Vertical hydrogen bonds in DNA?

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Is the sample size sufficient for using a fixed effects model?

For my research, I will retrieve data for each firm (100 firms) over 5 years, leading to 500 data points. Should this dataset size be sufficient for using a fixed effects model?

13 April 2024 6,669 2 View

Can freeze-drying remove 12-24% ethanol concentration from sample?

Hi, I have two samples containing 12-24% Ethanol (diluted by distilled water). I am wondering if these samples are frozen and then freeze dried, would that either decrease or get rid of the...

28 March 2024 5,961 1 View

I am looking for someone that can validate our Research Questionnaire about "Exploring Single-Use Plastics Towards The Environment In The Selected"?

I am currently in my senior year of high school and for our research, we have to find at least 1 expert around our topic to validate our questions. ps. title was cut off- "Exploring Single-Use...

26 March 2024 2,375 3 View

Separate IPA-water mixture?

Hi everyone, I am conducting an experiment which I am extracting substances into a IPA-water mixture. Since I am going to analyse the substances using GCMS, I need to somehow remove the water...

09 January 2024 4,060 3 View

What do the scientist do to avoid the application of the neutrino bomb?

Neutrinos are the freeest partikels in the universe. One can barely say, where they come from and where the go to. But impinging on matter without remarkable absorption they take with them...

22 December 2023 6,490 0 View

PH of the rectum of cattle?

Hi all. I was wondering if anyone knew what the pH or pH range of specifically the rectum area in cattle? I've been looking for information on the subject but couldn't find any. Thanks!

19 November 2023 336 0 View

How do you curve fit an experimental S-N curve with the BS 7608 standard?

Hi, I have set of experimental data that I have collected from fatigue tests and I would like to ask how do I curve fit the data with the BS 7608 standard equation on excel? I have tried various...

05 November 2023 477 1 View

Where to find JavaScript version of Probabilistic Reversal Learning Task (reward learning)?

Does anybody know where I could find a freely available JavaScript version of the probabilistic reversal learning task (2 armed bandit; participants pick between 2 abstract stimuli w/different...

20 September 2023 8,842 0 View

How do you determine the Yield Strength Ratio to conduct a fatigue test?

Let's say I have the values of my material properties (e.g. UTS, Yield Strength, Young's modulus) after conducting a tensile test, and then I would proceed to conduct a fatigue test to investigate...

21 August 2023 608 2 View

Anion-exchange membrane?

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14 August 2023 9,706 1 View

Weak DAPI staining after immunohistochemistry - how to improve?

After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...

05 August 2024 9,637 2 View

Why results of ROS flurescence are negative as there was no bacteria within?

Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...

04 August 2024 5,974 3 View

Dirty and clean?

Hi everyone I need a file with a dirty and clean potato image

04 August 2024 7,199 4 View

How to Transform my handy-wavy explanation of why group I/II metals oxides in aqueous solution are basic into a rigorous argument?

I heard an explanation about something being a better proton acceptor or lone pair donor but that doesn't make sense. I couldn't explain in in terms of acid-base theory. The hand-waving way I saw...

03 August 2024 9,918 0 View

Hello, regarding Mxene 2D titanium carbide?

I fabricated Ti3C2Tx using concentrated HF 40%, I plot an XRD as attached image below.. please let to know if I obtained it or not.

02 August 2024 6,789 4 View

What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...

01 August 2024 2,614 1 View

How to make the concentration measurements for the hydrogen absorption/desorption in the metal hydride?

Hello Everyone! I am trying to create a metal hydride system where I am trying to create a temperature control with the emphasis on measuring the concentration of the hydrogen with the hydrogen...

29 July 2024 7,577 2 View

IHC profiler in image j software. has anyone used it to quantify nuclear DAB positivity?

Dear researchers. I tried using the IHC PROFILER in image j to quantify nuclear DAB staining. I followed the instructions in the original article by "Varghese F, Bukhari AB, Malhotra R, De A...

29 July 2024 2,229 0 View

While using the IHC PROFILER plugin in image j software, to quantify the epithelial cytoplasmic DAB staining do you crop remove the stromal tissue?

My question pertaining to the DAB staining in cytoplasm of human oral squamous cell carcinoma tissue. When quantifying the epithelial cancer cells do we have to crop remove the stromal tissue?...

29 July 2024 2,682 6 View

What change would occur in physics if the three different sizes of the proton and the two sizes of the deuteron accepted as new physical constants?

For people today, the enigma of the size of the proton still remains enigmatic. However, being myself a researcher in new physical theory which makes it possible to extend the different standard...

28 July 2024 7,823 1 View