Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Why can`t I isolate RNA from Extracellular vesicles?

Hello, I have been trying to isolate RNA from EVs (from MSCs) for a while. I isolate the EVs using SEC. Then I use the "Total Exosome RNA and Protein Isolation Kit" from Invitrogen. When I...

21 October 2020 8,559 4 View

How to directly use a directory of .h5 files as the training set in Python without appending them to a list?

I am trying to append .h5 files saved in a directory for my training set using Python, but I face memory error as the Data set is very large. The following code is what I used for...

23 April 2020 9,649 2 View

To record trajectory tracking performance of a controller, is it resonable to calculate the mean_square_error or the normalized-measn-square-error?

I some papers, the mean square error is considered. In some other, the mse is normalized by dividing the error by the (total sampling instants x the total length of the reference...

25 February 2020 784 4 View

What is the most reliable guide for identification of alternaria species based on morphological and cultural criteria?

what is the most reliable guide for identification of alternaria species based on morphological and cultural criteria?

02 December 2019 174 1 View

How the nonholonomy of mobile robots allow control of the system with less control inputs?

In "Simultaneous Stabilization and Tracking of Nonholonomic Mobile Robots: A Lyapunov-Based Approach", the authors stated that the nonholonomy of mobile robots allows control of the system with...

27 May 2019 7,721 4 View

How to interpret DMA?

18 May 2019 631 6 View

What are the most reliable tools or softwares for designing of the CRISPR gRNAs?

Dear all, Which tool is more reliable? CHOP CHOP or CRISPRdirect? I need some information about other tools and softwares. Thanks a lot

08 May 2019 10,004 2 View

If you could recommend one significant change to make Higher education more affordable without compromising its worth, what would it be?

Higher Education cost is increasing and students encounter some challenges to afford it.

21 March 2019 7,173 6 View

How to match reflection in both visible and infrared?

I have a thin film of a fluorescent material and want to make a reference sample with similar reflection in both visible and infrared to do the comparison. How can I make the reference sample?

26 February 2019 6,857 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

Does the circuit modeling for planar monopole antennas using Foster canonical forms give good approximation?

Hi researchers, I am searching for some accurate way to do the circuit modeling of planar CPW-fed monopole antennas. I have gone through the literature where mostly circuit modeling is done using...

28 February 2021 7,016 1 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Has anyone experienced changes in growth for cell culture when purchasing media from different companies?

I recently switched the company where we buy our DMEM/F12 and i have noticed a signficant change in growth for my human olfactory neurosphere cell lines

24 February 2021 2,268 3 View

Why am I getting 'Infinity' and 'NaN' in my mixed-mode energy release values?

Hi everyone, I am currently running a mixed-mode simulation of a DCB using a user-defined cohesive zone model (UEL), however, the results I am getting don't make sense. I used the same UEL for...

24 February 2021 4,157 1 View

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View