How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View

Are international conferences a dying species?

In our discipline (chemistry), annual meetings of the American Chemical Society (ACS) used to be mega-events with up to 20,000 participants. The current one will be virtual, and the organizers...

06 January 2021 1,882 5 View

How to avoid rejection of your research paper?

Despite certain disadvantages, peer-review is generally accepted as a quality control of manuscripts submitted to scientific journals. The higher the rank of the journal, the more often...

03 December 2020 3,235 17 View

How important are citations? Are they overrated?

Citations of research papers are the topic of various threads on this platform. Quite often researchers ask how to increase the number of citations. I did my first 30 years of chemical research in...

01 December 2020 6,173 94 View

How to find the number cells in each LSTM hidden layer from python code?

LSTM has two hidden layers, I want to know the number of cells in each hidden layer.

30 November 2020 3,481 4 View

How can we sell chemistry to the public?

Chemistry is frequently termed the "central science". It underlies the foundation of modern civilization (drugs, plastics, textiles, dyes, fertilizers etc.), but the public perception of chemistry...

30 November 2020 1,113 15 View

How can chemistry help fighting COVID-19?

Chemistry is frequently termed the "central science". As such, chemistry is expected to play a major role in fighting the coronavirus. For example, hand sanitizers and drugs are all based on...

30 November 2020 4,983 17 View

What was your most exciting research achievement?

As dedicated researchers we all try to contribute to the advancement of our discipline. Often the work can be routine, but occasionally there are some real highlights. Can you please share your...

23 November 2020 4,150 20 View

Is vertical farming the future of agriculture?

Please provide your opinion on vertical farming. Is it the future of agriculture? If yes, where is it most promising (areas, countries cities etc.)?

17 November 2020 3,934 97 View

Is peer-review censorship or necessary evil?

Most researchers have made individual experiences with publishing in peer-reviewed journals. What is your opinion about the peer-reviewing process in general? In your opinion, is it "censorship",...

28 October 2020 3,631 97 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

The procedure compute?

02 March 2021 5,204 3 View