Do you know any research on the evolution of educational programming languages?

Hi, as part of my bachelor thesis on the design of programming languages for teaching mathematics in the 21st century, I have planned to discuss the evolution of (the) major programing languages...

02 August 2020 7,922 6 View

How to control the optimization step size in Gaussian?

I would like to perform a geometry optimization for a weakly bound methane dimer structure with Gaussian 16. During this process, the Newton-Raphson step size should be controlled such that its...

09 July 2020 1,956 2 View

Do you know of any true, simulated, or synthesized hexagonal lattice format based [image] data sets?

- E.g., Cherenkov Telescope Array (CTA) images.

24 March 2020 5,221 4 View

How do you identify the complete added mass matrix of a ship using experimental data?

I am looking for a purely experimental method to determine the mass matrix of a ship in three degrees of freedom using manoeuvres in open water. I just found: Skjetne, Smogeli, Fossen: The...

23 March 2020 814 1 View

Statistical test to find out the influence of environmental factors on fish migration numbers?

Hello, I have collected the numbers of migrating fish (round 25 species) for the last 3,5 years every day. I have also collected environmental data like water temperature, water flow, moon phase...

02 January 2020 7,774 4 View

How to deal with non-detects in CT data when performing Delta Delta CT Method?

Input: - RT QPCR dataset row CT values interpolate corrected - 50 target genes - 10 reference genes - 3 different treatments with 3 replicates each - 1 control with 3 replicates Objective: -...

19 August 2019 1,528 3 View

DSC using total enthalpy method - enthalpy of 100% crystalline sample?

Hello, to get an exact result for crystallinity of polymers I want to use the total enthalpy method suggested by Kong and Hay. For doing so one has to calculate the enthalpy of fusion of the 100%...

08 August 2019 9,532 6 View

In time series data, is it sensible to compare the AUC of the extrapolated baseline and observed post-intervention outcomes?

I am (prospectively) evaluating a NHS health board wide quality improvement initiative aiming to reduce exposure to high-risk prescribing. I am expecting a time lag in the intervention effect, but...

26 February 2019 8,944 2 View

Is there a recommendable article dealing with winsorizing outliers in SPSS?

I would like to winsorize outliers SPSS instead of trimming them. Therefore I am looking for an article that introduces to the method of winsorizing. Thank you for your time!

18 January 2019 973 3 View

How to check if an internal coordinate is totally symmetric with the help of the molecular structure?

I would like to decide whether a given internal coordinate (angle or dihedral angle) is totally symmetric, i.e., E(y1,y2,...,yi+delta,y[3N-5/6])=E(y1,y2,...,yi-delta,y[3N-5/6]) for any delta,...

14 January 2019 2,894 3 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

Can water be extracted from Olivine?

I have always been interested in geology and wondered about how unique structures of materials behave in different circumstances. I stumbled upon Olivine, the magnesium iron silicate, and heard...

28 February 2021 7,330 4 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

What is the detection limit of ED-XRF technique for transition metals in silicon ?

Hi everybody, please, can someone tell us if the transition metals (W, Fe, Ni, etc ...) in silicon destined for solar cell manufacturing can be detected by ED-XRF technique. Note that the...

18 February 2021 6,231 4 View

Passivation of chromium cast Iron in high temperature?

14 February 2021 2,157 3 View

Acid phenol:chloroform (25:24:1) for RNA extraction instead of (125:24:1)?

Hi everyone! I am about to extract RNA for RNA sequencing assays and my Invitrogen kit/protocol...

14 February 2021 1,755 3 View

Why ICP-MS test for Teflon filters that collected PM2.5, show really high results in the millions of ug/g ?

I analyzed soil and ash samples using ICP-MS for 28 metals, then I resuspended those samples to collect PM2.5 particles in a filter using a selective inlet inlet. My only issue that Fe and Al...

13 February 2021 7,592 3 View

Does any one have experience with Autoclavable cell culture media (RPMI 1640/DMEM)? Does it work well?

12 February 2021 2,958 1 View

How to interpret different leached phases of metapelites?

Extraction of three different phases of metapelites, mostly phyllites as the Carbonate phase, Fe-Mn Phase, and Silicate phase has been obtained. After doing ICPMS, different results have evolved....

11 February 2021 5,198 10 View

Any probe or assay for the detection of Cysteine in yeast invivo ?

Dear fellow researchers, I would like to detect the cysteine levels for yeast in vivo. I would really appreciate if anyone could suggest me any fluorescent probe or assay kit available. Currently...

11 February 2021 3,292 3 View