November 2017 9,358 4 View

Are there any negative effects if you dry the plant parts under direct sunlight?

Hello Are there any negative effects if you dry the plant parts under direct sunlight?Especially if you want to get active substances.Greetings to all

09 October 2017 572 2 View

Is there an effect of the type of plant extract on the types of compounds shown in GC-MS analysis?

Such as methanolic extractHexane ExtractWater abstraction Is there a relationship between it and the column used in GC-MS? And what is the relationship؟

07 August 2017 2,798 7 View

What is the reason for current dropping in OER , LSV curve?

I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...

10 August 2024 3,629 1 View

What may be the reasons for failures of Tube toi Tube Sheet Joints in Boiler Drum ?

We have observed that tube to tube sheet joint leaked in our boiler and needs to overcome same by knowing the root cause.

08 August 2024 3,161 0 View

What is the problem with these tissue culture plants?

All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.

01 August 2024 589 4 View

Reason for discontinuities in my Band structure?

Hey All! I am wondering what might be wrong with my band structure. I did the calculations using VASP and plotted the results using Origin. Although I have tried changing various input...

25 July 2024 2,920 11 View

Is it fare for editors of reputed Journals to put on hold manuscripts more than six months without review updates, Are they harassing researchers?

It is being seen that Editors of some reputed Journals are putting on hold the manuscripts and not updating review states even passing more than six months from submission. Researchers are...

24 July 2024 8,596 2 View

Has anyone tried freeze flow samples in -80C freezer or liquid nitrogen before processing?

Our lab has some radioactive cell samples that need to be kept frozen for at least 30 days before flow analysis. For some reason, the samples stored in liquid nitrogen did not perform as well as...

15 July 2024 9,975 1 View

My Cyclic voltammetry curve doesn't show cathodic peak of Cu2+ to Cu+. how to solve this problem?

I performed CV of Cu-MOF in a buffer solution of pH 8, and we did not find any peak corresponding to Cu2+ to Cu+. What is the reason behind this? Please give your valuable suggestions.

08 July 2024 2,388 4 View

Hello, I’m growing three species of microalgae under heterotrophic and mixotrophic conditions. Both the two turned yellow?

What could be the reason for mixotrophs to be yellow too instead of green? Thank you

08 July 2024 594 2 View

What are possible reasons for having the repeated wavy patter in Raman spectrum?

I'm currently analyzing the Raman spectra of coloured plastic samples and have encountered a wavy, oscillating pattern in the spectra of some coloured samples. I was wondering what the possible...

04 July 2024 1,949 4 View

Which river basin has lowest total replenishable groundwater resources &utilization of irrigation potential created lags behind potential created why?

Which river basin has the lowest total replenishable groundwater resources and utilization of irrigation potential created lags behind the potential created what are the reasons?

03 July 2024 9,638 0 View