19 February 2020 1 7K Report

i am trying to induce second degree skin burns in rat models and i am unable to find a standard protocol including the quantity of acid to induce the burns.

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Can someone help me with this error that I am getting while estimating a VAR model in R?

I am using annual time series data to estimate a VAR model in R. However, when I run the command to find the optimal lag length, I get the following error: Fehler in VARselect(data, lag.max = 10,...

18 February 2021 9,647 3 View

How to avoid polypyrrole deposit on counter electrode?

Hi all, Currently, I electrodeposited polypyrrole on carbon electrode but I got some problem when polypyrrole also deposited on the surface of the counter electrode. The concentration of pyrrole...

05 February 2021 2,103 3 View

How to Extract DNA from dried rhizomes, wood, galls etc. stored for a long time?

Dear Respectable Scientists, I have been trying to extract DNA from above mentioned sources using different CTAB/SDS Buffer Compositions and purifying agents but I am not able to extract DNA from...

12 January 2021 5,899 8 View

A three level hierarchical data structure in multilevel modelling, for multiple response question?

Im refering to Andy Field's example in his book Discovering statistics using SPSS, 3rd edition, page 728, where he gives an example of a data structure with level 1 variable is a memory recall...

26 December 2020 9,717 6 View

How to carry out Fisher's Exact Test in SPSS for multiple Response Dataset?

I have a dataset including Categorical variables and involves multiple response variable. 20% of the cells in cross tab has less than 5 frequencies and hence I cannot carry out a Chi-square Test....

26 December 2020 4,180 3 View

**CLOSED** Behavioral changes due to Covid-19?

Hello fellow researchers around the globe :) Happy Holidays!! We are conducting a survey on understanding how device usage during everyday life has developed amid the Covid-19...

21 December 2020 5,363 4 View

Does the Chinese navigation satellite system (Beidou) become global or still regional?

I know that this system was regional before, thus covering specific areas not alla the global

09 December 2020 3,343 3 View

How to convert Unit/mL enzyme concentration to FPU/mL or FPU/g concentration?

Is there any conversion formula for this purpose.

06 December 2020 3,283 3 View

How many LED bulbs (warm light) will be required for algal growth?

We have 10 glass boxes with 6 inches width and 12 inches depth. How many LED bulbs or halogen lamps will be required to achieve irradiance of 150 umol/s/m2.

23 November 2020 9,414 4 View

What major hardships teachers are going through due to COVID-19?

Teaching Hardships during COVID-19 in 2020 Please highlight what type of hardships, difficulties you as a teacher going through during these trying times due to COVID-19 around the globe? Even...

05 November 2020 4,142 20 View

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What are the most reliable approaches to extract key continuous frames from a video, with complete automation?

I have an input video, of skin (from a microscope that means it is magnified such that blood capillaries are visible). The idea is to extract 15 sec of continuous frames from a video of 1 min,...

02 March 2021 2,735 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 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

What is the best surface to culture cells isolated from a skin biopsy?

Hello, recently I am having some difficulties with maintaining the cell culture of primary cells isolated from a skin biopsy (normal and malignant). The coating of culture plates with Matrigel (a...

26 February 2021 6,151 2 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

What are the pros and cons for mice versus rats?

Hi Everyone, I am designing a pilot study using rodents to assess the effects of simulated space environments (radiation + altered gravity) on microbiome and immune system. I have limited...

24 February 2021 1,825 3 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

What should be the duration of exposure to simulated space environments with Rodents?

Hi, I am currently working on a pilot study to get some data related to the impact of long duration spaceflight to the microbiome and the immune system. I plan to use rats and simulate...

22 February 2021 592 1 View

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 View

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