Which is the best Internet of Things (IoT) Simulator for Bachelor and Master level Education?

My concern is to build or develop a network or architecture where sensors seamlessly emit the data to the system and data analytics can be carried out in real-time, and the useful information can...

04 March 2019 5,015 12 View

How to determine a pure organic catalyst is homogeneous or heterogeneous?

Hello all, I am using pure organic compound with good thermal stability and it is practically insoluble in most of the solvents as catalyst for C-C bond formation. I want to determine its nature...

05 June 2018 4,061 13 View

What happens during continuous usage of spectrophotometer?

If a spectrophotometer is used continuously for three days without turning the lamps off in between, how could it affect the readings?

27 June 2017 559 3 View

What are the chances of impurities at the end stage chromatography?

What are the chances of impurities at the end stage chromatography? What all can lead to this? How to rectify?

17 March 2017 8,855 3 View

Can someone explain Measurement, Offset and Slope of a pH meter?

Can someone please explain Measurement, input, offset and slope of a pH transmitter. My transmitter gives slope in the range of 12-25% mA. What does that mean? How do I compare it with 92-102%...

07 July 2016 4,793 4 View

Why do inline and offline pH probes show different values?

Inline pH probe and offline desktop pH probe, calibrated with same buffers show different pH of a solution at the same time. What can be the reason?

23 June 2016 3,015 4 View

Can anyone please explain what exactly is the integral of viable cell concentration and explain how it is calculated?

Details of IVCC needed

19 July 2014 9,162 4 View

What is the formula to calculate the critical value of correlation?

I am calculating the correlation values between two data sets of size 257. I want to know what is the critical value of correlation for a sample size of 257. I tried searching on the web, but...

12 December 2013 8,532 18 View

Any advice on stock solution preparation of 1-DL-Methyl Tryptophan?

Has anyone worked with 1-DL-Methyl Tryptophan? I am facing a problem with stock preparation of 1-DL-MT. The problem is a precipitation issue as soon as the pH of 0.1 N NaOH (having 1-MT; pH-10.5)...

25 November 2013 2,156 3 View

Can anyone recommend a smaller flourescent protein?

I am looking for a fluorescent protein with AA chain shorter then GFP for FRET studies.

06 November 2013 7,226 2 View

How can the use of Jolly Phonics improves the quality of reading, speaking and writing in rural disadvantaged communities in Papua New Guinea?

Jolly Phonics reading program is an effective way to teach early reading to young learners. How can lectures at the university prepare early childhood student teachers to teach Jolly Phonics to...

03 March 2021 3,731 3 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

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 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