If geometry is the foundation of knowledge, what is the keystone of knowledge?

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I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future ?

I have a time series data of some biochemical studies ( DNA and Chromosomal damage) which I intend to use to further predict into future without necessarily conducting the assay for an extended...

23 February 2021 7,842 1 View

No mRNA increase in PCR after successful transfection in ARPE-19 cells ?

Hello, i am a bit curious about my results. I transfected the human cell Line ARPE-19 with a Plasmid containing a GFP tagged p53 (p53-GFP, Plasmid #11770). After 24h i checked under the...

18 February 2021 3,811 7 View

Do there exist stand-alone permanently in-ground soil-moisture sensors with an installed GSM module, for outdoor use?

Am searching for a stand-alone permanently in-ground soil-moisture sensor with an installed GSM module, for outdoor use. The idea is for the sensor to send a moisture reading via a cellphone text...

04 February 2021 2,047 4 View

What is the easiest way to remove the water from organic solvents?

Hello everyone! I have one question. I have couple of solvents and all of them were pure when they were bought but after some months or years of storage after opening I am not 100% sure about...

03 February 2021 2,154 8 View

Virus neutralization assay in BSL2 lab?

Hi I want to set up a virus neutralisation assay such as PRNT or FRNT at my lab (BSL2), but im uncertain of the bio safety requirements that has to be fulfilled in order to work with...

01 February 2021 5,626 3 View

Using LINK11 to Apply force in ANSYS APDL?

I'm trying to use LINK11 to apply a force as if it was a cable pulling a structure twowards a point in ANSYS APDL. When I solve the model, the deformation of the overall structure is far too...

30 January 2021 7,919 1 View

Cytoflex Flowcytometer, clotting issues and cleaning procedures?

We have been having clotting issues with our Cytoflex S from Beckman Coulter. Back in December 2020, we had to have the tubing system and sample needles replaced, but we are beginning to observe...

28 January 2021 6,897 2 View

Difficulties purifying Outer Membrane Vesicles using a Sucrose Density Gradient: Unable to detect any protein after this process?

I'm currently trying to purify Outer Membrane Vesicles (OMVs) following their extraction from the bacteria I'm working with. After the initial extraction the concentration of protein seems good...

27 January 2021 6,852 3 View

What excamples do you know wasting unused contents of "empty" packaged products?

Most of us use tooth paste more times a day. The empty tube we throw away. I wondered how empty the tube really is. This does not sound being Research? I began to collect empty tubes...

19 January 2021 808 3 View

What is the largest disadvantage in using of face masks at present? What would you like to be improved?

We all use face masks many hours a day. I wonder what are your items you like to be improved. We have the opportunity to write an application for support to a sponsor. Your answers will help us a...

18 January 2021 1,311 4 View

How to combine two geometries in LAMMPS ?

I am trying to simulate contact angle of water on a quartz slab using LAMMPS. I have created and equilibriated the quartz slab and the water cluster separately. Now I want to create a composite...

17 February 2021 5,884 2 View

How to classify and recognize unseen image class in document sorting?

To sort the scanned document image I have to determine the class of document. But no of classes of image will keep on adding even after training. So at time of inference first I will detect unseen...

16 February 2021 4,501 3 View

Is CXCR5 on T cells affected after a cell sorting?

I have tried to sort CD8+ CXCR5+ in the ARIA but the purity of my sample is about 50%. After sorting, I stain my samples to verify purity but it is low. So, I thought about "downregulation" or...

15 February 2021 8,034 7 View

How to mesh complex geometry?

I have been trying to mesh some complex geometry and have been having issues. I have attached images of the geometry in question. This structure is very large in size but has some comparatively...

05 February 2021 6,379 5 View

Which database could provide the signal sequence for targeting various cellular regions? ?

I am searching for thee database which could provide me signal sequence specific to the various cell organelle. such as signal sequence for mitochondria, signal sequence for endoplasmic...

04 February 2021 6,650 2 View

Please recommend me the proper steps (blocking method) to generate Hexahedral mesh of the following geometry inside ICEM-CFD?

I am facing an issue while blocking for the geometry mentioned in the image. After blocking it ends with a triangular block due to its shape. How to create a hexahedral mesh for this geometry in...

02 February 2021 888 1 View

Are there well-established collaborative sorting tasks/datasets?

Hi, I am currently working on research on communication behavior in Mixed Reality. I am planning a study, where dyads perform a task, in which they have to collaboratively cluster or sort cards...

31 January 2021 4,979 3 View

How to find nature of extremum of a functional? what are the mathematical prerequisites to understand it?

For a function, usually sign of second derivative (and if it is zero, even/odd index of higher order derivative whose numerical value is zero) is enough to detect whether the extreme point is...

25 January 2021 7,703 3 View

Frequency calculation with TDDFT???

Hi, I have been trying to calculate the frequency vibrations of the excited state S1 of an organic molecule (24 atoms). The geometry optimisation of the excited state converged smoothly howerver...

22 January 2021 1,463 3 View

Is there a technique to store fixed cells after flow for later RNA analysis?

I am separating neuron populations from mouse brains using FACS. I am trying to find a fixation technique for intracellular antigen staining and FACS that will allow long term storage afterwards...

21 January 2021 9,722 3 View