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

Which DL architecture is better to work on handwritten data?

I am working in the area of Handwriting recognition for Bangla. As there are many DL architecture, I am confused which one to select.

15 February 2021 4,996 1 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

Do you have any experience of taking astaxanthin supplement?

Astaxanthin is a keto-carotenoids having reddish color. It occurs naturally in certain algae and causes the pink or red color of different seafood especially salmon, shrimp, trout, and lobster....

29 January 2021 7,861 2 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

How to remove/reduce Back Reflection from Objective?

I want to have a optical system where, I focus a beam onto the BFP of a microscope objective. Unfortunately, I always have a strong Back Reflection from the objective. Can anyone suggest me some...

18 January 2021 2,062 8 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

How to calculate binding energy and different interactions from a pdb file of protein-ligand complex?

I have done a docking study by using mcule.inc web-service. I got the .pdb file of my protein-ligand complex from there. As I am using a free student account, I don't have access to more...

14 January 2021 2,321 2 View

How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials?

Hi, all! How can we use a hybrid element in Abaqus Dynamic/Explicit for impressible materials? I have not find the choice for explicit element in Abaqus CAE. I am wondering whether it is possible...

25 February 2021 9,936 2 View

In which case meta-heuristics algorithms cannot minimize the network error?

Hello, I am working on hybrid neural network. I have combined ANN with two different evolutionnary algorithms to build a prediction model of 6 inputs and one output with one hidden layer of 7...

18 January 2021 7,144 3 View

What is the most suitable experimental design?

I am planning to do a study with the help of 45 farmers who are going to produce hybrid chilly seed for the first time, and I want to measure in what way semi-automated greenhouse will affect on...

14 January 2021 2,799 4 View

Hi, what is the problem , I am unable to upload my Research article. It IS asking only authors can upload while I am author?

12 January 2021 3,050 5 View

What are the dominant factors contributing to the success of electric vehicles in the marketplace?

Early innovation by Toyota via the Prius established an early adopter crowd for electronic vehicles. Since, competition in many offerings: GM (Volt, Bolt), Nissan (Leaf), and the rise of Tesla set...

02 January 2021 1,787 13 View

How to Interpret Photoluminescence Spectrum of Mixed Pb-Sn FA0.7MA0.3Pb0.7Sn0.3I3 Perovskites?

Dear Researchers, I hope you all will be in good health. I am writing this to request for your guidance. I am working on the fabrication of low bandgap Pb-Sn mixed perovskite with exact...

23 December 2020 1,147 1 View

Transgenic or Mutagenic organisms, which is more stable genetically?

Hello, Which of these genetically altered organisms is more suitable for Scientific research? Is it the Transgenic hybrids or the Mutagenic organisms? Which is more genetically stable to be used...

16 December 2020 2,049 3 View

What are best conditions for in vitro hybridization?

Hello, I would like to hybridize a probe and an anti-probe (ssDNA oligonucleotides) in a reaction vessel. What would be the best buffer to use? and the temperature of annealing? Thank you

06 December 2020 4,121 0 View

How to form a quasi-ominidirectional beam with antenna arrays?

For beam alignment (802.11.ad) in a mmWave MIMO system, the transmitter starts with a quasi-ominidirectional beam. My question is how to design the hybrid precoder for a quasi-ominidirectional...

11 November 2020 7,516 3 View

Is the rarity of earth metals and the refinement of the metals with harsh chemicals stalling the acceptance of electric vehicles (EV)?

Some of the metals used to build the battery pack for a hybrid car or electric vehicle can only be mined in certain areas of the world. Is this slowing down the acceptance of the vehicles? Thank...

08 November 2020 934 3 View