07 March 2020 1 10K Report

If stars rotate, the intensity of gravity might vary at their rotation frequency.

More Louis Rancourt's questions See All
Can lysozyme also interact with dextran and agarose?

Hi everyone, I'm a researcher working with proteins and I have a question about performing GPC (size exclusion chromatography). Lysozyme is known to hydrolyze peptidoglycan, which is a component...

25 May 2024 5,979 3 View

Is there anyone that can assist be with removing excess 1-Iodo-Octane from from my product. Beside high vacuum distillation and kugelrohr what else?

I perform al alkylation reaction on an imdazole compound where the alkyl reagent (1-Iodo-Octane) was in excess. After the reaction was completed, I then performed an extraction, followed by...

24 May 2024 8,042 2 View

What is the best approach to compare modularity or clustering coefficient of a graph in a weighted and unweighted context ?

Hello, I'm exploring whether incorporating edge weights in a network affects the extent to which the network is partitioned into clusters of closely connected nodes. Specifically, I'm...

13 May 2024 5,078 0 View

What is the reason for quickly removing imidazole after purifying a protein?

I was told by a lab colleague that 'after purifying a protein with a his-tag using imidazole, it is crucial to quickly remove the imidazole. Keeping the protein in more than 200mM of imidazole is...

04 March 2024 4,893 1 View

DO calibtration while production is ongoing?

Hi all, Do you do DO calibration while the production is ongoing? Typically I don't do it. However, my recent data showed that offline pO2 is extremely high (approximately 300mmHg) but the...

22 December 2023 3,270 0 View

Is someone here with knowledge in TRNSYS software ?

I want help on design the draw profile daily on domestic water (throughout the day) using TRNSYS. Please your help !!!

29 November 2023 1,165 0 View

What is role of the magnesium acetate in cell lysate?

I'm working on preparation of protein lysates from E.coli I read in a few paper that magnesium acetate should be added before sonication what is role of the Mg ace in cell lysis?

03 November 2023 4,891 2 View

His tag aggregates?

I'm working on isolating recombinant protein in E.coli (Ni-NTA) I'am trying to purify recombinant protein that I overexpressed E.coli BL21(DE3)pLysS using the pCold1 vector. The proteins have...

03 November 2023 3,066 3 View

Why would ocean levels rise when Antarctica melts?

I do not doubt climate change and the disasters that come and will come from it (Some thoughts on climate change, resource constraints, and adaptation ). However, one thing puzzles me: why would...

28 October 2023 4,607 8 View

Which statistical test should i use for an experiment with 72 combinations of scenarios?

I am making an experiment about privacy and view-out in Virtual Reality (VR). The experiment has a lot of combinations of scenarios. I have 2 seasons, 4 locations, 3 positions and 3 window-sizes...

15 September 2023 7,046 3 View

Similar questions and discussions
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

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

Why only alpha wave of brain are found in some patients?

I have found an EEG where only alpha waves are present. Beta waves are not found in active patients. What interpretations ?

26 July 2024 4,741 1 View

What is the physical meaning of the magnetic scalar potential?

In cases where the rotational of the magnetic field H is zero, we can define this field as the gradient of a scalar function defined as the magnetic scalar potential (similar to the electric...

21 July 2024 9,633 4 View

Did Einstein misunderstand the photo-electric effect?

Photo-electric effect A light particle moving towards a surface cannot (by collision) force an electron particle to move away from that surface. A light wave can instead make interference with a...

19 July 2024 8,389 9 View

Every star like the sun is at a stationary position. Am I right?

The earth has a orbit, but not for the sun. Similarly, all planets have orbits, but not for stars like the sun.

18 July 2024 1,768 4 View

What is the angular difference between two sets of Euler Angles?

Let's say I rotate a hexagonal crystal using Euler angles (φ1, φ2, φ3); and rotate another similar crystal using Euler angles (ψ1, ψ2, ψ3). What would be the angular difference between the final...

17 July 2024 5,582 1 View

What is wrong about this model of Universe?

A universe model compatible with VSLT The research of Halton Arp and Eric Lerner supports a stationary universe, and the intrinsic nature of redshift, i.e. not linked to its presumed expansion...

14 July 2024 4,092 5 View

How to find peak period and significant wave height for a particular location in ocean?

I want to develop the figure like attached figure. How can I get, peak period and significant wave height at any given location.

13 July 2024 886 2 View

Possible reasons for not getting wake effects in free surface?

Hi, I am trying to simulate a ship in a canal. The top width of the canal is 20m, bottom width is 6m, depth is less than 5m. Ship has a length of 11.7m breadth of 4m, draft is 0.62m. The velocity...

10 July 2024 1,732 4 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close