13 February 2014 1 7K Report

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More Imen Gherboudj's questions See All
How estimate the standard deviation or the geometric standard deviation from this database.. i have only the geometric mean.?

I need help

11 June 2024 1,279 0 View

Why I see this massive band in my CO-IP?

I am new to CO-IP. I am following this protocol for CO-IP Lysis buffer 1 0,25ml 1M Tris-Cl 0,15ml 5M NaCl 0,5ml 10% NP40 0,25ml 10% Nadeoxycholate MQ 3,85ml 1/2 pill EDTA free Lysis buffer 2...

05 March 2024 6,785 5 View

Compare two pooled prevalence?

When I have two pooled prevalence from different studies. For example, one of the event 1 in x disease, and the second of the same event in the control group, but the study of the prevalence of x...

05 January 2024 4,934 2 View

What 's the VBA function used to change the number of transporters ""number of units" in an ARENA model ?

Hello! I developed a simulation model in ARENA with many forklifts. I would like to change the number of transporters each time without accessing the "transporter" module. For that, I need to add...

25 February 2023 7,755 2 View

Using Arena simulation software, how can I Request a forklift in advance?

Hello, I want to call a forklift before the batch will be fully manufactured, which module should I use?

28 March 2022 4,257 4 View

What are the applications of bowtie antenna ?

Hello everyone , I want to know what are the applications of bowtie antenna ? Do you have an example of Bowtie antenna application at 28 GHZ. ? Thank you

21 October 2021 947 8 View

What alternative for ANOVA test when levene test shows a violation of the homogeneity assumption?

I am running some statistical analysis for a small size group (4 treatments with 3 replicas for each treatment ). This means that I have 3 independent observations per group, so 12 independent...

10 October 2021 313 18 View

Why from 50 uM of ascorbic acid the percentage of inhibition decreases?

Hello friends I evaluated the anti-free radical activity DPPH of ascorbic acid I repeated it several times I obtained the same results I did not understand why from 50 uM the obtained density...

04 September 2021 8,153 4 View

Microncapsulation of polyphenols in yeast cells?

How is yeast being used in encapsulation of polyphenols? Plasmolysed or intact cells?

22 July 2021 5,390 4 View

How can i calculate the mass in grams for each pure compound?

Hello I would like to measure the antioxidant activity of two pure compounds A and B (of plant origin), then I will make a comparison between the two the formula I used to calculate the mass in...

04 July 2021 9,342 2 View

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07 August 2024 6,034 3 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

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How can we use mobile apps for improving students' academic performance?

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Does long-term culture of murine Monocytes result in macrophage differentiation?

Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...

04 August 2024 7,282 2 View

Why is the molecule's orientation with an electric field affect polarizability?

Why is the molecule's orientation with an electric field affect polarizability? Electrons are diffuse enough to be independent with respect to orientation and effect of electric field on...

03 August 2024 7,843 1 View

Why do paired electrons atoms produce no magnetic field lines?

If you think of electrons with spin as bar magnets, you know bar magnets of opposite polarity as long as they're not occupying the same spatial location don't cancel out each other's magnetic...

03 August 2024 3,927 2 View

I need to dissolve stigmasterol for an animal experiment, it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent?

Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?

01 August 2024 7,504 2 View

How to choose the journal?

Hello I want a suitable journal in the field of remote sensing and machine learning to be judged quickly. Thank you for your guidance Thanks

01 August 2024 1,799 4 View

With attention to past my experiences on field geology I think any mineral ores can be in any geology area. Are you agree with me?

I want to know more about ore deposits in world.

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Does it exist some special technique for cutting ceramic membranes for Cross-sectional FESEM images?

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