Can anyone debug this code? I get the attached error when I run it,. Do I have an installation issue?

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How to perform Cox proportional hazard analysis or Kaplan-meier survival analysis in SPSS?

At first please see the attachment. This experiment was performed for a period of 7 days (n=100). After 7 days, we found different level of survival rate (%) for each treatment. Now, I want to...

15 February 2021 9,145 2 View

For acid treated montmorillonite clays what will be the result of surface area?

The organo montmorillonite nanoclays modified with octadecylamine were used for the experiment. After acid treatment, the surface area will be increase. However, in my experiment, the surface area...

10 February 2021 1,581 3 View

How to identify when a gaussian program is about terminate normally?

Dear all, I am trying to optimize a bimetallic complex using # opt=tight b3lyp/lanl2dz scf=qc geom=connectivity. The program is running for around 5 days but the size of the .chk remains same...

05 February 2021 8,721 3 View

Can I use 500ng of DNA for restriction digestion?

The recommended amount of DNA for restriction digestion is 1ug in a 50ul rx I've got around 500-600ng of DNA in a total volume of 35ul. Would I get satisfactory results with this amount of DNA for...

31 January 2021 729 6 View

What is the effectiveness of online teaching during COVID-19?

Please share your experience on the effectiveness or challenges on online teaching during Covid-19 lock down. Share your experience about challenges, technology, online learning platform,...

26 January 2021 4,532 37 View

LC-MS metabolomics data after annotation some have their compound name but no KEGG id or with KEGG id but no pathway. How to interprete?

Recently I have generated LC-MS metabolomics data. After annotation, some have their compound name but either no KEGG id or KEGG id but no pathway. How to interpret those compounds? Additionally,...

18 January 2021 1,938 3 View

Has there been any scholarly research done in schools that addresses teaching from a global citizenship perspective to deal with global problems?

The current global pandemic, the climate crisis, the destruction of the oceans (with plastics, etc), and massive numbers of refugees are part of a set of serious global problems. It is clear...

13 January 2021 2,022 3 View

How to remove a citation from list of research articles?

I want to remove a duplicate citation

01 January 2021 3,983 3 View

No executable file generates while building geant4 example code, where is the problem?

Hello, I am a newbie in geant4. I'm learning it playing with example. Sometimes, when I go to simulate an example code, it doesn't create an executable file (the green one in my ubuntu terminal)....

26 December 2020 9,482 3 View

How to get structure and topology for glycosaminoglycan (GAG) of arbitrary length?

Hello all, I want to do glycosaminoglycan (GAG) simulation in Gromacs. Initial structure and CHARMM topology for short chains can be obtained from Charmm GUI glycan modeler. But I have to take...

23 December 2020 6,092 2 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

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

How could I process data in RCT to include it in meta-analysis?

I'm in the process of doing a meta-analysis and have encountered some problems with the RCT data. One of my outcom is muscle strength. In one study, I have three different measurements of muscle...

25 February 2021 7,603 3 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

Satellite orbit estimation using Recurrent Neural Network - what should I use?

Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...

23 February 2021 6,383 3 View

Any Differences in COVID-19 vaccines?

Are there any differences (outside of the clinical trials that led to their EUA) observed in the rate of infection among those who have received the Pfizer vs Moderna vaccine since the mass...

22 February 2021 9,727 6 View

How can I get the coding gene sequences of Hela and U2OS cell lines? Is mRNA sequence of Hsp90 alpha tissue specific??

I am looking for hsp90 mRNA sequence in Hela and U2OS cell lines, I have tried through ncbi but always the output is hsp90 in homo sapiens not in the specific cell line. Kindly, could any one...

22 February 2021 1,853 3 View

How to constrain genetic algorithm input u?

My real system (buck converter) can only take an input of 0 to 1 (duty ratio) and I need to constrain the system so the controller action keeps within this bounds. How can I do this? The code for...

22 February 2021 2,125 3 View