Mixture neutralization after Boc deprotection ?

I am performing a Boc-deprotection with HCl in organic solvent (dioxane or Ethylacetate) but would like to isolate the free amine. Several problems: - Neutralizing with inorganic base as NEt3...

18 February 2021 3,366 3 View

How to remove unedited version of the manuscripts from research gate?

Our manuscript was published ahead of print. The edited and revised version is now available. How do I remove the old version of the manuscript from the research gate?

01 February 2021 5,965 1 View

How to prevent false negative FISH results?

I am analyzing data from a FISH experiment and notice that there are false negatives. What is the best option to change in the experimental set up to avoid this from happening?

04 October 2020 5,777 1 View

Clarification on Shapiro-wilk sig. , skewness and kurtosis?

Hello, Maybe is a bit silly question but, I have a variable (N=78) and on shapiro-wilk test the sig. is .008 which is just over (greater) than 0.05 meaning that is just about normally...

29 August 2020 1,384 4 View

How do you analyze a data set with nominal and continuous variables?

I have a couple of datasets that I scraped myself with Python. One is a list of countries with a few figures on how easy they are to work with from a business stand point (days items are in...

28 January 2020 9,278 3 View

How do you average log CFU/ml?

Do you first calculate the average of all the CFU and then sub it into the equation ? OR Do you calculate each individual log CFU/ml and then average that?

19 March 2019 7,956 6 View

What is the general upper detection limit CFU/ml for Enterococcus faecium?

How do you determine the upper detection limit for E. faecium? If there are too many to count on the plate, can I suggest that there are >25,000 CFU/ml for example? - or would that be too much

02 March 2019 1,261 1 View

How do you perform a Mann-Whitney U test when trying to calculate the average CFU/ml?

I have a treated and a control condition of agar plates. I counted the number of colonies and wanted to carry out a mann whitney test. Do I carry out the mann whitney test using the counted...

02 March 2019 4,830 1 View

How do you average log CFU/ml?

Do you first calculate the average of all the CFU and then sub it into the equation ? OR Do you calculate each individual log CFU/ml and then average that?

02 March 2019 1,412 7 View

Do different alcohols disinfectants act on the same mechanisms to kill bacteria?

For example, do isopropanol/1-propanol/ethanol alcohol based hand rubs all use the same mechanisms to kill bacteria? Do they all just disorganize lipid membranes, denature proteins, and...

02 March 2019 8,814 3 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

The procedure compute?

02 March 2021 5,204 3 View

Is there a powerful system for the security of the systems distributed on IoT systems?

Is there a powerful system for the security of the systems distributed on IoT systems?

02 March 2021 3,858 10 View

Which is suitable for use with Python? MySQL or SQL Server?

Which is suitable for use with Python? MySQL or SQL Server? What is your suggestion?

01 March 2021 3,422 3 View

If you haven't computer? how you show the photons to pupils?

Educational Process

01 March 2021 1,827 1 View

Please can i get topic and materials that will relate computer with telecommunication companies?

I am a master student and i am working on my research, so I am a bit confuse don't really know how to match computer with telecommunication as a topic

28 February 2021 7,039 6 View