What are the images of natural reasoning?

More Hazem Tarash's questions See All

How to prepared SEM samples of Polymeric Nanoparticles and lipid nanoparticles?

Imaging the nanoparticles after drying the samples shows the samples like a matrix I want to ask what is your prefered protocol to obtain a good image for your nanoparticles Many Thanks

07 December 2023 7,514 2 View

What is the meaning of this error and how to solve it? - mike 21 - Coupled Model FM?

What is the meaning of this error and how to solve it? - mike 21 - Coupled Model FM

03 November 2023 6,170 1 View

Mathematica: How to perform Partial Derivative Manipulation?

Good afternoon all. If someone would kindly answer the following questions, it would be greatly appreciated. Suppose I have a function f[x_,y_] := x2 + y2 + xy2...

02 October 2023 7,611 2 View

A specific question on MTT Assay for oil cytotoxicity?

I want to investigate the fish oil cytotoxicity using MTT Assay Should I extract the active ingredients from the fish oil first then apply the extraction on the cell OR I can add the fish oil...

23 September 2023 5,841 6 View

A specific question on MTT Assay for polymeric beads?

I have prepared thymoquinone alginate beads, and I want to investigate the cytotoxicity of my product against colon cancer cell. Is there a recommended way to do that: placing the beads in the 96...

23 September 2023 8,832 1 View

Where is the endothermic peak in this DSC curve?

I have a sample of liposome encapsulating a drug, this is the DSC data of my sample. I was wondering if I could consider the points nearly at 40 degrees Celsius as my endothermic peak...

20 May 2023 470 7 View

Do we need an ethical approval from each country in this case?

We are conducting a survey study among 22 countries and We are willing to collect responses only electronically, In this case should We obtain an ethical approval from each country of the 22 or...

13 March 2023 878 26 View

How to prepare n-methylimidazole in lab. and what are tools and chemical materials for this preparation?

I would like to prepare n-methylimidazole in the lab., I did find a clear protocol for that and I am happy if anybody can send me a protocol and video for teaching how.

19 February 2023 6,276 3 View

How can I recruit collaborators from low-populated countries such as Somalia, Djibouti, Mauritania, etc...?

I am conducting a medical survey study among the Arab population and I need collaborators from different Arab countries to help me spread the survey. However, it's difficult for me to reach many...

21 December 2022 6,570 1 View

Is there a website or application for Hb electrophoresis results interpretation?

Hello I think about tool can automatically interpretate my hemoglobin electrophoresis diagram Is this exist or applicable ?

09 November 2022 1,660 2 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

Are there any instruments for studying time similar to the way it is in space?

There are a huge number of methods for studying objects in space, according to the senses (and not only). Mechanical, thermal, optical, acoustic, electrical, magnetic, based on particle beams,...

06 August 2024 7,102 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

Does the delta function actually make sense to use on point particles?

The delta function seems produce logical contradictions when analyzed on a fundamental level. I would be curious if anyone else agrees.

31 July 2024 10,109 3 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