Any gel-type materials can be used for impedance matching?

Hi. I am recently designing biomedical antennas. The problem is the permittivity difference between the skin and the air is too big, so I am having difficulties in delivering RF power to the...

22 October 2020 6,833 5 View

Stephen Crothers Refutation of the Existence of Black Hole?

Why is nobody talking about Stephen Crothers mathematical refutation of the existence of Black Hole from his study of general relativity? He has been very vocal giving presentation at a conference.

11 October 2020 5,260 8 View

Symmetrical form of Maxwell's equation explains Light propagation in empty space and Quantum Mechanical uncertainty at the same time?

In physics, normally a critical information solves many seemingly unrelated problems at the same time. I think this is the case with the information that neutrinos are magnetic monopoles of...

11 September 2020 7,840 22 View

How can you remove reduced graphene oxide?

I am using a SiO2 wafer with gold electrode on top of it, and I'm looking for a way to "re-use" the gold electrode if possible. Is there a way to not hurt the gold electrode (that is very thin)...

15 June 2020 8,300 4 View

What is wrong with my ligation and transformation of plasmid DNA?

Hi I am just an ordinary university student that is currently studying in a lab to graduate. I have not been long since I have been studying in the lab. Now I am learning how to make a vector and...

11 March 2020 2,277 3 View

Using GAN-generated faces to train face recognition?

As an undergraduate research project, I am thinking about training face recognition system using GAN-generated face data, instead of data generated by humans. I want to find out whether...

01 March 2020 7,062 3 View

Why potential window becomes shorter in Galvanostatic Charge Discharge (GCD) compared to Cycling Voltammetry (CV)?

I use iviumsoft for CV and GCD in order to measure electrochemical properties of supercapacitor electrode material. Let's say that CV curves make pretty large shape in potential window of 0 to...

05 April 2019 4,520 6 View

How do I minimize exposure to room air just after exposure to hypoxia?

I am planning an lab study on effect of hypoxia on glucose metabolism of cancer cell. For hypoxia exposure, I am considering anaerobic chamber system. My concern is that if I use this chamber,...

14 March 2019 7,641 8 View

In supercapacitor, how can certain materials are used for certain electrode material?

transition metal such as Mn, Ni, Co, Cu etc are more likely used as positive electrode whereas some others such as Bi, Fe, Mo, Carbon etc are more likely used as negative electrode materials....

28 February 2019 2,886 2 View

Why are side chain lengths different by 4 like hexyldecyl(HD), octyldodecyl(OD). Why don't we use symmetric side chain?

why are all side chain lengths different by 4 like hexyldecyl(HD), octyldodecyl(OD), decyltetradecyl(DT). Why don't we use symmetric side chain? I appreciate any references that show the different...

27 February 2019 4,078 1 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to choose ANN number of hidden layers and nodes?

Hello, Could you please share any interesting research explaining how to choose the number of hidden layers and nodes per layer in case of regression problems using ANN? Thank you, any help would...

01 March 2021 6,200 3 View

PUC19 as a transfer plasmid for lentiviral delivery?

Hello, Is it possible to use pUC19 as a transfer vector to be packed in using the second generation viral particles packaging system( pMD2.G; psPAX2 plasmids)? As far as I understand it there is...

28 February 2021 4,868 2 View

How could I take into consideration the weights of observation in a system of seemingly unrelated regressions (SUR) in rstudio?

I build a model of 4 regression equations (probit and OLS) in R studio. I need to take the weights of observations into consideration. While it is simple to do so for every regression equation,...

27 February 2021 1,233 1 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View

Hello house, is it necessary to compute Content Validity Ratio (CVR) for an adapted questionnaire pls?

What should one do if he obtains conflicting results between Content Validity Index (CVI) and CVR for items in a quetionnare. For example based on the CVI obtained the items are acceptable but the...

25 February 2021 7,325 2 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

How to run raise regression in R?

if anybody know how to run raise regression in r, and raise parameter selection, please help me

24 February 2021 8,199 1 View